Multi-layer PVC pipe with good heat preservation effect

Abstract

The utility model discloses a multilayer PVC pipeline with good heat preservation effect, and particularly relates to the technical field of PVC pipeline, which comprises a fixing mechanism, a main body mechanism and a connecting mechanism, the outer diameter surface of the main body mechanism is provided with the fixing mechanism, the side of the fixing mechanism is provided with the connecting mechanism, the main body mechanism comprises a heat preservation assembly and an inner tube layer, the outer diameter surface of the inner tube layer is provided with the heat preservation assembly, the multilayer composite structure and the close connection mode of the heat preservation assembly are adopted, the heat preservation layer is used as the core heat preservation material, has a tubular annular structure, can wrap the inner tube layer in all directions, is closely bonded with the inner tube layer through the adhesive layer, eliminates the interlayer gap, avoids the heat loss caused by air convection, and reduces the heat transfer channel from the source. Meanwhile, the reflection layer welded on the outer diameter surface of the heat preservation layer can reflect the heat emitted by the inner tube layer back to the pipeline interior through reflecting heat radiation, further reducing heat loss.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe technology, and more specifically, to a multi-layer PVC pipe with good thermal insulation effect. Background Technology

[0002] In temporary construction scenarios, traditional pipelines suffer from problems such as poor insulation, insufficient joint sealing, unstable fixing, and inconvenience in disassembly and assembly. Temporarily constructed pipelines often need to transport media that require insulation, such as hot water. If the insulation is poor, heat will be lost quickly or the medium inside the pipe will deteriorate due to the influence of the ambient temperature. In addition, poor joint sealing can easily lead to leakage, which will affect the construction progress and waste resources.

[0003] Existing publication number CN223076471U discloses a low-temperature resistant PVC hose, including a hose body, a support frame within the hose wall, an insulation layer bonded to the outer surface of the hose body, several vacuum tubes embedded within the insulation layer, a low-temperature resistant layer bonded to the outer surface of the insulation layer, several first vacuum pads on the inner wall of the low-temperature resistant layer, a high-temperature resistant layer bonded to the outer surface of the low-temperature resistant layer, several second vacuum pads on the inner wall of the high-temperature resistant layer, and a wear-resistant layer bonded to the outer surface of the high-temperature resistant layer, with several wear-resistant protrusions on the outer wall of the wear-resistant layer. This PVC hose, by establishing a high-strength metal support frame within the hose body wall, enhances the PVC hose's resistance to deformation, reducing brittleness, impact cracking, and freezing cracking during use in low-temperature environments. The insulation layer, low-temperature resistant layer, high-temperature resistant layer, and the vacuum tubes, first vacuum pads, and second vacuum pads within each layer work together to enhance the PVC hose's insulation efficiency and effectively block external environmental interference. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] Traditional single-layer insulation PVC pipes are not tightly bonded to the inner layer of the pipe, which can easily create gaps that lead to air convection and significant heat loss. They also lack a reflective layer to reduce heat radiation loss. Furthermore, PVC pipes that rely solely on waterproof adhesive for sealing at both ends are unable to form an effective waterproof barrier, making them prone to media leakage and the intrusion of cold air from the outside.

[0005] Therefore, a multi-layer PVC pipe with good thermal insulation is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-layer PVC pipe with good thermal insulation effect to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer PVC pipe with good thermal insulation effect, comprising a fixing mechanism, a main body mechanism and a connecting mechanism, wherein the fixing mechanism is installed on the outer diameter surface of the main body mechanism and the connecting mechanism is installed on the side of the fixing mechanism, the main body mechanism includes a thermal insulation component and an inner pipe layer, and the thermal insulation component is installed on the outer diameter surface of the inner pipe layer.

[0008] Preferably, the fixing mechanism includes a sheath layer, a connecting layer, a T-shaped mounting block, and an anti-loosening component. The connecting layer is installed on the outer diameter surface of the sheath, the T-shaped mounting block is installed above the connecting layer, and the anti-loosening component is installed on the inner diameter surface of the T-shaped mounting block.

[0009] Preferably, the anti-loosening component includes a first anti-loosening washer, a second anti-loosening washer, and an anti-loosening bolt, wherein the first anti-loosening washer is installed on the outer diameter surface of the anti-loosening bolt, and the second anti-loosening washer is disposed below the first anti-loosening washer.

[0010] Preferably, the thermal insulation component includes a thermal insulation layer, a reflective layer, and an adhesive layer, wherein the reflective layer is installed on the outer diameter surface of the thermal insulation layer, and the adhesive layer is installed on the inner diameter surface of the thermal insulation layer.

[0011] Preferably, the connecting mechanism includes a sealing ring, waterproof tape, and a flange assembly, wherein the sealing ring is installed on the side of the flange assembly, and the waterproof tape is installed on the outer diameter surface of the sealing ring.

[0012] Preferably, the flange assembly includes a flange, fixing bolts and a rubber ring, and the rubber ring is installed on the inner diameter surface of the flange, and the fixing bolts are provided on the side of the rubber ring.

[0013] Preferably, the T-shaped mounting block is T-shaped in general, and the horizontal part is a flat block. The vertical part of the T-shaped mounting block and the groove on the surface of the connecting layer are connected by welding. Threaded holes are opened at both ends of the horizontal part of the T-shaped mounting block and are threadedly connected to the anti-loosening component.

[0014] Preferably, the insulation layer has a tubular structure with an annular cross-section, and the insulation layer and the reflective layer are connected by welding, and the insulation layer and the adhesive layer are bonded together.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with existing technologies, this multi-layer PVC pipe with good thermal insulation performance utilizes a multi-layer composite structure and tight connection method for its insulation components. The insulation layer, as the core insulation material, has a tubular ring structure that can completely wrap around the inner pipe layer. Through an adhesive layer, it is tightly bonded to the inner pipe layer, eliminating gaps between layers and preventing heat loss due to air convection, thus reducing heat transfer channels at the source. Simultaneously, a reflective layer welded to the outer surface of the insulation layer can reflect heat emitted from the inner pipe layer back into the pipe, further reducing heat loss.

[0017] 2. Compared with existing technologies, this multi-layer PVC pipe with good thermal insulation effect has a connection mechanism that makes the pipe easy to disassemble. When the pipe is used as a temporary facility on the construction site, when disassembling the connection mechanism, you only need to unscrew the fixing bolts of the flange assembly to separate the two sections of the pipe. When disassembling the fixing mechanism, loosen the anti-loosening bolts of the anti-loosening component and remove the first and second anti-loosening gaskets to remove the T-shaped mounting block from the wall. The whole process does not require damage to the main structure, insulation components and other structures, and all parts can be reused. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional cross-sectional structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the flange assembly of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the connecting mechanism of this utility model.

[0021] Figure 4 For the present utility model Figure 3 A schematic diagram of the structure at point A.

[0022] The attached figures are labeled as follows: 1. Fixing mechanism; 2. Main body mechanism; 3. Connecting mechanism; 4. Insulation component; 5. Inner tube layer; 6. Sheath layer; 7. Connecting layer; 8. T-shaped mounting block; 9. Anti-loosening component; 10. First anti-loosening gasket; 11. Second anti-loosening gasket; 12. Anti-loosening bolt; 13. Insulation layer; 14. Reflective layer; 15. Adhesive layer; 16. Sealing ring; 17. Waterproof tape; 18. Flange assembly; 19. Flange; 20. Fixing bolt; 21. Rubber ring. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] As attached Figures 1 to 4 The multi-layer PVC pipe with good thermal insulation effect shown includes a fixing mechanism 1, a main body 2 and a connecting mechanism 3. The fixing mechanism 1 is installed on the outer diameter surface of the main body 2, and the connecting mechanism 3 is installed on the side of the fixing mechanism 1. The main body 2 includes a thermal insulation component 4 and an inner pipe layer 5. The thermal insulation component 4 is installed on the outer diameter surface of the inner pipe layer 5.

[0026] In this multi-layer PVC pipe design with good insulation effect, the main body 2 is the core. The main body 2 includes an inner pipe layer 5 and an insulation component 4. The inner pipe layer 5 serves as the basic channel for medium transportation. The insulation component 4 is installed on its outer diameter surface to achieve the insulation function. The fixing mechanism 1 is installed on the outer diameter surface of the main body 2 to fix the entire pipe in the installation position and ensure the stability of the pipe. The connecting mechanism 3 is installed on the side of the fixing mechanism 1. The connecting mechanism 3 is used to realize the connection between different pipe sections. Through the cooperation of these three, a multi-layer PVC pipe system with both insulation effect and structural stability is formed.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0029] In a preferred embodiment, the fixing mechanism 1 includes a sheath layer 6, a connecting layer 7, a T-shaped mounting block 8, and an anti-loosening component 9. The connecting layer 7 is installed on the outer diameter surface of the sheath layer 6, and the T-shaped mounting block 8 is installed above the connecting layer 7. The anti-loosening component 9 is installed on the inner diameter surface of the T-shaped mounting block 8. The fixing mechanism 1 uses the sheath layer 6 as the outer protection and the connecting layer 7 as an intermediate transition structure to connect the T-shaped mounting block 8 to the sheath layer 6. The T-shaped mounting block 8 is fixedly connected to the external wall through the anti-loosening component 9 to achieve pipe fixing.

[0030] In a preferred embodiment, the anti-loosening assembly 9 includes a first anti-loosening washer 10, a second anti-loosening washer 11, and an anti-loosening bolt 12. The first anti-loosening washer 10 is mounted on the outer diameter surface of the anti-loosening bolt 12, and the second anti-loosening washer 11 is disposed below the first anti-loosening washer 10. The anti-loosening assembly 9 combines a bolt and two washers. The anti-loosening bolt 12 provides tightening force. The first anti-loosening washer 10 and the second anti-loosening washer 11 form an anti-loosening structure through the friction of their contact surfaces. The superposition of the two washers increases the frictional resistance between the bolt and the mounting surface, preventing the bolt from loosening due to vibration or stress relaxation.

[0031] In a preferred embodiment, the insulation component 4 includes an insulation layer 13, a reflective layer 14, and an adhesive layer 15. The reflective layer 14 is installed on the outer diameter surface of the insulation layer 13, and the adhesive layer 15 is installed on the inner diameter surface of the insulation layer 13. The insulation component 4 uses the insulation layer 13 as the core insulation material and is tightly bonded to the inner tube layer 5 through the adhesive layer 15 to reduce the gap in heat transfer. The reflective layer 14 covers the outside of the insulation layer 13 and reduces heat loss by reflecting heat radiation.

[0032] In a preferred embodiment, the connecting mechanism 3 includes a sealing ring 16, a waterproof tape 17, and a flange assembly 18. The sealing ring 16 is installed on the side of the flange assembly 18, and the waterproof tape 17 is installed on the outer diameter surface of the sealing ring 16. The connecting mechanism 3 uses the flange assembly 18 as the docking core. The sealing ring 16 is embedded in the flange docking surface to achieve a seal, and the waterproof tape 17 is wrapped around the outside of the sealing ring 16 to form a waterproof barrier, ensuring the sealing of the pipe joint.

[0033] In a preferred embodiment, the flange assembly 18 includes a flange 19, fixing bolts 20, and a rubber ring 21. The rubber ring 21 is installed on the inner diameter surface of the flange 19, and the fixing bolts 20 are provided on the side of the rubber ring 21. In the flange assembly 18, the flange 19 provides a mating mounting surface, the rubber ring 21 is embedded in the inner wall of the flange 19 and makes close contact with the outer wall of the mating pipe to form a radial seal, and the fixing bolts 20 are evenly distributed on the edge of the flange 19. The axial clamping force deforms the rubber ring 21 to enhance the sealing effect.

[0034] In a preferred embodiment, the T-shaped mounting block 8 is T-shaped in general, and the horizontal part is a flat block. The vertical part of the T-shaped mounting block 8 and the groove on the surface of the connecting layer 7 are connected by welding. Threaded holes are opened at both ends of the horizontal part of the T-shaped mounting block 8 and are threadedly connected to the anti-loosening component 9.

[0035] In a preferred embodiment, the insulation layer 13 has a tubular structure and an annular cross-section. The insulation layer 13 and the reflective layer 14 are connected by welding, and the insulation layer 13 and the adhesive layer 15 are bonded together.

[0036] The working process of this utility model is as follows: First, when the operator connects multiple pipe sections, the main body structure 2 of the two pipe sections to be connected is aligned to ensure that the inner pipe layer 5 port is flat. A sealing ring 16 is installed on the side of the flange 19 of the flange assembly 18 of one of the pipe connection mechanisms. Then, waterproof tape 17 is wrapped around the outer diameter surface of the sealing ring 16. Then, the flange 19 of the other pipe section is connected to the flange 19, so that the rubber ring 21 is in close contact with the outer wall of the connected pipe. Then, the fixing bolt 20 is passed through the bolt holes on the edges of the two flanges 19 and tightened. The axial clamping force deforms the rubber ring 21, thus completing the connection of multiple pipe sections.

[0037] After completing the multi-section connection of the pipeline, when the operator installs the pipeline onto the hanging wall, it is fixed by the fixing mechanism 1. First, the outer sheath layer 6 of the main body mechanism 2 provides outer protection, and the T-shaped mounting block 8 is connected to the sheath layer 6 by the connecting layer 7. The vertical part of the T-shaped mounting block 8 and the groove on the surface of the connecting layer 7 are fixed by welding. Then, the anti-loosening bolts 12 of the anti-loosening component 9 are passed through the threaded holes at both ends of the horizontal part of the T-shaped mounting block 8. After the first anti-loosening gasket 10 and the second anti-loosening gasket 11 are put on, they are tightened with the pre-set connectors of the hanging wall to realize the installation of the pipeline on the hanging wall. The inner pipe layer 5 of the main body mechanism 2 is formed by the adhesive layer 15, the insulation layer 13 and the reflective layer 14 in sequence to form the insulation component 4 to ensure the insulation effect. The above is the working principle of this multi-layer PVC pipeline with good insulation effect.

Claims

1. A multi-layer PVC pipe with good thermal insulation effect, comprising a fixing mechanism (1), a main body mechanism (2), and a connecting mechanism (3), characterized in that: The outer diameter surface of the main body (2) is equipped with a fixing mechanism (1), and the side of the fixing mechanism (1) is equipped with a connecting mechanism (3). The main body (2) includes a heat insulation component (4) and an inner tube layer (5), and the outer diameter surface of the inner tube layer (5) is equipped with a heat insulation component (4).

2. The multi-layer PVC pipe with good thermal insulation effect according to claim 1, characterized in that: The fixing mechanism (1) includes a sheath layer (6), a connecting layer (7), a T-shaped mounting block (8) and an anti-loosening component (9). The connecting layer (7) is installed on the outer diameter surface of the sheath layer (6), the T-shaped mounting block (8) is installed above the connecting layer (7), and the anti-loosening component (9) is installed on the inner diameter surface of the T-shaped mounting block (8).

3. The multi-layer PVC pipe with good thermal insulation effect according to claim 2, characterized in that: The anti-loosening component (9) includes a first anti-loosening washer (10), a second anti-loosening washer (11) and an anti-loosening bolt (12), and the first anti-loosening washer (10) is installed on the outer diameter surface of the anti-loosening bolt (12), and the second anti-loosening washer (11) is provided below the first anti-loosening washer (10).

4. The multi-layer PVC pipe with good thermal insulation effect according to claim 1, characterized in that: The insulation component (4) includes an insulation layer (13), a reflective layer (14) and an adhesive layer (15), and the outer diameter surface of the insulation layer (13) is provided with the reflective layer (14), and the inner diameter surface of the insulation layer (13) is provided with the adhesive layer (15).

5. The multi-layer PVC pipe with good thermal insulation effect according to claim 1, characterized in that: The connecting mechanism (3) includes a sealing ring (16), a waterproof tape (17) and a flange assembly (18), and the sealing ring (16) is installed on the side of the flange assembly (18), and the waterproof tape (17) is installed on the outer diameter surface of the sealing ring (16).

6. The multi-layer PVC pipe with good thermal insulation effect according to claim 5, characterized in that: The flange assembly (18) includes a flange (19), fixing bolts (20) and a rubber ring (21), and the inner diameter surface of the flange (19) is fitted with a rubber ring (21), and the side of the rubber ring (21) is provided with fixing bolts (20).

7. A multi-layer PVC pipe with good thermal insulation effect according to claim 2, characterized in that: The T-shaped mounting block (8) is T-shaped in general, and the horizontal part is a flat block. The vertical part of the T-shaped mounting block (8) and the groove on the surface of the connecting layer (7) are connected by welding. The two ends of the horizontal part of the T-shaped mounting block (8) are provided with threaded holes and are threadedly connected to the anti-loosening component (9).

8. A multi-layer PVC pipe with good thermal insulation effect according to claim 4, characterized in that: The insulation layer (13) has a tubular structure and an annular cross-section. The insulation layer (13) and the reflective layer (14) are connected by welding, and the insulation layer (13) and the adhesive layer (15) are bonded together.

Images