Latest Technical Achievements "Purple Gold Tube"

Tsinghua Sunlight Co., Ltd., an international leader in the field of solar thermal energy utilization, officially announced in January 2004 its latest technology achievement in the epoch-making significance of the thermo-optical technology, the all-glass vacuum collector tube, “Zijin Guan”. Just as computer CPUs have become more and more aggressive - Centrino era, the successful development of "Zijinguan" will also cause a dramatic technological change in the solar water heater industry and even in the entire field of photothermal utilization.
The vacuum heat collection tube is the most important heat collection component in the solar water heater. As early as 1984, Tsinghua Sunshine launched the first vacuum tube heat collection tube with “AL-N/AL” coating technology in China—“Sun Music Tube”. The indicators have reached the international advanced level, and once established a new standard for the national vacuum tube manufacturing industry. As a new upgraded product of the “Sun Le” tube, the new generation “Purple Gold Tube” adopts a new type of coating material and production process, and has been maximally surpassed in the three major technical parameters of temperature increase, heat collection, and lifetime. Tested by Belgian vacuum tube tester Juha (Juha) using the German “Optosol” instrument, the solar absorption ratio of “Purple Gold Tube” is about 0.97, which is 11% higher than the national industry standard, and the solar heat emission ratio is low. At 0.06, which is 3 percentage points lower than the national industry standard, the heat collection technology is close to the theoretical limit of the heat collection performance of the vacuum heat collection tube, which reflects the highest level of technology in the solar energy industry today and has been hailed as a “Oriental Magic Pipe” by domestic and foreign professionals.
It is reported that Tsinghua Sunny has currently equipped Zijin pipes on some models of solar water heaters. With the launch of Tsinghua Sunny's world's largest vacuum tube production base, Tsinghua Sunlight will upgrade its products. It can be said that the new generation of Tsinghua Sunshine Zijin Guanhua water heater has become the flagship star of all domestic and foreign products with its high and new technology, leading the consumers to truly step into the "green bath" of the happy age.