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超临界机组锅炉水压试验参数分析

Thermal Power Generation(2012)

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Abstract
对国内外现行规范标准的相关规定进行了比较分析,综合锅炉水压试验的有效性和安全性给出了试验压力、检查压力、升降压力速度、试验介质温度等参数的可行值。锅炉水压试验时,试验压力应为过热器出口压力的1.25倍,且不小于省煤器进口压力的1.1倍;升压速度应≤0.3MPa/min,当压力升至过热器出口工作压力后,升压速度应≤0.1MPa/min;试验水温一般为21~50℃;对于奥氏体耐热不锈钢受压元件,试验用水的氯离子含量应<0.2mg/L。
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Key words
medium temperature,pressure,boiler,supercritical unit,speed of pressure rise and drop,hydrostatic test
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