The cooling tower of a thermal power plant is a device used to cool the heat generated during the electricity generation process. In thermal power plants, thermal energy is usually generated by burning fuels (such as coal, natural gas, etc.), and then the thermal energy is converted into steam through a boiler to drive a turbogenerator to produce electricity. During this process, the combustion of the fuel will generate a large amount of heat, and the operation of the generator will also generate a large amount of heat, which must be dissipated through the cooling tower to maintain the normal operation of the equipment.
Specifically, the cooling tower of a thermal power plant mainly reduces the water temperature through water circulation and heat dissipation through evaporation, thereby dissipating heat. The water ofthe cooling tower will be transported to the top of the tower by the water pipe, then atomized into small water droplets through the nozzle and enter inside the tower with the airflow. Inside the tower, the water droplets are in full contact with the air, dissipating heat through evaporation, dissipating heat, and the water temperature gradually drops. Through the wrapping layer inside the tower body, the contact area between water droplets and air is increased, thereby improving the heat dissipation effect. The cooled water returns to the pool again, is pumped by the circulation pump, and then enters the tower body again for circulation cooling. Through this cyclical process, the cooling tower can dissipate heat to ensure the normal operation of thermal power plant equipment.
This may be a cooling tower in ae thermal power plant. Why are we talking about a cooling tower in a thermal power plant and not in other industrial sectors? Because I judged it based on the high voltage line tower and chimney inside, it may be wrong because the figure is a bit wrong. Generally, domestic thermal power plants have only 2 cooling towers. But there is no doubt that the building you are talking about is a cooling tower.
Let's talk about the role of the cooling tower: Waste heat generated during industrial production or refrigeration processes is usually carried away by cooling water. A certain amount of water is absorbed by natural bodies of water such as rivers, lakes and seas in the form of cooling water. The cooling process equipment absorbs waste heat to increase water temperature, then releases it into rivers, lakes and. seas.This cooling method is called once-through cooling. When DC cooling conditions are not available, a cooling tower is required for cooling. The function of the cooling tower is to exchange heat between the cooling water carrying the waste heat and the air in the tower, so that the waste heat is transferred to the air and dispersed into the atmosphere . Cooling towers are also widely used in other industrial sectors such as petroleum, chemicals, steel, etc.