CN217287854U - Concentrated condensation processing system of VOC waste gas - Google Patents
Concentrated condensation processing system of VOC waste gas Download PDFInfo
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- CN217287854U CN217287854U CN202220361778.5U CN202220361778U CN217287854U CN 217287854 U CN217287854 U CN 217287854U CN 202220361778 U CN202220361778 U CN 202220361778U CN 217287854 U CN217287854 U CN 217287854U
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Abstract
The utility model discloses a concentrated condensation processing system of VOC waste gas, including VOC waste gas collection device, spray absorbing device, adsorption equipment, exhaust fan and catalytic combustion device, spray absorbing device's export and adsorption equipment's first entry linkage, catalytic combustion device's export and adsorption equipment's second entry linkage and be used for providing the hot gas flow for adsorption equipment, adsorption equipment's first export and catalytic combustion device's entry linkage, adsorption equipment's second export and exhaust fan are connected. Through using adsorption equipment and catalytic combustion device cooperation, concentrate big amount of wind low concentration VOC waste gas into the organic waste gas of low discharge high concentration to connect concentrated VOC waste gas to catalytic combustion device and carry out oxidation treatment, finally change CO2 and H2O and discharge, compare with the processing system of current volatile organic waste gas, concentrated condensation processing system of VOC waste gas has higher treatment efficiency, and the processing procedure is more stable.
Description
Technical Field
The utility model relates to a waste gas treatment technical field especially relates to a concentrated condensation processing system of VOC waste gas.
Background
In China, VOCs volatile organic compounds refer to organic compounds with the saturated vapor pressure of more than 70.91Pa at normal temperature, the boiling point of below 50-260 ℃ at the standard atmospheric pressure of 101.3kPa and the initial boiling point of equal to 250 ℃, or any organic solid or liquid capable of volatilizing at normal temperature and normal pressure. With the rapid development of national economy in China, the pollution of the volatile organic waste gas discharged by industry to the atmosphere is getting more serious due to a plurality of factors such as large amount, complex components and the like.
The patent application No. 201721351980.5 discloses a volatile organic compound waste gas treatment system, which comprises: the device comprises a waste gas collecting unit, a spraying unit, a UV photo-oxidation unit, a centrifugal fan and an exhaust funnel; the waste gas collecting unit is communicated with the spraying absorption unit through a pipeline, and waste gas from the reaction area is collected in the waste gas collecting unit and is transmitted to the spraying absorption unit; the spraying absorption unit is communicated with the UV photooxidation unit through a pipeline, water-soluble components, particles and water mist in the waste gas are removed by the spraying absorption unit, and the insoluble waste gas only containing insoluble organic components is transmitted to the UV photooxidation unit; the UV photo-oxidation unit explains the insoluble organic components, and the obtained clean air is conveyed into an exhaust funnel through a centrifugal fan and conveyed to high altitude through the exhaust funnel and discharged.
Because the factor that UV light oxygen catalytic treatment effect influences is more, mainly there is the selection of exhaust gas concentration, relative humidity, wind speed and absolute humidity difference and light source, and among the processing system of above-mentioned volatile organic waste gas, it is direct with UV light oxidation unit intercommunication through the pipeline to spray the absorption unit, and the exhaust gas humidity that leads to getting into UV light oxidation unit is great, can influence the photolysis efficiency of UV light oxidation unit to it is unsatisfactory to lead to the treatment effect of quick-witted waste gas.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a concentrated condensation processing system of VOC waste gas, the processing system who solves the volatile organic waste gas among the prior art uses the indissolvable organic component in the indissolvable waste gas of UV light oxidation unit degradation, because the factor that UV light oxygen catalytic treatment effect influences is more, can influence the photodissociation efficiency of UV light oxidation unit to lead to the unsatisfactory technical problem of treatment effect of quick-witted waste gas.
In order to achieve the technical purpose, the technical proposal of the utility model provides a VOC waste gas concentration and condensation treatment system, which comprises a VOC waste gas collecting device, a spraying and absorbing device, an adsorption device, an exhaust fan and a catalytic combustion device, wherein,
the inlet of the VOC waste gas collecting device is used for introducing VOC waste gas, and the outlet of the VOC waste gas collecting device is connected with the inlet of the spray absorption device, so that the spray absorption device can remove water-soluble components, particles and water mist in the VOC waste gas;
the outlet of the spraying absorption device is connected with the first inlet of the adsorption device, the outlet of the catalytic combustion device is connected with the second inlet of the adsorption device and used for providing hot air for the adsorption device, the first outlet of the adsorption device is connected with the inlet of the catalytic combustion device, and the second outlet of the adsorption device is connected with the exhaust fan.
Furthermore, a dry type filtering device is connected in series between the spraying absorption device and the adsorption device through a pipeline and is used for filtering paint mist in the VOC waste gas.
Furthermore, adsorption equipment includes a plurality of parallelly connected adsorption tanks, the air inlet has been seted up to the bottom of adsorption tank, and the gas vent has been seted up at the top, the air inlet pass through the pipeline with dry-type filter equipment connects, the gas vent pass through the pipeline with the exhaust fan is connected.
Further, the adsorption tank is an activated carbon adsorption tank.
Further, the catalytic combustion apparatus includes:
the top of the catalytic combustion main body is provided with a waste gas inlet, and the bottom of the catalytic combustion main body is provided with a flue gas outlet;
the top of the adsorption box is provided with a waste gas outlet which is communicated with the waste gas inlet through the waste gas inlet pipe;
the hot flue gas delivery pipe, the flue gas inlet has been seted up to the bottom of adsorption tank, the flue gas inlet passes through hot flue gas delivery pipe with the exhanst gas outlet intercommunication.
Furthermore, the waste gas inlet pipe and the hot flue gas discharge pipe are communicated with an air inlet pipe for supplementing cold air.
Furthermore, a flame arrester is further installed on the waste gas inlet pipe.
Further, a desorption fan is further installed on the hot flue gas discharge pipe.
Further, concentrated condensation processing system of VOC waste gas still includes nitrogen gas generating device, nitrogen gas import has been seted up to the bottom of adsorption tank, nitrogen gas generating device pass through the pipeline with nitrogen gas import intercommunication.
Furthermore, a plurality of buffer tanks are connected in series between the nitrogen generating device and the nitrogen inlet.
Compared with the prior art, the beneficial effects of the utility model include:
the concentrated condensation processing system of VOC waste gas is through will adsorption equipment with catalytic combustion device cooperation is used, concentrates the VOC waste gas of big wind low concentration into the organic waste gas of low discharge high concentration to carry out oxidation treatment on being connected to catalytic combustion device with concentrated high concentration VOC waste gas, finally change CO2 and H2O and discharge into, compare with current volatile organic waste gas's processing system, the concentrated condensation processing system of VOC waste gas has higher treatment effeciency, and the processing procedure is more stable.
Drawings
Fig. 1 is a schematic structural diagram of a VOC waste gas concentration and condensation treatment system provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a VOC waste gas concentration condensation processing system, the structure of which is shown in figure 1, comprising a VOC waste gas collecting device 1, a spray absorbing device 2, an adsorption device 3, an exhaust fan 4 and a catalytic combustion device 5, wherein, the inlet of the VOC waste gas collecting device is used for introducing VOC waste gas, the outlet of the VOC waste gas collecting device is connected with the inlet of the spray absorbing device, so that the spray absorbing device can remove water-soluble components, particles and water mist in the VOC waste gas;
the outlet of the spraying absorption device is connected with the first inlet of the adsorption device, the outlet of the catalytic combustion device is connected with the second inlet of the adsorption device and used for providing hot air flow for the adsorption device, the first outlet of the adsorption device is connected with the inlet of the catalytic combustion device, and the second outlet of the adsorption device is connected with the exhaust fan; adsorption equipment 3 can carry out the desorption to the organic matter to form concentrated organic waste gas in desorption process, concentrated organic waste gas is sent into carry out the burning decomposition behind the catalytic combustion device 5, at last the warp exhaust fan 4 discharges.
The concentrated condensation processing system of VOC waste gas is through will adsorption equipment 3 with catalytic combustion device 5 cooperation is used, concentrates the high-concentration VOC waste gas of big wind volume low concentration into the high-concentration organic waste gas of low flux to be connected to catalytic combustion device 5 with concentrated high concentration VOC waste gas and carry out oxidation treatment, finally change CO2 and H2O and discharge into, compare with current volatile organic waste gas's processing system, the concentrated condensation processing system of VOC waste gas has higher treatment effeciency, and the processing procedure is more stable.
In a preferred embodiment, a dry filtering device 6 is further connected in series between the spray absorption device 2 and the adsorption device 3 through a pipeline for filtering paint mist in the VOC exhaust gas.
As a preferred embodiment, the adsorption device 3 includes a plurality of adsorption tanks 30 connected in parallel, an air inlet is formed at the bottom of each adsorption tank 30, an air outlet is formed at the top of each adsorption tank 30, the air inlet is connected with the dry filter device 6 through a pipeline, and the air outlet is connected with the exhaust fan 4 through a pipeline. In a preferred embodiment, the adsorption tank 30 is an activated carbon adsorption tank.
As a preferred embodiment, the catalytic combustion device 5 comprises a catalytic combustion main body 51, a waste gas inlet pipe 52 and a hot flue gas discharge pipe 53, wherein the top of the catalytic combustion main body 51 is provided with a waste gas inlet, and the bottom is provided with a flue gas outlet; the top of the adsorption tank 30 is provided with a waste gas outlet, and the waste gas outlet is communicated with the waste gas inlet through the waste gas inlet pipe 52; the bottom of the adsorption box 30 is provided with a flue gas inlet which is communicated with the flue gas outlet through the hot flue gas discharge pipe 53.
In a preferred embodiment, the exhaust gas inlet pipe 52 and the hot flue gas outlet pipe 53 are both connected to an air inlet pipe 54 for supplying cold air, which is used for cooling the catalytic combustion main body 51 and the adsorption tank 30.
In a preferred embodiment, a flame arrester 55 is further installed on the exhaust gas inlet pipe 52 to prevent a flame or a spark in the catalytic combustion device 5 from entering the adsorption box 30 to cause an accident.
In a preferred embodiment, a desorption fan 56 is further installed on the hot flue gas discharge pipe 53 to perform a flow-guiding and air-exhausting function.
As a preferred embodiment, the VOC waste gas concentration and condensation processing system further comprises a nitrogen gas generation device 7, a nitrogen gas inlet is opened at the bottom of the adsorption tank 30, and the nitrogen gas generation device 7 is communicated with the nitrogen gas inlet through a pipeline. In the desorption process, when the carbon layer of the adsorption tank 30 is detected to be over-high in temperature and the cold air supply is ineffective, the nitrogen generation device 7 can be opened for filling nitrogen to extinguish fire. In other embodiments, a temperature measuring element may be installed on the adsorption tank 30 for detecting the temperature of the carbon layer of the adsorption tank 30, and the nitrogen generator 7 may be controlled by a PLC program according to the temperature detected by the temperature measuring element; or an electric control valve is arranged on the pipeline, and the opening or closing of the electric control valve is controlled by a PLC program so as to control the on-off of the nitrogen in the pipeline.
In a preferred embodiment, a plurality of buffer tanks 8 are connected in series between the nitrogen generating device 7 and the nitrogen inlet and are used for buffering the pressure fluctuation of the nitrogen in the pipeline.
As a preferred embodiment, the spray absorption device 2 further comprises a water supply device 9 and a sewage collection device 10, and the spray absorption device 2 is communicated with the water supply device 9 and the sewage collection device 10 through pipelines. And the spraying and absorbing device 2 is also provided with a heat tracing device 11 for heating the water in the spraying and absorbing device 2 so as to accelerate the absorption of the water-soluble components in the VOC waste gas.
For convenience of understanding of the present invention, the following detailed description is made of the working principle of the present solution with reference to fig. 1:
after being collected by the VOC waste gas collection device 1, the VOC waste gas enters the spray absorption device 2 through a pipeline to remove water-soluble components, particles and water mist in the VOC waste gas, then enters the dry filter device 6 through a pipeline to filter paint mist in the VOC waste gas, and then enters the adsorption tanks 30 which are arranged side by side through pipelines to adsorb the VOC waste gas; the hot air current that catalytic combustion main part 51 produced is right adsorption tank 30 carries out the desorption, desorbs the organic matter from the active carbon, and in desorption process, the VOC waste gas of big wind-quantity low concentration is concentrated into the VOC waste gas of low discharge high concentration, and concentrated VOC waste gas passes through waste gas advances pipe 52 and gets into carry out the high temperature in the catalytic combustion main part 51 and blow off the burning, finally change into CO2 and H2O through exhaust fan 4 drainage discharges to the atmosphere.
The utility model provides a pair of concentrated condensation processing system of VOC waste gas has following beneficial effect:
(1) the VOC waste gas concentration and condensation treatment system is characterized in that the adsorption device 3 and the catalytic combustion device 5 are matched for use, VOC waste gas with large air quantity and low concentration is concentrated into organic waste gas with small flow and high concentration, the concentrated VOC waste gas with high concentration is connected to the catalytic combustion device 5 for oxidation treatment, and finally the concentrated VOC waste gas is converted into CO2 and H2O to be discharged;
(2) the VOC waste gas concentration condensation treatment system further comprises a nitrogen generation device 7, a nitrogen inlet is formed in the bottom of the adsorption tank 30, and the nitrogen generation device 7 is communicated with the nitrogen inlet through a pipeline. In the desorption process, when the carbon layer of the adsorption box 30 is detected to be over-high in temperature and the cold air supply is invalid, the nitrogen generation device 7 can be started for filling nitrogen to extinguish fire;
(3) and the spraying and absorbing device 2 is also provided with a heat tracing device 11 for heating the water in the spraying and absorbing device 2 so as to accelerate the absorption of the water-soluble components in the VOC waste gas.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A VOC waste gas concentration and condensation treatment system is characterized by comprising a VOC waste gas collecting device, a spraying and absorbing device, an adsorption device, an exhaust fan and a catalytic combustion device, wherein,
the inlet of the VOC waste gas collecting device is used for introducing VOC waste gas, and the outlet of the VOC waste gas collecting device is connected with the inlet of the spraying and absorbing device, so that the spraying and absorbing device can remove water-soluble components, particulate matters and water mist in the VOC waste gas;
the outlet of the spraying absorption device is connected with the first inlet of the adsorption device, the outlet of the catalytic combustion device is connected with the second inlet of the adsorption device and used for providing hot air for the adsorption device, the first outlet of the adsorption device is connected with the inlet of the catalytic combustion device, and the second outlet of the adsorption device is connected with the exhaust fan.
2. A VOC exhaust gas concentration and condensation processing system according to claim 1, wherein a dry type filtering device is further connected in series between the spray absorbing device and the adsorption device through a pipeline for filtering paint mist in the VOC exhaust gas.
3. A VOC exhaust gas concentrating and condensing treatment system according to claim 2, wherein the adsorption device comprises a plurality of adsorption tanks connected in parallel, the adsorption tanks are provided with air inlets at the bottom and air outlets at the top, the air inlets are connected with the dry type filtering device through pipelines, and the air outlets are connected with the exhaust fan through pipelines.
4. A VOC exhaust gas concentration and condensation treatment system according to claim 3 wherein the adsorption tank is an activated carbon adsorption tank.
5. A VOC exhaust gas concentrating and condensing treatment system according to claim 3 wherein the catalytic combustion device comprises:
the top of the catalytic combustion main body is provided with a waste gas inlet, and the bottom of the catalytic combustion main body is provided with a flue gas outlet;
the top of the adsorption box is provided with a waste gas outlet which is communicated with the waste gas inlet through the waste gas inlet pipe;
the hot flue gas delivery pipe, the flue gas inlet has been seted up to the bottom of adsorption tank, the flue gas inlet passes through hot flue gas delivery pipe with the exhanst gas outlet intercommunication.
6. A VOC waste gas concentrating and condensing treatment system as claimed in claim 5, wherein said waste gas inlet pipe and said hot flue gas discharging pipe are both connected with an air inlet pipe for supplementing cold air.
7. A VOC waste gas concentrating and condensing treatment system as claimed in claim 5, wherein a flame arrester is further installed on the waste gas inlet pipe.
8. A VOC waste gas concentration and condensation treatment system as claimed in claim 5, wherein a desorption fan is further installed on the hot flue gas discharge pipe.
9. The concentrated condensation processing system of VOC waste gas of claim 3, further comprising a nitrogen generator, wherein the bottom of said adsorption tank is opened with a nitrogen inlet, and said nitrogen generator is communicated with said nitrogen inlet through a pipeline.
10. A VOC exhaust gas concentrating and condensing treatment system according to claim 9 wherein there are buffer tanks connected in series between the nitrogen generating device and the nitrogen inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220361778.5U CN217287854U (en) | 2022-02-22 | 2022-02-22 | Concentrated condensation processing system of VOC waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220361778.5U CN217287854U (en) | 2022-02-22 | 2022-02-22 | Concentrated condensation processing system of VOC waste gas |
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| CN217287854U true CN217287854U (en) | 2022-08-26 |
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| CN202220361778.5U Active CN217287854U (en) | 2022-02-22 | 2022-02-22 | Concentrated condensation processing system of VOC waste gas |
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