I would appreciate guidance from experts on the methods for adjusting the outlet temperatures at each stage of the three-stage reciprocating fresh hydrogen compressor
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I would appreciate guidance from experts on the methods for adjusting the outlet temperatures at each stage of the three-stage reciprocating fresh hydrogen compressor
The pressure ratio determines the temperature; with stepless airflow control, it is possible to adjust two of the three stages slightly – for example, reducing stages 1 and 2 while increasing stage 3, since the overall pressure ratio cannot be changed
What is stepless air volume control? We only have return lines – one for one, two for two, three for three – so how can it be adjusted?
First, adjust one-to-one, two-to-two, three-to-three so that the compression ratio at each stage is close； The compression ratio is one of the factors that most affect exhaust temperature ； Secondly, observe the intake manifold temperature again to ensure it remains within the designed temperature range ； Once again, the return line coolers at all levels are in normal operation. The cooling water used by these coolers can also have its temperature adjusted after cooling, but adjustment is not recommended; it is sufficient to keep them all in normal operation ； Fourth, ensure that all gas valves are functioning properly; this also affects the exhaust temperature and is one of the necessary conditions for maintaining the compression ratio.
What was said upstairs is correct, but it should be clear that the return line is mainly used to control traffic. To reduce the outlet temperature at all levels, first, it is necessary to control the inlet temperature so that it does not rise; second, slightly increasing the inlet pressure reduces the compression ratio, thereby lowering the temperature. The air valve is also one of the factors
Thank you all for your answers; I’ve learned a lot!