日光温室外保温系统设计及其对温室进光量的影响

Design of Heat Preservation System of External Surface and its Impaction on the Amount of Incident Light of Greenhouses

为改进日光温室的性能,对日光温室保温被的存放方式进行改装。日光温室保温被的改装主要在后坡焊接存放架,用来存放保温被,存放架具的角度为16.7°,便于保温被的下放。这样做一方面提高了白天保温被的卷起高度约40cm,也有可能增强冬季温室中的光照强度;另一方面提高了棚顶的通风口高度约20cm,有可能增强温室中的通风能力。同时,在夏季可以把保温被存放在存放架上,这样可以节省人力,也减少保温被的磨损,延长了保温被的使用年限,在实验所用日光温室的使用年限内可以节省18000元左右,并且节省存放保温被的空间。但是该设计也存在不足,即保温被存放在棚顶后,增加了日光温室的脊高,冬季时增加温室背面的阴影长度89cm,可能影响到后面温室的采光。本实验通过对温室中光及通气性能的测定、财力物力节省状况的研究,考察该设计的可行性,并对改进后存在的缺点提出解决方案。

In order to improve the performance of greenhouse, the location of heat protection blanket was changed. We mainly weld a storage rack in the back slope of the greenhouse, which was used to store heat. Storage at 16.7° was to facilitate the decentralization of heat protection quilt. In so doing, improved the high of heat protection quilt at 40 cm by rolling up a high degree, may also enhance the light intensity in greenhouse in winter. On the other hand improved roof vent about 20 cm height may increasing the greenhouse ventilation capacity. At the same time, heat could be stored in the storage without taking off the shelves in the summer. This saved manpower, storage space, reduced wear and tear of heat protection quilt and improved the number of years heat protection quilt used to be, so the greenhouse could save about 18000 yuan in its life time. But there were also disadvantages of the design, stored on the ceiling may increased the ridge of high of greenhouse, which could increased the shadow length about 89 cm back of greenhoused in winter. In this study, we determined the light through the greenhouse, ventilation capacity, financial and material resources to save, to examine the feasibility’s short comings and propose improved solutions.