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你见过向日葵吗?在漫长的生物进化过程中,这种植物“练”出了一套特殊的本领,它那硕大的花盘,能够随着太阳的偏移而徐徐转动。因为它“知道”,只有这样,才能够获得更多的光照。那么,太阳能利用装置是否也能象葵花一样,自动跟踪太阳呢?回答是肯定的。本文向读者介绍的便是一台能自动跟踪太阳的开水器。它设有一套间歇式光电跟踪装置,能使反射镜自动对准太阳。它无需电机驱动,也没有复杂的减速装置,结构比较简单。图1是这台太阳能开水器的结构示意图,其反射镜面积和预热用平板集热器面积各为6平方米。在广州,晴天可日产开水220公斤。
Have you ever seen a sunflower? In the long process of biological evolution, this plant “practices” a special set of skills, and its huge faceplate can slowly turn as the sun shifts. Because it “knows”, the only way to get more light. So, solar-powered devices can also be the same as the sun, tracking the sun automatically? The answer is in the affirmative. This article introduces the reader is a water heater can automatically track the sun. It features a batch-type photoelectric tracking device that enables the mirror to automatically align itself with the sun. It does not require motor drive, there is no complicated deceleration device, the structure is relatively simple. Figure 1 is a schematic diagram of the structure of this solar water heater, the mirror area and preheat flat collector area of 6 square meters each. In Guangzhou, sunny day can produce 220 kilograms of boiling water.