• 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:
    A test pressure device (100) for hose (1) comprises a first pair of press rollers (10, 12) between which the hose can be inserted, and a second pair of press rollers (20, 22) between which the hose can be inserted. The first pair of press rollers (10, 12) is arranged at a distance from the second pair of press rollers (20, 22). Furthermore, each pair of press rollers is arranged to compress the hose between the rollers in connection with pressure setting with a medium such as water so that a limited part of the hose, which is between the first and second pair of press rollers, can be kept pressurized and control of the hose and / or its coupling tightness is allowed. In this way, a very space-efficient solution can be achieved as only a limited part of the hose needs to be kept pressurized at a time. (Fig. 1)
    公开号:SE1050003A1
    申请号:SE1050003
    申请日:2010-01-07
    公开日:2011-05-31
    发明作者:Per-Arne Fritjofsson；Anders Ahlen
    申请人:Allgotech Ab；
    IPC主号:
    专利说明:

    equipped with openable doors that allow the operator to access the pressurized hose through the screen, e.g. for marking any holes in the hose so that a later repair can take place. In this known case, the drum is kept still during the pressure release because the other end of the hose is connected to a stationary water supply connection. Thus, the operator must move around the drum at the visual inspection.
    In other known cases, such as in the Swedish patent SE 528 582, the pressurized and wound on the drum is connected to the water pump via a pipe swivel coupling which allows free rotation of the drum while the hose is kept pressurized. In this way, the operator can be in a fixed operator position during the visual inspection, and the protective barrier between the operator and the drum can have a smaller extent in the circumferential direction of the drum.
    According to the Swedish patent SE 528 582, the protective barrier can advantageously be designed as a transportable screen which can be moved away if necessary or placed in an optional position relative to the plant.
    SUMMARY The prevailing convention according to the state of the art is based on the use of a winding drum in connection with test printing of hose as it is considered that this provides the least space-consuming solution.
    ... However, the originator has realized that there are opportunities for even more space-efficient solutions in connection with hose sample pressure.
    According to the invention there is provided a sample pressure device adapted to receive a hose, comprising a first pair of press rollers between which the hose can be inserted, and a second pair of press rollers between which the hose can be inserted, the first pair of press rollers being spaced apart. from the other pair of press rollers.
    Furthermore, each pair of press rollers is arranged to compress the hose between the rollers in connection with pressurization so that a limited part of the hose, which is located between the first and second pair of press rollers, can be kept pressurized and control of the tightness of the hose is allowed. In this way a very space-efficient solution can be achieved as only a limited part of the hose needs to be kept pressurized at a time.
    Preferably, the sample pressing device comprises a mechanism for feeding the hose through the pairs of press rollers to allow different parts of the hose to be successively kept under pressure so that the entire hose can be checked if desired. Alternatively, the hose can be fed manually.
    Additional advantages and features offered by the invention will become apparent upon reading the following description of the embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS The invention, together with further objects and advantages, will be exemplified with reference to the accompanying drawings, in which: Fig. 1 is a schematic diagram showing an example of a hose test printing apparatus according to a first illustrative embodiment.
    Fig. 2A is a schematic diagram showing an example of a sample pressure hose device 25 equipped with a hose feed retrieval device at the inlet to the sample pressure device.
    Fig. 2B is a schematic diagram showing an example of what it might look like when the hose has been passed through the press rollers and connected to a liquid source for test printing. Fig. 3 is a schematic diagram showing an example of a sample pressure device for hose according to a second illustrative embodiment.
    Fig. 4 is a schematic diagram showing an example of a sample pressure device for hose according to a third illustrative embodiment.
    Fig. 5 shows a selected part of an example of a sample printing device arranged in connection with a simple variant of hose washing.
    Fig. 6 shows an example of how additional press rollers and / or so-called level rollers can be used for different purposes in a test printing device according to an embodiment.
    DESCRIPTION OF EXEMPLARY EMBODIMENTS The invention is described by illustrative examples which illustrate the basic principles.
    Fig. 1 is a schematic diagram showing an example of a sample pressure device for hose according to a first illustrative embodiment. The test pressure device itself may optionally be arranged in connection with hose washing, and subsequent drying and / or winding of the hose, as well as possibly other suitable functional units. However, the following description focuses on the proofing device.
    Generally, the sample pressure device 100 is adapted to receive tubing such as e.g. fire hose. The device is normally also adapted to support the hose in both conditions. the test pressure device 100 a first pair of press rollers 10, 12 between which the hose is pressurized and non-pressurized can be substantially inserted, and a second pair of press rollers 20, 22 between which the hose can be inserted, the first pair of press rollers 10, 12 being arranged at a distance from the second pair of press rollers 20, 22. Furthermore, each pair of press rollers is arranged to compress the hose between the rollers in connection with pressurization so that a limited part of the hose, which is located between the first and the second pair of press rollers, can be kept pressurized and control of the tightness of the hose is allowed.
    In this way a very space-efficient solution can be achieved as only a limited part of the hose needs to be kept pressurized at a time.
    Preferably, the sample pressing device comprises a mechanism for feeding the hose through the pairs of press rollers to allow different parts of the hose to be successively kept under pressure so that the entire hose can be checked if desired. For example, one of the pairs of press rollers or both pairs of press rollers can be arranged to also function as drive rollers for feeding the hose. It has been found possible to at least double the speed (meters of hose per unit of time) for checking the hose with this new proofing device compared to conventional proofing systems. This provides a significant gain in working hours.
    Other mechanisms for feeding the hose include e.g. (motorized) pulling of the hose. Alternatively, the hose can be fed manually. "Feed" means a general expression of the hose relative to the test pressure device in general and relative to the pairs of press rollers in particular.
    The test printing device may, if desired, be provided with a mechanism 25 for adjusting the distance between the first pair of press rollers and the second pair of press rollers so as to allow adjustment and / or maintenance of the prescribed test pressure.
    In a preferred illustrative embodiment, the test printing device has protective limiting surfaces arranged to define the space between the first and second pairs of press rollers where the pressurized part of the hose is located during test printing. It is well known that the hose can sway or burst during pressurization. Preferably, the protective confinement surfaces according to an illustrative example form a substantially closed system 30 which offers the operator full protection when the hose is pressurized. In view of the high pressures that are often used in the test printing of e.g. fire hose, this may be a requirement from a user point of view.
    It is possible to use the test printing device according to the invention together with a manual inspection of the hose by the operator. In the case of a standard ocular inspection, one or more of your transparent restriction surfaces are usually used, e.g. some form of reinforced protective glass, which enables such a manual inspection. Preferably, however, automatic detection of damage to the hose is used, and / or marking of the damage, which will be described later with reference to some illustrative examples.
    The test pressure device 100 is normally intended for use together with a liquid pump / water pump 40, or corresponding pressure water source, here schematically illustrated with an associated shut-off valve 42, which can be connected to the hose via a suitable coupling 4. In general, a liquid coupling is used which can be connected to a corresponding coupling 2, 3 at one end of the hose. Preferably, the hose coupling 2, 3 has a built-in vent valve.
    The device for checking the hose can then be included in an overall test pressure system or a combined system for both hose washing and test pressure. The system can in principle be controlled manually by the operator using various mechanical control principles, but usually a computerized control system is used to control various functions such as pressurization, motorized hose supply, and possible automated detection of holes in the hose and / or marking of such holes, and any other optional functions. which can be offered.
    In the example shown in Fig. 1, the hose is preferably washed, but not pressurized before the sample printing device (in the feed direction), pressurized only in the sample printing device, and not pressurized after the sample printing device. After the test printing device, the hose is then preferably washed and test-printed, possibly marked for holes and other damage, and ready for drying and then rolling up.
    The pairs of press rollers 10, 12; 20, 22 can be operated relative to each other so that the hose is allowed to be inserted between the press rollers, as illustrated in Fig. 2A.
    Fig. 2A also shows an example of a movable, and preferably flexible and / or telescopic feeding device 5 for retrieving the hose at the inlet to the washing part or at the inlet to the sample pressure part itself after the hose has been washed. Alternatively, the handling of the hose is handled manually. The actual connection of the hose is normally done manually by the operator with a simple hand grip, but it is also possible to imagine automatic connection if desired.
    The feeding device 5 can preferably move a movable coupling 4 and associated hose, which is connected to a source of suitable medium, for coupling with the hose coupling 2, 3 and then guide the hose between the press rollers so that the press rollers can then compress the hose and hold a medium, such as a liquid or empty a suitable gas, which is filled into the hose.
    This means that the press rollers in a pair of opposite press rollers are movable / adjustable (sideways / heightwise) in relation to each other.
    When filling a medium such as water or possibly gas in the hose, preferably the first pair of press rollers 10, 12 is arranged to compress the hose while the second pair of press rollers 20, 22, which are closest to the end of the hose where the medium is introduced, is arranged to in that position do not compress the hose so that filling and possible testing of the hose connection is allowed. When the filling is completed, the second pair of press rollers 20, 22 is arranged to compress the hose to allow maintenance of the 10 g 30 30 30 30 test sample decoration device if manual marking is to be avoided. pressurizing the limited portion of the hose located between the first and second pairs of press rollers.
    Fig. 2B is a schematic diagram showing an example of what it might look like when the hose has been passed through the press rollers and connected to a liquid source for sample printing.
    When the hose is filled with e.g. water, the air in the hose can escape through the vent valve which lets air and gas through but not water if you arrange the hose with a slope so that air / gas can rise upwards and backwards towards the vent valve. If the test pressure medium is a gas, the vent valve is not used.
    During pressurization, the hose can thus be inspected either manually or mechanically via different types of sensors, which will be described in more detail later.
    When a hole or other damage in the hose is found, the hole can be marked / marked so that subsequent repairs can be made. According to known technology, this is done by the operator via openable doors, but this entails a great risk of serious accidents if the hose should burst under the high pressure.
    According to an exemplary embodiment illustrated in Fig. 3, the test pressing device 100 comprises a mechanism 50 for detecting hose holes and / or other damage to the part of the hose which is currently pressurized. Optionally, a mechanism 60 for marking hose holes and / or other damage to the hose can also be arranged in connection with This can, for example, allow marking with high precision, and / or be part of a fully automated solution for detecting and / or marking holes.
    The detection mechanism 50, which may be located in different ways in connection with the pressurized hose, is arranged for automatic detection of holes and / or other damage based on, for example, visual indications (eg camera), pressure changes (eg 20 25 Detrakan be effective for customers also features Small holes with high Safety pressure sensor) and / or sound changes (eg microphone). You can thus use e.g. a camera unit or equivalent which together with a data processing unit allows visual detection of radiating water / liquid in the event of a leak in the hose (alternatively detection of leaking gas in liquid). Alternatively, one can use a pressure sensor or similar device which senses the pressure change in the hose in the event of a leak or the jet itself which occurs in the event of a leak due to a hole or other damage in the hose. Another variant is thus to use a microphone which, together with the associated data processing unit, picks up and detects the sound that occurs in connection with the water or liquid (or possibly gas if such is used) leaking out.
    Holes can also be detected by measuring motor properties such as current, voltage or torque of the motor or motors driving the rollers. If e.g. water leaks as a result of a hole, you get a change in current, voltage or torque, which can be detected. Such a change can preferably be compensated away by a control mechanism. By registering current, voltage or torque, the position of the hole can also be calculated and marked after a time period of continued feeding of the hose calculated from detecting a change when the speed of the hose is known.
    You can imagine variants where you use thread of e.g. metal that is shaped and arranged appropriately around the hose to sense a leaking jet. A detector can then detect e.g. vibrations that occur in the wire, or if the wire is current-carrying, alternatively a current or voltage change can be detected when the wire is hit by the beam.
    The mechanism 60 for marking can e.g. consists of an ink jet writing unit or is realized by other conventional marking or marking technique.
    Mechanism for marking holes and / or other damage can be operated automatically or manually via the operator. 10 15 20 25 30 10 In the former case, operation of the marking mechanism can take place, for example, by computer control. An appropriate user interface allows the operator control over this control. If a fully automated system for detecting and marking holes is desired, the computer control preferably uses input data from the detection mechanism so that marking can take place in connection with a detected hole.
    In the latter case, the operation preferably takes place in such a way that at least some protective limiting surface always protects the operator during pressurization. In the case of manual marking, for example, a control lever or the like can be provided to enable the operator to control the marking device from the outside.
    According to the exemplary embodiment shown in Fig. 3, the marking mechanism 60 is built into the test printing device inside the protective limiting surfaces. Alternatively, the marking mechanism 60 may be arranged outside the protective confinement surfaces as shown in the embodiment of Fig. 4.
    In the embodiment of Fig. 4, the detection mechanism 50 may e.g. be arranged for detection in connection with the introduction of a new part of hose between the first and second pair of press rollers based on a change in hose pressure. In this case, the marking mechanism 60 may, for example, be arranged for marking the hose after a time period T of continued feeding of hose counted from detecting a change of the hose pressure. The time period T can then be calculated on the basis of the feed speed V and the distance from the first year of the press rollers to the marking mechanism (T = S / V) so that the hose is noticed in the vicinity of the hole and / or the damage.
    Fig. 4 also shows an example of a possible supplementary mechanism 28 which is intended to support the maintenance of the prescribed test pressure. This mechanism preferably comprises a number of pairs of press rollers which are arranged to apply a certain pressure to the hose (normally considerably less pressure than that given by the press rollers 10, 12 and 20, 22 which clamp the hose) to help 15 20 25 ll maintain the required hose pressure. The pressure from the press rollers in the mechanism 28 is not so great that the hose is completely compressed.
    Fig. 5 shows a selected part of an example of a sample printing device arranged in connection with a simple variant of hose washing. In this example, the hose wash has two parts, a first part based on brush washing with brushes 70, 72 on both sides of the fed hose and a second part based on pressure washing (low or high pressure washing) with washing nozzles 80, 82. The test pressure device 100 years arranged after the hose wash, and protective confinement surfaces 32, 34, 36 form a more or less closed system which delimits the pressurized part from the surroundings. Fig. 5 shows only the first pair of press rollers 10, 12, but the person skilled in the art realizes that a second pair of press rollers is also needed to be able to keep a limited part of the hose pressurized. Optionally, a mechanism 50 for detection and / or a mechanism 60 for marking holes may be provided inside the protective walls. As mentioned earlier, the marking mechanism 60 may also be provided outside the protective walls.
    Fig. 6 shows an example of how additional press rollers and / or so-called level rollers can be used for various purposes in a test printing device according to one embodiment. For example, two or more additional pressure rollers 13, 14, 15 may be provided before the pressure rollers 10, 12 in the feed direction to help keep the hose stretched and prevent the hose from "creeping in" into the pressurized portion of the sample pressure device. Preferably, these additional press rollers are driven at substantially the same speed as the press rollers 10, 12. It is also conceivable to use one or two pairs of so-called level rollers 16, 17 and / or 18, 19 which are adapted to be able to register old repairs on the hose as elevations, and then the pressure used by e.g. the press rollers 10, 12 are adapted so that the hose can be passed through these press rollers without problems. This can be adjusted so that the pressing pressure is temporarily reduced slightly in connection with a repair / elevation, without causing any significant leakage of liquid from the pressurized part. The embodiments described above are merely examples and the invention is not limited thereto. Further modifications, changes and improvements based on the basic principles shown herein are within the scope of the invention.
    权利要求:
    Claims (15)
    [1]
    A test pressure device (100) adapted to receive a hose (1), characterized in that the test pressure device (100) comprises: a first pair of press rollers (10, 12) between which the hose (1) can be inserted, and a second pair of press rollers (20, 22) between which the hose (1) can be inserted, the first pair of press rollers (10, 12) being arranged at a distance from the second pair of press rollers (20, 22), and each pair of press rollers being arranged for compressing the hose (1) between the rollers in connection with pressurizing the hose so that a limited part of the hose, which is located between the first and second pair of press rollers, can be kept pressurized and control of the tightness of the hose is allowed.
    [2]
    Test pressure device according to claim 1, characterized in that protective limiting surfaces are arranged to delimit the space between the first and second pair of press rollers where the pressurized part of the hose settles during test pressure.
    [3]
    Sample printing device according to claim 2, characterized in that the protective limiting surfaces form a substantially closed system (30).
    [4]
    Test pressure device according to any one of the preceding claims, characterized in that the test pressure device comprises a mechanism for feeding the hose through the pairs of press rollers in connection with pressurizing the hose to allow different parts of the hose to be successively kept under pressure.
    [5]
    Sample pressure device according to claim 4, characterized in that the mechanism for feeding the hose comprises at least one of the pairs of press rollers (10, 12; 20, 22) which then also function as drive rollers for feeding the hose. 10 15 20 25 14
    [6]
    Sample pressing device according to any one of the preceding claims, characterized in that the first pair of press rollers (10, 12) is arranged to, when filling a medium in the hose, compress the hose while the second pair of press rollers (20, 22), which is closest to the end of the hose where the medium is introduced, is arranged so as not to compress the hose in that position so that filling and possible testing of hose coupling is allowed, the second pair of press rollers (20, 22) being arranged to, when filling, also compress the hose to allow the pressurization of the limited portion of the hose located between the first and second pairs of press rollers to be maintained.
    [7]
    Test pressure device according to any one of the preceding claims, characterized in that the test pressure device comprises a mechanism (25) for adjusting the distance between the first pair of press rollers and the second pair of press rollers so as to allow adjustment and / or maintenance of the prescribed test pressure.
    [8]
    Test pressure device according to one of the preceding claims, characterized in that the test pressure device comprises a mechanism (50) for detecting hose holes and / or other damage to the part of the hose which is currently pressurized.
    [9]
    Sample printing device according to claim 8, characterized by the detection mechanism (50) is arranged for automatic detection of holes and / or other damage based on and / or detection of vibrations, pressure changes, visual indications, sound changes, and / or change of engine properties of the or the drive motors that drive the press rollers.
    [10]
    Test pressure device according to one of the preceding claims, characterized in that the test pressure device comprises a mechanism (60) for marking hose holes and / or other damage to the hose. 10 15 20 25 30 15
    [11]
    Sample pressing device according to claim 10, characterized in that protective limiting surfaces are arranged to delimit the space between the first and second pair of press rollers where the pressurized part of the hose is located during test printing, (60) is arranged inside the and the protection mechanism Protective limiting surfaces.
    [12]
    Sample pressing device according to claim 10, characterized in that protective limiting surfaces are arranged to delimit the space between the first and second pair of press rollers where the pressurized part of the hose is located during test printing, and the marking mechanism (60) is arranged outside the protective limiting surfaces. characterized by that
    [13]
    A test pressure device according to claim 12, according to the test pressure device comprising: a mechanism for feeding the hose through the pairs of press rollers so that different parts of the hose are successively allowed to be kept under pressure, and a mechanism (50) for detecting, in connection with feeding a new part of hose between the first and second pairs of pressure rollers, of hose holes and / or other damage to the hose or its couplings based on change in hose pressure, the marking mechanism (60) located in a given position outside the protective limiting surfaces being arranged for marking the hose after a time period of continued feed of hose from detecting a change in hose pressure, the time period being calculated from the feed rate and distance from the first pair of press rollers and the marking mechanism so that the hose is felt in the vicinity of the hole and / or the damage.
    [14]
    14. l4. Test pressure device according to claim 1, characterized in that the device is adapted for fire hoses.
    [15]
    A system for proofing a hose comprising a proofing device (100) according to any one of the preceding claims.
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    法律状态:
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    申请号 | 申请日 | 专利标题
    SE1050003A|SE534194C2|2010-01-07|2010-01-07|Hose test printing device|SE1050003A| SE534194C2|2010-01-07|2010-01-07|Hose test printing device|
    EP10842341.9A| EP2521903B8|2010-01-07|2010-12-17|Test pressurisation device for hose|
    PL10842341T| PL2521903T3|2010-01-07|2010-12-17|Test pressurisation device for hose|
    PCT/SE2010/051410| WO2011084096A1|2010-01-07|2010-12-17|Test pressurisation device for hose|
    US13/509,095| US8752413B2|2010-01-07|2010-12-17|Test pressurisation device for hose|
    CN201080060781.3A| CN102753950B|2010-01-07|2010-12-17|Test pressurisation device for hose|
    AU2010340403A| AU2010340403B2|2010-01-07|2010-12-17|Test pressurisation device for hose|
    CA2779434A| CA2779434C|2010-01-07|2010-12-17|Test pressurisation device for hose|
    RU2012134323/28A| RU2545504C2|2010-01-07|2010-12-17|Device for creation of test pressure for hose|
    ES10842341T| ES2698830T3|2010-01-07|2010-12-17|Pressurization test device for hose|
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