半封闭温室夏季降温试验

Experimental Study of Summer Cooling in Semi-closed Greenhouse

半封闭温室是具有高可控性、高均匀环境条件、低通风率、正压和高效节能特点的一种新型温室。以位于北京市通州区于家务地区的连栋温室为例,对半封闭温室夏季降温效果进行了试验研究。升级改造温室原有风机,记录温室内温度、湿度、光照强度和风速等试验数据。结果表明,半封闭温室适合规模化生产需要,降温所需布置风机湿帘数量少,与普通温室相比,半封闭温室内部温度均匀度高,节能效果明显,夏季运行防虫效果好。

Semi-closed greenhouse is a new type of greenhouse with high controllability,high uniformity,low ventilation rate,positive pressure,high efficiency and energy saving. Cooling effect of semi-closed greenhouse in summer was studied combined with example of greenhouse in Tongzhou Yujiawu area,Beijing city. Existing fans were been upgraded,and temperature,humidity,light intensity,wind speed and other test data in greenhouse were recorded. Analysis results showed that semi-closed greenhouse suited for large scale production,less fans and cooling pads were needed,compared with ordinary greenhouse,temperature in semi-closed greenhouse was more evenly,energy saving effect was more obvious and anti-insect effect was better in summer.