Wuxi Guanya Refrigeration Technology co., ltd

Manufacturer explains what are the influences of the oil level and oil difference of the chiller?

The chiller manufacturer tells everyone that in addition to the refrigeration system, the lubricating oil system is also an important part, with its own oil reservoir and special oil cooler. Therefore, we must understand the influence of the oil level and oil difference of the chiller?

Oil level

It refers to the level of lubricating oil in the oil storage container. The oil storage containers of low-temperature chillers are equipped with oil level display devices. Generally, it is stipulated that the oil level in the oil storage container should be 5mm above and below the central horizontal line of the sight glass. The purpose of specifying the oil level is to ensure that when the oil pump is working, the amount of oil required to form an oil circulation is sufficient. If the oil level is too low, it is easy to cause insufficient oil pumps, which may cause operation failures or damage the equipment.

Oil pressure difference

It is the guarantee that lubricating oil needs to overcome the flow resistance when it flows to various working parts in the pipeline of the oil system under the drive of the oil pump. Without sufficient oil pressure difference, it is impossible to guarantee that the lubrication system of cold and low temperature chiller has sufficient lubrication and cooling oil and the power required to drive the energy regulating device. Therefore, the low temperature chiller manufacturer reminds that the oil pressure difference of the oil system It must be ensured in a reasonable range so that the moving parts of the unit can be fully lubricated and cooled, and the energy adjustment device can be manipulated flexibly.

Oil temperature

Oil temperature refers to the temperature of lubricating oil when the chiller is working. The oil temperature has an important influence on the viscosity of the lubricating oil. If the oil temperature is too low, the viscosity of the oil will increase, the fluidity will decrease, and it is not easy to form a uniform oil film, so the expected lubrication effect cannot be achieved, and it will also cause the oil flow speed to decrease, reduce the lubrication volume, and the power consumption of the oil pump. Increase; if the oil temperature is too high, the viscosity of the oil will decrease, and the oil film will not reach a certain thickness, making it difficult for the running parts to withstand the necessary working pressure, causing deterioration of the lubrication condition, aggravation of the moving parts, and failure of the chiller.

So let’s not say much, the chiller manufacturer believes that everyone also understands the impact of oil level and oil difference. In order to better use the chiller, you still need to understand these operating points carefully!
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