Integrated rapid purification device for particulate and gaseous pollutants in closed environment and purification method of integrated rapid purification device

Abstract

The invention discloses an integrated rapid purification device for particulate gaseous pollutants in a closed environment and a purification method of the integrated rapid purification device, a control system on a rapid purification device body comprises a frequency signal acquisition and control circuit, software design and development and a power supply, and the purification system adopts a combined purification scheme and a multi-filtration purification design; the purification system is provided with a primary filter screen, an HEPA filter screen, a deep ultraviolet adsorption layer, a long-wave ultraviolet adsorption layer, a photocatalytic decomposition layer, an activated carbon filter screen layer and an ion group generation module layer, the power supply system adopts 7805 and 7812 linear voltage stabilizing circuits to generate + 5V and + 12V, and the rapid purification device adopts a combined purification scheme and multiple filtration purification design, so that the rapid purification effect is achieved. The multi-layer combined type chemical adsorption filter screen meets the requirements of filtering dust, purifying harmful gas, killing harmful bacteria and specially removing low-odor and odor compounds, has the functions of high adsorption capacity, effectively eliminating odor gas and pathogenic bacteria, releasing negative ions and the like, and has the functions of efficient filtering, purification and sterilization.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and particularly to an integrated rapid purification device for particulate and gaseous pollutants in a closed environment and a purification method thereof. Background Technique

[0002] Air pollution, also known as atmospheric pollution, is generally defined by the International Organization for Standardization (ISO) as follows: due to human activities or natural processes, certain substances enter the atmosphere, presenting a sufficient concentration for a sufficient time, and thus harming human comfort, health, and welfare or the environment.

[0003] In other words, as long as the amount, nature, and time of a certain substance are sufficient to have an impact on humans, other organisms, or property, we can call it an air pollutant; and the phenomenon caused by its existence is air pollution.

[0004] The atmosphere is a mixture composed of a certain proportion of nitrogen, oxygen, carbon dioxide, water vapor, and solid impurity particles. For dry air, by volume, under standard conditions, nitrogen accounts for 78.08%, oxygen accounts for 20.94%, noble gases account for 0.93%, carbon dioxide accounts for 0.03%, and the volume of other gases and impurities is approximately 0.02%. Various natural changes often cause changes in the atmospheric composition.

[0005] When working in a closed environment for a long time, the content of particulate and gaseous pollutants in the closed environment increases. After these substances enter the human body through the respiratory tract, they will cause great harm to the human body. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide an integrated rapid purification device for particulate and gaseous pollutants in a closed environment and a purification method thereof, which adopt a combined purification scheme and a multi-layer filtration and purification design, and have a multi-layer combined chemical adsorption filter screen that can filter dust, purify harmful gases, kill harmful bacteria, and specifically remove low-odor and off-flavor compounds, with strong adsorption force, effectively eliminating odor gases and pathogenic bacteria, and releasing negative ions, etc., and having high-efficiency filtering, purification, and sterilization functions, so as to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An integrated rapid purification device for particulate and gaseous pollutants in a closed environment, including a rapid purification device body, a control system, a negative ion generator, a purification system, a power supply system, and a fan. The control system, the negative ion generator, the purification system, the power supply system, and the fan are provided on the rapid purification device body;

[0008] The control system includes a frequency signal acquisition and control circuit, software design and development, and a power supply;

[0009] The purification system adopts a combined purification scheme and a multi-filter purification design. The purification system is provided with a primary filter screen, a HEPA filter screen, a deep ultraviolet adsorption layer, a long-wave ultraviolet adsorption layer, a photocatalytic decomposition layer, an activated carbon filter screen layer, and an ion cluster generation module layer;

[0010] The power supply system uses 7805 and 7812 linear voltage regulator circuits to generate +5V and +12V to provide DC power supply for the whole machine;

[0011] The fan is a silent fan, designed for shock and vibration resistance and electromagnetic compatibility.

[0012] Preferably, the HEPA filter screen layer uses polypropylene fiber filter paper to adsorb suspended particulate matter and harmful gases in the air.

[0013] Preferably, the deep ultraviolet adsorption layer and the long-wave ultraviolet adsorption layer are mixed and arranged into an ultraviolet module. The deep ultraviolet adsorption layer quickly kills bacteria and viruses. The long-wave ultraviolet adsorption layer is used in combination with the next-level photocatalytic layer, and the long-wave ultraviolet adsorption layer and the deep ultraviolet adsorption layer work together synergistically to decompose bacteria, viruses, and fungi.

[0014] Preferably, the activated carbon filter screen layer adopts a molecular locking technology of composite porous graphite carbon materials.

[0015] Preferably, the ion cluster generation module layer adopts a multi-head carbon fiber technology and a cleanable structure.

[0016] Preferably, the photocatalytic decomposition layer uses porous ceramics or aluminum honeycomb as a carrier. A nano-titanium dioxide is provided on the porous filter screen of the nickel foam filter. The high-temperature calcination technology is adopted to make the nano-titanium dioxide material adhere to the filter element. The LED specific-band ultraviolet lamp is used for excitation to perform an efficient photocatalytic reaction. Under ultraviolet light irradiation, a series of photocatalytic reactions will occur on the surface of TiO 2 The following series of photocatalytic reactions will occur:

[0017] TiO 2 +hv(UV)→+TiO 2 (h+)+TiO 2 (e-)

[0018] TiO 2 (h+)+H 2 O→OH·+H++TiO 2

[0019] TiO 2 (e-)+O 2 →·O 2 - +TiO2

[0020] TiO 2 (h+) + OH- → TiO 2 + OH·

[0021] ·O 2 - + H+ → OH-

[0022] Preferably, the negative ion generator is developed by the intermittent point corona discharge method. A negative DC high voltage is output to the tip for corona discharge by using a 220V AC power supply through a rectifier oscillator and a booster, so that the air is ionized to generate air negative ions. The concentration of negative ions generated under the action of the electric field force is about 3×106 pieces / cm 3 。

[0023] Preferably, the purification method of the integrated rapid purification device for particulate and gaseous pollutants in a closed environment includes the following steps:

[0024] S1. When the polluted air enters the purification device, the primary filter inside the purification device preliminarily filters the air. The air after preliminary filtration enters the HEPA filter, and the HEPA filter uses polypropylene fiber filter paper to adsorb suspended particulate matter and harmful gases in the air;

[0025] S2. The air enters the ultraviolet module, and the long-wave ultraviolet and deep ultraviolet on the ultraviolet module act synergistically to decompose bacteria, viruses and fungi;

[0026] S3. The photocatalytic decomposition layer uses a high-strength new photocatalytic material, which is sintered on the surface of ceramic or aluminum honeycomb plates at high temperature to decompose most organic substances and bacteria;

[0027] S4. When the air passes through the activated carbon filter layer, various harmful substances in the gas are selectively adsorbed, such as hydrogen sulfide, ammonia, methanol, toluene, xylene and total hydrocarbons, etc. The activated carbon filter adsorbs most gaseous pollutants;

[0028] S5. The ion cluster generation module layer adopts multi-head carbon fiber technology and a cleanable structure, eliminating the technical defect that the amount of negative ions decreases due to dust collection on the carbon fiber heads after long-term use, and ensuring the continuous generation of negative ions.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] (1) The HEPA filter layer uses polypropylene fiber filter paper to adsorb suspended particulate matter and harmful gases in the air, and can effectively purify suspended matter and a small part of harmful substances;

[0031] (2) The deep ultraviolet adsorption layer and the long-wave ultraviolet adsorption layer are mixed and arranged into an ultraviolet module. The deep ultraviolet adsorption layer quickly kills bacteria and viruses. The long-wave ultraviolet adsorption layer is used in combination with the next-level photocatalytic layer. The long-wave ultraviolet adsorption layer and the deep ultraviolet adsorption layer outside work synergistically to decompose bacteria, viruses, and fungi. The ultraviolet module adopts a mixed arrangement of long-wave ultraviolet and deep ultraviolet. The deep ultraviolet quickly kills bacteria and viruses. The long-wave ultraviolet is mainly used in combination with the next-level photocatalytic layer. The long-wave ultraviolet and the deep ultraviolet work synergistically to decompose bacteria, viruses, and fungi, completely eliminating pathogenic bacteria without generating ozone. A reflector is used to increase the light effect, and a single-pole explosion-proof and earthquake-resistant design is adopted;

[0032] (3) The ion cluster generation module layer adopts multi-head carbon fiber technology and a cleanable structure, eliminating the technical defect that the negative ion amount decreases due to dust collection on the carbon fiber heads after long-term use, ensuring continuous generation of negative ions;

[0033] (4) The rapid purification device adopts a combined purification scheme and a multi-layer filtration and purification design, meeting the requirements of filtering dust, purifying harmful gases, killing harmful bacteria, and specifically removing low-odor and odoriferous compounds with a multi-layer combined chemical adsorption filter screen. It has strong adsorption force, effectively eliminates odoriferous gases and pathogenic bacteria, and releases negative ions, etc., with the functions of high-efficiency filtration, purification, and sterilization. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of the main body of the rapid purification device of the present invention;

[0035] Figure 2 is a schematic functional structural diagram of the device of the present invention;

[0036] Figure 3 is a schematic diagram of the effect of deep ultraviolet on bacteria and viruses of the present invention;

[0037] Figure 4 is a schematic structural diagram of the multi-stage purification treatment module of the present invention;

[0038] Figure 5 is a schematic diagram of the internal air flow of the air purification of the present invention.

[0039] In the figure: 1. Main body of the rapid purification device; 2. Control system; 3. Negative ion generator; 4. Purification system; 5. Power supply system; 6. Fan. Detailed Embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figures 1 - 5 , the present invention provides a technical solution: an integrated rapid purification device for particulate and gaseous pollutants in a closed environment, including a rapid purification device body 1, a control system 2, an anion generator 3, a purification system 4, a power supply system 5, and a fan 6. The control system 2, the anion generator 3, the purification system 4, the power supply system 5, and the fan 6 are provided on the rapid purification device body 1.

[0042] The control system 2 includes a frequency signal acquisition and control circuit, software design and development, and a power supply

[0043] The anion generator 3, the purification system 4 adopts a combined purification scheme and a multi-stage filtration purification design. The purification system 4 is provided with a primary filter screen, a HEPA filter screen, a deep ultraviolet adsorption layer, a long-wave ultraviolet adsorption layer, a photocatalytic decomposition layer, an activated carbon filter screen layer, and an ion cluster generation module layer. The power supply system 5 uses 7805 and 7812 linear voltage regulator circuits to generate +5V and +12V to provide DC power supply for the whole machine. The fan 6 is a silent fan with anti-shock vibration and electromagnetic compatibility design.

[0044] The HEPA filter screen layer uses polypropylene fiber filter paper to adsorb suspended particles and harmful gases in the air, and can effectively purify suspended substances and a small part of harmful substances.

[0045] The deep ultraviolet adsorption layer and the long-wave ultraviolet adsorption layer are arranged in a mixed manner to form an ultraviolet module. The deep ultraviolet adsorption layer quickly kills bacteria and viruses. The long-wave ultraviolet adsorption layer is used in combination with the next-stage photocatalytic layer. The long-wave ultraviolet adsorption layer and the deep ultraviolet adsorption layer cooperate synergistically to decompose bacteria, viruses, and fungi. The ultraviolet module adopts a mixed arrangement of long-wave ultraviolet and deep ultraviolet. The deep ultraviolet quickly kills bacteria and viruses. The long-wave ultraviolet is mainly used in combination with the next-stage photocatalytic layer. The long-wave ultraviolet and the deep ultraviolet cooperate synergistically to decompose bacteria, viruses, and fungi, completely eliminating pathogenic bacteria without ozone generation. A reflector is used to increase the light effect, and a single-pole explosion-proof and earthquake-resistant design is adopted.

[0046] The long-wave ultraviolet adsorption layer and deep ultraviolet adsorption layer on the ultraviolet module use LEDs as semiconductor light-emitting devices, with a 24-volt voltage design. Its core is a special pn junction. Holes and electrons are injected into the active region between them using the p-type layer and n-type layer respectively. It adopts a flip-chip structure, with the substrate on top to conduct light and the electrodes at the bottom to connect the circuit. This structure can achieve better heat dissipation. Deep ultraviolet is a broad-spectrum disinfection solution. DNA and RNA are the genetic materials of all organisms. Destroying the DNA or RNA molecules in bacteria or viruses can effectively kill or inactivate them. Bases are the basic components of the long chains of DNA and RNA. The bases in DNA are adenine, guanine, cytosine, and thymine, and in RNA are adenine, guanine, cytosine, and uracil. Research shows that both purines and pyrimidines absorb ultraviolet light in the UVC and UVB bands, and the absorption rate of pyrimidines is higher. Therefore, the main photochemical products are from the reactions of pyrimidines. After ultraviolet irradiation, cyclobutane pyrimidine dimers and pyrimidine-pyrimidinone photoproducts will be generated, which will damage the structures of DNA and RNA molecules, affect DNA replication and RNA transcription and translation, and ultimately lead to cell apoptosis or virus inactivation.

[0047] The activated carbon filter layer uses the molecular locking technology of composite porous graphite carbon materials, which has the characteristics of a large specific surface area and strong adsorption capacity. It can selectively adsorb various substances in the gas, such as hydrogen sulfide, ammonia, methanol, toluene, xylene, and total hydrocarbons. The activated carbon filter can adsorb most gaseous pollutants. Utilizing the high selectivity of the composite adsorption material, different types of materials show different efficiencies in air separation with their unique pore sizes, cavity volumes, and surface areas. For harmful organic substances such as formaldehyde, benzene series, hydrogen sulfide, and ammonia, corresponding molecular sieves are developed to lock formaldehyde and benzene series in the molecular sieves.

[0048] The ion cluster generation module layer adopts multi-head carbon fiber technology and a cleanable structure, eliminating the technical defect that the amount of negative ions decreases due to dust collection on the carbon fiber heads after long-term use, and ensuring continuous generation of negative ions.

[0049] The photocatalytic decomposition layer uses porous ceramics or aluminum honeycombs as carriers. Nano-titanium dioxide is provided on the porous filter of the nickel foam filter. Using high-temperature calcination technology, the nano-titanium dioxide material is attached to the filter element. It is excited by an LED ultraviolet lamp in a specific band for efficient photocatalytic reaction. Under ultraviolet light irradiation, a series of photocatalytic reactions will occur on the surface of TiO 2 as follows:

[0050] TiO 2 +hv(UV)→+TiO 2 (h+)+TiO 2 (e-)

[0051] TiO 2 (h+)+H2 O→OH·+H++TiO 2

[0052] TiO 2 (e-)+O 2 → ·O 2 - +TiO 2

[0053] TiO 2 (h+)+OH-→TiO 2 +OH

[0054] ·O 2 - +H+→OH-

[0055] The principle of nano-titanium dioxide degradation of pollutants: When exposed to ultraviolet light with a wavelength less than 387nm, the anatase TiO 2 The valence band electrons (e - ) is excited to the conduction band and leaves a hole in the valence band (h + ), the electrons (e - ) can directly reduce organic matter or react with electron acceptors, and the holes (h + ) can oxidize water and OH ions into OH· free radicals. The generated OH· free radicals are very active (the standard redox electrode potential is 2.8eV) and can degrade almost all organic matter. In addition, photoexcited electrons (e - ) also has high activity and reduction ability, and can also react with TiO 2 Oxygen molecules adsorbed on the surface or in the aqueous solution react. Oxygen molecules reduce hydrogen ions and can also produce OH· free radicals. Photoexcitation generates photogenerated electron-hole pairs. The following two types of reactions may occur next. It may proceed according to the photocatalytic reaction path or produce photogenerated electron-hole recombination. The whole process is very short, generally in the order of nanoseconds to picoseconds. The OH· free radicals generated by the reaction can penetrate the cell and virus surface structure envelope, thereby effectively blocking and eliminating bacteria and viruses, thereby achieving the function of sterilization and disinfection. The process continues, and various volatile organic compounds in the air can be decomposed into non-toxic and pollution-free water and carbon dioxide. The whole process only consumes light energy and does not consume titanium dioxide as a catalyst.

[0056] The filter does not need to be replaced and is washable. It is long-lasting and effective. It can eliminate all kinds of bacteria, viruses, fungi, decompose organic pollutants such as benzene, ethylene oxide, formaldehyde, bad odors and other impurities, and keep the air fresh for a long time.

[0057] During the R & D process of the activated carbon filter layer, it was initially planned to impregnate the surface of activated carbon with a certain concentration and attach copper ion and zinc ion compounds to its surface through a special process, so that it has a strong redox function at low temperatures. Since the oxygen-containing functional groups on the surface of activated carbon have a great influence on the adsorption performance, the content of oxygen-containing functional groups on the surface has changed after modification, thus improving its adsorption performance for malodorous gases such as hydrogen sulfide and ammonia. Through a variety of physical and chemical modification methods, an adsorption module with high performance was trial-produced. Activated carbon with a large specific surface area, the highest pore volume ratio, good wear resistance, good air permeability, high adsorption efficiency and long service life was used. On this basis, efficient removal can be achieved only by impregnating the activated carbon. This study plans to impregnate alkali (NaOH, ammonia) to improve the adsorption capacity for H 2 S and methanethiol, and impregnating phosphoric acid, CO 2 can improve the adsorption effect for ammonia and trimethylamine. The activated carbon impregnated with K 2 CO 3 has significantly improved the effect of removing H 2 S. The adsorption layer has good adsorption performance for hydrogen sulfide and ammonia that ordinary activated carbon cannot adsorb, and the air quality has been deeply purified.

[0058] The negative ion generator 3 is developed by the intermittent point corona discharge method. The discharge purification utilizes the microscopic high temperature, charged ions, strong ultraviolet rays and high-concentration ozone of the micro arc to achieve the disinfection of the air and the purification of pollutants such as formaldehyde, benzene, TVOC, PM2.5, PM0.3, radioactive dust, odor, NO2, etc. The negative ion generator is developed by the intermittent point corona discharge method. The 220V AC power supply is rectified by the oscillator and the booster to output a negative DC high voltage to the tip for corona discharge, ionizing the air to generate air negative ions. Under the action of the electric field force, the generated negative ion concentration is about 3×10 6 pcs / cm 3 , and this device does not generate ozone, has low noise, and the rated power is less than 1W. It can work in an environment with a temperature of -10°C - 60°C and a humidity of 20% - 90%. Under the action of the electric field force, the generated negative ion concentration is about 3×106 pcs / cm 3， This device does not generate ozone, has low noise, and the rated power is less than 1W. It can work in an environment with a temperature of -10°C - 60°C and a humidity of 20% - 90%.

[0059] The software design of the rapid purification device body 1 mainly includes the main program control module, the acquisition signal processing module, the infrared receiving module, the operation module, the detection result display interface module, etc. The internal installation and fixing structure and the outer packaging structure are designed for the integration of each part of the equipment. At the same time, the equipment needs to solve the problems of good heat dissipation, ventilation and electromagnetic compatibility. The equipment adopts a silent fan, anti-shock vibration and electromagnetic compatibility design.

[0060] Purification method of an integrated rapid purification device for particulate and gaseous pollutants in a closed environment:

[0061] When the polluted air enters the interior of the purification device, the primary filter inside the purification device preliminarily filters the air. The air that has been preliminarily filtered enters the HEPA filter, and the HEPA filter uses polypropylene fiber filter paper to adsorb suspended particulate matter and harmful gases in the air.

[0062] The air enters the ultraviolet module. The long-wave ultraviolet and deep ultraviolet on the ultraviolet module act synergistically to decompose bacteria, viruses, and fungi. The photocatalytic decomposition layer uses a high-strength new photocatalytic material, which is sintered on the surface of ceramic or aluminum honeycomb plates at high temperature to decompose most organic substances and bacteria.

[0063] When the air passes through the activated carbon filter layer, it selectively adsorbs various harmful substances in the gas, such as hydrogen sulfide, ammonia, methanol, toluene, xylene, and total hydrocarbons, etc. The activated carbon filter adsorbs most gaseous pollutants.

[0064] The ion cluster generation module layer adopts multi-head carbon fiber technology and a cleanable structure, eliminating the technical defect that the amount of negative ions decreases due to dust collection on the carbon fiber heads after long-term use, and ensuring the continuous generation of negative ions.

[0065] The rapid purification device adopts a combined purification scheme and a multi-layer filtration and purification design, meeting the requirements of filtering dust, purifying harmful gases, killing harmful bacteria, and having a multi-layer combined chemical adsorption filter specifically for removing low-odor and odor compounds. It has strong adsorption force, effectively eliminates odor-causing gases and pathogenic bacteria, and releases negative ions, etc., and has the functions of high-efficiency filtration, purification, and sterilization.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated rapid purification device for particulate and gaseous pollutants in a closed environment, comprising a rapid purification device body (1), a control system (2), a negative ion generator (3), a purification system (4), a power supply system (5), and a fan (6), characterized in that: The rapid purification device body (1) is provided with a control system (2), a negative ion generator (3), a purification system (4), a power supply system (5), and a fan (6); The control system (2) includes frequency signal acquisition and control circuit, software design and development, and power supply; The purification system (4) adopts a combined purification scheme and a multiple filtration purification design. The purification system (4) is provided with a primary filter, a HEPA filter, a deep ultraviolet adsorption layer, a long-wave ultraviolet adsorption layer, a photocatalytic decomposition layer, an activated carbon filter layer, and an ion group generation module layer; The power supply system (5) uses 7805 and 7812 linear voltage regulator circuits to generate +5V and +12V to provide DC power supply for the whole machine; The fan (6) is a silent fan, with shock and vibration resistance and electromagnetic compatibility design.

2. The integrated rapid purification device for particulate and gaseous pollutants in a closed environment according to claim 1 is characterized by: The HEPA filter layer utilizes polypropylene fiber filter paper to adsorb suspended particles and harmful gases in the air.

3. The integrated rapid purification device for particulate and gaseous pollutants in a closed environment according to claim 1 is characterized in that: The deep ultraviolet adsorption layer and the long-wave ultraviolet adsorption layer are mixed and arranged into an ultraviolet module. The deep ultraviolet adsorption layer quickly kills bacteria and viruses. The long-wave ultraviolet adsorption layer and the next-level photocatalytic layer are used in conjunction. The long-wave ultraviolet adsorption layer and the deep ultraviolet adsorption layer work synergistically to decompose bacteria, viruses and fungi.

4. The integrated rapid purification device for particulate and gaseous pollutants in a closed environment according to claim 1 is characterized in that: The activated carbon filter layer adopts composite porous graphite carbon material molecular locking technology.

5. The integrated rapid purification device for particulate and gaseous pollutants in a closed environment according to claim 1 is characterized in that: The ion group generating module layer adopts multi-head carbon fiber technology and a cleanable structure.

6. The integrated rapid purification device for particulate and gaseous pollutants in a closed environment according to claim 1 is characterized by: The photocatalytic decomposition layer uses porous ceramics or aluminum honeycombs as carriers, and nano-titanium dioxide is arranged on the porous filter of the nickel foam filter. The high-temperature calcination technology is used to make the nano-titanium dioxide material adhere to the filter element, and LED ultraviolet lamps with specific wavelengths are used for excitation to carry out efficient photocatalytic reactions. Under ultraviolet light irradiation, the TiO2 surface will produce the following series of photocatalytic reactions: TiO2+hv(UV)→+TiO2(h+)+TiO2(e-) TiO2(h+)+H2O→OH·+H++TiO2 TiO2(e-)+O2→·O2 - +TiO2 TiO2(h+)+OH-→TiO2+OH· ·O2 - +H+→OH- 7. The integrated rapid purification device for particulate and gaseous pollutants in a closed environment according to claim 1 is characterized by: The negative ion generator (3) is developed by using the intermittent corona discharge method, using a 220V AC power supply to output negative DC high voltage to the tip through a rectifier oscillator and a booster to perform corona discharge, so that the air is ionized to generate air negative ions. The concentration of negative ions generated under the action of the electric field force is about 3×10 6 Pieces / cm 3 .

8. The purification method for realizing the integrated rapid purification device for particulate and gaseous pollutants in a closed environment as claimed in claim 1 comprises the following steps: S1. When polluted air enters the purification device, the primary filter inside the purification device performs preliminary filtration on the air. The air after preliminary filtration enters the HEPA filter, which uses polypropylene fiber filter paper to absorb suspended particles and harmful gases in the air. S2, the air enters the UV module, and the long-wave UV and deep UV on the UV module work together to decompose bacteria, viruses and fungi; S3, the photocatalytic decomposition layer uses high-strength new photocatalytic materials, sintered at high temperature on the surface of ceramic or aluminum honeycomb panels to decompose most organic matter and bacteria; S4. When air passes through the activated carbon filter layer, it selects to adsorb various harmful substances in the gas, such as hydrogen sulfide, ammonia, methanol, toluene, xylene and total hydrocarbons. The activated carbon filter adsorbs most gaseous pollutants; S5. The ion group generation module layer adopts multi-head carbon fiber technology and a cleanable structure, which eliminates the technical defect that the carbon fiber head collects dust after long-term use, resulting in a decrease in the amount of negative ions, and ensures the continuous generation of negative ions.

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