CN220566754U - Spiral bimetal welded pipe - Google Patents
Spiral bimetal welded pipe Download PDFInfo
- Publication number
- CN220566754U CN220566754U CN202321950931.9U CN202321950931U CN220566754U CN 220566754 U CN220566754 U CN 220566754U CN 202321950931 U CN202321950931 U CN 202321950931U CN 220566754 U CN220566754 U CN 220566754U
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- CN
- China
- Prior art keywords
- pipe body
- wall
- groove
- corrosion
- pipe
- Prior art date
- 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
- 238000005260 corrosion Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 9
- 238000005336 cracking Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a spiral bimetal welded pipe which comprises a pipe body, wherein an anti-corrosion mechanism is arranged in the pipe body, one side of the pipe body is provided with an inserting head, the extending end of the inserting head is provided with an annular sealing groove, the other side of the inner wall of the pipe body is provided with an inserting groove, the inner wall of the inserting groove is provided with a sealing ring, both ends of the pipe body are provided with flange plates, both sides of the outer wall of the pipe body are provided with positioning blocks, and the positioning blocks are provided with positioning holes. Through inserting the plug in the adjacent jack groove with the sliding, insert the annular seal inslot with the sealing ring, then wear out the locating hole on the locating piece of one side with the screw rod after, wear out the mounting hole on the ring flange that is located two body junctions again to wear out the locating hole on the locating piece of opposite side, lock the both ends of screw rod through the nut at last, accomplish the fixed erection joint between the multiple pipeline, be favorable to improving the leakproofness of pipeline junction to be favorable to improving the efficiency of pipeline laying.
Description
Technical Field
The utility model relates to the technical field of spiral bimetal welded pipes, in particular to a spiral bimetal welded pipe.
Background
H in oil and gas delivery pipeline 2 S、CO 2 Causing severe uniform corrosion, pitting, sulfide stress corrosion cracking and hydrogen induced cracking of the pipe,thereby causing failure and accidents of the conveying pipeline, and adopting the corrosion-resistant composite pipe is one of the most economical modes. The bimetal composite pipe with the price far lower than that of stainless steel is the development direction of corrosion-resistant oil and gas conveying pipes, and the straight-slit formed composite pipe cannot meet the needs of users due to the limitation of the width of the composite plate.
For example, chinese patent publication No. CN203404502U discloses a spiral seam bimetal composite welded pipe which is formed by combining an inner corrosion-resistant alloy layer and an outer carbon steel layer and then spirally forming and welding.
However, the above scheme has the following disadvantages:
the bimetal composite pipes with different pipe diameters are manufactured by the composite coiled plates with the same width in the patent document, so that the application field of the bimetal composite pipes is widened, but the pipe body of the bimetal composite pipe in the patent document is simple in structure, the two ends of the pipe lack of connecting structures, and the connection and the fixation of the pipe are inconvenient, so that the laying and mounting efficiency of the pipe is affected.
For this purpose, we propose a spiral bimetallic welded tube.
Disclosure of Invention
The utility model aims to provide a spiral bimetal welded pipe, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the spiral bimetal welded pipe comprises a pipe body, wherein the pipe body is formed by compounding an inner corrosion-resistant alloy layer and an outer carbon steel layer and then performing spiral forming welding, an anti-corrosion mechanism is arranged in the pipe body, the anti-corrosion mechanism comprises an inner anti-corrosion layer arranged on the inner wall of the pipe body and an outer anti-corrosion layer arranged on the outer wall of the pipe body, and the inner anti-corrosion layer and the outer anti-corrosion layer are both polyethylene paint;
one side of the pipe body is provided with an inserting joint, the extending end of the inserting joint is provided with an annular sealing groove, the other side of the inner wall of the pipe body is provided with an inserting groove, the outer diameter of the inserting joint is the same as the inner diameter of the inserting groove, and the inner diameter of the annular sealing groove is the same as the sealing ring;
the inner wall of the inserting groove is provided with a sealing ring, flange plates are arranged at two ends of the pipe body, positioning blocks are arranged at two sides of the outer wall of the pipe body, and positioning holes are formed in the positioning blocks.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the plug connector is slidably inserted into the adjacent plug grooves, the sealing ring is inserted into the annular sealing groove, the screw rod penetrates out of the positioning hole on the positioning block on one side, then penetrates out of the mounting hole on the flange plate positioned at the joint of the two pipe bodies, penetrates out of the positioning hole on the positioning block on the other side, and finally locks the two ends of the screw rod through the nuts, so that the fixed mounting connection between multiple pipelines is completed, the sealing performance of the joint of the pipelines is improved, and the laying efficiency of the pipelines is improved.
Drawings
FIG. 1 is a schematic front view of the present utility model;
FIG. 2 is a schematic view of the front view of the present utility model;
FIG. 3 is a schematic view of the internal structure of the pipe body of the present utility model;
FIG. 4 is a schematic view of a cross-sectional structure of a pipe body of the present utility model;
fig. 5 is an enlarged schematic view of fig. 2 a according to the present utility model.
In the figure: 1. a tube body; 100. an inner layer of corrosion resistant alloy; 101. an outer layer of carbon steel; 2. a plug; 3. an annular seal groove; 4. a plug-in groove; 5. a seal ring; 6. a flange plate; 7. a positioning block; 8. positioning holes; 9. an inner anti-corrosion layer; 10. and an outer anti-corrosion layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Referring to fig. 1-5, the present utility model provides a technical solution: the spiral bimetal welded pipe comprises a pipe body 1, wherein an anti-corrosion mechanism is coated in the pipe body 1, the anti-corrosion mechanism comprises an inner anti-corrosion layer 9 coated on the inner wall of the pipe body 1 and an outer anti-corrosion layer 10 welded on the outer wall of the pipe body 1, and the inner anti-corrosion layer 9 and the outer anti-corrosion layer 10 are both polyethylene paint;
the pipe body 1 is formed by compounding a corrosion-resistant alloy inner layer 100 and a carbon steel outer layer 101 and then spirally forming and welding, the right side of the pipe body 1 is connected with a plug connector 2 through welding, the extending end of the plug connector 2 is provided with an annular sealing groove 3, the left side of the inner wall of the pipe body 1 is provided with a plug groove 4, the outer diameter of the plug connector 2 is the same as the inner diameter of the plug groove 4, and the inner diameter of the annular sealing groove 3 is the same as the sealing ring 5 in size;
the inner wall of the plugging groove 4 is provided with a sealing ring 5, the pipe body 1 and the sealing ring 5 are cast into a whole, the two ends of the pipe body 1 are connected with a flange plate 6 through welding, the left side and the right side of the outer wall of the pipe body 1 are connected with positioning blocks 7 through welding, the positioning blocks 7 are provided with positioning holes 8, and the inner diameter of each positioning hole 8 is identical to the inner diameter of the mounting hole of the flange plate 6.
The working principle of this embodiment is as follows: through inserting bayonet joint 2 slip in the adjacent jack groove 4, insert annular seal groove 3 with sealing ring 5 in, then wear out the locating hole 8 on one side locating piece 7 with the screw rod after, wear out the mounting hole on the ring flange 6 that is located two body 1 junction again to wear out locating hole 8 on the opposite side locating piece 7, lock the both ends of screw rod through the nut at last, accomplish the fixed erection joint between the multiple pipelines, be favorable to improving the leakproofness of pipeline junction to be favorable to improving the efficiency of pipeline laying.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A spiral bimetal welded pipe, which comprises a pipe body (1), and is characterized in that: be provided with corrosion protection mechanism in body (1), one side of body (1) is provided with bayonet joint (2), the end that stretches out of bayonet joint (2) is equipped with annular seal groove (3), the opposite side of body (1) inner wall is equipped with spliced groove (4), the inner wall of spliced groove (4) is provided with sealing ring (5), the both ends of body (1) all are provided with ring flange (6), the outer wall both sides of body (1) all are provided with locating piece (7), be equipped with locating hole (8) on locating piece (7).
2. A spiral bimetallic welded pipe according to claim 1, wherein: the anti-corrosion mechanism comprises an inner anti-corrosion layer (9) arranged on the inner wall of the pipe body (1) and an outer anti-corrosion layer (10) arranged on the outer wall of the pipe body (1).
3. A spiral bimetallic welded pipe according to claim 1, wherein: the pipe body (1) is formed by compounding an anti-corrosion alloy inner layer (100) and a carbon steel outer layer (101) and then spirally forming and welding.
4. A spiral bimetallic welded pipe according to claim 2, wherein: the inner anticorrosive layer (9) and the outer anticorrosive layer (10) are both polyethylene paint.
5. A spiral bimetallic welded pipe according to claim 1, wherein: the outer diameter of the plug connector (2) is the same as the inner diameter of the plug groove (4), and the inner diameter of the annular sealing groove (3) is the same as the sealing ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321950931.9U CN220566754U (en) | 2023-07-21 | 2023-07-21 | Spiral bimetal welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321950931.9U CN220566754U (en) | 2023-07-21 | 2023-07-21 | Spiral bimetal welded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220566754U true CN220566754U (en) | 2024-03-08 |
Family
ID=90095889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321950931.9U Active CN220566754U (en) | 2023-07-21 | 2023-07-21 | Spiral bimetal welded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220566754U (en) |
-
2023
- 2023-07-21 CN CN202321950931.9U patent/CN220566754U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |