Efficient oil mist separation device for heat pump rectification

Abstract

The invention discloses an efficient oil mist separation device for heat pump rectification, and relates to the technical field of oil mist separation and recovery, the efficient oil mist separation device comprises an oil mist separation tank and a self-cleaning assembly, and the top end of the oil mist separation tank is fixedly provided with the self-cleaning assembly. In the using process, when the fan is shut down due to faults, after the pressure threshold value is reached in the air inlet cavity, the one-way pressure valve arranged in the safety pipeline is opened, oil mist in the air inlet cavity enters the side end of the bottom of the filter cylinder through the safety pipeline, the half cone hoppers distributed on the inner walls of the two sides of the filter cylinder in a staggered mode form a zigzag labyrinth channel, the oil mist flowing resistance is increased, and meanwhile the oil mist flowing speed is increased. When the oil mist flows in the labyrinth channel, the oil mist continuously collides and touches the lower surface of the semi-cone hopper, so that fine oil liquid in gas is adsorbed on the lower surface of the semi-cone hopper and flows back into the backflow main pipe communicated with the bottom of the oil mist separation tank through the backflow branch pipe under the action of gravity, separation and recovery of oil drops in the oil mist are realized, and the applicability is higher.

Description

Technical Field

[0001] The invention relates to the technical field of oil mist separation and recovery, in particular to a high-efficiency oil mist separation device for heat pump distillation. Background Art

[0002] With the rapid development of domestic heat pump distillation technology, the use of heat pump compressors is also increasing. Heat pump compressors are key core equipment in the distillation system, and the reliability, safety and low failure rate of the compressor are required to be very high. Heat pump compressors generally use sliding bearings, and use thin oil stations to force lubrication and oil supply to the bearings. However, due to the high temperature of the return oil in the thin oil station, the pressure and temperature in the oil tank are higher than the atmosphere, so there is heat release and pressure release from the inside of the oil tank to the outside world. If this part of the heat and pressure is not drained and processed, the speed increaser oil seal will leak, resulting in a large amount of oil mist and oil droplets on the compressor equipment. The oil mist separation device is an oil mist separation and recovery equipment installed on various machining equipment such as CNC machining centers, cleaning machines, die-casting machines, CNC lathes, etc., which absorbs the oil mist in the machining cavity or oil tank to purify the air and protect the health of workers.

[0003] Although ordinary oil mist treatment devices can separate oil mist, the separation efficiency is only 90%. When the fan fails, the oil mist cannot pass through the filter element due to the large resistance of the filter element, and is often directly discharged into the air, polluting the surrounding environment, posing health hazards to operators, affecting the safe operation of equipment, and bringing operational risks to the enterprise. In addition, the separation filter element in the prior art is prone to gradually block the filtration channel during long-term use due to impurities contained in the oil droplets, and the prior art lacks a corresponding self-cleaning structure, which results in the problem of a gradual decrease in the filtration effect of the separation filter element during long-term use.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a high-efficiency oil mist separation device for heat pump distillation is proposed. Summary of the invention

[0005] The object of the present invention is to provide a high-efficiency oil mist separation device for heat pump distillation to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency oil mist separation device for heat pump distillation, comprising an oil mist separation tank and a self-cleaning component, the self-cleaning component is fixedly installed on the top of the oil mist separation tank, the self-cleaning component comprises an end cover, a fan housing, a partition, a side flow channel, a bearing seat, an impeller, a motor, a magnetic coil and a controller, the end cover is bolted to the top of the oil mist separation tank, and the fan housing is bolted to the middle end of the top of the end cover, a partition with an annular structure is fixed to the middle end of the fan housing, and a side flow channel is provided on the outside of the partition, a bearing seat is fixed to the inner end of the partition, and an impeller is rotatably installed inside the bearing seat, the impeller is fixedly connected to the output end of the motor, and a magnetic coil is provided in the recess gap on the inner side of the impeller, the magnetic coil is externally connected to the controller, and the diameter of the through hole in the middle of the magnetic coil is larger than the diameter of the motor output shaft, and the end of the magnetic coil is fixed to the fan housing.

[0007] Furthermore, a partition is fixed at the bottom end of the oil mist separation tank, and an air intake cavity is arranged below the partition. A reflux main pipe connected to the air intake cavity is fixed at the bottom end of the oil mist separation tank, and the end of the reflux main pipe is fixed to the oil tank through a connecting flange, and an impurity filter is built into the connecting flange.

[0008] Furthermore, a coalescing filter element is fixedly installed on the top of the through hole in the middle of the partition, and the internal cavity of the coalescing filter element is connected to the air inlet cavity below the partition.

[0009] Furthermore, a rotating disk is rotatably mounted on the top of the coalescing filter opening via a sealed bearing, and an inner wall scraper is coaxially connected to the bottom of the rotating disk, and the inner wall scraper is tightly fitted to the inner wall of the coalescing filter.

[0010] Furthermore, a leaf spring is fixedly connected to the top disk surface of the rotating disk, and one end of the leaf spring facing away from the rotating disk is elastically connected to the floating disk, and the floating disk is frictionally driven with the impeller under the magnetic attraction after the magnetic coil is energized.

[0011] Furthermore, a primary filter cavity is provided in the outer gap between the coalescing filter element and the oil mist separation tank, and the side wall of the primary filter cavity is connected to the air inlet end of the side flow channel through an air intake pipe.

[0012] Furthermore, a cyclone separator is fixedly mounted on the side of the end cover, and a spiral inlet pipe is fixed on the top of the cone of the cyclone separator, and the spiral inlet pipe is connected to the air outlet end of the side flow channel through the exhaust pipe.

[0013] Furthermore, a secondary filter chamber is provided inside the cone of the cyclone separator, and an overflow pipe is vertically connected to the middle end of the secondary filter chamber, and the overflow pipe is externally connected to a bent air outlet.

[0014] Furthermore, a pressure relief protection component is connected to the bottom of the cyclone separator, and the pressure relief protection component includes a filter cartridge, an intercepting filter screen and a semi-conical bucket. The filter cartridge is connected to the bottom end of the secondary filter chamber in the cyclone separator through the intercepting filter screen, and semi-conical buckets with upward notches are staggered on the inner walls on both sides of the filter cartridge.

[0015] Furthermore, the pressure relief protection assembly also includes a safety pipeline and a reflux branch pipe. The safety pipeline at the bottom side end of the filter cartridge is connected to the side end of the air inlet chamber through a one-way pressure valve, and the reflux branch pipe at the middle end of the bottom of the filter cartridge is connected to the side wall of the reflux main pipe through a stop valve.

[0016] The present invention provides a high-efficiency oil mist separation device for heat pump distillation, which has the following beneficial effects:

[0017] 1. During the use of the present invention, when the fan stops due to a fault, the one-way pressure valve built into the safety pipeline opens after the pressure threshold is reached in the air intake chamber, and the oil mist in the air intake chamber enters the bottom side end of the filter cartridge through the safety pipeline. The semi-conical buckets staggered on the inner walls of both sides of the filter cartridge form a zigzag maze channel, which increases the flow resistance of the oil mist. When the oil mist flows inside the maze channel, it will continuously collide and touch the lower surface of the semi-conical bucket, thereby adsorbing the fine oil in the gas on the lower surface of the semi-conical bucket, and refluxes to the reflux main pipe connected to the bottom of the oil mist separation tank through the reflux branch pipe under the action of gravity, thereby realizing the separation and recovery of oil droplets in the oil mist;

[0018] 2. During the use of the present invention, in normal use, the oil mist passes through the coalescing filter element from the inside to the outside, and most of the oil droplets in the oil mist are intercepted and retained on the inner side of the coalescing filter element. Under the action of gravity, the oil mist is returned to the oil tank through the return main pipe, and the oil mist after the first separation is sucked into the side flow channel outside the fan housing, and further introduced into the top spiral inlet pipe of the cyclone separator through the exhaust pipe connected to the air outlet end of the side flow channel. The gas and oil droplets in the oil mist are further separated by the principle of rotating airflow. The present application further improves the separation effect of the oil mist on the basis of the existing technology through two filtering processes consisting of interception filtration of the coalescing filter element and cyclone separation of the cyclone separator, and has stronger applicability;

[0019] 3. During the use of the present invention, the present application uses a differential pressure sensor to sense the internal and external pressure difference of the coalescing filter element. When the coalescing filter element is clogged with impurities and the filtering effect is affected, the controller energizes the magnetic coil to generate magnetism. The magnetic coil further attracts the floating disk through magnetic attraction, so that the floating disk overcomes the elastic force of the leaf spring and performs friction transmission with the impeller. The floating disk is further rotated to the rotating disk located at the top opening of the coalescing filter element through the leaf spring, so that the rotating disk drives the inner wall scraper coaxial at the bottom to scrape and clean the inner wall of the coalescing filter element. During the above-mentioned self-cleaning process, the oil mist separation tank does not need to be shut down, that is, the self-cleaning operation can be carried out simultaneously with the oil mist separation operation without interfering with each other. The continuous service life of the coalescing filter element is extended by the self-cleaning operation of the inner filter surface of the coalescing filter element, thereby ensuring the oil mist separation effect of the coalescing filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall external state of the device of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall internal state of the device of the present invention;

[0022] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the device of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the self-cleaning component of the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of the device of the present invention;

[0025] Figure 6 It is a schematic cross-sectional structure diagram of a cyclone separator of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the pressure relief protection component of the present invention.

[0027] In the figure: 1, oil mist separation tank; 2, self-cleaning component; 201, end cover; 202, fan housing; 203, partition; 204, side channel; 205, bearing seat; 206, impeller; 207, motor; 208, magnetic coil; 209, controller; 3, partition; 4, air inlet cavity; 5, return main pipe; 6, connecting flange; 7, impurity filter; 8, coalescing filter element; 9, rotating disk; 10, inner wall Scraper; 11. Leaf spring; 12. Floating plate; 13. Primary filter chamber; 14. Intake pipe; 15. Cyclone separator; 16. Spiral inlet pipe; 17. Exhaust pipe; 18. Secondary filter chamber; 19. Overflow pipe; 20. Bend outlet; 21. Pressure relief protection assembly; 2101. Filter cartridge; 2102. Intercepting filter; 2103. Semi-conical bucket; 2104. Safety pipeline; 2105. Reflux branch pipe. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0029] See also Figures 1 to 5 The present invention provides a technical solution: a high-efficiency oil mist separation device for heat pump distillation, comprising an oil mist separation tank 1 and a self-cleaning component 2, the self-cleaning component 2 is fixedly installed on the top of the oil mist separation tank 1, the self-cleaning component 2 comprises an end cover 201, a fan housing 202, a partition 203, a side flow channel 204, a bearing seat 205, an impeller 206, a motor 207, a magnetic coil 208 and a controller 209, the end cover 201 is bolted to the top of the oil mist separation tank 1, and the fan housing 202 is bolted to the middle end of the top of the end cover 201, and the fan housing 202 is bolted to the middle end of the top of the end cover 201. A partition 203 of an annular structure is fixed at the middle end of the interior, and a side flow channel 204 is provided on the outside of the partition 203, a bearing seat 205 is fixed at the inner end of the partition 203, and an impeller 206 is rotatably installed inside the bearing seat 205, the impeller 206 is fixedly connected to the output end of the motor 207, and a magnetic coil 208 is provided in the recess gap inside the impeller 206, the magnetic coil 208 is externally connected to a controller 209, and the diameter of the through hole in the middle of the magnetic coil 208 is larger than the diameter of the output shaft of the motor 207, and the end of the magnetic coil 208 is fixed to the fan housing 202;

[0030] The specific operation is as follows: the oil mist entering the air inlet chamber 4 below the partition 3 from the oil tank cannot pass through the coalescing filter element 8 due to the relatively large resistance of the coalescing filter element 8. As the oil mist continues to increase, the pressure in the air inlet chamber 4 will increase. After reaching the threshold, the one-way pressure valve built into the safety line 2104 opens, and the oil mist in the air inlet chamber 4 enters the bottom side end of the filter cartridge 2101 through the safety line 2104. The semi-conical buckets 2103 staggered on the inner walls of both sides of the filter cartridge 2101 form a zigzag maze channel, which increases the flow resistance of the oil mist. At the same time, the oil mist will continuously collide and touch the semi-conical buckets when flowing inside the maze channel. 2103, so that the fine oil in the gas is adsorbed on the lower surface of the semi-conical bucket 2103, and under the action of gravity, it flows back to the return main pipe 5 connected to the bottom of the oil mist separation tank 1 through the return branch pipe 2105, so as to achieve the separation and recovery of oil droplets in the oil mist, and the gas separated from the oil mist enters the secondary filter chamber 18 inside the cyclone separator 15 through the interception filter 2102, and is further discharged to the external environment through the bent air outlet 20 connected to the top of the overflow pipe 19, which effectively solves the problem of environmental pollution caused by direct discharge of oil mist when the fan fails to stop in the prior art;

[0031] See also Figures 3 to 5A partition 3 is fixed at the bottom end of the oil mist separation tank 1, and an air inlet cavity 4 is arranged below the partition 3. A reflux main pipe 5 connected to the air inlet cavity 4 is fixed at the bottom end of the oil mist separation tank 1, and the end of the reflux main pipe 5 is fixed to the oil tank through a connecting flange 6, and an impurity filter screen 7 is built into the connecting flange 6. A coalescing filter element 8 is fixedly installed on the top of the through hole in the middle of the partition 3, and the internal cavity of the coalescing filter element 8 is connected to the air inlet cavity 4 below the partition 3. A rotating disk 9 is rotatably installed on the top of the opening of the coalescing filter element 8 through a sealed bearing, and the bottom of the rotating disk 9 An inner wall scraper 10 is coaxially connected, and the inner wall scraper 10 is tightly fitted with the inner wall of the coalescing filter element 8. A leaf spring 11 is fixedly connected to the top disk surface of the rotating disk 9, and the leaf spring 11 is elastically connected to the floating disk 12 at one end away from the rotating disk 9, and the floating disk 12 is frictionally driven with the impeller 206 under the magnetic attraction of the magnetic coil 208 after power is turned on. A primary filter chamber 13 is provided in the outer gap between the coalescing filter element 8 and the oil mist separation tank 1, and the side wall of the primary filter chamber 13 is connected to the air inlet end of the side flow channel 204 through the suction pipe 14;

[0032] The specific operation is as follows: the motor 207 drives the impeller 206 to rotate, so that the air inlet end of the side flow channel 204 sucks the gas in the primary filter chamber 13 through the suction pipe 14 and generates negative pressure inside the oil mist separation tank 1. The oil mist in the oil tank is sucked into the air inlet chamber 4 below the partition 3 through the reflux main pipe 5 under the suction of negative pressure, and further enters the interior of the coalescing filter element 8 through the hole in the middle of the partition 3. The oil mist passes through the coalescing filter element 8 from the inside to the outside, and most of the oil droplets in the oil mist are intercepted and retained on the inner side of the coalescing filter element 8. Under the action of gravity, it flows back to the oil tank through the reflux main pipe 5. The impurity filter 7 arranged in the connecting flange 6 at the end of the reflux main pipe 5 is used to filter the oil returned to the oil tank, and the oil mist after the first separation is sucked into the side flow channel 204 outside the fan housing 202, and further passes through the exhaust pipe 1 connected to the air outlet end of the side flow channel 204. 7 is tangentially introduced into the top spiral inlet pipe 16 of the cyclone separator 15, and the gas and oil droplets in the oil mist are further separated by the principle of rotating air flow. The gas separated from the oil mist is discharged by the bent air outlet 20 connected to the top of the overflow pipe 19, and the oil droplets separated for the second time are attached to the inner wall of the cone of the secondary filter chamber 18, and are passed into the filter cartridge 2101 connected to the bottom of the cyclone separator 15 under the action of gravity. The semi-conical buckets 2103 staggered up and down in the filter cartridge 2101 will not affect the gravity flow of the oil droplets because the notches are facing upwards, and are merged into the reflux main pipe 5 connected to the bottom of the oil mist separation tank 1 through the reflux branch pipe 2105, and refluxed to the inside of the oil tank together. The present application further improves the separation effect of the oil mist on the basis of the existing technology through two filtering processes consisting of interception filtration of the coalescing filter element 8 and cyclone separation of the cyclone separator 15, and has stronger applicability;

[0033] See also Figure 6 to Figure 7A cyclone separator 15 is fixedly mounted on the side of the end cover 201, and a spiral inlet pipe 16 is fixed on the top of the cone of the cyclone separator 15, and the spiral inlet pipe 16 is connected to the outlet end of the side flow channel 204 through the exhaust pipe 17. A secondary filter chamber 18 is arranged inside the cone of the cyclone separator 15, and an overflow pipe 19 is vertically connected to the middle end of the secondary filter chamber 18, and the overflow pipe 19 is externally connected to a bent air outlet 20. The bottom of the cyclone separator 15 is connected to a pressure relief protection component 21, and the pressure relief protection component 21 includes a filter cartridge 2101, an interception filter 21 02 and a semi-conical bucket 2103, the filter cartridge 2101 is connected to the bottom end of the secondary filter chamber 18 in the cyclone separator 15 through the intercepting filter screen 2102, and the inner walls on both sides of the filter cartridge 2101 are staggered with semi-conical buckets 2103 with notches facing upwards, the pressure relief protection component 21 also includes a safety pipeline 2104 and a reflux branch pipe 2105, the safety pipeline 2104 at the bottom side end of the filter cartridge 2101 is connected to the side end of the air inlet chamber 4 through a one-way pressure valve, and the reflux branch pipe 2105 at the middle end of the bottom of the filter cartridge 2101 is connected to the side wall of the reflux main pipe 5 through a stop valve;

[0034] The specific operation is as follows. During long-term use, impurities contained in the oil mist may cause the filtering channel of the coalescing filter element 8 to be blocked. The present application uses a differential pressure sensor to sense the internal and external pressure difference of the coalescing filter element 8. When the coalescing filter element 8 is blocked by impurities and the filtering effect is affected, the controller 209 energizes the magnetic coil 208 to generate magnetism. Further, the magnetic coil 208 attracts the floating disk 12 magnetically, so that the floating disk 12 overcomes the elastic force of the leaf spring 11 and performs friction transmission with the impeller 206. Further, the floating disk 12 is rotated to the rotating disk 9 located at the top opening of the coalescing filter element 8 through the leaf spring 11, so that the rotating disk 9 drives the inner wall scraper 10 coaxial at the bottom to scrape and clean the inner wall of the coalescing filter element 8. During the above self-cleaning process, the oil mist separation tank 1 does not need to be shut down, that is, the self-cleaning operation can be carried out simultaneously with the oil mist separation operation without interfering with each other. The continuous service life of the coalescing filter element 8 is extended by the self-cleaning operation of the inner filter surface of the coalescing filter element 8, and the oil mist separation effect of the coalescing filter element 8 is guaranteed.

[0035] It is worth noting that the material of the coalescing filter element 8 used in the present application is surface-treated glass fiber or polyester fiber. Through the specially designed structure, a tortuous channel is formed for the airflow, forcing the liquid droplets to be captured by the ultrafine fibers under the action of the three filtration mechanisms of inertial collision, diffusion interception and direct interception. The surface tension of the liquid causes the small droplets to coalesce into larger droplets. Due to the action of gravity, the large droplets settle to the bottom of the coalescing filter element 8, thereby achieving a filtering effect.

[0036] In summary, when the high-efficiency oil mist separation device for heat pump distillation is used, during normal use, the motor 207 drives the impeller 206 to rotate, so that the air inlet end of the side flow channel 204 sucks the gas in the primary filter chamber 13 through the suction pipe 14 and generates negative pressure inside the oil mist separation tank 1. The oil mist in the oil tank is sucked into the air inlet chamber 4 below the partition 3 through the reflux main pipe 5 under the suction of negative pressure, and further enters the interior of the coalescing filter element 8 through the hole in the middle of the partition 3. The oil mist passes through the coalescing filter element 8 from the inside to the outside, and most of the oil droplets in the oil mist are intercepted and retained on the inner side of the coalescing filter element 8. Under the action of gravity, it flows back to the oil tank through the reflux main pipe 5. The impurity filter 7 arranged in the connecting flange 6 at the end of the reflux main pipe 5 is used to filter the oil returned to the oil tank, and the once The separated oil mist is sucked into the side channel 204 outside the fan housing 202, and is further introduced into the top spiral inlet pipe 16 of the cyclone separator 15 through the exhaust pipe 17 connected to the air outlet end of the side channel 204. The gas and oil droplets in the oil mist are further separated by the principle of rotating airflow. The gas separated from the oil mist is discharged through the bent air outlet 20 connected to the top of the overflow pipe 19, and the oil droplets separated for the second time adhere to the inner wall of the cone of the secondary filter chamber 18, and are passed into the filter cartridge 2101 connected to the bottom of the cyclone separator 15 under the action of gravity. The semi-conical buckets 2103 staggered up and down in the filter cartridge 2101 will not affect the gravity flow of the oil droplets because the notches are facing upwards, and are merged into the reflux main pipe connected to the bottom of the oil mist separation tank 1 through the reflux branch pipe 2105. 5, and flows back to the inside of the oil tank. The present application further improves the separation effect of oil mist on the basis of the existing technology through two filtering processes consisting of interception filtration of the coalescing filter element 8 and cyclone separation of the cyclone separator 15, and has stronger applicability. When the fan stops due to a fault, the oil mist that enters the air inlet chamber 4 below the partition 3 from the oil tank cannot pass through the coalescing filter element 8 due to the relatively large resistance of the coalescing filter element 8. As the oil mist continues to increase, the pressure in the air inlet chamber 4 increases. After reaching the threshold, the one-way pressure valve built into the safety pipeline 2104 opens, and the oil mist in the air inlet chamber 4 enters the bottom side end of the filter cartridge 2101 through the safety pipeline 2104. The semi-conical buckets 2103 staggered on the inner walls on both sides of the filter cartridge 2101 form a zigzag maze channel. , while increasing the flow resistance of the oil mist, the oil mist will continuously collide and touch the lower surface of the semi-conical bucket 2103 when flowing inside the maze channel, thereby adsorbing the fine oil in the gas on the lower surface of the semi-conical bucket 2103, and under the action of gravity, it will flow back to the reflux main pipe 5 connected to the bottom of the oil mist separation tank 1 through the reflux branch pipe 2105, thereby realizing the separation and recovery of oil droplets in the oil mist, and the gas separated from the oil mist enters the secondary filter chamber 18 inside the cyclone separator 15 through the interception filter 2102, and is further discharged to the external environment through the bent air outlet 20 connected to the top of the overflow pipe 19, effectively solving the problem of environmental pollution caused by direct discharge of oil mist when the fan fails to stop in the prior art. In the long-term use process,Impurities contained in the oil mist may cause the filtering channel of the coalescing filter element 8 to be blocked. The present application uses a differential pressure sensor to sense the internal and external pressure difference of the coalescing filter element 8. When the coalescing filter element 8 is blocked by impurities and the filtering effect is affected, the controller 209 energizes the magnetic coil 208 to generate magnetism. The magnetic coil 208 further attracts the floating disk 12 by magnetic attraction, so that the floating disk 12 overcomes the elastic force of the leaf spring 11 and performs friction transmission with the impeller 206. The floating disk 12 is further rotated by the leaf spring 11 to the rotating disk 9 located at the top opening of the coalescing filter element 8, so that the rotating disk 9 drives the inner wall scraper 10 coaxial at the bottom to scrape and clean the inner wall of the coalescing filter element 8. During the above self-cleaning process, the oil mist separation tank 1 does not need to be shut down, that is, the self-cleaning operation can be carried out simultaneously with the oil mist separation operation without interfering with each other. The continuous service life of the coalescing filter element 8 is extended by the self-cleaning operation of the inner filter surface of the coalescing filter element 8, and the oil mist separation effect of the coalescing filter element 8 is guaranteed.

[0037] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A high-efficiency oil mist separation device for heat pump distillation, characterized in that: The invention comprises an oil mist separation tank (1) and a self-cleaning component (2), wherein the self-cleaning component (2) is fixedly installed on the top of the oil mist separation tank (1), and the self-cleaning component (2) comprises an end cover (201), a fan housing (202), a partition (203), a side flow channel (204), a bearing seat (205), an impeller (206), a motor (207), a magnetic coil (208) and a controller (209), wherein the end cover (201) is bolted to the top of the oil mist separation tank (1), and the fan housing (202) is bolted to the middle end of the top of the end cover (201), and a ring-shaped structure is fixed to the middle end of the fan housing (202). A partition (203) is provided, and a side flow channel (204) is provided on the outside of the partition (203); a bearing seat (205) is fixed to the inner end of the partition (203), and an impeller (206) is rotatably installed inside the bearing seat (205); the impeller (206) is fixedly connected to the output end of the motor (207), and a magnetic coil (208) is provided in the recess gap on the inner side of the impeller (206); the magnetic coil (208) is externally connected to a controller (209), and the diameter of the through hole in the middle of the magnetic coil (208) is larger than the diameter of the output shaft of the motor (207), and the end of the magnetic coil (208) is fixed to the fan housing (202).

2. A high-efficiency oil mist separation device for heat pump distillation according to claim 1, characterized in that: A partition (3) is fixed at the bottom end of the oil mist separation tank (1), and an air intake chamber (4) is arranged below the partition (3). A return main pipe (5) connected to the air intake chamber (4) is fixed at the bottom end of the oil mist separation tank (1), and the end of the return main pipe (5) is fixed to the oil tank via a connecting flange (6), and an impurity filter (7) is built into the connecting flange (6).

3. A high-efficiency oil mist separation device for heat pump distillation according to claim 2, characterized in that: A coalescing filter element (8) is fixedly mounted on the top of the through hole in the middle of the partition (3), and the internal cavity of the coalescing filter element (8) is connected to the air inlet cavity (4) below the partition (3).

4. A high-efficiency oil mist separation device for heat pump distillation according to claim 3, characterized in that: A rotating disk (9) is rotatably mounted on the top of the opening of the coalescing filter element (8) via a sealed bearing, and an inner wall scraper (10) is coaxially connected to the bottom of the rotating disk (9), and the inner wall scraper (10) is tightly fitted to the inner wall of the coalescing filter element (8).

5. A high-efficiency oil mist separation device for heat pump distillation according to claim 4, characterized in that: The top disk surface of the rotating disk (9) is fixedly connected to a leaf spring (11), and one end of the leaf spring (11) facing away from the rotating disk (9) is elastically connected to a floating disk (12), and the floating disk (12) is frictionally driven with the impeller (206) under the magnetic attraction after the magnetic coil (208) is energized.

6. A high-efficiency oil mist separation device for heat pump distillation according to claim 5, characterized in that: A primary filter chamber (13) is provided in the outer gap between the coalescing filter element (8) and the oil mist separation tank (1), and the side wall of the primary filter chamber (13) is connected to the air inlet end of the side flow channel (204) through an air intake pipe (14).

7. The high-efficiency oil mist separation device for heat pump distillation according to claim 1, characterized in that: A cyclone separator (15) is fixedly mounted on the side of the end cover (201), and a spiral inlet pipe (16) is fixed to the top of the cone of the cyclone separator (15), and the spiral inlet pipe (16) is connected to the air outlet end of the side flow channel (204) through an exhaust pipe (17).

8. The high-efficiency oil mist separation device for heat pump distillation according to claim 7, characterized in that: A secondary filter chamber (18) is arranged inside the cone of the cyclone separator (15), and an overflow pipe (19) is vertically connected to the middle end of the secondary filter chamber (18), and the overflow pipe (19) is externally connected to a bent air outlet (20).

9. The high-efficiency oil mist separation device for heat pump distillation according to claim 8, characterized in that: The bottom of the cyclone separator (15) is connected to a pressure relief protection component (21), and the pressure relief protection component (21) comprises a filter cartridge (2101), an intercepting filter screen (2102) and a semi-conical bucket (2103). The filter cartridge (2101) is connected to the bottom end of the secondary filter chamber (18) in the cyclone separator (15) through the intercepting filter screen (2102), and semi-conical buckets (2103) with notches facing upwards are staggeredly distributed on the inner walls of both sides of the filter cartridge (2101).

10. The high-efficiency oil mist separation device for heat pump distillation according to claim 9, characterized in that: The pressure relief protection assembly (21) further comprises a safety pipeline (2104) and a reflux branch pipe (2105); the safety pipeline (2104) at the bottom side end of the filter cartridge (2101) is connected to the side end of the air inlet chamber (4) via a one-way pressure valve, and the reflux branch pipe (2105) at the middle bottom end of the filter cartridge (2101) is connected to the side wall of the reflux main pipe (5) via a stop valve.

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