Alignment of steam turbine-driven centrifugal compressor
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After the turbine drives the centrifugal compressor to operate, the alignment data exceeds the specified limits; how can it be realigned? Should the inlet and outlet pipes be disconnected to move the compressor body, or should the condition bearings be used for alignment? If the moving equipment body is briefly opened at the inlet/outlet, will this affect the pipeline stress? Is re-piping too costly?
For you, it’s best to follow along with these three questions; those who know how to do it will find a way. It seems to be a problem found on the premise that it’s still usable. It should be noted here whether the deviation exceeds the requirements specified in the instructions. For some pairs of heat-receiving equipment, there are requirements regarding the deviation between high and low levels. Additionally, this type of centering is a fine adjustment, involving a relatively wide range of adjustment points. It’s recommended to experience it on site once, and then you’ll understand. For reference.
This post was last edited by Lu Yao_zoDLt on 2022-3-29 17:12. Bro:hug::hug::hug::hug:
Indeed, I’ve never encountered this problem before. Generally, when connecting the inlet and outlet pipes, the cold-state alignment of the compressor must meet the requirements; only after being verified by multiple parties—including the manufacturer, construction contractor, supervisor, and owner—is the next step carried out. I also hope that other experienced experts can share their opinions on this matter
Turbines experience some thermal expansion; it depends on whether the turbine is single-driven or double-driven. Generally, the manual specifies the requirements for alignment in the cold state. If the alignment in the hot state is poor, it is possible to check the cold-state condition of the steam turbine’s intake, exhaust, and condensate pipelines, as well as the compressor’s process pipelines, along with the stress-free connection of the equipment