Flexible composite high-pressure delivery pipe

A high-pressure delivery pipe, flexible technology, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of easy corrosion, high maintenance costs, and many pipeline joints, and achieve strong wear resistance and corrosion resistance, flow Small number of friction lines, easy to store and transport

CN104141838AInactive Publication Date: 2014-11-12JIANGSU SHENSHI NEW MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flexible composite high-pressure delivery pipe. The flexible composite high-pressure delivery pipe comprises a media transmission layer, at least one enhanced layer and a protective layer which are integrally formed by means of heating and pressurization, the enhanced layers are arranged between the media transmission layer and the protective layer and are arranged as fiber enhanced layers, metal enhanced layers or a combination of the fiber enhanced layers and the metal enhanced layers, the fiber enhanced layers and the metal enhanced layers are of banded structures formed by gel mould coated with hot melt glue, an angle of 50-60 degrees is formed between each of the fiber enhanced layers and the metal enhanced layers and a central axis of the pipe, and the enhanced layers are of a bidirectional fiber band and metal band intersection winding structure comprising a left spiral winding layer and a right spiral winding layer. The flexible composite high-pressure delivery pipe has the advantages of reasonable structural design, high pressure bearing capacity, high resistance to low-temperature impact, small friction coefficient, good flexibility, environmental protection and long service life.
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Description

technical field

[0001] The invention relates to a flexible pipe, in particular to a flexible composite high-pressure conveying pipe, which is mainly used for laying pipelines under special requirements such as wear resistance, corrosion resistance, impact resistance, small friction resistance, and high pressure bearing capacity. Used in oil and gas gathering pipelines, natural gas pipelines and subsea pipelines. Background technique

[0002] Existing pipelines used to transport sewage and corrosive media (such as natural gas containing hydrogen sulfide) generally use steel pipes, steel-plastic composite pipes and ultra-high molecular weight polyethylene composite pipes. The defects of steel pipes are heavy weight, easy corrosion, and long service life. Short; the steel-plastic composite pipe is mainly composed of PE and steel, the main disadvantage is that the pressure bearing capacity is poor, and its scope of application is still limited to buried low-pressure water pipes;...

Examples

Embodiment

[0026] The present invention as figure 1 , figure 2 , image 3 As shown, the structure includes a medium transmission layer, an enhancement layer, and a protection layer. The enhancement layer is provided with two layers, placed between the medium transmission layer and the protection layer, between the medium transmission layer and the enhancement layer, the enhancement layer and the protection layer Bonded together by heat and pressure.

[0027] One layer of the reinforcement layer is a fiber reinforcement layer, and the other layer is a metal reinforcement layer.

[0028] The fiber-reinforced layer and the metal-reinforced layer are belt-shaped structures formed by applying hot-melt adhesive through a rubber mold.

[0029] The fiber-reinforced layer and the metal-reinforced layer are about 54 from the axis of the pipe 0 Angle, fiber braided belt and steel wire rope reinforced belt bidirectional cross-wound structure, composed of left-helical winding layer and right-h...