CN218522788U - Valve group inclined shaft type oil well pump with guide rib - Google Patents
Valve group inclined shaft type oil well pump with guide rib Download PDFInfo
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- CN218522788U CN218522788U CN202222860022.8U CN202222860022U CN218522788U CN 218522788 U CN218522788 U CN 218522788U CN 202222860022 U CN202222860022 U CN 202222860022U CN 218522788 U CN218522788 U CN 218522788U
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- well pump
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Abstract
The valve bank inclined shaft type oil well pump with guide ribs relates to the technical field of oil well pumps and comprises a pump barrel, wherein a plunger assembly is arranged in the pump barrel along vertical lifting, the upper end part of the plunger assembly is connected with a pumping rod, a sand prevention cover is hermetically connected onto the pumping rod, the upper end part of the pump barrel is connected with a flaring coupling in a gradually expanding manner, an oiling channel is formed between the outer wall of the sand prevention cover and the inner wall of the flaring coupling, and a grinding sealing structure is arranged between the lower end part of the sand prevention cover and the flaring coupling. The utility model solves the problems that the valve ball falls off and the valve cover is easily worn, and the valve cover is easily broken and separated as long as time passes, because the oil well pump is in an inclined state in the use process of the oil well pump in the traditional technology; and in the process of the down stroke of the oil pump, sand grains in the oil easily fall into an area between the upper end part of the plunger and the pump cylinder, so that the plunger is easily clamped.
Description
Technical Field
The utility model relates to an oil-well pump technical field, concretely relates to valves area direction muscle inclined shaft formula oil-well pump.
Background
With the rapid development of the petroleum industry, horizontal wells, side wells and cluster wells are gradually increased, oil well pumps of high-inclination wells are increasingly used, and the oil well pumps are required to work at a certain inclination angle (25-75 ℃). Because the oil well pump is in an inclined state in the inclined shaft, the pump cylinder of the oil well pump is easy to bend and deform, and the valve ball and the valve seat cannot be opened and closed in time, so that well fluid is lost, and the discharge capacity of the oil well pump is reduced.
The prior art discloses a patent with publication number CN205036539U, which comprises a plunger assembly, a pump barrel assembly, a spring type traveling valve and a spring type fixed valve; the spring type traveling valve and the spring type fixed valve are provided with a centering structure. Therefore the utility model discloses rely on the effect of spring force to force the valve ball to close when the valve ball rises and falls, can not produce the valve ball and close the problem of laggard and valve ball inclined to one side of falling, improved the life-span and the pump efficiency of oil-well pump.
The prior device gradually exposes the defects of the technology along with the use, and is mainly expressed in the following aspects:
first, when the existing valve set is used, the oil well pump is in an inclined state, so that the valve ball is prone to aggravate abrasion to the valve cover, and the valve cover is prone to break off over time.
Secondly, in the process of the down stroke of the oil pump, sand grains in the oil easily fall into an area between the upper end of the plunger and the pump barrel, and the plunger is easily stuck.
In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model solves the problems that the valve ball is easy to fall off and the valve cover is easy to be worn seriously due to the inclined state of the oil well pump in the use process of the oil well pump in the traditional technology, and the valve cover is easy to break off after a long time; and in the process of the down stroke of the oil pump, sand grains in the oil easily fall into an area between the upper end part of the plunger and the pump barrel, so that the plunger is easily clamped.
In order to solve the above problem, the utility model provides a following technical scheme:
the valve bank inclined shaft type oil well pump with the guide rib comprises a pump cylinder, a plunger assembly is arranged in the pump cylinder along the vertical lifting direction, the upper end part of the plunger assembly is connected with an oil pumping rod,
the sucker rod is hermetically connected with a sand control cover, the upper end part of the pump barrel is connected with a flared coupling in a gradually expanding way, an oiling passage is formed between the outer wall of the sand control cover and the inner wall of the flared coupling,
and a grinding sealing structure is arranged between the lower end part of the sand prevention cover and the flaring coupling.
As an optimized scheme, an upper traveling valve and a lower traveling valve are fixedly connected in parallel in the plunger assembly from top to bottom, the lower end part of the pump cylinder is further connected with a fixed valve, and forced return structures are arranged in the upper traveling valve, the lower traveling valve and the fixed valve.
As an optimized scheme, the forced return structure comprises a pressure spring arranged in the valve housing body, the upper end part of the pressure spring abuts against the upper end part of the valve housing body, and the lower end part of the pressure spring abuts against the valve ball.
As an optimized scheme, a plurality of reinforcing ribs extending along the axial direction are arranged in the valve cover body in a surrounding mode along the circumferential direction, and the valve cover body forms a flow passage through the area between the adjacent reinforcing ribs.
As an optimized scheme, the reinforcing ribs are arranged in a triangular shape along the axial section, and a wear-resistant anticorrosive layer is arranged on the surface, in contact with the valve ball, of each reinforcing rib.
As an optimized scheme, the wear-resistant anticorrosive layer is a tungsten alloy coating.
As an optimized scheme, the grinding sealing structure comprises an upper grinding sealing surface which is arranged at the lower end of the sand prevention cover in a gradually expanding mode, and a lower grinding sealing surface matched with the upper grinding sealing surface is formed on the inner wall of the flaring coupling.
As an optimized scheme, the flaring coupling is provided with a central hole, a plurality of annular grooves are formed in the central hole from top to bottom in parallel, a sealing ring is clamped in each annular groove, and the inner ring of each sealing ring abuts against the sucker rod.
As an optimized scheme, a spiral guide vane is arranged on the inner wall between the top of the plunger assembly and the upper movable valve in a surrounding mode.
As an optimized scheme, the lower end part of the fixed valve is connected with an oil inlet pipeline, and a plurality of oil inlet holes are uniformly distributed in the peripheral wall of the oil inlet pipeline.
As an optimized scheme, a blocking plate is fixedly connected to the lower end portion of the oil inlet pipeline, and a sand settling area is formed through an area between the blocking plate and the oil inlet hole.
Compared with the prior art, the beneficial effects of the utility model are that:
the valve cover body is internally provided with a plurality of reinforcing ribs extending along the axial direction in a surrounding manner along the circumferential direction, so that the strength of the valve cover body is enhanced, and the phenomenon that a valve ball abrades the inner wall of the valve cover body when the valve cover is obliquely used in the traditional technology is prevented;
the reinforcing ribs are arranged along the axial section in a triangular shape, so that the supporting stability is improved;
the wear-resistant anticorrosive layer is arranged on the surface of the reinforcing rib, which is in contact with the valve ball, so that the radial runout of the valve ball in the valve cover is less than or equal to 1.2mm, the wear-resistant anticorrosive performance is further improved, and the service life and the stability of the valve body are improved;
the upper traveling valve, the lower traveling valve and the fixed valve are internally provided with the pressure springs, so that the valve ball is forced to return, and the phenomenon that the valve ball is affected by scaling and is untimely when the valve ball is used in an inclined shaft is prevented;
the plunger is connected above the plunger, so that when the plunger moves downwards during a downstroke, the plunger moves downwards, the sand control cover is driven by the sucker rod to be in contact with and sealed with the grinding sealing structure of the flaring coupling, meanwhile, the sand control cover and the sucker rod are sealed through the sealing ring, and the part above the plunger is not stressed by the pressure of the liquid column any more, so that the upstream valve and the upstream valve are quickly opened, the filling coefficient of liquid in a pump cylinder is increased, and the pump efficiency is improved;
during the down stroke, the sand prevention cover can fall to the upper part of the pump cylinder to realize the plugging of the opening of the pump cylinder, sand in oil cannot enter the pump cylinder from the upper part, and the accident that the plunger is blocked is prevented;
the sand and stone entering along with the oil can be gathered in the sand setting area by utilizing the sand setting area, so that the amount of the sand and stone entering into the pump cylinder is reduced;
the spiral guide vane is arranged above the upper traveling valve, so that the ascending oil is guided to generate a rotational flow, and the rotational flow sand-carrying and oil increasing capabilities are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the reinforcing rib of the present invention.
In the figure: 1-a pump cylinder; 2-flaring coupling; 3-a plunger assembly; 4, pumping rods; 5, a sand prevention cover; 6, oiling a channel; 7-grinding the sealing structure; 8-an upstream spool valve; 9-downstream valve; 10-helical guide vanes; 11-a pressure spring; 12-a fixed valve; 13-an oil inlet pipe; 14-oil inlet hole; 15-blocking plate; 16-a valve housing body; 17-reinforcing ribs; 18-wear resistant and corrosion resistant layer; 19-an overflow channel; 20-valve ball.
Detailed Description
Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
As shown in figures 1 and 2, the valve bank inclined shaft type oil well pump with the guide rib comprises a pump cylinder 1, a plunger assembly 3 is arranged in the pump cylinder 1 along the vertical lifting, the upper end part of the plunger assembly 3 is connected with an oil pumping rod 4,
the sucker rod 4 is hermetically connected with a sand control cover 5, the upper end part of the pump barrel is connected with a flared coupling 2 in a gradually expanding way, an oiling passage 6 is formed between the outer wall of the sand control cover 5 and the inner wall of the flared coupling 2,
and a grinding sealing structure 7 is arranged between the lower end part of the sand control cover 5 and the flaring coupling 2.
An upper traveling valve 8 and a lower traveling valve 9 are fixedly connected in parallel from top to bottom in the plunger assembly 3, the lower end part of the pump barrel 1 is also connected with a fixed valve 12, and forced return structures are arranged in the upper traveling valve 8, the lower traveling valve 9 and the fixed valve 12.
The forced return structure comprises a pressure spring 11 arranged in the valve housing body 16, the upper end of the pressure spring 11 is abutted against the upper end of the valve housing body 16, and the lower end of the pressure spring 11 is abutted against the valve ball 20.
The valve bonnet body 16 is internally provided with a plurality of reinforcing ribs 17 extending along the axial direction along the circumferential direction, and the valve bonnet body 16 forms a flow passage 19 through the area between the adjacent reinforcing ribs 17.
The reinforcing ribs 17 are arranged along the axial section in a triangular shape, and the surface of the reinforcing ribs 17, which is in contact with the valve ball 20, is provided with a wear-resistant anticorrosive layer 18.
The wear-resistant and corrosion-resistant layer 18 is a tungsten alloy coating.
The grinding sealing structure 7 comprises an upper grinding sealing surface which is arranged at the lower end part of the sand prevention cover 5 in a gradually expanding mode, and a lower grinding sealing surface matched with the upper grinding sealing surface is formed on the inner wall of the flaring coupling 2.
The flaring coupling 2 is provided with a central hole, a plurality of annular grooves are arranged in the central hole from top to bottom in parallel, a sealing ring is clamped in each annular groove, and the inner ring of each sealing ring is abutted to the sucker rod 4.
And a spiral guide vane 10 is arranged on the inner wall between the top of the plunger assembly 3 and the upper movable valve 8.
The lower end of the fixed valve 12 is connected with an oil inlet pipe 13, and a plurality of oil inlet holes 14 are uniformly distributed on the peripheral wall of the oil inlet pipe 13.
The lower end of the oil inlet pipe 13 is fixedly connected with a blocking plate 15, and a sand settling area is formed by the area between the blocking plate 15 and the oil inlet hole 14.
The working principle of the device is as follows:
the valve bonnet body 16 is internally provided with a plurality of reinforcing ribs 17 extending along the axial direction in a surrounding manner along the circumferential direction, so that the strength of the valve bonnet body 16 is enhanced, and the phenomenon that the valve ball 20 abrades the inner wall of the valve bonnet body 16 when the valve bonnet is obliquely used in the prior art is prevented;
the reinforcing ribs 17 are arranged along the axial section in a triangular shape, so that the supporting stability is improved;
the wear-resistant anticorrosive layer 18 is arranged on the surface of the reinforcing rib 17, which is in contact with the valve ball 20, so that the radial runout of the valve ball 20 in the valve cover is less than or equal to 1.2mm, the wear-resistant anticorrosive performance is further improved, and the service life and the stability of the valve body are improved;
the upper traveling valve 8, the lower traveling valve 9 and the fixed valve 12 are internally provided with the pressure springs 11, so that the valve ball 20 is forcedly returned, and the phenomenon that the valve ball 20 is affected by scaling and is untimely when used in an inclined shaft is prevented;
the sand control cover 5 is connected above the plunger, so that when the down stroke is realized, the plunger moves downwards, the sand control cover 5 is driven by the sucker rod 4 to be in contact seal with the grinding seal structure 7 of the flared coupling 2, meanwhile, the sand control cover 5 and the sucker rod 4 are sealed through a seal ring, and the pressure of a liquid column is not applied to the upper part of the plunger, so that the upper movable valve 8 and the upper movable valve 8 are rapidly opened, the filling coefficient of liquid in the pump barrel 1 is increased, and the pump efficiency is improved;
during the downward stroke, the sand prevention cover 5 falls to the upper part of the pump cylinder 1 to realize the plugging of the opening of the pump cylinder 1, sand in oil cannot enter the pump cylinder 1 from the upper part, and the accident that a plunger is blocked is prevented;
the sand and stone entering along with the oil can be gathered in the sand setting area by utilizing the sand setting area, so that the amount of the sand and stone entering into the pump cylinder is reduced;
the spiral guide vane 10 is arranged above the upper traveling valve 8, so that the ascending oil is guided to generate a rotational flow, and the rotational flow sand-carrying and oil increasing capabilities are achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. The valve bank area direction muscle inclined shaft formula oil-well pump, its characterized in that: comprises a pump barrel (1), a plunger assembly (3) is arranged in the pump barrel (1) along the vertical lifting, the upper end part of the plunger assembly (3) is connected with a sucker rod (4),
the sucker rod (4) is hermetically connected with a sand control cover (5), the upper end part of the pump barrel is connected with a flaring coupling (2) in a gradually expanding manner, an oiling channel (6) is formed between the outer wall of the sand control cover (5) and the inner wall of the flaring coupling (2),
and a grinding sealing structure (7) is arranged between the lower end part of the sand prevention cover (5) and the flaring coupling (2).
2. The valve group slant well type oil well pump with the guide rib according to claim 1, characterized in that: an upper traveling valve (8) and a lower traveling valve (9) are fixedly connected in the plunger assembly (3) from top to bottom in parallel, the lower end part of the pump cylinder (1) is further connected with a fixed valve (12), and forced return structures are arranged in the upper traveling valve (8), the lower traveling valve (9) and the fixed valve (12).
3. The valve group inclined shaft type oil well pump with the guide rib as claimed in claim 2, characterized in that: the forced return structure comprises a pressure spring (11) arranged in a valve cover body (16), the upper end of the pressure spring (11) abuts against the upper end of the valve cover body (16), and the lower end of the pressure spring (11) abuts against a valve ball (20).
4. The valve group inclined shaft type oil well pump with the guide rib according to claim 3, characterized in that: the valve cover comprises a valve cover body (16), wherein a plurality of reinforcing ribs (17) extending along the axial direction are arranged in the valve cover body (16) in a surrounding mode along the circumferential direction, and the valve cover body (16) forms overflowing channels (19) through areas between the adjacent reinforcing ribs (17).
5. The valve group inclined shaft type oil well pump with the guide rib according to claim 4, characterized in that: the reinforcing ribs (17) are arranged along the axial section in a triangular mode, and a wear-resistant anticorrosive layer (18) is arranged on the contact surface of the reinforcing ribs (17) and the valve ball (20).
6. The valve group inclined shaft type oil well pump with the guide rib according to claim 5, characterized in that: the wear-resistant anticorrosive layer (18) is a tungsten alloy coating.
7. The valve group inclined shaft type oil well pump with the guide rib according to claim 6, characterized in that: the grinding sealing structure (7) comprises an upper grinding sealing surface which is arranged at the lower end of the sand prevention cover (5) in a gradually expanding mode, and a lower grinding sealing surface matched with the upper grinding sealing surface is formed on the inner wall of the flaring coupling (2).
8. The valve group slant well type oil well pump with the guide rib according to claim 7, characterized in that: the flaring coupling (2) has been seted up the centre bore, set up a plurality of annular in parallel by last in the centre bore under to, every the annular inside callipers is equipped with the sealing washer, the inner circle of sealing washer with sucker rod (4) offset.
9. The valve group slant well type oil well pump with the guide rib according to claim 8, characterized in that: and a spiral guide vane (10) is arranged on the upper periphery of the inner wall between the top of the plunger assembly (3) and the upper traveling valve (8).
10. The valve group slant well type oil well pump with the guide rib according to claim 9, characterized in that: the lower end of the fixed valve (12) is connected with an oil inlet pipeline (13), and a plurality of oil inlet holes (14) are uniformly distributed on the peripheral wall of the oil inlet pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222860022.8U CN218522788U (en) | 2022-10-28 | 2022-10-28 | Valve group inclined shaft type oil well pump with guide rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222860022.8U CN218522788U (en) | 2022-10-28 | 2022-10-28 | Valve group inclined shaft type oil well pump with guide rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218522788U true CN218522788U (en) | 2023-02-24 |
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ID=85250514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222860022.8U Active CN218522788U (en) | 2022-10-28 | 2022-10-28 | Valve group inclined shaft type oil well pump with guide rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218522788U (en) |
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2022
- 2022-10-28 CN CN202222860022.8U patent/CN218522788U/en active Active
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