58 results about "Contaminated air" patented technology

The utility model belongs to the technical field of poultry breeding ventilation, and particularly relates to an organized vertical negative ion ventilation system for a poultry breeding house. Most of existing poultry breeding house ventilation systems adopt a longitudinal French ventilation mode, have the problems that ventilation is unbalanced, contaminated air is prone to being accumulated in a concentrated mode, temperature and humidity are unbalanced, carbon dioxide is inconvenient to discharge and the like, and are difficult to cope with a high-density poultry breeding environment. The utility model provides a novel poultry breeding house ventilation system, which adopts an upper-inlet lower-outlet vertical organized ventilation mode, realizes better ventilation of air in a poultry house, and creates a healthier ecological environment suitable for poultry. The poultry house comprises a poultry house body, a plurality of cages which are evenly distributed are arranged in the poultry house body, and a wet curtain and an ionization device are arranged in an air inlet chamber on one side of the outer portion of the poultry house body and used for controlling the temperature and humidity of fresh air and ionizing the fresh air into air with negative oxygen ions. An exhaust chamber is arranged on the other side outside the poultry house and used for filtering sundries, purifying waste gas and recycling cold and heat.

This invention relates to an air purification device designed to remove a wide range of volatile and semi-volatile organic compounds from contaminated air The system integrates a chemical scrubber with an electrochemical reactor that generates ferrate(VI) solution in situ. The reactor uses two iron electrodes immersed in a 14 molar sodium hydroxide solution, powered by a direct current converter operating at 24 volts. Upon activation, ferrate(VI) ions are formed, indicated by a purple coloration in the solution. The ferrate(VI) solution is immediately circulated through a packed- bed scrubber, where it contacts the polluted air. Organic compounds are absorbed into the liquid phase and oxidized by ferrate(VI), resulting in cleaner air. The system is equipped with drainage for spent solution and can be integrated into industrial, laboratory, or indoor ventilation setups.

The utility model relates to a multifunctional air conditioner for an industrial building. A rack forms a closed structure through a plurality of side plates arranged around the rack; outdoor fresh air can enter the machine frame through the outdoor air inlet, is filtered through the bag type filter, is preheated or precooled through the energy recovery heat exchanger, and is blown out from the indoor air outlet under the action of the first fan. Indoor air can enter the rack through the indoor air inlet and is exhausted through the outdoor air outlet, so that indoor contaminated air is exhausted outwards; indoor air can also enter the rack from the indoor air inlet, the air return valve is opened, the indoor air is blown out from the indoor air outlet after passing through the energy recovery heat exchanger and the first fan, and indoor air circulation is achieved. Outdoor fresh air introduction, indoor vitiated air discharge and indoor air circulation are integrated in the rack, different functions are achieved according to requirements, the equipment integration degree is high, space utilization is reasonable, and operation and maintenance are convenient.

The application discloses a long-distance tunneling roadway dirty air intelligent recovery system and method, and belongs to the technical field of mine ventilation. The long-distance tunneling roadway dirty air intelligent recovery system comprises a positive pressure air supply system and a negative pressure dirty air recovery system. The positive pressure air supply system is used for supplying fresh air flow to a working face. The negative pressure dirty air recovery system is used for monitoring the air quality in a roadway and discharging the contaminated air in the roadway. The application solves the problem that the prior art cannot perform good local ventilation in roadway single heading or stope application. The application realizes intelligent recovery of toxic and harmful gases such as dirty air in an ultra-long-distance single heading transportation roadway and tail gas of trackless equipment through reasonable arrangement of a wind cylinder and a local fan and effective cooperation with a gas monitoring sensor, thereby creating a good ventilation working environment underground and reducing the occurrence of occupational diseases of underground workers.

The invention discloses a spraying device for a perovskite solar cell and an operation method, and relates to the technical field of solar cells, the spraying device comprises a base, a conveying assembly, an environment control assembly and a spraying assembly, the environment control assembly comprises a box body, a gas inlet pipe, a gas transmission mechanism and a gas outlet pipe; the spraying assembly comprises a first linear driving piece, a second linear driving piece, a third linear driving piece, an ultrasonic spray head, a material pipe and a placing barrel. A closed space is provided for spraying through the box body, external environment interference is isolated, impurities are prevented from making contact with a to-be-sprayed substrate, air entering the box body is purified through the air conveying mechanism, so that the air pressure in the box body is kept stable, polluted air is exhausted, the oxidation and hydrolysis risks of perovskite materials are reduced, and the spraying efficiency is improved. And the photoelectric conversion efficiency and long-term stability of the cell are improved.

Contaminated air treatment system, comprising: at least one enclosed space for containing a source of contaminated air; a subterranean treatment tunnel comprising one or more openings connecting the treatment tunnel with the enclosed space, said subterranean treatment tunnel having located therein contaminated air treatment means; air circulating means configured to drive contaminated air from the at least one enclosed space into the treatment tunnel via the one or more openings and through the air treatment means, said treatment means comprising at least a first treatment stage comprising a spraying arrangement configured in use to spray the contaminated air to entrap contaminant particles in a liquid / sludge residue, and a treated air exhaust to exhaust treated air after it has passed through the treatment tunnel.

The invention discloses an electrical cabinet body convenient to maintain, and relates to the technical field of electrical cabinets, the electrical cabinet body specifically comprises a base and a protection structure, the top of the base is connected with an electrical cabinet body, and the top of the electrical cabinet body is provided with an upper cover; the protection structure comprises a protection sleeve movably arranged on the outer ring of the electrical cabinet body in a sleeving mode, an exhaust fan connected with the electrical cabinet body, and an air blowing dust removal structure connected with the electrical cabinet body. The telescopic protection structure is used for sealing the front side area of the cabinet door of the electrical cabinet, the closed space isolated from the external environment is formed, an active air circulation mechanism is adopted, original dust-containing or polluted air in the closed space is continuously replaced, the space is full of air meeting the clean standard, and therefore the air purification effect is improved. Therefore, a dust-free environment is provided for the maintenance operation of the electrical cabinet, external dust, water vapor and other impurities are effectively prevented from invading the interior of equipment, and the cleanliness and operation reliability of electrical components in the maintenance process are fundamentally guaranteed.

An apparatus for machining composite-material workpieces containing metal and non-metal has at least one machine which is used to machine the composite-material workpieces and which isolates shavings containing metal and non-metal or isolates other particles, and a suction and cleaning device for air contaminated with such particles. The suction and cleaning device has a fan and, arranged in fluidic sequence for multi-stage cleaning of the contaminated air, a cyclone separation stage, at least two mechanical filter stages and an activated carbon filter stage. The cyclone separation stage has a packet of at least three, preferably at least six, individual cyclones fluidically connected in parallel, which are arranged around a feed which supplies them via a distribution star. The individual cyclones have upwardly directed outlets for cleaned air; and above the outlets of the individual cyclones, a first of the mechanical filter stages is arranged engaging around the allocated feed.

The invention provides a tool for manufacturing an injection molding machine, and belongs to the technical field of injection molding machine manufacturing equipment.The tool comprises a welding platform, a welding butt-joint moving module is arranged at the upper end of the welding platform, and a columnar piece fastening module and a square piece fastening module are arranged at the upper end of the welding butt-joint moving module; a polluted air treatment module is arranged at the lower end of the polluted air extraction module; the polluted air treatment module comprises a recovery tank, the top of the rotating channel extends out of the first assembly shell and is provided with a stripping unit used for stripping waste materials, a diffusion unit used for treating air for the first time is arranged in the center of the interior of the recovery tank, and a shower head used for wetting air is arranged at the upper end of the interior of the recovery tank. The problems that most of existing tools for manufacturing the injection molding machine can only be used for fixing accessories in one shape, limitation is large, surrounding air can be polluted during welding, the polluted air cannot be treated during welding, and environmental protection performance is low are solved.

An air sterilisation unit comprising: a housing having an air intake arranged to allow contaminated air to enter the housing, and an air outlet arranged to allow sterilised air to exit the housing; and air sterilisation assembly arranged to sterilise air within the housing by entrapping or removing particulate matter from the air flowing from the air intake to the air outlet.

The utility model relates to the technical field of cabs, and discloses a tractor cab which comprises a cab body, a damping rubber pad is glued to the top face of the cab body, a connecting plate is attached to the bottom face of the damping rubber pad, a connecting mechanism is arranged on the bottom face of the connecting plate, and a damping bottom plate is arranged at the bottom of the connecting mechanism. A sunshade mechanism is fixedly installed on the edge of the top face of the cab, a suction fan is arranged on one side of the top face of the cab, and an air supply fan is arranged on the other side of the top face of the cab. According to the tractor cab, through the arrangement of the purification mechanism, contaminated air in the cab is pumped out through the air supply fan, the air is filtered and purified through the filter net and the activated carbon net, and then the purified air is conveyed into the cab through the air supply fan, so that the effect of purifying the air in the cab is achieved; dust particles in the air are prevented from being inhaled by a driver, and health is prevented from being affected.

The present disclosure relates to a barrier system for shielding humans from harmful exposure to fire, smoke, noxious fumes, or contaminated air. Some embodiments provide a deployable barrier system that has a barrier retract assist system configured to assist a user in manually moving the barrier from the deployed position toward the retracted position with at least a portion of the barrier being rolled onto the barrel portion for egress past the barrier. The retract assist system can be positioned inside of the barrel portion.

The utility model relates to an integrated air conditioning unit coupled with a fresh air heat recovery function. The integrated air conditioning unit comprises a shell, a first space, a second space and a fourth space. The first space is provided with an indoor heat exchanger, an air feeder, an air return port and an air supply port; the second space is provided with a heat recovery core body, a fresh air fan, an exhaust fan and a ventilation exhaust outlet; the third space is provided with an outdoor fan and a fresh air opening; and the fourth space is provided with an outdoor heat exchanger and an outdoor exhaust outlet. Thus, by means of the structure, the air conditioning unit achieves indoor airflow circulation, fresh air heat recovery circulation and outdoor airflow circulation. In addition, the air conditioning unit adopts the three-in-one design of air conditioning, fresh air and heat recovery, and the occupied area is reduced. Besides, heat exchange between indoor air and outdoor air is achieved through the heat recovery core body, waste heat in the indoor contaminated air can be fully recovered while the indoor contaminated air is exhausted, the waste heat is used for preheating or precooling fresh air about to enter a room, and energy consumption is reduced.

The present disclosure is useful for extraction and filtration of contaminated air in laser printing systems for microscope slides. Systems, methods, and apparatus are provided for providing extraction and filtration techniques for polluted air output from a laser printing system. The extraction and filtration technique includes: a plenum proximate to a printing or marking area of a laser printing system for receiving emissions output from the laser printing system and containing contaminated air containing the emissions to reduce the volume of the contaminated air; one or more filters for filtering emissions from the contaminated air, one or more filters for filtering emissions from the contaminated air; and a fan assembly in fluid communication with the plenum for extracting the contaminated air to cause a flow of the contaminated air to flow out of the plenum and through the one or more filters to filter at least a portion of the particulate matter and volatile organic compounds from the contaminated air to produce filtered air.

The invention discloses a water conservancy tunnel ventilation and dust fall purification device, which relates to the technical field of tunnel ventilation and dust fall, and comprises a ventilation fan and a ventilation and dust fall air pipe, the ventilation and dust reduction air pipe is fixedly connected with the air inlet end of the ventilation fan through a flange, and the ventilation and dust reduction air pipe is used for directly sucking contaminated air in the working environment in the tunnel out of the tunnel. When a hose is damaged, a worker can hold a buckling handle and a middle-position force application handle, a magnetic attraction positioning head is moved into an arc-shaped groove, a hollow wrapping air bag is deflated, a covering hose layer is pulled to wrap the damaged position of the hose, and positioning is conducted through the magnetic attraction positioning head and a magnetic attraction positioning groove; meanwhile, the hollow wrapping air bag is filled with air to wrap the flexible pipeline for sealing, so that rapid repair of the flexible pipeline can be realized, the downtime is greatly shortened, the ventilation interruption time is reduced, the construction progress in the hole is guaranteed, the labor intensity is greatly reduced, complex sewing and repairing work does not need to be performed in the dangerous, narrow and dust-diffused hole, and the operation is simple.

The present application discloses a kind of tray class object cleaning equipment, to solve the problem of secondary pollution in existing cleaning technology, high energy consumption and big biological safety risk.It includes frame body and gas collection cover body, cover in sequence along conveying device setting cleaning station, rinsing station and purging station.And set a set of closed loop air collection purification system based on single fan: fan from cleaning station through negative pressure suction pipe suction contaminated air, the air enters the closed fan cover after demisting, adsorption and dehumidification;Fan uses its own operating waste heat to heat the inhaled clean air, and sends it to the purging station as high-temperature purge gas flow;Most of the purge gas flow returns to the cleaning station to form an internal circulation in the cover, and forms a negative pressure barrier at the inlet, thereby controlling the dispersion of water mist, aerosol and odor from the source.The present application has the advantages of compact structure, zero dispersion control of pollutants, significant environmental protection, energy saving and safety.

The present invention relates to a fully integrated equipment installed inside a toilet tank for the extraction and evacuation of odours as well as contaminated air that is usually found in a toilet, and continuously guarantees a passive water trap to block the return of odours from the sewer connected to the sanitary appliance.

The application provides an AGV automatic running vehicle for medical materials, and relates to the technical field of running vehicles, which comprises a placing platform, a walking assembly is arranged below the placing platform, a control console is fixedly installed on one side of the placing platform, a jacking assembly for storing materials is arranged on the other side of the placing platform, and a protection assembly for protecting the materials is fixedly installed in the middle of the placing platform. The protection assembly can isolate and protect the medical materials, effectively isolate the external contaminated air, avoid the pollution of the medical materials in the transfer process, and keep the low-temperature environment stable by increasing the flexible film roll, so that the stability of the materials is guaranteed, and the transfer quality is improved.

The present application relates to the field of microbial technology, in particular to a strain of Rhodococcus sp YH-1, its application and aromatic hydrocarbon pollution degradation agent, the Rhodococcus sp YH-1 is preserved in China typical culture preservation center on April 30, 2024, and the preservation number is CCTCC NO:M2024845.The Rhodococcus sp YH-1 of the present application has good degradation performance to benzene, toluene, chlorobenzene and o-dichlorobenzene.When degrading for 96h, the degradation rate of Rhodococcus sp YH-1 to 1000mg / L toluene, chlorobenzene and o-dichlorobenzene all reaches more than 50%;The degradation rate to benzene with concentration of 20-1000mg / L reaches more than 90%.The results show that Rhodococcus sp YH-1 has good degradation effect to aromatic hydrocarbon, and it has high practical application value and broad development prospect in repairing aromatic hydrocarbon contaminated soil, purifying aromatic hydrocarbon contaminated air and treating aromatic hydrocarbon wastewater.

An exhaust device and a cooking appliance having same, according to one embodiment of the present disclosure, comprise: a top plate including a suction part for suctioning contaminated air; an air curtain part for discharging air toward the suction part; and an elevating module for elevating the air curtain part in the vertical direction with respect to the top plate, wherein the elevating module includes a weight balancer for adjusting a weight load of the air curtain part caught by the elevating module.

The utility model discloses a fixed environmental protection dust removal hopper, including the hopper body, the hopper body one end is provided with the dust remover body, the hopper body bottom is provided with the transportation subassembly, the hopper body includes the outer hopper and the inner hopper of fixed mounting in the outer hopper bottom, the outer hopper top end is provided with the feed inlet, when the material passes through the grab bucket release, it will cause the extrusion to the elastic skin flap, makes the elastic skin flap take place the elastic deformation, at this moment, the material passes through the curved elastic skin flap, and gathers in the inner hopper below through the feed inlet, this will make a large amount of air be replaced, this will make the air enter the atmosphere, take away a large amount of dust material, because the pressure difference between the outer hopper and the atmosphere, the curved flap has been closed, so form an effective sealed space, like a check valve, control the contaminated air exhaust, the elastic deformation characteristic of elastic skin flap greatly reduces the volume of the air required to control the dust.

The invention relates to the technical field of environment detection, and discloses an unmanned aerial vehicle for air quality detection, the unmanned aerial vehicle comprises an unmanned aerial vehicle body, the top of the unmanned aerial vehicle body is provided with a liftable sampling head; the air collector is communicated with the sampling head and comprises a hollow pipe and a second collecting cylinder communicated with the hollow pipe, and the second collecting cylinder is sleeved with a first collecting cylinder; a vibration assembly is arranged between the sampling head and the first collecting cylinder, and the first collecting cylinder can be knocked by the vibration assembly in the lifting process of the sampling head. Through the innovation of a pure mechanical structure, the air inlet can be lifted to a position above a turbulent flow area of the rotor wing by utilizing the liftable sampling rod at the top, so that an unpolluted air sample is collected, the core target of collecting a high-fidelity air sample in a high-vibration and strong-airflow environment is realized, and a reliable data basis is provided for environment monitoring.

Invention is described which sterilizes air contaminated with airborne virus by means of superheating the air to over 400 Fahrenheit then cooling air to breathable temperatures. The invention disposes a fan pushing contaminated air into a positive temperature coefficient semiconductor heater to superheat the air which is subsequently cooled by a two stage cooling system. First stage of the cooling system is an air-to-air heat exchanger using ambient air from second fan to cool the superheated air. The second stage of cooling is provided by a solid-state Peltier heat pump which further transfers heat energy to ambient air provided by a third fan. Invention is disposed onto a sealed helmet which the sterilized air is conveyed causing an overpressure to eliminate the possibility of contaminated air entering the helmet. The invention is entirely reusable after use in a contaminated environment and does not rely on filters to remove airborne virus.

The application discloses a biosafety cabinet detector and relates to the technical field of biosafety cabinets.The biosafety cabinet detector comprises a biosafety cabinet component, and an emergency protection component, an emergency suction component and a microorganism detection component are arranged in the biosafety cabinet component respectively.When the biosafety cabinet detector is used, the emergency blower sends air into the air inlet cavity, blows the vertical air current downward through the air blowing pipe, quickly forms a gas screen, and prevents the contaminated air from leaking out in the first time.Meanwhile, the alarm is triggered to remind the staff to leave, and then the positive and negative motor drives the arc-shaped protection plate to turn out.The emergency air suction machine sucks the air into the cabinet body through the air suction port, and the exhaust fan sends the gas to the second filter box body for treatment.Then, the multi-stage electric push rod drives the front window to move downward, is closed, forms the vertical air current screen barrier, combines the emergency suction gas, closes the loop to purify the air, and finally physically closes the end, so that the safety is effectively improved.

A surgical treatment system for contaminated air streams having particulate contamination, polar contamination and / or nonpolar contamination in the gas or vapor stream. A surgical smoke plume treatment system and method provide or define a multi-stage treatment process that mechanically filters the air stream, followed by nonpolar decontamination and then polar decontamination or treatment. The system may be used stand alone or incorporated and used with other surgical instruments or incorporated into an air handler adapted to decontaminate an air stream. A desiccant may optionally be used to remove water from the air stream.

The invention discloses a safety system (4) for a combustion engine (2', 2") utilizing a low flashpoint fuel, the system comprising: a cover (8) arranged to be positioned near the engine to create a low-pressure environment around the engine, the cover configured to generate sufficient low pressure (15) to draw in air from around the engine; an inlet conduit (14) connecting the cover to the engine's air intake (20), configured to maintain the low-pressure environment and direct the fuel vapour-contaminated air into the air intake; a fuel sensor (12) arranged to monitor the concentration levels of fuel vapor (3) in the inlet conduit (14) due to low flashpoint fuel leaking from the engine; wherein the fuel sensor is configured to detect when a threshold concentration of fuel vapor in the inlet conduit is exceeded and to trigger a control response to cut off a fuel line supplying the low flashpoint fuel to the engine.

Hydroxyl-based system for disinfecting contaminated air / liquid and inhibiting contaminants and / or odors and / or gases from the air / liquid rapidly. The Hydroxyl-based system comprises a hydroxyl generator for generating hydroxyl radicals having an increased lifetime ranging between seconds to days and an activated material characterized by a multi-porous surface. The hydroxyl radicals and the contaminated air / liquid flow through the activated material to allow fast filtration and disinfection of said contaminated air / liquid, wherein the hydroxyl radicals have an increased lifetime required to reach the activated material and to adsorb with contaminant molecules into cavities of the activated material. In addition, the hydroxyl radicals clean / renew the activated material and enhance the actions of the activated material. Thereby, the hydroxyl-based system disinfects the contaminated air / liquid and inhibits contaminants and / or odors and / or gases from said air / liquid rapidly.

A system for enhancing ultraviolet air disinfection in an enclosed space includes at least one Coandă-effect diffuser coupled to an HVAC supply and mounted adjacent the ceiling of the enclosed space. The diffuser redirects supplied air received from the HVAC supply along the ceiling to induce a room-scale rotational airflow pattern. At least one upper-air ultraviolet luminaire is positioned within the upper region of the enclosed space to generate an ultraviolet irradiation region. The diffuser establishes a circulating airflow that entrains contaminated air from the lower region and transports the contaminated air into the ultraviolet irradiation region produced by the upper-air ultraviolet luminaire. The circulating airflow delivers treated air from the ultraviolet irradiation region toward an occupied region of the enclosed space.

The utility model discloses a TBM shield tunnel ventilation enhancing device which comprises a mountain body, a tunnel body is arranged in the mountain body, an air injection assembly and an air exhaust assembly are installed on the inner wall of the tunnel body respectively, and transmission assemblies are installed in the air injection assembly and the air exhaust assembly respectively. The outer surface of the air injection assembly and the outer surface of the air exhaust assembly are each provided with a control assembly, and the outer surface of the air injection assembly and the outer surface of the air exhaust assembly are each provided with a plurality of closing assemblies. According to the device, external air can be injected into the tunnel through the air injection assembly installed in the device, meanwhile, polluted air in the tunnel can be exhausted through the air exhaust assembly installed in the device, and under the interaction of the air injection assembly and the air exhaust assembly, the air in the tunnel is circulated, so that the air in the tunnel can be purified; therefore, by means of the device, the problem that in the using process of an existing device, air in the tunnel cannot be purified is effectively solved.

The utility model relates to the technical field of operating room purification equipment, and discloses an operating room purification air-conditioning system combining efficient filtration and negative pressure, which comprises an air bellow outdoor unit, a protective plate is attached to the outer wall of the air bellow outdoor unit, and a filter plate is arranged in the air bellow outdoor unit. The filter plate is composed of a glass fiber plate, a silica gel plate and a polypropylene superfine fiber plate, an air blowing box is arranged in the air bellow outer unit, an air feeder is arranged in the air bellow outer unit, a controller is fixedly connected to the outer wall of the air feeder, and the outer wall of the controller is fixedly connected to the outer wall of the air bellow outer unit. According to the utility model, through the combined action of the glass fiber plate, the silica gel plate, the polypropylene superfine fiber plate, the display screen and the differential pressure sensor, air entering the operation room is efficiently filtered, and meanwhile, the situation that polluted air in the operation room is diffused to other areas due to insufficient negative pressure is avoided; and the risk of medical negligence is reduced.