Boilers are widely used in various fields of contemporary society and national economy. At this stage, most of the electricity in China is obtained by using steam to drive generator sets to generate electricity. Industrial and agricultural (such as machinery, chemical industry, paper industry, textile industry, agricultural product processing industry, etc.) Steam is inseparable from the production process, and all the heat energy required for air conditioning and domestic hot water comes from high-temperature hot water or steam. Therefore, the boiler has become an important special equipment that is indispensable for modern social production and people's lives.
Gas steam boiler is a thermal energy conversion device that uses natural gas, liquefied gas, city gas and other gas fuels as fuel. The heat released in the furnace heats the water in the boiler and vaporizes it into steam. The water is constantly being The energy released by the combustion of gaseous fuel in the furnace is heated, and the temperature rises and generates pressurized steam. Since the boiling point of water rises with the increase in pressure, the pot is sealed, and the expansion of water vapor inside is restricted to produce pressure formation. Thermal power is widely used as an energy source. Gas boilers are very different from coal-fired boilers. They use burners to inject gas into the boiler chamber for combustion without using grate equipment. In addition, no solid ash is produced after combustion of the gas boiler, so there is no need to use slag discharge equipment. However, if the mixture of gas and air injected into the furnace in a fixed space is extinguished, it will easily explode. Therefore, the gas boiler must adopt a highly automated combustion control system. Compared with coal-fired boilers, gas-fired boilers have the advantages of high combustion efficiency, environmental protection, simple and compact structure, low operating safety and noise, simple operation and easy automatic combustion control. Small and medium-sized gas-fired boilers are gradually replacing small and medium-sized coal-fired boilers. The trend has a very broad development prospects.