CAP1000 nuclear power bulk material installation method and CAP1000 nuclear power structure

Abstract

The invention provides a CAP1000 nuclear power bulk material installation method and a CAP1000 nuclear power structure. The CAP1000 nuclear power bulk material installation method comprises the steps that a support structure used for installing bulk materials is divided into a plurality of parts, so that a plurality of support components are formed; selecting a relative positioning point on each bracket component; when the position, relative to the theoretical coordinate system, of the bulk material corresponding to the support component is converted into the position relative to the relative positioning point, the bulk material is installed on the support component with the relative positioning point as the reference, and an installation module is formed; and the multiple installation modules are assembled. Through the combination of the relative positioning points and the theoretical coordinate system, the bulk materials can be installed before the bracket is hoisted to the nuclear island, so that the bulk materials are installed in advance, the construction logic that the civil engineering structure is firstly installed and then the bulk materials are installed is changed, and the construction progress can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear power construction, and in particular to a CAP1000 nuclear power bulk material installation method and a CAP1000 nuclear power structure. Background Art

[0002] Generally speaking, in nuclear power projects, bulk materials can be divided into the following four categories: process piping materials (including pipes, pipe fittings, supports and hangers, etc.), cables and accessories, instrument pipes and valves and other materials. The bulk materials are huge in quantity, with a wide variety of specifications and the installation process is cumbersome.

[0003] At present, in the construction of bulk materials of CAP1000 nuclear power, the general construction logic is that after the installation of civil engineering or steel structure (support structure) is completed, the bulk materials begin to be installed, and the positioning is carried out according to the nuclear island coordinate system, and then the bulk materials are rooted according to the positioning results. There are a large number of support structures in the CAP1000 nuclear power project. Generally, during the construction process, the support structure is first assembled at the assembly site, and then hoisted to the nuclear island after the assembly is completed. During this period of time, due to the influence of construction logic and the non-nuclear island coordinate system, the installation of bulk materials cannot be started, affecting the construction progress. Considering the cumulative tolerance of the theoretical coordinate system and the support structure, and the influence of hoisting deformation, the deviation of bulk materials after installation is difficult to control within the design requirements. Summary of the invention

[0004] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0005] The purpose of the present invention is to provide a CAP1000 nuclear power bulk material installation method, which can improve the technical problems of time-consuming bulk material installation and slow construction progress in the prior art.

[0006] Another object of the present invention is to provide a CAP1000 nuclear power structure, which can improve the technical problems existing in the prior art such as time-consuming installation of bulk materials and slow construction progress.

[0007] The embodiments of the present invention can be implemented in the following ways:

[0008] A CAP1000 nuclear power bulk material installation method, the bulk material is supported by a bracket; the CAP1000 nuclear power bulk material installation method comprises:

[0009] dividing a support structure for mounting the bulk material into a plurality of parts to form a plurality of support components;

[0010] selecting a relative positioning point on each of the support components;

[0011] Converting the position of the bulk material corresponding to the support component relative to the theoretical coordinate system into a position relative to the relative positioning point, and installing the bulk material on the support component based on the relative positioning point to form an installation module;

[0012] Assemble a plurality of the installation modules.

[0013] Optionally, the step of assembling a plurality of the installation modules comprises:

[0014] Obtain the theoretical coordinate system for nuclear island construction;

[0015] Positioning the relative positioning point based on the theoretical coordinate system;

[0016] Carry out assembly construction of multiple installation modules

[0017] Optionally, the step of assembling a plurality of the installation modules further comprises:

[0018] The multiple installation modules are hoisted to the construction site for assembly.

[0019] Optionally, before the step of hoisting the plurality of installation modules to the construction site for assembly, the CAP1000 nuclear power bulk material installation method further comprises:

[0020] The force calculation of the installation module is performed, and the position of the hanging point is determined through eccentricity analysis.

[0021] Optionally, after the step of assembling the plurality of installation modules, the CAP1000 nuclear power bulk material installation method further comprises:

[0022] Get the nuclear island coordinate system;

[0023] The position of the bulk material is reviewed through the nuclear island coordinate system to verify the accuracy of the installation position of the bulk material.

[0024] Optionally, the assembly construction of the multiple installation modules is carried out simultaneously during the civil construction process.

[0025] Optionally, the mounting module further comprises a structural component mounted on the bracket component.

[0026] A CAP1000 nuclear power structure, wherein bulk materials in the CAP1000 nuclear power structure are installed using the above-mentioned CAP1000 nuclear power bulk materials installation method.

[0027] The beneficial effects of the CAP1000 nuclear power bulk material installation method and the CAP1000 nuclear power structure provided by the embodiments of the present invention include:

[0028] The embodiment of the present invention provides a CAP1000 nuclear power bulk material installation method, which includes dividing a support structure for installing bulk materials into multiple parts to form multiple support components; selecting a relative positioning point on each support component; when the position of the bulk material corresponding to the support component relative to the theoretical coordinate system is converted to the position relative to the relative positioning point, the bulk material is installed on the support component based on the relative positioning point to form an installation module; and assembling multiple installation modules. Through the combination of relative positioning points and theoretical coordinate systems, the installation of bulk materials can be carried out before the support is hoisted to the nuclear island, thereby advancing the installation of bulk materials and changing the construction logic of installing the civil structure first and then the bulk materials, thereby greatly improving the construction progress.

[0029] An embodiment of the present invention further provides a CAP1000 nuclear power structure, in which bulk materials are installed using the above-mentioned CAP1000 nuclear power bulk material installation method, thus also having the beneficial effect of being able to advance the installation of bulk materials and greatly improving the construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or features may have the same or similar reference numerals.

[0031] Figure 1 A step diagram of a CAP1000 nuclear power bulk material installation method provided according to one aspect of the present invention is shown;

[0032] Figure 2 A partial structural schematic diagram of a CAP1000 nuclear power structure provided according to one aspect of the present invention is shown;

[0033] Figure 3 A schematic structural diagram of an installation module provided according to one aspect of the present invention is shown.

[0034] 100-CAP1000 nuclear power structure; 110-installation module; 111-support component; 112-bulk material; 113-relative positioning point; 120-support structure. DETAILED DESCRIPTION

[0035] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0036] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", "vertical" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] At the same time, it should be noted that the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, an integral connection, or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components, etc. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Figure 1 The step diagram of the CAP1000 nuclear power bulk material installation method provided in this embodiment, Figure 2 A partial structural diagram of the CAP1000 nuclear power structure 100 provided in this embodiment, Figure 2 The bracket shown in FIG. 1 is formed by splicing a plurality of bracket components 111. Figure 1 and Figure 2 This embodiment provides a CAP1000 nuclear power bulk material installation method, and also provides a CAP1000 nuclear power structure 100. The bulk materials 112 in the CAP1000 nuclear power structure 100 are constructed and installed using the CAP1000 nuclear power bulk material installation method.

[0040] Specifically, the CAP1000 nuclear power bulk material installation method provided in this embodiment includes the following steps:

[0041] S01 : dividing a support structure 120 for mounting a bulk material 112 into a plurality of parts to form a plurality of support components 111 .

[0042] The plurality of bracket components 111 are a plurality of subcomponents of the bracket structure 120. The complete bracket structure 120 can be formed by splicing the plurality of bracket components 111. The specific structure of the bracket structure 120 is shown in FIG. Figure 1 Specifically, the support component 111 can be a plurality of parts formed by assembling the existing support structure 120; or before splicing, the components of the support structure 120 can be divided into a plurality of parts according to the installation requirements of the bulk material 112 during the design process of the support structure 120, thereby obtaining a range of a plurality of support components 111, and then the specific components of each support component 111 are designed, and finally a plurality of support components 111 that can exist independently of each other are obtained by splicing.

[0043] Furthermore, in the process of dividing the support structure 120 into multiple parts, it is necessary to consider the installation requirements of the bulk materials 112 to ensure that each bulk material 112 can be pre-installed and fixed on the support component 111 after division. In addition, the hoisting capacity of the construction site must also be considered during division to ensure that each support component 111 can be hoisted separately.

[0044] Optionally, the bracket component 111 can be configured to be obtained by welding a plurality of steel structures.

[0045] S02 : Select a relative positioning point 113 on each bracket component 111 .

[0046] Figure 3 1 shows a schematic diagram of the structure of the installation module 110 provided in this embodiment, and the structural module will be described later. Figure 3 The structural module shown in FIG. 1 includes a bracket component 111. Figure 1-Figure 3 In this embodiment, the CAP1000 nuclear power bulk material installation method further includes selecting a relative positioning point 113 on each bracket component 111. The selection of the relative positioning point 113 can be performed according to the bracket component 111 and the installation position of the bulk material 112 to be installed thereon, so as to ensure that each bulk material 112 can be positioned and installed according to the relative positioning point 113.

[0047] Alternatively, if Figure 3 The position of a relative positioning point 113 on a bracket component 111 is shown. It can be understood that in some other embodiments, or for other bracket components 111, the position of the relative positioning point 113 can also be set at other positions, or even at a position that is not on the surface of the bracket component 111.

[0048] S03: Convert the position of the bulk material 112 corresponding to the bracket component 111 relative to the theoretical coordinate system into a position relative to the relative positioning point 113, and install the bulk material 112 on the bracket component 111 based on the relative positioning point 113 to form the installation module 110.

[0049] The installation module 110 can be regarded as a structural module formed after the bulk material 112 is installed on the support component 111. When designing the CAP1000 nuclear power structure 100, the support structure 120 and the bulk material 112 are positioned according to the theoretical coordinate system. Therefore, after executing step S02, the position of the relative positioning point 113 on the theoretical coordinate system is determined and unique. When the installation position of the bulk material 112 in the theoretical coordinate system is determined, the position of the bulk material 112 relative to the theoretical coordinate system can be converted to the position of the relative positioning point 113 on the support component 111 to be installed, and then the bulk material 112 is installed based on this position with the relative positioning point 113 as the reference, so that the installation requirements of the bulk material 112 can be guaranteed even when the nuclear island is not completed and the nuclear island coordinate system does not exist, and the construction logic of installing the bulk material 112 after the civil structure is installed is changed.

[0050] Furthermore, if in the CAP1000 nuclear power structure 100, in addition to the bulk material 112, other structural components need to be installed on the support structure 120, then when assembling to form the installation module 110, the structural components can be correspondingly installed on the support component 111. In other words, in this embodiment, the installation module 110 also includes structural components installed on the support component 111.

[0051] S04: Assembling multiple installation modules 110.

[0052] After executing step S03 , the obtained multiple installation modules 110 may be assembled.

[0053] Since the construction logic is changed, during the execution of step S03, the installation and positioning of the bulk material 112 does not depend on the nuclear island coordinate system, so the nuclear island civil construction and the operation of step S04 can be carried out simultaneously.

[0054] Specifically, the step of assembling the plurality of installation modules 110 includes:

[0055] S41: Obtain the theoretical coordinate system for nuclear island construction.

[0056] Since the position of the nuclear island is also located in the theoretical coordinate system when the CAP1000 nuclear power structure 100 is designed, the nuclear island will be built according to the theoretical coordinate system during the civil construction process. Therefore, when assembling the installation module 110, the theoretical coordinate system position based on which the nuclear island is built can be obtained first.

[0057] S42: Positioning the relative positioning point 113 based on the theoretical coordinate system.

[0058] After executing step S41 to obtain the theoretical coordinate system for nuclear island construction, the relative positioning point 113 can be positioned according to the theoretical coordinate system, thereby ensuring accurate positioning of the multiple installation modules 110 .

[0059] At the same time, when the relative positioning point 113 is positioned based on the theoretical coordinate system, the installation position of the bulk material 112 can also be compared and analyzed based on the theoretical coordinate system to reduce the installation error of the bulk material 112. This process can be performed after step S43 described later.

[0060] S43: assembling a plurality of installation modules 110.

[0061] A plurality of installation modules 110 are hoisted to the construction site for assembly.

[0062] The assembly construction of the multiple installation modules 110 and the assembly settings of the multiple installation modules 110 themselves are performed at different positions, thereby reducing the welding workload in the island, reducing the amount of high-altitude operations and thus reducing the risks of high-altitude operations.

[0063] Since the installation module 110 is transferred to the construction site for assembly by hoisting, before executing step S43, the CAP1000 nuclear power bulk material installation method further includes: calculating the force of the installation module 110 and determining the position of the hoisting point by eccentricity analysis, so as to facilitate the hoisting operation.

[0064] The step of calculating the force on the installation module 110 may be performed before executing step S43 , for example, after executing step S01 .

[0065] Furthermore, after assembling the plurality of installation modules 110, the CAP1000 nuclear power bulk material installation method further includes:

[0066] Obtain the nuclear island coordinate system. Review the position of bulk material 112 through the nuclear island coordinate system to verify the accuracy of the installation position of bulk material 112

[0067] The CAP1000 nuclear power bulk material installation method and the CAP1000 nuclear power structure 100 provided in the embodiments of the present invention realize the installation of bulk materials 112 at the assembly site. Through modular settings, the parallel operation of the installation of bulk materials 112 and civil construction is realized, so that the actual deviation generated during the installation of bulk materials 112 is controlled within the design range, and the modular installation of bulk materials 112 is realized, which effectively shortens the construction period and improves the economic benefits.

[0068] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technology in the field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for installing bulk materials of CAP1000 nuclear power plant, wherein the bulk materials are supported by brackets; characterized in that: The CAP1000 nuclear power bulk material installation method includes: dividing a support structure for mounting the bulk material into a plurality of parts to form a plurality of support components; selecting a relative positioning point on each of the support components; Converting the position of the bulk material corresponding to the support component relative to the theoretical coordinate system into a position relative to the relative positioning point, and installing the bulk material on the support component based on the relative positioning point to form an installation module; Assemble a plurality of the installation modules.

2. The CAP1000 nuclear power bulk material installation method according to claim 1 is characterized in that: The steps of assembling a plurality of the installation modules include: Obtain the theoretical coordinate system for nuclear island construction; Positioning the relative positioning point based on the theoretical coordinate system; Carry out assembly construction of multiple installation modules.

3. The CAP1000 nuclear power bulk material installation method according to claim 2 is characterized in that: The step of assembling a plurality of the installation modules further comprises: The multiple installation modules are hoisted to the construction site for assembly.

4. The CAP1000 nuclear power bulk material installation method according to claim 3 is characterized in that: Before the step of hoisting the plurality of installation modules to the construction site for assembly, the CAP1000 nuclear power bulk material installation method further comprises: The force calculation of the installation module is performed, and the position of the hanging point is determined through eccentricity analysis.

5. The CAP1000 nuclear power bulk material installation method according to claim 1 is characterized in that: After the step of assembling the plurality of installation modules, the CAP1000 nuclear power bulk material installation method further comprises: Get the nuclear island coordinate system; The position of the bulk material is reviewed through the nuclear island coordinate system to verify the accuracy of the installation position of the bulk material.

6. The CAP1000 nuclear power bulk material installation method according to claim 1 is characterized in that: During the civil construction process, the assembly construction of the multiple installation modules is carried out simultaneously.

7. The CAP1000 nuclear power bulk material installation method according to claim 1 is characterized in that: The mounting module further includes a structural component mounted on the bracket component.

8. A CAP1000 nuclear power structure, characterized in that: The bulk materials in the CAP1000 nuclear power structure are installed using the CAP1000 nuclear power bulk materials installation method as described in any one of claims 1-7.

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