CN1991170A - Double mule head secondary regulation hydraulic pumping unit - Google Patents
Double mule head secondary regulation hydraulic pumping unit Download PDFInfo
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- CN1991170A CN1991170A CN 200510131356 CN200510131356A CN1991170A CN 1991170 A CN1991170 A CN 1991170A CN 200510131356 CN200510131356 CN 200510131356 CN 200510131356 A CN200510131356 A CN 200510131356A CN 1991170 A CN1991170 A CN 1991170A
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Abstract
The invention relates to a novel beam mechanical pumping unit. Based on the frame of prior beam mechanical pumping unit, a horse-head is added at the other end of beam. Mechanical transporting device for driving pumping bar move is all canceled and a secondary-adjusting hydraulic transporting device is added at the original position. A hydraulic cylinder is set under the added horse-head, which is under the ground deeply. Oil production of pumping bar is driven by the cylinder, which is the biggest characteristic of the invention. The new scheme is especially applied in the status with long stroke (6-10m), deep oil well (3000m or more than 3000m), heavy load and heavy oil. In the invention, the hydraulic cylinder with high pressure in innovate design has been manufactured, assembled and succeeded to run normally. On the innovate sealing integrated structure of piston and piston bar, there is sealing material, which is designed in innovation and selected correctly. Practice shows that it is stable and applicable under high pressure.
Description
Technical field:
The invention belongs to the oil recovery machiner field of petroleum industry.
Background technique:
At present, the used oil recovery machiner overwhelming majority is beam pumping unit (being commonly called as the machine of kowtowing) on the oil field both at home and abroad, and in mechanical oil recovery equip ment, the ratio of the machine of kowtowing is: China 91%, the U.S. 85%, Russia 75%.Know it by motor 46 from Fig. 4, belt pulley 47,49, speed reducer 51, crank 52, connecting rod 53, walking beam 33, horse head 28 is formed.Its advantage is: durable in use under the situation of round-the-clock use, simple in structure, easy to manufacture, easy to maintenance.Shortcoming is: the acceleration of horse head point suspension movement is big, and counterbalance effect is poor, and efficient is lower, changes stroke, jig frequency is very difficult, and very limited.
Summary of the invention:
The present invention is on the basis of beam pumping unit frame, removes mechanical actuation device, changes the secondary regulation hydraulic drive unit into.Fig. 1 is the overall diagram of this device, and the power unit of oil pumping motion is an oil hydraulic cylinder 35.On the complete machine structure layout, adopt two horse heads 28, the 28a form, an end is a sucker rod 31, the other end is the oil hydraulic cylinder 35 under in depth.This is a maximum technical characteristics of the present invention.When realizing complete machine structure technological scheme of the present invention, on original machine walking beam of kowtowing, increase a horse head, on gantry base, remove whole mechanical movement means, acquire the pumping plant of a cover secondary regulation hydraulic system.Fig. 2 is the hydraulic work schematic diagram, and main pump/motor 38 is the variable displacement hydraulic dynamical element with auxiliary pump/motor 39, the two be pump be again oil hydraulic motor.So be called secondary component, its pump state or oil hydraulic motor state are become the discharge capacity adjusting, be secondary and regulate.These two unipumps that Hydraulic power units is coaxial connection, but the adjusting of the discharge capacity of major-minor pump/motor 38,39 is finished by the control electro-hydraulic proportional valve with the import and export change of crossing meta.
1. sucker rod 31 up strokes recover the oil
Main pump/motor 38 is in the pump state, and auxiliary pump/motor 39 is in the oil hydraulic motor state, and motor 37 drives main pump/motor 38, and pressure oil directly enters oil hydraulic cylinder 35, and piston rod 32 descends, and by two horse heads 28,28a and walking beam 33 pulling sucker rods 31 rise and recover the oil.Simultaneously, in previous sucker rod decline stroke, auxiliary pump/motor 39 is in the pump state, in accumulator, store pressure oil, when sucker rod rose oil recovery, by the oil hydraulic motor state of auxiliary pump/motor 39, the process shaft coupling was converted to air horsepower with the pressure flow of accumulator, drive main pump/motor 38 with motor 37, the pressure oil of generation drives oil hydraulic cylinder 35 rises sucker rod.This is the great advantage and the characteristics of secondary regulation hydraulic system, and the power that promptly promotes sucker rod is assisted the power that adds auxiliary pump/motor 39 again except that the power of motor 37.This part is auxilliary, and to add power be deadweight produces when descending by fluid column in oil well pump, sucker rod and the pit shaft potential energy becomes the hydraulic pressure energy of accumulator by auxiliary pump/motor 39, becomes air horsepower by auxiliary pump/motor 39 again then and remove to drive main pump/motor 38.This is the power that reclaims.It is big characteristics that the used hydraulic system of the present invention leans on Power Recovery energy-conservation.
2. sucker rod 31 decline stroke oil suctions
Main pump/motor 38 is in the oil hydraulic motor state, and auxiliary pump/motor 39 is in the pump state.Hydraulic jack 35 pressure oil of sucker rod 31 potential energy generation thus drives the main pump/motor 38 that is in the oil hydraulic motor state, at this moment, is in auxiliary pump/motor 39 oil-filled accumulation of energy in accumulator of pump state, so that sucker rod 31 uses when next one oil recovery stroke.
When the hydraulic system that secondary of the present invention is regulated can also be implemented in stuck in sucker rod 31 ascending and descending process (often taking place in the oil recovery); can effectively in time protect aboveground underground equipment; avoid damage; the safety valve 44 among Fig. 2 and the effect of one-way valve 45 are when sucker rod 31 rising oil recoveries are stuck; hydraulic oil meeting superpressure; promptly by 44 drainings of the safety valve among Fig. 2; be that hydraulic oil in main pump/motor 38 is by safety valve 44 drainings; enter the lower inlet of main pump/motor 38 then; form short-circuit cycle, with the safety of protective system.When sucker rod 31 decline strokes are stuck, be in the pressure oil of main pump/motor 38 lower exits of oil hydraulic motor state, enter the inlet on main pump/motor 38 tops via one-way valve 45, form short-circuit cycle, with the safety of protective system.The change stroke of sucker rod 31 is decided by the position of regulating limit switch.Can realize stepless change stroke, very convenient.Sucker rod 31 changes jig frequency, is regulated by the flow that changes main pump/motor 38, can realize stepless change jig frequency, promptly realizes stepless change.
The pluses and minuses of the slide beam machinery pumping unit of secondary regulation hydraulic oil rig of the present invention and system are compared as follows shown in the table:
Mechanical Driven and hydraulic driving pumping unit are relatively
(++ fine+better-relatively poor--very poor)
| Item compared | Slide beam machinery pumping unit (machine of kowtowing) | Secondary regulation hydraulic pumping unit | ||
| Become stroke | - | Generally can change three crank radius | ++ | Be in operation and make things convenient for the stepless change limit switch to change stroke |
| Maximum stroke | - | 5 meters, great majority are about in the of 3 meters | ++ | 10 meters |
| Become jig frequency | - | Change the belt pulley of different-diameter | ++ | Make things convenient for the stepless change pump delivery |
| The rise and fall stroke is speed change respectively | -- | Impossible | ++ | Make things convenient for stepless change rise and fall speed respectively, can realize fast slow down |
| Energy recovery and energy-conservation | + | By equilibrium block recovery section potential energy | ++ | Reclaim potential energy by accumulator, the rated power of motor only is half of the required peak output of sucker rod |
| Overload during rising | -- | Cause the destruction of sucker rod or underwell pump | ++ | The safety valve protection is arranged |
| Underwell pump is stuck during decline | -- | Wire rope is lax, and and then the danger of snapping just arranged | ++ | The one-way valve protection is arranged |
| Quicken in the lower end reversal point | ++ | Drive steadily acceleration by crank mechanism | ++ | Realize steadily quickening by control system |
| Use and maintenance | ++ | Easy | - | Need hydraulics knowledge, hydraulic oil will be strictly on guard against pollution |
| Ambient temperature | ++ | Insensitive | + | Sensitivity is provided with heat radiation and heating equipment |
| Complete machine weight | -- | Heavy | ++ | Be mechanical 1/3～1/5 |
Hydraulic jack 35 among the present invention is single power cylinders, is applicant's innovative design, and creates, normally operation.The technical characterstic of hydraulic jack 35 is single high-voltage oil cylinders, and the piston end of oil cylinder is a cavity, only passes in and out air, and piston rod is when moving upward to terminal, and gapped buffer structure is to prevent to take out oily pump Dun cylinder phenomenon.When moving downward (oil pumping), piston rod also establishes gap buffer, wire cable rupture when preventing to pump, the plug Dun cylinder of living in terminal.
The present invention can realize the requirement of long stroke, and its stroke is 6～10 meters.Native system also is applicable to deep-well (3000 meters), the working condition requirement of heavy duty (14 tons).Designed sealing configuration on piston and piston rod 31 had both guaranteed sealing, guaranteed the steering capability of long stroke again, and primary seal is to adopt composite seal, Fig. 3 is the structural drawing of oil hydraulic cylinder, and its symbol is a lower end cap 1, cylinder barrel 2, socket head screw 3, nut 4, Te Kaisilai circle 5,6, the special health Glais ring 7 of T type, O RunddichtringO 8, piston 9, piston sleeve 10, piston rod 11, guide sleeve 12, bolt 13, Te Kaisilai circle 14, packing ring 15, nut 16,, Te Kaisilai circle 17, K type Te Kangsite circle 18, it is special 19 that 5 type Te Kangai fall, O type circle 20, O type circle 21, notch-cut type back-up ring 22, joining plate 23, connecting tube 24, connecting flange 25, return tube 26, hanger screw 27.
Claims (2)
1. technical characteristics of the present invention is design (1) two horse head walking beam rack construction; (2) adopt the secondary regulation hydraulic transmission scheme; (3) hydraulic jack is the below that is placed on newly-increased horse head, in depth down.
2. according to claim 1 innovative design (1) long stroke hydraulic high-voltage oil cylinder; (2) the sealing overall structure of piston and piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131356 CN1991170A (en) | 2005-12-29 | 2005-12-29 | Double mule head secondary regulation hydraulic pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131356 CN1991170A (en) | 2005-12-29 | 2005-12-29 | Double mule head secondary regulation hydraulic pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1991170A true CN1991170A (en) | 2007-07-04 |
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ID=38213626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510131356 Pending CN1991170A (en) | 2005-12-29 | 2005-12-29 | Double mule head secondary regulation hydraulic pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1991170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352737A (en) * | 2011-09-28 | 2012-02-15 | 黄天坤 | Twin-well two-way hydraulic linkage oil pumping method and adopted oil pumping device thereof |
| CN110173242A (en) * | 2019-05-28 | 2019-08-27 | 刘锋 | Hydraulic power speed adjusting gear and pumping unit |
| CN113882839A (en) * | 2021-09-28 | 2022-01-04 | 刘希臣 | Adjustable pumping unit device with stabilizing mechanism and using method thereof |
| CN117948098A (en) * | 2024-03-26 | 2024-04-30 | 大庆市瑞斯德石油机械制造有限公司 | Horsehead balanced double-well pumping unit |
-
2005
- 2005-12-29 CN CN 200510131356 patent/CN1991170A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352737A (en) * | 2011-09-28 | 2012-02-15 | 黄天坤 | Twin-well two-way hydraulic linkage oil pumping method and adopted oil pumping device thereof |
| CN110173242A (en) * | 2019-05-28 | 2019-08-27 | 刘锋 | Hydraulic power speed adjusting gear and pumping unit |
| CN113882839A (en) * | 2021-09-28 | 2022-01-04 | 刘希臣 | Adjustable pumping unit device with stabilizing mechanism and using method thereof |
| CN117948098A (en) * | 2024-03-26 | 2024-04-30 | 大庆市瑞斯德石油机械制造有限公司 | Horsehead balanced double-well pumping unit |
| CN117948098B (en) * | 2024-03-26 | 2024-06-04 | 大庆市瑞斯德石油机械制造有限公司 | Horsehead balanced double-well pumping unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070704 |