Heat-resistant composite PE pipeline

Abstract

The utility model relates to a composite PE (polyethylene) pipeline, and provides a heat-resistant composite PE pipeline, which comprises a pipe body, the outer wall of the pipe body is coated with a first heat-insulating sheet and a second heat-insulating sheet, the two ends of the first heat-insulating sheet and the two ends of the second heat-insulating sheet are connected, the first heat-insulating sheet and the second heat-insulating sheet are connected with a mounting frame arranged on the periphery, grooves are formed in the two ends of the first heat-insulating sheet, and the two ends of the second heat-insulating sheet are connected with the mounting frame. And a buffer device is arranged at the bottom of the groove. In order to solve the problem that in the prior art, heat preservation devices on the outer side of a pipe body do not have buffering performance, a buffering structure is designed, and damage to the heat preservation devices due to vibration or long-time operation is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a composite PE pipe, in particular to a heat-resistant composite PE pipe. Background Art

[0002] PE pipes have excellent physical and chemical properties and are widely used in modern pipeline engineering. The application of PE pipes ensures high efficiency and low cost of fluid transportation. In many industrial or civil scenarios, the pipes may be exposed to high-temperature environments, such as direct sunlight outdoors. PE pipes with strong heat resistance can effectively prevent material softening, deformation or strength reduction caused by temperature rise, thus ensuring the safe operation and long-term efficiency of the pipeline system.

[0003] Currently, a heat-resistant pipe has been proposed, which is directly connected in contact between two protective sleeves, and a fixing device is used to fix the protective sleeves on the outer side of the pipe body at the connection. However, the contact part between the two protective sleeves does not have buffering. When the pipe body expands and contracts thermally or vibrates, it will cause damage to the protective sleeves. In addition, if the problem of no buffering at the connection is avoided by loosening the tightness of the fixing device, there will be gaps between the protective sleeves, resulting in poor heat preservation effect. Summary of the Utility Model

[0004] The utility model aims to overcome the defect of the above-mentioned prior art without buffering, and provides a heat-resistant composite PE pipe

[0005] To solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A heat-resistant composite PE pipe, comprising a pipe body, an outer wall of the pipe body is coated with a first heat-insulating sheet and a second heat-insulating sheet connected at both ends, the first heat-insulating sheet and the second heat-insulating sheet are connected to an installation frame arranged on the outer periphery, grooves are provided at both ends of the first heat-insulating sheet, and a buffer device is provided at the bottom of the grooves.

[0007] As a preferred solution, one end of the buffer device is connected to the bottom of the groove, and an insulating board is connected to the other end of the buffer device, and the insulating board is in contact with the end of the second heat-insulating sheet.

[0008] As a preferred solution, the buffer device includes a spring.

[0009] As a preferred solution, a sound insulation pad is provided between the first heat-insulating sheet and the second heat-insulating sheet and the pipe body.

[0010] As a preferred solution, the pipe body further includes a support frame, and the support frame is connected to the installation frame through a connecting rod.

[0011] As a preferred solution, vacuum cavities are provided inside both the first heat-insulating sheet and the second heat-insulating sheet.

[0012] As a preferred solution, wear-resistant layers are provided on the outer walls of the first heat-insulating sheet and the second heat-insulating sheet.

[0013] As a preferred solution, fastening devices are provided on both sides of the installation frame, and the fastening devices are respectively connected to the first heat-insulating sheet and the second heat-insulating sheet.

[0014] As a preferred solution, the fastening device includes a bolt, the bolt is threadedly connected to a threaded hole opened on the installation frame, and the bottom end of the bolt is attached to the first heat-insulating sheet and the second heat-insulating sheet through an arc-shaped piece.

[0015] As a preferred solution, the fastening device is further provided with reinforcing nails, and the end of the reinforcing nail passes through an opening on the fastening device and pierces into the installation frame.

[0016] Compared with the prior art, the beneficial effect of the technical solution of the present utility model is that: by arranging a buffer device inside the grooves at both ends of the first heat-insulating sheet, the connection between the first heat-insulating sheet and the second heat-insulating sheet has buffering, effectively absorbing and reducing the dynamic stress caused by the vibration during the operation of the pipeline or external impact, and reducing the wear and damage to the heat-insulating sheet caused by vibration or long-term operation. Description of the Drawings

[0017] Figure 1 It is a structural diagram of a heat-resistant composite PE pipeline in Embodiment 1.

[0018] Figure 2 It is a structural diagram of the first heat-insulating sheet in Embodiment 1.

[0019] Figure 3 It is a structural diagram of the installation frame in Embodiment 3.

[0020] Figure 4 It is an enlarged view of the connection between the first heat-insulating sheet and the second heat-insulating sheet in Embodiment 4.

[0021] Figure 5 It is a structural diagram of the fastening device in Embodiment 5.

[0022] Among them, 1 - pipe body, 2 - installation frame, 3 - fastening device, 301 - bolt, 302 - arc-shaped piece, 303 - reinforcing nail, 5 - first heat-insulating sheet, 6 - second heat-insulating sheet, 7 - groove, 8 - buffer device, 9 - heat-insulating board, 10 - sound-insulating pad, 11 - connecting rod, 12 - support frame, 15 - vacuum chamber, 16 - wear-resistant layer. Detailed Embodiment

[0023] The drawings are only for illustrative purposes and cannot be construed as a limitation of this patent;

[0024] To better illustrate this embodiment, some components in the drawings are omitted, enlarged, or reduced, which do not represent the dimensions of the actual product;

[0025] For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0026] The technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0027] Embodiment 1

[0028] A heat-resistant composite PE pipe proposed in this embodiment, as Figure 1 shown, is a structural diagram of a heat-resistant composite PE pipe of this embodiment; as Figure 2 shown, is a structural diagram of the first heat-insulating sheet of this embodiment.

[0029] In the heat-resistant composite PE pipe proposed in this embodiment, it includes a pipe body 1. The outer wall of the pipe body 1 is covered with a first heat-insulating sheet 5 and a second heat-insulating sheet 6 connected at both ends. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are connected to an installation frame 2 arranged on the outer periphery. Grooves 7 are provided at both ends of the first heat-insulating sheet 5, and a buffer device 8 is provided at the bottom of the grooves 7.

[0030] In this embodiment, by providing grooves at both ends of the first heat-insulating sheet 5, and a buffer device 8 is arranged inside the grooves. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are connected through the buffer device 8, so that there is buffering between the first heat-insulating sheet 5 and the second heat-insulating sheet 6. The buffer device 8 improves the stability and durability of the pipe when it bears temperature changes or external impacts. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are fixed on the outer periphery of the pipe body 1 through the installation frame 2, which provides support and fixation for the installation of the heat-insulating sheet, ensures the overall structural stability of the heat-insulating sheet, and facilitates the replacement or repair of the heat-insulating sheet when needed.

[0031] In an optional embodiment, one end of the buffer device 8 is connected to the bottom of the groove, and an insulating plate 9 is connected to the other end of the buffer device 8. The insulating plate 9 is connected to the end of the second heat-insulating sheet 6.

[0032] In this embodiment, by providing an insulating plate 9 at one end of the buffer device 8, the second heat-insulating sheet 6 is connected to the insulating plate; so that the second heat-insulating sheet 6 will not be stuck into the groove of the first heat-insulating sheet 5, effectively avoiding wear or deformation caused by contact between structures. At the same time, if it is stuck for a long time, the structure will undergo slight deformation under the influence of load and environmental pressure, making the joint part tighter, resulting in mechanical interlocking and difficult separation. By providing the insulating plate 9, this situation can be avoided. In addition, the insulating plate 9 also ensures the overall heat-insulating performance of the pipe body.

[0033] Further optionally, the buffer device 8 includes a spring.

[0034] Specifically, the buffer device 8 includes a spring, which can effectively absorb and disperse the effects caused by thermal expansion and contraction or physical impact, thereby protecting the pipe structure and the thermal insulation structure from damage.

[0035] Embodiment 2

[0036] This embodiment is an improvement based on the heat-resistant composite PE pipe proposed in Embodiment 1.

[0037] In the heat-resistant composite PE pipe proposed in this embodiment, it includes a pipe body 1. The outer wall of the pipe body 1 is coated with a first heat-insulating sheet 5 and a second heat-insulating sheet 6 connected at both ends. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are connected to the installation frame 2 provided on the outer periphery. Both ends of the first heat-insulating sheet 5 are provided with grooves 7, and a buffer device 8 is provided at the bottom of the grooves 7.

[0038] In an alternative embodiment, a sound insulation pad 10 is provided between the first heat-insulating sheet and the second heat-insulating sheet and the pipe body.

[0039] In this embodiment, introducing the sound insulation pad 10 can absorb and disperse sound waves, thereby significantly reducing the sound generated by the flow of gas or liquid inside the pipe. It also helps to comply with the environmental noise standards in industrial and residential areas. In noise-sensitive environments such as hospitals, schools or residential areas, reducing noise pollution is particularly important. In addition, the sound insulation pad also has a shock-absorbing function, which helps to prevent physical damage to the pipe itself caused by vibration or external impact. This protection measure can effectively extend the service life of the pipe, reduce maintenance costs, and ensure that the system maintains optimal performance within its design life.

[0040] Embodiment 3

[0041] This embodiment is an improvement based on the heat-resistant composite PE pipe proposed in Embodiment 1 or Embodiment 2; as Figure 3 shown, it is the structural diagram of the installation frame of this embodiment.

[0042] In the heat-resistant composite PE pipe proposed in this embodiment, it includes a pipe body 1. The outer wall of the pipe body 1 is coated with a first heat-insulating sheet 5 and a second heat-insulating sheet 6 connected at both ends. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are connected to the installation frame 2 provided on the outer periphery. Both ends of the first heat-insulating sheet 5 are provided with grooves 7, and a buffer device 8 is provided at the bottom of the grooves 7.

[0043] In an alternative embodiment, the pipe body 1 further includes a support frame 12, and the support frame 12 is connected to the installation frame 2 through a connecting rod 11.

[0044] In this embodiment, the introduction of support frame 12 significantly enhances the structural stability and load-bearing capacity of the entire pipeline system. By securing pipe body 1 to mounting frame 2, the support frame not only increases the mechanical strength of the pipeline itself but also effectively disperses stress caused by medium flow or external environmental factors, thereby preventing structural deformation and potential damage, and enhancing the durability and reliability of the pipeline. Furthermore, because the support frame provides additional support, the pipeline system can be installed in areas with complex terrain or less than ideal foundation conditions, expanding the application range of the pipeline system and making pipeline installation site selection more flexible.

[0045] Example 4

[0046] This embodiment makes improvements based on the heat-resistant composite PE pipe proposed in any one of Examples 1 to 3; Figure 4 , which is an enlarged view of the junction between the first thermal insulation sheet and the second thermal insulation sheet of this embodiment.

[0047] The heat-resistant composite PE pipe proposed in this embodiment includes a pipe body 1, the outer wall of which is covered with a first insulation sheet 5 and a second insulation sheet 6 connected at both ends. The first insulation sheet 5 and the second insulation sheet 6 are connected to the installation frame 2 set at the periphery. Grooves 7 are provided at both ends of the first insulation sheet 5, and a buffer device 8 is provided at the bottom of the groove 7.

[0048] In an optional embodiment, a vacuum cavity 15 is provided inside each of the first thermal insulation sheet 5 and the second thermal insulation sheet 6 .

[0049] Further optionally, outer walls of the first thermal insulation sheet 5 and the second thermal insulation sheet 6 are provided with a wear-resistant layer 16 .

[0050] In this embodiment, the two sound insulation cavities 15 are vacuum-treated. By opening a vacuum cavity inside the upper insulation sheet 5 and the lower insulation sheet 6 and evacuating the cavity, since there are no gas molecules in a vacuum, heat can only be transferred through thermal radiation. The propagation speed of thermal radiation in a vacuum is very slow, and the spectral range that can be absorbed is also very limited. Therefore, the transmission of thermal radiation in a vacuum is greatly reduced, thereby achieving a heat insulation effect. In addition, by adding a wear-resistant layer to the surface of the first insulation sheet 5 and the second insulation sheet 6, wear caused by friction or physical impact during daily use is prevented, and the durability and life of the insulation sheet are also improved.

[0051] Example 5

[0052] This embodiment makes improvements based on the heat-resistant composite PE pipe proposed in any one of Examples 1 to 4; Figure 5 FIG. 1 is a structural diagram of the fastening device of this embodiment.

[0053] In the heat-resistant composite PE pipe proposed in this embodiment, it includes a pipe body 1. An outer wall of the pipe body 1 is covered with a first heat-insulating sheet 5 and a second heat-insulating sheet 6 connected at both ends. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are connected to an installation frame 2 arranged on the outer periphery. Grooves 7 are provided at both ends of the first heat-insulating sheet 5, and a buffer device 8 is provided at the bottom of the grooves 7.

[0054] In an alternative embodiment, fastening devices 3 are provided on both sides of the installation frame 2, and the fastening devices 3 are respectively connected to the first heat-insulating sheet 5 and the second heat-insulating sheet 6.

[0055] Furthermore, the fastening device 3 includes a bolt 301, which is in threaded connection with a threaded hole formed in the installation frame 2. A bottom end of the bolt is attached to the first heat-insulating sheet 5 and the second heat-insulating sheet 6 through an arc-shaped piece 302.

[0056] Further optionally, the fastening device 3 is further provided with a reinforcing nail 303. An end of the reinforcing nail 303 passes through an opening in the fastening device 3 and pierces into the installation frame 2.

[0057] In this embodiment, fastening devices 3 are also provided on both sides of the installation frame. The first heat-insulating sheet 5 and the second heat-insulating sheet 6 are fixed on the outer wall of the pipe body 1 through the fastening devices 3. During maintenance or replacement, only the fastening devices need to be disassembled, and the heat-insulating sheets can be separated from the pipe body 1, which is convenient for maintenance and replacement. Specifically, the fastening device includes a bolt 301. During use, the bolt 301 is first in threaded connection with a preset threaded hole in the installation frame, and its bottom end is attached to the heat-insulating sheet through an arc-shaped piece 302 to ensure the stability of the connection and the integrity of the heat-insulating sheet. Tighten the bolt to make the arc-shaped piece 302 close to the heat-insulating sheet, and the heat-insulating sheet can be fixed on the outer wall of the pipe body. Loosen the bolt to separate the heat-insulating sheet from the pipe body. In addition, the fastening device 3 is further provided with a reinforcing nail 303. The reinforcing nail 303 can pierce into the installation frame 2 through an opening in the bolt, providing additional reinforcement between the bolt and the installation frame.

[0058] The same or similar reference numerals correspond to the same or similar components;

[0059] The terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation to this patent;

[0060] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention and are not limitations to the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A heat-resistant composite PE pipe, comprising a pipe body (1), characterized in that, The outer wall of the pipe body (1) is covered with a first heat-insulating sheet (5) and a second heat-insulating sheet (6) connected at both ends. The first heat-insulating sheet (5) and the second heat-insulating sheet (6) are connected through a mounting frame (2) provided on their outer peripheries. Grooves (7) are provided at both ends of the first heat-insulating sheet (5), and a buffer device (8) is provided at the bottom of the grooves (7).

2. The heat-resistant composite PE pipe according to claim 1, wherein One end of the buffer device (8) is connected to the bottom of the groove, and the other end of the buffer device (8) is connected with a heat-insulating plate (9), and the heat-insulating plate (9) is in contact with the end of the second heat-insulating sheet (6).

3. The heat-resistant composite PE pipe according to claim 2, wherein, The buffer device (8) includes a spring.

4. The heat-resistant composite PE pipe according to claim 1, characterized in that, A sound-insulating pad (10) is provided between the first heat-insulating sheet (5) and the second heat-insulating sheet (6) and the pipe body (1).

5. The heat-resistant composite PE pipe according to claim 1, characterized in that, The pipe body (1) further includes a support frame (12), and the support frame (12) is connected to the mounting frame (2) through a connecting rod (11).

6. The heat-resistant composite PE pipe according to claim 1, characterized in that Vacuum cavities (15) are provided inside both the first heat-insulating sheet (5) and the second heat-insulating sheet (6).

7. The heat-resistant composite PE pipe according to claim 1, wherein Wear-resistant layers (16) are provided on the outer walls of the first heat-insulating sheet (5) and the second heat-insulating sheet (6).

8. The heat-resistant composite PE pipe according to any one of claims 1 to 7, characterized in that, Fastening devices (3) are provided on both sides of the mounting frame (2), and the fastening devices (3) are respectively connected to the first heat-insulating sheet (5) and the second heat-insulating sheet (6).

9. The heat-resistant composite PE pipe according to claim 8, wherein, The fastening device (3) includes a bolt (301), and the bolt (301) is threadedly connected to a threaded hole provided on the mounting frame (2). The bottom end of the bolt is attached to the first heat-insulating sheet (5) and the second heat-insulating sheet (6) through an arc-shaped piece (302).

10. The heat-resistant composite PE pipe according to claim 9, wherein, The fastening device (3) is further provided with a reinforcing nail (303), and the end of the reinforcing nail (303) passes through an opening on the fastening device (3) and pierces into the mounting frame (2).

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