CN207673981U - Fiberglass, steel pipe, polyethylene alloy multiple tube - Google Patents

Fiberglass, steel pipe, polyethylene alloy multiple tube Download PDF

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Publication number
CN207673981U
CN207673981U CN201721422301.9U CN201721422301U CN207673981U CN 207673981 U CN207673981 U CN 207673981U CN 201721422301 U CN201721422301 U CN 201721422301U CN 207673981 U CN207673981 U CN 207673981U
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China
Prior art keywords
steel
pipe
outside
steel pipe
attachment cap
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Active
Application number
CN201721422301.9U
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Chinese (zh)
Inventor
吉增胜
黄周启
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Shaanxi Shengda Drilling Technology Co Ltd
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Shaanxi Shengda Drilling Technology Co Ltd
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Priority to CN201721422301.9U priority Critical patent/CN207673981U/en
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Abstract

A kind of fiberglass of the utility model offer, steel pipe, polyethylene alloy multiple tube, including outer liner tube, steel pipe, internal lining pipe, steel joint A, steel joint B, attachment cap, it combines closely on the outside of steel pipe outer liner tube, it combines closely on the inside of steel pipe internal lining pipe, one end of steel joint A is connect with steel-pipe welding, and external screw thread is provided on the outside of the other end;One end of steel joint B is connect with steel-pipe welding, is liner flange on the outside of the other end;Attachment cap is located at the outside of steel joint B, and the internal diameter of attachment cap one end is less than the internal diameter of boss, and the internal diameter of the other end is more than the internal diameter of boss, the groove A corresponding to boss is provided among inside, and fluted B is arranged in outside;It is provided with sealing ring between two liner flange;Advantage is:High molecular polythene liner solves the problem of that the fiberglass of abrasionproof, anti-corrosion while outside solves external anti-corrosion;Meanwhile dedicated attachment device, have and facilitates handling, the big advantage of intensity.

Description

Fiberglass, steel pipe, polyethylene alloy multiple tube
Technical field
The utility model is related to corrosion-proof pipe line fields, compound more particularly, to a kind of fiberglass, steel pipe, polyethylene alloy Pipe.
Background technology
After oil field development, moisture content is higher and higher, and etching problem is also increasingly severe.It is both economical, feasible at present anti- Rotten material is liner oil pipe.Liner oil pipe is that the high molecular material with high-wearing feature is lining into plain tubing, and end uses The form of flange ensures that internal lining pipe is sealed with inboard wall of tube body.
In recent years, liner oil pipe is widely applied in coal pipe gas and high water cut oil field exploitation, in abrasionproof, anti-corrosion side Face significant effect.Internal anti-corrosion can be solved by liner, but the external corrosion of oil pipe still has, and increasingly prominent Go out;Meanwhile common surface line faces the problem of needing frequent installing and dismounting, existing attachment device operates very tired Difficulty takes time and effort.
Invention content
The purpose of this utility model is that solve the deficiencies in the prior art, and fiberglass, steel pipe, polyethylene alloy are provided Multiple tube, the technical solution of the utility model are:Fiberglass, steel pipe, polyethylene alloy multiple tube, including it is outer liner tube, steel pipe, interior Bushing pipe, steel joint A, steel joint B, attachment cap, outer liner tube of combining closely on the outside of the steel pipe, combine closely on the inside of steel pipe One end of internal lining pipe, the steel joint A is connect with steel-pipe welding, and the end of internal lining pipe is liner flange, the steel The corresponding liner flange in interior one end of connector A is provided with flange, and external screw thread is provided on the outside of the other end of the steel joint A; One end of the steel joint B is connect with steel-pipe welding, and the end of internal lining pipe is liner flange, is set in the middle part of steel joint B It is equipped with boss, is liner flange on the outside of the other end of steel joint B;The attachment cap is located at the outside of steel joint B, connection The internal diameter of cap one end is less than the internal diameter of boss, and the internal diameter of the other end of attachment cap is more than the internal diameter of boss, inside be provided with outside Screw thread corresponding internal thread is provided with the groove A corresponding to boss among the inside of attachment cap, is provided on the outside of attachment cap recessed Slot B;It is provided with sealing ring between two liner flange.
The internal lining pipe is high molecular polythene material.
The outer liner tube is glass steel material.
The steel pipe is common steel tube or waste and old oil passageway.
The outside of the attachment cap is evenly arranged with 6 groove B for one week.
The utility model has the beneficial effects that:Fiberglass, steel pipe, polyethylene alloy multiple tube, pass through high molecular polythene Liner solves the problem of abrasionproof, anti-corrosion while solving external anti-corrosion by external fiberglass;Meanwhile it is dedicated Attachment device has and facilitates handling, the big advantage of intensity.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the connection figure of the steel joint A of the utility model.
Fig. 3 is the connection figure of the steel joint B and attachment cap of the utility model.
Fig. 4 is the structural schematic diagram of the steel joint A of the utility model.
Fig. 5 is the sectional view of the attachment cap of the utility model.
Wherein:1 is outer liner tube, and 2 be steel pipe, and 3 be internal lining pipe, and 4 be steel joint A, and 5 be steel joint B, and 6 turn over for liner Side, 7 be flange, and 8 be external screw thread, and 9 be boss, and 10 be groove A, and 11 be internal thread, and 12 be groove B, and 13 be sealing ring, and 14 be company Connect cap.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
The utility model includes outer liner tube 1, steel pipe 2, internal lining pipe 3, steel joint A4, steel joint B5, attachment cap 14, institute The outside of steel pipe 2 stated is combined closely outer liner tube 1, and 2 inside of steel pipe is combined closely internal lining pipe 3, one end of the steel joint A4 It is welded to connect with steel pipe 2, the end of internal lining pipe 3 is liner flange 6, the corresponding liner flange in interior one end of the steel joint A4 6 are provided with flange 7, and external screw thread 8 is provided on the outside of the other end of the steel joint A4;One end of the steel joint B5 It is welded to connect with steel pipe 2, the end of internal lining pipe 3 is liner flange 6, and boss 9, steel joint are provided in the middle part of steel joint B5 It is liner flange 6 on the outside of the other end of B5;The attachment cap 14 is located at the outside of steel joint B5,14 one end of attachment cap it is interior Diameter is less than the internal diameter of boss 9, and the internal diameter of the other end of attachment cap 14 is more than the internal diameter of boss 9, and inside is provided with and 8 phase of external screw thread The internal thread 11 answered is provided with the groove A10 corresponding to boss 9, the outside setting of attachment cap 14 among the inside of attachment cap 14 Fluted B12;It is provided with sealing ring 13 between two liner flange 6.
The internal lining pipe 3 is high molecular polythene material.
The outer liner tube 1 is glass steel material.
The steel pipe 2 is common steel tube or waste and old oil passageway.
The outside of the attachment cap 14 is evenly arranged with 6 groove B12 for one week.

Claims (5)

1. fiberglass, steel pipe, polyethylene alloy multiple tube, including outer liner tube(1), steel pipe(2), internal lining pipe(3), steel joint A (4), steel joint B(5), attachment cap(14), it is characterised in that:The steel pipe(2)Outside is combined closely outer liner tube(1), steel Pipe(2)Inside is combined closely internal lining pipe(3), the steel joint A(4)One end and steel pipe(2)It is welded to connect, internal lining pipe (3)End be liner flange(6), the steel joint A(4)The corresponding liner flange in interior one end(6)It is provided with flange (7), the steel joint A(4)The other end on the outside of be provided with external screw thread(8);The steel joint B(5)One end with Steel pipe(2)It is welded to connect, internal lining pipe(3)End be liner flange(6), steel joint B(5)Middle part be provided with boss(9), Steel joint B(5)The other end on the outside of be liner flange(6);The attachment cap(14)Positioned at steel joint B(5)Outside, Attachment cap(14)The internal diameter of one end is less than boss(9)Internal diameter, attachment cap(14)The other end internal diameter be more than boss(9)It is interior Diameter, inside is provided with and external screw thread(8)Corresponding internal thread(11), attachment cap(14)Inside among be provided with corresponding to boss (9)Groove A(10), attachment cap(14)Outside fluted B is set(12);Two liner flange(6)Between be provided with sealing Circle(13).
2. fiberglass according to claim 1, steel pipe, polyethylene alloy multiple tube, it is characterised in that:The internal lining pipe (3)For high molecular polythene material.
3. fiberglass according to claim 1, steel pipe, polyethylene alloy multiple tube, it is characterised in that:The outer liner tube (1)For glass steel material.
4. fiberglass according to claim 1, steel pipe, polyethylene alloy multiple tube, it is characterised in that:The steel pipe (2)For common steel tube or waste and old oil passageway.
5. fiberglass according to claim 1, steel pipe, polyethylene alloy multiple tube, it is characterised in that:The attachment cap (14)Outside be evenly arranged within one week 6 groove B(12).
CN201721422301.9U 2017-10-31 2017-10-31 Fiberglass, steel pipe, polyethylene alloy multiple tube Active CN207673981U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721422301.9U CN207673981U (en) 2017-10-31 2017-10-31 Fiberglass, steel pipe, polyethylene alloy multiple tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721422301.9U CN207673981U (en) 2017-10-31 2017-10-31 Fiberglass, steel pipe, polyethylene alloy multiple tube

Publications (1)

Publication Number Publication Date
CN207673981U true CN207673981U (en) 2018-07-31

Family

ID=62963856

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721422301.9U Active CN207673981U (en) 2017-10-31 2017-10-31 Fiberglass, steel pipe, polyethylene alloy multiple tube

Country Status (1)

Country Link
CN (1) CN207673981U (en)

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