Air treatment system and method based on tpos phase transfer catalysis technology

Abstract

The present application relates to the field of environmental protection, and more particularly to an air treatment system and method based on TPOS phase transfer targeted catalysis technology. The system comprises a gas delivery unit, a free radical enhancement assembly, a phase transfer reactor, a catalysis assembly, and an intelligent control module. The gas delivery unit sends waste gas into the system, and uses ozone and singlet oxygen to preliminarily oxidize the waste gas. The free radical enhancement assembly comprises an aerosol generation unit. The aerosol generation unit converts the prepared free radical precursor solution into fine aerosol droplets. The phase transfer reactor is internally provided with a catalysis layer. The catalysis mode of the catalysis layer includes catalyst catalysis, heating catalysis, electrochemical catalysis, and ultraviolet light catalysis. The intelligent control module monitors the air treatment system in real time. Through the innovative design of multi-free radical synergistic oxidation, adjustable self-cleaning catalysis, intelligent control, and heat energy recovery, the present application realizes efficient purification, deep sterilization, energy saving and consumption reduction, and safe operation of waste gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of environmental protection, and particularly relates to an air treatment system and method based on TPOS phase transition targeting catalysis technology. BACKGROUND

[0002] Landfills and medical waste treatment facilities (such as incinerators, treatment centers) are indispensable end-of-pipe disposal links in modern cities, but they are also important sources of air pollution. The complex pollutants emitted by them, mainly including sulfur / nitrogen-containing compounds and various pathogens, pose a serious threat to the ecological environment, public health, social economy, and even climate change. Sulfur compounds (such as hydrogen sulfide, mercaptans, etc.) and nitrogen-containing compounds (such as ammonia, nitrogen oxides, etc.), these substances are the main source of malodor, even at very low concentrations, can be perceived by the human body, seriously reducing the quality of life of surrounding residents, causing symptoms such as nausea, headache, insomnia, etc. Hydrogen sulfide is a strong neurotoxin, high concentrations can cause "electric shock-like" poisoning and even death; long-term exposure to low concentrations of the environment can also damage the respiratory and nervous systems. Nitrogen oxides can stimulate the lungs, induce and exacerbate respiratory diseases such as asthma and bronchitis, and react with other substances in the air to form secondary pollutants. Sulfur oxides and nitrogen oxides emitted into the atmosphere are the main precursors of acid rain. Acid rain can cause soil and water acidification, damage forests and crops, and corrode buildings and historical relics. Nitrogen oxides and sulfur oxides undergo complex photochemical reactions in the atmosphere and can be converted into nitrate and sulfate particulate matter, which is an important component of PM2.5, exacerbating haze pollution. Pathogens mainly come from medical waste (such as used needles, gauze, culture dishes, surgical limbs, etc.) and bacteria, viruses (such as hepatitis virus, HIV, new coronavirus, etc.), fungi and parasite eggs in landfill leachate. These pathogens can be spread in the air through aerosols, dust, etc., or spread by mosquitoes, flies, and rats. If not properly controlled, it is easy to cause infection of community and occupational exposure personnel, and even lead to outbreaks of infectious diseases, posing a direct and serious challenge to public health safety.

[0003] A Chinese patent with the authorization number CN223221257U discloses a malodor wet oxidation treatment device, which comprises: a gas conveying unit for collecting and conveying malodor gas; a wet ozone catalytic oxidation unit in communication with the gas conveying unit, for preliminarily treating the malodor gas to remove part of malodor substances in the malodor gas; a chemical oxidation unit in communication with the wet ozone catalytic oxidation unit, for further treating the preliminarily treated malodor gas to remove the remaining malodor substances in the malodor gas; and a gas discharge unit in communication with the chemical oxidation unit, for collecting the purified malodor gas and discharging it outward.

[0004] The existing malodorous treatment device mainly has the following deficiencies: firstly, the secondary treatment mode of "wet ozone catalytic oxidation + chemical oxidant (such as sodium hypochlorite)" is adopted in the oxidation mechanism, the oxidation capacity depends on the single action of ozone and specific chemical reagents, a multi-element free radical cooperative combat system cannot be constructed, especially the effective use of high-activity oxidizing species such as sulfate radicals is lacking, which leads to limited mineralization efficiency of refractory malodorous substances (such as non-water-soluble VOCs), and incomplete oxidation may produce secondary intermediate pollutants; secondly, the reaction waste heat cannot be effectively utilized in terms of energy efficiency and resource utilization, and the continuous addition of chemical oxidants not only increases the operation cost, but also may introduce new environmental risks such as chlorinated organic compounds; thirdly, the catalytic area or pore structure cannot be dynamically adjusted according to the concentration and component of pollutants in terms of system adaptability, and there is no effective online cleaning mechanism, which may lead to a decrease in treatment efficiency due to catalyst clogging or deactivation in long-term operation; finally, there is a significant gap in the targeting and complete inactivation of pathogens. SUMMARY

[0005] In view of the problems in the background art, an air treatment system and method based on TPOS phase transfer targeted catalysis technology are proposed, which realizes efficient purification, deep sterilization, energy saving and consumption reduction, and safe operation of waste gas through multi-free radical cooperative oxidation, adjustable self-cleaning catalysis, intelligent control and heat energy recovery.

[0006] The air treatment system based on TPOS phase transfer targeted catalysis technology comprises a gas conveying unit, a free radical enhancement assembly, a phase transfer reactor, a catalysis assembly, and an intelligent control module. The gas conveying unit sends waste gas into the system, and the waste gas is preliminarily oxidized by ozone and singlet oxygen. The free radical enhancement assembly comprises an aerosol generating unit. The aerosol generating unit converts the prepared free radical precursor solution into fine aerosol droplets. The phase transfer reactor is internally provided with a catalytic layer. The catalytic mode of the catalytic layer includes catalyst catalysis, heating catalysis, electrochemical catalysis, and ultraviolet light catalysis. The aerosol droplets and pollutant molecules meet in the catalytic layer and are attacked by free radicals, and a free radical cooperative combat system is formed through the synergistic reaction between different free radicals to complete the phase transfer reaction. The catalysis assembly comprises two-stage catalytic components. Through the electron transfer splitting on the surface of the catalytic net, the free radical group performs non-selective electron extraction or hydrogen extraction attack on the pollutant molecules to realize complete mineralization. The two-stage catalytic components are adjusted to change the catalytic net hole density and clean the catalytic net surface. The intelligent control module monitors the air treatment system in real time.

[0007] Preferably, the phase transfer reactor and the free radical enhancement assembly are arranged above and below the air treatment tank respectively, and a mixing chamber is arranged between the phase transfer reactor and the free radical enhancement assembly. The mixing chamber enters the free radical precursor solution through pipeline one and enters the waste gas through pipeline two.

[0008] Preferably, the catalytic assembly comprises a catalytic cylinder; the gas outlet pipe of the phase transfer reactor is communicated with the bottom of the catalytic cylinder; the catalytic cylinder is provided with a catalytic component; the top of the catalytic cylinder is provided with a spray cover; the spray cover is provided with a spray frame on one side; the spray frame is communicated with the mixing chamber through the cooperation of the pipeline three and the circulating pump.

[0009] Preferably, the gas outlet pipe is provided with a heat exchanger.

[0010] Preferably, the catalytic cylinder is provided with a cylindrical catalytic cavity; the two-section catalytic component adopts a spiral structure and is arranged along the length direction of the cylindrical catalytic cavity, with a fixed section one at one end and a rotating section at the other end; the rotating section realizes catalytic adjustment by rotating around the fixed section one.

[0011] Preferably, the fixed section one of the spiral catalytic component comprises a mounting column fixed on the upper end of the cylindrical catalytic cavity; the mounting column is peripherally fixed with a spiral catalytic net one and internally provided with a rotating guide rod; the guide rod is provided with a spiral guide groove; the rotating section of the spiral catalytic component comprises a rotating pipe sleeved on the bottom of the guide rod; the top of the rotating pipe is provided with a driving sleeve rotating up and down along the spiral guide groove and peripherally movably sleeved with a spiral catalytic net two; the bottom of the spiral catalytic net two is connected with the rotating pipe, and the head is provided with a cleaning component one, and the overall shape of the spiral catalytic net two is consistent with that of the spiral catalytic net one; with the rotating up and down of the driving sleeve, the spiral catalytic net two rotates up and down along the mesh surface of the spiral catalytic net one synchronously, and the cleaning component one moves along the mesh surface of the spiral catalytic net one synchronously.

[0012] Preferably, the catalytic cylinder is provided with a square catalytic cavity; the two-section catalytic component adopts a wave structure and is arranged along the width direction of the square catalytic cavity, with a fixed section two on one side and a translation section at one end; the translation section realizes catalytic adjustment by moving along the fixed section two.

[0013] Preferably, the fixed section two of the wave catalytic component comprises a fixed frame connected to the side wall of the square catalytic cavity; the fixed frame is horizontally provided with a wave catalytic net one; the other side of the wave catalytic net one is provided with a limiting stopper; the translation section of the wave catalytic component comprises a moving frame horizontally moving on the other side of the square catalytic cavity; the moving frame is provided with a wave catalytic net two on the side close to the wave catalytic net one; the wave catalytic net two is located below the wave catalytic net one and is provided with a cleaning component two at the head; the overall shape of the wave catalytic net two is consistent with that of the wave catalytic net one; with the horizontal movement of the moving frame, the wave catalytic net two moves along the mesh surface of the wave catalytic net one synchronously, and the cleaning component two moves along the mesh surface of the wave catalytic net one synchronously.

[0014] Preferably, the side of the moving frame away from the wave catalytic net one is provided with a sealing telescopic belt.

[0015] The air treatment method of the air treatment system based on the TPOS phase transfer targeted catalytic technology is as follows:

[0016] S1, the gas delivery unit sends the waste gas into the system, and the ozone and singlet oxygen generated by the ion generator preliminarily oxidize the waste gas; O3 destroys some macromolecular organic matter and part of the cell wall of bacteria, 1 O2 directly attacks the membrane structure of the pathogen;

[0017] S2, the aerosol generating unit converts the prepared free radical precursor solution into fine aerosol droplets through ultrasonic atomization;

[0018] S3, the synergistic reaction between different free radicals forms a free radical synergistic combat system, and the phase transfer reaction is completed;

[0019] S4, after the electron transfer splitting on the surface of the catalytic net, the free radical group performs non-selective electron extraction or hydrogen extraction attack on the pollutant molecules; under the guidance of electron directional transfer, the free radicals preferentially attack the key chemical bonds of the pollutant molecules, so that they are broken and cracked, and finally oxidized into harmless small molecules, realizing complete mineralization; the catalytic assembly controls the size of the catalytic net hole and cleans the surface of the catalytic net by adjustment; 1 O2 and ·OH destroy the cell membrane and genetic material of the pathogenic microorganism, and realize deep sterilization;

[0020] S5, after the waste gas passes through the catalytic assembly, it is discharged after complete sterilization by spraying;

[0021] S6, the intelligent control module monitors the air treatment system in real time; the heat exchanger preheats the imported cold waste gas using the heat energy of the treated air.

[0022] Compared with the prior art, the present application has the following beneficial technical effects: the system constructs an oxidation system of multiple levels of free radicals such as ozone, singlet oxygen, sulfate free radicals and hydroxyl radicals, realizes complete mineralization and decomposition of gaseous pollutants such as volatile organic compounds, and deep sterilization and disinfection of pathogenic microorganisms; the adjustable two-stage spiral or wave-shaped catalytic assembly can dynamically change the density of the catalytic net hole to adapt to different processing loads, and at the same time, the synchronous movement of the spring cleaning piece or the wave cleaning strip realizes the online self-cleaning of the surface of the catalytic net, effectively prevents blockage and maintains the catalytic activity; by combining aerosol addition with spraying reinforcement, the mass transfer reaction efficiency of the free radical precursor and the pollutant is greatly improved; the integrated intelligent control module realizes dynamic sensing of the waste gas concentration and power adaptive adjustment, and the heat exchanger recovers the waste heat of the purified gas to preheat the imported waste gas, which significantly reduces the energy consumption of the system. It is suitable for air treatment scenes containing sulfur / nitrogen compounds and pathogens such as landfill sites and medical waste treatment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an air treatment system working principle diagram based on TPOS phase transfer targeting catalysis technology;

[0024] Figure 2 Structure diagram of air treatment tank and catalytic cylinder;

[0025] Figure 3 Sectional view of air treatment tank;

[0026] Figure 4 Sectional view of catalytic assembly in Example Three;

[0027] Figure 5 Structure diagram of catalytic component in Example Three;

[0028] Figure 6 For Figure 5 Enlarged view at A in Example Three;

[0029] Figure 7 Disassembled view of cleaning component one;

[0030] Figure 8 Sectional view of catalytic assembly in Example Four;

[0031] Figure 9 Sectional view of catalytic component in Example Four;

[0032] Figure 10 Structure diagram of cleaning component two;

[0033] Reference signs: 1, air treatment tank; 2, catalytic assembly; 201, catalytic cylinder; 202, cleaning component two; 203, fixed section one; 20301, spiral catalytic net one; 20302, mounting column; 20303, motor one; 20304, guide rod; 204, rotating section; 20401, spiral catalytic net two; 20402, rotating tube; 20403, driving sleeve; 205, cleaning component one; 20501, cleaning frame; 20502, cleaning sheet; 20503, spring; 206, fixed section two; 20601, fixed frame; 20602, wave catalytic net one; 20603, limiting edge; 207, translation section; 20701, wave catalytic net two; 20702, sealing expansion belt; 20703, moving frame; 3, spray cover; 4, pipeline three; 5, circulating pump; 6, pipeline two; 7, pipeline one; 8, air outlet; 9, spray frame; 10, radical enhancement assembly; 11, phase transition reactor; 12, air outlet pipe; 13, heat exchanger. DETAILED DESCRIPTION

[0034] Example One, as Figure 1As shown, the present invention proposes an air treatment system based on TPOS phase-inversion targeted catalysis technology, including a gas delivery unit, a free radical enhancement component 10, a phase-inversion reactor 11, a catalytic component 2, and an intelligent control module. The gas delivery unit sends the exhaust gas into the system, where ozone and singlet oxygen are used for preliminary oxidation. The free radical enhancement component 10 includes an aerosol generation unit, which converts the prepared free radical precursor solution into fine aerosol droplets. The phase inversion reactor 11 has a built-in catalytic layer. The catalytic methods of the catalytic layer include catalyst catalysis, heating catalysis, electrochemical catalysis, and ultraviolet photocatalysis. When aerosol droplets and pollutant molecules meet in the catalytic layer, they are attacked by free radicals. Through synergistic reactions between different free radicals, a free radical synergistic combat system is formed, completing the phase inversion reaction. The catalytic component 2 includes a two-stage catalytic element. After electron transfer and cracking on the surface of the catalytic mesh, the free radical group attacks the pollutant molecules non-selectively by extracting electrons or hydrogen, achieving complete mineralization. By adjusting the two-stage catalytic element, the density of the catalytic mesh is changed on the one hand, and the surface of the catalytic mesh is cleaned on the other. The intelligent control module monitors the air treatment system in real time.

[0035] Example 2, as Figures 2-3 As shown, in this embodiment, the phase-inversion reactor 11 and the free radical enhancement component 10 are respectively arranged above and below the air treatment tank 1; a mixing chamber is provided between the phase-inversion reactor 11 and the free radical enhancement component 10; the free radical precursor solution enters the mixing chamber through pipe 7 and the exhaust gas enters through pipe 6; the free radical precursor solution contains K2S2O8, sodium rosehipate, and FeSO4; the aerosol generating unit atomizes the prepared free radical precursor solution containing K2S2O8, sodium rosehipate, and FeSO4 using ultrasonic atomization, converting it into 1-5μm fine aerosol droplets; after the aerosol droplets and exhaust gas are mixed in the mixing chamber, they move upward to the phase-inversion reactor 11.

[0036] The catalytic assembly 2 includes a catalytic cylinder 201; the gas outlet pipe 12 of the phase-inversion reactor 11 is connected to the bottom of the catalytic cylinder 201; a catalytic element is installed inside the catalytic cylinder 201, and a spray hood 3 is installed on the top of the catalytic cylinder 201; a spray frame 9 is installed inside the spray hood 3, and a gas outlet 8 is installed on one side; the spray frame 9 is connected to the mixing chamber through a pipe 4 and a circulation pump 5; the effective range of the free radical precursor solution is further increased by spraying.

[0037] It should be further explained that a heat exchanger 13 is installed on the outlet pipe 12, and a gas-to-gas heat exchanger 13 is added through the outlet of the phase-inversion reactor 11 to preheat the inlet cold exhaust gas using the heat energy of the treated air. This not only recovers heat but also improves the overall reaction rate.

[0038] Further, in order to prevent leakage of high-concentration ozone or free radical precursor solution, an ambient concentration sensor can be added to the system. When the concentration at the outlet of pipe 1 and pipe 2 exceeds the standard, the pipes can be automatically closed and emergency exhaust can be started.

[0039] Further, a waste liquid collection and neutralization tank is provided. The reacted liquid can contain metal ions and unreacted oxidant. After collection, the liquid can be regenerated by an electrolysis regenerator or be safely discharged after being introduced into the neutralization tank (e.g., by adding a small amount of Na2SO3 to reduce residual oxidant and adjusting the pH).

[0040] Further, a UV LED lamp bead (e.g., 365 nm UVA) is arranged inside phase transfer reactor 11. This can ensure that sodium rose Bengal is continuously and efficiently excited to generate 1 O2, thereby enhancing the inactivation effect on pathogens, and the LED has low energy consumption and long service life.

[0041] As shown in Figures 4-6 Figure 3, the catalytic cylinder 201 is provided with a cylindrical catalytic cavity. The two-stage catalytic member is in a spiral structure and is arranged along the length direction of the cylindrical catalytic cavity. One end is provided with a fixed section 1 203, and the other end is provided with a rotating section 204. The rotating section 204 rotates around the fixed section 1 203 to realize catalytic adjustment. The fixed section 1 203 of the spiral catalytic member includes a mounting column 20302 fixed on the upper end of the cylindrical catalytic cavity by a fixing frame. The mounting column 20302 is peripherally fixed with a spiral catalytic net 1 20301. The top is provided with a motor 1 20303, and the inside is provided with a guide rod 20304 driven to rotate by the motor 1 20303. The guide rod 20304 is provided with a spiral guide groove. The rotating section 204 of the spiral catalytic member includes a rotating tube 20402 sleeved on the bottom of the guide rod 20304. The top of the rotating tube 20402 is provided with a driving sleeve 20403 rotating and lifting along the spiral guide groove, and the periphery is movably connected with a spiral catalytic net 2 20401.

[0042] Further, the driving sleeve 20403 is provided with a climbing structure rotating and lifting along the spiral guide groove.

[0043] Further, the bottom of the spiral catalytic net 2 20401 is connected with the rotating tube 20402, and the head is provided with a cleaning member 1 205. The overall shape of the spiral catalytic net 2 20401 is consistent with that of the spiral catalytic net 1 20301.

[0044] Further, with the rotating and lifting of the driving sleeve 20403, the spiral catalytic net 2 20401 rotates and lifts along the surface of the spiral catalytic net 1 20301 synchronously, and the cleaning member 1 205 moves along the surface of the spiral catalytic net 1 20301 synchronously.

[0045] As Figure 7 shown, the cleaning piece one 205 includes a cleaning frame 20501 connected to the outer edge of the spiral catalytic net two 20401; a spring 20503 is arranged in the cleaning frame 20501; a cleaning sheet 20502 is arranged at the bottom of the spring 20503; under the pushing of the spring 20503, the cleaning sheet 20502 moves close to the mesh surface of the spiral catalytic net two 20401.

[0046] The aerosol droplets and pollutant molecules move up to the spiral catalytic piece. By driving the sleeve 20403 to rotate and lift along the spiral guide groove, the spiral catalytic net two 20401 is driven to rotate and lift synchronously along the mesh surface of the spiral catalytic net one 20301.

[0047] During the lifting process, the density of the catalytic net holes can be adjusted, and at the same time, the cleaning sheet 20502 moves close to the mesh surface of the spiral catalytic net two 20401 under the pushing of the spring 20503. The relative movement of the spiral catalytic net two 20401 and the spiral catalytic net one 20301 can clean the mesh surface, ensuring the smoothness of the exhaust gas flow.

[0048] Example four, as Figures 8-9 shown, the catalytic cylinder 201 is provided with a square catalytic cavity; the two-section catalytic piece adopts a wave-shaped structure and is arranged along the width direction of the square catalytic cavity, one side is provided with a fixed section two 206, and one end is provided with a translation section 207; the translation section 207 moves along the fixed section two 206 to realize catalytic adjustment.

[0049] The fixed section two 206 of the wave-shaped catalytic piece includes a fixed frame 20601 connected to the side wall of one side of the square catalytic cavity; a wave-shaped catalytic net one 20602 is horizontally arranged on the fixed frame 20601; the other side of the wave-shaped catalytic net one 20602 is provided with a limiting rail 20603; the translation section 207 of the wave-shaped catalytic piece includes a moving frame 20703 horizontally moving on the other side of the square catalytic cavity; the moving frame 20703 is provided with a wave-shaped catalytic net two 20701 close to one side of the wave-shaped catalytic net one 20602.

[0050] It needs to be further explained that the cavity wall of the square catalytic cavity is provided with a track; the moving frame 20703 is provided with a translation structure moving along the track.

[0051] It needs to be further explained that the wave-shaped catalytic net two 20701 is located below the wave-shaped catalytic net one 20602, and the head is provided with a cleaning piece two 202; the overall shape of the wave-shaped catalytic net two 20701 is consistent with that of the wave-shaped catalytic net one 20602.

[0052] With the horizontal movement of the moving frame 20703, the wave-shaped catalytic net two 20701 moves synchronously along the mesh surface of the wave-shaped catalytic net one 20602, and the cleaning piece two 202 moves synchronously along the mesh surface of the wave-shaped catalytic net one 20602.

[0053] like Figure 10 As shown, the cleaning component 202 is configured as a wavy cleaning strip; the cleaning strip moves in accordance with the mesh surface of the wavy catalytic mesh 20602.

[0054] Aerosol droplets and pollutant molecules move upwards to the wave-shaped catalyst element. The moving frame 20703 moves along the track, causing the wave-shaped catalyst mesh 20701 to move synchronously along the mesh surface of the wave-shaped catalyst mesh 20602.

[0055] During the translation process, the density of the catalytic mesh can be adjusted. At the same time, the movement of the cleaning strip against the surface of the wave catalytic mesh 20602 and the relative movement of the wave catalytic mesh 20602 and wave catalytic mesh 20701 can all clean the mesh surface and ensure the smooth flow of exhaust gas.

[0056] A sealing telescopic belt 20702 is installed on the side of the mobile frame 20703 away from the wave catalytic mesh 20602. When the mobile frame 20703 moves the wave catalytic mesh 20701 along the mesh surface of the wave catalytic mesh 20602, the sealing telescopic belt 20702 is extended synchronously to prevent exhaust gas from passing behind the mobile frame 20703, so as to ensure the treatment effect.

[0057] Example 5: Based on the air treatment system based on TPOS phase-inversion targeted catalysis technology described above, this example proposes an air treatment method, the steps of which are as follows:

[0058] S1, the gas delivery unit sends the exhaust gas into the system, where it is converted into ozone (O3) and singlet oxygen by the ion generator. 1 O2) performs preliminary oxidation on the waste gas; O3 breaks down some large organic molecules and the cell walls of some bacteria. 1 O2, due to its high reactivity, can directly attack the membrane structure of pathogens; this step paves the way for subsequent deep oxidation.

[0059] S2, the aerosol generation unit converts the prepared free radical precursor solution containing K2S2O8, sodium rosehipate, and FeSO4 into 1-5μm fine aerosol droplets through ultrasonic atomization.

[0060] S3. Different free radicals undergo a cooperative reaction, forming a free radical cooperative combat system and completing the phase transition reaction: atomized Fe 2+ With S2O8 in aerosols 2- When they meet in the catalyst layer, a chain reaction is triggered to generate sulfate radicals; heating the catalyst layer to 55℃-75℃ can also decompose S2O8 through thermal activation. 2- This generates more acid radicals; a 0.8V bias voltage is applied to the catalyst layer to drive directional electron transfer, which on the one hand accelerates Fe... 3+Reduced to Fe 2+ To achieve catalytic cycle, on the other hand, guide the radicals to generate preferentially in the area rich in pollutant molecules, achieve "targeted attack"; aerosol droplets, pollutant molecules and supported MnO2-CeO2 catalyst contact on the catalytic layer, Mn 2+ / Ce 4+ Redox pair efficiently activates O3 and H2O2, generating a large number of hydroxyl radicals (·OH); sodium rose Bengal under UV light excitation, continuously generate 1 O2;

[0061] S4, through the catalytic network surface electron transfer cleavage, high activity of free radical group (SO4· - , ·OH) to pollutant molecules (such as H2S, ammonia, VOCs) for non-selective electron extraction or hydrogen extraction attack; under the guidance of electron directional transfer, radicals preferentially attack the key chemical bonds of pollutant molecules (such as C-S, C-N, S-H), making them break and cleave, and finally be oxidized to CO2, H2O, SO4 2- , NO3⁻, etc. Harmless small molecules, achieve complete mineralization; catalytic assembly 2 by adjusting, control the size of catalytic mesh, clean catalytic mesh surface; pathogenic microorganisms are 1 O2 and ·OH destroy their cell membranes and genetic material, achieve deep sterilization;

[0062] S5, after the exhaust gas passes through the catalytic assembly 2, it is discharged after complete sterilization by spraying;

[0063] S6, intelligent control module real-time monitoring air treatment system, specifically including dynamic adjustment of the concentration of the inlet exhaust gas; increase the power when the concentration is high, generate more aerosol precursors, optimize the radical generation rate; SO4 2- Through electrolysis to be converted into S2O8 2- , realize the recycling of reagents, reduce operating costs; heat exchanger 13 uses the heat energy of the treated air to preheat the inlet cold exhaust gas.

[0064] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. An air treatment system based on TPOS phase transition targeted catalysis technology, characterized in that, The system comprises: a gas delivery unit for delivering the exhaust gas into the system and performing preliminary oxidation on the exhaust gas by using ozone and singlet oxygen; a free radical enhancement assembly (10) comprising an aerosol generation unit for converting the prepared free radical precursor solution into fine aerosol droplets; a phase transfer reactor (11) with a catalytic layer; the catalytic layer has a catalytic mode comprising catalyst catalysis, heating catalysis, electrochemical catalysis and ultraviolet light catalysis; the aerosol droplets and pollutant molecules meet in the catalytic layer and are attacked by free radicals, and through the synergistic reaction between different free radicals, a free radical synergistic combat system is formed to complete the phase transfer reaction; a catalytic assembly (2) comprising a two-stage catalytic element, through electron transfer dissociation on the surface of the catalytic net, the free radical group performs non-selective electron extraction or hydrogen extraction attack on the pollutant molecules to realize complete mineralization, and by adjusting the two-stage catalytic element, the catalytic net hole density is changed and the catalytic net surface is cleaned; and an intelligent control module for real-time monitoring of the air treatment system; the phase transfer reactor (11) and the free radical enhancement assembly (10) are arranged above and below the air treatment tank (1) respectively; a mixing chamber is arranged between the phase transfer reactor (11) and the free radical enhancement assembly (10); the mixing chamber enters the free radical precursor solution through pipeline one (7) and enters the exhaust gas through pipeline two (6); the catalytic assembly (2) comprises a catalytic cylinder (201); the exhaust pipe (12) of the phase transfer reactor (11) is connected to the bottom of the catalytic cylinder (201); a catalytic element is arranged in the catalytic cylinder (201), and a spray cover (3) is arranged at the top of the catalytic cylinder (201); a spray frame (9) is arranged in the spray cover (3), and an air outlet (8) is arranged on one side; the spray frame (9) is connected to the mixing chamber through pipeline three (4) and a circulating pump (5); a cylindrical catalytic cavity is arranged in the catalytic cylinder (201); the two-stage catalytic element adopts a spiral structure and is arranged along the length direction of the cylindrical catalytic cavity, one end of which is provided with a fixed section one (203) and the other end is provided with a rotating section (204); the rotating section (204) realizes catalytic adjustment by rotating around the fixed section one (203); the fixed section one (203) of the spiral catalytic element comprises a mounting column (20302) fixed to the upper end of the cylindrical catalytic cavity; a spiral catalytic net one (20301) is fixed around the mounting column (20302), and a rotating guide rod (20304) is arranged in the inside; a spiral guide groove is arranged on the guide rod (20304); the rotating section (204) of the spiral catalytic element comprises a rotating pipe (20402) sleeved at the bottom of the guide rod (20304); a driving sleeve (20403) rotating up and down along the spiral guide groove is arranged at the top of the rotating pipe (20402), and a spiral catalytic net two (20401) is movably sleeved around the outside of the rotating pipe (20402); the bottom of the spiral catalytic net two (20401) is connected to the rotating pipe (20402), the head is provided with a cleaning element one (205), and the overall shape of the spiral catalytic net two (20401) is consistent with that of the spiral catalytic net one (20301); With the rotation of the driving sleeve (20403), the helical catalytic net two (20401) rotates and lifts along the net surface of the helical catalytic net one (20301) synchronously, and the cleaning part one (205) moves along the net surface of the helical catalytic net one (20301) synchronously; The catalytic cylinder (201) is provided with a square catalytic cavity; the two-section catalytic part is provided in the width direction of the square catalytic cavity in a wave shape, one side is provided with a fixed section two (206), and one end is provided with a translation section (207); the translation section (207) moves along the fixed section two (206) to realize catalytic adjustment; The fixed section two (206) of the wave-shaped catalytic part includes a fixed frame (20601) connected to the side wall of one side of the square catalytic cavity; the fixed frame (20601) is provided with a wave-shaped catalytic net one (20602) horizontally; the other side of the wave-shaped catalytic net one (20602) is provided with a limiting guide (20603); The translation section (207) of the wave-shaped catalytic part includes a moving frame (20703) moving horizontally on the other side of the square catalytic cavity; the moving frame (20703) is provided with a wave-shaped catalytic net two (20701) on the side close to the wave-shaped catalytic net one (20602); The wave-shaped catalytic net two (20701) is located below the wave-shaped catalytic net one (20602) and is provided with a cleaning part two (202) at the head; the overall shape of the wave-shaped catalytic net two (20701) is consistent with that of the wave-shaped catalytic net one (20602); With the horizontal movement of the moving frame (20703), the wave-shaped catalytic net two (20701) moves along the net surface of the wave-shaped catalytic net one (20602) synchronously, and the cleaning part two (202) moves along the net surface of the wave-shaped catalytic net one (20602) synchronously.

2. The air treatment system based on TPOS phase transition targeting catalysis technology according to claim 1, characterized in that, The heat exchanger (13) is arranged on the air outlet pipe (12).

3. The air treatment system based on TPOS phase transition targeting catalytic technology according to claim 1, characterized in that, The side of the moving frame (20703) away from the wave-shaped catalytic net one (20602) is provided with a sealing expansion belt (20702).

4. The air treatment method of the TPOS phase transfer catalysis-based air treatment system according to claim 2, characterized in that, The steps are as follows: S1, the gas delivery unit sends the waste gas into the system, and the ozone and singlet oxygen generated by the ion generator preliminarily oxidize the waste gas; O3 destroys some macromolecular organic matter and part of the cell wall of bacteria, 1 O2 directly attacks the membrane structure of the pathogen; S2, the aerosol generating unit converts the prepared free radical precursor solution into fine aerosol droplets through ultrasonic atomization; S3, different free radicals react synergistically to form a free radical synergistic combat system, and complete phase transfer reaction; S4, the electron transfer through the surface of the catalytic net is split, the free radical group carries on the non-selective electron extraction or hydrogen extraction attack to the pollutant molecule; under the guidance of the electron directional transfer, the free radical preferentially attacks the key chemical bond of the pollutant molecule, so that the key chemical bond is broken and split, and finally is oxidized into harmless small molecules, so that complete mineralization is realized; the catalytic assembly (2) controls the catalytic net hole size by adjusting, and the catalytic net surface is cleaned; the pathogenic microorganism is 1 O2 and ·OH destroy its cell membrane and genetic material, and realize deep sterilization; S5, after the exhaust gas passes through the catalytic assembly (2), it is completely sterilized by spraying and then discharged; S6, the intelligent control module monitors the air treatment system in real time; the heat exchanger (13) uses the heat energy of the treated air to preheat the inlet cold exhaust gas.

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