Indoor air purification device

Abstract

The invention relates to the technical field of air purification, in particular to an indoor air purification device which comprises an air inlet pretreatment module, a bipolar purification module, an ozone generation device, an ozone reaction module and a split-flow conveying assembly which are communicated in sequence. The air inlet pretreatment module performs pre-filtration through a fan cabin and a filter unit, an airflow distribution cavity divided by a flow guide partition plate and an electromagnetic sterilization cavity with a magnetic pole partition plate are arranged in the bipolar purification module, and the cathode discharge unit and the anode discharge unit are separately arranged on the two sides of the sterilization cavity to form a bipolar electric field. The ozone reaction module comprises a rotatable source airflow guide-in machine barrel and a conical flow guide section, and ozone is intensively mixed with rotary diffusion airflow through a conical nozzle. And the split-flow conveying assembly is used for drying and distributing the purified gas through a split-flow device with a pressure enhancing pump and then conveying the purified gas to an air outlet terminal. The device disclosed by the invention realizes a four-stage purification synergistic effect and realizes gradient decomposition of pollutants.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, specifically an indoor air purification device. Background Technology

[0002] With the rapid development of society and the economy and the significant improvement of people's living standards, people's requirements for the quality of their living environment are becoming increasingly stringent. As the main places for people's daily activities, work, and rest, the air quality of the indoor environment directly affects people's health and quality of life. However, modern buildings generally adopt closed or semi-closed designs, and the continuous release of various pollutants from indoor decoration materials, furniture, and office equipment has led to increasingly serious indoor air pollution problems, becoming a major hidden danger to public health.

[0003] Existing air purification technologies mainly suffer from the following technical bottlenecks: single purification technologies are difficult to treat particulate matter, microorganisms and gaseous pollutants in a coordinated manner. For example, electrostatic dust collection generates ozone byproducts, photocatalytic oxidation efficiency is limited by contact time, and activated carbon adsorption has the problem of saturation failure. The above problems seriously restrict the treatment efficiency and engineering adaptability of purification systems under complex working conditions. Summary of the Invention

[0004] The purpose of this invention is to provide an indoor air purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An indoor air purification device includes an air intake pretreatment module, a bipolar purification module, a photocatalytic reactor, an ozone reaction module, and a diversion and delivery component arranged sequentially along an airflow path. The intake pretreatment module is located at the intake end of the bipolar purification module and is used to filter and guide the initial airflow. The bipolar purification module includes an airflow distribution chamber, an electromagnetic sterilization chamber, and an air collection and output chamber connected in sequence. A cathode discharge unit is provided between the airflow distribution chamber and the electromagnetic sterilization chamber, and an anode discharge unit is provided between the electromagnetic sterilization chamber and the air collection and output chamber, so as to form a bipolar electric field in the electromagnetic sterilization chamber to ionize and sterilize the air passing through it. An insulating cooling component is also provided in the electromagnetic sterilization chamber. The gas collection and output chamber of the bipolar purification module is fluidly connected to the input end of the photocatalytic reactor through a primary flow guide pipe; the output end of the photocatalytic reactor is fluidly connected to the input end of the ozone reaction module through a secondary flow guide pipe. The ozone reaction module includes a structural support frame, within which a reaction chamber and an airflow contact chamber are disposed; an ozone dosing module is disposed outside the reaction chamber for dosing ozone into the airflow contact chamber; the output end of the ozone reaction module is connected to a main output pipe. The diversion and delivery assembly is installed on the main output duct. The diversion and delivery assembly includes multiple air outlet terminals for distributing the purified air to different areas.

[0006] According to the indoor air purification device of the claim, the air intake pretreatment module includes a fan hull and a filter unit hull installed on its air intake side; the fan hull is provided with a spiral flow guide device, and its air outlet side is in fluid communication with the airflow distribution chamber of the bipolar purification module through an airflow diffusion port.

[0007] As a further aspect of the present invention: a plurality of flow guide baffles are provided inside the airflow distribution cavity to divide the inner cavity of the airflow distribution cavity into a plurality of vertically arranged diversion channels; corrugated support plates for supporting the diversion channels are provided on the side edges of the flow guide baffles. The electromagnetic sterilization chamber is provided with several magnetic pole partitions, which divide the inner cavity of the electromagnetic sterilization chamber into multiple sterilization channels that correspond one-to-one with the diversion channels. The end of each sterilization channel is connected to the gas collection and output chamber. The cathode discharge unit includes a cathode fixing bracket, a cathode guide tube installed between the cathode fixing brackets, and multiple cathode excitation coils installed at intervals on the cathode guide tube. The anode discharge unit includes an anode mounting sleeve, an anode guide tube installed between the anode mounting sleeves, and multiple anode excitation coils installed at intervals on the anode guide tube; wherein, the cathode excitation coil is located on the air inlet side of the electromagnetic sterilization chamber, and the anode excitation coil is located on the air outlet side of the electromagnetic sterilization chamber.

[0008] As a further aspect of the present invention: the insulating cooling assembly includes a plurality of vertically arranged cooling channels supported by a ceramic insulating frame; the cooling channels include three channels respectively located in the bottom region, top region and centerline region of the electromagnetic sterilization chamber; and the cooling channels have linearly arranged heat exchange gaps on their walls.

[0009] As a further aspect of the present invention: a source airflow inlet cylinder is rotatably disposed within the airflow contact chamber; the output end of the secondary guide pipe extends into the airflow contact chamber along the central axis of the structural support frame and communicates with the inner cavity of the source airflow inlet cylinder; Multiple radial diffusion slits are evenly distributed on the outer wall of the source airflow inlet cylinder, and the source airflow diffuses from the inner cavity into the airflow contact chamber through the diffusion slits; A rotary transmission shaft for driving the source airflow inlet cylinder to rotate is provided on the outer side of the structural support frame. The top of the airflow contact chamber is provided with a reaction product output pipe, which is connected to the input end of the main output pipe.

[0010] As a further aspect of the present invention: the ozone dosing module includes an ozone generator, the output end of which is connected to a conical nozzle via an ozone delivery pipe; an ozone premixing pipe is connected to the structural support frame, the ozone premixing pipe extends into the airflow contact chamber and forms a conical guide section at its end toward the source airflow diffusion region; The conical outlet of the conical nozzle extends into and connects with the concave region of the conical guide section; guided by the conical guide section, ozone undergoes enhanced impact and mixing with the source gas flow from the diffusion gap.

[0011] As a further embodiment of the present invention: the diversion and conveying assembly includes multiple diversion devices installed on the main output pipe; each diversion device is provided with a pressure boosting pump at its bottom, and a flow control unit is installed on the pressure boosting pump; Each distribution device has a gas dryer and a distribution branch pipe installed at its output end, and the air outlet terminal is connected to the corresponding distribution branch pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention designs an integrated device for multi-stage coupled purification, establishing a four-stage series purification system consisting of airflow distribution, bipolar electric field ionization, photocatalytic oxidation, and deep ozone reaction, effectively achieving the stepwise decomposition of pollutants; the electromagnetic sterilization chamber is symmetrically configured with discharge units, and a zoned insulation cooling scheme is used to solve the problem of heat dissipation during sterilization; a rotating diffuser cylinder and a conical flow guide coupling structure are adopted to enhance the ozone mass transfer process through momentum exchange between centrifugal force field and jet impact. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of the indoor air purification device provided in an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the intake pretreatment module provided in an embodiment of the present invention.

[0016] Figure 3This is a schematic diagram of the structure of the bipolar purification module provided in an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the airflow distribution cavity provided in an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the electromagnetic sterilization chamber provided in an embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of the ozone dosing module and the ozone reaction module provided in an embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of the structure of the diversion and conveying assembly provided in an embodiment of the present invention.

[0021] In the diagram: 1. Intake pretreatment module; 11. Fan nacelle; 12. Filter unit compartment; 13. Airflow diffusion port; 14. Spiral guide device; 2. Bipolar purification module; 21. Airflow distribution chamber; 211. Guide baffle; 212. Corrugated support plate; 213. Diversion channel; 22. Electromagnetic sterilization chamber; 221. Magnetic pole separator; 222. Sterilization channel; 23. Gas collection and output chamber; 24. Cathode discharge unit; 241. Cathode fixing bracket; 242. Cathode guide pipe; 243. Cathode excitation coil; 25. Anode discharge unit; 251. Anode mounting sleeve; 252. Anode guide pipe; 253. Anode excitation coil; 26. Insulation and cooling assembly; 261. Ceramic insulation frame; 262 1. Cooling channel; 2. Heat exchange gap; 3. Primary flow guide pipe; 4. Photocatalytic reactor; 5. Secondary flow guide pipe; 6. Ozone dosing module; 61. Ozone premixing pipe; 62. Ozone generator; 63. Ozone delivery pipe; 64. Conical nozzle; 65. Conical flow guide section; 7. Ozone reaction module; 71. Structural support frame; 72. Reaction chamber; 73. Airflow contact chamber; 74. Source airflow inlet cylinder; 75. Diffusion slot; 76. Rotary drive shaft; 77. Reaction product output pipe; 8. Main output pipe; 9. Diversion and conveying assembly; 91. Diversion device; 92. Pressure enhancement pump; 93. Flow control unit; 94. Gas dryer; 95. Distribution branch pipe; 10. Air outlet terminal. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, examples of which are illustrated in the drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or identical elements.

[0023] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0025] Example 1, please refer to Figure 1 and Figure 3 This invention provides an indoor air purification device, the core structure of which includes an air intake pretreatment module 1, a bipolar purification module 2, a photocatalytic reactor 4, an ozone reaction module 7, and a diversion and delivery assembly 9 arranged sequentially along the airflow path. The air intake pretreatment module 1 is located at the air intake end of the bipolar purification module 2 and is used to intercept particulate matter in the air and guide the airflow to enter the subsequent modules evenly.

[0026] The bipolar purification module 2 consists of an airflow distribution chamber 21, an electromagnetic sterilization chamber 22, and a gas collection and output chamber 23 connected in sequence. The airflow distribution chamber 21 is equipped with a guide plate to achieve uniform gas distribution; the electromagnetic sterilization chamber 22 is equipped with an insulating cooling assembly 26 to maintain a stable operating temperature; a cathode discharge unit 24 is arranged between the airflow distribution chamber 21 and the electromagnetic sterilization chamber 22, and an anode discharge unit 25 is arranged between the electromagnetic sterilization chamber 22 and the gas collection and output chamber 23, forming a high-intensity bipolar electric field within the electromagnetic sterilization chamber 22. This structure enables air to undergo ionization under the influence of the bipolar electric field as it passes through.

[0027] The gas collection and output chamber 23 of the bipolar purification module 2 is connected to the input end of the photocatalytic reactor 4 through the primary flow guide pipe 3. The photocatalytic reactor 4 has a built-in ultraviolet light source and a honeycomb ceramic substrate loaded with nano-titanium dioxide coating, and its output end is connected to the input end of the ozone reaction module 7 through the secondary flow guide pipe 5.

[0028] The ozone reaction module 7 is fixed to the reaction chamber 72 by a structural support frame 71. Inside the chamber is an airflow contact chamber 73 with a multi-stage baffle structure. The ozone dosing module 6 is installed outside the reaction chamber 72 and injects ozone into the airflow contact chamber 73 through a pipe. The output end of the ozone reaction module 7 is connected to the main output pipe 8. A distribution and delivery assembly 9 is installed on the main output pipe 8 and includes multiple air outlet terminals 10 controlled by intelligent air valves, enabling the on-demand distribution of purified air to different areas.

[0029] The air to be purified flows sequentially through the air intake pretreatment module 1, the electromagnetic sterilization chamber 22 of the bipolar purification module 2, the photocatalytic reactor 4, the airflow contact chamber 73 of the ozone reaction module 7, the main output pipe 8, and the diversion and conveying component 9, and is finally discharged from the air outlet terminal 10.

[0030] This embodiment designs a multi-stage synergistic purification mechanism. The intake pretreatment module 1 first physically traps large-particle pollutants. In the bipolar purification module 2, the cathode discharge unit 24 releases high-energy electrons to ionize the air and generate negative ions, while the anode discharge unit 25 generates positive ion clusters. The bipolar electric field causes the cell membranes of microorganisms to rupture and become inactive. The photocatalytic reactor 4 generates hydroxyl radicals under ultraviolet light excitation, deeply decomposing organic pollutants. The ozone reaction module 7 injects ozone into the airflow contact chamber 73, removing residual organic pollutants and odors through strong oxidation. The insulating cooling component 26 maintains the stability of the bipolar electric field through active heat dissipation, and the ozone dosing module 6 dynamically adjusts the ozone dosage based on real-time concentration detection. The diversion and delivery component 9 intelligently adjusts the airflow distribution of the outlet terminal 10 based on air quality data from each area. This embodiment achieves comprehensive pollutant removal, sequentially removing particulate matter, microorganisms, gaseous organic matter, and residual pollutants through four stages of treatment, achieving a purification efficiency of over 99.6%.

[0031] Example 2, please refer to Figures 1-5 This embodiment further optimizes the structure of the air intake pretreatment module 1 and the bipolar purification module 2 based on Embodiment 1. The air intake pretreatment module 1 is composed of a fan housing 11 and a filter unit compartment 12. The filter unit compartment 12 is installed on the air intake side of the fan housing 11 and integrates a three-stage filtration structure, including a metal pre-filter, an activated carbon filter layer, and a HEPA filter element. The fan housing 11 is equipped with a spiral flow guide device 14, which uses stainless steel spiral blades to guide the airflow to accelerate evenly through centrifugal force. The air outlet side of the fan housing 11 is connected to the airflow diffusion port 13, and its outlet end is sealed and connected to the airflow distribution chamber 21 of the bipolar purification module 2.

[0032] The airflow distribution chamber 21 is equipped with several guide baffles 211 (V-shaped bent metal plates) arranged along the airflow direction, which are fixedly supported by corrugated support plates 212 (aluminum alloy plates with corrugated surfaces), dividing the chamber into multiple vertically parallel diversion channels 213. The spacing between adjacent guide baffles 211 gradually decreases from the air inlet end to the air outlet end, forming an airflow acceleration gradient. The air outlet end of each diversion channel 213 is connected to the sterilization channel 222 of the electromagnetic sterilization chamber 22 in a one-to-one correspondence. The electromagnetic sterilization chamber 22 is equipped with several magnetic pole separators 221, dividing the chamber into multiple independent sterilization channels 222. The inner wall of each sterilization channel 222 is coated with an insulating ceramic layer to avoid electromagnetic interference.

[0033] The cathode discharge unit 24 includes a cathode fixing bracket 241, a cathode guide tube 242, and a cathode excitation coil 243. The cathode guide tube 242 extends laterally through the air inlet of the electromagnetic sterilization chamber 22 and is fixed by the cathode fixing bracket 241. The cathode excitation coil 243 is mounted around the surface of the cathode guide tube 242 at 20mm intervals, generating an alternating electric field perpendicular to the airflow direction when energized. The anode discharge unit 25 is symmetrically arranged with the cathode discharge unit 24, including an anode mounting sleeve 251, an anode guide tube 252, and an anode excitation coil 253. The anode excitation coil 253 is located on the air outlet side of the electromagnetic sterilization chamber 22, forming a bipolar electric field covering the entire sterilization flow channel 222 together with the cathode excitation coil 243.

[0034] This embodiment optimizes the airflow distribution mechanism. The spiral guide device 14 eliminates the intake vortex through centrifugal force, and the airflow diffusion port 13, in conjunction with the diversion channel 213 of the guide baffle 211, achieves laminar flow distribution, ensuring uniform airflow velocity within the bipolar electric field area. The cathode excitation coil 243 and the anode excitation coil 253 respectively generate high-frequency pulsed electric fields, forming independent closed magnetic fields in each sterilization channel 222 through the magnetic guidance of the magnetic pole separator 221, enhancing the adsorption and breakdown efficiency of charged particles on microorganisms. The modular sterilization channels 222 are designed, with each channel 222 employing an independent insulation design. The porous structure of the cathode guide tube 242 and the anode guide tube 252 promotes the diffusion of ionized gas, extending the effective exposure time of microorganisms to the electric field.

[0035] Example 3, please refer to Figure 3 and Figure 5 This embodiment optimizes the structure of the insulating cooling assembly 26 based on Embodiment 2. The insulating cooling assembly 26 includes a ceramic insulating frame 261, which is a one-piece molded aluminum nitride ceramic structure, and internally supports multiple vertically arranged cooling channels 262. The cooling channels 262 adopt a partitioned layout, with the first channel located in the bottom region of the electromagnetic sterilization chamber 22, the second channel located in the top region of the chamber, and the third channel penetrating the centerline region of the chamber.

[0036] Each cooling channel 262 has a built-in ceramic outer frame made of alumina ceramic, which has a grid-like support structure and is internally embedded with serpentine 316L stainless steel cooling pipes. The cooling pipes 265 are partially exposed as they pass through the heat exchange gap 263, forming spaced cooling points. The inlet end of the cooling pipe 265 can be connected to an external circulation pump. When the cooling medium (50% propylene glycol solution) flows through the cooling pipes, it comes into direct contact with the high-temperature gas inside the electromagnetic sterilization chamber 22 through the exposed cooling points.

[0037] The cooling channel 262 is in direct contact with the ionized high-temperature zone inside the electromagnetic sterilization chamber 22. It absorbs heat in a targeted manner through the dual effects of conduction and convection, improving local heat dissipation efficiency. The grid structure of the ceramic outer frame supports the internal cooling pipes while expanding the heat exchange surface area. Its heat exchange gap 263 guides the airflow to form a vortex, extending the heat exchange time.

[0038] For this fourth embodiment, please refer to Figure 1 and Figure 6 This embodiment describes the structure of the ozone reaction module 7 based on the aforementioned embodiments: A source airflow inlet cylinder 74 is coaxially arranged within the airflow contact chamber 73. The source airflow inlet cylinder 74 is made of high-strength aluminum alloy and is rotatably supported on the structural support frame 71 by upper and lower end bearing assemblies. The output end of the secondary guide pipe 5 extends along the central axis of the structural support frame 71, passes through the top wall of the airflow contact chamber 73, and is sealed and connected to the inner cavity of the source airflow inlet cylinder 74. The outer wall of the source airflow inlet cylinder 74 has 48 radial diffusion slits 75 evenly distributed. After being pressurized inside the cylinder, the source airflow is tangentially ejected through the diffusion slits 75.

[0039] A rotary motor is installed on the outside of the structural support frame 71, which drives the source airflow into the barrel 74 to rotate at an adjustable speed of 600-1200 r / min via a rotary transmission shaft 76. A reaction product output pipe 77 is set at the top of the airflow contact chamber 73, with its input end covering the top section of the reaction chamber 72 and its output end connected to the main output pipe 8. The ozone generator 62 (dielectric barrier discharge type) of the ozone dosing module 6 is connected to a conical nozzle 64 via an ozone delivery pipe 63. The conical nozzle 64 is made of ceramic. An ozone premixing pipe 61 is welded to the side wall of the structural support frame 71, and its end extends into the airflow contact chamber 73 to form a conical guide section 65. The conical guide section 65 has a flared opening with a cone angle of 60°. The conical outlet of the conical nozzle 64 is coaxially inserted into the concave area of ​​the conical guide section 65, and the gap between the two is controlled at 0.5 mm to form a jet coupling structure.

[0040] This embodiment utilizes a rotation-enhanced diffusion mechanism. When the source airflow is introduced into the rotating barrel 74, centrifugal force is generated, causing the airflow ejected through the diffusion slit 75 to form a spiral turbulent zone, increasing the specific surface area of ​​the gas cloud by 300% compared to static diffusion. The concave structure of the conical guide section 65 accelerates the ozone jet (flow velocity up to 25 m / s), forming an impact angle of 60°-90° with the rotating diffusion airflow. Through momentum superposition, microsecond-level forced mixing is achieved, thus constructing a dynamic reaction field. The rotating airflow forms a continuously renewed gas-liquid contact interface, extending the average residence time of ozone molecules in the airflow contact chamber 73.

[0041] Therefore, the contact area between ozone and pollutants is increased to 4.7 m² / m³, and the formaldehyde oxidation and decomposition rate reaches 98.3% (52% higher than static mixing). Rotation diffusion eliminates the flow dead zone in the airflow contact chamber 73 and eliminates mixing unevenness.

[0042] For this fifth embodiment, please refer to Figure 1 and Figure 7 Based on the above embodiments, the specific implementation structure of the diversion and conveying component 9 is designed as follows: The diversion and delivery assembly 9 includes multiple diversion devices 91 installed in parallel on the main output pipe 8. Each diversion device 91 integrates a pressure boosting pump 92 at its bottom, and a flow control unit 93 is installed at the pump outlet. The output end of the diversion device 91 is sequentially connected to a gas dryer 94 and a distribution branch pipe 95, and the air outlet terminal 10 is connected to the end of the distribution branch pipe 95 via a flange.

[0043] The pressure boosting pump 92 intelligently increases the air pressure (adjustable from 0.5-8 kPa) according to the length of the distribution branch pipe 95, overcoming pipeline resistance loss and ensuring balanced airflow at the terminal. The gas dryer 94 controls the relative humidity at 40±3%RH to prevent condensation and corrosion in the pipeline. The flow control unit 93 intelligently distributes the flow according to the indoor conditions, achieving on-demand air supply.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An indoor air purification device, comprising an air intake pretreatment module (1), a bipolar purification module (2), a photocatalytic reactor (4), an ozone reaction module (7), and a diversion and delivery assembly (9) arranged sequentially along an airflow path; characterized in that: The intake pretreatment module (1) is located at the intake end of the bipolar purification module (2) and is used to filter and guide the initial airflow; The bipolar purification module (2) includes an airflow distribution chamber (21), an electromagnetic sterilization chamber (22), and an air collection and output chamber (23) connected in sequence. A cathode discharge unit (24) is provided between the airflow distribution chamber (21) and the electromagnetic sterilization chamber (22), and an anode discharge unit (25) is provided between the electromagnetic sterilization chamber (22) and the air collection and output chamber (23) to form a bipolar electric field in the electromagnetic sterilization chamber (22) to ionize and sterilize the air passing through it. An insulating cooling component (26) is also provided in the electromagnetic sterilization chamber (22). The gas collection and output chamber (23) of the bipolar purification module (2) is fluidly connected to the input end of the photocatalytic reactor (4) through a primary guide pipe (3); the output end of the photocatalytic reactor (4) is fluidly connected to the input end of the ozone reaction module (7) through a secondary guide pipe (5). The ozone reaction module (7) includes a structural support frame (71), a reaction chamber (72) and an airflow contact chamber (73) located therein are arranged in the structural support frame (71); an ozone dosing module (6) is arranged on the outside of the reaction chamber (72) for dosing ozone into the airflow contact chamber (73); the output end of the ozone reaction module (7) is connected to the main output pipe (8). The diversion and delivery assembly (9) is installed on the main output duct (8). The diversion and delivery assembly (9) includes multiple air outlet terminals (10) for distributing the purified air to different areas.

2. The indoor air purification device according to claim 1, characterized in that: The air intake pretreatment module (1) includes a fan nacelle (11) and a filter unit nacelle (12) installed on its air intake side; the fan nacelle (11) is provided with a spiral flow guide device (14), and its air outlet side is fluidly connected to the airflow distribution chamber (21) of the bipolar purification module (2) through the airflow diffusion port (13).

3. The indoor air purification device according to claim 1, characterized in that: The airflow distribution cavity (21) is provided with a plurality of flow guide baffles (211) to divide the inner cavity of the airflow distribution cavity (21) into a plurality of vertically arranged diversion channels (213); the side edge of the flow guide baffles (211) is provided with corrugated support plates (212) for supporting the diversion channels (213). The electromagnetic sterilization chamber (22) is provided with a number of magnetic pole separators (221) to divide the inner cavity of the electromagnetic sterilization chamber (22) into a number of sterilization channels (222) that correspond one-to-one with the diversion channel (213). The end of each sterilization channel (222) is connected to the gas collection and output chamber (23). The cathode discharge unit (24) includes a cathode fixing bracket (241), a cathode guide tube (242) mounted between the cathode fixing brackets (241), and a plurality of cathode excitation coils (243) spaced apart on the cathode guide tube (242). The anode discharge unit (25) includes an anode mounting sleeve (251), an anode guide tube (252) mounted between the anode mounting sleeves (251), and a plurality of anode excitation coils (253) spaced apart on the anode guide tube (252); wherein, the cathode excitation coil (243) is located on the air inlet side of the electromagnetic sterilization chamber (22), and the anode excitation coil (253) is located on the air outlet side of the electromagnetic sterilization chamber (22).

4. The indoor air purification device according to claim 3, characterized in that: The insulating cooling assembly (26) includes multiple vertically arranged cooling channels (262) supported by a ceramic insulating frame (261); the cooling channels (262) include three channels respectively located in the bottom region, top region and centerline region of the electromagnetic sterilization chamber (22); and the cooling channels (262) have linearly arranged heat exchange gaps (263) on their walls.

5. The indoor air purification device according to claim 1, characterized in that: A source airflow inlet cylinder (74) is rotatably disposed inside the airflow contact chamber (73); the output end of the secondary guide pipe (5) extends into the airflow contact chamber (73) along the central axis of the structural support frame (71) and communicates with the inner cavity of the source airflow inlet cylinder (74); Multiple radial diffusion slits (75) are evenly provided on the outer wall of the source airflow inlet cylinder (74). The source airflow diffuses from the inner cavity into the airflow contact chamber (73) through the diffusion slits (75). A rotary transmission shaft (76) for driving the source airflow inlet cylinder (74) to rotate is provided on the outer side of the structural support frame (71). The top of the airflow contact chamber (73) is provided with a reaction product output pipe (77), which is connected to the input end of the main output pipe (8).

6. The indoor air purification device according to claim 5, characterized in that: The ozone dosing module (6) includes an ozone generator (62), the output end of which is connected to a conical nozzle (64) via an ozone delivery pipe (63); an ozone premixing pipe (61) is connected to the structural support frame (71), which extends into the airflow contact chamber (73) and forms a conical guide section (65) at its end facing the source airflow diffusion area. The conical outlet of the conical nozzle (64) extends into and connects with the concave region of the conical guide section (65); through the guidance of the conical guide section (65), ozone undergoes enhanced impact and mixing with the source airflow from the diffusion slit (75).

7. The indoor air purification device according to claim 1, characterized in that: The diversion and delivery assembly (9) includes multiple diversion devices (91) installed on the main output pipe (8); each diversion device (91) is provided with a pressure boosting pump (92) at its bottom, and a flow control unit (93) is installed on the pressure boosting pump (92). Each diversion device (91) is equipped with a gas dryer (94) and a distribution branch pipe (95) at its output end, and the air outlet terminal (10) is connected to the corresponding distribution branch pipe (95).

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