CN109387332A - Stripping pattern draft experiment device and method in Liquid valve - Google Patents
Stripping pattern draft experiment device and method in Liquid valve Download PDFInfo
- Publication number
- CN109387332A CN109387332A CN201710674388.7A CN201710674388A CN109387332A CN 109387332 A CN109387332 A CN 109387332A CN 201710674388 A CN201710674388 A CN 201710674388A CN 109387332 A CN109387332 A CN 109387332A
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 238000002474 experimental method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000012360 testing method Methods 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 11
- 238000011160 research Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
Abstract
The present invention relates to stripping pattern draft experiment device and method in a kind of Liquid valve, mainly solve the problems, such as to be difficult to meet in the prior art to leak scenario simulation in the operating conditions lower valves such as different pressures, bore, interior leakage quantity.The present invention is by using leaking imitative experimental appliance in a kind of Liquid valve, including air-compressor set, control valve, level sensor, instrument tank, air accumulator, water tank, flowmeter, tested valve group, air-compressor set is connected at the top of instrument tank, air accumulator, water tank respectively by pipeline, also it is connected simultaneously with gas storage pot bottom, water tank is equipped with back with water inlet line, water storage pot bottom is connected by pipeline with tested valve group entrance and the technical solution of method preferably solves the above problem, can be used in Liquid valve in stripping pattern draft experiment.
Description
Technical field
The present invention relates to stripping pattern draft experiment device and methods in a kind of Liquid valve.
Background technique
Valve is kind of a general engineering goods as the important device of control fluid circuit and petrochemical industry etc. is widely applied
In device.The basic function of valve is the control to medium in pipeline, switches on or off circulation path, changes flow direction,
It reconciles or controls flow or pressure, to protect pipeline safe, guarantee that equipment operates normally.But since valve opening and closing is frequent, make
Dosage is big, or appropriate in time cannot repair, and the phenomenon that run, drip, leak often occurs.Leakage is less susceptible to be sent out in especially
Existing, interior to leak the waste for being likely to result in fluid, for inflammable and explosive medium accident, bring easily occur for system pressure loss
It loses inestimable.Since field working conditions are complicated, test experience can interfere to give birth to researcher in a device in chemical industry equipment operation
It produces, this simulation experiment platform simulates petrochemical equipment valves leakage scene under multi-state, carries out simulating live work convenient for researcher
Condition experiment carries out the research of detection means.
201803832 U of patent CN discloses a kind of experimental rig with acoustic emission signal detection valve leak, including storage
Liquid case, pumping unit, voltage-stablizer, test valve, flow measurement device and sound emission detection sensor, it is described to pump the defeated of unit
Enter end to connect with the liquid reserve tank, the output end for pumping unit is connect with the voltage-stablizer, and described test valve one end passes through defeated
Pipe is sent to connect with voltage-stablizer, the other end is connect by delivery pipe with the entrance of the flow measurement device, the flow measurement dress
The outlet set is connected to liquid reserve tank, and the acoustic emission detection sensor is installed in test valve.The patent solves liquid Jie
Matter valve leak tests problem of modelling, but exist can not quantitative description leakage rate, such as every kind of the simulation slip of operating condition, valve
Door aperture etc., leads to not corresponding with corresponding sound emission signal characteristic, is only capable of being to meet experimental teaching requirement.
102928181 A of patent CN discloses the detection system and its method of a kind of simulation valve generation internal leakage, passes through
The different opening of control valve come simulate valve occur internal leakage state, pass through differential pressure transmitter, flow sensor and sound
Transmitting probe transmits signal, acquires corresponding each group of data by the data acquisition software of rear end.The interior stripping pattern that the invention refers to
Intend device due to gas cylinder tolerance pressure limit, is easy to cause the valve that experimental pressure fluctuates, and can be used for testing in experimentation
Doorway diameter is smaller, it is difficult to meet the simulation of leakage scene in the operating conditions lower valves such as different pressures, bore, interior leakage quantity.
Summary of the invention
The first technical problem to be solved by the present invention is to be difficult to meet different pressures, bore, interior leakage quantity in the prior art
Etc. in operating conditions lower valve the problem of leakage scenario simulation, provide in a kind of new Liquid valve and leak imitative experimental appliance.Device tool
The advantages of can satisfy leakage scenario simulation in the operating conditions lower valves such as different pressures, bore, interior leakage quantity.It is to be solved by this invention
The two of technical problem are to provide one kind and corresponding body valves leakage analogue experiment method one of the technical issues of solution.
One of in order to solve the above problem, The technical solution adopted by the invention is as follows: stripping pattern draft experiment in a kind of Liquid valve
Device, including air-compressor set, control valve, level sensor, instrument tank, air accumulator, water tank, flowmeter, tested valve group, pneumatics
Unit is connected at the top of instrument tank, air accumulator, water tank respectively by pipeline, while being also connected with gas storage pot bottom, water tank
It is equipped with back with water inlet line, water storage pot bottom is connected by pipeline with tested valve group entrance.
In above-mentioned technical proposal, it is preferable that the platform is controlled by programmable logic controller (PLC) (PLC) control system
System.
In above-mentioned technical proposal, it is preferable that control valve is motor-driven valve or pneumatic operated valve.
In above-mentioned technical proposal, it is preferable that the pipeline that air-compressor set is connected with gas storage pot bottom is equipped with valve (10).
In above-mentioned technical proposal, it is preferable that the pipeline that water storage pot bottom is connected with tested valve group entrance is equipped with flowmeter
Group, flowmeter group are made of flowmeter A and two kinds of flowmeter B different range flow meters and preserved pipeline.
In above-mentioned technical proposal, it is preferable that tested valve group by least six meet DN50, DN80, DN100, DN150,
The pipeline and preserved pipeline composition of DN200, DN250 variety classes valve installation, the valve include gate valve, shut-off valve,
Ball valve.
In above-mentioned technical proposal, it is preferable that use soft connection at the measured valve rear end connection blind plate in tested valve group.
In order to solve the above problem two, The technical solution adopted by the invention is as follows: stripping pattern draft experiment in a kind of Liquid valve
Method carries out stripping pattern draft experiment in Liquid valve using imitative experimental appliance is leaked in the Liquid valve, includes the following steps:
(1) punching press is carried out to instrument tank by air-compressor set, after reaching setting pressure, gas storage is carried out to air accumulator, after reaching setting pressure,
Water storage is carried out to water tank, after reaching setting pressure, begins preparing experiment；(2) measured valve two sides are blind plate, and opening needs to survey
The blind plate before and after valve is tried, other are in close state；(3) it is suppressed by air accumulator into water tank, pressure makes liquid enter reality
Pipeline is tested, according to measured flux needs, experimenter adjusts measured valve opening size to simulate the valve under live same operating
Door leak condition；(4) after testing, experiment condition is closed, all valves are opened, liquid and gas in emptying system are closed
Air-compressor set and control computer.
In above-mentioned technical proposal, it is preferable that flowmeter A measurement range is 0-100SLM, and flowmeter B measurement range is 100-
1200SLM meets different valves leakage rate measurement requests, is tested valve group outlet as emptying pipeline.
In above-mentioned technical proposal, it is preferable that experimenter carries out valves leakage inspection using nondestructiving detecting means in step (3)
Experiment is surveyed, the nondestructiving detecting means are acoustic emission detection.
In above-mentioned technical proposal, it is preferable that it is not completed if being tested in experimentation, water tank water reaches low alarm point,
System can generate alarm, close alarm at this time, reopen water storage function, repeat to test after water storage.
According to common petrochemical equipment valves leakage operating condition, different pressures, different bores, leak rate, different valves in difference are simulated
Scene is leaked under the operating conditions such as door type in Liquid valve, leakage in reduction petrochemical equipment scene, is valve convenient for the research of detection means
The important foundation of interior leakage online measuring technique research.The present invention provides a kind of interior leakage simulation experiment platform of Liquid valve, can be with mould
Quasi- different pressures, different bore valves, different type valve, leakage in the working conditions lower valve such as leak rate in difference, are in valve
Leak detection research provides experiment porch.Valves leakage sufficiently under each operating condition in simulation petrochemical industry scene, the large-scale simulation dress established
Simulated experiment condition can be provided to create the foundation of valves leakage Test database by setting, and achieve preferable technical effect.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for the invention.
In Fig. 1,1~3,10 for valve,；4, air-compressor set；5, it is tested valve group；6, back with water inlet line；7, flowmeter A；8, flow
Count B；9 be outlet；V11001 is air accumulator；V11002 is water tank；V11003 is instrument tank.
The present invention will be further described below by way of examples, but is not limited only to the present embodiment.
Specific embodiment
[embodiment 1]
Stripping pattern draft experiment device and method in a kind of Liquid valve, as shown in Figure 1, by air compressor machine to instrument tank V11003 into
Row punching press after reaching setting pressure, carries out gas storage to air accumulator V11001 surge tank, after reaching setting pressure, by back with water inlet line 6
Liquid storage is carried out to water tank V11002, after reaching setting pressure, begins preparing experiment.Tested valve group 5 by six meet DN50,
DN80, DN100, DN150, DN200, DN250 variety classes valve (gate valve, shut-off valve, ball valve etc.) installation pipeline and one
Preserved pipeline composition, valve group two sides are blind plate, and when carrying out valves leakage test experiments, opening needs to test pipeline blind plate,
He is in close state, and valve rear end, which connects, uses soft connection at blind plate, convenient for replacing valve and meets other desired valves
Door pipeline modification, flowmeter group are made of flowmeter A and two kinds of flowmeter B different range flow meters and preserved pipeline, flowmeter A
Measurement range is 0-100SLM, and flowmeter B measurement range is 100-1200SLM, meets different valves leakage rate measurement requests, is surveyed
Trying platform rear end is emptying pipeline.
Experiment porch is controlled using PLC control system, is controlled by Central Control Room computer, and computer opens control program, by valve
It is set to off closed state, valve 1 is opened, V11003 instrument tank is inflated, after reaching setting pressure, system is automatically stopped storage
V11001 gas storage pressure is arranged in gas, and to its gas storage, system closes other valves and opens valve 10, after gas storage, to water tank
V11002 carries out water storage, has level sensor in water tank, is equipped with low liquid level and high liquid level warning function, and water storage reaches high liquid level
Inlet valve is automatically closed in system after alarm point, after the completion of preparing operating condition, starts to carry out experiment condition.
Experimenter selects tested valve group route, sets blind plate according to experiment needs, selects measured valve type, setting
Experimental pressure and flowmeter, system open experiment route valve, close other valves, are suppressed by air accumulator into water tank, pressure
Power makes liquid enter experiment pipeline, and according to measured flux needs, experimenter adjusts measured valve opening size with the scene of simulating
Valve leak state under same operating, at this point, experimenter can carry out using nondestructiving detecting means (acoustic emission detection etc.)
Valves leakage test experience.It is not completed if being tested in experimentation, water tank water reaches low alarm point, and system can generate report
It is alert, alarm is closed at this time, is reopened water storage function, is repeated to test after water storage.
After experiment, experiment condition is closed, all motor-driven valves and pneumatic operated valve are opened, liquid and gas in emptying system,
Close air-compressor set and computer.
[embodiment 2]
Stripping pattern draft experiment device and method in a kind of Liquid valve, as shown in Figure 1, by air compressor machine to instrument tank V11003 into
Row punching press after reaching setting pressure, carries out gas storage to air accumulator V11001 surge tank, after reaching setting pressure, by back with water inlet line 6
Liquid storage is carried out to water tank V11002, after reaching setting pressure, begins preparing experiment.Tested valve group 5 by 7 meet DN50,
The pipeline of DN80, DN100, DN150, DN200, DN250, DN300 variety classes valve (gate valve, shut-off valve, ball valve etc.) installation
And a preserved pipeline composition, valve group two sides are blind plate, and when carrying out valves leakage test experiments, opening needs to test pipeline blind
Plate, other are in close state, and valve rear end, which connects, uses soft connection at blind plate, convenient for replacing valve and meet other requirements
Valve pipe transformation, flowmeter group is made of the different range flow meters of flowmeter A and two kinds of flowmeter B and preserved pipeline, flows
Meter A measurement range is 0-100SLM, and flowmeter B measurement range is 100-1200SLM, meets different valves leakage rate measurements and wants
It asks, test platform rear end is emptying pipeline.
Experiment porch is controlled using PLC control system, is controlled by Central Control Room computer, and computer opens control program, by valve
It is set to off closed state, valve 1 is opened, V11003 instrument tank is inflated, after reaching setting pressure, system is automatically stopped storage
V11001 gas storage pressure is arranged in gas, and to its gas storage, system closes other valves and opens valve 10, after gas storage, to water tank
V11002 carries out water storage, has level sensor in water tank, is equipped with low liquid level and high liquid level warning function, and water storage reaches high liquid level
Inlet valve is automatically closed in system after alarm point, after the completion of preparing operating condition, starts to carry out experiment condition.
Experimenter selects tested valve group route, sets blind plate according to experiment needs, selects measured valve type, setting
Experimental pressure and flowmeter, system open experiment route valve, close other valves, are suppressed by air accumulator into water tank, pressure
Power makes liquid enter experiment pipeline, and according to measured flux needs, experimenter adjusts measured valve opening size with the scene of simulating
Valve leak state under same operating, at this point, experimenter can carry out using nondestructiving detecting means (acoustic emission detection etc.)
Valves leakage test experience.It is not completed if being tested in experimentation, water tank water reaches low alarm point, and system can generate report
It is alert, alarm is closed at this time, is reopened water storage function, is repeated to test after water storage.
After experiment, experiment condition is closed, all motor-driven valves and pneumatic operated valve are opened, liquid and gas in emptying system,
Close air-compressor set and computer.
The simulator being made of air accumulator, fluid reservoir etc., flask volume is with the obvious advantage in experiment stage arrangement, meets real
Test pressure and liquid flowing stability and prolonged duration.Device has gas valve interlocking and liquid level warning function etc.,
Security level is high, avoids superpressure bring device and personal injury and the excessively high bring experiment of liquid level difficult.Sufficiently simulation petrochemical industry
Valves leakage under each operating condition in scene, the large-scale simulator established can be the foundation of creation valves leakage Test database
Simulated experiment condition is provided.
Claims (10)
1. leaking imitative experimental appliance, including air-compressor set, control valve, level sensor, instrument tank, gas storage in a kind of Liquid valve
Tank, water tank, flowmeter, tested valve group, air-compressor set are connected at the top of instrument tank, air accumulator, water tank respectively by pipeline,
Also it is connected simultaneously with gas storage pot bottom, water tank is equipped with back with water inlet line, and water storage pot bottom passes through pipeline and tested valve group entrance
It is connected.
2. imitative experimental appliance is leaked in Liquid valve according to claim 1, it is characterised in that the experimental provision is controlled by PLC
System processed is controlled.
3. imitative experimental appliance is leaked in Liquid valve according to claim 1, it is characterised in that control valve be motor-driven valve or
Pneumatic operated valve.
4. imitative experimental appliance is leaked in Liquid valve according to claim 1, it is characterised in that air-compressor set and air accumulator bottom
The connected pipeline in portion is equipped with valve (10).
5. imitative experimental appliance is leaked in Liquid valve according to claim 1, it is characterised in that water storage pot bottom and tested valve
The connected pipeline of group entrance is equipped with flowmeter group, flowmeter group by flowmeter A and two kinds of flowmeter B different range flow meters and
Preserved pipeline composition.
6. imitative experimental appliance is leaked in Liquid valve according to claim 1, it is characterised in that be tested valve group by least six
Meet the pipeline and a preserved pipeline group of the installation of DN50, DN80, DN100, DN150, DN200, DN250 variety classes valve
At the valve includes gate valve, shut-off valve, ball valve；Soft company is used at measured valve rear end connection blind plate in tested valve group
It connects.
7. leaking analogue experiment method in a kind of Liquid valve, filled using stripping pattern draft experiment in Liquid valve described in claim 1
It sets and carries out stripping pattern draft experiment in Liquid valve, include the following steps: that (1) carries out punching press to instrument tank by air-compressor set, reach and set
After constant-pressure, gas storage is carried out to air accumulator, after reaching setting pressure, water storage is carried out to water tank, after reaching setting pressure, is started
Preparing experiment；(2) measured valve two sides are blind plate, open the blind plate needed before and after test valve, other are in close state；
(3) it is suppressed by air accumulator into water tank, pressure makes liquid enter experiment pipeline, according to measured flux needs, experimenter's tune
Measured valve opening size is saved to simulate the valve leak state under live same operating；(4) after testing, experiment work is closed
Condition opens all valves, liquid and gas in emptying system, closes air-compressor set and control computer.
8. analogue experiment method is leaked in Liquid valve according to claim 7, it is characterised in that flowmeter A measurement range is 0-
100SLM, flowmeter B measurement range are 100-1200SLM, meet different valves leakage rate measurement requests, and tested valve group outlet is
Empty pipeline.
9. analogue experiment method is leaked in Liquid valve according to claim 7, it is characterised in that experimenter answers in step (3)
Valves leakage test experience is carried out with nondestructiving detecting means, the nondestructiving detecting means are acoustic emission detection.
10. analogue experiment method is leaked in Liquid valve according to claim 7, it is characterised in that if experiment is not in experimentation
It completes, water tank water reaches low alarm point, and system can generate alarm, closes alarm at this time, reopens water storage function, water storage
After repeat test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674388.7A CN109387332A (en) | 2017-08-09 | 2017-08-09 | Stripping pattern draft experiment device and method in Liquid valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674388.7A CN109387332A (en) | 2017-08-09 | 2017-08-09 | Stripping pattern draft experiment device and method in Liquid valve |
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| Publication Number | Publication Date |
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| CN109387332A true CN109387332A (en) | 2019-02-26 |
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|---|---|---|---|
| CN201710674388.7A Pending CN109387332A (en) | 2017-08-09 | 2017-08-09 | Stripping pattern draft experiment device and method in Liquid valve |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212222A (en) * | 2020-09-09 | 2021-01-12 | 黄腾飞 | Method and system for detecting pipeline leakage |
| CN112484986A (en) * | 2020-11-17 | 2021-03-12 | 上海昱章电气成套设备有限公司 | Valve test system |
| CN112576936A (en) * | 2019-09-30 | 2021-03-30 | 上海睿耳海洋工程技术有限公司 | Test system and method for simulating leakage of high-pressure pipeline |
| CN112728420A (en) * | 2020-12-11 | 2021-04-30 | 张思祖 | Method and structure for automatically monitoring internal leakage of valve in boundary area of oil refining device |
| CN112781860A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | Gas-liquid two-phase simulation test device and method for valve internal leakage |
| CN112781792A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | Valve internal leakage simulation test device and method |
| CN112924115A (en) * | 2021-03-16 | 2021-06-08 | 中电华创(苏州)电力技术研究有限公司 | Device and method for monitoring internal leakage of high-temperature and high-pressure pipeline valve |
| CN116593144A (en) * | 2023-05-17 | 2023-08-15 | 四川大学 | Forced seal ball valve life test bed based on acoustic emission technology |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576936A (en) * | 2019-09-30 | 2021-03-30 | 上海睿耳海洋工程技术有限公司 | Test system and method for simulating leakage of high-pressure pipeline |
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| CN112728420A (en) * | 2020-12-11 | 2021-04-30 | 张思祖 | Method and structure for automatically monitoring internal leakage of valve in boundary area of oil refining device |
| CN112924115A (en) * | 2021-03-16 | 2021-06-08 | 中电华创(苏州)电力技术研究有限公司 | Device and method for monitoring internal leakage of high-temperature and high-pressure pipeline valve |
| CN116593144A (en) * | 2023-05-17 | 2023-08-15 | 四川大学 | Forced seal ball valve life test bed based on acoustic emission technology |
| CN116593144B (en) * | 2023-05-17 | 2024-02-02 | 四川大学 | Detection method for forced sealing ball valve life test bed |
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Application publication date: 20190226 |