Thermal insulation pipe with anti-corrosion function

By designing the inner and outer tube structures and using an antibacterial layer, the problem of bacterial and algae growth in the insulation pipes has been solved, improving the flow rate and corrosion resistance, extending the service life, and enhancing the pressure resistance.

CN223825891UActive Publication Date: 2026-01-23HEILONGJIANG JINHAO ENERGY-SAVING THERMAL INSULATION BUILDING MATERIALS GRP CO LTD
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Patent Information

Application Number
CN202520382951.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-23
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing insulated pipes are prone to bacterial and algae growth during long-term use, which leads to a decrease in the flow rate of substances inside the pipes and blockages, increasing the difficulty of inspection and maintenance.

Method used

The inner and outer tubes are coaxially arranged. The outer surface of the inner tube is provided with a wear-resistant layer. Between the outer and inner tubes, there are sequentially provided a heat insulation layer, a connecting layer, and a support layer. The inner side of the inner tube is provided with an anti-corrosion layer and an antibacterial layer. The antibacterial layer is coated with nano-titanium dioxide. The outer tube is made of polyethylene material, and the inner tube is made of heat-resistant polyethylene material. Combined with a rubber anti-corrosion layer, the anti-corrosion performance is improved.

Benefits of technology

This achieves the goal of preventing scale buildup on the inner wall of the insulation pipe, preventing the growth of bacteria and algae, increasing the material flow rate, extending service life, and enhancing pressure resistance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223825891U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of thermal insulation pipes, and discloses a thermal insulation pipe with an anti-corrosion function, which comprises an inner pipe, the outer pipe is arranged on the outer side of the inner pipe in a sleeving manner; the inner pipe and the outer pipe are coaxially arranged, and a wear-resistant layer is arranged on the outer surface of the inner pipe; a heat preservation layer, a connecting layer and a supporting layer are sequentially arranged between the outer pipe and the inner pipe from outside to inside, an anti-corrosion layer and an antibacterial layer are sequentially arranged on the inner side of the inner pipe, the outer pipe is made of a polyethylene material, and the outer surface of the outer pipe is fixedly coated with the wear-resisting layer which is made of a carbon fiber material. The anti-bacterial layer is arranged, so that the inner wall of the heat preservation pipe does not scale, bacteria and algae are not bred, the flowing rate of substances in the pipe is increased, meanwhile, the anti-corrosion layer made of rubber is arranged, the anti-corrosion performance of the pipe is improved, the service life of the heat preservation pipe is prolonged, and the supporting layer and the connecting layer are arranged, so that the pressure resistance of the pipe is further improved; and the whole pipeline has a good practical effect.
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Description

Technical Field

[0001] This utility model relates to the field of thermal insulation pipe technology, specifically a thermal insulation pipe with anti-corrosion function. Background Technology

[0002] Thermal insulation pipe is short for heat-insulated pipeline. Thermal insulation pipe is used for the transportation of liquids, gases and other media, and is used in thermal insulation projects for pipelines in petroleum, chemical, aerospace, military, district heating, central air conditioning and municipal industries.

[0003] Existing insulation pipes are prone to bacterial and algae growth during long-term use, which can reduce the flow rate of substances inside the pipes and even cause internal dirt to settle, resulting in blockages and increasing the difficulty of inspection and maintenance.

[0004] Therefore, a heat-insulating pipe with anti-corrosion function is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a heat-insulating pipe with anti-corrosion function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating pipe with anti-corrosion function, comprising an inner pipe;

[0007] And an outer tube fitted over the outer side of the inner tube;

[0008] The inner tube and the outer tube are coaxially arranged, and the outer surface of the inner tube is provided with a wear-resistant layer;

[0009] An insulation layer, a connecting layer, and a support layer are sequentially arranged between the outer tube and the inner tube from the outside to the inside. An anti-corrosion layer and an antibacterial layer are sequentially arranged on the inner side of the inner tube.

[0010] Preferably, the outer tube is made of polyethylene material and the thickness of the outer tube is 6 mm.

[0011] Preferably, the wear-resistant layer is fixedly wrapped around the outer surface of the outer tube, the wear-resistant layer is made of carbon fiber material, and the thickness of the wear-resistant layer is 2mm.

[0012] Preferably, the outer surface of the insulation layer is fixedly connected to the inner wall of the outer tube, the insulation layer is made of aerogel felt, and the thickness of the insulation layer is 1 mm.

[0013] Preferably, the outer surface of the connecting layer is fixedly connected to the inner wall of the insulation layer, the connecting layer is made of high-density polyethylene material, and the thickness of the connecting layer is 1 mm.

[0014] Preferably, the inner surface of the support layer is fixedly connected to the surface of the inner pipe, and the outer surface of the support layer is fixedly connected to the inner surface of the connecting layer. The support layer is composed of several steel wires arranged in a diamond shape and connected to each other. By setting the support layer and the connecting layer, the pressure resistance of the pipeline is further improved, so that the overall pipeline has a good practical effect.

[0015] Preferably, the inner tube is made of heat-resistant polyethylene material and has a thickness of 7mm. The outer surface of the anti-corrosion layer is fixedly connected to the inner wall of the inner tube. The anti-corrosion layer is made of rubber material and has a thickness of 1mm. The rubber anti-corrosion layer improves the anti-corrosion performance of the pipeline and extends the service life of the insulated pipe.

[0016] Preferably, the antibacterial layer is made by coating nano-titanium dioxide on the inner wall of the anti-corrosion layer. By setting the antibacterial layer, the inner wall of the heat-insulating pipe does not accumulate scale and does not breed bacteria and algae.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the heat-insulating pipe with anti-corrosion function can...

[0018] By incorporating an antibacterial layer, the inner wall of the insulated pipe is free from scaling, bacteria, and algae growth, thus increasing the flow rate of substances within the pipe. Simultaneously, a rubber anti-corrosion layer enhances the pipe's corrosion resistance and extends its service life. Furthermore, the inclusion of support and connecting layers further improves the pipe's pressure resistance, resulting in a highly effective overall system. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial three-dimensional sectional view of the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged view of area A in the middle.

[0022] In the diagram: 1 Outer tube, 2 Inner tube, 3 Wear-resistant layer, 4 Insulation layer, 5 Connecting layer, 6 Supporting layer, 7 Anti-corrosion layer, 8 Antibacterial layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figures 1-3 This utility model provides a technical solution: a heat-insulating pipe with anti-corrosion function, including an inner pipe 2;

[0026] And the outer tube 1 fitted outside the inner tube 2;

[0027] The inner tube 2 and the outer tube 1 are coaxially arranged, and the outer surface of the inner tube 2 is provided with a wear-resistant layer 3;

[0028] An insulation layer 4, a connecting layer 5, and a support layer 6 are sequentially arranged between the outer tube 1 and the inner tube 2 from the outside to the inside. An anti-corrosion layer 7 and an antibacterial layer 8 are sequentially arranged on the inner side of the inner tube 2.

[0029] The outer pipe 1 is made of polyethylene material and has a thickness of 6mm. The wear-resistant layer 3 is fixedly wrapped on the outer surface of the outer pipe 1. The wear-resistant layer 3 is made of carbon fiber material and has a thickness of 2mm. The outer surface of the insulation layer 4 is fixedly connected to the inner wall of the outer pipe 1. The insulation layer 4 is made of aerogel felt and has a thickness of 1mm. The outer surface of the connecting layer 5 is fixedly connected to the inner wall of the insulation layer 4. The connecting layer 5 is made of high-density polyethylene material and has a thickness of 1mm. By setting the support layer 6 and the connecting layer 5, the pressure resistance of the pipeline is further improved, so that the overall pipeline has a good practical effect.

[0030] The inner surface of the support layer 6 is fixedly connected to the surface of the inner tube 2, and the outer surface of the support layer 6 is fixedly connected to the inner surface of the connecting layer 5. The support layer 6 is composed of several steel wires arranged in a diamond shape and connected to each other. The inner tube 2 is made of heat-resistant polyethylene material with a thickness of 7mm. The outer surface of the anti-corrosion layer 7 is fixedly connected to the inner wall of the inner tube 2. The anti-corrosion layer 7 is made of rubber material. The rubber anti-corrosion layer 7 improves the anti-corrosion performance of the pipeline and extends the service life of the insulation pipe. The anti-corrosion layer 7 has a thickness of 1mm. The antibacterial layer 8 is made by coating the inner wall of the anti-corrosion layer 7 with nano titanium dioxide. By setting the antibacterial layer 8, the inner wall of the insulation pipe does not scale, does not breed bacteria and algae, and improves the flow rate of substances in the pipeline.

[0031] During use, the antibacterial layer 8 prevents scaling and the growth of bacteria and algae on the inner wall of the insulated pipe, thereby increasing the flow rate of substances within the pipe. At the same time, the rubber anti-corrosion layer 7 enhances the corrosion resistance of the pipe and extends the service life of the insulated pipe. The support layer 6 and the connecting layer 5 further improve the pressure resistance of the pipe, resulting in a well-functioning overall pipe system.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating pipe with anti-corrosion function, comprising an inner pipe (2); And an outer tube (1) sleeved on the outside of the inner tube (2); Its features are: The inner tube (2) and the outer tube (1) are coaxially arranged, and the outer surface of the inner tube (2) is provided with a wear-resistant layer (3); The outer tube (1) and the inner tube (2) are provided with an insulation layer (4), a connecting layer (5) and a support layer (6) from the outside to the inside. The inner tube (2) is provided with an anti-corrosion layer (7) and an antibacterial layer (8) from the inside.

2. The heat-insulating pipe with anti-corrosion function according to claim 1, characterized in that: The outer tube (1) is made of polyethylene material and has a thickness of 6 mm.

3. The heat-insulating pipe with anti-corrosion function according to claim 1, characterized in that: The wear-resistant layer (3) is fixedly covered on the outer surface of the outer tube (1). The wear-resistant layer (3) is made of carbon fiber material and has a thickness of 2 mm.

4. The heat-insulating pipe with anti-corrosion function according to claim 3, characterized in that: The outer surface of the insulation layer (4) is fixedly connected to the inner wall of the outer tube (1). The insulation layer (4) is made of aerogel felt and has a thickness of 1 mm.

5. A heat-insulating pipe with anti-corrosion function according to claim 4, characterized in that: The outer surface of the connecting layer (5) is fixedly connected to the inner wall of the insulation layer (4). The connecting layer (5) is made of high-density polyethylene material and has a thickness of 1 mm.

6. A heat-insulating pipe with anti-corrosion function according to claim 5, characterized in that: The inner surface of the support layer (6) is fixedly connected to the surface of the inner tube (2), and the outer surface of the support layer (6) is fixedly connected to the inner surface of the connecting layer (5). The support layer (6) is composed of several steel wires arranged in a rhombus and connected to each other.

7. The heat-insulating pipe with anti-corrosion function according to claim 1, characterized in that: The inner tube (2) is made of heat-resistant polyethylene material and has a thickness of 7 mm. The outer surface of the anti-corrosion layer (7) is fixedly connected to the inner wall of the inner tube (2). The anti-corrosion layer (7) is made of rubber material and has a thickness of 1 mm.

8. A heat-insulating pipe with anti-corrosion function according to claim 7, characterized in that: The antibacterial layer (8) is made by coating nano-titanium dioxide on the inner wall of the anti-corrosion layer (7).