The role of the cooling tower can be divided into two main functions: heat dissipation and energy saving: it can remove waste heat from the machine's action process, enhance the operation capacity of the machine itself, and protect the machine;
Energy saving: Large central air conditioning reflects this point more intensely. The cooling tower can effectively adjust the energy efficiency, thus cooling the operating cost of the machine itself;
Take a thermal power plant as an example:
(1) The boiler heats the water into high temperature and high pressure steam;
(2) steam pushes the steam turbine to work to make the generator generate electricity;
(3) The spent steam after the work of the steam turbine is discharged into the condenser, and is exchanged with the cooling water for condensation, and then recycled to the boiler for recycling;
(4) During the thermal cycle; the waste heat in the exhaust gas is transferred to the cooling water in the condenser to raise the temperature of the water;
(5) The cooling water with waste heat is transferred to the air in the cooling tower;
(6) Exhausting the atmosphere from the exit of the tower. The water cooled in the cooling tower becomes low-temperature water, which is pumped into the condenser and recycled.
(7) The previous cycle is the circulation of water in the boiler. The latter cycle is the circulation of cooling water. In other industrial sectors, such as petroleum, chemical, steel, etc., cooling towers are also widely used.
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