CN210087588U - Oil pumping device driven by submersible motor - Google Patents
Oil pumping device driven by submersible motor Download PDFInfo
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- CN210087588U CN210087588U CN201920904257.8U CN201920904257U CN210087588U CN 210087588 U CN210087588 U CN 210087588U CN 201920904257 U CN201920904257 U CN 201920904257U CN 210087588 U CN210087588 U CN 210087588U
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- submersible motor
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Abstract
The utility model relates to an oil pumping unit driven by an oil-submersible motor, which comprises the oil-submersible motor, wherein the output shaft of the oil-submersible motor is a hollow shaft, the outer circle side surface of the middle part of the output shaft is provided with an external thread, the outer sleeve of the output shaft is provided with a movable cylinder, the inner circle side surface of the middle part of the movable cylinder is provided with an internal thread, and the internal thread is matched with the external thread for use; a fixed valve is arranged in the inner cavity of the output shaft, a moving valve is arranged in the inner cavity of the moving cylinder, and the moving valve is positioned above the fixed valve; an outer cylinder is sleeved on the outer circle side face of the movable cylinder, the top of the outer cylinder is communicated with an oil pipe, the outer cylinder is fixedly connected with the oil pipe, and a check valve is arranged at one end, close to the outer cylinder, of the oil pipe; one side of the movable cylinder is provided with a guide device. The utility model can avoid the arrangement of the structures such as the speed reducing motor, the crank connecting rod and the like, and can reduce the space occupation of the oil pumping unit on the well; the problems that the abrasion of the sucker rod and the oil pumping pipe is serious and the sucker rod is easy to break when a crank connecting rod mechanism is adopted can be avoided.
Description
Technical Field
The utility model belongs to the technical field of oil field exploitation equipment, concretely relates to oily motor drive's pumping unit dives.
Background
In the exploitation of the oil field, the oil liquid lifting equipment commonly used is a pumping unit, the pumping unit comprises an oil pumping pipe, the oil pumping pipe is arranged in the oil well, a pumping rod is arranged in the oil pumping pipe, the lower part of the pumping rod is connected with a plunger pump, the upper part of the pumping rod is connected with a crank-link mechanism, a speed reducer and a motor are arranged on the position above the well, and the crank-link mechanism converts the rotation of the speed reducer into the reciprocating linear motion of the pumping rod along the oil pumping pipe.
The inventor thinks that: the existing oil pumping unit has the following defects:
1) the pumping unit has larger volume and larger occupied area, and particularly, the position for installing the motor and the speed reducing device needs to be specially reserved on the part above the well, so that the space around the well is occupied;
2) the linear motion of utilizing crank link mechanism drive sucker rod can't guarantee sucker rod and the axis coincidence of oil pumping pipe, in the repetitious usage of beam-pumping unit, can take place wearing and tearing between sucker rod and the oil pumping pipe, causes sucker rod fracture even.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art, providing an oil pumping device driven by an oil submersible motor, avoiding the arrangement of a speed reducer, a motor, a crank connecting rod and other structures, and reducing the space occupation of the oil pumping unit on the well; the problems that the abrasion of the sucker rod and the oil pumping pipe is serious and the sucker rod is easy to break when a crank connecting rod mechanism is adopted can be avoided.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an oil motor driven pumping unit dives, is including diving oily motor, the output shaft of diving oily motor is the hollow shaft, the excircle side at output shaft middle part is equipped with the external screw thread, the outside cover of output shaft is equipped with and moves a section of thick bamboo, it is equipped with the internal thread to move the interior circle side at a section of thick bamboo middle part, the internal thread uses with the external screw thread cooperation.
Adopt latent oily motor as drive arrangement, can make drive arrangement also can use in fluid in the pit, the output shaft of hollow shaft structure can regard as a part of plunger pump simultaneously, avoids setting up the cost waste that special plunger pump caused.
A fixed valve is arranged in the inner cavity of the output shaft, a moving valve is arranged in the inner cavity of the moving cylinder, and the moving valve is positioned above the fixed valve;
the outer cylinder is sleeved on the outer circle side face of the moving cylinder, the top of the outer cylinder is communicated with an oil pipe, the outer cylinder is fixedly connected with the oil pipe, and a check valve is arranged at one end, close to the outer cylinder, of the oil pipe.
The output shaft of the submersible motor is used as a part of the plunger pump, and the submersible motor can play a role of the plunger pump by combining the matching use of the movable cylinder, the outer cylinder, the fixed valve and the moving valve.
A guide device is arranged on one side of the movable cylinder, and the guide device can limit the rotation of the movable cylinder along the axis of the movable cylinder and provide movement guide of the movable cylinder in the vertical direction.
Adopt guider to realize the direction of moving a section of thick bamboo, can utilize the linear motion who moves a section of thick bamboo along self axis to realize opening and closing of oil feed passageway and the compression and the expansion of transportation space, the suction and the discharge of circulating realization fluid realize following the mesh of pumping to the well in the pit.
The lower part of the output shaft is provided with an oil inlet which penetrates through the side wall of the output shaft.
The utility model has the advantages that:
the utility model discloses an oil-submersible motor can utilize screw-thread fit and guider to change rotary motion into the reciprocating linear motion who moves a section of thick bamboo, and the reciprocating linear motion who utilizes to move a section of thick bamboo drives the compression and the expansion of transporting the space, and when transporting the space expansion, the oil feed passageway can be opened so that outside fluid gets into the space of transporting from the output shaft, and when transporting the space compression, fluid can discharge and get into oil pipe.
The utility model discloses leave out the use of sucker rod, when not having the sucker rod oil pumping of adoption, sucker rod and oil pumping pipe wearing and tearing are serious, cracked condition even.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a front view of the overall structure in the embodiment of the present invention.
In the figure: 1. a check valve; 2. an oil pipe; 3. a swimming valve; 4. an anti-rotation slot; 5. fixing a valve; 6. An internal thread; 7. an outer cylinder; 8. a movable cylinder; 9. an oil inlet channel; 10. an output shaft; 11. a submersible motor; 12. an external thread; 13. and an oil inlet.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be pointed out that, the valve is the equivalent reference of the valve in the oil exploration field, and the fixed position of the fixed valve is the fixed one-way valve; the floating valve refers to a one-way valve with a position capable of being changed; check valve valves are referred to as check valves. The above terms are terms commonly used in the oil drilling industry.
In order to solve the problems mentioned in the background technology, the utility model provides an oil pumping device driven by an oil-submersible motor, which comprises the oil-submersible motor, wherein the output shaft of the oil-submersible motor is a hollow shaft, the outer circle side surface of the middle part of the output shaft is provided with an external thread, the outer part of the output shaft is sleeved with a movable cylinder, the inner circle side surface of the middle part of the movable cylinder is provided with an internal thread, and the internal thread is matched with the external thread for use; a fixed valve is arranged in the inner cavity of the output shaft, a moving valve is arranged in the inner cavity of the moving cylinder, and the moving valve is positioned above the fixed valve; an outer cylinder is sleeved on the outer circle side face of the movable cylinder, the top of the outer cylinder is communicated with an oil pipe, the outer cylinder is fixedly connected with the oil pipe, and a check valve is arranged at one end, close to the outer cylinder, of the oil pipe;
a guide device is arranged on one side of the movable cylinder, and can limit the rotation of the movable cylinder along the axis of the movable cylinder and provide the guide for the movement of the movable cylinder in the vertical direction; the lower part of the output shaft is provided with an oil inlet which penetrates through the side wall of the output shaft.
Further, guider is including setting up the anti-rotating groove in a rotating cylinder, the extending direction of anti-rotating groove is parallel with the axis of a rotating cylinder, the fixed slider that is equipped with of inside wall of urceolus, the slider set up in the anti-rotating groove.
Further, the length of the internal thread and the external thread along the axial direction of the movable cylinder is equal, and the length of the external thread is greater than the length of the bottom end of the movable cylinder from the oil inlet.
Further, the distance from the top end of the movable cylinder to the valve of the check valve is larger than the length of the internal thread.
Further, the shell of the submersible motor is fixedly connected with the outer cylinder.
Further, a transfer space is formed between the fixed valve and the traveling valve, the fixed valve limits oil to flow into the transfer space from a cavity of the output shaft, and the traveling valve limits the oil to flow into the oil pipe from the transfer space.
Further, an oil passage is formed between the inner wall of the outer cylinder and the outer wall of the output shaft, and the movable cylinder can move up and down under the driving of the output shaft to realize the opening and closing of the oil passage.
Further, guider is including setting up in the screw rod that moves the bobbin end, submersible motor's casing one side is equipped with the nut, the screw rod passes through screw-thread fit with the nut.
The utility model discloses an among the typical embodiment, as shown in fig. 1, this implementation provides an oily motor 11 driven plunger pump of diving, including oily motor 11 of diving, the output shaft 10 of oily motor 11 of diving is the hollow shaft, the excircle side at output shaft 10 middle part is equipped with external screw thread 12, the outside cover of output shaft 10 is equipped with moves a section of thick bamboo 8, it is equipped with internal thread 6 to move the interior round side at 8 middle parts of a section of thick bamboo, internal thread 6 uses with external screw thread 12 cooperation.
Specifically, the submersible motor can be used underwater and in an oil environment, and the situation that the use of the submersible motor is influenced when oil enters the submersible motor cannot occur.
When the motor sets up directly over oil pipe, can influence oil pipe oil extraction, when oil pipe set up in one side on the well and utilize crank link mechanism, the axis misalignment condition of sucker rod and oil pipe can appear. And the utility model discloses to dive the setting of oil motor in the pit, can avoid above-mentioned two kinds of circumstances.
A fixed valve 5 is arranged in the inner cavity of the output shaft 10, a moving valve 3 is arranged in the inner cavity of the moving cylinder 8, and the moving valve 3 is positioned above the fixed valve 5;
the outer cylinder 7 is sleeved on the outer circle side face of the movable cylinder 8, the top of the outer cylinder 7 is communicated with the oil pipe 2, the outer cylinder 7 is fixedly connected with the oil pipe 2, and a check valve 1 is arranged at one end, close to the outer cylinder 7, of the oil pipe 2.
Specifically, the top end of the outer cylinder extends into the inner cavity of the lower end of the oil pipe, and the outer cylinder is connected with the oil pipe through threads.
A guide device is arranged on one side of the movable cylinder 8, and can limit the rotation of the movable cylinder 8 along the axis of the movable cylinder 8 and provide the guide for the movement of the movable cylinder 8 in the vertical direction;
an oil inlet 17 is formed in the lower portion of the output shaft 10, and the oil inlet 17 penetrates through the side wall of the output shaft 10.
The guiding device comprises an anti-rotation groove 4 arranged in a rotating cylinder 8, the extending direction of the anti-rotation groove 4 is parallel to the axis of the rotating cylinder 8, a sliding block is fixedly arranged on the inner side wall of the outer cylinder 7, and the sliding block is arranged in the anti-rotation groove 4.
Specifically, the anti-rotation groove is a groove body for preventing the rotation of the movable cylinder, can adopt a common square sliding groove, can also adopt other shapes, and can be set by a person skilled in the art.
The length of the internal thread 6 and the length of the external thread 12 along the axial direction of the movable cylinder 8 are equal, and the length of the external thread 12 is greater than the length of the bottom end of the movable cylinder 8 from the oil inlet 17.
The distance from the top end of the movable cylinder 8 to the check valve 1 is larger than the length of the internal thread 6.
The shell of the submersible motor 11 is fixedly connected with the outer cylinder 7.
A transfer space is formed between the fixed valve 5 and the traveling valve 3, the fixed valve 5 limits the oil to flow into the transfer space from the cavity of the output shaft 10, and the traveling valve 3 limits the oil to flow into the oil pipe 2 from the transfer space.
Specifically, the fixed valve and the traveling valve are both check valves which can be opened under a certain pressure, the fixed valve refers to a valve which is fixed relative to the oil pipe, and the traveling valve refers to a check valve which can move up and down along with the spool. Check valve valves refer to ordinary check valves.
An oil passage is formed between the inner wall of the outer cylinder 7 and the outer wall of the output shaft 10, and the movable cylinder 8 can move up and down under the driving of the output shaft 10 to realize the opening and closing of the oil passage.
The oil passage is formed when the moving cylinder moves upwards, and external oil in the well can enter an oil inlet of the output shaft from the oil passage; the oil passage is closed when the movable cylinder moves downwards, and underground external oil is isolated from the inner cavity of the output shaft.
The guiding device comprises a screw rod arranged at the bottom end of the movable cylinder 8, a nut is arranged on one side of a shell of the submersible motor 11, and the screw rod is in threaded fit with the nut.
The working principle is as follows: the submersible motor 11 corotates, the motor output shaft 10 external thread 12 corotates, the output shaft 10 external thread 12 is meshed with the movable barrel 8 internal thread 6, the movable barrel 8 is driven by the movable barrel 8 internal thread 6 to move downwards under the constraint of the anti-rotation groove 4, liquid between the fixed valve 5 and the moving valve 3 is compressed, the fixed valve 5 is closed, the moving valve 3 is opened, the compressed liquid passes through the moving valve 3 and is discharged into the oil pipe 2, and the process of lifting the liquid is realized through the check valve 1.
The submersible motor 11 is reversed, the motor output shaft 10 external thread 12 on the outer side of the motor output shaft 10 is reversed, the output shaft 10 external thread 12 is meshed with the movable cylinder 8 internal thread 6, the movable cylinder 8 internal thread 6 drives the movable cylinder 8 to move upwards, the space between the fixed valve 5 and the moving valve 3 is enlarged, the fixed valve 5 is opened, the moving valve 3 is closed, liquid flows through the oil inlet channel 9 and flows into the motor hollow output shaft 10, and the liquid enters the space between the fixed valve 5 and the moving valve 3 through the fixed valve 5 at the top end of the motor hollow output shaft 10, so that the process of liquid entering the pump is realized.
The submersible motor 11 makes continuous positive and negative rotation movement, and the liquid lifting process is completed.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (8)
1. An oil pumping device driven by an oil-submersible motor is characterized by comprising the oil-submersible motor, wherein an output shaft of the oil-submersible motor is a hollow shaft, an external thread is arranged on the outer circle side surface of the middle part of the output shaft, a movable cylinder is sleeved outside the output shaft, an internal thread is arranged on the inner circle side surface of the middle part of the movable cylinder, and the internal thread and the external thread are matched for use;
a fixed valve is arranged in the inner cavity of the output shaft, a moving valve is arranged in the inner cavity of the moving cylinder, and the moving valve is positioned above the fixed valve;
an outer cylinder is sleeved on the outer circle side face of the movable cylinder, the top of the outer cylinder is communicated with an oil pipe, the outer cylinder is fixedly connected with the oil pipe, and a check valve is arranged at one end, close to the outer cylinder, of the oil pipe;
a guide device is arranged on one side of the movable cylinder, and can limit the rotation of the movable cylinder along the axis of the movable cylinder and provide the guide for the movement of the movable cylinder in the vertical direction;
the lower part of the output shaft is provided with an oil inlet which penetrates through the side wall of the output shaft.
2. The submersible motor driven oil well pumping unit of claim 1, wherein the guiding means comprises an anti-rotation groove provided in the rotating cylinder, the extending direction of the anti-rotation groove is parallel to the axis of the rotating cylinder, and a sliding block is fixedly provided on the inner side wall of the outer cylinder and is provided in the anti-rotation groove.
3. The oil pumping device driven by the submersible motor according to claim 1, wherein the internal thread and the external thread have the same length along the axis of the movable cylinder, and the length of the external thread is greater than the length from the bottom end of the movable cylinder to the oil inlet.
4. The submersible motor driven oil well pumping apparatus of claim 3 where the distance from the top of the moving barrel to the check valve is greater than the length of the internal thread.
5. The submersible motor driven oil well pumping apparatus of claim 1 where the submersible motor housing is fixedly attached to the outer barrel.
6. The submersible motor driven oil well pumping apparatus of claim 1 wherein a transfer space is formed between the fixed valve and the traveling valve, the fixed valve defining the flow of oil from the cavity of the output shaft into the transfer space, and the traveling valve defining the flow of oil from the transfer space into the oil pipe.
7. The oil pumping device driven by the submersible motor according to claim 1, wherein an oil passage is formed between the inner wall of the outer cylinder and the outer wall of the output shaft, and the movable cylinder can move up and down under the driving of the output shaft to realize the opening and closing of the oil passage.
8. The submersible motor driven oil well pumping device of claim 7 wherein the guiding means comprises a threaded rod disposed at the bottom end of the movable barrel, a nut is disposed on one side of the submersible motor housing, and the threaded rod and the nut are in threaded engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904257.8U CN210087588U (en) | 2019-06-14 | 2019-06-14 | Oil pumping device driven by submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904257.8U CN210087588U (en) | 2019-06-14 | 2019-06-14 | Oil pumping device driven by submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087588U true CN210087588U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920904257.8U Expired - Fee Related CN210087588U (en) | 2019-06-14 | 2019-06-14 | Oil pumping device driven by submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107488A (en) * | 2019-06-14 | 2019-08-09 | 中国石化集团胜利石油管理局有限公司电力分公司 | A kind of oil rig of submersible motor driving |
-
2019
- 2019-06-14 CN CN201920904257.8U patent/CN210087588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107488A (en) * | 2019-06-14 | 2019-08-09 | 中国石化集团胜利石油管理局有限公司电力分公司 | A kind of oil rig of submersible motor driving |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |