The energy-saving and environmentally friendly characteristics of building curtain wall glass in the market development

The application of building curtain walls in my country began in 1984. After nearly 20 years of development, the annual output and ownership of building curtain walls in my country have ranked first in the world. However, in recent years, with the intensification of competition, market saturation, price decline, and profit reduction, all people engaged in the curtain wall industry are thinking: What kind of curtain wall does the market need?

At present, some energy-saving and environmental protection measures adopted in the design and application of building curtain walls are:

1. Insulating glass, especially LOW-E insulating glass technology

In ordinary white glass 6mm, the K value is about 5w/㎡k; in 5+6+5 ordinary insulating glass, the K value is about 2.6~3.5 w/㎡k; if LOW-E insulating glass is used and filled with argon, the K value can reach 1.6~1.8 w/㎡k. LOW-E insulating glass has obvious energy-saving and environmental protection effects. It can effectively prevent the thermal radiation of indoor heating from leaking out in winter; it can prevent the heat radiation from outside from entering the room in summer.

2. Double-layer energy-saving curtain wall

Double-layer energy-saving building curtain wall glass is mainly divided into internal circulation and external circulation systems, which have their similarities and differences. The common feature is that the greenhouse effect is formed between the double-layer glass, and the overheated air in the summer of the greenhouse is discharged outdoors, and the solar heat energy is discharged indoors in winter so that a large amount of energy is saved in both winter and summer.

In summer, it is necessary to use sunshades to prevent ultraviolet rays and strong heat radiation, and internal and external circulation systems.

3. "Thermal insulation bridge" technology

At present, my country has introduced two production process technologies and complete sets of special equipment, "injection molding thermal insulation aluminum profiles" and "insertion strip thermal insulation aluminum profiles". In terms of market demand, the market share of thermal insulation aluminum doors and windows has continued to rise in the past two years.