Mobile street air conditioner

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering, namely, to air conditioning, and in particular, to methods and devices for street air treatment from hazardous components of spent gases of motor transport. The mobile street air conditioner comprises a rectangular body closed with a roof, a tray equipped with supply and drain nozzles and separated into a sprinkling chamber and a treatment chamber, intake and distributing grids, plenum and exhaust fans, an ioniser, sprinkling and washing devices, in the treatment chamber along the air motion flow in staggered order there are detachable perforated baskets laid onto support angles, which are filled by pumice granules, made of metallurgical slags, besides, the external wall of the sprinkling chamber in the lower part of the side wall of the body is equipped with an intake nozzle closed with a grid, inside of which there is a plenum fan installed, the outer wall of the treatment chamber in the lower part of the side wall of the body is equipped by an exhaust nozzle closed with a grid, inside which there is an aero ioniser and an exhaust fan, a supply pipeline, connected with a supply nozzle, is equipped with supply and washing valves and is connected at the bottom to the sprinkling and washing devices at the opposite ends, and the tray of the body and the supply pump are installed onto a mobile platform.

EFFECT: increased economic and environmental efficiency of street air treatment.

4 dwg

 

The present invention relates to power engineering, namely to the air conditioning and, in particular, to devices for cleaning outside air from harmful components of exhaust gases of motor transport.

A device for rehabilitation of the outside air, consisting of a rectangular enclosure with intake and distributive lattices, closed roof, pallet, coupled with a nourishing pipeline, pump circulation circuit, a drain pipe, and divided by the washer, in which is placed a supply fan and an irrigation device, and the cleaning chamber, in which in the course of air movement, placed a removable containers with vertical perforated tapes, covered with a layer of slaked lime (Ca(OH)2) with vertical air channels between them, a separator plate, ionizer, exhaust fan [RF Patent №2301945, LNC. F24F 3/16, 2007].

The main disadvantages of the known devices are small absorption capacity of vertical perforated plates, covered with a layer of slaked lime, resulting in the need for frequent replacement of their regenerated on the impossibility to perform the regeneration process of perforated plates in the air conditioning, as well as significant ash lime � the surface of the perforated plate flow humidified filtered air, that reduces the economic and environmental efficiency of street-conditioning.

Closest to the proposed invention is the outdoor air conditioning, consisting of a rectangular housing that is sealed roof, tray, divided into a washer and the cleaning chamber, wherein the washer is provided with the intake grille, and inside it is placed a supply fan, an irrigation device, consisting of a riser with a nozzle in the cleaning chamber during the movement of the air in a checkerboard pattern are located at base corners removable perforated basket, filled with granules of pumice made from metallurgical slags module basicity M>1 in diameter from 20 to 40 mm, washer, consisting of a perforated riser with bottom nozzles extending through the wall of the cleaning chamber, the separation plate, ionizer, exhaust fan and distributive lattice, and irrigation and flushing devices are connected by a pipeline with a nutrient pump [RF Patent №2425293, M CL F24F 3/16, 2011].

The main disadvantages of street-conditioning are the complexity of its installation and operation, due to the fact that the feed pump is installed under the ground, the inability to install it on a mobile platform and offline and expeditiously used in the most polluted areas�quay street, what limits the range of its use, the complexity of irrigation-flushing devices and the absence of control valves, which does not allow to automate the processes of irrigation and leaching, and thereby reduces the economic and environmental efficiency of street cleaning the air of harmful components of exhaust gases of motor transport and dust.

The technical result for the solution of which the present invention is directed, is to expand the range of use of street-conditioning by installing it and feed pump transportable platforms and simplifying the design of irrigation-flushing devices, which increases the economic and environmental efficiency of mobile street-conditioning.

The technical result is achieved in that outdoor air contains rectangular case, closed the roof, tray, supplied with nutrients and drain fittings and divided by the washer and the cleaning chamber, intake and distribution grid, supply and exhaust fans, ionizer, an irrigation device, consisting of a riser with a nozzle which is connected via the nutrient fitting with a nutrient pump, the flushing device consisting of a perforated riser with bottom nozzles passing through the partition into the camera eyes�tki, in which in the course of air movement in a staggered stacked on the supporting angles removable perforated basket, filled with granules of pumice made from metallurgical slags module basicity M>1 in diameter from 20 to 40 mm, closed side of the cleaning chamber vertical door and the outer wall of the chamber irrigation in the lower part of the side wall of the casing provided with a suction nozzle, a closed grille, which is placed inside the supply fan, the outer wall of the cleaning chamber in the lower part of the side wall of the housing is provided with exhaust pipe, closed by a grating, which is placed inside aeroionizator and exhaust fan, nutritious tubing, coupled with a nourishing fitting, supplied with nutrients and flushing valves and attached to the underside of the irrigation and flushing devices with opposite ends, and the pallet body and the feed pump is mounted on mobile platform.

The basis for the proposed mobile street-conditioning based on the chemical composition of the outside air is contaminated with harmful components of exhaust gases of motor transport (carbon dioxide, nitrogen oxides, sulfur oxides, soot, ozone, etc.) [L. Goldovsky. Environmental chemistry. - M.: Mir, 2005, pp. 86-90, p. 155], the high solubility of carbon dioxide in comparison with other commercial�onetime air in water [chemist's Handbook, T. III. M. - L.: Chemistry, 1965, 316] and high reaction rate of oxidation of NO to NO2and SO2in SO3that dissolve well in water to form HNO3and H2SO4in the presence of ozone [Nenitzescu K. General chemistry. - M.: Higher. School, 1958, p. 275; Kutepov, A. M. and others General chemical technology. - M.: Higher. School, 1985, p. 348], the high value of the modulus of basicity, which gives the metallurgical pellets of pumice basic properties [Building materials. Guide. Edited by Boldyreva, A. S. and others - M.: Stroyed., 1989, p. 423; Domotel A. K. Construction materials. - M.: Higher. school, 1989, p. 163], allowing to adsorb on the surface of a substance having acid properties, which include harmful components of exhaust gases of motor transport (NOx, SOx, CO).

The invention is illustrated by drawings, where Fig.1 is a perspective view of a mobile street-conditioning (ICB), Fig.2, 3 - transverse sections, Fig.4 is a longitudinal sectional view.

TORMENT is composed of a rectangular housing 1, the closed roof 2, tray 3, provided with a nutritious and drainage fittings 4, 5, respectively, separated from the tray 3 by a vertical partition 6 with window 7 between the upper edge of the partition 6 and the roof 2 on the washer 8 and the cleaning chamber 9. The outer wall of the chamber irrigation 8 in the lower part of the side wall of the housing 1 is provided with the intake pipe 1, closed bars 11, which is placed inside the supply fan 12, the outer wall of the cleaning chamber 9 in the lower part of the side wall of the housing 1 is provided with the exhaust gas outlet 13, closed by a grating 14, which is placed inside aeroionizator 15 and the exhaust fan 16 (room supply fan 12, an exhaust fan 16 and the ionizer 15 inside the pipes 10 and 13 protects against splashing water spray from the wash and spray equipment, which increases the reliability and durability of their work). Inside the housing 1 are connected with a nutrient fitting 4 nutritional conduit 17 with nutrients and flushing valves 18 and 19 attached to it irrigation device that represents the irrigation riser 20 with 21 branches, provided with a nozzle 22 attached to it same with the opposite side of the flushing device, which is a wash tower with 23 branches 24, connected with perforated bottom nozzles 25, admitted through the vertical partition 6 to the cleaning chamber 9. In the cleaning chamber 9 in the direction of the air flow from the bottom-up, in a checkerboard pattern are removable perforated basket 26 is filled with granules of pumice 27 made of metallurgical slag with the module basicity M>1 in diameter from 20 to 40 mm, closed side of the cleaning chamber vertical door 28, and nutritional fitting 4 is connected by tubing with a nutrient pump 29, and the tray 3 of the housing 1 and the supply pump 29 is mounted on mobile platform 30.

Cleaning outside air from harmful components of exhaust gases of motor transport and dust is as follows. Pre-MUK transported on the vehicle chassis or on a trailer (mobile platform 30), set on the border of the road and pedestrian parts of the streets, the most overloaded with traffic, so that intake pipe was facing the roadway, and the exhaust pipe 12 in the direction of the pedestrian, and connect it to all communications (electricity, water, sewer). This ANGUISH can be removed from the mobile platform 30 and to function as installed on special supports (Fig.1-4 not shown) or to remain on the platform 30. MUK can be almost completely Autonomous, namely the power supply fan and the pump can be supplied at the expense of the electric automobile, and the water to be at the expense of the provision of water tankers (Fig.1-4 not shown). In this case, it should only be ensured by the connection to the sewer (via storm drains LK or manhole (Fig.1-4 not shown)).

Ul�CNY air through the grate 11 and the intake pipe 10 is sucked by the supply fan 12 to the washer 8, where the rate drops sharply, the air moves from the bottom - up, contacts in cross-current to the particles of the water flowing from nozzles 22 that are installed on the branches 21 of the irrigation riser 20 to the height of the camera 8 irrigation, humidified and partially cooled. Water, the amount of which is determined by amount of absorbed harmful components from outside air and its moisture content, is fed into the irrigation riser 20 supply pump 29 through the supply nozzle 4, the feed conduit 17 with an open filling valve 18 and a closed flushing valve 19 (opening and closing of valves 18 and 19 is carried out automatically). In parallel to the above-described processes in the washer 8 is capture water particles of dust and soot, interfacial contact of the spray water with air, resulting in absorption of this water to carbon dioxide (CO2), the chemical interaction of nitrogen oxides (NOx), sulfur oxides (SOx), ozone (O3), oxygen (O2), water (H2O) between the gas and liquid phases, chemisorption of the formed nitrogen dioxide (NO2) and sulfur dioxide (SO3) with water to form nitric (HNO3) and sulfuric (N2SO4) acids. The resulting acidified water saturated with carbon dioxide from mechanical impurities, with�gurgling in the sump 3 and together with the slurry through the drain fitting 5 is continuously excreted into the sewer. Purified of carbon dioxide and some oxides of nitrogen and sulfur, dust and soot, hydrated and partially cooled outdoor air with particles acidified water from the chamber 8 through irrigation window 7 is supplied to the cleaning chamber 9 and passes downward through the perforated basket 26 is filled with granules of pumice 27 ø 20 to 40 mm, made of basic slag (particle diameter 27 assigned condition for minimum aerodynamic drag of the cleaning chamber 9 and the range of sizes of pellets metallurgical pumice). Basic metallurgical pumice is a highly porous material with a mechanically stable structure (resistance to compression of up to 2.7 MPa), consisting of calcium oxide, silicon oxide, aluminum oxide and partially of magnesium oxide (CaO, SiO2Al2O3, MnO) with the module basicity M>1. The high value of the modulus gives the basicity pellets 27 basic properties, allowing to adsorb on the surface of a substance having acid properties, which include harmful impurities in the cooling flue gases (NOx, SOx, CO, CO2). In addition, based on their composition, metallurgical slag resistant to the corrosive effect of acidic components of the exhaust gas, are widely available and cheap. Adsorbed from street air�and oxides of nitrogen and sulfur in the pores of the granules 27 have high reactivity, due to their interaction with the surface of the adsorbent granules of slag pumice [Nenitzescu K. General chemistry. - M.: Mir, 1968, p. 298], therefore, are oxidized with oxygen at a rate greater than in the gas phase with the formation of easily soluble in water NO2and SO3that, in turn, interact with particles acidified water remaining in the pores of the granules 27, with formation of corresponding acids NGO3and H2SO4. In addition, on the surface and in the pores of the pellets 27 are deposited fine particles (dust, soot, etc.), resulting in purified, cooled and dehumidified air when passing through the ionizer 15 is enriched with light air ions and an exhaust fan 16 through the pipe 13 and the grill 14 is fed into a pedestrian street.

In the fall of activity of the granules of pumice 27 in perforated baskets 26 are subjected to regeneration, which is carried out in the hours of minimum traffic flow (e.g. during night hours) in the conditioning. The regeneration process consists of washing the pellets 27 from particles of dust, soot and acidic water containing entrapped oxides of carbon, sulfur and nitrogen. Rinsing is carried out by feed water to the cleaning chamber 9 through the flushing riser 23, the branch 24 connected to the perforated bottom nozzles 25, by automatically opening promisec�CSOs valve 19 and closing an irrigation valve 18. The amount of wash water and the flushing time is set empirically. Complete replacement of the granules of pumice 27 is carried out once per season.

As a source of water supplied to the washer 8 to the absorption of carbon dioxide in large quantities, you can use the water stations pumping groundwater underground (under condition of absence in it of harmful impurities) or water provided by tankers and discharged into the sewer through the drain fitting 5 acidified water due to a significant content of carbon dioxide in it will contribute to the processes of photosynthesis [Komov, V. P., etc. Biochemistry. - Moscow: Drofa, 2004, p. 210] in the fields of irrigation of municipal sewage treatment facilities.

Height of outdoor air is determined by the zone of maximum contamination of the outside air and the permissible dimensions of cargo transported by road, the elevation of the intake and exhaust pipes located at the height of the working area of a standing person with regard to the expansion angle of the jet of air emanating from the distribution grid 14. The cross-sectional area, the number and size of the perforated basket 26, porosity, number of granules of pumice 27, power, and performance fan 12 and 16, the ionizer 15, the pump 29, the volume of the pallet 3, the absorption capacity of the cleaning chamber 9, the water consumption for irrigation in the camera irrigated�I 8 and recycling are determined by the performance in the air, its contamination and the required degree of cleaning it. In this street the conditioning preferably made in the form of standard sections (Fig.1-4 shows 1 section), each of which can work separately, allowing you to increase or decrease the performance of the entire system depending on the environmental situation in the street.

Thus, the proposed street mobile air conditioning allows without the use of expensive and hazardous chemicals to clear the street the air of harmful components of exhaust gases of motor transport, and partly to cool it, to automate the processes of irrigation and leaching and to quickly clean the air in the areas of maximum contamination, which increases its economic and environmental effectiveness.

Mobile street-conditioner, comprising a rectangular casing, closed the roof, tray, supplied with nutrients and drain fittings and divided by the washer and the cleaning chamber, intake and distribution grid, supply and exhaust fans, ionizer, an irrigation device, consisting of a riser with a nozzle which is connected via the nutrient fitting with a nutrient pump, the flushing device consisting of a perforated riser with bottom nozzles extending through the wall of the cleaning chamber, in which �about course of air flow in a staggered stacked removable perforated basket filled with granules of pumice made from metallurgical slags module basicity M>1 in diameter from 20 to 40 mm, closed side of the cleaning chamber vertical door, characterized in that the outer wall of the chamber irrigation in the lower part of the side wall of the casing provided with a suction nozzle, a closed grille, which is placed inside the supply fan, the outer wall of the cleaning chamber in the lower part of the side wall of the housing is provided with exhaust pipe, closed by a grating, which is placed inside aeroionizator and exhaust fan, nutritious pipeline, coupled with a nourishing fitting, supplied with nutrients and flushing valves and attached to the underside of the irrigation and flushing devices with opposite ends, and the pallet body and the feed pump is mounted on mobile platform.



 

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