| 摘要 |
The present invention relates to a regenerative boiler with an outer mounted pump and, more specifically, to a regenerative boiler capable of circulating heating water discharged from a main heat exchanger via a three-way solenoid valve, a heating water supply pipe of a hot-water heat exchanger, a heating water supply pipe of a heat storage tank, and an inner mounted pump by connecting an outlet of the heating water supply pipe of the hot-water heat exchange to the heating water supply pipe of the heat storage tank connected to the inlet of the inner mounted pump in a hot water mode. In addition, the present invention makes the outer mounted pump supply the heating water stored inside the heat storage tank directly to a heating pipe to circulate the heating water in a heating mode and makes the inner mounted pump heat the main heat exchanger by continuously circulating the heating water inside the heat storage tank inside the main heat exchanger by directly connecting the end of a heating water return pipe and the heating water supply pipe connected to an inlet and an outlet of the heating pipe respectively. An outflow temperature sensor, a supply temperature sensor, and a return temperature sensor are installed on the heating water inlet, heating water supply pipe, and the heating water return pipe of the main heat exchanger respectively. The present invention is characterized in that a control unit automatically controls the amount of the heating water passing through the outer mounted pump corresponding to a result of comparing a preset temperature difference (ΔTSET) and a temperature difference (T1-T2=ΔTmea) measured by the supply temperature sensor and return temperature sensors. Therefore, the present invention is capable of preventing a waste of energy and noise due to the idle rotation of the outer mounted pump when a user uses hot water and economically and effectively heating indoors. |
