What Are the Common Steam Turbines Support Needs?

What Are the Common Steam Turbines Support Needs?

Steam turbines have been around for a long time. Since the 1880s, these units have been used for electricity production. Here are common steam turbines support needs.

Maintenance and Operation Support

For a steam turbine to operate and perform adequately, there are several things that need to be monitored. For instance, proper function requires correct steam pressure at the turbine inlet. Apart from that, there also needs to be high steam quality. This means the steam that drives the turbine must not have any condensate entrapment. This will help to ensure high turbine reliability.

Monitoring of Pipe Expansion and Contraction

There must be a team that monitors steam piping to ensure that there will be no excessive forces overloading the turbine flanges. Forces in steam piping may originate from pipe dead weight, expansion from heat, thrust, and the spring rate resulting from different types of expansion joints.

Supply and Exhaust Line Support

It’s important to ensure that the steam piping provides full-line steam pressure at the turbine inlet. The technicians working in this area need to ensure that they calculate the supply line size not only for the load but also to cover for pressure drops resulting from the length of pipe and system components like valves and fittings. It’s important to understand that any pres­sure loss in the supply line will have an impact on the performance of the turbine.

Installation Checks

Improper installations can cause several problems. For instance, if certain components are not installed properly, the following issues may be noticed:

  • Early bearing failure
  • Degradation of the nozzle
  • Failure of turbine blades
  • Premature coupling failure

It’s also important to note that all steam piping needs turbines support to cover for the dead weight of the pipe. In most instances, the two types of support used are rigid and spring designs. These supports will support the piping, but they will not aid in guiding the pipe for expansion reasons. On the other hand, you can use rigid support to restrict the movement of piping in conjunc­tion with the expansion joints.

For steam turbines to operate optimally, it’s important to note the best practices and to understand turbines support needs. For instance, you must ensure that proper steam quality is delivered to the turbine. Apart from that, the supply and exhaust lines need to be sized properly. Lastly, steam piping needs to be properly supported. To learn more, contact Advanced Turbine Support today.

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