【摘要】 在热力系统的定量分析中,定义了一个重要参数——纯热量折合系数,它表征了纯热量从某级加热器加入系统折合为等效吸热量的比率,也反映了各级回热抽汽的能级。推导了纯热量折合系数通用矩阵,便于计算机程序化计算。利用任一级的抽汽效率和对应级的纯热量折合系数,在不必结合功率方程、吸热量方程的情况下,便能很好地完成热力系统热经济性整体计算和局部定量分析。最后以300 MW机组为例进行了计算分析,验证模型的正确性。更多还原

【Abstract】 In quantitative analysis of thermodynamic system,pure heat conversion coefficient as an important parameter has been defined.The coefficient means the ratio of pure heat converting equivalent heat absorption when pure heat joins into the thermodynamic system from one of heaters,and also reflects energy grade values of extraction steam.By strict mathematics mathematical proof,the general matrix for pure heat conversion coefficient has been derived,and it is convenient to computerize.Using one of extraction steam efficiency and relative pure heat conversion coefficient without power equation and heat absorption equation,thermodynamic system calculation and local analysis can be completed well.A 300 MW unit was taken as an example to illustrate validity of the method.更多还原