The invention relates to a double-winch closed hydraulic system of casing lowering equipment, which comprises an oil tank and at least one closed hydraulic pumping device, and the closed hydraulic pumping device is used for providing pressurized fluid; the two closed hydraulic execution devices are driven by at least one closed hydraulic pumping device and form a first hydraulic loop with the closed hydraulic pumping device; the two winches are used for hoisting the casing pipe, and the two closed hydraulic executive devices drive the two winches to rotate respectively; the two first regulating valves are arranged in the first hydraulic loop and located between the closed hydraulic pumping device and the closed hydraulic execution device, and the two first regulating valves are configured to operably regulate the flow of output fluid of the corresponding closed hydraulic execution device so as to regulate the rotating speed of the closed hydraulic execution device. The output flow of the closed type hydraulic execution device is adjusted by adjusting the opening degree of the first adjusting valve, and therefore the execution speed of the closed type hydraulic execution device is adjusted.
本发明涉及一种套管下放设备的双卷扬闭式液压系统,包括油箱,至少一个闭式液压泵送装置,闭式液压泵送装置用于提供加压流体;两个闭式液压执行装置由至少一个闭式液压泵送装置驱动并且与闭式液压泵送装置形成第一液压回路;两个用于吊取套管的卷扬机,两个闭式液压执行装置分别驱动两个卷扬机旋转;两个第一调节阀,两个第一调节阀分别设置在第一液压回路中并位于闭式液压泵送装置与闭式液压执行装置之间,并配置成第一调节阀可操作地调节对应地闭式液压执行装置的输出流体的流量,以调节闭式液压执行装置的转速。本发明通过调节第一调节阀的开度,以调节闭式液压执行装置的输出流量,从而对闭式液压执行装置的执行速度进行调整。
Double-winch closed type hydraulic system of casing lowering equipment
一种套管下放设备的双卷扬闭式液压系统
2024-01-16
Patent
Electronic Resource
Chinese
European Patent Office | 2024
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