CN210729105U - Volatile organic waste gas purification system - Google Patents
Volatile organic waste gas purification system Download PDFInfo
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- CN210729105U CN210729105U CN201920711675.5U CN201920711675U CN210729105U CN 210729105 U CN210729105 U CN 210729105U CN 201920711675 U CN201920711675 U CN 201920711675U CN 210729105 U CN210729105 U CN 210729105U
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Abstract
The utility model discloses a volatile organic waste gas purification system, including the volatile organic waste gas purification system, including having the casing in the chamber of ventilating, the both ends of casing are respectively with ventilate air inlet and the gas outlet of chamber intercommunication, the intracavity of ventilating between air inlet and the gas outlet has set gradually first absorption unit, photolysis unit and second and has adsorbed the unit, first absorption unit and second adsorb the unit and all include the active carbon adsorption component of at least a set of swing joint in the intracavity of ventilating, the photolysis unit includes at least a set of high energy ultraviolet photolysis device, the intracavity of ventilating between air inlet and the first absorption unit is provided with organic solvent absorption unit. The utility model discloses both had the active adsorption function, had the function of absorbing the degasification again, but also had photodissociation purifying function, fully guaranteed the purifying effect to organic waste gas, the effectual purifying performance who promotes traditional equipment.
Description
Technical Field
The utility model relates to a waste gas treatment equipment technical field especially indicates volatile organic waste gas purification system.
Background
Volatile Organic Compounds (VOCs) are a generic term for any Organic compound having a boiling point below 250 ℃ at atmospheric pressure, or any Organic compound having a saturated vapor pressure exceeding 133.32Pa at room temperature (25 ℃) and being emitted as gaseous molecules into the air. VOCs not only have strong toxicity, but also are important precursors and participators which influence the atmospheric composite pollution in China. Therefore, the control of the VOCs has important significance for improving the quality of the atmospheric environment in China.
The prior art processes for treating exhaust gas containing volatile organic compounds include: active adsorption method, induced air high-altitude discharge method, combustion processing method, absorption degassing method, condensation collection method and biological processing method.
In the organic waste gas treatment process, an active adsorption method is one of the methods with good treatment effect and wider application range, and the adsorbents comprise active carbon, diatomite, zeolite and the like, wherein the active carbon adsorption is most applied. Through adsorption system, not only can make VOCs concentration greatly reduced, realize that waste gas discharge to reach standard, adsorb the back moreover through the stripping desorption, the collection can be used for production again, but has the absorption incomplete, remain shortcoming such as more.
The induced air high-altitude discharge method is one of the most convenient methods used by general enterprises in the post of paint filling, sanding and the like, and has the advantages of low cost, easy operation and obvious effect. However, the high-altitude discharge is only pollution transfer, the pollution problem is not really solved, and the power of the induced draft fan and the installation height of the air inlet directly influence the induced draft effect.
The combustion treatment method is adopted because VOCs are organic volatile substances and are easy to combust, normal temperature or catalytic oxidation combustion treatment can be adopted, organic waste gas is introduced into a boiler or an incinerator for combustion through an induced air pipeline, but safety testimony is carried out on high-temperature organic waste gas.
As the VOCs are generally dissolved in organic solvents such as diesel oil or 200 # gasoline, the VOCs can be absorbed by the diesel oil or 200 # gasoline, and the absorbed solvents can be used for fuel or diluents. The method is convenient to operate and low in cost, but volatile gas residues generally exist after absorption treatment, and the organic solvent is volatile, so that VOCs cannot be reduced to zero, and the absorptivity is lower when the organic solvent meets high temperature.
The high-temperature organic gas in the reaction kettle can be collected by condensation, and is firstly directly condensed and then spirally condensed, so that the method has the advantages of obvious degassing effect, easy operation and low operation cost, but has poor effect on low-boiling-point gas.
The biological treatment method is to absorb VOCs by water or weak alkali liquor, wherein the substances such as alcohols, aldehydes and the like contained in the VOCs are easy to dissolve in water, and the absorbed waste water is biodegraded to ensure that the waste water reaches the standard and is discharged. The biological treatment method is that the greening area is increased in a plant area, and the air is purified by absorbing and converting pollutants in the atmosphere by using green plants, and the method is only suitable for large-environment low-concentration pollution.
SUMMERY OF THE UTILITY MODEL
To the not enough in the above-mentioned background art, the utility model provides a volatile organic waste gas purification system has solved current organic waste gas treatment technology application scope single, to the incomplete technical problem of volatile organic compound purification.
The technical scheme of the utility model is realized like this: volatile organic waste gas purification system, including having the casing in the chamber of ventilating, the both ends of casing are respectively and ventilate the air inlet and the gas outlet of chamber intercommunication, the intracavity of ventilating between air inlet and the gas outlet has set gradually first absorption unit, photolysis unit and second and has adsorbed the unit, first absorption unit and second adsorb the unit and all include the active carbon adsorption subassembly of at least a set of swing joint in the intracavity of ventilating, the photolysis unit includes at least a set of high energy ultraviolet photolysis device, the intracavity of ventilating between air inlet and the first absorption unit is provided with organic solvent absorption unit.
Furthermore, the organic solvent absorption unit comprises a solvent pool containing organic solvent, a solvent exchange tube connected with the outside of the shell is arranged at the bottom of the solvent pool, the ventilation cavity is divided into a front cavity and a rear cavity which are isolated by the solvent pool, the rear cavity is communicated with the solvent in the solvent pool, and an air guide tube inserted into the solvent pool is arranged in the front cavity.
Further, the casing includes interconnect's first casing and second casing, the air inlet is the outer port of first casing, and the longitudinal section area of first casing along the air inlet to the gas outlet direction is crescent, the second casing sets up to peg graft at least with the junction of first casing and has a set of filter pulp net subassembly.
Further, the filter cotton net component comprises a filter cotton net matched with the longitudinal sectional area of the ventilation cavity, a filter net sealing cover is arranged on one side of the filter cotton net, and a filter net replacing opening for the filter cotton net to penetrate is formed in one side of the first shell.
Furthermore, the second shell comprises a reducing section connected with the first shell, an expanding section is arranged behind the reducing section, and the solvent pool is arranged between the reducing section and the expanding section.
Further, the active carbon adsorption component comprises an active carbon adsorption net matched with the longitudinal sectional area of the ventilation cavity, an adsorption net sealing cover is arranged on one side of the active carbon adsorption net, and a drawing groove for the active carbon adsorption net to pass through is formed in one side of the shell.
Furthermore, the high-energy ultraviolet photolysis device comprises a row of ultraviolet lamps movably inserted in the shell, a titanium dioxide catalyst layer is coated on the ultraviolet lamps, the ultraviolet lamps are connected with an ultraviolet lamp sealing cover outside the shell, and a replacing opening for the ultraviolet lamps to penetrate is formed in the shell.
Further, the photolysis unit further comprises a plasma generation device of high-frequency high-voltage pulses, a replacement door for replacing the plasma generation device is arranged on the shell, and the plasma generation device is arranged between the high-energy ultraviolet photolysis device and the second adsorption unit.
The utility model discloses both had the active adsorption function, had the function of absorbing the degasification again, but also had photodissociation purifying function, fully guaranteed the purifying effect to organic waste gas, the effectual purifying performance who promotes traditional equipment. The utility model discloses set up and filter the cotton net, not only have and keep apart and filter bulky debris, but also have fire behavior. The high-energy ultraviolet light beam generated by the high-energy ultraviolet photolysis device can decompose oxygen molecules in the air to generate active ozone, and has instant clearing effect on malodorous gas and other pungent peculiar smells due to the extremely strong oxidation effect of the ozone on organic matters. Meanwhile, a titanium dioxide catalyst layer on the ultraviolet lamp generates superoxide anions and hydroxyl radicals with strong chemical activity when being irradiated by ultraviolet light, so that the effect of degrading organic matters is achieved, toxic and harmful substances in malodorous gas can be effectively decomposed, the effect of deodorization is achieved, the decomposed malodorous gas can be harmlessly discharged, secondary pollution is not generated, and the effect of efficient disinfection and sterilization is achieved. The utility model discloses not only be applicable to the purification treatment of the waste gas that sprays paint such as industrial smog, car, furniture, toy, household electrical appliances, bicycle, be applicable to the purification treatment of printing factory, all kinds of industry VOC class organic waste gas of shoemaking viscose, deodorization and remove the flavor moreover.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The housing 1 comprises a first housing 121 and a second housing 122 which are connected with each other, the air inlet 101 is an external port of the first housing 121, the longitudinal sectional area of the first housing 121 increases gradually along the direction from the air inlet 101 to the air outlet 102, and a group of filter cotton net assemblies 5 is arranged at the connection position of the second housing 122 and the first housing 121 in an inserting manner. The filtering cotton net component 5 comprises a filtering cotton net 501 matched with the longitudinal sectional area of the ventilation cavity, a filter net sealing cover 502 is arranged on one side of the filtering cotton net 501, and a filter net replacing opening for the filtering cotton net 501 to pass through is formed in one side of the first shell 121. The filtering cotton net 501 not only can isolate and filter large-volume sundries, but also has fireproof performance, and can be taken out from a filter net replacing opening for replacement after being used for one section.
The first adsorption unit comprises three groups of active carbon adsorption components 2 which are movably connected in the ventilation cavity, and the three groups of active carbon adsorption components 2 are sequentially arranged along the axial direction of the second shell 122. The activated carbon adsorption component 2 comprises an activated carbon adsorption net 201 matched with the longitudinal section area of the second shell 122, and an adsorption net sealing cover 202 is arranged on one side of the activated carbon adsorption net 201. A drawing groove for the activated carbon adsorption net 201 to pass through is formed in one side of the shell 1, and the activated carbon adsorption net 201 can be replaced through the drawing groove after being used for a period of time. The second adsorption unit comprises a group of the activated carbon adsorption components 2.
The photolysis unit comprises a high-energy ultraviolet photolysis device 3, the high-energy ultraviolet photolysis device 3 comprises a row of ultraviolet lamps 301 movably inserted in the shell 1, and a titanium dioxide catalyst layer is coated on the ultraviolet lamps 301. Ultraviolet lamp 301 is used for irradiating and removing organic (malodorous) waste gas, such as ammonia gas, trimethylamine, hydrogen sulfide, methyl mercaptan, carbon disulfide, and molecular chain structure of VOC organic off-flavor gas such as styrene, benzene, etc., so that the organic off-flavor gas can be degraded and converted into low molecular compounds, such as CO2、H2O, etc.; meanwhile, a titanium dioxide catalyst layer on the ultraviolet lamp generates superoxide anions and hydroxyl radicals with strong chemical activity when being irradiated by ultraviolet light, so that the function of degrading organic matters is achieved, and malodorous gas can be effectively decomposedThe decomposed malodorous gas can achieve harmless emission, does not produce secondary pollution and simultaneously achieves the effects of high-efficiency disinfection and sterilization.
The ultraviolet lamp 301 is connected with an ultraviolet lamp sealing cover 302 outside the shell 1, a replacing opening for the ultraviolet lamp 301 to pass through is formed in the shell 1, and after the ultraviolet lamp 301 reaches the service life or is polluted, the ultraviolet lamp can be cleaned and replaced through the replacing opening. The photolysis unit further comprises a plasma generation device 6 for high-frequency high-voltage pulse, and the second housing 122 is provided with a replacement door 601 for replacing the plasma generation device 6. The plasma generating device 6 is arranged between the high-energy ultraviolet photolysis device 3 and the second adsorption unit, and can further degrade pollutants.
The organic solvent absorption unit comprises a solvent pool 4 containing organic solvent, the bottom of the solvent pool 4 is provided with a solvent exchange tube 401 connected with the outside of the shell 1, and the solvent exchange tube 401 can conveniently replace the organic solvent in the solvent pool 4. The solvent pool 4 divides the ventilation cavity into a front cavity 111 and a rear cavity 112 which are separated, the rear cavity 111 is communicated with the solvent in the solvent pool 4, and an air guide pipe 402 inserted into the solvent pool 4 is arranged in the front cavity 111. The interior organic waste gas that treats of front chamber can pass through air duct 402 and get into solvent pond 4 in, organic waste gas is discharged to back chamber 111 after organic solvent's purification, then can pass through the hierarchical purification of first adsorption element, photolysis unit and second adsorption element in proper order.
The other structure of this embodiment is the same as embodiment 1.
The present invention is not exhaustive and is well known to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a volatile organic waste gas purification system, is including having casing (1) of ventilating the chamber, and the both ends of casing (1) are respectively air inlet (101) and gas outlet (102) with ventilate the chamber intercommunication, the intracavity of ventilating between air inlet (101) and gas outlet (102) has set gradually first absorption unit, photodissociation unit and second absorption unit, its characterized in that: first adsorption unit and second adsorption unit all include active carbon adsorption component (2) of at least a set of swing joint in the intracavity of ventilating, the photolysis unit includes at least a set of high energy ultraviolet photolysis device (3), be provided with organic solvent absorption unit in the intracavity of ventilating between air inlet (101) and the first adsorption unit.
2. The voc emission purification system according to claim 1, wherein: the organic solvent absorption unit comprises a solvent pool (4) filled with an organic solvent, a solvent exchange tube (401) connected with the outside of the shell (1) is arranged at the bottom of the solvent pool (4), the solvent pool (4) divides the ventilation cavity into a front cavity (111) and a rear cavity (112) which are isolated, the rear cavity (112) is communicated with the solvent in the solvent pool (4), and an air guide tube (402) inserted into the solvent pool (4) is arranged in the front cavity (111).
3. The voc emission purification system according to claim 2, wherein: the shell (1) comprises a first shell (121) and a second shell (122) which are connected with each other, the air inlet (101) is an outer port of the first shell (121), the longitudinal sectional area of the first shell (121) along the direction from the air inlet (101) to the air outlet (102) is gradually increased, and at least one group of filter cotton net components (5) is arranged at the joint of the second shell (122) and the first shell (121) in an inserted mode.
4. The voc exhaust purification system according to claim 3, wherein: the filter cotton net component (5) comprises a filter cotton net (501) matched with the longitudinal sectional area of the ventilation cavity, a filter screen sealing cover (502) is arranged on one side of the filter cotton net (501), and a filter screen replacing opening for the filter cotton net (501) to pass through is formed in one side of the first shell (121).
5. The voc exhaust purification system according to claim 4, wherein: the second shell (122) comprises a reducing section (131) connected with the first shell (121), an expanding section (132) is arranged behind the reducing section (131), and the solvent pool (4) is arranged between the reducing section (131) and the expanding section (132).
6. The voc emission purification system according to any one of claims 1 to 5, wherein: the active carbon adsorption component (2) comprises an active carbon adsorption net (201) matched with the longitudinal sectional area of the ventilation cavity, an adsorption net sealing cover (202) is arranged on one side of the active carbon adsorption net (201), and a drawing groove for the active carbon adsorption net (201) to pass through is formed in one side of the shell (1).
7. The voc exhaust purification system according to claim 6, wherein: the high-energy ultraviolet photolysis device (3) comprises a row of ultraviolet lamps (301) movably inserted into the shell (1), a titanium dioxide catalyst layer is coated on the ultraviolet lamps (301), the ultraviolet lamps (301) are connected with an ultraviolet lamp sealing cover (302) outside the shell (1), and a replacing opening for the ultraviolet lamps (301) to penetrate is formed in the shell (1).
8. The voc emission purification system of claim 7, wherein: the photolysis unit further comprises a plasma generation device (6) with high-frequency high-voltage pulses, a replacement door (601) for replacing the plasma generation device (6) is arranged on the shell (1), and the plasma generation device (6) is arranged between the high-energy ultraviolet photolysis device (3) and the second adsorption unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711675.5U CN210729105U (en) | 2019-05-17 | 2019-05-17 | Volatile organic waste gas purification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711675.5U CN210729105U (en) | 2019-05-17 | 2019-05-17 | Volatile organic waste gas purification system |
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| CN210729105U true CN210729105U (en) | 2020-06-12 |
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| CN201920711675.5U Active CN210729105U (en) | 2019-05-17 | 2019-05-17 | Volatile organic waste gas purification system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112791561A (en) * | 2021-01-13 | 2021-05-14 | 贵州威顿晶磷电子材料股份有限公司 | Trimethyl phosphite rectification tail gas deodorization method and equipment |
| CN113975943A (en) * | 2021-11-04 | 2022-01-28 | 鄂尔多斯应用技术学院 | Method and device for treating and recycling volatile organic chemical waste gas |
| CN114307521A (en) * | 2022-01-04 | 2022-04-12 | 东莞市明轩环保科技有限公司 | Emergency treatment system and emergency treatment method for high-concentration VOCs waste gas |
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2019
- 2019-05-17 CN CN201920711675.5U patent/CN210729105U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112791561A (en) * | 2021-01-13 | 2021-05-14 | 贵州威顿晶磷电子材料股份有限公司 | Trimethyl phosphite rectification tail gas deodorization method and equipment |
| CN112791561B (en) * | 2021-01-13 | 2022-07-19 | 贵州威顿晶磷电子材料股份有限公司 | Trimethyl phosphite rectification tail gas deodorization method and equipment |
| CN113975943A (en) * | 2021-11-04 | 2022-01-28 | 鄂尔多斯应用技术学院 | Method and device for treating and recycling volatile organic chemical waste gas |
| CN114307521A (en) * | 2022-01-04 | 2022-04-12 | 东莞市明轩环保科技有限公司 | Emergency treatment system and emergency treatment method for high-concentration VOCs waste gas |
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