A High Insulation Solar Greenhouse‘Double Film-Double Blanket-Double Chamber’—Suitable for Usage In Extremely Cold Region
ZHOU Changji1 ，SUN Zhaowen2 ，XU Zhe2
1 Academy of Agricultural Planning and Engineering，MARA，Beijing 100125，China；2 Mudanjiang Zhongheng Technology Co.，Ltd.，Mudanjiang 157000，Heilongjiang，China
Abstract：In order to further improve the light and temperature performance of Chinese solar greenhouse，and enable the over winter vegetable production in areas north of 50° N with extreme temperature below -40 ℃，yet having no auxiliary heating，this paper proposed a ‘double film-double blanket-double chamber’（D-FBC）high insulation greenhouse after reserch innovation．The lighting roof angle of the greenhouse reached 53.82°，and horizontal projection ratio of front and rear roofs was less than 1∶1．The overall lighting and insulation capacity of the greenhouse were significantly improved．At the same time，the supporting greenhouse basic insulation + lighting surface ‘double film-double blanket-double chamber’thermal insulation + back wall water column passive heat storage + gas water heat exchange ground soil active heat storage and release system all had helped maintaining the greenhouse indoor temperature above 9 ℃，even when the outdoor extreme temperatures was below -48 ℃．Thus，safe over winter vegetable production in Tahe County，Heilongjiang Province，at 52° north latitude was successfully realized．
周长吉，孙兆文，许喆. 设施蔬菜产业发展（四）——一种适用于高寒地区的“双膜双被双腔”高保温日光温室[J]. 中国蔬菜, 2023, 1(12): 1-13.
ZHOU Changji，SUN Zhaowen,XU Zhe . A High Insulation Solar Greenhouse‘Double Film-Double Blanket-Double Chamber’—Suitable for Usage In Extremely Cold Region. China Vegetables, 2023, 1(12): 1-13.
