How can one better confirm that the turbine has been rotated 180 degrees through manual turning?
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Method for confirming the manual turning angle of a steam turbine
The normal operation of the barring device is primarily checked by observing the movement of the plunger and the rotation of the shaft.
It’s best to check in person during the major repair, or ask the manufacturer. It’s generally difficult to get results.
Back upstairs: The rotating parts of my* company’s equipment are not exposed. We thought of this method when we wanted to confirm it during manual turning, but in the end we couldn’t find a place to make marks. Later, I figured it out by manually turning the crank while removing the cover.
In the areas where no lines are drawn, it’s fine if it’s more or less the same
Reply to 5# z880347730: How did you try it?
I went back upstairs. Later, when I removed the cover of the engine unit in my company, I checked the gears – I could figure it out by turning the crank manually.
What was said upstairs is right – count the gears. It is usually 12 teeth, with each revolution of the rotor causing a 15-degree rotation.
Check some random sources to see if there’s a gear linear speed ratio
Back to floor 9. Hehe, usually a full turn is 15 degrees, with 24 teeth in total