CN105738049B - The application method of the hot mechanism for testing of large bore valves - Google Patents
The application method of the hot mechanism for testing of large bore valves Download PDFInfo
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- CN105738049B CN105738049B CN201610114390.4A CN201610114390A CN105738049B CN 105738049 B CN105738049 B CN 105738049B CN 201610114390 A CN201610114390 A CN 201610114390A CN 105738049 B CN105738049 B CN 105738049B
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- valve
- pressure
- vacuum tank
- electrical heating
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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
- 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
Abstract
The invention discloses a kind of hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing plate is set after vacuum tank, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Vacuum tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and 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 hot mechanism for testing of large bore valves.
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 hot survey of large bore valves of the functional reliability of valve is improved
Test-run a machine structure.
The present invention technical solution be：
A kind of hot mechanism for testing of large bore valves, it is characterized in that：Including with the tank connected vacuum tank of gas storage, after vacuum tank
Pressure testing plate is set, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition
Cavity；Vacuum tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, upper and lower, left and right inside the electrical heating room, it is preceding,
Six faces are respectively provided with electric heater afterwards；Second stop valve, regulating valve are set on appendix, and before the second stop valve is located at regulating valve
Side；Air accumulator is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety is set on vacuum tank
Valve, second pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；Tested valve is with driving tested valve to open
The drive device connection closed.
Application method：Before test, first acted by drive device, tested valve is opened, can completely or partially be opened；Second
Stop valve is closed；Start the electric heater on six faces of up, down, left, right, before and after inside electrical heating room, open the
Two stop valves, compressed air are communicated in composition cavity into vacuum tank, pressure testing plate, tested valve three, and flow velocity is by regulating valve control
To make, the temperature, pressure in cavity rise, after pressure, temperature rise to setting value, stable a period of time；Close the second cut-out
Valve and electrical heating, close and be tested valve, open diffusion valve, observe second pressure sensor, be 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 hot mechanism for testing of large bore valves, including the vacuum tank 5 being connected with air accumulator 1, examination is set after vacuum tank
Pressing plate 6, fills tested valve 7 between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；
Vacuum tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, the up, down, left, right, before and after six inside the electrical heating room
Face is respectively provided with electric heater 8；Second stop valve 9, regulating valve 10 are set on appendix, and before the second stop valve is located at regulating valve
Side；Air accumulator is provided with the first safety valve 11, first pressure sensor 12, the first temperature sensor 13；Is set on vacuum tank
Two safety valves 14, second pressure sensor 15, second temperature sensor 16；Diffusion valve 17 is set on pressure testing plate；Tested valve with
The drive device connection that the tested valve of driving opens and closes.
Air accumulator is connected by the first stop valve 2 with air compression station or air pressure pump, the outlet side of air accumulator by appendix 3 with
Vacuum tank 5 in electrical heating room 4 connects.
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 hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing is set after vacuum tank
Plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Voltage stabilizing
Tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and the face of up, down, left, right, before and after six inside the electrical heating room is equal
Electric heater is set；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Gas storage
Tank is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second are set on vacuum tank
Pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；The driving that tested valve opens and closes with the tested valve of driving
Device connects.
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 hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing is set after vacuum tank
Plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Voltage stabilizing
Tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and the face of up, down, left, right, before and after six inside the electrical heating room is equal
Electric heater is set；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Gas storage
Tank is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second are set on vacuum tank
Pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；The driving that tested valve opens and closes with the tested valve of driving
Device connects.
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 hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing is set after vacuum tank
Plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Voltage stabilizing
Tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and the face of up, down, left, right, before and after six inside the electrical heating room is equal
Electric heater is set；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Gas storage
Tank is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second are set on vacuum tank
Pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；The driving that tested valve opens and closes with the tested valve of driving
Device connects.
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 hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing is set after vacuum tank
Plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Voltage stabilizing
Tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and the face of up, down, left, right, before and after six inside the electrical heating room is equal
Electric heater is set；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Gas storage
Tank is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second are set on vacuum tank
Pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；The driving that tested valve opens and closes with the tested valve of driving
Device connects.
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 hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing is set after vacuum tank
Plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Voltage stabilizing
Tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and the face of up, down, left, right, before and after six inside the electrical heating room is equal
Electric heater is set；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Gas storage
Tank is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second are set on vacuum tank
Pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；The driving that tested valve opens and closes with the tested valve of driving
Device connects.
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 hot mechanism for testing of large bore valves, including with the tank connected vacuum tank of gas storage, pressure testing is set after vacuum tank
Plate, fills tested valve between vacuum tank and pressure testing plate, and vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Voltage stabilizing
Tank, pressure testing plate, tested valve are respectively positioned in electrical heating room, and the face of up, down, left, right, before and after six inside the electrical heating room is equal
Electric heater is set；Second stop valve, regulating valve are set on appendix, and the second stop valve is located in front of regulating valve；Gas storage
Tank is provided with the first safety valve, first pressure sensor, the first temperature sensor；Second safety valve, second are set on vacuum tank
Pressure sensor, second temperature sensor；Diffusion valve is set on pressure testing plate；The driving that tested valve opens and closes with the tested valve of driving
Device connects.
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 the hot mechanism for testing of large bore valves, it is characterized in that：The hot test machine of large bore valves
Structure include with the tank connected vacuum tank of gas storage, pressure testing plate is set after vacuum tank, tested valve is filled between vacuum tank and pressure testing plate, and
Vacuum tank, pressure testing plate, tested valve three communicate composition cavity；Vacuum tank, pressure testing plate, tested valve are respectively positioned on electrical heating room
In, the face of up, down, left, right, before and after six inside the electrical heating room is respectively provided with electric heater；Second is set to cut on appendix
Disconnected valve, regulating valve, and the second stop valve is located in front of regulating valve；Air accumulator be provided with the first safety valve, first pressure sensor,
First temperature sensor；Second safety valve, second pressure sensor, second temperature sensor are set on vacuum tank；On pressure testing plate
Diffusion valve is set；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；Second cut-out
Valve is closed；Start the electric heater on six faces of up, down, left, right, before and after inside electrical heating room, open second and cut
Disconnected valve, compressed air are communicated in composition cavity into vacuum tank, pressure testing plate, tested valve three, and flow velocity is by governor valve control, chamber
Temperature, pressure in body rise, after pressure, temperature rise to setting value, stable a period of time；Close the second stop valve and electricity
Heating, close and be tested valve, open diffusion valve, observe second pressure sensor, be qualified without pressure is fallen.
2. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：If tested valve
Door is the form with two way seal function, then after another side experiment, rotates 180 ° around valve shaft center line, repeat and tested
Journey.
3. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 3-10 electric heater, and electric heater is uniformly distributed.
4. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 3 electric heaters, and electric heater is uniformly distributed.
5. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 5 electric heaters, and electric heater is uniformly distributed.
6. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 8 electric heaters, and electric heater is uniformly distributed.
7. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 9 electric heaters, and electric heater is uniformly distributed.
8. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 10 electric heaters, and electric heater is uniformly distributed.
9. the application method of the hot mechanism for testing of large bore valves according to claim 1, it is characterized in that：In electrical heating room
The face of up, down, left, right, before and after six in portion is respectively provided with 4 electric heaters, and electric heater is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114390.4A CN105738049B (en) | 2016-03-01 | 2016-03-01 | The application method of the hot mechanism for testing of large bore valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114390.4A CN105738049B (en) | 2016-03-01 | 2016-03-01 | The application method of the hot mechanism for testing of large bore valves |
Publications (2)
| Publication Number | Publication Date |
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| CN105738049A CN105738049A (en) | 2016-07-06 |
| CN105738049B true CN105738049B (en) | 2018-04-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112484986B (en) * | 2020-11-17 | 2022-01-04 | 上海昱章电气股份有限公司 | Valve test system |
Citations (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 |
| CN205506318U (en) * | 2016-03-01 | 2016-08-24 | 江苏神通阀门股份有限公司 | Hot accredited testing organization of heavy -calibre valve |
-
2016
- 2016-03-01 CN CN201610114390.4A patent/CN105738049B/en active Active
Patent Citations (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 |
| CN205506318U (en) * | 2016-03-01 | 2016-08-24 | 江苏神通阀门股份有限公司 | Hot accredited testing organization of heavy -calibre valve |
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