JUMPING-PROOF STOPPING METHOD OF DUAL-CYLINDER PUMPING SYSTEM, DUAL-CYLINDER PUMPING SYSTEM, AND PUMPING EQUIPMENT

摘要

A jumping-proof stopping method of a dual-cylinder pumping system. The dual-cylinder pumping system comprises a dual-cylinder pumping device having two master cylinders (4, 5) and a hydraulic control system of the dual-cylinder pumping device. The stopping method comprises: first, controlling the dual-cylinder pumping device to stop pumping; second, making at least one chamber among rod chambers (A, C) and rodless chambers (B, D) of the two master cylinders (4, 5) be in communication with an oil tank or a return oil path. A dual-cylinder pumping system and pumping equipment. On the basis of the dual-cylinder pumping system, a pressure releasing step is added, so that the chambers of the master cylinders of the dual-cylinder pumping system are in low pressure or zero-pressure state, unexpected jumping of the piston rod of the master cylinder caused by the high pressure oil is effectively prevented, and during maintenance of the dual-cylinder pumping system, the safety of maintenance personnel is effectively ensured.