冬季日光温室电热膜和风机组合增温性能研究  

Study on Temperature Increasing Performance of Combined Model of the Electric Heating Films and Fans in Solar Greenhouses in Winter

作　　者：范奥华 杨有刚[1] 裴雪[1] 王孝龙 张彦钦[1,2] Fan Aohua;Yang Yougang;Pei Xue;Wang Xiaolong;Zhang Yanqin(College of Mechanical and Electronic Engineering, Northwest A＆F University, Yangling 712100, China;Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture, P.R.China, Yangling 712100, China)

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨陵712100 [2]农业部农业物联网重点实验室,陕西杨陵712100

出　　处：《农机化研究》2018年第10期118-124,共7页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(31671587);杨凌示范区产学研用协同创新重大项目(2016CXY-19);西安市科技计划项目[NC1504(3)]

摘　　要：针对北方越冬型日光温室在极端天气下需要临时增温的问题,根据热能方程,提出电热膜和轴流风机相结合的短时定向增温方式,并进行了性能试验研究。试验选取晴天、阴天和雨天等,以0.5h为1个测试周期,测试连续加热5、10min和间隔加热10min,在分别配合2台和4台风机的组合模式下,对比分析室内作物冠层平面温度分布情况。试验结果表明:在晴天和小雨天气下使用间隔加热10min和2台风机的加热策略,阴天使用连续加热10min和2台风机的加热策略,能够达到高效且均匀的增温目的,可为日光温室冬季的临时性增温提供指导。A new short-term and directional increasing temperature way with electric heating films and axial flow fans is proposed according to the energy equation,aiming at the problem that the northern winter solar greenhouses require temporary warming in the extreme weather conditions; and the performance test is also carried out.Test select sunny,cloudy and rainy day as the objects of the study,with half an hour for a test period,adopting the test mode of continuous heating for 5 minutes,10 minutes and 10 minutes interval heating,respectively combined with 2 and 4 fans,and comparatively analyzing the indoor crop canopy plane temperature distribution.The test results show that the heating strategy in sunny and rainy weather using interval heating for 10 minutes and 2 fans and cloudy days using continuous heating 10 minutes and 2 fans can achieve the purpose of efficient and uniform temperature,providing guidance for temporary greenhouse warming in winter.

关 键 词：日光温室 电热膜 风机 增温 短时定向 

分 类 号：S625.4[农业科学—园艺学]