CN204619664U - A kind of VOCs emission-control equipment - Google Patents
A kind of VOCs emission-control equipment Download PDFInfo
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- CN204619664U CN204619664U CN201420584770.0U CN201420584770U CN204619664U CN 204619664 U CN204619664 U CN 204619664U CN 201420584770 U CN201420584770 U CN 201420584770U CN 204619664 U CN204619664 U CN 204619664U
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Abstract
The utility model relates to a kind of VOCs emission-control equipment, comprise VOCs exhaust gas source, organic matter treating apparatus, blower fan, and tail gas recycle pipeline, described organic matter treating apparatus is connected successively with tail gas recycle pipeline, the inlet end of described organic matter treating apparatus is connected with the Waste gas outlet pipeline of VOCs exhaust gas source, the outlet side of described tail gas recycle pipeline is connected with the FAI Fresh Air Intake end pipeline of VOCs exhaust gas source, described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop, described blower fan is arranged on described closed loop, described organic matter treating apparatus also with organic solvent collecting device pipeline.The utility model achieves the zero-emission of VOCs waste gas, completely eliminates the exhaust emission of VOCs waste gas to environment; Whole processing procedure is simple to operation, treatment effeciency is high, equipment needed thereby is few, and equipment energy consumption is low, well meets modern enterprise to energy-saving and emission-reduction, the requirement improving productivity effect, reduces cost be significant to economizing on resources.
Description
Technical field
The utility model relates to a kind of VOCs emission-control equipment, relates to environment protection treating technical field.
Background technology
As everyone knows, PM2.5(fine particle), the impact of haze weather on the life of the people and health be day by day serious, and VOCs(VOC) be one of main composition factor making PM2.5 concentration abnormality, the total release of current industrial VOCs has reached the level of more than 2,000 ten thousand tons/year.In various occasion with an organic solvent, as sprayed paint, printing, the processing place such as metal degreasing and degreasing, adhesive, pharmacy, plastics, rubber, oil, VOC (being called for short VOCs) is all at contaminated air.People by various removal volatile solvent (as condensation method, absorption method, absorption process, combustion method, bioanalysis, membrane separation process, plasma method, photocatalytic oxidation) pollution control technology, although treatment system and method are constantly updated, clearance or the rate of recovery improve constantly (method had is up to more than 98%), but always there is the discharge of remaining VOCs, be more can not qualified discharge, the dirty gas disposal method had even also can produce secondary pollution.Along with government is to the further increasing of air contaminant treatment supervision, the discharge standard of various places, every profession and trade improves further, makes the processing limit of existing treatment system and method be difficult to the discharge standard requirement adapting to improve constantly.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of VOCs emission-control equipment.
The technical solution of the utility model is:
A kind of VOCs emission-control equipment, comprise VOCs exhaust gas source, for removing the organic matter treating apparatus of VOCs, blower fan, and tail gas recycle pipeline, described organic matter treating apparatus is existing absorption absorption method, absorption absorption method, condensation absorption method, burning method, catalytic burning method, the combination of wherein one or more devices that plasma method or bioanalysis adopt, it is characterized in that: described organic matter treating apparatus is connected successively with tail gas recycle pipeline, the inlet end of described organic matter treating apparatus is connected with the Waste gas outlet pipeline of VOCs exhaust gas source, the outlet side of described tail gas recycle pipeline is connected with the FAI Fresh Air Intake end pipeline of VOCs exhaust gas source, described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop, described blower fan is arranged on described closed loop, described organic matter treating apparatus is also connected with organic solvent collecting device pipeline.
Wherein, on the loop of described blower fan between VOCs exhaust gas source Waste gas outlet and organic matter treating apparatus inlet end, described tail gas recycle pipeline is provided with air compensating device, described air compensating device by passing in closed loop or discharge air, with alleviate or eliminate exist in whole loop cause the problem of changes in air volume because of negative pressure or malleation.
Air quality adjusting device is also provided with between described air compensating device and VOCs exhaust gas source, described air quality adjusting device comprises air temperature modification unit and/or air humidity regulon, thus carries out adjustment according to VOCs exhaust gas source to the specific requirement of air quality and select.
A paint mist treatment device is also provided with between described VOCs exhaust gas source Waste gas outlet and fan air inlet, described paint mist treatment device carries out the Transformatin of coating cloud, dust, mist of oil, aerosol to VOCs waste gas, and is reclaimed by the waste residue gathering-device be connected with its pipeline by the waste residue obtained after process.
A filter and a cooling device is also disposed with between described VOCs exhaust gas source Waste gas outlet and fan air inlet.
Described organic matter treating apparatus is the device adopting absorption absorption method, this device comprises adsorption tanks, described adsorption tanks offer cooling and dehumidifying passage, one end of described cooling and dehumidifying passage is connected with the second blower fan, and the other end of described cooling and dehumidifying passage is connected with the external world.
Described fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline.
Described fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline, is directly connected with next device after another road strides across organic matter treating apparatus.
Described organic solvent collecting device is separated from solvent groove, solvent tank or solvent equipment for purifying.
The utility model has the advantage of: the utility model achieves the zero-emission of VOCs waste gas, overcome equipment manufacture of environmental protection enterprise to want for many years to solve and the technical barrier of unsolved VOCs zero waste gas emission, completely eliminate the exhaust emission of VOCs waste gas to environment; Whole processing procedure is simple to operation, treatment effeciency is high, equipment needed thereby is few, and equipment energy consumption is low, well meets modern enterprise to energy-saving and emission-reduction, the requirement improving productivity effect, reduces cost be significant to economizing on resources.
Accompanying drawing explanation
Figure 1 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 1.
Figure 2 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 2.
Figure 3 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 4.
Figure 4 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 5.
Figure 5 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 6.
Figure 6 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 7.
Figure 7 shows that the structure flow chart of the VOCs exhaust treatment system of the utility model embodiment 8.
Label declaration:
1-paint mist treatment device; 2-organic matter treating apparatus; 3-blower fan; 4-tail gas recycle pipeline; 5-VOCs exhaust gas source; 6-waste residue gathering-device; 7-organic solvent collecting device; 8-air compensating device; 9-air quality adjusting device; 10-second blower fan; 11-filter; 12-cooling device.
Detailed description of the invention
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
Referring to figs. 1 to 7, the utility model relates to a kind of VOCs emission-control equipment, comprise VOCs exhaust gas source, for removing the organic matter treating apparatus of VOCs, blower fan, and tail gas recycle pipeline, described organic matter treating apparatus is existing absorption absorption method, absorption absorption method, condensation absorption method, burning method, catalytic burning method, the combination of wherein one or more devices that plasma method or bioanalysis adopt, described organic matter treating apparatus is connected successively with tail gas recycle pipeline, the inlet end of described organic matter treating apparatus is connected with the Waste gas outlet pipeline of VOCs exhaust gas source, the outlet side of described tail gas recycle pipeline is connected with the FAI Fresh Air Intake end pipeline of VOCs exhaust gas source, described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop, described blower fan is arranged on described closed loop, described organic matter treating apparatus is also connected with organic solvent collecting device pipeline.
On the loop of above-mentioned blower fan between VOCs exhaust gas source Waste gas outlet and organic matter treating apparatus inlet end, described tail gas recycle pipeline is provided with air compensating device, described air compensating device by passing in closed loop or discharge air, with alleviate or eliminate exist in whole loop cause the problem of changes in air volume because of negative pressure or malleation.
Air quality adjusting device is also provided with between above-mentioned air compensating device and VOCs exhaust gas source, described air quality adjusting device comprises air temperature modification unit and/or air humidity regulon, thus carries out adjustment according to VOCs exhaust gas source to the specific requirement of air quality and select.
A paint mist treatment device is also provided with between above-mentioned VOCs exhaust gas source Waste gas outlet and fan air inlet, described paint mist treatment device carries out the Transformatin of coating cloud, dust, mist of oil, aerosol to VOCs waste gas, and is reclaimed by the waste residue gathering-device be connected with its pipeline by the waste residue obtained after process.
A filter and a cooling device is also disposed with between above-mentioned VOCs exhaust gas source Waste gas outlet and fan air inlet.
Above-mentioned organic matter treating apparatus or the device for employing absorption absorption method, this device comprises adsorption tanks, described adsorption tanks offer cooling and dehumidifying passage, one end of described cooling and dehumidifying passage is connected with the second blower fan, and the other end of described cooling and dehumidifying passage is connected with the external world.
Above-mentioned fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline.
Above-mentioned fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline, is directly connected with next device after another road strides across organic matter treating apparatus.
When being also provided with other processing units between VOCs exhaust gas source Waste gas outlet and fan air inlet, when exhaust gas source allows exhaust gas concentration, portion is without organic matter treating apparatus, after filtering or filter and cooling, directly be back to VOCs exhaust gas source from described fan outlet or be connected with FAI Fresh Air Intake end pipeline, promoting treatment effeciency.
Above-mentioned organic solvent collecting device is separated from solvent groove, solvent tank or solvent equipment for purifying.
Consider zero-emission characteristic, the utility model in implementation process can waste gas after filtration or filter cooling after, a part waste gas without organic matter treating apparatus, directly lead to " air compensating device " front or directly lead to " air quality adjusting device " front, thus promote treatment effeciency.
In implementation process
Embodiment 1
Please refer to shown in Fig. 1, the VOCs exhaust treatment system of the present embodiment 1, comprise the organic matter treating apparatus 2 for removing VOCs, blower fan 3 and tail gas recycle pipeline 4, described organic matter treating apparatus 2 is existing absorption absorption method, adsorbs the combination of wherein one or more devices that absorption method, condensation absorption method, burning method, catalytic burning method, plasma method or bioanalysis adopt.
Described organic matter treating apparatus 2 is connected successively with tail gas recycle pipeline 4, the inlet end of described organic matter treating apparatus 2 is connected with VOCs exhaust gas source 5 respectively with the outlet side of tail gas recycle pipeline 4, described VOCs exhaust gas source 5, organic matter treating apparatus 2 and tail gas recycle pipeline 4 form a closed loop (scheme for exhaust gas circulation system), and described blower fan 3 is arranged on described closed loop.
Described VOCs exhaust gas source 5, can be the equipment or the place that produce arbitrarily VOCs waste gas, the such as equipment such as between paint spray booth, drying room, canning cart, cloth coating, artificial leather coating, adhesive article gluing, coating, print, reel off raw silk from cocoons, the place such as the workshop at the device fabrication line such as calendering and place thereof.That is, VOCs exhaust treatment system provided by the utility model and processing method, can be applied to equipment or the place of any generation VOCs waste gas.In processing procedure, the waste gas that VOCs exhaust gas source 5 produces circulates in closed loop, and emissions reduction is in external environment.In VOCs exhaust gas source 5, pollutant pre-corrosion device can also be set, as the facility for removing exhaust emission such as particle expansion chamber, outlet port filter, water screen apparatus, water shower device, and cooling device, heater etc. regulate waste gas to be more convenient for the facility of subsequent treatment.
Described blower fan 3 can arrange one or more, as long as the position of setting is on closed loop.
Shown in Fig. 1, the VOCs waste gas processing method of the present embodiment 1 is as follows:
1, waste gas VOCs exhaust gas source 5 produced is introduced in organic matter treating apparatus 2 by blower fan 3, through the absorption of organic matter treating apparatus 2, the methods such as absorption or burning (comprise absorption absorption method, absorption absorption method, condensation absorption method, burning method, catalytic burning method, plasma method and bioanalysis) process after, a large amount of VOCs contained in waste gas are removed, undertaken reclaiming and subsequent treatment by organic solvent collecting device 7 by the organic solvent absorbed or suction type is collected, described organic solvent collecting device 7 can be separated from solvent groove or solvent tank, may also be solvent equipment for purifying,
3, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source, VOCs content contained in this tail gas can be ignored, can be considered fresh air, under the effect of blower fan 3, return to VOCs exhaust gas source 5 to carry out circulating the high concentration VOCS waste gas replaced out in exhaust gas source.
From foregoing description, the beneficial effects of the utility model are: the zero-emission achieving VOCs waste gas, solve existing waste gas pollution control and treatment technology and are difficult to reach the discharge standard requirement improved constantly, completely eliminate the exhaust emission of VOCs waste gas to environment; Whole processing procedure is simple to operation, treatment effeciency is high, equipment needed thereby is few, and equipment energy consumption is low, well meets modern enterprise to energy-saving and emission-reduction, the requirement improving productivity effect, reduces cost be significant to economizing on resources.
Further, according to each position in VOCs exhaust gas source 5 to the requirement of the air-inlet condition such as wind speed, wind direction, such as paint spray booth requires that the air inlet of distribution plenum can not affect the jet velocity of spray gun and jet direction, in order to avoid affect the even of lacquered surface film thickness, the present embodiment 1 also can be provided with air-distribution device on the outlet side of tail gas recycle pipeline 4, the object of described air-distribution device, distributed wind speed and the airflow direction of each position when being to make tail gas access VOCs exhaust gas source 5 by air-distribution device, meet the requirement that in VOCs exhaust gas source 5, each position is replaced air-inlet condition and waste gas.
Further, because gas exists certain negative pressuren zone or zone of positive pressure in whole exhaust treatment system, in order to the gas volume change caused the condition such as pressure, temperature compensates, the present embodiment 1 is also provided with air compensating device 8 between the outlet side of organic matter treating apparatus 2 and VOCs exhaust gas source 5, described air compensating device 8 by passing into or discharging a certain amount of air in closed loop, with alleviate or eliminate exist in whole exhaust treatment system cause the problem of changes in air volume because of negative pressure or malleation, ensure that system normal table ground runs.
Further, due to different production technologies or the quality requirement of production equipment to air different (such as paint spray booth and the drying room temperature and humidity to air has certain requirement), (such as processing method is for absorbing for the processing method difference of organic matter treating apparatus, absorption or burn) and the boiling point of organic solvent not equal, in order to obtain better exhaust-gas treatment effect, improve the operation stability of whole system and meet the requirement of various processes or production equipment, the utility model has also done further improvement to VOCs exhaust treatment system and processing method, below on the basis of embodiment 1, continue to enumerate embodiment to be described as follows.
Embodiment 2
When organic matter treating apparatus 2 is for including the absorbing recovery device of adsorption tanks, when method for treating organic material is for absorption VOCs:
Please refer to shown in Fig. 2, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 2, also comprises the adsorption system of absorption absorption method, desorption system, condenser system and piece-rate system, and the adsorption tanks of the second blower fan 10 dehumidify, cooling system.
Described second blower fan 10 is connected with the adsorption tanks of organic matter treating apparatus 2, adsorption tanks offers cooling and dehumidifying passage, and one end of described cooling and dehumidifying passage is connected with the second blower fan 10, and the other end of described cooling and dehumidifying passage is connected with the external world.
Shown in Fig. 2, the VOCs waste gas processing method of the present embodiment 2 is as follows:
1, waste gas VOCs exhaust gas source 5 produced is introduced in organic matter treating apparatus 2 by blower fan 3, after the adsorption treatment of organic matter treating apparatus 2, VOCs contained in waste gas is removed in a large number, the organic solvent collected by suction type is reclaimed by organic solvent collecting device 7, and described organic solvent collecting device 7 can be separated from solvent groove, solvent tank or solvent purifying device;
In organic matter processing procedure, because the temperature of adsorption tanks after desorption completes is higher, and there is water vapour, if when temperature and humidity causes adverse effect to production equipment (VOCs exhaust gas source 5), then need to carry out cooling and dehumidifying by the second blower fan 10 pairs of adsorption tanks, gas after cooling and dehumidifying, directly discharged in the air, is not back in VOCs exhaust gas source 5.
2, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source 5, VOCs content contained in this tail gas can be ignored, can be considered fresh air, under the effect of blower fan 3, return to VOCs exhaust gas source 5 carry out replacing the high-concentration waste gas in exhaust gas source, high-concentration waste gas after replacement is arranged outward and is carried out VOCs process, makes it keep the exhaust gas concentration in exhaust gas source region not raise further.
Embodiment 3
When the organic matter treating apparatus 2 that organic matter treating apparatus 2 is for absorbing or burn VOCs, when method for treating organic material is for absorbing or burning VOCs:
Can adopt VOCs exhaust treatment system as shown in Figure 1, processing method can refer to described in embodiment 1.
This embodiment 3 is with the difference of embodiment 2, do not comprise the second blower fan 10, because the interrupted temperature that can not there is the separating process process of absorption absorption method for the organic matter treating apparatus 2 absorbed or burn VOCs raises and the problem of water vapour, therefore cool without the need to carrying out and remove water vapour.
Embodiment 4
When the quality of VOCs exhaust gas source 5 pairs of air has particular/special requirement or organic matter treating apparatus 2 air quality out can not adapt to exhaust gas source 5 pairs of api requests:
Please refer to shown in Fig. 3, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 4, also comprises air quality adjusting device 9.
Described air quality adjusting device 9 is arranged between the outlet side of organic matter treating apparatus 2 and the inlet end of VOCs exhaust gas source 5, described air quality adjusting device 9 can be selected according to the specific requirement of VOCs exhaust gas source 5 pairs of air qualities, such as the temperature and humidity of VOCs exhaust gas source 5 pairs of air has requirement, then air quality adjusting device 9 can comprise air temperature modification unit and/or air humidity regulon, through the adjustment of air quality adjusting device 9, the gas entering VOCs exhaust gas source 5 is made to meet the quality requirement of VOCs exhaust gas source 5 pairs of air.
Shown in Fig. 3, the VOCs waste gas processing method of the present embodiment 4 is as follows:
1, waste gas VOCs exhaust gas source 5 produced is introduced in organic matter treating apparatus 2 by blower fan 3, after the absorption and sorption or burning disposal of organic matter treating apparatus 2, a large amount of VOCs contained in waste gas are removed, reclaimed by organic solvent collecting device 7 by the organic solvent absorbed or suction type is collected, described organic solvent collecting device 7 can be separated from solvent groove, solvent tank or solvent equipment for purifying;
2, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source 5, VOCs content contained in this tail gas can be ignored, can be considered fresh air, after the adjustment of air quality adjusting device 9, under the effect of blower fan 3, return to VOCs exhaust gas source 5 reuse.
Embodiment 5
When containing coating cloud, dust, mist of oil or aerosol in the waste gas that VOCs exhaust gas source 5 produces, when such as VOCs exhaust gas source 5 is paint spray booth:
Please refer to shown in Fig. 4, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 5, also comprises paint mist treatment device 1, between the outlet side that described paint mist treatment device 1 is arranged on described VOCs exhaust gas source 5 and the inlet end of organic matter treating apparatus 2.
Please refer to shown in Fig. 4, the VOCs waste gas processing method of the present embodiment 5 is as follows:
1, the waste gas that VOCs exhaust gas source 5 produces is introduced the Transformatin carrying out coating cloud, dust, mist of oil, aerosol in paint mist treatment device 1 by blower fan 3, the waste residue obtained after process reclaims by waste residue gathering-device 6;
2, the waste gas after process enters in organic matter treating apparatus 2 under the effect of blower fan 3, after the absorption and sorption or burning disposal of organic matter treating apparatus 2, VOCs contained in waste gas is removed in a large number, reclaimed by organic solvent collecting device 7 by the organic solvent absorbed or suction type is collected, described organic solvent collecting device 7 can be separated from solvent groove, solvent tank or solvent equipment for purifying;
3, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source, VOCs content contained in this tail gas can be ignored, can be considered fresh air, under the effect of blower fan 3, return to VOCs exhaust gas source 5 carry out replacing the high-concentration waste gas in exhaust gas source, high-concentration waste gas after replacement is arranged outward and is carried out VOCs process, makes it keep the exhaust gas concentration in exhaust gas source region not raise further.
Described paint mist treatment device 1 can be arranged separately, also may be incorporated in organic matter treating apparatus 2, if allow waste gas first after the process of coating cloud, dust, mist of oil or aerosol again through organic matter process.
Also there is waste gas in Fig. 5 embodiment no longer draws to air compensating device direct time through organic matter treating apparatus after paint mist treatment device, and can promote treatment effeciency like this, be also a kind of process approach.
Embodiment 6
When VOCs exhaust gas source 5 produce EGT higher, as VOCs exhaust gas source 5 be drying room, baking oven time:
Please refer to shown in Fig. 5, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 6, also comprises filter 11 and cooling device 12, between the outlet side that described filter 11 and cooling device 12 are arranged on described VOCs exhaust gas source 5 and the inlet end of organic matter treating apparatus 2.
Shown in Fig. 5, the VOCs waste gas processing method of the present embodiment 6 is as follows:
1, waste gas VOCs exhaust gas source 5 produced is introduced in filter 11 by blower fan 3 and is filtered, and then enters cooling device 11 and carries out cooling (need not pass through this road refrigerating work procedure for low temperature waste gas);
2, introduce in organic matter treating apparatus 2 by blower fan 3 again through cooled waste gas, after the absorption or absorption of organic matter treating apparatus 2, VOCs contained in waste gas is removed in a large number, reclaimed by organic solvent collecting device 7 by the organic solvent absorbed or suction type is collected, described organic solvent collecting device 7 can be separated from solvent groove, solvent tank or solvent equipment for purifying;
3, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source, VOCs content contained in this tail gas can be ignored, and can be considered fresh air, returns to VOCs exhaust gas source 5 and reuse under the effect of blower fan 3.
Above-described embodiment 2 or 3 and embodiment 4 ~ 6 can be combined, to adapt to the VOCs exhaust-gas treatment under different situations.Such as when organic matter treating apparatus 2 is adsorption tanks, and the quality of VOCs exhaust gas source 5 pairs of air is when having a particular/special requirement, described VOCs exhaust treatment system is on the basis of embodiment 1, comprise the second blower fan 10 and air quality adjusting device 9, described VOCs waste gas processing method comprises cooling and dehumidifying step to adsorption tanks and air quality regulating step simultaneously simultaneously.In order to be illustrated more clearly in this combined situation, be described in detail below for embodiment 7 and embodiment 8, other more combined situation can refer in like manner again.
Embodiment 7
When organic matter treating apparatus 2 is for including the absorbing recovery device of adsorption tanks, and when the quality of VOCs exhaust gas source 5 pairs of air has a particular/special requirement:
Please refer to shown in Fig. 6, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 7, also comprises the second blower fan 10 and air quality adjusting device 9.
Described second blower fan 10 is connected with the adsorption tanks of organic matter treating apparatus 2, adsorption tanks offers cooling and dehumidifying passage, and one end of described cooling and dehumidifying passage is connected with the second blower fan 10, and the other end of described cooling and dehumidifying passage is connected with the external world.
Described air quality adjusting device 9 is arranged between the outlet side of organic matter treating apparatus 2 and VOCs exhaust gas source 5, described air quality adjusting device 9 can be selected according to the specific requirement of VOCs exhaust gas source 5 pairs of air qualities, such as the temperature and humidity of VOCs exhaust gas source 5 pairs of air has requirement, then air quality adjusting device 9 can comprise air temperature modification unit and/or air humidity regulon, through the adjustment of air quality adjusting device 9, the gas entering VOCs exhaust gas source 5 is made to meet the quality requirement of VOCs exhaust gas source 5 pairs of air.
Shown in Fig. 6, the VOCs waste gas processing method of the present embodiment 7 is as follows:
1, waste gas VOCs exhaust gas source 5 produced is introduced in organic matter treating apparatus 2 by blower fan 3, after the adsorption treatment of organic matter treating apparatus 2, a large amount of VOCs contained in waste gas are removed, the organic solvent collected by suction type is reclaimed by organic solvent collecting device 7, and described organic solvent collecting device 7 can be separated from solvent groove, solvent tank or solvent equipment for purifying;
In organic matter processing procedure, because the temperature of adsorption tanks after desorption completes in tank is higher, need cooling in time, and there is water vapour, water vapour enters VOCs exhaust gas source 5 will affect its working environment, and it is unfavorable to cause, therefore need in the cooling and dehumidifying passage of adsorption tanks, to pass into fresh air by the second blower fan 10, cool adsorption tanks and take away the water vapour in adsorption tanks, the gas after cooling and dehumidifying, directly discharged in the air, is not back in VOCs exhaust gas source 5.
2, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source 5, VOCs content contained in this tail gas can be ignored, can be considered fresh air, after the adjustment of air quality adjusting device 9, under the effect of blower fan 3, return to VOCs exhaust gas source 5 reuse.
Embodiment 8
When in the waste gas that VOCs exhaust gas source 5 produces containing coating cloud, organic matter treating apparatus 2 for including the absorbing recovery device of adsorption tanks, and when the quality of VOCs exhaust gas source 5 pairs of air has a particular/special requirement:
Please refer to shown in Fig. 7, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 5, also comprises paint mist treatment device 1, second blower fan 10 and air quality adjusting device 9.
Between the outlet side that described paint mist treatment device 1 is arranged on described VOCs exhaust gas source 5 and the inlet end of organic matter treating apparatus 2.
Described second blower fan 10 is connected with the adsorption tanks of organic matter treating apparatus 2, adsorption tanks offers cooling and dehumidifying passage, and one end of described cooling and dehumidifying passage is connected with the second blower fan 10, and the other end of described cooling and dehumidifying passage is connected with the external world.
Described air quality adjusting device 9 is arranged between the outlet side of organic matter treating apparatus 2 and VOCs exhaust gas source 5, described air quality adjusting device 9 can be selected according to the specific requirement of VOCs exhaust gas source 5 pairs of air qualities, such as the temperature and humidity of VOCs exhaust gas source 5 pairs of air has requirement, then air quality adjusting device 9 can comprise air temperature modification unit and/or air humidity regulon, through the adjustment of air quality adjusting device 9, the gas entering VOCs exhaust gas source 5 is made to meet the quality requirement of VOCs exhaust gas source 5 pairs of air.
Shown in Fig. 7, the VOCs waste gas processing method of the present embodiment 8 is as follows:
1, waste gas VOCs exhaust gas source 5 produced is introduced in paint mist treatment device 1 by blower fan 3 and is carried out paint mist treatment, and the waste residue obtained after paint mist treatment reclaims by waste residue gathering-device 6;
2, the waste gas after paint mist treatment enters in organic matter treating apparatus 2 under the effect of blower fan 3, after the adsorption treatment of organic matter treating apparatus 2, a large amount of VOCs contained in waste gas are removed, the organic solvent collected by suction type is reclaimed by organic solvent collecting device 7, and described organic solvent collecting device 7 can be separated from solvent groove, solvent tank or solvent equipment for purifying;
In organic matter processing procedure, because the temperature of adsorption tanks after desorption completes in tank is higher, need cooling in time, and there is water vapour, water vapour enters VOCs exhaust gas source 5 will affect its working environment, and it is unfavorable to cause, therefore need in the cooling and dehumidifying passage of adsorption tanks, to pass into fresh air by the second blower fan 10, cool adsorption tanks and take away the water vapour in adsorption tanks, the gas after cooling and dehumidifying, directly discharged in the air, is not back in VOCs exhaust gas source 5.
3, the VOCs of the tail gas after organic matter process only containing trace, compared with the waste gas produced with VOCs exhaust gas source, VOCs content contained in this tail gas can be ignored, can be considered fresh air, after the adjustment of air quality adjusting device 9, under the effect of blower fan 3, return to VOCs exhaust gas source 5 reuse.
Also there is waste gas in Fig. 7 embodiment no longer draws to air compensating device direct time through organic matter treating apparatus after paint mist treatment device, and can promote treatment effeciency like this, be also a kind of process approach.
In sum, the VOCs exhaust treatment system that the utility model provides and processing method, not only achieve the zero-emission of VOCs waste gas, completely eliminate the exhaust emission of VOCs waste gas to environment, meet modern enterprise to energy-saving and emission-reduction, the requirement improving productivity effect, and the VOCs exhaust-gas treatment be applicable under different situations, better exhaust-gas treatment effect can be obtained, improve the operation stability of whole system and meet the job requirement of different VOCs exhaust gas source, possessing market application foreground widely.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (9)
1. a VOCs emission-control equipment, comprise VOCs exhaust gas source, for removing the organic matter treating apparatus of VOCs, blower fan, and tail gas recycle pipeline, it is characterized in that: described organic matter treating apparatus is connected successively with tail gas recycle pipeline, the inlet end of described organic matter treating apparatus is connected with the Waste gas outlet pipeline of VOCs exhaust gas source, the outlet side of described tail gas recycle pipeline is connected with the FAI Fresh Air Intake end pipeline of VOCs exhaust gas source, described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop, described blower fan is arranged on described closed loop, described organic matter treating apparatus is also connected with organic solvent collecting device pipeline.
2. a kind of VOCs emission-control equipment according to claim 1, it is characterized in that: on the loop of described blower fan between VOCs exhaust gas source Waste gas outlet and organic matter treating apparatus inlet end, described tail gas recycle pipeline is provided with air compensating device, described air compensating device by passing in closed loop or discharge air, with alleviate or eliminate exist in whole loop cause the problem of changes in air volume because of negative pressure or malleation.
3. a kind of VOCs emission-control equipment according to claim 2, it is characterized in that: between described air compensating device and VOCs exhaust gas source, be also provided with air quality adjusting device, described air quality adjusting device comprises air temperature modification unit and/or air humidity regulon, thus carries out adjustment according to VOCs exhaust gas source to the specific requirement of air quality and select.
4. a kind of VOCs emission-control equipment according to claim 2, it is characterized in that: between described VOCs exhaust gas source Waste gas outlet and fan air inlet, be also provided with a paint mist treatment device, described paint mist treatment device carries out the Transformatin of coating cloud, dust, mist of oil, aerosol to VOCs waste gas, and is reclaimed by the waste residue gathering-device be connected with its pipeline by the waste residue obtained after process.
5. a kind of VOCs emission-control equipment according to claim 2, is characterized in that: be also disposed with a filter and a cooling device between described VOCs exhaust gas source Waste gas outlet and fan air inlet.
6. a kind of VOCs emission-control equipment according to Claims 2 or 3 or 4, it is characterized in that: described organic matter treating apparatus is the device adopting absorption absorption method, this device comprises adsorption tanks, described adsorption tanks offer cooling and dehumidifying passage, one end of described cooling and dehumidifying passage is connected with the second blower fan, and the other end of described cooling and dehumidifying passage is connected with the external world.
7. a kind of VOCs emission-control equipment according to claim 5, is characterized in that: described fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline.
8. a kind of VOCs emission-control equipment according to claim 6, it is characterized in that: described fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline, is directly connected with next device after another road strides across organic matter treating apparatus.
9. a kind of VOCs emission-control equipment according to claim 1, is characterized in that: described organic solvent collecting device is separated from solvent groove, solvent tank or solvent equipment for purifying.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861359A (en) * | 2015-12-11 | 2017-06-20 | 上海沃凯生物技术有限公司 | The devices and methods therefor of effumability organic impurities in removal solvent or inorganic reagent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861359A (en) * | 2015-12-11 | 2017-06-20 | 上海沃凯生物技术有限公司 | The devices and methods therefor of effumability organic impurities in removal solvent or inorganic reagent |
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