Method and device for evaluating environmental influence of radioactive effluents of multi-reactor nuclear power plant, storage medium and electronic equipment

Abstract

The invention relates to a multi-reactor nuclear power plant radioactive effluent environmental impact evaluation method and device, a storage medium and electronic equipment. The method comprises the following steps: acquiring parameter data required by evaluation; performing gaseous and liquid diffusion simulation calculation on each reactor based on the parameter data to obtain space and medium distribution of radionuclide concentration; calculating according to the space and medium distribution in combination with public activity data to obtain public dose caused by radioactive effluent emission of each reactor; performing dose superposition analysis according to the public dose to obtain a dose superposition result; and performing environmental impact evaluation according to the dose superposition result to obtain an environmental impact evaluation result. According to the method, superposition calculation of public doses caused by emission of the radioactive effluents of the multiple reactors and evaluation on the influence on the environment can be achieved, automation and informatization of the evaluation process are achieved, the evaluation efficiency and accuracy are improved, and powerful technical support is provided for environment supervision and safe operation of the multi-reactor nuclear power plant.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental impact assessment of nuclear power plants, and more specifically to a method, device, storage medium and electronic equipment for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant. Background Art

[0002] The discharge of radioactive effluents from nuclear power plant operations and the resulting radioactive environmental impacts have always been a key focus of nuclear power plant radiation protection, radioactive waste management, and environmental impact assessments. Radioactive effluents refer to radionuclides generated by the normal operation of reactors, which have been treated to meet relevant standards and then released into the environment in gaseous or liquid form through predetermined pathways.

[0003] In multi-reactor nuclear power plants, where multiple reactors operate simultaneously, the emission of radioactive effluents is even more complex. Accurately assessing the environmental impact of radioactive effluents from multi-reactor nuclear power plants, particularly the additive impact of public doses from the release of gaseous and liquid radioactive effluents under normal operating conditions, is crucial for ensuring safety and environmental health.

[0004] At present, although there are standards and methods for estimating the public dose caused by the discharge of effluent from a single reactor, such as the "Method for Estimating the Public Dose Caused by Reactor Effluent Discharges", the method for superimposing the public dose caused by radioactive effluent discharges from multiple reactors in a multi-reactor nuclear power plant is still imperfect, and there is a lack of systematic and comprehensive evaluation technology. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a method, device, storage medium and electronic equipment for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant.

[0006] The technical solution adopted by the present invention to solve the technical problem is to construct a method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant, comprising the following steps:

[0007] Obtain parameter data required for evaluation;

[0008] Performing gaseous and liquid diffusion simulation calculations on each reactor based on the parameter data required for the evaluation to obtain the spatial and medium distribution of radionuclide concentrations;

[0009] Calculate the public dose due to radioactive effluent emissions from each reactor based on the spatial and medium distribution of the radionuclide concentrations and in combination with public activity data;

[0010] Performing a dose superposition analysis on the public doses caused by the radioactive effluent emissions from each reactor to obtain a dose superposition result of the public doses caused by the radioactive effluent emissions from a multi-reactor nuclear power plant under normal operating conditions;

[0011] The environmental impact of the radioactive effluent discharge from the multi-reactor nuclear power plant is evaluated based on the dose superposition result to obtain an environmental impact assessment result.

[0012] In the method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant described in the present invention, the reactors in the reactor group are a combination of reactors that share the same gaseous and liquid radioactive effluent discharge port.

[0013] In the environmental impact assessment method for radioactive effluents from a multi-reactor nuclear power plant described in the present invention, there is one and only one reference reactor in the reactor group, and the geographical location-related assessment data in the parameter data is centered on the reference reactor.

[0014] In the method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant according to the present invention, performing a dose superposition analysis based on the public dose caused by the radioactive effluent discharges from each reactor to obtain a dose superposition result of the public dose caused by the radioactive effluent discharges from the multi-reactor nuclear power plant under normal operating conditions includes:

[0015] For the general public in each sub-area, a reference coordinate system is constructed with the reference reactor as the center, and a dose superposition analysis of the public dose caused by the radioactive effluent emissions of each reactor is performed in the reference coordinate system according to the area weighted method to obtain the dose superposition results of the public dose caused by the radioactive effluent emissions under normal operating conditions of a multi-reactor nuclear power plant;

[0016] For the key resident group, the public dose caused by the radioactive effluent emissions of each reactor is directly superimposed to obtain the dose superposition results of the public dose caused by radioactive effluent emissions under normal operating conditions of multi-reactor nuclear power plants.

[0017] In the method for assessing the environmental impact of radioactive effluents from a multi-reactor nuclear power plant according to the present invention, constructing a reference coordinate system with the reference reactor as the center, and performing a dose superposition analysis on the public dose caused by the radioactive effluent emissions from each reactor according to the area-weighted method in the reference coordinate system, obtaining a dose superposition result of the public dose caused by the radioactive effluent emissions from the multi-reactor nuclear power plant under normal operating conditions includes:

[0018] Constructing a reference coordinate system with the reference reactor as the center to form a standard sub-area set;

[0019] Traversing each sub-area in the standard sub-area set;

[0020] Traverse each reactor and obtain all superimposed dose sub-items;

[0021] All the above-mentioned superimposed dose sub-items are accumulated to obtain the dose superposition result.

[0022] In the method for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant of the present invention, traversing each reactor includes:

[0023] If the reactor is a reference reactor, the dose of the sub-area of ​​the reference reactor is directly taken as the superposition dose sub-item;

[0024] If the reactor is a non-reference reactor, all sub-areas of the non-reference reactor are traversed to obtain corresponding superposition dose sub-items.

[0025] In the method for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant of the present invention, the method further comprises:

[0026] Compare and analyze the environmental impact assessment results with historical assessment results to obtain comparative analysis results.

[0027] The present invention also provides a device for evaluating the environmental impact of radioactive effluent from a multi-reactor nuclear power plant, comprising:

[0028] Data acquisition module, used to automatically collect external system data;

[0029] Source term analysis module, used to collect and analyze source term data on gaseous and liquid radioactive effluent emissions from each reactor in a multi-reactor nuclear power plant under normal operating conditions;

[0030] Data management module, used to collect and manage parameter data required for evaluation;

[0031] Database module, used to store all input and output data related to the evaluation;

[0032] a diffusion simulation calculation module, configured to perform gaseous and liquid diffusion simulation calculations on each reactor based on the parameter data required for the evaluation, and obtain the spatial and medium distribution of radionuclide concentrations;

[0033] a public dose calculation module, configured to calculate the public dose caused by the discharge of radioactive effluents from each reactor based on the spatial and medium distribution of the radionuclide concentrations and in combination with the public activity data;

[0034] a dose superposition analysis module, configured to perform a dose superposition analysis on the public dose caused by the radioactive effluent discharge of each reactor, and obtain a dose superposition result of the public dose caused by the radioactive effluent discharge under normal operating conditions of a multi-reactor nuclear power plant;

[0035] an environmental impact assessment module, configured to assess the environmental impact of the radioactive effluent discharge from the multi-reactor nuclear power plant based on the dose superposition result, and obtain an environmental impact assessment result;

[0036] The evaluation comparison and analysis module is used to compare and analyze the environmental impact assessment results with historical assessment results to obtain comparative analysis results.

[0037] The present invention also provides a storage medium storing a computer program, wherein the computer program is suitable for loading by a processor to execute the steps of the above-mentioned method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant.

[0038] The present invention also provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the steps of the above-mentioned method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant by calling the computer program stored in the memory.

[0039] The present invention provides a method, device, storage medium, and electronic device for evaluating the environmental impact of radioactive effluents from a multi-reactor nuclear power plant, including the following steps: obtaining parameter data required for evaluation; performing gaseous and liquid diffusion simulation calculations for each reactor based on the parameter data to obtain the spatial and medium distribution of radionuclide concentrations; calculating the public dose caused by radioactive effluent emissions from each reactor based on the spatial and medium distributions and in combination with public activity data; performing dose superposition analysis based on the public doses to obtain dose superposition results; and performing an environmental impact assessment based on the dose superposition results to obtain an environmental impact assessment result. The present invention can implement superposition calculations of public doses caused by radioactive effluent emissions from multiple reactors and an assessment of their environmental impact, automating and informatizing the evaluation process, improving evaluation efficiency and accuracy, and providing strong technical support for environmental supervision and safe operation of multi-reactor nuclear power plants.

[0040] The present invention's environmental impact assessment method for radioactive effluent from multi-reactor nuclear power plants has the following beneficial effects: It utilizes a spatial analysis algorithm that fully accounts for the additive effects of multiple reactors, improving the accuracy of cumulative public dose calculations. It also automates and informs the assessment process, enhancing both efficiency and accuracy, and providing strong technical support for environmental regulation and safe operation of multi-reactor nuclear power plants. Furthermore, the invention supports comparative analysis, providing a scientific basis for environmental management decisions and safeguarding public health and environmental safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0042] Figure 1 It is a schematic flow chart of the environmental impact assessment method of radioactive effluent from a multi-reactor nuclear power plant provided by the present invention;

[0043] Figure 2 is a schematic diagram of dose superposition based on the overlapping area weighting method provided by the present invention;

[0044] Figure 3 This is a flow chart of another embodiment of the method for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant provided by the present invention;

[0045] Figure 4 The present invention is a logic block diagram of a device for evaluating the environmental impact of radioactive effluents from a multi-reactor nuclear power plant. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] In order to solve the problems existing in the existing technology, the present invention provides a method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant, which can accurately and comprehensively evaluate the cumulative impact of public dose caused by the discharge of gaseous and liquid radioactive effluents under normal operating conditions of multiple reactors in a multi-reactor nuclear power plant, and provide a scientific basis for environmental impact assessment of multi-reactor nuclear power plants.

[0048] refer to Figure 1 , Figure 1 The present invention provides a flowchart of a preferred embodiment of the method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant.

[0049] Specifically, such as Figure 1 As shown, the environmental impact assessment method for radioactive effluents from a multi-reactor nuclear power plant includes the following steps:

[0050] Step S101: Obtain parameter data required for evaluation.

[0051] In embodiments of the present invention, the parameter data required for evaluation can be pre-stored in a database. Optionally, in some embodiments, the parameter data required for evaluation may include, but are not limited to, meteorological data, radioactive effluent emission source item data, reactor emission parameters, population data, key resident group data, agricultural output data, lifestyle data, consumption data, water body dispersion data, water area-related data, plant site meteorological parameters, environmental parameters, and radionuclide parameters. Meteorological data and radioactive effluent emission source item data are data from external systems. Meteorological data can be hourly meteorological observation data automatically collected by a data acquisition module. Similarly, radioactive effluent emission data can also be automatically collected by the data acquisition module. Hourly meteorological observation data generally originates from the nuclear power plant's meteorological observation system, and radioactive effluent emission source item data (also referred to as radioactive effluent emission data) generally originates from the nuclear power plant's effluent management system. Radioactive effluent emission source item data can be total emission data for the evaluation period, or data derived from an overlay calculation based on emission data from each time period within the evaluation period.

[0052] Optionally, in an embodiment of the present invention, the reactors in the reactor group are a combination of reactors that share the same gaseous and liquid radioactive effluent discharge outlet, for example, Units 1 and 2 of the XX Nuclear Power Plant (sharing the same chimney and drain outlet).

[0053] Furthermore, in this embodiment of the present invention, there is only one reference reactor in the reactor cluster, and the geographic location-related evaluation data in the parameter data is centered around the reference reactor. The geographic location-related evaluation data includes, but is not limited to, population data, key resident group data, agricultural output data, lifestyle data, consumption data, and water area-related data.

[0054] Step S102: performing gas-liquid diffusion simulation calculations on each reactor based on the parameter data of the reactor group to obtain the spatial and medium distribution of radionuclide concentrations.

[0055] Optionally, the spatial and medium distribution of radionuclide concentration includes: the spatial and medium distribution of airborne radionuclide concentration, and the spatial and medium distribution of liquid radionuclide concentration.

[0056] Specifically, in some embodiments, the diffusion, migration, and deposition processes of each reactor's airborne radioactive effluent in the atmosphere can be simulated and calculated based on the parameter data required for evaluation, thereby obtaining the spatial and medium distribution of airborne radionuclide concentrations. Simultaneously, the diffusion, migration, and deposition processes of each reactor's liquid radioactive effluent in the aquatic environment can be simulated and calculated based on the parameter data required for evaluation, thereby obtaining the spatial and medium distribution of liquid radionuclide concentrations. Ultimately, the spatial and medium distribution of radionuclide concentrations can be obtained. It should be noted that conventional methods can be used for the simulation and calculation of gaseous and liquid diffusion, and the present invention is not particularly limited thereto.

[0057] Step S103: Calculate the public dose caused by the discharge of radioactive effluents from each reactor based on the spatial and medium distribution of radionuclide concentrations and in combination with the public activity data to obtain the public dose.

[0058] Specifically, after obtaining the spatial and medium distribution of radionuclide concentrations, the public dose attributable to the release of reactive effluents from each reactor can be calculated based on the spatial and medium distribution of radionuclide concentrations and in combination with public activities. The calculation of the public dose attributable to the release of reactive effluents from each reactor can be performed using conventional methods, and the present invention does not impose any specific limitations thereon.

[0059] Step S104: performing a dose superposition analysis based on the public dose caused by the radioactive effluent emissions from each reactor, and obtaining a dose superposition result of the public dose caused by the radioactive effluent emissions under normal operating conditions of a multi-reactor nuclear power plant.

[0060] It should be noted that when a nuclear power plant has a single reactor, a dose superposition analysis is not necessary. In the present invention, since a nuclear power plant has multiple reactors, a superposition analysis of the public dose caused by the radioactive effluent emissions from each reactor is required to obtain the superposition results of the public dose caused by the discharge of gaseous and liquid radioactive effluents under normal operating conditions of the multi-reactor nuclear power plant.

[0061] In some embodiments, a dose superposition analysis is performed based on the public doses due to radioactive effluent emissions from each reactor to obtain the dose superposition results of the public doses due to radioactive effluent emissions from multiple reactors under normal operating conditions. This includes: for the general public in each sub-area, a reference coordinate system is constructed with the reference reactor as the center, and a dose superposition analysis is performed within the reference coordinate system on the public doses due to radioactive effluent emissions from each reactor using an area-weighted method to obtain the dose superposition results of the public doses due to radioactive effluent emissions from multiple reactors under normal operating conditions; for key resident groups, the public doses due to radioactive effluent emissions from each reactor are directly superimposed to obtain the dose superposition results of the public doses due to radioactive effluent emissions from multiple reactors under normal operating conditions. It should be noted that the general public refers to the public divided by sub-area, and the key resident groups refer to the public divided by several residential areas (and occupations and ages).

[0062] The method involves constructing a reference coordinate system centered on the reference reactor and performing a dose superposition analysis of the public doses due to radioactive effluent emissions from each reactor within the reference coordinate system using an area-weighted method. The method then includes: constructing the reference coordinate system centered on the reference reactor to form a standard set of subregions; traversing each subregion within the standard set of subregions; traversing each reactor to obtain all superposition dose sub-items; and accumulating all superposition dose sub-items to obtain a dose superposition result. Furthermore, traversing each reactor includes: if the reactor is a reference reactor, directly taking the dose of the subregion of the reference reactor as the superposition dose sub-item; if the reactor is a non-reference reactor, traversing all subregions of the non-reference reactor to obtain the corresponding superposition dose sub-item.

[0063] Specifically, such as Figure 2 As shown, for the general public in each sub-area, a reference coordinate system is constructed with the reference reactor as the center, and the public dose caused by the radioactive effluent emissions of each reactor is superimposed and calculated in the reference coordinate system using the area weighted method. The specific calculation method is as follows:

[0064] Step 1. Construct a reference coordinate system with the reference reactor as the center to form a standard sub-area set;

[0065] Step 2. Traverse each sub-area s in the standard sub-area set;

[0066] Step 3. Traverse each reactor and obtain the superposition dose sub-item of each reactor.

[0067] In this step, for the benchmark reactor, since its subregion division is identical to the standard subregion division, the dose of its corresponding subregion s can be directly taken as the superposition dose sub-item. For non-benchmark reactors, all subregions are traversed to obtain the corresponding superposition dose sub-item. The specific method for traversing all subregions for non-reactor-based reactors is to determine whether the current subregion spatially overlaps with the standard subregion s. If so, the weighted calculation of the overlapping area is calculated to obtain the corresponding superposition dose sub-item. If not, the current subregion is not included in the superposition calculation.

[0068] Step 4. Accumulate all the above superposition dose sub-items to obtain the final superposition dose.

[0069] The specific calculation formula is as follows:

[0070] TotalDose_GP s,c =Dose_GP s,c +∑ i ∑ j dose_GP i,j,c ×weight i,j,s ;

[0071]

[0072] in:

[0073] TotalDose_GP s,c It is the superimposed dose to the general public in sub-area s centered on the reference reactor due to the discharge of radioactive effluents from various reactors. The subscript s is the identification code of the sub-area centered on the reference reactor, and the subscript c is the dose category or exposure pathway.

[0074] Dose_GP s,c The dose to the general public in sub-area s centered on the reference reactor due to the discharge of radioactive effluents from the reference reactor (category c).

[0075] dose_GP i,j,c is the dose to the general public in sub-area j due to the discharge of radioactive effluents from (non-reference) reactor i (category c).

[0076] weight i,j,s The calculated weight for the dose to the general public in sub-region j due to the discharge of radioactive effluent from (non-reference) reactor i is weighted based on the overlapping area (of sub-region s centered on the reference reactor).

[0077] overlapArea i,j,s is the area of ​​the overlap between the subregion j centered at the (non-reference) reactor i and the subregion s centered at the reference reactor.

[0078] area s is the area of ​​sub-region s centered on the reference reactor.

[0079] For key resident groups, the public doses caused by the release of radioactive effluents from each reactor can be directly superimposed. The specific calculation formula is as follows:

[0080] TotalDose_KP k,c =∑dose_KP i,k,c .

[0081] in:

[0082] TotalDose_KP k,c is the cumulative dose to the critical resident group k due to the discharge of radioactive effluents from each reactor, where subscript k is the identification code of the critical resident group and subscript c is the dose category or exposure pathway.

[0083] dose_KP i,k,c is the dose to critical resident group k (category c) due to the discharge of radioactive effluents from reactor i.

[0084] Step S105: Evaluate the environmental impact of radioactive effluent emissions from multiple nuclear power plants based on the dose superposition results to obtain an environmental impact assessment result.

[0085] In some embodiments, the dose superposition results of step S104 can be combined with relevant standards to evaluate the environmental impact of radioactive effluent emissions from nuclear power plants. For example, based on the dose superposition results, the analysis can provide the location and corresponding age group of the maximum individual effective dose in all sub-areas, the ratio of the maximum individual effective dose to the standard limit, and the dose values ​​and contributions of each pathway. The analysis can also provide the key resident groups where the maximum individual effective dose occurs, as well as the nuclides and exposure pathways with the highest contributions and their corresponding dose values ​​and contributions. The analysis can also provide the collective dose of all sub-areas, as well as the dose values ​​and contributions of each pathway.

[0086] The calculation formula for the maximum personal effective dose in all sub-areas as a percentage of the standard limit is as follows:

[0087] proportionMax_GP=TotalDose_GP s,c / DoseLimit

[0088] in:

[0089] proportionMax_GP is the ratio of the maximum personal effective dose in all sub-areas to the limit specified in the standard;

[0090] DoseLimit is the limit specified by the standard.

[0091] Furthermore, in an embodiment of the present invention, Figure 3 As shown, the environmental impact assessment method for radioactive effluents from a multi-reactor nuclear power plant further includes the following steps: Comparing and analyzing the environmental impact assessment results with historical assessment results to obtain comparative analysis results. Specifically, after obtaining the environmental impact assessment results, comparative analysis can be performed as needed. For example, if similar historical assessment results already exist, the current environmental impact assessment results can be compared with the historical ones, and the differences between the two assessments can be analyzed to identify trends and causes of dose changes.

[0092] In order to implement the above-mentioned method for evaluating the environmental impact of radioactive effluents from a multi-reactor nuclear power plant, the present invention provides an environmental impact evaluation device for radioactive effluents from a multi-reactor nuclear power plant.

[0093] Specifically, such as Figure 4 As shown, the multi-reactor nuclear power plant radioactive effluent environmental impact assessment device includes:

[0094] The data acquisition module 401 is used to automatically acquire external system data.

[0095] Specifically, the data acquisition module 401 is used to automatically collect hourly meteorological observation data, radioactive effluent emission data, and other data from external systems. Hourly meteorological observation data generally comes from the nuclear power plant meteorological observation system, and radioactive effluent emission data generally comes from the nuclear power plant effluent management system.

[0096] Source term analysis module 402 is used to collect and analyze source term data on gaseous and liquid radioactive effluent emissions from each reactor in a multi-reactor nuclear power plant under normal operating conditions. Source term analysis module 402 is used to collect and analyze source term data on gaseous and liquid radioactive effluent emissions from each reactor in a multi-reactor nuclear power plant under normal operating conditions, and transmit the data to a database for storage and management.

[0097] The data management module 403 is used to collect and manage parameter data required for evaluation.

[0098] Specifically, the data management module 403 is used to collect and manage the parameters required for evaluation, including meteorological data, radioactive effluent emission source data, reactor emission parameters, population data, key resident group data, agricultural output data, living habits data, consumption data, water body dispersion data, water area related data, plant site meteorological parameters, environmental parameters, radionuclide parameters, etc.

[0099] The database module 404 is used to store all input and output data related to the evaluation.

[0100] The database module 404 communicates with the data acquisition module 401 , the source item analysis module 402 and the data management module 403 respectively, and is used to store and manage the data of the aforementioned modules so that other modules can call and view the data.

[0101] The diffusion simulation calculation module 405 is used to perform gas-liquid diffusion simulation calculations on each reactor based on the evaluation parameter data to obtain the spatial and medium distribution of radionuclide concentrations.

[0102] Optionally, the diffusion simulation module 405 includes an atmospheric diffusion simulation module and a water diffusion simulation module. The atmospheric diffusion simulation module is used to simulate and calculate the diffusion, migration, and deposition of airborne radioactive effluents from each reactor in the environment. The water diffusion simulation module is used to simulate and calculate the diffusion, migration, and deposition of liquid radioactive effluents from each reactor in the water.

[0103] The public dose calculation module 406 is used to calculate the public dose caused by the discharge of radioactive effluents from each reactor based on the spatial and medium distribution of radionuclide concentrations and in combination with public activity data.

[0104] The dose superposition analysis module 407 is used to perform dose superposition analysis based on the public dose caused by the radioactive effluent emissions of each reactor, and obtain the dose superposition results of the public dose caused by the radioactive effluent emissions under normal operating conditions of a multi-reactor nuclear power plant.

[0105] The environmental impact assessment module 408 is used to evaluate the environmental impact of radioactive effluent emissions from multiple nuclear power plants based on the dose superposition results to obtain environmental impact assessment results.

[0106] The evaluation comparison and analysis module 409 is used to compare and analyze the environmental impact evaluation results with the historical evaluation results to obtain a comparative analysis result.

[0107] The present invention's environmental impact assessment method for radioactive effluent from multi-reactor nuclear power plants utilizes a spatial analysis algorithm, fully accounting for the additive effects of multiple reactors and improving the accuracy of cumulative public dose calculations. This automated and informatized assessment process improves efficiency and accuracy, providing strong technical support for environmental regulation and safe operation of multi-reactor nuclear power plants. Furthermore, the present invention supports comparative analysis, providing a scientific basis for environmental management decisions and safeguarding public health and environmental safety.

[0108] Specifically, the specific coordinated operation process between the various units in the multi-reactor nuclear power plant radioactive effluent environmental impact assessment device can refer to the above-mentioned multi-reactor nuclear power plant radioactive effluent environmental impact assessment method, which will not be repeated here.

[0109] In addition, an electronic device of the present invention includes a memory and a processor; the memory is used to store a computer program; the processor is used to execute the computer program to implement a method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant as described in any one of the above. Specifically, according to an embodiment of the present invention, the process described with reference to the flowchart above can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed by an electronic device and, when executed, performs the above functions defined in the method of the embodiment of the present invention. The electronic device in the present invention can be a terminal such as a notebook, desktop, tablet computer, smart phone, or a server.

[0110] In addition, the present invention provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the above-mentioned methods for assessing the environmental impact of radioactive effluents from a multi-reactor nuclear power plant. Specifically, it should be noted that the storage medium of the present invention may be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. Computer-readable storage media may be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or components, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device, or component. In the present invention, a computer-readable signal medium may include a data signal transmitted in baseband or as part of a carrier wave, which carries computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device. Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wires, optical cables, RF (radio frequency), or any suitable combination thereof.

[0111] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0112] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0113] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0114] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0115] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. All equivalent variations and modifications within the scope of the claims of the present invention are intended to be covered by the claims of the present invention.

Claims

1. A method for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant, characterized in that: The following steps are involved: Obtain parameter data required for evaluation; Performing gaseous and liquid diffusion simulation calculations on each reactor based on the parameter data required for the evaluation to obtain the spatial and medium distribution of radionuclide concentrations; Calculate the public dose due to radioactive effluent emissions from each reactor based on the spatial and medium distribution of the radionuclide concentrations and in combination with public activity data; Performing a dose superposition analysis on the public doses caused by the radioactive effluent emissions from each reactor to obtain a dose superposition result of the public doses caused by the radioactive effluent emissions from a multi-reactor nuclear power plant under normal operating conditions; The environmental impact of the radioactive effluent discharge from the multi-reactor nuclear power plant is evaluated based on the dose superposition result to obtain an environmental impact assessment result.

2. The method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant according to claim 1, characterized in that: The reactors in the reactor group are a combination of reactors that share the same gaseous and liquid radioactive effluent discharge port.

3. The method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant according to claim 1, characterized in that: There is one and only one reference reactor in the reactor group, and the evaluation data related to the geographical location in the parameter data is centered on the reference reactor.

4. The method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant according to claim 3, characterized in that: The dose superposition analysis is performed based on the public dose caused by the radioactive effluent discharge of each reactor to obtain the dose superposition result of the public dose caused by the radioactive effluent discharge under normal operating conditions of the multi-reactor nuclear power plant, including: For the general public in each sub-area, a reference coordinate system is constructed with the reference reactor as the center, and a dose superposition analysis of the public dose caused by the radioactive effluent emissions of each reactor is performed in the reference coordinate system according to the area weighted method to obtain the dose superposition results of the public dose caused by the radioactive effluent emissions under normal operating conditions of a multi-reactor nuclear power plant; For the key resident group, the public dose caused by the radioactive effluent emissions of each reactor is directly superimposed to obtain the dose superposition results of the public dose caused by radioactive effluent emissions under normal operating conditions of multi-reactor nuclear power plants.

5. The method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant according to claim 4, characterized in that: The reference coordinate system is constructed with the reference reactor as the center, and a dose superposition analysis is performed on the public dose caused by the radioactive effluent discharge of each reactor according to the area weighted method in the reference coordinate system to obtain the dose superposition result of the public dose caused by the radioactive effluent discharge under normal operating conditions of the multi-reactor nuclear power plant, including: Constructing a reference coordinate system with the reference reactor as the center to form a standard sub-area set; Traversing each sub-area in the standard sub-area set; Traverse each reactor and obtain all superimposed dose sub-items; All the above-mentioned superimposed dose sub-items are accumulated to obtain the dose superposition result.

6. The method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant according to claim 5, characterized in that: The traversal of each reactor includes: If the reactor is a reference reactor, the dose of the sub-area of ​​the reference reactor is directly taken as the superposition dose sub-item; If the reactor is a non-reference reactor, all sub-areas of the non-reference reactor are traversed to obtain corresponding superposition dose sub-items.

7. The method for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant according to any one of claims 1 to 6, characterized in that: The method further comprises: Compare and analyze the environmental impact assessment results with historical assessment results to obtain comparative analysis results.

8. A device for environmental impact assessment of radioactive effluent from a multi-reactor nuclear power plant, characterized in that: include: Data acquisition module, used to automatically collect external system data; Source term analysis module, used to collect and analyze source term data on gaseous and liquid radioactive effluent emissions from each reactor in a multi-reactor nuclear power plant under normal operating conditions; Data management module, used to collect and manage parameter data required for evaluation; Database module, used to store all input and output data related to the evaluation; a diffusion simulation calculation module, configured to perform gaseous and liquid diffusion simulation calculations on each reactor based on the parameter data required for the evaluation, and obtain the spatial and medium distribution of radionuclide concentrations; a public dose calculation module, configured to calculate the public dose caused by the discharge of radioactive effluents from each reactor based on the spatial and medium distribution of the radionuclide concentrations and in combination with the public activity data; a dose superposition analysis module, configured to perform a dose superposition analysis on the public dose caused by the radioactive effluent discharge of each reactor, and obtain a dose superposition result of the public dose caused by the radioactive effluent discharge under normal operating conditions of a multi-reactor nuclear power plant; an environmental impact assessment module, configured to assess the environmental impact of the radioactive effluent discharge from the multi-reactor nuclear power plant based on the dose superposition result, and obtain an environmental impact assessment result; The evaluation comparison and analysis module is used to compare and analyze the environmental impact assessment results with historical assessment results to obtain comparative analysis results.

9. A storage medium, characterized in that: The storage medium stores a computer program, which is suitable for being loaded by a processor to execute the steps of the method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant as described in any one of claims 1 to 7.

10. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and the processor executes the steps of the method for environmental impact assessment of radioactive effluents from a multi-reactor nuclear power plant as claimed in any one of claims 1 to 7 by calling the computer program stored in the memory.

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