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近年来推广使用蒸汽热能加工茶叶,但对蒸汽形成的冷凝水往往只利用一次,或当作废水排掉,或部分取作生活用水。既浪费水和能源,又污染了环境。蒸汽冷凝水利用的方法有两种: 直接回流利用法适用于用热设备集中的茶厂。此法是将经过一次利用后的蒸汽所形成的冷凝水,利用自身的蒸汽压力,输到一个集水箱中,从集水箱直接送到作业温度较低的用热设备中利用。只要配置的输水器进口压力和出口压力之差大于7×10~4帕,就能输出热水,回收冷凝水,回收水温保持100～110℃。分段式回流利用法大型茶厂用热设备分散,每处蒸汽压力较低,适用这种方法。分段回流是把每个用汽车间作为一个单元,设立一
In recent years, the use of steam heat to process tea has been promoted, but condensate formed from steam is often used only once, or as waste water, or partially as domestic water. It wastes water and energy and pollutes the environment. Steam condensate can be used in two ways: The direct reflux method is suitable for tea plants that are concentrated with heat equipment. In this method, the condensed water formed by the once-used steam is sent to a collecting tank using its own steam pressure, and is used directly from the collecting tank to the heat-consuming equipment with a lower operating temperature. As long as the difference between the inlet pressure and the outlet pressure of the water distributor is greater than 7×10~4 Pa, the hot water can be output and the condensate water can be recovered. The recovery water temperature is maintained at 100 to 110°C. Segmented backflow utilization method Large tea plants are dispersed with heat equipment, and the steam pressure is low at each location. This method is applicable. Subsection return is to set up each car room as a unit.