CN106823707A - A kind of low-temperature plasma emission-control equipment - Google Patents
A kind of low-temperature plasma emission-control equipment Download PDFInfo
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- CN106823707A CN106823707A CN201710091582.2A CN201710091582A CN106823707A CN 106823707 A CN106823707 A CN 106823707A CN 201710091582 A CN201710091582 A CN 201710091582A CN 106823707 A CN106823707 A CN 106823707A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 113
- 238000001914 filtration Methods 0.000 claims abstract description 38
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000008439 repair process Effects 0.000 abstract description 3
- 210000002381 plasma Anatomy 0.000 description 114
- 239000007789 gas Substances 0.000 description 45
- 239000002912 waste gas Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 17
- 238000000746 purification Methods 0.000 description 12
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 150000003254 radicals Chemical class 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 239000013543 active substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000007523 nucleic acids Chemical class 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- -1 Superoxide anion free radical Chemical class 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
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Classifications
-
- 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
-
- 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)
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- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The present invention relates to a kind of low-temperature plasma emission-control equipment, including filtering module in housing, housing, low-temperature plasma reaction module and NACF filtering module.Low-temperature plasma reaction module includes the first fixed plate, the second fixed plate and interval setting n low-temperature plasma reaction tube between, first fixed plate of n low-temperature plasma reaction tube insertion and the second fixed plate and the flow path along fluid extends.The n low-temperature plasma reaction tube including the negative electrode outer tube for concentric structure, dielectric inner tube and the anode stub being arranged in dielectric inner tube, annular gap is provided between negative electrode outer tube and dielectric inner tube.Anode stub is fixed on anode rod bracket.It is helically stepped to be uniformly distributed some electric discharge fine hair of metal material on the outer wall of the anode stub.Emission-control equipment of the invention is not only simple in structure, low cost of manufacture, exhaust-gas treatment effect are good, and operation, repairs very convenient.
Description
Technical field
The present invention relates to the technical field of exhaust-gas treatment, more particularly to a kind of low-temperature plasma emission-control equipment.
Background technology
In recent years, with expanding economy, chemical enterprise largely newly rises, and the dynamics of environmental protection of enterprise investment not enough result in
The discharge of a large amount of industrial organic exhaust gas, causes atmosphere quality to decline, and serious harm is carried out to human body health care belt, it is therefore desirable to plus
The big treatment to organic exhaust gas.At present, generally used during the treatment of organic exhaust gas organic exhaust gas active-carbon adsorption treatment method,
Production by Catalytic Combustion Process, catalytic oxidation, acid-base neutralization method etc., but above-mentioned waste gas processing method has for treatment low concentration, big flow
Machine waste gas is still present the problem that transformation efficiency is low, clean-up effect is poor.Volatile organic matter is processed using non-thermal plasma trap
It is the technology of rising in recent years, it can solve the above-mentioned indeterminable problem of traditional organic waste gas treatment method.
Low temperature plasma is the state of material the 4th after solid-state, liquid, gaseous state, when applied voltage reaches putting for gas
During piezoelectric voltage, gas is breakdown, produces including the mixture including electronics, various ions, atom and free radical.In discharge process
Although electron temperature is very high, heavy particle temperature is very low, and whole system is presented low-temperature condition, so referred to as low temperature plasma.
Low-temperature plasma degradation pollutant is made using the pollutant in these high energy electrons, free radical isoreactivity particle and waste gas
With making contaminant molecule be decomposed within the extremely short time, and follow-up various reactions occur to reach degradation of contaminant
Purpose.
Dielectric barrier discharge (dielectric barrier discharge, DBD) plasma is that a kind of hyperbar is low
Warm nonequilibrium plasma, because it can be produced under conditions of atmospheric pressure or superatmospheric, it is not necessary to which vacuum equipment is just
Active particle needed for being chemically reacted at a lower temperature.DBD plasma reactions area is rich in high material, such as
High energy electron, ion, free radical and excited state molecule etc., the non-thermal plasma trap phase produced with traditional corona discharge situation
Compare, DBD plasma technique discharge capacities are 50 times of corona discharge, power-discharging density is 130 times of corona discharge.So, pass
System lower temperature plasma technology is normally only used for the improvement of room air peculiar smell, compared with other lower temperature plasma technologies, DBD
Plasma technique is applied to industrial low concentration, big flow VOCs treatment has obvious advantage.
Low-temperature plasma waste gas treatment equipment of the prior art, general prickle-flat electric discharge using parallel surface formula
Structure, although this structure exhaust-gas treatment flow is big, it is not ideal enough for the clean-up effect of waste gas.
The content of the invention
For a kind of low-temperature plasma emission-control equipment that the above mentioned problem of prior art, the present invention are provided, the waste gas
Processing unit is not only simple in structure, low cost of manufacture, exhaust-gas treatment effect are good, and operation, repairs very convenient.
In order to solve the above-mentioned technical problem, the technical solution used in the present invention is：
A kind of low-temperature plasma emission-control equipment, including housing and it is separately positioned on the air inlet at the housing two ends
And gas outlet, it is additionally included in filtering module, low-temperature plasma reaction module and the NACF set gradually in the housing
Filtering module, wherein,
The low-temperature plasma reaction module includes the first fixed plate, the second fixed plate and is disposed on described first
N low-temperature plasma reaction tube between fixed plate and the second fixed plate, described in the n low-temperature plasma reaction tube insertion
One fixed plate and the second fixed plate and the flow path along fluid extend,
The n low-temperature plasma reaction tube includes negative electrode outer tube, dielectric inner tube and anode stub, the anode stub
It is arranged in dielectric inner tube, annular gap is provided between the negative electrode outer tube and dielectric inner tube, with by described low
The radial section of warm plasma reaction pipe, the anode stub, negative electrode outer tube and dielectric inner tube are concentric structure,
The low-temperature plasma reaction module also includes the anode rod bracket for fixing the anode stub, the anode stub
Support is arranged in first fixed plate, and the anode rod bracket has n support column, and the anode stub is sheathed on described
On n support column,
It is helically stepped to be uniformly distributed some electric discharge fine hair of metal material on the outer wall of the anode stub.
Further, the n support column of the anode rod bracket is in latticed arrangement so that each adjacent described low
Keep identical spacing between warm plasma reaction pipe, the anode rod bracket is by being arranged at the bolt and insulator reality of its corner
Existing being fixedly connected between first fixed plate.
Further, the dielectric inner tube is SiO2Or ceramic material.
Further, in the housing at least provided with two low-temperature plasma reaction modules, and the low temperature etc.
Ionic reaction modular spacing is set.
Further, the electric discharge fine hair is the spicule of chrome-nickel material.
Preferably, the low-temperature plasma reaction module is detachable is arranged in the housing.
Preferably, the one side of the housing is welded with hermatic door, and the inside of the housing is fixed with a plurality of with the low temperature
The draw-in groove that first fixed plate and the second fixed plate of plasma reaction module are engaged, the low-temperature plasma reaction module passes through
The mode for pulling and pushing is connected in the housing.
Preferably, the filtering module is set near the air inlet, and the NACF filtering module is near described
Gas outlet is set, and frequency conversion fan is provided between the air inlet and the filtering module.
Preferably, the filtering module includes filter outer inframe and the stainless (steel) wire being arranged in the filter outer inframe, described
Fiber filtering filter layer is provided with stainless (steel) wire.
A kind of low-temperature plasma emission-control equipment of the invention, has the advantages that：
1st, low-temperature plasma emission-control equipment of the invention includes filtering module, low-temperature plasma reaction module and activity
Carbon fibe filtering module three-level cleaning module, integrates dedusting, purification and sterilization.
2nd, because low-temperature plasma reaction module of the invention includes the first fixed plate, the second fixed plate and interval setting
The n low-temperature plasma reaction tube between the first fixed plate and the second fixed plate, the n low-temperature plasma reaction tube insertion
First fixed plate and the second fixed plate and the flow path along fluid extend, and the n low-temperature plasma reaction tube is equal
Including negative electrode outer tube, dielectric inner tube and anode stub, the anode stub is arranged in the dielectric inner tube, the negative electrode
Annular gap is provided between outer tube and dielectric inner tube, it is described with by the radial section of the low-temperature plasma reaction tube
Anode stub, negative electrode outer tube and dielectric inner tube are concentric structure.When extraneous high voltage power supply is powered, in dielectric inner tube
The anode stub surface of both sides and the inner surface of negative electrode outer tube form dielectric impedance plasma discharge, and organic exhaust gas molecule is discharged
The collision of ion becomes small molecule and further reacts with these discharge ions, and then becomes non-toxic gas so that waste gas
Degraded well in reason device in this place, good purification.
The whole process reaction of appeal is fast, and speed limit system of not being bullied, operation is extremely simple, and gas is low by concentric structure
The bearing of trend of warm plasma reaction pipe is parallel with the flow path of waste gas i.e. in the same direction, therefore, vapour lock is small, it is adaptable to high flow rate,
The exhaust-gas treatment of Wind Volume.
3rd, the anode rod bracket for fixing the anode stub, the anode are also included due to low-temperature plasma reaction module
Rod bracket is arranged in first fixed plate, and the anode rod bracket has n support column, and the anode stub is sheathed on institute
State on n support column, therefore can be sheathed on support column according to the content selection of organic pollution in waste gas in actual production
Anode stub quantity, such that it is able to good reducing energy consumption, energy saving.
4th, it is helically stepped to be uniformly distributed some electric discharge fine hair of metal material due on the outer wall of anode stub, from
And the breakdown probability of positive and negative electrode is greatly reduced, effectively raise the clean-up effect of waste gas.
5th, it is further, at least provided with two low-temperature plasma reaction modules, and the low temperature in the housing
Plasma reaction modular spacing set, waste gas by previous low-temperature plasma reaction module out after, can be in two low temperature etc.
Gas distribution again is carried out in space between ionic reaction module, the waste gas after distribution travels further into latter low temperature etc.
Ionic reaction module, the setting of multiple low-temperature plasma reaction modules and the reallocation of gas are conducive to improving the purification of waste gas
Effect.And when low-temperature plasma reaction module it is detachable when being arranged in the housing, can also according to production reality
Situation, selection is placed on the low-temperature plasma reaction module in housing, is beneficial to saving energy consumption.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, below will be to being wanted needed for embodiment or description of the prior art
The accompanying drawing for using is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, it is right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Its accompanying drawing.
Fig. 1 is a kind of structural representation of low-temperature plasma emission-control equipment of the embodiment of the present invention 1；
Fig. 2 is the partial perspective view of the low-temperature plasma reaction module in the embodiment of the present invention 1；
Fig. 3 is the left view of the low-temperature plasma reaction module in the embodiment of the present invention 1；
Fig. 4 is the structural representation of the low-temperature plasma reaction tube in the embodiment of the present invention 1；
Fig. 5 is the structural representation one of the housing in the embodiment of the present invention 1；
Fig. 6 is the structural representation two of the housing in the embodiment of the present invention 1；
Fig. 7 is a kind of structural representation of the low-temperature plasma emission-control equipment in the embodiment of the present invention 2.
In figure：1- housings, 2- filtering modules, 3- low-temperature plasma reaction modules, 4- NACF filtering modules, 5- becomes
Frequency blower fan, 11- air inlets, 12- gas outlets, 13- hermatic doors, 14- draw-in grooves, the fixed plates of 31- first, the fixed plates of 32- second, 33-
Low-temperature plasma reaction tube, 34- anode stubs, 35- anode rod brackets, 36- insulators, 37- bolts, 331- negative electrode outer tubes, 332-
Dielectric inner tube, 341- electric discharge fine hair, 342- rainhats, 332a- cross handgrips.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " on ", D score, " top ", " bottom ", " interior ", " outward " etc. indicate
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplification retouch
State, rather than indicate imply signified device or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.Additionally, term " comprising " and " having " and their any deformation, it is intended that
In cover it is non-exclusive include, for example, the process, method, system, product or the equipment that contain series of steps or unit need not
Be limited to those steps clearly listed or unit, but may include not list clearly or for these processes, method,
Product or other intrinsic steps of equipment or unit.
Embodiment 1
A kind of low-temperature plasma emission-control equipment that the present embodiment is provided, the emission-control equipment is not only simple in structure,
Low cost of manufacture, exhaust-gas treatment effect are good, and operate, repair very convenient.
Fig. 1 to Fig. 4 please be participate in, wherein Fig. 1 shows for a kind of structure of low-temperature plasma emission-control equipment of the present embodiment
It is intended to；Fig. 2 show the partial perspective view of the low-temperature plasma reaction module in the present embodiment；Fig. 3 is shown in the present embodiment
Low-temperature plasma reaction module left view；Fig. 4 is the structural representation of the low-temperature plasma reaction tube in the present embodiment.
As shown in Figure 1, the low-temperature plasma emission-control equipment of the present embodiment includes housing 1, according to the flowing side of gas
To the rear end of housing 1 is provided with air inlet 11, and the front end of housing 1 is provided with gas outlet 12, and pending waste gas is entered by air inlet 11
In housing and by treatment, purified gas is discharged by gas outlet 12.The shape of housing 1 is unrestricted, it is contemplated that general useless
The volume flow of gas is larger, and the present embodiment is preferred, and housing 1 is shaped into cuboid, has both been easy to manufacture to also allow for peace
Dress and transport.
Housing 1 limits an inner space, and by air inlet 11 to gas outlet 12, the inner space is disposed with filtering
Module 2, low-temperature plasma reaction module 3 and NACF filtering module 4.
Filtering module 2 is mainly used in the large granular impurities such as the dust in removing exhaust gas, prevents because impurity absorption is in electrode
Outer surface and reduce strength of discharge.The present embodiment is preferred, and the filtering module 2 includes filter outer inframe and is arranged on the mistake
The stainless (steel) wire of the outer inframe of filter, is provided with fiber filtering filter layer on the stainless (steel) wire.
Visible with reference to Fig. 1 and Fig. 2, the low-temperature plasma reaction module 3 includes the first fixed plate 31, the second fixed plate 32
And it is disposed on n low-temperature plasma reaction tube 33 between the fixed plate 32 of first fixed plate 31 and second, the n
First fixed plate 31 described in the insertion of individual low-temperature plasma reaction tube 33 and the second fixed plate 32 and the flow path along fluid are prolonged
Stretch.
The n low-temperature plasma reaction tube 33 includes negative electrode outer tube 331, dielectric inner tube 332 and anode stub 34,
The anode stub 34 is arranged in the dielectric inner tube 332, between the negative electrode outer tube 331 and dielectric inner tube 332
Annular gap is provided with, with by the radial section of the low-temperature plasma reaction tube, the anode stub 34, the and of negative electrode outer tube 331
Dielectric inner tube 332 is concentric structure.
Fig. 2 is referred to, negative electrode outer tube 331 and dielectric inner tube 332 are sleeve type structure, its one end of negative electrode outer tube 331
Outer rim is seamless with first baffle 31 to be connected, and other end outer rim is seamless with second baffle 32 to be connected.Dielectric inner tube 332
Be arranged in negative electrode outer tube 331, and the central axis of the two, in order to ensure negative electrode outer tube 331 and dielectric inner tube 332 it
Between gas passage and realize the fixation of dielectric inner tube 332, the present embodiment is preferred, in the gas of edge medium inner tube 332
Entrance point is provided with cross handgrip 332a, and cross handgrip 332a can be firmly connected in the first fixed plate 31, so as to by edge
Medium inner tube 332 is fixed in negative electrode outer tube 331.
As shown in figure 3, the low-temperature plasma reaction module 3 of the present embodiment reacts comprising 8 low-temperature plasmas into array
Pipe 33.
It is considered that general industry waste gas is respectively provided with certain temperature, in order to strengthen the emission-control equipment of the present embodiment
Heat resistance, it is preferred that the dielectric inner tube is SiO2Or ceramic material.
It is helically stepped to be uniformly distributed some electric discharge fine hair 341 of metal material on the outer wall of the anode stub 34,
As shown in Figure 1 and Figure 4.The present embodiment is preferred, and the electric discharge fine hair 341 is the spicule of chrome-nickel material.
From said structure, the flow channel of waste gas includes the ring between negative electrode outer tube 331 and dielectric inner tube 332
Hollow cavity in shape gap and dielectric inner tube 332.Enter this emission-control equipment and by filtering module 2 when waste gas
Treatment after, under the stop of the first fixed plate 31, waste gas it is restrained by 8 low-temperature plasma reaction tubes 33 in figure
It is interior, in specific annular gap and dielectric inner tube 332 between negative electrode outer tube 331 and dielectric inner tube 332
Hollow cavity, in the presence of the high voltagehigh frequency electric field as produced by power supply, negative electrode outer tube 331 and dielectric inner tube 332 it
Between annular gap and in dielectric inner tube 332 hollow cavity inside produce low-temperature plasma figure.It is low under the state
The inside of warm plasma reaction pipe 33 is full of active matters high such as a large amount of high energy electrons, ion, excited atom and free radical particles
Pollutant in matter, these high active substances and waste gas carries out the physical-chemical reaction of a series of complex, by the chemistry of pollutant
Key is opened and oxidation Decomposition pollutant, reaches the purpose of removal.
The low-temperature plasma reaction module 3 also includes the anode rod bracket 35 for fixing the anode stub 34, described
Anode rod bracket 35 is arranged in first fixed plate 31, and there is the anode rod bracket 35 n support column (not drawn in figure
Go out), according to the present embodiment, wherein n is 8.The anode stub 34 is sheathed on the n support column, the bottom of the anode stub 34
Portion is provided with rainhat 342.
Used as a kind of optional implementation method, the n support column of the anode rod bracket 35 is in latticed arrangement, is made
Keep identical spacing between each adjacent low-temperature plasma reaction tube 33, the anode rod bracket 35 is by being arranged at it
The bolt 37 and insulator 36 of corner realize being fixedly connected between first fixed plate 31.
For the ease of repairing and changing, it is preferred that the low-temperature plasma reaction module 3 it is detachable be arranged on it is described
In housing 1.
Used as a kind of optional implementation method, the one side of the housing 1 is provided with hermatic door, and the inside of the housing 1 is consolidated
Surely there is a plurality of draw-in groove 14 being engaged with first fixed plate 31 and the second fixed plate 32 of the low-temperature plasma reaction module 3,
The position of the draw-in groove 14 is tried one's best at hermatic door 13, and to facilitate operation, the low-temperature plasma reaction module 3 passes through what is pulled and pushed
Mode is connected in the housing 1.As shown in Figure 5 and Figure 6, hermatic door 13 is provided with the side of housing 1, multiple draw-in grooves 14 are distinguished
Inwall the upper side and lower side of housing 1 is arranged on, it is necessary to when changing or repairing, the hermatic door of housing 1 is opened, outwards take out low temperature etc. from
Sub- reaction module 3 can be drawn off.It will of course be understood that, alternatively optional implementation method can be by housing 1
Top surface be set to openable seal door structure, the left and right side of housing 1 inwall set with low-temperature plasma reaction module 3
The first fixed plate 31 and the draw-in groove 14 that is engaged of the second fixed plate 32, in this way, low-temperature plasma can be reacted into mould from top
Block 3 takes out.Low-temperature plasma reaction module 3 can also be arranged in housing 1 using other removablies, the present embodiment pair
This is not particularly limited.
It should be understood that filtering module 2 and NACF filtering module 4 can also be set using above-mentioned removably
Put.
When the low-temperature plasma emission-control equipment of the present embodiment works, high voltage power supply, low-temperature plasma reaction mould are connected
Block 3 is powered, and waste gas enters this equipment through air inlet 11, is first subjected to big of the first class purification of filtering module 2, dust therein etc.
Grain impurity is intercepted by filtering module 2, and the gas after first class purification touches low-temperature plasma reaction module 3, due to being subject to
The stop of the first fixed plate 31, gas is allocated and enters in reaction tube 33, is specifically negative electrode outer tube in reaction tube 33
The hollow cavity in annular gap and dielectric inner tube 332 between 331 and dielectric inner tube 332, by power supply institute
In the presence of the high voltagehigh frequency electric field of generation, annular gap and insulation between negative electrode outer tube 331 and dielectric inner tube 332
Hollow cavity inside in medium inner tube 332 produces low-temperature plasma figure.Under the state, inside low-temperature plasma reaction tube 33
Full of a large amount of high energy electrons, ion, excited atom and free radical (such as Superoxide anion free radical) particle high active substance,
Pollutant in these high active substances and waste gas carries out the physical-chemical reaction of a series of complex, and the chemical bond of pollutant is beaten
Open and oxidation Decomposition pollutant, reach the purpose of removal.Additionally, high energy electron can also crack the molecular link of bacterium in waste gas, break
The nucleic acid (DNA) of bad bacterium, and Superoxide anion free radical (O2-、O-) combined with oxygen molecule and can further produce ozone, broken
The nucleic acid of bad bacterium again by the oxidation reaction of ozone, so as to reach purification and kill the purpose of bacterium；Low-temperature plasma is anti-
Answer module 3 to play important secondary purification to act on, by the gas after secondary purification before being discharged through gas outlet 12 through making a living
The purification again and sterilization of property Carbon fibe filtering module 4.
The low-temperature plasma emission-control equipment of the present embodiment has following beneficial effect：
Low-temperature plasma emission-control equipment of the invention includes filtering module, low-temperature plasma reaction module and activated carbon
Fiber filter module three-level cleaning module, integrates dedusting, purification and sterilization；
Because low-temperature plasma reaction module of the invention includes the first fixed plate, the second fixed plate and is disposed on
N low-temperature plasma reaction tube between first fixed plate and the second fixed plate, the n low-temperature plasma reaction tube insertion institute
State the first fixed plate and the second fixed plate and the flow path along fluid extends, the n low-temperature plasma reaction tube is wrapped
Negative electrode outer tube, dielectric inner tube and anode stub are included, the anode stub is arranged in the dielectric inner tube, outside the negative electrode
Annular gap is provided between pipe and dielectric inner tube, with by the radial section of the low-temperature plasma reaction tube, the sun
Pole rod, negative electrode outer tube and dielectric inner tube are concentric structure.When extraneous high voltage power supply is powered, in dielectric inner tube two
The inner surface of the anode stub surface of side and negative electrode outer tube forms dielectric impedance plasma discharge, organic exhaust gas molecule discharged from
The collision of son becomes small molecule and further reacts with these discharge ions, and then becomes non-toxic gas so that waste gas exists
Degraded well in the processing unit, good purification.The whole process reaction of appeal is fast, speed limit system of not being bullied, operation
Extremely simple, the bearing of trend of the low-temperature plasma reaction tube that gas passes through concentric structure is parallel with the flow path of waste gas i.e.
In the same direction, therefore, vapour lock is small, it is adaptable to high flow rate, the exhaust-gas treatment of Wind Volume；
Also include the anode rod bracket for fixing the anode stub, the anode stub due to low-temperature plasma reaction module
Support is arranged in first fixed plate, and the anode rod bracket has n support column, and the anode stub is sheathed on described
On n support column, therefore can be sheathed on support column according to the content selection of organic pollution in waste gas in actual production
The quantity of anode stub, such that it is able to good reducing energy consumption, energy saving.
It is helically stepped to be uniformly distributed some electric discharge fine hair of metal material due on the outer wall of anode stub, so that
The breakdown probability of positive and negative electrode is greatly reduced, the clean-up effect of waste gas is effectively raised.
Embodiment 2
A kind of low-temperature plasma emission-control equipment of the present embodiment includes housing 1 and is separately positioned on the housing 1
The air inlet 11 at two ends and gas outlet 12, the emission-control equipment are additionally included in the filtering module set gradually in the housing 1
2nd, photochemical catalytic oxidation module 3 and NACF filtering module 4, wherein, the low-temperature plasma reaction module 3 includes that first consolidates
Fixed board 31, the second fixed plate 32 and n low temperature being disposed between the fixed plate 32 of first fixed plate 31 and second
Plasma reaction pipe 33, the first fixed plate 31 described in the n low-temperature plasma reaction tube 33 insertion and the second fixed plate 32 and
Flow path along fluid extends.
The n low-temperature plasma reaction tube 33 includes negative electrode outer tube 331, dielectric inner tube 332 and anode stub 34,
The anode stub 34 is arranged in the dielectric inner tube 332, between the negative electrode outer tube 331 and dielectric inner tube 332
Annular gap is provided with, with by the radial section of the low-temperature plasma reaction tube, the anode stub 34, the and of negative electrode outer tube 331
Dielectric inner tube 332 is concentric structure.
The low-temperature plasma reaction module 3 also includes the anode rod bracket 35 for fixing the anode stub 34, described
Anode rod bracket 35 is arranged in first fixed plate 31, and there is the anode rod bracket 35 n support column (not drawn in figure
Go out), according to the present embodiment, wherein n is 8.The anode stub 34 is sheathed on the n support column, the bottom of the anode stub 34
Portion is provided with rainhat 342.
It is helically stepped to be uniformly distributed some electric discharge fine hair 341 of metal material on the outer wall of the anode stub 34.
The present embodiment is preferred, and the electric discharge fine hair 341 is the spicule of chrome-nickel material.
As one kind preferred embodiment, at least provided with two low-temperature plasmas reaction moulds in the housing 1
Block 3, and the interval setting of low-temperature plasma reaction module 3, as shown in Figure 1.In filtering module 2 and NACF filter module
Two low-temperature plasma reaction modules 3 are provided between block 4, and it is spaced apart therebetween, the clearance space can be used for gas
The secondary distribution of body.It is, of course, also possible to the low-temperature plasma reaction module 3 of 3 or more is set in housing 1, but excessively
The floor space on the one hand increasing equipment is set, still further aspect increased total gas flow resistance.The present embodiment, preferably
, two low-temperature plasma reaction modules 3 of interval setting.
Waste gas by previous low-temperature plasma reaction module out after, can be between two low-temperature plasma reaction modules
Space in carry out again gas distribution, the waste gas after distribution travels further into latter low-temperature plasma reaction module, many
The setting of individual low-temperature plasma reaction module and the reallocation of gas are conducive to improving the clean-up effect of waste gas.And work as low temperature etc.
Ionic reaction module is detachable to be arranged on when in the housing, can also be placed on according to the actual conditions of production, selection
Low-temperature plasma reaction module in housing, is beneficial to saving energy consumption.
In order to increase residence time of the gas in emission-control equipment, clean-up effect is improved, this implementation is further,
The filtering module 2 is set near the air inlet 11, and the NACF filtering module 4 sets near the gas outlet 12
Put, frequency conversion fan 5 is provided between the air inlet 11 and the filtering module 2, as shown in Figure 7.Frequency conversion fan 5 can be according to reality
The change of air quantity in the production process of border, regulation enters the gas stream of the light low-temperature plasma reactor off-gas processing unit of the present embodiment
Amount, such that it is able to adjust residence time of the gas in emission-control equipment, and then can be very good to control the purification effect of waste gas
Really.
Used as a kind of optional implementation method, the n support column of the anode rod bracket 35 is in latticed arrangement, is made
Keep identical spacing between each adjacent low-temperature plasma reaction tube 33, the anode rod bracket 35 is by being arranged at it
The bolt 37 and insulator 36 of corner realize being fixedly connected between first fixed plate 31.
Described above fully discloses specific embodiment of the invention.It is pointed out that being familiar with the field
Scope of any change that technical staff is done to specific embodiment of the invention all without departing from claims of the present invention.
Correspondingly, the scope of claim of the invention is also not limited only to previous embodiment.
Claims (9)
1. a kind of low-temperature plasma emission-control equipment, including housing (1) and entering for the housing (1) two ends is separately positioned on
Gas port (11) and gas outlet (12), it is characterised in that be additionally included in the housing (1) filtering module (2), low for setting gradually
Warm plasma reaction module (3) and NACF filtering module (4), wherein,
The low-temperature plasma reaction module (3) is including the first fixed plate (31), the second fixed plate (32) and is disposed on
N low-temperature plasma reaction tube (33) between first fixed plate (31) and the second fixed plate (32), described n low temperature etc.
First fixed plate (31) described in ionic reaction pipe (33) insertion and the second fixed plate (32) and the flow path along fluid extend,
The n low-temperature plasma reaction tube (33) includes negative electrode outer tube (331), dielectric inner tube (332) and anode stub
(34), the anode stub (34) is arranged in the dielectric inner tube (332), the negative electrode outer tube (331) and dielectric
Inner tube is provided with annular gap between (332), with by the radial section of the low-temperature plasma reaction tube, the anode stub
(34), negative electrode outer tube (331) and dielectric inner tube (332) are concentric structure,
The low-temperature plasma reaction module (3) also includes the anode rod bracket (35) for fixing the anode stub (34), institute
State anode rod bracket (35) to be arranged on first fixed plate (31), the anode rod bracket (35) is with n support column, institute
Anode stub (34) is stated to be sheathed on the n support column,
It is helically stepped to be uniformly distributed some electric discharge fine hair (341) of metal material on the outer wall of the anode stub (34).
2. a kind of low-temperature plasma emission-control equipment according to claim 1, it is characterised in that the anode rod bracket
(35) the n support column is in latticed arrangement so that kept between each adjacent low-temperature plasma reaction tube (33)
Identical spacing, the anode rod bracket (35) is realized and described the by being arranged at the bolt (37) and insulator (36) of its corner
Being fixedly connected between one fixed plate (31).
3. a kind of low-temperature plasma emission-control equipment according to claim 1, it is characterised in that in the dielectric
It is SiO to manage2Or ceramic material.
4. a kind of low-temperature plasma emission-control equipment according to claim 3, it is characterised in that in the housing (1)
At least provided with two low-temperature plasma reaction modules (3), and the low-temperature plasma reaction module (3) interval setting.
5. a kind of low-temperature plasma emission-control equipment according to claim 1, it is characterised in that the electric discharge fine hair
(341) be chrome-nickel material spicule.
6. a kind of low-temperature plasma emission-control equipment according to claim 1, it is characterised in that the low-temperature plasma
Reaction module (3) is detachable to be arranged in the housing (1).
7. a kind of low-temperature plasma emission-control equipment according to claim 6, it is characterised in that the housing (1)
One side is provided with hermatic door (13), the housing (1)) inside be fixed with it is a plurality of with the low-temperature plasma reaction module (3)
The first fixed plate (31) and the draw-in groove (14) that is engaged of the second fixed plate (32), the low-temperature plasma reaction module (3) leads to
The mode for pulling and pushing is crossed to be connected in the housing (1).
8. a kind of low-temperature plasma emission-control equipment according to claim 1, it is characterised in that the filtering module
(2) set near the air inlet (11), the NACF filtering module (4) is set near the gas outlet (12), institute
State and frequency conversion fan (5) is provided between air inlet (11) and the filtering module (2).
9. a kind of low-temperature plasma emission-control equipment according to claim 8, it is characterised in that the filtering module
(2) including filter outer inframe and the stainless (steel) wire being arranged in the filter outer inframe, fiber filtering is provided with the stainless (steel) wire
Filter layer.
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| CN107197585A (en) * | 2017-06-15 | 2017-09-22 | 青岛安德尔环保节能设备有限公司 | A kind of plasma generator and preparation method thereof, air cleaning unit |
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| CN115261036A (en) * | 2022-07-29 | 2022-11-01 | 浙江省生态环境监测中心 | Organic garbage thermal cracking treatment device and treatment method |
| CN116078127A (en) * | 2023-03-03 | 2023-05-09 | 浙大城市学院 | Dielectric barrier discharge tube with needle electrode cooperated with cylinder multi-channel adsorption catalyst |
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