CN203783832U - Fracturing pump system and fracturing truck - Google Patents
Fracturing pump system and fracturing truck Download PDFInfo
- Publication number
- CN203783832U CN203783832U CN201320883597.XU CN201320883597U CN203783832U CN 203783832 U CN203783832 U CN 203783832U CN 201320883597 U CN201320883597 U CN 201320883597U CN 203783832 U CN203783832 U CN 203783832U
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- oil
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- fracturing
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Abstract
The utility model discloses a fracturing pump system and a fracturing truck. In the fracturing pump system, a first conveying mechanism and a second conveying mechanism respectively comprise an oil cylinder, a pressure cylinder and a flow distribution valve; each flow distribution valve comprises a first channel, a second channel and a third channel, the first end of the first channel, the first end of the second channel and the first end of the third channel of each flow distribution valve are connected, a suction valve is arranged in each second channel, and a discharge valve is arranged in each third channel; the stretching-out end of a piston rod of each oil cylinder is provided with a piston body, each piston body is movably arranged in the corresponding pressure cylinder, and the outlet of each pressure cylinder is connected to the second end of the corresponding first channel; an engine is used for driving an oil pump; a control valve set is used for controlling oil inlet and return states of the oil cylinders. By the implementation of the fracturing pump system, the stroke can be effectively enlarged, frequency of stroke can be reduced, the service life of quick-wear parts is prolonged, output pressure is effectively increased, the covering range of flow is effectively enlarged, structural complexity is effectively reduced, cost is effectively saved, and the requirements for lubricating and cooling are effectively lowered.
Description
Technical field
The utility model relates to fracturing unit truck technical field, particularly a kind of fracturing pump system and fracturing unit truck.
Background technique
Pressing crack construction operation is one of important means of transformation oil-gas reservoir, for low-permeability oil gas well, generally need to 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, and its effect is the fracturing fluid that injects high pressure, large discharge capacity in stratum, and stratum is pressed off, supporting material (as fracturing sand) is clamp-oned to 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, fluid torque converter, transmission shaft and the fracturing pump etc. on chassis, in the course of the work, after diesel engine starts, after fluid torque converter speed change, bending moment, drive fracturing pump to rotate by transmission shaft, to realize fracturing work.
In prior art, fracturing pump as conveying equipment generally adopts curved shaft type plunger pump, Fig. 1 shows the structural representation of this curved shaft type plunger pump, as shown in the figure, this curved shaft type plunger pump 1' comprises 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 plunger 13' are arranged in a side of bent axle 11', one end of multiple plunger 13' can be respectively moves around in fluid end (shown in figure but do not mark), multiple connecting rod 12' are arranged between the other end and bent axle 11' of multiple plunger 13', like this in the time that bent axle 11' rotates, drivening rod 12' is made to crank rod movement, connecting rod 12' and then drive plunger 13' reciprocating (being similar to the motion of engine crankshaft and piston), working medium (fracturing fluid) is sucked and continuous High voltage output thereby realize by fluid end, to carry out fracturing work.
In above-mentioned curved shaft type plunger pump, stroke shorter (as five cylinder formula plunger pump strokes are about 200mm), often, plunger action is frequent in commutation, and the life-span of easily damaged parts is short, and for example, only have tens hours the working life of the valve seat of fluid end, valve and valve rubber etc.; In addition, the delivery pressure of this curved shaft type plunger pump, the coverage area of flow are narrower, if will improve coverage area, need to change the fluid end of different cylinder diameters; In addition, plunger is in the time of frequent commutation fast, and fracturing fluid not yet fully sucks and discharge, and causes suction efficiency not high, causes working efficiency on the low side; In addition, in fracturing pump, integrated installation has casing and the pedestal etc. of bent axle, power input gear, connecting rod, fluid end, complex structure, and manufacture cost is high, and inconvenience is safeguarded in dismounting; In addition, power input gear is done high-speed overload rotation, to lubrication and cooling require highly, need lubrication system and the corresponding cooling system of layout complexity.
Therefore, how improving for existing above-mentioned deficiency and defect, to more adapt to oil and gas development needs, is those skilled in the art's technical problems urgently to be resolved hurrily.
Model utility content
In view of this, one of the purpose of this utility model is to provide a kind of fracturing pump system, effectively to increase stroke, to reduce jig frequency, improve the working life of easily damaged parts, effectively increase the coverage area of delivery pressure, flow, effectively improve suction efficiency, effectively reduce structural complexity, cost-saving, and effectively reduce the requirement of lubrication and cooling.
Particularly, described fracturing pump system comprises motor, oil pump, control valve group, the first conveying equipment and second conveyor structure, wherein: described the first conveying equipment and described second conveyor structure include oil cylinder, pressurized cylinder and flow-distributing valve; Described flow-distributing valve comprises first passage, second channel and third channel, and the first end of described first passage, described second channel and described third channel is connected, and in described second channel, is provided with suction valve, in described third channel, is provided with expulsion valve; The piston rod external part of described oil cylinder is provided with cock body, and described cock body is arranged in described pressurized cylinder movably, and the outlet of described pressurized cylinder is connected in the second end of described first passage; Described motor is used for driving described oil pump; Described control valve group is connected between described oil pump and described the first conveying equipment, described second conveyor structure, for controlling the oil inlet and oil return state of oil cylinder in described the first conveying equipment oil cylinder and described second conveyor structure.
Further, described fracturing pump system also comprises the 3rd conveying equipment, and described the 3rd conveying equipment comprises oil cylinder, pressurized cylinder and flow-distributing valve; Described control valve group is also for controlling the oil inlet and oil return state of described the 3rd conveying equipment oil cylinder.
Further, the pressurized cylinder in described the first conveying equipment is in the time discharging state, and the pressurized cylinder in described second conveyor structure is in suction condition.
Further, in described the first conveying equipment, described second conveyor structure and described the 3rd conveying equipment, the pressurized cylinder of one of them in discharging when state, remaining two of the pressurized cylinder of one of them is in suction condition, and the pressurized cylinder of another in remaining two is in standby condition.
Further, described motor is multiple, and described oil pump is multiple, and each motor is used for driving at least one oil pump.
Further, the rod chamber of the oil cylinder of each conveying equipment is communicated with successively; Described control valve group is used for the oil inlet and oil return state of the rodless cavity of controlling each oil cylinder.
Further, described cock body comprises the plunger that the piston rod external part of described oil cylinder forms and the piston head that is connected in described plunger front end, and 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, and in described pressurized cylinder, is provided with stuffing box gland, and described plunger and described stuffing box gland are sealed and matched.
The second object of the present utility model is to provide a kind of fracturing unit truck, effectively to reduce manufacture cost and the production difficulty of fracturing unit truck, effectively improves working performance, 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 utility model, engine-driving oil pump supply pressure oil, under the control of control valve group, oil cylinder in the first conveying equipment and second conveyor structure is made fore and aft motion successively, and then realize corresponding pressurized cylinder from the first passage suction fracturing fluid of flow-distributing valve or discharge fracturing fluid from the second channel of flow-distributing valve, thereby realize of the fracturing fluid continuous conveying, compared with prior art, because the stroke of oil cylinder and pressurized cylinder is larger, for example, more than the trip is easy to reach 1m, thereby can effectively increase stroke, reduce jig frequency, commutation number of times while reducing operation, underspeed, can effectively improve associated components (as pressurized cylinder like this, oil cylinder and sealed member etc.) working life, in addition, because the stroke of pressurized cylinder is larger, fracturing fluid is discharged after fully sucking again, and has improved suction efficiency, thereby has improved working efficiency, in addition, it is stressed that oil cylinder and piston rod thereof are two power bars, thereby can effectively improve delivery pressure and flow, and each conveying equipment can adopt respectively the oil cylinder of different cylinder diameters and the pressurized cylinder of different cylinder diameters to cooperatively interact, realizing the multiple discharge capacity requirement under different pressures, increase like this coverage area of delivery pressure, flow, in addition, the arrangement of motor, oil pump and control valve group is comparatively flexible, and each conveying equipment simple in structure had both been convenient to reduce costs, and is also convenient to dismounting and safeguards, in addition, oil cylinder work time is low-speed rectilinear movement, lubrication and cooling is required lower, thereby without lubrication system and the corresponding cooling system of configuration structure complexity.
In the optional scheme of one, can adopt three conveying equipments, to realize of the fracturing fluid continuous conveying simultaneously; On this basis, the pressurized cylinder in the first conveying equipment is in the time discharging state, and the pressurized cylinder in second conveyor structure is in suction condition, and the pressurized cylinder in the 3rd conveying equipment is in standby condition; Can realize so of the fracturing fluid stable, conveying continuously.
In the optional scheme of one, cock body comprises the plunger that the piston rod external part of oil cylinder forms and the piston head that is connected in plunger front end, and this piston head coordinates with the inner wall sealing of pressurized cylinder, contributes to like this to improve the delivery pressure of pressurized cylinder; On this basis, this piston head is connected with the front end of plunger by cassette joint, is convenient to like this dismounting and the replacing of piston head.
Fracturing unit truck of the present utility model has above-mentioned fracturing pump system, thereby can effectively reduce manufacture cost and the production difficulty of fracturing unit truck, can effectively improve working performance, operating efficiency and maintainability simultaneously.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of typical curved shaft type plunger pump in prior art;
The theory of constitution schematic diagram of a kind of fracturing pump system that Fig. 2 provides for the utility model embodiment one;
The theory of constitution schematic diagram of a kind of fracturing pump system that Fig. 3 provides for other embodiments two of the utility model;
The theory of constitution schematic diagram of a kind of fracturing pump system that Fig. 4 provides for other embodiments three of the utility model;
Fig. 5 is the structural representation of piston head and Placement thereof in Fig. 2 and Fig. 4;
Primary component symbol description in figure:
1 motor
2 oil pumps
3 control valve groups
4 oil cylinders
5 pressurized cylinders
6 flow-distributing valves
8 hydraulic oil containers
41 piston rods
42 rod chambers
43 plungers
44 piston heads
45 cassette joints
51 stuffing box glands
61 first passages
62 second channels
63 third channels
64 expulsion valves
65 suction valves
Embodiment
It should be pointed out that in this part, the description to concrete structure and description order is only the explanation to specific embodiment, should not be considered as that protection domain of the present utility model is had to any restriction.In addition,, under the situation of not conflicting, the 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 utility model embodiment is elaborated.
Shown in Fig. 2, the utility model embodiment one fracturing pump system can comprise motor 1, oil pump 2, control valve group 3, hydraulic oil container 8, the first conveying equipment and second conveyor structure.
Wherein, the first conveying equipment and second conveyor structure include oil cylinder 4, pressurized cylinder 5 and flow-distributing valve 6; Flow-distributing valve 6 comprises first passage 61, second channel 62 and third channel 63, and first passage 61, second channel 62 and the first end of third channel 63 are connected, and are provided with suction valve 65 in second channel 62, in described third channel 63, is provided with expulsion valve 64; Piston rod 41 external parts of oil cylinder 4 are provided with cock body, and cock body is arranged in pressurized cylinder 5 movably from one end of pressurized cylinder 5, and the outlet of pressurized cylinder 5 is connected in the second end of first passage 61; Motor 1 is for driving oil pump 2; In the first conveying equipment, in oil cylinder 4 and second conveyor structure, the rod chamber 41 of oil cylinder 4 is communicated with, control valve group 3 is connected between oil pump 2 and the first conveying equipment, second conveyor structure, for controlling the rodless cavity oil inlet and oil return state of oil cylinder 4 in the first conveying equipment oil cylinder 4 and second conveyor structure.
In specific implementation process, the clutch end of motor 1 can be in transmission connection with the line shaft of oil pump 2, motor 1 can directly drive oil pump 2, can certainly adopt indirect driving, on the circuit that is in transmission connection between motor 1 and 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 oil outlet of oil pump 2 is connected in the filler opening of control valve group 3, the return opening of control valve group 3 is connected to hydraulic oil container 8, two actuator ports of control valve group 3 are connected to respectively the rodless cavity of two oil cylinders 4, like this by changing the working state of control valve group, can control the oil inlet and oil return state of two oil cylinders 4, for example, control valve group 3 can adopt two position four-way valves or have the three-position four-way valve of Median Function, can control like this rodless cavity of one of them oil cylinder 4 in the time of oil-feed state, another rodless cavity is in oil return state.
In addition, in specific implementation process, the cock body of being located at piston rod 41 external parts of each oil cylinder 4 can adopt various ways, stretches back and forth and then makes pressurized cylinder 5 outlets suck and discharge fracturing fluid as long as can realize cock body in pressurized cylinder 5; In the present embodiment, cock body can comprise the plunger 43 that piston rod 41 external parts of oil cylinder 4 form and the piston head 44 that is connected in plunger 43 front ends, and piston head 44 coordinates with the inner wall sealing of pressurized cylinder 5.
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 flow-distributing valve 6 is external in manifold system (not shown), and wherein, the second channel 62 of each flow-distributing valve 6 is all connected to fracturing fluid inlet opening, and third channel 63 is all connected to fracturing fluid delivery outlet, in the course of the work, motor 1 starts, drive oil pump 2 to turn round, the rodless cavity oil-feed of control valve group 3 one of them oil cylinder 4 of reciprocal control capable of circulation, the rodless cavity oil return of another oil cylinder 4, and then make one of them pressurized cylinder 5 in the time discharging state, another pressurized cylinder 5 is in suction condition, corresponding plunger 43 and piston head 44 thereof will move around in pressurized cylinder 5 like this, thereby make corresponding pressurized cylinder 5 by the second channel 62 of flow-distributing valve 6, first passage 61 is by fracturing fluid suction or by the first passage 61 of flow-distributing valve 6, third channel 63 is by fracturing fluid High voltage output, thereby realize of the fracturing fluid high pressure, continuous wave output, to meet the needs of fracturing work.
Particularly, shown in Fig. 2, in the time of the rodless cavity oil-feed of oil cylinder 4 in the first conveying equipment, piston rod 41 drives plunger 43 and piston head 44 to move right, and pressurizes to pressurized cylinder 5, and expulsion valve 64 is opened, suction valve 65 cuts out, and the fracturing fluid after supercharging is discharged from the second end of third channel 63; Meanwhile, in the first conveying equipment, rod chamber 42 hydraulic oil of oil cylinder 4 flow in the rod chamber 42 of oil cylinder 4 in second conveyor structure, in second conveyor structure, the rodless cavity of oil cylinder 4 is in oil return state, in second conveyor structure, piston rod 41 drives plunger 43 and piston head 44 to be moved to the left, the interior formation negative pressure of pressurized cylinder 5, suction valve 65 is opened, and expulsion valve 64 cuts out, and fracturing fluid is inhaled into from third channel 63; In the time that the oil cylinder 4 in the first conveying equipment and second conveyor structure respectively moves to terminal and need to commutate, by control valve group 3, make the rodless cavity oil-feed of oil cylinder 4 in second conveyor structure, the rodless cavity oil return of oil cylinder 4 in the first conveying equipment, now the first conveying equipment will suck fracturing fluid, second conveyor structure will be discharged fracturing fluid, and so circulation, can realize and suck continuously and discharge.
Compared with prior art, the stroke of oil cylinder 4 and pressurized cylinder 5 is larger, for example, the trip is easy to reach 1m above (stroke of the prior art is only 200mm left and right), thereby can effectively increase stroke, minimizing jig frequency, reduce when operation commutation number of times, underspeed, can effectively improve like this working life of associated components (as pressurized cylinder, oil cylinder and sealed member etc.).In addition, because the stroke of pressurized cylinder 5 is larger, fracturing fluid is discharged after fully sucking again, and has improved suction efficiency, thereby has improved working efficiency.In addition, it is stressed that oil cylinder 4 and piston rod 41 thereof are two power bars, thereby can effectively improve delivery pressure and flow, and the oil cylinder 4 of each conveying equipment can adopt different cylinder diameters, correspondingly, corresponding pressurized cylinder 5 also can adopt different cylinder diameters, oil cylinder 4 cooperatively interacts and can realize the multiple discharge capacity requirement under different pressures with pressurized cylinder 5 thus, has effectively increased the coverage area of delivery pressure, flow; Moreover cock body comprises plunger 43 and piston head 44, plunger 43 can provide good leading role, and piston head 44 forms mobile sealing with pressurized cylinder 5 inwalls, and this arrangement also contributes to improve the delivery pressure of pressurized cylinder 5.In addition, the arrangement of motor 1, oil pump 2 and control valve group is comparatively flexible, and each conveying equipment simple in structure had both been convenient to reduce costs, and is also convenient to dismounting and safeguards; In addition, when oil cylinder 4 is worked, be low-speed rectilinear movement, lubrication and cooling is required lower, thereby without the lubrication 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 adopt following at least one optimized project:
One, suction valve 65 and expulsion valve 63 all can adopt one-way 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, is convenient to like this dismounting and the replacing of piston head 44;
Three, motor 1 and oil pump 2 are multiple, each motor 1 drives at least one oil pump 2, under the prerequisite that meets peak output, the power that each motor is born can effectively reduce like this, thereby, can select common low-powered engine, so greatly improved type selecting scope, correspondingly, the type selecting scope of the hydraulic element such as each oil pump 2, each oil cylinder 4, each pressurized cylinder 5 also can effectively improve, effectively reduce and realize difficulty, be also convenient to realize multiple matching way; In addition, after adopting in this way, each motor 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, the restriction such as special, thereby can effectively reduce costs; In addition, after adopting in this way, if after some motors 1 or oil pump 2 damage, whole drive transfer system still can ensure that fracturing work proceeds a period of time, thereby has effectively improved safety redundancy, has reduced construction party and occur the risk of loss.
It should be noted that, in above-described embodiment one, adopting plunger 43 and piston head 44 to form cock body matches with pressurized cylinder 5, 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 embodiment two shown in Fig. 3, cock body comprises the plunger 43 that piston rod 41 external parts of oil cylinder 4 form, and the inwall of pressurized cylinder 5 is provided with stuffing box gland 51, and sealing is overlapped the first end of 51 proximity booster cylinders 5, this plunger 43 is sealed and matched with sealing cover 51, and this mode also can realize major function of the present utility model.
It should be noted that, in above-described embodiment one, adopt two conveying equipments can realize of the fracturing fluid continuous conveying, but in other embodiments, of the fracturing fluid stable in order to realize, carry continuously, reduce reversing impact, can adopt three and three above conveying equipments, for example, in embodiment three shown in Fig. 4, also comprise the 3rd conveying equipment, the composition of the 3rd conveying equipment and the first conveying equipment, second conveyor structure is 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 equipment, in the 3rd conveying equipment, the rod chamber of oil cylinder 4 is communicated with the rod chamber of oil cylinder 4 in second conveyor structure, like this can be by changing the state of control valve group 3, make pressurized cylinder 5 in the first conveying equipment in the time discharging state, pressurized cylinder 5 in second conveyor structure is in suction condition, pressurized cylinder 5 in the 3rd conveying equipment is in standby condition, further, pressurized cylinder 5 in second conveyor structure is in the time discharging state, pressurized cylinder 5 in the 3rd conveying equipment is in suction condition, pressurized cylinder 5 in the first conveying equipment is in standby condition, further, pressurized cylinder 5 in the 3rd conveying equipment is in the time discharging state, pressurized cylinder 5 in the first conveying equipment is in suction condition, pressurized cylinder 5 in second conveyor structure is in standby condition, move in circles according to above-mentioned steps.It should be noted that, the control valve group 3 that realizes this control function has varied, and the various specific implementations of relevant controlling valve group 3 can, with reference to associated description of the prior art, no longer be launched to describe at this.
It should be noted that, in above-mentioned various embodiment, carry out successively corresponding actions in order to realize better each oil cylinder 4, the rod chamber of each oil cylinder 4 is communicated with successively, but in other embodiments, be not limited to this, the action successively (being the rod chamber of each oil cylinder 4 and the oil inlet and oil return state of rodless cavity) of each oil cylinder 4 can be controlled respectively realization by control valve group 3.
The utility model is other embodiments also provide a kind of fracturing unit truck, is provided with the fracturing pump system described in above-mentioned any embodiment on this fracturing unit truck.From the technique effect of aforementioned fracturing pump system, this fracturing unit truck can effectively reduce manufacture cost and the production difficulty of fracturing unit truck, can effectively improve working performance, operating efficiency and maintainability simultaneously.The specific implementation process of other parts of fracturing unit truck can, referring to the associated description of prior art, hereby not repeat.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a fracturing pump system, is characterized in that, described fracturing pump system comprises motor (1), oil pump (2), control valve group (3), the first conveying equipment and second conveyor structure, wherein:
Described the first conveying equipment and described second conveyor structure include oil cylinder (4), pressurized cylinder (5) and flow-distributing valve (6); Described flow-distributing valve (6) comprises first passage (61), second channel (62) and third channel (63), described first passage (61), described second channel (62) and the first end of described third channel (63) are connected, in described second channel (62), be provided with suction valve (65), in described third channel (63), be provided with expulsion valve (64); Piston rod (41) external part of described oil cylinder (4) is provided with cock body (43), and described cock body (43) is arranged in described pressurized cylinder (5) movably, and the outlet of described pressurized cylinder (5) is connected in the second end of described first passage (61);
Described motor (1) is for driving described oil pump (2); Described control valve group (3) is for controlling the oil inlet and oil return state of oil cylinder (4) in described the first conveying equipment oil cylinder (4) and described second conveyor structure.
2. fracturing pump system as claimed in claim 1, is characterized in that, described fracturing pump system also comprises the 3rd conveying equipment, and described the 3rd conveying equipment comprises oil cylinder (4), pressurized cylinder (5) and flow-distributing valve (6); Described control valve group (3) is also for controlling the oil inlet and oil return state of described the 3rd conveying equipment oil cylinder (4).
3. fracturing pump system as claimed in claim 1, is characterized in that, the pressurized cylinder (5) in described the first conveying equipment is in the time discharging state, and the pressurized cylinder (5) in described second conveyor structure is in suction condition.
4. fracturing pump system as claimed in claim 2, it is characterized in that, in described the first conveying equipment, described second conveyor structure and described the 3rd conveying equipment, the pressurized cylinder (5) of one of them is in the time discharging state, the pressurized cylinder (5) of one of them in remaining two is in suction condition, and the pressurized cylinder (5) of another in remaining two is in standby condition.
5. fracturing pump system as claimed in claim 1, is characterized in that, described motor (1) is multiple, and described oil pump (2) is multiple, and each motor (1) is for driving at least one 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 equipment is communicated with successively; Described control valve group (3) is for controlling the oil inlet and oil return state of rodless cavity of each oil cylinder (4).
7. the fracturing pump system as described in claim 1 to 5 any one, it is characterized in that, described cock body comprises the plunger (43) that piston rod (41) external part of described oil cylinder (4) forms and the piston head (44) that is connected in described plunger (43) front end, and described piston head (44) coordinates 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) is 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, it 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 stuffing box gland (51), described plunger (43) is sealed and matched with described stuffing box gland (51).
10. a fracturing unit truck, is characterized in that, is provided with the fracturing pump system described in claim 1 to 9 any one on described fracturing unit truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883597.XU CN203783832U (en) | 2013-12-30 | 2013-12-30 | Fracturing pump system and fracturing truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883597.XU CN203783832U (en) | 2013-12-30 | 2013-12-30 | Fracturing pump system and fracturing truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783832U true CN203783832U (en) | 2014-08-20 |
Family
ID=51320025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320883597.XU Withdrawn - After Issue CN203783832U (en) | 2013-12-30 | 2013-12-30 | Fracturing pump system and fracturing truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742381A (en) * | 2013-12-30 | 2014-04-23 | 三一重型能源装备有限公司 | Fracturing pump system and fracturing truck |
| CN104265591A (en) * | 2014-09-16 | 2015-01-07 | 三一重型能源装备有限公司 | Fracturing pump system and flow distribution valve thereof |
-
2013
- 2013-12-30 CN CN201320883597.XU patent/CN203783832U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742381A (en) * | 2013-12-30 | 2014-04-23 | 三一重型能源装备有限公司 | Fracturing pump system and fracturing truck |
| CN104265591A (en) * | 2014-09-16 | 2015-01-07 | 三一重型能源装备有限公司 | Fracturing pump system and flow distribution valve thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160525 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |