Hydrogen generating and refilling system and method capable of refilling hydrogen fast

Abstract

The hydrogen generating and refilling system and method capable of refilling hydrogen fast belongs to the field of regenerable clean energy source technology. The system includes water electrolyzing and natural gas reforming hydrogen-making equipment, hydrogen purifying equipment, hydrogen pressure raising equipment, hydrogen storage tank and hydrogen refilling equipment. The fast hydrogen refilling process includes making hydrogen via electrolyzing water and reforming natural gas; purifying hydrogen to eliminate O2, CO, sulfide and water; compressing hydrogen in a diaphragm hydrogen compressor; and refilling hydrogen via the hydrogen refilling equipment to fuel cell or hydrogen-burning internal combustion engine in automobile. The present invention has the advantages of high hydrogen refilling efficiency, high energy source utilization rate and high safety.

Description

technical field [0001] The invention belongs to the field of renewable, clean and environment-friendly new energy, and in particular provides a hydrogen production and refueling station system capable of quickly filling hydrogen and a method thereof. Background technique [0002] At present (in the absence of a hydrogen production and refueling station) to fill hydrogen for fuel cell electric vehicles and hydrogen transport tankers, the method adopted is to purify the hydrogen produced by electrolysis of water or reforming natural gas through a purification device, and then directly The hydrogen is stored in a large storage tank with a pressure of 1MPa to 4MPa and stored at low pressure. When filling the car with hydrogen, use a hydrogen compressor to extract the hydrogen from the storage tank, boost the pressure to 15MPa~20MPa, and directly pump it into the fuel cell vehicle or hydrogen transport tanker to fill the hydrogen. [0003] This system is composed of main equipme...

AI Technical Summary

Problems solved by technology

Second, the hydrogen compressors currently in use all have a pressure below 20MPa and a flow rate of 200Nm 3 Below, this will result in adding 650Nm to the fuel cell vehicle 3 It takes 3-4 hours to fill the hydrogen transport tanker with 2000Nm 3 Gas needs more than 10 hours, and for fuel cell vehicles, the 20MPa pressure is not enough to fill the vehicle's gas cylinders, which greatly reduces the driving range of the vehicle

Furthermore, there is no dedicated hydrogen filling machine in the current system, and the flow, pressure, temperature, and stress deformation cannot be constantly monitored and measured, so the safety and commerciality of the system cannot be guaranteed.

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