炎热的夏季 ,温室内即使在有遮荫网的情况下 ,温度依然较高。在大型连栋温室中 ,自然通风效果不明显 ,而且效果还随着连栋数的增多而减弱 ,室内温度会因太阳辐射而高出外界温度 10℃以上。在众多的温室降温方式中 ,空调虽然是一种效果比较好的方式 ,但其投资和运行费用过大 ,因 Hot summers, temperatures are still high even in greenhouses with shading nets. In large-scale multi-span greenhouse, the effect of natural ventilation is not obvious, but the effect is also weakened with the increase of the number of buildings. The indoor temperature will be higher than the outside temperature by solar radiation by more than 10 ℃. In many greenhouse cooling methods, although the air conditioning is a better way, but its investment and operating costs are too large due to