804.20B Centrifugal evaporative fans for construction machinery vehicles

Centrifugal evaporative fan is a kind of fan commonly used in construction machinery vehicles. It evaporates the moisture in the air through centrifugal force and evaporation principle to achieve a cooling effect. Centrifugal evaporation fan is mainly composed of a fan impeller, motor, air duct, and water circulation system. The motor drives the fan impeller to rotate, generating strong centrifugal force and strong wind in the air duct. Water is sprayed on the fan impeller through the water circulation system, interacting with the wind to form an evaporation effect. Centrifugal evaporation fans on construction machinery vehicles are usually installed in open spaces, such as the top or sides of the cabin. When working, the fan draws in the surrounding air, which, together with the evaporation of water, can substantially reduce the air temperature and make the working environment in the machinery vehicle more comfortable. Centrifugal evaporative fans are widely used in construction machinery vehicles, especially in high-temperature environments or when they need to work for a long time. It can effectively reduce the temperature inside the mechanical car, enhance the working efficiency, and also reduce the load of the engine of the mechanical car, prolonging its life.