CN216555836U - Sealing device for preventing gas leakage during gas pipeline maintenance - Google Patents
Sealing device for preventing gas leakage during gas pipeline maintenance Download PDFInfo
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- CN216555836U CN216555836U CN202122754651.8U CN202122754651U CN216555836U CN 216555836 U CN216555836 U CN 216555836U CN 202122754651 U CN202122754651 U CN 202122754651U CN 216555836 U CN216555836 U CN 216555836U
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- blind plate
- gas
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Abstract
The utility model relates to a sealing device for gas pipeline maintenance gas leakage prevention, which comprises two connecting flanges for connecting two gas pipelines and a sealing element body arranged between the two connecting flanges, wherein the sealing element body comprises a blind plate, short ribs and a blind ring, a plurality of short ribs are annularly arranged on the end surface of one side of the blind plate, one end of each short rib is fixedly connected with the end surface of one side of the blind plate, the other end of each short rib is fixedly connected with the blind ring, a bolt hole is arranged on the blind plate and is fixedly connected with a flange corresponding to a normally running gas pipeline through a bolt, a threaded hole is arranged on the blind ring, and the threaded hole is fixedly connected with a flange corresponding to the gas pipeline to be maintained through a bolt; the utility model can effectively solve the problem of continuous leakage of the coal gas at the coal gas operation end, thereby reducing the operation and the risk to personnel.
Description
Technical Field
The utility model relates to a sealing device for preventing gas leakage during gas pipeline maintenance.
Background
When the gas pipeline needs to be overhauled and stopped to be blown and swept, no diffusion pipe is arranged at the blind plate point due to the construction problem, flat iron needs to be added at the blind plate point to stretch the blind plate for diffusion, but the flat iron causes that the blind plate screw cannot be screwed, so that gas can be continuously leaked from the gas pipeline at the operation side, and great hidden danger is brought to the operation and surrounding personnel.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides the sealing device for preventing gas leakage during gas pipeline maintenance, which can effectively solve the problem of continuous gas leakage at a gas operation end, thereby reducing the operation and the risk to personnel.
The technical scheme of the utility model for solving the technical problems is as follows: the sealing device comprises two connecting flanges for connecting two gas pipelines and a sealing piece body arranged between the two connecting flanges, wherein the sealing piece body comprises a blind plate, a short rib and a blind ring, a plurality of short ribs are arranged on one side end face of the blind plate in a surrounding mode, one end of each short rib is fixedly connected with one side end face of the blind plate, the other end of each short rib is fixedly connected with the blind ring, a bolt hole is formed in the blind plate and is fixedly connected with a flange corresponding to a normally running gas pipeline through a bolt, a threaded hole is formed in the blind ring, and the threaded hole is fixedly connected with the flange corresponding to the gas pipeline to be overhauled through a screw.
The utility model further defines the technical scheme as follows:
preferably, both sides of the short rib are respectively welded with the blind ring and the blind plate.
Preferably, the length of the short rib is 1-3 cm.
Preferably, the number of the short ribs is 8-20, and a gap is left between two adjacent short ribs.
Preferably, metal sealing gaskets are arranged between the blind plate and the blind ring and the corresponding flanges respectively.
The utility model has the beneficial effects that: the gas leakage prevention device is simple in structure, can prevent gas at a gas operation end from continuously leaking, and therefore reduces operation and risks to personnel.
Drawings
FIG. 1 is a schematic view of the mounting structure of the present invention;
fig. 2 is a schematic structural view of the sealing member body of the present invention.
Detailed Description
Example 1
The embodiment provides a sealing device for preventing gas leakage during gas pipeline maintenance, which has a structure shown in fig. 1-2, and comprises two connecting flanges 1 for connecting two gas pipelines and a sealing element body arranged between the two connecting flanges, wherein the sealing element body comprises a blind plate 2, short ribs 3 and a blind ring 4, 16 short ribs with the length of 2cm are arranged on the end surface of one side of the blind plate in a surrounding manner, a gap is reserved between every two adjacent short ribs, one end of the short rib is welded with one side end face of the blind plate, the other end is welded with the blind ring, the blind plate is provided with a bolt hole, the bolt hole is fixedly connected with a flange corresponding to a gas pipeline which normally runs through a bolt, a threaded hole is arranged on the blind ring and is fixedly connected with a flange corresponding to the gas pipeline to be overhauled through a screw, and metal sealing gaskets 5 are respectively arranged between the blind plate and the blind ring and the corresponding flanges.
This embodiment simple structure, moreover, the steam generator is simple in structure, can prevent that coal gas operation end coal gas from continuously revealing, thereby reduce the operation and the risk to personnel, because the blind plate is the plane, can get the fine contact of flange with the operation pipeline, set up the metallic packing pad between the two simultaneously, good leakproofness has, guarantee that the coal gas in the operation pipeline does not leak, be provided with the screw hole on the blind ring simultaneously, can be more firm with the coal gas piping connection of maintenance end, it diffuses through the space between the short muscle to overhaul the interior sweeping gas of coal gas pipe simultaneously.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations are within the scope of the present invention.
Claims (5)
1. The utility model provides a sealing device for gas pipeline overhauls leak protection gas, includes two flange of connecting two gas pipeline and sets up the sealing member body in the middle of two flange, its characterized in that, the sealing member body includes blind plate, short muscle and blind circle, blind plate one side end face is encircleed to be provided with a plurality of short muscle, this short muscle one end and blind plate one side terminal surface fixed connection, the other end with blind circle fixed connection, be provided with the bolt hole on the blind plate to this bolt hole passes through the bolt and the flange fixed connection that normal operating gas pipeline corresponds, be provided with the screw hole on the blind circle to this screw hole passes through the flange fixed connection that screw and required maintenance gas pipeline correspond.
2. The sealing device for preventing gas leakage in gas pipeline maintenance according to claim 1, wherein: and two sides of the short rib are respectively welded with the blind ring and the blind plate.
3. The sealing device for preventing gas leakage in gas pipeline maintenance according to claim 2, wherein: the length of the short ribs is 1-3 cm.
4. The sealing device for preventing gas leakage in gas pipeline maintenance according to claim 3, wherein: the number of the short ribs is 8-20, and a gap is reserved between every two adjacent short ribs.
5. The sealing device for preventing gas leakage in gas pipeline maintenance according to claim 1, wherein: and metal sealing gaskets are arranged between the blind plate and the blind ring and the corresponding flanges respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754651.8U CN216555836U (en) | 2021-11-11 | 2021-11-11 | Sealing device for preventing gas leakage during gas pipeline maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754651.8U CN216555836U (en) | 2021-11-11 | 2021-11-11 | Sealing device for preventing gas leakage during gas pipeline maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555836U true CN216555836U (en) | 2022-05-17 |
Family
ID=81571609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122754651.8U Active CN216555836U (en) | 2021-11-11 | 2021-11-11 | Sealing device for preventing gas leakage during gas pipeline maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216555836U (en) |
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2021
- 2021-11-11 CN CN202122754651.8U patent/CN216555836U/en active Active
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