1826 results about "Air filtration" patented technology

The embodiments provide a system and method for filtering out smoke and / or toxic gases / fumes from air in a building. The system integrates various smart devices with an HVAC system along with a controlling software application that can change the state of the smart devices, thereby controlling the types and quantities of air moving through the HVAC system at any time. In particular, the system can adjust the openings of one or more smart registers to control how much air passes in and out of the HVAC system over a given period of time. The system can also adjust the opening of a smart intake vent to control how much fresh (outside) air passes into the system over a given period of time. The system can also adjust the opening of a smart furnace valve that is disposed within the furnace.

The invention discloses a pseudo-ginseng seed storage method, relates to the technical field of seed treatment, and aims to solve the problems that pseudo-ginseng seeds are difficult to store, easy to lose vigor and severely mildew.The pseudo-ginseng seed storage method adopts a specially-made bionic microenvironment packaging unit to wrap the seeds, the inner layer of the specially-made bionic microenvironment packaging unit contains a moisture slow-release agent, and a bacteriostatic agent and active substances needed by germination can be intelligently released in a staged mode; the outer layer of the seed packaging box is a selective breathable film which integrates humidity and microbial contamination state indication functions and stress buffer characteristics, then the packaged seed is placed in an intelligent regulation and control storage cabin, and the temperature and humidity are accurately regulated and controlled by the storage cabin; gas components (such as low oxygen, high carbon dioxide or ozone) regulation and control, efficient air filtration and an intelligent monitoring and remote management system can be selected, the service life of the seeds can be remarkably prolonged, high germination rate and activity are kept, mildew is effectively inhibited, physiological after-ripening and germination are optimized, and intelligentization, standardization and refinement of seed storage management are achieved.

The invention relates to the technical field of air conditioning, and discloses a control method of air treatment equipment. The filter screen device of the air treatment equipment comprises a filter screen body used for filtering air; the ultrasonic generator is connected with the filter screen body in a contactable manner so as to transmit vibration energy of the ultrasonic generator to the filter screen body. According to the self-cleaning filter screen device, high-frequency vibration of the ultrasonic generator is used for conducting vibration cleaning on dust attached to the filter screen body, almost no dust remains on the filter screen body, cleaning is thorough, the cleaning efficiency is high, noise is low when the ultrasonic generator works, energy consumption is low, and the use experience of a user can be effectively improved through the self-cleaning filter screen device. The vibration intensity and the vibration frequency of the ultrasonic generator are controlled according to the environment temperature and / or humidity, and the cleaning effect is ensured.

The invention belongs to the technical field of environmental protection equipment, and particularly relates to a textile workshop automatic dust filtering device which comprises an outer cylinder, a filtering mechanism used for filtering fiber dust in a textile workshop is arranged in the outer cylinder, and the filtering mechanism comprises a rotatable lower flow guide blade and a rotatable upper flow guide blade. The size of the lower flow guide blade is larger than that of the upper flow guide blade, a rotatable filter cartridge is arranged on the outer side of the lower flow guide blade, a plurality of connecting frames are arranged above the upper flow guide blade, and the connecting frames are arranged in an inclined mode. The friction balls on the surfaces of the matching rods adsorb and roll impurities filtered by the filter cartridge, the filter cartridge is self-cleaned, the situation that fiber chippings adhere to the filter cartridge to affect the air filtering effect of the filter cartridge is avoided, the filtering effect of the filter cartridge can be effectively improved, and the dust filtering efficiency of the dust filtering equipment on a textile workshop can be improved.

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 discloses a fused electrostatic spinning polymer / molecular sieve blended composite fiber as well as a preparation method and application thereof. The melt electrostatic spinning polymer / molecular sieve blended composite fiber is prepared from the following raw materials in parts by weight: 25-90 parts of a thermoplastic polymer matrix, 5-75 parts of a molecular sieve, 1-10 parts of a compatibilizer and 0-5 parts of a conductive additive. According to the polymer / molecular sieve blended composite fiber material and the preparation technology, no solvent participates in the whole process, and the green manufacturing requirement is met. Moreover, in the fiber material, the molecular sieves can be uniformly distributed on the superfine polymer fibers, scanning electron microscope pictures show that the molecular sieves are uniformly embedded into the material, no aggregate larger than 10 microns exists, and the fiber material has a hierarchical pore structure, a high specific surface area and excellent mechanical properties. Therefore, the fiber material can be applied to the fields of air filtration, catalytic reaction, drying purification, adsorption separation and the like.

The present invention discloses an air filtration membrane based on nanohybrid-modified polylactic acid fiber and a preparation method thereof. The present invention adopts a microwave-assisted in-situ synthesis method to directly induce the in-situ growth of ZIF-8 nanocrystals on the surface of CNTs to obtain CNT@ZIF-8 nanohybrids. Through coaxial electrospinning technology, an air filtration membrane with CNT@ZIF-8 uniformly embedded in polylactic acid fibers is obtained. The preparation method of the present invention is simple and the conditions are controllable. The prepared air filtration fiber membrane has the advantages of high surface potential, large specific surface area, good air permeability, long-term filtration, etc., and is an air filtration material with broad application prospects.

The invention belongs to the technical field of lung function nursing, and discloses a nursing device for improving lung function after thoracic surgery, comprising: a back plate, two sides of the lower end of the back plate are respectively provided with an air filter box and a waste liquid inbox; an outlet of the air filter box is connected with a breathing mask through a hose; a mouthpiece is fixedly arranged on the breathing mask; a suction pump is arranged on the waste liquid inbox, the input end of the suction pump is communicated with a sputum suction pipe, and the sputum suction pipe is in sliding connection with the breathing mask; elastic ropes are fixedly arranged on the two sides of the lower end of the back plate, handles are fixedly arranged at the outer ends of the elastic ropes, and a monitoring mechanism is fixedly arranged on the back plate. The device can be conveniently used when a patient lies in bed, the device can be fixed to the back through the shoulder buckle belt and the waist buckle belt, the patient can hold the handles with two hands to stretch the elastic rope to conduct chest expanding training, the comprehensive evaluation module comprehensively evaluates the physical condition and the lung function condition of the patient, the drainage monitoring module monitors the drainage condition, and the risk prediction module conducts risk prediction.

The invention provides a clean air main machine with a dispensing device storage bin and a pneumatic dispensing system.The clean air main machine comprises a machine shell, an air source device and an air filtering device are installed in the machine shell, an air outlet port is formed in the machine shell, and the air source device is connected with the air outlet port through the air filtering device; the air outlet end opening is connected with the air inlet end of the medicine dispensing device, a containing bin used for containing the medicine dispensing device is formed in the machine shell, and sterilization equipment is arranged in the containing bin. Before the dispensing device is used, the dispensing device can be placed in the storage bin of the clean air main machine, the sterilizing device in the storage bin is used for sterilizing the dispensing device, the sterilized dispensing device is stored in the storage bin, and bacteria in air are prevented from entering and adhering to the dispensing device to cause pollution.

The invention discloses an air compressor filter device for hydroxypropyl methyl cellulose production, and belongs to the technical field of compressed air filtration, the air compressor filter device comprises a box body, an ash removal device is assembled in the box body, the ash removal device comprises a filter screen II, the interior of the box body is fixedly connected with a hydraulic bin I, and the hydraulic bin I is fixedly connected with a hydraulic pump. A piston at one end in the first hydraulic bin is slidably connected with a first hydraulic rod, a piston at the other end in the first hydraulic bin is slidably connected with a second hydraulic rod, and the tail end of the second hydraulic rod is rotatably connected with a first rotating rod in a penetrating mode. According to the device, the dust removing device is arranged, through cooperation of a first rotating rod, a barrel brush and other structures, hydroxypropyl methyl cellulose dust is removed and collected into the storage box after filtering is completed, and meanwhile it is guaranteed that the dust in the storage box cannot be blown up again to be attached to a filter screen in the filtering process; therefore, the problem that ash removal operation is complex and tedious is solved, and the effects that the filter screen is smooth and dust is convenient to remove and recycle are achieved.

A portable small protective workstation for alpha nuclide operation comprises a protective cabin, a transparent window and glove holes are formed in the front side face of the protective cabin, radiation-resistant operating gloves are embedded in the glove holes in a sealed mode, a tray inlet is formed in the side face of the protective cabin, and a drawer type bracket is connected to the tray inlet in a sliding mode. The drawer type bracket comprises a tray layer, a cushion layer and a cover plate, the tray layer and the cushion layer are both vertically and fixedly connected to the side face of the cover plate, the tray layer is located above the cushion layer, a high-adsorbability radioactive water absorption pad is fixedly installed on the cushion layer, a plurality of through holes are formed in the bottom face of the tray layer, and the tray layer and the cushion layer are movably installed in the protection cabin body through a tray inlet. The cover plate abuts against the outer side face of the protection cabin in a sealed mode. An air filter box is arranged above the protective cabin body, and a filter layer is arranged in the air filter box. According to the utility model, the defects in the prior art are overcome, and the organic unification of radiation protection, pollution control and experiment convenience for operators is realized.

An electric vehicle endurance system composed of battery formation and electrolyte injection, ventilation, and cooling systems, comprising a battery formation and electrolyte injection system, a battery case air filtration system and an annular battery cell cooling system which are arranged on an electric vehicle. When the electric vehicle is used, the temperature of an annular battery cell rises during operation of the annular battery cell, and the annular battery cell cooling system reduces the temperature of the annular battery cell. The battery case air filtration system is responsible for discharging and supplementing gas generated during the operation of the annular battery cell. The electrolyte lost during the operation of the annular battery cell is supplied by the battery formation and electrolyte injection system. The present application can simultaneously provide the following formation methods, i.e., low-temperature formation, small current formation and open formation; the formation process of the annular battery cell is delayed to the electric vehicle; and low-temperature formation, small current formation and open formation are realized on the electric vehicle. Battery cells and battery cases produced by means of the method are transported across countries and continents by air to designated locations for installation in electric vehicles before being formed.

The invention discloses double-layer air filter paper with high interface adhesion as well as a preparation method and application of the double-layer air filter paper. The air filter paper is used as a paper base, nanofiber is deposited on the surface of the paper base through electrostatic spinning to form a fiber membrane, and then drying and thermal crosslinking are performed to obtain the air filter paper. A spinning solution adopted in the electrostatic spinning is a spinning solution obtained by dissolving polyurethane in a DMF / THF mixed solvent, and a silane coupling agent is added into the spinning solution for blending. The interface adhesive force between the fiber membrane and the paper base is improved by controlling the type, the adding amount, the thermal crosslinking temperature and the thermal crosslinking time of the added silane coupling agent, the diameter of the fiber is reduced to the nanoscale by regulating and controlling the parameters of the spinning solution, the composite stability of the double-layer air filter paper is guaranteed, and meanwhile the filtering performance of the air filter base paper is improved.

The present invention belongs to the technical field of constant temperature and humidity air-conditioning units, and in particular to a bidirectional energy-saving constant temperature and humidity air-conditioning unit. In view of the problem in the prior art that the fan power will increase once the membrane cloth humidifier is turned on, the following scheme is proposed, including a unit cover with a square tubular structure placed horizontally as a whole, wherein the interior of the unit cover is fixed with a partition frame 1, a partition frame 2 and a sealing baffle with parallel and vertical plate surfaces, an air filter cloth is provided on the surface of the sealing baffle, and an evaporator module is provided in the middle of the partition frame 2, and the space between the partition frame 1 and the partition frame 2 is a humidification space. The present invention can not only allow the airflow to quickly pass through the bell mouth during ventilation and take away the water vapor on the surface of the water-absorbing membrane cloth 1 or the water-absorbing membrane cloth 2 on both sides, but also allow the airflow to quickly and easily pass through the gap between the two adjacent membrane cloths, avoiding the traditional need for pressurization and acceleration to pass through layers of membrane cloth, thereby greatly reducing wind resistance.

An air filter for an air filter assembly in an air conditioner is provided, in particular for filtering out particles, preferably pollutants, from air. The air filter contains a filter element with an electrically conductive layer. The air filter also has a housing that partially encompasses a housing interior into which the filter element is inserted. The air filter also has a terminal on the housing that can be contacted from outside the housing interior, which is made of an electrically conductive material and is connected to the conductive layer of the filter element.

The invention discloses a filter element with a self-cleaning function, and relates to the technical field of air filtration. A filter element with a self-cleaning function comprises a filter element assembly, the filter element assembly comprises a first filter element mechanism, the first filter element mechanism comprises a first filter element, and the two ends of the first filter element are fixedly connected with first element bases respectively; the filter element assembly further comprises a second filter element mechanism, the second filter element mechanism comprises a second filter element, and the two ends of the second filter element are fixedly connected with second element bases respectively. A brush mechanism is arranged between the first filter element mechanism and the second filter element mechanism and comprises a base plate, the two ends of the base plate are fixedly connected with dust storage bases respectively, the dust storage bases are filled with dust sticking glue, one side of the base plate is fixedly connected with a first bristle mechanism, and the other side of the base plate is fixedly connected with a second bristle mechanism; an air pump mechanism is arranged at the bottom of the filter element assembly; according to the filter element with the self-cleaning function, produced clean gas serves as a blowback gas source, and the protection performance of the first filter element mechanism is improved.

The invention discloses an air filtering system and method, and relates to the technical field of vehicle engineering.The air filtering system comprises an air inlet module, an air inlet flow control module, an air filtering module and a temperature detection module, and the air inlet module comprises a high-temperature air guiding pipe and a normal-temperature air guiding pipe; the normal-temperature air guide pipe is used for sucking normal-temperature air in the external environment; the high-temperature air guide pipe is used for sucking high-temperature air generated in an engine cabin; the air filtering module is used for filtering the mixed air; the filtered mixed air enters the engine; the temperature detection module is used for detecting the mixed air temperature of the mixed air; the air inlet flow control module is used for controlling the air flow proportion between the normal-temperature air and the high-temperature air sucked by the air inlet module according to the mixed air temperature so that the mixed air temperature can be within the standard temperature interval. The filtering effect of the air filtering module can be improved, the service life of the air filtering module can be prolonged, and the maintenance cost of the air filtering module is reduced.

The invention discloses a radioactive air filtering device, and relates to the technical field of radioactive gas treatment. Comprising a particle impurity removal mechanism, a spraying mechanism and an adsorption mechanism, the particle impurity removal mechanism comprises an impurity removal barrel, and an efficient air filter screen is rotationally arranged in the impurity removal barrel; the spraying mechanism comprises a washing tank, a spraying pipe is rotatably arranged in the washing tank, a plurality of spraying heads are fixedly arranged on the lower surface of the spraying pipe, a rotary movable pipe is rotatably arranged on the upper surface of the washing tank, and the bottom end of the rotary movable pipe extends into the washing tank and is fixedly connected with the upper surface of the spraying pipe. By arranging the particle impurity removal mechanism, radioactive air can be primarily filtered through a cylindrical efficient air filter screen in an impurity removal barrel, large-particle dust and impurities in the radioactive air are effectively removed, and meanwhile radioactive aerosol in the radioactive air can be captured and adsorbed through the efficient air filter screen; and preliminary filtration of radioactive gas is realized.

The utility model discloses a special-shaped air filter which comprises a shell, the shell is forwards connected with an air outlet end cover, the shell is backwards connected with a rear end cover, a filter element is arranged in the shell, an air inlet is formed in the shell, and an air outlet is formed in the air outlet end cover. The axial direction of the filter element extends in the front-back direction, a supporting cylinder used for supporting the front end of the filter element is arranged on the front end face of the shell, and the front end of the filter element is inserted into the supporting cylinder. A cavity between the filter element and the shell forms an air inlet cavity, the air inlet cavity is communicated with an air inlet, and the air inlet is in a big-end-down horn mouth shape. The filter element comprises an outer filter element and an inner filter element which are coaxially sleeved together; two groups of filter elements are arranged in the shell side by side up and down at intervals. The air inlet with the small outside and the large inside enables airflow to be better expanded to all the air inlet cavities, flow collection of all parts of the surface of the filter element is more uniform, and the situation that some parts of the filter element are blocked in advance and the overall service life of the filter element is shortened is avoided. The two groups of filter elements are arranged in parallel, so that the same air filtering capacity requirement is met, the diameters of the filter elements are reduced, and the device is more matched with an in-vehicle mounting space which is narrower in the left-right direction and higher in height.

The utility model relates to a portable water trapping device based on MOFs (Metal-Organic Frameworks). The portable water trapping device comprises a main shell, and an air inlet and an air inlet fan are arranged at the top of the side surface of the main shell; an HEPA (High Efficiency Particulate Air) filter screen and an activated carbon air filtering module are arranged below the air inlet fan; an MOFs water molecule adsorption module and an electric heating element for heating the MOFs water molecule adsorption module are arranged below the activated carbon air filtering module in a communicating manner; a thermoelectric refrigeration TEC element and a condensation cavity in contact with a refrigeration area of the TEC element are arranged below the MOFs water molecule adsorption module, and an exhaust port communicated with the condensation cavity is formed in the side face of the main shell; a water filtering module and a water tank communicated with the water filtering module are arranged below the condensation cavity in a communicating manner; a power distribution unit is further arranged in the main shell and used for supplying power to the air inlet fan, the electric heating element and the TEC element. The device can be carried to outdoor places such as the field, air water trapping in a dry environment is achieved, and fresh water resources are provided for use.

An apparatus, including a controller; an air intake system located at a vehicle; an air filtration system; an environmental control system; an air tank located at the vehicle; a water harvesting system; a water filtration system; and a water storage tank located at the vehicle. The controller controls an operation of the air intake system, the air filtration system, the environmental control system, the water harvesting system, and the water filtration system. The air intake system intakes air from an external environment, and the air filtration system filters or purifies the air. The environmental control system heats the air or cools the air. The air tank stores the air and the water harvesting system harvests water from the air. The water filtration system filters or purifies the water and the water storage tank stores the water.

The utility model provides an air filtering device for a gas compressor, which comprises a gas compressor body, one end of the gas compressor body is communicated with an air inlet pipe, one end of the air inlet pipe is in flange connection with a tank body, a back flushing component is arranged in the tank body, and a fan is arranged on one side of the tank body. One end of the fan is communicated with a filter box through a pipeline, one side of the filter box is communicated with three air suction pipes through pipelines, and one ends of the air suction pipes are communicated with the outer side of the tank body. The air filtering device for the gas compressor solves the problems that when an existing device is actually used, even flow through hole plates are arranged on the two sides of filter element cotton, air is evenly dispersed through a plurality of small holes in the even flow through hole plates to be input and filtered, but the small through holes are prone to being blocked by dust and impurities, and the filtering effect is poor. The filter effect of the filter core cotton and the air inlet efficiency of the compressor are influenced, and the filter core cotton is inconvenient to disassemble and clean and is inconvenient to use.

The invention relates to the technical field of air filtering, and particularly discloses an anti-pollution air filtering device which comprises a box body, an air inlet and an air outlet, the air inlet and the air outlet are formed in the two ends of the box body respectively, the air inlet sucks air into the box body, the air outlet discharges treated air into a room, a filtering cavity is formed in the box body, and the filtering cavity is communicated with the box body. The filtering cavity is communicated with the air inlet, a filtering part is connected into the filtering cavity and used for filtering dust in air, the detection assemblies are connected into the filtering cavity, arranged at the two ends of the filtering part and used for detecting whether the wind resistance of the filtering part is increased or not, and when the difference value of the wind resistance on the two sides of the filtering part is within the standard value range, the detection assemblies are connected into the filtering cavity. The detection assembly monitors that the filtering part is in the unblocked state, when the detection assembly monitors that the difference value of the wind resistance on the two sides of the filtering part exceeds the standard range, the detection assembly detects whether the filtering part is blocked or not according to the difference value judgment value before and after the filtering part, then the filtering part can be cleaned in time, and transmission of the wind speed and the wind power is prevented from being slowed down.

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 discloses a construction dust collecting and purifying device, relates to the technical field of air filtering, and aims to solve the problems that a filtering structure cannot be adjusted according to the dust concentration in air, and when the dust concentration in the air is relatively high, the air flowing resistance is increased, and the dust concentration in the air cannot be adjusted in the prior art. In order to solve the problem that a large amount of large-particle dust in air cannot be quickly filtered in the prior art, the invention provides the following scheme that the pre-separation device comprises a pre-separation barrel and a dust collection drawer, the pre-separation barrel comprises a barrel body, a vibration ring concentric with the barrel body and a spiral elastic flow guide plate, and an adjusting mechanism is arranged in the barrel body; the adjusting mechanism comprises four electric push rods achieving synchronous action through a PLC, an extrusion cylinder with a plurality of fixing openings formed in the outer wall of the bottom and a plurality of filter screens. The spiral structure can be adjusted in real time according to the air dust concentration, vibration generated in the construction process and vibration generated during eccentric rotation can be utilized, the air flowing resistance can be prevented from being increased, and large-particle dust can be rapidly pre-separated.

A chick transport vehicle based on intelligent environment control comprises a vehicle body and a compartment, an air conditioning system composed of a condenser and an evaporator is arranged in the front side of the compartment, a circulating fan of the air conditioning system is arranged in the front side of the compartment, a fresh air blower communicated with the outside is further arranged in the rear side of the compartment, and an intelligent control cabinet is arranged on the front side of one side of the compartment. The intelligent control cabinet is composed of a PLC, a temperature and humidity sensor, a carbon dioxide sensor, a pressure difference transmitter, an air filter bag and a computer display screen, wherein the temperature and humidity sensor, the carbon dioxide sensor and the pressure difference transmitter are evenly arranged on the top of the compartment. Intelligent automatic control over fresh air is achieved, and automatic entering of the fresh air, automatic discharging of carbon dioxide, automatic air overflowing of the compartment and automatic temperature control are achieved; the tail loading and unloading platform is effectively prevented from being opened due to bumping in the transportation process or being separated from the double-door structure to form a large gap, and the tail loading and unloading platform is closed more firmly in the transportation process.

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 belongs to the field of intelligent adsorption nitrogen making machines, and particularly relates to an intelligent self-adaptive pressure swing adsorption nitrogen making machine which is characterized in that two alternate nitrogen making pressure swing adsorption tank bodies are arranged between an air filtering system and a nitrogen storage tank in a communicating mode, and each pressure swing adsorption tank body is provided with a plurality of sieve plates capable of sliding to be close to each other; molecular sieve particles are filled in the pressure swing adsorption tank body among the plurality of sieve plates, a plurality of conical sleeves are arranged on the upper end surface of each sieve plate, a spiral transmission plate is rotatably arranged in each conical sleeve, and an annular inclined sieve plate is arranged on the excircle surface of the upper end of each conical sleeve; annular plates are arranged between the conical sleeves and the annular inclined sieve plates, and a plurality of feeding ports are formed in the outer circle face of the lower end of each conical sleeve. By arranging the conical sleeve and other components, the molecular sieve in the pressure swing adsorption tank can be stirred up and down, so that the desorption efficiency of the molecular sieve is improved, and meanwhile, dust generated by crushing in the molecular sieve can be separated.

The invention discloses heat recovery equipment with an air filtering function. The heat recovery equipment comprises a bin body, a heat exchange core is arranged in the bin body; the heat exchange core is composed of a plurality of heat exchange plates arranged in parallel. A fresh air channel is arranged in the middle of the heat exchange plate; a waste gas channel is arranged between every two adjacent heat exchange plates; a fresh air inlet is formed in one side of the bin body; the fresh air inlet of the bin body is communicated with fresh air channels of the plurality of heat exchange plates of the filter element; a filtering module is arranged at the end, away from the fresh air inlet, of the fresh air channel in the bin body in a communicating mode. An air supply fan is arranged on the side, away from the heat exchange core, of the filtering module in the bin body. An air outlet of the air supply fan extends and communicates to the outer side of the bin body; waste gas outlets are formed in two sides of the bin body opposite to the heat exchange core; a waste gas exhaust fan is arranged on the upper side of the bin body opposite to the heat exchange core; and the waste gas exhaust port is communicated with the waste gas channel and then is communicated with an air inlet of the waste gas exhaust fan.