The system causes sequential shutdowns, but not the H compressor
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This post was last edited by sunjl1981 on 2013-1-6 at 23:33. When the system shuts down in a cascading manner, the H-pressure compressor also shuts down as a result; this means that the system has to be restarted. It would be great if there were a way to prevent the H-pressure compressor from shutting down in this manner. My idea is: when the system stops, 1) the vent valve on the hydrogen main pipe should be opened, 2) the system should be isolated from the hydrogen supply, and 3) nitrogen should be injected in front of the hydrogen pressure compressor so that the compressor can continue to operate. Additionally, see IMG_4457.jpg (91.82 KB), dated 2008-2-19 at 14:16. © This article belongs to ccedrj123. Is this approach feasible in actual production? # &
This idea is feasible but unreasonable – it is unclear whether hydrogen can be effectively isolated from the system while parking, and the amount of nitrogen required for replenishment is too large; it is highly uneconomical.
The amount of nitrogen used for supplementation isn’t that significant; the key is to open the system’s return valve in a timely manner. As for how much to open it, positive pressure must be maintained in front of the hydrogen compressor at the moment when the system is isolated from the hydrogen main pipeline
Is your buddy from Haihua? I replaced the ion exchange membranes for you last year; I’m not sure what kind are being used now. The situation you mentioned is achievable, but the investment required is too large. Think about it: nitrogen consumption is one aspect, but what’s more important is the investment in the control system.