CN100585182C - High power oil-submersible linear permanent magnetic step motor plunger pump - Google Patents
High power oil-submersible linear permanent magnetic step motor plunger pump Download PDFInfo
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- CN100585182C CN100585182C CN200610047424A CN200610047424A CN100585182C CN 100585182 C CN100585182 C CN 100585182C CN 200610047424 A CN200610047424 A CN 200610047424A CN 200610047424 A CN200610047424 A CN 200610047424A CN 100585182 C CN100585182 C CN 100585182C
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- plunger pump
- motor
- step motor
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Abstract
The present invention relates to a high-power submersible linear permanent magnet step-by-step motor plunger pump. It has the features of saving energy source and high efficiency. It adopts high-power linear permanent magnet step-by-step motor as power system, and matches it with two double-acting plunger oil well pumps and a motor protector so as to form the invented high-power submersible linear permanent magnet step-by-step motor plunger pump. Said invention also provides the concrete structure of said submersible linear permanent magnet step-by-step motor.
Description
Technical field:
The present invention relates to the petroleum machinery technical field, exactly it is a kind of high power oil-submersible linear permanent magnetic step motor plunger pump.
Background technique:
At present, at petroleum industry system, extracting device of oil mainly contains submersible electric pump, screw pump and plunger pump etc., and using these pumps to recover the oil respectively has its excellent its shortcoming, and the oil-immersed pump discharge capacity is big, and operational administrative is simple, but the initial investment height, it is also high to consume energy; The less investment of screw pump initial stage, adaptability is extensive, but the life-span of pump is short, the rate of fault height.At present, adopt the common beam pumping unit of plunger pump to recover the oil and still occupy an leading position, technology maturation, device is durable, rate of fault is low, but complex structure, the sucker rod that needs ground pumping unit and last km to grow, system effectiveness is low, and it is higher particularly to consume energy.
Increase along with well depth and output, simultaneously along with complicated (, many sand sticking as height, many gas, water logging and the severe corrosive etc.) of oil mining condition, the shortcoming of sucker rod pumping equipment is more and more obvious, and the weight of pumping unit increases, the accident of sucker rod increases, and the oil pumping pump delivery descends.
In order to alleviate the weight of pumping unit, reduce the accident of sucker rod and exempt the characteristics that the oil well pump discharge capacity descends, must thoroughly change the working method of sucker rod pumping equipment, the development rodless pumping unit.The characteristics of rodless pumping unit are: the cancellation sucker rod, motor is moved on to the down-hole, and directly drive the pump oil pumping.Like this, just solve the eccentric wear phenomenon of sucker rod preferably, reduce the rate of fault of pumping unit, improve oil recovery efficiency.China Patent No. 200320129410.3 discloses the utility model patent that a kind of name is called " the energy-conservation submersible electric pump extracting device of oil that cylindrical shape rare earth permanent magnet linear motor drives ", it is made up of plunger pump and linear motor two-part, plunger pump places the linear electric motor lower end, and linear electric motor are the synchronous rare earth permanent magnet linear electric motor of cylindrical shape.China Patent No. 200420040122.5 discloses the model utility device that a kind of name is called " a kind of electromagnetic actuator device ", it adopts the injection moulding sealing with Electromagnetic Drive linear electric motor housing, to guarantee that burn into is not non-leakage in the underground solution of High Temperature High Pressure, body upper connects oil outlet tube, its linear electric motor axostylus axostyle adopts hollow circular-tube, as the oil pumping passage, at organism bottom and axostylus axostyle two ends up and down, be equipped with unidirectional make progress into and out of the fuel tap door.China Patent No. 200410023948.5 discloses a kind of name and has been called " the formula permanent magnet linear reciprocating pump of diving ", and its concrete structure is basic identical with the structure of above-mentioned model utility.Promptly adopt a plunger pump to be installed in the below of motor.
Summary of the invention:
The purpose of this invention is to provide a kind of high power oil-submersible linear permanent magnetic step motor plunger pump, it is a kind of rodless pumping unit, has higher efficient, and simple in structure, particularly has obvious energy-saving effect.
The present invention is achieved in that and adopts high-power linear permanent magnetic step motor as power system, mixes double-action plunger oil well pump and motor protecter and constitute.It comprises plunger pump and high power oil-submersible linear stepper motor; it is characterized in that: double-action plunger pump 1 (going up pump) and 4 (following pumps) are housed respectively in the above and below of oil-submersible linear permanent magnetic step motor 3, between double-action plunger pump 1 and linear permanent magnetic step motor 3, protector 2 are housed.
Oil-submersible linear permanent magnetic stepping motor 3 is a cylindrical structural, there are stator that winding is housed and reciprocating hollow permanent magnetism mover (the permanent magnetism mover is to be made of rare-earth permanent magnet and pole shoe) in inside, linear permanent magnetic step motor produces vertical stepping magnetic flux, utilizes the metallic shield sealing.Make between its stator and permanent magnetism mover and isolate; Vertically stepping flux interaction permanent magnetism mover makes it produce to-and-fro motion, drives double-action plunger pump, realize oil pumping, guarantee the no impact work of down-hole unit simultaneously by working successively of two pumps (upper and lower pump), increased the oil recovery effect of this system simultaneously, saved a large amount of energy.The liquid that is extracted is discharged by hollow guide rod, is sent to ground through production tree.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the theory structure schematic representation of three-phase permanent formula linear stepping motor.
Fig. 3 is the connection diagram of three phase windings of three-phase permanent formula linear stepping motor.
Fig. 4 is τ
t, and P between concern schematic representation.
τ
tBe the stator tooth distance, P is the pole span of mover.
Embodiment:
The present invention adopts high-power linear permanent magnetic step motor as power system first, mixes double-action plunger oil well pump and motor protecter and constitutes.Because high-power linear permanent magnetic step motor driving force is very big, heating value is little, and the system effectiveness height by its high power oil-submersible linear permanent magnetic step motor plunger pump system that constitutes, is seen accompanying drawing 1.Linear stepping motor is called for short LPM, is that a kind of electrical pulsing signal with input converts the straight-line drive unit of micro-stepping to.When this motor adds an electrical pulse, will transport point-blank and move a step and be locked in exactly on the desirable position.Because its forms of motion is the straight line stepping, thereby be called linear stepping motor.Linear stepping motor can be widely used in various precision equipments, in the middle of fields such as autograph, computer equipment, intelligent instrumentation, robot, electronic equipment and various automation detection, control.
The linear stepping motor of open loop can provide positioning control most economical solution.The current pulse signal of input straight line, can provide by digital controller or Microsoft's processor. linear stepping motor is under the condition that does not need closed loop control system, certain precision and reliable position and speed controlling can be provided, this be general linear electric motor can not accomplish.Linear stepping motor is simple in structure, and moving element is in light weight, inertia is little, do not have drift, do not have the accumulation positioning error, driving force is big, and under open loop controlled conditions, just can accomplish high speed, high position precision.In the control system of some high requests, this is a kind of desirable linear drive.
The magnetic force of permanent-magnet linear stepping motor inside is only produced by the impulsive current by each phase winding.This stepping motor has three groups of windings at least.When a certain phase or two phase windings had impulsive current to pass through, the magnetic flux that these phase winding magnetic potentials produce always ran toward the path of magnetic resistance minimum.Have according to the magnetic line of force and to try hard to shorten magnetic flux path to reduce the person's character that the magnetic group increases magnetic conductance, motor is fixed, will exist a kind of as far as possible diminish magnetic force of tendency of flux paths magnetic resistance that makes between mover, haul the position that electric mover arrives the magnetic circuit magnetic resistance minimum of this magnetic flux correspondence, thereby make electric mover produce step motion.Accompanying drawing 2 is principle assumption diagrams of three-phase permanent formula linear stepping motor.Stationary part is one round laminated core normally, and both sides have a lot of evenly parallel slots of Distributed Winding up and down.Mover is that the magnet steel of a pair of N, S alternate layout is formed, and is installed in equably on the pipe mover supporting frame.The connection of three phase windings as shown in Figure 3, the core portion of being surrounded by winding is called the magnetic pole of electric mover, each pole surface have usually with stator tooth apart from τ
tIdentical some teeth groove, the distance between three iron beams on the mover is called the pole span of mover
P
t, it and stator tooth are apart from τ
tBetween relation as shown in Figure 4, must satisfy the following relationship formula
P
t＝(M+1/3)τ
t
M--arbitrary integer in the formula.
When the A phase winding feeds impulsive current, and other phase winding electric currents are when being zero, the magnetic flux maximum in the A phase iron beam, and suffered magnetic force maximum, so the position of electric mover is mainly decided by the position of the magnetic pole tooth alignment stator tooth of A phase.Because this moment A phase magnetic flux correspondence magnetic circuit magnetic resistance minimum.If three phase windings are by A → B → C → when A rotation flow-thru electrode was encouraged, then mover was just with τ
t/ 3 step pitch moves do stepping.So-called step pitch is exactly whenever logical electrical pulse, and mover just moves and moves a step, and is commonly called as operation one bat.If operation m
1After the bat, mover just in time moves a tooth pitch, and then the step pitch resolution of this stepping motor just is R=τ
t/ m
1When three-phase stepper motor during with three-phase three beat runnings, we just say that it obtains τ
t/ 3 resolution.If adopt the mode of A → (A+B) → B → (B+C) → C → (C+A) → A to switch in proper order, this moment, this motor just can obtain τ
t/ 6 resolution.
High-power linear permanent magnetic step motor can customized or outsourcing, plunger pump outsourcing or production voluntarily, the Placement of plunger pump and motor is same as the prior art, can be connected by connecting rod and stepper motor, but should be at the upper and lower plunger pump that all is equipped with of stepper motor, the top of pump is equipped with outlet valve, oil outlet tube and pressure gauge and goes out annex commonly used such as oil switch, and when the hollow axis pole to-and-fro motion, crude oil enters oil pipe continuously and is drawn out of under upper and lower plunger pump effect.
Claims (2)
1, high power oil-submersible linear permanent magnetic step motor plunger pump, it comprises plunger pump and high power oil-submersible linear stepper motor, it is characterized in that: adopt linear permanent magnetic step motor as power system, mixing double-action plunger oil well pump and motor protecter constitutes, the above and below of oil-submersible linear permanent magnetic step motor (3) is equipped with double-action plunger pump (1 respectively, 4), oil-submersible linear permanent magnetic step motor (3) is a cylindrical structural, there are stator that winding is housed and reciprocating hollow permanent magnetism mover in inside, the permanent magnetism mover is to be made of rare-earth permanent magnet and pole shoe, linear permanent magnetic step motor produces vertical stepping magnetic flux, utilize the metallic shield sealing, make between its stator and permanent magnetism mover and isolate; Vertical stepping flux interaction permanent magnetism mover, make it produce to-and-fro motion, drive double-action plunger pump, realize oil pumping, stepping motor has three groups of windings at least, stationary part is one round laminated core normally, both sides have a lot of evenly parallel slots of Distributed Winding up and down, and mover is that the magnet steel of a pair of N, S alternate layout is formed, and is installed in equably on the pipe mover supporting frame, the core portion of being surrounded by winding is called the magnetic pole of electric mover, each pole surface have usually with stator tooth apart from τ
tIdentical some teeth groove, the distance between three iron beams on the mover is called the pole span P of mover
t, it and stator tooth are apart from τ
tBetween relation must satisfy the following relationship formula
P
t＝(M+1/3)τ
t
M in the formula---arbitrary integer
If three phase windings are by A → B → C → when A rotation flow-thru electrode was encouraged, then mover was just with τ
t/ 3 step pitch moves do stepping, if adopt the mode of A → (A+B) → B → (B+C) → C → (C+A) → A to switch in proper order, this moment, this motor just can obtain τ
t/ 6 resolution.
2, according to claim 1 described high power oil-submersible linear permanent magnetic step motor plunger pump, it is characterized in that: between double-action plunger pump (1) and linear permanent magnetic step motor (3), protector (2) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610047424A CN100585182C (en) | 2006-08-10 | 2006-08-10 | High power oil-submersible linear permanent magnetic step motor plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610047424A CN100585182C (en) | 2006-08-10 | 2006-08-10 | High power oil-submersible linear permanent magnetic step motor plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101050765A CN101050765A (en) | 2007-10-10 |
| CN100585182C true CN100585182C (en) | 2010-01-27 |
Family
ID=38782326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610047424A Expired - Fee Related CN100585182C (en) | 2006-08-10 | 2006-08-10 | High power oil-submersible linear permanent magnetic step motor plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100585182C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272226A (en) * | 1979-01-08 | 1981-06-09 | Osborne Harry E | Fluid pump and method for operating same |
-
2006
- 2006-08-10 CN CN200610047424A patent/CN100585182C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272226A (en) * | 1979-01-08 | 1981-06-09 | Osborne Harry E | Fluid pump and method for operating same |
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|---|---|
| CN101050765A (en) | 2007-10-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ji Xuedong Inventor after: Guo Renxiang Inventor after: Liang Zian Inventor after: Li Xiaonan Inventor before: Ji Xuedong Inventor before: Guo Renxiang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JI XUEDONG GUO RENXIANG TO: JI XUEDONG GUO RENXIANG LIANG ZIAN LI XIAONAN |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20130810 |