Cooling tower at present is a common water resource recycling equipment. The main working principle is using water and air happen heat exchange in the tower to apply drug treatment to water, making the water reach to the required temperature and quality.
  Cooling tower contain industrial and civilian type. Industrial cooling tower is mainly used in petroleum chemical industry, steel refining, power plant and water circulation system, with working environmental temperature at. And civilian cooling tower mainly used in hospital, hotel, public building, with a working environmental temperature at , low noisy. According to its shape, it can be parted into round-shape tower and square-shape tower, and according to the direction of the water flow, it can be parted into countercurrent and cross flow type.
  Countercurrent cooling tower with the water flow from up to down, but the air from down to up make a countercurrent movement. Its water distribution mode contains water distributing rotating spraying and spray pipe spraying. Cross flow cooling tower with the water flow from up to down, and the air flow into the tower from the parallel water flow, and its water distribution use pool type nature water spraying.