Oppositely-arranged axial plunger pump
An axial piston pump, opposed technology, applied in the direction of piston pumps, pumps, liquid variable displacement machinery, etc., can solve the problems of performance due to manufacturing and installation errors, occupy a large area of the site, and have high requirements for the control system, so as to achieve improvement The effect of life, prolonging service life and avoiding wear and tear
Active Publication Date: 2013-11-20
SINOPEC OILFIELD EQUIP CORP +1
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The current hydraulically driven reciprocating pumps have a simple structure, high efficiency, light weight, and stable operation, which can basically meet the requirements of the petroleum industry for reciprocating pumps, but they have high requirements for the control system, and the reliability in harsh environments needs to be further improved. Its application is limited
The three-cylinder single-acting cam mechanism constant flow reciprocating pump has constant flow in the intake and discharge main pipes and no pressure fluctuations. However, under the same working parameters, the reciprocating pump is larger and heavier than the crank connecting rod mechanism reciprocating pump.
The linear motor reciprocating pump basically eliminates the instability of the output flow and pressure of the reciprocating pump in theory, but its performance is affected by manufacturing and installation errors and limited by working conditions
[0004] The plunger pumps widely used at present are mostly single-acting reciprocating pumps with relatively small displacement. It is difficult for a single machine to meet the requirements of drilling, fracturing, and water injection in oil fields. It is necessary to use multiple machines in parallel to increase the displacement, which causes occupation. Due to the problem of large site area and high total energy consumption, there is an urgent need for a multi-cylinder plunger pump with compact structure, small volume, high pump efficiency, large displacement and energy saving
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] The present invention will be further described below in conjunction with accompanying drawing.
[0027] Such as figure 1 As shown, this embodiment provides an opposed axial piston pump, which includes a pump housing, a cylindrical frame shaft 28, a cylindrical cam 9 and a driving device, the frame shaft 28 is arranged in the pump housing, The cylindrical cam 9 is hollow, and the cylindrical cam 9 is an end face cylindrical cam, and the axial distance between the two ends of the cylindrical cam 9 is always a certain value. The cylindrical cam 9 is sleeved on the center of the frame shaft 28, and an annular boss 903 is arranged at the position of the inner wall of the cylindrical cam along the central axis 904, and a cylindrical roller bearing 24 is arranged at the annular boss 903, and is arranged on both sides of the boss. There are thrust ball bearings 25 and bearing housings 23. The bearing housings 23 and the frame shaft 28 are threadedly connected, wherein the cyl...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an oppositely-arranged axial plunger pump. The oppositely-arranged axial plunger pump comprises a pump shell and a rack shaft. The rack shaft is fixedly arranged in the pump shell. A cylindrical cam is arranged in the middle of the rack shaft through bearings and bearing pedestals and is an end face cylindrical cam. Rollers, roller carriers, transmission mechanisms, plungers and fluid end assemblies are symmetrically arranged on the two sides of the cylindrical cam. The rollers are evenly arranged along the end face edge line of the cylindrical cam, the rollers are matched with the roller carriers, the roller carriers are connected with the plungers through the transmission mechanisms, the other ends of the plungers are arranged with the fluid ends, and a driving device is used for driving the cylindrical cam. The oppositely-arranged axial plunger pump overcomes the defects that a crank connecting rod mechanism plunger pump is large in size, heavy in weight and large in output flow pulsation. Due to the oppositely-arranged structure, the oppositely-arranged axial plunger pump has the advantages of achieving large displacement more easily, and being long in service life, compact in structure, high in pump efficiency and the like compared with an original single-action plunger pump. The oppositely-arranged axial plunger pump is reduced by 50% in size and by 35% in weight compared with a horizontal plunger pump.
Description
technical field [0001] The invention relates to an opposed axial piston pump. Background technique [0002] Reciprocating pumps are widely used in drilling, acid fracturing, water injection and other production in oil fields. As the oil industry has higher and higher requirements for reciprocating pumps, reciprocating pumps are developing towards high output pressure, large flow, convenient manufacture and maintenance, small flow pressure fluctuation, small size and light weight. [0003] The current hydraulically driven reciprocating pumps have a simple structure, high efficiency, light weight, and stable operation, which can basically meet the requirements of the petroleum industry for reciprocating pumps, but they have high requirements for the control system, and the reliability in harsh environments needs to be further improved. Its application is subject to certain restrictions. The three-cylinder single-acting cam mechanism constant flow reciprocating pump has const...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F04B9/04
Inventor 周向东代琼曦张策钱伟强
Owner SINOPEC OILFIELD EQUIP CORP