What are the components of a gas boiler

The steam outlet of the gas engine is mostly an integral part of the gas boiler based on the outer tube, tube, and tube plate.Main functions of gas boilers:

Through the heat release from fuel combustion and the heat transfer between high-temperature flue gas and the heating surface, the heated water is ultimately converted into qualified superheated steam with certain parameters.After three stages of preheating, evaporation, and superheating in the boiler, water becomes superheated steam.In fact, in order to improve the efficiency of the steam power cycle, there is a fourth stage, namely the reheating stage, which returns the depressurized and cooled steam to the boiler for heating after the expansion work of the high-pressure cylinder of the steam turbine is completed.Then send the low-pressure cylinder of the steam turbine to continue working.In order to meet the needs of these four stages, the boiler must be equipped with corresponding heating surfaces, namely economizer, water-cooled wall, superheater, and reheater.The superheater and reheater are located above the horizontal flue and the rear flue.The function of the fuel system is to ensure the fuel required by the burner.The fuel system of the fuel burner mainly includes: oil pipes and joints, oil pump, solenoid valve, nozzle, and heavy oil preheater.Gas burners mainly include filters, regulators, solenoid valve groups, ignition solenoid valve groups, fuel butterfly valves, etc.

The economizer is arranged below the tail flue.In order to utilize the waste heat of flue gas to heat the air required for combustion, an air preheater is usually installed after the economizer.Some large boilers preheat the heating surface or overheat and reheat the heating surface inside the furnace.