Hydrogen purification and temporary storage system for providing high-purity hydrogen source for hydrogen fuel cell

Abstract

The invention relates to a hydrogen purification temporary storage system for providing a high-purity hydrogen source for a hydrogen fuel cell, which comprises a condensation tank, the bottom of the condensation tank is connected with a gas inlet pipe, and the gas inlet pipe is provided with a first one-way valve; the bottom of the drying tank is connected with a first pipeline communicated with the top of the condensation tank, and a temperature transmitter is mounted on the first pipeline; the top of the temporary storage tank is connected with a second pipeline communicated with the top of the drying tank, a second one-way valve is arranged on the second pipeline, a first pressure transmitter is installed on the temporary storage tank, the top of the temporary storage tank is further connected with an air supply pipeline, and a flow adjusting valve, a third one-way valve and a flow transmitter are sequentially installed on the air supply pipeline. A first branch gas pipeline is connected to the gas supply pipeline, and a fourth one-way valve and a hydrogen concentration detector are sequentially mounted on the first branch gas pipeline; and a control station; the temporary storage system for purification can provide a continuous and stable hydrogen source for the normal work of the hydrogen fuel cell at the tail end, is simple to operate, and also improves the safety of hydrogen in the continuous preparation and utilization process.

Description

technical field [0001] The present application relates to the field of hydrogen preparation, purification and purification, in particular to a hydrogen purification and purification temporary storage system that provides high-purity hydrogen sources for hydrogen fuel cells. Background technique [0002] The industry usually uses fossil fuels such as coal, oil or natural gas as raw materials to produce hydrogen; and the hydrogen produced by the chemical reaction of active metals and water vapor contains a large amount of water vapor, and the prepared hydrogen will be affected by the concentration when it is directly used However, the utilization of hydrogen in the mixed gas of hydrogen and water vapor requires further purification and drying to obtain high-purity hydrogen. [0003] With the vigorous development of clean energy in today's society, hydrogen fuel cells play an important role in the field of hydrogen energy, because hydrogen can be converted into electricity effi...

AI Technical Summary

Problems solved by technology

At present, traditional high-pressure hydrogen storage bottles are mainly used to provide hydrogen sources for hydrogen fuel cells, and the theoretical hydrogen storage capacity of high-pressure hydrogen storage bottles is limited. When the hydrogen in the hydrogen storage bottles is consumed, the way to replenish the hydrogen source is to replace new ones. The high-pressure hydrogen storage bottle or the supplement of hydrogen through the hydrogenation equipment, this process affects the continuous operation of the terminal hydrogen fuel cell equipment, and more importantly, the hydrogen leakage during the replacement of the hydrogen storage bottle and the excessive accumulation of hydrogen in the system are still There are certain security risks

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