CN204141227U - A kind of bushing shell for transformer SF 6gas make-up device - Google Patents
A kind of bushing shell for transformer SF 6gas make-up device Download PDFInfo
- Publication number
- CN204141227U CN204141227U CN201420486454.XU CN201420486454U CN204141227U CN 204141227 U CN204141227 U CN 204141227U CN 201420486454 U CN201420486454 U CN 201420486454U CN 204141227 U CN204141227 U CN 204141227U
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- CN
- China
- Prior art keywords
- sleeve pipe
- gas
- transformer
- valve
- pressure difference
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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.)
- Expired - Fee Related
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a kind of bushing shell for transformer SF
6gas make-up device, comprises one with sleeve pipe, a SF of gas charging valve
6container and be connected to SF by pipeline
6pressure difference valve between container and sleeve pipe, described pressure difference valve is connected with the gas charging valve of sleeve pipe by pipeline.The utility model structure is simply easy to use, can automatically supplement the SF revealed in sleeve pipe in time
6gas, saves manpower, avoids SF
6the excessive sleeve pipe that causes of quantity of gas leakage is scrapped, and causes tremendous economic to lose; Avoid simultaneously and cause serious consequence because sleeve pipe loses insulating effect.
Description
Technical field
The utility model relates to a kind of gas make-up device, is specifically related to a kind of SF being applied to bushing shell for transformer
6gas make-up device.
Background technique
Bushing shell for transformer is the primary insulation device of transformer outside, for the outside guiding to fuel tank, plays lead-in wire insulation over the ground and the effect of anchor leg.In current operation, transformer adopts SF
6gas insulated bushing, interior oil gas insulation system need ensure SF
6gas pressure reaches certain numerical value, and frequently occurs sleeve pipe gas leak phenomenon after the operation for many years of such sleeve pipe, and in sleeve pipe, Leakage Gas is to needing manually to its inflation time a certain amount of, and complex operation, wastes time and energy, if discovery is not in time, and SF
6quantity of gas leakage is excessive, sleeve pipe can be caused to scrap, cause tremendous economic to lose, and sleeve pipe loses insulating effect simultaneously, causes serious consequence.
Summary of the invention
For the problems referred to above, the utility model provides a kind of SF that automatically can carry out gas make-up to bushing shell for transformer
6gas make-up device.
For solving the problem, the technological scheme that the utility model is taked is: a kind of bushing shell for transformer SF
6gas make-up device, comprises one with sleeve pipe, a SF of gas charging valve
6container and be connected to SF by pipeline
6pressure difference valve between container and sleeve pipe, described pressure difference valve is connected with the gas charging valve of sleeve pipe by pipeline.First according to SF in sleeve pipe
6pressure when gas reaches technological requirement presets pressure reduction, the valve closing when front and back actual pressure differential is less than default pressure reduction by the pressure setting device setting of pressure difference valve itself; When front and back pressure reduction is greater than default pressure reduction, valve open is voluntarily to make-up gas in sleeve pipe, closes until reach default pressure differential valve.
Described SF
6container is fixed on bushing lifting seat.Be fixed on bushing lifting seat and be convenient to the fixing of transformer base plate, otherwise also need scene to provide installation foundation.
For the ease of regulable control pressure reduction, before and after described pressure difference valve, pipeline is separately installed with pressure gauge.
Described pressure difference valve is self-powering type pressure difference valve.Self-powering type pressure difference valve, without the need to by the external energy, relies on and is adjusted the change of medium pressure itself to automatically adjust, the changes in flow rate that the residual pressure head of automatic elimination pipe network and pressure surge cause, and constant inlet outlet pressure differential, contributes to stable system and run.
Preferably, described pipeline is copper pipe.Because copper pipe has, intensity is good, compression resistance, is applicable to the gas make-up pipeline of pressure.
The utility model structure is simply easy to use, can automatically supplement the SF revealed in sleeve pipe in time
6gas, saves manpower, avoids SF
6the excessive sleeve pipe that causes of quantity of gas leakage is scrapped, and causes tremendous economic to lose; Avoid simultaneously and cause serious consequence because sleeve pipe loses insulating effect.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein, 1, SF
6container, 2, pipeline, 3, pressure difference valve, 4, gas charging valve, 5, sleeve pipe, 6, pressure gauge.
Embodiment
A kind of bushing shell for transformer SF
6gas make-up device, comprises one and is fixed on sleeve pipe 5 with the sleeve pipe 5, of gas charging valve 4 and raises SF on seat
6container 1 and be connected to SF by pipeline 2
6pressure difference valve 3 between container 1 and sleeve pipe 5, described pressure difference valve 3 is self-powering type pressure difference valve.Described pressure difference valve 3 is connected with the gas charging valve 4 of sleeve pipe 5 by pipeline 2, and described pipeline 2 is copper pipe.Before and after described pressure difference valve 3, pipeline is separately installed with pressure gauge 6.
First according to SF in sleeve pipe 5
6pressure when gas reaches technological requirement presets pressure reduction by the pressure setting device setting of pressure difference valve 3 itself, as controlled Compress Spring by pressure regulation valve rod, upstream pressure P1 when meeting technological requirement, downstream pressure P2, the default pressure reduction that △ Pi (△ Pi=P1-P2) is pressure difference valve, under valve, film chamber pressure P1 and P2 adds upper spring and is balanced each other by the thrust that compressive strain produces.Along with Leakage Gas in sleeve pipe, downstream pressure P2 reduces, and front and back pressure reduction is greater than default pressure reduction, and valve open is voluntarily to make-up gas in sleeve pipe, until valve closing when actual pressure differential is contracted to default pressure reduction.
Claims (5)
1. a bushing shell for transformer SF
6gas make-up device, is characterized in that: comprise one with sleeve pipe (5), a SF of gas charging valve (4)
6container (1) and be connected to SF by pipeline (2)
6pressure difference valve (3) between container (1) and sleeve pipe (5), described pressure difference valve (3) is connected with the gas charging valve (3) of sleeve pipe (5) by pipeline (2).
2. bushing shell for transformer SF according to claim 1
6gas make-up device, is characterized in that: described SF
6container (1) is fixed on sleeve pipe (5) and raises on seat.
3. bushing shell for transformer SF according to claim 1 and 2
6gas make-up device, is characterized in that: before described pressure difference valve, (3) afterwards pipeline are separately installed with pressure gauge (6).
4. bushing shell for transformer SF according to claim 3
6gas make-up device, is characterized in that: described pressure difference valve (3) is self-powering type pressure difference valve.
5. bushing shell for transformer SF according to claim 4
6gas make-up device, is characterized in that: described pipeline (2) is copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486454.XU CN204141227U (en) | 2014-08-27 | 2014-08-27 | A kind of bushing shell for transformer SF 6gas make-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486454.XU CN204141227U (en) | 2014-08-27 | 2014-08-27 | A kind of bushing shell for transformer SF 6gas make-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204141227U true CN204141227U (en) | 2015-02-04 |
Family
ID=52417911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420486454.XU Expired - Fee Related CN204141227U (en) | 2014-08-27 | 2014-08-27 | A kind of bushing shell for transformer SF 6gas make-up device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204141227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221640A (en) * | 2019-07-03 | 2019-09-10 | 清华大学 | A kind of controllable temperature pressure control air seal test platform auxiliary system |
| CN113933467A (en) * | 2021-10-26 | 2022-01-14 | 国网浙江省电力有限公司电力科学研究院 | Sulfur hexafluoride decomposition product gas pressure monitoring device based on gas in-situ detection |
-
2014
- 2014-08-27 CN CN201420486454.XU patent/CN204141227U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221640A (en) * | 2019-07-03 | 2019-09-10 | 清华大学 | A kind of controllable temperature pressure control air seal test platform auxiliary system |
| WO2021000464A1 (en) * | 2019-07-03 | 2021-01-07 | 清华大学 | Temperature- and pressure-controllable auxiliary system for gas seal testing platform |
| CN113933467A (en) * | 2021-10-26 | 2022-01-14 | 国网浙江省电力有限公司电力科学研究院 | Sulfur hexafluoride decomposition product gas pressure monitoring device based on gas in-situ detection |
| CN113933467B (en) * | 2021-10-26 | 2024-02-13 | 国网浙江省电力有限公司电力科学研究院 | Sulfur hexafluoride decomposition product air pressure monitoring device based on gas in-situ detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20180827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |