CN102041981A - Sheathed oil well balancer - Google Patents
Sheathed oil well balancer Download PDFInfo
- Publication number
- CN102041981A CN102041981A CN2011100240868A CN201110024086A CN102041981A CN 102041981 A CN102041981 A CN 102041981A CN 2011100240868 A CN2011100240868 A CN 2011100240868A CN 201110024086 A CN201110024086 A CN 201110024086A CN 102041981 A CN102041981 A CN 102041981A
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- accumulator
- oil well
- cylinder
- oil
- sleeve type
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Abstract
The invention provides a sheathed oil well balancer which is mainly composed of an energy accumulator and a hydraulic cylinder, wherein, a connecting flange of the energy accumulator is connected with a connecting flange of an oil cylinder through screws so as to realize axial sheathing and integral installation of the energy accumulator and the hydraulic cylinder and finally form the complete sheathed oil well balancer. The sheathed oil well balancer has the advantages that the sheathed oil well balancer is equipped with an upper piston and a lower piston, and an oil storage cavity is formed between the upper piston and the lower piston, which can realize power transmission by means of the oil liquid stored between the upper piston and the lower piston and ensure lubrication of the oil cylinder, and simultaneously, the cost is effectively lowered owing to no need of hydraulic oil; by utilizing a lower piston rod and a dustproof unit composed of a small end cover of the oil cylinder, a guide sleeve, a sealing element and a dustproof ring, the pollution on the cylinder body can be effectively handled and the maintenance is reduced; and the energy accumulator is sheathed with the hydraulic cylinder for integration. The whole equipment is simple in structure, convenient for installation and easier to maintain.
Description
Technical field
The present invention relates to oil production equipment and technical field, be specifically related to a kind of sleeve type oil well equalizer.
Background technology
Existing oil pumper is owing to the operating mode of recovering the oil changes, cause oil pumper swing arm load distribution imbalance, fluctuation is big, when the swing arm of oil pumper is in the decline process, because the action of gravity of swing arm, produce gravitional force, reduced the power output of main motor greatly, even produce the negative work phenomenon; When the swing arm of oil pumper was in uphill process, the power output of main motor not only will be used to overcome the operating load that oil pumping produces, and needed to overcome the gravity load of generations such as swing arm rising simultaneously, and the power output of main motor will increase greatly.Because in oil pumper swing arm rising and the decline process, the output-power fluctuation of main motor is big, has increased the loss of oil pumper.The hydro-cushion device mainly is made up of accumulator and hydraulic cylinder, and upper and lower two mounting points are installed in respectively in the swing arm and body of oil pumper.The hydro-cushion device utilizes the accumulator preset pressure, acts in the swing arm of oil pumper balanced oil extractor swing arm weight distribution by hydraulic cylinder.When the oil pumper swing arm was descending, oil pumper swing arm action of gravity was in hydraulic jack, and by the nitrogen in the further compress energy storage device of hydraulic oil, accumulator absorbs and storage power, has improved the power output of main motor simultaneously; When the oil pumper swing arm was up, the compressed nitrogen in the accumulator acted in the oil pumper swing arm by hydraulic jack, and accumulator releases energy to oil pumper, had reduced the power output of main motor simultaneously.So, by the hydro-cushion device can balanced oil pumper master motor power output, improve the operating efficiency of oil pumper, reduce energy consumption.Existing hydro-cushion device generally is in the same place accumulator and hydraulic cylinder by pipeline, and complex structure is installed inconvenient, the tie point of pipeline is more, because in the oil pumper course of work, the hydro-cushion device is swing constantly, has increased the probability of hydro-cushion device leakage of oil greatly.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, proposed a kind of one and installed, no intermediate connection tube road, simple in structure, the oil well equalizer of the easy for installation and sleeve type that reliability is high.
Sleeve type oil well equalizer, mainly form by accumulator and hydraulic cylinder, wherein accumulator is made up of Connection Block 1, upper end cover 2, accumulator cylinder barrel 3, accumulator adpting flange 10 and sealing ring 11 and accumulator charge valve 19, and described Connection Block 1, upper end cover 2, accumulator cylinder barrel 3, accumulator adpting flange 10 are welded to each other and are integral; Hydraulic cylinder is made up of hydraulic cylinder cylinder barrel 8, upper piston 6, lower piston 7, piston rod 9, oil cylinder adpting flange 13, oil cylinder small end lid 14, connector 18, described hydraulic cylinder cylinder barrel 8 and oil cylinder adpting flange 13 are integrally welded, lower piston 7 and piston rod 9 are integrally welded, oil cylinder small end lid 14 is installed on the oil cylinder adpting flange 13 by screw 16, and connector 18 and piston rod 9 are by being threaded togather.
Described accumulator adpting flange 10 and oil cylinder adpting flange 13 link together by screw 12, realize accumulator and the axial suit of hydraulic cylinder, and one is installed, and forms complete sleeve type oil well equalizer.
Form a cavity " C " between the upper piston 6 of described sleeve type oil well equalizer and the lower piston 7, be full of fluid in advance in " C " chamber.
Described sleeve type oil well equalizer is connected with the oil pumper swing arm by the axis hole on the Connection Block 1 " A ", be connected with the frame of oil pumper by " B " hole on the connector 18, according to the size of oil pumper required balance power, charge into the nitrogen of certain pressure by charge valve 19 " D " chamber in accumulator.
Described upper piston 6 and lower piston 7 are provided with fairlead 4, seal 5.
Described oil cylinder small end lid 14 is provided with fairlead 15 and dust ring 17.
The dustproof of sleeve type oil well equalizer is convenient in piston rod 9 underlyings of described sleeve type oil well equalizer.
The advantage of sleeve type oil well equalizer of the present invention is: sleeve type oil well equalizer is provided with upper and lower two pistons, form shoe cream room between the upper and lower piston, this setting not only can utilize the fluid transferring power that stores between the upper and lower piston, can also guarantee the lubricated of oil cylinder, simultaneously because oil cylinder has the thick stick chamber need not use hydraulic oil, can effectively reduce oil liquid leakage, reduce cost; The underlying of piston rod and the dustproof unit of being made up of the little end cap of oil cylinder, fairlead, seal and dust ring can successfully manage the pollution of cylinder body and reduce maintenance; Accumulator and hydraulic cylinder load connect, and form one, and entire equipment simple in structure, easy for installation makes maintenance simpler.
Description of drawings
Fig. 1 sleeve type oil well equalizer overall schematic.
Embodiment
Sleeve type oil well equalizer as shown in Figure 1, mainly form by accumulator and hydraulic cylinder, wherein accumulator is made up of Connection Block 1, upper end cover 2, accumulator cylinder barrel 3, accumulator adpting flange 10 and sealing ring 11 and accumulator charge valve 19, and described Connection Block 1, upper end cover 2, accumulator cylinder barrel 3, accumulator adpting flange 10 are welded to each other and are integral; Hydraulic cylinder is made up of hydraulic cylinder cylinder barrel 8, upper piston 6, lower piston 7, piston rod 9, oil cylinder adpting flange 13, oil cylinder small end lid 14, connector 18, described hydraulic cylinder cylinder barrel 8 and oil cylinder adpting flange 13 are integrally welded, lower piston 7 and piston rod 9 are integrally welded, oil cylinder small end lid 14 is installed on the oil cylinder adpting flange 13 by screw 16, and connector 18 and piston rod 9 are by being threaded togather.
Described accumulator adpting flange 10 and oil cylinder adpting flange 13 link together by screw 12, realize accumulator and the axial suit of hydraulic cylinder, and one is installed, and forms complete sleeve type oil well equalizer.
Form a cavity " C " between the upper piston 6 of described sleeve type oil well equalizer and the lower piston 7, be full of fluid in advance in " C " chamber.
Described sleeve type oil well equalizer is connected with the oil pumper swing arm by the axis hole on the Connection Block 1 " A ", be connected with the frame of oil pumper by " B " hole on the connector 18, according to the size of oil pumper required balance power, charge into the nitrogen of certain pressure by charge valve 19 " D " chamber in accumulator.
Described upper piston 6 and lower piston 7 are provided with fairlead 4, seal 5.
Described oil cylinder small end lid 14 is provided with fairlead 15 and dust ring 17.
The dustproof of sleeve type oil well equalizer is convenient in piston rod 9 underlyings of described sleeve type oil well equalizer.
The course of work of sleeve type oil well equalizer of the present invention is: reset condition, the swing arm of oil pumper is in the extreme higher position, " A " of sleeve type oil well equalizer, " B " two mounting points are apart from maximum, the upper piston 6 and the lower piston 7 of hydraulic cylinder are in extreme lower position, upper piston 6 upper spaces communicate by interior " D " chamber of passage " E " and accumulator, because action of gravity, swing arm is descending, the last accumulator of drive sleeve type oil well equalizer and hydraulic cylinder cylinder barrel etc. move downward together, nitrogen in accumulator " D " chamber is compressed, simultaneously, active force passes to " C " chamber inner fluid by oil cylinder upper piston 6, the pressure that " C " chamber inner fluid forms passes to piston rod 9 by lower piston 7 again, act on by connector 18 on the frame of oil pumper, because the nitrogen in accumulator " D " chamber further compresses, nitrogen pressure rises, and, move to minimum point until the oil pumper swing arm with the form absorption of pressure energy and the swing arm gravitional force of storage oil pumper; When the oil pumper swing arm moves upward, when beginning the oil pumping action, compressed nitrogen in accumulator " D " chamber acts on the upper end cover 2 of accumulator under pressure, by upper connecting base 1 outside outputting power, release energy, Connection Block 1 drives accumulator and hydraulic cylinder cylinder barrel etc. and moves upward together, moves to peak until the oil pumper swing arm, finishes actuation cycle one time.
The described sheathed oil well balancer of the application of the invention, its advantage is: can rationally regulate the load distribution of oil pumper operation cycle, take full advantage of active power, realize energy-saving and emission-reduction; Sheathed oil well balancer is provided with upper and lower two pistons, form shoe cream room between the upper and lower piston, this setting not only can utilize the fluid transferring power that stores between the upper and lower piston, can also guarantee the lubricated of oil cylinder, owing to need not use hydraulic oil, energy is Cost reduction effectively simultaneously; The underlying of piston rod and the dustproof unit that is made up of oil cylinder small end cover, fairlead, seal and dust ring can successfully manage the pollution of cylinder body and reduce maintenance; Accumulator and hydraulic cylinder load connect, and form one, and whole equipment simple in structure, easy for installation makes maintenance simpler.
Claims (7)
1. sleeve type oil well equalizer, it is characterized in that, form by accumulator and hydraulic cylinder, wherein accumulator is made up of Connection Block (1), upper end cover (2), accumulator cylinder barrel (3), accumulator adpting flange (10) and sealing ring (11) and accumulator charge valve (19), and described Connection Block (1), upper end cover (2), accumulator cylinder barrel (3), accumulator adpting flange (10) are welded to each other and are integral; Hydraulic cylinder is made up of hydraulic cylinder cylinder barrel (8), upper piston (6), lower piston (7), piston rod (9), oil cylinder adpting flange (13), the little end cap of oil cylinder (14), connector (18), described hydraulic cylinder cylinder barrel (8) and oil cylinder adpting flange (13) are integrally welded, lower piston (7) and piston rod (9) are integrally welded, the little end cap of oil cylinder (14) is installed on the oil cylinder adpting flange (13) by screw (16), and connector (18) and piston rod (9) are by being threaded togather.
2. sleeve type oil well equalizer as claimed in claim 1, it is characterized in that accumulator adpting flange (10) and oil cylinder adpting flange (13) link together by screw (12), realize accumulator and the axial suit of hydraulic cylinder, one is installed, and forms complete sleeve type oil well equalizer.
3. sleeve type oil well equalizer as claimed in claim 1 is characterized in that, forms a cavity " C " between the upper piston (6) of sleeve type oil well equalizer and the lower piston (7), is full of fluid in advance in " C " chamber.
4. sleeve type oil well equalizer as claimed in claim 1, it is characterized in that, sleeve type oil well equalizer is connected with the oil pumper swing arm by the axis hole on the Connection Block 1 " A ", be connected with the frame of oil pumper by " B " hole on the connector (18), according to the size of oil pumper required balance power, charge into the nitrogen of certain pressure by charge valve (19) " D " chamber in accumulator.
5. sleeve type oil well equalizer as claimed in claim 1 is characterized in that, upper piston (6) and lower piston (7) are provided with fairlead (4), seal (5).
6. sleeve type oil well equalizer as claimed in claim 1 is characterized in that, the little end cap of oil cylinder (14) is provided with fairlead (15) and dust ring (17).
7. sleeve type oil well equalizer as claimed in claim 1 is characterized in that, the dustproof of sleeve type oil well equalizer is convenient in piston rod (9) underlying of sleeve type oil well equalizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100240868A CN102041981A (en) | 2011-01-21 | 2011-01-21 | Sheathed oil well balancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100240868A CN102041981A (en) | 2011-01-21 | 2011-01-21 | Sheathed oil well balancer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102041981A true CN102041981A (en) | 2011-05-04 |
Family
ID=43908486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100240868A Pending CN102041981A (en) | 2011-01-21 | 2011-01-21 | Sheathed oil well balancer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102041981A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9964124B2 (en) | 2015-09-02 | 2018-05-08 | Deere & Company | Piston accumulator with integrated cylinder rod |
-
2011
- 2011-01-21 CN CN2011100240868A patent/CN102041981A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9964124B2 (en) | 2015-09-02 | 2018-05-08 | Deere & Company | Piston accumulator with integrated cylinder rod |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |