Boosted air cooling tower

Abstract

The invention belongs to the field of heat exchange, and relates to a boosted air cooling tower, in particular to an air-cooling power generation air cooling tower structure and an air driving mode. Due to great difference of air temperature in winter and summer and dual action of strong wind, a pure natural ventilation air cooling tower is difficult to meet current cooling requirements. According to the boosted air cooling tower, a structure with axial flow fans of an electric and power generation dual-purpose motor, openable and closeable partition curtains and a warm passage disposed in a natural ventilator is adopted. Cooling capacity of the air cooling tower in summer is greatly enhanced, damage of strong wind is weakened greatly, excess draft in the air cooling tower in winder can be utilized, energy is recovered through the axial flow fans, and the warm passage is opened to melt an accidently-frozen heat exchanger. The boosted air cooling tower can be matched with direct air cooling and indirect air cooling units in various sizes.

Description

technical field [0001] The invention belongs to the field of heat exchange, in particular to an air-cooled natural ventilation air-driven drive mode for air-cooled power generation using air as a cooling medium. Background technique [0002] Due to the increasing shortage of water resources, the air-cooled power generation that uses air to directly or indirectly condense the exhaust steam of the steam turbine through the metal surface can greatly reduce the water consumption of thermal power plants and nuclear power plants, and the installed capacity in my country has reached hundreds of millions of kilowatts. [0003] However, due to the cold winter and hot summer in northern China, and the fact that northern China is just in the westerly belt of the northern hemisphere, the cumulative blowing time in a year can be as long as 3-4 thousand hours in some areas. [0004] During the high temperature period in summer, regardless of mechanical ventilation or natural ventilation, ...

AI Technical Summary

Problems solved by technology

[0010] Invention patents 200910083854.X and 200910089523.7 use axial flow fans, independent ventilation channels, deflectors, etc. on the outer circumference of the air-cooling tower to assist natural ventilation, and overcome the deterioration of the air-cooling effect caused by ambient wind and high temperature in summer. All the air must pass through the fans, which brings problems such as a large number of fans, high investment, a large area occupied by the air cooling system, and increased fan blade resistance during natural ventilation.

Images