different Steam generator Both have their own advantages and disadvantages, such as: electric steam generator, easy to operate, high safety, low procurement cost, but high operating cost; Gas steam generator Easy operation, poor security, low procurement cost, but low operation cost. Biomass steam generator Difficult operation, medium security, high procurement cost and low operation cost.

  Gas steam generator It is a mechanical equipment that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. In this way, the stacking of coal as a fuel can be avoided, or the device for storing oil can be saved. In other words, the gas-fired steam generator does not need any fuel space, so the environment around the boiler will be clean and tidy, conducive to environmental protection, and in line with people's environmental requirements. Methods for improving thermal efficiency of gas steam generator:

Gas steam generator It is necessary to conduct various analysis and research during design to ensure the thermal efficiency of. Increasing the heat transfer area of the convection section can improve the thermal efficiency of the furnace. However, generally speaking, the heat transfer area of the radiation section has an appropriate range due to the size of the grate or the shape of the burner, and it is not the best policy to increase the heat transfer area of the radiation section too much. Therefore, the method of increasing the heat transfer area of the convection section is usually adopted to improve the thermal efficiency of the gas steam generator.

Setting air preheater is one of the effective measures for the thermal efficiency of gas steam generator. Air preheater is used for heat recovery, but the problem with air preheater is that low temperature corrosion of materials is easy to occur when sulfur containing fuel is used. In order to control this corrosion to some extent, a limit should be set for the metal temperature in the low temperature zone according to the amount of sulfur in the fuel. Therefore, there should also be a restriction on the temperature of flue gas at the outlet of air preheater. In this way, the achievable thermal efficiency can be determined.