管束在受热管系两个集箱之间由许多平行连接管组成的部件称为管束。液体冷却介质就通过管束而形成自然循环、强制循环或直流循环。在管束进口,或者是饱和蒸汽温度,或者低于该温度。在管束出口,对有汽包的循环系统来说,是汽水混合物;对无汽包的直流锅炉循环来说,或者是含水分很少的湿蒸汽,或者是饱和蒸汽,或者是稍微有点过热的蒸汽。 Tube bundle In the heat pipe between the two header box by many parallel connection tube components called tube bundle. Liquid cooling medium through the tube to form a natural cycle, forced circulation or DC circulation. At the tube bundle inlet, either the saturated steam temperature is at or below this temperature. At the outlet of the tube bundle is a mixture of steam and water for a drum-type circulation system; for a drumless drum-type boiler, it is either wet steam with little moisture or saturated steam or slightly overheated steam.