Solar water heating system capable of preventing overheating and pipe explosion

The utility model provides an anti-overheating and anti-pipe-explosion solar water heating system which comprises a first heat tracing band, a silicon phosphorus crystal water processor, a first temperature sensor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a second heat tracing band, a heat collection circulating pump, a water supply pump, a second temperature sensor, a fourth temperature sensor and a water supplementing tank. The system comprises a solar heat collector, a heat storage water tank, a remote control floating ball valve, an expansion tank, a water heater, a combination valve, a water outlet faucet, an automatic exhaust valve, a heat collection water supply pipe, a heat collection water return pipe, a cold water pipe, a heat collection water supply pipe branch end, a valve and a water supply pipe. According to the solar water heating system capable of preventing overheating and pipe explosion, automatic water repl