CN107387389A - A kind of fluid end of fracturing pump - Google Patents
A kind of fluid end of fracturing pump Download PDFInfo
- Publication number
- CN107387389A CN107387389A CN201710727909.0A CN201710727909A CN107387389A CN 107387389 A CN107387389 A CN 107387389A CN 201710727909 A CN201710727909 A CN 201710727909A CN 107387389 A CN107387389 A CN 107387389A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- feed tube
- main feed
- cooling
- fracturing pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of fluid end of fracturing pump, including cylinder body and piston rod, one end activity of piston rod through an end face of cylinder body and is connected with the piston positioned at cylinder interior, and the other end of piston rod and the power end of fracturing pump connect；Charging aperture and discharge gate are provided with cylinder body, inlet valve is provided with above charging aperture, cylinder body is connected by charging aperture with feed pipe, dump valve is provided with above discharge gate, cylinder body is connected by discharge gate with drainage conduit, also include main feed tube, main feed tube is connected with cleaning pipe, and cleaning pipe connects with cylinder interior.Cleaning pipe of the invention by setting main feed tube, being connected with cylinder interior, so that after the completion of fracturing technology, the cylinder body i.e. achievable cleaning to its inside need not be taken apart, manpower and time cost is saved, improve pressure break efficiency, extend the service life of fracturing pump.
Description
Technical field
The present invention relates to field of petroleum exploitation, and in particular to a kind of fluid end of fracturing pump.
Background technology
In the evolution of human civilization, oil plays very important role.But oil belongs to non-renewable resources,
The demand of oil is increased year by year at present simultaneously, result in the oil reserve amount in oil field constantly reduces, and is in for most of
The oil field of middle and later periods, the oil amount obtained by conventional recovery method is seldom, therefore introduces fracturing technology in these oil fields to improve
Oil production rate.
The fracturing unit used in fracturing technology, such as fracturing pump are one of capital equipments for improving oil production rate.Pressure break
Pump can transport fracturing fluid to shaft bottom, and causing the rock break in shaft bottom, increase oil is on stratum so as to improve oil permeability
The quick flowing of lower section is to improve oil productivity.With the raising that people are required oil productivity, fracturing pump is also towards high-power, high
Pressure, huge discharge, output medium be diversified, multi-functional development.
The structure of fracturing pump is broadly divided into power end and fluid end two parts.Wherein, power end generally use crank connecting link
Rotational energy is changed into straight reciprocating motion energy transmission to piston by mechanism, the conventional parts of power end include input shaft,
Bent axle, connecting rod, crosshead, Jie's bar；Fluid end is also referred to as pump head, mainly including cylinder body, cylinder sleeve, piston rod, piston, inlet valve,
The parts such as dump valve.Compared to power end, fluid end is not only expensive and is easily damaged, because fluid end subjects high pressure
With the corrosion of fracturing fluid.
Pressure break pump hydraulic end, i.e. pump head, piston rod by power end toggle drive, in the cylinder body of fluid end
Middle band piston moves reciprocatingly.After the completion of fracturing technology, because fracturing fluid has certain acidity, meeting in cylinder body is remained in
A certain degree of damage is caused to the inwall of cylinder body, therefore usually requires to take cylinder body to clean inside apart, but is torn open
Unload, cylinder body labor intensive and time are installed, also have certain influence to the service life of equipment.
The content of the invention
It is an object of the invention to provide a kind of fluid end of fracturing pump, is existed with solving pressure break pump hydraulic end in the prior art
The problem of needing to take apart cylinder body during cleaning, labor intensive and time, while influenceing the service life of fracturing pump.
The present invention is achieved through the following technical solutions：A kind of fluid end of fracturing pump, including cylinder body and piston rod, piston rod
One end activity through cylinder body an end face and be connected with the piston positioned at cylinder interior, the other end and fracturing pump of piston rod
Power end connection；Charging aperture and discharge gate are provided with cylinder body, is provided with inlet valve above charging aperture, cylinder body passes through charging aperture
Connected with feed pipe, be provided with dump valve above discharge gate, cylinder body is connected by discharge gate with drainage conduit, in addition to main feed liquor
Pipe, main feed tube are connected with cleaning pipe, and cleaning pipe connects with cylinder interior.
, it is necessary to be cleaned to cylinder interior after completion fracturing technology, cleaning way of the prior art is to take cylinder body apart
Its inside is cleaned again.But take apart, install cylinder body labor intensive and time, while also influence the use longevity of fracturing pump
Life.In order to solve the above problems, the invention provides a kind of fracturing pump with cleaning cylinder interior function.
Specifically, same as the prior art, the present invention also includes cylinder body, piston, piston rod, inlet valve, dump valve, charging
Mouth, feed pipe, discharge gate, drainage conduit, the connected mode of above-mentioned parts are identical with connected mode of the prior art.That is piston
For the power end of bar one end connection fracturing pump so as to being driven by power end, the other end of piston rod is connected with piston, piston by
Acting in cylinder body for piston rod moves reciprocatingly.Charging aperture and discharge gate are additionally provided with cylinder body, cylinder body passes through charging aperture, row
Material mouth is connected with feed pipe, drainage conduit respectively, and inlet valve and dump valve are respectively arranged with above charging aperture and discharge gate.Suction
Valve and dump valve are check valve, and its structure is prior art, the compression and bounce-back of the spring mechanism set by its inside, with
And the pressure differential inside and outside cylinder body realizes the suction and discharge of fracturing fluid.
Unlike the prior art, present invention additionally comprises main feed tube, the main feed tube is connected with cleaning pipe, cleaning
Pipe lower end connects with cylinder interior.After the completion of fracturing technology, cleansing medium passes sequentially through main feed tube, cleaning pipe enters cylinder body
In, main feed tube is closed afterwards, prevents cleansing medium from entering cylinder body, and the end that turns on the power, piston is done reciprocal fortune in cylinder body
Dynamic, matching purge medium cleaning cylinder interior, the material after cleaning can discharge from dump valve.In addition, in fracturing technology process
In, main feed tube can also be opened to being passed through cooling medium in cylinder body to realize the urgent cooling in cylinder body, it should be noted that
Be coolant input pressure need be more than cylinder body in pressure cooling medium can be inputted into cylinder body because now piston
It is in motion.Pass through said mechanism so that after the completion of fracturing technology, be can be achieved without taking cylinder body apart to the clear of its inside
Wash, save manpower and time cost, improve pressure break efficiency, extend the service life of fracturing pump.
Further, it is provided perpendicular to main feed tube on the main feed tube between cleaning Guan Yuzhu feed liquor tube inlets
Feed tube is cooled down, the cleaning pipe is arranged on the coolant jacket on the outside of cylinder body, institute parallel to cooling feed tube, cooling feed tube connection
State and cooling drain pipe is provided with coolant jacket.Cooling is additionally provided with main feed tube between main feed liquor tube inlet and cleaning pipe
Feed tube, the cooling feed tube are managed parallel to cleaning, it is preferable that the tie point of cooling feed tube and main feed tube is less than or waited
In the tie point of cleaning Guan Yuzhu feed tubes, so setting is advantageous in that, after cooling medium enters main feed tube, enters first
Enter in coolant jacket, coolant jacket is enclosed on the outside of cylinder body, and the cooling medium in coolant jacket can produce heat exchange with cylinder body, avoid
Caused by cylinder body temperature is too high fracturing pump pump head can not normal work, the cooling medium after heating can set from coolant jacket
Discharged in the cooling drain pipe put.For the area having abundant water resources, main feed tube can connect running water pipe, and cooling drain pipe can be with
Directly connect sewer；For the insufficient area in water source, such as desert, cooling drain pipe can be connected to cooling device,
Cooling medium after heating is recycled in main feed tube, cooling feed tube after cooling device cools down, realizes cooling medium
Recycle.When finding that cylinder body temperature raises suddenly, in order to promptly cool, power end can be stopped immediately, closing cools down out
Liquid pipe, cooling medium will pass through cleaning pipe and flowed into cylinder body, realized to tight in cylinder body after it can not be discharged from coolant jacket
Chilling is but.As can be seen here, the cooling to cylinder body can also be realized, avoids pump head due to temperature mistake by said mechanism, the present invention
It is high and can not normal work or damage, meanwhile, cooling medium can also directly be passed through in cylinder body and cylinder body is realized by the present apparatus
Urgent cooling.
Further, it is provided with stop valve on the cleaning pipe and cooling drain pipe.By managing and cooling down out in cleaning
Stop valve is set in liquid pipe, and operating personnel can more easily control the flow direction of cooling medium or cleansing medium, also work
As when ensure there is enough pressure in cylinder body.
Further, flow-stopping plate and sealing gasket are provided with the main feed tube between cleaning pipe and cooling feed tube, it is described
Flow-stopping plate upper end and the inwall of main feed tube are hinged, and lower end contacts with sealing gasket.Master between cleaning pipe and cooling feed tube
When intake pressure is excessive suddenly when setting the purpose of flow-stopping plate and sealing gasket to be to prevent work in feed tube, part cooling is situated between
Matter enters in cleaning pipe.Although being provided with stop valve on cleaning pipe, cooling medium can be avoided to enter in cylinder body, be deposited in
Coolant temperature in cleaning pipe can gradually rise, and do not have the effect of urgent cooling cylinder interior not only, can also flow to cold
But cover, raise the temperature of cooling medium in coolant jacket.Flow-stopping plate upper end and the inwall of main feed tube are hinged, i.e., flow-stopping plate can be around it
Upper end is rotated, and its lower end in no cooling medium is contacted with sealing gasket in the case of.Pass through flow-stopping plate and sealing gasket
Cooperation, reduce when hydraulic pressure increases suddenly into cleaning pipe in cooling medium amount, only when cool down drain pipe close when, water
When stream determination will be flowed in cleaning pipe, current can just wash flow-stopping plate open and enter in cylinder body；Urgent cooling or cleaning are completed
Afterwards, no cooling medium by when, due to Action of Gravity Field, flow-stopping plate returns back to vertical position again, its lower end again with sealing
Pad contact.
Further, flow-stopping plate is hinged by the inwall of spring hinge and main feed tube.By spring hinge, flow-stopping plate exists
Do not have cooling medium or cleansing medium by when can more easily return back to vertical position and contacted with sealing gasket, reach more
Choked flow purpose well.
The present invention compared with prior art, has the following advantages and advantages：
1st, the cleaning pipe of the invention by setting main feed tube, being connected with cylinder interior so that after the completion of fracturing technology, nothing
The cylinder body i.e. achievable cleaning to its inside need to be taken apart, manpower and time cost is saved, improve pressure break efficiency, extend pressure
Split the service life of pump；
2nd, the present invention can realize the cooling to cylinder body, keep away by setting cooling feed tube, cooling drain pipe and coolant jacket
Exempt from pump head because temperature is too high to normal work or damage, meanwhile, cooling medium directly can also be passed through by the present apparatus
Urgent cooling is realized in cylinder body to cylinder body；
3rd, the present invention is provided with flow-stopping plate and sealing gasket in main feed tube, reduces and enters cleaning when hydraulic pressure increases suddenly
Cooling medium amount in pipe, only when cooling down drain pipe closing, current determine that current can just be washed open when flowing in cleaning pipe
Flow-stopping plate is simultaneously entered in cylinder body；After the completion of urgent cooling or cleaning, no cooling medium by when, because gravity is made
With again flow-stopping plate returns back to vertical position, and its lower end contacts with sealing gasket again.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Mark and corresponding parts title in accompanying drawing：
1- cylinder bodies, 2- pistons, 3- piston rods, the main feed tubes of 4-, 5- cooling feed tubes, 6- cleaning pipes, 7- dump valves, 8- inhale
Enter valve, 9- feed pipes, 10- drainage conduits, 11- coolant jackets, 12- cooling drain pipes, 13- sealing gaskets, 14- flow-stopping plates.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1：
As depicted in figs. 1 and 21, a kind of fluid end of fracturing pump, including cylinder body 1 and piston rod 3, one end of piston rod 3
Activity through an end face of cylinder body 1 and the piston 2 that is connected with inside cylinder body 1, the other end of piston rod 3 and fracturing pump
Power end connects；Charging aperture and discharge gate are provided with cylinder body 1, is provided with inlet valve 8 above charging aperture, cylinder body 1 passes through charging
Mouth is connected with feed pipe 9, and dump valve 7 is provided with above discharge gate, and cylinder body 1 is connected by discharge gate with drainage conduit 10, in addition to
Main feed tube 4, main feed tube 4 are connected with cleaning pipe 6, and cleaning pipe 6 connects with the inside of cylinder body 1；In cleaning pipe 6 and main feed tube 4
The cooling feed tube 5 of main feed tube 4 is provided perpendicular on main feed tube 4 between entrance, cleaning pipe 6 is parallel to cooling feed liquor
Pipe 5, cooling feed tube 5 connect the coolant jacket 11 for being arranged on the outside of cylinder body 1, and cooling drain pipe 12 is provided with coolant jacket 11；Clearly
Wash on pipe 6 and cooling drain pipe 12 and be provided with stop valve；Clean pipe 6 and cool down the interior setting of main feed tube 4 between feed tube 5
There are flow-stopping plate 14 and sealing gasket 13, the upper end of flow-stopping plate 14 and the inwall of main feed tube 4 are hinged, and lower end contacts with sealing gasket 13；Gear
Flowing plate 14 is hinged by the inwall of spring hinge and main feed tube 4.
In use, when needing to suck fracturing fluid, acted on by power end toggle, piston rod 3, which drives, lives
Plug 2 moves reciprocatingly in cylinder body 1.Cooling medium passes sequentially through main feed tube 4, cooling feed tube 5 is entered in coolant jacket 11,
After the heat-shift of cylinder body 1, the elevated cooling medium of temperature flows out from cooling drain pipe 12, and enters cooling device, through cooling
After device cooling, cooling medium is recycled to cooling feed tube 5, realizes recycling for cooling medium.When needing in cylinder body 1
When portion realizes urgent cooling, the power end of fracturing pump is closed, makes the stop motion of piston 2, closes cooling drain pipe 12, cooling medium
Wash flow-stopping plate 14 open to enter in cleaning pipe 6, and eventually enter into cylinder body 1, realize the urgent cooling to cylinder body 1.Fracturing technology
After the completion of, cleansing medium is passed through, closes cooling drain pipe 12, cleansing medium enters in cylinder body 1, closes afterwards on cleaning pipe 6
Stop valve, turn on the power end, and for piston 2 while moving reciprocatingly, matching purge medium inside cylinder body 1 to clearing up.This
Invention need not take cylinder body 1 apart and cleaning to its inside can be achieved, and save manpower and time cost, improve pressure break efficiency,
Extend the service life of fracturing pump.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (5)
1. a kind of fluid end of fracturing pump, including cylinder body (1) and piston rod (3), one end activity of the piston rod (3) runs through cylinder
One end face of body (1) and the piston (2) being connected with inside cylinder body (1), the other end of piston rod (3) and moving for fracturing pump
Power end connects；Charging aperture and discharge gate are provided with cylinder body (1), is provided with inlet valve (8) above charging aperture, cylinder body (1) passes through
Charging aperture connects with feed pipe (9), is provided with dump valve (7) above discharge gate, cylinder body (1) passes through discharge gate and drainage conduit (10)
Connection, it is characterised in that also including main feed tube (4), the main feed tube (4) is connected with cleaning pipe (6), the cleaning pipe
(6) with being connected inside cylinder body (1).
2. a kind of fluid end of fracturing pump according to claim 1, it is characterised in that in cleaning pipe (6) and main feed tube (4)
The cooling feed tube (5) of main feed tube (4) is provided perpendicular on main feed tube (4) between entrance, the cleaning pipe (6) is flat
Row is arranged on the coolant jacket (11) on the outside of cylinder body (1), the coolant jacket in cooling feed tube (5), cooling feed tube (5) connection
(11) cooling drain pipe (12) is provided with.
3. a kind of fluid end of fracturing pump according to claim 2, it is characterised in that the cleaning manages (6) and cools down out liquid
Stop valve is provided with pipe (12).
4. a kind of fluid end of fracturing pump according to claim 2, it is characterised in that cleaning pipe (6) and cooling feed tube (5)
Between main feed tube (4) in be provided with flow-stopping plate (14) and sealing gasket (13), flow-stopping plate (14) upper end and main feed tube
(4) inwall is hinged, and lower end contacts with sealing gasket (13).
5. the fluid end of a kind of fracturing pump according to claim 4, it is characterised in that the flow-stopping plate (14) passes through spring
Hinge and the inwall of main feed tube (4) are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727909.0A CN107387389A (en) | 2017-08-23 | 2017-08-23 | A kind of fluid end of fracturing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727909.0A CN107387389A (en) | 2017-08-23 | 2017-08-23 | A kind of fluid end of fracturing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387389A true CN107387389A (en) | 2017-11-24 |
Family
ID=60354233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710727909.0A Pending CN107387389A (en) | 2017-08-23 | 2017-08-23 | A kind of fluid end of fracturing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387389A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2691757B3 (en) * | 1992-05-29 | 1994-08-26 | Kremlin | Device for cleaning the piston rod of a pump. |
| CN2668890Y (en) * | 2003-12-25 | 2005-01-05 | 上海化工研究院 | High-temperature high-pressure reciprocating pump |
| CN200946558Y (en) * | 2006-08-17 | 2007-09-12 | 青岛绿科汽车燃气开发有限公司 | Novel hydraulic drive natural gas reciprocating compressor |
| CN101053861A (en) * | 2006-04-14 | 2007-10-17 | 大日本网目版制造株式会社 | Injection pump, base plate processing device and base plate processing method |
| CN206309581U (en) * | 2016-12-23 | 2017-07-07 | 中检集团中原农食产品检测（河南）有限公司 | A kind of self-stripping unit of liquid chromatograph infusion pump |
| CN207145213U (en) * | 2017-08-23 | 2018-03-27 | 四川达灿石油设备有限公司 | The fluid end assembly of fracturing device |
-
2017
- 2017-08-23 CN CN201710727909.0A patent/CN107387389A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2691757B3 (en) * | 1992-05-29 | 1994-08-26 | Kremlin | Device for cleaning the piston rod of a pump. |
| CN2668890Y (en) * | 2003-12-25 | 2005-01-05 | 上海化工研究院 | High-temperature high-pressure reciprocating pump |
| CN101053861A (en) * | 2006-04-14 | 2007-10-17 | 大日本网目版制造株式会社 | Injection pump, base plate processing device and base plate processing method |
| CN200946558Y (en) * | 2006-08-17 | 2007-09-12 | 青岛绿科汽车燃气开发有限公司 | Novel hydraulic drive natural gas reciprocating compressor |
| CN206309581U (en) * | 2016-12-23 | 2017-07-07 | 中检集团中原农食产品检测（河南）有限公司 | A kind of self-stripping unit of liquid chromatograph infusion pump |
| CN207145213U (en) * | 2017-08-23 | 2018-03-27 | 四川达灿石油设备有限公司 | The fluid end assembly of fracturing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20171124 |