CN115055027A - Insulating medium purifies and air supplement unit in insulating gas switch cabinet air chamber of environmental protection - Google Patents

Insulating medium purifies and air supplement unit in insulating gas switch cabinet air chamber of environmental protection Download PDF

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Publication number
CN115055027A
CN115055027A CN202210801163.4A CN202210801163A CN115055027A CN 115055027 A CN115055027 A CN 115055027A CN 202210801163 A CN202210801163 A CN 202210801163A CN 115055027 A CN115055027 A CN 115055027A
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CN
China
Prior art keywords
gas
air
switch cabinet
communicated
supplying
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
CN202210801163.4A
Other languages
Chinese (zh)
Inventor
王光增
刘国良
徐宏
朱重希
胡遨洋
李鑫
花志伟
刘伟豪
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 Zhejiang Electric Power Co Ltd Tongxiang Power Supply Co
Tongxiang Electric Power Engineering Co ltd
Original Assignee
State Grid Zhejiang Electric Power Co Ltd Tongxiang Power Supply Co
Hubei University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Zhejiang Electric Power Co Ltd Tongxiang Power Supply Co, Hubei University of Technology filed Critical State Grid Zhejiang Electric Power Co Ltd Tongxiang Power Supply Co
Priority to CN202210801163.4A priority Critical patent/CN115055027A/en
Publication of CN115055027A publication Critical patent/CN115055027A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/02—Separation 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 by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation 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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/055—Features relating to the gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/122—Gaseous reactants

Abstract

The invention discloses an insulating medium purifying and air supplementing device in an air chamber of an environment-friendly insulating gas switch cabinet, which comprises a purifying mechanism and an air supplementing mechanism; the purification mechanism comprises a purification tank, a compressor and a first pressure reducing valve; the air supplement mechanism is used for filling environment-friendly insulating gas into the switch cabinet air chamber. The invention has the beneficial effects that: the environment-friendly insulating medium which is not purified in the switch cabinet air chamber is completely filled into the purification tank through the compressor at a certain pressure, decomposition products and moisture in the environment-friendly insulating medium which is not purified are adsorbed by an adsorbent in the purification tank, the first pressure reducing valve is opened again, the purified insulating medium in the purification tank can be filled into the switch cabinet air chamber, then the environment-friendly insulating gas is filled into the switch cabinet air chamber through the gas supplementing mechanism, the content of the environment-friendly insulating gas in the switch cabinet air chamber can reach a required value, so that the decomposition products of the environment-friendly insulating medium in the switch cabinet air chamber can be treated through the device, and a large amount of waste of the environment-friendly insulating medium can not be caused.

Description

Insulating medium purifies and air supplement unit in insulating gas switch cabinet air chamber of environmental protection
Technical Field
The invention relates to the technical field of auxiliary equipment of an environment-friendly insulating gas switch cabinet, in particular to a device for purifying and supplementing insulating media in an air chamber of the environment-friendly insulating gas switch cabinet.
Background
Novel environment-friendly insulating gas C 4 F 7 N、C 5 F 10 O、C 6 F 12 O and the like are considered to replace the traditional insulating gas SF in medium and low voltage switch cabinets due to the lower Global Warming Potential (GWP) and better insulating property 6 For example, chinese patent application No. CN 201680041944.0.
When the novel environment-friendly insulating gas equipment runs for a long time, the insulating medium can be decomposed due to discharge and overheating faults, partial decomposition products have higher greenhouse effect potential values, atmospheric service life and certain toxicity, and the existence of the decomposition products can also reduce the insulating property of the equipment, thereby causing serious equipment faults and personnel safety problems. However, a great deal of waste is caused by replacing the environment-friendly insulating medium in the air chamber of the switch cabinet, so that how to conveniently treat the decomposition product of the environment-friendly insulating medium in the air chamber of the switch cabinet is a hot point problem.
Disclosure of Invention
In view of the above, there is a need for an apparatus for purifying and supplying an insulating medium in an air chamber of an environmentally-friendly insulated gas switchgear for conveniently treating decomposition products of the environmentally-friendly insulating medium in the air chamber of the switchgear.
In order to realize the aim, the invention provides an insulating medium purifying and air supplementing device in an air chamber of an environment-friendly insulating gas switch cabinet, which comprises a purifying mechanism and an air supplementing mechanism;
the purification mechanism comprises a purification tank, a compressor and a first pressure reducing valve, wherein a closed purification cavity is formed in the purification tank, an adsorbent is filled in the purification cavity, a purified gas inlet and a purified gas outlet which are communicated with the purification cavity are formed in the purification tank, the inlet of the compressor is communicated with a switch cabinet air chamber interface, the outlet of the compressor is communicated with the purified gas inlet, one end of the first pressure reducing valve is communicated with the purified gas outlet, and the other end of the first pressure reducing valve is communicated with the switch cabinet air chamber interface;
the air supplement mechanism is used for filling environment-friendly insulating gas into the switch cabinet air chamber.
In some embodiments, the device for purifying and supplying insulating medium in the air chamber of the environment-friendly insulating gas switch cabinet further comprises a detection mechanism, the detection mechanism comprises a connecting pipeline, an air main valve and a first pressure detection piece, one end of the connecting pipeline is communicated with the interface of the air chamber of the switch cabinet, the other end of the connecting pipeline is communicated with the inlet of the compressor and the air supply mechanism, and the air main valve and the first pressure detection piece are arranged on the connecting pipeline.
In some embodiments, the purification mechanism further comprises a gas purification valve, one end of the gas purification valve is communicated with the other end of the connecting pipeline, and the other end of the gas purification valve is communicated with the inlet of the compressor.
In some embodiments, the purge mechanism further comprises a second pressure sensing member in communication with the purge chamber and configured to sense a pressure within the purge chamber.
In some embodiments, the adsorbent comprises activated alumina and a molecular sieve.
In some embodiments, the air supply mechanism includes an air supply tank and an air distribution piece, the air supply tank has a closed air supply cavity, the air supply tank is provided with an air supply inlet and an air supply outlet, the air supply inlet and the air supply outlet are communicated with the air supply cavity, the air supply outlet is communicated with the other end of the connecting pipeline, and the air distribution piece is communicated with the air supply inlet and is used for filling environment-friendly insulating gas into the air supply cavity.
In some embodiments, the air make-up mechanism further comprises a second pressure reducing valve, one end of the second pressure reducing valve is communicated with the air make-up outlet, and the other end of the second pressure reducing valve is communicated with the other end of the connecting pipeline.
In some embodiments, the gas supply mechanism further comprises a third pressure detection element, wherein the third pressure detection element is communicated with the gas supply cavity and is used for detecting the gas pressure in the gas supply cavity.
In some embodiments, the gas distribution member comprises a gas distribution instrument, an environmentally-friendly insulating gas storage tank and a buffer gas storage tank, the gas distribution instrument has two gas distribution inlets and one gas distribution outlet, the gas distribution outlet is communicated with the gas supply cavity, and the two gas distribution inlets are respectively communicated with the environmentally-friendly insulating gas storage tank and the buffer gas storage tank.
In some embodiments, the device for purifying and supplying the insulating medium in the gas chamber of the environment-friendly insulating gas switch cabinet further comprises a vacuum pump, and an inlet of the vacuum pump is communicated with the purification cavity and the gas supply cavity.
Compared with the prior art, the technical scheme provided by the invention has the beneficial effects that: when the environment-friendly insulation medium air chamber air compressor is communicated, through the compressor with the environment-friendly insulation medium unpurified in with a certain pressure into the purification tank, 2 hours of standing, wait to purify the absorbent in the tank and adsorb the decomposition product and the moisture in the environment-friendly insulation medium of environmental protection in the tank, open first relief pressure valve again, because the atmospheric pressure in the purification tank is greater than the atmospheric pressure in the switch cabinet air chamber, the insulation medium that purifies in the purification tank can fill in the switch cabinet air chamber, then fill in the environment-friendly insulation gas through tonifying qi mechanism to the switch cabinet air chamber, make the content of the environment-friendly insulation gas in the switch cabinet air chamber reach the required value can, thereby can handle the decomposition product of the environment-friendly insulation medium in the switch cabinet air chamber through this device, and can not cause the waste of environment-friendly insulation medium a large amount.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an insulation medium purifying and air supplementing device in an air chamber of an environment-friendly insulated gas switchgear provided by the present invention;
FIG. 2 is a schematic structural view of the purge mechanism and the detection mechanism in FIG. 1;
FIG. 3 is a schematic view of the air supply mechanism in FIG. 1;
in the figure: 1-a purification mechanism, 11-a purification tank, 12-a compressor, 13-a first pressure reducing valve, 14-a gas purifying valve, 15-a second pressure detection piece, 2-a gas supplementing mechanism, 21-a gas supplementing tank, 22-a gas distribution piece, 221-a gas distribution instrument, 222-an environment-friendly insulating gas storage tank, 223-a buffer gas storage tank, 23-a second pressure reducing valve, 24-a third pressure detection piece, 3-a detection mechanism, 31-a connecting pipeline, 32-a gas main valve, 33-a first pressure detection piece and 4-a vacuum pump.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, the present invention provides an apparatus for purifying and supplying insulation medium in an air chamber of an environmental protection insulation gas switch cabinet, comprising a purifying mechanism 1 and an air supplying mechanism 2.
Purification mechanism 1 includes purification tank 11, compressor 12 and first relief pressure valve 13, an inclosed purification chamber has in the purification tank 11, it is used for packing into the adsorbent to purify the intracavity, purification tank 11 go up seted up with purify the net gas import and the net gas export of chamber intercommunication, the import of compressor 12 be used for with cubical switchboard air chamber interface intercommunication, the export of compressor 12 with net gas import intercommunication, the one end of first relief pressure valve 13 with net gas export intercommunication, the other end of first relief pressure valve 13 be used for with cubical switchboard air chamber interface intercommunication.
The air supply mechanism 2 is used for filling environment-friendly insulating gas into the switch cabinet air chamber.
When the environment-friendly insulation medium purifier is used, an inlet of the compressor 12 is communicated with an air chamber interface of a switch cabinet, unpurified environment-friendly insulation medium in the air chamber of the switch cabinet is completely filled into the purification tank 11 at a certain pressure through the compressor 12, standing is carried out for 2 hours, the decomposition products and moisture in the unpurified environment-friendly insulation medium are adsorbed by an adsorbent in the purification tank 11, then the first pressure reducing valve 13 is opened, the content of the environment-friendly insulation gas in the air chamber of the switch cabinet reaches a required value because the air pressure in the purification tank 11 is greater than the air pressure in the air chamber of the switch cabinet, the purified insulation medium in the purification tank 11 can be filled into the air chamber of the switch cabinet, and then the environment-friendly insulation gas is filled into the air chamber of the switch cabinet through the gas supplementing mechanism 2, so that the decomposition products of the environment-friendly insulation medium in the air chamber of the switch cabinet can be treated through the environment-friendly insulation medium purifier, and a large amount of the environment-friendly insulation medium cannot be wasted.
In order to facilitate monitoring of the air pressure in the air chamber of the switch cabinet, please refer to fig. 1 and 2, in a preferred embodiment, the device for purifying and supplying the insulating medium in the air chamber of the environment-friendly insulating gas switch cabinet further includes a detection mechanism 3, the detection mechanism 3 includes a connection pipeline 31, a main air valve 32 and a first pressure detection piece 33, one end of the connection pipeline 31 is communicated with the interface of the air chamber of the switch cabinet, the other end of the connection pipeline 31 is communicated with the inlet of the compressor 12 and the air supply mechanism 2, and the main air valve 32 and the first pressure detection piece 33 are both disposed on the connection pipeline 31. When the gas supplementing device is used, the air pressure in the connecting pipeline 31 is equal to the air pressure in the switch cabinet air chamber, so that in the gas supplementing stage, the quantity of the insulating medium needing to be supplemented in the switch cabinet air chamber can be judged through the indication number of the first pressure detection piece 33 (when the indication number of the first pressure detection piece 33 reaches a preset value, the content of the environment-friendly insulating gas in the switch cabinet air chamber reaches a required value).
In order to facilitate the control of the connection or disconnection of the inlet of the compressor 12 to the other end of the connection pipe, referring to fig. 1 and 2, in a preferred embodiment, the purification mechanism 1 further includes a purge valve 14, one end of the purge valve 14 is connected to the other end of the connection pipe 31, and the other end of the purge valve 14 is connected to the inlet of the compressor 12.
In order to facilitate the detection of the air pressure in the purification tank 11, please refer to fig. 1 and 2, in a preferred embodiment, the purification mechanism 1 further includes a second pressure detection element 15, and the second pressure detection element 15 is communicated with the purification chamber and is configured to detect the pressure in the purification chamber, in this embodiment, since the purification tank 11 is designed to bear the air pressure of 0.6Mpa, the second pressure detection element 15 is required to detect the air pressure in the purification tank 11, so as to prevent the air pressure from exceeding the designed pressure value.
To implement the function of the adsorbent, referring to fig. 1 and 2, in a preferred embodiment, the adsorbent comprises activated alumina and molecular sieve.
In order to realize the functions of the air supply mechanism 2, please refer to fig. 1 and fig. 3, in a preferred embodiment, the air supply mechanism 2 includes an air supply tank 21 and an air distribution member 22, the air supply tank 21 has an enclosed air supply cavity, the air supply tank 21 is provided with an air supply inlet and an air supply outlet which are communicated with the air supply cavity, the air supply outlet is communicated with the other end of the connecting pipeline 31, and the air distribution member 22 is communicated with the air supply inlet and is used for filling the air supply cavity with the environment-friendly insulating gas. When in use, the environment-friendly insulating gas is prepared by the gas distribution piece 22 and is guided into the gas supplementing tank 21, and then is guided into the connecting pipeline 31 and the switch cabinet gas chamber by the gas supplementing tank 21. The function of the make-up gas tank 21 is to perform cushioning.
In order to control the on/off of the air supply process, please refer to fig. 1 and fig. 3, in a preferred embodiment, the air supply mechanism 2 further includes a second pressure reducing valve 23, one end of the second pressure reducing valve 23 is communicated with the air supply outlet, and the other end of the second pressure reducing valve 23 is communicated with the other end of the connecting pipe 31.
In order to detect the pressure in the air supply tank 21, referring to fig. 1 and 3, in a preferred embodiment, the air supply mechanism 2 further includes a third pressure detecting element 24, and the third pressure detecting element 24 is communicated with the air supply chamber and is used for detecting the gas pressure in the air supply chamber.
To specifically realize the function of the gas distribution member 22, referring to fig. 1 and fig. 3, in a preferred embodiment, the gas distribution member 22 includes a gas distribution instrument 221, an environmentally-friendly insulating gas storage tank 222 and a buffer gas storage tank 223, the gas distribution instrument 221 has two gas distribution inlets and one gas distribution outlet, the gas distribution outlet is communicated with the gas supply cavity, and the two gas distribution inlets are respectively communicated with the environmentally-friendly insulating gas storage tank 222 and the buffer gas storage tank 223. Because the environment-friendly insulating medium has higher liquefaction temperature, a certain proportion of buffer gas (such as carbon dioxide, nitrogen and the like) must be added to reduce the liquefaction temperature of the environment-friendly insulating medium. The buffer gas storage tank 223 is used to store buffer gas, which is used to prepare a certain proportion of mixed gas with the environmentally friendly insulating medium to supplement the insulating medium lacking in the gas chamber.
In order to evacuate the pipeline and the gas tank before purification and before gas compensation, referring to fig. 1, in a preferred embodiment, the device for purifying and replenishing the insulating medium in the gas chamber of the environment-friendly insulating gas switch cabinet further comprises a vacuum pump 4, and an inlet of the vacuum pump 4 is communicated with the purification chamber and the gas compensation chamber.
For better understanding of the present invention, the following will explain the working process of the device for purifying and supplying air for insulating medium in the air chamber of the environmentally-friendly insulated gas switchgear in detail with reference to fig. 1 to 3: firstly, a vacuum pump 4 is used for vacuumizing a pipeline and a tank body contained in the device, then a connecting pipeline 31 is connected with a switch cabinet air chamber, and a first pressure detection piece 33 monitors the air pressure of the switch cabinet air chamber. And opening the gas main valve 32, the gas purification valve 14 and the compressor 12, completely filling the unpurified environment-friendly insulating medium in the gas chamber of the switch cabinet into the purification tank 11 at a certain pressure, standing for 2 hours, adsorbing decomposition products and moisture in the unpurified environment-friendly insulating medium by using an adsorbent in the purification tank 11, then opening the first pressure reducing valve 13, and filling the purified environment-friendly insulating medium into the gas chamber of the switch cabinet. At the moment, the pressure of the insulation medium in the air chamber of the switch cabinet is reduced due to the adsorption effect of the adsorbent and the partial gas in the pipeline. Therefore, the gas distribution instrument 221 is opened, the gas distribution proportion is adjusted according to the proportion requirement of the switch cabinet on the environment-friendly insulating medium, and the gas is filled into the gas supplementing tank 21. And then, the second pressure reducing valve 23 is opened, the gas in the gas supplementing tank 21 is filled into the gas chamber of the switch cabinet, and the purification and gas supplementing processes are completed after the first pressure detecting piece 33 displays the specified gas pressure standard of the switch cabinet.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (10)

1. An insulating medium purification and air supplement device in an air chamber of an environment-friendly insulating gas switch cabinet is characterized by comprising a purification mechanism and an air supplement mechanism;
the purification mechanism comprises a purification tank, a compressor and a first pressure reducing valve, wherein a closed purification cavity is formed in the purification tank, an adsorbent is filled in the purification cavity, a purified gas inlet and a purified gas outlet which are communicated with the purification cavity are formed in the purification tank, the inlet of the compressor is communicated with a switch cabinet air chamber interface, the outlet of the compressor is communicated with the purified gas inlet, one end of the first pressure reducing valve is communicated with the purified gas outlet, and the other end of the first pressure reducing valve is communicated with the switch cabinet air chamber interface;
the air supplement mechanism is used for filling environment-friendly insulating gas into the switch cabinet air chamber.
2. The apparatus for purifying and supplying insulation medium in an environment-friendly insulating gas switch cabinet air chamber according to claim 1, further comprising a detection mechanism, wherein the detection mechanism comprises a connecting pipeline, a main air valve and a first pressure detection piece, one end of the connecting pipeline is communicated with the switch cabinet air chamber interface, the other end of the connecting pipeline is communicated with the inlet of the compressor and the air supply mechanism, and the main air valve and the first pressure detection piece are disposed on the connecting pipeline.
3. The device for purifying and supplementing the insulating medium in the air chamber of the environment-friendly insulating gas switch cabinet according to claim 2, wherein the purifying mechanism further comprises a gas purifying valve, one end of the gas purifying valve is communicated with the other end of the connecting pipeline, and the other end of the gas purifying valve is communicated with an inlet of the compressor.
4. The apparatus for purifying and supplying insulation medium in gas chamber of environmental protection insulation gas switch cabinet as claimed in claim 1, wherein said purifying mechanism further comprises a second pressure detecting member, said second pressure detecting member is communicated with said purifying chamber and is used for detecting the pressure in said purifying chamber.
5. The apparatus for purifying and supplying insulation medium in air chamber of environmental protection insulation gas switch cabinet as claimed in claim 1, wherein said adsorbent comprises activated alumina and molecular sieve.
6. The apparatus for purifying and supplying insulation medium in air chamber of environmental protection insulation gas switch cabinet as claimed in claim 2, wherein said air supplying mechanism comprises an air supplying tank and an air distributing member, said air supplying tank has a closed air supplying cavity, said air supplying tank is provided with an air supplying inlet and an air supplying outlet which are communicated with said air supplying cavity, said air supplying outlet is communicated with the other end of said connecting pipe, said air distributing member is communicated with said air supplying inlet and is used for charging environmental protection insulation gas into said air supplying cavity.
7. The apparatus for purifying and supplying insulation medium in air chamber of environmental protection insulation gas switch cabinet as claimed in claim 6, wherein said air supplying mechanism further comprises a second pressure reducing valve, one end of said second pressure reducing valve is connected to said air supplying outlet, and the other end of said second pressure reducing valve is connected to the other end of said connecting pipeline.
8. The apparatus for purifying and supplying insulation medium in air chamber of environmental protection insulation gas switch cabinet as claimed in claim 6, wherein said air supplying mechanism further comprises a third pressure detecting member, said third pressure detecting member is communicated with said air supplying cavity and is used for detecting the gas pressure in said air supplying cavity.
9. The apparatus for cleaning and supplying insulation medium in air chamber of environmental protection insulation gas switch cabinet as claimed in claim 6, wherein said gas distribution member comprises a gas distribution instrument, an environmental protection insulation gas storage tank and a buffer gas storage tank, said gas distribution instrument has two gas distribution inlets and one gas distribution outlet, said gas distribution outlet is connected to said gas supply chamber, and said two gas distribution inlets are connected to said environmental protection insulation gas storage tank and said buffer gas storage tank, respectively.
10. The apparatus for purifying and supplying insulation medium in the gas chamber of the environment-friendly insulation gas switch cabinet as recited in claim 6, further comprising a vacuum pump, wherein an inlet of the vacuum pump is communicated with the purification chamber and the gas supply chamber.
CN202210801163.4A 2022-07-08 2022-07-08 Insulating medium purifies and air supplement unit in insulating gas switch cabinet air chamber of environmental protection Pending CN115055027A (en)

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CN202210801163.4A CN115055027A (en) 2022-07-08 2022-07-08 Insulating medium purifies and air supplement unit in insulating gas switch cabinet air chamber of environmental protection

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CN202210801163.4A CN115055027A (en) 2022-07-08 2022-07-08 Insulating medium purifies and air supplement unit in insulating gas switch cabinet air chamber of environmental protection

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10230124A (en) * 1997-02-21 1998-09-02 Toshiba Corp Sp6 gas recovery/refining device
US6004377A (en) * 1997-06-20 1999-12-21 Hitachi Engineering & Services Co., Ltd. System for collecting and refining SF6 gas and method therefor
US8522817B1 (en) * 2010-12-28 2013-09-03 Jefferson Science Associates, Llc Apparatus and method for fast recovery and charge of insulation gas
CN108140449A (en) * 2015-08-19 2018-06-08 Abb瑞士股份有限公司 From for generating, transmit, distribute and/or the dielectric method that recycles at least one substance using the electric device of electric energy
CN208634790U (en) * 2018-06-04 2019-03-22 国网安徽省电力有限公司电力科学研究院 Electrical equipment mix insulation gas prepares filling system
CN114007723A (en) * 2019-07-22 2022-02-01 Dilo配件和设备有限公司 Method for separating substitute gas mixtures used as insulating media

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10230124A (en) * 1997-02-21 1998-09-02 Toshiba Corp Sp6 gas recovery/refining device
US6004377A (en) * 1997-06-20 1999-12-21 Hitachi Engineering & Services Co., Ltd. System for collecting and refining SF6 gas and method therefor
US8522817B1 (en) * 2010-12-28 2013-09-03 Jefferson Science Associates, Llc Apparatus and method for fast recovery and charge of insulation gas
CN108140449A (en) * 2015-08-19 2018-06-08 Abb瑞士股份有限公司 From for generating, transmit, distribute and/or the dielectric method that recycles at least one substance using the electric device of electric energy
CN208634790U (en) * 2018-06-04 2019-03-22 国网安徽省电力有限公司电力科学研究院 Electrical equipment mix insulation gas prepares filling system
CN114007723A (en) * 2019-07-22 2022-02-01 Dilo配件和设备有限公司 Method for separating substitute gas mixtures used as insulating media

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Title
邓云坤 等: "新型环保气体绝缘与放电基础及应用", vol. 1, 机械工业出版社, pages: 12 - 13 *

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Effective date of registration: 20230804

Address after: 314500 No. 818 Huanyuan Road, Wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province

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Applicant after: TONGXIANG ELECTRIC POWER ENGINEERING Co.,Ltd.

Address before: 314500 No. 818 Huanyuan Road, Wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province

Applicant before: State Grid Zhejiang Electric Power Co., Ltd. Tongxiang power supply Co.

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