Solid oxide electrolytic cell testing bracket

Abstract

The invention belongs to the field of high-temperature steam electrolysis hydrogen production, and particularly relates to a solid oxide electrolytic cell testing bracket. A design mode of combining a ceramic material and a stainless steel material is adopted in the testing bracket, a solid oxide electrolytic cell and a hydrogen electrode air chamber ceramic tube are sealed by using glass or glass-ceramic sealant in a high-temperature area, and a hydrogen electrode air chamber ceramic tube and a stainless steel sealing cutting sleeve are sealed by using silicon rubber sealant in a low-temperature area; the solid oxide electrolytic cell is arranged on the end face of the hydrogen electrode air chamber ceramic tube and fixed by using a pull lead to ensure that the electrode of the electrolytic cell is tightly contacted with a collector net; a hydrogen electrode collector net lead passes out of a glass sealing ring to avoid hydrogen brittleness; and a thermocouple is arranged in an air inlet tube to monitor the working temperature of the electrolytic cell. The testing bracket solves the problems of sealing of the electrolytic cell in the high-temperature area and transition sealing from the electrolytic cell to an air path system, can run stably for a long term under a high-temperature and high-humidity environment, and has the advantages of simple assembly, convenience for operation, good sealing performance and the like.

Description

technical field [0001] The invention belongs to the field of high-temperature steam electrolysis hydrogen production, and in particular relates to a solid oxide electrolytic cell test bracket. Background technique [0002] At present, the problem of energy shortage and environmental pollution caused by the extensive use of "carbon-based energy" is becoming more and more acute, and the energy structure is developing in the direction of low-carbon and non-carbonization. Hydrogen energy has the advantages of high efficiency, no pollution, and large-scale application, and is considered to be an important alternative energy source in the post-petroleum era. The realization of hydrogen economy requires large-scale hydrogen production technology as the basis. Solid oxide electrolytic cells (Solid Oxide Electrolytic Cells, SOEC) prepared by operating Solid Oxide Fuel Cells (Solid Oxide Fuel Cells, SOFC) in reverse, can electrolyze water vapor at high temperature to produce hydrogen...

AI Technical Summary

Problems solved by technology

However, the electrode leads of the electrolytic cell in this invention need to be welded to the electrodes with platinum paste before assembly, the success rate is not high, and the hydrogen electrode leads are prone to hydrogen embrittlement in the hydrogen atmosphere, and the service life of the electrode leads is short; in addition, the device The seal between the electrolytic cell and the ceramic tube of the hydrogen electrode gas chamber is sealed by squeezing the glass ring with the gravity of the ceramic ring. During the test, the ceramic ring is prone to tilt and the sealing effect will decrease; in addition, the device cannot realize the hydrogen electrode side. Accurate monitoring of atmosphere temperature

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