CN102890239B - A kind of detection device of mutation pressure relay - Google Patents
A kind of detection device of mutation pressure relay Download PDFInfo
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- CN102890239B CN102890239B CN201210378298.0A CN201210378298A CN102890239B CN 102890239 B CN102890239 B CN 102890239B CN 201210378298 A CN201210378298 A CN 201210378298A CN 102890239 B CN102890239 B CN 102890239B
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- pressure relay
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- 230000035772 mutation Effects 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000011160 research Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The present invention relates to a kind of detection device of mutation pressure relay, for detecting working value and action perdurability of mutation pressure relay, described pick-up unit comprises for generation of the preloaded module detecting required pressure and the measurement module detected mutation pressure relay, the output terminal of described preloaded module is connected with measurement module by the pipeline being provided with output solenoid valve, described mutation pressure relay is located on measurement module, connects the output terminal of preloaded module.Compared with prior art, the present invention has the advantages such as accuracy of detection is high, easy to use.
Description
Technical field
The present invention relates to a kind of pick-up unit, especially relate to a kind of pick-up unit for mutation pressure relay.
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 do not have suitable calibration means and device, fortune inspection personnel cannot hold for the duty 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.Most of mutation pressure protection is all a kind of " ornaments ", does not play real protective effect.Therefore, the fundamental research for calibration testing and embody rule must go before, and this is work that is urgent and that must do.To this, in dynamic 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 eighties before people to the still unfamiliar words of dynamic test, so along with reform and opening-up and expanding economy, the test of dynamic calibration in recent years more and more causes the attention of scientific and technological circle and industrial sector, particularly a large amount of research work has been done for this reason by scientific research institutions and colleges and universities, and establishes the series of experiments room mutation pressure Metrological Standard Equipment comprising shock tube, quick-opening valve and various Sine Pressure Generator.But be still a blind area for the research of technical grade calibration equipment and method, therefore mutation pressure portable correcting device in scene is domestic does not have corresponding product, and external Related product is also for test in laboratory; Along with the continuous utilization of the development of science and technology and power grid new technology, new product, the Measurement and calibration research for electrical network mutation pressure is extremely urgent.
Summary of the invention
Object of the present invention is exactly to overcome the defect and the detection device of mutation pressure relay that provides a kind of accuracy of detection high, easy to use that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of detection device of mutation pressure relay, for detecting working value and action perdurability of mutation pressure relay, described pick-up unit comprises for generation of the preloaded module detecting required pressure and the measurement module detected mutation pressure relay, the output terminal of described preloaded module is connected with measurement module by the pipeline being provided with output solenoid valve, described mutation pressure relay is located on measurement module, connects the output terminal of preloaded module.
Pipeline between described preloaded module and measurement module is provided with at least two output solenoid valves of rate of pressure change for regulating.
Pipeline between described preloaded module and measurement module is also circumscribed with flow control valve, for when low-pressure rate of change, carries out auxiliary adjustment.
Described preloaded module comprises pre-press pump, pre-pressure electromagnetic valve, accumulator, precompressed end sensor, pre-pressure side vent valve and precompressed terminal adapter, described pre-press pump, pre-pressure electromagnetic valve are connected successively with accumulator, and this accumulator is connected with precompressed end sensor, pre-pressure side vent valve and the pipeline that is communicated with measurement module respectively by precompressed terminal adapter.
The input end of described pre-press pump is also provided with filtrator.
Described measurement module comprises measuring junction vent valve, standard pressure transducer and measuring junction connector, described measuring junction vent valve is connected with the mutation pressure relay be located on measurement module the pipeline accessed by preloaded module by measuring junction connector, described standard pressure transducer connects mutation pressure relay.
Compared with prior art, the present invention adopts the rate of pressure change control mode of high-low pressure cavity volume, is regulated in conjunction with flow control valve by multiple output solenoid valve to the rate of pressure change exported, and pressure is regulated more accurate, thus improves measuring accuracy.In preloaded module, adopt independently accumulator as high pressure chest, and to add fixed filter at precompressed delivery side of pump in addition, ensure that the gas of precompressed can reach predetermined air pressure.
Accompanying drawing explanation
Fig. 1 is structural representation 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, a kind of detection device of mutation pressure relay, for detecting working value and action perdurability of mutation pressure relay, comprise for generation of the preloaded module 1 detecting required pressure and the measurement module 2 detected mutation pressure relay.
Preloaded module 1 comprises filtrator 11, pre-press pump 12, pre-pressure electromagnetic valve 13, accumulator 14, precompressed end sensor 15, pre-pressure side vent valve 16 and precompressed terminal adapter 17.Pre-press pump 12, pre-pressure electromagnetic valve 13 are connected successively with accumulator 14, being connected with precompressed end sensor 15, pre-pressure side vent valve 16 and the pipeline that is communicated with measurement module 2 respectively by precompressed terminal adapter 17 of this accumulator 14.Wherein, accumulator 14 be used for store needed for pressure, pre-press pump 12 is then used for carrying gas thus pressure needed for producing to accumulator 14, and precompressed end sensor 16 is used for the pressure measured in accumulator 14 and whether reaches measurement requirement, and pre-pressure side vent valve 16 is for vent gas.
Measurement module 2 comprises measuring junction vent valve 22, standard pressure transducer 23 and measuring junction connector 21, measuring junction vent valve 22 is connected with the mutation pressure relay 4 be located on measurement module 2 pipeline accessed by preloaded module 1 by measuring junction connector 21, the actual mutation pressure produced of simulation, standard pressure transducer 23 connects mutation pressure relay 4, detects.
Pipeline between preloaded module 1 and measurement module 2 is provided with 4 output solenoid valves, be respectively the first output solenoid valve 31, second output solenoid valve 32, the 3rd output solenoid valve 33, the 4th output solenoid valve 34, each solenoid valve all can cut out separately or open, thus controls the rate of pressure change entering mutation pressure relay 4.On the pipeline at the first output solenoid valve 31 place, be also circumscribed with a flow control valve 35 for auxiliary adjustment.
Specific implementation process is: first make pressure by pre-press pump, opens pre-pressure electromagnetic valve, makes the pressure of accumulator reach more than 100kPa, then reaches required working pressure by pre-pressure side vent valve adjustment.When the rate of pressure change needed is low, when being generally 5Kpa/s, only there is the first output solenoid valve 31 to open and be in adjustment state, now the second output solenoid valve 32, the 3rd output solenoid valve 33, the 4th output solenoid valve 34 are all closed, also by an external flow control valve 35 on the pipeline at the first output solenoid valve 31 place, carry out auxiliary adjustment.When rate of change will at 10kPa/s, 20kPa/s, 50kPa/s, 100kPa/s, 200kPa/s time, close external flow control valve 35, then by adjustment first output solenoid valve 31, second output solenoid valve 32, the 3rd output solenoid valve 33, the 4th output solenoid valve 34, it is made to reach the rate of pressure change of needs.Now, working value when can produce action to relay by standard pressure transducer is measured, and can record action perdurability according to reaching this value to the time of producing action.
Claims (4)
1. a detection device of mutation pressure relay, for detecting working value and action perdurability of mutation pressure relay, it is characterized in that, described pick-up unit comprises for generation of the preloaded module detecting required pressure and the measurement module detected mutation pressure relay, the output terminal of described preloaded module is connected with measurement module by the pipeline being provided with output solenoid valve, described mutation pressure relay is located on measurement module, connects the output terminal of preloaded module;
Pipeline between described preloaded module and measurement module is provided with at least two output solenoid valves of rate of pressure change for regulating all can closed separately or open;
Pipeline between described preloaded module and measurement module is also circumscribed with flow control valve, for when low-pressure rate of change, carries out auxiliary adjustment;
Above-mentioned detection device adopts the rate of pressure change control mode of high-low pressure cavity volume, is regulated in conjunction with flow control valve by multiple output solenoid valve to the rate of pressure change exported.
2. a kind of detection device of mutation pressure relay according to claim 1, it is characterized in that, described preloaded module comprises pre-press pump, pre-pressure electromagnetic valve, accumulator, precompressed end sensor, pre-pressure side vent valve and precompressed terminal adapter, described pre-press pump, pre-pressure electromagnetic valve are connected successively with accumulator, and this accumulator is connected with precompressed end sensor, pre-pressure side vent valve and the pipeline that is communicated with measurement module respectively by precompressed terminal adapter.
3. a kind of detection device of mutation pressure relay according to claim 2, is characterized in that, the input end of described pre-press pump is also provided with filtrator.
4. a kind of detection device of mutation pressure relay according to claim 1, it is characterized in that, described measurement module comprises measuring junction vent valve, standard pressure transducer and measuring junction connector, described measuring junction vent valve is connected with the mutation pressure relay be located on measurement module the pipeline accessed by preloaded module by measuring junction connector, described standard pressure transducer connects mutation pressure relay.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378298.0A CN102890239B (en) | 2012-09-29 | 2012-09-29 | A kind of detection device of mutation pressure relay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378298.0A CN102890239B (en) | 2012-09-29 | 2012-09-29 | A kind of detection device of mutation pressure relay |
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| CN102890239A CN102890239A (en) | 2013-01-23 |
| CN102890239B true CN102890239B (en) | 2015-12-16 |
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| CN106199413B (en) * | 2016-06-29 | 2020-12-22 | 浙江科技学院 | Oil pressure switch function test bench |
| 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 |
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|---|---|---|---|---|
| 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 |
| GB2465068A (en) * | 2008-11-07 | 2010-05-12 | Ea Tech Ltd | Testing circuit breaker contact deterioration |
| CN202033457U (en) * | 2011-03-24 | 2011-11-09 | 李小南 | Novel multifunctional ELE-MCCB (ester like ether-molded case circuit breaker) tester |
| CN202204879U (en) * | 2011-08-09 | 2012-04-25 | 南车洛阳机车有限公司 | High-voltage testing device without electric network for electric locomotives |
| CN102508054A (en) * | 2011-10-05 | 2012-06-20 | 南车洛阳机车有限公司 | High-voltage test device of grid-free self-coupling locomotive and using method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000276997A (en) * | 1999-03-29 | 2000-10-06 | Fuji Electric Co Ltd | Earth leakage circuit breaker for single phase |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2465068A (en) * | 2008-11-07 | 2010-05-12 | Ea Tech Ltd | Testing circuit breaker contact deterioration |
| 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 |
| CN202033457U (en) * | 2011-03-24 | 2011-11-09 | 李小南 | Novel multifunctional ELE-MCCB (ester like ether-molded case circuit breaker) tester |
| CN202204879U (en) * | 2011-08-09 | 2012-04-25 | 南车洛阳机车有限公司 | High-voltage testing device without electric network for electric locomotives |
| CN102508054A (en) * | 2011-10-05 | 2012-06-20 | 南车洛阳机车有限公司 | High-voltage test device of grid-free self-coupling locomotive and using method thereof |
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| CN102890239A (en) | 2013-01-23 |
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