Discharge temperature of the new hydrogen compressor
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According to the information I found, if the inlet pressure of the new hydrogen compressor is too low, it will result in a decrease in the outlet flow rate, an increase in the exhaust temperature of the compressor, and even damage to the gas valves. I’m not quite sure why this leads to an increase in the exhaust temperature If anyone knows, please explain it. Thank you, bonus points!
The exhaust temperature of a new hydrogen compressor depends on various factors, such as the type of compressor, operating parameters, workload, cooling system, and so on. Generally, hydrogen generates heat during compression, resulting in a higher exhaust temperature. However, by properly designing and optimizing the cooling system, the exhaust temperature can be effectively controlled to ensure safe and stable operation. If more specific information is needed, it is recommended to consult the hydrogen compressor manufacturer or professional technicians. -
The compressor referred to by the poster is likely a reciprocating compressor, which generates heat during the compression process, resulting in a high exhaust temperature. When the outlet valve is damaged, the compressed gas is repeatedly drawn in and discharged, causing the temperature of the exhaust gas to rise.
Is the poster referring to a comparison with normal import pressure? The temperature rise is fixed, but it’s higher than normal; in that case, issues such as damaged air valves need to be checked
An increased compression ratio, damaged valves, and poor inter-stage cooling can all lead to an increase in temperature
When the inlet pressure is low, the flow rate decreases, which results in higher output for the unit. At the same time, the reduced flow rate of the medium prevents effective cooling, ultimately leading to an increase in the outlet temperature.
When the inlet pressure is low and the outlet pressure remains constant, the total pressure ratio increases, while the pressure ratios at each stage (except the final stage) change little. As a result, the pressure ratio at the final stage rises, which leads to an increase in exhaust temperature; such high temperatures can very likely cause damage to the valves.
The upstairs floor already has everything. When the inlet pressure is low, the outlet pressure remains unchanged, and the total pressure ratio increases, the exhaust temperature rises. You can find the relevant formulas in just any book. API618 specifies that the exhaust temperature of new hydrogen compressors must not exceed 135℃