SU1573311A1 - Conditioner for evaporative cooling of air - Google Patents

Abstract

The invention relates to an air-conditioning technique and makes it possible to increase the efficiency of evaporative air cooling. In case 1, a dividing partition is installed, on one side of which a fan 10 and filter 11 are installed, and on the other, plates 6 of the nozzle are installed, the dividing partition being made in the form of an arc of a circle with a diameter greater than width of housing 1 and the ends of the package 5 of plates 6 and the wall The 13 outlet nozzles 3 are arranged along arcs of circles with diameters equal to the width of the housing 1, while the ends of the plates 6 and the partition form a duct 14 of equal pressure, and the horizontal partition 12 forms with the cover 15 of the housing 1 auxiliary cavity 16 and air with openings 17 perpendicular to the inlet nozzle 2. A package 5 of the nozzle plates 6 consists of a moisture-proof surface and a capillary-porous surface, installed so that they block out the dry channels of the common air flow and the wet channels of the auxiliary flow. The outside air is cleaned in the filter 11, with the help of the fan 10 is injected into the duct 14 of equal pressure, in which it is evenly distributed over the inlet section of the plate pack 5, and enters the dry channels, passes through them, the air is cooled without changing the initial moisture content, then the total the flow is divided into two parts due to the resistance of the outlet. The main stream enters the premises, and the auxiliary stream enters the wet channels. The auxiliary stream draws heat from the general air flow that is cooled in dry channels, and is itself cooled and moistened, then discharged outside the cooled room. Efficiency is achieved due to uniform distribution of air in the channels and due to the increased area of the inlet and outlet sections of the channels. 4 il.

Description

nomu section of the package of 5 plates, and enters the dry channels, pass through them; the air is cooled without changing the initial moisture content, then the total flow is divided into two parts due to the resistance of the outlet. The main stream enters the premises, and the auxiliary stream enters the wet channels. Auxiliary

the stream draws heat from the general air flow cooling in dry channels, while it is cooled and humidified, then is ejected outside the cooled room. The efficiency is achieved due to the uniform distribution of air in the channels and by increasing the area of the inlet and outlet sections of the channels. 4 il.

The invention relates to air conditioning technology and can be used in systems for indirectly evaporative air cooling in rooms.

The aim of the invention is to increase the efficiency of evaporative cooling of air and compactness. .

FIG. 1 shows the air-conditioning of the side-mounted air cooling, top view ;, FIG. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; FIG. 4 is a section B-B in FIG. 2

The evaporative air conditioner comprises a housing 1 with an inlet 2 and an outlet 3 with air nozzles and a pallet 4 and a package 5 of nozzle plates 6 installed therein, forming channels 7 of the general air flow and alternating channels 8 of the auxiliary air flow and dividing partition 9.

The air conditioner is equipped with a centrifugal fan 10 for two-sided suction, a filter 11 and an additional horizontal partition 12, the fan 10 and the filter 11 being installed on one side of the partition 9, and the nozzle plates 6 on the other, and the partition 9 is made in the form of an arc of a circle with a diameter greater than the width of housing 1, and the ends of the stack of 5 plates 6 and the wall 13 of the outlet nozzle 3 are arranged along arcs of circles with a diameter equal to the width of the housing 1, while the ends of the plates 6 and the partition 9 form air 14 uhovod equal pressure, and the horizontal partition 12 defines with the cover 15 of housing cavity 16, the auxiliary air flow apertures 17 formed

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perpendicular to the inlet 2.

The package 5 of the nozzle plates 6 consists of a moisture-proof surface 18 and a capillary-porous surface 19 installed so that they block out the dry channels 7 of the total air flow and the wet channels 8 of the auxiliary flow.

The channels 8 are plugged from the air inlet side, and in the horizontal partition 12, in the same zone, holes 20 are made to allow the auxiliary air flow into the cavity 16.

The evaporative air conditioner operates as follows.

Outside air — the total LoS flow is cleaned in filter 11 and, with the help of a fan 10, is injected into a duct 14 of equal pressure in which it is evenly distributed over the entire inlet section of the bag 5 of the nozzle and enters dry ducts 7. Pass through the entire length of dry ducts 7 The total air flow L0 ° C, in contact with the moisture-proof (dry) surfaces 18 of the plates 6, is cooled without changing the initial moisture content to a temperature below the temperature of the wet outdoor air thermometer and close to the dew point temperature of the outside air. Next, the total air flow Bo6-y with these parameters goes to the outlet nozzle 3, where due to the aerodynamic resistance of the outlet orifice (not shown) the nozzle 3, the total air flow is divided into two parts: one part is cooled, without changing the initial moisture content of the main air flow with total air flow parameters of 1-0 & n entered into the outlet 3 through the outlet

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the hole enters the cooled room; the second part, the auxiliary flow with the same parameters as the main air flow LOCH, enters the wet channels 8, through which the total air flow moving through the dry channels 7 moves in a countercurrent. The capillary-porous surfaces 19 of the plates 6 are due to capillary forces are covered with a thin film of water evaporating into the core of a moving auxiliary air flow LBcn under the influence of psychrometric unevenness. This involves the transfer of latent and latent heat. Passing along the entire length of the wet channels 8, the auxiliary air flow LBC draws heat from the total air flow cooling in the dry channels thus cooled

In this way, the auxiliary air stream L is heated and humidified.

Further, the auxiliary air flow Lecn passes through the openings 2 and enters the cavity 16, from where, through the openings 17 of the cover 15, is emitted into the atmosphere outside the room to be cooled.

The efficiency of evaporative air cooling is achieved due to the uniform distribution of air in the duct of equal pressure and due to the increased area of the inlet and outlet sections of the channels 7.

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Claims (1)

Invention Formula The evaporative air cooling air conditioner, comprising a housing with an inlet and outlet air nozzles and a pallet and a package 1 of nozzle plates installed therein, forming channels of the general air flow and alternating with them channels of the auxiliary air flow, and dividing partition, so that that, in order to increase the efficiency of evaporative air cooling and compactness, it is equipped with a centrifugal double suction fan, a filter and an additional horizontal partition, while The fan and filter are installed on one side of the dividing partition, and the nozzle plates on the other, with the dividing partition made in the form of an arc of a circle with a diameter greater than the width of the case, and the ends of the plate pack and the wall of the outlet pipe are placed along arcs of circles with diameters equal to the width of the housing, wherein the ends of the plates and the partition form an air duct of equal pressure, and the horizontal partition forms with the housing cover a cavity of the auxiliary air flow with openings made Directly to the inlet. Room -Lt. atmosphere Ifen sixteen 1573311 BB 15 20 Phage.Z Atnaarer Room