Split type new energy electric drive drilling mud pump set

Abstract

The utility model discloses a split type new energy electric drive drilling mud pump set which comprises a mud pump set body, a mud pump skid seat for supporting the mud pump set body, a power unit and a power skid seat for supporting the power unit, and the mud pump skid seat and the power skid seat are connected through a skid seat connecting seat. The slurry pump set comprises slurry pumps, the power set comprises a power transmission system and an electric control system, the electric control system comprises an inverter cabinet, a reactance cabinet and an anti-explosion distribution box, and the power transmission system comprises a motor, a resultant force gear reducer and a coupler. The motors are connected in parallel and connected with the power input end of the resultant force gear reducer, and the power output end of the resultant force gear reducer is connected with the power input end of the slurry pump through the coupler. The new energy vehicle gauge level telex technology and the heat dissipation system are adopted, integration of an electric control system and a power system is achieved, the slurry pump is independently skid-mounted, the whole machine is small in matched size, light in weight, low in energy consumption and low in noise, multiple motors are driven in parallel, and the influence on the construction operation effect can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of drilling mud pumps. More specifically, the utility model relates to a split-type new energy electric drive drilling mud pump unit. Background Art

[0002] The mud pump unit is the main equipment supporting drilling equipment and is known as the "heart" of the drilling rig. It plays a crucial role in drilling construction, and its performance directly affects the drilling rate and cost. In recent years, with the increasing pressure of energy conservation and emission reduction and the strong promotion of clean energy, traditional mud pumps cannot meet the drilling requirements and must be innovatively developed. At the same time, due to the limitations of the on-site and transportation space, the requirements for the operation economy, quality, and external dimensions of the mud pump unit are getting higher and higher. Currently, electrified equipment such as workover rigs and mud pumps has formed an industrial-scale application, and generally uses conventional AC variable frequency motor drive, belt or chain drive, and has the following problems: the pump unit has a large mass and volume, which is not conducive to handling, and the overall machine supporting occupies a large area; the transmission chain is long and the transmission efficiency is low; the power loss is large, there are vulnerable parts in the transmission link, and the chain and belt need to be replaced regularly, resulting in high maintenance costs and a large number of motor specifications, making spare parts management difficult; the motor has a large noise and high energy consumption, and the electric control system needs to be equipped with a VFD room, with low integration. At the same time, based on the characteristics of the motor itself, accurate condition monitoring and fault diagnosis cannot be achieved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a split-type new energy electric drive drilling mud pump unit, which adopts new energy vehicle-grade electric drive technology and a heat dissipation system to realize the integration of the electric control system and the power system. The mud pump is independently skidded, and the overall machine supporting has a small volume, light weight, low energy consumption, and low noise. Multiple motors are driven in parallel, which can reduce the impact on the construction operation effect.

[0004] The technical solution adopted by the utility model to solve this technical problem is: to provide a split-type new energy electric drive drilling mud pump unit, including a mud pump unit, a mud pump skid base for supporting the mud pump unit, a power unit, and a power skid base for supporting the power unit. The mud pump skid base and the power skid base are connected by a skid base connecting seat;

[0005] The mud pump unit includes a mud pump. The power unit includes a power transmission system and an electric control system. The electric control system includes an inverter cabinet, a reactor cabinet, and an explosion-proof distribution box. The power transmission system includes a motor, a combined gear reducer, and a coupling;

[0006] External current flows into the reactor cabinet, inverter cabinet, and motor in sequence through the power cable. A plurality of the motors are fixedly connected in parallel to the combined gear reducer and connected to the power input end of the combined gear reducer. The power output end of the combined gear reducer is connected to the power input end of the mud pump through a coupling.

[0007] Preferably, for the split-type new energy electric drive drilling mud pump unit, the mud pump unit further includes a mud pump lubrication system, a spraying system and a perfusion system, and the mud pump lubrication system, the spraying system and the perfusion system are all connected to the mud pump.

[0008] Preferably, for the split-type new energy electric drive drilling mud pump unit, the power unit further includes a resultant force gear reducer lubrication system and a lubricating oil tank;

[0009] The resultant force gear reducer lubrication system includes a lubricating pump. The inlet of the lubricating pump is connected to the lubricating oil tank, the outlet of the lubricating pump is connected to the resultant force gear reducer, and the oil return port of the lubricating oil tank is connected to the bottom of the resultant force gear reducer.

[0010] Preferably, for the split-type new energy electric drive drilling mud pump unit, the power unit further includes a heat dissipation system, and the heat dissipation system uses an air-cooled radiator for heat dissipation.

[0011] Preferably, for the split-type new energy electric drive drilling mud pump unit, a new energy vehicle-grade inverter is provided in the inverter cabinet, and the motor is controlled by a PLC communication control system.

[0012] Preferably, for the split-type new energy electric drive drilling mud pump unit, the motor is a new energy vehicle-grade permanent magnet synchronous motor.

[0013] Preferably, for the split-type new energy electric drive drilling mud pump unit, the coupling is a universal cross drive shaft or a universal constant velocity joint coupling.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. By adopting the new energy vehicle-grade electric drive technology and the heat dissipation system, the integration of the electric control system and the power system is realized, the mud pump is independently skidded, the overall supporting volume of the whole machine is small, the weight is reduced, the energy consumption is reduced, the noise and vibration are reduced, the service life of the motor is prolonged, and the accurate condition monitoring and fault diagnosis are realized, greatly reducing the use and maintenance costs.

[0016] 2. By using multiple high-speed and high-power density new energy vehicle-grade motors to replace the traditional single large-power motor as the power source of the mud pump. The output torque of the motor can be significantly reduced, thereby significantly reducing the volume and weight of the motor and improving the power density of the power transmission module.

[0017] 3. Since multiple motors are used in parallel drive, each motor serves as a backup for the others. Even if some of the motors fail, other motors can still be used to drive the mud pump. Although the overall power decreases to some extent, there is no need to stop the pump, which can minimize the impact on the construction operation effect. In contrast, in the traditional technical solution with a single motor drive, when the motor fails during the drilling operation, the entire drilling device has to stop, resulting in a significant loss of output power and a greater impact on the operation effect.

[0018] Other advantages, objectives, and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of a split-type new energy electric drive drilling mud pump set of the present utility model;

[0020] Figure 2 is the top view of a split-type new energy electric drive drilling mud pump set of the present utility model;

[0021] Description of the reference numerals: 1. Mud pump skid base; 2. Skid base connecting seat; 3. Mud pump lubrication system; 4. Mud pump; 5. Spraying system; 6. Priming system; 7. Heat dissipation system; 8. Explosion-proof distribution box; 9. Inverter cabinet; 10. Reactor cabinet; 11. Lubrication system for the combined gear reducer; 12. Lubricating oil tank; 13. Combined gear reducer; 14. Coupling; 15. Motor; 16. Power skid base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the present utility model in detail with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0023] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be applied to other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0024] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.

[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0026] As Figure 1-2 shown, a preferred embodiment of the present utility model provides a split-type new energy electric drive drilling mud pump unit, which includes a mud pump unit, a mud pump skid base 1 for supporting the mud pump unit, a power unit, and a power skid base 16 for supporting the power unit. The mud pump skid base 1 and the power skid base 16 are connected by a skid connection seat 2;

[0027] The mud pump unit includes a mud pump 4. A large and small gear shaft is rotationally connected in the mud pump 4. The power input end of the small gear shaft is connected to the output end of the combined gear reduction box 13 through a flange. The power unit includes a power transmission system and an electric control system. The electric control system includes an inverter cabinet 9, a reactor cabinet 10, and an explosion-proof distribution box 8. The power transmission system includes a motor 15, a combined gear reduction box 13, and a coupling 14. The combined gear reduction box 13 is composed of a box body and an internal gear reduction mechanism.

[0028] External current flows into the reactor cabinet 10, the inverter cabinet 9, and the motor 15 in sequence through the power cable. The reactor cabinet 10 can limit the AC component superimposed on the DC current to a certain specified value, playing a role in anti-interference. A number of the motors 15 are fixedly connected in parallel to the combined gear reduction box 13 and connected to the power input end of the combined gear reduction box 13. The power output end of the combined gear reduction box 13 is connected to the power input end of the mud pump 4 through the coupling 14, thereby transmitting the power of the motor 15 to the power end of the mud pump 4 to realize the operation of the mud pump 4.

[0029] Further, in the split-type new energy electric drive drilling mud pump unit, the mud pump unit further includes a mud pump lubrication system 3, a spray system 5, and a filling system 6. The mud pump lubrication system 3, the spray system 5, and the filling system 6 are all connected to the mud pump 4;

[0030] The mud pump lubrication system 3 is used to provide lubrication for the power end of the mud pump 4. The spraying system 5 is connected to the mud pump 4 through a pipeline. The spraying system 5 uses an electric spraying pump as the power source to provide cooling and lubrication for the hydraulic end of the mud pump 4. The perfusion system 6 is connected to the low-pressure suction main pipe of the mud pump 4 through a flange. The perfusion system 6 uses an electric centrifugal pump as the power source to pump low-pressure fluid for the mud pump 4, and then the mud pump 4 converts the low-pressure fluid into high-pressure fluid and discharges it.

[0031] The explosion-proof distribution box 8 is used to provide power supply and start-stop control for auxiliary motors such as electric spraying pumps, lubrication pumps, and electric centrifugal pumps, and is equivalent to a transfer box.

[0032] Furthermore, for the split-type new energy electric drive drilling mud pump unit, it is characterized in that the power unit further includes a combined gearbox lubrication system 11 and a lubricating oil tank 12; the combined gearbox lubrication system 11 uses an electric lubrication pump as the power source to provide lubrication for the combined gearbox 13.

[0033] The combined gearbox lubrication system 11 includes a lubrication pump. The inlet of the lubrication pump is connected to the lubricating oil tank 12, the outlet of the lubrication pump is connected to the combined gearbox 13, and the oil return port of the lubricating oil tank 12 is connected to the bottom of the combined gearbox 13. The lubrication pump sucks oil from the lubricating oil tank 12, enters the combined gearbox 13 after being cooled by the heat dissipation system 7, and then returns the oil from the bottom of the combined gearbox 13 to the lubricating oil tank 12.

[0034] Furthermore, for the split-type new energy electric drive drilling mud pump unit, the power unit further includes a heat dissipation system 7, and the heat dissipation system 7 uses an air-cooled radiator for heat dissipation. In this embodiment, a preferred implementation is that the heat dissipation system 7 integrates oil cooling and water cooling, where water cooling uses a 50% ethylene glycol aqueous solution as the cooling medium to provide heat dissipation for the motor 15 (water cooling), the electric control system (water cooling), and the lubricating oil of the combined gearbox 13 (oil cooling) through the air-cooled radiator.

[0035] Furthermore, for the split-type new energy electric drive drilling mud pump unit, a new energy vehicle-grade inverter is provided in the inverter cabinet 9, which can perform variable frequency speed regulation and protection for multiple drive motors 15 one by one. The motor 15 is controlled by a PLC communication control system. The motor 15 is selected as a new energy vehicle-grade permanent magnet synchronous motor. Multiple motors 15 are driven in parallel and controlled by a PLC communication control system. Operators can perform local control on the control panel of the inverter cabinet 9, and at the same time, they can perform remote control indoors through remote communication.

[0036] Further, for the split-type new energy electric drive drilling mud pump unit, the motor 15 is a new energy vehicle-grade permanent magnet synchronous motor. The new energy vehicle-grade permanent magnet synchronous motor has the advantages of high speed and high power density.

[0037] Further, for the split-type new energy electric drive drilling mud pump unit, the coupling 14 is a universal cross drive shaft or a constant velocity joint coupling.

[0038] The specific implementation process is as follows: Start the motor 15, and the power is transmitted to the mud pump 4 through the combined force gear reducer 13 and the coupling 14. Through the reciprocating motion of the piston inside the mud pump 4, the low-pressure fluid inhaled by the perfusion system 6 is converted into high-pressure fluid and discharged through the high-pressure discharge port of the mud pump 4.

[0039] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A split-type new energy electric drive drilling mud pump unit, characterized in that, It includes a mud pump set, a mud pump skid base for supporting the mud pump set, a power unit, and a power skid base for supporting the power unit. The mud pump skid base and the power skid base are connected by a skid connection base. The mud pump set includes mud pumps. The power unit includes a power transmission system and an electric control system. The electric control system includes an inverter cabinet, a reactor cabinet, and an explosion-proof distribution box. The power transmission system includes a motor, a combined gear reducer, and a coupling. External current flows into the reactor cabinet, the inverter cabinet, and the motor in sequence through a power cable. A plurality of the motors are fixedly connected in parallel to the combined gear reducer and connected to the power input end of the combined gear reducer. The power output end of the combined gear reducer is connected to the power input end of the mud pump through a coupling.

2. The split-type new energy electric drive drilling mud pump unit according to claim 1, characterized in that The mud pump set further includes a mud pump lubrication system, a spray system, and a filling system. The mud pump lubrication system, the spray system, and the filling system are all connected to the mud pump.

3. The split-type new energy electric drive drilling mud pump unit according to claim 1, characterized in that The power unit further includes a combined gear reducer lubrication system and a lubricating oil tank. The combined gear reducer lubrication system includes a lubricating pump. The inlet of the lubricating pump is connected to the lubricating oil tank, the outlet of the lubricating pump is connected to the combined gear reducer, and the oil return port of the lubricating oil tank is connected to the bottom of the combined gear reducer.

4. The split new energy electric drive drilling mud pump set according to claim 1, wherein, The power unit further includes a heat dissipation system. The heat dissipation system uses an air-cooled radiator for heat dissipation.

5. The split-type new energy electric drive drilling mud pump set according to claim 1, characterized in that, A new energy vehicle-grade inverter is provided in the inverter cabinet. The motor is controlled by a PLC communication control system.

6. The split new energy electric drive drilling mud pump unit according to claim 1, characterized in that, The motor is a new energy vehicle-grade permanent magnet synchronous motor.

7. The split new energy electric drive drilling mud pump unit according to claim 1, wherein The coupling is a universal cross drive shaft or a universal ball cage coupling.

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