An oil fume and oil mist purification device

Abstract

The present application relates to the technical field of oil fume purification, and discloses an oil fume and oil mist purification device, which comprises a device shell, the device shell is provided with a front panel, the inside of the device shell is provided with an oil mist particle separation assembly, a filtering assembly and a purification assembly, the oil mist particle separation assembly comprises a back plate and a partition plate which are fixed to the inside of the device shell, a guide belt is transmissionally installed outside the partition plate, a plurality of groups of flow baffles are uniformly arranged on the surface of the guide belt, and the flow baffles are used for inertial separation of oil mist particles in oil fume; the oil mist particle separation assembly is arranged, a plurality of obliquely staggered flow baffles are arranged to realize inertial separation of oil fume, a continuously transmission guide belt is arranged, the flow baffles are continuously transmissionally driven by the guide belt, the contact frequency of oil fume, oil mist and the flow baffles is increased, and more oil droplets can be discharged in the limited flow channel.

Description

Technical Field

[0001] The present invention relates to the technical field of oil fume purification, in particular to oil fume and oil mist purification equipment. Background Art

[0002] Oil smoke and oil mist refer to the large amount of thermal oxidation decomposition products produced by oil products under high temperature conditions. They are common in kitchens and bathrooms. Usually, they need to be collected, purified and discharged through range hoods.

[0003] At present, traditional range hoods are only discharged to the outside through pipes after simple purification. The purification effect is poor, not only causing serious pollution, but also a large amount of oil smoke will enter the impeller and solidify and accumulate on the blades of the impeller, making the impeller mass larger and causing a burden on the motor. Over time, it will not only affect the effect of extracting oil smoke but also cause damage to the equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide an oil fume and oil mist purification device, aiming to solve the problem that the existing range hoods have poor purification effects on oil fume and oil mist.

[0005] The present invention is achieved by providing an oil fume and oil mist purification device, comprising an equipment housing, the equipment housing cover being provided with a front panel, the interior of the equipment housing being provided with an oil mist particle separation assembly, a filter assembly, and a purification assembly, the oil mist particle separation assembly comprising a back plate and a partition fixed to the interior of the equipment housing, a guide belt being externally driven and mounted on the exterior of the partition, the surface of the guide belt being provided with a plurality of baffles evenly distributed thereon, the baffles being used to inertially separate oil mist particles from the oil fume;

[0006] The oil mist particle separation assembly further includes a cleaning chamber and a partition chamber installed on both sides of the device housing, the cleaning chamber and the partition chamber respectively wrapped around the ends of the guide belt, the inner wall of the partition chamber is glued with a wind shield, a heating pump is installed on the cleaning chamber, and nozzles connected to the liquid outlet of the heating pump are evenly distributed in the cleaning chamber, and the nozzles are used to clean the mist particles deposited on the surface of the baffle;

[0007] It also includes a sewage discharge plate arranged below the equipment shell, a baffle is arranged between the sewage discharge plate and the back plate, and a sewage outlet, a water injection port and a drainage port are respectively arranged below the end of the sewage discharge plate.

[0008] Preferably, the filter assembly includes a first connecting ring and a second connecting ring, a rotating drum is connected to the first connecting ring and the second connecting ring by a bearing, the rotating drum includes two groups of inner drums, and the first connecting ring and the second connecting ring are respectively provided with two ports connected to the inner drums.

[0009] Preferably, the device further comprises a wind turbine whose air inlet end is connected to one of the ports of the first connecting ring, a recoil pump is installed at the air outlet end of the wind turbine, the liquid inlet end of the recoil pump is connected to the water injection port via a pipeline, and the liquid outlet end of the recoil pump is connected to the other port of the first connecting ring;

[0010] One port of the second connecting ring is connected to an air hood that passes through and extends to the other side of the back plate, and the other port of the second connecting ring is connected to a three-way valve, which is connected to the drain pipe through the three-way valve, and is also connected to the purification component through an air outlet pipe. Air outlets are also provided at the corresponding positions of the equipment housing and the air outlet end of the purification component.

[0011] Preferably, the interiors of the two inner cylinders are filled with a glass fiber layer, a cooling layer, an air primary filter layer, a HEPA filter layer and a ceramic filter element layer in sequence.

[0012] Preferably, a switching motor is installed on one side of the first connecting ring, the output shaft of the switching motor is sleeved with a gear, and a tooth groove meshing with the gear is provided on the outer side of the end of the rotating drum.

[0013] Preferably, the sewage discharge plate is divided into a sewage area and an oil area by the baffle, the sewage discharge plate is located below the oil area and an oil bottle is installed, and the sewage outlet passes through and extends into the sewage area of ​​the sewage discharge plate.

[0014] Preferably, the upper and lower parts of the back plate are provided with inclined parts, the upper and lower parts of the partition are in contact with the inclined parts of the back plate, and the inner sides of both ends of the partition are installed with sinking shafts passing through the inclined parts of the back plate, and the guide belt is sleeved on the outside of the sinking shaft.

[0015] Preferably, a driving motor is installed on the top of the back plate, two limiting plates are provided on the upper end of the sinking shaft, and the two sinking shafts are located between the two limiting plates and are sleeved with a transmission ring, and the output shaft of the driving motor is connected to the two transmission rings through a belt drive;

[0016] The surface of the sunken shaft located between the two limiting pieces is provided with ribs, and the inner wall of the transmission ring is provided with rib grooves corresponding to the ribs;

[0017] A return spring is provided between the limiting piece located at the bottom and the upper portion of the bent portion of the back plate, and the return spring is sleeved on the outside of the sinking shaft.

[0018] Preferably, a U-shaped switch rod is connected to the bearing at the lower end of one of the sinking shafts, and the switch rod interferes with the switch of the heating pump.

[0019] Preferably, each group of baffles comprises two rows, and the baffles between the two rows are arranged obliquely and staggered, with the upper end of the baffles in the first row being lower than the upper end of the baffles in the second row.

[0020] The invention discloses an oil fume and oil mist purification device, which has the following beneficial effects:

[0021] 1. This application provides an oil mist particle separation assembly and utilizes a plurality of obliquely and staggered baffles to achieve inertial separation of oil smoke. Furthermore, a continuously driven guide belt is provided to drive the baffles to continuously drive, thereby increasing the number of times the oil smoke and oil mist come into contact with the baffles, thereby enabling more oil droplets to be discharged within a limited flow channel.

[0022] 2. After the baffle has been used for a long time, the oil droplets attached to the surface of the baffle solidify and increase the weight of the conveyor belt, causing the sinking shafts on both sides of the conveyor belt to sink. During the sinking process, the switch of the heating pump is triggered by the switch rod, so that hot water is pumped in and the baffle is flushed with the nozzle, softening the solidified grease and flushing it into the oil area of ​​the drain plate. No manual cleaning is required, and the heating pump can be automatically shut down after cleaning, which greatly saves cleaning water.

[0023] 3. The present application sets up a reciprocating rotating drum and sets up two groups of inner drums in the rotating drum. The inner drums rotate alternately so that when the filter layer in one group of inner drums filters the oil smoke and oil mist, the filter layer in the other group of inner drums can be backwashed. There is no need for manual cleaning of the filter components, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of an oil fume and oil mist purification device provided by an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of an oil fume and oil mist purification device in an open state according to an embodiment of the present invention;

[0026] Figure 3 This is a fume and oil mist purification device provided by the embodiment of the present invention Figure 2 Schematic diagram of the internal structure;

[0027] Figure 4 This is a schematic structural diagram of an oil mist particle separation component of an oil fume and oil mist purification device provided by an embodiment of the present invention;

[0028] Figure 5 This is a fume and oil mist purification device provided by the embodiment of the present invention Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0029] Figure 6 This is a schematic structural diagram of a filter assembly for oil fume and oil mist purification equipment provided by an embodiment of the present invention;

[0030] Figure 7 The present invention provides a schematic diagram of the cross-sectional structure of a rotary drum of an oil fume and oil mist purification device.

[0031] Marking Description:

[0032] 1. Equipment housing; 2. Blowdown plate; 3. Oil mist particle separation component; 4. Filter component; 5. Purification component;

[0033] 11. Air outlet; 12. Front panel;

[0034] 21. Baffle; 22. Oil bottle; 23. Sewage outlet;

[0035] 31. Cleaning chamber; 32. Partition chamber; 33. Partition plate; 34. Sinking shaft; 35. Guide belt; 36. Baffle plate; 37. Drive motor; 38. Back plate;

[0036] 311, nozzle; 312, heating pump; 313, water inlet;

[0037] 321, windshield;

[0038] 431, switch motor;

[0039] 341. Limiting piece; 342. Rib; 343. Return spring; 344. Transmission ring; 345. Switch lever;

[0040] 41. Wind turbine; 42. Backwash pump; 43. First connecting ring; 44. Rotating drum; 45. Second connecting ring; 46. Induced draft hood; 47. Three-way valve;

[0041] 441. Inner tube; 471. Air outlet; 472. Drain outlet. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0045] In this embodiment:

[0046] Reference Figure 1-3 As shown, a preferred embodiment of the present invention is provided.

[0047] The oil fume and oil mist purification device of this embodiment includes a device housing 1, which is covered with a front panel 12. The interior of the device housing 1 is provided with an oil mist particle separation component 3, a filter component 4, and a purification component 5. The oil mist particle separation component 3 includes a back plate 38 and a partition 33 fixed to the interior of the device housing 1. A guide belt 35 is installed on the outer drive of the partition 33. The surface of the guide belt 35 is evenly distributed with a plurality of baffles 36. The baffles 36 are used to inertially separate oil mist particles from the oil fume.

[0048] The oil mist particle separation component 3 also includes a cleaning chamber 31 and a partition chamber 32 installed on both sides of the device housing 1. The cleaning chamber 31 and the partition chamber 32 are respectively wrapped around the ends of the guide belt 35. The inner wall of the partition chamber 32 is glued with a windshield 321. The setting of the windshield 321 can ensure that the baffle 36 can pass through the windshield 321, but the oil smoke airflow can be largely blocked. A heating pump 312 is installed on the cleaning chamber 31. Nozzles 311 connected to the liquid outlet of the heating pump 312 are evenly distributed in the cleaning chamber 31. The nozzles 311 are used to clean the mist particles deposited on the surface of the baffle 36;

[0049] It also includes a sewage plate 2 arranged below the equipment housing 1, a baffle 21 is provided between the sewage plate 2 and the back plate 38, and a sewage outlet 23, a water injection port 313 and a drain port 472 are respectively provided below the end of the sewage plate 2. The sewage outlet 23 and the drain port 472 can be connected to the drainage channel pipeline for discharging sewage discharged by the purification equipment. The water injection port 313 is connected to the faucet through a pipeline for injecting backwash liquid and cooling water into the purification equipment.

[0050] In the attached Figure 1 In the embodiment, the drain plate 2 is divided into a sewage area and an oil area by the baffle 21. An oil bottle 22 is installed below the oil area on the drain plate 2, and the sewage outlet 23 penetrates and extends into the sewage area of ​​the drain plate 2. The oil area is used to receive the oil mist blocking the oil mist particle separation component 3 and introduce it into the oil bottle 22 for collection. The sewage area is used to receive the sewage generated by flushing the baffle 36 in the cleaning chamber 31 and discharge the sewage out of the equipment through the sewage outlet 23.

[0051] It is worth noting that the cleaning function of the cleaning chamber 31 on the baffle 36 (ie, the heating pump 312) occurs after the equipment stops extracting oil fumes, and does not affect the normal inertial separation of oil mist particles of the equipment.

[0052] Refer to the attached Figure 4-5As shown, the upper and lower parts of the back plate 38 are both provided with inclined parts, and the upper and lower parts of the partition 33 are in conflict with the inclined parts of the back plate 38. The inner sides of both ends of the partition 33 are installed with sinking shafts 34 that pass through the inclined parts of the back plate 38. The guide belt 35 is sleeved on the outside of the sinking shaft 34. A driving motor 37 is installed on the top of the back plate 38. The upper end of the sinking shaft 34 is provided with two limiting pieces 341. The two sinking shafts 34 are located between the two limiting pieces 341 and are sleeved with a transmission ring 344. The driving The output shaft of the motor 37 is connected to the two transmission rings 344 through a belt drive. The surface of the sinking shaft 34 located between the two limiting pieces 341 is provided with ribs 342. The inner wall of the transmission ring 344 is provided with rib grooves corresponding to the ribs 342. A return spring 343 is provided between the limiting piece 341 located below and the upper part of the bent portion of the back plate 38. The return spring 343 is sleeved on the outside of the sinking shaft 34. Each group of the baffles 36 is two rows (see attached Figure 4 The baffles 36 between the two rows are arranged in an inclined and staggered manner. The baffles 36 in the first row (attached Figure 4 The upper end of the middle cI) is lower than the second row of baffles 36 (attached Figure 4 The upper end of c-II) in the middle allows the oil smoke and oil mist to pass through the first row of baffles 36 and then be further blocked by the second row of baffles 36. The driving motor 37 drives the two transmission rings 344 to rotate through the belt. At the same time, the transmission ring 344 drives the sinking shaft 34 with ribs 342 to rotate by using the rib groove, thereby driving the guide belt 35 sleeved on the outside of the two sinking shafts 34 to transmit (the transmission direction is shown in the attached figure). Figure 4 The baffle 36 on the guide belt 35 is driven to continuously transmit to the rear of the front panel 12, so as to block the oil smoke and oil mist that enter the device housing 1 through the front panel 12. The direction of the oil smoke and oil mist is shown in the attached diagram. Figure 4 (The dotted path along the arrow at point a) shows that the oil smoke duct and the baffles 36 are in opposite directions, causing the oil smoke airflow to change direction along the obliquely staggered baffles 36. Since the oil droplets in the oil smoke and mist have a large mass and great inertia, they cannot change their direction of movement as quickly as water vapor or other gases. Therefore, the oil droplets that collide with the baffles 36 will flow downward under the action of gravity and eventually drip into the drainage plate 2. By providing a transmission guide belt 35, the baffles 36 are allowed to continuously pass behind the front panel 12, increasing the number of times the oil smoke and oil mist come into contact with the baffles 36, thereby enabling more oil droplets to be discharged within the limited flow channel.

[0053] Furthermore, after the baffle 36 has been used for a long time, the oil droplets attached to its surface solidify on the surface of the baffle 36, thereby increasing the weight of the guide belt 35, causing the sinking shafts 34 on both sides of the guide belt 35 to sink and compress the return spring 343. The lower end bearing of one of the sinking shafts 34 is connected to a U-shaped switch rod 345, and the switch rod 345 conflicts with the switch of the heating pump 312. The sinking of the sinking shaft 34 will start the heating pump 312 through the switch rod 345. The heating pump 312 is equipped with a pump and an electric heating wire. The water injected through the water inlet 313 is heated by the electric heating wire and then flushed to the baffle 36 by the nozzle 311, so that the solidified grease is softened and flushed into the oil area of ​​the sewage discharge plate 2, and finally discharged through the sewage outlet 23. After the solidified oil on the baffle 36 is cleaned, the overall weight of the guide belt 35 is reduced, and it is reset under the action of the return spring 343.

[0054] Among them, the arrangement of the ribs 342 and the transmission ring 344 can ensure that when the sinking shafts 34 are sinking due to gravity, the driving motor 37 can still drive the two sinking shafts 34 to rotate, thereby avoiding affecting the purification effect of the equipment.

[0055] Refer to the attached Figure 6 As shown, the filter assembly 4 includes a first connecting ring 43 and a second connecting ring 45, a rotating drum 44 is connected with a bearing between the first connecting ring 43 and the second connecting ring 45, and the rotating drum 44 includes two groups of inner drums 441. The first connecting ring 43 and the second connecting ring 45 are respectively provided with two ports connected to the inner drums 441. A switching motor 431 is installed on one side of the first connecting ring 43, and the output shaft of the switching motor 431 is sleeved with a gear. The outer side of the end of the rotating drum 44 is provided with a tooth groove engaged with the gear. The switching motor 431 drives the rotating drum 44 to rotate back and forth between the first connecting ring 43 and the second connecting ring 45, so that the two inner drums 441 can complete switching in the first connecting ring 43 and the second connecting ring 45, so that one of the inner drums 441 is used to filter oil smoke and oil mist while the other inner drum 441 can be backwashed, so as to prevent the filler in the inner drum 441 from accumulating oil mist particles and affecting the filtering effect;

[0056] In order to achieve the above-mentioned filtering function, it also includes a wind turbine 41 whose air inlet end is connected to one of the ports of the first connecting ring 43, and a recoil pump 42 is installed at the air outlet end of the wind turbine 41. The liquid inlet end of the recoil pump 42 is connected to the water injection port 313 through a pipeline, and the liquid outlet end of the recoil pump 42 is connected to another port of the first connecting ring 43. One port of the second connecting ring 45 is connected to an air hood 46 that passes through and extends to the other side of the back plate 38, and another port of the second connecting ring 45 is connected to a three-way valve 47, which is connected to the drain port 472 through the three-way valve 47. An air outlet pipe 471 is also connected to the purification component 5 through the three-way valve 47. An air outlet 11 is also provided at the corresponding position between the equipment housing 1 and the air outlet end of the purification component 5. During use, the wind turbine 41 generates wind pressure, and the oil smoke and oil mist introduced through the front panel 12 are separated by the oil mist particle separation component 3 to separate most of the oil mist particles and then discharged. The oil smoke and oil mist are drawn into the rotary drum 44 by the induced draft hood 46, cooled and filtered by the filter filler in the first inner drum 441, and then the tap water introduced into the water inlet 313 is drawn into the second inner drum 441 by the backwash pump 42 to carry the filtered oil smoke and oil mist into the second inner drum 441 for backwashing, and can also be filtered in the reverse direction. Finally, separation is achieved at the three-way valve 47, and the heavier flushing liquid is discharged through the pipeline into the drain port 472, while the filtered oil smoke and oil mist enter the purification component 5 through the air outlet pipe 471. The purification component 5 includes a negative oxygen ion generator and an electrostatic generator. Through high-voltage discharge, ultraviolet irradiation, water atomization and other methods, the oxygen molecules in the filtered oil smoke and oil mist gain electrons to form negative oxygen ions. The electrostatic generator is used to further adsorb small particles of dust, so that the oil smoke and oil mist discharged directly through the air outlet 11 are fresher. The end of the purification component 5 is also filled with activated carbon to further improve the quality of the discharged gas.

[0057] Furthermore, an oil fume concentration sensor is provided at the air inlet of the wind turbine 41. When the concentration increases, the speed of the wind turbine 41 increases and the fan power increases. When there is less oil fume, the power of the wind turbine 41 is reduced. This not only saves energy, but also reduces noise and increases the life of the equipment.

[0058] Among them, refer to the attached Figure 7The interior of the two inner cylinders 441 is filled with a glass fiber layer, a cooling layer, an air primary filter layer, a ceramic filter element layer and a HEPA filter layer in sequence. The glass fiber layer has a fine fiber structure and can effectively capture particulate matter and grease in oil smoke; the cooling layer needs to cooperate with the injected tap water for heat exchange and is discharged through the drain port 472 together with the backwash; the air primary filter layer is generally made of synthetic fiber or non-woven fabric, etc., which is used to further block the passage of larger particles; the HEPA filter layer is characterized by a removal efficiency of more than 99.97% for particles with a diameter of 0.3 microns (μm) or more. It is made of very fine fiber material to form an intricate mesh structure, so that air can pass through, but tiny particles will be intercepted on the filter material; the ceramic filter element layer is used in conjunction with the HEPA filter layer to achieve comprehensive purification of oil mist particles and harmful gases;

[0059] Furthermore, the filling material of the inner tube 441 is not limited to the glass fiber layer, cooling layer, air primary filter layer, HEPA filter layer and ceramic filter element layer, but can also be new materials, electrostatics, plasma and other related purification modules. The specific filling material is replaced according to the characteristics of the filter required by the actual environment.

[0060] It is worth noting that when one of the inner cylinders 441 is filtering, the other inner cylinder 441 is backwashing. During the backwashing process, heat exchange will be carried out with the oil smoke and oil mist in the inner cylinder 441 that is filtering, thereby taking away the heat of the oil smoke and oil mist and achieving a cooling effect.

[0061] The present application sets up an oil mist particle separation component 3, utilizes a number of obliquely and staggered baffles 36 to achieve inertial separation of oil smoke, and sets up a continuously driven guide belt 35, which drives the baffles 36 to continuously drive, thereby increasing the number of contacts between the oil smoke, oil mist and the baffles 36, and thus being able to discharge more oil droplets in a limited flow channel.

[0062] After the baffle 36 has been used for a long time, the oil droplets attached to the surface of the baffle 36 solidify and increase the weight of the guide belt 35, causing the sinking shafts 34 on both sides of the guide belt 35 to sink. During the sinking process, the switch of the heating pump 312 is triggered by the switch rod 345, thereby pumping in hot water and using the nozzle 311 to flush the baffle 36, softening the solidified grease and flushing it into the oil area of ​​the sewage discharge plate 2. No manual cleaning is required, and the heating pump 312 can be automatically shut down after cleaning, which greatly saves cleaning water.

[0063] The present application sets up a reciprocating rotating drum 44 and sets two groups of inner drums 441 in the rotating drum 44. The inner drums 441 rotate alternately so that when the filter layer in one group of inner drums 441 filters oil smoke and oil mist, the filter layer in the other group of inner drums 441 can be backwashed, eliminating the need for manual cleaning of the filter assembly 4, and having high practicality.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fume and oil mist purification device, characterized in that: The device comprises a housing, the housing cover of which is provided with a front panel, and an oil mist particle separation component, a filter component, and a purification component are provided inside the housing. The oil mist particle separation component comprises a back plate and a partition fixed inside the housing, and a guide belt is installed on the outer drive of the partition. A plurality of baffles are evenly distributed on the surface of the guide belt, and the baffles are used to inertially separate the oil mist particles in the oil smoke; The oil mist particle separation assembly further includes a cleaning chamber and a partition chamber installed on both sides of the device housing, the cleaning chamber and the partition chamber respectively wrapped around the ends of the guide belt, the inner wall of the partition chamber is glued with a wind shield, a heating pump is installed on the cleaning chamber, and nozzles connected to the liquid outlet of the heating pump are evenly distributed in the cleaning chamber, and the nozzles are used to clean the mist particles deposited on the surface of the baffle; It also includes a sewage discharge plate arranged below the equipment housing, a baffle plate is arranged between the sewage discharge plate and the back plate, and a sewage outlet, a water injection port and a drainage port are respectively arranged below the end of the sewage discharge plate; The filter assembly includes a first connecting ring and a second connecting ring, a rotating drum is connected between the first connecting ring and the second connecting ring with a bearing, the rotating drum includes two sets of inner drums, and the first connecting ring and the second connecting ring are respectively provided with two ports connected to the inner drums; Also included is a wind turbine having an air inlet connected to one of the ports of the first connecting ring, a recoil pump installed at the air outlet of the wind turbine, a liquid inlet of the recoil pump connected to the water injection port via a pipeline, and a liquid outlet of the recoil pump connected to the other port of the first connecting ring; One port of the second connecting ring is connected to an air hood that passes through and extends to the other side of the back plate, and the other port of the second connecting ring is connected to a three-way valve, which is connected to the drain pipe through the three-way valve, and is also connected to the purification component through an air outlet pipe. Air outlets are also provided at the corresponding positions of the equipment housing and the air outlet end of the purification component.

2. The oil fume and oil mist purification equipment according to claim 1, characterized in that: The interiors of the two inner cylinders are filled with a glass fiber layer, a cooling layer, an air primary filter layer, a ceramic filter element layer and a HEPA filter layer in sequence.

3. The oil fume and oil mist purification equipment according to claim 1, characterized in that: A switching motor is installed on one side of the first connecting ring, an output shaft of the switching motor is sleeved with a gear, and a tooth groove meshing with the gear is provided on the outer side of the end of the rotating drum.

4. The oil fume and oil mist purification equipment according to claim 1, characterized in that: The sewage discharge plate is divided into a sewage area and an oil area by the baffle plate. The sewage discharge plate is located below the oil area and an oil bottle is installed thereon. The sewage outlet penetrates and extends into the sewage area of ​​the sewage discharge plate.

5. The oil fume and oil mist purification equipment according to claim 1, characterized in that: The upper and lower parts of the back plate are both provided with inclined parts, the upper and lower parts of the partition are both in contact with the inclined parts of the back plate, and the inner sides of both ends of the partition are installed with sinking shafts that pass through the inclined parts of the back plate, and the guide belt is sleeved on the outside of the sinking shafts.

6. The oil fume and oil mist purification equipment according to claim 5, characterized in that: A driving motor is installed on the top of the back plate, and two limit plates are provided on the upper end of the sinking shaft. The two sinking shafts are located between the two limit plates and are sleeved with a transmission ring. The output shaft of the driving motor is connected to the two transmission rings through a belt drive. The surface of the sunken shaft located between the two limiting pieces is provided with ribs, and the inner wall of the transmission ring is provided with rib grooves corresponding to the ribs; A return spring is provided between the limiting piece located at the bottom and the upper portion of the bent portion of the back plate, and the return spring is sleeved on the outside of the sinking shaft.

7. The oil fume and oil mist purification equipment according to claim 6, characterized in that: The lower end bearing of one of the sinking shafts is connected to a U-shaped switch rod, and the switch rod conflicts with the switch of the heating pump.

8. The oil fume and oil mist purification equipment according to claim 1, characterized in that: Each group of baffles consists of two rows, and the baffles between the two rows are arranged in an inclined and staggered manner, with the upper end of the baffles in the first row being lower than the upper end of the baffles in the second row.

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