CN103132954B - Full hydraulic changing stroke energy-saving type oil pumping unit - Google Patents
Full hydraulic changing stroke energy-saving type oil pumping unit Download PDFInfo
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- CN103132954B CN103132954B CN201110392410.1A CN201110392410A CN103132954B CN 103132954 B CN103132954 B CN 103132954B CN 201110392410 A CN201110392410 A CN 201110392410A CN 103132954 B CN103132954 B CN 103132954B
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Abstract
Provided is a full hydraulic pressure changing stroke energy-saving type oil pumping unit. The full hydraulic pressure changing stroke energy-saving type oil pumping unit consists of an oil pumping machine portion and a hydraulic portion. The oil pumping machine portion comprises a rack, a guiding dolly, a movable block and support wheels. The bottom of the rack is hinged with one end of a non-rod chamber of a single-action hydraulic cylinder which is used as power of oil pumping. The guiding dolly is hinged with the top of a piston rod of the single-action hydraulic cylinder. The movable block is connected on the top of the guiding dolly. The support wheels are arranged on two sides of the movable block in a symmetrical mode. One end of a suspension rope is fixed on one side of the rack, passes by the support wheels and the movable block in a winding mode, and is connected with a sucker rod. The hydraulic portion comprises the single-action hydraulic cylinder, a hydraulic station and a hydraulic pipeline. The non-rod chamber of the single-action hydraulic cylinder is connected with the hydraulic station through the hydraulic pipeline. A magnetic exchange valve II is controlled by a stroke control switch to be in direction exchange movements, and therefore reciprocating motion of the hydraulic cylinder is achieved. The full hydraulic pressure changing stroke energy-saving type oil pumping unit is simple and compact in structure, and is capable of effectively reducing manufacturing cost. Due to the design of a hydraulic energy storage recovery system, installed power is reduced, energy sources are saved, and a stroke of the hydraulic cylinder is manyfold increased through utilization of a movable block device.
Description
Technical field
The invention belongs to oil exploration equipment technical field, particularly one all-hydraulic change stroke energy-saving beam pumping unit.
Background technology
Oil pumper is topmost lifting equipment in rod pumping system, and traditional beam pumping unit sum that oil field at home generally uses has reached more than 20 ten thousand, every day power consumption more than 0.5 ×
kwh, account for 30% ~ 50% of oil field total electricity consumption, and this beam pumping unit overall efficiency is lower, generally lower than 30%; And, along with continually developing of petroleum resources, the reservoir exploitation degree of depth strengthens gradually, and increasing and the enforcement of the oil production technology such as thickened oil recovery of oil-field aqueous amount, traditional beam pumping unit can not meet the production practice demand of existing large load, long stroke, low jig frequency.
There is complicated in mechanical structure, device fabrication steel consumption is large, manufacturing processing technic difficulty is large, manufacturing cost is high, entire system installed capacity is large, power is low, transmission link is many, energy loss is large shortcoming in existing pumping unit.
Summary of the invention
For overcoming the shortcomings and deficiencies of existing oil production equipment, the invention provides a kind of all-hydraulic change stroke energy-saving beam pumping unit, be made up of oil pumping mechanical part and hydraulic part, oil pumping mechanical part comprises frame, guiding trolley, movable pulley and support wheel, hinged with the single-action hydraulic cylinder rodless cavity one end as power of pumping bottom frame, guiding trolley and single-action hydraulic cylinder piston rod part hinged, movable pulley is connected to above guiding trolley, movable pulley bilateral symmetry is provided with support wheel, outstanding rope one end is fixed on frame side, the other end is walked around support wheel and is connected with sucker rod with movable pulley, hydraulic part comprises single-action hydraulic cylinder, Hydraulic Station, hydraulic line, single-action hydraulic cylinder rodless cavity is connected by the oil-out of hydraulic line with the solenoid operated directional valve II in Hydraulic Station, solenoid operated directional valve II controls it by travel control switch and becomes commutation action, realizes the reciprocating motion of hydraulic cylinder.
Described Hydraulic Station comprises a main oil pump, main oil pump oil-out is connected in series with one way valve I, and simultaneously and accumulator, solenoid operated directional valve II oil-in, auxiliary oil pump oil-out is connected, solenoid operated directional valve II oil-in is connected with auxiliary oil pump oil-out simultaneously, when making hydraulic cylinder upstroke, main oil pump and accumulator act on fuel feeding simultaneously, during hydraulic cylinder downward movement, main oil pump and auxiliary oil pump are simultaneously to accumulator topping up, auxiliary oil pump coaxially connects a hydraulic motor, hydraulic motor oil-in is connected with solenoid operated directional valve II oil return opening, it is made to be connected in single-action hydraulic cylinder oil return line, hydraulic motor oil-out connects an electromagnetic switch choke valve, and connect oil sump tank by pipeline, auxiliary oil pump oil-in is connected with fuel tank, oil-out is connected in series an one way valve II and is connected with accumulator, main oil pump outlet bypass connects the oil-in of a sequence valve, sequence valve oil-out connects oil sump tank by pipeline, sequence valve control port is connected with accumulator hydraulic fluid port, utilize accumulator maximum supercharging pressure control sequence valve, make main oil pump off-load, be provided with overflow valve and the pressure meter of Overload Protection in main oil pump and auxiliary oil pump loop, in oil return line, be provided with electromagnetic switch choke valve, in oil piping system, be also provided with adjusting device and alarming apparatus that oil temperature controls automatically.
Described guiding trolley comprises leading block, and leading block coordinates with the section material guide rail in frame and slides, and section material guide rail is fixing on a mounting board, and installing plate is fixedly connected with frame.
The operating principle of oil pumper of the present invention is as follows:
Employing hydraulic system drives, in system uplink journey oil pumping process, and main oil pump and accumulator acting in conjunction, for single-acting hydraulic oil supply cylinder, after reaching the travel position that up stroke gauge tap limits, trigger travel switch, control solenoid operated directional valve II to commutate, complete oil pumping process; System starts downward movement, in decline process, main oil pump is to accumulator topping up, accumulator stores pump intermittent power, and utilize system decline potential energy driving pump-motor loop, make it to accumulator topping up, recovery system potential energy, is converted into hydraulic energy and is stored in accumulator, is next Pumping action savings energy, when accumulator reaches maximum working pressure (MWP), control sequence valve events, realizes the off-load to main oil pump, when single-action hydraulic cylinder moves to the travel position that down stroke gauge tap limits, control solenoid operated directional valve II to commutate, complete a stroke; Oil pumping mechanical part is Doubling formula structure, at hydraulic cylinder piston rod top, movable pulley and guiding trolley are set, and utilize outstanding rope to pull sucker rod to pump, the outstanding rope other end is fixed in frame, to reduce hydraulic cylinder stroke, and realize the adjustment to cylinder stroke length by the installation site changing frame up stroke gauge tap.
Beneficial effect of the present invention:
(1) the more conventional oil pumping equipment of this oil pumper saves in the past complicated transmission, reducing gear, simple and compact for structure, effectively can reduce manufacturing cost, and equipment adaptivity is good;
(2) hydraulic part devises accumulation of energy recovery system, adopts pump-motor loop, coordinates accumulator recovery system potential energy and main oil pump intermittent power, realize the recycle and reuse of power, improve running efficiency of system, the installed power of 40% can be reduced on year-on-year basis with traditional oil pumper, energy conservation;
(3) utilize lifting guiding trolley to drive movable pulley to pump, and pulling sucker rod to move up and down by outstanding rope, outstanding rope one end is fixed, and hydraulic cylinder travel is reduced by half, and by the installation site of adjustment stroke gauge tap in frame, the regulation and control of the different stroke of the system that realizes.
Accompanying drawing explanation
Fig. 1 is the oil pumper overall structure schematic diagram of the embodiment of the present invention;
Fig. 2 is that the Hydraulic Station of the embodiment of the present invention arranges schematic diagram;
Fig. 3 is the guiding trolley structural representation of the embodiment of the present invention;
In figure: 1 main oil pump, 2 overflow valves I, 3 solenoid operated directional valves I, 4 one way valves I, 5 sequence valves, 6 accumulators, 7 solenoid operated directional valves II, 8 single-action hydraulic cylinders, 9.1 down stroke gauge taps, 9.2 up stroke gauge taps, 10 hydraulic motors, 11 auxiliary oil pumps, 12 electromagnetic switch choke valves, 13 one way valves II, 14 overflow valves II, 15 strainers, 16 fuel tanks, 17 air filters, 18 heaters, 19 oil temperature oil level indicators, 20 sucker rods, 21 frames, 22 outstanding ropes, 23 support wheels, 24 movable pulley, 25 guiding trolleys, 26 hydraulic lines, 27 Hydraulic Stations, 28 leading blocks, 29 section material guide rails, 30 installing plates.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
All-hydraulic change stroke energy-saving beam pumping unit, be made up of oil pumping mechanical part and hydraulic part, oil pumping mechanical part comprises frame 21, guiding trolley 25, movable pulley 24 and support wheel 23, hinged with the single-action hydraulic cylinder 8 rodless cavity one end as power of pumping bottom frame 21, guiding trolley 25 is hinged with single-action hydraulic cylinder 8 piston rod part, movable pulley 24 is connected to above guiding trolley 25, movable pulley 24 bilateral symmetry is provided with support wheel 23, outstanding rope 22 one end is fixed on frame 21 side, and the other end is walked around support wheel 23 and is connected with sucker rod 20 with movable pulley 24; Hydraulic part comprises single-action hydraulic cylinder 8, Hydraulic Station 27, hydraulic line 26, single-action hydraulic cylinder 8 rodless cavity is connected with the oil-out of the solenoid operated directional valve II 7 in Hydraulic Station 27 by hydraulic line 26, solenoid operated directional valve II 7 controls it by travel control switch and becomes commutation action, realizes the reciprocating motion of hydraulic cylinder.
Described Hydraulic Station 27 comprises a main oil pump 1, main oil pump 1 oil-out is connected in series with one way valve I 4, and simultaneously with accumulator 6, solenoid operated directional valve II 7 oil-in, auxiliary oil pump 11 oil-out is connected, solenoid operated directional valve II 7 oil-in is connected with auxiliary oil pump 11 oil-out simultaneously, auxiliary oil pump 11 coaxially connects a hydraulic motor 10, hydraulic motor 10 oil-in is connected with solenoid operated directional valve II 7 oil return opening, oil-out connects an electromagnetic switch choke valve 12, and connect oil sump tank 16 by pipeline, hydraulic motor 10 is made to be connected in single-action hydraulic cylinder oil return line, auxiliary oil pump 11 oil-in is connected with fuel tank 16, oil-out is connected in series an one way valve II 13 and is connected with accumulator 6, main oil pump 1 exports the oil-in that bypass connects a sequence valve 5, sequence valve 5 oil-out connects oil sump tank 16 by pipeline, sequence valve 5 control port is connected with accumulator 6 hydraulic fluid port, the overflow valve I 2 of Overload Protection, solenoid operated directional valve I 3 and pressure meter is provided with in main oil pump 1 loop, auxiliary oil pump 11 is provided with overflow valve II 14 and pressure meter in loop, electromagnetic switch choke valve 12 is provided with in hydraulic motor 10 oil return line, the strainer 15 of band signalling generator is provided with in system oil return road, auto-alarm-signal keying device can be realized, the reliability of raising system, is provided with air filter 17, heater 18 and oil temperature oil level indicator 19, for the automatic control and adjustment of oil temperature in main oil pump 1 oil piping system.
Described guiding trolley 25 comprises leading block 28, and leading block 28 coordinates with the section material guide rail 29 in frame 21 and slides, and section material guide rail 29 is fixed on installing plate 30, and installing plate 30 is fixedly connected with frame 21 by bolt.
The course of work of oil pumper of the present invention is specific as follows:
System motor starts, main oil pump 1 and accumulator 6 acting in conjunction, for single-action hydraulic cylinder 8 fuel feeding, single-action hydraulic cylinder 8 upstroke, guiding trolley 25 drives the support wheel 23 of movable pulley 24 and two symmetrical structures at moving on rails under Driven by Hydraulic Cylinder, and by outstanding rope 22 pull sucker rod 20 carry out on propose motion, after hydraulic cylinder reaches the travel position that up stroke gauge tap 9.2 limits, trigger travel switch, control solenoid operated directional valve II 7 and commutate, complete oil pumping process, system starts downward movement, in decline process, main oil pump 1 is to accumulator 6 topping up, accumulator 6 stores pump intermittent power, and utilize system decline potential energy driving pump-motor loop, make it to accumulator 6 topping up, recovery system potential energy, being converted into hydraulic energy is stored in accumulator 6, for next Pumping action savings energy, when accumulator 6 reaches maximum working pressure (MWP), control sequence valve 5 action, realize the off-load to main oil pump 1, when single-action hydraulic cylinder 8 moves to the travel position that down stroke gauge tap 9.1 limits, control solenoid operated directional valve II 7 to commutate, complete a stroke.
Claims (3)
1. an all-hydraulic change stroke energy-saving beam pumping unit, it is characterized in that: this oil pumper is made up of pump mechanical part and hydraulic part, oil pumping mechanical part comprises frame, guiding trolley, movable pulley and support wheel, hinged with the single-action hydraulic cylinder rodless cavity one end as power of pumping bottom frame, guiding trolley and single-action hydraulic cylinder piston rod part hinged, movable pulley is connected to above guiding trolley, movable pulley bilateral symmetry is provided with support wheel, outstanding rope one end is fixed on frame side, and the other end is walked around support wheel and is connected with sucker rod with movable pulley; Hydraulic part comprises single-action hydraulic cylinder, Hydraulic Station, hydraulic line, single-action hydraulic cylinder rodless cavity is connected by the oil-out of hydraulic line with the solenoid operated directional valve II in Hydraulic Station, solenoid operated directional valve II controls it by travel control switch and becomes commutation action, realizes the reciprocating motion of hydraulic cylinder.
2. all-hydraulic change stroke energy-saving beam pumping unit according to claim 1, it is characterized in that described Hydraulic Station comprises a main oil pump, main oil pump oil-out is connected in series with one way valve I, and simultaneously and accumulator, solenoid operated directional valve II oil-in, auxiliary oil pump oil-out is connected, solenoid operated directional valve II oil-in is connected with auxiliary oil pump oil-out simultaneously, auxiliary oil pump coaxially connects a hydraulic motor, hydraulic motor oil-in is connected with solenoid operated directional valve II oil return opening, it is made to be connected in single-action hydraulic cylinder oil return line, hydraulic motor oil-out connects an electromagnetic switch choke valve, and connect oil sump tank by pipeline, auxiliary oil pump oil-in is connected with fuel tank, oil-out is connected in series an one way valve II and is connected with accumulator, main oil pump outlet bypass connects the oil-in of a sequence valve, sequence valve oil-out connects oil sump tank by pipeline, sequence valve control port is connected with accumulator hydraulic fluid port, be provided with overflow valve and the pressure meter of Overload Protection in main oil pump and auxiliary oil pump loop, in oil return line, be provided with electromagnetic switch choke valve, in oil piping system, be also provided with adjusting device and alarming apparatus that oil temperature controls automatically.
3. all-hydraulic change stroke energy-saving beam pumping unit according to claim 1, it is characterized in that described guiding trolley comprises leading block, leading block coordinates with the section material guide rail in frame and slides, and section material guide rail is fixing on a mounting board, and installing plate is fixedly connected with frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110392410.1A CN103132954B (en) | 2011-11-30 | 2011-11-30 | Full hydraulic changing stroke energy-saving type oil pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110392410.1A CN103132954B (en) | 2011-11-30 | 2011-11-30 | Full hydraulic changing stroke energy-saving type oil pumping unit |
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| Publication Number | Publication Date |
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| CN103132954A CN103132954A (en) | 2013-06-05 |
| CN103132954B true CN103132954B (en) | 2015-06-10 |
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| CN201110392410.1A Active CN103132954B (en) | 2011-11-30 | 2011-11-30 | Full hydraulic changing stroke energy-saving type oil pumping unit |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595255A (en) * | 2014-12-30 | 2015-05-06 | 吉林大学 | Hydraulic auxiliary power energy-saving system of beam oil pumping unit |
| CN104763385B (en) * | 2015-04-09 | 2017-09-19 | 东北大学 | A kind of all-hydraulic potential energy recovering economizing oil pumper |
| CN110566139A (en) * | 2019-08-19 | 2019-12-13 | 青岛北海俊惠电子仪表有限公司 | Hydraulic workover rig |
| CN110578499A (en) * | 2019-08-19 | 2019-12-17 | 青岛北海俊惠电子仪表有限公司 | Hydraulic suction machine |
| CN111207135B (en) * | 2020-03-03 | 2022-02-01 | 江苏师范大学 | Overflow loss recycling system based on hydraulic energy accumulator and four-cavity hydraulic cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656630Y (en) * | 2003-11-21 | 2004-11-17 | 浙江大学 | Variable frequency hydraulic oil pumping machine using energy accumulator counter weight |
| CN101538998A (en) * | 2008-03-21 | 2009-09-23 | 宋志亮 | Improved automatic control hydraulic transmission oil pumping machine |
| CN201714352U (en) * | 2010-07-07 | 2011-01-19 | 宋志亮 | Hydraulic transmitting and folding stand type oil pumping unit |
| EP2280174A1 (en) * | 2008-03-11 | 2011-02-02 | Hao, Shuanghui | Hydraulic cylinder, oil pumping unit, oil pumping module and oil pumping system |
| CN202370490U (en) * | 2011-11-30 | 2012-08-08 | 辽宁东工装备制造有限公司 | Fully hydraulic variable stroke energy-saving pumping unit |
-
2011
- 2011-11-30 CN CN201110392410.1A patent/CN103132954B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656630Y (en) * | 2003-11-21 | 2004-11-17 | 浙江大学 | Variable frequency hydraulic oil pumping machine using energy accumulator counter weight |
| EP2280174A1 (en) * | 2008-03-11 | 2011-02-02 | Hao, Shuanghui | Hydraulic cylinder, oil pumping unit, oil pumping module and oil pumping system |
| CN101538998A (en) * | 2008-03-21 | 2009-09-23 | 宋志亮 | Improved automatic control hydraulic transmission oil pumping machine |
| CN201714352U (en) * | 2010-07-07 | 2011-01-19 | 宋志亮 | Hydraulic transmitting and folding stand type oil pumping unit |
| CN202370490U (en) * | 2011-11-30 | 2012-08-08 | 辽宁东工装备制造有限公司 | Fully hydraulic variable stroke energy-saving pumping unit |
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| CN103132954A (en) | 2013-06-05 |
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