该文从节能角度阐述了老机组风机改造中应用变频调速技术的经济效益。
The paper, from the point of view of energy saving, explains the economic gain available by applying the frequency transformation speed regulation technique in renovation jobs of fans of old sets.
目前我国大型机组基本采用静电式除尘器，而老机组多采用水膜式除尘器。
At present, our large generating units mainly adopt electrostatic precipitators, while the old units adopted water precipitators.
对于扩建机组的司机人员，应熟悉掌握新机组和老机组在调节系统上的差别。
The drivers of the expanding machine unit should know well and master the difference of the old and new machine unit in the regulating system.
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