The air cooling unit renovation project jointly conducted by Gaohua and Cooperative Design Institute for Shaanxi Power Plant customers has been successfully put into trial operation.

In summer, due to high ambient temperature and humidity, the air temperature at the inlet of the air-cooled condenser increases, leading to a decrease in the cooling capacity and vacuum of the air-cooled condenser. Even due to the return of hot air, the cooling capacity of the air-cooled steam decreases, sometimes causing a sharp increase in the back pressure of the turbine and tripping in a short period of time.

After discussing with the design institute and the client, Gao Hua decided to add peak cooling equipment to the air cooling island to address the above issues. The peak cooling device is designed and manufactured by Gao Hua.

The installation of a peak cooling device on the air cooling island mainly leads some steam from the main exhaust pipe of the air cooling system to the newly added peak cooling device, thereby expanding the heat dissipation area of the steam turbine exhaust, reducing the cooling pressure of the air cooling island, improving the vacuum of the unit, solving the problem of limited load in summer, improving the power generation capacity of the unit, improving power generation efficiency, reducing coal consumption, and increasing business efficiency while not increasing the coal consumption and environmental emissions of the power plant, to achieve the goal of energy conservation, emission reduction, cost reduction, and efficiency improvement.

The successful operation of the peak cooling device has alleviated the limited output of the customer's air cooling unit in summer, reduced the impact of high temperature weather on the unit's load capacity, improved the unit's operational reliability and increased load capacity, further strengthened the unit's performance and peak capacity, reduced the air cooling fan mechanical and electrical consumption rate, and extended the service life of the air cooling fan, motor, and frequency converter. After being put into operation, the measured back pressure of the unit during the high temperature period in summer can be reduced by 5kPa, the unit can increase power generation by 100000 kWh/day, reduce coal consumption by 13.8 grams/kWh, save 3375 tons of standard coal annually, and reduce carbon dioxide emissions by 8602 tons.

GH Cooling is a professional manufacturer of evaporative condensers, closed cooling towers, air-cooled heat exchangers, etc. which have been used in power, chemical, metallurgy, petrochemical, air condition, and food refrigeration industries.