Extruder cooling system for ultra-high molecular weight polyethylene pipe

Abstract

The utility model discloses an extruder cooling system for an ultra-high molecular weight polyethylene pipe, which comprises a positioning shell, a lug plate is arranged on the outer side of the positioning shell, a positioning groove is formed in the end part of the positioning shell, a positioning pad is fixed on the inner side of the positioning groove, and a liquid guide pipe is fixed in the middle of the inner side of the positioning shell. The bottom end of the liquid guide pipe is connected with the top of a bottom liquid box, the bottom liquid box is installed at the bottom of the outer wall of the positioning shell, bottom cooling fins are fixed to the bottom face of the bottom liquid box, a bottom cooling fan is arranged below the bottom cooling fins, and the side of the bottom cooling fan is fixedly connected with the side of the bottom liquid box. According to the extruder cooling system for the ultra-high molecular weight polyethylene pipe, a novel structural design is adopted, an air cooling mechanism and a liquid cooling mechanism are reasonably combined, heat on an extrusion end machine barrel is efficiently transferred through the liquid cooling mechanism, heat dissipation of the liquid cooling mechanism and flowing of air near the machine barrel are promoted through the air cooling mechanism, and the cooling efficiency of the liquid cooling mechanism is improved; and the overall cooling effect is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to a cooling system for an extruder used in ultra-high molecular weight polyethylene pipes. Background Technology

[0002] An extruder is an industrial equipment used to extrude or process materials. It is widely used in plastics, food, rubber, chemicals, building materials and other fields. Its core principle is to use mechanical pressure and heating to make the material in a molten or semi-molten state pass through a specific mold to form continuous profiles, pipes, sheets and other products.

[0003] Existing extruder cooling systems are installed on the extrusion barrel. For example, in Chinese utility model patent CN213704492U, entitled "Combined Cooling System for Extruder Barrel in Polymer Foaming Extrusion Processing," although both air-cooling and liquid-cooling mechanisms are included, the structural design is unreasonable, and the coordination between the air-cooling and liquid-cooling mechanisms is insufficient. The cooling function still relies mainly on the air-cooling mechanism, resulting in insufficient cooling efficiency. Therefore, a cooling system for ultra-high molecular weight polyethylene (UHMWPE) pipe extruders needs to be designed to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a cooling system for an extruder for ultra-high molecular weight polyethylene pipes, in order to solve the problems mentioned in the background art, such as unreasonable structural design of existing devices, insufficient coordination between air cooling and liquid cooling mechanisms, and insufficient cooling efficiency, as the main cooling function still relies on the air cooling mechanism.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling system for an extruder used in ultra-high molecular weight polyethylene pipes, comprising a positioning shell, an ear plate on the outer side of the positioning shell, a positioning groove at the end of the positioning shell, a positioning pad fixed inside the positioning groove, a liquid guide pipe fixed in the middle of the inner side of the positioning shell, the bottom end of the liquid guide pipe connected to the top of the bottom liquid tank, the bottom liquid tank installed at the bottom of the outer wall of the positioning shell, bottom heat dissipation fins fixed on the bottom surface of the bottom liquid tank, a bottom heat dissipation fan below the bottom heat dissipation fins, the side of the bottom heat dissipation fan connected and fixed to the side of the bottom liquid tank, a transfer pipe installed on the side of the bottom liquid tank, a circulation pump installed on the transfer pipe, the top end of the transfer pipe connected to the side of the top liquid tank, the top liquid tank installed on the top of the outer wall of the positioning shell, top heat dissipation fins installed on the top surface of the top liquid tank, the bottom of the top liquid tank connected to the bottom of the liquid guide pipe, a delivery fan installed on one side of the positioning shell, an exhaust fan installed on the other side of the delivery fan, side fins fixed on the side of the transfer pipe, and air guide holes opened on the side fins.

[0006] Preferably, the liquid guide tubes are symmetrically distributed about the center of the positioning shell, and the middle part of the liquid guide tubes is set as a semi-circle.

[0007] Preferably, the bottom liquid tank and the top liquid tank are symmetrically distributed about the center of the positioning shell. The bottom liquid tank is provided with bottom heat dissipation fins at equal intervals on the bottom surface, and the top liquid tank is provided with top heat dissipation fins 12 at equal intervals on the top surface.

[0008] Preferably, the transfer tubes are symmetrically distributed about the center of the positioning shell, the diameter of the transfer tubes is larger than the diameter of the liquid guiding tubes, and the transfer tubes are evenly distributed on the side of the positioning shell.

[0009] Preferably, the centers of the supply fan and the exhaust fan are on the same vertical plane as the center of the transfer tube, and the supply fan and the exhaust fan are equally spaced on both sides of the positioning shell.

[0010] Preferably, the side fins are symmetrically distributed about the center of the transfer tube, and air guide holes are provided on the side fins at equal intervals.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the cooling system of the ultra-high molecular weight polyethylene pipe extruder adopts a novel structural design, which rationally combines air cooling and liquid cooling mechanisms. The liquid cooling mechanism efficiently transfers heat from the extrusion end barrel, and the air cooling mechanism promotes heat dissipation of the liquid cooling mechanism and promotes air flow near the barrel, thereby improving the cooling efficiency of the liquid cooling mechanism and significantly enhancing the overall cooling effect.

[0012] 1. The circulating liquid cooling mechanism, consisting of a liquid guide pipe, a bottom liquid tank, a transfer pipe, and a top liquid tank, quickly transfers the heat from the extrusion end barrel. The bottom liquid tank, transfer pipe, and top liquid tank are all externally mounted. In conjunction with the bottom heat dissipation fins, the bottom heat dissipation fan, and the top heat dissipation fins, the heat in the coolant is quickly transferred outward.

[0013] 2. By accelerating the airflow inside the positioning housing through the supply fan and exhaust fan, and promoting the airflow near the transfer tube, the coolant in the transfer tube is cooled down in conjunction with the side fins installed on both sides of the transfer tube, thereby further improving the heat dissipation efficiency of the liquid cooling system and thus improving the overall cooling efficiency. Attached Figure Description

[0014] Figure 1 This is a frontal cross-sectional view of the present invention.

[0015] Figure 2 This is a front view schematic diagram of the positioning groove and positioning pad of this utility model;

[0016] Figure 3 This is a side view of the transfer tube and side fins of this utility model.

[0017] Figure 4 This is a top view of the structure of this utility model.

[0018] In the diagram: 1. Positioning shell; 2. Ear plate; 3. Positioning groove; 4. Positioning pad; 5. Liquid guide tube; 6. Bottom liquid tank; 7. Bottom heat dissipation fins; 8. Bottom heat dissipation fan; 9. Transfer tube; 10. Circulation pump; 11. Top liquid tank; 12. Top heat dissipation fins; 13. Supply fan; 14. Exhaust fan; 15. Side fins; 16. Air guide hole. 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 1-4 This utility model provides a technical solution: a cooling system for an extruder used in ultra-high molecular weight polyethylene pipes, comprising a positioning shell 1, ear plates 2, positioning grooves 3, positioning pads 4, liquid guide pipes 5, bottom liquid tanks 6, bottom heat dissipation fins 7, bottom heat dissipation fans 8, transfer pipes 9, a circulating pump 10, top liquid tanks 11, top heat dissipation fins 12, a blower fan 13, an exhaust fan 14, side fins 15, and air guide holes 16. Ear plates 2 are provided on the outer side of the positioning shell 1, and positioning grooves 3 are provided at the end of the positioning shell 1. Positioning pads 4 are fixed inside the positioning grooves 3. A liquid guide pipe 5 is fixed in the middle of the inner side of the positioning shell 1, and the bottom end of the liquid guide pipe 5 is connected to the top of the bottom liquid tank 6. The bottom liquid tank 6 is installed on the outer wall of the positioning shell 1. At the bottom, a bottom heat dissipation fin 7 is fixed to the bottom surface of the bottom liquid tank 6. A bottom heat dissipation fan 8 is installed below the bottom heat dissipation fin 7. The side of the bottom heat dissipation fan 8 is connected and fixed to the side of the bottom liquid tank 6. A transfer pipe 9 is installed on the side of the bottom liquid tank 6. A circulation pump 10 is installed on the transfer pipe 9. The top of the transfer pipe 9 is connected to the side of the top liquid tank 11. The top liquid tank 11 is installed on the top of the outer wall of the positioning shell 1. A top heat dissipation fin 12 is installed on the top surface of the top liquid tank 11. The bottom of the top liquid tank 11 is connected to the bottom of the liquid guide pipe 5. A delivery fan 13 is installed on one side of the positioning shell 1. An exhaust fan 14 is installed on the other side of the delivery fan 13. A side fin 15 is fixed to the side of the transfer pipe 9. A vent hole 16 is opened on the side fin 15.

[0021] In this example, the liquid guide tubes 5 are symmetrically distributed about the center of the positioning shell 1. The middle part of the liquid guide tubes 5 is set as a semi-circle. The above structural design allows the middle part of the liquid guide tubes 5 to fit tightly against the outer wall of the extrusion end barrel, so as to efficiently conduct heat.

[0022] The bottom coolant tank 6 and the top coolant tank 11 are symmetrically distributed about the center of the positioning shell 1. The bottom coolant tank 6 has bottom heat dissipation fins 7 at equal intervals on its bottom surface, and the top coolant tank 11 has top heat dissipation fins 12 at equal intervals on its top surface. The above structural design enables the coolant to dissipate heat efficiently.

[0023] The transfer pipes 9 are symmetrically distributed about the center of the positioning shell 1. The diameter of the transfer pipes 9 is larger than the diameter of the liquid guiding pipe 5. The transfer pipes 9 are evenly distributed on the side of the positioning shell 1. The above structural design enables the transfer pipes 9 to efficiently transfer the coolant and ensure overall circulation.

[0024] The centers of the supply fan 13 and the exhaust fan 14 are both on the same vertical plane as the center of the transfer pipe 9. The supply fan 13 and the exhaust fan 14 are equally spaced on both sides of the positioning shell 1. The above structural design can smoothly deliver external cold air into the positioning shell 1 and quickly exhaust the hot air inside the positioning shell 1.

[0025] The side fins 15 are symmetrically distributed about the center of the transfer tube 9, and air guide holes 16 are provided at equal intervals on the side fins 15. The above structural design can dissipate heat from the coolant when it flows through the transfer tube 9, and ensure the air flow rate, thereby improving the overall heat dissipation efficiency of the liquid cooling system.

[0026] Working principle: When in use, the positioning shell 1 is closed and installed on the extrusion end barrel of the extruder through the ear plate 2. The inner side of the liquid guide tube 5 is tightly fitted with the outer wall of the extrusion end barrel. The liquid guide tube 5, the bottom liquid tank 6, the transfer tube 9 and the top liquid tank 11 are filled with coolant.

[0027] During cooling, the circulation pump 10 is started, and the coolant in the top liquid tank 11 enters the liquid guide pipe 5 to absorb and carry away the heat on the extrusion end barrel. Then the coolant flows into the bottom liquid tank 6, and some of the heat is dissipated to the outside through the bottom heat dissipation fins 7 and the bottom heat dissipation fan 8. Next, the coolant enters the transfer pipe 9, and continues to dissipate heat to the outside through the transfer pipe 9 and the side fins 15. Finally, the coolant flows back into the top liquid tank 11, and the top heat dissipation fins 12 also conduct heat to the outside for efficient heat dissipation, ensuring that the temperature of the circulating coolant is always kept at a low level.

[0028] While the liquid cooling system is operating, the supply fan 13 and the exhaust fan 14 operate simultaneously. The supply fan 13 will... Figure 1 Cold air from the left outer side of the positioning shell 1 is sent into the positioning shell 1. When the cold air flows through the left transfer pipe 9 and the side fins 15 installed on it, it also promotes the heat dissipation of the coolant in the side transfer pipe 9. With the help of the exhaust fan 14, the air in the positioning shell 1 flows rapidly to the right and is discharged through the exhaust fan 14. The rapid rightward flow of the air in the positioning shell 1 directly dissipates heat from the extrusion end barrel. Furthermore, the air discharged by the exhaust fan 14 also accelerates the heat dissipation of the right transfer pipe 9 when it passes rapidly through the right transfer pipe 9, thereby improving the overall heat dissipation and cooling effect. This is the working principle of the cooling system of the ultra-high molecular weight polyethylene pipe extruder.

[0029] 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 cooling system for an extruder used in ultra-high molecular weight polyethylene pipes, comprising a positioning shell (1), characterized in that: An ear plate (2) is provided on the outer side of the positioning shell (1). A positioning groove (3) is provided at the end of the positioning shell (1). A positioning pad (4) is fixed inside the positioning groove (3). A liquid guide pipe (5) is fixed in the middle of the inner side of the positioning shell (1). The bottom end of the liquid guide pipe (5) is connected to the top of the bottom liquid tank (6). The bottom liquid tank (6) is installed at the bottom of the outer wall of the positioning shell (1). Bottom heat dissipation fins (7) are fixed on the bottom surface of the bottom liquid tank (6). A bottom heat dissipation fan (8) is provided below the bottom heat dissipation fins (7). The side of the bottom heat dissipation fan (8) is connected and fixed to the side of the bottom liquid tank (6). The side of the bottom liquid tank (6) is installed with... The device is equipped with a transfer tube (9), on which a circulation pump (10) is installed. The top end of the transfer tube (9) is connected to the side of the top liquid tank (11). The top liquid tank (11) is installed on the top of the outer wall of the positioning shell (1). The top surface of the top liquid tank (11) is equipped with a top heat dissipation fin (12). The bottom of the top liquid tank (11) is connected to the bottom of the liquid guide tube (5). A fan (13) is installed on one side of the positioning shell (1), and an exhaust fan (14) is installed on the other side of the fan (13). Side fins (15) are fixed on the side of the transfer tube (9), and air guide holes (16) are opened on the side fins (15).

2. The cooling system for an extruder used in ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The liquid guide tubes (5) are symmetrically distributed about the center of the positioning shell (1), and the middle part of the liquid guide tubes (5) is set as a semi-circle.

3. The cooling system for an extruder used in ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The bottom liquid tank (6) and the top liquid tank (11) are symmetrically distributed about the center of the positioning shell (1). The bottom liquid tank (6) is provided with bottom heat dissipation fins (7) at equal intervals on the bottom surface, and the top liquid tank (11) is provided with top heat dissipation fins (12) at equal intervals on the top surface.

4. The cooling system for an extruder used in ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The transfer tubes (9) are symmetrically distributed about the center of the positioning shell (1). The diameter of the transfer tubes (9) is larger than the diameter of the liquid guide tube (5). The transfer tubes (9) are evenly distributed on the side of the positioning shell (1).

5. The cooling system for an extruder used in ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The centers of the supply fan (13) and the exhaust fan (14) are on the same vertical plane as the center of the transfer tube (9), and the supply fan (13) and the exhaust fan (14) are equally spaced on both sides of the positioning shell (1).

6. The cooling system for an extruder used in ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The side fins (15) are symmetrically distributed about the center of the transfer tube (9), and air guide holes (16) are provided at equal intervals on the side fins (15).

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