Why is a lubrication oil pressure low protection device installed in compressors?

Well, the lubricating oil pressure is low, so the lubrication isn’t good. It may lead to accidents. So low protection is needed.

If the lubricating oil pressure is low, an oil film cannot be formed, resulting in dry friction between the shafts; the consequences are obvious, right?:lol

Lubrication is ineffective at low oil pressure; to put it exaggeratively, what will happen if a compressor has no lubricating oil?

Prevent tile burning, as well as damage to bearings and shafts.

Why is a lubrication oil pressure low protection device installed in compressors? Answer: 1. From the perspective of equipment operation safety, low oil pressure prevents a proper oil film from forming on the bearings at various lubrication points of the compressor. In severe cases, this can lead to the carbonization of the lubricating oil, causing the compressor bearings to burn out and resulting in equipment failures that disrupt normal production ； 2. Compressors are high-speed rotating machinery that require a high level of manufacturing precision. It is also crucial to ensure that the type of lubricating oil used in the compressor, as well as its quality and viscosity, are suitable for proper operation over the long term ； 3. An oil temperature that is too high or too low in lubricating oil is also detrimental to the long-term operation of the compressor. A too-high oil temperature reduces the effectiveness of cooling the bearings, leading to an increase in their temperature ； High oil temperature reduces the viscosity of the oil, which can lead to the breakdown of the local oil film, decrease the bearing’s load-carrying capacity, and even cause the lubricant to carbonize and result in bearing damage ； If the oil temperature is too low, the viscosity of the oil increases, friction rises, the power consumption of the bearings increases, and this can also cause the machine to vibrate ； Therefore, the compressor is equipped with a low oil pressure protection device, which serves as an interlock protection mechanism for long-term operation.

I agree with what was said above; lubricant is like the blood of a compressor, and a lack of lubricant or low oil pressure can lead to equipment failures.

Could you tell me the reasons for the low pressure of the lubricating oil?

The oil filter is clogged, the oil cooler is clogged, the oil pump is damaged and cannot supply oil, and the inlet of the oil pump is clogged.

The low oil pressure interlock setting for air compressors serves as a form of protection for them; when the oil pressure drops to the set low level, the compressor shuts down automatically. If a low oil pressure interlock is not installed, when the oil pressure drops, it becomes difficult for the bearing bushings of the air compressor to form an oil film, resulting in bearing burnout.