CN201594073U - Decomposition product on-line monitoring device of sulfur hexafluoride electrical equipment - Google Patents
Decomposition product on-line monitoring device of sulfur hexafluoride electrical equipment Download PDFInfo
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- CN201594073U CN201594073U CN 201020059310 CN201020059310U CN201594073U CN 201594073 U CN201594073 U CN 201594073U CN 201020059310 CN201020059310 CN 201020059310 CN 201020059310 U CN201020059310 U CN 201020059310U CN 201594073 U CN201594073 U CN 201594073U
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- sulfur hexafluoride
- electrical equipment
- hexafluoride electrical
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Abstract
The utility model discloses a decomposition product on-line monitoring device of sulfur hexafluoride electrical equipment, and belongs to a monitoring device of electric insulation equipment. An exhaust valve of the device to be tested is connected with a testing room; an infrared testing system is arranged in the testing room; and the output end of the infrared testing system is connected with a signal processing unit. Since the utility model provides the on-line monitoring device with decomposition product contents in the sulfur hexafluoride electrical equipment with high sensitivity and good stability, an expert system performs diagnosis according to the tested constituents and contents of the decomposition product and tests internal failure of the sulfur hexafluoride electrical equipment in time so as to provide scientific evidence for equipment condition-based maintenance, thereby avoiding accidents and greatly improving reliability of the equipment.
Description
Technical field
The utility model relates to the monitoring device of electric insulation equipment, a kind of specifically on-Line Monitor Device that detects the inner decomposition product of sulfur hexafluoride electrical equipment.
Background technology
Sulfur hexafluoride is called for short SF
6, its gas not only has good chemical stability, and has superior insulating property and arc extinction performance, is applied to high voltage electric equipment more and more widely as insulating medium, has effectively improved the safety and economic operation of electrical production.But when device interior exists serious overheated and shelf depreciation fault, under the effect of heat and electricity, the SF of fault zone
6Solid insulating materials such as gas and epoxy resin, teflon, polyester vinyl, paper and cloth produce SO with cracking
2, H2S, HF, CF
4With decomposition products such as CO.Therefore, the content that detects these feature decomposition products just can be diagnosed out internal fault.But the detection to these decomposition product content is the mode of off-line at present, because of the sense cycle of supervision is long, is difficult in time find inner hidden danger.Because there are some weak links in design, material, technology and operation maintenance etc., though equipment manufacturing all carries out strict check by relevant rules with production division, but the pilot project in the existing rules is difficult to detect inner minor insulation defective, after equipment puts into operation, the insulating material of fault zone constantly decomposes under the effect of heat and electricity, insulating property constantly reduce, equipment is moved under unsafe condition, and even cause accident, not only cause serious economy loss, and bring bad social influence.
In order to overcome the defective of prior art, the inventor has applied for " testing agency of sulfur hexafluoride electrical equipment fault locator " in 2004 to State Intellectual Property Office, and patents the patent No.: 200420150516.6.Through the production practices in 6 years, find that this mechanism still has very big room for improvement, for this reason, the applicant has further proposed on-Line Monitor Device.
Show from the interrelated data retrieval that comprises Chinese patent, except " testing agency of sulfur hexafluoride electrical equipment fault locator " that the inventor patents, other has " based on the indoor sulfur hexafluoride prior-warning device of the high-voltage switch gear of a CAN bus network " number to be: 200620116715.4 patent at present.This binomial correlation patent is not continuous on-line monitoring SF6 inside electric appliance decomposition product.
The utility model content
In order to overcome the defective of prior art, and further improve the effect of monitoring, the purpose of this utility model is to use characteristic component-SO that the insulating material in the infrared detector monitoring sulfur hexafluoride gas decomposes
2, H2S, HF, CF
4With CO content, the inner hidden danger of timely detection equipment is for state maintenance provides scientific basis, for the safety and economic operation that improves electrical production is played a positive role.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of sulfur hexafluoride electrical equipment decomposition product on-Line Monitor Device, it is characterized in that: the drain tap of detected equipment is connected to sensing chamber by pipeline, in the described sensing chamber infrared detection system is arranged, the output terminal of infrared detection system is connected with signal processing unit.
Described detected equipment is with the converting equipments such as transformer, isolating switch and GIS of sulfur hexafluoride as insulating medium.
Described monitoring device comprises infrared sensor, detecting unit, signal processing unit, A/D converter, LCD display and computing machine.The output terminal of infrared sensor links to each other with the input end of signal processing unit, and the output terminal of signal processing unit links to each other with the input end of A/D converter, and the output terminal of A/D converter links to each other with the data input pin of LCD and monitoring host computer.
Form by power supply unit, control module and failure diagnosis unit in the described monitoring host computer.
During work when device interior exists serious overheated and shelf depreciation fault, under the effect of heat and electricity, the SF of fault zone
6Solid insulating materials such as gas and epoxy resin, teflon, polyester vinyl, paper and cloth produce SO with cracking
2, H2S, HF, CF
4With decomposition product such as CO, the SF around constantly being dissolved in the mode of dissolving, diffusion
6In the gas, the SF of detected device interior
6Gas flow to drain tap by inner connecting leg, enters sensing chamber through drawing pipeline, the SO in the tested gas
2, H2S, HF, CF
4Detect by infrared detection system with decomposition product such as CO and to produce corresponding electric signal, and after will being input to signal processing unit processes, convert the content of analyte to, expert system is according to detected characteristic component and content, and other situations of bonding apparatus are carried out comprehensive diagnos to the state of inside.When decomposition product content just often, data monitored in time stores database into; Decomposition product content is unusual when detecting, and when expert system diagnosed out inside may have the latency fault, device sent sound, light is reported to the police, and detection case was sent on the mobile phone of specifying the specific responsibility people by the GPS very first time.
The intellectuality of the utility model height, it is highly sensitive, good stability, simple to operate, easy for installation.After this patent on-Line Monitor Device is installed, because can in time detect inside may exist the latency fault, for state maintenance provides scientific basis, avoid the generation of accident, effectively improved the safety and economic operation of electrical production, produce good economical, societal benefits, have bigger application value.
The beneficial effects of the utility model are: because the utility model is a kind of on-Line Monitor Device of hexafluoro sulphur inside electric appliance decomposition product content of highly sensitive, good stability, can in time detect the sulfur hexafluoride electrical equipment internal fault, for the state maintenance of equipment provides scientific evidence, thereby avoid the generation of accident, effectively improved the reliability of equipment.
The main innovate point of sulfur hexafluoride electrical equipment decomposition product on-Line Monitor Device of the present utility model is as follows:
1) SO is proposed
2, H2S, HF, CF
4With CO respectively as SF
6The characteristic component that gas, teflon and epoxy resin, polyester vinyl, paper, cloth solid insulating material decompose;
2) use real-time, the continuous on-line monitoring SF of infrared detection technology
6SO in the gas
2, H2S, HF, CF
4With CO content;
3) slave unit drain tap to the connecting line of sensing chamber must possess withstand voltage height, impermeability is good and decomposition product is adsorbed characteristics such as few;
4) the fail soft system of development can be according to detecting SO
2, H2S, HF, CF
4With these characteristic components of CO and content, and other situations of bonding apparatus carry out comprehensive diagnos to the state of inside, in time detect inner hidden danger.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model sulfur hexafluoride electrical equipment decomposition product on-Line Monitor Device functional-block diagram.
1 detected equipment (being generally A, B, C three-phase) among the figure, 2 connecting pipes, 3 sensing chamber, 4 infrared detector tubes, 5 power supply units, 6 control modules, 7 signal processing units of waiting.
By sensing chamber, detector tube, power supply unit, signal processing unit and control module etc., equipment under test gas flows into sensing chamber by the road from vent valve and detects among the figure.
Fig. 2 is the utility model monitor control system block scheme.
Comprise detecting sensor, signal processing unit, A/D converter, LCD display and computing machines such as infrared among the figure, the output terminal of sensor links to each other with the input end of signal processing unit, the output terminal of signal processing unit links to each other with the input of A/D converter, and the output terminal of A/D converter links to each other with the data input pin of computing machine.
Embodiment
Embodiment 1:
The inner SF6 gas of detected equipment (1) flows out by the road from drain tap that (2) enter sensing chamber (3), and infrared detection system (4) is arranged in sensing chamber, after tested gas enters detector tube, and SO
2, H2S, HF, CF
4Detect through infrared sensor with decomposition products such as CO, produce corresponding electric signal and be input to signal processing unit (7), carry out the analysis and the diagnosis of data.
After device started during work, main systemic-function and device to device in 10 seconds carried out self check, entered detected state, the SF that detected equipment (1) is inner after normal
6Gas flows out by the road from drain tap that (2) enter sensing chamber (3), to the SO in the gas
2, H2S, HF, CF
4Detect by corresponding infrared sensor (4) with the CO characteristic component, convert the concentration of decomposition product to corresponding electric signal, after amplifying (7), A/D conversion, signal processing unit shows by LCD, carry out analysis and judgement according to the data that detect, propose handling suggestion, and store detection case into database.When the concentration that monitors decomposition product surpasses normal value, when expert system diagnoses out inside may have the latency fault, device sends sound, light is reported to the police, simultaneously detection case is sent to specialized management person's mobile phone in the very first time, so that in time organize the related personnel to make further analysis and judgement, propose effective measures, prevent the generation of accident.
The intellectuality of the utility model height, the computing machine of described pick-up unit mainly comprises control module, data processing unit, failure diagnosis unit and data storage cell.
Claims (3)
1. sulfur hexafluoride electrical equipment decomposition product on-Line Monitor Device, it is characterized in that: the drain tap of detected equipment is connected to sensing chamber by pipeline, in the described sensing chamber infrared detection system is arranged, the output terminal of infrared detection system is connected with signal processing unit.
2. a kind of sulfur hexafluoride electrical equipment decomposition product on-Line Monitor Device according to claim 1, it is characterized in that: described monitoring device comprises the infrared sensor of infrared detection system, detecting unit, signal processing unit, A/D converter, LCD display and computing machine; The output terminal of infrared sensor links to each other with the input end of signal processing unit, and the output terminal of signal processing unit links to each other with the input end of A/D converter, and the output terminal of A/D converter links to each other with the data input pin of LCD and monitoring host computer.
3. a kind of sulfur hexafluoride electrical equipment decomposition product on-Line Monitor Device according to claim 1 is characterized in that: be made up of power supply unit, control module and failure diagnosis unit in the described monitoring host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020059310 CN201594073U (en) | 2010-01-14 | 2010-01-14 | Decomposition product on-line monitoring device of sulfur hexafluoride electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020059310 CN201594073U (en) | 2010-01-14 | 2010-01-14 | Decomposition product on-line monitoring device of sulfur hexafluoride electrical equipment |
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| CN201594073U true CN201594073U (en) | 2010-09-29 |
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| CN 201020059310 Expired - Lifetime CN201594073U (en) | 2010-01-14 | 2010-01-14 | Decomposition product on-line monitoring device of sulfur hexafluoride electrical equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788918A (en) * | 2012-07-12 | 2012-11-21 | 厦门加华电力科技有限公司 | Method for applying gas to detect and diagnose internal fault of sulfur hexafluoride electrical equipment |
| CN102866182A (en) * | 2011-07-07 | 2013-01-09 | 厦门加华电力科技有限公司 | Carbon monoxide detector for sulfur hexafluoride electric equipment |
| CN103412245A (en) * | 2013-06-27 | 2013-11-27 | 厦门加华电力科技有限公司 | Sulfur hexafluoride electrical equipment hydrogen detector, and application method thereof |
| CN103604769A (en) * | 2013-11-13 | 2014-02-26 | 广东电网公司电力科学研究院 | Fourier infrared spectrum analysis method for SF6 (sulfur hexafluoride) decomposition product |
| CN108458984A (en) * | 2018-05-21 | 2018-08-28 | 郑州力创光电技术有限公司 | The online gas-monitoring control system of air insulating device based on photoelectric sensing principle |
| CN108693132A (en) * | 2018-05-21 | 2018-10-23 | 郑州力创光电技术有限公司 | A kind of integrated gas analyzer and its application method based on photoelectric sensing principle |
| CN112924332A (en) * | 2021-01-27 | 2021-06-08 | 贵州电网有限责任公司 | SO in GIS equipment based on CFD technology2Diffusion characteristic determination method |
| CN113588538A (en) * | 2021-08-31 | 2021-11-02 | 国网陕西省电力公司电力科学研究院 | SF (sulfur hexafluoride)6Thermal corrosion evaluation method of polytetrafluoroethylene under atmosphere |
-
2010
- 2010-01-14 CN CN 201020059310 patent/CN201594073U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866182A (en) * | 2011-07-07 | 2013-01-09 | 厦门加华电力科技有限公司 | Carbon monoxide detector for sulfur hexafluoride electric equipment |
| CN102866182B (en) * | 2011-07-07 | 2015-03-11 | 厦门加华电力科技有限公司 | Carbon monoxide detector for sulfur hexafluoride electric equipment |
| CN102788918A (en) * | 2012-07-12 | 2012-11-21 | 厦门加华电力科技有限公司 | Method for applying gas to detect and diagnose internal fault of sulfur hexafluoride electrical equipment |
| CN102788918B (en) * | 2012-07-12 | 2015-04-22 | 厦门加华电力科技有限公司 | Method for applying gas to detect and diagnose internal fault of sulfur hexafluoride electrical equipment |
| CN103412245A (en) * | 2013-06-27 | 2013-11-27 | 厦门加华电力科技有限公司 | Sulfur hexafluoride electrical equipment hydrogen detector, and application method thereof |
| CN103412245B (en) * | 2013-06-27 | 2016-03-23 | 厦门加华电力科技有限公司 | Sulfur hexafluoride electrical equipment hydrogen detector and using method thereof |
| CN103604769A (en) * | 2013-11-13 | 2014-02-26 | 广东电网公司电力科学研究院 | Fourier infrared spectrum analysis method for SF6 (sulfur hexafluoride) decomposition product |
| CN108458984A (en) * | 2018-05-21 | 2018-08-28 | 郑州力创光电技术有限公司 | The online gas-monitoring control system of air insulating device based on photoelectric sensing principle |
| CN108693132A (en) * | 2018-05-21 | 2018-10-23 | 郑州力创光电技术有限公司 | A kind of integrated gas analyzer and its application method based on photoelectric sensing principle |
| CN112924332A (en) * | 2021-01-27 | 2021-06-08 | 贵州电网有限责任公司 | SO in GIS equipment based on CFD technology2Diffusion characteristic determination method |
| CN112924332B (en) * | 2021-01-27 | 2023-04-28 | 贵州电网有限责任公司 | CFD technology-based SO2 diffusion characteristic determination method in GIS equipment |
| CN113588538A (en) * | 2021-08-31 | 2021-11-02 | 国网陕西省电力公司电力科学研究院 | SF (sulfur hexafluoride)6Thermal corrosion evaluation method of polytetrafluoroethylene under atmosphere |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100929 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: XIAMEN JIAHUA ELECTRICAL TECHNOLOGY Co.,Ltd. Document name: Notification of Expiration of Patent Right Duration |