Oil fume purification equipment with cylindrical electrostatic electric field self-cleaning and drying functions

Abstract

The invention discloses oil fume purification equipment with cylindrical electrostatic electric field self-cleaning and drying functions, which comprises a shell, a rotating mechanism, a cylindrical electrostatic electric field, a cleaning device, a first steam pipe, a drain pipe and a plurality of second steam pipes, and the shell is provided with an air inlet and an air outlet; the two rotating mechanisms are arranged at the air inlet and the air outlet correspondingly, the output end of each rotating mechanism is provided with a fan blade, and each fan blade comprises an air uniformizing piece and a sealing piece; the cleaning device comprises a translation mechanism, a swing mechanism and a spraying frame, the spraying frame comprises a plurality of spraying pipes, and each spraying pipe is provided with a first spraying head; each spraying pipe is communicated with a first main pipe, and the first main pipe is connected with a water inlet pipe and an air inlet pipe in parallel. According to the lampblack purification equipment with the cylindrical electrostatic electric field self-cleaning and drying functions, through the synergistic effect of steam pyrolysis, dynamic flushing, steam drying and air sweeping evaporation, the cleaning efficiency is remarkably improved, the cleaning and drying time is shortened, and the equipment shutdown time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of oil fume purification equipment, in particular to an oil fume purification equipment with a cylindrical electrostatic electric field self-cleaning and drying function. Background Art

[0002] In the field of oil fume purification, cylindrical electrostatic fields are widely used due to their efficient particle capture capabilities. These fields typically consist of multiple coaxially arranged anode cylinders interposed with cathode needles, using high-voltage electrostatic forces to capture particulate matter and oil mist from the fume. However, after long-term operation, the inner walls of the anode cylinders become greasy and require regular spray cleaning to maintain purification efficiency. After cleaning, residual moisture may remain on the inner walls of the anode cylinders. If not thoroughly dried, the increased conductivity can lead to abnormal high-voltage discharge, resulting in malfunctioning equipment.

[0003] In traditional fume purification equipment, the cylindrical electrostatic field is only spray-cleaned, followed by compressed air purging to accelerate drying. Specifically, compressed air is introduced into the fume purification equipment, using the impact of the airflow to remove moisture from the inner wall of the anode cylinder. However, during the cleaning phase, spray rinsing alone is inefficient and difficult to remove stubborn oil stains on the inner wall of the anode cylinder. Furthermore, relying solely on airflow for drying results in low anode cylinder drying efficiency. This dual inefficiency in both cleaning and drying increases equipment downtime.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an oil fume purification device with cylindrical electrostatic electric field self-cleaning and drying functions, aiming to solve the technical problem of low self-cleaning and drying efficiency of cylindrical electrostatic electric fields in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] Oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions, including:

[0008] The casing is provided with an air inlet and an air outlet along the direction of smoke flow;

[0009] Two rotating mechanisms are respectively provided at the air inlet and the air outlet. The output end of each rotating mechanism is provided with a fan blade that rotates around its own axis. Each fan blade includes an air distribution blade and a sealing blade with an included angle. When the air distribution blades of multiple fan blades are spliced ​​in sequence, they are in the flue gas purification stage. When the sealing blades of multiple fan blades are spliced ​​in sequence, they are in the self-cleaning and drying stage.

[0010] At least one cylindrical electrostatic field, comprising a housing, a plurality of anode cylinders, and a cathode rack, wherein all anode cylinders are disposed within the housing, and the two ends of each anode cylinder are respectively connected to the two side walls of the housing, forming a closed area between the outer walls of all anode cylinders and the inner wall of the housing, and the axis of the anode cylinder is coaxially arranged with the flow direction of the flue gas; the cathode rack is mounted on the housing via a plurality of insulators, and the cathode rack is provided with a plurality of cathode pins, each cathode pin being inserted into a corresponding anode cylinder;

[0011] At least one cleaning device, comprising a translation mechanism provided on the housing, a swing mechanism provided at the output end of the translation mechanism, and a spray rack provided at the output end of the swing mechanism, the spray rack comprising a plurality of spray pipes spaced apart in parallel, each spray pipe being provided with a plurality of first nozzles directed toward the anode cylinder; each spray pipe being connected to a first main pipe, a water inlet pipe and an air inlet pipe being connected in parallel to the first main pipe, the water inlet pipe being provided with a first control valve and having its end connected to a water supply device, the air inlet pipe being provided with a second control valve and having its end connected to the air supply device;

[0012] a first steam pipe mounted on the housing and extending into the enclosed area;

[0013] a drain pipe, which is provided at the bottom of the shell and extends into the enclosed area, and a drain valve is provided on the drain pipe;

[0014] A plurality of second steam pipes are evenly distributed on the top of the casing. All the second steam pipes are connected to a third steam pipe, which extends outside the casing. The first steam pipe and the third steam pipe are both externally connected to a steam generating device.

[0015] Furthermore, the rotating mechanism includes:

[0016] The transmission shaft is rotatably connected to the housing; a plurality of worms are arranged at intervals along the axis of the transmission shaft;

[0017] The first motor is mounted on the housing, and the output end is connected to the transmission shaft;

[0018] The rotating shaft is fixed on the fan blade and is rotatably connected to the casing. A worm wheel meshing with the worm is provided at the end of the rotating shaft. The fan blade is driven to rotate around the rotating shaft through the worm wheel and the worm.

[0019] Furthermore, the air balancing sheet and the sealing sheet have equal widths and an included angle of 0.5°; a line connecting their free ends together with the air balancing sheet and the sealing sheet form an equilateral triangle structure, and the rotation axis is located at the geometric center of the equilateral triangle structure.

[0020] Furthermore, a sealing strip is provided at the free end of the sealing sheet, and the sealing strip extends along the length direction of the sealing sheet.

[0021] Furthermore, the spray rack includes two parallel first and second vertical frames, and the first and second vertical frames are respectively slidably connected to the casing; the two ends of the spray pipe are respectively rotatably connected to the first and second vertical frames, and the ends are connected to the first main pipe through a rotary joint; the swing mechanism includes a rocker fixed on each spray pipe, a first cylinder fixed on the first vertical frame, and a vertical rod provided at the output end of the first cylinder, a waist hole is opened on the rocker, and a first roller is rotatably connected to the vertical rod, and the first roller slides with the rocker.

[0022] Furthermore, the side wall of the first stand is provided with a side panel, and a vertical slot is opened on the side panel; the translation mechanism includes a second motor fixed on the casing, a turntable provided at the output end of the second motor, and a sliding column provided at the edge of the turntable, and the sliding column is slidably connected to the vertical slot.

[0023] Furthermore, it also includes a protective cover arranged on the outer wall of the casing, the end of the spray pipe is rotatably connected to the casing wall and extends to the inside of the protective cover, the first stand, the swing mechanism and the translation mechanism are all located in the protective cover, and the second stand is located in the casing.

[0024] Furthermore, the first nozzle is a duckbill nozzle, and each of the spray pipes is provided with two rows of first nozzles, and the two rows of first nozzles are staggered with each other.

[0025] Furthermore, at least one of the first steam pipes is provided on the top of the shell, a plurality of the first steam pipes are connected to a fourth steam pipe, the third steam pipe and the fourth steam pipe are connected to a second main pipe, and a pressure gauge is provided on the second main pipe.

[0026] Furthermore, a hot air processing unit is provided on the air inlet pipe, and the hot air processing unit includes a hot air box arranged between the second control valve and the air supply device, a plurality of heating components, and a plurality of partitions arranged at intervals in the hot air box. The partitions cooperate to form a serpentine air duct, and each heating component is embedded in a corresponding partition.

[0027] Beneficial effects:

[0028] The present invention provides an oil fume purification device with a cylindrical electrostatic electric field self-cleaning and drying function, which has the following beneficial effects: (1) the rotating mechanism drives the fan blades to rotate, the air distribution plate closes the air inlet and the air outlet, forming a guide channel, and the smoke passes through the cylindrical electrostatic electric field to achieve smoke purification; (2) the rotating mechanism drives the fan blades to rotate, the sealing plate closes the air inlet and the air outlet, forming a closed cavity, high-temperature steam is introduced into the closed cavity to dissolve stubborn oil stains, and the swing mechanism and the translation mechanism are combined to drive the first nozzle to move in a composite manner, and the first nozzle sprays cleaning liquid to fully flush the cylindrical electrostatic electric field, the inner wall of the casing and the air distribution plate, thereby achieving efficient self-cleaning; (3) high-temperature steam is introduced into the closed area in the casing, and the cleaning liquid attached to the inner wall of the anode cylinder and the outer wall of the casing is heated and evaporated by heat conduction, and the first nozzle sprays compressed gas to fully sweep the cylindrical electrostatic electric field, the inner wall of the casing and the air distribution plate, thereby achieving efficient self-drying, which can effectively shorten the equipment downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a main cross-sectional view of the present invention;

[0030] Figure 2 is a side sectional view of the present invention;

[0031] Figure 3 Schematic diagram of the connection of the spray pipe in the present invention;

[0032] Figure 4 is a cross-sectional view of the hot air treatment unit of the present invention;

[0033] Figure 5 It is a structural diagram of the cylindrical electrostatic electric field in the present invention;

[0034] Figure 6 is a cross-sectional view of the cylindrical electrostatic field of the present invention;

[0035] Figure 7 Schematic diagram of the connection of the steam pipe in the present invention;

[0036] Figure 8 It is a structural diagram of the swing mechanism in the present invention;

[0037] Figure 9 An exploded view of the swing mechanism of the present invention;

[0038] Figure 10 An exploded view of the translation mechanism of the present invention;

[0039] Figure 11 The structure of the rotating mechanism in the present invention Figure 1 ;

[0040] Figure 12 Schematic diagram of the air inlet and outlet closed by the air balancing plate in the present invention Figure 1 ;

[0041] Figure 13 Schematic diagram of the sealing sheet sealing the air inlet and outlet in the present invention Figure 1 ;

[0042] Figure 14 for Figure 13 A magnified view of point A;

[0043] Figure 15 The structure of the rotating mechanism in the present invention Figure 2 ;

[0044] Figure 16 Schematic diagram of the air inlet and outlet closed by the air balancing plate in the present invention Figure 2 ;

[0045] Figure 17 Schematic diagram of the sealing sheet sealing the air inlet and outlet in the present invention Figure 2 .

[0046] 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81 Rod 63, first roller 64, spray rack 7, spray pipe 71, first nozzle 711, rotary joint 712, second nozzle 713, first main pipe 72, first vertical frame 73, side plate 731, vertical slot 732, first pulley 733, second vertical frame 74, second pulley 741, water inlet pipe 8, first control valve 81, water supply device 82, water pump 821, water tank 822, air inlet pipe 9, second control valve 91, air supply device 92, centrifugal fan 921, air filter assembly 922, first steam pipe 10, fourth steam pipe 101, second main pipe 102, pressure gauge 103, third control valve 104, second steam pipe 20, third steam pipe 201, hot air treatment unit 30, hot air box 301, heating assembly 302, partition 303, serpentine air duct 304. DETAILED DESCRIPTION

[0047] The present invention provides a fume purification device with a cylindrical electrostatic field self-cleaning and drying function. To make the objectives, technical solutions, and effects of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0048] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] See also Figures 1 to 17As shown, the present invention provides an oil fume purification device with a cylindrical electrostatic field self-cleaning and drying function, comprising: a housing 1, two rotating mechanisms 2, at least one cylindrical electrostatic field 4, at least one cleaning device, a first steam pipe 10, a drain pipe 411 and a plurality of second steam pipes 20; the housing 1 is provided with an air inlet 11 and an air outlet 12 along the direction of smoke flow; the two rotating mechanisms 2 are respectively provided at the air inlet 11 and the air outlet 12, and the output end of each rotating mechanism 2 is provided with a fan blade 3 rotating around its own axis, each fan blade 3 including an air balancing plate 31 and a sealing plate 32 with an angle; the balancing of the plurality of fan blades 3 When the wind blades 31 are spliced ​​in sequence, they are in the flue gas purification stage. When the sealing pieces 32 of the multiple wind blades 3 are spliced ​​in sequence, they are in the self-cleaning and drying stage. The cylindrical electrostatic field 4 includes a shell 41, a plurality of anode cylinders 42 and a cathode rack 43. All anode cylinders 42 are arranged inside the shell 41, and the two ends of each anode cylinder 42 are respectively connected to the two side walls of the shell 41. A closed area 44 is formed between the outer wall of all anode cylinders 42 and the inner wall of the shell 41, and the axis of the anode cylinder 42 is coaxial with the flow direction of the flue gas. The cathode rack 43 is installed on the shell 41 through a plurality of insulators 45, and The cathode rack 43 is provided with a plurality of cathode needles 46, each cathode needle 46 correspondingly inserted into an anode cylinder 42; the cleaning device includes a translation mechanism 5 provided on the housing 1, a swing mechanism 6 provided at the output end of the translation mechanism 5, and a spray rack 7 provided at the output end of the swing mechanism 6, the spray rack 7 including a plurality of spray pipes 71 arranged in parallel and spaced apart, each spray pipe 71 being provided with a plurality of first nozzles 711 directed toward the anode cylinder 42; each spray pipe 71 is connected to a first main pipe 72, to which a water inlet pipe 8 and an air inlet pipe 9 are connected in parallel, and the water inlet pipe 8 is provided with a first control valve 81, and its end is connected to the water supply device 82, the air inlet pipe 9 is provided with a second control valve 91, and its end is connected to the air supply device 92; the first steam pipe 10 is installed on the shell 41 and extends into the closed area 44; the drain pipe 411 is provided at the bottom of the shell 41 and extends into the closed area 44, and the drain pipe 411 is provided with a steam trap 412; multiple second steam pipes 20 are evenly distributed on the top of the casing 1, all the second steam pipes 20 are connected to the third steam pipe 201, the third steam pipe 201 extends to the outside of the casing 1, and the first steam pipe 10 and the third steam pipe 201 are both externally connected to a steam generating device.

[0050] Flue gas cleaning stage, such as Figure 12 、 16, the rotating mechanism 2 drives the wind blades 3 to rotate, and the sealing pieces 32 of each wind blade 3 are sequentially spliced to close the air inlet 11 and the air outlet 12, so that a closed cavity is formed in the casing 1. The high-temperature steam generated by the steam generating device enters the closed cavity along the third steam pipe 201 and the second steam pipe 20, and the steam diffuses and penetrates to the inner wall of the anode cylinder 42, the outer wall of the shell 41 and the inner wall of the casing 1 in the closed cavity, and decomposes stubborn dirt through the hot melting effect; after a period of time, the water supply device 82 is opened, and the first control valve 81 is opened and the second control valve 91 is closed, the cleaning liquid is transported to each spray pipe 71 through the water inlet pipe 8 and the first main pipe 72, and is sprayed at multiple angles by the first spray head 711 to wash the inner wall of the anode cylinder 42 and the inner wall of the casing 1, and at the same time, the translation mechanism 5 drives the spray pipe 71 to move axially and the swing mechanism 6 drives the spray pipe 71 to swing reciprocally, so that the coverage of the cleaning first spray head 711 is expanded through the compound motion, and the inner wall of the electrostatic field and the casing 1 is fully washed. Through the dissolution of oil stains by high-temperature steam and the washing of cleaning liquid, the synchronization of oil stain stripping and washing is realized, and the self-cleaning efficiency is accelerated.

[0051] The cleaning stage, such as Figure 13 、 17 , the rotating mechanism 2 drives the wind blades 3 to rotate, and the sealing pieces 32 of each wind blade 3 are sequentially spliced to close the air inlet 11 and the air outlet 12, so that a closed cavity is formed in the casing 1. The high-temperature steam generated by the steam generating device enters the closed cavity along the third steam pipe 201 and the second steam pipe 20, and the steam diffuses and penetrates to the inner wall of the anode cylinder 42, the outer wall of the shell 41 and the inner wall of the casing 1 in the closed cavity, and decomposes stubborn dirt through the hot melting effect; after a period of time, the water supply device 82 is opened, and the first control valve 81 is opened and the second control valve 91 is closed, the cleaning liquid is transported to each spray pipe 71 through the water inlet pipe 8 and the first main pipe 72, and is sprayed at multiple angles by the first spray head 711 to wash the inner wall of the anode cylinder 42 and the inner wall of the casing 1, and at the same time, the translation mechanism 5 drives the spray pipe 71 to move axially and the swing mechanism 6 drives the spray pipe 71 to swing reciprocally, so that the coverage of the cleaning first spray head 711 is expanded through the compound motion, and the inner wall of the electrostatic field and the casing 1 is fully washed. Through the dissolution of oil stains by high-temperature steam and the washing of cleaning liquid, the synchronization of oil stain stripping and washing is realized, and the self-cleaning efficiency is accelerated.

[0052] The drying stage, the steam generating device switches to deliver high-temperature steam to the first steam pipe 10, and the high-temperature steam enters the closed area 44 of the cylindrical electrostatic field 4. The wall parts of the anode cylinder 42 and the shell 41 are rapidly heated by steam heat conduction to accelerate water evaporation; at the same time, the gas supply device 92 inputs compressed gas to the spray pipe 71, the first control valve 81 is closed, and the second control valve 91 is opened, and the compressed gas flows to each first spray head 711 through the air inlet pipe 9, the first main pipe 72 and the spray pipe 71, so as to realize the spraying of compressed gas to the inner wall of the cylindrical electrostatic field 4 and the casing 1. With the coordinated driving of the translation mechanism 5 and the swing mechanism 6, the first spray head 711 swings and moves axially, and the compressed gas sweeps the inner wall of the cylindrical electrostatic field 4 and the casing 1 in all directions, accelerating the evaporation and removal of residual cleaning liquid. Through high-temperature steam drying and gas blowing, the self-drying efficiency can be accelerated. Through the synergistic effect of steam pyrolysis, dynamic washing, steam drying and gas evaporation, the cleaning efficiency is significantly improved and the cleaning and drying time is shortened.

[0053] In the above, the steam generating equipment can adopt the existing boiler system of the enterprise. Under normal circumstances, the enterprise has been equipped with boiler equipment to meet daily production needs, and the high-temperature and high-pressure steam generated by it can be connected to the first steam pipe 10 and the third steam pipe 201 of the present device by adding branch pipes. The high-temperature steam output by the boiler is continuously injected into the closed area 44 through the branch pipe, and the existing production capacity of the boiler is used to realize the drying function, and the high-temperature steam is continuously injected into the closed cavity in the casing 1 to realize the oil dissolution function. There is no need to additionally configure special steam generating equipment, thereby reducing equipment investment and operation and maintenance costs. The first steam pipe 10 and the third steam pipe 201 are respectively independently equipped with a third control valve 104 to control the direction of steam delivery.

[0054] In the above description, the air distribution plate 31 is provided with ventilation holes arranged in a matrix to achieve air distribution.

[0055] This equipment provides a variety of cleaning layout solutions for different working conditions. In one embodiment, when a single cylindrical electrostatic field 4 and a cleaning device are provided, the cleaning device is arranged near the air outlet 12. Since the flue gas flow starts at the air inlet 11, a large amount of oil and dirt adheres to the air balancing blades 31 of the air inlet 11. By utilizing the flue gas flow direction characteristics, most of the cleaning liquid sprayed by the first nozzle 711 on the spray pipe 71 flushes the cylindrical electrostatic field 4, and a small part penetrates the anode cylinder 42 and reaches the fan blade 3 of the air inlet 11 in reverse, effectively removing the oil and dirt accumulated on the air balancing blade 31 of the fan blade 3.

[0056] In another embodiment, Figure 1 As shown, when a double-cylinder electrostatic field 4 is combined with a single cleaning device, or a single-cylinder electrostatic field 4, a single plate-type electrostatic field, and a single cleaning device are combined, the cleaning device is located between the two electrostatic fields. Each spray pipe 71 is also equipped with a symmetrically arranged first nozzle 711 and a second nozzle 713. The first nozzle 711 and the second nozzle 713 respectively spray an adjacent electrostatic field. Most of the cleaning liquid sprayed by the nozzle flushes the electrostatic field, and a small portion of the cleaning liquid passes through the anode cylinder 42 or the electrode plate and reaches the fan blades 3 at the air inlet 11 and the air outlet 12 to flush all the air balancing blades 31. In this embodiment, the above embodiment is preferred.

[0057] In a preferred embodiment, see Figure 11The rotating mechanism 2 comprises a transmission shaft 21, a first motor 23 and a rotating shaft 24; the transmission shaft 21 is rotationally connected with the casing 1; a plurality of interval arranged worm gears 22 are arranged on the transmission shaft 21 along the axial direction; the first motor 23 is arranged on the casing 1 and the output end is connected with the transmission shaft 21; the rotating shaft 24 is fixedly arranged on the fan blade 3 and rotationally connected with the casing 1, and the end of the rotating shaft 24 is provided with a worm wheel 25 engaged with the worm gear 22; the fan blade 3 is driven to rotate around the rotating shaft 24 through the worm wheel 25 and the worm gear 22. The first motor 23 drives the transmission shaft 21 to rotate, and drives each segment worm gear 22 to rotate synchronously, the worm gear 22 is engaged with the corresponding worm wheel 25 to drive the corresponding rotating shaft 24 to rotate, so that all the fan blades 3 rotate synchronously around the rotating shaft 24, when all the fan blades 31 rotate to the same vertical plane, the fan blades 31 close the air inlet 11 and the air outlet 12, forming a continuous flow channel, so that the flue gas flows through the inside of the casing 1, and the equipment is in the flue gas purification stage; when all the sealing pieces 32 rotate to the same vertical plane, the sealing pieces 32 close the air inlet 11 and the air outlet 12, so as to form a closed cavity in the casing 1, and the equipment is in the cleaning and drying stage.

[0058] In addition to driving the rotating shaft 24 to rotate through the worm wheel 25 and the worm gear 22 mechanism, the rotating shaft 24 can also be driven to rotate through the gear and rack engagement mechanism, referring to Figure 15 Specifically, the casing 1 is provided with a second cylinder 26, the output end of the second cylinder 26 is connected with a rack 27, the rack 27 is slidingly connected with the casing 1, and the rotating shaft 24 is fixedly provided with a gear 28 engaged with the rack 27; the extension rod of the second cylinder 26 is driven to translate when it is extended and retracted, the rack 27 is engaged with a plurality of gears 28 to drive each fan blade 3 to rotate around the connected rotating shaft 24.

[0059] In the above, referring to Figure 1 To improve the reliability of the rotating mechanism 2, the inner wall of the casing 1 is provided with a protective cover 14, the protective cover 14 completely covers the extension section of the rotating shaft 24 and the worm wheel 25 and the worm gear 22, effectively isolating the flue gas corrosion and the cleaning liquid erosion, and ensuring the long-term stable operation of the transmission structure.

[0060] In an embodiment, referring to Figure 12 , 13, the width of the uniform air blade 31 and the sealing blade 32 is equal and the included angle is 60°; the line connecting the free ends of the two forms a right triangle structure together with the uniform air blade 31 and the sealing blade 32, and the rotating shaft 24 is located at the geometric center of the right triangle structure, i.e. the free ends and the connecting ends of the uniform air blade 31 and the sealing blade 32 are all consistent with the distance from the axis of the rotating shaft 24. Through the above setting, the motion trajectories of the adjacent air blades 3 do not interfere with each other during the rotation, ensuring the reliability of the synchronous rotation of the multiple air blades 3; and when the air blade 3 rotates around the rotating shaft 24, the uniform air blade 31 reaches the position of the air inlet 11 / air outlet 12, which is completely coincident with the position when the sealing blade 32 switches to the closed state, so that the structure can be simplified and no additional sealing structure needs to be added.

[0061] It should be noted that during the cleaning and drying stages, the sealing blade 32 rotates to the position of the air inlet 11, and the uniform air blade 31 rotates synchronously with the rotating shaft 24 by 60° to an inclined state, which is beneficial for being washed by the cleaning liquid sprayed by the first nozzle 711 and the second nozzle 713.

[0062] In another embodiment, referring to Figure 16 , 17 , the width of the uniform air blade 31 and the sealing blade 32 is equal, and the rotating shaft 24 is located at the connecting end of the uniform air blade 31 and the sealing blade 32. When the device switches from the flue gas purification stage to the cleaning stage, the air blade 3 rotates around the rotating shaft 24 to make the sealing blade 32 as a whole offset to the original working position of the uniform air blade 31 in the adjacent air blade 3, at this time all the sealing blades 32 are laterally offset by one blade width in the covering position of the air inlet 11 / air outlet 12 compared with the working position of the uniform air blade 31. This position offset causes a strip-shaped gap between the first end and the last end air blade 3 after rotation and the side wall of the air inlet 11 / air outlet 12. Therefore, fixed baffles need to be added on both side edges of the air inlet 11 / air outlet 12 to ensure the sealing effect of the air blade 3 in different stages.

[0063] Further, referring to Figure 13 , 14 , the free end of the sealing blade 32 is provided with a sealing strip 33 extending along the length direction of the sealing blade 32, and in the cleaning and drying stages, the sealing strip 33 on each sealing blade 32 is in contact with the connecting end on the adjacent sealing blade 32 to eliminate the gap between the two adjacent sealing blades 32, improve the sealing performance of the closed cavity formed in the cabinet 1, and facilitate the subsequent dissolution of the oil stains in the closed cavity by high-temperature steam.

[0064] In a preferred embodiment, referring to Figure 2 , 8, 9, the spray frame 7 comprises two parallel first stand 73 and second stand 74, first stand 73 and second stand 74 are respectively connected with the shell 1 slidingly; the two ends of the spray pipe 71 are respectively connected with the first stand 73 and the second stand 74 rotatably, and the end is communicated with the first main pipe 72 through the rotary joint 712, which ensures that the pipeline remains sealed during swinging; the swing mechanism 6 comprises a rocker 61 fixed on each spray pipe 71, a first cylinder 62 fixed on the first stand 73, and a vertical rod 63 provided on the output end of the first cylinder 62, the rocker 61 is provided with a waist hole 611, the vertical rod 63 is rotatably connected with a first roller 64, the first roller 64 is in sliding fit with the rocker 61, specifically, the vertical rod 63 is vertically slidingly connected with the first stand 73 to avoid the vertical rod 63 from rotating circumferentially and affecting the smoothness of movement. When the extension rod of the first cylinder 62 extends or retracts, the vertical rod 63 moves up and down along the vertical direction, the first roller 64 slides along the waist hole 611 and drives the rocker 61 to swing around the axis of the corresponding spray pipe 71, thereby driving each spray pipe 71 to swing around its own axis, so as to realize dynamic adjustment of the spray angle of the first spray head 711.

[0065] In the above, the rotary joint 712 is a straight-through rotary joint, the model is JSGQZT50B, and is suitable for gas or liquid medium.

[0066] Further, referring to Figure 8 、 9 , the side wall of the first stand 73 is provided with a side plate 731, and the side plate 731 is provided with a vertical groove 732; the translation mechanism 5 comprises a second motor 51 fixed on the shell 1, a turntable 52 provided on the output end of the second motor 51, and a sliding column 53 provided on the edge of the turntable 52, and the sliding column 53 is slidingly connected with the vertical groove 732. Specifically, the sliding column 53 is rotatably connected with a second roller 54, and the second roller 54 is in sliding fit with the vertical groove 732. When the second motor 51 drives the turntable 52 to rotate, the sliding column 53 moves in a circular motion around the center of the turntable 52, the second roller 54 slides up and down along the vertical groove 732 and pushes the side plate 731 and the first stand 73 to move back and forth along the shell 1, thereby driving all the spray pipes 71 to translate axially; in this process, the swing mechanism 6 synchronously drives each spray pipe 71 to swing around its own axis, forming a composite motion mode of axial translation and self-rotation swing, which ensures that the spray covers no dead angle.

[0067] Preferably, referring to Figure 10The rotating disc 52 is provided with a radial adjusting groove 521, a sliding block 522 is slidably connected in the adjusting groove 521, and the sliding column 53 is fixedly arranged on the sliding block 522. The adjusting groove 521 is also rotatably connected with a screw rod 523, the screw rod 523 is engaged with the sliding block 522, and the screw rod 523 is rotated to drive the sliding block 522 to slide along the adjusting groove 521, so as to adjust the distance between the sliding column 53 and the center of the rotating disc 52, and then change the stroke distance of the axial reciprocating movement of the spray pipe 71, so as to adapt to different sizes of electrostatic fields.

[0068] In the above embodiment, referring to Figure 2 In order to prolong the service life of the swing mechanism 6 and the translation mechanism 5 and avoid corrosion caused by cleaning liquid and flue gas, a protective cover 13 is arranged on the outer wall of the cabinet 1. The end of the spray pipe 71 is rotatably connected with the wall of the cabinet 1 and extends into the protective cover 13. The first stand 73, the swing mechanism 6 and the translation mechanism 5 are located in the protective cover 13, and the second stand 74 is located in the cabinet 1. Since the spray pipe 71 and the wall of the cabinet 1 have sealing property, the flue gas and the cleaning liquid can be prevented from splashing into the protective cover 13. In addition, a cabinet door can be arranged on the protective cover 13, which facilitates regular maintenance or replacement of internal mechanism components and prevents external pollutants from entering.

[0069] Preferably, referring to Figure 2 、 8 The top and bottom of the cabinet 1 are respectively provided with first rails 15, and the top and bottom of the protective cover 13 are respectively provided with second rails 16. The cross sections of the first rails 15 and the second rails 16 are triangular. The first stand 73 is slidably connected with the first rails 15 through first pulleys 733, and the second stand 74 is slidably connected with the second rails 16 through second pulleys 741. Specifically, the wheel surfaces of the first pulleys 733 and the second pulleys 741 are respectively provided with V-shaped grooves matched with the triangular rails. The V-shaped grooves are in contact with the triangular surfaces of the rails, which limits the axial movement of the pulleys and prevents deviation. In addition, the inclined surfaces of the triangular rails can guide the cleaning liquid to flow down naturally along the inclined surfaces, so as to avoid accumulation of liquid on the surface of the rails and reduce the risk of corrosion.

[0070] In a preferred embodiment, referring to Figure 1, the first nozzle 711 is a duckbill nozzle. Specifically, the duckbill nozzle is tilted, that is, there is a certain angle between the water outlet and the horizontal plane to enhance the impact coverage of the cleaning liquid on the electric field surface; each of the spray pipes 71 is provided with two rows of first nozzles 711, and the two rows of first nozzles 711 are staggered. Similarly, a second nozzle 713 is added to the spray pipe 71 to achieve synchronous flushing of the electrostatic electric field on both sides. The second nozzles 713 are in two rows, and the two rows of second nozzles 713 are staggered. In the process of the swing mechanism 6 driving the spray pipe 71 to swing back and forth, the spray ranges of the two rows of nozzles partially overlap, eliminating the cleaning blind spots on the electrostatic electric field surface and the inner wall of the casing 1, and ensuring that the oil residue area is repeatedly flushed; the staggered layout is combined with the swing and axial composite motion, so that the cleaning liquid or compressed gas forms a multi-angle cross impact in complex areas such as the electrostatic electric field gap and the corners of the casing 1, significantly improving the cleaning uniformity and coverage density.

[0071] In a preferred embodiment, at least one first steam pipe 10 is disposed at the top of the housing 41. Specifically, when a single first steam pipe 10 is provided, it is preferably located at the center of the top of the housing 41. Because high-temperature steam has the physical properties of low density and naturally rises, when steam is introduced from the top, it diffuses downward along the enclosed area 44 between the inner wall of the housing 41 and the outer wall of the anode cylinder 42, gradually sinking due to gravity. This flow path allows the steam to fully contact the top space of the enclosed area 44 and, as it descends, covers the circumferential surface of the outer wall of the anode cylinder 42, thereby reducing uneven distribution caused by steam accumulation at the top during its ascent.

[0072] See Figure 5 、 6 When there are multiple first steam pipes 10, multiple first steam pipes 10 can be installed on the top and side walls of the outer shell 41 to address situations where the cylindrical electrostatic field 4 is large or contains a high amount of residual moisture after cleaning. For example, two first steam pipes 10 can be symmetrically arranged on the top of the outer shell 41, while one first steam pipe 10 can be added on each side wall. These multiple first steam pipes 10 are connected to a single fourth steam pipe 101, which is then connected to an external steam generator. By introducing steam simultaneously at multiple points, the diffusion rate of high-temperature steam within the enclosed area 44 can be significantly increased, shortening the time it takes for steam to fill the entire space. This is particularly suitable for cylindrical electrostatic fields 4 with a relatively large horizontal length.

[0073] See Figure 7The fourth steam pipe 101 is connected to the third steam pipe 201 and the second main pipe 102, and the pressure gauge 103 is arranged on the second main pipe 102. Specifically, the third control valve 104 is arranged on the third steam pipe 201 and the fourth steam pipe 101, respectively, and the third control valve 104 can selectively deliver steam to the closed cavity in the casing 1 or the closed area 44 in the shell 41. The pressure gauge 103 monitors the pressure of the second main pipe 102 in real time, and when the third control valve 104 is opened to the corresponding branch, the measured pressure value reflects the real-time working condition of the target area. For example, the third steam pipe 201 is opened in the cleaning stage, and the pressure gauge 103 displays the pressure of the closed cavity; the fourth steam pipe 101 is switched to in the drying stage, and the pressure of the closed area 44 is displayed. This single-table double-zone monitoring mechanism can ensure data accuracy while significantly reducing the complexity of the steam pipe system.

[0074] Preferably, referring to Figure 5 、 6 In a preferred embodiment, the bottom of the shell 41 is provided with a funnel-shaped water collecting part 413, and the side wall thereof is inclined inward from top to bottom, forming a tapered flow guide structure. The drain pipe 411 is located at the bottom of the water collecting part 413. During the steam drying process, the water droplets generated by the condensation of high-temperature steam after contacting the outer wall of the anode cylinder 42 and the inner wall of the shell 41 flow downward along the outer wall of the anode cylinder 42 and the inner wall of the shell 41 under the action of gravity, and finally converge to the funnel-shaped water collecting part 413. Due to the inclined side wall design of the water collecting part 413, the condensed water can be quickly concentrated to the inlet of the drain pipe 411, avoiding stagnation of water on the bottom plane to form water accumulation. The drain valve 412 timely drains the condensed water outside the shell 41, while preventing external air from backflowing or steam from escaping.

[0075] In a preferred embodiment, referring to Figure 3 、 4 The air inlet pipe 9 is provided with a hot air treatment unit 30, which includes a hot air box 301 arranged between the second control valve 91 and the air supply device 92, a plurality of heating assemblies 302, and a plurality of partition plates 303 arranged in the hot air box 301. The partition plates 303 cooperate to form a serpentine air duct 304, and each heating assembly 302 is embedded in a partition plate 303. Through the design of the serpentine air duct 304, the heating time is prolonged to ensure that the gas is heated to the preset temperature. The heating assembly 302 can be a heating wire or an electric heating tube. The heating assembly 302 is embedded in the partition plate 303, so that it faces the serpentine air duct 304 on both sides and radiates heat to the air ducts on both sides.

[0076] Preferably, heating assemblies 302 are additionally arranged on the inner wall of the hot air box 301 close to the serpentine air duct 304, further improving the heat exchange efficiency.

[0077] In the above, referring to Figure 3The water supply device 82 comprises a water pump 821 and a water tank 822 for storing the cleaning liquid, the water inlet end of the water pump 821 is communicated with the water tank 822, and the water outlet end is communicated with the water inlet pipe 8, so that the cleaning liquid is continuously pumped into the water inlet pipe 8; during the cleaning stage, the water pump 821 is started, the cleaning liquid is introduced into the spray pipe 71, and the first spray head 711 and the second spray head 713 on the spray pipe 71 can spray the cleaning liquid.

[0078] The cleaning liquid can be industrial water, water with a certain temperature or water mixed with a cleaning agent, and the type of the cleaning liquid can be selected according to the type of the oil stain.

[0079] In the above, Figure 3 The air supply device 92 comprises a centrifugal fan 921 and an air filter assembly 922, the air filter assembly 922 is used for filtering fine particles in the air to ensure the cleanliness of the compressed air, the air inlet end of the centrifugal fan 921 is connected with the air filter assembly 922, and the air outlet end is connected with the air inlet pipe 9, so that the compressed air is continuously introduced into the air inlet pipe 9.

[0080] In summary, the present application realizes efficient self-cleaning through high-temperature steam dissolution and dynamic spray flushing, realizes rapid self-drying through high-temperature steam heat conduction and hot air blowing, and forms a closed-loop cleaning system.

[0081] In the flue gas purification stage, the two rotating mechanisms 2 drive the wind blades 3 to rotate, the uniform wind blades 31 are sequentially spliced to close the air inlets 11 and the air outlets 12, a continuous flow guide channel is formed, the flue gas enters the inside of the casing 1 from the uniform wind blades 31 of the air inlets 11, is purified by the cylindrical electrostatic field 4 and the plate-type electrostatic field, and is discharged from the uniform wind blades 31 of the air outlets 12.

[0082] Cleaning stage: the two rotating mechanisms 2 drive the fan blades 3 to rotate, and the sealing sheets 32 are spliced ​​in sequence to close the air inlet 11 and the air outlet 12, forming a closed cavity in the casing 1. The third control valve 104 on the third steam pipe 201 is opened, and steam enters the closed cavity through the second main pipe 102, the third steam pipe 201 and the multiple second steam pipes 20. The steam diffuses in the closed cavity and penetrates into the surface of the electrostatic electric field, the inner wall of the casing 1 and the air balancing blade 3, decomposing stubborn oil stains through the thermal melt effect; then, the water supply device 82 is opened, the first control valve 81 is opened, and the second control valve 91 is closed. The cleaning liquid passes through the water inlet pipe 8, the first main pipe 72, and the spray pipe 71 and is sprayed out by the first nozzle 711 and the second nozzle 713. The swing mechanism 6 drives the swing mechanism 6 to drive the spray pipe 71 to swing back and forth, and the translation mechanism 5 drives the spray pipe 71 to move axially. The composite motion trajectory causes the cleaning liquid sprayed from the first nozzle 711 and the second nozzle 713 to cover the cylindrical electrostatic electric field 4, the plate electrostatic electric field and the inner wall of the casing 1, achieving all-round and dead-angle flushing. Part of the cleaning liquid passes through the gaps in the electrostatic electric field and is flushed onto the air balancing blade 31 to clean the air balancing blade 31.

[0083] During the drying phase, the third control valve 104 on the fourth steam pipe 101 opens, allowing steam to enter the enclosed area 44 through the first manifold 72, the fourth steam pipe 101, and the multiple first steam pipes 10. The steam evaporates the cleaning liquid adhering to the inner wall of the anode cylinder 42 and the outer wall of the housing 41 through heat conduction. Simultaneously, the air supply device 92 switches to supply compressed gas, closing the first control valve 81 and opening the second control valve 91. The compressed gas is heated by the hot air treatment unit 30 to form high-temperature gas. This high-temperature gas passes through the air intake pipe 9, the first manifold 72, and the spray pipe 71, then is ejected from the first and second nozzles 711 and 713. Simultaneously, the first and second nozzles 711 and 713 move in a combined motion, evenly sweeping the electrostatic field and the inner wall of the housing 1, accelerating the evaporation of any remaining liquid droplets. Similarly, some of the high-temperature gas passes through the gaps in the electrostatic field and sweeps onto the air distribution plate 31, thereby drying the air distribution plate 31. Compared with existing technologies, the entire cleaning process significantly improves cleaning efficiency, shortens cleaning and drying time, and reduces equipment downtime through the synergistic effects of steam pyrolysis, dynamic flushing, steam drying and air sweep evaporation.

[0084] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. Oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions, characterized in that: include: The casing (1) is provided with an air inlet (11) and an air outlet (12) along the direction of smoke flow; Two rotating mechanisms (2) are respectively provided at an air inlet (11) and an air outlet (12); an output end of each rotating mechanism (2) is provided with a fan blade (3) that rotates around its own axis; each fan blade (3) comprises an air distribution piece (31) and a sealing piece (32) having an angle; when the air distribution pieces (31) of the plurality of fan blades (3) are spliced ​​in sequence, they are in a flue gas purification stage; when the sealing pieces (32) of the plurality of fan blades (3) are spliced ​​in sequence, they are in a self-cleaning and drying stage; At least one cylindrical electrostatic field (4) comprises a shell (41), a plurality of anode cylinders (42) and a cathode frame (43), all of the anode cylinders (42) are arranged inside the shell (41), and the two ends of each anode cylinder (42) are respectively connected to the two side walls of the shell (41), a closed area (44) is formed between the outer walls of all the anode cylinders (42) and the inner wall of the shell (41), and the axis of the anode cylinder (42) is coaxially arranged with the flow direction of the flue gas; the cathode frame (43) is mounted on the shell (41) through a plurality of insulators (45), and a plurality of cathode needles (46) are provided on the cathode frame (43), and each cathode needle (46) is correspondingly inserted into one anode cylinder (42); At least one cleaning device comprises a translation mechanism (5) provided on a housing (1), a swing mechanism (6) provided at an output end of the translation mechanism (5), and a spray rack (7) provided at an output end of the swing mechanism (6), wherein the spray rack (7) comprises a plurality of spray pipes (71) arranged in parallel and spaced apart, each spray pipe (71) being provided with a plurality of first spray heads (711) facing the anode cylinder (42); each spray pipe (71) is connected to a first main pipe (72), a water inlet pipe (8) and an air inlet pipe (9) being connected in parallel to the first main pipe (72), a first control valve (81) being provided on the water inlet pipe (8), and a water supply device (82) being connected at its end; a second control valve (91) being provided on the air inlet pipe (9), and a gas supply device (92) being connected at its end; a first steam pipe (10) mounted on the housing (41) and extending into the enclosed area (44); A drain pipe (411) is provided at the bottom of the housing (41) and extends into the enclosed area (44). A drain valve (412) is provided on the drain pipe (411); A plurality of second steam pipes (20) are evenly distributed on the top of the casing (1); all the second steam pipes (20) are connected to a third steam pipe (201); the third steam pipe (201) extends outside the casing (1); and the first steam pipe (10) and the third steam pipe (201) are both externally connected to a steam generating device.

2. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 1 is characterized in that: The rotating mechanism (2) comprises: A transmission shaft (21) is rotatably connected to the housing (1); a plurality of worms (22) are provided on the transmission shaft (21) along the axis thereof. A first motor (23) is provided on the housing (1), and an output end thereof is connected to the transmission shaft (21); The rotating shaft (24) is fixed on the fan blade (3) and is rotatably connected to the housing (1). A worm wheel (25) meshing with the worm (22) is provided at the end of the rotating shaft (24). The fan blade (3) is driven to rotate around the rotating shaft (24) through the transmission of the worm wheel (25) and the worm (22).

3. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 2 is characterized in that: The air distribution plate (31) and the sealing plate (32) have equal widths and an included angle of 60°; a line connecting the free ends of the two, the air distribution plate (31) and the sealing plate (32) together form an equilateral triangle structure, and the rotation axis (24) is located at the geometric center of the equilateral triangle structure.

4. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 1 is characterized in that: A sealing strip (33) is provided at the free end of the sealing sheet (32), and the sealing strip (33) extends along the length direction of the sealing sheet (32).

5. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 1 is characterized in that: The spray rack (7) comprises two parallel first vertical frames (73) and second vertical frames (74), the first vertical frames (73) and the second vertical frames (74) being respectively slidably connected to the housing (1); the two ends of the spray pipe (71) are respectively rotatably connected to the first vertical frame (73) and the second vertical frame (74), and the end is connected to the first main pipe (72) through a rotary joint (712); the swing mechanism (6) comprises a rocker (61) fixed on each spray pipe (71), a first cylinder (62) fixed on the first vertical frame (73), and a vertical rod (63) provided at the output end of the first cylinder (62); a waist hole (611) is provided on the rocker (61), and a first roller (64) is rotatably connected to the vertical rod (63), and the first roller (64) is slidably matched with the rocker (61).

6. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 5 is characterized in that: The side wall of the first stand (73) is provided with a side plate (731), and the side plate (731) is provided with a vertical slot (732); the translation mechanism (5) comprises a second motor (51) fixed on the housing (1), a turntable (52) provided at the output end of the second motor (51), and a slide column (53) provided at the edge of the turntable (52), and the slide column (53) is slidably connected to the vertical slot (732).

7. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 5 is characterized in that: The invention also includes a protective cover (13) arranged on the outer wall of the casing (1), the end of the spray pipe (71) is rotatably connected to the wall of the casing (1) and extends into the interior of the protective cover (13), the first stand (73), the swing mechanism (6) and the translation mechanism (5) are all located in the protective cover (13), and the second stand (74) is located in the casing (1).

8. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 1 is characterized in that: The first nozzles (711) are duckbill-shaped nozzles, and each of the spray pipes (71) is provided with two rows of first nozzles (711), and the two rows of first nozzles (711) are staggered with each other.

9. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 1 is characterized in that: At least one of the first steam pipes (10) is arranged on the top of the shell (41), a plurality of the first steam pipes (10) are connected to a fourth steam pipe (101), the third steam pipe (201) and the fourth steam pipe (101) are connected to a second main pipe (102), and a pressure gauge (103) is provided on the second main pipe (102).

10. The oil fume purification equipment with cylindrical electrostatic field self-cleaning and drying functions according to claim 1 is characterized in that: The air inlet pipe (9) is provided with a hot air processing unit (30), and the hot air processing unit (30) comprises a hot air box (301) arranged between the second control valve (91) and the air supply device (92), a plurality of heating components (302), and a plurality of partitions (303) arranged at intervals in the hot air box (301), wherein the partitions (303) cooperate to form a serpentine air duct (304), and each heating component (302) is correspondingly embedded in a partition (303).

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