It analyzes the problem of phosphate treatment for boiler water in niangziguan power plant, bring up suggestion, in order to reduce the corrosion and scaling of water wall tube.

对娘子关发电厂炉水磷酸盐处理存在的问题进行分析，对降低锅炉水冷壁的腐蚀和结垢提出了建设性意见。

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Therefore, the copper plain tube in HP heaters can be replaced with the steel spirally fluted tube for the requisition of having no copper in boiler feed water system.

因此，可以采用钢质螺旋槽管替代高压加热器中的铜光滑管，实现锅炉给水系统无铜化运行的要求。

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The online monitoring and fault diagnose results show that the accidents of occurring often boiler furnace corner tube rupture are due to water circulation condition badness at operation.

监测与诊断结果表明：锅炉经常发生在炉膛四角爆管的事故，是由于水循环工况不良而引起的。

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