A plunger pump for oil field
A plunger pump, oil field technology, applied in the direction of pump components, pumping device components for elastic fluid, variable capacity pump components, etc., to achieve the effect of improving work efficiency and improving use
Active Publication Date: 2020-12-22
DAQING CITY HUAYU PETROLEUM MASCH MFG CO LTD
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0016] see Figure 1-3 , a plunger pump for oil fields, comprising an outer pipe 1, a pipe chamber 2, a drain pipe 3, a water inlet pipe 4, a drainage check valve 5, a water inlet check valve 6, an eccentric runner 7, a linkage rod 8, The moving assembly 9, the plunger rod 10, the plunger sliding sleeve 11, the pipe chamber 2 is set on one side of the outer pipe 1, and the side of the pipe chamber 2 away from the outer pipe 1 is provided with a drain pipe 3 and a water inlet pipe 4, and the drain The inside of the pipe 3 is provided with a drain check valve 5, and the interior of the water inlet pipe 4 is provided with a water inlet check valve 6; the inside of the outer pipe 1 is provided with an eccentric runner 7 driven by an external motor, and the eccentric runner 7 Ther...
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The invention relates to the field of oilfield plunger pump equipment, and discloses a plunger pump for an oilfield. The plunger pump comprises an outer pipe, a pipe cavity, a drainage pipe, a water inlet pipe, a drainage one-way valve, a water inlet one-way valve, an eccentric rotating wheel, a linkage rod, a moving assembly, a plunger rod and a plunger sliding sleeve, wherein the pipe cavity sleeves one side of the outer pipe. According to the plunger pump for the oilfield, the plunger sliding sleeve, a limiting sleeve, a positioning shaft and an annular plate are designed, and after the plunger sliding sleeve is pulled back to pump water, the annular plate is located on the left side of the inner cavity of the limiting sleeve and the limiting sleeve is internally filled with liquid; andwhen the plunger sliding sleeve performs pushing action, the annular plate relatively moves in the limiting sleeve to compress the right space of the inner cavity of the limiting sleeve, and the throttling effect of a through groove is cooperated so that the liquid in the limiting sleeve can flush the indoor wall of the pipe cavity, so that moving contact action between the plunger sliding sleeveperforming pushing action and the indoor wall of the pipe cavity is always unaffected by particle impurities in the fluid, and the use of the plunger pump is improved.
Description
technical field [0001] The invention relates to the technical field of oilfield plunger pump equipment, in particular to an oilfield plunger pump. Background technique [0002] The plunger pump is an important equipment in the oil production engineering of the oil field. It is commonly used in projects such as oil pumping and oil well injection of water and mortar. The main mechanism of the existing plunger pump is: by driving the eccentric Internal reciprocating motion (that is, uninterrupted push and pull action), cooperate with the check valve to carry out the process of suction and release, so as to realize the work of grouting and oil injection. [0003] However, during the working process of the existing plunger pump, the plunger sliding sleeve reciprocates uninterruptedly in the pipe chamber. Since there are many fine particles and impurities in the oil, mortar and other fluids in the oil field, the plunger push action discharges the pipe chamber. When the fluid is u...
Claims
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IPC IPC(8): F04B53/14
CPCF04B53/14
Inventor 孙庆伟周敏杰于国江李晶张化庆郭英健丛日东杨凤凯姚炳龙
Owner DAQING CITY HUAYU PETROLEUM MASCH MFG CO LTD