DEVICE FOR DAMPENING VIBRATIONS OF PIPE LINE Russian patent published in 2003 - IPC

FIELD: erection of pipe lines; control of vibrations and noise of pipe lines. SUBSTANCE: proposed device has viscoelastic dampening member mounted between outer surface of pipe line and body and made in form of closed circular flexible chamber hermetically filled with dampening fluid. Closed circular flexible chamber is made in form of cylindrical envelope from cord fabric; it is freely fitted on pipe line at areas of maximum vibrational displacement. Chamber has circular parts turned inside which embrace pipe line at negative allowance. Proposed device ensures automatic adjustment of pipe line by adaptive change of rigidity parameters of vibration dampening unit. EFFECT: enhanced efficiency. 2 dwg