CN208578697U - A kind of long-plunger reciprocating motion type oil well pump - Google Patents
A kind of long-plunger reciprocating motion type oil well pump Download PDFInfo
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- CN208578697U CN208578697U CN201821063719.XU CN201821063719U CN208578697U CN 208578697 U CN208578697 U CN 208578697U CN 201821063719 U CN201821063719 U CN 201821063719U CN 208578697 U CN208578697 U CN 208578697U
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- Prior art keywords
- outer tube
- pump barrel
- reciprocating motion
- piston rod
- long
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of long-plunger reciprocating motion type oil well pumps, including outer tube and work pump barrel, in the work pump barrel insertion setting to the outer tube, and the upper and lower ends between the outer tube and the work pump barrel pass through the first box cupling and the connection of the second box cupling respectively, the bottom end insertion of the outer tube is provided with blind plugging, and the blind plugging is connected through a screw thread with the outer tube, the bottom end of the work pump barrel is equipped with oil suction chamber, and the side insertion of the oil suction chamber is provided with oil inlet, one end of the oil inlet passes through the outer tube and extraneous conducting, equipped with steel ball roll wheel assembly, when piston rod moves down, spring spool generates elastic deformation due to squeezing, so that steel ball roll wheel assembly is bonded movement with outer tube wall, when the part power of spring spool elastic-restoring force offer later drives piston rod to move up, steel ball roll wheel assembly plays pair The effect that piston rod is limited and vertically moved, fracture caused by preventing because of piston rod deviation vibration, improves practicability.
Description
Technical field
The utility model relates to pump technical field of pumping, specially a kind of long-plunger reciprocating motion type oil well pump.
Background technique
Oil pump is that the common downhole hardware for crude oil in well being given rise to ground is driven by pumping unit, common oil well pump mainly by
The most of composition of pump barrel, inlet valve, piston, drain four, the fixed form according to oil well pump in underground, can be divided into tubing pump and
Insert pump, a kind of existing long-plunger reciprocating motion type oil well pump generate friction to device table when oil well pump enters earth's surface
Biggish damage is caused in face, and construction is not convenient enough, while when piston rod drives piston boit to pump, if generating vibration
It is dynamic, cause piston rod horizontal micro- inclined, uses for a long time, be easy to cause rod fracture, practicability is lower, and internal valves are to crude oil
By obstructive relatively strong, at the same time, sand particles are easy to be deposited between piston boit and work pump barrel, move back and forth simultaneously
The grains of sand are extracted out again, be easy to cause the service life for influencing device to interstructural abrasion.
So how to design a kind of long-plunger reciprocating motion type oil well pump, becoming us will currently be solved the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of long-plunger reciprocating motion type oil well pumps, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of long-plunger reciprocating motion type oil well pump,
Including outer tube and work pump barrel, in the work pump barrel insertion setting to the outer tube, and the outer tube and the work pump barrel
Between upper and lower ends pass through respectively the first box cupling and the second box cupling connection, the outer tube bottom end insertion is provided with blind plugging, and
The blind plugging is connected through a screw thread with the outer tube, and the bottom end of the work pump barrel is equipped with oil suction chamber, and the one of the oil suction chamber
Side insertion is provided with oil inlet, and by the outer tube and extraneous conducting, the top of the oil suction chamber is set for one end of the oil inlet
There is fixed valve, and the fixed valve is welded and fixed with the work pump barrel, being internally embedded for work pump barrel is provided with piston
Column, and one end of the piston boit has been fixed by screws piston rod, the top and bottom end of the piston boit are installed respectively
There are upstream valve and downstream valve, the two sides of the piston rod are equipped with several spring spools, and the spring spool and the spring
It is connected between sleeve by the second shaft, is connected between the spring spool and the piston rod by first rotating shaft.
Further, the surface of the outer tube is coated with coating, and the coating is the industrial material of polyurethane elastomer.
Further, one end of second shaft is welded with steel ball roll wheel assembly, and the steel ball roll wheel assembly and institute
The inner wall for stating outer tube fits closely.
Further, the upstream valve, the top of the downstream valve and the fixed valve and bottom end are equipped with inner hole, and push up
The inner hole at end is important actor shape, and the diameter of bottom end is the half of top end diameter.
Further, annular empty slot, and the annular empty slot surrounding are equipped between the piston boit and the work pump barrel
Annular thickness it is 1cm higher than internal annular thickness.
Further, the side of the oil suction chamber is welded with metal mesh, is stainless steel material, and the mesh of the metal mesh
Diameter is 1cm, and is correspondingly connected with the oil inlet.
Compared with prior art, the utility model has the beneficial effects that this kind of long-plunger reciprocating motion type oil well pump, passes through
It is the industrial material of polyurethane elastomer equipped with coating, corrosion-resistant, wear-resistant while environmentally friendly with material, toughness is higher, is suitable for
Ground end pumping operation, easy for construction, ultrahigh in efficiency, structure is simple, convenient and practical, is equipped with steel ball roll wheel assembly, and piston rod is downward
When mobile, spring spool generates elastic deformation due to squeezing, so that steel ball roll wheel assembly is bonded movement with outer tube wall, bullet later
Spring sleeve elastic-restoring force provides part power and drives piston rod when moving up, steel ball roll wheel assembly play to piston rod limit and
The effect vertically moved, fracture caused by preventing because of piston rod deviation vibration, improves practicability, is equipped with inner hole, is important actor shape,
The diameter of bottom end is the half of top end diameter, and crude oil is by fixed valve, downstream valve and upstream valve, the inner hole of each valve tip,
The bore of bottom end is small, prevents valve internal valve croquet from leaking out, and top bore is big, increases the amount that crude oil passes through, and then improves work effect
Rate is equipped with annular empty slot, and the annular thickness of surrounding is 1cm higher than internal annular thickness, and piston boit seals work pump barrel always, together
When because annular empty slot surrounding is compared with interior thickness height, the grains of sand are eventually deposited at surrounding, into the channel of surrounding, avoid institute's sand setting grain again
It is secondary to be extracted, it reduces because sandstone and interstructural abrasion influence pumping operation, improves the science of design, be equipped with metal mesh,
Stainless steel material, mesh diameter 1cm, when crude oil is entered in oil suction chamber by oil inlet, primary filtration avoids biggish sand
The impurity of stone enters, and has tentatively ensured the safety used.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the spring spool partial structural diagram of the utility model；
Fig. 3 is the annular empty slot portion structural schematic diagram of the utility model；
In figure: 1- outer tube；2- piston rod；3- spring spool；4- first rotating shaft；5- upstream valve；The first box cupling of 6-；7- piston
Column；8- downstream valve；9- work pump barrel；The second box cupling of 10-；11- fixed valve；12- oil suction chamber；13- blind plugging；14- oil inlet；15-
Inner hole；16- annular empty slot；The second shaft of 17-；18- steel ball roll wheel assembly；19- metal mesh.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of long-plunger reciprocating motion type oil well pump, packet
Outer tube 1 and work pump barrel 9 are included, the insertion of work pump barrel 9 setting is arrived in the outer tube 1, and the outer tube 1 and the working barrel
Upper and lower ends between cylinder 9 pass through the first box cupling 6 and the connection of the second box cupling 10 respectively, and the first box cupling 6 and the second box cupling 10 are by work
Make pump barrel 9 to fix and limit in outer tube 1, improve whole stability, the bottom end insertion of the outer tube 1 is provided with blind plugging
13, and the blind plugging 13 is connected through a screw thread with the outer tube 1, the bottom end of the work pump barrel 9 is equipped with oil suction chamber 12, and described
The side insertion of oil suction chamber 12 is provided with oil inlet 14, and one end of the oil inlet 14 is connected by the outer tube 1 with extraneous, institute
The top for stating oil suction chamber 12 is equipped with fixed valve 11, and the fixed valve 11 is welded and fixed with the work pump barrel 9, the working barrel
Being internally embedded for cylinder 9 is provided with piston boit 7, and one end of the piston boit 7 has been fixed by screws piston rod 2, described
The top and bottom end of piston boit 7 are separately installed with upstream valve 5 and downstream valve 8, and the two sides of the piston rod 2 are equipped with several springs
Sleeve 3, and connected between the spring spool 3 and the spring spool 3 by the second shaft 17, the spring spool 3 and institute
It states and is connected between piston rod 2 by first rotating shaft 4.
Further, the surface of the outer tube 1 is coated with coating, and the coating is the industrial material of polyurethane elastomer,
Corrosion-resistant, wear-resistant while environmentally friendly with material, toughness is higher, is suitable for ground end pumping operation, easy for construction, ultrahigh in efficiency, structure
Simply, convenient and practical.
Further, one end of second shaft 17 is welded with steel ball roll wheel assembly 18, and the steel ball roll wheel assembly
18 fit closely with the inner wall of the outer tube 1, and when piston rod 2 moves down, spring spool 3 generates elastic shape due to squeezing
Become, so that steel ball roll wheel assembly 18 is bonded movement with 1 inner wall of outer tube, 3 elastic-restoring force of spring spool provides part power band later
When piston bar 2 moves up, steel ball roll wheel assembly 18 plays the role of that piston rod 2 is limited and vertically moved, and prevents because of work
Stopper rod 2 deviates fracture caused by vibration, improves practicability.
Further, the top and bottom end of the upstream valve 5, the downstream valve 8 and the fixed valve 11 are equipped with inner hole
15, and the inner hole 15 on top is important actor shape, the diameter of bottom end is the half of top end diameter, pump pump work when extraction it is former
Oil, crude oil pass sequentially through fixed valve 11, downstream valve 8 and upstream valve 5, and the inner hole 15 of each valve tip, the bore of bottom end is small, prevent
Only valve internal valve croquet leaks out, and top bore is big, increases the amount that crude oil passes through, and then improve working efficiency.
Further, annular empty slot 16, and the annular empty slot are equipped between the piston boit 7 and the work pump barrel 9
The annular thickness of 16 surroundings is 1cm higher than internal annular thickness, and piston boit 7 seals work pump barrel 9 always, makes sand grains annular empty
Slot 16 deposits, while because annular 16 surrounding of empty slot is compared with interior thickness height, the grains of sand are eventually deposited at surrounding, into the channel of surrounding,
It avoids institute's sand setting grain to be extracted again, avoids influencing pumping operation because of sandstone and interstructural abrasion, improve the section of design
The property learned.
Further, the side of the oil suction chamber is welded with metal mesh 19, is stainless steel material, and the metal mesh 19
Mesh diameter is 1cm, and is correspondingly connected with the oil inlet 14, when crude oil is entered in oil suction chamber 12 by oil inlet 14,
Metal mesh 19 plays preliminary filtering function, avoids the impurity of biggish sandstone from entering, has tentatively ensured the safety used.
Working principle: firstly, piston rod 2 is moved upwards with piston boit 7, spring spool 3 generates elastic shape due to squeezing
Become, so that steel ball roll wheel assembly 18 is bonded movement with 1 inner wall of outer tube, limits and prevent caused by deviateing vibration because of piston rod 2
It is broken, the upstream valve 5 on piston boit 7 is closed by valve ball self weight and overpressure effect, and the pump internal volume below piston boit 7 increases
Greatly, pressure reduction, downstream valve 8 and fixed valve 11 are opened under the action of annular 16 head of liquid of empty slot is with pump pressure difference,
Crude oil is entered in oil suction chamber 12 by oil inlet 14, while liquid is discharged in well head, and piston rod 2 is moved downward with piston boit 7,
3 elastic-restoring force of spring spool provides part power and drives piston rod 2 to moving up, and downstream valve 8 and 11 internal cause valve ball of fixed valve are self-possessed
It closes, when liquid makes pump pressure rise above 7 top pressure of piston boit in 7 extrusion pump of piston boit, upstream valve 5 is opened,
Liquid is discharged to the oil pipe above piston in pump, and the liquid for being equivalent to 7 volume of piston boit is squeezed out in well head.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of long-plunger reciprocating motion type oil well pump, including outer tube (1) and work pump barrel (9), it is characterised in that: the work
In pump barrel (9) insertion setting to the outer tube (1), and the upper and lower ends between the outer tube (1) and the work pump barrel (9) point
Not Tong Guo the first box cupling (6) and the second box cupling (10) connection, the bottom end insertion of the outer tube (1) is provided with blind plugging (13), and institute
It states blind plugging (13) to be connected through a screw thread with the outer tube (1), the bottom end of the work pump barrel (9) is equipped with oil suction chamber (12), and institute
The side insertion for stating oil suction chamber (12) is provided with oil inlet (14), one end of the oil inlet (14) by the outer tube (1) with
The top of external world's conducting, the oil suction chamber (12) is equipped with fixed valve (11), and the fixed valve (11) and the work pump barrel (9)
It is welded and fixed, being internally embedded for the work pump barrel (9) is provided with piston boit (7), and one end of the piston boit (7) passes through spiral shell
Silk is fixedly connected with piston rod (2), and the top and bottom end of the piston boit (7) are separately installed with upstream valve (5) and downstream valve
(8), the two sides of the piston rod (2) are equipped with several spring spools (3), and the spring spool (3) and the spring spool
(3) it is connected between by the second shaft (17), passes through first rotating shaft (4) between the spring spool (3) and the piston rod (2)
Connection.
2. a kind of long-plunger reciprocating motion type oil well pump according to claim 1, it is characterised in that: the outer tube (1)
Surface is coated with coating, and the coating is the industrial material of polyurethane elastomer.
3. a kind of long-plunger reciprocating motion type oil well pump according to claim 1, it is characterised in that: second shaft
(17) one end is welded with steel ball roll wheel assembly (18), and the steel ball roll wheel assembly (18) and the inner wall of the outer tube (1) are tight
Closely connected conjunction.
4. a kind of long-plunger reciprocating motion type oil well pump according to claim 1, it is characterised in that: the upstream valve (5),
The top and bottom end of the downstream valve (8) and the fixed valve (11) are equipped with inner hole (15), and the inner hole (15) on top
For important actor shape, the diameter of bottom end is the half of top end diameter.
5. a kind of long-plunger reciprocating motion type oil well pump according to claim 1, it is characterised in that: the piston boit (7)
Annular empty slot (16) is equipped between the work pump barrel (9), and the annular thickness of described annular empty slot (16) surrounding is than internal
The high 1cm of annular thickness.
6. a kind of long-plunger reciprocating motion type oil well pump according to claim 1, it is characterised in that: the one of the oil suction chamber
Side is welded with metal mesh (19), be stainless steel material, and the mesh diameter of the metal mesh (19) be 1cm, and with the oil inlet
Mouth (14) is correspondingly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821063719.XU CN208578697U (en) | 2018-07-06 | 2018-07-06 | A kind of long-plunger reciprocating motion type oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821063719.XU CN208578697U (en) | 2018-07-06 | 2018-07-06 | A kind of long-plunger reciprocating motion type oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578697U true CN208578697U (en) | 2019-03-05 |
Family
ID=65509983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821063719.XU Expired - Fee Related CN208578697U (en) | 2018-07-06 | 2018-07-06 | A kind of long-plunger reciprocating motion type oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208578697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578496A (en) * | 2019-09-19 | 2019-12-17 | 梅小军 | low-friction well head oil pumping device |
-
2018
- 2018-07-06 CN CN201821063719.XU patent/CN208578697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578496A (en) * | 2019-09-19 | 2019-12-17 | 梅小军 | low-friction well head oil pumping device |
| CN110578496B (en) * | 2019-09-19 | 2021-12-31 | 山东创新石油技术有限公司 | Low-friction well head oil pumping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190305 Termination date: 20190706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |