CN208049687U - A kind of cleaning equipment for waste organic gas - Google Patents
A kind of cleaning equipment for waste organic gas Download PDFInfo
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- CN208049687U CN208049687U CN201820349033.0U CN201820349033U CN208049687U CN 208049687 U CN208049687 U CN 208049687U CN 201820349033 U CN201820349033 U CN 201820349033U CN 208049687 U CN208049687 U CN 208049687U
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Abstract
This application provides a kind of cleaning equipment for waste organic gas,The purifier includes air-water mixer,Air-water separator that is on the downside of the air-water mixer and being connected with the air-water mixer,The air-water mixer is provided with an exhaust gas entrance,It is provided with exhaust gas plasma processor on the upside of the air-water mixer,The exhaust gas plasma processor includes the first pipe as block media being connected with the air-water mixer,The second pipe as grounding electrode being connected with the air-water separator in first pipe,The high-field electrode being affixed on first pipe outer wall,The upper end of the second pipe is provided with one and is used for the water distributor in the water distribution to first pipe in the second pipe,Water film is formed on the outer wall of the second pipe,The water film and the duct wall of the first pipe form bi-medium to block layer.
Description
Technical field
This application involves a kind of cleaning equipment for waste organic gas, more particularly to a kind of efficient, cleaning, are applicable in organic exhaust gas concentration
Range is wide, integrated operation cost is relatively low, process safety moisture film/quartz ampoule double-dielectric barrier discharge plasma organic exhaust gas is net
Makeup is set.
Background technology
With the rapid development of Chinese national economy, especially chemical industry and manufacturing development, volatile organic matter
(VOCs) industrial emission source and discharge capacity is continuously increased.The exhaust gas containing organic solvent is often will produce in surface spraying process, such as
Dimethylbenzene, toluene, ethyl acetate, butanone etc.；A large amount of differences can be also discharged in the processes such as organic chemicals synthesis and petroleum refining
Foul waste gas, wherein the often organic compound containing low boiling point, high volatile, not only toxic but also inflammable and explosive.VOCs is not only
There are stimulation, a toxic action to human body, some or mutagen and carcinogenic substance.And the alkene in VOCs and certain aromatic hydrocarbon chemical combination
Once entering environment, exposure in the sun, can also react to form the photochemical fog of Los Angeles type object with nitrogen oxides
Or industrial photochemical smoke, secondary pollution is caused, haze is formed.Therefore, it is controlled after dedusting, desulphurization and denitration and automobile pollution
After reason, the environmental pollution of VOCs exhaust gas has become current Air Pollution Control field urgent problem to be solved.It is badly in need of exploitation one
Kind efficiently, it cleans, have a wide range of application, the industrial waste gas purifying technology that operating cost is cheap and device.
Plasma technique is applied to the improvement of VOCs exhaust gas, because its process need not add any chemical reagents, processing
Process is simple and effect is good, the more low technical advantage of integrated operation cost, and the focus for having become VOCs waste gas pollution control and treatments in recent years is ground
Study carefully direction and the relevant technologies achievement has been successfully applied in the practical improvement of VOCs exhaust gas.Independent plasma is developed
The direct treatment technology of VOCs exhaust gas；After plasma-catalytic oxidation technology, including catalyst merging region of discharge or merging region of discharge
The concerted catalysis oxidation technology at end；In addition, the also combination technique of plasma technique and other waste gas pollution control and treatment technologies.Due to etc.
The generation process of gas ions is to utilize to apply high voltage between electrode pair to filling gas discharge therebetween and it being made to ionize, hit
The gas " plasma-based " that gas blanket forms electroneutral caused by stable discharging process is worn, it is such as each including a large amount of active species
Kind free radical, high energy electron etc..Therefore, using atmospherical discharges plasma technique can realize in air-flow VOCs it is direct efficiently
Oxidation, purification.Exactly because but also igniting, occurring in this way, existing during handling VOCs exhaust gas using plasma technique
Fire or the security risk of explosion.Therefore, it is low to be only suitable for processing inlet gas concentration for the plasma treatment technique of existing literature report
In 1000mg/m3VOCs exhaust gas；There is also plasma treatment procedures will produce by-product simultaneously, such as ozone, NOX, nitrate
Class or organic intermediate products, such as tar remain in tail gas, form new secondary pollution；Or generate nitrate, secondary have
Machine object etc. adsorbs or is deposited on catalyst surface by catalyst, leads to the inactivation of catalyst, plasma body cooperative is caused to be catalyzed
The decline and its maintenance of oxidation effectiveness, the increase of operating cost.Therefore, these problems become limitation plasma technique and exist again
Apply technical problem urgently to be resolved hurrily in VOCs exhaust-gas treatments field.
Utility model content
Be applicable in that organic exhaust gas concentration is low and the by-product of generation causes secondary dirt to solve existing plasma treatment technique
The problems such as dye, the application technical problems to be solved are to provide that a kind of applicable organic exhaust gas concentration range is wide, integrated operation cost
Relatively low, process safety cleaning equipment for waste organic gas.
In order to solve the above-mentioned technical problem, a kind of cleaning equipment for waste organic gas, the purifier include air-water mixing
Device, on the downside of the air-water mixer and the air-water separator that is connected with the air-water mixer, it is described
Air-water mixer is provided with an exhaust gas entrance, and exhaust gas plasma processor is provided on the upside of the air-water mixer,
The exhaust gas plasma processor includes first pipe, the second pipe in first pipe, is affixed on outside first pipe
High-field electrode on wall, the lower end of the first pipe are connected with the air-water mixer, the second pipe
Lower end is connected with the air-water separator, and the upper end of the second pipe is provided with a water distributor, the water distribution
Device is used to make the water distribution in the second pipe to second pipe outer wall, flows downward in the outer wall formation of second pipe
Water film, formed between the first pipe and second pipe for exhaust gas to it is lower and on the region of discharge that passes through, it is a kind of preferably
In embodiment, the first pipe and second pipe coaxial arrangement.
Preferably, the first pipe is made of quartz or ceramic material, and the second pipe is conductive corrosion-resistant
Material is made, and such as stainless steel material, the second pipe is grounding electrode, and the high-field electrode is to be tightly attached to described the
Stainless (steel) wire on one pipeline outer wall.
Preferably, the exhaust gas plasma processor further includes a medium-frequency high-voltage power supply, the high-field electrode with
The high-field electrode of the medium-frequency high-voltage power supply connects, the earthing pole phase of the second pipe and the medium-frequency high-voltage power supply
It connects.
Preferably, the upper end of the first pipe is additionally provided with demisting reflux, the demisting reflux
For removing the moisture in region of discharge in exhaust gas, and the moisture in exhaust gas is made to flow to the outer wall of the second pipe.
Preferably, the upper end of the first pipe is also communicated with an induced duct, is additionally provided on the induced duct
One air-introduced machine, the induced duct are that PP etc. is corrosion-resistant, and nonconducting organic material is process.
Preferably, be additionally provided on the connecting pipe of the second pipe and the air-water separator one for will
Water in the air-water separator is delivered to the water pump in the second pipe.
Preferably, the purifier further includes the liquid level sensor being mounted in air-water separator, is mounted on exhaust gas
The gas monitoring sensors of plasma processor air outlet, the automatic benefit for supplementing water into the air-water separator
Hydrophone.
A kind of this exhaust gas purifying method of cleaning equipment for waste organic gas, the purification method include the following steps：
(1) water in air-water separator is delivered in second pipe using water pump first, into the flow of second pipe
It flow to baffling in water distributor from the bottom up and forms water film vertically downward along the outer wall of second pipe, the water film is in weight
Pass through the air-water mixer under force effect, and falls in the air-water separator；
(2) high voltage power supply is opened, forms high voltage discharge field between first pipe and second pipe, to by region of discharge
Water film carries out electrion processing；
(3) and then it is then turned on air-introduced machine, exhaust gas is made to enter the air-water mixer from exhaust gas entrance, mixed in air-water
In device, VOCs exhaust gas with electric discharge after deionized water mix, pre-oxidize after be fully absorbed, absorb VOCs aqueous solution dependence weigh
Power gravity flow, which enters, carries out gas water separation in air-water separator, the off-gas flows risen after water absorbs enter exhaust gas plasma
The region of discharge of processor carries out plasma oxidation processing, while being handled by further absorption at the interface of discharging water.
Preferably, the purification method further includes step (4), and treated air-flow is using in exhaust gas plasma
Droplet is intercepted, is deviate from by the demisting reflux of processor upper end installation, and generation contains corona treatment secondary pollution
De- fog and second pipe outer layer moisture film cocurrent after flow back into air-water mixer and recycle.
Preferably, gas water volume ratio is 2~100 in the air-water mixer.
A kind of cleaning equipment for waste organic gas and purification method of the application, in air-water mixer, VOCs exhaust gas and electric discharge
Deionized water afterwards is mixed, is fully absorbed after pre-oxidation, to reduce the concentration of VOCs in gas phase, is avoided in discharge process because of gas
Phase VOCs concentration height cause fire, explosion risk.Treated, and air-flow is pacified using in exhaust gas plasma processor upper end
The demisting reflux of dress intercepts droplet, abjection, the de- fog containing corona treatment secondary pollution of generation and the
It flows back into air-water mixer and recycles after two pipeline outer-layer moisture film cocurrents.It thereby realizes and makes full use of double medium resistances
The ozone not being fully utilized, hydrogen peroxide and the other secondary activated products (such as nitrogen oxides) of electrion generation are kept off to height
The safe efficient processing of concentration VOCs exhaust gas, permission air inlet when having expanded previous plasma technique safe handling exhaust gas are dense
Degree, while can effectively solve the problem that ozone, nitrogen oxides and organic by-products discharge that the direct processing procedure of plasma is formed again
Caused by secondary environmental pollution problem.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of cleaning equipment for waste organic gas described herein；
Fig. 2 is the sectional view in the directions A-A of Fig. 1,
Wherein：11, air-introduced machine；12, induced duct；2, air-water mixer；21, exhaust gas entrance；3, air-water separator；31,
Water pump；32, second pipe (grounding electrode)；4, exhaust gas plasma processor；41, high-field electrode；42, first pipe；43, in
Frequency high voltage power supply；5, water distributor；6, demisting reflux；7, blind controller system；8, water film.
Specific implementation mode
The application is described further in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It more fully understands the application and can be practiced, but illustrated embodiment is not as the restriction to the application.
As shown in Figure 1, this application provides a kind of cleaning equipment for waste organic gas, the purifier includes that air-water is mixed
Clutch 2, positioned at 2 downside of the air-water mixer and the air-water separator 3 that is connected with the air-water mixer 2,
The air-water mixer 2 is provided with an exhaust gas entrance 21, and the upside of the air-water mixer 2 is provided with exhaust gas plasma
Body processor 4.
The exhaust gas plasma processor 4 include first pipe 42, the second pipe 32 in first pipe 42,
The high-field electrode 41 being affixed on 42 outer wall of first pipe, the lower end of the first pipe 42 and 2 phase of air-water mixer
Connection, the lower end of the second pipe 32 are connected with the air-water separator 3, the upper end of the second pipe 32
Portion is provided with a water distributor 5, and the water distributor 5 is used to make outside the water distribution to second pipe 32 in the second pipe 32
Wall forms the water film to flow downward, shape between the first pipe 42 and second pipe 32 in the outer wall of second pipe 32
At for exhaust gas by region of discharge.The first pipe 42 is made of quartz or ceramic material, and the second pipe 32 is
Stainless steel material is made, and the second pipe 32 is grounding electrode, and the high-field electrode 41 is to be tightly attached to described first
Stainless (steel) wire on 42 outer wall of pipeline.The upper end of the first pipe 42 is additionally provided with demisting reflux 6, and described removes
Mist reflux 6 is used to remove the moisture in region of discharge in exhaust gas, and the moisture in exhaust gas is made to flow to the second pipe
32 outer wall.The upper end of the first pipe 42 is also communicated with an induced duct 12, is additionally provided on the induced duct 12
One air-introduced machine 11.One is additionally provided on the connecting pipe of the second pipe 32 and the air-water separator 3 to be used for institute
Water in the air-water separator 3 stated is delivered to the water pump 31 in the second pipe 32.The purifier further includes peace
Liquid level sensor in air-water separator 3, the gas-monitoring sensing mounted on 4 air outlet of exhaust gas plasma processor
Device, the automatic water replenishing device for supplementing water into the air-water separator.
As shown in Fig. 2, the exhaust gas plasma processor 4 further includes a medium-frequency high-voltage power supply, the high-voltage electricity
Pole 41 connects with the high-field electrode 41 of the medium-frequency high-voltage power supply, the second pipe 32 and the medium-frequency high-voltage power supply
Earthing pole connect.
The operation principle of cleaning equipment for waste organic gas described herein is：First with 12 structure of air-introduced machine 11 and induced duct
At gas sampling and transport system the exhaust gas that production process generates is transported in air-water mixer 2, according to certain gas/
Water is than dissolving the VOCs in exhaust gas in deionized water after discharge；Then absorb VOCs aqueous solution by flow by gravity into
Enter progress gas water separation in air-water separator 3.Aqueous solution water pump 31 in air-water separator 3 squeezes into exhaust gas plasma
In second pipe 32 in processor 4, the second pipe 32 is stainless steel tube, as grounding electrode.The exhaust gas plasma
Body processor 4 is fitted tightly over the outer tube layer using quartz ampoule or ceramic tube as electrion block media, with 60 mesh stainless (steel) wires
As high-field electrode 41.Into stainless steel tube grounding electrode flow flow to from the bottom up its top installation water distributor 5 in roll over
Stream forms water film 8 straight down along the outer wall of the electrode, enters exhaust gas etc. in opposite directions with the air-flow risen in first pipe 42
The high voltage discharge field of gas ions processor 4 carries out plasma oxidation processing.Treated air-flow is using in exhaust gas plasma
Droplet is intercepted, is deviate from by the demisting reflux 6 of 4 upper end of body processor installation, and generation contains the secondary dirt of corona treatment
It flows back into air-water mixer 2 and recycles after the de- fog and stainless steel tube grounding electrode outer layer moisture film cocurrent of dye object.In this way
It is achieved that the ozone not being fully utilized for making full use of moisture film/quartz ampoule bi-medium to block electrion to generate, hydrogen peroxide
And safe efficient processing of other secondary activated products (such as nitrogen oxides) to high concentration VOCs exhaust gas, it has expanded previous etc.
Gas ions technical security handles permission inlet gas concentration when exhaust gas, while can effectively solve the problem that the direct processing procedure of plasma again
Secondary environmental pollution problem caused by ozone, nitrogen oxides and the organic by-products of formation are discharged.
The cleaning equipment for waste organic gas structure and its specific operating process and important technological parameters are as follows：
According to the emission flow of certain VOCs exhaust gas, select 1 matching air quantity, wind pressure explosion-proof air-introduced machine 11 with corrosion-resistant
PP or the induced duct 12 that is process of PVC material constitute the collection, conveying and exhaust system of pending exhaust gas.Be used in combination flange with
Relevant device, processing tail gas and the blowdown stack of exhaust-gas treatment are tightly connected.Using materials such as corrosion-resistant, nonconducting PP or PVC
Material one air-water mixer 2 for meeting certain gas-water ratio demand size of processing.The work water of air-water mixer 2 is to go
Ionized water, for VOCs exhaust gas is pre-oxidized in air-water mixer 2 in discharge process with mass transfer, fully absorb in exhaust gas
VOCs components, to reduce the concentration of VOCs in gas phase, avoid discharge process because gas phase VOCs concentration height cause fire, explosion
Risk；And the deep oxidation and degradation process for promoting electric discharge to generate plasma to organic matter in liquid phase.Air-water mixer 2
Lower section be one seal the air-water separator 3 with appropriate volume size of installation with it.In air-water mixer 2 fully
The electric discharge aqueous solution for absorbing exhaust gas VOCs can be swimmingly from inflow air-water separator 3 by gravity；After discharging water absorbs
Exhaust gas then from the top of air-water mixer 2 outlet be directly entered in plasma oxidation processor.Air-water separator 3 is equipped with
Bottom valve is simultaneously connected with water circulating pump 31.According to the technical controlling requirement that gas water ratio is 2~100 ranges, the flow of water pump 31 is answered
Meet needs.In the vertically-mounted quartz ampoule dielectric barrier discharge exhaust gas plasma processor in the top of air-water mixer 2
4.The exhaust gas plasma processor 4 includes first pipe 42, and first pipe 42 is quartz ampoule.Exhaust gas corona treatment
The quartzy pipe outer wall of device 4 fits closely 60 mesh stainless (steel) wires as high-field electrode 41；High-field electrode 41 and a medium-frequency high-voltage electricity
The high-field electrode 41 in source 43 connects.One stainless steel tube is installed along 4 quartz ampoule axle center of exhaust gas plasma processor, with high pressure
The earthing pole of power supply connects, the grounding electrode as exhaust gas plasma processor 4.Exhaust gas plasma processor 4 not
The upper end of rust steel pipe grounding electrode is installed by one water distributor 5；The lower end pipeline of stainless steel tube grounding electrode and air-water separator
3 water circulating pump 31 is connected.It can directly be squeezed into after absorbing the aqueous solution unlatching water pump 31 of exhaust gas in air-water separator 3
In the stainless steel tube grounding electrode of exhaust gas plasma processor 4, flow flow to baffling edge in top water distributor 5 and is somebody's turn to do from the bottom up
The outer wall of electrode forms vertically dirty moisture film, enters in opposite directions with from the off-gas flows risen after water absorbs in air-water mixer 2
The region of discharge of exhaust gas plasma processor 4 carries out plasma oxidation processing.In the quartz ampoule of exhaust gas plasma processor 4
Inner wall region of discharge above region between 5 lower section of water distributor install one and tilt 55-65 ° of angle to stainless steel tube grounding electrode
Demisting reflux 6, intercept, deviate from for the droplet in off-gas flows after handle；The de- fog and stainless steel tube generated
Grounding electrode outer layer moisture film cocurrent, region of discharge of the reflux stream through exhaust gas plasma processor 4 enter back into air-water mixing
It is recycled in device 2.Automatic water replenishing device and VOCs sensors and blind controller system 7.This is monitored by liquid level sensor, VOCs
The instruction of sensor is formed with the relevant control system of solenoid valve.Liquid level sensor is mounted in air-water separator 3, for mending
Water is issued with the instruction for stopping moisturizing；It is supervised in air outlet installation VOCs, ozone and the nitrogen oxides of exhaust gas plasma processor 4
Sensor is surveyed, the concentration of index of correlation in the gas of monitoring discharge in real time.According to the dense of VOCs, ozone and the nitrogen oxides monitored in real time
Degree optimizes discharge voltage and gas water ratio, so that VOCs exhaust gas qualified discharges, and electrion by-product is reduced to greatest extent
Discharge.
The operation operating method of cleaning equipment for waste organic gas：Before exhaust-gas treatment, according to the charge flow rate of exhaust gas, in advance
Water pump 31 is opened to corresponding flow, makes gas water ratio in 2-100 ranges；It is then turned on high voltage power supply and adjusts its discharge voltage
It is capable of to exhaust gas plasma processor 4 under the operating voltage of stable discharging, allows after system stable operation 5min and be then turned on air inducing
Machine 11.This just constitute moisture film/quartz ampoule double-dielectric barrier discharge plasma organic waste gases purifying technology of complete set with
Device.According to the Drainage feature (such as pollutant kind, emission source intensity) of exhaust emissions source height and factory VOCs exhaust gas, and
Its prescribed requirement reaches《Discharge standard of air pollutants》(GB16297) limit value in is real with VOCs monitoring sensors
When control instruction, the technical parameter of exhaust treatment system is set, whole system is made to be in full automation state of a control.User can
According to actual needs, exhaust treatment system and apolegamy relevant device are designed than range according to the gas water of optimization, by parameter optimization
Moisture film afterwards/quartz ampoule double-dielectric barrier discharge plasma organic waste gases purifying device can meet different types of industry has
The processing requirement of machine exhaust gas.
Comparative example 1
The clean-up effect of containing xylene emission is analyzed in anhydrous directly electric discharge
To the industrial waste gas containing dimethylbenzene, it is real with measure of merit that discharge treatment has been carried out using the technology and its small testing device
It tests, the design exhaust-gas treatment ability of small testing device is 0.001m3/min.Experimental result participates in the following table 1.The anhydrous absorption the case where
Under, the exhaust gas plasma processor 4 be capable of stable discharging work supply voltage between 40-60V, using the exhaust gas etc. from
Daughter processor 4 is 400mg/m to inlet gas concentration3Xylene waste gas carry out discharge treatment, the concentration of gas outlet dimethylbenzene is equal
Less than discharge standard.But the concentration of the total volatile organism TVOC of gas outlet significantly rises after voltage is more than 50V, and is more than
The discharge standard of total volatile organism TVOC.Simultaneously under all working discharge voltage, gas outlet monitors higher concentration
Ozone and nitrogen oxides.
Anhydrous clean-up effect of the directly electric discharge to containing xylene emission of table 1
Embodiment one
Moisture film-quartz ampoule bi-medium to block electrion analyzes the clean-up effect of containing xylene emission.
Using the technology and its small testing device in the case where controlling gas-water ratio to the dimethylbenzene industrial waste gas containing high concentration
Discharge treatment has been carried out to test with measure of merit.When experiment, the operating voltage of high voltage power supply is controlled in 50V, and dimethylbenzene air inlet is dense
Degree control is 1000mg/m3.Experiment finds that, when there is water absorption, gas-water ratio can significantly influence the treatment effect of plasma.
Experimental result participates in the following table 2.It is 2 in gas-water ratio, 31 inflow of water pump is larger, stainless steel tube grounding electrode outer layer moisture film is thicker
When, high concentration xylene waste gas is put using moisture film-quartz ampoule bi-medium to block high-voltage discharge plasma treatment technology
Electric treatment, after the exhaust gas plasma processor 4 purification, the concentration of gas outlet dimethylbenzene is slightly higher than discharge standard, but
TVOC concentration is far below discharge standard.When gas-water ratio increases to 4 or more, until 100 gas-water ratio range, by 31 inflow of water pump
When reduction, the suitable thickness of moisture film is controlled, the treatment effect of exhaust gas can be effectively improved.In the gas-water ratio range of 2-100, gas outlet
The concentration of dimethylbenzene is below discharge standard.Meanwhile when having water absorption, electrion, the total volatile organism of gas outlet
The concentration of TVOC is below the concentration of dimethylbenzene, also below discharge standard.Although can also monitor a certain concentration in gas outlet
Ozone and nitrogen oxides, but the concentration of ozone and nitrogen oxides than anhydrous absorption when significant reduction.
(operation 6h's is flat for clean-up effect of 2 moisture films of the table-quartz ampoule bi-medium to block electrion to containing xylene emission
Monitor concentration)
Embodiment two
Moisture film-quartz ampoule bi-medium to block electrion analyzes the long-term clean-up effect of containing xylene emission.
Using the technology and its small testing device in the case where controlling gas-water ratio to the dimethylbenzene industrial waste gas containing high concentration
Discharge treatment has been carried out to test with measure of merit.When experiment, the operating voltage of high voltage power supply is controlled in 50V, and dimethylbenzene air inlet is dense
Degree control is 1000mg/m3.Experiment is found, under gas-water ratio appropriate, by 6 days long-plays, the technological system pair two
The treatment effect of toluene waste gas is more satisfactory, stable.It finds simultaneously, the organic matter in water does not occur accumulation phenomenon (in water
Dimethylbenzene and total organic carbon TOC concentration are very low)；Nitrate and nitrite do not occur accumulation phenomenon (note in water：Although cycle
Nitrate concentration is increased with the raising of air inlet xylene concentration in water, but is kept within 50mg/L；Nitrite occasionally has
Detection, concentration are lower).
Experimental result participates in the following table 3.In the range that gas-water ratio is 4-50, using moisture film-high-voltage discharge plasma processing
Technology carries out high concentration xylene waste gas 6 days discharge treatment, after the exhaust gas plasma processor 4 purification, outlet
The concentration of mouth dimethylbenzene is below discharge standard.The concentration of the total volatile organism TVOC of gas outlet is below the dense of dimethylbenzene
Degree, and the discharge standard far below TVOC；The ozone and nitrogen oxides of low concentration are detected in gas outlet.Meanwhile two in water
Toluene and total organic carbon TOC concentration are below 10mg/L；Nitrate and nitrite in water do not occur accumulation phenomenon, nitrate
It is fluctuated in 20-40mg/L ranges, nitrite occasionally has detection.
(operation 6d's is flat for clean-up effect of 3 moisture films of the table-quartz ampoule bi-medium to block electrion to containing xylene emission
Monitor concentration)
Embodiment three
Moisture film-quartz ampoule bi-medium to block electrion analyzes the clean-up effect of chemical industry synthesis workshop exhaust gas containing phenol.
Processing experiment has been carried out to chemical industry synthesis workshop exhaust gas containing phenol using the technology and its small testing device, when experiment,
The operating voltage of high voltage power supply is controlled in 50V.Experimental result participates in the following table 4.As can be seen from the table, off-gas flows during experiment
Middle phenol content is about in 1000mg/m3Left and right, gas-water ratio are controlled in 2-100 ranges, the system in design treatment limit of power
Phenol and TVOC concentration in floss hole tail gas disclosure satisfy that the requirement limit value of discharge standard.Above-mentioned experimental result is said well
The technology is illustrated similarly has fine clean-up effect to the exhaust gas of the phenol containing higher concentration.
Clean-up effect (air-flow temperature of 4. moisture films of the table-quartz ampoule bi-medium to block electrion to the exhaust gas containing phenol
Degree is 45 DEG C)
Embodiment described above is only the preferred embodiment lifted to absolutely prove the application, the protection model of the application
It encloses without being limited thereto.Those skilled in the art on the basis of the application made by equivalent substitute or transformation, in the application
Protection domain within.The protection domain of the application is subject to claims.
Claims (7)
1. a kind of cleaning equipment for waste organic gas, which is characterized in that the purifier includes air-water mixer, positioned at described
Air-water mixer on the downside of and the air-water separator that is connected with the air-water mixer, the air-water mixer
It is provided with an exhaust gas entrance, exhaust gas plasma processor is provided on the upside of the air-water mixer,
The exhaust gas plasma processor includes first pipe, the second pipe in first pipe, is affixed on the first pipe
High-field electrode on pipeline outer wall, the lower end of the first pipe are connected with the air-water mixer, the described second pipe
The lower end in road is connected with the air-water separator, and the upper end of the second pipe is provided with a water distributor, described
Water distributor is used to make the water distribution in the second pipe to second pipe outer wall, is formed to dirty in the outer wall of second pipe
Dynamic water film, formed between the first pipe and second pipe for exhaust gas to it is lower and on the region of discharge that passes through.
2. a kind of cleaning equipment for waste organic gas as described in claim 1, which is characterized in that the first pipe be quartz or
Ceramic material is made, and the second pipe is made of conductive corrosion-resistant material, and the second pipe is grounding electrode, described
High-field electrode be the stainless (steel) wire being tightly attached on the first pipe outer wall.
3. a kind of cleaning equipment for waste organic gas as claimed in claim 2, which is characterized in that the exhaust gas corona treatment
Device further includes a medium-frequency high-voltage power supply, and the high-field electrode connects with the high-field electrode of the medium-frequency high-voltage power supply, described
Second pipe connect with the earthing pole of the medium-frequency high-voltage power supply.
4. a kind of cleaning equipment for waste organic gas as described in claim 1, which is characterized in that the upper end of the first pipe
It is additionally provided with demisting reflux, the demisting reflux is used to remove the moisture in region of discharge in exhaust gas, and makes exhaust gas
In moisture flow to the outer wall of the second pipe.
5. a kind of cleaning equipment for waste organic gas as described in claim 1, which is characterized in that the upper end of the first pipe
It is also communicated with an induced duct, an air-introduced machine is additionally provided on the induced duct.
6. a kind of cleaning equipment for waste organic gas as described in claim 1, which is characterized in that the second pipe with it is described
One is additionally provided on the connecting pipe of air-water separator for the water in the air-water separator to be delivered to described the
Water pump in two pipelines.
7. a kind of cleaning equipment for waste organic gas as described in claim 1, which is characterized in that the purifier further includes peace
Liquid level sensor in air-water separator, mounted on exhaust gas plasma processor air outlet gas monitoring sensors,
Automatic water replenishing device for supplementing from water to the air-water separator.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201779A (en) * | 2018-03-14 | 2018-06-26 | 苏州大学 | A kind of cleaning equipment for waste organic gas and purification method |
| KR20220162901A (en) * | 2021-06-01 | 2022-12-09 | 오영래 | Air sterilization device using RF |
| WO2023183351A1 (en) * | 2022-03-23 | 2023-09-28 | Becton, Dickinson And Company | Gas detection, identification, and quantification systems and devices for medical applications |
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2018
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201779A (en) * | 2018-03-14 | 2018-06-26 | 苏州大学 | A kind of cleaning equipment for waste organic gas and purification method |
| CN108201779B (en) * | 2018-03-14 | 2023-10-27 | 苏州大学 | Organic waste gas purifying device and purifying method |
| KR20220162901A (en) * | 2021-06-01 | 2022-12-09 | 오영래 | Air sterilization device using RF |
| KR102630040B1 (en) | 2021-06-01 | 2024-01-26 | 오영래 | Air sterilization device using RF |
| WO2023183351A1 (en) * | 2022-03-23 | 2023-09-28 | Becton, Dickinson And Company | Gas detection, identification, and quantification systems and devices for medical applications |
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