Bottom entering gas testing device for planar SOEC (solid oxide electrolyzer cell) stack

A technology of solid oxides and testing devices, applied in measuring devices, reactors, nuclear power generation, etc., to achieve simple operation, easy assembly, and stable testing

Active Publication Date: 2015-12-16
TSINGHUA UNIV
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Problems solved by technology

[0005] Based on the above-mentioned design ideas and the prior art not involving the design and layout of the stack bottom air intake system, it is necessary to propose a bottom air intake test device that can realize simple and stable operation and performance testing of the stack

Method used

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  • Bottom entering gas testing device for planar SOEC (solid oxide electrolyzer cell) stack
  • Bottom entering gas testing device for planar SOEC (solid oxide electrolyzer cell) stack
  • Bottom entering gas testing device for planar SOEC (solid oxide electrolyzer cell) stack

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Embodiment Construction

[0022] The present invention provides a flat-type solid oxide electrolytic cell stack bottom air intake test device, which is used for the operation and performance test of the solid oxide electrolytic cell stack. The present invention will be further described below in conjunction with the accompanying drawings.

[0023] figure 1 It is a schematic diagram of the structure of the air inlet test device at the bottom of a flat solid oxide electrolytic cell stack. The test device is composed of a support substrate 1, a ceramic support tube 2, a buffer gasket 3, a test base 4 and 4 stainless steel gas pipes 9. The shape of the test base 4 is that the upper part is a cuboid with a square cross section, the lower part is a torus, the axis of the torus coincides with the longitudinal centerline of the cuboid, and there is a circular step on the inner wall of the lower end of the torus.

[0024] like figure 2 As shown in the top view of the test base, on the top surface of the test ...

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Abstract

The invention belongs to the technical field of high-temperature steam electrolysis for hydrogen production and relates to a bottom entering gas testing device for a planar SOEC (solid oxide electrolyzer cell) stack. The testing device comprises a support base plate, a ceramic support pipe, a buffer gasket, a testing base and four stainless steel gas path pipes, wherein 4 gas flow distribution hole channels are formed in a cuboid of the testing base and communicate four base bottom gas holes with four base top gas holes pairwise. The testing device is used as a testing platform for a high-temperature SOEC stack and has the characteristics of stable testing, practicality, convenience, easiness in assembly, simplicity in operation and the like; the testing device adopts a design mode for combining the ceramic material and the high-temperature-resistant stainless steel material and has the performance of temperature resistance, heat insulation and electric insulation; the gas flow distribution hole channels formed in the testing base adopt inside roundabout design, heat in a high-temperature furnace is used directly for preheating entering gas, and the problems of gas pipe cracking and gas leakage of pipe joints at a high temperature are solved. The testing device is applicable to stable operation and performance testing of the SOEC stack.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production by electrolysis of high-temperature water vapor, and in particular relates to a test device for air intake at the bottom of a stack of flat solid oxide electrolytic cells. Background technique [0002] The high-temperature solid oxide electrolytic cell is a high-efficiency, low-pollution energy conversion device. Using it to electrolyze water vapor to produce hydrogen is a hot topic in the energy field at present, and has broad development prospects. On the one hand, it can expand the application of high-temperature nuclear reactors beyond power generation, especially the use of nuclear heat to drive high-temperature electrolysis to achieve large-scale preparation of liquid fuel for transportation and hydrogen storage, reducing CO 2 emissions; on the other hand, the stored hydrogen is operated in high-temperature fuel cell mode for power generation, which can increase the power generat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00G01D21/00
CPCY02E30/30
Inventor 于波张文强徐景明陈靖
Owner TSINGHUA UNIV
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