JP4707689B2 - Valve check support system - Google Patents

Description

  The present invention supports the inspection after opening and closing the valve and attaching the isolation tag to the valve to make the piping facility isolated from the operation when performing inspection and maintenance work of a nuclear power plant, etc. About the system.

  Conventionally, as shown in FIG. 6, the valve inspection system of the nuclear reactor 1 includes a system configuration ledger 4 in which the system configuration such as the open / close state of the valve is described, and an isolation tag 31 in which the isolation status of the valve is described during the inspection work. Inspection work is performed by a work management system 3 using a computer that manages and creates

  At the time of the inspection work, the work management system 3 issues an isolation tag 31 corresponding to the inspection work location, and the worker (operator) carries the isolation tag 31 and goes to the inspection work location. And after attaching the isolation tag 31 to the valve (isolation valve) 2 which isolate | separates an inspection work location, the valve | bulb is closed and an inspection work location is made into an isolation state, and it works.

  After the inspection work, the worker extracts a check sheet 42 for each valve to be checked (hereinafter abbreviated as a check sheet) 42 from the system configuration register 4 and attaches it to the valves in the reactor 1 according to the check sheet 42. Go to the place of the isolation tag 31.

  When the worker comes in front of the corresponding valve, first, the valve number on the check sheet 42 and the valve nameplate are checked, and if they match, the necessary opening / closing operation is performed based on the check sheet 42. The configuration is returned to the original state, and the isolation tag 31 is removed from the valve 2. Then, record the completion of each work on the check sheet. Complete this task for all applicable valves.

  In the above work, first, many isolation tags from the work management system must be carried to the location where the corresponding valve is located, and it takes time to drop or lose it or to search for the corresponding isolation tag.

  After the inspection work, it takes time because all the check sheets of the corresponding valve must be extracted from a huge system configuration ledger, and in that case, another sheet may be accidentally extracted. Moreover, since the worker must read and grasp the state of the valve described in the check sheet, it takes time and may make a grasp mistake.

  In order to eliminate these mistakes and time-consuming drawbacks, workers are required to be extremely burdensome, effortless to make mistakes and careful attention.

On the other hand, in Patent Document 1, a worker carries a portable communication device when working at a large-scale office such as a nuclear power plant, and the worker communicates with a host computer to retrieve data as necessary. , Display your current position on the output screen of the portable communication device, or display the location of the target equipment, and display the movement route from the current position or any position to the target equipment location Thus, an information system is described that provides useful guidance to workers moving within the office or managers overseeing the workers.
However, the technique described in this patent document does not relate to valve inspection, but how to implement it efficiently and safely in cooperation with the operation plan of the power plant.
JP 11-88935 A

  The present invention has been made in view of the above-mentioned circumstances, and is capable of efficiently and safely performing inspection work of a valve for isolating the work location in pipe repair and inspection work in a nuclear reactor or the like. It aims at providing the valve check support system which can be done.

  In order to achieve the above object, a valve inspection support system according to the present invention includes a database for storing system configuration data including position information of work target equipment such as valves and power supplies, and work status data of the work target equipment, and work status data. Management system that determines isolation status based on the isolation valve or whether it is within isolation range, system configuration management system that creates work plan based on isolation status and system configuration data, and storage of isolation status The isolation tag equipped with the IC chip, the mobile terminal that acquires the isolation status stored in the isolation tag and transmits the work status data, and the database work status based on the data sent from the mobile terminal And means for updating data.

  In the present invention, while the isolation state is managed by the work management system, the work sequence is created based on the isolation state and the system state by the system configuration management system that manages the system state for operation. Data that is the basis of driving can be centrally managed, and work mistakes and unexpected accidents can be prevented.

  Preferably, the system configuration management system includes priority order determination means for extracting work target equipment candidates near the work position based on the system configuration data and determining the work target equipment and the work order based on the isolation state. It is good to do so.

  In other words, when performing valve inspection work, the valve data is stored in the IC chip attached to the valve nameplate by the system configuration management system when the valve nameplate is created, and the valve nameplate is attached to the valve. An isolation tag with an IC chip that indicates and stores the isolation status is provided, the work content is taken from the work management system at the time of inspection work, the system configuration of the valve and the inspection order of the valve are taken into the mobile terminal from the system configuration management system, Work according to the inspection order displayed on the mobile terminal.

  In particular, the system configuration data includes the travel time between the work target facilities, and the priority determination means efficiently determines the work order based on the travel time and transmits the travel route information to the mobile terminal. Work can be done.

  In addition, when displaying a movement route, it is possible to alert an operator and prepare for an unexpected situation by simultaneously displaying an emergency blame route.

  Further, in the valve inspection support system according to the present invention, the work management system transmits the isolation state of the work target facility to the mobile terminal, and the mobile terminal receives the isolation state sent from the work management system, and The received quarantine state and the quarantine state stored in the quarantine tag are collated, and the collation result is displayed on the portable terminal.

  Note that the isolation state sent from the work management system may be received by a portable terminal carried by the worker and written on the IC chip of the isolation tag. In particular, since the work management system manages the isolation state of the valve, an IC chip may be provided on the valve nameplate and the isolation state may be written to the IC chip via a portable terminal.

  According to the present invention, since the isolation state and system configuration are centrally managed, the valve inspection work can be performed efficiently and safely.

  Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram of a valve inspection support system 10 according to the first embodiment.

  In this figure, as a system to support inspection of the valve 2 in the reactor 1, work management is performed by a computer that performs isolation status editing such as creation of isolation tags and isolation type settings such as work sheet management and isolation tag creation by a computer connected by a local LAN. The system 3, the system configuration management system 4A that manages the system configuration data and instructs the priority of work, and the file management system 7 that manages the database that is the database of these computers and the system are connected to the local LAN. A portable terminal 6 that is coupled with the file management system 7 via a wireless LAN and is carried by a worker 5 who performs valve inspection and inputs system configuration data and searches for the isolation status of valves and their power sources, and the terminal. A valve nameplate 21A embedded with a non-contact IC chip storing valve data capable of reading the data stored in the System isolation tag 31A similarly contactless IC chip storing data is embedded is configured.

  Next, the operation of the valve inspection support system 10 having the above configuration will be described with reference to FIGS. FIG. 2 is an explanatory diagram of the flow of data and work procedures of the entire system, and FIG. 3 is a data flow diagram.

  When the valve nameplate 21A is created by the system configuration management system 4A, the valve data such as the valve name, number and function is stored in the IC chip 22 attached to the valve nameplate 21A, and the valve nameplate 21A is attached to the corresponding valve 2. To do. In the work management system 3, when the isolation tag 31A described later is issued, the isolation status data is printed, and the isolation status data is stored in the IC chip 32 built in the isolation tag 31A.

  As preparations before the inspection work, first, the configuration data of the valve group to be inspected from the system configuration data 7a in the file management system (database) 7 via the system configuration management system 4A is transmitted to the portable terminal (hereinafter abbreviated as PDA) 6 via the wireless LAN. In addition, the priority order data of the valve inspection sequence and inspection route is also obtained. The obtained valve data is transmitted from the PDA 6 to the work management system 3, and the relevant valve isolation status data is obtained from the work management data 7 b of the file management system 7 via the work management system 3. That is, the isolation status data such as whether the isolation tag 31A is already attached or the isolation operation and the isolation tag 31A are installed is input to the PDA 6 via the wireless LAN. For the valve to be isolated this time, the isolation tag 31A is issued from the work management system 3 and is brought to the inspection work. At this time, the isolation status data is stored in the IC chip 32 of the isolation tag 31A as described above. This completes the preparation for inspection work. Here, an example of the data structure of the work management data 7b is shown in FIG. For each piece of identification information (valve / power supply number) of work target equipment such as a valve and a power source, the position, work number, work period, isolation type representing the isolation status, work content, and the like are associated and stored. In addition, although not shown, the system configuration data stores the connection status and position information of each work target facility, the average travel time, and the like.

  The worker 5 carries the PDA 6 storing the necessary valve 2 data and the issued isolation tag 31 </ b> A and follows the priority order data to the first valve 2 to be isolated this time. When the valve 2 comes close to the corresponding valve 2, the valve name plate 21A is visually confirmed, the data from the IC chip 22 of the valve name plate 21A is read by the PDA 6, visually confirmed by the display of the PDA 6, and the valve to be checked. It is determined automatically by comparing the valve data in the PDA 6 with the valve data of the IC chip 32. If the two data do not match, an alarm is displayed from the PDA 6.

  After this confirmation, the operator performs necessary operations on the valve 2, confirms the isolation tag 31A of the corresponding valve that has been carried with printed characters, and attaches it to the valve. Then, the content of the IC chip 32 of the isolation tag 31A is read again by the PDA 6, and collation between the display device of the PDA 6 and the valve data is executed. When there is a mismatch, an alarm is displayed on the PDA 6.

  Finally, the fact that the work on the valve is completed is input to the PDA 6 and notified to the work management system 3 via the local LAN. When this completion is notified, the system configuration management system 4A displays the navigation to the next valve on the display of the PDA 6, and the worker goes to the valve for the next inspection work according to the instruction, and the above-described valve inspection processing is performed. repeat. When the work of all the valves to be inspected is completed, a message to that effect is input from the PDA 6 and notified to the work management system 3.

  FIG. 4 illustrates a procedure for determining the priority order for navigation, taking as an example the work at the time of system configuration restoration after inspection work. First, the valve number of the current position and the current location are input to the PDA 6 (S101). This input may be performed manually by an operator, or the valve name plate is provided with an IC chip storing identification information of the name plate, and the valve position is specified by reading the information of the IC chip by the PDA 6. Anyway.

  Then, the valve information input from the system configuration data 7a and the work management data 7b of the file management system 7 is acquired, and it is checked whether or not this valve is working (S102). If it is not in operation (“YES” in S102), it is next determined whether or not it is an isolation valve. If it is not an isolation valve (“YES” in S103), the system configuration information is input to the file management system 7. (S104) After that, it is determined whether or not the system configuration other than the isolation valve is completed (S105). If it is completed, it is terminated. If it is not completed, the system configuration management system 4A is closest to the current location. A valve other than the isolation valve is selected and transmitted to the PDA 6 (S109), and the process proceeds to step S102.

  On the other hand, when the work is being performed in step S102, the work management system 3 displays the work status such as the isolation state and the work period on the display device of the PDA 6 (S106), and the system configuration management system 4A also displays the closest valve from the current location. Then, a valve other than the isolation valve is selected (S107), and the process proceeds to step S102.

  If “NO” in the step S103, it is determined whether or not the system configuration other than the isolation valve is completed (S108). If completed (“YES” in the S108), the system configuration information is obtained in a step S104. If the input has not been completed ("NO" in S108), the process proceeds to step S109. The above processing is continued until the system configuration other than the isolation valve is completed.

  As described above, according to the present embodiment, the worker who performs the valve inspection work carries the portable terminal, so that the information on the work management system, the system configuration management system, and the IC chip to which the valve nameplate and the isolation tag are attached are stored. By giving and receiving, it becomes possible to perform the valve inspection work efficiently and without mistakes. In particular, both systems 3 and 4A totally manage the isolation work before the inspection work and the system configuration restoration work after the inspection work, calculate the optimal movement route for each work, and give instructions to the operator. Can be carried out smoothly and reliably.

Moreover, since data is managed with electronic data, data processing becomes easy. For example, it is possible to efficiently perform an unexecuted part search, arbitrary search, form creation, and the like. Furthermore, even if the isolation tag is lost, the state of the valve / power supply (during isolation, system configuration implementation status) can be easily confirmed on the mobile terminal.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in FIG. 1, the file management system 7, the system configuration management system 4 </ b> A, and the work management system 3 are configured independently and connected via a LAN. However, these systems are not independent and are integrated as one unit. It may be realized by a computer or may be realized by arbitrarily distributing functions.

  The present invention can be used for work for maintenance and inspection of industrial facilities.

1 is a configuration diagram of a valve inspection support system according to a first embodiment of the present invention. It is explanatory drawing of the work procedure by embodiment of this invention. It is a data flow chart of the valve inspection support system of FIG. It is a flowchart which shows the process sequence of the priority determination means of the valve check assistance system of FIG. It is a structural example of the database of the valve check assistance system of FIG. It is a functional block diagram of the conventional valve inspection system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reactor 2 Valve 3 Work management system 4 System configuration ledger 4A System configuration management system 5 Worker 6 Mobile terminal 7 File management system 7a System configuration data 7b Work management data 10 Valve inspection support system 21, 21A Valve nameplate 31, 31A Isolation Tag 22, 32 IC chip

Claims (1)

A database for storing system configuration data including position information of work target equipment including a valve and a power source for isolating work points in piping inspection / maintenance work, and a work status data of the work target equipment, and the work status data An operation management system for determining an isolation state based on whether or not it is within an isolation valve or an isolation range, a system configuration management system that creates a work plan based on the isolation state and the system configuration data, and the isolation state An isolation tag equipped with an IC chip that stores information, and a portable terminal that is carried by an operator and acquires the isolation state stored in the isolation tag and transmits work status data. during inspection and maintenance work, perform opening and closing operation of the valve corresponding to the piping that is isolated from the operation, the inspection work after the mounting to the valve isolation tags A valve inspection support system for assistance,
The work management system comprises means for updating work status data stored in the database based on work status data sent from the mobile terminal,
The system configuration management system acquires identification information and a current location of a valve input via the portable terminal, determines whether the valve is working based on the work status data, and, as a result of the determination, is working for both sending quarantine and working conditions by the working management system to the mobile terminal, select the valve other than the isolation valve at the nearest valve from the current position, while transmitting to the portable terminal, the result of the determination When not in operation, it is determined whether or not the valve is other than an isolation valve. If the valve is not an isolation valve, the system configuration data related to the valve is input to the database, and in the case of an isolation valve, it is immediately closest to the current location. A priority order judging means for selecting a valve other than the isolation valve by the valve and transmitting the selected valve to the portable terminal;
The mobile terminal compares the isolation state sent from the work management system with the isolation state stored in the isolation tag, and displays the verification result on the mobile terminal. Valve check support system.