The Low Vacuum Dehydration technique is mainly used for removal of moisture content from the oil which is present in three forms:
a) Dissolved Form
b) Emulsified Form
C) Free form
Heating of hydraulic oil is performed indirectly and then that is poured into a vacuum chamber where it is scattered into a very thin layer of film thereafter it vaporizes & get dissolved with gases at low temperature.
Now both air and gases that is derived from the previous process is now left to condense so that it gets separated from the oil.
Our ultimate goal of heating oil indirectly at low temperature is to ensure that there is no burn off hence no oxidation and no additional depletion of oil.
Low Vacuum Dehydration Machine works at site
Low Vacuum Dehydration Machine & Degasification – LVDH Specification are manufactured & assembled with extremely minute care & research and as per industry standards.
Comparative analysis of Vacuum Dehydration With Centrifugal water separation:
|Heating oil to Approximately between 70 to 80°C is required to efficiently remove water||Whereas in LVDH technology, the Water is removed from oil even less than < 55°C.|
|Depleting anti-oxidation additive||No additive depletion|
|Cannot remove emulsified water||Easy & total removal of free & emulsified water|
|Unable to remove low molecular weight oxidized oil fraction||Easily removes low molecular weight oxidized oil fraction|
|Unable to remove any dissolved gas||Removes the dissolved gasses very easily|
|It consumes very High energy||As compared to centrifugal system it consumes very low energy|
The extracted low weight molecular oil gets accumulated in the hydraulic fluid and settles in oil. Hence (LVDH) low vacuum dehydration technique is used to remove the extracted oil & ultimately bringing back oil to its original properties.
This technology mainly evolves around the basic fact that water boiling point is 100℃, and the vapour pressure above the water surface is atmospheric pressure but when we reduce the vapour pressure to a vacuum condition upto 750 torr, then the boiling point of water gets reduced from 100℃ to less than 55℃.
Low vacuum dehydration machines are used to :
• Removes water from oil
• Removes moisture from oil
Low Vacuum Dehydration Machine Performance Analysis
|Sr. No.||Degrees of Cleanliness||Adopting a Vacuum Dehydration Process|
|1||100%||Free and emulsified water alongside free gases|
|2||95%||of dissolved water|
|3||90%||of dissolved gases|