Discussion on the regulation of heat generation in reciprocating compressors
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A reciprocating compressor without any common load regulation mechanisms – no bypass, no valves, no speed control; nothing of the kind, just inlet and outlet valves. Question: 1. Can the load of the reciprocating compressor be adjusted through the inlet valves? 2. Will closing the inlet valve lead to an increase in the compressor’s pressure ratio, along with a reduction in load, thereby ultimately increasing heat generation?
1. Without the above measures, how can you start your compressor? Should it be started under pressure directly? (Low pressure is feasible.) 2. No, you cannot do that. Turning the valve down too much is not in line with safe operating practices; it will increase the flow rate of the compressor. Perhaps when the valve is turned down significantly, the inlet pressure may decrease, but this can cause severe damage to the valve, so such an operation is not allowed. 3. When the inlet pressure decreases while the system backpressure remains constant, the pressure ratio increases. However, the standard-state flow rate is reduced.
If stepless adjustment is available, it is possible to control the size of the inlet valve for regulation.
API 11p provides a method for adjusting gas flow using an inlet valve, but there are limitations