CN210410204U - High-efficient VOCs light catalytic oxidation equipment - Google Patents
High-efficient VOCs light catalytic oxidation equipment Download PDFInfo
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- CN210410204U CN210410204U CN201920546232.5U CN201920546232U CN210410204U CN 210410204 U CN210410204 U CN 210410204U CN 201920546232 U CN201920546232 U CN 201920546232U CN 210410204 U CN210410204 U CN 210410204U
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Abstract
The utility model discloses a high-efficient VOCs photocatalytic oxidation equipment, including both ends open-ended stainless steel cavity and set up the air equalizing plate that is used for keeping air intake concentration and speed in it, provide ultraviolet fluorescent tube, catalyst module and the ultraviolet reflection stratum that are used for the accelerated reaction, a clean brush and a drive mechanism that is used for driving clean brush and carries out the cleanness to the ultraviolet reflection stratum that are used for cleaning the ultraviolet reflection stratum that are used for ultraviolet reflection stratum, the stainless steel cavity is cylindric, the both ends of stainless steel cavity all are equipped with the ring flange, the air equalizing plate is fixed at the both ends of stainless steel cavity and is located the inboard of ring flange, be equipped with the hollow shaft in the stainless steel cavity, catalyst module and ultraviolet fluorescent tube all fix in the stainless steel cavity through the hollow shaft, the ultraviolet reflection stratum is fixed on the inner wall of stainless steel cavity, clean brush; the utility model overcomes current UV photodissociation equipment ultraviolet ray utilizes inadequately, the low scheduling problem of treatment effeciency.
Description
Technical Field
The utility model relates to a light catalytic oxidation technical field, especially a high-efficient VOCs light catalytic oxidation equipment.
Background
In the field of air pollution control, after SO2, dust and NOx, governments of a wide variety of volatile organic pollutants are gradually valued by governments and enterprises at all levels. The volatile organic pollutants have complex components, so the treatment difficulty is higher and the treatment technology is complicated; the components of volatile organic pollutants in industry mainly comprise components such as hydrocarbons, alcohols, aldehydes, acids, ketones, amines and the like, and most of the components can generate toxic action on human bodies. Common volatile organic waste gas treatment technologies include physical methods, chemical methods and biological methods, various treatment processes are comprehensively evaluated according to the types and sources of volatile organic pollutants, the size of treatment equipment, the treatment effect, the operation cost and other conditions, and the optimal effect can be achieved only by selecting and designing a proper treatment process combination in a targeted manner.
UV photocatalytic oxidation technology for producing O by using 185nm and 254nm ultraviolet rays in the presence of TiO2 catalyst3And free radicals to oxidize organic pollutants to CO2And H2O, and simultaneously has certain processing capacity on malodorous gas; however, the existing photocatalytic oxidation equipment generally has the problems of short service life of an ultraviolet lamp tube, low ultraviolet intensity, insufficient ultraviolet utilization and low treatment effect.
Disclosure of Invention
In order to overcome the insufficient ultraviolet utilization of the existing UV photolysis equipment, the low scheduling problem of treatment efficiency, the utility model aims to provide a high-efficient VOCs photocatalytic oxidation equipment.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
a high-efficiency VOCs photocatalytic oxidation device comprises a stainless steel cavity with openings at two ends, an air equalizing plate, an ultraviolet lamp tube, a catalyst module, an ultraviolet reflecting layer, a cleaning brush and a driving mechanism, wherein the air equalizing plate is arranged in the stainless steel cavity and used for keeping the air inlet concentration and the speed stable, the ultraviolet lamp tube is used for providing ultraviolet rays, the catalyst module and the ultraviolet reflecting layer are used for accelerating the reaction, the cleaning brush is used for cleaning the ultraviolet reflecting layer, the driving mechanism is used for driving the cleaning brush to clean the ultraviolet reflecting layer, the stainless steel cavity is cylindrical, flanges are arranged at two ends of the stainless steel cavity and welded on the stainless steel cavity, the air equalizing plate is fixed at two ends of the stainless steel cavity and positioned at the inner side of the flange, a hollow shaft is arranged in the stainless steel cavity, the right end of the hollow shaft is in threaded connection with the air equalizing plate, the air equalizing plate supports the, the ultraviolet reflecting layer is fixed on the inner wall of the stainless steel cavity, the cleaning brush is fixed on the driving mechanism through the stainless steel pipe, and the driving mechanism is fixed on the hollow shaft and drives the cleaning brush to clean the ultraviolet reflecting layer;
furthermore, plastic supports are respectively sleeved at two ends of the hollow shaft, the plastic supports are circular rings or hexagonal rings, the center of each plastic support is sleeved on the lower hollow shaft, two ends of each ultraviolet lamp tube are installed on the plastic supports, and the number of the ultraviolet lamp tubes can be designed and selected according to the components and the flow of waste gas;
further, the ultraviolet lamp tube is a high-power low-pressure mercury lamp, the main wavelength of the high-power low-pressure mercury lamp is 254nm and 185nm, the 254nm radiation efficiency accounts for about 35% of the total power, and the 185nm radiation efficiency accounts for about 7% of the total power;
further, the catalyst module comprises a catalyst framework and a catalyst arranged on the catalyst framework, the catalyst framework is cylindrical and is fixed on the hollow shaft so as to fully receive ultraviolet radiation, and the catalyst is a TiO2 high-efficiency catalyst;
further, the ultraviolet reflecting layer comprises quartz glass, a silver coating and an anti-oxidation layer, the silver coating is coated on the outer surface of the quartz glass, the thickness of the silver coating is 10 microns, and the anti-oxidation layer covers the surface of the silver coating; the silver coating is plated on the outer surface of the quartz glass through evaporation or silver mirror reaction, and an anti-oxidation material is sprayed on the surface of the silver coating to form an anti-oxidation layer so as to prevent the ultraviolet reflecting layer from being oxidized; the ultraviolet reflecting layer is fixed on the stainless steel cavity through bolts, and a small amount of damping material can be filled between the ultraviolet reflecting layer and the stainless steel cavity to prevent the ultraviolet reflecting layer from being damaged by vibration;
furthermore, the driving mechanism comprises a sleeve, a stainless steel pipe, a motor, a large gear and a small gear, the stainless steel pipe is rectangular and is fixed on the sleeve, the cleaning brush is fixed on the stainless steel pipe, the sleeve comprises a left sleeve and a right sleeve, the left sleeve and the right sleeve are respectively sleeved at two ends of the hollow shaft through bearings, the large gear is fixed on the left sleeve, the motor is fixed on the flange plate, and the small gear is fixed on a rotating shaft of the motor and is meshed with the large gear; the motor drives the pinion to rotate so as to rotate the bull gear, and the bull gear is sleeved and fixed on the left sleeve so that the sleeve and the stainless steel pipe rotate and cleaning is further carried out;
further, an ultraviolet detector and a temperature detector are installed in the middle of the stainless steel cavity, the bottoms of the ultraviolet detector and the temperature detector penetrate through the stainless steel cavity and are located inside the stainless steel cavity, and the ultraviolet detector is used for monitoring the ultraviolet intensity in the cavity in real time to determine whether the reflecting layer is scaling or whether the ultraviolet lamp tube is damaged; the temperature monitor is used for monitoring the air inlet temperature, and the optimum working temperature of the ultraviolet lamp tube is 40-50 ℃;
furthermore, the cleaning brush is a nylon fiber brush and is made of high-temperature-resistant, corrosion-resistant and wear-resistant nylon fibers, and two ends of the cleaning brush are inserted into the stainless steel pipe.
Compared with the prior art, the utility model discloses a high-efficient VOCs light catalytic oxidation equipment has following beneficial effect:
1. the utility model discloses a high-power low pressure mercury lamp is as the ultraviolet light source, by the quartz glass who has the silvered film as the ultraviolet reflection stratum, can effectual improvement ultraviolet reflection efficiency to improve the ultraviolet ray utilization ratio, waste gas dwell time is short, the efficient of processing.
2. The utility model discloses a cylindric stainless steel cavity, no illumination four corners, sealing performance is good, can prevent that the ultraviolet ray from revealing.
3. The utility model discloses a cylindric catalyst skeleton can increase the area of contact of catalyst and waste gas, reduces catalyst module's weight simultaneously.
4. The utility model discloses a clean brush comprises high temperature resistant, corrosion-resistant nylon fiber for the inner wall scale deposit of regularly clean ultraviolet reflection stratum prevents that scale deposit from reducing ultraviolet reflection stratum to ultraviolet reflection effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a front view of a catalyst module according to the present invention;
FIG. 3 is a schematic side view of a catalyst module according to the present invention;
fig. 4 is the structure schematic diagram of the ultraviolet lamp module plastic support of the utility model.
Detailed Description
The invention will be further described with reference to the drawings and specific embodiments, illustrative embodiments and description of which are provided herein to explain the invention, but not as a limitation thereof.
As shown in fig. 1, a high-efficiency VOCs photocatalytic oxidation apparatus comprises a stainless steel cavity 1 with openings at two ends, an air-equalizing plate 15 arranged in the stainless steel cavity 1 and used for keeping the intake concentration and speed stable, an ultraviolet lamp tube 8 for providing ultraviolet rays, a catalyst module 7 and an ultraviolet reflecting layer for accelerating reaction, a cleaning brush 12 for cleaning the ultraviolet reflecting layer, and a driving mechanism for driving the cleaning brush to clean the ultraviolet reflecting layer, wherein the stainless steel cavity 1 is cylindrical, two ends of the stainless steel cavity 1 are respectively provided with a flange 2, the flange 2 is fixedly connected with the stainless steel cavity 1, two ends of the stainless steel cavity 1 are respectively fixed with the air-equalizing plate 15, the air-equalizing plate 15 is positioned at the inner side of the flange 2, the air-equalizing plate 15 can keep the intake concentration and speed stable, a hollow shaft 14 is arranged in the stainless steel cavity 1, and the right end of the hollow shaft 14 is in threaded connection with the air-equalizing plate 15, the air-equalizing plate 15 supports the hollow shaft 14, the catalyst module 7 and the ultraviolet lamp tube 7 are fixed in the stainless steel cavity 1 through the hollow shaft 14, the ultraviolet reflecting layer is fixed on the inner wall of the stainless steel cavity 1, the cleaning brush 12 is fixed on the driving mechanism through the stainless steel tube 18, and the driving mechanism is fixed on the hollow shaft 14 and drives the cleaning brush to clean the ultraviolet reflecting layer 12.
Referring to fig. 1, the ultraviolet reflecting layer includes quartz glass 11, a silver plating layer 10 and an anti-oxidation layer 9, the silver plating layer 10 is plated on the outer surface of the quartz glass 11, the thickness of the silver plating layer 10 is 10 μm, and the surface of the silver plating layer 10 is covered with the anti-oxidation layer 9; the silver coating 10 is coated on the outer surface of the quartz glass 11 by vapor plating or silver mirror reaction, and an anti-oxidation material is sprayed on the surface of the silver coating to form an anti-oxidation layer 9, so that the ultraviolet reflecting layer is prevented from being oxidized; the ultraviolet reflecting layer is fixed on the stainless steel cavity through the bolts, and less damping materials can be filled between the ultraviolet reflecting layer and the stainless steel cavity, so that the ultraviolet reflecting layer is prevented from being damaged by vibration.
Referring to fig. 1, the driving mechanism includes a sleeve, a stainless steel pipe 18, a motor 3, a gearwheel 4 and a pinion 5, the stainless steel pipe 18 is rectangular and fixed on the sleeve, the cleaning brush 12 is fixed on the stainless steel pipe 18, the sleeve includes a left sleeve 6 and a right sleeve 13, the left sleeve 6 and the right sleeve 13 are respectively sleeved on two ends of a hollow shaft 14 through bearings, the gearwheel 4 is fixed on the left sleeve 6, the gearwheel is sleeved on the left sleeve 6, the motor 3 is fixed on a wind-equalizing plate 15 at the left end, and the pinion 5 is fixed on a rotating shaft of the motor 3 and meshed with the gearwheel 4; the motor 3 drives the pinion 4 to rotate so as to enable the gearwheel 5 to rotate, and the gearwheel 5 is sleeved and fixed on the left sleeve 6, so that the sleeve and the stainless steel pipe 18 rotate to clean.
The two ends of the hollow shaft 14 are respectively sleeved with a plastic support 19, as shown in fig. 4, the plastic support 19 is a circular ring, the center of the plastic support 19 is sleeved on the hollow shaft 14, the two ends of the ultraviolet lamp tubes 8 are installed on the plastic support 19, and the number of the ultraviolet lamp tubes 8 can be designed and selected according to the components and the flow rate of the waste gas; the ultraviolet lamp tube 8 is a high-power low-pressure mercury lamp, the main wavelength of the high-power low-pressure mercury lamp is 254nm and 185nm, the radiation efficiency of 254nm is about 35% of the total power, and the radiation efficiency of 185nm is about 7% of the total power; referring to fig. 2 and 3, the catalyst module 7 includes a catalyst frame 20 and a catalyst 21 disposed thereon, the catalyst frame 20 is cylindrical and is mounted in the middle of the plastic support 19 to sufficiently receive ultraviolet radiation, and the catalyst 21 is a TiO2 high-efficiency catalyst.
Referring to fig. 1, an ultraviolet detector 16 and a temperature detector 17 are installed in the middle of the stainless steel cavity 1, the bottoms of the ultraviolet detector 16 and the temperature detector 17 both penetrate through the stainless steel cavity 1 and are located inside the stainless steel cavity 1, and the ultraviolet detector 16 is used for monitoring the ultraviolet intensity in the cavity in real time to determine whether an ultraviolet reflecting layer is fouled or whether the ultraviolet lamp tube 8 is damaged; the temperature monitor 17 is used for monitoring the air inlet temperature, and the optimum working temperature of the ultraviolet lamp tube 8 is 40-50 ℃; the cleaning brush 12 is a nylon fiber brush and is made of high-temperature-resistant, corrosion-resistant and wear-resistant nylon fibers, and two ends of the cleaning brush 12 are inserted into the stainless steel tube 18.
The principle of the utility model is as follows: the waste gas enters the cavity through the air equalizing plate at a stable flow rate, and under the irradiation of an ultraviolet lamp tube, under the action of 254nm ultraviolet radiation, molecular bonds of the organic waste gas are cracked to form free atoms or radicals; in addition, under the action of 185nm ultraviolet radiation, O in the air2Generation of O3，O3Can react with water in the waste gas to generate free radicals, and organic molecules are oxidized into micromolecular CO under the action of various free radicals2And H2O, in the presence of the catalyst module, the reaction rate can be accelerated, the retention time of waste gas is effectively reduced, and a plurality of groups of treatment equipment can be used in series to achieve the optimal treatment effect; the cleaning brush is made of high temperature resistant materialThe brush is characterized by comprising corrosion-resistant and wear-resistant nylon fibers, wherein two ends of the brush are inserted into stainless steel pipes, the stainless steel pipes are welded on a sleeve, the sleeve is sleeved on a hollow shaft through a bearing, a large gear is fixed on a left sleeve and driven by a small gear, and the small gear is driven by a motor; the cleaning period can be determined by detecting the intensity of ultraviolet rays, and the intensity of the ultraviolet rays is weakened after the ultraviolet reflecting layer is subjected to scale deposition, so that the cleaning can be carried out irregularly.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (8)
1. A high-efficiency VOCs photocatalytic oxidation device is characterized by comprising a stainless steel cavity with openings at two ends, an air equalizing plate, an ultraviolet lamp tube, a catalyst module, an ultraviolet reflecting layer, a cleaning brush and a driving mechanism, wherein the air equalizing plate is arranged in the stainless steel cavity and used for keeping the air inlet concentration and the speed stable, the ultraviolet lamp tube is used for providing ultraviolet rays, the catalyst module and the ultraviolet reflecting layer are used for accelerating reaction, the cleaning brush is used for cleaning the ultraviolet reflecting layer, the driving mechanism is used for driving the cleaning brush to clean the ultraviolet reflecting layer, the stainless steel cavity is cylindrical, flange plates are arranged at two ends of the stainless steel cavity, the flange plates are welded at two ends of the stainless steel cavity, the air equalizing plate is fixed at two ends of the stainless steel cavity and positioned at the inner side of the flange plate, a hollow shaft is arranged in the stainless steel cavity, the right end of the hollow shaft is in threaded connection, the ultraviolet reflecting layer is fixed on the inner wall of the stainless steel cavity, the cleaning brush is fixed on the driving mechanism through the stainless steel pipe, and the driving mechanism is fixed on the hollow shaft.
2. The photocatalytic oxidation apparatus for high-efficiency VOCs according to claim 1, wherein plastic supports are respectively sleeved at two ends of the hollow shaft, the plastic supports are circular rings or hexagonal rings, the centers of the plastic supports are sleeved on the hollow shaft, and the ultraviolet lamp tubes are installed on the plastic supports.
3. The photocatalytic oxidation equipment for high-efficiency VOCs according to claim 2, wherein the ultraviolet lamp tube is a high-power low-pressure mercury lamp, and the main wavelength of the high-power low-pressure mercury lamp is 254nm and 185 nm.
4. The photocatalytic oxidation apparatus for high-efficiency VOCs according to claim 1, wherein the catalyst module comprises a catalyst frame and a catalyst disposed thereon, the catalyst frame is cylindrical and fixed on a hollow shaft, and the catalyst is a TiO2 high-efficiency catalyst.
5. The photocatalytic oxidation apparatus for high-efficiency VOCs according to claim 1, wherein the ultraviolet reflecting layer comprises quartz glass, a silver plating layer and an oxidation preventing layer, the silver plating layer is plated on the outer surface of the quartz glass, the thickness of the silver plating layer is 10 μm, and the surface of the silver plating layer is covered with the oxidation preventing layer.
6. The photocatalytic oxidation equipment for high-efficiency VOCs (volatile organic chemicals) according to claim 1, wherein the driving mechanism comprises a sleeve, a stainless steel pipe, a motor, a gear wheel and a pinion, the stainless steel pipe is rectangular and fixed on the sleeve, the cleaning brush is fixed on the stainless steel pipe, the sleeve comprises a left sleeve and a right sleeve, the left sleeve and the right sleeve are respectively sleeved at two ends of the hollow shaft through bearings, the gear wheel is fixed on the left sleeve, the motor is fixed on the flange plate, and the pinion is fixed on a rotating shaft of the motor and meshed with the gear wheel.
7. The photocatalytic oxidation apparatus for high-efficiency VOCs according to claim 1, wherein an ultraviolet detector and a temperature detector are installed in the middle of the stainless steel chamber, and the bottom of the ultraviolet detector and the bottom of the temperature detector both penetrate through the stainless steel chamber and are located inside the stainless steel chamber.
8. The photocatalytic oxidation equipment for high-efficiency VOCs according to claim 1, wherein the cleaning brush is a nylon fiber brush, and both ends of the cleaning brush are inserted into stainless steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546232.5U CN210410204U (en) | 2019-04-22 | 2019-04-22 | High-efficient VOCs light catalytic oxidation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546232.5U CN210410204U (en) | 2019-04-22 | 2019-04-22 | High-efficient VOCs light catalytic oxidation equipment |
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| Publication Number | Publication Date |
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| CN210410204U true CN210410204U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920546232.5U Expired - Fee Related CN210410204U (en) | 2019-04-22 | 2019-04-22 | High-efficient VOCs light catalytic oxidation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083316A (en) * | 2021-03-22 | 2021-07-09 | 榆林学院 | Modified TiO (titanium dioxide)2Preparation method of (1) and indoor ultraviolet lamp device |
-
2019
- 2019-04-22 CN CN201920546232.5U patent/CN210410204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083316A (en) * | 2021-03-22 | 2021-07-09 | 榆林学院 | Modified TiO (titanium dioxide)2Preparation method of (1) and indoor ultraviolet lamp device |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 Termination date: 20210422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |