JPS648317B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a system for managing the operating status of equipment installed in a nuclear power generation facility.

The equipment installed in nuclear power generation facilities is extremely diverse and reaches an enormous amount. Among these devices, important devices are centrally managed and operated from a central control room installed in the reactor auxiliary building. However, equipment of low importance or equipment that is operated infrequently, such as equipment that is only used during maintenance and inspection, is now operated on site. For this reason, in order to manage the operating status of such equipment, operators have traditionally gone around each piece of equipment and checked the operating status of each piece of equipment using checklists, etc., before operating the reactor. Ta. However, among such devices of low importance and devices that are operated infrequently, the number of manually operated on-off valves alone reaches about 10,000, placing an extremely heavy burden on the operators. In order to reduce the burden on operators, it may be possible to attach limit switches, valve opening transmitters, etc. to the on-off valves so that they can be centrally managed from the central control room. In this case, it was necessary to modify a large number of on-off valves, and a cable was required to connect these on-off valves to the central control room. Furthermore, since many of the on-off valves are relatively small, it is structurally difficult to attach the limit switch, opening transmitter, etc., and it is also difficult to implement from the viewpoint of cost.

This invention was made based on the above circumstances, and its purpose is to easily change the operating state of the above-mentioned equipment without requiring major modification of equipment operated on site or addition of cables. An object of the present invention is to provide an operation management system for equipment in nuclear power generation facilities that can be managed.

An embodiment of the present invention will be described below based on the drawings.

In the figure, 1... is equipment installed in the nuclear power generation facility, such as manual on-off valves, and these on-off valves 1... are opened and closed by operating handles 2... on site. ing. These on-off valves 1 are provided at predetermined positions in various pipings 3, and are used to change the direction of flow of fluids such as water, steam, gas, and air flowing into these pipings 3, and to control the flow rate and flow rate of these fluids. It controls pressure etc. A bill-shaped device recognition display section 4 is attached to each of the on-off valves 1. These device recognition display sections 4 display the type and symbol of the device, for example, if the device is an on-off valve 1 like in this embodiment, "what on-off valve and what number". In this embodiment, for example, magnetic plates 5 are attached to each device recognition display section 4, and "model" and "device number" are encoded and magnetically recorded on these magnetic plates 5. In addition,
Conventionally, on-off valve 1... has a "model" and "equipment number".
This is indicated by a stamp or the like. In addition, each of the on-off valves 1... has an equipment operation display section 6...
is provided. These device operation display sections 6... display the operating state of the on-off valve 1..., for example, whether the on-off valve 1 is in the "open" state or the "closed" state. In the embodiment, a magnetic sheet 8 is wrapped around the valve shaft 7 of the on-off valve 1. When the valve shaft 7 is rotated by the handle 2 to open and close the on-off valve 1, the magnetic sheet 8 is shown in the "open" state and "closed" state of the on-off valve 1.
The state is encoded and magnetically recorded so as to be displayed on the magnetic sheet 8 at the position of the index 9 according to the rotation of the valve shaft 7, that is, the magnetic sheet 8.

10 is a reader, and this reader 1
By touching the magnetic plate 5 and the magnetic sheet 8, the data recorded on the magnetic plate 5 and the magnetic sheet 8 can be read. Further, 11 is a recorder, and this recorder 11 can record data read by the reader 10 onto a magnetic tape 12.

Furthermore, the reader 10 and the recorder 11 are portable, and can be carried by nuclear power plant operators or the like by hanging them from their shoulders.

The data recorded on the magnetic tape 12 of the recorder 11 is input to a management processing mechanism 13 and processed by the management processing mechanism 13. That is, the management processing mechanism 13 includes, for example, a signal converter 14, an analyzer 15, a display device such as a display 16 and a printer 17, a keyboard 18, and the like. Above signal converter 1
4 is configured to convert the data recorded on the magnetic tape 12 into an electrical signal and output it to the analyzer 15. This analyzer 15 uses the electrical signals to collect data such as the "model", "equipment number", and operating status of "open" and "close" of the on-off valves 1 into the cooling system and water supply system of the nuclear power generation facility. It has a function to analyze and record the relationship between each subsystem such as, the relationship with major equipment, the classification of each area by building, and the relationship with the operating mode of the reactor. In addition, the signal converter 14 and the analyzer 15 have pre-recorded setting data indicating the desired operating state of the on-off valve 1 for the above-mentioned operation mode and isolation of each area, and compare the above-mentioned data with this setting data. It also has an arithmetic function that performs arithmetic processing. The keyboard 18 is used to designate each of the above categories and operation modes and input the designated signals to the signal converter 14 and analyzer 15, and the display 16 and printer 17 are processed based on the designated signals. The output from the analyzed analyzer 15 is displayed.
Further, the output from the analyzer 15 is input to an operation control computer 19 in the central control room and processed, thereby controlling the operation of the nuclear reactor.

Next, the operation of an embodiment with such a configuration will be explained.

First, before operating the reactor, the operator carries the reader 10 and the recorder 11 and checks the full open/close valve 1.
... and touch each magnetic plate 5 ... and magnetic sheet 8 ... of the opening/closing valve 1 ... of the reader 10 to check the "model" displayed on these magnetic plates 5 ... and magnetic sheet 8 ... Data such as "equipment number" and operating status of "valve open" and "valve closed" are read, and this data is transferred to the magnetic tape 1 of the recorder 11.
Record in 2. Then, this magnetic tape 12 is applied to the signal converter 14 to convert it into an electrical signal, and then stored in the analyzer 15. This analyzer 15 collects the above data for each subsystem of the nuclear equipment.
The relationship with major equipment, classification of each area, etc., and relationship with operation mode are analyzed and recorded. When the operator operates the keyboard 18 and inputs the designated signal for each category into the signal converter 14 and analyzer 15, the data for each category is output to the display 16 and printer 17 to notify the operator. . When the specified signal is input after changing the operation mode, the data is compared with the setting data pre-recorded in the signal converter 14 and the analyzer 15, and if there is a difference between these data. Sometimes these differences are displayed on the display 16 and printer 17 to inform the operator. Further, differences between the above data are input to the operation control computer 19 in the central control room, and abnormalities in equipment and systems are output and notified to operators.

In addition, if you specify an area necessary for repairing major equipment such as cooling water pumps and water supply pumps in the cooling system and water supply system using the keyboard 18, a list of on-off valves 1 necessary to isolate this area will be displayed on the display. 16 and printer 17, and informs the operator of this list.

Therefore, according to such an embodiment, the "model", "equipment number", and "valve opening" of the on-off valve 1...
Since data such as the operating state of "valve closed" can be automatically read by the reader 10 and recorded in the recorder 11,
Compared to the conventional method in which an operator checks the above data by referring to a check list or the like, it is possible to prevent omissions in checking this data and speed up the collection of the above data.
Therefore, the time required for visiting the on-off valves 1 can be shortened, and the burden on the operator can be significantly reduced. Moreover, since the above-mentioned patrol time is shortened, the amount of radiation exposure of the operator can be reduced.
Such effects can be obtained by simply providing the device recognition display section 4 and the device operation display section 6 in the on-off valve 1 without making any major modifications or adding cables to the on-off valve 1. Therefore, an inexpensive device can be obtained. moreover,
The data recorded on the magnetic tape 12 of the recorder 11 is directly applied to the signal converter 14 and recorded on the analyzer 15, and is also displayed on the display 16 or printer 17 via the keyboard 18. The management of... will become easier and more reliable.

Note that the present invention is not limited to such one embodiment. For example, the equipment is not limited to an on-off valve, but may be other equipment operated on site. Further, although this embodiment shows a method of magnetically reading the data of the on-off valve, a method of reading it optically may also be used.

As explained above, the present invention provides a device with a device recognition display section and a device operation display section, reads the device data displayed on the device recognition display section and the device operation display section with a reader, and records it in a recorder. The present invention is characterized in that this data is processed by the device's management processing mechanism. Therefore, since the equipment data to be collected is collected using a reader and a recorder, compared to the conventional method in which operators collect the above data by referring to checklists, etc., the above data is much easier to collect. Not only can omissions in checks be prevented, but also the time required for visiting the above-mentioned devices in collecting this data can be significantly shortened. As a result, the burden on operators can be significantly reduced, and the amount of radiation exposure of operators can also be reduced.
The effect is great. In addition, the above management processing mechanism is
It not only records and displays the operating status of the equipment, but also diagnoses the operating status of the equipment at that time by comparing input data and pre-recorded data that corresponds to the operating mode, etc. at that time. ,
Since this is recorded and displayed, abnormalities in the equipment can be detected early.

[Brief explanation of the drawing]

The drawing is a schematic diagram of an apparatus showing an embodiment of the present invention. 1... Opening/closing valve (equipment), 4... Equipment recognition display section, 6
...Equipment operation display unit, 10...Reader, 11...Recorder, 13...Management processing mechanism.

Claims (1)

[Claims] 1. A large number of devices installed at predetermined positions in nuclear power generation facilities, device recognition display units attached to each of these devices that display identification symbols that identify each device, and device recognition display sections that are attached to each of these devices and display identification symbols that identify each device. a device operation display section that displays the operating status according to changes in the operating state of the device; a portable reader that reads the data displayed on the device recognition display section and the device operation display section; and the data read by the reader. A portable recorder is used to record the data, and the data recorded in this recorder is input, and this data is processed, recorded, and displayed. 1. An operation management system for equipment in a nuclear power generation facility, comprising a management processing mechanism that diagnoses, records, and displays the operating state of the equipment by comparing and calculating with corresponding setting data.