CN215805115U - Oil-well pump sealing device for petroleum - Google Patents
Oil-well pump sealing device for petroleum Download PDFInfo
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- CN215805115U CN215805115U CN202122291531.9U CN202122291531U CN215805115U CN 215805115 U CN215805115 U CN 215805115U CN 202122291531 U CN202122291531 U CN 202122291531U CN 215805115 U CN215805115 U CN 215805115U
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- oil
- well pump
- connecting rod
- periphery
- piston
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- 239000003129 oil well Substances 0.000 title claims abstract description 70
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 239000003208 petroleum Substances 0.000 title abstract description 14
- 238000004080 punching Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 32
- 239000010779 crude oil Substances 0.000 abstract description 23
- 238000001556 precipitation Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an oil well pump sealing device for petroleum, which comprises an outer sleeve and an oil well pump connecting rod, wherein the oil well pump connecting rod is inserted in an inner cavity of the outer sleeve, the top of the oil well pump connecting rod is connected with an external oil well pump body, a sealing mechanism is arranged in the inner periphery of the bottom of the oil well pump connecting rod, an oil outlet pipe is arranged on one side of the outer periphery of the outer sleeve, an exhaust mechanism is arranged on one side, away from the oil outlet pipe, of the outer periphery of the outer sleeve, the sealing mechanism comprises a fixed piston fixed at the bottom of the oil well pump connecting rod and a movable piston clamped in the inner periphery of the outer sleeve, a sealing groove is formed in the outer periphery of the fixed piston, a first O-shaped sealing ring is sleeved in the inner periphery of the sealing groove, and a connecting hole is formed in the inner periphery of the movable piston. This oil-well pump sealing device for oil can realize when can being equipped with certain precipitation space to crude oil extraction, accomplishes the separation of crude oil and air, improves crude oil transport efficiency.
Description
Technical Field
The utility model belongs to the technical field of oil pump sealing, and particularly relates to an oil pump sealing device for petroleum.
Background
The oil well pump belongs to the modern word, and refers to the underground device which is driven by the oil pumping machine to lift the crude oil in the well to the ground, and the oil well pump is the common underground device which is driven by the oil pumping machine to pump the crude oil in the 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. The oil extraction of piston, when preliminary extraction, can mix certain air in the oil to the oil takes the air to get into defeated oil pipe in, the influence is to the delivery volume and the transport efficiency of oil.
Therefore, in order to meet the current situation, the oil pump sealing device for petroleum needs to be designed and produced urgently so as to meet the actual use requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sealing device of an oil well pump for petroleum, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an oil well pump sealing device for petroleum comprises an outer sleeve and an oil well pump connecting rod, wherein the oil well pump connecting rod is inserted in an inner cavity of the outer sleeve, the top of the oil well pump connecting rod is connected with an external oil well pump body, a sealing mechanism is arranged in the inner periphery of the bottom of the oil well pump connecting rod, an oil outlet pipe is arranged on one side of the outer periphery of the outer sleeve, and an exhaust mechanism is arranged on one side of the outer periphery of the outer sleeve, which is far away from the oil outlet pipe;
the sealing mechanism comprises a fixed piston fixed at the bottom of the oil well pump connecting rod and a movable piston clamped in the inner periphery of the outer sleeve, a sealing groove is formed in the outer periphery of the fixed piston, a first O-shaped sealing ring is sleeved in the inner periphery of the sealing groove, a connecting hole is formed in the inner periphery of the movable piston, a guide frame is welded on the inner periphery of the connecting hole, the oil well pump connecting rod is inserted into the inner ring of the guide frame, two symmetrically-distributed grooves are formed in the outer periphery of the movable piston, a second O-shaped sealing ring is sleeved in the inner cavity of each groove, two exhaust holes are formed in the outer periphery of the oil well pump connecting rod, a communicating pipeline is formed in the inner cavity of the oil well pump connecting rod, and the two exhaust holes are communicated with the communicating pipeline;
the exhaust mechanism comprises an exhaust pipe connected to one side of the outer sleeve far away from the oil outlet pipe and a manual control valve arranged on the exhaust pipe, and a one-way valve is arranged in an inner cavity of the exhaust pipe.
Preferably, the top and the bottom of fixed piston are integrated into a whole and are provided with quadrangular frustum pyramid-shaped bumps, the top of the bump positioned at the top of the fixed piston is integrally formed into a connecting table in a punching mode, and the connecting table is welded at the bottom of the periphery of the connecting rod of the oil well pump.
Preferably, the periphery of the oil well pump connecting rod is welded with a limiting table, and the diameter of the limiting table is larger than that of the connecting hole of the movable piston.
Preferably, the inner periphery of the guide frame is in interference fit with the outer periphery of the oil well pump connecting rod, and the two guide frames are located between the two exhaust holes.
Preferably, the bottom of the movable piston is integrally formed with a circular truncated cone-shaped piston head, the bottom of the piston head is provided with a connecting groove matched with the connecting table of the fixed piston, and the connecting table is clamped in the connecting groove.
The utility model has the technical effects and advantages that: according to the oil-well pump sealing device for petroleum, two exhaust holes matched with the movable piston are formed in the oil-well pump connecting rod, when the oil-well pump connecting rod is pressed down, crude oil is firstly pressed down on the fixed piston, precipitation is carried out between the fixed piston and the movable piston, a certain time is provided for separating petroleum from air, and the air content during transportation is reduced; when the oil well pump connecting rod moves upwards, the oil well pump connecting rod is matched with the fixed piston to drive crude oil to ascend, so that petroleum and air after precipitation and separation are lifted, the petroleum and the air are transported in sequence, the air is light and is preferentially discharged through the exhaust pipe, the crude oil with high weight is discharged from the oil outlet pipe, and the influence of the air on petroleum transportation is reduced; through being equipped with first O shape sealing washer and fixed piston, guarantee the oil pumping leakproofness of basis to ensure that fixed piston can normally carry out gas-liquid precipitation separation, this oil-well pump sealing device for oil can be equipped with certain precipitation space when can realize the crude oil extraction, accomplishes the separation of crude oil and air, improves crude oil conveying efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of an outer sleeve of the present invention;
fig. 3 is a cross-sectional view of the movable piston of the present invention.
In the figure: the oil well pump comprises an outer sleeve 1, an oil well pump connecting rod 2, a sealing mechanism 3, an exhaust mechanism 4, a fixed piston 5, a first O-shaped sealing ring 6, a movable piston 7, a second O-shaped sealing ring 8, a guide frame 9, an exhaust hole 10, an oil outlet pipe 11, an exhaust pipe 12, a manual control valve 13 and a one-way valve 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless otherwise indicated, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the utility model is directed.
The utility model provides an oil well pump sealing device for petroleum, which comprises an outer sleeve 1 and an oil well pump connecting rod 2, wherein the oil well pump connecting rod 2 is inserted in the inner cavity of the outer sleeve 1, the top of the oil well pump connecting rod 2 is connected with an external oil well pump body (not shown in the figure), a sealing mechanism 3 is installed in the inner periphery of the bottom of the oil well pump connecting rod 2, an oil outlet pipe 11 is installed on one side of the outer periphery of the outer sleeve 1, and an exhaust mechanism 4 is installed on one side of the outer periphery of the outer sleeve 1, which is far away from the oil outlet pipe 11;
the sealing mechanism 3 comprises a fixed piston 5 fixed at the bottom of the oil well pump connecting rod 2 and a movable piston 7 clamped in the inner periphery of the outer sleeve 1, the fixed piston 5 is driven by the oil well pump connecting rod 2 to perform drawing motion, so that normal pumping operation of crude oil is realized, and the most basic sealing oil pumping function is ensured to be normal in use, a sealing groove is formed in the outer periphery of the fixed piston 5, a first O-shaped sealing ring 6 is sleeved in the inner periphery of the sealing groove, a connecting hole is formed in the inner periphery of the movable piston 7, a guide frame 9 is welded in the inner periphery of the connecting hole, the oil well pump connecting rod 2 is inserted in the inner ring of the guide frame 9, two symmetrically-distributed grooves are formed in the outer periphery of the movable piston 7, a second O-shaped sealing ring 8 is sleeved in the inner cavity of the groove, two exhaust holes 10 are formed in the outer periphery of the oil well pump connecting rod 2, and a communicating pipeline is formed in the inner cavity of the oil well pump connecting rod 2, the two exhaust holes 10 are communicated with the communication pipeline, in the motion process of the piston, crude oil is pumped out through the fixed piston 5, when the oil well pump connecting rod 2 is pressed down, the crude oil enters the upper side through the two exhaust holes 10, the space between the fixed piston 5 and the movable piston 7 is expanded, and the exhaust holes 10 are communicated with the space on the upper side of the fixed piston 5, so that air is exhausted;
the exhaust mechanism 4 comprises an exhaust pipe 12 connected to one side of the outer sleeve 1 far away from the oil outlet pipe 11 and a manual control valve 13 installed on the exhaust pipe 12, a one-way valve 14 is installed in an inner cavity of the exhaust pipe 12, the exhaust pipe 12 is designed to be raised according to actual oil pumping quantity, gas and liquid can be separately transported, gas is discharged, and the crude oil can be manually closed to ensure crude oil transportation when oil leakage occurs.
Concretely, the top and the bottom homogeneous body shaping of fixed piston 5 have the lug of quadrangular frustum pyramid shape, and the integrative stamping forming in top that is located the lug at fixed piston 5 top has the connection platform, and connects the platform welding in the periphery bottom of oil-well pump connecting rod 2, improves the connection effect and improves the volume of producing oil when pumping.
Specifically, the periphery of the oil well pump connecting rod 2 is welded with a limiting table, and the diameter of the limiting table is larger than that of a connecting hole of the movable piston 7, so that the movable piston 7 can be driven.
Specifically, the inner periphery of leading truck 9 and the periphery interference fit of oil-well pump connecting rod 2, and two leading trucks 9 are located between two exhaust holes 10, guarantee the sealed between leading truck 9 and the oil-well pump connecting rod 2 to make crude oil can be discharged or discharge from activity piston 7 side from exhaust hole 10.
Specifically, the bottom of the movable piston 7 is integrally formed with a circular truncated cone-shaped piston head, the bottom of the piston head is provided with a connecting groove matched with the connecting table of the fixed piston 5, and the connecting table is clamped in the connecting groove.
The working principle of the sealing device of the oil-well pump for petroleum is that when the sealing device is used, an oil-well pump connecting rod 2 is driven to work through an external oil-well pump body, a fixed piston 5 is matched with a first O-shaped sealing ring 6 for sealing and fixing, a movable piston 7 is matched with a second O-shaped sealing ring 8 for sealing in the process of piston movement, so that crude oil is extracted, the fixed piston 5 is driven to move through the oil-well pump connecting rod 2 and is driven to pump out the crude oil, when the oil-well pump connecting rod 2 is pressed downwards, the crude oil is preferentially deposited between the fixed piston 5 and the movable piston 7 to realize preliminary gas-liquid separation, the space between the fixed piston 5 and the movable piston 7 is expanded along with the oil-well pump connecting rod 2, an exhaust hole 10 is communicated with the space above the fixed piston 5 to realize preferential exhaust of air, after the oil-well pump connecting rod 2 is continuously pressed to drive the movable piston 7 to move, the movable piston 7 is fixed relative to the fixed piston 5, and the whole body moves in a complete piston mode, so that crude oil is squeezed and pumped out, when the oil well pump connecting rod 2 is lifted up, the fixed piston 5 drives the crude oil to rise, oil is discharged from the exhaust hole 10, after the movable piston 7 is driven to move, the whole crude oil is driven to discharge oil through the oil discharge pipe 11, oil pumping operation is completed, and gas is discharged through the exhaust pipe 12.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (5)
1. The utility model provides an oil-well pump sealing device for oil, includes outer sleeve (1) and oil-well pump connecting rod (2), its characterized in that: an oil well pump connecting rod (2) is inserted into an inner cavity of the outer sleeve (1), the top of the oil well pump connecting rod (2) is connected with an external oil well pump body, a sealing mechanism (3) is installed in the inner periphery of the bottom of the oil well pump connecting rod (2), an oil outlet pipe (11) is installed on one side of the outer periphery of the outer sleeve (1), and an exhaust mechanism (4) is installed on one side, far away from the oil outlet pipe (11), of the outer periphery of the outer sleeve (1);
the sealing mechanism (3) comprises a fixed piston (5) fixed at the bottom of the oil pump connecting rod (2) and a movable piston (7) clamped in the inner circumference of the outer sleeve (1), a sealing groove is arranged on the outer circumference of the fixed piston (5), a first O-shaped sealing ring (6) is sleeved in the inner periphery of the sealing groove, a connecting hole is formed in the inner periphery of the movable piston (7), a guide frame (9) is welded on the inner periphery of the connecting hole, the oil pump connecting rod (2) is inserted in the inner ring of the guide frame (9), two symmetrically distributed grooves are arranged on the periphery of the movable piston (7), a second O-shaped sealing ring (8) is sleeved in the grooved inner cavity, two exhaust holes (10) are arranged on the periphery of the oil-well pump connecting rod (2), a communicating pipeline is arranged in the inner cavity of the oil well pump connecting rod (2), and the two exhaust holes (10) are communicated with the communicating pipeline;
the exhaust mechanism (4) comprises an exhaust pipe (12) connected to one side, far away from the oil outlet pipe (11), of the outer sleeve (1) and a manual control valve (13) installed on the exhaust pipe (12), and a one-way valve (14) is installed in an inner cavity of the exhaust pipe (12).
2. The sealing device of claim 1, wherein: the top and the bottom of fixed piston (5) are integrated into a whole and are provided with quadrangular frustum pyramid-shaped bumps, the top of the bump positioned at the top of the fixed piston (5) is integrally formed into a punching shape to be provided with a connecting table, and the connecting table is welded at the bottom of the periphery of an oil pump connecting rod (2).
3. The sealing device of claim 1, wherein: the periphery of the oil well pump connecting rod (2) is welded with a limiting table, and the diameter of the limiting table is larger than that of the connecting hole of the movable piston (7).
4. The sealing device of claim 1, wherein: the inner periphery of the guide frames (9) is in interference fit with the outer periphery of the oil well pump connecting rod (2), and the two guide frames (9) are located between the two exhaust holes (10).
5. The sealing device of claim 1, wherein: the bottom of the movable piston (7) is integrally formed with a circular truncated cone-shaped piston head, the bottom of the piston head is provided with a connecting groove matched with the connecting table of the fixed piston (5), and the connecting table is clamped in the connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122291531.9U CN215805115U (en) | 2021-09-22 | 2021-09-22 | Oil-well pump sealing device for petroleum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122291531.9U CN215805115U (en) | 2021-09-22 | 2021-09-22 | Oil-well pump sealing device for petroleum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805115U true CN215805115U (en) | 2022-02-11 |
Family
ID=80165026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122291531.9U Active CN215805115U (en) | 2021-09-22 | 2021-09-22 | Oil-well pump sealing device for petroleum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805115U (en) |
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2021
- 2021-09-22 CN CN202122291531.9U patent/CN215805115U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240226 Address after: 529000, Room 205, No. 102, West Lianghua New Village, Pengjiang District, Jiangmen City, Guangdong Province, self compiled as one of them Patentee after: Jiangmen Wanyu Innovation Technology Development Co.,Ltd. Country or region after: China Address before: 510000 room 704, No. 383, second riverside street, Baiyun District, Guangzhou, Guangdong Patentee before: Chen Guoyong Country or region before: China |