|Place of Origin:||Sichuan,China|
|Minimum Order Quantity:||Negotiation|
|Packaging Details:||standard package|
|Delivery Time:||15 word days|
|Payment Terms:||L/C, D/A, D/P, T/T, Western Union, MoneyGram|
|Supply Ability:||500000 squre meters per month|
|Product Name:||Agricultural Breeding Tunnel Plastic Greenhouse For Commercial Sale||Venlitation:||Roof Venlitation|
|Stucture:||Steel Frame||Application:||Animal Breeding|
plastic tunnel greenhouse,
polythene grow tunnel
Agricultural Breeding Tunnel Plastic Greenhouse For Commercial Sale
The breeding greenhouse can target many animals, such as broiler chickens, meat ducks, beef cattle, white geese, fish, shrimp, scutellaria baicalensis and many other animals. The big advantage of greenhouse breeding is that it can overcome the impact of environmental factors on animal breeding, so that animals can Grow in a short time, while guaranteeing a certain quality. In terms of economic benefits, greenhouse farming can be said to have doubled. The essence of greenhouse farming is to provide suitable temperature, humidity, light, as well as water and environmental sanitation.
|Width||6-10m(8m is standrad)|
|Top Height||4.8-6m(Depend on width)|
|Covering material||PEP film(0.08/0.10/0.12/0.15/0.2mm)|
|Framework||Hot galvanized steel pipe|
|Basic equipment||Framework, ventilation on both sides and roof|
1. Light transmission
The greenhouse is a daylighting building, so the light transmittance is a basic index for evaluating the light transmittance of the greenhouse. The light transmittance is the percentage of the amount of light that penetrates into the greenhouse and the amount of outdoor light. The light transmittance of the greenhouse is affected by the light transmittance of the light-transmitting cover material of the greenhouse and the shadow rate of the greenhouse skeleton. Moreover, the light transmittance of the greenhouse also changes at any time with the different angles of solar radiation in different seasons. Greenhouse light transmittance has a direct effect on crop growth and selection of crop varieties. Generally, the number of plastic greenhouses is 50% ~ 60%, the light transmittance of glass greenhouses is 60% ~ 70%, and sunlight greenhouses can reach more than 70%.
2. Thermal insulation
Heating energy consumption is the main obstacle to the operation of the greenhouse in winter. Improving the thermal insulation performance of the greenhouse and reducing the energy consumption are the direct means to improve the production efficiency of the greenhouse. The insulation ratio of a greenhouse is a basic indicator for measuring the insulation performance of a greenhouse. Greenhouse insulation ratio refers to the ratio of the area covered by the transparent material of the greenhouse with a small thermal resistance and the area covered by the greenhouse envelope structure with a large thermal resistance. The larger the insulation ratio, the better the insulation performance of the greenhouse.
The thermal insulation performance of the greenhouse is very good. Heating energy consumption is the main obstacle to the operation of the greenhouse in winter. Improving the thermal insulation performance of the greenhouse and reducing energy consumption is a good way to improve the greenhouse production efficiency.
Greenhouse construction must consider its durability. Greenhouse durability is affected by factors such as the aging resistance of greenhouse materials and the carrying capacity of the main structure of the greenhouse. In addition to its own strength, the durability of light-transmitting materials is also manifested in the fact that the light transmittance of the material continuously decreases with time, and the degree of attenuation of the light transmittance is a decisive factor affecting the service life of the light-transmitting material. The service life of general steel structure greenhouses is more than 15 years. The design wind and snow loads are required to meet a large load once in 25 years; the simple greenhouse with bamboo and wooden structure has a service life of 5 to 10 years, and the design wind and snow loads are used to encounter a heavy load once every 15 years.
Due to the long-term operation of the greenhouse in high temperature and high humidity environments, the surface corrosion of components has become one of the important factors affecting the service life of the greenhouse. Steel structure greenhouse, the main structure of the force is generally thin-walled steel, and its own corrosion resistance is poor. In the greenhouse, the hot-dip galvanized surface must be used for anti-corrosion treatment. The thickness of the coating reaches 150 ~ 200 microns, which can guarantee 15 years of use life. For greenhouses with wooden or reinforced welded truss structures, surface anticorrosive treatment must be guaranteed once a year.