Design pressure of compressor lubricating oil
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The compressor I have is of the piston type, and it is equipped with an interlock device for lubricant pressure monitoring. The interlock activates when the lubricant pressure is below 0.15 MPA, and at pressures above 0.4 MPA. Is it necessary to set up an additional high-pressure alarm for the lubricant? What are the potential hazards of high lubricant pressure? I don’t quite understand it. Please explain it to me, expert – I’ll give extra points, thanks
Excessive pressure can affect the sealing performance, leading to seal leakage
For lubricating oil pressure, only a low-level alarm is usually set; I’ve never encountered a high-level alarm
Once you understand the principle of compressor lubrication, you will know what the effects of high oil pressure are.
This is not about a hazard; it’s simply that the lubricant pressure is too high, and the alarm alerts you to manually shut down the auxiliary oil pump. . . In other cases, the pressure won’t be high; there is always a bypass return oil pipe for the self-acting control valve that leads directly back to the aircraft’s fuel tank.
Since the compressor oil pressure protection has a specific pressure range – 0.15 at low pressure and 0.4 at high pressure – it’s okay if the pressure is a bit high, but it must not be low. If the pressure remains high all the time, it indicates that the return valve is not functioning properly. Bengbu Compressors hopes to be able to help you