JPH1195829A - Illuminating switch for operation guide system and console panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To complete a stop procedure or emergency countermeasure procedure in dealing with accident by previously simulating an insertion procedure by the operation guide system by a computer and sequentially illuminating switches on the panel according to the procedure. SOLUTION: Operation data on the actuation and stop of a nuclear reactor are inputted from an input device 5 to an arithmetic processing 1. Illuminating switches 7 are installed on the input device 5 and the insertion procedure is previously simulated by the computer to turn on the illuminating switches 7 according to the operation data inputted to the arithmetic processing 1 by following the insertion procedure. Namely, the operation data are processed by the arithmetic processing 1, the result of the arithmetic operation is supplied to a storage device 2, and illumination data as part of the operation data are transmitted to the illuminating switches 7 from an operation procedure process part 1b according to operation conditions and environment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel of a central operation room of a nuclear power plant or a thermal power plant, and more particularly to an operation switch or a push button of an operation panel for controlling operation of a nuclear reactor or the like.

[0002]

2. Description of the Related Art Conventionally, in the operation of a nuclear reactor in a central control room of a nuclear power plant, operations such as control rod insertion and withdrawal are performed by operating buttons or switches on a panel.
In addition, in order to change the reactor water output by changing the cooling water amount of the reactor, the rotation speed control of the recirculation water pump or the internal pump has been performed by operating the operation switch on the panel. Similarly, in the case of emergency, the operator operates the switches sequentially by hand according to a predetermined operation procedure.

A patent closest to the present invention is disclosed in Japanese Patent Application Laid-Open No. 3-257.
No. 509, entitled "Plant operation device and display method thereof". When a new operator performs a driving operation while looking at the manual, the operating information is displayed on a display device provided with a predetermined operation procedure from step to step, and the new operator operates according to the displayed contents. The way to do was taken.

Further, as disclosed in Japanese Patent Application Laid-Open No. 59-31276, "Elevator Monitoring Apparatus", there is provided a CRT for displaying operation guidance data, a memory, operation contents to be operated by a staff member, and an operation procedure. The operation procedure corresponding to the occurrence event of CR is performed using the same model as the key switch on the operation console.
It was done by the method of displaying on T.

However, these methods are disadvantageous in that the operating procedure and the next switch to be operated are neglected in an inoperable state such as in an emergency or when the operator is upset due to an accident. was there.

[0006]

The past trouble cases of a nuclear power plant are caused by an operation error of an operator. In particular, there are many operation mistakes in an emergency. After the equipment failure occurred, the operator was confused by the response and the processing was delayed, leading to an increase in accidents. In addition, there are many cases of human troubles, such as the case where the emergency operation was mistaken and the reactor was runaway, as in the case of the Chernobeli power plant RBMK reactor.

When an emergency occurs due to an accident, the operator is required to investigate the cause of the accident and respond to the accident. Therefore, it is necessary to perform an operation to stop the reactor at an accurate step at an early stage.

An object of the present invention is to provide a system in which a lamp or a light emitting element attached to a switch is illuminated in advance according to an operation procedure by an operation simulation system using a computer when an accident is dealt with, and an operator sequentially operates the illuminated switch. To provide for completing a shutdown procedure or an emergency response procedure.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is characterized in that, for example, in-core instrumentation for controlling the power of a nuclear reactor is used to measure a neutron density in a core in a horizontal direction. The neutron density is measured at high, medium and low levels in the longitudinal section of the core.
An increase in the number of neutrons is associated with an increase in the reactor's thermal output, and an increase in thermal energy is associated with an increase in turbine speed and an increase in generator output. Therefore, if the treatment of the instrumentation data is simulated in advance by a computer, the position of the control rod can be changed from these data in a direction to stabilize the reactor or in a direction to stop the reactor, This is achieved by causing the operator to operate the lighted switch as instructed by sequentially illuminating the switches for operating the switch.

That is, in the nuclear reactor, the neutron multiplication coefficient changes depending on the insertion position of the control rod for absorbing neutrons and the flow rate of the cooling water. Further, the operation position is adjusted according to the power level of the reactor, whether to operate at the average power density of the reactor or to operate at the local area power density, by inserting 120 control rods (BWR 1100 MW class). This insertion procedure is performed by computer simulation in advance, and the switches on the panel are sequentially lit according to the procedure. For example, in the case of a primary system pipe breakage accident, it is possible to show the operator the procedure leading to the shutdown of the reactor and the stoppage of the auxiliary equipment without confusion or panic.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings.

FIG. 1 shows an embodiment of a system configuration of an optical switch and an operation panel by an operation guide system according to the present invention. The overall system configuration includes an arithmetic processing unit 1, a storage device 2, a measurement data storage device 3, an automatic measurement data input device 4 from a nuclear reactor, an input device 5, a display device 6, and a luminous operation switch 7. The operation data of the start / stop of the reactor is input from the input device 5, and the arithmetic processing 1 includes an arithmetic unit 1a, an operation processing procedure storage unit 1b, an input unit 1c, a display image display data processing, It comprises a switch light emission information processing section 1d and an automatic measurement data processing section 1e. The light emission information of the glowing switch 7 installed in the input device 5 is transmitted from the switch light emission information processing unit 1d.

FIG. 2 shows an embodiment of the main control room of a nuclear reactor plant, and shows the overall equipment configuration of the present invention.
It comprises a display monitor large screen 8, an output meter 9, a central operation panel 12, and various operation switches 10.

FIG. 3 shows a partially enlarged view of the board. The switch 7 is provided with a small lamp 13a or a light emitting element 13b.
13a or the point type light emitting element 13b emits light.

FIG. 4 shows the structure of the light-emitting portion of the switch 7. The case where the entire switch 7 shines, the case where the band 13a above the switch 7 shines, and the upper central portion 13b of the switch are dotted. It shows the case where it shines.

FIG. 5 shows a flow from the start of a trouble event to a reduction in reactor power or a shutdown. Hereinafter, an example of the overall system operation of the present invention will be described from an example of a primary system pipe breakage accident.

In step 1, if the primary piping in the containment vessel breaks due to some trouble, the reactor cooling water in step 2 is lost. As a result, the cooling water level inside the reactor decreases, and the ability to cool the nuclear thermal reaction inside the reactor decreases, so that the temperature inside the reactor in step 3 sharply increases.

Since the in-furnace measurement data (temperature, water level, neutron density, etc.) is managed as operation data,
As a result of the processing performed by the arithmetic processing unit 1 in FIG. 1, appropriate operation data is provided to the storage device 2, and the operation procedure processing unit 1 b sends a part of the operation data to the switch light emission information processing unit 1 d according to the operation conditions and environment. By transmitting the light emission data, it is possible to transmit a signal for causing the optical switch 7 of the input device 5 to emit light in accordance with the operating procedure (step 5).
Switch emission).

When the operator completes the operation according to the procedure of the illuminated switch, the nuclear characteristics inside the reactor change, and the automatic measurement data is input to the arithmetic processing unit 1. By processing and repeating such operations in a short time, the reactor can lead to a proper reduction in power or a shutdown of the reactor.

[0020]

According to the present invention, in the event of a sudden trouble or accident during the operation of the reactor, even a trained operator or a relatively inexperienced operator can perform the pressing operation sequentially according to the operation procedure of the illuminated switch, thereby improving the reactor. It can be provided for steady state or for a reasonable and safe shutdown.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an illuminated switch and an operation panel in an operation guide system of the present invention.

FIG. 2 is an overall equipment configuration diagram shown in an embodiment of a reactor plant central control room.

FIG. 3 is a partially enlarged view of the operation panel shown in FIG. 2;

FIG. 4 is a detailed view of a switch light emitting unit according to the present invention.

FIG. 5 is a diagram showing a flow from the occurrence of a reactor trouble to the use of the glowing switch and operation panel of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 arithmetic processing device, 2 storage device, 3 measurement data storage device, 4 automatic measurement data input device, 5 input device, 6
... display device, 7 ... light switch, 8 ... display monitor large screen, 9 ... output meter, 10 ... switches, 11 ... central control panel, 12 ... rotary switch, 13a ... small lamp, 13b ... point type light emitting element.

Claims (4)

[Claims] An electronic computer comprising one or more display devices, a first storage device storing operation data, an arithmetic processing device, and a second storage device storing an operation procedure called and executed from the arithmetic processing device. In a driving operation panel having a configuration, when a failure or an emergency operation is performed, a switch on the operation panel blinks according to the procedure of the operation guide system, and the next switch blinks as soon as the switch operation is completed. An illuminated switch and an operation panel in an operation guide system, wherein the operation can be performed without thinking. 2. The flashing speed of the switch according to claim 1, wherein when an emergency response is required such as in an accident, the blinking speed of the switch is high.
A glowing switch and operation panel in an operation guide system, wherein a blinking speed is slow for the purpose of notifying an operator of a position of a switch to be operated in an emergency. 3. The color of a switch (for example, red) that needs to be operated when an emergency response is required, such as in an accident, and the light of a switch that is operated next. A switch and an operation panel in an operation guide system, characterized in that the operation guide system is characterized by differentiating colors (for example, green) and emitting light. 4. The reactor according to claim 1, wherein the operator completes the operation of the flashing switch on the operation panel to stop the reactor or to operate the emergency target equipment. A switch and operation panel in an operation guide system, wherein the switch and the operation panel are lit.