CN2533261Y - Long-stroke low frequency energy-saving pumping unit - Google Patents
Long-stroke low frequency energy-saving pumping unit Download PDFInfo
- Publication number
- CN2533261Y CN2533261Y CN 01224336 CN01224336U CN2533261Y CN 2533261 Y CN2533261 Y CN 2533261Y CN 01224336 CN01224336 CN 01224336 CN 01224336 U CN01224336 U CN 01224336U CN 2533261 Y CN2533261 Y CN 2533261Y
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- stroke
- pumping unit
- electric motors
- frequency
- mover
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Abstract
The utility model relates to an oil extractor with long stroke and short stroke frequency of a new principle. The utility model keeps the advantages of a simple structure, reliable work as well as convenient repairing and utilization of the walking beam type oil extractor and replaces an electromotor, a reducer, a brace and a connection rod with a beeline electromotor and a pole type rotor; through a combined type pole rotor of a symmetric balance block and a sliding balance block, the lever type precision balance is realized, and the efficiency of the oil extractor is increased. A three phase AC transducer and a directional sensor are used for controlling the upward and downward repeated movements of the lever type rotor of the beeline electromotor, and frequency shifting realizes the lower stroke frequency; and the stroke changing principle of lever realizes the long stroke. The energy saving effect is good, and the effect of pulling thousands of kilos with four hundred gram is realized.
Description
Technical field
The utility model relates to the energy-saving pumping unit of a kind of long stroke, low jig frequency, belong to a kind of equipment of oil exploitation.
Background technology
So far, in the world based on mechanical oil recovery, wherein beam pumping unit is high again ranks first, external about 1,000,000, China about 50,000 around the clock from underground oil recovery.Beam pumping unit drives walking beam by high-power turning motor by precision machined reducer, crank, connecting rod etc., the steel rope of the other end is pumped with the oil pumping steel pole that reaches thousands of meters, every jig frequency is only from the crude oil liquid of several kilograms to tens kilograms of underground extractions, the most outstanding advantage of beam pumping unit is simple in structure, reliable operation.But because the restriction on the principle, its can't accurate balance weigh oil pumping steel pole of several tons; Must adopt more high-power turning motor again when starting, cause " low load with strong power " phenomenon, causing is that power consumption is big, efficient is low.In addition, complicated, changeable oil reservoir and oil well condition require the oil pumper of long stroke, low jig frequency, and beam pumping unit also can not adapt to far away.For many years, developed polytype oil pumper both at home and abroad, as chain type oil pump, special beam pumping units, rotating horsehead pumping unit, compound head sheave long stroke pumping unit etc., improved the beam pumping unit performance significantly, but often lost the highly reliable outstanding advantage of beam pumping unit, the cost that has is high too; Some technical conceives about the new principle oil pumper are also arranged in recent years, but facts have proved and also have many insoluble problems.So far, though beam pumping unit is gone through a century, flourishing long time.
Summary of the invention
The purpose of this utility model provides the energy-saving pumping unit of a kind of long stroke, low jig frequency, drive oil pumper with linear electric motors, with the upper and lower reciprocating motion of the rod-type mover of three-phase alternating current frequency converter and commutation sensors control linear electric motors, frequency control realizes low jig frequency; Change the position of the fulcrum of walking beam, can realize long stroke.It is under the prerequisite of preserving characteristics such as beam pumping unit is simple in structure, reliable operation, and the actual efficiency that improve pumping unit system significantly is energy-conservation significantly, and realizes the service behaviour of long stroke, low jig frequency.
The purpose of this utility model is achieved in that
The energy-saving pumping unit of a kind of long stroke, low jig frequency, it is characterized in that two horse heads and center fixation walking beam are rack-mount, the slide balance piece is arranged on the support, balance weight is fixed on the both sides of two horse heads symmetrically, two horse heads on right side are connected with linear electric motors bar mover by wire rope, steel pipe or the steel pole of linear electric motors bar mover for making by ferrimagnet, its outer Copper Foil that is covered with high conduction.Linear electric motors bar mover penetrates in linear motor stator electric, and the top of linear motor stator electric and bottom are equipped with upper limit journey sensor and lower limit journey sensor, and sensor is communicated with the three-phase alternating current frequency converter; Two horse heads in left side are connected with polished rod by wire rope, and polished rod is connected with sucker rod, and one way valve is equipped with in the bottom of sucker rod.
Described oil pumper is in a side of two horse heads, and linear motor stator electric passes to three-phase current and directly drives rod-type mover moving linearly, and wire rope, polished rod, oil pumping steel pole and one way valve are pumped, with crude oil from underground extraction.
The weight of described oil pumper linear electric motors rod-type mover, symmetrical balance piece makes the weight of it and oil pumper left side polished rod, oil pumping steel pole and one way valve realize coarse balance earlier; Further adjust the slide balance piece and realize with the walking beam being the accurate balance of the both sides of lever, thereby as long as make linear electric motors overcome the friction of oil pumping steel pole and underground crude oil, and several kilograms to tens kilograms crude oil liquid of every jig frequency extraction and doing work.
The employing of described oil pumper industrial widely used position proximity transducer or photoelectric sensor, as upper and lower limit journey commutation sensors, output pulse signal is given the three-phase alternating current frequency converter, controls the commutation that pumps of linear electric motors rod-type mover automatically; Programme-control three-phase alternating current frequency converter reduces frequency, makes linear electric motors rod-type mover movement velocity slack-off, realizes low jig frequency.
Two horse heads of described oil pumper and center fixation walking beam are rack-mount, form a lever stroke and converter.According to lever both sides moment equilibrium principle, change the position of the fulcrum of walking beam, realize the long stroke conversion.
Description of drawings
Fig. 1 is the utility model structural representation;
Wherein accompanying drawing part symbolic representation:
1, lower limit journey sensor 2, upper limit journey sensor 3, three-phase alternating current frequency converter
4, linear motor stator electric 5, linear electric motors rod-type mover 6, steel rope
7, two horse heads 8, symmetrical balance piece 9, slide balance piece
10, walking beam 11, support 12, wire rope
13, polished rod 14, sucker rod 15, crude oil
16, one way valve
The specific embodiment
Referring to Fig. 1, the utility model is the energy-saving pumping unit of a kind of long stroke, low jig frequency, be installed on the support 11 at two horse heads 7 and center fixation walking beam 10, slide balance piece 9 is arranged on the walking beam 10, balance weight 8 is fixed on the both sides of two horse heads 7 symmetrically, two horse heads 7 on right side are connected with linear electric motors bar mover 5 by wire rope 6, linear electric motors bar mover 5 penetrates in linear motor stator electric 4, the top of linear motor stator electric 4 and bottom are equipped with upper limit journey sensor 2 and lower limit journey sensor 1, and sensor is communicated with three-phase alternating current frequency converter 3; Two horse heads 7 in left side are connected with polished rod 13 polished rods 13 by wire rope 12 and are connected with sucker rod 14, and one way valve 16 is equipped with in the bottom of sucker rod 14.
This oil pumper is to pass to three-phase current with linear motor stator electric 4 directly to drive rod-type mover 5 moving linearlies, and wire rope 12, polished rod 13, oil pumping steel pole 14 and one way valve 16 are pumped, with crude oil 15 from underground extraction.Owing to need not high speed rotary motion is become reducer, crank and the connecting rod etc. of low-speed rectilinear movement, eliminated energy loss because of mechanical friction, bump etc.Two horse heads 7 make wire rope 6 and 12 all the time in the tangential direction motion of circular arc, and not friction can not produce moving of horizontal direction yet.
Linear drives is achieved accurate balance.The weight of oil pumper left side polished rod 13, oil pumping steel pole 14 and one way valve 16 can more accurately be calculated and measure, if be 7 tons, designs, selects the weight of linear electric motors rod-type mover 5, symmetrical balance piece 8 to be about 6.9 tons so suitably, realizes coarse balance earlier; Further adjust slide balance piece 9 and realize with walking beam 10 being the accurate balance of the both sides of lever.As long as so power-equipment overcomes the friction of oil pumping steel pole 14 and underground crude oil, and several kilograms to tens kilograms crude oil liquid extracting out of every jig frequency and doing work.The idle work that several tons of oil pumping steel pole 14 grades that weigh move up and down just " balance " cleverly, and " art is good for strength " improved the efficient of oil pumping system significantly.The design of rod-type mover 5 is subjected to the constraint of linear electric motors principle, and experiment confirm adopts ferrimagnets such as steel pipe or steel pole better, and is better coated with the Copper Foil effect of high conduction outward; Its length should be consistent with the stroke that moves up and down.Symmetrical balance piece 8 is fixed on the both sides of two horse heads 7 symmetrically, helps the stable of oil pumping system motion.
Lower limit journey commutation sensors 1 and upper limit journey commutation sensors 2 move back and forth automatic reverse by three-phase alternating current Frequency Converter Control linear electric motors rod-type mover 5.They can adopt industrial widely used position proximity transducer or photoelectric sensor, it is installed in linear motor stator electric 4 tops or rod-type mover 5 places are approached in the bottom, when mover 5 down moves when not exposed stator 4, pulse signal of position sensor output is given the control assembly of three-phase alternating current frequency converter 3, one of make in A, B, the C three-phase commutation, the direction in the rectilinear motion magnetic field of linear electric motors changes, and mover 5 moves upward immediately; Vice versa.Modern three-phase alternating current frequency converter 3 is a kind of highly reliable, powerful power equipments, but programme-control frequency control own realizes low jig frequency.For example according to the design parameters of linear electric motors, when power frequency was 50Hz, the movement velocity of mover 5 was about 1m/s, and per minute is 10 times in the stroke of 3m up and down reciprocatingly, and promptly jig frequency is 10 times/minute; The frequency of three-phase alternating current frequency converter 3 can change between 0.1-400Hz continuously, if the program control 10Hz that is set at, then the movement velocity of mover 5 is about 0.2m/s, and corresponding jig frequency is 2 times/minute, has realized low jig frequency easily.
Two horse heads 7 and center fixation walking beam 10 are installed on the support 11, form a lever stroke converter.If left end wire rope 12 load are fo, right-hand member wire rope 7 load are fe, according to arm of force equilibrium principle, fo Lo=Fe Le should be arranged.Change the position of the fulcrum of walking beam 10, make Lo=2Le, mover 5 physical lengths are 3m, stator 4 high 0.5m, and then the mover effective length is (3-0.5) m=2.5m.So, when right-hand member mover 5 down moves 2.5m, the polished rod 13 of the left end 5m that should up move, promptly the oil pumper stroke is 5m, has realized the long stroke conversion.Certainly, the driving arrangement of right-hand member---cost that linear electric motors are paid is that pulling force will increase by one times during than Lo=Le.Because accurate balance power is that pulling force is very little, linear electric motors can be dealt with enough, as long as Machine Design is reasonable, safety, the accommodation of this lever stroke converter is broad.
Claims (2)
1, a kind of long stroke, the energy-saving pumping unit of low jig frequency, it is characterized in that two horse heads (7) and center fixation walking beam (10) are installed on the support (11), slide balance (9) is arranged on the walking beam (10), balance weight (8) is fixed on the both sides of two horse heads (7) symmetrically, two horse heads (7) on right side are connected with linear electric motors bar mover (5) by wire rope (6), linear electric motors bar mover (5) penetrates in linear motor stator electric (4), the top of linear motor stator electric (4) and bottom are equipped with upper limit journey sensor (2) and lower limit journey sensor (1), and sensor is communicated with three-phase alternating current frequency converter (3); Two horse heads (7) in left side are connected with polished rod (13) by wire rope (12), and polished rod (13) is connected with sucker rod (14), and one way valve (16) is equipped with in the bottom of sucker rod (14).
2, the energy-saving pumping unit of a kind of long stroke according to claim 1, low jig frequency is characterized in that steel pipe or steel pole that linear electric motors bar mover (5) is made by ferrimagnet, its outer Copper Foil that is covered with high conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01224336 CN2533261Y (en) | 2001-05-22 | 2001-05-22 | Long-stroke low frequency energy-saving pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01224336 CN2533261Y (en) | 2001-05-22 | 2001-05-22 | Long-stroke low frequency energy-saving pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533261Y true CN2533261Y (en) | 2003-01-29 |
Family
ID=33640663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01224336 Expired - Fee Related CN2533261Y (en) | 2001-05-22 | 2001-05-22 | Long-stroke low frequency energy-saving pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533261Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410000A (en) * | 2010-09-20 | 2012-04-11 | 辽宁浩方天成智能系统有限公司 | Static balance permanent magnetic stepper walking beam oil pumping machine |
| CN101614119B (en) * | 2009-07-28 | 2013-02-13 | 樊红海 | Mobile balance block device for beam-type balance oil extractor |
| CN110630223A (en) * | 2018-06-23 | 2019-12-31 | 上海樱洛机电科技有限公司 | Servo electric cylinder driven beam-pumping unit |
| CN115434673A (en) * | 2022-09-27 | 2022-12-06 | 宝鸡汇特石油设备有限公司 | Control system of double-horsehead oil pumping unit |
-
2001
- 2001-05-22 CN CN 01224336 patent/CN2533261Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614119B (en) * | 2009-07-28 | 2013-02-13 | 樊红海 | Mobile balance block device for beam-type balance oil extractor |
| CN102410000A (en) * | 2010-09-20 | 2012-04-11 | 辽宁浩方天成智能系统有限公司 | Static balance permanent magnetic stepper walking beam oil pumping machine |
| CN102410000B (en) * | 2010-09-20 | 2014-08-20 | 辽宁浩方天成智能系统有限公司 | Static balance permanent magnetic stepper walking beam oil pumping machine |
| CN110630223A (en) * | 2018-06-23 | 2019-12-31 | 上海樱洛机电科技有限公司 | Servo electric cylinder driven beam-pumping unit |
| CN115434673A (en) * | 2022-09-27 | 2022-12-06 | 宝鸡汇特石油设备有限公司 | Control system of double-horsehead oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |