Efficiency-improving sand prevention device of oil-well pump

An efficiency-improving sand prevention device of an oil-well pump comprises an adapter connector, a valve seat, a mechanical valve and a plunger. The mechanical valve penetrates the valve seat from down to top, a valve cone of the lower portion of the mechanical valve is in matched sealing with a v...

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Bibliographic Details
Main Authors YI LUCHUAN, XU HAILING, LIU MINJIE, HUANG QIN, QIAN CHENG, SHANG ZHIMEI
Format Patent
LanguageChinese
English
Published 01.01.2014
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:An efficiency-improving sand prevention device of an oil-well pump comprises an adapter connector, a valve seat, a mechanical valve and a plunger. The mechanical valve penetrates the valve seat from down to top, a valve cone of the lower portion of the mechanical valve is in matched sealing with a valve port of the lower portion of the valve seat, and the lower portion of the adapter connector is connected with the upper portion of the mechanical valve. When the mechanical valve and the valve seat are in a closed state, a distance between the lower end face of the adapter connector and the upper end face of the valve seat is 5-20mm, the lower portion of the valve seat is connected with the upper portion of the plunger, and a valve on the plunger is designed at the upper portion of the plunger, so that the length of the mechanical valve is small and can be processed to form an integrated structure, the problems existing in the prior art are solved, the service life of the mechanical valve can be prolonged, the
Bibliography:Application Number: CN20132457438U