CN105350945B - Three cylinder self-balancing hydraulic pumping unit systems - Google Patents
Three cylinder self-balancing hydraulic pumping unit systems Download PDFInfo
- Publication number
- CN105350945B CN105350945B CN201510885577.XA CN201510885577A CN105350945B CN 105350945 B CN105350945 B CN 105350945B CN 201510885577 A CN201510885577 A CN 201510885577A CN 105350945 B CN105350945 B CN 105350945B
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- Prior art keywords
- cylinder
- fixed
- master cylinder
- rod
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/14—Counterbalancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/02—Packing the free space between cylinders and pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Abstract
A kind of three cylinder self-balancing hydraulic pumping unit systems, including base, master cylinder, two compensating cylinders, sync block, polished rod slips and hydraulic system, there is the fixed platform above Christmas tree on the base, the master cylinder includes lower cylinder cap, cylinder body, internal lining pipe, piston rod, the first oil pumping polish rod, polished rod box cupling and the second oil pumping polish rod, and the hydraulic system is connected with fuel tank, master cylinder and two compensating cylinders.The present invention is simple in construction, easy to make, traditional beam pumping unit is compared, the present invention is in light weight, floor space is small, balance-type type directly balances, system effectiveness is improved largely, it is adapted to thick, thin oil and adopts and draws, applying working condition scope is wide, maximum reachable 60 type (polished rod load 600kN) oil pumpers (type of conventional pumping unit 16), stroke is up to more than 10 meters (below 5 meters of conventional pumping units), and it is easily installed, drive part is placed in ground and is easy to safeguard, operating efficiency is high.
Description
Technical field
The invention belongs to pumping technology field, more particularly to a kind of three cylinder self-balancing hydraulic pumping unit systems.
Background technology
Oil pumper is the capital equipment of oil field ground production, is a kind of machinery equipment for exploiting oil, between providing not
Disconnected up-downgoing power drives downhole pump operation, fluid is lifted from oil well.
Traditional beam pumping unit is the wide variety of traditional pumping unit in oil field, generally by ordinary ac asynchronous motor
Directly drag, its weight is big, floor space is wide, and system effectiveness is low, and safeguards inconvenience.
The content of the invention
Based on this, for above-mentioned technical problem, there is provided a kind of three cylinder self-balancing hydraulic pumping unit systems.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of three cylinder self-balancing hydraulic pumping unit systems, including base, master cylinder, two compensating cylinders, sync block, polished rod slips
And hydraulic system, there is on the base fixed platform above Christmas tree, the master cylinder include lower cylinder cap,
Cylinder body, internal lining pipe, piston rod, the first oil pumping polish rod, polished rod box cupling and the second oil pumping polish rod, the lower cylinder cap are fixed on described
At the center of fixed platform, the fixing hole of internal lining pipe insertion, the lower end socket of the cylinder body are supplied with above-below direction thereon
It is fixed on outside the lower cylinder cap, the internal lining pipe is arranged in the cylinder body, and its lower end is adapted to fixation with the fixing hole, described
Piston rod is located between the cylinder body and internal lining pipe, and the piston rod is passed from the top of the cylinder body and consolidated with the sync block
Fixed, the upper end of first oil pumping polish rod is fixed through the upper end of the piston rod and sync block with the polished rod slips, its
Lower end is connected by the polished rod box cupling with one end of second oil pumping polish rod, and the other end of second oil pumping polish rod stretches into institute
State in Christmas tree, described two compensating cylinders are fixed in the fixed platform along the master cylinder is vertically symmetrical, this two
The upper end of the piston rod of compensating cylinder vertically symmetrical both ends for being fixed on the sync block respectively, the hydraulic system and fuel tank, master
Cylinder and two compensating cylinder connections.
Also there is four supporting legs, rectangular supporting ring, frame and cat ladder on the base, four supporting legs it is upper
The Corner Strapped at end and fixed platform lower surface, the Corner Strapped of lower end and the rectangular supporting ring upper surface, the frame are consolidated
Due in the fixed platform, the cat ladder is fixed in the frame.
There is card convex in the fixing hole of the lower cylinder cap, with the neck being adapted to the card convex on the internal lining pipe, two
Person's clamping.
The upper end of the piston rod of the master cylinder is piercing in outside the top of the cylinder body, and one is arranged with outside the upper end of the piston rod
Seal, the lower surface of the seal is by being located on the upper surface at the top of the cylinder body, and the lower surface is described with being inserted in
The sealing ring in gap between piston rod and master cylinder, the upper end of the piston rod of the master cylinder have one to be used by inserting mode
The fixing pipe being screwed, the fixing pipe is fixed through the sync block and by nut and the sync block, in the fixing pipe
It is arranged with and is padded on two up and down between the nut and sync block and between the piston rod upper surface and sync block respectively
Pad, the upper end of first oil pumping polish rod are fixed after passing through the fixing pipe with the polished rod slips, first oil pumping polish rod
On be fixed with the pushing block being located at interval above the fixing pipe.
The bottom of the piston rod has thick section and narrow section, and the external diameter of the thick section is identical with the internal diameter of the cylinder body,
Described narrow section has step, L-shaped is formed between the step and cylinder body and lower cylinder cap positioned at the lower section of the thick section, its circumference
Gap.
The hydraulic system includes main pump, auxiliary pump, motor, the first solenoid directional control valve, the second solenoid directional control valve, the 3rd electricity
Magnetic reversal valve, master cylinder accumulator and compensating cylinder accumulator, the input of the main pump and auxiliary pump connect with the fuel tank
Connect, the output end of the main pump is connected through a check valve with first solenoid directional control valve and master cylinder accumulator, the auxiliary
The output end of pump is connected through another check valve with second solenoid directional control valve and the 3rd solenoid directional control valve, the motor and institute
Main pump connection is stated, first solenoid directional control valve is connected with the master cylinder, and the first solenoid directional control valve first quarter stream valve and institute
Fuel tank connection is stated, the 3rd solenoid directional control valve is connected with the fuel tank, compensating cylinder accumulator and two compensating cylinders.
The output end of the main pump and auxiliary pump is respectively connected with overflow valve.
The present invention is simple in construction, easy to make, and traditional beam pumping unit is compared, the present invention is in light weight, floor space is small,
Balance-type type directly balances, and system effectiveness is improved largely, and is adapted to thick, thin oil and adopts and draws, and applying working condition scope is wide, maximum reachable
60 type (polished rod load 600kN) oil pumpers (type of conventional pumping unit 16), stroke up to more than 10 meters (5 meters of conventional pumping unit with
Under), and be easily installed, drive part is placed in ground and is easy to safeguard, operating efficiency is high.
Brief description of the drawings
The present invention is described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the cross section structure diagram of the master cylinder of the present invention；
Fig. 3 is partial enlarged drawings of the Fig. 2 at A；
Fig. 4 is partial enlarged drawings of the Fig. 2 at B；
Fig. 5 is the schematic diagram of the hydraulic system of the present invention.
Embodiment
As Figure 1-5, a kind of three cylinder self-balancing hydraulic pumping unit systems, including 120, two base 110, master cylinder balances
Cylinder 130, sync block 140, polished rod slips 150 and hydraulic system 160.
There is the fixed platform 111 positioned at the top of Christmas tree 2 on base 110.
Specifically, also there is four supporting legs 112, rectangular supporting ring 113, frame 114 and cat ladder 115 on base 110,
The upper end of four supporting legs 112 and the Corner Strapped of the lower surface of fixed platform 111, lower end and the upper surface of rectangular supporting ring 113
Corner Strapped, frame 114 are fixed in fixed platform 111, and cat ladder 115 is fixed in frame 114.
Master cylinder 120 includes lower cylinder cap 121, cylinder body 122, internal lining pipe 123, piston rod 124, the first oil pumping polish rod 125, polished rod
The oil pumping polish rod 127 of box cupling 126 and second.
Lower cylinder cap 121 is fixed at the center of fixed platform 111, is inserted thereon with above-below direction for internal lining pipe 123
Fixing hole, the lower end of cylinder body 122 are fixed by socket in outside lower cylinder cap 121, and internal lining pipe 123 is arranged in cylinder body 122, and its lower end is with
The fixing hole adaptation of cylinder cap 121 is fixed, and piston rod 124 is located between cylinder body 122 and internal lining pipe 123, and the piston rod 124 is from cylinder body
122 top passes and fixed with sync block 140, and the upper end of the first oil pumping polish rod 125 is through the upper end of piston rod 124 and same
Step seat 140 is fixed with polished rod slips 150, and its lower end is connected by polished rod box cupling 126 with one end of the second oil pumping polish rod 127, should
The other end of second oil pumping polish rod 127 is stretched into Christmas tree 2.
Wherein, there is card convex 121a in the fixing hole of lower cylinder cap 121, have what is be adapted to card convex 121a on internal lining pipe 123
Neck, both clampings.
Specifically, the upper end of the piston rod 124 of master cylinder 120 has fixing pipe 128, the lower end of the fixing pipe 128 and piston
The upper end plugged and fixed of bar 124, its upper end are fixed with sync block 140, and the upper end of the first oil pumping polish rod 125 passes through fixing pipe 128
Fixed afterwards with polished rod slips 150.
The upper end of the piston rod 124 of master cylinder 120 is piercing in outside the top of cylinder body 122, is arranged outside the upper end of the piston rod 124
There is seal 129, the lower surface of the seal 129 is by the upper surface at the top of cylinder body 122, and the lower surface has and plugged
The sealing ring 129a in gap between piston rod 124 and master cylinder 120, the upper end of the piston rod 124 of master cylinder 120 have one to lead to
Inserting mode is crossed using the fixing pipe 128 that is screwed, fixing pipe 128 is through sync block 140 and synchronous with this by nut 141
Seat 140 is fixed, and is arranged with the fixing pipe 128 and is padded on respectively between nut 141 and sync block 140 and the upper end of piston rod 124
Two pads 142 up and down between face and sync block 140, the upper end of the first oil pumping polish rod 125 pass through after fixing pipe 128 with polished rod
Slips 150 is fixed, and the pushing block 170 for being located at interval at the top of fixing pipe 128 is fixed with first oil pumping polish rod 125.
Piston rod 124 promotes pushing block 170, makes the first oil pumping polish rod 125 up together when oil pressure effect is up, living
When stopper rod 124 is descending, due to that can accelerate piston rod 124 descending in the presence of pushing block 170.
The bottom of piston rod 124 has thick section 124a and narrow section of 124b, thick section 124a external diameter and the internal diameter of cylinder body 122
Identical, narrow section of 124b is located at thick section 124a lower section, and it circumferentially has a step, the step and cylinder body 122 and lower cylinder cap 121 it
Between form L-shaped gap.
Two compensating cylinders 130 are fixed in fixed platform 111 along master cylinder 120 is vertically symmetrical, the work of two compensating cylinders 130
The upper end of stopper rod vertically symmetrical both ends for being fixed on sync block 140 respectively.
Hydraulic system 160 is connected with fuel tank 3, master cylinder 120 and two compensating cylinders 130.
Specifically, hydraulic system 160 includes main pump 161, auxiliary pump 162, motor 163, the first solenoid directional control valve 164, the
Two solenoid directional control valves 165, the 3rd solenoid directional control valve 166, master cylinder accumulator 167 and compensating cylinder accumulator 168, main pump 161 with
And the input of auxiliary pump 162 is connected with fuel tank 3, the output end of main pump 161 is through a check valve and the first solenoid directional control valve 164
And master cylinder accumulator 167 connects, the output end of auxiliary pump 162 is through another check valve and the second solenoid directional control valve 165 and
Three solenoid directional control valves 166 are connected, and motor 163 is connected with main pump 161, and the first solenoid directional control valve 164 is connected with master cylinder 120, and should
First solenoid directional control valve 164 is connected through choke valve 169 with fuel tank 3, the 3rd solenoid directional control valve 166 and fuel tank 3, compensating cylinder accumulator
168 and two compensating cylinders 130 connect.
Specifically, the output end of main pump and auxiliary pump is respectively connected with overflow valve.
During work, starting motor 163, main pump 161 gives the repairing of master cylinder accumulator 167, meanwhile, the 3rd solenoid directional control valve 166
A sides obtain electric, auxiliary pump 162 balances the repairing of cylinder accumulator 168.
The pressure ftercompction (adjustable according to operating condition) of the master cylinder accumulator 167 and pressure certain value of compensating cylinder 130 is (according to fortune
Row climatic conditioning) after, the 3rd solenoid directional control valve 166 powers off, and the first solenoid directional control valve 164 must be electric, the second solenoid directional control valve 165
A sides obtain electric, and main pump 161, auxiliary pump 162 and master cylinder accumulator 167 promote the piston rod 124 of master cylinder 120 up together, together
When, compensating cylinder accumulator 168 balance cylinder 130 it is up when feed flow.
When master cylinder 120 reaches range (or when will reach range -- upper punching), the second solenoid directional control valve 165
B sides obtain electric, and oil pumper is descending, the discharge opeing of master cylinder 120 to fuel tank 3, the first solenoid directional control valve 164 electric, main pump 161, auxiliary pump 162
The repairing of master cylinder accumulator 167 is given together.
The speed of oil pumper up stroke can lean on the pivot angle of main pump 161 to adjust, and the speed of shape journey can lead under oil pumper
Choke valve 169 is crossed to adjust.
But those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
Invention, and be not used as limitation of the invention, as long as in the spirit of the present invention, to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (7)
1. a kind of three cylinder self-balancing hydraulic pumping unit systems, it is characterised in that including base, master cylinder, two compensating cylinders, synchronizations
Seat, polished rod slips and hydraulic system, there is the fixed platform above Christmas tree, the master cylinder on the base
Including lower cylinder cap, cylinder body, internal lining pipe, piston rod, the first oil pumping polish rod, polished rod box cupling and the second oil pumping polish rod, the lower cylinder
Lid is fixed at the center of the fixed platform, supplies the fixing hole of internal lining pipe insertion, the cylinder with above-below direction thereon
The lower end of body is fixed by socket in outside the lower cylinder cap, and the internal lining pipe is arranged in the cylinder body, its lower end and the fixing hole
Adaptation fix, the piston rod be located between the cylinder body and internal lining pipe, the piston rod passed from the top of the cylinder body and with
The sync block is fixed, and the upper end of first oil pumping polish rod passes through upper end and sync block and the polished rod of the piston rod
Slips is fixed, and its lower end is connected by the polished rod box cupling with one end of second oil pumping polish rod, second oil pumping polish rod
The other end is stretched into the Christmas tree, and described two compensating cylinders are fixed on the fixation and put down along the master cylinder is vertically symmetrical
On platform, the upper end of the piston rod of two compensating cylinders vertically symmetrical both ends for being fixed on the sync block respectively, the hydraulic pressure system
System is connected with fuel tank, master cylinder and two compensating cylinders.
2. a kind of three cylinders self-balancing hydraulic pumping unit system according to claim 1, it is characterised in that on the base also
With four supporting legs, rectangular supporting ring, frame and cat ladder, upper end and the fixed platform lower surface of four supporting legs
Corner Strapped, the Corner Strapped of lower end and the rectangular supporting ring upper surface, the frame are fixed in the fixed platform, institute
Cat ladder is stated to be fixed in the frame.
A kind of 3. three cylinders self-balancing hydraulic pumping unit system according to claim 1 or 2, it is characterised in that the lower cylinder
There is card convex in the fixing hole of lid, there are the neck being adapted to the card convex, both clampings on the internal lining pipe.
A kind of 4. three cylinders self-balancing hydraulic pumping unit system according to claim 3, it is characterised in that the work of the master cylinder
The upper end of stopper rod is piercing in outside the top of the cylinder body, and a seal is arranged with outside the upper end of the piston rod, under the seal
End face is by being located on the upper surface at the top of the cylinder body, and the lower surface is between being inserted between the piston rod and master cylinder
Sealing ring in gap, the upper end of the piston rod of the master cylinder have one to use the fixing pipe being screwed, institute by inserting mode
Fixing pipe is stated through the sync block and is fixed by nut and the sync block, is arranged with the fixing pipe and is padded on the spiral shell respectively
Between female and sync block and two pads up and down between the piston rod upper surface and sync block, first oil pumping polish rod
Upper end pass through the fixing pipe after fixed with the polished rod slips, be fixed with first oil pumping polish rod be located at interval at it is described solid
Pushing block above fixed tube.
5. a kind of three cylinders self-balancing hydraulic pumping unit system according to claim 4, it is characterised in that the piston rod
Bottom has thick section and narrow section, and the external diameter of the thick section is identical with the internal diameter of the cylinder body, and described narrow section is located at the thick section
Lower section, its circumferentially there is step, between the step and cylinder body and lower cylinder cap composition L-shaped gap.
A kind of 6. three cylinders self-balancing hydraulic pumping unit system according to claim 5, it is characterised in that the hydraulic system
Including main pump, auxiliary pump, motor, the first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, master cylinder accumulator
And compensating cylinder accumulator, the input of the main pump and auxiliary pump are connected with the fuel tank, the output end of the main pump
It is connected through a check valve with first solenoid directional control valve and master cylinder accumulator, the output end of the auxiliary pump is through another unidirectional
Valve is connected with second solenoid directional control valve and the 3rd solenoid directional control valve, and the motor is connected with the main pump, and described first
Solenoid directional control valve is connected with the master cylinder, and the first solenoid directional control valve first quarter stream valve is connected with the fuel tank, and the described 3rd
Solenoid directional control valve is connected with the fuel tank, compensating cylinder accumulator and two compensating cylinders.
A kind of 7. three cylinders self-balancing hydraulic pumping unit system according to claim 6, it is characterised in that the main pump and
The output end of auxiliary pump is respectively connected with overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885577.XA CN105350945B (en) | 2015-12-04 | 2015-12-04 | Three cylinder self-balancing hydraulic pumping unit systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885577.XA CN105350945B (en) | 2015-12-04 | 2015-12-04 | Three cylinder self-balancing hydraulic pumping unit systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105350945A CN105350945A (en) | 2016-02-24 |
| CN105350945B true CN105350945B (en) | 2017-11-21 |
Family
ID=55326991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885577.XA Active CN105350945B (en) | 2015-12-04 | 2015-12-04 | Three cylinder self-balancing hydraulic pumping unit systems |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296678A (en) * | 1979-02-12 | 1981-10-27 | Felder Donald W | Polish rod jack system |
| CN202483528U (en) * | 2012-03-29 | 2012-10-10 | 中国石油化工股份有限公司胜利油田分公司桩西采油厂 | Pumping unit load display device |
| CN202531119U (en) * | 2011-12-13 | 2012-11-14 | 浙江师范大学 | Hydraulic pumping unit |
| CN103061717A (en) * | 2013-01-05 | 2013-04-24 | 无锡市科优液压设备制造有限公司 | Four-cylinder type hydraulic pumping unit |
| CN202970633U (en) * | 2011-12-13 | 2013-06-05 | 浙江师范大学 | Full-automatic hydraulic pumping unit |
| CN203847073U (en) * | 2014-03-11 | 2014-09-24 | 中国石油大学(华东) | Gas balance type hydraulic oil pumping machine |
-
2015
- 2015-12-04 CN CN201510885577.XA patent/CN105350945B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296678A (en) * | 1979-02-12 | 1981-10-27 | Felder Donald W | Polish rod jack system |
| CN202531119U (en) * | 2011-12-13 | 2012-11-14 | 浙江师范大学 | Hydraulic pumping unit |
| CN202970633U (en) * | 2011-12-13 | 2013-06-05 | 浙江师范大学 | Full-automatic hydraulic pumping unit |
| CN202483528U (en) * | 2012-03-29 | 2012-10-10 | 中国石油化工股份有限公司胜利油田分公司桩西采油厂 | Pumping unit load display device |
| CN103061717A (en) * | 2013-01-05 | 2013-04-24 | 无锡市科优液压设备制造有限公司 | Four-cylinder type hydraulic pumping unit |
| CN203847073U (en) * | 2014-03-11 | 2014-09-24 | 中国石油大学(华东) | Gas balance type hydraulic oil pumping machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105350945A (en) | 2016-02-24 |
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