| 摘要 |
A anticavitation system that has a pipeline piece ( 1 ) that has a contraction ( 3 ), as an example a valve. Upstream of the contraction ( 3 ) the fluid moves in a direction ( 2 ) with a P 1 , and downstream of the contraction ( 3 ) with a pressure P 2 . To avoid that the fluid pressure reached the Pv, exiting the contraction ( 3 ), the system has cavities and holes ( 4 ) located downstream of the contraction, where the pressure is stable and reaches a value P 2 . The system has a second set of cavities ( 5 ) located just outside the contraction ( 3 ). Using a connection media ( 6 ) the system feeds back the stable prssure P 2 , to the area outside the contraction ( 3 ) where the pressure reaches Pv and can produce the undesirable cavitation. For this, as it feeds back the pressure P 2 using the connection media ( 6 ) to the cavity ( 5 ), the pressure exiting the contraction ( 3 ) reaches a value P 3 that is higher than Pv. The connection media ( 6 ) can have a chamber-chamber ( 9 ) that has a surrounding ( 7 ) and the external wall of the pipeline ( 1 )
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