The working process of the cooling tower:
Take the working process of a circular counterflow cooling tower as an example;
The hot water is pumped from the main engine room through the water pump through the pipeline, the cross throat, the curved door, the central throat, and the circulating water is pressurized into the watering system of the cooling tower. The water is evenly spread on the packing through the small holes in the water pipe. The dry low-value air enters the tower from the bottom into the wind net under the action of the fan. The hot water flows through the surface of the packing to form a water film and space for heat exchange. The hot air with high temperature and high value is extracted from the top and cooled. The water drops into the bottom basin and flows into the main unit through the outlet pipe. Under normal circumstances, the air entering the tower is the air that dries the low-humidity temperature. There is obviously a difference in concentration of water molecules and a difference in kinetic energy between the water and the air. When the fan is running, under the action of static pressure in the tower, Water molecules continuously evaporate into the air, becoming water molecules, and the average kinetic energy of the remaining water molecules is reduced, thereby lowering the temperature of the circulating water. It can be seen from the above analysis that the temperature at which the evaporation is cooled down to the air (generally the dry bulb temperature) is lower or higher than the water temperature, as long as the water molecules can continuously evaporate in the first air, the water temperature will decrease. However, the evaporation of water into the air does not continue indefinitely. When the air contacted by water is not saturated, the water molecules continuously evaporate into the air, but when the air on the contact surface of the water vapor reaches saturation, the water molecules cannot evaporate, but are in a state of dynamic balance. The amount of water molecules that evaporate is equal to the amount of water molecules that return from the air to the water, and the water temperature remains the same. It can be seen that the drier the air formed with water, the easier it is to evaporate, and the water temperature is easily lowered.
How the cooling tower works:
A cooling tower is a device that utilizes the contact of water and air to dissipate waste heat generated in an industrial or refrigeration air conditioner by evaporation. The basic principle is: dry (low content) air enters the cooling tower from the air inlet net after being twitched by the fan; high temperature water molecules with large pressure of saturated steam flow to low pressure air, damp heat (high content) water The word water system is spilled into the tower. When the water droplets come into contact with the air, on the one hand, because there is no direct heat transfer with the air, on the other hand, due to the pressure difference between the surface of the water vapor and the air, evaporation occurs under the action of pressure, and the latent heat of evaporation is brought to the present. The heat in the water is taken away to evaporate heat and heat, so as to achieve the purpose of cooling.
A cooling tower is a device that utilizes the contact of water and air to dissipate waste heat generated in an industrial refrigeration air conditioner by evaporation. The basic principles of its work are:
The dry (low content) air enters the cooling tower from the air inlet net after being twitched by the fan; the high temperature water molecules with large pressure of saturated steam flow to the air with low pressure, and the hot (high content) water is sprinkled by the water sowing system. Enter the tower. When the water droplets come into contact with the air, on the one hand, due to the direct heat transfer between the air and the water, on the other hand, due to the pressure difference between the surface of the water vapor and the air, the evaporation phenomenon occurs under the action of the pressure, and the latent heat of evaporation is brought up to date. The heat in the water is taken away to evaporate heat and heat, so as to achieve the purpose of cooling.
Concerned about surprises
Label: Working process and principle of cooling tower
Previous: Working principle and process of CNG filling station of compressed natural gas Next: How to extend the service life of plastic crusher
Paint Roller Frame,Stick Type Roller Frame,Screw Fix Roller Frame,4 Wires Cage Roller Frame
PRO-CHARGER CO., LTD. (VICTOR HERO HOLDINGS LTD, TIME VALUE LTD.) , https://www.pro-chargerco.com