CN2821558Y - Pressure release valve test device for transformer - Google Patents
Pressure release valve test device for transformer Download PDFInfo
- Publication number
- CN2821558Y CN2821558Y CN 200520089842 CN200520089842U CN2821558Y CN 2821558 Y CN2821558 Y CN 2821558Y CN 200520089842 CN200520089842 CN 200520089842 CN 200520089842 U CN200520089842 U CN 200520089842U CN 2821558 Y CN2821558 Y CN 2821558Y
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- CN
- China
- Prior art keywords
- pressure
- jar
- valve
- test tank
- compressed air
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a test device for a pressure release valve of a transformer, which is suitable for testing the opening pressure, the closing pressure, the aging opening pressure, the opening time, the sealing performance of a sealing pressure value, etc. of the pressure release valve of the transformer. The utility model comprises a compressed air source, test tanks, an installing flange or a clamp, a pressure sensor, etc. The utility model is characterized in that one end of the big test tank is connected with a middle test tank by a valve in a sealing way; the upper part of the middle test tank is spaced with a small test tank by a valve plate, the upper end of which is provided with the clamp or the flange which is used for installing the pressure release valve which is to be tested; the pressure sensor is arranged on the small test tank. The middle test tank is connected with the compressed air source through an air valve, and the small test tank is connected with the compressed air source through a speed regulating valve and an air valve. The other end of the big test tank is connected with a leak test tank through a pipeline. A pressure signal outgoing line of the pressure sensor is connected with a controller of a microcomputer. The utility model has the characteristics of small occupation area, high measuring precision, time saving, labor saving, easy realization of automatic measurement, automatic printing, remote operation, etc.
Description
Technical field
The utility model relates to the testing apparatus of the pressure relief valve of transformer special use, is applicable to the routine test project of industry standards such as the sealing property regulation of the transformer opening pressure of pressure relief valve, closing presure, timeliness opening pressure, opening time, sealing load value.
Background technology
At present, China is to the routine testing equipment of the pressure relief valve of transformer special use, be that each is finished with independent testing equipment to its each pilot project according to the regulation of industry standard " transformer pressure relief valve JB/T7065-2003 " and " transformer is tested guide rule JB/T7069-2003 with pressure relief valve ".With Φ 80 and Φ 130 pressure relief valves is that the testing equipment of example has: 1, the opening pressure testing equipment is equipped with anchor clamps or flange by 0～0.1MPa tensimeter, top and is provided with three tuyeres and pressure test jar that volume is 60 liters etc. is formed; 2, the closing presure testing equipment is equipped with anchor clamps or flange by 0～0.1MPa tensimeter, top and is provided with three tuyeres and pressure test jar that volume is 150 liters etc. is formed; 3, the opening time testing equipment is made up of 8 liters examination jar and tensimeter, vacuum meter, tuyere and pressure transducer etc.; 4, the sealing load testing equipment is made up of examination jar, tensimeter, needle-valve and rollover stand etc.; 5, timeliness unlatching testing equipment is that 60 liters of examination jars, tensimeter and anchor clamps etc. are formed by three tuyeres and volume.
From the above-mentioned technical problem underlying of being not difficult to find out that prior art exists: 1, testing equipment is more, floor area is big; 2, repeatedly the carrying, the clamping identical product, time-consuming, the effort; 3, use gauge measurement pressure, artificial reading, error is big; 4, be unfavorable for measuring automatically and remote-controlled operation.
Summary of the invention
The utility model is for solving the technical matters that exists in the prior art, pilot projects such as opening pressure, closing presure, opening time, sealing load, timeliness opening pressure can be on an equipment, carried out and provide, and the transformer pressure relief valve testing apparatus of test report can be easy to measure and print automatically.
The technical solution adopted in the utility model is: comprise compressed air source, examination jar, anchor clamps or flange, pressure transducer etc.Its special character is: the end at a big examination jar connects a pilot scale jar with valve seal, top at the pilot scale jar is separated out a lab scale jar with a valve plate, on the lab scale jar, pressure transducer is housed, the pilot scale jar is connected with compressed air source through air valve, and the lab scale jar is connected with compressed air source with another air valve through flow speed control valve; The other end at big examination jar is connected with the leak test jar by the road; The pressure signal outlet of pressure transducer is connected with the microcomputerized controller of employing.
The utility model beneficial effect compared with the prior art is:
1, since the utility model be provided with big examination jar, pilot scale jar, lab scale jar, leak test jar and accordingly composition one bench teat such as pipe system such as valve, air valve, flow speed control valve and pressure transducer test equipment, substituted many bench teats such as the opening pressure testing equipment in the prior art, closing presure testing equipment, opening time testing equipment, unlatching ag(e)ing test equipment, experiments of sealing performance equipment and tested the pilot project that equipment is finished, so floor area is little.
Therefore 2, because multiple test concentrates on the equipment, reduced the carrying and the clamping times of test specimen in the prior art, saved time, laborsaving.
3, owing to having cancelled the tensimeter in the prior art, only having adopted a pressure transducer also can be connected with microcomputerized controller, it is big and be unfavorable for measuring automatically and deficiencies such as printing automatically to have overcome in the prior art measuring error, therefore the measuring accuracy height is easy to measure automatically and print.
Description of drawings
Accompanying drawing is the utility model example structure synoptic diagram.
Among the figure: 1, big examination jar, 2, valve, 3, the pilot scale jar, 4, air valve, 5, compressed air source, 6, flow speed control valve, 7, lab scale jar, 8, valve plate, 9, anchor clamps or flange, 10, pressure relief valve, 11, microcomputerized controller, 12, the pressure signal outlet, 13, pressure transducer, 14, safety valve, 15, the leak test jar.
Embodiment
With reference to accompanying drawing.The utility model comprises compressed air source 5, examination jar, anchor clamps or flange 9, pressure transducer 13 etc.Its architectural feature is: at an end of a big examination jar 1 valve 2 sealed attachment one pilot scale jar 3, top at pilot scale jar 3 is separated out a lab scale jar 7 with valve plate 8, anchor clamps or the flange 9 that tested pressure relief valve 10 is installed is housed in the upper end of lab scale jar 7, pressure transducer 13 also is housed on lab scale jar 7, pilot scale jar 3 is connected with compressed air source 5 through air valve 4, and lab scale jar 7 is connected with compressed air source 5 with another air valve 4 through flow speed control valve 6.The other end of big examination jar 1 is connected with leak test jar 15 by the road.The pressure signal outlet 12 of pressure transducer 13 is connected with the microcomputerized controller 11 that adopts.
The volume of big examination jar 1 can be made as 90 liters, and the volume of pilot scale jar 3 can be made as 60 liters, and the volume of lab scale jar 7 can be made as 1.6 liters.
Principle of work of the present utility model is:
1, timeliness opening pressure test
The air valve 4 that valve-off 2 and lab scale jar 7 and compressed air source are 5, open pilot scale jar 3 valve plate 8 to the air valve 4 of 5 of compressed air sources and the lab scale jar 7, the pressurized air of microcomputerized controller 11 control compressed air sources 5 enters pilot scale jar 3 and lab scale jar 7, compressed-air actuated pressure acts on the pressure relief valve 11, and pressure relief valve 11 is opened.The force value signal of pressure transducer 13 reaches in the microcomputerized controller 11 through pressure signal outlet 12 simultaneously, and can write down and print.
2, opening pressure test
It is basic identical that opening pressure test of the present utility model and above-mentioned timeliness opening pressure are tested residing state.When just the opening pressure of the tested pressure relief valve 10 that records of microcomputerized controller 11 decidables that adopted is qualified, can do ten tests continuously, and record automatically, if defective, automatic stand-by.
3, closing presure test
This test is after test of timeliness opening pressure and opening pressure stand the test, under above-mentioned residing state, opens valve 2, and this moment, the total measurement (volume) of jar was about 150 liters, promptly big examination jar 1, pilot scale jar 3 and lab scale jar 7 volume sums.At this moment, pressurized air by microcomputerized controller 11 control compressed air sources 5 enters in big examination jar 1, pilot scale jar 3 and the lab scale jar 7, after pressure relief valve is opened, cut off compressed air source 5 rapidly, the force value signal that pressure transducer 13 records, be transferred in the microcomputerized controller through pressure signal outlet 12, and can write down and print.
4, opening time test
Close the air valve 4 of 5 of pilot scale jar 3 and compressed air sources, valve plate 8 is in closed condition, and the volume that forms lab scale jar 7 is 1.6 liters.Open another air valve 4 of 7 in compressed air source 5 and lab scale jar, and conciliation flow speed control valve 6 obtains different pressure gradients.At this moment, import pressurized air by microcomputerized controller 11 control compressed air sources 5 to lab scale jar 7.When pressure relief valve is opened, the force value signal that pressure transducer 13 records, be transferred in the microcomputerized controller 11 through pressure signal outlet 12, the force value of pressure relief valve 10 opening processes is change curve in time, can write down on microcomputerized controller 11 and print.
5, the experiments of sealing performance of sealing load value
Tested pressure relief valve 10 is contained on the leak test jar 15, and leak test jar 15 is rotated 180 °.Compressed air source 5 is inflated in leak test jar 15, stops inflation when reaching normal pressure.Whether observed pressure relief valve 10 seepage.Simultaneously certified products are imported in the microcomputerized controller 11, can on microcomputerized controller 11, be write down and print.
Claims (3)
1, transformer pressure relief valve testing apparatus, comprise compressed air source, examination jar, anchor clamps or flange and pressure transducer, it is characterized in that: the end at a big examination jar connects a pilot scale jar with valve seal, top at the pilot scale jar is separated out a lab scale jar with a valve plate, pressure transducer also is housed on the lab scale jar, the pilot scale jar is connected with compressed air source through air valve, and the lab scale jar is connected with compressed air source with another air valve through flow speed control valve.
2, transformer according to claim 1 pressure relief valve testing apparatus is characterized in that: the end at big examination jar is connected with the leak test jar by the road.
3, transformer according to claim 1 and 2 pressure relief valve testing apparatus is characterized in that: the pressure signal outlet of pressure transducer is connected with the microcomputerized controller of employing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089842 CN2821558Y (en) | 2005-03-25 | 2005-03-25 | Pressure release valve test device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089842 CN2821558Y (en) | 2005-03-25 | 2005-03-25 | Pressure release valve test device for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821558Y true CN2821558Y (en) | 2006-09-27 |
Family
ID=37018112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520089842 Expired - Fee Related CN2821558Y (en) | 2005-03-25 | 2005-03-25 | Pressure release valve test device for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821558Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725833B (en) * | 2009-12-02 | 2013-03-06 | 中国广东核电集团有限公司 | Compressed air distribution system for instrument and on-line isolation method for compressed air tank thereof |
| CN103162897A (en) * | 2013-03-26 | 2013-06-19 | 国家电网公司 | Pressure relief valve checking device |
| CN103336242A (en) * | 2013-06-24 | 2013-10-02 | 国家电网公司 | Quick operating relay calibration method for transformer |
| CN105806606A (en) * | 2016-03-24 | 2016-07-27 | 国网辽宁省电力有限公司电力科学研究院 | Pressure relief valve calibration system |
| CN110160773A (en) * | 2019-04-26 | 2019-08-23 | 云南电网有限责任公司电力科学研究院 | A kind of pressure relief valve detection device and its detection method |
-
2005
- 2005-03-25 CN CN 200520089842 patent/CN2821558Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725833B (en) * | 2009-12-02 | 2013-03-06 | 中国广东核电集团有限公司 | Compressed air distribution system for instrument and on-line isolation method for compressed air tank thereof |
| CN103162897A (en) * | 2013-03-26 | 2013-06-19 | 国家电网公司 | Pressure relief valve checking device |
| CN103336242A (en) * | 2013-06-24 | 2013-10-02 | 国家电网公司 | Quick operating relay calibration method for transformer |
| CN105806606A (en) * | 2016-03-24 | 2016-07-27 | 国网辽宁省电力有限公司电力科学研究院 | Pressure relief valve calibration system |
| CN110160773A (en) * | 2019-04-26 | 2019-08-23 | 云南电网有限责任公司电力科学研究院 | A kind of pressure relief valve detection device and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20100325 |