作　　者： ; (刘咏豪）;

机构地区： 江苏科技大学

出　　处： 《江苏科技大学学报（自然科学版）》 2017年第1期40-43,60,共5页

摘　　要： 角管式蒸汽锅炉水动力管道系统的结构复杂多变,传统水动力压差解法因其局限性无法高效、准确地计算其水动力特性,因此,文中提出了一种基于图论分析的水动力计算方法.根据角管式蒸汽锅炉管道结构得到由节点和线段组成的有向图,得到降秩节点矩阵和回路矩阵,然后用这两个矩阵建立描述锅炉水动力特性的连续方程组和能量方程组,最后用MATLAB进行编程求解,得到管路内的工质流量和管道压降等.用该方法计算130 t/h角管式蒸汽锅炉水动力,结果表明:该方法准确、高效,为工程带来极大的方便. Natural gas corner-tube stream boiler,has a complicated pipeline network,traditional graphic method can no longer precisely or efficiently work out hydraulic system because of graphic method＇s weaknesses. So a hydraulic calculation method based on graph theory is presented. First,singular node matrix and loop matrix are derived according to a directed graph consists of nodes and segments from the boiler hydraulic system. Second,continuity equations and energy equations are established by certain means. At last,these equations are solved by MATLAB. The new method is applied to work out the hydraulic system of a 130 t/h corner-tube stream boiler. The result shows that the new method works precisely and efficiently and brings much convenience.

关 键 词： 角管式蒸汽锅炉 有向图 水动力计算 非线性方程组

领　　域： [动力工程及工程热物理]