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湖北省四湖地区冬春季气候特点是:冬季太阳高度角较北方高,日照时数较北方少;春季降雨较多。在四湖地区发展日光温室的主要障碍因子是日照时数偏少。根据这些特点,进行了适宜四湖地区的节能日光温室的设计和研制:①光环境设计:为了最大限度地采光,应做到屋面角> 14°,后坡仰角> 40°,方位角前屋面为稍偏东南向;矢高2 .8 m ,后墙高1.8 ~2.0 m ,高跨比为1∶2 .0~2 .4。②温度环境设计:温室的跨度6 ~7 m ,前后坡比5 ~6∶1 ,保温比值为1 ,遮荫比为1∶1.73 。③材料的选择:后墙结构为:内砖墙+ 空心层+ 砖墙+ 草泥;透光材料选用聚氯乙烯耐老化膜;前屋面保温材料为草帘。④增温补光措施:设置碘钨灯补光和后墙“> < ”形火道增温措施。
The climate characteristics of winter and spring in Sihu area of Hubei Province are as follows: the winter sun elevation angle is higher than the north, the sunshine duration is less than that of the north; the spring rainfall is more. The main obstacle to the development of the solar greenhouse in the Four Lakes region is that the number of sunshine hours is too small. According to these characteristics, the design and development of energy-saving solar greenhouse suitable for Sihu region were carried out. ① Light environment design: In order to maximize the daylighting, roof angle> 14 °, slope elevation angle> 40 °, azimuth front roof Slightly southeast; arrow high 2. 8 m, back wall height 1.8 ~ 2.0 m, high-span ratio of 1: 2. 0 ~ 2. 4. ② temperature environment design: the greenhouse span 6 ~ 7 m, slope ratio before and after 5 ~ 6: 1, insulation ratio of 1, shade ratio of 1: 1.73. The choice of materials: the back wall structure: brick wall + hollow + brick + grass mud; light-resistant material selection of PVC anti-aging film; front roof insulation material for the straw curtain. ④ warming fill light measures: set the iodine tungsten light fill and the rear wall “> <” shape fire way to increase the temperature.