Control device and method for assisting turning

Abstract

The application relates to a control device and method for assisting disc turning. In the application, an interface module is arranged to be connected with an upper limit switch, a lower limit switch and a solenoid coil of the assisting disc turning respectively; meanwhile, a data acquisition module is arranged to acquire operation parameters of the assisting disc turning; in addition, a controller is arranged and connected with the data acquisition module and the interface module, so that the solenoid coil performs excitation control operation according to a first preset time length in the case that at least one of the upper limit switch and the lower limit switch fails; and further, a first coil control module is arranged to control the solenoid coil to perform excitation control operation in response to input operation of a user when the controller fails. Therefore, the control device can improve the reliability and stability of the assisting disc turning.

Description

Technical Field

[0001] This application relates to the field of auxiliary turning gear technology for steam turbines, and in particular to a control device and method for auxiliary turning gear. Background Technology

[0002] The auxiliary turning car is an important component of a nuclear power turbine. It is used as an independent device to turn the turbine rotor when the main turning car fails, in order to prevent the rotor from thermally bending. Therefore, it is necessary to ensure the normal operation of the auxiliary turning car.

[0003] In traditional technology, since the auxiliary turning gear is installed inside the No. 1 bearing housing of the steam turbine, maintenance personnel need to repair the auxiliary turning gear through the manhole when an abnormality occurs.

[0004] However, due to the extremely confined space at the maintenance site and the presence of a large amount of fire-resistant oil vapor inside the bearing housing, there is a risk of poisoning for maintenance personnel, as well as the risk of tools falling. Additionally, maintenance of the auxiliary turning gear may lead to critical path delays. Summary of the Invention

[0005] Therefore, it is necessary to provide a control device and method for auxiliary turning gear that can reduce various maintenance and operational risks caused by auxiliary turning gear malfunctions, in order to address the above-mentioned technical problems.

[0006] In a first aspect, this application provides a control device for assisting in turning the wheel, the control device comprising:

[0007] The interface module is used to connect to the upper limit switch, lower limit switch, and solenoid valve coil excitation of the auxiliary turning gear, respectively.

[0008] The data acquisition module is used to acquire the operating parameters of the auxiliary turning gear; the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal.

[0009] The controller is connected to the data acquisition module and the interface module respectively, and is used to control the solenoid valve coil to perform excitation control operation for a first preset duration in the event of a failure of at least one of the upper limit switch and the lower limit switch.

[0010] The first coil control module includes at least one first input unit for controlling the solenoid valve coil to perform excitation control operation in response to user input operation when the controller fails.

[0011] In one embodiment, the control device further includes:

[0012] The second coil control module includes at least one second input unit, which is used to control the solenoid valve coil to perform excitation control operation according to a second preset duration in response to the user's input operation when the controller is in operation; wherein the second preset duration is ahead of or behind the first preset duration.

[0013] In one embodiment, the solenoid valve coil includes a first coil and a second coil;

[0014] The first coil control module includes two first input units, wherein the two first input units respectively include a first coil control button and a second coil control button;

[0015] The second coil control module includes two second input units, wherein the two second input units respectively include a first coil control button and a second coil control button;

[0016] The first coil control button is used to control the first coil to perform excitation control operation, and the second coil control button is used to control the second coil to perform excitation control operation.

[0017] In one embodiment, the control device further includes:

[0018] The switching module is connected to both the controller and the first coil control module, and is used to control the switching between the controller and the first coil control module.

[0019] In one embodiment, the control device further includes:

[0020] The warning module, connected to the controller, is used to issue an alarm signal in the event of a controller malfunction.

[0021] A coil indicator module, connected to the solenoid valve coil, is used to indicate that the solenoid valve coil is in operation.

[0022] The limit indicator module is connected to the upper limit switch and the lower limit switch respectively, and is used to indicate whether the upper limit switch or the lower limit switch is in operation.

[0023] In one embodiment, the control device further includes:

[0024] The input display module, connected to the data acquisition module, is used to display the operating parameters of the auxiliary turning gear and to respond to user operation commands. The operation commands are used to configure the first preset duration.

[0025] In one embodiment, the interface module includes:

[0026] The upper limit switch interface is connected to the upper limit switch of the auxiliary turning gear.

[0027] The lower limit interface is connected to the lower limit switch of the auxiliary turning gear;

[0028] The coil interface is connected to the solenoid valve coil of the auxiliary turning gear;

[0029] Speed ​​measurement interface, connected to rotor speed sensor;

[0030] Power interface, for connecting to an external power source.

[0031] In one embodiment, the interface module further includes:

[0032] The communication interface is connected to the data processing terminal to transmit the operating parameters of the auxiliary turning gear to the data processing terminal.

[0033] In one embodiment, the controller is a programmable logic controller.

[0034] Secondly, this application also provides a control method for assisting in turning the gear, the method comprising:

[0035] Obtain the operating parameters of the auxiliary turning gear; among which, the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal;

[0036] The operating status of the upper limit switch and lower limit switch of the auxiliary turning gear is obtained according to the upper limit switch signal and the lower limit switch signal. In the event of a fault in at least one of the upper limit switch and the lower limit switch, the solenoid valve coil is controlled by the controller to perform excitation control operation for a first preset duration.

[0037] The operating state of the solenoid valve coil is obtained based on the excitation signal and demagnetization signal of the solenoid valve coil. When the solenoid valve coil is in an abnormal operating state, the first coil control module controls the solenoid valve coil to respond to the user's operation and perform excitation control operation.

[0038] The aforementioned auxiliary turning gear control device and method include at least an interface module, a data acquisition module, a controller, and a first coil control module. By setting up the interface module, which connects to the upper limit switch, lower limit switch, and solenoid valve coil of the auxiliary turning gear, the operating signals of each component can be stably transmitted, providing an accurate data foundation for subsequent control. Simultaneously, by setting up the data acquisition module, various operating parameters can be quickly collected and organized to determine the working status of each component of the auxiliary turning gear in real time, thereby making timely adjustments based on the working status. Furthermore, by setting up the controller, based on the operating parameters obtained from the data acquisition module, it can determine whether the limit switches are faulty, and when the limit switches fail, it can control the solenoid valve coil to perform excitation control operation for a first preset duration to maintain the normal operation of the auxiliary turning gear, thereby effectively preventing the main shaft from bending due to rotor overheating and thus effectively improving the stability and safety of the turbine unit. Further, by setting up the first coil control module, when the controller fails, it can respond to user input operations and control the solenoid valve coil to perform excitation control operation, thereby ensuring the normal operation of the auxiliary turning gear and improving the reliability and stability of the auxiliary turning gear operation. Therefore, through the cooperation of the controller and the first coil control module, the normal operation of the auxiliary turning gear can be guaranteed when it is abnormal, thereby improving the efficiency of on-site work and avoiding critical path delays caused by the maintenance of the abnormal auxiliary turning gear. At the same time, it is convenient for maintenance personnel to carry out maintenance on the auxiliary turning gear when the rotor is in the preset position, thereby reducing the risk of tools falling and personnel inhaling fire-resistant fuel vapors. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is an application environment diagram of the auxiliary turning gear control method in one embodiment;

[0041] Figure 2 This is a schematic diagram of the front panel of the control device in one embodiment;

[0042] Figure 3 This is a schematic diagram of an interface device in one embodiment;

[0043] Figure 4 This is a schematic diagram of the auxiliary turning gear operation logic in one embodiment;

[0044] Figure 5 This is a schematic diagram of the overall structure of the auxiliary turning gear control system in one embodiment;

[0045] Figure 6 This is a schematic diagram of intelligent analysis software in one embodiment;

[0046] Figure 7 This is a flowchart illustrating the control method for the auxiliary turning gear in another embodiment.

[0047] Explanation of reference numerals in the attached figures:

[0048] Control device 20;

[0049] Control device front panel 200, interface module 300;

[0050] Limit indicator module 210, upper limit indicator 211, lower limit indicator 212;

[0051] Second coil control module 220, first coil control button 221 of second coil control module 220, second coil control button 222 of second coil control module 220;

[0052] Coil indicator module 230, A coil indicator light 231, B coil indicator light 232;

[0053] First coil control module 240, first coil control button 241 of first coil control module 240, second coil control button 242 of first coil control module 240;

[0054] Switching module 251, running indicator light 252, standby indicator light 253, warning module 254, power indicator light 255, emergency stop button 256;

[0055] Input display module 260;

[0056] Handle 270;

[0057] Communication interface 310, A network port 311, B network port 312;

[0058] Limit interface 320, upper limit interface 321, lower limit interface 322;

[0059] Coil interface 330, coil A interface 331, coil B interface 332;

[0060] Power switch 340;

[0061] Speed ​​measurement interface 350;

[0062] 360° power interface;

[0063] Fan 370, exhaust fan 371, intake fan 372. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0065] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0066] The auxiliary turning gear control method provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, the auxiliary turning gear control device 102 communicates with the data processing terminal 104 via a network. The control device 102 can be connected to the auxiliary turning gear. Taking the execution of the control device 102 as an example, the control device 102 acquires the operating parameters of the auxiliary turning gear; wherein, the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal; based on the upper limit switch signal and the lower limit switch signal, the control device 102 acquires the operating status of the upper limit switch and the lower limit switch of the auxiliary turning gear; in the event of a fault in at least one of the upper limit switch and the lower limit switch, the control device controls the solenoid valve coil to perform an excitation control operation for a first preset duration; based on the solenoid valve coil excitation signal and the solenoid valve demagnetization signal, the control device acquires the operating status of the solenoid valve coil; in the event of an abnormal operating state of the solenoid valve coil, the control device controls the solenoid valve coil to respond to the user operation to perform an excitation control operation.

[0067] In one exemplary embodiment, please refer to Figure 2 and Figure 3 A control device 20 for assisting in turning the wheel is provided, comprising: an interface module 300, a data acquisition module, a controller, and a first coil control module 240;

[0068] The interface module 300 is used to connect to the upper limit switch, lower limit switch, and solenoid valve coil excitation of the auxiliary turning gear, respectively.

[0069] The data acquisition module is used to acquire the operating parameters of the auxiliary turning gear; among which, the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal.

[0070] The controller is connected to the data acquisition module and the interface module 300, respectively, and is used to control the solenoid valve coil to perform excitation control operation for a first preset duration in the event of a failure of at least one of the upper limit switch and the lower limit switch. The controller can be a programmable logic controller, such as a PLC controller.

[0071] The first coil control module 240 includes at least one first input unit for controlling the solenoid valve coil to perform excitation control operations in response to user input operations when the controller fails.

[0072] For example, please continue to refer to Figure 3 The interface module 300 contains multiple interfaces, each of which can be connected via cables to the upper limit switch, lower limit switch, solenoid valve coil, and turbine rotor excitation of the auxiliary turning gear. The solenoid valve coil includes solenoid valve A coil and solenoid valve B coil.

[0073] Specifically, a terminal block can be installed at the auxiliary turning gear position of the steam turbine. One end of the terminal block has a preset number of first connection interfaces, each of which can be connected to the upper limit switch, lower limit switch, solenoid valve A coil, solenoid valve B coil, and steam turbine rotor of the auxiliary turning gear via cables. The other end of the terminal block has the same number of second connection interfaces as the first end, each of which can be connected to each interface in the interface module 300 via cables. The first connection interfaces at one end of the terminal block correspond to the second connection interfaces at the other end, thus each interface in the interface module 300 can be connected to the upper limit switch, lower limit switch, solenoid valve coil, and steam turbine rotor of the auxiliary turning gear via the terminal block. For example, if the first connection interface A at one end of the terminal block is connected to the upper limit switch of the auxiliary turning gear, the second connection interface A' at the other end of the terminal block corresponding to the first connection interface A is connected to the upper limit interface 320 in the interface module 300, thereby completing the corresponding connection between the upper limit interface 320 in the interface module 300 and the upper limit switch of the auxiliary turning gear.

[0074] For example, the operating parameters of the auxiliary turning gear refer to the upper limit switch signal, lower limit switch signal, solenoid valve coil excitation signal, and solenoid valve demagnetization signal generated during the operation of the auxiliary turning gear. When the auxiliary turning gear is connected to the interface module 300 via a terminal block, when the auxiliary turning gear is running, the terminal block will collect the corresponding upper limit switch signal, lower limit switch signal, solenoid valve coil excitation signal, and solenoid valve demagnetization signal, and transmit the signals to the interface module 300. The interface module 300 then transmits the received signals to the data acquisition module, which can store the received signals according to a preset template and analyze the signals.

[0075] In this embodiment, for ease of explanation, an example is provided where the solenoid valve coil includes solenoid valve A coil and solenoid valve B coil. Please refer to... Figure 4 When the auxiliary turning gear starts running, when the lower limit switch closes, a feedback signal A is generated to control the energization of the solenoid valve A coil. After the upper limit switch receives the closing signal, the lower limit switch opens, and a feedback signal B is generated to control the energization of the solenoid valve B coil and the de-energization of the solenoid valve A coil. Then, when the lower limit switch receives the closing signal again, the upper limit switch opens, and a feedback signal A is generated again to control the energization of the solenoid valve A coil and the de-energization of the solenoid valve B coil. The upper and lower limit switches repeatedly perform closing and opening operations to control the repeated energization and de-energization of the solenoid valve A and solenoid valve B coils until the auxiliary turning gear stops moving. At this time, the turbine rotor has moved to the preset position.

[0076] For example, a fault in at least one of the upper and lower limit switches refers to a fault in either the upper or lower limit switch, or a fault in both. The controller is connected to both the data acquisition module and the interface module 300. Specifically, the data acquisition module analyzes the received signals. If it determines that at least one of the upper or lower limit switches is faulty, and the upper or lower limit switches cannot control the solenoid valve coil to normally energize or de-energize, the controller controls the solenoid valve coil to perform an excitation control operation for a first preset duration. The first preset duration can be the time difference between two consecutive energizations of the solenoid valve coils A and B when the upper and lower limit switches control the solenoid valve coil to normally energize or de-energize.

[0077] Specifically, a first preset time period can be set through the program. When the coil of solenoid valve A is energized, after the first preset time period, the controller sends a control signal B to the interface module 300, which is then transmitted to the auxiliary turning carriage to control the energization of the coil of solenoid valve B on the auxiliary turning carriage, while simultaneously de-energizing the coil of solenoid valve A. After another preset time period, the controller sends a control signal A to the auxiliary turning carriage to control the energization of the coil of solenoid valve A, while simultaneously de-energizing the coil of solenoid valve B; the controller repeats the above control operation.

[0078] For example, if the data acquisition module determines that the solenoid valve coil is not operating based on the received signal analysis, it indicates a controller malfunction. In this case, the controller cannot automatically control the solenoid valve coil to de-energize for the first preset duration. Therefore, the user can manually control the solenoid valve coil to perform energization control operations by operating the first input unit of the first coil control module 240. The first input unit can be a button; when the user presses the button, a control signal is triggered to control the solenoid valve coil of the auxiliary turning gear to de-energize.

[0079] In addition, the control device 20 is also equipped with a handle 270, and a corresponding independent toolbox can also be configured for the control device to facilitate carrying.

[0080] The aforementioned auxiliary turning gear control device includes at least an interface module, a data acquisition module, a controller, and a first coil control module. The interface module connects to the upper limit switch, lower limit switch, and solenoid valve coil of the auxiliary turning gear, enabling stable transmission of operating signals from each component and providing an accurate data foundation for subsequent control. Simultaneously, the data acquisition module quickly collects and organizes various operating parameters to determine the real-time operating status of each component of the auxiliary turning gear, allowing for timely adjustments based on the operating status. Furthermore, the controller determines whether the limit switches are faulty based on the operating parameters acquired from the data acquisition module. When a limit switch malfunctions, it controls the solenoid valve coil to perform excitation control for a first preset duration, maintaining the normal operation of the auxiliary turning gear. This effectively prevents shaft bending caused by rotor overheating and inability to turn the shaft, thus significantly improving the stability and safety of the turbine unit. Moreover, the first coil control module, in response to user input, controls the solenoid valve coil to perform excitation control when the controller malfunctions, ensuring the normal operation of the auxiliary turning gear and improving its reliability and stability. Therefore, through the cooperation of the controller and the first coil control module, the normal operation of the auxiliary turning gear can be guaranteed when it is abnormal, thereby improving the efficiency of on-site work and avoiding critical path delays caused by the maintenance of the abnormal auxiliary turning gear. At the same time, it is convenient for maintenance personnel to carry out maintenance on the auxiliary turning gear when the rotor is in the preset position, thereby reducing the risk of tools falling and personnel inhaling fire-resistant fuel vapors.

[0081] In one embodiment, the control device 20 further includes a second coil control module 220, which includes at least one second input unit for controlling the solenoid valve coil to perform excitation control operation for a second preset duration in response to a user input operation when the controller is in operation; wherein the second preset duration is ahead of or behind the first preset duration.

[0082] For example, when the controller is not malfunctioning, the controller controls the solenoid valve coil of the auxiliary turning gear to be energized or de-energized for a first preset duration. When the user needs to extend or shorten the energizing or de-energizing duration of the solenoid valve coil, the user can manually control the solenoid valve coil to continue performing the energizing or de-energizing control operation by operating the second input unit of the second coil control module 220. The second input unit can be a button; when the user presses the button, a control signal is triggered to control the energizing or de-energizing of the solenoid valve coil of the auxiliary turning gear.

[0083] For example, assuming the controller is functioning correctly, the controller sends control signal A to the auxiliary turning gear to energize the coil of solenoid valve A and simultaneously de-energize the coil of solenoid valve B. After a first preset time, the controller sends control signal B to the auxiliary turning gear to energize the coil of solenoid valve B and simultaneously de-energize the coil of solenoid valve A. At this point, if it is necessary to extend the energizing time of the coil of solenoid valve A, the user can operate the second input unit of the second coil control module 220 to continue energizing the coil of solenoid valve A. Therefore, under the current conditions, the time difference between the start of energizing the coil of solenoid valve A and the start of energizing the coil of solenoid valve B (i.e., the second preset time) is greater than the first preset time. Similarly, if it is necessary to reduce the energizing time of the coil of solenoid valve A, the user can operate the second input unit of the second coil control module 220 within the first preset time to de-energize the coil of solenoid valve A earlier and simultaneously energize the coil of solenoid valve B. Therefore, under the current conditions, the time difference between the start of energizing the coil of solenoid valve A and the start of energizing the coil of solenoid valve B (i.e., the second preset time) is less than the first preset time.

[0084] In this embodiment, by setting a second coil control module, the excitation and demagnetization operation of the solenoid valve coil can be adjusted in a timely manner according to the field conditions when the controller is running normally, thereby effectively improving the reliability of the auxiliary turning gear.

[0085] In one embodiment, the solenoid valve coil includes a first coil and a second coil;

[0086] The first coil control module 240 includes two first input units, wherein the two first input units respectively include a first coil control button 241 and a second coil control button 242;

[0087] The second coil control module 220 includes two second input units, wherein the two second input units respectively include a first coil control button 221 and a second coil control button 222;

[0088] The first coil control button is used to control the first coil to perform excitation control operation, and the second coil control button is used to control the second coil to perform excitation control operation.

[0089] In this case, the first coil can be the coil of solenoid valve A, and the second coil can be the coil of solenoid valve B; or the first coil can be the coil of solenoid valve B, and the second coil can be the coil of solenoid valve A.

[0090] The first coil control module 240 and the second coil control module 220 each include a first coil control button and a second coil control button. Specifically, the first coil control module 240 includes a first coil control button 241 and a second coil control button 242, and the second coil control module 220 also includes a first coil control button 221 and a second coil control button 222. Here, the two first input units of the first coil control module 240 are the first coil control button 241 and the second coil control button 242, and the two second input units of the second coil control module 220 are the first coil control button 221 and the second coil control button 222.

[0091] It should be noted that the first coil control button corresponds to the first coil, and the second coil control button corresponds to the second coil. That is, when the first coil is solenoid valve A coil and the second coil is solenoid valve B coil, the first coil control button is used to control solenoid valve A coil, and the control button is used to control solenoid valve B coil; when the first coil is solenoid valve B coil and the second coil is solenoid valve A coil, the first coil control button is used to control solenoid valve B coil, and the control button is used to control solenoid valve A coil.

[0092] For example, when the first coil is solenoid valve A coil and the second coil is solenoid valve B coil, if the controller cannot automatically control the solenoid valve coil to be energized or de-energized according to the first preset time, the user can press the first coil control button 241 of the first coil control module 240 to control the energization of solenoid valve A coil; after the preset time, such as the first preset time, the user can press the second coil control button 242 of the first coil control module 240 to control the energization of solenoid valve B coil and simultaneously control the de-energization of solenoid valve A coil.

[0093] For example, when the first coil is solenoid valve A coil and the second coil is solenoid valve B coil, when the controller automatically controls the solenoid valve coil to be energized or de-energized according to the first preset duration, the user can press the first coil control button 221 of the second coil control module 220 to control the solenoid valve A coil to extend or decrease the energization duration, and at the same time control the solenoid valve B coil to extend or decrease the de-energization duration; the user can also press the second coil control button 222 of the second coil control module 220 to control the solenoid valve A coil to extend or decrease the de-energization duration.

[0094] In this embodiment, by setting a first coil control button and a second coil control button in the first coil control module and the second coil control module respectively, the excitation state of the two coils can be manually adjusted according to the fault situation and actual needs. This ensures that the turning operation can be completed normally when the controller fails, and also allows the control parameters to be flexibly adjusted according to the on-site working conditions when the controller is running, thereby improving the flexibility of auxiliary turning control.

[0095] In one embodiment, the control device 20 further includes a switching module 251, which is connected to the controller and the first coil control module 240 respectively, and is used to control the switching between the controller and the first coil control module 240.

[0096] For example, in the event of a controller malfunction, the user can switch from the controller to the first coil control module 240 by rotating the switch key on the switching module 251, thereby controlling the solenoid valve coil to demagnetize or demagnetize through the first coil control module 240. When the controller is functioning normally, the user can switch from the first coil control module 240 to the controller by rotating the switch key on the switching module 251, thereby controlling the solenoid valve coil to demagnetize or demagnetize through the controller.

[0097] In this embodiment, by setting a switching module, it is possible to quickly switch between automatic control and manual control, effectively avoiding interruption of auxiliary turning gear operation due to controller failure, thereby ensuring the normal operation of the auxiliary turning gear.

[0098] In one embodiment, the control device 20 further includes:

[0099] The warning module 254 is connected to the controller and is used to issue an alarm signal in the event of a controller malfunction.

[0100] The coil indicator module 230 is connected to the solenoid valve coil and is used to indicate that the solenoid valve coil is in operation.

[0101] The limit indicator module 210 is connected to the upper limit switch and the lower limit switch respectively, and is used to indicate that the upper limit switch or the lower limit switch is in operation.

[0102] For example, the warning module 254 can be an alarm indicator light, which illuminates when the controller malfunctions. The warning module 254 can also be an alarm buzzer, which triggers an audible alarm when the controller malfunctions. The warning module 254 can also be an audible and visual alarm, which illuminates and triggers an audible alarm when the controller malfunctions. After the warning module 254 issues an alarm signal, the user can switch from the controller to the first coil control module 240 via the switching module 251, thus switching from controlling the solenoid valve coil energization / de-energization by the controller to controlling the solenoid valve coil energization / de-energization by the first coil control module 240.

[0103] For example, the coil indicator module 230 can be a coil indicator light, which includes an A coil indicator light 231 and a B coil indicator light 232. Specifically, when the data acquisition module receives the excitation signal of the solenoid valve A coil, it controls the A coil indicator light 231 to be lit and the B coil indicator light 232 to be off. When the data acquisition module receives the excitation signal of the solenoid valve B coil, it controls the B coil indicator light 232 to be lit and the A coil indicator light 231 to be off. It should be noted that the A coil indicator light 231 and the B coil indicator light 232 cannot be lit simultaneously.

[0104] For example, the limit indicator module 210 can be a limit indicator light, which includes an upper limit indicator light 211 and a lower limit indicator light 212. Specifically, when the data acquisition module receives an upper limit switch signal, if the upper limit switch signal is a closed signal, the upper limit indicator light 211 is controlled to be lit; if the upper limit switch signal is a closed signal, the upper limit indicator light 211 is controlled to be off. When the data acquisition module receives a lower limit switch closed signal, if the lower limit switch signal is a closed signal, the lower limit indicator light 212 is controlled to be lit; if the lower limit switch signal is a closed signal, the lower limit indicator light 212 is controlled to be off.

[0105] For example, the control device 20 also includes a running indicator light 252, a standby indicator light 253, a power indicator light 255, and an emergency stop button 256. When the control device 20 is turned on, if it is operating normally, both the power indicator light 255 and the running indicator light 252 are illuminated; if the control device 20 is not operating, both the power indicator light 255 and the standby indicator light 253 are illuminated. When an abnormal situation occurs during the operation of the control device 20, the emergency stop button 256 can be pressed to stop the control device 20 from operating.

[0106] In this embodiment, by setting up a warning module, a coil indicator module, and a limit indicator module, the operating status of each module of the control device can be fed back in real time, thereby facilitating operators to quickly locate the fault location and make timely adjustments, thus improving the convenience and safety of the control device operation.

[0107] In one embodiment, the control device 20 further includes an input display module 260, connected to the data acquisition module, for displaying the operating parameters of the auxiliary turning wheel and responding to user operation commands, the operation commands being used to configure a first preset duration.

[0108] For example, the input display module 260 can be a touch screen. When the data acquisition module receives the upper limit switch signal, lower limit switch signal, solenoid valve coil excitation signal, solenoid valve demagnetization signal, and turbine rotor speed from the auxiliary turning gear, the signal parameters can be displayed on the touch screen. Additionally, when the data acquisition module determines, based on the received signals, that the solenoid valve coil is not operating, the upper and lower limit switches have timed out, or the turbine shaft is stationary, an alarm will be triggered, and the corresponding alarm information can be displayed on the touch screen. Simultaneously, the user can set a first preset duration via the touch screen, causing the controller to control the solenoid valve coil excitation and demagnetization according to this preset duration.

[0109] In this embodiment, by setting an input display module, the operating status and parameter information of the auxiliary turning gear can be displayed intuitively, making it convenient for operators to check the working condition of the auxiliary turning gear in a timely manner. At the same time, the first preset duration can be directly set through the input display module, which improves the convenience of parameter adjustment.

[0110] In one embodiment, the interface module 300 includes: an upper limit interface 321 connected to the upper limit switch of the auxiliary turning gear; a lower limit interface 322 connected to the lower limit switch of the auxiliary turning gear; a coil interface 330 connected to the solenoid valve coil of the auxiliary turning gear; a speed measuring interface 350 connected to the rotor speed sensor; and a power interface 360 ​​connected to an external power source.

[0111] Optionally, the upper limit interface 321 is connected to the upper limit switch of the auxiliary turning carriage via a terminal block, for receiving the upper limit switch signal and transmitting the upper limit switch signal to the data acquisition module. The lower limit interface 322 is connected to the lower limit switch of the auxiliary turning carriage via a terminal block, for receiving the lower limit switch signal and transmitting the lower limit switch signal to the data acquisition module.

[0112] Optionally, the coil interface 330 includes a coil A interface 331 and a coil B interface 332. The coil A interface 331 is connected to the solenoid valve A coil of the auxiliary turning carriage via a terminal block, for receiving signals from the solenoid valve A coil and transmitting these signals to the data acquisition module. Simultaneously, the coil A interface 331 is also used to send solenoid valve A coil control signals generated by the controller, the first coil module, or the second coil module to the auxiliary turning carriage to control the energization / de-energization of the solenoid valve A coil. The coil B interface 332 is connected to the solenoid valve B coil of the auxiliary turning carriage via a terminal block, for receiving signals from the solenoid valve B coil and transmitting these signals to the data acquisition module. Simultaneously, the coil B interface 332 is also used to send solenoid valve B coil control signals generated by the controller, the first coil module, or the second coil module to the auxiliary turning carriage to control the energization / de-energization of the solenoid valve B coil.

[0113] Optionally, the speed measurement interface 350 can be connected to a rotor speed sensor to receive the rotor speed collected by the rotor speed sensor and transmit the rotor speed to the data acquisition module. The speed measurement interface 350 can also be connected to the turbine rotor via a terminal block to receive the rotor speed and transmit the rotor speed to the data acquisition module.

[0114] Optionally, the control device 20 is internally equipped with a dual 48V and 24V switching power supply, which can convert 220V AC power into DC power. The control device 20 can be connected to an external power source via power interface 360 ​​to supply 220V AC power from the external power source to the switching power supply.

[0115] In addition, the interface device 300 also includes a fan 370, which specifically includes an exhaust fan 371 and an intake fan 372. The interface device 300 also includes a power switch 340, which the user can use to activate the control device 20.

[0116] In this embodiment, by setting multiple interfaces that are compatible with external devices, it is possible to quickly connect with various components of the auxiliary turning gear, which reduces the difficulty of implementation and also ensures the stability and reliability of signal transmission.

[0117] In one embodiment, the interface module 300 further includes a communication interface 310, which is connected to the data processing terminal and is used to transmit the operating parameters of the auxiliary turning gear to the data processing terminal.

[0118] For example, please refer to Figure 5 The communication interface 310 may include an A network port 311 and a B network port 312, and the data processing terminal may be a computer equipped with intelligent analysis software. The data processing terminal is connected to the control device 20 via the communication interface 310, and can receive and acquire the operating parameters of the auxiliary turning gear stored in the data acquisition module through the communication interface 310. After receiving the operating parameters, the data processing terminal can calculate, analyze, and process the operating parameters to generate diagnostic reports, thereby judging the operating status of the auxiliary turning gear. In addition, the data processing terminal can also store data according to a preset template and print reports according to a preset template. Simultaneously, the data processing terminal can also read imported historical data to troubleshoot, locate, and trace faults in the auxiliary turning gear.

[0119] For example, the intelligent analysis software of the data processing terminal is equipped with an autonomous alarm mechanism, which can trigger an alarm when it detects that the solenoid valve coil is not operating or the limit switch has timed out. Additionally, please refer to... Figure 6The control device 20 can be remotely controlled through the operation interface of the intelligent analysis software. That is, the user can control the first coil control module 240, the controller, and the second coil control module 220 through the intelligent analysis software to control the normal operation of the auxiliary turning gear. At the same time, the intelligent analysis software can display the received signal parameters through the signal display interface, including the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation and demagnetization signal, and the rotor speed.

[0120] In this embodiment, by setting up a communication interface and connecting to a data processing terminal, the operating data of the auxiliary turning gear can be calculated and analyzed, thereby realizing a high degree of automation and intelligence of the device.

[0121] In one embodiment, such as Figure 7 As shown, an auxiliary turning gear control method is provided, including steps 702 to 706. Wherein,

[0122] Step 702: Obtain the operating parameters of the auxiliary turning gear; wherein, the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal;

[0123] Step 704: Obtain the operating status of the upper limit switch and lower limit switch of the auxiliary turning gear according to the upper limit switch signal and the lower limit switch signal. In the event of a fault in at least one of the upper limit switch and lower limit switch, control the solenoid valve coil to perform excitation control operation for a first preset duration through the controller.

[0124] Step 706: Obtain the working state of the solenoid valve coil based on the solenoid valve coil excitation signal and the solenoid valve demagnetization signal. If the solenoid valve coil is in an abnormal working state, control the solenoid valve coil to respond to the user operation and perform excitation control operation through the first coil control module.

[0125] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0126] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0127] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A control device for assisting in turning the wheel, characterized in that, The control device includes: The interface module is used to connect to the upper limit switch, lower limit switch, and solenoid valve coil excitation of the auxiliary turning gear, respectively. The data acquisition module is used to acquire the operating parameters of the auxiliary turning gear; wherein, the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal; The controller is connected to the data acquisition module and the interface module respectively, and is used to control the solenoid valve coil to perform excitation control operation for a first preset duration in the event of a fault in at least one of the upper limit switch and the lower limit switch. The first coil control module includes at least one first input unit, which, in the event of a controller failure, controls the solenoid valve coil to perform excitation control operations in response to user input.

2. The apparatus according to claim 1, characterized in that, The control device further includes: The second coil control module includes at least one second input unit, which, when the controller is in operation, responds to the user's input operation and controls the solenoid valve coil to perform excitation control operation for a second preset duration; wherein the second preset duration is ahead of or behind the first preset duration.

3. The apparatus according to claim 2, characterized in that, The solenoid valve coil includes a first coil and a second coil; The first coil control module includes two first input units, wherein the two first input units respectively include a first coil control button and a second coil control button; The second coil control module includes two second input units, wherein the two second input units respectively include a first coil control button and a second coil control button; The first coil control button is used to control the first coil to perform excitation control operation, and the second coil control button is used to control the second coil to perform excitation control operation.

4. The apparatus according to claim 3, characterized in that, The control device further includes: A switching module is connected to both the controller and the first coil control module, and is used to control the switching between the controller and the first coil control module.

5. The apparatus according to claim 1, characterized in that, The control device further includes: An alarm module, connected to the controller, is used to issue an alarm signal in the event of a malfunction in the controller; A coil indicator module, connected to the solenoid valve coil, is used to indicate that the solenoid valve coil is in operation. The limit indicator module is connected to the upper limit switch and the lower limit switch respectively, and is used to indicate that the upper limit switch or the lower limit switch is in operation.

6. The apparatus according to claim 5, characterized in that, The control device further includes: An input display module, connected to the data acquisition module, is used to display the operating parameters of the auxiliary turning wheel and respond to user operation commands, wherein the operation commands are used to configure the first preset duration.

7. The apparatus according to claim 1, characterized in that, The interface module includes: The upper limit position interface is connected to the upper limit position switch of the auxiliary turning gear; The lower limit interface is connected to the lower limit switch of the auxiliary turning gear; The coil interface is connected to the solenoid valve coil of the auxiliary turning gear; Speed ​​measurement interface, connected to rotor speed sensor; Power interface, for connecting to an external power source.

8. The apparatus according to claim 1, characterized in that, The interface module also includes: The communication interface is connected to the data processing terminal and is used to transmit the operating parameters of the auxiliary turning wheel to the data processing terminal.

9. The apparatus according to claim 1, characterized in that, The controller is a programmable logic controller.

10. A control method for auxiliary turning gears, characterized in that, The method includes: Obtain the operating parameters of the auxiliary turning gear; wherein, the operating parameters include the upper limit switch signal, the lower limit switch signal, the solenoid valve coil excitation signal, and the solenoid valve demagnetization signal; The operating status of the upper limit switch and the lower limit switch of the auxiliary turning gear is obtained according to the upper limit switch signal and the lower limit switch signal. In the event of a fault in at least one of the upper limit switch and the lower limit switch, the controller controls the solenoid valve coil to perform excitation control operation for a first preset duration. The operating state of the solenoid valve coil is obtained based on the excitation signal and the demagnetization signal of the solenoid valve coil. When the solenoid valve coil is in an abnormal operating state, the first coil control module controls the solenoid valve coil to respond to the user operation and perform excitation control operation.

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