Seeking help with the installation of a crosshead in a reciprocating compressor
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1. When installing the crosshead of a reciprocating compressor (model 4M), is there a distinction between upper and lower positions? 2. At the time of leaving the factory, the crosshead adjustment shims are already installed. According to the manufacturer’s instructions, there is no need to remove them and adjust them again. Is it necessary for us to make adjustments based on the actual conditions on site? What are the main things to keep in mind when making such adjustments? 3. What is the material at the crosshead thread? What is the material of the pressure body? How is the annealing process carried out in practice? Please give me some advice! ! :handshake
It is recommended that you consult the manufacturer’s technical department. More professional and authoritative.
This post was last edited by A pot of fragrant tea on 2016-8-29 at 17:36. 1. When installing the crosshead of a reciprocating compressor (model 4M), is there a distinction between upper and lower positions? 2. At the time of leaving the factory, the crosshead adjustment shims are already installed. According to the manufacturer’s instructions, there is no need to remove them and adjust them again. Is it necessary for us to make adjustments based on the actual conditions on site? What are the main things to keep in mind when making such adjustments? 3. What is the material at the crosshead thread? What is the material of the pressure body? How is the annealing process carried out in practice? Please give me some advice! ! 1. There is a hierarchy, and requirements are set for the contact area ； 2. Generally, no adjustment is required, but after connecting the connecting rod, crosshead, and piston rod, it is necessary to check the center height of the piston rod; if it is out of tolerance, an adjustment should be made. 3. It varies depending on the size of the compressor; 4M should be ZG320 or ZG450.
Is the orientation of the crosshead (up or down) related to the surface on which the crosshead bears force? For example, if the force-bearing surface of the crosshead is on the lower slide, then when installing it, the side with the oil-adjusting copper sheet should be placed at the bottom; otherwise, it should be placed at the top.
There are marks on the crosshead, usually in the form of triangular symbols