A photocatalytic purification device for VOCs treatment

Abstract

The present invention discloses a photocatalytic purification device for VOCs treatment, comprising a photocatalytic mechanism, wherein the photocatalytic mechanism comprises a photocatalytic column, an intelligent distribution box is fixedly installed on the front side of the photocatalytic column, a ground-lifting leg is fixedly connected to the bottom side of the photocatalytic column, and an exhaust elbow is fixedly plugged on the bottom side of the photocatalytic column; a boost component can be driven to move by a driving component, and the exhaust gas can be compressed by the boost component, thereby increasing the concentration of VOCs, accelerating the decomposition speed of VOCs, and helping to further increase the exhaust gas treatment efficiency; the exhaust gas can be driven to circulate in a delay unit by a gain component, so that the exhaust gas circulates through a tubular catalyst carrier, and the exhaust gas is purified multiple times, which helps to increase the exhaust gas treatment quality; at the same time, the gain component can discharge the exhaust gas after it meets the standard, thereby ensuring that the exhaust gas is thoroughly purified and will not pollute the environment, thereby improving the practicability of the photocatalytic purification device for VOCs treatment.

Description

Technical Field

[0001] The present invention relates to the field of waste gas treatment equipment, and more specifically, to a photocatalytic purification device for VOCs treatment. Background Art

[0002] Photocatalytic oxidation is a new pollution control technology that has received increasing attention in recent years. The degradation rate of VOCs can reach 90%-95%. This technology refers to the use of the photocatalytic activity of the catalyst under a certain wavelength of light to cause the VOCs on the adsorbent's surface to undergo redox reactions, oxidizing organic matter into CO2, H2O and inorganic small molecules. Photocatalytic oxidation is selective, with mild reaction conditions, non-toxic catalysts, low energy consumption, simple operation, relatively low price, and no by-products. The used catalyst can be regenerated by physical and chemical methods and recycled, and it has the advantages of purifying almost all pollutants. Photocatalytic purification equipment for VOCs treatment is equipment that uses photocatalytic oxidation to treat organic waste gas.

[0003] The existing photocatalytic purification equipment for VOCs treatment is mainly composed of a sealed box, a filter, an air inlet and outlet pipes, etc., wherein ultraviolet lamps and catalyst carrier plates are alternately installed inside the sealed box. When in use, the exhaust gas is first pre-treated by a spray cooling device and then enters the sealed box at a set speed through the air inlet pipe, and then the filter removes the particulate matter in the exhaust gas. Then the exhaust gas flows in the gap between the ultraviolet lamp and the catalyst carrier plate to achieve a purification effect. After purification, the exhaust gas forms purified gas and is discharged through the air outlet pipe. However, the ultraviolet lamp and the catalyst carrier plate may malfunction during long-term use, and it is necessary to stop the machine to replace the ultraviolet lamp and the catalyst carrier plate, which reduces the exhaust gas treatment efficiency. Moreover, the organic matter content in the exhaust gas changes all the time, while the ability of the ultraviolet lamp and the catalyst carrier plate to decompose organic matter is fixed. When the organic matter content in the exhaust gas is high, there is a problem of incomplete purification, which will pollute the environment. At the same time, the filter will be blocked and frequent maintenance is required. Therefore, it is urgent to design a photocatalytic purification equipment for VOCs treatment. Summary of the invention

[0004] 1. Technical problems to be solved

[0005] The existing VOCs treatment photocatalytic purification equipment in the prior art is mainly composed of a sealed box, a filter, an air inlet and outlet pipes, etc., wherein ultraviolet lamps and catalyst carrier plates are alternately installed inside the sealed box. When in use, the exhaust gas is first pre-treated by a spray cooling device and then enters the sealed box at a set speed through the air inlet pipe, and then the filter removes the particulate matter in the exhaust gas. Then the exhaust gas flows in the gap between the ultraviolet lamp and the catalyst carrier plate to achieve a purification effect. After purification, the exhaust gas forms purified gas and is discharged through the air outlet pipe. However, the ultraviolet lamp and the catalyst carrier plate may fail during long-term use, and the ultraviolet lamp and the catalyst carrier plate need to be stopped for replacement, which reduces the exhaust gas treatment efficiency. Moreover, the organic matter content in the exhaust gas changes all the time, while the ability of the ultraviolet lamp and the catalyst carrier plate to decompose organic matter is fixed. When the organic matter content in the exhaust gas is high, there is a problem of incomplete purification, which will pollute the environment. At the same time, the filter will be blocked, requiring frequent maintenance. The purpose of the present invention is to provide a VOCs treatment photocatalytic purification equipment, which can well solve the problems raised in the background technology.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A photocatalytic purification device for VOCs treatment comprises a photocatalytic mechanism, wherein the photocatalytic mechanism comprises a photocatalytic column, an intelligent distribution box is fixedly installed on the front of the photocatalytic column, a ground-lifting leg is fixedly connected to the bottom surface of the photocatalytic column, an exhaust elbow is fixedly plugged on the bottom surface of the photocatalytic column, an exhaust gas inlet pipe is connected to the top surface of the photocatalytic column, a tubular catalyst carrier and an ultraviolet catalytic lamp are installed inside the photocatalytic column, a delay unit is arranged inside the photocatalytic column, the delay unit comprises eight delay column cavities, the eight delay column cavities are all opened inside the photocatalytic column and are evenly distributed around the central axis of the photocatalytic column, the tubular catalyst carrier is movably plugged inside the delay column cavity, the bottom end of the tubular catalyst carrier is in contact with the bottom surface of the inner cavity of the delay column cavity, a booster assembly is arranged inside the photocatalytic column, the booster assembly comprises four booster column cavities, the four booster column cavities are all opened inside the photocatalytic column, The interior of the column is evenly distributed around the central axis of the photocatalytic column, the boost column cavity is located on the inner side of the delay column cavity, a driving component is provided inside the photocatalytic column, the driving component includes a driving disc cavity, the driving disc cavity is opened inside the photocatalytic column, the driving disc cavity and the photocatalytic column share the central axis, the driving disc cavity is connected with four boost column cavities at the same time, a gain component is provided inside the photocatalytic column, the gain component includes an air collecting ring cavity, the air collecting ring cavity is opened inside the photocatalytic column and is located below the delay column cavity and the boost column cavity, a de-impurity component is provided on the top surface of the photocatalytic column, the de-impurity component includes a de-impurity boss, the de-impurity boss is fixedly connected to the top surface of the photocatalytic column, the de-impurity boss and the photocatalytic column share the central axis, a cleaning component is provided on the de-impurity boss, the cleaning component includes a sealing mask, the sealing mask is threadedly sleeved on the top of the de-impurity boss, and the top of the sealing mask is connected to the exhaust gas inlet pipe.

[0009] Preferably, the delay unit also includes a mounting socket, which is provided on the top surface of the inner cavity of the delay column cavity, the top of the mounting socket is open and the opening is provided on the top surface of the photocatalytic column, the inner wall of the mounting socket is provided with an embedding groove located at its top, the top of the embedding groove is open and the opening is provided on the top surface of the photocatalytic column, a sealing pad is embedded in the interior of the embedding groove, the sealing pad is fixed to the interior of the embedding groove by bolts, the tubular catalyst carrier is slidably inserted into the interior of the mounting socket, the top of the tubular catalyst carrier is in contact and connected with the bottom surface of the sealing pad, the ultraviolet catalytic lamp passes through the sealing pad and is movably inserted into the interior of the tubular catalyst carrier, the ultraviolet catalytic lamp is threadedly matched with the sealing pad, and the delay unit also includes eight touch-pressure switches, the eight touch-pressure switches are all fixedly inserted on the side of the photocatalytic column and located at its top and evenly distributed, and the eight touch-pressure switches correspond one-to-one to the eight delay column cavities.

[0010] Preferably, the boost component also includes an input annular cavity, which is opened inside the impurity removal boss and located at its bottom end, the input annular cavity and the impurity removal boss share a central axis, four suction check valves are fixedly inserted on the bottom surface of the inner cavity of the input annular cavity, the four suction check valves correspond to the four boost column cavities one by one, and the bottom ends of the suction check valves extend to the inside of the boost column cavity, the boost component also includes a lifting spring, which is movably inserted in the inside of the boost column cavity, and the bottom surface of the inner cavity of the boost column cavity is connected to a lifting lower piston through the lifting spring transmission, the lifting lower piston is slidably inserted in the inside of the boost column cavity, a lifting air pipe is fixedly inserted on the lifting lower piston, the bottom end of the lifting air pipe passes through the lifting lower piston, the top of the lifting air pipe is fixedly sleeved with a lifting upper piston, and the lifting The lifting piston is slidably inserted into the interior of the boosting column cavity, the driving disc cavity is located between the lifting lower piston and the lifting upper piston, a gas supply one-way valve is fixedly inserted on the top surface of the lifting upper piston, the gas supply one-way valve is connected to the lifting air pipe, and an output one-way valve is fixedly inserted on the bottom surface of the inner cavity of the boosting column cavity. The boosting component also includes an annular transfer cavity, which is opened in the interior of the photocatalytic column and located below the boosting column cavity. The bottom end of the output one-way valve extends to the interior of the annular transfer cavity, a pressure detection head is fixedly inserted on the inner side surface of the inner cavity of the annular transfer cavity, and a diversion air pipe is fixedly inserted on the outer side surface of the inner cavity of the annular transfer cavity. There are eight diversion air pipes, and the eight diversion air pipes correspond one-to-one to the eight delay column cavities. An electromagnetic air valve is installed on the diversion air pipe.

[0011] Preferably, the driving component also includes a driving disc, which is movably inserted into the interior of the driving disc cavity, and the exterior of the driving disc is fixedly sleeved with a pressure circle located on the top thereof, and the pressure circle is movably inserted into the interior of the driving disc cavity, and two slope convex plates are fixedly connected to the bottom surface of the pressure circle, and the two slope convex plates are evenly distributed on the bottom surface of the pressure circle, and the slope convex plates are fixedly connected to the surface of the driving disc. The driving component also includes a pressure-bearing end plate, which is fixedly connected to the surface of the jacking air pipe, and a pressure-bearing steel ball is movably embedded on the pressure-bearing end plate, and the pressure-bearing steel ball is in contact with and connected to the bottom surface of the pressure circle and is adapted to the slope convex plate. A driving long shaft is fixedly inserted into the driving disc, and the top end of the driving long shaft is movably inserted into the top surface of the inner cavity of the driving disc cavity, and the bottom end of the driving long shaft extends from the bottom surface of the photocatalytic column and is fixedly connected to a driving motor, and a mounting cylinder is fixedly installed on the driving motor, and the mounting cylinder is fixedly inserted into the bottom surface of the photocatalytic column, and a heat dissipation hole located below the photocatalytic column is opened on the surface of the mounting cylinder.

[0012] Preferably, the gain component also includes a ventilation column cavity, which is opened inside the photocatalytic column and located below the delay column cavity. The number of ventilation column cavities is eight, and the eight ventilation column cavities correspond to the eight delay column cavities one by one. The ventilation column cavity is connected to the diversion air pipe. A ventilation through hole is opened on the top surface of the inner cavity of the ventilation column cavity, and the ventilation through hole is connected to the delay column cavity. A gas detection head is fixedly inserted on the bottom surface of the inner cavity of the ventilation column cavity, and the bottom end of the gas detection head extends to the interior of the gas collection ring cavity. A clean air pipe is fixedly inserted on the bottom surface of the inner cavity of the ventilation column cavity, and the bottom end of the clean air pipe extends to the interior of the gas collection ring cavity. An electromagnetic clean air valve is installed at the bottom end of the clean air pipe, and a pressure sensing head is inserted on the pipeline of the clean air pipe. The gain component also includes a compartment shell, which is located inside the gas collection ring cavity and fixedly connected to its inner cavity. On the top surface, the driving long shaft passes through the compartment shell, and the top end of the mounting cylinder is fixedly connected to the bottom surface of the compartment shell. A transmission gear is provided inside the compartment shell, and the transmission gear is fixedly sleeved on the outside of the driving long shaft. An air guide cone is fixedly connected to the bottom surface of the inner cavity of the ventilation column cavity, and a lifting force arm is fixedly connected to the surface of the air guide cone, and a fixed short tube is fixedly connected to the top of the lifting force arm. The top end of the fixed short tube is fixedly inserted on the top surface of the inner cavity of the ventilation column cavity and extends to the interior of the delay column cavity. The tubular catalyst carrier is movably sleeved on the outside of the fixed short tube, and a linkage short shaft is movably inserted on the air guide cone, and the bottom end of the linkage short shaft extends to the interior of the compartment shell and is fixedly connected to a driven gear, which is meshed with the transmission gear, and the top end of the linkage short shaft extends to the interior of the fixed short tube and is fixedly sleeved with a driving blade.

[0013] Preferably, the impurity removal component also includes an impurity removal groove, which is arranged on the top surface of the impurity removal boss, and a constant pressure groove located in the middle is arranged on the bottom surface of the inner cavity of the impurity removal groove, and a constant pressure through hole is arranged on the inner wall of the constant pressure groove, and the constant pressure through hole is communicated with the input ring cavity, and the top end of the driving long shaft passes through the constant pressure groove and the impurity removal groove, and a mounting sleeve is movably inserted in the interior of the impurity removal groove, and the mounting sleeve is sleeved on the top end of the driving long shaft and fixed by bolts, and a filter housing is fixedly sleeved on the outside of the mounting sleeve, and the bottom end of the filter housing is movably inserted in the interior of the constant pressure groove, and the filter housing A reinforcing diagonal brace is fixedly connected to the inner wall, and the other end of the reinforcing diagonal brace is fixedly connected to the surface of the mounting sleeve. A plurality of socket grooves are provided on the bottom surface of the inner cavity of the impurity removing groove, and the plurality of socket grooves surround the constant pressure groove. One end of the socket groove is open and the opening is provided on the side surface of the impurity removing boss. A sealing plug is movably inserted into the interior of the socket groove, and a gathering groove is provided on the top surface of the sealing plug. A magnetic sealing plate is fixedly connected to the end of the sealing block, and the magnetic sealing plate is magnetically attracted to the surface of the impurity removing boss. A pulling handle is fixedly connected to the side surface of the magnetic sealing plate.

[0014] Preferably, the cleaning assembly also includes a stop diagonal brace, which is fixedly connected to the inner wall of the sealing cover, and the other end of the stop diagonal brace is fixedly connected to a positioning column, and a diverter cone is fixedly connected to the top surface of the positioning column, and the top of the diverter cone extends to the interior of the exhaust gas inlet pipe, and a accommodating groove is provided on the bottom surface of the positioning column, and a stop sliding hole is provided on the inner wall of the accommodating groove, and a counterweight sleeve is slidably inserted in the interior of the accommodating groove, and a stop wing piece is fixedly connected to the surface of the counterweight sleeve, and the stop wing piece is slidably inserted in the interior of the stop sliding hole, and the bottom end of the counterweight sleeve is slidably sleeved on the outside of the mounting sleeve, and a counterweight cross brace located at its bottom end is fixedly connected to the surface of the counterweight cross brace, and a mounting vertical rod is fixedly connected to the bottom surface of the counterweight cross brace, and a long brush is fixedly connected to the bottom end of the mounting vertical rod, and the long brush is adapted to the filter housing.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. Through the delay unit, people can replace the tubular catalyst carrier and the ultraviolet catalytic lamp without stopping the VOCs treatment photocatalytic purification equipment, which helps to increase the exhaust gas treatment efficiency. The driving component can drive the booster component to operate, and the booster component can compress the exhaust gas, which has the effect of increasing the VOCs concentration and accelerating the decomposition of VOCs, which helps to further increase the exhaust gas treatment efficiency. The gain component can drive the exhaust gas to circulate inside the delay unit, so that the exhaust gas circulates through the tubular catalyst carrier and purifies the exhaust gas multiple times, which helps to increase the exhaust gas treatment quality. At the same time, the gain component can discharge the exhaust gas after it meets the standard, ensuring that the exhaust gas is thoroughly purified and will not pollute the environment, thereby improving the practicality of the VOCs treatment photocatalytic purification equipment.

[0018] 2. The impurity removal component can filter the exhaust gas so that the particulate matter in the exhaust gas will not affect the photocatalytic purification work. The driving component can rotate the impurity removal component so that the particulate matter trapped on the impurity removal component can be detached under the action of centrifugal force, avoiding the blockage of the impurity removal component and reducing the maintenance frequency. At the same time, people can transfer the particulate matter collected by the impurity removal component without stopping the machine, which helps to increase the exhaust gas treatment efficiency. The cleaning component can brush off the attached impurities on the impurity removal component to ensure that the impurity removal component can function normally, thereby improving the practicality of the photocatalytic purification equipment for VOCs treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the internal structure;

[0021] Figure 3 For the present invention Figure 2 Sectional view at AA in the middle;

[0022] Figure 4 For the present invention Figure 2 Schematic diagram of the internal structure of the cleaning component;

[0023] Figure 5 For the present invention Figure 2 Schematic diagram of the internal structure of the impurity removal component;

[0024] Figure 6 For the present invention Figure 2 Schematic diagram of the internal structure of the medium boost component.

[0025] Description of the numbers in the figure:

[0026] 1. Photocatalytic mechanism; 11. Photocatalytic column; 12. Intelligent distribution box; 13. Ground support legs; 14. Exhaust elbow; 15. Exhaust gas inlet pipe; 16. Tubular catalyst carrier; 17. Ultraviolet catalytic lamp; 2. Delay unit; 21. Delay column cavity; 22. Installation jack; 23. Embedded groove; 24. Sealing pad; 25. Touch switch; 3. Boosting assembly; 301. Input ring cavity; 302. Intake check valve; 303. Boosting column cavity; 304. Lifting spring; 305. Lifting lower piston; 306. Lifting air pipe; 307, lifting piston; 308, gas delivery check valve; 309, output check valve; 310, annular transfer chamber; 311, pressure detection head; 312, diverter air pipe; 313, solenoid valve; 4, driving component; 40, heat dissipation hole; 41, driving disc cavity; 42, driving disc; 43, pressure circle; 44, slope convex plate; 45, pressure end plate; 46, pressure steel ball; 47, driving long shaft; 48, driving motor; 49, installation cylinder; 5, gain component; 501, gas ring cavity; 502, ventilation column cavity; 503, ventilation through hole; 504, gas detection head; 505, clean air pipe; 506, electromagnetic clean air valve; 507, pressure sensing head; 508, compartment shell; 509, transmission gear; 510, gas guide cone; 511, lifting arm; 512, fixed short pipe; 513, linkage short shaft; 514, driven gear; 515, driving blade; 6, impurity removal component; 601, impurity removal boss; 602, impurity removal groove; 603, constant pressure groove; 604, constant pressure through hole; 605, Install sleeve; 606, filter housing; 607, reinforcing diagonal brace; 608, socket groove; 609, plugging block; 610, gathering groove; 611, magnetic sealing plate; 612, pulling handle; 7, cleaning assembly; 701, sealing cover; 702, stop diagonal brace; 703, positioning column; 704, diverter cone; 705, accommodating groove; 706, anti-rotation sliding hole; 707, counterweight sleeve; 708, anti-rotation wing; 709, counterweight cross brace; 710, install vertical rod; 711, long brush. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0028] A photocatalytic purification device for VOCs treatment, comprising a photocatalytic mechanism 1, see Figure 1The photocatalytic mechanism 1 includes a photocatalytic column 11, an intelligent distribution box 12 is fixedly installed on the front of the photocatalytic column 11, a ground-lifting leg 13 is fixedly connected to the bottom of the photocatalytic column 11, an exhaust elbow 14 is fixedly plugged on the bottom of the photocatalytic column 11, and an exhaust gas inlet pipe 15 is connected to the top of the photocatalytic column 11. Please refer to Figure 2 The photocatalytic column 11 is provided with a tubular catalyst carrier 16 and an ultraviolet catalytic lamp 17. The photocatalytic column 11 is provided with a delay unit 2. Figure 3 The delay unit 2 includes eight delay column cavities 21, which are all opened inside the photocatalytic column 11 and evenly distributed around the central axis of the photocatalytic column 11. Figure 2 The tubular catalyst carrier 16 is movably inserted into the interior of the time-delay column cavity 21, and the bottom end of the tubular catalyst carrier 16 is in contact with the bottom surface of the inner cavity of the time-delay column cavity 21. The interior of the photocatalytic column 11 is provided with a booster assembly 3, see Figure 3 The booster assembly 3 includes four booster column cavities 303, which are all opened inside the photocatalytic column 11 and evenly distributed around the central axis of the photocatalytic column 11. The booster column cavity 303 is located on the inner side of the delay column cavity 21. Please refer to Figure 2 The photocatalytic column 11 is provided with a driving component 4, see Figure 6 The driving component 4 includes a driving disc cavity 41, which is opened inside the photocatalytic column 11. The driving disc cavity 41 and the photocatalytic column 11 share a central axis. The driving disc cavity 41 is connected to the four boost column cavities 303 at the same time. Please refer to Figure 2 The photocatalytic column 11 is provided with a gain component 5 inside, and the gain component 5 includes a gas collecting ring cavity 501, which is opened inside the photocatalytic column 11 and is located below the delay column cavity 21 and the boost column cavity 303. The top surface of the photocatalytic column 11 is provided with an impurity removal component 6, please refer to Figure 5 The impurity removal component 6 includes an impurity removal boss 601, which is fixedly connected to the top surface of the photocatalytic column 11. The impurity removal boss 601 and the photocatalytic column 11 share a central axis. Figure 2 , a cleaning assembly 7 is provided on the impurity removal boss 601, see Figure 4 The cleaning component 7 includes a sealing cover 701, which is threadedly sleeved on the top of the impurity removal boss 601, and the top of the sealing cover 701 is connected to the exhaust gas inlet pipe 15, so as to purify the exhaust gas in a photocatalytic environment.

[0029] See also Figure 2The delay unit 2 also includes a mounting socket 22, which is provided on the top surface of the inner cavity of the delay column cavity 21, and the top of the mounting socket 22 is open and the opening is provided on the top surface of the photocatalytic column 11. The inner wall of the mounting socket 22 is provided with an embedding groove 23 located at the top thereof, and the top of the embedding groove 23 is open and the opening is provided on the top surface of the photocatalytic column 11. A blocking pad 24 is embedded in the embedding groove 23, and the blocking pad 24 is fixed to the inside of the embedding groove 23 by bolts. The tubular catalyst carrier 16 is slidably plugged into the inside of the mounting socket 22, and the top of the tubular catalyst carrier 16 is connected to the sealing pad 24. The bottom surface of the blocking pad 24 is in contact connection, the ultraviolet catalytic lamp 17 penetrates the blocking pad 24 and is movably inserted into the interior of the tubular catalyst carrier 16, the ultraviolet catalytic lamp 17 is threadedly matched with the blocking pad 24, and the delay unit 2 also includes eight touch-pressure switches 25, the eight touch-pressure switches 25 are fixedly inserted on the side of the photocatalytic column 11 and are located on the top and are evenly distributed, the eight touch-pressure switches 25 correspond one by one to the eight delay column cavities 21, so that people can replace the tubular catalyst carrier 16 and the ultraviolet catalytic lamp 17 without stopping the photocatalytic purification equipment for VOCs treatment, which helps to increase the exhaust gas treatment efficiency.

[0030] See also Figure 6The booster assembly 3 also includes an input ring cavity 301, which is opened inside the impurity removal boss 601 and located at its bottom. The input ring cavity 301 and the impurity removal boss 601 share a central axis. Four air suction check valves 302 are fixedly plugged on the bottom surface of the inner cavity of the input ring cavity 301. The four air suction check valves 302 correspond to the four booster column cavities 303 one by one. The bottom end of the air suction check valve 302 extends to the inside of the booster column cavity 303. The booster assembly 3 also includes a lifting spring 304, which is movable. Inserted in the inside of the boost column cavity 303, the bottom surface of the inner cavity of the boost column cavity 303 is connected with a lifting lower piston 305 through a lifting spring 304, the lifting lower piston 305 is slidably inserted in the inside of the boost column cavity 303, and a lifting air pipe 306 is fixedly inserted on the lifting lower piston 305, the bottom end of the lifting air pipe 306 passes through the lifting lower piston 305, and the top of the lifting air pipe 306 is fixedly sleeved with a lifting upper piston 307, and the lifting upper piston 307 is slidably inserted in the inside of the boost column cavity 303, driving the disc cavity 4 1 is located between the lifting lower piston 305 and the lifting upper piston 307, a gas delivery check valve 308 is fixedly inserted on the top surface of the lifting upper piston 307, and the gas delivery check valve 308 is communicated with the lifting gas pipe 306, an output check valve 309 is fixedly inserted on the bottom surface of the inner cavity of the boost column cavity 303, and the boosting component 3 also includes an annular transfer cavity 310, which is opened inside the photocatalytic column 11 and located below the boost column cavity 303, and the bottom end of the output check valve 309 extends to the annular transfer cavity 310 Inside, a pressure detection head 311 is fixedly connected to the inner side surface of the inner cavity of the annular transfer chamber 310, and a diversion air pipe 312 is fixedly connected to the outer side surface of the inner cavity of the annular transfer chamber 310. The number of the diversion air pipes 312 is eight, and the eight diversion air pipes 312 correspond to the eight delay column cavities 21 one by one. An electromagnetic air valve 313 is installed on the diversion air pipe 312 to compress the exhaust gas, thereby increasing the concentration of VOCs, accelerating the decomposition of VOCs, and helping to further increase the exhaust gas treatment efficiency.

[0031] See also Figure 6The driving component 4 also includes a driving disc 42, which is movably inserted into the interior of the driving disc cavity 41. The outside of the driving disc 42 is fixedly sleeved with a pressure circle 43 located on the top thereof, and the pressure circle 43 is movably inserted into the interior of the driving disc cavity 41. Two slope convex plates 44 are fixedly connected to the bottom surface of the pressure circle 43, and the two slope convex plates 44 are evenly distributed on the bottom surface of the pressure circle 43. The slope convex plates 44 are fixedly connected to the surface of the driving disc 42. The driving component 4 also includes a pressure-bearing end plate 45, which is fixedly connected to the surface of the jacking air pipe 306. A pressure-bearing steel ball 46 is movably embedded on the pressure-bearing end plate 45. The pressure-bearing steel ball 46 is in contact with the bottom surface of the pressure circle 43 and is adapted to the slope convex plates 44. A driving long shaft 47 is fixedly inserted into the driving disc 42, and the top end of the driving long shaft 47 is movably inserted into the top surface of the inner cavity of the driving disc cavity 41. Please refer to Figure 2 The bottom end of the driving shaft 47 extends from the bottom surface of the photocatalytic column 11 and is fixedly connected to a driving motor 48. The intelligent distribution box 12 can control the power of the driving motor 48 so that there is always a delay column cavity 21 that is vacant. A mounting cylinder 49 is fixedly installed on the driving motor 48. The mounting cylinder 49 is fixedly plugged into the bottom surface of the photocatalytic column 11. A heat dissipation hole 40 is provided on the surface of the mounting cylinder 49, which is located below the photocatalytic column 11 and is used to drive the booster assembly 3 to reciprocate.

[0032] See also Figure 2The gain component 5 also includes a ventilation column cavity 502, which is opened inside the photocatalytic column 11 and is located below the delay column cavity 21. The number of ventilation column cavities 502 is eight, and the eight ventilation column cavities 502 correspond to the eight delay column cavities 21 one by one. The ventilation column cavity 502 is connected to the shunt gas pipe 312. A ventilation through hole 503 is opened on the top surface of the inner cavity of the ventilation column cavity 502, and the ventilation through hole 503 is connected to the delay column cavity 21. A gas detection head 504 is fixedly plugged on the bottom surface of the inner cavity of the ventilation column cavity 502, and the bottom end of the gas detection head 504 extends to the inside of the gas collection ring cavity 501. A clean air pipe 505 is fixedly connected to the bottom surface of the inner cavity of the ventilation column cavity 502, and the bottom end of the clean air pipe 505 extends to the interior of the air collecting ring cavity 501. An electromagnetic clean air valve 506 is installed at the bottom end of the clean air pipe 505. A pressure sensing head 507 is plugged into the pipeline of the clean air pipe 505. The gain component 5 also includes a cavity shell 508, which is located inside the air collecting ring cavity 501 and fixedly connected to the top surface of its inner cavity. The driving long shaft 47 passes through the cavity shell 508, and the top end of the installation cylinder 49 is fixedly connected to the bottom surface of the cavity shell 508. The interior of the cavity shell 508 is provided with a transmission gear 5 09, the transmission gear 509 is fixedly sleeved on the outside of the driving long shaft 47, the bottom surface of the inner cavity of the ventilation column cavity 502 is fixedly connected with a gas guide cone 510, the surface of the gas guide cone 510 is fixedly connected with a lifting arm 511, the top of the lifting arm 511 is fixedly connected with a fixed short tube 512, the top of the fixed short tube 512 is fixedly inserted on the top surface of the inner cavity of the ventilation column cavity 502 and extends to the inside of the delay column cavity 21, the tubular catalyst carrier 16 is movably sleeved on the outside of the fixed short tube 512, the gas guide cone 510 is movably inserted with a linkage short shaft 513, and the bottom end of the linkage short shaft 513 extends A driven gear 514 is fixedly connected to the interior of the compartment shell 508, and the driven gear 514 is meshed with the transmission gear 509. The top end of the linkage short shaft 513 extends to the interior of the fixed short tube 512 and is fixedly sleeved with a driving blade 515, which is used to drive the exhaust gas to circulate inside the delay unit 2, so that the exhaust gas circulates through the tubular catalyst carrier 16, and purifies the exhaust gas multiple times, which helps to increase the quality of exhaust gas treatment. At the same time, the gain component 5 can discharge the exhaust gas after it meets the standards, ensuring that the exhaust gas is thoroughly purified and will not pollute the environment, thereby improving the practicality of the photocatalytic purification equipment for VOCs control.

[0033] See also Figure 5 The impurity removal component 6 also includes an impurity removal groove 602, which is provided on the top surface of the impurity removal boss 601. The bottom surface of the inner cavity of the impurity removal groove 602 is provided with a constant pressure groove 603 located in the middle thereof. Figure 6 A constant pressure through hole 604 is provided on the inner wall of the constant pressure groove 603, and the constant pressure through hole 604 is connected to the input ring cavity 301, see Figure 5The top of the driving long shaft 47 passes through the constant pressure groove 603 and the impurity removal groove 602. The interior of the impurity removal groove 602 is movably connected with a mounting sleeve 605. The mounting sleeve 605 is sleeved on the top of the driving long shaft 47 and fixed by bolts. The outside of the mounting sleeve 605 is fixedly sleeved with a filter housing 606 to filter the exhaust gas so that the particulate matter in the exhaust gas will not affect the photocatalytic purification work. The bottom end of the filter housing 606 is movably inserted into the interior of the constant pressure groove 603. A reinforcing diagonal brace 607 is fixedly connected to the inner wall of the filter housing 606. The other end of the reinforcing diagonal brace 607 is fixedly connected to the surface of the mounting sleeve 605. A plurality of socket grooves 608 are provided on the bottom surface of the inner cavity of the impurity removal groove 602. The plurality of socket grooves 608 surround the constant pressure groove 603. Around the groove 603, one end of the socket groove 608 is open and the opening is provided on the side of the impurity removal boss 601. A sealing plug 609 is movably inserted inside the socket groove 608. A gathering groove 610 is provided on the top surface of the sealing plug 609. A magnetic sealing plate 611 is fixedly connected to the end of the sealing plug 609. The magnetic sealing plate 611 is magnetically attracted to the surface of the impurity removal boss 601. A pulling handle 612 is fixedly connected to the side of the magnetic sealing plate 611, so that the particles trapped on the impurity removal component 6 can be detached under the action of centrifugal force, so as to avoid the impurity removal component 6 from being blocked and reduce the maintenance frequency. At the same time, people can transfer the particles collected by the impurity removal component 6 without stopping the machine, which helps to increase the exhaust gas treatment efficiency.

[0034] See also Figure 4 The cleaning assembly 7 also includes a stop brace 702, which is fixedly connected to the inner wall of the sealing cover 701, and the other end of the stop brace 702 is fixedly connected to a positioning column 703, and a diverter cone 704 is fixedly connected to the top surface of the positioning column 703, and the top of the diverter cone 704 extends to the inside of the exhaust gas inlet pipe 15. An accommodating groove 705 is provided on the bottom surface of the positioning column 703, and a stop sliding hole 706 is provided on the inner wall of the accommodating groove 705. A counterweight sleeve 707 is slidably inserted in the interior of the accommodating groove 705, and a stop wing 70 is fixedly connected to the surface of the counterweight sleeve 707. 8. The anti-rotation wing piece 708 is slidably inserted into the anti-rotation sliding hole 706, and the bottom end of the counterweight sleeve 707 is slidably sleeved on the outside of the mounting sleeve 605. The surface of the counterweight sleeve 707 is fixedly connected with a counterweight cross brace 709 located at its bottom end, and the bottom surface of the counterweight cross brace 709 is fixedly connected with a mounting vertical rod 710, and the bottom end of the mounting vertical rod 710 is fixedly connected with a long brush 711, which is matched with the filter housing 606 to brush off the attached impurities on the impurity removal component 6, thereby ensuring that the impurity removal component 6 can function normally, thereby improving the practicability of the photocatalytic purification equipment for VOCs treatment.

[0035] Working principle:

[0036] First, the VOCs treatment photocatalytic purification equipment is turned on through the intelligent distribution box 12, and then the intelligent distribution box 12 controls the driving motor 48 to run, and at the same time the intelligent distribution box 12 controls the ultraviolet catalytic lamp 17 to emit ultraviolet light, and then the driving motor 48 drives the driving long shaft 47 to rotate, and then the driving long shaft 47 drives the transmission gear 509 to rotate, and then the transmission gear 509 drives the linkage short shaft 513 to rotate through the meshing action between it and the driven gear 514, and then the linkage short shaft 513 drives the driving blade 515 to rotate, and then the gas inside the delay column cavity 21 located outside the tubular catalyst carrier 16 passes through the ventilation through hole 503 under the drive of the driving blade 515 into the ventilation column cavity 502 and passes through the fixed short tube 512 into the tubular catalyst carrier 16. The inner side of the catalyst carrier 16 and passes through the holes on the tubular catalyst carrier 16 to flow back to the outer cavity of the tubular catalyst carrier 16, so that the gas circulates through the holes on the tubular catalyst carrier 16, and then drives the long shaft 47 to rotate with the driving disc 42, and then drives the disc 42 to rotate with the pressure circle 43, and then the pressure circle 43 rotates with the slope convex plate 44, and then the pressure-bearing steel ball 46 slides from the bottom surface of the pressure circle 43 to the slope of the slope convex plate 44, and then the slope of the slope convex plate 44 applies downward pressure to the pressure-bearing steel ball 46, and then the pressure-bearing steel ball 46 moves downward with the pressure-bearing end plate 45, and then the pressure-bearing end plate 45 moves downward with the lifting air pipe 306, and then the lifting air pipe 306 lifts the lower piston 305 and the upper piston 307 moves downward, and then the lifting piston 305 squeezes the lifting spring 304. The lifting spring 304 is elastically compressed, and the elastic potential energy increases. At the same time, the lifting piston 305 squeezes the cavity below it. Then, the gas in the cavity below the lifting piston 305 enters the annular transfer cavity 310 through the output one-way valve 309 under the action of pressure, so that the internal air pressure of the annular transfer cavity 310 increases. At the same time, the lifting piston 307 moves downward to reduce the air pressure in the cavity above it. Then, the exhaust gas passes through the exhaust gas inlet pipe 15, the sealing mask 701, the impurity removal groove 602, the filter housing 606, the constant pressure groove 603, the constant pressure through hole 604, and the corresponding suction one-way valve 302 of the input annular cavity 301 driven by the pressure difference and enters the boost column cavity. The inner cavity of 303 is located above the lifting upper piston 307, and then the pressure-bearing steel ball 46 passes over the lowest point on the slope convex plate 44 and slides from the slope surface of the slope convex plate 44 to the bottom surface of the pressure circle 43, and then the lifting lower piston 305 moves upward with the lifting upper piston 307 through the lifting air pipe 306 under the action of the elastic force of the lifting spring 304, and then the gas in the cavity above the lifting upper piston 307 flows through the gas delivery one-way valve 308 and the lifting air pipe 306 to the cavity below the lifting lower piston 305 in the boost column cavity 303 under the action of the squeezing of the lifting upper piston 307, and the process is repeated to pump the exhaust gas into the inner cavity of the annular transfer cavity 310. In this process, the particulate matter in the exhaust gas is intercepted by the filter housing 606.Then, the driving shaft 47 rotates with the filter housing 606 through the installation sleeve 605, and then the filter housing 606 rotates with the particles, and then the particles are thrown out under the action of centrifugal force and fall into the inside of the gathering groove 610, and then the counterweight sleeve 707 applies pressure to the long brush 711 through the counterweight cross brace 709 and the installation vertical rod 710 under the action of gravity, and then the long brush 711 is pressed on the surface of the filter housing 606 and slides relatively, and then the long brush 711 cleans the surface of the filter housing 606 to brush off the particles on the surface of the filter housing 606 to prevent the holes on the filter housing 606 from being blocked, and then the intelligent distribution box 12 detects the air pressure inside the annular transfer chamber 310 through the pressure detection head 311, and then When the air pressure inside the cavity 310 reaches the preset value inside the intelligent distribution box 12, the intelligent distribution box 12 controls the first electromagnetic valve 313 to open, and then the gas inside the annular transfer cavity 310 enters the ventilation column cavity 502 through the shunt gas pipe 312 driven by the pressure difference, and then these gases circulate under the drive of the driving blade 515, and the tubular catalyst carrier 16 performs photocatalytic oxidation on the organic matter in these gases under the irradiation of the ultraviolet catalytic lamp 17 to achieve the purification effect, and then the intelligent distribution box 12 detects the air pressure inside the delay column cavity 21 through the pressure sensing head 507. When this air pressure value reaches the preset value inside the intelligent distribution box 12, the intelligent distribution box 12 controls the previously opened electromagnetic valve 313 to close and controls the adjacent electromagnetic valve in the counterclockwise direction. 313 is opened, and then the gas inside the annular transfer chamber 310 enters the second ventilation column chamber 502 driven by the pressure difference, and this is repeated. The gas inside the annular transfer chamber 310 is injected into the corresponding ventilation column chamber 502 in a counterclockwise direction under the control of the intelligent distribution box 12 and circulates in the corresponding delay column chamber 21. After that, the intelligent distribution box 12 detects the VOCs content in the gas inside the corresponding ventilation column chamber 502 and the delay column chamber 21 in real time through the gas detection head 504. When the VOCs content reaches the preset value inside the intelligent distribution box 12, the intelligent distribution box 12 controls the corresponding electromagnetic clean air valve 506 to open, and then the qualified gas inside the delay column chamber 21 and the ventilation column chamber 502 enters the gas collection ring chamber 501 through the clean air pipe 505 and passes through The exhaust elbow 14 is discharged, and then the intelligent distribution box 12 detects through the pressure sensing head 507 that the air pressure inside the ventilation column cavity 502 and the delay column cavity 21 reaches the preset value, and the intelligent distribution box 12 controls the electromagnetic clean air valve 506 to close. During long-term use, when the tubular catalyst carrier 16 or the ultraviolet catalytic lamp 17 fails, press the touch switch 25, and then the intelligent distribution box 12 receives the information of the corresponding touch switch 25 and controls the corresponding electromagnetic air valve 313 and electromagnetic clean air valve 506 to close, so as to manually close the corresponding electromagnetic air valve 313 and electromagnetic clean air valve 506, and disconnect the control of the intelligent distribution box 12 on the corresponding electromagnetic air valve 313 and electromagnetic clean air valve 506, and then remove the ultraviolet catalytic lamp 17 and replace it.Then, remove the plugging pad 24, remove the tubular catalyst carrier 16 and replace it, then install the tubular catalyst carrier 16, the plugging pad 24 and the ultraviolet catalytic lamp 17 back to their original positions, and then press the touch switch 25 again. Then, the intelligent distribution box 12 receives the information of the touch switch 25 and resumes the control of the electromagnetic gas valve 313 and the electromagnetic clean air valve 506.

[0037] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A photocatalytic purification device for VOCs treatment, comprising a photocatalytic mechanism (1), characterized in that: The photocatalytic mechanism (1) comprises a photocatalytic column (11), an intelligent distribution box (12) is fixedly installed on the front of the photocatalytic column (11), a ground-lifting leg (13) is fixedly connected to the bottom of the photocatalytic column (11), an exhaust elbow (14) is fixedly plugged into the bottom of the photocatalytic column (11), an exhaust gas inlet pipe (15) is connected to the top of the photocatalytic column (11), a tubular catalyst carrier (16) and an ultraviolet catalytic lamp (17) are installed inside the photocatalytic column (11), and a delay unit (2) is arranged inside the photocatalytic column (11), wherein the delay unit (2) comprises eight delay column cavities (21 ), eight time-delay column cavities (21) are all opened inside the photocatalytic column (11) and are evenly distributed around the central axis of the photocatalytic column (11), a tubular catalyst carrier (16) is movably inserted inside the time-delay column cavity (21), the bottom end of the tubular catalyst carrier (16) is in contact with the bottom surface of the inner cavity of the time-delay column cavity (21), a booster component (3) is provided inside the photocatalytic column (11), the booster component (3) includes four booster column cavities (303), the four booster column cavities (303) are all opened inside the photocatalytic column (11) and are evenly distributed around the central axis of the photocatalytic column (11), the booster column cavity (303) is located in the inner direction of the time-delay column cavity (21), a driving component (4) is provided inside the photocatalytic column (11), the driving component (4) includes a driving disc cavity (41), the driving disc cavity (41) is opened inside the photocatalytic column (11), the driving disc cavity (41) and the photocatalytic column (11) share a central axis, the driving disc cavity (41) and the four boost column cavities (303) are connected at the same time, a gain component (5) is provided inside the photocatalytic column (11), the gain component (5) includes an air collection ring cavity (501), the air collection ring cavity (501) is opened inside the photocatalytic column (11) and is located in the time-delay column cavity (21), and the photocatalytic column cavity (11) is located in the time-delay column cavity (21). Below the column cavity (21) and the boost column cavity (303), a de-impurity component (6) is provided on the top surface of the photocatalytic column (11), the de-impurity component (6) comprises a de-impurity boss (601), the de-impurity boss (601) is fixedly connected to the top surface of the photocatalytic column (11), the de-impurity boss (601) and the photocatalytic column (11) share a central axis, a cleaning component (7) is provided on the de-impurity boss (601), the cleaning component (7) comprises a sealing mask (701), the sealing mask (701) is threadedly sleeved on the top of the de-impurity boss (601), and the top end of the sealing mask (701) is connected to the exhaust gas inlet pipe (15).

2. The photocatalytic purification device for VOCs treatment according to claim 1, characterized in that: The delay unit (2) further comprises a mounting socket (22), the mounting socket (22) being arranged on the top surface of the inner cavity of the delay column cavity (21), the top end of the mounting socket (22) being open and the opening being arranged on the top surface of the photocatalytic column (11), the inner wall of the mounting socket (22) being provided with an embedding groove (23) located at the top end thereof, the top end of the embedding groove (23) being open and the opening being arranged on the top surface of the photocatalytic column (11), a sealing pad (24) being embedded in the interior of the embedding groove (23), the sealing pad (24) being fixed in the interior of the embedding groove (23) by bolts, and the tubular catalyst carrier ( 16) is slidably plugged into the interior of the mounting socket (22), the top end of the tubular catalyst carrier (16) is in contact with the bottom surface of the blocking pad (24), the ultraviolet catalytic lamp (17) passes through the blocking pad (24) and is movably plugged into the interior of the tubular catalyst carrier (16), the ultraviolet catalytic lamp (17) and the blocking pad (24) are threadedly matched, and the delay unit (2) also includes eight touch-pressure switches (25), the eight touch-pressure switches (25) are fixedly plugged into the side of the photocatalytic column (11) and are located at the top thereof and are evenly distributed, and the eight touch-pressure switches (25) correspond one-to-one to the eight delay column cavities (21).

3. A photocatalytic purification device for VOCs treatment according to claim 1 or 2, characterized in that: The booster assembly (3) further comprises an input annular cavity (301), the input annular cavity (301) being arranged inside the impurity-removing boss (601) and being located at its bottom end, the input annular cavity (301) and the impurity-removing boss (601) sharing a central axis, four air suction check valves (302) being fixedly plugged into the bottom surface of the inner cavity of the input annular cavity (301), the four air suction check valves (302) corresponding to the four booster column cavities (303) one by one, the bottom ends of the air suction check valves (302) extending into the interior of the booster column cavities (303), and the booster assembly (3) further comprises a lifting spring The lifting spring (304) is movably inserted in the interior of the boost column chamber (303); the bottom surface of the inner cavity of the boost column chamber (303) is connected to a lifting lower piston (305) through the lifting spring (304); the lifting lower piston (305) is slidably inserted in the interior of the boost column chamber (303); a lifting air pipe (306) is fixedly inserted on the lifting lower piston (305); the bottom end of the lifting air pipe (306) passes through the lifting lower piston (305); the top end of the lifting air pipe (306) is fixedly sleeved with a lifting upper piston (307); The upper piston (307) is slidably inserted into the interior of the boost column cavity (303), the drive disc cavity (41) is located between the lifting lower piston (305) and the lifting upper piston (307), a gas delivery check valve (308) is fixedly inserted on the top surface of the lifting upper piston (307), the gas delivery check valve (308) is connected to the lifting gas pipe (306), and an output check valve (309) is fixedly inserted on the bottom surface of the inner cavity of the boost column cavity (303), and the boost component (3) also includes an annular transfer cavity (310), which is opened on the photocatalytic column The interior of the body (11) is located below the boost column cavity (303), the bottom end of the output check valve (309) extends to the interior of the annular transfer cavity (310), a pressure detection head (311) is fixedly connected to the inner side surface of the inner cavity of the annular transfer cavity (310), and a shunt air pipe (312) is fixedly connected to the outer side surface of the inner cavity of the annular transfer cavity (310), the number of the shunt air pipes (312) is eight, the eight shunt air pipes (312) correspond to the eight delay column cavities (21) one by one, and an electromagnetic air valve (313) is installed on the shunt air pipe (312).

4. The photocatalytic purification device for VOCs treatment according to claim 3 is characterized by: The driving component (4) further comprises a driving disc (42), the driving disc (42) being movably inserted into the interior of the driving disc cavity (41), the exterior of the driving disc (42) being fixedly sleeved with a pressure circle (43) located at the top thereof, the pressure circle (43) being movably inserted into the interior of the driving disc cavity (41), two sloped convex plates (44) being fixedly connected to the bottom surface of the pressure circle (43), the two sloped convex plates (44) being evenly distributed on the bottom surface of the pressure circle (43), the sloped convex plates (44) being fixedly connected to the surface of the driving disc (42), and the driving component (4) further comprises a pressure-bearing end plate (45), the pressure-bearing end plate (45) being fixedly connected to the surface of the lifting air pipe (306), the pressure-bearing end plate (45) ) is movably embedded with a pressure-bearing steel ball (46), which is in contact with the bottom surface of the pressure circle (43) and is compatible with the slope convex plate (44); a driving long shaft (47) is fixedly inserted on the driving disc (42), and the top end of the driving long shaft (47) is movably inserted on the top surface of the inner cavity of the driving disc cavity (41); the bottom end of the driving long shaft (47) extends from the bottom surface of the photocatalytic column (11) and is fixedly connected to a driving motor (48); a mounting cylinder (49) is fixedly installed on the driving motor (48), and the mounting cylinder (49) is fixedly inserted on the bottom surface of the photocatalytic column (11); and a heat dissipation hole (40) located below the photocatalytic column (11) is opened on the surface of the mounting cylinder (49).

5. The photocatalytic purification device for VOCs treatment according to claim 4 is characterized in that: The gain component (5) further comprises a ventilation column cavity (502), the ventilation column cavity (502) being arranged inside the photocatalytic column (11) and being located below the time-delay column cavity (21), the number of the ventilation column cavities (502) being eight, the eight ventilation column cavities (502) corresponding one to one with the eight time-delay column cavities (21), the ventilation column cavity (502) being connected to the shunt gas pipe (312), a ventilation through hole (503) being arranged on the top surface of the inner cavity of the ventilation column cavity (502), the ventilation through hole (503) being connected to the time-delay column cavity (21), and a gas detection device being fixedly connected to the bottom surface of the inner cavity of the ventilation column cavity (502) The gas detection head (504) is provided with a gas detection head (504), the bottom end of which extends to the interior of the gas collecting ring cavity (501), a clean gas pipe (505) is fixedly connected to the bottom surface of the inner cavity of the gas exchange column cavity (502), the bottom end of the clean gas pipe (505) extends to the interior of the gas collecting ring cavity (501), an electromagnetic clean gas valve (506) is installed at the bottom end of the clean gas pipe (505), and a pressure sensing head (507) is connected to the pipeline of the clean gas pipe (505), and the gain component (5) also includes a cavity compartment shell (508), which is located inside the gas collecting ring cavity (501) and is fixedly connected to the top of its inner cavity. The driving long shaft (47) passes through the compartment shell (508), the top end of the mounting cylinder (49) is fixedly connected to the bottom surface of the compartment shell (508), a transmission gear (509) is provided inside the compartment shell (508), and the transmission gear (509) is fixedly sleeved on the outside of the driving long shaft (47), the bottom surface of the inner cavity of the ventilation column cavity (502) is fixedly connected to an air guide cone (510), the surface of the air guide cone (510) is fixedly connected to a lifting arm (511), the top end of the lifting arm (511) is fixedly connected to a fixed short tube (512), and the top of the fixed short tube (512) is fixedly connected to the bottom surface of the inner cavity of the ventilation column cavity (502). The end is fixedly inserted on the top surface of the inner cavity of the ventilation column cavity (502) and extends to the interior of the delay column cavity (21); the tubular catalyst carrier (16) is movably sleeved on the outside of the fixed short tube (512); a linkage short shaft (513) is movably inserted on the air guide cone (510); the bottom end of the linkage short shaft (513) extends to the interior of the compartment shell (508) and is fixedly connected to a driven gear (514); the driven gear (514) is meshed with the transmission gear (509); the top end of the linkage short shaft (513) extends to the interior of the fixed short tube (512) and is fixedly sleeved with a driving blade (515).

6. The photocatalytic purification device for VOCs treatment according to claim 4, characterized in that: The impurity removal component (6) further comprises an impurity removal groove (602), wherein the impurity removal groove (602) is provided on the top surface of the impurity removal boss (601), wherein a constant pressure groove (603) is provided on the bottom surface of the inner cavity of the impurity removal groove (602) and is located in the middle thereof, wherein a constant pressure through hole (604) is provided on the inner wall of the constant pressure groove (603), wherein the constant pressure through hole (604) is communicated with the input annular cavity (301), wherein the top end of the driving shaft (47) passes through the constant pressure groove (603) and the impurity removal groove (602), wherein a mounting sleeve (605) is movably inserted into the interior of the impurity removal groove (602), wherein the mounting sleeve (605) is sleeved on the top end of the driving shaft (47) and fixed by bolts, wherein a filter housing (606) is fixedly sleeved on the exterior of the mounting sleeve (605), wherein the bottom end of the filter housing (606) is movably inserted into the interior of the constant pressure groove (603), wherein the filter housing (606) is 06) is fixedly connected to the inner wall of the reinforcing brace (607), the other end of the reinforcing brace (607) is fixedly connected to the surface of the mounting sleeve (605), a plurality of socket grooves (608) are provided on the bottom surface of the inner cavity of the impurity removal groove (602), the plurality of socket grooves (608) surround the constant pressure groove (603), one end of the socket groove (608) is open and the opening is provided on the side of the impurity removal boss (601), a sealing plug (609) is movably inserted inside the socket groove (608), a gathering groove (610) is provided on the top surface of the sealing plug (609), a magnetic sealing plate (611) is fixedly connected to the end of the sealing plug (609), the magnetic sealing plate (611) is magnetically attracted to the surface of the impurity removal boss (601), and a pulling handle (612) is fixedly connected to the side of the magnetic sealing plate (611).

7. The photocatalytic purification device for VOCs treatment according to claim 6, characterized in that: The cleaning assembly (7) further comprises a stop brace (702), the stop brace (702) being fixedly connected to the inner wall of the sealing housing (701), the other end of the stop brace (702) being fixedly connected to a positioning column (703), the top surface of the positioning column (703) being fixedly connected to a diverter cone (704), the top end of the diverter cone (704) extending to the inside of the exhaust gas inlet pipe (15), a receiving groove (705) being provided on the bottom surface of the positioning column (703), a stop sliding hole (706) being provided on the inner wall of the receiving groove (705), and a counterweight being slidably inserted into the inside of the receiving groove (705). The sleeve (707) has a counterweight sleeve (707) on its surface, and a stop wing (708) is fixedly connected to the surface of the counterweight sleeve (707), and the stop wing (708) is slidably inserted into the inside of the stop sliding hole (706). The bottom end of the counterweight sleeve (707) is slidably sleeved on the outside of the mounting sleeve (605). The surface of the counterweight sleeve (707) is fixedly connected to a counterweight cross brace (709) located at its bottom end, and a mounting vertical rod (710) is fixedly connected to the bottom surface of the counterweight cross brace (709), and a long brush (711) is fixedly connected to the bottom end of the mounting vertical rod (710), and the long brush (711) is compatible with the filter housing (606).

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