A pressure relief system for a reciprocating pumping system that deintensifies pressure from the pumping system and controls relief operation with the deintensified pressure. The relief system includes a relief valve connected to the pumping system and a control system that selectively opens the relief valve when an overpressure is sensed in the pumping system. To keep the relief valve in a closed position, the control system maintains a backpressure on the relief valve using the deintensified pressure. A dump valve in the control system selectively vents the backpressure so the relief valve can open. A charging system can be used for charging the control system and for reseating the relief valve.
申请公布号
WO2010080636(A3)
申请公布日期
2010.10.14
申请号
WO2009US68822
申请日期
2009.12.18
申请人
WEIR SPM, INC.;KOTAPISH, EDWARD, C.;MATZNER, MARK, D.