Fuel cell system
A fuel cell system and cell stack technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve problems such as increasing the number of reformers and complicating the structure of the power generation system
Pending Publication Date: 2022-02-08
HITACHI ZOSEN CORP
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Problems solved by technology
In addition, in the solid oxide fuel cell power generation system of Document 3, the number of reformers increases and the number of connecting pipes also increases, so the structure of the power generation system is complicated, and there is a possibility that the size of the power generation system may be increased.
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Embodiment Construction
[0026] figure 1 It is a diagram showing the configuration of a fuel cell system 1 according to an embodiment of the present invention. The fuel cell system 1 is a power generation system that uses a fuel cell to generate power. The fuel cell system 1 includes a thermal module 2 , a raw fuel supply unit 4 , and a blower 51 .
[0027] figure 2 It is a longitudinal sectional view showing the thermal module 2 . image 3 and Figure 4 respectively in figure 2 A cross-sectional view of the thermal module 2 cut at positions III-III and IV-IV in . The thermal module 2 includes: a casing 21 , a reformer 22 , a plurality of battery stacks 23 , an exhaust gas burner 24 , and a pressure vessel 25 . exist figure 2 , a portion of the structure is depicted in profile. In addition, in figure 2 In, the housing 21 is drawn with a dotted line, in image 3 and Figure 4 The illustration of the housing 21 is omitted in FIG.
[0028] The pressure vessel 25 is, for example, a hollow ...
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A fuel cell system (1) is provided with a modifier (22), a plurality of cell stacks (23), and an exhaust gas combustion burner (24). The modifier (22) has a cylindrical shape extending in the axial direction and modifies a raw fuel to generate a fuel gas. The plurality of cell stacks (23) generates electricity using the fuel gas and an oxidant gas. The plurality of cell stacks (23) is disposed side by side in the circumferential direction on the radially outer side of the modifier (22) and faces the modifier (22) in the radial direction. The exhaust gas combustion burner (24) burns unconsumed fuel gas contained in exhaust gas from the plurality of cell stacks (23). The exhaust gas combustion burner (24) is disposed on the radially inner side of the modifier (22) and faces the modifier (22) in the radial direction. Each of the plurality of cell stacks (23) is provided with a plurality of plate-like cells laminated in the radial direction. Thereby, the fuel cell system (1) can be reduced in size.
Description
technical field [0001] The invention relates to a fuel cell system. [0002] [reference of related application] [0003] This application claims the benefit of priority from Japanese Patent Application JP2019-128235 filed on July 10, 2019, the entire disclosure of which is incorporated into this application. Background technique [0004] Conventionally, various fuel cell systems have been proposed that use fuel cells to generate electricity. For example, in the solid oxide fuel cell system disclosed in Japanese Patent Application Laid-Open No. 8-506691 (Document 1), a plurality of cell stacks arranged in an annular shape are accommodated in a container, and a reformer for generating fuel gas is arranged in a container. the outside of the container. In the high-temperature fuel cell device disclosed in Japanese Patent No. 6258037 (Document 2), a plurality of high-temperature fuel cell stacks are arranged in a cylindrical shape, and a reformer is arranged in a radially inne...
Claims
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IPC IPC(8): H01M8/0662H01M8/0612H01M8/2465H01M8/249H01M8/04082
CPCH01M8/0618H01M8/0662H01M8/249H01M8/2465H01M8/04201H01M8/04014H01M8/2475Y02E60/50C01B3/384C01B2203/066C01B2203/0233C01B2203/0811C01B2203/0838C01B2203/1288C01B2203/1258H01M8/0625H01M8/0631H01M2008/1293H01M8/2432H01M8/04022H01M8/2484H01M8/243
Inventor 冈崎泰英高木义信八木厚太郎川见真人小川贵史中田谷直広奥正雄
Owner HITACHI ZOSEN CORP