CN2564838Y

CN2564838Y - Integrated water-proof heat-insulation pipe with bracket

Info

Publication number: CN2564838Y
Application number: CN 01265577
Authority: CN
Inventors: 韩哲; 李竞力
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-29
Filing date: 2001-09-29
Publication date: 2003-08-06
Anticipated expiration: 2011-09-29

Abstract

The utility model relates to an integrated waterproof heat-insulating pipe for fixedly supporting foam. The utility model relates to a heat-insulating pipe used in the field of petroleum ground engineering. The utility model comprises a steel pipe (1), a heat-insulating layer (2), a waterproof layer (3) and a rectangular pipe (4), wherein, the outer wall (1-1) of the steel pipe (1) is fixedly connected with an opening (4-3) of the rectangular pipe (4) so that the rectangular pipe (4) becomes a closed structure; the waterproof layer (3) is in sleeve joint with the outer part of the steel pipe (1); the joint seam (3-1) of the waterproof layer (3) is sealed; the heat-insulating layer (2) is arranged in the closed space (7) which is enclosed by the outer wall (1-1) of the steel pipe (1), the outer wall (4-1) of the upper end of the rectangular pipe (4), and the waterproof layer (3); the heat-insulating layer (2) is connected with every face which encloses the closed space (7). Due to the adoption of closure, fixed support and various sealing and waterproof measures, simultaneously, the utility model is a prefabricated product, the utility model which is convenient to install on site prevents the phenomenon of water seepage or water inflow after the steel pipe is buried in the ground, and thereby, the utility model ensures an oil transporting pipeline not to be corroded and prolongs the service life of the oil transporting pipeline.

Description

Waterproof is held in the palm foam integral heat insulation pipe admittedly

Technical field: the utility model relates to the used thermal insulation pipe in oil ground surface works field.

Background technique: cold area, existing crude oil pipeline is outside equipped with thermal insulation layer and watertightness barrier, expand with heat and contract with cold for fear of pipeline and to destroy well head and metering process, near the well head tube wall is provided with the safe conduit saddle that does not seal, and is provided with the thermal insulation layer of conduit saddle pipeline and watertightness barrier can be destroyed when conduit saddle is installed; Add the conduit saddle that does not seal, all make pipeline bury that water and steam easily enter thermal insulation layer and corrosion pipeline behind the ground, and the water-soluble back of the residual liquid of thermal insulation layer forms aggressive medium, has aggravated Corrosion of Pipeline, has shortened the working life of pipeline.

Summary of the invention: the purpose of this utility model is that a kind of waterproof of development is held in the palm foam integral heat insulation pipe admittedly, and it can stop water, steam to enter conveyance conduit with after conveyance conduit is connected.The utility model comprises steel pipe 1, thermal insulation layer 2, watertightness barrier 3, it also comprises rectangular tube 4, the outer wall 1-1 of steel pipe 1 and the opening 4-3 of rectangular tube 4 are affixed, make rectangular tube 4 become enclosed construction, watertightness barrier 3 is socketed on beyond the steel pipe 1, the seam 3-1 of watertightness barrier 3 sealing, and the upper end outer wall 4-1 of the outer wall 1-1 of steel pipe 1, rectangular tube 4, watertightness barrier 3 surround enclosed space 7, thermal insulation layer 2 is set in the enclosed space 7, and thermal insulation layer 2 is connected with each face that surrounds enclosed space 7.This is practical owing to adopt solid holder of sealing and multiple water-tight measure, simultaneously the utility model is prefabricated production, makes its scene easy for installation, has avoided steel pipe to bury the generation of infiltration behind the ground or water inlet phenomenon, thereby guaranteed that oil transport pipeline does not corrode, prolonged the working life of oil transport pipeline.

Description of drawings: Fig. 1 is the structure sectional view of former thermal insulation pipe, and Fig. 2 is a structural representation of the present utility model, and Fig. 3 is the A-A sectional drawing of Fig. 2, and Fig. 4 is the transverse sectional view in the embodiment two.

Embodiment one: present embodiment is by steel pipe 1, thermal insulation layer 2, watertightness barrier 3, rectangular tube 4, waterproof gasket cement 6, solid pier 8 is formed with burying, the outer wall 1-1 of steel pipe 1 and the opening 4-3 of rectangular tube 4 are integrally welded, make rectangular tube 4 become enclosed construction, and the outer wall 4-1 place, upper end of rectangular tube 4 is coated with waterproof gasket cement 6, watertightness barrier 3 is placed in beyond the steel pipe 1, the seam 3-1 solid welding of watertightness barrier 3, the upper end outer wall 4-1 of rectangular tube 4 is bonding with the watertightness barrier 3 that is placed in outside the steel pipe 1, the outer wall 1-1 of steel pipe 1, the upper end outer wall 4-1 of rectangular tube 4, watertightness barrier 3 surrounds enclosed space 7, be full of insulating foam in the enclosed space 7 and form thermal insulation layer 2, thermal insulation layer 2 is bonding with each face that surrounds enclosed space 7, and the embedded part 8-1 on the connecting plate 4-2 of rectangular tube 4 and the solid pier 8 affixed with burying.

Embodiment two: what present embodiment and embodiment one were different is to increase waterproof Capsule 9, in waterproof Capsule 9, be coated with thermosol 10, two waterproof Capsules 9 are socketed on the steel pipe 1, and by thermosol 10 and watertightness barrier 3, thermal insulation layer 2, steel pipe 1 cementation, waterproof Capsule 9 can make the utility model further seal.Other composition is identical with embodiment one with annexation.

Embodiment three: what present embodiment and embodiment one were different is to increase adhesive tape 5, and adhesive tape 5 closely is wound on the outer wall 1-1 of steel pipe 1, and adhesive tape 5 makes steel pipe 1 and thermal insulation layer 2 connect airtight.Other composition is identical with embodiment one with annexation.

Claims

1, waterproof is held in the palm foam integral heat insulation pipe admittedly, it comprises steel pipe (1), thermal insulation layer (2), watertightness barrier (3), it is characterized in that it also comprises rectangular tube (4), the outer wall (1-1) of steel pipe (1) is affixed with the opening (4-3) of rectangular tube (4), make rectangular tube (4) become enclosed construction, watertightness barrier (3) is socketed on steel pipe (1) in addition, seam (3-1) sealing of watertightness barrier (3), the outer wall (1-1) of steel pipe (1), the upper end outer wall (4-1) of rectangular tube (4), watertightness barrier (3) surrounds enclosed space (7), thermal insulation layer (2) is set in the enclosed space (7), and thermal insulation layer (2) is connected with each face that surrounds enclosed space (7).

2, waterproof according to claim 1 is held in the palm foam integral heat insulation pipe admittedly, it is characterized in that increasing waterproof Capsule (9), in waterproof Capsule (9), be coated with thermosol (10), two waterproof Capsules (9) are socketed on the steel pipe (1), and by thermosol (10) and watertightness barrier (3), thermal insulation layer (2), steel pipe (1) cementation.

3, waterproof according to claim 1 is held in the palm foam integral heat insulation pipe admittedly, it is characterized in that increasing adhesive tape (5), and adhesive tape (5) closely is wound on the outer wall (1-1) of steel pipe (1).