Auxiliary machine accessories for gas boiler heating system
Gas-fired boiler auxiliary machines can be divided into the following types according to their functions:
1. Safety accessories: Safety accessories for natural gas boiler auxiliary machines mainly include safety valves, explosion-proof doors, water seal safety devices, high and low water level control alarms, etc. The main function of the boiler safety valve is to prevent the pressure of the medium in the pipeline or equipment from exceeding the specified value. For the installation method of the boiler safety valve, refer to the previous article.
2. Safety instrument: The safety instruments in the auxiliary machine of natural gas boiler include flow meter, pressure gauge, temperature gauge, operation control instrument, water level gauge and protection device. The pressure gauge is a meter that measures the actual pressure in a natural gas boiler. The function of the water gauge is to indicate the level of water in the natural gas boiler.
3. The drum: the natural gas drum is a closed part of the heating surface. The heating surfaces are connected together and form a water circulation loop with the water wall and the descending pipe. The steam water is stored in the drum to adapt to the load change, and the soda is internally provided. Separation devices and the like to ensure the quality of the soda.
4. Furnace: The furnace is used to ensure that the natural gas boiler fuel is burned out and the outlet flue gas temperature is cooled to the convective heating surface to work safely.
5. Air preheater: The air preheater in the auxiliary machine of natural gas boiler is used to heat the air to enhance the ignition and combustion, absorb the residual heat of flue gas, and reduce the exhaust gas temperature. It is one of the important auxiliary machines to improve the efficiency of this type of boiler. .
