CN216788630U - Hydraulic fracturing pump system and fracturing equipment - Google Patents
Hydraulic fracturing pump system and fracturing equipment Download PDFInfo
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- CN216788630U CN216788630U CN202122924809.1U CN202122924809U CN216788630U CN 216788630 U CN216788630 U CN 216788630U CN 202122924809 U CN202122924809 U CN 202122924809U CN 216788630 U CN216788630 U CN 216788630U
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- 230000007246 mechanism Effects 0.000 claims abstract description 80
- 230000008859 change Effects 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000005336 cracking Methods 0.000 abstract description 4
- 206010016256 fatigue Diseases 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 53
- 230000005540 biological transmission Effects 0.000 description 10
- 239000010720 hydraulic oil Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/06—Mobile combinations
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- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
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- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rotary Pumps (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
The utility model provides a hydraulic fracturing pump system and a fracturing device, wherein the hydraulic fracturing pump system comprises an oil pump, a speed change mechanism, a fracturing pump and a plurality of motors, oil outlets of the oil pump are communicated with oil inlets of all the motors, an output shaft of the speed change mechanism is connected with an input shaft of the fracturing pump, and the motors are detachably connected with the speed change mechanism respectively and are suitable for driving an output shaft of the speed change mechanism to rotate. According to the utility model, the motor is arranged on the speed change mechanism to separate the motor from the fracturing pump, so that the larger vibration of the fracturing pump generated by impact load is not directly transmitted to the motor and the hydraulic manifold connected to the motor, thereby reducing the vibration of the motor and the hydraulic manifold, further reducing the risk of fatigue cracking and loosening at the joint of the hydraulic manifold and the motor, reducing the oil leakage of the hydraulic manifold, and avoiding the shutdown accident of the fracturing pump caused by the oil leakage of the hydraulic manifold.
Description
Technical Field
The utility model relates to the technical field of fracturing equipment, in particular to a hydraulic fracturing pump system and fracturing equipment.
Background
At present, hydraulic fracturing equipment pumps hydraulic oil to each motor installed on a fracturing pump by an engine driven oil pump, and the fracturing pump is driven by each motor together to perform fracturing operation. The fracturing pump is of an integral structure, namely the installation position of the motor is integrated with the fracturing pump, so that the motor is installed on the fracturing pump and then forms a whole with the fracturing pump.
However, in the fracturing operation process, the fracturing pump generates large vibration due to impact load, so that a motor mounted on the fracturing pump and a hydraulic rubber tube connected to the motor also generate large vibration, meanwhile, the pressure fluctuation of hydraulic oil in the fracturing pump is large, and the hydraulic rubber tube connected to the motor also generates vibration, so that the connection part of the hydraulic rubber tube and the motor is easy to generate fatigue cracking or loosening, the oil leakage phenomenon of the hydraulic rubber tube is further generated, and the shutdown accident of the fracturing pump is caused.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problems that: how to reduce the vibration of a hydraulic pipe connected to a motor in a hydraulic fracturing pump system.
In order to solve the problems, the utility model provides a hydraulic fracturing pump system which comprises an oil pump, a speed change mechanism, a fracturing pump and a plurality of motors, wherein an oil outlet of the oil pump is communicated with oil inlets of all the motors, an output shaft of the speed change mechanism is connected with an input shaft of the fracturing pump, and the motors are detachably connected with the speed change mechanism respectively and are suitable for driving an output shaft of the speed change mechanism to rotate.
Optionally, the speed change mechanism includes the casing and sets up gear pair in the casing, it is a plurality of the motor respectively with the connection can be dismantled to the casing, gear pair includes gear wheel axle and a plurality of pinion shaft, gear wheel axle's one end is stretched out the casing and with the input shaft of fracturing pump, all the pinion shaft all with gear wheel axle meshes, and is a plurality of gear wheel axle's tip respectively with one the motor is connected.
Alternatively, a plurality of the pinion shafts are arranged uniformly in the circumferential direction of the pinion shaft.
Alternatively, the motors are arranged in pairs on the speed change mechanism, and both ends of the pinion shaft are connected with one of the motors respectively.
Optionally, the speed change mechanism further includes a first bearing disposed in the housing, and two ends of the pinion shaft are connected to the housing through the first bearing, respectively.
Optionally, the speed change mechanism is further provided with a second bearing in the shell, the large gear shaft comprises a gear shaft body and a connecting shaft, two ends of the gear shaft body are respectively connected with the shell through the second bearing, one end of the connecting shaft is connected with one end of the gear shaft body, and the other end of the connecting shaft extends out of the shell and is connected with an input shaft of the fracturing pump.
Optionally, the hydraulic fracturing pump system further comprises a coupler, and an output shaft of the speed change mechanism is connected with an input shaft of the fracturing pump through the coupler.
Optionally, the hydraulic fracturing pump system further comprises a shunting block arranged on the speed change mechanism, the shunting block is provided with a plurality of shunting interfaces and at least one liquid inlet interface, a plurality of oil inlets of the motor are respectively communicated with the shunting interfaces, and the liquid inlet interface of the shunting block is communicated with an oil outlet of the oil pump.
Optionally, the number of the shunting blocks is two, and the two shunting blocks are oppositely arranged on the speed change mechanism.
In order to solve the problems, the utility model also provides fracturing equipment comprising the hydraulic fracturing pump system.
Compared with the prior art, the hydraulic fracturing pump system pumps hydraulic oil to each motor installed on the speed change mechanism through the oil pump, more specifically to the hydraulic motor, the motor drives the speed change mechanism to output torque and rotating speed, and the torque and the rotating speed are transmitted to the fracturing pump, so that the fracturing pump is driven to perform fracturing operation; meanwhile, each motor is detachably connected with the speed change mechanism, namely the motors can be arranged on the speed change mechanism, so that the motors and the fracturing pump can be separately arranged, and large vibration generated by the fracturing pump due to impact load is not directly transmitted to the motors and a hydraulic manifold connected to the motors, so that the vibration of the motors and the hydraulic manifold is reduced, the risk of fatigue cracking and loosening at the joint of the hydraulic manifold and the motors is reduced, the oil leakage of the hydraulic manifold is also reduced, and the accident that the fracturing pump is stopped due to oil leakage of the hydraulic manifold is avoided; moreover, when the motor is arranged on the speed change mechanism, the installation position of the motor does not need to be arranged on the fracturing pump, so that the structure of the fracturing pump is simplified, the motor and the fracturing pump do not need to be assembled together in a limited space, the assembly difficulty of the fracturing pump is reduced, and the convenience of the fracturing pump in later maintenance is also improved; in addition, the hydraulic driving element (namely the motor) is separated from the fracturing execution element (namely the fracturing pump), so that the installation and maintenance of the hydraulic driving element and the fracturing execution element of the hydraulic fracturing pump system are not influenced mutually, the modular design of the hydraulic driving element and the fracturing execution element is facilitated, the fracturing pump can be conveniently selected according to different vehicle types, and the adaptability is high; and because power is reduced and torque is increased through the speed change mechanism before being input into the fracturing pump, the reduction ratio of the gear structure in the power end of the fracturing pump is greatly reduced, the size of the gear structure in the power end of the fracturing pump can be reduced, and the whole volume of the fracturing pump can be further reduced.
Drawings
FIG. 1 is a schematic diagram of a hydraulic fracturing pump system according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a hydraulic fracturing pump system at a variator in an embodiment of the utility model;
FIG. 3 is a schematic cross-sectional view of a variator in an embodiment of the utility model;
FIG. 4 is a schematic structural view of a pinion shaft according to an embodiment of the present invention;
FIG. 5 is a schematic view of the motor and the shifting mechanism assembled together in an embodiment of the present invention;
fig. 6 is a schematic structural view of another view of the motor and the speed change mechanism assembled together according to the embodiment of the present invention.
Description of reference numerals:
1. an oil pump; 2. a speed change mechanism; 21. a housing; 22. a large gear shaft; 221. a gear shaft body; 222. a connecting shaft; 23. a pinion shaft; 24. a first bearing; 25. a second bearing; 3. a motor; 4. a fracturing pump; 5. a coupling; 6. a shunting block; 61. a shunt interface; 62. and a liquid inlet interface.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein.
The Z-axis in the drawings indicates a vertical direction, i.e., an up-down position, and a forward direction of the Z-axis (i.e., an arrow direction of the Z-axis) indicates an upward direction and a reverse direction of the Z-axis indicates a downward direction; the X-axis in the drawing represents the horizontal direction and is designated as the left-right position, and the forward direction of the X-axis represents the left side and the reverse direction of the X-axis represents the right side; the Y-axis in the drawings is represented as a front-rear position, and a forward direction of the Y-axis represents a front side and a reverse direction of the Y-axis represents a rear side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.
Referring to fig. 1, an embodiment of the present invention provides a hydraulic fracturing pump system, including an oil pump 1, a speed change mechanism 2, a fracturing pump 4, and a plurality of motors 3, where an oil outlet of the oil pump 1 is communicated with oil inlets of all the motors 3, an output shaft of the speed change mechanism 2 is connected with an input shaft of the fracturing pump 4, and the plurality of motors 3 are detachably connected with the speed change mechanism 2, and are adapted to drive an output shaft of the speed change mechanism 2 to rotate.
Specifically, the power for driving the oil pump 1 to work comes from a power mechanism of the fracturing equipment, such as an engine, the motor 3 is specifically a hydraulic motor, and the motors 3 are respectively detachably connected with the speed change mechanism 2, that is, the motor 3 is installed on the speed change mechanism 2 and connected with an input shaft of the speed change mechanism 2, after the oil pump 1 pumps hydraulic oil to the motor 3, the motor 3 is driven to work, the motor 3 directly drives the input shaft of the speed change mechanism 2 to rotate so as to drive an output shaft of the speed change mechanism 2 to rotate, so that the output shaft of the speed change mechanism 2 outputs torque and rotation speed, and since the output shaft of the speed change mechanism 2 is connected with the input shaft of the fracturing pump 4, the torque and rotation speed output by the speed change mechanism 2 are transmitted to the fracturing pump 4, and the fracturing pump 4 is driven to perform fracturing operation. That is, in the hydraulic fracturing pump system, the motor 3 is a hydraulic driving element, and the fracturing pump 4 is a fracturing actuator.
In this way, the hydraulic fracturing pump system in the embodiment pumps hydraulic oil to each motor 3 installed on the speed change mechanism 2 through the oil pump 1, more specifically, the hydraulic motor, and the motor 3 drives the speed change mechanism 2 to output torque and rotation speed, and transmits the torque and rotation speed to the fracturing pump 4, so as to drive the fracturing pump 4 to perform fracturing operation; meanwhile, each motor 3 is detachably connected with the speed change mechanism 2, namely the motors 3 can be arranged on the speed change mechanism 2, so that the motors 3 and the fracturing pump 4 can be separately arranged, and the large vibration generated by the fracturing pump 4 due to impact load is not directly transmitted to the motors 3 and a hydraulic manifold connected to the motors 3, so that the vibration of the motors 3 and the hydraulic manifold is reduced, the risk of fatigue cracking or loosening at the joint of the hydraulic manifold and the motors 3 is reduced, the oil leakage of the hydraulic manifold is also reduced, and the accident that the fracturing pump 4 is stopped due to oil leakage of the hydraulic manifold is avoided; moreover, when the motor 3 is arranged on the speed change mechanism 2, the installation position of the motor 3 does not need to be arranged on the fracturing pump 4, so that the structure of the fracturing pump 4 is simplified, the motor 3 and the fracturing pump 4 do not need to be assembled together in a limited space, the assembly difficulty of the fracturing pump 4 is reduced, and the convenience of the fracturing pump 4 in later maintenance is improved; in addition, the hydraulic driving element (namely the motor 3) is separated from the fracturing execution element (namely the fracturing pump 4), so that the installation and maintenance of the hydraulic driving element and the fracturing execution element of the hydraulic fracturing pump system are not affected mutually, the hydraulic driving element and the fracturing execution element are conveniently and respectively subjected to modular design, the fracturing pump 4 is conveniently selected according to different vehicle types, and the adaptability is high; in addition, the power is reduced and increased in torque through the speed change mechanism 2 before being input into the fracturing pump 4, so that the reduction ratio of the gear structure in the power end of the fracturing pump 4 is greatly reduced, the size of the gear structure in the power end of the fracturing pump 4 can be reduced, and the whole volume of the fracturing pump 4 can be further reduced.
Further, the oil inlet of the oil pump 1 is communicated with the oil outlets of all the motors 3.
Therefore, on the basis that the oil outlets of the oil pump 1 are communicated with the oil inlets of all the motors 3, the oil inlets of the oil pump 1 are communicated with the oil outlets of all the motors 3, so that a closed oil path is formed, the hydraulic oil circularly flows in the hydraulic fracturing pump system, and the fracturing pump 4 is driven to continuously operate.
Further, oil inlets of all the motors 3 are communicated, and oil outlets of all the motors 3 are communicated. So, the oil inlet of all motors 3 passes through the pipeline intercommunication and the oil-out also passes through the pipeline intercommunication to form parallelly connected oil circuit between making a plurality of motors 3, thereby can realize all motor 3 fuel feeding when providing hydraulic oil to a motor 3.
Alternatively, as shown in fig. 2 and 5, the speed change mechanism 2 includes a housing 21 and a gear pair disposed in the housing 21, the plurality of motors 3 are detachably connected to the housing 21, the gear pair includes a large gear shaft 22 and a plurality of small gear shafts 23, one end of the large gear shaft 22 extends out of the housing 21 and is connected to the input shaft of the fracturing pump 4, all the small gear shafts 23 are engaged with the large gear shaft 22, and the ends of the plurality of small gear shafts 23 are connected to one motor 3.
In this embodiment, the large gear shaft 22 and the plurality of small gear shafts 23 form a gear pair of the transmission mechanism 2, and the housing 21 supports the gear pair, and the rotational motion output by the motor 3 is transmitted to the fracturing pump 4 through the gear pair. Specifically, the pinion shafts 23 serve as input shafts of the transmission mechanism 2, the bull gear shaft 22 serves as an output shaft of the transmission mechanism 2, and one motor 3 is connected to an end of each pinion shaft 23, and the motor 3 drives the pinion shaft 23 to rotate so as to drive the bull gear shaft 22 to rotate, thereby driving the transmission mechanism 2 to output torque and rotation speed. In this way, the rotary motion output by the motor 3 is transmitted through the large gear shaft 22 and the small gear shaft 23 which form the gear pair, and the structure is simple and easy to realize; the motor 3 is connected with the pinion shaft 23, and the input shaft of the fracturing pump 4 is connected with the bull gear shaft 22, so that the power output by the motor 3 is reduced in speed and increased in torque.
Further, the housing 21 includes a first housing and a second housing, and the first housing and the second housing are symmetrical to each other, and the gear shaft body 221 (described later) of the large gear shaft 22 and the pinion shaft 23 are mounted between the first housing and the second housing, and the assembly of the housing 21 and the transmission mechanism 2 is achieved by aligning mounting hole positions on the first housing and the second housing, and screwing fasteners such as bolts.
Alternatively, as shown in conjunction with fig. 3, the plurality of pinion shafts 23 are uniformly arranged in the circumferential direction of the large gear shaft 22.
Here, the circumferential direction of the large gear shaft 22 refers to a circumferential direction surrounded by the teeth of the large gear shaft 22. The plurality of pinion shafts 23 are arranged around the large gear shaft 22, and the included angles formed by connecting the axes of two adjacent pinion shafts 23 and the axis of the large gear shaft 22 are equal. Thus, the arrangement of the plurality of pinion shafts 23 and the large gear shaft 22 is facilitated, and the stress on the transmission mechanism 2 is more balanced.
Alternatively, as shown in fig. 2 and 6 in combination, the motors 3 are provided in pairs on the speed change mechanism 2, and both ends of the pinion shaft 23 are connected to one motor 3, respectively.
In the embodiment, one pinion shaft 23 is connected to two motors 3, specifically, one end of the pinion shaft 23 is connected to an output shaft of one motor 3, and the other end of the pinion shaft 23 is also connected to an output shaft of one motor 3, that is, two ends of the pinion shaft 23 are respectively connected to the output shafts of the motors 3, and the two motors 3 are respectively located at the front and rear sides of the speed change mechanism 2 (that is, the speed change mechanism 2 is located at two sides in the Y-axis direction in the figure), so that one pinion shaft 23 is driven by the two motors 3 together, thus, two small-power motors 3 can be used to replace one high-power motor 3 to drive the pinion shaft 23 to rotate, and the structural size of the small-power motor 3 is smaller, thereby reducing the size of the motors 3, further reducing the overall size of the motor 3 after being mounted on the speed change mechanism 2, and facilitating the overall mounting.
Alternatively, as shown in fig. 2, the transmission mechanism 2 further includes a first bearing 24 disposed in the housing 21, and both ends of the pinion shaft 23 are connected to the housing 21 through the first bearings 24, respectively.
In this embodiment, the pinion shaft 23 is located in the housing 21 of the speed change mechanism 2, and the two ends of the pinion shaft 23 are respectively sleeved with the first bearings 24; in this manner, the pinion shaft 23 is supported by providing the first bearing 24 to achieve mounting and fixing of the pinion shaft 23 in the housing 21.
Optionally, as shown in fig. 2 and 4, the transmission mechanism 2 further includes a second bearing 25 disposed in the housing 21, the large gear shaft 22 includes a gear shaft body 221 and a connecting shaft 222, two ends of the gear shaft body 221 are respectively connected to the housing 21 through the second bearing 25, one end of the connecting shaft 222 is connected to one end of the gear shaft body 221, and the other end of the connecting shaft 222 extends out of the housing 21 and is connected to the input shaft of the fracturing pump 4.
In this embodiment, the connecting shaft 222 and the gear shaft body 221 are generally an integral structure, that is, the connecting shaft 222 and the gear shaft body 221 are welded, cast or forged to form an integral body which cannot be disassembled; the gear shaft body 221 of the large gear shaft 22 is located in the housing 21 of the speed change mechanism 2, and the two ends of the gear shaft body 221 are respectively sleeved with the second bearings 25, and the gear shaft body 221 is supported by arranging the second bearings 25, so that the large gear shaft 22 is fixedly installed in the housing 21. The connecting shaft 222 of the large gear shaft 22 extends out from the side end of the transmission mechanism 2 in the front-rear direction (i.e., the Y-axis direction in the figure), and meanwhile, the connecting shaft 222 serves as an output shaft of the transmission mechanism 2 and an input shaft of the fracturing pump 4, so that the rotating speed and torque output by the motor 3 are transmitted to the fracturing pump 4 through the speed reduction and torque increase effects of the small gear shaft 23 and the large gear shaft 22 by the connecting shaft 222.
Further, the first bearing 24 is preferably a rolling bearing, and the second bearing 25 is preferably a rolling bearing or a sliding bearing to ensure smoother rotational movement of the pinion shaft 23 and the large gear shaft 22.
Optionally, as shown in fig. 1, the hydraulic fracturing pump system further includes a coupling 5, and an output shaft of the speed change mechanism 2 is connected with an input shaft of the fracturing pump 4 through the coupling 5.
Specifically, the connecting shaft 222 of the large gear shaft 22 is connected with the input shaft of the fracturing pump 4 through the coupling 5. In this way, the coupling 5 is arranged to connect the connecting shaft 222 of the gear shaft 22 with the input shaft of the fracturing pump 4, so as to ensure the reliability when the output shaft of the speed change mechanism 2 is connected with the input shaft of the fracturing pump 4.
Further, the coupling 5 is preferably a flexible coupling, and the connecting shaft 222 of the large gear shaft 22 and the input shaft of the fracturing pump 4 are connected and fixed with the flexible coupling through flanges respectively, so as to ensure the firmness of the connection between the connecting shaft 222 and the input shaft of the fracturing pump 4.
Optionally, as shown in fig. 5, the hydraulic fracturing pump system further includes a flow splitting block 6 disposed on the speed change mechanism 2, the flow splitting block 6 is provided with a plurality of flow splitting interfaces 61 and at least one liquid inlet interface 62, oil inlets of the plurality of motors 3 are respectively communicated with the flow splitting interfaces 61 of the flow splitting block 6, and the liquid inlet interface 62 of the flow splitting block 6 is communicated with an oil outlet of the oil pump 1.
Specifically, the shunting block 6 is mounted on the housing 21 of the speed change mechanism 2 through a bracket and is located on the left side and/or the right side of the speed change mechanism 2, the shunting block 6 is provided with a plurality of shunting interfaces 61 and at least one liquid inlet interface 62, an oil inlet of the motor 3 is connected to the shunting interface 61 of the shunting block 6 through a hydraulic pipe, one motor 3 corresponds to one shunting interface 61, and an oil outlet of the oil pump 1 is connected to the liquid inlet interface 62 of the shunting block 6 through a hydraulic pipe.
Therefore, by arranging the shunting block 6, oil inlets of the motors 3 are respectively connected to the corresponding shunting interfaces 61 through hydraulic pipes, and oil outlets of the oil pump 1 are connected to the liquid inlet interface 62 through hydraulic pipes, so that the arrangement of the hydraulic pipes between the oil pump 1 and the motors 3 is facilitated, the arrangement difficulty of the hydraulic pipes is reduced, and the service length of the hydraulic pipes between the oil pump 1 and the motors 3 can be shortened; in addition, because the present fracturing equipment is powered by a plurality of engines, and each engine drives one oil pump 1, namely the oil pumps 1 are multiple, when two liquid inlet interfaces 62 are arranged on the flow dividing block 6, oil outlets of the oil pumps 1 can be selectively converged and then connected to one liquid inlet interface 62 through hydraulic pipes, and the other liquid inlet interface 62 is plugged, and oil outlets of the oil pumps 1 can also be selectively connected to the liquid inlet interfaces 62 through hydraulic pipes, so that the hydraulic pipes of the hydraulic fracturing pump system can be arranged according to actual needs, and the applicability is high.
Alternatively, two diversion blocks 6 are provided, and the two diversion blocks 6 are oppositely disposed on the speed change mechanism 2. Specifically, the two diversion blocks 6 are respectively located on the left and right sides of the shift mechanism 2 (i.e., the shift mechanism 2 is located on both sides in the X-axis direction in the drawing).
So, can divide into a plurality of motors 3 two sets of come to carry out the tube coupling with two branch stream block 6, not only make things convenient for laying of hydraulic pressure pipe, can reduce the span between motor 3 and the branch stream block 6 moreover to shorten the live length of hydraulic pressure pipe between motor 3 and the branch stream block 6.
Another embodiment of the utility model provides a fracturing apparatus comprising a hydraulic fracturing pump system as described above.
The fracturing equipment in the embodiment can be a fracturing truck with a chassis truck, the fracturing truck comprises the chassis truck, a power mechanism and the hydraulic fracturing pump system, the chassis truck is used as a transportation moving carrier, and the power mechanism and the hydraulic fracturing pump system are carried; the fracturing equipment can also be a fracturing pry without a chassis truck, and the fracturing pry comprises a power mechanism and the hydraulic fracturing pump system. Since the beneficial effects of the fracturing equipment in this embodiment with respect to the prior art are the same as the beneficial effects of the hydraulic fracturing pump system with respect to the prior art, no further description is given here.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides a hydraulic fracturing pump system which characterized in that, includes oil pump (1), speed change mechanism (2), fracturing pump (4) and a plurality of motor (3), the oil-out of oil pump (1) all the oil inlet of motor (3) all communicates, the output shaft of speed change mechanism (2) with the input shaft of fracturing pump (4), it is a plurality of motor (3) respectively with speed change mechanism (2) can dismantle the connection to be suitable for the drive the output shaft of speed change mechanism (2) rotates.
2. The hydraulic fracturing pump system of claim 1, wherein the speed change mechanism (2) comprises a housing (21) and a gear pair arranged in the housing (21), the motors (3) are detachably connected with the housing (21), the gear pair comprises a large gear shaft (22) and a plurality of small gear shafts (23), one end of the large gear shaft (22) extends out of the housing (21) and is connected with the input shaft of the fracturing pump (4), all the small gear shafts (23) are meshed with the large gear shaft (22), and the ends of the small gear shafts (23) are connected with one motor (3).
3. The hydraulic fracturing pump system of claim 2, wherein a plurality of the pinion shafts (23) are arranged evenly in a circumferential direction of the pinion shaft (22).
4. The hydraulic fracturing pump system of claim 2, wherein the motors (3) are arranged in pairs on the variator (2) and the pinion shaft (23) is connected at each end to one of the motors (3).
5. The hydraulic fracturing pump system of claim 2, wherein the variator (2) further comprises a first bearing (24) disposed within the housing (21), and both ends of the pinion shaft (23) are connected to the housing (21) through the first bearings (24), respectively.
6. The hydraulic fracturing pump system of claim 2, wherein the speed change mechanism (2) further comprises a second bearing (25) arranged in the housing (21), the gear shaft (22) comprises a gear shaft body (221) and a connecting shaft (222), two ends of the gear shaft body (221) are respectively connected with the housing (21) through the second bearing (25), one end of the connecting shaft (222) is connected with one end of the gear shaft body (221), and the other end of the connecting shaft (222) extends out of the housing (21) and is connected with an input shaft of the fracturing pump (4).
7. The hydraulic fracturing pump system of claim 1, further comprising a coupling (5), wherein the output shaft of the speed change mechanism (2) and the input shaft of the fracturing pump (4) are connected through the coupling (5).
8. The hydraulic fracturing pump system of claim 1, further comprising a shunting block (6) disposed on the speed changing mechanism (2), wherein a plurality of shunting interfaces (61) and at least one liquid inlet interface (62) are disposed on the shunting block (6), oil inlets of the plurality of motors (3) are respectively communicated with the shunting interfaces (61) of the shunting block (6), and the liquid inlet interfaces (62) of the shunting block (6) are communicated with an oil outlet of the oil pump (1).
9. The hydraulic fracturing pump system of claim 8, wherein there are two diverter blocks (6) and the two diverter blocks (6) are oppositely disposed on the variator (2).
10. A fracturing apparatus comprising a hydraulic fracturing pump system according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122924809.1U CN216788630U (en) | 2021-11-25 | 2021-11-25 | Hydraulic fracturing pump system and fracturing equipment |
| PCT/CN2022/122251 WO2023093288A1 (en) | 2021-11-25 | 2022-09-28 | Hydraulic fracturing pump system and fracturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122924809.1U CN216788630U (en) | 2021-11-25 | 2021-11-25 | Hydraulic fracturing pump system and fracturing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN216788630U true CN216788630U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122924809.1U Active CN216788630U (en) | 2021-11-25 | 2021-11-25 | Hydraulic fracturing pump system and fracturing equipment |
Country Status (2)
| Country | Link |
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| CN (1) | CN216788630U (en) |
| WO (1) | WO2023093288A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093288A1 (en) * | 2021-11-25 | 2023-06-01 | 三一石油智能装备有限公司 | Hydraulic fracturing pump system and fracturing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8506267B2 (en) * | 2007-09-10 | 2013-08-13 | Schlumberger Technology Corporation | Pump assembly |
| CN203783839U (en) * | 2013-12-30 | 2014-08-20 | 三一重型能源装备有限公司 | Fracturing pump transmission system and fracturing truck |
| CN203978970U (en) * | 2014-07-23 | 2014-12-03 | 淄博鑫江建材机械制造有限公司 | Transmission device |
| CN105041603B (en) * | 2015-08-20 | 2017-09-19 | 三一石油智能装备有限公司 | A kind of fracturing unit truck and its transmission induction system |
| CN205025703U (en) * | 2015-09-29 | 2016-02-10 | 三一重型能源装备有限公司 | Fracturing pump and fracturing unit truck |
| CN212250432U (en) * | 2020-05-27 | 2020-12-29 | 三一石油智能装备有限公司 | Fracturing pump and fracturing truck |
| CN216788630U (en) * | 2021-11-25 | 2022-06-21 | 三一石油智能装备有限公司 | Hydraulic fracturing pump system and fracturing equipment |
-
2021
- 2021-11-25 CN CN202122924809.1U patent/CN216788630U/en active Active
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2022
- 2022-09-28 WO PCT/CN2022/122251 patent/WO2023093288A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093288A1 (en) * | 2021-11-25 | 2023-06-01 | 三一石油智能装备有限公司 | Hydraulic fracturing pump system and fracturing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023093288A1 (en) | 2023-06-01 |
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