CN201407018Y - Novel oilfield pumping device - Google Patents
Novel oilfield pumping device Download PDFInfo
- Publication number
- CN201407018Y CN201407018Y CN2009201384075U CN200920138407U CN201407018Y CN 201407018 Y CN201407018 Y CN 201407018Y CN 2009201384075 U CN2009201384075 U CN 2009201384075U CN 200920138407 U CN200920138407 U CN 200920138407U CN 201407018 Y CN201407018 Y CN 201407018Y
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- rope
- permanent magnet
- pull rope
- maintenance
- earth permanent
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Abstract
The utility model relates to the technical field of oilfield pumping equipment, in particular to a novel oilfield pumping device taking a rear earth permanent magnet frequency conversion motor as thepower device. The pumping device comprises an oil pump device arranged on an oilwell and is characterized in that the device further comprises a rear earth permanent magnet frequency conversion motorpower device, a rope pulley and an operation hauling rope wound on the rope pulley; the rear earth permanent magnet frequency conversion motor power device drives the rope pulley to work via a mediumtransmission and reducing mechanism; one end of the operation hauling rope is connected with a pumping rod of the oil pump device so as to drive the pumping rod to reciprocate up and down; a counter balance is hung at the other end of the operation hauling rope which bypasses the rope pulley; and a maintenance hauling rope is fixedly mounted on the rope pulley while the other end thereof is connected with an adjusting mechanism. The device not only helps the oil pump to keep a constant operating speed, but also has the advantages of convenient installation and maintenance and good using effect.
Description
Technical field
The present invention relates to oil field pumping unit technical field, particularly a kind of novel oilfield oil rig that adopts the rare earth permanent magnet variable-frequency motor as power set.
Background technology
It is beam pumping unit that the oil field pumping unit uses traditional machine of kowtowing always, is directly dragged by ordinary ac asynchronous motor usually.Its crank band drives sucker rod with balance, drives downhole pump the pumping of cycle that fix, and the oil of down-hole is transported to ground.In a jig frequency, along with the working condition of the rising/decline motor of sucker rod is constantly changing, because the variation negative pressure of height increases, and potential energy strengthens, motor load progressively strengthens, and is the power maximum in the time of to the limit, peak negative pressure maximum during decline during rising.Oil has been discharged oil being close to zero from heavy load pump in the pump.Because the effect of down-hole negative pressure, the motor working condition belongs to driven situation.Yet the situation of down-hole oil reservoir is complicated especially, and the branch of rich oil well, stripper is arranged, and has thin oil well, heavy oil wells not, summer and winter poor.There are problems such as piston motion wearing clearance leakage again in oil pumper self.Simultaneously different stratum sand, wax, water, gas equal size situation difference.So direct working condition that influences oil well pump, thereby caused the variation of oil pumping amount size.How to make oil well pump under above varying environment, different condition, different working condition constant operating rate and stable oil pump capacity be arranged, this is a critical technical problems.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of novel oilfield oil rig is provided, this device not only helps making oil pump to keep constant operating rate, and installation and maintenance are convenient, and result of use is good.
For realizing above-mentioned purpose, technical scheme of the present invention is: a kind of novel oilfield oil rig, comprise the oil pump device of being located on the oil well, it is characterized in that: also comprise rare earth permanent magnet variable-frequency motor power set, rope sheave and be set around work pull rope on the rope sheave, described rare earth permanent magnet variable-frequency motor power set drive the rope sheave running through middle transmission and reducing gear, described work pull rope one end is connected with the sucker rod of oil pump device and pumps to drive sucker rod, the other end that described work pull rope is walked around rope sheave hangs and is provided with balance weight, be fixed with the installation and maintenance pull rope on the described rope sheave, the other end is connected with guiding mechanism.
The invention has the beneficial effects as follows oil pumping system is improved, adopt the rare earth permanent magnet variable-frequency motor to replace the beam type machine, be equipped with the two-stage speed change, to guarantee the constant operating rate of oil pump, stablize fuel-displacedly, simultaneously rare-earth permanent-magnet electric machine has the high efficiency characteristics and realizes stepless automatic speed regulation.Compare with traditional beam type machine, the degree of balance when counterweight and beam hanger work generally is controlled at 85%～90%.Counterweight in service and mobile jib alternately store, discharge the extremely low work of satisfying big load oil well of heat energy, energy consumption.Simultaneously can improve mechanical efficiency 30%～50%.Simultaneously, the work of this oil rig is accurately controlled by computer fully, after down-hole load changes, still can easily finish rapidly and adjust required work capacity.It is more accurate to adjust parameter, and intuitive display is easy and simple to handle, realizes Long-distance Control.
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
The specific embodiment
Novel oilfield oil rig of the present invention, comprise the oil pump device of being located on the oil well 15, rare earth permanent magnet variable-frequency motor power set 1, rope sheave 8 and be set around installation and maintenance pull rope 9 and work pull rope 10 on the rope sheave 8, described rare earth permanent magnet variable-frequency motor power set 1 drive rope sheave 8 runnings through middle transmission and reducing gear 7, described work pull rope 10 1 ends are connected with the sucker rod 14 of oil pump device 15 through guide wheel 11 and pump to drive sucker rod 14, the other end that described work pull rope 10 is walked around rope sheave 8 hangs and is provided with balance weight 12, with the negative pressure of balance down-hole, reach the purpose of energy saving to pump.Described installation and maintenance pull rope 9 one ends are fixedly connected on the rope sheave 8, and the other end also is connected with sucker rod 14.
Above-mentioned rare earth permanent magnet variable-frequency motor power set 1 comprise rare earth permanent magnet dual-gripper traction machine 4, encoder, master board and frequency converter, described encoder is installed on the electric machine main shaft of traction machine 4 and through holding wire and is connected with the signal input part of master board, with the tach signal of gathering electric machine main shaft and feed back to master board, after treatment again by Frequency Converter Control traction machine 4, finish closed-loop control, realize the constant speed running of setting.
Transmission and reducing gear 7 comprise drive sprocket 3 and a pair of transmission helical gear in the middle of above-mentioned, the right major and minor helical gear 5 and 6 of described transmission helical gear respectively with drive sprocket 3 and rope sheave 8 coaxial rotation, the traction sheave of described rare earth permanent magnet dual-gripper traction machine 4 drives drive sprockets 3 rotations and once slows down through driving-chain 2, described drive sprocket 3 through described transmission helical gear to driving rope sheave 8 work and carrying out secondary speed-reducing.
Be provided with guiding mechanism 13 between the link of the sucker rod 14 of above-mentioned oil pump device 15 and work pull rope 10 and installation and maintenance pull rope 9, to adjust the tightening force of installation and maintenance pull rope 9 under the different conditions.
Described rope sheave 8, installation and maintenance pull rope 9, guide wheel 11 and guiding mechanism 13 are formed independently installation and maintenance haulage gear, to move upward at installation and maintenance time traction sucker rod 14.
The present invention forms system's closed-loop path control by rare earth permanent magnet synchro traction machine and master board and frequency converter, encoder control, and while rare earth permanent magnet synchro traction machine has its unique operating principle: (1) constant force square.(2) along with the size of load moment, output is variable.During operate as normal, because the effect to pouring weight reaches work and counterweight thermal energy balance substantially, thereby the actual output of operate as normal is very little, generally have only about 2kw, just can keep working properly, in case the down-hole changes or the medium variable needs big work capacity, will increase output to satisfy need of work because the main control system of closed loop is received the signal of control system this moment.Its operating rate can constantly keep.Work output variable.
Job step of the present invention is as follows: when 1, installing, instruct to host work by electric-control system, traction machine 4 is worked and is driven rope sheaves 8 running counterclockwise by middle transmission and reducing gear 7.The spring that at this moment must tighten guiding mechanism 13 in advance makes it to be in impaction state, and finished traction sucker rod 14 and risen to top dead centre by the work that cooperatively interacts of rope sheave 8, installation and maintenance pull rope 9, guide wheel 11 and guiding mechanism 13 this moment.
2, balance weight 12 and work pull rope 10 are installed, balance weight weight is adjustable, and work pull rope 10 should realize that with the method oil pump sucker rod 14 rises, the working condition that balance weight 12 descends around rope sheave 8 one circles to guarantee cornerite and tractive force.
3, the spring that loosens guiding mechanism 13 makes it to keep corresponding tightening force.The positive and negative work bout of main frame just drives oil pump working in reciprocating mode one jig frequency like this.
More than be preferred embodiment of the present invention, all changes of doing according to technical solution of the present invention when the function that is produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (5)
1, a kind of novel oilfield oil rig, comprise the oil pump device of being located on the oil well, it is characterized in that: also comprise rare earth permanent magnet variable-frequency motor power set, rope sheave and be set around work pull rope on the rope sheave, described rare earth permanent magnet variable-frequency motor power set drive the rope sheave running through middle transmission and reducing gear, described work pull rope one end is connected with the sucker rod of oil pump device and pumps to drive sucker rod, and the other end that described work pull rope is walked around rope sheave hangs and is provided with balance weight.
2, novel oilfield oil rig according to claim 1, it is characterized in that: described rare earth permanent magnet variable-frequency motor power set comprise rare earth permanent magnet dual-gripper traction machine, encoder, master board and frequency converter, described encoder is installed on the electric machine main shaft of traction machine and through holding wire and is connected with the signal input part of master board, with the tach signal of gathering electric machine main shaft and feed back to master board, realize the constant speed running set by the Frequency Converter Control traction machine more after treatment.
3, novel oilfield oil rig according to claim 2, it is characterized in that: transmission and reducing gear comprise drive sprocket and a pair of transmission helical gear in the middle of described, the right major and minor helical gear of described transmission helical gear respectively with drive sprocket and rope sheave coaxial rotation, the traction sheave of described rare earth permanent magnet dual-gripper traction machine drives the drive sprocket rotation and once slows down through driving-chain, described drive sprocket through described transmission helical gear to driving rope sheave work and carrying out secondary speed-reducing.
4, according to claim 1,2 or 3 described novel oilfield oil rigs, it is characterized in that: also be provided with the installation and maintenance pull rope on the described rope sheave, described installation and maintenance pull rope one end is fixedly connected on the rope sheave, and the other end is connected with sucker rod.
5, novel oilfield oil rig according to claim 4, it is characterized in that: be provided with guiding mechanism between the link of the sucker rod of described oil pump device and work pull rope and installation and maintenance pull rope, to adjust the installation and maintenance pull rope tightening force under the different conditions, described rope sheave, installation and maintenance pull rope and guiding mechanism are formed independently installation and maintenance haulage gear, to move upward at installation and maintenance time traction sucker rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201384075U CN201407018Y (en) | 2009-05-21 | 2009-05-21 | Novel oilfield pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201384075U CN201407018Y (en) | 2009-05-21 | 2009-05-21 | Novel oilfield pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407018Y true CN201407018Y (en) | 2010-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201384075U Expired - Fee Related CN201407018Y (en) | 2009-05-21 | 2009-05-21 | Novel oilfield pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407018Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286804A (en) * | 2016-10-21 | 2017-01-04 | 玉田县科联实业有限公司 | Producing well screw rod stepless speed-regulating device |
-
2009
- 2009-05-21 CN CN2009201384075U patent/CN201407018Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286804A (en) * | 2016-10-21 | 2017-01-04 | 玉田县科联实业有限公司 | Producing well screw rod stepless speed-regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20130521 |