Design method suitable for plane layout of nuclear power plant

Abstract

The embodiment of the invention relates to the field of industrial building groups, in particular to a design method suitable for plane layout of a nuclear power plant. According to the design method suitable for the plane layout of the nuclear power plant, the relevance among the operation units is determined by dividing the attributes of the operation units, and the relative positions of the operation units are determined according to the relevance, so that the relative position models of the operation units are constructed; and meanwhile, a plane layout optimization model is established, so that the plane layout optimization model is associated with the central point and the boundary position of each operation unit in the relative position model, and automatic iteration and adjustment of a layout scheme are realized, thereby obtaining an optimal plane layout design scheme. The problems of incomplete consideration of multiple factors and low efficiency in manual scheme design are solved, and the scientificity and economical efficiency of the plane layout of the nuclear power plant are improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of industrial building complexes, and in particular to a design method applicable to the plan layout of a nuclear power plant. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] A nuclear power plant is a power plant that uses nuclear energy to produce electricity on a large scale. Nuclear fuel releases a large amount of energy through nuclear fission reactions, thereby converting nuclear energy into heat energy to generate steam for steam turbines, which drive generators to generate electricity. Since nuclear energy raw materials are radioactive, the layout design of nuclear power plants needs to consider controlling the harmful effects of radioactive substances on the environment, while ensuring the safety of nuclear facility operations and the coordination of scheduling of various operating units. Summary of the invention

[0004] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0005] An embodiment of the present application provides a design method for the plane layout of a nuclear power plant, which includes the following steps: S10: determining the design requirements of the plane layout scheme of the nuclear power plant; S20: determining the operating units included in the nuclear power plant according to the design requirements; S30: determining the attributes of each operating unit, and determining the correlation between each operating unit according to the attributes of each operating unit; S40: determining the relative position of each operating unit according to the correlation of each operating unit determined in step S30; S50: establishing a model that can characterize the relative position of each operating unit according to the relative position determined in step S40, the model including the center point and boundary position of each operating unit; S60: establishing a plane layout design optimization model, and associating the plane layout design optimization model with the center point and boundary position; S70: using the model in step S60 to optimize the model in step S50, and determine the optimal plane layout design scheme.

[0006] The embodiment of the present application provides a design method for the plane layout of a nuclear power plant. By dividing the attributes of each operating unit, the correlation between the operating units is determined, and the relative position of each operating unit is determined based on the correlation, thereby constructing a relative position model of each operating unit; at the same time, a plane layout optimization model is established to associate the plane layout optimization model with the center point and boundary position of each operating unit in the relative position model, thereby realizing automatic iteration and adjustment of the layout plan, thereby obtaining the optimal plane layout design plan, improving the problems of incomplete consideration of multiple factors and low efficiency in manual plan design, and improving the scientificity and economy of the nuclear power plant plane layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to further illustrate the above and other advantages and features of the present application, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings together with the following detailed description are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only describe typical examples of the present application and should not be regarded as limiting the scope of the present application.

[0008] Figure 1 It is a flow chart of a design method for a nuclear power plant plan layout provided in an embodiment of the present application;

[0009] Figure 2 It is a schematic diagram of comprehensive mutual relationship analysis provided by the embodiment of the present application;

[0010] Figure 3 It is a schematic diagram of the reference solution layout provided in the embodiments of the present application. DETAILED DESCRIPTION

[0011] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0012] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0013] The disclosure below provides a plurality of different embodiments or examples to implement the present application. In order to simplify the disclosure of the present application, the parts and methods of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present application. In the description of the embodiments of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0014] At present, most nuclear power plant layout design schemes are derived from the designer's experience analysis and reference to past mature layout methods. In the process of putting them into practice, the layout is manually adjusted to meet the needs of nuclear power generation application scenarios. However, manual layout adjustment and iterative schemes have problems of incomplete considerations and low efficiency. Therefore, a more efficient nuclear power plant layout design scheme is needed to assist design decisions.

[0015] The embodiment of the present application provides a design method suitable for the plan layout of a nuclear power plant. Figure 1 A schematic diagram showing a flow chart of a design method for a nuclear power plant floor plan provided by an embodiment of the present application. In some embodiments, for example, Figure 1 As shown, it includes the following steps: S10: determine the design requirements of the plane layout scheme of the nuclear power plant; S20: determine the operating units included in the nuclear power plant according to the design requirements; S30: determine the attributes of each operating unit, and determine the correlation between each operating unit according to the attributes of each operating unit; S40: determine the relative position of each operating unit according to the correlation of each operating unit determined in step S30; S50: establish a model that can characterize the relative position of each operating unit according to the relative position determined in step S40, and the model includes the center point and boundary position of each operating unit; S60: establish a plane layout design optimization model, and associate the plane layout design optimization model with the center point and boundary position; S70: use the model in step S60 to optimize the model in step S50 to determine the optimal plane layout design scheme.

[0016] The embodiment of the present application provides a design method for the plane layout of a nuclear power plant. By dividing the attributes of each operating unit, the correlation between the operating units is determined, and the relative position of each operating unit is determined based on the correlation, thereby constructing a relative position model of each operating unit; at the same time, a plane layout optimization model is established to associate the plane layout optimization model with the center point and boundary position of each operating unit in the relative position model, thereby realizing automatic iteration and adjustment of the layout plan, thereby obtaining the optimal plane layout design plan, improving the problems of incomplete consideration of multiple factors and low efficiency in manual plan design, and improving the scientificity and economy of the nuclear power plant plane layout.

[0017] In some embodiments, in step S60, the plane layout design optimization model reflects the relative position diagram of each operating unit and the connection between each operating unit, the area and name of each operating unit; the relative position and area of ​​each operating unit are optimized according to the scope of the site where the nuclear power plant is set up and the entrance information.

[0018] In some embodiments, in step S60, the site scope is set and site scope information is accepted, for example, the site area and entrance information, so that each work unit can be arranged within the determined site scope, the degree of concentration and distribution can be controlled, and the site area can be fully utilized; the relative position model in step S50 is associated so that the center point and boundary position of each work unit in the relative position model coincide with the center point and boundary position of each work unit in the plane layout design optimization model in step S60, so as to ensure that the closeness between each work unit remains relatively unchanged.

[0019] In some embodiments, in step S30, the following steps are also included: S31: determining the closeness between each operation unit, the closeness characterizing the attributes of each operation unit;

[0020] S32: Determine the correlation between the various operation units according to the closeness, and the correlation represents the mutual distance between the various operation units.

[0021] In some embodiments, in step S30, the attributes of each operation unit are divided and determined in a predetermined manner. In some embodiments, the attributes of each operation unit of a nuclear power plant include: logistics objects, logistics volume, logistics routes, auxiliary service functions, and logistics technologies. Among them, logistics objects refer to the main business service objects of a nuclear power plant. In some embodiments, logistics objects are directly determined according to the detailed list of operation units in the general plan; logistics volume refers to the operation volume of logistics objects of different categories in a nuclear power plant. In some embodiments, the logistics volume is analyzed by collecting relevant actual data of logistics volume of other nuclear power plant layout design projects, and adaptive predictions are made for the logistics volume of a nuclear power plant according to the actual reactor type of the current project; logistics routes refer to the flow routes between two operation units, reflecting the overall operation process of a nuclear power plant and the degree of mutual relationship between the two operation units; auxiliary service functions refer to auxiliary production facilities, such as fire pump rooms; logistics technologies refer to the equipment, facilities, and processes required for the operation of various functions of a nuclear power plant, which can be expressed in terms of technical level and production efficiency.

[0022] In some embodiments, the correlation between various operation units is obtained by comprehensively analyzing the logistics relationship and non-logistics relationship between various operation units.

[0023] In some embodiments, step S31 also includes: S311: determining the closeness of the logistics relationship between each operating unit; S312: determining the closeness of the non-logistics relationship between each operating unit; S313: determining the closeness between each operating unit based on the closeness determined in step S311 and the closeness determined in step S312.

[0024] In some embodiments, by analyzing the attributes of each operating unit, the strength of the logistics relationship between the operating units is determined to obtain a logistics mutual relationship table; the non-logistics relationship of other activity correlations between the operating units other than the logistics relationship is analyzed to obtain the closeness between the operating units and obtain a non-logistics mutual relationship table. Finally, a comprehensive analysis is performed on the logistics relationship and the non-logistics relationship to obtain the comprehensive closeness of the mutual relationship between the operating units.

[0025] In some embodiments, in step S311, each operation unit includes materials in different forms, and the same parameter is used to express the flow intensity of materials in different forms, and the closeness of the logistics relationship between each operation unit is determined according to the intensity of material flow.

[0026] In some embodiments, the logistics relationship is the entire flow process of material resources from production to consumption, which is mainly determined by the logistics objects and logistics volume. Logistics analysis includes the order and intensity of material movement. Among them, the order of material movement can be obtained by drawing the material movement path between the work units; the logistics intensity includes the intensity of material flow and the amount of waste materials and other materials transported out, and the logistics intensity needs to be measured based on the data. The logistics forms of the entire nuclear power plant are basically divided into gas, liquid, electrical, and solid categories. In some embodiments, power is used to reflect the intensity of solid material flow. The formula is as follows:

[0027]

[0028] Wherein, W represents the work done in transporting solid materials, t represents the time for transporting solid materials, v represents the speed for transporting solid materials, F is the traction force for transporting solid materials; and P represents the flow intensity of solid materials.

[0029] In some embodiments, the flow intensities of gas, liquid and electricity are respectively represented by their flow rates, where the flow rate unit of gas is Nm 3 / h, the unit of liquid flow is m 3 / h, the unit of electricity flow is A.

[0030] In some embodiments, in step S313, for each assignment of multiple closeness in step S311 and for each assignment of multiple closeness in step S312, the two assignments of each operation unit are superimposed to determine the closeness between the operation units.

[0031] According to the calculated logistics intensity data, the logistics intensity is divided into levels so as to compare the closeness of the relationship between the operation units. In some embodiments, as shown in Table 1, the logistics intensity is divided into 5 levels according to the proportion of logistics volume and the proportion of logistics routes, and the levels are assigned according to the intensity and marked with corresponding symbols.

[0032] Table 1 Logistics intensity table

[0033]

[0034] In some embodiments, the non-logistics relationship in the plane layout of the nuclear power plant eliminates the influencing factors of the material flow process, considers the internal influence of each operating unit and the external environment, and makes adaptive improvements according to the process particularity of the nuclear power plant to obtain 10 basic influencing factors of the closeness of the improved non-logistics relationship, among which the influencing factors of the closeness of the non-logistics relationship are divided into categories as shown in Table 2.

[0035] In some embodiments, in step S312, factors affecting the closeness of the non-logistics relationship between each work unit include: the order of process flow; radiation protection requirements; safety requirements; safety series; fire and explosion protection requirements; equipment installation, inspection, operation and maintenance requirements; plant emergency needs; external event considerations; working environment requirements and other factors.

[0036] Table 2 Non-logistics relationship level influencing factors - Nuclear power plant plane influencing factors

[0037]

[0038]

[0039] In some embodiments, as shown in Table 3, the non-logistics relevance level is evaluated, and the non-logistics relationship closeness is divided into 6 levels, and values ​​are assigned according to the necessary degree of proximity between two operating units, and letters are used to represent the closeness level between the two operating units.

[0040] Table 3 Non-logistics relationship level table

[0041] Level of closeness of relationship symbol Points Proportion(%) Absolutely necessary to get close A 4 2-5 Especially necessary to be close E 3 3-10 important I 2 5-15 generally O 1 10-25 unimportant U 0 45-80 Don't want to get close X -1

[0042] Figure 2 The schematic diagram of comprehensive mutual relationship analysis provided by the embodiments of the present application is shown. In some embodiments, Figure 2As shown, the logistics relationship and non-logistics relationship are integrated and analyzed, and the comprehensive mutual relationship between each functional area is obtained according to Tables 1-3, and then a comprehensive mutual relationship diagram is drawn, among which the comprehensive mutual relationship closeness level evaluation is shown in Table 4.

[0043] In some embodiments, Figure 2 As shown, the functional area is divided into 14 operating units, and letters are used to indicate the closeness level between each operating unit, wherein the letters corresponding to two different operating units represent the closeness level of the relationship between the two operating units.

[0044] Table 4 Comprehensive mutual relationship classification table

[0045]

[0046]

[0047] In some embodiments, step S20 further includes: representing the work unit as a building name represented by a serial number and determining the area of ​​each building.

[0048] In some embodiments, in step S20, it is necessary to determine the operating units within the nuclear power plant, that is, to determine the items that need to be arranged in the design site, and then generate a general plan operating unit list. Table 5 is a general plan operating unit list of a certain type of reactor. In some embodiments, as shown in Table 5, the operating unit includes nuclear power hardware facilities in the design site of the nuclear power plant, such as a reactor building, and supporting facilities that match the hardware facilities, such as a fire pump room; the operating unit name is marked with a corresponding serial number to facilitate the reference to each operating unit in the subsequent layout. In some embodiments, the plan operating unit list also includes the building area of ​​each operating unit, which is convenient for determining the relative size of each operating unit according to a predetermined ratio when constructing the model later.

[0049] Table 5 List of general plan operation units for a certain type of pile

[0050] Serial number Operation Unit Serial number Operation Unit 1 Reactor building 8 Emergency Diesel Engine Plant Row A 2 Special workshop 9 Emergency Diesel Engine Plant Row B 3 Fuel depot 10 Air compressor room 4 Post-irradiation inspection facilities 11 Desalination plant 5 Special target test facilities 12 Fire pump room 6 Equipment maintenance workshop 13 Entrance and exit of the protected area 7 Public gas plant 14 Underground corridor

[0051] In some embodiments, in step S10, determining the design requirements for the nuclear power plant's floor plan requires determining the laws, regulations and standards that need to be referred to or implemented for the nuclear power plant's floor plan, determining the main process system principles and main process flow lines, so that the nuclear power plant's floor plan design can be carried out in accordance with the law and regulations under legal norms, and the layout plan can be adapted to the nuclear power plant's process flow and hardware facilities, so that the nuclear power plant obtained by the layout design can be put into production safely and efficiently.

[0052] In some embodiments, in step S40, according to Figure 2The comprehensive mutual relationship between the various operating units shown is used to determine the relative position of each operating unit. For example, in Table 4, A represents the absolute importance of the closeness between the two operating units, while Figure 2 As shown in the figure, the closeness between the two operating units, the raw material warehouse and the mixing workshop, is A, indicating that the closeness of the logistics relationship and the closeness of the non-logistics relationship between the two operating units are very high. That is, in the plane layout, the distance between the raw material warehouse and the mixing workshop should be set closer to facilitate mutual coordination during production.

[0053] In some embodiments, in step S50, according to the relative positions of the operating units of the nuclear power plant determined in S40, an operating unit relative position model is established to reflect the relative positions of all operating units in the general plan and the closeness of the connection between the operating units, wherein the relative position model includes the center point and boundary position of each operating unit. In some embodiments, Rhino and Grasshopper digital means can be used for auxiliary modeling to establish a relative position visualization model in a computer.

[0054] In some embodiments, in step S70, an operator flow applied to the overall layout is designed in Grasshopper software, that is, a set of operators suitable for the overall layout is designed, and the operators are associated with the relative position model, so that when adjusting and optimizing the layout, the parameters can be adjusted with the help of the computer operator, thereby realizing the parametric design of the overall layout adjustment.

[0055] In some embodiments, in step S70, the plane layouts of the two iterative models are arranged to generate a plane diagram, and the impact distance is changed; the main body part and the spacing part of the operation unit are distinguished; Figure 3 FIG. 1 shows a schematic diagram of a reference solution layout provided by an embodiment of the present application. In some embodiments, as Figure 3 As shown, each work unit is colored and distinguished separately; finally, the above-generated floor plan layout is processed, the area ratio of the work unit filling the site is adjusted, and the connection between the various work units is obtained. By adjusting some parameters, multiple feasible overall plan layout schemes are previewed in real time in the Rhino software, realizing efficient plan adjustment and iteration.

[0056] In some embodiments, a plurality of layout schemes generated in the software are optimized, and a predetermined number of preferred schemes, for example 2-3, are selected. The predetermined number of preferred schemes are drawn as a formal master plan layout diagram, and experts are organized to conduct a decision review. Adjustments are made based on the review results to obtain the optimal master plan layout diagram to assist in design decision-making.

[0057] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0058] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A design method for the plane layout of a nuclear power plant, characterized in that: It includes the following steps: S10: Determine the design requirements of the plan layout of the nuclear power plant; S20: Determining the operating units included in the nuclear power plant according to the design requirements; S30: determining the attributes of each operation unit, and determining the association between the operation units according to the attributes of the operation units; S40: determining the relative positions of the various operation units according to the associations of the various operation units determined in step S30; S50: according to the relative positions determined in step S40, establishing a model capable of representing the relative positions of the respective operating units, wherein the model includes the center points and boundary positions of the respective operating units; S60: Establishing a plane layout design optimization model, and associating the plane layout design optimization model with the center point and the boundary position; S70: Utilize the model in step S60 to optimize the model in step S50 to determine the optimal plan layout design solution.

2. The design method according to claim 1, characterized in that: In step S60, the plane layout design optimization model reflects the relative position diagram of each operation unit, the connection between each operation unit, the area and the name of each operation unit; The relative position and area of ​​each of the operating units are optimized according to the scope of the site where the nuclear power plant is set up and the entrance information.

3. The design method according to claim 1, characterized in that: In step S30, the following steps are also included: S31: Determine the closeness between the various operation units, where the closeness represents the attributes of the various operation units; S32: Determine the correlation between the various operation units according to the closeness, wherein the correlation represents the mutual distance between the various operation units.

4. The design method according to claim 3, characterized in that: In step S31, it also includes: S311: Determine the closeness of the logistics relationship between the various operation units; S312: Determine the closeness of the non-logistics relationship between the various operation units; S313: Determine the closeness between the various operation units according to the closeness determined in step S311 and the closeness determined in step S312.

5. The design method according to claim 4, characterized in that: In step S313, for each of the multiple closeness assignments in step S311 and for each of the multiple closeness assignments in step S312, the two assignments of each operation unit are superimposed to determine the closeness between the operation units.

6. The design method according to claim 4, characterized in that: In step S311, the various operation units include materials in different forms, and the same parameter is used to express the flow intensity of the materials in different forms. The closeness of the logistics relationship between the various operation units is determined according to the intensity of the material flow.

7. The design method according to claim 4, characterized in that: In step S312, factors that affect the closeness of the non-logistics relationship between each work unit include: the order of process flow; radiation protection requirements; safety requirements; safety series; fire and explosion prevention requirements; equipment installation, inspection, operation and maintenance requirements; plant emergency needs; external event considerations; working environment requirements and other factors.

8. The design method according to claim 1, characterized in that: In step S20, it also includes: The work unit is represented by representing the name of the building with a serial number and determining the area of ​​each building.

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