SU1086310A1 - Device for humidifying ventilation air - Google Patents

Abstract

DEVICE FOR MOISTURING AIR VENTILATION, containing a chamber with a pallet and nozzles FOR inlet and outlet of air, a water supply collector with centrifugal nozzles inside the chamber, a separator, a source of acoustic oscillations and a temperature sensor connected to the amplification equipment, characterized in that, in order to reduce energy consumption, the source of sound vibrations is made in the form of differential sleeves placed in the collector, facing the smaller diameter to the incoming flow of air and parallel to the nozzles.

Description

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ABOUT)

The invention relates to an air-conditioning technique, primarily to aerosol production devices. A device for humidifying ventilation air is known, comprising a chamber with a pallet and nozzles for supplying and discharging air, a water supply collector with centrifugal nozzles located inside the chamber, a separator, a source of acoustic vibrations and a temperature sensor connected to the amplifying equipment 1. A disadvantage of the known device These are significant energy costs from an external source to the sound source. The purpose of the invention is to reduce energy costs. The goal is achieved by the fact that, in a device for humidifying ventilation air, comprising a chamber with a tray and nozzles for supplying and discharging air, a collector of water supply with centrifugal nozzles, a separator, a source of acoustic oscillations and a temperature sensor are placed inside the chamber. equipment, the source of sound vibrations in the form of differential sleeves placed in the collector, turned by the ends of a smaller diameter to the incident air flow and located GOVERNMENTAL parallelpo injectors. FIG. 1 shows a schematic of the structural embodiment of the proposed device; pas figs. 2 is a view A of FIG. one; in fig. 3 - graphs of the frequency of stalling of the vortices from the edge of the hub of a smaller diameter on the speed of air movement (curve A) and the natural frequencies of the gas channel (curves B, B). The device contains a chamber 1 with a pallet 2 and nozzles 3 and 4 for supplying and discharging air, placed inside the chamber 1 collector 5 of the water supply with centrifugal nozzles o, separator /, source 8 sound vibrations, made in the form of 5 differential sleeves 9 placed in the collector and Judithimeter d and D, respectively, facing the ends of a smaller diameter d to the incoming air flow and located in parallel to the nozzles 6. The device also contains a temperature sensor 11 connected to the amplifying equipment 12. Sensor to the temperature can be connected through amplifying and converter apparatus 12 with regulator 13 of the air supply. A sensor 14 may be connected to the amplifier converter equipment 12 for measuring pulsations in the chamber. The environment can be protected from the penetration of the sound from chamber 1 by sound-absorbing material 15. The device is operated as follows. Air through the inlet pipe 3 enters the sound source 8 - jet nozzles, which, due to the presence of a ledge between the sleeves 9 and 10 of different diameters d, D, are generators of acoustic oscillations. The oscillation generation mechanism is as follows; from the ledge between the differential sleeves 9 and (O, the vortices periodically break down, the frequency of which depends on the air supply speed (curve A in Fig. 3). If the frequency of the breakdown of the vortices coincides with the natural frequency of the gas droplet of the sleeve 9 (point K in Fig. 3) intense acoustic vibrations of pure tone, which affect the shroud of water sprayed by centrifugal nozzles 6, and contribute to intensive fragmentation into droplets and evaporation of water. The mixture of air and water vapor comes to the consumer through the outlet 4, non-evaporating and water from the walls of chamber 1 and separator 7 flows into pallet 2. When the air temperature at the inlet to collector 5 changes and, as a result, the natural frequency of the gas duct and sleeve 9 changes (for example, the increase in these parameters Fig. 3) amplifying equipment 12, according to the signal from the sensor AND temperature, using the air supply regulator 13 transfers the device to a new mode of operation (dot K in Fig. 3). The mode is adjusted, the device is tuned to the maximum amplitude of oscillation using sensor 14 for measuring pulsations. Thus, the device operates all the time at the maximum intensity of the generation of the energy of acoustic oscillations affecting a veil of fluid flowing from the centrifugal nozzles 6, causing intense crushing of water droplets in all modes of operation. The advantage of the device is an increase in the dispersion of the atomization of a liquid with a minimum expenditure of energy. this is achieved by improving the conditions of air-liquid contact.

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Claims (1)

DEVICE FOR HUMIDIFICATION OF VENTILATION AIR, containing a chamber with a tray and nozzles for supplying and discharging air, a collector of water supply with centrifugal nozzles located inside the chamber, a separator, a sound source and a temperature sensor connected to amplifier-converting apparatus, characterized in that, for the purpose of reduce energy costs, the source of sound vibrations is made in the form of differential bushings located in the collector, facing the ends of a smaller diameter to the incoming air flow and laid parallel to the nozzles.