CN216307011U - Natural gas line interface sealing device - Google Patents
Natural gas line interface sealing device Download PDFInfo
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- CN216307011U CN216307011U CN202122876554.6U CN202122876554U CN216307011U CN 216307011 U CN216307011 U CN 216307011U CN 202122876554 U CN202122876554 U CN 202122876554U CN 216307011 U CN216307011 U CN 216307011U
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Abstract
The utility model discloses a natural gas pipeline interface sealing device which comprises a natural gas pipeline interface, a liquid sealing structure and a gas sealing structure, wherein the liquid sealing structure is arranged on the natural gas pipeline interface; be equipped with connection structure on the natural gas line interface, connection structure includes flange, flange and natural gas line interface integrated into one piece, its advantage is in: possess and seal the gas structure, use through the cooperation between sealing liquid structure and the gas structure, both can guarantee the device to the sealing performance of liquid material, can guarantee the device again to the sealing performance of gaseous state material, the existence of sealing liquid structure can effectively avoid sealing the loss of the sealing medium that the gas structure used simultaneously, thereby further guaranteed the device to the sealing performance of gaseous state material, effectively avoided traditional natural gas line to seal and adopted the sealed not good defect of effect of single sealed mode, and then effectively avoided revealing that the natural gas takes place at the natural gas line interface, improve the transport efficiency of natural gas, avoid the wasting of resources.
Description
Technical Field
The utility model relates to the technical field of natural gas transportation, in particular to a natural gas pipeline interface sealing device.
Background
The natural gas pipeline refers to a pipeline for conveying natural gas (including associated gas produced by an oil field) from a mining place or a processing plant to an urban gas distribution center or an industrial enterprise user, and is also called a gas transmission pipeline; the natural gas pipeline is used for conveying natural gas, and the method is a mode for conveying a large amount of natural gas on land, so that the connection and installation of the natural gas pipelines are particularly important, and the leakage between natural gas pipeline interfaces is avoided, so that corresponding sealing measures are frequently added at the natural gas pipeline interfaces, and the common sealing measures are that a sealing gasket structure is added at the pipeline interfaces to realize the sealing of the natural gas pipeline interfaces, however, the mode has certain defects in the using process, the single-layer sealing effect is poor, and the sealing effect of the sealing gasket on gas is poor, so that a natural gas pipeline interface sealing device is provided;
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solve the above problems and to provide a natural gas pipeline joint sealing device, which has the advantages of dual sealing, better sealing effect, and the like, and is described in detail below.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a natural gas pipeline interface sealing device which comprises a natural gas pipeline interface, a liquid sealing structure and a gas sealing structure;
the natural gas pipeline connector is provided with a connecting structure, the connecting structure comprises a connecting flange, the connecting flange and the natural gas pipeline connector are integrally formed, and the edge of the connecting flange is provided with uniformly distributed mounting holes for mounting bolts and nuts;
the liquid sealing structure and the connecting structure are installed in a matched mode, the liquid sealing structure comprises an outer sealing gasket and an inner sealing gasket, and the outer sealing gasket and the inner sealing gasket are both made of rubber materials;
the air sealing structure is positioned on the connecting structure.
Preferably, the connecting flange is provided with a first annular mounting groove corresponding to the outer sealing gasket, and the outer sealing gasket and the first annular mounting groove are installed in a matched mode, so that the installation of the outer sealing gasket is guaranteed, and the function of outer layer sealing liquid of the device is guaranteed.
Preferably, the thickness of the outer sealing gasket is larger than the depth of the first annular mounting groove, so that the sealing performance of the outer sealing liquid is guaranteed.
Preferably, the connecting flange is provided with a second annular mounting groove corresponding to the inner sealing gasket, the inner sealing gasket and the second annular mounting groove are installed in a matched mode, the installation of the inner sealing gasket is guaranteed, and the function of inner layer sealing liquid of the device is guaranteed.
Preferably, the thickness of the inner sealing gasket is larger than the depth of the second annular mounting groove, so that the sealing performance of the inner sealing liquid is guaranteed.
Preferably, the gas sealing structure comprises an annular oil duct, the upper end and the lower end of the annular oil duct are communicated with oil conveying pipelines, and valves are arranged on the oil conveying pipelines, so that normal oil feeding of the gas sealing structure is guaranteed, and a foundation is laid for gas sealing operation of the device.
Preferably, the annular oil duct is located between the first annular mounting groove and the second annular mounting groove, so that the inner layer and the outer layer of the annular oil duct can be sealed through a liquid sealing structure, and the loss of oil for gas sealing is reduced.
The utility model has the beneficial effects that:
possess and seal the gas structure, use through the cooperation between sealing liquid structure and the gas structure, both can guarantee the device to the sealing performance of liquid material, can guarantee the device again to the sealing performance of gaseous state material, the existence of sealing liquid structure can effectively avoid sealing the loss of the sealing medium that the gas structure used simultaneously, thereby further guaranteed the device to the sealing performance of gaseous state material, effectively avoided traditional natural gas line to seal and adopted the sealed not good defect of effect of single sealed mode, and then effectively avoided revealing that the natural gas takes place at the natural gas line interface, improve the transport efficiency of natural gas, avoid the wasting of resources.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic perspective view of FIG. 1 in accordance with the present invention;
fig. 3 is a schematic perspective sectional view of fig. 1 according to the present invention.
The reference numerals are explained below:
1. a natural gas pipeline interface; 2. a connecting structure; 2a, connecting flanges; 2b, mounting holes; 2c, a first annular mounting groove; 2d, a second annular mounting groove; 3. a liquid sealing structure; 3a, an outer sealing gasket; 3b, an inner sealing gasket; 4. a gas sealing structure; 4a, an annular oil duct; 4b, oil pipelines; 4c, a valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 3, the utility model provides a natural gas pipeline interface sealing device, which includes a natural gas pipeline interface 1, a liquid sealing structure 3 and a gas sealing structure 4; the natural gas pipeline connector 1 is provided with a connecting structure 2, the connecting structure 2 comprises a connecting flange 2a, the connecting flange 2a and the natural gas pipeline connector 1 are integrally formed, and the edge of the connecting flange 2a is provided with uniformly distributed mounting holes 2b for mounting bolts and nuts; the liquid sealing structure 3 is matched and installed with the connecting structure 2, the liquid sealing structure 3 comprises an outer sealing gasket 3a and an inner sealing gasket 3b, the outer sealing gasket 3a and the inner sealing gasket 3b are both made of rubber materials, a first annular installation groove 2c corresponding to the outer sealing gasket 3a is arranged on the connecting flange 2a, the outer sealing gasket 3a and the first annular installation groove 2c are matched and installed to ensure the installation of the outer sealing gasket 3a and ensure the outer liquid sealing function of the device, the thickness of the outer sealing gasket 3a is larger than the depth of the first annular installation groove 2c to ensure the sealing property of the outer liquid sealing, a second annular installation groove 2d corresponding to the inner sealing gasket 3b is arranged on the connecting flange 2a, the inner sealing gasket 3b and the second annular installation groove 2d are matched and installed to ensure the installation of the inner sealing gasket 3b and ensure the inner liquid sealing function of the device, the thickness of the inner sealing gasket 3b is larger than the depth of the second annular installation groove 2d, the sealing performance of the inner layer sealing liquid is ensured; seal gas structure 4 and be located connection structure 2, seal gas structure 4 includes annular oil duct 4a, annular oil duct 4a is located between first annular mounting groove 2c and the second annular mounting groove 2d, guarantee that liquid structure 3 can realize sealed the inlayer and the outer layer of annular oil duct 4a, reduce the loss of sealing gas oil, annular oil duct 4 a's upper and lower both ends all communicate has oil pipeline 4b, be equipped with valve 4c on the oil pipeline 4b, guarantee to seal gas structure 4's normal oil feed, establish the basis for the device's operation of sealing gas.
In an embodiment of the utility model, by adopting the natural gas pipeline joint sealing device with the structure, two adjacent natural gas pipeline joints 1 can be connected together by matching the external bolt and nut with the mounting hole 2b on the connecting flange 2a, before the two natural gas pipeline joints 1 are connected, the external sealing gasket 3a is matched with the first annular mounting groove 2c, the internal sealing gasket 3b is matched with the second annular mounting groove 2d, the external sealing gasket 3a and the internal sealing gasket 3b can be firstly mounted between the two natural gas pipeline joints 1, after the two natural gas pipeline joints 1 are connected, the external sealing gasket 3a and the internal sealing gasket 3b are matched for use, so that the sealing liquid sealing operation at the connection part of the two natural gas pipeline joints 1 is realized, then the valves 4c at the upper end and the lower end of the gas sealing structure 4 are respectively opened, and sealing oil is injected into the two natural gas pipeline joints 1 from the oil pipeline 4b at the lower end, until the oil pipeline 4b of upper end goes out oil, then seal lower extreme and upper end valve 4c in proper order, the inside full oil of annular oil duct 4a this moment, the part that lies in between first annular mounting groove 2c and the second annular mounting groove 2d between two natural gas line interfaces 1 forms the oil film, thereby realize the branch sealing gas seal operation between two natural gas line interfaces 1, and at this in-process, outer sealing gasket 3a and inner sealing gasket 3b can prevent effectively that the gas seal from leaking or the internal flow with sealed oil, thereby further guaranteed this natural gas line interface sealing device gas sealing performance.
It is worth noting that the natural gas pipeline joint 1 connected with the natural gas pipeline joint 1 is also provided with the corresponding connecting structure 2 and the corresponding gas sealing structure 4, so that the thickness of the outer sealing gasket 3a is larger than twice of the depth of the first annular mounting groove 2c, and the thickness of the inner sealing gasket 3b is larger than twice of the depth of the second annular mounting groove 2d, and therefore, the sealing performance of the outer sealing gasket 3a and the inner sealing gasket 3b can be guaranteed when two natural gas pipeline ports are connected.
The natural gas pipeline interface sealing device of this embodiment has following advantage:
possess and seal gas structure 4, use through the cooperation between seal liquid structure 3 and the seal gas structure 4, both can guarantee the device to the sealing performance of liquid material, can guarantee the device to the sealing performance of gaseous state material again, the existence of sealing liquid structure 3 can effectively avoid sealing the loss of the sealing medium that gas structure 4 used simultaneously, thereby further guaranteed the device to the sealing performance of gaseous state material, effectively avoided traditional natural gas line to seal the not good defect of single sealed mode of adoption, and then effectively avoided the natural gas to reveal at the natural gas line interface emergence, improve the transport efficiency of natural gas, avoid the wasting of resources.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a natural gas line interface sealing device which characterized in that: comprises a natural gas pipeline interface (1), a liquid sealing structure (3) and a gas sealing structure (4);
the natural gas pipeline connector (1) is provided with a connecting structure (2), the connecting structure (2) comprises a connecting flange (2a), the connecting flange (2a) and the natural gas pipeline connector (1) are integrally formed, and the edge of the connecting flange (2a) is provided with uniformly distributed mounting holes (2b) for mounting bolts and nuts;
the liquid sealing structure (3) and the connecting structure (2) are installed in a matched mode, the liquid sealing structure (3) comprises an outer sealing gasket (3a) and an inner sealing gasket (3b), and the outer sealing gasket (3a) and the inner sealing gasket (3b) are both made of rubber materials;
the air sealing structure (4) is positioned on the connecting structure (2).
2. The natural gas line interface sealing device of claim 1, wherein: the connecting flange (2a) is provided with a first annular mounting groove (2c) corresponding to the outer sealing gasket (3a), and the outer sealing gasket (3a) and the first annular mounting groove (2c) are installed in a matched mode.
3. The natural gas line interface sealing device of claim 1, wherein: the thickness of the outer seal gasket (3a) is greater than the depth of the first annular mounting groove (2 c).
4. The natural gas line interface sealing device of claim 1, wherein: and a second annular mounting groove (2d) corresponding to the inner sealing gasket (3b) is arranged on the connecting flange (2a), and the inner sealing gasket (3b) and the second annular mounting groove (2d) are installed in a matched mode.
5. The natural gas line interface sealing device of claim 1, wherein: the thickness of the inner sealing gasket (3b) is larger than the depth of the second annular mounting groove (2 d).
6. The natural gas line interface sealing device of claim 1, wherein: the gas sealing structure (4) comprises an annular oil duct (4a), the upper end and the lower end of the annular oil duct (4a) are communicated with an oil conveying pipeline (4b), and a valve (4c) is arranged on the oil conveying pipeline (4 b).
7. The natural gas line interface sealing device of claim 6, wherein: the annular oil passage (4a) is located between the first annular mounting groove (2c) and the second annular mounting groove (2 d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122876554.6U CN216307011U (en) | 2021-11-19 | 2021-11-19 | Natural gas line interface sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122876554.6U CN216307011U (en) | 2021-11-19 | 2021-11-19 | Natural gas line interface sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216307011U true CN216307011U (en) | 2022-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122876554.6U Active CN216307011U (en) | 2021-11-19 | 2021-11-19 | Natural gas line interface sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216307011U (en) |
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2021
- 2021-11-19 CN CN202122876554.6U patent/CN216307011U/en active Active
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