Structure and Characteristic Analysis of Wet - cooling Tower in Coal - fired Unit

The wet cooling tower is one of the important components of the coal-fired unit. The surface form of the commonly used leaching filler is the drip type, the thin film type and the dripping film type 3. The different structures and characteristics of the three kinds of filler materials are introduced, and the matching tower The influence of the type of filler structure, the density of water and other factors on the water temperature of the tower and its influence on the economic efficiency of the tower were analyzed. The technical measures to improve the cooling efficiency of the cooling tower were discussed.
Thermal power as an important part of the energy structure, occupies a leading position in the power industry, its installed capacity of the total installed capacity of more than 70% of the total generating capacity of more than 80% of the total power generation, mainly in the vast inland areas, Is the coal-producing areas, such as Shanxi, Inner Mongolia and other places.These areas of water resources are poor, natural factors do not have a lot of use of air-cooled unit conditions, not suitable for DC cooling and air-cooled tower.Therefore, most of our inland coal- The cooling tower is made of hot and dry air, dry and dry type, and is divided into natural ventilation and mechanical ventilation by means of ventilation. Ventilation, mixed ventilation 3 kinds; according to the direction of hot water and air flow is divided into countercurrent, cross flow (AC) type, mixed flow 3. Natural ventilation double curve countercurrent wet cooling tower is the mainstream of domestic thermal power plant tower type. Cooling tower (referred to as the wet tower) in direct contact with the water in the water, through the heat transfer and evaporation heat will be transported to the heat of water to the air. This cooling tower by the ventilation tube, water distribution system, Means (filler), ventilation, and water collection sump 6 parts.
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