A high temperature and high pressure heat transfer oil circulation heat exchange device for plastic film extruder

Abstract

The utility model relates to the technical field of plastic film production, in particular to a high-temperature and high-pressure heat-conducting oil circulation heat-exchanging device for a plastic film extruder, which can filter out impurities in the heat-conducting oil during the circulation of the heat-conducting oil, thereby ensuring the heat transfer efficiency of the heat-conducting oil and the use of the heat-conducting oil, and is easy to use, reliable and practical; the utility model comprises a base plate, a heater, a high-pressure oil pump and an oil pipeline, the heater and the high-pressure oil pump are both fixedly mounted on the base plate, the output end of the heater is connected to the high-pressure oil pump, and the output end of the high-pressure oil pump is provided with an oil pipeline; the utility model also comprises a heat exchange mechanism and a filtering mechanism, the output end of the oil pipeline is connected to the input end of the heat exchange mechanism, the heat exchange mechanism has a heat exchange function, the output end of the heat exchange mechanism is connected to the input end of the oil pipeline through the filtering mechanism, and the filtering mechanism has a filtering function.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, in particular to a high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder. Background Art

[0002] Thermal oil is a medium with excellent heat conduction performance, which can transfer heat quickly and evenly in the extruder. When producing plastic film through an extruder, it is necessary to heat the raw materials to a molten state in the barrel of the extruder through thermal oil; in the prior art, the utility model patent with patent application number 201710431466.0 discloses a thermal oil internal and external heating plastic extruder, which mainly includes a motor, a high-temperature oil pump, a heating container and a barrel, etc. When it is used, the thermal oil is heated in the heating container and then transported to the oil inlet pipeline through the high-temperature oil pump, and then the thermal oil is transported to the barrel through the oil inlet pipeline, so that the thermal oil heats the barrel, and then the thermal oil flows back to the heating container through the oil outlet pipeline for heating; the inventor believes that there are the following problems in the use process, because the thermal oil will inevitably introduce some solid impurities and dirt into the interior during the long-term circulation of the thermal oil, these impurities and dirt will not only affect the heat transfer performance and stability of the thermal oil, but also easily cause blockage to the pipeline, so a circulating heat exchange device that can discharge solid impurities in the thermal oil is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-temperature and high-pressure heat-conducting oil circulating heat exchange device for a plastic film extruder, which can filter out impurities in the heat-conducting oil during the circulation of the heat-conducting oil, thereby ensuring the heat transfer efficiency of the heat-conducting oil and the use of the heat-conducting oil, and is easy to use and has high reliability and practicality.

[0004] The utility model discloses a high-temperature and high-pressure heat-conducting oil circulation heat-exchanging device for a plastic film extruder, comprising a base plate, a heater, a high-pressure oil pump and an oil pipeline, wherein the heater and the high-pressure oil pump are fixedly mounted on the base plate, the output end of the heater is connected to the high-pressure oil pump, and the output end of the high-pressure oil pump is provided with an oil pipeline; the utility model also comprises a heat-exchanging mechanism and a filtering mechanism, the output end of the oil pipeline is connected to the input end of the heat-exchanging mechanism, the heat-exchanging mechanism has a heat-exchanging function, the output end of the heat-exchanging mechanism is connected to the input end of the oil pipeline through the filtering mechanism, and the filtering mechanism has a filtering function; the heat-exchanging mechanism is mounted on the barrel of the plastic film extruder, and when the barrel of the plastic film extruder is heated, When it is hot, turn on the high-pressure oil pump, so that the high-temperature heat-conducting oil in the heater enters the heat exchange mechanism through the heater, the high-pressure oil pump and the oil pipe in sequence, and then the heat-conducting oil exchanges heat with the cylinder of the plastic film extruder through the heat exchange mechanism, so that the raw materials in the cylinder of the plastic film extruder are melted by heat, and then the heat-conducting oil enters the filtering mechanism through the heat exchange mechanism to filter out impurities, and then the filtered heat-conducting oil enters the heater again to be heated and recycled; in the process of recycling the heat-conducting oil, impurities in the heat-conducting oil can be filtered out, thereby ensuring the heat transfer efficiency of the heat-conducting oil and the use of the heat-conducting oil, and the use is convenient and practical.

[0005] Preferably, the heat exchange mechanism includes a heat exchange pipe, the output end of the oil pipe is connected to the input end of the heat exchange pipe, and the output end of the heat exchange pipe is connected to the input end of the filtering mechanism; the heat exchange pipe is fixedly embedded in the side wall of the barrel of the plastic film extruder, and after the heat transfer oil enters the heat exchange pipe through the oil pipe, the heat transfer oil exchanges heat with the extruder barrel through the side wall of the heat exchange pipe, and then the heat transfer oil enters the filtering mechanism through the heat exchange pipe for filtration; the heat exchange between the heat transfer oil and the extruder barrel is facilitated.

[0006] Preferably, the filtering mechanism comprises two groups of filtering devices, a delivery pipe, a transverse pipe A, a transverse pipe B, an oil inlet pipe and a bracket; the output end of the heat exchange pipe is connected to the transverse pipe A through the delivery pipe, the input ends of the two groups of filtering devices are both connected to the transverse pipe A, the two groups of filtering devices are both fixedly mounted on the bracket, the output ends of the two groups of filtering devices are both connected to the transverse pipe B, the output end of the transverse pipe B is connected to the heater through the oil inlet pipe, and the filtering device has a filtering function; when filtering the thermal oil, the thermal oil is transported to one of the groups of filtering devices through the heat exchange pipe, the delivery pipe and the transverse pipe A for filtration, and then the filtered thermal oil enters the heater through the transverse pipe B and the oil inlet pipe for reheating; by providing two groups of filtering devices, when filtering the thermal oil through one group of filtering devices, the solid impurities in the other group of filtering devices can be cleaned, and the two groups of filtering devices are used alternately to ensure the continuity of filtration.

[0007] Preferably, the filtering device comprises a cylinder, a filter cartridge, a pipe A and a pipe B, the cylinder is fixedly mounted on a bracket, a chamber is arranged in the cylinder, the filter cartridge is fixedly mounted in the chamber of the cylinder, a cavity is arranged in the filter cartridge, a plurality of filter holes connected with the cavity are arranged on the filter cartridge, the input end of the pipe A is connected with the transverse pipe A, the output end of the pipe A is connected with the cavity of the filter cartridge, a valve is arranged on the pipe A, the input end of the pipe B is connected with the chamber of the cylinder, the output end of the pipe B is connected with the transverse pipe B, and a valve is arranged on the pipe B; When filtering the heat transfer oil, open the valve on one group of pipes A, and open the valve on the corresponding pipe B, and close the valves on the other group of pipes A and pipe B. Then the heat transfer oil enters one group of pipes A through the cross pipe A, and then the heat transfer oil enters one group of filter cartridges through pipe A. Then the heat transfer oil enters the chamber of the cylinder after being filtered through the filter holes on the filter cartridge. Then the heat transfer oil enters the cross pipe B, the oil inlet pipe and the heater in sequence through pipe B, which facilitates the filtering of the heat transfer oil.

[0008] Preferably, it also includes a high-pressure water pump, two groups of water pipes and two groups of sewage pipes, the input end of the high-pressure water pump is provided with a water inlet pipe, the output end of the high-pressure water pump is provided with two groups of water pipes, valves are provided on the two groups of water pipes, the two groups of water pipes are respectively connected to the chambers of the two groups of cylinders, the input ends of the two groups of sewage pipes are respectively connected to the lower parts of the cavities of the two groups of filter cartridges, valves are provided on the two groups of sewage pipes, and the output ends of the two groups of sewage pipes are respectively located on the outsides of the two groups of cylinders; when it is necessary to clean the impurities in one group of filter cartridges, close the pipe A and the pipe connected thereto. Open the valve on B, then the valve on the sewage pipe connected to it, then open the valve on the corresponding water pipe, then connect the input end of the high-pressure water pump to the external water source, then turn on the high-pressure water pump, so that water enters the chamber of the cylinder through the high-pressure water pump and the water pipe in turn, and then the water enters the cavity of the filter cartridge through the chamber of the cylinder. When the water enters the cavity of the filter cartridge, it washes away the impurities on the filter holes on the filter cartridge, and then the impurities and water are discharged to the outside through the sewage pipe connected to it; it is convenient to clean the impurities on the filter cartridge.

[0009] Preferably, the two groups of cylinders are both provided with drainage pipes, which are respectively connected to the lower parts of the two groups of cylindrical chambers, and valves are both provided on the two groups of drainage pipes; by opening the valves on the drainage pipes, the liquid in the cylindrical chamber can be discharged, which facilitates the discharge of the liquid in the cylindrical chamber and improves convenience.

[0010] Preferably, a thermometer is provided on the cylinder; through the above arrangement, the temperature of the heat transfer oil in the cylinder chamber is easily monitored, thereby improving convenience.

[0011] Compared with the prior art, the utility model has the following beneficial effects: impurities in the heat transfer oil can be filtered out during the circulation of the heat transfer oil, thereby ensuring the heat transfer efficiency of the heat transfer oil and the use of the heat transfer oil, and the utility model is easy to use and has high reliability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural diagram of the filtering mechanism;

[0014] Figure 3 It is a second axonometric structural schematic diagram of the utility model;

[0015] Figure 4 It is a main structural schematic diagram of the utility model;

[0016] Figure 5 yes Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0017] Markings in the attached figure: 1. Base plate; 2. Heater; 3. High-pressure oil pump; 4. Oil pipeline; 5. Heat exchange tube; 6. Delivery pipe; 7. Horizontal pipe A; 8. Horizontal pipe B; 9. Oil inlet pipe; 10. Bracket; 11. Cylinder; 12. Filter cartridge; 13. Pipe A; 14. Pipe B; 15. High-pressure water pump; 16. Water pipeline; 17. Sewage pipe; 18. Drain pipe. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0019] like Figures 1 to 5The utility model discloses a high-temperature and high-pressure heat-conducting oil circulation heat exchange device for an extruder, comprising a base plate 1, a heater 2, a high-pressure oil pump 3, an oil pipeline 4, a heat exchange mechanism and a filtering mechanism. The heater 2 and the high-pressure oil pump 3 are both fixedly mounted on the base plate 1. The output end of the heater 2 is connected to the high-pressure oil pump 3. The output end of the high-pressure oil pump 3 is provided with an oil pipeline 4. The output end of the oil pipeline 4 is connected to the input end of the heat exchange mechanism. The heat exchange mechanism has a heat exchange function. The output end of the heat exchange mechanism is connected to the input end of the oil pipeline 4 through the filtering mechanism. The filtering mechanism has a filtering function. The heat exchange mechanism is mounted on the barrel of the plastic film extruder. When the barrel of the plastic film extruder is subjected to the filtering, the filter mechanism is provided with a filter mechanism. During heating, the high-pressure oil pump 3 is turned on, so that the high-temperature heat-conducting oil in the heater 2 enters the heat exchange mechanism via the heater 2, the high-pressure oil pump 3 and the oil pipe 4 in sequence, and then the heat-conducting oil exchanges heat with the barrel of the plastic film extruder via the heat exchange mechanism, so that the raw materials in the barrel of the plastic film extruder are melted by heat, and then the heat-conducting oil enters the filtering mechanism via the heat exchange mechanism to filter out impurities, and then the filtered heat-conducting oil enters the heater 2 again for heating and recycling; in the process of recycling the heat-conducting oil, impurities in the heat-conducting oil can be filtered out, thereby ensuring the heat transfer efficiency of the heat-conducting oil and the use of the heat-conducting oil, and the use is convenient and practical.

[0020] like Figure 1 The heat exchange mechanism includes a heat exchange pipe 5, the output end of the oil pipeline 4 is connected to the input end of the heat exchange pipe 5, and the output end of the heat exchange pipe 5 is connected to the input end of the filtering mechanism; the heat exchange pipe 5 is fixedly embedded in the side wall of the barrel of the plastic film extruder, and after the heat transfer oil enters the heat exchange pipe 5 through the oil pipeline 4, the heat transfer oil exchanges heat with the extruder barrel through the side wall of the heat exchange pipe 5, and then the heat transfer oil enters the filtering mechanism through the heat exchange pipe 5 for filtration; the heat exchange between the heat transfer oil and the extruder barrel is facilitated.

[0021] like Figure 2 and Figure 1 The filtering mechanism includes two groups of filtering devices, a delivery pipe 6, a transverse pipe A7, a transverse pipe B8, an oil inlet pipe 9 and a bracket 10. The output end of the heat exchange tube 5 is connected to the transverse pipe A7 through the delivery pipe 6. The input ends of the two groups of filtering devices are both connected to the transverse pipe A7. The two groups of filtering devices are fixedly installed on the bracket 10. The output ends of the two groups of filtering devices are both connected to the transverse pipe B8. The output end of the transverse pipe B8 is connected to the heater 2 through the oil inlet pipe 9. The filtering device has a filtering function; when filtering the heat transfer oil, the heat transfer oil is transported to one of the groups of filtering devices through the heat exchange tube 5, the delivery pipe 6 and the transverse pipe A7 for filtration, and then the filtered heat transfer oil enters the heater 2 through the transverse pipe B8 and the oil inlet pipe 9 for reheating; by providing two groups of filtering devices, when filtering the heat transfer oil through one group of filtering devices, the solid impurities in the other group of filtering devices can be cleaned, and the two groups of filtering devices are used alternately to ensure the continuity of filtration.

[0022] like Figure 2 The filtering device includes a cylinder 11, a filter cartridge 12, a pipe A13 and a pipe B14. The cylinder 11 is fixedly mounted on the bracket 10. A chamber is arranged in the cylinder 11. The filter cartridge 12 is fixedly mounted in the chamber of the cylinder 11. A cavity is arranged in the filter cartridge 12. The filter cartridge 12 is provided with a plurality of filter holes connected with the cavity. The input end of the pipe A13 is connected with the transverse pipe A7. The output end of the pipe A13 is connected with the cavity of the filter cartridge 12. A valve is arranged on the pipe A13. The input end of the pipe B14 is connected with the chamber of the cylinder 11. The output end of the pipe B14 is connected with the transverse pipe B8. The pipe B14 is provided with a valve. There is a valve; when filtering the heat transfer oil, the valve on one group of pipes A13 is opened, and the valve on the corresponding pipe B14 is opened, and the valves on the other group of pipes A13 and pipe B14 are closed, and then the heat transfer oil enters one group of pipes A13 through the transverse pipe A7, and then the heat transfer oil enters one group of filter cartridges 12 through the pipe A13, and then the heat transfer oil enters the chamber of the cylinder 11 after being filtered through the filter holes on the filter cartridge 12, and then the heat transfer oil enters the transverse pipe B8, the oil inlet pipe 9 and the heater 2 in sequence through the pipe B14, which facilitates the filtering of the heat transfer oil.

[0023] like Figure 2 and Figure 5 The two groups of cylinders 11 are both provided with drain pipes 18, which are respectively connected to the lower part of the chambers of the two groups of cylinders 11, and are both provided with valves; the valves on the drain pipes 18 can be opened to discharge the liquid in the chambers of the cylinders 11, which facilitates the discharge of the liquid in the chambers of the cylinders 11 and improves convenience. The cylinder 11 is provided with a thermometer. Example

[0024] like Figure 2On the basis of Example 1, a backwashing device is added, a high-pressure water pump 15, two groups of water pipes 16 and two groups of sewage pipes 17 are added, the input end of the high-pressure water pump 15 is provided with a water inlet pipe, the output end of the high-pressure water pump 15 is provided with two groups of water pipes 16, both groups of water pipes 16 are provided with valves, the two groups of water pipes 16 are respectively connected to the chambers of the two groups of cylinders 11, the input ends of the two groups of sewage pipes 17 are respectively connected to the lower parts of the cavities of the two groups of filter cartridges 12, the two groups of sewage pipes 17 are provided with valves, and the output ends of the two groups of sewage pipes 17 are respectively located on the outside of the two groups of cylinders 11; when it is necessary to clean the impurities in one group of filter cartridges 12, close the valve connected to it. The valves on the pipe A13 and the pipe B14 are opened, and then the valve on the sewage pipe 17 connected thereto is opened, and then the valve on the corresponding water pipe 16 is opened, and then the input end of the high-pressure water pump 15 is connected to the external water source, and then the high-pressure water pump 15 is opened, so that water enters the chamber of the cylinder 11 through the high-pressure water pump 15 and the water pipe 16 in sequence, and then the water enters the cavity of the filter cartridge 12 through the chamber of the cylinder 11. When the water enters the cavity of the filter cartridge 12, it washes down the impurities on the filter holes of the filter cartridge 12, and then the impurities and water are discharged to the outside through the sewage pipe 17 connected thereto; it is convenient to clean the impurities on the filter cartridge 12.

[0025] The heater 2, high-pressure oil pump 3, high-pressure water pump 15, sewage pipe 17 and liquid discharge pipe 18 of the high-temperature and high-pressure heat-conducting oil circulation heat exchange device for the plastic film extruder of the utility model are all purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder, comprising a base plate (1), a heater (2), a high-pressure oil pump (3) and an oil delivery pipe (4), wherein the heater (2) and the high-pressure oil pump (3) are both fixedly mounted on the base plate (1), the output end of the heater (2) is connected to the high-pressure oil pump (3), and the output end of the high-pressure oil pump (3) is provided with an oil delivery pipe (4); characterized in that: It also comprises a heat exchange mechanism and a filtering mechanism, wherein the output end of the oil pipeline (4) is connected to the input end of the heat exchange mechanism, the heat exchange mechanism has a heat exchange function, the output end of the heat exchange mechanism is connected to the input end of the oil pipeline (4) via the filtering mechanism, and the filtering mechanism has a filtering function.

2. A high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder as claimed in claim 1, characterized in that: The heat exchange mechanism comprises a heat exchange pipe (5), the output end of the oil delivery pipe (4) is connected to the input end of the heat exchange pipe (5), and the output end of the heat exchange pipe (5) is connected to the input end of the filtering mechanism.

3. A high temperature and high pressure heat transfer oil circulation heat exchange device for a plastic film extruder as claimed in claim 2, characterized in that: The filtering mechanism comprises two groups of filtering devices, a delivery pipe (6), a transverse pipe A (7), a transverse pipe B (8), an oil inlet pipe (9) and a bracket (10); the output end of the heat exchange pipe (5) is connected to the transverse pipe A (7) via the delivery pipe (6); the input ends of the two groups of filtering devices are both connected to the transverse pipe A (7); the two groups of filtering devices are fixedly mounted on the bracket (10); the output ends of the two groups of filtering devices are both connected to the transverse pipe B (8); the output end of the transverse pipe B (8) is connected to the heater (2) via the oil inlet pipe (9); and the filtering devices have a filtering function.

4. A high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder as claimed in claim 3, characterized in that: The filtering device comprises a cylinder (11), a filter cartridge (12), a pipe A (13) and a pipe B (14); the cylinder (11) is fixedly mounted on a bracket (10); a chamber is provided in the cylinder (11); the filter cartridge (12) is fixedly mounted in the chamber of the cylinder (11); a cavity is provided in the filter cartridge (12); a plurality of filter holes connected to the cavity are provided on the filter cartridge (12); an input end of the pipe A (13) is connected to a transverse pipe A (7); an output end of the pipe A (13) is connected to the cavity of the filter cartridge (12); a valve is provided on the pipe A (13); an input end of the pipe B (14) is connected to the chamber of the cylinder (11); an output end of the pipe B (14) is connected to a transverse pipe B (8); and a valve is provided on the pipe B (14).

5. A high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder as claimed in claim 4, characterized in that: It also comprises a high-pressure water pump (15), two groups of water pipes (16) and two groups of sewage pipes (17). The input end of the high-pressure water pump (15) is provided with a water inlet pipe. The output end of the high-pressure water pump (15) is provided with two groups of water pipes (16). Both groups of water pipes (16) are provided with valves. The two groups of water pipes (16) are respectively connected to the chambers of the two groups of cylinders (11). The input ends of the two groups of sewage pipes (17) are respectively connected to the lower parts of the cavities of the two groups of filter cartridges (12). Both groups of sewage pipes (17) are provided with valves. The output ends of the two groups of sewage pipes (17) are respectively located outside the two groups of cylinders (11).

6. A high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder as claimed in claim 4, characterized in that: The two groups of cylinders (11) are both provided with drainage pipes (18), the two groups of drainage pipes (18) are respectively connected to the lower parts of the chambers of the two groups of cylinders (11), and the two groups of drainage pipes (18) are both provided with valves.

7. A high-temperature and high-pressure heat-conducting oil circulation heat exchange device for a plastic film extruder as claimed in claim 4, characterized in that: The cylinder (11) is provided with a thermometer.

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