CN2203738Y

CN2203738Y - Glass fibre reinforced plastic insulation combined pipe

Info

Publication number: CN2203738Y
Application number: CN 94228242
Authority: CN
Inventors: 李文波
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-05
Filing date: 1994-04-05
Publication date: 1995-07-19
Anticipated expiration: 2004-04-05

Abstract

The utility model relates to a glass fibre reinforced plastic insulation combined pipe used for an underground and an overground pipelines, comprising a pipe, a sealed rubber ring and a retainer ring, wherein, the pipe is made of polyester resin; an insulation layer is made of polyamine ester foam; an anticorrosive layer is made of glass fibre reinforced plastics or plastics. The utility model has the advantages of long life time, corrosion resistance, good insulation effect, convenient installation, small fluid loss and low cost and can compensate the expansion and contraction; the utility model can be widely used for the underground and an overground pipelines.

Description

Glass fibre reinforced plastic insulation combined pipe

The utility model belongs to the pipe technology field, is a kind of glass fibre reinforced plastics insulation composite tube.

For many years, under ground piping adopts steel pipe, cast iron tube, cement pipe always, these pipelines, use through long-term, local etching usually takes place in the surface within it, and it is more and more coarse to become, thereby influence flowing of fluid or gas, pipeline is destroyed by corroding gradually.

The purpose of this utility model provides a kind of long-life glass fibre reinforced plastics insulation composite tube.

The purpose of this utility model is achieved in that it is made up of pipe, O-ring seal, back-up ring, polyurethane foam insulation layer, anticorrosive coat, its technological points is to adopt alkyd resin to make pipe 1, pipe 2, manage in 2 insertion tubes 1, there are O-ring seal, glass fibre reinforced plastics back-up ring in two pipe jointing part positions, at pipe 1, pipe 2 outer surfaces polyurethane foam insulation layer, anticorrosive coat are arranged.

The utility model adopts that intensity is big, good corrosion resistance, in light weight, the glass fibre reinforced plastics slow, good insulation preformance that conducts heat are manufactured pipeline, add the polyurethane foam heat-insulation layer, adopt O-ring seal, have life-span length, good heat insulating, in light weight, corrosion-resistant, advantage such as preparation process is simple.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Label is described as follows among Fig. 1:

1 pipe, 2 pipes, 3 anticorrosive coats, 4 polyurethane foam insulation layers, 5 O-ring seals, 6 glass fibre reinforced plastics back-up rings.

Manage 1 among Fig. 1, pipe 2 uses the alkyd resin manufacturing, pipe 1 is pegged graft with pipe 2, plugging position has O-ring seal 5 and glass fibre reinforced plastics back-up ring 6, at pipe 1 and pipe 2 outer walls polyurethane foam insulation layer 2 and anticorrosive coat 3 is arranged.

Manufacturing process of the present utility model adopts the conventional process of glass fiber reinforced plastics product, curl on mould with glass fibre cloth, around one deck, brush one deck alkyd resin, according to different size, selection curls the number of plies of glass fibre cloth and brush alkyd resin, the specification of pipe is big more, and the number of plies is many more, and wall is thick more, put O-ring seal and glass fibre reinforced plastics back-up ring at pipe 2 thin ends, on the insertion tube 1, on Glass Steel Tube 1 and pipe 2 outer walls, overlap upper die tooling, pour the moulding of polyurethane foam insulation slurry curing into, anticorrosion after the moulding with glass fibre reinforced plastics or plastics, promptly finished production process of the present utility model.

The utility model adds the polyurethane foam insulation layer owing to adopt fiberglass, adds fiberglass or plastic anti-corrosion, can reach best heat insulation effect, service life is longer more than 5 years than steel pipe, during installation, need not anyly process between the tube and tube, very convenient, it is flexible to have compensation, does not need any expansion measure, and the fluid head loss is little, save the energy, engineering cost is lower than other pipeline 20-30%.

The utility model is widely used in underground, above-ground line.

Claims

1, a kind of glass fibre reinforced plastics insulation composite tube that is used for underground, above ground piping, it is made up of pipe, O-ring seal, back-up ring, it is characterized in that adopting alkyd resin to make pipe (1), pipe (2), pipe (2) insertion tube (1), with O-ring seal (5), back-up ring (6), pipe (1) and pipe (2) outer wall have thermal insulation layer and anticorrosive coat between pipe (1) and the pipe (2).

2, glass fibre reinforced plastics insulation composite tube according to claim 1, it is characterized in that: thermal insulation layer is polyurethane foam (4), and anticorrosive coat (3) is glass fibre reinforced plastics or plastics.