CN205981803U - Gaseous accurate sampling device who detects of sulfur hexafluoride - Google Patents

Gaseous accurate sampling device who detects of sulfur hexafluoride Download PDF

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Publication number
CN205981803U
CN205981803U CN201620883578.0U CN201620883578U CN205981803U CN 205981803 U CN205981803 U CN 205981803U CN 201620883578 U CN201620883578 U CN 201620883578U CN 205981803 U CN205981803 U CN 205981803U
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China
Prior art keywords
sulfur hexafluoride
gas
valve
analytical tool
accurate
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CN201620883578.0U
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Chinese (zh)
Inventor
林福海
涂湛
周友武
邓永强
稂业员
贾蕗路
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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Priority to CN201620883578.0U priority Critical patent/CN205981803U/en
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Abstract

The utility model provides a gaseous accurate sampling device who detects of sulfur hexafluoride, is including electrical equipment (1), tee bend sample valve (2), analytical instrument admission valve (3), sulfur hexafluoride analytical instrument (4), the gas recovery device who fills sulfur hexafluoride admit air relief pressure valve (5), manometer (6) and gas recovery device (7). The utility model discloses the device can reach accurate sample to filling the gaseous circuit breaker of sulfur hexafluoride, mutual -inductor, transformer, GIS etc. Fast, and especially the sulfur hexafluoride equipment to being equipped with online moisture meter can emit into recovery unit with the gas that persists always fast in the online appearance, ensures the accurate quantitative determination of sulfur hexafluoride moisture content, decomposition product, purity. The device can practice thrift a large amount of check -out time to the accuracy that detects is greatly improved. The utility model discloses a be applicable to gas sampling, the analysis of filling in the gaseous electrical equipment of sulfur hexafluoride.

Description

A kind of accurate sampler of sulfur hexafluoride gas detection
Technical field
This utility model is related to a kind of accurate sampler of sulfur hexafluoride gas detection, belongs to High-Voltage Electrical Appliances Site Detection skill Art field.
Background technology
By moisture, catabolite, purity detecting, monitoring device are carried out to the electrical equipment filling sulfur hexafluoride gas Operation conditions has been a kind of generally acknowledged discovery electrical equipment malfunction, the effective means ensureing equipment safety operation.At present, electric power row Industry requires 110kV and the above electrical equipment filling sulfur hexafluoride to take within 3 years a sample to be detected, after every sub-sampling has connect instrument The immobilising gas of gas seam will be taken to drain only, and the gas pressure after instrument and flow will be all very little, this will be just Need to spend longer time, if gas of not checkmating drains only, can be very big on testing result impact, or even mislead production O&M people Member, leads to equipment to have an accident, and affects power grid security.
In recent years, sulfur hexafluoride moisture on-line monitoring technique detects as equipment outage analysis supplement and development, Because it has the advantages that continuous on-line monitoring, its application is for the timely fault finding electrical equipment, it is to avoid the generation of accident. Live on-Line Monitor Device is typically mounted on monitored equipment, takes gas interface to be connected with equipment, this also results in online water Divide full of the sulfur hexafluoride that do not flow with pressure such as equipment in the sensor cell of instrument, when electrical equipment will be taken with edema caused by disorder of QI analysis, this The gas that part retains will enter analytical tool, and then affects testing result.
The sampler of most of sulfur hexafluoride gas detection currently on the market, is all not equipped with exhaust apparatus, when need Take cumbersome during gas operation, waste time and energy, and testing result can be affected.
Content of the invention
The purpose of this utility model is, for the existing gas analyses time filling sulfur hexafluoride equipment longer, take gas joint And online Moisture Meter be contained within not flowing dead gas can be on the shortcoming of testing result impact, the utility model proposes a kind of sulfur hexafluoride The accurate sampler of gas detecting.
Realizing the technical solution of the utility model is, this device, before sulfur hexafluoride gas analysis, is reclaimed using gas Device air inlet air relief valve will take the gas retaining always in gas interface, online Moisture Meter rapidly to enter retracting device it is ensured that six Sulfur fluoride moisture, catabolite, the accurate quantitative analysis detection of purity.
A kind of accurate sampler of sulfur hexafluoride gas of this utility model detection include filling sulfur hexafluoride electrical equipment, Threeway sampling valve, analytical tool injection valve, sulfur hexafluoride analytical tool, gas concentration unit air inlet air relief valve, pressure gauge, gas Retracting device.The input port of threeway sampling valve connects the electrical equipment filling sulfur hexafluoride, the output port of threeway sampling valve its In one termination analytical tool injection valve, analytical tool injection valve connect sulfur hexafluoride analytical tool;Gas sample is analyzed through sulfur hexafluoride Gas concentration unit is entered back into after Instrumental Analysis;The other end of the output port of threeway sampling valve connects gas concentration unit air inlet Air relief valve, and in recovery pipe, a pressure gauge is installed, before gas analyses, the gas in equipment quickly can be entered back Receiving apparatus.
In the accurate sampler work being detected using sulfur hexafluoride gas, by fill sulfur hexafluoride gas chopper, The gas interface that takes of the equipment such as transformer, transformator, GIS is docked with the three-way valve of this device, then by returning after three-way valve Receiving apparatus air inlet air relief valve is slowly opened, when the pressure value of recovery pipe upward pressure table is 0.1MPa(Relative pressure)When, stop Air relief valve operates, and is maintained at this pressure and the sulfur hexafluoride gas in electrical equipment was entered retracting device in 1 minute, turns off decompression Valve.Open the injection valve of analytical tool, adjust gas flow, sulfur hexafluoride gas sample enters back into gas after instrument detection and reclaims Device is reclaimed.After detection terminates, close the injection valve of analytical tool, the gas interface that takes of electrical equipment is divided with this device From.
The beneficial effects of the utility model are that the accurate sampler of this utility model sulfur hexafluoride gas detection can be right Fill the chopper of sulfur hexafluoride gas, transformer, transformator, GIS etc. and carry out quick and accurate sampling, particularly to equipped with online The gas retaining always in online instrument rapidly can be entered retracting device it is ensured that hexafluoro by the sulfur hexafluoride equipment of Moisture Meter Change the accurate quantitative analysis detection of sulfur moisture, catabolite, purity.Save substantial amounts of detection time, substantially increase detection Accuracy and efficiency.
This utility model is applied to gas sample in the electrical equipment filling sulfur hexafluoride gas, analysis.
Brief description
Fig. 1 be this utility model equipment therefor structural representation;
In figure, 1 is the electrical equipment filling sulfur hexafluoride;2 is threeway sampling valve;3 is analytical tool injection valve;4 is hexafluoro Change Sulfur Analysis instrument;5 is gas concentration unit air inlet air relief valve;6 is pressure gauge;7 is gas concentration unit.
Specific embodiment
With reference to embodiments and compare accompanying drawing this utility model is described in detail.
As shown in figure 1, the accurate sampler of the present embodiment sulfur hexafluoride gas detection is by filling electrically setting of sulfur hexafluoride Standby 1, threeway sampling valve 2, analytical tool injection valve 3, sulfur hexafluoride analytical tool 4, gas concentration unit air inlet air relief valve 5, pressure Power table 6, gas concentration unit 7 form.
The input port of wherein threeway sampling valve 2 connects the electrical equipment 1 filling sulfur hexafluoride, the outfan of threeway sampling valve 2 Wherein one termination analytical tool injection valve 3 of mouth, analytical tool injection valve connects sulfur hexafluoride analytical tool;Gas sample is through lithium Gas concentration unit 7 is entered back into after Sulfur Analysis instrument 4 analysis;The other end of the output port of threeway sampling valve 2 connects gas and returns Receiving apparatus air inlet air relief valve 5, and in recovery pipe, a pressure gauge 6 is installed, can be by the gas in equipment before gas analyses Body quickly enters retracting device 7, thus realizing the rapidity of taken gas sample, accuracy.

Claims (2)

1. a kind of accurate sampler of sulfur hexafluoride gas detection is it is characterised in that described device includes filling sulfur hexafluoride Electrical equipment, threeway sampling valve, analytical tool injection valve, sulfur hexafluoride analytical tool, gas concentration unit air inlet air relief valve, pressure Power table and gas concentration unit;The input port of described threeway sampling valve connects the electrical equipment filling sulfur hexafluoride;Threeway sampling valve Output port wherein one termination analytical tool injection valve, analytical tool injection valve connect sulfur hexafluoride analytical tool;Gas sample Gas concentration unit is entered back into after Instrumental Analysis;The other end of the output port of threeway sampling valve connects gas concentration unit and enters Gas air relief valve, and in recovery pipe, a pressure gauge is installed, before gas analyses, the gas in equipment quickly can be entered Retracting device.
2. a kind of accurate sampler of sulfur hexafluoride gas detection is it is characterised in that described device can be to filling sulfur hexafluoride gas The chopper of body, transformer, transformator and GIS carry out quick and accurate sampling.
CN201620883578.0U 2016-08-16 2016-08-16 Gaseous accurate sampling device who detects of sulfur hexafluoride Active CN205981803U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620883578.0U CN205981803U (en) 2016-08-16 2016-08-16 Gaseous accurate sampling device who detects of sulfur hexafluoride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620883578.0U CN205981803U (en) 2016-08-16 2016-08-16 Gaseous accurate sampling device who detects of sulfur hexafluoride

Publications (1)

Publication Number Publication Date
CN205981803U true CN205981803U (en) 2017-02-22

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CN201620883578.0U Active CN205981803U (en) 2016-08-16 2016-08-16 Gaseous accurate sampling device who detects of sulfur hexafluoride

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Country Link
CN (1) CN205981803U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107957359A (en) * 2017-12-29 2018-04-24 中国科学院过程工程研究所 Reaction under high pressure process gas sampling method and device
CN108051032A (en) * 2017-12-20 2018-05-18 国网新疆电力有限公司吐鲁番供电公司 The on-line monitoring system of the few oily equipment of substation
CN112326596A (en) * 2020-10-30 2021-02-05 国网上海市电力公司 SF based on long-optical-path TDLAS technology6Online monitoring device for decomposed substances

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108051032A (en) * 2017-12-20 2018-05-18 国网新疆电力有限公司吐鲁番供电公司 The on-line monitoring system of the few oily equipment of substation
CN107957359A (en) * 2017-12-29 2018-04-24 中国科学院过程工程研究所 Reaction under high pressure process gas sampling method and device
CN107957359B (en) * 2017-12-29 2020-09-22 中国科学院过程工程研究所 Method and device for sampling gas in high-pressure reaction process
CN112326596A (en) * 2020-10-30 2021-02-05 国网上海市电力公司 SF based on long-optical-path TDLAS technology6Online monitoring device for decomposed substances

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