CN215742746U - VOC adsorbs and normal position decomposition device - Google Patents
VOC adsorbs and normal position decomposition device Download PDFInfo
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- CN215742746U CN215742746U CN202122131774.6U CN202122131774U CN215742746U CN 215742746 U CN215742746 U CN 215742746U CN 202122131774 U CN202122131774 U CN 202122131774U CN 215742746 U CN215742746 U CN 215742746U
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Abstract
The utility model relates to the technical field of VOC treatment and discloses a VOC adsorption and in-situ decomposition device which comprises a VOC air inlet pipe, a VOC adsorption and decomposition area and a clean gas outlet pipe; an ozone generation controller is arranged in the VOC air inlet pipe; the VOC adsorption and decomposition area is provided with an adsorption and decomposition air inlet and an adsorption and decomposition air outlet; one end of the VOC air inlet pipe is provided with a VOC air inlet, and the other end of the VOC air inlet pipe is connected with the adsorption decomposition air inlet; one end of the clean gas outlet pipe is provided with a clean gas outlet, and the other end of the clean gas outlet pipe is connected with the adsorption and decomposition gas outlet; an LED ultraviolet light source and a photocatalyst adsorbent are arranged in the VOC adsorption and decomposition area; an ozone and VOC concentration detector is arranged in the clean gas outlet pipe. The utility model can realize the in-situ adsorption and degradation of VOC, and the photocatalyst adsorbent can be continuously used without being replaced regularly, so that the device is more convenient to use, the VOC treatment efficiency is higher, and the risk waste of the photocatalyst adsorbent which is difficult to treat can not be generated.
Description
Technical Field
The utility model relates to the technical field of VOC (volatile organic compound) treatment, in particular to a VOC adsorption and in-situ decomposition device.
Background
Volatile Organic Compounds (VOC) generally refer to organic compounds having a high saturated vapor pressure (greater than or equal to 0.01KPa at 20 ℃), a low boiling point, a small molecular weight, and being volatile at room temperature, and the VOC mainly contains hydrocarbons, halogenated hydrocarbons, nitrogen hydrocarbons, oxygen-containing hydrocarbons, sulfur hydrocarbons, low-boiling polycyclic aromatic hydrocarbons, and the like, and is characterized by a low boiling point, a small molecular weight, and being volatile at room temperature. The VOC is widely derived from artificial pollution sources such as petrochemical industry, organic chemical industry, surface coating, packaging and printing, motor vehicles, paint production, pharmacy, solvent use, three-waste treatment, biomass combustion, coal combustion and the like, and natural pollution sources such as forests, vegetations, soil microorganisms, crops and the like.
VOC has large pollution to air and strong harm. VOC is easy to be emitted into the atmosphere and directly harms human health, for example, benzene compounds can directly damage the central nerve of a human body, easily cause the nervous system disorder of the human body, and also can cause the function damage of hematopoietic organs after being absorbed by the internal organs of the human body, and generate septicemia or bleeding and other problems, halogenated hydrocarbon can cause cancer, reduce blood platelets and cause the reduction of liver function; in addition, hydrocarbons and nitrogen oxides in the VOC can generate a series of complex reactions under the action of sunlight and heat, which easily causes environmental problems such as haze and photochemical smog, and the VOC contains flammable and explosive compounds such as aliphatic hydrocarbons, which can bring about potential safety hazards of fire or explosion. Therefore, the VOC treatment work is highly valued, the influence of VOC on the environment is reduced, and the physical health of residents is guaranteed.
The adsorption method is one of the methods commonly used in VOC recovery treatment, and traps organic molecules by using adsorbents such as activated carbon, carbon fiber, zeolite, etc. having a large specific surface area and a porous structure, and when exhaust gas passes through an adsorption bed, the organic substances are adsorbed in pores, so that the gas is purified. For example, patent CN201820772465.2 discloses a VOC adsorption device for pharmacy, which includes a device body having an adsorption space inside and at least 2 adsorption layers, where the adsorption layers include a sealing plate, an adsorption plate, a ventilation layer and a net pad, the middle part of the adsorption plate is hollow to form an inner side and is in a frame shape, the ventilation layer and the net pad are connected to the inner side of the adsorption plate, the device body is provided with an inner connecting strip, the inner connecting strip faces the adsorption space and is recessed inwards to form a groove, the edge of the adsorption plate matches with the groove, the adsorption plate is connected to the sealing plate, and the adsorption plate is slidable relative to the groove; the adsorbed layer is installed in the device internally, strains the gas subassembly and installs in the device internally, and intake pipe and blast pipe are connected to the device body respectively. The device can lay physics or chemical adsorption agent in the multilayer, has realized having reduced the quantity to the adsorbent to the multiple treatment of VOC gas, has alleviateed adsorption equipment's weight, but also has following problem simultaneously: after the adsorbent adsorbs a certain amount of VOC, the adsorption performance is reduced, the adsorbent needs to be replaced regularly, the device is inconvenient to use, the VOC treatment efficiency is low, the adsorbent cannot convert the VOC into harmless substances, and the replaced VOC is difficult to treat.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a VOC adsorption and in-situ decomposition device. The utility model can realize the in-situ adsorption and degradation of VOC, and the photocatalyst adsorbent can be continuously used without being replaced regularly, so that the device is more convenient to use, the VOC treatment efficiency is higher, and the risk waste of the photocatalyst adsorbent which is difficult to treat can not be generated.
The specific technical scheme of the utility model is as follows:
a VOC adsorption and in-situ decomposition device comprises a VOC air inlet pipe, a VOC adsorption and decomposition area and a clean gas outlet pipe; an ozone generation controller is arranged in the VOC air inlet pipe; an adsorption and decomposition air inlet and an adsorption and decomposition air outlet are arranged in the VOC adsorption and decomposition area; one end of the VOC air inlet pipe is provided with a VOC air inlet, and the other end of the VOC air inlet pipe is connected with the adsorption and decomposition air inlet; one end of the clean gas outlet pipe is provided with a clean gas outlet, and the other end of the clean gas outlet pipe is connected with the adsorption decomposition gas outlet; an LED ultraviolet light source and a photocatalyst adsorbent are arranged in the VOC adsorption and decomposition area; and an ozone and VOC concentration detector is arranged in the clean gas outlet pipe.
The working process of the VOC adsorption and in-situ decomposition device is as follows: firstly, the VOC gas is introduced into the VOC adsorption decomposition area through the VOC gas inlet pipe and is adsorbed by the photocatalyst adsorbent. Under the action of ultraviolet light, the adsorbed VOC substances are decomposed into clean gas by the photocatalyst. Under the normal condition, the adsorption performance and the photocatalyst decomposition performance of the device are in a balanced state, so that the in-situ degradation of VOC is realized, and the adsorbent does not need to be replaced. When the concentration of the VOC air inlet is too high and exceeds the decomposition capacity of the photocatalyst, the VOC adsorption amount of the adsorbent can be continuously increased, and when a certain amount of VOC is detected by the ozone and VOC concentration detector, the VOC adsorption is close to saturation; then starting an ozone generation controller to generate ozone, wherein the ozone can react with the VOC adsorbed in the photocatalyst adsorbent after entering the VOC adsorption and decomposition area to degrade the VOC into clean gas, and the clean gas is discharged through a clean gas outlet pipe; when the ozone and VOC concentration detected by the VOC concentration detector is increased, the degradation of the adsorbed VOC in the photocatalyst adsorbent is completed.
By adopting the device, the in-situ adsorption and degradation of VOC can be realized, the photocatalyst adsorbent can be regenerated in situ without replacement, so that the use is more convenient, and the hazardous waste of the photocatalyst adsorbent which is difficult to treat can not be generated.
Preferably, a plurality of partition plates which are arranged in a staggered manner to form a circuitous channel are arranged in the VOC adsorption and decomposition area; the photocatalyst adsorbent is filled in the circuitous channel; the adsorption and decomposition air inlet and the adsorption and decomposition air outlet are respectively arranged at two ends of the circuitous channel.
In VOC adsorbs the decomposition area, adopt a plurality of division boards to form circuitous passageway, VOC gas lets in from circuitous passageway's one end, discharge from the other end behind the photocatalyst adsorbent who wherein fills, through this kind of structural design, can prolong the route that VOC gas passes through in VOC adsorbs the decomposition area, thereby increase the contact between VOC gas and the photocatalyst adsorbent in limited space, make full use of photocatalyst adsorbent catalytic degradation VOC gas in the VOC adsorption decomposition area, and improve VOC gaseous adsorption capacity, and then improve the gaseous purifying effect of VOC in the VOC adsorption decomposition area.
Preferably, the LED ultraviolet light source is arranged on all or part of the separation plate.
Preferably, 4 partition plates are arranged in the VOC adsorption and decomposition area, wherein LED ultraviolet light sources are arranged on two surfaces of the two partition plates positioned on two sides and one partition plate positioned in the middle.
Through the design, the distribution of the LED ultraviolet light source can be reduced on the premise that the photocatalyst adsorbent in the VOC adsorption and decomposition area can be fully contacted with ultraviolet light, so that the production and use cost of the device is reduced.
Preferably, the ozone and VOC concentration detector is arranged in the clean gas outlet pipe and close to the adsorption and decomposition gas outlet.
Preferably, an ozone destruction device is arranged in the clean gas outlet pipe and close to the clean gas outlet.
When the ozone and VOC concentration detector detects a certain amount of ozone, the ozone destruction device is started to ensure that no ozone is discharged from the clean gas outlet, thereby preventing ozone pollution.
Preferably, two sides of the ozone destruction device in the clean gas outlet pipe are respectively provided with an ultraviolet-proof grid.
The function of the ultraviolet-proof grid is as follows: prevent the burning of operators caused by the leakage of ultraviolet light, prevent the side reaction caused by the ultraviolet light and reduce the synthesis conversion rate.
Preferably, a dust intercepting grid is arranged in the VOC air inlet pipe.
The dust interception grid can remove dust in the VOC gas and prevent the dust from entering the VOC adsorption decomposition area and then attaching to the photocatalyst adsorbent, so that the adsorption performance of the VOC adsorption decomposition area is reduced.
Preferably, the dust intercepting grid is arranged in the VOC air inlet pipe and close to the VOC air inlet.
Preferably, the ozone generation controller is arranged in the VOC air inlet pipe and close to the adsorption and decomposition air inlet.
Compared with the prior art, the utility model has the following advantages:
(1) the device can realize the in-situ adsorption and degradation of VOC, and the photocatalyst adsorbent can be continuously used without being replaced regularly, so that the device is more convenient to use, the VOC treatment efficiency is higher, and the risk waste of the photocatalyst adsorbent which is difficult to treat can not be generated;
(2) a plurality of partition plates are adopted in the VOC adsorption and decomposition area to form a roundabout channel, so that the adsorption quantity of the VOC gas can be increased in a limited space by fully utilizing the photocatalyst adsorbent, and the quantity of the VOC gas which can be treated by adsorption and decomposition of the device at each time can be increased.
Drawings
FIG. 1 is a schematic view of the structure of a VOC adsorbing and decomposing apparatus in situ of example 1;
FIG. 2 is a schematic view of the structure of the VOC adsorbing and in-situ decomposing apparatus of example 2;
fig. 3 is a schematic structural view of the VOC adsorption and in-situ decomposition device of example 3.
The reference signs are: VOC intake pipe 2.1, VOC adsorbs decomposition district 2.2, adsorb decomposition air inlet 2.2.1, adsorb decomposition gas outlet 2.2.2, LED ultraviolet source 2.2.3, photocatalyst adsorbent 2.2.4, division board 2.2.5, clean gas outlet pipe 2.3, ozone generation controller 2.4, clean gas outlet 2.5, ozone and VOC concentration detector 2.6, fan 2.7, condensation district 2.8, condenser pipe 2.8.1, go out tuber pipe 2.9, purified gas outlet 2.10, ozone destruction device 2.11, dust interception net 2.12, anti ultraviolet net 2.13, temperature controller 2.14, VOC air inlet 2.15.
Detailed Description
The present invention will be further described with reference to the following examples. The devices, connections, and methods referred to in this disclosure are those known in the art, unless otherwise indicated.
Example 1
As shown in fig. 1, a VOC adsorption and in-situ decomposition device comprises a VOC inlet pipe 2.1, a VOC adsorption and decomposition area 2.2 and a clean gas outlet pipe 2.3.
The VOC adsorption and decomposition area 2.2 is internally provided with 4 separating plates 2.2.5 which are arranged in a staggered mode to form a circuitous channel, wherein the two separating plates 2.2.5 positioned at two sides and one separating plate 2.2.5 positioned in the middle are both provided with LED ultraviolet light sources 2.2.3, and the other separating plate 2.2.5 positioned in the middle is not provided with the LED ultraviolet light sources 2.2.3. And an adsorption and decomposition air inlet 2.2.1 and an adsorption and decomposition air outlet 2.2.2 are respectively arranged at two ends of the roundabout channel. And the circuitous channel is filled with photocatalyst adsorbent 2.2.4.
One end of the VOC air inlet pipe 2.1 is provided with a VOC air inlet 2.15, and the other end is connected with the adsorption and decomposition air inlet 2.2.1. And a dust intercepting grid 2.12 is arranged in the VOC air inlet pipe 2.1 and close to the VOC air inlet 2.15. An ozone generation controller 2.4 is arranged in the VOC air inlet pipe 2.1 and close to the adsorption and decomposition air inlet 2.2.1.
One end of the clean gas outlet pipe 2.3 is provided with a clean gas outlet 2.5, and the other end is connected with the adsorption and decomposition gas outlet 2.2.2. And an ozone and VOC concentration detector 2.6 is arranged in the clean gas outlet pipe 2.3 close to the adsorption and decomposition gas outlet 2.2.2.
The working process of the VOC adsorption and in-situ decomposition device of this embodiment is as follows: first, the VOC gas is introduced into the VOC adsorption/decomposition area 2.2 through the VOC gas inlet pipe 2.1, and is adsorbed by the photocatalyst adsorbent 2.2.4. Under the action of ultraviolet light, the adsorbed VOC substances are decomposed into clean gas by the photocatalyst. Under the normal condition, the adsorption performance and the photocatalyst decomposition performance of the device are in a balanced state, so that the in-situ degradation of VOC is realized, and the adsorbent does not need to be replaced. When the concentration of the VOC air inlet is too high and exceeds the decomposition capacity of the photocatalyst, the VOC adsorption amount of the adsorbent can be continuously increased, and when a certain amount of VOC is detected by the ozone and VOC concentration detector 2.6, the VOC adsorption is close to saturation; then starting an ozone generation controller 2.4 to generate ozone, wherein the ozone can react with the VOC adsorbed in the photocatalyst adsorbent 2.2.4 after entering the VOC adsorption and decomposition area 2.2 to degrade the VOC into clean gas, and the clean gas is discharged through a clean gas outlet pipe 2.3; when the concentration of ozone detected by the ozone and VOC concentration detector 2.6 increases, it indicates that degradation of the adsorbed VOC in the photocatalyst adsorbent 2.2.4 is complete.
Through above mode, can realize VOC's normal position absorption and degradation, photocatalyst adsorbent can the normal position regeneration, and sustainable use does not need the periodic replacement, therefore the use of device is more convenient, and VOC treatment effeciency is higher, and can not produce the photocatalyst adsorbent danger that is difficult to handle useless.
Example 2
As shown in fig. 2, the difference between this embodiment and embodiment 1 is that in this embodiment, an ozone destruction device 2.11 is disposed in the clean gas outlet pipe 2.3 near the clean gas outlet 2.5. Two sides of the ozone destruction device 2.11 in the clean gas outlet pipe 2.3 are respectively provided with an anti-ultraviolet grid 2.13.
When the ozone and VOC concentration detector 2.6 detects a certain amount of ozone, the ozone destruction device 2.11 is started to make the clean gas outlet 2.5 discharge no ozone, thereby preventing ozone pollution.
Example 3
As shown in fig. 3, the present embodiment is different from embodiment 2 in that, in the present embodiment, the VOC adsorption and in-situ decomposition device further includes a fan 2.7, a condensation zone 2.8 and an air outlet pipe 2.9; the clean gas outlet 2.5 is communicated with the air inlet of the fan 2.7; the air outlet of the fan 2.7 is communicated with the condensation area 2.8; one end of the air outlet pipe 2.9 is communicated with the condensing zone 2.8, and the other end is provided with a purified gas outlet 2.10; a spiral condensing pipe 2.8.1 is arranged in the condensing area 2.8. A temperature controller 2.14 is arranged in the air outlet pipe 2.9.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The VOC adsorption and in-situ decomposition device is characterized by comprising a VOC air inlet pipe (2.1), a VOC adsorption and decomposition area (2.2) and a clean gas outlet pipe (2.3); an ozone generation controller (2.4) is arranged in the VOC air inlet pipe (2.1); an adsorption and decomposition air inlet (2.2.1) and an adsorption and decomposition air outlet (2.2.2) are arranged in the VOC adsorption and decomposition area (2.2); one end of the VOC air inlet pipe (2.1) is provided with a VOC air inlet (2.15), and the other end of the VOC air inlet pipe is connected with the adsorption and decomposition air inlet (2.2.1); one end of the clean gas outlet pipe (2.3) is provided with a clean gas outlet (2.5), and the other end is connected with an adsorption and decomposition gas outlet (2.2.2); an LED ultraviolet light source (2.2.3) and a photocatalyst adsorbent (2.2.4) are arranged in the VOC adsorption and decomposition area (2.2); an ozone and VOC concentration detector (2.6) is arranged in the clean gas outlet pipe (2.3).
2. The VOC adsorption and in-situ decomposition device according to claim 1, wherein a plurality of partition plates (2.2.5) are arranged in the VOC adsorption and decomposition zone (2.2) in a staggered manner to form a circuitous channel; the photocatalyst adsorbent (2.2.4) is filled in the circuitous channel; the adsorption and decomposition air inlet (2.2.1) and the adsorption and decomposition air outlet (2.2.2) are respectively arranged at two ends of the circuitous channel.
3. A VOC adsorption and in-situ decomposition device according to claim 2, wherein the LED uv light source (2.2.3) is provided on all or part of the separator plate (2.2.5).
4. The VOC adsorption and in-situ decomposition device according to claim 3, wherein 4 separation plates (2.2.5) are arranged in the VOC adsorption decomposition area (2.2), wherein LED ultraviolet light sources (2.2.3) are arranged on two sides of two separation plates (2.2.5) at two sides and one separation plate (2.2.5) in the middle.
5. The VOC adsorption and in-situ decomposition device according to claim 4, wherein said ozone and VOC concentration detector (2.6) is arranged in the clean gas outlet pipe (2.3) close to the adsorption decomposition gas outlet (2.2.2).
6. The apparatus for VOC adsorption and in-situ decomposition according to claim 1 or 5, wherein an ozone destruction device (2.11) is provided in the clean gas outlet pipe (2.3) near the clean gas outlet (2.5).
7. The apparatus for VOC adsorption and in-situ decomposition according to claim 6, wherein two sides of said ozone destruction unit (2.11) in said clean gas outlet pipe (2.3) are respectively provided with an ultraviolet-proof mesh (2.13).
8. VOC adsorption and in-situ decomposition device according to claim 1, characterized in that a dust intercepting grid (2.12) is provided inside the VOC inlet pipe (2.1).
9. VOC adsorbing and in-situ decomposing device according to claim 8, characterized in that said dust intercepting grid (2.12) is arranged in the VOC inlet duct (2.1) close to the VOC inlet (2.15).
10. A VOC adsorption and in-situ decomposition device according to claim 9 wherein the ozone generation controller (2.4) is provided in the VOC inlet pipe (2.1) near the adsorption decomposition inlet port (2.2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122131774.6U CN215742746U (en) | 2021-09-03 | 2021-09-03 | VOC adsorbs and normal position decomposition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122131774.6U CN215742746U (en) | 2021-09-03 | 2021-09-03 | VOC adsorbs and normal position decomposition device |
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| CN215742746U true CN215742746U (en) | 2022-02-08 |
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| CN202122131774.6U Active CN215742746U (en) | 2021-09-03 | 2021-09-03 | VOC adsorbs and normal position decomposition device |
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2021
- 2021-09-03 CN CN202122131774.6U patent/CN215742746U/en active Active
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