CN207970680U - The device of VOC in a kind of removal industrial tail gas - Google Patents
The device of VOC in a kind of removal industrial tail gas Download PDFInfo
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- CN207970680U CN207970680U CN201820170792.0U CN201820170792U CN207970680U CN 207970680 U CN207970680 U CN 207970680U CN 201820170792 U CN201820170792 U CN 201820170792U CN 207970680 U CN207970680 U CN 207970680U
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- absorption towers
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- adsorption tanks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model is related to the devices of VOC in removal industrial tail gas a kind of, including:The absorption towers VOCs, exhaust conveying air hose, oxidation pipeline section and adsorption tanks.The absorption towers VOCs have air inlet and gas outlet, air inlet is set to the absorption towers VOCs lower end, gas outlet is set to the absorption towers VOCs upper end, and the absorption towers VOCs are set as purified solution slot, first order sprayer, separate filtering layer, second level sprayer, condenser, stainless steel demister successively from bottom to top;The gas outlet on the absorption towers exhaust conveying air hose connection VOCs, the exhaust conveying air hose other end are detachably connected oxidation pipeline section, the gas distribution pipe of more connection ozone generators are equipped in oxidation pipeline section, and the gas distribution pipe is spaced stacking arrangement in the height direction;The air intake connection oxidation pipeline section of adsorption tanks, exhaust outlet connect exhaust chimney, the baffle plate that surface is active carbon layer are equipped in adsorption tanks, the inside of adsorption tanks is separated into S-shaped gas flow by baffle plate.
Description
Technical field
The utility model is related to a kind of exhaust gas processing device, the device of VOC in especially a kind of removal industrial tail gas.
Background technology
VOC is the english abbreviation of volatile organic compounds (volatile organic compounds), that is, be will produce
That a kind of volatile organic matter of harm.VOC is essentially from petrochemical industry, external coating, electronics, timber industry, medicine/pesticide
And dyestuff, metallurgy and foundary industry etc..VOC has a following feature, and first, be easy to and NOXPhotochemical reaction occurs and generates O3, lure
Send out chemical fumes;The second, stink is generated, most of VOC is odorant;Third, toxicity, cause a hidden trouble to health of human body.VOC
The type and typical pollutant of pollutant have hydro carbons (benzene,toluene,xylene, n-hexane, naphtha, hexamethylene, methyl cyclohexane
Alkane, dioxane, diluent, gasoline), halogenated hydrocarbons (trichloro ethylene, perchloroethylene, trichloro ethylene, dichloromethane, trichlorine
Methane, carbon tetrachloride, freon class), aldehydes (formaldehyde, acetaldehyde, methacrylaldehyde, furfural), ketone (acetone, MEK, cyclohexanone,
MIKB), esters (ethyl acetate, butyl acetate, ethyl oleate), alcohols (methanol, ethyl alcohol, isopropanol, n-butanol, isobutanol),
Polymer monomer (vinyl chloride, acrylic acid, styrene, vinyl acetate), amides (dimethylformamide, acetic acid dimethylamide), nitrile,
Cyanogen class, hydrogen cyanide and acrylonitrile etc..Currently, VOCSAdministering method mainly have physical method (absorption, absorb, condensation, at film
Reason), chemical method (burning, biodegradable, photocatalytic degradation) and the united method of the two.Relative maturity on treatment technology, but
How to utilize these technologies to high-efficiency low energy consumption, then it is crucial to be that the design aspect of processing equipment or system makes innovation.
Utility model content
In order to solve the above problem of the prior art, the utility model offer one kind is simple in structure, low energy consumption and can be efficient
Remove the device of VOC in industrial tail gas.
The utility model use main technical schemes include:
The device of VOC in a kind of removal industrial tail gas comprising:
There is air inlet and gas outlet, the air inlet to be inhaled set on the VOCs for the absorption towers VOCs, the absorption towers VOCs
Tower lower end is received, the gas outlet is set to the absorption towers VOCs upper end, and the absorption towers VOCs are set as purifying from bottom to top successively
Solution tank, first order sprayer, separate filtering layer, second level sprayer, condenser, stainless steel demister;
Exhaust conveying air hose, exhaust conveying air hose one end connect the gas outlet on the absorption towers VOCs, the exhaust
Convey the detachably connected oxidation pipeline section of the air hose other end;The oxidation inner tube segment is equipped with more and connects with ozone generator
The gas distribution pipe connect, the gas distribution pipe are equipped with stomata and in the height direction interval stacking arrangement;
There is air intake and exhaust outlet, the air intake to connect the oxidation pipeline section, the row for adsorption tanks, the adsorption tanks
Gas port connects exhaust chimney, is covered with the baffle plate of active carbon layer in the adsorption tanks equipped with surface, and the baffle plate will be described
The inside of adsorption tanks is separated into S-shaped gas flow.
Preferably, water or alkaline solution are loaded in the purified solution slot, the purified solution slot connects a cycle
Pump, the circulating pump connect reservoir, and the reservoir connects the first order sprayer and second level sprayer.
Preferably, filter membrane is equipped between the purified solution slot and the circulating pump.
Preferably, the separate filtering layer is PE filter plates.PE filter plates are with UHMW-PE ultra-high molecular weight polyethylene powder
The filter medium being sintered for raw material by setting technique, has the property that:1. nontoxic odorless, foreign dissolution;2. excellent
Corrosion resistance is resistant to all kinds of non-acid with strong oxidizing property, alkaline-resisting, resistance to aldehyde, resistance to aliphatic hydrocarbon, radioresistens radiation etc., and chemical property is very excellent
It is good, the performance of organic solvent-resistant;3. temperature tolerance:The resistance to saturated vapor temperature of highest 30min is up to 130 DEG C;4. having preferable toughness
And intensity, shock resistance, installation and transportation are hardly damaged;5. strainability:For highest filtering accuracy up to 0.3 micron, filter efficiency is high;
6. physical property:Medium light specific gravity, Theoretical specific gravity is in 0.5-0.7g/ml or so;7. regenerability:PE medium pores have micro-
The elasticity for seeing expansion carries out efficient reverse cleaning regeneration using hydraulic pressure, air pressure or water-air pressure collective effect;8. processability
Energy:Vehicle, milling can be used, plane scalds, thermofussion welding, and the modes such as bonding carry out secondary operation.
Preferably, the condenser is made of Multi-layer supporting plate and several reducing pipes being embedded in the support plate,
Downward, the smaller one end of diameter is arranged upward for one end that each reducing pipe is relatively large in diameter, when air-flow passes through the reducing pipe,
Air-flow is condensed by compression.
Preferably, the stainless steel demister include stainless steel plate and be opened in the stainless steel surface slit shape it is thin
Slot hole, the slit-type elongated hole are width 0.12mm~0.3mm* length 6mm~8mm, and density of setting is every square centimeter sets
Set 8-12.The slit-type elongated hole is formed by laser cutting technique.
Preferably, the purified solution slot is popped one's head in equipped with pH, and the purified solution slot connects an export pump, the export
Pump controls start and stop by a control circuit, and the control circuit is according to pH probe testing results, when pH is less than setting value
Start the solution that export pump exports the purified solution slot.
Preferably, there is air inlet to connect a tail gas sucking wind turbine and tail gas for the absorption towers VOCs, the absorption towers VOCs
Ingress pipe.
The advantageous effects of the utility model:The purified solution slot that the utility model passes through the absorption towers the VOCs lower layer
Interior water or dilute alkaline solution absorb the soluble gas in industrial waste gas, and the oxide and some esters of especially N and S gather
Water and diluted alkaline are dispersed into tiny by the macromoleculars volatility toxic gas such as monomer adduct, first order sprayer and second level sprayer
Droplet can quickly dissolve most of soluble gas in VOCs, some undissolved escaping gas are with dissolving but with gas
Flow droplet etc. for rising and a part retained by separate filtering layer, subsequent condensed device, stainless steel demister almost by it is whole with
The droplet that air-flow rises is trapped in the absorption towers VOCs, ensures the aridity of outlet gas.Top in the absorption towers VOCs
Gas outlet come out mainly small molecule hydro carbons and halogenated hydrocarbon, then through exhaust conveying air hose reach oxidation pipeline section, in oxygen
Change by multistage ozone uniform alumina in pipeline section, and absorbed through adsorption tanks, finally drain into air, reduces VOC in industrial tail gas.
The oxidation pipeline section is an absolute construction, convenient for connection as needed or dismounting or repair etc., has surface in the adsorption tanks
For the baffle plate of activated carbon covering, gas concentration is accumulated, increases air-flow walking path and suction-operated surface area, improves absorption effect
Rate and exhaust quality.
Description of the drawings
Fig. 1 is the structural schematic diagram that the utility model removes a preferred embodiment of the device of VOC in industrial tail gas.
【Reference sign】
11 tail gas ingress pipes, 12 tail gas sucking wind turbine, the absorption towers 20VOCs, 201 air inlets, 202 gas outlets, 21 purifications are molten
Liquid bath, 221 first order sprayers, 23 separate filtering layers, 222 second level sprayers, 24, condenser, 241 support plates, 242 decrements
Pipe, 25 stainless steel demisters, 30 exhaust conveying air hoses, 31 first flanges, 40 oxidation pipeline sections, 41 second flanges, 42 third flanges,
43 gas distribution pipes, 50 adsorption tanks, 51 the 4th flanges, 52 air intakes, 53 exhaust outlets, 54 baffle plates, 60 exhaust chimneys, 70 ozone occur
Device, 81 circulating pumps, 82 reservoirs, 83 filter membranes.
Specific implementation mode
It is below in conjunction with the accompanying drawings, right by specific implementation mode in order to understand in order to preferably explain the utility model
The utility model is described in detail.
It is as shown in Figure 1 the preferred embodiment structural representation of the device of VOC in a kind of removal industrial tail gas of the utility model
Figure is from left to right equipped with tail gas ingress pipe 11, tail gas sucking wind turbine 12, the absorption towers VOCs 20, exhaust conveying air hose 30, oxygen successively
Change pipeline section 40, adsorption tanks 50, exhaust chimney 60, ozone generator 70 etc..
Wherein, the tail gas that VOC is contained in factory as shown by arrows passes through after preliminary filtering and heat exchange process, into tail gas
Ingress pipe 11 is constantly admitted to the absorption towers VOCs 20 under the action of tail gas sucks wind turbine 12.The absorption towers VOCs 20 are equipped with air inlet
Mouth 201 and gas outlet 202, air inlet 201 are set to the lower end on the absorption towers VOCs 20, and close to purified solution slot 21, gas outlet 202 is set
Upper end in the absorption towers VOCs 20.Be followed successively by from the bottom to top in the absorption towers VOCs 20 purified solution slot 21, the first sprayer 221,
Separate filtering layer 23, the second sprayer 222, condenser 24 and stainless steel demister 25.
Water or dilute alkaline solution, such as sodium hydroxide solution or sodium carbonate liquor are loaded in purified solution slot 21.Only
Change solution tank 21 and connect a circulating pump 81, circulating pump 81 connects a reservoir 82, in circulating pump 81 and purified solution slot 21
Between tool there are one filter membrane 83.The filter membrane 83 can obstruct the polymer etc. of solid particulate matter and larger molecular weight, to protect
Circulating pump 81.Meanwhile by the iris action of the filter membrane 83, the liquid in reservoir 82 is made to keep lower concentration, and had
Better dissolubility.Reservoir 82 is with delivery pump (not painting) connection first order sprayer 221 and second level sprayer 222, and first
Water or dilute alkaline solution can be refined into tiny water mist or droplet by grade sprayer 221 and second season sprayer 222, thus and exhaust gas
Contact area with bigger, improve dissolving exhaust gas in sour gas molecule, esters speed.
Separate filtering layer 23 is preferably a kind of PE filter plates.PE filter plates are with UHMW-PE ultra-high molecular weight polyethylene powder
The filter medium being sintered for raw material by setting technique has excellent acid resistance high temperature resistant and high filtering precision, is easy to regenerate
Etc. performances.By separate filtering layer 23, by some undissolved escaping gas and dissolving but with the solution droplet of air-flow rising
It is retained down Deng by separate filtering layer 23.
Condenser 24 is made of Multi-layer supporting plate 241 and several reducing pipes 242 being embedded in support plate 241.Subtract
The draw 242 is in generally horn-like, and one end is relatively large in diameter the smaller tubular structure of other end diameter, the one end being relatively large in diameter downward,
Upward, in this way, when air-flow passes through reducing pipe 242, air-flow is contracted by the compression of pipe 242 and temperature is caused to drop the smaller one end of diameter
It is low.
Stainless steel demister 25, including multilayer stainless steel plate, is 4 layers of stainless steel plate, every layer of stainless steel plate table as shown in Figure 1
Face is equipped with slit shape elongated hole, and slit-type elongated hole is width 0.12mm~0.3mm* length 6mm~8mm, and density of setting is every
Square centimeter setting 8-12, these slit-type elongated holes are formed by laser cutting technique.Gas and droplet etc. are by this
When a little slit-type elongated holes, it can be forced to form very thin air-flow film, the droplet in air-flow film remains stuck on stainless steel.
After condensed device 24, stainless steel demister 25, almost VOC gas are absorbed with what air-flow rose by whole
Solution water integument is trapped in the absorption towers VOCs 20, ensures the gas dry degree of gas outlet 202.
Exhaust conveying air hose 30 connects the gas outlet 202 on the absorption towers VOCs 20, and exhaust conveying air hose 30 is equipped with first flange
31, an independent oxidation pipeline section 40 is connected by first flange 31, oxidation pipeline section 40 has second flange 41, first flange 31
It is connect for 41 groups with second flange, laminates tracheae 43 is equipped in oxidation pipeline section 40, gas distribution pipe 43 is along the length side for aoxidizing pipeline section 40
To one ozone generator 70 of arranged for interval and connection, gas distribution pipe 43 is equipped with several tiny stomatas, and ozone is from these gas
It is evenly distributed out in hole, redox reaction occurs for the molecule containing VOC gas being sent into exhaust conveying wind 30, some are small
Molecular hydrocarbon aoxidizes.Wherein oxidation pipeline section 40 is individual components, can be detachably connected with exhaust conveying wind 30 and adsorption tanks 50.Oxygen
Changing pipeline section 40 also has third flange 42, is connect with the 4th flange 51 of adsorption tanks 50 by third flange 42.
Adsorption tanks 50 are equipped with air intake 52 and exhaust outlet 53, and the tank body of adsorption tanks 50 is in long tubular, in adsorption tanks 50 along tank
Body cross section direction is equipped with several baffle plates 54, as shown in Figure 1, being equipped with 7 baffle plates 54.The surface of baffle plate 54 is covered with
It is supporting substrate on the inside of activated carbon, it is preferred that its supporting substrate is selected as porous ceramic substrate.Baffle plate 54 is by adsorption tanks 50
Inner space forms S-shaped and is bent gas flow, while the air intake of tank body 52 and exhaust outlet 53 being obstructed, and can accumulate the dense of gas
Degree and pressure extend gas walking path and acting surface, improve the adsorption efficiency of activated carbon.
Water or dilute alkaline soln in the purified solution slot 21 of 20 bottom of the absorption towers VOCs are adsorbing certain density acidity
After the substances such as gas, pH value can change, and when pH value drops to predetermined value, indicate the solution or water in purified solution slot 21
The ability for absorbing VOCs declines.Thus, by setting pH probes, pH probe connection control circuits, control in purified solution slot 21
Circuit connects liquid export pump, will in purified solution slot 21 close to water or the solution export of saturation, and supplement new water or
The dilute alkaline soln newly prepared.
The utility model mainly absorbs the soluble sour gas in industrial waste gas by the absorption towers VOCs, including N and
The bigger molecules volatile toxic gas such as sulfur oxide and some esters, polymer monomer, the hydrocarbon of the small molecule of discharge
Class and halogenated hydrocarbon continue on through oxidation pipeline section multistage ozone and uniformly aoxidize, then again by the activated carbon of adsorption tanks to smaller point
Son is absorbed, and last clean gas drains into air, and reaching reduces VOC content purpose in industrial tail gas.It is one to aoxidize pipeline section
Absolute construction, convenient for connection as needed or dismounting or repair etc., it is the baffle plate of activated carbon covering to have surface in adsorption tanks,
With ideal adsorption cleaning efficiency.
Claims (7)
1. the device of VOC in a kind of removal industrial tail gas, characterized in that described device includes:
There is air inlet and gas outlet, the air inlet to be set to the absorption towers VOCs for the absorption towers VOCs, the absorption towers VOCs
Lower end, the gas outlet are set to the absorption towers VOCs upper end, and the absorption towers VOCs are set as purified solution successively from bottom to top
Slot, first order sprayer, separate filtering layer, second level sprayer, condenser, stainless steel demister;
Exhaust conveying air hose, exhaust conveying air hose one end connect the gas outlet on the absorption towers VOCs, the exhaust conveying
The detachably connected oxidation pipeline section of the air hose other end;What the oxidation inner tube segment was connect equipped with more with ozone generator
Gas distribution pipe, the gas distribution pipe are equipped with stomata and in the height direction interval stacking arrangement;
There is air intake and exhaust outlet, the air intake to connect the oxidation pipeline section, the exhaust outlet for adsorption tanks, the adsorption tanks
Exhaust chimney is connected, is covered with the baffle plate of active carbon layer in the adsorption tanks equipped with surface, the baffle plate is by the absorption
The inside of tank is separated into S-shaped gas flow.
2. the apparatus according to claim 1, characterized in that be loaded with water or alkaline solution, institute in the purified solution slot
It states purified solution slot and connects a circulating pump, the circulating pump connects reservoir, and the reservoir connects the first order spraying
Device and second level sprayer.
3. the apparatus of claim 2, characterized in that be equipped with filter between the purified solution slot and the circulating pump
Film.
4. the apparatus according to claim 1, characterized in that the separate filtering layer is PE filter plates.
5. the apparatus according to claim 1, characterized in that the condenser is by Multi-layer supporting plate and is embedded in the support
Several reducing pipes composition on plate, downward, the smaller one end of diameter is arranged upward for one end that each reducing pipe is relatively large in diameter.
6. the apparatus according to claim 1, characterized in that the stainless steel demister includes stainless steel plate and is opened in institute
State the slit shape elongated hole of stainless steel surface, the slit-type elongated hole be width 0.12mm~0.3mm* length 6mm~
8mm, density of setting are setting 8-12 every square centimeter.
7. the apparatus according to claim 1, characterized in that the purified solution slot is popped one's head in equipped with pH, the purified solution
Slot connects an export pump, and the export pump controls start and stop by a control circuit, and the control circuit is popped one's head according to the pH
Testing result starts the solution that export pump exports the purified solution slot when pH is less than setting value.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109569201A (en) * | 2018-11-27 | 2019-04-05 | 华南理工大学 | A kind of vinylacetate prepares the processing method of acetaldehyde byproduct in acetate starch production process |
CN109908695A (en) * | 2019-04-26 | 2019-06-21 | 陈小龙 | A kind of industrial waste gas energy-efficient treatment device |
WO2020083164A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine tail gas ozone purifying system and method |
CN116173715A (en) * | 2023-04-25 | 2023-05-30 | 北京科力丹迪技术开发有限责任公司 | Alkaline washing tower for treating tail gas from polyethylene production and use method thereof |
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2018
- 2018-01-30 CN CN201820170792.0U patent/CN207970680U/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020083164A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine tail gas ozone purifying system and method |
WO2020083167A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine exhaust ozone purification system and method |
CN109569201A (en) * | 2018-11-27 | 2019-04-05 | 华南理工大学 | A kind of vinylacetate prepares the processing method of acetaldehyde byproduct in acetate starch production process |
CN109908695A (en) * | 2019-04-26 | 2019-06-21 | 陈小龙 | A kind of industrial waste gas energy-efficient treatment device |
CN116173715A (en) * | 2023-04-25 | 2023-05-30 | 北京科力丹迪技术开发有限责任公司 | Alkaline washing tower for treating tail gas from polyethylene production and use method thereof |
CN116173715B (en) * | 2023-04-25 | 2023-08-22 | 北京科力丹迪技术开发有限责任公司 | Alkaline washing tower for treating tail gas from polyethylene production and use method thereof |
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Address after: 518129 Room 401, building 1, Jinyuan science and Technology Industrial Park, 52 Fengmen Road, Gangtou community, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN SHUANGRUI ENVIRONMENTAL ENERGY TECHNOLOGY Co.,Ltd. Address before: No.4 Bulong Road, Minzhi street, Longhua New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SHUANGRUI ENVIRONMENTAL ENERGY TECHNOLOGY Co.,Ltd. |