What is ETFE membrane structure air pillow? The air pillow membrane structure is also supported by the pressure difference between the inside and outside of the membrane surface. The air pillow and its combination can be used as an enclosure structure for roofs or facades. In order to ensure good transparency and insulation effect of the air pillow roof, ETFE film is generally used. An inner lining can be added inside the air pillow to reduce gas convection and improve its insulation effect.

At the 1993 Stuttgart International Horticultural Exposition, the spectacular temporary hangar used by the airship Lotte was filled with helium, and the hangar was composed of conical components that could be opened and closed.

The Eden ETFE membrane structure project in the UK is located in an abandoned clay mining area near Deep Austere in Cornwall, southwestern England. It cost £ 87 million and was officially opened to the public in March 2001. The world’s largest greenhouse is connected by four dome shaped buildings, with a skeleton consisting of hexagonal steel pipes covered with transparent membrane structures made of ETFE membrane material. The thickness of the membrane material is 50-25mm, consisting of three layers, and it is inflated with air pressure of 200-750Pa. If glass is used as the roof material, the lower part needs to be supported by three times the steel structure, and the weight of ETFE membrane material is only 1% of the same thickness of glass plate, which greatly reduces energy consumption during manufacturing. The service life of ETFE film material is up to 25 years. It is transparent and insulated, and air is filled between layers, so it has a very good thermal insulation effect.

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