814 results about "Air filtration" patented technology

Mobile or stationary air filter (L) or room fan (RL) according to Figure 1, comprising an outer wall (5), a (2) for generating an airflow (3) which is guided through an air filter material (1.1), an air inlet (2.1) and an air outlet (2.2), wherein the air filter material (1.1) contains poly(styrenesulfonic acid) (sulfonic acid biocide) (1.3) cross-linked with divinylbenzene and / or an acidic salt (1.3.1) (sulfonic acid biocide salt) of the sulfonic acid biocide (1.3) with biocidal cations, wherein the sulfonic acid biocide (1.3) and / or sulfonic acid biocide salt (1.3.1)(i) are positively and / or materially bonded to and / or in inert carriers and, in the fixed state, are in direct contact with carrier materials (1.1.7) on and / or in which biocidal Metal microparticles of a mean particle size d50 of 0.1 µm to <1,000 µm are fixed, and / or (ii) with carrier materials (1.1.7) on and / or in which biocidal metal microparticles of a mean particle size d50 of 0.1 µm to <1.000 µm are fixed, are mixed; its use and methods for the production and environmentally friendly disposal of air filter materials (1.1).

The invention relates to the technical field of air conditioning equipment, and particularly discloses an energy-saving air conditioning system fan coil unit which mainly comprises a machine shell, a surface air cooler, a centrifugal fan and a driving motor. A filter cartridge is assembled at an air inlet of the volute, one end of the filter cartridge is connected with the periphery of the air inlet, the other end of the filter cartridge extends into the centrifugal impeller, and a filter area is arranged at the side part; a rotary arm is connected to an output shaft of the driving motor, a one-way transmission mechanism is arranged between the rotary arm and the driving motor, and a spiral scraper attached to the inner wall of the filter drum is fixedly arranged on the rotary arm. When the unit is in normal air supply operation, air is filtered through the filter cartridge, air streaming is avoided, a good filtering effect is achieved, dust accumulation of core components is reduced, the heat exchange and air supply efficiency of the unit is guaranteed, and energy conservation and noise reduction are achieved. And when the driving motor reversely runs, the spiral scraping blade scrapes off foreign matters adhered to the inner wall of the filter cartridge and drives the foreign matters to be discharged, so that the filter cartridge is automatically cleaned, the high efficiency of air filtration is guaranteed, and the operation and maintenance cost is greatly reduced.

The utility model belongs to the technical field of bird breeding, and relates to a multi-sensor controlled intelligent parrot brooding box which comprises a cuboid box body, a sensor box arranged on the inner side wall of the box body and opposite to a box door, a control display box arranged above the box door, and an air inlet fan arranged above the outer side wall of the box body. The switching power supply box is fixed on the inner side wall of the box body and is communicated with the air inlet fan; the ultrasonic humidifier is arranged on the side wall of the box body; wherein two ends of the sensor box are respectively provided with a sensor box air inlet hole and a sensor box air outlet hole, the built-in air filtering sponge covers the sensor box air inlet hole, and the sensor box air inlet fan is fixedly arranged at one end where the sensor box air inlet hole is located and is adjacent to the air filtering sponge; the temperature and humidity sensor and the carbon dioxide sensor are arranged on the inner wall of the sensor box; a single-chip microcomputer is arranged in the control display box, and a liquid crystal screen is arranged outside the control display box. The environment in the brooding box is intelligently controlled through the single chip microcomputer, and the growth and development and breeding production efficiency of nestlings is improved.

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 present invention provides a nanofiber membrane having dual scale porosity, which is manufactured by a phase separation electrospinning method. The nanofiber membrane is composed of interfibrous pores and surface pores which are interconnected, thereby enhancing air permeability, diffusion rate and filtration performance. The methods employ solvents having different evaporation rates to induce phase separation during electrospinning, resulting in high porosity structures. The nanofiber membranes are suitable for use in air filtration, medical dressings, drug delivery systems, and diagnostic test paper, thereby improving performance characteristics, such as reducing pressure drop, enhancing diffusion, and increasing diagnostic sensitivity. The method enables cost-effective and scalable production while ensuring consistency of fiber morphology.

The utility model relates to the technical field of new energy automobiles, and discloses a heat dissipation mechanism for new energy automobile battery management, which comprises a new energy automobile battery body, one side of the new energy automobile battery body is provided with a heat dissipation assembly, the heat dissipation assembly comprises a cooling box, the cooling box is fixedly connected with the new energy automobile battery body, and the cooling box is connected with the new energy automobile battery body. And a fan is fixedly installed at the top of the cooling box, the output end of the fan communicates with a first air guide pipe, and one end of the first air guide pipe communicates with an air blowing plate. By arranging the heat conduction rod, heat of the new energy automobile battery body can be guided, the heat exchange area is enlarged, by arranging the heat dissipation assembly, the semiconductor refrigerator can refrigerate cooling liquid by turning on the draught fan and the semiconductor refrigerator, the draught fan can blow cold air to the top of the new energy automobile battery body and the heat conduction rod, and the heat dissipation effect is improved. Therefore, the heat exchange efficiency is improved, the heat dissipation effect is good, the filter screen head (209) can filter air, and dust is prevented from entering.

The invention discloses a multi-stage filtering structure of an ionic wind air purifier, and relates to the technical field of air filtering equipment. The air purifier comprises a purifier body, a supporting frame is arranged in the purifier body, and an ionic wind dust collection polar plate is installed in the supporting frame; a plurality of layers of filtering assemblies are arranged in the supporting frame. By adopting a multi-layer composite structure composed of the primary filter layer, the high-pressure ionization area, the ozone catalytic layer and the dust collection area, efficient cooperative treatment of different pollutants in air is achieved, air flow firstly passes through the primary filter layer to intercept large-particle dust, then fine particles are electrified and partially sterilized in the high-pressure ionization area, and therefore the air purification effect is achieved. Generated ozone by-products can continue to be deeply sterilized and disinfected, electrified airflow immediately passes through a special ozone catalytic layer subsequently, ozone can be efficiently decomposed into harmless oxygen, and the technical problem that ozone exceeds the standard in a traditional electrostatic dust collection technology is solved.

The application discloses a preparation method of superfine nanofiber antibacterial and mosquito-repellent high-efficiency low-resistance air filtration membrane, which comprises the following steps: dissolving cellulose acetate, cinnamyl aldehyde and polyhexamethylene biguanide hydrochloride in a solvent, fully stirring to form a spinning solution, wherein the solvent is a mixed solution of acetone, N, N-dimethylacetamide and water; and performing electrostatic spinning on the spinning solution to obtain the superfine nanofiber antibacterial and mosquito-repellent high-efficiency low-resistance air filtration membrane. The manufacturing steps of the application are simple and not complicated; cellulose acetate has excellent mechanical properties, hydrophobicity and thermal stability, and is an ideal material for air filtration membrane; the liquid property of cinnamyl aldehyde can effectively dilute cellulose acetate, so that the overall binding energy of the mixed solution system is reduced, the diameter of the prepared fiber is reduced, and meanwhile, the mild binding force of cinnamyl aldehyde minimally affects the interaction between cellulose acetate molecules.

In order to obtain an electret melt blown nonwoven fabric having flexibility and high tensile elongation without performing a special post-processing treatment or using a special additive, the electret melt blown nonwoven fabric comprising polyolefin-based resin fibers is provided, the electret melt blown nonwoven fabric having a crystallization temperature of 80° C. or higher and 130° C. or lower and a heat quantity ΔHm of 3.0 J / g or higher and 20.0 J / g or lower at the time of the first temperature rise in the cycle of DSC.

The utility model relates to the technical field of air filter paper processing, in particular to a winding device for air filter paper processing, which comprises an equipment main body and an adjusting component and is provided with an adjusting frame, a mounting plate, a bearing seat, a limiting disc and a winding core. According to the device, the bearing seat and the limiting discs can be driven to move left and right through the adjusting frame and the mounting plate which can move left and right, a winding roller is supported through the limiting disc located on the left side, meanwhile, the limiting disc located on the right side can be separated from the winding roller, and therefore rapid mounting of a winding core is achieved; according to the air filter paper winding device, the height-adjustable bearing seat is used for bearing wound air filter paper, the limiting disc is used for pushing the wound air filter paper and the winding core, so that the air filter paper is stably and quickly separated from the winding roller, the device can adapt to air filter paper of different models, the wound air filter paper is automatically discharged, and the production efficiency is improved. And moreover, the air filter paper blanking device is simple to operate, time-saving and labor-saving.

An electrostatic air filter device (1) and a method for operating the electrostatic air filter device (1) are proposed. The electrostatic air filter device (1) is designed to filter air flowing through it and comprises an ionizer (2) for ionizing air particles (3) in an electrostatic field generated by applying an electrical voltage supplied by a controllable electrical power source (21) to the ionizer (2). The electrostatic air filter device (1) further comprises an electrical control circuit (20) for controlling the controllable electrical power source (21). The electrical control circuit is configured to detect at least one current power parameter of the ionizer (2) to determine its current state and to adjust the electrical power source at least partially based on the detected power parameter.

The present invention relates to a vacuum cleaner comprising: a body; a dust barrel movably coupled to the body and storing dust; a suction unit for guiding air into the dust tub; a first filter for filtering dust from air flowing in through the suction part; a second filter that filters dust from the air that has passed through the first filter; an operation part which is arranged on the outer side of the dust bucket and moves together with the dust bucket; a first cleaning member disposed on the inner side of the dust tub and cleaning the first filter when the operation unit is moved; and a second cleaning member connected to the dust tub and cleaning the second filter when the operation part moves.

The application provides a metal mesh reinforced primary efficiency filter device, and relates to the technical field of air filtration.The metal mesh reinforced primary efficiency filter device comprises a filter square tube, an air inlet square tube and a self-cleaning square tube, the filter square tube is connected with the air inlet square tube, the self-cleaning square tube is fixedly provided with a connecting square tube and a first air outlet square tube on both sides, and the connecting square tube is connected with the filter square tube;an airflow uniformizing plate is fixedly arranged in the air inlet square tube, a plurality of flow guide holes are formed in the airflow uniformizing plate, the diameters of the flow guide holes gradually decrease from the air inlet side to the air outlet side, the axes of the flow guide holes and the plate surface of the airflow uniformizing plate form an included angle of 15-25 DEG, three filter frames are arranged in the filter square tube, and the top of each filter frame extends to the upper side of the filter square tube.The application has the advantages of high filtration efficiency, long service life, reduced frequency of manual maintenance and self-cleaning function.

The utility model discloses an air filter applied to a dust-free laboratory, relates to the technical field of air filtration of the dust-free laboratory, and aims to solve the problems that the conventional air filter has defects in dual gas filtration and purification and the overall filtration effect needs to be improved. A filter element is installed in the middle of the interior of the filter box, an adsorption box is fixedly connected to the side surface of the filter box, an exhaust pipe is fixedly connected to the side surface of the filter box, the air outlet end of the exhaust pipe communicates with the space of one end of the interior of the adsorption box, and a ceramic base is fixedly installed on the inner wall of the adsorption box; a discharge electrode and a dust collection electrode are fixedly installed on the symmetrical inner walls of the ceramic base correspondingly, and a plurality of through grooves corresponding in position are formed in the lower surface of the ceramic base and the lower surface of the adsorption box. The effects of double filtering operation and strong filtering effect are achieved.

The invention relates to the technical field of air filtration, in particular to a detachable air filter, an assembly method and a filter element replacement method, the air filter comprises a bottom frame, a plurality of groups of filter elements, a side mounting body and a plurality of top covers; the bottom frame is provided with a plurality of air inlets and supporting bodies on the two sides. Each group of filter elements corresponds to one air inlet and encloses a filter channel communicated with the air inlet; the side mounting bodies are fixed with the bottom frame, mounting grooves corresponding to each group of filter elements are formed in the side mounting bodies, and notches are positioned at the top; the top covers are detachably connected to the tops of the side mounting bodies; after the side part of the filter element is inserted into the mounting groove through the notch, the bottom is propped against the support body, and the top is pressed on the top cover to realize three-point mechanical fixation. According to the scheme, an adhesive is abandoned through a modular mechanical structure, the structural strength and the sealing performance are ensured, meanwhile, the filter element is independently and rapidly replaced, the pollution risk of volatile organic compounds is eliminated, the long-term use cost and the environmental load are reduced, and the maintenance convenience is remarkably improved.

The invention discloses a preparation method and application of a hydrophobic air filtering material based on lignin modification, and belongs to the technical field of personal protective articles. According to the method, environment-friendly lignin and a silane coupling agent are subjected to a pre-grafting reaction to prepare a functionalized impregnation liquid, a mask melt-blown cloth filter material is modified, and the modified mask melt-blown cloth filter material serves as a long-acting hydrophobic mask filter material to prepare a mask. According to the invention, a firm hydrophobic network is constructed on the surface of the fiber by utilizing the'molecular bridge 'effect of silane. The modified filter material prevents the filter efficiency from being reduced due to moisture, and meanwhile, the coating is resistant to airflow scouring through chemical bonding, so that the protective life of the mask is prolonged. Compared with a reported modification method, the preparation method disclosed by the invention has the comprehensive advantages of environmental friendliness, low cost and lasting performance.

This invention relates to the field of respiratory equipment, specifically to a dust and toxic substance safety early warning respiratory assistance system, comprising a mask module, a purification module, and a monitoring module. The mask module includes a mask body with a first inlet and a first outlet. The purification module includes a first filter module and / or a second filter module. The first filter module is filled with a first filter material, and the second filter module is filled with a second filter material. The first and second filter modules are each detachable. The monitoring module is detachably connected to either the first or second filter module and contains sensors for monitoring the operating status of the first and second filter modules. Air passes through the purification module and the monitoring module sequentially before entering the mask body. This invention discloses a dust and toxic substance safety early warning respiratory assistance system that can intelligently monitor in real time, proactively issue an early warning in case of filtration failure, and optimize the air filtration path to maximize the utilization rate of the filter material and the purification effect.

The application discloses a kind of MXene modified polyimide nanofiber composite membranes and its preparation method and application, the method is prepared by acid etching method MXene nanosheet and polyamide acid molecular chain form strong hydrogen bond and coordination effect, significantly enhance interface binding force.MXene effectively transmits load, inhibits crack propagation, substantially improves the tensile strength and toughness of composite membrane, while extending the diffusion path of particulate matter, combined with the electrostatic adsorption effect produced by MXene itself conductivity, significantly improve the interception efficiency of PM0.3~PM2.5 fine particulate matter.The thermal imidization process ensures that PI matrix is completely converted into high-temperature-resistant structure, giving the material the ability to operate stably at high temperature for a long time.The composite membrane realizes four breakthroughs of high strength, high efficiency, low resistance and high dust capacity, providing a new solution for high-performance air filtration under harsh working conditions.

The utility model discloses an adjustable ventilating duct of a biological fertilizer fermentation tank, which belongs to the field of ventilating ducts and comprises a ventilating duct body connected with the biological fertilizer fermentation tank, an electric air valve and a fan are fixedly connected between the ventilating duct body, and the air inlet end of the ventilating duct body is fixedly connected with an air filter screen through a mounting mechanism. By means of the arranged installation mechanism, the purpose of conveniently disassembling and assembling the air filter screen on the ventilation pipeline body can be achieved, compared with a traditional installation mode, the installation mode is easy to operate, the time and labor for installation and disassembly are greatly saved, and the working efficiency is improved; the damage to threads at the air inlet end of the ventilation pipeline body caused by frequent disassembly of bolts and nuts is avoided, the problem that the installation stability and the sealing performance of the ventilation pipeline body are reduced due to thread damage is solved, the service life of the ventilation pipeline body is prolonged, and normal operation of the ventilation pipeline body is guaranteed; therefore, the normal work of the biological fertilizer fermentation tank is ensured.

The utility model relates to the technical field of air filtration, and discloses a filter screen with a thermoplastic elastomer rubber coating structure, which comprises a filter screen shell body, a first rubber coating piece and a second rubber coating piece, and the first rubber coating piece and the second rubber coating piece are made of thermoplastic elastomer materials. The first rubber coating part and the second rubber coating part are integrally formed with the filter screen shell body through an injection molding process, the first rubber coating part and the second rubber coating part respectively coat the outer surfaces of the two opposite sides of the filter screen shell body, and the rubber coating part on at least one side extends to an assembly contact area on the outer side of the filter screen shell body; a groove is formed in the surface of the outer side of the filter screen shell body, and the first rubber coating piece is filled in the groove and extends to the outer side of the groove. The filter screen with the thermoplastic elastomer rubber coating structure has the advantages that sealing is achieved through thermoplastic elastomer rubber coating, the rubber coating is installed on the surface of a plastic part in a thermoplastic forming mode, and the situation that the overall using effect of a device is reduced due to secondary pasting is avoided.

The invention discloses a residence top crack pouring and repairing device which comprises a bottom plate, a discharging head is fixedly connected to the bottom of the bottom plate, a second camera is fixedly connected to the left end of the bottom of the bottom plate through a support, a box is fixedly connected to the top of the bottom plate, and a solvent-free epoxy resin grouting material storage groove is formed in an inner cavity of the box. And the right side of the box body is fixedly connected with a pump machine. The fan at the top of the fixing frame extracts air from the bottom of the filter box through a pipeline, after air sucked by the air inlet in the left side of the filter box is filtered by the inner cavity filter screen, impurities are intercepted, the cleaned air is sprayed out from the air outlet nozzle at the bottom of the fixing frame, and dust and chippings in cracks can be blown away before filling; impurities are prevented from affecting the bonding force of the grouting material and concrete, it is ensured that the repaired crack is not prone to cracking again, and a first camera can make a worker clearly see whether dust and chippings in the crack are blown away by an air outlet spray head or not.

The utility model relates to the technical field of fire protection and smoke exhaust, in particular to a fire protection and smoke exhaust ventilator with an air filtering function, which comprises a smoke exhaust ventilation pipe, the lower end of the smoke exhaust ventilation pipe is fixedly connected with a smoke inlet cover, and the middle of the outer surface of the smoke exhaust ventilation pipe is fixedly connected with three fixing blocks. The upper ends of the three fixing blocks are all provided with vertically-through fixing holes, the upper portion of the inner wall face of the smoke exhaust ventilation pipe is fixedly provided with an air exhaust assembly, the lower portion of the outer surface of the smoke exhaust ventilation pipe is provided with an internally-externally-through mounting clamping groove, and the lower portion of the inner wall face of the smoke exhaust ventilation pipe is provided with a connecting sleeve groove. And a filtering assembly is movably clamped in the mounting clamping groove, and a smoke discharging assembly is fixedly connected to the upper end of the smoke discharging ventilation pipe in a penetrating and inserting mode. According to the fire-fighting smoke exhaust ventilator with the air filtering function, a two-stage filtering structure is adopted, the air filtering efficiency and quality are greatly improved, the content of pollutants in exhausted smoke is effectively reduced, and the external environment is protected.

The utility model discloses an air inlet filter for an air compressor, which relates to the technical field of filters, and comprises an air filtering piece for filtering air, and the air filtering piece is arranged at the air inlet end of a top cover; the top cover is mounted in the tank body filled with lubricating oil in a matched manner; an air inlet channel is formed in the top cover, and an air pipe is fixed below the air inlet channel; the lower end of the air pipe is immersed in the lubricating oil; according to the utility model, under the extraction of the reciprocating compressor or the screw compressor, external air enters the outer shell through the top cover, passes through the filter and the filter element and then enters the air inlet pipe; the air enters the air inlet channel in the top cover, then the air is conveyed into the lubricating oil through the air pipe, when the air is pumped away again, the air carries part of the lubricating oil component, and therefore an air path of the compressor can be conveniently lubricated. Due to the arrangement of the filter and the filter element, dust carried in the air is reduced, and the cleanliness of the air entering the air compressor is guaranteed.

The application provides a kind of air supply device and control method for biological protection equipment, it is related to biological protection equipment technical field, air supply device includes filter module, refrigeration module, power module, shell module, air supply and connection module, back module and control module, filter module is set at the bottom end of shell module, refrigeration module is divided into first-stage refrigeration and second-stage refrigeration, and is respectively set at the end face of shell module and filter module, most parts of power module and air supply and connection module are set in shell module, back module is set at the back of shell module, control module further includes controller, control panel and sensor, and controller is set at one end of back module.The application realizes air supply dehumidification, air filtration and temperature reduction and pressure stabilization in biological protection equipment through air supply device, and further improves comfort under the premise of ensuring the safety of wearer.

The utility model provides a lampblack purifying and filtering unit, and belongs to the technical field of lampblack filtering. The lampblack purification filter unit comprises a filter unit body, and the filter unit body comprises a smoke outlet, supporting legs, a cabinet door, a volute-free fan, an activated carbon filter plate, a medium efficiency filter, an electrostatic filter and a primary efficiency filter. According to the filtering method, the physical filtering primary filter, the medium efficiency filter, the electrostatic filter, the UV photolysis filter, the activated carbon filtering plate and other functional sections are integrated, the comprehensiveness of kitchen oil fume air filtering and discharging is greatly met, meanwhile, suction and discharging of the volute-free draught fan are adopted, and the air filtering and discharging efficiency is greatly improved. The filtering efficiency is ensured, and meanwhile, the air volume and pressure adjustment of the whole ventilation system can be met.

This invention relates to a ventilation structure for a prefabricated substation and the prefabricated substation itself. The substation includes a housing with mounting slots on both sides. An air filter plate is installed within each mounting slot, and a cable guide is mounted on the air filter plate. Multiple communication channels are provided on the cable guide. Rainproof design: The top ventilation structure employs a "height difference between the drain cover and the ventilation platform" design, allowing rainwater to slide off along the outer periphery of the drain cover, preventing direct seepage. The air intake path at the bottom of the suction chamber is extended, reducing the risk of water backflow.

The utility model discloses an edible mushroom planting sealing cover with an inoculation function, and relates to the technical field of edible mushroom planting equipment and equipment. Comprising a sealing cover, the sealing cover is detachably connected to a top opening of a strain planting box, the sealing cover comprises a strain placement area and a ventilation area located above the strain placement area, and a vertical through channel which is communicated with the strain placement area and is vertically through is formed in the ventilation area; the vertical through channel is provided with a rotary opening and closing cylinder playing an opening and closing role, and an air filtering piece is arranged in the rotary opening and closing cylinder. Flexible and convenient control of air on-off in the edible mushroom planting box is realized.

The goal of the present invention is to provide a double-wool biocomposite air filter material and production method thereof, which is fully biodegradable and can be processed and enriched from animal wool. The double wool biocomposite air filter material is composed of (a) a Micro-cotton blend layer of PPK microfibers produced by processing biocomposite pellets from washed and combed coarse wool, a diameter of up to 22±10 micrometers and spunbonded with washed and combed wool, and (b) a layer of PPK nanofibers with a diameter of 0.2-1 micrometers, produced by processing biocomposite pellets from washed and combed coarse wool.

This invention provides an air conditioner and a control method for the air conditioner. The air conditioner includes a housing and a filter assembly. The housing has a ventilation duct, a first air outlet, and a second air outlet. The filter assembly has an arc-shaped filter screen structure, which is rotatably arranged along a preset arc-shaped track to allow the filter screen structure to switch positions at the first and second air outlets. The air conditioner has two operating modes: a cooling mode and a heating mode. In cooling mode, the second air outlet serves as the air inlet, the first air outlet as the air outlet, and the filter screen structure rotates along the preset arc-shaped track to the second air outlet. In heating mode, the first air outlet serves as the air inlet, the second air outlet as the air outlet, and the filter screen structure rotates along the preset arc-shaped track to the first air outlet. This invention solves the problem in existing air conditioners where the air filter cannot automatically adjust its position according to the air conditioner's operating mode to optimize airflow.