CN205550035U - Photoinduction catalytic oxidation's exhaust purification technology and device - Google Patents
Photoinduction catalytic oxidation's exhaust purification technology and device Download PDFInfo
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- CN205550035U CN205550035U CN201620140500.XU CN201620140500U CN205550035U CN 205550035 U CN205550035 U CN 205550035U CN 201620140500 U CN201620140500 U CN 201620140500U CN 205550035 U CN205550035 U CN 205550035U
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Abstract
The utility model provides a photoinduction catalytic oxidation's exhaust purification technology and device, be in including outside box and setting the circulating water channel of outside box bottom, circulating water channel is inside to set up the circulating pump, just the circulating pump is through spraying the pipeline and setting up the inside high pressure nozzle intercommunication of outside box, outside box is inside to set up the photodissociation cavity, just the inside defogging device that sets up of photodissociation cavity, outside box top sets up the equipment export, just outside box lateral wall sets up the equipment entry, equipment entry top sets up the guiding device, just the guiding device top sets up the bushing type ultra -violet lamp, the viewing aperture is seted up to outside box lateral wall, circulating water channel connects one side the pH meter, just PH meter one side sets up liquid supplying port, circulating water channel one side sets up the liquid storage pot, just the liquid storage pot top pass through the measuring pump with the circulating water channel intercommunication. The utility model discloses it is good to handle waste gas high efficiency, easy operation and purifying effect.
Description
Technical field
The utility model relates to a kind of waste gas purification technique and device, and the waste gas of a kind of Photocatalysis oxidation is clean
Metallization processes and device, belong to waste gas purification treatment technology application.
Background technology
Recently as expanding economy, the big volume production of the enterprises such as various chemical industry, coating, furniture, toy, electronics, spraying
Raw, result in the discharge of a large amount of industrial organic exhaust gas, cause smell pollution, have a strong impact on atmosphere quality, harmful to human is good for
Health, the improvement to organic exhaust gas, except pyrolysismethod, activated carbon method, condensation method, spray-absorption method, biomembrance process, plasma method
Outward, direct photolysis method, photocatalytic method, chemical oxidization method are simple because of equipment, and the advantages such as cost is low, easy to use, in recent years, light is urged
Change oxidation technology and chemical oxidization method to widely apply in fields such as spraying, chemical industry, foul waste gas.Photocatalysis technology principle is:
The direct effect of ultraviolet light wave: first passing through ultraviolet lamp tube and produce the high energy light wave of specific band, the wavelength producing light wave is main
Being 253.7nm and 185nm, the light wave of specific wavelength is contaminated thing molecule absorption, thus progressively interrupts molecular link, and pollutant is dropped
Solve, O simultaneously2Also can absorb light wave and generate O3, oxidation Decomposition polluter；The catalytic action of catalyst: when the light of certain energy
When being irradiated to semiconductor, valence-band electrons is stimulated and transition becomes light induced electron, leaves the energy state not occupied for electronics,
I.e. photohole, be energized into conduction band electronically form electron hole pair, they are moveable to the surface of semiconductor particle, raw
Become there is the high mars free radical of oxidability, accelerate the degradation of reactant in reaction system.Chemical oxidation law technology is former
Reason is: utilize the strong oxidation of the oxidants such as chemical oxidizing agent such as hydrogen peroxide, sodium hypochlorite, ozone, is imported by oxidant anti-
Answer device, and contact generation oxidation reaction with the pollutant in waste gas.
But in practical engineering application, industrial waste gas purification is imitated by direct photolysis, photocatalysis technology and chemical oxidization method
The most unsatisfactory, for light technology, its reason essentially consists in:
(1) electricity conversion is low, owing to the light source great majority used at present are low pressure mercury lamps, in the ultraviolet light of radiation,
The wavelength having Direct Resolution effect to pollutant is 185nm(energy about 6.9eV), although (energy is about for 253.7nm photon energy
5.7eV) more than most compounds bond energy, but owing to a lot of materials do not absorb 253.7nm light or absorb the most weak, therefore, real
The light worked in border is 185nm light.But for low pressure mercury lamp, 185nm light relative radiant intensity is extremely low, at limited mercury lamp dress
Under machine amount, it is difficult to meet waste gas purification requirement, low to pollutant treatment effeciency, to reach preferable treatment effeciency, theoretical dress
Machine amount is huge；
(2) utilization rate of ultraviolet light is low, also can absorb 185nm light due to the moisture in waste gas, oxygen etc., thus result in
185nm light reaction zone transmission distance and small, the only pollutant on the surface pressing close to lamp obtains Direct Resolution effect.To the greatest extent
Pipe moisture and oxygen are taken off at 185nm light can produce oxygen atom, ozone, hydroxyl radical free radical etc., but these active groups with dirt
When dye thing reacts, being controlled by the factor such as collision probability, reaction rate, this indirect oxidation reacts waste gas purification effect
Contribute limited.
(3) much wideer than 185nm of 253.7nm light relative radiant intensity, for improving the utilization ratio to 253.7nm light,
Light-catalyzed reaction is also applied, and used catalyst mostly is solid state, but the clean-up effect of this reaction unit is controlled by dirt
Dye thing is diffused into the speed of catalyst surface, and, just can have an effect in the only region of illumination, therefore, and photocatalysis technology
It is applied to waste gas purification be also constantly subjected to query.
(4) it addition, dust, steam or other polluters easily accumulate in catalyst surface, catalysqt deactivation is caused to lose
Effect；
(5) in course of reaction, it is easily generated excessive ozone, is difficult to reaction in the short time and removes, make gas outlet ozone concentration have
Time can exceed standard.
For chemical oxidization method, the undesirable reason of clean-up effect is:
(1) being controlled by solution-air or the impact of gas-gas mass transfer Difficult factors, chemical oxidizing agent is low with pollutant contact probability
Reduce chemical reaction rate.For improving mass-transfer efficiency, filling contact filler or raising aqueous chemical oxidant in purifying column
Spraying intensity, thus cause band liquid problem.
(2) for improving the oxidizing potential of oxidant, generally require interpolation acid solution, reduce pH value, thus it is rotten to add equipment
Erosion and the control problem of administration system.
(3) as can be seen here, existing light all exists one about treatment technology or chemical oxidization method to the improvement of organic exhaust gas
Fixed defect, for avoiding weak point of the prior art to need offer a kind of good purification, the waste gas purification of highly effective badly
Processing means.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, it is provided that giving up of a kind of Photocatalysis oxidation
Gas purifies technique and device.
In order to solve above-mentioned technical problem, the utility model provides following technical scheme:
The utility model provides waste gas purification technique and the device of a kind of Photocatalysis oxidation, including external box of microvave and
It is arranged on the circulating water chennel of described external box of microvave bottom, circulating pump is set inside described circulating water chennel, and described circulating pump passes through
Spray pipeline connects with the high pressure nozzle being arranged within described external box of microvave；Photodissociation cavity is set inside described external box of microvave,
And described photodissociation inside cavity arranges demister；Described external box of microvave top arranges equipment outlet, and described external box of microvave side
Wall arranges equipment entrance；Described equipment entrance top arranges guiding device, and described guiding device top arranges bushing type ultraviolet
Light modulation；Described external box of microvave sidewall offers observation panel；Described circulating water chennel side connects pH meter, and described pH meter side arranges benefit
Liquid mouth；Described circulating water chennel side arranges fluid reservoir, and described fluid reservoir top is connected with described circulating water chennel by measuring pump.
As a kind of optimal technical scheme of the present utility model, also include quartz socket tube, ultraviolet lamp tube and casing joint, institute
State and inside bushing type ultraviolet lamp internal suit quartz socket tube, and described quartz socket tube, ultraviolet lamp tube is set；Described quartz socket tube
One end arranges casing joint.
As a kind of optimal technical scheme of the present utility model, it is equally distributed little that described guiding device is provided with several
The metallic plate in hole.
As a kind of optimal technical scheme of the present utility model, described spray pipeline is positioned at the portion within described external box of microvave
Sidewall is divided to be provided with several equally distributed described high pressure nozzles.
As a kind of optimal technical scheme of the present utility model, described photodissociation inside cavity is provided with several and is uniformly distributed
Described bushing type ultraviolet lamp.
The utility model is reached to provide the benefit that:
1, greatly improve the utilization ratio of light wave, take full advantage of 253.7nm light, it is achieved photoinduction Quick Oxidation,
Oxidant direct oxidation, ultraviolet light direct photolysis synergy；
2, in ultraviolet lamp tube is built into quartz socket tube, it is to avoid fluorescent tube directly contacts with pollutant, make lamp luminescence stable,
Service life length, luminous efficiency higher, accelerated the carrying out of oxidation reaction by light wave induced chemical oxidant, the most efficiently divide
Solve organic pollution, and ozone free secondary pollution, have process waste gas rapidly and efficiently, simple to operate and good purification etc. excellent
Point.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for specification, with this practicality
Novel embodiment is used for explaining the utility model together, is not intended that restriction of the present utility model.
In the accompanying drawings:
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is the utility model ultraviolet lamp tube internal structure schematic diagram；
Label in figure: 1, external box of microvave；2, equipment entrance；3, guiding device；4, observation panel；5, bushing type ultraviolet lamp；
6, high pressure nozzle；7, photodissociation cavity；8, demister；9, equipment outlet；10, spray pipeline；11, circulating pump；12, pH meter；
13, measuring pump；14, fluid reservoir；15, fluid infusion mouth；16, circulating water chennel；17, quartz socket tube；18, ultraviolet lamp tube；19, sleeve pipe connects
Head.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, being not used to limit the utility model.
Embodiment: as shown in Figure 1-2, the utility model provides waste gas purification technique and the dress of a kind of Photocatalysis oxidation
Putting, including external box of microvave 1 and the circulating water chennel 16 that is arranged on described external box of microvave 1 bottom, described circulating water chennel 16 is internal to be set
Put circulating pump 11, and described circulating pump 11 is by spray pipeline 10 with the high pressure nozzle 6 being arranged within described external box of microvave 1 even
Logical；Described external box of microvave 1 inside arranges photodissociation cavity 7, and described photodissociation cavity 7 inside arranges demister 8；Described outside case
Body 1 top arranges equipment outlet 9, and described external box of microvave 1 sidewall arranges equipment entrance 2；Described equipment entrance 2 top arranges and leads
Flow device 3, and described guiding device 3 top arranges bushing type ultraviolet lamp 5；Described external box of microvave 1 sidewall offers observation panel 4；
Described circulating water chennel 16 side connects pH meter 12, and described pH meter 12 side arranges fluid infusion mouth 15；Described circulating water chennel 16 side
Fluid reservoir 14 is set, and described fluid reservoir 14 top is connected with described circulating water chennel 16 by measuring pump 13.
Also include quartz socket tube 17, ultraviolet lamp tube 18 and casing joint 19, described bushing type ultraviolet lamp 5 internal suit stone
Inside English sleeve pipe 17, and described quartz socket tube 17, ultraviolet lamp tube 18 is set；Described quartz socket tube 17 one end arranges casing joint 19.
Described guiding device 3 is provided with the metallic plate of several equally distributed apertures.
Partial sidewall within the described externally-located casing of spray pipeline 10 1 is provided with several equally distributed high pressure sprays
Mouth 6.The spraying making inside is more uniform.
Described photodissociation cavity 7 is internally provided with several equally distributed bushing type ultraviolet lamps 5, makes the light of inside more
Add uniformly.
In use, external box of microvave 1 is provided with equipment entrance 2, equipment outlet 9 and observation panel 4 to the utility model, waste gas from
After equipment entrance 2 enters, make waste gas uniformly enter photodissociation cavity 7 after guiding device 3 and react, ultraviolet photolysis device bag
Including photodissociation cavity 7 and the bushing type ultraviolet lamp 5 being installed in photodissociation cavity 7, bushing type ultraviolet lamp 5 region is light
Solving cavity 7, the waste gas after guiding device 3 even distributing wind enters this region, enters expert's waste gas decomposition reaction in this region, chemistry
Oxidant spray equipment includes high pressure nozzle 6, spray pipeline 10, circulating pump 11, fluid infusion mouth 15 and circulating water chennel 16, circulating water chennel
The chemical oxidizing agent that in 16, storage configures in proportion, is promoted at high pressure nozzle 6, at light with circulating pump 11 by spray pipeline 10
Solve cavity 7 and spray vaporific chemical oxidizing agent through high pressure nozzle 6, act synergistically with chemical oxidizing agent at this region ultraviolet light wave,
It is fully contacted reaction, when the liquid level in circulating water chennel 16 is less than a threshold value, and fluid infusion mouth 15 is i.e. opened with the pollutant in waste gas
Automatic liquid supply, the outlet of photodissociation cavity 7 connects with demister 8.
Automatic medicament feeding system includes measuring pump 13 and fluid reservoir 14, and chemical oxidizing agent is stored in fluid reservoir 14, passes through pH
The pH of meter 12 mensuration circulating water chennel 16, according to the value recorded, system automatically turns on or stops measuring pump 13, adds to circulating water chennel 16
Adding chemical oxidizing agent, demister 8 connects with the outlet of photodissociation cavity 7, waste gas after photodissociation cavity 7 is fully contacted reaction, by
Comparatively fast bring partially liq in wind speed, therefore after removing, by demister 8, the drop carried, waste gas is through equipment outlet 9 discharge, useless
Gas is after above-mentioned wet method photocatalysis oxidation reaction processes, and non-pollution discharge, first, waste gas enters light by equipment entrance 2
Solve purifying area；Photodissociation purifying area is provided with the quartz socket tube 17 of multiple rows of high ultraviolet, and pipe is built into ultraviolet lamp, and ultraviolet lamp is launched
The UV light permeability quartz socket tube 17 gone out, is internally formed High-energy photon lasing region at photodissociation purifying area；Simultaneously by efficiently spray
Chemical oxidizing agent is atomized by mouth, utilizes oxidant to fully absorb 253.7nm light, makes oxidant be converted into hydroxyl radical free radical etc.
Strong oxidizing property group, it is achieved photoinduction Quick Oxidation；Organic contamination molecule can also directly absorb 185nm photon or direct and oxygen
Agent is reacted, it is achieved photoinduction Quick Oxidation, oxidant direct oxidation, ultraviolet light direct photolysis synergy.At high energy ultraviolet
Under the synergy of light wave and strong oxidative free radical, organic pollution absorbs rapidly, crack, to be catalyzed oxidation etc. a series of instead
Should, pollutant is gradually degraded and is transformed into the pollution-free compound of low molecule, such as CO2, H2O etc., then pass through in equipment except mist layer
Discharge after mist elimination.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this
Utility model, although being described in detail the utility model with reference to previous embodiment, for those skilled in the art
For, the technical scheme described in foregoing embodiments still can be modified by it, or to wherein portion of techniques feature
Carry out equivalent.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (5)
1. Photocatalysis oxidation waste gas purification technique and a device, including external box of microvave (1) and be arranged on described outside
The circulating water chennel (16) of portion's casing (1) bottom, it is characterised in that: described circulating water chennel (16) is internal arranges circulating pump (11), and
Described circulating pump (11) is connected by the high pressure nozzle (6) that spray pipeline (10) is internal with being arranged on described external box of microvave (1)；Institute
State the internal photodissociation cavity (7) that arranges of external box of microvave (1), and described photodissociation cavity (7) inside arranges demister (8)；Outside described
Portion's casing (1) top arranges equipment outlet (9), and described external box of microvave (1) sidewall arranges equipment entrance (2)；Described equipment enters
Mouth (2) top arranges guiding device (3), and described guiding device (3) top arranges bushing type ultraviolet lamp (5)；Described outside
Casing (1) sidewall offers observation panel (4)；Described circulating water chennel (16) side connects pH meter (12), and described pH meter (12) side
Fluid infusion mouth (15) is set；Described circulating water chennel (16) side arranges fluid reservoir (14), and described fluid reservoir (14) top is by meter
Amount pump (13) connects with described circulating water chennel (16).
The waste gas purification technique of a kind of Photocatalysis the most according to claim 1 oxidation and device, it is characterised in that also
Including quartz socket tube (17), ultraviolet lamp tube (18) and casing joint (19), described bushing type ultraviolet lamp (5) internal suit quartz
Inside sleeve pipe (17), and described quartz socket tube (17), ultraviolet lamp tube (18) is set；Described quartz socket tube (17) one end arranges sleeve pipe
Joint (19).
The waste gas purification technique of a kind of Photocatalysis the most according to claim 1 oxidation and device, it is characterised in that institute
State guiding device (3) and be provided with the metallic plate of several equally distributed apertures.
The waste gas purification technique of a kind of Photocatalysis the most according to claim 1 oxidation and device, it is characterised in that institute
State the partial sidewall that spray pipeline (10) is positioned at described external box of microvave (1) internal and be provided with several equally distributed described high pressure
Nozzle (6).
The waste gas purification technique of a kind of Photocatalysis the most according to claim 1 oxidation and device, it is characterised in that institute
State photodissociation cavity (7) and be internally provided with several equally distributed described bushing type ultraviolet lamps (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140500.XU CN205550035U (en) | 2016-02-24 | 2016-02-24 | Photoinduction catalytic oxidation's exhaust purification technology and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140500.XU CN205550035U (en) | 2016-02-24 | 2016-02-24 | Photoinduction catalytic oxidation's exhaust purification technology and device |
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| Publication Number | Publication Date |
|---|---|
| CN205550035U true CN205550035U (en) | 2016-09-07 |
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ID=56818569
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620140500.XU Active CN205550035U (en) | 2016-02-24 | 2016-02-24 | Photoinduction catalytic oxidation's exhaust purification technology and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536525A (en) * | 2016-02-24 | 2016-05-04 | 常州大恒环保科技有限公司 | Photoinduction catalytic oxidation exhaust purification process and device |
| CN106474921A (en) * | 2016-12-03 | 2017-03-08 | 福建众辉环保设备有限公司 | A kind of waste gas cleaning system |
-
2016
- 2016-02-24 CN CN201620140500.XU patent/CN205550035U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536525A (en) * | 2016-02-24 | 2016-05-04 | 常州大恒环保科技有限公司 | Photoinduction catalytic oxidation exhaust purification process and device |
| CN106474921A (en) * | 2016-12-03 | 2017-03-08 | 福建众辉环保设备有限公司 | A kind of waste gas cleaning system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |