Circulating water bath heating equipment

The utility model relates to circulating water bath heating equipment which comprises a reaction tank, a heating tank is fixedly connected to the outer side of the reaction tank, an electric heating wire is arranged in the heating tank, an annular pipe is fixedly connected to the top of the heating tank, and the two ends of the annular pipe are both communicated with the interior of the heating tank. An L-shaped pipe is fixedly connected to one end of the annular pipe and located in the heating tank, one end of the L-shaped pipe extends to the outer side of the heating tank, circulating pipes are arranged on the outer side of the L-shaped pipe and located between the reaction tank and the heating tank at equal intervals, a fixing support is fixedly connected to the top of the reaction tank, and a driving motor is fixedly installed at the top of the fixing support; a central shaft is rotationally connected into the reaction tank, and the top end of the central shaft is fixedly connected with one end of an outp