CN102890239A - Detection device of mutation pressure relay - Google Patents
Detection device of mutation pressure relay Download PDFInfo
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- CN102890239A CN102890239A CN2012103782980A CN201210378298A CN102890239A CN 102890239 A CN102890239 A CN 102890239A CN 2012103782980 A CN2012103782980 A CN 2012103782980A CN 201210378298 A CN201210378298 A CN 201210378298A CN 102890239 A CN102890239 A CN 102890239A
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Abstract
The invention relates to a detection device of a mutation pressure relay. The detection device is used for detecting an action value and an action duration time of the mutation pressure relay. The detection device comprises a pre-pressure module for detecting a necessary pressure and a measuring module for detecting the mutation pressure relay, wherein an output end of the pre-pressure module is connected with the measuring module through a pipeline with an output electromagnetic valve; and the mutation pressure relay is arranged on the measuring module and is connected with the output end of the pre-pressure module. Compared with the prior art, the detection device has the advantages of being high in detection precision, convenient to use and the like.
Description
Technical field
The present invention relates to a kind of pick-up unit, especially relate to a kind of pick-up unit for the mutation pressure relay.
Background technology
In power industry, in order to guarantee the accurate and unified of mutation pressure test data, 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 can't hold for the duty of mutation pressure relay, therefore in actual applications, and the mutation pressure protection that dare not come into operation of the fortune of power plant, electrical network inspection department.Most of mutation pressure protections all are a kind of " ornaments ", do not play real protective effect.Therefore, must go before for calibration testing and concrete fundamental research of using, this is work urgent and that must do.To this, external having done a large amount of research work aspect the dynamic calibration measuring technology, brought into play significant role in war industry especially; Use in the research in general industry field is progressively to carry out later on 80 years last century.In China, if before the eighties people to dynamic test unfamiliar words still, so along with reform and opening-up and expanding economy, in recent years dynamic calibration test 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 has set up the series of experiments chamber mutation pressure Metrological Standard Equipment that comprises shock tube, quick-opening valve and various Sine Pressure Generators.But the research for technical grade calibration equipment and method is still a blind area, and therefore on-the-spot do not have a corresponding product with the portable correcting device of mutation pressure is domestic, and external Related product also is to detect for the laboratory; Along with the continuous utilization of the development of science and technology and power grid new technology, new product, extremely urgent for the Measurement and calibration research of electrical network mutation pressure.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of accuracy of detection mutation pressure electric relay detection device high, easy to use for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of mutation pressure electric relay detection device, for detection of the working value of mutation pressure relay and action perdurability, described pick-up unit comprises for generation of the preloaded module that detects required pressure and the measurement module that the mutation pressure relay is detected, the output terminal of described preloaded module is connected with measurement module by the pipeline that is provided with output solenoid valve, described mutation pressure relay is located on the measurement module, connects the output terminal of preloaded module.
Pipeline between described preloaded module and the measurement module is provided with at least two output solenoid valves that are used for the rate of pressure change of adjusting.
Pipeline between described preloaded module and the measurement module also is circumscribed with flow control valve, is used for carrying out auxiliary adjustment when the low-pressure rate of change.
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 with accumulator and are connected, and this accumulator is connected with the pipeline of precompressed end sensor, pre-pressure side vent valve and connection measurement module respectively by the precompressed terminal adapter.
The input end of described pre-press pump also is provided with filtrator.
Described measurement module comprises measuring junction vent valve, standard pressure transducer and measuring junction connector, described measuring junction vent valve connects pipeline by the preloaded module access with mutation pressure relay on being connected measurement module by the measuring junction connector, and described standard pressure transducer connects the mutation pressure relay.
Compared with prior art, the present invention adopts the rate of pressure change control mode of high-low pressure cavity volume, the rate of pressure change of output is regulated in conjunction with flow control valve by a plurality of output solenoid valves, so that the pressure adjusting is more accurate, thereby improves measuring accuracy.In preloaded module, adopt in addition independently accumulator as high pressure chest, and add fixed filter at the precompressed delivery side of pump, guarantee that the gas of precompressed can reach predetermined air pressure.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
As shown in Figure 1, a kind of mutation pressure electric relay detection device, for detection of the working value of mutation pressure relay and action perdurability, comprise for generation of the preloaded module 1 that detects required pressure and the measurement module 2 that the mutation pressure relay is detected.
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 with accumulator and are connected successively, and the precompressed terminal adapter 17 that pass through of this accumulator 14 is connected with the pipeline of precompressed end sensor 15, pre-pressure side vent valve 16 and connection measurement module 2 respectively.Wherein, accumulator 14 is used for storing required pressure, thereby pre-press pump 12 then is used for carrying gas to produce required pressure to accumulator 14, and whether the pressure that precompressed end sensor 16 is used for measuring in the accumulator 14 reaches the measurement requirement, and 16 of pre-pressure side vent valves are used for vent gas.
Measurement module 2 comprises measuring junction vent valve 22, standard pressure transducer 23 and measuring junction connector 21, the pipeline that measuring junction vent valve 22 and mutation pressure relay 4 on being connected measurement module 2 connect by preloaded module 1 access by measuring junction connector 21, the actual mutation pressure that produces of simulation, standard pressure transducer 23 connects mutation pressure relay 4, detects.
Pipeline between preloaded module 1 and the measurement module 2 is provided with 4 output solenoid valves, be respectively the first output solenoid valve 31, the 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, thereby control enters the rate of pressure change of mutation pressure relay 4.On the pipeline at the first output solenoid valve 31 places, also be circumscribed with a flow control valve 35 and be used for auxiliary adjustment.
The specific implementation process is: at first make pressure by pre-press pump, open pre-pressure electromagnetic valve, so that the pressure of accumulator reaches more than the 100kPa, reach required working pressure by pre-pressure side vent valve adjusting again.When the rate of pressure change of needs hangs down, when being generally 5Kpa/s, only there is the first output solenoid valve 31 to open and is in adjustment state, the second output solenoid valve 32, the 3rd output solenoid valve 33, the 4th output solenoid valve 34 are all closed at this moment, on the pipeline at the first output solenoid valve 31 places, also by an external flow control valve 35, carry out auxiliary adjustment.When rate of change will be at 10kPa/s, 20kPa/s, 50kPa/s, 100kPa/s, 200kPa/s, close external flow control valve 35, then by regulating the first output solenoid valve 31, the second output solenoid valve 32, the 3rd output solenoid valve 33, the 4th output solenoid valve 34, make it reach the rate of pressure change that needs.At this moment, the working value in the time of can producing action to relay by standard pressure transducer is measured, and can record and move perdurability to producing the time of moving according to reaching this value.
Claims (6)
1. mutation pressure electric relay detection device, for detection of the working value of mutation pressure relay and action perdurability, it is characterized in that, described pick-up unit comprises for generation of the preloaded module that detects required pressure and the measurement module that the mutation pressure relay is detected, the output terminal of described preloaded module is connected with measurement module by the pipeline that is provided with output solenoid valve, described mutation pressure relay is located on the measurement module, connects the output terminal of preloaded module.
2. a kind of mutation pressure electric relay detection device according to claim 1 is characterized in that, the pipeline between described preloaded module and the measurement module is provided with at least two output solenoid valves that are used for the rate of pressure change of adjusting.
3. a kind of mutation pressure electric relay detection device according to claim 2 is characterized in that, the pipeline between described preloaded module and the measurement module also is circumscribed with flow control valve, is used for carrying out auxiliary adjustment when the low-pressure rate of change.
4. a kind of mutation pressure electric relay detection device 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 with accumulator and are connected, and this accumulator is connected with the pipeline of precompressed end sensor, pre-pressure side vent valve and connection measurement module respectively by the precompressed terminal adapter.
5. a kind of mutation pressure electric relay detection device according to claim 4 is characterized in that, the input end of described pre-press pump also is provided with filtrator.
6. a kind of mutation pressure electric relay detection device 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 connects pipeline by the preloaded module access with mutation pressure relay on being connected measurement module by the measuring junction connector, and described standard pressure transducer connects the mutation pressure relay.
Priority Applications (1)
| 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 true CN102890239A (en) | 2013-01-23 |
| CN102890239B CN102890239B (en) | 2015-12-16 |
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| CN201210378298.0A Active CN102890239B (en) | 2012-09-29 | 2012-09-29 | A kind of detection device of mutation pressure relay |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199413A (en) * | 2016-06-29 | 2016-12-07 | 浙江科技学院 | A kind of oil pressure shut-off switch functional test desk |
| CN107387386A (en) * | 2017-09-18 | 2017-11-24 | 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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| JP2000276997A (en) * | 1999-03-29 | 2000-10-06 | Fuji Electric Co Ltd | Earth leakage circuit breaker for single phase |
| 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 |
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2012
- 2012-09-29 CN CN201210378298.0A patent/CN102890239B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199413A (en) * | 2016-06-29 | 2016-12-07 | 浙江科技学院 | A kind of oil pressure shut-off switch functional test desk |
| CN107387386A (en) * | 2017-09-18 | 2017-11-24 | 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 |
| 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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|---|---|
| CN102890239B (en) | 2015-12-16 |
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