91 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.

To provide a multi-stage two-stream separator for mining, which is used in the process of obtaining raw materials from ore required for refining or other industries. The system includes a feed assembly (1), a screening assembly (2), a dust removal assembly (3), and a frame (4). The feed assembly is mounted on the top of the frame, and the screening assembly is mounted inside the frame. The screening assembly includes a stepped, multi-stage screening bed with at least two stages. The device provides a heavy component collection port on the lower side of the screening bed, allowing the heavy components to be continuously or intermittently discharged through the discharge assembly, reducing the amount of heavy components entering the next stage and fully utilizing the screening capacity of the screening bed. The screening assembly can be a continuous discharge assembly, an intermittent discharge assembly, or a gravity discharge assembly. Clean air treated by the dust removal assembly is drawn into the frame via an external air supply pipe, an air intake frame, and a blower for recycling. It is then recirculated by the screening assembly, and the contaminated air flow is sent back into the bag-type dust remover. This prevents the escape of coal powder and provides a rational overall design, pollution-free operation, and high screening efficiency.

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 utility model relates to the technical field of fermentation equipment, and discloses an in-situ detection device for sterile air for fermentation production, which comprises a culture tank and an air pipeline, a sterile culture medium is contained in the culture tank, and the sterile culture medium is set to be capable of changing color and / or changing pH value after infectious microbe culture. The air conveying pipeline is arranged between the culture tank and the air sterilization filter and can convey air treated by the air sterilization filter into the culture tank; the air conveying pipeline is provided with an aeration pipe section which extends into the culture tank and is immersed in the sterile culture medium, and a plurality of through holes which are arranged at intervals are formed in the aeration pipe section so that air conveyed by the air conveying pipeline can be dispersed into the sterile culture medium; the in-situ detection device provided by the utility model can be used for quickly and effectively detecting whether sterile air is contaminated or not, so that the adverse effect of the contaminated air on subsequent fermentation production is reduced.

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.

Fuel cell system comprising at least one fuel cell stack and a reformer unit, wherein the reformer unit is adapted to convert hydrocarbon fuel into a hydrogen rich gas. The reformer unit comprises an oxidizing agent inlet, a hydrocarbon fuel inlet, a reaction chamber, where the oxidation agent and the hydrocarbon fuel are reacted to hydrogen rich gas and byproducts, and a reaction chamber outlet for exiting the hydrogen rich gas. The fuel cell system further comprises at least one housing, which is adapted to accommodate at least one hydrogen leaking unit, particularly the at least one fuel cell stack. The housing has an air inlet for flushing the housing from potentially leakage hydrogen by means of inlet air and an air outlet for exiting the potentially hydrogen contaminated air from the housing. The air outlet is directly or indirectly in fluid connection with the oxidizing agent.

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.

Disclosed is a device for purifying or disinfecting contaminated air in an environment comprising a filter stack comprising a HEPA filter coated with a nanopolymer configured to puncture virus particles, a light chamber comprising UVC light source and an ion generator, where in the device is configured to take in contaminated air at the top of the device and expel purified air downward and away from each end of the device.

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.

A nanofiltration device for inactivating droplet-transmitted pathogens. The microdroplets are captured by filtering contaminated air on a filter material / paper with the nanofibrillated cellulose and / or nanocellulose surface treatment containing antiseptic metal ions and an adjuvant in the retained residual water. The air is sucked into the openings of the nanofiltration device located at the bottom and passes into the centre of the filter cartridge, in which a germicidal emitter emits radiation in the UV-C range of the electromagnetic wavelength spectrum is mounted. Subsequently, it flows through a filter paper containing salts of antiseptic metals, from the centre of the radiator outwards through a filter paper hermetically inserted into the filter cartridge, folded harmoniously-shaped so that its surface is maximally and entirely irradiated with UV-C radiation. Antiseptic ions diffuse into the contaminated microdroplets which with UV-C radiation deactivate viruses and disinfect bacteria. Subsequently, the droplets dry out, and the deactivated viruses and bacteria are carried away by air, which, with the help of adjuvants, receive the human body and increase the population's immunity.

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.

A critical area recirculation and exhaust system for a room operates in a normal operating mode where fresh air is delivered from an air handler through a diffuser and returned to the air handler through a room return duct. In a selected isolation operating mode, a fan filter unit is activated to draw contaminated air from the room through one or more filters and to expel the filtered air through the diffuser and through an exhaust air duct to create an increased air change rate and a negative pressure in the room.

The invention relates to a device (100) for filtering contaminated air, comprising: - at least one blower (10) for drawing in the contaminated air, - at least one intake chamber (8) for receiving contaminants from the intake air, wherein at least one filter segment (9) for filtering the contaminated air is arranged between the at least one receiving chamber (8) and the at least one blower (10), wherein the device (100) is further designed for cleaning the at least one filter segment (9), and a construction machine (200) for use in infrastructure construction.

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 present invention discloses an air sterilization device with an upward and downward bidirectional suction type diffuser airflow. The upper and lower bidirectional suction type diffusion airflow air sterilization device of the present invention comprises: first and second auxiliary cases having a tubular shape open in directions facing each other, on the sides having first and second air intake ports for drawing air from the outside, first and second pre-filters installed inside the air intake ports for filtering contaminants in the air, and first and second main filters provided in a form that shields the respective open upper and lower surfaces to remove residual contaminants in the air; and a sterilization water supply module comprising a compressor and a sterilization water tank installed inside the first auxiliary case for supplying sterilization water, and first and second spray nozzles respectively installed on one side of the first and second auxiliary cases in directions facing each other for high-pressure spraying of sterilization water. It comprises: first and second main cases connected to one side of each of the first and second auxiliary cases, providing a space in which sterilized water sprayed from the first and second spray nozzles and clean air passing through the first and second pre-filters are mixed and flow in a direction facing each other while forming a vortex; a connecting case connecting the first and second main cases with a part of its side open; and first and second centrifugal blowers installed vertically inside the connecting case, each performing an air intake action on the internal space of the first and second main cases to generate vortex air mixed with sterilized water and discharge it to the side. The upper and lower bidirectional suction type diffusion air sterilization device according to the present invention, configured as described above, has the advantage of enabling purification by rapidly removing contaminated air through the formation of an airflow throughout the entire room. This is achieved by forming airflows that induce the suction of contaminated indoor air from the upper and lower sections, respectively, and simultaneously discharging mixed sterilized air, which is formed by mixing clean air and atomized sterilizing water, through a discharge case positioned in the center. In other words, the present invention generates mixed sterilized air by spraying sterilized water onto clean air that forms a vortex inside the first and second main cases, and forms an airflow that discharges this air into the room through the side of a centrally positioned discharge case, thereby increasing the diffusion efficiency of the sterilized water in the indoor space. Consequently, effective sterilization of various pathogens, including viruses suspended in the air, is possible. Furthermore, effective removal and disinfection of contaminants such as bacteria or microorganisms attached to the inner walls of the indoor space, various items, fixtures, and the clothing of occupants are possible, thereby making the indoor air quality pleasant and maintaining good habitability.

A filter module for separating particles from contaminated air, includes a receiving element which has an inlet side for admitting an airflow to be cleaned and an outlet side for discharging the cleaned airflow, said inlet and outlet sides being opposite each other on the receiving element, and comprising a three-dimensional filter insert received in the receiving element. The filter insert has at least two transverse walls arranged approximately parallel to each other. Each transverse wall has at least one opening which are vertically offset and / or overlap vertically such that the air flow can be deflected onto different vertical levels through the openings. A wave-shaped airflow can be formed such that particles from the airflow to be cleaned are adhered in the filter insert in a uniformly distributed manner. A method for operating such a filter module and a method for assembling same are also provided.

Electric table grill (1), comprising: a shell-like housing, with a bottom (2) and wall elements (3) projecting vertically from the floor (2), a grill plate (4) as a first preparation level, which is parallel to the floor (2) and which is supported by the wall elements (3), an electric heater (5) arranged in the housing under the grill plate (4), and an air cleaning device (6) arranged in the housing for filtering contaminated air which rises from a grill surface (7) of the grill plate (4) during cooking of food, characterized in that the grill plate (4) has at least one suction opening (8) to which the air cleaning device (6) is connected, wherein the contaminated air is passed through the intake opening (8) into the air cleaning device (6) and is cleaned thereby, wherein the housing has at least one air duct (9) which is connected on the one hand via an opening to the air cleaning device (6) and on the other hand to at least one air outlet (10) opening openly from the top of the table grill (1), and through which the cleaned air is transported from the air cleaning device (6) to the air outlet (10) and released through the latter to the environment, the released air flow (11) being directed perpendicular to the plane of the grill plate (4).

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 relates to a method for controlled and modulated ventilation of a confined space (2) exposed to at least one contaminant, the method comprising: - arranging an extraction path (3) on which an extraction fan (30) is provided and a blowing path (4) on which a blowing fan (40) is provided; - continuously measuring at least one environmental parameter representative of the interior environment inside the confined space, comprising at least one contamination level; - communicating measurement data on the at least one environmental parameter to a monitoring / control unit (6); - monitoring and controlling, in real time, the speeds of the fans according to the measurement data, so as to control a rate of extraction of contaminated air via the extraction path and a rate of blowing of fresh air via the blowing path at least according to the contamination level.

The cabinet (10) comprises a closed enclosure (30) receiving the effects to be decontaminated, fresh air intake means (78, 80) and an air treatment unit with a motor-driven fan (50), an ozone generator and a heating element to create a flow of heated and ozonated pulsed air (APL) at a content of between 0.5 and 3 ppm. An extraction and filtering unit (62, 64, 66) extracts and filters a fraction (AEX) of the contaminated air (ACT). A bottom or floor wall (18) of the cabinet comprises diffusion vents (40) for the pulsed air (APL) supplied by a collector (76) connected to the air treatment unit. The flow of pulsed air (APL) is diffused by the diffusion vents (40) essentially in the lower part (32) of the enclosure. (Figure to be published with the abstract: Figure 8)

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 invention discloses a biosafety cabinet detector, and relates to the technical field of biosafety cabinets, the biosafety cabinet detector comprises a biosafety cabinet assembly, and the interior of the biosafety cabinet assembly is provided with an emergency protection assembly, an emergency suction assembly and a microbiological detection assembly. When the emergency air blower is used, air is conveyed into the air inlet cavity through the emergency air blower, vertical air flow is blown out downwards through the air blowing pipe, an air screen is rapidly formed, and polluted air is prevented from leaking in the first time. Meanwhile, a trigger alarm is started to remind workers to leave, and then a forward and reverse motor is triggered to drive the arc-shaped protection plate to rotate out. The emergency suction fan sucks air into the cabinet body through the air suction port, and the exhaust fan sucks the air into the second filter box body for treatment. And then the multi-stage electric push rod pushes the front window to move downwards for closing, vertical airflow screen blocking is formed, emergency air suction and closed-loop air purification are combined, finally, physical closing is ended, and the safety is effectively improved.

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.