CN220435780U - End plugging mechanism for gas pipeline - Google Patents
End plugging mechanism for gas pipeline Download PDFInfo
- Publication number
- CN220435780U CN220435780U CN202322161755.7U CN202322161755U CN220435780U CN 220435780 U CN220435780 U CN 220435780U CN 202322161755 U CN202322161755 U CN 202322161755U CN 220435780 U CN220435780 U CN 220435780U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- sealing block
- gas
- outer adjusting
- plugging
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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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 210000001503 joint Anatomy 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 41
- 238000000034 method Methods 0.000 abstract description 7
- 239000002737 fuel gas Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model relates to the technical field of gas overhaul, in particular to a gas pipeline end plugging mechanism. The technical scheme includes that the gas pipeline comprises a connecting pipeline arranged at the end part of a gas pipeline and an outer adjusting pipeline detachably connected with the connecting pipeline, wherein an installing pipeline coaxial with the outer adjusting pipeline is fixed at one side pipe end of the outer adjusting pipeline; the inner side of the outer adjusting pipeline is fixed with a plugging sleeve through a connecting block, the inner side of the connecting pipeline is fixed with a sealing block through a fixing rod, and the sealing block and the plugging sleeve are positioned on the same axis; the plugging sleeve moves along the axial direction of the outer adjusting pipeline along with the movement of the outer adjusting pipeline and is in butt joint with the sealing block, and when the sealing block is in butt joint with the plugging sleeve, the pipe orifice of the connecting pipeline is in a closed state. According to the utility model, the plugging of the pipe orifice of the connecting pipeline is completed through the plugging sleeve and the sealing block, and when the sealing block is separated from the plugging sleeve, fuel gas can normally circulate through the connecting pipeline, the stepped groove and the mounting pipeline, so that the problem of fuel gas leakage in the dismounting process is avoided, and the safety is improved.
Description
Technical Field
The utility model relates to the technical field of gas overhaul, in particular to a gas pipeline end plugging mechanism.
Background
In the process of overhauling or maintaining the gas pipeline, the whole section of the gas pipeline is required to be subjected to gas stopping and emptying operations due to welding construction. After the pressure in the pipeline is zero, residual fuel gas is very likely to exist in the pipeline due to the large pipe diameter, long pipeline, large height drop and the like, and if the fuel gas is released to the outside once, safety accidents caused by explosion of the leaked fuel gas are very likely to occur. Therefore, in the whole process of maintaining the gas pipeline, the gas pipeline is required to be plugged and welded with fire so as to prevent gas in the gas pipe from leaking and exploding, and meanwhile, the safety of the whole maintenance construction site is ensured.
In the prior art, when the gas pipeline is plugged by welding operation, because the operation of the plugging device is complex, a certain time is required to be occupied, and therefore, the risk of partial gas leakage occurs in a construction site, meanwhile, after the gas pipeline is connected, the plugging mechanism is required to be dismantled, and in the dismantling process, the risk of leakage is also provided, and the plugging mechanism cannot be practically used as a part of the gas pipeline, so that the problem is solved by proposing a plugging mechanism at the end part of the gas pipeline.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model provides the gas pipeline end plugging mechanism which has good sealing performance and can be directly connected for use after the gas pipeline is connected.
The technical scheme of the utility model is as follows: the gas pipeline end plugging mechanism comprises a connecting pipeline arranged at the end part of the gas pipeline and an outer adjusting pipeline detachably connected with the connecting pipeline, wherein an installing pipeline coaxial with the outer adjusting pipeline is fixed at one side pipe end of the outer adjusting pipeline;
the inner side of the outer adjusting pipeline is fixed with a plugging sleeve through a connecting block, the inner side of the connecting pipeline is fixed with a sealing block through a fixing rod, and the sealing block and the plugging sleeve are positioned on the same axis;
the plugging sleeve moves along the axial direction of the outer adjusting pipeline along with the movement of the outer adjusting pipeline and is in butt joint with the sealing block, and when the sealing block is in butt joint with the plugging sleeve, the pipe orifice of the connecting pipeline is in a closed state.
Preferably, a first thread section is machined on the inner circumferential surface of the outer adjusting pipeline, and a second thread section in threaded connection with the first thread section is arranged at the pipe orifice of the connecting pipeline;
the outer adjusting pipeline moves along the axial direction of the outer adjusting pipeline through the second thread section and the first thread section in the rotating process.
Preferably, the sealing block is a double-layer round table, and the plugging sleeve is provided with a step-shaped groove matched with the sealing block in shape and size.
Preferably, when the sealing block is positioned in the stepped groove, the plugging sleeve is in close contact with the inner wall of the connecting pipeline.
Preferably, a plurality of sealing rings are arranged at the opening of the outer adjusting pipeline, and each sealing ring is in close contact with the outer circumferential surface of the connecting pipeline.
Preferably, the pipe orifice part of the mounting pipe is provided with a flange plate connected with the external fuel gas extension pipe.
Preferably, the outer circumference surface of the outer adjusting pipeline is provided with anti-skid patterns.
Compared with the prior art, the utility model has the following beneficial technical effects:
according to the utility model, the plugging mechanism is arranged at the end part of the gas pipeline, the plugging sleeve and the sealing block are rotated by the outer adjusting pipeline, so that the plugging of the pipe orifice of the connecting pipeline is completed, the sealing block is separated from the plugging sleeve by the reverse rotation of the outer adjusting pipeline after the other section of gas pipeline is connected to the mounting pipeline, and the gas can normally circulate through the connecting pipeline, the stepped groove and the mounting pipeline, so that the problem of gas leakage in the dismounting process is avoided, and the safety is improved.
Drawings
FIG. 1 shows a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the structure of the gas pipeline in the unblocked state in the utility model;
FIG. 3 is a schematic diagram of a gas pipeline in a blocking state;
reference numerals: 20 a plugging mechanism; 21 a connecting pipeline; 22 outer conditioning duct; 23, installing a pipeline; 24 sealing rings; 25 fixing rods; 26 sealing blocks; 27 a second thread segment; 28 a first thread segment; 29 step grooves; 210 plugging the sleeve; 211 connecting blocks; 100 gas pipeline.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Examples
As shown in fig. 1 and 2, the end plugging mechanism 20 of the gas pipeline 100 provided by the utility model comprises a connecting pipeline 21 installed at the end of the gas pipeline 100 and an outer adjusting pipeline 22 detachably connected with the connecting pipeline 21, wherein an installation pipeline 23 coaxial with the outer adjusting pipeline 22 is fixed at one pipe end of the outer adjusting pipeline 22;
the inner side of the outer adjusting pipeline 22 is fixed with a plugging sleeve 210 through a connecting block 211, the inner side of the connecting pipeline 21 is fixed with a sealing block 26 through a fixing rod 25, and the sealing block 26 and the plugging sleeve 210 are positioned on the same axis;
the plugging sleeve 210 moves along the axial direction of the outer adjusting pipe 22 along with the movement of the outer adjusting pipe 22 and is in butt joint with the sealing block 26, and when the sealing block 26 is in butt joint with the plugging sleeve 210, the pipe orifice of the connecting pipe 21 is in a closed state.
Through installing the shutoff mechanism 20 in the tip of gas pipeline 100, thereby rotatory outer adjusting tube way 22 makes shutoff cover 210 and sealing block 26 accomplish the shutoff to connecting tube way 21 mouth of pipe department, and installation pipeline 23 is after connecting another section gas pipeline, through reverse rotation outer adjusting tube way 22, makes sealing block 26 and shutoff cover 210 separation, and gas accessible connecting tube way 21, ladder-type groove 29 and installation pipeline 23 normally circulate, has avoided the gas leakage problem of dismouting in-process, has improved the security.
The inner circumferential surface of the outer adjusting pipeline 22 is provided with a first thread section 28, and the pipe orifice of the connecting pipeline 21 is provided with a second thread section 27 in threaded connection with the first thread section 28;
as shown in connection with fig. 3, the outer adjustment tube 22 is moved in the axial direction of the outer adjustment tube 22 during rotation by the second thread segments 27 and the first thread segments 28.
The second threaded section 27 is engaged with the first threaded section 28 by rotating the outer adjustment pipe 22, and the plugging sleeve 210 is engaged with the sealing block 26 to form a closed structure by the threaded engagement relationship between the second threaded section 27 and the first threaded section 28.
The sealing block 26 is a double-layer truncated cone, and the plugging sleeve 210 is provided with a stepped groove 29 matched with the shape and the size of the sealing block 26. The sealing structure with multiple layers is formed by the arrangement of the round table and the arrangement of the stepped groove 29, so that the sealing performance during plugging is improved.
When the sealing block 26 is positioned in the stepped groove 29, the blocking sleeve 210 is in close contact with the inner wall of the connecting pipe 21.
The opening of the outer adjusting pipe 22 is provided with a plurality of sealing rings 24, and each sealing ring 24 is in close contact with the outer circumferential surface of the connecting pipe 21. The sealing performance of the gas pipeline is improved by the contact of the plugging sleeve 210 and the inner wall of the connecting pipeline 21, so that gas leakage is further avoided, and the safety is improved.
The mouth piece of the mounting duct 23 has a flange for connection to an external gas extension duct. The flange plate can be used for connecting with another gas pipeline.
The outer circumference of the outer adjusting pipe 22 is processed with anti-slip patterns. The provision of anti-skid threads facilitates the rotation of the outer adjustment conduit 22 during operation.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model is understood by those of ordinary skill in the art according to the specific circumstances.
The above-described embodiments are merely one or several preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
Claims (7)
1. Gas pipeline (100) tip shutoff mechanism (20), its characterized in that: the gas pipeline comprises a connecting pipeline (21) arranged at the end part of a gas pipeline (100) and an outer adjusting pipeline (22) detachably connected with the connecting pipeline (21), wherein an installation pipeline (23) coaxial with the outer adjusting pipeline is fixed at one pipe end of the outer adjusting pipeline (22);
a sealing block (26) is fixed on the inner side of the outer adjusting pipeline (22) through a connecting block (211), a sealing block (26) is fixed on the inner side of the connecting pipeline (21) through a fixing rod (25), and the sealing block (26) and the sealing block (210) are positioned on the same axis;
the plugging sleeve (210) moves along the axial direction of the outer adjusting pipeline (22) along with the movement of the outer adjusting pipeline (22) and is in butt joint with the sealing block (26), and when the sealing block (26) is in butt joint with the plugging sleeve (210), the pipe orifice of the connecting pipeline (21) is in a closed state.
2. The end plugging mechanism (20) of a gas pipeline (100) according to claim 1, wherein a first thread section (28) is machined on the inner circumferential surface of the outer adjusting pipeline (22), and a second thread section (27) in threaded connection with the first thread section (28) is arranged at the pipe orifice of the connecting pipeline (21);
the outer adjustment pipe (22) is moved in the axial direction of the outer adjustment pipe (22) by the second thread segments (27) and the first thread segments (28) during rotation.
3. The gas conduit (100) end closure mechanism (20) of claim 2 wherein said sealing block (26) is double-layered, frustoconical, said closure sleeve (210) having a stepped slot (29) sized to match the shape of said sealing block (26).
4. A gas conduit (100) end closure mechanism (20) according to claim 3, wherein the closure sleeve (210) is in close contact with the inner wall of the connecting conduit (21) when the sealing block (26) is located in the stepped groove (29).
5. The gas pipe (100) end plugging mechanism (20) according to claim 1, wherein a plurality of seal rings (24) are provided at the opening of the outer adjustment pipe (22), each seal ring (24) being in close contact with the outer circumferential surface of the connection pipe (21).
6. The gas conduit (100) end closure mechanism (20) of claim 1, wherein the nozzle portion of the mounting conduit (23) has a flange for connection to an external gas extension conduit.
7. The gas conduit (100) end closure mechanism (20) of claim 5, wherein said outer adjustment conduit (22) has anti-slip threads machined on its outer circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322161755.7U CN220435780U (en) | 2023-08-11 | 2023-08-11 | End plugging mechanism for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322161755.7U CN220435780U (en) | 2023-08-11 | 2023-08-11 | End plugging mechanism for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220435780U true CN220435780U (en) | 2024-02-02 |
Family
ID=89692890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322161755.7U Active CN220435780U (en) | 2023-08-11 | 2023-08-11 | End plugging mechanism for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220435780U (en) |
-
2023
- 2023-08-11 CN CN202322161755.7U patent/CN220435780U/en active Active
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