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PP-R cold-hot water supply pipe

A water supply pipe, PP-R technology, applied in the direction of protecting pipes, pipes, rigid pipes through heat insulation, etc., can solve the problems of poor heat preservation effect, freezing and heaving of pipes, and rapid heat dissipation of water pipes, so as to reduce the growth of scale bacteria, Improve the compressive strength and ensure the effect of environmental protection and hygiene

Pending Publication Date: 2018-01-19
GUANGXI JINSHENG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For hot water pipes, water supply pipes with poor thermal insulation effect will dissipate heat quickly, which will cause serious energy waste; Frost heave inside the pipeline, causing deformation or rupture of the pipeline

Method used

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  • PP-R cold-hot water supply pipe
  • PP-R cold-hot water supply pipe

Examples

Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with examples, but the present invention is not limited to these examples.

[0021] The PP-R cold and hot water supply pipe described in this embodiment is composed of antibacterial layer 1, PP-R inner layer 2, thermal insulation layer 3, reinforcement layer 4, and PP-R outer layer 5 from inside to outside, as attached figure 1 shown. The antibacterial layer 1 is coated on the inner side of the PP-R inner layer 2, which can reduce the growth of scale bacteria and ensure sanitation of water supply. The outer side of the PP-R inner layer 2 is an insulating layer 3 composed of polyurethane tiles, which have better thermal insulation properties.

[0022] Reinforcing layer 4 is made up of inner network layer 4-1, outer network layer 4-2, arc support frame 4-3, inner network layer 4-1, outer network layer 4-2, arc support frame 4-3 are Metal mesh structure. The arc-shaped support frame 4-3 is arranged bet...

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Abstract

The invention provides a PP-R cold-hot water supply pipe comprising a pipe body composed of a PP-R inner layer and a PP-R outer layer. A heat preservation layer and a reinforcing layer are sequentially arranged between the PP-R inner layer and the PP-R outer layer from inside to outside, and the inner side of the PP-R inner layer is coated with an antibacterial layer. The reinforcing layer is composed of an inner net layer, an outer net layer and arc-shaped supporting frames arranged between the inner net layer and the outer net layer in the axis direction. The arc-shaped supporting frames areoppositely arranged at intervals, and the arc-shaped tops and the arc-shaped feet make contact with the net layers on the opposite side and are fixed to the net layers on the opposite side correspondingly. The reinforcing layer is vacuum-treated or filled with a sound-insulating medium. The PP-R cold-hot water supply pipe has good mechanical strength and heat preservation and anti-frost performance.

Description

technical field [0001] The invention relates to the technical field of water supply pipes, in particular to PP-R cold and hot water supply pipes. Background technique [0002] The water supply pipe is an indispensable plastic pipe in daily life. The water supply pipe is responsible for the important task of domestic water transportation, and the thermal insulation performance is an important indicator for testing the performance of the water supply pipe. For hot water pipes, water supply pipes with poor thermal insulation effect dissipate heat quickly, causing serious energy waste; Ice buildup and heave inside the pipeline, causing deformation or rupture of the pipeline. [0003] PPR pipes generally have defects of insufficient impact resistance, especially its low-temperature brittleness, which makes it easy to break under impact at low temperatures. Filling PPR pipes with inorganic rigid particles can ensure the strength and rigidity of PPR pipes, but too much filling Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/21F16L59/02F16L59/065F16L57/02
CPCY02A20/20
Inventor 韦俊有
Owner GUANGXI JINSHENG TECH DEV
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