CN102179150A - Tail gas purification device for detecting sulfur hexafluoride decomposition products and method thereof - Google Patents

Tail gas purification device for detecting sulfur hexafluoride decomposition products and method thereof Download PDF

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Publication number
CN102179150A
CN102179150A CN2011100777399A CN201110077739A CN102179150A CN 102179150 A CN102179150 A CN 102179150A CN 2011100777399 A CN2011100777399 A CN 2011100777399A CN 201110077739 A CN201110077739 A CN 201110077739A CN 102179150 A CN102179150 A CN 102179150A
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China
Prior art keywords
sodium hydroxide
hydroxide solution
sulfur hexafluoride
catabolite
absorption bottle
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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
CN2011100777399A
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Chinese (zh)
Inventor
杜黎明
张利燕
刘克成
张若飞
杨彦肖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
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Application filed by Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd filed Critical Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Priority to CN2011100777399A priority Critical patent/CN102179150A/en
Publication of CN102179150A publication Critical patent/CN102179150A/en
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    • 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]
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/151Reduction of greenhouse gas [GHG] emissions, e.g. CO2

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  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention refers to tail gas purification device for detecting sulfur hexafluoride decomposition products and a method thereof; the device comprises an absorption bottle, a closing plug arranged on the bottle opening, and an intake tube and an exhaust tube arranged inside the absorption bottle; sodium hydroxide solution with a concentration of 0.1 mol/L is filled in the absorption bottle; the tail end of the intake tube is extended in the solution; the tail end of the exhaust tube is positioned inside a space between the solution liquid level and the closing plug; and the method comprises the following steps of: preparing 0.1 mol/L sodium hydroxide solution; filling the detected tail gas in the sodium hydroxide solution to react, wherein decomposition products are absorbed by the sodium hydroxide solution, and non-toxic sulfur hexafluoride gas generated by the reaction is discharged out through the exhaust tube; and neutralizing the used sodium hydroxide solution by using 0.1 mol/L sulfuric acid solution to be neutral and then discharging. The device and the method are simple to operate and reliable to use, thereby solving the problem that the sulfur hexafluoride decomposition product gases on the spot are harmful for human body and improving the work efficiency.

Description

A kind of exhaust gas cleaner and method that is used for the detection of sulfur hexafluoride catabolite
Technical field
The present invention relates to a kind of exhaust gas cleaner and method that the sulfur hexafluoride catabolite detects that be used for, belong to the electrical equipment field.
Technical background
Pure sulfur hexafluoride gas is a kind of nontoxic and gas with good insulation performance, by generally as the insulating gas of electrical equipment, though pure SF 6Gas is nontoxic, but SF 6Gas can contain a certain amount of catabolite move a period of time in breaker after, and these catabolites all have toxicity.SF in the electrical equipment 6The source of the poisonous decomposed substance of gas is as follows: the SF in the one, electrical equipment 6Gas produces some toxic products under the high-temperature electric arc effect; Its two, the SF in the electrical equipment 6Gas analyte and the moisture in it or electrode, insulating materials reaction generate some noxious material.In case these toxic gases and powder leak out, can stimulate people's skin, eyes, human respiratory is caused certain injury.At present, in order to monitor gaseous mass in the operation sulfur hexafluoride electrical equipment, utilize sulfur hexafluoride catabolite instrument that gas is detected, even if in the testing process in the emission gases catabolite of trace also can constitute injury to the staff, this brings certain threat for personal safety of testing staff.
The utility model content
Problem to be solved by this invention provide a kind of simple to operate, easy to use and guarantee the staff personal safety be used for exhaust gas cleaner and the method that the sulfur hexafluoride catabolite detects.
The present invention adopts following technical scheme:
The present invention is used for the exhaust gas cleaner that the sulfur hexafluoride catabolite detects and comprises absorption bottle, is arranged on the sealing-plug on the absorption bottle bottleneck and is arranged on air inlet pipe and blast pipe in the absorption bottle by sealing-plug, it is the 0.1mol/L sodium hydroxide solution that concentration is housed in the described absorption bottle, described air inlet pipe end stretches in the 0.1mol/L sodium hydroxide solution, in the space of blast pipe end between 0.1mol/L sodium hydroxide solution liquid level and sealing-plug.
The exhaust purifying method that is used for the detection of sulfur hexafluoride catabolite of the present invention may further comprise the steps:
(1). preparation 0.1mol/L sodium hydroxide solution:
Analytically pure NaOH is inserted in the deionized water, in course of dissolution, stir, add deionized water amount to make the concentration of sodium hydroxide solution be 0.1mol/L, it is exothermic reaction that NaOH is analyzed pure reaction of dissolving in deionized water, treats that solution temperature reduces to can put into to the room temperature describedly to be used for the exhaust gas cleaner that the sulfur hexafluoride catabolite detects and to be used as sulfur hexafluoride catabolite absorption liquid;
(2). the tail gas that the sulfur hexafluoride catabolite is detected feeds in the 0.1mol/L sodium hydroxide solution by air inlet pipe and reacts the catabolite SOF in the sulfur hexafluoride gas 2, SO 2, HF, H 2S is absorbed by the 0.1mol/L sodium hydroxide solution, and reaction equation is:
SOF 2+H 2O=SO 2+2HF
SO 2+H 2O=H 2SO 3
H 2SO 3+2NaOH=Na 2SO 3+2H 2O
HF+NaOH=NaF+?H 2O
H 2S?+2NaOH=Na 2S+2H 2O;
(3). the nontoxic sulfur hexafluoride gas that reaction generates is discharged by blast pipe;
(4). the sulfuric acid solution with 0.1mol/L is neutralized to the discharging of neutral back with used 0.1mol/L sodium hydroxide solution.
Good effect of the present invention is as follows:
Apparatus of the present invention and method are used in transformer station's electrical equipment sulfur hexafluoride gas catabolite process of the test, when carrying out the test of sulfur hexafluoride catabolite at the scene device is connected catabolite instrument end, the toxic gas that detects in the waste gas can be absorbed fully, guarantee on-the-spot detection and staff's personal safety, the present invention is simple to operate, use reliably, having solved at the scene, sulfur hexafluoride catabolite gas has improved operating efficiency to the problem that human body damages.
Description of drawings
Accompanying drawing 1 structural representation of the present invention;
Accompanying drawing 2 is the syndeton schematic diagram of sealing-plug of the present invention and air inlet pipe and blast pipe.
In the accompanying drawings: 1 air inlet pipe, 2 sealing-plugs, 3 blast pipes, 4 0.1mol/L sodium hydroxide solutions, 5 absorption bottles.
The specific embodiment
As accompanying drawing 1, shown in 2, the exhaust gas cleaner that the present invention is used for the detection of sulfur hexafluoride catabolite comprises absorption bottle 5, be arranged on the sealing-plug 2 on absorption bottle 5 bottlenecks and be arranged on air inlet pipe 1 and blast pipe 3 in the absorption bottle 5 by sealing-plug 2, described sealing-plug can be rubber stopper, described air inlet pipe 1 and blast pipe 3 can be glass tube, plastic tube or pvc pipe etc., it is 0.1mol/L sodium hydroxide solution 4 that concentration is housed in the described absorption bottle 5, described air inlet pipe 1 end is arranged in the 0.1mol/L sodium hydroxide solution 4, and blast pipe 3 ends are arranged in the space between 0.1mol/L sodium hydroxide solution 4 liquid levels and the sealing rubber plug 2.
The exhaust purifying method that is used for the detection of sulfur hexafluoride catabolite of the present invention may further comprise the steps:
(1). preparation 0.1mol/L sodium hydroxide solution:
Getting 4 gram NaOH analyzes pure, it is even to insert 1 liter of deionized water for stirring, it is exothermic reaction that NaOH is analyzed pure reaction of dissolving in deionized water, treats that solution temperature reduces to can put into to the room temperature describedly to be used for the exhaust gas cleaner that the sulfur hexafluoride catabolite detects and to be used as sulfur hexafluoride catabolite absorption liquid;
(2). the tail gas that the sulfur hexafluoride catabolite is detected feeds in the 0.1mol/L sodium hydroxide solution 4 by air inlet pipe 1 and reacts the catabolite SOF in the sulfur hexafluoride gas 2, SO 2, HF, H 2S is absorbed by 0.1mol/L sodium hydroxide solution 4, and reaction equation is:
SOF 2+H 2O=SO 2+2HF
SO 2+H 2O=H 2SO 3
H 2SO 3+2NaOH=Na 2SO 3+2H 2O
HF+NaOH=NaF+?H 2O
H 2S?+2NaOH=Na 2S+2H 2O
(3). the nontoxic sulfur hexafluoride gas that reaction generates is discharged by blast pipe 3;
(4). the sulfuric acid solution with 0.1mol/L is neutralized to the discharging of neutral back with used 0.1mol/L sodium hydroxide solution 4.
As shown in Figure 1, when carrying out the test of sulfur hexafluoride catabolite at the scene air inlet pipe 1 is connected catabolite instrument end, then can be absorbed fully, on blast pipe 3, connect plastic flexible pipe and cause the SF after the discharging detection outside 3 meters by the toxic gas that 0.1mol/L sodium hydroxide solution 4 will detect in the waste gas 6Gas; 0.1mol/L sodium hydroxide solution 4 is used to absorb the sulfur hexafluoride gas catabolite, if concentration is too high, then is spread across on the human body and can causes burn, the too low absorption cleaning effect that then do not have of concentration.
The present invention is used in transformer station's electrical equipment sulfur hexafluoride gas catabolite process of the test, when carrying out the test of sulfur hexafluoride catabolite at the scene air inlet pipe 1 is connected catabolite instrument end, can absorb fully by the toxic gas that 0.1mol/L sodium hydroxide solution 4 will detect in the waste gas, guarantee on-the-spot detection and staff's personal safety, the present invention is simple to operate, use reliable, having solved at the scene, sulfur hexafluoride catabolite gas has improved operating efficiency to the problem that human body damages.

Claims (2)

1. one kind is used for the exhaust gas cleaner that the sulfur hexafluoride catabolite detects, it is characterized in that it comprises absorption bottle (5), be arranged on the sealing-plug (2) on absorption bottle (5) bottleneck and be arranged on air inlet pipe (1) and blast pipe (3) in the absorption bottle (5) by sealing-plug (2), it is 0.1mol/L sodium hydroxide solution (4) that concentration is housed in the described absorption bottle (5), described air inlet pipe (1) end stretches in 0.1mol/L sodium hydroxide solution (4), and blast pipe (3) end is positioned at the space between 0.1mol/L sodium hydroxide solution (4) liquid level and the sealing-plug (2).
2. one kind according to claim 1ly is used for the exhaust purifying method that the sulfur hexafluoride catabolite detects, and it is characterized in that it may further comprise the steps:
(1). preparation 0.1mol/L sodium hydroxide solution:
Analytically pure NaOH is inserted in the deionized water, in course of dissolution, stir, add deionized water amount to make the concentration of sodium hydroxide solution be 0.1mol/L, it is exothermic reaction that NaOH is analyzed pure reaction of dissolving in deionized water, treats that solution temperature reduces to can put into to the room temperature describedly to be used for the exhaust gas cleaner that the sulfur hexafluoride catabolite detects and to be used as sulfur hexafluoride catabolite absorption liquid;
(2). the tail gas that the sulfur hexafluoride catabolite is detected is by reacting the catabolite SOF in the sulfur hexafluoride gas in air inlet pipe (1) the feeding 0.1mol/L sodium hydroxide solution (4) 2, SO 2, HF, H 2S is absorbed by 0.1mol/L sodium hydroxide solution (4), and reaction equation is:
SOF 2+H 2O=SO 2+2HF
SO 2+H 2O=H 2SO 3
H 2SO 3+2NaOH=Na 2SO 3+2H 2O
HF+NaOH=NaF+?H 2O
H 2S?+2NaOH=Na 2S+2H 2O;
(3). the nontoxic sulfur hexafluoride gas that reaction generates is discharged by blast pipe (3);
(4). the sulfuric acid solution with 0.1mol/L is neutralized to the discharging of neutral back with used 0.1mol/L sodium hydroxide solution (4).
CN2011100777399A 2011-03-30 2011-03-30 Tail gas purification device for detecting sulfur hexafluoride decomposition products and method thereof Pending CN102179150A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102698553A (en) * 2012-06-05 2012-10-03 力合科技(湖南)股份有限公司 Gas washing bottle
CN105762674A (en) * 2016-04-29 2016-07-13 句容华源电器设备有限公司 Explosion-proof insulating box
CN107561209A (en) * 2017-08-03 2018-01-09 国网安徽省电力公司电力科学研究院 Sulfur hexafluoride gas acidity detection method and device
CN108731880A (en) * 2018-05-03 2018-11-02 北京华电中试电力工程有限责任公司 SF in a kind of high-voltage isulation equipment6Gas detection method and system
CN110927340A (en) * 2019-12-06 2020-03-27 西安锐驰电器有限公司 Method for detecting concentration of gas decomposition product in high-voltage power equipment
CN112403174A (en) * 2020-10-30 2021-02-26 湖北工业大学 Insulating gas degradation device
CN118594204A (en) * 2024-08-08 2024-09-06 福州亿得隆电气技术有限公司 Multistage purification device for recycling sulfur hexafluoride and perfluoroisobutyronitrile gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2487440Y (en) * 2001-06-16 2002-04-24 浦晴岘 Closed device for preparing toxic gas
CN101607171A (en) * 2009-07-07 2009-12-23 吉林农业大学 Be used for being absorbed in odor generated triple-combined absorption liquid of composting production process and application process thereof
CN201545698U (en) * 2009-05-12 2010-08-11 常州海立普电力科技有限公司 SF6 gas recovery device
CN202061542U (en) * 2011-03-30 2011-12-07 河北省电力研究院 Tail-gas purification device for sulfur hexafluoride catabolite detection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2487440Y (en) * 2001-06-16 2002-04-24 浦晴岘 Closed device for preparing toxic gas
CN201545698U (en) * 2009-05-12 2010-08-11 常州海立普电力科技有限公司 SF6 gas recovery device
CN101607171A (en) * 2009-07-07 2009-12-23 吉林农业大学 Be used for being absorbed in odor generated triple-combined absorption liquid of composting production process and application process thereof
CN202061542U (en) * 2011-03-30 2011-12-07 河北省电力研究院 Tail-gas purification device for sulfur hexafluoride catabolite detection

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102698553A (en) * 2012-06-05 2012-10-03 力合科技(湖南)股份有限公司 Gas washing bottle
CN105762674A (en) * 2016-04-29 2016-07-13 句容华源电器设备有限公司 Explosion-proof insulating box
CN107561209A (en) * 2017-08-03 2018-01-09 国网安徽省电力公司电力科学研究院 Sulfur hexafluoride gas acidity detection method and device
CN108731880A (en) * 2018-05-03 2018-11-02 北京华电中试电力工程有限责任公司 SF in a kind of high-voltage isulation equipment6Gas detection method and system
CN110927340A (en) * 2019-12-06 2020-03-27 西安锐驰电器有限公司 Method for detecting concentration of gas decomposition product in high-voltage power equipment
CN112403174A (en) * 2020-10-30 2021-02-26 湖北工业大学 Insulating gas degradation device
CN118594204A (en) * 2024-08-08 2024-09-06 福州亿得隆电气技术有限公司 Multistage purification device for recycling sulfur hexafluoride and perfluoroisobutyronitrile gas

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Address after: 050021 No. 238 South Sports street, Yuhua Road, Hebei, Shijiazhuang

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Application publication date: 20110914