The principle of temperature drop: Water will absorb the heat from the hot air when steaming naturally. Its working principle: Extract wind through air blower, and the blower produces press, the air crosses the wet curtain, at the same time the water pump delivers water to the cloth water pipe on the wet curtain, and moisten the face of the whole wet curtain evenly, and the special angle of the wet curtain makes the water flow into one side where the air enters the wind directly, absorb a large amount of heat to lower the temperature through wet curtain, and filter it, which can make the wind nice, cool, moist and fresh. The water without evaporation falls back to the chassis forming waterway circulation. There are water level inductors on the chassis, when the water level lands to the fixed water level, it automatically open inlet valve to supply the source of water till the height of the booking water level, then close the inlet valve automatically. Parameter specification: Airflow(m3/h):18000 Power(Kw) :1.1 Voltage/Frequency(V/Hz) :380/50 Fan Type:Axle Motor Type:Three-phase Fixed Speed Controller Type :Intelligent LCD Capability characteristic: Injection shell is using modified PP composite materials and aluminum alloy column precision tectonic process; with the easy pull-out filters, wet screens paper of the frame protection and shockproof design, frame bearing capacity of 100 kg and above,with anti-corrosion, anti - ultraviolet, anti-aging15 years, high and low temperature resistance (subzero 20 fp C - 50 fp C) without distortion, and fuselage life for more than 10 years. LCD panel control system, using single-phase various frequency speed, three-phase various speed, three-phase fixed speed intelligent electronic control systems and closed all high-quality match for the electrical, intelligent sewage cleaned regularly, wrong phase, short phase, overload current, water shortages protection and fault alarm function. Adopt Sweden 5090-patented technology evaporative wet paper filter net , and the evaporative area in more than 85%; Using 3 leaves impeller, using silencers acoustic and noise reduction technology, the noise can be controlled lower than 56 dB.