521 results about "Air decontamination" patented technology

The invention relates to the technical field of ward air purification systems, and discloses a ward air purification system which comprises an environment sensing module, a purification path planning module, a filter unit configuration module, a purification execution module, a dynamic adjustment module, a state monitoring module and a feedback control module. The environment sensing module obtains ward space information to construct an air flow topology; the purification path planning module calls air quality data to label the topology; the filter unit configuration module sets purification nodes and adjustment intervals; the purification execution module implements basic purification; the state monitoring module analyzes data to determine operation state characteristics, and the feedback control module generates monitoring records and performs visual feedback. The system can accurately perceive the air quality of the ward, scientifically plan the purification path, dynamically adjust the purification strategy, effectively improve the air quality of the ward and guarantee the health of patients and medical staff, and has high practical value.

The invention belongs to the field of air purification, and relates to module combined type comprehensive purification equipment and a purification method thereof.The module combined type comprehensive purification equipment is characterized in that a first gas sensor is arranged in a harmful gas collecting header pipe, and a second gas sensor is arranged in a pipeline between an exhaust port of a module combined type washing tower and a third electric control three-way valve; the first gas sensor and the second gas sensor are electrically connected with the ARM processor, and the ARM processor controls opening and closing of the module combined type washing tower, the mixing atomizing chamber and the module combined type adsorption box and controls opening and closing of the first electric control three-way valve, the second electric control three-way valve and the third electric control three-way valve. According to the method, the comprehensive harmful gas treatment sequence is as follows: firstly, acidic or alkaline dirt is removed, and then, activated carbon particle filtration and adsorption are performed. According to the invention, diversified, staged and complicated mixed harmful waste gas can be automatically and effectively purified.

The utility model discloses a multi-station cyclone smoke purifier, relates to the technical field of cyclone dust collectors, and aims to solve the technical problem that the smoke air purification effect is influenced due to the fact that the centrifugal force of air entering the purifier is easy to be insufficient at present. Comprising a cyclone cylinder, a filtering mechanism arranged on the cyclone cylinder and a discharging mechanism installed at the lower end of the cyclone cylinder, the upper portion of the cyclone cylinder is cylindrical, the lower portion of the cyclone cylinder is conical, a spiral pipe is installed at an air inlet of the cyclone cylinder, and the filtering mechanism comprises a filtering pipe arranged at the upper end of the cyclone cylinder. And a filter cylinder is arranged in the filter pipe, a cover plate is installed at the upper end of the filter pipe through bolts, a second exhaust pipe is installed at the upper end of the cover plate, and a first exhaust pipe is installed at the upper end of the cyclone cylinder in an embedded mode. The utility model has the advantages that the centrifugal force after smoke air enters can be increased, so that the air can rotate at a high speed for smoke purification, and the smoke purification effect can be ensured.

The invention relates to the technical field of automobile air purification, and particularly discloses a filtering material, a preparation method of the filtering material and a novel automobile air conditioner multi-effect catalytic formaldehyde removal filter. The filtering material comprises a PET (Polyethylene Terephthalate) supporting layer, a gas filtering layer and a PP (Polypropylene) electrostatic filtering layer which are arranged in sequence, the gas filtering layer is prepared from the following raw materials in parts by weight: 30 to 90 parts of activated carbon and 10 to 70 parts of manganese catalyst. The gas filtering layer composed of the activated carbon and the manganese catalyst is matched with the filtering material composed of the PET supporting layer and the PP electrostatic filtering layer, four gases of n-butane, methylbenzene, sulfur dioxide and nitrogen dioxide can be adsorbed, the manganese catalyst degrades formaldehyde at normal temperature, meanwhile, the reaction on the formaldehyde is a catalytic reaction, and the environment-friendly effect is achieved. Therefore, the filter material disclosed by the invention also has longer service life, so that a filter made of the filter material has a better formaldehyde removal effect and longer service life.

The invention provides an air purification method and device, terminal equipment and a storage medium, and is suitable for the technical field of data processing.The method comprises the steps that initial indoor pollutant concentration information is obtained according to current indoor air environment information, current operation state information and a target indoor pollutant concentration prediction model; screening the initial indoor pollutant concentration information to obtain target indoor pollutant concentration information; and according to the target indoor pollutant concentration information and the indoor volume information, indoor ventilation quantity information is obtained, and indoor air purification treatment is carried out. According to the method, the internal relation among the indoor air environment information, the operation state information and the indoor air pollutant concentration change in the operating room is mined through the target indoor pollutant concentration prediction model, and the pollutant concentration change in the operating room is accurately predicted, so that the indoor ventilation quantity information is dynamically calculated for timely air purification; the timeliness and effectiveness of air purification in the operating room are improved, and the infection risk of a patient is reduced.

The invention belongs to the technical field of air purification, and discloses a nitrogen-doped MOF derived hollow porous carbon-rare earth metal doped MnO2-graphene aerogel composite material as well as a preparation method and application thereof. The preparation method provided by the invention comprises the following steps: taking a nitrogen-containing organic heterocyclic ligand, a nitrogen doping agent, a non-noble metal salt compound and chitosan, carrying out a first hydrothermal reaction, carrying out tannic acid etching and first calcination treatment, carrying out MnO2 in-situ growth on the obtained nitrogen-doped MOF derived hollow porous carbon material, and introducing a rare earth metal salt compound to obtain the nitrogen-doped MOF derived hollow porous carbon material. And finally, taking the obtained nitrogen-doped MOF derived hollow porous carbon-rare earth metal doped MnO2 composite material, graphene oxide and a reducing agent to carry out second hydrothermal reaction, ethanol soaking, freezing and freeze-drying treatment to obtain the nitrogen-doped MOF derived hollow porous carbon-rare earth metal doped MnO2 composite material. The nitrogen-doped MOF-derived hollow porous carbon-rare earth metal doped MnO2-graphene aerogel composite material has excellent adsorption and catalytic degradation activity on TVOC (Total Volatile Organic Compounds) such as formaldehyde and the like, and the composite material has a good application prospect in air purification.

The invention relates to the technical field of air purification, and discloses a space air particle differentiation system and a control method thereof.The space air particle differentiation system comprises an air particle separation module and a control module, the air particle separation module comprises an air inlet, a cyclone separation barrel and a detachable dust collection barrel, the cyclone separation barrel separates particles in air through centrifugal force classification, and the separated particles fall into the bottom dust collection barrel; the ultraviolet catalysis module comprises an ultraviolet reaction chamber, the inner wall of the ultraviolet reaction chamber is coated with a photocatalyst, and a UV-C light source is configured and used for decomposing organic pollutants and microorganisms; the electron-ozone reaction module comprises a mixed flow pipeline fan and an exhaust port, the mixed flow pipeline fan forms negative pressure airflow in the system, and purified air is exhausted through the exhaust port. Through cooperation of cyclone separation, ultraviolet catalysis and electron-ozone reaction, large particles are removed through cyclone separation, organic matter is decomposed through ultraviolet catalysis, microorganisms and superfine particles are oxidized and decomposed in a reaction chamber through electron flow and ozone, the maintenance period is prolonged, and efficient consumable-free purification is achieved.

The invention relates to the technical field of livestock and poultry breeding environment control, and discloses a meat duck shed energy-saving ventilation system and method based on air purification and reuse, and the method comprises the steps: carrying out the time-sharing collection of the temperature, humidity and ammonia gas, carbon dioxide and dust concentration of each ventilation region in a meat duck shed, and recognizing the abnormal air flow and pollution accumulation points; air is guided in a partitioned mode according to the pollution type and the flow direction, dust-containing air is separated in the mode that gravity settling and primary filtering are combined, wet air is subjected to circulating condensation treatment, and high-concentration ammonia gas flow is subjected to adsorption or chemical neutralization treatment; a multi-stage closed-loop circulation is formed through the opening-degree-variable air valve and the multi-speed circulating fan; in the backflow process, the recycled air and the fresh air are mixed in proportion through an adjustable air mixing pipeline; and the ventilation paths, the filtering units and the air partition conditions are analyzed regularly, and the cleaning period, the flow dividing proportion and the circulating fan operation mode are adjusted. The device has the advantage of improving the purification efficiency.

The utility model belongs to the field of air purification, and relates to an air purification assembly and an air purifier. The air purification assembly comprises a primary filter screen layer, a graphene manganese-based filter screen layer and a graphene manganese-based purification screen layer which are stacked in sequence; the graphene manganese-based filter screen layer is a filter screen layer formed by a graphene manganese-based material, and the graphene manganese-based material comprises a porous framework, and graphene and a manganese-based catalyst which are loaded on the porous framework; the graphene manganese-based purification net layer comprises an elastic framework, a gap is formed in the elastic framework, the gap is filled with a purification material, and the purification material is a composite material of graphene, activated carbon and a manganese-based catalyst. The air purification assembly provided by the utility model can quickly adsorb and purify peculiar smell in air, simultaneously realizes a good antibacterial effect, prevents mould breeding, purifies the peculiar smell of pets, and ensures a healthy living space at the same time.

The invention relates to the technical field of air purifying materials, in particular to a negative oxygen ion air purifying agent and a preparation method thereof.The negative oxygen ion air purifying agent is prepared from ethyl cellulose, hydroxyethyl acrylate, citric acid activated bentonite, beta-cyclodextrine, neodymium-doped tourmaline powder, modified plant essential oil, propylene glycol and carboxymethylcellulose. Sodium polyaspartate and a pH buffer agent. According to the invention, through a triple technology of terpene-free essential oil selection, metal ion modification and beta-cyclodextrin coating, the problem of negative ion consumption of traditional essential oil is avoided, and the release amount and durability of negative oxygen ions are remarkably improved through a catalytic synergistic effect.

The utility model discloses a dust and volatile organic compound collecting device for a coating production line, which belongs to the technical field of chemical production and comprises a support frame, a collecting box and a double-shaft motor are fixedly connected to the middle of the support frame close to the upper side and the lower side respectively, the dust collection device comprises a supporting frame, a dust collection box is arranged in the middle of the supporting frame, an air pump is fixedly connected to one side of the middle of the supporting frame, reciprocating lead screws are arranged on the two sides of the supporting frame correspondingly, a purification mechanism is arranged in the middle of the face, opposite to the air pump, of the collection box, and corrugated pipes are fixedly connected to the two sides of the collection box correspondingly. The collection dead angles are reduced, the collection effect of harmful substances around the coating production line is improved, the air purification assembly is arranged, harmful gas can be collected and filtered, the treatment effect is improved, and meanwhile the purification assembly is simple in structure and convenient to replace.

The application provides an adsorption and photocatalysis synergic air purification material and a preparation method and application thereof, and belongs to the technical field of air purification. The adsorption and photocatalysis synergic air purification material comprises a manganese oxide compound, graphite phase carbon nitride, activated carbon and a periodic acid layer; wherein the manganese oxide compound and the graphite phase carbon nitride form a heterojunction, and are attached to the inner and outer surfaces of the activated carbon; and the periodic acid layer wraps the manganese oxide compound and the graphite phase carbon nitride forming the heterojunction and the activated carbon.

The invention provides a plasma-based air filtering device, and relates to the technical field of gas purification devices, the plasma-based air filtering device comprises a multi-stage filtering layer shell, and a catalytic filtering layer, an activated carbon particle filtering layer, an HEPA filtering layer and a flexible plasma filtering layer are independently and detachably mounted on the multi-stage filtering layer shell to form a multi-collaborative filtering system; harmful substances adsorbed in the activated carbon particles are decomposed and eluted through plasmas generated by the flexible plasma filtering layer, so that the activated carbon particles are recycled. According to the air purification device, harmful substances in gas are effectively adsorbed and filtered, activated carbon particles in the activated carbon particle filtering layer can be eluted and purified, the activated carbon particles can be recycled for multiple times, and therefore the air purification cost is reduced, and in addition, compared with a common illumination elution mode in life, the elution mode has the advantage that the purification efficiency is improved. The elution effect is better.

The invention discloses a nanometer aeration river water quality purification system based on water quality linkage, and relates to the technical field of water quality purification. The system comprises a comprehensive water quality module, a dissolved oxygen module, a local control module, an air purification module, an oxygen and ozone preparation module, an air source selection mixing module, a nano bubble module, a jet flow power module and a water quality central regulation and control module. The system dynamically adjusts the pollutant concentration by collecting water quality parameters, adjusting the aeration intensity, generating high-purity oxygen and ozone and optimizing the gas source mixing proportion and the bubble diffusion process. By combining a purification response signal, energy consumption optimization and an ecological balance cost function, an efficient, energy-saving and environment-friendly water quality purification effect is achieved. By combining a nano bubble technology, intelligent control and energy efficiency optimization, efficient, energy-saving and environment-friendly river water purification is realized, and meanwhile, water ecological restoration and environmental influence are considered.

The invention relates to the technical field of air purification, in particular to an air purification material and a preparation method and application thereof.The air purification material at least comprises modified chitosan, manganese ions (Mn < 2 + >) and cerium ions (Ce < 3 + >) are evenly loaded on the modified chitosan, and the air purification material is prepared by taking chitosan as a raw material through a hydrothermal method. The prepared adsorbent has good adsorption effect on various volatile organic compounds, is better in stability, can be used in high-humidity and acid environments, and is expected to play a greater role in the field of air purification.

The invention provides a regional purification quality evaluation method and device of an air purification unit. According to the method, target area division information and concentration data of pollutants such as fine particulate matters, carbon dioxide and volatile organic compounds are acquired, multi-pollutant concentration fusion analysis is performed based on a preset air quality standard, and a fusion concentration index reflecting spatial distribution characteristics is generated. And extracting the pollution accumulation rate of each partition according to the time change trend of the index, identifying the pollution propagation direction between adjacent partitions, and generating a regional purification quality evaluation result by cooperatively associating the two. And further combining the partition purification urgency degree and the pollution diffusion intensity in the evaluation result to formulate a regional collaborative operation strategy, and dynamically adjusting the air speed gear and the operation parameter configuration of the air purification unit corresponding to each partition. According to the technical scheme provided by the invention, the efficiency and precision of regional purification quality evaluation can be improved.

The invention discloses an air peculiar smell purification device based on activated carbon adsorption, and relates to the technical field of activated carbon adsorption separation, the air peculiar smell purification device comprises a purification cylinder, a rear cover is fixedly connected to one side of the purification cylinder, a fan is fixedly connected to one side, close to the rear cover, of the purification cylinder, an activated carbon filter element is arranged in the purification cylinder, and a front cover is fixedly connected to the other side of the purification cylinder; the purification cylinder is fixedly connected with a fixed cylinder, clamping grooves distributed in the circumferential direction are formed in the fixed cylinder, and the fixed cylinder is movably connected with supporting frames symmetrically distributed along the fixed cylinder. In the process of efficiently capturing and separating peculiar smell airflow in air by using the activated carbon filter element, a supporting and fixing mode and a clamping and fixing mode can be freely switched according to a specific local area or an actual scene of an object, and the angle of the purification cylinder can also be adjusted, so that the specific local area or the object is efficiently purified, and the purification effect is improved. And the scene applicability of air purification and the high efficiency of local purification are integrally improved.

The invention provides a deodorant for air disinfection and deodorization and a preparation process thereof, and belongs to the technical field of air purification. Comprising the following components: a composite deodorizing material, a composite essential oil microcapsule, a surfactant, benzalkonium bromide and water. The preparation method comprises the following steps: mixing and dissolving calcium nitrate tetrahydrate and diammonium hydrogen phosphate, adding hexadecyl trimethyl ammonium bromide and ammonia water to prepare a mesoporous nano-hydroxyapatite precursor suspension, adding a zinc nitrate solution, and carrying out hydrothermal reaction and calcination to prepare a composite carrier material; when the composite essential oil is loaded into the composite carrier material by using a vacuum impregnation method, the composite essential oil can have a slow release effect, the long-acting deodorization effect of the deodorant is improved, and more adsorption sites can be provided for the composite essential oil, so that the loading rate of the composite carrier material to the composite essential oil can be remarkably improved, and the deodorization effect of the deodorant is improved. The deodorization effect of the deodorant is further improved.

The invention relates to a porous ceramic core loaded with a nano composite catalyst and a preparation method thereof, the porous ceramic core comprises a porous ceramic matrix, a nano composite catalyst layer and a surface functionalization layer in sequence, and the porous ceramic matrix is prepared by mixing, pressing and molding bamboo charcoal powder, zeolite powder, alumina powder, mullite powder and lignocellulose and then firing; the nano-composite catalyst layer is composed of g-C3N4 / TiO2 / Ag3PO4 nano-particles loaded on the surface of the porous ceramic matrix and in pore channels of the porous ceramic matrix; the surface functionalization layer is formed by nano-silver particles modified by the surface of the catalyst layer. Through hierarchical pore structure design and heterojunction energy band regulation and control, the synergistic effect of efficient photocatalytic degradation and pollutant adsorption is achieved, the degradation rate of pollutants such as formaldehyde and benzene is high, good adsorption performance, photocatalytic performance and antibacterial performance are achieved, and the preparation method is reasonable in process and easy for large-scale production and can be applied to the field of air purification.

The invention relates to the technical field of air purification, in particular to a workshop air purifier intelligent regulation and control method based on laser dust detection, and the method comprises the steps: firstly obtaining particle size grading concentration data in real time through a laser detection device, and calculating a dynamic pollution index of each monitoring point in combination with a preset weight coefficient; a pollution core area and a diffusion trend are identified according to exponential distribution, an optimal air distribution scheme is generated based on the position of the core area and the concentration gradient, meanwhile, the purifier power and the filter screen mode are adjusted in a self-adaptive mode according to the concentration change rate and the target threshold value, and control parameters are optimized regularly based on an energy consumption efficiency model and the standard reaching time; according to the invention, the concentration data of PM10, PM2.5 and PM0.5 are obtained by grading in real time through the laser dust detection device, and the comprehensive hazard index of dust is accurately quantified in combination with a dynamic weight coefficient set by a respiratory deposition medical model, so that the problem that the particle size toxicity difference cannot be distinguished in the prior art is thoroughly solved.

The invention provides an air purification system for atomic fluorescence, which relates to the field of air purification, and is characterized in that an air quality data packet is acquired and matched with a current optimal excitation wavelength combination, and then the air quality data packet is input into a light source driving module to generate a customized multi-wavelength mixed light field into a light reaction cavity. Meanwhile, original air flow is input into the light reaction cavity to obtain processed air flow, and candidate strategies closest to or most relevant to the current air quality characteristics are quickly found in a strategy semantic set in a purification strategy semantic dynamic query mode. And finally, a purification strategy, namely an optimal excitation wavelength combination, which most meets the current requirement is finally determined in a dynamic evaluation mode, so that intelligent control over a light source is achieved, and it is ensured that the system can provide the optimal purification performance in various complex air environments.

The invention relates to the technical field of proportioning control, and discloses an intelligent proportioning control method for activated carbon and a deodorant in an air purification system, which comprises the following steps of: dividing the pore size distribution of the activated carbon into three types of micropores, mesopores and macropores, and obtaining pollutant response vectors of various typical pollutants and consumption weight vectors of the pollutants to the three types of pore sizes; constructing an agent mapping knowledge base; environmental pollutants are monitored in real time, a current pollutant response vector is obtained, and an activated carbon dynamic ability portrait is generated by matching a knowledge base; identifying a new pollutant event, acquiring a response vector and an aperture consumption weight of the new pollutant event, performing efficiency prediction calculation with the dynamic capability portrait, executing three-section decision logic according to a prediction result, and outputting dynamic ratio data of the activated carbon and the deodorant; accurate prediction of functional saturation of the activated carbon is realized through multi-dimensional capability characterization, purification efficiency reduction caused by'saturation illusion 'is effectively avoided, and the comprehensive purification efficiency of an air purification system is remarkably improved.

The invention discloses an air conditioner which comprises an indoor unit and an outdoor unit. The indoor unit comprises a first air outlet and a negative oxygen water ion generating device. The first air outlet is configured to blow air-conditioning air out of the indoor space. The negative oxygen water ion generating device is arranged beside the first air outlet and is configured to provide ions for the indoor space. Wherein the air outlet direction of the air conditioner air and the air outlet direction of ion air blown out by the negative oxygen water ion generating device are independently adjusted, the negative oxygen water ion generating device is provided with an independent first air duct, and the first air duct is configured to provide air for ionization for the negative oxygen water ion generating device. The outdoor unit comprises an oxygen generator, and the oxygen generator is configured to provide oxygen for the first air duct. And under the condition that the oxygen concentration is smaller than a preset first limit value, the oxygen generator is started to provide oxygen into the first air duct. According to the air conditioner, independent control over air conditioning air and ion air can be achieved, the content of negative oxygen ions in a room can be adjusted, and the air purification effect and the human body health care effect are improved.

The invention relates to the field of air purification control, in particular to a mobile air purifier operation control method, system and equipment and a medium. The method comprises the following steps: acquiring environmental parameters through a multi-source sensor, generating a multi-dimensional operation parameter matrix by using a fuzzy control algorithm, planning an optimal moving path by using an improved AI algorithm according to spatial topology sensing data, and cooperatively adjusting related components through a PID controller. A night low-noise operation strategy, a specific algorithm calculation parameter, sleep stage identification, corresponding control and the like are provided, and a look-ahead control instruction set can be generated; the invention further comprises a corresponding operation control system, electronic equipment and a computer readable storage medium. The technical effects that the ambient air quality and the user state are accurately perceived, global coverage purification and multi-system parameter joint debugging of the air purifier are achieved, low-noise operation at night is achieved, the function is dynamically adjusted according to the sleep stage, and the air purification effect and the user use experience are improved are achieved.

The invention provides a wet dust removal device, and belongs to the technical field of air purification, the wet dust removal device comprises a dust removal mechanism used for purifying gas, the dust removal mechanism comprises a cylinder and a transmission shaft vertically and rotatably assembled in the cylinder, and the transmission shaft is fixedly provided with an atomization structure used for atomizing water and a centrifugal structure used for steam-water separation from bottom to top; a flow guide cover used for guiding water flow to the atomization structure is further arranged between the atomization structure and the centrifugal structure. According to the atomization structure, the strip-shaped rectangular holes are adopted, even if chippings and impurities enter the atomization structure, the chippings and the impurities can be discharged through the rectangular holes, and the atomization structure is prevented from being blocked; a staged continuous treatment mode is adopted, the problems that an existing filtering mechanism is prone to blockage and frequent to clean are solved, the sewage treatment efficiency is guaranteed, and stable operation of a water circulation mechanism is guaranteed.

A nitrogen oxide decomposition catalyst, a catalytic reaction system including the same, and an air purification system, wherein the nitrogen oxide decomposition catalyst includes a heterogenous metal oxide and a first metal disposed on the heterogenous metal oxide and is configured to catalyze a reaction to decompose nitrogen oxides into nitrogen and oxygen.

The invention discloses a preparation method of a high-efficiency low-temperature carbon monoxide oxidation catalyst, which comprises the following steps: carrying out surface modification on a carrier based on a selected hydrophilic surface modifier or hydrophobic surface modifier so as to regulate and control the adsorption capacity of the carrier on carbon monoxide and oxygen; based on the raw material ratio and the additive amount, the active metal component and the additive are loaded on the modified carrier, the additive amount regulates and controls the electron transfer path, and the raw material ratio regulates and controls the structural stability. Carrying out calcination treatment on the loaded precursor based on the calcination time so as to regulate and control the particle size of the catalyst crystal; and carrying out heat treatment on the calcined catalyst based on the target reaction temperature so as to regulate and control the distribution of active sites. The problem that the catalytic efficiency of a traditional catalyst is reduced due to passivation of active sites in a low-temperature environment can be remarkably solved, and the catalyst is suitable for low-temperature scenes such as mine ventilation and indoor air purification.

The present invention discloses an air purification system for achieving carbon reduction through microbial purification, which relates to the field of air purification technology and solves the problems that in the existing process of using microorganisms to purify the air, toxic and harmful substances in the air can easily affect the activity of microorganisms, different types of microorganisms have different degrees of adaptability to carbon dioxide concentrations, and microorganisms in the purified gas can easily cause harm to personnel. An air purification system for achieving carbon reduction through microbial purification comprises a purification and protection mechanism, a disinfection and air outlet mechanism, and an algae cultivation mechanism. A disinfection and air outlet mechanism is installed on the inner side of the bottom end of the purification and protection mechanism, and an algae cultivation mechanism is installed on the inner side of the upper end of the purification and protection mechanism. The present invention can effectively improve the degree of carbon reduction by using different types of microorganisms to purify the air step by step, and can disinfect and sterilize the purified air to prevent microorganisms from being adsorbed by personnel and causing harm.

The embodiment of the invention discloses a control method and device for linkage of an air purifier and outdoor air quality information, and the scheme can comprise the steps that the outdoor air quality information is obtained in real time, and the outdoor air quality information at least comprises the outdoor air quality index AQI and the PM2.5 concentration; collecting indoor air quality parameters in real time, wherein the indoor air quality parameters at least comprise indoor PM2.5 concentration, VOC concentration and temperature; based on the outdoor air quality information and the indoor air quality parameters, an air purification demand index AQDI is calculated; the AQDI is compared with a preset first threshold value and a preset second threshold value, and the operation mode of the air purifier is automatically switched according to the comparison result; wherein the numerical value of the first threshold value is larger than that of the second threshold value, and the operation modes comprise an inner circulation mode, an outer circulation mode and a pre-purification mode; historical operation data and user feedback are recorded, and weight parameters in AQDI calculation, the first threshold value and the second threshold value are dynamically adjusted through an adaptive learning algorithm.

According to the air purification device, the air treatment equipment and the control method and device of the air purification device, the discharge assembly can be used as an energy source and cooperates with a catalyst in the catalyst module to degrade peculiar smell and purify air, and the situation that a traditional adsorption technology fails after saturation is avoided; and parts such as an ultraviolet light source which are harmful to machine parts or human body health do not need to be arranged. The air purification device is provided with a first discharge assembly, a catalyst module and a second discharge assembly; the catalyst module is provided with a gas passing channel; in the gas passing direction of the gas passing channel, the catalyst module is located on the downstream side of the first discharging assembly and can cooperate with active substances generated by discharging of the first discharging assembly so as to purify the first space. In the gas passing direction of the gas passing channel, the second discharging assembly is arranged on the downstream side of the catalyst module and is arranged to be capable of discharging to generate active substances so as to purify the second space.