PURPOSE: To reduce a lead of an emergency generator to be driven at the time of power interruption by disposing a thermoelectric generator having a thermoelectric generating element between at least any tubes between a circulating tube and a water supply tube, an air supply tube or a fuel supply tube.
CONSTITUTION: Thermoelectric generators 21 are respectively disposed between a circulating tube 14 and a fuel supply tube 11, between the tube 14 and an air supply tube 12 and between the tube 14 and a water supply tube 13. Each generator 21 has a high temperature side electrode 22 mounted at the tube 14 side of a high temperature side, and a pair of first and second low temperature side electrodes 23, 24 on a surface of the tube 13. A p-type semiconductor 25 is disposed over the electrodes 22 and 23, and an n-type semiconductor 26 is disposed over the electrodes 22 and 23. Thus, power can be generated during operating of a boiler.
YASUHARA KUNIOKI
YOSHIDA SHIGERU
OKIHARA MASAAKI
KURIMOTO TAKASHI
OKAI KAZUHIRO
KUMAGAI TAKESHI
INO YOSHITAKA
HAYASHI MASATOSHI
BORUKANO KK
HITACHI SHIPBUILDING ENG CO
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