| 摘要 |
PURPOSE:To make a structure compact, simple, and inexpensive by connecting a plurality of cooling pipes with a common manifold pipe, and arranging a radiator in the upper part of the manifold pipe and a heater in its lower part, and mounting a liquid level controller. CONSTITUTION:In cooling operation, the liquid level of a heating medium is set in the first liquid level 19 by operation of a liquid level controller 21. Heat generated in a stacked fuel cell 11 is conducted to a cooling pipe 7 through a cooling plate 6 to evaporated a heating medium in the pipe 7. The vapor is introduced into the connecting pipeline 8 by buoyancy, and introduced into a manifold pipe 10 through a header pipe 9. The vapor come out from many header pipes 9 arranged every cooling plate is gathered in the pipe 10, and rises through the pipe 10 and reaches the liquid level 19. The vapor continues to rise through the pipe 10 and reaches a tube 14 in a radiator 13. The vapor in the tube 14 is condensed by heat exchange with cooling water in a drum 15 of the radiator 13. The condensed water in the tube 14 returns to the pipe 10 by gravity, and falls through the pipe 10, and reaches the liquid level 19, and returns to the cooling pipe 7 through the pipe 10, the header pipe 9, and the connecting pipeline 8. |
