CN107519741A - A kind of air purifier of absorbing and storing discharge catalytic degraded - Google Patents

A kind of air purifier of absorbing and storing discharge catalytic degraded Download PDF

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Publication number
CN107519741A
CN107519741A CN201710737769.5A CN201710737769A CN107519741A CN 107519741 A CN107519741 A CN 107519741A CN 201710737769 A CN201710737769 A CN 201710737769A CN 107519741 A CN107519741 A CN 107519741A
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CN
China
Prior art keywords
absorbing
air purifier
temperature plasma
insulating medium
discharge catalytic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710737769.5A
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Chinese (zh)
Inventor
赵红昌
曹月琴
雍海燕
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Sichuan Hongyi Wisdom Intellectual Property Operation Co Ltd
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Sichuan Hongyi Wisdom Intellectual Property Operation Co Ltd
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Priority to CN201710737769.5A priority Critical patent/CN107519741A/en
Publication of CN107519741A publication Critical patent/CN107519741A/en
Withdrawn legal-status Critical Current

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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
    • B01D53/02—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
    • B01D53/0407—Constructional details of adsorbing systems
    • 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
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/22—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818—Employing electrical discharges or the generation of a plasma

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The invention discloses a kind of air purifier of absorbing and storing discharge catalytic degraded, it is related to low temperature plasma application technical field, the present invention includes purification cabinet and automatically controlled electrical equipment, the purification cabinet inside is disposed with multiple DBD low-temperature plasma generators be arrangeding in parallel from top to bottom, electrostatic precipitator, blower fan, first filter layer and block net, the DBD low-temperature plasma generators include the insulating medium layer between two electrode plates being oppositely arranged in parallel and battery lead plate, the insulating medium layer is disposed therein a battery lead plate inner surface, the beds for being filled with gas absorption element are folded between insulating medium layer and another battery lead plate, the clearing machine bottom portion opens up air inlet, top opens up air outlet, the present invention has degradation efficiency high, it is stable, the advantages of fresh air.

Description

A kind of air purifier of absorbing and storing-discharge catalytic degraded
Technical field
The present invention relates to low temperature plasma application technical field, is urged more particularly to a kind of absorbing and storing-electric discharge Change the air purifier of degraded.
Background technology
What China was put into effect for 2012《Key area prevention and control of air pollution " 12 " is planned》In, clearly propose to open first Begin control VOC (Volatile Organic Compounds, VOCs), and VOCs refers to saturation at normal temperatures Vapour pressure be more than 70Pa, under normal pressure organic compound of the boiling point less than 260 DEG C general name, common are hydro carbons, alcohols, esters, Acids and amine and nitrile compounds.VOCs species is various, and the toxicity showed and stimulation performance cause human body presentation a variety of not Suitable reaction, can be affected greatly, part VOCs can also be with the nitrogen oxidation in air under the irradiation of ultraviolet light to health Thing occurs photochemical reaction and forms photochemical fog VOCs, thus control to VOCs and administer it is particularly important with it is urgent.
Non-equilibrium thermodynamics plasma, i.e. low temperature plasma, ion temperature are and electric typically between 300~400K Sub- temperature can reach 104K, its macro-temperature is close to room temperature, and electron energy is higher, and high energy electron is sent out with gas molecule, atom Raw inelastic collision into, energy dress is changed to the interior energy of ground state molecule and atom, a series of mistakes such as excite, ionize and dissociate Journey, period proposition and the state of activation simultaneously produce a large amount of active particles and free radical in collision process, cause physical change and change Learn change.The discharge mode of low-temperature plasma generator includes corona discharge, glow discharge and dielectric impedance (DBD) electric discharge Three kinds of method, corona discharge method processing VOCs effects are good, but energy consumption is big, now predominantly stays in the laboratory research stage.
It is single that VOCs is degraded using lower temperature plasma technology, although having very high degradation rate, due to electronics The chemical reaction of initiation is extremely complex, and make it that selectivity is relatively low, and introduce catalysis technique is combined with lower temperature plasma technology, The advantage of reactant orientation conversion can be promoted, then realize VOCs deep oxidation.
Usually pernicious gas is absorbed using sorbing materials such as absorption activated carbons in the prior art, but physical absorption VOCs gases are not chemically treated, chemical property is not changed, and secondary pollution be present.
The content of the invention
It is an object of the invention to：In order to solve the technical problem that VOCs gases degradation efficiency is low in the prior art, this hair The bright air purifier that a kind of absorbing and storing-discharge catalytic degraded is provided.
The present invention specifically uses following technical scheme to achieve these goals：
A kind of air purifier of absorbing and storing-discharge catalytic degraded, including purification cabinet and automatically controlled electrical equipment, the purification Cabinet inside is disposed with multiple DBD low-temperature plasma generators, electrostatic precipitator, wind be arrangeding in parallel from top to bottom Machine, first filter layer and net is blocked, the DBD low-temperature plasma generators include two electrode plates and the electricity being oppositely arranged in parallel Insulating medium layer between pole plate, the insulating medium layer are disposed therein a battery lead plate inner surface, insulating medium layer with it is another The beds for being filled with gas absorption element are folded between one battery lead plate, the clearing machine bottom portion opens up air intake Mouthful, top opens up air outlet.The principle that absorptive element and catalyst are concentrated between two battery lead plates is：In continuous discharge method VOCs is shorter in the residence time of plasma slab, and the intermediate product after oxidation is deposited on catalyst surface so that the carbon of reaction Balance reduces, and can cause secondary pollution problem, while energy consumption limits its application industrially greatly；And absorbing and storing- In discharge catalytic edman degradation Edman (absorptive element adsorption storage gas), VOCs residence times in plasma reactor increase, oxygen Change product further can be reacted with active particle carrys out exhaustive oxidation into CO2And H2O, Carbon balance shorten while increase Discharge time, so as to which the energy consumption in degradation process be greatly reduced.
The electrostatic precipitator includes horizontally disposed negative electricity flase floor and the positive electricity tungsten filament below negative electricity flase floor, The releasable 6kV electrostatic of positive electricity tungsten filament.
Further, the dielectric material of insulating medium layer is corundum or poly- four in the DBD low-temperature plasma generators PVF.
Further, the DBD low-temperature plasma generators two terminate ac high-voltage, 9.7~10kV/cm of field strength, frequency Rate 350Hz~450Hz.
Further, the gas absorption element is the high efficiency active carbon containing zeolite and KI.
Further, the catalyst component of the beds is BaTiO3And TiO2.Compared to single catalyst, Composite catalyst possesses more preferable catalytic effect.
Further, the air inlet is arranged on bottom surface and the bottom surrounding of purification cabinet.Because VOCs gases are all close Degree is more than the organic compound gas of atmospheric density, and gas sinks, so the air inlet for purifying cabinet is opened in into bottom and bottom Around portion, be advantageous to the gas of preferential purifying contaminated most serious.
Further, dust-proof outlet housing is provided with the air outlet.
Further, described four angles in clearing machine bottom portion are provided with universal wheel, and locating snap ring is provided with universal wheel.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. VOCs is shorter in the residence time of plasma slab in continuous discharge method, the intermediate product after oxidation, which is deposited on, urges Agent surface so that the Carbon balance of reaction reduces, and can cause secondary pollution problem, while energy consumption limits it in industry greatly On application；And in absorbing and storing-discharge catalytic edman degradation Edman (absorptive element adsorption storage gas), VOCs is in plasma The residence time increases in reactor, and oxidation product further can be reacted with active particle carrys out exhaustive oxidation into CO2With H2O, Carbon balance shortens discharge time while increase, so as to which the energy consumption in degradation process be greatly reduced.
2. because VOCs gases are all the organic compound gas that density is more than atmospheric density, gas sinks, so will be net The air inlet for changing cabinet is opened in bottom and bottom periphery, is advantageous to the gas of preferential purifying contaminated most serious.
3. blower fan is arranged on the bottom of purification cabinet, run in the air purifier of absorbing and storing-discharge catalytic degraded Cheng Zhong, be advantageous to slow down dusty gas in the low-temperature plasma generator on top by speed, make positioned at low temperature etc. from Gas absorption element among daughter generator can fully absorb gas, be advantageous to low-temperature plasma generator to waste gas Degradation treatment.
4. gas absorption element is filled in beds, is advantageous to the bump contact of waste gas and catalyst, carries The degraded purification efficiency of high waste gas.
5. the lower section of low-temperature plasma generator sets electrostatic precipitator, first filter layer and blocks net, block net barrier compared with Big dregs particle and insect, first filter layer further obstruct dust, the path powder carried in electrostatic precipitator Adsorption waste gas Dirt, so as to ensure that by low-temperature plasma generator be all gas, it is beneficial to improve making for low-temperature plasma generator With the operating efficiency in life-span.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of structural representation of the air purifier of absorbing and storing of the present invention-discharge catalytic degraded.
Reference：1-purification cabinet, 11-air inlet, 12-air outlet, 121-dust-proof outlet housing, 13-universal Wheel, 131-locating snap ring, 2-DBD low-temperature plasma generators, 21-battery lead plate, 22-insulating medium layer, 23-gas are inhaled Attached element, 24-beds, 3-electrostatic precipitator, 31-negative electricity flase floor, 32-positive electricity tungsten filament, 4-blower fan, 5- First filter layer, 6-block net.
Embodiment
In order to which those skilled in the art are better understood from the present invention, below in conjunction with the accompanying drawings with following examples to the present invention It is described in further detail.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of air purifier of absorbing and storing-discharge catalytic degraded, including purification Cabinet 1 and automatically controlled electrical equipment, it is described purification cabinet 1 inside be disposed with from top to bottom multiple DBD low temperature be arrangeding in parallel etc. from Daughter generator 2, electrostatic precipitator 3, blower fan 4, first filter layer 5 and net 6 is blocked, the DBD low-temperature plasma generators 2 wrap The insulating medium layer 22 between two electrode plates 21 being oppositely arranged in parallel and battery lead plate 21 is included, the insulating medium layer 22 is set An inner surface of battery lead plate 21 wherein is put, is folded between insulating medium layer 22 and another battery lead plate 21 and is filled with gas The beds 24 of absorptive element 23, purification cabinet 2 bottom open up air inlet 11, and top opens up air outlet 12.
The electrostatic precipitator 3 includes horizontally disposed negative electricity flase floor 31 and the positive electricity positioned at the lower section of negative electricity flase floor 31 Tungsten filament 32, the releasable 6kV electrostatic of positive electricity tungsten filament 32.
The dielectric material of insulating medium layer 22 is corundum or polytetrafluoroethylene (PTFE) in the DBD low-temperature plasma generators 2.
Described 2 liang of termination ac high-voltages of DBD low-temperature plasma generators, 9.7~10kV/cm of field strength, frequency 350Hz~ 450Hz。
The gas absorption element 23 is the high efficiency active carbon containing zeolite and KI.
The catalyst component of the beds 24 is BaTiO3And TiO2.
The air inlet 11 is arranged on bottom surface and the bottom surrounding of purification cabinet 2.
Dust-proof outlet housing 121 is provided with the air outlet 12
Purification cabinet 2 bottom four angle is provided with universal wheel 13, and locating snap ring 131 is provided with universal wheel 13.
Described above, only presently preferred embodiments of the present invention is not intended to limit the invention, patent protection model of the invention Enclose and be defined by claims, the equivalent structure change that every specification and accompanying drawing content with the present invention is made, similarly It should include within the scope of the present invention.

Claims (9)

1. a kind of air purifier of absorbing and storing-discharge catalytic degraded, including purification cabinet (1) and automatically controlled electrical equipment, its feature It is, multiple DBD low-temperature plasma generators be arrangeding in parallel is disposed with from top to bottom inside the purification cabinet (1) (2), electrostatic precipitator (3), blower fan (4), first filter layer (5) and net (6) is blocked, DBD low-temperature plasma generators (2) bag Include the insulating medium layer (22) between two electrode plates (21) being oppositely arranged in parallel and battery lead plate (21), the insulating medium layer (22) battery lead plate (21) inner surface is disposed therein, is folded between insulating medium layer (22) and another battery lead plate (21) The beds (24) of gas absorption element (23) are filled with, described purification cabinet (2) bottom opens up air inlet (11), top Open up air outlet (12).
2. the air purifier of absorbing and storing according to claim 1-discharge catalytic degraded, it is characterised in that described quiet Electric cleaner (3) includes horizontally disposed negative electricity flase floor (31) and the positive electricity tungsten filament below negative electricity flase floor (31) (32), the releasable 6kV electrostatic of the positive electricity tungsten filament (32).
3. the air purifier of absorbing and storing according to claim 1-discharge catalytic degraded, it is characterised in that the DBD The dielectric material of insulating medium layer (22) is corundum or polytetrafluoroethylene (PTFE) in low-temperature plasma generator (2).
4. the air purifier of absorbing and storing according to claim 1-discharge catalytic degraded, it is characterised in that the DBD Low-temperature plasma generator (2) two terminates ac high-voltage, 9.7~10kV/cm of field strength, frequency 350Hz~450Hz.
5. the air purifier of absorbing and storing according to claim 1-discharge catalytic degraded, it is characterised in that the gas Body absorptive element (23) is the high efficiency active carbon containing zeolite and KI.
6. the air purifier of absorbing and storing according to claim 1-discharge catalytic degraded, it is characterised in that described to urge The catalyst component of agent bed (24) is BaTiO3And TiO2。
7. absorbing and storing according to claim 1-air purifier of discharge catalytic degraded, it is characterised in that it is described enter Air port (11) is arranged on bottom surface and the bottom surrounding of purification cabinet (2).
8. absorbing and storing according to claim 1-air purifier of discharge catalytic degraded, it is characterised in that it is described go out The dust-proof outlet housing (121) for avoiding laying dust is provided with air port (12).
9. the air purifier of absorbing and storing according to claim 1-discharge catalytic degraded, it is characterised in that described net Change cabinet (2) bottom four angle and be provided with universal wheel (13), and locating snap ring (131) is provided with universal wheel (13).
CN201710737769.5A 2017-08-24 2017-08-24 A kind of air purifier of absorbing and storing discharge catalytic degraded Withdrawn CN107519741A (en)

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CN201710737769.5A CN107519741A (en) 2017-08-24 2017-08-24 A kind of air purifier of absorbing and storing discharge catalytic degraded

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108283870A (en) * 2018-01-05 2018-07-17 安徽理工大学 A kind of plasma exhaust gas Integrated Processing Unit
CN111701409A (en) * 2020-07-20 2020-09-25 常州优艾斯环保科技有限公司 Discharge equipment, tail gas purification treatment system and purification treatment method thereof
CN112870910A (en) * 2021-04-23 2021-06-01 山东大学 VOC gas electro-adsorption-catalytic degradation device and technology

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108283870A (en) * 2018-01-05 2018-07-17 安徽理工大学 A kind of plasma exhaust gas Integrated Processing Unit
CN108283870B (en) * 2018-01-05 2020-10-16 安徽理工大学 Plasma waste gas comprehensive treatment device
CN111701409A (en) * 2020-07-20 2020-09-25 常州优艾斯环保科技有限公司 Discharge equipment, tail gas purification treatment system and purification treatment method thereof
CN112870910A (en) * 2021-04-23 2021-06-01 山东大学 VOC gas electro-adsorption-catalytic degradation device and technology
CN112870910B (en) * 2021-04-23 2022-02-01 山东大学 VOC gas electro-adsorption-catalytic degradation device and technology

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Application publication date: 20171229