Lubrication issues in hydrocracking compressor cylinders

Yes, your compression ratio is a bit high. Switching to oil-free lubrication involves not only changes to the piston components but also adjustments to the material of the cylinder liners. Get in touch with a familiar professional manufacturer; they will provide you with several options, and all you need to do is choose one of them.

When in contact with two oil-free reciprocating machines, during the gas introduction phase, the medium is not clean. The air valve is replaced frequently; all the air valves in the entire machine have been replaced, and the piston gets stuck inside the cylinder and cannot move. . It left a very deep impression

What is your oil injection volume?

First, why change to oil-free lubrication? New hydrogen is a type of dry gas among compressed gases; it has a higher friction coefficient compared to other compressor gases (wet gases). As a result, the friction between the support rings and piston rings is greater than with ordinary gases, and the wear rate of the support rings is also faster than with other gases. It constitutes a rather demanding compressed gas medium. Typically, such media are designed for oil-free lubrication or with minimal oil use, in order to ensure the longevity of the support rings and piston rings. Secondly, it is necessary to determine whether the lifespan of the current support ring can be guaranteed; also, check whether the material of the previous support rings was designed for use without oil or with minimal oil. If it was designed for minimal oil usage, lubrication must not be interrupted under any circumstances ； If it’s oil-free, it’s recommended to consult the manufacturer; personally, I would also suggest using as little oil as possible ； Once again, oil-free and low-oil lubrication designs differ in terms of the width required for the support rings; therefore, if modifications are made, the pistons must also be modified accordingly. Additionally, factors such as the size of the cylinder and the piston’s stroke come into play. It is recommended to consult manufacturers of materials used for support rings and compressor manufacturers for appropriate advice before making any modifications.

Is the output 17 or 1.7 MPa? If it is 17MPA, it is not recommended to switch to oil-free. But for level 3 compression, it should be 1.7 MPa.

1.3 MPa at the inlet is more or less acceptable, but it’s still quite low. Oil-free design, operation with less oil – that’s sufficient; there’s no need for any changes.

I don’t know why it needs to be changed. Isn’t the three-stage compression version six-cylinder? The cost of making changes would be too high. Piston rings, support rings, gaskets, and the cylinder itself – it seems like a very difficult task with many uncertain factors

Reasons for the change: First, it consumes too much fuel; second, the medium contains catalyst powder, which causes the catalyst to mix with the oil and leads to catalyst accumulation; third, it helps to save lubricating oil