CN205135573U - A beam -pumping unit for coal bed gas exploitation - Google Patents
A beam -pumping unit for coal bed gas exploitation Download PDFInfo
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- CN205135573U CN205135573U CN201520876899.3U CN201520876899U CN205135573U CN 205135573 U CN205135573 U CN 205135573U CN 201520876899 U CN201520876899 U CN 201520876899U CN 205135573 U CN205135573 U CN 205135573U
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- oil pumper
- cylinder
- flexible attachment
- motor
- attachment components
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Abstract
The utility model discloses a beam -pumping unit for coal bed gas exploitation belongs to coal bed gas mining manufacture technical field. This beam -pumping unit includes: base, support, first head sheave, second head sheave, first flexible adapting unit, the flexible adapting unit of second, polished rod eye, counterweight portion spare, motor, reduction gear, cylinder, displacement sensor and electrical system, support, motor, reduction gear and cylinder are fixed on the base, and first head sheave and second head sheave are fixed at the support top, the input shaft of motor and reduction gear, the output shaft of cylinder and reduction gear, first flexible adapting unit's one end winding is on the cylinder, and the other end is connected with the polished rod eye after walking around first head sheave, the flexible adapting unit's of second one end winding is on the cylinder, and the other end is connected with counterweight portion spare after walking around the second head sheave, the sensor is used for detecting the angle displacement of cylinder, electrical system is used for the rotational speed and the rotation direction of control motor. Continuously adjustable can be carried out to the stroke and the frequency of stroke of this beam -pumping unit.
Description
Technical field
The utility model relates to coal-bed gas exploitation equipment technical field, particularly a kind of oil pumper for coal-bed gas exploitation.
Background technology
Coal bed gas is commonly called as gas, and main component is methane, is formed in coalification course and compose a kind of Unconventional forage be stored in coal seam.Major part coal bed gas is adsorbed on coal petrography internal pore surface, and a small amount of coal bed gas is present in the hugger of coal seam with free state or is dissolved in coal seam water.Owing to there is a large amount of coal seam waters in coal seam, the reservoir pressure in coal seam is made to be greater than the desorption pressures of coal bed gas, therefore, need first coal seam water to be discharged in coal-bed gas exploitation process, make the reservoir pressure in coal seam be reduced to below the desorption pressures of coal bed gas, thus make the coal bed gas desorption that is adsorbed on coal petrography internal pore surface.Drainage plant for discharging coal seam water mainly comprises oil pumper, sucker rod and oil well pump.Oil pumper is positioned at ground, and oil well pump is positioned at down-hole, and oil pumper is connected by sucker rod with oil well pump.Oil well pump is done the reciprocating motion of vertical direction thus coal seam water is expelled to ground under the driving of oil pumper.
Oil pumper conventional in current coal seam water drainage plant is beam pumping unit.As shown in Figure 1, beam pumping unit comprises: base, motor 1a, reducing gear 2a, crank balance device 3a, walking beam 4a, horse head 5a, polished rod eye 6a and support 7a.Wherein, crank balance device 3a comprises crankshaft balance weight 31a, connecting rod 32a and crank 33a.Motor 1a to be arranged on base and to be connected with reducing gear 2a power shaft by belt pulley; One end of crank 33a is connected with the output shaft of reducing gear 2a, and the other end is connected with crankshaft balance weight 31a; Walking beam 4a is movably connected on support 7a, and horse head 5a is fixed on one end of walking beam 4a, and the two ends of connecting rod 32a are flexibly connected with crank 33a and walking beam 4a respectively; Sucker rod is connected with horse head 5a by polished rod eye 6a.In above-mentioned beam pumping unit, crank 33a, connecting rod 32a and walking beam 4a form quadric chain, by this quadric chain, the rotary motion of motor 1a is converted to the reciprocating motion of the vertical direction of horse head 5a, thus coal seam water is expelled to ground by the reciprocating motion driving oil well pump to make vertical direction.
Realizing in process of the present utility model, designer finds that prior art at least exists following problem: in coal-bed gas exploitation process, and the coal seam water water yield can change.Need when the coal seam water water yield changes to regulate the stroke of oil pumper (horse head drives the spacing of the highs and lows of sucker rod motion) and jig frequency (horse head reciprocating number of times per minute) in time, to ensure normally carrying out of coal-bed gas exploitation.And the stroke of existing beam pumping unit is determined by the length of crank 33a, the length that its stroke must change crank 33a be changed.Therefore the stroke of beam pumping unit can not regulate continuously according to coal seam water water yield change in coal-bed gas exploitation process.Meanwhile, the jig frequency of beam pumping unit regulates the rotating speed of motor 1a to carry out regulating by frequency converter, can only regulate between some special value, can not regulate continuously according to coal seam water water yield change in coal-bed gas exploitation process.
Utility model content
In order to solve above-mentioned technical problem, the utility model provides a kind of oil pumper for coal-bed gas exploitation that can regulate stroke, jig frequency continuously.
Specifically, following technical scheme is comprised:
A kind of oil pumper for coal-bed gas exploitation, this oil pumper is arranged on the concrete pedestal of coal bed gas well well head, and this oil pumper comprises: base, support, the first head sheave, the second head sheave, the first flexible attachment components, the second flexible attachment components, polished rod eye, weight member, motor, reducer, cylinder, displacement transducer and electric-control system; Described support is fixed on described base, and described first head sheave and described second head sheave are fixed on the top of described support; Described motor, described reducer and described cylinder are all fixed on described base, and described motor is connected with the power shaft of described reducer, and described cylinder is connected with the output shaft of described reducer; The one ends wound of described first flexible attachment components on which cylinder, walk around described first head sheave and be connected with described polished rod eye by the other end; The one ends wound of described second flexible attachment components on which cylinder, walk around described second head sheave and be connected with described weight member by the other end; Institute's displacement sensors is connected with described cylinder, for detecting the angular displacement of described cylinder; Described electric-control system is for controlling the rotating speed of described motor and the rotation direction of motor described in the angular displacement Data Control detecting the described cylinder obtained according to institute's displacement sensors.
Further, described motor is connected by the power shaft of belt pulley with described reducer; Described cylinder is connected by the output shaft of shaft coupling with described reducer.
Further, described oil pumper also comprises: brake; Described brake to be fixed on described base and to be connected with described shaft coupling.
Further, described oil pumper also comprises lead; Described lead is positioned at the side of described support and vertically arranges; Described weight member can move along described lead.
Further, described weight member comprises casing and balancing weight; Described balancing weight is positioned at described box house.
Further, described first flexible attachment components is belt or wire rope, and described second flexible attachment components is belt or wire rope.
Further, the quantity of described first flexible attachment components is 2, and the quantity of described second flexible attachment components is 1.
Further, described cradle top is also provided with the first platform; Described side face is also provided with the second platform.
Further, the surrounding of described base is also provided with fence.
Further, described support is truss-like support.
The beneficial effect of the technical scheme that the utility model embodiment provides:
In the oil pumper that the utility model embodiment provides, motor drives drum rotating by reducer, in roller rotating process, the first flexible attachment components be wound around or discharge, by the stroke regulating the number of turns of the first flexible attachment components winding or release to regulate oil pumper.To be wound around due to the first flexible attachment components or the number of turns of release within the specific limits can consecutive variations, therefore can to regulate continuously the stroke of this oil pumper.Meanwhile, electric-control system can also regulate continuously motor speed thus realize the continuous adjustment to beam-pumping unit jig frequency.To sum up, the stroke of the oil pumper that the utility model embodiment provides and jig frequency can regulate continuously according to coal seam water water yield change in coal-bed gas exploitation process, can meet coal-bed gas exploitation demand, realize the high yield of coal bed gas, stable yields.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing beam pumping unit;
The structural representation of the oil pumper for coal-bed gas exploitation that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the sectional view of Fig. 2 along A-A direction.
In figure, Reference numeral represents respectively:
1, concrete pedestal; 2, base; 3, support; 4, polished rod eye; 5, the first flexible attachment components;
6, the first head sheave; 7, the second head sheave; 8, the second flexible attachment components; 9, lead;
10, weight member; 11, fence; 12, displacement transducer; 13, the first platform; 14, motor;
15, reducer; 16, shaft coupling, 17, cylinder; 18, brake; 19, electric-control system;
20, the second platform; 21, belt pulley.
The motor of 1a, beam pumping unit; The reducing gear of 2a, beam pumping unit;
The crank balance device of 3a, beam pumping unit; 31a, crankshaft balance weight;
32a, connecting rod; 33a, crank;
The walking beam of 4a, beam pumping unit; The horse head of 5a, beam pumping unit;
The polished rod eye of 6a, beam pumping unit; The support of 7a, beam pumping unit.
Detailed description of the invention
For making the technical solution of the utility model and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
The utility model embodiment provides a kind of oil pumper for coal-bed gas exploitation, this oil pumper is arranged on the concrete pedestal 1 of coal bed gas well well head, see Fig. 1 and composition graphs 2 and Fig. 3, oil pumper comprises: base 2, support 3, first head sheave 6, second head sheave 7, first flexible attachment components 5, second flexible attachment components 8, polished rod eye 4, weight member 10, motor 14, reducer 15, cylinder 17, displacement transducer 12 and electric-control system 19.
Support 3 is fixed on base 2, and the first head sheave 6 and the second head sheave 7 are fixed on the top of support 3.
Motor 14, reducer 15 and cylinder 17 are all fixed on base 2, and motor 14 is connected with the power shaft of reducer 15, and cylinder 17 is connected with the output shaft of reducer 15.
The one ends wound of the first flexible attachment components 5 is on cylinder 17, and the other end is walked around the first head sheave 6 and is connected with polished rod eye 4.
The one ends wound of the second flexible attachment components 8 is on cylinder 17, and the other end is walked around the second head sheave 7 and is connected with weight member 10.
Displacement transducer 12 is connected with cylinder 17, for detecting the angular displacement of cylinder 17.
Electric-control system 19 is for controlling the rotating speed of motor 14 and detecting the rotation direction of the angular displacement Data Control motor 14 of the cylinder 17 obtained according to displacement transducer 12.
The operating principle of the oil pumper that the utility model embodiment provides is: motor 14 drives cylinder 17 to rotate by reducer 15.Sucker rod is connected with the first flexible attachment components 5 by polished rod eye 4.When the first flexible attachment components 5 drives sucker rod to move upward, the first flexible attachment components 5 is wound around on cylinder 17, and now the second flexible attachment components 8 is released, and makes weight member 10 move downward to keep the balance of oil pumper.When the first flexible attachment components 5 drives sucker rod to move downward, the first flexible attachment components 5 is released, and now the second flexible attachment components 8 carries out winding weight member 10 is moved upward on cylinder 17.In cylinder 17 rotation process, displacement transducer 12 detects the angular displacement of cylinder 17, electric-control system 19 judges according to the angular displacement of the cylinder 17 detected the number of turns that the first flexible attachment components 5 is wound around or discharges, thus judges the distance that sucker rod rises or declines.When the distance judging that sucker rod rises or declines reaches design stroke, electric-control system 19 controls motor 14 change and turns to, thus changes the direction of motion of sucker rod.As can be seen here, the number of turns that the stroke of oil pumper that the utility model embodiment provides can be wound around by regulating the first flexible attachment components 5 or discharge regulates.The number of turns be wound around due to the first flexible attachment components 5 or discharge within the specific limits can consecutive variations, therefore achieves the continuous adjustment of oil pumper stroke.Meanwhile, electric-control system 19 can also regulate continuously motor speed thus realize the continuous adjustment to beam-pumping unit jig frequency.To sum up, the stroke of the oil pumper that the utility model embodiment provides and jig frequency can regulate continuously according to coal seam water water yield change in coal-bed gas exploitation process, can meet coal-bed gas exploitation demand, realize the high yield of coal bed gas, stable yields.
In above-mentioned oil pumper, motor 14 is connected with the power shaft of reducer 15 by belt pulley 21, and cylinder 17 is connected with the output shaft of reducer 15 by shaft coupling 16.
In above-mentioned oil pumper, electric-control system 19 comprises control circuit, drive circuit and the application program etc. that control motor 14 rotating speed and turn to necessity.
Brake 18 is also provided with in above-mentioned oil pumper.As shown in Figure 4, brake 18 to be fixed on base 2 and to be connected with shaft coupling 16.When there is power-off or other faults, Non-follow control brake 18 makes shaft coupling 16 stop operating, thus cylinder 17 is stopped operating, and avoids having an accident.
Above-mentioned oil pumper is also provided with lead 9.Lead 9 is positioned at the side of support 3 and vertically arranges.Lead 9 pairs of weight members 10 support and guide the direction of motion of weight member 10.Directive wheel can be set on weight member 10, weight member 10 can be moved along lead 9.
In above-mentioned oil pumper, the concrete form of weight member 10 does not have strict restriction, oil pumper can be made to keep balancing as long as have certain weight.Such as can comprise casing and balancing weight, balancing weight is placed on box house, be adjusted the weight of weight member 10 entirety by the quantity adjusting balancing weight.Balancing weight can be iron block, lead etc.
In above-mentioned oil pumper, the concrete form of the first flexible attachment components 5 and the second flexible attachment components 8 is not particularly limited, as long as have the gravity that some strength can bear weight member 10 and sucker rod.Can be such as belt or wire rope, also can adopt the form of belt and wire rope combination.The quantity of the first flexible attachment components 5 and the second flexible attachment components 8 does not have particular/special requirement yet, but from the viewpoint of cost, should reduce the quantity of the first flexible attachment components 5 and the second flexible attachment components 8 as far as possible.According to coal-bed gas exploitation needs, the quantity of the first flexible attachment components 5 preferably 2, the quantity of the second flexible attachment components 8 preferably 1.When the quantity of the first flexible attachment components 5 is 2, two the first head sheaves 6 can be set, 2 the first flexible attachment components 5 are walked around the first different head sheaves 6 respectively.Also 2 tracks can be set in first head sheave 6 and support the first flexible attachment components 5 respectively.
In above-mentioned oil pumper, for the ease of safeguarding the first head sheave 6 and the second head sheave 7, support 3 top is also provided with the first platform 13; Support 3 side is also provided with multiple second platform 20, so that the maintenance to support 3 diverse location.
In above-mentioned oil pumper, the surrounding of base 2 is also provided with fence 11, prevents the equipment be arranged on base 2 from being destroyed.
In above-mentioned oil pumper, in order to alleviate the weight of oil pumper entirety, support 3 can adopt truss-like support.
The stroke of the oil pumper that the utility model embodiment provides can reach 5m and can regulate continuously within the scope of 5m, jig frequency can reach 4 times and regulate continuously in 4 underranges, polished rod load can reach 8 tons, coal-bed gas exploitation needs can be met, realize the high yield of coal bed gas, stable yields.
The above is only understand the technical solution of the utility model for the ease of those skilled in the art, not in order to limit the utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. the oil pumper for coal-bed gas exploitation, described oil pumper is arranged on the concrete pedestal (1) of coal bed gas well well head, it is characterized in that, described oil pumper comprises: base (2), support (3), the first head sheave (6), the second head sheave (7), the first flexible attachment components (5), the second flexible attachment components (8), polished rod eye (4), weight member (10), motor (14), reducer (15), cylinder (17), displacement transducer (12) and electric-control system (19);
Described support (3) is fixed on described base (2), and described first head sheave (6) and described second head sheave (7) are fixed on the top of described support (3);
Described motor (14), described reducer (15) and described cylinder (17) are all fixed on described base (2), described motor (14) is connected with the power shaft of described reducer (15), and described cylinder (17) is connected with the output shaft of described reducer (15);
The one ends wound of described first flexible attachment components (5) is on described cylinder (17), and the other end is walked around described first head sheave (6) and is connected with described polished rod eye (4);
The one ends wound of described second flexible attachment components (8) is on described cylinder (17), and the other end is walked around described second head sheave (7) and is connected with described weight member (10);
Institute's displacement sensors (12) is connected with described cylinder (17), for detecting the angular displacement of described cylinder (17);
Described electric-control system (19) is for controlling the rotating speed of described motor (14) and the rotation direction of motor (14) described in the angular displacement Data Control detecting the described cylinder (17) obtained according to institute's displacement sensors (12).
2. oil pumper according to claim 1, is characterized in that, described motor (14) is connected by the power shaft of belt pulley (21) with described reducer (15); Described cylinder (17) is connected by the output shaft of shaft coupling (16) with described reducer (15).
3. oil pumper according to claim 2, is characterized in that, described oil pumper also comprises: brake (18); Described brake (18) is fixed on described base (2) and goes up and be connected with described shaft coupling (16).
4. oil pumper according to claim 1, is characterized in that, described oil pumper also comprises lead (9); Described lead (9) is positioned at the side of described support (3) and vertically arranges; Described weight member (10) can move along described lead (9).
5. oil pumper according to claim 1, is characterized in that, described weight member (10) comprises casing and balancing weight; Described balancing weight is positioned at described box house.
6. oil pumper according to claim 1, is characterized in that, described first flexible attachment components (5) is belt or wire rope, and described second flexible attachment components (8) is belt or wire rope.
7. oil pumper according to claim 6, is characterized in that, the quantity of described first flexible attachment components (5) is 2, and the quantity of described second flexible attachment components (8) is 1.
8. oil pumper according to claim 1, is characterized in that, described support (3) top is also provided with the first platform (13); Described support (3) side is also provided with the second platform (20).
9. oil pumper according to claim 1, is characterized in that, the surrounding of described base (2) is also provided with fence (11).
10. oil pumper according to claim 1, is characterized in that, described support (3) is truss-like support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876899.3U CN205135573U (en) | 2015-11-05 | 2015-11-05 | A beam -pumping unit for coal bed gas exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876899.3U CN205135573U (en) | 2015-11-05 | 2015-11-05 | A beam -pumping unit for coal bed gas exploitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135573U true CN205135573U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520876899.3U Active CN205135573U (en) | 2015-11-05 | 2015-11-05 | A beam -pumping unit for coal bed gas exploitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135573U (en) |
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2015
- 2015-11-05 CN CN201520876899.3U patent/CN205135573U/en active Active
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