High-precision anti-corrosion welded pipe
By applying multiple layers of protective coating to the outer layer of the welded pipe body, the problems of low durability and poor corrosion resistance in high-temperature and high-thermal environments are solved, and the efficient heat insulation, waterproofing and corrosion resistance of the welded pipe are achieved.
Patent Information
- Application Number
- CN202420747541.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing welded pipes have low durability in high-temperature and high-heat environments, poor corrosion resistance, and are difficult to effectively insulate heat and waterproof corrosion.
By coating the substrate compression-resistant protective coating, high-temperature coating, high-density waterproof coating and corrosion-resistant coating on the outer layer of the welded pipe, the compressive, high-temperature, waterproof and corrosion-resistant properties of the welded pipe are improved.
It significantly improves the durability and service life of welded pipes, and enhances its thermal insulation ability and waterproof and corrosion resistance in high-temperature environments.
Smart Images
Figure CN222650858U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of welded pipes, in particular to a high-precision anti-corrosion welded pipe. Background Art
[0002] Welded steel pipe, also known as welded pipe, is a steel pipe made by welding steel plates or strips after curling and forming. Welded steel pipe has simple production process, high production efficiency, many varieties and specifications, and low equipment investment.
[0003] However, general welded pipes have poor high temperature resistance. When used in high temperature and high heat environment, the surface has no effective insulation or heat insulation ability. After being heated, it is easy to directly conduct heat energy, causing the inside of the welded pipe to be heated, which affects the internal components. In addition, general welded pipes have poor corrosion resistance and are protected by a single layer of anti-corrosion coating. The anti-corrosion depth is poor and the water erosion ability is not good, which causes corrosion on the surface of the welded pipe and affects the service life.
[0004] Therefore, the utility model provides a high-precision anti-corrosion welded pipe, the welded pipe body is coated with a substrate pressure-resistant protective coating, a high-temperature resistant coating, a high-density waterproof coating and an anti-corrosion coating on the outer layer to improve the performance of pressure resistance, damage resistance, high temperature resistance, waterproof erosion and corrosion resistance. Utility Model Content
[0005] The main technical problem solved by the utility model is to provide a high-precision anti-corrosion welded pipe, which can provide high-precision welded pipes for use. The welded pipe body is coated with a substrate pressure-resistant protective coating, a high-temperature resistant coating, a high-density waterproof coating and an anti-corrosion coating on the outer layer to improve the performance of pressure resistance, damage resistance, high temperature resistance, waterproof erosion and corrosion resistance, so that the welded pipe body has high durability and long service life.
[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a high-precision anti-corrosion welded pipe, including a welded pipe body, the welded pipe body is a hollow pipe with openings at both ends and internal communication, the outer layer of the welded pipe body is coated with a substrate pressure-resistant protective coating, a high-temperature resistant coating, a high-density waterproof coating and an anti-corrosion coating, the substrate pressure-resistant protective coating is coated on the outside of the welded pipe body and the substrate pressure-resistant protective coating covers the weld ribs of the welded pipe body, the high-temperature resistant coating is coated on the outside of the substrate pressure-resistant protective coating, the high-density waterproof coating is coated on the outside of the high-temperature resistant coating, the anti-corrosion coating is coated on the outside of the high-density waterproof coating, and the coating thickness of the substrate pressure-resistant protective coating is thicker than the thickness of the high-temperature resistant coating or the thickness of the high-density waterproof coating or the thickness of the anti-corrosion coating.
[0007] In a preferred embodiment of the present invention, the high temperature resistant coating includes a temperature insulation coating and a polymer thermal insulation coating.
[0008] In a preferred embodiment of the utility model, the temperature-insulating coating is coated on the outside of the substrate pressure-resistant protective coating, and the polymer thermal insulation coating is coated on the outside of the temperature-insulating coating.
[0009] In a preferred embodiment of the present invention, the outer side of the anti-corrosion coating is also coated with a protective paint coating.
[0010] The beneficial effects of the utility model are as follows: the utility model can provide high-precision welded pipes for use, and the welded pipe body is coated with a substrate pressure-resistant protective coating, a high-temperature resistant coating, a high-density waterproof coating and an anti-corrosion coating on the outer layer to improve the performance of pressure resistance and damage resistance, high temperature resistance, waterproof erosion and corrosion resistance, so that the welded pipe body has high durability and a long service life. The high-temperature resistant coating is further divided into a thermal insulation coating and a polymer thermal insulation coating to improve the thermal insulation capacity. The polymer thermal insulation coating is arranged on the outside to cut off heat, and the thermal insulation coating is arranged on the inside to block heat. The two groups of coatings are combined into a high-temperature resistant coating to improve the thermal insulation capacity, which has higher applicability and meets the use in high-temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:
[0012] Figure 1 This is a structural schematic diagram of a preferred embodiment of a high-precision anti-corrosion welded pipe of the utility model;
[0013] Figure 2 1 is a schematic structural diagram of a preferred embodiment of the high temperature resistant coating;
[0014] The markings of the components in the attached drawings are as follows: 1. Welded pipe body; 2. Substrate pressure-resistant protective coating; 3. High-temperature resistant coating; 301. Thermal insulation coating; 302. Polymer thermal insulation coating; 4. High-density waterproof coating; 5. Anti-corrosion coating; 6. Protective paint coating. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] See also Figure 1 and Figure 2 , the utility model embodiment includes:
[0017] A high-precision anti-corrosion welded pipe comprises a welded pipe body 1, wherein the welded pipe body 1 is a hollow pipe with openings at both ends and internal communication, wherein the outer layer of the welded pipe body 1 is coated with a substrate pressure-resistant protective coating 2, a high-temperature resistant coating 3, a high-density waterproof coating 4 and an anti-corrosion coating 5, wherein the substrate pressure-resistant protective coating 2 is coated on the outside of the welded pipe body 1 and the substrate pressure-resistant protective coating 2 covers the weld ribs of the welded pipe body, the high-temperature resistant coating 3 is coated on the outside of the substrate pressure-resistant protective coating 2, the high-density waterproof coating 4 is coated on the outside of the high-temperature resistant coating 3, the anti-corrosion coating 5 is coated on the outside of the high-density waterproof coating 4, and the coating thickness of the substrate pressure-resistant protective coating 2 is thicker than the thickness of the high-temperature resistant coating 3 or the thickness of the high-density waterproof coating 4 or the thickness of the anti-corrosion coating 5.
[0018] In addition, the high temperature resistant coating 3 includes a temperature insulation coating 301 and a polymer thermal insulation coating 302 .
[0019] In addition, the temperature-insulating coating 301 is coated on the outside of the substrate pressure-resistant protective coating 2 , and the polymer thermal insulation coating 302 is coated on the outside of the temperature-insulating coating 301 .
[0020] In addition, the outer side of the anti-corrosion coating 5 is also coated with a protective paint coating 6 .
[0021] The product structure of the utility model is that the welded pipe body 1 is a hollow pipe with two ends opened and connected inside, and the outer layer of the welded pipe body 1 is coated with a substrate pressure-resistant protective coating 2, a high-temperature resistant coating 3, a high-density waterproof coating 4 and an anti-corrosion coating 5.
[0022] The substrate pressure-resistant protective coating 2 is coated on the outside of the welded pipe body 1 and covers the weld ribs of the welded pipe body. The high-temperature resistant coating 3 is coated on the outside of the substrate pressure-resistant protective coating 2. The high-temperature resistant coating 3 includes a thermal insulation coating 301 and a polymer thermal insulation coating 302. The thermal insulation coating 301 is coated on the outside of the substrate pressure-resistant protective coating 2, and the polymer thermal insulation coating 302 is coated on the outside of the thermal insulation coating 301.
[0023] The high-density waterproof coating 4 is coated on the outside of the high-temperature resistant coating 3, the anti-corrosion coating 5 is coated on the outside of the high-density waterproof coating 4, the coating thickness of the substrate pressure-resistant protective coating 2 is thicker than the thickness of the high-temperature resistant coating 3 or the thickness of the high-density waterproof coating 4 or the thickness of the anti-corrosion coating 5, and the outside of the anti-corrosion coating 5 is also coated with a protective paint coating 6. The utility model is used as a high-precision welded pipe. The welded pipe body 1 is coated with the substrate pressure-resistant protective coating 2, the high-temperature resistant coating 3, the high-density waterproof coating 4 and the anti-corrosion coating 5 on the outer layer to improve the performance of pressure resistance, anti-breakage, high temperature resistance, waterproof erosion and corrosion resistance, so that the welded pipe body 1 has high durability and long service life. The high-temperature resistant coating 3 is also divided into a thermal insulation coating 301 and a polymer thermal insulation coating 302 to improve the thermal insulation capacity. The polymer thermal insulation coating 302 is arranged on the outside to cut off the heat, and the thermal insulation coating 301 is arranged on the inside to block the heat. The two groups of coatings are combined into a high-temperature resistant coating 3 to improve the thermal insulation capacity, which is more applicable and meets the use in high-temperature environments.
[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A high-precision anti-corrosion welded pipe, comprising a welded pipe body, characterized in that: The welded pipe body is a hollow pipe with openings at both ends and an internal connection. The outer layer of the welded pipe body is coated with a substrate pressure-resistant protective coating, a high-temperature resistant coating, a high-density waterproof coating and an anti-corrosion coating. The substrate pressure-resistant protective coating is coated on the outside of the welded pipe body and the substrate pressure-resistant protective coating covers the weld ribs of the welded pipe body. The high-temperature resistant coating is coated on the outside of the substrate pressure-resistant protective coating, the high-density waterproof coating is coated on the outside of the high-temperature resistant coating, and the anti-corrosion coating is coated on the outside of the high-density waterproof coating. The coating thickness of the substrate pressure-resistant protective coating is thicker than the thickness of the high-temperature resistant coating or the thickness of the high-density waterproof coating or the thickness of the anti-corrosion coating.
2. A high-precision anti-corrosion welded pipe according to claim 1, characterized in that: The high temperature resistant coating includes a temperature insulation coating and a polymer thermal insulation coating.
3. A high-precision anti-corrosion welded pipe according to claim 2, characterized in that: The temperature-insulating coating is coated on the outside of the substrate pressure-resistant protective coating, and the polymer thermal insulation coating is coated on the outside of the temperature-insulating coating.
4. The high-precision anti-corrosion welded pipe according to claim 1, characterized in that: The outer side of the anti-corrosion coating is also coated with a protective paint coating.