CN102890238B - The detection method of mutation pressure relay - Google Patents
The detection method of mutation pressure relay Download PDFInfo
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- CN102890238B CN102890238B CN201210378270.7A CN201210378270A CN102890238B CN 102890238 B CN102890238 B CN 102890238B CN 201210378270 A CN201210378270 A CN 201210378270A CN 102890238 B CN102890238 B CN 102890238B
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- 230000035772 mutation Effects 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 206010008469 Chest discomfort Diseases 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000011160 research Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The present invention relates to the detection method of a kind of mutation pressure relay, comprise the following steps: the scheduled pressure value of setting high pressure chest; Make pressure according to scheduled pressure value at high pressure chest, and export with the pressure of certain rate variation to the mutation pressure relay being positioned at low pressure chamber; Measured the pressure of the mutation pressure relay being positioned at low pressure chamber by pressure transmitter in real time, and record the time arriving pressure change; When mutation pressure relay action, operation of recording value and action perdurability; Operation of recording value and action are exported as detected result perdurability. Compared with prior art, the present invention has simple and convenient, accuracy of detection advantages of higher.
Description
Technical field
The present invention relates to the detection method of a kind of mutation pressure relay, especially relate to a kind of operation of recording value to mutation pressure relay and method that action detects perdurability.
Background technology
In power industry, in order to ensure the accurate and unified of mutation pressure test data, the on-the-spot requirement to its calibration is a blank always. At present, because not having suitable calibration means and device, fortune inspection personnel cannot hold for the working order of mutation pressure relay, and therefore in actual applications, the Yun Jian department of power plant, electrical network dare not come into operation mutation pressure protection. The protection of most of mutation pressure is all a kind of " ornaments ", it does not have play real provide protection. Therefore, must walking above for the fundamental research of calibration test and embody rule, this is work that is urgent and that must do. To this, in dynamically calibration measuring technology, do a large amount of research work abroad, in war industry, played significant role especially; Research application in general industry field progressively carries out after 80 years last century. In China, if the words that before the eighties, dynamic test is still unfamiliar with by people, so along with reform and opening-up and economic development, dynamically calibration test more and more causes the attention of scientific and technological circle and industrial sector in recent years, particularly a large amount of research work has been done for this reason by scientific research institutions and colleges and universities, and establishes a series of laboratories mutation pressure Metrological Standard Equipment comprising shock tubing, quick-opening valve and various sinusoidal pressure generator. But the research for technical grade verification method is still a blind area.
Summary of the invention
The object of the present invention is exactly the detection method providing a kind of simple and convenient, mutation pressure relay that accuracy of detection is high in order to overcome defect that above-mentioned prior art exists.
The object of the present invention can be achieved through the following technical solutions:
A detection method for mutation pressure relay, comprises the following steps:
1) scheduled pressure value of high pressure chest is set;
2) make pressure according to scheduled pressure value at high pressure chest, and export with the pressure of certain rate variation to the mutation pressure relay being positioned at low pressure chamber;
3) measured the pressure of the mutation pressure relay being positioned at low pressure chamber by pressure transmitter in real time, and record the time arriving pressure change;
4) when mutation pressure relay action, operation of recording value and action perdurability;
5) operation of recording value and action are exported as detected result perdurability.
Step 1) scheduled pressure value in mesohigh chamber for manual setting or set automatically by industrial computer.
Step 2) mesohigh chamber export pressure rate of change be 5kPa/s��200kPa/s.
The rate of change that high pressure chest exports pressure is regulated by magnetic valve.
Described high pressure chest adopts bottom surface diameter to be 80mm, highly be the cylindrical energy storage device of 250mm, and scheduled pressure value is 100kPa.
Compared with prior art, the present invention adopts the rate of pressure change control mode in height pressure-volume chamber, is regulated by the rate of pressure change exported by magnetic valve so that pressure regulates more accurate, thus improves measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the schema of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, the detection method of a kind of mutation pressure relay, it is characterised in that, comprise the following steps:
Step 1: manually the scheduled pressure value of high pressure chest is set by setting or the mode that automatically set by industrial computer, this high pressure chest adopts bottom surface diameter to be 80mm, highly be the cylindrical energy storage device of 250mm, and its scheduled pressure value is 100kPa;
Step 2: make pressure at high pressure chest according to scheduled pressure value, and export with the pressure of certain rate variation to the mutation pressure relay being positioned at low pressure chamber, according to different tests, its rate of pressure change, between 5kPa/s��200kPa/s, is regulated by magnetic valve;
Step 3: the pressure being measured the mutation pressure relay being positioned at low pressure chamber by pressure transmitter in real time, and record the time arriving pressure change;
Step 4: when mutation pressure relay action, operation of recording value and action perdurability;
Step 5: operation of recording value and action are exported as detected result perdurability, namely obtains the measuring result that tolerance range is higher.
Claims (3)
1. the detection method of a mutation pressure relay, it is characterised in that, the method adopts the rate of pressure change control mode in height pressure-volume chamber, is regulated by the rate of pressure change exported by magnetic valve, comprises the following steps:
1) scheduled pressure value of high pressure chest is set;
2) pressure is made according to scheduled pressure value at high pressure chest, and export with the pressure of certain rate variation to the mutation pressure relay being positioned at low pressure chamber, it is 5kPa/s��200kPa/s that high pressure chest exports the rate of change of pressure, and the rate of change that high pressure chest exports pressure is regulated by magnetic valve;
3) measured the pressure of the mutation pressure relay being positioned at low pressure chamber by pressure transmitter in real time, and record the time arriving pressure change;
4) when mutation pressure relay action, operation of recording value and action perdurability;
5) operation of recording value and action are exported as detected result perdurability.
2. the detection method of a kind of mutation pressure relay according to claim 1, it is characterised in that, step 1) scheduled pressure value in mesohigh chamber for manual setting or set automatically by industrial computer.
3. the detection method of a kind of mutation pressure relay according to claim 1, it is characterised in that, described high pressure chest adopts bottom surface diameter to be 80mm, highly be the cylindrical energy storage device of 250mm, and scheduled pressure value is 100kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378270.7A CN102890238B (en) | 2012-09-29 | 2012-09-29 | The detection method of mutation pressure relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378270.7A CN102890238B (en) | 2012-09-29 | 2012-09-29 | The detection method of mutation pressure relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102890238A CN102890238A (en) | 2013-01-23 |
| CN102890238B true CN102890238B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210378270.7A Active CN102890238B (en) | 2012-09-29 | 2012-09-29 | The detection method of mutation pressure relay |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3438680B1 (en) * | 2016-03-31 | 2022-07-27 | Beijing Const Instruments Technology Inc. | Method and device for detecting switching value of pressure switch |
| CN105842616B (en) * | 2016-03-31 | 2018-07-31 | 北京康斯特仪表科技股份有限公司 | A kind of variable Rate approaches the device and method of detection pressure switch switching value |
| CN105785263B (en) * | 2016-03-31 | 2018-07-31 | 北京康斯特仪表科技股份有限公司 | Variable Rate approaches the method and device of detection pressure switch switching value |
| CN107387386B (en) * | 2017-09-18 | 2019-05-21 | 马鞍山钢铁股份有限公司 | A kind of opening/closing condition detection method of thin oil pump drive motor main contactor |
| CN109709478A (en) * | 2018-12-27 | 2019-05-03 | 渤海造船厂集团有限公司 | A kind of adjustment method of batch pressure switch |
| CN113390452B (en) * | 2021-06-16 | 2023-08-18 | 北京康斯特仪表科技股份有限公司 | Method and device for calibrating switch type instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487095A (en) * | 1973-09-19 | 1977-09-28 | Siemens Ag | Electromechanical relay testing circuit arrangements |
| CN201397375Y (en) * | 2009-05-12 | 2010-02-03 | 上海电力变压器修试厂有限公司 | Pressure detection device for pressure relay |
| CN201819769U (en) * | 2010-09-29 | 2011-05-04 | 华东电力试验研究院有限公司 | Calibrating device for sudden-rising pressure relay |
-
2012
- 2012-09-29 CN CN201210378270.7A patent/CN102890238B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487095A (en) * | 1973-09-19 | 1977-09-28 | Siemens Ag | Electromechanical relay testing circuit arrangements |
| CN201397375Y (en) * | 2009-05-12 | 2010-02-03 | 上海电力变压器修试厂有限公司 | Pressure detection device for pressure relay |
| CN201819769U (en) * | 2010-09-29 | 2011-05-04 | 华东电力试验研究院有限公司 | Calibrating device for sudden-rising pressure relay |
Non-Patent Citations (2)
| Title |
|---|
| 压力补偿器和压力继电器计算机测控系统;徐轶等;《机床与液压》;20041231(第4期);第161-162页 * |
| 高低压压力继电器试验台CAT系统的开发;曲范兰等;《机械与电子》;20041231(第10期);第14－16页 * |
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| CN102890238A (en) | 2013-01-23 |
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