CN2562022Y

CN2562022Y - Multilayer thermal insulative GFRP composite pipelines

Info

Publication number: CN2562022Y
Application number: CN 02203773
Authority: CN
Inventors: 王国云; 庄延鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-01
Filing date: 2002-02-01
Publication date: 2003-07-23
Anticipated expiration: 2012-02-01

Abstract

The utility model relates to a glass fiber reinforced plastics multilayer heat insulation composite pipe, which is aimed to solve the problems of low intensity and poor heat preservation in the normal pipe. The utility model uses a heat preservation layer surrounded with pore, bubble and foam as the first layer, the second layer is glass fiber reinforced plastics, and more than two layers are laid at intervals in above sequence. Since the pipe is wrapped by the glass-fiber reinforced plastics and a plurality of the heat preservation layers are laid at intervals, the insulation effect of the heat preservation layers are excellent, and the multi-layer spacing brings better effect; the glass fiber reinforced plastics has high intensity and heat insulation function by being arranged wih spacing. Therefore, the present composite pipe is formed with better heat preservation effect and higher intensity and also with better anticorrosion performance, thus prolonging the service life of the pipe, reducing the maintenance cost of the enterprises and enhancing comprehensive benefits.

Description

Glass fibre reinforced plastics multilayer insulation heat-preserving composite pipeline

(1) technical field:

The utility model relates to a kind of glass fibre reinforced plastics multilayer insulation heat-preserving composite pipeline.

(2) background technique:

Along with oilfield construction enters the middle and later periods, Cut of Oilfield improves constantly at present, and the working environment of pipeline is abominable day by day simultaneously, to having higher requirement in the protection quality and the working life of pipeline.The oil field adopts yellow jacket to coat hard polyurethane foam plastic, thermal-insulation pipeline mostly at present, and the insulation of the glass wool of employing is also arranged.Facts have proved that yellow jacket coats hard polyurethane foam plastic, thermal-insulation pipeline, pipeline occurs eccentric; Outer clipping layer is frangible, and polyamine fat vacuole foam easily absorbs water, and is not incubated; There is outer no intensity in the glass wool insulation, influences environment and easily suction, thereby influences the shortcoming that thermal insulation property is given full play to.

(3) model utility content:

Technical problem to be solved in the utility model is at the problem that exists in the background technique, and a kind of glass fibre reinforced plastics multilayer insulation heat-preserving composite pipeline that makes pipeline intensity height placed in the middle, outer and better heat preservation is provided.

The invention for solving the technical problem can reach by following technical solution: first layer is the thermal insulation layer that hole, bubble, foam are arranged on pipeline, and the second layer is a glass fibre reinforced plastics, is shaped on more than 2 layers by this preface.

In such scheme, thermal insulation layer can be at interval more than 3 layers, and outermost surface is a frp layer;

Form this multiple tube by above scheme, thermal insulation layer high insulating effect wherein, glass fibre reinforced plastics intensity height, two layers of space multilayer can reach purpose of design.

The utility model is compared with the above-mentioned background technology can have following beneficial effect: because pipeline is surrounded by glass fibre reinforced plastics outward, and thermal insulation layer space multilayer, thermal insulation layer high insulating effect wherein, the multi-layer heat preserving effect is better at interval; Glass fibre reinforced plastics intensity height, the space has heat-blocking action, and constituting the existing higher heat insulation effect of this multiple tube also has higher intensity, also has higher antiseptic property simultaneously, prolongs the pipeline spreadable life, and applying unit reduces maintenance cost, and comprehensive benefit is improved.

(4) description of drawings:

Accompanying drawing is the utility model sectional view.

(5) embodiment:

Below in conjunction with the drawings and specific embodiments will the utility model is described in further detail:

Shown in accompanying drawing, the thermal insulation layer 2 that is wound with hole, bubble, foam on pipeline 1 is as first layer, and the second layer is a glass fibre reinforced plastics 5,, be shaped on more than 2 layers by this program.

In such scheme, thermal insulation layer can be at interval more than 3 layers (2,3,4), wherein between interlayer (5,6,7) be frp layer, and outermost surface is a glass fibre reinforced plastics 7.Promptly the 3rd layer is that thermal insulation layer is a frp layer 6 for 3, the four layers, and layer 5 also is a thermal insulation layer 4, and layer 6 is a frp layer 7, and outermost surface also is a frp layer 8, has layer glass steel layer (7,8) outside the outermost thermal insulation layer 4; On pipeline 1, press this multiple tube of sequentially built of thermal insulation layer, frp layer thus.

Claims

1, a kind of glass fibre reinforced plastics multilayer insulation heat-preserving composite pipeline that relates to contains thermal insulation layer, it is characterized in that: it is the thermal insulation layer (2) that hole, bubble, foam are arranged that pipeline (1) is gone up first layer, and the second layer is glass fibre reinforced plastics (5), has more than 2 layers by this preface.

2, multiple tube according to claim 1 is characterized in that: thermal insulation layer can have three layers above.

3, according to right 1 or 2 described multiple tubes, it is characterized in that: outermost surface is a frp layer.