The main components of gas-fired steam boiler include furnace, economizer, steam drum, water wall, combustion equipment, air preheater, furnace wall and frame. Among them, the role of the furnace is to ensure that the boiler gas burns out; The economizer can use the heat of the tail flue gas to continue heating, saving the consumption of gas; The drum is the main body of the boiler and can store soda water; The water wall plays the role of absorbing the radiant heat of the furnace; The combustion equipment inputs fuel gas and air needed for combustion into the furnace; The function of air preheater is to heat combustion air and improve boiler efficiency. The furnace wall is the shell of the boiler, which can play the role of heat preservation and sealing; And the frame is the support that supports the whole boiler.
In addition to these main components, the gas-fired steam boiler also includes air induction equipment for removing combustion flue gas, dust removal equipment for removing fly ash, fuel supply equipment for storing and transporting gas, water supply equipment for supplying water to the boiler, dust removal and impurity removal equipment, gas supply equipment and automatic control equipment.
When using a gas-fired steam boiler, we must first ensure that the water used in the boiler is qualified after treatment. Whether it is polluted water or water with too high hardness and inappropriate pH value, it will affect the service life of the boiler and may seriously lead to accidents. Therefore, hot water must be pretreated when it is input into the steam boiler. The inlet water temperature should be kept above 20℃ and as close as possible to the furnace body temperature, which is conducive to improving boiler efficiency and saving energy.
The gas-fired steam boiler must also be maintained and cleaned regularly. The water level gauge should be cleaned once a day, and the low-level cut-off device and water level controller should be cleaned at least once a month. Sewage treatment should be carried out once a day. Check whether there is leakage caused by sewage after disposal, and if there is, it must be repaired in time. Open the front and rear door covers regularly to remove the dust accumulated in the flue and ensure the combustion efficiency of the boiler. After stopping the boiler, the boiler should also be maintained. If the boiler stops for a short time, the wet maintenance method can be adopted, that is, water is injected into the boiler to exhaust the air in the boiler. If the furnace is stopped for a long time, it is necessary to drain the water in the furnace and turn on the water in the manual drying furnace. After removing water, put the desiccant into the furnace, which needs to be replaced regularly to ensure the drying effect. Remember to take it out before using the steam boiler again.
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