CN210714958U - Electrically-driven fracturing driving system and electrically-driven fracturing device - Google Patents
Electrically-driven fracturing driving system and electrically-driven fracturing device Download PDFInfo
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- CN210714958U CN210714958U CN201921878918.0U CN201921878918U CN210714958U CN 210714958 U CN210714958 U CN 210714958U CN 201921878918 U CN201921878918 U CN 201921878918U CN 210714958 U CN210714958 U CN 210714958U
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Abstract
The utility model provides an electrically-driven fracturing driving system and an electrically-driven fracturing device, which relate to the technical field of fracturing pump driving equipment, wherein the electrically-driven fracturing driving system comprises an electric motor, a fracturing pump, at least one hydraulic pump and at least one hydraulic motor; the motor is electrically connected with the high voltage so as to enable the high voltage to supply power to the motor, and the motor is connected with the hydraulic pump and used for driving the hydraulic pump; the oil outlet of the hydraulic pump is connected with the oil inlet of the hydraulic motor and used for driving the hydraulic motor; the hydraulic motor is in transmission connection with the fracturing pump to drive the fracturing pump. The utility model discloses a hydraulic drive mode realizes the rotational speed adjustment of fracturing pump, need not adopt frequency conversion system and inverter motor to carry out the rotational speed adjustment, so need not use the higher frequency conversion system of expense to the cost of hydraulic motor, hydraulic pump is lower, the pipeline is arranged simply, compares the mode that current electric drive fracturing that adopts frequency conversion system equipped, has reduced equipment cost.
Description
Technical Field
The utility model belongs to the technical field of fracturing pump drive device's technique and specifically relates to an electricity drives fracturing actuating system and electricity and drives fracturing unit.
Background
Along with the development of shale gas exploitation in China, fracturing construction operation begins to expand to a deep layer (the well depth is more than 5000 meters), construction pressure and total construction liquid amount are continuously increased, fracturing construction operation with high pressure and large discharge amount is more and more frequent, and fracturing operation time of a single well is more and more long. The transmission vehicle-mounted fracturing equipment has the problems of difficulty in single-machine power improvement, high acquisition cost, high consumption of fuel and easily-damaged parts, high noise, high environmental pollution and the like, and the current fracturing equipment begins to develop towards the direction of electric driving and intellectualization.
The current electric drive fracturing equipment adopts a driving mode that an industrial network power station and a gas power station are used for generating power, the power is introduced into a frequency conversion system through a power transformation and distribution system, and the power is input into a frequency conversion motor after rectification and inversion so as to drive a mechanical fracturing pump to work. Because the frequency conversion system in the existing electrically-driven fracturing equipment is complex, the cost of the existing frequency conversion system accounts for more than 40% of the total cost of the equipment, and the cost of the electrically-driven fracturing equipment is not favorably controlled.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide an electricity drives fracturing actuating system to alleviate the technical problem that electricity drives fracturing equipment with high costs.
A second object of the utility model is to provide an electricity drives fracturing unit to alleviate the technical problem that electricity drives fracturing unit with high costs.
The utility model provides an electricity drives fracturing actuating system, include: an electric motor, a fracturing pump, at least one hydraulic pump, and at least one hydraulic motor;
the motor is electrically connected with high voltage so that the high voltage supplies power to the motor, and the motor is connected with the hydraulic pump and used for driving the hydraulic pump; an oil outlet of the hydraulic pump is connected with an oil inlet of the hydraulic motor and used for driving the hydraulic motor; the hydraulic motor is in transmission connection with the fracturing pump to drive the fracturing pump.
Further, the hydraulic pump is a variable displacement pump;
and/or the hydraulic motor is a variable displacement motor.
Further, the hydraulic pump is plural in number;
the electrically-driven fracturing drive system further comprises a transfer case, wherein the motor is connected with the transfer case, a plurality of hydraulic pumps are arranged on the transfer case, and the motor drives the transfer case to be a plurality of hydraulic pumps.
Further, oil outlets of the hydraulic pumps are connected to the same oil path, and oil outlets of the oil path are communicated with an oil inlet of the hydraulic motor.
Furthermore, the number of the hydraulic motors is multiple, and oil outlets of the oil paths are communicated with oil inlets of the hydraulic motors.
Further, the electric motor includes a single output shaft for connection with the transfer case;
or the electric motor comprises two double output shafts, the transfer case comprises two transfer cases, and the two transfer cases are respectively connected with the double output shafts in a one-to-one correspondence mode.
Further, the electrically-driven fracturing drive system further comprises a power transformation and distribution device, and the motor is electrically connected with the high voltage through the power transformation and distribution device.
Further, the electrically-driven fracturing drive system further comprises an industrial grid power plant or a power station; the industrial power network device or the power station is connected with the motor through the transformation and distribution device.
The utility model provides an electrically-driven fracturing device, which comprises an electrically-driven fracturing driving system provided by the utility model;
the hydraulic motor is in transmission connection with the fracturing pump.
The utility model provides an electricity drives fracturing actuating system, include: an electric motor, a fracturing pump, at least one hydraulic pump, and at least one hydraulic motor; the motor is electrically connected with the high voltage so as to enable the high voltage to supply power to the motor, and the motor is connected with the hydraulic pump and used for driving the hydraulic pump; the oil outlet of the hydraulic pump is connected with the oil inlet of the hydraulic motor and used for driving the hydraulic motor; the hydraulic motor is used for being in transmission connection with the fracturing pump so as to drive the fracturing pump. The utility model discloses electricity drives fracturing actuating system drives hydraulic pump and hydraulic motor, the drive that the fracturing pump was realized to hydraulic motor drive fracturing pump through the motor, also, adopts the rotational speed adjustment that hydraulic drive mode realized the fracturing pump, so need not use frequency conversion system and inverter motor to carry out the rotational speed adjustment to hydraulic motor, the cost of hydraulic pump is lower, the pipeline is arranged simply, compare the current mode that adopts frequency conversion system's electricity to drive fracturing equipment, equipment cost has been reduced.
The electric drive fracturing device provided by the utility model comprises an electric drive fracturing driving system provided by the utility model; the hydraulic motor is in transmission connection with the fracturing pump. The utility model discloses electricity drive fracturing device with the utility model provides an electricity drive fracturing actuating system has the same beneficial effect, through right the utility model provides an electricity drive fracturing actuating system's beneficial effect's description, also can audio-visual acquisition, no longer detailed description here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an electrically driven fracturing drive system provided by an embodiment of the present invention.
Icon: 1-a transformation and distribution device; 2-an electric motor; 3-a transfer case; 4-a hydraulic pump; 5-a hydraulic motor; 6-fracturing pump.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The current electric drive fracturing equipment adopts a driving mode that an industrial grid power station and a gas power station are used for generating power, the power is introduced into a frequency conversion system through a power transformation and distribution system, and the power is input into a frequency conversion motor after rectification and inversion so as to drive a mechanical fracturing pump to work. Because the frequency conversion system in the existing electrically-driven fracturing equipment is complex, the cost of the frequency conversion system accounts for more than 40% of the total cost of the equipment at present, and the cost of the electrically-driven fracturing equipment is not reduced.
To address the above issues, the present embodiment provides an electrically driven fracturing drive system, including: an electric motor 2, a frac pump 6, at least one hydraulic pump 4 and at least one hydraulic motor 5. The motor 2 is electrically connected with high voltage so that the high voltage can supply power to the motor 2, and the motor 2 is connected with the hydraulic pump 4 and used for driving the hydraulic pump 4; an oil outlet of the hydraulic pump 4 is connected with an oil inlet of the hydraulic motor 5 and used for driving the hydraulic motor 5; the hydraulic motor 5 is in driving connection with the fracturing pump 6 to drive the fracturing pump 6.
Specifically, the electrically-driven fracturing driving system further comprises a hydraulic oil tank, an oil inlet of the hydraulic pump 4 is communicated with the hydraulic oil tank, and an oil outlet of the hydraulic motor 5 is communicated with the hydraulic oil tank.
It should be noted that, this embodiment only provides one form of hydraulic oil path, and other forms of hydraulic oil paths may also be provided.
As shown in fig. 1, the electric motor 2 of the present embodiment is electrically connected to a high voltage through the power transformation and distribution device 1, wherein the high voltage may be a high voltage power transmitted from an external power plant to the power transformation and distribution device 1 through an industrial grid power device (the industrial grid power device includes a high voltage electric wire, etc.), or may be a high voltage power of a power plant (for example, a gas power plant) built in a factory, that is, the power plant is directly connected to the power transformation and distribution device 1 through an electric wire. In other words, the electrically-driven fracturing drive system of the present embodiment may include an industrial grid power plant or power plant connected to the motor 2 through the transformation and distribution device 1.
The power transformation and distribution device 1 of the driving system of the fracturing pump is used for transforming high-voltage power transmitted by an industrial grid power device (or a power station) to voltage required by a motor 2, wherein the voltage of the grid power transmitted by a general industrial grid power device is 35kV, and the voltage required by the input of the motor 2 is 3300 kV. The motor 2 may have other voltages.
The number of the hydraulic pumps 4 and the hydraulic motors 5 is set as needed, for example, when the power required by the fracturing pump 6 is large, a plurality of hydraulic pumps 4 and a plurality of hydraulic motors 5 may be used, and when the power required by the fracturing pump 6 is small, one hydraulic pump 4 and one hydraulic motor 5 may be used. The power of the fracturing pump 6 used in the industry is generally large, and the power of a single hydraulic pump 4 is limited, so a plurality of hydraulic pumps 4 are generally adopted, and a plurality of hydraulic pumps 4 can drive one hydraulic motor 5 together or drive a plurality of hydraulic motors 5. When there are a plurality of hydraulic motors 5, the plurality of hydraulic motors 5 can drive one fracturing pump 6.
The electrically-driven fracturing drive system that this embodiment provided drives hydraulic pump 4 and hydraulic motor 5, hydraulic motor 5 drive fracturing pump 6 through motor 2, also, adopts the rotational speed adjustment that the fracturing pump was realized to the hydraulic drive mode, need not adopt frequency conversion system and inverter motor to carry out the rotational speed adjustment, and hydraulic motor 5, hydraulic pump 4's purchasing cost is lower, compares the mode that the electrically-driven fracturing that currently adopts frequency conversion system equipped, has reduced equipment cost.
Because different fracturing pumps 6 or the same fracturing pump 6 are in different working environments, the required rotating speeds are different, and in order to enable one electrically-driven fracturing driving system to be suitable for different fracturing pumps 6 or different fracturing working conditions of the same fracturing pump 6, as a preferred embodiment of the utility model, the hydraulic pump 4 of the embodiment is a variable pump; and/or the hydraulic motor 5 is a variable displacement motor.
That is, the first method is to adjust the flow rate of the entire hydraulic pump 4 and the hydraulic motor 5 by adjusting the flow rate of the hydraulic motor 5 by adjusting the displacement of the variable displacement pump by adjusting the current of the electro proportional valve of the variable displacement pump, so as to adjust the rotation speed of the hydraulic motor 5. Variable displacement pumps are conventional in the art and the principle of operation can also be seen in the prior art.
In the second mode, the hydraulic motor 5 is a variable displacement motor, and the displacement of the hydraulic motor 5 can be adjusted by adjusting the current of an electro-proportional valve of the variable displacement motor, so that the flow rate of the overall hydraulic motor 5 is adjusted to adjust the rotation speed of the hydraulic motor 5. The variable displacement motor is also conventional in the art, and its operating principle can also be referred to in the art.
The third mode is that the hydraulic pump 4 is a variable pump, the hydraulic motor 5 is a variable motor, and the flow rates of the hydraulic pump 4 and the hydraulic motor 5 are adjusted by adjusting the electro proportional valves of the hydraulic motor 5 and the hydraulic pump 4 together, so that the purpose of adjusting the rotating speed of the hydraulic motor 5 is achieved.
At present, in practical application, the rotation speed of the fracturing pump is preferably adjusted by adopting a third mode. It can be understood that the variable displacement motor and the variable displacement pump realize that the rotating speed and the pressure of the hydraulic motor 5 are adjusted by controlling the displacement of the hydraulic pump 4 and/or the displacement of the hydraulic motor, and the fracturing pump 6 meets the requirements of different fracturing construction conditions.
Make one set of fracturing drive system that drives electrically can be applicable to the different operating mode of a plurality of fracturing pumps 6 or same fracturing pump 6 that the rotational speed demand is different for the commonality of equipment strengthens, and need not be equipped with a plurality of drive systems, has practiced thrift equipment investment.
When the quantity of hydraulic pump 4 is a plurality of, the 4 degrees of difficulty of a plurality of hydraulic pumps of motor 2 simultaneous drive are great, in order to alleviate this problem, the utility model discloses an electrically drive fracturing actuating system still includes transfer case 3, and motor 2 is connected with transfer case 3, is provided with a plurality of hydraulic pumps 4 on the transfer case 3, and motor 2 passes through transfer case 3 and drives a plurality of hydraulic pumps 4.
The transfer case 3 is conventional in the art and generally includes an input shaft that drives a plurality of output shafts through a gear assembly for rotation, each of which is connected to one of the hydraulic pumps 4. The connection between the output shaft and the hydraulic pump 4 is also conventional in the art, and will not be described herein.
The gear assembly can adjust the rotating speed ratio of the input shaft and the output shaft, namely, the gear assembly can realize speed increasing or speed reducing, and in practical application, the speed is generally increased, namely, the rotating speed of the hydraulic pump is higher than that of the motor.
It should be noted that in the present embodiment, the electric motor 2 may be in the form of a single output shaft, which is used for connecting with the transfer case 3; the electric motor 2 may be in a form of dual output shafts, in this case, the transfer cases 3 include two transfer cases, two transfer cases 3 are respectively connected with the dual output shafts in a one-to-one correspondence manner, that is, each output shaft of the output shafts is respectively connected with one transfer case 3, and each transfer case 3 is connected with a plurality of or one hydraulic pump 4.
In the present embodiment, as for the form that the hydraulic pump 4 is provided with a plurality of hydraulic pumps, preferably, oil outlets of the plurality of hydraulic pumps 4 are connected to the same oil path, and oil outlets of the oil path are communicated with an oil inlet of the hydraulic motor 5; when the number of the hydraulic motors 5 is multiple, oil outlets of the oil paths are communicated with oil inlets of the hydraulic motors 5.
That is, the oil outlets of the hydraulic pumps 4 feed oil to the same oil path, and the hydraulic motors 5 feed oil from the same oil path, so that the advantage of connection is that the oil feeding pressure of each hydraulic motor 5 is consistent, and the regulation and control of the hydraulic motors 5 are facilitated.
As shown in fig. 1, in a specific embodiment of the present embodiment, one electric motor 2 drives one transfer case 3, the transfer case 3 drives three hydraulic pumps 4 simultaneously, oil outlets of the three hydraulic pumps 4 are merged into a same oil path (i.e., the hydraulic oil written in the figure is merged), an outlet of the oil path is communicated with oil inlets of three hydraulic motors 5, and then, the three hydraulic motors 5 drive one fracturing pump 6 together.
It should be noted that, the hydraulic motor 5 drives the fracturing pump 6 in various ways as long as the motor can drive the fracturing pump 6 to rotate, for example, the fracturing pump 6 is a crankshaft plunger pump, power input gears are arranged at two ends of the crankshaft plunger pump, each hydraulic motor 5 is connected with a power output gear, and the power output gear of the hydraulic motor 5 is in meshing transmission with at least the power input gear at one end of the crankshaft plunger pump.
In conclusion, the drive system of the fracturing pump adopts a mode of combining electric drive (an electric motor and a transfer case) with hydraulic transmission (a hydraulic pump and a hydraulic motor) to replace the existing mode of electric drive and mechanical transmission, and avoids the adoption of a variable-frequency drive system with high cost and high complexity. On one hand, the hydraulic pump and the hydraulic motor are connected through the hydraulic pipeline, so that the whole fracturing pump driving system is more flexible in arrangement and low in complexity, and the cost of the hydraulic pump and the cost of the hydraulic motor are lower than that of a variable-frequency driving system, so that the cost of the whole fracturing pump driving system is correspondingly reduced; furthermore, the fracturing equipment avoids using a frequency conversion system, reduces the dependence on frequency conversion system integrated suppliers, and enables the purchasing of fracturing equipment components to be more controllable.
The embodiment of the utility model provides a still provide an electricity and drive fracturing unit, include the embodiment of the utility model provides an electricity drive fracturing actuating system and other fracturing sled members of driving.
The electrically-driven fracturing device of the present embodiment has the same beneficial effects as the electrically-driven fracturing driving system provided by the present embodiment, and details are not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. An electrically driven frac drive system, comprising: an electric motor (2), a fracturing pump (6), at least one hydraulic pump (4) and at least one hydraulic motor (5);
the motor (2) is electrically connected with high voltage so that the high voltage can supply power to the motor (2), and the motor (2) is connected with the hydraulic pump (4) and used for driving the hydraulic pump (4); an oil outlet of the hydraulic pump (4) is connected with an oil inlet of the hydraulic motor (5) and is used for driving the hydraulic motor (5); the hydraulic motor (5) is in transmission connection with the fracturing pump (6) to drive the fracturing pump (6).
2. The electrically driven frac drive system according to claim 1, wherein the hydraulic pump (4) is a variable displacement pump;
and/or the hydraulic motor (5) is a variable displacement motor.
3. The electrically driven fracturing drive system according to claim 1, wherein the hydraulic pump (4) is plural in number;
the electrically-driven fracturing drive system further comprises a transfer case (3), wherein the motor (2) is connected with the transfer case (3), the transfer case (3) is provided with a plurality of hydraulic pumps (4), and the motor (2) drives the transfer case (3) to form a plurality of hydraulic pumps (4).
4. The electrically driven fracturing drive system according to claim 3, wherein the oil outlets of a plurality of hydraulic pumps (4) are connected to the same oil circuit, the oil outlets of which are in communication with the oil inlet of the hydraulic motor (5).
5. The electrically driven fracturing drive system according to claim 4, wherein the number of the hydraulic motors (5) is multiple, and the oil outlets of the oil paths are communicated with the oil inlets of the multiple hydraulic motors (5).
6. The electrically driven frac drive system according to claim 3, wherein the electric motor (2) comprises a single output shaft for connection with the transfer case (3);
or the electric motor (2) comprises two output shafts, the transfer cases (3) comprise two transfer cases, and the two transfer cases (3) are respectively connected with the two output shafts in a one-to-one correspondence mode.
7. An electrically driven frac drive system according to any of claims 1-5 further comprising a power transformation and distribution device (1), said electric motor (2) being electrically connected to said high voltage through said power transformation and distribution device (1).
8. The electrically driven frac driving system of claim 7, further comprising an industrial grid power plant or power plant; the industrial network power device or the power station is connected with the motor (2) through the power transformation and distribution device (1).
9. An electrically driven fracturing unit, characterized by an electrically driven fracturing drive system as claimed in any of claims 1 to 8.
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| CN110645159A (en) * | 2019-11-01 | 2020-01-03 | 三一石油智能装备有限公司 | Electrically-driven fracturing driving system and electrically-driven fracturing device |
| CN114151055A (en) * | 2021-11-16 | 2022-03-08 | 三一石油智能装备有限公司 | Fracturing equipment hydraulic system, control method and fracturing equipment |
| US11608726B2 (en) | 2021-01-11 | 2023-03-21 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Switchable apparatus, well site and control method thereof, device, and storage medium |
| US11702919B2 (en) | 2019-09-20 | 2023-07-18 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Adaptive mobile power generation system |
| US11788519B2 (en) | 2019-09-20 | 2023-10-17 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Turbine fracturing equipment |
| US11828277B2 (en) | 2019-09-20 | 2023-11-28 | Yantal Jereh Petroleum Equipment & Technologies Co., Ltd. | Turbine-driven fracturing system on semi-trailer |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
| US12065916B2 (en) | 2019-09-20 | 2024-08-20 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Hydraulic fracturing system for driving a plunger pump with a turbine engine |
| US12091953B2 (en) | 2019-09-20 | 2024-09-17 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Hydraulic fracturing system for driving a plunger pump with a turbine engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11702919B2 (en) | 2019-09-20 | 2023-07-18 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Adaptive mobile power generation system |
| US11746637B2 (en) | 2019-09-20 | 2023-09-05 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Adaptive mobile power generation system |
| US11788519B2 (en) | 2019-09-20 | 2023-10-17 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Turbine fracturing equipment |
| US11828277B2 (en) | 2019-09-20 | 2023-11-28 | Yantal Jereh Petroleum Equipment & Technologies Co., Ltd. | Turbine-driven fracturing system on semi-trailer |
| US12065916B2 (en) | 2019-09-20 | 2024-08-20 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Hydraulic fracturing system for driving a plunger pump with a turbine engine |
| US12091953B2 (en) | 2019-09-20 | 2024-09-17 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Hydraulic fracturing system for driving a plunger pump with a turbine engine |
| CN110645159A (en) * | 2019-11-01 | 2020-01-03 | 三一石油智能装备有限公司 | Electrically-driven fracturing driving system and electrically-driven fracturing device |
| US11608726B2 (en) | 2021-01-11 | 2023-03-21 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Switchable apparatus, well site and control method thereof, device, and storage medium |
| US12060784B2 (en) | 2021-01-11 | 2024-08-13 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Switchable apparatus, well site and control method thereof, device, and storage medium |
| CN114151055A (en) * | 2021-11-16 | 2022-03-08 | 三一石油智能装备有限公司 | Fracturing equipment hydraulic system, control method and fracturing equipment |
| 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 |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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