CN209180511U - A PE water supply pipe - Google Patents

Abstract

The utility model discloses a PE water supply pipe. The water supply pipe body comprises a high temperature resistant heat insulation coating layer, a PE inner layer, a heat preservation layer, a PE outer layer and a composite protective layer which are sequentially stacked from the inside to the outside. The insulation layer is a rigid polyurethane foam plastic layer, the PE outer layer is provided with a steel mesh reinforcement layer, and the composite protective layer includes a first anti-corrosion layer, a second anti-corrosion layer and a wear-resistant layer stacked in sequence from the inside to the outside. , the first anti-corrosion layer is a glass fiber cloth layer, the second anti-corrosion layer is an anti-corrosion paint layer, and the wear-resistant layer is a polyurethane wear-resistant paint layer. Compared with the prior art, the beneficial effects of the utility model are as follows: the inner wall is coated with high-temperature heat-resistant heat-insulating coating, which improves the high-temperature resistance of the PE water supply pipe; the double-layer PE layer is provided, which effectively improves the corrosion resistance of the water supply pipe It is durable and prolongs the service life; the PE outer layer is equipped with a steel mesh reinforcement layer to improve the structural strength of the pipe.

Description

A PE water supply pipe

technical field

The utility model relates to the field of water pipes, in particular to a PE water supply pipe.

Background technique

my country's plastic pipes are developing rapidly, and their quality is constantly improving. Among them, polyethylene PE pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas pipelines, electrical and telecommunications protection due to their unique characteristics. Casing, industrial pipe, agricultural pipe, etc. It is mainly used in urban water supply, urban gas supply and farmland irrigation and other fields. Because of its non-rusting properties, it is an ideal pipe material to replace ordinary iron water supply pipes. PE water supply pipe implements the national product standard: GB/T13663-2000 "Polyethylene (PE) pipes for water supply".

The water supply pipe in the prior art has the problem of being deformed, twisted or broken due to the pressure of the water in the water pipe during use, thereby affecting its service life.

Utility model content

The utility model provides a corrosion-resistant and wear-resistant PE water supply pipe.

In order to solve the problems of the technologies described above, the technical solution of the utility model is:

A PE water supply pipe, characterized in that: the water supply pipe body includes a high temperature resistant heat insulation coating layer, a PE inner layer, a heat insulation layer, a PE outer layer and a composite protective layer that are sequentially stacked from the inside to the outside. The high-temperature thermal insulation coating layer is adhesively connected to the PE inner layer. The thermal insulation layer is a rigid polyurethane foam plastic layer. The PE outer layer is provided with a steel mesh reinforcement layer. Layers are integrally formed, and the composite protective layer includes a first anti-corrosion layer, a second anti-corrosion layer and a wear-resistant layer that are sequentially stacked from the inside to the outside. The first anti-corrosion layer is a glass fiber cloth layer, and the second anti-corrosion layer It is an anti-corrosion paint layer, and the wear-resistant layer is a polyurethane wear-resistant paint layer.

Further, the PE inner layer is a low-density polyethylene layer, and the PE outer layer is a high-density polyethylene layer.

Further, the high-temperature-resistant and heat-insulating coating layer is connected to the PE inner layer through a high-temperature inorganic adhesive.

Further, the steel mesh reinforcement layer is made of stainless steel.

Further, the thickness ratio of the first anti-corrosion layer, the second anti-corrosion layer and the wear-resistant layer is 3:2:3.

Compared with the prior art, the beneficial effect of the utility model is: because the inner wall is coated with high-temperature-resistant heat-insulating coating, it can suppress the heat radiation and heat conduction of high-temperature objects and low-temperature objects, and improve the high-temperature resistance of PE water supply pipes; Because of the double PE layer, the corrosion resistance of the water supply pipe is effectively improved and the service life is prolonged; because the PE outer layer is equipped with a steel mesh reinforcement layer, the structural strength of the pipe can be improved.

Description of drawings

Fig. 1 is a sectional view of the utility model;

In the figure: 1. High temperature resistant heat insulation coating layer; 2. PE inner layer; 3. Insulation layer; 4. PE outer layer; 5. First anti-corrosion layer; 6. Second anti-corrosion layer; 7. Wear-resistant layer.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model will be further described. It should be noted here that the descriptions of these implementations are used to help understand the utility model, but are not intended to limit the utility model. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

As shown in Figure 1, a PE water supply pipe, the water supply pipe body includes a high temperature resistant heat insulation coating layer 1, a PE inner layer 2, an insulation layer 3, a PE outer layer 4 and a composite As for the protective layer, the PE inner layer 2 is a low-density polyethylene layer, and the PE outer layer 4 is a high-density polyethylene layer.

The high temperature resistant heat insulation coating layer 1 and the PE inner layer 2 are adhesively connected, and the high temperature resistant heat insulation coating layer 1 and the PE inner layer 2 are connected by a high temperature inorganic adhesive. The thermal insulation layer 3 is a rigid polyurethane foam plastic layer, and the PE outer layer 4 is provided with a steel wire reinforcement layer, and the steel wire reinforcement layer and the PE outer layer 4 are integrally formed, and the steel wire reinforcement layer is made of stainless steel production. The composite protective layer includes a first anti-corrosion layer 5, a second anti-corrosion layer 6 and a wear-resistant layer 7 stacked in sequence from the inside to the outside, the first anti-corrosion layer 5 is a glass fiber cloth layer, and the second anti-corrosion layer 6 is an anti-corrosion paint layer, the wear-resistant layer 7 is a polyurethane wear-resistant paint layer, and the thickness ratio of the first anti-corrosion layer 5, the second anti-corrosion layer 6 and the wear-resistant layer 7 is 3:2:3.

The insulation layer 3 can also be centrifugal glass wool or foam rubber, and the thickness of the insulation layer 3 is greater than that of the PE inner layer 2 .

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

Claims (5)

1. a kind of PE feed pipe, it is characterised in that: the water supply tube body includes the high temperature resistant being cascading from the inside to the outside Heat insulating coatings layer (1), PE internal layer (2), insulating layer (3), PE outer layer (4) and composite protection layer, the high temperature resistant heat insulation are protected Connection is bonded between thermo-paint layer (1) and PE internal layer (2), the insulating layer (3) is rigid polyurethane foam layer, the PE Steel wire enhancement layer is equipped in outer layer (4), the steel wire enhancement layer and PE outer layer (4) are integrally formed, the composite protection layer It from the inside to the outside include the first erosion resistant coating (5), the second erosion resistant coating (6) and the wearing layer (7) being cascading, first anti-corrosion Layer (5) is fiberglass cloth, and second erosion resistant coating (6) is anticorrosive paint layer, and the wearing layer (7) is polyurethane wear resistant painting The bed of material.

2. a kind of PE feed pipe as described in claim 1, it is characterised in that: the PE internal layer (2) be low density polyethylene layer, PE outer layer (4) is high-density polyethylene layer.

3. a kind of PE feed pipe as described in claim 1, it is characterised in that: the thermostable heat-isolating coating layer (1) with PE internal layer (2) is connected by high temperature inorganic adhesive.

4. a kind of PE feed pipe as described in claim 1, it is characterised in that: the steel wire enhancement layer is by stainless steel material system At.

5. a kind of PE feed pipe as described in claim 1, it is characterised in that: first erosion resistant coating (5), the second erosion resistant coating (6) and the ratio of the thickness of wearing layer (7) is 3:2:3.