DanVex HUM-3S Посібник з експлуатації - Сторінка 5
Переглянути онлайн або завантажити pdf Посібник з експлуатації для Зволожити DanVex HUM-3S. DanVex HUM-3S 11 сторінок. Ultrasonic humidifiers
Друкувати сторінкуIntended use of the product
The product is designed for effective and controlled humidification of the air at atmospheric
pressure in the temperature range from +5°С to +40°С. It can either be used as an stand-alone
unit installed inside or outside of the premises to be humidified or together with an air treatment
system.
Some examples of ultrasonic humidification:
Textile industry - electrostatic charging removal and dust reduction;
Paper manufacturing - electrostatic charging removal and dust reduction;
Server rooms - electrostatic charging removal;
Electronic components production - electrostatic charging removal and humidity
control;
Automotive production - humidity control and dust reduction;
Plastics industry - electrostatic charging removal and dust reduction;
Warehouse premises - humidity control, dust reduction, shelf life increase;
Different purposes laboratories – air humidity control;
Tobacco industry - humidity control and dust reduction;
Fruit and vegetables storage – humidity control;
Green houses, growing rooms, hot houses – maintaining of required humidity level;
Local misting - creation of scenes during filming for environmental simulation (fog,
smoke of gunfire etc.)
Operating principle
Ultrasonic humidification principle is based on two effects superposition:
1. Capillary-wave theory
Ultrasonic generators generate surface Rayleigh waves of a regular shape in a water tank.
Finest water mist originates from the waves crest and is injected into the atmosphere.
2. Cavitation bubbles collapse
Oscillator (transducer) amplitude variation causes strong hydraulic shocks which generate
finest cavitation bubbles. Further collapse of these bubbles results in fine water mist in the
air.
Superposition of the two mentioned effects in ultrasonic humidifiers ensures generation of
uniform water mist with minimum power consumption!
An piezoelectric transducer located in the water layer transforms a high-frequency
signal into high-frequency mechanical oscillations. Since the oscillation speed increases to
the level when water particles are not able to follow the transducer oscillating surface
anymore alternation of high-ratio instantaneous compression and vacuum occurs resulting in
generation of air bubbles (cavitation). At cavitation standing capillary waves are generated,
the finest droplets disrupt the water surface tension and rapidly spread in the atmosphere in
the form of steam and then they are absorbed into the air flow.
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