CN215343827U - A closed busbar gas pressure protection release device - Google Patents
A closed busbar gas pressure protection release device Download PDFInfo
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- CN215343827U CN215343827U CN202121573000.2U CN202121573000U CN215343827U CN 215343827 U CN215343827 U CN 215343827U CN 202121573000 U CN202121573000 U CN 202121573000U CN 215343827 U CN215343827 U CN 215343827U
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Abstract
The utility model discloses a gas pressure protection release device for a closed bus, which comprises an outer cylinder, a top cover, an inner pipe and an air supply pipe, wherein the lower end of the outer cylinder is closed, the upper end of the outer cylinder is open, the top cover is arranged at the top end of the outer cylinder and used for sealing the opening, the inner pipe is open at two ends, the upper end port of the inner pipe is fixed with the lower surface of the top cover in a sealing manner, the lower end of the inner pipe is a free end, an air supply hole for communicating the pipe cavity of the inner pipe with the outside is formed in the top cover, one end of the air supply pipe is arranged on the air supply hole, the other end of the air supply pipe is used for communicating with an external air tank, and a first through hole is formed in the part, positioned between the outer side wall of the inner pipe and the inner side wall of the outer cylinder, of the top cover. The utility model has the advantages of releasing over-high pressure and ensuring that the pressure is in a proper range, thereby protecting the enclosed bus.
Description
Technical Field
The utility model relates to a gas pressure protection release device for a closed bus.
Background
In the phase-isolated enclosed bus system of the power station, dry low-pressure compressed air is filled in the enclosed bus to prevent metal equipment from being affected with damp. If the pressure of the compressed air is too high, weak parts such as a seal of a closed bus bar are damaged, and gas leakage is caused. Therefore, there is a need for a gas pressure protection device that can release pressure when the pressure is too high, and ensure that the pressure is within a proper range.
Disclosure of Invention
In order to solve the problem that the gas leakage is caused because the weak parts such as the seal of the enclosed bus are damaged due to overhigh pressure of the compressed air, the utility model provides a gas pressure protection releasing device for the enclosed bus.
The utility model discloses a gas pressure protection release device for a closed bus, which comprises an outer cylinder, a top cover, an inner pipe and an air supply pipe, wherein the lower end of the outer cylinder is closed, the upper end of the outer cylinder is opened, the top cover is arranged at the top end of the outer cylinder and is used for sealing the opening, the inner pipe is opened at two ends of the outer cylinder, the upper end port of the inner pipe is fixed with the lower surface of the top cover in a sealing manner, the lower end of the inner pipe is a free end, the top cover is provided with an air supply hole for communicating the pipe cavity of the inner pipe with the outside, one end of the air supply pipe is arranged on the air supply hole, the other end of the air supply pipe is used for communicating an external air tank, and a first through hole is formed in the part, positioned between the outer side wall of the inner pipe and the inner side wall of the outer cylinder, of the top cover. The first through hole is used as both a liquid feeding hole and an exhaust hole.
In order to separate the liquid adding function and the air exhausting function, a plug capable of being plugged and pulled is arranged in the first through hole, and a second through hole is arranged at the upper end of the wall of the outer cylinder. Therefore, the first through hole is used as a liquid adding hole, and a plug is covered after liquid adding is finished to prevent foreign matters from entering; the second through hole serves as an exhaust hole.
In order to save materials, the inner pipe is perpendicular to the top cover, and the length of the inner pipe is smaller than that of the outer cylinder.
Has the advantages that: according to the gas pressure protection release device for the closed bus, damping liquid with high density such as glycerin is filled into the interior of the closed bus from the first through hole, when the gas pressure in the closed bus is 0, the height of the liquid level between the inner pipe and the outer cylinder is consistent, the liquid level of the inner pipe descends along with the rise of the gas pressure in the closed bus, the liquid level of the outer cylinder rises, when the pressure rises to the upper limit position of the pressure, the liquid level of the inner pipe descends to the limit position, at the moment, the gas in the closed bus is discharged to the outer cylinder to generate bubbles, the bubbles float to the top of the outer cylinder, and the gas is discharged through the first through hole in the top, so that the pressure is guaranteed not to rise any more; the plug is arranged in the first through hole to prevent foreign matters from entering, and the second through hole is arranged at the upper end of the wall of the outer cylinder to separate the liquid adding function from the air exhausting function, namely liquid is added from the first through hole at the top and air is exhausted from the second through hole; by making the inner tube perpendicular to the top cover, the length of the inner tube is less than that of the outer tube, thereby saving materials.
Drawings
FIG. 1 is a schematic structural view of a closed bus gas pressure protection release device according to the present invention;
in the figure, 1, an outer cylinder; 2. a top cover; 3. an inner tube; 4. a gas supply pipe; 5. a plug; 6. a second through hole; 7. and (3) glycerol.
Detailed Description
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples.
Examples
As shown in fig. 1, a closed bus gas pressure protection releasing device comprises an outer cylinder 1 with a closed lower end and an open upper end, a top cover 2 arranged at the top end of the outer cylinder 1 for sealing the opening, an inner tube 3 with two open ends and a gas supply tube 4, wherein the upper end of the inner tube 3 is fixed with the lower surface of the top cover 2 in a sealing way, the lower end is a free end, namely, the inner tube 3 is vertical to the top cover 2, and the length of the inner tube 3 is smaller than that of the outer cylinder 1; offer the air supply hole with the lumen and the outside intercommunication of inner tube 3 on top cap 2, air supply pipe 4 one end is installed on the air supply hole, and the other end is used for communicateing outside gas pitcher, and the part that is located between the lateral wall of inner tube 3 and the inside wall of urceolus 1 on top cap 2 is offered first through-hole and is regarded as the filling opening, sets up plug 5 in first through-hole, sets up second through-hole 6 as the exhaust hole on the section of thick bamboo wall of urceolus 1.
In practical use, the plug 5 is pulled out firstly, the glycerin 7 is filled into the plug 5 to a preset height from the first through hole, then the plug 5 is plugged in to prevent foreign matters from entering, and then the air supply pipe 4 is communicated with an external air tank. When the gas pressure in the closed bus is 0, the liquid level height between the inner tube 3 and the outer tube 1 is consistent, along with the increase of the gas pressure in the closed bus, the liquid level of the inner tube 3 is lowered, the liquid level of the outer tube 1 is raised, when the pressure is raised to the upper limit position of the pressure, the liquid level of the inner tube 3 is lowered to the limit position, at the moment, the gas in the closed bus is discharged to the outer tube 1, bubbles are generated, the bubbles float to the top of the outer tube 1, the gas is discharged through the second through hole 6 at the top, and therefore the pressure is guaranteed not to be raised any more. The glycerol 7 is injected as a damping liquid which is relatively dense and does not absorb moisture from the air.
The above-mentioned techniques not specifically mentioned refer to the prior art.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (3)
1. The utility model provides a closed bus gas pressure protection release, its characterized in that, including the urceolus of lower extreme closed upper end open-ended, the setting is at urceolus top with the sealed top cap of opening, both ends open-ended inner tube and air supply pipe, inner tube upper end and top cap lower surface are sealed fixed, the lower extreme is the free end, set up the air supply hole with inner tube lumen and outside intercommunication on the top cap, air supply pipe one end is installed on the air supply hole, the other end is used for communicateing outside gas pitcher, the part that is located between inner tube lateral wall and the urceolus inside wall on the top cap sets up first through-hole.
2. The enclosed busbar gas pressure protection relief device according to claim 1, wherein a plug is disposed in the first through hole and a second through hole is disposed at an upper end of the outer cylindrical wall.
3. The enclosed busbar gas pressure protection relief device according to claim 2, wherein the inner tube is perpendicular to the top cover, the inner tube having a length less than the length of the outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121573000.2U CN215343827U (en) | 2021-07-12 | 2021-07-12 | A closed busbar gas pressure protection release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121573000.2U CN215343827U (en) | 2021-07-12 | 2021-07-12 | A closed busbar gas pressure protection release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215343827U true CN215343827U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121573000.2U Active CN215343827U (en) | 2021-07-12 | 2021-07-12 | A closed busbar gas pressure protection release device |
Country Status (1)
| Country | Link |
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| CN (1) | CN215343827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381366A (en) * | 2021-07-12 | 2021-09-10 | 国家电网有限公司 | Gas pressure protection release device for enclosed bus |
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2021
- 2021-07-12 CN CN202121573000.2U patent/CN215343827U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381366A (en) * | 2021-07-12 | 2021-09-10 | 国家电网有限公司 | Gas pressure protection release device for enclosed bus |
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