Square and rectangular pipe with high insulation and corrosion resistance

Abstract

The utility model discloses a square and rectangular tube with high insulation and corrosion resistance, and particularly relates to the technical field of square and rectangular tubes, in the square and rectangular tube, glass fiber reinforced plastic has good insulation performance, and the capability of preventing current from passing through is further improved by adding an insulation layer made of epoxy resin, polyethylene and a ceramic coating. The corrosion-resistant layer comprises silicone rubber, a propylene coating and a galvanized coating and can resist corrosion of chemical substances and environmental conditions to the square tube, the reinforcing layer adopts a metal net and carbon fiber cloth, additional mechanical strength and pressure resistance are provided, the overall structural strength of the square tube is enhanced, and the service life of the square tube is prolonged. The glass fiber reinforced plastic material is light in weight and high in strength, the wear resistance and durability of the square and rectangular pipe are effectively improved by using the carbon fiber cloth and the ceramic coating, the performance and reliability of the square and rectangular pipe can be kept even under extreme conditions under the combined action of design and material selection of all levels, and the composite square and rectangular pipe can be widely applied to electrical and chemical environments.

Description

Technical Field

[0001] The utility model relates to the technical field of square and rectangular tubes, in particular to a square and rectangular tube with high insulation and corrosion resistance. Background Art

[0002] Square tube is a metal tube with a square cross-section and a hollow structure. It is used in various structural and engineering applications. The square tube is named for its square or rectangular cross-section. The cross-section of the square tube can be square or rectangular. This design gives it advantages in load-bearing capacity and shape stability. The hollow interior of the tube wall makes it light in weight, high in strength, and easy to transport and install. It is used in building frames, roof trusses, support structures, etc. Due to its high strength and good stability, it is often used for the support and structure of large-span buildings, and is used in the manufacture of mechanical parts and conveying equipment. It provides good load-bearing capacity and structural stability. As a material for furniture frames, it is favored for its beautiful appearance and strong structure. It is used in garden decoration, guardrails, amusement facilities, etc., and can meet the strength and durability requirements of outdoor environments. Due to its shape characteristics and diverse application scenarios, square tube is one of the common and important materials in the industrial and construction fields, playing an important role in improving structural stability and aesthetics.

[0003] Under the existing technology, square tubes are usually made of metal materials such as steel or aluminum. Ordinary carbon steel square tubes are easily affected by oxygen and water vapor in the air and rust, especially in humid or chemically polluted environments. Metal materials have good conductivity, which means that in some applications it will cause electrical problems or require insulation treatment. In some occasions where long-term exposure to humid, highly acidic or chemically corrosive environments is required, the corrosion resistance of ordinary metal square tubes cannot meet the requirements. In some occasions, materials need to have good insulation properties, such as power equipment, electronic equipment, etc., and the conductivity of ordinary metal square tubes will also become a problem. For this reason, we propose a square tube with high insulation and corrosion resistance to solve the above problems. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A square tube with high insulation and corrosion resistance comprises a glass fiber reinforced plastic rectangular tube, wherein a reinforcing layer for enhancing the structural strength of the glass fiber reinforced plastic rectangular tube is provided inside the glass fiber reinforced plastic rectangular tube, an insulating layer is provided on the outer surface of the glass fiber reinforced plastic rectangular tube, and a corrosion-resistant layer for improving the service life of the glass fiber reinforced plastic rectangular tube is provided on a side of the insulating layer away from the glass fiber reinforced plastic rectangular tube. The glass fiber reinforced plastic rectangular tube, the reinforcing layer, the insulating layer and the corrosion-resistant layer together constitute a square tube body, the reinforcing layer comprises a metal mesh, the metal mesh is arranged inside the wall of the glass fiber reinforced plastic rectangular tube, the metal mesh is arranged in the middle of the wall of the glass fiber reinforced plastic rectangular tube, carbon fiber cloth is adhered on both sides of the metal mesh, the carbon fiber cloth on both sides is symmetrically distributed along the axis of the metal mesh, and the carbon fiber cloth is arranged inside the wall of the glass fiber reinforced plastic rectangular tube.

[0007] Preferably, the insulating layer comprises epoxy resin, polyethylene and ceramic coating.

[0008] Preferably, the epoxy resin is coated on the surface of the glass fiber reinforced plastic rectangular tube, and the epoxy resin is in contact and adhered to the polyethylene away from the end surface of the glass fiber reinforced plastic rectangular tube.

[0009] Preferably, the ceramic coating is arranged on a side of the polyethylene away from the epoxy resin, and the epoxy resin, polyethylene and ceramic coating are arranged and distributed in sequence in a direction away from the glass fiber reinforced plastic rectangular tube.

[0010] Preferably, the corrosion-resistant layer includes silicone rubber, propylene coating and galvanized coating.

[0011] Preferably, the silicone rubber is sleeved and fixed around the glass fiber reinforced plastic rectangular tube, and the silicone rubber is in contact with the glass fiber reinforced plastic rectangular tube through an insulating layer.

[0012] Preferably, the side of the silicone rubber close to the glass fiber reinforced plastic rectangular tube is in contact with and adheres to the ceramic coating, and the side of the silicone rubber away from the ceramic coating is in contact with the propylene coating.

[0013] Preferably, the side of the acrylic coating away from the silicone rubber is in contact with and adheres to the galvanized coating, and the silicone rubber, acrylic coating and galvanized coating are sequentially arranged and distributed along the direction in which the insulating layer is away from the glass fiber reinforced plastic rectangular tube.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] The fiberglass itself has good insulation properties, and the insulating layer of epoxy resin, polyethylene and ceramic coating further improves its ability to prevent the passage of current, effectively protecting equipment and personnel from the risk of electric shock;

[0016] The corrosion-resistant layer includes silicone rubber, acrylic coating and galvanized coating, which can resist the corrosion of square tubes caused by chemicals and environmental conditions, thereby extending their service life and reducing maintenance requirements;

[0017] The reinforcement layer uses metal mesh and carbon fiber cloth to provide additional mechanical strength and compressive resistance, enhance the overall structural strength and rigidity of the square tube, and help it withstand external loads and pressure;

[0018] The fiberglass material itself is lightweight and has high strength, which enables the square tube to reduce the weight of the load and support system while maintaining strength. The use of carbon fiber cloth and ceramic coating effectively improves the wear resistance and durability of the square tube, especially in harsh environments or under frequent use.

[0019] The design and material selection at all levels work together to ensure that the square tube can operate stably for a long time and maintain its performance and reliability even under extreme conditions. The composite square tube is not only widely used in electrical and chemical environments, but also can meet the high requirements of corrosion resistance, insulation and mechanical properties, making it an excellent engineering material choice. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the square tube body of the utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of the glass fiber reinforced plastic rectangular tube of the utility model.

[0022] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Figure 4 This is a schematic diagram of the insulation layer structure of the utility model.

[0024] Figure 5 This is a schematic diagram of the corrosion-resistant layer structure of the utility model.

[0025] In the figure: 1. FRP rectangular tube; 2. Reinforcement layer; 201. Metal mesh; 202. Carbon fiber cloth; 3. Insulation layer; 301. Epoxy resin; 302. Polyethylene; 303. Ceramic coating; 4. Corrosion-resistant layer; 401. Silicone rubber; 402. Acrylic coating; 403. Galvanized coating; 5. Square tube body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example: Figure 1-Figure 5As shown, the utility model provides a square tube with high insulation and corrosion resistance, including a glass fiber reinforced plastic rectangular tube 1, a reinforcing layer 2 for enhancing its own structural strength is provided inside the glass fiber reinforced plastic rectangular tube 1, an insulating layer 3 is provided on the outer surface of the glass fiber reinforced plastic rectangular tube 1, and a corrosion-resistant layer 4 for improving the service life of the glass fiber reinforced plastic rectangular tube 1 is provided on the side of the insulating layer 3 away from the glass fiber reinforced plastic rectangular tube 1. The glass fiber reinforced plastic rectangular tube 1, the reinforcing layer 2, the insulating layer 3 and the corrosion-resistant layer 4 together constitute a square tube body 5, the reinforcing layer 2 includes a metal mesh 201, the metal mesh 201 is arranged inside the wall of the glass fiber reinforced plastic rectangular tube 1, the metal mesh 201 is arranged in the middle of the wall of the glass fiber reinforced plastic rectangular tube 1, carbon fiber cloth 202 is adhered on both sides of the metal mesh 201, and the carbon fiber cloth 202 on both sides is adhered along The metal mesh 201 is symmetrically distributed along the axis, and the carbon fiber cloth 202 is arranged inside the wall of the glass fiber reinforced plastic rectangular tube 1. Glass fiber reinforced plastic is a material composed of glass fiber and resin, with good insulation properties and high corrosion resistance. It is lightweight, high-strength, corrosion-resistant, and has good insulation properties. It is suitable for various chemical and electrical environments. The metal mesh 201 is embedded in the glass fiber reinforced plastic tube wall to provide additional mechanical strength and compressive strength, enhance the overall structural strength and rigidity of the tube, and help the square tube withstand external loads and pressure. The carbon fiber cloth 202 is symmetrically arranged on both sides of the metal mesh 201 to further enhance the tensile strength and durability of the square tube. It is high-strength and lightweight, and can effectively increase the mechanical strength of the square tube while improving wear resistance and durability.

[0028] The insulating layer 3 includes epoxy resin 301, polyethylene 302 and ceramic coating 303. The epoxy resin 301 is coated on the surface of the glass fiber reinforced plastic rectangular tube 1. The end surface of the epoxy resin 301 away from the glass fiber reinforced plastic rectangular tube 1 is in contact with the polyethylene 302 and adheres to the epoxy resin 301. The ceramic coating 303 is arranged on the side of the polyethylene 302 away from the epoxy resin 301. The epoxy resin 301, polyethylene 302 and ceramic coating 303 are arranged in sequence in the direction away from the glass fiber reinforced plastic rectangular tube 1. The epoxy resin 301 is directly coated on the surface of the glass fiber reinforced plastic rectangular tube 1 as the first layer of the insulating layer 3, providing good insulation performance and preventing The current passes through the surface of the square tube, which has good corrosion resistance and can effectively protect the square tube from corrosion by chemical substances. It has good adhesion, ensuring that the insulating layer 3 is tightly bonded to the surface of the square tube. The polyethylene 302 is located on the epoxy resin 301 layer and is in contact and adhered to the epoxy resin 301 layer, providing additional insulation protection and enhancing the square tube's resistance to electrical breakdown. The ceramic coating 303 is located on the outside of the polyethylene 302, away from the side in contact with the epoxy resin 301. It has good thermal and chemical stability, can maintain its performance for a long time, increase the service life of the square tube, and reduce the need for maintenance and replacement.

[0029] In addition, the corrosion-resistant layer 4 includes silicone rubber 401, propylene coating 402 and galvanized coating 403. The silicone rubber 401 is sleeved and fixed around the glass fiber reinforced plastic rectangular tube 1. The silicone rubber 401 around the glass fiber reinforced plastic rectangular tube 1 is in contact with the ceramic coating 303 on the side of the silicone rubber 401 close to the glass fiber reinforced plastic rectangular tube 1. The side of the silicone rubber 401 away from the ceramic coating 303 is in contact with the propylene coating 402. The side of the propylene coating 402 away from the silicone rubber 401 is in contact with the galvanized coating 403 and adheres. The silicone rubber 401, propylene coating 402 and galvanized coating 403 are arranged and distributed in sequence along the direction of the insulating layer 3 away from the glass fiber reinforced plastic rectangular tube 1. The silicone rubber 401 sleeve is used to be fixed around the glass fiber reinforced plastic rectangular tube 1. It is in contact with the surface of the square tube and contacts the insulating layer 3 of the glass fiber reinforced plastic rectangular tube 1 through the insulating layer 3. The side of the silicone rubber 401 close to the surface of the square tube is adhered to the ceramic coating 303, and the side away from the surface of the square tube is adhered to the propylene coating 402, providing excellent sealing and adhesion, ensuring the close combination of the corrosion-resistant layer 4 and the fiberglass square tube. It has good high temperature resistance and chemical resistance, is suitable for long-term use under various environmental conditions, reduces corrosion and moisture intrusion, and extends the service life of the square tube. The propylene coating 402 is located between the silicone rubber 401 and the galvanized coating 403, and the side away from the silicone rubber 401 is adhered to the galvanized coating 403, providing additional corrosion protection to prevent chemicals from eroding the surface of the square tube. The galvanized coating 403 is located on the outside of the propylene coating 402 and is in contact with the propylene coating 402, providing excellent metal protection to prevent the surface of the square tube from being corroded due to electrochemical reactions. The galvanized layer acts as an electrochemical barrier layer to prevent liquids or gases from corroding the metal of the square tube. Its good durability and mechanical strength increase the service life and reliability of the square tube. The silicone rubber 401, propylene coating 402 and galvanized coating 403 each perform their respective functions in this composite corrosion-resistant layer 4. Through different material properties and layer distribution, they jointly protect the fiberglass rectangular tube from chemical corrosion and mechanical damage, ensuring the long-term and stable operation of the square tube.

[0030] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A square tube with high insulation and corrosion resistance, characterized in that: The invention comprises a glass fiber reinforced plastic rectangular tube (1), wherein a reinforcing layer (2) for enhancing the structural strength of the glass fiber reinforced plastic rectangular tube (1) is provided inside the glass fiber reinforced plastic rectangular tube (1), an insulating layer (3) is provided on the outer surface of the glass fiber reinforced plastic rectangular tube (1), and a corrosion-resistant layer (4) for improving the service life of the glass fiber reinforced plastic rectangular tube (1) is provided on a side of the insulating layer (3) away from the glass fiber reinforced plastic rectangular tube (1), wherein the glass fiber reinforced plastic rectangular tube (1), the reinforcing layer (2), the insulating layer (3) and the corrosion-resistant layer (4) together constitute a square tube body (5), wherein the reinforcing layer (2) comprises a metal mesh (201), wherein the metal mesh (201) is provided inside the wall of the glass fiber reinforced plastic rectangular tube (1), wherein the metal mesh (201) is provided in the middle of the wall of the glass fiber reinforced plastic rectangular tube (1), and carbon fiber cloth (202) is adhered to both sides of the metal mesh (201), wherein the carbon fiber cloth (202) on both sides is symmetrically distributed along the axis of the metal mesh (201), and wherein the carbon fiber cloth (202) is provided inside the wall of the glass fiber reinforced plastic rectangular tube (1).

2. The square tube with high insulation and corrosion resistance according to claim 1, characterized in that: The insulating layer (3) comprises epoxy resin (301), polyethylene (302) and ceramic coating (303).

3. The square tube with high insulation and corrosion resistance according to claim 2, characterized in that: The epoxy resin (301) is coated on the surface of the glass fiber reinforced plastic rectangular tube (1), and the epoxy resin (301) is in contact and adhered to the polyethylene (302) away from the end surface of the glass fiber reinforced plastic rectangular tube (1).

4. The square tube with high insulation and corrosion resistance according to claim 2, characterized in that: The ceramic coating (303) is arranged on a side of the polyethylene (302) away from the epoxy resin (301), and the epoxy resin (301), the polyethylene (302) and the ceramic coating (303) are sequentially arranged and distributed in a direction away from the glass fiber reinforced plastic rectangular tube (1).

5. The square tube with high insulation and corrosion resistance according to claim 1, characterized in that: The corrosion-resistant layer (4) comprises silicone rubber (401), an propylene coating (402) and a galvanized coating (403).

6. The square tube with high insulation and corrosion resistance according to claim 5, characterized in that: The silicone rubber (401) is sleeved and fixed around the glass fiber reinforced plastic rectangular tube (1), and the silicone rubber (401) is in contact with the glass fiber reinforced plastic rectangular tube (1) through the insulating layer (3).

7. The square tube with high insulation and corrosion resistance according to claim 5, characterized in that: The side of the silicone rubber (401) close to the glass fiber reinforced plastic rectangular tube (1) is in contact with and adheres to the ceramic coating (303), and the side of the silicone rubber (401) away from the ceramic coating (303) is in contact with the propylene coating (402).

8. The square tube with high insulation and corrosion resistance according to claim 5, characterized in that: The side of the propylene coating (402) away from the silicone rubber (401) is in contact with and adheres to the galvanized coating (403), and the silicone rubber (401), the propylene coating (402) and the galvanized coating (403) are arranged and distributed in sequence along the direction in which the insulating layer (3) is away from the glass fiber reinforced plastic rectangular tube (1).

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