Professional Multi-Span Tunnel / Arch Type PE / Po Film Plastic
Agricultural Greenhouse
Introduction
Film greenhouses are mostly dome shaped, roof and surrounding
covered with imported PEP composite long-life drip free film. This
kind of greenhouse has large span, spacious and bright room, good
ventilation effect, and provides a larger space for indoor
facilities and personnel flow. The main structure adopts the
assembled hot-dip galvanized framework, which ensures the overall
corrosion resistance of the greenhouse framework. The main arch
frame, concrete bottom beam and column are all hot-dip galvanized
rectangular steel frame. The main arch of the Bay adopts hot-dip
galvanized pipe. All accessories are connected by bolts, and a
large flow drainage channel is set at the top of the span column.
Covering materials can be combined in many ways. For example, the
vertical surface around the greenhouse can be covered with hollow
PC solar panels to enhance thermal insulation and impact
resistance. Other materials, such as float glass, can also be used
to show the effect obstinately and extend the service life. The
above plastic film can be single-layer or double-layer, etc.,
providing users with a greater choice. This film can be used as a
greenhouse to produce seedlings. It is used for the cultivation of
flowers, vegetables and seedlings. The cover materials are various.
Natural conditions determine the applicability of the greenhouse.
It is applicable to different units and different climate areas. In
other words, users can choose covering materials and supporting
equipment according to their own economic strength and use to
achieve their own use purposes.
How to prolong the life of greenhouse
1. film thickness
The thicker the film, the longer the anti aging time. The aging of
polyethylene materials is caused by ultraviolet radiation.
Therefore, it is necessary to select agricultural films with UV
absorbers and UV stabilizers. The agricultural film with UV
absorber is like a black protective layer on the film. Ultraviolet
rays are absorbed and converted into heat. UV stabilizers can
effectively prolong the aging time of agricultural films and even
repair the damaged molecular structure.
2. Climatic temperature
If the agricultural film is exposed to high temperature, especially
the part contacting with the skeleton, it is easy to form hot
spots. The agricultural film with a maximum temperature of 80 ℃ is
particularly prone to aging and damage. This is why the sunscreen
can not be directly covered on the outside of the film, and the
sunscreen directly covered on the outside of the film will
accelerate the aging of the film. In addition, a white plastic
strip or cloth strip can be used to tie the frame to the place
where the film contacts, so as to prevent the agricultural film
from being damaged by high temperature.
