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优化墙体结构并最大限度地发挥墙体的蓄热保温性能,对提升日光温室作物的生产水平具有重要意义。现以3种不同北墙体结构(24cm砖墙+50cm黄土+24cm砖墙即砖土结构、24cm砖墙+50cm灰煤渣+24cm砖墙即砖煤结构、37cm砖墙+10cm苯板即砖苯结构)日光温室为研究对象,通过分析典型天气下气温、北墙传热量、北墙内表面温度等指标的变化规律以及不同结构北墙的温度时空分布特点,初步评价了不同北墙体结构日光温室的保温性能差异。结果表明:砖苯结构北墙体的瞬时吸热散热能力较强,但其蓄放热持久性较差,而砖土结构复合北墙体的瞬时吸热、连续蓄热保温性较好。整体而言,砖土北墙结构日光温室在晋中地区具有较好的推广价值。
Optimizing the structure of the wall and maximizing the thermal storage and thermal insulation properties of the wall are of great significance for enhancing the crop production in solar greenhouse. Now with three different types of northern wall structure (24cm brick + 50cm loess + 24cm brick or brick structure, 24cm brick + 50cm gray cinder + 24cm brick that brick structure, 37cm brick + 10cm benzene board that brick Benzene structure) solar greenhouse as the research object, through the analysis of the typical weather temperature, the heat transfer of the north wall, the inner surface temperature of the north wall and other indicators of changes and the temporal and spatial distribution of different structures north wall temperature, preliminary evaluation of the different north wall structure Differences in thermal insulation performance of solar greenhouse. The results show that the north wall of brick-benzene structure has strong ability of absorbing heat and dissipating heat instantaneously, but its storage and storage heat persistence is poor. However, the instantaneous heat absorption of composite north wall with brick-soil structure and continuous thermal storage and heat preservation are better. On the whole, the solar greenhouse with brick wall north wall structure has a good promotion value in Jinzhong area.