Steam boiler When should an emergency shutdown when the steam boiler Shanghai encountered the following situations, gas boiler manufacturers need to take emergency shutdown measures: (1) When the steam boiler water level gauge water level drops below the lowest water level, through the "call water when the "law also failed to see the water level. (2) increase the boiler when the water level continued to decline up time. (3) water supply system failure, unable to supply water when the boiler. (4) water level gauge and a safety valve failure, can not guarantee the safe operation of the boiler. (5) When the control valve and the drain valve malfunction when closed lax. (6) when the pressure receiving surface of the waterwall tubes or boiler smoke tubes bulging or cracking occurs, the furnace wall, collapsed down occurs when the front arch. (7) In case of failure of a safety valve, pressure gauge displays the boiler overpressure operation. When by the above situation, should immediately shutdown, should turn off the blowers, the door opened quickly, quick rotation of the grate, the furnace temperature is lowered to withdraw the fire, the coal supply is stopped. When the boiler overpressure, open the emergency vent valve provided on the sub-cylinder is discharged down. When the furnace severe water shortage, should not panic, in order to avoid operational errors. At this time, non-watered furnace. Then reduce oven temperature to find the reasons to be processed.
Hot water boiler in the school dormitory and classroom building are generally used for central heating, drinking water and bathing water aspects of teachers and students and so on. Shanxi Linxian County high school is an important educational school personnel training for the community. 2017, the school responded positively to national coal to gas and other environmental policies, but also to provide students with a more favorable living and learning environment, the school decided to phase out conventional coal-fired boilers, clean and environmentally friendly replacement for the gas boiler. After getting to know and choose the boiler industry, major companies, determined cooperation with professional production of clean fuel boiler fast boiler-by-side to provide a fast 4.2MW integrated condensing gas 2014 best sell coal fired hot water boiler (WNS4.2-1.0 / 115 / 70-YQ).
Gas boiler refers to a container for generating steam and hot water from natural gas(Calorific value 10000 kcal/Nm³), LPG(Calorific value 22929 kcal/Nm³), artificial gas(such as city coal gas, Calorific value 3000-4000 kcal/Nm³), biogas(Calorific value 5200-6000 kcal/Nm³) and other fuels. In general, gas boilers are usually packaged boilers.
Industrial boiler energy saving measures which are currently the main problems of industrial boilers have low thermal efficiency of boilers, energy can not be effectively utilized, resulting in waste; old boilers, automatic control level is not high, affecting boiler combustion efficiency; energy-saving regulation in place, and many other issues . In order to prevent pollution of the environment, reduce energy consumption, industrial boiler energy saving technical measures as follows: (1) the transformation of coal to the device. The modified ingredients bucket coal to the coal layer, using gravity filtering, the pulverulent raw coal, lump coal from top to bottom on the grate loosely distributed, facilitates air intake, improve combustion, improve the combustion rate of coal, reduced ash carbon content. (2) the transformation of the combustion system. For forward Stoker, the transformation from a combustion system is injected into the furnace in place an appropriate amount of pulverized coal to the furnace in place, so that the combustion grate base layer, the increase amount of suspension firing. (3) the transformation of furnace arch. According coal actually used, appropriately changing the shape and position of the furnace arch, can improve combustion, improve the combustion efficiency. (4) Transformation of grate-fired boiler circulating fluidized bed boiler. Employ a circulating fluidized bed boiler is a pulverized coal boiler in the furnace of the circulating fluidized combustion mode, which is 15-20% higher than the thermal efficiency of the boiler burning layer. For a variety of coal, limestone powder may be used in the furnace desulfurization, greatly reducing the content of the flue gas emissions of S02. Using (5) inverter technology, auxiliary boilers transformation. (6) The automatic control system, real-time adjustment of the heat output of the boiler, to save energy. (7) recovering the condensed water. (8) boiler replacement, replace old boiler with a new boiler. (9) flue gas discharge system reform.
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