CN107606335A - PP‑R hot and cold water supply pipe - Google Patents

Abstract

The invention provides a PP-R cold and hot water supply pipe, which includes a pipe body composed of a PP-R inner layer and a PP-R outer layer, and the PP-R inner layer and the PP-R outer layer are sequentially arranged from the inside to the outside Insulation layer, reinforcement layer, PP‑R inner layer is coated with an antibacterial layer; the reinforcement layer is composed of an inner mesh layer, an outer mesh layer, and an arc-shaped support frame in the axial direction between the inner mesh layer and the outer mesh layer The gap between the arc-shaped support frame is oppositely arranged, and the arc-shaped top and arc-shaped feet are respectively fixed in contact with the mesh layer on the opposite side; the reinforcing layer is vacuum-treated or filled with sound-insulating medium. The PP-R cold and hot water supply pipe proposed by the present invention has good mechanical strength and thermal insulation and antifreeze performance.

Description

PP-R hot and cold water supply pipe

technical field

The invention relates to the technical field of water supply pipes, in particular to PP-R cold and hot water supply pipes.

Background technique

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.

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 The inorganic particles will make the impact resistance of PPR pipes deteriorate, so how to improve the impact resistance and strength of PPR pipes has become an urgent problem to be solved.

Contents of the invention

The invention proposes a PP-R cold and hot water supply pipe, which has good mechanical strength and thermal insulation and antifreeze performance.

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention solves the above-mentioned problems through the following technical solutions:

The PP-R cold and hot water supply pipe includes a pipe body composed of a PP-R inner layer and a PP-R outer layer. Between the PP-R inner layer and the PP-R outer layer, an insulation layer, Reinforcing layer, the inner side of the PP-R inner layer is coated with an antibacterial layer; the reinforcing layer is composed of an inner mesh layer, an outer mesh layer, and an arc-shaped support frame in the axial direction between the inner mesh layer and the outer mesh layer; the The gaps between the arc-shaped support frames are arranged facing each other, and the arc-shaped top and arc-shaped feet are respectively in contact with and fixed to the mesh layer on the opposite side; the reinforcing layer is vacuum-treated or filled with sound-insulating medium.

In the above scheme, an insulation layer is set between the PP-R inner layer and the PP-R outer layer to reduce the influence of temperature on the pipe body and the fluid in the pipe, and to overcome the deformation or rupture of the pipe; the double-layer mesh of the reinforcement layer And the design of the arc-shaped support frame can further improve the compressive strength and mechanical stability of the pipe body; the reinforcement layer can be vacuum-treated or filled with sound-insulating medium to achieve the effect of noise reduction.

In order to achieve a better thermal insulation effect, the thermal insulation layer is a rubber-plastic sponge layer or a tile layer, and the rubber-plastic sponge material and the tile material have better thermal insulation functions.

Further, the tile layer is made of polyurethane tiles or calcium silicate tiles.

In order to better ensure the environmental protection and sanitation of the transported fluid and reduce the growth of scale bacteria, the antibacterial layer is a nano-silver ion antibacterial coating.

In order to further improve the mechanical strength and compressive strength of the pipe body, the inner mesh layer, the outer mesh layer, and the arc-shaped support frame are all metal mesh structures.

Advantage and effect of the present invention are:

1. The invention adds an insulation layer on the basis of the traditional water supply pipe; the insulation layer can overcome the problem of poor insulation effect of the pipeline, and overcome the problem of deformation and rupture of the pipeline due to the water temperature in the pipeline being swollen by external freezing and freezing;

2. The invention adds a reinforcement layer on the basis of the traditional water supply pipe, and the double-layer mesh design of the reinforcement layer can further improve the compressive strength of the pipe body;

3. The reinforced layer is vacuum treated or filled with sound-insulating medium, which can achieve the effect of noise reduction and overcome the noise problem generated by the fluid in the pipeline;

3. An antibacterial layer is set on the inner side of the pipe body, which can better ensure the environmental protection and sanitation of the conveyed fluid and reduce the growth of scale bacteria.

Description of drawings

Fig. 1 is a structural schematic diagram of a PP-R cold and hot water supply pipe;

Fig. 2 is a sectional view of a PP-R cold and hot water supply pipe.

Drawing number identification: 1. Antibacterial layer, 2. PP-R inner layer, 3. Insulation layer, 4. Reinforcing layer, 4-1, Inner mesh layer, 4-2, Outer mesh layer, 4-3, Arc support Frame, 5, PP-R outer layer.

detailed description

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

The PP-R cold and hot water supply pipe described in this embodiment is composed of antibacterial layer 1, PP-R inner layer 2, heat preservation layer 3, reinforcement layer 4, and PP-R outer layer 5 from inside to outside, as shown in 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.

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 between the inner net layer 4-1 and the outer net layer 4-2, and the gap between the adjacent arc-shaped support frames 4-3 is oppositely arranged, and the arc-shaped top and the arc-shaped feet are connected to the opposite side respectively. The net layer contact is fixed, as shown in accompanying drawing 2.

In the reinforcing layer 4, the arc-shaped support frame 4-3 is filled with sound-insulating medium, so that the pipe body has a certain sound-absorbing and noise-reducing function. The pressure resistance, thermal insulation and sound-absorbing type of the water supply pipe obtained by the above-mentioned structure are greatly improved.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and modifications to these embodiments still fall within the protection scope of the present invention.

Claims (5)

1. PP-R cold and hot water supply pipe, including the pipe body composed of PP-R inner layer (2) and PP-R outer layer (5), characterized in that: the PP-R inner layer (2) and PP- Between the R outer layers (5), an insulation layer (3) and a reinforcement layer (4) are sequentially arranged from the inside to the outside, and the inner side of the PP-R inner layer (2) is coated with an antibacterial layer (1); the reinforcement layer ( 4) An arc-shaped support frame ( 4-3) composition; the gap between the arc-shaped support frame (4-3) is oppositely arranged, and the arc-shaped top and arc-shaped feet are respectively fixed in contact with the mesh layer on the opposite side; the reinforcing layer (4) is vacuum-treated or filled Soundproofing medium. 2. The PP-R hot and cold water supply pipe according to claim 1, characterized in that: the insulation layer (3) is a rubber-plastic sponge layer or a tile layer. 3. The PP-R cold and hot water supply pipe according to claim 2, characterized in that: the tile layer is polyurethane tile or calcium silicate tile. 4. The PP-R hot and cold water supply pipe according to claim 1, characterized in that: the antibacterial layer (1) is a nano-silver ion antibacterial coating. 5. The PP-R cold and hot water supply pipe according to claim 1, characterized in that: the inner mesh layer (4-1), the outer mesh layer (4-2), and the arc support frame (4-3) All are metal mesh structure.