Power plant work plan creation support system and power plant work plan creation support method

Abstract

It can reduce the effort required to create work plans for power plants. [Solution] A power plant work plan creation support system 10 that supports the creation of work plans 27 for inspection work etc. at a power plant, comprising: a first processing unit 13 that uses past process plans 16A, work area plans 16B, system management plans 16C and man-hour accumulation plans 16D to confirm first conditions 21 regarding the current work style, quality non-conformity and accidents; a second processing unit 14 that performs similarity search and clustering processing on past process plans, work area plans, system management plans and man-hour accumulation plans using machine learning and creates process plans 23A, work area plans 23B, system management plans 23C and man-hour accumulation plans 23D that satisfy the first conditions from the processing results; and a third processing unit 15 that combines the process plans 26A, work area plans 26B, system management plans 26C and man-hour accumulation plans 26D that have been corrected after being created by the second processing unit to create a work plan 27.

Description

Technical Field

[0005] , , ,

[0001] Embodiments of the present invention relate to a system for supporting the creation of a power plant work plan and a method for supporting the creation of a power plant work plan.

Background Art

[0002] These days is an era when DX (Digital Transformation) is being called out. This DX began with DE (Digital Evolution), which is the digitization of past operations. In the periodic inspection work of nuclear power plants, since the same work is repeated in the periodic inspection work, the past "process plan (including construction specifications)", "work area plan", "system management plan (isolation plan)", and "man-hour accumulation plan" are often reused.

[0003] On the other hand, in the layout design of facilities, design activities using 3D CAD are being promoted. Also, the effective utilization of data accumulated through the digitization of the field, which has been underway since around 2020, is required. Furthermore, for those where there is no remaining electronic data after searching the paper materials of the conventional "process plan (including construction specifications)", "work area plan", "system management plan (isolation plan)", and "man-hour accumulation plan", the creation by manual input into digital data is being advanced.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] As mentioned above, periodic inspections of nuclear power plants are, quite literally, regular inspections, with the same procedures repeated as in the past. During these periodic inspections, the management of "standard procedures" is carried out by referring to paper-based documents that have been stored and managed, such as past "process plans (including construction manuals)," "work area plans," "system management plans (isolation plans)," and "workload plans." However, managing these standard procedures requires considerable effort, as hundreds of construction manuals are created manually for each periodic inspection, while reflecting information such as changes in format, quality non-conformities, and disasters during the periodic inspection. Furthermore, with the intensifying competitiveness of nuclear power plant manufacturers, cost reduction is an essential issue. On the other hand, the task of overseeing and managing periodic inspections is sometimes entrusted to the operator or related on-site companies of the operator.

[0006] Embodiments of the present invention have been made in consideration of the above circumstances, and aim to provide a power plant work plan creation support system and a power plant work plan creation support method that can reduce the labor involved in creating work plans for power plants. [Means for solving the problem]

[0007] The power plant work plan creation support system in an embodiment of the present invention is a power plant work plan creation support system that assists in creating work plans for work including inspection work or construction work at a power plant, and is characterized by comprising: a first processing unit that uses past process plans, work area plans, system management plans and man-hour accumulation plans to confirm the current work style, quality non-conformity and disaster conditions; a second processing unit that performs a similarity search using machine learning on the past process plans, work area plans, system management plans and man-hour accumulation plans and performs clustering processing, and creates a new process plan, work area plan, system management plan and man-hour accumulation plan that satisfies the conditions based on the results of this clustering processing; and a third processing unit that combines the process plan, work area plan, system management plan and man-hour accumulation plan that have been corrected after being created by the second processing unit to create the work plan.

[0008] The power plant work plan creation support method in an embodiment of the present invention is a power plant work plan creation support method that supports the creation of a work plan for work including inspection work or construction work at a power plant, and is characterized by comprising: a first processing unit confirming the current work style, quality non-conformity and disaster conditions using past process plans, work area plans, system management plans and man-hour accumulation plans; a second processing unit performing a similarity search using machine learning on the past process plans, work area plans, system management plans and man-hour accumulation plans and performing clustering processing, and creating a new process plan, work area plan, system management plan and man-hour accumulation plan that satisfies the conditions based on the results of this clustering processing; and a third processing unit creating the work plan by combining the process plans, work area plans, system management plans and man-hour accumulation plans that have been modified after being created by the second processing unit. [Effects of the Invention]

[0009] According to embodiments of the present invention, the effort required to create work plans for power plants can be reduced. [Brief explanation of the drawing]

[0010] [Figure 1] A block diagram showing the configuration of a power plant work plan creation support system according to one embodiment. [Figure 2] Figure 1 is an explanatory diagram showing process information for past process plans. [Figure 3] Figure 1 is an explanatory diagram showing the work area information of past work area plans. [Figure 4] Figure 1 shows a graph illustrating the man-hour information in past man-hour scaling plans. [Figure 5] (A) and (B) are explanatory diagrams that show a comparison of related process information and work area information. [Figure 6] A flowchart illustrating the procedure for creating a work plan for periodic inspection work at a nuclear power plant. [Modes for carrying out the invention]

[0011] Hereinafter, embodiments for carrying out the present invention will be described based on the drawings. Figure 1 is a block diagram showing the configuration of a power plant work plan creation support system according to one embodiment. The power plant work plan creation support system 10 shown in Figure 1 supports the creation of work plans 27 for work including periodic inspection work or construction work at a power plant, such as a nuclear power plant, and is configured to include a first database 11, a second database 12, a first processing unit 13, a second processing unit 14, and a third processing unit 15. In this embodiment, the case in which the power plant work plan creation support system 10 supports the creation of work plans 27 for periodic inspection work at a nuclear power plant will be mainly described.

[0012] Here, a comparative example of creating a work plan for periodic inspection work at a nuclear power plant will be explained based on Figure 6. In this comparative example, past process plans 1A, work area plans 1B, system management plans 1C, and man-hour allocation plans 1D have been created as documents (paper materials). Workers use these paper documents for process plans 1A, work area plans 1B, system management plans 1C, and man-hour allocation plans 1D to confirm the current "work style, quality non-conformities, accidents, etc." 2 in periodic inspection work, that is, changes in work style, responses to quality non-conformities, responses to accidents, etc.

[0013] Next, the worker manually creates process plan 3A by correcting process plan 1A, work area plan 3B by correcting work area plan 1B, system management plan 3C by correcting system management plan 1C, and man-hour accumulation plan 3D by correcting man-hour accumulation plan 1D, taking into account the current "work style, quality non-conformity, accidents, etc." 2. After that, the worker combines process plan 3A, work area plan 3B, system management plan 3C, and man-hour accumulation plan 3D to create work plan 4 for periodic inspection work. However, because process plan 1A, work area plan 1B, system management plan 1C, and man-hour accumulation plan 1D are numerous, the creation of process plan 3A, work area plan 3B, system management plan 3C, and man-hour accumulation plan 3D in particular requires an enormous amount of time.

[0014] In contrast, in the power plant work plan creation support system 10 of this embodiment, the past process plan 16A, work area plan 16B, system management plan 16C, and man-hour accumulation plan 16D shown in Figure 1 are all digitized and stored in the first database 11. The process information of the process plan 16A is shown in Figure 2, for example; the work area information of the work area plan 16B is shown in Figure 3, for example; and the man-hour information of the man-hour accumulation plan 16D is shown in Figure 4, for example. Of these, the work area information of the work area plan 16B shows the arrangement of multiple pieces of equipment 17 and piping 18.

[0015] The first processing unit 13 uses past process plans 16A, work area plans 16B, system management plans 16C, and man-hour accumulation plans 16D to confirm the first condition 21 regarding the current (latest) work style, quality nonconformities, and accidents in periodic inspection work or construction work. This first condition 21 is a condition that represents information such as changes in work style (work specifications), responses to quality nonconformities, and responses to accidents in periodic inspection work or construction work.

[0016] The second processing unit 14 has, for example, an AI (Artificial Intelligence) using the Python language. This AI performs similarity search by machine learning on the past process plan 16A, work area plan 16B, system management plan 16C, and man-hour accumulation plan 16D, and implements clustering processing. Furthermore, the AI creates new process plan 23A, work area plan 23B, system management plan 23C, and man-hour accumulation plan 23D while satisfying the first condition 21 for the clustering processing result and considering (taking into account) the second condition 22 (described later).

[0017] The above second condition is at least one of the process connection, process procedure, process width, equipment arrangement, equipment characteristics, and productivity of the work entity (work company). For example, if there is a change in the equipment arrangement, the AI of the second processing unit 14 reflects the change in the work area plan 23B. Also, when the productivity is improved due to a change in the work company, the AI of the second processing unit 14 adjusts the process width of the process information in the process plan 23A to accommodate the improved productivity.

[0018] In addition, the AI of the second processing unit 14 creates the process plan 23A, work area plan 23B, system management plan 23C, and man-hour accumulation plan 23D by correlating the process information of the process plan 23A, the work area information of the work area plan 23B, the system management information of the system management plan 23C, and the man-hour information of the man-hour accumulation plan 23D with each other. For example, the work schedule data reflecting the man-hour information of the man-hour accumulation plan 23D is associated with the process information of the process plan 23A. In this case, by specifying any process of the process information in the process plan 23A (clicking on the display screen of the process information in the process plan 23A), it becomes possible to recognize the man-hours (for example, labor) involved in that process.

[0019] Furthermore, when the work area information of the work area plans 16B and 23B has design information by 3D CAD (Computer Aided Design) representing equipment layout information and system information, the AI of the second processing unit 14 can process by correlating this design information with the process information of the process plan 23A and the man-hour information of the man-hour stacking plan 23D. For example, the information on the on-site operations 24α, 24β, 24γ... in the process plan 23A shown in FIG. 5(A) is associated with the information on the work areas 25α, 25β, 25γ... for each floor of the nuclear power plant in the work area plan 23B shown in FIG. 5(B). In this case, by specifying an arbitrary on-site operation on the display screen of the process information in the process plan 23A (FIG. 5(A)), it becomes possible to recognize the work area where the on-site operation is carried out on the display screen of the work area information in the work area plan 23B (FIG. 5(B)).

[0020] As shown in FIG. 1, the process plan 23A, work area plan 23B, system management plan 23C, and man-hour stacking plan 23D created by the second processing unit 14 are temporarily stored in the second database 12. Next, the operator manually makes minute corrections to each of the process plan 23A, work area plan 23B, system management plan 23C, and man-hour stacking plan 23D stored in the second database 12 to create a process plan 26A, work area plan 26B, system management plan 26C, and man-hour stacking plan 26D, respectively.

[0021] The third processing unit 15 combines the process plan 26A, work area plan 26B, system management plan 26C, and man-hour stacking plan 26D to create a work plan 27 for the periodic inspection work. When the work area information in the work area plans 16B and 23B has design information by 3D CAD representing equipment layout information and system information, the third processing unit 15 is configured to be able to confirm the appropriateness of the work plan by simulating the process plan 26A, work area plan 26B, system management plan 26C, and man-hour stacking plan 26D that make up the work plan 27 in real time.

[0022] As shown in Figure 1, the power plant work plan creation support system 10 uses past process plans 16A, work area plans 16B, system management plans 16C, and man-hour accumulation plans 16D to perform a step (S1) in which the first processing unit 13 confirms the first conditions 21 regarding the current (latest) work style, quality nonconformities, and accidents in periodic inspection work.

[0023] Furthermore, the power plant work plan creation support system 10 performs the following steps (S2): The second processing unit 14 performs a similarity search using machine learning on past process plans 16A, work area plans 16B, system management plans 16C, and man-hour accumulation plans 16D, and then, based on the results of this clustering process, it creates process plans 23A, work area plans 23B, system management plans 23C, and man-hour accumulation plans 23D that satisfy the first condition 21 and also take into account the second condition 22.

[0024] Furthermore, the power plant work plan creation support system 10 performs step (S3) in which the third processing unit 15 combines the process plan 26A, work area plan 26B, system management plan 26C, and man-hour accumulation plan 26D, which were created in the second processing unit 14 and then corrected by a human, to create a work plan 27 for periodic inspection work.

[0025] As described above, this embodiment provides the following effects (1) to (3). (1) The AI ​​in the second processing unit 14 performs a similarity search using machine learning on past process plans 16A, work area plans 16B, system management plans 16C, and man-hour allocation plans 16D, and performs clustering. Based on the results of this clustering, it satisfies the first condition 21 regarding the current work style, quality non-conformities, and accidents, and also takes into account the second condition 22, which includes the connections between processes, process procedures, and the productivity of the work companies, to create new process plans 23A, work area plans 23B, system management plans 23C, and man-hour allocation plans 23D. As a result, based on these process plans 23A, work area plans 23B, system management plans 23C, and man-hour allocation plans 23D, it is possible to create a highly reliable work plan 27 for periodic inspection work or construction work of a nuclear power plant that takes into account past performance and current work conditions, and moreover, the labor required for this creation work can be reduced.

[0026] (2) The work plan 27 for periodic inspection work or construction work at a nuclear power plant is created based on the process plan 23A, work area plan 23B, system management plan 23C, and man-hour buildup plan 23D created by the AI ​​of the second processing unit 14. Therefore, the occurrence of errors such as typos due to human error in the work plan 27 can be eliminated as much as possible. Moreover, if the periodic inspection work at a nuclear power plant is carried out by the operator of the power plant, the work plan 27 for that periodic inspection work can be created by that operator.

[0027] (3) If the work area information in the work area plans 16B and 23B includes 3D CAD design information representing the layout of equipment and system information, by utilizing the 3D CAD design information, the process plan 26A, work area plan 26B, system management plan 26C, and man-hour accumulation plan 26D that constitute the work plan 27 can be simulated in real time, and problems such as interference of work within the power plant can be confirmed through a 3D visual representation at the time the work plan 27 is created.

[0028] Although embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations can be made without departing from the spirit of the invention. Such substitutions, modifications, and combinations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Explanation of symbols]

[0029] 10...Power plant work plan creation support system, 13...First processing unit, 14...Second processing unit, 15...Third processing unit, 16A...Process plan, 16B...Work area plan, 16C...System management plan, 16D...Workload accumulation plan, 21...First condition, 22...Second condition, 23A...Process plan, 23B...Work area plan, 23C...System management plan, 23D...Workload accumulation plan, 26A...Process plan, 26B...Work area plan, 26C...System management plan, 26D...Workload accumulation plan, 27...Work plan.

Claims

1. A power plant work plan creation support system that assists in the creation of work plans for tasks including inspection work or construction work at a power plant, The first processing unit confirms the current work style, quality non-conformity, and accident-related conditions using past process plans, work area plans, system management plans, and man-hour buildup plans. A second processing unit performs a similarity search using machine learning on past process plans, work area plans, system management plans, and man-hour allocation plans and performs clustering, and then creates a new process plan, work area plan, system management plan, and man-hour allocation plan that satisfies the above conditions based on the results of this clustering process, A power plant work plan creation support system characterized by comprising: a third processing unit that creates the work plan by combining the process plan, work area plan, system management plan, and man-hour accumulation plan, which have been corrected after being created in the second processing unit.

2. The power plant work plan creation support system according to claim 1, characterized in that the second processing unit is further configured to create a new process plan, work area plan, system management plan, and man-hour stacking plan by considering at least one of the process connections, process procedures, process width, equipment layout, equipment characteristics, and productivity of the work subjects as other conditions.

3. The power plant work plan creation support system according to claim 1, characterized in that the second processing unit is configured to process process information in the process plan, work area information in the work area plan, system management information in the system management plan, and man-hour information in the man-hour accumulation plan by relating them to each other.

4. The power plant work plan creation support system according to claim 1, characterized in that, when the work area information in the work area plan includes design information using 3D CAD representing the layout information of the equipment and the system information, the second processing unit is configured to process the design information, the process information of the process plan, and the man-hour information of the man-hour accumulation plan by relating them to each other.

5. The power plant work plan creation support system according to claim 4, characterized in that the third processing unit is configured to allow verification by simulation of the work plan, which is a compilation of the process plan, work area plan, system management plan, and man-hour accumulation plan extracted and corrected in the second processing unit.

6. A method for supporting the creation of work plans for power plants, which assists in the creation of work plans for tasks including inspection work or construction work at power plants, The first processing unit confirms the current work style, quality non-conformity, and accident-related conditions using past process plans, work area plans, system management plans, and man-hour buildup plans. The second processing unit performs a similarity search using machine learning on past process plans, work area plans, system management plans, and man-hour accumulation plans, and then creates a new process plan, work area plan, system management plan, and man-hour accumulation plan that satisfies the aforementioned conditions based on the results of this clustering process. A method for supporting the creation of a work plan for a power plant, characterized by having a third processing unit combine the process plan, work area plan, system management plan, and man-hour accumulation plan, which have been created and modified in the second processing unit, to create the work plan.

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