Heat-resistant stainless steel pipe

Abstract

The utility model relates to technical fields discloses a kind of heat-resistant stainless steel pipes, including stainless steel pipe body, the stainless steel pipe inner wall is fixedly connected with heat insulation layer, the heat insulation layer is made of aerogel felt material, the aerogel felt material has extremely low thermal conductivity, heat insulation effect is remarkable, the heat insulation layer inner wall is fixedly connected with high-temperature resistance layer, the high-temperature resistance layer is made of alumina (Al2O3) ceramic material, the alumina (Al2O3) ceramic material has extremely high high-temperature resistance, can keep the structural stability and performance of pipeline under high-temperature environment. The utility model is made of aerogel felt material by heat insulation layer. Aerogel felt is a kind of material with nano-porous structure, which is full of a large number of small pores. The existence of these pores greatly limits the conduction of heat, because the conduction speed of heat in gas is much lower than in solid.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, and in particular to a heat-resistant stainless steel pipe. Background Technology

[0002] Stainless steel pipes are widely used in various fields such as petrochemicals, power, metallurgy, food processing, and pharmaceuticals due to their excellent corrosion resistance, high strength, and good mechanical properties. Especially under complex working conditions such as high temperature, high pressure, and corrosive environments, stainless steel pipes provide reliable performance guarantees, ensuring the safe operation of pipeline systems. In many industrial applications, pipelines need to transport high-temperature media, such as steam, hot water, high-temperature gases, or liquids. These high-temperature media place higher demands on the heat resistance and insulation performance of the pipelines. Insufficient insulation performance of the pipelines not only leads to heat loss and increased energy consumption but may also cause excessively high temperatures on the outer surface of the pipeline, endangering the safety of operators.

[0003] Existing insulation layers are typically thin and ineffective at preventing heat transfer. When transporting high-temperature media, the outer wall temperature of the pipeline remains high, potentially posing a safety hazard to surrounding equipment and personnel. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a heat-resistant stainless steel pipe.

[0005] This utility model is achieved using the following technical solution: a heat-resistant stainless steel pipe, comprising a stainless steel pipe body, wherein a heat insulation layer is fixedly connected to the inner wall of the stainless steel pipe, the heat insulation layer is made of aerogel felt material, the aerogel felt material has an extremely low thermal conductivity and a significant heat insulation effect, and a high-temperature resistant layer is fixedly connected to the inner wall of the heat insulation layer, the high-temperature resistant layer is made of alumina (Al2O3) ceramic material, the alumina (Al2O3) ceramic material has extremely high high-temperature resistance and can maintain the structural stability and performance of the pipe in high-temperature environments.

[0006] Through the above technical solutions, aerogel felt material possesses a nanoporous structure and extremely low thermal conductivity, significantly reducing heat transfer and effectively maintaining the stability of the pipe's internal temperature. Aerogel felt also exhibits good flexibility, allowing it to tightly adhere to the pipe's inner wall, ensuring the integrity and effectiveness of the insulation layer. It maintains stable insulation performance under high-temperature environments, making it suitable for transporting high-temperature media, extending the pipe's service life. By reducing heat loss, it improves energy efficiency, lowers energy consumption, and meets environmental protection and energy-saving requirements. Alumina ceramics possess extremely high melting points and thermal stability, maintaining the structural stability and performance of the pipe at extremely high temperatures, ensuring the safety of the pipe during high-temperature media transport. Under high-temperature conditions, alumina ceramics resist oxidation reactions, maintaining their physical and chemical properties, extending the pipe's service life. They can withstand rapid temperature changes without cracking or damage, ensuring the reliability of the pipe under thermal shock conditions. Alumina ceramics also possess good chemical stability, resisting the erosion of various chemical media, making them suitable for various complex working conditions.

[0007] As a further improvement to the above solution, a waterproof layer is fixedly connected to the surface of the stainless steel pipe body. The waterproof layer is made of polytetrafluoroethylene (PTFE) material. PTFE material has excellent waterproof performance, which can effectively prevent water penetration. At the same time, it has good chemical stability and corrosion resistance, which can protect the stainless steel pipe body from corrosion.

[0008] Through the above technical solutions, PTFE material has extremely low surface energy, making it difficult for water molecules to adhere. This effectively prevents moisture from penetrating into the pipe, protecting the stainless steel pipe body from corrosion. It can resist the erosion of various chemical substances, including acids, alkalis, and organic solvents, further enhancing the corrosion resistance of the pipe. PTFE material has a low coefficient of friction, which can reduce friction between the pipe surface and external objects, reducing wear. When exposed to natural environments for a long time (such as sunlight, rain, wind, sand, etc.), PTFE material can maintain its performance and extend the service life of the pipe.

[0009] As a further improvement to the above solution, a wear-resistant sleeve is fixedly connected to the surface of the waterproof layer. The wear-resistant sleeve is made of silicon carbide (SiC) composite material. The silicon carbide (SiC) composite material has extremely high hardness and wear resistance, which can effectively reduce the wear caused by friction during the transportation of materials and extend the service life of the pipeline. At the same time, it has good high temperature resistance.

[0010] Through the above technical solutions, silicon carbide material has extremely high hardness, second only to diamond, which can effectively reduce the wear of pipelines when transporting abrasive media, extend the service life of pipelines, maintain good wear resistance in high-temperature environments, and is suitable for transporting high-temperature media. Silicon carbide material has good chemical stability and can resist the erosion of various chemical media, further enhancing the corrosion resistance of pipelines. Due to its excellent wear resistance, the frequency of maintenance and replacement of pipelines due to wear is reduced, thus lowering maintenance costs.

[0011] As a further improvement to the above solution, an anti-slip sleeve is fixedly connected to the surface of the wear-resistant sleeve. Several anti-slip sleeves are provided, and the surface of the anti-slip sleeves is made of rubber material. The surface of the anti-slip sleeves has anti-slip texture, which can effectively prevent the displacement of the pipeline due to sliding during installation and use, and improve the installation stability and safety of the pipeline.

[0012] Through the above technical solution, the surface of the rubber material has anti-slip texture, which can effectively increase the friction with the contact surface and prevent the pipeline from shifting due to slippage during installation and use. The rubber material has good elasticity and can adapt to the bending and deformation of the pipeline, ensuring a tight fit between the anti-slip sleeve and the pipeline surface. The rubber material can maintain its performance under various environmental conditions, including humid, high temperature and low temperature environments. The rubber anti-slip sleeve is easy to install and replace and can be adjusted according to the actual needs of the pipeline.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes aerogel felt material for the insulation layer, whose extremely low thermal conductivity effectively reduces heat transfer, ensuring minimal heat loss of the high-temperature medium inside the pipeline during transportation. It also prevents the external environment from affecting the internal temperature of the pipeline, thereby improving energy efficiency and reducing operating costs. The high-temperature resistant layer is made of alumina ceramic material, which has extremely high high-temperature resistance. It can maintain the structural stability and performance of the pipeline in high-temperature environments, ensure the safety and reliability of the pipeline when transporting high-temperature media, and extend the service life of the pipeline. This invention utilizes polytetrafluoroethylene (PTFE) material for the waterproof layer, which has excellent waterproof performance and chemical stability. It can effectively prevent moisture and chemicals from corroding the stainless steel pipe body, protect the pipe from corrosion, and improve the pipe's durability. The wear-resistant sleeve is made of silicon carbide composite material, which has extremely high hardness and wear resistance. It can effectively reduce the wear of the pipe when transporting abrasive media, extend the service life of the pipe, and reduce maintenance costs. The anti-slip sleeve is made of rubber and has anti-slip texture. It can effectively prevent the displacement of the pipeline due to slippage during installation and use, and improve the installation stability and safety of the pipeline. The anti-slip sleeve is especially effective in humid or inclined environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model; Figure 3 This is a schematic cross-sectional view of the present invention. Figure 4 This is a schematic diagram of the stainless steel pipe body structure of this utility model.

[0015] Explanation of key symbols: 1. Stainless steel pipe body; 2. Waterproof layer; 3. Wear-resistant sleeve; 4. Anti-slip sleeve; 5. Heat insulation layer; 6. High temperature resistant layer. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] Example: Please combine Figure 1-4 This embodiment of a heat-resistant stainless steel pipe includes a stainless steel pipe body 1, an insulation layer 5 fixedly connected to the inner wall of the stainless steel pipe, the insulation layer 5 being made of aerogel felt material, the aerogel felt material having an extremely low thermal conductivity and a significant heat insulation effect, and a high-temperature resistant layer 6 fixedly connected to the inner wall of the insulation layer 5, the high-temperature resistant layer 6 being made of alumina (Al2O3) ceramic material, the alumina (Al2O3) ceramic material having extremely high high-temperature resistance, and being able to maintain the structural stability and performance of the pipe in high-temperature environments.

[0018] A waterproof layer 2 is fixedly connected to the surface of the stainless steel pipe body 1. The waterproof layer 2 is made of polytetrafluoroethylene (PTFE) material.

[0019] Polytetrafluoroethylene (PTFE) material has excellent waterproof properties, effectively preventing water penetration, while also possessing good chemical stability and corrosion resistance, protecting the stainless steel pipe body from corrosion.

[0020] A wear-resistant sleeve 3 is fixedly connected to the surface of the waterproof layer 2. The wear-resistant sleeve 3 is made of silicon carbide (SiC) composite material. Silicon carbide (SiC) composite material has extremely high hardness and wear resistance, which can effectively reduce the wear caused by friction during the transportation of materials and extend the service life of the pipeline. It also has good high temperature resistance.

[0021] The wear-resistant sleeve 3 is fixedly connected to an anti-slip sleeve 4. Several anti-slip sleeves 4 are provided, and the several anti-slip sleeves 4 are made of rubber material.

[0022] Several anti-slip sleeves 4 have anti-slip textures on their surfaces, which can effectively prevent the pipe from shifting due to sliding during installation and use, thereby improving the installation stability and safety of the pipe.

[0023] The implementation principle of a heat-resistant stainless steel pipe in this embodiment is as follows: The heat insulation layer 5 is made of aerogel felt material. Aerogel felt is a material with a nanoporous structure, filled with a large number of tiny pores. The presence of these pores greatly restricts heat conduction because the conduction speed of heat in a gas is much lower than that in a solid. When heat energy attempts to be transferred through the heat insulation layer 5, the heat transfer is significantly slowed down due to the low thermal conductivity of the aerogel felt, thereby effectively reducing the transfer of heat from the inner wall of the pipe to the outer wall, maintaining the stability of the internal temperature of the pipe, and ensuring that heat loss is minimized during the transportation of high-temperature media. The high-temperature resistant layer 6 is made of alumina (Al2O3) ceramic material. Alumina ceramic has an extremely high melting point and thermal stability, and can maintain its physical and chemical properties unchanged at extremely high temperatures. When high-temperature media are transported in the pipe, the high-temperature resistant layer 6 can withstand the high-temperature impact of the media, preventing the inner wall of the pipe from deforming or being damaged due to high temperature. Meanwhile, the oxidation resistance and thermal shock resistance of alumina ceramics ensure long-term stable operation in high-temperature environments, providing reliable high-temperature protection for the pipeline. Waterproof layer 2 is made of polytetrafluoroethylene (PTFE). PTFE has excellent waterproof performance and extremely low surface energy, making it difficult for water molecules to adhere to its surface. When the pipeline is in a humid environment or transporting water-containing media, waterproof layer 2 effectively prevents moisture from penetrating into the stainless steel pipe body 1, preventing corrosion due to moisture erosion. Furthermore, PTFE also has good chemical stability, resisting the erosion of various chemicals, further protecting the stainless steel pipe body 1 from chemical corrosion. Wear-resistant sleeve 3 is made of silicon carbide (SiC) composite material. Silicon carbide has extremely high hardness and wear resistance, second only to diamond in hardness. When the pipeline is transporting solid particles or abrasive media, wear-resistant sleeve 3 effectively reduces friction between the media and the pipe surface, preventing the pipe surface from thinning or being damaged due to wear. Meanwhile, the high-temperature resistance of silicon carbide material allows it to maintain good wear resistance in high-temperature environments, ensuring the service life of the pipeline under harsh conditions. The anti-slip sleeve 4 is made of rubber with an anti-slip textured surface. Rubber material has good elasticity and a high coefficient of friction, and its anti-slip texture further increases friction with the contact surface. During pipeline installation or use, the anti-slip sleeve 4 effectively prevents the pipeline from sliding or shifting due to external forces, ensuring the stability and safety of the pipeline installation. This is especially important in humid or inclined environments.

[0024] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A heat-resistant stainless steel pipe, characterized in that, The system includes a stainless steel pipe body (1), with a heat insulation layer (5) fixedly connected to the inner wall of the stainless steel pipe. The heat insulation layer (5) is made of aerogel felt material, which has an extremely low thermal conductivity and a significant heat insulation effect. A high-temperature resistant layer (6) is fixedly connected to the inner wall of the heat insulation layer (5), which is made of alumina (Al2O3) ceramic material. The alumina (Al2O3) ceramic material has extremely high high-temperature resistance and can maintain the structural stability and performance of the pipe in a high-temperature environment.

2. The heat-resistant stainless steel pipe as described in claim 1, characterized in that: A waterproof layer (2) is fixedly connected to the surface of the stainless steel pipe body (1), and the waterproof layer (2) is made of polytetrafluoroethylene (PTFE) material.

3. The heat-resistant stainless steel pipe as described in claim 2, characterized in that: The polytetrafluoroethylene (PTFE) material has excellent waterproof performance, which can effectively prevent water penetration. At the same time, it has good chemical stability and corrosion resistance, which can protect the stainless steel pipe body (1) from corrosion.

4. The heat-resistant stainless steel pipe as described in claim 3, characterized in that: The surface of the waterproof layer (2) is fixedly connected to a wear-resistant sleeve (3). The wear-resistant sleeve (3) is made of silicon carbide (SiC) composite material. The silicon carbide (SiC) composite material has extremely high hardness and wear resistance, which can effectively reduce the wear caused by friction during the material transportation process and extend the service life of the pipeline. It also has good high temperature resistance.

5. The heat-resistant stainless steel pipe as described in claim 4, characterized in that: The wear-resistant sleeve (3) is fixedly connected to an anti-slip sleeve (4), and there are several anti-slip sleeves (4), which are made of rubber material.

6. The heat-resistant stainless steel pipe as described in claim 5, characterized in that: Several of the anti-slip sleeves (4) have anti-slip textures on their surfaces, which can effectively prevent the displacement of the pipeline due to sliding during installation and use, and improve the installation stability and safety of the pipeline.

Images