CN215806937U - Pipeline connecting structure - Google Patents
Pipeline connecting structure Download PDFInfo
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- CN215806937U CN215806937U CN202121847910.5U CN202121847910U CN215806937U CN 215806937 U CN215806937 U CN 215806937U CN 202121847910 U CN202121847910 U CN 202121847910U CN 215806937 U CN215806937 U CN 215806937U
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Abstract
The present invention provides a pipe connection structure, including: the outer wall surface of the first pipeline body is sleeved with a first coupling, and a first end of the first pipeline body extends out of the first coupling; the outer wall surface of the second pipeline body is sleeved with a second coupling, the first end of the second coupling is connected with the first end of the second pipeline body, and the second end of the second coupling extends out of the first end of the second pipeline body; the extension part of the first pipeline body is inserted into the second coupling, so that the first end of the second pipeline body is coaxially butted with the first end of the first pipeline body, and the first coupling is coaxially butted with the second coupling; and a sealing element is arranged between the first pipeline body and the second pipeline body. This embodiment is through setting up the sealing member between first pipeline body and second pipeline body, can prevent that the inside oil gas of pipeline from outwards oozing through the butt joint department of first pipeline body and second pipeline body, strengthens sealed effect, avoids oil, gas to reveal.
Description
Technical Field
The utility model relates to the technical field of oil and gas transmission pipelines, in particular to a pipeline connecting structure.
Background
In the field of petrochemical industry, pipelines are often required to convey various media, and in order to prevent and delay corrosion of the pipelines by the conveyed media, prolong the service life of the pipelines and reduce transmission wear and resistance, the inner walls of the pipelines are generally provided with anticorrosive coatings.
To long pipeline, need many pipeline end to end welding, the pipeline can destroy anticorrosive coating in the pipeline when the welding, for the emergence of avoiding this condition, sets up the coupling in the pipeline outside usually among the prior art, carries out coaxial seal butt joint to adjacent pipeline end to end in the inside of coupling, but oil, gas easily flow into between pipeline and the coupling through adjacent pipeline butt joint department, have sealed effect not good, the problem of oil, gas leakage appears.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pipeline connecting structure, which is used for solving the problems that when end-to-end coaxial sealing butt joint is carried out on adjacent pipelines in a coupling in the prior art, oil and gas easily flow into the space between the pipelines and the coupling through the butt joint part of the adjacent pipelines, the sealing effect is poor, and the oil and gas are leaked.
The present invention provides a pipe connection structure, including: the outer wall surface of the first pipeline body is sleeved with a first coupling, and a first end of the first pipeline body extends out of the first coupling; the outer wall surface of the second pipeline body is sleeved with a second coupling, the first end of the second coupling is connected with the first end of the second pipeline body, and the second end of the second coupling extends out of the first end of the second pipeline body; the extension part of the first pipeline body is inserted into the second coupling, so that the first end of the second pipeline body is coaxially butted with the first end of the first pipeline body, and the first coupling is coaxially butted with the second coupling; and a sealing element is arranged between the first pipeline body and the second pipeline body.
According to the pipeline connecting structure provided by the utility model, the first end of the first coupling is connected with the first pipeline body, and a first annular space is formed between the second end of the first coupling and the first pipeline body; when the first pipeline body is inserted into the second coupling and is in butt joint with the first end of the second pipeline body, a second annular space is formed between the second end of the second coupling and the first pipeline body.
According to the pipeline connecting structure provided by the utility model, the thickness of the first coupling is uniform from the first end to the second end, and the first end and the second end of the first coupling are in smooth transition connection; the second coupling is uniform in thickness from the first end to the second end, and the first end and the second end of the second coupling are in smooth transition connection.
According to the pipeline connecting structure provided by the utility model, when the extension part of the first pipeline body is inserted into the second coupling and is coaxially butted with the first end of the second pipeline body, a gap exists between the second end of the first coupling and the second end of the second coupling, and a welding seam is constructed at the gap.
According to the pipeline connecting structure provided by the utility model, the second end of the first coupling is provided with the first chamfer, the second end of the second coupling is provided with the second chamfer, and the first chamfer and the second chamfer are oppositely arranged.
According to the pipeline connecting structure provided by the utility model, the first end of the second coupling is provided with the flat attaching section, and the part, close to the first end of the second coupling, of the flat attaching section is in fit contact with the outer wall surface of the second pipeline body; when the extension part of the first pipeline body is inserted into the second coupling, and the first end of the second pipeline body is coaxially butted with the first end of the first pipeline body, the part of the flat pasting section, which is close to the second end of the second coupling, is in contact with the outer wall surface of the first pipeline body in a pasting manner.
According to the pipeline connecting structure provided by the utility model, the sealing element is arranged between the first pipeline body and the second pipeline body in an extruding way; the sealing element is connected to the first end of the first pipe body, the first end of the second pipe body or the inner wall of the second coupling corresponding to the first end of the second pipe body.
According to the pipeline connecting structure provided by the utility model, the first end of the second pipeline body is provided with the third chamfer, and the sealing element is arranged at the third chamfer.
According to the pipeline connecting structure provided by the utility model, a sealing element is also arranged between the outer wall surface of the first end of the first pipeline body and/or the outer wall surface of the first end of the second pipeline body and the second coupling.
According to the pipe connection structure provided by the utility model, the length of the first annular space and the length of the second annular space are both larger than or equal to 70 mm.
According to the pipeline connecting structure provided by the utility model, the first coupling and the second coupling are correspondingly sleeved on the outer wall surface of the first pipeline body and the outer wall surface of the second pipeline body, the first end of the first pipeline body extends out of the first coupling for a certain distance, the second coupling extends out of the first end of the second pipeline body for a certain distance, and the first pipeline body is butted with the second pipeline body when the extending part of the first pipeline body is completely inserted into the second coupling; through set up the sealing member between first pipeline body and second pipeline body, can prevent that the inside oil gas of pipeline from outwards oozing through the butt joint department of first pipeline body and second pipeline body, this kind of seal structure is simple, strengthens sealed effect, avoids oil, gas to reveal.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a pipe connection structure provided by the present invention;
FIG. 2 is a schematic structural view of a first pipe body and a first collar provided in the present invention;
FIG. 3 is a schematic structural view of a second pipe body and a second collar provided in the present invention;
reference numerals:
1: a first pipe body; 2: a first collar; 3: a second pipe body;
4: a second coupling; 5: a seal member; 6: a first annular space;
7: a second annular space; 8: a first chamfer; 9: a second chamfer;
10: and (7) third chamfering.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A pipe connecting structure of the present invention will be described below with reference to fig. 1 to 3.
Referring to fig. 1, the present embodiment provides a pipe connecting structure including: the pipeline comprises a first pipeline body 1, wherein a first coupling 2 is sleeved on the outer wall surface of the first pipeline body 1, and a first end of the first pipeline body 1 extends out of the first coupling 2; the outer wall surface of the second pipeline body 3 is sleeved with a second coupling 4, a first end of the second coupling 4 is connected with a first end of the second pipeline body 3, and a second end of the second coupling 4 extends out of the first end of the second pipeline body 3; the extension part of the first pipeline body 1 is inserted into the second coupling 4, so that the first end of the second pipeline body 3 is coaxially butted with the first end of the first pipeline body 1, and the first coupling 2 is coaxially butted with the second coupling 4; and a sealing piece 5 is arranged between the first pipeline body 1 and the second pipeline body 3.
The pipeline connecting structure provided by the embodiment comprises a first pipeline body 1, a first coupling 2, a second pipeline body 3, a second coupling 4 and a sealing element 5, wherein a long conveying pipeline is formed by connecting the first pipeline body 1 and the second pipeline body 3, specifically, the outer wall surface of the first pipeline body 1 is welded with the first coupling 2, a certain distance exists between the first end of the first pipeline body 1 and the first coupling 2, namely the first coupling 2 is welded on the outer wall surface of the first pipeline body 1, and a distance exists between one end, close to the first end of the first pipeline body, of the first coupling 2 and the first end of the first pipeline body 1, as shown in fig. 2; a second coupling 4 is sleeved on the outer wall surface of the second pipeline body 3, wherein a first end of the second coupling 4 is welded on the outer wall surface of the first end of the second pipeline body 3, and a second end of the second coupling 4 extends out of the first end of the second pipeline body 3 for a certain distance, as shown in fig. 3; wherein the length that the second end of second coupling 4 stretches out the first end of second pipeline body 3 matches with the length of the first end of first pipeline body 1 apart from the one end that first coupling 2 is close to first pipeline body first end.
The extension part of the first pipeline body 1 is inserted into the second coupling 4, when the extension part of the first pipeline is completely arranged in the second coupling 4, the first end of the first pipeline body 1 is in coaxial butt joint with the first end of the second pipeline body 3, the first coupling 2 and the second coupling 4 can be in coaxial butt joint, and the structure is simple and facilitates field operation. Further, be equipped with sealing member 5 between the first end of first pipeline body 1 and the first end of second pipeline body 3, can prevent that inside oil of pipeline, gas from oozing outward through the butt joint department of first pipeline body 1 and second pipeline body 3 and flowing between pipeline body and coupling, increase sealed effect, avoid oil gas to reveal.
In the embodiment, the first coupling 2 and the second coupling 4 are correspondingly sleeved on the outer wall surface of the first pipeline body 1 and the outer wall surface of the second pipeline body 3, the first end of the first pipeline body 1 extends out of the first coupling 2 for a certain distance, the second coupling 4 extends out of the first end of the second pipeline body 3 for a certain distance, and the extended part of the first pipeline body 1 is butted with the second pipeline body 3 when being completely inserted into the second coupling 4, so that the structure is simple, the field operation is simplified, and the splicing and butt joint between the pipelines are convenient; through set up sealing member 5 between first pipeline body 1 and second pipeline body 3, can prevent that the inside oil of pipeline, gas from outwards oozing through the butt joint department of first pipeline body 1 with second pipeline body 3, and the butt joint department of first coupling 2 and second coupling 4 and the crisscross setting of butt joint department of first pipeline body 1 and second pipeline body 3, be favorable to further improving sealed effect, this kind of seal structure is simple, strengthen sealed effect, avoid oil, gas is revealed.
On the basis of the above embodiment, in the present embodiment, the first end of the first coupling 2 is connected with the first pipe body 1, and a first annular space 6 is formed between the second end of the first coupling 2 and the first pipe body 1; when the first pipeline body 1 is inserted into the second coupling 4 and is butted with the first end of the second pipeline body 3, a second annular space 7 is formed between the second end of the second coupling 4 and the first pipeline body 1.
Referring to fig. 2, a first coupling 2 is sleeved on an outer wall surface of a first pipeline body 1, wherein a first end of the first coupling 2 is welded to the first pipeline body 1, a second end of the first coupling 2 is bent outward relative to the first end of the first coupling 2, so that a first annular space 6 is formed between the second end of the first coupling 2 and the first pipeline body 1, and a gap is formed between the second end of the first coupling 2 and the first end of the first pipeline body 1; the first end of the second coupling 4 is welded on the outer wall surface of the first end of the second pipeline body 3, the second end of the second coupling 4 is bent outwards relative to the second end of the second coupling 4, when the extension portion of the first pipeline body 1 is inserted into the second coupling 4 and is in butt joint with the first end of the second pipeline body 3, the second end of the first coupling 2 is in butt joint with the second end of the second coupling 4, and a second annular space 7 is formed between the second end of the second pipeline body 3 and the first end of the first pipeline body 1.
This embodiment is through stretching out first pipeline body 1 first coupling 2 distance, and second coupling 4 stretches out one distance of second pipeline body 3, and then keeps away from the butt joint department of first coupling 2 and second coupling 4 when making first pipeline body 1 dock with second pipeline body 3, causes the influence to the butt joint department of first pipeline body 1 and second pipeline body 3 when avoiding first coupling 2 and second coupling 4 to weld, avoids oil, gas in the pipeline to appear leaking.
This embodiment is through outwards buckling the second end of first coupling 2 for first end, form first annular space 6 with first pipeline body 1, the second end of second coupling 4 outwards buckles for first end, dock with the first end of second pipeline body 3 when first pipeline body 1 is planted second coupling 4, first coupling 2 and second coupling 4 dock, second coupling 4 forms second annular space 7 with first pipeline body 1, there is annular space between the junction of first coupling 2 and second coupling 4 and first pipeline body 1 promptly, influence the inside coating of first pipeline body 1 when can avoiding first coupling 2 and second coupling 4 to weld.
On the basis of the above embodiment, referring to fig. 2 and 3, the thickness of the first collar 2 in the embodiment is uniform from the first end to the second end, and the first end and the second end of the first collar 2 are in smooth transition connection; the thickness of the second coupling 4 is uniform from the first end to the second end, and the first end and the second end of the second coupling 2 are in smooth transition connection. The first coupling 2 and the second coupling 4 provided by the embodiment have uniform thickness, and the coupling forming process with the structure is simple and low in cost.
Further, when the extension of the first pipe body 1 is inserted into the second coupling 4 and coaxially butted against the first end of the second pipe body 3, a gap exists between the second end of the first coupling 2 and the second end of the second coupling 4, and a welding seam is constructed at the gap.
Specifically, referring to fig. 1, the protrusion of the first pipe body 1 is inserted into the second coupling 4, when the protrusion of the first pipe body 1 is completely inserted into the second coupling 4, the first end of the first pipe body 1 is butted with the first end of the second pipe body 3, further, there is a gap between the second end of the first coupling 2 and the second end of the second coupling 4 and no contact, and a weld is formed at the gap, that is, the second end of the first coupling 2 and the second end of the second coupling 4 are connected together by welding, and there is a gap between the second end of the first coupling 2 and the second end of the second coupling 4 to facilitate welding, so as to avoid the influence on the first coupling 2 and the second coupling 4 during welding, and further enhance sealing.
This embodiment is unanimous through the whole thickness with first coupling 2, and the whole thickness of second coupling 4 is unanimous, because of the not enough fracture of intensity when avoiding the welding, helps realizing the connection of first coupling 2 and second coupling 4 through the welding.
Further, in this embodiment, the second end of the first coupling 2 is provided with a first chamfer 8, the second end of the second coupling 4 is provided with a second chamfer 9, and the first chamfer 8 and the second chamfer 9 are oppositely arranged.
Referring to fig. 2, a second end of the first coupling 2 is provided with a first chamfer 8; referring to fig. 3, the second end of the second collar 4 is provided with a second chamfer 9; further, first chamfer 8 and second chamfer 9 set up relatively, and in first pipeline body 1 inserted second coupling 4, when the first end of first pipeline body 1 and the first end butt joint of second pipeline body 3, there is the clearance between the second end of first coupling 2 and the second end of second coupling 4, and first chamfer 8 of first coupling 2 and the second chamfer 9 of second coupling 4 form the space cross-section of leaking hopper-shaped, help connecting first coupling 2 and second coupling 4 through the welding.
Further, the first end of the second coupling 4 that this embodiment provided has the flat section of pasting, and the position that the flat section of pasting is close to the first end of second coupling 4 and the outer wall laminating contact of second pipeline body 3, in the second coupling 4 is planted to the extension of first pipeline body 1, when the first end of second pipeline body 3 and the coaxial butt joint of first end of first pipeline body 1, the position that the flat section of pasting is close to the second end of second coupling 4 and the outer wall laminating contact of first pipeline body 1.
Referring to fig. 3, the first end and the second end of the second coupling 4 are connected through a smooth transition, the first end of the second coupling 4 has a flat section, specifically, the first end of the second coupling 4 is welded to the outer wall surface of the second pipe body 3, and a portion close to the first end of the second coupling 4 is in contact with the outer wall surface of the second pipe body 3, that is, the inner wall surface of the first end of the second coupling 4 is in contact with the outer wall surface of the second pipe body 3; and the flat patch portion extends beyond the first end of the second pipe body 3. When the extension part of the first pipeline body 1 is inserted into the second coupling 4 and is in butt joint with the first end of the second pipeline body 3, the flat pasting section close to the second end of the second coupling 4 is in pasting contact with the outer wall surface of the first pipeline body 1, namely, the inner wall surface of the flat pasting section is pasted with the outer wall surface of the first pipeline body 1.
This embodiment sets up flat section through the first end at second coupling 4, and the flat section of the first end of second coupling 4 is arranged in to the butt joint department of first pipeline body 1 and second pipeline body 3, can avoid oil, gas in the pipeline to ooze through first pipeline body 1 and second pipeline body 3 butt joint department and flow into first annular space 6 and second annular space 7, increase sealed effect.
On the basis of the above embodiment, the sealing member 5 is disposed between the first pipe body 1 and the second pipe body 3 in an extruding manner, and the sealing member 5 is connected to the first end of the first pipe body 1, the first end of the second pipe body 3, or the inner wall of the second collar 4 corresponding to the first end of the second pipe body 3.
In the embodiment, the sealing member 5 is arranged between the first pipeline body 1 and the second pipeline body 3, and when the extension part of the first pipeline body 1 is inserted into the second coupling 4 and is butted with the first end of the second pipeline body 3, the sealing member 5 can be squeezed between the first end of the first pipeline body 1 and the first end of the second pipeline body 3. Specifically, the sealing element 5 may be connected to the first end of the first pipe body 1, or may be connected to the first end of the second pipe body 3, or the inner wall of the second coupling 4 and the first end of the second pipe body 3 correspond to each other, so that the sealing element 5 is squeezed between the first pipe body 1 and the first pipe body 1 when the extension of the first pipe body 1 is inserted into the second coupling 4, thereby increasing the sealing effect.
In a preferred embodiment the first end of the second pipe body 3 is provided with a third chamfer 10 and the seal 5 is provided at the third chamfer 10. Specifically, referring to fig. 3, the third chamfer 10 is inclined outward from the first end of the second pipe body 3 to the first end of the second collar 4, so that a groove-shaped gap is formed between the second pipe body 3 and the second collar 4, and the sealing member is connected and disposed in the gap, thereby enhancing the sealing effect at the butt joint of the first pipe body 1 and the second pipe body 3.
In this embodiment, the sealing member 5 comprises a sealing ring or a sealant or a sealing material. The present embodiment does not specifically limit the sealing member 5, and sealing between the first pipe body 1 and the second pipe body 3 may be achieved.
In addition to the above embodiments, in this embodiment, a sealing member 5 is also provided between the outer wall surface of the first end of the first pipe body 1 and/or the outer wall surface of the first end of the second pipe body 3 and the second coupling 4. I.e. a seal 5 may additionally be provided between the flat section of the first end of the second collar 4 and the outer wall surface of the first pipe body 1 and/or the outer wall surface of the second pipe body 3.
In one embodiment, a sealing element 5 is arranged between the outer wall surface of the first end of the first pipeline body 1 and the second coupling 4, namely the sealing element 5 is arranged between the outer wall surface of the first end of the first pipeline body 1 and a flat section close to the second end of the second coupling 4, so that oil and gas in the pipeline are prevented from seeping out and flowing into the first annular space 6 and the second annular space 7 through the joint of the first pipeline body 1 and the second pipeline body 3, and sealing is enhanced.
In another embodiment, a sealing member 5 is arranged between the outer wall surface of the first end of the second pipeline body 3 and the second coupling 4, that is, the sealing member 5 is arranged between the outer wall surface of the first end of the second pipeline body 3 and the flat section close to the first end of the second coupling 4, so that oil and gas in the pipeline are prevented from seeping out from the welding position of the first end of the second coupling 4 and the outer wall surface of the second pipeline body 3 through the butt joint of the first pipeline body 1 and the second pipeline body 3, and the sealing is further enhanced.
In this embodiment, the setting position of the sealing member 5 is not specifically limited, so that the oil gas in the pipeline can be prevented from leaking outwards through the joint of the first pipeline and the second pipeline, and the sealing is enhanced.
Further, the present embodiment provides that the length of the first annular space 6 and the length of the second annular space 7 are both greater than or equal to 70mm, wherein the length direction of the first annular space 6 is the axial direction of the first pipe body 1, and the length direction of the second annular space 7 is the axial direction of the second pipe body 3.
In one embodiment, after the extension portion of the first pipe body 1 is inserted into the second coupling 4, and the first end of the second pipe body 3 is coaxially butted with the first end of the first pipe body 1, the second end of the first coupling 2 and the second end of the second coupling 4 are welded, the length of the first annular space 6 is greater than or equal to 70mm, and heat generated in the welding process can be prevented from being transferred to the first end of the first coupling 2 through the second end of the first coupling 2, so that the coating inside the first pipe body 1 is prevented from being influenced; simultaneously, the length also more than or equal to 70mm of second annular space, the flat section of second coupling 4 is close to the one end of second coupling 4 second end and the distance more than or equal to 70mm between the second end of second coupling 4 promptly, can avoid the heat in the welding process to transmit to the first end of second coupling 4 through the second end of second coupling 4, and then influence the inside coating of the first end of first pipeline body 1 and the inside coating of the first end of second pipeline body 3, also can prevent that the welding from influencing the butt joint of first pipeline body 1 and second pipeline body 3, strengthen sealedly, reduce the risk that oil gas reveals in the pipeline.
In this embodiment, the lengths of the first annular space 6 and the second annular space 7 are not specifically limited, and the length of the first annular space 6 and the length of the second annular space 7 may be equal or unequal, so as to ensure that the coating inside the first pipe body 1 and the second pipe body 3 and the butt joint of the first pipe body 1 and the second pipe body 3 are not affected when the first coupling 2 and the second coupling 4 are welded.
Compared with taper sealing in the prior art, the embodiment of the utility model adopts the contact extrusion sealing with the O-shaped sealing ring structure, has simple sealing structure, enhances the sealing effect and has lower cost.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A pipe connecting structure, comprising:
the outer wall surface of the first pipeline body is sleeved with a first coupling, and a first end of the first pipeline body extends out of the first coupling;
the outer wall surface of the second pipeline body is sleeved with a second coupling, the first end of the second coupling is connected with the first end of the second pipeline body, and the second end of the second coupling extends out of the first end of the second pipeline body;
the extension part of the first pipeline body is inserted into the second coupling, so that the first end of the second pipeline body is coaxially butted with the first end of the first pipeline body, and the first coupling is coaxially butted with the second coupling;
and a sealing element is arranged between the first pipeline body and the second pipeline body.
2. The pipe connection according to claim 1, wherein a first end of the first collar is connected to the first pipe body, and a second end of the first collar and the first pipe body form a first annular space therebetween; when the first pipeline body is inserted into the second coupling and is in butt joint with the first end of the second pipeline body, a second annular space is formed between the second end of the second coupling and the first pipeline body.
3. The pipe connection according to claim 2, wherein the first collar is of uniform thickness from the first end to the second end, and the first end and the second end of the first collar are joined in smooth transition; the second coupling is uniform in thickness from the first end to the second end, and the first end and the second end of the second coupling are in smooth transition connection.
4. The pipe connection according to claim 2, wherein when the protrusion of the first pipe body is inserted into the second coupling to be coaxially butted against the first end of the second pipe body, a gap is formed between the second end of the first coupling and the second end of the second coupling, and a weld is formed at the gap.
5. The pipe connection structure according to claim 2, wherein the second end of the first collar is provided with a first chamfer, and the second end of the second collar is provided with a second chamfer, the first chamfer and the second chamfer being disposed opposite to each other.
6. The pipe connection according to claim 2, wherein the first end of the second collar has a flat flight, and a portion of the flat flight near the first end of the second collar is in abutting contact with an outer wall surface of the second pipe body; when the extension part of the first pipeline body is inserted into the second coupling, and the first end of the second pipeline body is coaxially butted with the first end of the first pipeline body, the part of the flat pasting section, which is close to the second end of the second coupling, is in contact with the outer wall surface of the first pipeline body in a pasting manner.
7. The pipe connecting structure according to claim 1, wherein the seal member is interposed between the first pipe body and the second pipe body; the sealing element is connected to the first end of the first pipe body, the first end of the second pipe body or the inner wall of the second coupling corresponding to the first end of the second pipe body.
8. A pipe connection according to any one of claims 1 to 7, wherein the first end of the second pipe body is provided with a third chamfer and the seal is provided at the third chamfer.
9. The pipe connection according to claim 7, wherein a sealing member is also provided between the outer wall surface of the first end of the first pipe body and/or the outer wall surface of the first end of the second pipe body and the second collar.
10. The pipe connecting structure according to any one of claims 2 to 6, wherein the length of the first annular space and the length of the second annular space are each equal to or greater than 70 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121847910.5U CN215806937U (en) | 2021-08-09 | 2021-08-09 | Pipeline connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121847910.5U CN215806937U (en) | 2021-08-09 | 2021-08-09 | Pipeline connecting structure |
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| CN215806937U true CN215806937U (en) | 2022-02-11 |
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| CN202121847910.5U Active CN215806937U (en) | 2021-08-09 | 2021-08-09 | Pipeline connecting structure |
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| CN (1) | CN215806937U (en) |
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2021
- 2021-08-09 CN CN202121847910.5U patent/CN215806937U/en active Active
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