Vacuum tube solar water heating system with anti-explosion pipes

The utility model discloses a vacuum tube solar water heating system with anti-explosion pipes. The vacuum tube solar water heating system comprises a plurality of parallel-connection vacuum tube solar water heater groups, two anti-explosion pipes, a circulating pump, a check valve and a heating device. The head portion of the parallel-connection vacuum tube solar water heater groups is connected with one anti-explosion pipe, the heating device, the check valve and the circulating pump in sequence, and the tail portion of the parallel-connection vacuum tube solar water heater groups is connected with the other anti-explosion pipe through a pipeline. Temperature sensors of the anti-explosion pipes are arranged on a first water inlet and a second water inlet and are electrically connected with the heating device. The anti-explosion pipes are arranged on the head portion and the tail portion of the parallel-connection vacuum tube solar water heater groups so that excess force bearing of glass tubes or generation of negative pressure in the solar water heating system can be avoided, and explosion of vacuum tubes is avoided. The temperature sensors detect the temperature of the first water inlet and the second water inlet, the heating device is started when the detected temperature exceeds the preset temperature value, and explosion of the vacuum tubes due to too big temperature difference between temperature of tap water entering the vacuum tubes and temperature of tube mouths can be avoided.