Multi-span greenhouse film

Greenhouse is a two-span and more than two-span greenhouse connected by a gutter, also known as inter-connected greenhouse. A large number of modern production is even more greenhouse span greenhouse, Greenhouse land utilization, high indoor level mechanized operations, less energy consumption per unit area, indoor illumination uniformity. Multi-span greenhouse film mainly film as covering material Greenhouse. A complete multi-span greenhouse films including civil greenhouse base portion, the body galvanized steel frame, exterior shading galvanized steel frame, cover material, external shading systems, internal thermal insulation system, wet curtain - fan cooling system, top and four weeks roll film windowing systems, sprinkler systems, power distribution systems, drainage systems. Greenhouse base is generally surrounded by a strip foundation, an independent internal dot foundation. Body adopts galvanized steel pipes and profiles, the use of cold galvanizing, its preservative effect is poor, usually after a year, the steel will be showing rust. Galvanized anti-corrosion effect is good, general corrosion effect can reach 5--10 years, most only have rust perforation or steel trim at the screws. If the conservation of good multi-span film greenhouse, use 10--15 years without any problems. Surrounded by top and film Greenhouse special film, best film cover for Israel gold as a film thickness of 15 silk, namely 0.15mm, Israeli films are the world's best film covering material, mostly for specific brands. More domestic use PEP profits film thickness in 0.12mm / 0.15mm majority. In addition, the use of Japanese technology FENGGU film quality is also good, and cheap. The life of the film, Israeli films generally at 5--8 years, profits membrane life and abundance valley film at 3--5 years. Greenhouse external shading and internal thermal insulation systems are mostly electric drive, electric hoist, easy to operate. Wet curtain fan cooling system, the need to deepen the detailed design based on detailed land area, in order to achieve the best cooling effect in summer. Spray the top of the greenhouse are mostly spray nozzle using upside down, water works well, very easy to irrigate crops, water conservation. Greenhouse control system more centralized electric / manual control. Multi-span greenhouse film can be used for eco-restaurant market display, sightseeing, research, breeding, planting flowers; they can be used for aquaculture, livestock breeding. Greenhouse class can achieve automatic control, equipment optional heating system (hot air heating or plumbing heating), external shading systems, internal thermal insulation sun screen system, fog or water curtain cooling system, CO2 replenishment system, fill light system and fertigation systems. Compared with single-family film greenhouse, multi-span greenhouse film has a long life, high utilization of space inside the greenhouse, uniform lighting, flexible structure, large manipulate space, high degree of automation, easy to use, saving labor, etc.