Vacuum glass for curtain wall is worth promoting

The double-layered vacuum glass for curtain wall is used as a building envelope structure and is used in Europe. Each country has its own characteristics. For example, the double-layered curtain wall of the German external circulation system is used more frequently, and the double-layered curtain wall of the external circulation system in Italy and England is used more frequently. In France, the double-layered curtain wall is used for the reconstruction of old buildings. 

Experts believe that the double-curtain wall should be suitable for China's climate characteristics, can not copy the curtain wall structure of a foreign company or a company, but must learn and digest foreign technology, and combine China's geography, climate, environment and other characteristics, develop and adapt to China's cold, cold, Hot summer and cold winter, summer hot and winter warm four areas of energy-saving, comfort, economy and other cost-effective double curtain wall, vacuum glass double wall is one of the more applicable.

The standard vacuum glass is used for the inner layer of the double curtain wall, which does not reduce the safety, and the heat transfer coefficient is lower than the heat transfer coefficient of the double wall curtain wall by about 40%. It can achieve the cold and severe cold in the "Environmental Design Standard for Public Buildings". The requirements for the heat transfer coefficient of the transparent curtain wall in the four areas, hot summer and cold winter, hot summer and warm winter, can be met especially in the hot summer, cold winter, hot summer and warm summer areas.

The double-layer vacuum glass curtain wall also improves the performance of traditional double-layer curtain walls in sound insulation, comfort, ventilation, etc. The cost of standard vacuum glass is similar to that of insulating glass. Therefore, the vacuum glass double-layer curtain wall is the first cost-effective new energy-saving technology developed in China. The curtain wall deserves our country's vigorous research and development and promotion.

Compared with ordinary glass and hollow glass, vacuum glass has many advantages, but due to factors such as technical constraints, only Japan and China now have this product line. It is understood that South Korea, France, Denmark and other countries are also developing vacuum glass, but it has not reached the level of industrial production. China is the second country in the world to have industrialized vacuum glass production technology.