Air cleaning unit
SUBSTANCE: air cleaning unit includes an air duct, in one of the walls of which there are slots, into which guides are inserted and provided with cassettes with filters for different contaminating gases, which are placed in them and have a possibility of being moved. Before filters, in a flow of cleaned air there installed are air composition sensors connected to a gas analyser that is connected to a switch. Cassettes are mechanically connected to mechanisms of their movement, which are connected to the switch. Flanges are installed on the air duct ends.
EFFECT: reduction of labour intensity and improvement of air cleaning quality due to a possibility of automatic installation of filters in the air duct, which are intended for air cleaning from those contaminating components that are available in the cleaned air in unallowable amounts.
The invention relates to a device for air purification from impurities and can be used in ventilation devices for domestic and industrial environments.
A device designed for use in ventilation and air conditioning residential, administrative and public buildings, is protected by patent No. 2241910 of the Russian Federation for invention dated 10.04.2003, IPC F24F 7/00. The known device contains a built-in wall duct having an outside knot wind shield and the free end of the room, with an additional outlet for connection of devices and units of air treatment. Inside the duct is placed a removable cartridge with slits and filters air-driven handle with latch-pointer. A removable cartridge is easily removed from the unit for filter cleaning and maintenance. The design of the known device allows to increase the quality of clean air. However, the known device allows you to clear the air from only one of the contaminants. For treatment of several components with the use of the known device it is necessary to stop the air cleaning and changing the filter, then skipping the cleaned air through the device again. This dramatically reduces the performance of air cleaning.
It is also known a device for cleaning the air� system tion (www.klimate/ru/clening_tion.htm), which is taken as a prototype. In the duct of the device according to the prior art consistently with several different filters and other air purifying devices that allow you to hold various pollutants and implement a comprehensive air cleaning. It certainly provides a better cleaning of the air. However, in the atmosphere of a modern major industrial centres of the composition of impurities in the air is not constant and depends significantly on the time of day, days of the week, the characteristics of the nomenclature of manufactured products and from a large number of other factors. Therefore, to maintain approximately constant the degree of purification of air in the device of the prototype need to constantly replace filters depending on changes in the composition of air pollution. This will increase the complexity of air purification. Installation device according to the prototype of the entire gamut of filters which can be necessary when changes in the composition of air pollution, will lead to unnecessary increase in the resistance of the device passed through it to the air flow, which would require increasing the power consumed by the device, and can make a quality air purification is not possible.
The technical result of the proposed device is to reduce the complexity and increase �quality air purification.
The essence of the proposed device for air purification is that it contains a duct, in which is sequentially inserted cassettes with filters designed for various pollutant gases. Unlike the prototype in front of the filters in the flow of cleaned air installed sensors in the composition of air, United with the gas analyzer, which is connected to the switch. In one of the walls of the duct cut slits into which is inserted the guide rails are placed in them with the ability to move cassettes containing filters. The guides are fixed to the walls of the duct. The cassette is mechanically coupled to the mechanisms of their movement, which are connected to the switch. At the ends of the duct flanges installed.
The design of the proposed device allows you to automatically install in the duct filters are designed for air purification from those contaminants that currently exist in the clean air in unacceptable quantities. The remaining cassettes with filters is possible, but currently missing in the clean air of contaminants from duct are removed automatically. This improves the quality of cleaning the air and reducing the resistance of the air duct by removing the extra at the moment fil�ditch increases the cleaning performance.
The invention is illustrated by drawings, where Fig.1 shows a General view of the proposed device, and Fig.2 - cross section A-A in Fig.1.
The apparatus comprises a duct 1, the ends of which can be fixed to the flanges 2 and 3 for attachment of the duct, for example, blocks of rough preliminary and subsequent fine purification of air. In one of the walls of the duct 1 slotted slits are inserted in the guides 5 are placed in movable cassettes with 4 filters. The device is provided with mechanisms for moving 7 4 cassettes, which are mechanically, for example, by means of rods 6 are connected with 4 cassettes. Before filters, placed in cassettes 4, in the flow of cleaned air sensors placed 8 the composition of the purified air, associated with the detector 10, which, in turn, is connected to the switch 9 associated with the mechanisms of movement of the cassettes 4.
The proposed device operates as follows. The flow of cleaned air supplied to the duct 1, is washed by the sensors 8, the number and designation which corresponds to the number and assignment of filters, placed in cassettes 4.
The detector 10 via communication channels (e.g., electric) transmits a signal of the presence of this pollutant and a component of the commutator 9, which compares the led�ranks of this signal with a preset reference value. If, for example, received from the detector 10, the signal on the content in the clean air of ammonia greater than a predetermined reference value, then from the switch 9 to the corresponding mechanism 7 moving the cassette 4 with a filter that cleans the air from ammonia, the command to turn on and the cassette 4 with this filter along the guide rails 5 to the inside of the duct 1. Filter purification from ammonia starts to work. If the ammonia content in the clean air will decrease below the permissible value, the signal from the detector 10 will be less than the specified reference value. In this case, the switch 9 will be served on the appropriate mechanism 7 moving the cassette 4 team on the reverse of displacement and will include this mechanism 7, which will eject the cassette 4 of the duct 1.
Thus, in the duct of the device in the process of air cleaning are only those of the cassette 4, which are filters that clean the air from pollution, the content of which exceeds the permissible value. In cases of changes in the composition of the air in the result, for example, accidental releases of hazardous substances at enterprises, increase in the concentration of exhaust gases of vehicles during peak hours, etc. of the cassette 4 with the filters you need at the moment, will be automatically be installed in a duct 1, and the rest of the magazine 4 auto�key to get out of it.
As a result, the resistance of the device to the flow of cleaned air in comparison with the prototype will decrease in the duct will be fewer 4 cassettes with filters. In addition, when changes in the composition of the purified air will dramatically reduce the time required to change tapes 4. All this will increase the productivity of the cleaning process. It will improve the quality of cleaning, since the replacement of the cassette with 4 filters will be automatically simultaneously with increasing concentration of the cleaned air pollution. Getting this contamination in purified air for periods prior to the discovery of new contaminants, disconnect the device and install the desired filter, as this can be the prototype, the proposed device is excluded. The concentration of impurities in the air, cleared the proposed device will always be within acceptable limits.
The proposed device can be manufactured and applied using means known in the art and materials. The housing 1, the flanges 2 and 3, the guides 5 and the cassette 4 can be made of known structural steels, aluminium alloys or plastic using known metal-cutting, welding and foundry equipment. As filters as in the prior art, can be applied, e.g.�measures the sorbents. So, for air purification from ammonia the same way as the prototype, you can apply the sorbent SAAF Carb MB consisting of activated carbon with the addition of contaminants, from chlorine to clean suitable sorbent SAAF Carb MC, which is based on a mixture of activated carbon with alumina. Can also be used mixtures of different sorbents. Filters, placed in cassettes 4 may be a mesh or plate thread waste from the threads, between which laid the sorbent, for example, in powder form. Thread nets or thread waste can be made of a material neutral to purify the air and polluting its components, for example, from polyurethane.
As mechanisms 7 move the cassettes 4 can be used reversible Electromechanical actuators. Thrust 6 connecting mechanisms 7 with cassettes 4 may be made rigid, for example, in the form of steel rods with eyelets for attaching them on cassettes 4 and in mechanisms 7. The switch 9 may be an electronic device that consists of a mixture of known locations of comparing the incoming signal with a preset reference value and generates a pulse to activate and reverse mechanisms 7 move 4 cassettes. Such schemes are widely used in automatic control systems of technological installations. Example �logit industrial switch series ISCOM21XXi (http://www.raisecom/su). The sensors 8 may be of a different design from among known in the art and are selected depending on the type of analyzer 10. For example, the sensors 8 can be formed as a funnel for the reception of air, United with the gas analyzer 10 of the pipeline. As the detector can be applied, for example, the universal automatic stationary gas analyzer GANK-4C NPO Pribor, Moscow, which provides control of content in the atmosphere 117 hazardous substances (http://www.gank4.ru). Thus, the proposed device achieves a technical effect, which consists in increasing the productivity of the process air purification and improving the quality of treatment, and can be manufactured and applied using known tools and materials. Therefore, the proposed device has industrial applicability.
The air purification device containing a duct, in which is sequentially inserted cassettes with filters designed for various pollutant gases, characterized in that before the filters in the flow of cleaned air installed sensors in the composition of air, United with the gas analyzer, which is connected with the switch, in one of the walls of the duct cut slits into which is inserted the guide rails are placed in them with opportunities�Yu move cassettes, containing filters, and guides fixed to the walls of the duct, cassette mechanically coupled to the mechanisms of their movement, which are connected to the switch, and to the ends of the duct flanges installed.
FIELD: process engineering.
SUBSTANCE: invention relates to air cleaning and can be used in designing, for example, kitchen air funnels. Flow-shifting air cleaner consists of contaminated air intake channel and clean air discharge channel communicated therewith. Clean air discharge channel accommodates a blower to force air along its lengthwise axis. It differs from know designs in that is used shifting channel to communicate contaminated air intake channel with clean air zone wherefrom air is forced to extra fan arranged in said shifting channel. Note here that shifting channel airflow is forced inside contaminated air intake channel to collide against impurities collection plate for them to be settled thereat. Note also that clean airflow gets repelled from said plate to get in fan zone in cleaned air channel and removed therefrom.
EFFECT: higher efficiency at sufficient capacity.
SUBSTANCE: invention refers to disinfection devices. An air disinfection device including a housing having an air intake compartment with an inlet opening and an outlet compartment with an outlet opening, between which there is an irradiation chamber separated with labyrinth partition walls-screens, in which there installed are lamps and a power supply unit electrically connected to a control and indication unit; a filter element is arranged in the air intake compartment, and a fan is installed in the outlet compartment; besides, the housing is made in the form of a thin-wall box-like body from bactericide polymer plastic with bacteriostats, which consists of two semi-housings connected along the perimetre; gas-discharge mercury lamps are fixed with a gap on bosses; longitudinal axis of the above lamps is offset relative to a connection-disconnection plane towards another semi-housing; on the side of the irradiation chamber, symmetrically located central transverse plates are attached to the base of each semi-housing and have folds on edges, which are directed towards the corresponding compartment, and on the side of each compartment, two side transverse plates are oppositely attached in one plane to the base of each semi-housing and to side walls and have folds on edges, which are directed to the irradiation chamber, the distance between which is less than width of central transverse plates, which is less than width of transverse size of the housing; when attaching the semi-housings, the central plates form labyrinth screens with partition walls.
EFFECT: invention allows improving efficiency of bactericide air disinfection using ultraviolet irradiation.
SUBSTANCE: underground street air conditioner consists of a rectangular housing closed with a cover plate with a hatch, a tray with a pit, which is separated from the roof with a vertical partition wall with an opening between lower edge of the partition wall and the bottom of the tray into a vertical air washer and a cleaning chamber; an intake grid and a plenum fan are located under the roof in the end wall of the air washer; feed and drain pumps are located inside the air washer and connected to a water supply source, sprinkling and flushing devices and a bottom of a storm drainage channel; on inner surface of the end wall of the air washer there placed is a movable vertical damper connected to a float; in the cleaning chamber there located in a staggered order are removable vertical perforated baskets filled with pumice stone granules; an exhaust opening is made in the roof and connected to an above-ground exhaust shaft equipped with an opening with a distributing grid, inside which an ioniser and an exhaust fan is placed; with that, the intake grid of the air washer is interconnected with the storm drainage channel.
EFFECT: enlarging the range of use of a street air conditioner by arranging it under the ground, and providing the possibility of using the already existing storm drainage as its structural component, which improves economic and ecological efficiency of an underground street air conditioner.
SUBSTANCE: method and device that implements it are designed for produce air suitable in sanitary respect for human breathing, comfortable both in absolute humidity and oxygen content in it. Air treatment in accordance with the proposed method is executed due to air contact with large water surface (water fog), as a result of which most mechanical, biological and chemical admixtures, contained in air, are moistened and lose static charge, coagulate (enlarge), dissolve in moisture and deposit from air onto a sorting surface. The device comprises a conditioner 8 for thermal treatment of water, humidifiers 6 for air treatment with conditioned water and deposition of dust and other admixtures from air. The device also comprises moistened absorbing surfaces 11 for collection of dust and other admixtures deposited from air, and a tray 15 with water, for moistening of absorbing surfaces with conditioned water and accumulation of contaminants in water with their further removal.
EFFECT: increased efficiency of room humidification due to more accurate maintenance of specified humidity parameters.
15 cl, 3 dwg
SUBSTANCE: purified air is supplied through the pipe 2 to the upper chamber 9 of the housing 1. At that, passing through the discharge electrode 13 the air is ionised and it charges the dust that is in the air. The charged dust particles move in the direction to the electrodes 6 having a positive potential which turn conjointly with the wheel 4. Having reached the surface of the electrodes, the particles are deposited on them. When the wheel 4 reaches the position when the upper blades are located symmetrically relative to the vertical axis, in the chamber 9 an enclosed volume is created, which is limited by the blade-electrodes and the upper part of the housing 1. In this volume the air portion is finally purified and the noise accompanying the purified air is reduced. Simultaneously the third blade-electrode holds the lower vertical position in the chamber 10 where it is freed from contaminants by feeding to the electrode and the rollers 7 of the similar high potential.
EFFECT: simplification of the design that implements the method and increase of effectiveness of the degree of air purification, reduction of the noise level.
8 cl, 1 dwg
SUBSTANCE: plant comprises a device to form a flow of a working medium in a channel for a flow, a treatment device that exposes the medium to treatment, and a supply device for supply of the medium into the treatment device. At the same time the treatment device and the supply device may be put in action with the help of the working fluid medium flow.
EFFECT: higher efficiency of life sustenance environment maintenance in a shelter chamber.
37 cl, 12 dwg
SUBSTANCE: invention refers to agriculture, particularly methods for creating an optimal microclimate on farms. The method involves external and internal air supply through a V-air duct, maintaining an external surface of the air duct below the dew point temperature of internal air, generating condensate thereon to be collected in sewage pipes via a V-shield attached above the air duct. The condensate shield is made of a crescent metal conductor with saw-toothed projections on its side edges facing the V-air duct; it is connected to the DC power supply.
EFFECT: method enables accelerating the water condensation process from internal air and contaminant discharge.
SUBSTANCE: injector includes housing with inlet confuser, outlet and constant cross-section channel, discharge electrode, collecting electrode, which are connected to high-voltage DC source and installed in parallel planes perpendicular to longitudinal axis of constant cross-section channel. In addition, housing outlet is made in the form of outlet diffuser.
EFFECT: increasing the efficiency.
SUBSTANCE: electrostatic injector comprises housing with inlet confuser and constant cross-section channel, discharge electrode, collecting electrode, which are connected to high-voltage DC supply and installed in parallel planes perpendicular to longitudinal axis of constant cross-section channel; injector outlet is made in the form of diffuser, the small cross section of which is adjacent to constant cross-section channel, and in diffuser outlet section there installed is grid with regular non-uniformity, to the inner surface of which a catalyst is applied, and guide plates are installed in inner cavity of diffuser, which are uniformly distributed between diffuser walls; at that, surface of the above plates is rough and a catalyst is applied to them.
EFFECT: invention allows controlling ozone concentration at electrostatic injector outlet; and at the same time, high efficiency coefficient and relatively low cost of injector is provided due to its easy manufacture.
FIELD: machine building.
SUBSTANCE: cleaning is carried out in two in-series located working zones 2 and 3. At that, in the first zone 2 which is air humidification zone, as filtering means there used is directed flow 16 of water fraction interacting with air flow entering system 1, and in the second zone 3 the air cleaning is carried out by its being dried. Flow 16 of ionised cold water vapour which is obtained on the basis of cavitation effect in volume of water enclosed in accumulation tank 9 is used as water fraction. Cavitation effect is implemented by means of ultrasound. Direction of the above water vapour flow 16 is arranged so that it can cross inlet air flow 8 by being mixed with it. At that, direction of air flow 8 in both cleaning zones is changed for many times relative to straight one. Developed condensation surfaces 6 and 7 of air paths 4 and 5 respectively are used as adsorbing elements. Condensate is removed from cleaning system 1 to drain tank 18.
EFFECT: air humidity level in the second air drying zone 3 is regulated with its required cleaning degree.
9 cl, 1 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to filtration, namely, to gas filter intended for cleaning hydrocarbon gases to be used chemical, petrochemical and automotive industries. Proposed filter comprises case 1 with inner heat-insulation wall, inlet branch pipe 21 and discharge branch pipe 22, and divided into three consecutive zones by baffles 2, 3 First zone is that of heating waste gases 26 provided with thermal element 12 with shield 11 secured on baffle 2. Hollow catalytic reactivating filter 27 arranged in second zone has its first end secured on baffle 2 and second end secured on additional hub 14. Third zone accommodates filtration elements 5, 6-9 of catalytic reactivating filter with their ends tightly secured in baffle 3 and case face wall, respectively. Baffles 2, 3 are provided with waste gas passage openings.
EFFECT: simplified design, lower costs and higher efficiency.
5 cl, 1 dwg
FIELD: technological processes.
SUBSTANCE: absorbing filter is intended for air treatment plants removing harmful and toxic admixtures and aerosols from air and relates to group protection equipment. Absorbing filter includes cylindrical case with anti-aerosol and sorption treatment stages placed in sequence along air course, and inlet and outlet holes. First stage along air course is anti-aerosol one; it is made of cellulose and mineral fiber based materials, while the second, sorption stage is made of double-layer material where the first layer along air course consists of active carbon modified by copper and/or nickel salts and active carbon modified by copper, chrome and silver salts, at the weight ratio of 1:(0.75-1.5). The second layer is made of cellulose fiber material containing 30-50 wt % of active carbon and/or active carbon modified by copper and chrome salts.
EFFECT: improved air treatment quality, increased life time of absorbing filter and reliability of acid gas (such as chlorine or hydrogen sulfide) and ammonium absorption.
3 dwg, 1 ex
FIELD: mining industry, particularly to catch dust generated by machines and/or rigs in mines and tunnels.
SUBSTANCE: dust catcher comprises body with precipitation member formed as demister comprising moistening nozzles and drip catching means. Fan with drive is arranged near inlet/outlet side thereof. Moistening nozzles located in front of the demister in air flow direction are made as spaced multijet nozzles having separate sprayers, which form common sprayed curtain. The fan is installed in cleaned gas flow downstream the demister and drip catching means. The fan is arranged in case connected to dust catcher body. Demister is installed in contaminated air flow at inlet side and is arranged in inclined position. Upper edge thereof projects relatively lower edge. Air deflectors are arranged between the demister and drip catching means. Bottom sheet is inclined towards drip catching means. Multijet nozzles project towards contaminated air flow and are connected to load-bearing frame obliquely installed in accordance with demister inclination angle. Dust catcher is provided with separate vessels for additives, which pass through metering device into water-pipe. Mixer connected to water-pipe or built in water-pipe is installed downstream the metering device. Spraying device is arranged in front of moistening nozzles and demister with drip catching means. Spraying device comprises spraying heads, which create water mist and is connected with water source or with water-pipe and metering device with mixer. Dust-contaminated air flow is mixed with water mist and then the obtained sludge is gathered. Moist air is dried by water droplet separation and then the dried air is introduced in cleaned gas flow. Gases generated as a result of explosion are laden with water mist preliminarily mixed with additives, which create ecologically safe compositions with nitrose or similar gases formed during explosion.
EFFECT: increased operational efficiency and reduced dust catcher size.
20 cl, 8 dwg
SUBSTANCE: invention relates to agriculture and can be used for creation of optimal microclimate in livestock buildings. The method comprises feeding the external and internal air through the air duct of triangular-shaped cross-section, maintaining the outer surface of the air duct below the dew point temperature of the indoor air, the formation of condensate on it and its accumulation in the waste-water disposal system through a V-shaped deflector fixed under the air duct. The air duct of triangular-shaped cross-section is blown with radioactive gas radon entering the air duct from the earth interior through the pipes connected to the trap for the radioactive gas radon, located under the floor of the livestock building.
EFFECT: method enables to accelerate the process of dehydration and purification of air due to the appearance of additional centers of moisture condensation.
FIELD: process engineering.
SUBSTANCE: invention relates to agriculture and can be used for air conditioning in stock buildings. Proposed method comprises feeding internal and external air via triangular cross-section air duct, maintaining duct outer part temperature below internal air dew point, creating condensate thereon and its discharge in sewerage via V-like apron secured above air duct. Said triangular cross-section air duct and air collection apron are made from different conductors or from conductors and semiconductors to solder their ends together so that thermocouple is made. Note here that millivoltmeter is connected to that thermocouple to measure thermal emf. The latter registered via stable temperature increase at thermocouple opposite ends, constant electric current is passed through said thermocouple from current source in direction that allows heating of cooled junction and cooling of heated junction.
EFFECT: efficient moisture condensation at triangular air duct, easier temperature measurement at its ends.
SUBSTANCE: invention relates to devices of air purification in closed premises, preferably, multi-storey or apartment buildings. Device for air disinfection in buildings contains multitude of photo-catalytic reactors for air disinfection, pulse lamp, as such xenon lamp is applied, power source, capacitive storage element, former of high-voltage impulses, microprocessor control and direction block, ventilator, display and keyboard, interface card, general bus bar, which connects photo-catalytic reactors and microprocessor blocks of direction and control. Photo-catalytic reactor contains titanium dioxide, and as work surface - polished aluminium.
EFFECT: increase of system functional possibilities, improvement of announcement about emergency situations, sending sound and light signals about faults in system components by system.
21 cl, 2 dwg, 2 ex
SUBSTANCE: invention relates to devices of air purification in closed premises, preferably, multi-storey or apartment buildings. Device for air disinfection in buildings contains multitude of photo-catalytic reactors for air disinfection, placed in ventilation boxes, at least, one pulse lamp, power source, capacitive storage element, former of high-voltage pulses, microprocessor control unit, unit of ventilator control, sensors, sound and light announcers, bus bar, interface card, remote control, which contains microprocessor, display and keyboard. Sensors are taken from group, which consists of: air rate sensor, sensor which fixes light intensity, temperature sensor and their combinations.
EFFECT: increase of system functional possibilities, improvement of announcement about emergency situations.
13 cl, 2 dwg, 2 ex