A parahydrogen enrichment device suitable for large flow and high pressure conditions

Abstract

The invention provides a parahydrogen enrichment device suitable for high-flow and high-pressure conditions, including a temperature detection chamber, a thermostat line protection tube, a double-chamber connecting pipe, a parahydrogen enrichment chamber, a heat exchange rod, a pressure-holding filter cap, Input interface, cooling pipe, output interface, catalyst and temperature display; the temperature detection chamber is connected with the cooling pipe, the double-chamber connecting pipe and the thermostat circuit protection pipe; the double-chamber connecting pipe connects the temperature detection chamber and the parahydrogen enrichment chamber; The hydrogen enrichment chamber is in the form of a sleeve, equipped with a heat exchange rod and an outer tube, the bottom is connected to a double chamber connecting pipe, and the top is connected to an output port; the catalyst is filled in the annular cavity between the heat exchange rod and the parahydrogen enrichment chamber; The exchange rod is installed at the bottom of the parahydrogen-enrichment chamber; the pressure-holding filter cap is provided with a filter layer and a pressure-retaining layer, and is installed on the top of the heat exchange rod. The bottom is provided with filter air holes, and the top side wall is provided with pressure-holding air holes. The application of the technical proposal can improve the heat transfer effect and maintain a certain pressure to improve the conversion efficiency of large flow.

Description

technical field [0001] The invention relates to the field of hydrogen production equipment, in particular to a parahydrogen enrichment device suitable for large flow and high pressure conditions. Background technique [0002] Hydrogen is a mixture of orthohydrogen and parahydrogen, and its physical properties are a colorless, odorless, transparent gas. The difference between orthohydrogen and parahydrogen is that the hydrogen molecules are two different spin isomers, which are completely the same in chemical reactions and slightly different in physical properties. When hydrogen is at room temperature or higher, the mixing ratio of positive and secondary hydrogen is 3:1, which is called normal hydrogen or standard hydrogen. As the temperature decreases, positive hydrogen will spontaneously flow to Parahydrogen conversion, but at a significantly slower conversion rate than in the presence of a catalyst. Generally, when preparing liquid hydrogen, it is necessary to start the ...

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Problems solved by technology

[0007] None of the methods contained in the above materials can achieve a good heat exchange effect, and the parahydrogen conversion effect under high flow and high pressure is not good enough, and the temperature of the hydrogen gas entering the conversion chamber cannot be detected, so it is impossible to accurately determine the reason for the decrease in efficiency

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