Anti-freezing corrosion-resistant PE pipe

Abstract

The utility model provides an anti-freezing corrosion-resistant PE pipe, which belongs to the technical field of PE pipes and comprises a pipe body, the outer wall of the pipe body is sequentially provided with a corrosion-resistant coating layer, a fiber reinforcing layer, a reinforcing layer, a heat preservation layer and a reinforcing corrosion-resistant layer from outside to inside, the corrosion-resistant coating layer is connected with the fiber reinforcing layer through a bonding layer, and the fiber reinforcing layer is connected with the heat preservation layer through a bonding layer. The reinforcing layer is fixedly connected with the heat preservation layer, and the heat preservation layer is fixedly connected with the reinforcing corrosion-resistant layer. The anti-freezing and corrosion-resistant PE pipe solves the problem that an existing PE pipe is poor in anti-freezing effect and corrosion-resistant effect, prolongs the service life of the PE pipe, has the advantages of being environmentally friendly, capable of saving energy and resistant to abrasion, and is suitable for pipeline system construction in various engineering fields. And effective guarantee is provided for safe reliability and continuous and stable operation of pipeline engineering.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipes, in particular to a frost-proof and corrosion-resistant PE pipe. Background Art

[0002] PE pipe is a plastic pipe made of polyethylene and other materials. Generally, the application range of PE pipe water supply pipeline is below 40℃, and it cannot be used for hot water transmission pipeline. Plastic pipe has initially formed a plastic pipe industry mainly composed of polyvinyl chloride pipe, polyethylene (PE) pipe and polypropylene (PP-R) pipe. Among them, polyethylene (PE) pipe is widely used in building water supply, building drainage, buried drainage pipe, building heating, gas transmission and distribution, gas pipeline, electrical and telecommunications protective casing, industrial pipe, agricultural pipe, etc. due to its unique advantages.

[0003] At present, traditional PE pipes are susceptible to frost cracking and corrosion in low-temperature environments, and have poor anti-freeze and corrosion resistance, which affects their service life and safety and cannot meet the usage needs of modern consumers. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a frost-proof and corrosion-resistant PE pipe, which solves the problem that the existing PE pipe has poor antifreeze and corrosion resistance, and improves the service life of the PE pipe. At the same time, it has the characteristics of environmental protection, energy saving and wear resistance. It is suitable for the construction of pipeline systems in various engineering fields, and provides effective guarantee for the safety, reliability and continuous and stable operation of pipeline projects.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A freeze-proof and corrosion-resistant PE pipe comprises a pipe body, wherein the outer wall of the pipe body is provided with a corrosion-resistant coating layer, a fiber reinforcement layer, a strengthening layer, a thermal insulation layer, and a strengthened corrosion-resistant layer in sequence from the outside to the inside, the corrosion-resistant coating layer and the fiber reinforcement layer are connected by an adhesive layer, the strengthening layer and the thermal insulation layer are fixedly connected, and the thermal insulation layer and the strengthened corrosion-resistant layer are fixedly connected.

[0007] Preferably, the corrosion-resistant coating layer is a polyethylene coating, and the polyethylene coating is evenly coated on the outer surface of the pipe body.

[0008] Preferably, the fiber reinforced layer is a continuous fiber layer, and the fiber reinforced layer is used to improve the structural strength of the PE pipe.

[0009] Preferably, reinforcing ribs are evenly distributed inside the reinforcing layer, and the structure of the reinforcing ribs is a cross shape, which is used to improve the compression resistance of the PE pipe.

[0010] Preferably, the thermal insulation layer is provided with an outer antifreeze layer, a vacuum chamber and an inner antifreeze layer in sequence from top to bottom, and the outer antifreeze layer and the inner antifreeze layer are fixedly connected to two sides of the vacuum chamber respectively.

[0011] Preferably, the outer antifreeze layer and the inner antifreeze layer are both made of glass wool.

[0012] Preferably, the reinforced corrosion-resistant layer is a composite structural layer composed of epoxy resin and polyurethane, and the reinforced corrosion-resistant layer is used to improve the corrosion resistance of the inner wall of the PE pipe.

[0013] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0014] The utility model provides an antifreeze and corrosion-resistant PE pipe, comprising a pipe body, the outer wall of the pipe body is sequentially provided with a corrosion-resistant coating layer, a fiber reinforcement layer, a strengthening layer, a thermal insulation layer, and a strengthening corrosion-resistant layer from the outside to the inside, the corrosion-resistant coating layer and the fiber reinforcement layer are connected by an adhesive layer, the strengthening layer and the thermal insulation layer are fixedly connected, and the thermal insulation layer and the strengthening corrosion-resistant layer are fixedly connected. The utility model solves the problem that the existing PE pipe has poor antifreeze and corrosion resistance effects, improves the service life of the PE pipe, and has the characteristics of environmental protection, energy saving, and wear resistance. It is suitable for the construction of pipeline systems in various engineering fields, and provides effective guarantees for the safety, reliability, and continuous and stable operation of pipeline projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a freeze-proof and corrosion-resistant PE pipe of the utility model;

[0017] Figure 2 A schematic diagram of the reinforcement layer structure provided in the first embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the structure of the thermal insulation layer provided in the first embodiment of the utility model;

[0019] Description of reference numerals:

[0020] 1. Pipe body; 2. Corrosion-resistant coating layer; 3. Adhesive layer; 4. Fiber-reinforced layer; 5. Strengthening layer; 6. Insulation layer; 7. Strengthened corrosion-resistant layer; 8. Reinforcement ribs; 9. External antifreeze layer; 10. Vacuum chamber; 11. Internal antifreeze layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The purpose of the utility model is to provide an antifreeze and corrosion-resistant PE pipe, which solves the problem that the existing PE pipe has poor antifreeze and corrosion resistance, increases the service life of the PE pipe, and has the characteristics of environmental protection, energy saving and wear resistance. It is suitable for the construction of pipeline systems in various engineering fields, and provides effective guarantee for the safety, reliability and continuous and stable operation of pipeline projects.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1

[0025] like Figure 1 As shown, the utility model provides an antifreeze and corrosion-resistant PE pipe, including a pipe body 1, the outer wall of the pipe body 1 is provided with a corrosion-resistant coating layer 2, a fiber reinforcement layer 4, a strengthening layer 5, a thermal insulation layer 6, and a strengthened corrosion-resistant layer 7 in sequence from the outside to the inside, the corrosion-resistant coating layer 2 and the fiber reinforcement layer 4 are connected by an adhesive layer 3, the strengthening layer 5 and the thermal insulation layer 6 are fixedly connected, and the thermal insulation layer 6 and the strengthened corrosion-resistant layer 7 are fixedly connected.

[0026] In this embodiment, the corrosion-resistant coating layer 2 is a polyethylene coating, which is evenly coated on the outer surface of the pipe body 1 to reduce the corrosion of the outer wall of the PE pipe by the external environment, thereby increasing the service life of the PE pipe.

[0027] In this embodiment, the fiber-reinforced layer 4 is a continuous fiber layer, and the fiber-reinforced layer 4 is used to improve the structural strength of the PE pipe.

[0028] In this embodiment, if Figure 2 As shown, reinforcing ribs 8 are evenly distributed inside the reinforcing layer 5 , and the structure of the reinforcing ribs 8 is a cross shape, which is used to improve the compression resistance of the PE pipe.

[0029] In this embodiment, if Figure 3 As shown, the insulation layer 6 is provided with an outer antifreeze layer 9, a vacuum chamber 10 and an inner antifreeze layer 11 from top to bottom, and the outer antifreeze layer 9 and the inner antifreeze layer 11 are respectively fixedly connected to the two sides of the vacuum chamber 10. The material of the outer antifreeze layer 9 and the inner antifreeze layer 11 is glass wool, which is used to improve the antifreeze ability of the PE pipe. The purpose of setting the vacuum chamber 10 is to reduce the influence of the external low temperature environment on the PE pipe, thereby improving the antifreeze effect of the PE pipe.

[0030] In this embodiment, the reinforced corrosion-resistant layer 7 is a composite structure layer composed of epoxy resin and polyurethane, and the reinforced corrosion-resistant layer 7 is used to improve the corrosion resistance of the inner wall of the PE pipe.

[0031] Working principle: During processing, the corrosion-resistant coating layer 2 is first attached to the inner wall and outer wall surface of the PE pipe, and then a bonding layer 3 is coated on the surface of the corrosion-resistant coating layer 2 on the inner wall. The bonding layer 3 here can be solid glue or other glue with good bonding ability. The bonding layer 3 is attached to the outer surface of the corrosion-resistant coating layer 2, and then the fiber reinforcement layer 4 is coated under the bonding layer 3. Then, the reinforcement layer 5, the thermal insulation layer 6, and the reinforced corrosion-resistant layer 7 are fixed in sequence by fixing, and the processing and preparation of the PE pipe is completed.

[0032] Therefore, the use of the above-mentioned antifreeze and corrosion-resistant PE pipe solves the problem of poor antifreeze and corrosion resistance of existing PE pipes, improves the service life of PE pipes, and at the same time has the characteristics of environmental protection, energy saving, and wear resistance. It is suitable for the construction of pipeline systems in various engineering fields and provides effective guarantee for the safety, reliability, and continuous and stable operation of pipeline projects.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A frost-proof and corrosion-resistant PE pipe, comprising a pipe body, characterized in that: The outer wall of the pipe body is provided with a corrosion-resistant coating layer, a fiber reinforced layer, a strengthening layer, a thermal insulation layer, and a strengthened corrosion-resistant layer in sequence from the outside to the inside. The corrosion-resistant coating layer and the fiber reinforced layer are connected by an adhesive layer, the strengthening layer and the thermal insulation layer are fixedly connected, and the thermal insulation layer and the strengthened corrosion-resistant layer are fixedly connected.

2. The antifreeze and corrosion-resistant PE pipe according to claim 1, characterized in that: The corrosion-resistant coating layer is a polyethylene coating, and the polyethylene coating is evenly coated on the outer surface of the pipe body.

3. The antifreeze and corrosion-resistant PE pipe according to claim 1, characterized in that: The fiber-reinforced layer is a continuous fiber layer, and the fiber-reinforced layer is used to improve the structural strength of the PE pipe.

4. The antifreeze and corrosion-resistant PE pipe according to claim 1, characterized in that: The reinforcing layer is evenly provided with reinforcing ribs, and the structure of the reinforcing ribs is in a cross shape, which is used to improve the compression resistance of the PE pipe.

5. The antifreeze and corrosion-resistant PE pipe according to claim 1, characterized in that: The thermal insulation layer is provided with an outer antifreeze layer, a vacuum chamber and an inner antifreeze layer in sequence from top to bottom, and the outer antifreeze layer and the inner antifreeze layer are fixedly connected to two sides of the vacuum chamber respectively.

6. The antifreeze and corrosion-resistant PE pipe according to claim 5, characterized in that: The outer antifreeze layer and the inner antifreeze layer are both made of glass wool.

7. The antifreeze and corrosion-resistant PE pipe according to claim 1, characterized in that: The reinforced corrosion-resistant layer is a composite structural layer composed of epoxy resin and polyurethane, and the reinforced corrosion-resistant layer is used to improve the corrosion resistance of the inner wall of the PE pipe.

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