CN105758596B - The application method of large bore valves elevated-temperature seal experimental rig - Google Patents
The application method of large bore valves elevated-temperature seal experimental rig Download PDFInfo
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- CN105758596B CN105758596B CN201610113814.5A CN201610113814A CN105758596B CN 105758596 B CN105758596 B CN 105758596B CN 201610113814 A CN201610113814 A CN 201610113814A CN 105758596 B CN105758596 B CN 105758596B
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Details Of Valves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of large bore valves elevated-temperature seal experimental rig, air accumulator is connected by the first stop valve with air compression station or air pressure pump, the outlet side of air accumulator is connected by appendix with the vacuum tank in electrical heating room, pressure testing plate is set after vacuum tank, fill tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Diffusion valve is set on pressure testing plate；Tested valve is connected with the drive device for driving tested valve to open and close.The present invention is rational in infrastructure, improves the functional reliability of valve.
Description
Technical field
The present invention relates to a kind of large bore valves elevated-temperature seal experimental rig.
Background technology
The experiments of sealing performance of usual large bore valves is all carried out at normal temperatures, due to by expanded with heat and contract with cold under the condition of high temperature,
The influence of the complicated factors such as material property decline, often the qualified product of cold test, under actual worst hot case, lets out
The problems such as leaking exceeded, jam, poor reliability.
The content of the invention
It is an object of the invention to provide a kind of rational in infrastructure, the large bore valves high temperature for improving the functional reliability of valve is close
Testing sealing device.
The present invention technical solution be：
A kind of large bore valves elevated-temperature seal experimental rig, it is characterized in that：Including air accumulator, air accumulator passes through the first cut-out
Valve is connected with air compression station or air pressure pump, and the outlet side of air accumulator is connected by appendix with the vacuum tank in electrical heating room, voltage stabilizing
Pressure testing plate is set after tank, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate
Form cavity；The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Set on appendix
Second stop valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure
Sensor, the first temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Examination
Diffusion valve is set on pressing plate；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 3-10 electric heater, and electric heater is uniform
Distribution.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 3 electric heaters, and electric heater uniformly divides
Cloth.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 5 electric heaters, and electric heater uniformly divides
Cloth.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 8 electric heaters, and electric heater uniformly divides
Cloth.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 9 electric heaters, and electric heater uniformly divides
Cloth.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 10 electric heaters, and electric heater uniformly divides
Cloth.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 4 electric heaters, and electric heater uniformly divides
Cloth.
The present invention is rational in infrastructure, effectively improves the functional reliability of valve.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of one embodiment of the invention.
Embodiment
Embodiment 1：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator 1, air accumulator pass through the first stop valve 2 and sky
Pressure station or air pressure pump connection, the outlet side of air accumulator is connected by appendix 3 with the vacuum tank 5 in electrical heating room 4, after vacuum tank
Pressure testing plate 6 is set, fills tested valve 7 between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate group
Into cavity；The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater 8；Set on appendix
Second stop valve 9, regulating valve 10, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve 11, first
Pressure sensor 12, the first temperature sensor 13；Second safety valve 14, second pressure sensor 15, second are set on vacuum tank
Temperature sensor 16；Diffusion valve 17 is set on pressure testing plate；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 3 electric heaters, and electric heater uniformly divides
Cloth.
Embodiment 2：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator, air accumulator pass through the first stop valve and pneumatics
Stand or air pressure pump connects, the outlet side of air accumulator is connected with the vacuum tank in electrical heating room by appendix, set after vacuum tank
Pressure testing plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second cut-out is set on appendix
Valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the
One temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Set on pressure testing plate
Put diffusion valve；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 5 electric heaters, and electric heater uniformly divides
Cloth.
Embodiment 3：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator, air accumulator pass through the first stop valve and pneumatics
Stand or air pressure pump connects, the outlet side of air accumulator is connected with the vacuum tank in electrical heating room by appendix, set after vacuum tank
Pressure testing plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second cut-out is set on appendix
Valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the
One temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Set on pressure testing plate
Put diffusion valve；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 4 electric heaters, and electric heater uniformly divides
Cloth.
Embodiment 4：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator, air accumulator pass through the first stop valve and pneumatics
Stand or air pressure pump connects, the outlet side of air accumulator is connected with the vacuum tank in electrical heating room by appendix, set after vacuum tank
Pressure testing plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second cut-out is set on appendix
Valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the
One temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Set on pressure testing plate
Put diffusion valve；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 6 electric heaters, and electric heater uniformly divides
Cloth.
Embodiment 5：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator, air accumulator pass through the first stop valve and pneumatics
Stand or air pressure pump connects, the outlet side of air accumulator is connected with the vacuum tank in electrical heating room by appendix, set after vacuum tank
Pressure testing plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second cut-out is set on appendix
Valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the
One temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Set on pressure testing plate
Put diffusion valve；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 7 electric heaters, and electric heater uniformly divides
Cloth.
Embodiment 6：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator, air accumulator pass through the first stop valve and pneumatics
Stand or air pressure pump connects, the outlet side of air accumulator is connected with the vacuum tank in electrical heating room by appendix, set after vacuum tank
Pressure testing plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second cut-out is set on appendix
Valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the
One temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Set on pressure testing plate
Put diffusion valve；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 8 electric heaters, and electric heater uniformly divides
Cloth.
Embodiment 7：
A kind of large bore valves elevated-temperature seal experimental rig, including air accumulator, air accumulator pass through the first stop valve and pneumatics
Stand or air pressure pump connects, the outlet side of air accumulator is connected with the vacuum tank in electrical heating room by appendix, set after vacuum tank
Pressure testing plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
The face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second cut-out is set on appendix
Valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator is provided with the first safety valve, first pressure sensor, the
One temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；Set on pressure testing plate
Put diffusion valve；Tested valve is connected with the drive device for driving tested valve to open and close.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then
The first stop valve is opened, now the second stop valve is closed；Start up, down, left, right, before and after six inside electrical heating room
Electric heater on individual face, after air accumulator is inflated to setting pressure, the first stop valve is closed, open the second stop valve, compression
Air enters vacuum tank, pressure testing plate, tested valve three are communicated in composition cavity, and flow velocity is by governor valve control, the temperature in cavity
Degree, pressure rise, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed
Tested valve is closed, opens diffusion valve, observes second pressure sensor, is qualified without pressure is fallen.
If tested valve is the form for having two way seal function, after another side experiment, rotated around valve shaft center line
180 °, repeat test process.
The face of up, down, left, right, before and after six inside electrical heating room is respectively provided with 9 electric heaters, and electric heater uniformly divides
Cloth.
Claims (9)
1. a kind of application method of large bore valves elevated-temperature seal experimental rig, it is characterized in that：The large bore valves high temperature is close
Testing sealing device includes air accumulator, and air accumulator is connected by the first stop valve with air compression station or air pressure pump, the outlet side of air accumulator
It is connected by appendix with the vacuum tank in electrical heating room, pressure testing plate is set after vacuum tank, quilt is filled between vacuum tank and pressure testing plate
Test valve, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Inside the electrical heating room it is upper and lower, left,
Right, forward and backward six face is respectively provided with electric heater；Second stop valve, regulating valve are set on appendix, and the second stop valve is positioned at tune
Save in front of valve；Air accumulator is provided with the first safety valve, first pressure sensor, the first temperature sensor；Is set on vacuum tank
Two safety valves, second pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；Tested valve and driving are tested
Try the drive device connection that valve opens and closes；
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Then open
First stop valve, now the second stop valve be closed；Start six faces of up, down, left, right, before and after inside electrical heating room
On electric heater, after air accumulator be inflated to setting pressure after, close the first stop valve, open the second stop valve, compressed air
Communicated into vacuum tank, pressure testing plate, tested valve three in composition cavity, flow velocity is by governor valve control, temperature, pressure in cavity
Power rises, after pressure, temperature rise to setting value, stable a period of time；The second stop valve and electrical heating are closed, is closed tested
Valve is tried, opens diffusion valve, observes second pressure sensor, is pressed without falling to be qualified.
2. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：It is if tested
It is the form for having two way seal function to try valve, then after another side experiment, rotates 180 ° around valve shaft center line, repeat test
Process.
3. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 3-10 electric heater, and electric heater is uniformly distributed.
4. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 3 electric heaters, and electric heater is uniformly distributed.
5. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 5 electric heaters, and electric heater is uniformly distributed.
6. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 8 electric heaters, and electric heater is uniformly distributed.
7. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 9 electric heaters, and electric heater is uniformly distributed.
8. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 10 electric heaters, and electric heater is uniformly distributed.
9. the application method of large bore valves elevated-temperature seal experimental rig according to claim 1, it is characterized in that：Electrical heating
The face of up, down, left, right, before and after six inside room is respectively provided with 4 electric heaters, and electric heater is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113814.5A CN105758596B (en) | 2016-03-01 | 2016-03-01 | The application method of large bore valves elevated-temperature seal experimental rig |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201610113814.5A CN105758596B (en) | 2016-03-01 | 2016-03-01 | The application method of large bore valves elevated-temperature seal experimental rig |
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| CN105758596B true CN105758596B (en) | 2018-04-03 |
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Families Citing this family (3)
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| CN109084974A (en) * | 2018-09-19 | 2018-12-25 | 郑州赛奥电子股份有限公司 | Portable pressure relief valve calibration equipment |
| CN109357818B (en) * | 2018-11-20 | 2021-05-04 | 福思特阀门集团有限公司 | Detection device is used in fire control valve processing |
| CN114323497B (en) * | 2021-12-10 | 2023-12-12 | 苏州热工研究院有限公司 | Clamp for testing sealing performance of pipe plug, system and method for testing sealing performance of pipe plug |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766765A (en) * | 1986-11-13 | 1988-08-30 | Westinghouse Electric Corp. | Multiphase valve testing |
| CN202814670U (en) * | 2012-07-30 | 2013-03-20 | 苏州泰伦思气体设备有限公司 | Valve air-tightness detection device |
| CN103411771A (en) * | 2013-09-02 | 2013-11-27 | 上海开维喜阀门集团有限公司 | Large environment simulation test device for pipeline ball valve test |
| CN103884479A (en) * | 2014-04-11 | 2014-06-25 | 慈溪市三洋电子有限公司 | Method and system for testing sealing performance of valve |
| CN103940559A (en) * | 2014-04-14 | 2014-07-23 | 石家庄新奥燃气有限公司 | Leak detection device for valve |
| CN205404060U (en) * | 2016-03-01 | 2016-07-27 | 江苏神通阀门股份有限公司 | Heavy -calibre valve elevated -temperature seal test device |
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