Connection of pipes to moving equipment
Thread Content
When connecting pipes to rotating equipment, is it necessary to install a gauge on the equipment to monitor displacement? What type of gauge should be used, and what is the amount of displacement for equipment with different rotational speeds?
Low vibration, direct connection； High vibration, connected by rubber hoses.
I really haven’t seen this before; piping is installed only after the equipment is in place.
The connection between pipes and moving equipment must be stress-free; in other words, the pipes should not exert any force on the equipment. A dial indicator can be used during installation to check whether any force is being applied, with the equipment’s displacement should be less than 0.02 mm.
The force on the pipeline should be transmitted as little as possible to the equipment; both gravity and vibrations should be prevented from reaching the equipment as much as possible
The foundation for moving equipment must be properly prepared to minimize vibration, with direct connection； High vibration; connection via rubber hose or metal bellows.
As far as I know, the steam inlet pipeline of the turbine is required to be stress-free, with spring supports being used for support; the steam pressure ranges from 4.5 to 6.0 MPa. The other equipment is fixed, and piping is then installed.