Pipeline support and hanger online performance testing device, method and early warning system

Abstract

The present invention relates to the technical field of support and hanger testing equipment, and discloses an online performance testing device, method and early warning system for pipeline support and hanger, the testing device comprising: an upper gripper and a lower gripper for clamping a test product; a first hydraulic rod, the first hydraulic rod comprising an inner rod and an outer rod, the outer rod being connected to the lower gripper, and a first accommodation space being formed between the outer rod and the inner rod; a hydraulic press, the hydraulic press drives the outer rod to move closer to or away from the upper gripper by injecting or extracting liquid into the first accommodation space; and a protective component, the protective component being configured to apply a force to the outer rod to move closer to the upper gripper when the test product fails. Through the above technical solution, when the test product fails, the hydraulic press stops working, and the outer rod is still subjected to a force to move away from the upper gripper. At this time, the protective component provides a force to the outer rod to move closer to the upper gripper, thereby achieving buffering during the process of the outer rod moving away from the upper gripper, thereby playing a protective role.

Description

Technical Field

[0001] The present invention relates to the technical field of support and hanger testing equipment, and in particular to an online performance testing device for pipeline support and hanger, and in particular to an online performance testing method and early warning system for pipeline support and hanger. Background Art

[0002] In the design and manufacturing process of pipeline supports and hangers, the performance test of seismic supports is an important link to ensure product quality and safety. In particular, accurate and reliable testing of the connection strength between the nuts, C-shaped steel, locks and hinges in the seismic supports, as well as the tensile strength of the C-shaped steel itself, is crucial to evaluating the seismic performance of the entire pipeline system; comprehensive inspection methods based on support and hanger performance tests on pipelines can not only accurately identify the main causes of abnormal displacement of pipelines and propose targeted repair measures, but also conduct stress analysis on pipelines based on the actual performance of supports and hangers, locate the parts of the pipeline system where stress is more concentrated, and provide inspection work for pipeline metal materials.

[0003] However, in the existing test method, the test mainly relies on the tensile machine, which applies tension to the support and hanger through its clamping device to simulate the stress conditions under actual working conditions. However, this test method has some obvious defects in practical applications:

[0004] First of all, when the tensile testing machine controls the distance between the clamping devices, the lifting part is mainly adjusted by the rotation of the lead screw. The spiral pattern on the lead screw needs to withstand a huge force during the test, especially when a tensile force ranging from 1 ton to 10 tons is applied. This stress condition is particularly prominent, and this high-load working state causes a very high damage rate of the lead screw. Once the lead screw fails, it will not only affect the normal progress of the test, but also the maintenance cost is quite high.

[0005] Moreover, during the testing process, if the tested support and hanger has problems such as insufficient connection strength or material defects, resulting in loosening or disconnection during the test, the screw rod will need to withstand a huge instant impact force. This impact force often far exceeds the normal working load of the screw rod, further increasing the failure rate and maintenance cost of the equipment. Summary of the invention

[0006] The purpose of the present invention is to overcome the problems in the prior art that the testing device is easily damaged and has a short service life, and to provide an online performance testing device, method and early warning system for a pipeline support and hanger. The online performance testing device for a pipeline support and hanger can protect the testing device when the support and hanger becomes loose or broken during the testing process.

[0007] In order to achieve the above-mentioned objectives, a first aspect of the present invention provides an online performance testing device for a pipe support and hanger, comprising: an upper gripper and a lower gripper, the upper gripper and the lower gripper being used to clamp the upper and lower parts of a test product, respectively; a first hydraulic rod, the first hydraulic rod comprising an inner rod and an outer rod slidably connected to the outer peripheral wall of the inner rod, a first accommodating space being formed between the outer rod and the inner rod, and the top of the outer rod being connected to the lower gripper; a hydraulic press, the hydraulic press being configured such that when the hydraulic press injects liquid into the first accommodating space, the outer rod moves close to the upper gripper, and when the hydraulic press extracts the liquid from the first accommodating space, the outer rod moves away from the upper gripper; and a protective component, the protective component being configured to apply a force to the outer rod close to the upper gripper when the test product fails.

[0008] In the online performance testing device for pipe supports and hangers provided by the present invention, the upper gripper and the lower gripper respectively grip the upper and lower parts of the test product, and at the same time, the hydraulic press injects liquid into the first accommodating space to drive the outer rod together with the lower gripper to move away from the upper gripper, thereby generating a downward pulling force on the test product to test the performance of the test product. During the test, when the load applied to the test product by the hydraulic press reaches a specified value, the product does not deform, and the performance of the test product meets the requirements. When the test product fails, for example, the product deforms or even breaks, the hydraulic press stops working, but the force generated when the product breaks still drives the outer rod to move away from the upper gripper. In the present invention, the protective component can provide a force to the outer rod to move closer to the upper gripper when the product breaks, thereby achieving buffering in the process of the outer rod moving away from the upper gripper when the test product fails, thereby playing a protective role.

[0009] In some embodiments, the protection assembly includes a buffer mechanism configured to deliver liquid to the first containing space when the test product fails.

[0010] In some embodiments, an annular groove is formed on the outer wall of the outer rod, a first through hole is provided on the annular groove, the buffer mechanism includes a liquid cylinder for containing liquid, a ring sleeved on the annular groove, and a second pipeline connected to the liquid cylinder and the ring at both ends respectively, the second pipeline is configured to be connected to the first through hole when the test product fails.

[0011] In some embodiments, the pipeline support and hanger online performance testing device provided by the present invention further includes a lifting mechanism transmission-connected to the buffer mechanism, and the lifting mechanism is configured to be able to move synchronously with the outer rod.

[0012] In some embodiments, the lifting mechanism includes a second hydraulic rod transmission-connected to the buffer mechanism and a third pipeline whose two ends are respectively connected to the second hydraulic rod and the hydraulic press.

[0013] In some embodiments, the protection assembly also includes a damping mechanism, which includes a first piston and a second piston connected by a piston rod, the piston rod passes through the first piston, and the second piston is configured to approach the first piston and provide a force for the outer rod to approach the upper gripper when the test product fails.

[0014] In some embodiments, the damping mechanism also includes an intercepting ring arranged in the liquid cylinder, the first piston is arranged on the side of the intercepting ring away from the second pipeline and seals the liquid cylinder, the second piston is arranged on the side of the first piston away from the second pipeline and can seal the liquid cylinder, and the piston rod can pass through the intercepting ring.

[0015] In some embodiments, the upper gripper and the lower gripper are hydraulic grippers, and the pipe support and hanger online performance testing device also includes a first pipeline connected to the hydraulic press, a tee connected to the first pipeline, a fourth pipeline whose two ends are respectively connected to the tee and the upper gripper, and a fifth pipeline whose two ends are respectively connected to the tee and the lower gripper, and the hydraulic press is configured so that when the hydraulic press injects the liquid into the upper gripper and the lower gripper respectively, the upper gripper and the lower gripper respectively clamp the upper and lower parts of the test product, and when the hydraulic press extracts the liquid from the upper gripper and the lower gripper respectively, the upper gripper and the lower gripper respectively release the upper and lower parts of the test product.

[0016] In some embodiments, the inner rod has a second accommodating space, and the second accommodating space is respectively connected to the first accommodating space and the hydraulic press. The pipeline support and hanger online performance testing device also includes a conversion mechanism arranged in the second accommodating space, and the conversion mechanism is configured to control the hydraulic press to be connected to the first pipeline, the first accommodating space and the third pipeline respectively.

[0017] In some embodiments, the conversion mechanism includes a blocking disk disposed on the inner wall of the inner rod and having a second through hole, a driving unit installed above the blocking disk, and a conversion cylinder installed below the blocking disk and drivingly connected to the driving unit, a third through hole is opened on the end surface of the conversion cylinder close to the blocking disk, and a fourth through hole and a fifth through hole are respectively opened on the outer peripheral wall of the conversion cylinder;

[0018] The driving unit is configured to drive the conversion cylinder to rotate, so that the second through hole is connected to the third through hole, the fourth through hole is connected to the first pipeline, and the fifth through hole is connected to the third pipeline.

[0019] In some embodiments, the pipeline support and hanger online performance testing device provided by the present invention also includes a braided sleeve respectively mounted outside the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline.

[0020] In some embodiments, the pipeline support and hanger online performance testing device provided by the present invention also includes a gantry having a top beam and side beams supported and connected below the top beam, and the upper clamp is arranged on the top beam.

[0021] In some embodiments, the pipe support and hanger online performance testing device provided by the present invention further includes a supporting mechanism for supporting the lower gripper, and the supporting mechanism includes a supporting plate with two sides respectively connected to the lower gripper and the outer rod.

[0022] In some embodiments, the support mechanism further includes a slide groove formed on a side of the side beam close to the lower gripper, and both ends of the support plate are slidably connected to the slide groove.

[0023] In some embodiments, the upper gripper and the lower gripper both include an execution module and a clamping jaw disposed in the execution module, grooves are formed on both sides of the clamping jaw close to the execution module, and the upper gripper and the lower gripper also include a clamping rod disposed in the execution module and passing through the groove and penetrating the clamping jaw.

[0024] The second aspect of the present invention provides an online performance test early warning system for pipeline supports and hangers, comprising a workbench, an online performance test device for pipeline supports and hangers according to the aforementioned method arranged on the workbench, and a monitoring module, wherein the monitoring module is used to monitor the load on the test product and the stress changes of the test product.

[0025] In some embodiments, the pipeline support and hanger online performance test early warning system provided by the present invention also includes a buzzer connected to the monitoring module signal, and when the buzzer receives a signal from the monitoring module indicating that the test product is unqualified, it can send a warning signal.

[0026] A third aspect of the present invention provides a method for online performance testing of pipeline supports and hangers, using the aforementioned online performance testing early warning system for pipeline supports and hangers to test the test product, comprising the following steps:

[0027] Using the hydraulic press to inject the liquid into the first accommodation space, so that the outer rod and the lower gripper move closer to the upper gripper;

[0028] When the distance between the upper gripper and the lower gripper reaches a predetermined distance, the upper gripper and the lower gripper are used to grip the upper part and the lower part of the test product respectively;

[0029] Use the hydraulic press to extract the liquid in the first containing space, so that the outer rod generates a pulling force on the test product away from the upper gripper;

[0030] Using the monitoring module to monitor the tension and stress changes of the product;

[0031] When the pulling force reaches a specified value and the test product does not change, the test product is judged to be qualified;

[0032] When the pulling force reaches a specified value, the test product is deformed or broken, and the test product is judged to be unqualified, and the protection component is used to apply a force to the outer rod close to the upper gripper. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the overall structure of the online performance testing device for pipeline supports and hangers provided by the present invention;

[0034] Figure 2 for Figure 1 A rear view structural diagram of ;

[0035] Figure 3 for Figure 1 A schematic diagram of a partial cross-sectional structure in elevation;

[0036] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0037] Figure 5 for Figure 1 A schematic diagram of a partial cross-sectional structure viewed from above;

[0038] Figure 6 for Figure 5 A schematic diagram of the structure enlarged at B in the middle;

[0039] Figure 7 for Figure 3 Schematic diagram of the cross-section structure;

[0040] Figure 8 This is a flow chart of the operation of the early warning system of the present invention.

[0041] Description of Reference Numerals

[0042] 1. Workbench; 11. Gantry; 12. Hydraulic press; 20. First hydraulic rod; 201. Inner rod; 202. Outer rod; 21. First pipeline; 22. Tee; 23. Hydraulic gripper; 24. Groove; 25. Clamping rod; 3. Support mechanism; 31. Slide; 32. Support plate; 4. Buffer mechanism; 41. Mounting frame; 42. Liquid cylinder; 43. Annular groove; 44. Ring; 45. First through hole; 46. Second pipeline; 5. Lifting mechanism; 51. First Two hydraulic rods; 52, third pipeline; 6, damping mechanism; 61, first piston; 62, piston rod; 63, second piston; 64, interception ring; 7, conversion mechanism; 71, blocking disk; 72, second through hole; 73, motor; 74, conversion cylinder; 75, third through hole; 76, fourth through hole; 77, fifth through hole; 90, elastic force sensitive element; 91, metal foil resistance strain gauge; 92, measurement conversion circuit; 93, buzzer; 94, force sensor. DETAILED DESCRIPTION

[0043] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0044] In the present invention, unless otherwise specified, the directions or positional relationships indicated by terms such as "up, down, left, right, inside, outside, top, bottom" etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Aiming at the problem that the existing pipeline support and hanger performance testing device is easily damaged when the test product is broken, thereby shortening the service life of the testing device, the present invention provides a pipeline support and hanger online performance testing device, method and early warning system.

[0049] The first aspect of the present invention provides an online performance testing device for a pipeline support and hanger, referring to Figure 1-Figure 3 and Figure 7 As shown, the online performance testing device for pipeline supports and hangers provided by the present invention includes: an upper gripper and a lower gripper, the upper gripper and the lower gripper are used to clamp the upper and lower parts of the test product respectively; a first hydraulic rod 20, the first hydraulic rod 20 includes an inner rod 201 and an outer rod 202 slidably connected to the outer peripheral wall of the inner rod 201, a first accommodating space is formed between the outer rod 202 and the inner rod 201, and the top of the outer rod 202 is connected to the lower gripper; a hydraulic press 12, the hydraulic press 12 is connected to the first accommodating space, when the hydraulic press 12 injects liquid into the first accommodating space, the outer rod 202 is driven to move close to the upper gripper, and when the hydraulic press 12 extracts liquid from the first accommodating space, the outer rod 202 is driven to move away from the upper gripper; and a protection component, the protection component is configured to apply a force to the outer rod 202 to move close to the upper gripper when the test product is unqualified.

[0050] In the online performance testing device for the pipe support and hanger provided by the present invention, the upper gripper and the lower gripper respectively grip the upper and lower parts of the test product, and at the same time, the hydraulic press 12 injects liquid into the first accommodation space, driving the outer rod 202 together with the lower gripper to move away from the upper gripper, generating a downward pulling force on the test product to test the performance of the test product. Specifically, in combination with Figure 1 and Figure 2 As shown, the hydraulic press 12 injects liquid into the first accommodation space, so that the outer rod 202 moves close to the upper gripper, that is, at this time, the outer rod 202 moves upward relative to the inner rod 201, and drives the lower gripper to move upward, and the distance between the upper gripper and the lower gripper is continuously reduced. When the distance between the lower gripper and the upper gripper reaches a predetermined distance, the hydraulic press 12 stops injecting liquid into the first accommodation space, and controls the upper gripper and the lower gripper to clamp the test product respectively. During the test process, the hydraulic press 12 extracts liquid from the first accommodation space, so that the outer rod 202 generates a downward pulling force on the product to test the performance of the test product. When the test product fails, for example, when deformation or even fracture occurs, the hydraulic press 12 stops working, but the force generated when the product breaks still drives the outer rod 202 to move away from the upper gripper. In the present invention, the protection component can provide a force to the outer rod 202 to approach the upper gripper when the product breaks, so as to achieve buffering during the movement of the outer rod 202 away from the upper gripper when the test product fails, thereby playing a protective role.

[0051] In some embodiments, the protection assembly includes a buffer mechanism 4, and the buffer mechanism 4 is configured to deliver liquid to the first accommodation space when the test product fails. The buffer mechanism 4 delivers liquid to the first accommodation space, and the liquid can apply an upward force to the outer rod 202 after entering the first accommodation space, thereby achieving a buffer for the outer rod 202 to move away from the upper gripper. In some embodiments, the buffer mechanism 4 may include a liquid cylinder and a delivery pipeline, and when the product fails, the liquid cylinder is controlled to deliver liquid to the first accommodation space through the delivery pipeline.

[0052] Or according to an embodiment of the on-line performance testing device for pipeline supports and hangers according to the present invention, Figure 3 and Figure 4 As shown, an annular groove 43 is formed on the outer wall of the outer rod 202, and a first through hole 45 is provided on the annular groove 43. The buffer mechanism 4 includes a liquid cylinder 42 for containing liquid, a collar 44 sleeved on the annular groove 43, and a second pipeline 46 whose two ends are respectively connected to the liquid cylinder 42 and the collar 44. The second pipeline 46 is configured to be connected to the first through hole 45 when the test product is unqualified. After the second pipeline 46 is connected to the first through hole 45, the liquid in the liquid cylinder 42 can be transported to the first accommodation space to apply a force on the outer rod 202 to move away from the inner rod 201.

[0053] In some embodiments, the communication between the second pipeline 46 and the first through hole 45 can be controlled by setting an electric control valve on the second pipeline 46. Figure 3 and Figure 4 As shown, the pipeline support and hanger online performance testing device provided by the present invention also includes a lifting mechanism 5 that is transmission-connected to the buffer mechanism 4, and the lifting mechanism 5 can move synchronously with the outer rod 202. In this way, when the lifting mechanism 5 rises or falls synchronously with the outer rod 202, the buffer mechanism 4 is driven to rise or fall synchronously with the outer rod 202, and then the collar 44 is caused to rise or fall synchronously with the outer rod 202. In this process, the collar 44 keeps blocking the first through hole 45.

[0054] Of course, the lifting mechanism 5 has various structural forms, for example, a motor and a screw rod can be used to achieve synchronous rise or fall of the buffer mechanism 4 and the outer rod 202. In some embodiments, in order to enhance the synergy of synchronous rise or fall of the buffer mechanism 4 and the outer rod, refer to Figure 3 As shown, the lifting mechanism 5 includes a second hydraulic rod 51 that is transmission-connected to the buffer mechanism 4 and a third pipeline 52 whose two ends are respectively connected to the second hydraulic rod 51 and the hydraulic press 12. In this way, when the hydraulic press 12 injects or extracts liquid into the first hydraulic rod 20 to drive the first hydraulic rod 20 to rise or fall, it can also inject or extract liquid into the second hydraulic rod 51 to drive the second hydraulic rod 51 to rise or fall.

[0055] In some embodiments, reference Figure 2 As shown, the buffer mechanism provided by the present invention further includes a mounting frame 41 , and a liquid cylinder 42 is disposed in the mounting frame 41 .

[0056] In some embodiments, the protection assembly further includes a damping mechanism 6, the damping mechanism 6 includes a first piston 61 and a second piston 62 connected by a piston rod 62, the piston rod 62 can pass through the first piston 61, and the second piston 62 is configured to be close to the first piston 61 and provide a force for the outer rod 202 to move away from the inner rod 201 when the tested product fails. According to one embodiment of the present invention, referring to Figure 2 , Figure 3 and Figure 5 As shown, the damping mechanism 6 also includes an intercepting ring 64 arranged in the liquid cylinder 42, the first piston 61 is arranged on the side of the intercepting ring 64 away from the second pipeline 46 and seals the liquid cylinder 42, the second piston 63 is arranged on the side of the first piston 61 away from the second pipeline 46 and can seal the liquid cylinder 42, and the piston rod 62 can pass through the intercepting ring 64.

[0057] So, combined Figure 3As shown, when the test product is unqualified, as the liquid in the liquid cylinder 42 is continuously transported to the first accommodating space, the first piston 61 continuously decreases with the liquid level in the liquid cylinder 42, and the second piston 63 decreases with the first piston 61 through the piston rod 62. When the first piston 61 abuts the interception ring 64, it is blocked and no longer continues to decline. At this time, the second piston 63 seals the liquid cylinder 42, if the force away from the inner rod 201 applied by the buffer mechanism 4 to the outer rod 202 is still not enough to offset the force generated by the fracture of the test product, that is, the outer rod 202 still has residual pressure, and the residual pressure drives the piston rod 62 to pass through the first piston 61 and the interception ring 64 to drive the second piston 63 to continue to move downward, thereby compressing the gas in the sealed space between the first piston 61 and the second piston 62. By compressing the gas in the sealed space, the force away from the inner rod 201 applied by the outer rod 202 can be further applied, thereby further delivering the residual pressure of the outer rod 202.

[0058] Of course, the damping structure may not be arranged in the liquid cylinder. For example, the damping mechanism 6 may include a damping cylinder connected to the first accommodating space, and the first piston 61 and the second piston 63 are respectively sealed in the damping cylinder. By compressing the sealed space between the first piston 61 and the second piston 63, the force applied to the outer rod 202 away from the inner rod 201 can be achieved.

[0059] In addition, an elastic component, such as a spring, may be provided between the first piston 61 and the second piston 63 . When the first piston 61 and the second piston 63 are compressed, the spring may generate an elastic force, further exerting a force on the outer rod 202 away from the inner rod 201 .

[0060] There are many structures for the upper gripper and the lower gripper to clamp the test product. For example, the upper gripper and the lower gripper are respectively provided with adjustment bolts, and the distance between the jaws of the upper gripper and the distance between the jaws of the lower gripper are controlled by rotating the adjustment bolts in different directions to clamp the test product. Or in some embodiments, refer to Figure 1 and Figure 2As shown, the upper gripper and the lower gripper are hydraulic grippers 23, which are driven by the hydraulic press 12 to clamp or release the test product. The online performance testing device for pipeline supports and hangers provided by the present invention also includes a first pipeline 21 connected to the hydraulic press 12, a tee 22 connected to the first pipeline 21, a fourth pipeline connected to the tee 22 and the upper gripper at both ends, and a fifth pipeline connected to the tee 22 and the lower gripper at both ends. Specifically, when the hydraulic press 12 injects liquid into the upper gripper through the first pipeline 21 and the fourth pipeline, the upper gripper clamps the upper part of the test product, and when the hydraulic press 12 extracts liquid from the upper gripper through the first pipeline 21 and the fourth pipeline, the upper gripper releases the test product. The working mode of the hydraulic press 12 controlling the lower gripper to clamp or release the lower part of the test product is similar to the working mode of controlling the upper gripper, which will not be described in detail here. In this way, the upper gripper and the lower gripper share the first pipeline 21 through the tee 22, saving pipeline investment costs, and the hydraulic press 12 simultaneously injects or extracts liquid into or out of the upper gripper and the lower gripper through the first pipeline 21 and the tee 22, ensuring the synchronization of clamping or opening of the upper gripper and the lower gripper.

[0061] In some embodiments, the hydraulic press 12 can directly inject the liquid into the first accommodation space through a delivery pipeline. Alternatively, the inner rod 201 has a second accommodation space, which is connected to the first accommodation space and the hydraulic press 12, respectively. Figure 6 and Figure 7 As shown, the pipeline support and hanger online performance testing device provided by the present invention also includes a conversion mechanism 7 arranged in the second accommodating space, and the conversion mechanism 7 is configured to control the hydraulic press 12 to communicate with the first pipeline 21, the first accommodating space and the third pipeline 52 respectively.

[0062] In some embodiments, in combination Figure 6 and Figure 7 As shown, the conversion mechanism 7 includes a blocking disk 71 disposed on the inner wall of the inner rod 201 and having a second through hole 72, a driving unit installed above the blocking disk 71, and a conversion cylinder 74 installed below the blocking disk 71 and connected to the driving unit in a transmission manner. A third through hole 75 is provided on the end surface of the conversion cylinder 74 close to the blocking disk 71, and a fourth through hole 76 and a fifth through hole 77 are respectively provided on the outer peripheral wall of the conversion cylinder 74. The driving unit is configured to drive the conversion cylinder 74 to rotate, so that the second through hole 72 is connected to the third through hole 75, the fourth through hole 76 is connected to the first pipeline 21, and the fifth through hole 77 is connected to the third pipeline 52. The driving unit can be one of an electric motor 73, a hydraulic motor, a pneumatic motor or a stepping motor.

[0063] Specifically, combined Figure 6As shown, the driving unit can drive the conversion cylinder 74 to rotate so that the third through hole 75 is connected to the second through hole 72, for example, the third through hole 75 is completely overlapped or partially overlapped with the second through hole 72 in the axial direction, and the hydraulic press 12 is connected to the first accommodation space through the overlapping part, so that liquid can be injected or extracted into the first accommodation space to drive the outer rod 202 to rise or fall. Similarly, the driving unit can drive the conversion cylinder 74 to rotate so that the fourth through hole 76 and the port of the first pipeline 21 are completely overlapped, and the hydraulic press 12 is connected to the first pipeline 21, so that liquid can be injected or extracted into the first pipeline 21 to drive the hydraulic gripper 23 to clamp or release the test product. The driving unit can drive the conversion cylinder 74 to rotate so that the fifth through hole 77 and the port of the third pipeline 52 are completely overlapped, and the hydraulic press 12 is connected to the third pipeline 52, so that liquid can be injected or extracted into the third pipeline 52 to drive the second hydraulic rod 51 to rise or fall.

[0064] Therefore, according to the implementation mode of the online performance testing device for pipe supports and hangers of the present invention, by combining the rotation angle of the conversion cylinder 74 and the positional relationship among the second through hole 72, the third through hole 75, the fourth through hole 76 and the fifth through hole 77, the driving unit can control the first hydraulic rod 20, the second hydraulic rod 51 or the hydraulic clamp 23 individually or simultaneously.

[0065] In some embodiments, the online performance testing device for pipeline supports and hangers provided by the present invention also includes braided sleeves respectively arranged outside the first pipeline 21, the second pipeline 46, the third pipeline 52, the fourth pipeline and the fifth pipeline, so as to protect the first pipeline 21, the second pipeline 46, the third pipeline 52, the fourth pipeline and the fifth pipeline.

[0066] In some embodiments, reference Figure 1 and Figure 2 As shown, the online performance testing device for pipeline supports and hangers provided by the present invention also includes a gantry 11 having a top beam and side beams supported and connected below the top beam, and an upper clamp is arranged on the top beam.

[0067] In some embodiments, reference Figure 1-Figure 3 As shown, the pipe support and hanger online performance testing device provided by the present invention also includes a support mechanism 3 for supporting the lower gripper, and the support mechanism 3 includes a support plate 32 connected to the lower gripper and the outer rod 202 on both sides. The support plate 32 provides support for the lower gripper and the outer rod 202 to protect the lower gripper and the outer rod 202.

[0068] Furthermore, if Figure 1 As shown, the support mechanism also includes a slide groove 31 formed on one side of the side beam close to the lower gripper, and both ends of the support plate 32 are slidably connected to the slide groove 31 to improve the stability of the movement of the lower gripper.

[0069] In some embodiments, reference Figure 3 As shown, both the upper gripper and the lower gripper include an execution module and a clamping claw disposed in the execution module, and grooves 24 are formed on both sides of the clamping claw close to the execution module. The upper gripper and the lower gripper also include a clamping rod 25 disposed in the execution module and penetrating the clamping claw through the groove 24. For a test product with a hanging ear structure, the clamping rod 25 can be used to penetrate the hanging ear structure, so that the hanging ear structure is connected to the clamping rod 25, providing stability for clamping the test product, and reducing the pressure on the upper gripper and the lower gripper.

[0070] The testing process of the on-line performance testing device for pipeline supports and hangers of the present invention is described in detail below.

[0071] Place one side of the C-shaped steel on the upper clamp and the other side on one end of the wire rope. The other end of the wire rope is placed on the lower clamp. Then turn on the motor 73 to drive the conversion cylinder 74 to rotate. Under the action of the conversion cylinder 74, the second through hole 72 and the third through hole 75 partially overlap, the fifth through hole 77 is connected to the third pipeline 52, and the first pipeline 21 and the fourth through hole 76 are misaligned. The hydraulic press 12 injects liquid, such as hydraulic oil, into the first hydraulic rod 20 and the second hydraulic rod 51 at the same time, thereby pushing the first hydraulic rod 20 and the second hydraulic rod 51 to extend synchronously. In this process, the first hydraulic rod 20 drives the lower clamp to approach the upper clamp through the support plate 32.

[0072] After adjusting the distance between the lower gripper and the upper gripper to a predetermined distance, the motor 73 continues to drive the conversion cylinder 74 to rotate, driving the first pipeline 21 and the fourth through hole 76 to communicate, while the second through hole 72 and the third through hole 75 are misaligned, and the third pipeline 52 and the fifth through hole 77 are misaligned. At this time, the hydraulic press 12 controls the hydraulic gripper 23 to clamp one side of the C-shaped steel and the other end of the wire rope. Of course, for some test products with hanging ear structures on both sides, after the hydraulic gripper 23 is clamped and fixed, the hanging ear structure can be penetrated by the clamping rod 25 to strengthen the stability of the clamping of the test product and reduce the pressure of the hydraulic gripper 23.

[0073] After completing the clamping of the test product, the motor 73 continues to drive the conversion cylinder 74 to rotate, so that the second through hole 72 and the third through hole 75 are completely overlapped, the first pipeline 21 and the fourth through hole 76 are misaligned, and the third pipeline 52 and the fifth through hole 77 are misaligned. At this time, the hydraulic press 12 extracts the hydraulic oil in the hydraulic rod 20. During this process, the hydraulic rod 20 applies a pulling force to the lower clamp through the support plate 32, thereby testing the test product. If the applied force reaches the specified value and the test product does not change, the product is qualified.

[0074] When the test product fails, that is, the test product breaks during the test, the hydraulic press 12 stops working. After the hydraulic press 12 is powered off, the force generated by the test product breaking still drives the hydraulic rod 20 to be recovered. This part of the force will drive the broken test product and the outer rod 202 to move downward for a distance synchronously. Since the third pipeline 52 is misaligned with the fifth through hole 77, the second hydraulic rod 51 does not move. At this time, the collar 44 also remains stationary. After the outer rod 202 moves down for a distance, the first through hole 45 on the annular groove 43 is connected to the second pipeline 46. At this time, the residual force generated after the hydraulic press 12 is powered off drives the hydraulic oil in the first hydraulic rod 20 to continue to be extracted, and the liquid in the liquid cylinder 42, such as hydraulic oil, enters the first accommodating space through the second pipeline 46. The pressure in the first accommodating space is supplemented by the liquid in the liquid cylinder 42, and exerts a force on the outer rod 202 away from the inner rod 201, preventing the outer rod 202 from recovering too fast to damage the test device, thereby slowing down the descent speed and eliminating part of the pulling force.

[0075] As the liquid in the liquid cylinder 42 is continuously extracted, the first piston 61 follows the drop in the liquid level and is blocked when the first piston 61 reaches the interception ring 64. At this time, the second piston 63 just seals the liquid cylinder 42. If the first hydraulic rod 20 still has some pressure, this partial pressure drives the piston rod 62 to continue to move through the first piston 61, and this process will drive the air between the first piston 61 and the second piston 63 to be continuously compressed. The compression process changes from rapid to slow, and the residual pressure of the corresponding first hydraulic rod 20 will also be weakened until it disappears. That is, the pressure in the downward movement of the outer rod 202 is gradually weakened to zero, which greatly reduces the loss of the test device and extends the service life of the test device.

[0076] The second aspect of the present invention provides an early warning system for online performance testing of pipeline supports and hangers, comprising a workbench 1, an online performance testing device for pipeline supports and hangers according to the above-mentioned method and a monitoring module arranged on the workbench 1, wherein the monitoring module is used to monitor the load on the test product and the stress change of the test product. Specifically, a hydraulic press 12 is installed in the workbench 1, a first hydraulic rod 20 is connected to the hydraulic press 12 and is installed on the top of the workbench 1, a gantry 11 is installed on the top of the workbench 1, the first hydraulic rod 20 is arranged between the side beams of the gantry 11, an upper gripper is installed on the top beam of the gantry 11, and a lower gripper can be connected to the top of the first hydraulic rod 20. In addition, according to an embodiment of the pipeline support and hanger online performance test early warning system of the present invention, the monitoring module includes an elastic force sensitive element 90, a metal foil resistance strain gauge 91, a measurement conversion circuit 92 and a force sensor 94 installed on the upper clamp, thereby realizing online monitoring of the load on the test product and its own stress changes, and the monitoring data is sent to the internal system in the workbench 1. The specific working mode and structure of the monitoring module are well known to those skilled in the art, and do not belong to the core improvement part of the present invention, so they are not repeated here.

[0077] In some embodiments, the pipeline support and hanger online performance test early warning system provided by the present invention also includes a buzzer 93 connected to the electrical signal of the monitoring module. When the test product is deformed or broken, the monitoring module can send a signal to the buzzer 93 that the test product is unqualified. After receiving the signal, the buzzer 93 starts and sends a warning signal to the operator.

[0078] The following is a detailed description of the workflow of the pipeline support and hanger online performance test early warning system of the present invention:

[0079] Combination Figure 8As shown, the panel switch of the workbench 1 starts the online performance test device of the pipeline support and hanger of the present invention, performs performance testing on the test product, and monitors the load and self-stress changes of the test product online through the monitoring module. The monitoring module may include an elastic force sensitive element 90, a metal foil resistance strain gauge 91, a measurement conversion circuit 92 and a force sensor 94 installed on the hydraulic clamp 23 arranged in the workbench 1. The monitoring module sends the monitored signal to the internal system of the workbench 1, and the internal system displays the signal as the performance data of the test product, and can judge whether the test product is qualified according to the change of the performance data. Specifically, when the performance data of the test product suddenly changes significantly, the test product is judged to be unqualified, and the buzzer is started at the same time to send an early warning signal to the operator, and the performance data of the test product is summarized and sent to the internal system. In addition, the internal system of the workbench 1 is connected to a remote client, such as a computer, and the internal system can also send the performance data of the test product to the remote client. When the load on the test product reaches a predetermined value, the performance data of the test product does not change significantly, then the test product is judged to be qualified, and the performance data of the test product is summarized and sent to the internal system.

[0080] A third aspect of the present invention provides a method for online performance testing of pipeline supports and hangers, using the aforementioned online performance testing early warning system for pipeline supports and hangers to test the test product, comprising the following steps:

[0081] Use the hydraulic press 12 to inject liquid into the first accommodation space to move the outer rod 202 and the lower gripper closer to the upper gripper;

[0082] When the distance between the upper gripper and the lower gripper reaches a predetermined distance, the upper gripper and the lower gripper are used to grip the upper and lower parts of the test product respectively;

[0083] Use the hydraulic press 12 to extract the liquid in the first containing space, so that the outer rod 202 exerts a pulling force on the test product away from the upper gripper;

[0084] Use monitoring modules to monitor the tension and stress changes of products;

[0085] When the tension reaches the specified value and the test product does not change, the test product is judged to be qualified;

[0086] When the pulling force reaches a specified value, the test product is deformed or broken, and the test product is judged to be unqualified, and a protective component is used to apply a force to the outer rod 202 close to the upper gripper.

[0087] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any appropriate manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A pipeline support and hanger online performance testing device, characterized in that: include: An upper gripper and a lower gripper, the upper gripper and the lower gripper are used to grip the upper part and the lower part of the test product respectively; a first hydraulic rod (20), the first hydraulic rod (20) comprising an inner rod (201) and an outer rod (202) slidably connected to an outer peripheral wall of the inner rod (201), a first accommodation space being formed between the outer rod (202) and the inner rod (201), and a top of the outer rod (202) being connected to the lower gripper; A hydraulic press (12), wherein the hydraulic press (12) is configured such that when the hydraulic press (12) injects liquid into the first accommodating space, the outer rod (202) moves closer to the upper gripper, and when the hydraulic press (12) extracts the liquid from the first accommodating space, the outer rod (202) moves away from the upper gripper; as well as, a protection component, the protection component being configured to apply a force close to the upper gripper to the outer rod (202) when the tested product fails to meet the standards; The protection component comprises a buffer mechanism (4), and the buffer mechanism (4) is configured to transport liquid to the first containing space when the test product fails; An annular groove (43) is formed on the outer wall of the outer rod (202), and a first through hole (45) is provided on the annular groove (43); the buffer mechanism (4) comprises a liquid cylinder (42) for containing liquid, a sleeve ring (44) sleeved on the annular groove (43), and a second pipeline (46) having two ends respectively connected to the liquid cylinder (42) and the sleeve ring (44); the second pipeline (46) is configured to be connected to the first through hole (45) when the test product fails; The testing device further comprises a lifting mechanism (5) transmission-connected to the buffer mechanism (4), the lifting mechanism (5) being configured to be able to move synchronously with the outer rod (202), the lifting mechanism (5) comprising a second hydraulic rod (51) transmission-connected to the buffer mechanism (4) and a third pipeline (52) having two ends respectively connected to the second hydraulic rod (51) and the hydraulic press (12).

2. The pipeline support and hanger online performance testing device according to claim 1 is characterized in that: The protection assembly further comprises a damping mechanism (6), the damping mechanism (6) comprising a first piston (61) and a second piston (63) connected via a piston rod (62), the piston rod (62) passing through the first piston (61), and the second piston (63) being configured to approach the first piston (61) and provide a force for the outer rod (202) to approach the upper gripper when the test product fails.

3. The on-line performance testing device for pipeline supports and hangers according to claim 2 is characterized in that: The damping mechanism (6) further comprises an intercepting ring (64) arranged in the liquid cylinder (42); the first piston (61) is arranged on a side of the intercepting ring (64) away from the second pipeline (46) and seals the liquid cylinder (42); the second piston (63) is arranged on a side of the first piston (61) away from the second pipeline (46) and is capable of sealing the liquid cylinder (42); and the piston rod (62) is capable of passing through the intercepting ring (64).

4. The on-line performance testing device for pipeline supports and hangers according to claim 3 is characterized in that: The upper gripper and the lower gripper are hydraulic grippers (23), and the pipeline support and hanger online performance testing device further comprises a first pipeline (21) connected to the hydraulic press (12), a tee (22) connected to the first pipeline (21), a fourth pipeline whose two ends are respectively connected to the tee (22) and the upper gripper, and a fifth pipeline whose two ends are respectively connected to the tee (22) and the lower gripper. The hydraulic press (12) is configured such that when the hydraulic press (12) injects the liquid into the upper gripper and the lower gripper respectively, the upper gripper and the lower gripper respectively clamp the upper part and the lower part of the test product, and when the hydraulic press (12) extracts the liquid from the upper gripper and the lower gripper respectively, the upper gripper and the lower gripper respectively release the upper part and the lower part of the test product.

5. The on-line performance testing device for pipeline supports and hangers according to claim 4 is characterized in that: The inner rod (201) has a second accommodating space therein, the second accommodating space being in communication with the first accommodating space and the hydraulic press (12) respectively, the pipeline support and hanger online performance testing device further comprising a conversion mechanism (7) disposed in the second accommodating space, the conversion mechanism (7) being configured to control the hydraulic press (12) to be in communication with the first pipeline (21), the first accommodating space and the third pipeline (52) respectively.

6. The on-line performance testing device for pipeline supports and hangers according to claim 5 is characterized in that: The conversion mechanism (7) comprises a blocking disk (71) arranged on the inner wall of the inner rod (201) and having a second through hole (72), a driving unit installed above the blocking disk (71), and a conversion cylinder (74) installed below the blocking disk (71) and drivingly connected to the driving unit, a third through hole (75) being provided on an end surface of the conversion cylinder (74) close to the blocking disk (71), and a fourth through hole (76) and a fifth through hole (77) being provided on an outer peripheral wall of the conversion cylinder (74); The driving unit is configured to drive the conversion cylinder (74) to rotate, so that the second through hole (72) is connected to the third through hole (75), the fourth through hole (76) is connected to the first pipeline (21), and the fifth through hole (77) is connected to the third pipeline (52).

7. The on-line performance testing device for pipeline supports and hangers according to claim 5, characterized in that: It also includes braided sleeves respectively sleeved outside the first pipeline (21), the second pipeline (46), the third pipeline (52), the fourth pipeline and the fifth pipeline.

8. The on-line performance testing device for pipeline supports and hangers according to claim 1 is characterized in that: It also comprises a gantry (11) having a top beam and a side beam supported and connected below the top beam, wherein the upper gripper is arranged on the top beam.

9. The on-line performance testing device for pipeline supports and hangers according to claim 8, characterized in that: It also includes a support mechanism (3) for supporting the lower gripper, the support mechanism (3) comprising a support plate (32) with two sides respectively connected to the lower gripper and the outer rod (202).

10. The on-line performance testing device for pipeline supports and hangers according to claim 9, characterized in that: The support mechanism (3) further comprises a slide groove (31) formed on a side of the side beam close to the lower gripper, and both ends of the support plate (32) are slidably connected to the slide groove (31).

11. The on-line performance testing device for pipeline supports and hangers according to claim 1, characterized in that: The upper gripper and the lower gripper both comprise an execution module and a clamping jaw disposed in the execution module, grooves (24) being formed on both sides of the clamping jaw close to the execution module, and the upper gripper and the lower gripper also comprise a clamping rod (25) disposed in the execution module and penetrating the clamping jaw through the groove (24).

12. A pipeline support and hanger online performance test early warning system, characterized in that: It comprises a workbench (1), an online performance testing device for a pipeline support and hanger according to any one of claims 1 to 11 arranged on the workbench (1), and a monitoring module, wherein the monitoring module is used to monitor the load on the test product and the stress change of the test product.

13. The pipeline support and hanger online performance test early warning system according to claim 12, characterized in that: It also comprises a buzzer (93) connected to the monitoring module signal, and the buzzer (93) is configured to send out a warning signal when receiving a signal from the monitoring module indicating that the tested product is unqualified.

14. A pipeline support and hanger online performance testing method, characterized in that: Using the pipeline support and hanger online performance test early warning system according to claim 12 or 13 to test the test product comprises the following steps: Using the hydraulic press (12) to inject the liquid into the first accommodation space, so that the outer rod (202) and the lower gripper move closer to the upper gripper; When the distance between the upper gripper and the lower gripper reaches a predetermined distance, the upper gripper and the lower gripper are used to grip the upper part and the lower part of the test product respectively; Using the hydraulic press (12) to extract the liquid in the first containing space, so that the outer rod (202) generates a pulling force on the test product away from the upper gripper; Using the monitoring module to monitor the tension and stress changes of the product; When the pulling force reaches a specified value and the test product does not change, the test product is judged to be qualified; When the pulling force reaches a specified value, the test product is deformed or broken, the test product is judged to be unqualified, and the protection component is used to apply a force close to the upper gripper to the outer rod (202).

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