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Plastic Greenhouse Film Greenhouse With Hydroponic System Cooling System
Product Description
The construction of film greenhouses must consider its durability. Its 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 is continuously attenuated with time. The service life of general steel structure greenhouses is more than 15 years.
As time goes on, water bubbles will form between the membranes, resulting in local stress and damage to the inner membrane. In order to reduce this kind of dew accumulation, it is generally necessary to install the suction port of the inflatable fan outdoors, because the relative humidity of the outdoor air is lower than that of the indoor air.
Professional Design Of Greenhouse
Two types of multi-span greenhouses
1.Double-layer thin-film greenhouse
It is an improved type of 8430-type thin-film greenhouse, which is widely used in northern areas. A layer of arch and double-layer film is added under the outer arch, which has good thermal insulation performance, but has slightly poor light transmission, which is suitable for flower breeding and breeding. The investment cost is RMB 160 ~ 200 per square meter.
2.Single-layer thin-film greenhouse
Conventional 8430-type multi-span greenhouse, a common thin-film greenhouse with a span of 8 meters, an opening of 4 meters, and a column height of 3 meters. This kind of greenhouse is economical in cost and can also be equipped with electric equipment such as shading and ventilation. It is widely used in southern regions. Used as a shed (spring and autumn shed) in northern areas. The investment cost is 100 ~ 150 yuan / square meter per square meter.