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作 者:尹义蕾[1,2] 郑禾[3] 李明[1,2] 何芬[1,2] 丁小明[1,2] 周长吉[1,2]
机构地区:[1]农业部规划设计研究院,北京100125 [2]农业部农业设施结构工程重点实验室,北京100125 [3]北京市海淀区农业科学研究所,北京100081
出 处:《北方园艺》2016年第2期39-42,共4页Northern Horticulture
基 金:公益性行业(农业)科研专项资助项目(201203002)
摘 要:针对现有日光温室人工通风方式劳动强度大、室内气温分布不均匀等问题,在温室内安装2台或3台智能型屋脊通风设备对温室进行2段或3段智能通风,并在北京地区冬季日光温室与人工通风控制进行了对比。结果表明:在保温被揭开期间,当采用3段智能通风时,温室内空气温度最大值与最小值之差为(1.1±0.5)℃;而2段智能控制和人工控制分别为(2.3±1.1)℃和(3.8±1.3)℃。此外,应用该智能屋脊通风技术,还能将667m2均效益提高0.97万元。因此,智能型屋脊通风设备可显著改善温室内温度分布的均匀性,提高种植的经济收益。In allusion to the existing problem of labor intensity of artificial ventilation control,uneven distribution temperature within greenhouse and other issues,two or three intelligent roof ventilation devices were installed in order to compare with artificial ventilation control with two or three segmented intelligent ventilation inside a greenhouse in winter in Beijing.The results showed that during the heat insulation cover opened,the difference between the maximum and minimum values of air temperature in the greenhouse was(2.3±1.1)℃ of two-stage control range,(1.1±0.5)℃ of3-stage control range,and(3.8±1.3)℃ of manual control rang;economy benefits could significantly be increased about9,700 RMB per 667 m2 of cultivated area by using intelligent roof ventilation.Therefore,intelligent roof ventilation segment systems were used to test indoor environment of greenhouse in order to contrast analysis of manual control and intelligent mechanical ventilation effect in winter in Beijing.Therefore,uniformity of the indoor temperature and growing income could significantly be improved by intelligent roof ventilation.
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