Underground street air conditioner

FIELD: ventilation.

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.

 

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

Known street air conditioning, consisting of a rectangular body with intake and distributive lattices, closed roof, tray, coupled with a nourishing pipeline, pump, circulation loop, drainage piping and divided into the spray chamber, in which there is an intake fan and an irrigation device, and the cleaning chamber, in which the direction of air placed removable containers with vertical perforated tapes, coated with a layer of slaked lime (CA(Oh)2) with vertical air channels between the separation plate ionizer, exhaust fan [RF Patent №2301945, Ál. F24F 3/16, 2007].

The disadvantages of the known devices are small adsorption capacity vertical perforated plates, covered with a layer of slaked lime and due to this fact need frequent replacing them on regenerated, the impossibility of carrying out the process of regeneration of perforated plates directly in the conditioning, as well as significant ash lime from the surface of the perforated place is in flow humidified purified air, that reduces the economic and environmental effectiveness of street-conditioning.

Closer of the present invention is the outdoor air conditioning, consisting of a rectangular body, a closed roof, tray, divided into the spray chamber and the cleaning chamber, and. spray chamber equipped with an intake grille, placed inside an intake fan, an irrigation device, the cleaning chamber during movement of air in a checkerboard pattern are arranged on the supporting parts of the removable perforated basket, filled with granules of pumice produced from metallurgical slag module basicity M>1 diameter from 20 to 40 mm, washer, 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, Ál. F24F 3/16, 2011].

The main disadvantages of known street of conditioning are above ground layout, which in most cases does not allow its installation on the most polluted areas of the streets because of their lack of free space, which dramatically limits the range of its use and thus reduces the economic and environmental efficiency of cleaning outside air from the harmful components of exhaust gases of vehicles the safe transport and dust.

The technical result for the solution of which the present invention is directed, is to expand the range of use of outdoor air by assembling it under the ground and use as a structural element of the existing storm sewer system, which increases the economic and ecological efficiency of underground street-conditioning.

The technical result is achieved by the fact that the underground street conditioner consists of placed under the ground, a rectangular body, a closed roof hatch, pallet sump separated from the roof by a vertical wall with a window between the lower edge of the partition and the bottom of the pallet to a vertical spray chamber and a horizontal cleaning chamber, in the left end wall of the chamber irrigation under the roof are the intake grille and the supply fan inside the chamber irrigation is feeding pump directly connected to the feed pipe to the water source, a circulation pipe from the upper area of the pit, discharge from the irrigation device of the washing device, at the bottom of the pit is placed submersible the pump is directly connected to the drainage pipe from the bottom of the channel, storm sewer system, and on the inner surface of the left end wall of the camera irrigation is installed vertical guide grooves, in which are placed side edges of the vertical rolling gate connected to its lower edge, a vertical rod with a float in the cleaning chamber during movement of air in a checkerboard pattern are vertical removable perforated basket, filled with granules of pumice produced from metallurgical slag module basicity M>1 diameter from 20 to 40 mm, and against each of the perforated basket is placed flush device, over the past while moving air basket in the rooftop exhaust hole connected to the exhaust shaft, which is placed inside the ionizer, exhaust fan and which is supplied at the level of human growth window with distributive lattice, facing in the direction of pedestrian movement, and intake grate camera irrigation communicates with the channel stormwater arranged at the side edge of the roadway, which, in turn, communicates with the atmosphere roadway through its grille and rectangular case, the roof, the pallet is made with a bias towards the pit, a pit, a vertical partition wall made of reinforced concrete.

The basis of the proposed street-conditioning based on the chemical composition of outdoor air contaminated with harmful components of exhaust gases of motor transport, the mouth (carbon dioxide, nitrogen oxides, sulfur oxides, soot, ozone and so on), whose concentration is highest in the atmospheric surface layer [L. F. Goldovsky. Environmental chemistry. - M.: Mir, 2005, pp.86-90, s], the high solubility of carbon dioxide in comparison with the rest of the air in the water [chemist's Handbook, vol. - M. - L.: Chemistry, 1965, 316], the high rate of oxidation of NO to NO2and SO2in SO3that are easily dissolved in water with the formation of HNO3and H2SO4in the presence of ozone [Nenitzescu K. General chemistry. - M.: Higher. School, 1958, s; Kutepov A.M. and other General chemical technology. - M.: Higher. School, 1985, C], a high value of the modulus of basicity, which gives the steel granules of pumice basic properties [Building materials.. Handbook. Edited by Boldyreva A.S. and others - M.: Stroyed.,1989, s; Damacai A.K. Building materials. - M.: Higher. school, 1989, pp.163], allowing to adsorb on their surface compounds having acidic properties, which include harmful components of exhaust gases of motor transport (NOx, SOx, CO).

The invention is illustrated by drawings, where figure 1 and 2 shows a General view of the underground street-conditioning and its cross-section, figure 3-7 - units of the coupling housing 1 with stormwater LK.

Underground street conditioner consists of placed under the earth shall SEE, rectangular casing 1, closed roof 2 with Luke 3, tray 4, pit 5, separated from the roof 2 vertical partition 6 with window 7 between the lower edge of the partition and the bottom of the pallet 4 on the vertical spray chamber 8 and a horizontal cleaning chamber 9, and a rectangular housing 1, roof 2, the pallet 4, made with a bias towards the pit 5, pit 5, the vertical wall 6 made of reinforced concrete. In the left end wall of the chamber irrigation 8 under the roof 2 are intake grille 10 and the blower fan 11, inside the chamber irrigation is feeding pump 12 connected to a charging pipe 13 with a source of water supply (figure 1-7 not shown), a circulating pipeline 14 with the upper zone of the pit 5, the discharge pipes 15 and 16 with the irrigation device 17 and located in the cleaning chamber 9, the flushing device 18, At the bottom of the pit 5 is placed submersible pump 19 is connected by a pipe 20 with the bottom of the channel stormwater Luke, and on the inner surface of the left end wall camera irrigation 8 arranged vertical guide grooves 21, in which are placed side edges of the vertical rolling gate 22 connected to its lower edge, a vertical rod 23 with the float 24. In the cleaning chamber 9 in the direction of movement of air in a checkerboard pattern are, us is set out on the feet (figure 1-7 not shown) vertical removable perforated basket 25, filled with granules of pumice 26, made of steel slag module basicity M>1 diameter from 20 to 40 mm, and against each basket 25 posted by flushing device 18, the latter in the direction of the air cart 25 in the roof 2 is arranged in the exhaust hole 27 that is connected to the exhaust shaft 28, which is placed inside the ionizer 29, exhaust fan 30 and which is provided at the level of human growth window 31 with distributive lattice 32 facing the pedestrian movement, and the intake grille 10 camera irrigation 8 communicates with the channel stormwater LK, arranged at the side edges of the roadway PU, which, in turn, reported to the atmosphere roadway through its lattice RK.

Underground street mount conditioning underground pedestrian part of the street, the busiest transport, so that the end of the camera irrigation 8 adjacent to the side wall of the channel stormwater LK on the site, closed bars RK, on the border of the road and the pedestrian part of the street, intake grille 10 were in the top part of the right side of the storm channel LK and was facing the roadway and distribution grid 32 facing in the direction of the pedestrian, the roof 2, which represents a removable concrete covered is e, was on the level surface of the sidewalk, Luke 3 was in the neutral zone, then connect the underground street air conditioning to all communications.

Cleaning the outside air from the harmful components of exhaust gases of motor transport and dust in underground street the conditioning is carried out as follows. The outside air is sucked from the surface layer of the atmosphere, which is the most contaminated, through the lattice RK channel stormwater LK and intake grills supply 10 fan 11 in the spray chamber 8, where the speed drops rapidly moves down the contacts in the cross-current with water particles coming from the injectors (figure 1-7 not shown) irrigation device 17, the entire height of the camera irrigation 10, hydrated and partially cooled. At the same time, in parallel to the above described processes, in the spray chamber 8 is trapping water particles of dust and soot, the interfacial contact of the sprayed water with air, resulting in the absorption of this water, carbon dioxide, chemical interaction of nitrogen oxides, sulfur oxides, ozone, oxygen, water between the gas and liquid phases, chemisorption formed nitrogen dioxide (NO2) and sulfur dioxide (SO3water (H2O) with the formation of nitric (HNO3) and sulfuric (H2SO4) acids Formed acidified water, saturated with carbon dioxide from mechanical impurities, flows into the sump 5, is mixed there with the previous acidic water, where part of this mix equal quantity of water supplied for irrigation, together with the sludge through the drain pipe 20 submersible pump 19 is supplied to the channel, storm sewer Luke, and the other part of the upper layer of water in the pit 5 enters the circulation pipe 14 connected to the feed pipe 13, is mixed with the feed water, the amount of which is determined by the number of absorbed carbon dioxide from the outside air, after which the mixture of fresh and acidified water pump 12 through the discharge pipe 15 is routed back into the irrigation device 17 camera irrigation 8. Purified from carbon dioxide and some nitrogen and sulphur oxides, dust and soot, hydrated and partially cooled outdoor air with particles acidified water from the chamber 8 through irrigation window 7 enters the cleaning chamber 9 passes in a horizontal direction through the perforated basket 25, filled with granules of pumice 26 made of the main metallurgical slag. Adsorbed from the outdoor air molecules of nitrogen and sulphur oxides in the pores of the granules 26 have high reactivity, due to their interaction with the surface of the adsorbent Gras is St slag pumice 26 [Nenitzescu K. General chemistry - M.: Mir, 1968, s], therefore, are oxidized with oxygen at a rate greater than that in the gas phase with the formation of readily soluble in water NO2and SO3that, in turn, interact with particles acidified water remaining in the pores of the pellets 22, with the formation of the corresponding acid HNO3and H2SO4. In addition, on the surface and in the pores of the granules 26 are deposited fine particles (dust, soot, etc.), then cleaned and dried air is additionally exempt from carry out water droplets due to their deposition under the action of gravity in a vertical hole 28, when passing through the ionizer 29 enriched light air ions and an exhaust fan 30 through a distribution grid 32 of the window 31 is served in the pedestrian zone of the street.

At the drop of activity of the granules of pumice 26 in perforated baskets 25 they are subjected to regeneration, which is carried out during the hours of minimum traffic flow (for example, at night) in the very air. The regeneration process consists of washing the granules 26 from dust particles, soot and acid water containing entrapped oxides of carbon, sulfur and nitrogen. Washing is carried out by feeding water into the cleaning chamber 9 through the discharge pipe 16 and washer 18, and contaminated wash water by gravity down the inclined bottoms the qu of the pallet 4 in the sump 5, where the drainage pump 19 is removed in the channel stormwater LK.

The amount of washing water and the washing time set empirically. Complete replacement of the granules of pumice 26 conducted one time per season. Inspection and repair of major equipment are carried out through the sunroof 3.

As the source of the water supplied to the spray chamber 8 for the absorption of carbon dioxide in large quantities, you can use the water stations pumping of groundwater is underground (provided there is no harmful impurities), and discharged into the storm sewer system LK acidified water,1 in connection with a high content of carbon dioxide in it will contribute to the processes of photosynthesis [9, com VP, etc. Biochemistry. - M.: bustard, 2004, s] in the fields of irrigation of municipal wastewater treatment facilities.

Dimensions and screening area gratings RK stormwater LK and intake grille 10 underground street conditioning is determined by its specified performance and outdoor air pollution. The cross-sectional area, the number and volume of perforated baskets 25, porosity, size, and number of granules of pumice 26, the capacity and performance of the fans 11 and 30, ionizer 29, pumps 12 and 19, the volume of pit 5, the adsorption capacity of the camera 9 cleaning, water consumption for irrigation in the spray chamber 8 and recycling are determined by the manufacturer of the spine through the air, its pollution and the required degree of purification. However, underground street air conditioning is preferably made in the form of typical sections with the case of concrete structures, each of which can work separately, which allows you to increase or decrease the performance of the installation depending on the environmental situation in the street.

Thus, the present invention allows the placement of street air conditioning under the ground, without cluttering of street space by unauthorized constructions and to use the existing storm sewer system to remove acidified water, which gives the possibility to exclude the construction of additional sewer systems and increases the economic and ecological efficiency of underground street-conditioning.

Underground street conditioner, comprising a rectangular casing, a closed roof, tray, divided into the spray chamber and the cleaning chamber, in which the intake and distribution grids, supply and exhaust fans, irrigation and flushing device, ionizer, feed pump, installed in the direction of travel of the air in the cleaning chamber in staggered removable perforated basket, filled with granules of pumice produced from metallurgical slag module basicity M>1 diameter from 0 to 40 mm, characterized in that the housing with tray placed under the ground, the roof is equipped with a sunroof, the pallet is provided with a sump and with a turn in his direction, the cleaning chamber is made horizontal, rectangular case, roof, sump, sump, vertical wall made of reinforced concrete, fence lattice camera irrigation communicates with the channel, storm sewer, which, in turn, communicates with the atmosphere roadway through his lattice, feed pump is located inside the chamber irrigation, at the bottom of the pit is placed submersible drainage pump directly connected to the drainage pipe from the bottom of the channel, storm sewer, on the inner surface of the end the walls of the chamber irrigation arranged vertical guide grooves in which are placed side edges of the vertical rolling gate connected to its lower edge, a vertical rod with a float in the chamber cleaning removable perforated basket mounted vertically over the past while moving air basket in the rooftop exhaust hole, coupled with elevated exhaust trunk with the distribution grid, which is placed inside the ionizer and exhaust fan.



 

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