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为了减少船用蒸发器的重量和尺寸,应强化其部件内部过程,此时应增大蒸汽空间和蒸发镜面的单位负荷,而单位负荷的增大取决于蒸发过程的效率。然而,由于汽轮机动力装置蒸汽参数的提高,要求大大改善蒸馏水的质量而使分离器的工作复杂化。国内建造的较好的真空蒸发器的特性分析表明:在蒸汽空间高度为0.8～1.0米时,蒸发镜面的单位负荷为8000～14000米~3/米~2×小时。某些外国公司近年来制造的真空蒸发器达到较大的数值,例如巴克利和泰勒公司允许蒸发镜面负荷为2500米~3/米~2×小时和蒸汽空间负荷——超过60000米~3米/米~3×小时。
In order to reduce the weight and size of marine evaporators, the internal processes of the components should be strengthened. In this case, the unit load of steam space and evaporation mirror should be increased, and the increase of unit load depends on the efficiency of the evaporation process. However, the work on the separator is complicated by the need to greatly improve the quality of the distilled water due to the improvement of the steam parameters of the steam turbine power plant. The analysis of the characteristics of a good vacuum evaporator built in China shows that the unit load of the evaporation mirror is 8000-14000 m 3 / m 2 × h when the height of the steam space is 0.8-1.0 m. In recent years, some foreign companies have made larger numbers of vacuum evaporators. For example, Barkley and Taylor allow evaporative mirror loads of 2,500-3 / 2 hours and steam load-more than 60,000-3 meters / M ~ 3 × h