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对热力计算矩阵法的基准流量的选定和末几级抽汽湿蒸汽焓及排汽焓的确定两个问题进行研究。首次选用主凝结水流量作为矩阵法的基准流量,减少了因选用给水流量作为基准流量的计算误差;对于末几级抽汽焓及排汽焓的确定,综合了ASMEPTC6A1982的两种方法及矩阵理论,提出了自己的解决方法。这些方法已在在线分析软件中实现,并为实际计算所证明。
The selection of the baseline flow rate of the heat calculation matrix method and the determination of the enthalpy of the wet steam at the last several stages of steam extraction are studied. For the first time, the main condensate flow rate is selected as the baseline flow rate of the matrix method, which reduces the calculation error of the selected feedwater flow rate as the reference flow rate. For the determination of the last few stages of extraction enthalpy and exhaust enthalpy, two methods of ASMEPTC6A1982 and matrix theory , Put forward their own solution. These methods have been implemented in online analysis software and proved for practical calculations.