CN209108944U - A kind of VOC exhaust gas liquid phase photocatalysis treatment system - Google Patents
A kind of VOC exhaust gas liquid phase photocatalysis treatment system Download PDFInfo
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- CN209108944U CN209108944U CN201821622316.4U CN201821622316U CN209108944U CN 209108944 U CN209108944 U CN 209108944U CN 201821622316 U CN201821622316 U CN 201821622316U CN 209108944 U CN209108944 U CN 209108944U
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- exhaust gas
- spray equipment
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- oxidizing tower
- ultraviolet light
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Abstract
The utility model discloses a kind of VOC exhaust gas liquid phase photocatalysis treatment systems, including oxidizing tower, chemicals dosing plant, the oxidizing tower includes air inlet, exhaust outlet, the spray equipment of multistage, multistage UV ultraviolet light device and filled layer, the lower part of oxidizing tower is arranged in the air inlet, and the top of oxidizing tower is arranged in the exhaust outlet；The spray equipment includes nozzle, and the spray equipment and UV ultraviolet light device longitudinal gap are staggered installation of, and the filled layer is arranged at least one level and is mounted below spray equipment, is provided with several Pall rings in the filled layer；The chemicals dosing plant includes that circulation dosing pump and medicine-chest, the circulation dosing pump are connect with spray equipment；It is degraded VOC exhaust gas to non-toxic and tasteless gas discharge using the catalysis of hydroxyl radical free radical medicament and UV ultraviolet optical oxidation reaction, the utility model economical rationality, high treating effect, environmental benefit are than more significant, and easy maintenance, it is with a wide range of applications.
Description
Technical field
The utility model relates to technical field of waste gas treatment, in particular to a kind of VOC exhaust gas liquid phase photocatalysis treatment
System.
Background technique
Exhaust gas is discharged in the burning of industrial production, fossil-fuel-fired, rubbish and industrial waste and vehicle traveling process
Gas.Can be divided into according to its generation process: industrial organic exhaust gas, boiler smoke exhaust gas, industrial soda acid exhaust gas, industrial production are different
Taste, industry harmful fine particle and vehicle exhaust etc..VOC is volatile organic compounds (volatile organic
Compound english abbreviation), the VOC exhaust gas generated in industrial processes become increasingly complex, these exhaust gas direct emission meetings
Ambient enviroment is affected greatly.Enterprise is in face of gravely environmental protection policy, the environment depended on for existence in face of us, in order to more preferable
Ground improves cooperation efforts at environmental protection, improves employee working environment, reduces pollutant emission, reduces pollutant to the shadow of surrounding enviroment
It rings, needs further to carry out gas sampling and improvement.
There are many VOC administering methods, including absorption process, absorption method, condensation method, catforming, combustion method, life at present
The object method of purification, membrane separation process, but in place of each method all Shortcomings, as safety is poor, low efficiency, selectivity is high or generates
Secondary pollution problems.Therefore, a set of safe and efficient, the without secondary pollution VOC treatment facility of our urgent needs.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of safe and efficient VOC exhaust gas liquid phase photocatalysis
Processing system and VOC waste gas processing method.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of VOC exhaust gas liquid phase photocatalysis treatment system, including oxidizing tower, chemicals dosing plant, the oxidizing tower include air inlet
Oxidizing tower is arranged in mouth, exhaust outlet, the spray equipment of multistage, multistage UV ultraviolet light device and filled layer, the air inlet
The top of oxidizing tower is arranged in lower part, the exhaust outlet；The spray equipment includes nozzle, the spray equipment and UV ultraviolet light
Device longitudinal gap is staggered installation of, and the filled layer is arranged at least one level and is mounted below spray equipment, in the filled layer
It is provided with several Pall rings；The UV ultraviolet light device includes several ultraviolet lamp tubes；The chemicals dosing plant includes circulation dosing
Pump and medicine-chest, the circulation dosing pump are connect with spray equipment.
As an improvement of the above technical solution, scrubbing tower, the scrubbing tower are connected with before the air inlet of the oxidizing tower
Including multi-stage spray device, filled layer and chemicals dosing plant, the spray equipment is connected with circulation dosing pump, in the scrubbing tower not
Equipped with UV ultraviolet light device, it is equipped with centrifugal blower between the oxidizing tower and scrubbing tower, dehydration dress is equipped at the top of the scrubbing tower
It sets.
As a further improvement of the above technical scheme, the top of the oxidizing tower is equipped with dehydration device.
Further, the spray equipment in the oxidizing tower and the installation of UV ultraviolet light device interleaved, wherein in most lower
Layer is UV ultraviolet light device.
Further, the exhaust ports of the oxidizing tower are equipped with air-introduced machine.
Further, storage medicament includes oxidant, catalyst and acid mineral object in the medicine-chest of the chemicals dosing plant.
Further, the chemicals dosing plant further includes case lid, dose controller and strainer, and the dose controller is mounted on medicine
It is connect in case and with circulation dosing pump.
The beneficial effects of the utility model are: a kind of VOC exhaust gas liquid phase photocatalysis treatment system, including oxidizing tower, dosing
Device, the oxidizing tower include air inlet, exhaust outlet, the spray equipment of multistage, multistage UV ultraviolet light device and filled layer,
The lower part of oxidizing tower is arranged in the air inlet, and the top of oxidizing tower is arranged in the exhaust outlet；The spray equipment includes spray
Mouth, the spray equipment and UV ultraviolet light device longitudinal gap are staggered installation of, and the filled layer is arranged at least one level and is mounted on
Below spray equipment, several Pall rings are provided in the filled layer；The chemicals dosing plant includes recycling dosing pump and medicine-chest,
The circulation dosing pump is connect with spray equipment；Utilize the catalysis of hydroxyl radical free radical medicament and UV ultraviolet optical oxidation reaction pair
VOC exhaust gas is degraded to non-toxic and tasteless gas discharge, the use of the new type economical rationality, high treating effect, environmental benefit ratio
It is more significant, and easy maintenance, it is with a wide range of applications.
Detailed description of the invention
It is described further below in conjunction with attached drawing and example.
Fig. 1 is 1 structural schematic diagram of oxidizing tower of the utility model；
Fig. 2 is the 41 mounting means schematic top plan view of UV ultraviolet lamp tube of the utility model；
Fig. 3 is 6 attachment structure schematic diagram of oxidizing tower 1 and scrubbing tower of the utility model.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Referring to Fig.1, a kind of VOC exhaust gas liquid phase photocatalysis treatment system, including oxidizing tower 1, chemicals dosing plant 2, the oxidation
Tower 1 includes air inlet 11, exhaust outlet 12, multistage spray equipment 3, multistage UV ultraviolet light device 4 and filled layer 5, it is described into
The lower part of oxidizing tower 1 is arranged in port 11, and the top of oxidizing tower 1 is arranged in the exhaust outlet 12；The spray equipment 3 includes spray
Mouth 31, the spray equipment 3 and 4 longitudinal gap of UV ultraviolet light device are staggered installation of, and at least one level and peace is arranged in the filled layer 5
Mounted in 3 lower section of spray equipment, several Pall rings 51 are provided in the filled layer 5；The UV ultraviolet light device 4 includes several
Ultraviolet lamp tube 41；The chemicals dosing plant 2 includes that circulation dosing pump and medicine-chest, the circulation dosing pump are connect with spray equipment 3.
VOC is the english abbreviation of volatile organic compounds (volatile organic compound), in VOC exhaust gas
It is most common to have benzene,toluene,xylene, styrene etc., it is preferred that the medicament being added in medicine-chest is mainly oxidant, catalysis
Agent and acid mineral object, wherein oxidant is hydrogen peroxide, and the catalyst is ferrous sulfate, and acid mineral object is hydrochloric acid or sulphur
Acid, VOC exhaust gas enter from the air inlet 11 of oxidizing tower 1, rise from the tower bottom of oxidizing tower 1, and at least the filled layer 5 of level-one is installed
In the bottom of 4 installation site of spray equipment 3 and UV ultraviolet light device, i.e. VOC exhaust gas rises to spray equipment 3 and UV ultraviolet light
Must be by level-one filled layer 5 before the installation site of device 4, VOC exhaust gas is formed in filled layer 5 by the dispersion of Pall ring 51 uniform
Air-flow, while filled layer 5 slows down the air-flow rate of climb of VOC exhaust gas, the medicament that spray equipment 3 sprays sprays down, medicament
Convection current is formed with VOC exhaust gas, comes into full contact with degradation with VOC exhaust gas；Spray equipment 3 and 4 collective effect of UV ultraviolet light device are by VOC
Exhaust gas carries out degradation purification；In the present embodiment, set in oxidizing tower 1 to level Four UV ultraviolet light device 4 and three-level spray equipment 3, UV
Ultraviolet light device 4 and spray equipment 3 are staggeredly spaced installation, i.e. multilayer segmented degradation in realization tower, the purple of UV ultraviolet light device 4
Outer light not only has oxidation, while can also accelerate the substance decomposition in VOC exhaust gas, and the VOC exhaust gas the lower toward ascending concentration, most
It is drained into external environment after being degraded to effluent standard concentration eventually from exhaust outlet 12；The medicament sprayed in tower can be back to after falling on tower bottom
It is recycled in chemicals dosing plant 2.
Referring to Figures 1 and 2, the cross section of oxidizing tower 1 is set as round, it is preferred that every grade of UV ultraviolet light device 4, which is divided, is
Two layers of ultraviolet lamp tube 41, two layers of ultraviolet lamp tube 41 is parallel to each other and upper and lower arranged in dislocation is made simultaneously with cooperating the shape of tower
Every grade of UV ultraviolet light device 4 irradiates all standing to the VOC exhaust gas in the region, guarantees degradation effect and efficiency.
Referring to Fig. 3, scrubbing tower 6 is connected with before the air inlet 11 of the oxidizing tower 1, the scrubbing tower 6 includes multistage spray
Shower device 3, filled layer 5 and chemicals dosing plant 2, the spray equipment 3 are connected with circulation dosing pump, are not provided in the scrubbing tower 6
UV ultraviolet light device 4 is equipped with centrifugal blower 7, dehydration dress is equipped at the top of the scrubbing tower 6 between the oxidizing tower 1 and scrubbing tower 6
8 are set, the dehydration device 8 is preferably demister；VOC exhaust gas first passes through scrubbing tower 6 before entering oxidizing tower 1, in scrubbing tower 6
VOC exhaust gas, which is first done only once after degradation, just to be entered in oxidizing tower 1, is reduced VOC exhaust gas concentration in scrubbing tower 6, and will
The large particulate matters such as the grit in VOC exhaust gas absorb；Dehydration device 8 is by the drop absorption in the VOC exhaust gas after primary degradation, and one
Aspect stablizes the concentration of VOC exhaust gas, and another aspect drop is avoided droplets from acidity to pipeline between scrubbing tower 6 and oxidizing tower 1
With the corrosion of centrifugal blower 7, the service life of equipment is improved.
The top of the oxidizing tower 1 is equipped with dehydration device 8, will just be discharged into environment, keeps away after the drop absorption in gas
Exempt from the liquid having in gas and secondary pollution is carried out to environment.
Spray equipment 3 and the installation of 4 interleaved of UV ultraviolet light device in the oxidizing tower 1, wherein in undermost
UV ultraviolet light device 4, due to the sprinkling medicament downwards of spray equipment 3,4 lower section of undermost UV ultraviolet light device also have medicament with
VOC exhaust gas is reacted, therefore undermost UV ultraviolet light device 4 also can collective effect with the medicament fallen.
Preferably, it is equipped with air-introduced machine 9 at the exhaust outlet 12 of the oxidizing tower 1, promotes the flow direction of gas.
The chemicals dosing plant 2 further includes case lid, dose controller and strainer, the dose controller be mounted in medicine-chest and
It connect with circulation dosing pump, since the medicament in tower is recycled, for a long time using that can have many impurity in rear medicament, passes through
Case lid observes medicine-chest inner case, and strainer is then used for impurity screening, and the dose controller includes floating ball lever meter or pressure gauge,
Pass through the work of the medicament storage control loop dosing pump in detection medicine-chest.
In the present embodiment, using above-mentioned VOC exhaust gas liquid phase photocatalysis treatment system to the processing method of VOC exhaust gas, until
Less the following steps are included:
A: being added medicament in chemicals dosing plant 2, and medicament includes oxidant, catalyst and acid mineral object, and oxidant is double
Oxygen water, catalyst are ferrous sulfate, and acid mineral object is sulfuric acid or hydrochloric acid, and the PH of medicament is adjusted to 3~5, life in medicament
At hydroxyl radical free radical；
B:VOC exhaust gas enters from the air inlet 11 of oxidizing tower 1, and VOC exhaust gas flows from the bottom to top in oxidizing tower 1, and VOC
Exhaust gas when filled layer 5 by being evenly dispersed and being slowed the air-flow rate of climb；
C: spray equipment 3, circulation dosing pump and UV ultraviolet light device 4 are opened while carrying out step B, medicament passes through
Nozzle 31 sprays in oxidizing tower 1 to be mixed with VOC exhaust gas, oxygen of the VOC exhaust gas in hydroxyl radical free radical and UV ultraviolet light device 4
It is oxidized to carbon dioxide and water under change effect, is discharged by exhaust outlet 12.
Preferably, scrubbing tower 6 is connected with before the air inlet 11 of oxidizing tower 1, the scrubbing tower 6 includes multi-stage spray device
3, filled layer 5 and chemicals dosing plant 2, the spray equipment 3 are connected with circulation dosing pump, and it is ultraviolet to be not provided with UV in the scrubbing tower 6
Electro-optical device 4 is equipped with centrifugal blower 7 between the oxidizing tower 1 and scrubbing tower 6；VOC exhaust gas first carries out an oxygen in scrubbing tower 6
Change, then carries out secondary oxidation in the action flow to oxidizing tower 1 for passing through centrifugal blower 7.
It is equipped with dehydration device 8 at the top of oxidizing tower 1 and scrubbing tower 6, before VOC exhaust gas enters oxidizing tower 1 from scrubbing tower 6
Primary dewatering processing is carried out, gas carries out second dehydration processing before being finally discharged from the exhaust outlet 12 of oxidizing tower 1.
The VOC waste gas processing method of the catalysis of hydroxyl radical free radical medicament and the oxidation of UV ultraviolet optical completes efficient oxidation, fits
Improvement for difficult oxidation and toxic organic compound.This method generates strong oxygen by using the chemical reaction of oxidant and catalyst
The hydroxyl radical free radical for the property changed, comparative electrode current potential 2.8Ev have extremely strong oxidisability, the fluorine being only second in nature.It utilizes
The hydroxyl radical free radical oxidative degradation VOC exhaust gas, has the characteristics that quick, without secondary pollution.The reaction process includes that free radical is anti-
Should and photooxidation reaction, in radical reaction, oxidant generates hydroxyl radical free radical under the action of catalyst, be subsequently introduced UV purple
Outer light action not only generates more hydroxyl radical free radicals and participates in oxicracking VOC, UV light can also accelerate in light-oxidation reaction
The cracking of VOC, inorganic sulfur phosphorus compound etc..VOC is quickly oxidized to intermediate production under the strong oxidation of hydroxyl radical free radical
Then object is quickly generated carbon dioxide and water.During this addition of catalyst substantially reduce the activation energy of hydroxyl radical free radical,
The introducing of exhaust gas characteristic absorption UV ultraviolet light, makes exhaust gas harmful constituent be converted to excitation state from ground state rapidly, or even directly split
The chemical bond of emission molecule, substantially increases the oxidation efficiency of oxidising agent, and utilization rate, reaction rate and treatment effect are obvious
Better than common oxidizing process.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (7)
1. a kind of VOC exhaust gas liquid phase photocatalysis treatment system, it is characterised in that: described including oxidizing tower (1), chemicals dosing plant (2)
Oxidizing tower (1) include air inlet (11), exhaust outlet (12), multistage spray equipment (3), multistage UV ultraviolet light device (4) and
Filled layer (5), in the lower part of oxidizing tower (1), the exhaust outlet (12) is arranged in oxidizing tower (1) for air inlet (11) setting
Top；
The spray equipment (3) includes nozzle (31), and the spray equipment (3) and UV ultraviolet light device (4) longitudinal gap are interlocked
Installation, the filled layer (5) are arranged at least one level and are mounted below spray equipment (3), and the filled layer (5) is if interior be provided with
Dry Pall ring (51)；The UV ultraviolet light device (4) includes several ultraviolet lamp tubes (41)；The chemicals dosing plant (2) includes following
Ring dosing pump and medicine-chest, the circulation dosing pump are connect with spray equipment (3).
2. a kind of VOC exhaust gas liquid phase photocatalysis treatment system according to claim 1, it is characterised in that: in the oxidation
It is connected with scrubbing tower (6) before the air inlet (11) of tower (1), the scrubbing tower (6) includes multi-stage spray device (3), filled layer (5)
With chemicals dosing plant (2), the spray equipment (3) connects with circulation dosing pump, and UV ultraviolet light dress is not provided in the scrubbing tower (6)
It sets (4), is equipped with centrifugal blower (7) between the oxidizing tower (1) and scrubbing tower (6), dehydration dress is equipped at the top of the scrubbing tower (6)
Set (8).
3. a kind of VOC exhaust gas liquid phase photocatalysis treatment system according to claim 1, it is characterised in that: the oxidizing tower
(1) top is equipped with dehydration device (8).
4. a kind of VOC exhaust gas liquid phase photocatalysis treatment system according to claim 1, it is characterised in that: the oxidizing tower
(1) spray equipment (3) and the installation of UV ultraviolet light device (4) interleaved in, wherein being in undermost is UV ultraviolet light dress
Set (4).
5. a kind of VOC exhaust gas liquid phase photocatalysis treatment system according to claim 1, it is characterised in that: the oxidizing tower
(1) air-introduced machine (9) are equipped at exhaust outlet (12).
6. a kind of VOC exhaust gas liquid phase photocatalysis treatment system according to claim 1 or 2, it is characterised in that: the dosing
Storage medicament includes oxidant, catalyst and acid mineral object in the medicine-chest of device (2).
7. a kind of VOC exhaust gas liquid phase photocatalysis treatment system according to claim 1, it is characterised in that: the dosing dress
Setting (2) further includes case lid, dose controller and strainer, and the dose controller is mounted in medicine-chest and connects with circulation dosing pump
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622316.4U CN209108944U (en) | 2018-09-30 | 2018-09-30 | A kind of VOC exhaust gas liquid phase photocatalysis treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622316.4U CN209108944U (en) | 2018-09-30 | 2018-09-30 | A kind of VOC exhaust gas liquid phase photocatalysis treatment system |
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| CN209108944U true CN209108944U (en) | 2019-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046018A (en) * | 2018-09-30 | 2018-12-21 | 广东键盟环保科技有限公司 | A kind of VOC exhaust gas liquid phase photocatalysis treatment system and VOC waste gas processing method |
-
2018
- 2018-09-30 CN CN201821622316.4U patent/CN209108944U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046018A (en) * | 2018-09-30 | 2018-12-21 | 广东键盟环保科技有限公司 | A kind of VOC exhaust gas liquid phase photocatalysis treatment system and VOC waste gas processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Lili Inventor after: Ma Jianzhu Inventor after: Ma Ziqi Inventor after: Xiong Jinli Inventor after: Luo Liujun Inventor after: Yu Ronghua Inventor after: Xu Jun Inventor before: Ma Jianzhu Inventor before: Ma Ziqi Inventor before: Xiong Jinli Inventor before: Wang Lili Inventor before: Luo Liujun Inventor before: Yu Ronghua Inventor before: Xu Jun |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191106 Address after: 528200 Room 1411 2, Tian'an Nanhai Digital New Town, No. 1, Jianping Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province Patentee after: Guangdong Zhongtian Environmental Protection Technology Co., Ltd. Address before: 528200 Local Name of Xiwanxi Industrial Zone of Yanbu River, Dali Town, Nanhai District, Foshan City, Guangdong Province, No. 6 Patentee before: Guangdong Key Alliance Environmental Protection Technology Co., Ltd. |