JP6184862B2 - Piping maintenance support system - Google Patents

Description

  The present invention relates to a support system for maintaining and managing piping constituting a plant, for example, in a nuclear facility, and more particularly to a piping maintenance supporting system suitable for constructing a scaffold for piping maintenance.

  As background art of this technical field, in Patent Document 1, “a maintenance plan information database for storing various types of maintenance plan information in each system of the plant, a system diagram CAD database for storing CAD drawing information in each system of the plant,” Display means for displaying the CAD drawing information and the maintenance plan information, and the maintenance plan information in the system to be evaluated can be merged with the CAD drawing information in the system to be visualized and displayed on the display means. Information processing means for enabling the maintenance plan information to be edited on a display screen and saving the edited result in the maintenance plan information database, and instructions for causing the information processing means to execute the display, editing, and saving, respectively A plant maintenance plan support system characterized by having an input means for inputting "."

  Further, in Patent Document 2, “a CAD model storage unit that holds a three-dimensional CAD model to be constructed, a construction process storage unit that holds construction process data, and an area shape of a scaffold necessary for construction work is described above. The scaffold model creation processing unit created from the model and construction process data, the scaffold process extraction processing unit that extracts the scaffold-related process from the construction process data in the construction process storage unit, and the completeness of the scaffold on the visualization date A scaffold expression format determination processing unit that determines the scaffold expression format determined from the relationship between the date and the scaffold process, and a display processing unit that displays the scaffold model simultaneously with the CAD model according to the determined scaffold expression format. ."a.

  In these techniques, maintenance information for piping and CAD are merged to create a maintenance plan on a CAD screen or to install a scaffold.

JP 2009-211164 A JP 2010-108321 A

  It is known that various deterioration events occur in the piping and piping support structures in the plant as the operation progresses, but the number of piping and piping support structures (hereinafter simply referred to as piping) per plant is enormous. .

  For this reason, in the preventive maintenance work, the inspection items are managed for each periodic inspection, and the environment for the welding points and part points of all piping in the plant is aimed at optimizing the inspection plan and implementing planned inspections. Establish a database that summarizes information such as conditions, specifications, assumed deterioration events, importance of inspection, past inspection results, estimated inspection date and time, piping drawings, system drawings, etc. We have developed a maintenance program system that links them.

  However, as part of preventive maintenance at the plant, there are generally a large number of parts to be inspected, so there is a need to check the inspection space when conducting the inspection and to consider the installation of scaffolding. It was.

  In addition, it was difficult to grasp in advance the total number of scaffolds at one regular inspection. Due to these issues, there is a problem that systematic inspection and rational inspection cannot be performed, and there are inspection items for all deterioration pipes per regular inspection, or inspection points for specific floors and areas, and various deterioration events. It is necessary to create a mechanism that can be seen at a glance, simplify the examination of the installation of scaffolds for inspection, and create a mechanism that can understand the total number of scaffolds.

  From the above, an object of the present invention is to provide a pipe maintenance support system suitable for constructing a scaffold for pipe maintenance.

  From the above, in the present invention, it is constituted by a computer system provided with a calculation unit, a storage unit, a display unit, and an input unit, and information on the scaffolds to be installed is inspected when performing inspections for a plurality of pipes constituting the plant. A piping maintenance support system for obtaining a storage information storage unit storing inspection items and inspection plans for each pipe, and storing three-dimensional information storing three-dimensional position information for each pipe A scaffold model storage unit that stores information on the scaffold model at the time of inspection of the piping, and a scaffold information storage unit, and the calculation unit extracts the piping to be inspected from the maintenance information storage unit 3 The 3D position information of the pipe is obtained from the 3D information storage unit, the scaffold model storage unit scaffolding model information and the 3D position information of the pipe are displayed in a 3D display on the display device for inspection. Interference check result The information is characterized in that is reflected in the scaffold information storage unit.

  According to the present invention, a pipe maintenance support system suitable for constructing a scaffold for pipe maintenance can be obtained. In particular, according to the present invention, a maintenance information database and a three-dimensional information (database) including assumed deterioration events, scheduled inspection dates, inspection results, and inspection items for welding points and parts points in all piping and piping support structures of the plant. ) And 3D CAD are linked to each other, and a certain scaffold is automatically placed at the inspection location, so that the inspection location can be visualized and the inspection space can be confirmed. Furthermore, the total number of inspection scaffolds for one regular inspection can be grasped. Therefore, systematic inspection and rational inspection can be performed.

The figure which shows the whole structure of the plant maintenance system which concerns on this invention. The figure which shows an example of the maintenance information stored in maintenance information storage part DB1. The figure which shows an example of the three-dimensional model of piping. The figure which shows an example of the three-dimensional information of piping stored in three-dimensional information storage part DB2. The figure which shows an example of the scaffold information stored in scaffold model storage part DB3. The figure which showed the space of the scaffold dimension which the information of input area DB3B means. The figure which showed the three-dimensional state drawn from scaffold information DB3 and CAD information DB2. The figure which shows the case where an inspection location exists in a proximity position. The figure which shows an example of the scaffold total number information stored in scaffold total number storage part DB5.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows the overall configuration of a plant maintenance system according to the present invention. The plant maintenance system of the present invention can be configured by a general computer system. In this figure, DB1, DB2, DB3, DB4, and DB5 with a symbol DB are various databases, and S101, S102, S103, and S104 with a symbol S are various processing functions executed by the computing unit of the computer. It is.

  In the present invention, since CAD three-dimensional information is handled, the computer system may be configured in cooperation with the CAD system, or may be configured with the CAD system itself. Although the display device and the input / output device are not shown in FIG. 1, these are naturally provided, and the calculation result is displayed in three dimensions, or the storage content of the storage unit is affected according to the user input, The screen is operated.

  In FIG. 1, maintenance information storage unit DB1 stores maintenance information of piping and piping support structures in the plant (hereinafter simply referred to as piping unless otherwise required). An example of the maintenance information stored in the maintenance information storage unit DB1 is shown in FIG.

  The maintenance information storage unit DB1 for storing maintenance information includes a piping specification area DB1A, an inspection item area DB1B, an inspection performance area DB1C, an inspection plan area DB1D, and the like. Among these, the piping specification area DB1A includes information such as piping parts (individual pipes, elbows and piping support structures) constituting a group of pipes and the place of welding, and the inspection item area DB1B includes inspections for each piping part. Items and inspection methods are included, and the inspection results area DB1C and the inspection plan area DB1D store past results and future plans for each piping component.

  The maintenance information stored in the maintenance information storage unit DB1 is, in short, for all welding points and parts points (DB1A) for piping in the plant, assumed deterioration events, necessary inspection items and inspection methods (DB1B), In addition, as the inspection record (DB1C) and the inspection plan (DB1D) planned from the inspection record, the timing, piping conditions, position information on the three-dimensional CAD, the drawing number related thereto, and the like are stored.

  In the piping specification of FIG. 2, two pipes having a pipe number AAA-2 and a pipe number AAA-5 are illustrated. It can be understood that the pipe number AAA-2 is a pipe part formed by welding and connecting the pipe 10 which is a straight pipe and the pipe 9 which is a straight pipe with an elbow 8.

  The three-dimensional information storage unit DB2 stores three-dimensional information (CAD information) of piping. An example of a three-dimensional model of piping stored in the three-dimensional information storage unit DB2 will be described with reference to FIGS.

  First, FIG. 3 is a three-dimensional model of piping used in the following description. The pipe 10 and the pipe 9 are welded through the elbow 8 at the positions of the welding lines W10 and W9. The center positions of both ends of the pipe 10 which is a straight pipe are D and C, and the center positions of both ends of the pipe 9 which is a straight pipe are A and B. The positions on the three-dimensional coordinates (X, Y, Z) of the center positions A, B, C, D at both ends of the pipe are as shown in the figure. The three-dimensional coordinates of A are (XA, YA, ZA), the three-dimensional coordinates of B are (XB, YA, ZA), the three-dimensional coordinates of C are (XC, YC, ZC), and the three-dimensional coordinates of D are (XC , YC, ZD).

  FIG. 4 shows an example of the three-dimensional information of the pipe stored in the three-dimensional information storage unit DB2. The three-dimensional information storage unit DB2 includes a pipe specification area DB2A, a coordinate (center point coordinate) area DB2B, a pipe diameter area DB2C, a pipe curvature area DB2D, and the like as part of the CAD specifications. Among these, the piping specification area DB2A has the same contents as the piping specification area DB1A of the maintenance information storage unit DB1 of FIG. Therefore, the maintenance information DB 1 in FIG. 1 and the CAD information DB 2 in FIG. 4 can be referred to each other.

  Returning to FIG. 1, in the three-dimensional CAD-maintenance information mapping processing unit S101, which is a processing function executed by the computing unit of the computer, as a result of linking the above-described piping maintenance information DB1 and CAD information DB2, The position of 3D CAD and maintenance information can be confirmed at the same time.

  Specifically, the maintenance information in the maintenance information storage unit DB1 and the inspection location marked on the three-dimensional CAD can be browsed simultaneously. Thereby, for example, when it is desired to confirm the position information and maintenance information of the inspection location, the maintenance information and three-dimensional position of the pipe can be confirmed simultaneously. Further, by clicking on an item to be examined in the maintenance information storage unit DB1, the target position on the three-dimensional CAD is highlighted (emphasized), so that it is easy to confirm.

  As a specific reference example of the maintenance information DB1 and the CAD information DB2, first, the three-dimensional configuration of the pipe AAA-2 in the information of the CAD information DB2 is as shown in FIG. Looking at the information of the piping AAA-2 in the maintenance information DB 1 while looking at FIG. 3, the weld line W10 in FIG. 3 is assumed to be fatigue cracking as a deterioration event, the inspection item for this is UT, and other inspections A method etc. can be read from inspection item field DB1B. Moreover, there is no track record of performing past inspections for this part, and the construction subject is scheduled to be implemented in the vibration countermeasures next year (n + 1) in the inspection plan area DB1D. In addition, about the weld line W9 of piping AAA-2, the inspection of the display crack was completed in the last year (n-1) vibration countermeasure.

  Based on the above correspondence, for example, when the welding line W10 of the pipe AAA-2 is pointed out on the display screen of the three-dimensional model in FIG. 3, the welding line W10 is highlighted on the screen and checked from the maintenance information DB1. The inspection contents of the item, the past, and the plan can be displayed, and the coordinate information can be displayed from the CAD information DB2.

  In order to actually execute the inspection plan described above, it is necessary to secure a scaffold for field work as part of the preparation stage. For example, it is necessary to install a scaffold for taking measures against vibration of the weld line W10 portion of the pipe AAA-2 scheduled for next year.

  Next, a process for securing a scaffold in the maintenance system of FIG. 1 will be described. The first stage of securing the scaffold is an inspection space interference check process, and the second stage is a process for calculating the total number of scaffolds. Among these, for the first stage inspection space interference check processing, the scaffold model storage unit DB3, the scaffold model display processing unit S102, and the inspection space interference check processing unit S103 are referred to.

  Among these, the scaffold model storage unit DB3 stores a scaffold model information table 112 as shown in FIG. 5, and stores the dimensions of the scaffold model (scaffold No. AAA100) to be installed and the inspection space dimensions. .

  Specifically, in the dimension specification area DB3A, the scaffold dimensions (vertical x (mm) X scaffold dimension horizontal y (mm)) in order from the top, height z (mm) as the inspection space height, the installation location of the scaffold The distance L (mm) from the floor to the scaffold and the distance H (mm) from the inspection location to the center on the scaffold upper surface are set.

  In addition, the input area DB3B of the scaffold model storage unit DB3 holds specific numerical values of the above-described individual dimensions input by the user. In this example, the scaffold dimensions X and Y are (1500 × 1000), the inspection space height Z is (1200), the distance L from the floor to the scaffold is (2000), and the distance H from the inspection point to the center on the upper surface of the scaffold is (800 )Met. 1 includes a dimension specification area DB3A and an input area DB3B. Data formation in the other areas DB3C and DB3D is performed in the scaffold information storage section DB4 after the first stage processing.

  FIG. 6 is a diagram showing a space based on the scaffold dimensions X, Y, and Z that are set and inputted in accordance with the dimension specification area DB3A and obtained in the input area DB3B. A space 114 with dimensions X and Y of the scaffold plate 113 (1500 × 1000) and height Z (1200) is defined by setting input.

  In the scaffold model display processing unit S102, first, the maintenance information DB1 is referred to, and all inspection points of a specific inspection year (for example, the next year) in the whole plant are extracted. In this, the inspection schedule of piping AAA-2 is also extracted. Next, the scaffold model display processing unit S102 extracts the three-dimensional information of the pipe AAA-2 from the CAD information DB2 using the pipe AAA-2 as a key, and finally adds the scaffold information to the three-dimensional information of the pipe AAA-2. Displays the three-dimensional state.

  FIG. 7 is a diagram showing a three-dimensional state drawn from the scaffold information DB 3 and the CAD information DB 2 for the pipe AAA-2. For the display here, the distance L from the floor surface to the scaffold is considered. It can be visually confirmed that the inspection area 111 including the weld line W9 which is the inspection portion of the pipe AAA-2 is positioned in the space 114 by the scaffold dimensions X, Y, and Z.

  In this case, the height of the inspection region 111 from the scaffold 113 is H (mm). The inspection space interference check processing unit S103 individually checks whether the inspection area 111 including the weld line W9 can be inspected by the scaffold setting in the scaffold information DB3. The length of the inspection area 111 from the scaffold 113 is H (mm), but it is individually determined whether the inspection of the bottom surface of the pipe welded portion can be performed without difficulty at this height position. Make corrections such as lowering the distance from the floor.

  The interference check area DB3C in the scaffold information DB3 of FIG. 5 records the presence / absence of inconveniences as a result of the interference check, and the change area DB3D records the change points (dimension correction) after the interference check so that the failure is released. Is reflected in the display of the scaffold model display processing unit S102.

  The inspection space interference check processing unit S103 also takes into account problems between inspection locations. Basically, the scaffolding is designed on the assumption that the scaffolding is installed at each inspection location, but it is conceivable that a plurality of inspection locations exist in close proximity.

  For example, in FIG. 8, there are inspection points 111A and 111B at close positions. Initially, the scaffold setting is individually set for the inspection points 111A and 111B. However, when it is determined that the proximity model is in the close positional relationship based on the display result of the scaffold model display processing unit S102, the scaffold center coordinates are ( If the scaffold 113 is arranged at the point 115 designated as X, Y, Z), it is possible to cope with the inspection points 111A and 111B with one scaffold. Such a change is also recorded in the change point area DB3D of the scaffold information DB3 and is reflected in the display of the scaffold model display processing unit S102.

  In this way, in the inspection space interference check processing unit S103, whether the inspection space on the scaffold model and the scaffold model automatically installed interferes with the inspection space on the other scaffold model and the scaffold model on the three-dimensional CAD. If there is interference, re-set the appropriate inspection space and scaffold model, re-display (remapping) on the three-dimensional information display section so that it is re-installed at one location, and at the same time scaffold information The scaffold model shape and dimensions are stored in the storage unit DB4.

  As a result, it is possible to ensure checkability and the optimal number of scaffolds. In FIG. 1, the storage content of the scaffold information storage unit DB4 basically reflects the result of checking the storage content of the scaffold model storage unit DB3 from the viewpoint of interference.

  In executing the processing of the inspection space interference check processing unit S103 described above, the following matters should be further considered.

  Regarding the processing in the inspection space interference check processing unit S103, by setting the inspection year to be confirmed by installing a scaffold, the inspection point in the maintenance information storage unit DB1 in the designated year is automatically set as shown in FIG. It is better to automatically arrange the scaffolds immediately below H (mm) from the inspection location. The height H (mm) is a value that can be confirmed in advance that the inspection work can be performed without any problem. Thereby, the inspection space of the piping lower area | region which is hard to inspect can be ensured automatically. The scaffold model is installed so as to be parallel to the floor, and is not installed in the case of L (mm) or less from the floor. The direction of the scaffold model is handled as coordinates on a three-dimensional CAD.

In addition, as shown in FIG. 8, the inspection location (here, point A: coordinates (x _A , y _A , z _A )) in the inspection space 114 of the scaffold model 113 is the inspection location (here, Point B: If the inspection spaces interfere with each other (coordinates (x _B , y _B , z _B )), it means that the inspection location is close. decide.

  Thereby, the inspection space is integrated into one. Thus, the scaffold placement information (coordinates) of these scaffold models and the dimensions of the newly installed scaffold model (inspection space) are described in the dimensions of the scaffold after the interference check in the scaffold model information table DB3. It is stored in the storage unit DB4.

  After the processing is completed, the total number of scaffolds calculation processing unit S104 calculates the total number of scaffolds in one plant or the total number of scaffolds in a specific area. The information is stored as the total number of scaffolds table 115 in the total number of scaffolds storage unit DB5.

  Further, the total number of scaffolds in the specified year is calculated based on the scaffold arrangement information stored in the scaffold information storage unit DB4. At the same time, the total number of scaffolds for each specific area is also calculated. As shown in FIG. 9, the total number of scaffolds in the inspection at one plant can be confirmed by the scaffold total number calculation result table 115. According to FIG. 9, the total number of scaffolds is displayed for each area.

DB1: Maintenance information storage unit DB2: Three-dimensional information storage unit DB3: Scaffolding model storage unit DB4: Scaffolding information storage unit DB5: Scaffolding total number storage unit S101: Three-dimensional CAD-maintenance information mapping processing unit S102: Scaffolding model display processing unit S103 : Inspection space interference check processing unit S104: Total number calculation processing unit for scaffolding

Claims (2)

A pipe maintenance support system that is composed of a computer system that includes a computing unit, a storage unit, a display unit, and an input unit. And
The storage unit includes a maintenance information storage unit that stores inspection items and inspection plans for each pipe, a three-dimensional information storage unit that stores three-dimensional position information for each pipe, and a pipe inspection A scaffold model storage unit that stores information on the scaffold model, and a scaffold information storage unit,
The arithmetic unit, the obtained three-dimensional position information of the piping from the three-dimensional information storage unit extracts the piping referring to inspect scheduled the inspection plan from security information storage unit, the scaffold of the scaffolding model storage unit Model information and three-dimensional position information of piping are displayed in a three-dimensional manner on the display unit, and information on the scaffold model that can eliminate interference as information on interference check results when performing inspection is stored in the scaffold information. be reflected in part, be re-displayed information of the scaffold information storage unit after reflected on the display unit, the interference check result is displayed visualized Rutotomoni, the scaffold model that can eliminate interference of the scaffold information storage unit Piping maintenance support system characterized in that information on the total number of scaffolds is obtained using this information . The piping maintenance support system according to claim 1 ,
A piping maintenance support system characterized in that when a pipe to be inspected is present at a close position, it is confirmed that the inspection can be performed by one scaffold model and is reflected in the total number of scaffolds.

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