CN216976067U - TPEP anticorrosion seamless steel pipe - Google Patents
TPEP anticorrosion seamless steel pipe Download PDFInfo
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- CN216976067U CN216976067U CN202220685820.9U CN202220685820U CN216976067U CN 216976067 U CN216976067 U CN 216976067U CN 202220685820 U CN202220685820 U CN 202220685820U CN 216976067 U CN216976067 U CN 216976067U
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Abstract
The utility model relates to the field of anti-corrosion pipes, in particular to a TPEP anti-corrosion seamless steel pipe. Including the seamless pipe body, the coating of seamless pipe body inner edge has interior anticorrosive coating, seamless pipe body outer fringe is provided with outer anticorrosive coating, the cover is equipped with the lantern ring on the outer anticorrosive coating right end, the sprue has been seted up on the lantern ring, this end of body outer fringe of seamless pipe on outer anticorrosive coating right side is fixed with first fender ring, first fender ring outer fringe is fixed with first sealing ring, first sealing ring and lantern ring inner edge sealing contact, the lantern ring inner edge on first sealing ring right side is fixed with the second and keeps off the ring, the second keeps off the ring inner edge and is fixed with the second sealing ring, second sealing ring inner edge and seamless pipe body outer fringe sealing contact. The utility model has simple structure and convenient construction, can improve the laying efficiency of the TPEP anticorrosion seamless steel pipe, can effectively carry out secondary sealing on the welding seam of the seamless steel pipe body, can effectively carry out anticorrosion on the welding seam while carrying out secondary sealing, and saves the step of carrying out anticorrosion treatment on the welding seam independently.
Description
Technical Field
The utility model relates to the field of anti-corrosion pipes, in particular to a TPEP anti-corrosion seamless steel pipe.
Background
The TPEP anti-corrosion 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 anticorrosion pipe adopts thermal fusion winding technology, bottom epoxy powder, middle adhesive and outer polyethylene to form an anticorrosion layer with a three-layer structure, the inner wall adopts a thermal spraying epoxy powder anticorrosion mode, and the powder is uniformly coated on the surface of the pipe body after the steel pipe is heated at high temperature, so that the coating has the advantages of fusion bonding epoxy powder (FBE) coating and polyethylene coating. The TPEP anti-corrosion seamless steel pipe is generally used for transmitting high-pressure media, after the welding of the seamless pipe is completed, a welding seam is easy to leak, the welding requirement of the welding seam is high, anti-corrosion treatment is needed after the welding is completed, the welding efficiency of the existing TPEP anti-corrosion seamless steel pipe is low, the sealing strength of the welding seam cannot be guaranteed, and the welding seam is inconvenient to carry out anti-corrosion treatment after the welding.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing the TPEP anti-corrosion seamless steel pipe which has a simple structure, is convenient to construct, can effectively perform secondary sealing on a welding seam of a seamless pipe body, and can effectively prevent corrosion on the welding seam.
In order to achieve the purpose, the utility model provides the technical scheme that:
the utility model provides a TPEP anticorrosion seamless steel pipe, including the seamless pipe body, the coating of seamless pipe body inner edge has interior anticorrosive coating, seamless pipe body outer fringe is provided with outer anticorrosive coating, the body end protrusion of seamless pipe outside outer anticorrosive coating, the cover is equipped with the lantern ring on the outer anticorrosive coating right-hand member, the notes hole has been seted up on the lantern ring, seamless pipe body end outer fringe on outer anticorrosive coating right side is fixed with first fender ring, first fender ring outer fringe is fixed with first sealing ring, first sealing ring and lantern ring inner edge sealing contact, the lantern ring on first sealing ring right side is fixed with second fender ring, second fender ring inner edge is fixed with the second sealing ring, second sealing ring inner edge and seamless pipe body outer fringe sealing contact, annular groove has been seted up to lantern ring right-hand member inner edge, the upper and lower both sides in the annular groove all are fixed with the threading die.
Specifically, interior anticorrosive coating is interior epoxy powder layer, and outer anticorrosive coating is provided with the polyethylene layer including coating the outer epoxy powder layer at seamless pipe body outer fringe including coating, outer epoxy powder layer outside, and polyethylene layer and outer epoxy powder layer pass through adhesive layer bonding fixed.
Specifically, the first sealing ring and the second sealing ring are both high-temperature resistant elastic rubber rings.
Specifically, the lantern ring is made of engineering plastics.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model has simple structure and convenient construction, can improve the laying efficiency of the TPEP anticorrosion seamless steel pipe, can effectively carry out secondary sealing on the welding seam of the seamless steel pipe body, can effectively carry out anticorrosion on the welding seam while carrying out secondary sealing, saves the step of carrying out anticorrosion treatment on the welding seam independently,
drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of TPEP corrosion-resistant seamless steel pipe during connection.
Fig. 3 is a right side view of the collar.
Detailed Description
As shown in fig. 1-3, a TPEP corrosion-resistant seamless steel pipe comprises a seamless pipe body 1, an inner corrosion-resistant layer is coated on the inner edge of the seamless pipe body 1, an outer corrosion-resistant layer 2 is arranged on the outer edge of the seamless pipe body 1, the inner corrosion-resistant layer is an inner epoxy powder layer, the outer corrosion-resistant layer 2 comprises an outer epoxy powder layer coated on the outer edge of the seamless pipe body 1, a polyethylene layer is arranged on the outer side of the outer epoxy powder layer, and the polyethylene layer and the outer epoxy powder layer are bonded and fixed through an adhesive layer.
1 tip protrusion of seamless pipe body to the outer anticorrosive coating 2 outside, the cover is equipped with lantern ring 6 on the 2 right-hand members of outer anticorrosive coating, lantern ring 6 is the engineering plastics material, has seted up injection hole 7 on the lantern ring 6, and the seamless pipe body 1 tip outer fringe on outer anticorrosive coating 2 right side is fixed with first fender ring 3, and first fender ring 3 outer fringe is fixed with first sealing ring 5, and first sealing ring 5 and 6 inner edge sealing contact of lantern ring, 6 inner edges of lantern ring on first sealing ring 5 right side are fixed with second fender ring 8, and 8 inner edges of second fender ring are fixed with second sealing ring 9, and 9 inner edges of second sealing ring and 1 outer edge sealing contact of seamless pipe body, first sealing ring 5 and second sealing ring 9 are high temperature resistant elastic rubber ring, and annular 10 has been seted up to 6 right-hand members inner edges of lantern ring, and the upper and lower both sides in the annular 10 all are fixed with threading die 11.
When two TPEP anticorrosion seamless steel pipes are connected, the lantern ring 6 moves towards the left side to expose the right side end part of the seamless steel pipe body 1, the seamless steel pipe bodies 1 of the two TPEP anticorrosion seamless steel pipes are butted and then welded and fixed, the welding seam 4 is polished, then the lantern ring 6 moves towards the right side direction to position the second baffle ring 8 and the second sealing ring 9 at the right side of the welding seam 4, a pull rod is inserted into the injection hole 7 and rotates the lantern ring 6, so that the screw die 11 is in threaded connection with the outer anticorrosion layer of the TPEP anticorrosion seamless steel pipe at one side, and then the lantern ring 6 is stabilized, at the moment, the first sealing ring 5 and the second sealing ring 9 are respectively in sealing connection with the seamless steel pipe bodies 1 of the two TPEP anticorrosion seamless steel pipes, the opposite end parts of the two seamless steel pipe bodies 1, the first baffle ring 3, the first sealing ring 5, the second baffle ring 8, the second sealing ring 9 and the lantern ring 6 form an annular cavity, and then, injecting molten polyethylene into the annular cavity through the injection holes 7, cooling the molten polyethylene to form a polyethylene ring, wherein the polyethylene ring can perform secondary sealing on the welding seam 4 and can perform corrosion prevention on the welding seam 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a TPEP anticorrosion seamless steel pipe, including the seamless pipe body, the coating of seamless pipe body inner edge has interior anticorrosive coating, seamless pipe body outer fringe is provided with outer anticorrosive coating, seamless pipe body tip is outside protruding to outer anticorrosive coating, a serial communication port, the cover is equipped with the lantern ring on the outer anticorrosive coating right end, the notes hole has been seted up on the lantern ring, seamless pipe body tip outer fringe on outer anticorrosive coating right side is fixed with first fender ring, first fender ring outer fringe is fixed with first sealing ring, first sealing ring and lantern ring inner edge sealing contact, the lantern ring inner edge on first sealing ring right side is fixed with second fender ring, second fender ring inner edge is fixed with the second sealing ring, second sealing ring inner edge and seamless pipe body outer fringe sealing contact, the annular has been seted up to lantern ring right-hand member inner edge, the upper and lower both sides in the annular all are fixed with the threading die.
2. The TPEP corrosion-resistant seamless steel pipe according to claim 1, wherein the inner corrosion-resistant layer is an inner epoxy powder layer, the outer corrosion-resistant layer comprises an outer epoxy powder layer coated on the outer edge of the seamless steel pipe body, a polyethylene layer is arranged on the outer side of the outer epoxy powder layer, and the polyethylene layer and the outer epoxy powder layer are fixedly bonded through an adhesive layer.
3. The TPEP corrosion-resistant seamless steel pipe according to claim 1, wherein the first sealing ring and the second sealing ring are both high-temperature-resistant elastic rubber rings.
4. The TPEP corrosion-resistant seamless steel pipe as claimed in claim 1, wherein the lantern ring is made of engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220685820.9U CN216976067U (en) | 2022-03-28 | 2022-03-28 | TPEP anticorrosion seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220685820.9U CN216976067U (en) | 2022-03-28 | 2022-03-28 | TPEP anticorrosion seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216976067U true CN216976067U (en) | 2022-07-15 |
Family
ID=82340153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220685820.9U Active CN216976067U (en) | 2022-03-28 | 2022-03-28 | TPEP anticorrosion seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216976067U (en) |
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2022
- 2022-03-28 CN CN202220685820.9U patent/CN216976067U/en active Active
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