Thermionic vacuum tube
ø 84 - 105 mm, 2 100 mm
Himin Group
Working principle
- Sunlight is captured by the coated film on the inner vacuum tubes which absorb the radiation as heat and then conduct it to the fluid inside of the inner tube. The fluid is heated to meet the heat requirement.
- Sunlight omitted by the coated film is reflected back by the coated reflection mirror on the inner surface of the outer tubes and reabsorbed which ensures the maximum heat absorbing and enhances the heat absorbtion of the vacuum tubes.
Features
- The inner and outer vacuum tubes are designed to eccentric circle; the reflection mirrors are coated on the inner surface; which has realized the 360°radiation reabsorbing considered as the latest technology in vacuum tube field.
- Concentrated water heating greatly enhances the high heating-up as well as a high water temperature








