• 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:

    公开号:SE1250976A1
    申请号:SE1250976
    申请日:2012-08-31
    公开日:2014-03-01
    发明作者:Mats Persson
    申请人:Boafallsbacke Ab；
    IPC主号:
    专利说明:

    15 20 25 30 2 Consequently, there is a need for a more functionally reliable device for flow control.
    A disadvantage of such devices of the prior art is that they are difficult to assemble correctly.
    Another problem with such devices of the prior art is that a considerable amount of sediment, gravel, sludge and debris can accumulate in the well.
    This in turn can lead to reduced function of the well or increased demands on its maintenance. Thus, there is a need for a more cost-effective device for flow control of the type intended here.
    SUMMARY OF THE INVENTION An object of the invention is to avoid the above-mentioned disadvantages and problems of the prior art. The device according to the invention provides a smoother and safer flow control, in particular at high flow rate out of the inlet pipe, while the construction provides a device which is easy to mount and which results in efficient cleaning of sediment, gravel, sludge and debris from the well.
    The present invention relates to a device for flow control of liquid, comprising a well with an inlet pipe and an outlet opening formed with at least one inlet opening and a longitudinal axis, a shielding device for at least partial shielding of the inlet opening and a pipe device, the inlet pipe or shielding device is operatively connected to the float body for regulating shielding of the inlet opening by means of the shielding device, characterized in that the inlet opening is arranged at an angle to the outlet opening of the well to prevent the inlet from being substantially well outlet opening. Because the inlet opening is arranged at an angle to the outlet opening, the flow of liquid into the well is controlled and results in the liquid collecting in the well before it is led out through the outlet opening. In this way, a smoother flow and safer flow regulation are achieved. Because the inlet opening is arranged at an angle to the outlet opening, the inlet opening can be arranged in a plane, which entails easier mounting of the device, since the shielding device cooperating with the inlet opening can be designed with a flat portion for abutment against the inlet opening. The fact that the inlet opening is arranged at an angle to the outlet opening further results in a liquid flow in the well which can remove debris, gravel, sludge and sediment therein, the device being self-cleaning.
    The device can thus automatically control the flow in, for example, emergency lines so that the risk of overloads is minimized. The flow can be controlled by the dimensions of the outlet opening and can provide precise and even flows in natural fall lines regardless of the dam level upstream. The inlet pipe can be designed with a first inlet opening arranged at an angle to the outlet opening of the well and a second inlet opening arranged at an angle to the outlet opening of the well. For example, the inlet pipe can be designed as a T-shaped pipe with two opposite inlet openings, wherein the inlet openings can be arranged at a right angle to the outlet opening. In this way, the inlet openings can be continuously in a plane arranged for each inlet opening, which results in simplified shielding thereof. The shielding device can then be provided with a first shielding portion for shielding the first inlet opening and a second shielding portion for shielding the second inlet opening. Because the device is designed with two inlet openings, an even smoother flow in the well can be achieved and a more efficient removal of debris and sediment therein. At the same time, a surface of the inlet pipe, such as a jacket surface, or a pipe part thereof, can be arranged in the direction of the outlet opening in order to effectively prevent a flow of liquid flowing through the inlet pipe and at high speed directly into the outlet opening without first collecting in the well. The inlet pipe can be movably arranged in the well, such as about a pivot axis, the inlet pipe being rotatable about the pivot axis by means of the floating body when a liquid level in the well rises. The pivot axis can extend in a direction transverse to the longitudinal axis of the inlet pipe, so that the part of the inlet pipe provided with the inlet openings is rotatably arranged between a first position, where the inlet openings are released from the shielding second portions, and a second position there, the inlet openings are covered by the shielding portions. The inlet openings can, for example, extend in their respective vertical planes regardless of the position of the inlet pipe. Alternatively, the shielding device may be movably arranged relative to the inlet pipe for regulating the shielding of the inlet openings.
    The well may be provided with a replaceable element with an outlet opening of any size. In this way, a fl capacity of the well can be set in a simple way.
    The invention also relates to a method for flow control of liquid, comprising the steps of a) leading liquid to an inlet pipe in a well made with a longitudinal axis, b) leading the liquid to the well through the inlet pipe and through an arrangement arranged at an angle to an outlet opening of the well inlet opening of the inlet pipe, c) discharging liquid from the well through the outlet opening, d) by means of a floating body, when a liquid inflow to the well exceeds a liquid outflow from the well, causing a shielding device to at least partially shield the inlet to the inlet the well, and e) when a liquid inflow to the well is below a liquid outflow from the well, by gravity releasing the inlet opening from the shielding device.
    Further features and advantages of the present invention will become apparent from the description of exemplary embodiments below, the accompanying figures and the dependent claims.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with the aid of exemplary embodiments with reference to the accompanying drawings, in which Fig. 1 is a schematic perspective view obliquely from above of a device flow control according to an embodiment of the present invention. Fig. 2 is a schematic perspective view of a part of a device for flow control of liquid according to an embodiment of the present invention, wherein a part of the well is shown, showing an well, an inlet pipe, a floating body and a shielding device of the device. has been removed to more clearly show the inlet pipe, floating body and shielding device arranged therein, Fig. 3 is a schematic sectional view from the side of the device shown in Fig. 1, the inlet pipe being in a first position where inlet openings of the inlet pipe and the release pipe are released. liquid can flow freely to the well, Fig. 4 is a schematic view according to Fig. 3, the inlet pipe being in a flour lan position where inlet openings of the pipe by means of the shielding device are partially shielded to limit the liquid flow to the well, Fig. 5 is a schematic view according to Figs. 3 and 4, the inlet pipe being in a second position where inlet openings of the pipe by means of the shield the arrangement is completely shielded to stop the flow of liquid to the well, and Fig. 6 is a schematic cross-sectional view from above of the device shown in Fig. 1, showing any liquid flow through the inlet pipe and into the well.
    THE INVENTION With reference to Fig. 1 and Fig. 2, a device 10 for flow control of liquid according to an embodiment of the invention is schematically illustrated.
    For example, the device 10 is designed for installation in or as part of a pipe network, such as a sewer network or the like. The device 10 is designed, for example, to provide a smoother flow to pipes, watercourses or installations arranged after the device 10 10 15 20 25 30 6, such as reservoirs, treatment plants or the like, in order to prevent overloading thereof.
    The device 10 comprises a well 11 with an inlet pipe 12 and an outlet opening 13. The well 11 is of any type. In the embodiment shown, the well 11 is cylindrical and arranged upright. Alternatively, the well 11 is arranged horizontally. The well 11 is, for example, formed of concrete, plastic material or other suitable material. The inlet pipe 12 is arranged in the well 11 and is provided with an inlet opening 14 arranged in the well 11 for supplying liquid to the well 11. The inlet pipe 12 extends from a wall 15 or side surface of the well 11, into the well 11 and terminates with the inlet opening 14, so that the inlet opening 14 is arranged at a distance from the wall 15 of the well 11. In the embodiment shown, the inlet pipe 12 extends substantially across the well 11 and along a bottom 16 of the well 11 to form a gap between a free end of the inlet pipe 12 and the outlet opening 13. The inlet pipe 12 is elongate and a longitudinal axis A of the inlet pipe 12 extends in the shown embodiment towards the outlet opening 13. Alternatively, the inlet pipe 12 extends towards the wall 15 and a position of the wall 15 which lacks the outlet opening 13. The inlet pipe 12 is connected to a hole 17 in the wall 15 of the well 11. For example, the inlet pipe 12 is connected via the hole 17 in the wall 15 of the well 11 to ll a line in a line network or the like in a conventional manner, which is not shown in the figures. In the embodiment shown in Fig. 2, the inlet pipe 12 is connected to the wall 15 of the well 11 via a flexible sleeve 18. Alternatively, the inlet pipe 12 is fixedly connected to the wall 15. For example, the inlet pipe 12 extends substantially horizontally, the inlet opening 14 extending into the inlet opening 14. in the vertical direction. The inlet pipe 12 is, for example, made with a diameter of 10-2000 mm, 25-100 mm or 50-500 mm. The device is designed, for example, for flows from 0.1 l / s, from 0.5 l / s or from 1 l / s. For example, the device is designed for flows of up to 1000 l / s or up to 500 l / s.
    The device 10 further comprises a shielding device 19 for completely or partially shielding the inlet opening 12 when the liquid in the well 11 rises above a predetermined level, which is described in more detail below. In the embodiment shown, the shielding device 19 is fixedly connected to the well 11, such as to the wall 15 of the well 11. For example, the shielding device 19 is connected to the wall of the well 11 at the inlet heel 17 and at the connection of the inlet pipe 12 to the wall 15. In an alternative embodiment, which is not shown in the figures, the shielding device 19 is movably arranged in the well 11.
    The device 10 comprises a movably arranged floating body 20. The floating body 20 is connected to the inlet pipe 12 or the screening device 19 for regulating shielding of the inlet opening 14 by means of the screening device 19. In the embodiment shown the floating body 20 is connected to the inlet pipe, the inlet pipe 12 or a part thereof with the inlet opening 14 is movably arranged, so that the floating body 20 can cause the inlet pipe 12 to co-operate with the screening device 19. Alternatively, the floating body 20 is connected to the screening device 19, wherein the screening device 19 is movably arranged so that the shielding device 19 to cooperate with the inlet pipe 12.
    According to an embodiment of the invention, the device 10 comprises a replaceable element 21 with an outlet opening 13 of any size for setting a flow capacity of the well 11. For example, the element 21 is a plate provided with the outlet opening 13 of suitable material, such as rubber, plastic, metal or similar. The element 21 is, for example, releasably connectable to the wall 15 in the well 11, so that the element 21 is replaceable as required or desired. According to one embodiment, the element 21 is sealable, the element 21 being replaceable only by authorized persons. For example, the outlet opening 13 is made with a diameter of 10-2000 mm, 25-1000 mm or 50-500 mm.
    The device 10 is designed to prevent the liquid or a substantial part thereof from passing directly from the inlet opening 14 to the outlet opening 13 of the well 11. For example, the device 10 is designed to control the flow of liquid around the well 11 before the outlet opening 14 is arranged when the outlet opening 13 at an angle to the outlet opening 13 to prevent the liquid or a substantial part thereof from passing directly from the inlet opening 14 to the outlet opening 13. In the embodiment shown, a pipe part 22 of the inlet pipe 12 provided with the inlet opening 14 is arranged at an angle to the outlet opening 13, so that liquid flowing from the inlet opening 14 and into the well 11 is directed towards a position arranged at a distance from the outlet opening 13 of the well 15 wall 15. For example, the pipe part 22 is arranged perpendicular to the longitudinal axis A of the inlet pipe , the inlet opening 14 being arranged perpendicular to the outlet opening 13 and an outer surface, such as a jacket surface, of pipes the part 22 is arranged in the direction of the outlet opening 13.
    In the embodiment shown, the inlet pipe 12 is formed with a first inlet opening 14a and a second inlet opening 14b. The first inlet opening 14a is arranged at an angle to the outlet opening 13. The second inlet opening 14b is arranged at an angle to the first inlet opening 14a and at an angle to the outlet opening 13. In the embodiment shown, the inlet pipe 12 is formed as a T-pipe 22, the pipe part 22 is arranged perpendicular to the longitudinal axis A of the inlet pipe 12. Thus, the inlet openings 14a, 14b are arranged opposite each other, a jacket surface of the pipe part 22 being arranged in the direction of the outlet opening 13. The inlet openings 14a, 14b extend in a plane, such as a vertical plane.
    As can be seen from Fig. 2, the shielding device 19 is provided with a first shielding portion 23 designed for shielding the first inlet opening 14a and a second shielding portion 24 for shielding the second inlet opening 14b. The shielding portions 23, 24 are the front portions 23, 24 connected, to the wall 15 of the well 11 via an arm 25.
    In the embodiment shown, the arm 25 extends along the inlet pipe 12 and is for instance arranged horizontally. The shielding portions 23, 24 are arranged at an angle to the arm 25, such as a right angle, so that the shielding portions 23, 24 extend in the same direction as the inlet openings 14a, 14b or in a vertical plane at the inlet openings 14a, 14b. The first shielding portion 23 is arranged at a distance from the second shielding portion 24 to form a space therebetween for receiving the part of the inlet pipe 12 provided with the inlet openings 14a, 14b, such as the pipe part 22, during simultaneous shielding or closing of the inlet openings 14a, 14b. For example, the shielding device 19 is made of sheet metal or the like, the shielding portions 23, 24 being flat, flat and having a surface which is larger than one surface of the inlet openings 14a, 14b.
    Figs. 3-5 are a series of figures showing shielding of the inlet openings 14a, 14b by means of the shielding device 19 when a liquid level in the well 11 rises. The liquid level in the well 11 is shown in Figs. 3-5 by means of the line B. In Fig. 3 the inlet pipe 12 is shown in a first position where the inlet openings 14a, 14b are detached from the shielding portions 23, 24 of the shielding device 19. flow in through the hole 17 in the well 11, through the inlet pipe 12 and out through the inlet openings 14a, 14b to the well 11 without being obstructed by the shielding portions 23, 24 and then flow out through the outlet opening 13.
    In the embodiment shown in Fig. 3, the inlet pipe 12 and the shielding device 19 are connected to a connector 26, such as a mounting plate, for connection to the wall 15 of the well 11. The connector 26 is designed for quick and easy installation of the inlet pipe 12 and shield the device 19 in the well 11. The shielding device 19 is fixedly connected to the connector 26, the arm 25 projecting from the connector 26 and extending above the inlet pipe 12, the shielding portions 23, 24 extending downwards from the arm 25 and being arranged above the inlet openings 14a, 14b.
    In the embodiment shown, the hole 17 in the wall 15 of the well 11, a substantial part of the inlet pipe 12 and the outlet opening 13 are arranged along the longitudinal axis A of the inlet pipe 12 when the inlet pipe 12 is in the first position. the inlet pipe 12 is movably arranged about a pivot axis C. For example, the inlet pipe 12 is connected to the well 11, such as the well wall 15, via the pivot shaft C. In the embodiment shown, the inlet pipe 12 is connected to the connector 26 via the pivot shaft C. For example, pivot shaft C formed by a conventional joint or by the inherent flexibility of the flexible sleeve 18. The pivot shaft C is arranged at one end of the inlet pipe 12 at the wall 15 in the well 11, i.e. at one end opposite to the end of the inlet pipe 12 provided with the inlet openings 14a, 14b Thus, at least the part of the inlet pipe 14a, 14b provided with the inlet openings 14a, 14b is movably arranged about the pivot axis C. The pivot axis C extends in a horizontal plane, perpendicular to the longitudinal axis A of the inlet pipe 12.
    The floating body 20 is connected to the inlet pipe 12. For example, the floating body 20 encloses a portion of the inlet pipe 12, such as a central portion thereof, the floating body 20 being formed with a recess for receiving the inlet pipe 12. The floating body 20 is made with a density which is less than water to be able to float in the liquid well 11 is intended for and to be able to lift the free end of the inlet pipe 12. For example, the floating body 20 is made of foam plastic or in another suitable way, such as an air-filled container or the like.
    Referring to Fig. 4, an elevated liquid level B is shown in the well 11, the elevated liquid level B forcing the floating body 20 while bringing the inlet tube 12 about the pivot axis C to an intermediate position where the shielding portions 23, 24 of the shielding device 19 partially shield the inlet , 14b. the inlet pipe 12 still communicates with the hole 17 in the well 11, liquid flowing in through the hole 17, through the inlet pipe 12 and into the well 11 through the inlet openings 14a, 14b. As a result of the shielding device 19 partially shielding the inlet openings 14a, 14b, the flow into the well 11 can be reduced relative to when the inlet pipe 12 is in its first position, as shown in Fig. 3. Thus, in Fig. 4, the inlet pipe 12, or the part thereof provided with the inlet openings 14a, 14b, is turned upwards about the pivot axis C, so that the longitudinal axis A of the inlet pipe 12 is turned upwards in a vertical plane and so that the inlet openings 14a, 14b have assumed a higher position in the well 11 relative until the inlet pipe 12 is in the first position. For example, the inlet openings 14a, 14b have been displaced upwards in their vertical planes. At the same time, the end of the inlet pipe 12, or the pipe part 22 provided with the inlet openings 14a, 14b, is partly accommodated in the space arranged between the shielding portions 23, 24, so that the shielding portions 23, 24 partially enclose the end provided with the inlet openings 14a, 14b and partially overlaps and covers the inlet openings 14a, 14b. Referring to Fig. 5, a further elevated liquid level B is shown in the well 11, the elevated liquid level B forcing the floating body 20 further while bringing the inlet pipe 12 about the pivot axis C to a second position where the shielding portions 23 of the shielding device 19 24 completely overlaps and covers the inlet openings 14a, 14b to stop the flow of liquid therethrough. Thus, the inlet openings 14a, 14b have been displaced further upwards in their respective vertical planes. The inlet pipe 12 still communicates with the hole 17 in the well 11, liquid flowing in through the hole 17 and through the inlet pipe 12 but is prevented by the shielding device 19 from entering the well 11 through the inlet openings 14a, 14b. As a result of the shielding device 19 completely shielding the inlet openings 14a, 14b, the flow into the well 11 can be stopped until the liquid level B in the well 11 drops to a lower level. In Fig. 5, the end of the inlet pipe 12, or the pipe part 22 provided with the inlet openings 14a, 14b, is accommodated completely in the space arranged between the shielding portions 23, 24, so that the shielding portions 23, 24 completely cover the inlet openings 14a, 14b. When the liquid level B in the well 11 drops as a result of the liquid flow out through the outlet opening 13, this results in the inlet pipe 12 falling by gravity. Thus, the inlet pipe 12 decreases as the liquid level B decreases, whereby the liquid flow is regulated in a safe and advantageous manner.
    The device 10 is designed, for example, to control a size of the inlet openings 14a, 14b by means of the liquid level in the well 11. When a maximum flow through the well 11 has been reached, the flow into the well 11 is gradually restricted, so that a maximum level in the well 11 is kept constant and the flow out of the well 11 becomes as it is dimensioned for independently of a dam or liquid level upstream from the device 10.
    Referring to Fig. 6, the device 10, seen from above, is schematically shown. Fig. 6 also shows an imaginary liquid flow through the device 10 according to an embodiment. Incoming liquid fl passes through the hole 17 in the wall 15 of the well 11, into the inlet pipe 12 and through a substantial part thereof in a direction corresponding to the longitudinal axis A of the inlet pipe 12, as shown by means of the arrow D. The inlet openings 14a, 14b are arranged in a angle oi towards the outlet opening 13 or an extension of the longitudinal axis A of the inlet pipe 12 12. The angle oi extends, for example, in a horizontal plane. The angle oi is, for example, greater than 30 degrees, suitably greater than 60 degrees and, for example, 90 degrees or greater. In that the inlet openings 14a, 14b are arranged at an angle d to the outlet opening 13, such as at right angles, the liquid flow is then directed out of the inlet pipe 12 in a direction corresponding to the angle d, as across the direction of the longitudinal axis A, as shown by of the arrows E in Fig. 6. Thus, the liquid fl is discharged from the respective side of the inlet pipe 12 to form a first flow and a second flow. Thereafter, at least a substantial portion of the first and second flows are forced along the wall 15 of the well 11, the first flow being directed along a portion of the wall 15 of the well 11 and the second flow being directed along the opposite part of the wall 11 of the well 11, as shown by the arrows. F in Fig. 6. The first and second flows are present, for example in a central portion of the well or in a portion of the well 11 at the inlet pipe connection 12 to the wall 15, and are led substantially along the longitudinal axis A of the inlet pipe 12 and out through the outlet opening 13, as shown by means of the arrows G in Fig. 6. Thus, the device 10 is designed to provide a flow around the well 11, such as two opposing partially circular flows, resulting in a uniform flow out of the well 11 during simultaneous removal of debris, gravel, sludge and sediment present in well 11.
    A part of the flow, such as a smaller part, may deviate in the direction of the outlet opening 13 as it leaves the inlet openings 14a, 14b, which is not shown in Figs.
    The device 10 is, for example, designed without a level difference on the inlet hole 17 in the well 11 and the outlet opening 13 and lacks, for example, sand traps, which makes it suitable for regulating both day and waste water flows. Thus, for example, the inlet hole 17 and the outlet opening 13 are arranged at the same level, such as along the longitudinal axis A of the inlet pipe 12 when the inlet pipe 12 is in the first position. Alternatively, the outlet opening 13 is arranged at a level below the inlet hole 17 or slightly higher than the inlet hole 17.
    The invention has been described by way of exemplary embodiment. It is clear to a person skilled in the art that features of the invention can be changed within the scope of the appended claims. For example, the shielding device may be provided with a pivot shaft at a distance from the wall 15, such as in a central portion 13 of the arm 25, whereby the shielding portions by means of the floating body 20 may be forced downwards about the pivot axis to shield the inlet openings 14a, 14b. According to a further alternative embodiment of the invention, the outlet opening 13 of the well 11 is arranged at an angle to the hole 17 in the wall of the well or at an angle to the longitudinal axis A of the inlet pipe 12, an angle of the inlet openings 14a, 14b relative to the outlet opening 13 being adapted to to reach the desired fate through the well 11. According to a further alternative embodiment, the inlet openings 14a, 14b are arranged at any suitable angle relative to the outlet opening, such as at an angle greater than 90 degrees to control the flow from the inlet openings 14a, 14b backwards or obliquely. backwards.
    权利要求:
    Claims (14)
    [1]
    A device (10) for flow control of liquid, comprising a well (11) with an inlet pipe (12) and an outlet opening (13), the inlet pipe (12) being formed with an inlet opening (14) and a longitudinal shaft (A), a shielding device (19) designed for at least partially shielding the inlet opening (14), and a movably arranged floating body (20), the inlet pipe (12) or the shielding device (19) being operatively connected to the surface body (20). for adjusting the shielding of the inlet opening (14) by means of the shielding device (19), characterized in that the inlet opening (14) is arranged at an angle (d) to the outlet opening (13) of the well (11) in order to prevent a substantial part of the liquid passes directly from the inlet opening (14) to the outlet opening (13) of the well (11).
    [2]
    Device according to claim 1, wherein the inlet pipe (12) is formed with a first inlet opening (13) arranged at an angle (d) to the outlet opening (13) of the well (11) and an outlet opening (13) arranged at an angle to the outlet (13) of the well (11). second inlet opening (14b), and wherein the shielding device (19) is provided with a first shielding portion (23) for shielding the first inlet opening (14a) and a second shielding portion (24) for shielding the second inlet opening (14b).
    [3]
    Device according to claim 2, wherein the inlet pipe (12) is formed with a pipe part (22) extending at an angle to the outlet opening (13) and provided with the inlet openings (14a, 14b).
    [4]
    Device according to claim 3, wherein a circumferential surface of the pipe part (22) is arranged in the direction of the outlet opening (13) of the well (11). 10 15 20 25 30 15
    [5]
    Device according to claim 4, wherein the pipe part (22) extends in a direction transverse to the longitudinal axis (A) of the inlet pipe (12) and wherein the inlet openings (14a, 14b) are arranged at opposite ends of the pipe part (22).
    [6]
    Device according to one of the preceding claims, wherein the inlet pipe (12) is connected to the floating body (20) and is arranged movable about an axis of pivot (C).
    [7]
    Device according to claim 6, wherein the pivot axis (C) extends in a direction transverse to the longitudinal axis (A) of the inlet pipe (12) and wherein at least a part of the inlet pipe (12) comprising the inlet opening (14) is rotatably arranged about the pivot axis (C) between a first position, where the inlet opening (14) is released from the shielding device (19), and a second position, where the inlet opening (14) is covered by the shielding device (19).
    [8]
    Device according to any one of the preceding claims, wherein the well (11) is provided with a replaceable element (21) with an outlet opening (13) of any size for setting a flow capacity of the well (11).
    [9]
    A method of flow control of liquid, comprising the steps of a) directing liquid to an inlet pipe (12) formed with a longitudinal axis (A) in a well (11), b) directing the liquid to the well (11) through the inlet pipe (12) and through an inlet opening (14) of the inlet pipe (12) arranged at an angle (d) to an outlet opening (13) of the well (11), c) discharging liquid from the well (11) through the outlet opening (13), d) by means of a surface body (20), when a liquid inflow to the well (11) exceeds a liquid outflow from the well (11), cause a shielding device (19) to at least partially shield the inlet opening (14) in order to limit the liquid inflow to the well (11), and e) when a liquid inflow to the well (11) is less than a liquid fl from the well (11), by gravity releasing the inlet opening (14) from the shielding device (19). 10 15 20 25 30 16
    [10]
    A method according to claim 9, comprising the step of guiding the liquid to the well (11) in step b) through a first inlet opening (14a) arranged at an angle (d) to the outlet opening (13) of the well and one at an angle to the the first inlet opening (14a) and a second inlet opening (14b) arranged at an angle to the outlet opening (13) of the well (11).
    [11]
    The method of claim 10, comprising the step of in step d) causing a first shield portion (23) to at least partially shield the first inlet port (14a) and a second shield portion (24) to at least partially shield the second inlet port (14b). .
    [12]
    A method according to claim 11, comprising the steps of in step d) by means of the floating body (20) causing at least one part of the inlet pipe (14a) provided with the inlet openings (14a, 14b) to rotate about an axis of pivot (C) from a first position, where the inlet openings (14a, 14b) are released from the shielding portions (23, 24), to a second position, where the inlet openings (14a, 14b) are at least partially covered by the shielding portions (23, 24).
    [13]
    A method according to claim 12, comprising the step of guiding in step b) through a pipe part (22) extending transversely to the longitudinal axis (A) of the inlet pipe (12) and further out through the first inlet opening (14a) and the second inlet opening. (14b).
    [14]
    A method according to any one of claims 9-13, comprising the step of releasably connecting to the well (11) an element (21) with an outlet opening (13) of any size for setting a flow capacity of the well (11).
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    同族专利:
    公开号 | 公开日
    US20150218790A1|2015-08-06|
    US9512609B2|2016-12-06|
    SE536643C2|2014-04-22|
    WO2014035315A1|2014-03-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4324506A|1980-08-28|1982-04-13|Steinke Thomas J|Self-regulating fluid control valves|
    US4877352A|1989-02-10|1989-10-31|Waterman Industries, Inc.|Method and apparatus for control of an upstream water level|
    SE469898B|1991-12-05|1993-10-04|Mats Persson|Device for flow control of liquid|CZ2014629A3|2014-09-15|2016-05-04|Výzkumný ústav meliorací a ochrany půdy, v.v.i.|Drainage control element with pulse mode of operation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1250976A|SE536643C2|2012-08-31|2012-08-31|Device and method for flow control of liquid|SE1250976A| SE536643C2|2012-08-31|2012-08-31|Device and method for flow control of liquid|
    US14/423,181| US9512609B2|2012-08-31|2013-08-21|Device and a method for controlling a flow of liquid|
    PCT/SE2013/050981| WO2014035315A1|2012-08-31|2013-08-21|A device and a method for controlling a flow of liquid|
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