Cooling equipment for producing lubricating oil

Abstract

The utility model discloses cooling equipment for producing lubricating oil, and belongs to the technical field of lubricating oil production, the cooling equipment comprises a cooling box, a main cooling mechanism and an auxiliary cooling mechanism are arranged in the cooling box, the main cooling mechanism comprises a main cooling pipe, and the main cooling pipe is fixedly installed in the cooling box; a first two-way connector is fixedly installed at the oil inlet end of the main cooling pipe, an oil inlet pipe is fixedly installed at the other connector of the first two-way connector, and a first three-way connector is fixedly installed at the oil outlet end of the first two-way connector. The other connector of the first three-way connector is connected with an auxiliary cooling pipe and a first oil outlet pipe, and a second two-way connector is fixedly installed at the oil outlet end of the auxiliary cooling pipe. The main cooling mechanism and the auxiliary cooling mechanism are used for cooling lubricating oil cooperatively, flexible selection according to the cooling requirement of the lubricating oil is facilitated, and meanwhile through cooperative use of the two sets of air cooling mechanisms, the reasonability of resource utilization is improved.

Description

Technical Field

[0001] This application relates to the field of lubricating oil production technology, and in particular to a cooling device for producing lubricating oil. Background Technology

[0002] As an indispensable lubricating medium in mechanical equipment, lubricating oil requires multiple steps in its production process, including base oil blending, additive mixing, filtration, and cooling. Among these, the cooling process is a crucial step in ensuring the stable performance of the lubricating oil.

[0003] Traditional cooling methods typically involve transporting finished oil to storage tanks and cooling it down through natural or auxiliary cooling equipment. However, natural cooling methods suffer from low cooling efficiency, large space requirements, and extended production cycles. While water-cooled and air-cooled coolers offer higher cooling efficiency, they often suffer from poor flexibility and high resource consumption.

[0004] Therefore, this application provides a cooling device for producing lubricating oil. Utility Model Content

[0005] In view of the shortcomings of the prior art, this application provides a cooling device for producing lubricating oil, which overcomes the shortcomings of the prior art and aims to solve the problem that the traditional cooling method usually involves transporting the finished oil to the oil storage tank and cooling it down by natural cooling or auxiliary cooling equipment. However, the natural cooling method has problems such as low cooling efficiency, large space occupation, and extended production cycle. Although water-cooled coolers and air-cooled coolers have high cooling efficiency, they usually have problems of poor flexibility and high resource consumption.

[0006] To achieve the above objectives, this application provides the following technical solution: A cooling device for producing lubricating oil, comprising a cooling tank, wherein a main cooling mechanism and an auxiliary cooling mechanism are provided inside the cooling tank, the main cooling mechanism comprising a main cooling pipe fixedly installed inside the cooling tank, a first double-ended connector fixedly installed at the oil inlet end of the main cooling pipe, an oil inlet pipe fixedly installed at the other port of the first double-ended connector, a first tee connector fixedly installed at the oil outlet end of the first double-ended connector, the first double-ended connector being connected to an auxiliary cooling pipe and a first oil outlet pipe respectively through the first tee connector, the second double-ended connector being fixedly installed at the oil outlet end of the auxiliary cooling pipe, a second oil outlet pipe fixedly installed at the other port of the second double-ended connector, and two sets of air-cooling mechanisms provided on the top of the cooling tank, the two sets of air-cooling mechanisms being located above the first double-ended connector and the auxiliary cooling pipe respectively, and an electrically controlled valve being installed inside the first tee connector.

[0007] By adopting the above technical solution, the finished lubricating oil enters the main cooling pipe through the oil inlet pipe. The main cooling pipe is designed in a spiral shape, which can increase the contact area between the lubricating oil and the cold air generated by the air-cooling mechanism, thereby improving the cooling efficiency. According to the initial temperature of the finished lubricating oil entering the main cooling pipe, the cooling time of the finished lubricating oil in the cooling tank can be adjusted. If the initial temperature of the finished lubricating oil entering the main cooling pipe is low, the valve in the first three-way connector leading to the auxiliary cooling pipe is closed, and the lubricating oil can be discharged through the first oil outlet pipe after passing through the main cooling pipe. If the initial temperature of the finished lubricating oil entering the main cooling pipe is high, the valve in the first three-way connector leading to the first oil outlet pipe is closed, and the lubricating oil enters the auxiliary cooling pipe after passing through the main cooling pipe. At the same time, the air-cooling mechanism above the auxiliary cooling pipe is activated to cool the lubricating oil in the auxiliary cooling pipe a second time. The main cooling mechanism and the auxiliary cooling mechanism work together to cool the lubricating oil, which is beneficial to flexibly select according to the cooling requirements of the lubricating oil. At the same time, the use of the two sets of air-cooling mechanisms improves the rationality of resource utilization.

[0008] As a preferred technical solution of this application, temperature sensors are fixedly installed on the side of the main cooling pipe and the auxiliary cooling pipe near the oil outlet end, and a controller is fixedly installed on the outer wall of the cooling box. The controller is signal-connected to the temperature sensors and electrically connected to the control terminal of the electronically controlled valve.

[0009] By adopting the above technical solution, the temperature of the lubricating oil in the main cooling pipe that is about to complete its first cooling is measured by a temperature sensor installed on the outer wall of the main cooling pipe. If the temperature value detected by the temperature sensor on the outer wall of the main cooling pipe is lower than the preset temperature value, the controller closes the valve in the first three-way connector leading to the auxiliary cooling pipe. The lubricating oil can then be discharged through the first oil outlet pipe after passing through the main cooling pipe. If the temperature value is higher than the preset temperature value, the controller automatically closes the valve in the first three-way connector leading to the first oil outlet pipe. The lubricating oil then enters the auxiliary cooling pipe after passing through the main cooling pipe, thereby automatically controlling the cooling of the lubricating oil and improving the automation level of the device.

[0010] As a preferred technical solution of this application, the bottom of both the main cooling pipe and the auxiliary cooling pipe is fixedly installed with several sets of fixing pipe seats, and both the main cooling pipe and the auxiliary cooling pipe are fixedly installed inside the cooling box through several sets of fixing pipe seats.

[0011] By adopting the above technical solution, the main cooling pipe and auxiliary cooling pipe are supported by several sets of fixed pipe seats, which improves the stability of the working chamber of the main cooling pipe and auxiliary cooling pipe.

[0012] As a preferred embodiment of this application, the air-cooling mechanism includes a bracket, which is fixedly installed on the top of the cooling box. A motor is fixedly installed in the middle of the bracket, and a fan is fixedly installed at the output end of the motor.

[0013] By adopting the above technical solution, the fan is driven by a motor to cool the main cooling pipe or auxiliary cooling pipe. At the same time, the fan speed is controlled by the motor, which is conducive to flexibly controlling the cooling process of the lubricating oil.

[0014] As a preferred technical solution of this application, two sets of filter screens are fixedly installed on the top of the cooling box, and the two sets of filter screens are respectively located above the two sets of air-cooling mechanisms.

[0015] By adopting the above technical solution, two sets of filters prevent large impurities from being drawn into the fan's intake end, thus improving the protection effect of the fan.

[0016] As a preferred technical solution of this application, a sealing ring is fixedly installed at the installation end of the oil inlet pipe.

[0017] By adopting the above technical solution, the sealing ring ensures the airtightness when the oil inlet pipe is connected to external equipment, reducing the possibility of oil leakage at the oil inlet pipe and improving its practicality during use.

[0018] As a preferred technical solution of this application, a second tee connector is fixedly installed at the end of the first oil outlet pipe away from the main cooling pipe, and the other interface of the second tee connector is connected to the main drain pipe and the oil supply pipe respectively. A third double connector is fixedly installed at the end of the second oil outlet pipe away from the second double connector, and the end of the oil supply pipe away from the second tee connector is fixedly installed with the third double connector.

[0019] By adopting the above technical solution, the first oil outlet pipe and the second oil outlet pipe are connected through the second three-way connector, the third double-way connector, and the oil delivery pipe, so that the oil in the first oil outlet pipe and the second oil outlet pipe are both delivered to the main oil drain pipe. The main oil drain pipe can be connected to the oil inlet end of the oil storage tank, which improves the practicality of lubricating oil entering the oil storage tank.

[0020] As a preferred technical solution of this application, both the main cooling pipe 201 and the auxiliary cooling pipe are fixedly installed with heat-resistant layers inside.

[0021] By adopting the above technical solution, the heat-resistant layer improves the heat protection of the main cooling pipe and the auxiliary cooling pipe, and reduces the subsequent maintenance requirements of the main cooling pipe and the auxiliary cooling pipe.

[0022] The beneficial effects of this application are:

[0023] 1. Finished lubricating oil enters the main cooling pipe through the oil inlet pipe. The main cooling pipe is designed in a spiral shape, which increases the contact area between the lubricating oil and the cold air generated by the air-cooling mechanism, thereby improving cooling efficiency. Based on the initial temperature of the finished lubricating oil entering the main cooling pipe, the cooling time of the finished lubricating oil in the cooling tank can be adjusted. If the initial temperature of the finished lubricating oil entering the main cooling pipe is low, the valve in the first three-way connector leading to the auxiliary cooling pipe is closed, and the lubricating oil can be discharged through the first oil outlet pipe after passing through the main cooling pipe. If the initial temperature of the finished lubricating oil entering the main cooling pipe is high, the valve in the first three-way connector leading to the first oil outlet pipe is closed, and the lubricating oil enters the auxiliary cooling pipe after passing through the main cooling pipe. At the same time, the air-cooling mechanism above the auxiliary cooling pipe is activated to cool the lubricating oil in the auxiliary cooling pipe a second time. The main cooling mechanism and the auxiliary cooling mechanism work together to cool the lubricating oil, which is beneficial for flexible selection according to the cooling requirements of the lubricating oil. At the same time, the use of the two sets of air-cooling mechanisms improves the rationality of resource utilization.

[0024] 2. A temperature sensor installed on the outer wall of the main cooling pipe measures the temperature of the lubricating oil that is about to complete its first cooling process in the main cooling pipe. If the temperature value detected by the temperature sensor is lower than the preset temperature value, the controller closes the valve in the first three-way connector leading to the auxiliary cooling pipe. The lubricating oil can then be discharged through the first oil outlet pipe after passing through the main cooling pipe. If the temperature value is higher than the preset temperature value, the controller automatically closes the valve in the first three-way connector leading to the first oil outlet pipe. The lubricating oil then enters the auxiliary cooling pipe after passing through the main cooling pipe, thus automatically controlling the cooling of the lubricating oil and improving the automation level of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 Schematic diagram of the main cooling mechanism and auxiliary cooling mechanism;

[0027] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 4 This is a side view structural diagram of this application.

[0029] In the diagram: 1. Cooling tank; 2. Main cooling mechanism; 201. Main cooling pipe; 202. First double-connector; 203. Oil inlet pipe; 3. Auxiliary cooling mechanism; 301. Auxiliary cooling pipe; 302. Second double-connector; 4. First tee connector; 5. First oil outlet pipe; 6. Second oil outlet pipe; 7. Air-cooling mechanism; 701. Bracket; 702. Motor; 703. Fan; 8. Fixed pipe seat; 10. Temperature sensor; 11. Controller; 12. Filter screen; 14. Sealing ring; 15. Second tee connector; 16. Main oil drain pipe; 17. Third double-connector; 18. Oil delivery pipe. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Reference Figure 1-3 A cooling device for producing lubricating oil includes a cooling tank 1. The cooling tank 1 contains a main cooling mechanism 2 and an auxiliary cooling mechanism 3. The main cooling mechanism 2 includes a main cooling pipe 201, which is fixedly installed inside the cooling tank 1. A first double-ended connector 202 is fixedly installed at the oil inlet end of the main cooling pipe 201. An oil inlet pipe 203 is fixedly installed at the other end of the first double-ended connector 202. A first three-way connector 4 is fixedly installed at the oil outlet end of the first double-ended connector 202. The first double-ended connector 202 is connected to the auxiliary cooling pipe through the first three-way connector 4, and the other end of the first three-way connector 4 is connected to the auxiliary cooling pipe. The first oil outlet pipe 5 and the auxiliary cooling pipe 301 are fixedly installed with a second double-connector 302 at the oil outlet end. The other port of the second double-connector 302 is fixedly installed with a second oil outlet pipe 6. Two sets of air-cooling mechanisms 7 are provided on the top of the cooling box 1. The two sets of air-cooling mechanisms 7 are located above the first double-connector 202 and the auxiliary cooling pipe 301, respectively. An electric control valve is installed inside the first three-connector 4. Several sets of fixed pipe seats 8 are fixedly installed at the bottom of the main cooling pipe 201 and the auxiliary cooling pipe 301. The main cooling pipe 201 and the auxiliary cooling pipe 301 are fixedly installed inside the cooling box 1 through several sets of fixed pipe seats 8.

[0032] Finished lubricating oil enters the main cooling pipe 201 through the oil inlet pipe 203. The main cooling pipe 201 is spiral-shaped, which increases the contact area between the lubricating oil and the cold air generated by the air-cooling mechanism 7, thereby improving cooling efficiency. Based on the initial temperature of the finished lubricating oil entering the main cooling pipe 201, the cooling time of the finished lubricating oil in the cooling tank 1 can be adjusted. If the initial temperature of the finished lubricating oil entering the main cooling pipe 201 is low, the valve in the first three-way connector 4 leading to the auxiliary cooling pipe 301 is closed, and the lubricating oil can be discharged through the first oil outlet pipe 5 after passing through the main cooling pipe 201. If the initial temperature of the finished lubricating oil entering the main cooling pipe 201 is high, the first... The valve inside the three-way connector 4 leads to the first oil outlet pipe 5. The lubricating oil passes through the main cooling pipe 201 and then enters the auxiliary cooling pipe 301. At the same time, the air-cooling mechanism 7 above the auxiliary cooling pipe 301 is activated to cool the lubricating oil in the auxiliary cooling pipe 301 for the second time. The main cooling mechanism 2 and the auxiliary cooling mechanism 3 work together to cool the lubricating oil, which is beneficial to flexibly select according to the cooling requirements of the lubricating oil. At the same time, the use of two sets of air-cooling mechanisms 7 together improves the rationality of resource utilization. Several sets of fixed pipe seats 8 support the main cooling pipe 201 and the auxiliary cooling pipe 301, which improves the stability of the working chamber of the main cooling pipe 201 and the auxiliary cooling pipe 301.

[0033] Reference Figure 1 Temperature sensors 10 are fixedly installed on the side of the main cooling pipe 201 and the auxiliary cooling pipe 301 near the oil outlet. A controller 11 is fixedly installed on the outer wall of the cooling box 1. The controller 11 is connected to the temperature sensor 10 and electrically connected to the control terminal of the electric control valve. The air-cooling mechanism 7 includes a bracket 701, which is fixedly installed on the top of the cooling box 1. A motor 702 is fixedly installed in the middle of the bracket 701, and a fan 703 is fixedly installed at the output end of the motor 702.

[0034] Temperature sensor 10, installed on the outer wall of main cooling pipe 201, measures the temperature of the lubricating oil in main cooling pipe 201 that is about to complete its first cooling. If the temperature value detected by the temperature sensor 10 is lower than the preset temperature value, the controller 11 closes the valve in the first three-way connector 4 leading to the auxiliary cooling pipe 301. The lubricating oil can then be discharged through the first oil outlet pipe 5 after passing through main cooling pipe 201. If the temperature value is higher than the preset temperature value, the controller automatically closes the valve in the first three-way connector 4 leading to the first oil outlet pipe 5. The lubricating oil then enters the auxiliary cooling pipe 301 after passing through main cooling pipe 201, thus automatically controlling the cooling of the lubricating oil and improving the automation level of the device. The motor 702 drives the fan 703 to rotate, cooling the main cooling pipe 201 or the auxiliary cooling pipe 301. At the same time, the motor 702 controls the speed of the fan 703, which is beneficial for flexibly controlling the cooling process of the lubricating oil.

[0035] Reference Figure 1 Two sets of filter screens 12 are fixedly installed on the top of the cooling box 1, and the two sets of filter screens 12 are respectively located above the two sets of air-cooling mechanisms 7; a second three-way connector 15 is fixedly installed at the end of the first oil outlet pipe 5 away from the main cooling pipe 201, and the other interface of the second three-way connector 15 is connected to the main oil drain pipe 16 and the oil supply pipe 18 respectively; a third two-way connector 17 is fixedly installed at the end of the second oil outlet pipe 6 away from the second two-way connector 302; and the end of the oil supply pipe 18 away from the second three-way connector 15 is connected to the third two-way connector 302. The three-way connector 17 is fixedly installed; the two sets of filter screens 12 prevent the suction end of the fan 703 from sucking in large impurities, thus improving the protection effect of the fan 703; the first oil outlet pipe 5 and the second oil outlet pipe 6 are connected through the second three-way connector 15, the third two-way connector 17, and the oil supply pipe 18, so that the oil in the first oil outlet pipe 5 and the second oil outlet pipe 6 are both transported to the main oil drain pipe 16. The main oil drain pipe 16 can be connected to the oil inlet end of the oil storage tank, which improves the practicality of lubricating oil entering the oil storage tank.

[0036] Reference Figure 1 A sealing ring 14 is fixedly installed at the installation end of the oil inlet pipe 203; a heat-resistant layer is fixedly installed inside both the main cooling pipe 201 and the auxiliary cooling pipe 301; the sealing ring 14 ensures the sealing performance when the oil inlet pipe 203 is connected to external equipment, reduces the possibility of oil leakage at the oil inlet pipe 203, and improves its practicality during use; the heat-resistant layer improves the heat protection of the main cooling pipe 201 and the auxiliary cooling pipe 301, and reduces the subsequent maintenance requirements of the main cooling pipe 201 and the auxiliary cooling pipe 301.

[0037] Working principle: Finished lubricating oil enters the main cooling pipe 201 through the oil inlet pipe 203. The main cooling pipe 201 is spiral-shaped, which increases the contact area between the lubricating oil and the cold air generated by the air-cooling mechanism 7, improving cooling efficiency. Based on the initial temperature of the finished lubricating oil entering the main cooling pipe 201, the cooling time of the finished lubricating oil in the cooling tank 1 can be adjusted. If the initial temperature of the finished lubricating oil entering the main cooling pipe 201 is low, the valve in the first three-way connector 4 leading to the auxiliary cooling pipe 301 is closed, and the lubricating oil can be discharged through the first oil outlet pipe 5 after passing through the main cooling pipe 201. If the initial temperature of the finished lubricating oil entering the main cooling pipe 201 is high, the valve in the first three-way connector 4 leading to the first oil outlet pipe 5 is closed, and the lubricating oil enters the auxiliary cooling pipe 301 after passing through the main cooling pipe 201. At the same time, the air-cooling mechanism 7 above the auxiliary cooling pipe 301 is activated to perform a second cooling of the lubricating oil in the auxiliary cooling pipe 301. The main cooling mechanism 2 and the auxiliary cooling mechanism 3 work together to cool the lubricating oil, which is beneficial for flexible selection according to the cooling requirements of the lubricating oil. At the same time, the use of two sets of air-cooling mechanisms 7 improves the rationality of resource utilization. The temperature sensor 10 installed on the outer wall of the main cooling pipe 201 measures the temperature of the lubricating oil in the main cooling pipe 201 that is about to complete the first cooling. If the temperature value detected by the temperature sensor 10 on the outer wall of the main cooling pipe 201 is lower than the preset temperature value, the controller 11 closes the valve in the first three-way connector 4 leading to the auxiliary cooling pipe 301. After passing through the main cooling pipe 201, the lubricating oil can be discharged through the first oil outlet pipe 5. If the temperature value is higher than the preset temperature value, the controller automatically controls the closure of the valve in the first three-way connector 4 leading to the first oil outlet pipe 5. After passing through the main cooling pipe 201, the lubricating oil enters the auxiliary cooling pipe 301. Thus, the cooling of the lubricating oil is automatically controlled, which improves the automation level of the device.

[0038] Among them, the main cooling pipe 201 and the auxiliary cooling pipe 301 are supported by several sets of fixed pipe seats 8, which improves the stability of the working chamber of the main cooling pipe 201 and the auxiliary cooling pipe 301. The fan 703 is driven by the motor 702 to rotate, which cools the main cooling pipe 201 or the auxiliary cooling pipe 301. At the same time, the speed of the fan 703 is controlled by the motor 702, which is conducive to flexibly controlling the cooling process of the lubricating oil.

[0039] Meanwhile, the two sets of filter screens 12 prevent large impurities from being drawn into the suction end of the blower 703, thus improving the protection effect of the blower 703; the sealing ring 14 ensures the sealing of the oil inlet pipe 203 when connected to external equipment, reducing the possibility of oil leakage at the oil inlet pipe 203 and improving its practicality during use.

[0040] In addition, the first oil outlet pipe 5 and the second oil outlet pipe 6 are connected by the second three-way connector 15, the third double-way connector 17, and the oil supply pipe 18, so that the oil in the first oil outlet pipe 5 and the second oil outlet pipe 6 can be transported to the main oil drain pipe 16. The main oil drain pipe 16 can be connected to the oil inlet end of the oil storage tank, which improves the practicality of lubricating oil entering the oil storage tank. The heat-resistant layer improves the heat protection of the main cooling pipe 201 and the auxiliary cooling pipe 301, reducing the subsequent maintenance requirements of the main cooling pipe 201 and the auxiliary cooling pipe 301.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cooling device for producing lubricating oil, comprising a cooling tank (1), characterized in that, The cooling box (1) is equipped with a main cooling mechanism (2) and an auxiliary cooling mechanism (3). The main cooling mechanism (2) includes a main cooling pipe (201), which is fixedly installed inside the cooling box (1). A first double-ended connector (202) is fixedly installed at the oil inlet end of the main cooling pipe (201). An oil inlet pipe (203) is fixedly installed at the other end of the first double-ended connector (202). A first three-way connector (4) is fixedly installed at the oil outlet end of the first double-ended connector (202). The first double-ended connector (202) is connected to the first three-way connector (4) through the first three-way connector (4). The first three-way connector (4) has an auxiliary cooling pipe (301) and a first oil outlet pipe (5) connected to another interface. The oil outlet end of the auxiliary cooling pipe (301) is fixedly installed with a second double-way connector (302). The other interface of the second double-way connector (302) is fixedly installed with a second oil outlet pipe (6). The top of the cooling box (1) is provided with two sets of air-cooling mechanisms (7). The two sets of air-cooling mechanisms (7) are located above the first double-way connector (202) and the auxiliary cooling pipe (301), respectively. An electric control valve is installed inside the first three-way connector (4).

2. The cooling equipment for producing lubricating oil according to claim 1, characterized in that, Temperature sensors (10) are fixedly installed on the side of the main cooling pipe (201) and the auxiliary cooling pipe (301) near the oil outlet. A controller (11) is fixedly installed on the outer wall of the cooling box (1). The controller (11) is connected to the temperature sensor (10) and is electrically connected to the control end of the electric valve.

3. The cooling equipment for producing lubricating oil according to claim 1, characterized in that, The bottom of the main cooling pipe (201) and the auxiliary cooling pipe (301) are fixedly installed with several sets of fixed pipe seats (8). The main cooling pipe (201) and the auxiliary cooling pipe (301) are fixedly installed inside the cooling box (1) by several sets of fixed pipe seats (8).

4. The cooling equipment for producing lubricating oil according to claim 1, characterized in that, The air-cooling mechanism (7) includes a bracket (701), which is fixedly installed on the top of the cooling box (1). A motor (702) is fixedly installed in the middle of the bracket (701), and a fan (703) is fixedly installed at the output end of the motor (702).

5. A cooling device for producing lubricating oil according to claim 1, characterized in that, Two sets of filter screens (12) are fixedly installed on the top of the cooling box (1), and the two sets of filter screens (12) are respectively located above the two sets of air-cooling mechanisms (7).

6. A cooling device for producing lubricating oil according to claim 1, characterized in that, A sealing ring (14) is fixedly installed at the mounting end of the oil inlet pipe (203).

7. A cooling device for producing lubricating oil according to claim 1, characterized in that, The first oil outlet pipe (5) is fixedly installed with a second three-way connector (15) at one end away from the main cooling pipe (201). The other interface of the second three-way connector (15) is connected to the main drain pipe (16) and the oil supply pipe (18). The second oil outlet pipe (6) is fixedly installed with a third two-way connector (17) at one end away from the second two-way connector (302). The oil supply pipe (18) is fixedly installed with the third two-way connector (17) at one end away from the second three-way connector (15).

8. A cooling device for producing lubricating oil according to claim 1, characterized in that, The main cooling pipe (201) and the auxiliary cooling pipe (301) are both fixedly installed with heat-resistant layers inside.

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