Central air supply air cooling island of a power plant

Abstract

A concentrated air supply air cooling island of a power plant comprises an air feeder, air cooling radiators and an air delivery pipeline. The upper ends of the air cooling radiators are communicated with a steam distribution pipe, and the lower ends of the air cooling radiators are communicated with a condensate pipe. The air delivery pipeline is provided with an air inlet which is provided with the air feeder. A plurality of air outlet pipes are arranged on the upper end face of the air delivery pipeline, the air cooling radiators are arranged above the air outlet pipes, and the air cooling radiators are in a double-curved-line shape. The concentrated air supply air cooling island of the power plant can generate spray air flow to cool the air cooling radiators, the cooling air volume is increased through the wall attachment effect, and the radiating capability of the air radiators is further improved; the multiple air cooling radiators can share one or two draught fans for cooling, the total power consumption amount of the air cooling radiators of the power plant is reduced, and the auxiliary power supply index of the power plant is decreased; the spiral turning line layout or the rectangular layout is adopted for the air delivery pipeline, the occupied land area can be reduced, observation and maintenance are facilitated, and the natural environment is protected.

Description

technical field [0001] The invention relates to the technical field of air cooling and heat dissipation of condensers. Background technique [0002] It is an important measure to save water resources that the condenser of a power plant adopts air cooling to dissipate heat. Its working principle is: the high-temperature steam drives the steam turbine to rotate to drive the generator to generate electricity, then enters the condenser of the steam turbine, and then enters the tube radiator or plate radiator through the pipeline. Due to the large surface area of ​​the radiator, the high temperature inside is cooled by air The steam becomes condensed water and enters the lower pipe, and then enters the boiler through the water pump for circulation and heating. This type of condenser installation that cools with air instead of water in power plants in water-scarce regions is called an air-cooled island. In the prior art, each air-cooled radiator of the air-cooled island is equip...

AI Technical Summary

Problems solved by technology

This kind of air-cooling island with decentralized air supply not only occupies a large area but also consumes a lot of power. Taking a 200MW thermal power unit as an example, the unit needs to provide air-cooling fans for 24 air-cooling radiators. Each fan The power of the unit is 90kW, and the power consumption during operation is 2160kW. This power consumption indicator alone accounts for 1.08% of the power generation of the unit.

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