CN1089139C - Full-balanced long-stroke pumping unit with flexible drive parts - Google Patents
Full-balanced long-stroke pumping unit with flexible drive parts Download PDFInfo
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- CN1089139C CN1089139C CN98121584A CN98121584A CN1089139C CN 1089139 C CN1089139 C CN 1089139C CN 98121584 A CN98121584 A CN 98121584A CN 98121584 A CN98121584 A CN 98121584A CN 1089139 C CN1089139 C CN 1089139C
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Abstract
The present invention belongs to the technical field of an oil extraction mechanical device, which relates to an oil pumping machine. The present invention is characterized in that the lower right end of a front auxiliary belt 14 is fixed on a driving wheel 15, and the front auxiliary belt 14 is connected with a belt hanging device 3 after the front auxiliary belt 14 passes round a front guide wheel 8; the lower left end of a back auxiliary belt 13 is fixed on the driving wheel 15, and the back auxiliary belt 13 is connected with an auxiliary balance weight 12 after the back auxiliary belt 13 passes round a back guide wheel 9; a main belt 10 passes through the front guide wheel 8 and the back guide wheel 9; the lower right end of the main belt 10 is connected with a main balance weight 11, and the lower left end of the main belt 10 is connected with the belt hanging device 3; a polished rod 2 is arranged on a cross beam of the belt hanging device 3 through a square clip which is clamped on the upper end of the polished rod. The present invention has the advantages of novel structure, high oil pumping efficiency, energy saving, etc. Compared with a conventional walking beam type oil pumping machine, the oil pumping machine can save electricity by 30% to 50%, and can increase yield by 50% to 100%.
Description
The invention belongs to the oil recovery machiner equipment technical field.
Sucker rod pumping is one of method of topmost recover petroleum on the our times, accounts for more than 90% in China.Sucker rod pumping equipment mainly is conventional beam-pumping unit, and this type has higher reliability because long-term improvement is perfect, but its main shortcoming is the stroke weak point, and energy consumption is big, and pumping efficiency is low.External long stroke pumping unit development rapider, its form is varied, and using maximum is the pylon roller type, and representative is French MAPE long stroke pumping unit and U.S. ROTAFLEX type long stroke pumping unit.The development work of China's long stroke pumping unit has bigger progress in recent years, has released multiple novel long stroke pumping unit.LCJ type chain making machine is the long stroke pumping unit of China's initiative, is characterized in utilizing specific links and slide block on the chain to drive the to-and-fro motion that comes and goes frame realization polished rod, adopts the gas balance.The ubiquitous problem of this chain making machine is that fault is frequent, poor reliability, only four months its mean free error time (2900 hours), this is mainly by its reversing principle decision, promptly the commutation cause bigger dynamic load, reduced the chain life-span, the chain mean lifetime be 17 months about 12000 hours; Secondly, the compensating cylinder wearing and tearing cause gas leakage, leakage of oil, and wire rope is easily broken in addition, guide rail rigidity deficiency and polished rod protective system imperfection cause that it also is the reason that causes fault that lifting rope kinks.SRC type long stroke pumping unit is a second generation chain making machine, and this machine adopts the rare-earth synchronous motor frequency control of motor speed, realizes clockwise and anticlockwise by inverter control, and by retarder, chain-driven, rope hanger drive polished rod and move up and down.This machine technology equipment is advanced, has adopted Numeric Control Technology.But complete machine cost height at present domesticly still can not be made high-test chain, and the homemade chain life-span is short, chain to vibration, unbalance loading is responsive and need good lubricating condition, the processing of having relatively high expectations, installation precision and good maintenance.KCJ type reel broadband type long stroke pumping unit also is a kind of type of domestic development, and this machine adopts underbalance, sucker rod by deadweight realization down stroke, thereby each operation cycle motor only need commutate once, has reduced the motor commutation frequency.In addition, owing to adopt synchronous priming technique to reduce the electric motor starting electric current, improved the commutation reliability.The broadband machine adopts motor commutation, and through the retarder reel, adhesive tape drives polished rod and moves up and down, and is easy to realize long stroke, and it is convenient to adjust stroke.Flexible member adopts normal tape, and mean lifetime greatly improves than wire rope and chain, can surpass more than 2 years, and adhesive tape can be alleviated dynamic load, and is low to the installation and processing required precision, thereby the reliability height.On principle, the problem of this type is: owing to adopt the underbalance power of motor to be greater than interior average power of operation cycle; The polished rod free fall can not be controlled, and is unsuitable for using in sticking oily viscous crude area; In addition, wide adhesive tape wind resistance is big, particularly at shallow well, and when breeding is light, adhesive tape wind-engaging power effect and swing and can not work; Electrical apparatus element accident rate height; The adhesive tape riveted joint is unreliable, is easy to fracture.In sum, also there are many deficiencys in long stroke pumping unit, is badly in need of improvement and perfect.
The object of the present invention is to provide a kind of novel long stroke pumping unit, these facility have novel structure, and energy consumption is low, the pumping efficiency height, and the little advantage such as safe and reliable of reversing impact power is particularly in the petroleum production in deep-well, viscous crude area.
This long stroke pumping unit, form by motor 18, joined v-belt 17, retarder 16, pylon 4, support 7, it is characterized in that: motor 18, retarder 16 are installed on the bottom platform of pylon 4, joined v-belt 17 connection motors 18 and retarder 16 are with transferring power, the output shaft of retarder 16 connects with driving wheel 15 usefulness shaft joints, the forward and backward guide wheel 8,9,9 of installation on the forward and backward support of day vehicle seat 5 '; The bottom righthand side of preceding subband 14 is fixed on the driving wheel 15, and preceding subband 14 is walked around front jocket wheel 8 backs and connected with sling device 3, and back subband 13 lower-left ends are fixed on the driving wheel 15, and after back subband 13 was walked around back guide wheel 9, its bottom righthand side was connected with secondary counterweight 12; Master tape 10 process front jocket wheels 8 and back guide wheel 9 ', its bottom righthand side is connected with main counterweight 11, and the lower-left end is connected with sling device 3; Polished rod 2 is sitting on the crossbeam of sling device by the square clamp that is clamped on the polished rod upper end; Master tape 10, preceding subband 14 and back subband 13 can adopt steel cable belt and high strength fibre rope, also can making of cartridge type of driving wheel 15, front jocket wheel 8 and back guide wheel 9,9 ' can be made into is wheeled, driving wheel 15 and front jocket wheel 8 all are respectively one, and three on back guide wheel 9,9 ' be is with the identical guide wheel of shaft diameter; Preceding subband 14 and back subband 13 can intercross arrangement also can open type be arranged on driving wheel 15; Will adorn running wheel on the major and minor counterweight, major and minor counterweight 11,12 can be made main body and adjustable two-part, and adjustable part is made plurality of small blocks, so that transposing.
The clockwise and anticlockwise of motor 16 is realized by electric control system control.
The weight sum of main counterweight 11 and secondary counterweight 12 just is decided to be the weight that equals the oil well oil-pumping leverage and adds 1/2nd of lifting fluid column weight.Like this, requiredly during motor positive and inverse (upper punch, Xia Chong) overcome working resistance and be half gravity that is raised fluid column in the oil well, energy consumption is minimum.Also have influences such as inertial force, surface friction drag during the pumping unit actual motion, can adjust the weight of secondary counterweight 12, the electric current of upper and lower stroke is equated or approaching equating.
Major and minor counterweight branch is arranged, the radial force of being convenient to adjust balance and can reducing driving wheel 15, and belt length does not wait the loose zoning that causes when having avoided simultaneously owing to driving wheel 15 windings and relieving yet.
Drawings and Examples:
Fig. 1 is the structural representation front view of long stroke pumping unit
Fig. 2 is the structural representation side view of long stroke pumping unit
Fig. 3 is that long stroke pumping unit M is to view
Fig. 4 is the layout plan of front and back subband on driving wheel
Accompanying drawing 1 is that (see Fig. 1, motor 18, retarder 16 Fig. 2) are installed on the bottom platform on the pylon, joined v-belt 17 connection motors 18 and retarder 16 are with transferring power for an embodiment disclosed by the invention.The output shaft of retarder 16 connects with driving wheel 15 usefulness coupling, and the lower right part of preceding subband 14 is fixed on the driving wheel 15, and preceding subband 14 is walked around front jocket wheel 8 backs and linked with sling device 3, and the lower-left end of back subband 13 is fixed on the driving wheel 15.After back subband 13 was walked around back guide wheel 9, its bottom righthand side and secondary counterweight 12 linked; Master tape 10 is through front jocket wheel 8 and back guide wheel 9, and its bottom righthand side connects with main counterweight 11, and the lower-left end connects with sling device 3, and sucker rod 2 is sitting on the crossbeam of sling device 3 by the square clamp that is clamped on the polished rod upper end.In the present embodiment, master tape 10, preceding subband 14 and back subband 13 adopt steel cable belt, driving wheel 15, front jocket wheel 8 and back guide wheel 9,9 ' be processed to the (see figure 3) of cartridge type, preceding subband 14 and back subband 13 are to intersect on driving wheel 15 arranges (see figure 4), and the installation running wheel moves up and down them in orbit on the major and minor counterweight.During work, upstroke, motor 18 is just changeing (Fig. 1 clockwise direction) and is clockwise rotating by joined v-belt 17, retarder 16, driving driving wheel 15, thereby subband 14 rises sling device 3 and 2 liftings of drive polished rod before twining.Simultaneously, driving wheel 15 is decontroled back subband 13, and secondary counterweight 12 is descended under the deadweight effect.Down stroke, motor 18 counter-rotatings (Fig. 1 is counterclockwise) drive driving wheel 15 and counterclockwise rotate, and twine back subband 13 secondary counterweight 12 is promoted, and subband 14 makes sling device 3 descend together with polished rod 2 before decontroling simultaneously.
In order just to overcome, inverse transform to the time system inertia influence, reduce period of braking, guarantee required jig frequency, the present invention has considered two measures: the one, and utilize driving wheel 15 strip windings and the diameter difference of putting band to form opposing torque, for example counterweight 11,12 when reducing to the limit inferior position, motor cuts off the power supply, the winding radius minimum of back subband 13 on driving wheel 15, at this moment sling device 3 is in the limes superiors position, the preceding winding radius maximum of subband 14 on driving wheel 15, thereby leverage gravity is to the moment of driving wheel 15 moment greater than 12 pairs of driving wheels 15 of secondary counterweight, both differences form opposing torque, stop leverage to continue to move upward, and help leverage oppositely to move downward by inertia.In like manner, this opposing torque can stop counterweight to continue to move upward limes superiors position (motor cuts off the power supply), and help it oppositely, move downward.The 2nd, a certain position that reaches before the upper and lower limit position at sling device 3 (or counterweight) makes the motor outage, makes the kinetic energy of system be converted into the potential energy of rising part (leverage or counterweight).Because of braking brake is not used in this invention, like this can be energy-conservation to greatest extent.
When workover eration, the realization well workover that the present invention can the be easy operation of stepping down: after shutting down brake, earlier polished rod 2 is stuck on the well head dust shield case, unclamps the polished rod side's clamp on the sling device crossbeam.The support 7 of front jocket wheel 8 is got up by wire rope and clip and master tape 10, after unclamping the connecting bolt 6 of fore poppet 7 and day vehicle seat 5, unclasp rim brake 1 off and on, because can driving, the gravity of main counterweight 11 moves 0.8m after support 7 changes 75 ° (have grade iron spacing) together with front jocket wheel 8 backs, after workover eration finished, positive turning point car can make support 7 reset.
Equally, the present invention's measuring indicator diagram easily.With polished rod 2 after blocking with square clamp above the dust shield case, the counter-rotating of crawl motor, secondary counterweight 12 is risen, at this moment because polished rod blocks motionless, the also motionless thereby secondary counterweight 12 of counterweight 11 will hold up main counterweight 11, thereby master tape 10 is loosened, between sling device crossbeam and upper end polished rod clamp, form enough spaces and can put into the power work indicator.
This pumping unit can remove master tape 10 for the stable pumping unit of hole condition, and subband 14, back subband 13, counterweight 11,12 are combined into one before only keeping, also can normal operation.
This invention has novel structure, and energy consumption is low, the pumping efficiency advantages of higher, conventional trip Girder-like oil pump can economize on electricity about 30%～50%, volume increase about 50%～100%.
Claims (7)
1, a kind of long stroke pumping unit, by motor (18), joined v-belt (17), retarder (16), pylon (4) and support (7) are formed, it is characterized in that: motor (18) is installed in the bottom at pylon (4), retarder (16), joined v-belt (17) connection motor (18) and retarder (16) are with transferring power, the output shaft of retarder (16) connects with shaft joint with driving wheel (15), before it vehicle seat (5), before installing on the back poppet, back guide wheel (8), (9), (9 '), the bottom righthand side of preceding subband (14) is fixed on the driving wheel (15), and preceding subband (14) is walked around front jocket wheel (8) back and linked with sling device (3); Back subband (13) lower-left end is fixed on the driving wheel (15), and after back subband (13) was walked around back guide wheel (9), its bottom righthand side was connected with secondary counterweight (12); Master tape (10) is through front jocket wheel (8) and back guide wheel (9 '), and its bottom righthand side is connected with main counterweight (11), and the lower-left end is connected with sling device (3); Polished rod (2) is sitting on the crossbeam of sling device (3) by the square clamp that is clamped on the polished rod upper end.
2, long stroke pumping unit according to claim 1 is characterized in that: master tape (10), preceding subband (14), back subband (13) can adopt steel cable belt, also can adopt the high strength fibre rope.
3, according to the long stroke pumping unit shown in the claim 1, it is characterized in that: driving wheel (15), front jocket wheel (8), back guide wheel (9), (9 ') can be made into cartridge type, also can make wheeled.
4, long stroke pumping unit according to claim 1 is characterized in that: main counterweight (11), secondary counterweight (12) go up installs running wheel.
5, long stroke pumping unit according to claim 1 is characterized in that: main counterweight (11) and secondary counterweight (12) can be made main body and adjustable two-part, and adjustable part is made plurality of small blocks.
6, long stroke pumping unit according to claim 1.It is characterized in that: preceding subband (14) and back subband (13) can intercross arrangement also can open type be arranged on driving wheel (15).
7, long stroke pumping unit according to claim 1.It is characterized in that: driving wheel (15) and front jocket wheel (8) all are respectively one, back guide wheel (9), (9 ') be three with the identical guide wheel of shaft diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98121584A CN1089139C (en) | 1998-11-10 | 1998-11-10 | Full-balanced long-stroke pumping unit with flexible drive parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98121584A CN1089139C (en) | 1998-11-10 | 1998-11-10 | Full-balanced long-stroke pumping unit with flexible drive parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1253228A CN1253228A (en) | 2000-05-17 |
| CN1089139C true CN1089139C (en) | 2002-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98121584A Expired - Fee Related CN1089139C (en) | 1998-11-10 | 1998-11-10 | Full-balanced long-stroke pumping unit with flexible drive parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089139C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010111911A1 (en) * | 2009-04-01 | 2010-10-07 | Jin Chengqun | Wheel pumping unit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400663A (en) * | 2010-09-09 | 2012-04-04 | 山东金威力石油装备制造有限公司 | Oil-pumping unit of ultra-deep well |
| CN102052063A (en) * | 2010-12-30 | 2011-05-11 | 金成群 | Long-stroke energy-saving oil pumping unit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460038A (en) * | 1982-01-12 | 1984-07-17 | Societe Nationale Elf Aquitaine | Installation for testing a well and a process for use thereof |
| US4651582A (en) * | 1986-01-27 | 1987-03-24 | Bender Emil A | Counterbalanced pumps |
| US4665761A (en) * | 1985-03-19 | 1987-05-19 | North China Petroleum Machinery Repairing Plant | Long stroke pumping unit |
| CN87216773U (en) * | 1987-12-21 | 1988-09-07 | 钟有学 | Rotary drum type beam-pumping unit |
| CN87103481A (en) * | 1987-05-15 | 1988-11-23 | 兆文清 | Long stroke beam-pumping unit with chain without sliding beam |
| CN2068607U (en) * | 1990-02-09 | 1991-01-02 | 严增寿 | Double pendulum long stroke beam-pumping unit |
| CN2112684U (en) * | 1991-05-29 | 1992-08-12 | 机械电子工业部郑州机械研究所 | Long stroke platform drum oil pump |
| US5375657A (en) * | 1992-07-05 | 1994-12-27 | Oil Production Technology Institute | Chain long-stroke oil-well pumping unit |
-
1998
- 1998-11-10 CN CN98121584A patent/CN1089139C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460038A (en) * | 1982-01-12 | 1984-07-17 | Societe Nationale Elf Aquitaine | Installation for testing a well and a process for use thereof |
| US4665761A (en) * | 1985-03-19 | 1987-05-19 | North China Petroleum Machinery Repairing Plant | Long stroke pumping unit |
| US4651582A (en) * | 1986-01-27 | 1987-03-24 | Bender Emil A | Counterbalanced pumps |
| CN87103481A (en) * | 1987-05-15 | 1988-11-23 | 兆文清 | Long stroke beam-pumping unit with chain without sliding beam |
| CN87216773U (en) * | 1987-12-21 | 1988-09-07 | 钟有学 | Rotary drum type beam-pumping unit |
| CN2068607U (en) * | 1990-02-09 | 1991-01-02 | 严增寿 | Double pendulum long stroke beam-pumping unit |
| CN2112684U (en) * | 1991-05-29 | 1992-08-12 | 机械电子工业部郑州机械研究所 | Long stroke platform drum oil pump |
| US5375657A (en) * | 1992-07-05 | 1994-12-27 | Oil Production Technology Institute | Chain long-stroke oil-well pumping unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010111911A1 (en) * | 2009-04-01 | 2010-10-07 | Jin Chengqun | Wheel pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1253228A (en) | 2000-05-17 |
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Granted publication date: 20020814 Termination date: 20121110 |