Automatic UV photolysis and photocatalysis equipment
Through the design of double helix catalytic support and filter plate, the problem of insufficient contact between gas and catalyst and UV lamp is solved, and more efficient photolysis catalysis is achieved, which improves the pollutant decomposition effect and reduces costs.
Patent Information
- Application Number
- CN202420729622.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-10
AI Technical Summary
In the existing UV photolysis oxidation technology catalytic device, the gas contact with the catalyst and the UV lamp is insufficient, resulting in incomplete photolysis catalytic, and increasing the number of UV lamps will increase costs.
The double helix catalytic support design is adopted, and the catalytic layer and light reflective layer are arranged intertwined to increase the contact area and contact time of the gas with UV light and catalyst, and the gas is fully filtration and photolysis catalysis through the double helix structure and filter plate design.
It improves photocatalytic efficiency, extends the flow time of exhaust gas in the catalytic body, enhances the decomposition and oxidation effect of pollutants, reduces impurity emissions, reduces the demand for subsequent purification processes, and improves the durability of the equipment.
Smart Images
Figure CN222151552U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of waste gas purification, in particular to an automated UV photolysis and photocatalysis device. Background Art
[0002] Malodor is a sensory public hazard and has become one of the seven environmental hazards in the world (air pollution, water pollution, soil pollution, noise, vibration, land subsidence and malodor), which greatly endangers people's health and the peace and comfort of life. There are as many as 400,000 to 500,000 kinds of malodorous substances, among which the main components are sulfides, nitrogen compounds, oxides, halogen derivatives and various hydrocarbons. The harm caused to the human body ranks second among the seven environmental hazards, second only to noise. Malodorous gas control technology can be divided into process control and end-of-pipe treatment. The methods commonly used for malodorous waste gas treatment include adsorption, absorption, condensation, combustion, biological method and photocatalytic oxidation technology.
[0003] Among them, UV photocatalytic technology converts light energy into chemical energy by using photosensitive semiconductor materials such as Tio2, ZnO, and WO3 under the irradiation of a vacuum ultraviolet lamp (VUV). The generated particles react with water and oxygen to produce free radicals with strong oxidizing ability, which has a very strong odor treatment ability. The advantages of this method are high reaction rate, strong treatment effect, and the reaction process has little to do with the solution used to treat organic waste gas. The reaction process of UV photocatalytic technology is a high-energy ultraviolet ray of a specific wavelength, which can not only resonate and dissociate characteristic odor molecules, but also quickly decompose oxygen molecules and water molecules in the air and couple photocatalyst reactions to generate oxygen free radicals and hydroxyl free radicals with strong oxidizing properties, so that organic gases are completely decomposed into C02 and H20; at the same time, microwaves promote the conversion of hydroxyl groups to OH, synergistically promote the breakage of the odor chain structure of odor macromolecules, so that odor molecules are gradually mineralized or completely oxidized, and can promote the surface hydroxylation of odor molecules, greatly improving their activity, thereby improving the efficiency of active absorption of deodorants. The entire decomposition, oxidation, and activation process is completed in an instant.
[0004] In the existing conventional UV photolysis oxidation technology catalytic device, the catalyst carrier is mostly composed of parallel plates, corrugated plates or single spiral plates. However, in the actual catalytic process, the gas flow path is single, and thus some gases have the problem of insufficient contact with the catalyst. At the same time, if the UV lamp tubes in the existing conventional UV photolysis oxidation technology catalytic device are set in a single group, the gas is not sufficiently irradiated, resulting in incomplete photocatalytic catalysis. However, if multiple groups of UV lamp tubes are set, there is a problem of high cost. Therefore, it is necessary to propose an automated UV photocatalytic device in which the gas can fully contact with the catalyst and the UV lamp and fully photocatalyze. Utility Model Content
[0005] In order to solve the problem of insufficient contact between the above-mentioned gas, catalyst and UV light, the purpose of the utility model is to provide an automated UV photolysis photocatalytic equipment, which can achieve sufficient contact area and contact time between the gas and the UV light and catalyst by means of a double-helix catalytic carrier and staggered arrangement of the catalytic layer and the light reflecting layer on the double-helix catalytic carrier, thereby achieving a photocatalytic effect.
[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: an automated UV photolysis photocatalytic device, comprising a catalyst body, with inclined air inlet pipes and air outlet pipes at the top two ends of the catalyst body, flow meters are arranged in the air inlet pipe and the air outlet pipe, and the flow meter signals are connected to the controller, and the inside of the catalyst body is respectively provided with a first filter plate, a double-helix catalyst carrier, and a second filter plate from left to right, the two ends of the double-helix catalyst carrier are respectively arranged on the first filter plate and the second filter plate, and the first filter plate and the second filter plate are provided with a plurality of filter holes;
[0007] The first filter plate is close to the air inlet pipe, the second filter plate is close to the air outlet pipe, and a catalytic chamber is provided between the first filter plate and the second filter plate, a purification chamber is provided between the second filter plate and the air outlet pipe, UV lamps are provided on the top and bottom walls of the catalytic chamber and the purification chamber, and the two spiral sheets on the double-helix catalytic carrier are respectively coated with a catalytic layer and a light reflecting layer, and the catalytic layer and the light reflecting layer are alternately arranged.
[0008] The principle of the basic scheme is: first, the exhaust gas is injected from the air intake pipe, and then the gas passes through the first filter plate to filter impurities, and then the exhaust gas flows to the double-helix catalytic carrier, and then the gas will contact the double-helix catalytic carrier, where the double-helix catalytic carrier is staggered with catalytic layers and light reflection layers. Therefore, on the one hand, the light reflection layer can fully reflect the UV light at the top and bottom walls of the catalytic chamber to the exhaust gas, and the energy of UV ultraviolet light turns the molecules in the air into free oxygen, which then combines with oxygen molecules to generate ozone with stronger oxidation ability, thereby destroying the molecular chains of organic or inorganic polymer compounds and turning them into low molecular compounds, such as CO, HO, etc. At the same time, on the other hand, the decomposition movement can be strengthened under the action of the combined catalyst, thereby achieving a full purification effect;
[0009] The gas after photolysis and catalysis then flows through the second filter plate for further filtration, and at the same time flows into the purification chamber and then flows out from the outlet pipe. The flow meters in the inlet and outlet pipes can collect the output and input gas flow rates, and transmit the flow information to the controller. The controller can appropriately adjust the operation of the equipment according to the gas flow rate, and automatically adjust the photolysis and catalytic effects of the equipment.
[0010] The beneficial effects of the basic solution are: 1. The design of the double helix structure can increase the surface area of the catalytic carrier, thereby providing more reaction sites. This helps to improve the photocatalytic efficiency, because more pollutant molecules can contact and react with the catalytic layer, and the design of the double helix structure is also conducive to delaying the flow time of exhaust gas in the catalyst body, thereby achieving more complete decomposition and catalysis of exhaust gas. In addition, the coating process of the catalytic layer and the light reflection layer can also enhance the adhesion between the spiral sheet and the carrier, and improve the durability of the equipment.
[0011] 2. The catalytic layer is arranged on the spiral sheet, which can make full use of the irradiation of ultraviolet light. The catalyst in the catalytic layer (such as titanium dioxide) will generate electrons and holes under the excitation of ultraviolet light, which will then trigger an oxidation-reduction reaction and degrade organic pollutants. This structural design enables the catalyst to receive light evenly, improving the utilization rate of light energy, and the setting of the light reflection layer can reflect ultraviolet light, so that the light is reflected and refracted multiple times inside the device. This can not only prolong the residence time of ultraviolet light inside the device and improve the utilization rate of light energy, but also allow more pollutant molecules to be irradiated and degraded by ultraviolet light. In addition, the light reflection layer can also reduce the energy loss of ultraviolet light and further improve the photocatalytic efficiency.
[0012] 3. This solution is provided with a first filter plate and a second filter plate, which can achieve graded filtering treatment of the waste gas during the process of decomposing the waste gas, thereby reducing the impurities in the discharged gas and reducing other subsequent gas purification processes.
[0013] Furthermore, the top wall and the bottom wall of the first filter plate and the second filter plate are only provided with a plurality of tension springs, and the other ends of the tension springs are fixedly connected to the inner wall of the catalyst body.
[0014] The beneficial effect of the basic scheme is that after the exhaust gas is input into the catalyst body, different pressures can be applied to the tension spring as the flow of the gas changes, and the tension spring can produce a certain degree of contraction and extension movement under the large amount of gas flow, and the first filter plate and the second filter plate can vibrate slightly under this drive, thereby reducing the problem of impurities and other factors blocking the filter holes, and the double-helix catalytic carrier can also increase the contact area with the exhaust gas and increase the angle change of light reflection under this vibration, thereby achieving sufficient reflection of UV light and achieving sufficient contact between the exhaust gas and the catalyst layer and photocatalysis.
[0015] Furthermore, air amplifiers are provided in both the air inlet duct and the air outlet duct.
[0016] The beneficial effect of the basic solution is that the design of the air amplifier can increase the gas pressure change and thus the flow velocity change when the gas is input and output, thereby driving the gas to fully flow into the catalyst body, thereby improving the photocatalytic efficiency of the exhaust gas to a certain extent.
[0017] Furthermore, a flow cavity is provided between the first filter plate and the air intake pipe, a rotating shaft is provided in the flow cavity, one end of the rotating shaft is fixedly connected to the double-helix catalyst carrier, the other end of the rotating shaft is fixedly connected to a telescopic rod, the other end of the telescopic rod is rotatably connected to the inner wall of the catalyst body, and the two ends of the double-helix catalyst carrier are rotatably connected to the first filter plate and the second filter plate respectively;
[0018] A plurality of fan blades are fixedly connected to the rotating shaft, and the fan blades are all located below the air intake duct.
[0019] The beneficial effects of the basic scheme are: when the exhaust gas is injected from the air intake pipe, the flow speed of the gas is accelerated under the action of the air amplifier, and the gas will flow through the fan blades, and then the fan blades rotate under the action of the gas flow, and the shaft rotates accordingly, thereby driving the double-helix catalytic carrier to rotate. When the double-helix catalytic carrier rotates, the light reflection layer on the double-helix catalytic carrier can continuously change the reflection angle, and then reflect UV light at different angles, so as to fully utilize UV light resources and make it fully contact with the exhaust gas. At the same time, the contact area between the catalytic layer and the exhaust gas can also be increased, thereby enhancing the catalytic effect;
[0020] At the same time, the double-helix catalytic carrier can drive the flow of exhaust gas in the catalytic chamber, so that part of the gas flowing into the four corners of the catalytic chamber can fully contact the catalyst and UV light, thereby reducing the problem of insufficient exhaust gas photolysis. The rotation of the double-helix catalytic carrier can drive the tension springs on the first filter plate and the second filter plate to move. The double-helix catalytic carrier can produce a corresponding up and down reciprocating action under this action, thereby once again increasing the contact area with the exhaust gas while prolonging the residence time of the exhaust gas in the catalyst body.
[0021] Furthermore, a plurality of baffles are arranged in the purification chamber, the plurality of baffles are combined to form a broken line shape, a plurality of flow holes are arranged on the baffles, and the flow holes on different baffles are staggered, and a catalytic layer is arranged on the flow holes.
[0022] The beneficial effect of the basic solution is that the baffle design further extends the flow time of the gas in the purification chamber, and because the gas must use the flow holes to flow to the outlet pipe, the gas must first flow through the catalyst layer, thereby achieving that the gas in the catalyst body can be affected by photocatalysis, reducing the problem of insufficient catalysis.
[0023] Furthermore, the joints of the baffles are hinged, and the first baffle is hinged to one side of the second filter plate, and the last baffle is hinged to the inner wall of the catalyst body and located below the outlet pipe, and the last baffle is not provided with a flow through hole.
[0024] The beneficial effect of the basic scheme is that when the first filter plate and the second filter plate perform a certain movement under the action of the tension spring, the baffle can be driven to perform corresponding movement. At the same time, because several baffles are hinged, all the baffles can perform corresponding lateral expansion or approaching movements, thereby being able to make certain changes to the flow path of the gas, thereby extending the time that the gas stays in the catalyst body so that the exhaust gas can be fully decomposed. In addition, because the last baffle is not provided with a flow through hole and is located below the exhaust pipe, it can play a certain guiding role and reduce the problem of some gas being retained at the four corners and not being fully output.
[0025] Furthermore, the hinge points of the plurality of baffles are provided with sliding blocks, and the inner wall of the catalyst body is provided with corresponding sliding grooves.
[0026] The beneficial effect of the basic solution is that the design of the slider and the slide groove can increase the stability of the baffle plate to a certain extent without affecting its movement in the catalyst body.
[0027] Furthermore, the wavelengths of the UV lamps in the catalytic chamber and the purification chamber are different. The wavelength of the UV lamp in the catalytic chamber is 185 nm, and the wavelength of the UV lamp in the purification chamber is 254 nm.
[0028] The beneficial effects of the basic scheme are: when the wavelength of the UV lamp is 185nm, UV light can effectively decompose oxygen molecules O2 in the air to generate ozone, which can work synergistically with the catalyst (such as titanium dioxide) in the photocatalytic device to improve the efficiency of degrading organic pollutants. Ozone can react with hydroxyl radicals (·OH) generated on the surface of the catalyst to generate more oxidizing substances, thereby accelerating the decomposition of organic matter;
[0029] At the same time, the wavelength of the UV lamp is 254nm, which can directly excite the electrons on the surface of the photocatalyst (such as titanium dioxide TiO2) to generate electron-hole pairs. These electrons and holes can further react with oxygen molecules in water or air to generate hydroxyl radicals (·OH) or superoxide radicals (·O2 - ); In addition to the photocatalytic effect, the 254nm ultraviolet light can also directly destroy the DNA structure of microorganisms, thereby achieving the purpose of sterilization and disinfection. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is an axonometric diagram of the automated UV photolysis and photocatalysis device in an embodiment of the utility model.
[0031] Figure 2 It is a front cross-sectional view of the automated UV photolysis photocatalytic device in an embodiment of the utility model. DETAILED DESCRIPTION
[0032] The following is further described in detail through specific implementation methods:
[0033] The figure marks in the drawings of the specification include: catalyst 1, air outlet pipe 2, UV lamp 3, tension spring 4, second filter plate 5, double helix catalyst carrier 7, air inlet pipe 9, fan blade 10, telescopic rod 11, rotating shaft 12, flow chamber 13, first filter plate 14, filter hole 15, catalyst chamber 16, baffle 17, flow through hole 18, purification chamber 19.
[0034] Example 1
[0035] Basically as attached Figure 1-Figure 2 As shown: an automated UV photolysis photocatalytic device, comprising a catalyst body 1, the top two ends of the catalyst body 1 are respectively connected with an inclined air inlet pipe 9 and an air outlet pipe 2, the air inlet pipe 9 and the air outlet pipe 2 are both provided with flow meters, the flow meter signals are connected with a controller, the inside of the catalyst body 1 is respectively provided with a first filter plate 14, a double helix catalyst carrier 7, and a second filter plate 5 from left to right, the two ends of the double helix catalyst carrier 7 are respectively arranged on the first filter plate 14 and the second filter plate 5, the first filter plate 14 and the second filter plate 5 are both provided with a plurality of filter holes 15; the air inlet pipe 9 and the air outlet pipe 2 are both bolted and fixedly connected with air amplifiers;
[0036] The first filter plate 14 is close to the air inlet pipe 9, the second filter plate 5 is close to the air outlet pipe 2, and a catalytic chamber 16 is opened between the first filter plate 14 and the second filter plate 5, and a purification chamber 19 is opened between the second filter plate 5 and the air outlet pipe 2. The top and bottom walls of the catalytic chamber 16 and the purification chamber 19 are both bolted and fixed with UV lamps 3. The two spiral sheets on the double-helix catalytic carrier 7 are respectively coated with a catalytic layer and a light reflecting layer, and the catalytic layer and the light reflecting layer are alternately arranged; the wavelengths of the UV lamps 3 in the catalytic chamber 16 and the purification chamber 19 are different, the wavelength of the UV lamps 3 in the catalytic chamber 16 is 185nm, and the wavelength of the UV lamps 3 in the purification chamber 19 is 254nm.
[0037] The specific implementation process is as follows: first, the exhaust gas is injected from the air intake pipe 9, and the gas is quickly injected into the catalyst body 1 under the action of the air amplifier. The gas passes through the first filter plate 14 to filter impurities, and the exhaust gas flows to the double-helix catalytic carrier 7. On the one hand, the light reflection layer can fully reflect the UV light at the top and bottom walls of the catalytic chamber 16 to the exhaust gas. The energy of the UV ultraviolet light turns the molecules in the air into free oxygen, and the free oxygen combines with the oxygen molecules to generate ozone with stronger oxidation ability, thereby destroying the molecular chain of organic or inorganic high molecular compounds and turning them into low molecular compounds, such as CO, HO, etc. At the same time, on the other hand, under the action of the combined catalyst, the decomposition movement can be strengthened, thereby achieving a full purification effect;
[0038] The gas then flows through the second filter plate 5 for another filtration. Because the UV lamp 3 in the purification chamber 19 has a different wavelength, the gas flowing into the purification chamber 19 can be subjected to the corresponding photocatalytic effect while directly destroying the DNA structure of the microorganism, thereby achieving the purpose of sterilization and disinfection, and further realizing the treatment of waste. The treated gas then flows out from the outlet pipe 2, wherein the flow meters in the inlet pipe 9 and the outlet pipe 2 can collect the output and input gas flow rates, and transmit the flow information to the controller, and the controller can appropriately adjust the operation of the equipment according to the gas flow rate.
[0039] Example 2
[0040] The difference from the above embodiment is that a flow cavity 13 is opened between the first filter plate 14 and the air intake pipe 9, a rotating shaft 12 is arranged in the flow cavity 13, one end of the rotating shaft 12 is fixedly connected with the double-helix catalyst carrier 7 by bolts, a telescopic rod 11 is welded to the other end of the rotating shaft 12, the other end of the telescopic rod 11 is rotatably connected with the inner wall of the catalyst body 1, and the two ends of the double-helix catalyst carrier 7 are rotatably connected with the first filter plate 14 and the second filter plate 5 respectively; the top wall and the bottom wall of the first filter plate 14 and the second filter plate 5 are only welded with a plurality of tension springs 4, and the other ends of the tension springs 4 are welded with the inner wall of the catalyst body 1;
[0041] A plurality of fan blades 10 are fixedly connected to the rotating shaft 12 by bolts, and the fan blades 10 are all located below the air intake duct 9 .
[0042] The specific implementation process is as follows: under the action of the air amplifier, the flow speed of the gas is accelerated, and the gas will flow through the fan blades 10. The fan blades 10 rotate under the action of the gas flow, the shaft 12 rotates, and the double-helix catalytic carrier 7 rotates under the drive. When the double-helix catalytic carrier 7 rotates, it can drive the tension spring 4 on the first filter plate 14 and the second filter plate 5 to move, so that the light reflection layer on the double-helix catalytic carrier 7 can continuously change the reflection angle, and then reflect UV light at different angles, so as to fully utilize UV light resources and make it fully contact with the exhaust gas, and the contact area between the catalytic layer and the exhaust gas can also be increased, thereby enhancing the catalytic effect, and the first filter plate 14 and the second filter plate 5 drive the double-helix catalytic carrier 7 to produce a corresponding up and down reciprocating action under this action, once again increasing the contact surface with the exhaust gas while extending the residence time of the exhaust gas in the catalytic body 1.
[0043] Example 3
[0044] The difference from the above embodiment is that a plurality of baffles 17 are provided in the purification chamber 19, the plurality of baffles 17 are combined to form a broken line shape, a plurality of flow holes 18 are provided on the baffles 17, and the flow holes 18 on different baffles 17 are staggered, and a catalytic layer is provided on the flow holes 18;
[0045] The connection points of the baffles 17 are all hinged, and the first baffle 17 is hinged to one side of the second filter plate 5, and the last baffle 17 is hinged to the inner wall of the catalyst body 1 and is located below the outlet pipe 2. The last baffle 17 is not provided with a flow through hole 18. The hinge points of the baffles 17 are all provided with sliders, and the inner wall of the catalyst body 1 is provided with corresponding slide grooves.
[0046] The specific implementation process is as follows: when the first filter plate 14 and the second filter plate 5 move to a certain extent under the action of the tension spring 4, the baffle 17 can be driven to move accordingly. At the same time, because a number of baffles 17 are hinged, all the baffles 17 can move horizontally or close to each other, thereby changing the flow path of the gas to a certain extent, thereby extending the time for the gas to stay in the catalyst 1, so that the exhaust gas can be fully decomposed;
[0047] The design of the baffle 17 further prolongs the flow time of the gas in the purification chamber 19, and because the gas needs to use the flow through hole 18 to flow to the gas outlet pipe 2, the gas needs to flow through the catalyst layer first, thereby achieving that the gas in the catalyst body 1 can be photocatalytically acted on, reducing the problem of insufficient catalysis;
[0048] Since the last baffle 17 is not provided with a flow through hole 18 and is located below the gas outlet pipe 2, it can play a certain guiding role and reduce the problem of part of the gas being retained at the four corners and not being fully output.
[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0050] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.
Claims
1. An automated UV photolysis and photocatalysis device, Features: The invention comprises a catalytic body, wherein the two ends of the top of the catalytic body are respectively provided with an inclined air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both provided with flow meters, the flow meter signals are connected with a controller, and the inside of the catalytic body is respectively provided with a first filter plate, a double-helix catalytic carrier, and a second filter plate from left to right, the two ends of the double-helix catalytic carrier are respectively provided on the first filter plate and the second filter plate, and the first filter plate and the second filter plate are both provided with a plurality of filter holes; The first filter plate is close to the air inlet pipe, the second filter plate is close to the air outlet pipe, and a catalytic chamber is provided between the first filter plate and the second filter plate, a purification chamber is provided between the second filter plate and the air outlet pipe, UV lamps are provided on the top and bottom walls of the catalytic chamber and the purification chamber, and the two spiral sheets on the double-helix catalytic carrier are respectively coated with a catalytic layer and a light reflecting layer, and the catalytic layer and the light reflecting layer are alternately arranged.
2. The automated UV photolysis photocatalytic device according to claim 1, Features: The top wall and the bottom wall of the first filter plate and the second filter plate are only provided with a plurality of tension springs, and the other ends of the tension springs are fixedly connected to the inner wall of the catalyst body.
3. The automated UV photolysis photocatalytic device according to claim 2, Features: Air amplifiers are provided in both the air inlet and outlet ducts.
4. The automated UV photolysis photocatalytic device according to claim 3, Features: A flow cavity is provided between the first filter plate and the air intake pipe, a rotating shaft is provided in the flow cavity, one end of the rotating shaft is fixedly connected to the double-helix catalytic carrier, the other end of the rotating shaft is fixedly connected to a telescopic rod, the other end of the telescopic rod is rotatably connected to the inner wall of the catalytic body, and the two ends of the double-helix catalytic carrier are rotatably connected to the first filter plate and the second filter plate respectively; A plurality of fan blades are fixedly connected to the rotating shaft, and the fan blades are all located below the air intake duct.
5. The automated UV photolysis photocatalytic device according to claim 4, Features: A plurality of baffles are arranged in the purification chamber, the plurality of baffles are combined to form a broken line shape, a plurality of flow holes are arranged on the baffles, and the flow holes on different baffles are all staggered, and a catalytic layer is arranged on the flow holes.
6. The automated UV photolysis photocatalytic device according to claim 5, Features: The connection points of the baffles are all hinged, and the first baffle is hinged to one side of the second filter plate, the last baffle is hinged to the inner wall of the catalyst body and is located below the outlet pipe, and the last baffle is not provided with a flow through hole.
7. The automated UV photolysis photocatalytic device according to claim 6, Features: The hinge points of several baffles are all provided with sliding blocks, and the inner wall of the catalyst body is all provided with corresponding sliding grooves.
8. The automated UV photolysis photocatalytic device according to claim 7, Features: The wavelengths of the UV lamps in the catalytic chamber and the purification chamber are different. The wavelength of the UV lamp in the catalytic chamber is 185nm, and the wavelength of the UV lamp in the purification chamber is 254nm.