CN113577999A - Rotary discharge type air purification device and method - Google Patents
Rotary discharge type air purification device and method Download PDFInfo
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- CN113577999A CN113577999A CN202110749633.2A CN202110749633A CN113577999A CN 113577999 A CN113577999 A CN 113577999A CN 202110749633 A CN202110749633 A CN 202110749633A CN 113577999 A CN113577999 A CN 113577999A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004887 air purification Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 238000000746 purification Methods 0.000 claims abstract description 32
- 238000010891 electric arc Methods 0.000 claims abstract description 8
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 5
- 238000001179 sorption measurement Methods 0.000 claims description 23
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 241000270295 Serpentes Species 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 14
- 239000010815 organic waste Substances 0.000 abstract description 6
- 238000010926 purge Methods 0.000 abstract description 5
- 239000012855 volatile organic compound Substances 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a rotary discharge type air purification device and a rotary discharge type air purification method. The air purification device comprises a purification channel and a plurality of arc striking discharge devices installed in the purification channel. The arc striking discharge device comprises a motor, a rotating shaft, a metal wire and a turntable; the two turnplates are opposite to each other and arranged at intervals and are respectively and rotationally connected with the side wall of the purification channel through corresponding rotating shafts. The opposite sides of the two turntables are provided with a plurality of metal wires. The inner ends of the metal wires are fixed with the corresponding turntables. Under the working state, voltage exists between the metal wires on the two turntables. When the two turntables rotate reversely, the metal wires on the two turntables can be contacted and separated, and arc striking can occur. The invention utilizes the mode of contact arc striking to generate discontinuous electric arc, and utilizes the electric arc to decompose organic pollutants in organic waste gas; since the invention does not generate high voltage and only the area of the arc generated during operation has a local high temperature, the whole purge channel is kept at a lower temperature.
Description
Technical Field
The invention relates to the field of air purification, in particular to a rotary discharge type air purification device and method.
Background
With the development of industrial process, the environmental pollution is increasingly intensified, and the atmospheric pollution of inhalable particles, volatile organic compounds, ozone, nitrogen oxides and the like brings more and more serious threats to the health of human beings. In particular, in industrial work places, volatile organic compounds discharged from production devices are hidden in air breathed by people at all times, cannot be seen and found, but have great influence on human health, and become potential hazards. In the field of air purification, particularly, in the field of technology and equipment for indoor or enclosed spaces, attention is gradually paid to people, and the development of related equipment is urgent.
In the existing air purification technology, a filtration method, an electrostatic method, an adsorption method and a catalysis method are conventional technical means, and have the defects of low removal efficiency, more use limitations, small application range, high maintenance cost, secondary pollution and the like. Arcing generally refers to an air conduction phenomenon in which a current path is formed between two electrodes under the action of a high electric field intensity, and the process of generating the conduction phenomenon is called arc striking. At present, the common arc striking modes are mainly divided into contact arc striking and non-contact arc striking. The contact arc striking is to complete the arc striking process by utilizing the instantaneous short circuit of two electrodes; non-contact arc ignition is accomplished by applying a high level of electric field strength between two electrodes to break down the air to form charged particles. After the arc is formed, the electrons on the surface of the cathode can obtain enough energy to be emitted outwards due to the high temperature in the arc gap, and thermal electric field emission is formed.
Meanwhile, under the action of high temperature, the irregular thermal motion speed of gas neutral particles is increased, and when the neutral particles with enough kinetic energy collide with each other, the neutral particles are dissociated to form electrons and positive ions, which is called thermal dissociation. The particles generated by the discharge and pollutants in the air generate a series of complex oxidation-reduction reactions, and can participate in the decomposition of volatile organic compounds, thereby achieving the purpose of purifying the air.
Disclosure of Invention
In view of the defects in the prior art, the present invention provides a method and an apparatus for purifying air by rotating discharge.
The invention relates to a rotary discharge type air purification device which comprises a purification channel and a plurality of arc striking discharge devices arranged in the purification channel. The arc striking discharge device comprises a motor, a rotating shaft, a metal wire and a turntable; the two turnplates are opposite to each other and arranged at intervals and are respectively and rotationally connected with the side wall of the purification channel through corresponding rotating shafts. The two turntables are driven by one or two motors to coaxially rotate in opposite directions. The opposite sides of the two turntables are provided with a plurality of metal wires. The inner ends of the metal wires are fixed with the corresponding turntables. Under the working state, voltage exists between the metal wires on the two turntables. When the two turntables rotate reversely, the metal wires on the two turntables can be contacted and separated, and arc striking can occur.
Preferably, the arc generating positions of two adjacent arc striking discharge devices are shifted in the width direction of the purge path. The arc generating position of the arc striking discharge device is the intersection position of the metal wires on the two turntables.
Preferably, the input end of the purification channel is provided with a fan module. The fan module comprises a fan main body, a filter screen and a fan switch; the fan main body is fixed at the input end of the purification channel and is connected with the power supply through a fan switch. The filter screen sets up the outside at fan main part. And an adsorption module is arranged at the output end of the purification channel. The adsorption carrier of the adsorption module is made of honeycomb ceramics; the adsorption particles filled in the adsorption carrier adopt activated carbon particles.
Preferably, the arc ignition discharge devices are arranged at equal intervals in sequence along the longitudinal direction of the purge path.
Preferably, the arc starting discharge device is powered by a dc power supply. And conductive slip rings are arranged on the two rotating shafts. And the rotating interface of the conductive slip ring is electrically connected with each metal wire on the corresponding turntable. The direct current power supply device comprises a battery, an electric wire and a power switch. Two poles of the battery are respectively connected with the fixed interfaces of the two conductive slip rings through the electric wire and the power switch.
Preferably, the two rotating discs in the same arc striking discharge device are driven by two motors respectively. The two motors are respectively fixed on two sides of the purification channel. The two rotating shafts are respectively fixed with the output shafts of the two motors.
Preferably, the wires on the same turntable are uniformly distributed along the circumferential direction of the rotation axis of the turntable. The difference in the distance from the wire to the axis of the turntable on the two turntables is less than or equal to the diameter of the wire.
Preferably, the motor is an adjustable rotating speed motor. The rated voltage output by the direct current power supply device is 20V, and the rated current is 100 mA.
Preferably, the outer end of the metal wire on one of the turntables in the arc ignition discharge device is turned outwards or inwards, and the turning part can contact with the other group of metal wires and deform during rotation.
Preferably, the purification channel has a serpentine shape. A plurality of groups of metal wires which are sequentially arranged from inside to outside are arranged on the rotary disc of each arc striking discharge device; the group of metal wires are a plurality of metal wires which are sequentially arranged along the circumferential direction of the axis of the rotary disc. When the two turntables rotate reversely, the multiple groups of metal wires on the two turntables can be contacted and separated respectively.
The working method of the rotary discharge type air purification device comprises the following specific steps:
step 1, starting a fan module, and pumping the treated gas into a purification channel.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention utilizes a contact arc striking mode, utilizes 20V low voltage to generate discontinuous electric arc, and utilizes the electric arc to decompose organic pollutants in organic waste gas; the invention does not generate high voltage, only generates local high temperature in the arc area during working, and the whole purification channel is kept at lower temperature, so the invention has lower energy consumption and high safety.
2. The invention aims at the condition that time intervals exist in contact arc striking, and the multi-stage arc striking discharge devices which are sequentially arranged are arranged, so that volatile organic compounds can be more fully removed.
3. The invention can realize the simultaneous removal of particulate pollutants and volatile organic compounds by matching with an adsorption means; meanwhile, the device is simple, low in cost and convenient to use, and can overcome the defects of the prior art.
Drawings
Fig. 1 is a schematic view of a rotary discharge type air cleaning device according to an embodiment of the present invention (seals are provided in the device, the figure is a better illustration of the interior of the device, and the top housing of the device is omitted).
Fig. 2 is a schematic view of the arrangement of a part of the arc ignition discharge device in the housing according to the present invention.
Fig. 3 is a schematic structural view of the arc striking discharge apparatus of the present invention.
In the figure: 1. a motor; 2. a coupling; 3. a rotating shaft; 4. a metal wire; 5. a turntable; 6. a conductive slip ring; 7. a DC power supply device; 8. an adsorption module; 9. an arc striking discharge device; 10. a fan module.
Detailed Description
The invention will be further explained with reference to the drawings.
Example 1
As shown in fig. 1, 2 and 3, a rotary discharge type air cleaning device includes a housing, a cleaning passage, a dc power supply 7, an adsorption module 8, an arc striking discharge device 9, and a fan module 10. The purge passage is provided in the housing. The fan module 10 and the adsorption module 8 are respectively arranged at the input end and the output end of the purification channel. A plurality of arc ignition discharging devices 9 which are arranged in sequence are arranged in the purification channel. The fan module 10 is used to provide airflow power to draw organic waste gases (VOCs) into the purge channel. The arc ignition discharge device 9 is used for oxidizing gaseous organic matter by means of generating an arc. Adsorption module 8 is used for carrying out final waste gas and adsorbs, guarantees that organic waste gas can discharge to reach standard. The dc power supply device 7 is used for supplying power to the arc striking discharge device 9. The adsorption carrier of the adsorption module 8 is made of honeycomb ceramics; the adsorption particles filled in the adsorption carrier adopt activated carbon particles. The shell is provided with a working indicator light.
The fan module 10 comprises a fan main body, a filter screen and a fan switch; the fan main body is fixed at the input end of the purification channel and is connected with the power supply through a fan switch. The filter screen sets up in the outside of fan main part for block solid particle and get into the purification passageway. The dc power supply 7 includes a battery, a wire, and a power switch. Two poles of the battery are respectively connected with two conductive slip rings 6 of an arc striking and discharging device 9 through wires and a power switch.
The arc striking discharge device 9 comprises a motor 1, a coupler 2, a rotating shaft 3, a metal wire 4, a turntable 5 and a conductive slip ring 6; the metal wire 4 is a tungsten wire. The two turntables 5 are arranged oppositely and at intervals and are respectively connected with the side wall of the purification channel in a rotating way through the corresponding rotating shafts 3. The axes of the turntables 5 coincide. Two motors 1 are respectively fixed on two sides of the purification channel. The two rotating shafts 3 and the output shafts of the two motors 1 are respectively fixed through the shaft couplings 2. The rotation speed of the motor 1 is adjustable.
The opposite sides of the two turntables 5 are each provided with a set of wires 4. The inner ends of a plurality of metal wires 4 in the same group are fixed with the corresponding turntables 5. The metal wires 4 on the same rotary disc 5 are uniformly distributed along the circumferential direction of the rotary axis of the rotary disc 5. When the two rotating disks 5 rotate in opposite directions, the wires 4 on the two rotating disks 5 repeatedly come into contact and separate. The difference in the distance of the wire 4 from the axis of the turntable 5 on the two turntables 5 is less than or equal to the diameter of the wire 4.
And the two rotating shafts 3 are provided with conductive slip rings 6. The rotating interface of the conductive slip ring 6 is electrically connected with each metal wire 4 on the corresponding rotating disc 5. The fixed interfaces of the two conductive slip rings 6 are electrically connected with the two power supply interfaces of the direct current power supply device 7 respectively. A voltage difference can be applied to the wires 4 on the two rotary discs 5 through the direct current power supply device 7; when the metal wires 4 on the two rotary discs 5 are contacted and separated, the two metal wires 4 are contacted to generate instantaneous short circuit and then are separated, an arc striking discharge phenomenon occurs, particles generated by discharge and pollutants in gas generate a series of complex oxidation-reduction reactions and can participate in the decomposition of volatile organic compounds, and therefore the effect of degrading organic waste gas is achieved.
The intersection positions of the two groups of metal wires 4 on the two adjacent arc ignition discharge devices 9 are staggered in the width direction of the purification channel, so that the organic waste gas is more fully decomposed.
The direct current supply device 7 outputs 20V low voltage, so that the arc striking discharge device 9 can generate electricity in a contact arc striking mode, and the safety of the arc decomposition equipment can be greatly improved.
The working method of the rotary discharge type air purification device comprises the following specific steps:
step 1, starting a fan module 10, and pumping the treated gas into the purification channel in a blowing or exhausting mode.
Preferably, the direct current power supply 7 is a dry battery or a storage battery, the rated output voltage is greater than or equal to 20V, and the rated output current is greater than or equal to 100 mA.
Meanwhile, when the treated gas is output through the adsorption module 8, the adsorption particles in the adsorption module 8 adsorb volatile organic compounds in the gas, and the problem of secondary pollution caused by arc striking discharge is solved.
Example 2
A rotary discharge type air cleaning device, the present embodiment is different from embodiment 1 in that: the outer end of one group of metal wires 4 in the arc ignition discharge device 9 is turned outwards or inwards, and the turning part can be contacted with the other group of metal wires 4 in the rotation process, so that the two groups of metal wires of the arc ignition discharge device 9 can be stably contacted and separated in the long-term work process.
Example 3
A rotary discharge type air cleaning device, the present embodiment is different from embodiment 1 in that: the purification channel is in a snake shape. A plurality of groups of metal wires 4 which are sequentially arranged from inside to outside are arranged on the rotary disc of each arc striking discharge device 9; the group of wires 4 is a plurality of wires arranged in sequence along the circumferential direction of the axis of the turntable. When the two turntables rotate reversely, the multiple groups of metal wires on the two turntables can be contacted and separated respectively.
Claims (10)
1. A rotary discharge type air cleaning device comprises a cleaning channel; the method is characterized in that: the device also comprises a plurality of arc ignition discharging devices (9) arranged in the purification channel; the arc striking discharge device (9) comprises a motor (1), a rotating shaft (3), a metal wire (4) and a turntable (5); the two turnplates (5) are arranged oppositely and at intervals and are respectively and rotationally connected with the side wall of the purification channel through corresponding rotating shafts (3); the two turntables (5) are driven by one or two motors (1) to coaxially and reversely rotate; a plurality of metal wires (4) are arranged on the opposite side surfaces of the two turntables (5); the inner ends of the metal wires (4) are fixed with the corresponding turntables (5); under the working state, voltage is arranged between the metal wires (4) on the two turntables (5); when the two turntables (5) rotate reversely, the metal wires (4) on the two turntables (5) can be contacted and separated, and arc striking can occur.
2. A rotary discharge type air cleaning device according to claim 1, wherein: the arc generating positions of two adjacent arc-striking discharge devices (9) are staggered in the width direction of the purification channel; the arc generating position of the arc striking discharge device (9) is the intersection position of the metal wires (4) on the two turntables (5).
3. A rotary discharge type air cleaning device according to claim 1, wherein: the input end of the purification channel is provided with a fan module (10); the fan module (10) comprises a fan main body, a filter screen and a fan switch; the fan main body is fixed at the input end of the purification channel and is connected with the power supply through a fan switch; the filter screen is arranged on the outer side of the fan main body; an adsorption module (8) is arranged at the output end of the purification channel; the adsorption carrier of the adsorption module (8) is made of honeycomb ceramics; the adsorption particles filled in the adsorption carrier adopt activated carbon particles.
4. A rotary discharge type air cleaning device according to claim 1, wherein: the arc ignition discharging device (9) supplies power through the direct current power supply device (7); conductive slip rings (6) are arranged on the two rotating shafts (3); the rotating interface of the conductive slip ring (6) is electrically connected with each metal wire (4) on the corresponding turntable (5); the direct current power supply device (7) comprises a battery, an electric wire and a power switch; two poles of the battery are respectively connected with the fixed interfaces of the two conductive slip rings (6) through wires and a power switch.
5. A rotary discharge type air cleaning device according to claim 1, wherein: two turntables in the same arc striking discharge device (9) are respectively driven by two motors (1); the two motors (1) are respectively fixed on two sides of the purification channel; the two rotating shafts (3) are respectively fixed with the output shafts of the two motors (1).
6. A rotary discharge type air cleaning device according to claim 1, wherein: all the metal wires (4) on the same rotary table (5) are uniformly distributed along the circumferential direction of the rotating axis of the rotary table (5); the difference of the distances from the metal wires (4) on the two turntables (5) to the axis of the turntables (5) is less than or equal to the diameter of the metal wires (4).
7. A rotary discharge type air cleaning device according to claim 1, wherein: the motor is an adjustable rotating speed motor; the rated voltage output by the direct current power supply device (7) is 20V, and the rated current is 100 mA.
8. A rotary discharge type air cleaning device according to claim 1, wherein: the outer end of the metal wire (4) on one of the turntables in the arc ignition discharging device (9) is turned outwards or inwards, and the turning part can be contacted with the other group of metal wires (4) and deformed in the rotation process.
9. A rotary discharge type air cleaning device according to claim 1, wherein: the purification channel is in a snake shape; a plurality of groups of metal wires (4) which are sequentially arranged from inside to outside are arranged on the rotary disc of each arc striking discharge device (9); the group of metal wires (4) are a plurality of metal wires which are sequentially arranged along the circumferential direction of the axis of the turntable; when the two turntables rotate reversely, the multiple groups of metal wires on the two turntables can be contacted and separated respectively.
10. A rotary discharge type air purification method; the method is characterized in that: using the rotary discharge type air cleaning device according to claim 1; the rotary discharge type air purification method comprises the following specific steps:
step 1, starting a fan module (10) to pump the treated gas into a purification channel;
step 2, generating voltage between the metal wires (4) on the two turntables; two turntables in the same arc striking discharge device (9) rotate reversely, so that the metal wires (4) on the two turntables are continuously contacted and separated; when the two wires are contacted and separated, an electric arc phenomenon occurs at the contact point, and organic pollutants in the treated gas are decomposed.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116832962A (en) * | 2022-07-22 | 2023-10-03 | 苏州科技大学 | Method for purifying cooking fume |
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CN108744902A (en) * | 2018-07-06 | 2018-11-06 | 上海高生集成电路设备有限公司 | One kind being applied to semiconductor waste gas processing equipment plasma electrode device |
CN110571649A (en) * | 2019-10-16 | 2019-12-13 | 南宁超伏电气科技有限公司 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
CN112413784A (en) * | 2020-11-27 | 2021-02-26 | 上海交通大学 | Portable multifunctional air purification method and device |
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2021
- 2021-07-02 CN CN202110749633.2A patent/CN113577999B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102275020A (en) * | 2011-07-12 | 2011-12-14 | 广东工业大学 | High-efficient cutting device for compound electrolysis wire of metal pipe |
CN108745645A (en) * | 2018-04-15 | 2018-11-06 | 广州朗洁环保科技有限公司 | A kind of method and its clarifier of rotation electrode shielding High-voltage electrostatic purification gas |
CN108744902A (en) * | 2018-07-06 | 2018-11-06 | 上海高生集成电路设备有限公司 | One kind being applied to semiconductor waste gas processing equipment plasma electrode device |
CN110571649A (en) * | 2019-10-16 | 2019-12-13 | 南宁超伏电气科技有限公司 | Single-disc wheel type solid-phase arc extinguishing lightning protection device |
CN112413784A (en) * | 2020-11-27 | 2021-02-26 | 上海交通大学 | Portable multifunctional air purification method and device |
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CN116832962A (en) * | 2022-07-22 | 2023-10-03 | 苏州科技大学 | Method for purifying cooking fume |
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