Dry-wet mixing large-scale cooling tower with petal-shaped packing arrangement, cooling system and method

Abstract

A large-sized mixed wet-and-dry cooling tower having a filler in a petal-like arrangement, a cooling system and a method. Air from a first area (A) and that from a second area (B) in the cooling tower entering a wet cooling area are of different temperatures, thus forming a temperature difference in the wet cooling area. The petal-like arrangement of the filler in the wet cooling area enhances airflow in the wet cooling area and increases cooling effects of the wet cooling area. By arranging the wet cooling area at the inner tower bottom of a dry cooling tower as a substitute for the function of an existing miniature naturally ventilated wet cooling tower or that of a mechanically ventilated wet cooling tower in an existing air-cooled unit system, the cooling system for an air-cooled unit is simplified, thus reducing equipment investment.

Description

technical field [0001] The invention relates to the field of energy and power engineering, in particular to a dry-wet mixing large-scale cooling tower arranged with petal-shaped fillers, a cooling system and a method. Background technique [0002] In my country's coal-rich and water-poor areas, such as Inner Mongolia, Gansu, Shanxi, Xinjiang and other places. Due to the lack of water resources in these areas, air-cooled thermal power generating units are generally used. Compared with wet cooling units, air cooling units generally need to be equipped with small wet cooling towers or mechanical ventilation wet cooling towers for the following reasons: [0003] 1. Small steam turbines are generally driven by steam. The change of ambient temperature will cause the vacuum of the main steam turbine to decrease. If the small steam turbine shares the condenser with the main steam turbine, the power of the small steam turbine is easily affected by the ambient wind. Therefore, smal...

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Problems solved by technology

[0005] As we know above, during the design and construction of air-cooled units, they are generally equipped with air-cooled condensers and dry cooling towers (also known as air-cooling towers), plus small natural ventilation wet cooling towers or mechanical ventilation wet cooling towers, and there are components with the same functions Disadvantages such as repeated design, large footprint, complex system, and heavy maintenance workload

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