Air coolers are installed for cooling purposes.
Principle
Due to the loss of copper and iron when the generator works, the temperature of the iron core and coil will gradually increase. In order to reduce the aging rate of the coil insulation and prolong its service life, the temperature of the coil should not exceed a certain value, such as 100°C. Therefore, measures should be taken to discharge the heat generated by the coil and the iron core in time to maintain the temperature of the coil insulation not exceeding the specified value. The most commonly used cooling methods include air cooling, hydrogen cooling, and water cooling. Although the effect of air cooling is poor, the air cooling equipment is simple and reliable, so it is widely used in power groups.ogens of medium and small size.
The function of the chiller
The air cooler uses cooling water to cool the higher temperature air coming out of the generator, then sends it into the generator . In fact, when the generator operates, the heat generated is removed by the cooling water, and the air only acts as a fluid.
Due to the poor air cooling effect, large generators often use hydrogen cooling and water cooling with good cooling effect.
What is the function of the cooling tower in a thermal power plant?
The cooling water from the water-cooled generator does not come into contact with the stator coil. According to relevant public information, the stator coils of the water-cooled generator are not in contact with the cooling water and there is no direct physical connection between them.The cooling water of the water-cooled generator acts only on the excitation coil, while the stator coil is affected by the induction of the magnetic field of the alternating current.
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.
More precisely, the tower ofCooling of a thermal power plant mainly reduces the water temperature through water circulation and heat dissipation through evaporation, thereby dissipating heat. The water from the 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 processus cyclic, the cooling tower can dissipate heat to ensure the normal operation of thermal power plant equipment.