在溴化锂制冷机的实际运行中,常常由于热源工作参数的波动、季节气候的变化和用户负荷的改变,使制冷机不能在设计工况下工作,制冷机的工作性能产生了一系列的变化。因此,我们必须了解制冷机的这种运转性能和研究它们的变化规律,从而确定和选择制冷机的调节、控制方案,使其在最 In the actual operation of the lithium bromide refrigerator, the working performance of the refrigerator often produces a series of changes due to the fluctuation of the working parameters of the heat source, the seasonal climate and the change of the user load, so that the refrigerator can not work under the design conditions. Therefore, we must understand the performance of refrigerators and research on their changes in order to determine and select the regulation of the refrigerator, control programs, so that in the most