Low-temperature-resistant polyethylene pipe

Abstract

The utility model discloses a low-temperature-resistant polyethylene pipe, which belongs to the technical field of polyethylene pipes and comprises a polyethylene pipe body, a thermal insulation pipe is arranged on the outer side of the polyethylene pipe body, clamping blocks are fixed on two sides of one end in the thermal insulation pipe, and clamping grooves corresponding to the clamping blocks are arranged at one end of the outer side of the polyethylene pipe body. The heat preservation pipe is arranged on the polyethylene pipe body in a sleeved mode, the clamping block at one end of the interior of the heat preservation pipe enters the clamping groove in the polyethylene pipe body, the heat preservation pipe is sleeved with the heat preservation pipe, the heat preservation pipe is clamped in the clamping groove, and the heat preservation pipe is fixed to the polyethylene pipe body through the clamping groove. And then the fixing bolts can be screwed into the fixing holes, the effect of fixing the heat preservation pipe to the polyethylene pipe body is achieved, the heat preservation pipe and the first heat preservation layer and the second heat preservation layer in the cavity of the heat preservation pipe can have the heat preservation effect on the polyethylene pipe body, and the polyethylene pipe body is prevented from being prone to frost cracking in the low-temperature environment.

Description

Technical Field

[0001] This utility model belongs to the field of polyethylene pipe technology, specifically relating to a low-temperature resistant polyethylene pipe. Background Technology

[0002] Polyethylene pipes are pipes made of polyethylene, a highly crystalline, non-polar thermoplastic resin.

[0003] The existing technology has the following technical problems: the existing polyethylene pipe has poor low-temperature resistance and is prone to freezing and cracking when used in low-temperature environments. At the same time, the existing polyethylene pipe has low wear resistance and corrosion resistance, resulting in poor practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a low-temperature resistant polyethylene pipe, which features good insulation performance and high low-temperature resistance of polyethylene pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature resistant polyethylene pipe, comprising a polyethylene pipe body, an insulation pipe provided on the outside of the polyethylene pipe body, two clamping blocks fixed on both sides of one end of the insulation pipe, a clamping groove corresponding to the clamping block being opened on one end of the outer side of the polyethylene pipe body, the clamping block being connected to the polyethylene pipe body by a fixing bolt, a fixing hole corresponding to the fixing bolt being opened in the clamping groove, a cavity being opened in the insulation pipe, an intermediate layer being provided in the middle of the cavity, a sound insulation layer one being provided on one side of the intermediate layer, and a sound insulation layer two being provided on the other side of the sound insulation layer one.

[0006] Preferably, a second insulation layer is provided on the side of the intermediate layer away from the first sound insulation layer, and a first insulation layer is provided on the other side of the second insulation layer.

[0007] Preferably, the inner wall of the polyethylene pipe body is provided with a corrosion-resistant layer, and a wear-resistant layer is provided on the other side of the corrosion-resistant layer.

[0008] Preferably, a heat insulation layer is provided between the corrosion-resistant layer and the polyethylene pipe body, and a moisture-proof layer is provided between the heat insulation layer and the polyethylene pipe body.

[0009] Preferably, the first insulation layer and the second insulation layer are made of polyurethane foam and glass wool, respectively, and the first sound insulation layer and the second sound insulation layer are made of polyester fiber cotton and rock wool, respectively.

[0010] Preferably, the wear-resistant layer is made of epoxy resin and the corrosion-resistant layer is made of silicone.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses an insulation pipe to fit onto the polyethylene pipe body. At the same time, the locking block at one end of the insulation pipe enters the locking groove on the polyethylene pipe body. Then, the fixing bolt can be screwed into the fixing hole to fix the insulation pipe onto the polyethylene pipe body. The insulation pipe and the insulation layer one and insulation layer two in its cavity can provide insulation for the polyethylene pipe body, preventing the polyethylene pipe body from freezing and cracking easily in low temperature environments.

[0013] 2. This utility model improves the wear resistance of the inner wall of the polyethylene pipe by setting a wear-resistant layer on the inner wall of the polyethylene pipe body. At the same time, a corrosion-resistant layer is set to prevent the corrosive liquid being transported from corroding the polyethylene pipe body. A heat insulation layer is set to insulate the polyethylene pipe body from the heat of the liquid being transported, preventing heat loss. A moisture-proof layer is set to block water vapor penetration, preventing the medium inside the pipe from getting damp or external moisture from entering and affecting the pipe performance. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a perspective view of the insulation pipe of this utility model during installation;

[0016] Figure 3 This is a three-dimensional cross-sectional view of the insulation pipe of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the polyethylene pipe body of this utility model;

[0018] In the diagram: 1. Polyethylene pipe body; 2. Insulated pipe; 3. Fixing bolt; 4. Clip; 5. Slot; 6. Fixing hole; 7. Cavity; 8. Insulation layer one; 9. Insulation layer two; 10. Intermediate layer; 11. Sound insulation layer one; 12. Sound insulation layer two; 13. Heat insulation layer; 14. Moisture-proof layer; 15. Corrosion-resistant layer; 16. Wear-resistant layer. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4The present invention provides the following technical solution: a low-temperature resistant polyethylene pipe, comprising a polyethylene pipe body 1, an insulation pipe 2 disposed on the outside of the polyethylene pipe body 1, a clamping block 4 fixed on both sides of one end of the insulation pipe 2, a clamping groove 5 corresponding to the clamping block 4 opened on one end of the outer side of the polyethylene pipe body 1, the clamping block 4 and the polyethylene pipe body 1 being connected by a fixing bolt 3, a fixing hole 6 corresponding to the fixing bolt 3 being opened in the clamping groove 5, a cavity 7 being opened in the insulation pipe 2, an intermediate layer 10 disposed in the middle of the cavity 7, a sound insulation layer 11 disposed on one side of the intermediate layer 10, and a sound insulation layer 12 disposed on the other side of the sound insulation layer 11.

[0021] Specifically, the middle layer 10 has a second insulation layer 9 on the side away from the first sound insulation layer 11, and the other side of the second insulation layer 9 has a first insulation layer 8.

[0022] By adopting the above technical solution, sound insulation layer 11 and sound insulation layer 12 are set in the cavity 7 to play a sound insulation role, so as to avoid the sound of water flow inside the polyethylene pipe body 1 from being transmitted to the outside and causing noise pollution.

[0023] Specifically, a corrosion-resistant layer 15 is provided on the inner wall of the polyethylene pipe body 1, and a wear-resistant layer 16 is provided on the other side of the corrosion-resistant layer 15.

[0024] By adopting the above technical solution, the wear resistance of the inner wall of the polyethylene pipe body 1 is improved by setting a wear-resistant layer 16 on the inner wall of the polyethylene pipe body 1, and at the same time, a corrosion-resistant layer 15 is set to prevent the corrosive liquid being transported from corroding the polyethylene pipe body 1.

[0025] Specifically, a heat insulation layer 13 is provided between the corrosion-resistant layer 15 and the polyethylene pipe body 1, and a moisture-proof layer 14 is provided between the heat insulation layer 13 and the polyethylene pipe body 1.

[0026] By adopting the above technical solution, the heat insulation layer 13 can insulate the polyethylene pipe body 1 from the liquid being transported at a temperature, preventing heat loss. The moisture-proof layer 14 can block water vapor penetration, preventing the medium inside the pipe from getting damp or external moisture from invading and affecting the pipe performance.

[0027] Specifically, insulation layer 8 and insulation layer 9 are made of polyurethane foam and glass wool, respectively, and sound insulation layer 11 and sound insulation layer 12 are made of polyester fiber cotton and rock wool, respectively.

[0028] By adopting the above technical solutions, polyurethane foam and glass wool have better thermal insulation effects, while polyester fiber cotton and rock wool have better sound insulation effects.

[0029] Specifically, the wear-resistant layer 16 is made of epoxy resin, and the corrosion-resistant layer 15 is made of silicone.

[0030] By adopting the above technical solutions, the wear-resistant layer 16, made of epoxy resin, has better wear resistance, and the corrosion-resistant layer 15, made of silicone, has better corrosion resistance.

[0031] The working principle and usage process of this utility model: When using the low-temperature resistant polyethylene pipe, install the device in a suitable position. By setting up the insulation pipe 2, fit the insulation pipe 2 onto the polyethylene pipe body 1. Simultaneously, the locking block 4 at one end of the insulation pipe 2 enters the locking groove 5 on the polyethylene pipe body 1. Then, screw the fixing bolt 3 into the fixing hole 6 to achieve the effect of fixing the insulation pipe 2 to the polyethylene pipe body 1. The insulation pipe 2 and the insulation layer 8 and insulation layer 9 in its cavity 7 can provide insulation for the polyethylene pipe body 1, preventing the polyethylene pipe body 1 from easily freezing and cracking in low-temperature environments. The cavity 7 is equipped with a sound insulation layer 11 and a sound insulation layer 12 to provide sound insulation and prevent the sound of water flow inside the polyethylene pipe body 1 from being transmitted to the outside and causing noise pollution. The wear-resistant layer 16 is provided on the inner wall of the polyethylene pipe body 1 to improve the wear resistance of the inner wall of the polyethylene pipe body 1. At the same time, the corrosion-resistant layer 15 is provided to prevent the corrosive liquid being transported from corroding the polyethylene pipe body 1. The heat insulation layer 13 is provided to insulate the heated liquid being transported in the polyethylene pipe body 1 and prevent heat loss. The moisture-proof layer 14 is provided to block water vapor penetration and prevent the medium inside the pipe from getting damp or external moisture from entering and affecting the performance of the pipe.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low temperature resistant polyethylene pipe comprising a polyethylene pipe body (1), characterized in that: The polyethylene pipe body (1) is provided with a heat preservation pipe (2) outside, the heat preservation pipe (2) is fixed with a clamping block (4) on both sides of one end inside, the polyethylene pipe body (1) is provided with a clamping groove (5) corresponding to the clamping block (4) on one end outside, the clamping block (4) and the polyethylene pipe body (1) are connected through a fixing bolt (3), the clamping groove (5) is provided with a fixing hole (6) corresponding to the fixing bolt (3), the heat preservation pipe (2) is provided with a cavity (7), the middle layer (10) is arranged at the middle position of the cavity (7), the sound insulation layer one (11) is arranged on one side of the middle layer (10), and the sound insulation layer two (12) is arranged on the other side of the sound insulation layer one (11).

2. A polyethylene pipe according to claim 1, characterised in that: The middle layer (10) is provided with a heat preservation layer two (9) on the side away from the sound insulation layer one (11), and the heat preservation layer two (9) is provided with a heat preservation layer one (8) on the other side.

3. A polyethylene pipe according to claim 1, characterized in that: The polyethylene pipe body (1) is provided with a corrosion-resistant layer (15) on the inner wall, and the corrosion-resistant layer (15) is provided with a wear-resistant layer (16) on the other side.

4. A polyethylene pipe according to claim 3, characterised in that: The corrosion-resistant layer (15) and the polyethylene pipe body (1) are provided with a heat insulation layer (13) and a moisture-proof layer (14) between them.

5. A polyethylene pipe according to claim 2, characterised in that: The heat preservation layer one (8) and the heat preservation layer two (9) are respectively made of polyurethane foam and glass wool, and the sound insulation layer one (11) and the sound insulation layer two (12) are respectively made of polyester fiber cotton and rock wool.

6. A polyethylene pipe according to claim 3, wherein: The wear-resistant layer (16) is made of epoxy resin material, and the corrosion-resistant layer (15) is made of organic silicon material.

Images