Dry-wet mixed large-scale cooling tower with continuous packing arrangement, cooling system and method

Abstract

The invention discloses a continuously-arranged-filler type dry-wet mixed large-sized cooling tower, a cooling system and a method for improving the cooling efficiency of the cooling tower. A wet type cooling area is arranged at the center of the bottom of a tower drum of the cooling tower. A dry type cooling area is arranged around the wet type cooling area. The dry type cooling area comprises first areas and second areas, wherein each first area and each second area are both in a sector shape. Each first area is adjacent to the corresponding second areas, and the first areas and the second areas are arranged around the wet type cooling area for a circle. The top of each first area is provided with a second cooling unit. The circumferential side of each second area is provided with an air inlet cooling unit and a first cooling unit. Air enters the first areas and / or the second areas for dry type cooling. The external cold air entering each first area and the corresponding second area flows through a group of cooling units (including the corresponding second cooling unit and the corresponding air inlet cooling unit) in the dry type cooling area from bottom to top, it can be guaranteed that air flows evenly in the dry type cooling area, and therefore the heat exchange effect in the dry type cooling area is enhanced. Because the wet type cooling area is arranged at the bottom of the inner portion of the tower drum of a dry type cooling tower, the function of a tower drum of an original small-sized natural ventilation wet type cooling tower or a tower drum of a mechanical ventilation wet type cooling tower in an existing air cooling unit system is replaced.

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 with continuous packing arrangement, 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, sma...

AI Technical Summary

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

Images