CN209621590U - Sealing device for oil well pump - Google Patents
Sealing device for oil well pump Download PDFInfo
- Publication number
- CN209621590U CN209621590U CN201822167876.1U CN201822167876U CN209621590U CN 209621590 U CN209621590 U CN 209621590U CN 201822167876 U CN201822167876 U CN 201822167876U CN 209621590 U CN209621590 U CN 209621590U
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- Prior art keywords
- connecting rod
- hole
- ontology
- seal
- sealing ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 79
- 239000003129 oil well Substances 0.000 title claims abstract description 31
- 238000005086 pumping Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 abstract description 36
- 239000010779 crude oil Substances 0.000 abstract description 8
- 239000011148 porous material Substances 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses an oil-well pump sealing device belongs to oil development machinery technical field. The oil well pump sealing device comprises a connector, a connecting rod and a first sealing ring. The first end of the connecting rod of the device passes through the first through hole and is connected with the sucker rod of oil-well pump, the piston of oil-well pump is connected to the second end of connecting rod, after lifting the sucker rod, the connecting rod also rises along with the sucker rod, at this moment, first sealing washer is located between the pore wall of this connecting rod and first through hole, thereby realize the sealed in the clearance between the pore wall of first through hole and the connecting rod, and like this, the pressure differential at the both ends of piston increases, thereby lead to the crude oil volume of piston extraction also to increase thereupon, and then make the increase of oil-well pump efficiency.
Description
Technical field
The utility model relates to oil exploitation field of mechanical technique, in particular to a kind of oil pumping pump sealing apparatus.
Background technique
In general, in order to avoid rubbing between the piston and pump barrel of oil well pump, meeting between the piston and pump barrel of oil well pump
There are certain gaps.However, there are the leakproofness reductions that gap will lead to pump barrel between piston and pump barrel, in this way, in piston
Up stroke and down stroke in, the pressure difference at the both ends of piston will reduce, the crude oil amount extracted so as to cause oil pump piston also with
Reduction, in turn result in oil pumping the efficiency of pump reduce.Based on this, it is urgent to provide a kind of oil pumping pump sealing apparatus, to guarantee in piston
There are in the case where gap between pump barrel, pump barrel is sealed, the efficiency of oil well pump is improved with this.
Utility model content
The utility model embodiment provides a kind of oil pumping pump sealing apparatus, can be used for solving pump barrel in the related technology
The poor problem of leakproofness.The technical solution is as follows:
A kind of oil pumping pump sealing apparatus, the oil pumping pump sealing apparatus include connector, connecting rod and the first sealing ring；
The first end connected pipes of the connector, the pump barrel of the second end connection oil well pump of the connector, the company
The center of junctor is provided with first through hole；
The first end of the connecting rod passes through the first through hole and connect with the sucker rod of the oil well pump, the connecting rod
Second end connect the piston of the oil well pump；
It is upper mention the sucker rod after, first sealing ring be located at the first through hole hole wall and the connecting rod
Between, the gap between hole wall and connecting rod to seal the first through hole.
Optionally, described device further includes the second sealing ring, it is upper mention the sucker rod after, second sealing ring position
Between the hole wall and the connecting rod of the first through hole, to seal between the hole wall of the first through hole and the connecting rod
Gap.
Optionally, the connector includes ontology and seal；
The ontology is cylindrical tube, and the inner cavity of the ontology is in truncated cone-shaped, and the internal diameter of the first end of the ontology
Greater than the internal diameter of the second end of the ontology, the first end of the ontology connects the oil pipe, the second end connection of the ontology
The pump barrel；
The center of the seal is provided with the first through hole, and the seal is located in the ontology, the seal
For truncated cone-shaped, the outer diameter of the first end of the seal is greater than the outer diameter of the second end of the seal, and the seal
The outer diameter of first end is less than the internal diameter of the first end of the ontology, and the outer diameter of the second end of the seal is greater than the ontology
The internal diameter of second end, the height of the seal are less than the height of the ontology.
Optionally, the first end of the ontology is equipped with internal screw thread, and the second end of the ontology is equipped with external screw thread；
One end of the oil pipe is equipped with external screw thread, and the internal screw thread of the first end of the ontology is outer with one end of the oil pipe
It is threadedly engaged connection；
One end of the pump barrel is provided with internal screw thread, in one end of the external screw thread of the second end of the ontology and the pump barrel
It is threadedly engaged connection.
Optionally, the connecting rod is isodiametric stock；
It is described first sealing snare in the connecting rod, it is upper mention the sucker rod after, first sealing ring position
Between the hole wall and the connecting rod of the first through hole, after transferring the sucker rod, first sealing ring is located at
The lower section of the first through hole, and there are gaps between the upper surface of the first sealing ring and the lower end of the first through hole.
Optionally, the diameter of the first end of the connecting rod be less than the connecting rod second end diameter, described first
Sealing ring is fixed in the first through hole；
It is upper mention the sucker rod after, first sealing ring be located at the first through hole hole wall and the connecting rod
Second end between, after transferring the sucker rod, first sealing ring be located at the hole wall of the first through hole with it is described
Between the first end of connecting rod.
Technical solution bring beneficial effect provided by the embodiment of the utility model includes at least:
In the utility model embodiment, the first end of the connecting rod of the device passes through the oil pumping of first through hole and oil well pump
Bar connection, connecting rod second end connection oil well pump piston, it is upper mention sucker rod after, connecting rod is also on sucker rod
Rise, at this point, the first sealing ring is located between the connecting rod and the hole wall of first through hole, thus realize to the hole wall of first through hole and
The sealing in the gap between connecting rod, in this way, the pressure difference at the both ends of piston increases, the crude oil amount extracted so as to cause piston also with
Increase, and then make pump the efficiency of pump increase.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of half-section diagram of pump sealing apparatus of pumping provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another oil pumping pump sealing apparatus provided by the embodiment of the utility model.
Appended drawing reference:
1: connector；2: connecting rod；3: the first sealing rings；4: the second sealing rings；
11: ontology；12: seal.
Specific embodiment
To make the purpose of this utility model, technical solution and advantage are clearer, practical new to this below in conjunction with attached drawing
Type embodiment is described in further detail.
Fig. 1 is a kind of structural schematic diagram of pump sealing apparatus of pumping provided by the embodiment of the utility model.As shown in Figure 1,
The oil pumping pump sealing apparatus includes connector 1, connecting rod 2 and the first sealing ring 3；The first end connected pipes of connector 1, connection
The pump barrel of the second end connection oil well pump of body 1, the center of connector 1 is provided with first through hole；The first end of connecting rod 2 passes through first
The connection of the sucker rod of through-hole and oil well pump, the piston of the second end connection oil well pump of connecting rod 2；It is upper mention the sucker rod it
Afterwards, the first sealing ring 3 is located between the hole wall and connecting rod 2 of first through hole, with seal first through hole hole wall and connecting rod 2 it
Between gap.
Wherein, connector 1 can be solid cylinder, and the center of the solid cylinder is provided with first through hole, the of connector 1
One end can directly be connected with oil pipe, can also be connected indirectly with oil pipe, and the second end of connector 1 can be direct and oil well pump
Pump barrel connection, can also connect with the pump barrel of oil well pump indirectly.
Wherein, when the first end of connector 1 is directly connected with oil pipe, the second end of connector 1 is direct and the pump of oil well pump
When cylinder connection, in one possible implementation, the first end of connector 1 can be welded directly with oil pipe, and the of connector 1
Two ends can directly be welded with pump barrel.Optionally, connector 1 can also be by connecting between screw thread and oil pipe and pump barrel.Example
Property, the first end of connector 1 can be equipped with external screw thread, and one end of oil pipe can be equipped with internal screw thread, the first end of connector 1
External screw thread is connected with the screw-internal thread fit of one end of oil pipe；The second end of connector 1 can be equipped with external screw thread, the pump barrel of oil well pump
One end be equipped with internal screw thread, the external screw thread of 1 second end of connector connects with the screw-internal thread fit of one end of the pump barrel of oil well pump.Its
In, the outer diameter of connector 1 is less than the internal diameter of oil pipe and pump barrel.
When the first end and oil pipe of connector 1 are indirectly connected with, the second end of connector 1 and the pump barrel of oil well pump are indirectly connected with
When, the first end of connector 1 is arranged external screw thread, and one end of oil pipe is also provided with external screw thread, and the one of the first end of connector 1 and oil pipe
End is cooperatively connected by Double-ended nut.Likewise, external screw thread is arranged in the second end of connector 1, one end of pump barrel is also provided with outer spiral shell
Line, the second end of connector 1 and one end of pump barrel are cooperatively connected by Double-ended nut.
Optionally, connector 1 may include ontology 11 and seal 12；Ontology 11 can be cylindrical tube, ontology 11
Inner cavity be in truncated cone-shaped, and the internal diameter of the first end of ontology 11 be greater than ontology 11 second end internal diameter.The first end of ontology 11
The second end of connected pipes, ontology 11 connects pump barrel.Illustratively, the first end of ontology 11 is equipped with internal screw thread, and the of ontology 11
Two ends are equipped with external screw thread, and one end of oil pipe is equipped with external screw thread, the outer spiral shell of one end of the internal screw thread and oil pipe of the first end of ontology 11
Line is cooperatively connected, and one end of pump barrel is provided with internal screw thread, the internal screw thread of one end of the external screw thread and pump barrel of the second end of ontology 11
It is cooperatively connected.In this way, can dismantle ontology 11 when the component that the device includes is damaged, the component of damage is carried out more
It changes, the maintenance in more convenient device later period.
The center of seal 12 is provided with first through hole, and seal 12 is located in ontology 11, and seal 12 is truncated cone-shaped, sealing
The outer diameter of the first end of body 12 is greater than the outer diameter of the second end of seal 12, and the outer diameter of the first end of seal 12 is less than ontology
The internal diameter of 11 first end, the outer diameter of the second end of seal 12 are greater than the internal diameter of the second end of ontology 11, the height of seal 12
Degree is less than the height of ontology 11.In this way, since the inner cavity of ontology 11 and seal 12 are in up big and down small truncated cone-shaped, and seal
The maximum value and minimum value of the outer diameter of body 12 are all larger than the minimum value of the internal diameter of ontology 11, therefore, seal 12 are being put into this
After in 11 inner cavity of body, seal 12 can be stuck in the inner cavity of ontology 11, to realize the fixation of seal 12.
Connecting rod 2 can be stock, and the first end diameter of connecting rod 2 is more than or equal to the straight of the sucker rod of oil well pump
Diameter.Optionally, connecting rod 2 or tube body, at this point, the outer diameter of the first end of connecting rod 2 is more than or equal to oil well pump
The diameter of sucker rod.
It should be noted that if connecting rod 2 is stock, then the first end of connecting rod 2 passes through first through hole and oil well pump
Sucker rod is welded directly together, and the second end of connecting rod 2 can also directly weld together with one end of piston.Alternatively, even
The first end of extension bar 2 is provided with external screw thread, and one end setting of oil pipe is also equipped with external screw thread, the first end and oil pipe of connecting rod 2
One end pass through Double-ended nut be cooperatively connected.If connecting rod 2 is tube body, internal screw thread has been can be set in the first end of connecting rod 2,
External screw thread, the outer spiral shell that the internal screw thread of the first end of connecting rod 2 passes through one end with sucker rod has can be set in one end of sucker rod
Line is cooperatively connected, and the second end of connecting rod 2 can directly weld together with one end of piston.
In a kind of mode in the cards, as shown in Figure 1, connecting rod 2 for isodiametric stock or can wait outer diameters
Tube body.In this case, 3 sets of the first sealing ring is in connecting rod 2.During transferring sucker rod, due to the first sealing ring 3
It can be tightly attached on the outer wall of connecting rod 2, therefore, the first sealing ring 3 can move downwardly together with connecting rod 2, when connecting rod 2
When arriving extreme lower position down, the first sealing ring 3 is located at the lower section of first through hole, and the upper surface of the first sealing ring 3 and first through hole
Lower end between there are gap, the crude oil in such pump barrel can be flowed to by the gap between connecting rod 2 and first through hole
Oil pipe.When mentioning extreme higher position in connecting rod 2, the first sealing ring 3 is located between the hole wall and connecting rod 2 of first through hole, from
And realize the sealing to the gap between the hole wall and connecting rod of first through hole, in this way, the pressure difference at the both ends of piston increases, thus
The crude oil amount for causing piston to extract also increases therewith, and then makes efficiency of pump increase of pumping.
Optionally, in the mode of alternatively possible realization, as shown in Fig. 2, connecting rod 2 is the stock that diameter does not wait, and
The diameter of the first end of connecting rod 2 is less than the diameter of the second end of connecting rod 2.First sealing ring 3 is fixed in first through hole.It needs
It is noted that can be provided with seal groove on the hole wall of first through hole, the first sealing ring 3 is fixed in the seal groove,
In, the depth of seal groove is less than the difference of sealing ring outer diameter and inner diameter.It is upper mention sucker rod after, the first sealing ring 3 is located at
Between the hole wall of first through hole and the second end of connecting rod 2, to realize between the hole wall and connecting rod of first through hole
The sealing of gap, in this way, the pressure difference at the both ends of piston increases, the crude oil amount extracted so as to cause piston also increases therewith, and then makes
The efficiency of pump of pumping increases.After transferring sucker rod, the first sealing ring 3 is located at the hole wall and the first of connecting rod 2 of first through hole
Between end, since the diameter of the first end of connecting rod 2 is less than the diameter of the second end of connecting rod 2,2 He of first connecting rod
There are gap between first sealing ring 3, crude oil in such pump barrel can by the first end and first through hole of connecting rod 2 it
Between gap flow in oil pipe.
In addition, the material of the first sealing ring 3 can have certain ductility and elasticity and tension for rubber, polyurethane etc.
Good one of the material of performance, in this way, when connecting rod 2 is isodiametric stock or waits the tube body of outer diameters, the first sealing ring 3
It can be closely bonded with connecting rod 2, when connecting rod 2 is the stock that diameter does not wait, be conducive to for the first sealing ring 3 being fixed on
In first through hole.It should be noted that if connecting rod 2 is isodiametric stock or waits the tube bodies of outer diameters, when being mentioned on sucker rod
When extreme higher position, the first sealing ring 3 is less than the displacement of half of stroke of piston at a distance from the lower end of first through hole, if connecting rod 2
For the not equal stock of diameter, when mentioning extreme higher position on sucker rod, the first sealing ring 3 be located at 2 diameter change of connecting rod and
Between the lower end of first through hole, and it is less than half of stroke of piston at 2 diameter change of connecting rod at a distance from the lower end of first through hole
Displacement.
Optionally, which further includes the second sealing ring 4, it is upper mention sucker rod after, it is logical that the second sealing ring 4 is located at first
Between the hole wall and connecting rod 2 in hole, to seal the gap between the hole wall of first through hole and connecting rod.It should be noted that working as
When mentioning extreme higher position on sucker rod, the second sealing ring 4 is similarly less than half of stroke of piston at a distance from first through hole lower end
Displacement.That is, can realize sealing by way of Double seal ring in the utility model embodiment, in this way, wherein one
When the sealing performance of a sealing ring reduces, pump barrel can also be sealed by another sealing ring, so that the device is close
Sealing property is more preferable.
In the utility model embodiment, the first end of the connecting rod of the device passes through the oil pumping of first through hole and oil well pump
Bar connection, connecting rod second end connection oil well pump piston, it is upper mention sucker rod after, connecting rod is also on sucker rod
Rise, at this point, the first sealing ring is located between the connecting rod and the hole wall of first through hole, thus realize to the hole wall of first through hole and
The sealing in the gap between connecting rod, in this way, the pressure difference at the both ends of piston increases, the crude oil amount extracted so as to cause piston also with
Increase, and then make pump the efficiency of pump increase.
It should be noted that connector may include ontology and seal, the first end of ontology is equipped with internal screw thread, ontology
Second end is equipped with external screw thread, and one end of oil pipe is equipped with external screw thread, the outer spiral shell of one end of the internal screw thread and oil pipe of the first end of ontology
Line is cooperatively connected, and one end of pump barrel is provided with internal screw thread, the external screw thread of the second end of ontology and one end screw-internal thread fit of pump barrel
Connection.In this way, can dismantle ontology when the component that the device includes is damaged, the component of damage is replaced, more
Facilitate the maintenance in device later period.In addition, the device further includes the second sealing ring, in this way, in the sealing of a wherein sealing ring
When reduced performance, pump barrel can also be sealed by another sealing ring, so that the sealing performance of the device is more preferable.
The foregoing is merely the alternative embodiments of the utility model, are not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of oil pumping pump sealing apparatus, which is characterized in that described device includes connector (1), connecting rod (2) and the first sealing
It encloses (3)；
The first end connected pipes of the connector (1), the pump barrel of the second end connection oil well pump of the connector (1) are described
The center of connector (1) is provided with first through hole；
The first end of the connecting rod (2) passes through the first through hole and connect with the sucker rod of the oil well pump, the connecting rod
(2) second end connects the piston of the oil well pump；
It is upper mention the sucker rod after, first sealing ring (3) be located at the first through hole hole wall and the connecting rod
(2) between, to seal the gap between the hole wall of the first through hole and the connecting rod.
2. device as described in claim 1, which is characterized in that described device further includes the second sealing ring (4), described in upper mention
After sucker rod, second sealing ring (4) is located between the hole wall and the connecting rod (2) of the first through hole, with sealing
Gap between the hole wall of the first through hole and the connecting rod.
3. device as described in claim 1, which is characterized in that the connector (1) includes ontology (11) and seal (12)；
The ontology (11) is cylindrical tube, and the inner cavity of the ontology (11) is in truncated cone-shaped, and the first of the ontology (11)
The internal diameter at end is greater than the internal diameter of the second end of the ontology (11), and the first end of the ontology (11) connects the oil pipe, described
The second end of ontology (11) connects the pump barrel；
The center of the seal (12) is provided with the first through hole, and the seal (12) is located in the ontology (11), institute
Stating seal (12) is truncated cone-shaped, and the outer diameter of the first end of the seal (12) is greater than the second end of the seal (12)
Outer diameter, and the outer diameter of the first end of the seal (12) is less than the internal diameter of the first end of the ontology (11), the seal
(12) outer diameter of second end is greater than the internal diameter of the second end of the ontology (11), and the height of the seal (12) is less than described
The height of ontology (11).
4. device as claimed in claim 3, which is characterized in that the first end of the ontology (11) be equipped with internal screw thread, described
The second end of body (11) is equipped with external screw thread；
One end of the oil pipe be equipped with external screw thread, one end of the internal screw thread and the oil pipe of the first end of the ontology (11) outside
It is threadedly engaged connection；
One end of the pump barrel is provided with internal screw thread, in the external screw thread of second end of the ontology (11) and one end of the pump barrel
It is threadedly engaged connection.
5. the device as described in claim 1-4 is any, which is characterized in that the connecting rod (2) is isodiametric stock；
First sealing ring (3) covers on the connecting rod (2), it is upper mention the sucker rod after, first sealing ring
(3) between the hole wall and the connecting rod (2) of the first through hole, after transferring the sucker rod, described first is close
Seal (3) is located at the lower section of the first through hole, and between the upper surface of the first sealing ring (3) and the lower end of the first through hole
There are gaps.
6. the device as described in claim 1-4 is any, which is characterized in that the diameter of the first end of the connecting rod (2) is less than
The diameter of the second end of the connecting rod (2), first sealing ring (3) are fixed in the first through hole；
It is upper mention the sucker rod after, first sealing ring (3) be located at the first through hole hole wall and the connecting rod
(2) between second end, after transferring the sucker rod, first sealing ring (3) is located at the hole wall of the first through hole
Between the first end of the connecting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822167876.1U CN209621590U (en) | 2018-12-21 | 2018-12-21 | Sealing device for oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822167876.1U CN209621590U (en) | 2018-12-21 | 2018-12-21 | Sealing device for oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209621590U true CN209621590U (en) | 2019-11-12 |
Family
ID=68446651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822167876.1U Active CN209621590U (en) | 2018-12-21 | 2018-12-21 | Sealing device for oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209621590U (en) |
-
2018
- 2018-12-21 CN CN201822167876.1U patent/CN209621590U/en active Active
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