Selection of oil pump for lubrication station
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For the lubrication stations in large-scale units, what type of pumps are generally used for oil pumping? I would appreciate some guidance! !
Based on the flow rate and head requirements, screw pumps or gear pumps are generally chosen
Both the air compressor and the oil pump of our catalytic unit use screw pumps! !
Three-screw pumps are used in the vast majority of large-scale units, as they offer strong pumping capacity, a stable flow rate, and low noise.
Based on current usage, screw pumps are the preferred choice, followed by centrifugal pumps.
Screw pumps or gear pumps are generally chosen, usually in accordance with API614.
Generally, it is a screw pump or a gear pump, which provides stable flow rates. Not bad.
Screw pumps are more suitable; they have three screws, produce less vibration, offer a wide range of flow rates, and have low internal leakage. Their price is slightly higher than that of gear pumps. Gear pumps, on the other hand, have higher internal leakage and more vibration
Screw pumps are preferred, with gear pumps as a secondary option.
Currently, specialized fan manufacturers such as Shenyu and Shangyu mainly use screw pumps, and Tianjin’s screw pumps are quite good.
Screw pumps are used in both the compressor lubrication station and the feed pump lubrication station of the refinery
Screw pumps and gear pumps are generally used; based on practical experience, screw pumps are preferable, and triple-screw pumps are recommended
Our factory usually chooses gear oil pumps
Screw pumps are generally used more often, but several units in our organization use centrifugal pumps (mainly because there are too many pump manufacturers in areas such as Shenyang; through various channels, they have managed to gain a dominant position in oil station pumps)
Choose a gear pump! ! ! ! ! ! ! ! ! ! !
To summarize briefly: 1. Screw pumps are the most commonly chosen, mainly due to their self-priming capability and good stability; essentially, screw compressors are used in the oil supply systems of large turbine-based compressors. 2. There are relatively fewer options for gear pumps; gear pumps are more commonly used in small ventilators and reciprocating compressors. In particular, the shaft pump (main oil pump) in domestic small reciprocating compressors is mostly a gear pump.
Screw pumps, gear pumps, and centrifugal pumps are all used, but screw pumps are more commonly employed and offer better performance
Oil pump stations use a variety of pumps; generally, these are positive displacement pumps such as gear pumps, screw pumps, and vane pumps. I personally recommend vane pumps, as they have higher efficiency compared to gear pumps, and their spare parts are cheaper. In gear pumps, wear of the two gears can lead to a decrease in efficiency, but this does not happen with vane pumps.
For lubricating chemical processing equipment, gear pumps are commonly used as they are easy to control and maintain; the model is selected according to the user’s requirements
Our company uses screw pumps.