CN219910698U - Plug for wellhead maintenance - Google Patents
Plug for wellhead maintenance Download PDFInfo
- Publication number
- CN219910698U CN219910698U CN202321296303.3U CN202321296303U CN219910698U CN 219910698 U CN219910698 U CN 219910698U CN 202321296303 U CN202321296303 U CN 202321296303U CN 219910698 U CN219910698 U CN 219910698U
- Authority
- CN
- China
- Prior art keywords
- conical
- rubber sealing
- sealing cylinder
- tube
- plug
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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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- 238000012423 maintenance Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The utility model belongs to a blanking plug, in particular to a blanking plug for wellhead maintenance, which consists of a conical blanking tube and a conical rubber sealing cylinder; the outer conical surface of the conical plugging tube is provided with 3T-shaped ring grooves, the top surface of the conical plugging tube is provided with a liquid discharge bent tube, and the end part of the liquid discharge bent tube is provided with connecting threads; the inner conical surface of the conical rubber sealing cylinder is provided with 3T-shaped annular tables which can be clamped and embedded in the T-shaped annular grooves, and the conical rubber sealing cylinder is sleeved on the conical plugging pipe through the T-shaped annular tables which are clamped and embedded in the T-shaped annular grooves; the cone angle of the conical plugging tube is 30 degrees; the cone angle of the conical rubber sealing cylinder is 30 degrees; the wall thickness of the conical rubber sealing cylinder is 8 mm. The plug is used for plugging residual liquid flow of a wellhead or a pipe network pipeline after valve closing and emptying. On one hand, the device does not need to be installed and fixed, is convenient to operate and can guide liquid rapidly; on the other hand, the liquid guide device can be used for the liquid guide of pipelines with certain size and specification in a certain range, reduces the cost and is economical and applicable.
Description
Technical Field
The utility model relates to a blanking plug, in particular to a blanking plug for wellhead maintenance.
Background
When repairing or replacing the wellhead valve of the oil or water extraction well, the valve of the bottom hole or the main line of the pipe network is closed after stopping production. However, the phenomenon of the valve being not tightly closed due to the aging of the valve often occurs, and because of the pressure in the bottom of the well or a pipe network, if the valve is not tightly closed, residual liquid still flows out from the detached part of the maintained valve or flange after the valve is closed and emptied. If the residual liquid amount is large, a flange plate with a liquid discharge pipe is usually arranged on a flange at the disassembly part, and then the residual liquid is guided into a collecting tank. Therefore, flange plates for draining liquid of corresponding types are required to be prepared in advance, and then residual liquid is led out through the installation of bolts at the drain outlet. On the one hand, the flange plates are time-consuming and labor-consuming to install, the operation is inconvenient, the other hand needs to prepare liquid discharge flange plates of corresponding models in advance, the liquid discharge port flanges of different models need to prepare different liquid discharge flange plates, and the production cost is increased. If the residual liquid is less, liquid draining and guiding treatment is not generally carried out, so that the residual liquid overflows on a wellhead pipeline and the ground, and a maintenance site needs to be cleaned after maintenance is finished, so that the workload is increased, and the nearby environment is polluted.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a plug for wellhead maintenance, which is used for plugging residual liquid flow of a wellhead or a pipe network pipeline after valve closing and emptying. On one hand, the device does not need to be installed and fixed, is convenient to operate and can guide liquid rapidly; on the other hand, the liquid guide device can be used for the liquid guide of pipelines with certain size and specification in a certain range, reduces the cost and is economical and applicable.
The utility model adopts the technical scheme that: the plug for wellhead maintenance consists of a conical plugging tube and a conical rubber sealing cylinder; the outer conical surface of the conical plugging tube is provided with 3T-shaped ring grooves, the top surface of the conical plugging tube is provided with a liquid discharge bent tube, and the end part of the liquid discharge bent tube is provided with connecting threads; the inner conical surface of the conical rubber sealing cylinder is provided with 3T-shaped annular platforms which can be clamped and embedded in the T-shaped annular grooves, and the conical rubber sealing cylinder is sleeved on the conical plugging pipe through the T-shaped annular platforms which are clamped and embedded in the T-shaped annular grooves.
Further, the taper angle of the conical plugging tube is 30 degrees.
Further, the taper angle of the conical rubber sealing cylinder is 30 degrees.
Further, the wall thickness of the conical rubber sealing cylinder is not less than 5 mm.
Further, the wall thickness of the conical rubber seal cylinder is 8 mm.
The utility model has the beneficial effects that: a plug for wellhead maintenance is provided for plugging residual liquid flow of a wellhead or pipe network pipeline after valve closing and emptying. On one hand, the device does not need to be installed and fixed, is convenient to operate and can guide liquid rapidly; on the other hand, the liquid guide device can be used for the liquid guide of pipelines with certain size and specification in a certain range, reduces the cost and is economical and applicable.
Drawings
FIG. 1 is a schematic cross-sectional structure of a first embodiment;
FIG. 2 is a schematic view of the structure of a tapered occlusion tube according to the first embodiment;
FIG. 3 is a schematic view of the structure of a conical rubber seal cartridge in accordance with the first embodiment;
fig. 4 is a schematic use diagram of the first embodiment.
Detailed Description
Examples
Referring to the figures, a plug for wellhead maintenance consists of a conical plugging tube 1 and a conical rubber sealing cylinder 2; the outer conical surface of the conical plugging tube is provided with 3T-shaped ring grooves 11, the top surface of the conical plugging tube is provided with a liquid discharge bent tube 12, and the end part of the liquid discharge bent tube is provided with connecting threads 13; the inner conical surface of the conical rubber sealing cylinder is provided with 3T-shaped ring platforms 21 which can be clamped and embedded in the T-shaped ring grooves, and the conical rubber sealing cylinder is sleeved on the conical plugging pipe through the T-shaped ring platforms which are clamped and embedded in the T-shaped ring grooves; the cone angle of the conical plugging tube is 30 degrees; the cone angle of the conical rubber sealing cylinder is 30 degrees; the wall thickness of the conical rubber sealing cylinder is 8 mm.
Taking DN60-DN80 pipeline as an example, the pipeline with DN60-DN80 specification is the common pipeline in wellhead or pipe network. Wherein the internal diameter of the DN60 pipeline is 50-56 mm, and the internal diameter of the DN80 pipeline is 68-76 mm. The inner diameter of the pipeline for plugging the model with the specification is 66 mm, the outer diameter of the bottom end of the model plug is about 46 mm, and the outer diameter of the top end of the model plug is about 86 mm. Taking as an example a DN70 line with an internal diameter of 65 mm. When the valve of DN70 pipeline in wellhead or pipe network needs to be maintained or flange gasket is replaced, the main valve and related valve on the main line of wellhead liquid draining sleeve or pipe network are closed, and after the pipeline of valve to be disassembled is emptied and drained, the valve to be maintained is disassembled. After the valve is disassembled, the conical plug is quickly and forcefully inserted into the liquid outlet of the disassembled valve pipeline, and then a hammer or other tools are used for hammering the top of the plug, so that the plug is tightly and firmly expanded with the pipe orifice through the conical rubber sealing cylinder. Because the pipeline is subjected to emptying and pressure relief treatment, no pressure exists in the pipeline, and only residual liquid flows, the plugging device can be fixed through the expansion of the conical rubber barrel. Before the plug of the socket, the liquid discharge pipe is flexibly fixed on the bent pipe of the plug, and if the rubber hose with the threaded sleeve head is used for discharging liquid, the connector of the rubber hose is directly connected with the threads of the bent pipe. If a fire hose or other flexible drain is used, a tube clip or wire is used to secure the hose to the elbow. When the valve is installed after the valve is repaired, the blanking plug is taken down by screwing and knocking the bent pipe of the blanking plug. Because the conical rubber sealing cylinder is clamped and embedded in the T-shaped annular groove of the cone through the T-shaped annular table, on one hand, the rubber sealing cylinder cannot fall off when the plug is plugged, and on the other hand, the rubber sealing cylinder is a wearing part, so that the replacement is convenient.
Claims (5)
1. A blanking plug for well head maintenance, its characterized in that: the blanking plug consists of a conical blanking tube and a conical rubber sealing cylinder; the outer conical surface of the conical plugging tube is provided with 3T-shaped ring grooves, the top surface of the conical plugging tube is provided with a liquid discharge bent tube, and the end part of the liquid discharge bent tube is provided with connecting threads; the inner conical surface of the conical rubber sealing cylinder is provided with 3T-shaped annular platforms which can be clamped and embedded in the T-shaped annular grooves, and the conical rubber sealing cylinder is sleeved on the conical plugging pipe through the T-shaped annular platforms which are clamped and embedded in the T-shaped annular grooves.
2. A plug for wellhead maintenance according to claim 1, wherein: the taper angle of the conical plugging tube is 30 degrees.
3. A plug for wellhead maintenance according to claim 1, wherein: the taper angle of the conical rubber sealing cylinder is 30 degrees.
4. A blanking plug for wellhead maintenance according to claim 3, wherein: the wall thickness of the conical rubber sealing cylinder is not less than 5 mm.
5. A plug for wellhead maintenance as claimed in claim 4 wherein: the wall thickness of the conical rubber sealing cylinder is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321296303.3U CN219910698U (en) | 2023-05-26 | 2023-05-26 | Plug for wellhead maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321296303.3U CN219910698U (en) | 2023-05-26 | 2023-05-26 | Plug for wellhead maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219910698U true CN219910698U (en) | 2023-10-27 |
Family
ID=88464699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321296303.3U Active CN219910698U (en) | 2023-05-26 | 2023-05-26 | Plug for wellhead maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219910698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117379868A (en) * | 2023-12-12 | 2024-01-12 | 山西裕英永旭新材料有限责任公司 | Filter pressing tank |
-
2023
- 2023-05-26 CN CN202321296303.3U patent/CN219910698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117379868A (en) * | 2023-12-12 | 2024-01-12 | 山西裕英永旭新材料有限责任公司 | Filter pressing tank |
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| GR01 | Patent grant |