59 results about "Air decontamination" patented technology

The utility model relates to a kind of multi-functional high-efficiency indoor air purifier, and sub-machine system mode is used in the shell, and air state signal is transmitted by signal tower. The upper part of air purifier is two sub-machine parking spaces with automatic charging device, and the lower part is mother machine system. When air pollution is weak, sub-machine is dispatched according to the set route to start purification, and carry out inspection while passing the set target point, and feedback real-time air quality. When air pollution is strong, the air purification device of mother machine starts to work. Sub-machine system works with four air purifiers through connecting plate, and controller and detection device are installed in the center. The upper surface of air purifier is installed with power device, and power lift is provided. Mother machine system purifies air through electrostatic precipitator and formaldehyde removal module. When there are multiple pollution sources in the room, the purification degree and purification efficiency are greatly improved, and the utility model also has the functions of real-time monitoring indoor air quality, releasing negative ions, sterilization and disinfection.

An airflow system for buildings, and its method of use, is provided to provide pollution mitigation for occupants of a building. An airflow system for a building is provided, comprising: at least one air purification system that provides purified air and receives recirculated air; at least one supply air assembly that supplies purified air from the air purification system to at least one internal airflow space, the internal airflow space including one or more office cubicles, meeting rooms, and auditoriums; at least one return air assembly that returns recirculated air from at least one internal airflow space back to at least one air purification system; directional airflows formed between the supply air assembly and the return air assembly, including a first directional airflow and a second directional airflow that form one or more air barriers between occupants to provide respiratory isolation, the second directional airflow forming an airflow field around each occupant; and at least one control system that controls the airflow system. The airflow system provides pollution mitigation for each occupant.

The application discloses a graphene / Hf6Ta2O 17 The application relates to a hierarchical porous composite aerogel, a preparation method thereof and application, and relates to the technical field of functional porous materials. In the application, hafnium sources and tantalum sources are dissolved in acid, then transferred and mixed by using an alcohol solvent to prepare a precursor, and then the precursor is combined with an oxidized graphene dispersion liquid to construct a sol system, and finally, the product is prepared through hydrothermal self-assembly, solvent replacement and freeze drying. The aerogel obtained in the application has a hierarchical porous structure, and has excellent adsorption capacity and catalytic degradation efficiency for toxic agents. The material is stable in performance under extreme environments of high humidity (10%-95% RH) and variable air pressure (0.5-2 atm), overcomes the defects that traditional materials are easily disturbed by environments, and has a wide application prospect in the fields of efficient air purification and complex environment protection.

The present invention relates to an air purification catalyst composition comprising porous manganese oxide, wherein the porous manganese oxide has a pore distribution such that pores having a pore size in the range of 0 nm to 6.0 nm account for at least 75% by volume of the total pores. The invention also relates to an air purification article comprising the air purification catalyst composition, as well as a method for producing the air purification article and a method for purifying an air stream.

This invention relates to the field of data monitoring technology, specifically to an intelligent control method for workshop air purification based on environmental data. The method involves: obtaining upward trend points and concentration inflection points based on changes in concentration data sequences; identifying concentration rise periods and concentration fall periods based on the distribution characteristics of concentration inflection points; identifying suspected abnormal data points based on the differences in the trends of concentration rise and fall periods and the local data differences at the upward trend points; determining the air pollution risk level based on the quantity, interval, and concentration change characteristics of the suspected abnormal data points; and adaptively adjusting a preset concentration anomaly threshold based on the air pollution risk level to obtain an adaptive threshold. This invention adjusts ventilation power based on the adaptive threshold, thereby reducing the power consumption of the air ventilation system while improving the efficiency of air purification in the workshop.

This invention relates to the field of air purification technology and discloses a method for preparing a novel mesoporous quantum photocatalytic formaldehyde removal material, comprising the following steps: S1, preparing titanium dioxide powder; S2, preparing rGO / nTiO2 material; S3, mixing the rGO / nTiO2 material prepared in S2 with polyethylene glycol, additives, adsorbent g, and solvent D in a certain proportion to obtain the novel mesoporous quantum photocatalytic formaldehyde removal material. This novel mesoporous quantum photocatalytic formaldehyde removal material is applied to the treatment of indoor formaldehyde. The technical solution of this invention can significantly improve the degradation rate of formaldehyde and has the advantages of high stability and excellent visible light response.

The present invention relates to a cooking fume extractor hood which allows purified air to be blown into the room in which the hood is located, without recirculating said air in the vicinity of the hood and without forming an air curtain which prevents the cooking fumes from diffusing when they rise towards the hood. The cooking fume extractor hood comprises an air purification system ( 3) for purifying all the fumes entering the extractor hood and an air extraction system (3) for extracting air to the room in which said hood is located once the fumes have been purified.

This invention belongs to the field of environmental remediation material preparation technology, and provides a porous structure-controlled activated carbon for formaldehyde adsorption and its preparation method. Eutectic microparticles are prepared by co-melting a potassium-containing activator with a nitrogen-containing precursor, which can achieve in-situ low-temperature micropore etching and nitrogen atom doping during heat treatment. Simultaneously, a microgel is prepared by complexing and self-assembling tannic acid and polyethyleneimine and mild cross-linking. This microgel acts as a soft template during the carbonization stage, constructing a continuous mesoporous network and providing abundant surface alkaline sites for the carbon skeleton. Furthermore, an inorganic nano-skeleton reinforcing agent is introduced during the forming stage, and the mechanical strength of the material is improved by microgelation treatment of the particle surface. During heat treatment, a microporous-mesoporous hierarchical pore structure is formed. Through acid washing purification and surface re-alkalization treatment, activated carbon particles with highly efficient formaldehyde capture and strong locking capabilities are obtained, showing broad application prospects in the field of indoor air purification.

This invention relates to the field of air purification technology, specifically to a plasma sterilization device, an air purification module, and an air purifier. The plasma sterilization device includes sterilization modules adapted to be disposed on both sides of a filter. Each sterilization module includes: a grounding electrode adapted to the surface shape of the filter and suitable for contacting or approaching the filter; a blocking medium disposed on the side of the grounding electrode opposite to the filter; and a high-voltage electrode disposed on the side of the blocking medium opposite to the grounding electrode. This plasma sterilization device simultaneously provides sterilization modules on both sides of the filter, sterilizing from both sides simultaneously, thereby effectively and efficiently killing bacteria in the filter without harming human health.

This utility model discloses an oven for expanding the surface of PTFE air purification membrane, comprising: an oven body; an inner frame that divides the inner cavity of the oven body into an inner and outer drying chamber and a circulating air duct, wherein the inner frame is provided with an inner air inlet and an inner air outlet connecting the drying chamber and the circulating air duct, a fan is provided on the inner air inlet, and an air outlet mesh is provided on the inner air outlet; a positioning bracket assembled in the drying chamber, on which a material roll is laid, and the PTFE air purification membrane is wound on the material roll; a main ventilation pipe that connects to the circulating air duct through a ventilation port on the oven body, and a control valve is provided on it; and a heating device disposed in the circulating air duct. This utility model can solve the problem of insufficient heating uniformity of PTFE membrane during the use of existing ovens for expanding the surface of PTFE membrane, resulting in poor expansion and forming quality of PTFE membrane.

We provide an air purifier that effectively disinfects indoor spaces while preventing unnecessarily long operating times and extending the lifespan of the UV lamp. [Solution] An air purifier according to one embodiment of the present invention comprises a housing, a first sterilization unit, a second sterilization unit, a human presence sensor, and a control unit. The housing has an air intake and an air outlet, and a ventilation passage connecting the air intake and the air outlet. The first sterilization unit is positioned in the ventilation passage and irradiates ultraviolet light. The second sterilization unit is positioned in the ventilation passage and generates ions in the air. The human presence sensor detects the presence of a person in a predetermined area around the housing. The control unit determines the presence or absence of a person in the predetermined area based on the detection result of the human presence sensor, and controls the first sterilization unit and the second sterilization unit based on the determination result regarding the presence or absence of a person.

The utility model discloses a kind of adjustable air volume air exchange port devices for outer wall embedded installation belong to building outer wall ventilation technical field, including main body shell, detachable shell panel, air duct, replaceable filter module and internal diffusion type air duct.Filter module is composed of activated carbon filter and allergen filter, with multiple purification function, effectively filter PM2.5, pollen and harmful gas.The device is also provided with negative ion sheet, further improve air purification effect, internal diffusion type air duct uses guide vane or honeycomb structure, avoid cold wind direct blow, improve comfort.In addition, the device is equipped with air volume adjusting mechanism, and the air exchange amount can be flexibly controlled according to requirements.The overall design is convenient to maintain, air-tightness is good, suitable for a variety of building environment.

This utility model discloses an environmentally friendly air-purifying window structure, including a window frame and a movable window sash installed within the window frame. Air purification channels are provided at both the top and bottom of the window frame. An air inlet is located at the outer end of each air purification channel, and an air outlet is located at the inner end. An air filter device is installed inside the air purification channel. The air filter device includes a supporting base plate and a filter assembly installed on top of the supporting base plate. Two slide rails are symmetrically arranged at the bottom of the supporting base plate. Two sliding grooves are provided on the bottom wall of the air purification channel, corresponding to and slidingly engaging with the two slide rails. A sealing plate is hinged to the air outlet, used to close or open the air outlet. This utility model's environmentally friendly air-purifying window structure has a reasonable structure, can effectively purify air entering the room from the outside, and facilitates filter assembly replacement, making it highly practical.

This invention relates to an air purifier, specifically an air purifier with a self-cleaning function. It includes a purifier housing, inside which a driving component is disposed. A plurality of fan-shaped filter elements are arranged in a circular array on the driving component, and an air guide component is disposed inside the driving component. This invention forms an upward-flowing channel, a downward-flowing channel, and a closed channel through the air guide component. Outside air is filtered normally through the upward-flowing channel, while the downward-flowing channel delivers air downwards to reverse-flow through the filtered fan-shaped filter elements, blowing away dust adhering to the surface of the filter elements. The closed channel sterilizes the fan-shaped filter elements, reducing bacterial growth. During use, the rotation of the driving component moves the fan-shaped filter elements, enabling automatic replacement and cleaning of the filter elements.

The present disclosure relates to an electric roaster equipped with a dual air purification and circulation system, wherein a suction fan consists of a first suction fan and a second suction fan disposed at both sides of a lower space of a roaster main body with an oil receiver, which is disposed under oil discharge nozzles of a roasting plate, disposed therebetween, the first suction fan forms a first air circulation flow by sucking air containing oil vapor, smoke, heat and odor generated at the top of the roasting plate through the oil discharge nozzles and supplying the air back to the top of the roasting plate through first discharge holes of a heat protection plate, the second suction fan forms a second air circulation flow by sucking air containing oil vapor, smoke, heat and odor generated at the top of the roasting plate through the oil discharge nozzles and supplying the air back to the top of the roasting plate through second discharge holes of the heat protection plate, and the air containing oil vapor, smoke, heat and odor discharged from the oil discharge nozzles by the suction force of the first suction fan and the second suction fan is purified by contact with water stored in the oil receiver disposed under the oil discharge nozzles and then introduced into the first suction fan and the second suction fan.

This invention relates to the technical field of energy-saving air purification in laboratories, specifically to a method and system for energy-saving air purification in laboratories based on adaptive control. The method includes the following steps: acquiring event information indicating that an automated high-throughput processing device has stopped releasing pollutants; estimating the concentration decay trend of pollutants in the laboratory space based on the event information, preset environmental parameters, and the characteristics of the pollution source; adjusting the operating intensity of the purification equipment according to the concentration decay trend to reduce the purification intensity; acquiring environmental pollutant concentration information and comparing it with the concentration decay trend to correct the adjustment process of the purification intensity; and switching the purification equipment to a low-power operation mode when the environmental pollutant concentration reaches a preset safety level. This application achieves a balance between purification effect and energy saving.

The present application relates to a kind of air outlet structure, air purifier and control method, belong to air purification technical field, solve the technical problem of the relatively low purification efficiency of existing air purifier.The air outlet structure includes air outlet air duct;Partition, is installed in the outlet of air outlet air duct, the outlet of air outlet air duct is separated into first air outlet and second air outlet by partition, first air outlet is towards upper, second air outlet is towards side or lower;Heating part, is installed on partition, heating part is used to heat the air discharged by first air outlet.The air purifier uses above-mentioned air outlet structure, therefore, the air purification efficiency of this air purifier is higher.The control method is used to control above-mentioned air purifier, mainly according to the air temperature after being heated by heated part to regulate and control the heating efficiency of heating part, so that air purifier can realize automatic adjustment the heating temperature of the air after purification.

This invention discloses a biomimetic dual-manganese core-shell structure catalyst, its preparation method, and its application, belonging to the field of indoor air purification catalyst preparation technology. The method involves converting a MnCO3 precursor into porous Mn2O3 nanorods through programmed temperature calcination in an air atmosphere, serving as the core material. Microwave-assisted redox etching is then performed on the core material to grow vertically oriented MnO2 nanosheet shells in situ on its surface, yielding a core-shell structure intermediate. This intermediate is then acid-activated and post-treated to obtain a biomimetic dual-manganese core-shell structure Mn2O3@MnO2. This catalyst features a rationally designed structure, a controllable preparation method, and exhibits high activity, high stability, and good environmental adaptability, making it promising for applications in indoor air purification and other fields.

The application discloses a kind of antler mushroom culture room ventilation and air exchange purification device, it is related to gas purification technical field, including culture room ontology, the outside of culture room ontology is used to transport new air purification device after purification gas, the top of culture room ontology is used to be sent to the exhaust unit for indoor temperature and humidity gas to outside.This kind of antler mushroom culture room ventilation and air exchange purification device, in the process of ventilation in culture room ontology, the content of high-temperature gas in culture room ontology top is detected by the movement of light ballast, when light ballast touches pressure sensor, it is indirectly that the content of surface carbon dioxide is higher, start new air purification device and exhaust equipment, indoor high-temperature gas is discharged, and after the outside air is purified, it is transported to culture room ontology, and is gently released by multiple spray heads, accelerate indoor heat exchange while also ensure the uniformity of indoor temperature, and indoor high carbon dioxide gas can be output in time.

The application discloses a kind of plasma air disinfection device and method, air disinfection device includes cylindrical plasma generator, uniformly distributed in water storage chamber, for ionizing mixed gas to generate plasma, and to water solution is activated once;Water storage chamber is equipped with porous water-absorbing stick, and the center of porous water-absorbing stick is contacted with sheet-shaped plasma generator, and activated water solution is transported to sheet-shaped plasma generator to be activated twice and realize nanometer atomization;Cylindrical plasma generator, sheet-shaped plasma generator are connected system control module, for according to active ingredient in current water solution, concentration and the active ingredient, concentration required in spray, control first activation voltage, first activation time, and secondary activation voltage and secondary activation time.The application can realize effective air disinfection in a variety of scene environments, and air disinfection effect and environmental adaptability are considered, and use safety and convenience are improved.

This invention discloses an air purification device for building decoration and renovation, belonging to the field of air purification technology. The device includes a multi-source environmental sensing module, a central intelligent control module, a composite purification execution module, an exhaust coordination module, and a human-machine interaction and remote monitoring module. The multi-source environmental sensing module collects pollutant concentrations through a laser scattering particulate matter sensor, an electrochemical formaldehyde sensor, and a metal oxide TVOC sensor, and transmits the pre-processed data to the central intelligent control module. The central intelligent control module generates instructions based on an adaptive collaborative control algorithm to control the four-stage purification process of the composite purification execution module and the operation of the exhaust coordination module. The composite purification execution module adopts a series structure of primary filtration, high-efficiency air filtration, photocatalytic decomposition, and modified activated carbon adsorption. Each module is connected via a controller local area network bus or wireless fidelity communication, automatically switching purification modes according to the decoration stage to achieve coordinated purification and exhaust.

The present application relates to air purification agent preparation technical field, specifically relates to a long-acting air purification agent and preparation method thereof, the present application adopts core-shell-channel three-level structure, integrates physical adsorption, chemical catalysis and oxidation degradation, aims at solving the technical problems of slow-release control, complex multi-pollutant coexistence, high cost of catalytic material, secondary pollution and weak self-catalytic desorption capacity, which are easily affected by high humidity and invalid, and lack of adaptability. The purification agent mainly comprises acid-heat activated modified attapulgite clay, polyvinyl alcohol / beta-cyclodextrin hydrogel microspheres and manganese element active components. The above components synergistically act, so that the purification agent of the present application still has long-acting and stable purification performance in high humidity and complex multi-pollutant environment, is low in cost, safe and environmentally friendly, and can be widely used in the field of indoor air long-acting purification and disinfection.

The subject of the invention is an air purification cartridge characterized in that it comprises at least a partially transparent container, with at least one air inlet, filled at least in part with microalgae suspended in at least partially transparent hydrogel stabilizing composition that comprises at least one microalgae culture medium, at least one gelling agent and at least one plasticizer. The subject of the invention is also a suspendable air purification system characterized in that it comprises a housing with at least one means of attachment to the surroundings and the cartridge according to the invention interchangeably placed in the housing, the housing having a shape and size adapted for substantially stationary placement of the cartridge and having an opening allowing access of external light to the cartridge. The subject of the invention is also the use of Cyanidioschyzon merolae and / or Galdieria sulphuraria, characterized in that it is used for indoor air purification. The invention will find application in indoor air purification on the Earth and in space.

The application relates to the technical field of air purification and air pollution prevention and control, and particularly relates to a hydroxyl active particle and negative oxygen ion synergic generation method and device based on temperature and humidity closed loop regulation, which is applied to a hydroxyl active particle and negative oxygen ion synergic generation method based on temperature and humidity closed loop regulation and considering low ozone gas treatment and byproduct inhibition of an environmental protection type air treatment equipment of a civil indoor air purifier, wherein the air to be treated is first divided into a main airflow and a reaction branch airflow; then dry state excitation is carried out on the reaction branch airflow during a high-voltage pulse cluster signal conduction period, initial negative oxygen ions, ozone precursors and oxygen-containing active intermediates are generated; a humidifying medium is input to the downstream of a discharge gap during an intermittent period between clusters, and subsequent conversion is realized in an interface conversion zone through a water-retaining interface and a catalytic surface; meanwhile, the ozone concentration of the front and rear sections and the single cluster discharge charge are collected, and closed loop correction is carried out in combination with a dew point margin. The case is favorable for improving air treatment stability and inhibiting abnormal rise of byproducts.

A food smoker system for indoor food smoking may include a food smoker unit having a smoker chamber. The smoker chamber may be in smoke transferable communication with a pellet ignition chamber. The pellet ignition chamber may be heated by one or more heater elements to generate smoke from pellets disposed therein. The system may include an air purification subsystem including some combination of an ionizers, electrostatic precipitators, and HEPA filters to eliminate smoke. The food smoker unit may have a convection oven or air fryer unit utilizing fans to distribute heat and smoke. A microprocessor may be coupled with various subsystems of the system, a control panel for inputting instructions, and a remote user interface. A method for indoor food smoking may include providing a food smoker system as well as a series of steps for smoking, cooking, and eliminating smoke produced during smoking.

The present invention provides a condensate capture device and an air purification device equipped with a condensate capture device. [Solution] The condensate capture device 110 comprises at least one movable condensing element 112 and at least one drive device 114 connected to the condensing element and driving the condensing element, wherein the condensing element is located within the condensate capture device and is located in and / or in sufficient contact with a flowing contaminated airflow, the condensing element is configured to at least condense contaminants contained in the airflow, and the condensing element is moved to allow at least partially to remove the contaminants condensed by the condensing element from the airflow.

This invention relates to the field of indoor air purification technology, specifically disclosing a high-efficiency carbon dioxide air capture system for indoor air purification. The system includes: predicting concentration trends based on historical CO2 concentration time-series data using an additive Holt-Winters exponential smoothing model; performing a two-dimensional interval verification combining the human comfort concentration range and the efficient adsorption range of LiOH to determine whether an adsorption command is triggered; calculating the theoretical adsorption capacity and instantaneous reaction rate using a thermodynamic-kinetic coupling model; determining the initial dosage based on the total CO2 release; correcting the initial dosage through historical data correlation analysis to avoid the risk of clumping; and finally, calling historical addition time data to calculate the effective duration and adsorption risk duration to determine the timing of LiOH addition. This achieves efficient CO2 capture and precise CO2 concentration control, improves the utilization rate of LiOH materials, and reduces the risk of application.

The invention relates to a compact air purification device based on ion thruster technology During operation, the ion thruster generates ozone (O₃) as a byproduct of oxygen ionization. This ozone is directed into a reaction chamber where it oxidizes volatile organic compounds (VOCs) and other airborne pollutants. The system eliminates the need for external fans or filters by using the natural airflow created by the thruster itself. Key components include an ionization chamber, a grounded copper ring, a high-voltage accelerator grid, and a downstream reaction zone. The device operates effectively in low-humidity environments, where ozone remains stable and highly reactive. This integration of aerospace propulsion and environmental chemistry offers a novel, energy-efficient solution for air treatment in enclosed or emergency settings. The invention is suitable for use in homes, laboratories, industrial spaces, and mobile purification units.

The application discloses a range hood purification control method and device and a range hood, and belongs to the technical field of kitchen appliances. The method comprises the following steps: acquiring the working state of the range hood; in the case that the working state is a start-up state, acquiring the air pollutant concentration at the current time and predicting the change trend of the air pollutant concentration at a future target time; and controlling the operation mode of the auxiliary air purification device according to the air pollutant concentration at the current time and the change trend. The application further acquires the air pollutant concentration at the current time and predicts the change trend of the pollutant concentration at the future target time in the start-up state, realizes dynamic perception and prediction of the kitchen air quality, makes the purification function no longer dependent on manual operation or fixed timing of the user, but matches the generation rule and diffusion trend of pollutants in the actual cooking process, thereby reducing the technical problem that the purification function is disconnected from the real demand, and improving the air purification effect of the kitchen environment.