CN217234887U - TPEP spiral anticorrosive steel pipe - Google Patents
TPEP spiral anticorrosive steel pipe Download PDFInfo
- Publication number
- CN217234887U CN217234887U CN202221094299.8U CN202221094299U CN217234887U CN 217234887 U CN217234887 U CN 217234887U CN 202221094299 U CN202221094299 U CN 202221094299U CN 217234887 U CN217234887 U CN 217234887U
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- Prior art keywords
- steel pipe
- pipe body
- ring
- polyethylene
- plug bush
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to an anticorrosive steel pipe field, concretely relates to anticorrosive steel pipe of TPEP spiral. Including the steel pipe body, the inner edge coating of steel pipe body has interior epoxy powder layer, the steel pipe body outside sets up outer anticorrosive coating, the length of steel pipe body is greater than the length of outer anticorrosive coating, the tip outer fringe of steel pipe body is all inlayed and is fixed with the heat insulating ring, outer anticorrosive coating is located between two heat insulating rings, the right-hand member internal fixation of steel pipe body has the fender ring, it has the plug bush to peg graft in the right-hand member of steel pipe body, the fender ring blocks the plug bush, the annular has been seted up to the plug bush outer fringe, the annular endotheca is equipped with the polyethylene ring, steel pipe body right-hand member corresponds with polyethylene ring outer fringe middle part. The utility model discloses, when the steel pipe body welded, the heat that the welding produced can make the polyethylene ring outside be in molten state, and the polyethylene ring that the outside is molten state can glue and cover on the inner edge of this end of body of steel pipe, and the polyethylene that is molten state simultaneously can fill the butt joint and seal, further improvement sealing performance.
Description
Technical Field
The utility model relates to an anticorrosive steel pipe field, concretely relates to anticorrosive steel pipe of TPEP spiral.
Background
The TPEP spiral anti-corrosion steel pipe is a product upgraded again on the basis of an outer 3PE inner fusion epoxy anti-corrosion steel pipe and an outer single-layer polyethylene inner epoxy composite steel pipe, and is a common steel pipe anti-corrosion form for the buried long-distance transmission pipeline at present. The outer wall of the TPEP spiral anti-corrosion steel pipe adopts thermal fusion winding technology, bottom epoxy powder, middle adhesive and outer polyethylene to form an anti-corrosion layer with a three-layer structure, the inner wall adopts a thermal spraying epoxy powder anti-corrosion mode, the steel pipe is uniformly coated with powder on the surface of the pipe body after being heated at high temperature, and therefore the coating has the advantages of fusion bonding epoxy powder (FBE) coating and polyethylene coating. Spiral anticorrosive steel pipe is in welding process, and the anticorrosive coating in the inboard anticorrosive coating of steel pipe body and the anticorrosive coating in the outside receive high temperature easily and damage, can be in weld bond outside coating anticorrosive paint after the steel pipe body welding, but, after long-time use, the inside outside corruption of seam crossing is followed easily to the steel pipe body, leads to seam crossing to leak easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that one kind can increase life, can prevent the anticorrosive steel pipe of TPEP spiral that the seam crossing of steel pipe body leaked.
In order to realize the purpose, the utility model provides a technical scheme is:
the utility model provides a TPEP spiral anticorrosive steel pipe, including the steel pipe body, the inner edge coating of steel pipe body has interior epoxy powder layer, the steel pipe body outside sets up outer anticorrosive coating, the length of steel pipe body is greater than the length of outer anticorrosive coating, the tip outer fringe of steel pipe body is all inlayed and is fixed with the thermal-insulated ring, outer anticorrosive coating is located between two thermal-insulated rings, the right-hand member internal fixation of steel pipe body has the fender ring, the plug bush has been inserted in the right-hand member of steel pipe body, the fender ring blocks the plug bush, the annular has been seted up to the plug bush outer fringe, the annular endotheca is equipped with the polyethylene ring, steel pipe body right-hand member corresponds with polyethylene ring outer fringe middle part.
Specifically, outer anticorrosive coating is provided with the polyethylene layer including coating at the outer annular oxygen powder layer of steel pipe body outer fringe, outer annular oxygen powder layer outside, and polyethylene layer and outer annular oxygen powder layer pass through adhesive layer bonding fixed.
Specifically, the outer edge of the plug bush is in contact with the inner epoxy powder layer of the steel pipe body, and the outer edge of the polyethylene ring is flush with the outer edge of the plug bush.
Specifically, the heat insulation ring is an asbestos ring.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has the advantages of being simple in structure, convenient operation, when the steel pipe body welds, the heat that the welding produced can make the polyethylene ring outside be in molten state, the outside is molten state's polyethylene ring can be glued and cover on the inner edge of this end of body of steel pipe, the polyethylene that is molten state simultaneously can fill the seam and seal, further improvement sealing performance, can prevent in the follow-up use that the steel pipe body from outside corroding from the seam crossing inboard, the service life is prolonged, in the welding process, thermal-insulated ring can protect outer anticorrosive coating tip.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of two TPEP spiral anticorrosive steel pipes during connection.
Detailed Description
As shown in figures 1-2, a TPEP spiral anticorrosive steel pipe, includes steel pipe body 1, and the inner edge coating of steel pipe body 1 has interior epoxy powder layer, and the steel pipe body 1 outside sets up outer anticorrosive coating 2, outer anticorrosive coating 2 is including coating the outer epoxy powder layer in steel pipe body 1 outer fringe, and the outer epoxy powder layer outside is provided with the polyethylene layer, and polyethylene layer and outer epoxy powder layer pass through adhesive layer bonding fixed. The length of steel pipe body 1 is greater than the length of outer anticorrosive coating 2, and the tip outer fringe of steel pipe body 1 is all inlayed and is fixed with thermal-insulated ring 6, thermal-insulated ring 6 is the asbestos ring, and outer anticorrosive coating 2 is located between two thermal-insulated rings 6, and the right-hand member internal fixation of steel pipe body 1 has fender ring 3, and it has plug bush 4 to peg graft in the right-hand member of steel pipe body 1, and fender ring 3 blocks plug bush 4, and the annular has been seted up to plug bush 4 outer fringe, and the annular endotheca is equipped with polyethylene ring 5, and steel pipe body 1 right-hand member corresponds with 5 outer fringe middle parts of polyethylene ring, the contact of 4 outer fringes of plug bush and steel pipe body 1's interior epoxy powder layer, 5 outer fringes of polyethylene ring and 4 outer fringe parallel and levels of plug bush.
Before steel pipe body 1 welds, peg graft plug bush 4 in steel pipe body 1 right-hand member, and make and keep off ring 3 and block plug bush 4, make two TPEP spiral anticorrosive steel pipe butt joints, make plug bush 4 peg graft in two TPEP spiral anticorrosive steel pipe relative tip, and make the relative tip contact of steel pipe body 1 of two TPEP spiral anticorrosive steel pipes, the heat that the welding produced can make 5 outsides of polyethylene ring be in molten state, the outside is molten state's polyethylene ring 5 can glue and cover on steel pipe body 1 tip, the polyethylene that is molten state simultaneously can fill the seam and seal, further improvement sealing performance, can prevent in the follow-up use that steel pipe body 1 from the inboard outside corrosion of seam crossing, service life is prolonged, among the welding process, thermal-insulated ring 6 can protect outer anticorrosive coating 2 tip. And (4) after welding, coating anticorrosive paint on the outer side of the joint of the two steel pipe bodies 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (4)
1. The utility model provides a TPEP spiral anticorrosive steel pipe, including the steel pipe body, the inner edge coating of steel pipe body has interior epoxy powder layer, the steel pipe body outside sets up outer anticorrosive coating, a serial communication port, the length of steel pipe body is greater than the length of outer anticorrosive coating, the tip outer fringe of steel pipe body is all inlayed and is fixed with the thermal-insulated ring, outer anticorrosive coating is located between two thermal-insulated rings, the right-hand member internal fixation of steel pipe body has the fender ring, the plug bush has been pegged graft in the right-hand member of steel pipe body, it blocks the plug bush to keep off the ring, the annular has been seted up to the plug bush outer fringe, the annular endotheca is equipped with the polyethylene ring, steel pipe body right-hand member corresponds with polyethylene ring outer fringe middle part.
2. The TPEP spiral anti-corrosion steel pipe as claimed in claim 1, wherein the outer anti-corrosion layer comprises an outer epoxy powder layer coated on the outer edge of the steel pipe body, a polyethylene layer is arranged outside the outer epoxy powder layer, and the polyethylene layer and the outer epoxy powder layer are bonded and fixed through an adhesive layer.
3. The TPEP spiral anti-corrosion steel pipe as claimed in claim 1, wherein the outer edge of the plug bush is in contact with the inner epoxy powder layer of the steel pipe body, and the outer edge of the polyethylene ring is flush with the outer edge of the plug bush.
4. The TPEP spiral corrosion-resistant steel pipe as claimed in claim 1, wherein the heat-insulating ring is an asbestos ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221094299.8U CN217234887U (en) | 2022-05-09 | 2022-05-09 | TPEP spiral anticorrosive steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221094299.8U CN217234887U (en) | 2022-05-09 | 2022-05-09 | TPEP spiral anticorrosive steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217234887U true CN217234887U (en) | 2022-08-19 |
Family
ID=82823948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221094299.8U Active CN217234887U (en) | 2022-05-09 | 2022-05-09 | TPEP spiral anticorrosive steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217234887U (en) |
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2022
- 2022-05-09 CN CN202221094299.8U patent/CN217234887U/en active Active
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