Solar heating intelligent heat preservation spray system

The invention belongs to the technical field of insulation devices and especially relates to a solar intelligent heat preservation spray system against the late frost in vineyards. The system comprises a main water pipeline; a solar water heater, a first water tank, a first temperature sensor, a first flow solenoid valve, a second temperature sensor and a booster pump which are installed successively on the main water pipeline; a water outlet of the second water tank is connected with the main water pipeline successively through the third temperature sensor and the second solenoid valve, wherein a connection point is located between the first flow solenoid valve and the second temperature sensor; multiple distributive pipelines which are parallelly installed at a water outlet of the booster pump; any distributive pipeline is provided with a solenoid valve and multiple nozzles; a controller which is connected with the first temperature sensor, the first flow solenoid valve, the second temperature sensor, the s