Hot water thermoelectric power generation system and method of operating the hot water thermoelectric power generation system

Abstract

The object of the present invention is to provide a hot water thermoelectric power generation system and a method for operating a hot water thermoelectric power generation system that enables natural circulation of the heat transfer medium in a heat exchanger using simple equipment. [Solution] The hot water thermoelectric power generation system of the present invention comprises a first heat exchanger that supplies a heat transfer medium to the heating section of a thermoelectric power generation system equipped with thermoelectric elements, a second heat exchanger which is the heating section of the thermoelectric power generation system, and a circulation path for the heat transfer medium between the first heat exchanger and the second heat exchanger, wherein the circulation path includes an upward path for the heat transfer medium to rise and a downward path for the heat transfer medium to descend, and the first heat exchanger and the second heat exchanger are arranged at a predetermined distance in the vertical direction so that the heat transfer medium circulates naturally in the circulation path.

Claims

1. A first heat exchanger that supplies a heat transfer medium to the heating section of a thermoelectric generator equipped with a thermoelectric element, The second heat exchanger, which is the heating section of the thermoelectric generator, The first heat exchanger and the second heat exchanger are provided with a circulation path for the heat transfer medium, The circulation path includes an upward path through which the heat transfer medium rises and a downward path through which the heat transfer medium descends. The first heat exchanger and the second heat exchanger are arranged at a predetermined distance in the vertical direction so that the heat transfer medium circulates naturally along the aforementioned circulation path. The circulation path includes a gas-liquid separator for separating the gas and liquid from the heat transfer medium discharged from the second heat exchanger, a first starting blow valve is provided between the second heat exchanger and the gas-liquid separator in the circulation path, and a second starting blow valve is provided between the gas-liquid separator and the first heat exchanger in the circulation path. The first starting blow valve is a valve that is open at startup and closed after a predetermined time. A hot water thermoelectric power generation system characterized in that the second starting blow valve is a valve that is open after a predetermined time interval of the opening and closing step of the first starting blow valve, and closed after a predetermined time interval.

2. In the hot water thermoelectric power generation system described in claim 1, A hot water thermoelectric power generation system characterized by having a third heat exchanger between the second heat exchanger and the first heat exchanger in the descending path of the circulation path.

3. In the hot water thermoelectric power generation system described in claim 1, A hot water thermoelectric power generation system characterized in that the upward path of the circulation path is provided with an insulating means between the first heat exchanger and the second heat exchanger.

4. In the hot water thermoelectric power generation system described in claim 1, A hot water thermoelectric power generation system characterized in that the descending path of the circulation path is provided with insulating means at a portion that comes into contact with the heating medium of the heat source water storage tank housing the first heat exchanger.

5. In a method for operating a hot water thermoelectric power generation system, the system comprises a first heat exchanger that supplies a heat transfer medium to the heating section of a thermoelectric power generation system equipped with a thermoelectric element, a second heat exchanger which is the heating section of the thermoelectric power generation system, and a circulation path for the heat transfer medium between the first heat exchanger and the second heat exchanger, the circulation path including an upward path for the heat transfer medium to rise and a downward path for the heat transfer medium to descend, the first heat exchanger and the second heat exchanger being arranged at a predetermined distance in the vertical direction so that the heat transfer medium circulates naturally in the circulation path, a gas-liquid separator being provided in the circulation path for separating the gas and liquid from the heat transfer medium discharged from the second heat exchanger, a first starting blow valve being provided between the second heat exchanger and the gas-liquid separator in the circulation path, and a second starting blow valve being provided between the gas-liquid separator and the first heat exchanger in the circulation path, The first starting blow valve is opened, and after a predetermined time, the first starting blow valve is closed (opening and closing step), A method for operating a hot water thermoelectric power generation system, characterized by including an opening and closing step for the second starting blow valve, which, after a predetermined time has elapsed since the opening and closing step of the first starting blow valve, opens the second starting blow valve, and after a predetermined time has elapsed since then closes it.

Images