CN202302359U

CN202302359U - PP-R (Polypropylene random) composite pipe

Info

Publication number: CN202302359U
Application number: CN2011204056614U
Authority: CN
Inventors: 郑祥义
Original assignee: SHANGHAI ZHONGSU PIPE INDUSTRY Co Ltd
Current assignee: SHANGHAI ZHONGSU PIPE INDUSTRY Co Ltd
Priority date: 2011-10-21
Filing date: 2011-10-21
Publication date: 2012-07-04
Anticipated expiration: 2021-10-21

Abstract

The utility model relates to a PP-R (polypropylene random) composite pipe, belonging to the technical field of conveying pipeline. The PP-R composite pipe is composed of three layers, namely, a PP-R inner-layer pipe inner layer, a glass fiber net middle layer, and a PP-R outer-layer pipe outer layer. The PP-R composite pipe is characterized in that the glass fiber net is wound on the wall of the PP-R inner-layer pipe; and the PP-R outer-layer pipe is coated on the surfaces of the PP-R inner-layer and the glass fiber net. The PP-R composite pipe has the beneficial effects that: the structure is simple; the manufacturing is easy; and due to the arrangement of the glass fiber net composited between the PP-R inner-layer pipe and the PP-R outer-layer pipe, the pressure resistance of the pipe body is enhanced, and the expansion coefficient is reduced, so that the pipe body has excellent stability.

Description

A kind of PP-R composite pipe

Technical field

The utility model relates to the conveyance conduit technical field, especially relates to a kind of PP-R composite pipe.

Background technique

Along with the continuous development and the progress of society, in sewerage system, plastic tube has progressively replaced traditional piping materials such as cast iron tube and Coating Steel Pipe; Become main flow and use tubing, plastic tube is compared with traditional piping material, has in light weight; Corrosion-resistant, resistance to water-flow is little, energy saving; Simple installation is rapid, the low significant advantage that waits of cost.PP-R is to being three type PA tubes again, adopts gas-phase copolymerization technology to make 5% left and right sides PE evenly polymerization (random copolymerization) and become pipeline material of new generation randomly in the molecular chain of PP.The characteristics such as in light weight except having, corrosion-resistant, non-scaling, long service life; Also have advantages such as nontoxic, heat preservation energy-saving, good heat resistance, recyclable utilization again; But the PP-R pipe is easy to generate distortion in hot environment; Compressive strength is low, can't place for a long time under the high temperature condition to use, and therefore can't be applicable in hot water pipeline or the solar energy system.Therefore a kind of appearance with high temperature resistant, that compressive strength is big compound PP-R pipe is necessary.

The model utility content

The utility model is to provide a kind of PP-R composite pipe high temperature resistant, that compressive strength is big that has for solving the problems of the technologies described above.

The technical problem that the utility model solved adopts following technological scheme to realize:

A kind of PP-R composite pipe; Constitute by three-decker is compound; Internal layer is the PP-R inner tube, and the mesosphere is a glass fiber net, and skin is the PP-R external pipe; It is characterized in that: said glass fiber net is wrapped on the said PP-R inner tube tube wall, and said PP-R external pipe is coated on the outer surface of said PP-R inner tube and said glass fiber net.

The beneficial effect that the utlity model has: simple in structure, easily manufactured, owing between PP-R inner tube and PP-R external pipe, be compounded with the layer of glass fiber net, strengthened the crushing resistance of body, reduce the expansion coefficient of body, make body have good stable property.

Description of drawings

Fig. 1 is the utility model: a kind of structural representation of PP-R composite pipe;

Fig. 2 is the utility model: a kind of cross section structure schematic representation of PP-R composite pipe.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

With reference to shown in Figure 1, a kind of PP-R composite pipe constitutes by three-decker is compound; Internal layer is a PP-R inner tube 1, and the mesosphere is a glass fiber net 2, and skin is a PP-R external pipe 3; Glass fiber net 2 is wrapped on PP-R internal layer 1 tube wall, and PP-R external pipe 3 is coated on the outer surface of PP-R inner tube 1 and glass fiber net 2.

Owing between PP-R inner tube 1 and PP-R external pipe 3, be compounded with layer of glass fiber net 2, strengthened the crushing resistance of body, reduce the expansion coefficient of body, make body have good stable property.

More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. PP-R composite pipe; Constitute by three-decker is compound; Internal layer is the PP-R inner tube, and the mesosphere is a glass fiber net, and skin is the PP-R external pipe; It is characterized in that: said glass fiber net is wrapped on the said PP-R inner tube tube wall, and said PP-R external pipe is coated on the outer surface of said PP-R inner tube and said glass fiber net.