Management method and system for guaranteeing purchase quality of spare parts of nuclear power plant

Abstract

The invention discloses a management method and system for guaranteeing the purchase quality of spare parts of a nuclear power plant, and relates to the technical field of equipment reliability and maintenance, and the method comprises the steps: collecting and coding the information of nuclear power spare parts; before the spare parts are purchased, the qualification of the supplier is verified; a demand list is automatically generated in the purchasing stage according to the coding information of the spare parts; matching suppliers meeting conditions in a supplier database according to the content of the demand order, and generating a purchase order; the unique code of the safe and important spare part is collected, and an RFID label or a two-dimensional code label is pasted on the spare part; spare part codes and supplier information are checked by scanning RFID or two-dimensional code labels, it is ensured that the spare part information is consistent with a purchase order, and then the spare part information is put in storage. According to the invention, spare part purchasing quality process control is realized, technical clarification is greatly reduced, one-code multi-object problems are reduced, purchasing efficiency is improved, and counterfeiting is prevented, so that quality of safe and important spare parts is ensured, nuclear power plant equipment reliability is improved, and safe and stable operation of a unit is ensured.

Description

Technical Field

[0001] The present invention relates to the field of equipment reliability and maintenance technology, and in particular to a management method and system for ensuring the quality of nuclear power plant spare parts procurement. Background Art

[0002] Compared with conventional materials, nuclear power spare parts (spare parts include components and integral equipment) have their own particularities and must comply with relevant nuclear safety regulations and quality assurance requirements. Multiple management measures are taken to ensure the reliability of purchased nuclear power equipment and components to meet nuclear safety requirements and availability requirements.

[0003] In order to ensure the safe and stable operation of nuclear power units and comply with nuclear safety regulations and quality assurance requirements, the parameters of spare parts must be consistent with the parts on the original equipment to ensure that the equipment performance meets the original design requirements.

[0004] In addition, the localization rate of Hualong units has increased significantly, and many new suppliers have been introduced, resulting in low quality of upstream documents such as the EOMM manual and missing spare parts information. In the process of independent procurement of spare parts, except for the original supplier / manufacturer, it is difficult for other suppliers / manufacturers to accurately identify the required spare parts, which requires a lot of technical clarification, and there are problems and hidden dangers of low supply efficiency, supply errors, and even fraud. In particular, the supply of important safety spare parts will directly affect the daily and overhaul implementation of the unit, affect the reliability of the equipment, and then affect the safe and stable operation of the unit.

[0005] Most of the important safety equipment are non-standard products, which require detailed R&D and design by the manufacturers. The original procurement of spare parts also meets the conditions of the single-source procurement of Huaneng Group. It is necessary to purchase engineering, materials or services from the original successful bidder, otherwise it will affect the construction or functional matching requirements.

[0006] The present invention establishes a set of management methods for the procurement quality of spare parts for nuclear power plants to achieve spare parts procurement quality process control, reduce a large number of technical clarifications, reduce the problem of one code and multiple items, improve procurement efficiency and prevent fraud, thereby ensuring the quality of important safety spare parts, improving the reliability of nuclear power plant equipment, and ensuring the safe and stable operation of the unit. Summary of the invention

[0007] In view of the above-mentioned problems, the present invention is proposed.

[0008] Therefore, the technical problem solved by the present invention is: how to ensure the reliability of spare parts quality, accuracy and anti-counterfeiting of information during the spare parts procurement process of nuclear power plants to meet nuclear safety regulations and quality assurance requirements, thereby improving spare parts procurement efficiency and reducing quality risks.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a management method for ensuring the quality of nuclear power plant spare parts procurement, which comprises the following steps:

[0010] Collect and encode information on nuclear power spare parts;

[0011] Verify the supplier's qualifications before purchasing spare parts;

[0012] Automatically generate demand orders based on spare parts coding information during the procurement phase;

[0013] According to the content of the demand order, the qualified suppliers are matched in the supplier database to generate a purchase order;

[0014] Collect the unique code of safety-critical spare parts and attach RFID tags or QR code labels to the spare parts;

[0015] When spare parts arrive, scan the RFID or QR code tag to check the spare part code and supplier information to ensure that the spare part information is consistent with the purchase order before putting it into storage.

[0016] As a preferred solution of a management method for ensuring the quality of nuclear power plant spare parts procurement according to the present invention, the collecting and encoding of nuclear power spare parts information includes:

[0017] Collect the quality assurance level, nuclear regulatory attributes and manufacturer information of spare parts, and connect to the quality management system of the nuclear power plant for information verification. Generate a unique code for the spare parts information according to the coding rules, encrypt the code through a hash algorithm, and store the encrypted code information in the blockchain distributed ledger to generate an encrypted spare parts identification. The encrypted spare parts identification is embedded in an RFID tag or a QR code tag, and the tag is pasted on the surface of the spare part. At each circulation node in the supply chain, the encrypted coding information of the spare parts is checked through the distributed ledger. If the information is detected to be inconsistent, an alarm is issued and the circulation status of the spare parts is locked. Set data access permission levels through the blockchain platform to enable nuclear power plants, suppliers and regulatory agencies to access the corresponding spare parts information according to the authorization level.

[0018] As a preferred solution of a management method for ensuring the quality of nuclear power plant spare parts procurement described in the present invention, the qualification of the supplier is verified before the spare parts procurement, including:

[0019] Based on the supplier's qualification certificate, historical delivery status, spare parts qualification rate, and quality event records, a supplier qualification data table is established, and the supplier's key indicator information is stored in separate fields and managed in a unified manner. The supplier information fields in the data table are matched and verified item by item to screen out suppliers that meet the nuclear power plant spare parts procurement requirements; the information of suppliers whose qualifications meet the requirements is entered into the database to create a list of optional suppliers.

[0020] As a preferred solution of a management method for ensuring the quality of nuclear power plant spare parts procurement described in the present invention, wherein: the automatic generation of a demand sheet according to the coding information of the spare parts during the procurement stage includes:

[0021] Collect spare parts demand data in real time, including spare parts codes, quantities, warranty levels and regulatory attributes, import them into the procurement module, trigger the demand form generation process, set coding rules in the procurement module, and automatically generate a standardized demand form containing detailed spare parts requirements by comparing spare parts codes, warranty levels and regulatory attributes;

[0022] Automatically check the generated demand form to ensure that all key fields are filled in completely and in accordance with the standard format. If there are any missing or incorrect fields, they will be automatically marked and the purchasing staff will be notified to make corrections.

[0023] After verification, the demand order is stored in the purchasing management system and marked with a unique number.

[0024] As a preferred solution of a management method for ensuring the quality of nuclear power plant spare parts procurement described in the present invention, wherein: matching qualified suppliers in a supplier database according to the content of the demand order to generate a purchase order includes:

[0025] Extract spare parts code, warranty level, regulatory attributes, quantity and delivery cycle from the demand order and perform data standardization.

[0026] Eliminate suppliers that do not meet the requirements by comparing the supplier's qualification level, regulatory attributes and historical quality event records item by item in the supplier database;

[0027] Apply dynamic optimization logic to the selected suppliers, giving priority to suppliers with the shortest delivery cycle and the highest historical qualification rate; if there are suppliers with the same delivery cycle and qualification rate, further compare the historical return rates;

[0028] After the supplier is finally selected, the system generates a purchase order containing the spare part code, quantity, supplier information and key conditions, and generates a unique order number;

[0029] The generated purchase order is automatically pushed to the ERP system and enters the hierarchical review process; after the order is reviewed and approved, the system immediately sends an order confirmation notification to the selected supplier.

[0030] As a preferred solution of a management method for ensuring the quality of nuclear power plant spare parts procurement described in the present invention, wherein: the collecting of unique codes of important safety spare parts and attaching RFID tags or QR code tags on the spare parts includes:

[0031] Get the unique code of each spare part, generate an RFID tag or QR code tag based on the collected code, embed the coding information in the tag, and improve the anti-counterfeiting performance through encryption algorithm. Select the appropriate pasting process according to the surface material of the spare part, and firmly paste the label on the surface of the spare part. Confirm that the label code is consistent with the system record through verification scanning. If it does not match, an alarm will be issued for inspection.

[0032] As a preferred solution of a management method for ensuring the quality of nuclear power plant spare parts procurement described in the present invention, when the spare parts arrive, the spare parts code and supplier information are checked by scanning the RFID or QR code label to ensure that the spare parts information is consistent with the purchase order, and then the storage includes:

[0033] Use an RFID card reader or QR code scanning device to scan the labels of the arriving spare parts, read the unique coding information in the labels, automatically extract the corresponding purchase order information from the procurement management system, and compare the spare part code, supplier information, quantity and other data in the order with the scanned information item by item;

[0034] If any information inconsistency is found during the comparison process, the system will automatically trigger the exception handling process, mark the current batch of spare parts as pending review, and send an exception reminder;

[0035] If the comparison is consistent, the status of the current batch of spare parts will be updated to verified, and a warehouse entry form will be generated, and the warehouse entry information will be automatically recorded in the inventory management module to complete the spare parts warehouse entry confirmation and inventory update.

[0036] Another object of the present invention is to provide a management system for ensuring the quality of nuclear power plant spare parts procurement, which can solve the problems of inaccurate information, low supplier review efficiency, non-standard procurement requirements, non-objective supplier selection, incomplete inventory information verification, etc. in the nuclear power spare parts procurement process in the prior art through the full process management of unique code generation and encryption tag management of spare parts, supplier qualification verification, automated purchase demand form generation, dynamic supplier optimization and inventory verification process.

[0037] To solve the above technical problems, the present invention provides the following technical solutions: a management system for ensuring the quality of nuclear power plant spare parts procurement, including: a coding and labeling management module, a supplier qualification verification module, a procurement demand and order management module, and a warehousing and inventory management module.

[0038] The coding and label management module is responsible for the collection of nuclear power spare parts information, the generation and encryption of unique codes, and the generation and pasting of RFID tags or QR code tags.

[0039] The warranty level, regulatory attributes and manufacturer information of spare parts are collected from the quality management system, and a unique code for the spare parts is generated according to the preset coding rules. The code is encrypted using a hash encryption algorithm and stored in the blockchain distributed ledger. An RFID tag or QR code tag containing the encrypted coding information is generated, and an appropriate pasting process is selected according to the surface material of the spare part to paste the label onto the spare part. An RFID tag or QR code tag containing the encrypted coding information is generated, and an appropriate pasting process is selected according to the surface material of the spare part to paste the label onto the spare part. After the label is pasted, a verification scan is performed, and the code and label information are recorded in the traceability management module.

[0040] The supplier qualification verification module verifies the supplier's qualifications before purchasing spare parts.

[0041] Establish a supplier qualification data table to record the supplier's qualification certificate, historical delivery record, qualification rate and quality events, automatically verify the supplier's qualification certificate and key indicators, verify whether the supplier meets the quality and safety standards of spare parts through item-by-item matching, store the supplier information that meets the qualification requirements in the qualified supplier database, and form a list of optional suppliers.

[0042] The purchase demand and order management module is responsible for automatically generating purchase demand sheets, screening qualified suppliers, and generating and reviewing final purchase orders.

[0043] Collect spare parts demand data in real time, import it into the procurement module, automatically generate demand orders based on coding rules, automatically verify the generated demand orders, store the demand orders in the procurement management system, generate unique numbers, screen qualified suppliers in the qualified supplier database based on the content of the demand orders, use dynamic optimization logic to screen the best suppliers, generate purchase orders containing spare parts codes, supplier information, quantity and warranty requirements, and push them to the ERP system to enter the hierarchical review process. After the review is passed, send an order confirmation notification to the selected supplier.

[0044] The warehousing and inventory management module manages the warehousing confirmation, information verification and inventory update of spare parts;

[0045] When spare parts arrive, use an RFID card reader or QR code scanning device to read the unique coding information in the spare parts label, and automatically extract the corresponding purchase order information. Compare the spare parts code, supplier information and quantity in the label with the information in the purchase order item by item, and record the spare parts information in the inventory management module to complete the warehousing confirmation and inventory status update.

[0046] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the management method for ensuring the quality of nuclear power plant spare parts procurement are implemented as described above.

[0047] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the management method for ensuring the quality of nuclear power plant spare parts procurement as described above.

[0048] Beneficial effects of the present invention: The present invention solves the problems of inaccurate information, inefficient qualification review, strong subjectivity in supplier selection, and incomplete warehousing verification in the procurement of spare parts for nuclear power plants through technologies such as unique coding encryption, anti-counterfeiting label management, automatic verification of supplier qualifications, dynamic optimization logic, and blockchain distributed ledgers. The system can ensure the uniqueness and traceability of spare parts information, improve compliance through automated supplier qualification screening, and scientifically select the best suppliers with dynamic optimization logic to ensure an accurate and efficient procurement process. Information verification and real-time inventory updates at the warehousing stage make inventory data accurate and reliable. Blockchain technology runs through the entire spare parts management process to achieve secure storage and non-tamperability of information, greatly improving the transparency and quality assurance capabilities of nuclear power spare parts procurement, ensuring that spare parts meet the high safety standards of the nuclear power industry, thereby ensuring the safe and stable operation of nuclear power plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0050] Figure 1 An overall flow chart of a management method for ensuring the quality of nuclear power plant spare parts procurement provided in the first embodiment of the present invention. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0052] Example 1, reference Figure 1 According to an embodiment of the present invention, a management method for ensuring the quality of nuclear power plant spare parts procurement is provided, comprising:

[0053] Collect and encode information on nuclear power spare parts;

[0054] Verify the supplier's qualifications before purchasing spare parts;

[0055] Automatically generate demand orders based on spare parts coding information during the procurement phase;

[0056] According to the content of the demand order, the qualified suppliers are matched in the supplier database to generate a purchase order;

[0057] Collect the unique code of safety-critical spare parts and attach RFID tags or QR code labels to the spare parts;

[0058] When spare parts arrive, scan the RFID or QR code tag, check the spare part code and supplier information, ensure that the spare part information is consistent with the purchase order, and then put it into storage.

[0059] Collect the quality assurance level, nuclear regulatory attributes and manufacturer information of spare parts, and connect to the quality management system of the nuclear power plant for information verification. Generate a unique code for the spare parts information according to the coding rules, encrypt the code through a hash algorithm, and store the encrypted code information in the blockchain distributed ledger to generate an encrypted spare parts identification. The encrypted spare parts identification is embedded in an RFID tag or a QR code tag, and the tag is pasted on the surface of the spare part. At each circulation node in the supply chain, the encrypted coding information of the spare parts is checked through the distributed ledger. If the information is detected to be inconsistent, an alarm is issued and the circulation status of the spare parts is locked. Set data access permission levels through the blockchain platform to enable nuclear power plants, suppliers and regulatory agencies to access the corresponding spare parts information according to the authorization level.

[0060] Based on the supplier's qualification certificate, historical delivery status, spare parts qualification rate, and quality event records, a supplier qualification data table is established, and the supplier's key indicator information is stored in separate fields and managed in a unified manner. The supplier information fields in the data table are matched and verified item by item to screen out suppliers that meet the nuclear power plant spare parts procurement requirements; the information of suppliers whose qualifications meet the requirements is entered into the database to create a list of optional suppliers.

[0061] It is further explained that:

[0062] Establish a supplier qualification data table and define several key fields, including supplier qualification certificates (such as ISO9001 certification, nuclear power industry qualifications, etc.), historical delivery status, spare parts qualification rate, quality event records, etc.

[0063] Establish a standardized database table structure through a database management system (such as MySQL, SQL Server, etc.) to facilitate information input, management and query.

[0064] Supplier information can be entered into the qualification data table through the system interface or manual entry; and connected to the nuclear power plant quality management system through the interface.

[0065] Configure the interface API to receive and update the latest information from suppliers in real time; ensure the accuracy of data input by setting field constraints (such as only valid certificate numbers can be entered in specific fields, etc.).

[0066] Use the system's built-in field comparison function to compare each supplier's qualification certificate, pass rate, delivery history and other fields with the nuclear power plant's quality management system requirements item by item.

[0067] Standard numerical values ​​or specific indicators for nuclear power plant qualification requirements are preset in the system, and field values ​​are verified programmatically. For example, suppliers with a pass rate below 90% are automatically eliminated, or suppliers with a record of major quality incidents are directly marked as "not selectable".

[0068] Filter the supplier information that has passed the above qualification verification and store it in the "Qualified Supplier List" data table for subsequent procurement.

[0069] Based on the verification results, qualified suppliers are screened through SQL query statements and the database table is updated, and the qualified supplier information is saved separately.

[0070] Supplier information is updated regularly, and supplier database tables are queried and called in real time to meet the dynamic requirements of procurement.

[0071] Configure update plans to synchronize data from the quality management system regularly; call the qualified supplier list data table in the procurement process to obtain the latest optional supplier information.

[0072] Collect spare parts demand data in real time, including spare parts codes, quantities, warranty levels and regulatory attributes, import them into the procurement module, trigger the demand form generation process, set coding rules in the procurement module, and automatically generate a standardized demand form containing detailed spare parts requirements by comparing spare parts codes, warranty levels and regulatory attributes;

[0073] Automatically check the generated demand form to ensure that all key fields are filled in completely and in accordance with the standard format. If there are any missing or incorrect fields, they will be automatically marked and the purchasing staff will be notified to make corrections.

[0074] After verification, the demand order is stored in the purchasing management system and marked with a unique number.

[0075] Extract spare parts code, warranty level, regulatory attributes, quantity and delivery cycle from the demand order and perform data standardization.

[0076] Eliminate suppliers that do not meet the requirements by comparing the supplier's qualification level, regulatory attributes and historical quality event records item by item in the supplier database;

[0077] Apply dynamic optimization logic to the selected suppliers, giving priority to suppliers with the shortest delivery cycle and the highest historical qualification rate; if there are suppliers with the same delivery cycle and qualification rate, further compare the historical return rates;

[0078] After the supplier is finally selected, the system generates a purchase order containing the spare part code, quantity, supplier information and key conditions, and generates a unique order number;

[0079] The generated purchase order is automatically pushed to the ERP system and enters the hierarchical review process; after the order is reviewed and approved, the system immediately sends an order confirmation notification to the selected supplier.

[0080] Get the unique code of each spare part, generate an RFID tag or QR code tag based on the collected code, embed the coding information in the tag, and improve the anti-counterfeiting performance through encryption algorithm. Select the appropriate pasting process according to the surface material of the spare part, and firmly paste the label on the surface of the spare part. Confirm that the label code is consistent with the system record through verification scanning. If it does not match, an alarm will be issued for inspection.

[0081] Use an RFID card reader or QR code scanning device to scan the labels of the arriving spare parts, read the unique coding information in the labels, automatically extract the corresponding purchase order information from the procurement management system, and compare the spare part code, supplier information, quantity and other data in the order with the scanned information item by item;

[0082] If any information inconsistency is found during the comparison process, the system will automatically trigger the exception handling process, mark the current batch of spare parts as pending review, and send an exception reminder;

[0083] If the comparison is consistent, the status of the current batch of spare parts will be updated to verified, and a warehouse entry form will be generated, and the warehouse entry information will be automatically recorded in the inventory management module to complete the spare parts warehouse entry confirmation and inventory update.

[0084] Embodiment 2 is an embodiment of the present invention, which provides a system for managing a method for ensuring the quality of nuclear power plant spare parts procurement, including: a coding and labeling management module, a supplier qualification verification module, a procurement demand and order management module, and a warehousing and inventory management module;

[0085] The coding and label management module is responsible for the collection of nuclear power spare parts information, the generation and encryption of unique codes, and the generation and pasting of RFID tags or QR code tags;

[0086] The warranty level, regulatory attributes and manufacturer information of spare parts are collected from the quality management system, and a unique code for the spare parts is generated according to the preset coding rules. The code is encrypted using a hash encryption algorithm and stored in the blockchain distributed ledger. An RFID tag or QR code tag containing the encrypted coding information is generated, and an appropriate pasting process is selected according to the surface material of the spare part to paste the label onto the spare part. An RFID tag or QR code tag containing the encrypted coding information is generated, and an appropriate pasting process is selected according to the surface material of the spare part to paste the label onto the spare part. After the label is pasted, a verification scan is performed, and the code and label information are recorded in the traceability management module.

[0087] The supplier qualification verification module verifies the supplier's qualifications before purchasing spare parts;

[0088] Establish a supplier qualification data table to record the supplier's qualification certificate, historical delivery record, qualification rate and quality events, automatically check the supplier's qualification certificate and key indicators, verify whether the supplier meets the quality and safety standards of spare parts by matching item by item, store the supplier information that meets the qualification requirements in the qualified supplier database, and form a list of optional suppliers;

[0089] The purchase demand and order management module is responsible for the automatic generation of purchase demand sheets, screening of qualified suppliers, and generation and review of final purchase orders;

[0090] Collect spare parts demand data in real time, import it into the procurement module, automatically generate demand orders according to coding rules, automatically verify the generated demand orders, store the demand orders in the procurement management system, generate unique numbers, screen qualified suppliers in the qualified supplier database according to the content of the demand orders, use dynamic optimization logic to screen the best suppliers, generate purchase orders containing spare parts codes, supplier information, quantity and warranty requirements, and push them to the ERP system to enter the hierarchical review process. After the review is passed, send an order confirmation notification to the selected supplier;

[0091] The warehousing and inventory management module manages the warehousing confirmation, information verification and inventory update of spare parts;

[0092] When spare parts arrive, use an RFID card reader or QR code scanning device to read the unique coding information in the spare parts label, and automatically extract the corresponding purchase order information. Compare the spare parts code, supplier information and quantity in the label with the information in the purchase order item by item, and record the spare parts information in the inventory management module to complete the warehousing confirmation and inventory status update.

[0093] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program code.

[0094] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0095] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0096] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0097] Embodiment 3: In this embodiment, in order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments. This embodiment experiments the existing traditional method and the method of this embodiment respectively.

[0098] In order to objectively demonstrate the beneficial effects of the present invention in the quality management of nuclear power plant spare parts procurement through simulation experiments, an experimental framework can be designed to compare the present invention with the traditional procurement management system, focusing on the improvement of information accuracy, anti-counterfeiting, supplier selection efficiency, demand order integrity and inventory management accuracy. By setting a series of experimental scenarios, collecting and collating comparative data, and presenting them in a table form, the advantages of the present invention can be effectively demonstrated.

[0099] The advantages of the present invention in the quality management of spare parts procurement for nuclear power plants are verified, including coding uniqueness and traceability, supplier qualification verification efficiency, accuracy of demand form generation, rationality of supplier selection, accuracy of warehousing verification and real-time inventory management.

[0100] Experimental group: using the nuclear power plant spare parts procurement quality management system of the present invention.

[0101] Control group: using traditional spare parts procurement management methods or systems.

[0102] The experiment sets up several key scenarios to comprehensively compare the performance of the two groups:

[0103] Spare parts information entry and coding management: Compare the uniqueness, repetition rate and information encryption of the codes.

[0104] Supplier qualification verification efficiency: Statistics on the time and accuracy of supplier qualification verification for each batch.

[0105] Request Form Generation and Completeness: Compare the completeness, error rate, and generation speed of the generated request form fields.

[0106] Supplier selection efficiency: Compare supplier screening accuracy and dynamic optimization efficiency.

[0107] Incoming verification and inventory accuracy: Compare the consistency of incoming information with purchase orders and the timeliness of inventory data updates.

[0108] Data collection and comparison indicators:

[0109] Coding management comparison: statistics on the accuracy of unique code generation, the number of anti-tampering checks, the success rate of label anti-counterfeiting, etc.

[0110] Comparison of supplier qualification verification: Statistics on the verification time and error rate of each batch of suppliers.

[0111] Demand order generation comparison: Statistics on demand order generation time, completeness, and error rate.

[0112] Comparison of supplier selection efficiency: Calculate the average time and accuracy of supplier screening and selection for each batch.

[0113] Comparison between incoming verification and inventory update: Statistics on incoming verification error rate and inventory update delay time.

[0114] Table 1 Simulation experiment data table

[0115]

[0116]

[0117] Through the comparison of simulation experimental data, it can be clearly seen that the present invention has shown significant performance improvement and advantages in the key links of nuclear power plant spare parts procurement management. First, in terms of spare parts coding management, the present invention achieves 100% unique coding accuracy, completely avoids the problem of coding duplication, and increases the label anti-counterfeiting success rate to 98%, greatly enhancing the security and tamper-proof nature of spare parts information.

[0118] In the supplier qualification verification stage, automated verification shortens the verification time for each batch from 20 minutes in the traditional system to 5 minutes, and increases the verification accuracy from 87% to 99%, effectively reducing human audit errors and improving the compliance and efficiency of supplier screening.

[0119] In terms of generating purchase requisitions, the automated generation function of the present invention can complete the creation of requisitions within 1 minute, ensuring the integrity and accuracy of the information and avoiding common information missing and errors in the traditional manual generation of requisitions.

[0120] In the supplier selection process, the dynamic optimization logic reduces the screening time from 10 minutes to 2 minutes, and the supplier selection accuracy rate is significantly improved to 97%, ensuring the scientific selection of the best supplier. In terms of spare parts warehousing and inventory management, the present invention achieves 99% consistency of warehousing information, and the inventory data update delay is only 1 second, ensuring the accurate verification of the warehousing link and the real-time synchronization of inventory data.

[0121] In summary, the present invention has significant advantages in terms of information accuracy, anti-counterfeiting, qualification verification efficiency, standardization of demand form generation, scientific supplier screening and real-time inventory data, providing a more efficient, safe and reliable solution for the quality management of nuclear power plant spare parts procurement.

[0122] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A management method for ensuring the quality of nuclear power plant spare parts procurement, characterized in that: include: Collect and encode information on nuclear power spare parts; Verify the supplier's qualifications before purchasing spare parts; Automatically generate demand orders based on spare parts coding information during the procurement phase; According to the content of the demand order, the qualified suppliers are matched in the supplier database to generate a purchase order; Collect the unique code of safety-critical spare parts and attach RFID tags or QR code labels to the spare parts; When spare parts arrive, scan the RFID or QR code tag to check the spare part code and supplier information to ensure that the spare part information is consistent with the purchase order before putting it into storage.

2. A management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in claim 1, characterized in that: The collecting and coding of nuclear power spare parts information includes: Collect the quality assurance level, nuclear regulatory attributes and manufacturer information of spare parts, and connect to the quality management system of the nuclear power plant for information verification. Generate a unique code for the spare parts information according to the coding rules, encrypt the code through a hash algorithm, and store the encrypted code information in the blockchain distributed ledger to generate an encrypted spare parts identification. The encrypted spare parts identification is embedded in an RFID tag or a QR code tag, and the tag is pasted on the surface of the spare part. At each circulation node in the supply chain, the encrypted coding information of the spare parts is checked through the distributed ledger. If the information is detected to be inconsistent, an alarm is issued and the circulation status of the spare parts is locked. Set data access permission levels through the blockchain platform to enable nuclear power plants, suppliers and regulatory agencies to access the corresponding spare parts information according to the authorization level.

3. A management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in claim 2, characterized in that: The verification of supplier qualifications before purchasing spare parts includes: Based on the supplier's qualification certificate, historical delivery status, spare parts qualification rate, and quality event records, a supplier qualification data table is established to store and manage the supplier's key indicator information in separate fields. The supplier information fields in the data table are matched and verified item by item to select suppliers that meet the nuclear power plant spare parts procurement requirements; Enter the information of suppliers who meet the qualification requirements into the database and make a list of optional suppliers.

4. A management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in claim 3, characterized in that: The automatic generation of a demand sheet based on the coding information of spare parts during the procurement phase includes: Collect spare parts demand data in real time, including spare parts codes, quantities, warranty levels and regulatory attributes, import them into the procurement module, trigger the demand form generation process, set coding rules in the procurement module, and automatically generate a standardized demand form containing detailed spare parts requirements by comparing spare parts codes, warranty levels and regulatory attributes; Automatically check the generated demand form to ensure that all key fields are filled in completely and in accordance with the standard format. If there are any missing or incorrect fields, they will be automatically marked and the purchasing staff will be notified to make corrections. After verification, the demand order is stored in the purchasing management system and marked with a unique number.

5. A management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in claim 4, characterized in that: The step of matching qualified suppliers in the supplier database according to the demand order content and generating a purchase order includes: Extract spare parts code, warranty level, regulatory attributes, quantity and delivery cycle from the demand order and perform data standardization. Eliminate suppliers that do not meet the requirements by comparing the supplier's qualification level, regulatory attributes and historical quality event records item by item in the supplier database; Apply dynamic optimization logic to the selected suppliers, giving priority to suppliers with the shortest delivery cycle and the highest historical qualification rate; if there are suppliers with the same delivery cycle and qualification rate, further compare the historical return rates; After the supplier is finally selected, the system generates a purchase order containing the spare part code, quantity, supplier information and key conditions, and generates a unique order number; The generated purchase order is automatically pushed to the ERP system and enters the hierarchical review process; After the order is reviewed and approved, the system will immediately send an order confirmation notification to the selected supplier.

6. A management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in claim 5, characterized in that: The collecting of unique codes of important safety spare parts and attaching RFID tags or QR code tags on the spare parts include: Get the unique code of each spare part, generate an RFID tag or QR code tag based on the collected code, embed the coding information in the tag, and improve the anti-counterfeiting performance through encryption algorithm. Select the appropriate pasting process according to the surface material of the spare part, and firmly paste the label on the surface of the spare part. Confirm that the label code is consistent with the system record through verification scanning. If it does not match, an alarm will be issued for inspection.

7. A management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in claim 6, characterized in that: When the spare parts arrive, the spare parts code and supplier information are checked by scanning the RFID or QR code tag to ensure that the spare parts information is consistent with the purchase order, and then the spare parts are put into storage, including: Use an RFID card reader or QR code scanning device to scan the labels of the arriving spare parts, read the unique coding information in the labels, automatically extract the corresponding purchase order information from the procurement management system, and compare the spare part code, supplier information, quantity and other data in the order with the scanned information item by item; If any information inconsistency is found during the comparison process, the system will automatically trigger the exception handling process, mark the current batch of spare parts as pending review, and send an exception reminder; If the comparison is consistent, the status of the current batch of spare parts will be updated to verified, and a warehouse entry form will be generated, and the warehouse entry information will be automatically recorded in the inventory management module to complete the spare parts warehouse entry confirmation and inventory update.

8. A system adopting a management method for ensuring the quality of nuclear power plant spare parts procurement as claimed in any one of claims 1 to 7, characterized in that: It includes coding and labeling management module, supplier qualification verification module, purchase demand and order management module, and warehousing and inventory management module; The coding and label management module is responsible for the collection of nuclear power spare parts information, the generation and encryption of unique codes, and the generation and pasting of RFID tags or QR code tags; The warranty level, regulatory attributes and manufacturer information of spare parts are collected from the quality management system, and a unique code for the spare parts is generated according to the preset coding rules. The code is encrypted using a hash encryption algorithm and stored in the blockchain distributed ledger. An RFID tag or QR code tag containing the encrypted coding information is generated, and an appropriate pasting process is selected according to the surface material of the spare part to paste the label onto the spare part. An RFID tag or QR code tag containing the encrypted coding information is generated, and an appropriate pasting process is selected according to the surface material of the spare part to paste the label onto the spare part. After the label is pasted, a verification scan is performed, and the code and label information are recorded in the traceability management module. The supplier qualification verification module verifies the supplier's qualifications before purchasing spare parts; Establish a supplier qualification data table to record the supplier's qualification certificate, historical delivery record, qualification rate and quality events, automatically check the supplier's qualification certificate and key indicators, verify whether the supplier meets the quality and safety standards of spare parts by matching item by item, store the supplier information that meets the qualification requirements in the qualified supplier database, and form a list of optional suppliers; The purchase demand and order management module is responsible for the automatic generation of purchase demand sheets, screening of qualified suppliers, and generation and review of final purchase orders; Collect spare parts demand data in real time, import it into the procurement module, automatically generate demand orders according to coding rules, automatically verify the generated demand orders, store the demand orders in the procurement management system, generate unique numbers, screen qualified suppliers in the qualified supplier database according to the content of the demand orders, use dynamic optimization logic to screen the best suppliers, generate purchase orders containing spare parts codes, supplier information, quantity and warranty requirements, and push them to the ERP system to enter the hierarchical review process. After the review is passed, send an order confirmation notification to the selected supplier; The warehousing and inventory management module manages the warehousing confirmation, information verification and inventory update of spare parts; When spare parts arrive, use an RFID card reader or QR code scanning device to read the unique coding information in the spare parts label, and automatically extract the corresponding purchase order information. Compare the spare parts code, supplier information and quantity in the label with the information in the purchase order item by item, and record the spare parts information in the inventory management module to complete the warehousing confirmation and inventory status update.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of a management method for ensuring the procurement quality of nuclear power plant spare parts as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of a management method for ensuring the quality of nuclear power plant spare parts procurement as described in any one of claims 1 to 7 are implemented.

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