Nuclear power overhaul critical path management and control system and method

Abstract

The invention relates to the technical field of nuclear power overhaul, and provides a nuclear power overhaul critical path management and control system, which comprises a critical path planning module used for generating an overhaul critical path list and sending the critical path list to a critical path diagram generation module; the key path diagram generation module is used for performing data extraction on the overhaul key path list generated by the key path planning module and generating a key path diagram and a room performance statistical diagram; and the key path implementation tracking feedback module is used for tracking the key path execution condition, sending a key path information prompt, calculating the actual construction period information of the overhaul key path project implementation, comparing the actual construction period of the implemented key path with the planned construction period for calculation, and feeding back the construction period deviation for room performance assessment. The key path project execution negative interface is realized, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear power overhaul, and in particular to a nuclear power overhaul key path management and control system and method. Background Art

[0002] Nuclear power plant overhaul is a highly complex systematic management project. Annual overhaul involves more than 10,000 tasks. Overhaul plan engineers determine the start and end time of each task according to the logical relationship between the various overhaul activities to form an overhaul schedule. Among them, the overhaul critical path plan is composed of a series of milestone nodes from the decommissioning of the unit to the formal grid connection. It can reflect the important process of the overhaul and the change of the unit status and can effectively control the overhaul schedule. There is a close logical relationship between the adjacent key path items in the overhaul critical path plan, that is, the next key path starts after the previous key path item ends, so the sum of the duration of the key path items is the total duration of the overhaul.

[0003] During the current overhaul, planning engineers prepare the overhaul plan (including critical path and sub-critical path work) in P6 (Project Management 6.0, a project management software used for nuclear power unit overhaul plan preparation) and set the overhaul milestone nodes (important status starting point, end point or turning point in the overhaul process). The overhaul critical path items include information such as the planned start / completion time, planned duration, and responsible person. There are many critical path items in an overhaul and they are implemented by different departments and different work leaders.

[0004] The technical defects of key path project control during the overhaul implementation are controlled by phone. For example, the end of the current key path is notified by the work leader to the planning engineer by phone. The planning engineer notifies the subsequent latest key path project plan start time one by one, and tells the work leader to prepare in advance to avoid the situation that the previous key path work has been completed and the subsequent key path work is not ready and cannot be started in time, resulting in delays in key path connection. In fact, the delay in key path connection is caused by information lag. During the overhaul preparation period, the implementation department often does not know which key path projects it is responsible for, when they are planned to start and end, and the total duration of the key path work responsible for the department. During the overhaul implementation, the subsequent key path work plan time changes due to changes in the progress of the on-site work, resulting in the subsequent work leader waiting on site for a long time because the previous key path work has not been completed, or the previous key path work ends early and the subsequent key path work does not receive timely start information, resulting in delays in key path connection, resulting in the total overhaul period being unable to control and exceed the planned period. After the overhaul, the execution deviations of each key path could not be counted in time, and manual statistics of execution deviations were labor-intensive and prone to errors, resulting in the inability to settle performance appraisals in a timely manner or errors in settlement. Summary of the invention

[0005] The main purpose of the present invention is to provide a nuclear power overhaul critical path management and control system and method, so as to realize the negative interface of critical path project execution and improve work efficiency.

[0006] Another object of the present invention is to provide a nuclear power overhaul critical path management and control system and method, so that the relevant information of the overhaul critical path project can be prepared and delivered to each implementation department and the person in charge of implementation in a timely manner, and the critical path information can be clearly seen so that they can grasp the critical path information in advance and be prepared.

[0007] Another object of the present invention is to provide a nuclear power overhaul critical path management and control system and method, so as to realize detailed display of overhaul critical path projects, timely tracking and closed-loop management of overhaul critical path execution deviations.

[0008] Another object of the present invention is to provide a nuclear power overhaul critical path management and control system and method to achieve real-time reminder of overhaul critical path information, reduce personnel interfaces, and reduce the risk of information transmission distortion.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] In one aspect, the present invention provides a nuclear power overhaul critical path management and control system, comprising:

[0011] The critical path planning module is used to generate the overhaul critical path list and send the critical path list to the critical path diagram generation module;

[0012] The critical path diagram generation module is used to extract data from the overhaul critical path list generated by the critical path planning module and generate a critical path diagram and department performance statistics chart;

[0013] The critical path implementation tracking and feedback module is used to track the critical path execution status and send critical path information reminders, calculate the actual implementation period information of the overhaul critical path project, and compare the actual implementation period of the critical path with the planned period, and feedback the period deviation for department performance appraisal.

[0014] In some embodiments, the critical path list includes at least one critical path job, each critical path job covers the responsible department, responsible person, planned start time, and completion time, and the job information in the critical path list is arranged in order of planned start time.

[0015] In some embodiments, the critical path diagram generation module includes:

[0016] A data extraction unit is used to extract the critical path list information data generated by the critical path planning module into a data pool to generate an overhaul critical path information database;

[0017] The logic calculation unit is used to arrange the overhaul key path information data generated in the data extraction unit in the order of the planned start time;

[0018] The automatic generation unit is used to generate a critical path display board and a critical path tree diagram display board for each department from the logical calculation data results generated in the logical calculation unit.

[0019] In some embodiments, when the overhaul begins (the planned start time of the first critical path operation is equal to the current time), the critical paths are arranged in sequence according to the planned start time, and the first critical path starts to be executed, and it is determined whether the planned duration of the subsequent critical path operation is less than 2 hours. If it is less than 2 hours, the subsequent critical path operation and its subsequent critical path operation information are sent to the corresponding responsible person simultaneously; if it is greater than 2 hours, only the subsequent critical path operation related information is sent to the corresponding responsible person.

[0020] In some embodiments, after the current critical path is executed, the actual completion time is determined and compared with the planned completion time. If they are not equal, the subsequent two critical path information is re-triggered to the corresponding responsible persons.

[0021] On the other hand, the present invention provides a nuclear power overhaul critical path control method, comprising:

[0022] Step 1: Prepare the overhaul mainline plan and identify the critical path items;

[0023] Step 2: Generate the overhaul critical path kanban board;

[0024] Step 3: Calculate the critical path and generate a bar chart;

[0025] Step 4: Track the critical path and feedback the critical path execution deviation (track the critical path execution, send critical path information reminders, feedback the actual construction period after implementation and compare it with the planned construction period to calculate the deviation);

[0026] Step 5: Analyze the critical path execution deviation, calculate the total delay / advance of the critical path duration according to the department to which it belongs, and count the total deviation between the actual duration and the planned duration of the critical path of each department;

[0027] Step 6: Calculate performance appraisal.

[0028] In some embodiments, based on the overhaul project and unit status changes, the start and end time of each work is clarified to form an overhaul main line plan, the activity path with the longest construction period from unit de-coupling to grid connection is identified, and the key work position corresponding to each critical path work is marked to generate overhaul critical path projects and an overhaul critical path list.

[0029] In some embodiments, the critical path list information data generated by the critical path planning module is extracted by a data extraction unit into a data pool to generate an overhaul critical path information database.

[0030] In some embodiments, the critical path implementation tracking feedback module automatically reads the critical path planning information, the first critical path starts to execute, and determines whether the planned duration of subsequent critical path operations is less than 2 hours. If it is less than 2 hours, the subsequent critical path operations and subsequent critical path information are sent to the corresponding responsible persons simultaneously; if it is greater than 2 hours, only the subsequent critical path operation-related information is sent to the corresponding responsible persons.

[0031] In some embodiments, all critical path tasks are completed and tracked through the critical path tracking and feedback module, and the actual duration of each critical path task and other information are returned to the critical path planning module. The critical path diagram generation module is re-generated, and the total advance or delay duration of each department's critical path is calculated and counted. A performance appraisal statistical dashboard for each department is generated in the automatic generation unit, and the performance of each department's reward or punishment is calculated according to established rules, and finally the final performance of each department is obtained.

[0032] Compared with the prior art, the nuclear power overhaul critical path control system and method provided by the present invention has the following beneficial effects:

[0033] The present invention provides feedback on the progress of overhaul critical path implementation, timely and accurately reminds of critical path project plan information, reduces the risk of delayed implementation of the critical path due to information transmission errors, avoids the energy wasted by work leaders waiting in advance, and also ensures that critical path operations are started in time, realizing the negative interface for the execution of critical path operations.

[0034] The present invention automatically tracks and calculates the deviation of key path project execution, predicts the overhaul end time and the total overhaul duration, and realizes timely prediction and adjustment of overhaul key path operations.

[0035] The present invention automatically calculates and tracks the execution deviations of overhaul key path items and analyzes them. After the overhaul is completed, it automatically identifies and statistically analyzes the execution deviations of each key path item and the total deviation of the key path execution responsible for each implementation department. This helps overhaul planning engineers to review and summarize the key path management and control of overhaul implementation. There is no need for manual statistical data, which reduces interfaces between personnel, improves data reliability, reduces the workload of relevant personnel, and provides reliable data support for plan optimization and performance appraisal.

[0036] Furthermore, the present invention automatically forms an overhaul critical path dashboard by displaying the overhaul critical path items in real time in the overhaul management system, so that each implementation department and the person in charge of the implementation work can timely grasp the critical path information they are responsible for and make preparations for starting work in advance, so that everyone is aware of the overhaul plan, highlighting the leading role of the overhaul plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the technical description.

[0038] Figure 1 A schematic diagram of the structure of the nuclear power overhaul critical path control system provided by the present invention;

[0039] Figure 2 A flow chart of the critical path control method for nuclear power overhaul provided by the present invention. DETAILED DESCRIPTION

[0040] The following is further explained in detail through specific implementation methods.

[0041] like Figure 1 As shown, the present invention provides a nuclear power overhaul critical path management and control system, including a critical path plan preparation module, a critical path diagram generation module, and a critical path implementation tracking feedback module. The critical path plan preparation module serves as an input module of the critical path diagram generation module, and the critical path diagram generation module serves as an input module of the critical path implementation tracking feedback module.

[0042] The critical path planning module is used to generate a list of overhaul critical paths. The planned completion time of each critical path is the planned start time of the next critical path operation. The planned completion time is calculated by adding the planned start time to the planned duration, and the critical path list is sent to the data extraction unit. The critical path list includes at least one critical path operation, and each critical path operation includes the responsible department, responsible person, planned start / completion time, etc. The operation information in the critical path list is arranged in the order of the planned start time.

[0043] The critical path diagram generation module is used to extract data from the overhaul critical path list generated by the critical path planning module, and generate critical path diagrams, department performance statistics, etc. through a series of logical calculations. The critical path diagram generation module includes a data extraction unit, a logical calculation unit, and an automatic generation unit.

[0044] The data extraction unit is used to extract the critical path list information data generated by the critical path planning module into the data pool to generate an overhaul critical path information database.

[0045] The logic calculation unit is used to arrange the overhaul critical path information data generated in the data extraction unit in the order of the planned start time through logical calculation (the internal logical relationship between projects in the critical path preparation process), thereby realizing the priority sorting of the critical path operations. For each critical path operation, the responsible department, planned start time, planned duration and other information, the critical paths belonging to the same department are sorted by planned start time through logical calculation to generate a tree diagram, and the planned duration, actual duration (generated after the critical path execution is completed) and execution deviation information of each critical path are displayed. The planned duration, actual duration and execution deviation of the critical paths of the same department are summed to generate a basic information dashboard for the performance appraisal of each department.

[0046] The automatic generation unit is used to generate the key path display board and the key path tree diagram display board of each department from the logical calculation data results generated in the logical calculation unit. The key path display board makes the overhaul key path information transparent, so that the departments and responsible persons know the key path information they are responsible for, make preparations in advance, intervene in time, and improve the key path management and control effect.

[0047] The critical path implementation tracking and feedback module is used to track the execution of the critical path and send critical path information reminders, calculate the actual duration information of the overhaul critical path project implementation, and compare the actual duration of the implemented critical path with the planned duration, and feedback the duration deviation for department performance assessment. After the overhaul begins, the critical paths are arranged in the order of the planned start time, realizing the priority sorting of the critical path operations. The first critical path begins to be executed, and the critical path control system logically determines whether the planned duration of the subsequent critical path operation is less than 2 hours. If it is less than 2 hours, the system will simultaneously send the subsequent critical path operation and the subsequent critical path operation planned start time and other information to the corresponding responsible person; if the logic determines that the subsequent critical path operation planned duration is greater than 2 hours, the system will only send the subsequent critical path operation related information to the corresponding responsible person. If the current critical path operation plan completion time changes (advance or lag), the system will send the subsequent two critical path operation plan start time (after the current critical path plan completion time changes, the subsequent critical path plan start time is automatically calculated and updated according to the previous critical path operation start time and duration) and other related information to the corresponding responsible person. When the current critical path is completed, the system determines the actual completion time and compares it with the planned completion time. If they are not equal, the system will re-trigger the planned start time of the next two critical path operations and send it to the corresponding responsible person. Timely reminders of critical path operation start information can ensure that the critical path operations are connected to the negative interface, thereby improving the efficiency of overhaul critical path operation management and control. At the same time, each time a critical path operation is completed, the actual construction period is automatically counted to the actual construction period of the critical path of the corresponding department, and compared with the planned construction period to calculate the production execution deviation, and record the execution status and execution deviation of the critical path operations of each department in real time. Make the critical path execution information clear, transparent, and reliable.

[0048] The nuclear power overhaul critical path control system provided by the present invention has the function of automatically extracting, calculating and reminding the critical path related information from the P6 planning software. During the overhaul implementation process, after the overhaul plan in P6 is adjusted according to the progress of the on-site implementation, the overhaul critical path information is adjusted synchronously, so that each implementation department can timely and effectively understand the overhaul progress information.

[0049] In addition, if Figure 2 As shown, the present invention also provides a nuclear power overhaul critical path control method, including:

[0050] Step 1: Prepare the overhaul mainline plan and identify the critical path items.

[0051] First, the preparation of basic data needs to be completed. In the critical path planning module, according to the changes in the overhaul project and the unit status, the various overhaul activities are arranged according to a certain logical relationship (for example, SS: start at the same time; FS: the predecessor project ends and the subsequent project starts; FF: ends at the same time as the predecessor project) to determine and clarify the start and end time of each work to form the main line plan of the overhaul. Through the progress calculation, the activity path with the longest duration with a certain logical relationship from the unit decoupling to the grid connection is automatically identified, and the key operation position corresponding to each critical path operation is marked, and the overhaul critical path project is automatically generated, and the overhaul critical path list is generated. The sum of the duration of each critical path project is the total duration of the overhaul.

[0052] Step 2: Automatically generate the overhaul critical path kanban board.

[0053] The critical path list information generated by the critical path planning module is automatically extracted through the data extraction unit to generate the overhaul critical path information database. The logic calculation unit automatically reads the logical relationship between the critical path items (SS: start at the same time; FS: the predecessor item ends and the subsequent item starts; FF: ends at the same time as the predecessor item), and generates the critical path dashboard in the automatic generation unit after logical calculation. The critical path management and control system automatically reads the job name information, planned start / completion time information, responsible unit / person in charge information, historical construction period information, etc. of the critical path items, and automatically generates a strip-shaped critical path dashboard in the critical path management and control system.

[0054] For example: read the above-mentioned relevant information of the critical path project of "steam extinguishing chamber of pressure regulator" and automatically generate the critical path dashboard: pressure regulator steam extinguishing chamber, planned start time xxx, planned completion time xxx, planned duration xxx, historical best duration xxx, responsible department xxx, responsible person xxx. By reading the logical relationship of the adjacent critical path project, the critical path project with the "FS" logical relationship is automatically displayed behind it, and the planned completion time is assigned to the planned start time of the subsequent critical path operation, and the two are consistent.

[0055] Step 3: Analyze and calculate the critical path and generate a bar chart.

[0056] The automatic generation unit automatically reads the responsible departments, planned duration, actual duration and other information of all critical path projects based on the logical calculation results generated in the logical calculation unit, and automatically generates a bar chart from bottom to top according to the logical relationship of the immediate predecessor and successor. Each entry contains the information of the critical path name, planned duration, actual duration and deviation. The planned duration and actual duration of all critical path projects of the same department are further summed up, and the total planned time and actual time of the critical path of the department are calculated and the deviation is calculated in real time, and the statistical bar chart of the critical path of each department is automatically generated.

[0057] Step 4: Implement tracking feedback critical path.

[0058] The critical path implementation tracking feedback module automatically reads the critical path plan information. When the first critical path starts to execute, the critical path control system logically determines whether the planned duration of the subsequent critical path operation is less than 2 hours. If it is less than 2 hours, the system will simultaneously send the subsequent critical path operation and the subsequent critical path operation plan start time and other information to the corresponding responsible person; if the logic determines that the subsequent critical path operation plan duration is greater than 2 hours, the system will only send the subsequent critical path operation related information to the corresponding responsible person. If the current critical path operation plan completion time changes (advance or lag), the system will send the subsequent two critical path operation plan start time (after the current critical path plan completion time changes, the subsequent critical path plan start time is automatically calculated and updated according to the previous critical path operation start time and duration) and other related information to the corresponding responsible person after logical judgment. After the current critical path is executed, the system determines the actual completion time and compares it with the planned completion time. If they are not equal, the subsequent two critical path operation plan start time and other information will be retriggered to the corresponding responsible person. Timely reminder of the critical path operation start information can ensure that the critical path operation is connected to the negative interface, thereby improving the efficiency of overhaul critical path operation control.

[0059] Step 5: Analyze the execution deviation of the critical path, calculate the total delay / advance of the critical path according to the department to which it belongs, and count the total deviation between the actual and planned duration of the critical path of each department.

[0060] After the current critical path project is implemented, the critical path implementation tracking and feedback module automatically extracts the actual duration and compares it with the planned duration. The positive deviation is counted to the right and the negative deviation is counted to the left in the corresponding critical path bar chart. The system further automatically calculates the sum of positive / negative deviations of the executed critical path projects of each department and displays them in the progress advance summary and progress ahead summary bar charts in descending order.

[0061] Step 6: Calculate performance appraisal.

[0062] The advance or delay of the overhaul critical path directly affects the shortening or extension of the total overhaul duration. In order to pursue the goal of overhaul excellence, the critical path is rewarded by the hour for being ahead of schedule and punished by the hour for being behind schedule. The tracking and feedback module is implemented in the critical path, and all the critical path operations are tracked and fed back. The actual duration of each critical path operation and other information are returned to the critical path planning module. The critical path diagram generation module is re-generated. By calculating and counting the total advance or delay duration of the critical path of each department, the performance appraisal statistics dashboard of each department is generated in the automatic generation unit. The system automatically calculates the performance of rewards or penalties of each department according to the established rules, and finally obtains the final performance of each department. At the same time, by analyzing the advanced critical path projects, good experience feedback or good practices are fed back to the next overhaul plan or other units. By analyzing the delayed critical path projects, the root cause of the delay is found, such as unreasonable planned duration, poor control process, inadequate preparation or execution, etc., to provide reliable data for the re-optimization of the plan.

[0063] The present invention automatically extracts overhaul plan related information, displays overhaul key path project information in real time in the overhaul management system, and realizes automatic generation of overhaul key paths.

[0064] The present invention automatically extracts overhaul key path information, performs logical calculation and analysis on the overhaul key path information that each execution office is responsible for, and automatically generates a bar graph.

[0065] During the overhaul implementation, the start time of the critical path plan is automatically extracted, and the corresponding work leader is promptly reminded of the start information via SMS. After the plan is adjusted, the adjustment information is transmitted in a timely manner to achieve timely transmission of overhaul plan adjustment information and negative interface for the implementation of the overhaul critical path.

[0066] During the overhaul implementation, key path items are tracked in real time, deviations are automatically calculated and analyzed, and the total overhaul duration and end time are logically calculated. After the overhaul is completed, plan implementation deviation data is automatically generated to provide data support for overhaul plan implementation evaluation and performance appraisal.

[0067] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A nuclear power overhaul critical path control system, characterized in that: include: The critical path planning module is used to generate the overhaul critical path list and send the critical path list to the critical path diagram generation module; The critical path diagram generation module is used to extract data from the overhaul critical path list generated by the critical path planning module and generate a critical path diagram and department performance statistics chart; The critical path implementation tracking and feedback module is used to track the critical path execution status and send critical path information reminders, calculate the actual implementation period information of the overhaul critical path project, and compare the actual implementation period of the critical path with the planned period, and provide feedback on the period deviation.

2. The nuclear power overhaul critical path control system according to claim 1, characterized in that: The critical path list includes at least one critical path task. Each critical path task includes the responsible department, responsible person, planned start time, and completion time. The task information in the critical path list is arranged in order of the planned start time.

3. The nuclear power overhaul critical path control system according to claim 1, characterized in that: The critical path diagram generation module includes: A data extraction unit is used to extract the critical path list information data generated by the critical path planning module into a data pool to generate an overhaul critical path information database; The logic calculation unit is used to arrange the overhaul key path information data generated in the data extraction unit in the order of the planned start time; The automatic generation unit is used to generate a critical path display board and a critical path tree diagram display board for each department from the logical calculation data results generated in the logical calculation unit.

4. The nuclear power overhaul critical path control system according to claim 1, characterized in that: When the overhaul begins, the critical paths are arranged in order of the planned start time. The first critical path starts to be executed to determine whether the planned duration of the subsequent critical path operations is less than 2 hours. If it is less than 2 hours, the subsequent critical path operations and subsequent critical path operation information are sent to the corresponding responsible persons simultaneously; if it is more than 2 hours, only the subsequent critical path operation related information is sent to the corresponding responsible persons.

5. The nuclear power overhaul critical path control system according to claim 1, characterized in that: After the current critical path is executed, the actual completion time is compared with the planned completion time. If they are not equal, the subsequent two critical path information is re-triggered to the corresponding responsible persons.

6. A nuclear power overhaul critical path control method, characterized in that: include: Step 1: Prepare the overhaul mainline plan and identify the critical path items; Step 2: Generate the overhaul critical path kanban board; Step 3: Calculate the critical path and generate a bar chart; Step 4: Track the critical path and provide feedback on the critical path execution deviation; Step 5: Analyze the critical path execution deviation, calculate the total delay / advance of the critical path duration according to the department to which it belongs, and count the total deviation between the actual duration and the planned duration of the critical path of each department; Step 6: Calculate performance appraisal.

7. The nuclear power overhaul critical path control system according to claim 6, characterized in that: In step 1, according to the overhaul project and the change of unit status, the start and end time of each work is clarified to form the overhaul main line plan, the activity path with the longest construction period from unit decoupling to grid connection is identified, and the key operation position corresponding to each critical path operation is marked to generate the overhaul critical path project and the overhaul critical path list.

8. The nuclear power overhaul critical path control system according to claim 6, characterized in that: In step 2, the critical path list information data generated by the critical path planning module is extracted into a data pool through a data extraction unit to generate an overhaul critical path information database.

9. The nuclear power overhaul critical path control system according to claim 6, characterized in that: In step 4, the critical path implementation tracking feedback module automatically reads the critical path plan information, the first critical path starts to execute, and determines whether the planned duration of subsequent critical path operations is less than 2 hours. If it is less than 2 hours, the subsequent critical path operations and subsequent critical path information are sent to the corresponding responsible persons simultaneously; if it is greater than 2 hours, only the subsequent critical path operation related information is sent to the corresponding responsible persons.

10. The nuclear power overhaul critical path management and control system according to claim 6, characterized in that: In step 6, all critical path tasks are tracked and fed back through the critical path implementation tracking and feedback module, and the actual duration of each critical path task and other information are returned to the critical path planning module. The critical path diagram generation module is used again to calculate and count the total advance or delay duration of each department's critical path, and a performance appraisal statistical dashboard for each department is generated in the automatic generation unit. The performance of each department's reward or punishment is calculated according to the established rules, and finally the final performance of each department is obtained.

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