Multi-layer oil filter

Abstract

The utility model discloses a multi-layer oil filter which comprises a tank body, a filter mechanism and a detection mechanism, a sealing cover is fixedly connected to the upper end of the tank body, a butt joint plate is arranged on the lower side of the sealing cover, and a support is arranged on the lower side of the outer surface of the tank body; the filtering mechanism comprises a mounting shell, an outer centrifugal mounting frame, guide grooves, a centrifugal frame, guide strips and a first filter screen, the mounting shell is arranged on the inner wall of the bottom side of the tank body, the upper surface of the mounting shell is rotatably connected with the outer centrifugal mounting frame, the guide grooves which are uniformly distributed are formed in the centrifugal mounting frame, and the guide strips are slidably connected into the guide grooves; the outer surfaces of the four guide strips are fixedly connected with a centrifugal frame, a first filter screen is arranged on the outer surface of the centrifugal frame, and the upper surface of the centrifugal frame is rotationally connected with the lower surface of the butt joint plate. According to the multi-layer oil filter, waste residues in crude oil can be filtered in a multi-layer mode, and the filtering effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pressing, in particular to a multi-layer oil filter. Background Art

[0002] In the oil production process, the crude oil after the initial oil pressing contains more impurities and other compounds. To ensure safety, the crude oil needs to be filtered.

[0003] In the prior art, the pneumatic oil filter commonly used in the oil pressing and filtering device is arranged on the bottom plate of the inner cavity, and then the filter cloth is laid, and the oil is compressed and filtered by ventilation in the tank, and the oil is discharged from the oil outlet at the bottom of the tank.

[0004] The oil filter structure in the above-mentioned prior art has only one layer of filter cloth, and the filtering area is small. When the same amount of oil needs to be filtered, the filtering efficiency is low. In addition, since the cover needs to be opened to clean and remove the residue from the filter device each time the oil is filtered, the coarse oil dirt needs to be manually removed, which is highly dependent on manual labor and the filter unit is inconvenient to disassemble. Therefore, we propose a multi-layer oil filter. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-layer oil filter which can filter crude oil in multiple layers with good filtering effect and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer oil filter, including a tank body, a filtering mechanism and a detection mechanism;

[0007] Tank body: a sealing cover is fixedly connected to its upper end, a docking plate is provided on the lower side of the sealing cover, and a bracket is provided on the lower side of the outer surface of the tank body;

[0008] Filter mechanism: It includes a mounting shell, an outer centrifugal mounting frame, a guide groove, a centrifugal frame, a guide bar and a first filter screen. The mounting shell is arranged on the inner wall of the bottom side of the tank body. The upper surface of the mounting shell is rotatably connected with the outer centrifugal mounting frame. The inside of the centrifugal mounting frame is provided with evenly distributed guide grooves. The inside of the guide groove is slidably connected with the guide bar. The outer surfaces of the four guide bars are fixedly connected with a centrifugal frame. The outer surface of the centrifugal frame is provided with a first filter screen. The upper surface of the centrifugal frame is rotatably connected with the lower surface of the docking plate.

[0009] Detection mechanism: It is set on the outer side of the tank and can filter the waste residue in the crude oil in multiple layers with good filtering effect.

[0010] Furthermore, it also includes a single chip microcomputer, which is located outside the oil filter. The input end of the single chip microcomputer is electrically connected to an external power supply to control the normal operation of the electrical appliance.

[0011] Furthermore, the filtering mechanism also includes a scraping assembly and a reduction motor. The scraping assembly includes a rotating rod, an arc-shaped scraper, a vertical tube and a suction port. The rotating rod is rotatably connected to the lower surface of the sealing cover. The lower side of the outer arc surface of the rotating rod is provided with evenly distributed arc-shaped scrapers. The rear side of the sealing cover is provided with a vertical tube. The lower side of the outer arc surface of the vertical tube is provided with evenly distributed suction ports. The upper end of the vertical tube is connected to an external sewage suction device. A reduction motor is provided in the middle of the upper end of the sealing cover. The output shaft of the reduction motor is fixedly connected to the upper end of the rotating rod. The input end of the reduction motor is electrically connected to the output end of the single-chip microcomputer to realize the function of removing dirt.

[0012] Furthermore, the filter mechanism also includes a lower filter assembly, which includes a lower filter screen, a bottom docking frame, a docking groove, a convex plate and a docking column. The convex plate is located at the lower end of the interior of the tank body, and the upper surface of the convex plate is provided with evenly distributed docking columns. The upper end of the convex plate is placed with a bottom docking frame, and the lower surface of the bottom docking frame is provided with evenly distributed docking grooves. The interiors of the docking grooves are snap-fitted with the outer surfaces of the docking columns corresponding to the upper and lower positions. The interior of the bottom docking frame is provided with a lower filter screen, and the inner arc surface of the bottom docking frame is slidably connected to the outer arc surface of the mounting shell, and the outer arc surface of the bottom docking frame is slidably connected to the inner arc surface of the tank body to achieve the function of secondary filtration.

[0013] Furthermore, the filtering mechanism also includes a centrifugal motor, which is arranged inside the mounting shell, the output shaft of the centrifugal motor is fixedly connected to the lower end of the external centrifugal mounting frame, and the input end of the centrifugal motor is electrically connected to the output end of the single-chip microcomputer to provide power for the centrifuge.

[0014] Furthermore, the detection mechanism includes a liquid level gauge, a pressure gauge and a temperature sensor. The liquid level gauge is arranged on the front side of the outer arc surface of the tank body, the outer arc surface of the tank body is provided with a pressure gauge, the outer arc surface of the tank body is provided with a temperature sensor, and a heating plate is provided in the middle of the outer arc surface of the tank body. The temperature sensor is electrically connected to the single-chip microcomputer in both directions. A pressure regulating tube is provided on the upper right side of the outer arc surface of the tank body, the right end of the pressure regulating tube is connected to an external air compressor, and the input end of the heating plate is electrically connected to the output end of the single-chip microcomputer to realize the function of regulating the working environment.

[0015] Furthermore, it also includes an oil inlet pipe, which is arranged on the front side of the upper surface of the tank body, the front end of the oil inlet pipe is connected to an external oil supply device, the lower surface of the tank body is provided with an oil outlet pipe, the right end of the oil outlet pipe is connected to an external collection device, and the middle parts of the oil inlet pipe and the oil outlet pipe are connected in series with solenoid valves, and the input ends of the two solenoid valves are respectively electrically connected to the output ends of the single-chip microcomputer to realize the functions of oil inlet and oil discharge.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the multi-layer oil filter has the following advantages:

[0017] 1. After the crude oil is discharged, the single-chip microcomputer can be adjusted to operate the centrifugal motor at a low speed, thereby driving the external centrifugal mounting frame to rotate at a high speed. At the same time, the single-chip microcomputer can be adjusted to operate the reduction motor, and the output shaft of the reduction motor can be rotated, thereby driving the arc scraper to rotate through the rotating rod. The arc scraper rotates in the opposite direction to the external centrifugal mounting frame, stirring the coarse oil in the first filter screen. At this time, the sewage suction equipment can be used to discharge the coarse oil in the first filter screen through the suction port and the vertical pipe to the outside of the device. The coarse oil does not need to be manually scooped out, reducing the dependence on manual operation.

[0018] 2. The upper filter and the lower filter are very easy to disassemble, which facilitates the later maintenance of the oil filter and extends the service life.

[0019] 2. When multi-layer oil filtering is required, the crude oil is filtered through the first filter and slowly penetrates to the outside of the first filter and the inside of the tank. At this time, the single-chip microcomputer can be regulated, and the heating plate and the temperature sensor can be operated separately to heat the crude oil inside the tank to 80 degrees. At this time, the external air compressor can be regulated, and then the internal air pressure of the tank is adjusted to the specified pressure according to the display of the pressure gauge. At this time, the single-chip microcomputer can be regulated, the centrifugal motor can be operated, and the output shaft of the centrifugal motor can be operated at high speed, thereby driving the external centrifugal mounting frame to rotate at high speed. At this time, the debris inside the crude oil gathers inside the first filter. At this time, the pure crude oil will be discharged between the first filter and the tank. At this time, the single-chip microcomputer can be regulated, and the solenoid valve on the lower side is opened. At this time, the external air compressor can be regulated, and the pressure in the tank increases. At this time, the crude oil is affected by the pressure, and the external collection equipment filters the crude oil through the lower filter for secondary filtration, and then the secondary filtered crude oil is discharged into the external collection equipment through the oil outlet pipe. The waste residue in the crude oil can be filtered in multiple layers, and the filtering effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the local structure of the filter mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the tank body of the utility model;

[0023] Figure 4 This is a schematic diagram of the partial structure of the lower filter assembly of the utility model;

[0024] Figure 5 It is a schematic diagram of the local structure of the lower filter assembly of the utility model.

[0025] In the figure: 1 tank body, 2 sealing cover, 3 filtering mechanism, 31 mounting shell, 32 outer centrifugal mounting frame, 33 guide groove, 34 centrifugal frame, 35 guide bar, 36 first filter screen, 37 scraping assembly, 371 rotating rod, 372 arc scraper, 373 vertical pipe, 374 suction port, 38 reduction motor, 39 lower filter assembly, 391 lower filter screen, 392 bottom docking frame, 393 docking groove, 394 convex plate, 395 docking column, 4 heating plate, 5 detection mechanism, 51 liquid level meter, 52 pressure gauge, 53 temperature sensor, 6 pressure regulating pipe, 7 oil inlet pipe, 8 solenoid valve, 9 bracket, 10 oil outlet pipe, 11 single chip microcomputer, 12 docking plate, 13 centrifugal motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 , This embodiment provides a technical solution: a multi-layer oil filter, including a tank body 1, a filtering mechanism 3 and a detection mechanism 5;

[0028] Tank body 1: A sealing cover 2 is fixedly connected to its upper end, a docking plate 12 is provided on the lower side of the sealing cover 2, a bracket 9 is provided on the lower side of the outer surface of the tank body 1, and a single-chip microcomputer 11 is provided. The single-chip microcomputer 11 is located outside the oil filter, and the input end of the single-chip microcomputer 11 is electrically connected to an external power supply. It also includes an oil inlet pipe 7, which is arranged on the front side of the upper surface of the tank body 1, and the front end of the oil inlet pipe 7 is externally connected to an external oil supply device. An oil outlet pipe 10 is provided on the lower surface of the tank body 1, and the right end of the oil outlet pipe 10 is externally connected to an external collection device. The middle parts of the oil inlet pipe 7 and the oil outlet pipe 10 are both connected in series with electromagnetic valves 8, and the input ends of the two electromagnetic valves 8 are respectively electrically connected to the output ends of the single-chip microcomputer 11. The oil filter is placed on a designated station through the bracket 9;

[0029] The filter mechanism 3 includes a mounting shell 31, an outer centrifugal mounting frame 32, a guide groove 33, a centrifugal frame 34, a guide bar 35 and a first filter screen 36. The mounting shell 31 is arranged on the inner wall of the bottom side of the tank body 1. The upper surface of the mounting shell 31 is rotatably connected with the outer centrifugal mounting frame 32. The interior of the centrifugal mounting frame 32 is provided with evenly distributed guide grooves 33. The interior of the guide groove 33 is slidably connected with the guide bar 35. The outer surfaces of the four guide bars 35 are fixedly connected with a centrifugal frame 34. The outer surface of the centrifugal frame 34 is provided with a first filter screen 36. The upper surface of the centrifugal frame 34 is rotatably connected with the lower surface of the docking plate 12. The filter mechanism 3 also includes a scraping assembly 37 and a reduction motor 38. The scraping assembly 37 includes a rotating rod 371, an arc scraper 372, a vertical pipe 373 and Suction port 374, a rotating rod 371 is rotatably connected to the lower surface of the sealing cover 2, an arc scraper 372 is evenly distributed on the lower side of the outer arc surface of the rotating rod 371, a vertical tube 373 is provided on the rear side of the sealing cover 2, and a suction port 374 is evenly distributed on the lower side of the outer arc surface of the vertical tube 373. The upper end of the vertical tube 373 is externally connected to an external sewage suction device, and a reduction motor 38 is provided in the middle of the upper end of the sealing cover 2. The output shaft of the reduction motor 38 is fixedly connected to the upper end of the rotating rod 371, and the input end of the reduction motor 38 is electrically connected to the output end of the single-chip computer 11. The filtering mechanism 3 also includes a lower filter assembly 39, and the lower filter assembly 39 includes a lower filter screen 391, a bottom docking frame 392, a docking groove 393, a convex plate 394 and a docking column 395, and the convex plate 394 is located At the lower end of the inner part of the tank body 1, the upper surface of the protruding plate 394 is provided with evenly distributed docking columns 395, the upper end of the protruding plate 394 is placed with a bottom docking frame 392, the lower surface of the bottom docking frame 392 is provided with evenly distributed docking grooves 393, the interior of the docking grooves 393 are all snap-fitted with the outer surfaces of the docking columns 395 corresponding to the upper and lower positions, the interior of the bottom docking frame 392 is provided with a lower side filter screen 391, the inner arc surface of the bottom docking frame 392 is slidably connected to the outer arc surface of the mounting shell 31, the outer arc surface of the bottom docking frame 392 is slidably connected to the inner arc surface of the tank body 1, the filtering mechanism 3 also includes a centrifugal motor 13, the centrifugal motor 13 is arranged inside the mounting shell 31, the output shaft of the centrifugal motor 13 is fixedly connected to the lower end of the outer centrifugal mounting frame 32, the centrifugal motor 13 The input end is electrically connected to the output end of the single-chip microcomputer 11. At this time, the single-chip microcomputer 11 can be regulated, the solenoid valve 8 on the upper side is operated, and the crude oil enters the interior of the first filter screen 36 through the oil inlet pipe 7, and then the crude oil is filtered by the first filter screen 36 and slowly penetrates to the outside of the first filter screen 36 and the interior of the tank body 1. At this time, the single-chip microcomputer 11 can be regulated, the centrifugal motor 13 is operated, and the output shaft of the centrifugal motor 13 is operated at a high speed, thereby driving the external centrifugal mounting frame 32 to rotate at a high speed. At this time, the debris inside the crude oil gathers to the inside of the first filter screen 36. At this time, the pure crude oil will be discharged between the first filter screen 36 and the tank body 1. At this time, the single-chip microcomputer 11 can be regulated, and the solenoid valve 8 on the lower side is opened. At this time, the external air compressor can be regulated, and the pressure in the tank body 1 increases.At this time, the crude oil is affected by the pressure, and the external collection device filters the crude oil through the lower filter 391 for secondary filtration, and then the secondary filtered crude oil is discharged into the external collection device through the oil outlet pipe 10. After the crude oil is discharged, the single-chip microcomputer 11 can be regulated to operate the centrifugal motor 13 at a low speed, thereby driving the external centrifugal mounting frame 32 to rotate at a high speed. At the same time, the single-chip microcomputer 11 can be regulated to operate the reduction motor 38, and the output shaft of the reduction motor 38 can be rotated, thereby driving the arc scraper 372 to rotate through the rotating rod 371. The arc scraper 372 rotates in the opposite direction to the external centrifugal mounting frame 32, stirring the coarse oil in the first filter 36. At this time, the sewage suction device can be used to discharge the coarse oil in the first filter 36 to the outside of the device through the suction port 374 and the vertical pipe 373;

[0030] Detection mechanism 5: It is arranged on the outer side of the tank body 1. The detection mechanism 5 includes a liquid level meter 51, a pressure gauge 52 and a temperature sensor 53. The liquid level meter 51 is arranged on the front side of the outer arc surface of the tank body 1. The outer arc surface of the tank body 1 is provided with a pressure gauge 52. The outer arc surface of the tank body 1 is provided with a temperature sensor 53. A heating plate 4 is provided in the middle of the outer arc surface of the tank body 1. The temperature sensor 53 is bidirectionally electrically connected to the single-chip microcomputer 11. A pressure regulating tube 6 is provided on the upper right side of the outer arc surface of the tank body 1. The right end of the pressure regulating tube 6 is externally connected to an external air compressor. The input end of the heating plate 4 is electrically connected to the output end of the single-chip microcomputer 11. At this time, the single-chip microcomputer 11 can be regulated, and the heating plate 4 and the temperature sensor 53 can be operated separately to heat the crude oil inside the tank body 1 to eighty degrees. At this time, the external air compressor can be regulated, and then the internal air pressure of the tank body 1 is adjusted to a specified pressure according to the display of the pressure gauge 52.

[0031] The working principle of a multi-layer oil filter provided by the utility model is as follows: the oil filter is placed on a designated work station through a bracket 9, at which time the single-chip microcomputer 11 can be regulated, the solenoid valve 8 on the upper side is operated, the crude oil enters the first filter screen 36 through the oil inlet pipe 7, and then the crude oil is filtered by the first filter screen 36 and slowly penetrates to the outside of the first filter screen 36 and the inside of the tank body 1, at which time the single-chip microcomputer 11 can be regulated, the heating plate 4 and the temperature sensor 53 can be operated respectively to heat the crude oil inside the tank body 1 to eighty degrees, at which time the external air compressor can be regulated, and then the internal air pressure of the tank body 1 is adjusted to a specified pressure according to the display of the pressure gauge 52, at which time the single-chip microcomputer 11 can be regulated, the centrifugal motor 13 can be operated, the output shaft of the centrifugal motor 13 is operated at high speed, and then the external centrifugal mounting frame 32 is driven to rotate at high speed, at which time the debris inside the crude oil gathers to the inside of the first filter screen 36, and at this time the pure crude oil will be discharged to the first filter screen 3 6 and the tank body 1, at this time, the single-chip microcomputer 11 can be regulated, and the solenoid valve 8 on the lower side is opened. At this time, the external air compressor can be regulated, and the pressure in the tank body 1 increases. At this time, the crude oil is affected by the pressure, and the external collection equipment filters the crude oil through the lower filter screen 391 for secondary filtration, and then the secondary filtered crude oil is discharged into the external collection equipment through the oil outlet pipe 10. After the crude oil is discharged, the single-chip microcomputer 11 can be regulated, and the centrifugal motor 13 runs at a low speed, thereby driving the external centrifugal mounting frame 32 to rotate at a high speed. At the same time, the single-chip microcomputer 11 can be regulated, and the reduction motor 38 runs, and the output shaft of the reduction motor 38 rotates, and then the arc scraper 372 is driven to rotate through the rotating rod 371. The arc scraper 372 rotates in the opposite direction to the external centrifugal mounting frame 32, stirring the coarse oil in the first filter screen 36. At this time, the sewage suction equipment can discharge the coarse oil in the first filter screen 36 to the outside of the device through the suction port 374 and the vertical pipe 373.

[0032] It is worth noting that the single chip microcomputer 11 disclosed in the above embodiment is specifically model S7-200, and the centrifugal motor 13, the reduction motor 38, the liquid level gauge 51, the pressure gauge 52, the temperature sensor 53 and the solenoid valve 8 can be freely configured according to the actual application scenario. It is recommended to use YP100B3 permanent magnet brushless DC motor for the centrifugal motor 13, and it is recommended to use GH32 reduction motor for the reduction motor 38. It is recommended to use UHZ series magnetic level gauge for the liquid level gauge 51, and it is recommended to use D2000 series pointer differential pressure gauge for the pressure gauge 52. It is recommended to use PT100 model temperature sensor for the temperature sensor 53, and it is recommended to use GSR electric valve for the solenoid valve 8. The single chip microcomputer 11 controls the centrifugal motor 13, the reduction motor 38, the temperature sensor 53 and the solenoid valve 8. The operation adopts the methods commonly used in the prior art.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-layer oil filter, characterized in that: It comprises a tank body (1), a filtering mechanism (3) and a detection mechanism (5); The tank body (1) has a sealing cover (2) fixedly connected to its upper end, a docking plate (12) is provided on the lower side of the sealing cover (2), and a bracket (9) is provided on the lower side of the outer surface of the tank body (1); A filter mechanism (3): comprising a mounting shell (31), an outer centrifugal mounting frame (32), a guide groove (33), a centrifugal frame (34), a guide bar (35) and a first filter screen (36); the mounting shell (31) is arranged on the inner wall of the bottom side of the tank body (1); the upper surface of the mounting shell (31) is rotatably connected to the outer centrifugal mounting frame (32); the interior of the centrifugal mounting frame (32) is provided with evenly distributed guide grooves (33); the interior of the guide groove (33) is slidably connected to the guide bar (35); the outer surfaces of the four guide bars (35) are fixedly connected to a centrifugal frame (34); the outer surface of the centrifugal frame (34) is provided with a first filter screen (36); the upper surface of the centrifugal frame (34) is rotatably connected to the lower surface of the docking plate (12); Detection mechanism (5): It is arranged on the outer side of the tank body (1).

2. A multi-layer oil filter according to claim 1, characterized in that: It also comprises a single-chip microcomputer (11), wherein the single-chip microcomputer (11) is located outside the oil filter, and an input end of the single-chip microcomputer (11) is electrically connected to an external power supply.

3. A multi-layer oil filter according to claim 2, characterized in that: The filtering mechanism (3) further comprises a scraping assembly (37) and a reduction motor (38). The scraping assembly (37) comprises a rotating rod (371), an arc-shaped scraper (372), a vertical pipe (373) and a suction port (374). The rotating rod (371) is rotatably connected to the lower surface of the sealing cover (2). The lower side of the outer arc surface of the rotating rod (371) is provided with evenly distributed arc-shaped scrapers (372). The rear side of the sealing cover (2) is provided with a vertical pipe (373). The lower side of the outer arc surface of the vertical pipe (373) is provided with evenly distributed suction ports (374). The upper end of the vertical pipe (373) is externally connected to an external sewage suction device. The middle part of the upper end of the sealing cover (2) is provided with a reduction motor (38). The output shaft of the reduction motor (38) is fixedly connected to the upper end of the rotating rod (371). The input end of the reduction motor (38) is electrically connected to the output end of the single-chip computer (11).

4. A multi-layer oil filter according to claim 1, characterized in that: The filter mechanism (3) further comprises a lower filter assembly (39), the lower filter assembly (39) comprising a lower filter screen (391), a bottom docking frame (392), a docking groove (393), a convex plate (394) and a docking column (395); the convex plate (394) is located at the lower end of the interior of the tank body (1); the upper surface of the convex plate (394) is provided with evenly distributed docking columns (395); the upper end of the convex plate (394) is provided with a bottom docking frame (392); the lower surface of the bottom docking frame (392) is provided with evenly distributed docking grooves (393); the interior of the docking grooves (393) are all snap-fitted with the outer surfaces of the docking columns (395) at corresponding upper and lower positions; the interior of the bottom docking frame (392) is provided with a lower filter screen (391); the inner arc surface of the bottom docking frame (392) is slidably connected to the outer arc surface of the mounting shell (31); and the outer arc surface of the bottom docking frame (392) is slidably connected to the inner arc surface of the tank body (1).

5. A multi-layer oil filter according to claim 2, characterized in that: The filtering mechanism (3) further comprises a centrifugal motor (13), the centrifugal motor (13) being arranged inside the mounting shell (31), the output shaft of the centrifugal motor (13) being fixedly connected to the lower end of the outer centrifugal mounting frame (32), and the input end of the centrifugal motor (13) being electrically connected to the output end of the single-chip computer (11).

6. A multi-layer oil filter according to claim 2, characterized in that: The detection mechanism (5) comprises a liquid level meter (51), a pressure gauge (52) and a temperature sensor (53); the liquid level meter (51) is arranged on the front side of the outer arc surface of the tank body (1); the outer arc surface of the tank body (1) is provided with a pressure gauge (52); the outer arc surface of the tank body (1) is provided with a temperature sensor (53); a heating plate (4) is provided in the middle of the outer arc surface of the tank body (1); the temperature sensor (53) is bidirectionally electrically connected to the single-chip computer (11); a pressure regulating tube (6) is provided on the upper right side of the outer arc surface of the tank body (1); the right end of the pressure regulating tube (6) is externally connected to an external air compressor; and the input end of the heating plate (4) is electrically connected to the output end of the single-chip computer (11).

7. A multi-layer oil filter according to claim 1, characterized in that: It also comprises an oil inlet pipe (7), the oil inlet pipe (7) being arranged on the front side of the upper surface of the tank body (1), the front end of the oil inlet pipe (7) being externally connected to an external oil supply device, an oil outlet pipe (10) being arranged on the lower surface of the tank body (1), the right end of the oil outlet pipe (10) being externally connected to an external collection device, and electromagnetic valves (8) being connected in series in the middle of the oil inlet pipe (7) and the oil outlet pipe (10), the input ends of the two electromagnetic valves (8) being respectively electrically connected to the output ends of the single chip computer (11).

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