Multi span large agricultural plastic film Greenhouse project tomato greenhouse with hydroponic system
- Category: >>>
- Supplier: Shandong Bs-Villa Construction Engineering Co. Ltd. [Shandong China]Shandong
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Product Overview
Description
Tomatoes are the most popular greenhouse crop in the world. With good temperature control and plenty of light, greenhouse growers in most areas of the world can get two tomato crops per year.
The multi-span film greenhouse is a type of simple, safe and convenient universal greenhouse; it uses hot-dip galvanized steel pipes as the main framework, spare parts made under the hot-dip galvanized pressuring technique.Besides its excellent insulation properties and necessary ventilation performance. We can also add sides manual rolling ventilation system to make it more practical. Due to its economics and practical, it become the most suitable greenhouse for tomato growing.
Multi-span Film Greenhouse | ||||||||
Main frame | Hot galvanized steel pipe | |||||||
Covering Material | PO Film | Suspended String | ||||||
Covering Material Lifetime | 3-5years | Grow Bag | Dutch Bucket | |||||
Column Shape | Circular | Rock Wool,Coco Husk | Expanded Clay Aggregate, Perlite | |||||
Columns | Size | Thickness | ||||||
25/32/40/60mm | 1.5-3.0mm | |||||||
Span | 8-10m | |||||||
Width Between Columns | 4-8m | |||||||
Wind Load | 0.5KN/m2 | |||||||
Snow Load | 0.3KN/m2 | |||||||
Greenhouse Frame
The greenhouse frame is made of the materials of galvanized steel, connected by screws, bolts or suitable connecters. Door,
gutters, etc. can be equipped and the roof can be pitched roof (supported by rectangular tubes) or arched roof (supported by
circular tubes). The uprights of greenhouse is made by the rectangular tubes.
gutters, etc. can be equipped and the roof can be pitched roof (supported by rectangular tubes) or arched roof (supported by
circular tubes). The uprights of greenhouse is made by the rectangular tubes.
Greenhouse Coverage
The PO film has high light transmittance,the surface has dust-proof effect, light weight,good corrosion resistance, strong heat
preservation performance,aging and high toughness.
PE, PVC and other coveing materials are also avaliable according to requriement.
preservation performance,aging and high toughness.
PE, PVC and other coveing materials are also avaliable according to requriement.
Optional system:
Cooling system (cooling pad and fan)
Shading system (inside and outside shading)
Ventilation system
Heating system (water, oil, coal heating)
Supplementary Lighting system (Philips sodium lamp)
Irrigation system (drip irrigation, mist system etc)
Seedbed ( movable, fixed )
Ventilation system ( roof and side windows)
Circulation System
Control system ( control all system running situation)
Cooling System(Cooling Pad and Fan)
Cooling pad and exhauster cooling system is the most cost-effective cooling system for large-scale production facilities. The system has the advantages of simple equipment, low cost, low energy consumption, significant cooling capacity and reliable operation. The cooling pad and exhauster cooling system consists of specialized paper cooling pad, low pressure and high flow axial fan, water circulation system, and control device. Exhausters were installed on both sides of the gable in the greenhouse or closed houses. When it is working, the negative pressure room caused by exhausters can force the hot air flow outside, water evaporation will absorb a significant amount of latent heat, to achieve reducing indoor temperature and increase the humidity.
Shading System
a.External shading system:
The primary function of the system is to cool the heat in summer, the sun would diffuse into the greenhouse to ensure that crops from strong light burns. Due to blocking a significant amount of light into the room, it can effectively reduce the accumulation
of heat in the greenhouse, drop 4°C to 6°C of room temperature.
Features:
Anti-ultraviolet, anti-hail, reduce the damage to the top of the greenhouse.
b.Internal Shading/Insulation System
Anti-fog and anti-drip: After close the inner shading system, it will form two separate lower and upper spaces in the greenhouse,this can effectively prevent the formation of the fog in the greenhouse and the dewdrops. To increase the indoor insulation effect, we can use double shade system. The curtain has two types, breathable curtain, and insulated curtain, like waterproof space cotton insulation blanket. According to the need, we choose different light transmission capacity of the shade curtain or insulation curtain.
of heat in the greenhouse, drop 4°C to 6°C of room temperature.
Features:
Anti-ultraviolet, anti-hail, reduce the damage to the top of the greenhouse.
b.Internal Shading/Insulation System
Anti-fog and anti-drip: After close the inner shading system, it will form two separate lower and upper spaces in the greenhouse,this can effectively prevent the formation of the fog in the greenhouse and the dewdrops. To increase the indoor insulation effect, we can use double shade system. The curtain has two types, breathable curtain, and insulated curtain, like waterproof space cotton insulation blanket. According to the need, we choose different light transmission capacity of the shade curtain or insulation curtain.
Energy saving and insulation: In winter and night, it can effectively prevent the heat inside the greenhouse through the radiation or heat exchange spill, thus reducing energy consumption and greenhouse operating costs.
Ventilation System
The way of opening the top window includes one-side top window drove by rack and pinion, two-sides top window drove by rack and pinion, staggered top window drove by rack and pinion, electric roll top window, side window drove by rack and pinion, electrical roll side window, sliding window and etc.
The rack and pinion system has a number of rack and pinion racks. Under the action of the drive shaft, the greenhouse windows open. Due to conform to the direction of hot air flow, it can conducive to the flow of air and summer cooling and dehumidification. This system can effectively improve the greenhouse ventilation area, reduce costs, applicable to all types of greenhouse. Ventilation rate is up to 27%.
Heating System
Our company developed a series of boilers with high-efficiency technology, which uses circular combustion technology to make combustion more thorough, while increasing the heating area of the boiler, produce much hot water in a short of time. The system can control water supply automatically by using microcomputer temperature control technology, free to adjust the water temperature. It will work even better with the plumbing air conditioning. (Energy saving, eco-friendly, healthy)
Drip Irrigation System
Drip irrigation is the most efficient and appropriate irrigation system. Instead of wetting the whole field surface, water is applied only to the plant root zone. The primary goal of drip irrigation is to apply water at the time when plants need it most and in rates needed for proper plant growth.
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