▎ 摘　　要

NOVELTY - The tube has a glass outer tube (1), protective mechanism (5) and thermal insulation layer (16). An outer surface of the glass outer tube is coated with a graphene coating. An inner bottom end of the outer glass tube is fixed with a lower connecting seat. A protection mechanism is connected to the upper and lower ends of the inner glass outer tube, and convex sliders are fixed on both sides of the bottom end of the glass outer tube. The protruding sliding block is connected to the support through a limit slide rail, and the support is wrapped with a protective tube (12). A bottom end of the protection tube is wrapped with a heat dissipation mechanism (15), and the heat insulation layer is connected to the inner middle of the protection tube. USE - Graphene-coated heat collector tube applied to solar thermal power generation. ADVANTAGE - The water absorbing resin block absorbs the moisture left in the inner cavity of the glass outer pipe, so as to ensure that the component of the inner cavity of the glass outer pipe which is not aged and damaged by the moisture corrosion. The water mark and dirt formed by the water drop dropping in the inner glass outer pipe are avoided to reduce the light transmittance of the glass outer pipe, so as to play a good protective effect. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the overall sectional structure of the graphene-coated heat collector tube. Glass outer tube (1) Protective mechanism (5) Protective tube (12) Heat dissipation mechanism (15) Thermal insulation layer (16)