JPH07141019A - Plant monitoring device - Google Patents

Abstract

PURPOSE:To speedily judge the conditions of a plant at a glance in terms of macro by simultaneously displaying measured values concerning respective measuring items and arithmetic values calculated based on these measured values on one screen of a CRT while dividing those values into the respective groups of production related information, security related information and product quality information. CONSTITUTION:An abnormal state detecting means 4 compares meter indicated values or arithmetic values fetched from a process computer 2 through a process data input means 3 with managing values in fixed cycles and outputs those values while classifying them into the three stages of a normal state, deviation abnormal state and alarm generating state. The data classified into the three stages are divided into the three groups of the production related information, security related information and product quality information by a data dividing means 5 based on a classification master. The divided data are displayed on one screen of the CRT by a data display means 6 based on a display master while being summarized by deviation bars concerning the respective data. Therefore, the conditions and tendency of the plant can be judged at a glance in terms of macro by the small number of operators.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device for managing the operating condition of a plant with a process computer, and more particularly to a plant overview displaying device for centrally displaying the condition of the plant during continuous operation on a CRT screen.

[0002]

2. Description of the Related Art In recent years, the operation of plants has become more sophisticated, and the operation of a small number of people has been advanced due to integration of instrument rooms. For this reason, the monitoring of plant operation has shifted from the conventional operation monitoring based on the panel display to the operation monitoring centering on the CRT console of the computer. An operator has also realized a system capable of monitoring the operating state of each device of the plant required in the operation of the CRT in each operation room without directly going to the central control room or the instrument room.

[0003]

However, in the conventional monitoring by the CRT display, it is specified that the detailed information of each item is viewed, the monitoring is performed for each device, and the equipment and the control instruments are operated. To see the whole picture comprehensively, look at multiple displays or CRT
The screen had to be expanded many times by the operation, which had the disadvantage of taking a lot of time. Since it takes a long time to grasp the whole, there is a problem that the next action or judgment cannot be performed promptly, and in the case of a large-scale plant, it is not possible to appropriately respond to the situation.

Therefore, the present invention is to provide a plant monitoring apparatus capable of quickly and macroscopically determining the condition of the plant at a glance and easily determining the next action.

Furthermore, the present invention can monitor individual data from the viewpoint of production, security, and quality, thereby making it possible to immediately determine which item should be focused on, and whether each item is normal or abnormal. An object of the present invention is to provide a plant monitoring device capable of easily visually recognizing whether or not it is in such a state.

[0006]

According to the present invention, in a plant monitoring apparatus that measures necessary measurement items of each process of a plant and centrally monitors these, the measured values of each measurement item and the calculated values are calculated based on the measured values. A plant having data dividing means for dividing the calculated values into production-related information, safety-related information, and product quality information groups, and a data display means for simultaneously displaying the information of each divided group on one screen of a CRT. A monitoring device is provided.

A plant monitoring apparatus according to one aspect of the present invention measures necessary measurement items for each process of a plant, and in a plant monitoring apparatus for centrally monitoring these, measured values for each measurement item and calculation based on the measured values. Data dividing means for dividing the calculated value into each group of production related information, safety related information and product quality information, data display means for simultaneously displaying the information of each divided group on one screen of the CRT, and the measured value Or, comparing an operation value calculated based on this with a preset control value, and classifying into three stages of normal, deviation abnormality and alarm generation, and when classifying into three stages by the abnormal state detection means And a simulation means for updating in real time the control value that becomes the reference of the production condition, and the data display means displays on the CRT screen. Individual measurements or calculation value deviation shown by a bar, and is adapted to display in different colors the respective display zone 3 stages classified by the abnormal state detection means to be.

[0008]

According to the present invention, the individual instrument readings and calculation data based on them, which are taken in from the process computer of the plant, are not displayed in the unit of equipment as in the prior art, but are divided into three elements of production / security / quality. Display
In addition, since this is collected on one screen and displayed side by side with three elements, the overall situation of the plant can be comprehensively judged. By using the deviation bar display in which the display means is color-coded into three stages of normal, caution, and alarm, it is possible to determine at a glance which item of the three elements is in what state.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a plant monitoring apparatus 10 according to an embodiment of the present invention. The target plant 1 in this embodiment is, for example, a nuclear power plant or a large-scale plant such as petroleum / chemical. A process computer 2 that manages the operation of the plant 1 detects process data (instruction values such as temperature, pressure, flow rate, and liquid level of the instrument) from the plant 1, and calculates process data based on the detected process data. Means, process operating means, and process adjusting means.

The plant monitoring apparatus 10 according to the present embodiment has a process data input means 3, an abnormal state detection means 4, a data classification means 5, a data display means 6, a control value data input means 7, and a master construction means 8. And control value / classification /
It has a display master 9 and a simulation means 11. First, the process data input means 3 has a function of fetching the process data and various calculated values based on the process data from the process computer 2 into the plant monitoring device 10 at a constant cycle (for example, 20 seconds).

The abnormal state detecting means 4 makes a fixed period (for example, 20) of the meter indicating value or the calculated value taken from the process computer 2 via the process data inputting means 3.
Second), it compares with the control value (reference value), and it detects whether the deviation (deviation) from the control value exceeds the allowable value and it is in the abnormal state of caution or warning. The detection result is classified into, for example, a normal state, an abnormal deviation state, and an alarm generation state, which will be described later, and has a function of outputting. Here, the normal state is a state in which the meter indication value or its calculated value is within a preset allowable management range. The alarm generation state is a state in which the meter indication value or its calculated value exceeds the alarm setting range. The deviation abnormality state means a state of caution that is within the alarm setting range and exceeds the allowable control range.

The data classified into three stages as described above is classified into three groups of production-related information, security-related information and product quality information by the following data classification means 5 based on the classification master. The production-related information includes important items as production conditions, at least the amount supplied to the reactor or the distillation column and the amount withdrawn from it. In addition, for example, utilities such as steam flow rate, reaction temperature, production rate and operation rate, polymerization rate, auxiliary agent concentration, reaction rate, catalyst activity, and other items related to production are included. Security-related information is an important item that affects explosions and environmental pollution,
At least the pressure and temperature of the reactor or the distillation column, and further, for example, the waste water PH, the concentration of impurities in the exhaust gas (NO _x ,
SO _x, etc.) are included. The quality-related information is analytical data that influences the quality and characteristics of the product or processed product obtained, or at least the analytical value of the processed product extracted from the reactor or the distillation column. Further, for example, product concentration, impurity concentration, auxiliary agent concentration, molecular weight, etc. are also included. Note that these classification items that are related to two or more classifications may be duplicated.

The data divided by the data dividing means 5 are collectively displayed on one screen of the CRT by the data display means 6 based on the display master by a deviation bar as shown in FIGS. It As shown in FIG. 2, an alarm setting upper limit value A, an alarm setting lower limit value B, and a control value upper and lower limit range C are set on the screen of the CRT for each instrument or each calculation data, and a bar display color-coded for each area is displayed. Is done. For example, as shown in FIG. 3, when the deviation bar is within the central control value upper and lower limit range C, it is determined that the corresponding meter indication value or calculated value is in a normal state, and the bar portion turns green (reference numeral 17 in FIG. 3). Is displayed. The deviation bar exceeds the control value upper and lower limit range C and the alarm setting upper and lower limit value A,
When it is in a region that does not exceed B, it is in an abnormal deviation state (state requiring attention) and is displayed, for example, in a yellow band (reference numeral 1 in FIG. 3).
2) In the alarm generation state in which the alarm setting upper and lower limit values A and B are exceeded, for example, a red band is displayed (reference numeral 13 in FIG. 3).

The production-related information, the security-related information, and the quality-related information, which are displayed by the color-coded deviation bars, are simultaneously displayed on one CRT screen as illustrated in FIG. In the figure, reference numeral 14 is a production-related display zone, 15 is a security-related display zone, and 16 is a quality display zone. The display zones, which are arranged in a plurality of columns for each classification information, are labeled with numbers corresponding to the measuring instruments to be detected. In the example of FIG. 4, two items are in the caution state in the quality display zone 16, and the meter indication values for other qualities are in the normal state. When it is desired to examine the contents in more detail, by selecting individual data, the trend graphs and the corresponding treatment guidance associated with each data can be developed in the CRT window.

In this embodiment, a simulation means 11 for changing the set control value is provided. By this simulation means 11, the process computer 2
Calculates the mass balance, heat balance, etc. in a fixed cycle from the instrument indicated value taken from the machine and the predefined physical model of the process, and with the change in the production rate, the control value, the reference value and its allowable value range Is updated in real time. Further, master data such as control values and reference values set in the master construction means 8 and data display positions and display classifications are managed by the operator 18 by the control value data input means 7.
Can be updated via.

[0016]

As described above, according to the present invention, individual meter indication values obtained by the process computer or calculation data based on the indication values are color-coded by the deviation bar into normal, deviation abnormality and alarm generation states. In addition to displaying each item, these data are grouped into three items related to production, security, and quality instead of the unit of equipment or device, and are aggregated and displayed on one CRT screen. Even in the case of a large-scale plant that handles, the situation and tendency of the plant can be macroscopically judged by a small number of operators, and the judgment for the next action can be made easily and quickly.

[Brief description of drawings]

FIG. 1 is a block diagram of a plant monitoring apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a display zone of a deviation bar for one meter indication value or calculation data.

FIG. 3 is a diagram showing deviation bar display zones of a plurality of meters in a certain information section.

FIG. 4 is a diagram showing an example of a CRT screen in which three data of production, security, and quality are displayed by a deviation bar.

[Explanation of Codes] 2 Process Computer 3 Process Data Input Means 4 Abnormal State Detection Means 5 Data Classification Means 6 Data Display Means 7 Management Value Data Input Means 8 Master Construction Means 9 Management Values / Classification / Display Masters 11 Simulation Means

Claims (4)

[Claims] 1. A required measurement item for each process of a plant is measured,
In a plant monitoring device that centrally monitors these, a measurement value for each measurement item and a calculation value calculated based on the measurement value are divided into production-related information, safety-related information, and product quality information by a data dividing means. , And a data display means for simultaneously displaying information of each divided group on one screen of a CRT. 2. The measured value or a calculated value calculated based on the measured value is compared with a preset control value, and an abnormal state detection means for classifying into three stages of normal, deviation abnormality and alarm generation is provided and classified. The plant monitoring apparatus according to claim 1, wherein the CRT is displayed on one screen of the CRT in a state. 3. The data display means displays each measured value or calculated value displayed on a CRT screen as a deviation bar, and each display zone is color-coded into three levels classified by the abnormal state detection means. The plant monitoring device according to claim 2, wherein the plant monitoring device is configured to be displayed. 4. A simulation means for updating a control value, which becomes a reference when the abnormal state detecting means is classified into three stages, in real time according to a production condition. The plant monitoring device described in the item.