CN114151731A - High-capacity sulfur hexafluoride rapid recovery equipment - Google Patents
High-capacity sulfur hexafluoride rapid recovery equipment Download PDFInfo
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- CN114151731A CN114151731A CN202210028390.8A CN202210028390A CN114151731A CN 114151731 A CN114151731 A CN 114151731A CN 202210028390 A CN202210028390 A CN 202210028390A CN 114151731 A CN114151731 A CN 114151731A
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- pipeline
- sulfur hexafluoride
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- switch valve
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 54
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 54
- 238000011084 recovery Methods 0.000 title claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 239000002808 molecular sieve Substances 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 20
- 238000005086 pumping Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/10—Arrangements for supervising or controlling working operations for taking out the product in the line
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides high-capacity rapid sulfur hexafluoride recovery equipment which comprises a recovery interface unit, a first filtering unit, a first vacuumizing unit, a compressing unit, a second vacuumizing unit and a refilling port unit, wherein the recovery interface unit, the first filtering unit, the first vacuumizing unit, the compressing unit, the second vacuumizing unit and the refilling port unit are sequentially communicated and arranged along the recovery direction of sulfur hexafluoride tail gas. The high-capacity rapid sulfur hexafluoride recovery equipment provided by the invention solves the problem of insufficient recovery of sulfur hexafluoride tail gas in the prior art.
Description
Technical Field
The invention belongs to the technical field of sulfur hexafluoride recovery, and particularly relates to high-capacity rapid sulfur hexafluoride recovery equipment.
Background
In electric power systems, sulfur hexafluoride (SF)6) The sulfur hexafluoride gas is a colorless, tasteless and incombustible gas which is widely used in electrical equipment. Sulfur hexafluoride gas is decomposed into sulfur and fluorine monatomic states under the action of an electric arc, and when a small amount of water vapor and oxygen are contained in the electrical equipment, SOF is generated by reaction2、SOF4And toxic gases such as HF, which are mostly acidic substances, and water and oxygen together corrode parts of electrical equipment.
The decomposition products of the sulfur hexafluoride gas not only corrode electrical equipment, but also can injure the nose, mouth and respiratory system of people, so that the sulfur hexafluoride gas recovery method has important significance for sulfur hexafluoride gas recovery. The existing sulfur hexafluoride gas recovery device has the problems of insufficient recovery and insufficient intellectualization.
Disclosure of Invention
The embodiment of the invention provides high-capacity equipment for quickly recovering sulfur hexafluoride, and aims to solve the problem that sulfur hexafluoride gas is not sufficiently recovered in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a sulfur hexafluoride equipment is retrieved fast to large capacity, includes: the recovery interface unit, the first filtering unit, the first vacuumizing unit, the compressing unit, the second vacuumizing unit and the recharging port unit are sequentially communicated along the recovery direction of the sulfur hexafluoride tail gas;
the first vacuumizing unit comprises a first branch and a second branch which are arranged in parallel, and the first branch comprises a first pipeline, a first switch valve and a first vacuum pump, wherein the first switch valve is installed on the first pipeline to control the on-off of the first pipeline; the second branch comprises a second pipeline and a second switch valve which is arranged on the second pipeline and used for controlling the second pipeline to be switched on and off;
the compression unit comprises a third branch and a fourth branch which are arranged in parallel, and the third branch comprises a third pipeline, a pressure regulating valve arranged on the third pipeline and a compressor arranged on the third pipeline; the fourth branch comprises a fourth pipeline and a fourth switching valve which is arranged on the fourth pipeline to control the on-off of the fourth pipeline;
the second vacuumizing unit comprises a fifth branch and a sixth branch which are connected in parallel, the fifth branch comprises a fifth pipeline, a fifth switch valve which is installed on the fifth pipeline to control the on-off of the fifth pipeline, a second vacuum pump which is installed on the fifth pipeline, and a second barometer which is installed on the fifth pipeline to monitor the air pressure of the fifth pipeline; the sixth branch comprises a sixth pipeline and a sixth switch valve which is arranged on the sixth pipeline and used for controlling the second pipeline to be switched on and off.
As a possible implementation manner, the first filtering unit includes a primary filter and a secondary filter, the primary filter is activated alumina, and the secondary filter is a molecular sieve.
As a possible implementation, the sixth branch further includes a tertiary filter mounted on the sixth pipeline.
As a possible implementation, the tertiary filter is a molecular sieve.
As a possible implementation manner, the high-capacity rapid sulfur hexafluoride recovery device further comprises a controller, the recovery interface unit further comprises a recovery port, a first pressure sensor and an electromagnetic switch valve, and the first pressure sensor and the electromagnetic switch valve are respectively connected with the controller to detect the pressure of the recovery port and control the on-off of the electromagnetic switch valve.
As a possible implementation manner, the first filtering unit further includes a first barometer, and the first barometer is used for detecting the pressure of the gas passing through the first filtering unit.
As a possible implementation, the fifth branch further includes a second pressure sensor disposed on the fifth pipeline.
Compared with the prior art, the high-capacity rapid sulfur hexafluoride recovery device provided by the invention is provided with the first vacuum pump and the second vacuum pump, the second vacuum pump is started to vacuumize the whole device, the second vacuum pump is closed, and the first vacuum pump is started to recover sulfur hexafluoride in the electrical device. The problem of prior art gas recovery insufficient when retrieving sulfur hexafluoride is solved.
Drawings
Fig. 1 is a flow chart of a high-capacity rapid sulfur hexafluoride recovery apparatus provided by an embodiment of the present invention.
In the figure: 100. a recovery interface unit; 110. a recovery port; 120. a first pressure sensor; 130. an electromagnetic on-off valve; 200. a first filter unit; 210. a first stage filter; 220. a secondary filter; 300. a first vacuum pumping unit; 310. a first vacuum pump; 320. a first on-off valve; 330. a second on-off valve; 340. a first barometer; 400. a compression unit; 410. a pressure regulating valve; 420. a compressor; 430. a fourth switching valve; 500. a second vacuum pumping unit; 510. a second vacuum pump; 520. a second barometer; 530. a fifth on-off valve; 540. a third filter; 550. a sixth switching valve; 560. a second pressure sensor; 600. a refill port unit.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, an embodiment of the high-capacity rapid sulfur hexafluoride recovery apparatus provided by the present invention will now be described. The high-capacity sulfur hexafluoride rapid recovery device is applied to recovery of sulfur hexafluoride tail gas in sulfur hexafluoride electrical equipment. The high-capacity rapid sulfur hexafluoride recovery device provided by the embodiment of the invention comprises a recovery interface unit 100, a first filtering unit 200, a first vacuumizing unit 300, a compressing unit 400, a second vacuumizing unit 500 and a recharging port unit 600 which are sequentially communicated and arranged along the recovery direction of sulfur hexafluoride tail gas.
The first vacuum pumping unit 300 comprises a first branch and a second branch which are connected in parallel, wherein the first branch comprises a first pipeline, a first switch valve 320 which is installed on the first pipeline to control the on-off of the first pipeline, and a first vacuum pump 310 which is installed on the first pipeline. The second branch circuit comprises a second pipeline and a second switch valve 330 mounted on the second pipeline to control the second pipeline to be switched on and switched off.
The compression unit 400 comprises a third branch and a fourth branch which are arranged in parallel, wherein the third branch comprises a third pipeline, a pressure regulating valve 410 arranged on the third pipeline and a compressor 420 arranged on the third pipeline; the fourth branch comprises a fourth pipeline and a fourth switching valve 430 which is arranged on the fourth pipeline and used for controlling the on-off of the fourth pipeline.
The second vacuum pumping unit 500 comprises a fifth branch and a sixth branch which are connected in parallel, wherein the fifth branch comprises a fifth pipeline, a fifth switch valve 530 which is installed on the fifth pipeline to control the on-off of the fifth pipeline, a second vacuum pump 510 which is installed on the fifth pipeline, and a second barometer 520 which is installed on the fifth pipeline to monitor the air pressure of the fifth pipeline. The sixth branch comprises a sixth pipeline and a sixth switch valve 550 which is installed on the sixth pipeline to control the on-off of the second pipeline.
The first, second, fourth, fifth and sixth switching valves 320, 330, 430, 530 and 550 may be manually controlled mechanical valves or automatically controlled solenoid valves, and of course, if the solenoid valves are provided, corresponding controllers are required.
Before the sulfur hexafluoride tail gas is recovered by using the high-capacity rapid sulfur hexafluoride recovery device provided by the embodiment of the invention, the high-capacity rapid sulfur hexafluoride recovery device provided by the embodiment of the invention needs to be vacuumized, the first switch valve 320 and the sixth switch valve 550 need to be closed, the second switch valve 330, the fourth switch valve 430 and the fifth switch valve 530 need to be opened, the second vacuum pump 510 is started for vacuumization, the vacuumization is stopped when the value displayed by the second barometer 520 is negative pressure, and the second switch valve 330, the fourth switch valve 430 and the fifth switch valve 530 need to be closed.
The recovery interface unit 100 is connected with the electrical equipment filled with sulfur hexafluoride, the recovery interface unit 100 is started, the second switch valve 330 and the sixth switch valve 550 are opened at the same time, the compressor 420 is started, when the pressure in the electrical equipment is high, the negative pressure in the high-capacity rapid recovery sulfur hexafluoride equipment and the positive pressure in the electrical equipment provided by the embodiment of the invention are relied on, the sulfur hexafluoride enters the pipeline and is filtered by the first filtering unit 200, the pressure of the sulfur hexafluoride is adjusted under the action of the pressure regulating valve 410, the pressure of the gas entering the compressor 420 is kept constant, the gas is compressed under the action of the compressor 420, passes through the sixth pipeline again, and is finally filled into a steel bottle or other containers through the recharging port unit 600.
After a period of time, the pressure in the electrical equipment is reduced, at this time, the second switch valve 330 is closed, the first switch valve 320 is opened, the first vacuum pump 310 is started, the sulfur hexafluoride in the electrical equipment is extracted under the action of the first vacuum pump 310, and then enters a steel bottle or other containers containing the sulfur hexafluoride through the pressure regulating valve 410, the compressor 420 and the sixth pipeline through the recharging port unit 600.
Compared with the prior art, the high-capacity rapid sulfur hexafluoride recovery device provided by the invention is provided with the first vacuum pump and the second vacuum pump, the second vacuum pump is started to vacuumize the whole device, the second vacuum pump is closed, and the first vacuum pump is started to recover sulfur hexafluoride in the electrical device. The problem of prior art gas recovery insufficient when retrieving sulfur hexafluoride is solved.
In some embodiments, referring to fig. 1, the first filtering unit 200 includes a first filter 210 and a second filter 220, the first filter 210 is activated alumina, and the second filter 220 is molecular sieve. The molecular sieve has better adsorption capacity to sulfur hexafluoride decomposition gas than activated alumina, and has good adsorption capacity when the concentration of sulfur hexafluoride decomposition gas or water is very low. Therefore, the primary filter 210 is selected to be activated alumina for primary filtration, and the secondary filter 220 is selected to be molecular sieve for secondary filtration, so as to increase the filtration performance.
In some embodiments, referring to fig. 1, the sixth branch further comprises a tertiary filter 540 mounted to the sixth pipe.
In some embodiments, referring to fig. 1, the tertiary filter 540 is a molecular sieve.
In some embodiments, referring to fig. 1, the high-capacity rapid sulfur hexafluoride recovery apparatus provided in the embodiments of the present invention further includes a controller, the recovery interface unit 100 further includes a recovery port 110, a first pressure sensor 120, and an electromagnetic switch valve 130, and the first pressure sensor 120 and the electromagnetic switch valve 130 are respectively connected to the controller, and are used for detecting a pressure of the recovery port 110 and controlling on/off of the electromagnetic switch valve 130.
In some embodiments, referring to fig. 1, the recycling interface unit 100 employs a plurality of recycling ports 110 connected in parallel, so as to increase the capacity of the recycling channel.
In some embodiments, referring to fig. 1, the first filtering unit 200 further includes a first pressure gauge 340, and the first pressure gauge 340 detects the pressure of the gas passing through the first filtering unit 200.
In some embodiments, referring to fig. 1, the fifth branch further comprises a second pressure sensor 560 disposed on the fifth pipeline, and the second pressure sensor 560 is connected to the controller. The second pressure sensor 560 transmits a signal to the controller for data processing, and controls the opening and closing of the fifth switching valve 530.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. High capacity retrieves sulfur hexafluoride equipment fast, its characterized in that includes: the recovery interface unit, the first filtering unit, the first vacuumizing unit, the compressing unit, the second vacuumizing unit and the recharging port unit are sequentially communicated along the recovery direction of the sulfur hexafluoride tail gas;
the first vacuumizing unit comprises a first branch and a second branch which are arranged in parallel, and the first branch comprises a first pipeline, a first switch valve and a first vacuum pump, wherein the first switch valve is installed on the first pipeline to control the on-off of the first pipeline; the second branch comprises a second pipeline and a second switch valve which is arranged on the second pipeline and used for controlling the second pipeline to be switched on and off;
the compression unit comprises a third branch and a fourth branch which are arranged in parallel, and the third branch comprises a third pipeline, a pressure regulating valve arranged on the third pipeline and a compressor arranged on the third pipeline; the fourth branch comprises a fourth pipeline and a fourth switching valve which is arranged on the fourth pipeline to control the on-off of the fourth pipeline;
the second vacuumizing unit comprises a fifth branch and a sixth branch which are connected in parallel, the fifth branch comprises a fifth pipeline, a fifth switch valve which is installed on the fifth pipeline to control the on-off of the fifth pipeline, a second vacuum pump which is installed on the fifth pipeline, and a second barometer which is installed on the fifth pipeline to monitor the air pressure of the fifth pipeline; the sixth branch comprises a sixth pipeline and a sixth switch valve which is arranged on the sixth pipeline and used for controlling the second pipeline to be switched on and off.
2. The high capacity rapid recovery sulfur hexafluoride recited in claim 1 wherein said first filter unit includes a primary filter and a secondary filter, said primary filter being activated alumina and said secondary filter being molecular sieve.
3. The high capacity rapid recovery sulfur hexafluoride plant of claim 1 wherein said sixth branch further includes a tertiary filter mounted to said sixth conduit.
4. A high capacity rapid recovery sulfur hexafluoride plant as claimed in claim 3 wherein said tertiary filter is a molecular sieve.
5. The high-capacity rapid sulfur hexafluoride recycling device according to claim 1, wherein the high-capacity rapid sulfur hexafluoride recycling device further comprises a controller, the recycling interface unit further comprises a recycling port, a first pressure sensor and an electromagnetic switch valve, and the first pressure sensor and the electromagnetic switch valve are respectively connected with the controller so as to detect the pressure value of the recycling port and control the on-off of the electromagnetic switch valve.
6. The high capacity rapid recovery sulfur hexafluoride device recited in claim 1, wherein said first filter unit further includes a first pressure gauge, said first pressure gauge being configured to sense a pressure of gas passing through said first filter unit.
7. The high capacity rapid recovery sulfur hexafluoride device recited in claim 1, wherein said fifth branch further includes a second pressure sensor disposed in said fifth conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210028390.8A CN114151731A (en) | 2022-01-11 | 2022-01-11 | High-capacity sulfur hexafluoride rapid recovery equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210028390.8A CN114151731A (en) | 2022-01-11 | 2022-01-11 | High-capacity sulfur hexafluoride rapid recovery equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114151731A true CN114151731A (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210028390.8A Pending CN114151731A (en) | 2022-01-11 | 2022-01-11 | High-capacity sulfur hexafluoride rapid recovery equipment |
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| CN (1) | CN114151731A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050924U (en) * | 1989-04-15 | 1990-01-10 | 陆剑飞 | Gas charging-discharging and recovering device |
| CN2938373Y (en) * | 2006-08-22 | 2007-08-22 | 上海雷格仪器有限公司 | SF6 insulation and recoverying device |
| CN201135845Y (en) * | 2007-08-08 | 2008-10-22 | 安徽省电力科学研究院 | Sulfur hexafluoride recovering and recharging device |
| CN201162939Y (en) * | 2008-01-30 | 2008-12-10 | 金万林 | Full-automatic sulfur hexafluoride multifunctional inflation reclaimer |
| CN201647993U (en) * | 2010-03-11 | 2010-11-24 | 辽宁省电力有限公司鞍山超高压分公司 | Sulfur hexafluoride gas recovery and purification device |
| CN103560041A (en) * | 2013-11-15 | 2014-02-05 | 国家电网公司 | High-power sulfur hexafluoride recovery recharging device |
| CN206875119U (en) * | 2017-03-28 | 2018-01-12 | 安徽科讯电力技术有限公司 | A kind of sulfur hexafluoride gas no pollution fast vacuum recharging device |
| CN107588325A (en) * | 2017-09-08 | 2018-01-16 | 河南平高电气股份有限公司 | A kind of sulfur hexafluoride gas reclaims aerating device |
| CN211952235U (en) * | 2019-12-06 | 2020-11-17 | 河南省日立信股份有限公司 | Modular combined sulfur hexafluoride recovery device |
-
2022
- 2022-01-11 CN CN202210028390.8A patent/CN114151731A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050924U (en) * | 1989-04-15 | 1990-01-10 | 陆剑飞 | Gas charging-discharging and recovering device |
| CN2938373Y (en) * | 2006-08-22 | 2007-08-22 | 上海雷格仪器有限公司 | SF6 insulation and recoverying device |
| CN201135845Y (en) * | 2007-08-08 | 2008-10-22 | 安徽省电力科学研究院 | Sulfur hexafluoride recovering and recharging device |
| CN201162939Y (en) * | 2008-01-30 | 2008-12-10 | 金万林 | Full-automatic sulfur hexafluoride multifunctional inflation reclaimer |
| CN201647993U (en) * | 2010-03-11 | 2010-11-24 | 辽宁省电力有限公司鞍山超高压分公司 | Sulfur hexafluoride gas recovery and purification device |
| CN103560041A (en) * | 2013-11-15 | 2014-02-05 | 国家电网公司 | High-power sulfur hexafluoride recovery recharging device |
| CN206875119U (en) * | 2017-03-28 | 2018-01-12 | 安徽科讯电力技术有限公司 | A kind of sulfur hexafluoride gas no pollution fast vacuum recharging device |
| CN107588325A (en) * | 2017-09-08 | 2018-01-16 | 河南平高电气股份有限公司 | A kind of sulfur hexafluoride gas reclaims aerating device |
| CN211952235U (en) * | 2019-12-06 | 2020-11-17 | 河南省日立信股份有限公司 | Modular combined sulfur hexafluoride recovery device |
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