The Optimal Design Of Direct Air Cooling Island Operation Safety Analysis Of 660MW Thermal Power Units

Compared with the conventional wet cooling technology, the biggest advantages of air cooling technology of water-saving and environmental protection, which can effectively reduce the power plant water 80%, some plants can reach 85%, but also can avoid conventional open cooling water pollution to the environment; The second is because do not need construction of cooling tower, in capital investment and the area also has a certain advantage. Due to the use of air cooling technology can effectively solve the problem of rich coal poor water areas of power generation, therefore, our country construction during the period of "much starker choices-and graver consequences-in" will also encourages the air cooling technology of power plants.After obtaining the optimal design, to ensure the equipment to meet the design requirements of a company designs, manufactures Direct Air Cooled Condenser single fan unit system, the operating conditions as close to the design value, tolerance under conditions of vacuum tightness, Numerical air-cooled condenser cold air resistance, thermal resistance of air-cooled condenser, air-cooled condenser overall heat transfer coefficient of analog measurements, draw relevant conclusions demonstrate the design and site requirements are met. And in the summer and winter operation problems and causes of pollution flashover Cooling Island were below the electrical equipment put into operation after direct air cooling unit analysis, and get solutions to related issues, scientific and effective transformation, to ensure reliable Direct Air Cooling Unit run.