CN107694278A - A kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method - Google Patents

A kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method Download PDF

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Publication number
CN107694278A
CN107694278A CN201711101082.9A CN201711101082A CN107694278A CN 107694278 A CN107694278 A CN 107694278A CN 201711101082 A CN201711101082 A CN 201711101082A CN 107694278 A CN107694278 A CN 107694278A
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CN
China
Prior art keywords
air chamber
pressure
emission
micro
control unit
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.)
Pending
Application number
CN201711101082.9A
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Chinese (zh)
Inventor
赵世钦
周健
史纯清
姜海波
吴易
刘晓波
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Publication date
Application filed by Guizhou Power Grid Co Ltd filed Critical Guizhou Power Grid Co Ltd
Priority to CN201711101082.9A priority Critical patent/CN107694278A/en
Publication of CN107694278A publication Critical patent/CN107694278A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/45Compounds containing sulfur and halogen, with or without oxygen
    • C01B17/4507Compounds containing sulfur and halogen, with or without oxygen containing sulfur and halogen only
    • C01B17/4515Compounds containing sulfur and halogen, with or without oxygen containing sulfur and halogen only containing sulfur and fluorine only
    • C01B17/453Sulfur hexafluoride
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/20Halogens or halogen compounds
    • B01D2257/202Single element halogens
    • B01D2257/2027Fluorine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/30Sulfur compounds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/30Capture or disposal of greenhouse gases of perfluorocarbons [PFC], hydrofluorocarbons [HFC] or sulfur hexafluoride [SF6]

Abstract

The invention discloses a kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method, including self-sealing fast connecting joint one, level cache air chamber, ratio adjusting valve, diaphragm compression pump, check valve, L2 cache air chamber, ball valve and the self-sealing fast connecting joint two being sequentially connected, differential pressure pick-up is provided with level cache air chamber, pressure sensor is provided with L2 cache air chamber, self-sealing fast connecting joint two is connected to the gas interface of air bottle.The present invention accesses Zero emission device by the exhaust emissions section of detection device and carries out tail gas recycle, carries out reclaiming clean processing to tail gas after experiment, both realizes SF6The zero-emission and recycling of tail gas, also ensure that SF6Outer row influences to caused by environment, and in the range of realizing that the pressure of level cache air chamber remains at and do not influence experiment, reduces the influence to results precision, monitor SF in real time6Storage pressure and discharged in time, security incident caused by avoiding pressure excessive.

Description

A kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method
Technical field
The invention belongs to sulphur hexafluoride emission reclaimer technical field, and in particular to a kind of sulfur hexafluoride tests zero-emission Retracting device and its operating method.
Background technology
Recent years, SF6Due to greenhouse effects(Greenhouse effects are CO223900 times)Paid high attention to by people, ring Guarantor department and power system require SF in production work always6Must zero-emission, but at present except maintenance when SF6Use retracting device Carry out recovery to realize outside zero-emission, live SF6Humidity measurement and catabolite detect tail gas when testing and reclaim function due to lacking Mostly it is discharged into always in air, although once experiment is few, considers SF6Equipment is numerous, and annual tested number is very big, makes Into discharge capacity take care of the pence, contaminant capacity is very big.
The content of the invention
Present invention solves the technical problem that it is:A kind of sulfur hexafluoride experiment zero-emission retracting device and its operation side are provided Method, to solve above-mentioned problems of the prior art.
The technical scheme that the present invention takes is:A kind of sulfur hexafluoride tests zero-emission retracting device, including be sequentially connected Self-sealing fast connecting joint one, level cache air chamber, ratio adjusting valve, diaphragm compression pump, check valve, L2 cache air chamber, Ball valve and self-sealing fast connecting joint two, differential pressure pick-up is provided with level cache air chamber, is set on L2 cache air chamber There is pressure sensor, self-sealing fast connecting joint two is connected to the gas interface of air bottle.
Preferably, above-mentioned differential pressure pick-up and pressure sensor are connected to the signal receiving end of micro-control unit, microcontroller The control terminal of unit is connected to ratio adjusting valve and diaphragm compression pump.
Preferably, above-mentioned differential pressure pick-up and pressure sensor are all connected to AD samplers, and AD samplers are connected to micro-control Unit processed.
Preferably, above-mentioned micro-control unit is connected to ratio adjusting valve by D/A converter.
Preferably, a kind of operating method of above-mentioned sulfur hexafluoride experiment zero-emission retracting device, this method include:
(1)SF6The arrival end of the exhaust end connection self-sealing fast connecting joint one of instrumentation, wherein self-sealing snap joint Using the big Lip river gram snap joint of generation, the joint is self-styled when not connecting external equipment;
(2)Instrumentation tail gas flows into level cache air chamber by snap joint one, and level cache air chamber is under normal circumstances It is maintained at an atmospheric pressure;
(3)Differential pressure pick-up detects error of measurement between level cache plenum interior pressure and external pressure, and by level cache gas During chamber internal pressure increase by differential pressure pick-up differential pressure signal by being sent into micro-control unit after AD sampler samples;
(4)When the differential pressure signal that micro-control unit measures is more than 50Pa, micro-control unit controls diaphragm compression pump is opened, simultaneously Control ratio adjusting valve opening degree, it is ensured that level cache plenum interior pressure is maintained at the ± 50Pa of atmospheric pressure scope Interior, guarantee does not have an impact to test instrumentation;
(5)Unnecessary gas is suppressed by diaphragm compression pump and enters L2 cache air chamber by check valve, works as pressure sensor When the L2 cache plenum interior pressure measured reaches 1Mpa, the pressure signal for the pressure sensor that micro-control unit receives is simultaneously Control detection SF6Instrument is stopped;
(6)The self-sealing fast connecting joint that level 2 buffering air chamber connects is connected to air bottle, while opens ball valve, release two The internal gas air inlet bottle of level caching air chamber, until L2 cache air chamber pressure is returned in an atmospheric pressure, disconnect ball Valve, restart detecting instrument, repeat step(1)-(6).
Beneficial effects of the present invention:Compared with prior art, the present invention accesses zero by the exhaust emissions section of detection device Tapping equipment carry out tail gas recycle, after experiment to tail gas carry out reclaiming clean processing, both realized SF6 tail gas zero-emission and Recycle, also ensure that and the influence to caused by environment is arranged outside SF6, gas is carried out using level cache air chamber and differential pressure pick-up The real-time monitoring of pressure, so as to according to ratio adjusting valve and diaphragm compression pump, realize that the pressure of level cache air chamber is protected all the time Hold in the range of experiment is not influenceed, reduce the influence to results precision, gas is carried out additionally by L2 cache air chamber Interim storage, by pressure sensor carry out in real time monitor and discharged in time, safe thing caused by avoiding pressure excessive Therefore.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described further specific embodiment.
Embodiment 1:As shown in figure 1, a kind of sulfur hexafluoride experiment zero-emission retracting device, including the self-sealing being sequentially connected Fast connecting joint 1, level cache air chamber 2, ratio adjusting valve 3, diaphragm compression pump 4, check valve 5, L2 cache air chamber 6, Ball valve 7 and self-sealing fast connecting joint 28, differential pressure pick-up 21, L2 cache air chamber 6 are provided with level cache air chamber 2 On be provided with pressure sensor 61, self-sealing fast connecting joint 28 is connected to the gas interface of air bottle.
Preferably, above-mentioned differential pressure pick-up 21 and pressure sensor 61 are connected to the signal receiving end of micro-control unit 9, micro- The control terminal of control unit 9 is connected to ratio adjusting valve 3 and diaphragm compression pump 4.
Preferably, above-mentioned differential pressure pick-up 21 and pressure sensor 61 are all connected to AD samplers 10, and AD samplers 10 connect It is connected to micro-control unit 9.
Preferably, above-mentioned micro-control unit 9 is connected to ratio adjusting valve 3 by D/A converter.
Preferably, a kind of operating method of above-mentioned sulfur hexafluoride experiment zero-emission retracting device, this method include:
(1)SF6The arrival end of the exhaust end connection self-sealing fast connecting joint one of instrumentation, wherein self-sealing snap joint Using the big Lip river gram snap joint of generation, the joint is self-styled when not connecting external equipment;
(2)Instrumentation tail gas flows into level cache air chamber by snap joint one;Level cache air chamber is under normal circumstances An atmospheric pressure is maintained at, with the inflow of gas, the not short increase of internal pressure of level cache air chamber;
(3)Differential pressure pick-up detects error of measurement between level cache plenum interior pressure and external pressure, and by level cache gas Differential pressure signal is sent into by differential pressure pick-up by micro-control unit during chamber internal pressure increase;
(4)When the differential pressure signal that micro-control unit measures is more than 50Pa, micro-control unit controls diaphragm compression pump is opened, simultaneously Control ratio adjusting valve opening degree, it is ensured that level cache plenum interior pressure is maintained at the ± 50Pa of atmospheric pressure scope It is interior;
(5)Unnecessary gas is suppressed by diaphragm compression pump and enters L2 cache air chamber by check valve, works as pressure sensor When the L2 cache plenum interior pressure measured reaches 1Mpa, the pressure signal for the pressure sensor that micro-control unit receives is simultaneously Control detection SF6Instrument is stopped;
(6)The self-sealing fast connecting joint that level 2 buffering air chamber connects is connected to air bottle, while opens ball valve, release two The internal gas air inlet bottle of level caching air chamber, until L2 cache air chamber pressure is returned in an atmospheric pressure, disconnect ball Valve, restart detecting instrument, repeat step(1)-(6).
The foregoing is only a specific embodiment of the invention example, protection scope of the present invention are not limited thereto.It is ripe Know the those skilled in the art the invention discloses technical scope in, change or replacement mode can be easily found, these It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim Enclose and be defined.

Claims (5)

1. a kind of sulfur hexafluoride tests zero-emission retracting device, it is characterised in that:Self-sealing including being sequentially connected quickly connects Joint one(1), level cache air chamber(2), ratio adjusting valve(3), diaphragm compression pump(4), check valve(5), L2 cache air chamber (6), ball valve(7)With self-sealing fast connecting joint two(8), level cache air chamber(2)On be provided with differential pressure pick-up(21), two Level caching air chamber(6)On be provided with pressure sensor(61), self-sealing fast connecting joint two(8)It is connected to the gas of air bottle Interface.
A kind of 2. sulfur hexafluoride experiment zero-emission retracting device according to claim 1, it is characterised in that:Differential pressure pick-up (21)And pressure sensor(61)It is connected to micro-control unit(9)Signal receiving end, micro-control unit(9)Control terminal connection To ratio adjusting valve(3)With diaphragm compression pump(4).
A kind of 3. sulfur hexafluoride experiment zero-emission retracting device according to claim 2, it is characterised in that:Differential pressure pick-up (21)And pressure sensor(61)It is all connected to AD samplers(10), AD samplers(10)It is connected to micro-control unit(9).
A kind of 4. sulfur hexafluoride experiment zero-emission retracting device according to claim 2, it is characterised in that:Micro-control unit (9)Ratio adjusting valve is connected to by D/A converter(3).
5. testing the operating method of zero-emission retracting device according to a kind of any described sulfur hexafluorides of claim 1-4, it is special Sign is:This method includes:
(1)The arrival end of the exhaust end connection self-sealing fast connecting joint one of SF6 instrumentations;
(2)Instrumentation tail gas flows into level cache air chamber by snap joint one, and level cache air chamber is under normal circumstances It is maintained at an atmospheric pressure;
(3)Differential pressure pick-up detects error of measurement between level cache plenum interior pressure and external pressure, and by level cache gas Differential pressure signal is sent into by differential pressure pick-up by micro-control unit during chamber internal pressure increase;
(4)When the differential pressure signal that micro-control unit measures is more than 50Pa, micro-control unit controls diaphragm compression pump is opened, simultaneously Control ratio adjusting valve opening degree, it is ensured that level cache plenum interior pressure is maintained at the ± 50Pa of atmospheric pressure scope It is interior;
(5)Unnecessary gas is suppressed by diaphragm compression pump and enters L2 cache air chamber by check valve, works as pressure sensor When the L2 cache plenum interior pressure measured reaches 1Mpa, the pressure signal for the pressure sensor that micro-control unit receives is simultaneously Control detection SF6Instrument is stopped;
(6)The self-sealing fast connecting joint that level 2 buffering air chamber connects is connected to air bottle, while opens ball valve, release two The internal gas air inlet bottle of level caching air chamber, until L2 cache air chamber pressure is returned in an atmospheric pressure, disconnect ball Valve, restart detecting instrument, repeat step(1)-(6).
CN201711101082.9A 2017-11-10 2017-11-10 A kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method Pending CN107694278A (en)

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CN201711101082.9A CN107694278A (en) 2017-11-10 2017-11-10 A kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method

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Application Number Priority Date Filing Date Title
CN201711101082.9A CN107694278A (en) 2017-11-10 2017-11-10 A kind of sulfur hexafluoride experiment zero-emission retracting device and its operating method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375200A (en) * 2019-07-29 2019-10-25 云南电网有限责任公司昭通供电局 A kind of zero-emission SF6 pressure balancing system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921266A (en) * 2012-10-19 2013-02-13 深圳供电局有限公司 Tail gas recovery device for sulfur hexafluoride gas test instrument
CN103463925A (en) * 2013-09-14 2013-12-25 河南省日立信股份有限公司 Tail gas recovery device based on pressure balance control method
CN103495443A (en) * 2013-09-29 2014-01-08 广州供电局有限公司 Centralized control recycling device and method for waste gas in laboratory
CN104806876A (en) * 2015-04-21 2015-07-29 国家电网公司 Sulfur hexafluoride gas field test tail gas constant pressure recycling device and method
CN106989267A (en) * 2017-03-31 2017-07-28 南京南瑞集团公司 SF6 in-situs testers device for recovering tail gas and method for recovering tail gas
CN207478237U (en) * 2017-11-10 2018-06-12 贵州电网有限责任公司 A kind of sulfur hexafluoride tests zero-emission retracting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921266A (en) * 2012-10-19 2013-02-13 深圳供电局有限公司 Tail gas recovery device for sulfur hexafluoride gas test instrument
CN103463925A (en) * 2013-09-14 2013-12-25 河南省日立信股份有限公司 Tail gas recovery device based on pressure balance control method
CN103495443A (en) * 2013-09-29 2014-01-08 广州供电局有限公司 Centralized control recycling device and method for waste gas in laboratory
CN104806876A (en) * 2015-04-21 2015-07-29 国家电网公司 Sulfur hexafluoride gas field test tail gas constant pressure recycling device and method
CN106989267A (en) * 2017-03-31 2017-07-28 南京南瑞集团公司 SF6 in-situs testers device for recovering tail gas and method for recovering tail gas
CN207478237U (en) * 2017-11-10 2018-06-12 贵州电网有限责任公司 A kind of sulfur hexafluoride tests zero-emission retracting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375200A (en) * 2019-07-29 2019-10-25 云南电网有限责任公司昭通供电局 A kind of zero-emission SF6 pressure balancing system

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Inventor after: Zhao Shiqin

Inventor after: Zhang Ying

Inventor after: Zhou Jian

Inventor after: Shi Chunqing

Inventor after: Jiang Haibo

Inventor after: Wu Yi

Inventor after: Liu Xiaobo

Inventor before: Zhao Shiqin

Inventor before: Zhou Jian

Inventor before: Shi Chunqing

Inventor before: Jiang Haibo

Inventor before: Wu Yi

Inventor before: Liu Xiaobo

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