Environment-friendly composite thermal insulation plastic pipeline

Abstract

The utility model discloses an environment-friendly composite heat preservation plastic pipeline, which relates to the technical field of plastic pipelines and comprises a pipe body, and the pipe body comprises a corrosion-resistant inner layer, a heat preservation layer, a reinforcing layer and a wear-resistant outer layer. According to the heat preservation pipe, the heat preservation layer is arranged in the pipe body, the first cavities and the second cavities which are distributed in the staggered mode are formed in the heat preservation layer, and due to the arrangement of the first cavities and the second cavities, the heat preservation layer is separated, and meanwhile the structural strength of the heat preservation layer is not affected; the first heat preservation filling and the second heat preservation filling which are made of foaming polyurethane materials are arranged on the two sides of the separation block, heat transfer between the two sides of the heat preservation layer is effectively isolated through the arrangement of the first heat preservation filling and the second heat preservation filling, and the first heat preservation filling and the second heat preservation filling are separated through the separation block; the heat transfer effect of the two sides of the heat preservation layer is further improved, and therefore the heat preservation effect of the pipe body is effectively improved.

Description

Technical Field

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

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media. It is used in thermal insulation projects of pipelines in petroleum, chemical industry, aerospace, hot spring, military, central heating, central air conditioning and municipal engineering. Pipes are common components in industry and daily life. Pipes are widely used in liquid and gas transportation networks. The quality of their construction is directly related to the safety of people’s lives and property and the level of infrastructure construction. Insulation is required in mining projects, and pipes need to be buried underground or used outdoors, and are easily bumped during transportation. Plastic pipes are commonly used insulated pipes.

[0003] For example, a heat-insulating plastic pipe with the publication number CN215635460U includes a plastic pipe body, the inner wall of the plastic pipe body is fixedly connected with a heat-insulating inner pipe, the inner wall of the heat-insulating inner pipe is fixedly connected with a corrosion-resistant plastic pipe, the interior of the plastic pipe body is fixedly connected with a reinforcing layer, the interior of the reinforcing layer is fixedly connected with reinforcing ribs arranged at equal distances, the interior of the reinforcing layer is fixedly connected with graphene strips arranged at equal distances, the inner circle of the reinforcing layer is fixedly connected with a first anti-cracking layer, and the inner circle of the first anti-cracking layer is fixedly connected with a second anti-cracking layer. The utility model has a reasonable design structure. It can enhance the wear resistance of the plastic pipe body and extend the service life of the plastic pipe body by mainly using aluminum oxide to make the wear-resistant layer. It can improve the heat-insulating effect of the plastic pipe body by using silicon carbide fiber to make the heat-insulating layer. It can seal other pipes through the cooperation of sealing balls and sealing rings to improve the sealing of the joints of the plastic pipe body.

[0004] The above technical solution has some problems in practical application. This technical solution only improves the thermal insulation effect of the plastic pipe by adding a thermal insulation layer, and the improvement of the thermal insulation effect is limited.

[0005] Therefore, it is necessary to invent an environmentally friendly composite thermal insulation plastic pipe to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an environmentally friendly composite thermal insulation plastic pipe to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly composite insulated plastic pipe, comprising a pipe body, wherein the pipe body comprises a corrosion-resistant inner layer, an insulation layer, a reinforcement layer and a wear-resistant outer layer, wherein the corrosion-resistant inner layer, the insulation layer, the reinforcement layer and the wear-resistant outer layer are arranged in sequence from the inside to the outside, and a plurality of first cavities and second cavities are arranged inside the insulation layer, and the plurality of first cavities and second cavities are arranged in a staggered manner, a support block is fixedly arranged inside the second cavity, and the support block is arranged in a "Y" shape structure, a partition block is fixedly arranged inside the first cavity, and the partition block is arranged in a corrugated structure, and a first insulation filling and a second insulation filling are respectively arranged on both sides of the partition block, a plurality of reinforcing ribs are arranged around the inner side of the corrosion-resistant inner layer, and a plurality of grooves are opened on the inner side of the reinforcing ribs.

[0008] Preferably, the reinforcing ribs are arranged in a circular structure, and a plurality of reinforcing ribs are arranged in a surrounding manner, and the grooves are arranged in a "V"-shaped structure, and a plurality of grooves are arranged at equal intervals.

[0009] Preferably, the first thermal insulation filler and the second thermal insulation filler are both made of foamed polyurethane.

[0010] Preferably, the material of the corrosion-resistant inner layer is nitrile rubber, and the thickness of the corrosion-resistant inner layer is 1-1.2 mm.

[0011] Preferably, the material of the thermal insulation layer is silicon carbide, and the thickness of the thermal insulation layer is 3.5-5 mm.

[0012] Preferably, the material of the reinforcement layer is polyethylene, and the thickness of the reinforcement layer is 2-4 mm, and the material of the wear-resistant outer layer is polyvinyl chloride, and the thickness of the wear-resistant outer layer is 0.5-1 mm.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model sets a heat-insulating layer inside the pipe body, and the heat-insulating layer is provided with a first cavity and a second cavity which are staggered. The setting of the first cavity and the second cavity realizes the separation of the heat-insulating layer without affecting the structural strength of the heat-insulating layer. By setting a partition block in the first cavity with a larger chamber, both sides of the partition block are provided with a first heat-insulating filling and a second heat-insulating filling made of foamed polyurethane. The setting of the first heat-insulating filling and the second heat-insulating filling effectively isolates the heat transfer between the two sides of the heat-insulating layer, and the partition block separates the first heat-insulating filling and the second heat-insulating filling, further improving the heat transfer effect on both sides of the heat-insulating layer, thereby effectively improving the heat-insulating effect of the pipe body;

[0015] 2. The utility model arranges a corrosion-resistant inner layer inside the pipe body. The material of the corrosion-resistant inner layer is nitrile rubber, which can effectively prevent the fluid inside the pipe body from corroding the pipeline. By arranging a reinforcement layer of polyethylene material, the good chemical stability and structural strength of polyethylene can effectively improve the structural stability of the pipe body. By arranging a wear-resistant outer layer of polyvinyl chloride material, the good wear resistance of polyvinyl chloride can provide sufficient protection for the surface of the pipe body to ensure the service life of the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a side sectional schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. pipe body; 2. corrosion-resistant inner layer; 3. thermal insulation layer; 4. reinforcement layer; 5. wear-resistant outer layer; 6. first cavity; 7. second cavity; 8. support block; 9. partition block; 10. first thermal insulation filling; 11. second thermal insulation filling; 12. reinforcement ribs; 13. grooves. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-3 An environmentally friendly composite heat-insulating plastic pipe shown includes a pipe body 1, which includes a corrosion-resistant inner layer 2, a heat-insulating layer 3, a reinforcement layer 4 and a wear-resistant outer layer 5, wherein the corrosion-resistant inner layer 2, the heat-insulating layer 3, the reinforcement layer 4 and the wear-resistant outer layer 5 are arranged in sequence from the inside to the outside;

[0022] Specifically, the material of the corrosion-resistant inner layer 2 is nitrile rubber, and the thickness of the corrosion-resistant inner layer 2 is 1-1.2 mm, the material of the thermal insulation layer 3 is silicon carbide, and the thickness of the thermal insulation layer 3 is 3.5-5 mm, the material of the reinforcement layer 4 is polyethylene, and the thickness of the reinforcement layer 4 is 2-4 mm, and the material of the wear-resistant outer layer 5 is polyvinyl chloride, and the thickness of the wear-resistant outer layer 5 is 0.5-1 mm;

[0023] More specifically, a plurality of first cavities 6 and second cavities 7 are arranged inside the thermal insulation layer 3, the area of ​​the first cavity 6 is larger than that of the second cavity 7, and the plurality of first cavities 6 and second cavities 7 are arranged in a staggered manner. The staggered first cavities 6 and second cavities 7 can separate the thermal insulation layer 3 into two parts from the middle;

[0024] In addition, a support block 8 is fixedly provided inside the second cavity 7, and the support block 8 is set to a "Y"-shaped structure. The setting of the support block 8 can effectively improve the structural strength inside the first cavity 7. A partition block 9 is fixedly provided inside the first cavity 6, and the partition block 9 is set to a corrugated structure. The first thermal insulation filling 10 and the second thermal insulation filling 11 are respectively provided on both sides of the partition block 9. The materials of the first thermal insulation filling 10 and the second thermal insulation filling 11 are both foamed polyurethane. The partition block 9 separates the first thermal insulation filling 10 and the second thermal insulation filling 11, which can reduce the heat transfer effect between the first thermal insulation filling 10 and the second thermal insulation filling 11, thereby improving the thermal insulation effect of the pipe body;

[0025] Moreover, a plurality of reinforcing ribs 12 are arranged around the inner side of the corrosion-resistant inner layer 2, a plurality of grooves 13 are opened on the inner side of the reinforcing ribs 12, the reinforcing ribs 12 are arranged in a circular structure, and the plurality of reinforcing ribs 12 are arranged in a surrounding manner. The arrangement of the reinforcing ribs 12 can effectively improve the structural strength inside the pipe body 1, the grooves 13 are arranged in a "V"-shaped structure, and the plurality of grooves 13 are arranged at equal intervals. The arrangement of the grooves 13 facilitates the pipe body 1 to be properly bent during the laying process without being affected by the reinforcing ribs 12.

[0026] In summary, the utility model arranges the heat-insulating layer 3 inside the tube body 1, and the heat-insulating layer 3 is provided with the first cavity 6 and the second cavity 7 which are staggeredly distributed. The arrangement of the first cavity 6 and the second cavity 7 realizes the separation of the heat-insulating layer 3 without affecting the structural strength of the heat-insulating layer 3. By arranging a partition block 9 in the first cavity 6 with a larger chamber, the first heat-insulating filling 10 and the second heat-insulating filling 11 made of foamed polyurethane are arranged on both sides of the partition block 9. The arrangement of the first heat-insulating filling 10 and the second heat-insulating filling 11 effectively isolates the heat transfer between the two sides of the heat-insulating layer 3, and the partition block 9 separates the first heat-insulating filling 10 and the second heat-insulating filling 11. The second insulation filling 11 is separated, which further improves the heat transfer effect on both sides of the insulation layer 3, thereby effectively improving the insulation effect of the pipe body 1. By arranging a corrosion-resistant inner layer 2 inside the pipe body 1, the corrosion-resistant inner layer 2 is made of nitrile rubber, which can effectively prevent the fluid inside the pipe body 1 from corroding the pipeline. By arranging a reinforcement layer 4 made of polyethylene material, the good chemical stability and structural strength of polyethylene can effectively improve the structural stability of the pipe body 1. By arranging a wear-resistant outer layer 5 made of polyvinyl chloride, the good wear resistance of polyvinyl chloride can provide sufficient protection for the surface of the pipe body 1 to ensure the service life of the pipe body 1.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An environmentally friendly composite thermal insulation plastic pipe, comprising a pipe body (1), characterized in that: The tube body (1) comprises a corrosion-resistant inner layer (2), a thermal insulation layer (3), a reinforcement layer (4) and a wear-resistant outer layer (5), wherein the corrosion-resistant inner layer (2), the thermal insulation layer (3), the reinforcement layer (4) and the wear-resistant outer layer (5) are arranged in sequence from the inside to the outside, wherein a plurality of first cavities (6) and second cavities (7) are arranged inside the thermal insulation layer (3), wherein the plurality of first cavities (6) and second cavities (7) are arranged in a staggered manner, wherein a support block (8) is fixedly arranged inside the second cavity (7), and the support block (8) is arranged in a "Y"-shaped structure, wherein a partition block (9) is fixedly arranged inside the first cavity (6), and wherein the partition block (9) is arranged in a corrugated structure, wherein first thermal insulation filling (10) and second thermal insulation filling (11) are respectively arranged on both sides of the partition block (9), wherein a plurality of reinforcing ribs (12) are arranged around the inner side of the corrosion-resistant inner layer (2), and wherein a plurality of grooves (13) are opened on the inner side of the reinforcing ribs (12).

2. The environmentally friendly composite thermal insulation plastic pipe according to claim 1, characterized in that: The reinforcing ribs (12) are arranged in a circular structure, and a plurality of reinforcing ribs (12) are arranged in a circumferential manner; the grooves (13) are arranged in a "V"-shaped structure, and a plurality of grooves (13) are arranged at equal intervals.

3. The environmentally friendly composite thermal insulation plastic pipe according to claim 2, characterized in that: The first thermal insulation filler (10) and the second thermal insulation filler (11) are both made of foamed polyurethane.

4. The environmentally friendly composite thermal insulation plastic pipe according to claim 3, characterized in that: The material of the corrosion-resistant inner layer (2) is nitrile rubber, and the thickness of the corrosion-resistant inner layer (2) is 1-1.2 mm.

5. The environmentally friendly composite thermal insulation plastic pipe according to claim 4, characterized in that: The material of the thermal insulation layer (3) is silicon carbide, and the thickness of the thermal insulation layer (3) is 3.5-5 mm.

6. The environmentally friendly composite thermal insulation plastic pipe according to claim 5, characterized in that: The material of the reinforcement layer (4) is polyethylene, and the thickness of the reinforcement layer (4) is 2-4 mm. The material of the wear-resistant outer layer (5) is polyvinyl chloride, and the thickness of the wear-resistant outer layer (5) is 0.5-1 mm.

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