Inseparable vacuum coated glass and Low-e insulating glass

Vacuum coated glass is a new type of energy-saving glass, and its energy-saving effect is self-evident. China's vacuum glass technology is leading in the world, and there are already many companies in China that can mass produce.

"Vacuum" glass, as its name implies, must be because the internal vacuum is pumped and the heat transfer is isolated, so vacuum glass can have such a good energy saving effect. Then, if vacuum is drawn and the degree of vacuum reaches a certain level, can vacuum glass save energy?

The current vacuum glass products are not only vacuumed, but also the use of the original glass. Vacuum glass generally uses at least one Low-e insulating glass to achieve the desired energy saving effect and low. Heat transfer coefficient.

Why is Low-e insulating glass?

Can the vacuum glass K value be greatly reduced?

So why does the vacuum glass leave the Low-e insulating glass and the heat transfer coefficient K value rises sharply? This starts with the heat transfer mechanism of vacuum glass.

The heat transfer of vacuum glass includes radiation heat transfer, heat transfer of the support and heat transfer of residual gas. Vacuuming only solves the problem of heat transfer of the gas, and reducing the heat transfer of radiation also requires the glass with a low radiation film to function. In addition, for vacuum glass, since the heat transfer of the gas is generally negligible, only the radiation heat transfer and the heat transfer of the support are left. At this time, the heat transfer of the radiation accounts for a large weight. Therefore, Low-E glass is used. Vacuum glass is even more important.

3 , the role of Low-e insulation glass

How to quantify?

Low-e insulating glass can reduce the heat transfer coefficient K value of vacuum glass , reflecting the value of Low-E glass. At the same time, the vacuum glass chamber is in a vacuum state, which can also protect the Low-E film layer, especially offline. Low-E film layer. It can be seen that the two types of energy-saving glass are inseparable and mutually successful.