The invention provides a
solar energy heat storage
system, which comprises a heat collector and a heat storage device. The heat collector comprises a heat collection
pipe and a water tank; the heat collection
pipe comprises a heat absorption end and a heat release end; the heat release end is arranged in the water tank; the heat storage device is arranged on a heat storage device pipeline; the water tank and the heat storage device communicate to form a circulation loop; the heat collection
pipe absorbs
solar energy for heating water in the water tank; the heated water enters the heat storage device through a water tank outlet pipe so as to store heat in a
heat storage material of the heat storage device; an inner fin is arranged on an inner wall of the heat absorption end of the heat collection pipe, and is in a straight plate shape; an extending direction of the inner fin is along a flowing direction of fluid
evaporation; and the height of the inner fin is continuously increased along a direction from the heat absorption end to the heat release end. Through the arrangement, compared with the totally same
fin height, the heat exchange efficiency can be improved. According to the
solar energy heat storage
system provided by the invention, the intelligentization of heat storage
system utilization based on multi-sensor
automatic control is realized.