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  1. AnCheng

    A couple of questions about rotor balancing

    I watched this playlist on balancing, which doesn't mention trial weight until after identifying the heavy spot location. I did mean phase. The blower has not been balanced before. Personally I've never worked with something like that.
  2. AnCheng

    A couple of questions about rotor balancing

    Our device isn't particularly expensive to run, however my question is more about the benifits of using a trial mass. Furthemore, it makes sense that halving the mass would necissitate doubling the radius, but what is my starting point. Does the balancing machine suggest an angle, weight, and...
  3. AnCheng

    A couple of questions about rotor balancing

    In a few months, we will be overseeing an on-site rotor balancing job for one of the blowers in our plant. And since I haven’t worked on balancing before, I have a few questions: 1. What is the point of installing a trial weight? Even though the heavy spot can be calculated without it. 2. The...
  4. AnCheng

    In steam turbines, what is the difference between an inner casing and a blade carrier?

    It is my understanding that both have stationary blades, and both hold the rotor up. Is there a difference in their function in a steam turbine?
  5. AnCheng

    What is the difference between Hydrojetting and Hydromilling?

    I know that hydrojetting can be more broad in its application. But is there a difference between the two when it comes to piping? If so, how does one decide which to use?
  6. AnCheng

    Is this a valid Scope Of Work for rotor refurbishment?

    I will run it by another engineer and maybe OEM before sending the final SOW, but I want to be as thorough as possible.
  7. AnCheng

    Sealant's rating is less than turbine inlet steam

    We have used this sealantt for years, without any issues. But we don't currently have the same one so I'm evaluating another one in stock which has similar properties.
  8. AnCheng

    Is this a valid Scope Of Work for rotor refurbishment?

    We have a steam turbine rotor in our plant that we need to send out for refurbishment. Hence, I need to provide a SOW for the activity. I've never done a refurbishment SOW before, does the following make sense? SOW: - Inspection: Including but not limited to: As found clearances to be...
  9. AnCheng

    Sealant's rating is less than turbine inlet steam

    Thanks for your response, I'll look into the datasheet and maybe contact the OEM to make sure.
  10. AnCheng

    Sealant's rating is less than turbine inlet steam

    Hey there, I'm a maintenance engineer at a utilities plant. And I need to evaluate the sealant we'll use between the casing halves of the turbine. The turbine inlet steam reaches tempretures between 300-400 celsius. However, the sealant we've always used has a flash point of 150. Would this be...

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