Heat supply system of photo-thermal power station

The invention discloses a heat supply system of a photo-thermal power station, which comprises an outer shell and a heat absorber body annularly arranged on the outer shell, a heat absorption section of the heat absorber body is exposed on a light condensation groove part on the side wall of the outer shell, and a heat tracing system for performing salt freezing prevention and temperature detection on a plurality of heat absorption pipes in the heat absorber body is further arranged in the outer shell. The leaked liquid collecting ring box is used for carrying out independent leakage detection on each heat absorber body which is annularly arranged through a leaked liquid detection piece under the action of a partition plate; the shielding plate cover slides downwards and carries out anti-explosion sealing on the heat absorber body in a leakage area, the isolation plate is inserted into the sliding groove opening in the sealing plate so that each heat absorption pipe on the heat absorber body can be independen