CN210509547U - Long-plunger oil well pump with stable liquid flow - Google Patents
Long-plunger oil well pump with stable liquid flow Download PDFInfo
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- CN210509547U CN210509547U CN201921240669.2U CN201921240669U CN210509547U CN 210509547 U CN210509547 U CN 210509547U CN 201921240669 U CN201921240669 U CN 201921240669U CN 210509547 U CN210509547 U CN 210509547U
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Abstract
The utility model relates to a steady long plunger oil-well pump of liquid stream. The technical scheme is as follows: a long plunger oil well pump with stable liquid flow comprises an outer tube mechanism, wherein a pump cylinder mechanism is connected in the outer tube mechanism, a plunger mechanism is sleeved in the pump cylinder mechanism, and one end of the outer tube mechanism is connected with an oil inlet valve; the oil inlet valve comprises an oil inlet valve body, one end of the oil inlet valve body is connected with the outer pipe mechanism, the other end of the oil inlet valve body is connected with an oil inlet valve seat, an oil inlet valve cavity is formed in the oil inlet valve body, and an oil inlet valve ball is further arranged in the oil inlet valve cavity; an oil inlet hole is formed in one end, close to the outer pipe mechanism, of the oil inlet valve cavity, an oil inlet valve ball supporting seat is fixed on the oil inlet valve body and located in the middle of the oil inlet valve cavity, and one end, close to the oil inlet valve ball, of the oil inlet valve ball supporting seat is in a circular arc shape. The utility model provides a through the vibrations that reduce the oil feed valve ball with long plunger oil-well pump guaranteeing the liquid flow steadily, prolonged and reduced the required power of beam-pumping unit, the life of oil-well pump damage.
Description
Technical Field
The utility model belongs to the technical field of the long plunger oil-well pump, concretely relates to steady long plunger oil-well pump of liquid stream.
Background
The oil well pump is a downhole device driven by the oil pumping unit to lift crude oil in a well to the ground. The ordinary oil pump is mainly composed of pump barrel, suction valve, piston and discharge valve. The oil well pump can be divided into a tube pump and a rod pump according to the underground fixing mode of the oil well pump.
In the oil pumping process of the long-plunger oil well pump, liquid in the well enters the pump through the lateral oil inlet hole of the bridge type oil inlet valve assembly and is discharged onto the pump through the plunger. Because the upper movable valve cover of the long plunger oil well pump is always exposed outside the pump barrel, the oil outlet flow cross section is not limited by the inner diameter of the pump barrel, and the oil outlet resistance is smaller than that of a conventional pump. The down resistance of the plunger is small, and the pump efficiency is high, so the device is also suitable for pumping thick oil.
The utility model with the patent application number of CN201029000005.9 discloses a long plunger gap bridge oil pump, which comprises a gap bridge outer tube, wherein both ends of the gap bridge outer tube are respectively connected with an upper joint and a lower joint, the utility model discloses a short pump barrel and lower pump pipe have at the outer tube endotheca of gap bridge, and short pump barrel upper end is unsettled, short pump barrel lower extreme and lower pump pipe threaded connection, lower pump pipe lower extreme and lower joint threaded connection, short pump barrel and lower pump pipe endotheca have long plunger, long plunger and short pump barrel sliding fit, and the length of long plunger is greater than the length of short pump barrel, and the upper and lower both ends correspondence of long plunger is connected with the valve bonnet that moves about from top to bottom, and the external diameter of valve bonnet that moves about is greater than short pump barrel internal diameter, is connected with the inlet valve on the lower clutch, the utility model discloses can realize the promotion of crude oil in the pit, solve scale deposit in the pump barrel and the cracked problem of upper traveling valve, improve its suitability, the specially adapted deep well or pump need load tail string oil.
However, in the working process of the oil well pump, the valve ball in the oil inlet valve generates excessive vibration under the impact of liquid. Excessive vibration of the valve ball causes unstable flow of liquid through the inlet valve. Therefore, in the oil pumping process, the flow of the liquid is unstable and excessive turbulence is generated, so that the power required by the oil pumping unit is increased. When the liquid flow is unstable, the oil well pump is easy to generate erosion or fatigue damage under the impact of the liquid flow.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a through the vibrations that reduce the oil feed valve ball long plunger oil-well pump steadily in order to guarantee the liquid stream, prolonged and reduced the required power of beam-pumping unit, the life of oil-well pump damage.
The utility model discloses the technical scheme who adopts does:
a long plunger oil well pump with stable liquid flow comprises an outer tube mechanism, wherein a pump cylinder mechanism is connected in the outer tube mechanism, a plunger mechanism is sleeved in the pump cylinder mechanism, and one end of the outer tube mechanism is connected with an oil inlet valve; the oil inlet valve comprises an oil inlet valve body, one end of the oil inlet valve body is connected with the outer pipe mechanism, the other end of the oil inlet valve body is connected with an oil inlet valve seat, an oil inlet valve cavity is formed in the oil inlet valve body, and an oil inlet valve ball is further arranged in the oil inlet valve cavity; an oil inlet hole is formed in one end, close to the outer pipe mechanism, of the oil inlet valve cavity, an oil inlet valve ball supporting seat is fixed on the oil inlet valve body and located in the middle of the oil inlet valve cavity, and one end, close to the oil inlet valve ball, of the oil inlet valve ball supporting seat is in a circular arc shape.
Preferably, the surface shape of the part, facing the oil inlet valve ball, of the oil inlet valve seat is in a circular arc shape.
Preferably, the plunger mechanism comprises a plunger pipe, the upper end of the plunger pipe is connected with an upstream movable valve, the lower end of the plunger pipe is connected with a downstream movable valve, and the plunger pipe, the upstream movable valve and the downstream movable valve are all sleeved in the pump barrel mechanism.
Preferably, the upstream valve comprises an upstream moving valve body, an upstream moving valve cavity is arranged in the upstream moving valve body, an upstream moving valve ball is arranged in the upstream moving valve cavity, one end of the upstream moving valve body is connected with an upstream moving valve seat joint, and the other end of the upstream moving valve seat joint is connected with the plunger pipe; an upper traveling valve ball supporting arc surface is arranged on the inner wall of one end, away from the upper traveling valve seat joint, of the upper traveling valve cavity; and an isolation mesh enclosure is arranged in the upstream valve cavity and separates the upstream valve ball from the upstream oil moving hole.
Preferably, the surface of the upstream valve seat joint facing the upstream ball is circular arc-shaped.
Preferably, the downstream valve comprises a downstream moving valve body, one end of the downstream moving valve body is connected with the plunger pipe, and the other end of the downstream moving valve body is connected with a lower moving valve seat joint; a lower moving valve cavity is arranged in the lower moving valve body, and a lower moving valve ball is arranged in the lower moving valve cavity; one end, far away from the lower traveling valve seat joint, of the lower traveling valve cavity is provided with a lower traveling oil hole, a lower traveling valve ball supporting seat is fixed on the lower traveling valve body and located in the middle of the lower traveling valve cavity, and one end, close to the lower traveling valve ball, of the lower traveling valve ball supporting seat is arc-shaped.
Preferably, the surface shape of the part of the downstream valve seat joint facing the downstream valve ball is a circular arc.
Preferably, the outer tube mechanism comprises an upper joint, one end of the upper joint is connected with a gap bridge outer tube, the other end of the gap bridge outer tube is connected with a lower joint, and the pump cylinder mechanism is located in the gap bridge outer tube.
Preferably, pump barrel mechanism includes down the pump line, and the one end that the pump line is close to the fuel inlet valve down is connected with outer tube mechanism, and the other end of pump line is connected with the pump barrel down, and the other end on the pump barrel is free, and lower pump line and pump barrel all overlap and locate in the outer tube mechanism.
The utility model has the advantages that:
1. the utility model discloses a be fixed with oil feed valve ball supporting seat on the oil feed valve body, oil feed valve ball supporting seat can support the oil feed valve ball when the interior oil feed of oil feed valve, improves the stability of oil feed valve ball. The shape of one end, close to the oil inlet valve ball, of the oil inlet valve ball supporting seat is arc-shaped, so that in the oil inlet process, the oil inlet valve ball is in contact with the arc-shaped oil inlet valve ball supporting seat after leaving the oil inlet valve seat, the oil inlet valve ball supporting seat is reliably supported, and the oil inlet valve ball is further prevented from generating excessive vibration. The oil inlet valve ball supporting seat is positioned in the middle of the oil inlet valve cavity, so that liquid flows around the oil inlet valve ball uniformly, and the flowing stability of the liquid is further improved. Therefore, the turbulent flow of the liquid passing through the oil inlet valve is reduced, and the power required by the oil pumping unit is reduced. When the flow is stable, the impact of liquid on each element of the oil well pump is reduced, the condition that the elements in the oil well pump are eroded is reduced, the fatigue and damage degree of the oil well pump is correspondingly reduced, and the service life of the oil well pump is prolonged.
2. The surface shape of the part of the oil inlet valve seat facing the oil inlet valve ball is arc-shaped, so that when the plunger mechanism moves downwards, the oil inlet valve ball can be in good contact with the oil inlet valve seat, the oil inlet valve ball can play a good sealing role at the moment, liquid in the pump cylinder mechanism can enter the plunger mechanism, and the oil pumping rate is improved.
3. The plunger pipe is connected with the upstream movable valve and the downstream movable valve, when the plunger pipe moves upwards, the upstream movable valve and the downstream movable valve on the plunger pipe are closed under the action of gravity, and liquid in the plunger mechanism is lifted to the ground. Meanwhile, the space of the pump cavity at the lower end of the plunger mechanism is increased, the pressure is reduced, the oil inlet valve is opened under the action of the pressure difference between the inside and the outside of the pump, and liquid in the well enters the pump cylinder mechanism through the oil inlet valve. When the plunger tube moves downwards, the oil inlet valve is closed under the action of self weight, the space of the pump cavity at the lower end of the plunger mechanism is reduced, the pressure is increased, the upstream movable valve and the downstream movable valve are opened, and the liquid in the pump barrel mechanism is pumped out. Therefore, the arrangement of the upstream valve and the downstream valve facilitates the extraction of liquid from the well.
4. And after the upper traveling valve ball is separated from the upper traveling valve seat, the upper traveling valve ball is tightly attached to the support circular arc surface of the upper traveling valve ball. The condition that the upper swimming valve ball generates overlarge vibration under the impact of liquid flow is avoided. The liquid flowing from the plunger pipe through the upstream valve is more stable, and the stability of the liquid flow in the oil pumping process is further improved. The upper traveling valve ball can be tightly attached to the support circular arc surface of the upper traveling valve ball, and the isolation mesh enclosure can block the upper traveling valve ball, so that the condition that the upper traveling valve ball blocks the upper traveling oil hole is avoided.
5. The surface of the part of the upper traveling valve seat joint facing the upper traveling valve ball is in a circular arc shape, so that when the plunger mechanism moves upwards, the upper traveling valve ball can be well sealed with the upper traveling valve seat joint, and liquid in a well can be guaranteed to smoothly flow into the pump cylinder mechanism from the oil inlet valve.
6. After the lower traveling valve ball is separated from the lower traveling valve seat joint, the lower traveling valve ball is tightly attached to the lower traveling valve ball supporting seat. The condition that the lower swimming valve ball generates overlarge vibration under the impact of liquid flow is avoided. The liquid flowing from the plunger pipe through the downstream valve is more stable, and the stability of the liquid flow in the oil pumping process is further improved.
7. The surface of the part of the lower traveling valve seat joint facing the lower traveling valve ball is in a circular arc shape, so that when the plunger mechanism moves upwards, the lower traveling valve ball can be well sealed with the lower traveling valve seat joint, and liquid in a well can be guaranteed to smoothly flow into the pump cylinder mechanism from the oil inlet valve.
8. It is convenient that top connection and lower clutch the utility model discloses be connected with the external joint, guarantee the utility model discloses can be used for oil recovery.
9. When the plunger mechanism does up-and-down reciprocating motion, the pump cylinder is always in contact with the plunger mechanism, so that scale ions are not easy to deposit and form a scale layer on the surfaces of the pump cylinder and the plunger mechanism.
The advantages of the invention are not limited to the description, but rather are described in greater detail in the detailed description for better understanding.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of an oil feed valve;
FIG. 3 is a schematic structural view of the plunger mechanism;
FIG. 4 is a schematic illustration of the structure of an upstream valve;
FIG. 5 is a schematic illustration of a downstream valve configuration;
FIG. 6 is a schematic structural view of the outer tube mechanism;
fig. 7 is a schematic structural view of the pump cylinder mechanism.
In the figure: 1-an outer tube mechanism; 11-upper joint; 12-bridge crossing outer tube; 13-lower joint; 2-a pump barrel mechanism; 21-pump down pipe; 22-a pump cylinder; 3-a plunger mechanism; 31-a plunger tube; 4-an oil inlet valve; 41-oil inlet valve body; 42-an oil inlet valve seat; 43-oil inlet valve cavity; 44-inlet valve ball; 45-oil inlet hole; 46-an oil inlet valve ball support seat; 5-an upstream valve; 51-an upstream movable valve body; 52-an upstream valve cavity; 53-upper swimming valve ball; 54-upper traveling seat adapter; 55-an upstream oil moving hole; 56-upper traveling valve ball support arc surface; 57-an isolation mesh enclosure; 6-downstream valve; 61-downstream movable valve body; 62-lower traveling valve seat joint; 63-lower floating valve cavity; 64-lower traveling valve ball; 65-downstream oil moving hole; 66-downstream valve ball support seat.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1:
as shown in fig. 1 and 2, the utility model comprises an outer tube mechanism 1, a pump barrel mechanism 2 is connected with the inner thread of the outer tube mechanism 1, a plunger mechanism 3 is sleeved in the pump barrel mechanism 2, and an oil inlet valve 4 is connected with one end of the outer tube mechanism 1 through a thread; the oil inlet valve 4 comprises an oil inlet valve body 41, one end of the oil inlet valve body 41 is in threaded connection with the outer pipe mechanism 1, the other end of the oil inlet valve body 41 is in threaded connection with an oil inlet valve seat 42, an oil inlet valve cavity 43 is formed in the oil inlet valve body 41, and an oil inlet valve ball 44 is further arranged in the oil inlet valve cavity 43; an oil inlet hole 45 is formed in one end, close to the outer pipe mechanism 1, of the oil inlet valve cavity 43, an oil inlet valve ball supporting seat 46 is fixed on the oil inlet valve body 41, the oil inlet valve ball supporting seat 46 is located in the middle of the oil inlet valve cavity 43, and one end, close to the oil inlet valve ball 44, of the oil inlet valve ball supporting seat 46 is in a circular arc shape.
The utility model discloses a be fixed with oil feed valve ball supporting seat 46 on the oil feed valve body 41, oil feed valve ball supporting seat 46 can support oil feed valve ball 44 when the oil feed in the inlet valve 4, improves oil feed valve ball 44's stability. The shape of one end of the oil inlet valve ball support seat 46 close to the oil inlet valve ball 44 is arc-shaped, so that in the oil inlet process, the oil inlet valve ball 44 is in contact with the arc-shaped oil inlet valve ball support seat 46 after leaving the oil inlet valve seat 42, the oil inlet valve ball support seat 46 is reliably supported, and the oil inlet valve ball 44 is further prevented from generating excessive vibration. The oil inlet valve ball support seat 46 is positioned in the middle of the oil inlet valve cavity 43, so that the liquid flows around the oil inlet valve ball 44 uniformly, and the smoothness of the liquid flow is further improved. Therefore, the turbulent flow of the liquid passing through the oil inlet valve 4 is reduced, and the power required by the oil pumping unit is reduced. When the flow is stable, the impact of liquid on each element of the oil well pump is reduced, the condition that the elements in the oil well pump are eroded is reduced, the fatigue and damage degree of the oil well pump is correspondingly reduced, and the service life of the oil well pump is prolonged.
As shown in fig. 2, the surface of the oil inlet valve seat 42 facing the oil inlet valve ball 44 is shaped like a circular arc. The surface of the part of the oil inlet valve seat 42 facing the oil inlet valve ball 44 is arc-shaped, so that when the plunger mechanism 3 moves downwards, the oil inlet valve ball 44 can be in good contact with the oil inlet valve seat 42, the oil inlet valve ball 44 can play a good sealing role at the moment, liquid in the pump barrel mechanism 2 can enter the plunger mechanism 3, and the oil pumping rate is improved.
Example 2:
as shown in fig. 3, the plunger mechanism 3 includes a plunger tube 31, an upper traveling valve 5 is connected to an upper end of the plunger tube 31 through a screw, a lower traveling valve 6 is connected to a lower end of the plunger tube 31, and the plunger tube 31, the upper traveling valve 5, and the lower traveling valve 6 are all fitted in the pump cylinder mechanism 2.
When the upstream valve 5 and the downstream valve 6 are connected to the plunger tube 31, when the plunger tube 31 moves upward, the upstream valve 5 and the downstream valve 6 on the plunger tube 31 are closed by gravity, and the liquid in the plunger mechanism 3 is lifted to the ground. Meanwhile, the space of the pump cavity at the lower end of the plunger mechanism 3 is increased, the pressure is reduced, the oil inlet valve 4 is opened under the action of the difference between the internal pressure and the external pressure of the pump, and liquid in the well enters the pump barrel mechanism 2 through the oil inlet valve 4. When the plunger tube 31 moves downward, the oil inlet valve 4 is closed under the action of the self-weight, the pump chamber space at the lower end of the plunger mechanism 3 is reduced, the pressure is increased, the upstream valve 5 and the downstream valve 6 are opened, and the liquid in the pump barrel mechanism 2 is pumped out. Thus, the provision of the upstream and downstream valves 5, 6 facilitates the extraction of fluid from the well.
Further, as shown in fig. 4, the upstream valve 5 includes an upstream valve body 51, an upstream moving valve cavity 52 is arranged in the upstream valve body 51, an upstream moving valve ball 53 is arranged in the upstream valve cavity 52, one end of the upstream valve body 51 is in threaded connection with an upstream valve seat joint 54, and the other end of the upstream valve seat joint 54 is in threaded connection with the plunger pipe 31; an upstream movable oil hole 55 is formed in the side edge of one end, far away from the upstream valve seat joint 54, of the upstream valve cavity 52, and an upstream movable valve ball supporting circular arc surface 56 is formed in the inner wall of one end, far away from the upstream valve seat joint 54, of the upstream valve cavity 52; an isolation mesh enclosure 57 is installed in the upstream valve cavity 52, and the upstream spool ball 53 and the upstream oil hole 55 are separated by the isolation mesh enclosure 57.
When the upper traveling valve ball 53 disengages from the upper traveling valve seat 54, the upper traveling valve ball 53 abuts the upper traveling valve ball support arc 56. The upstream ball 53 is prevented from generating excessive shock under the impact of fluid flow. The liquid flowing from the plunger pipe 31 through the upstream valve 5 flows more stably, and the stability of the liquid flow in the oil pumping process is further improved. The upstream ball 53 can be closely attached to the upstream ball support arc 56, and the isolation mesh enclosure 57 can block the upstream ball 53, thereby avoiding the situation that the upstream ball 53 blocks the upstream oil hole 55.
The surface of the upstream seat adapter 54 facing the upstream ball 53 is circular arc shaped. The surface of the upper traveling valve seat joint 54 facing the upper traveling valve ball 53 is circular arc, so that when the plunger mechanism 3 moves upward, the upper traveling valve ball 53 can be well sealed with the upper traveling valve seat joint 54, and the well fluid can be ensured to smoothly flow into the pump cylinder mechanism 2 from the oil inlet valve 4.
Further, as shown in fig. 5, the downstream valve 6 includes a downstream valve body 61, one end of the downstream valve body 61 is screwed with the plunger pipe 31, and the other end of the downstream valve body 61 is screwed with a downstream valve seat joint 62; a lower moving valve cavity 63 is arranged in the downstream moving valve body 61, and a lower moving valve ball 64 is arranged in the downstream moving valve cavity 63; one end of the lower traveling valve cavity 63, which is far away from the lower traveling valve seat joint 62, is provided with a lower traveling oil hole 65, a lower traveling valve ball support seat 66 is fixed on the lower traveling valve body 61, the lower traveling valve ball support seat 66 is positioned in the middle of the lower traveling valve cavity 63, and one end of the lower traveling valve ball support seat 66, which is close to the lower traveling valve ball 64, is in the shape of a circular arc.
After the lower traveling valve ball 64 disengages from the lower traveling valve seat adapter 62, the lower traveling valve ball 64 abuts the lower traveling valve ball support seat 66. The lower traveling valve ball 64 is prevented from generating excessive vibration under the impact of the liquid flow. The liquid flowing from the plunger pipe 31 through the downstream valve 6 flows more stably, and the stability of the liquid flow in the oil pumping process is further improved.
The surface of the lower traveling seat adapter 62 facing the downstream valve ball 64 is circular arc shaped. The surface of the part of the lower traveling valve seat joint 62 facing the lower traveling valve seat ball 64 is arc-shaped, so that when the plunger mechanism 2 moves upwards, the lower traveling valve seat ball 64 can be well sealed with the lower traveling valve seat joint 62, and the liquid in the well can be ensured to smoothly flow into the pump cylinder mechanism 2 from the oil inlet valve 4.
Example 3:
on the basis of embodiment 1 or embodiment 2, as shown in fig. 6, the outer tube mechanism 1 includes an upper joint 11, one end of the upper joint 11 is connected with a bridge outer tube 12 by screw threads, the other end of the bridge outer tube 12 is connected with a lower joint 13 by screw threads, and the pump barrel mechanism 2 is located in the bridge outer tube 12. Top connection 11 and lower clutch 13 are convenient the utility model discloses be connected with the outside joint, guarantee the utility model discloses can be used for oil recovery.
As shown in fig. 7, the pump barrel mechanism 2 includes a lower pump pipe 21, one end of the lower pump pipe 21 close to the oil inlet valve 4 is connected to the outer pipe mechanism 1, the other end of the lower pump pipe 21 is connected to a pump barrel 22, the other end of the pump barrel 22 is free, and both the lower pump pipe 21 and the pump barrel 22 are sleeved in the outer pipe mechanism 1. When the plunger mechanism 3 reciprocates up and down, the pump cylinder 22 is always in contact with the plunger mechanism 3, so that scale ions are not easy to deposit on the surfaces of the pump cylinder 22 and the plunger mechanism 3 to form a scale layer.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (9)
1. A long plunger oil well pump with stable liquid flow comprises an outer tube mechanism (1), wherein a pump cylinder mechanism (2) is connected in the outer tube mechanism (1), a plunger mechanism (3) is sleeved in the pump cylinder mechanism (2), and one end of the outer tube mechanism (1) is connected with an oil inlet valve (4); the oil inlet valve (4) comprises an oil inlet valve body (41), one end of the oil inlet valve body (41) is connected with the outer pipe mechanism (1), the other end of the oil inlet valve body (41) is connected with an oil inlet valve seat (42), an oil inlet valve cavity (43) is formed in the oil inlet valve body (41), and an oil inlet valve ball (44) is further arranged in the oil inlet valve cavity (43); the method is characterized in that: an oil inlet hole (45) is formed in one end, close to the outer pipe mechanism (1), of the oil inlet valve cavity (43), an oil inlet valve ball supporting seat (46) is fixed on the oil inlet valve body (41), the oil inlet valve ball supporting seat (46) is located in the middle of the oil inlet valve cavity (43), and one end, close to the oil inlet valve ball (44), of the oil inlet valve ball supporting seat (46) is in a circular arc shape.
2. The long plunger oil well pump with smooth liquid flow of claim 1, wherein: the surface of the part, facing the oil inlet valve ball (44), of the oil inlet valve seat (42) is arc-shaped.
3. The long plunger oil well pump with smooth liquid flow of claim 1, wherein: plunger mechanism (3) are connected with upper traveling valve (5) including plunger pipe (31), the upper end of plunger pipe (31), and the lower extreme of plunger pipe (31) is connected with lower traveling valve (6), and plunger pipe (31), upper traveling valve (5), lower traveling valve (6) all overlap in pump barrel mechanism (2).
4. The long plunger oil well pump with smooth liquid flow as claimed in claim 3, wherein: the upper traveling valve (5) comprises an upper traveling valve body (51), an upper traveling valve cavity (52) is arranged in the upper traveling valve body (51), an upper traveling valve ball (53) is arranged in the upper traveling valve cavity (52), one end of the upper traveling valve body (51) is connected with an upper traveling valve seat joint (54), and the other end of the upper traveling valve seat joint (54) is connected with the plunger pipe (31); an upstream movable oil hole (55) is formed in the side edge of one end, far away from the upstream valve seat joint (54), of the upstream valve cavity (52), and an upstream movable valve ball supporting arc surface (56) is formed in the inner wall of one end, far away from the upstream valve seat joint (54), of the upstream valve cavity (52); an isolation mesh enclosure (57) is installed in the upper swimming valve cavity (52), and the upper swimming valve ball (53) and the upstream oil moving hole (55) are separated by the isolation mesh enclosure (57).
5. The long plunger oil well pump with smooth liquid flow as claimed in claim 4, wherein: the surface of the part of the upper swimming valve seat joint (54) facing the upper swimming valve ball (53) is in a circular arc shape.
6. The long plunger oil well pump with smooth liquid flow as claimed in claim 3, wherein: the downstream valve (6) comprises a downstream movable valve body (61), one end of the downstream movable valve body (61) is connected with the plunger pipe (31), and the other end of the downstream movable valve body (61) is connected with a lower traveling valve seat joint (62); a lower moving valve cavity (63) is arranged in the downstream moving valve body (61), and a lower moving valve ball (64) is arranged in the lower moving valve cavity (63); one end, far away from the lower traveling valve seat joint (62), of the lower traveling valve cavity (63) is provided with a lower traveling oil hole (65), a lower traveling valve ball supporting seat (66) is fixed on the lower traveling valve body (61), the lower traveling valve ball supporting seat (66) is located in the middle of the lower traveling valve cavity (63), and one end, close to the lower traveling valve ball (64), of the lower traveling valve ball supporting seat (66) is in a circular arc shape.
7. The long plunger oil well pump with smooth liquid flow of claim 6, wherein: the surface of the part of the lower traveling valve seat joint (62) facing the lower traveling valve ball (64) is in the shape of a circular arc.
8. The long plunger oil well pump with smooth liquid flow of claim 1, wherein: the outer tube mechanism (1) comprises an upper joint (11), one end of the upper joint (11) is connected with a gap bridge outer tube (12), the other end of the gap bridge outer tube (12) is connected with a lower joint (13), and the pump cylinder mechanism (2) is located in the gap bridge outer tube (12).
9. The long-plunger oil well pump with stable liquid flow as claimed in any one of claims 1 to 8, wherein: pump barrel mechanism (2) are connected with outer tube mechanism (1) including lower pump line (21), lower pump line (21) one end that is close to inlet valve (4), and the other end of lower pump line (21) is connected with pump barrel (22), and the other end on pump barrel (22) is free, and lower pump line (21) and pump barrel (22) all overlap and locate in outer tube mechanism (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921240669.2U CN210509547U (en) | 2019-08-01 | 2019-08-01 | Long-plunger oil well pump with stable liquid flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921240669.2U CN210509547U (en) | 2019-08-01 | 2019-08-01 | Long-plunger oil well pump with stable liquid flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210509547U true CN210509547U (en) | 2020-05-12 |
Family
ID=70587182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921240669.2U Active CN210509547U (en) | 2019-08-01 | 2019-08-01 | Long-plunger oil well pump with stable liquid flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210509547U (en) |
-
2019
- 2019-08-01 CN CN201921240669.2U patent/CN210509547U/en active Active
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