CN113124437B - High-voltage electrostatic purifying device and range hood - Google Patents

High-voltage electrostatic purifying device and range hood Download PDF

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Publication number
CN113124437B
CN113124437B CN202110269752.8A CN202110269752A CN113124437B CN 113124437 B CN113124437 B CN 113124437B CN 202110269752 A CN202110269752 A CN 202110269752A CN 113124437 B CN113124437 B CN 113124437B
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CN
China
Prior art keywords
polar plate
purification device
voltage electrostatic
electrostatic purification
filter screen
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CN202110269752.8A
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Chinese (zh)
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CN113124437A (en
Inventor
胡承杰
张鲁涛
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN202110269752.8A priority Critical patent/CN113124437B/en
Publication of CN113124437A publication Critical patent/CN113124437A/en
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Publication of CN113124437B publication Critical patent/CN113124437B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/011—Prefiltering; Flow controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/09—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/36—Controlling flow of gases or vapour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrostatic Separation (AREA)

Abstract

The invention relates to a high-voltage electrostatic purification device which comprises a through frame and a polar plate assembly arranged in the frame, wherein the polar plate assembly comprises a first polar plate and a second polar plate which have different polarities and are alternately arranged at intervals, the first polar plate and the second polar plate are arranged in parallel and extend along the air inlet direction, a first filter screen is arranged on an air inlet of the frame, and sharp teeth are arranged on the edge of one end, facing the first filter screen, of the first polar plate. The invention also relates to a range hood, which comprises a casing, a fan system arranged in the casing and a high-voltage electrostatic purification device, wherein the high-voltage electrostatic purification device is arranged on an oil fume channel of the casing, and the high-voltage electrostatic purification device is arranged at an air inlet end or an air outlet end of the fan system. The high-voltage electrostatic purification device has better ionization charge capacity, can perform pre-filtration and can uniformly intake air. The range hood applying the high-voltage electrostatic purification device has better oil fume purification capacity under the condition of keeping the power unchanged.

Description

High-voltage electrostatic purifying device and range hood
Technical Field
The invention relates to a high-voltage electrostatic purification device and a range hood applying the high-voltage electrostatic purification device.
Background
In order to protect the environment, a filtering device is usually disposed in the smoke treatment device to filter the external exhaust flow and reduce the smoke concentration in the external exhaust flow. If a high-voltage electrostatic purification device is arranged in a range hood, the high-voltage electrostatic purification device is internally provided with an ionization area positioned at an air inlet end and a dust collection area positioned at the downstream of the ionization area, so that oil fume particles in air flow passing through the ionization area of the high-voltage electrostatic purification device are charged under the ionization action, and then the charged oil fume particles are adsorbed on a polar plate under the action of an electric field of the dust collection area when passing through the dust collection area, thereby achieving the purpose of separating oil mist in the externally discharged oil fume and reducing the pollution to the external environment.
For example, the purification device disclosed in the patent of "a plate and wire integrated purification device" in the chinese utility model with the publication number of CN210157414U (application number of 201920178755.9) directly connects the polar wire to the polar plate with one polarity, thereby avoiding space waste and being suitable for products with strict requirements on space. Although the distance of the dust collecting area is increased to a certain extent, the dust collecting effect under a small space is improved, the distance of the ionization area of the purification device with the structure is still relatively short, so that the charging capacity of passing oil smoke particles is weak, and particularly when the oil smoke passes through a concentrated cross section area of the purification device, the good ionization effect on the oil smoke particles cannot be ensured, so that the purification capacity of the oil smoke is limited. In order to improve the capacity of charging the soot particles, since the charging capacity of one electrode wire is relatively fixed, the charging capacity can be realized only by increasing the distance of the ionization region and increasing the electrode wires. This kind of solution can not only lead to the increase of power because of the increase of utmost point silk, also can lead to the reduction of dust collecting area distance simultaneously, influences the cleaning power to the oil smoke granule.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a high-voltage electrostatic purification device, which has better ionization charge capacity, can perform pre-filtration, and can uniformly supply air, in view of the above prior art.
The second technical problem to be solved by the present invention is to provide a range hood with better oil smoke purification capability under the condition of keeping the power unchanged.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the high-voltage electrostatic purification device comprises a through frame and a polar plate assembly arranged in the frame, wherein the polar plate assembly comprises a first polar plate and a second polar plate which have different polarities and are alternately arranged at intervals, and the high-voltage electrostatic purification device is characterized in that: the first polar plate and the second polar plate are arranged in parallel and extend along the air inlet direction, a first filter screen is arranged on the air inlet of the frame, and sharp teeth are arranged on the edge of one end, facing the first filter screen, of the first polar plate.
In order to avoid the situation of breakdown between the sharp teeth of the first polar plate and the first filter screen, the shortest distance between the end parts of the sharp teeth and the first filter screen is A, the shortest distance between the end parts of the sharp teeth and the second polar plate is B, and A is larger than or equal to B.
In order to further improve the purification capacity, a second filter screen is arranged on the air outlet of the frame.
In order to effectively trap the particles in the air flow and avoid the particles covering the sharp teeth, the sharp teeth are arranged facing the net strip part of the first filter net.
Preferably, an opening is formed in the area, facing the air inlet end of the second polar plate, of the first polar plate, and a spine portion is arranged on the peripheral wall of the opening.
In order to improve the charge capacity on the basis of ensuring the strength of the first polar plate, at least two openings are formed in the first polar plate in the width direction.
Preferably, the spikes on the opposite side peripheral walls of the opening are alternately arranged.
Conveniently install the ground, each first polar plate links together through the first body of rod, and each second polar plate links together through the second body of rod, and the equal fixed connection in both ends of the first body of rod, the second body of rod is on the frame.
Each first polar plate is provided with a first through hole for the second rod body to pass through, and each second polar plate is provided with a second through hole for the first rod body to pass through.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides a range hood, includes casing, the fan system of setting in the casing, its characterized in that: the high-voltage electrostatic purification device is arranged on the oil fume channel of the machine shell.
Optionally, the high-voltage electrostatic purification device is arranged at an air inlet end or an air outlet end of the fan system.
Preferably, the casing is connected with an air outlet cover, the air outlet cover is arranged at an air outlet end of the fan system, and the high-voltage electrostatic purification device is arranged in the air outlet cover.
Compared with the prior art, the invention has the advantages that: according to the high-voltage electrostatic purification device, the first filter screen is arranged, particulate pollutants such as dust and oil smoke in passing air flow can be preliminarily filtered, meanwhile, the air quantity on the cross section of the air inlet of the frame can be uniform under the action of the first filter screen, even if the air inlet area of the air flow is concentrated, the distribution area of the air inlet can be effectively uniform, and the purification effect of the air flow passing through the high-voltage electrostatic purification device is improved. On this basis, utilize the ionization between first polar plate and the first filter screen, can make the particulate matter in the air current get into can carry out the electric charge effect behind high-voltage static purifier's the frame and electrified, so the unchangeable condition of air inlet route distance at high-voltage static purifier, ionization effect through between first polar plate and the first filter screen has increased the distance in ionization region, ionization electric charge capacity has been improved, also need not to shorten the distance in low reaches collection dirt region, and then make the particulate matter in the air current can carry out abundant ionization, and can be fully purified, purifying effect is better.
The range hood applying the high-voltage electrostatic purification device can have better oil fume purification capacity under the condition of keeping the power unchanged.
Drawings
Fig. 1 is a perspective view of a high-voltage electrostatic purification apparatus according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of the high-voltage electrostatic purification apparatus according to the embodiment of the present invention.
Fig. 3 is a sectional view of the high-voltage electrostatic purification apparatus according to the embodiment of the present invention.
Fig. 4 is a perspective view of a first plate in an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The high-voltage electrostatic purification device in this embodiment can be applied to an electrical appliance such as an air conditioner, an air purifier, a range hood, etc., and the range hood is taken as an example in this embodiment, and the high-voltage electrostatic purification device and the range hood to which the high-voltage electrostatic purification device is applied are explained in detail.
The range hood in this embodiment includes the casing and sets up the fan system in the casing, and the rear end of fan system is provided with out the fan housing to the oil smoke that supplies to pass through after the fan filters discharges through this play fan housing. This high-voltage static purifier can set up the front end at fan system or the rear end of fan system as required, guarantees that this high-voltage static purifier sets up on the outer winding displacement way of oil smoke, and then realizes the purification effect to the oil smoke. In this embodiment, the high-voltage electrostatic purification device can be preferably disposed at the rear end of a fan system of the range hood, and further purifies the oil smoke processed by the fan system to capture fine oil smoke particles in the discharged smoke, so as to enhance the purification degree of the discharged smoke and reduce the pollution to the air. Specifically, this high-voltage static purifier installs in the air-out cover, neither additionally occupies range hood's casing internally mounted space, also can realize the further purification to the oil smoke.
In order to ensure the normal operation of the range hood, a power control panel is usually provided in the range hood to control the range hood to operate and provide power for the operation of the range hood, and simultaneously, electric energy is provided for the operation of the high-voltage electrostatic purification device. In order to realize the high-voltage electrostatic purification function, a boosting circuit board is arranged in the range hood at the same time so as to boost the power supply voltage and further supply the boosted power supply voltage to the high-voltage electrostatic purification device for working.
As shown in fig. 1 to 4, the high voltage electrostatic cleaning apparatus in the present embodiment includes a frame 1 penetrating therethrough, and a pole plate assembly disposed in the frame 1.
The frame 1 is disposed through, in this embodiment, the cross section of the frame 1 is rectangular, that is, the frame 1 is surrounded by four side plates, the opening at one end of the frame 1 faces the air inlet direction, the opening of the frame 1 forms an air inlet, and the other opening of the frame 1 forms an air outlet.
The air inlet of the frame 1 is covered with a first filter screen 4, the first filter screen 4 is formed by interlacing mesh strips, and mesh holes are formed among the mesh strips for air flow to pass through. The first filter 4 is made of various metal meshes capable of conducting electricity in the prior art. The first filter screen 4 can pre-filter the oil smoke particles in the air flow entering the high-voltage electrostatic purification device, and the purification capacity is improved. The air outlet of the frame 1 can be covered with a second filter screen 5 according to the requirement.
The polar plate assembly comprises a first polar plate 2 and a second polar plate 3 which have different polarities and are alternately arranged at intervals, and the first polar plate 2 and the second polar plate 3 are arranged in parallel and extend along the air inlet direction. The first electrode plate 2 and the second electrode plate 3 are made of metal plates capable of conducting electricity. Each first polar plate 2 is connected together through the first body of rod 6, and each second polar plate 3 is connected together through the second body of rod 7, and the both ends of first body of rod 6, the second body of rod 7 are all fixed connection on frame 1. Each first polar plate 2 is provided with a first through hole 24 for the second rod 7 to pass through, and each second polar plate 3 is provided with a second through hole 31 for the first rod 6 to pass through. The first rod body 6 and the second rod body 7 can be arranged in a plurality of numbers as required, and are connected with the first polar plates 2 and the second polar plates 3 in an evenly distributed state, so that the connection stability of the first polar plates 2 and the second polar plates 3 is ensured.
The area of the first polar plate 2 facing the air inlet end of the second polar plate 3 is provided with an opening 22, and the peripheral wall of the opening 22 is provided with a spike part 23. In order to ensure sufficient charging capacity while ensuring the strength of the first electrode plate 2, the number of the spine portions 23 needs to be ensured, and at least two openings 22 are provided in the width direction of the first electrode plate 2. In the present embodiment, five strip-shaped openings 22 are provided in the first plate 2 in the width direction, and each opening 22 is provided with a spike 23 in the circumferential direction. And the spine parts 23 on the two opposite side peripheral walls of the opening 22 are arranged alternately, so that the density of the spine parts 23 is improved, and the charging effect on the particles in the air is further improved. In the high-voltage electrostatic purification device, the area corresponding to the opening 22 of the air inlet end of the first polar plate 2 forms the ionization area of the high-voltage electrostatic purification device, and the downstream part of the area forms the dust collecting area. The particulate matters in the airflow entering the high-voltage electrostatic purification device are charged in the ionization region through ionization, and when the charged particulate matters pass through the dust collection region, the charged particulate matters are adsorbed on the first polar plate 2 or the second polar plate 3 under the action of an electric field between the first polar plate 2 and the second polar plate 3, so that the airflow purification effect is achieved. If set up second filter screen 5, then when the air current was exported from high-voltage electrostatic purification device, particulate matter in the air current can further adsorb on second filter screen 5, and then reach further filter effect.
In addition, the edge of one end of the first polar plate 2 facing the first filter screen 4 in this embodiment is provided with sharp teeth 21. When the electric dust collector works, high-voltage electricity can be introduced to the first polar plate 2, the front ends of the sharp teeth 21 can generate a discharging effect, so that electric charge movement exists between the front ends of the sharp teeth 21 and the first filter screen 4, and particulate matters in air flow entering from the first filter screen 4 can start to be charged when passing through the area between the sharp teeth 21 and the first filter screen 4, so that the distance of an ionization area is actually increased, the distance of a downstream dust collection area can not be influenced, the filtering capacity is increased while the charging capacity is enhanced, and under the uniform dispersion effect of the first filter screen 4 on the air flow, more particles in the air flow can be charged, and the filtering and purifying effects are further increased.
The tines 21 are arranged facing the web portions of the first filter 4. Therefore, the air flow entering the frame 1 from the first filter screen 4 can enter the frame 1 from the meshes between the net strips due to the blocking effect of the net strips, so that the oil mist in the air flow can be prevented from covering the sharp teeth 21 or the sharp thorn parts 23, the sharp teeth 21 and the sharp thorn parts 23 are ensured not to be covered by oil drops, and the discharging effect of the air flow can be effectively exerted.
In addition, in order to avoid the situation of breakdown between the sharp teeth 21 of the first polar plate 2 and the first filter screen 4, the shortest distance between the end of the sharp teeth 21 and the first filter screen 4 is a, the shortest distance between the end of the sharp teeth 21 and the second polar plate 3 is B, and a is not less than B.
Still be provided with on first polar plate 2, the second polar plate 3 and lead oil groove 200, should lead the oil groove setting at the middle part of first polar plate 2, the second polar plate 3 to this leads oil groove 200 and declines to set up to both sides from the center, and then goes out the greasy dirt water conservancy diversion that first polar plate 2, the second polar plate 3 collected.
According to the high-voltage electrostatic purification device, the first filter screen 4 is arranged, particulate pollutants such as dust and oil smoke in passing air flow can be filtered preliminarily, meanwhile, the air quantity on the cross section of the air inlet of the frame 1 can be uniform under the action of the first filter screen 4, even if the air inlet area of the air flow is concentrated, the distribution area of the air inlet can be effectively uniform, and the purification effect of the air flow after passing through the high-voltage electrostatic purification device is improved. On this basis, utilize the ionization between first polar plate 2 and the first filter screen 4, can make the particulate matter in the air current get into can carry out the charged action behind high-voltage static purifier's the frame 1 and electrified, so the unchangeable condition of air inlet route distance at high-voltage static purifier, the ionization between first polar plate 2 and the first filter screen 4 has increased the distance in ionization region, the ionization charge capacity has been improved, also need not to shorten the distance in low reaches collection dirt region, and then make the particulate matter can carry out abundant ionization in the air current, and can be fully purified, purifying effect is better.
The range hood applying the high-voltage electrostatic purification device can have better oil fume purification capacity under the condition of keeping the power unchanged.

Claims (10)

1. A high-voltage electrostatic purification device comprises a through frame (1) and a polar plate assembly arranged in the frame (1), wherein the polar plate assembly comprises a first polar plate (2) and a second polar plate (3) which have different polarities and are alternately arranged at intervals, and the high-voltage electrostatic purification device is characterized in that: the first polar plate (2) and the second polar plate (3) are arranged in parallel and extend along the air inlet direction, a first filter screen (4) is arranged on an air inlet of the frame (1), and sharp teeth (21) are arranged on the edge of one end, facing the first filter screen (4), of the first polar plate (2); the first filter screen (4) adopts a metal mesh which can conduct electricity;
when the dust collector works, high-voltage electricity is introduced to the first pole plate (2), the front ends of the sharp teeth (21) can generate a discharge effect, so that electric charge movement exists between the front ends of the sharp teeth (21) and the first filter screen (4), and the electric charge starts when particles in air flow entering from the first filter screen (4) pass through an area between the sharp teeth (21) and the first filter screen (4).
2. The high-voltage electrostatic purification device according to claim 1, wherein: the shortest distance between the end part of the sharp tooth (21) and the first filter screen (4) is A, the shortest distance between the end part of the sharp tooth (21) and the second polar plate (3) is B, and A is larger than or equal to B.
3. The high-voltage electrostatic purification device according to claim 1, characterized in that: and a second filter screen (5) is arranged on the air outlet of the frame (1).
4. The high-tension electrostatic purification apparatus of claim 1, wherein: the sharp teeth (21) are arranged facing the net strip part of the first filter net (4).
5. The high-voltage electrostatic purification device according to any one of claims 1 to 4, wherein: an opening (22) is formed in the area, facing the air inlet end of the second polar plate (3), of the first polar plate (2), and a spine portion (23) is arranged on the peripheral wall of the opening (22).
6. The high-voltage electrostatic purification device according to claim 5, wherein: at least two openings (22) are formed in the first polar plate (2) along the width direction.
7. The high-voltage electrostatic purification device according to claim 6, wherein: the spine parts (23) on the two opposite side peripheral walls of the opening (22) are alternately arranged.
8. The high-voltage electrostatic purification device according to any one of claims 1 to 4, wherein: the first pole plates (2) are connected together through a first rod body (6), the second pole plates (3) are connected together through a second rod body (7), and two ends of the first rod body (6) and the second rod body (7) are fixedly connected to the frame (1);
each first polar plate (2) is provided with a first through hole (24) for the second rod body (7) to pass through, and each second polar plate (3) is provided with a second through hole (31) for the first rod body (6) to pass through.
9. The utility model provides a range hood, includes casing, sets up the fan system in the casing, its characterized in that: the high-voltage electrostatic purification device is arranged on an oil fume channel of the shell and is arranged at an air inlet end or an air outlet end of the fan system.
10. The range hood of claim 9, wherein: the air outlet cover is connected to the shell and arranged at the air outlet end of the fan system, and the high-voltage electrostatic purification device is arranged in the air outlet cover.
CN202110269752.8A 2021-03-12 2021-03-12 High-voltage electrostatic purifying device and range hood Active CN113124437B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110269752.8A CN113124437B (en) 2021-03-12 2021-03-12 High-voltage electrostatic purifying device and range hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110269752.8A CN113124437B (en) 2021-03-12 2021-03-12 High-voltage electrostatic purifying device and range hood

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CN113124437A CN113124437A (en) 2021-07-16
CN113124437B true CN113124437B (en) 2022-10-21

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2553894Y (en) * 2002-06-26 2003-06-04 中国船舶重工集团公司第七研究院第七○四研究所 Oil fume separating apparatus
CN2691688Y (en) * 2004-03-23 2005-04-13 盛焕照 Electrostatic oil fume cleaning apparatus
JP2011161355A (en) * 2010-02-09 2011-08-25 Panasonic Corp Dust collecting apparatus
CN103292375B (en) * 2013-06-28 2015-09-23 广东万和电气有限公司 The electric purification type range hood of multiple filtration
WO2018120860A1 (en) * 2016-12-31 2018-07-05 区永辉 Air purification device and method
CN210373596U (en) * 2019-05-30 2020-04-21 周锐锐 High-voltage electrostatic oil fume purification device
CN110686298B (en) * 2019-10-22 2021-10-26 佛山市顺德区美的洗涤电器制造有限公司 Electrostatic module and range hood

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