Nuclear island plant comprehensive arrangement planning method and device, nuclear island plant and nuclear power equipment

Abstract

The invention discloses a nuclear island plant comprehensive arrangement planning method and device, a nuclear island plant and nuclear power equipment, and relates to the technical field of nuclear industry. The nuclear island plant comprehensive arrangement planning method comprises the steps of obtaining an arrangement design criterion, overall parameters, system requirements, a primary version arrangement diagram and experience feedback of a target research and development nuclear power model; and carrying out overall planning on target facilities of the nuclear island according to the overall parameters, system requirements and experience feedback by taking the layout design criterion as guidance and the primary layout diagram as a basis to obtain a first target layout diagram which is used for representing the comprehensive layout planning of the nuclear island plant. According to the embodiment of the invention, the method can improve the coordination of each target facility in the first target layout diagram.

Description

Technical Field

[0001] The present application belongs to the field of nuclear industry technology, and specifically relates to a method and device for comprehensive layout planning of a nuclear island plant, a nuclear island plant and nuclear power equipment. Background Art

[0002] The current nuclear power technology is relatively mature. The existing technology mainly carries out the layout planning of the nuclear island plant through the following methods: first determine the items to be arranged in the nuclear island plant and the layout requirements of each item, and then divide the nuclear island plant into multiple sub-plants according to the layout requirements of each item; then determine the relative position of each sub-plant building according to the interface relationship between each sub-plant building.

[0003] However, in the above method, the layout planning of nuclear island plant is mainly based on the items to be arranged in the nuclear island plant, the layout requirements of each item and the interface relationship between each sub-plant, focusing on the layout of local items, ignoring the comprehensive planning and global perspective of the overall nuclear island plant, resulting in poor coordination of various facilities in the planning layout results. Therefore, a reasonable and complete nuclear island plant comprehensive layout planning method is urgently needed to improve or solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present application is to provide a method and device for comprehensive layout planning of a nuclear island plant, a nuclear island plant and nuclear power equipment in response to the above-mentioned deficiencies in the prior art. The planning method is to arrange the nuclear island plant according to the comprehensive planning. The use of this method can improve the coordination of various target facilities in the first target layout diagram.

[0005] In a first aspect, an embodiment of the present application provides a method for comprehensive layout planning of a nuclear island plant, including:

[0006] Obtain the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model;

[0007] Guided by the layout design criteria and based on the preliminary layout drawing, the target facilities of the nuclear island are generally planned according to the overall parameters, system requirements and experience feedback, and the first target layout drawing is obtained. The first target layout drawing is used to represent the comprehensive layout plan of the nuclear island plant.

[0008] In some embodiments of the first aspect, the target facility includes a main process pipeline, a cable master tray, a penetration, a ventilation duct, a passage, and a common area pipeline; the first target layout diagram includes first pipeline travel path information, a first target position of the cable master tray, first cable passage position information, first penetration position information, first ventilation duct position information, first passage position information, and first common area pipeline position information;

[0009] Guided by the layout design criteria and based on the preliminary layout drawing, the target facilities of the nuclear island are generally planned according to the overall parameters, system requirements and experience feedback, and the first target layout drawing is obtained, including:

[0010] Analyze the layout characteristics and obtain the system equipment location and user location based on the overall parameters, system requirements and experience feedback;

[0011] Based on the initial layout diagram, the main process pipelines are planned according to the system equipment locations and user locations, and the first pipeline route information is obtained;

[0012] According to the first pipeline travel path information, the cable main tray is planned to obtain the first target position and the first cable channel position information;

[0013] Planning the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information;

[0014] Planning the ventilation duct according to the first target position, the first cable channel position information and the first penetration position information to obtain the first ventilation duct position information;

[0015] According to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information, the channel is planned to obtain the first channel position information;

[0016] According to the layout design criteria, the public area pipelines of the nuclear island are spatially divided to obtain the position information of the first public area pipelines.

[0017] In some embodiments of the first aspect, the main process pipeline includes a nuclear steam supply system pipeline, a passive safety system pipeline, an active safety system pipeline, an auxiliary system pipeline, and a common system pipeline;

[0018] Based on the initial layout, the main process pipelines are planned according to the system equipment locations and user locations, and the first pipeline route information is obtained, including:

[0019] Based on the first principle, the main process pipelines are planned according to the system equipment location and user location to obtain a preliminary pipeline route. The first principle includes at least one of the human factor principle and the protection principle.

[0020] Under the condition that the system requirements are met, based on the second principle and the first layout priority ranking of the main process pipelines, the preliminary pipeline travel path is adjusted to obtain the first pipeline travel path information, and the second principle includes at least one of the radiation principle, the internal and external disaster principle, the maintainability principle, the protection principle, the isolation principle, the accessibility principle, the space utilization principle and the economy principle;

[0021] The first arrangement priority ranking includes:

[0022] The priorities are in descending order: nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines.

[0023] In some embodiments of the first aspect, the cable master tray includes safety-rated cables and non-safety-rated cables;

[0024] According to the first pipeline travel path information, the cable main tray is planned to obtain the first target position and the first cable channel position information, including:

[0025] According to the first pipeline travel path information and the second arrangement priority ranking of the cable master tray, the cable master tray is planned to obtain the first target position and the first cable channel position information;

[0026] The second arrangement priority ranking includes:

[0027] Safety-rated cables take precedence over non-safety-rated cables.

[0028] In some embodiments of the first aspect, the penetrations include process penetrations, pipe penetrations, electrical penetrations, and ventilation penetrations;

[0029] According to the first target position and the first cable channel position information, the penetration is planned to obtain the first penetration position information, including:

[0030] According to the first target position, the first cable channel position information and the third arrangement priority ranking of the penetrations, the penetrations are planned to obtain the first penetration position information;

[0031] The third arrangement priority ranking includes:

[0032] Process penetrations have the highest priority, and pipe penetrations, electrical penetrations, and ventilation penetrations have the same priority.

[0033] In some embodiments of the first aspect, the ventilation duct includes a passive ventilation duct, a safety-grade ventilation system duct, and a non-safety-grade ventilation system duct;

[0034] According to the first target position, the first cable channel position information and the first penetration position information, the ventilation duct is planned to obtain the first ventilation duct position information, including:

[0035] According to the first target position, the first cable channel position information, the first penetration position information and the fourth arrangement priority of the ventilation duct, the ventilation duct is planned to obtain the first ventilation duct position information;

[0036] Among them, the fourth arrangement priority ranking includes:

[0037] In descending order of priority, passive ventilation ducts, safety-level ventilation system ducts, and non-safety-level ventilation system ducts.

[0038] In some embodiments of the first aspect, the passage includes a personnel passage and an equipment transportation passage;

[0039] According to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information, the channel is planned to obtain the first channel position information, including:

[0040] According to the first pipeline running path information, the first cable channel position information, the first penetration position information, the first ventilation duct position information, and the fifth arrangement priority ranking of the channel, the channel is planned to obtain the first channel position information;

[0041] Among them, the fifth arrangement priority ranking includes:

[0042] The priority of equipment transportation channels is higher than that of personnel passage channels.

[0043] In some implementations of the first aspect, according to the layout design criteria, the common area pipelines of the nuclear island are spatially divided to obtain the first common area pipeline position information, including:

[0044] Modeling the target pipeline using three-dimensional modeling software to obtain a modeling result, wherein the three-dimensional modeling software includes at least one of REVIT software, PDMS software and E3D software;

[0045] According to the pipeline-dense areas in the modeling results, the common area pipelines of the nuclear island are spatially divided based on the layout design criteria to obtain the location information of the first common area pipelines.

[0046] In some implementations of the first aspect, after the target pipeline is modeled using three-dimensional modeling software and a modeling result is obtained, the method further includes:

[0047] When there is a target area in the modeling results, determine the system pipelines and their required space dimensions in the target area. The target area is the area where the system pipelines cannot reasonably pass through.

[0048] According to each system pipeline and its required space size, based on the necessity of arranging the system pipeline in the target area, the correlation and adjustability of the system pipeline with other system items, the system pipeline path is adjusted to obtain the adjusted system pipeline path, which can realize the reasonable passage of each system pipeline.

[0049] In some embodiments of the first aspect, after adjusting the system pipeline path, the method further includes:

[0050] In the absence of an adjusted system piping path, a second target layout diagram is determined based on the in-shell analysis, the out-of-shell analysis and the comprehensive layout analysis; the second target layout diagram is used to represent the comprehensive layout plan of the nuclear island plant.

[0051] In some implementations of the first aspect, obtaining a layout design criterion for a target nuclear power plant model under development includes:

[0052] Obtain the overall R&D objectives of the target nuclear power plant model, which include at least one of the following: advancement objectives, economic objectives, and safety objectives;

[0053] Determine the layout design criteria for the target nuclear power plant model based on the overall R&D objectives;

[0054] Among them, the layout design criteria include at least one of overall requirements, system and equipment layout requirements, installation requirements, and commissioning, operation and maintenance requirements.

[0055] In some implementations of the first aspect, guided by the layout design criteria and based on the preliminary layout drawing, a general plan is made for the target facilities of the nuclear island according to the overall parameters, system requirements and experience feedback, and after obtaining the first target layout drawing, the method further comprises:

[0056] Perform functional verification on important systems, including passive safety systems.

[0057] Based on the same inventive concept, in a second aspect, the embodiment of the present application further provides a nuclear island plant comprehensive layout planning device, comprising:

[0058] The acquisition module is used to obtain the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model under development;

[0059] The planning module is connected to the acquisition module and is used to make an overall plan for the target facilities of the nuclear island based on the layout design criteria and the preliminary layout drawing, according to the overall parameters, system requirements and experience feedback, and obtain the first target layout drawing. The first target layout drawing is used to represent the comprehensive layout plan of the nuclear island plant.

[0060] In some embodiments of the second aspect, the target facility includes a main process pipeline, a cable master tray, a penetration, a ventilation duct, a passage, and a common area pipeline; the first target layout diagram includes first pipeline travel path information, a first target position of the cable master tray, first cable passage position information, first penetration position information, first ventilation duct position information, first passage position information, and first common area pipeline position information;

[0061] Planning module, including:

[0062] The analysis submodule is used to analyze the layout characteristics and obtain the system equipment location and user location based on the overall parameters, system requirements and experience feedback;

[0063] The first planning submodule is connected to the analysis submodule and is used to plan the main process pipelines based on the initial layout diagram according to the system equipment locations and user locations to obtain the first pipeline travel path information;

[0064] The second planning submodule is connected to the first planning submodule and is used to plan the cable main tray according to the first pipeline travel path information to obtain the first target position and the first cable channel position information;

[0065] A third planning submodule, connected to the second planning submodule, is used to plan the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information;

[0066] The fourth planning submodule is connected to the third planning submodule, and plans the ventilation duct according to the first target position, the first cable channel position information and the first penetration position information to obtain the first ventilation duct position information;

[0067] The fifth planning submodule is connected to the fourth planning submodule, and plans the channel according to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information to obtain the first channel position information;

[0068] The division submodule is used to spatially divide the common area pipelines of the nuclear island according to the layout design criteria to obtain the first common area pipeline position information.

[0069] In some embodiments of the second aspect, the main process pipeline includes a nuclear steam supply system pipeline, a passive safety system pipeline, an active safety system pipeline, an auxiliary system pipeline, and a common system pipeline;

[0070] The first planning submodule is specifically used for:

[0071] Based on the first principle, the main process pipelines are planned according to the system equipment location and user location to obtain a preliminary pipeline route. The first principle includes at least one of the human factor principle and the protection principle.

[0072] Under the condition that the system requirements are met, based on the second principle and the first layout priority ranking of the main process pipelines, the preliminary pipeline travel path is adjusted to obtain the first pipeline travel path information, and the second principle includes at least one of the radiation principle, the internal and external disaster principle, the maintainability principle, the protection principle, the isolation principle, the accessibility principle, the space utilization principle and the economy principle;

[0073] The first arrangement priority ranking includes:

[0074] The priorities are in descending order: nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines.

[0075] In some embodiments of the second aspect, the cable master tray includes safety-rated cables and non-safety-rated cables;

[0076] The second planning submodule is specifically used for:

[0077] According to the first pipeline travel path information and the second arrangement priority ranking of the cable master tray, the cable master tray is planned to obtain the first target position and the first cable channel position information;

[0078] The second arrangement priority ranking includes:

[0079] Safety-rated cables take precedence over non-safety-rated cables.

[0080] Based on the same inventive concept, in the third aspect, an embodiment of the present application also provides a nuclear island plant, wherein the nuclear auxiliary buildings of the nuclear island plant are arranged according to a first target layout diagram, and the first target layout diagram is obtained according to the comprehensive layout planning method of the nuclear island plant according to any one of the first aspects.

[0081] In some embodiments of the third aspect, the nuclear island building includes a main building and a nuclear auxiliary building;

[0082] Among them, the nuclear auxiliary plant includes ventilation ducts, three-layer non-safety-grade cable trays, cold water system pipes, fire water system pipes, chilled water system pipes, compressed air system pipes and nuclear island equipment;

[0083] In the first direction, the three-layer non-safety-grade cable tray is arranged between the ventilation duct and the compressed air system pipe, the fire water system pipe is arranged between the cold water system pipe and the chilled water system pipe, and the nuclear island equipment is arranged on the side of the compressed air system pipe away from the three-layer non-safety-grade cable tray.

[0084] In some implementations of the third aspect, the pipes of the chilled water system and the pipes of the fire water system are supported on the wall in the form of a common frame.

[0085] Based on the same inventive concept, in a fourth aspect, an embodiment of the present application also provides a nuclear power equipment, including a nuclear island plant of any one of the third aspects.

[0086] The comprehensive layout planning method and device of the nuclear island plant, the nuclear island plant and the nuclear power equipment provided in the embodiments of the present application can be used for the forward design and development of the nuclear island plant. The overall planning of the target facilities of the nuclear island is carried out based on the layout design criteria and the preliminary layout drawing, according to the overall parameters, system requirements and experience feedback. The layout design criteria, the preliminary layout drawing, the overall parameters, the system requirements and experience feedback are fully considered, which can not only improve the coordination of the various target facilities in the first target layout drawing, but also help the first target layout drawing meet comprehensive requirements and standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] Figure 1 A schematic diagram showing a flow chart of a method for comprehensive layout planning of nuclear island plants provided in an embodiment of the present application;

[0088] Figure 2 A schematic diagram showing the comprehensive layout of the main steam-water pipeline provided in an embodiment of the present application;

[0089] Figure 3 Another schematic diagram showing the comprehensive layout of the main steam-water pipeline provided in the embodiment of the present application;

[0090] Figure 4 A schematic diagram showing a public area pipeline planning concept provided by an embodiment of the present application;

[0091] Figure 5 A schematic diagram showing a comprehensive layout planning idea of ​​a nuclear island plant provided in an embodiment of the present application;

[0092] Figure 6 A schematic diagram showing a structure of a nuclear island plant comprehensive layout planning device provided in an embodiment of the present application;

[0093] Figure 7 A structural schematic diagram of a nuclear island plant provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0094] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0095] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0096] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0097] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0098] The following is a description of the prior art that may be involved in the embodiments of the present application.

[0099] Although current nuclear power technology is relatively mature, no one in the world has yet proposed a complete method for the comprehensive layout planning of nuclear island plants.

[0100] In previous projects, some areas of the nuclear island had problems such as poor accessibility, low space utilization, and unreasonable radiation zoning. These were all caused by inadequate comprehensive layout planning. A reasonable and complete comprehensive layout planning method was not adopted during the nuclear island design and development process, which ultimately increased the difficulty and subversion risk of later layout work, thereby greatly reducing the economic efficiency of the nuclear power plant.

[0101] Example 1

[0102] The nuclear island plant comprehensive layout planning method provided in the embodiment of the present application can be executed by a nuclear island plant comprehensive layout planning device and electronic equipment, etc. The following takes the nuclear island plant comprehensive layout planning method executed by electronic equipment as an example for explanation.

[0103] like Figure 1 As shown, the comprehensive layout planning method of nuclear island buildings provided in the embodiment of the present application may include step S110 and step S120.

[0104] S110. Obtain the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model to be developed.

[0105] S120. Guided by the layout design criteria and based on the preliminary layout drawing, the target facilities of the nuclear island are generally planned according to the overall parameters, system requirements and experience feedback to obtain the first target layout drawing. The first target layout drawing is used to represent the comprehensive layout plan of the nuclear island plant.

[0106] The comprehensive layout planning method for nuclear island plants provided in the embodiment of the present application can be used for the forward design and development of nuclear island plants. It is guided by the layout design criteria and based on the preliminary layout drawing. According to the overall parameters, system requirements and experience feedback, the overall planning of the target facilities of the nuclear island is carried out. The layout design criteria, the preliminary layout drawing, the overall parameters, the system requirements and experience feedback are fully considered. It can not only improve the coordination of the various target facilities in the first target layout drawing, but also help the first target layout drawing meet comprehensive requirements and standards.

[0107] In addition, the comprehensive layout planning method of the nuclear island plant provided in the embodiment of the present application can achieve the overall design requirements of the target nuclear power model to be developed, and meet the implementation of the functions of each system, can improve or solve the problems that arise in the solution stage, can ensure the rationality and feasibility of the solution, and effectively reduce the probability of collision of various system items during the later layout design. In addition, the comprehensive layout planning method of the nuclear island plant provided in the embodiment of the present application has improved the professional design level, and the research results can provide important experience and guidance for the future development of new models, further, can improve work efficiency, and have a high degree of feasibility.

[0108] The specific implementation of the above steps is introduced below.

[0109] In step S110 , the target nuclear power plant model under development may be any nuclear power plant model under development.

[0110] Exemplarily, the layout design criteria include at least one of overall requirements, system and equipment layout requirements, installation requirements, and commissioning, operation and maintenance requirements. For example, the layout design criteria may include overall requirements. For another example, the layout design criteria may include overall requirements and system and equipment layout requirements. For another example, the layout design criteria may include overall requirements, system and equipment layout requirements, and installation requirements. For another example, the layout design criteria may include overall requirements, system and equipment layout requirements, installation requirements, and commissioning, operation and maintenance requirements.

[0111] Among them, the overall requirements include radiation protection design, nuclear island plant fire protection design, nuclear island flooding protection, missile protection, pipeline rupture effect protection, noise protection, personnel path, overall layout, disaster protection, human factors and economy; system and equipment layout requirements include main system, process equipment pipeline, fuel operation system, ventilation equipment pipeline, electrical instrumentation equipment, cable tray, main system layout principles, process equipment, electrical instrumentation equipment, containment penetration equipment, etc.; installation requirements include equipment installation path, ring crane, nuclear island crane, elevator layout, crane elevator layout principles and positioning blocks, etc.; commissioning, operation and maintenance requirements include personnel access / protection facilities, operation functional areas, in-service inspections, physical protection, temporary storage areas for equipment, space requirements, transportation requirements and personnel accessibility requirements, etc.; the formulation of guidelines needs to be combined with relevant laws and regulations, guidelines, standards and the group's internal layout principles, past experience, user needs, etc. For example, the overall requirements can refer to documents such as the Nuclear Safety Law of the People's Republic of China and the Nuclear Power Plant Design Safety Regulations (HAF102); the system and equipment layout requirements can refer to documents such as the Nuclear Power Plant Design Safety Regulations (HAF102), the Nuclear Power Plant Fire Protection Design Code (GB / T22158-2021) and the HAD102 / 11-2019 Nuclear Power Plant Fire and Explosion Protection Design; the installation requirements can refer to the Regulations on the Supervision and Management of the Design, Manufacturing, Installation and Non-destructive Testing of Civilian Nuclear Safety Equipment (HAF601) and the Nuclear Power Plant Quality Assurance Safety Regulations (HAF0400); the commissioning, operation and maintenance requirements can refer to the Nuclear Power Plant Design Safety Regulations (HAF102), the Nuclear Power Plant Operation Safety Regulations, and the Nuclear Power Plant Quality Assurance Safety Regulations (HAF0400).

[0112] For example, the overall parameters may include power generation requirements, safety requirements, economic requirements, and advancement requirements of the power plant, etc. For example, the power generation requirements of the power plant may include the design capacity of the nuclear power plant being 1200MW, etc.; the safety requirements may include the configuration of a dual cooling system and an emergency power supply, etc.; the economic requirements may include the use of a high temperature gas-cooled reactor, etc.; and the advancement requirements may include the use of fast neutron reactor technology, etc.

[0113] For example, the system requirements may include the top-level design of each system, such as whether the main circuit adopts three circuits or four circuits, whether the safety system is active or passive, etc.

[0114] For example, experience feedback may include problems in previous projects such as poor accessibility, low space utilization, and unreasonable radiation zoning in some areas of the nuclear island.

[0115] For example, the preliminary layout drawing may include a drawing completed by the designer in the early stage according to the room requirements of each profession and can be used to guide the layout.

[0116] In some embodiments, obtaining the layout design criteria of the target nuclear power plant model to be developed may include:

[0117] Obtain the overall R&D objectives of the target nuclear power plant model, which include at least one of the following: advancement objectives, economic objectives, and safety objectives;

[0118] Determine the layout design criteria for the target nuclear power plant model based on the overall R&D objectives;

[0119] Among them, the layout design criteria include at least one of overall requirements, system and equipment layout requirements, installation requirements, and commissioning, operation and maintenance requirements.

[0120] Exemplarily, the advancement goal may include which system configuration solution to adopt. For example, the advancement goal may include adopting a fast neutron reactor.

[0121] For example, the economic goal may include adopting a compact and economical nuclear island plant design concept, such as adopting a compact nuclear island design.

[0122] For example, the safety goal may include a design requirement for resisting a crash of a large commercial aircraft, such as using a reinforced containment structure.

[0123] Here, we can first consider the overall R&D goals of the target nuclear power plant model, and then determine the top-level design requirements and concepts of the reactor type with comprehensive layout. In order to ensure the practical implementation of the top-level design concept of the reactor type and the practical implementation of the safety concept, it is necessary to formulate the layout design criteria of the target nuclear power plant model to guide the design throughout the design cycle.

[0124] Exemplarily, the overall R&D objectives of the target nuclear power plant model to be developed may be pre-stored in the electronic device so as to subsequently determine the layout design criteria of the target nuclear power plant model to be developed.

[0125] For example, the electronic device may pre-store the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model to be developed, so that they can be directly called later.

[0126] In step S120, after obtaining the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model under development, the electronic equipment can also use the layout design criteria as a guide and the preliminary layout drawings as a basis to make an overall plan for the target facilities of the nuclear island according to the overall parameters, system requirements and experience feedback to obtain a first target layout drawing, which is used to characterize the comprehensive layout plan of the nuclear island plant.

[0127] Target facilities may include major process lines, cable master trays, penetrations, ventilation ducts, access roads, and common area lines.

[0128] Among them, the main process pipelines include nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines; the cable main tray includes safety-grade cables and non-safety-grade cables; the penetrations include process penetrations, pipeline penetrations, electrical penetrations and ventilation penetrations; the ventilation ducts include passive ventilation ducts, safety-grade ventilation system ducts and non-safety-grade ventilation system ducts; the passages include personnel passages and equipment transportation passages.

[0129] The first target layout diagram may include first pipeline travel path information, a first target position of a cable main tray, first cable channel position information, first penetration position information, first ventilation duct position information, first channel position information, and first common area pipeline position information.

[0130] Among them, the first pipeline travel path information may include the target layout position of the planned main process pipeline, and the travel path information; the first target position may include the target layout position of the planned cable main tray; the first cable channel position information may include the target layout position of the planned cable laying facilities; the first penetration position information may include the target layout position of the planned penetration; the first ventilation duct position information may include the target layout position of the planned ventilation duct; the first public area pipeline position information may include the target layout position of the planned public area pipeline.

[0131] In some embodiments, the target facility includes a main process pipeline, a cable main tray, penetrations, ventilation ducts, passages, and common area pipelines; the first target layout diagram includes first pipeline travel path information, a first target position of the cable main tray, first cable passage position information, first penetration position information, first ventilation duct position information, first passage position information, and first common area pipeline position information;

[0132] Guided by the layout design criteria and based on the preliminary layout drawing, the target facilities of the nuclear island are generally planned according to the overall parameters, system requirements and experience feedback, and the first target layout drawing is obtained, including:

[0133] Analyze the layout characteristics and obtain the system equipment location and user location based on the overall parameters, system requirements and experience feedback;

[0134] Based on the initial layout diagram, the main process pipelines are planned according to the system equipment locations and user locations, and the first pipeline route information is obtained;

[0135] According to the first pipeline travel path information, the cable main tray is planned to obtain the first target position and the first cable channel position information;

[0136] Planning the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information;

[0137] Planning the ventilation duct according to the first target position, the first cable channel position information and the first penetration position information to obtain the first ventilation duct position information;

[0138] According to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information, the channel is planned to obtain the first channel position information;

[0139] According to the layout design criteria, the public area pipelines of the nuclear island are spatially divided to obtain the position information of the first public area pipelines.

[0140] For example, taking the passive containment heat removal system as an example, according to the overall parameters, system requirements and experience feedback, the layout characteristics of the passive containment heat removal system are analyzed, which mainly include: a. The layout of the items in the shell of the passive containment heat removal system (i.e., system equipment) should correspond to the steam generators of the three loops, and the heat exchangers (i.e., system equipment) should be arranged evenly along the circumferential direction of the containment as much as possible; b. The layout of the items outside the shell of the passive containment heat removal system (i.e., system equipment) should be arranged as close to the three series of items in the shell as possible, and evenly arranged along the circumferential direction of the containment to facilitate the smooth realization of the system function; c. According to the hydraulic calculation requirements of the passive containment heat removal system, the hot section pipeline (i.e., system equipment) needs to have a height difference of no less than 6m with the bottom of the passive containment heat removal system pool, with as few elbows as possible and as short pipelines as possible; d. The pipe diameter of the passive containment heat removal system (i.e., system equipment) is large, and there are 8 large-sized valves at each series of main pipes, which requires sufficient space for personnel operation and maintenance (i.e., user position).

[0141] In some examples, the main process piping includes nuclear steam supply system piping, passive safety system piping, active safety system piping, auxiliary system piping, and common system piping;

[0142] Based on the preliminary layout, the main process pipelines are planned according to the system equipment locations and user locations to obtain the first pipeline route information, which may include:

[0143] Based on the first principle, the main process pipelines are planned according to the system equipment location and user location to obtain a preliminary pipeline route. The first principle includes at least one of the human factor principle and the protection principle.

[0144] Under the condition that the system requirements are met, based on the second principle and the first layout priority ranking of the main process pipelines, the preliminary pipeline travel path is adjusted to obtain the first pipeline travel path information, and the second principle includes at least one of the radiation principle, the internal and external disaster principle, the maintainability principle, the protection principle, the isolation principle, the accessibility principle, the space utilization principle and the economy principle;

[0145] The first arrangement priority ranking includes:

[0146] The priorities are in descending order: nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines.

[0147] Exemplarily, the human factors principle may include optimizing the allocation of human-machine functions and rationalizing the human-machine interface based on the safety and operability of the nuclear power plant to give full play to the comprehensive effectiveness of humans and machines.

[0148] For example, the protection principles may include the legitimacy of practice, optimization of protection, dose limit, source safety, optimization of intervention, and legal framework and responsibilities within the legal framework. Specifically, the legitimacy of practice may be that the social and economic benefits generated by the practice must far outweigh the radiation hazards it may cause to personnel; optimization of protection may be taking measures to minimize unnecessary exposure while ensuring that the exposure to individuals and society remains at an acceptable level; dose limit may be setting a maximum limit on radiation dose to ensure that the radiation dose to individuals does not exceed the safety standard; source safety may be ensuring the safe storage, transportation and use of radioactive sources to prevent accidental radiation; optimization of intervention may be taking intervention measures when necessary to reduce radiation risks while maximizing economic and social benefits; the legal framework and responsibilities within the legal framework may be clarifying legal responsibilities and obligations to ensure that the radiation protection measures of nuclear power plants comply with the requirements of laws and regulations.

[0149] Exemplarily, for each preliminary pipeline, other locations in the nuclear power plant except for the system equipment location and the user location are used as the initial setting location of the preliminary pipeline, and then the initial setting location that meets the first type of principle is screened out from the initial setting location as the intermediate setting location of the preliminary pipeline, and then the preliminary pipeline travel path is determined according to all the intermediate setting locations of all the preliminary pipelines. Assuming that for any preliminary pipeline, its initial setting location includes location A, location B and location C, setting the preliminary pipeline at location A does not meet the human factor principle, setting the preliminary pipeline at location B does not meet the human factor principle and the protection principle, and setting the preliminary pipeline at location C meets the human factor principle and the protection principle, then location C is used as the intermediate setting location of the preliminary pipeline.

[0150] For example, the radiation principle may include that the layout of nuclear safety-related buildings should meet the requirements of the nuclear power plant functions, while minimizing the transportation distance and walking distance of workers to ensure the safe operation of the nuclear power plant and the effectiveness of radiation protection; the internal and external disaster principle may include that buildings and structures should be separated according to their safety functions to ensure that the function of the structure is to minimize the effects of external extreme accidents on safety-related items and to ensure that they can withstand the effects of design basis accidents and beyond design basis accidents; the maintainability principle may include that the power unit can operate normally when an accident occurs in an adjacent power unit, which requires that the layout of the building should be convenient for the maintenance and overhaul of equipment to ensure that necessary maintenance work can be carried out quickly in an emergency; the protection principle may include that the design of the nuclear power plant must be stable and safe, and each system and equipment must not fail. The principle of isolation can be implemented through the basic safety principle of defense in depth, including multi-level defense, multiple barriers and single fault criteria, so as to ensure that in the event of an accident, multiple lines of defense can be used to prevent the expansion of the accident and mitigate the consequences of the accident, so as to protect the safety of personnel, the public and the environment in the plant area; the principle of accessibility can be included in the layout of nuclear power plants, and the layout of equipment and systems should be ensured to facilitate maintenance and overhaul; the principle of space utilization can include reasonable planning of plant layout so as to maximize the installation of equipment and systems within a limited space, while taking into account future expansion needs; the principle of economy can include minimizing construction and operating costs while ensuring safe and reliable operation.

[0151] As an example, the second type of principle may include the radiation principle.

[0152] As another example, the second category of principles may include the internal and external disaster principle, the maintainability principle, and the protection principle.

[0153] As another example, the second category of principles includes radiation principle, internal and external disaster principle, maintainability principle, protection principle, isolation principle, accessibility principle, space utilization principle and economy principle.

[0154] Exemplarily, the preliminary pipeline travel path includes the one-to-one corresponding intermediate layout positions of the nuclear steam supply system pipeline, the passive safety system pipeline, the active safety system pipeline, the auxiliary system pipeline and the common system pipeline; the first pipeline travel path information includes the one-to-one corresponding target layout positions of the nuclear steam supply system pipeline, the passive safety system pipeline, the active safety system pipeline, the auxiliary system pipeline and the common system pipeline; when the system requirements are met, the intermediate layout position of the nuclear steam supply system pipeline is adjusted first according to the first layout priority of the main process pipelines, and when the adjusted intermediate layout position of the nuclear steam supply system pipeline meets the second principle, the layout position of the adjusted nuclear steam supply system pipeline is adjusted. The target layout position of the nuclear steam supply system pipeline is taken as the target layout position of the nuclear steam supply system pipeline. When the adjusted intermediate layout position of the nuclear steam supply system pipeline does not meet the second principle, the intermediate layout position of the nuclear steam supply system pipeline is further adjusted. The intermediate layout position of the passive safety system pipeline is then adjusted. When the adjusted intermediate layout position of the passive safety system pipeline meets the second principle, the layout position of the passive safety system pipeline after the adjustment is taken as the target layout position of the passive safety system pipeline. When the adjusted intermediate layout position of the passive safety system pipeline does not meet the second principle, the intermediate layout position of the passive safety system pipeline is further adjusted, and so on, until the target layout position of the public system pipeline is determined.

[0155] That is to say, by analyzing the layout characteristics and considering the human factors and protection principles according to the system equipment location and user location, the length of the main process pipelines is minimized and the passage paths of the main process pipelines are preliminarily planned. The main cold water pipelines will be arranged in the corridors of each plant to meet the passage of large-sized pipelines. On the premise of meeting the system layout requirements, the principles of radiation, internal and external disasters, maintainability, protection, isolation, accessibility, space utilization, and economy are considered to achieve centralized layout of high-level pipelines and minimize their length. In addition, the layout space of potential other pipelines is considered during planning, and the civil engineering plan is adjusted and refined on this basis.

[0156] It should be noted that the first layout priority ranking can be determined according to the importance of each system, the difficulty of pipeline layout design, and the layout space occupied.

[0157] In some examples, the cable master tray includes safety-rated cables and non-safety-rated cables;

[0158] According to the first pipeline travel path information, the cable main tray is planned to obtain the first target position and the first cable channel position information, including:

[0159] According to the first pipeline travel path information and the second arrangement priority ranking of the cable master tray, the cable master tray is planned to obtain the first target position and the first cable channel position information;

[0160] The second arrangement priority ranking includes:

[0161] Safety-rated cables take precedence over non-safety-rated cables.

[0162] Exemplarily, the first cable channel location information includes the layout positions of the cable laying facilities corresponding to the target layout positions of the safety-grade cables and the target layout positions of the non-safety-grade cables, respectively; the power point location is determined according to the first pipeline travel path information, and the safety-grade cables are first planned based on the power point location, and the non-safety-grade cables are planned based on the power point location to obtain the first target location, and then planning is performed based on the first target location to obtain the first cable channel location information.

[0163] That is to say, after the planning of process system items (i.e. main process pipelines) is completed, the location of power points is also determined, and the cable channel can be planned based on this. For example, the nuclear steam supply system includes steam generator pipelines, main steam pipelines and condensate pipelines. The power points of the nuclear steam supply system include steam pumps, solenoid valves, pressure sensors and temperature sensors. For steam generator pipelines, the power supply of the steam pump is arranged in the electrical control room close to the steam generator to ensure stable power supply and convenient operation. The power supply of the temperature sensor should be arranged in the control room or operating platform, close to the steam generator for easy monitoring and maintenance, while avoiding high temperature areas; for the main steam pipeline, the power supply of the flow meter and pressure sensor on the main steam pipeline is arranged in the monitoring room next to the main steam pipeline, which can reduce the cable length and ensure the convenience of monitoring and data collection; for the condensate pipeline, the power supply of the condensate pump should be arranged in the electrical room near the condensate pipeline to reduce the cable length and power loss, and the power supply of the gas monitoring sensor should be arranged in the safety control room for the operator to monitor the condensate.

[0164] In some examples, the penetrations include process penetrations, plumbing penetrations, electrical penetrations, and ventilation penetrations;

[0165] According to the first target position and the first cable channel position information, the penetration is planned to obtain the first penetration position information, including:

[0166] According to the first target position, the first cable channel position information and the third arrangement priority ranking of the penetrations, the penetrations are planned to obtain the first penetration position information;

[0167] The third arrangement priority ranking includes:

[0168] Process penetrations have the highest priority, and pipe penetrations, electrical penetrations, and ventilation penetrations have the same priority.

[0169] Exemplarily, the first penetration position information includes target layout positions of process penetrations, pipeline penetrations, electrical penetrations and ventilation penetrations in one-to-one correspondence. The process penetrations are first planned according to the first target position and the first cable channel position information to obtain the target layout position of the process penetrations, which is located at the intersection or adjacent area of ​​at least two of the first target position, the target layout position of the safety-grade cable and the layout position of the non-safety machine cable. Then, the pipeline penetrations, electrical penetrations and ventilation penetrations are planned according to the first target position and the first cable channel position information to obtain target layout positions of pipeline penetrations, electrical penetrations and ventilation penetrations in one-to-one correspondence. The target layout positions of pipeline penetrations, electrical penetrations and ventilation penetrations in one-to-one correspondence are respectively located at the intersection or adjacent area of ​​at least two of the first target position, the target layout position of the safety-grade cable and the layout position of the non-safety machine cable.

[0170] In some examples, the ventilation ducts include passive ventilation ducts, safety-rated ventilation system ducts, and non-safety-rated ventilation system ducts;

[0171] According to the first target position, the first cable channel position information and the first penetration position information, the ventilation duct is planned to obtain the first ventilation duct position information, including:

[0172] According to the first target position, the first cable channel position information, the first penetration position information and the fourth arrangement priority of the ventilation duct, the ventilation duct is planned to obtain the first ventilation duct position information;

[0173] Among them, the fourth arrangement priority ranking includes:

[0174] In descending order of priority, passive ventilation ducts, safety-level ventilation system ducts, and non-safety-level ventilation system ducts.

[0175] Exemplarily, the first ventilation duct position information may include target layout positions of passive ventilation ducts, safety-level ventilation system ducts and non-safety-level ventilation system ducts corresponding to each other. According to the first target position, the first cable channel position information and the first penetration position information, the passive ventilation duct is first planned to obtain the target layout position of the passive ventilation duct, and the target layout position of the passive ventilation duct is far away from the first cable channel position information and the first target position, and is close to the layout position of the penetration; then, according to the first target position, the first cable channel position information and the first penetration position information, the safety-level ventilation system duct is planned to obtain the target layout position of the safety-level ventilation system duct, and the target layout position of the safety-level ventilation system duct is far away from the first cable channel position information and the first target position, and is close to the layout position of the penetration; then, according to the first target position, the first cable channel position information and the first penetration position information, the non-safety-level ventilation system duct is planned to obtain the target layout position of the non-safety-level ventilation system duct, and the target layout position of the non-safety-level ventilation system duct is far away from the first cable channel position information and the first target position, and is close to the layout position of the penetration.

[0176] In other words, after the planning of electrical instruments and cable channels is completed, the heat generation of each area is basically determined, and the ventilation ducts can be planned based on this.

[0177] In some examples, the passage includes a personnel passage and an equipment transport passage;

[0178] According to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information, the channel is planned to obtain the first channel position information, including:

[0179] According to the first pipeline running path information, the first cable channel position information, the first penetration position information, the first ventilation duct position information, and the fifth arrangement priority ranking of the channel, the channel is planned to obtain the first channel position information;

[0180] Among them, the fifth arrangement priority ranking includes:

[0181] The priority of equipment transportation channels is higher than that of personnel passage channels.

[0182] Exemplarily, the first channel position information includes the target layout position of the equipment transportation channel and the target layout position of the personnel passage. According to the first pipeline travel path information, the first cable channel position information, the first penetration position information, and the first ventilation duct position information, the equipment transportation channel is first planned to obtain the target layout position of the equipment transportation channel, wherein the target layout position of the equipment transportation channel is away from the first cable channel position information, and does not intersect with the first pipeline travel path information, the first ventilation duct position information, and the first penetration position information; then according to the first pipeline travel path information, the first cable channel position information, the first penetration position information, and the first ventilation duct position information, the personnel passage is first planned to obtain the target layout position of the personnel passage, wherein the target layout position of the personnel passage is away from the first cable channel position information, and does not intersect with the first pipeline travel path information and the first penetration position information, and the first ventilation duct position information is avoided to be directly arranged above the personnel passage.

[0183] In some examples, according to the layout design criteria, the common area pipelines of the nuclear island are spatially divided to obtain the first common area pipeline position information, including:

[0184] Modeling the target pipeline using three-dimensional modeling software to obtain a modeling result, wherein the three-dimensional modeling software includes at least one of REVIT software, PDMS software and E3D software;

[0185] According to the pipeline-dense areas in the modeling results, the common area pipelines of the nuclear island are spatially divided based on the layout design criteria to obtain the location information of the first common area pipelines.

[0186] For example, the target pipeline may include a large-sized pipeline, which may be a pipeline having a diameter exceeding 4 inches.

[0187] In other words, use 3D modeling software to complete the modeling of large-size pipelines, and for areas with dense multi-system pipelines, use layout design criteria as a guide to complete the spatial allocation of public area items and meet the requirements of layout design criteria.

[0188] Specifically, according to the modeling method of the software, the system flow chart is used as the design input, and pipeline modeling is carried out based on the system equipment location and user location, as well as the layout of the nuclear power plant and the planning of the channels.

[0189] In this example, by modeling items with the help of 3D modeling software such as PDMS, the layout and space conditions of this area can be more vividly analyzed. At the same time, the software can be used to measure whether the distance between items can meet the requirements of personnel passage and equipment transportation.

[0190] In some examples, after the target pipeline is modeled using three-dimensional modeling software and the modeling result is obtained, the method may further include:

[0191] When there is a target area in the modeling results, determine the system pipelines and their required space dimensions in the target area. The target area is the area where the system pipelines cannot reasonably pass through.

[0192] According to each system pipeline and its required space size, based on the necessity of arranging the system pipeline in the target area, the correlation and adjustability of the system pipeline with other system items, the system pipeline path is adjusted to obtain the adjusted system pipeline path, which can realize the reasonable passage of each system pipeline.

[0193] For example, when the pipeline cannot be laid out, there is no way for the pipeline to go, there is insufficient space for pipeline layout, or the pipeline can be laid out but violates layout principles such as personnel accessibility, it is determined that the reasonable passage of the pipelines of each system cannot be achieved.

[0194] Specifically, when there is a target area in the modeling results, it is necessary to conduct a detailed analysis of each system pipeline in the target area and adjust the original plan, as follows: 1. Sort out all pipeline items in the target area and the required space dimensions to obtain the sorting results; 2. Analyze the necessity of arranging each pipeline in this area, the correlation and adjustability with other system items, and obtain the analysis results; 3. Based on the sorting results and analysis results, determine the problem, grasp the key points of the problem, and try to adjust the pipeline path of a certain system; 4. Analyze whether the pipeline adjustment can solve the problem of insufficient layout space in this area, and whether new problems will arise; 5. The above process adopts iteration, deduction, and scheme comparison, while weighing the pros and cons. Among them, a one-to-one correspondence between multiple preset problems and multiple preset key points can be set in the electronic device in advance according to experience, and then the preset key points corresponding to the problem can be used as the key points of the problem. Exemplarily, the above process can be implemented by Ivy Power Plant Design Management Software (PDMS) and the like.

[0195] For example, during the initial pipeline planning, in addition to the main coolant circulation pipeline (WCC) mother pipe, the south channel of the auxiliary plant also planned the fuel replenishment system (FNP), the forward water process pipeline (FWD) and other process pipelines as well as cable trays and air ducts. After comprehensive sorting, it was found that this corridor could not meet the requirements of personnel passage and equipment transportation. According to the functional characteristics and dimensions of each system pipeline in this corridor (that is, sorting all pipeline items in the target area and the required space dimensions to obtain the sorting results), the A column pipeline of the WCC was adjusted to the east-west channel connected to the fuel plant in the middle of the auxiliary plant. However, since the passage on the north side of the fuel plant is arranged with DEC cable trays, ventilation ducts of the plant, and process pipelines such as the main coolant outlet (WCE), forward drive (FWD), and cooling water network (WNC), the size of the corridor here cannot meet the spatial layout requirements of all pipelines. Through analysis, the WCC pipeline size is large and the main pipe needs to be divided into two rows of branches through a tee, which are used to cool the reactor transport system (RFT) and the reactor heat exchanger (RHI) heat exchanger, respectively. Therefore, four branches need to be arranged (that is, the necessity of arranging each pipeline in this area, the correlation and adjustability with other system items are analyzed to obtain the analysis results). According to the current spatial size of the passage, it can be clearly determined through iterative design that the arrangement of the WCC pipeline in the passage is neither reasonable nor feasible. Therefore, according to the current structural layout of this area, the WCC pipeline arranged in the middle corridor of the auxiliary plant will turn to the pit process room on the south side at the junction of the auxiliary plant and the fuel plant, and then go directly west from the pit process room to the residual pump room, and finally reach the user process room (that is, grasp the key point of the problem and try to adjust the pipeline path of a certain system). This solution grasps the key point of the problem - the WCC pipeline. By adjusting the layout of the WCC pipeline, it effectively alleviates the pipeline layout pressure of the north channel of the fuel plant, meets the layout requirements of all systems in this area, and finally realizes the reasonable planning of the pipeline.

[0196] In some examples, after adjusting the system pipeline path, the method may further include:

[0197] In the absence of an adjusted system piping path, a second target layout diagram is determined based on the in-shell analysis, the out-of-shell analysis and the comprehensive layout analysis; the second target layout diagram is used to characterize the comprehensive layout planning of the nuclear island plant.

[0198] Exemplarily, the shell-in-shell analysis may include: obtaining multiple layout schemes of system pipelines in different directions in the shell, determining an initial target layout scheme from the multiple layout schemes, and the initial target layout scheme satisfies the third type of principle, and the third type of principle includes at least one of the economic principle and the space utilization principle. The electronic device may pre-store multiple layout schemes of system pipelines in different directions in the shell, and may also obtain multiple layout schemes of system pipelines in different directions in the shell in response to the user's operation based on the layout scheme input of the electronic device. At least one layout scheme may be included in the same direction.

[0199] Exemplarily, the out-of-shell analysis may include: determining the layout space height corresponding to the system pipeline based on the preliminary pipeline travel path, the first cable channel location information and experience feedback.

[0200] Exemplarily, the comprehensive layout analysis may include: based on the initial target layout plan and the layout space height, adjusting the layout height of the reactor building to achieve the final target layout plan and ensure that the system pipelines meet the target layout height.

[0201] Exemplarily, the second target layout diagram includes a final target layout scheme and system pipelines that meet the target layout height.

[0202] For example, take the main steam and water pipeline comprehensive layout, that is, the system pipeline is the main steam and water pipeline as an example. Figure 2 and Figure 3 As shown, based on the analysis inside the shell, the analysis outside the shell and the comprehensive layout analysis, the second target layout diagram is determined as follows:

[0203] 1. In-shell analysis

[0204] There are two options for the horizontal layout of the main steam-water pipeline: 1. The main steam-water pipeline is surrounded in the annular area inside the shell to the shell exit angle, and connected to the turbine plant through the electrical plant; 2. The main steam-water pipeline exits the shell at its own angle and bypasses the surrounding plant. This option will cause the main steam-water pipeline to bypass the control area (fuel plant and auxiliary plant) to the supervision area (electrical plant), which is not conducive to the radiation zoning design of the nuclear island plant. In addition, the bypass of the main steam-water pipeline outside the shell will also significantly increase the length of the main steam-water pipeline, and affect the overall layout of the various plants outside the shell, increasing the difficulty of arranging the plants outside the shell. Taking all factors into consideration, the solution of bypassing the main steam-water pipeline in the annular area inside the shell is conducive to improving the overall space utilization and economy.

[0205] Furthermore, if the main steam-water pipeline is arranged above the operating platform, the pipeline support needs to be rooted on the operating platform or the secondary shielding wall, which will occupy a large amount of space in the annular area of ​​the operating platform; and if it is arranged above the operating platform, it will inevitably cause collision problems with the arrangement of the equipment gates that are difficult to coordinate, so the main steam-water pipeline should be arranged below the operating platform. There are two schemes for the vertical arrangement of the main steam-water pipeline, namely, staggered arrangement on the same floor and layered arrangement. According to the design plan of Hualong One, the main steam-water pipeline requires a net height of 8m. Since the height difference between the reactor operating platform and the bottom annular area is 19m, the total available height of the annular area below the main feedwater pipeline is only 11m. Considering the layout requirements of the annular area items, the above space can only be set up with two complete layout layers, which cannot meet the space requirements of all items. Based on the above analysis, the main steam and main steam-water pipelines adopt the planning scheme of staggered arrangement on the same floor to increase the clearance of the annular area below the main feedwater pipeline.

[0206] 2. Extra-shell analysis

[0207] In order to facilitate the layout of safety-level electrical and instrumentation items (i.e., the preliminary pipeline route) and the planning of the main cable channel (i.e., the location information of the first cable channel), the single-series safety-level batteries, DC panels, and reactor protection system cabinets in the four protection sequences should be arranged in the same position and in consecutive upper and lower layers. According to the design of previous projects (i.e., experience feedback), the layout space requirement for the above three types of items in the height direction is at least 13.5m. Therefore, the planning of the electrical and instrumentation equipment process room in the electrical plant is from ±0.00m to +13.50m. In addition, considering the requirements of physical protection, the thickness of the structural floor under the main water supply pipeline of the electrical plant needs to be set to 1m.

[0208] 3. Comprehensive layout analysis

[0209] When the vertical support floor of the steam generator in the shell is at an elevation of ±0.00m, the lower limit elevation of the main steam-water pipeline is the top plate of the electrical room outside the shell at +13.50m, and the upper limit elevation is the bottom plate of the operating platform at +19.00m. Therefore, the layout height of the main steam-water pipeline layer is only 5.5m. This span also includes a floor slab inside the shell (0.7m thick), a floor slab outside the shell (1m thick) and a maintenance steel platform inside the shell. The remaining net layout height is 3.8m, which cannot meet the layout requirements.

[0210] In order to ensure the same-floor layout space requirements for the main steam-water pipelines, the overall layout plan of moving the reactor building upward is adopted to expand the layout space of the main steam-water pipeline layer. However, the upward movement will also cause a height difference between the floor slab inside the shell and the floor slab outside the shell. When the above height difference is too large, not only will the difficulty of arranging the penetration parts increase, but also the difficulty of arranging the isolation valves and pipelines inside and outside the shell will increase accordingly. Taking the above factors into consideration, the reactor building is raised by 1m relative to the surrounding buildings to realize the layout design of the main steam-water pipelines and various system items inside and outside the shell. The above is a classic case of adjusting the overall layout plan during the comprehensive pipeline layout planning process. After repeated iterative analysis, the feasibility of the pipeline layout is ensured, and the feasibility of the overall layout plan is guaranteed.

[0211] It should be noted that the second target layout diagram may be the adjusted first target layout diagram.

[0212] Exemplarily, the layout design criteria include following the first principle of above the air duct, in the cable, and below the process in the cross-sectional height direction; in the horizontal direction, the second principle of arranging the pipelines close to the users, with fewer intersections, reducing brackets, and considering the use of common racks; and the third principle of reserving personnel passages and equipment transportation passages. For the pipeline-dense areas in the modeling results, the public area pipelines of the nuclear island are spatially divided according to the first principle, the second principle, and the third principle to obtain the first public area pipeline location information. The first public area pipeline location information can complete the spatial allocation of public area items and meet the requirements of the layout design criteria.

[0213] Figure 4 A schematic diagram of the public area pipeline planning concept provided by the embodiment of the present application is shown. For example, Figure 4 As shown in the figure, taking a corridor of a nuclear island plant as an example, according to the previous pipeline planning, this area is arranged with cold water system pipelines, chilled water system pipelines, nuclear island fire water system pipelines, compressed air system pipelines, three-layer non-safety-grade cable trays and ventilation ducts. According to the channel size, the size of each pipeline and the number of tray layers (i.e. the situation of each item), potential items such as brackets, doors, insulation and support positions are considered. In the direction of the cross-sectional height (i.e. the division of cross-sectional height), the principle of above the air duct, in the cable, and below the process is followed. In the horizontal direction, the pipelines are arranged close to the users, with fewer intersections, fewer brackets, and the use of a common rack is considered. The layout space of each item is reasonably allocated, and the needs of personnel passage and equipment transportation are reserved to ensure accessibility and maintainability. The above-mentioned public area pipeline planning makes reasonable use of space, avoids confusion in pipeline layout, and verifies that the scheme is feasible, laying a good foundation for the next step of work.

[0214] In some embodiments, after the target facilities of the nuclear island are generally planned based on the layout design criteria and the preliminary layout drawing according to the overall parameters, system requirements and experience feedback and the first target layout drawing is obtained, the method may further include:

[0215] Perform functional verification on important systems, including passive safety systems.

[0216] For example, the passive safety system relies on the natural circulation of gravity temperature. After the pipeline is arranged, hydraulic calculations need to be performed to verify the feasibility of its function.

[0217] In order to better understand the comprehensive layout planning method for nuclear power plants provided in the embodiments of the present application, a specific embodiment is described below.

[0218] The comprehensive layout planning of the nuclear island is a key link in the forward design of a nuclear power plant and an important part of the scheme design stage. It is based on the initial formation of the overall layout plan of the nuclear island plant, combined with the experience feedback of previous reactor projects, to plan the pipeline paths, personnel and equipment channels of the main systems of the nuclear island, to achieve the system functions, avoid conflicts and interferences between various professional items, meet the needs of radiation protection, equipment transportation, maintenance operation, protection, etc., through iterative design, further adjust and refine the overall layout plan, avoid the occurrence of design risks, and lay the foundation for the next design stage.

[0219] Before carrying out relevant designs, the overall R&D goals of the nuclear power plant to be developed should be considered first, and then the top-level design requirements and concepts of the comprehensive layout should be determined. Among them, the advanced goal: what system configuration scheme to adopt; the economic goal: adopting the compact and economical nuclear island plant design concept; the safety goal: the design requirements for resisting the impact of large commercial aircraft.

[0220] In order to ensure the practical implementation of the top-level design concept of the reactor type and the safety concept, it is necessary to formulate layout design criteria for the nuclear power model to be developed, and these criteria can guide the design throughout the entire design cycle.

[0221] Among them, the overall requirements include radiation protection design, nuclear island plant fire protection design, nuclear island flooding protection, missile protection, pipeline rupture effect protection, noise protection, personnel paths, etc.; system and equipment layout requirements include main system, process equipment pipelines, fuel operation system, ventilation equipment pipelines, electrical instrumentation and control equipment and cable trays, etc.; installation requirements include equipment installation paths, ring cranes, nuclear island cranes, elevator layout, etc.; commissioning, operation and maintenance requirements include personnel access / protection facilities, operation functional areas, in-service inspections, physical protection, temporary storage areas for equipment, etc.; the formulation of guidelines needs to be combined with relevant laws and regulations, guidelines, standards, as well as the group's internal layout principles, past experience, user needs, etc.

[0222] To develop the comprehensive layout of nuclear power plants, the above-mentioned criteria (i.e., comprehensive layout planning criteria) should be used as a guide, combined with overall parameters, system requirements, and experience feedback. Based on the preliminary layout drawing, the main process pipelines of the nuclear island, main cable trays, large ventilation ducts (i.e., ventilation ducts), main penetrations, and passages should be planned and a general policy should be formulated.

[0223] Among them, the overall parameters are similar to the overall goals, including power generation requirements, safety requirements, economic requirements, and advancement requirements of the power plant. System requirements refer to the top-level design of each system, such as: the main circuit uses three or four circuits; the safety system is active or passive, etc. Experience feedback, such as: in previous projects, some areas of the nuclear island have problems such as poor accessibility, low space utilization, and unreasonable radiation zoning. The initial layout drawing was completed by the designers in the early stage according to the room requirements of various disciplines.

[0224] like Figure 5 As shown in the figure, based on the initial version of the nuclear island overall layout plan in the scheme design stage, according to the reactor type concept and top-level requirements as well as the layout requirements and characteristics of each system, the main process pipelines, cable main trays, main air duct paths, main penetrations, channels, etc. of the key main systems of the nuclear island are generally planned, and a general layout policy is formulated to avoid confusion in the layout of pipelines in various systems.

[0225] The main process pipelines of a general nuclear island include: nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines, and public system pipelines. The main cable tray includes: safety-grade cables and non-safety-grade cables. The ventilation ducts include: passive ventilation ducts, safety-grade ventilation system pipelines, and non-safety-grade ventilation system pipelines. The penetrations include: pipeline penetrations, electrical penetrations, ventilation penetrations, and process penetrations, with process penetrations having the highest priority. The passages include: personnel passages and equipment transportation passages.

[0226] At the same time, functional verification of important systems is carried out. Use 3D software modeling (i.e. 3D modeling digital means) to allocate space for items in public areas (i.e. public area pipeline planning). For areas with insufficient space (i.e. collision interference, etc.), adjust the pipeline's route or plant layout plan (i.e. adjust the pipeline planning path) to avoid conflicts between disciplines, meet the needs of all parties (i.e. reasonable and feasible), and solve solution problems. Conduct professional and economic evaluations at each stage to avoid disruptive risks. Finally, improve and solidify the overall layout plan (i.e. refine and iterate, determine the layout and floor height of items in local areas, and obtain the plant layout plan). Use 3D modeling software to complete the modeling of large-size pipelines. For areas with dense pipelines of multiple systems, use the layout design criteria as a guide to complete the spatial allocation of public area items and meet the requirements of the layout design criteria.

[0227] Important systems may include passive safety systems, which rely on natural circulation of gravity and temperature. After the pipeline layout is completed, hydraulic calculations need to be performed to verify the feasibility of its functions. This is a professional assessment of the process system.

[0228] To plan the layout of process pipelines, we first need to have an in-depth understanding of the functions and layout requirements of each system, analyze the layout characteristics, and obtain the location of system equipment and users.

[0229] Furthermore, according to the location of system equipment and users, the pipeline route is preliminarily planned based on the existing preliminary layout plan of the plant.

[0230] That is, by analyzing the layout characteristics and according to the location of equipment and users, and integrating the principles of human factors and protection, the pipeline length is minimized and the pipeline route is preliminarily planned. The main cold water pipelines are arranged in the corridors of each plant to meet the passage of large-sized pipelines.

[0231] On the premise of meeting the system layout requirements, the principles of radiation, internal and external disasters, maintainability, protection, isolation, accessibility, space utilization, economy, etc. are taken into consideration to achieve centralized layout of high-level pipelines and minimize their length. In addition, the layout space of potential other pipelines is taken into consideration during planning, and the civil engineering plan is adjusted and refined based on this.

[0232] After preliminarily planning the pipeline's route and obtaining the preliminary pipeline route, based on the principles of radiation, internal and external disasters, maintainability, protection, isolation, accessibility, space utilization, economy, etc., the requirements of centralized layout of high-level pipelines, reducing length and considering the layout space of other pipelines, as well as the priority of process pipeline layout planning, the preliminary pipeline route is adjusted and refined to obtain the final pipeline route.

[0233] After the planning of process system items is completed, the location of the power consumption point is determined, and the cable channel can be planned based on this.

[0234] Based on the final pipeline travel path and the priority of the cable tray layout planning, the cable master tray and the cable channel are planned in turn to obtain the final position of the cable master tray and the final cable channel.

[0235] According to the final position of the cable main tray, the final cable channel, and the priority of the penetration arrangement planning, the penetrations are planned to obtain the final penetrations.

[0236] After the planning of electrical instruments and cable channels is completed, the heat generation of each area is basically determined, and ventilation can be planned based on this.

[0237] According to the final position of the cable main tray, the final cable channel, and the priority of the ventilation duct layout planning, the ventilation duct is planned to obtain the final ventilation duct.

[0238] After the planning of the above professional pipelines and channels is completed, it is necessary to divide the space of the pipelines in the public area according to the layout design guidelines to avoid chaotic layout and mutual interference.

[0239] The priority of process pipeline layout planning is determined according to the importance of each system, the difficulty of pipeline layout design, and the layout space occupied. In the comprehensive layout planning, the priority of process pipeline layout planning is: nuclear steam supply system pipeline > passive safety system pipeline > active safety system pipeline > auxiliary system pipeline > public system pipeline.

[0240] The priority of cable tray layout planning is: safety-grade cables > non-safety-grade cables.

[0241] The priority of ventilation duct layout planning is: passive ventilation ducts > safety-level ventilation system ducts > non-safety-level ventilation system ducts.

[0242] For some areas where it is impossible to reasonably arrange pipelines, first adjust the route of the pipelines. If this problem cannot be solved, adjust the layout of the plant. The specific adjustment process is as follows:

[0243] 1. Sort out all pipeline items in this area and their required space dimensions.

[0244] 2. Analyze the necessity of arranging each pipeline in this area, its correlation with other system items, and its adjustability.

[0245] 3. Grasp the key points of the problem and try to adjust the pipeline path of a system.

[0246] 4. Analyze whether the pipeline adjustment can solve the problem of insufficient layout space in this area and whether new problems will arise.

[0247] 5. The above process uses iteration, deduction, and scheme comparison, while weighing the pros and cons.

[0248] When the above two comprehensive procedures cannot achieve a reasonable and feasible layout plan, it is necessary to reversely adjust the layout plan of the factory building, iterate the design, and ensure the feasibility of the overall layout plan. Finally, lay a solid foundation for the next step of work.

[0249] The above process undergoes multiple rounds of iterative design and carries out various professional evaluations at the same time, and on this basis, improves and refines the overall layout plan of the nuclear island to avoid disruptive risks, improve the rational use of space, and reduce the investment cost of bulk materials.

[0250] The embodiments of the present application have at least the following beneficial effects:

[0251] 1. The overall design requirements of the machine model are realized, the implementation of the functions of each system is met, the pipeline layout requirements of each system are realized, and the problem of insufficient space caused by the close pipelines in local areas is avoided.

[0252] 2. The requirements of personnel accessibility are met, and efficient and economical transportation methods for main equipment are planned.

[0253] 3. It meets the isolation requirements and radiation protection requirements of pipelines, and can realize the centralized layout of high-level radioactive pipelines, avoiding the cross layout of high-level radioactive, low-level radioactive and non-radiation pipelines, which is beneficial to the operation and radiation safety of the staff.

[0254] 4. It realizes the rational use of space, reduces the probability of collision between system items in the future and the difficulty of subsequent pipeline layout design.

[0255] 5. The comprehensive layout planning method of the nuclear island plant disclosed in the embodiment of the present application can be used for the forward design and development of the nuclear island plant, can solve the problems that arise in the solution stage, and can reversely adjust and refine the overall layout plan, which can ensure the rationality and feasibility of the plan and effectively reduce the risk of later layout design. At the same time, it can improve the space utilization rate of the nuclear island plant, thereby reducing the investment cost of bulk materials.

[0256] 6. The embodiments of the present application have sorted out the main ideas and logic of the comprehensive layout planning, summarized the corresponding methods and theories, and improved the professional design level. The research results can provide important experience and guidance for the future development of new models. Further, it can improve work efficiency and has a higher feasibility.

[0257] Based on the same inventive concept, an embodiment of the present application also provides a nuclear island plant comprehensive layout planning device. The nuclear island plant comprehensive layout planning device provided by the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0258] Example 2

[0259] like Figure 6 As shown, the nuclear island plant comprehensive layout planning device provided in the embodiment of the present application may include an acquisition module 610 and a planning module 620.

[0260] Among them, the acquisition module 610 is used to obtain the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model to be developed.

[0261] The planning module 620 is connected to the acquisition module 610, and is used to make an overall plan for the target facilities of the nuclear island based on the layout design criteria and the preliminary layout drawing, according to the overall parameters, system requirements and experience feedback, and obtain a first target layout drawing. The first target layout drawing is used to characterize the comprehensive layout plan of the nuclear island plant.

[0262] In some embodiments, the target facility includes a main process pipeline, a cable main tray, penetrations, ventilation ducts, passages, and common area pipelines; the first target layout diagram includes first pipeline travel path information, a first target position of the cable main tray, first cable passage position information, first penetration position information, first ventilation duct position information, first passage position information, and first common area pipeline position information;

[0263] The planning module 620 includes:

[0264] The analysis submodule is used to analyze the layout characteristics and obtain the system equipment location and user location based on the overall parameters, system requirements and experience feedback;

[0265] The first planning submodule is connected to the analysis submodule and is used to plan the main process pipelines based on the initial layout diagram according to the system equipment locations and user locations to obtain the first pipeline travel path information;

[0266] The second planning submodule is connected to the first planning submodule and is used to plan the cable main tray according to the first pipeline travel path information to obtain the first target position and the first cable channel position information;

[0267] A third planning submodule, connected to the second planning submodule, is used to plan the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information;

[0268] The fourth planning submodule is connected to the third planning submodule, and plans the ventilation duct according to the first target position, the first cable channel position information and the first penetration position information to obtain the first ventilation duct position information;

[0269] The fifth planning submodule is connected to the fourth planning submodule, and plans the channel according to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information to obtain the first channel position information;

[0270] The division submodule is used to spatially divide the common area pipelines of the nuclear island according to the layout design criteria to obtain the first common area pipeline position information.

[0271] In some embodiments, the main process piping includes nuclear steam supply system piping, passive safety system piping, active safety system piping, auxiliary system piping, and common system piping;

[0272] The first planning submodule is specifically used for:

[0273] Based on the first principle, the main process pipelines are planned according to the system equipment location and user location to obtain a preliminary pipeline route. The first principle includes at least one of the human factor principle and the protection principle.

[0274] Under the condition that the system requirements are met, based on the second principle and the first layout priority ranking of the main process pipelines, the preliminary pipeline travel path is adjusted to obtain the first pipeline travel path information, and the second principle includes at least one of the radiation principle, the internal and external disaster principle, the maintainability principle, the protection principle, the isolation principle, the accessibility principle, the space utilization principle and the economy principle;

[0275] The first arrangement priority ranking includes:

[0276] The priorities are in descending order: nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines.

[0277] In some embodiments, the cable master tray includes safety-rated cables and non-safety-rated cables;

[0278] The second planning submodule is specifically used for:

[0279] According to the first pipeline travel path information and the second arrangement priority ranking of the cable master tray, the cable master tray is planned to obtain the first target position and the first cable channel position information;

[0280] The second arrangement priority ranking includes:

[0281] Safety-rated cables take precedence over non-safety-rated cables.

[0282] In some embodiments, the penetrations include process penetrations, plumbing penetrations, electrical penetrations, and ventilation penetrations;

[0283] The third planning submodule is specifically used for:

[0284] According to the first target position, the first cable channel position information and the third arrangement priority ranking of the penetrations, the penetrations are planned to obtain the first penetration position information;

[0285] The third arrangement priority ranking includes:

[0286] Process penetrations have the highest priority, and pipe penetrations, electrical penetrations, and ventilation penetrations have the same priority.

[0287] In some embodiments, the ventilation ducts include passive ventilation ducts, safety-grade ventilation system ducts, and non-safety-grade ventilation system ducts;

[0288] The fourth planning submodule is specifically used for:

[0289] According to the first target position, the first cable channel position information, the first penetration position information and the fourth arrangement priority of the ventilation duct, the ventilation duct is planned to obtain the first ventilation duct position information;

[0290] Among them, the fourth arrangement priority ranking includes:

[0291] In descending order of priority, passive ventilation ducts, safety-level ventilation system ducts, and non-safety-level ventilation system ducts.

[0292] In some embodiments, the passage includes a personnel passage and an equipment transportation passage;

[0293] The fifth planning submodule is specifically used for:

[0294] According to the first pipeline running path information, the first cable channel position information, the first penetration position information, the first ventilation duct position information, and the fifth arrangement priority ranking of the channel, the channel is planned to obtain the first channel position information;

[0295] Among them, the fifth arrangement priority ranking includes:

[0296] The priority of equipment transportation channels is higher than that of personnel passage channels.

[0297] In some implementations, the submodules are divided to specifically:

[0298] Modeling the target pipeline using three-dimensional modeling software to obtain a modeling result, wherein the three-dimensional modeling software includes at least one of REVIT software, PDMS software and E3D software;

[0299] According to the pipeline-dense areas in the modeling results, the common area pipelines of the nuclear island are spatially divided based on the layout design criteria to obtain the location information of the first common area pipelines.

[0300] In some embodiments, the device further comprises:

[0301] The first determination module is used to determine the system pipelines and their required space dimensions in the target area when there is a target area in the modeling results. The target area is an area where the system pipelines cannot reasonably pass through.

[0302] The adjustment module is used to adjust the system pipeline path according to the necessity of arranging the system pipeline in the target area, the correlation and adjustability between the system pipeline and other system items for each system pipeline and its required space size, so as to obtain the adjusted system pipeline path. The adjusted system pipeline path can realize the reasonable passage of each system pipeline.

[0303] In some embodiments, the device further comprises:

[0304] The second determination module is used to determine a second target layout diagram based on in-shell analysis, out-of-shell analysis and comprehensive layout analysis in the absence of an adjusted system pipeline path; the second target layout diagram is used to represent the comprehensive layout plan of the nuclear island plant.

[0305] In some implementations, the acquisition module 610 may be specifically configured to:

[0306] Obtain the overall R&D objectives of the target nuclear power plant model, which include at least one of the following: advancement objectives, economic objectives, and safety objectives;

[0307] Determine the layout design criteria for the target nuclear power plant model based on the overall R&D objectives;

[0308] Among them, the layout design criteria include at least one of overall requirements, system and equipment layout requirements, installation requirements, and commissioning, operation and maintenance requirements.

[0309] In some embodiments, the device further comprises:

[0310] The verification module is used to perform functional verification on important systems, including passive safety systems.

[0311] The comprehensive layout planning device for nuclear island buildings provided in the embodiment of the present application can be used to execute the comprehensive layout planning method for nuclear island buildings, that is, it has the beneficial effects and implementation methods of the comprehensive layout planning method for nuclear island buildings provided in Example 1 of the present application. For details, please refer to the specific description of the comprehensive layout planning method for nuclear island buildings in the above Example 1, which will not be repeated in this embodiment.

[0312] Based on the same inventive concept, the embodiment of the present application also provides a nuclear island plant. The nuclear island plant provided in the embodiment of the present application is described below with reference to the accompanying drawings.

[0313] Example 3

[0314] An embodiment of the present application also provides a nuclear island plant, wherein the nuclear auxiliary plants of the nuclear island plant are arranged according to a first target layout diagram, and the first target layout diagram is obtained according to the comprehensive layout planning method for the nuclear island plant of any one of Embodiment 1.

[0315] In some embodiments, the nuclear island building includes a main building and a nuclear auxiliary building.

[0316] like Figure 7 As shown, the nuclear auxiliary plant 10 includes ventilation ducts 1, three-layer non-safety-grade cable trays 2, cold water system pipes 3, fire water system pipes 4, chilled water system pipes 5, compressed air system pipes 6 and nuclear island equipment 7;

[0317] In the first direction X, the three-layer non-safety-grade cable tray 2 is arranged between the ventilation duct 1 and the compressed air system pipe 6, the fire water system pipe 4 is arranged between the cold water system pipe 3 and the chilled water system pipe 5, and the nuclear island equipment 7 is arranged on the side of the compressed air system pipe 6 away from the three-layer non-safety-grade cable tray 2.

[0318] The first direction X may be Figure 7 The direction from the ventilation duct 1 to the three-layer non-safety-grade cable tray 2 is from top to bottom.

[0319] Here, the ventilation duct 1 is finally arranged near the left wall, so that the ventilation duct 1 can pass through the left process room (i.e., the service process room), reduce the cross-line of the pipeline, and is arranged at the top; the three-layer non-safety-grade cable tray 2 is arranged near the left wall, so that it can pass through the left process room (user position), reduce the cross-line of the pipeline, and is arranged below the ventilation duct 1; the cold water system pipeline 3 is arranged near the right wall and arranged at the top, supported on the floor by a hanger, and two cold water system pipelines 3 are co-framed; the compressed air system pipeline 6 is arranged near the left wall and arranged below the three-layer non-safety-grade cable tray 2; the chilled water system pipeline 5 is arranged near the right wall and arranged below the cold water system pipeline 3; the fire water system pipeline 4 is arranged near the right wall and arranged at the bottom, which is convenient for valve arrangement. The remaining clearance can meet the transportation needs of personnel communication and nuclear island equipment 7 in this area. The nuclear island equipment can be the largest nuclear island equipment in this area. The clearance can be the available space or clearance distance between objects or between objects and the environment in a certain space or area.

[0320] It should be noted that, in the embodiment of the present application, a common frame means that two or more structures share the same bracket.

[0321] In some embodiments, the chilled water system pipe 5 and the fire water system pipe 4 are supported on the wall in a co-frame form.

[0322] In this embodiment, the chilled water system pipe 5 and the fire water system pipe 4 are supported on the right wall in the form of a common frame, which can reduce the space occupied by the bracket.

[0323] The embodiment of the present application provides a nuclear island plant, and the nuclear auxiliary buildings of the nuclear island plant are arranged according to a first target layout diagram. The first target layout diagram is obtained according to the comprehensive layout planning method for the nuclear island plant of any one of Example 1. Therefore, it has the beneficial effects and implementation methods of the comprehensive layout planning method for the nuclear island plant provided in Example 1 of the present application. For details, please refer to the specific description of the comprehensive layout planning method for the nuclear island plant in the above Example 1, and this embodiment will not be repeated here.

[0324] Based on the same inventive concept, an embodiment of the present application also provides a nuclear power equipment. The nuclear island equipment provided in the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0325] Example 4

[0326] The nuclear power equipment provided in the embodiments of the present application includes the nuclear island plant of any one of Embodiment 3.

[0327] The embodiment of the present application provides nuclear power equipment, including a nuclear island building of any one of Embodiment 3, wherein the nuclear auxiliary buildings of the nuclear island building are arranged according to a first target layout diagram, and the first target layout diagram is obtained according to the comprehensive layout planning method for the nuclear island building of any one of Embodiment 1. Therefore, it has the beneficial effects and implementation methods of the comprehensive layout planning method for the nuclear island building provided in Embodiment 1 of the present application. For details, please refer to the specific description of the comprehensive layout planning method for the nuclear island building in the above-mentioned Embodiment 1, which will not be repeated in this embodiment.

[0328] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present application, but the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of the present application, and these modifications and improvements are also considered to be within the scope of protection of the present application.

Claims

1. A method for comprehensive layout planning of nuclear island plant, characterized in that: include: Obtain the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model; Guided by the layout design criteria and based on the preliminary layout drawing, a general plan is made for the target facilities of the nuclear island according to the overall parameters, the system requirements and the experience feedback to obtain a first target layout drawing, which is used to characterize the comprehensive layout plan of the nuclear island plant.

2. The method according to claim 1, characterized in that The target facilities include main process pipelines, cable main trays, penetrations, ventilation ducts, passages and common area pipelines; the first target layout diagram includes first pipeline travel path information, first target position of the cable main tray, first cable passage position information, first penetration position information, first ventilation duct position information, first passage position information and first common area pipeline position information; The method of obtaining a first target layout diagram by taking the layout design criteria as a guide and the preliminary layout diagram as a basis, and performing overall planning for target facilities of the nuclear island according to the overall parameters, the system requirements and the experience feedback, comprises: Analyze the layout characteristics according to the overall parameters, the system requirements and the experience feedback to obtain the system equipment location and the user location; Based on the preliminary layout diagram, the main process pipeline is planned according to the system equipment location and the user location to obtain the first pipeline travel path information; According to the first pipeline travel path information, the cable main tray is planned to obtain the first target position and the first cable channel position information; Planning the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information; Planning the ventilation duct according to the first target position, the first cable channel position information and the first penetration piece position information to obtain the first ventilation duct position information; According to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information, the channel is planned to obtain the first channel position information; According to the layout design criteria, the common area pipelines of the nuclear island are spatially divided to obtain the first common area pipeline location information.

3. The method according to claim 2, characterized in that The main process pipelines include nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines; The main process pipeline is planned based on the preliminary layout diagram according to the system equipment location and the user location to obtain the first pipeline travel path information, including: Based on the first principle, the main process pipeline is planned according to the system equipment location and the user location to obtain a preliminary pipeline travel path, wherein the first principle includes at least one of the human factor principle and the protection principle; Under the condition that the system requirements are met, based on the second principle and the first layout priority ranking of the main process pipelines, the preliminary pipeline travel path is adjusted to obtain the first pipeline travel path information, wherein the second principle includes at least one of the radiation principle, the internal and external disaster principle, the maintainability principle, the protection principle, the isolation principle, the accessibility principle, the space utilization principle and the economy principle; The first arrangement priority sorting includes: The nuclear steam supply system pipeline, the passive safety system pipeline, the active safety system pipeline, the auxiliary system pipeline and the common system pipeline have descending priorities.

4. The method according to claim 2, characterized in that: The cable master tray includes safety-grade cables and non-safety-grade cables; The planning of the cable main tray according to the first pipeline travel path information to obtain the first target position and the first cable channel position information includes: According to the first pipeline travel path information and the second arrangement priority ranking of the cable master tray, the cable master tray is planned to obtain the first target position and the first cable channel position information; The second arrangement priority sorting includes: The safety-grade cable has a higher priority than the non-safety-grade cable.

5. The method according to claim 2, characterized in that: The penetrations include process penetrations, pipeline penetrations, electrical penetrations and ventilation penetrations; The step of planning the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information includes: According to the first target position, the first cable channel position information and the third arrangement priority ranking of the penetrations, the penetrations are planned to obtain the first penetration position information; The third arrangement priority ranking includes: The process penetration has the highest priority, and the pipeline penetration, the electrical penetration and the ventilation penetration have the same priority.

6. The method according to claim 2, characterized in that The ventilation ducts include passive ventilation ducts, safety-grade ventilation system ducts and non-safety-grade ventilation system ducts; The step of planning the ventilation duct according to the first target position, the first cable channel position information, and the first penetration piece position information to obtain the first ventilation duct position information includes: According to the first target position, the first cable channel position information, the first penetration position information and the fourth arrangement priority ranking of the ventilation duct, the ventilation duct is planned to obtain the first ventilation duct position information; The fourth arrangement priority sorting includes: The passive ventilation duct, the safety-level ventilation system duct and the non-safety-level ventilation system duct have descending priorities.

7. The method according to claim 2, characterized in that The passage includes a personnel passage and an equipment transportation passage; The planning of the channel according to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information to obtain the first channel position information includes: According to the first pipeline running path information, the first cable channel position information, the first penetration position information, the first ventilation duct position information, and the fifth arrangement priority ranking of the channel, the channel is planned to obtain the first channel position information; The fifth arrangement priority ranking includes: The priority of the equipment transportation channel is higher than the priority of the personnel passage channel.

8. The method according to claim 2, characterized in that: The step of spatially dividing the common area pipelines of the nuclear island according to the layout design criteria to obtain the first common area pipeline location information includes: Modeling the target pipeline using three-dimensional modeling software to obtain a modeling result, wherein the three-dimensional modeling software includes at least one of REVIT software, PDMS software and E3D software; For the pipeline-dense area in the modeling results, the common area pipelines of the nuclear island are spatially divided under the guidance of the layout design criteria to obtain the first common area pipeline position information.

9. The method according to claim 8, characterized in that After the target pipeline is modeled using the three-dimensional modeling software and a modeling result is obtained, the method further includes: When there is a target area in the modeling result, determine the system pipelines and their required space dimensions in the target area, wherein the target area is an area where the system pipelines cannot reasonably pass through; For each system pipeline and its required spatial size, based on the necessity of arranging the system pipeline in the target area, the correlation and adjustability of the system pipeline with other system items, the system pipeline path is adjusted to obtain an adjusted system pipeline path, and the adjusted system pipeline path can realize the reasonable passage of each system pipeline.

10. The method according to claim 9, characterized in that After adjusting the system pipeline path, the method further includes: In the absence of the adjusted system pipeline path, a second target layout diagram is determined based on the in-shell analysis, the out-of-shell analysis and the comprehensive layout analysis; the second target layout diagram is used to represent the comprehensive layout plan of the nuclear island plant.

11. The method according to claim 1, characterized in that: The obtaining of the layout design criteria of the target nuclear power plant model includes: Obtaining the overall R&D goal of the target R&D nuclear power model, wherein the overall R&D goal includes at least one of an advancement goal, an economic goal, and a safety goal; Determine the layout design criteria for the target nuclear power plant model to be developed based on the overall R&D objectives; The layout design criteria include at least one of overall requirements, system and equipment layout requirements, installation requirements, and commissioning, operation and maintenance requirements.

12. The method according to claim 1, characterized in that After the target facilities of the nuclear island are generally planned based on the layout design criteria, the preliminary layout drawing, the overall parameters, the system requirements and the experience feedback, and the first target layout drawing is obtained, the method further comprises: Functional verification is performed on important systems, including passive safety systems.

13. A nuclear island plant comprehensive layout planning device, characterized in that: include: The acquisition module is used to obtain the layout design criteria, overall parameters, system requirements, preliminary layout drawings, and experience feedback of the target nuclear power plant model under development; A planning module is connected to the acquisition module and is used to carry out overall planning of the target facilities of the nuclear island based on the layout design criteria, the preliminary layout drawing, the overall parameters, the system requirements and the experience feedback, and obtain a first target layout drawing, wherein the first target layout drawing is used to characterize the comprehensive layout planning of the nuclear island plant.

14. The device according to claim 13, characterized in that The target facilities include main process pipelines, cable main trays, penetrations, ventilation ducts, passages and common area pipelines; the first target layout diagram includes first pipeline travel path information, first target position of the cable main tray, first cable passage position information, first penetration position information, first ventilation duct position information, first passage position information and first common area pipeline position information; The planning module comprises: An analysis submodule, configured to analyze the layout characteristics according to the overall parameters, the system requirements and the experience feedback, and obtain the system equipment location and the user location; A first planning submodule, connected to the analysis submodule, is used to plan the main process pipeline based on the preliminary layout diagram and according to the system equipment location and user location to obtain the first pipeline travel path information; A second planning submodule, connected to the first planning submodule, is used to plan the cable main tray according to the first pipeline travel path information to obtain the first target position and the first cable channel position information; a third planning submodule, connected to the second planning submodule, and configured to plan the penetration component according to the first target position and the first cable channel position information to obtain the first penetration component position information; a fourth planning submodule, connected to the third planning submodule, planning the ventilation duct according to the first target position, the first cable channel position information and the first penetration position information, and obtaining the first ventilation duct position information; a fifth planning submodule, connected to the fourth planning submodule, plans the channel according to the first pipeline running path information, the first cable channel position information, the first penetration position information and the first ventilation duct position information, and obtains the first channel position information; The division submodule is used to spatially divide the common area pipelines of the nuclear island according to the layout design criteria to obtain the first common area pipeline position information.

15. The device according to claim 14, characterized in that The main process pipelines include nuclear steam supply system pipelines, passive safety system pipelines, active safety system pipelines, auxiliary system pipelines and public system pipelines; The first planning submodule is specifically used for: Based on the first principle, the main process pipeline is planned according to the system equipment location and the user location to obtain a preliminary pipeline travel path, wherein the first principle includes at least one of the human factor principle and the protection principle; Under the condition that the system requirements are met, based on the second principle and the first layout priority ranking of the main process pipelines, the preliminary pipeline travel path is adjusted to obtain the first pipeline travel path information, wherein the second principle includes at least one of the radiation principle, the internal and external disaster principle, the maintainability principle, the protection principle, the isolation principle, the accessibility principle, the space utilization principle and the economy principle; The first arrangement priority sorting includes: The nuclear steam supply system pipeline, the passive safety system pipeline, the active safety system pipeline, the auxiliary system pipeline and the common system pipeline have descending priorities.

16. The device according to claim 14, characterized in that The cable master tray includes safety-grade cables and non-safety-grade cables; The second planning submodule is specifically used for: According to the first pipeline travel path information and the second arrangement priority ranking of the cable master tray, the cable master tray is planned to obtain the first target position and the first cable channel position information; The second arrangement priority sorting includes: The safety-grade cable has a higher priority than the non-safety-grade cable.

17. A nuclear island plant, characterized in that: The nuclear auxiliary buildings of the nuclear island plant are arranged according to a first target layout diagram, and the first target layout diagram is obtained according to the comprehensive layout planning method for nuclear island plants according to any one of claims 1 to 12.

18. The nuclear island plant according to claim 17, characterized in that: The nuclear island plant includes the main plant and the nuclear auxiliary plant; The nuclear auxiliary plant includes ventilation ducts, three-layer non-safety-grade cable trays, cold water system pipes, fire water system pipes, chilled water system pipes, compressed air system pipes and nuclear island equipment; In the first direction, the three-layer non-safety-grade cable tray is arranged between the ventilation duct and the compressed air system pipe, the fire water system pipe is arranged between the cold water system pipe and the chilled water system pipe, and the nuclear island equipment is arranged on the side of the compressed air system pipe away from the three-layer non-safety-grade cable tray.

19. The nuclear island plant building according to claim 18, characterized in that: The chilled water system pipes and the fire water system pipes are supported on the wall in the form of a common frame.

20. A nuclear power plant, characterized in that: Comprising a nuclear island plant as described in any one of claims 17 to 19.

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