Double-layer inflatable membrane greenhouse
The double-layer inflatable membrane greenhouse uses transparent plastic film as the covering material, which has relatively low costs. It is also beautiful and practical. It is widely popular in facility agricultural production and is widely applied in various aspects such as vegetables, fruits, flowers, seedlings, planting production, special breeding, etc., with obvious advantages.
The film covering multi-span plastic greenhouse usually adopts a single-layer film. In the northern regions of China, multi-span greenhouse in order to further enhance the performance of multi-span membrane greenhouses, some adopt a double-layer membrane structure. The double-layer inflatable membrane technology is an excellent application of double-layer membranes.
Multi-span plastic film greenhouses can incorporate various supporting systems such as shading, multi-span greenhouse heat preservation, ventilation and cooling on both the inside and outside of the greenhouse.
The multi-span plastic film greenhouse double-layer inflation membrane technology is a new technology for enhancing the heat preservation performance of greenhouse plastic films. The double-layer inflation technology involves fixing the four sides of the plastic film, inflating the film with an air pump, and then fixing the inner film onto the greenhouse frame. The outer film is supported by air pressure. It is a structural form combining double-layer films and air layers for insulation. Experiments have shown that compared with single-layer plastic film greenhouses, double-layer inflated greenhouses can save 30% to 40% of energy.
The double-layer inflatable membrane can not only be directly used as a protective and lighting material for plastic film greenhouses, but also can be covered on multi-span glass greenhouses or other multi-span greenhouses made of hard materials. For example, covering it on the roof and walls can improve the insulation performance of the entire greenhouse. Experimental results show that the insulation performance of a single-layer glass multi-span greenhouse covered with the double-layer inflatable membrane is nearly 55% higher than that of a single-layer glass multi-span greenhouse.
The multi-span plastic film greenhouse adopts the double-layer inflated membrane technology, which is simple, inexpensive and has good insulation performance. It has good adaptability and excellent performance in northern region greenhouses.
Because of the double-layer film covering, the insulation performance of the greenhouse is also very good, which can save a lot of resources. This greatly reduces the usage cost of the greenhouse. Even though the initial construction cost is relatively high, the cost-effectiveness is very high during its use.
