所有的吹灰器都应配有正压、密封空气系统至壁箱和圆盘阀。该处空气来自密封空气风机系统。
All sootblowers shall be provided with a positive pressure, sealing air system to wall boxes and poppet valves. This air shall be obtained from the seal air fan system.
密封风机能使空气达到设定的压力，此压力应高于烟气在烟道中的运行压力。
The seal air fans deliver a design pressure that is above the operating pressure in the flue work.
很好密封另一方面建筑物，像这样将有一个热回收通风机，这带来了室外空气。
Very well sealed buildings, on the other hand, like this one will have a heat recovery ventilator, which brings in outdoor air.
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