The main types of large-span external thermal insulation winter-warm quilt large-arched greenhouse greenhouse greenhouse construction for the soil-wall solar greenhouse low land use efficiency, summer production difficulties, on the basis of the construction of general winter warm cotton quilt big arch shed greenhouse, the big arch shed with the ability of heat preservation and overwintering production has been developed. This type of facilities using galvanized steel frame main structure, north-south direction, general span 18-32 meters, 100-200 meters long, 4.5-8 meters high. Equipped with heat preservation quilt, its heat preservation performance is significantly stronger than Winter Warm Quilt Arch Greenhouse Greenhouse Construction, service life of more than 15 years. It has the advantages of high land use efficiency (more than 80%) , large space, convenient for mechanized production, and the disadvantage of poor heat preservation compared with sunlight greenhouse, so it is suitable for producing fruit vegetables in early spring or leafy vegetables in winter.
