Integrated fracturing command shelter centralized control system
The centralized control system, composed of a multi-turn absolute encoder and a drive motor, solves the problem of low control accuracy of the folding floor of the traditional fracturing command cabin, achieving efficient and stable control in harsh environments, adapting to complex terrain and heavy loads, and improving operational efficiency.
Patent Information
- Application Number
- CN202423320115.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The traditional folding floor control system of the fracturing command cabin is not accurate in harsh environments and is easily affected by environmental interference, which can lead to sensor failure or increased error, making it difficult to meet the requirements of efficient and stable control.
The centralized control system consists of a multi-turn absolute encoder, a drive motor, a PLC controller, a servo driver, and a reducer. It achieves high-precision control of the folding floor through a photoelectric sensor array and an encoder disk. The encoder records the number of rotations and position information of the drive motor, the PLC controller calculates the motion state, the servo driver controls the motor power, the reducer increases the torque, and the braking mechanism ensures stable operation.
It enables precise control of folding floors in harsh environments, improves system reliability and efficiency, adapts to complex terrain and heavy loads, reduces the risk of failure, and improves operational efficiency.
Smart Images
Figure CN223513479U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of folding floor control system of fracturing command shelter, and specifically relates to integrated fracturing command shelter centralized control system. BACKGROUND
[0002] In the field of oil exploitation and natural gas development, fracturing operation, as one of the key technologies to improve the productivity of oil and gas wells, is increasingly important. With the continuous progress of technology and the continuous expansion of operation scale, the requirements for command and control system of fracturing operation are becoming more and more strict. As the core command and control platform in fracturing operation, fracturing command shelter not only needs to carry a large number of professional equipment and technical personnel, but also needs to ensure efficient and stable operation in complex and variable operation environment.
[0003] Traditional fixed fracturing command shelter is often limited in space and layout in design, which is difficult to adapt to the high requirements of flexibility and space utilization of large-scale fracturing operation. Especially in remote and inconvenient oil and gas field areas, the transportation, installation and subsequent maintenance of fixed shelter are costly, and it is difficult to meet the needs of rapid deployment and flexible adjustment.
[0004] In order to overcome these challenges, fracturing command shelter with unfolding and folding functions emerges as the times require. This kind of shelter, through ingenious design, realizes compact folding when not in use, facilitating transportation and storage, and quick unfolding when needed, providing spacious and comfortable working space. The floor design usually includes movable floor and fixed floor, which are connected by hinge and unfolded or folded through transmission mechanism (such as relative movement of gear and rack).
[0005] In order to accurately control the unfolding or folding degree of folding floor, traditional scheme usually adopts sensor for monitoring. Mechanical sensor, such as spring detection, although simple structure and low cost, but because of the relatively low frequency of unfolding or folding operation of folding floor in the process of using fracturing command shelter, the spring is in the fixed state of elongation or compression for a long time, which is easy to cause spring fatigue, and then affect the accuracy of position detection. Although photoelectric sensor has the advantages of high precision and high sensitivity, its performance is greatly reduced in the field environment of oil exploitation or natural gas development. On the one hand, the harsh environmental conditions, such as extreme low temperature and dust pollution, are easy to cause sensor failure or error increase; on the other hand, the transmission mechanism is directly exposed to the environment, which not only increases the maintenance difficulty of sensor, but also further increases the failure risk of sensor.
[0006] Therefore, there is an urgent need for a centralized control system to control the length change of folding floor with high precision and high reliability, so as to promote the widespread use of integrated fracturing command shelter with unfolding and folding functions. UTILITY MODEL CONTENT
[0007] The utility model intends to provide integrated fracturing command shelter centralized control system, with prior art cannot realize accurate control integrated fracturing command shelter's length change control of folding floor under severe environment.
[0008] In order to achieve the above object, the utility model adopts the following technical scheme: integrated fracturing command shelter centralized control system, including the transmission mechanism for carrying out folding floor unfolding or folding, the driving motor and the multi-turn absolute value encoder for providing power for transmission mechanism, transmission mechanism is connected with driving motor, and multi-turn absolute value encoder is installed on motor shaft of driving motor, and multi-turn absolute value encoder is used to record the rotation number and current position information of driving motor and sends out pulse signal;
[0009] The centralized control system further includes PLC controller for receiving pulse signal and calculating transmission mechanism motion state, servo driver for controlling electric energy supply and signal transmission and power supply system for providing electric energy;Power supply system is connected with servo driver, PLC controller is connected with servo driver, and multi-turn absolute value encoder and driving motor are connected with servo driver respectively.
[0010] The principle and advantages of the scheme are: in practical application, the main shaft of multi-turn absolute value encoder is connected with the output shaft of driving motor, when the output shaft of driving motor rotates to drive transmission mechanism motion, the encoding disc also produces corresponding relative displacement, and the light signal formed by scale line is read by photoelectric sensor array through illuminating the encoding disc by light source.
[0011] When needing to control the unfolding or folding of fracturing command shelter folding floor, PLC controller sends control signal to servo driver according to preset program and parameter. After receiving the signal, servo driver controls driving motor to start rotating and drives transmission mechanism (such as gear and rack) to move. Meanwhile, multi-turn absolute value encoder records the rotation number and current position information of driving motor in real time and sends out pulse signal. After receiving these pulse signals, PLC controller can accurately reflect the motion state of transmission mechanism after calculation and processing. According to these information, PLC controller can further adjust control signal to realize accurate control of transmission mechanism.
[0012] Multi-turn absolute encoder has the characteristics of high precision and high resolution, and can realize accurate control of the motion state of the transmission mechanism. Since the multi-turn absolute encoder can record the absolute position information of the driving motor, it can accurately restore to the previous position even after the system is powered off or restarted, improving the reliability of the system. The encoder disc, light source and photoelectric sensor array of the multi-turn absolute encoder are packaged in the shell, effectively preventing external environmental interference such as extreme low temperature and dust pollution, thereby ensuring stable operation of the system. By accurately controlling the unfolding or folding degree of the folding floor, the working space of the fracturing command shelter can be quickly adjusted, thereby improving the operation efficiency.
[0013] As an improvement, the centralized control system further comprises a speed reducer for increasing torque, and the output end of the driving motor is connected with the transmission mechanism through the speed reducer.
[0014] The beneficial effect of this improvement is that the speed reducer converts the high-speed low-torque output of the driving motor into low-speed high-torque output, which not only improves the transmission efficiency, but also better adapts to the large force required during the floor unfolding or folding process. Therefore, this improvement enables the system to maintain stable performance and reliable operation when facing heavy loads or complex terrain.
[0015] As an improvement, the number of encoder discs of the multi-turn absolute encoder is greater than or equal to 3, and the number of tracks of a single encoder disc is greater than or equal to 2 24 .
[0016] The beneficial effect of this improvement is that the control accuracy of the system has been significantly improved, and the combination of multiple encoder discs and multiple tracks enables the system to record more position information, thereby achieving more subtle and accurate control of the floor movement.
[0017] As an improvement, the rated output power of the driving motor is 2.3kw, the rated speed is 1500Rpm, the rated torque is 15N.m, the maximum torque is 30N.m, and the inertia is 2.77×10 -3 Kg.m 2 .
[0018] The beneficial effect of this improvement is that the driving motor has a built-in anti-blocking function. When the output torque of the driving motor is greater than a preset value, the system will determine that the transmission mechanism may be disturbed by the external environment and cannot be normally driven. At this time, the driving motor will automatically stop rotating to avoid further damage or failure. This improvement not only improves the safety and reliability of the system, but also reduces the production loss caused by accidental shutdown.
[0019] As an improvement, the insulation class of the driving motor is Class F, and the protection level is IP65.
[0020] The improved beneficial effects are: Class F insulation level means that the motor can withstand higher operating temperature, thereby improving the durability and reliability of the motor. The IP65 protection level ensures that the motor has good performance in dustproof and waterproof, and can maintain stable operation even in dusty, humid or humid oil and gas field environment.
[0021] As an improvement, the brake mechanism for locking the output shaft of the driving motor is further connected between the driving motor and the speed reducer, and the brake mechanism is controlled to operate by the PLC controller.
[0022] The improved beneficial effects are: when the PLC controller 3 calculates that the folding floor has been unfolded or folded to the position, the driving motor 1 needs to stop working, the PLC controller 3 sends a brake signal to the servo driver 4, the servo driver 4 transmits the brake instruction to the brake mechanism, and the brake mechanism executes the instruction to lock the output shaft of the driving motor 1. When the brake mechanism is in the locked state, the folding floor is prevented from being unfolded or folded by gravity due to the inclination of the ground where the fracturing command shelter is located. When the PLC controller 3 calculates that the driving motor 1 needs to operate, the PLC controller 3 sends a stop brake signal to the servo driver 4, the servo driver 4 transmits the unlock instruction to the brake mechanism, and the brake mechanism executes the instruction to unlock the output shaft of the driving motor 1.
[0023] As an improvement, the transmission mechanism is provided with a stop block, and the folding floor abuts against the stop block when the folding floor is in a fully unfolded state. The driving motor monitors the output torque of the driving motor in real time, and the driving motor automatically stops rotating when the output torque is greater than a preset value.
[0024] The improved beneficial effects are: for example, the transmission mechanism includes a gear and a rack, the folding floor is installed on the gear, and the folding floor is unfolded and folded with the movement of the gear on the rack. The stop block is arranged at the farthest position of the gear along the rack, i.e. the end of the fully unfolded folding floor. When the folding floor is fully unfolded, the folding floor abuts against the stop block on one side, and the rotation of the gear needs to overcome a large resistance. If a certain link in the PLC control process is wrong, the driving motor 1 fails to receive the instruction to stop working in time, and the output torque of the driving motor 1 increases. When the output torque of the driving motor 1 is greater than a preset value, the driving motor 1 is automatically stopped by the anti-blocking function of the driving motor 1, thereby realizing self-protection. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 The system structure schematic diagram of the embodiment of the utility model. DETAILED DESCRIPTION
[0026] The following will be further described in detail through specific embodiments:
[0027] The reference signs in the attached drawings of the specification include: a driving motor 1, a multi-turn absolute encoder 2, a PLC controller 3, a servo driver 4, a speed reducer 5, a power supply system 6 and a transmission mechanism 7.
[0028] Embodiment
[0029] Basically as shown in the attached Figure 1 In order to facilitate the fracturing command for oil exploitation or natural gas development, a foldable or unfolded fracturing command shelter is now provided, the floor of the fracturing command shelter includes a fixed floor and a movable floor, the fixed floor and the movable floor are hinged, and the unfolding or folding of the fixed floor and the movable floor relies on the relative movement of the transmission mechanism 7 mechanism, such as gears and racks. By controlling the rotation of the gear, the unfolding or folding action of the floor of the fracturing command shelter is realized.
[0030] In order to better control the rotation of the transmission mechanism 7, the present scheme discloses a centralized control system for the fracturing command shelter, which comprises: a driving motor 1, the driving motor 1 is used to provide power for the transmission mechanism 7, and the driving motor 1 is a servo motor; a multi-turn absolute encoder 2 is installed on the motor shaft of the driving motor 1, and the multi-turn absolute encoder 2 is used to monitor the number of rotations of the driving motor 1.
[0031] In order to achieve the final effect, the driving motor 1 of the embodiment adopts customized parameters, the rated output power of the driving motor 1 is 2.3kw, the rated speed is 1500Rpm, the rated torque is 15N.m, the maximum torque is 30N.m, the inertia is, and the insulation level is Class F, and the protection level is IP65. The driving motor 1 can realize the self anti-blocking function, by monitoring the operation of the driving motor 1, when the output torque of the driving motor 1 is greater than the preset value, it is judged that the transmission mechanism 7 may be disturbed by the external environment, and cannot be normally driven, at this time the driving motor 1 automatically stops rotating, and realizes self-protection.
[0032] The multi-turn absolute encoder 2 includes a plurality of encoding discs, a light source and a photoelectric sensor array; the encoding discs are alternately arranged by transparent grids, and there are equal-interval optical scale lines on the rings, so that the mode of each position is unique, and different encoding discs represent different position accuracy levels, and the multi-turn absolute encoder 2 combined by a plurality of encoding discs can realize high-precision rotation position recording. In the embodiment, in order to realize high-precision floor unfolding or folding control, the number of encoding discs of the multi-turn absolute encoder 2 is greater than or equal to 3, and the number of tracks of a single encoding disc is greater than or equal to 2 24 .
[0033] The light source of the multi-turn absolute encoder 2 is used to illuminate the encoder disc, which can adopt LED, and the photoelectric sensor array is used to face each track of the encoder disc to read the position pattern illuminated on the encoder disc by the light source and convert it into a pulse electrical signal. The main shaft of the multi-turn absolute encoder 2 is connected with the output shaft of the driving motor 1, when the output shaft of the driving motor 1 rotates to drive the transmission mechanism 7 to move, the encoder disc will also produce corresponding relative displacement, through the light source to illuminate the encoder disc, and the light signal formed by the scale line is read by the photoelectric sensor array. The encoder disc, light source and photoelectric sensor array of the multi-turn absolute encoder 2 are all packaged in the shell, so that the operation of the multi-turn absolute encoder 2 is not disturbed by the external environment.
[0034] The integrated fracturing command shelter centralized control system further comprises a PLC controller 3, a servo driver 4, a speed reducer 5 and a power supply system 6. The power supply system 6 is used to provide single-phase 220V or three-phase 380V power supply, and the power supply is connected with the servo driver 4 to provide the required power supply of the system. The PLC controller 3 is connected with the servo driver 4 to control the accurate transmission of the control signal and the feedback signal. The servo driver 4 is connected with the multi-turn absolute encoder 2 and the driving motor 1 respectively, used to control the power supply to the multi-turn absolute encoder 2 and the driving motor 1, and receive the pulse signal collected by the multi-turn absolute encoder 2. The output end of the driving motor 1 is connected with the transmission mechanism 7 through the speed reducer 5, and the speed reducer 5 is used to reduce the output rotating speed of the driving motor 1 to increase the torque output to the transmission mechanism 7. The speed reduction ratio of the speed reducer 5 used in the embodiment is 100:1.
[0035] In actual application, the power supply system 6 continuously provides power to the servo driver 4, and the servo driver 4 controls the power distribution to the PLC controller 3, the multi-turn absolute encoder 2, the driving motor 1 and the like. When it is needed to control the folding floor to be unfolded or folded, the PLC sends a start instruction to the servo driver 4. After receiving the instruction, the servo driver 4 supplies power to the driving motor 1, and the driving motor 1 starts to operate. The multi-turn absolute encoder 2 collects the rotating number and the current position information of the driving motor 1 in real time, and feeds back to the servo driver 4 in the form of pulse signal. The servo driver 4 receives the pulse signal and transmits it to the PLC controller 3, and the PLC controller 3 calculates the rotating number of the driving motor 1 and the length of the folding floor unfolded or folded by the corresponding preset algorithm and program.
[0036] The PLC continuously monitors the running state of the driving motor 1 and the feedback signal of the multi-turn absolute encoder 2 to ensure that the folding floor can be unfolded at the expected speed and position. When the PLC calculates that the folding floor has been unfolded or folded to the preset position, it will send a stop instruction to the servo driver 4. After receiving the instruction, the servo driver 4 disconnects the power supply to the driving motor 1, and the driving motor 1 stops rotating. At this time, the folding floor has been stably unfolded to the specified position.
[0037] Throughout the entire working process, the PLC continuously monitors the system state, including the motor current, temperature and other parameters. If an abnormality or failure occurs, such as a locked-rotor condition, the PLC will immediately take measures, such as stopping and alarming, to ensure the safe operation of the system.
[0038] A brake mechanism is also provided between the power transmission connection between the drive motor 1 and the speed reducer 5, and the brake mechanism is electrically connected with the servo driver 4, and the brake mechanism is controlled by the PLC controller 3. When the PLC controller 3 calculates that the folding floor has been unfolded or folded to the position, and the drive motor 1 needs to stop working, the PLC controller 3 sends a brake signal to the servo driver 4, the servo driver 4 transmits the brake instruction to the brake mechanism, and the brake mechanism executes the instruction to lock the output shaft of the drive motor 1. When the brake mechanism is in the locked state, it avoids the folding floor from being unfolded or folded by gravity due to the tilting of the ground where the command shelter is located. When the PLC controller 3 calculates that the drive motor 1 needs to run, the PLC controller 3 sends a stop brake signal to the servo driver 4, the servo driver 4 transmits the unlock instruction to the brake mechanism, and the brake mechanism executes the instruction to unlock the output shaft of the drive motor 1.
[0039] In this embodiment, the brake mechanism is a mechanical brake, which realizes the brake function through mechanical components such as friction plates or brake discs. When braking is needed, the friction plates or brake discs come into contact with the rotor or the shell of the drive motor and generate friction force, thereby preventing the rotation thereof.
[0040] A stop block is provided at the end of the folding floor displacement thread on the transmission mechanism. For example, the transmission mechanism includes a gear and a rack, the folding floor is mounted on the gear, and the folding floor is unfolded and folded along with the movement of the gear on the rack. A stop block is provided at the farthest end of the gear along the rack, i.e. the end of the complete unfolding of the folding floor. When the folding floor is completely unfolded, the side of the folding floor abuts against the stop block, and the rotation of the gear needs to overcome a large resistance. If a certain link in the PLC control process is wrong, resulting in that the drive motor 1 fails to receive the instruction to stop working in time, at this time the output torque of the drive motor 1 increases, and the anti-locking function of the drive motor 1 is activated when it is monitored that the output torque of the drive motor 1 is greater than a preset value, the drive motor 1 automatically stops rotating to realize self-protection.
[0041] The above only is the embodiment of the present application, and the well-known specific technical solutions and / or common knowledge in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.
Claims
1. An integrated fracturing command shelter centralized control system, characterized in that: The transmission mechanism for folding floor unfolding or folding, the driving motor for providing power for the transmission mechanism, and the multi-turn absolute encoder are included, the transmission mechanism is connected with the driving motor, the multi-turn absolute encoder is installed on the motor shaft of the driving motor, and the multi-turn absolute encoder is used for recording the number of turns and current position information of the driving motor and emitting a pulse signal; The centralized control system further comprises a PLC controller for receiving the pulse signal and calculating the motion state of the transmission mechanism, a servo driver for controlling the power supply and transmitting signals, and a power supply system for providing power; the power supply system is connected with the servo driver, the PLC controller is connected with the servo driver, and the multi-turn absolute encoder and the driving motor are respectively connected with the servo driver.
2. The self-contained fracturing command shelter centralized control system of claim 1, wherein: The centralized control system further comprises a speed reducer for increasing torque, and the output end of the driving motor is connected with the transmission mechanism through the speed reducer.
3. The self-contained fracturing command shelter centralized control system of claim 2, wherein: The number of the encoding disks of the multi-turn absolute value encoder is greater than or equal to 3, and the number of tracks of a single encoding disk is greater than or equal to 2 24 .
4. The self-contained fracturing command shelter centralized control system of claim 3, wherein: The rated output power of the driving motor is 2.3kw, the rated rotating speed is 1500Rpm, the rated torque is 15N.m, the highest torque is 30N.m, the inertia is 2.77x10 -3 Kg.m 2 .
5. The self-contained fracturing command shelter centralized control system of claim 4, wherein: The insulation level of the driving motor is Class F, and the protection level is IP65.
6. The self-contained fracturing command shelter centralized control system of claim 5, wherein: The brake mechanism for locking the output shaft of the driving motor is further connected between the driving motor and the speed reducer, and the brake mechanism is controlled to operate by the PLC controller.
7. The self-contained fracturing command shelter centralized control system of claim 6, wherein: The transmission mechanism is provided with a stop block, the folding floor is in abutment with the stop block when the folding floor is in a completely unfolded state, the driving motor monitors the output torque of the driving motor in real time, and the driving motor automatically stops rotating when the output torque is greater than a preset value.