| 摘要 |
A free piston fracturing pump comprises a hydraulic station (12), multiple free piston type hydraulic pumps (18), and a drive liquid pipeline. The hydraulic station (12) is used for providing high-pressure drive liquid. Each free piston type hydraulic pump (18) comprises a cylinder (20) and a free piston (22) movable in the cylinder (20). The cylinder (20) comprises a drive liquid inlet (24), a drive liquid outlet (26), a fracturing liquid inlet (28), and a fracturing liquid outlet (30). The drive liquid pipeline is in fluid connection between the hydraulic station (12) and the drive liquid inlet (24) as well as the drive liquid outlet (26), so as to drive the free piston type hydraulic pump (18) by using the high-pressure drive liquid, and therefore fracturing liquid in the free piston type hydraulic pump (18) is pumped out via the fracturing liquid outlet (30). A plurality of control valves (44) for controlling drive liquid to flow in and out of the free piston type hydraulic pumps (18) is provided on the drive liquid pipeline. In the free piston fracturing pump, the free piston type hydraulic pumps are driven by the hydraulic station, thereby eliminating a crank-link mechanism that causes a pressure bottleneck, improving the reliability of fracturing equipment, and improving the pressure of fracturing liquid. Also disclosed is a fracturing equipment vehicle. |
