Omnibearing anti-misoperation system suitable for safety production of hydraulic power plant

Abstract

The invention belongs to the technical field of water and electricity control, and discloses an omnibearing anti-misoperation system suitable for safety production of a hydraulic power plant, which is characterized in that an existing electrical anti-misoperation function is optimized, and meanwhile, a mechanical coding lock anti-misoperation function, a cross operation management function, a ground wire intelligent management function and an operation ticket rapid billing function are added; omnibearing safety management and control of operation and maintenance, operation and overhaul operation of electric and mechanical equipment of the hydraulic power plant are achieved. The system can effectively prevent accidents caused by misoperation of equipment valves by personnel and cross operation, improves the efficiency and accuracy of ground wire management and operation order issuing, changes the defects of traditional safety management means, comprehensively guarantees safe production of hydraulic power plants, and reduces the possibility of accidents.

Description

Technical Field

[0001] This application belongs to the field of hydropower control technology, and in particular relates to a comprehensive anti-misoperation system suitable for safe production in hydropower plants. Background Technology

[0002] In the daily production and operation of hydropower plants, the safety management of the maintenance, operation, and repair of electrical and mechanical equipment is crucial. However, existing technologies have many shortcomings and cannot achieve comprehensive safety control.

[0003] Regarding mechanical operation, critical components such as pressurized valves and pressure relief valves lack effective control measures to prevent misoperation. Poor management of overlapping work processes can easily lead to problems with safety management measures, such as misoperation, unauthorized alteration, or cancellation of safety measures on work permits, which can affect on-site maintenance work and even cause accidents. Existing mechanical locks lack intelligent linkage with the system, making it impossible to achieve closed-loop control of the operation process and real-time status feedback.

[0004] In maintenance operation management, there are loopholes in the safety control of overlapping operations. The operational status of equipment units cannot be effectively monitored in real time, and the management of overlapping operations lacks scientific auxiliary modules, easily leading to safety risks caused by inconsistent operational status requirements or conflicting work content. Existing systems rely solely on status judgments to identify operational conflicts, lacking a systematic keyword search mechanism, making it difficult to address hidden risks. Furthermore, there are shortcomings in the management of grounding wires and the issuance of operation tickets. The location and status of grounding wires cannot be transmitted back to the central control room in real time, and the installation and removal sequence lacks effective control; the process of generating operation tickets is cumbersome, requiring a large amount of information to be filled in manually, which is inefficient and prone to errors. Summary of the Invention

[0005] This application discloses a comprehensive error prevention system applicable to the safe production of hydropower plants, which realizes comprehensive safety management of the operation, maintenance and repair of electrical and mechanical equipment and prevents accidents from occurring.

[0006] In a first aspect, this application provides a comprehensive anti-misoperation system suitable for safe production in hydropower plants, including a microcomputer-based anti-misoperation system, the microcomputer-based anti-misoperation system comprising: The central control server connects to the anti-misoperation host, mobile terminals, and field sensing devices. The mechanical lock anti-misoperation module is used to install mechanical coded locks on pressurized valves, pressure relief valves and operating buttons, and to establish a virtual mapping of the corresponding equipment in the system wiring diagram; The cross-operation management module is used to verify the consistency of the execution status of multiple work orders for the same equipment unit and to detect conflicts in the work content; The intelligent grounding wire management module is used to monitor the grounding wire status in real time through wireless sensors and to force control the installation and removal sequence. The electronic operation ticket generation module automatically generates standardized operation tickets based on a pre-set library of primary equipment and secondary control power supplies.

[0007] Furthermore, the mechanical lock anti-misoperation module is used for: The wiring diagrams for the plant's oil, gas, and water systems are established in the microcomputer-based anti-misoperation system, and important pressurized valves, pressure relief valves, operating handles, and buttons are displayed in the wiring diagrams.

[0008] Furthermore, the mechanical lock anti-misoperation module is used for: The operation is simulated on the wiring diagram. After the operation is successful, the operation task is transmitted to the electronic unlocking key. After the operation is completed, the operation task is transmitted back through the electronic unlocking key. The valve in the system wiring diagram changes color to indicate its position status.

[0009] Furthermore, it also includes: The electronic unlocking key will fail to unlock and will sound an alarm if it detects a mismatch with the mechanical coded lock; it can only unlock normally when a match is found.

[0010] Furthermore, the cross-task management module is used for: A connection diagram is formed based on the equipment units, and the number of operations or tasks for each equipment unit is displayed in real time.

[0011] Furthermore, the cross-task management module is used for: The system retrieves and identifies job content, enters conflicting and prohibited tasks into the system program, automatically identifies job content during invoicing, and automatically prohibits invoicing and displays a pop-up notification when a conflict is detected.

[0012] Furthermore, the prohibited work in conflict includes painting, brushing, and coating operations with welding, hot work, cutting, grinding, shaving operations, sweeping, dust removal, cleaning, power outage operations with voltage application, pressure application, live energization, pre-testing, and preventative testing operations.

[0013] Furthermore, the intelligent grounding wire management module is used for: The grounding detection device installed in each grounding cabinet and grounding stake transmits the location and status of the grounding wire back to the central control room in real time through wireless sensing and automatic 5G transmission. The charging base of the grounding wire storage cabinet adopts wireless charging and has a voice dialogue function.

[0014] Furthermore, the intelligent grounding wire management module is used for: The installation and disassembly sequence is controlled by a combination of mechanical interlocking and electronic unlocking. The mechanical interlocking locks the grounding wire end and the conductive end together. To unlock, the grounding end must first be installed on the grounding stake. The electronic key opens the mechanical interlocking device after receiving the installation signal from the grounding stake.

[0015] Furthermore, the electronic operation ticket generation module is used for: When the secondary control power supply corresponding to each primary electrical device is entered into the system and an operation ticket is generated, the operator clicks on the device and selects the status in the system wiring diagram according to the operation sequence based on the dispatch instructions. The system judges the correctness of the operation sequence, automatically lists the secondary control power supply operations and generates a standard operation ticket, which is then forwarded to the production management system for circulation, approval and execution.

[0016] This application optimizes existing electrical anti-misoperation functions while adding mechanical coding lock anti-misoperation, cross-operation management, intelligent grounding wire management, and rapid operation ticket issuance functions. It achieves comprehensive safety control over the operation, maintenance, and repair of electrical and mechanical equipment in hydropower plants. The system effectively prevents accidents caused by personnel misoperation of equipment valves and cross-operations, improves the efficiency and accuracy of grounding wire management and operation ticket issuance, overcomes the shortcomings of traditional safety management methods, comprehensively protects the safe production of hydropower plants, and reduces the possibility of accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a comprehensive anti-misoperation system for safe production in hydropower plants, provided in an embodiment of this application. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. It should also be noted that, for ease of description, only the parts relevant to this application are shown in the drawings, not all of them. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0019] Please refer to Figure 1This application provides a comprehensive anti-misoperation system suitable for safe production in hydropower plants, including a microcomputer anti-misoperation system. The microcomputer anti-misoperation system includes: a central control server 101, a mechanical lock anti-misoperation module 102, a cross-operation management module 103, a grounding wire intelligent control module 104, and an electronic operation ticket generation module 105.

[0020] The system includes a central control server 101, which connects to the anti-misoperation host, mobile terminal, and field sensing equipment; a mechanical lock anti-misoperation module 102, which is used to install mechanical coded locks on pressurized valves, pressure relief valves, and operation buttons, and establish a virtual mapping of the corresponding equipment in the system wiring diagram; a cross-operation management module 103, which is used to verify the consistency of the execution status of multiple work orders for the same equipment unit and detect conflicts in the work content; a grounding wire intelligent management module 104, which is used to monitor the grounding wire status in real time through wireless sensors and to forcibly control the order of installation and disassembly operations; and an electronic operation ticket generation module 105, which automatically generates standardized operation tickets based on a pre-set primary equipment and secondary control power supply association library.

[0021] As described above, the embodiments of this application optimize existing electrical anti-misoperation functions and add functions such as mechanical coding lock anti-misoperation, cross-operation management, intelligent grounding wire management, and rapid operation ticket issuance. This achieves comprehensive safety control over the operation, maintenance, and repair of electrical and mechanical equipment in hydropower plants. The system can effectively prevent accidents caused by personnel misoperation of equipment valves or cross-operations, improve the efficiency and accuracy of grounding wire management and operation ticket issuance, overcome the shortcomings of traditional safety management methods, comprehensively ensure the safe production of hydropower plants, and reduce the possibility of accidents.

[0022] In some embodiments, the mechanical lock anti-misoperation module is used to: establish wiring diagrams for the entire plant's oil system, gas system, and water system in the microcomputer anti-misoperation system, and display important pressurized valves, pressure relief valves, operating handles, and buttons in the wiring diagrams.

[0023] In some embodiments, the mechanical lock anti-misoperation module is used to: perform simulated operation on the wiring diagram; after the operation is correct, the operation task is transmitted to the electronic unlocking key; after the operation is completed, the operation task is transmitted back through the electronic unlocking key; and the valve in the system wiring diagram changes color to indicate its position status.

[0024] In some embodiments, the electronic unlocking key may fail to unlock and trigger an alarm when a mismatch is detected in the mechanical coded lock; it may unlock normally only when a match is found.

[0025] In some embodiments, the cross-operation management module is used to: form a connection diagram according to the equipment units, and display the number of operations or operation tasks for each equipment unit in real time.

[0026] In some embodiments, the cross-task management module is used to: retrieve and identify task content, enter conflicting tasks that should be prohibited into the system program, automatically identify task content when issuing invoices, and automatically prohibit invoicing and display a pop-up notification when a conflict is detected.

[0027] In some embodiments, the conflicting work that should be prohibited includes painting, brushing, and coating operations with welding, hot work, cutting, grinding, shaving operations, sweeping, dust removal, cleaning, power outage operations with voltage application, pressure application, energization, pre-testing, and preventive testing operations.

[0028] In some embodiments, the intelligent grounding wire management module is used to: transmit the location and status of the grounding wire in real time back to the central control room through wireless sensing and automatic 5G transmission of the grounding wire detection device installed in each grounding wire cabinet and grounding pile; the charging base of the grounding wire storage cabinet adopts wireless charging and has a voice dialogue function.

[0029] In some embodiments, the intelligent grounding wire management module is used to control the installation and disassembly sequence by combining a mechanical interlocking device and an electronic unlocking device. The mechanical interlocking device locks the grounding wire end and the conductive end together. When unlocking, the grounding end must first be installed on the grounding stake. After receiving the installation signal transmitted back from the grounding stake, the electronic key opens the mechanical interlocking device.

[0030] In some embodiments, the electronic operation ticket generation module is used to: input the secondary control power supply corresponding to each primary electrical device into the system; when generating the operation ticket, the operator clicks on the device and selects the status in the system wiring diagram according to the operation sequence based on the scheduling instructions; the system judges the correctness of the operation sequence, automatically lists the secondary control power supply operations and generates a standard operation ticket, which is forwarded to the production management system for circulation, approval and then issued for execution.

[0031] Specifically, a wiring diagram for the entire plant's oil, gas, and water systems is established within the microcomputer-based anti-misoperation system. Important pressurized valves, pressure relief valves, operating handles, and buttons are displayed on the wiring diagram. When valve or button operation is required, a simulated operation is first performed on the wiring diagram. After successful operation, the operation task is transmitted to the electronic unlocking key. The key is then used to unlock the valve. If the wrong position is selected, the electronic key will detect an incorrect mechanical code lock, preventing unlocking and triggering an alarm. Only after selecting the correct mechanical code lock can the valve be unlocked and operated. After completion, the operation task is transmitted back via the electronic unlocking key. At this point, the valve on the system wiring diagram will change color (red for closed, green for open) to indicate its position status. The purpose of installing anti-misoperation locks on mechanical equipment is to prevent issues arising from poor management of overlapping work processes during on-site operations. This could lead to safety measures on the work order being mistakenly altered by other work requirements or after the operator has completed their work, thus affecting another operator's work or even causing an accident. It is also used to prevent on-site personnel from arbitrarily changing or canceling safety measures, or to prevent work permit holders from making mistakes that could lead to erroneous changes to safety measures, thereby affecting on-site maintenance work or even causing accidents.

[0032] Optionally, a connection diagram can be generated by equipment unit in the microcomputer-based error prevention system, displaying the number of operations or tasks for each equipment unit in real time. An auxiliary module for managing cross-operations of two work permits can be added to the system. The unlocking logic uses a consistency principle for control. When the first work permit is issued, the permit number, the name of the person in charge, and the work task are first registered on the corresponding valves in the error prevention system. Then, the operation task is transmitted to the electronic unlocking key. After the operator completes the on-site unlocking and valve operation, the electronic unlocking task is transmitted back. The valve in the system will change color to indicate its position, and the registered work permit information will be displayed at the valve. When a second work permit is issued for the same work area, if the valve position required by the safety measures is consistent with the valve position in the first work permit, the second work permit information can be registered. In this case, on-site unlocking is not required again, because the valve was already operated when the first work permit was issued; only registration is needed. After registration, the information of both work permits will be displayed at the valve in the system. However, if the valve position status required by the safety measures in the second work order is inconsistent with that in the first work order, the system will issue an alarm indicating a conflict with the safety measures of the first work order, prohibiting the authorization of the second work order, and preventing the registration and issuance of unlocking operation tasks. For example, the first work order, "Relay cylinder maintenance for Unit 1," requires the 1802 valve of the Unit 1 hydraulic gate hoist to be closed. If a second work order, "Maintenance of the Unit 1 turbine generator," also requires the 1802 valve to be closed, the work order number and maintenance task can be added again in the system. However, if a third work order, "Sliding test of the Unit 1 working gate," requires the 1802 valve to be opened for testing, the system will prohibit the generation of unlocking operation tasks and will display an alarm window stating, "This valve has a work order number [number missing], unlocking operation is prohibited." Of course, in special circumstances where it is necessary to carry out the work on the conflicting second work order ahead of schedule, all personnel working on the first work order can be arranged to evacuate the work site. After the first work order is withdrawn from the system, the system can then issue the second work order and execute the on-site unlocking task. After all the work on the second work order is completed and the system is closed, the suspended first work order can be issued again, and after the unlocking operation is executed, its personnel can return to the site to continue working.

[0033] Optionally, for some work permits with consistent safety measures for on-site operations, simultaneous work may pose risks. For example, if one worker is cleaning the generator stator coil while another team is conducting a withstand voltage preventative test on the same stator coil, applying voltage could cause electric shock to the cleaning worker. Another example is painting and welding on pipes simultaneously; these operations could lead to explosions and fires. For such work, a search function based on the work content can be used for identification. All conflicting and prohibited work can be entered into the system program. When issuing permits, the system automatically identifies the work content, automatically prohibiting permit issuance and displaying a pop-up warning if a conflict is detected. Work tasks not located in the same equipment unit, even if started simultaneously, will not interfere with each other and are therefore unrestricted; each can apply for a permit at any time.

[0034] The above description is merely a preferred embodiment and the technical principles employed in this application. This application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions that can be made by those skilled in the art will not depart from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the claims.

Claims

1. A comprehensive anti-misoperation system suitable for safe production in hydropower plants, characterized in that, Including a microcomputer-based error prevention system, the microcomputer-based error prevention system includes: The central control server connects to the anti-misoperation host, mobile terminals, and field sensing devices. The mechanical lock anti-misoperation module is used to install mechanical coded locks on pressurized valves, pressure relief valves and operating buttons, and to establish a virtual mapping of the corresponding equipment in the system wiring diagram; The cross-operation management module is used to verify the consistency of the execution status of multiple work orders for the same equipment unit and to detect conflicts in the work content; The intelligent grounding wire management module is used to monitor the grounding wire status in real time through wireless sensors and to force control the installation and removal sequence. The electronic operation ticket generation module automatically generates standardized operation tickets based on a pre-set library of primary equipment and secondary control power supplies.

2. The system according to claim 1, characterized in that, The mechanical lock anti-misoperation module is used to: establish wiring diagrams for the entire plant's oil system, gas system, and water system in the microcomputer anti-misoperation system, and display important pressurized valves, pressure relief valves, operating handles, and buttons in the wiring diagrams.

3. The system according to claim 2, characterized in that, The mechanical lock anti-misoperation module is used to: simulate operation on the wiring diagram; after the operation is correct, the operation task is transmitted to the electronic unlocking key; after the operation is completed, the operation task is transmitted back through the electronic unlocking key; and the valve in the system wiring diagram changes color to indicate its position status.

4. The system according to claim 3, characterized in that, It also includes: the electronic unlocking key cannot unlock and will sound an alarm when it detects a mismatch in the mechanical coded lock; it can only unlock normally when the lock matches.

5. The system according to claim 1, characterized in that, The cross-operation management module is used to: form a connection diagram according to the equipment units, and display the number of operations or operation tasks of each equipment unit in real time.

6. The system according to claim 1, characterized in that, The cross-task management module is used to: retrieve and identify task content, enter conflicting tasks that should be prohibited into the system program, automatically identify task content when issuing invoices, and automatically prohibit invoicing and display a pop-up message when a conflict is detected.

7. The system according to claim 6, characterized in that, The prohibited work in conflict includes painting, brushing, and coating operations with welding, hot work, cutting, grinding, shaving operations, sweeping, dust removal, cleaning, power outage operations with voltage application, pressure application, live energization, pre-testing, and preventive testing operations.

8. The system according to claim 1, characterized in that, The intelligent grounding wire management module is used to: transmit the location and status of the grounding wire back to the central control room in real time through wireless sensing and automatic 5G transmission of the grounding wire detection device installed in each grounding wire cabinet and grounding pile; the charging base of the grounding wire storage cabinet adopts wireless charging and has voice dialogue function.

9. The system according to claim 1, characterized in that, The intelligent grounding wire management module is used to control the installation and disassembly sequence by combining mechanical interlocking devices and electronic unlocking. The mechanical interlocking device locks the grounding wire end and the conductive end together. When unlocking, the grounding end must first be installed on the grounding stake. After receiving the installation signal from the grounding stake, the electronic key opens the mechanical interlocking device.

10. The system according to claim 1, characterized in that, The electronic operation ticket generation module is used to: input the secondary control power supply corresponding to each primary electrical device into the system; when generating the operation ticket, the operator clicks on the device and selects the status in the system wiring diagram according to the operation sequence based on the scheduling instructions; the system judges the correctness of the operation sequence, automatically lists the secondary control power supply operations and generates a standard operation ticket, which is forwarded to the production management system for circulation, approval and then issued for execution.

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