پاورپوینت انگلیسی پدیده های مخرب در شیرهای کنترل و راه کارهای مقابله با انها

 

Cavitation

Flashing

Chocked flow

Noise

Severe services treatments

Server services

Cavitation

Flashing

Chocked flow

Noise

Vena contracta

Pressure recovery factor (FL)

Pressure recovery factor (FL)

Normal condition

High recovery valves are proven to cavitation

Cavitation

Cavitation evidences

Cavitation solutions

Process control

Piping design

Staging pressure drop(anti cavitation trim)

Using Hard material

Flashing

Chocked flow

Noise

Sources of noise

1.Mechanical Vibration

2.Aerodynamic Noise

3.Hydrodynamic Noise

Noise treatment

Path treatments

Source treatments

Special trim

Larger valve size

Path treatments
Increasing of downstream pipe schedule

Diffuser

silencer

Path treatments