CN2898824Y - Quantitative SF gas leakage detector - Google Patents
Quantitative SF gas leakage detector Download PDFInfo
- Publication number
- CN2898824Y CN2898824Y CN200620032231.1U CN200620032231U CN2898824Y CN 2898824 Y CN2898824 Y CN 2898824Y CN 200620032231 U CN200620032231 U CN 200620032231U CN 2898824 Y CN2898824 Y CN 2898824Y
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- CN
- China
- Prior art keywords
- microprocessor
- sensor
- gas
- quantitative
- wires
- 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 - Lifetime
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 13
- 238000001514 detection method Methods 0.000 description 8
- 230000002285 radioactive effect Effects 0.000 description 4
- 230000005264 electron capture Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000752 ionisation method Methods 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to a quantitative SF6 gas leakage detector applied for high voltage wiring of power supply system, which also analyzes the content of O2 in the environment on the spot. Wire is used to connect the battery with the high voltage impulse circuit and connect the high voltage impulse circuit with the sensor. SF6 gas sensor and O2 sensor are connected with microprocessor through wires respectively. A liquid crystal display is connected with a microprocessor through a plurality of wires. The microprocessor is connected with two sound alarm units respectively through wires. The utility model has advantages of including high sensitivity, wide liner scope, good stability, long life-span and low cost.
Description
Technical field
The utility model relates to a kind of SF that is used to fill
6The SF of gas high-voltage electrical equipment
6The quantitative leak detector that gas leaks, this leak locator also can be analyzed the O in the site environment
2Content.
Background technology
Along with the development of power technology, SF
6Electrical equipment has obtained using widely, except SF
6Isolating switch outside the GIS sealing combined electric, has occurred SF again now
6Transformer, voltage transformer (VT), power transformer and all kinds of bushings etc. of insulation.In order to guarantee SF
6The insulation of electrical equipment and arc extinguishing ability, SF
6Gas generally all is installed in the electrical equipment with higher pressure (0.3MPA and 0.6MPA etc.), though relevant rules require SF
6The year leak rate of electrical equipment is not more than 1%, but in the practical action process, the equipment of many producers all is difficult to reach this requirement.Simultaneously, if the sealing of equipment is broken down and damaged, also can cause leaking at short notice a large amount of SF
6Gas.In addition, on-the-spot erecting equipment and maintenance or test SF
6During gas, also have a spot of SF
6Gas is discharged.
Though SF
6Gas is safe in theory, and is nontoxic and incombustible, still, because SF
6Gas is colourless, tasteless, SF
6Molecular weight be 146.7, proportion is about 5 times of air, is deposited on space bottom easily, and is difficult for diffusion, sucks too much, can cause staff's dizziness, vomiting etc., may cause dying because of being choked to death when serious.Simultaneously, at SF
6In the gas preparation process, might sneak into some noxious materials, in the switching manipulation process, the electric arc of generation also can be to SF
6Have an effect, produce the multiple compound of forming by elements such as sulphur, fluorine, oxygen, hydrogen, carbon, as HF, SF
4, SOF
2Deng noxious material.Therefore, along with SF
6The increase that electrical equipment uses, constituent parts should be paid much attention to SF
6Safety in the electrical equipment is regularly used SF
6Leak locator is to SF
6Electrical equipment is hunted leak, and in time finds SF
6The precautionary measures are taked in the leakage of gas and the localization of faults.
Micro-SF in the air
6The detection of gas is the comparison difficulty, and the external method of widely using has: infrared absorption method, radioactive source type electron capture comparator method, electric spark ionization method and thermal conductivity method.
Infrared absorption method costs an arm and a leg, equipment is big but range of linearity broad; Radioactive source type electron capture comparator method also is a kind of common method, characteristics such as it has, and reaction velocity is fast, highly sensitive, price is more expensive, equipment volume big (sensing chamber need remain on vacuum state), the range of linearity are narrow.The spark ionization method is the simple type of above-mentioned radioactive source type electron capture comparator method, promptly utilize the method for high-frequency and high-voltage discharge spark to replace radioactive source, and form an ion flow (base flow), and this base flow is touching SF
6Its base flow is descended, thereby detect SF
6Gas, this kind method is highly sensitive, non-linear, be subject to interference such as other material in the air (for example moisture content) and temperature simultaneously, especially the corrode phenomenon of the sparking electrode base flow that makes its generation is extremely unstable, therefore is used for the leak detection use (for example air-conditioning leak detection etc.) of portable halogen that short-term uses and compound more; Therefore thermal conductivity method is used few because its remolding sensitivity is lower.
Above-mentioned detection method all belongs to physical method.The electrochemical sensor technology that grows up in recent ten years is ripe gradually, because a series of outstanding advantages such as that electrochemical sensor has is highly sensitive, the range of linearity is wide, good stability and long service life, price are low, the application that makes its micro-specific gas in measuring air more and more widely, but because SF
6Molecular structure is extremely stablized and can't be used electrochemical sensor directly it to be measured.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art existence and a kind of SF that is applied to the electric power system high-voltage electrical equipment is provided
6Gasometry leak detection instrument, it not only can be used for SF
6Leak detection can also be used for site environment O
2The monitoring, alarming of content is worked as O
2When being lower than a certain numerical value, content may have SF to remind the field staff with audible alarm
6Leak, wherein, SF
6What the gasometry leak detection sensor was used is the negative corona discharge detection method, have highly sensitive, the range of linearity is wide, good stability and long service life, advantage that price is low.
The purpose of this utility model is achieved in that between battery and the high-voltage pulse circuit, link to each other SF with lead between high-voltage pulse circuit and the SF6 sensor
6Gas sensor, O
2Sensor connects with microprocessor with lead respectively, and liquid crystal display links to each other with microprocessor with multiple conducting wires, and microprocessor links to each other with lead respectively with 2 audible alarm unit.
The utility model for make the SF6 gasometric analysis more accurately, sensitive, the range of linearity is good, employing be SF6 gas sensor and the high performance microprocessor that negative corona discharge detects principle; For satisfying the needs under the on-the-spot complex environment, the also additional electrochemical O of this instrument
2Sensor is used for detecting the O of site environment
2Content.The utlity model has highly sensitive, the range of linearity is wide, good stability and long service life, advantage that price is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, between battery 1 and the high-voltage pulse circuit 2, link to each other SF between high-voltage pulse circuit 2 and the SF6 sensor 3 with lead
6Gas sensor 3, O
2Sensor 4 connects with microprocessor 5 with lead respectively, and liquid crystal display 5 usefulness multiple conducting wires link to each other with microprocessor 6, and microprocessor 6 links to each other with lead respectively with 2 audible alarm unit 7.
During work, high-voltage pulse circuit provides a high-voltage pulse for the SF6 sensor, the high-precision signal input microprocessor of SF6 sensor and the output of O2 electrochemical sensor, pass through the computing of microprocessor and be controlled at and show numerical value on the liquid crystal display, the content that is higher than the high alarm setting of setting or O2 when SF6 concentration is lower than warning following in limited time, send alarm sound.
Claims (1)
1, a kind of SF
6The quantitative leak detector that gas leaks is characterized in that: between battery and the high-voltage pulse circuit, link to each other SF with lead between high-voltage pulse circuit and the SF6 sensor
6Gas sensor, O
2Sensor connects with microprocessor with lead respectively, and liquid crystal display links to each other with microprocessor with multiple conducting wires, and microprocessor links to each other with lead respectively with 2 audible alarm unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620032231.1U CN2898824Y (en) | 2006-06-08 | 2006-06-08 | Quantitative SF gas leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620032231.1U CN2898824Y (en) | 2006-06-08 | 2006-06-08 | Quantitative SF gas leakage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898824Y true CN2898824Y (en) | 2007-05-09 |
Family
ID=38074159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200620032231.1U Expired - Lifetime CN2898824Y (en) | 2006-06-08 | 2006-06-08 | Quantitative SF gas leakage detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898824Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293272A (en) * | 2013-05-09 | 2013-09-11 | 济南市长清计算机应用公司 | Sulfur hexafluoride alarm detector |
| CN103592085A (en) * | 2013-11-19 | 2014-02-19 | 国家电网公司 | Negative corona sulfur hexafluoride gas leak detector |
| CN108169321A (en) * | 2017-12-21 | 2018-06-15 | 中国科学院电子学研究所 | High pure nitrogen detection method and device |
| CN109297958A (en) * | 2018-11-13 | 2019-02-01 | 国网四川省电力公司成都供电公司 | It is a kind of for monitoring the colour developing prior-warning device of SF6 Electric Power Equipment Insulation gas decomposition product in real time |
| CN109974939A (en) * | 2017-08-23 | 2019-07-05 | 福建中电合创电力科技有限公司 | A kind of method and system of the comprehensive detection SF6 leakage of detection |
| CN110243542A (en) * | 2019-05-31 | 2019-09-17 | 国网上海市电力公司 | A kind of SF6Gas leaks imaging detection method and detection device |
-
2006
- 2006-06-08 CN CN200620032231.1U patent/CN2898824Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293272A (en) * | 2013-05-09 | 2013-09-11 | 济南市长清计算机应用公司 | Sulfur hexafluoride alarm detector |
| CN103592085A (en) * | 2013-11-19 | 2014-02-19 | 国家电网公司 | Negative corona sulfur hexafluoride gas leak detector |
| CN103592085B (en) * | 2013-11-19 | 2016-08-17 | 国家电网公司 | Negative corona sulfur hexafluoride gas leak detector |
| CN109974939A (en) * | 2017-08-23 | 2019-07-05 | 福建中电合创电力科技有限公司 | A kind of method and system of the comprehensive detection SF6 leakage of detection |
| CN109974940A (en) * | 2017-08-23 | 2019-07-05 | 福建中电合创电力科技有限公司 | The method and system of detection SF6 leakage in a kind of electric system |
| CN109974937A (en) * | 2017-08-23 | 2019-07-05 | 福建中电合创电力科技有限公司 | The method and system of detection SF6 leakage based on O2, SF6 concentration and atmospheric pressure |
| CN109974940B (en) * | 2017-08-23 | 2020-11-10 | 福建中电合创电力科技有限公司 | Method and system for detecting SF6 leakage in power system |
| CN109974939B (en) * | 2017-08-23 | 2020-11-10 | 福建中电合创电力科技有限公司 | Method and system for comprehensively detecting SF6 leakage |
| CN108169321A (en) * | 2017-12-21 | 2018-06-15 | 中国科学院电子学研究所 | High pure nitrogen detection method and device |
| CN109297958A (en) * | 2018-11-13 | 2019-02-01 | 国网四川省电力公司成都供电公司 | It is a kind of for monitoring the colour developing prior-warning device of SF6 Electric Power Equipment Insulation gas decomposition product in real time |
| CN110243542A (en) * | 2019-05-31 | 2019-09-17 | 国网上海市电力公司 | A kind of SF6Gas leaks imaging detection method and detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhengzhou Relations System Engineering Co. Ltd. Assignor: Wang Xianzhong|Li Jianguo Contract fulfillment period: 2008.11.30 to 2013.12.30 Contract record no.: 2008410000182 Denomination of utility model: Quantitative SF gas leakage detector Granted publication date: 20070509 License type: Exclusive license Record date: 20081208 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.30 TO 2013.12.30; CHANGE OF CONTRACT Name of requester: ZHENG ZHOU HITACHI SYSTEM ENGINEERING CORPORATION Effective date: 20081208 |
|
| ASS | Succession or assignment of patent right |
Owner name: HENAN PROVINCE RILIXIN ELECTRONICS CO., LTD. Free format text: FORMER OWNER: WANG XIANZHONG Effective date: 20090605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: High tech Zone in Henan city of Zhengzhou Province bamboo Street No. 1 and its shares 6 storey building, zip code: 450001 Patentee after: Henan Relations Electronic Co., Ltd. Address before: 2 building, Zhengzhou University, Henan, Zhengzhou, zip code: 450052 Co-patentee before: Li Jianguo Patentee before: Wang dedicated |
|
| C56 | Change in the name or address of the patentee |
Owner name: HE NAN RELATIONS CO., LTD. Free format text: FORMER NAME: HENAN RELATIONS ELECTRONIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: High tech Zone Henan city Zhengzhou province 450001 bamboo Street No. 1 Building 6 layer relations shares Patentee after: Henan Rilixin Co., Ltd. Address before: High tech Zone Henan city Zhengzhou province 450001 bamboo Street No. 1 Building 6 layer relations shares Patentee before: Henan Relations Electronic Co., Ltd. |
|
| EM01 | Change of recordation of patent licensing contract |
Change date: 20110720 Contract record no.: 2008410000182 Assignor after: Henan Rilixin Co., Ltd. Assignor before: Wang Xianzhong Assignor before: Li Jianguo Change date: 20110720 Contract record no.: 2008410000182 Assignee after: Intelligence instrument system Engineering Co., Ltd of Henan Province Assignee before: Zhengzhou Relations System Engineering Co. Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |