CN214972990U - Exhaust treatment device integrating photocatalysis and biological filter bed structure - Google Patents
Exhaust treatment device integrating photocatalysis and biological filter bed structure Download PDFInfo
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- CN214972990U CN214972990U CN202120568430.9U CN202120568430U CN214972990U CN 214972990 U CN214972990 U CN 214972990U CN 202120568430 U CN202120568430 U CN 202120568430U CN 214972990 U CN214972990 U CN 214972990U
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- Prior art keywords
- biological filter
- waste gas
- filter bed
- photocatalytic
- variable frequency
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 52
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 16
- 239000002912 waste gas Substances 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims abstract description 48
- 238000007599 discharging Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000011941 photocatalyst Substances 0.000 claims description 4
- 239000012855 volatile organic compound Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The utility model relates to a waste gas treatment device integrating photocatalysis and biological filter bed structure, belonging to the technical field of waste gas treatment; comprises a waste gas collecting device, a variable frequency fan, a biological filter bed, a photocatalytic device and an exhaust funnel; the waste gas collecting device is connected with a gas outlet of waste gas discharging equipment, a gas outlet of the waste gas collecting device is connected with a variable frequency fan, the variable frequency fan is provided with an automatic control system capable of adjusting the working frequency according to the waste gas flow in the waste gas collecting device, a gas outlet pipeline of the variable frequency fan is respectively communicated with the photocatalytic device and the biological filter bed through two gas branch pipelines, the two gas branch pipelines are respectively provided with an automatic control valve capable of being automatically opened and closed according to the frequency of the variable frequency fan, the photocatalytic device is arranged at the top of the biological filter bed, the gas outlets of the photocatalytic device and the biological filter bed are communicated with an exhaust funnel through pipelines, and the exhaust funnel is communicated with the external atmosphere; the problem that the VOCs treatment system can not be matched according to the emission amount is solved.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to exhaust-gas treatment device of integrated photocatalysis and biological filter structure.
Background
VOCs treatment in petrochemical industry, coal chemical industry and other industries relates to multiple aspects of process, technology, equipment, management, capital and the like, and has higher working difficulty. In the aspect of terminal treatment, because the characteristics of the waste gas discharged by enterprises are complex, a single method is difficult to effectively degrade, and particularly, the waste gas contains malodorous gas, such as: hydrogen sulfide, benzene, toluene, xylene and the like, wherein odor is one of the most difficult waste gases to treat in all industrial waste gases, has become one of the main causes of harm to human health at present, a large number of respiratory disease cases are generated in China every year, the root of the disease is the poison of the industrial waste gas, and the industrial waste gas has become the terror life killer in the 21 st century! Especially in many countries and regions where heavy industries are intensive. Therefore, the coupling between the conventional technologies and the improvement of the new technologies will be a development direction of the control of the VOCs. Under the background, a proper method is determined according to different characteristics of VOCs waste gas emission, and a good treatment effect can be obtained.
At present, because the discharge amount of the discharge source of the VOCs cannot be controlled, for the discharge source with unstable discharge amount, the VOCs treatment system cannot be matched according to the discharge amount, the condition that a trolley is pulled by a large horse may occur in the operation process, the operation cost is high, and resources are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a waste gas treatment device integrating photocatalysis and biological filter bed structure; the problem that the VOCs treatment system can not be matched according to the emission amount is solved.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A waste gas treatment device integrating photocatalysis and biological filter bed structure comprises a waste gas collecting device, a variable frequency fan, a biological filter bed, a photocatalysis device and an exhaust funnel; the waste gas collecting device is connected with a gas outlet of waste gas discharging equipment, a gas outlet of the waste gas collecting device is connected with a variable frequency fan, the variable frequency fan is provided with an automatic control system capable of adjusting the working frequency according to the waste gas flow in the waste gas collecting device, a gas outlet pipeline of the variable frequency fan is respectively communicated with the photocatalytic device and the biological filter bed through two gas branch pipelines, an automatic control valve capable of being automatically opened and closed according to the frequency of the variable frequency fan is respectively arranged on the two gas branch pipelines before entering the photocatalytic device and the biological filter bed, the photocatalytic device is arranged at the top of the biological filter bed, the gas outlets of the photocatalytic device and the biological filter bed are communicated with an exhaust funnel through pipelines, and the exhaust funnel is communicated with the external atmosphere.
Furthermore, the frequency conversion fan is also provided with a manual operation device which can manually adjust the frequency of the frequency conversion fan.
Furthermore, a ladder stand is arranged outside the biological filter bed.
Furthermore, a liquid absorption device and a biological treatment device are arranged in the biological filter bed.
Furthermore, an ultraviolet irradiation device and a photocatalyst are arranged in the photocatalytic device.
Furthermore, an activated carbon adsorption layer is arranged at the outlet of the photocatalytic device.
The utility model discloses produced beneficial effect for prior art does:
(1) because photocatalysis treatment technique and biological filter bed processing technique are applicable to different exhaust-gas treatment volume, the utility model provides a waste gas treatment device handles two kinds of techniques according to flow or pressure size rational distribution, makes the VOCs who contains foul smell administer technology more reasonable, reliable.
(2) The treatment process adopting the photocatalysis and biological filter bed integrated structure is taken into consideration from the energy-saving aspect, the automatic control valve and the variable frequency fan are arranged between the variable frequency fan and the photocatalysis or biological filter bed, and the aim of ensuring that the photocatalysis or biological filter bed treatment is adopted under the condition of waste gas flow fluctuation is realized, so that the resource waste is avoided, and the treatment process is energy-saving and environment-friendly.
(3) In consideration of the occupied area, the photocatalytic device is arranged at the top of the biological filter bed, so that the occupied area is saved, and the device investment is reduced.
(4) From the perspective of application range and treatment efficiency, the two treatment technologies are combined for use due to the advantages and disadvantages of the two technologies, so that high waste gas treatment efficiency can be ensured.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the whole of the present invention;
wherein, 1 is a waste gas collecting device, 2 is a variable frequency fan, 3 is an automatic control valve, 4 is a photocatalysis device, 5 is a biological filter bed, and 6 is an exhaust funnel.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. 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 technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in figure 1, the utility model provides an integrated photocatalysis and biological filter bed structure's exhaust treatment device, including exhaust gas collection device 1, frequency conversion fan 2, biological filter bed 5, photocatalytic device 4, aiutage 6.
The waste gas collecting device 1 is connected with the gas outlet of the waste gas discharging equipment and used for collecting the waste gas containing VOCs discharged from the waste gas discharging equipment, and the gas outlet of the waste gas collecting device 1 is connected with the variable frequency fan 2.
The frequency conversion fan 2 is provided with an automatic control system which can adjust the working frequency according to the waste gas flow in the waste gas collecting device 1, the working frequency of the frequency conversion fan 2 can be adjusted according to the pressure of the odorous VOCs waste gas collected by the waste gas collecting device 1 after entering the system, the purpose is that the frequency of the frequency conversion fan 2 is matched with the pressure of the waste gas collecting device 1 in an interlocking manner, and when the low-flow discharge is avoided, the frequency conversion fan 2 runs at high power, so that the resource waste is caused.
The frequency conversion fan 2 is also provided with a manual operation device, and the working frequency of the frequency conversion fan 2 can be manually adjusted.
The gas outlet pipeline of the variable frequency fan 2 is respectively communicated with the photocatalytic device 4 and the biological filter bed 5 through two gas branch pipelines, the two gas branch pipelines before entering the photocatalytic device 4 and the biological filter bed 5 are respectively provided with an automatic control valve 3, and the automatic control valves 3 can adjust the opening and closing of each automatic control valve 3 according to the frequency of the variable frequency fan 2.
The photocatalytic device 4 is arranged at the top of the biological filter bed 5, a ladder stand is arranged outside the biological filter bed 5, and maintenance operation can be carried out on the ladder stand of the biological filter bed 5 to the top of the platform during maintenance.
The gas outlets of the photocatalytic device 4 and the biological filter bed 5 are communicated with an exhaust funnel 6 through pipelines, and the treated purified gas is exhausted into the atmosphere through the exhaust funnel 6.
The utility model discloses a theory of operation does:
waste gas collection device 1 collects the waste gas that contains VOCs who discharges out among the exhaust emission equipment, carries to frequency conversion fan 2 through its gas outlet after collecting.
The variable frequency fan 2 is interlocked and matched with the pressure of the waste gas collecting device 1, and when the waste gas flow in the waste gas collecting device 1 is larger and the pressure is larger, the frequency of the variable frequency fan 2 is automatically increased, so that the variable frequency fan 2 runs at high power; when the waste gas flow in the waste gas collecting device 1 is small and the pressure is small, the frequency of the variable frequency fan 2 is automatically reduced, so that the variable frequency fan 2 runs at low power.
When the automatic control system between the waste gas collecting device 1 and the variable frequency fan 2 breaks down, the working frequency of the variable frequency fan 2 is manually adjusted by operating a manual operation device of the variable frequency fan 2.
And automatic control valves 3 on gas branch pipelines for connecting the photocatalytic device 4 and the biological filter bed 5 are used for adjusting the opening and closing of each automatic control valve 3 according to the frequency of the variable frequency fan 2 so as to select the waste gas to enter one of the photocatalytic device 4 or the biological filter bed 5 for treatment.
A liquid absorption device and a biological treatment device are arranged in the biological filter bed 5.
An ultraviolet irradiation device and a photocatalyst are arranged in the photocatalytic device 4. And an outlet of the photocatalytic device 4 is provided with an activated carbon adsorption layer.
When the power of the variable frequency fan 2 is larger, the automatic control valve 3 on the gas branch pipeline for connecting the biological filter bed 5 is opened, the automatic control valve 3 on the gas branch pipeline for connecting the photocatalytic device 4 is closed, the waste gas enters the biological filter bed 5 after passing through the variable frequency fan 2, VOCs waste gas passes through the biological filter bed 5, the deodorization process of the biological filter bed 5 adopts the combined action of liquid absorption and biological treatment, the odor is firstly selectively absorbed by liquid (absorbent) to form mixed sewage, and then pollutants in the mixed sewage are degraded under the action of microorganisms. The purified gas passes through the exhaust funnel 6 and is finally discharged into the atmosphere.
When the power of the variable frequency fan 2 is smaller, the automatic control valve 3 on the gas branch pipeline for connecting the biological filter bed 5 is closed, the automatic control valve 3 on the gas branch pipeline for connecting the photocatalytic device 4 is opened, the waste gas enters the photocatalytic device 4 after passing through the variable frequency fan 2, VOCs waste gas passes through the photocatalytic device 4, ultraviolet rays and a photocatalyst are utilized to generate free radicals with extremely strong activity in a reaction system, the pollutants are completely degraded into inorganic matters through the processes of addition, substitution, electron transfer and the like between the free radicals and organic VOCs pollutants, and an activated carbon adsorption layer is arranged at the outlet of the photocatalytic device 4 for further adsorption treatment. The purified gas passes through the exhaust funnel 6 and is finally discharged into the atmosphere.
Because photocatalysis treatment technique and biological filter bed processing technique are applicable to different exhaust-gas treatment volume, through utilizing the exhaust treatment device that this application provided, can handle according to flow or pressure size rational distribution, make the VOCs waste gas treatment device that contains the foul gas more reasonable, reliable.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an integrated photocatalysis and biological filter structure's exhaust treatment device which characterized in that: comprises a waste gas collecting device (1), a variable frequency fan (2), a biological filter bed (5), a photocatalysis device (4) and an exhaust funnel (6); the waste gas collecting device (1) is connected with a gas outlet of waste gas discharging equipment, a gas outlet of the waste gas collecting device (1) is connected with a variable frequency fan (2), the variable frequency fan (2) is provided with an automatic control system capable of adjusting the working frequency according to the waste gas flow in the waste gas collecting device (1), a gas outlet pipeline of the variable frequency fan (2) is respectively communicated with a photocatalytic device (4) and a biological filter bed (5) through two gas branch pipelines, the two gas branch pipelines before entering the photocatalytic device (4) and the biological filter bed (5) are respectively provided with an automatic control valve (3) capable of automatically opening and closing according to the frequency of the variable frequency fan (2), the photocatalytic device (4) is arranged at the top of the biological filter bed (5), the gas outlets of the photocatalytic device (4) and the biological filter bed (5) are communicated with an exhaust funnel (6) through pipelines, the exhaust funnel (6) is communicated with the outside atmosphere.
2. The integrated photocatalytic and biofiltration bed structure exhaust gas treatment device as set forth in claim 1, wherein: the variable frequency fan (2) is also provided with a manual operation device which can manually adjust the frequency of the variable frequency fan (2).
3. The integrated photocatalytic and biofiltration bed structure exhaust gas treatment device as set forth in claim 1, wherein: a ladder stand is arranged outside the biological filter bed (5).
4. The integrated photocatalytic and biofiltration bed structure exhaust gas treatment device as set forth in claim 1, wherein: a liquid absorption device and a biological treatment device are arranged in the biological filter bed (5).
5. The integrated photocatalytic and biofiltration bed structure exhaust gas treatment device as set forth in claim 1, wherein: and an ultraviolet irradiation device and a photocatalyst are arranged in the photocatalytic device (4).
6. The integrated photocatalytic and biofiltration bed structure exhaust gas treatment device as set forth in claim 1, wherein: and an outlet of the photocatalytic device (4) is provided with an activated carbon adsorption layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568430.9U CN214972990U (en) | 2021-03-19 | 2021-03-19 | Exhaust treatment device integrating photocatalysis and biological filter bed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568430.9U CN214972990U (en) | 2021-03-19 | 2021-03-19 | Exhaust treatment device integrating photocatalysis and biological filter bed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214972990U true CN214972990U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120568430.9U Expired - Fee Related CN214972990U (en) | 2021-03-19 | 2021-03-19 | Exhaust treatment device integrating photocatalysis and biological filter bed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214972990U (en) |
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2021
- 2021-03-19 CN CN202120568430.9U patent/CN214972990U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |