CN114061937B - Pilot operated safety valve shunt action test device - Google Patents
Pilot operated safety valve shunt action test device Download PDFInfo
- Publication number
- CN114061937B CN114061937B CN202111191810.6A CN202111191810A CN114061937B CN 114061937 B CN114061937 B CN 114061937B CN 202111191810 A CN202111191810 A CN 202111191810A CN 114061937 B CN114061937 B CN 114061937B
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- CN
- China
- Prior art keywords
- test
- pressure
- data display
- inlet
- displacement sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008676 import Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Safety Valves (AREA)
Abstract
The invention belongs to the field of nuclear power, and particularly relates to a pilot-operated safety valve shunt action test device. Including base and support, the support is established on the base, test bolt is connected with the top of support, test bolt's lower part compresses tightly pressure/displacement sensor, pressure/displacement sensor's lower part is equipped with two way shunts, two way shunts are installed on the test piece, the test piece provides the runner for two way shunts, inlet line and outlet line link to each other with the test piece respectively, the test piece is installed on the base, outlet line connects outlet pressure transmitter, outlet pressure transmitter connects data display, inlet line connects test device and inlet pressure transmitter respectively, inlet pressure transmission connects data display, pressure/displacement sensor are connected to data display. The beneficial effects are that: the opening force and displacement of the two paths of flow splitters of the pilot-operated safety valve can be effectively measured, the performance of the sealing element is verified, the sealing element is compared with original spare parts, and the effect of the spare parts is evaluated.
Description
Technical Field
The invention belongs to the field of nuclear power, and particularly relates to a pilot-operated safety valve shunt action test device.
Background
The pressure stabilizer safety valve is used as a loop pressure boundary of a pressurized water reactor nuclear power plant, has an important function for sealing main coolant and preventing system overpressure, the switch control of the valve mainly depends on a control cabinet, the most important and precise part of the control cabinet is a two-way shunt, and the release of pressure or the establishment of pressure is realized through the switch of the two-way shunt, so that the reliable action of the pressure stabilizer safety valve belongs to the loop boundary, directly relates to the switch of the valve, and has an important function for the safety of a loop.
The two-way flow divider is closed by virtue of a small spring, the establishment of sealing force is mainly based on the high-pressure of the system, and the opening of the two-way flow divider is based on external force to overcome the friction force of the small spring and an O-shaped ring and the high-pressure of the system, so that the opening force and the stroke required by opening are required to be measured.
At present, the main overhaul mode is to directly replace the whole spare parts of the two-way current divider. Replacement of the seal ring requires re-verification of the reliable opening and closing of the two-way shunt. The device calculates the difference between the opening force and the original spare part by measuring the opening force and the stroke respectively, and judges the effectiveness of the sealing part.
Disclosure of Invention
The invention aims to provide a pilot-operated safety valve shunt action test device which can measure the opening force and the stroke of a two-way shunt provided with an O-shaped ring seal aiming at the two-way shunt of a pilot-operated safety valve.
The technical scheme of the invention is as follows: the utility model provides a pilot operated relief valve shunt action test device, including base and support, the support is established on the base, test bolt is connected with the top of support, test bolt's lower part compresses tightly pressure/displacement sensor, pressure/displacement sensor's lower part is equipped with two way shunts, two way shunts are installed on the test piece, the test piece provides the runner for two way shunts, inlet line and outlet line link to each other with the test piece respectively, the test piece is installed on the base, outlet line connects outlet pressure transmitter, outlet pressure transmitter connects data display, inlet line connects test device and inlet pressure transmitter respectively, data display is connected in the inlet pressure transmission, pressure/displacement sensor are connected to data display.
The bracket is mounted on the base through bolts and nuts.
The test bolt is connected with the top of the bracket through threads.
The two paths of current splitters are mounted to the test block through socket head cap bolts.
The inlet pipeline and the outlet pipeline are respectively connected with the test block through threads.
The test block, the two paths of flow splitters and the pressure/displacement sensor are all positioned in a space formed between the bracket and the base.
The outlet pressure transmitter is connected with the data display through a third wire.
The inlet pipeline is respectively connected with the test device and the inlet pressure transmitter through the quick connector.
The inlet pressure transmitter is connected with the data display through a second lead.
The data display is connected with the pressure/displacement sensor through a first lead.
The invention has the beneficial effects that: the opening force and displacement of the important parts of the pilot-operated safety valve, namely the two-way flow divider, can be effectively measured, the performance of the sealing element on the parts is verified, the sealing element is compared with original spare parts, and the effect of the spare parts is evaluated.
Drawings
Fig. 1 is a schematic structural diagram of a pilot-operated safety valve diverter action test device provided by the invention.
In the figure: 1 base, 2 support, 3 test block, 4 two way shunts, 5 test bolt, 6 pressure/displacement sensor, 7 first wire, 8 import pipeline, 9 test device, 10 import pressure transmitter, 11 second wire, 12 data display, 13 third wire, 14 export pressure transmitter, 15 export pipeline.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
A pilot-operated safety valve shunt action test device comprises a base 1, a support 2, a test block 3, two-way shunts 4, a test bolt 5, a pressure/displacement sensor 6, a first lead 7, an inlet pipeline 8, a test device 9, an inlet pressure transmitter 10, a second lead 11, a data display 12, a third lead 13, an outlet pressure transmitter 14 and an outlet pipeline 15.
As shown in fig. 1, the bracket 2 is mounted on the base 1 through bolts and nuts, the test bolt 5 is connected with the top of the bracket 2 through threads, and the test bolt 5 provides a force for opening the two-way diverter 4. The test bolt 5 presses the pressure/displacement sensor 6, measures the pressing force or displacement of the test bolt 5, and transmits data to the data display 12. The lower part of the pressure/displacement sensor 6 is provided with two paths of flow splitters 4, the two paths of flow splitters 4 are mounted to the test block 3 through 4 hexagon socket head cap screws, the test block 3 provides a flow passage for the two paths of flow splitters 4, and an inlet pipeline 8 and an outlet pipeline 15 are respectively connected with the test block 3 through threads. The test block 3 is arranged on the base 1, the test block 3, the two paths of shunts 4 and the pressure/displacement sensor 6 are all positioned in a space formed between the support 2 and the base 1, an outlet pipeline 15 is connected with an outlet pressure transmitter 14 through a quick connector, the outlet pressure transmitter 14 is connected with a data display 12 through a third wire 13, an inlet pipeline 8 is respectively connected with the test device 9 and an inlet pressure transmitter 10 through a quick connector, the inlet pressure transmitter 10 is connected with the data display 12 through a second wire 11, and the data display 12 is connected with the pressure/displacement sensor 6 through a first wire 7.
Inlet pressure transmitter 10 and outlet pressure transmitter 14 test the pressure before and after two-way diverter 4, respectively, and transmit the data to data display 12 via wires.
The test device 9 is used for testing the build-up pressure.
Data display 12 receives signals from pressure/displacement sensor 6, inlet pressure transmitter 10 and outlet pressure transmitter 14 and forms a curve for analysis.
The application process of the invention is as follows:
(1) Parts such as a test device, two paths of shunts and the like are installed, so that the pressure transmitter and the sensor can be used;
(2) The test device 9 is used for boosting the pressure of the test block 3 and the two-way flow divider 4 to 10bar, at the moment, the two-way flow divider 4 is closed, the inlet pressure transmitter 10 displays the test pressure of 10bar, and the outlet pressure transmitter 14 displays the pressure of 0bar;
(3) Adjusting the zero point of the test bolt 5 and the pressure/displacement sensor 6;
(4) Slowly rotating the test bolt 5, continuously pressing down the two paths of shunts 4, and observing the pressure of an inlet and an outlet;
(5) When the outlet pressure suddenly rises and reaches the maximum value, the inlet pressure is reduced at the same time, the test bolt 5 is reversely slowly rotated, and the test is stopped when the inlet pressure rises to be close to 10 bar;
(6) And obtaining the curves of inlet and outlet pressure, the pressure sensor 6 and time on a data display to obtain the opening and closing force values of the two paths of flow dividers.
(7) Repeating the steps (2) - (6), and raising the test pressure by 10bar until 170bar in each test.
(8) Finally forming curves of opening forces of the two paths of current splitters under different pressures, placing the test curves of the original spare parts in the same graph, and comparing the performances of the two paths of current splitters;
(9) The pressure/displacement sensor 6 is replaced by a displacement sensor, and the opening and closing displacement values of the two-way flow divider are measured.
Claims (1)
1. A pilot operated safety valve shunt action test device is characterized in that: the test device comprises a base and a support, wherein the support is arranged on the base, a test bolt is connected with the top of the support, the lower part of the test bolt compresses a pressure/displacement sensor, the lower part of the pressure/displacement sensor is provided with two paths of flow splitters, the two paths of flow splitters are arranged on a test block, the test block provides flow channels for the two paths of flow splitters, an inlet pipeline and an outlet pipeline are respectively connected with the test block, the test block is arranged on the base, the outlet pipeline is connected with an outlet pressure transmitter, the outlet pressure transmitter is connected with a data display, the inlet pipeline is respectively connected with a test device and an inlet pressure transmitter, the inlet pressure transmitter is connected with a data display, and the data display is connected with the pressure/displacement sensor;
The bracket is mounted on the base through bolts and nuts;
the test bolt is connected with the top of the bracket through threads;
the two paths of current splitters are mounted to the test block through inner hexagon bolts;
The inlet pipeline and the outlet pipeline are respectively connected with the test block through threads;
the test block, the two paths of current splitters and the pressure/displacement sensor are all positioned in a space formed between the bracket and the base;
The outlet pressure transmitter is connected with the data display through a third lead;
The inlet pipeline is respectively connected with the test device and the inlet pressure transmitter through the quick connector;
The inlet pressure transmitter is connected with the data display through a second lead;
the data display is connected with the pressure/displacement sensor through a first lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191810.6A CN114061937B (en) | 2021-10-13 | 2021-10-13 | Pilot operated safety valve shunt action test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191810.6A CN114061937B (en) | 2021-10-13 | 2021-10-13 | Pilot operated safety valve shunt action test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114061937A CN114061937A (en) | 2022-02-18 |
| CN114061937B true CN114061937B (en) | 2024-06-11 |
Family
ID=80234331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111191810.6A Active CN114061937B (en) | 2021-10-13 | 2021-10-13 | Pilot operated safety valve shunt action test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114061937B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027181A1 (en) * | 2000-05-31 | 2001-12-06 | Siemens Ag | Method to determine valve seat diameter of injection valve; involves loading valve needle with defined closing force and measuring test oil pressure that generates opening force on pressure surface |
| CN101329224A (en) * | 2008-07-21 | 2008-12-24 | 江南大学 | Safety valve checking method |
| CN103344552A (en) * | 2013-06-27 | 2013-10-09 | 中国新兴建设开发总公司 | Laboratory measuring system and method for pump concrete flow divider |
| CN205719497U (en) * | 2016-04-05 | 2016-11-23 | 杭州市特种设备检测研究院 | A kind of relief valve performance test and on-line testing instrument calibration equipment |
| CN107421728A (en) * | 2017-07-03 | 2017-12-01 | 泰安市特种设备检验研究院 | A kind of safety valve and quick action emergency valve comprehensive calibration device and its method of calibration |
| CN207019886U (en) * | 2017-07-11 | 2018-02-16 | 江南大学 | Safety valve online monitoring system |
-
2021
- 2021-10-13 CN CN202111191810.6A patent/CN114061937B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027181A1 (en) * | 2000-05-31 | 2001-12-06 | Siemens Ag | Method to determine valve seat diameter of injection valve; involves loading valve needle with defined closing force and measuring test oil pressure that generates opening force on pressure surface |
| CN101329224A (en) * | 2008-07-21 | 2008-12-24 | 江南大学 | Safety valve checking method |
| CN103344552A (en) * | 2013-06-27 | 2013-10-09 | 中国新兴建设开发总公司 | Laboratory measuring system and method for pump concrete flow divider |
| CN205719497U (en) * | 2016-04-05 | 2016-11-23 | 杭州市特种设备检测研究院 | A kind of relief valve performance test and on-line testing instrument calibration equipment |
| CN107421728A (en) * | 2017-07-03 | 2017-12-01 | 泰安市特种设备检验研究院 | A kind of safety valve and quick action emergency valve comprehensive calibration device and its method of calibration |
| CN207019886U (en) * | 2017-07-11 | 2018-02-16 | 江南大学 | Safety valve online monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 安全阀在线校验测量技术优化及精度研究;张茂力;朱海清;费宏伟;;流体机械;20180630(06);全文 * |
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| Publication number | Publication date |
|---|---|
| CN114061937A (en) | 2022-02-18 |
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