Hydraulic self-sealed plunger oil-well pump
A technology of oil well pump and plunger, which is applied in the lifting field of oil mining machinery, can solve the problems of increasing the cost of crude oil extraction, and achieve the effects of reducing energy consumption, increasing stroke length, and improving pump efficiency
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[0012] Conventional hydraulic plunger pump, see figure 2 and Figure 2A , including pump barrel 1', plunger 2', swimming valve 7', and fixed valve 10', wherein the swimming valve 7' is connected to the plunger 2' through a screw thread, and the plunger 2' is connected to the pump Cylinder 1' clearance fit; when in use, the pump cylinder 1' is connected with the oil pipe 9', the plunger 2' is connected with the sucker rod 8', and the sucker rod 8' drives the plunger 2' and the swimming valve 7' to be opposite Pump barrel 1' moves, swimming valve 7' opens on downstroke, lift fluid enters between fixed valve 10' in pump cylinder 1' and plunger 2', on upstroke, swimming valve 7' Closed, the oil is lifted to the surface through the plunger.
[0013] Referring to Fig. 1, the hydraulic self-sealing plunger oil well pump of the present invention also includes components such as a pump barrel 1, a plunger 2, a movable valve 7 and a fixed valve 10, and the movable valve 7 is connected...
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