CN212929089U - Long defeated natural gas line quick connecting device - Google Patents
Long defeated natural gas line quick connecting device Download PDFInfo
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- CN212929089U CN212929089U CN202020272082.6U CN202020272082U CN212929089U CN 212929089 U CN212929089 U CN 212929089U CN 202020272082 U CN202020272082 U CN 202020272082U CN 212929089 U CN212929089 U CN 212929089U
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- male flange
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Abstract
An object of the utility model is to provide a long defeated natural gas line quick connecting device belongs to natural gas line technical field. The male flange is inserted into the female flange matched with the male flange, and the male flange and the female flange are connected in a sealing and detachable mode. The utility model discloses a sealed the dismantling of male flange between and the female flange is connected, does not need auxiliary work to realize the high-speed joint, has saved the site operation time, has solved the manpower that current welded connection exists and the great and longer technical problem of construction cycle of time cost, adaptable in unable scene of being on fire or not possessing the welding condition, simple structure, convenient operation.
Description
Technical Field
The utility model relates to a natural gas line technical field, in particular to long defeated natural gas line quick connecting 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 a city 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 is a way for conveying a large amount of natural gas on land. Natural gas pipelines account for about half of the total pipeline length in the world.
Traditional natural gas pipeline connections rely on welding. The construction method is influenced by the field environment and the operation conditions, has certain limitation, needs a large amount of auxiliary work, consumes large labor cost and time cost, and has a long construction period.
Disclosure of Invention
An object of the utility model is to provide a long defeated natural gas line quick connecting device, it is connected through sealed dismantling between public flange and the female flange, does not need auxiliary work to realize the high-speed joint promptly, has solved the manpower that current welded connection exists and the time cost is great and the longer technical problem of construction cycle.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a long defeated natural gas line quick connecting device, includes male flange and female flange, the male flange is inserted and is located rather than inside the female flange of looks adaptation, male flange and female flange seal detachable connection.
As an improvement of the utility model, the male flange includes the connecting portion of coaxial setting and with connecting portion integrated into one piece's grafting portion, the surface of grafting portion is a conical surface.
As an improvement of the utility model, the male flange and the female flange are of a ring sleeve type structure, and the inner part of the female flange is provided with an inner conical surface matched with the outer surface.
As an improvement of the utility model, the inner conical surface is coated with the leakage-proof glue.
As an improvement of the utility model, the lateral part of connecting portion has been seted up the pipeline and has been inlayed the cover hole.
As an improvement of the utility model, there is at least three first connect the through-hole along circumferencial direction evenly distributed on the male flange, and it has the second connect the through-hole corresponding with first connect the through-hole position to distribute on the female flange, and male flange and female flange pass through connecting bolt subassembly fixed connection.
The utility model has the advantages that: the utility model discloses a sealed the dismantling of male flange between and the female flange is connected, does not need auxiliary work to realize the high-speed joint, has saved the site operation time, has solved the manpower that current welded connection exists and the great and longer technical problem of construction cycle of time cost, adaptable in unable scene of being on fire or not possessing the welding condition, simple structure, convenient operation.
The male flange and the female flange are both in a ring-sleeve structure, the outer surface of the male flange inserting part is an outer conical surface, and an inner conical surface matched with the outer conical surface is arranged inside the female flange, so that the thickness of the part where the male flange and the female flange are inserted into each other is the sum of the wall thicknesses of the male flange inserting part and the female flange, the structure is stable, and the compressive strength is high; in addition, the male flange and the female flange are connected in a mutually-inserted connection mode, so that the connection is fast, and the construction efficiency is improved.
The lateral part of the male flange connecting part is provided with a pipeline nesting hole, so that the end part of the air inlet pipeline is embedded into the pipeline nesting hole, the air inlet pipeline is axially and radially limited, the structure is firm, and the overall safety of the device is improved.
The male flange and the female flange are fixedly connected through a connecting bolt assembly. When the male flange is butted with the female flange through a bolt connection mode, the first connecting through hole and the second connecting through hole are aligned with each other.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of a male flange of the present invention;
fig. 3 is a schematic structural view of the female flange of the present invention.
In the figure: 1. an air intake duct; 2. a male flange; 3. a female flange; 4. a connecting bolt assembly; 5. an air outlet pipe; 6. a gap; 21. a connecting portion; 211. a first connecting through hole; 212. a pipe nesting hole; 22. a plug-in part; 221. an outer surface; 222. a right end face; 23. a joint portion; 31. a second connecting through hole; 32. a circular arc surface; 33. welding a groove; 34. an inner conical surface; 35. a step end face.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
As shown in fig. 1, fig. 2 and fig. 3, the quick connection device for the long-distance natural gas pipeline comprises a male flange 2 and a female flange 3, wherein the male flange 2 is inserted into the female flange 3 matched with the male flange, and the male flange 2 and the female flange 3 are in sealed detachable connection. The male flange 2 comprises a connecting part 21 and an inserting part 22, wherein the connecting part 21 and the inserting part 22 are coaxially arranged, and the outer surface 221 of the inserting part 22 is a conical surface; the male flange 2 and the female flange 3 are both in a ring sleeve type structure, and the female flange 3 is internally provided with an inner conical surface 34 matched with the outer surface 221 of the male flange 2, namely, the conicity of the outer surface 221 and the inner conical surface 34 is equal.
The outer surface 221 or the inner conical surface 34 of the male flange 2 is coated with an anti-leakage glue for sealing. The side (left side in fig. 2) of the connecting portion 21 away from the outer surface 221 is provided with a pipe fitting hole 212, and a stepped through hole communicated with the through hole on the right side is formed together with the through hole on the right side, and the inner diameter of the pipe fitting hole 212 is larger than the diameter of the through hole on the right side. One end of the air inlet pipeline 1 is embedded into the pipeline embedding hole 212, and then the external intersection of the air inlet pipeline 1 and the connecting part 21 is welded, so that the air inlet pipeline 1 and the male flange 2 are fixedly connected together.
The inner conical surface 34 inside the female flange 3 is a conical hole for inserting the insertion part 22, and a stepped through hole communicated with the through hole on the right side is formed together with the through hole on the right side. The connecting portion of the female flange 3 and the outer surface of the right end of the female flange 3 are preferably designed to be connected in an arc manner, that is, the left end surface of the large-diameter cylinder on the left side of the female flange 3 and the outer surface of the small-diameter cylinder on the right side are in transitional connection through the arc surface 32, so that the structure is firm, and the appearance is attractive. The right end of female flange 3 is equipped with welding groove 33, and female flange 3 carries out welded connection through welding groove 33 and outlet duct 5.
At least three first connecting through holes 211 are uniformly distributed on the connecting part 21 of the male flange 2 along the circumferential direction, and preferably 3, 4 and 5; second connecting through holes 21 are uniformly distributed on the female flange 3 corresponding to the positions of the first connecting through holes 211 along the circumferential direction, and the number and the size of the first connecting through holes 211 are equal to those of the second connecting through holes 21; the male flange and the female flange are fixedly connected with the second connecting through hole 21 through the connecting bolt assembly 4 via the first connecting through hole 211, wherein the connecting bolt assembly 4 is an existing product and mainly comprises a bolt, a nut and a washer. A gap 6 is reserved between the right end face 222 of the inserting part 22 and the stepped end face 35 at the bottom of the inner conical surface 34 of the female flange 3, the outer conical surface of the inserting part 22 can be completely attached to the inner conical surface 34 of the female flange 3 through the gap 6, and the connection sealing performance between the male flange 2 and the female flange 3 is ensured.
The utility model discloses a theory of operation does: firstly, one end of the air inlet pipeline 1 is embedded into the pipeline embedding hole 212 matched with the air inlet pipeline, and then the air inlet pipeline 1 is connected with the male flange 2 in a welding mode. Secondly, welding the female flange 3 with one end of the air outlet pipeline 5 through a welding groove 33; it should be noted that the other end of the gas inlet pipeline 1 is welded with a female flange 3, the other end of the gas outlet pipeline 5 is welded with a male flange 2, that is, both ends of each pipeline are respectively welded with a male flange 2 and a female flange 3; transporting the pipeline with the male flange 2 and the female flange 3 respectively welded at the two ends to a construction site again, and smearing leakage-proof glue with a sealing function on the outer surface 221 or the inner conical surface 34 of the male flange 2; and finally, inserting the male flange 2 into the female flange 3, and then performing detachable sealing connection on the male flange 2 and the female flange 3 through the connecting bolt assembly 4 to finally finish the installation work of the natural gas pipeline.
This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (1)
1. The utility model provides a long defeated natural gas line quick connect device which characterized in that: the sealing structure comprises a male flange (2) and a female flange (3), wherein the male flange (2) is inserted into the female flange (3) matched with the male flange, and the male flange (2) is detachably connected with the female flange (3) in a sealing manner;
the male flange (2) comprises a connecting part (21) and an inserting part (22), wherein the connecting part (21) is coaxially arranged, the inserting part (22) is integrally formed with the connecting part (21), and the outer surface (221) of the inserting part (22) is a conical surface;
the male flange (2) and the female flange (3) are both in a ring-sleeve structure, and an inner conical surface (34) matched with the outer surface (221) is arranged inside the female flange (3);
the inner conical surface (34) is coated with leak-proof glue;
a pipeline embedding hole (212) is formed in the side part of the connecting part (21);
at least three first connecting through holes (211) are uniformly distributed on the male flange (2) along the circumferential direction, second connecting through holes (31) corresponding to the first connecting through holes (211) in position are distributed on the female flange (3), and the male flange (2) and the female flange (3) are fixedly connected through a connecting bolt assembly (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020272082.6U CN212929089U (en) | 2020-03-09 | 2020-03-09 | Long defeated natural gas line quick connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020272082.6U CN212929089U (en) | 2020-03-09 | 2020-03-09 | Long defeated natural gas line quick connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212929089U true CN212929089U (en) | 2021-04-09 |
Family
ID=75295892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020272082.6U Active CN212929089U (en) | 2020-03-09 | 2020-03-09 | Long defeated natural gas line quick connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212929089U (en) |
-
2020
- 2020-03-09 CN CN202020272082.6U patent/CN212929089U/en active Active
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