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挠曲柱面镜是一种槽式太阳能线聚焦反射镜,采用空心模具成型,具有成型简单、表面粗糙度低和光谱特性好的优点。文中首先介绍了挠曲柱面镜的成型原理、成型工艺及其聚光特性,然后根据挠曲柱面镜的聚光特点提出了挠曲柱面聚光镜组的设计方法并给出了一种高倍聚光镜组的设计实例,最后通过河北邢台镜组的建造实例对上述设计方案进行了验证。建造成本分析表明挠曲柱面镜的规模化成本约为156元/m2,与抛物面镜的价格相比非常具有竞争力,并存在着进一步下降的空间。
Flex cylindrical mirror is a trough solar line focusing mirror, using hollow mold forming, with the molding simple, low surface roughness and good spectral characteristics. In this paper, the forming principle, forming process and focusing characteristics of flexural cylinder mirror are firstly introduced. Then, the design method of flexural cylinder condenser lens is proposed according to the focusing characteristics of flex cylinder lens, Condenser lens design example, and finally through the Xingtai mirror group construction example of the above design verification. Construction cost analysis shows that the large-scale cost of deflection cylindrical mirror is about 156 yuan / m2, which is very competitive with the price of parabolic mirror, and there is room for further decline.