Electrostatic oil smoke purifier with cleaning function

Abstract

The invention relates to an electrostatic oil fume purifier with a cleaning function, and belongs to the field of oil fume purification. Comprising a pretreatment device, an oil smoke purification device, a peculiar smell treatment device, a plurality of valve group devices, a spraying device and an ultrasonic output device which are sequentially arranged in the airflow direction; the lampblack purification device comprises a sealed electrostatic adsorption cavity and a polar plate assembly arranged in the electrostatic adsorption cavity; the plurality of valve group devices are configured to at least enable the electrostatic adsorption cavity to be at least switched between a water path flowing track and a gas path flowing track; the pretreatment device and the peculiar smell treatment device are located on the gas path flowing track. The spraying device and the ultrasonic output device are located on the flowing track of the water path. The electrostatic adsorption device has the beneficial effects that through the innovative water path / gas path switching design, the electrostatic adsorption device can automatically clean a core electrostatic adsorption polar plate assembly under the condition that manual disassembly is not needed.

Description

Technical Field

[0001] This invention relates to the field of oil fume purification, and more specifically to an electrostatic oil fume purifier with a cleaning function. Background Technology

[0002] With the booming development of my country's catering industry, restaurant fume pollution has become one of the important sources of urban air pollution. Restaurant fume is a complex mixture composed of grease, aerosols produced by the pyrolysis or cracking of organic matter, volatile organic compounds (VOCs), and particulate matter (PM), characterized by high emission concentrations, complex composition, and significant local pollution impact.

[0003] To address oil fume pollution, oil fume purification technology has evolved from simple physical separation to highly efficient composite purification. Early methods commonly employed mechanical or wet treatment technologies such as inertial separation, filtration adsorption, and water film washing. While these methods were simple in structure and low in cost, they generally suffered from limited purification efficiency, high system resistance, and the potential for secondary pollution (such as wastewater and waste filter media), making it difficult to meet increasingly stringent environmental emission standards.

[0004] Electrostatic precipitator technology for oil fume purification has gradually become the mainstream in the market due to its advantages such as high efficiency, low resistance, and ability to handle aerosols. Its principle is to use a high-voltage electric field to charge oil fume droplets, which are then adsorbed onto the dust collection plates under the influence of the electric field. Simultaneously, the ozone generated by the high-voltage discharge can oxidize some VOCs. However, this technology faces a critical bottleneck in long-term operation: oil and grease continuously accumulate on the surface of the dust collection plates, leading to a weakening of the electric field strength and a decrease in discharge efficiency, ultimately resulting in a significant decline in purification performance and even posing a fire hazard. Traditional solutions rely on periodic manual disassembly and cleaning, a process that is not only time-consuming and labor-intensive, affecting continuous equipment operation, but also prone to incomplete cleaning and safety hazards. This leads to the failure of many devices due to poor maintenance, making it impossible to guarantee long-term stable emission standards. Summary of the Invention

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide an electrostatic fume purifier with a cleaning function, comprising: a pretreatment device, a fume purification device, an odor treatment device, multiple valve groups, a spray device, and an ultrasonic output device arranged sequentially along the airflow direction; the fume purification device includes a sealed electrostatic adsorption cavity and an electrode assembly disposed therein; the multiple valve groups are configured to switch the electrostatic adsorption cavity at least in a water flow path and at least in the air flow path; the pretreatment device and the odor treatment device are located in the air flow path; the spray device and the ultrasonic output device are located in the water flow path.

[0007] Furthermore, the fume purification device also includes a drive mechanism and a guide rail mechanism; the guide rail mechanism is connected to the electrode plate assembly, and the drive mechanism drives the electrode plate assembly to reciprocate on the guide rail mechanism.

[0008] Furthermore, a heating device is also provided inside the electrostatic adsorption cavity, which is used to heat the water path when the electrostatic adsorption cavity is located in the water flow trajectory.

[0009] Furthermore, an air injection device is also provided inside the electrostatic adsorption cavity, which is used to inject air into the water path when the electrostatic adsorption cavity is located in the water flow trajectory.

[0010] Further, the air injection device includes: an injection cannula and an elastic bladder disposed inside the injection cannula; the elastic bladder is provided with a plurality of vent holes, and the internal space of the injection cannula is connected to the electrostatic adsorption cavity through the vent holes; an air injection pump is connected to the outside of the injection cannula; the air injection pump injects air into the injection cannula, and the air injection pump increases the pressure in the injection cannula to the point that the elastic bladder protrudes outward at the end of the injection cannula and at least to the middle of the electrostatic adsorption cavity.

[0011] Furthermore, the injection cannula is located at the top of the electrostatic adsorption cavity; the electrode assembly includes multiple high-voltage electrodes and multiple adsorption electrodes; multiple sets of injection cannulas are provided, and each set of injection cannulas is located between any two high-voltage electrodes and / or between any two adsorption electrodes.

[0012] Furthermore, the injection cannula is located above the electrode assembly and is separate from the electrode assembly.

[0013] Furthermore, the injection cannula includes a first segment and a second segment; the first segment and the second segment are threadedly connected; the first segment has a connecting flange with a diameter smaller than that of the first segment, and the elastic bladder is connected to the connecting flange; the length of the second segment is longer than the length of the elastic bladder before inflation, so that the elastic bladder is located inside the injection cannula.

[0014] Furthermore, a water pump body is connected externally to the injection cannula.

[0015] Furthermore, the second tube segment is a telescopic tube, and the elastic bladder is fixed to the port of the telescopic tube.

[0016] The beneficial effects of this invention are: Through an innovative water / air switching design, the equipment can automatically clean the core electrostatic adsorption electrode assembly without manual disassembly.

[0017] The cleaning process comprehensively utilizes spray pre-washing, soaking, ultrasonic cavitation, electrode mechanical movement, heating assistance, and bubble scrubbing to form a synergistic cleaning effect.

[0018] The instantaneous high-pressure impact generated by ultrasonic cavitation combined with the fluid shearing force brought about by the reciprocating motion of the electrode plate can effectively remove stubborn oil stains. The cleaning effect far exceeds that of traditional single cleaning methods, fundamentally solving the problem of reduced efficiency of electrostatic purification equipment due to oil accumulation.

[0019] Through multiple valve groups, the entire process from fume purification and automatic cleaning to drying is fully automated. The equipment can automatically complete a series of actions, including liquid injection, cleaning, drainage, drying, and resetting, during non-working hours, without any manual intervention. This significantly reduces the frequency, intensity, and cost of manual maintenance, and also prevents performance degradation caused by untimely or unprofessional maintenance, ensuring long-term stable operation.

[0020] Inflation causes the elastic bladder to expand and bulge, releasing a large number of fine air bubbles to physically scrub the electrode plates. Simultaneously, the reciprocating motion of the electrode plate assembly allows it to contact the bladder, producing an additional wiping effect. The uninflated elastic bladder can retract and be concealed within the injection cannula, completely preventing interference with the high-voltage electrostatic field or creating safety hazards, thus ensuring the high efficiency and safety of the purification process.

[0021] The slide rail and drive mechanism design of the electrode assembly not only assists in cleaning but also facilitates movement during maintenance. The heating device accelerates the separation of oil from the electrode plates. The combination of overflow and vent holes ensures safe control of the liquid level and complete discharge of waste liquid.

[0022] Regular, automatic, thorough cleaning prevents the long-term accumulation of oil on the plates, reducing the risk of fire caused by excessive oil. The automatic drying function ensures that the plates and internal circuitry quickly return to a dry state after cleaning, preventing short circuits or corrosion and significantly improving the electrical safety and overall lifespan of the equipment. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0024] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0025] In the attached diagram: Figure 1 A schematic diagram based on an embodiment of this application; Figure 2 This is a structural schematic diagram as part of an embodiment, mainly showing an observation from another angle. Figure 1 The structure; Figure 3 This is a structural schematic diagram of a part of the embodiment, mainly showing the electrostatic adsorption cavity and some of the internal and external structures of the electrostatic adsorption cavity; Figure 4 This is a structural schematic diagram as part of an embodiment, mainly showing an observation from another perspective. Figure 3 The structure; Figure 5 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the guide rail mechanism and some surrounding parts; Figure 6 This is a structural schematic diagram as part of an embodiment, mainly showing the positional distribution structure of multiple valve assembly devices; Figure 7 This is a structural schematic diagram as part of an embodiment, mainly showing an observation from another perspective. Figure 6 The structure; Figure 8 This is a structural diagram of a part of an embodiment, mainly showing the structure of the injection cannula; Figure 9 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the drive mechanism and the slider.

[0026] The annotations in the attached figures are explained as follows: 1. Air inlet duct; 2. Pretreatment device; 3. Electrostatic adsorption chamber; 31. Guide rail mechanism; 32. Slider; 33. Support frame; 34. Drive mechanism; 35. Overflow hole; 36. Vent hole; 4. Electrode assembly; 41. High-voltage electrode plate; 42. Adsorption electrode plate; 5. Air injection device; 51. Injection tube; 511. First pipe section; 512. Second pipe section; 52. Connecting flange; 53. Elastic bag; 531. Exhaust hole; 54. Air injection pump body; 6. Discharge pipeline; 7. Valve assembly; 71. First valve; 72. Second valve; 73. Third valve; 74. Fourth valve; 75. Fifth valve; 76. Sixth valve; 8. Odor treatment device; 9. Filter cotton. Detailed Implementation

[0027] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0028] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0030] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figures 1-9As shown, the electrostatic fume purifier with cleaning function of the present invention includes: a pretreatment device 2, a fume purification device, an odor treatment device 8, multiple valve groups 7, a spray device, and an ultrasonic output device arranged sequentially along the airflow direction. The fume purification device includes a sealed electrostatic adsorption chamber 3 and an electrode assembly 4 disposed therein. The sealed electrostatic adsorption chamber 3 is formed by the space inside the fume treatment cabinet. Two opposite end faces of the fume treatment cabinet are openings, allowing fumes to enter and exit through these openings. The fumes pass through the electrode assembly 4 and are adsorbed and removed by the electrode assembly 4. One opening is connected to a fume duct, and the other opening is connected to an exhaust pipe 6. A fan is installed in the exhaust pipe 6 to allow air carrying fumes to be adsorbed and electrostatically adsorbed as it passes through the electrode assembly 4. The multiple valve groups 7 are configured to switch the electrostatic adsorption chamber 3 between a water flow path and an air flow path. When the electrostatic adsorption chamber 3 is in the airflow path, it draws in oily air, which is then adsorbed by the electrode assembly 4, and the oily air is discharged without oil. When the electrostatic adsorption chamber 3 is in the waterflow path, a spray device sprays water into it, submerging the electrode assembly 4 and cleaning it. The sound output device uses an ultrasonic instrument.

[0033] When the electrostatic adsorption chamber 3 is located in the air flow path, the electrode assembly 4 can also be in a stopped state. Then, external air continuously flows through the electrostatic adsorption chamber 3 to dry the water-washed electrode assembly 4.

[0034] The pretreatment device 2 and the odor treatment device 8 are located in the airflow path; the spray device and the ultrasonic output device are located in the waterflow path. The ultrasonic device utilizes ultrasonic waves to generate alternating positive and negative pressure waves in the liquid: the negative pressure half-cycle forms a vacuum cavity and generates bubbles, and the positive pressure half-cycle causes the bubbles to burst, generating an instantaneous high-pressure impact force of thousands of atmospheres, which, combined with the scouring force formed by sound wave reflection, peels off oil stains from the electrode plate surface. Both the pretreatment device 2 and the odor treatment device 8 treat air containing oil fumes. The pretreatment device 2 intercepts large particles of dust or oil fumes in the air before it enters the electrostatic adsorption chamber 3. The odor treatment is performed when the air is discharged after being treated in the electrostatic adsorption chamber 3.

[0035] The pretreatment device 2 can use a filter screen, which is located at the air inlet of the electrostatic adsorption chamber 3. The odor treatment device 8 can use activated carbon, which is located at the air outlet of the electrostatic adsorption chamber 3.

[0036] The multiple valve assembly 7 consists of a first valve 71, a second valve 72, a third valve 73, a fourth valve 74, a fifth valve 75, and a sixth valve 76. This allows external air to pass sequentially through the first valve 71, the pretreatment device 2, the second valve 72, the electrostatic adsorption chamber 3, the third valve 73, activated carbon, and the fourth valve 74, thus treating the oily air. Alternatively, external air can pass sequentially through the first valve 71, the pretreatment device 2, the second valve 72, the electrostatic adsorption chamber 3, the fifth valve 75, the filter cotton 9, and the sixth valve 76, thus drying the water-cleaned electrode assembly 4.

[0037] In addition, an overflow hole 35 and a vent hole 36 are provided on the electrostatic adsorption chamber 3. The overflow hole 35 is located at the upper part of the electrostatic adsorption chamber 3, and the vent hole 36 is located at the bottom of the electrostatic adsorption chamber 3. The overflow hole 35 is used to overflow excess water from the electrostatic adsorption chamber 3, and the vent hole 36 is used to drain water from the electrostatic adsorption chamber 3 after the electrode assembly 4 has been cleaned.

[0038] Specifically, the fume purification device further includes a drive mechanism 34 and a guide rail mechanism 31; the guide rail mechanism 31 is connected to the electrode assembly 4, and the drive mechanism 34 drives the electrode assembly 4 to reciprocate on the guide rail mechanism 31. The guide rail mechanism 31 includes a linear guide rail, a slider 32, and a support frame 33. The linear guide rail is located on the bottom surface of the electrostatic adsorption cavity 3, the slider 32 is slidably connected to the guide rail, the support frame 33 is located on the slider 32, and the electrode assembly 4 is mounted on the support frame 33. The drive structure adopts an electric push rod, which is connected to the support frame 33, and the electric push rod drives the support frame 33 to move.

[0039] Specifically, a heating device is also provided inside the electrostatic adsorption cavity 3. This heating device is used to heat the water flow path when the electrostatic adsorption cavity 3 is located within the water flow path. The heating device employs conventional technology, such as heating wires, heating tubes, or heating copper rods. The heating device heats the liquid in the electrostatic adsorption cavity 3 to 35°C, facilitating the separation of oil from the electrode assembly 4.

[0040] Specifically, the electrostatic adsorption cavity 3 is also equipped with an air injection device 5, which is used to inject air into the water path when the electrostatic adsorption cavity 3 is located in the water flow path. That is, when water is present in the electrostatic adsorption cavity, air is injected into the water, and the air will form bubbles in the water. As a result, bubbles are continuously generated in the water, which can further improve the separation effect of oil and electrode assembly 4.

[0041] Specifically, the air injection device 5 includes: an injection tube 51 and an elastic bladder 53 disposed inside the injection tube 51; the elastic bladder 53 is provided with multiple vent holes 531, and the internal space of the injection tube 51 is connected to the electrostatic adsorption cavity 3 through the vent holes 531; the injection tube 51 is externally connected to an air injection pump body 54; the air injection pump body 54 injects air into the injection tube 51, and the air injection pump body 54 increases the pressure in the injection tube 51 until the elastic bladder 53 protrudes outward from the end of the injection tube 51 and at least to the middle of the electrostatic adsorption cavity 3. The injection tube 51 is located at the top of the electrostatic adsorption cavity 3; the electrode assembly 4 includes multiple high-voltage electrodes 41 and multiple adsorption electrodes 42; multiple sets of injection tubes 51 are provided, and multiple sets of injection tubes 51 are located between any two high-voltage electrodes 41 and / or between any two adsorption electrodes. The injection cannula 51 is located above the electrode assembly 4 and is separate from the electrode assembly 4.

[0042] The injection cannula 51 is inserted into the electrostatic adsorption chamber 3 from the top. By positioning the injection cannula 51 above the electrode assembly 4, it ensures that the injection cannula 51 does not interfere with the daily use of the electrode assembly 4, avoiding any impact on its electric field or voltage. When the air injection cannula needs to inject air into the water within the electrostatic adsorption chamber 3, the elastic bag 53 allows air to be injected directly into the water. This not only effectively improves the cleaning effect on the electrode assembly 4 but also avoids affecting the adsorption of oil and dirt by the electrode assembly 4.

[0043] In addition, since the drive mechanism 34 and the guide rail mechanism 31 will also move the electrode assembly 4 in the electrostatic adsorption cavity 3, the high voltage electrode 41 and the electrostatic adsorption electrode 42 in the electrode assembly 4 will come into contact with the elastic bag 53. The elastic bag 53 can play the role of contact friction cleaning of the electrode assembly 4, further improving the cleaning effect of the electrode assembly 4.

[0044] Specifically, the injection cannula 51 includes a first section 511 and a second section 512; the first section 511 and the second section 512 are threadedly connected; the first section 511 has a connecting flange 52 with a diameter smaller than the first section 511, and the elastic bladder 53 is connected to the connecting flange 52; the length of the second section 512 is longer than the length of the elastic bladder 53 before inflation, so that the elastic bladder 53 is located inside the injection cannula 51. This design conceals the elastic bladder 53 inside the injection cannula 51, further preventing any objects from entering the electrode assembly 4 and better ensuring the normal operation of the electrode assembly 4.

[0045] Specifically, a water pump is externally connected to part of the injection tube 51. The spraying device can be a spray pipe located on the side of the electrostatic adsorption chamber 3, with the water pump externally connected to the spray pipe. The water pump is externally connected to a water source or a cleaning solution. The external water pump connected to part of the injection tube 51 allows water to be injected into the electrostatic adsorption chamber 3 from multiple angles. For example, some water gradually fills the chamber from bottom to top, while some water is injected between any two electrostatic adsorption plates 42 or any two high-voltage plates 41. During the water injection process, the elastic bag 53 acts as a moistened wiping agent, contacting and wiping the plate assembly 4, further improving the cleaning effect on the plates.

[0046] In other embodiments, the second tube segment 512 is a telescopic tube, and the elastic bladder 53 is fixed to the port of the telescopic tube. The telescopic tube expands and contracts as the elastic bladder 53 expands, thus protecting the elastic bladder 53 in certain locations. For example, when the electrostatic adsorption plate 42 or the high-voltage plate 41 has an uneven surface, or has burrs or serrations, the telescopic design of the second tube segment 512 protects the elastic bladder 53.

[0047] In some specific embodiments, the spraying device includes multiple spray pipes, and a water pump body is connected to each spray pipe. In other specific cases, multiple spray pipes are distributed in the high-voltage plate 41 and the electrostatic adsorption plate 42, and penetrate through both the high-voltage plate 41 and the electrostatic adsorption plate 42.

[0048] The operation of this equipment mainly revolves around three working modes: "oil fume purification," "automatic cleaning," and "rapid drying," which are controlled by switching valve group device 7. (a) Fume purification mode (gas flow trajectory) Valve status: First valve 71, second valve 72, third valve 73, and fourth valve 74 are open; fifth valve 75, sixth valve 76, and vent 36 are closed; overflow 35 is normally closed.

[0049] Airflow and purification process: Under the action of the fan, the oily fume-laden air flows sequentially through: first valve 71 → pretreatment device 2 (filtering large particles) → second valve 72 → inlet of electrostatic adsorption chamber 3. The airflow passes through the electrode assembly 4 inside the chamber, and the oily fume particles are adsorbed under the action of the high-voltage electrostatic field. The purified air is discharged after passing through the outlet, third valve 73, odor treatment device 8 (such as activated carbon), and fourth valve 74. In this mode, the electrode assembly 4 is stationary, and the drive mechanism 34, spray, ultrasonic, heating, and air injection devices 5 are all inactive.

[0050] (ii) Automatic cleaning mode (water flow trajectory) Valve status: Second valve 72, third valve 73, and fifth valve 75 are closed, cutting off the external gas path. Vent hole 36 is closed, and overflow hole 35 is opened.

[0051] Activate the spray device to spray clean water or cleaning solution into the electrostatic adsorption chamber 3. The liquid gradually accumulates until it completely submerges the electrode assembly 4 and overflows from the overflow hole 35, forming an immersion state. Optionally, activate the heating device to heat the liquid to a set temperature (such as 35°C or higher) to reduce the viscosity of the oil.

[0052] The ultrasonic output device is activated to generate a cavitation effect in the liquid, which causes microscopic impact on the surface of the electrode plate.

[0053] The drive mechanism 34 is activated synchronously, causing the support frame 33 and the entire electrode plate assembly 4 mounted on it to slowly reciprocate along the bottom linear guide rail. This movement intensifies liquid turbulence, making cleaning more uniform, and generates fluid shear force to assist in the removal of oil stains.

[0054] The air injection pump 54 is activated, forcing air into the injection cannula 51. The increased pressure inside the cannula forces the elastic bladder 53 to expand outwards from the cannula opening, extending into the space between the electrode array. Air is continuously released in the form of bubbles through the vent holes 531 on the bladder, and the rising bubble flow physically scours the electrode surface. During the reciprocating motion of the electrode assembly 4, the electrode may come into contact with and rub against the expanded elastic bladder 53, creating a dynamic wiping effect.

[0055] After cleaning, turn off the ultrasonic cleaner, drive mechanism 34, and air injection device 5. Open the vent valve 36 at the bottom to completely drain the oily wastewater from the cavity.

[0056] (III) Rapid Drying Mode Valve status: Valve 71 (first valve), 72 (second valve), 75 (fifth valve), and 76 (sixth valve) are open. Valve 73 (third valve) and 74 (fourth valve) are closed.

[0057] Turn on the fan. At this time, the outside air is drawn in by the fan and forms a new drying air path: air → first valve 71 → pretreatment device 2 → second valve 72 → electrostatic adsorption chamber 3 → fifth valve 75 → filter cotton unit 9 → sixth valve 76 → discharge.

[0058] Airflow continuously blows across the damp surface of the electrode assembly 4, carrying away moisture. During this process, the drive mechanism 34 can be restarted to cause the electrode assembly 4 to perform small-amplitude reciprocating motions, changing the relative angle between different parts of the electrode and the airflow, accelerating moisture evaporation, and achieving uniform and rapid drying. The filter cotton unit 9 adsorbs any moisture and trace oil droplets that may be trapped in the air.

[0059] After drying is complete, all devices stop working, and the valves can be reset according to the preset state. The equipment returns to standby mode or prepares to switch back to the fume purification mode.

[0060] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An electrostatic oil fume purifier with a cleaning function, characterized in that, include: The pretreatment device, fume purification device, odor treatment device, multiple valve groups, spray device and ultrasonic output device are arranged sequentially along the airflow direction. The fume purification device includes a sealed electrostatic adsorption chamber and an electrode assembly disposed therein. The plurality of valve assembly devices are configured to switch the electrostatic adsorption chamber at least in the water flow path and at least in the air flow path; The pretreatment device and the odor treatment device are located in the air flow path; the spray device and the ultrasonic output device are located in the water flow path.

2. The electrostatic oil fume purifier with cleaning function according to claim 1, characterized in that: The fume purification device also includes a drive mechanism and a guide rail mechanism; the guide rail mechanism is connected to the electrode plate assembly, and the drive mechanism drives the electrode plate assembly to reciprocate on the guide rail mechanism.

3. The electrostatic oil fume purifier with cleaning function according to claim 2, characterized in that: The electrostatic adsorption cavity is also equipped with a heating device, which is used to heat the water flow path when the electrostatic adsorption cavity is located in the water flow path.

4. An electrostatic oil fume purifier with cleaning function according to claim 2, characterized in that: The electrostatic adsorption cavity is also equipped with an air injection device, which is used to inject air into the water path when the electrostatic adsorption cavity is located in the water flow trajectory.

5. An electrostatic oil fume purifier with cleaning function according to claim 4, characterized in that: The gas injection device includes an injection cannula and an elastic bladder disposed inside the injection cannula; The elastic bag is provided with multiple vent holes, and the internal space of the injection cannula is connected to the electrostatic adsorption cavity through the vent holes; The injection cannula is externally connected to an air injection pump; the air injection pump injects air into the injection cannula, increasing the pressure in the injection cannula until the elastic bladder protrudes outward from the end of the injection cannula and at least to the middle of the electrostatic adsorption cavity.

6. An electrostatic oil fume purifier with cleaning function according to claim 5, characterized in that: The injection cannula is located at the top of the electrostatic adsorption cavity; The electrode assembly includes multiple high-voltage electrodes and multiple adsorption electrodes; The injection cannulas are provided in multiple sets, and each set of injection cannulas is located between any two high-voltage plates and / or between any two adsorption plates.

7. An electrostatic oil fume purifier with cleaning function according to claim 6, characterized in that: The injection cannula is located above the electrode assembly and is separate from the electrode assembly.

8. An electrostatic oil fume purifier with cleaning function according to claim 5, characterized in that: The injection cannula includes a first tube segment and a second tube segment; the first tube segment and the second tube segment are threadedly connected. The first tube segment has a connecting flange with a diameter smaller than that of the first tube segment, and the elastic bladder is connected to the connecting flange; the length of the second tube segment is longer than the length of the elastic bladder before inflation, so that the elastic bladder is located inside the injection cannula.

9. An electrostatic oil fume purifier with cleaning function according to claim 8, characterized in that: The injection tube is connected to an external water pump body.

10. An electrostatic oil fume purifier with cleaning function according to claim 8, characterized in that: The second tube segment is a telescopic tube, and the elastic bladder is fixed to the port of the telescopic tube.

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