CN103742381B - Fracturing pump system and fracturing unit truck - Google Patents
Fracturing pump system and fracturing unit truck Download PDFInfo
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- CN103742381B CN103742381B CN201310744452.6A CN201310744452A CN103742381B CN 103742381 B CN103742381 B CN 103742381B CN 201310744452 A CN201310744452 A CN 201310744452A CN 103742381 B CN103742381 B CN 103742381B
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Abstract
The invention discloses a kind of fracturing pump system and fracturing unit truck. In this fracturing pump system, the first conveying mechanism and second conveyor structure include oil cylinder, pressurized cylinder and flat valve; Flat valve comprises first passage, second channel and third channel, and the first end of first passage, second channel and third channel is connected, and is provided with inlet valve in second channel, is provided with dump valve in third channel; The piston rod external part of oil cylinder is provided with cock body, and cock body is arranged in pressurized cylinder movably, and the outlet of pressurized cylinder is connected in the second end of first passage; Engine is used for driving oil pump; Control valve group is for controlling the oil inlet and oil return state of each oil cylinder. Implement the present invention, can effectively increase stroke, reduce jig frequency, improve service life of consumable accessory, effectively increase the coverage of output pressure, flow, effectively reduce structural complexity, cost-saving, and effectively reduce the requirement to lubrication and cooling.
Description
Technical field
The present invention relates to fracturing unit truck technical field, particularly a kind of fracturing pump system and fracturing unit truck.
Background technology
Pressing crack construction operation is one of important means of transformation oil-gas reservoir, for low-permeability oil gas well, generally needsTo just can reach by means of fracturing work the object of stable yields and volume increase. Fracturing unit truck is the capital equipment of pressing crack construction,Its effect is the fracturing fluid that injects high pressure, large discharge capacity in stratum, stratum is pressed off, supporting material (asFracturing sand) clamp-on crack, to strengthen in-place permeability, increase the mobility of oil gas, improve the rate of oil and gas recovery.
At present, common fracturing unit truck generally comprises chassis and is arranged at Diesel engine, the fluid power on chassisTorque-converters, power transmission shaft and fracturing pump etc., in the course of the work, after Diesel engine starts, through hydraulic moment changeableAfter device speed change, bending moment, drive fracturing pump to rotate by power transmission shaft, to realize fracturing work.
In prior art, generally adopt crank type plunger displacement pump as the fracturing pump of conveying mechanism, Fig. 1 showsThe structural representation of this crank type plunger displacement pump, as shown in the figure, this crank type plunger displacement pump 1' comprise bent axle 11',Multiple connecting rod 12' and multiple plunger 13' etc., the two ends of bent axle 11' are provided with power input gear, multiple plungers13' is arranged in a side of bent axle 11', one end of multiple plunger 13' can be respectively at fluid end (shown in figure but notMark) in move around, multiple connecting rod 12' are arranged between the other end and bent axle 11' of multiple plunger 13',In the time that bent axle 11' rotates, drivening rod 12' is made to crank rod movement like this, connecting rod 12' and then actuation plunger13' reciprocating (being similar to the motion of engine crankshaft and piston), thus realize by fluid end workMake medium (fracturing fluid) and suck also High voltage output continuously, to carry out fracturing work.
In above-mentioned crank type plunger displacement pump, stroke shorter (as five cylinder formula plunger displacement pump strokes are about 200mm), changesTo often, plunger action is frequent, and the life-span of consumable accessory is short, for example, and the valve seat of fluid end, valve and valve glueOnly have tens hours the service life of skin etc.; In addition, the output pressure of this crank type plunger displacement pump, flowCoverage is narrower, if will improve coverage, needs to change the fluid end of different cylinder diameters; In addition, plunger existsWhen frequent commutation fast, fracturing fluid not yet fully sucks and discharges, and causes suction efficiency not high, causes workEfficiency is on the low side; In addition, integrated installation has bent axle, power input gear, connecting rod, fluid end in fracturing pumpCasing and pedestal etc., complex structure, manufacturing cost is high, and inconvenience is safeguarded in dismounting; In addition, power input gearDo high-speed overload rotation, to lubrication and cooling require highly, need the lubricating system of arrangement complexity and rightThe cooling system of answering.
Therefore, how to improve for existing above-mentioned deficiency and defect, to more adapt to oil and gas developmentNeeding, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, one of object of the present invention is to provide a kind of fracturing pump system, with effectively increase stroke,Reduce jig frequency, improve the service life of consumable accessory, effectively increase the coverage of output pressure, flow, haveEffect improves suction efficiency, effectively reduces structural complexity, cost-saving, and effectively reduces lubrication and coolingRequirement.
Particularly, described fracturing pump system comprises engine, oil pump, control valve group, the first conveying mechanismWith second conveyor structure, wherein: described the first conveying mechanism and described second conveyor structure include oil cylinder,Pressurized cylinder and flat valve; Described flat valve comprises first passage, second channel and third channel, described firstThe first end of passage, described second channel and described third channel is connected, and in described second channel, is provided with suctionValve, is provided with dump valve in described third channel; The piston rod external part of described oil cylinder is provided with cock body, described plugBody is arranged in described pressurized cylinder movably, and the outlet of described pressurized cylinder is connected in of described first passageTwo ends; Described engine is used for driving described oil pump; Described control valve group is connected in described oil pump and describedBetween one conveying mechanism, described second conveyor structure, for controlling described the first conveying mechanism oil cylinder and instituteState the oil inlet and oil return state of oil cylinder in second conveyor structure.
Further, described fracturing pump system also comprises the 3rd conveying mechanism, and described the 3rd conveying mechanism comprisesOil cylinder, pressurized cylinder and flat valve; Described control valve group is also for controlling described the 3rd conveying mechanism oil cylinderOil inlet and oil return state.
Further, the pressurized cylinder in described the first conveying mechanism is in the time discharging state, and described second carriesPressurized cylinder in mechanism is in suction condition.
Further, in described the first conveying mechanism, described second conveyor structure and described the 3rd conveying mechanism,The pressurized cylinder of one of them in discharging when state, remain two of the pressurized cylinder of one of them is in suctionState, the pressurized cylinder of another in remaining two is in SBR.
Further, described engine is multiple, and described oil pump is multiple, and each engine is used for being urged toA few oil pump.
Further, the rod chamber of the oil cylinder of each conveying mechanism is communicated with successively; Described control valve group is for controllingThe oil inlet and oil return state of the rodless cavity of each oil cylinder.
Further, described cock body comprises the plunger that the piston rod external part of described oil cylinder forms and is connected inThe piston head of described plunger front end, described piston head coordinates with the inner wall sealing of described pressurized cylinder.
Further, described piston head is connected with the front end of described plunger by cassette joint.
Further, described cock body comprises the plunger that the piston rod external part of described oil cylinder forms, described superchargingIn cylinder, be provided with sealing shroud, described plunger and described sealing shroud are sealed and matched.
The second object of the present invention is to provide a kind of fracturing unit truck, with effectively reduce fracturing unit truck manufacturing cost andProduction difficulty effectively improves transaction capabilities, operating efficiency and maintainability simultaneously.
Particularly, on described fracturing unit truck, be provided with the fracturing pump system described in above-mentioned any one.
While adopting fracturing pump system of the present invention, motor driven oil pump supply pressure oil, in control valve groupUnder control, the oil cylinder in the first conveying mechanism and second conveyor structure is made stretching motion successively, so realize rightThe pressurized cylinder of answering sucks fracturing fluid or discharges pressure break from the second channel of flat valve from the first passage of flat valveLiquid, thus realize of the fracturing fluid continuous conveying, compared with prior art, due to the stroke of oil cylinder and pressurized cylinderLarger, for example, more than the trip is easy to reach 1m, thereby can effectively increase stroke, minimizing jig frequency,Reduce when operation commutation number of times, underspeed, can effectively improve like this associated components (as pressurized cylinder,Oil cylinder and seal member etc.) service life; In addition, because the stroke of pressurized cylinder is larger, fracturing fluid is through fillingAfter dividing suction, discharge again, improved suction efficiency, thereby improved operating efficiency; In addition, oil cylinder and work thereofIt is stressed that stopper rod is two power bars, thereby can effectively improve output pressure and flow, and each conveying mechanism is passableAdopt respectively the oil cylinder of different cylinder diameters and the pressurized cylinder of different cylinder diameters to cooperatively interact, to realize under different pressuresMultiple discharge capacity requirement, increased like this coverage of output pressure, flow; In addition, engine, oilThe arrangement of pump and control valve group is comparatively flexible, and each conveying mechanism simple in structure had both been convenient to reduce costs,Also being convenient to dismounting safeguards; In addition, when oil cylinder work, be low-speed rectilinear movement, lower to lubrication and cooling requirement,Thereby without the lubricating system of configuration structure complexity and corresponding cooling system.
In the optional scheme of one, can adopt three conveying mechanisms simultaneously, of the fracturing fluid continuous to realizeCarry; On this basis, the pressurized cylinder in the first conveying mechanism is in discharging when state, second conveyor structureIn pressurized cylinder in suction condition, the pressurized cylinder in the 3rd conveying mechanism is in SBR; Like this canRealize of the fracturing fluid stable, conveying continuously.
In the optional scheme of one, cock body comprises plunger and the connection that the piston rod external part of oil cylinder formsIn the piston head of plunger front end, this piston head coordinates with the inner wall sealing of pressurized cylinder, contributes to like this to improve to increaseThe output pressure of cylinder pressure; On this basis, this piston head is connected with the front end of plunger by cassette joint, thisSample is convenient to dismounting and the replacing of piston head.
Fracturing unit truck of the present invention has above-mentioned fracturing pump system, thereby can effectively reduce the manufacture of fracturing unit truckCost and production difficulty, can effectively improve transaction capabilities, operating efficiency and maintainability simultaneously.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, of the present invention showingMeaning property embodiment and explanation thereof are used for explaining the present invention, do not form inappropriate limitation of the present invention. At accompanying drawingIn:
Fig. 1 is the structural representation of typical crank type plunger displacement pump in prior art;
The theory of constitution schematic diagram of a kind of fracturing pump system that Fig. 2 provides for the embodiment of the present invention one;
The theory of constitution schematic diagram of a kind of fracturing pump system that Fig. 3 provides for other embodiments of the invention two;
The theory of constitution schematic diagram of a kind of fracturing pump system that Fig. 4 provides for other embodiments of the invention three;
Fig. 5 is the structural representation of piston head and connected mode thereof in Fig. 2 and Fig. 4;
Main element symbol description in figure:
1 engine
2 oil pumps
3 control valve groups
4 oil cylinders
5 pressurized cylinders
6 flat valves
8 hydraulic oil containers
41 piston rods
42 rod chambers
43 plungers
44 piston heads
45 cassette joints
51 sealing shrouds
61 first passages
62 second channels
63 third channels
64 dump valves
65 inlet valves
Detailed description of the invention
It should be pointed out that in this part, the description to concrete structure and description order is only saying specific embodimentBright, should not be considered as that protection scope of the present invention is had to any restriction. In addition, under the situation of not conflicting,Feature in embodiment and embodiment in this part can combine mutually.
Please refer to Fig. 2 to Fig. 5, below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated.
Shown in Fig. 2, the fracturing pump system of the embodiment of the present invention one can comprise engine 1, oil pump 2,Control valve group 3, hydraulic oil container 8, the first conveying mechanism and second conveyor structure.
Wherein, the first conveying mechanism and second conveyor structure include oil cylinder 4, pressurized cylinder 5 and flat valve 6;Flat valve 6 comprises first passage 61, second channel 62 and third channel 63, first passage 61, second logicalRoad 62 is connected with the first end of third channel 63, is provided with inlet valve 65 in second channel 62, and the described the 3rdIn passage 63, be provided with dump valve 64; Piston rod 41 external parts of oil cylinder 4 are provided with cock body, and cock body is from pressurized cylinderOne end of 5 is arranged in pressurized cylinder 5 movably, and the outlet of pressurized cylinder 5 is connected in of first passage 61Two ends; Engine 1 is for driving oil pump 2; Oil in oil cylinder 4 and second conveyor structure in the first conveying mechanismThe rod chamber 41 of cylinder 4 is communicated with, and control valve group 3 is connected in oil pump 2 and the first conveying mechanism, second conveyorBetween structure, enter for the rodless cavity of controlling oil cylinder 4 in the first conveying mechanism oil cylinder 4 and second conveyor structureOil return state.
In specific implementation process, the clutch end of engine 1 can connect with the line shaft transmission of oil pump 2Connect, engine 1 can directly drive oil pump 2, can certainly adopt indirect driving, at engine 1And on the circuit that is in transmission connection between oil pump 2, transfer case can be set, drive oil pump 2 by transfer case.
In addition, in specific implementation process, the inlet port of oil pump 2 is connected to hydraulic oil container 8, the going out of oil pump 2Hydraulic fluid port is connected in the oil-in of control valve group 3, and the oil return opening of control valve group 3 is connected to hydraulic oil container 8, controlsTwo actuator ports of valve group 3 are connected to respectively the rodless cavity of two oil cylinders 4, like this by changing control valve groupDuty, can control the oil inlet and oil return state of two oil cylinders 4, for example, control valve group 3 can adoptTwo position four-way valves or have the three-position four-way valve of Median Function, can control one of them oil cylinder 4 like thisRodless cavity is in the time of oil-feed state, and another rodless cavity is in oil return state.
In addition, in specific implementation process, be located at the cock body of piston rod 41 external parts of each oil cylinder 4 and can adoptBy various ways, in pressurized cylinder 5, stretch back and forth and then pressurized cylinder 5 outlets are inhaled as long as can realize cock bodyEnter and discharge fracturing fluid; In the present embodiment, cock body can comprise piston rod 41 external parts of oil cylinder 4The plunger 43 forming and be connected in the piston head 44 of plunger 43 front ends, piston head 44 and pressurized cylinder 5Inner wall sealing coordinates.
Principle and the technique effect of the fracturing pump system of above-described embodiment one are described below in conjunction with concrete scene:
In use, each flat valve 6 is external in manifold system (not shown), wherein, and each flowThe second channel 62 of valve 6 is all connected to fracturing fluid input port, and third channel 63 is all connected to fracturing fluid delivery outlet;In the course of the work, engine 1 starts, and drives oil pump 2 to turn round, control valve group 3 reciprocal control capable of circulationThe rodless cavity oil-feed of one of them oil cylinder 4, the rodless cavity oil return of another oil cylinder 4, and then make one of themPressurized cylinder 5 is in discharging when state, and another pressurized cylinder 5 is in suction condition, the plunger 43 of correspondence like thisAnd piston head 44 will move around in pressurized cylinder 5, thereby make corresponding pressurized cylinder 5 by flat valve 6Second channel 62, first passage 61 fracturing fluid is sucked or first passage 61 by flat valve 6,Third channel 63 is fracturing fluid High voltage output, thereby realizes of the fracturing fluid high pressure, continuous wave output, to meet pressureSplit the needs of operation.
Particularly, shown in Fig. 2, in the time of the rodless cavity oil-feed of oil cylinder 4 in the first conveying mechanism, pistonBar 41 drives plunger 43 and piston head 44 to move right, and pressurizes to pressurized cylinder 5, and dump valve 64 is opened,Inlet valve 65 cuts out, and the fracturing fluid after supercharging is discharged from the second end of third channel 63; Meanwhile,In one conveying mechanism, rod chamber 42 hydraulic oil of oil cylinder 4 flow into the rod chamber of oil cylinder 4 in second conveyor structureIn 42, in second conveyor structure the rodless cavity of oil cylinder 4 in oil return state, piston rod in second conveyor structure41 drive plunger 43 and piston head 44 to be moved to the left, the interior formation negative pressure of pressurized cylinder 5, and inlet valve 65 is opened,Dump valve 64 cuts out, and fracturing fluid is inhaled into from third channel 63; When the first conveying mechanism and second conveyorWhen oil cylinder 4 in structure respectively moves to terminal and need to commutate, by control valve group 3, make in second conveyor structureThe rodless cavity oil-feed of oil cylinder 4, the rodless cavity oil return of oil cylinder 4, now the first conveyer in the first conveying mechanismStructure will suck fracturing fluid, and second conveyor structure will be discharged fracturing fluid, and so circulation, can realize continuously and inhalingEnter and discharge.
Compared with prior art, the stroke of oil cylinder 4 and pressurized cylinder 5 is larger, and for example, the trip is easy to reach1m above (stroke of the prior art is only 200mm left and right), thereby can effectively increase stroke, minimizingJig frequency, reduce when operation commutation number of times, underspeed, can effectively improve like this associated components (as increasedCylinder pressure, oil cylinder and seal member etc.) service life. In addition, because the stroke of pressurized cylinder 5 is larger, pressSplit liquid and discharge again after fully sucking, improved suction efficiency, thereby improved operating efficiency. In addition, oilIt is stressed that cylinder 4 and piston rod 41 thereof are two power bars, thereby can effectively improve output pressure and flow, andThe oil cylinder 4 of each conveying mechanism can adopt different cylinder diameters, and correspondingly, corresponding pressurized cylinder 5 also can adoptDifferent cylinder diameters, oil cylinder 4 and the pressurized cylinder 5 multiple discharge capacity that can realize under different pressures that cooperatively interacts is wanted thusAsk, effectively increased the coverage of output pressure, flow; Moreover cock body comprises plunger 43 and piston head44, plunger 43 can provide good guide effect, and piston head 44 forms movement with pressurized cylinder 5 inwallsFormula sealing, this arrangement also contributes to improve the output pressure of pressurized cylinder 5. In addition, engine 1,The arrangement of oil pump 2 and control valve group is comparatively flexible, and each conveying mechanism simple in structure had both been convenient to reduceCost, is also convenient to dismounting and safeguards; In addition, when oil cylinder 4 is worked, be low-speed rectilinear movement, to lubrication and coolingRequire lower, thereby without the lubricating system of configuration structure complexity and corresponding cooling system.
It should be noted that, in specific implementation process, the fracturing pump system of above-described embodiment one can also be adoptedWith following at least one prioritization scheme:
One, inlet valve 65 and dump valve 63 all can adopt check valve;
Two,, in conjunction with shown in Fig. 5, piston head 44 is connected with the front end of plunger 43 by cassette joint 45, thisSample is convenient to dismounting and the replacing of piston head 44;
Three, engine 1 and oil pump 2 are multiple, and each engine 1 drives at least one oil pump 2, thisSample is under the prerequisite that meets peak power, and the power that each engine is born can effectively reduce, thereby, canTo select common low-powered engine, so greatly improve type selecting scope, correspondingly, each oil pump 2,The type selecting scope of the Hydraulic Elements such as each oil cylinder 4, each pressurized cylinder 5 also can effectively improve, and effectively reducesRealize difficulty, be also convenient to realize multiple matching way; In addition, after adopting in this way, each engine 1,Each oil pump 2, each oil cylinder 4 and each pressurized cylinder 5 etc. are easy to obtain, and implement easily, without being subject to import, specialWith waiting restriction, thereby can effectively reduce costs; In addition, after adopting in this way, if some engines1 or after oil pump 2 damages, whole drive transfer system still can ensure that fracturing work proceeds a period of time,Thereby effectively improved safety redundancy, reduce construction party the risk of losing has occurred.
It should be noted that, in above-described embodiment one, adopt plunger 43 and piston head 44 to form cock body and increasingCylinder pressure 5 matches, but in other embodiments, the mode that pressurized cylinder 5 coordinates with cock body is not limited to this,Can also adopt other modes, for example, in the embodiment bis-shown in Fig. 3, cock body comprises the piston of oil cylinder 4The plunger 43 that bar 41 external parts form, the inwall of pressurized cylinder 5 is provided with sealing shroud 51, and sealing cover 51 is contiguousThe first end of pressurized cylinder 5, this plunger 43 is sealed and matched with sealing cover 51, and this mode also can realize thisThe major function of invention.
It should be noted that, in above-described embodiment one, adopt two conveying mechanisms can realize of the fracturing fluid companyContinuous conveying, but in other embodiments, in order to realize of the fracturing fluid stable, conveying continuously, reduce commutation punchingHit, can adopt three and three above conveying mechanisms, for example, in the embodiment tri-shown in Fig. 4, alsoComprise the 3rd conveying mechanism, the composition of the 3rd conveying mechanism and the first conveying mechanism, second conveyor structure are identical,Correspondingly, the 3rd actuator port of control valve group 3 is connected to the rodless cavity of oil cylinder 4 in the 3rd conveying mechanism, theIn three conveying mechanisms, the rod chamber of oil cylinder 4 is communicated with the rod chamber of oil cylinder 4 in second conveyor structure, like this canWith by the state that changes control valve group 3, make pressurized cylinder 5 in the first conveying mechanism in discharging shapeWhen state, the pressurized cylinder 5 in second conveyor structure is in suction condition, the pressurized cylinder 5 in the 3rd conveying mechanismIn SBR, further, the pressurized cylinder 5 in second conveyor structure is in discharging when state, thePressurized cylinder 5 in three conveying mechanisms is in suction condition, and the pressurized cylinder 5 in the first conveying mechanism is in preparingState, further, the pressurized cylinder 5 in the 3rd conveying mechanism is in discharging when state, the first conveyerPressurized cylinder 5 in structure is in suction condition, and the pressurized cylinder 5 in second conveyor structure, in SBR, is pressedMove in circles according to above-mentioned steps. It should be noted that, the control valve group 3 that realizes this control function has manyKind various, the various specific implementations of relevant controlling valve group 3 can be with reference to associated description of the prior art,No longer launch to describe at this.
It should be noted that, in above-mentioned various embodiment, carry out successively phase in order to realize better each oil cylinder 4Should move, the rod chamber of each oil cylinder 4 is communicated with successively, but in other embodiments, is not limited to this, eachThe action successively (being the rod chamber of each oil cylinder 4 and the oil inlet and oil return state of rodless cavity) of oil cylinder 4 can be by controllingValve group 3 is controlled respectively realization.
Other embodiments of the invention also provide a kind of fracturing unit truck, are provided with above-mentioned any reality on this fracturing unit truckExecute the described fracturing pump system of example. From the technique effect of aforementioned fracturing pump system, this fracturing unit truck can haveEffect reduces manufacturing cost and the production difficulty of fracturing unit truck, can effectively improve transaction capabilities, operating efficiency simultaneouslyAnd maintainability. The specific implementation process of other parts of fracturing unit truck can be referring to the associated description of prior art, herebyDo not repeat.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, not all at thisWithin bright spirit and principle, any amendment of doing, be equal to replacement, improvement etc., all should be included in thisWithin bright protection domain.
Claims (10)
1. a fracturing pump system, is characterized in that, described fracturing pump system comprises engine(1), oil pump (2), control valve group (3), the first conveying mechanism and second conveyor structure, itsIn: described the first conveying mechanism and described second conveyor structure include oil cylinder (4), pressurized cylinderAnd flat valve (6) (5); Described flat valve (6) comprises that first passage (61), second leads toRoad (62) and third channel (63), described first passage (61), described second channel (62)Be connected with the first end of described third channel (63), described second channel is provided with suction in (62)Enter valve (65), in described third channel (63), be provided with dump valve (64); Described oil cylinder (4)Piston rod (41) external part be provided with cock body, described cock body is arranged at described supercharging movablyIn cylinder (5), the outlet of described pressurized cylinder (5) is connected in of described first passage (61)Two ends; Described engine (1) is for driving described oil pump (2); Described control valve group (3)Be used for controlling oil cylinder in described the first conveying mechanism oil cylinder (4) and described second conveyor structure(4) oil inlet and oil return state.
2. fracturing pump system as claimed in claim 1, is characterized in that, described fracturing pumpSystem also comprises the 3rd conveying mechanism, and described the 3rd conveying mechanism comprises oil cylinder (4), pressurized cylinderAnd flat valve (6) (5); Described control valve group (3) is also for controlling described the 3rd conveyerThe oil inlet and oil return state of oil cylinder in structure (4).
3. fracturing pump system as claimed in claim 1, is characterized in that, described first defeatedSend pressurized cylinder (5) in mechanism in the time discharging state, the increasing in described second conveyor structureCylinder pressure (5) is in suction condition.
4. fracturing pump system as claimed in claim 2, is characterized in that, described first defeatedSend in mechanism, described second conveyor structure and described the 3rd conveying mechanism the supercharging of one of themThe pressurized cylinder (5) of one of them in discharging when state, remaining two of cylinder (5) inSuction condition, the pressurized cylinder (5) of another in remaining two is in SBR.
5. fracturing pump system as claimed in claim 1, is characterized in that, described engine(1) be multiple, described oil pump (2) is multiple, and each engine (1) is for being urged toA few oil pump (2).
6. the fracturing pump system as described in claim 1 to 5 any one, is characterized in that,The rod chamber (42) of the oil cylinder (4) of each conveying mechanism is communicated with successively; Described control valve group (3)Be used for the oil inlet and oil return state of the rodless cavity of controlling each oil cylinder (4).
7. the fracturing pump system as described in claim 1 to 5 any one, is characterized in that,Described cock body comprises the plunger (43) that piston rod (41) external part of described oil cylinder (4) formsAnd be connected in the piston head (44) of described plunger (43) front end, described piston head (44)Coordinate with the inner wall sealing of described pressurized cylinder (5).
8. fracturing pump system as claimed in claim 7, is characterized in that, described piston head(44) be connected with the front end of described plunger (43) by cassette joint (45).
9. the fracturing pump system as described in claim 1 to 5 any one, is characterized in that,Described cock body comprises the plunger (43) that piston rod (41) external part of described oil cylinder (4) forms,In described pressurized cylinder (5), be provided with sealing shroud (51), described plunger (43) and described sealing shroud(51) be sealed and matched.
10. a fracturing unit truck, is characterized in that, on described fracturing unit truck, is provided with claim 1To the fracturing pump system described in 9 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310744452.6A CN103742381B (en) | 2013-12-30 | 2013-12-30 | Fracturing pump system and fracturing unit truck |
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| CN201310744452.6A CN103742381B (en) | 2013-12-30 | 2013-12-30 | Fracturing pump system and fracturing unit truck |
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| CN103742381A CN103742381A (en) | 2014-04-23 |
| CN103742381B true CN103742381B (en) | 2016-05-25 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014211964A1 (en) * | 2014-06-23 | 2015-12-24 | Voith Patent Gmbh | pumping device |
| CN104696213B (en) * | 2015-03-02 | 2017-01-25 | 三一石油智能装备有限公司 | Fracturing pump system and fracturing truck |
| CN104727797A (en) * | 2015-03-18 | 2015-06-24 | 烟台杰瑞石油装备技术有限公司 | Fracturing transmission and high-pressure discharging system |
| WO2017031617A1 (en) * | 2015-08-21 | 2017-03-02 | 深圳智慧能源技术有限公司 | Free piston fracturing pump and fracturing equipment vehicle |
| CN105806711A (en) * | 2016-03-11 | 2016-07-27 | 大连理工大学 | Oil-drive-water pressure circulating test system adopting superchargers |
| CN113431541A (en) * | 2020-03-23 | 2021-09-24 | 中国石油化工股份有限公司 | Pulse supercharging device |
| CN114151055B (en) * | 2021-11-16 | 2024-01-23 | 三一石油智能装备有限公司 | Fracturing equipment hydraulic system, control method and fracturing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2500500A1 (en) * | 2005-03-10 | 2006-09-10 | Beijing General Research Institute Of Minning & Metallurgy | Mixing device for oil well fracturing fluid |
| CN202023547U (en) * | 2011-04-29 | 2011-11-02 | 中国矿业大学 | Coal mine underground pulsed hydraulic fracturing equipment |
| CN202560199U (en) * | 2012-04-11 | 2012-11-28 | 河南易安能源科技有限公司 | Fracturing truck used for oilfield or coal-bed gas exploitation |
| US20130306322A1 (en) * | 2012-05-21 | 2013-11-21 | General Electric Company | System and process for extracting oil and gas by hydraulic fracturing |
| CN203783832U (en) * | 2013-12-30 | 2014-08-20 | 三一重型能源装备有限公司 | Fracturing pump system and fracturing truck |
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Effective date of registration: 20170302 Address after: 102206 South Beijing city of Changping District science and Technology Park 31 manufacturing center of Beijing Liu Lu Li Patentee after: 31 petroleum Intelligent Equipment Co., Ltd. Address before: 102206 Changping District City, North Road, Beijing, the 31 Industrial Park Patentee before: SANY HEAVY ENERGY EQUIPMENT CO., LTD. |