High-temperature-resistant double-layer PE corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipes, and discloses a high-temperature-resistant double-layer PE corrugated pipe which comprises a corrugated pipe body, the corrugated pipe body is formed by combining a corrugated pipe inner pipe and a corrugated pipe outer pipe, spiral lines are arranged on the outer wall of the corrugated pipe inner pipe and the outer wall of the corrugated pipe outer pipe, and the corrugated pipe outer pipe is fixed to the surface of the corrugated pipe inner pipe in a bonded mode. A heat-resisting heat exchange assembly is arranged between the corrugated pipe inner pipe and the corrugated pipe outer pipe. According to the high-temperature-resistant double-layer PE corrugated pipe, fluid conveying is conducted through the corrugated pipe inner pipe, the abrasion resistance of the corrugated pipe body is enhanced through the corrugated pipe outer pipe, and when fluid with the high temperature is conveyed, cooling water circularly flows in the heat conduction interlayer through the circulating water inlet port and the circulating water outlet port; heat in the fluid can be conducted into the cooling water flowing in the heat conduction interlayer through the pipe wall of the corrugated pipe inner pipe, so that heat accumulation of the whole corrugated pipe body and the temperature of the fluid can be reduced, and the heat resistance of the corrugated pipe body is improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, and more specifically to a high-temperature resistant double-layer PE corrugated pipe. Background Technology

[0002] PE corrugated pipe, also known as polyethylene corrugated pipe, is a plastic protective sleeve made of polyethylene through extrusion. It is called corrugated pipe because its inner and outer surfaces are corrugated. It serves to protect cables from damage and has good wear resistance and corrosion resistance.

[0003] Double-layer PE corrugated pipe is a type of PE corrugated pipe, which is currently suitable for various applications. However, it has the drawback of simple structure. When using double-layer PE corrugated pipe to transport high-temperature fluids, due to the double-layer structure of the pipe body, it has the defect of poor heat dissipation. The temperature remains high for a long time, which can easily cause damage to the corrugated pipe and reduce its service life.

[0004] In view of this, this utility model proposes a high-temperature resistant double-layer PE corrugated pipe that facilitates heat exchange and dissipation. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-temperature resistant double-layer PE corrugated pipe to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a high-temperature resistant double-layer PE corrugated pipe, including a corrugated pipe body, the corrugated pipe body being composed of an inner corrugated pipe and an outer corrugated pipe, the outer walls of both the inner and outer corrugated pipes being provided with spiral patterns, and the outer corrugated pipe being bonded and fixed to the surface of the inner corrugated pipe, and a heat-resistant heat exchange component being provided between the inner and outer corrugated pipes;

[0007] The heat-resistant heat exchange component includes a heat-conducting interlayer formed between the outer corrugated tube and the inner corrugated tube. The heat-conducting interlayer is filled with cooling water. The two ends of the outer corrugated tube are respectively fitted with a circulating water inlet port and a circulating water outlet port, both of which are connected to an external circulating cooling water system.

[0008] As a further description of the above technical solution: the end of the inner tube of the corrugated pipe is integrally formed with a connecting flange, and the surface of the connecting flange is provided with a mounting hole; by providing a connecting flange and a mounting hole, a connecting bolt is inserted into the mounting hole to facilitate the connection and installation of multiple sections of the corrugated pipe body.

[0009] As a further description of the above technical solution: the surface of the connecting flange is integrally formed with an annular groove, and a high-temperature resistant sealing ring is fitted inside the annular groove; by setting the high-temperature resistant sealing ring, the sealing performance when connecting multiple corrugated pipe bodies can be improved.

[0010] As a further description of the above technical solution: heat-conducting wires are uniformly arranged on the spiral textured surface of the outer wall of the inner tube of the corrugated pipe; by setting heat-conducting wires, the heat exchange area between the inner tube of the corrugated pipe and the cooling water can be enhanced, thereby improving the heat exchange effect.

[0011] As a further description of the above technical solution: the end of the heat-conducting wire away from the inner tube of the corrugated pipe is covered with a protective rubber head; by setting the protective rubber head, the tip of the heat-conducting wire can be covered to prevent the heat-conducting wire from damaging the outer tube of the corrugated pipe.

[0012] As a further description of the above technical solution: a pressure relief pipe is embedded on the surface of the outer tube of the bellows, and a pressure relief hole is opened on the side wall of the pressure relief pipe. A sealing piston plate is slidably connected to the inner wall of the pressure relief pipe, and a support spring for supporting the sealing piston plate downward is fixedly installed on the inner top wall of the pressure relief pipe. The support spring supports the sealing piston plate, and the sealing piston plate seals the pressure relief hole. When the cooling water temperature is too high and vaporization occurs, the gas pressure can push the sealing piston plate to move, the support spring is compressed, and the gas is discharged through the pressure relief hole, avoiding the situation where the bellows body is deformed and damaged due to excessive gas pressure, and further improving the safety of the bellows body in use.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Compared with existing technologies, this high-temperature resistant double-layer PE corrugated pipe utilizes the inner corrugated pipe for fluid transport and the outer corrugated pipe to enhance the wear resistance of the corrugated pipe body. When transporting high-temperature fluids, cooling water circulates within the heat-conducting jacket through the circulating inlet and outlet ports. The heat inside the fluid can be conducted through the pipe wall of the inner corrugated pipe to the cooling water flowing inside the heat-conducting jacket, thereby reducing the overall heat accumulation of the corrugated pipe body and the temperature of the fluid, improving the heat resistance of the corrugated pipe body, and ensuring that the corrugated pipe body can be used for a long time.

[0015] 2. Compared with existing technologies, this high-temperature resistant double-layer PE corrugated pipe, through the setting of connecting flanges and mounting holes, allows for convenient connection and installation of multiple corrugated pipe sections by inserting connecting bolts inside the mounting holes; the setting of high-temperature resistant sealing rings improves the sealing performance when connecting multiple corrugated pipe sections; the setting of heat-conducting wires enhances the heat exchange area between the inner tube of the corrugated pipe and the cooling water, improving the heat exchange effect; the setting of protective rubber heads covers the tips of the heat-conducting wires, preventing them from damaging the outer tube of the corrugated pipe; and the setting of pressure relief pipes, pressure relief holes, sealing piston plates, and support springs, with the support springs supporting the sealing piston plates and the sealing piston plates sealing the pressure relief holes, allows the pressure to push the sealing piston plates to move when the cooling water vaporizes due to excessive temperature, compressing the support springs and releasing the gas through the pressure relief holes, preventing deformation and damage to the corrugated pipe body due to excessive pressure, further improving the safety of the corrugated pipe body in use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0017] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a different perspective;

[0018] Figure 3 This is a schematic diagram of the orthographic section of the present invention;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram is labeled as follows: 1. Inner bellows tube; 2. Outer bellows tube; 3. Spiral pattern; 4. Heat-conducting jacket; 5. Circulating water inlet port; 6. Circulating water outlet port; 7. Connecting flange; 8. Mounting hole; 9. High-temperature resistant sealing ring; 10. Heat-conducting wire; 11. Protective rubber head; 12. Pressure relief pipe; 13. Pressure relief hole; 14. Sealing piston plate; 15. Support spring. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The high-temperature resistant double-layer PE corrugated pipe involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1 to 4This utility model provides a high-temperature resistant double-layer PE corrugated pipe, including a corrugated pipe body, which is composed of an inner corrugated pipe 1 and an outer corrugated pipe 2. The outer walls of both the inner corrugated pipe 1 and the outer corrugated pipe 2 are provided with spiral patterns 3, and the outer corrugated pipe 2 is bonded and fixed to the surface of the inner corrugated pipe 1. A heat-resistant heat exchange component is provided between the inner corrugated pipe 1 and the outer corrugated pipe 2.

[0023] The heat-resistant heat exchange component includes a heat-conducting jacket 4 formed between the outer bellows tube 2 and the inner bellows tube 1. The heat-conducting jacket 4 is filled with cooling water. The two ends of the outer bellows tube 2 are respectively fitted with a circulating water inlet port 5 and a circulating water outlet port 6, which are connected to an external circulating cooling water system.

[0024] This high-temperature resistant double-layer PE corrugated pipe uses the inner corrugated pipe 1 for fluid transport and the outer corrugated pipe 2 to enhance the wear resistance of the corrugated pipe body. When the corrugated pipe body is used to transport high-temperature fluids, external cooling water circulates inside the heat-conducting jacket 4 through the circulating water inlet port 5 and the circulating water outlet port 6. The heat inside the fluid can be conducted through the pipe wall of the inner corrugated pipe 1 to the cooling water flowing inside the heat-conducting jacket 4, thereby reducing the heat accumulation of the corrugated pipe body and the temperature of the fluid, improving the heat resistance of the corrugated pipe body, and ensuring that the corrugated pipe body can be used for a long time.

[0025] The spiral pattern 3 on the outer wall of the inner tube 1 of the corrugated pipe is uniformly provided with heat-conducting wires 10.

[0026] By setting the heat-conducting wire 10, the heat exchange area between the inner tube 1 of the corrugated pipe and the cooling water can be increased, thereby improving the heat exchange effect.

[0027] The end of the heat-conducting wire 10 away from the inner tube 1 of the corrugated pipe is covered with a protective rubber head 11.

[0028] By setting a protective rubber head 11, the tip of the heat-conducting wire 10 can be covered to prevent the tip of the heat-conducting wire 10 from causing damage to the outer tube 2 of the corrugated pipe.

[0029] The surface of the corrugated outer tube 2 is fitted with a pressure relief tube 12. The side wall of the pressure relief tube 12 is provided with a pressure relief hole 13. The inner wall of the pressure relief tube 12 is slidably connected with a sealing piston plate 14, and a support spring 15 for supporting the sealing piston plate 14 downward is fixedly installed on the inner top wall of the pressure relief tube 12.

[0030] By setting up a pressure relief pipe 12, a pressure relief hole 13, a sealing piston plate 14, and a support spring 15, the support spring 15 supports the sealing piston plate 14, and the sealing piston plate 14 seals the pressure relief hole 13. When the cooling water temperature rises suddenly and the water partially vaporizes, causing the internal air pressure of the heat-conducting jacket 4 to increase, the air pressure can push the sealing piston plate 14 to move, the support spring 15 is compressed, and the gas is discharged through the pressure relief hole 13. This avoids the situation where the bellows body is deformed and damaged due to excessive air pressure, and further improves the safety of the bellows body in use.

[0031] It is worth noting that when circulating water, the water pressure needs to be limited to prevent excessive water pressure from pushing against the sealing piston plate 14 and causing leakage.

[0032] The end of the inner tube 1 of the corrugated pipe is integrally formed with a connecting flange 7, and the surface of the connecting flange 7 is provided with a mounting hole 8.

[0033] It is worth noting that this high-temperature resistant double-layer PE corrugated pipe, by setting a connecting flange 7 and a mounting hole 8, allows connecting bolts to be inserted inside the mounting hole 8, making it convenient to connect and install multiple sections of the corrugated pipe body.

[0034] The surface of the connecting flange 7 is integrally formed with an annular groove, and a high-temperature resistant sealing ring 9 is fitted inside the annular groove.

[0035] Furthermore, by setting a high-temperature resistant sealing ring 9, the sealing performance when connecting multiple corrugated pipe sections can be improved.

[0036] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A high-temperature resistant double-layer PE corrugated pipe, comprising a corrugated pipe body, characterized in that: The corrugated pipe body is composed of a corrugated inner pipe (1) and a corrugated outer pipe (2). The outer walls of both the corrugated inner pipe (1) and the corrugated outer pipe (2) are provided with spiral patterns (3), and the corrugated outer pipe (2) is bonded and fixed to the surface of the corrugated inner pipe (1). A heat-resistant heat exchange component is provided between the corrugated inner pipe (1) and the corrugated outer pipe (2). The heat-resistant heat exchange component includes a heat-conducting jacket (4) formed between the outer corrugated tube (2) and the inner corrugated tube (1). The heat-conducting jacket (4) is filled with cooling water. The two ends of the outer corrugated tube (2) are respectively fitted with a circulating water inlet port (5) and a circulating water outlet port (6). Both the circulating water inlet port (5) and the circulating water outlet port (6) are connected to the external circulating cooling water system.

2. The high-temperature resistant double-layer PE corrugated pipe according to claim 1, characterized in that: The end of the inner tube (1) of the corrugated pipe is integrally formed with a connecting flange (7), and the surface of the connecting flange (7) is provided with a mounting hole (8).

3. The high-temperature resistant double-layer PE corrugated pipe according to claim 2, characterized in that: The surface of the connecting flange (7) is integrally formed with an annular groove, and a high-temperature resistant sealing ring (9) is fitted inside the annular groove.

4. The high-temperature resistant double-layer PE corrugated pipe according to claim 1, characterized in that: The spiral pattern (3) on the outer wall of the inner tube (1) of the corrugated pipe is uniformly provided with heat-conducting wires (10).

5. The high-temperature resistant double-layer PE corrugated pipe according to claim 4, characterized in that: The end of the heat-conducting wire (10) away from the inner tube (1) of the corrugated pipe is covered with a protective rubber head (11).

6. The high-temperature resistant double-layer PE corrugated pipe according to claim 1, characterized in that: The surface of the corrugated outer tube (2) is fitted with a pressure relief tube (12), the side wall of the pressure relief tube (12) is provided with a pressure relief hole (13), the inner wall of the pressure relief tube (12) is slidably connected with a sealing piston plate (14), and the inner top wall of the pressure relief tube (12) is fixedly installed with a support spring (15) for supporting the sealing piston plate (14) downward.

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