为了扩大太阳能热利用范围,我们研制了几种形式的中温集热器(本文报道的是其中一种),在不连续跟踪的情况下,达到低倍率聚光,其结构比较简单,容易商品化,目前已经有三家工厂进行小批量生产,并先后推广应用于太阳能中温熔化沥青、中温乳化沥青、中温水泥制品养护及生活用热等。 In order to expand the scope of solar thermal utilization, we have developed several forms of medium temperature heat collectors (one of which is reported in this paper). In the case of discontinuous tracking, low-magnification spotlight is achieved, and its structure is relatively simple and easily commercialized At present, there are already three factories for small-batch production, which have been popularized and applied to mid-temperature solar energy melting asphalt, mid-temperature emulsified asphalt, mid-temperature cement product maintenance and living heat.