利用太阳能烧开水并非是一件新鲜事。但是,通常是用太阳灶和聚光型太阳能集热器将水烧开的。这是因为聚光器可以把低密度的阳光变成高密度的阳光集中在一个面积较小的收集器上(壶、锅等),获得较高的温度,同时可减少热损面积。近年来随着太阳能真空集热管制作技术水平的提高,为开发真空管太阳能开水器创造了条件。 Using solar energy to boil water is not new. However, it is common to boil water using a solar cooker and a concentrating solar collector. This is because concentrators can convert low-density sunlight into high-density sunlight on a smaller collector (pot, pan, etc.), achieve higher temperatures, and reduce heat loss area. In recent years, with the solar vacuum tube production technology to raise the level for the development of vacuum tube solar water heater to create the conditions.