A Fracturing Truck Energy Storage and Power Supply System and a Fracturing Truck

Abstract

The present invention provides a fracturing vehicle energy storage and power supply system and a fracturing vehicle. The system includes an on-board energy storage and power supply unit, a chassis energy storage and power supply unit, and a control unit. The on-board energy storage and power supply unit includes a first energy storage component, a first diode, and a first power generation component. The positive electrode of the first energy storage component is electrically connected to the positive electrode of the on-board electrical appliance, and the negative electrode is grounded. The negative electrode of the on-board electrical appliance is grounded. The positive electrode of the first power generation component is electrically connected to the positive electrode of the first diode, and the negative electrode is grounded. The negative electrode of the first diode is electrically connected to the positive electrode of the first energy storage component. The chassis energy storage and power supply unit includes a second energy storage component. The positive electrode of the second energy storage component is electrically connected to the negative electrode of the chassis electrical appliance, and the negative electrode is grounded. The negative electrode of the chassis electrical appliance is grounded. The negative electrode of the first diode is also electrically connected to the positive electrode of the second energy storage component. The control unit includes a control switch assembly. The fracturing vehicle adopts the above power supply system. The beneficial effects of the present invention include: simple operation and prevention of battery discharge.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas field operation equipment, and specifically, to a power storage and supply system for a fracturing truck and a fracturing truck. Background Art

[0002] For shale gas development, the factory-style fracturing operation mode of platform wells is adopted, which has a long construction time and uses many equipment. For the fracturing trucks used in conventional oil and gas field stimulation operations, due to changes in working conditions such as continuous operation time, the performance of some systems of the equipment no longer meets the needs of the factory-style fracturing operation of shale gas platform wells.

[0003] Currently, for the fracturing trucks used in conventional oil and gas well development, the chassis and the on-board operation part each adopt an independent DC power generation and power storage system for power storage and power supply during equipment operation. During the fracturing operation of conventional oil and gas wells, construction and transfer are carried out alternately. When transferring, the chassis engine charges the chassis battery; during the fracturing operation, the on-board generator charges the on-board battery. During the alternating process of construction and transfer, both the chassis battery and the on-board battery can obtain sufficient power replenishment.

[0004] With the large-scale promotion of shale gas development, its factory-style fracturing operation mode requires 40 to 80 days to complete a platform operation. During this period, the fracturing truck remains stationary without transfer, and the working time of the chassis engine is extremely short. The DC generator driven by the chassis engine charges the chassis battery very little. The fracturing operation consumes the power of the chassis battery multiple times a day to start the on-board engine, and the chassis battery will soon run out of power. Frequently running out of power increases the failure rate of the battery and shortens the battery life. Battery failure and the inability to start the on-board engine delay construction, reduce operation efficiency, and increase costs. Summary of the Invention

[0005] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to solve one or more of the problems existing in the above prior art. For example, one of the purposes of the present invention is to provide a power storage and supply system for a fracturing truck and a fracturing truck.

[0006] To achieve the above object, on the one hand, the present invention provides a fracking truck power storage and supply system. The system may include an on-board power storage and supply unit, a chassis power storage and supply unit, and a control unit. Among them, the on-board power storage and supply unit may include a first power storage component, a first diode, and a first power generation component. Among them, the positive pole of the first power storage component may be electrically connected to the positive pole of the on-board electrical appliance, and the negative pole is grounded. The negative pole of the on-board electrical appliance is grounded to form a power supply circuit for the on-board electrical appliance; the positive pole of the first power generation component may be electrically connected to the positive pole of the first diode, and the negative pole is grounded. The negative pole of the first diode is electrically connected to the positive pole of the first power storage component to form a charging circuit for the first power storage component; the chassis power storage and supply unit may include a second power storage component. The positive pole of the second power storage component may be electrically connected to the negative pole of the chassis electrical appliance, and the negative pole is grounded. The negative pole of the chassis electrical appliance is grounded to form a power supply circuit for the chassis electrical appliance; the negative pole of the first diode may also be electrically connected to the positive pole of the second power storage component to form a charging circuit for the second power storage component; the control unit may include a control switch component. The control switch component is arranged on the line connecting the first diode and the second power storage component to control the opening and closing of a charging circuit of the second power storage component.

[0007] In an exemplary embodiment of the fracking truck power storage and supply system of the present invention, the positive pole of the first power generation component may also be electrically connected to the positive pole of the on-board electrical appliance to form another power supply circuit for the on-board electrical appliance.

[0008] In an exemplary embodiment of the fracking truck power storage and supply system of the present invention, the chassis power storage and supply unit may further include a second power generation component and a second diode, where

[0009] The positive pole of the second power generation component is electrically connected to the positive pole of the second diode, and the negative pole is grounded. The negative pole of the second diode is electrically connected to the positive pole of the second power storage component to form another charging circuit for the second power storage component.

[0010] In an exemplary embodiment of the fracking truck power storage and supply system of the present invention, the positive pole of the second power generation component may also be electrically connected to the positive pole of the chassis electrical appliance to form another power supply circuit for the chassis electrical appliance.

[0011] In an exemplary embodiment of the fracking truck power storage and supply system of the present invention, the chassis power storage unit may further include a first switch component. One end of the first switch component may be connected to the negative pole of the first power storage component, and the other end is grounded to control the opening and closing of the grounding line of the first power storage component.

[0012] In an exemplary embodiment of the fracking truck power storage and supply system of the present invention, the on-board power storage unit may further include a second switch component. One end of the second switch component may be connected to the negative pole of the second power storage component, and the other end is grounded to control the opening and closing of the grounding line of the second power storage component.

[0013] In an exemplary embodiment of the energy storage and power supply system of the fracturing vehicle according to the present invention, both the first and second energy storage components may include storage batteries.

[0014] In an exemplary embodiment of the energy storage and power supply system of the fracturing vehicle according to the present invention, both the first and second power generation components may include DC generators.

[0015] On the other hand, the present invention provides a fracturing vehicle. The fracturing vehicle employs the above-mentioned energy storage and power supply system of the fracturing vehicle.

[0016] Compared with the prior art, the beneficial effects of the present invention may include: the energy storage and power supply system of the present invention is easy to install and is convenient for fixed installation on the fracturing vehicle, is easy to operate, can achieve various charging and power supply modes without interrupting the operation of the equipment, and can effectively reduce the incidence of failures caused by storage batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Through the following description with reference to the drawings, the above and other objects and features of the present invention will become clearer, wherein:

[0018] Figure 1 FIG. shows a schematic structural diagram of the energy storage and power supply system of the fracturing vehicle in an exemplary embodiment of the present invention;

[0019] Figure 2 FIG. shows a schematic structural diagram of the energy storage and power supply system of the fracturing vehicle in another exemplary embodiment of the present invention.

[0020] MAIN REFERENCE NUMERALS DESCRIPTION:

[0021] 1. Control unit, 2. Chassis energy storage and power supply unit, 3. On-board energy storage and power supply unit, 11. Control switch assembly, 21. Second diode, 22. Second switch assembly, 31. First diode, 32. First switch assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Hereinafter, the energy storage and power supply system of the fracturing vehicle and the fracturing vehicle according to the present invention will be described in detail with reference to the drawings and exemplary embodiments.

[0023] On one hand, the present invention provides an energy storage and power supply system of a fracturing vehicle.

[0024] In an exemplary embodiment of the present invention, as Figure 1 shown, the system may include an on-board energy storage and power supply unit 3, a chassis energy storage and power supply unit 2, and a control unit 1.

[0025] Specifically, the on-board energy storage and power supply unit may include a first energy storage component, a first diode 31, and a first power generation component.

[0026] Among them, the positive electrode of the first energy storage component can be electrically connected to the positive electrode of the on-board electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the on-board electrical appliance is grounded, thereby forming a power supply circuit for the on-board electrical appliance.

[0027] The positive electrode of the first power generation component can be electrically connected to the positive electrode of the on-board electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the on-board electrical appliance is grounded, thereby forming another power supply circuit for the on-board electrical appliance.

[0028] The positive electrode of the first power generation component can also be electrically connected to the positive electrode of the first diode through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the first diode can be electrically connected to the positive electrode of the first energy storage component through a conductive connection wire, thereby forming a charging circuit for the first energy storage component.

[0029] Specifically, the chassis power storage and supply unit can include a second energy storage component.

[0030] Among them, the positive electrode of the second energy storage component can be electrically connected to the positive electrode of the chassis electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the chassis electrical appliance is grounded, thereby forming a power supply circuit for the chassis electrical appliance.

[0031] The negative electrode of the first diode can also be electrically connected to the positive electrode of the second energy storage component through a conductive connection wire to form a charging circuit for the second energy storage component.

[0032] In this embodiment, a power supply switch component can also be provided on the power supply circuits of the on-board and chassis electrical appliances.

[0033] Specifically, the control unit 1 can include a control switch component 11.

[0034] Among them, the control switch component is arranged on the line connecting the first diode and the second energy storage component, so as to be able to control the opening and closing of a charging circuit of the second energy storage component.

[0035] In this embodiment, the control unit 1 can also include a safety insurance component (not shown in the figure), and the safety insurance component is connected in series with the switch component to ensure the safety of the line.

[0036] In this embodiment, the first energy storage component can include a storage battery, the second energy storage component can include a storage battery, and the first power generation component can include a DC generator.

[0037] In this embodiment, grounding the negative electrode means that the negative electrode wires of each device are connected to the metal parts of the vehicle frame nearby, using the metal body as a common channel, and at the same time, it can also play a role of grounding. Grounding the negative electrode has the advantages of less interference to electronic devices, less electrochemical corrosion to the vehicle frame and body, and firm connection.

[0038] In this embodiment, when the second power storage component is out of power, the control switch component can be turned on, and the first power generation component can be used to charge the second power storage component. At this time, the first power storage component can choose to withdraw from the charging process.

[0039] In this embodiment, when the first power generation component is turned on, the first power storage component stops working, the on-stage electrical appliance stops working, the second power storage component stops working, and the chassis electrical appliance is turned on, the control switch component 11 can be turned on, and the first power generation component can be used to supply power to the chassis electrical appliance.

[0040] In another exemplary embodiment of the present invention, as Figure 2 shown, the system may include an on-stage power storage and supply unit 3, a chassis power storage and supply unit 2, and a control unit 1.

[0041] Specifically, the on-stage power storage and supply unit 3 may include a first power storage component, a first diode 31, a first power generation component, and a first switch component 32.

[0042] Among them, the positive electrode of the first power storage component may be electrically connected to the positive electrode of the on-stage electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the on-stage electrical appliance is grounded, thereby forming a power supply circuit for the on-stage electrical appliance; the first switch component 32 is provided on the line where the negative electrode of the first power storage component is grounded, so as to be able to control the opening and closing of this line.

[0043] The positive electrode of the first power generation component may be electrically connected to the positive electrode of the on-stage electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the on-stage electrical appliance is grounded, thereby forming another power supply circuit for the on-stage electrical appliance.

[0044] The positive electrode of the first power generation component may also be electrically connected to the positive electrode of the first diode through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the first diode may be electrically connected to the positive electrode of the first power storage component through a conductive connection wire, thereby forming a charging circuit for the first power storage component.

[0045] In this embodiment, the first power storage component may include a storage battery, and the first power generation component may include a DC generator.

[0046] Specifically, the chassis power storage and supply unit 2 may include a second power storage component, a second diode 21, a second power generation component, and a second switch component 22.

[0047] Among them, the positive electrode of the second power storage component may be electrically connected to the positive electrode of the chassis electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the chassis electrical appliance is grounded, thereby forming a power supply circuit for the chassis electrical appliance; the second switch component 22 is provided on the line where the negative electrode of the second power storage component is grounded, so as to be able to control the opening and closing of this line.

[0048] The positive electrode of the second power generation component can be electrically connected to the positive electrode of the chassis electrical appliance through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the chassis electrical appliance is grounded, thereby forming another power supply circuit for the chassis electrical appliance.

[0049] The positive electrode of the second power generation component can also be electrically connected to the positive electrode of the second diode through a conductive connection wire, and the negative electrode is grounded. The negative electrode of the second diode can be electrically connected to the positive electrode of the second energy storage component through a conductive connection wire, thereby forming a charging circuit for the second energy storage component.

[0050] The negative electrode of the first diode can also be electrically connected to the positive electrode of the second energy storage component through a conductive connection wire to form a charging circuit for the second energy storage component. Specifically, the negative electrode of the first diode is electrically connected to the negative electrode of the second diode through a conductive connection wire. The negative electrode of the first power generation component is grounded and the negative electrode of the second energy storage component is grounded, thereby forming another charging circuit for the second energy storage component.

[0051] In this embodiment, the second energy storage component may include a storage battery.

[0052] In this embodiment, a power supply switch component may also be provided on the power supply circuits of the on-stage and chassis electrical appliances.

[0053] Specifically, the control unit 1 may include a control switch component 11.

[0054] Wherein, the control switch component is arranged on the line connecting the first diode and the second energy storage component, so as to be able to control the opening and closing of a charging circuit of the second energy storage component.

[0055] In this embodiment, the control unit 1 may further include a safety insurance component (not shown in the figure), and the safety insurance component is connected in series with the switch component to ensure the safety of the line.

[0056] In this embodiment, both the first and second power generation components may include DC generators, and both the first and second energy storage components may include storage batteries.

[0057] In this embodiment, grounding the negative electrode means connecting the negative electrode wires of each device to the metal parts of the vehicle frame nearby, using the metal body as a common channel, and at the same time being able to play the role of grounding. Grounding the negative electrode has the advantages of less interference to electronic devices, less electrochemical corrosion to the vehicle frame and body, and firm connection.

[0058] In this embodiment, when all parts on the platform are under normal construction operation and all parts under the platform are not working: the first switch assembly 32 is in a closed state, the electrical appliances on the platform are in a working state, the control switch assembly 11 is in an open state, the first energy storage assembly and the electrical appliances on the platform are in a normal working state, and each part of the chassis circuit is not powered on (the second power generation assembly is not working). If the second energy storage assembly is already out of power at this time, the control switch assembly 11 can be closed first, then the second switch assembly 22 can be closed, and then the first switch assembly 32 can be opened. The second energy storage assembly does not work and is charged by the first power generation assembly. At the same time, the first power generation assembly also provides a stable voltage for the electrical appliances on the platform. At this time, the first energy storage assembly can be disconnected and withdrawn from charging and power supply. This realizes that under the condition that each system on the platform does not interrupt operation, the control switch control assembly 11, the first switch assembly 32 and the second switch assembly 22 can be controlled in a timely manner according to needs, ensuring that the second energy storage assembly is charged according to needs and avoiding power shortage.

[0059] In this embodiment, during the normal construction process of all parts on the platform, the first energy storage assembly fails, the system voltage is unstable, resulting in voltage fluctuations in the output of the first power generation assembly. By first closing the control switch assembly 11, then closing the second switch assembly 22, and finally opening the first switch assembly 32, the second energy storage assembly enters the power storage and supply circuit on the platform to play a role in stabilizing the voltage. At this time, the electrical appliances on the platform resume normal operation and continue construction.

[0060] On the other hand, the present invention provides a fracturing truck.

[0061] In still another exemplary embodiment of the present invention, the fracturing truck adopts any one of the fracturing truck power storage and supply systems in the above two exemplary embodiments.

[0062] In summary, the advantages of the fracturing truck power storage and supply system and the fracturing truck of the present invention may include: on the premise of ensuring the safety and stability of the power storage and supply system, it can effectively solve the problems of delayed construction, reduced operation efficiency, and increased construction costs caused by faults due to power shortage of the chassis battery during the construction site of the factory fracturing operation of shale gas platform wells.

[0063] Although the present invention has been described above by combining exemplary embodiments, those skilled in the art should clearly understand that various modifications and changes can be made to the exemplary embodiments of the present invention without departing from the spirit and scope defined by the claims.

Claims

1. A fracking truck energy storage and power supply system, characterized in that, The system includes a on-platform power storage and supply unit, a chassis power storage and supply unit, and a control unit. Among them, The on-platform power storage and supply unit includes a first power storage component, a first diode, and a first power generation component. Among them, The positive electrode of the first power storage component is electrically connected to the positive electrode of the on-platform electrical appliance, and the negative electrode is grounded. The negative electrode of the on-platform electrical appliance is grounded to form a power supply circuit for the on-platform electrical appliance; The positive electrode of the first power generation component is electrically connected to the positive electrode of the first diode, and the negative electrode is grounded. The negative electrode of the first diode is electrically connected to the positive electrode of the first power storage component to form a charging circuit for the first power storage component; The chassis power storage and supply unit includes a second power storage component. The positive electrode of the second power storage component is electrically connected to the negative electrode of the chassis electrical appliance, and the negative electrode is grounded. The negative electrode of the chassis electrical appliance is grounded to form a power supply circuit for the chassis electrical appliance; The negative electrode of the first diode is also electrically connected to the positive electrode of the second power storage component to form a charging circuit for the second power storage component; The control unit includes a control switch component. The control switch component is arranged on the line connecting the first diode and the second power storage component to control the opening and closing of a charging circuit of the second power storage component; The chassis power storage and supply unit further includes a second power generation component and a second diode. Among them, the positive electrode of the second power generation component is electrically connected to the positive electrode of the second diode, and the negative electrode is grounded. The negative electrode of the second diode is electrically connected to the positive electrode of the second power storage component to form another charging circuit for the second power storage component; The positive electrode of the second power generation component is also electrically connected to the positive electrode of the chassis electrical appliance to form another power supply circuit for the chassis electrical appliance; The chassis power storage and supply unit further includes a first switch component. One end of the first switch component is connected to the negative electrode of the first power storage component, and the other end is grounded to control the opening and closing of the grounding line of the first power storage component; The on-platform power storage and supply unit further includes a second switch component. One end of the second switch component is connected to the negative electrode of the second power storage component, and the other end is grounded to control the opening and closing of the grounding line of the second power storage component.

2. The fracking truck power storage and supply system according to claim 1, characterized in that, The positive electrode of the first power generation component is also electrically connected to the positive electrode of the on-platform electrical appliance to form another power supply circuit for the on-platform electrical appliance.

3. The power storage and supply system of the fracturing truck according to claim 1, characterized in that, Both the first and second power storage components include storage batteries.

4. The fracking truck power storage and supply system according to claim 1, characterized in that, Both the first and second power generation components include DC generators.

5. A fracturing vehicle, characterized in that, The fracturing truck adopts the fracturing truck power storage and supply system described in any one of claims 1 to 4.

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