Regarding the switching of the new hydrogen compressor
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Let’s all talk about it – how do you switch between the new hydrogen compressors in your installations? For example, how to switch between a two-stage compressor with stepless control and one without such control? I hope everyone will share their insights based on their actual experience; I don’t want something that follows strict rules, like an operation manual – it seems rigid, hard to understand, and not very practical.
Two teams of personnel can work together to enable a disturbance-free switch between new hydrogen compressors
There’s too much to explain in detail; it involves the coordination of internal and external movements. External operations generally involve carrying out preparatory work: introducing air, water (circulating water and demineralized water), gas (nitrogen); activating systems for capturing leaks of air and liquid; turning the gears; testing the load; checking the lubricating oil pressure and temperature; opening high-level vents; starting the oil filler; and engaging the auxiliary oil pump. If it is controlled by a variable-speed system, the variable-speed system should be activated in advance. If a compressor without variable speed control is to replace a two-stage compressor that does have such control, the operator will set the signal source and the three-return-one system (we have a three-stage compression system) to manual mode, gradually increasing the load on the compressor without variable speed control. Meanwhile, they will monitor the changes in the amount of fresh hydrogen entering the system, and then reduce the set value of the manual controller for the compressor with variable speed control. Throughout this process, it is necessary to maintain a constant level of fresh hydrogen by controlling the amount of three-return-one flow. Once stability is achieved, the operator will switch the signal source to automatic mode; after checking that there are no abnormal noises at the site, the operator will shut down the main motor. That’s roughly all there is to it. Specifically, it’s necessary to take into account the characteristics of your compressor; think of the compressor as a large pump. When performing many cuts, it’s similar to pumping, only with more preparatory work involved – nothing difficult really