Final answer:
Among the given conditions, high vibration does not always require the immediate shutdown of a reciprocating compressor. High discharge temperatures, liquid in the suction separator, and high oil filter differential pressure are all conditions that typically mandate a shutdown to prevent damage.
Step-by-step explanation:
The question pertains to the operation of a reciprocating compressor, specifically the conditions under which it does not require shutdown. To address which one does not require the immediate shutdown of the compressor, let's analyze each option:
- High Gas Discharge Temperature: This condition is usually a sign of overheating, which can lead to damage or failure of the compressor's internal components. To prevent possible damage, the compressor often needs to be shut down immediately for inspection and repair.
- High Level in Suction Separator: This could indicate that liquid is being carried over to the compressor, which can cause serious mechanical issues like liquid slugging. Typically, a shutdown is necessary to address this problem before it results in damage to the compressor.
- High Oil Filter Differential Pressure: This condition indicates a restriction in the oil filter, meaning the lubrication of the compressor might be compromised. Proper lubrication is critical for the operation of the compressor's moving parts, and failure to address this condition through a shutdown could lead to significant damage.
- High Vibration: While high vibration can be a symptom of a serious issue, it is one condition under which the compressor may not necessarily need an immediate shutdown. Vibration can often be monitored and analyzed while the compressor is still running to determine the source. However, if the vibration reaches a critical level, a shutdown will be required.