778results about How to "Improve air purification effect" patented technology

The invention provides a nanofiber membrane. The nanofiber membrane is made of mixture by spinning. The mixture includes polymers and nanofiber materials in the mass ratio of 1:(0.01-0.2). The nanofiber materials are composed of photocatalyst and adsorbent. The adsorbent and the photocatalyst are used in the nanofiber membrane, the adsorbent can adsorb harmful gas in an adsorption chamber, the photocatalyst is capable of degrading and adsorbing harmful organics in holes of the adsorbent into carbon dioxide and water under the condition of indoor light rays and irradiation of a daylight lamp, and activates and regenerates the adsorbent in situ when decomposing the harmful organics on the adsorbent in the meantime, so that the adsorbent and the photocatalyst are reusable, and the nanofiber membrane has excellent air purification capacity. The invention further provides a preparation method of the nanofiber membrane and a nanofiber composite and a preparation method thereof.

The invention discloses a solid chlorine dioxide sustained-release material and a preparation method thereof, raw materials comprise sodium chlorite, a solid acid, a carrier material, a coating agentand auxiliary agents; the carrier material is silicon dioxide aerogel micro powder; and the auxiliary agents include an accelerator, a stabilizer, and a binder. The solid chlorine dioxide sustained-release material can realize a controllable release rate of chlorine dioxide by silicon dioxide aerogel micro powder loading, polymer coating and accelerator adjustment, and has more excellent air purification effect; the safety, long-term stability and stability of the chlorine dioxide released by the solid chlorine dioxide sustained-release material can be realized by controlling of the mass transfer of a chemical reaction process for producing the chlorine dioxide; the solid chlorine dioxide sustained-release material product prepared by the method is convenient to use, can effectively removeair pollutants (such as formaldehyde), deodorizes (H2S), and sterilizes, air is purified, and the solid chlorine dioxide sustained-release material product is safe and environmentally-friendly, is stable and reliable in production process, high in efficiency and low in cost, and has a good market prospect.

The invention relates to a high-efficiency labyrinth type air treatment device. The high-efficiency labyrinth type air treatment device is characterized in that a dust collecting unit is arranged in an air duct of a shell of the air treatment device and consists of at least more than one groups of dust collecting plates which are mutually and correspondingly intersected and arranged and charged positively (negatively); a labyrinth-shaped semienclosed air flow channel is formed in the dust collecting unit and is internally provided with a discharge transmitting end (wire) of an air ionization generator and a fan; and further the air is suctioned to be ionized close to the discharge transmitting end (wire) of the air ionization generator by means of the fan so as to enable the heterogeneous particles of the air to be charged positively (negatively), enable the heterogeneous particles charged positively (negatively) of the air to enter the labyrinth-shaped air flow channel in the dust collecting unit, enable the air to generate circuity in the labyrinth-shaped air flow channel in the dust collecting unit to collide with the dust collecting plate charged positively (negatively) and disturb the normal flowing state of the heterogeneous particles of the air, therefore, the purposes of changing the air flowing direction and improving the dust collecting effect of the dust collecting unit are achieved.

The invention discloses a functional nanofiber filtering material and a preparation method and application thereof, and belongs to the technical field of air purifying materials. The method comprises the following steps: adding C3N4 nanosheets into a solvent, dispersing evenly by ultrasonic vibration, adding polymer powder, dissolving evenly to obtain a polymer spinning solution containing the C3N4 nanosheets, and preparing the functional nanofiber filtering material by processing the polymer spinning solution on a substrate by the electrospinning technique; and the functional nanofiber filtering material can be well used in the filtration of organic pollutants, has high efficiency and low resistance when being used as an air filtration material, and can greatly improve the air quality.

This invention relates to a compressed gas cleaner utilizing a centrifugal impeller and spiral grooves by spinning a centrifugal impeller automatically with the dynamic power of compressed gas from a compressor, thus the separation of liquid, water, oil sludge and particular pollution dust can be completely cleaned with the spiral grooves instead of solid filters on the basis of specific difference, 1 to 1000, between gas and liquid. A compressed gas cleaner utilizing a centrifugal impeller and spiral grooves comprising: the spiral grooves for generating centrifugal gas stream without loss of pressure and the path of a liquid flow without sludge plugging on the basis of the labyrinth principle. Thus it is upgraded for a higher gas cleaning efficiency, 99.9% without any kind of solid filtering elements, drying chemicals and dehumidifying refrigerators on the basis of simple parts and structure for horizontal piping, low manufacturing fee, easy assembly and free maintenance for many years.

The invention provides a wind energy and solar energy-driven air purifier and an air purifying method thereof. The method comprises the following steps: firstly performing mechanical dedusting treatment on air; then further purifying the air subjected to mechanical dedusting by use of a multilayer purification filtering material; finally respectively injecting the purified air and a lot of anions into air. The wind energy and solar energy-driven air purifier has the advantages of high air purification capability, simple structure and low cost. In addition, according to the wind energy and solar energy-driven air purifier, a wind-driven power generation technology and a solar power generation technology are comprehensively adopted, so that the wind energy and solar energy-driven air purifier can operate continuously by use of electricity generated by wind energy and solar energy, and thus the energy consumption is saved. Therefore, the wind energy and solar energy-driven air purifier provided by the invention is special equipment for outdoor air purification, can meet the outdoor air purification demands and can be used for thoroughly improving the air pollution condition.

The invention relates to a novel photo-catalytic reactor, which can effectively carry out the photo-catalytic water purification and air purification under the assisting of solar energy. The purification mechanism comprises decomposing toxic organic compounds and destroying pathogenic micro-organism by hydroxyl radicals at the same time. The photo-catalytic reactor is provided with a pipe-shaped honeycomb structure consisting of a plurality of light penetration pipes. The photo-catalytic reaction can be triggered by solar radiation of a sunlight collection reflector. Meanwhile, the photo-catalytic air disinfection effect can be improved by leading static charges into the honeycomb light reactor, thus leading uncharged micro-organism transmitted by air to be attracted to a reactive photo-catalytic coating so as to carry out subsequent gradual damage.

The invention relates to an air cleaning agent and a preparation method thereof, and belongs to the technical field of environmental protection. The air cleaning agent comprises a globular carrier and a reactive metal or reactive metal oxide, wherein the globular carrier is a flower-ball-shaped rare-earth oxide, the globular carrier is composed of sheet petals by interweaving, and the reactive metal or reactive metal oxide is attached on the petal gaps of the globular carrier and the outer-layer petals. The air cleaning agent provided by the invention has the advantages that the air cleaning effect under the normal temperature is greatly improved, the air cleaning agent has the good catalytic activity, and the air cleaning speed is greatly improved; compared with the existing catalyst, the service life of the air cleaning agent is prolonged more than ten times, the air cleaning cost is reduced, and the air cleaning agent has the good antibacterial effect and has the good killing action on the common germs and viruses; the technology of the preparation method is mature, the technology and the operation are easy to control, the distribution of a microstructure of the cleaning agent is uniform, and the productive rate is more than 80%.

The invention discloses a combined air purifier. The combined air purifier comprises a host (1) and at least a sub-machine controlled by the host, wherein the host (1) is provided with an electric dust collector; the sub-machine is provided with an air purification device, a rolling wheel and a driving device used for driving the rolling wheel to roll; the host (1) can detect the air quality of each region in a room through a flow sensor of a controller; the host (1) also can detect a room layout through an infrared sensor; and the host (1) can send a signal to control movement, start and stop of the sub-machine. The combined air purifier has relatively good air purification effects for regions relatively far away from the air purifier, and particularly for the corners of the room.

The invention relates to an anion colored veneer exterior thermal insulation material in the field of novel building materials. The material comprises the following components in parts by weight: 10-15 parts of anion raw material, 25-30 parts of inorganic gelation raw material, 5-10 parts of inorganic pigment, 65-70 parts of aggregate, 3-5 parts of organic gelation raw material, 0.1-0.3 part of hydroxypropyl methyl cellulose ether, 0.1-0.2 part of polycarboxylic acid water reducing agent and 0.1-0.2 percent part of organosilicon water repellent, wherein the anion raw material is tourmaline class tourmaline powder; the inorganic gelation raw material is PO42.5 composite high-alumina cement; the inorganic pigment is iron oxide inorganic pigment; the aggregate is refined quartz sand; the organic gelation raw material is a solid acrylic acid glue material; and the hydroxypropyl methyl cellulose ether, the polycarboxylic acid water reducing agent and the organosilicon water repellent are used as additives. The material maintains the advantages of the traditional colored veneer mortar and also additionally achieves the effects of purifying air and improving the corrosion resistance of buildings.

The invention relates to an air purification method which purifies air by using a two-stage or multi-stage chemical agent solution absorption method. The two-stage or multi-stage chemical agent solution absorption method comprises: firstly absorbing vitiated air entering indoors to a first-stage absorption chamber; absorbing organic matter harmful gas by an acidic potassium permanganate solution and filtering the harmful gas; then introducing the gas to a second-stage absorption chamber by a fan; absorbing harmful gas with weak acidity output from the first-stage absorption chamber by using alkaline liquor, and filtering the harmful gas; and blowing the harmful gas indoors, wherein the acidic potassium permanganate solution in the first-stage absorption chamber is a mixed aqueous solution of potassium permanganate and diluted acid, and in the mixed aqueous solution, the potassium permanganate accounts for 0.5-3% by weight and the diluted acid accounts for 3-5% by weight; the alkaline liquor in the second-stage absorption chamber is an aqueous solution of sodium hydroxide or calcium hydroxide with the content of alkaline liquor being 2-5%.

The invention relates to a method for preparing a molecular self-assembly porous vermiculite air purifying material. The method comprises that: (1) vermiculite is subjected to acid cleaning, alkali cleaning and alcohol cleaning sequentially; and finally, the vermiculite is washed by deionized water and dried; (2) the vermiculite is soaked in a 0.01 to 0.1mol/l surfactant solution; after the surface of the vermiculite is assembled with a layer of organic unimolecule film, the vermiculite is taken out; a surface physical adsorption composition is washed out; and the vermiculite is dried in vacuum; (3) the vermiculite is soaked in 0.15 to 0.35 mol/L sol; an SnCl2 solution is taken out and injected to the sol; PdCl2 is taken out and dripped to the sol; the mixture is kept stand, stirred and separated; a loose layer is washed out; and the mixture is dried; and (4) the step (2) and the step (3) are repeated for three to four times; and the mixture is calcined to obtain the molecular self-assembly porous vermiculite air purifying material. The preparation method is simple, easy to operate and suitable for industrial scale production; and the prepared air purifying material has good air purifying effect.

The invention discloses a ventilation and purification device which adopts a positive displacement blower, has a powerful air purification function, comprises an automatic cleaner for a filter, and is suitable for the ventilation and air purification of various buildings. The device comprises an air inlet, the blower, a filtering device, an air outlet, a controller, etc. The ventilation and purification device adopts the positive displacement blower to provide motive power for air flow, and has a steady air flow rate; a main filtering device adopts a ring-shaped band filter; one part of the band filter operates in an air filter state, and retention dirt in the other part is cleaned by a blowing device; and through the drive of an electric directive wheel, dynamic automatic cleaning of the filter is achieved.

The invention discloses an air purification device and method capable of continuously degrading indoor VOCs. The air purification device comprises a dehumidification unit, an inlet air inducing unit, a first purification and degradation chamber, a second purification and degradation chamber, an outlet VOCs monitor and control unit and an exhaust unit. According to the air purification device capable of continuously degrading the indoor VOCs, VOCs gas adsorption degradation and activated carbon desorption regeneration are integrated, and integrated shell mounting is easy; the air purification device has the beneficial effect of being convenient to move, an adsorbing material does not need to be replaced frequently, the consumption cost of an activated carbon adsorbing material is greatly reduced, and the service life of the activated carbon adsorbing material is prolonged; and a dehumidification pretreatment method is adopted, the efficiency that activated carbon purifies and adsorbs the VOCs later is greatly improved, the air purification effect is greatly improved, and the good market potential is achieved.

The embodiment of the invention discloses a filter screen lifetime determination method, an air purifier and a computer storage medium. The method includes: detecting the pollutant concentration of the environment every preset time period, acquiring the air speed in the air purifier, and acquiring the filter screen filtration efficiency of the air purifier; determining the dust holding capacity based on the pollutant concentration, the air speed and the filter screen filtration efficiency acquired at the preset time periods; subjecting the dust holding capacity obtained at all the preset timeperiods to addition so as to obtain cumulative dust holding capacity; and determining the residual life the filter screen in the air purifier based on the cumulative dust holding capacity.

The present invention relates to an air purification system with plasma driven catalyst technology. The system comprises a plurality of plasma driven catalyst reactors in a parallel setup. Zigzag electrodes comprising zigzag structures are used to facilitate plasma generation. The system of the present invention provides the advantages with ease of fabrication and scaling-up, and improvement of air purification performance.

The invention discloses an indoor air purifier which comprises an air filter, an exhaust pipe, an air pump, a connecting pipe, a first air inlet pipe, a second air inlet pipe, a reversing valve and the like. According to the indoor air purifier disclosed in the invention, a filter screen is arranged in a container with water and submerged under the water surface, the indoor air is circulated by an air pump and enters water under the filter screen through a pipeline to form bubbles, the bubbles are refined into tiny bubbles when passing through the filter screen and sufficiently contact with water in the container, and the water in the container can maximally adsorb the tiny dust particles in air, thereby enhancing the air purification property. The indoor air purifier has the function of supplementing air from outside to inside. The indoor air purifier disclosed by the invention has the advantage of favorable air purification effect, is simple to operate and convenient for maintenance, can be widely used in schools, hospitals, offices, air purification rooms and other locations, and has favorable application prospects.