CN201739700U

CN201739700U - High-density PE elbow and tee connector

Info

Publication number: CN201739700U
Application number: CN2010202975893U
Authority: CN
Inventors: 王洪信; 张汉
Original assignee: FURUI SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd KELAMAYI CITY
Current assignee: FURUI SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd KELAMAYI CITY
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-02-09
Anticipated expiration: 2020-08-19

Abstract

The utility model relates to a high-density PE elbow and tee connector. In the technical scheme, a port of a modified PE pipe (4) lined in an original steel pipe (5) is connected with a PE sized short section (3), a port of a PE connector (2) lined in a steel connector (1) is connected with a PE short section (9), an outer edge of a connecting port of the PE short section (9) and the PE sized short section (3) is connected with a PE electrically fused sleeve (8), a port of the steel connector (1) is welded with a port of the original steel pipe (5), and the steel connector (1) is filled with cement mortar (7). When the high-density PE pipe is inserted in an old pipe to be repaired, a pipe-in-pipe composite structure can be formed due to the rigidity and strength of the original old pipe as a bearing structure and properties of a high-density HDPE pipes such as corrosion resistance, wear resistance, high permeability and the like, so that the repaired and connected pipe has integrated performances of the steel pipe and the high-density PE pipe, thereby prolonging the service life of the original old pipe, and reducing the cost for pipe replacement. Moreover, the utility model can adapt to various complex construction environments, and can realize prompt repair once pipes are broken, thereby saving the cost and reducing the loss.

Description

High density PE bend pipe, tee union device

Technical field:

The utility model relates to a kind of constructional device, especially high density PE bend pipe, tee union device of oil, gas, water pipeline bend pipe or three-way pipe being repaired erection joint.

Background technique:

At present, in the known technology, at oil to be repaired, gas, after the high density polyethylene (HDPE) (being called for short HDPE) that interts in water pipeline carries out is managed bushing pipe, reach pipeline rehabilitation and corrosion-resistant purpose, at the scene in the construction, pipeline cleaning and HDPE pipe liner will be divided into a plurality of construction sections to carry out respectively, after each construction section cleaning liner is finished, will require according to the technological process of pipeline each construction section HDPE pipe is interconnected perforation, wherein when bend pipe or threeway connection, after prior art is installed, be prone to the interface corrosion, unfavorable accidents such as infiltration and wearing and tearing, and anticorrosion, anti-infiltration, anti abrasive related art scheme is not seen open.

Summary of the invention:

When the purpose of this utility model provides a kind of high density PE pipe bend pipe, the threeway that will repair after the preservative treatment and connects, have anticorrosion, anti-infiltration, anti abrasive constructional device, i.e. high density PE bend pipe, tee union device.

Realize that the measure of the present utility model purpose comprises: lining modified PE tube opening in former steel pipe connects PE size pipe nipple, the PE splice port of lining in the steel joint connects the PE pipe nipple again, be connected PE electric smelting cover at the PE pipe nipple with PE size pipe nipple connecting port outer rim, steel splice port and the welding of raw steel tube opening, filling concrete mortar in the steel joint.

The utility model advantage: highdensity PE pipe is inserted in the old pipeline that needs to repair, utilize the rigidity of former pipeline and intensity for load-carrying construction and characteristics such as high density HDPE pipe is corrosion-resistant, wear-resistant, anti-infiltrations, form the pipe-in-pipe composite structure, make repair and connect after pipeline possess the combination property of steel pipe and high density PE pipe, original old pipeline is increased the service life, thereby reduce the cost of changing pipeline; Adapt to multiple different complicated construction environment, after pipeline breaking, can timely the pipeline that breaks be repaired, save cost, reduce loss.

Description of drawings:

Fig. 1 is the utility model embodiment 1 a structural representation

Reference character comprises: steel joint 1, PE joint 2, PE size pipe nipple 3, modified PE pipe 4, former steel pipe 5, steel horn mouth 6, slush 7, PE electric smelting cover 8, PE pipe nipple 9.

Embodiment:

Embodiment 1: lining modified PE pipe 4 ports in former steel pipe 5 connect PE size pipe nipple 3, PE joint 2 ports of lining in steel joint 1 connect PE pipe nipple 9 again, be connected PE electric smelting cover 8 at PE pipe nipple 9 with PE size pipe nipple 3 connecting port outer rims, steel joint 1 port and the welding of former steel pipe 5 ports, filling concrete mortar 7 in steel joint 1.

Steel joint 1 bore is greater than former steel pipe 5, and steel joint 1 connects former steel pipe 5 by steel horn mouth 6.

Steel joint 1 and PE joint 2 are bend pipe or three-way pipe.

When the utility model embodiment used, with the artificial power of electrically powered machine, the wire rope that drives 2mm passed through former steel pipe 5, had been that power drive scissors rule are cleaned the impurity in the former steel pipe 5 with the tractor; With file rule the overlap in former steel pipe 5 tube walls is removed; With the tractor is that power drive steel plate brush cleans the impurity in former steel pipe 5 pipelines; With wire brush the greasy dirt of remaining residue in the pipeline is carried out repeatedly removing at last, to reach the construction quality requirement of liner modified PE pipe 4; Drawing head is fixed on the head end of HDPE modified PE pipe 4 bushing pipes, links to each other with the tractor wire rope; Start size reducing machine and tractor synchronously, behind the temporary transient undergauge of HDPE modified PE pipe 4 advanced size reducing machines, enter former steel pipe 5 pipelines then, under the effect of tractive force, pull out from the other end.At the end of modified PE pipe 4 welding PE size pipe nipple 3, dock with PE joint 2 ports that are connected with PE pipe nipple 9 in the steel joint 1, and at the fixing PE electric smelting cover 8 of outer rim, through 8 heating of PE electric smelting cover two-port is welded, at 1 mouthful of steel joint and 9 filling concrete mortars 7 of PE pipe nipple, Weldable Steel horn mouth 6 between steel joint 1 end and former steel pipe 5 ports.

In the utility model, highdensity PE pipe is inserted in the old pipeline that needs to repair, utilize the rigidity of former pipeline and intensity for load-carrying construction and characteristics such as high density HDPE pipe is corrosion-resistant, wear-resistant, anti-infiltrations, form the pipe-in-pipe composite structure, make repair and connect after pipeline possess the combination property of steel pipe and high density PE pipe, original old pipeline is increased the service life, thereby reduce the cost of changing pipeline; Adapt to multiple different complicated construction environment, after pipeline breaking, can timely the pipeline that breaks be repaired, save cost, reduce loss.

Claims

1. high density PE bend pipe, tee union device, it is characterized in that, lining modified PE pipe (4) port in former steel pipe (5) connects PE size pipe nipple (3), PE joint (2) port of lining in steel joint (1) connects PE pipe nipple (9) again, be connected PE electric smelting cover (8) at PE pipe nipple (9) with PE size pipe nipple (3) connecting port outer rim, steel joint (1) port and the welding of former steel pipe (5) port, filling concrete mortar (7) in steel joint (1).

2. high density PE bend pipe as claimed in claim 1, tee union device is characterized in that, steel joint (1) bore is greater than former steel pipe (5), and steel joint (1) connects former steel pipe (5) by steel horn mouth (6).

3. high density PE bend pipe as claimed in claim 1, tee union device is characterized in that, steel joint (1) and PE joint (2) are bend pipe or three-way pipe.