The boiler is an energy conversion equipment.The energy input to the boiler includes chemical energy and electric energy in the fuel.The boiler outputs steam,high-temperature water or organic heat carrier with certain thermal energy.

The original meaning of the boiler refers to the water container heated on the fire.The boiler refers to the place where fuel is burned.The boiler includes two parts:the boiler and the boiler.The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life,and can also be converted into mechanical energy through steam power devices,or mechanical energy can be converted into electrical energy through generators.The boiler that provides hot water is called hot water boiler,which is mainly used for domestic use,and also has a small number of applications in industrial production.The boiler that generates steam is called steam boiler,often referred to as boiler,and is mostly used in thermal power stations,ships,locomotives and industrial and mining enterprises.