CN2637720Y - Ultralarge suspension point load long stroke oil pump machine - Google Patents
Ultralarge suspension point load long stroke oil pump machine Download PDFInfo
- Publication number
- CN2637720Y CN2637720Y CN 03277040 CN03277040U CN2637720Y CN 2637720 Y CN2637720 Y CN 2637720Y CN 03277040 CN03277040 CN 03277040 CN 03277040 U CN03277040 U CN 03277040U CN 2637720 Y CN2637720 Y CN 2637720Y
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- rope
- long stroke
- pumping unit
- polished rod
- load long
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Abstract
The utility model provides a super-large polished rod load long stroke pumping unit which comprises a suspension rod beam, a suspension rod rope, a front head pulley, a rear head pulley and an electromotor and is characterized in that the electromotor and a small pulley are connected with a big pulley, and then are connected with a driving sprocket wheel and a driven sprocket wheel of a reductor and two closed cycle chains which are parallel to each other. The circulating shaft respectively adopt the suspension rod rope and a hanging load rope to bypass the front head pulley and the rear head pulley to connect with the suspension rod beam and a counterweight device; the electromotor actuates the two chains to rotate through a belt pulley and the driving sprocket wheel, and the circulating shaft actuates the suspension rod beam to move up and down to pump the oil to and fro. The utility model is characterized by long stroke, low frequency of stroke, large delivery capacity and high degree of balance, and is stable and reliable in communication and energy-saving and convenient to adjust the parameters, needs less maintenance and is suitable to manufacture super-large polished rod load long stroke pumping unit.
Description
Technical field
The utility model belongs to the oil-field oil pumper field, particularly a kind of super large polished rod load long stroke pumping unit.
Background technology
The oil field pumping production, conventional pumping unit adopts quadric chain.Long term production proves that there are a series of shortcomings in the oil pumper of this structure:
1, oil pumper requires very big starting torque, therefore requires to be equipped with high-power motor, and it is also high to consume energy.
2, equipment is relatively heavier, weighs 23～24 tons as 12 type machines, and 14 type machines reach 40 tons.
3, adjust relatively difficulty of parameter, comprising that jig frequency, stroke and the degree of balance are regulated all compare difficultly, because used counterweight is 2 a tons/piece, must use crane during adjustment.
Simultaneously, in actual production, particularly in straight well and horizontal combination, adopt in high-quality steam assisted gravity drainage (the being called for short SAGD) oil recovery, design parameters according to oil reservoir, strata pressure reaches 2～3Mpa, the temperature of saturation water is 210 ℃～230 ℃, and this also is the subsurface temperature of produced liquid in oil well, and the temperature of well head output liquid is about 200 ℃, maximum actual displacement should reach 300～350 tons/day, so the theoretical maximum discharge capacity of design should reach more than 700 tons/day, according to this designing requirement, in the time of can releasing the SAGD oil recovery, the manufacturing parameter of level is: 8 meters of strokes, jig frequency 5/min, pump footpath φ 127mm, polished rod load is 20 tons, this is one group of extraordinary parameter combinations, also is that conventional four-bar pumping unit institute is inaccessible at all.Because the highest daily fluid production rate of conventional machine only is tens tons.Therefore need a kind of super large polished rod load long stroke pumping unit of design to satisfy the requirement that SAGD recovers the oil.
Summary of the invention
The purpose of this utility model provides the operation of a kind of energy normal reliable, the super large polished rod load long stroke pumping unit of long service life.
According to super large polished rod load long stroke pumping unit of the present utility model, comprise hanging stick beam and hanging stick rope, preceding head sheave, back head sheave, motor, it is characterized in that motor links to each other with big belt wheel by grouped belt with small pulley, this big belt wheel and reductor drive sprocket link, the reductor drive sprocket links by a chaining bar and driven sprocket respectively, two chaining bars surround a drive sprocket and a driven sprocket respectively, the two ends of two chaining bars are connected on the specific links circulation axis between two chaining bars, constitute two and hang the closed circulation chain of parallel placement, circulation axis is connected with the hanging stick rope of walking around preceding head sheave, the suspending weight rope is walked around the below that the back head sheave is suspended on circulation axis by land wheel, and suspending weight rope bottom is provided with counter weight device.
According to super large polished rod load long stroke pumping unit of the present utility model, it is characterized in that described motor adopts cage type asynchronous motor, described grouped belt adopts narrow V belt.
Described chain strip adoption bushroller chain.
Described counter weight device is made up of ballast box, ballast box guide rail rope and guide rail rope holder.
Adopt super large polished rod load long stroke pumping unit of the present utility model, start motor,, the drive sprocket continuously-directional is rotated by small pulley, big belt wheel, reductor, drive closed circulation chain and circulation axis circular flow, when circulation axis was crossed the lower dead center rising, coupled hanging stick rope led through preceding head sheave, and hanging stick girder system system moves downward by deadweight, when circulation axis down moves above top dead centre, upwards promote by hanging stick rope pulling hanging stick beam, thereby realize that sucker rod pumps
Because the spigot that hangs the suspending weight rope of ballast box hangs on the below of circulation axis, therefore, the load of chain drive-belt operation is the Tension Difference of hanging stick rope and suspending weight rope, be that most external applied loads are balanced by ballast box, so the real work load of motor only is about 1/4th of polished rod load.So, just can select lower-powered motor for use, reduce power consumption.
In the utility model, the output torque M=PR of reductor (pumping phase load multiply by the drive sprocket radius) is irrelevant with the stroke length of oil pumper, increases stroke and not obvious increase machine weight, so can according to actual needs stroke be increased to more than 8 meters.
Because the driving wheel radius of clean-up that this machine adopted is little, so require the moment of torsion of reductor corresponding less.
The operating mechanism of this machine has been completely free of the characteristics of motion of crank connecting link, polished rod, the also simple harmonic motion of non-sinusoidal cuve, but square wave, the time more than 90% of the whole period of motion is uniform motion, effective power can improve more than 30%, add again and be easy to starting, therefore the installed capacity of motor is less, and reactive loss is few, and is very slight to the impact of electrical network, compare with the same model conventional pumping unit, can economize on electricity about 50%.
Because the every weight of counterweight in the ballast box only is 25 kilograms, can increase and decrease counterweight easily, makes the degree of balance up to 97%.Because long stroke, low jig frequency, commutating frequency is low, reversing shaft uniform motion all the time so reversing impact is little, can be realized complete machine even running and commutation in a circulation, system job rate height, maintenance load are few, field operation is convenient, steel cable long service life, complete machine (lighter by 40～50% than conventional machine) in light weight.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, super large polished rod load long stroke pumping unit of the present utility model, comprise hanging stick beam and hanging stick rope 5, preceding head sheave 7, back head sheave 8, motor, it is characterized in that motor links to each other with big belt wheel 10 by grouped belt with small pulley 2, this big belt wheel 10 and reductor drive sprocket 3 link, reductor drive sprocket 3 links with driven sprocket 6 by a chaining bar 15 respectively, two chaining bars surround a drive sprocket 3 and a driven sprocket 6 respectively, the two ends of two chaining bars 15 are connected on the specific links circulation axis 4 between two chaining bars, constitute two and hang the closed circulation chain of parallel placement, circulation axis 4 is connected with the hanging stick rope 5 of walking around preceding head sheave 7, suspending weight rope 9 is walked around the below that back head sheave 8 is suspended on circulation axis 4 by land wheel 11, and suspending weight rope 9 bottoms are provided with counter weight device.Among the figure 1 is production tree.
In specific embodiment, described motor 2 adopts cage type asynchronous motor, and described grouped belt adopts narrow V belt.Described chain 15 adopts bushroller chain.Described counter weight device is made up of ballast box 12, ballast box guide rail rope 13 and guide rail rope holder 14.Dress is the counterweight of 25kg/ piece in the described ballast box 12.
20 type machines for the super large polished rod load, the suspension point basic static capacity (BSC) rating is 200KN, jig frequency is 1.5～5/min, stroke is 7.99 meters, motor rated power is 45KW, and the motor rated revolution is 960rpm, and the reductor output torque is a 38kNm reductor sum than being 17.6, the speed reducer output shaft maximum (top) speed is 43.6rpm, and complete machine weight is 45 tons.
Claims (5)
1, a kind of super large polished rod load long stroke pumping unit, comprise hanging stick beam and hanging stick rope (5), preceding head sheave (7), back head sheave (8), motor, it is characterized in that motor links to each other with big belt wheel (10) by grouped belt with small pulley (2), this big belt wheel (10) and reductor drive sprocket (3) link, reductor drive sprocket (3) links by a chaining bar (15) and driven sprocket (6) respectively, two chaining bars surround a drive sprocket (3) and a driven sprocket (6) respectively, the two ends of two chaining bars (15) are connected on the specific links circulation axis (4) between two chaining bars, constitute two and hang the closed circulation chain of parallel placement, circulation axis (4) is connected with the hanging stick rope (5) of walking around preceding head sheave (7), suspending weight rope (9) is walked around the below that back head sheave (8) is suspended on circulation axis (4) by land wheel (11), and suspending weight rope (9) bottom is provided with counter weight device.
2, super large polished rod load long stroke pumping unit according to claim 1 is characterized in that described motor (2) adopts cage type asynchronous motor, and described grouped belt adopts narrow V belt.
3, super large polished rod load long stroke pumping unit according to claim 1 is characterized in that described chain (15) adopts bushroller chain.
4, super large polished rod load long stroke pumping unit according to claim 1 is characterized in that described counter weight device is made up of ballast box (12), ballast box guide rail rope (13) and guide rail rope holder (14).
5, super large polished rod load long stroke pumping unit according to claim 1, what it is characterized in that the interior dress of described ballast box (12) is the counterweight of 25kg/ piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277040 CN2637720Y (en) | 2003-07-18 | 2003-07-18 | Ultralarge suspension point load long stroke oil pump machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277040 CN2637720Y (en) | 2003-07-18 | 2003-07-18 | Ultralarge suspension point load long stroke oil pump machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637720Y true CN2637720Y (en) | 2004-09-01 |
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ID=34302586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277040 Expired - Fee Related CN2637720Y (en) | 2003-07-18 | 2003-07-18 | Ultralarge suspension point load long stroke oil pump machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637720Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100489347C (en) * | 2007-06-27 | 2009-05-20 | 鞍山市鑫宇机械有限公司 | Design calculation method for duplex speed reducer of giant tower type long-stroke pumping unit |
| CN106522890A (en) * | 2016-12-14 | 2017-03-22 | 燕山大学 | Double balance arm rope wheel type long-stroke oil pumping unit |
| CN109989728A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Pin shaft commutation type long stroke pumping unit |
-
2003
- 2003-07-18 CN CN 03277040 patent/CN2637720Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100489347C (en) * | 2007-06-27 | 2009-05-20 | 鞍山市鑫宇机械有限公司 | Design calculation method for duplex speed reducer of giant tower type long-stroke pumping unit |
| CN106522890A (en) * | 2016-12-14 | 2017-03-22 | 燕山大学 | Double balance arm rope wheel type long-stroke oil pumping unit |
| CN109989728A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Pin shaft commutation type long stroke pumping unit |
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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: 20040901 Termination date: 20110718 |