JPH0749396A - Plant state display system - Google Patents

Abstract

PURPOSE:To provide a plant state display equipped with an operator supporting function for facilitating the comprehension of the operating state of plant, the temperature relationship between machines, heat balance, etc., and providing a processing guide upon occurrence of abnormality in the plant. CONSTITUTION:The plant state display system comprises a process data input section 1, heat balance symbol generating section 2 for symbolizing the process data, a heat balance symbol display section 3, a symbol pattern memory section 4 for abnormal pattern data, an abnormality processing guide memory section 5, a symbol pattern deciding section 6 outputting a pattern recognition through comparison between a heat balance symbol data and an abnormal pattern data, identification results of the type of abnormality corresponding to a current heat balance symbol type pattern at the time of abnormality, and a processing guide for an identified abnormality, and a processing guide display section 7 for displaying these outputs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for monitoring the operating state of a plant such as a nuclear power plant, and particularly displays the temperature and flow rate of the main cooling system symbolically and displaying them on an image to display the plant of the operator. The present invention relates to a plant status display device that makes it easy to grasp the status.

[0002]

2. Description of the Related Art For example, in the monitoring of the operating state of a conventional nuclear power plant, plant data such as temperature and flow rate measured at each measuring point of the plant are displayed on an instrument on a central control panel installed in a central control room. Alternatively, the plant data is input to the computer and displayed on the CRT screen.

In the plant currently under development,
Display plant data on the CRT screen on the central control panel, or install a large display panel with a system diagram display in the central control room, and display the main parameters on the system diagram as numerical values or bar charts. Provides the operator with plant status.

The display method on the CRT screen includes a method of listing measurement point names and measurement values, and a method of numerically displaying a main parameter on a system diagram displayed on a graphic screen or a bar chart graphically. In addition, there is a method of displaying data as a time-series graph in a trend, and the screens automatically selected from some prepared screens or screens selected by an operator's operation are displayed.

[0005]

However, for example, in safely operating a nuclear power plant, it is important that all operators in the central control room can quickly grasp the condition and heat balance of the entire plant at a glance. Yes, depending on the current plant status display method, most of them are only for displaying numerical data, or even when a bar chart or time series graph is graphically displayed on a CRT screen or the like, they are individually displayed for each measurement point. Therefore, it was difficult to quickly grasp the situation and heat balance of the entire plant.

Further, it is difficult to notify all operators in the central control room of the status of the plant at the same time on the instrument display and the CRT display. Since it is carried out according to the operation manual in case of abnormality or the instruction of a skilled driving person, there was a hindrance to the emergency response operation.

An object of the present invention is to provide a support function to an operator for easily grasping a plant operating condition, a temperature relation between respective devices, a heat balance and the like, and providing a treatment guide for recovery or the like when the plant is abnormal. The present invention is to provide a plant status display device.

[0008]

A plant status display device for achieving the above object comprises a process data input section for inputting process data, a heat balance symbol creating section for processing process data into a symbol, and a heat balance symbol creating section. A balance symbol display unit, a symbol pattern storage unit that stores abnormal pattern data, and a treatment guide storage unit that stores treatment guides for abnormality recovery and the like are provided.

Further, pattern recognition is performed by comparing the symbolized heat balance symbol data with the abnormal pattern data, and when the result is determined to be abnormal, the type of abnormality is identified according to the current heat balance symbol shape pattern. It is characterized by comprising a symbol pattern determination unit that outputs a treatment guide for the result and the identified abnormality, and a treatment guide display unit that displays the output of the symbol pattern determination unit.

[0010]

In the present invention, for example, when grasping the heat balance of a nuclear power plant, it is possible to understand the heat inflow and outflow in the main reactor, heat exchanger, and cooler by symbolizing for each cooling system by the heat balance symbol creating section The symbol pattern determination unit compares the abnormal pattern data stored in the symbol pattern storage unit with the abnormal pattern data.

As a result, when the plant condition is abnormal, the type of abnormality is identified, and the treatment guide display unit displays an image of the treatment guide for the abnormality in the treatment guide storage unit to provide driving assistance to the operator. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. As shown in the block configuration diagram of FIG. 1, a plant status display device displays a process data input unit 1 for inputting process data of a plant, a heat balance symbol creation unit 2 for processing process data into symbols, and a heat balance symbol creation unit 2 for displaying the process data. Heat balance symbol display unit 3, a symbol pattern storage unit 4 that stores abnormality pattern data for each type of abnormality that is assumed in advance, and a treatment guide storage unit 5 that stores a treatment guide for recovery or the like for each type of abnormality that is estimated in advance. To provide.

Further, the pattern recognition is performed by comparing the heat balance symbol data created by the heat balance symbol creation unit with the abnormal pattern data in the symbol pattern storage unit 4, and when the result of this determination is determined to be abnormal. A symbol pattern determination unit 6 that outputs an identification result of an abnormality type according to the current heat balance symbol shape pattern, and draws out a treatment guide for recovery or the like for the relevant abnormality from the treatment guide storage unit 5, and this symbol pattern determination unit It is configured by a treatment guide display unit 7 including a CRT or a graphic panel for displaying the output of 6 to assist the driver in driving operation.

As shown in the layout of FIG. 2, the plant status is displayed on a large display device 10 which is a treatment guide display unit 7 installed behind the central control panel 9 of the central control room 8. Therefore, all the operators in the main control room 8 can easily grasp the situation of the entire plant at a glance, including the shift chief sitting on the shift chair 11.

Next, the operation of the above configuration will be described. As shown in FIG. 1, the process data input unit 1 inputs the process data from the plant and transfers it to the heat balance symbol creation unit 2, and the heat balance symbol creation unit 2 performs symbolization processing and heat balance. It is displayed on the symbol display unit 3.

The heat balance symbol data created by the heat balance symbol creating section 2 is input to the symbol pattern judging section 6, and the symbol pattern judging section 6 stores the symbol pattern according to a previously assumed abnormality type. Pattern recognition is performed by comparison with the abnormal pattern data stored in the unit 4.

At this time, if it is determined to be abnormal, the result of identification of the type of abnormality according to the current heat balance symbol shape pattern and the treatment guide for this abnormality are stored in the treatment guide storage unit 5.
It is further pulled out and automatically output to the treatment guide display unit 7 to display an image. As a result, the condition of the entire plant can be grasped at a glance, so that the safety and reliability of the operation of the plant can be further enhanced.

Large display device 10 installed in the central control room 8
The display image in is displayed as in the system image example diagram of the main system of the fast reactor in FIG. That is, the coolant of the primary main cooling system 13 heated by the nuclear reactor 12 exchanges heat with the coolant of the secondary main cooling system 15 in the intermediate heat exchanger 14, and is cooled by the primary main circulation pump 16. Returned to the nuclear reactor 12.

The coolant of the secondary main cooling system 15 heated by cooling the coolant of the primary main cooling system 13 by the intermediate heat exchanger 14 is cooled by the cooler 17 and the blower 18, and the secondary main circulation. It is returned to the intermediate heat exchanger 14 by the pump 19. On this systematic image, a temperature scale 20 is provided vertically at the position of each device so that the same temperature is obtained when the height on the image is the same, and the heat balance is symbolized on the temperature scale 20.
22 and display.

Primary main cooling system heat balance symbol 21
Is the primary main cooling system reactor inlet temperature 23, the primary main cooling system reactor outlet temperature 24, the primary main cooling system intermediate heat exchanger inlet temperature 25,
It is expressed as a quadrangle having four points of the primary main cooling system intermediate heat exchanger outlet temperature 26 as vertices, and is displayed on the temperature scale 20 of the system image.

Similarly, the secondary main cooling system heat balance symbol 22 has a secondary main cooling system intermediate heat exchanger inlet temperature 27, a secondary main cooling system intermediate heat exchanger outlet temperature 28, and a secondary main cooling system cooler inlet. The temperature scale of the system image is expressed as a quadrangle with four points of temperature 29, secondary main cooling system cooler outlet temperature 30 as vertices.
Displayed on 20.

The heat balance symbols 21, 22
Has a function of changing color according to the flow rate, and the mutual temperature difference is displayed by the inclination angle. In addition, the primary main cooling system flow rate and 2
The ratios of the secondary main cooling system flow rate to the rated flow rate are shown by flow rate display bar charts 31 and 32, respectively.

Further, the main data of the main cooling system is shown on the system image as the primary main cooling system as the primary main cooling system reactor inlet temperature 33, the primary main cooling system reactor outlet temperature 34, and the primary main cooling system. The cooling system intermediate heat exchanger inlet temperature 35, the primary main cooling system intermediate heat exchanger outlet temperature 36, and the primary main cooling system flow rate 37 are displayed numerically.

As the secondary main cooling system, the secondary main cooling system intermediate heat exchanger inlet temperature 38, the secondary main cooling system intermediate heat exchanger outlet temperature 39, the secondary main cooling system cooler inlet temperature 40, 2 The secondary main cooling system cooler outlet temperature 41 and the secondary main cooling system flow rate 42 are displayed numerically. Furthermore, the primary main circulation pump rotation speed 43, the secondary main circulation pump rotation speed 44, etc. are also displayed numerically.

According to the invention, the heat balance symbol
The shapes and colors of 21 and 22 change according to the state of the plant, and since the heat balance symbols 21 and 22 of each system are displayed on the same temperature axis, the shape and color of the symbols,
By the display position, in addition to the state of each system, the temperature balance between the systems, the flow rate balance, and the like, the treatment guide corresponding to the abnormality that has occurred can be easily grasped by all the operators in the main control room 8. .

The systematic image example diagram of FIG. 4 shows a modified example, in which the heat balance symbol is represented by a bar chart. The coolant in the primary main cooling system 13 heated by the nuclear reactor 12 exchanges heat with the coolant in the secondary main cooling system 15 in the intermediate heat exchanger 14 and is cooled, and the primary main circulation pump 16 cools the reactor. 12
Returned to. Further, the intermediate heat exchanger 14 cools the coolant of the primary main cooling system 13, and the heated coolant of the secondary main cooling system 15 is cooled by the cooler 17 and the blower 18 to be cooled by the secondary main circulation pump. It is returned to the intermediate heat exchanger 14 by 19.

The reactor 12 is indicated by a temperature display bar chart 45 in which the reactor inlet temperature 23 of the primary main cooling system 13 is the lower limit and the reactor outlet temperature 24 is the upper limit. Similarly, in the intermediate heat exchanger 14, the primary main cooling system intermediate heat exchanger inlet temperature 25 and the primary main cooling system intermediate heat exchanger outlet temperature 26 are displayed on the temperature display bar chart 46.
, And the intermediate heat exchanger inlet temperature 27 and the intermediate heat exchanger outlet temperature 28 of the secondary main cooling system 15 are displayed on the temperature display bar chart 47.

Further, the cooler inlet temperature of the secondary main cooling system 15
29 and cooler outlet temperature 30 for one temperature display bar chart 48
Display at. In this case, all bar charts 4
Display 5, 46, 47 and 48 on the same temperature scale 20. The ratios of the primary main cooling system flow rate and the secondary main cooling system flow rate to the rated flow rate are also displayed on the flow rate display bar charts 31 and 32, respectively.

According to this modification, at the time of starting the plant, the temperature of the system is raised and the temperature display bar charts 45 and 4 respectively.
The temperature bar of 6, 47, 48 rises. Further, since the temperature axis of the temperature display bar charts 45, 46, 47, 48 is the same in all the devices, the closer the device is to the reactor 12, the higher the temperature is, and therefore the temperature bar is displayed at a high position. As described above, the operating condition, the temperature relationship between the devices, and the heat balance can be easily grasped by the operator only by looking at the temperature display bar charts 45, 46, 47, 48.

Although not shown in FIGS. 3 and 4, the display image of the treatment guide for the above-mentioned abnormality recovery and the like is not shown in either of FIGS.
Or you can change the color of the numerical value to make it easier to confirm, and the action guide for recovery from an abnormality is displayed in the outer column of the system image diagram. Support is provided.

[0031]

As described above, according to the present invention, when the plant condition is monitored, the condition of the plant is symbolized, and the shape of the symbol is automatically changed according to the process amount such as temperature and flow rate. Improves visibility and recognizes the pattern by comparing it with the stored pattern, and automatically identifies the abnormality type identification result according to the current heat balance state symbol shape pattern and the treatment guide corresponding to the identified abnormality. Since it is displayed, there is an effect that a highly reliable plant operation can be performed by the operation support to the operator.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a plant status display device according to an embodiment of the present invention.

FIG. 2 is a layout diagram of a central control room according to an embodiment of the present invention.

FIG. 3 is a system image example diagram of one embodiment according to the present invention.

FIG. 4 is a diagram showing a systematic image example of a modified example according to the present invention.

[Explanation of symbols]

1 ... Process data input unit, 2 ... Heat balance symbol creation unit, 3 ... Heat balance symbol display unit, 4 ... Symbol pattern storage unit, 5 ... Treatment guide storage unit, 6 ... Symbol pattern determination unit, 7 ... Treatment guide display unit , 8 ... Central control room, 9 ... Central control panel, 10 ... Large display device, 11 ... Watch shift machine, 12 ... Reactor, 13 ... Primary main cooling system, 14 ... Intermediate heat exchanger, 15 ... Secondary main Cooling system, 16 ... Primary main circulation pump, 17 ... Cooler, 18 ... Blower, 19 ... Secondary main circulation pump, 20 ... Temperature scale, 21 ... Primary main cooling system heat balance symbol, 22
… Secondary main cooling system heat balance symbol, 23, 33… Primary main cooling system reactor inlet temperature, 24, 34… Primary main cooling system reactor outlet temperature, 25, 35… Primary main cooling system intermediate heat exchange Unit inlet temperature, 26, 36 ... Primary main cooling system intermediate heat exchanger outlet temperature, 27,
38 ... Secondary main cooling system intermediate heat exchanger inlet temperature, 28, 39 ... Secondary main cooling system intermediate heat exchanger outlet temperature, 29, 40 ... Secondary main cooling system cooler inlet temperature, 30, 41 ... Secondary Main cooling system cooler outlet temperature, 31, 32 ... Flow rate display bar chart, 37 ... Primary main cooling system flow rate, 42 ... Secondary main cooling system flow rate, 43 ... Primary main circulation pump speed, 44 ... Secondary main Circulation pump speed, 45, 46, 47, 48 ...
Temperature display bar chart.

Claims (1)

[Claims] 1. A display device for monitoring the state of a plant, including a process data input section for inputting process data, a heat balance symbol creating section for processing process data symbolization, and a heat balance symbol display section. The symbol pattern storage unit that stores the pattern data, the treatment guide storage unit that stores the treatment guide for abnormality recovery, and the pattern recognition by comparing the symbolized heat balance symbol data with the abnormal pattern data are performed. A symbol pattern determination unit that outputs an identification result of the type of abnormality according to the current heat balance symbol shape pattern and a treatment guide of the identified abnormality when it is determined to be abnormal, and a treatment that displays the output of this symbol pattern determination unit Plant characterized by a guide display Status display device.