Title:
DIRECT CONTACT TYPE HEAT EXCHANGER FOR FUEL CELL
Document Type and Number:
Japanese Patent JP3114950
Kind Code:
B2
Abstract:
PURPOSE: To reduce a heat loss and simplify a piping work by undertaking both heat recovery from the exhaust gas of a fuel cell for use as a heat source for an absorption refrigerator, and condensed water collection for supplying to cell cooling water, using a single direct contact type heat exchanger.
CONSTITUTION: Exhaust gas from a fuel cell 1 is introduced to a heat exchanger 3 and rises to enter a heat exchange section 12. On the other hand, heat recovery water flowing from an absorption refrigerator 16 recovers heat in direct contact with exhaust gas at the heat exchange section 12 in the form of a counterflow via a heat recovering and sprinkling means 13. Heat recovery water accumulated in a heat recovery water storage section 14 is used as a heat source for the absorption refrigerator 16. Then, low temperature exhaust gas after heat exchange with the heat recovery water, further rises through the heat exchanger 3 and enters a heat exchange section 4. On the other hand, cooling water flowing from a cooling tower 9 recovers heat in direct contact with the low temperature exhaust gas at the heat exchange section 4 in the form of a counterflow via a cooling and sprinkling means 5. Then, cooling water accumulated in the section 7, together with exhaust gas condensed water, is supplied to a distilled water tank 19 via a distilled water feed pipe 20.
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Inventors:
Toshio Kameyama
Kazuo Ohshima
Tsuneo Uekusa
Shuichi Kitada
Kazuo Ohshima
Tsuneo Uekusa
Shuichi Kitada
Application Number:
JP21047692A
Publication Date:
December 04, 2000
Filing Date:
August 06, 1992
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
F28C3/06; H01M8/04; H01M8/06; (IPC1-7): H01M8/04; F28C3/06; H01M8/06
Attorney, Agent or Firm:
Takehiko Suzue