CN104712537A - Balanced load reducing and range extending device for oil well pump - Google Patents
Balanced load reducing and range extending device for oil well pump Download PDFInfo
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- CN104712537A CN104712537A CN201310722954.9A CN201310722954A CN104712537A CN 104712537 A CN104712537 A CN 104712537A CN 201310722954 A CN201310722954 A CN 201310722954A CN 104712537 A CN104712537 A CN 104712537A
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- pulley
- oil
- sucker rod
- well pump
- oil well
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Abstract
The invention relates to the technical field of oil pumping equipment, in particular to a balanced load reducing and range extending device for an oil well pump. The balanced load reducing and range extending device for the oil well pump comprises an oil pipe, two fixed pulleys, an upper oil pumping rod, a lower oil pumping rod, a steel wire rope, an oil pipe rope fixing point located on the inner wall of the oil pipe and used for fixing one end of the steel wire rope, two opposite fixed pulley fixing balance points located on the inner wall of the oil pipe, an oil well pump cylinder fixed into the oil pipe, a horse head hanging point connected with the upper end of the upper oil pumping rod, a pulley connection device connected with the lower end of the upper oil pumping rod and an oil well pump piston is fixed to the lower end of the lower oil pumping rod, the two fixed pulleys share the same pulley shaft, and the two ends of the pulley shaft are fixed to the two fixed pulley fixing balance points respectively; the other end of the steel wire rope winds around the pulley connection device and the two fixed pulleys in sequence to be connected to the upper end of the lower oil pumping rod, and the oil well pump cylinder is located under the pulley connection device and is matched with the oil well pump piston. The balanced load reducing and range extending device for the oil well pump has the advantages that the technology is reasonable, the load reducing is great, the electric energy is largely saved, and the application range is wide owing to the load reducing.
Description
Technical field
The present invention relates to pumping unit technical field, refer to a kind of oil well pump balance off-load distance increasing unit especially.
Background technique
At present, existing load reducer is all the difference of the liquid level of liquid level (pressure) when sucker rod up-downgoing utilizing oil pipe and tubing-casing annulus, produces upper elasticity instantaneously and alleviates pumping unit horsehead polished rod load, play off-load, energy-conservation effect.It is subject to the restriction of the liquid level (pressure) of oil pipe and tubing-casing annulus, and off-load, energy-conserving action are very limited, DeGrain.Further, the effect making oil well pump increase Cheng Jieneng can not be produced.When obtaining too dark under having oil well pump again, the upper and lower stroke of sucker rod is easily asynchronous.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of oil well pump balance off-load distance increasing unit, selects equinoctial point, realizes pumping unit off-load; By changing the movable pulley of varying number, thus reach point upper and lower two-part on the different stroke load-carrying oil well pump balance off-load distance increasing unit equinoctial point different with wire rope, and direction power of borrowing mutually on the contrary forms an entity, as the principle of lever balance (balance), there is not upper and lower nonsynchronous problem and off-load.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of oil well pump to balance off-load distance increasing unit, comprise oil pipe, two static pulley, upper sucker rod, lower sucker rod, wire rope, be positioned at tube inner wall admittedly to restrict a little for the oil pipe of fixing wire rope one end, be positioned at the static pulley stable equilibrium point that two of tube inner wall are relative, be fixed on the oil pumping barrel in oil pipe, the horse head suspension point be connected with upper sucker rod upper end, the pulley connector be connected with upper sucker rod lower end and the oil pump piston being fixed on lower sucker rod lower end, described two static pulley are same wheel shaft, the two ends of this wheel shaft are individually fixed in two static pulley stable equilibrium points, the other end of described wire rope walks around the upper end that pulley connector and two static pulley are connected to lower sucker rod successively, and described oil pumping barrel is positioned at below pulley connector and matches with oil pump piston.Wherein two static pulley and pulley connector match and utilize lever rule, reach the effect that off-load increases journey.
As preferably, the upper end of described lower sucker rod is provided with sucker rod rope fixture, and the other end of described wire rope is fixing with sucker rod rope fixture.Because lower sucker rod lower end is connected with oil pump piston, so the power that is subject to is comparatively large during work, can the upper end of more firmly connecting steel wire ropes and lower sucker rod by sucker rod rope fixture.
As preferably, described pulley connector is provided with two movable pulleys, the other end of described wire rope walks around the upper end that two movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively, by two movable pulleys and two static pulley, the load of horse head suspension point is distributed to tube inner wall.
As preferably, described pulley connector is provided with three movable pulleys, the other end of described wire rope walks around the upper end that three movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively, by three movable pulleys and two static pulley, the load of horse head suspension point is distributed to tube inner wall.
As preferably, described pulley connector is provided with four movable pulleys, the other end of described wire rope walks around the upper end that four movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively, by four movable pulleys and two static pulley, the load of horse head suspension point is distributed to tube inner wall.
As preferably, described pulley connector is provided with five movable pulleys, the other end of described wire rope walks around the upper end that five movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively, by five movable pulleys and two static pulley, the load of horse head suspension point is distributed to tube inner wall.
As preferably, the lower end of described upper sucker rod is connected with the upper end center place of described pulley connector, makes pulley connector stress balance.
The beneficial effect of technique scheme of the present invention is as follows: structure is simple, technology is reasonable, by load transfer on oil pipe, pumping unit horsehead polished rod load is made to be zero or close to zero, electric energy only for overcoming the inertial load work done on sucker rod, oil well pump, thus plays off-load, a large amount of saving power greatly, and the effect of efficiency adopted by the machine of increasing substantially, off-load, energy-saving effect are more obvious, are applicable to scope wide.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of oil well pump of the present invention balance off-load distance increasing unit embodiment.
Embodiment
For making the technical problem to be solved in the present invention, technological scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to existing deficiency provides a kind of oil well pump to balance off-load distance increasing unit, as shown in Figure 1, comprise oil pipe 13, two static pulley 3, upper sucker rod 4, lower sucker rod 7, wire rope 9, be positioned at tube inner wall admittedly to restrict a little for the oil pipe 8 of fixing wire rope one end, be positioned at the relative static pulley of two of tube inner wall solid 2 and determine equinoctial point, be fixed on the oil pumping barrel 12 in oil pipe, the horse head suspension point 1 be connected with upper sucker rod upper end, the pulley connector 5 be connected with upper sucker rod lower end and the oil pump piston 11 being fixed on lower sucker rod lower end, described two static pulley are same wheel shaft, the two ends of this wheel shaft are individually fixed in two static pulley stable equilibrium points, the other end of described wire rope walks around the upper end that pulley connector and two static pulley are connected to lower sucker rod successively, and described oil pumping barrel is positioned at below pulley connector and matches with oil pump piston.
The upper end of described lower sucker rod is provided with sucker rod rope fixture 10, and the other end of described wire rope is fixed and sucker rod rope fixture.
Described pulley connector is provided with two movable pulleys 6, and the other end of described wire rope walks around the upper end that two movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively.
Described pulley connector is provided with three movable pulleys, and the other end of described wire rope walks around the upper end that three movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively.
Described pulley connector is provided with four movable pulleys, and the other end of described wire rope walks around the upper end that four movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively.
Described pulley connector is provided with five movable pulleys, and the other end of described wire rope walks around the upper end that five movable pulleys on pulley connector and two static pulley are connected to lower sucker rod successively.
The lower end of described upper sucker rod is connected with the upper end center place of described pulley connector.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. an oil well pump balance off-load distance increasing unit, it is characterized in that, comprise oil pipe (13), two static pulley (3), upper sucker rod (4), lower sucker rod (7), wire rope (9), be positioned at oil pipe that oil pipe (13) inwall is used for fixing wire rope (9) one end admittedly to restrict point (8), be positioned at the static pulley stable equilibrium point (2) that two of oil pipe (13) inwall are relative, be fixed on the oil pumping barrel (12) in oil pipe (3), the horse head suspension point (1) be connected with upper sucker rod upper end, the pulley connector (5) be connected with upper sucker rod (4) lower end and the oil pump piston (11) being fixed on lower sucker rod (7) lower end, described two static pulley (3) are same wheel shaft, the two ends of this wheel shaft are individually fixed in two static pulley stable equilibrium points (2), the other end of described wire rope (9) walks around the upper end that pulley connector (5) and two static pulley (3) are connected to lower sucker rod (7) successively, and described oil pumping barrel (12) is positioned at pulley connector (5) below and matches with oil pump piston (11).
2. oil well pump balance off-load distance increasing unit according to claim 1, it is characterized in that, the upper end of described lower sucker rod (7) is provided with sucker rod rope fixture (10), and the other end of described wire rope (9) is fixed and sucker rod rope fixture (10).
3. oil well pump balance off-load distance increasing unit according to claim 2, it is characterized in that, described pulley connector (5) is provided with two movable pulleys (6), and the other end of described wire rope (9) walks around the upper end that two movable pulleys (6) on pulley connector (5) and two static pulley (3) are connected to lower sucker rod (7) successively.
4. oil well pump balance off-load distance increasing unit according to claim 2, it is characterized in that, described pulley connector (5) is provided with three movable pulleys (6), and the other end of described wire rope (9) walks around the upper end that three movable pulleys (6) on pulley connector (5) and two static pulley (3) are connected to lower sucker rod (7) successively.
5. oil well pump balance off-load distance increasing unit according to claim 2, it is characterized in that, described pulley connector (5) is provided with four movable pulleys (6), and the other end of described wire rope (9) walks around the upper end that four movable pulleys (6) on pulley connector (5) and two static pulley (3) are connected to lower sucker rod (7) successively.
6. oil well pump balance off-load distance increasing unit according to claim 2, it is characterized in that, described pulley connector (5) is provided with five movable pulleys (6), and the other end of described wire rope (9) walks around the upper end that five movable pulleys (6) on pulley connector (5) and two static pulley (3) are connected to lower sucker rod (7) successively.
7. the oil well pump balance off-load distance increasing unit according to claim 1 to 6 any one, it is characterized in that, the lower end of described upper sucker rod (4) is connected with the upper end center place of described pulley connector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722954.9A CN104712537A (en) | 2013-12-17 | 2013-12-17 | Balanced load reducing and range extending device for oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722954.9A CN104712537A (en) | 2013-12-17 | 2013-12-17 | Balanced load reducing and range extending device for oil well pump |
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| Publication Number | Publication Date |
|---|---|
| CN104712537A true CN104712537A (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310722954.9A Pending CN104712537A (en) | 2013-12-17 | 2013-12-17 | Balanced load reducing and range extending device for oil well pump |
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| CN (1) | CN104712537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956455A (en) * | 2016-10-18 | 2018-04-24 | 中国石油天然气股份有限公司 | A kind of pumping unit load-shedding equipment |
-
2013
- 2013-12-17 CN CN201310722954.9A patent/CN104712537A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956455A (en) * | 2016-10-18 | 2018-04-24 | 中国石油天然气股份有限公司 | A kind of pumping unit load-shedding equipment |
| CN107956455B (en) * | 2016-10-18 | 2020-03-10 | 中国石油天然气股份有限公司 | Load reducing device of oil pumping unit |
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Application publication date: 20150617 |