CN209108899U - The processing unit of VOCs - Google Patents
The processing unit of VOCs Download PDFInfo
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- CN209108899U CN209108899U CN201821512953.6U CN201821512953U CN209108899U CN 209108899 U CN209108899 U CN 209108899U CN 201821512953 U CN201821512953 U CN 201821512953U CN 209108899 U CN209108899 U CN 209108899U
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- 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
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Abstract
The utility model provides the processing unit of VOCs a kind of, the processing unit includes plasma modular assembly, plasma modular assembly includes process chamber, first electrode component, second electrode component and molecular sieve, and process chamber is provided with process chamber import and process chamber outlet；First electrode component extends through process chamber；Current polarity that second electrode component and first electrode component conduct on the contrary, and second electrode component form a part of process chamber and close with first electrode component and be positioned apart from；Molecular sieve has hydroxyl group and is arranged in the process chamber.Processing unit provided by the utility model can generate electric field, which can act on the gas in process chamber, so that gas discharge generates a large amount of active particle.Active particle can act on the hydroxyl group on molecular sieve, is dissociated into hydroxyl radical free radical, by means of the oxidation susceptibility of hydroxyl radical free radical, by VOCs oxygenolysis at CO2And H2The small-molecule substances such as O.
Description
Technical field
The utility model relates to gas handling techniques fields, and relate more specifically to the processing unit of VOCs a kind of.
Background technique
With the development of industry, environmental problem is increasingly serious, wherein volatile organic matter (Volatile Organic
Compounds, VOCs) most attention of the pollution problem after SOx, NOx and freon, by countries in the world.With ring
It protects regulation to be becoming better and approaching perfection day by day with strictly, explosive growth will be presented in the improvement of VOCs.The VOCs that industrial processes generate is its master
One of source is wanted, is mainly characterized in that air quantity is big, concentration is low, exhaust gas constituents are complicated.
There are mainly two types of current common processing methods: one is destructive null methods, such as heat-accumulation combustion method and catalysis combustion
Burning method；Another kind is absorption method, such as steam desorption condensation method, absorption process and membrane separation process.Since exhaust gas concentration is low, air quantity is big,
So that there are the disadvantages such as cost of investment is high, energy waste is big, economic benefit is low in above-mentioned processing method；Although using Adsorption Concentration
Add post-processing combined governance technology can save the cost to a certain extent, but still remain the secondary pollutions problems such as solid waste, liquid is useless.
Compared with above-mentioned processing method, lower temperature plasma technology is because its equipment is simple, and low energy consumption, does not generate by-product etc.
Feature has its distinctive advantage in terms of processing Wind Volume, low-concentration industrial source VOCs exhaust gas.But existing low-temperature plasma
The shortcomings that technology is that VOCs removal rate is not high, and the factor for influencing VOCs removal rate is complicated.
Therefore, it is necessary to the processing units of VOCs a kind of, at least to be partially solved problems of the prior art.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed
Technical solution key feature and essential features, do not mean that the guarantor for attempting to determine technical solution claimed more
Protect range.
In order at least be partially solved the above problem, one aspect according to the present utility model provides a kind of VOCs's
Processing unit comprising plasma modular assembly, the plasma modular assembly include:
Process chamber, the process chamber is for handle the gas comprising VOCs, described in the process chamber is provided with and is respectively used to
The process chamber import and process chamber outlet of gas disengaging；
First electrode component, the first electrode component extend through the process chamber；
Second electrode component, the second electrode component formed a part of the process chamber and with the first electrode structure
The current polarity of part conduction on the contrary, and the second electrode component it is close with first electrode component and be positioned apart from so that
Electric field can be generated between the first electrode component and second electrode component, the electric field is used to make the gas in the process chamber
Body generates active particle；And
Molecular sieve, the molecular sieve has hydroxyl group and is arranged in the process chamber, to enable to the hydroxyl
Group is dissociated into hydroxyl radical free radical by the active particle that the gas in the process chamber generates under the action of the electric field, described
Hydroxyl radical free radical is used for so that the VOCs oxygenolysis.
According to this programme, first electrode component and second electrode component can generate electric field in the state of conduction, the electricity
Field can act on the gas in process chamber, so that gas discharge generates a large amount of active particle.Active particle can act on
Hydroxyl group on molecular sieve, is dissociated into hydroxyl radical free radical, and by means of the oxidation susceptibility of hydroxyl radical free radical, VOCs is aoxidized
Resolve into CO2And H2The small-molecule substances such as O.Processing unit provided by the utility model can be effectively removed VOCs, removal rate
Height, and promote the application of non-thermal plasma trap industrially.
Optionally, the molecular sieve is lignin-base molecular sieve.
Optionally, the processing unit further includes the ultraviolet radiation apparatus for radiating ultraviolet light, so that by the gas
O in body2Become ozone, the molecular sieve is located at the radiation areas of the ultraviolet light, so that the ozone makes the molecular sieve
Inside VOCs oxygenolysis.
Optionally, the outside of the process chamber is arranged in the ultraviolet radiation apparatus.
Optionally, the first electrode component extends along the short transverse of the process chamber, the second electrode component shape
At the first wall of the process chamber extended along the short transverse.
Optionally, the second wall of the process chamber to connect with first wall is arranged in the ultraviolet radiation apparatus
Outside, second wall are made of the quartz glass that titanium elements are modified.
Optionally, the plasma modular assembly further includes the dielectric being arranged in the process chamber, described exhausted
First electrode component described in edge media packs.
Optionally, the first electrode component is positive electrode member, and the second electrode component is negative electrode member.
Optionally, at least two process chambers are set in a row, and each of at least two process chamber
Include the first electrode component and the second electrode component and is filled with the molecular sieve.
Optionally, the processing unit further includes shell, the shell be provided be respectively used to gas disengaging device into
Mouth and device outlet, at least one set of plasma modular assembly and the ultraviolet radiation apparatus are arranged in the shell
In.
Another aspect according to the present utility model, provides the processing method of VOCs a kind of, and the processing method uses upper
It either states in technical solution processing unit described in face and realizes, the treating method comprises following steps:
Active particle generates step, wherein applies the gas comprising VOCs in the process chamber by first electricity
The electric field that pole component and the second electrode component generate, so that the gas discharge generates active particle；
Hydroxyl radical free radical generate step, wherein the active particle act on be arranged in the process chamber described in point
Son sieve, so that the hydroxyl group of the molecular sieve is dissociated into hydroxyl radical free radical；And
Hydroxyl radical free radical aoxidizes VOCs step, wherein the hydroxyl radical free radical acts on the VOCs, so that the VOCs
Oxygenolysis.
It, can be by means of the effect of electric field so that gas discharge generates a large amount of active particle according to this programme.Active grain
Son can act on the hydroxyl group on molecular sieve, is dissociated into hydroxyl radical free radical, by means of the oxidisability of hydroxyl radical free radical
Can, by VOCs oxygenolysis at CO2And H2The small-molecule substances such as O.Processing method provided by the utility model can be effectively removed
VOCs, removal rate is high, and promotes the application of non-thermal plasma trap industrially.
Optionally, the processing unit further includes ultraviolet radiation apparatus, the processing method further include:
Ozone generates step, wherein the action of ultraviolet radiation of ultraviolet radiation apparatus radiation includes in the gas
O2, to make the O2Become ozone；And
Ozone oxidation VOCs step, wherein the ozonization is in the VOCs of the inside of the molecular sieve, so that described
VOCs oxygenolysis.
Optionally, the hydroxyl radical free radical oxidation VOCs step and the ozone oxidation VOCs step carry out simultaneously.
Optionally, further include the active particle generate step after VOCs scission of link step, wherein it is described activity grain
Son acts on the VOCs, so that the molecular structure of VOCs is destroyed because of scission of link.
Detailed description of the invention
The following drawings of the utility model is used to understand the utility model in this as a part of the utility model.Attached drawing
In show the embodiments of the present invention and its description, for explaining the device and principle of the utility model.In the accompanying drawings,
Fig. 1 is the stereoscopic schematic diagram according to the processing unit of the VOCs of preferred embodiments of the present invention；
Fig. 2 is another stereoscopic schematic diagram of processing unit shown in Fig. 1, and part-structure is shown；
Fig. 3 is the schematic side view of Fig. 2；
Fig. 4 is the stereoscopic schematic diagram of plasma modular assembly shown in Fig. 2, wherein removing the molecular sieve of a part
With second wall of a part；And
Fig. 5 be Fig. 4 shown in plasma modular assembly another stereoscopic schematic diagram, wherein remove molecular sieve and
Second wall of side.
Description of symbols
100: processing unit 110: shell
111a: device import 111b: device outlet
112: mounting portion 120: plasma modular assembly
121: process chamber 122: first electrode component
123a: the 123b: the second wall of second electrode component
123c: conductive connection plates 124: molecular sieve
125a: process chamber import 125b: process chamber outlet
126: dielectric 127: insulation board
128: binding post 129: supporting element
130: ultraviolet radiation apparatus 140: high-voltage power-supply unit
150: terminal box
Specific embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin
It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, detailed structure will be proposed in following description, it is practical to illustrate
It is novel.Obviously, the execution of the utility model is not limited to the specific details that the those skilled in the art are familiar with.This reality
It is described in detail as follows with novel better embodiment, however other than these detailed descriptions, the utility model can also have
Other embodiments should not be construed as being limited to embodiments set forth herein.
It should be understood that the purpose of term as used herein is only that description specific embodiment and not as this reality
With novel limitation, " one " of singular, "one" and " described/should " be also intended to include plural form, unless context is clear
Chu points out other mode.When the term " comprising " and/or " including " is used in this specification, indicate that there are the spies
Sign, entirety, step, operation, element and/or component, but do not preclude the presence or addition of one or more other features, entirety, step
Suddenly, operation, element, component and/or their combination.Term " on " used in the utility model, "lower", "front", "rear",
"left", "right" and similar statement for illustrative purposes only, not limit.
The cited such as ordinal number of " first " and " second " is only to identify in the utility model, without any
Other meanings, such as specific sequence etc..Moreover, for example, term " first component " itself does not imply that depositing for " second component "
Term " second component " does not imply that the presence of " first component " in itself.
Hereinafter, specific embodiment of the present utility model is described in more detail with reference to the accompanying drawings, these attached drawings show
The representative embodiment for having gone out the utility model is not to limit the utility model.
As shown in Figure 1 to Figure 3, the utility model provides the processing unit 100 of VOCs a kind of, in processing gas
VOCs, the VOCs being preferably adapted in processing exhaust gas are specifically adapted for the tool generated in processing industrial production and/or processing
There is the VOCs in the exhaust gas of Wind Volume, low concentration.Processing unit 100 is described by taking the VOCs in gas as an example below.
It should be noted that " gas " that is mentioned above includes VOCs.For example, can also have in gas comprising O2And H2O
Air." Wind Volume " mentioned herein refers to that the flow velocity of gas is larger, and " low concentration " refers to VOCs type organic in gas
Concentration is lower.
As shown in Figure 1, processing unit 100 is generally constructed to install to for example for the unit of gas treatment, system
Or in technique.Specifically, processing unit 100 include shell 110, shell 110 be provided be respectively used to gas disengaging device into
Mouth 111a and device export 111b.Gas can enter from device import 111a, after treatment from device outlet 111b outflow.
Preferably, the mounting portion 112 of such as flange is provided at device import 111a and device outlet 111b, in order to via device
Import 111a and device export 111b installation process device 100.
As shown in Fig. 2, processing unit 100 further includes plasma modular assembly 120 and for radiating the ultraviolet of ultraviolet light
Beta radiation equipment 130.Plasma modular assembly 120 is arranged within the case 110, for VOCs to be resolved into CO2And H2O etc. is small
Molecular substance.Ultraviolet radiation apparatus 130 can radiate ultraviolet light towards plasma modular assembly 120.Preferably, plasma
Module component 120 is low temperature plasma modular assembly.Plasma modular assembly 120 and ultraviolet light is described more fully below
Radiation device 130.
As shown in figure 4, plasma modular assembly 120 includes process chamber 121, first electrode component 122 and second electrode
Component 123a.Process chamber 121 is respectively used to the process chamber import of gas disengaging for handling the gas comprising VOCs, and being provided with
125a and process chamber export 125b.The gas entered in shell 110 enters in process chamber 121 from process chamber import 125a,
After treatment from process chamber outlet 125b outflow in process chamber 121.Specifically, process chamber import 125a approaching device import
111a, process chamber export 125b approaching device and export 111b.First electrode component 122 extends through process chamber 121.Second electrode
Component 123a is opposite with the current polarity that first electrode component 122 conducts.Such as first electrode component 122 is positive electrode member, the
Two electrode member 123a are negative electrode members.And second electrode component 123a formed process chamber 121 a part and with first electricity
Pole component 122 is close and is positioned apart from, so as to can generate electricity between first electrode component 122 and second electrode component 123a
, electric field is used to make the gas in process chamber 121 to generate active particle.
First electrode component 122 and second electrode component 123a can respectively with high-voltage power-supply unit 140 (Fig. 1) anode
It is electrically connected with cathode.High-voltage power-supply unit 140 is applied to the sufficiently high alternating voltage of above-mentioned two electrode member, to generate electric field
(extra electric field).The electric field can act on the gas in process chamber 121, so that gas discharge generates a large amount of active particle.
For example, active particle can be the particles such as high energy electron, ion or free radical.It should be noted that being participated in active particle
The mainly high energy electron of VOCs treatment process.
Plasma modular assembly 120 further includes the molecular sieve 124 with hydroxyl group.Specifically, the table of molecular sieve 124
Face has hydroxyl group abundant.Molecular sieve 124 is arranged in process chamber 121, to enable to hydroxyl group by above-mentioned activity
Particle is dissociated into hydroxyl radical free radical, and hydroxyl radical free radical is used for so that VOCs oxygenolysis.For convenient for showing specific structure, in Fig. 4
Illustrate only the state that a process chamber 121 loads molecular sieve 124, it is to be understood that other process chambers 121 also load molecule
Sieve 124.Specifically, hydroxyl group under the action of high energy electron with H2O reaction generates hydroxyl radical free radical.Hydroxyl radical free radical has
Extremely strong oxidisability, can act on VOCs, can effectively destroy the chemical structure and Surface chemical functional group of wood of VOCs, so that
VOCs oxygenolysis is at CO2And H2The small-molecule substances such as O.
124 one side of molecular sieve in present embodiment can provide hydroxyl group, so that under the action of active particle
It is dissociated into hydroxyl radical free radical, thus by VOCs oxygenolysis；On the other hand, molecular sieve 124 has microcellular structure, can effectively inhale
The organic molecules such as attached VOCs；In another aspect, filling molecular sieve 124 in process chamber 121 can make do not increasing process chamber 121
Under the premise of volume, significantly extend residence time of the VOCs in process chamber 121, so that VOCs molecule removal rate
Increase, while also can be improved CO2Selectivity, the generation of the by-products such as CO can be significantly reduced.
On the other hand, the active particle for the above-mentioned such as high energy electron that the processing unit 100 of present embodiment generates can also
VOCs is enough directly acted on, so that scission of link reaction occurs for VOCs, to make it easier to degrade, generates CO2And H2The small molecules object such as O
Matter.Specifically, under the action of extra electric field, the high energy electron that gas discharge generates bombards VOCs, it is possible to understand that can also bombard
Other molecules make them that the reactions such as ionization, dissociation, excitation occur.The ionization of molecule and atom can produce high energy electron, VOCs
Scission of link reaction can occur under the bombardment of high energy electron, molecular structure is destroyed, to make it easier to degrade, generates CO2
And H2The small-molecule substances such as O.It should be noted that VOCs is degraded into CO2And H2The process of the small-molecule substances such as O is in process chamber
It is realized in 121.
Preferably, molecular sieve 124 is lignin-base molecular sieve.Specifically, molecular sieve 124 can be passed through by natural lignin
The reaction process such as acetylating, silylation and polymerization are prepared, and hydroxyl group can be aggregated in acetyl group and silicon
In alkyl structure, so that hydroxyl group is present in large quantities in molecular sieve 124.The molecular sieve 124 of present embodiment can be Shen
Please number for CN201410769036.6 utility model patent in published lignin-base micro porous molecular sieve.As a result, relative to
Using the prior art of catalyst, the molecular sieve 124 of present embodiment can not only be generated to avoid by catalyst as region of discharge
Carbon deposition phenomenon；And catalyst belongs to noble metal, price is higher, and lignin is reproducible natural organic matter, is that one kind can
Regenerated cheap natural resources manufacture the raw material and advantage of lower cost of lignin-base molecular sieve.
Further, as shown in Figure 4 and Figure 5, plasma modular assembly 120 is configured to the shape of approximately cuboid.Extremely
Few two process chambers 121 are set in a row, and each of at least two process chambers 121 include first electrode component 122
With second electrode component 123a and be filled with molecular sieve 124.Illustrated embodiment shows multiple process chambers 121 into array cloth
It sets, specifically, process chamber 121 is arranged to eight rows along the length direction D1 of plasma modular assembly 120, in the width direction D2 cloth
It is set to two column.Certainly, if necessary to and/or expectation, process chamber 121 may be set to be one.
It should be noted that " the length direction D1 " that is mentioned above, " width direction D2 " and " short transverse D3 " is opposite
For electrode member is in the plasma modular assembly 120 under vertical placement status (Fig. 4), these direction terms are suitable for
Process chamber 121.And show electrode member in Fig. 2 and be in the plasma modular assembly 120 to lie low under placement status, i.e., relatively
Plasma modular assembly 120 in Fig. 4, which turns over, to be turn 90 degrees.
The plasma modular assembly 120 of present embodiment is configured to the hardened structure of line.Specifically, first electrode component 122
For positive electrode member, it is made of the conductive filament of wire etc..It is chosen as the nichrome wire of such as 0.4mm.First electrode structure
Part 122 extends along the short transverse D3 of process chamber 121.Second electrode component 123a is negative electrode member, by metal plate etc.
Conductive plate is made.It is chosen as the stainless steel plate of thickness such as 4mm.It should be noted that in Fig. 4, for the ease of showing first
Electrode member 122 and process chamber export 125b, and a part of second electrode component 123a is cut to form notch.First electrode structure
Part 122 and second electrode component 123a are arranged substantially in parallel.In this way relative to other types of plasma modular assembly 120,
The plasma modular assembly 120 of present embodiment is under identical electric field strength, and required voltage is smaller, in industrial application more
It is easy to accomplish.
Preferably, the spacing between first electrode component 122 and second electrode component 123a is no more than 100mm.Optionally,
Molecular sieve 124 can be between first electrode component 122 and second electrode component 123a.In other words, first electrode component
122 are located in molecular sieve 124.
Further, plasma modular assembly 120 further includes the dielectric 126 being arranged in process chamber 121, insulation
Medium 126 coat first electrode component 122 (illustratively cutting dielectric 126 and first electrode component 122 in Fig. 4, with
Convenient for showing the clad structure of the two).When applying sufficiently high alternating voltage on above-mentioned two electrode member, at the two
The direct gas of electrode member is breakdown, to form dielectric barrier discharge.It is on the one hand prevented in this way in discharge space formation office
Portion's spark or arc discharge, the electric discharge on the other hand enabling to gas uniform and stable.Dielectric 126 is formed as cladding first
The casing of electrode member 122, the casing are made of insulating materials such as polytetrafluoroethylene (PTFE).
Second electrode component 123a forms the first wall of process chamber 121 extended along short transverse D3.Specifically, the second electricity
Pole component 123a forms the first wall relative to each other.Second wall 123b of process chamber 121 connects with the first wall.Optionally, it handles
Room 121 is covered along the top and bottom of short transverse D3 by the insulation board 127 of such as ceramic wafer.Process chamber import 125a and processing
Room exports 125b and is arranged on insulation board 127.Insulation board 127 is also set up at process chamber import 125a and process chamber outlet 125b
Abacus.Gas passes in and out process chamber 121 via orifice plate.Orifice plate is removably disposed, in order to via process chamber import 125a or
Process chamber exports 125b and loads or remove molecular sieve 124.Specifically, insulation board 127 is horizontally disposed, process chamber import 125a setting
In the upper end of process chamber 121, the lower end of process chamber 121 is arranged in process chamber outlet 125b.Two ends of first electrode component 122
Portion respectively via process chamber import 125a and process chamber outlet 125b extend process chamber 121, in order to high-voltage power-supply unit
140 electrical connections.
When at least two process chambers 121 is arranged along its length, optionally, second electrode component 123a is along its length
Arrange to parallel interval, and be connected to each other by conductive connection plates 123c (Fig. 5), in order to via conductive connection plates 123c each other
It is conductive.Conductive connection plates 123c can be metal plate.In illustrated embodiment, conductive connection plates 123c is by adjacent process chamber
121 separate.It can be connect by way of card slot positioned at the first outermost wall with the second wall 123b.In order to facilitate electrical connection,
The end of one electrode member 122 can be connected by binding post 128.Further, the corner setting of plasma modular assembly 120
There is supporting element 129, to support binding post 128.Supporting element 129 is made of the insulating materials of such as ceramic wafer.
Further, referring back to Fig. 2, processing unit 100 further includes the ultraviolet radiation apparatus for radiating ultraviolet light
130, molecular sieve 124 is located at the radiation areas of ultraviolet light.Ultraviolet radiation apparatus 130 can radiation wavelength be 185nm it is ultraviolet
O2 in air can be transformed into ozone by line, the ultraviolet light.Ozone has strong oxidizing property, can penetrate into 124 hole of molecular sieve
Inside, the VOCs oxygenolysis inside molecular sieve 124 will be adsorbed on into H2O and CO2Equal small-molecule substances, compensate for due to filling out
Fill the deficiency that molecular sieve 124 weakens the penetration capacity of plasma (above-mentioned active particle) so that VOCs can to the greatest extent can
Energy completely removes.In addition, molecular sieve 124 can also make O3Residence time in reactor is longer, improves CO2Selectivity,
It reduces and generates the by-products such as CO.Ultraviolet radiation apparatus 130 can be preferably ultraviolet lamp.
Preferably, the outside of process chamber 121 is arranged in ultraviolet radiation apparatus 130, in order to by means of the second wall and under
Partition is stated to separate ultraviolet radiation apparatus 130 and process chamber 121.Make in this way gas only can by process chamber 121, without
Ultraviolet radiation apparatus 130 is flowed through, avoid makes the surface of ultraviolet radiation apparatus 130 generate pollution because gas passes through, from
And avoid ultraviolet light and substantially decay, extend the service life of ultraviolet radiation apparatus 130.Ultraviolet radiation apparatus 130 by
This can not need periodically to clean.
Specifically, the outer of the second wall 123b of process chamber 121 to connect with the first wall is arranged in ultraviolet radiation apparatus 130
Side.Under this embodiment, the second wall 123b is made of the material that can be passed through by ultraviolet light.For example, the second wall 123b can be with
It is made of the modified quartz glass plate of titanium elements.Penetrated bed using quartz glass plate as ultraviolet light makes ultraviolet light penetrance
80%~90% is reached as high as, the attenuation degree of 185nm band ultraviolet can be greatly reduced, improves the utilization rate of ultraviolet light.
Referring back to Fig. 2 and Fig. 3, at least one set of plasma modular assembly 120 and purple can be set in shell 110
UV radiation equipment 130.It can be by means of the partition of setting within the case 110 so that adjacent plasma modular assembly 120
It is separated with ultraviolet radiation apparatus 130.Furtherly, gas and ultraviolet radiation apparatus 130 can be separated by means of partition.
Illustrated embodiment shows and is provided with two groups of plasma modular assembly 120 and ultraviolet radiation apparatus in shell 110
130.In each group, ultraviolet radiation apparatus 130 is arranged in above and below plasma modular assembly 120.Each group
It is correspondingly arranged on the terminal box 150 and high-voltage power-supply unit 140 of ultraviolet lamp.High-voltage power-supply unit 140 can be power supply high voltage package.
Another aspect according to the present utility model additionally provides the processing method of VOCs a kind of, which uses upper
It either states in technical solution the processing unit 100 in face and realizes, processing method includes the following steps:
Active particle generates step, wherein applies the gas comprising VOCs in process chamber 121 by first electrode component
The electric field that 122 and second electrode component 123a is generated, so that gas discharge generates active particle；
Hydroxyl radical free radical generates step, wherein and active particle acts on the molecular sieve 124 being arranged in process chamber 121, with
The hydroxyl group of molecular sieve 124 is set to be dissociated into hydroxyl radical free radical；And
Hydroxyl radical free radical aoxidizes VOCs step, wherein hydroxyl radical free radical acts on VOCs, so that VOCs oxygenolysis.
Processing method provided by the utility model, can be by means of the effect of electric field so that gas discharge generates a large amount of live
Property particle.Active particle can act on the hydroxyl group on molecular sieve 124, is dissociated into hydroxyl radical free radical, by means of hydroxyl
The oxidation susceptibility of base free radical, by VOCs oxygenolysis at CO2And H2The small-molecule substances such as O.Processing side provided by the utility model
Method can be effectively removed VOCs, and removal rate is high, and promotes the application of non-thermal plasma trap industrially.
Processing method further includes that ozone generates step and ozone oxidation VOCs step.It is generated in step in ozone, ultraviolet light
The O that the action of ultraviolet radiation that radiation device 130 radiates includes in gas2, to make O2Become ozone；
In ozone oxidation VOCs step, ozonization is in the VOCs of the inside of molecular sieve 124, so that VOCs oxidation point
Solution.
Hydroxyl radical free radical oxidation VOCs step and ozone oxidation VOCs step substantially carry out simultaneously.In other words, plasma
Module component 120 and ultraviolet radiation apparatus 130 can generate synergistic effect, so that the hydroxyl radical free radical generated and generation
Ozone substantially can act on VOCs simultaneously, to improve the removal rate of VOCs.
Processing method further includes the VOCs scission of link step after active particle generates step, wherein active particle effect
In VOCs, so that the molecular structure of VOCs is destroyed because of scission of link, consequently facilitating VOCs degrades, CO is generated2And H2The small molecules such as O
Substance.
The other contents such as the specific mode of action, principle and effect involved in various processes are upper in present embodiment
It states and is described in detail in the description content of processing unit 100, details are not described herein.
Unless otherwise defined, the technology of technical and scientific term used herein and the technical field of the utility model
The normally understood meaning of personnel is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limit
The utility model processed.The terms such as herein presented " portion ", " part " can both indicate single part, can also indicate more
The combination of a part.The terms such as herein presented " installation ", " setting " can both indicate that a component was attached directly to
Another component can also indicate that a component is attached to another component by middleware.Herein in an embodiment
Described in feature can be applied in combination another embodiment individually or with other features, unless this feature is another at this
It is not suitable for or is otherwise noted in one embodiment.
The utility model is illustrated by above embodiment, but it is to be understood that, above embodiment
It is only intended to the purpose illustrated and illustrated, and is not intended to limit the invention within the scope of described embodiment.This
Outside it will be appreciated by persons skilled in the art that the utility model is not limited to above embodiment, according to the utility model
Introduction can also make more kinds of variants and modifications, it is claimed that these variants and modifications all fall within the utility model
Within range.The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims (10)
1. a kind of processing unit of VOCs, which is characterized in that including plasma modular assembly, the plasma modular assembly
Include:
Process chamber, for the process chamber for handling the gas comprising VOCs, the process chamber, which is provided with, is respectively used to the gas
The process chamber import of disengaging and process chamber outlet；
First electrode component, the first electrode component extend through the process chamber；
The current polarity of second electrode component, the second electrode component and first electrode component conduction is on the contrary, and institute
It states second electrode component and forms a part of the process chamber and close with first electrode component and be positioned apart from, so that described
Electric field can be generated between first electrode component and second electrode component, the electric field is for producing the gas in the process chamber
Liveliness proof particle；And
Molecular sieve, the molecular sieve has hydroxyl group and is arranged in the process chamber, to enable to the hydroxyl group
Hydroxyl radical free radical is dissociated by the active particle, the hydroxyl radical free radical is used for so that the VOCs oxygenolysis.
2. processing unit according to claim 1, which is characterized in that the molecular sieve is lignin-base molecular sieve.
3. processing unit according to claim 1, which is characterized in that the processing unit further includes for radiating ultraviolet light
Ultraviolet radiation apparatus so that the ultraviolet light is by the O in the gas2Become ozone, the molecular sieve is located at the purple
The radiation areas of outside line, so that the ozone makes the VOCs oxygenolysis of the inside of the molecular sieve.
4. processing unit according to claim 3, which is characterized in that the ultraviolet radiation apparatus is arranged in the processing
The outside of room.
5. processing unit according to claim 3, which is characterized in that height of the first electrode component along the process chamber
It spends direction to extend, the second electrode component forms the first wall of the process chamber extended along the short transverse.
6. processing unit according to claim 5, which is characterized in that the ultraviolet radiation apparatus is arranged in the processing
The outside for the second wall of room to connect with first wall, second wall are made of the quartz glass plate that titanium elements are modified.
7. processing unit according to claim 1, which is characterized in that the plasma modular assembly further includes that setting exists
Dielectric in the process chamber, the dielectric coat the first electrode component.
8. processing unit according to claim 1, which is characterized in that the first electrode component is positive electrode member, described
Second electrode component is negative electrode member.
9. processing unit according to claim 1, which is characterized in that at least two process chambers are set in a row, and
Each of described at least two process chamber includes the first electrode component and the second electrode component and is filled with
The molecular sieve.
10. processing unit according to claim 3, which is characterized in that the processing unit further includes shell, the shell
It is provided with the device import for being respectively used to gas disengaging and device outlet, at least one set of plasma modular assembly and institute
It is disposed in the housing to state ultraviolet radiation apparatus.
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| CN201821512953.6U CN209108899U (en) | 2018-09-14 | 2018-09-14 | The processing unit of VOCs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898632A (en) * | 2018-09-14 | 2020-03-24 | 中国船舶重工集团公司第七一一研究所 | VOCs treatment device and VOCs treatment method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898632A (en) * | 2018-09-14 | 2020-03-24 | 中国船舶重工集团公司第七一一研究所 | VOCs treatment device and VOCs treatment method |
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Effective date of registration: 20201228 Address after: 201108 building 6, 4299 Jindu Road, Minhang District, Shanghai Patentee after: Shanghai Qiyao Environmental Protection Technology Co.,Ltd. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: China Shipbuilding Industry Corporation 711 Research Institute |