CN202650948U - SF6 circuit breaker gas automatic compensation device - Google Patents

SF6 circuit breaker gas automatic compensation device Download PDF

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Publication number
CN202650948U
CN202650948U CN 201220171725 CN201220171725U CN202650948U CN 202650948 U CN202650948 U CN 202650948U CN 201220171725 CN201220171725 CN 201220171725 CN 201220171725 U CN201220171725 U CN 201220171725U CN 202650948 U CN202650948 U CN 202650948U
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CN
China
Prior art keywords
gas
circuit breaker
electromagnetic valve
breaker gas
storehouse
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Expired - Fee Related
Application number
CN 201220171725
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Chinese (zh)
Inventor
麻飞燕
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
Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Original Assignee
Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
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
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Priority to CN 201220171725 priority Critical patent/CN202650948U/en
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Publication of CN202650948U publication Critical patent/CN202650948U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a SF6 circuit breaker gas automatic compensation device. The SF6 circuit breaker gas automatic compensation device comprises a SF6 gas tank, a main air passage, a plurality of branch air passages, a check valve, a plurality of control devices and a plurality of electromagnetic valves. One end of the main air passage is connected with the SF6 gas tank, the other end of the main air passage is connected with one end of each branch air passage, and the other end of each branch air passage is connected with a SF6 circuit breaker gas chamber. The check valve is arranged on the main air passage. Each branch air passage is provided with an electromagnetic valve. Each control device is connected with an electromagnetic valve. When the pressure of the SF6 gas in the circuit breaker gas chamber is less than a critical value, the electromagnetic valves are opened under the control of the control devices, and the SF6 gas in the SF6 gas tank flows into the circuit breaker gas chamber. When the pressure of the SF6 gas in the circuit breaker gas chamber reaches a rated value, the electromagnetic valves are closed under the control of a controller (105).

Description

A kind of SF6 circuit breaker gas autocompensation installation
Technical field
The utility model is about the circuit breaker technology, particularly about a kind of SF6 circuit breaker gas autocompensation installation.
Background technology
At present, what the circuit breaker of transformer station generally adopted is the SF6 circuit breaker, and the SF6 circuit breaker utilizes SF6 gas to make dielectric and arc-extinguishing medium, takes full advantage of SF6 gas arc extinction performance strong, and dielectric strength is high, the advantage of stable chemical nature.
Along with the SF6 circuit breaker increases at open and close times, under the impact of the composite factors such as natural environment, portion gas can be decomposed and small leakage, this has just caused, and the SF6 gas pressure constantly descends in the circuit breaker gas storehouse, when pressure less than the regulation critical value the time, will affect the normal drop-out current of circuit breaker and arc extinguishing ability, and then cause interruption of service, jeopardize electric power netting safe running.The coping style of taking at present is to monitor internal gas pressure by the gas gauge that is installed on the circuit breaker, when finding that the SF6 gas pressure is lower than critical value, must carry out interruption maintenance, tonifying Qi to circuit breaker, to keep normal, the safe operation of circuit breaker.This monitoring mode is more passive, and especially for nowadays increasing unattended operation transformer station, interruption of service very easily occurs the situation of may judge by accident, failing to judge, and the power failure tonifying Qi directly has influence on power supply reliability.
The utility model content
The utility model provides a kind of SF6 circuit breaker gas autocompensation installation, to realize the compensation of gas in the SF6 gas tank.
To achieve these goals, the utility model provides a kind of SF6 circuit breaker gas autocompensation installation, and this SF6 circuit breaker gas autocompensation installation comprises: SF6 gas tank 101, main airway 102, many minute branch airway 103, non-return valve 104, a plurality of control appliance 105 and a plurality of electromagnetic valve 106; Wherein,
One end of described main airway 102 connects described SF6 gas tank 101, and the other end connects an end of each described minute branch airway 103; The other end of each described minute branch airway 103 connects respectively a SF6 circuit breaker gas storehouse 107; Described non-return valve 104 is located on the described main airway 102; Each established respectively a described electromagnetic valve 106 in described minute on the branch airway 103;
Each described control appliance 105 connects a described electromagnetic valve 106, when the pressure of the SF6 gas in the described circuit breaker gas storehouse 107 is lower than critical value, the connected described electromagnetic valve 106 of described control appliance 105 controls is opened, the described circuit breaker gas of SF6 gas flow storehouse 107 in the described SF6 gas tank 101, when the pressure of the SF6 gas in the described circuit breaker gas storehouse 107 reached rated value, the connected described electromagnetic valve 106 of described controller 105 controls was closed.
Further, described control appliance 105 comprises: pressure gauge 108 connects described SF6 circuit breaker gas storehouse 107; Controller 109 is used for controlling the switching of described electromagnetic valve 106.
Further, described SF6 gas tank 101 is positioned in the underground cable ditch or is positioned over fixed position in the transformer station.
Further, the number of described minute branch airway 103 is 3, and the number of described electromagnetic valve 106 is 3.
Further, electromagnetic valve 106 is located at described SF6 circuit breaker gas storehouse 107 and the junction of dividing branch airway 103.
The beneficial effects of the utility model are, SF6 circuit breaker gas autocompensation installation of the present utility model can be realized the compensation of gas in the SF6 gas tank.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.In the accompanying drawings:
Fig. 1 is the structural representation of SF6 circuit breaker gas autocompensation installation of the present utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further details.At this, the utility model be used for is explained in illustrative examples of the present utility model and explanation thereof, but not as to restriction of the present utility model.
As shown in Figure 1, the utility model provides a kind of SF6 circuit breaker gas autocompensation installation, and this SF6 circuit breaker gas autocompensation installation comprises: SF6 gas tank 101, main airway 102, many minute branch airway 103, non-return valve 104, a plurality of control appliance 105 and a plurality of electromagnetic valve 106.
One end of described main airway 102 connects described SF6 gas tank 101, and the other end connects an end of each described minute branch airway 103; The other end of each described minute branch airway 103 connects respectively a SF6 circuit breaker gas storehouse 107; Described non-return valve 104 is located on the described main airway 102; Each established respectively a described electromagnetic valve 106 in described minute on the branch airway 103.
Each control appliance 105 connects an electromagnetic valve 106, when the pressure of the SF6 gas in the described circuit breaker gas storehouse 107 is lower than critical value, the connected electromagnetic valve 106 of described control appliance 105 controls is opened, the described circuit breaker gas of SF6 gas flow storehouse 107 in the described SF6 gas tank 101, when the pressure of the SF6 gas in the described circuit breaker gas storehouse 107 reached critical value, described controller 105 controls were closed with its connected electromagnetic valve door 106.
Described control appliance 105 comprises: pressure gauge 108 and controller 109, and pressure gauge 108 connects described SF6 circuit breaker gas storehouse 107, and controller 109 is used for controlling the switching of described electromagnetic valve 106.When the pressure of the SF6 gas in pressure gauge 108 detects described circuit breaker gas storehouse 107 is lower than critical value, the connected electromagnetic valve 106 of controller 109 controls is opened, because the gas pressure in the SF6 gas tank 101 is greater than the gas pressure in SF6 circuit breaker gas storehouse 107, SF6 gas in the SF6 gas tank 101 just can be filled with in the SF6 circuit breaker gas storehouse 107, when the gas pressure in the SF6 circuit breaker gas storehouse 107 reaches rated value, controller 109 triggers electromagnetic valve 106 again, make it to close, finished the compensation process to SF6 gas in the SF6 circuit breaker gas storehouse 107.Above-mentioned critical value and rated value can be set according to the concrete condition of transformer station.
The effect of non-return valve 104 is that gas has guaranteed the one-way flow of SF6 gas to SF6 gas tank 101 counter filling in the circuit breaker gas storehouse in particular cases among Fig. 1.Main airway 102, many minutes branch airway 103 can adopt on the market that sealing is strong, corrosion resistant, high voltage bearing material are made.
Alternatively, described SF6 gas tank 101 can be positioned in the underground cable ditch or be positioned over fixed position in the transformer station.
In Fig. 1, the number of described minute branch airway 103 is 3, and the number of corresponding electromagnetic valve 106 is 3, and the number of the electromagnetic valve of the number of minute branch airway 103 and correspondence is example of the present utility model only, is not for limiting the utility model.
One preferably among the embodiment, electromagnetic valve 106 is located at the junction of described SF6 circuit breaker gas storehouse 107 and minute branch airway 103, and the utility model is not limited according to this.
The beneficial effects of the utility model are, SF6 circuit breaker gas autocompensation installation of the present utility model can be realized the compensation of gas in the SF6 gas tank.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; and be not used in and limit protection range of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims (5)

1. SF6 circuit breaker gas autocompensation installation, it is characterized in that, described SF6 circuit breaker gas autocompensation installation comprises: SF6 gas tank (101), main airway (102), many minute branch airway (103), non-return valve (104), a plurality of control appliance (105) and a plurality of electromagnetic valve (106); Wherein,
One end of described main airway (102) connects described SF6 gas tank (101), the other end connect each described minute branch airway (103) an end; Each described minute branch airway (103) the other end connect respectively a SF6 circuit breaker gas storehouse (107); Described non-return valve (104) is located on the described main airway (102); Each established respectively a described electromagnetic valve (106) on branch airway (103) in described minute;
Each described control appliance (105) connects a described electromagnetic valve (106); When the pressure of the SF6 gas in the described circuit breaker gas storehouse (107) is lower than critical value, described control appliance (105) the connected described electromagnetic valve of control (106) is opened, the described circuit breaker gas of the SF6 gas flow storehouse (107) in the described SF6 gas tank (101); When the pressure of the SF6 gas in the described circuit breaker gas storehouse (107) reached rated value, described controller (105) the connected described electromagnetic valve of control (106) was closed.
2. SF6 circuit breaker gas autocompensation installation according to claim 1 is characterized in that, described control appliance (105) comprising:
Pressure gauge (108) connects described SF6 circuit breaker gas storehouse (107);
Controller (109) is used for controlling the switching of described electromagnetic valve (106).
3. SF6 circuit breaker gas autocompensation installation according to claim 1 is characterized in that, described SF6 gas tank (101) is positioned in the underground cable ditch or is positioned over fixed position in the transformer station.
4. SF6 circuit breaker gas autocompensation installation according to claim 1 is characterized in that, described minute branch airway (103) number be 3, the number of described electromagnetic valve (106) is 3.
5. SF6 circuit breaker gas autocompensation installation according to claim 1 is characterized in that, electromagnetic valve (106) is located at described SF6 circuit breaker gas storehouse (107) and the junction of dividing branch airway (103).
CN 201220171725 2012-04-20 2012-04-20 SF6 circuit breaker gas automatic compensation device Expired - Fee Related CN202650948U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220171725 CN202650948U (en) 2012-04-20 2012-04-20 SF6 circuit breaker gas automatic compensation device

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Application Number Priority Date Filing Date Title
CN 201220171725 CN202650948U (en) 2012-04-20 2012-04-20 SF6 circuit breaker gas automatic compensation device

Publications (1)

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CN202650948U true CN202650948U (en) 2013-01-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103779132A (en) * 2013-01-22 2014-05-07 上海乐研电气科技有限公司 Sulfur hexafluoride high-voltage circuit breaker used in cold regions
CN105576545A (en) * 2016-02-22 2016-05-11 江苏亿能电气有限公司 Online intelligent voltage stabilizing system of SF6 ring main unit
CN108685607A (en) * 2018-06-15 2018-10-23 首都医科大学附属北京世纪坛医院 Oncological Surgery Special constant temperature pneumoperitoneum system
CN110107801A (en) * 2019-04-30 2019-08-09 国网江苏省电力有限公司常州供电分公司 The round-the-clock making-up air device of GIS device suitable for the more leak sources of multi-compartment
CN110107801B (en) * 2019-04-30 2024-06-28 国网江苏省电力有限公司常州供电分公司 All-day candidate gas device suitable for GIS equipment with multiple intervals and multiple leakage points

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103779132A (en) * 2013-01-22 2014-05-07 上海乐研电气科技有限公司 Sulfur hexafluoride high-voltage circuit breaker used in cold regions
CN103779132B (en) * 2013-01-22 2019-09-06 上海乐研电气有限公司 A kind of SF 6 high-voltage circuit breaker for cold district
CN105576545A (en) * 2016-02-22 2016-05-11 江苏亿能电气有限公司 Online intelligent voltage stabilizing system of SF6 ring main unit
CN108685607A (en) * 2018-06-15 2018-10-23 首都医科大学附属北京世纪坛医院 Oncological Surgery Special constant temperature pneumoperitoneum system
CN108685607B (en) * 2018-06-15 2024-02-02 首都医科大学附属北京世纪坛医院 Special constant temperature pneumoperitoneum system of tumour surgery
CN110107801A (en) * 2019-04-30 2019-08-09 国网江苏省电力有限公司常州供电分公司 The round-the-clock making-up air device of GIS device suitable for the more leak sources of multi-compartment
CN110107801B (en) * 2019-04-30 2024-06-28 国网江苏省电力有限公司常州供电分公司 All-day candidate gas device suitable for GIS equipment with multiple intervals and multiple leakage points

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Effective date: 20121227

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20121227

Address after: 037008 No. 61 Yingbin West Road, Shanxi, Datong

Patentee after: Datong Power Supply Branch, Shanxi Electric Power Co., Ltd.

Patentee after: State Grid Corporation of China

Address before: 037008 No. 61 Yingbin West Road, Shanxi, Datong

Patentee before: Datong Power Supply Branch, Shanxi Electric Power Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130102

Termination date: 20190420

CF01 Termination of patent right due to non-payment of annual fee