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types of boiler and their characteristics

Note: The cleaning cycle gas-fired types of boiler and their characteristics

Large boiler: 2 ~ 3 years cleaned once; Medium Boilers: 3 to 5 years washed once; small boiler: 4 to 6 years washed once.

Emergency shutdown processing steps gas types of boiler and their characteristics boiler will sometimes burst some cases, faced with the handling of the emergency shutdown. Xiao Bian summary of the situation based on past experience and measures to deal with the emergency shutdown of the boiler, to help you understand more fully the boiler. First, when the following conditions requiring emergency shutdown 1, vapor pressure exceeds the allowed safety pressure, stopping for gas taken, strengthen water supply, after the wind reduction measures, the pressure is still rising. 2, boiler water, water tables have not see the water level in the steam drum water level gauge steam valve closed or measures to increase the water supply, the water level is still invisible. 3, boiler filled with water, the water level has risen to the highest level of visibility, turn on the water but still no visible water level appears. 4, all the water table or pressure gauge all does not work properly. 5, all safety valves, sewage valve does not work properly all. 6, the boiler pressure parts, such as a drum, tube, water wall tubes is damaged, or when the personal security device crisis. 7, water supply equipment failure, nor spare. 8, while the furnace wall cracks during collapse danger. 9, delivery, induced draft fan damaged, can not continue to run down. 10 other events a serious threat to the safe operation of the boiler. Second, the emergency shutdown processing step 1, quickly turn off process. First shutdown burner, and close the gas supply valve to stop gas supply, and then cut off the valve, and finally opening the air exhaust valve or safety valve down precipitation. 2, rapid cooling furnace water treatment. After the shutdown can not continue to feed water to the boiler. When there is no water leakage or water, the cooling time can be shortened, accelerated cooling rate, cooling down the sewage water through alternate methods, and maintain the level. When the boiler is severely short of water, the method can not take rapid cooling, water supply to the furnace is prohibited to continue, otherwise there will be risk of explosion occurred. When the boiler is full of water, should be reduced combustion (fire thought into a small fire), open the drain valve turn on the water, while the opening of the trap on the main and sub-cylinder steam pipe to prevent steam away large amounts of water to produce water-flushing . 3, during shutdown, so that the furnace is not cooled too fast, to prevent the flue gas, the pressure receiving member and other member by inflation port being damaged by quenching.

Boiler Fan analytical work principle and common installation and maintenance methods? Boiler Fan works: it relies on mechanical energy input, increase the gas pressure of the gas sent to the mechanical side by side, it is a slave fluid machine. Works in induced draft fan and the compressor turbine is substantially the same, but due to the low gas flow rate, little change in pressure, the gas is generally not necessary to consider the change in specific volume, i.e., the process gas as incompressible fluid. Boiler Fan application to blower widely used in factories, mines, tunnel ventilation, cooling towers, vehicles, ships and buildings, dust emission and cooling; the types of boiler and their characteristics and industrial furnace ventilation and the air; an air conditioning equipment and household appliances cooling and ventilation equipment; grain drying and should select; tunnel and hovercraft air source and the pneumatic propulsion.

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