Energy-saving polyurethane thermal insulation pipe with inner wall microstructure

Abstract

The utility model discloses an energy-saving type polyurethane thermal insulation pipe with an inner wall microstructure, which relates to the field of polyurethane thermal insulation pipes and comprises an inner pipe body and an inner wall pipe arranged on the inner wall of the inner pipe body, a fixing column is arranged between the inner pipe body and the inner wall pipe, micropores are arranged on the surface of the inner wall pipe, and the inner wall pipe is provided with an inner wall microstructure. And an inner wall micro mechanism is arranged on the inner side of the inner wall pipe. According to the energy-saving type polyurethane heat preservation pipe with the inner wall microstructure, the inner wall pipe is installed in the inner pipe body through the fixing columns, micropores are formed in the surface of the inner wall pipe, heat is conveyed to the gas isolation layer through the micropores, under the arrangement of the bubble layer structure, heat conduction can be reduced, the heat conduction speed is reduced by changing the surface micromorphology, and the heat preservation effect is improved. The heat isolation performance of the inner wall is improved through the nanometer coating, the inner wall microstructure can effectively reduce heat transfer through the pipeline wall by forming the gas isolation layer, the micropores and the bubble layer, temperature loss is reduced, and the heat preservation performance of the heat preservation pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane insulation pipe technology, specifically an energy-saving polyurethane insulation pipe with an inner wall microstructure. Background Technology

[0002] Polyurethane insulated pipes are pipe insulation products made of polyurethane materials, widely used in construction, industry, refrigeration, heating and other fields; their main function is to reduce heat conduction and ensure that the fluid (such as hot or cold water) transported in the pipe maintains the required temperature, thereby improving energy efficiency and reducing heat loss.

[0003] In existing technologies, the insulation effect of thermal insulation pipes is poor, which is not conducive to saving resources and easily leads to waste.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN213629270U) discloses a polyurethane insulation pipe, including a working pipe. The inner side of the working pipe is provided with an anti-corrosion layer. The outer side of the working pipe is provided with a first insulation layer, a support layer, a second insulation layer, and a protective outer pipe in sequence. A first heat insulation layer is provided between the support layer and the second insulation layer. A second heat insulation layer is provided between the second insulation layer and the protective outer pipe. The outer side of the protective outer pipe is provided with strip-shaped anti-wear textures. The outer side of the anti-wear textures is coated with an anti-corrosion coating. A V-shaped reinforcing rib connects the working pipe and the protective outer pipe. A pressure plate is provided at the connection between the reinforcing rib and the working pipe. It has good insulation effect, high strength, stable structure, and extended service life.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist during their operation, such as: the temperature loss rate is too fast, which can easily reduce the insulation effect of the insulation pipe, and the external environment has a significant impact on the temperature inside the pipe. Utility Model Content

[0006] The purpose of this invention is to provide an energy-saving polyurethane insulation pipe with an inner wall microstructure, in order to solve the problems mentioned in the background art, such as the excessively rapid temperature loss, which easily reduces the insulation effect of the insulation pipe, and the significant impact of the external environment on the internal temperature of the pipe.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving polyurethane insulation pipe with an inner wall microstructure, comprising an inner tube body and an inner wall tube disposed on the inner wall of the inner tube body, and a fixing column is disposed between the inner tube body and the inner wall tube; the surface of the inner wall tube is provided with micropores, and the inner side of the inner wall tube is provided with an inner wall microstructure, and the inner wall microstructure is provided with protrusions and concave blocks, and the outer side of the protrusions and concave blocks is disposed on the inner wall of the inner wall tube; an insulation layer is disposed on the outer side of the inner tube body, and a protective mechanism is disposed on the outer side of the insulation layer.

[0008] Furthermore, fixing columns are uniformly fixedly installed on the inner wall of the inner tube, and the inner side of the fixing columns is fixedly installed on the outer wall of the inner tube.

[0009] Furthermore, the micropores of the inner wall microstructure are evenly distributed on the surface of the inner wall tube, and a bubble layer is provided between the inner tube body and the inner wall tube. A gas isolation layer is provided on the inner wall of the bubble layer, and the gas isolation layer corresponds to the micropores.

[0010] Furthermore, the inner wall of the inner tube is fixedly installed with a concave-convex block, and the concave-convex block is arc-shaped, with the center of the concave-convex block being concave-convex.

[0011] Furthermore, the inner wall of the inner tube is provided with a nano-coating, and the nano-coating is uniformly distributed on the inner wall of the inner tube.

[0012] Furthermore, the protective mechanism is provided with an insulation layer, which is fitted onto the outer surface of the inner tube. The insulation layer is made of polyurethane insulation foam material, and a reinforcing layer is fitted onto the outer side of the insulation layer.

[0013] Furthermore, an outer tube is fitted around the outside of the reinforcing layer, and an anti-corrosion layer is fitted around the outside of the outer tube, and the anti-corrosion layer is made of polyethylene material.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. An inner wall tube is installed inside the inner tube body via fixed columns. The surface of the inner wall tube is provided with micropores, through which heat is transferred to the gas insulation layer. The bubble layer structure reduces heat conduction. Furthermore, the inner wall tube has bumps and dents, which increase the contact area of ​​the fluid inside the insulation tube, allowing the insulation tube to further insulate the fluid contained inside. The curved bumps and dents disrupt the heat conduction path, reducing direct heat transfer through the inner wall tube. By changing the surface microstructure, the heat conduction speed is reduced. Combined with a nano-coating on the inner wall tube, the nano-coating improves the thermal insulation performance of the inner wall. The microstructure of the inner wall, through the formation of the gas insulation layer, micropores, and bubble layer, effectively reduces heat transfer through the pipe wall, reduces temperature loss, and improves the insulation performance of the pipe.

[0016] 2. An insulation layer is installed on the outside of the inner pipe body. The insulation layer is made of polyurethane foam material, which has a high-efficiency insulation effect and can effectively retain the temperature of the inner wall of the pipe. A reinforcing layer is installed on the outside of the insulation layer to improve the structural strength of the insulated pipe and prevent deformation. An anti-corrosion layer is installed on the outside of the outer pipe body. The anti-corrosion layer is made of polyethylene material, which can improve the corrosion resistance of the surface of the insulated pipe and extend its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the protrusion and concave block of this utility model;

[0020] Figure 4 This is a side sectional view of the three-dimensional structure of the present invention;

[0021] Figure 5 This is a three-dimensional cross-sectional view of the inner wall tube of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the nano-coating of this utility model.

[0023] In the diagram: 1. Inner tube; 2. Fixing column; 3. Inner wall tube; 4. Micropores; 5. Bubble layer; 6. Gas isolation layer; 7. Bumps; 8. Nano coating; 9. Insulation layer; 10. Reinforcing layer; 11. Outer tube; 12. Anti-corrosion layer. Detailed Implementation

[0024] 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.

[0025] Example 1: As Figures 1-6 The technical solution shown is an energy-saving polyurethane insulation pipe with an inner wall microstructure. To solve the problem of excessive temperature loss, the following is disclosed: an inner tube body 1 and an inner wall tube 3 disposed on the inner wall of the inner tube body 1, with a fixing post 2 disposed between the inner tube body 1 and the inner wall tube 3. The surface of the inner wall tube 3 is provided with micropores 4, and the inner side of the inner wall tube 3 is provided with an inner wall microstructure, and the inner wall microstructure is provided with protrusions and depressions 7. The outer side of the protrusions and depressions 7 is disposed on the inner wall of the inner wall tube 3. The fixing post 2 is uniformly fixedly installed on the outer side of the inner wall of the inner tube body 1, and the inner side of the fixing post 2 is fixedly installed on the outer wall of the inner wall tube 3. The micropores 4 of the inner wall microstructure are uniformly distributed on the surface of the inner wall tube 3. An air bubble layer 5 is disposed between the inner tube body 1 and the inner wall tube 3, and a gas isolation layer 6 is formed on the inner wall of the air bubble layer 5, and the gas isolation layer 6 corresponds to the micropores 4.

[0026] In one possible implementation, the energy-saving polyurethane insulation pipe with an inner wall microstructure can be used in a centralized heating system, where an internal fluid flows inside the inner wall pipe 3.

[0027] In some examples, the internal fluid flowing inside the inner wall pipe 3 can be hot water, steam, or other fluids that require temperature control.

[0028] The inner walls of the inner wall tube 3 are fixedly installed with protrusions and concave blocks 7, and the protrusions and concave blocks 7 are arc-shaped, and the center of the protrusions and concave blocks 7 is concave and convex. The inner wall of the inner wall tube 3 is provided with a nano coating 8, and the nano coating 8 is evenly distributed on the inner wall of the inner wall tube 3.

[0029] An inner wall tube 3 is installed inside the inner tube body 1 via a fixing column 2. Micropores 4 are provided on the surface of the inner wall tube 3, through which heat is transferred to the gas insulation layer 6. By designing micropores 4 on the surface of the inner wall tube 3, the complexity of the heat transfer path is increased, slowing down the heat flow rate. Simultaneously, the gas insulation layer 6 reduces heat transfer efficiency, thereby improving the overall insulation effect of the insulation pipe. The micropores 4 provide significant thermal resistance at the microscopic level, effectively slowing down the heat flow rate and reducing temperature loss of the internal fluid, thus optimizing the insulation performance of the insulation pipe and achieving energy-saving effects.

[0030] For example, the bubble layer 5 with a bubble structure can be achieved through a foaming process or by adding a foaming agent to form a uniformly distributed bubble structure. The bubbles contained in the bubble layer 5 form multiple gas isolation layers at the microscopic level. This arrangement allows heat transfer to be scattered and reflected within the bubble layer 5, and through the gas isolation effect between the bubbles, a thermal isolation barrier is further formed for the fluid inside the insulation pipe. This effectively slows down the heat flow rate, thereby making the temperature of the internal fluid more stable, reducing heat exchange with the external environment, and improving the insulation performance of the insulation pipe.

[0031] The inner wall of the inner tube 3 is provided with bumps 7. The bumps 7 are arranged in a concave-convex shape. This arrangement can effectively increase the inner wall surface area of ​​the inner tube 3 and make the flow path of the inner fluid inside the insulation tube more tortuous. This increases the contact time between the inner fluid and the inner wall, thereby enhancing the heat exchange resistance. This allows the inner fluid flowing inside the insulation tube to be further insulated, slows down the heat flow rate, and ensures that the temperature of the inner fluid will not be easily lost. By changing the micromorphology of the surface, the heat conduction rate is reduced.

[0032] In one possible implementation, the inner wall tube 3 can be a steel pipe.

[0033] The nano-coating 8, which is applied to the inner wall of the inner tube 3, improves the thermal insulation performance of the inner wall. The microstructure of the inner wall, through the formation of a gas isolation layer 6, micropores 4, and bubble layer 5, can effectively reduce the transfer of heat through the pipe wall, reduce temperature loss, and improve the insulation performance of the pipe. The pipe can better maintain the temperature of the internal fluid and reduce the influence of the external environment on the temperature inside the pipe. By optimizing the design of the inner wall microstructure, the external heating or cooling requirements are reduced, thereby significantly reducing energy consumption and demonstrating energy-saving effects.

[0034] Example 2: Figures 1-5 The technical solution shown, based on Embodiment 1, discloses the following to address the problem of poor pipeline protection: an insulation layer 9 is provided on the outer side of the inner pipe body 1, and a protective mechanism is provided on the outer side of the insulation layer 9. The protective mechanism is provided with the insulation layer 9, and the insulation layer 9 is fitted onto the outer surface of the inner pipe body 1. The insulation layer 9 is made of polyurethane insulation foam material. A reinforcing layer 10 is fitted on the outer side of the insulation layer 9, and an outer pipe body 11 is fitted on the outer side of the reinforcing layer 10. An anti-corrosion layer 12 is fitted on the outer side of the outer pipe body 11, and the anti-corrosion layer 12 is made of polyethylene material.

[0035] An insulation layer 9 is provided on the outside of the inner tube 1. The insulation layer 9 is made of polyurethane foam, which has a low thermal conductivity and can effectively prevent heat conduction, thereby reducing heat loss from the insulation pipe. A reinforcing layer 10 is also provided on the outside of the insulation layer 9. The reinforcing layer 10 effectively improves the overall structural strength of the insulation pipe, preventing deformation or damage under external forces during use. By enhancing the mechanical strength of the insulation pipe, it can maintain stable structural performance even under high pressure, high temperature, or other harsh environments. An anti-corrosion layer 12 is fitted on the outside of the outer tube 11. The anti-corrosion layer 12 is made of polyethylene and effectively prevents moisture, chemicals, and other corrosive media from eroding the surface of the insulation pipe, thus protecting it from corrosion.

[0036] 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 these 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. An energy-saving polyurethane insulation pipe with an inner wall microstructure, comprising an inner pipe body (1) and an inner wall pipe (3) disposed on the inner wall of the inner pipe body (1), and a fixing column (2) is disposed between the inner pipe body (1) and the inner wall pipe (3); Its features are: The surface of the inner wall tube (3) is provided with micropores (4), and the inner side of the inner wall tube (3) is provided with an inner wall micro mechanism, and the inner wall micro mechanism is provided with bumps (7), and the outer side of the bumps (7) is provided on the inner wall of the inner wall tube (3). The outer side of the inner tube (1) is provided with a heat insulation layer (9), and a protective mechanism is provided on the outer side of the heat insulation layer (9).

2. The energy-saving polyurethane insulation pipe with an inner wall microstructure according to claim 1, characterized in that: The inner wall of the inner tube (1) is uniformly fixed with fixing columns (2), and the inner side of the fixing columns (2) is fixedly installed on the outer wall of the inner tube (3).

3. The energy-saving polyurethane insulation pipe with an inner wall microstructure according to claim 1, characterized in that: The micropores (4) of the inner wall microstructure are evenly distributed on the surface of the inner wall tube (3), and a bubble layer (5) is provided between the inner tube body (1) and the inner wall tube (3). A gas isolation layer (6) is provided on the inner wall of the bubble layer (5), and the gas isolation layer (6) corresponds to the micropores (4).

4. The energy-saving polyurethane insulation pipe with an inner wall microstructure according to claim 3, characterized in that: The inner wall of the inner wall tube (3) is fixedly installed with a concave-convex block (7), and the concave-convex block (7) is arc-shaped, and the center of the concave-convex block (7) is concave-convex.

5. The energy-saving polyurethane insulation pipe with an inner wall microstructure according to claim 4, characterized in that: The inner wall of the inner wall tube (3) is provided with a nano-coating (8), and the nano-coating (8) is uniformly distributed on the inner wall of the inner wall tube (3).

6. The energy-saving polyurethane insulation pipe with an inner wall microstructure according to claim 1, characterized in that: The protective mechanism is provided with an insulation layer (9), which is fitted on the outer surface of the inner tube (1). The insulation layer (9) is made of polyurethane insulation foam material, and a reinforcing layer (10) is fitted on the outer side of the insulation layer (9).

7. The energy-saving polyurethane insulation pipe with an inner wall microstructure according to claim 6, characterized in that: The outer tube (11) is sleeved on the outside of the reinforcing layer (10), and the outer tube (11) is sleeved on the outside of the anti-corrosion layer (12), and the anti-corrosion layer (12) is made of polyethylene material.

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