| 摘要 |
PROBLEM TO BE SOLVED: To rapidly increase the water temperature in a water feed line. SOLUTION: This water electrolyzing system 1 has a cell group 2 consisting of a plurality of water electrolyzing cells C1 to C8, a circulating water feed line 3 having a plurality of connecting pipes 16 for connecting two adjacent cells C1 and C2, C2 and C3,..., a solar battery 5 as the power source of the cell group 2 and a DC/DC converter 6 for adjusting the power of the battery 5 and feeding the power to the cell group 2. The first water electrolyzing cell C1, solar battery 5 and converter 6 are connected to the system 1 in series to constitute a water heating circuit 20. When the water temperature in the line 3 is raised, the first, eleventh, fourth to tenth switches S1, S11, S4 to S10 are closed to close the heating circuit 20, the voltage of the power supplied from the battery 5 through the converter 6 is lowered, the current is increased, and then the power is supplied to the first cell C1 to heat the cell C1.
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