Heat-resistant pe-rtii heating pipe

Abstract

The utility model discloses a kind of heat-resistant PE-RTII heat supply pipes, including core pipe, the outside of core pipe is sequentially provided with heat preservation layer, protective layer structure and outer tube layer structure, annular gap is formed between protective layer structure and appearance layer structure, multiple radial reinforcing plates are provided in annular gap, the both ends of heat supply pipe are first connecting end and second connecting end respectively, first connecting end is provided with first connecting body and first connecting component, second connecting end is provided with first connecting part and second connecting component, first connecting component and second connecting component are respectively installed on the outside of heat supply pipe. The heat-resistant PE-RTII heat supply pipe provided by the utility model can realize the connection between two heat supply pipes through first connecting body and first connecting part, the connecting place cannot be exposed, and the two heat supply pipes are fixedly connected by first connecting component and second connecting component, which not only improves the convenience of installation and connection, but also forms a protective structure at the connecting place of the heat supply pipe.

Description

Technical Field

[0001] This utility model relates to the field of heating pipe technology, and in particular to heat-resistant PE-RTII heating pipe. Background Technology

[0002] PE-RTⅡ pipe is made of linear low-density polyethylene copolymerized with one of octene, hexene, or butene. Currently, the most widely used type is PE-RTⅡ pipe copolymerized with LLDPE and hexene. It has excellent long-term hydrostatic strength, impact resistance, crack resistance, and scratch resistance without cross-linking, and also has excellent high-temperature resistance, making it suitable for high-temperature piping systems below 95℃.

[0003] For example, the patent application document with authorization announcement number CN212056181U and titled "A Heat-Resistant PE-RTⅡ Heating Pipe" includes an inner layer, which is cylindrical in shape. Outside the inner layer, a reflective layer, a first fastening layer, a first insulation layer, a second fastening layer, a second insulation layer, and an outer layer are sequentially arranged. Existing PE-RTⅡ pipes often use heat fusion technology at the connection points, which often involves removing other layers outside the inner layer (such as the insulation layer, fastening layer, and outer layer). After heat fusion, the inner layer of the pipe is directly exposed at the connection point. Because the insulation layer is not effectively restored, the pipe is easily damaged, and heat is lost due to the lack of insulation. Utility Model Content

[0004] The purpose of this invention is to provide a heat-resistant PE-RTII heating pipe to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A heat-resistant PE-RTII heating pipe includes a core tube. An insulation layer, a protective layer structure, and an outer tube layer structure are sequentially arranged on the outer side of the core tube. An annular gap is formed between the protective layer structure and the outer tube layer structure. Multiple radial reinforcing plates are arranged within the annular gap. The two ends of the heating pipe are a first connecting end and a second connecting end, respectively. The first connecting end is provided with a first connecting body and a first connecting member. The second connecting end is provided with a first connecting portion and a second connecting member. The first connecting body and the first connecting portion are integrally formed with the heating pipe. The first connecting body can be embedded in the first connecting portion. The first connecting member and the second connecting member are respectively installed on the outer side of the heating pipe and can be fixedly connected together.

[0006] In the aforementioned heat-resistant PE-RTII heating pipe, the protective layer structure is fixed around the insulation layer, and the outer pipe layer structure is connected to the protective layer structure.

[0007] In the aforementioned heat-resistant PE-RTII heating pipe, multiple radial reinforcing plates are arranged sequentially at intervals along the circumference of the annular gap. The two sides of each radial reinforcing plate are connected to the protective layer structure and the outer pipe layer structure, respectively, and an arc-shaped connecting gap is formed between the radial reinforcing plates.

[0008] In the aforementioned heat-resistant PE-RTII heating pipe, the core tube and insulation layer at the first connection end extend outward to form the first connector.

[0009] In the aforementioned heat-resistant PE-RTII heating pipe, the protective layer structure, the radial reinforcing plate, and the outer pipe layer structure are all connected to an annular end plate at the end of the first connection end. The annular end plate is provided with multiple connecting protrusions, which are arranged sequentially at intervals along the circumference of the annular end plate. The connecting protrusions can be embedded into the arc-shaped connection gap.

[0010] In the aforementioned heat-resistant PE-RTII heating pipe, the first connecting part is an annular connecting groove formed by the inward indentation of the core tube and the insulation layer at the second connecting end, and the first connecting body can be embedded and connected to the annular connecting groove.

[0011] The aforementioned heat-resistant PE-RTII heating pipe, wherein the first connecting member includes a first annular mounting plate, the first annular mounting plate is fixedly mounted on the outer pipe layer structure at the first connecting end, the first annular mounting plate is provided with an annular side plate, and an annular mounting gap is formed between the annular side plate and the outer pipe layer structure.

[0012] The aforementioned heat-resistant PE-RTII heating pipe has interconnected mounting screw holes on the first annular mounting plate and the annular side plate. There are multiple mounting screw holes, which are arranged sequentially at intervals along the circumference of the first annular mounting plate.

[0013] The aforementioned heat-resistant PE-RTII heating pipe, wherein the second connecting component includes a second annular mounting plate, the second annular mounting plate is fixedly mounted on the outer pipe layer structure of the second connecting end, and an annular connector is provided on the second annular mounting plate, the annular connector being able to be embedded into the annular mounting gap.

[0014] The aforementioned heat-resistant PE-RTII heating pipe has multiple connecting screw holes on the second annular mounting plate. These connecting screw holes are arranged sequentially at intervals along the circumference of the second annular mounting plate, and the connecting screw holes and the mounting screw holes can be located on the same axis in a one-to-one correspondence.

[0015] In the above technical solution, the heat-resistant PE-RTII heating pipe provided by this utility model has an insulation layer, a protective layer structure, and an outer pipe layer structure arranged sequentially on the outside of the core pipe. An annular gap is formed between the protective layer structure and the outer pipe layer structure. Multiple radial reinforcing plates are arranged in the annular gap. The two ends of the heating pipe are a first connecting end and a second connecting end, respectively. The first connecting end is provided with a first connecting body and a first connecting member, and the second connecting end is provided with a first connecting part and a second connecting member. The connection between the two heating pipes can be realized through the first connecting body and the first connecting part. After the connection is completed, the connection point of the heating pipe will not be exposed, thus improving the insulation effect. At the same time, the first connecting member and the second connecting member fix the two heating pipes together. The first connecting member and the second connecting member can not only improve the convenience of installation and connection, but also form a protective structure at the connection point of the heating pipe, protecting the connection point of the heating pipe and improving the insulation effect at the connection point of the heating pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of the heating pipe provided in an embodiment of the present utility model; Figure 2 A front view of the heating pipe provided in an embodiment of this utility model; Figure 3 A schematic diagram showing the connection between the first heating pipe and the second heating pipe provided in an embodiment of this utility model; Figure 4 A cross-sectional view showing the installation process of the first heating pipe and the second heating pipe provided in this embodiment of the utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Heating pipe; 11. Core pipe; 12. Insulation layer; 13. Protective layer structure; 14. Outer pipe layer structure; 15. Annular gap; 16. Radial reinforcing plate; 17. Arc-shaped connection gap; 18. First heating pipe; 19. First heating pipe; 2. First connecting end; 21. First connecting body; 22. Annular end plate; 23. Connecting protrusion; 24. First connecting component; 241. First annular mounting plate; 242. Annular side plate; 243. Annular mounting gap; 244. Mounting screw hole; 3. Second connecting end; 31. First connecting part; 311. Annular connecting groove; 32. Second connecting component; 321. Second annular mounting plate; 322. Annular connecting body; 4. Connecting screw. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, the heat-resistant PE-RTII heating pipe provided by this utility model includes a core pipe 11 and an insulation layer 12, a protective layer structure 13, and an outer pipe layer structure 14 disposed on the core pipe 11. The core pipe 11 is made of PE-RTIII pipe material, which has excellent high temperature resistance and pressure resistance. The size of the core pipe 11 is set as needed. The insulation layer 12, the protective layer structure 13, and the outer pipe layer structure 14 are arranged sequentially from the inside to the outside of the core pipe 11. The insulation layer 12 is fixed around the core pipe 11 and is made of polyurethane (PU) foam, which has excellent insulation performance. The protective layer structure 13 is fixed around the insulation layer 12 and is made of HDPE pipe, but other materials can also be used. The outer pipe layer structure 14 is disposed around the protective layer, and an annular gap 15 is formed between the protective layer structure 13 and the outer pipe layer structure 14. The outer pipe layer structure 14 can be made of high-density polyethylene, which has high mechanical strength, corrosion resistance, and leak-proof properties. The annular gap 15 can improve the heat preservation effect of the heating pipe 1 and reduce the heat loss of the heating pipe 1 to the outside. A plurality of radial reinforcing plates 16 are arranged inside the annular gap 15. The plurality of radial reinforcing plates 16 are arranged sequentially and spaced apart along the circumference of the annular gap 15. Each radial reinforcing plate 16 is arranged radially along the core tube 11. The two sides of the radial reinforcing plates 16 are respectively connected to the outer side wall of the protective layer structure 13 and the inner side wall of the outer tube layer structure 14. The multiple radial reinforcing plates 16 can fix the protective layer structure and the outer tube layer structure 14 together. An arc-shaped connecting gap 17 is formed between the radial reinforcing plates 16.

[0021] like Figure 2 and 4 As shown, the two ends of the heating pipe 1 are a first connecting end 2 and a second connecting end 3, respectively. In use, the first connecting end 2 of one heating pipe 1 can be connected to the second connecting end 3 of another heating pipe 1 to connect the two sections of the heating pipe 1. At the first connecting end 2, the core tube 11 and the insulation layer 12 are relatively long, so the core tube 11 and the insulation layer 12 of the first connecting end 2 extend outward to form a first connecting body 21. The protective layer structure 13, the radial reinforcing plate 16, and the outer tube layer structure 14 are connected together to an annular end plate 22 at the end of the first connecting end 2. The first connecting body 21 and the annular end plate 22 form a connecting step. Multiple connecting protrusions 23 are provided on the annular end plate 22. The multiple connecting protrusions 23 are arranged sequentially and spaced apart along the circumference of the annular end plate 22. The size and number of the connecting protrusions 23 are consistent with the size and number of the arc-shaped connecting gap 17, so that the connecting protrusions 23 can be embedded in the arc-shaped connecting gap 17.

[0022] At the second connection end 3 of the heating pipe 1, the core tube 11 and the insulation layer 12 are relatively short. Thus, the core tube 11 and the insulation layer 12 at the second connection end 3 are recessed inward to form an annular connection groove 311. The size of the annular connection groove 311 is consistent with the size of the first connector 21. The first connector 21 can be embedded and connected to the annular connection groove 311.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, to achieve the connection and fixation of the heating pipe 1, a pipe body connection assembly is also provided on the heating pipe 1. The pipe body connection assembly includes a first connecting member 24 and a second connecting member 32. The first connecting member 24 and the second connecting member 32 are correspondingly arranged structures, thereby enabling the two sections of the heating pipe 1 to be fixedly connected. For ease of description, the two sections of the heating pipe 1 that need to be connected are referred to as the first heating pipe 18 and the second heating pipe 19, respectively. The first connecting member 24 is provided on the first connecting end 2, and the second connecting member 32 is provided on the second connecting end 3. Thus, during use, by correspondingly connecting the first connecting member 24 on the first heating pipe 18 and the second connecting member 32 on the second heating pipe 19, the connection and fixation between the first heating pipe 18 and the second heating pipe 19 can be achieved.

[0024] The first connecting member 24 includes a first annular mounting plate 241, which is fixedly mounted on the outer tube layer structure 14 of the first connecting end 2. An annular side plate 242 is provided on the first annular mounting plate 241. The annular side plate 242 and the first annular mounting plate 241 are arranged perpendicularly. The annular side plate 242 and the second annular mounting plate 321 are integral structures. An annular mounting gap 243 is formed between the annular side plate 242 and the outer tube layer structure 14. The first annular mounting plate 241 and the annular side plate 242 are provided with interconnected mounting screw holes 244. The mounting screw holes 244 penetrate the first annular mounting plate 241 and the annular side plate 242. There are multiple mounting screw holes 244, which are arranged sequentially at intervals along the circumference of the first annular mounting plate 241.

[0025] The second connecting member 32 includes a second annular mounting plate 321, the size of which is the same as that of the first annular mounting plate 241. The second annular mounting plate 321 is fixedly mounted on the outer tube layer structure 14 of the second connecting end 3. An annular connector 322 is provided on the second annular mounting plate 321, the size of which corresponds to the annular mounting gap 243. During the connection of the two heating pipes 1, the annular connector 322 can be embedded into the annular mounting gap 243. The second annular mounting plate 321 is provided with a plurality of connecting screw holes, which penetrate the second annular mounting plate 321. The plurality of connecting screw holes are arranged sequentially at intervals along the circumference of the second annular mounting plate 321, and the connecting screw holes and the mounting screw holes 244 can be located on the same axis in a one-to-one correspondence.

[0026] Thus, during use, when connecting and installing the two heating pipes 1, the first heating pipe 18 and the second heating pipe 19, such as... Figure 3 and Figure 4 As shown, the operation steps are as follows: S1, connect the first connecting end 2 of the first heating pipe 18 to the second connecting end 3 of the second heating pipe 19, and embed the first connecting body 21 of the first heating pipe 18 into the annular connecting groove 311 of the second heating pipe 19, and make the connecting protrusions 23 of the first heating pipe 18 embedded into the arc-shaped connecting gap 17 of the second heating pipe 19 one by one. During this process, the annular connecting body 322 of the second heating pipe 19 is embedded into the annular mounting gap 243 of the first heating pipe 18, and the connecting screw hole and the mounting screw hole 244 are located on the same axis one by one. S2, when the first heating pipe 18 and the second heating pipe 19 are connected, the core tube 11 of the first heating pipe 18 and the insulation layer 12 of the second heating pipe 19 are connected accordingly, the annular end plate 22 of the first heating pipe 18 is in contact with the protective layer structure 13, the radial reinforcing plate 16 and the outer pipe layer structure 14 of the second heating pipe 19, and the first annular mounting plate 241 and the second annular mounting plate 321 are in contact accordingly; S3, the connecting screw 4 passes through the mounting screw hole 244 and the connecting screw hole in sequence, and is fixed by the nut. The connecting screw 4 is installed in each mounting screw hole 244 and the connecting screw hole, so that the first connecting end 2 of the first heating pipe 18 and the second connecting end 3 of the second heating pipe 19 are fixedly connected together.

[0027] In this way, the connection between the two heating pipes 1 can be realized through the first connector 21 and the first connector 31. After the connection is completed, the connection of the heating pipes will not be exposed, thus improving the heat preservation effect. At the same time, the two heating pipes 1 are fixedly connected by the first connector 24 and the second connector 32. The first connector 24 and the second connector 32 can not only improve the convenience of installation and connection, but also form a protective structure at the connection of the heating pipes 1, protecting the connection of the heating pipes 1 and improving the heat preservation effect at the connection of the heating pipes 1.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat-resistant PE-RTII heating pipe, comprising a core tube (11), characterized in that, The outer side of the core tube (11) is provided with an insulation layer (12), a protective layer structure (13) and an outer tube layer structure (14) in sequence. An annular gap (15) is formed between the protective layer structure (13) and the outer tube layer structure (14). Multiple radial reinforcing plates (16) are provided in the annular gap (15). The two ends of the heating pipe (1) are a first connecting end (2) and a second connecting end (3), respectively. A first connecting body (21) and a first connecting member (24) are provided on the first connecting end (2). A first connecting part (31) and a second connecting member (32) are provided on the second connecting end (3). The first connecting body (21) and the first connecting part (31) are integrally provided with the heating pipe (1). The first connecting body (21) can be embedded in the first connecting part (31). The first connecting member (24) and the second connecting member (32) are respectively installed on the outer side of the heating pipe (1). The first connecting member (24) and the second connecting member (32) can be fixedly connected together.

2. The heat-resistant PE-RTII heating pipe according to claim 1, characterized in that, The protective layer structure (13) is fixed around the insulation layer (12), and the outer tube structure (14) is attached to the protective layer structure (13).

3. The heat-resistant PE-RTII heating pipe according to claim 1, characterized in that, Multiple radial reinforcing plates (16) are arranged sequentially at intervals along the circumference of the annular gap (15). The two sides of the radial reinforcing plates (16) are respectively connected to the protective layer structure (13) and the outer tube layer structure (14). An arc-shaped connecting gap (17) is formed between the radial reinforcing plates (16).

4. The heat-resistant PE-RTII heating pipe according to claim 3, characterized in that, The core tube (11) and the insulation layer (12) of the first connecting end (2) extend outward to form the first connecting body (21).

5. The heat-resistant PE-RTII heating pipe according to claim 4, characterized in that, The protective layer structure (13), the radial reinforcing plate (16) and the outer tube layer structure (14) are connected together to an annular end plate (22) at the end of the first connecting end (2). The annular end plate (22) is provided with a plurality of connecting protrusions (23). The plurality of connecting protrusions (23) are arranged sequentially at intervals along the circumference of the annular end plate (22). The connecting protrusions (23) can be embedded into the arc-shaped connecting gap (17).

6. The heat-resistant PE-RTII heating pipe according to claim 5, characterized in that, The first connecting part (31) is an annular connecting groove (311) formed by the inward recess of the core tube (11) and the insulation layer (12) of the second connecting end (3), and the first connecting body (21) can be embedded and connected to the annular connecting groove (311).

7. The heat-resistant PE-RTII heating pipe according to claim 1, characterized in that, The first connecting member (24) includes a first annular mounting plate (241), which is fixedly mounted on the outer tube layer structure (14) of the first connecting end (2). An annular side plate (242) is provided on the first annular mounting plate (241), and an annular mounting gap (243) is formed between the annular side plate (242) and the outer tube layer structure (14).

8. The heat-resistant PE-RTII heating pipe according to claim 7, characterized in that, The first annular mounting plate (241) and the annular side plate (242) are provided with interconnected mounting screw holes (244). There are multiple mounting screw holes (244), and the multiple mounting screw holes (244) are arranged sequentially at intervals along the circumference of the first annular mounting plate (241).

9. The heat-resistant PE-RTII heating pipe according to claim 8, characterized in that, The second connecting member (32) includes a second annular mounting plate (321), which is fixedly mounted on the outer tube layer structure (14) of the second connecting end (3). An annular connector (322) is provided on the second annular mounting plate (321), which can be embedded into the annular mounting gap (243).

10. The heat-resistant PE-RTII heating pipe according to claim 9, characterized in that, The second annular mounting plate (321) is provided with a plurality of connecting screw holes, which are arranged sequentially at intervals along the circumference of the second annular mounting plate (321). The connecting screw holes and the mounting screw holes (244) can be located on the same axis in a one-to-one correspondence.

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