Power plant maintenance grading intelligent computing method

Abstract

This invention belongs to the field of power plant maintenance technology, specifically relating to an intelligent calculation method for power plant maintenance classification. There are four possible outcomes for maintenance classification: T, M1, M2, and M3, with a priority order of T > M1 > M2 > M3. During the classification process, there are 16 possible scenarios. The highest priority condition is considered first. If at least one of the 16 scenarios matches, a value is assigned, and subsequent scenarios are not processed. This invention can statistically identify 13 factors influencing maintenance classification and calculate the correct classification using a program algorithm, significantly improving data processing efficiency and accuracy, thereby increasing work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of power plant maintenance technology, specifically relating to an intelligent calculation method for power plant maintenance classification. Background Technology

[0002] In the daily operations of nuclear power plants, maintenance work is categorized into different levels based on the on-site maintenance activities. A comprehensive risk assessment is conducted based on the factors influencing the categorization of maintenance activities, classifying them into four levels: M1 (critical maintenance), M2 (important maintenance), M3 (general maintenance), and T (periodic testing). This differentiated approach in terms of personnel allocation, preparation requirements, and on-site control for each level aims to improve maintenance efficiency and ensure effective risk management of maintenance activities.

[0003] Critical Maintenance (M1): This type of work typically involves high radiation safety risks, industrial safety risks, or high complexity. Important Maintenance (M2): This refers to work with relatively high complexity and some risk, requiring the development of maintenance procedures or plans to guide its implementation. Radiation and industrial safety risks are low, with a low risk of reactor shutdown, entering specification limits, or causing load reduction. General Maintenance (M3): This refers to maintenance work with some complexity and low risk, but requiring the development of work instructions to guide its implementation. Typically, this type of work has low industrial and radiation safety risks, no nuclear safety risks, and minimal impact on system and equipment operation. Periodic Testing (T): The probability / likelihood of an "adverse event" multiplied by the consequences / severity of the event. Low Risk: Requires consideration, but usually does not require significant special measures; no risk, no measures needed.

[0004] The factors for determining maintenance classification are related to product manuals or catalogs, acceptance standards, post-maintenance testing, special radiation permits or other permits, the number of workers, equipment level, and foreign object protection classification. There are a total of 13 factors influencing maintenance classification, which can combine to result in 16 different classification scenarios. Human judgment is time-consuming and prone to errors. Furthermore, various factors can arise during work order preparation and approval that necessitate reassessment of maintenance classification, leading to multiple classifications for a single work order and resulting in duplicate work.

[0005] With the increasing popularity and depth of computer technology, network technology, and artificial intelligence applications, the application and practice of IT technology can statistically identify the 13 factors affecting maintenance classification and calculate the correct maintenance classification through program algorithms. This can greatly improve the efficiency and accuracy of data processing, thereby improving work efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent calculation method for power plant maintenance classification, which can statistically identify 13 factors affecting maintenance classification and calculate the correct maintenance classification through a program algorithm, thereby greatly improving the efficiency and accuracy of data processing and thus improving work efficiency.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A smart calculation method for power plant maintenance classification. There are four possible results for maintenance classification: T, M1, M2, and M3. The priority of the values ​​is T>M1>M2>M3. There are a total of 16 cases in the judgment. The condition with the highest priority is judged first. If any one of the 16 cases matches, the value is taken and subsequent cases will not be logically calculated.

[0009]

[0010]

[0011] The maintenance classification matching logic is shown in the table above.

[0012] Step 001: Determine the value of the work order task's job type. If the job type value is ST (Supervision Test), the maintenance classification will be T, and no further condition judgment will be performed. If the job type value is not ST (Supervision Test), prepare for the logical judgment that the maintenance classification is M1.

[0013] Step 002: After determining the job type, the following algorithm is used to determine the maintenance classification:

[0014] 1) Foreign object prevention classification = F1 & Equipment classification = S, Maintenance classification is M1;

[0015] 2)(Cooperation work > 5 hours or work period ≥ 72 hours or planned number of people ≥ 10) &(Equipment classification = S, A), maintenance classification = M1;

[0016] 3) Procedure / Solution Version = 0 & Equipment Classification = S, Maintenance Classification = M1;

[0017] 4) Hot work permit = Level 1 & Work order = Daily, Maintenance classification = M1;

[0018] 5) ISP license level = Level 2 or RWP license level = Level 1, repair classification = M1;

[0019] 6) Operational Risk Analysis Sheet = Y, Maintenance Classification = M1;

[0020] The above 6 cases are judged in turn. If any one of them satisfies the condition that the maintenance grade is M1, then no further value judgment is needed. If none of the 6 cases satisfy the condition that the maintenance grade is M1, then the logical judgment for the maintenance grade to be M2 will be prepared.

[0021] Step 003: If no corresponding value is found after matching for maintenance classification M1, then matching will be performed for maintenance classification M2. The following conditions need to be checked:

[0022] 1) (Work coordination > 5 hours or work duration ≥ 72 hours or planned number of personnel ≥ 10) & Equipment classification = B, C

[0023] N), maintenance classification = M2;

[0024] 2) Foreign object prevention classification = F1 & Equipment classification = A or B, Maintenance classification = M2;

[0025] 3) Foreign object prevention classification = F2 level & equipment classification = S, maintenance classification = M2;

[0026] 4) Procedure or plan version = 0 & Equipment classification = A, B, C, N, Maintenance classification = M2;

[0027] 5) Procedure or scheme version > 0 & equipment classification = S, maintenance classification = M2;

[0028] 6) Hot work permit = Level 2 work order = daily maintenance, maintenance classification = M2;

[0029] 7) ISP license level = Level 1 or RWP license level = Level 2, repair rating = M2;

[0030] 8) Planned risk analysis = Yes & Operational risk analysis sheet = N, Maintenance classification = M2;

[0031] The above 8 cases are judged in turn. If any one of them satisfies the condition that the maintenance grade is M2, then no further value judgment is needed. If none of the 8 cases satisfy the condition that the maintenance grade is M2, then the logical judgment for the maintenance grade to be M3 will be prepared.

[0032] Step 004: If all the above T, M1, and M2 conditions are matched and no value is found, then the maintenance grade will be set to M3.

[0033] The beneficial effects achieved by this invention are as follows:

[0034] This invention can statistically identify 13 factors that affect maintenance classification and calculate the correct maintenance classification through the program's algorithm, which can greatly improve the efficiency and accuracy of data processing, thereby improving work efficiency. Detailed Implementation

[0035] The present invention will now be described in detail with reference to specific embodiments.

[0036] This invention includes intelligent identification of work order task maintenance classification, and automated analysis of the factors contributing to the current maintenance classification. Reports are provided at each stage of the process to facilitate subsequent statistics and error troubleshooting.

[0037] There are four possible outcomes for the maintenance classification: T, M1, M2, and M3. The priority of the values ​​determined by the algorithm is T > M1 > M2 > M3. The program considers 16 possible scenarios during the algorithm's evaluation. The algorithm prioritizes the highest priority conditions. If any one of the 16 conditions matches, a value is assigned, and subsequent conditions are not evaluated.

[0038] The specific maintenance grading matching logic is as follows:

[0039]

[0040]

[0041]

[0042] To achieve this function, the following steps are involved:

[0043] Step 001: Determine the value of the job type of the work order task. When the job type value is ST (Supervision Test), the maintenance grade will be T, and no further condition judgment will be performed. If the job type value is not ST (Supervision Test), prepare for the logical judgment of maintenance grade M1.

[0044] Step 002: After determining the work type, perform the following algorithm to determine the maintenance classification.

[0045] 7) Foreign object prevention classification = F1 & equipment classification = S, maintenance classification is M1.

[0046] 8)(Cooperation work > 5 or work period (hours) ≥ 72 or planned number of people ≥ 10) & (Equipment classification = S, A), maintenance classification = M1.

[0047] 9) Procedure / Scheme Version = 0 & Equipment Classification = S, Maintenance Classification = M1.

[0048] 10) Hot work permit = Level 1 & Work order = Daily, Maintenance classification = M1.

[0049] 11) ISP license level = Level 2 or RWP license level = Level 1, repair classification = M1;

[0050] 12) Operational Risk Analysis Sheet = Y, Maintenance Classification = M1.

[0051] The above six cases are evaluated sequentially. If any one of them satisfies the condition that the maintenance grade = M1, then no further value evaluation is needed. If none of the six cases satisfy the condition that the maintenance grade = M1, then the logical judgment for the maintenance grade of M2 is prepared.

[0052] Step 003: If no corresponding value is found after matching for maintenance classification M1, then matching will be performed for maintenance classification M2. The following conditions need to be checked:

[0053] 9)(Cooperation work > 5 or work period (hours) ≥ 72 or planned number of personnel ≥ 10) & Equipment classification = B, C

[0054] N), maintenance classification = M2.

[0055] 10) Foreign object prevention classification = F1 & Equipment classification = A or B, Maintenance classification = M2.

[0056] 11) Foreign object prevention classification = F2 level & equipment classification = S, maintenance classification = M2.

[0057] 12) Procedure or scheme version = 0 & equipment classification = A, B, C, N, maintenance classification = M2.

[0058] 13) Procedure or scheme version > 0 & equipment classification = S, maintenance classification = M2.

[0059] 14) Hot work permit = Level 2 work order = daily maintenance classification = M2.

[0060] 15) ISP license level = Level 1 or RWP license level = Level 2, repair rating = M2;

[0061] 16) Planned risk analysis = Yes & Operational risk analysis sheet = N, Maintenance classification = M2.

[0062] The above eight cases are evaluated sequentially. If any one of them satisfies the condition that the maintenance grade = M2, then no further value evaluation is needed. If none of the eight cases satisfy the condition that the maintenance grade = M2, then the logical judgment for the maintenance grade of M3 is prepared.

[0063] Step 004: If all the above T, M1, and M2 conditions are matched and no value is found, then the maintenance grade will be set to M3.

Claims

1. A method for intelligent calculation of power plant maintenance classification, characterized in that: There are four possible outcomes for the maintenance classification: T, M1, M2, and M3. The priority of the values ​​is T > M1 > M2 > M3. There are a total of 16 cases in the judgment. The condition with the highest priority is judged first. If any one of the 16 cases matches, the value is taken, and subsequent cases will not be logically calculated. The maintenance classification matching logic is shown in the table above.

2. The intelligent calculation method for power plant maintenance classification according to claim 1, characterized in that: Step 001: Determine the value of the work order task's job type. If the job type value is ST (Supervision Test), the maintenance classification will be T, and no further condition judgment will be performed. If the job type value is not ST (Supervision Test), prepare for the logical judgment that the maintenance classification is M1.

3. The intelligent calculation method for power plant maintenance classification according to claim 2, characterized in that: Step 002: After determining the job type, the following algorithm is used to determine the maintenance classification: 1) Foreign object prevention classification = F1 & Equipment classification = S, Maintenance classification is M1; 2)(Cooperation work > 5 hours or work period ≥ 72 hours or planned number of people ≥ 10) &(Equipment classification = S, A), maintenance classification = M1; 3) Procedure / Solution Version = 0 & Equipment Classification = S, Maintenance Classification = M1; 4) Hot work permit = Level 1 & Work order = Daily, Maintenance classification = M1; 5) ISP license level = Level 2 or RWP license level = Level 1, repair classification = M1; 6) Operational Risk Analysis Sheet = Y, Maintenance Classification = M1; The above 6 cases are judged in turn. If any one of them satisfies the condition that the maintenance grade is M1, then no further value judgment is needed. If none of the 6 cases satisfy the condition that the maintenance grade is M1, then the logical judgment for the maintenance grade to be M2 will be prepared.

4. The intelligent calculation method for power plant maintenance classification according to claim 3, characterized in that: Step 003: If no corresponding value is found after matching for maintenance classification M1, then matching will be performed for maintenance classification M2. The following conditions need to be checked: 1) (Work coordination > 5 hours or work duration ≥ 72 hours or planned number of personnel ≥ 10) & Equipment classification = B, C N), maintenance classification = M2; 2) Foreign object prevention classification = F1 & Equipment classification = A or B, Maintenance classification = M2; 3) Foreign object prevention classification = F2 level & equipment classification = S, maintenance classification = M2; 4) Procedure or plan version = 0 & Equipment classification = A, B, C, N, Maintenance classification = M2; 5) Procedure or scheme version > 0 & equipment classification = S, maintenance classification = M2; 6) Hot work permit = Level 2 work order = daily maintenance, maintenance classification = M2; 7) ISP license level = Level 1 or RWP license level = Level 2, repair rating = M2; 8) Planned risk analysis = Yes & Operational risk analysis sheet = N, Maintenance classification = M2; The above 8 cases are judged in turn. If any one of them satisfies the condition that the maintenance grade is M2, then no further value judgment is needed. If none of the 8 cases satisfy the condition that the maintenance grade is M2, then the logical judgment for the maintenance grade to be M3 will be prepared.

5. The intelligent calculation method for power plant maintenance classification according to claim 4, characterized in that: Step 004: If all the above T, M1, and M2 conditions are matched and no value is found, then the maintenance grade will be set to M3.

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