A pipe insulation structure

The pipe insulation structure, with its layered design and fastener connections, solves the problems of inconvenient installation and insufficient sealing in existing technologies, achieving convenient installation, enhanced insulation performance and structural stability, and extended service life.

CN224433903UActive Publication Date: 2026-06-30HUACHUAN CONSTR GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUACHUAN CONSTR GRP CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing pipe insulation structures suffer from problems such as inconvenient installation and disassembly, unstable connections, poor moisture-proof performance, and insufficient sealing at the edges, which affect insulation performance and service life.

Method used

The pipe insulation structure adopts a layered design, including a first pipe body, a first insulation layer, and a first protective layer. It is detachably connected by fasteners, and the tightness of the connection is enhanced by elastic protrusions, guide structures, and sealing strips. Rubber and plastic materials are used as the insulation material layer to improve the insulation performance.

Benefits of technology

It enables convenient installation and disassembly, enhances thermal insulation performance, improves structural stability and durability, reduces heat loss, blocks external moisture and dust, and extends service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224433903U_ABST
    Figure CN224433903U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of pipeline technology, and in particular discloses a pipeline insulation structure, including a first pipe body, a first insulation layer covering the outside of the first pipe body, and a first protective layer covering the outside of the first insulation layer. The first protective layer includes a first main body, a first through hole and a second through hole respectively disposed on both sides of the first main body, and fasteners. The first main body covers the first insulation layer, and the two sides of the first main body are detachably connected by fasteners passing through the first through hole and the second through hole. The detachable connection design of the first protective layer facilitates installation, disassembly, and subsequent maintenance and replacement. The first insulation layer can effectively reduce heat loss in the pipeline, while the first protective layer provides reliable protection for the internal structure. The overall structure has strong stability and high practicality.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular discloses a pipeline insulation structure. Background Technology

[0002] In pipeline transmission applications, the pipeline insulation structure is crucial for reducing heat loss, protecting the pipeline, and maintaining stable medium temperature. Existing pipeline insulation structures typically include the pipe body and an outer insulation layer. However, some structures suffer from problems such as inconvenient installation and disassembly of the insulation layer, insufficiently secure and tight connections between layers, poor moisture resistance, and inadequate sealing at the edges. These issues affect the pipeline's insulation performance and service life. Therefore, it is necessary to improve and optimize the pipeline insulation structure. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a pipe insulation structure.

[0004] To achieve the above objectives, the present invention provides a pipe insulation structure, comprising a first pipe body, a first insulation layer covering the outside of the first pipe body, and a first protective layer covering the outside of the first insulation layer; the first protective layer comprises a first main body, a first through hole and a second through hole respectively disposed on both sides of the first main body, and fasteners, the first main body covering the first insulation layer, and the two sides of the first main body being detachably connected by fasteners passing through the first through hole and the second through hole.

[0005] The detachable connection design of the first protective layer facilitates installation, disassembly, and subsequent maintenance and replacement. The first insulation layer effectively reduces heat loss from the pipeline, while the first protective layer provides reliable protection for the internal structure, resulting in a highly stable and practical overall structure. In practice, the first insulation layer is first wrapped around the outside of the first pipe body, then the first main body of the first protective layer is wrapped around the first insulation layer, aligning the two sides of the first main body. Finally, fasteners are passed through the first and second through holes on both sides to securely connect the first main body, completing the assembly of the entire pipeline insulation structure.

[0006] The first insulation layer includes a first adhesive layer disposed on the outside of the first pipe body, a heat insulation material layer disposed on the outside of the first adhesive layer, and a first moisture-proof layer disposed on the outside of the heat insulation material layer.

[0007] The first adhesive layer ensures a secure connection between the insulation layer and the first pipe body, preventing detachment. The insulation material layer effectively blocks heat transfer, improving insulation performance. The first moisture-proof layer prevents external moisture from intruding, avoiding moisture affecting the insulation effect. The synergistic effect of these three layers significantly enhances the overall reliability and durability of the insulation. In practice, the first adhesive layer is first evenly laid on the outside of the first pipe body, then the insulation material layer is adhered to the outside of the first adhesive layer, and finally the first moisture-proof layer is placed on the outside of the insulation material layer, so that the three layers are tightly bonded together to form a complete first insulation layer.

[0008] The thickness of the insulation material layer is 10-30mm.

[0009] This thickness range ensures good thermal insulation performance while avoiding material waste and structural bulkiness due to excessive thickness, and also prevents compromised insulation effectiveness due to insufficient thickness. It allows for flexible selection based on the insulation requirements of different pipelines, balancing economy and practicality. In practice, the specific thickness of the insulation material layer is determined within the range of 10-30mm based on the diameter of the first pipe body, the temperature of the transported medium, and the operating environment. Installation is then carried out in the following order: first, lay the first adhesive layer, then attach the corresponding thickness of the insulation material layer to the outside of the first adhesive layer, ensuring uniform coverage and consistent thickness of the insulation material layer.

[0010] The insulation layer is made of rubber and plastic. Rubber and plastic materials have excellent thermal insulation properties, which can effectively reduce heat loss from pipes. At the same time, they are soft, tough, easy to cut and fit pipes of different shapes, and easy to install. In addition, rubber and plastic materials also have certain moisture-proof and corrosion-proof properties, which can extend the service life of the insulation layer. They also have good chemical stability and can adapt to a variety of operating environments.

[0011] The first main body of the first protective layer has a plurality of elastic protrusions spaced apart on the side near the first moisture-proof layer. The elastic protrusions are evenly distributed along the circumference of the first main body and abut against the outer surface of the first moisture-proof layer.

[0012] The elastic protrusions exert uniform elastic pressure on the first moisture-proof layer, ensuring a tighter bond between the moisture-proof layer and the insulation material layer, reducing interlayer gaps, and improving the overall structural stability. Simultaneously, the elastic protrusions buffer external impacts on the first protective layer, preventing damage to both the moisture-proof layer and the insulation material layer due to rigid collisions, thus extending the service life of the insulation structure. In practice, multiple elastic protrusions are evenly spaced circumferentially on the inner wall of the first main body. During installation of the first protective layer, each elastic protrusion is ensured to be in close contact with the outer surface of the first moisture-proof layer. The elastic deformation of the protrusions generates continuous pressure, achieving a stable press on the first moisture-proof layer.

[0013] The first moisture-proof layer has a guide strip extending along its axial direction on the side near the first protective layer, and the first protective layer has a guide groove extending along its axial direction on the side near the first moisture-proof layer, with the guide strip of the first moisture-proof layer being accommodated in the guide groove of the first protective layer.

[0014] The guide strip of the first moisture-proof layer is housed within the guide groove of the first protective layer. Its advantages include: accurately guiding the installation and positioning of the first protective layer and the first moisture-proof layer, preventing relative misalignment in the axial direction, ensuring the accuracy of the first protective layer's coverage of the first insulation layer, and enhancing the tightness of the connection between the two, thus improving the overall structural stability. In practice, a guide strip is machined axially on the side of the first moisture-proof layer closest to the first protective layer, and a guide groove adapted to the guide strip is machined axially on the side of the first protective layer closest to the first moisture-proof layer. During installation, the guide strip is aligned with the guide groove and pushed axially until it is fully housed within the guide groove, completing the installation of the first moisture-proof layer and the first protective layer.

[0015] The guide strip has an isosceles trapezoidal cross-section, with the top width being smaller than the bottom width. The cross-sectional shape of the guide groove is adapted to the guide strip, and the guide strip and the first moisture-proof layer are integrally formed.

[0016] The isosceles trapezoidal structure allows the guide strip and guide groove to form a wedge-shaped fit, enhancing the connection strength, preventing axial slippage, and improving structural stability. The one-piece molding design ensures the integrity and strength of the connection between the guide strip and the first moisture-proof layer, reducing the risk of detachment and simplifying the processing flow. In practice, when manufacturing the first moisture-proof layer, a guide strip with an isosceles trapezoidal cross-section is integrally molded using a mold, with its top width smaller than its bottom width. A guide groove with a matching cross-sectional shape is then machined. During installation, the guide strip is slid axially into the guide groove, utilizing the self-locking property of the trapezoidal structure to achieve a stable fit.

[0017] The fastener consists of multiple sets of screws.

[0018] The threaded design ensures a tight fit with the connecting surface, providing a secure connection and effectively preventing loosening, thus guaranteeing stable coverage of the first protective layer. Furthermore, it is easy to disassemble, facilitating future maintenance, repair, or replacement of components in the pipe insulation structure, making it highly adaptable.

[0019] The first main body is provided with sealing strips on both sides, and the first through hole and the second through hole pass through the sealing strips on both sides respectively.

[0020] The sealing strip fills the gaps at the connection points on both sides of the first main body, effectively preventing external moisture and dust from intruding, enhancing overall sealing performance, and protecting the internal insulation layer from moisture and contamination. The first and second through holes penetrate the sealing strip, allowing fasteners to simultaneously press the strip together, ensuring a strong connection and further improving the sealing effect without compromising ease of assembly and disassembly. In practice, sealing strips are installed on both sides of the first main body, ensuring the first and second through holes correspond and penetrate the strips. After aligning the sides, fasteners are passed through the through holes and tightened, causing the sealing strips to fit tightly under the pressure of the fasteners, achieving both sealing and fixing effects.

[0021] An extension is provided at the edge of the first adhesive layer, which extends 5-10 mm outward from the outside of the insulation material layer and is in contact with the inner wall of the first moisture-proof layer.

[0022] The extension fills the gap between the first adhesive layer and the first moisture-proof layer, enhancing the tightness of their connection and preventing moisture from seeping into the insulation material layer due to gaps. Simultaneously, the extension provides some fixation for the first moisture-proof layer, preventing it from shifting during use and further ensuring the integrity and moisture-proof insulation effect of the first insulation layer. In practice, when laying the first adhesive layer, its edge extension naturally extends 5-10mm outwards from the insulation material layer. After the insulation material layer is installed, the first moisture-proof layer is placed over it, ensuring a tight fit between the extension and the inner wall of the first moisture-proof layer, achieving a seamless connection between the layers.

[0023] The beneficial effects of this utility model are as follows: The principle of this pipe insulation structure lies in achieving multiple functions synergistically through a layered design. The first adhesive layer firmly connects the pipe body and the insulation layer; the insulation material layer blocks heat transfer; the first moisture-proof layer prevents water vapor intrusion; and the first protective layer provides external protection. The connection tightness and stability are enhanced between each layer through designs such as elastic protrusions, guide structures, sealing strips, and extensions. Its beneficial effects are significant; it not only effectively reduces heat loss from the pipe and improves insulation performance, but also blocks external water vapor and dust, extending the service life of the structure. Furthermore, it is easy to install and disassemble, facilitating later maintenance and repair. It can flexibly adapt to the insulation needs of different pipes, combining economy and practicality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the unfolded structure of the first protective layer of this utility model;

[0026] Figure 3 This is a cross-sectional view of the first insulation layer of this utility model.

[0027] The reference numerals in the figures include:

[0028] 1. First pipe body; 2. First insulation layer; 3. First protective layer; 4. First main body; 5. First through hole;

[0029] 6. Second through hole; 7. Fastener; 8. First adhesive layer; 9. Insulation material layer; 11. First moisture-proof layer;

[0030] 12. Elastic protrusion; 13. Guide strip; 14. Guide groove; 15. Sealing strip. Detailed Implementation

[0031] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0032] Please see Figures 1 to 3 As shown, a pipe insulation structure of the present invention includes a first pipe body 1, a first insulation layer 2 covering the outside of the first pipe body 1, and a first protective layer 3 covering the outside of the first insulation layer 2. The first protective layer 3 includes a first main body 4, a first through hole 5 and a second through hole 6 respectively disposed on both sides of the first main body 4, and fasteners 7. The first main body 4 covers the first insulation layer 2, and the two sides of the first main body 4 are detachably connected by fasteners 7 passing through the first through hole 5 and the second through hole 6.

[0033] The detachable connection design of the first protective layer 3 facilitates installation, disassembly, and subsequent maintenance and replacement. The first insulation layer 2 effectively reduces heat loss from the pipeline, while the first protective layer 3 provides reliable protection for the internal structure, resulting in a highly stable and practical overall structure. In specific implementation, the first insulation layer 2 is first wrapped around the outside of the first pipe body 1, and then the first main body 4 of the first protective layer 3 is wrapped around the first insulation layer 2, aligning the two sides of the first main body 4. Finally, fasteners 7 are used to pass through the first through holes 5 and the second through holes 6 on both sides to achieve a fixed connection of the first main body 4, completing the assembly of the entire pipeline insulation structure.

[0034] The first insulation layer 2 includes a first adhesive layer 8 disposed on the outside of the first pipe body 1, a heat insulation material layer 9 disposed on the outside of the first adhesive layer 8, and a first moisture-proof layer 11 disposed on the outside of the heat insulation material layer 9.

[0035] The first adhesive layer 8 ensures a secure connection between the insulation layer and the first pipe body 1, preventing detachment. The insulation material layer 9 effectively blocks heat transfer, improving insulation performance. The first moisture-proof layer 11 prevents external moisture from intruding, avoiding moisture affecting the insulation effect of the insulation material layer 9. The synergistic effect of these three layers significantly enhances the overall reliability and durability of the insulation. In specific implementation, the first adhesive layer 8 is first evenly laid on the outside of the first pipe body 1, then the insulation material layer 9 is adhered to the outside of the first adhesive layer 8, and finally the first moisture-proof layer 11 is set on the outside of the insulation material layer 9, so that the three layers are tightly combined to form a complete first insulation layer 2.

[0036] The thickness of the insulation material layer 9 is 10-30mm.

[0037] This thickness range ensures good thermal insulation performance while avoiding material waste and structural bulkiness due to excessive thickness, and also prevents compromised insulation effectiveness due to insufficient thickness. It allows for flexible selection based on the insulation requirements of different pipelines, balancing economy and practicality. In practice, the specific thickness of the insulation material layer 9 is determined within the range of 10-30mm based on the diameter of the first pipe body 1, the temperature of the transported medium, and the operating environment. Then, the insulation material layer 9 is installed in the order of first laying the first adhesive layer 8, and then attaching the insulation material layer 9 of the corresponding thickness to the outside of the first adhesive layer 8, ensuring uniform coverage and consistent thickness of the insulation material layer 9.

[0038] The insulation layer 9 is made of rubber and plastic material. Rubber and plastic material itself has excellent thermal insulation properties, which can effectively reduce heat loss from the pipeline. At the same time, it is soft and tough, easy to cut and fit to pipelines of different shapes, and easy to install. In addition, rubber and plastic material also has certain moisture-proof and corrosion-proof properties, which can extend the service life of the insulation layer 9, and has good chemical stability, which can adapt to a variety of operating environments.

[0039] The first main body 4 of the first protective layer 3 is provided with a plurality of elastic protrusions 12 at intervals on the side near the first moisture-proof layer 11. The elastic protrusions 12 are evenly distributed along the circumference of the first main body 4 and abut against the outer surface of the first moisture-proof layer 11.

[0040] The elastic protrusions 12 can form uniform elastic pressure on the first moisture-proof layer 11, making the first moisture-proof layer 11 and the insulation material layer 9 fit more tightly, reducing interlayer gaps and improving the overall structural stability. At the same time, the elastic protrusions 12 can buffer external impacts on the first protective layer 3, preventing damage to the first moisture-proof layer 11 and the insulation material layer 9 due to rigid collisions, and extending the service life of the insulation structure. In specific implementation, multiple elastic protrusions 12 are arranged at uniform circumferential intervals on the inner sidewall of the first main body 4. When installing the first protective layer 3, it is ensured that each elastic protrusion 12 is in close contact with the outer surface of the first moisture-proof layer 11. The elastic deformation of the elastic protrusions 12 generates continuous pressure, achieving a stable pressing of the first moisture-proof layer 11.

[0041] The first moisture-proof layer 11 has a guide strip 13 extending along its axial direction on the side near the first protective layer 3, and the first protective layer 3 has a guide groove 14 extending along its axial direction on the side near the first moisture-proof layer 11. The guide strip 13 of the first moisture-proof layer 11 is accommodated in the guide groove 14 of the first protective layer 3.

[0042] The guide strip 13 of the first moisture-proof layer 11 is housed within the guide groove 14 of the first protective layer 3. Its beneficial effects are: it accurately guides the installation and positioning of the first protective layer 3 and the first moisture-proof layer 11, preventing relative misalignment in the axial direction, ensuring the accuracy of the first protective layer 3's coverage of the first insulation layer 2, and enhancing the tightness of the connection between the two, thus improving the overall structural stability. In specific implementation, a guide strip 13 is machined axially on the side of the first moisture-proof layer 11 closest to the first protective layer 3, and a guide groove 14 adapted to the guide strip 13 is machined axially on the side of the first protective layer 3 closest to the first moisture-proof layer 11. During installation, the guide strip 13 is aligned with the guide groove 14 and pushed axially into place, ensuring the guide strip 13 is fully housed within the guide groove 14, thus completing the installation of the first moisture-proof layer 11 and the first protective layer 3.

[0043] The guide strip 13 has an isosceles trapezoidal cross section, the top width of the guide strip 13 is smaller than the bottom width, the cross section shape of the guide groove 14 is adapted to the guide strip 13, and the guide strip 13 and the first moisture-proof layer 11 are integrally formed.

[0044] The isosceles trapezoidal structure allows the guide strip 13 and the guide groove 14 to form a wedge-shaped fit, enhancing the connection between the two, preventing axial slippage, and improving structural stability. The one-piece molding design ensures the integrity and strength of the connection between the guide strip 13 and the first moisture-proof layer 11, reducing the risk of detachment and simplifying the processing flow. In specific implementation, when manufacturing the first moisture-proof layer 11, the guide strip 13 with an isosceles trapezoidal cross-section is integrally molded using a mold, making its top width smaller than its bottom width. Then, a guide groove 14 with a matching cross-sectional shape is machined accordingly. During installation, the guide strip 13 is slid axially into the guide groove 14, and the self-locking characteristic of the trapezoidal structure is used to achieve a stable fit.

[0045] The fastener 7 consists of multiple sets of screws.

[0046] The threaded design ensures a tight fit with the connecting surface, providing a secure connection and effectively preventing loosening, thus guaranteeing stable coverage of the first protective layer 3. Furthermore, it is easy to disassemble, facilitating future maintenance, repair, or replacement of components in the pipe insulation structure, making it highly adaptable.

[0047] The first main body 4 is provided with sealing strips 15 on both sides, and the first through hole 5 and the second through hole 6 respectively pass through the sealing strips 15 on both sides.

[0048] The sealing strip 15 fills the gaps at the connection between the two sides of the first main body 4, effectively preventing external moisture and dust from intruding, enhancing the overall sealing performance, and protecting the internal insulation layer from moisture and contamination. The first through hole 5 and the second through hole 6 penetrate the sealing strip 15, allowing the fastener 7 to simultaneously press the sealing strip 15 when it passes through, ensuring both the strength of the connection and further improving the sealing effect without affecting the ease of assembly and disassembly. In practice, sealing strips 15 are installed on both sides of the first main body 4, ensuring that the first through hole 5 and the second through hole 6 correspondingly penetrate the sealing strip 15. After aligning the two sides, the fastener 7 is passed through the through holes and tightened, causing the sealing strip 15 to fit tightly under the pressure of the fastener 7, achieving both sealing and fixing effects.

[0049] An extension is provided at the edge of the first adhesive layer 8, which extends 5-10 mm outward toward the outside of the insulation material layer 9 and is in contact with the inner wall of the first moisture-proof layer 11.

[0050] The extension fills the gap between the first adhesive layer 8 and the first moisture-proof layer 11, enhancing the tightness of their connection and preventing moisture from seeping into the insulation material layer 9 due to the gap. Simultaneously, the extension provides a certain degree of fixation for the first moisture-proof layer 11, preventing it from shifting during use and further ensuring the integrity and moisture-proof insulation effect of the first insulation layer 2. In specific implementation, when laying the first adhesive layer 8, its edge extension naturally extends 5-10mm outwards towards the outside of the insulation material layer 9. After the insulation material layer 9 is installed, the first moisture-proof layer 11 is placed over the outside of the insulation material layer 9, ensuring that the extension is tightly fitted to the inner wall of the first moisture-proof layer 11, achieving a seamless connection between the layers.

[0051] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A pipe insulation structure, characterized in that: It includes a first tube body (1), a first insulation layer (2) covering the outside of the first tube body (1), and a first protective layer (3) covering the outside of the first insulation layer (2). The first protective layer (3) includes a first main body (4), a first through hole (5), a second through hole (6) respectively provided on both sides of the first main body (4), and fasteners (7). The first main body (4) covers the first insulation layer (2), and the two sides of the first main body (4) are detachably connected by fasteners (7) passing through the first through hole (5) and the second through hole (6).

2. The pipe insulation structure according to claim 1, characterized in that: The first insulation layer (2) includes a first adhesive layer (8) disposed on the outside of the first pipe body (1), a heat insulation material layer (9) disposed on the outside of the first adhesive layer (8), and a first moisture-proof layer (11) disposed on the outside of the heat insulation material layer (9).

3. The pipe insulation structure according to claim 2, characterized in that: The thickness of the insulation material layer (9) is 10-30 mm.

4. The pipe insulation structure according to claim 2, characterized in that: The insulation material layer (9) is made of rubber and plastic material.

5. A pipe insulation structure according to claim 2, characterized in that: The first main body (4) of the first protective layer (3) is provided with a plurality of elastic protrusions (12) at intervals on the side near the first moisture-proof layer (11). The elastic protrusions (12) are evenly distributed along the circumference of the first main body (4) and abut against the outer surface of the first moisture-proof layer (11).

6. A pipe insulation structure according to claim 2, characterized in that: The first moisture-proof layer (11) has a guide strip (13) extending along its axial direction on the side near the first protective layer (3), and the first protective layer (3) has a guide groove (14) extending along its axial direction on the side near the first moisture-proof layer (11). The guide strip (13) of the first moisture-proof layer (11) is accommodated in the guide groove (14) of the first protective layer (3).

7. A pipe insulation structure according to claim 6, characterized in that: The guide strip (13) has an isosceles trapezoidal cross section. The top width of the guide strip (13) is smaller than the bottom width. The cross section shape of the guide groove (14) is adapted to the guide strip (13). The guide strip (13) and the first moisture-proof layer (11) are integrally formed.

8. The pipe insulation structure according to claim 1, characterized in that: The fastener (7) consists of multiple sets of screws.

9. A pipe insulation structure according to claim 1, characterized in that: The first main body (4) is provided with sealing strips (15) on both sides, and the first through hole (5) and the second through hole (6) pass through the sealing strips (15) on both sides respectively.

10. A pipe insulation structure according to claim 2, characterized in that: An extension is provided at the edge of the first adhesive layer (8), which extends 5-10 mm outward toward the outside of the heat insulation material layer (9) and is attached to the inner wall of the first moisture-proof layer (11).