• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a chain clamping arrangement (2) for a column pipe which is arranged to house a submersible pump. The chain tensioning arrangement (2) is characterized in that it comprises a radially extending crossbeam (13), a cross-beam connected (16) and an arm spring arrangement comprising at least one spring (17), (18) crossbeam and comprising a engaging elements movably connected to (19) arranged to selectively engage a chain connected to the pre-element pump. The arm is displaceable in the axial direction between a lower position and an upper position. The spring element is arranged to displace the arm in the direction from the lower position towards the upper position. The invention also relates to a pump station comprising a column pipe, a submersible pump arranged in the column pipe and an axially extending chain connected to the pump and arranged for transporting the pump in the column pipe. The pump station is characterized by the chain tensioning arrangement according to the invention. Publication image: Figure 9a
    公开号:SE1550380A1
    申请号:SE1550380
    申请日:2015-03-31
    公开日:2016-04-03
    发明作者:Jens Reimer
    申请人:Xylem Ip Man S À R L；
    IPC主号:
    专利说明:

    TECHNICAL FIELD OF THE INVENTION The present invention relates generally to a chain clamping arrangement for a column pipe. In particular, the present invention relates to a chain clamping arrangement for a column pipe which is arranged to house a submersible pump. In a second aspect, the present invention relates to a pumping station comprising a column pipe, a submersible pump arranged in the column pipe and an axially extending chain connected to the pump and arranged for transporting the pump in the column pipe.
    Background of the Invention and Prior Art In certain types of liquid handling, for example the transport of large volumes of easily contaminated water such as stormwater, a submersible pump in the form of an axial pump has a number of advantages. Axial pumps are arranged submerged in column pipes and are typically electrically driven where the power supply to the pump takes place via one or more cables which extend down to the pump via the interior of the column pipe.
    The pump is thus normally intended to be placed in a single column tube which is partially immersed in the pumped medium. Commissioning, the axial pump is lowered into the column pipe until it rests on a bottom flange in the column pipe and thus closes tightly against the column pipe. Consequently, the pump is completely or partially immersed in the medium when it has assumed its operating position. Undercurrent, the column pipe also acts as an outlet pipe for the pumped liquid. Before service, the pump is lifted up and out of the column pipe.
    Both immersion and hoisting of the pump are normally done by means of a winch device such as a fixed or mobile crane comprising a strong chain or chain whose lower end is arranged with a hook. The hook is designed to be able to be hooked into a lifting bar at the pump. Axial / vertical transport of the pump through the column tube is then possible when the hook is in engagement with the lifting bracket.
    When the axial pump is raised to the operating position, it is necessary according to the prior art to detach the hook from the lifting bar and completely remove the chain from the column pipe. This is done to avoid the strong liquid flows that always occur in the column pipe during axial pump operation. Such an uncontrolled rotational pivoting movement of the chain would inevitably damage the electrical cables extending from the pump. It should be displaced and up the column pipe to an upper end thereof. It should be mentioned that the electrical cables are connected to and axially along a tensioned wire extending from the column pipe and upwards. End. If the power cables were not connected to the wire, they would be set in a rotating oscillating motion and damaged against the inside of the column tube.
    However, the above-mentioned known method comprising removing the chain before pump operation suffers from at least a significant disadvantage. More specifically, there is no single way to hook the hook of the previously removed chain into the lifting bar of the pump before an impending lifting of the pump. In this context, a laborious and time consuming method of coupling the hook with the bracket is to hoist the open hook down to the appropriate position in height and then try to hook the open hook into the pump lifting bar. Alternatively, a guide line can be used that runs from the marking lawn, the sub-pump lifting bar and back to the ground level. By connecting the pre-hoisting of the pump to the guide line with the hook of the chain and then lowering the hook, one can helpfully steer the hook of the chain to the correct position.
    Brief Description of the Objects of the Invention The present invention aims to obviate the above-mentioned disadvantages and shortcomings of prior art solutions by providing a chain tensioning arrangement. A basic object of the invention is to provide a chain clamping arrangement of the initially defined type, which chain clamping arrangement means that the chain does not have to be removed from the column tube due to the chain clamping arrangement greatly reducing, and at best completely preventing and swinging. effect these oscillations would have had on the power cables.
    A related object of the invention is to reduce / eliminate the oscillations of the chain in a controlled and controllable manner.
    A further object of the present invention is to provide a chain tensioning arrangement, which enables permanent removal of the tensioned wire to which the cable cables are connected according to the existing technical solution.
    It is another object of the present invention to provide a chain tensioning arrangement which, in the case of both lowering and lifting of the pump, enables recirculation, i.e. a temporary interruption during immersion / hoisting of the pump in order to, for example, adjust the position where the crane grips the chain, when the crane's lifting height is less than the length of the column pipe.
    Brief description of the features of the invention According to the invention, at least the basic object is achieved by means of the initially defined chain clamping arrangement and the pump station comprising a column tube, a submersible pump arranged in the column tube and an axial articulated chain connected to the pump and conveyor in the independent claims. Preferred embodiments of the present invention are further defined in the dependent claims.
    According to a first aspect of the present invention there is provided a chain tensioning arrangement of the initially defined type, and according to a second aspect of the present invention there is provided a pumping station, the chain tensioning arrangement being characterized therein comprising a radially extending cross member connected to a cross member spring arrangement comprising at least one spring element, and an arm movably connected to the cross member and comprising an engaging element arranged to selectively engage a chain connected to said pump, the arm being displaceable in the axial direction between a lower position and an upper position, wherein said at least one spring element is arranged to displace the arm in the direction from the lower position towards the upper position.
    Thus, the present invention is based on the insight that, when the engaging element of the arm is engaged with the chain, the oscillations of the chain are reduced by a single displacement of the arm in the direction from the lower position towards the upper position, i.e. towards the open end of the column tube, tightens and stretches the chain.
    In addition, it provides a stretched, substantially immovable chain possibility to connect the electrical cables to it and consequently dispense with a dedicated cable.
    Furthermore, the use of the chain clamping arrangement also makes it possible to keep the pump in the reached height-joint position inside the pipe during retrieval. The chain clamping arrangement can support the entire weight of the hanging pump, the engagement element of the arm being engaged with the chain.
    According to a preferred embodiment, the chain tensioning arrangement also comprises means for adjustably limiting said at least one spring element displacement of the arm. It will be appreciated that an adjustable control of the magnitude of the displacement makes it possible to adjust it in a controlled manner. More specifically, the size of the displacement can hereby be adjusted to exactly match the slack of the chain, i.e. a completely stretched chain has been obtained. the displacement preferably lasts until According to a preferred embodiment of the present invention, the arm is pivotable in a radially extending plane between an active position and an inactive position. According to this, the chain clamping arrangement has a pivotable arm, the engaging element whose engaging element is, is in the active position, in engagement with the chain. The clamping arrangement according to this embodiment is particularly suitable for use in retrieval.
    According to another preferred embodiment, the at least one spring element consists of a helical spring. A single-technical solution is hereby achieved. In addition, the use of a coil spring, when having a plurality of spring elements, means that these elements can easily be arranged in such a way, for example connected in series, that the total spring action increases in proportion to the number of spring elements.
    According to another preferred embodiment, the means is to adjustably limit the displacement of the at least one spring element of the arm by a screw. This provides a proven and robust solution which for a long time and without impaired functionality can withstand the harsh conditions inside the column tube. The screw is operated with a suitable tool.
    In an alternatively preferred embodiment, the lower end position of the at least one spring element can be adjustable in the axial direction. This provides a single alternative way of regulating the degree of displacement of the arm. Movement of the lower end of the spring element can, for example, be controlled by means of a suitable screw.
    Further advantages and features of the invention will become apparent from the other dependent claims and from the following detailed description of preferred embodiments.
    Brief Description of the Drawings A more complete understanding of the above and other features and advantages of the present invention will become apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings, in which: FIG. Fig. 1 is a schematic sectional front view of a single installation comprising an inventive pumping station with a chain clamping arrangement, a schematic perspective view from above of a ready-to-operate pumping station comprising an inventive chain clamping arrangement according to a first embodiment, the column pipe is shown partially transparent. Fig. 2b is a schematic front view of only the chain tensioning arrangement according to the first embodiment when it is ready for operation in accordance with Fig. 2a; Fig. 2c is a schematic top view of the chain tensioning arrangement according to the first embodiment which is ready for operation in accordance with Fig. 2b; Fig. 3a is a schematic perspective view from above of a pump station in which the pump is under hoisting / immersion, the column tube is shown partly transparent, Fig. 3b is a schematic front view of only the chain tensioning arrangement according to the first embodiment when the pump is under hoisting / immersion in accordance with Figure 3a, Fig. 3c is a schematic top view of the chain tensioning arrangement according to the first embodiment when the pump is under hoisting / lowering according to Fig. 3b, is a schematic perspective view from above of a pump station in which the chain and the axial pump are being taken over, the column tube is shown partly transparent, Figs.
    FIG.
    FIG.
    FIG.
    FIG.
    FIG.
    Fig. 4b 4c 6a 6b 7a 7b 9a is a schematic front view of only the chain clamping arrangement according to the first embodiment when the pump is being taken over in accordance with Fig. 4a, is a schematic top view of the chain clamping arrangement according to the first embodiment when the baptismal pump is being taken over according to Figure 4b, is a top plan view of the front of the chain clamping arrangement according to the first embodiment when it is ready for operation according to Figures 2b and 20, is a top perspective view of the back of the chain clamping arrangement according to the first embodiment when the same is ready for operation according to Figure 5a, is a schematic front view of the chain clamping arrangement according to a second embodiment shown operatively corresponding to Figure 2b, is a schematic top view of the chain clamping arrangement according to the second embodiment operatively shown in accordance with Figure 6a, is a schematic front view of the chain tensioning arrangement according to d a second embodiment when the pumping year during lifting / lowering corresponds to figure 3b, is a schematic top view of the chain clamping arrangement according to the second embodiment when the pumping year during lifting / lowering according to figure 7a, is a schematic front view of the chain clamping arrangement according to the second embodiment when pump year under recess corresponding to Fig. 4b, is a top perspective view of the front of the chain clamping arrangement according to the second embodiment when the same is operational in accordance with Figs. 6a and 6b, Fig. 9b is a top perspective view of the chain clamping arrangement according to the second embodiment when the same is ready for operation in accordance with Fig. 9a, Fig. 10a is a schematic sectional front view of an upper part of the pump station showing the chain clamping arrangement, the axial pump chain and electrical cables running parallel to the chain; Fig. 10 is a schematic sectional view from the side of the upper part of the pump station Figure 10a, Fig. 11a is a schematic perspective view from above of a first element of a power cable holder, which first element is arranged to be attached to the power cables, and Fig. 11b is a schematic perspective view from above of a second element of the power cable holder, which second element is arranged to be attached to the chain.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The present invention relates in particular to a chain clamping arrangement arranged to be used in a column tube which is arranged to house a submersible pump.
    Reference is initially made to Figure 1, which is a schematic sectional front view of an installation of a single pump station, generally designated 1.
    The pump station 1 comprises a chain clamping arrangement, generally designated 2, which is arranged in the area of an upper end of a column pipe 3 housing a submersible pump 4. The submersible pump 4 is in the illustrated embodiment of an axial pump having a weight of the order of 11 , 5 tons, however, it should be mentioned that there are axial pumps that weigh a few hundred kilograms as well as there are other axial pumps that weigh several tons. The column pipe 3 is open at both ends, and is typically 4-8 m long and usually has a diameter of the order of 0.5-1 meters, although other dimensions are present. The submersible pump 4 shown stands on a bottom flange 5 in the column pipe 3 and closes tightly against the column pipe 3. A chain 6 which is part of a winch device (not shown) is connected to the pump 4. The column pipe 3 creates a fluid connection between a lower basin 7 filled with a medium to be pumped and an upper basin 8 intended to receive the pumped medium. The pumped medium can for instance consist of stormwater, slightly contaminated wastewater, etc. The chain clamping arrangement 2 is arranged inside the column pipe 3, more precisely in connection with its upper end to allow operation thereof. The various components and operating principles of the chain tensioning arrangement 2 will be described in more detail below with reference to Figures 2-5, which show a first embodiment of the present invention, and Figures 6-9, respectively, which show a second embodiment of the present invention, the second embodiment sleeves in general. It should be pointed out that the chain clamping arrangement 2 does not necessarily have to be arranged inside the column tube 3 but can be arranged directly above the column tube 3, i.e. in connection with the upper basin 8. It should further be pointed out that the chain clamping arrangement 2 can also be arranged in other pumping stations / basins and is not limited to use in connection with a column column 3. In an alternative, not shown, embodiment (ie which houses the submersible includes pump station a basin a liquid holding unit equivalent to the column pipe) pump. A chain is connected to the pump and the pump is (ie fluid connection equivalent to the column tube). an outgoing reference is now made to Figures 2a-2c, where Figure 2a is a schematic perspective view from above of a pump station including the chain clamping arrangement 2 installed in the column pipe 3 and with an associated axial pump 4 located at the bottom end of the column pipe 2, In the embodiment shown, the pump 4 is ready for operation in order to pump the medium in the upward direction in the figure. Two electrical cables 9 extend from the pump 4 to an upper end of the column pipe 3 and further to a control cabinet or the like. The electrical cables 9 are connected to the co-chain 6 by means of a plurality of two-part electrical cable holders, generally designated 10, which will be described in more detail below with reference to Figures 11a and 11b. A hook 11, lower end and engaging a lifting bracket 12 of the pump 4 or lifting loop, is arranged in the chain 6. The chain clamping arrangement 2 comprises an irradiated joint extending cross beam 13 which in the shown embodiment comprises at least one pin 14 at respective opposite ends thereof, the pins 14 are arranged to be releasably connected to the corresponding seats 15 in the column tube 3. In the embodiments shown, the horizontal beam 13 is arranged horizontally. According to an alternative, not shown, the cross beam is only connected to (in engagement with) the column tube 3 at one end and projects like a bracket from the inner wall of the column tube 3. According to a further alternative, not shown, embodiment, the crossbeam comprises three or more beam segments connected to each other as, like the shape of a star, and connected to (in engagement with) the column tube. Furthermore, the chain tensioning arrangement 2 comprises a spring arrangement 16 connected to the crossbeam 13 and comprising at least one spring element 17. The chain clamping arrangement 2 also comprises an arm 18 which is movably connected to the cross beam 13 and which comprises an engaging element 19 arranged to selectively engage the chain 6. The arm 18 is displaceable in axial direction between and an upper a lower position, adjacent cross beam 13, position, axially spaced from the crossbeam.
    The at least one spring element 17 is arranged to displace the arm 18 in the direction from the lower position towards the upper position, i.e. upwards in Figures 2a-2c. Any displacement of the arm 18, when the engaging element 19 of the arm 18 is in engagement with the chain 6, means that the chain 6 is tensioned 11 and stretched so that its slack becomes smaller or is completely eliminated. This prevents the chain 6 from rotating / pivoting in the column tube 3 since the freedom of movement of a single-stranded chain is severely limited compared with the freedom of movement of a slack chain. Consequently, the detrimental effect these oscillations have on the pivot cables 9 and the column tube 3 is also reduced / eliminated.
    In this way, the overall purpose is achieved, i.e. to eliminate the need to remove the chain 6 from the column pipe 3 before pump operation while keeping the power cables 9 undamaged. This of course also means that hooking the hook in the pump lifting bracket is not required either. Significant time losses and inconveniences in connection with service can thus be avoided by means of the chain tensioning arrangement according to the invention.
    The chain tensioning arrangement according to the first embodiment further comprises means for adjustably limiting said at least one spring element 17 displacement of the arm 18 in axial direction. Said means will be described in more detail below with reference to Figures 5a and 5b.
    The various components of the chain clamping arrangement are shown from the front in Figure 2b and from above in Figure 2c. In Figures 2b and 2c, the chain clamping arrangement 2 is exposed from the column tube and chain, but remains in the ready-to-operate position.
    Figure 2b thus shows, among other things, the spring arrangement 16 which in the embodiment shown comprises three spring elements 17. Here, said spring element 17 consists of helical springs. This solution is easily scalable in that it allows series connection of individual helical spring elements. In operation, the arm 18 is located between the lower position and the upper position and the spring elements 17 are thus partially i.e. triggered, neither fully compressed nor fully expanded.
    According to an alternative, not shown, embodiment, the spring arrangement comprises 16 leaf springs, disc springs, etc.
    Central to the spring arrangement 16 is that a relatively short stroke is required and a high spring constant. In the embodiment shown, the stroke is of the order of 5-10 centimeters. The spring elements 17 must be dimensioned to stretch the chain 6 but not be able to lift the pump 4.
    Reference is now made to Figure 2c as, inter alia, the pointer arm 18 which is, as mentioned above, movably connected to the cross beam 13 by being axially displaceable relative to the cross beam 13. In the embodiment shown, the arm 18 is connected to the spring arrangement 16 at one end, more precisely with a rod 20 included in the spring arrangement 16 and at its free end, the arm 18 has the above-mentioned engaging element 19, which will be described in more detail with reference to Figure 5a. The rod 20 is displaceable in the axial direction together with the arm 18.
    The arm 18 has a radial main extension and is preferably pivotable in a radially extending plane around the pivot axis 21 which coincides with the center axis of the rod 20. The crossbeam 13 shown extends parallel to the plane in which the arm 18 is pivotable. In figure 2c the arm 18 is shown pivoted to an active position where the engaging element 19 is in engagement with the chain (removed). Analogously, the arm 18 is in an inactive position when the engaging member 19 is pivoted away from the position shown in Figure 2c. The arm 18 is the via rod 20 connected to the spring elements 17. Alternatively, the direct connection between the arm 18 and the spring elements 17 can be realized.
    In the following and with reference to Figure 2, the function of the chain clamping arrangement 2 is described according to the first embodiment in connection with the installation of the pump 4 in the column pipe 3 and the commissioning of the pump 4.
    The pump 4 is lowered from the ground level by means of the chain 6 and arranged so that it closes tightly against the bottom flange 5 of the column pipe 3. When the pump 4 is on the bottom flange, the chain 6 is slack. The chain clamping arrangement 2 is now put in place in the upper end of the column tube 3, and it is ensured that the arm 18 is moved in its lower position, abutting the cross beam 13 or located in close proximity to the cross beam 13. The chain 6 is stretched / lifted by hand and tightened to the maximum. Thought chain link which corresponds correspondingly to the position of the arm 18 in height is then moved into the engaging element 19. The arm 18 is allowed to be displaced towards the upper position under the action of the spring element 17. The size of the displacement is of the order of 5 centimeters. Consequently, the chain 6 is tensioned and stretched so that its slack is significantly reduced or completely eliminated. The pump is now ready for commissioning.
    Reference is now made to Figure 3a, which is a schematic perspective view from above of the pump station 1 while the pump 4 is raised or lowered. Parts / functions that are similar to the embodiments according to Figures 2a-2c are not mentioned. Thus, the pump 4 is not in operation but is raised or lowered into the column tube 3 by means of a suitable winch device. The chain clamping arrangement 2 does not need to be detached from the walls of the column tube 3 during the raising / lowering. On the other hand, the arm 18 must engage, ie.
    This effect element 19 is out of engagement with the links of the chain 6, the arm 18 should be put in its inactive position. It is obtained as shown in figure 3a by pivoting the arm 18 away from the chain 6.
    Analogous to Figures 2a and 2b, the various components of the chain clamping arrangement 2 are shown from the front in Figure 3 and from above in Figure 3c. By comparing the spring arrangement in Figures 2b and 3b, it appears that the spring elements 17i in Figure 3b are maximally expanded. The arm 18 which is connected to the spring element 17 is consequently in the upper position. The spring arrangement exerts no upward force on the arm 18, which can thus be pivoted between the active and inactive positions of the mutual body.
    In the following and with reference to Figure 3, the function of the chain tensioning arrangement in connection with lifting of the pump 4 from the bottom of the column tube 3 to the top of the column tube 3 and / or out of the column tube 3 is described.
    The arm 18 is displaced in the direction of the lower position by the spring element 17 being compressed, whereupon the chain 6 14 slackens and can be taken out of engagement with the arm 18. The arm 18 is allowed to move to the upper position and then pivot away from the active position to the inactive (shown) position and thereby allows the pump 4 to be hoisted up in the usual manner by lifting in the chain 6. Before the pump 4 can be removed from the column tube 3, the chain clamping arrangement 2 must first be removed from the column where the upper end of the arm 3 is. In an alternative embodiment, 18 is not pivotable, the chain clamping arrangement is removed immediately after the engagement between the arm 18 and the chain 6 is broken and the chain is slack, and before the pump 4 starts to be lifted by the chain.
    Reference is further made to Figure 4a which is a schematic perspective view from above of the pump station in a single installation where the so-called retrieval required. Again, parts / functions which are the same as the embodiments according to Figures 2a-2c and Figures 3a-3c, respectively, are not mentioned.
    As mentioned above, the situation / installation requires, among other things, the length of the column pipe, for example when the maximum lifting height of the crane below the actual lifting or lowering of the pump 4 is divided into several sub-steps and one is forced to take turns between them. In those situations, the chain clamping arrangement allowed to secure and retain the pump 4 in the reached vertical position inside the column pipe 3 is preferably used while the recirculation is carried out.
    In the following and with reference to Figure 4, the function of the chain clamping arrangement is described in connection with retrieval during hoisting of the pump 4. Since the pump 4 at the bottom of the column tube 3 has until recently been in operation, the initial situation is that the chain 6 is stretched, the arm 18 engages the chain 6 and is displaced in the direction of the upper position under the action of the spring element 17.
    Before lifting, the arm 18 is displaced towards that lower position and the chain 6 begins to slacken. The chain 6 releases the engaging element 19 from the off-arm 18. The arm 18 is then moved to the upper position and is then pivoted away to the inactive position. The pump 4 is hoisted up to a height allowed by the crane, the chain is thus tensioned due to the fact that the pump 4 now hangs in the chain 6 and the chain runs centrally in the column tube 3. The arm 18 is in the upper position and pivots from the inactive position towards the active position back chain 6 so that the engaging element 19 engages with the thought chain link which best corresponds to the position of the arm 18 in height. The pump 4 is then lowered a few centimeters by means of the tap so that the entire weight of the pump 4 is taken up by the chain tensioning arrangement 2. The arm 18 is thus forced down the position where the arm 18 abuts the crossbeam 13. Then cranes a new hold in the chain 6 near the chain clamping arrangement. The pump 4 is lifted a few centimeters so that the arm18 reaches the upper position. The arm 18 is then pivoted to the inactive position so that the engagement of the intermediate engagement element 19 and the chain 6 is broken. The chain clamping arrangement 2 is removed from the column tube 3 so that the pump 4 can be hoisted all the way up to the top of the column tube 3 and / or out of the column tube 3. Alternatively, one or more recirculations may be needed. The function of the chain clamping arrangement in connection with immersion of the pump 4 is analogous to Thus, the pump 4 is first lowered as much as the crane allows except for at least the centimeters that the pump 4 needs to be lowered when the arm 18 is displaced to the lower position of the weight of the pump 4. The chain 6 which runs centrally in the column tube 3 is tensioned in that it is loaded by the entire weight of the pump 4. The chain tensioning arrangement 2 is put in place with the arm 18 pivoted in the inactive position and in the upper position. The arm 18 is pivoted to the active position so that the engaging element 19 can engage the chain 6. The pump 4 is lowered a few centimeters by means of the tap so that the weight of the pump is taken up by the arm 18 and the chain clamping arrangement 2 when the arm 18 abuts the crossbeam 13. up on the chain 16 and lifts the pump a few centimeters so that the arm 18 is displaced to the upper position of the spring element 17 and can then again be pivoted away to the inactive position. The pump 4 is then lowered all the way down to the bottom of the column pipe 3, whereupon the chain 6 becomes slack. Alternatively, one or more retakes may be needed. The rest of the procedure consists of a tensioning of the slack chain 6 as already described in connection with Figures 2a-2c.
    Analogously to Figures 2b and 3b and Figures 2 and 3c, respectively, the various components of the chain tensioning arrangement are shown from the front in Figure 4b and from above in Figure 4c, respectively. By comparing the spring arrangement in Figures 2b and 3b, it can be seen that the spring arrangement in Figure 4b is maximally compressed. This is because the pump 4 hangs in the chain clamping arrangement and thus the weight of the whole pump loads on the chain clamping arrangement. The arm 18 which is connected to the spring element of the spring arrangement is consequently located in the lower position of the abutment crossbeam 13. The spring arrangement should preferably not bottom out when the arm 18 is in the lower position.
    In the following, reference is made to Figure 5a which is a top perspective view of the front of the chain tensioning arrangement according to the first embodiment and Figure 5b which is a perspective view from above of the back of the chain tensioning arrangement according to the first embodiment according to Figure 5a. Parts / functions that are similar to the embodiments according to Figures 2-4 are not discussed in detail.
    Figures 5a and 5b show, among other things, the crossbeam 13 with pins 14 arranged at the opposite ends of the crossbeam. In addition, the spring arrangement 16 comprising three spring elements 17 which are constituted by coil springs is shown. In the figures, the coil springs are partially released - the chain clamping arrangement is in position when the pump is in operation and the chain clamping arrangement clamps the chain. The arm is in the active position and offset in the direction from the lower position towards the upper position. 17 At its free end, the arm 18 has the engaging element 19. The engaging element 19 has a seat arranged to receive at least one link of the chain 6. A locking pin / locking screw 22 in addition to securing the received chain link in the seat. In the illustrated embodiments, the seat is arranged perpendicular to the main direction of extension of the arm, however, other angular possibilities are conceivable, such as parallel to the main direction of extension of the arm.
    The chain clamping arrangement according to the first embodiment further comprises means for adjustably limiting the displacement of the at least one spring element 17 in the arm 18. In the embodiment shown, the means consists of an axially maneuverable screw 23 which is operated with suitable tools. In an alternative embodiment, not shown, the position of the lower end of said at least one spring element 17 can be adjustable / displaceable in axial direction. Hereby an alternative solution is obtained for the degree of load of the changing spring element 17. The chain clamping arrangement 2 can then be realized without the above-mentioned screw 23. According to a further alternative embodiment, not shown, the screw 23 can be replaced with an adjustable clamp which upon actuation forces the arm 18 from the upper position towards the lower position.
    As previously mentioned, the arm 18 is pivotable about a single pivot axis in a radially extending plane. Arranged in the arm 18 is an arcuate groove 24 in which the axially maneuverable screw 23 is arranged. Their joint action defines the angle of rotation of the arm 18.
    Figure 5b also shows a guide pin 25. The function of the guide pin 25 is to prevent pivoting of the arm 18 when it is in the lower position or in a position remote from its upper position.
    The second, more general, embodiment according to Figures 6-9 is described below. Only differences in relation to the first embodiment will be described below, and it will be appreciated that features and functions of the first embodiment are directly applicable to the second embodiment, and vice versa, unless otherwise indicated.
    The most significant difference between the first embodiment and the second embodiment of the chain tensioning arrangement 2 is that the latter lacks means for adjustably limiting said at least one spring element displacement of the arm 18, thus partly affecting the function of the chain tensioning arrangement 2.
    In the following and with reference to Figures 6a and 6bb, the function of the chain clamping arrangement 2 is described according to the second embodiment in connection with the installation of the pump 4 in the column pipe 3 and the commissioning of the pump 4.
    The pump 4 is lowered from the ground level by means of the chain 6 and arranged so that it closes tightly against the bottom flange 5 of the column pipe 3. When the pump 4 is on the bottom flange, the chain 6 is slack. The chain clamping arrangement 2 is now put in place in the upper end of the column tube 3, and it is ensured that the arm 18 is in the upper position. The chain 6 is stretched / lifted in advance and tightened to the maximum. The chain link which is now located at the height of the top of the crossbeam is observed / marked and the appropriate chain link which is located between the observed / marked chain link and the chain link which is level with the engaging element 19 is selected as the engaging chain link. The position 18 is ensured. The pump 4 is raised in the chain 6 until the engagement chain link in height is level with the engaging element 19. The arm 18 is pivoted back to that active position and the engaging chain link is allowed to engage the engaging element 19. The pump 4 is then lowered so that it again closes tightly against the column flange pipe 3b. Due to its engagement with the chain 6, the arm 18 has been displaced towards the lower position and the spring element 17 has been compressed. The size of the displacement is in the order of 5 centimeters. It should be clarified that the arm 18 is at a distance from the cross beam 13 when the pump 4 is on the bottom flange 5. Consequently, the chain 6 is now stretched so that its slack is considerably less or completely eliminated. The pump is now ready for commissioning.
    Reference is now made to Figures 7a and 7b as the pointer chain clamping arrangement 2 according to the second embodiment while the pump 4 is raised or lowered. Thus, the pump 4 is not in operation but is lifted out or lowered down the column tube 3 by means of a suitable winch device. The chain clamping arrangement 2 does not need to be detached from the walls of the column tube 3 during the lifting / lowering. However, the arm 18 engaging element 19 must be inserted. , i.e. its inactive position. This is accomplished as shown in Figures 7a and 7b by pivoting away the arm 18.
    Analogous to Figures 6a and 6b, the various components of the chain tensioning arrangement 2 are shown from the front in Figure 7a and from above in Figure 7b. By comparing the spring arrangement in Figures 6a and 7a, it can be seen that the spring elements 17i in Figure 7a are maximally expanded. The arm 18 which is connected to the spring element 17 is consequently in that upper position. The spring arrangement does not exert an upward force on the arm 18, which can thus be pivoted between the same active and inactive positions, respectively.
    In the following and with reference to Figures 7a and 7b, the function of the chain tensioning arrangement is described in connection with the lifting of the pump 4 from the bottom of the column tube 3 to the top of the column tube 3 and / or out of the column column 3.
    The pump 4 is raised a few centimeters while the upper arm 18 is displaced in the direction of the upper position under the action of the spring element 17. When the arm 18 is in the upper position it is pivoted away from the active position to the inactive position, whereupon the chain 6 engagement chain link goes out of engagement with the arm engaging element 19. Thereafter, the pump 4 can be hoisted up in the usual manner by lifting in the chain 6. Before the pump 4 can be removed from the column tube 3, the chain clamping arrangement 2 must first be removed from the upper end of the column tube 3.
    Reference is further made to Figure 8 as the pointer chain tensioning arrangement 2 during a so-called recirculation, as described in connection with the first embodiment of the chain tensioning arrangement. During reassembly, the chain clamping arrangement is used to secure and retain the pump 4 in the reached upright position inside the column tube 3 during the reassembly.
    In the following, the function of the chain tensioning arrangement in connection with retrieval during hoisting of the pump 4 is described. The pump 4 is hoisted to a height which the crane allows, the chain is thus tensioned due to the pump 4 now hanging in the chain 6 and the chain runs centrally in the column tube 3. The arm 18 is in the upper position and pivots from the inactive position towards the inactive position towards the chain 6 that the engaging element 19 engages with the chain link which best corresponds to the position of the arm 18 in height. The pump 4 is then lowered a few centimeters by means of the crane so that the whole of the pump 4 is weighted up by the chain clamping arrangement 2. The arm 18 is thus forced down into the lower position where the arm 18 abuts the crossbeam 13. The crane then takes another chain 6 near the chain clamping arrangement. The pump 4 lifts a few centimeters so that the arm 18 reaches that upper position. The arm 18 is then pivoted away to the inactive position so that the engagement between the engaging element 19 and the chain 6 is broken. The chain clamping arrangement 2 is removed from the column tube 3 so that the pump 4 can be hoisted all the way to the top of the column tube 3 and / or out of the column tube 3. Alternatively, an additional one or more recesses may be needed.
    The function of the chain clamping arrangement in connection with take-off during immersion of the pump 4 is analogous to the procedure described above regarding lifting with take-back. Thus, the pump 4 is first lowered as much as the crane allows except for at least the centimeters that the pump 4 needs to be lowered when the arm 18 is displaced to the lower position of the weight of the pump 4. The chain 6 which runs centrally in the column tube 3 is tensioned in that it is loaded by the entire weight of the pump 4. The chain tensioning arrangement 2 is put in place with the arm 18 pivoted in the inactive position and in the upper position. The arm 18 is pivoted to the active position so that the engaging element 19 can engage the chain 6. The pump 4 is lowered a few centimeters by means of the tap so that the weight of the pump is taken up by the arm 18 and the chain clamping arrangement 2 when the arm 18 abuts the crossbeam 13. The crane takes a new step further up the chain and the lifting pump a few centimeters so that the arm 18 is displaced to the upper position by the spring element 17 and then again swiveled away to the inactive position. The pump 4 is then lowered all the way down to the bottom of the column tube 3, whereupon the chain 6 becomes slack. Alternatively, one or more retakes may be needed. The rest of the procedure consists of a tensioning of the slack chain 6 which has already been described in connection with Figures 6a and 6b.
    Analogously to Figures 6a and 7a, the various components of the chain clamping arrangement are shown from the front in Figure 8. By comparing the spring arrangement in Figures 6a and 7, it can be seen that the spring arrangement in Figure 8 is maximally compressed. This is because the pump 4 hangs in the chain clamping arrangement and thus the entire pump failure loads the chain clamping arrangement. The arm 18 which is connected to the spring element of the spring arrangement is consequently located in the lower beam abutting in the lower position 13. The spring arrangement should preferably not bottom out when the arm 18 is in the lower position.
    In the following, reference is made to Figure 9a which is a top perspective view of the front of the chain tensioning arrangement according to the second embodiment and Figure 9b which is a top perspective view of the back of the chain tensioning arrangement according to the second embodiment.
    Figure 9a shows the spring arrangement 16 comprising a spring element 17 which is constituted by a helical spring. In the figures, the spring element 17 is partially released, i.e. the chain clamping arrangement is in the position when the pump 4 is in operation and the chain clamping arrangement clamps the chain 6. The arm is in the inactive position and located between the upper and the lower position.
    At its free end, the arm 18 has the engaging element 19. The engaging element 19 has a seat arranged to receive at least one link of the chain 6. The seat is inclined in the downward / downward direction in order to secure the chain in the engaging element 19. A locking pin / locking screw 22 ensures that the received chain the link is further secured in the seat. In the embodiments shown, the seat is arranged perpendicular to the main direction of extension of the arm, however, other angles are conceivable, such as in parallel with the main direction of extension of the arm.
    When the arm 18 is in the active position, the guide pin 25, which is fixedly connected to the arm 18, can be displaced in the axial direction, at the same time as pivoting of the arm 18 from the inactive position to the inactive position is prevented when the arm 18 is at a distance from the upper position. When the proximal arm 18 is in the upper position, the lower end of the guide pin 25 runs in an arcuate groove 31, whereupon their common action defines the angle of rotation of the arm 18. It should be noted that the gutter 31 is not continuous and thus prevents the arm 18 from being displaced from the upper position towards the lower position when the arm is in the inactive position. This feature can be directly applied to the first embodiment of the chain tensioning arrangement 2.
    Reference is further made to Figures 10a and 10b which are a schematic sectional view from the front and from the side of an upper part of the pump station 1. Both figures contextualize the preferred location and extent of the power cables 9 relative to the chain clamping arrangement 2 and 23 column tube 3. It should be noted that other installations / only one power cable or more two power cables. The two power cables 9 shown together weigh in the order of 4-8 kilograms / meter and have a diameter in the order of 20-40 millimeters. The two power cables 9 shown are connected to the stretched chain by means of a two-part power cable holder 10 which will be described in more detail with reference to Figures 11a and 11b. Thus, a single, substantially immovable chain 6 opens to connect the power cables 9 directly to the chain 6 and consequently eliminates the need for wires as previously used to secure the power cables in such a pumping station.
    Figure 11a is a schematic perspective view from above of a first element 26 of the two-part electric cable holder 10, which first element 26 is arranged to be attached to the cable 9. projections 27 are arranged in a seat 28 on the first two opposite sets of the front of the block mold element 26. There is thus a gap between each pair of adjacent projections. A groove 28 extends substantially along the entire seat of the first element 26, between said two sets of projections 27. The groove 28 is the first element 26 of the cable holder 10 may be made of a suitable polymer adapted to receive links of the chain. Figure 11b is a schematic perspective view from above of a second element 29 of the two-part electric cable holder 10, which second element 29 is arranged to be attached to the chain 6. More specifically, the chain's 6 links, three whole and two half links, are placed in one seat of the other element 29. One and two half links lie flat in the seat and the other two whole links stand on top. This seat is designed to receive and fix the links. The chain is thereby releasably connected to the second element 29. The second element 29 comprises two opposite sets of block-shaped projections 30, complementary to the spaces belonging to the two sets of opposite projections 27 24 of the first element 26. The second element 29 can also be made in a suitable polymeric material.
    In the following, the procedure in connection with the attel cables 9 is connected to the chain 6 by means of the toothed split electric cable holder according to Figures 11a and 11b.
    The respective end section of the first element 26 is fastened, for example by means of vulcanized tape, in advance to the electrical cables 9 approximately one meter apart, the distance between two adjacent first elements 26 along the electrical cables should preferably not exceed 1.5 meters. As the pump 4 is lowered and the chain 6 is tensioned, the links of the second element 29 in the chain are hooked as above at the height of the corresponding first element 26 which is connected to the electric cables 9. While the attel cables 9 are stretched by hand, the second element 29 is engaged with the first element 26 by arranging the projections 30 of the second element between the projections 27 of the first element 26. The electrical cables should be kept as stretched as possible. Thereafter, the first element 26 and second elements 29 of the electric cable holder are secured to each other by means of a cable tie or other similar connection.
    The above procedure is performed while the pump is lowered and the lifting chain is tensioned. When lifting the pump, simply shield the cable ties of the respective electrical cable holder 10 which come out of the column pipe and disconnect the electrical cables 9 from the chain 6 as the pump 4 is lifted.
    In general, the power cable holder 10 can be defined as a single cable holder for anchoring at least one power cable to a chain. The electric cable holder comprises a first element 26 arranged to be connected to said at least one electric cable and a second element 29 arranged to be connected to said chain, the first element 26 having a seat 28 in which the second element 29 is releasably received, said second element 29 being arranged to the seat 28 selectively occupy either of at least two, axially and relative to the first element 26, axially spaced positions.
    Conceivable modifications of the invention The invention is not limited only to the embodiments described above and shown in the drawings, which are for illustrative and exemplary purposes only. This patent application is intended to cover all modifications and variations of the preferred embodiments described herein, and accordingly, the present invention is defined by the wording of the appended claims and the equivalents thereof. Thus, the equipment can be modified in any conceivable way within the scope of the appended claims. For example, the arm may be of fixed, i.e. non-pivotable, type and arranged perpendicular to the cross member and the rigid connection therewith. The outermost part of the free end of the arm is then constituted by an engaging element set up to be able to engage with one of the links of the chain. It should also be pointed out that all information about / concerning must be interpreted / read with the equipment oriented in terms of above, below, upper , lower, etc., the figures, with the drawings oriented in such a way that the reference numerals can be read correctly. Thus, such terms only indicate to each other which conditions can be changed if the equipment according to the invention is provided with a conditions in the embodiments shown, other construction / design It should be noted that although it is not explicitly stated that features of a specific design can be combined with the features of another design, this should be considered obvious where possible.
    权利要求:
    Claims (15)
    [1]
    Chain clamping arrangement for a column pipe which is arranged to house a submersible pump, characterized in that the chain clamping arrangement (2) comprises: - a transverse beam (13) extending in radial direction, - a spring arrangement (16) connected to the transverse beam (13) comprising at least a spring element (17), and - an arm (18) movably connected to the cross beam (13) and comprising an engaging element (19) arranged to selectably engage a chain (18) connected to said pump, between a lower position and an upper position, the arm being displaceable in the axial direction (17) being in the direction from the lower one, said at least one spring element (18) being positioned towards the upper position. arranged to displace the arm
    [2]
    Chain clamping arrangement according to claim 1, characterized in that the same also comprises means for limiting in said adjustable degree the displacement of the at least one spring element (17) of the arm (18).
    [3]
    Chain clamping arrangement according to claim 1 or 2, (18) extending plane between an active position and an inactive one, characterized in that the arm is pivotable in a radial position.
    [4]
    Chain clamping arrangement according to one of Claims 1 to 3, characterized in that the arm (18) has a radial main extension.
    [5]
    Chain clamping arrangement according to one of the one characterized by the said spring element comprising at least one (17) spring element is constituted by a helical spring. 27
    [6]
    Chain tensioning arrangement according to one of the preceding (18) (17). walking requirements, characterized in that the arm is directly or indirectly connected to the spring element
    [7]
    Chain clamping arrangement according to claim 2, characterized in that the means for adjustably limiting said (17) at least one spring element displacement of the arm (18) consists of a screw (23).
    [8]
    Chain clamping arrangement according to claim 2, characterized in that the means for adjustably limiting said (17) (18) is that said displacement of at least one spring element at least one spring element of the lower end position of the arm (17) is adjustable in axial direction.
    [9]
    Chain clamping arrangement according to any one of those characterized in that said at least one (17) (18) when the arm is in its upper position. walking requirements, spring elements do not exert any upward force on the arm
    [10]
    10. lO. Chain clamping arrangement according to claim 3, characterized (13) is pivotable. that the crossbeam extends parallel to the plane in which the arm (18)
    [11]
    11. ll. Chain clamping arrangement according to any one of the preceding beams (13) irrespective of its opposite ends, comprises at least (14) the column pipe running claims, characterized by, arranged to be releasably connected to (3) - a pin
    [12]
    Chain clamping arrangement according to one of the preceding claims, characterized in that the cross beam (13) has a horizontal main extent.
    [13]
    Chain tensioning arrangement according to one of the preceding claims, characterized in that the engaging 28 (19) of the arm (18) consists of a seat arranged to receive at least one link of the chain.
    [14]
    Chain clamping arrangement according to one of the preceding claims, characterized in that the chain clamping (2) further comprises an axially extending guide pin (25) arranged to cooperate with said arm (18). (3), one submersible and one in axial joint
    [15]
    A pump station comprising a column pipe (3), connected to the pump (4) (3), that the pump station also comprises a chain tensioning pump (4) arranged in the column pipe extending chain (6) and arranged for transporting the pump in the column pipe characterized by, arrangement (2) comprising: - a radially extending crossbeam (13), - a spring arrangement (16) connected to the crossbeam (13) comprising at least one spring element (17), and - an arm (18) movably connected to the crossbeam (13) and comprising an engaging element (19) arranged to optionally engage said chain (6), (18) between a lower position and an upper position, the arm being displaceable in the axial direction (17) is in the direction from the lower one wherein said at least one spring element (18) positions towards the upper position. arranged to displace the arm
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    同族专利:
    公开号 | 公开日
    TW201619540A|2016-06-01|
    US20180229984A1|2018-08-16|
    WO2016051327A1|2016-04-07|
    ES2740523T3|2020-02-05|
    CN107076156A|2017-08-18|
    CA2962676A1|2016-04-07|
    EP3201470B1|2019-05-08|
    DK3201470T3|2019-07-29|
    PL3201470T3|2019-11-29|
    AU2015326434A1|2017-05-18|
    CN107076156B|2019-04-12|
    AU2015326434B2|2018-11-08|
    SE539561C2|2017-10-10|
    EP3201470A1|2017-08-09|
    US10392237B2|2019-08-27|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1451168A|SE538521C2|2014-10-02|2014-10-02|Chain tensioning arrangement and pump station|
    SE1550380A|SE539561C2|2014-10-02|2015-03-31|Chain tensioning arrangement and pump station|SE1550380A| SE539561C2|2014-10-02|2015-03-31|Chain tensioning arrangement and pump station|
    TW104130439A| TW201619540A|2014-10-02|2015-09-15|Chain tensioning arrangement as well as pump station|
    CN201580053532.4A| CN107076156B|2014-10-02|2015-09-28|Chain is tensioned arragement construction and pumping plant|
    EP15778752.4A| EP3201470B1|2014-10-02|2015-09-28|Chain tensioning arrangement as well as pump station|
    AU2015326434A| AU2015326434B2|2014-10-02|2015-09-28|Chain tensioning arrangement as well as pump station|
    DK15778752.4T| DK3201470T3|2014-10-02|2015-09-28|Chain tensioning device and pumping station|
    ES15778752T| ES2740523T3|2014-10-02|2015-09-28|Chain tension and pumping station arrangement|
    PL15778752T| PL3201470T3|2014-10-02|2015-09-28|Chain tensioning arrangement as well as pump station|
    PCT/IB2015/057421| WO2016051327A1|2014-10-02|2015-09-28|Chain tensioning arrangement as well as pump station|
    CA2962676A| CA2962676A1|2014-10-02|2015-09-28|Chain tensioning arrangement as well as pump station|
    US15/516,242| US10392237B2|2014-10-02|2015-09-28|Chain tensioning arrangement as well as pump station|
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