CN201289977Y - Aeration cabinet air chamber - Google Patents
Aeration cabinet air chamber Download PDFInfo
- Publication number
- CN201289977Y CN201289977Y CNU2009200355592U CN200920035559U CN201289977Y CN 201289977 Y CN201289977 Y CN 201289977Y CN U2009200355592 U CNU2009200355592 U CN U2009200355592U CN 200920035559 U CN200920035559 U CN 200920035559U CN 201289977 Y CN201289977 Y CN 201289977Y
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- China
- Prior art keywords
- gas
- air chamber
- gas chamber
- chamber
- insulating
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a gas chamber for a gas charging cabinet, and relates to a switching device. The gas chamber comprises an inner gas chamber with a built-in high-voltage element and an outer gas chamber arranged outside the inner gas chamber, wherein, both the inner gas chamber and the outer gas chamber are filled with SF6 insulating gas. The gas chamber adopting the double-layered structure andfilled with the SF6 insulating gas can keep the concentration of the SF6 insulating gas in the inner gas chamber in a proper range for a long time effectively. Meanwhile, the priority mode of the utility model is that the concentration of the SF6 insulating gas in the outer gas chamber is higher than that of the SF6 insulating gas in the inner gas chamber. As gas always permeates from a high-density part to a low-density part, the gas charging mode can better prevent the leakage of the SF6 insulating gas in the inner gas chamber so as to further improve the sealing performance of the gas chamber.
Description
Technical field
The utility model relates to a kind of switchgear, relates in particular to a kind of gas chamber of aeration cabinet.
Background technology
The inflation cabinet is such as bus with all high voltage devices, circuit breaker, on-load switch, isolating switch and instrument transformer etc. are enclosed in the sealed air chamber, be filled with the SF6 insulating gas in the sealed air chamber, because its sealing, built-in high voltage device is not subjected to the influence of external environment, as condensation, filthy, toy and chemical substance etc., safe ready, few maintenance even non-maintaining, can be used on the abominable place of environment, because the SF6 gas that is filled has the good insulation performance performance, dwindled the overall dimension of inflation cabinet greatly, helped being convenient to transportation and installation towards the miniaturization development.
In the production process of inflation cabinet, the sealing property of sealed air chamber is one of them crucial parameter, the year leak rate that should satisfy SF6 gas in general remains on below 0.5%, built-in high voltage device useful life is about 30 years, present air chamber adopts single layer structure, being about to high voltage device is built in one or two individual layer sealed air chamber, because there is welding in air chamber, the gap that assembling produces, and the aging gap that is produced of potted component, inevitably can produce gas leakage, SF6 insulating gas in the sealed air chamber is outwards oozed out, and the indoor infiltration of air outside vigor, because manufacturer is numerous, technical force limited, also there is very big difference in the sealing property of air chamber, causing in the market, only a few producer just can produce up-to-standard product, some underproof product comes into the market, and brings very big potential safety hazard to the user, so how to produce a kind of simple in structure, the gas chamber of aeration cabinet of good seal performance just becomes a very important research direction.
The utility model content
The utility model is at above-mentioned defective, and purpose is to provide a kind of simple in structure, gas chamber of aeration cabinet that sealing property is excellent.
The technical solution of the utility model is: the utility model comprises the interior air chamber of built-in high voltage device and is arranged on the outer outer air chamber of interior air chamber, all is filled with the SF6 insulating gas in the inside and outside air chamber.
SF6 gas-insulated concentration in the concentration of the SF6 insulating gas in the outer air chamber of the utility model is higher than in the air chamber.
Outer air chamber is provided with inflation inlet.
Air chamber of the present utility model adopts double-decker; and in two-layer, all be filled with the SF6 insulating gas; effectively protected the SF6 insulating gas concentration of interior air chamber to remain on a suitable scope for a long time; mode of priority of the present utility model is the SF6 insulating gas concentration in the air chamber in the interior SF6 insulating gas concentration of outer air chamber is higher than simultaneously; because gas infiltration always from high density toward low-density; so the SF6 insulating gas in kind inflation mode can suppress preferably in the air chamber leaks outside, and has further improved the sealing property of air chamber.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is that outer air chamber, 2 is that interior air chamber, 3 is high voltage device among the figure.
Embodiment
The utility model comprises the interior air chamber 2 and the outer air chamber 1 that is arranged on outside the interior air chamber 2 of built-in high voltage device 3, all is filled with the SF6 insulating gas in the inside and outside air chamber; SF6 gas-insulated concentration in the concentration of the SF6 insulating gas in the outer air chamber 1 is higher than in the air chamber 2; Outer air chamber 1 is provided with inflation inlet.
Below in conjunction with accompanying drawing the utility model is described further:
The utility model is built in various high voltage devices 3 in the interior air chamber 2, because the arrangement of SF6 gas, the SF6 insulating gas of air chamber 2 remains on suitable concentration for a long time in making, simultaneously in order further to guarantee the concentration of the gas in the interior air chamber 2, outer air chamber 1 of the present utility model is established inflation inlet, can pour the SF6 insulating gas in the air chamber 1 outward as required at any time, to guarantee that outer air chamber 1 interior SF6 insulating gas is higher than the SF6 insulating gas concentration in the interior air chamber 2, with exosmosing of the SF6 insulating gas in the air chamber in suppressing 2, interior air chamber 2 of the present utility model is a full-closed structure.
Claims (3)
1, gas chamber of aeration cabinet is characterized in that, comprises the interior air chamber of built-in high voltage device and is arranged on the outer outer air chamber of interior air chamber, all is filled with the SF6 insulating gas in the inside and outside air chamber.
2, gas chamber of aeration cabinet according to claim 1 is characterized in that, the SF6 gas-insulated concentration in the concentration of the SF6 insulating gas in the outer air chamber is higher than in the air chamber.
3, gas chamber of aeration cabinet according to claim 1 is characterized in that, outer air chamber is provided with inflation inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200355592U CN201289977Y (en) | 2009-03-13 | 2009-03-13 | Aeration cabinet air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200355592U CN201289977Y (en) | 2009-03-13 | 2009-03-13 | Aeration cabinet air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289977Y true CN201289977Y (en) | 2009-08-12 |
Family
ID=40981658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200355592U Expired - Lifetime CN201289977Y (en) | 2009-03-13 | 2009-03-13 | Aeration cabinet air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289977Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834413B (en) * | 2009-03-13 | 2012-09-05 | 扬州北辰电气设备有限公司 | Gas chamber of aeration cabinet |
| CN115000869A (en) * | 2022-05-20 | 2022-09-02 | 山东汇能电气有限公司 | Aerify cabinet air chamber seal structure and aerify cabinet |
-
2009
- 2009-03-13 CN CNU2009200355592U patent/CN201289977Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834413B (en) * | 2009-03-13 | 2012-09-05 | 扬州北辰电气设备有限公司 | Gas chamber of aeration cabinet |
| CN115000869A (en) * | 2022-05-20 | 2022-09-02 | 山东汇能电气有限公司 | Aerify cabinet air chamber seal structure and aerify cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091127 Address after: No. 58, Hung Road, Yangzhou Development Zone, Jiangsu, China: 225009 Co-patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Patentee after: Yangzhou Beichen Electric Equipment Co Address before: No. 58, Hung Road, Yangzhou Development Zone, Jiangsu, China: 225009 Patentee before: Yangzhou Beichen Electric Equipment Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090812 Effective date of abandoning: 20090313 |