JP2002007485A - Design aid system for nuclear power plant structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operation efficiency at the individual steps of the production, installing, periodical inspection and remodeling of a nuclear power plant structure. SOLUTION: This designing supporting system is provided with a designing CAD data database 15 storing designing CAD data of the structure of a nuclear power plant, a three-dimensional measuring instrument 11 for three-dimensionally measuring the size of a three-dimensional structure produced actually, an as-built CAD database 13 storing the three-dimensional CAD data measured by the instrument 11, a data comparison and processing means 14 for comparing data within the database 15 with data within the database 13 to calculate the dimensional error of the structure 10 with respect to a designing value, output devices 17, 19 for outputting the calculation result of the means 14 and a terminal device 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design support system for a nuclear power plant structure, and more particularly, to production of a nuclear power plant structure at a factory, installation at a site, and regular inspection remodeling (remodeling accompanying periodic inspection). The present invention relates to a design support system for a nuclear power plant structure that improves work efficiency.

[0002]

2. Description of the Related Art In the construction of a nuclear power plant, much time is required from design to completion, and drastic improvement and rationalization are being promoted. In addition, in the case of regular remodeling, it is required to shorten the construction period on site.

[0003] Hereinafter, the conventional technology will be described by dividing into manufacturing, manufacturing, installation, and regular inspection and remodeling. (A) Manufacturing and production In a nuclear power plant, each component such as piping, valves, equipment, supports, and structures is installed. If these parts are individually brought to the site of a nuclear power plant and assembled, the work efficiency is reduced. Therefore, it is general to assemble them in a factory in advance as large modules or piping modules (hereinafter, referred to as modules). Such modules are checked before shipment from the factory. For example, a reference line is set in the module, and it is checked whether or not each part such as piping, valves, equipment, supports, structures, and the like is arranged with specified accuracy. This check is usually performed by a worker using a measure or a self-made jig. Then, if it is arranged within the specified accuracy, it passes, otherwise it fails. (B) Installation The module assembled in the factory is transported to the site of the nuclear power plant, where the dimensions are measured. The dimensions of the site where the module is installed are also measured. Workers also perform measurements at this site using measures and the like. Then, the measurement results are written by hand on a piping construction drawing, an operation stand diagram, and the like, which are installation plans. (C) Regular inspection and remodeling In regular inspection and remodeling, nuclear power plants are remodeled and added, etc., in the installed state several decades ago. In that case, there are remodeling drawings at the time of remodeling, but the details of the remodeling are not reflected in the drawings at the time of construction. Currently, as-built data does not actually exist. Even in this regular remodeling, with regard to nearby interference and exchanged structures,
Measured by a measurer and measured by a worker
Based on the AD data and the construction drawings, we are studying unloading and remodeling of structures, and manufacturing products for structures to be remodeled.

[0004]

However, according to the above-mentioned conventional technology, at each stage of manufacturing and manufacturing, installation, and regular inspection and remodeling, the size of the module and the like is measured by a worker using a measure or the like. Large measurement errors are likely to occur. If the measurement error is large, the on-site alignment work particularly when installing the module increases, and the work efficiency is reduced.

[0005] Also, measurement data is written by hand on a check sheet. However, the number of check items is enormous due to the large number of measurement items, and a great deal of time is required in terms of data management.

Furthermore, since the design CAD data is design data, the state of installation and the state of construction of a structure in a nuclear power plant are not accurately represented. Therefore, when a structure such as a nuclear power plant is to be exchanged at one time or partially, the actual structure is measured by a three-dimensional measuring machine and the measured coordinates are converted to three.
Unless it is reflected in dimensional CAD, it is not possible to provide products that match local needs.

[0007] It is an object of the present invention to improve work efficiency in each stage of manufacturing, manufacturing, installation and regular inspection and remodeling of a structure in a nuclear power plant.

[0008]

In order to solve the above problems, the present invention provides a design CAD data storage means for storing design CAD data of a structure of a nuclear power plant, and a dimension of a manufactured structure actually manufactured. Three-dimensional measuring device for measuring three-dimensionally, and three-dimensional CA measured with this three-dimensional measuring device
As-built CAD data storage means for storing D data, data comparison processing for comparing data in the design CAD data storage means with data in the as-built CAD data storage means, and calculating a dimensional error of the manufactured structure with respect to the design value Means, and output means for outputting the result of calculation by the data comparison processing means.

According to the above configuration, when the dimensions of a manufactured structure such as a module are measured by the three-dimensional measuring device, the measured data is stored in the as-built CAD data storage means.
Design CAD data is stored in advance in the design CAD data storage means.
The data in the data storage means and the data in the as-built CAD data storage means are compared to calculate a dimensional error of the manufactured structure with respect to the design value. Then, the calculation result is output from the output means, and the worker judges the acceptability of the manufactured structure by looking at the output result.

[0010] The output means is configured to display the corresponding portion in different colors from other portions in accordance with the magnitude of the dimensional error of the manufactured structure. With this configuration, the worker can easily determine whether or not the manufactured structure is acceptable.

[0011] The output result from the output means is automatically transferred to the site where the production structure is installed. In this way, the output result can be confirmed on site and the installation of the manufactured structure can be examined in advance. In addition,
The output result may be displayed on a CRT or may be output as a drawing.

The data comparison processing means, when three-dimensionally measuring the vicinity of the place where the existing structure of the nuclear power plant is installed by the three-dimensional measuring device, updates the existing structure based on the measurement result. It has a function to simulate whether it can be installed on a structure.

Further, the data comparison processing means, when a new structure is actually manufactured and the dimensions of the structure are three-dimensionally measured by the three-dimensional measuring device, the measured data and
It has a function to compare with the measurement results around the place where the existing structure is installed, and to simulate whether a new structure can be installed.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall configuration of a nuclear power plant structure design support system according to the present invention.
As shown in FIG. 1, the design support system of the present invention
Dimension measuring device 11, three-dimensional measuring device data processing means 1
2, as-built 3D-CAD database 13, data comparison processing means 14, 3D-CAD database 1 for design
5, terminal device 16, output device 17, construction drawing creation means 1
8. An output device 19 is provided. In this embodiment, the as-built 3D-CAD database 13 stores the as-built 3D-CAD data storage means in the design 3D-CAD database.
The CAD database 15 constitutes a design 3D-CAD data storage unit, and the terminal device 16, the output unit 17, the construction drawing creating unit 18 and the output unit 19 constitute an output unit.

The three-dimensional measuring device 11 three-dimensionally measures main points A1, A2, A3, A4, etc. on the three-dimensional structure 10, and sends the measurement data 11A to the three-dimensional measuring device data processing means 12. . 3D measuring device data processing means 12
After data processing of the transmitted measurement data 11A, as-built 3D-C
Send to AD database 13 and send as-built 3D-CAD
It is stored in the database 13.

The three-dimensional measuring device 11 generally includes a contact type measuring device and a non-contact type measuring device. The contact-type measuring device installs the measuring device main body at the origin and measures the distance of each point of the structure from the origin with the contact arm, and can measure the structure with high accuracy, but because of the contact type Measurement range is limited. On the other hand, a non-contact type measuring device includes a laser measuring device and a photo measuring device. Among them, the laser measuring device has a laser measuring range of 0.5 to 10
It is effective for measuring three-dimensional data of a three-dimensional structure, which extends over a wide range of 0 m. However, in a laser measurement device, it is difficult to move the device main body due to the large number of devices for processing the measurement data, and it is impossible to measure a narrow portion.
Naturally, it is impossible to measure a portion where the laser beam does not hit the object. Further, the photo measurement device is excellent in mobility, and is effective for measurement of a narrow portion, but in order to create three-dimensional data, it is necessary to take a plurality of images for one object, and Since the data processing must be performed by a person in the post-processing, the processing takes time. From the above, in order to measure a nuclear power plant structure three-dimensionally, it is necessary to use a contact-type measuring device and a non-contact-type measuring device such as a laser measuring device and a photo measuring device. is important.

The three-dimensional measuring device data processing means 12 can process data from each contact type or non-contact type measuring device, and has different data formats depending on the type of the measuring device. We also have a translator to unify them. Then, the origin and the units of the coordinate values can be converted into the same space, that is, the same coordinate system.

The data comparison processing means 14 includes an as-built 3
The D-CAD database 13 and the design 3D-CAD database 15 are compared with each other, and the comparison process is performed interactively with the terminal device 16. That is, the data comparison processing means 14 receives the control signal 16 from the terminal device 16.
When “a” is input, a comparison process is performed between the as-built 3D-CAD database 13 and the design 3D-CAD database 15, and the result is output to the terminal device 16 as data 14A. The terminal device 16 displays the data 14a as an image on a CRT. The data comparison processing means 14 also outputs the data 14A to the output device 17, and the output device 17 prints out the data 14A.

The data comparison processing means 14 includes an as-built 3
When comparing the D-CAD database 13 with the 3D-CAD database 15 for design, an as-built 3D-
Control signals 14a and 14b are output to the CAD database 13 and the design 3D-CAD database 15, respectively. Then, the data comparison processing means 14
The data 13A is taken from the D-CAD database 13 and the data 15A is taken from the 3D-CAD database 15 for design, and the comparison process is executed. In this case, the same area (a place where the design CAD and the data content of the three-dimensionally measured data match) is collated based on a certain reference point. Basically, the data 13A measured three-dimensionally is overwritten on the data 15A on the design CAD. At that time, the accuracy of the three-dimensional measurement data 13A becomes a problem, but the level of the current apparatus is within several mm.

As-built 3D-CAD database 13
Always stores the latest data, and stores as-built data of the installation state and the construction state in the nuclear power plant. For example, for the purpose of creating a product that is more consistent with the site by remodeling or the like, the construction drawing
Outputs the control signal 18a to the as-built 3D-CAD database 13, the construction drawing creating means 18 outputs data 13B from the as-built 3D-CAD database 13.
Can be captured. The construction drawing creating means 18 takes in the data 13B to create a construction drawing, outputs the result to the output device 19 as data 18A, and the output device 19 outputs the construction drawing 19A. Then, the product production design is started based on the construction drawing 19A.

The manufactured product is inspected at the time of shipping to see if it has been constructed to a specified size. At this time, construction drawing 19A
The product manufactured based on is measured by the three-dimensional measuring device 11, and the measured three-dimensional data is used as an as-built 3D-CA.
D database 13. Then, the data comparison processing means 14 includes the as-built 3D-CAD database 13
Is compared with the measured three-dimensional data. Since the comparison here is a comparison with the as-built database, it can be said that it is an accurate structure in the real space. Also, when exchanging or removing a structure due to on-site remodeling or the like, similarly, as-built data of a nearby interfering object is required.

The construction drawing creating means 18 is a 3D-CAD for design.
The construction drawing based on the database 15 is output. That is, when the construction drawing creation means 18 outputs the control signal 18b to the design 3D-CAD database 15, the construction drawing creation means 18 fetches the data 15B from the design 3D-CAD database 15 and uses the data 15B for a new nuclear power plant. Create a construction drawing. After that, in order to obtain as-built data of the completed product, for example, by dimensional inspection at the time of shipping, measurement is performed by the three-dimensional measuring device 11. In that case, the measurement data is compared with the three-dimensional CAD data for design.

Next, the case of manufacturing a product will be described with reference to FIG. First, a design instruction, that is, a construction drawing, is output from the existing CAD (step S20). In order to create a new one from now on, the basic thing is design CA
D. This is a design that has not been modified yet, such as a new plant, and the design CAD can be directly handled as as-built data. Next, a structure is manufactured using the construction drawing (step S21). The completed structure is measured by the three-dimensional measuring device (Step S22), and thereafter, the existing CAD data is compared with the measurement data by the three-dimensional measuring device (Step S23). Next, the dimensional data is created in the same manner as described above and transferred to the site (step S2).
4). Then, even at the site, the data is checked in advance, and the case of installation is examined in advance (step S2).
5).

For example, area information of a nuclear power plant,
An object is selected to determine a comparison object. In this case, the contents are compared with the contents of two types of databases depending on the purpose. One is regular inspection and remodeling in a nuclear power plant. When replacing structures (piping, valves, equipment, etc.), existing data, the CAD for design used at the time of design, is used as a control signal from as-built and terminal equipment 16. 16a. The other is new plant data, that is, existing CAD data.

In a nuclear power plant, piping, equipment, and other structures are congested. The difference between the design value by the design CAD and the as-built data after the construction depends on the installation accuracy. Because it is determined to some extent by standards,
There should be no big difference. However, when a specification change or remodeling occurs, the data is managed as a drawing, but the CAD data that cannot be confirmed on CAD and the remodeling drawing data are not managed in the same way. Virtually unmanageable. Usually, new plant design and preventive maintenance are usually handled by different persons and groups. The bottleneck is that for groups doing preventive maintenance, CA
D is not necessary (at least, the CAD system is often different), and if a modified structure is changed in specifications or replaced with another structure, it will not be reflected, and the design CAD will be converted from as-built data. They tend to stay away.

Details are shown in the regular inspection and remodeling workflow of FIG. Regularly inspect and replace nuclear structures (piping, valves, equipment, etc.) during regular inspection and remodeling. In that case, first, the vicinity of the place to be remodeled and the object to be replaced are measured by the three-dimensional measuring device, and as-built data is created (step S30). In this case, the reason for measuring the periphery of the structure to be replaced is to confirm whether there is any interference when the structure is carried out and carried in. At the site, additional work is being carried out, and especially the operation platform, piping support, piping route, etc. have been changed. Next, the as-built data is reflected on the existing design CAD (step S31). in this case,
The coordinates are adjusted by targeting the reference point and the abstract object. For example, by making the origin coordinates of the existing CAD coincide with the origin coordinates of the three-dimensional measurement, the above coordinate adjustment work is eliminated. By the processing in step S31,
Create as-built data. At this stage, the CAD data is data in the real space. Therefore, a remodeled product is produced. A production drawing, a so-called construction drawing, is created from the 3D-CAD (step S32). The production site produces the structure according to the construction drawing (step S33).

After manufacturing, it is checked whether the finished product is correctly finished according to the construction drawing. At this time, the dimension is measured by the three-dimensional measuring device (step S34).
Next, the three-dimensionally measured data is compared with the existing CAD data reflected in the as-built data in step S31 (step S35). The algorithm and method for comparing dimensions will be described later with reference to FIG. Thereafter, dimension measurement data is created (step S36). Usually, there is an inspection table, fill in the required dimensional points and ship it. This data is written on paper, and the specific electronic data is not transferred to the site. That is, when the structure is sent to the site, the site obtains dimension data, that is, three-dimensional coordinate data in advance, as a study when installing the structure. As a result, the joints of the structures can be examined in detail in advance, and the on-site construction process can be shortened, and further, a structure that matches the site can be realized.

The layout of the structure is slightly different between the actual data in the real space and the virtual space in the design. In this case, it is necessary to confirm the design change drawing and replace it with three-dimensional information, or to actually check the check of the interfering object by the on-site investigation by the human naval tactics, and to carry out the desk simulation by the sketch drawing. In such a case, by managing the data in the as-built 3D-CAD database, there is no desk simulation by confirmation and actual measurement based on drawings. So-called 3D-CAD data,
True remodeling simulations are also possible. Furthermore, when dismantling a nuclear power plant, a simulation using as-built data can be performed, and a more realistic study can be performed.

When there is no as-built data such as a new plant, the as-built data is manufactured according to the design drawing, and the method of the present embodiment can be basically used.

FIG. 4 shows a comparison flow between the three-dimensional coordinate data measured by the three-dimensional measuring device and the CAD data.
This will be described with reference to FIG. In the CAD system 40, a structure 41A is selected on the screen as a comparison target, and the three-dimensional measuring device 42 performs three-dimensional measurement of the structure 41B. The structure 41A and the structure 41B are the same. Accordingly, it is necessary to list coordinate information, that is, three-dimensional information. Example of output of each 3D coordinate is 4
3 and 44. These can be output from each system. Commonly used is CSV format,
Numerical values are separated by commas, tabs, etc., and must be in a format that can be easily imported into other systems. When measuring, it is necessary to create a correspondence table between CAD data and measurement points in advance. In the collation, each file is read by another system and associated in an interactive manner. If the objects to be measured are disclosed to each other in advance, they can be automatically collated. Furthermore, it is necessary to be able to automatically transfer to the format of the inspection table before shipping. In addition, these data can be sent to the site and used sufficiently as information to be considered in advance.

FIG. 5 shows a procedure for creating an as-built data by measuring an actual site with a three-dimensional measuring device.
Here, a case where a module installed in an existing plant is replaced will be described. In an existing plant, piping, equipment, and the like are arranged in space as modules. Among them, when a certain module 50 is replaced, it is necessary to measure the module 50 and measure as-built data on how the neighboring interfering structure is arranged in addition to the measurement of the module 50 when the module 50 is carried out and carried in. There is. Further, there are points around the periphery where structures and the like are congested and cannot be measured from the position of the three-dimensional measuring device 51. In that case, although limited by physical conditions to some extent, basically, the three-dimensional measuring device must be moved to a place where it does not become a blind spot for measurement. In the example of FIG. 5, the three-dimensional measuring device 52 is installed in the opposite direction. At that time, the three-dimensional measuring device 5
With respect to the measurement data 53 and 54 obtained respectively from the reference points 1 and 52, the data is synthesized based on the origin and two or more reference points,
Data measured from different places is processed via the three-dimensional measuring device data processing means 55. Further, the data is transferred to the CAD system 57 by the data comparison processing means 56, the data is registered as an as-built in the CAD for existing design, and stored in the as-built 3D-CAD database 58. Reference numeral 59 denotes a 3D-CAD database for design.

FIG. 6 shows an example of an as-built data creation procedure when measurement is performed by a three-dimensional laser measurement device. Basically, the processing contents are the same as those in the case of FIG. 5 and the like, but the three-dimensional laser measuring device 61 generates three-dimensional coordinates of the target by applying a laser beam to the target. Specifically, a measurement range 62 (a range surrounded by a square) is measured. In this case, three objects are set in accordance with the object within the measurement range 62 (here, the module 63 such as piping and equipment).
A dimensional mesh is set and laser light is emitted. According to the size and measurement accuracy of the module 63,
Set the laser measurement points on the mesh.

Further, when performing more detailed measurement, the three-dimensional laser measuring device 61 is moved (the moved three-dimensional laser measuring device is assumed to be 61A), and a measurement range 64 is set and measured. Then, the data of the measurement result is synthesized by the three-dimensional measuring device data processing means 65. In this case, a basic shape is generated instead of coordinates from the measured point cloud data. These data are synthesized by the data comparing means 66 and CA
The data is transferred to the D system 67, compared with existing data, and replaced with as-built data. After that, Azbild 3D-
It is stored in the CAD database 68. Reference numeral 69 denotes a 3D-CAD database for design.

FIG. 7 shows an example in which actual as-built data is compared with existing CAD data. Design CAD
The screen example 70 shows data that has been subjected to comparison processing by the data comparison processing means 14 (see FIG. 1) in a piping route layout of a certain system of a nuclear power plant. Here, the measurement data is compared with the existing CAD data, and different portions are highlighted. Specifically, depending on the degree of deviation from the default value due to dimensions and installation angles, etc.
They are displayed in different colors, such as red and blue. Furthermore, when the pipe or the like of the object is selected using a mouse or the like, the length of the pipe,
Attribute information such as diameter and material is displayed as digital values. Note that, in the method of collating coordinates, attention is paid to a characteristic portion where the coordinates match, and the matching is performed by a method of matching the coordinates. Another method is to match them by a method of automatically recognizing them from each other's shape and layout information in the vicinity.

[0035]

As described above, according to the present invention,
When replacing a nuclear power plant structure at once or partly, assemble data is created by measuring the structure or the vicinity of the installation location of the structure with a three-dimensional measuring device, and the data is converted to existing CAD data. , It is possible to carry out production and construction based on as-built data. As a result, the structure replacement work can be completed in a short period of time.

Further, by comparing the CAD data with the measurement data by using a three-dimensional measuring device, the work such as shipping inspection can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a nuclear power plant structure design support system according to the present invention.

FIG. 2 is a diagram showing a processing flow when a nuclear power plant structure is newly manufactured.

FIG. 3 is a diagram showing a processing flow when replacing a nuclear power plant structure.

FIG. 4 is a diagram showing a comparison flow between three-dimensional coordinate data measured by a three-dimensional measuring device and CAD data.

FIG. 5 is a diagram showing an as-built data creation procedure when replacing a structure of an existing plant.

FIG. 6 is a diagram illustrating a procedure for creating as-built data when measurement is performed by a three-dimensional laser measurement apparatus.

FIG. 7 is a diagram showing a display example in which as-built data is compared with existing CAD data.

[Explanation of symbols]

 Reference Signs List 10 3D structure 11 3D measuring device 12 3D measuring device data processing means 14 Data comparison processing means 15 3D-CAD database for design 16 Terminal device 17 Output device 15 3D-CAD database for design 13 As-built 3D-CAD database 18 Construction drawing creation means 19 Output device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koichi Murayama 3-1-1, Sachicho, Hitachi-shi, Ibaraki Nuclear Power Division, Hitachi, Ltd. (72) Inventor Takeshi Sakamoto Minami-Otsuka 3-chome, Toshima-ku, Tokyo 53B-11 Hitachi Plant Construction Design Co., Ltd. F-term (reference) 5B046 AA02 DA02 FA09 GA01 HA09 KA05

Claims (5)

[Claims] 1. A design CAD data storage means for storing design CAD data of a structure of a nuclear power plant, a three-dimensional measuring device for three-dimensionally measuring dimensions of a manufactured structure actually manufactured, and the three-dimensional measuring device 3D CAD measured by measuring device
As-built CAD data storage means for storing data;
Data comparison processing means for comparing the data in the design CAD data storage means with the data in the as-built CAD data storage means to calculate a dimensional error of the manufactured structure with respect to a design value; And an output unit for outputting a calculation result of the nuclear power plant. 2. The design support system according to claim 1, wherein said output means displays a corresponding portion in a different color from other portions in accordance with a magnitude of a dimensional error of said manufacturing structure. Characteristic design support system for nuclear plant structures. 3. The nuclear power plant structure according to claim 1, wherein an output result from said output means is automatically transferred to a site where said production structure is installed. Object design support system. 4. The design support system according to claim 1, wherein the data comparison processing means performs three-dimensional measurement using a three-dimensional measurement device around a place where an existing structure of the nuclear power plant is installed. A design support system for a nuclear power plant structure, having a function of performing a simulation as to whether or not the existing structure can be installed on a new structure based on the measurement result. 5. The design support system according to claim 4, wherein the data comparison processing means actually manufactures the new structure and measures three-dimensional dimensions of the structure with a three-dimensional measuring device. Sometimes, it has a function of performing a simulation of whether or not a new structure can be installed by comparing the measurement data with the measurement results around the place where the existing structure is installed. Design support system for nuclear power plant structures.