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检查组正在巡视地方发电站的一个厂子。他们中有工地检查员苏森、主管和他的助手汤姆以及设备总工程师琼·查特。检查组已经检查了大部分的工序,现在到了控制室,他们在审查一系列的仪表、记录器和指示器,它们随时显示着巨大的燃煤蒸汽发电机工作中所产生的温度、压力数据和燃烧细节。 “现在,有一个很多人没有注意到的读数,”主管指着在熔炉的上气道中显示2/10英吋水(负压力)的指示器,“琼,可以告诉你,熔炉的自动控制是很重要的。”他转向总工程师,“告诉他们,几年前你工作的那个厂子里忽视钩起燃炉压力控制器的经历”。琼清了清嗓子,“当然,我要告诉你们的你们已经知道了。尤其是我的朋友、主管。任何运用一个所谓的平衡通风设备的燃料设备。就像这里的一样,有一个通风扇和一个吸风扇。排风扇为燃烧炉保持空气的正压力。在尾部的吸风扇,从炉中吸出废气,通过后部装备——空气加热器,除尘器——到烟囱消掉。这就是说,如果控制器适当地钩起来控制吸风扇节阀,那么炉中
The inspection team is inspecting a plant at a local power station. Among them are site inspector Su Sen, supervisor and his assistant Tom, and chief equipment engineer Joan Chit. The inspection team has checked most of the processes and now it is in the control room where they are reviewing a series of meters, recorders and indicators that show the temperature and pressure data generated by the huge coal-fired steam generator at any time and Burning details. ”Now, there is a lot of people did not notice the reading, “ supervisor pointed at the furnace in the upper airway display 2/10 inch water (negative pressure) indicator, ”Joan, can tell you the Automatic control is important. “” He turned to the chief engineer, “and told them that the factory you worked at a few years ago ignored the experience of hooking the burner pressure controller.” Jo cleared his throat, "Of course, I already told you guys you know, especially my friend and supervisor, any fuel device that uses a so-called balanced ventilation device, as here, has a fan And a suction fan. The exhaust fan holds the positive pressure of the air in the burner. The suction fan in the tail suctions the exhaust gas from the furnace and passes through the rear equipment - air heater, dust collector - to the chimney. That is, If the controller is properly hooked to control the suction fan valve, then the furnace