CN105065254B - A kind of plunger type fracturing pump and oil fracturing car - Google Patents
A kind of plunger type fracturing pump and oil fracturing car Download PDFInfo
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- CN105065254B CN105065254B CN201510509100.1A CN201510509100A CN105065254B CN 105065254 B CN105065254 B CN 105065254B CN 201510509100 A CN201510509100 A CN 201510509100A CN 105065254 B CN105065254 B CN 105065254B
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- plunger
- head body
- pump head
- type fracturing
- fracturing pump
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Abstract
The invention discloses a kind of plunger type fracturing pump and oil fracturing car.The fracturing pump includes pump head body, and the plunger body that can be moved back and forth, and the plunger body includes：First plunger, the end of first plunger is arranged in the pump head body, and first plunger includes the first endoporus of axial direction；Second plunger, second plunger is arranged in the first endoporus of first plunger；Installation portion, the installation portion is arranged between first plunger and the second plunger, for making mutually fastening or disengaging between first plunger and the second plunger.The present invention need not change plunger and pump head body, you can provide the conveying of different pressures and discharge capacity, and pumping efficiency is high, and simple in construction, convenient disassembly, cost is low.
Description
Technical field
The invention mainly relates to petroleum equipment technical field, specifically, it is related to a kind of plunger type fracturing pump, and set
There is the oil fracturing car of the plunger type fracturing pump.
Background technology
In the prior art, petroleum equipment plunger type compression pump is moved back and forth in fact by plunger in pump head body (or plunger case)
The high-pressure delivery of existing pressure break medium.To ensure pumping efficiency when moving back and forth, plunger it is cylindrical with pump head body (or plunger case) it
Between gap typically require be less than 10mm.
When the fracturing unit truck of former model is commonly equipped with the plunger of at least three kinds of specifications, the plunger of different-diameter size
Realize the conveying of different pressures and discharge capacity.According to pressure break duty requirements select different plungers when, need to select suitable pump head body or
Plunger case corresponds carry out fracturing work, it is ensured that be unlikely to because volume is too big between plunger and pump head body (or plunger case)
And reduce the transfer efficiency of pump.Due to the pump head body (or plunger case) of correspondingly-sized need to be changed when changing plunger together, dismount numerous
It is trivial, waste time and energy.
The patent of Application No. 200820190658.3 discloses a kind of easy-disassembling-assembling Five-cylinder piston pump, including one end is
Big connecting rod that the crankshaft bearing seat other end is connected in crosshead, one end are connected to the outer other end of crosshead and are connected to the small of plunger
Pump head where connecting rod, plunger motion, the packing of the cylindrical sealing support plunger of plunger, outside every cylinder plug it is set by song
The pull bar that power end housing where axle linkage is connected with pump head, described big connecting rod be it is split type, bent axle bearing with
The part of shaft two is connected to form with screw, and described packing is assemblied in packing case assembly, and packing case assembly is mutually filled with pump head
Match somebody with somebody.
The technical scheme is improved to split type due to big connecting rod, makes the convenient to disassembly of linkage, due to being provided with
Packing case assembly, selects different packing boxs according to the plunger of different specification size, can be changed without pump head body (or plunger case), subtract
Few pump head deposit, and plunger dismounting, replacing simplicity.But cavity volume becomes big when being replaced by small plunger due to big plunger, so as to drop
Low pumping efficiency, also has the problem of maintenance cost is higher in addition.
The content of the invention
In view of this, it is an object of the invention to provide a kind of plunger type fracturing pump, it is possible to resolve dismounts in the prior art numerous
It is trivial, change plunger after pumping efficiency reduce defect or at least one.
The plunger type fracturing pump of the present invention, including pump head body, and the plunger body that can be moved back and forth, the plunger body
Including：
First plunger, the end of first plunger is arranged in the pump head body, and first plunger includes axial direction
First endoporus；
Second plunger, second plunger is arranged in the first endoporus of first plunger；
Installation portion, the installation portion is arranged between first plunger and the second plunger, for making first plunger
The mutually fastening or disengaging between the second plunger.
Further, second plunger includes the second endoporus of axial direction, and the plunger body also includes：
3rd plunger, the 3rd plunger is arranged in the second endoporus of second plunger, second plunger and
Three plungers mutually can be fastened or departed from.
Further, first plunger is arranged in the pump head body by locking nut.
Further, it is provided with the first copper ring between the outer wall of first plunger and the inwall of the pump head body.
Further, it is provided with the first seal between the outer wall of first plunger and the inwall of the pump head body.
Further, be additionally provided between the inwall of first plunger and the outer wall of the second plunger the second copper ring and/or
Second seal.
Further, the installation portion is to be provided with and the cutting ferrule on cutting ferrule, first plunger and/or the second plunger
The holding section of cooperation.
Further, second plunger is fixedly connected with piston rod or connecting rod.
Further, the 3rd plunger is fixedly connected with piston rod or connecting rod.
Another aspect of the present invention, also provides a kind of oil fracturing car, and the oil fracturing car is provided with foregoing any
The plunger type fracturing pump of item.
The plunger body of the present invention includes mutually to fasten or departing between the first plunger and the second plunger, the first plunger,
During one of operating mode, it can be moved back and forth by the second plunger；In another operating mode, the first plunger and the second plunger conduct
Overall to move back and forth together, so as to realize various sizes of plunger function, there is provided the conveying of different pressures and discharge capacity.
In addition, between the first plunger of the invention and pump head body, and the dimensional fits between the second plunger and the first plunger
Good, cavity volume is small, thus can reduce pressure break loss, improves pressure break medium pumping efficiency.
At the same time, the present invention need not only change plunger, and without pump head body (or plunger case) is changed, operating mode switches
When only need the installment state of adjust installation portion, overall structure is simple, and convenient disassembly, cost is low.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the plunger type fracturing pump of one embodiment of the invention；
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1.
Description of reference numerals：
1 first plunger
2 second plungers
3 pump head bodies
4 locking nuts
5 first copper rings
6 first seals
7 second copper rings
8 second seals
9 cutting ferrules
10 piston rods
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In the present invention, term " first ", " second ", " the 3rd " are mainly used in distinguishing different parts, but part are not entered
Row concrete restriction.
It is the structural representation of the plunger type fracturing pump of one embodiment of the invention shown in Fig. 1.The embodiment includes pump head body 3
And plunger body.The structure of pump head body 3 refers to existing and improved technology, and plunger body can be carried out back and forth under the driving of oil cylinder etc.
Motion, and then realize the high-pressure delivery of pressure break medium.
The plunger body at least includes the first plunger 1, the second plunger 2 and installation portion, wherein the end of the first plunger 1 is arranged at
In pump head body 3, the first plunger 1 includes the first endoporus of axial direction；Second plunger 2 is arranged in the first endoporus of the first plunger 1；Peace
Dress portion is arranged between the first plunger 1 and the second plunger 2, for making mutually fastening or de- between the first plunger 1 and the second plunger 2
From.
Aforementioned structure can at least realize two operating modes, wherein during an operating mode, the first plunger 1 and the phase of the second plunger 2
Mutually depart from, can be moved back and forth by the second plunger 2, realize the suction and discharge of pressure break medium；In another operating mode, first
The mutually fastening of plunger 2 of plunger 1 and second, they move back and forth together as overall, and now the active area of plunger body is
The active area sum of two plungers, thus various sizes of plunger function can be realized there is provided the conveying of different pressures and discharge capacity.
Between the first plunger 1 and pump head body 3 of previous embodiment, and the size between the second plunger 2 and the first plunger 1
Work good, cavity volume is small, thus pressure break loss can be reduced, improve pressure break medium pumping efficiency；At the same time, operating personnel are not
Plunger need not be only changed, without pump head body 3 (or plunger case) is changed, operating mode only needs the installation shape of adjust installation portion when switching
State, overall structure is simple, and convenient disassembly, cost is low.
Installation portion can be a variety of possible structures, the installation of various ways be realized, as long as can be removably by the first post
Plug 1 is fastened or departed from the second plunger 2, you can realize the technique effect of the present invention.It is preferred that installation portion is cutting ferrule 9, the first plunger 1
And/or second be provided with the holding section coordinated with cutting ferrule 9 on plunger 2.The holding section can be corresponding step surface or other possibility.
In addition, can also set locking nut 4 between the first plunger 1 and the second plunger 2.
When the second plunger 2 moves alone, the first plunger 1 is fixed, and preferably the first plunger 1 is arranged on by locking nut 4
In pump head body 3.In order to carry out guide effect to the motion of the first plunger 1, preferably the outer wall of the first plunger 1 and pump head body 3 is interior
The first copper ring 5 is provided between wall.In addition, in order to improve sealing property, preferably the outer wall of the first plunger 1 and pump head body 3 is interior
The first seal 6 is provided between wall, first seal 6 can be located at the inner side of the first copper ring 5.
In addition, in order to carry out guide effect to the motion of the second plunger 2, the inwall of the first plunger 1 and the second plunger 2 outside
The second copper ring 7 is additionally provided between wall；The second sealing also can be set between the outer wall of the inwall of first plunger 1 and the second plunger 2
Body 8, to improve sealing property, the second seal 8 can be located at the inner side of the second copper ring 7.
In previous embodiment, plunger body includes two plungers.It should be clear that the quantity of plunger can also have it is more can
Can, such as three.Correspondingly, the second plunger 2 includes the second endoporus of axial direction, and plunger body also includes the 3rd plunger, the 3rd plunger
In the second endoporus for being arranged at the second plunger 2, the second plunger 2 mutually can be fastened or depart from the 3rd plunger.So, the structure is extremely
Three kinds of operating modes can be realized less：3rd plunger moves alone, and the second plunger 2 moves together with the 3rd plunger, the first plunger 1, the
Two plungers 2 and the 3rd plunger mass motion, it is same to realize the technique effect of the present invention.
The driving parts such as the plunger body of previous embodiment and oil cylinder are connected, in each operating mode, and the plunger positioned at most inner side is equal
Participate in moving back and forth, the plunger direct or indirect connection that oil cylinder can be with the most inner side.In the embodiment shown in Fig. 1 and Fig. 2, the
Two plungers 2 are fixedly connected with piston rod 10 or connecting rod, and they may be integrally formed or are connected by screw；When the quantity of plunger is three
When individual, the 3rd plunger is fixedly connected with piston rod 10 or connecting rod.
In addition to the plunger type fracturing pump of previous embodiment, the present invention also provides one kind and is provided with aforementioned structure plunger type pressure
Split the oil fracturing car of pump.The structure of the oil fracturing car refers to existing and improved technology, herein to this without repeating.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of plunger type fracturing pump, including pump head body (3), and the plunger body that can be moved back and forth, it is characterised in that institute
Stating plunger body includes：
First plunger (1), the end of first plunger (1) is arranged in the pump head body (3), the first plunger (1) bag
Include the first axial endoporus；
Second plunger (2), second plunger (2) is arranged in the first endoporus of first plunger (1)；
Installation portion, the installation portion is arranged between first plunger (1) and the second plunger (2), for making first post
Fill in mutually fastening or disengaging between (1) and the second plunger (2).
2. plunger type fracturing pump according to claim 1, it is characterised in that second plunger (2) includes the of axial direction
Two endoporus, the plunger body also includes：
3rd plunger, the 3rd plunger is arranged in the second endoporus of second plunger (2), second plunger (2) with
3rd plunger mutually can be fastened or departed from.
3. plunger type fracturing pump according to claim 1, it is characterised in that first plunger (1) passes through locking nut
(4) it is arranged in the pump head body (3).
4. plunger type fracturing pump according to claim 1, it is characterised in that the outer wall of first plunger (1) with it is described
The first copper ring (5) is provided between the inwall of pump head body (3).
5. plunger type fracturing pump according to claim 1, it is characterised in that the outer wall of first plunger (1) with it is described
The first seal (6) is provided between the inwall of pump head body (3).
6. plunger type fracturing pump according to claim 1, it is characterised in that the inwall and second of first plunger (1)
The second copper ring (7) and/or the second seal (8) are additionally provided between the outer wall of plunger (2).
7. the plunger type fracturing pump according to claim any one of 1-6, it is characterised in that the installation portion is cutting ferrule (9),
The holding section coordinated with the cutting ferrule (9) is provided with first plunger (1) and/or the second plunger (2).
8. the plunger type fracturing pump according to claim any one of 1-6, it is characterised in that second plunger (2) is with living
Stopper rod (10) or connecting rod are fixedly connected.
9. plunger type fracturing pump according to claim 2, it is characterised in that the 3rd plunger is with piston rod (10) or even
Bar is fixedly connected.
10. a kind of oil fracturing car, it is characterised in that the oil fracturing car is provided with described in claim any one of 1-9
Plunger type fracturing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509100.1A CN105065254B (en) | 2015-08-18 | 2015-08-18 | A kind of plunger type fracturing pump and oil fracturing car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509100.1A CN105065254B (en) | 2015-08-18 | 2015-08-18 | A kind of plunger type fracturing pump and oil fracturing car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105065254A CN105065254A (en) | 2015-11-18 |
| CN105065254B true CN105065254B (en) | 2017-09-19 |
Family
ID=54494727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510509100.1A Active CN105065254B (en) | 2015-08-18 | 2015-08-18 | A kind of plunger type fracturing pump and oil fracturing car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065254B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483378A (en) * | 2020-12-03 | 2021-03-12 | 建湖金拓机械制造有限公司 | Quick assembly disassembly plunger is used to fracturing unit truck hydraulic end |
| CN114810576B (en) * | 2022-05-18 | 2024-02-23 | 河南省金启橡塑有限公司 | Plunger packing for fracturing truck |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3891356A (en) * | 1973-11-21 | 1975-06-24 | Armco Steel Corp | Fluid guide plunger system |
| DE3608702A1 (en) * | 1986-03-15 | 1987-09-17 | Wilhelm Doerenkaemper | Pumping device for delivering liquids |
| CN2688929Y (en) * | 2004-04-26 | 2005-03-30 | 毛刚强 | Piston body of plunger piston |
| WO2012083179A2 (en) * | 2010-12-16 | 2012-06-21 | S.P.M. Flow Control, Inc. | Plunger packing with wedge seal having extrusion recess |
| CN102491127B (en) * | 2011-12-20 | 2013-09-11 | 上海沛愉机械制造有限公司 | Wire-threading mechanism applicable to rotary type machine |
| CN203879731U (en) * | 2014-04-29 | 2014-10-15 | 南京德朔实业有限公司 | Fluid pump and oil pumping device composed of fluid pump |
| CN204900232U (en) * | 2015-08-18 | 2015-12-23 | 三一重型能源装备有限公司 | Plunger type fracturing pump and oil fracturing unit truck |
-
2015
- 2015-08-18 CN CN201510509100.1A patent/CN105065254B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105065254A (en) | 2015-11-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170111 Address after: 102206 South Beijing city of Changping District science and Technology Park 31 manufacturing center of Beijing Liu Lu Li Applicant after: 31 petroleum Intelligent Equipment Co., Ltd. Address before: 102206 Changping District City, North Road, Beijing, the 31 Industrial Park Applicant before: SANY HEAVY ENERGY EQUIPMENT CO., LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |