Thermal insulation aluminum-plastic composite pipe

Abstract

The utility model provides a thermal insulation aluminum-plastic composite pipe, which relates to the technical field of aluminum-plastic composite pipes and comprises a plastic shell, an impermeable layer is fixedly mounted on the inner wall of the plastic shell, a waterproof layer is arranged on the inner wall of the impermeable layer, an aluminum pipe layer is fixedly mounted on the inner wall of the waterproof layer, and thermal insulation cotton is fixedly mounted on the surface of the aluminum pipe layer. A rubber layer is arranged on the inner wall of the heat preservation cotton, a heat insulation layer is arranged on the inner wall of the rubber layer, and a plastic inner shell is fixedly installed on the surface of the heat insulation layer. By arranging the heat preservation cotton, the rubber layer and the heat insulation layer, the heat preservation performance of the composite pipe can be improved, and it is avoided that the heat preservation or cold preservation function is reduced when the composite pipe is used for a heating or cooling environment; the service life of the heat preservation cotton can be prolonged to a certain extent, water mist and the like can be adsorbed, the phenomenon that the composite pipe is damped and mildewed is avoided, and the heat preservation performance of the composite pipe can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plastic composite pipes, in particular to a heat-insulating aluminum-plastic composite pipe. Background Art

[0002] Aluminum-plastic composite pipe is the earliest water supply pipe to replace cast iron pipe. Its basic structure should be five layers, namely plastic, hot melt adhesive, aluminum alloy, hot melt adhesive, and plastic from the inside out. Polyethylene is a non-toxic, odorless plastic with good impact resistance, corrosion resistance, and weather resistance. The middle layer of longitudinally welded aluminum alloy gives the pipe the compressive strength of metal, and the impact resistance makes the pipe easy to bend without rebounding. Aluminum-plastic composite pipe has two major characteristics: strong pressure resistance of metal pipe and acid and alkali resistance and corrosion resistance of plastic pipe. It is a model of the new generation of pipes. Aluminum-plastic composite pipe is more suitable for use in home decoration because of its light weight, durability, convenient construction, and flexibility.

[0003] Chinese patent publication number CN219588306U discloses an aluminum-plastic composite pipe, comprising an inner plastic layer, an outer plastic layer, and an aluminum alloy layer arranged between the inner plastic layer and the outer plastic layer, wherein the aluminum alloy layer is composed of two aluminum alloy sheets with the same structure and a semicircular cross section, and the two sides of the aluminum alloy sheet are continuously bent inward to form a first bending portion and a second bending portion, so that a cavity is formed between the aluminum alloy sheet and the inner plastic layer; the second bending portion is an arc-shaped structure, and its radius is the same as the outer radius of the inner plastic layer, and the second bending portion is glued and fixed on the inner plastic layer; the outer plastic layer is covered by extrusion On the outside of the aluminum alloy layer, the aluminum-plastic composite pipe is fixed to the inner plastic layer by splicing, which can reduce the difficulty of production and processing of the aluminum-plastic composite pipe and improve the production and processing efficiency. Since a cavity is formed in the pipe layer, the material of the pipe can be reduced and the weight of the pipe can be reduced, making the aluminum-plastic composite pipe lighter and convenient for construction and installation. However, common aluminum pipes are often used in heating and cooling environments in addition to being used as natural water, natural gas and other gaseous and liquid gases at room temperature. The temperature of the gaseous and liquid transported in the pipeline will dissipate through the pipe wall to the outside of the pipe wall, causing heat or cold loss, so improvement is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: an insulating aluminum-plastic composite pipe, comprising a plastic outer shell, an anti-seepage layer is fixedly installed on the inner wall of the plastic outer shell, a waterproof layer is arranged on the inner wall of the anti-seepage layer, an aluminum tube layer is fixedly installed on the inner wall of the waterproof layer, thermal insulation cotton is fixedly installed on the surface of the aluminum tube layer, a rubber layer is arranged on the inner wall of the thermal insulation cotton, a thermal insulation layer is arranged on the inner wall of the rubber layer, and a plastic inner shell is fixedly installed on the surface of the thermal insulation layer.

[0006] Preferably, the material of the thermal insulation cotton is foamed cotton, and the rubber layer and the thermal insulation cotton are fixedly connected by an inner adhesive layer.

[0007] Preferably, the material of the insulation layer is glass wool, and the material of the waterproof layer is water-absorbent resin.

[0008] Preferably, the plastic outer shell is connected to the two ends of the plastic inner shell.

[0009] Preferably, a water-absorbing block is fixedly mounted on the inner wall of the anti-seepage layer, a ventilation groove is provided on the surface of the waterproof layer, a silicone block is fixedly mounted on the inner wall of the rubber layer, and a groove is provided on the surface of the thermal insulation layer.

[0010] Here, it is convenient to

[0011] Preferably, the shape and size of the water-absorbing blocks match those of the ventilation grooves, the water-absorbing blocks are distributed in a circular array on the inner wall of the anti-seepage layer, and the ventilation grooves are distributed in a circular array on the surface of the waterproof layer.

[0012] Preferably, the shape and size of the silicone block match the groove, the silicone block is distributed in a circular array on the inner wall of the rubber layer, and the groove is distributed in a circular array on the surface of the insulation layer.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, thermal insulation cotton, rubber layer and thermal insulation layer are provided, and the material of the thermal insulation cotton is set to foam cotton. The foam cotton has an independent bubble structure, low density and good flexibility. At the same time, it does not absorb water and has good anti-penetration performance. It also has good thermal insulation and heat insulation properties, which can improve the thermal insulation performance of the composite pipe and avoid the heat preservation or cooling function of the composite pipe being reduced when the composite pipe is used in a heating or cooling environment. The foam cotton also has excellent aging resistance, which can improve the service life of the thermal insulation cotton to a certain extent. The material of the waterproof layer is set to water-absorbing resin, which is a polymer material with excellent water retention performance and excellent high water absorption function. It can absorb water mist and the like to avoid moisture and mold in the composite pipe. The material of the thermal insulation layer is set to glass wool. Glass wool has strong thermal insulation and can effectively improve the thermal insulation performance of the composite pipe.

[0015] 2. In the utility model, by arranging water-absorbing blocks and ventilation grooves, internal moisture can be absorbed to avoid the phenomenon that the interior of the composite pipe is in a state of humidity for a long time. The water-absorbing blocks are adapted to the shapes and sizes of the ventilation grooves, which can make the connection between the water-absorbing blocks and the ventilation grooves tighter, further improving the moisture-proof effect. Silicone blocks and grooves are also arranged. The silicone blocks have a certain elasticity, which can improve the buffering effect of the rubber layer and reduce the probability of the composite pipe breaking to a certain extent, so the utility model is practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a thermal insulation aluminum-plastic composite pipe is provided for the utility model;

[0017] Figure 2 A partial cross-sectional view of a thermal insulation aluminum-plastic composite pipe is provided for the utility model;

[0018] Figure 3 The utility model proposes a thermal insulation aluminum-plastic composite pipe Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A cross-sectional view of a thermal insulation aluminum-plastic composite pipe is proposed for the utility model;

[0020] Figure 5 The utility model proposes a thermal insulation aluminum-plastic composite pipe Figure 4 Enlarged view of point B in the middle.

[0021] Legend:

[0022] 1. Plastic outer shell; 2. Anti-seepage layer; 3. Waterproof layer; 4. Aluminum tube layer; 5. Thermal insulation cotton; 6. Rubber layer; 7. Thermal insulation layer; 8. Plastic inner shell; 9. Inner adhesive layer; 10. Water-absorbing block; 11. Ventilation groove; 12. Silicone block; 13. Groove. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1

[0026] See also Figure 1-5 The utility model provides a technical solution: an insulating aluminum-plastic composite pipe, comprising a plastic outer shell 1, the plastic outer shell 1 is connected to both ends of a plastic inner shell 8, an impermeable layer 2 is fixedly installed on the inner wall of the plastic outer shell 1, a waterproof layer 3 is arranged on the inner wall of the impermeable layer 2, the waterproof layer 3 is made of a water-absorbing resin, the water-absorbing resin has excellent water retention performance and superior high water absorption function, can absorb water mist, etc., to avoid moisture and mold in the composite pipe, an aluminum tube layer 4 is fixedly installed on the inner wall of the waterproof layer 3, and a thermal insulation cotton 5 is fixedly installed on the surface of the aluminum tube layer 4.

[0027] See also Figure 2-3 The material of the thermal insulation cotton 5 is foam cotton, which does not absorb water and has good anti-penetration performance. It has good thermal insulation properties, which can improve the thermal insulation performance of the composite pipe and avoid the reduction of the heat preservation or cooling function when the composite pipe is used in a heating or cooling environment. The inner wall of the thermal insulation cotton 5 is provided with a rubber layer 6, and the rubber layer 6 and the thermal insulation cotton 5 are fixedly connected by an inner adhesive layer 9. The inner wall of the rubber layer 6 is provided with a thermal insulation layer 7. The material of the thermal insulation layer 7 is glass wool, and glass wool has strong thermal insulation properties, which can effectively improve the thermal insulation performance of the composite pipe. A plastic inner shell 8 is fixedly installed on the surface of the thermal insulation layer 7.

[0028] Embodiment 2

[0029] See also Figure 2-5 A water-absorbing block 10 is fixedly installed on the inner wall of the anti-seepage layer 2, a ventilation groove 11 is provided on the surface of the waterproof layer 3, and a silicone block 12 is fixedly installed on the inner wall of the rubber layer 6. The silicone block 12 has a certain elasticity, which can improve the buffering effect of the rubber layer 6 and reduce the probability of the composite pipe breaking to a certain extent. A groove 13 is provided on the surface of the thermal insulation layer 7. The shape and size of the water-absorbing block 10 match those of the ventilation groove 11, which can make the water-absorbing block 10 and the ventilation groove 11 more closely connected, further improving the moisture-proof effect. The water-absorbing block 10 is distributed in a circular array on the inner wall of the anti-seepage layer 2, and the ventilation groove 11 is distributed in a circular array on the surface of the waterproof layer 3. The silicone block 12 matches the shape and size of the groove 13. The silicone block 12 is distributed in a circular array on the inner wall of the rubber layer 6, and the groove 13 is distributed in a circular array on the surface of the thermal insulation layer 7.

[0030] Working principle: The material of the thermal insulation cotton 5 is set to be foamed cotton. The foamed cotton has an independent bubble structure, low density, and good flexibility. It does not absorb water, has good anti-penetration performance, and has good thermal insulation properties. It can improve the thermal insulation performance of the composite pipe and avoid the decrease of the heat preservation or cooling function of the composite pipe when it is used in a heating or cooling environment. The foamed cotton also has excellent aging resistance, which can improve the service life of the thermal insulation cotton 5 to a certain extent. The material of the waterproof layer 3 is set to be a water-absorbent resin. The water-absorbent resin is a polymer material with excellent water retention performance and excellent high water absorption function. It can be adsorbed by water mist, etc., to avoid causing the composite pipe The inside of the composite pipe becomes damp and moldy. The material of the thermal insulation layer 7 is set to glass wool. Glass wool has strong heat insulation and can effectively improve the thermal insulation performance of the composite pipe. The water-absorbing block 10 and the ventilation groove 11 can absorb internal moisture to avoid the long-term moisture inside the composite pipe. The shape and size of the water-absorbing block 10 and the ventilation groove 11 are adapted to each other, which can make the water-absorbing block 10 and the ventilation groove 11 more tightly connected, further improving the moisture-proof effect. A silicone block 12 and a groove 13 are also provided. The silicone block 12 has a certain elasticity, which can improve the buffering effect of the rubber layer 6 and reduce the probability of breakage of the composite pipe to a certain extent.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A thermal insulation aluminum-plastic composite pipe, comprising a plastic shell (1), Features: An impermeable layer (2) is fixedly mounted on the inner wall of the plastic outer shell (1), a waterproof layer (3) is provided on the inner wall of the impermeable layer (2), an aluminum tube layer (4) is fixedly mounted on the inner wall of the waterproof layer (3), a thermal insulation cotton (5) is fixedly mounted on the surface of the aluminum tube layer (4), a rubber layer (6) is provided on the inner wall of the thermal insulation cotton (5), a thermal insulation layer (7) is provided on the inner wall of the rubber layer (6), and a plastic inner shell (8) is fixedly mounted on the surface of the thermal insulation layer (7).

2. The thermal insulation aluminum-plastic composite pipe according to claim 1, Features: The thermal insulation cotton (5) is made of foamed cotton, and the rubber layer (6) and the thermal insulation cotton (5) are fixedly connected via an inner adhesive layer (9).

3. The thermal insulation aluminum-plastic composite pipe according to claim 1, Features: The material of the thermal insulation layer (7) is glass wool, and the material of the waterproof layer (3) is water-absorbing resin.

4. The thermal insulation aluminum-plastic composite pipe according to claim 1, Features: The plastic outer shell (1) is connected to the plastic inner shell (8) at both ends.

5. The thermal insulation aluminum-plastic composite pipe according to claim 1, Features: A water-absorbing block (10) is fixedly mounted on the inner wall of the anti-seepage layer (2), a ventilation groove (11) is provided on the surface of the waterproof layer (3), a silica gel block (12) is fixedly mounted on the inner wall of the rubber layer (6), and a groove (13) is provided on the surface of the thermal insulation layer (7).

6. The thermal insulation aluminum-plastic composite pipe according to claim 5, Features: The shape and size of the water absorbing blocks (10) match those of the ventilation grooves (11); the water absorbing blocks (10) are distributed in a circular array on the inner wall of the anti-seepage layer (2); and the ventilation grooves (11) are distributed in a circular array on the surface of the waterproof layer (3).

7. The thermal insulation aluminum-plastic composite pipe according to claim 5, Features: The shapes and sizes of the silica gel blocks (12) and the grooves (13) match each other; the silica gel blocks (12) are distributed in a circular array on the inner wall of the rubber layer (6); and the grooves (13) are distributed in a circular array on the surface of the thermal insulation layer (7).

Images