HEAT EXCHANGER FOR FUEL BATTERY SYSTEM

• Main Authors: MATSUI EIZO, IWATA SHIN, YASUHARA KENICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; ELECTRICITY; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; PUNCHING METAL; TRANSPORTING; WEAPONS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

PROBLEM TO BE SOLVED: To provide a solid oxide type fuel battery system having a heat exchanger that can suppress occurrence of scale in an outflow manifold.SOLUTION: A solid oxide type fuel battery system includes a fuel battery stack for generating power by oxidation and reduction of a fuel gas and an oxidant, and a heat exchanger 44A for performing heat-exchange between exhaust gas from the fuel battery stack and water. The heat exchanger 44A includes a heat-exchanger main body 72, and a plurality of partition plates 86A and 88 which are arranged to be spaced from each other at an interval in the heat-exchanger main body 72. The plural partition plates 86A and 88 define plural first flow paths 90 through which exhaust gas from the fuel battery stack flows, and plural second flow paths 92 through which water flows, and are provided with first and second enclosures 108, 110 for surrounding at least parts of the outflow manifolds 98 in connection with the outflow manifolds 98.SELECTED DRAWING: Figure 10 【課題】流出マニホールド内に缶石が生じることを抑制することができる熱交換器を備えた固体酸化物形燃料電池システムを提供すること。【解決手段】固体酸化物燃料電池システムは、燃料ガス及び酸化剤の酸化及び還元によって発電を行うための燃料電池スタックと、燃料電池スタックからの排ガスと水とで熱交換するための熱交換器４４Ａと、を備える。熱交換器４４Ａは、熱交換器本体７２と、熱交換器本体７２内に間隔を置いて配設された複数の仕切りプレート８６Ａ、８８と、を備える。複数の仕切りプレート８６Ａ、８８は、燃料電池スタックからの排ガスが流れる複数の第１の流路９０と、水が流れる複数の第２の流路９２と、を規定し、流出マニホールド９８に関連して、流出マニホールド９８の少なくとも一部を包囲するための第１及び第２包囲部１０８、１１０が設けられている。【選択図】図１０