Selection of low-flow hydrogen feed pump
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For hydrogen high-pressure feed pumps with a capacity of less than 5 cubic meters per hour, what kind of pump is suitable?
High-pressure diaphragm pump/plunger pump； High-speed centrifugal pumps are all good choices~~~
With low flow rate and high pressure, considering only these two factors, a piston pump or diaphragm pump is a more suitable choice
The feed pump requires a steady supply of material, and for this reason piston pumps or diaphragm pumps are not suitable. High-speed pumps or rotary shell pumps are recommended
You can take a look at the high-pressure pump we developed for SWRO – there are no issues with flow or pressure pulsations, and it is actually quite suitable for water injection after hydrogenation. Since it is a plunger pump, using it as a hydrogenation feed pump makes leak handling rather troublesome, so only methods similar to Hammelmann’s can be employed. The information can be found on the website *c-flow.cn
The medium temperature is also estimated to be over 100 degrees, with an outlet pressure of around 10 MPa; in this case, a piston pump with 3 pump heads can be used.
Thank you to all the experts for their advice. We have currently chosen the three-plunger pumps made by Chongqing Pump Co., and to address the leakage issue, we have added flushing stations; however, leakage seems inevitable. Can a rotary vane pump be used? Which company in China is good at this?
There are many cases of using pitot tube pumps (vortex shell pumps) for hydrogenation feed – what is the head in meters? For this pump, if the head requirement is below 900 meters, domestic Zhejiang Shengfa venturi pumps (rotary shell pumps) can be used; those imported from the United States can achieve a head of up to 1300 meters. Please contact me via WeChat (the phone number is the same): 13162294857
Please provide manufacturers with experience in using pitot tube hydrogen feed pumps, as well as information on their operating conditions and uptime. Thank you!