CN116659840A - Safety valve verification equipment and verification method - Google Patents
Safety valve verification equipment and verification method Download PDFInfo
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- CN116659840A CN116659840A CN202310649581.0A CN202310649581A CN116659840A CN 116659840 A CN116659840 A CN 116659840A CN 202310649581 A CN202310649581 A CN 202310649581A CN 116659840 A CN116659840 A CN 116659840A
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- safety valve
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- gas
- pipeline
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- 238000012795 verification Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 102
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 68
- 229910052786 argon Inorganic materials 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000000670 limiting effect Effects 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 31
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 24
- 238000005457 optimization Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to the technical field of safety valves, and particularly discloses safety valve verification equipment and a verification method, wherein the safety valve verification equipment comprises a box body, and an air supply mechanism for supplying air to a safety valve is arranged in the box body; the side face of the box body is provided with a mounting plate, and the mounting plate is provided with a protection mechanism for clamping the safety valve and preventing gas from leaking. According to the invention, the gas entering the connecting port enters the safety valve for verification test, so that the verification test of the safety valve is completed, different test gases can be selected for verification test of the safety valve, the safety valve can be independently selected according to specific use conditions, multiple selectivities in the verification test of the safety valve are improved, the cold gas tank, the air pressure tank or the argon gas tank is moved up from the box body, the cold gas tank, the air pressure tank or the argon gas tank is convenient to replace, different gas tanks can be selected according to different verification gases required during verification of the safety valve, and the safety valve can be independently selected according to requirements.
Description
Technical Field
The invention relates to the technical field of safety valves, in particular to safety valve verification equipment and a safety valve verification method.
Background
The safety valve is a special valve which is in a normally closed state under the action of external force and prevents the medium pressure in the pipeline or the equipment from exceeding a specified value by discharging the medium to the outside of the system when the medium pressure in the equipment or the pipeline rises to exceed the specified value. The safety valve belongs to automatic valves, and is mainly used for boilers, pressure vessels and pipelines, and the control pressure does not exceed a specified value, so that the safety valve plays an important role in protecting personal safety and equipment operation.
After the production of relief valve finishes, usually need carry out the check-up to the relief valve and come test relief valve and accord with the standard, like the chinese patent of application number 202020486472.3, disclosed "a relief valve check-up equipment, its structure includes top cap, handle, thermovent, automatic fixing device, protecgulum, relief valve check-up organism, control panel, manometer, perspective glass, the top cap front side is connected with the handle back is perpendicular, the top cap is installed on relief valve check-up organism top, the perspective glass side is inlayed inside the top cap, the thermovent from left to right interval is the same arranges in proper order in relief valve check-up organism lower half front side, the protecgulum side is fixed in relief valve check-up organism bottom front side, has increased automatic fixing device, and the device can fix the relief valve automatically when carrying out the check-up, can improve the check-up speed of equipment like this. "; however, when the safety valve is checked, the safety valve checking device can check the safety valve by only one gas, and the check range of the safety valve is limited, so in order to solve the problems, we propose a safety valve checking device and a safety valve checking method.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides safety valve verification equipment and a safety valve verification method.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the safety valve checking equipment comprises a box body, wherein an air supply mechanism for supplying air to the safety valve is arranged in the box body;
the side face of the box body is provided with a mounting plate, and the mounting plate is provided with a protection mechanism for clamping the safety valve and preventing gas from leaking;
the mounting plate is provided with a checking mechanism for checking the safety valve;
the checking mechanism comprises a connecting port communicated with the air supply mechanism, and the connecting port is used for being communicated with the safety valve.
Preferably, the air supply mechanism comprises a cold air tank, an air pressure tank and an argon tank which are arranged in the box body, wherein the argon tank is communicated with a conveying pipe through a first pipeline, the air pressure tank is communicated with the conveying pipe through a second pipeline, the cold air tank is communicated with the conveying pipe through a third pipeline, flow meters, electronic valves and pressure gauges are arranged in the first pipeline, the second pipeline and the third pipeline, and the connecting ports are communicated with the conveying pipe.
Preferably, the electric telescopic rod is installed to the diapire in the box, and the terminal rigid coupling of piston rod of electric telescopic rod has the limiting plate, has seted up three arc wall on the limiting plate, and cold gas jar, atmospheric pressure jar and argon gas jar are installed respectively in three arc wall, install a plurality of baffle on the limiting plate, and the baffle is used for separating cold gas jar, atmospheric pressure jar and argon gas jar.
Preferably, the mounting groove has been seted up to diapire in the box, and electric telescopic handle installs in the mounting groove, and electric telescopic handle's piston rod end rigid coupling has the boss, and the boss rigid coupling is in limiting plate bottom, and the spout has been seted up to the box inner wall, and the slider is installed to the limiting plate side, slider slidable mounting in the spout.
Preferably, the mounting plate is provided with a fixing plate, a plurality of limiting blocks are arranged in the fixing plate, and the first pipeline, the second pipeline and the third pipeline respectively penetrate through the limiting blocks and are communicated with the conveying pipe.
Preferably, the protection machanism is including installing the first diaphragm on the mounting panel, first diaphragm side rotation installs the two-way lead screw of positive and negative tooth, the internal thread piece has all been cup jointed to the equal screw thread on the two sections screw threads of two-way lead screw of positive and negative tooth revolve to opposite threaded rod, the fixed block is all installed to the opposite face of two internal thread pieces, seal box is all installed to the opposite face of two fixed blocks, all install the grip block that is used for carrying out the centre gripping fixed to the relief valve in two seal boxes, the grip block side has offered the grip groove with relief valve surface assorted, semicircular opening has all been seted up to the opposite face of two other seal boxes, install sealed the pad in the opening, first diaphragm side is provided with and is used for carrying out spacing subassembly to the two-way lead screw of positive and negative tooth.
Preferably, the limiting component comprises a sliding rod arranged on the side face of the first transverse plate, a sliding sleeve is arranged on the side face of the internal thread block, and the sliding sleeve is sleeved on the sliding rod in a sliding manner.
Preferably, the motor is installed to first diaphragm side, and the output shaft of motor is connected with positive and negative tooth two-way lead screw, is fixed with the second diaphragm on the mounting panel, and second diaphragm side-mounting has the bearing, and positive and negative tooth two-way lead screw tip is installed at the bearing inner circle, and the slide bar is installed between first diaphragm and second diaphragm.
Preferably, the mounting plate is fixed with the strip plate, and the conveyer pipe is installed in the strip plate side, and the conveyer pipe runs through the strip plate and is linked together with the connection port, has seted up the cavity of ring heart in the strip plate, and the conveyer pipe is located annular cavity inner circle, and one side that the cavity is close to sealed box is the annular and has seted up a plurality of through-hole, and the strip plate is kept away from one side of sealed box and is installed electronic aspirator pump and collect the gasbag, and the end of breathing in of electronic aspirator pump is linked together with the cavity, and the exhaust end of electronic aspirator pump is linked together with collect the gasbag.
The invention relates to a verification method of safety valve verification equipment, which comprises the following steps:
s1: the safety valve to be checked is communicated with the connecting port, and a cold air tank, an air pressure tank or an argon tank is selected according to the gas to be checked of the safety valve;
s2: the gas in the cold gas tank, the air pressure tank or the argon gas tank enters the conveying pipe, and the gas entering the conveying pipe enters the connecting port;
s3: the gas entering the connecting port finally enters the safety valve, and the safety valve is checked by observing the bearable capacities of the safety valve under different gases and different pressures;
s4: the gas leaked during the verification can be recovered into the collecting air bag for uniform collection and recovery, so that pollution caused by gas leakage or damage to the body caused by staff inhaling the body is avoided, and the safety valve can be verified by replacing the tank bodies of different gases according to specific use conditions.
Compared with the prior art, the invention has the beneficial effects that:
1: according to the invention, the gas entering the connecting port enters the safety valve for verification test, so that the verification test of the safety valve is completed, different test gases can be selected for verification test of the safety valve, the safety valve can be selected independently according to specific use conditions, multiple selectivities in the verification test of the safety valve are improved, the cold gas tank, the air pressure tank or the argon gas tank is moved up from the box body, the cold gas tank, the air pressure tank or the argon gas tank is convenient to replace, different gas tanks can be selected according to different verification gases required during verification of the safety valve, the safety valve can be selected independently according to the requirements, and the convenience of the device in use is improved.
2: according to the invention, the two sealing boxes move close to each other until the two sealing boxes seal the safety valve in the two sealing boxes, and the clamping blocks in the two sealing boxes are utilized to clamp and fix the safety valve, so that a certain clamping force can be provided for the safety valve, the stability of the safety valve in a verification test is improved, the safety valve can be clamped and fixed, the situation that the safety valve flies out to hurt people due to overlarge pressure received after being communicated with the connecting port is avoided, a certain clamping limiting force can be provided for the safety valve, and the stability of the safety valve in the communication with the connecting port is ensured.
3: the air suction end of the electric suction pump absorbs the air in the two sealing boxes through the cavity and the through hole, the air in the sealing boxes can be collected into the electric suction pump, the air leaked from the safety valve is collected by the two sealing boxes, the air leaked from the two sealing boxes is uniformly collected and treated through the electric suction pump, the cavity and the through hole, the influence of environmental pollution or harmful gas on the body health of a worker caused by the leakage of the air leaked from the safety valve to the outside during the verification test is avoided, the air leaked from the safety valve during the verification test can be uniformly collected and treated, the absorbed air is uniformly discharged into the collecting air bag through the electric suction pump for uniform collection and recovery treatment, the environment-friendly type safety valve is improved, and the air collected in the collecting air bag is convenient to recycle in the later period, so that the environment-friendly performance of the safety valve during the use is improved.
Drawings
FIG. 1 is a top view of a safety valve verification apparatus according to the present invention;
FIG. 2 is a cross-sectional view of a safety valve verification apparatus according to the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is an enlarged view of a portion B of FIG. 2;
FIG. 5 is a schematic diagram of a box of a safety valve checking device according to the present invention;
FIG. 6 is a schematic diagram showing connection between an electric telescopic rod and a limiting plate of a safety valve checking device according to the present invention;
fig. 7 is a schematic structural diagram of an installation groove of a safety valve checking device according to the present invention.
In the figure: 1. a case; 2. a cold air tank; 3. an air pressure tank; 4. an argon tank; 5. a limiting plate; 6. a slide block; 7. a mounting plate; 8. a first pipe; 9. a second pipe; 10. a third conduit; 11. a fixing plate; 12. a strip-shaped plate; 13. a delivery tube; 14. a connection port; 15. a first cross plate; 16. a motor; 17. a second cross plate; 18. a positive and negative tooth bidirectional screw rod; 19. a slide bar; 20. a sliding sleeve; 21. an internal thread block; 22. a limiting block; 23. a bearing; 24. a cavity; 25. an electric getter pump; 26. collecting the air bags; 27. a fixed block; 28. a seal box; 29. a clamping block; 30. an opening; 31. a mounting groove; 32. a chute; 33. an electric telescopic rod; 34. a reinforcing block; 35. and a baffle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 7, a safety valve checking apparatus includes a case 1, in which a gas supply mechanism for supplying gas to a safety valve is provided in the case 1;
the side surface of the box body 1 is provided with a mounting plate 7, and the mounting plate 7 is provided with a protection mechanism for clamping the safety valve and preventing gas from leaking;
the mounting plate 7 is provided with a checking mechanism for checking the safety valve;
the checking mechanism includes a connection port 14 in communication with the air supply mechanism, the connection port 14 being for communication with the safety valve.
As a technical optimization scheme of the invention, the gas supply mechanism comprises a cold gas tank 2, a gas pressure tank 3 and an argon gas tank 4 which are arranged in a box body 1, wherein the argon gas tank 4 is communicated with a conveying pipe 13 through a first pipeline 8, the gas pressure tank 3 is communicated with the conveying pipe 13 through a second pipeline 9, the cold gas tank 2 is communicated with the conveying pipe 13 through a third pipeline 10, flow meters, electronic valves and pressure gauges are arranged in the first pipeline 8, the second pipeline 9 and the third pipeline 10, a connecting port 14 is communicated with the conveying pipe 13, the flow meters arranged in the first pipeline 8, the second pipeline 9 and the third pipeline 10 can calculate the output gas quantity in the first pipeline 8, the second pipeline 9 and the third pipeline 10, the electronic valves in the first pipeline 8, the second pipeline 9 and the third pipeline 10 can play a role of closing and opening the first pipeline 8, the second pipeline 9 and the third pipeline 10, and the pressure gauges in the first pipeline 8, the second pipeline 9 and the third pipeline 10 can display the running quantity of gas in the first pipeline 8, the second pipeline 9 and the third pipeline 10.
As a technical optimization scheme of the invention, an electric telescopic rod 33 is arranged on the inner bottom wall of a box body 1, a limiting plate 5 is fixedly connected to the tail end of a piston rod of the electric telescopic rod 33, three arc grooves are formed in the limiting plate 5, a cold air tank 2, a pneumatic tank 3 and an argon gas tank 4 are respectively arranged in the three arc grooves, a plurality of baffles 35 are arranged on the limiting plate 5, the baffles 35 are used for separating the cold air tank 2, the pneumatic tank 3 and the argon gas tank 4, the arc grooves can provide limiting effects for the cold air tank 2, the pneumatic tank 3 and the argon gas tank 4, the stability of the cold air tank 2, the pneumatic tank 3 and the argon gas tank 4 when the cold air tank 2, the pneumatic tank 3 and the argon gas tank 4 are arranged on the limiting plate 5 is improved, the baffles 35 can facilitate separating the cold air tank 2, the pneumatic tank 3 and the argon gas tank 4, collision damage among the cold air tank 2, the pneumatic tank 3 and the argon gas tank 4 is avoided, and the protection of the cold air tank 2, the pneumatic tank 3 and the argon tank 4 is improved.
As a technical optimization scheme of the invention, the mounting groove 31 is formed in the inner bottom wall of the box body 1, the electric telescopic rod 33 is mounted in the mounting groove 31, the reinforcing block 34 is fixedly connected to the tail end of the piston rod of the electric telescopic rod 33, the reinforcing block 34 is fixedly connected to the bottom of the limiting plate 5, the sliding groove 32 is formed in the inner wall of the box body 1, the sliding block 6 is mounted on the side surface of the limiting plate 5, the sliding block 6 is slidably mounted in the sliding groove 32, the reinforcing block 34 can improve the connection strength between the piston rod of the electric telescopic rod 33 and the limiting plate 5, the stability of connection between the electric telescopic rod 33 and the limiting plate 5 is improved, and the limiting plate 5 can be guided when moving up and down in the box body 1 through the matched use of the sliding block 6 and the sliding groove 32, so that the stability of the limiting plate 5 when moving up and down in the box body 1 is improved.
As a technical optimization scheme of the invention, the fixing plate 11 is arranged on the mounting plate 7, the plurality of limiting blocks 22 are arranged in the fixing plate 11, the first pipeline 8, the second pipeline 9 and the third pipeline 10 respectively penetrate through the plurality of limiting blocks 22 and are communicated with the conveying pipe 13, and the limiting of the first pipeline 8, the second pipeline 9 and the third pipeline 10 can be conveniently provided through the cooperation of the fixing plate 11 and the limiting blocks 22.
As a technical optimization scheme of the invention, the protection mechanism comprises a first transverse plate 15 arranged on a mounting plate 7, a positive and negative screw rod 18 is rotatably arranged on the side surface of the first transverse plate 15, internal thread blocks 21 are sleeved on two sections of threaded rods with opposite threads of the positive and negative screw rod 18 in a threaded manner, fixed blocks 27 are arranged on the opposite surfaces of the two internal thread blocks 21, sealing boxes 28 are arranged on the opposite surfaces of the two fixed blocks 27, clamping blocks 29 for clamping and fixing a safety valve are arranged in the two sealing boxes 28, clamping grooves matched with the outer surface of the safety valve are formed in the side surfaces of the clamping blocks 29, semicircular openings 30 are formed in the opposite surfaces of the other two sealing boxes 28, sealing gaskets are arranged in the openings 30, and limiting components for limiting the positive and negative screw rod 18 are arranged on the side surfaces of the first transverse plate 15.
As a technical optimization scheme of the invention, the limiting component comprises the sliding rod 19 arranged on the side surface of the first transverse plate 15, the sliding sleeve 20 is arranged on the side surface of the internal thread block 21, the sliding sleeve 20 is in sliding sleeve connection with the sliding rod 19, and the internal thread block 21 can conveniently provide a limiting effect through the matching use of the sliding rod 19 and the sliding sleeve 20, so that the internal thread block 21 can only do transverse movement on the positive and negative teeth bidirectional screw rod 18.
As a technical optimization scheme of the invention, a motor 16 is arranged on the side surface of a first transverse plate 15, an output shaft of the motor 16 is connected with a positive and negative bi-directional screw rod 18, a second transverse plate 17 is fixed on a mounting plate 7, a bearing 23 is arranged on the side surface of the second transverse plate 17, the end part of the positive and negative bi-directional screw rod 18 is arranged on the inner ring of the bearing 23, a sliding rod 19 is arranged between the first transverse plate 15 and the second transverse plate 17, the output shaft of the motor 16 can conveniently drive the positive and negative bi-directional screw rod 18 to rotate, and the bearing 23 can provide guidance and support for the positive and negative bi-directional screw rod 18, so that the stability of the positive and negative bi-directional screw rod 18 during working is improved.
As a technical optimization scheme of the invention, a strip-shaped plate 12 is fixed on the mounting plate 7, a conveying pipe 13 is arranged on the side surface of the strip-shaped plate 12, the conveying pipe 13 penetrates through the strip-shaped plate 12 and is communicated with a connecting port 14, a hollow cavity 24 with a ring center is formed in the strip-shaped plate 12, the conveying pipe 13 is positioned in the inner ring of the hollow cavity 24, a plurality of through holes are formed in the side, close to the sealing box 28, of the hollow cavity 24, a plurality of electric suction pumps 25 and a collecting air bag 26 are arranged on the side, far away from the sealing box 28, of the strip-shaped plate 12, the suction ends of the electric suction pumps 25 are communicated with the hollow cavity 24, the exhaust ends of the electric suction pumps 25 are communicated with the collecting air bag 26, and the collecting air bag 26 can facilitate uniform collecting treatment of gas which is inclined by a safety valve during verification test and is absorbed by the electric suction pumps 25.
The invention relates to a verification method of safety valve verification equipment, which comprises the following steps:
s1: the safety valve to be checked is communicated with the connecting port 14, and the cold gas tank 2, the air pressure tank 3 or the argon gas tank 4 is selected according to the gas to be checked of the safety valve;
s2: the gas in the cold gas tank 2, the air pressure tank 3 or the argon gas tank 4 enters the conveying pipe 13, and the gas entering the conveying pipe 13 enters the connecting port 14;
s3: the gas entering the connecting port 14 finally enters the safety valve, and the safety valve is checked by observing the bearable capacities of the safety valve under different gases and different pressures;
s4: the leaked gas can be recovered into the collecting air bag 26 for uniform collection and recovery during verification, so that pollution caused by gas leakage or damage to the body caused by staff inhaling the body is avoided, and the safety valve can be verified by replacing the tank bodies of different gases according to specific use conditions.
When the invention is used, when the safety valve is required to be checked, the safety valve to be checked is communicated with the connecting port 14, and the corresponding cold air tank 2, the air pressure tank 3 or the argon gas tank 4 is opened according to the gas required to be tested, for example, the cold air tank 2 and the gas in the cold air tank 2 are opened to enter the third pipeline 10, the electronic valve in the third pipeline 10 is opened, the gas entering the third pipeline 10 enters the conveying pipe 13 through the third pipeline 10, the gas entering the conveying pipe 13 enters the connecting port 14 through the conveying pipe 13, and the gas entering the connecting port 14 enters the safety valve to be checked, so that the check test of the safety valve is completed, different test gases can be selected to be used for checking the safety valve, and the automatic selection can be carried out according to specific use conditions, so that the various choices of the check test on the safety valve are improved.
Before the check test is performed on the safety valve, the motor 16 can be started, the output shaft of the motor 16 drives the positive and negative screw rod 18 to rotate, the positive and negative screw rod 18 rotates to enable the two internal thread blocks 21 to move close to each other on the positive and negative screw rod 18, the two internal thread blocks 21 can drive the two fixing blocks 27 to move close to each other, the two fixing blocks 27 can move close to each other in the moving process of the two sealing boxes 28, the two sealing boxes 28 move close to each other until the two sealing boxes 28 seal the safety valve in the two sealing boxes 28, and the clamping blocks 29 in the two sealing boxes 28 are utilized for clamping and fixing the safety valve, so that a certain clamping force can be provided for the safety valve, the stability of the safety valve during the check test can be improved, the safety valve can be clamped and fixed, the safety valve can be prevented from being damaged due to the fact that the pressure received after the safety valve is communicated with the connecting port 14 is too large, the safety valve can be provided with a certain clamping limiting force, and the stability of the safety valve when the safety valve is communicated with the connecting port 14 is ensured.
After the safety valve which is being subjected to the verification test is sealed by the two sealing boxes 28, the gas which is leaked out of the safety valve during the verification test can be collected in the sealing boxes 28 in advance, the electric suction pump 25 is started at the same time, the suction end of the electric suction pump 25 absorbs the gas in the two sealing boxes 28 through the cavity 24 and the through holes, the gas in the sealing boxes 28 can be collected into the electric suction pump 25, the gas which is leaked out of the safety valve is collected by the two sealing boxes 28 in advance, and the gas which is leaked out of the two sealing boxes 28 is uniformly collected through the electric suction pump 25, the cavity 24 and the through holes, so that the influence of environmental pollution or harmful gas on the health of staff caused by the leakage of the gas which is leaked out of the safety valve during the verification test is avoided, the gas which is leaked out of the safety valve during the verification test can be uniformly collected, and absorbed gas is uniformly discharged into the collecting air bag 26 through the electric suction pump 25, the gas which is uniformly collected and recycled is improved, the environment-friendly device is convenient to recycle in the later stage of the collecting air bag 26, and the environment-friendly device is further improved.
When the cold air tank 2, the air pressure tank 3 or the argon gas tank 4 in the box body 1 needs to be replaced, the electric telescopic rod 33 in the box body 1 is started, the piston rod of the electric telescopic rod 33 pushes the limiting plate 5 to move upwards in the box body 1, the limiting plate 5 moves upwards in the box body 1 to drive the cold air tank 2, the air pressure tank 3 or the argon gas tank 4 arranged on the limiting plate, and then the cold air tank 2, the air pressure tank 3 or the argon gas tank 4 moves upwards out of the box body 1, so that the cold air tank 2, the air pressure tank 3 or the argon gas tank 4 is convenient to replace, different gas tanks can be selected according to different check gases required during check of the safety valve, and the safety valve check valve can be independently selected according to requirements, so that the convenience of the safety valve check valve is improved during use.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The safety valve checking equipment comprises a box body (1) and is characterized in that an air supply mechanism for supplying air to a safety valve is arranged in the box body (1);
the side surface of the box body (1) is provided with a mounting plate (7), and the mounting plate (7) is provided with a protection mechanism for clamping the safety valve and preventing gas from leaking;
a verification mechanism for verifying the safety valve is arranged on the mounting plate (7);
the checking mechanism comprises a connecting port (14) communicated with the air supply mechanism, and the connecting port (14) is used for being communicated with the safety valve.
2. The safety valve checking device according to claim 1, wherein the air supply mechanism comprises a cold air tank (2), an air pressure tank (3) and an argon tank (4) which are arranged in the box body (1), the argon tank (4) is communicated with a conveying pipe (13) through a first pipeline (8), the air pressure tank (3) is communicated with the conveying pipe (13) through a second pipeline (9), the cold air tank (2) is communicated with the conveying pipe (13) through a third pipeline (10), a flowmeter, an electronic valve and a pressure gauge are arranged in the first pipeline (8), the second pipeline (9) and the third pipeline (10), and the connecting port (14) is communicated with the conveying pipe (13).
3. The safety valve checking device according to claim 2, wherein an electric telescopic rod (33) is mounted on the inner bottom wall of the box body (1), a limiting plate (5) is fixedly connected to the tail end of a piston rod of the electric telescopic rod (33), three arc-shaped grooves are formed in the limiting plate (5), the cold air tank (2), the air pressure tank (3) and the argon tank (4) are respectively mounted in the three arc-shaped grooves, a plurality of baffles (35) are mounted on the limiting plate (5), and the baffles (35) are used for separating the cold air tank (2), the air pressure tank (3) and the argon tank (4).
4. A safety valve checking device according to claim 3, characterized in that the inner bottom wall of the box body (1) is provided with a mounting groove (31), the electric telescopic rod (33) is mounted in the mounting groove (31), the tail end of the piston rod of the electric telescopic rod (33) is fixedly connected with a reinforcing block (34), the reinforcing block (34) is fixedly connected to the bottom of the limiting plate (5), the inner wall of the box body (1) is provided with a sliding groove (32), the side surface of the limiting plate (5) is provided with a sliding block (6), and the sliding block (6) is slidably mounted in the sliding groove (32).
5. A safety valve checking device according to claim 3, characterized in that the mounting plate (7) is provided with a fixing plate (11), a plurality of limiting blocks (22) are arranged in the fixing plate (11), and the first pipeline (8), the second pipeline (9) and the third pipeline (10) respectively penetrate through the limiting blocks (22) and are communicated with the conveying pipe (13).
6. The safety valve checking device according to claim 1, wherein the protection mechanism comprises a first transverse plate (15) arranged on the mounting plate (7), the side surface of the first transverse plate (15) is rotationally provided with a positive and negative screw rod (18), two sections of threads of the positive and negative screw rod (18) are screwed on threaded rods with opposite directions, internal thread blocks (21) are sleeved on the threaded rods, fixed blocks (27) are arranged on opposite surfaces of the two internal thread blocks (21), sealing boxes (28) are arranged on opposite surfaces of the two fixed blocks (27), clamping blocks (29) for clamping and fixing the safety valve are arranged in the two sealing boxes (28), clamping grooves matched with the outer surface of the safety valve are formed in the side surfaces of the clamping blocks (29), semicircular openings (30) are formed in opposite surfaces of the other two sealing boxes (28), sealing gaskets are arranged in the openings (30), and limiting components for limiting the positive and negative screw rod (18) are arranged on the side surfaces of the first transverse plate (15).
7. The safety valve checking device according to claim 6, wherein the limiting assembly comprises a sliding rod (19) arranged on the side surface of the first transverse plate (15), a sliding sleeve (20) is arranged on the side surface of the internal thread block (21), and the sliding sleeve (20) is in sliding sleeve connection with the sliding rod (19).
8. The safety valve checking device according to claim 7, wherein the motor (16) is installed on the side face of the first transverse plate (15), an output shaft of the motor (16) is connected with the positive and negative bi-directional screw rod (18), the second transverse plate (17) is fixed on the mounting plate (7), the bearing (23) is installed on the side face of the second transverse plate (17), the end portion of the positive and negative bi-directional screw rod (18) is installed on the inner ring of the bearing (23), and the sliding rod (19) is installed between the first transverse plate (15) and the second transverse plate (17).
9. The safety valve checking device according to claim 6, wherein the mounting plate (7) is fixedly provided with a strip-shaped plate (12), the conveying pipe (13) is arranged on the side surface of the strip-shaped plate (12), the conveying pipe (13) penetrates through the strip-shaped plate (12) to be communicated with the connecting port (14), a cavity (24) with a ring center is formed in the strip-shaped plate (12), the conveying pipe (13) is positioned in an inner ring of the annular cavity (24), one side, close to the sealing box (28), of the cavity (24) is provided with a plurality of through holes in a ring shape, one side, far away from the sealing box (28), of the strip-shaped plate (12) is provided with an electric suction pump (25) and a collecting air bag (26), the suction end of the electric suction pump (25) is communicated with the cavity (24), and the discharge end of the electric suction pump (25) is communicated with the collecting air bag (26).
10. A method of calibrating a safety valve calibration device according to any of the preceding claims 1-9, characterized in that the method comprises the steps of:
s1: the safety valve to be checked is communicated with the connecting port (14), and the cold gas tank (2), the air pressure tank (3) or the argon gas tank (4) are selected according to the gas to be checked of the safety valve;
s2: the gas in the cold gas tank (2), the air pressure tank (3) or the argon gas tank (4) enters the conveying pipe (13), and the gas entering the conveying pipe (13) enters the connecting port (14);
s3: the gas entering the connecting port (14) finally enters the safety valve, and the safety valve is checked by observing the bearable capacities of the safety valve under different gases and different pressures;
s4: the leaked gas can be recovered into the collecting air bag (26) for uniform collection and recovery during verification, so that pollution caused by gas leakage or damage to the body caused by staff inhaling the body is avoided, and the safety valve can be verified by replacing the tank bodies of different gases according to specific use conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310649581.0A CN116659840A (en) | 2023-06-02 | 2023-06-02 | Safety valve verification equipment and verification method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310649581.0A CN116659840A (en) | 2023-06-02 | 2023-06-02 | Safety valve verification equipment and verification method |
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| CN116659840A true CN116659840A (en) | 2023-08-29 |
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| CN202310649581.0A Pending CN116659840A (en) | 2023-06-02 | 2023-06-02 | Safety valve verification equipment and verification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117367784A (en) * | 2023-12-08 | 2024-01-09 | 湖南大用环保科技有限公司 | Multi-item valve performance comprehensive test system |
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- 2023-06-02 CN CN202310649581.0A patent/CN116659840A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117367784A (en) * | 2023-12-08 | 2024-01-09 | 湖南大用环保科技有限公司 | Multi-item valve performance comprehensive test system |
| CN117367784B (en) * | 2023-12-08 | 2024-03-01 | 湖南大用环保科技有限公司 | Multi-item valve performance comprehensive test system |
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