Selection of high-head, low-flow pumps
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This post was last edited by FLYTOINTER on 2010-8-4 at 22:58. Our company plans to install a high-pressure hydrogenation system with a reaction pressure of 16.5 MPa and a processing capacity of 16 m3/h. The reaction feedstock is of oil-based nature, and it is necessary to use a pump to increase the pressure from 0.4 MPa to 18 MPa. The centrifugal pump specified in the design has a head capacity of 2100 meters. Does anyone in your organization use such pumps, or is there any manufacturer that can produce them? Please provide relevant information; if possible, our company would like to visit the site for an inspection. Thank you. Hydrogenation pumps usually consist of two-stage radial split centrifugal pumps with double shells, or high-pressure piston pumps can also be used. ——by flytointer
It should be a high-pressure hydrogen feed pump, with a double-shell multi-stage centrifugal pump design! Based on your data, the density of the medium should be 854 kg/m3 ； So, a 400kW motor is selected. You can contact me to discuss the parameters of the specific measurement points in more detail. Our company welcomes inspections at any time; we also have two double-shell feed pumps under production, designed to handle oils at 400°C. Contact number: 024-89362253-8011, Lu Yan
This post was last edited by FLYTOINTER on 2010-7-20 10:07 in the Seidain High-Speed Pump forum. Hydrogenation pumps don’t use high-speed pumps, right? Hydrogenation pumps are usually double-shell, radially split multi-stage pumps. ——by flytointer
Which region are you from? Try getting in touch with Dalian Pump Factory
With a flow rate of 16 m3/h and a head of 2100 m, this is a typical pump for low flow rates but high head. It is recommended to choose Sundyne pumps, namely the Sundyne pumps mentioned on the third floor; they are gear-driven high-speed centrifugal pumps that are highly reliable. Reciprocating pumps are unreliable. Multi-stage centrifugal pumps: with such a low flow rate, it’s unclear how many impellers are needed, and their reliability is not high either. I checked, and the maximum head of the Suntain LMV type pump is roughly 2000 meters. Note that this is just an approximate figure, as I obtained it from Suntain’s sample brochure. However, 2100m is indeed too high. Why not increase the inlet pressure of the pump to slightly reduce the head? This way, there are more options available. Sident does indeed have pumps with a head of over 2000m, but they are another model – something like the HMP – and they are mainly used for fertilizers; their price is definitely much higher.
It must be a high-speed pump, with low flow rate but high head. Domestic brands such as Ebara, CASIC Institute 11, and Tiande are all suitable; Ebara is recommended
Our company uses Ebara products, and the quality is quite good. Here is the contact number of their local manufacturer: Li Qingsong (manager), 13901120364. You can get in touch with them.
It is recommended to use the high-speed pumps manufactured by Calit Ebara, as these pumps offer a good cost-performance ratio and can be used with confidence. Our company has installed several of their pumps, and the performance has been satisfactory.
After checking, Ebara has not produced high-speed pumps with a head of over 2000 meters; it would be possible to get in touch with Aerospace Institute No. 11 to see if they can handle it