Complete Multi Span Plastic Film Greenhouse With Heating System
Cooling System
Product Description
There are two main types of multi membrane greenhouses: double
membrane greenhouses and single membrane greenhouses. The two
characteristics of multi span film greenhouse are simple structure
and flexible form. Aging resistance, main structure bearing
capacity of greenhouse, etc. The maintenance frame structure of
multi span film greenhouse needs regular maintenance. Covering
materials should improve the ability of crack resistance and ageing
resistance, resist wind and sun protection, and achieve the purpose
of light transmission and thermal insulation. Therefore, good
reinforcement measures must be taken to repair the leakage in time.
Professional Design
1. light intensity
The sunshine in greenhouse is obviously lower than that in open
field. The indoor high average illuminance generally does not
exceed 80% of the natural light.
2. temperature variation
The temperature in greenhouse is higher than that in open field all
the year round, but the number of wintering in greenhouse is
obviously reduced. Solar greenhouse can produce sparse vegetables
all the year round.
3. air humidity
The absolute humidity and relative humidity of the air in the solar
greenhouse are generally higher than that in the open air.
4. Ventilation
Ventilation should be carried out in a warm room in time. The
change of CO2 concentration in greenhouse is remarkable.
5. soil environment
The greenhouse soil temperature is high, the humidity is big, the
soil microorganism activity is strong. Therefore, the
transformation of soil nutrients and the decomposition of organic
matter in greenhouse are very fast.
Special greenhouse film
Because the temperature inside the double-layer anti-droplet
greenhouse film is different from the temperature outside the
greenhouse, water vapor will be formed. Water vapor forms a water
film on the surface of the shed film and is left along the film to
achieve the effect of no water droplets.
Its thermal insulation effect is better than grouting film. It is a
cost-effective agricultural film with excellent thermal insulation.
It is suitable for greenhouses such as vegetables, strawberries and
fruit trees.
