The working principle of the steam boiler, the heating equipment (burner) releases heat, first absorbed by the water wall through radiant heat transfer, the water of the water wall is boiled and vaporized, and a large amount of steam is generated into the steam drum for steam-water separation (except for the DC furnace), and the separated saturation The steam enters the superheater, and continues to absorb the flue gas heat of the top of the furnace and the horizontal flue and tail flue through radiation and convection, and the superheated steam reaches the required working temperature. The boiler for power generation is usually also equipped with a reheater, which is used to heat the steam after the high-pressure cylinder performs work, and the reheated steam from the reheater goes to the medium and low pressure cylinders to continue to perform power generation. Generally speaking, a steam boiler is a device that absorbs the heat energy of fuel combustion and turns water into steam with certain parameters (such as pressure, temperature, etc.). The boiler is divided into a pot and a furnace. The pot is a metal container used to hold water. The furnace is a part of fuel combustion. The water in the pot absorbs the heat of fuel combustion in the furnace and is converted into steam. The basic principle is similar to boiling water. Equivalent to a kettle, stove is equivalent to a stove.
How the boiler works
A boiler is an energy conversion device. The energy input to the boiler is in the form of chemical energy, electrical energy, and heat energy of high-temperature flue gas in the fuel. After the boiler is converted, it outputs steam, high-temperature water, or organic heat carrier with a certain amount of heat energy. . Mostly used in thermal power stations, ships, locomotives and industrial and mining enterprises.
The main working principle of the boiler is a thermal equipment that uses the heat energy released after the fuel is burned or the waste heat in industrial production to transfer it to the water in the container to make the water reach the required temperature or steam of a certain pressure. The boiler is carried out in two parts, “boiler” and “furnace” at the same time. After the water enters the boiler, in the steam-water system, the heat is transferred to the water in the boiler heating surface, so that the water is heated to a certain temperature and pressure of hot water or steam is generated, which is led out application. In the part of the combustion equipment, heat is continuously released by the combustion of fuel. The high-temperature flue gas generated by the combustion spreads the heat to the heating surface of the boiler, and the temperature of the boiler gradually decreases and is finally discharged by the chimney.