▎ 摘　　要

NOVELTY - The system has liquid storage tank (3), solar heat collector (14) and heat exchangers (16) that are connected in order to form a nano-fluid circulation circuit. A drain port and a circulation system outlet (5) are provided at the bottom of the lower tank structure. The circulation system outlet is connected to the input end of the solar heat collector. A transmitter and a beam detector (7) are symmetrically arranged on both sides of the middle and lower part of the hollow layer of the upper tank structure. A stirring device (8) is arranged in the middle of the lower tank structure. The lower end of the stirring device protrudes from the lower tank structure and is drivingly connected to the output shaft of a motor provided outside the liquid storage tank. The transmitter (4), the beam detector and the motor are electrically connected to the controller (17) respectively. USE - Anti-precipitation solar photothermal system based on graphene nanofluid. ADVANTAGE - The comprehensive utilization efficiency is improved and provides an effective solution for the problem of poor stability of the graphene nanofluid in the actual use process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for controlling a precipitation-resistant solar photovoltaic system. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a system composition of anti-precipitation solar photothermal system. Liquid storage tank (3) Transmitter (4) Circulation system outlet (5) Beam detector (7) Stirring device (8) Solar heat collector (14) Heat exchangers (16) Solar heat collector (17)