Features:

1.The forced cyclic-type heating mode applied in large-scale solar collector engineering project enjoys very stable operation and offers effective solutions to difficult installation, bad influences for environment layout, and slow heat transfer,etc.

2.To prevent water from flowing into vacuum tube to ensure the safety and reliable operation of the system.

3.If direct-plug vacuum tube collector is used, the distinctive rubber sealing for connection between vacuum tube and water tank can effectively avoid leakage, even in large-scale engineering.

4.If glass U-tube collector is used in system, the water circulation out of order should be warned to avoid system damage caused by high temperature inside vacuum tube.

5.For superconducting vacuum tube solar collector, furring is easy to be shaped at a high temperature, especially at 75℃, which may cause negative impact on heat collecting, so the operative solutions are required for large-scale engineering project.