Solar water heating and warming device with heating medium reversing function

The utility model provides a solar water heating and warming device with a heating medium reversing function, and relates to the technical field of solar energy. A first water tank and a second water tank are connected through high-temperature heating medium before heat exchanging and low-temperature heating medium after the heat exchanging, a first solar heating medium reversing device is arranged on the high-temperature heating medium before the heat exchanging, a second solar heating medium reversing device is arranged on the low-temperature heating medium after the heat exchanging, the first solar heating medium reversing device is connected with the upper end of a solar thermal collector, the second solar heating medium reversing device is connected with one end of a heating medium circulating pump through a water pipe, and the other end of the heating medium circulating pump is connected with the lower end of the solar thermal collector. The solar water heating and warming device with the heating medium reversing function is simple in structure and low in cost, heating medium conversion among the multiple water tanks and the solar thermal collector in a solar water heating or warming system can be easily achieved, and therefore different return circuits are formed, and multiple functions of the solar water heating or warming system are achieved.