Off-line testing equipment for pneumatic diaphragm pump

Abstract

The utility model discloses off-line testing equipment for a pneumatic diaphragm pump, which comprises a base which is arranged along the horizontal direction and can support a tested pneumatic diaphragm pump, a feed testing pipe which can be communicated with a feed port of the tested pneumatic diaphragm pump, and a discharge testing pipe which is communicated with a discharge port of the tested pneumatic diaphragm pump, the base is provided with an adapting support arranged in the vertical direction, the top of the adapting support is provided with an adjusting valve and a flow meter which are sequentially communicated with the downstream of the discharging test pipe in the pumping direction, and a pressure gauge is further arranged at the joint of the adjusting valve and the discharging test pipe. The off-line testing equipment for the pneumatic diaphragm pump can perform off-line testing on the pneumatic diaphragm pump so as to independently detect whether the pneumatic diaphragm pump breaks down or not, so that the fault reason of a pumping system of a nuclear power station can be quickly and accurately judged.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting testing equipment for nuclear power plant pumping equipment, in particular to off-line testing equipment for a pneumatic diaphragm pump. Background Art

[0002] In the daily operation of nuclear power plants, it is usually necessary to pump some fluid materials to ensure the transportation or circulation needs of the fluid materials. Among them, the pneumatic diaphragm pump is a pumping equipment that is commonly used in fluid pumping operations in nuclear power plants.

[0003] In the overall operation of a general nuclear power plant, the working performance of the pneumatic diaphragm pump determines the operating effect of the entire pumping system. However, in the actual working process, the pneumatic diaphragm pump sometimes fails to pump out, resulting in the inability to normally transport and circulate the fluid material.

[0004] At present, the industry usually takes the approach of directly replacing the new pump to deal with this situation, in order to put the entire pumping system back into normal operation as soon as possible. However, in actual operation, it is often the case that the pumping output cannot be guaranteed after the new pump is replaced. This will cause the pumping system to be shut down for a long time, causing adverse effects on the operation of related nuclear power plant supporting equipment and the transportation of fluid materials.

[0005] Therefore, when the pneumatic diaphragm pump of a nuclear power plant fails to pump effectively, it is necessary to conduct targeted testing on the pneumatic diaphragm pump in order to promptly determine whether the problem of pumping failure is caused by a failure of the pneumatic diaphragm pump itself or a failure of the pipeline or other supporting equipment in the pumping system. Then, targeted inspection and replacement can be carried out to quickly and accurately eliminate the fault and ensure the timely resumption of work and smooth operation of the relevant systems of the nuclear power plant.

[0006] However, at present, there is no equipment in the industry that can perform independent testing on pneumatic diaphragm pumps. If the pneumatic diaphragm pump fails, and the performance of the pneumatic diaphragm pump is directly tested on the pumping system, it will be impossible to obtain accurate and reliable test results because the pumping system itself cannot operate normally.

[0007] In view of this, how to perform offline testing on pneumatic diaphragm pumps in order to quickly and accurately determine the cause of failure of the nuclear power plant pumping system is an important technical problem that technicians in this field currently need to solve. Utility Model Content

[0008] The utility model aims to provide an off-line testing device for a pneumatic diaphragm pump, which can perform an off-line test on the pneumatic diaphragm pump to individually detect whether the pneumatic diaphragm pump fails, so as to quickly and accurately determine the cause of the failure of the nuclear power plant pumping system.

[0009] In order to solve the above technical problems, the utility model provides an off-line testing device for a pneumatic diaphragm pump, comprising a base arranged in a horizontal direction and capable of supporting a pneumatic diaphragm pump to be tested, and also comprising a feeding test pipe capable of being connected to a feeding port of the pneumatic diaphragm pump to be tested and a discharging test pipe connected to a discharging port of the pneumatic diaphragm pump to be tested;

[0010] The base is provided with an adapter bracket arranged in a vertical direction, and the top of the adapter bracket is provided with a regulating valve and a flow meter which are sequentially connected to the downstream of the discharge test pipe along the pumping direction, and a pressure gauge is also provided at the connection between the regulating valve and the discharge test pipe.

[0011] Preferably, the adapter bracket includes a plurality of support rod assemblies extending in a vertical direction and capable of reciprocating and telescoping in the vertical direction.

[0012] Preferably, the support rod assemblies are arranged in an array along the horizontal direction, so as to enclose a pipe laying cavity capable of accommodating the discharge test pipe between the support rod assemblies.

[0013] Preferably, the adapter bracket further comprises a horizontally arranged positioning support plate, and the top end of each of the support rod assemblies is linked to the bottom end of the positioning support plate;

[0014] The middle part of the positioning support plate is provided with a transfer hole connected between the discharge test pipe and the regulating valve, and the regulating valve, the flow meter and the pressure gauge are all arranged on the positioning support plate.

[0015] Preferably, an upper adapter seat detachably connected to the inlet end of the regulating valve is coaxially arranged at the upper orifice of the adapter hole, and a lower adapter seat detachably connected to the outlet end of the discharge test tube is coaxially arranged at the lower orifice of the adapter hole.

[0016] Preferably, the strut assembly comprises a positioning sleeve arranged in a vertical direction, and a positioning strut capable of axially reciprocating movement is coaxially inserted into the lumen of the positioning sleeve;

[0017] The side wall of the positioning sleeve has a plurality of reference holes evenly distributed along its axial direction, and the side wall of the positioning strut has a plurality of positioning holes evenly distributed along its axial direction. The positioning holes can be coaxially matched with the reference holes in a one-to-one correspondence, and the strut assembly also includes a positioning bolt that can pass through the reference hole and be threadedly connected to the positioning hole.

[0018] Preferably, the base comprises two longitudinal beams arranged in the horizontal direction and parallel to each other, a slide rail extending in the length direction of the longitudinal beam is arranged on the side wall of any longitudinal beam facing the other longitudinal beam, a plurality of horizontal beams extending in the horizontal direction are arranged between the two longitudinal beams, the extension direction of the horizontal beams is perpendicular to the length direction of the longitudinal beams, and the horizontal beams are arranged in sequence along the length direction of the longitudinal beams;

[0019] The two ends of the cross beam are slidably connected to the two slide rails in a one-to-one correspondence.

[0020] Preferably, two sides of the bottom of the adapter bracket are slidably connected to the two slide rails respectively.

[0021] Preferably, the longitudinal beam and the transverse beam are both square steel parts.

[0022] Preferably, a walking device is provided at the bottom of the base.

[0023] Compared with the above-mentioned background technology, the pneumatic diaphragm pump offline testing equipment provided by the utility model, during its operation and use, when the pneumatic diaphragm pump in the pumping system of the nuclear power plant fails to pump or has other problems and it is suspected that the pneumatic diaphragm pump has failed, the pneumatic diaphragm pump in the pumping system can be removed and used as the pneumatic diaphragm pump to be tested, and the pneumatic diaphragm pump to be tested is then securely placed on the base, and then the discharge test pipe is connected correspondingly between the pneumatic diaphragm pump to be tested and the regulating valve, and the feed test pipe is connected between the pneumatic diaphragm pump to be tested and the external test feed equipment. After ensuring that all pipes and equipment are connected in place, the pneumatic diaphragm pump to be tested can be started for offline testing. During the test, the regulating valve is kept open, and the fluid material sent from the feeding equipment for external testing is passed into the pneumatic diaphragm pump being tested through the feeding test tube. After the fluid material is discharged by the pneumatic diaphragm pump being tested, it flows through the discharge test tube, the regulating valve and the flow meter in sequence, and then the fluid material is discharged to the external material collection device; during this period, the operating status of the pneumatic diaphragm pump being tested can be understood by monitoring the real-time detection data of the pressure gauge and the flow meter, so as to determine whether the pneumatic diaphragm pump being tested can operate normally. If the pneumatic diaphragm pump being tested cannot operate normally through the test data feedback analysis, it can be determined that there is a fault in the pneumatic diaphragm pump being tested, and the pneumatic diaphragm pump being tested needs to be repaired or replaced to ensure the normal operation of the nuclear power plant pumping system; if the pneumatic diaphragm pump being tested can operate normally through the test data feedback analysis, it can be determined that the pneumatic diaphragm pump being tested is not faulty, and the staff needs to detect and repair other supporting equipment of the pumping system with problems to restore the pumping system to normal operation. The pneumatic diaphragm pump offline testing equipment can perform a separate performance test on the pneumatic diaphragm pump in an offline state to determine whether the pneumatic diaphragm pump being tested is faulty, so that the staff can quickly and accurately determine whether the failure of the pumping system to operate normally is caused by the failure of the pneumatic diaphragm pump, thereby quickly and accurately eliminating the corresponding fault, so that the nuclear power plant pumping system and other related systems and equipment can be restored to work in time, thereby ensuring the smooth operation of the nuclear power plant.

[0024] In another preferred embodiment of the present invention, the adapter bracket includes a plurality of support rod assemblies extending in the vertical direction and capable of reciprocating and retracting in the vertical direction. In actual operation, the effective height of the adapter bracket can be adjusted by controlling the reciprocating and retracting of the support rod assemblies in the vertical direction, and thereby realizing the linkage adjustment of the size of the space below the adapter bracket, so as to match the assembly requirements of pneumatic diaphragm pumps and connection parts such as discharge test tubes of different sizes, meet the testing requirements of pneumatic diaphragm pumps under different working conditions, and ensure that the relevant test data is accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A structural side view of an off-line testing device for a pneumatic diaphragm pump provided by a specific embodiment of the utility model;

[0027] Figure 2 for Figure 1 Axonometric view of the assembly structure of the middle base and adapter bracket.

[0028] in:

[0029] 10-pneumatic diaphragm pump; 101-feeding test tube; 102-discharge test tube;

[0030] 11-base; 111-longitudinal beam; 112-slide rail; 113-cross beam;

[0031] 12-adapter bracket; 120-tube cavity; 121-strut assembly; 122-positioning support plate; 123-adapter hole; 124-upper adaptor seat; 125-lower adaptor seat; 126-positioning sleeve; 127-positioning strut; 128-reference hole; 129-positioning hole;

[0032] 13- regulating valve;

[0033] 14- Flow meter;

[0034] 15- Pressure gauge. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide an off-line testing device for a pneumatic diaphragm pump, which can perform an off-line test on the pneumatic diaphragm pump to individually detect whether the pneumatic diaphragm pump fails, so as to quickly and accurately determine the cause of the failure of the nuclear power plant pumping system.

[0036] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, in the present invention, unless otherwise clearly stipulated and limited, a first feature “on” or “under” a second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature therebetween.

[0039] In addition, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] Please refer to Figure 1 and Figure 2 .

[0041] In a specific embodiment, the pneumatic diaphragm pump offline testing equipment provided by the utility model includes a base 11 arranged in a horizontal direction and capable of supporting the pneumatic diaphragm pump 10 to be tested, and also includes a supply test tube 101 that can be connected to the feed port of the pneumatic diaphragm pump 10 to be tested and a discharge test tube 102 that is connected to the discharge port of the pneumatic diaphragm pump 10 to be tested.

[0042] A transfer bracket 12 arranged in a vertical direction is provided on the base 11. A regulating valve 13 and a flow meter 14 which are sequentially connected to the downstream of the discharge test pipe 102 along the pumping direction are provided on the top of the transfer bracket 12. A pressure gauge 15 is also provided at the connection between the regulating valve 13 and the discharge test pipe 102.

[0043] During its operation, when the pneumatic diaphragm pump 10 in the nuclear power plant's pumping system fails to pump or has other problems and it is suspected that the pneumatic diaphragm pump 10 is faulty, the pneumatic diaphragm pump 10 in the pumping system can be removed as the pneumatic diaphragm pump 10 to be tested, and the pneumatic diaphragm pump 10 to be tested can be securely placed on the base 11, and then the discharge test pipe 102 is connected between the pneumatic diaphragm pump 10 to be tested and the regulating valve 13, and the feed test pipe 101 is connected between the pneumatic diaphragm pump 10 to be tested and the external test feed equipment. After ensuring that all pipes and equipment are connected in place, the pneumatic diaphragm pump 10 to be tested can be started for offline testing.

[0044] During the test, the regulating valve 13 is kept open, and the fluid material sent from the external test feeding device is passed into the tested pneumatic diaphragm pump 10 through the feeding test tube 101. After the fluid material is discharged by the tested pneumatic diaphragm pump 10, it flows through the discharge test tube 102, the regulating valve 13 and the flow meter 14 in sequence, and then is discharged to the external material collection device. During this period, the operating status of the currently tested pneumatic diaphragm pump 10 can be understood by monitoring the real-time detection data of the pressure gauge 15 and the flow meter 14, so as to determine whether the tested pneumatic diaphragm pump 10 can operate normally.

[0045] During the actual test, if the test data analysis fed back by the pressure gauge 15 and the flow meter 14 shows that the tested pneumatic diaphragm pump 10 cannot operate normally, it can be determined that the tested pneumatic diaphragm pump 10 is faulty, and the tested pneumatic diaphragm pump 10 needs to be repaired or replaced to ensure the normal operation of the nuclear power plant pumping system; if the test data analysis fed back by the pressure gauge 15 and the flow meter 14 shows that the tested pneumatic diaphragm pump 10 can operate normally, it can be determined that the currently tested pneumatic diaphragm pump 10 is not faulty, and the staff needs to inspect and repair other supporting equipment of the pumping system with problems before the pumping system can resume normal operation.

[0046] It can be seen that the pneumatic diaphragm pump offline testing equipment can perform a separate performance test on the pneumatic diaphragm pump 10 in an offline state to determine whether the pneumatic diaphragm pump 10 being tested is faulty, so that the staff can quickly and accurately determine whether the failure of the pumping system to operate normally is caused by the failure of the pneumatic diaphragm pump 10, thereby quickly and accurately eliminating the corresponding faults, so that the nuclear power plant pumping system and other related systems and equipment can be restored to work in time, thereby ensuring the smooth operation of the nuclear power plant.

[0047] Generally, the pneumatic diaphragm pump 10 to be tested can be directly placed flat on the base 11, or the pneumatic diaphragm pump 10 can be reliably fixed on the base 11 by means of auxiliary fixing equipment such as locks, binding belts or clamps that can be used in conjunction with the base 11. In practical applications, the staff can flexibly select and adjust the arrangement and connection method between the pneumatic diaphragm pump 10 to be tested and the base 11 according to actual working conditions. In principle, any method can be used as long as the pneumatic diaphragm pump 10 to be tested can be reliably placed and the test operation requirements of the pneumatic diaphragm pump offline test equipment can be met.

[0048] Specifically, the adapter bracket 12 includes a plurality of support rod assemblies 121 extending in the vertical direction and capable of reciprocating and retracting in the vertical direction. In actual operation, the effective height of the adapter bracket 12 can be adjusted by controlling the reciprocating and retracting of the support rod assemblies 121 in the vertical direction, and thereby realizing the linkage adjustment of the size of the space below the adapter bracket 12, so as to match the assembly requirements of the pneumatic diaphragm pump 10 and the discharge test tube 102 and other connectors of different sizes, meet the testing requirements of the pneumatic diaphragm pump 10 under different working conditions, and ensure that the relevant test data is accurate and reliable.

[0049] Furthermore, the support rod assemblies 121 are arranged in an array along the horizontal direction to enclose a pipe cavity 120 between the support rod assemblies 121 to accommodate the discharge test tube 102. When the test is implemented, the two ends of the discharge test tube 102 are respectively connected to the pneumatic diaphragm pump 10 and the regulating valve 13 to be tested, and most of the tube body of the discharge test tube 102 is located in the pipe cavity 120, so as to utilize the reliable support of the support rod assemblies 121 to effectively ensure the structural stability of the pipe cavity 120, thereby providing sufficient and stable layout space for the discharge test tube 102, avoiding structural interference between the tube body of the discharge test tube 102 and other equipment, and ensuring the appropriate extension and bending arrangement of the tube body of the discharge test tube 102, so as to avoid damage to the discharge test tube 102 due to abnormal bending or local stress concentration.

[0050] Specifically, the adapter bracket 12 also includes a horizontally arranged positioning support plate 122, and the top end of each support rod assembly 121 is linked to the bottom of the positioning support plate 122; the middle part of the positioning support plate 122 has a transfer hole 123 connected between the discharge test pipe 102 and the regulating valve 13, and the regulating valve 13, the flow meter 14 and the pressure gauge 15 are all arranged on the positioning support plate 122. The positioning support plate 122 can provide a stable assembly space and reliable structural support for the regulating valve 13, the flow meter 14 and the pressure gauge 15, so as to ensure the stable assembly arrangement and reliable operation of the regulating valve 13, the flow meter 14 and the pressure gauge 15.

[0051] More specifically, an upper adapter seat 124 that can be detachably connected to the inlet end of the regulating valve 13 is coaxially arranged at the upper opening of the adapter hole 123, and a lower adapter seat 125 that can be detachably connected to the outlet end of the discharge test tube 102 is coaxially arranged at the lower opening of the adapter hole 123. Generally, both the upper adapter seat 124 and the lower adapter seat 125 can be flanges. Considering the different actual working conditions, a pipe sleeve or other pipeline adapter with a locking function can also be used as the specific application type of the upper adapter seat 124 and the lower adapter seat 125. In principle, as long as the reliable connection and smooth conduction between the adapter hole 123 and the regulating valve 13 and the discharge test tube 102 can be guaranteed, and the structural sealing at the adapter hole 123 can be guaranteed to meet the actual assembly application needs of the pneumatic diaphragm pump offline test equipment.

[0052] In addition, the strut assembly 121 includes a positioning sleeve 126 arranged in the vertical direction, and a positioning strut 127 capable of axially reciprocating is coaxially inserted into the lumen of the positioning sleeve 126 .

[0053] On this basis, the side wall of the positioning sleeve 126 has a plurality of reference holes 128 evenly distributed along its axial direction, and the side wall of the positioning strut 127 has a plurality of positioning holes 129 evenly distributed along its axial direction. The positioning holes 129 can be coaxially matched with the reference holes 128 in a one-to-one correspondence, and the strut assembly 121 also includes a positioning bolt that can penetrate the reference hole 128 and be threadedly connected to the positioning hole 129.

[0054] In actual operation, when it is necessary to adjust the overall vertical length of the strut assembly 121, the positioning strut 127 is controlled to move axially along the tubular cavity of the positioning sleeve 126 to an appropriate position, and the positioning bolt is inserted into the positioning hole 129 and the reference hole 128 that are currently in a coaxial alignment state, and the positioning bolt and the corresponding reference hole 128 are securely threaded and fixed, so that the current coaxially aligned positioning hole 129 and the reference hole 128 are securely locked by the positioning bolt, thereby locking the current relative position of the positioning strut 127 and the positioning sleeve 126, thereby achieving reliable locking of the current axial extension size of the strut assembly 121, avoiding axial loosening or misalignment between the positioning strut 127 and the positioning sleeve 126 during subsequent equipment operation and use, and ensuring that the structure of the strut assembly 121 is stable and reliable.

[0055] When the axial length of the strut assembly 121 needs to be readjusted, it is only necessary to unscrew the positioning bolts from the currently locked positioning holes 129 and reference holes 128 to release the threaded fastening state and remove the positioning bolts from the current assembly position, so that the positioning strut 127 and the positioning sleeve 126 can restore their axial relative movement ability, so as to implement the corresponding axial length adjustment of the strut assembly 121.

[0056] Accordingly, in order to further improve the structural reliability of the strut assembly 121 in actual applications, the positioning hole 129 and the reference hole 128 can be arranged as threaded holes that can be adapted to the positioning bolt threads, so that the positioning bolt can be threadedly fastened with the positioning hole 129 and the reference hole 128 in a coaxial alignment state, respectively, thereby further improving the locking and fixing effect of the positioning bolt on the axial structure of the rear strut assembly 121 after adjustment, and optimizing the overall structural strength and reliability of the adapter bracket 12.

[0057] On the other hand, the base 11 includes two longitudinal beams 111 arranged in the horizontal direction and parallel to each other. A slide rail 112 extending along the length direction of the longitudinal beam 111 is arranged on the side wall of any longitudinal beam 111 facing the other longitudinal beam 111. A plurality of cross beams 113 extending in the horizontal direction are arranged between the two longitudinal beams 111. The extension direction of the cross beam 113 is perpendicular to the length direction of the longitudinal beam 111, and each cross beam 113 is arranged in sequence along the length direction of the longitudinal beam 111; the two ends of the cross beam 113 are slidably connected to the two slide rails 112 one by one.

[0058] The crossbeam 113 is controlled to move appropriately along the slide rail 112 to the target position so as to provide reliable structural support for the pneumatic diaphragm pump 10 to be tested that needs to be arranged at the target position. When the arrangement position of the pneumatic diaphragm pump 10 to be tested needs to be adjusted, the crossbeam 113 can be controlled to continue moving along the slide rail 112 to the next target position.

[0059] In practical applications, a limit locking device that can be adapted to the cross beam 113 can also be arranged at the slide rail 112, so as to reliably lock the current position of the cross beam 113. Generally, the limit locking device can be a limit boss that can abut against the side of the cross beam 113, or a limit bolt that can be inserted and threadedly connected to the side wall of the cross beam 113 and / or the slide rail 112. Of course, the specific limit locking method of the cross beam 113 in the slide rail 112 can also be flexibly selected and adjusted according to actual working conditions and assembly requirements. In principle, any method can be used as long as it can meet the actual application needs of the pneumatic diaphragm pump offline test equipment.

[0060] Furthermore, the longitudinal beam 111 and the cross beam 113 are both made of square steel. The square steel has a simple and reliable structure and is easy to process, which can fully ensure the structural strength of the base 11 and appropriately reduce the production and use costs of the base 11.

[0061] In addition, the two sides of the bottom of the adapter bracket 12 are respectively slidably connected to the two slide rails 112. In this way, the adapter bracket 12 can be controlled to move to an appropriate position along the slide rails 112 as a whole, so as to further optimize the relative positions of the tested pneumatic diaphragm pump 10 and the regulating valve 13, flow meter 14 and pressure gauge 15 located on the adapter bracket 12, so as to meet the equipment assembly and test operation requirements under different working conditions and assembly spaces, and optimize the working condition adaptability and operation convenience of the pneumatic diaphragm pump offline test equipment.

[0062] In addition, a walking device is provided at the bottom of the base 11. By means of the walking device, the pneumatic diaphragm pump offline test device can be moved as a whole, so that the layout position of the pneumatic diaphragm pump offline test device can be adjusted accordingly according to actual working conditions and test operation requirements, thereby further improving the working condition adaptability and operation convenience of the pneumatic diaphragm pump offline test device.

[0063] Generally, the walking device can be a universal wheel arrayed at the bottom of the base 11, or a directional wheel that can match the current working environment or other action mechanisms that can achieve position movement. The staff can flexibly select and adjust the specific type of the walking device according to the specific working conditions and application conditions. In principle, any type of walking device can meet the actual operation and use requirements of the pneumatic diaphragm pump offline test equipment.

[0064] In summary, it can be seen that during the operation and use of the pneumatic diaphragm pump offline testing equipment provided in the utility model, when the pneumatic diaphragm pump in the pumping system of the nuclear power plant fails to pump or has other problems and it is suspected that the pneumatic diaphragm pump has failed, the pneumatic diaphragm pump in the pumping system can be removed and used as the pneumatic diaphragm pump to be tested. The pneumatic diaphragm pump to be tested is then securely placed on the base, and then the discharge test pipe is connected correspondingly between the pneumatic diaphragm pump to be tested and the regulating valve, and the feed test pipe is connected between the pneumatic diaphragm pump to be tested and the external test feed equipment. After ensuring that all pipes and equipment are connected in place, the pneumatic diaphragm pump to be tested can be started for offline testing. During the test, the regulating valve is kept open, and the fluid material sent from the feeding equipment for external testing is passed into the pneumatic diaphragm pump being tested through the feeding test tube. After the fluid material is discharged by the pneumatic diaphragm pump being tested, it flows through the discharge test tube, the regulating valve and the flow meter in sequence, and then the fluid material is discharged to the external material collection device; during this period, the operating status of the pneumatic diaphragm pump being tested can be understood by monitoring the real-time detection data of the pressure gauge and the flow meter, so as to determine whether the pneumatic diaphragm pump being tested can operate normally. If the pneumatic diaphragm pump being tested cannot operate normally through the test data feedback analysis, it can be determined that there is a fault in the pneumatic diaphragm pump being tested, and the pneumatic diaphragm pump being tested needs to be repaired or replaced to ensure the normal operation of the nuclear power plant pumping system; if the pneumatic diaphragm pump being tested can operate normally through the test data feedback analysis, it can be determined that the pneumatic diaphragm pump being tested is not faulty, and the staff needs to detect and repair other supporting equipment of the pumping system with problems to restore the pumping system to normal operation. The pneumatic diaphragm pump offline testing equipment can perform a separate performance test on the pneumatic diaphragm pump in an offline state to determine whether the pneumatic diaphragm pump being tested is faulty, so that the staff can quickly and accurately determine whether the failure of the pumping system to operate normally is caused by the failure of the pneumatic diaphragm pump, thereby quickly and accurately eliminating the corresponding fault, so that the nuclear power plant pumping system and other related systems and equipment can be restored to work in time, thereby ensuring the smooth operation of the nuclear power plant.

[0065] The above is a detailed introduction to the off-line testing equipment for pneumatic diaphragm pumps provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An off-line testing device for a pneumatic diaphragm pump, characterized in that: It includes a base arranged in a horizontal direction and capable of supporting the pneumatic diaphragm pump to be tested, and also includes a feed test pipe capable of being communicated with the feed port of the pneumatic diaphragm pump to be tested and a discharge test pipe communicated with the discharge port of the pneumatic diaphragm pump to be tested; The base is provided with an adapter bracket arranged in a vertical direction, and the top of the adapter bracket is provided with a regulating valve and a flow meter which are sequentially connected to the downstream of the discharge test pipe along the pumping direction, and a pressure gauge is also provided at the connection between the regulating valve and the discharge test pipe.

2. The pneumatic diaphragm pump offline testing device according to claim 1, characterized in that: The adapter bracket includes a plurality of support rod assemblies extending in a vertical direction and capable of reciprocating and telescoping in the vertical direction.

3. The off-line testing device for a pneumatic diaphragm pump according to claim 2, characterized in that: The support rod assemblies are arranged in an array along the horizontal direction, so as to enclose a pipe laying cavity capable of accommodating the discharge test pipe between the support rod assemblies.

4. The off-line testing device for a pneumatic diaphragm pump according to claim 3, characterized in that: The adapter bracket also includes a horizontally arranged positioning support plate, and the top end of each of the support rod assemblies is linked to the bottom of the positioning support plate; The middle part of the positioning support plate is provided with a transfer hole connected between the discharge test pipe and the regulating valve, and the regulating valve, the flow meter and the pressure gauge are all arranged on the positioning support plate.

5. The off-line testing device for a pneumatic diaphragm pump according to claim 4, characterized in that: An upper adapter seat detachably connected to the inlet end of the regulating valve is coaxially arranged at the upper opening of the adapter hole, and a lower adapter seat detachably connected to the outlet end of the discharge test tube is coaxially arranged at the lower opening of the adapter hole.

6. The off-line testing device for a pneumatic diaphragm pump according to claim 2, characterized in that: The support rod assembly comprises a positioning sleeve arranged in a vertical direction, wherein a positioning support rod capable of axially reciprocating movement is coaxially inserted into the lumen of the positioning sleeve; The side wall of the positioning sleeve has a plurality of reference holes evenly distributed along its axial direction, and the side wall of the positioning strut has a plurality of positioning holes evenly distributed along its axial direction. The positioning holes can be coaxially matched with the reference holes in a one-to-one correspondence, and the strut assembly also includes a positioning bolt that can pass through the reference hole and be threadedly connected to the positioning hole.

7. The off-line testing device for a pneumatic diaphragm pump according to claim 1, characterized in that: The base includes two longitudinal beams arranged in the horizontal direction and parallel to each other, a slide rail extending in the length direction of the longitudinal beam is arranged on the side wall of any longitudinal beam facing the other longitudinal beam, and a plurality of horizontal beams extending in the horizontal direction are arranged between the two longitudinal beams, the extension direction of the horizontal beams is perpendicular to the length direction of the longitudinal beams, and the horizontal beams are arranged in sequence along the length direction of the longitudinal beams; The two ends of the cross beam are slidably connected to the two slide rails in a one-to-one correspondence.

8. The off-line testing device for a pneumatic diaphragm pump according to claim 7, characterized in that: The two sides of the bottom of the adapter bracket are respectively slidably connected to the two slide rails.

9. The off-line testing device for a pneumatic diaphragm pump according to claim 7, characterized in that: The longitudinal beams and the cross beams are both square steel parts.

10. The off-line testing device for a pneumatic diaphragm pump according to claim 1, characterized in that: A walking device is arranged at the bottom of the base.

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