JP2021105940A - Apparatus and system - Google Patents

Abstract

To provide an apparatus and a system which facilitate understanding what event occurs and facilitate knowing what countermeasure is necessary.SOLUTION: The present invention is directed to an apparatus having a display screen for displaying a state of a plant. The apparatus is configured so that a graph of first process data relating to the plant can be displayed in a first region R1 of a display screen DP2, and is configured so that an explanatory text relating to the first process data can be displayed in a second region R2 of the display screen DP2 adjacent to the first region R1.SELECTED DRAWING: Figure 5

Description

The present invention relates to devices and systems.

Conventionally, a sensor is installed in a plant and the operating status of the plant is monitored through the measured value of the sensor. For example, in Patent Document 1 below, the first process value exceeds the limit value by comparing the first process value acquired in time series from the first point of the monitoring target in the plant with the corresponding limit value. A plant monitoring device is described in which the time is determined and the first process value and the corresponding limit value within the time range determined based on the determined time are displayed on the display device in chronological order.

Japanese Unexamined Patent Publication No. 2016-115195

With the plant monitoring device described in Patent Document 1, the process value of the plant and the corresponding limit value can be confirmed, but simply displaying the numerical value does not correctly understand what kind of event is occurring. Or you may not immediately know how to deal with it.

Therefore, the present invention provides an apparatus and a system in which it is easy to understand what kind of event is occurring and what kind of response is necessary.

The apparatus according to one aspect of the present invention is an apparatus provided with a display screen for displaying the state of the plant, wherein a graph of first process data relating to the plant can be displayed in the first area of the display screen. An explanatory text relating to the first process data can be displayed in the second area of the display screen adjacent to the first area.

According to this aspect, what kind of event occurs by displaying the graph of the first process data in the first area of the display screen and displaying the explanatory text regarding the first process data in the adjacent second area. It will be easier to understand what you are doing and what kind of measures you need to take.

In the above aspect, the graph of the second process data related to the first process data may be displayed in the first area.

According to this aspect, the state of the plant can be monitored from various angles by displaying not only the graph of the first process data but also the graph of the related second process data.

In the above aspect, the first area may be configured to be able to display another graph of the first process data different from the graph of the first process data.

According to this aspect, the state of the plant can be monitored from various angles by displaying a plurality of types of graphs for the first process data.

In the above embodiment, the display screen is configured to be able to display a first screen that indicates a warning when at least one of a plurality of process data becomes an abnormal state, and transitions from the first screen in response to the selection of the warning. The second screen can be displayed on the display screen, and the second screen may include a first area and a second area.

According to this aspect, the outline of the plant state can be confirmed through a plurality of process data on the first screen, and the plant state can be confirmed in detail through the specific process data on the second screen.

In the above aspect, the warning is configured to be displayable in the third area of the first screen, and the graph of one or a plurality of typical process data related to the plant can be displayed in the fourth area adjacent to the third area. It may have been done.

According to this aspect, by displaying a warning in the third area of the first screen, the possibility of abnormality can be quickly grasped, and a graph of typical process data is displayed in the fourth area of the first screen. By doing so, it is possible to confirm the outline of the state of the plant.

In the above aspect, the explanatory text may include a text explaining a method of capturing an event from a graph.

According to this aspect, it is possible to confirm the method of capturing the event from the graph, and it becomes easy to understand what kind of event is occurring.

In the above aspect, the explanatory text may include a text explaining a method for optimizing the state of the first process data.

According to this aspect, it is possible to confirm the method for optimizing the state of the first process data, and it becomes easy to understand what kind of measures are required.

The system according to another aspect of the present invention includes a device provided with a display screen for displaying the state of the plant and a control device for controlling the device, and the device is provided in a first area of the display screen of the plant. The graph of the first process data related to the first process data can be displayed, and the explanation about the first process data can be displayed in the second area of the display screen adjacent to the first area.

According to this aspect, what kind of event occurs by displaying the graph of the first process data in the first area of the display screen and displaying the explanatory text regarding the first process data in the adjacent second area. It will be easier to understand if there is any, and it will be easier to understand what kind of measures are required.

According to the present invention, it is possible to provide a device and a system in which it is easy to understand what kind of event is occurring and what kind of response is necessary.

It is the schematic which shows the whole structure of the plant which concerns on embodiment of this invention. It is a figure which shows the functional block of the display system which concerns on this embodiment. It is a figure which shows the physical structure of the apparatus which concerns on this embodiment. It is a figure which shows an example of the 1st screen displayed on the apparatus which concerns on this embodiment. It is a figure which shows the 1st example of the 2nd screen displayed on the apparatus which concerns on this embodiment. It is a figure which shows the 2nd example of the 2nd screen displayed on the apparatus which concerns on this embodiment. It is a figure which shows the 3rd example of the 2nd screen displayed on the apparatus which concerns on this embodiment. It is a figure which shows the 4th example of the 2nd screen displayed on the apparatus which concerns on this embodiment. It is a flowchart of the display process executed by the apparatus which concerns on this embodiment.

Embodiments of the present invention will be described with reference to the accompanying drawings. In each figure, those having the same reference numerals have the same or similar configurations.

First, the plant targeted by the embodiment of the present invention may be any plant, but for example, a power plant including a boiler, an incinerator plant, a chemical plant, a wastewater treatment plant, or the like, for which process data can be obtained is targeted. It is said. FIG. 1 is a schematic view showing an overall configuration of a plant 1 according to an embodiment of the present invention. The plant 1 according to the present embodiment is, for example, a circulating fluidized bed type boiler that burns fuel while circulating a circulating material such as silica sand that flows at a high temperature to generate steam. To prepare. As the fuel for the plant 1, in addition to coal, for example, non-fossil fuel (woody biomass, waste tires, waste plastic, sludge, etc.) can be used. The steam generated in plant 1 is used to drive the turbine 100.

The plant 1 is configured to burn fuel in the furnace 2, separate the circulating material from the exhaust gas by a cyclone 3 functioning as a solid air separating device, and return the separated circulating material to the furnace 2 for circulation. There is. The separated circulating material is returned to the lower part of the furnace 2 via the circulating material recovery pipe 4 connected below the cyclone 3. The lower part of the circulating material recovery pipe 4 and the lower part of the furnace 2 are connected via a loop seal portion 4a in which the flow path is narrowed. As a result, a predetermined amount of circulating lumber is stored in the lower part of the circulating lumber recovery pipe 4. The exhaust gas from which the circulating material has been removed by the cyclone 3 is supplied to the rear flue 5 via the exhaust gas flow path 3a.

The boiler includes a furnace 2 for burning fuel and a heat exchanger for generating steam or the like by using the heat obtained by the combustion. A fuel supply port 2a for supplying fuel is provided in the middle portion of the furnace 2, and a gas outlet 2b for discharging combustion gas is provided in the upper portion of the furnace 2. The fuel supplied to the furnace 2 from the fuel supply device (not shown) is supplied to the inside of the furnace 2 through the fuel supply port 2a. Further, a furnace wall pipe 6 for heating the boiler water supply is provided on the furnace wall of the furnace 2. The boiler water supply flowing through the furnace wall pipe 6 is heated by combustion in the furnace 2.

In the furnace 2, the combustion / flow air introduced from the lower air supply line 2c causes solid matter including fuel supplied from the fuel supply port 2a to flow, and the fuel flows while flowing, for example, about 800 to 900. Burn at ° C. The combustion gas generated in the furnace 2 is introduced into the cyclone 3 with a circulating material. The cyclone 3 separates the circulating lumber and the gas by a centrifugal separation action, returns the circulating lumber separated via the circulating lumber recovery pipe 4 to the furnace 2, and returns the combustion gas from which the circulating lumber has been removed to the exhaust gas flow path 3a. To the rear flue 5.

In the furnace 2, a part of the circulating material called the in-core bed material stays at the bottom. This bed material may contain a bed material having a coarse particle size unsuitable for circulating flow and combustion contaminants, and the bed material unsuitable for these circulating materials may cause poor flow. Therefore, in order to suppress the flow failure, in the furnace 2, the bed material in the furnace is continuously or intermittently discharged to the outside from the discharge port 2d at the bottom. The discharged bed material is supplied to the furnace 2 again after removing unsuitable substances such as metal and coarse particle size on a circulation line (not shown), or is discarded as it is. The circulatory material of the circulatory furnace 2 circulates in the circulatory system composed of the circulatory furnace 2, the cyclone 3, and the circulatory material recovery pipe 4.

The rear flue 5 has a flow path for flowing the gas discharged from the cyclone 3 to the rear stage. The rear flue 5 has a superheater 10 for generating superheated steam and an economizer 12 for preheating the boiler water supply as an exhaust heat recovery unit for recovering the heat of the exhaust gas. The exhaust gas flowing through the rear flue 5 is cooled by exchanging heat with steam and boiler supply water flowing through the superheater 10 and the economizer 12. Further, it has a steam drum 8 for storing boiler water supply that has passed through the economizer 12, and the steam drum 8 is also connected to a furnace wall 6.

The economizer 12 transfers the heat of the exhaust gas to the boiler water supply to preheat the boiler water supply. The economizer 12 is connected to the pump 7 by a pipe 21 while being connected to the steam drum 8 by a pipe 22. The boiler water supplied from the pump 7 to the economizer 12 via the pipe 21 and preheated by the economizer 12 is supplied to the steam drum 8 via the pipe 22.

A precipitation pipe 8a and a furnace wall pipe 6 are connected to the steam drum 8. The boiler water supply in the steam drum 8 descends the precipitation pipe 8a, is introduced into the furnace wall pipe 6 on the lower side of the furnace 2, and flows toward the steam drum 8. The boiler water supply in the furnace wall pipe 6 is heated by the heat of combustion generated in the furnace 2 and evaporates in the steam drum 8 to become steam.

A saturated steam pipe 8b for discharging internal steam is connected to the steam drum 8. The saturated steam pipe 8b connects the steam drum 8 and the superheater 10. The steam in the steam drum 8 is supplied to the superheater 10 via the saturated steam pipe 8b. The superheater 10 uses the heat of the exhaust gas to superheat steam to generate superheated steam. The superheated steam passes through the pipe 10a, is supplied to the turbine 100 outside the plant 1, and is used for power generation.

The pressure and temperature of the steam discharged from the turbine 100 is lower than the pressure and temperature of the steam discharged from the superheater 10. Although not particularly limited, the pressure of the steam supplied to the turbine 100 is about 10 to 17 MPa, and the temperature is about 530 to 570 ° C. The pressure of the steam discharged from the turbine 100 is about 3 to 5 MPa, and the temperature is about 350 to 400 ° C.

A condenser 102 is provided downstream of the turbine 100. The steam discharged from the turbine 100 is supplied to the condenser 102, condensed in the condenser 102 and returned to saturated water, and then supplied to the pump 7. A generator that converts the kinetic energy obtained by the rotation of the turbine 100 into electrical energy is connected to the turbine 100.

The pump 7a supplies make-up water so as to keep the water level of the condenser 102 constant. FIG. 1 shows a make-up water flow rate u1 replenished by the pump 7a.

The process data handled in this embodiment may be arbitrary data relating to the plant 1, but may be, for example, data obtained by measuring the state of the plant 1 with a sensor, and more specifically, the temperature and pressure of the plant 1. And measured values such as flow rate may be included. FIG. 1 shows a boiler water supply flow rate u2 supplied from the pump 7 to the economizer 12. Further, FIG. 1 shows a boiler outlet steam flow rate u3 supplied from the superheater 10 to the turbine 10, and a saturated steam flow rate u4 supplied from the steam drum 8 to the superheater 10.

When a hole occurs in the plant 1, the make-up water flow rate u1 increases, or the flow rate difference between the boiler supply water flow rate u2 and the boiler outlet steam flow rate u3 increases. The DCS (Distributed Control System) 20 monitors the process data of the plant 1 such as the make-up water flow rate u1, the boiler supply water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4 for any abnormality.

Although the make-up water flow rate u1, the boiler supply water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4 are exemplified as process data, the process data relating to the plant 1 may be other data. The process data for plant 1 may be other data such as temperature and pressure.

FIG. 2 is a diagram showing a functional block of the display system 30 according to the present embodiment. The DCS 20 is a distributed control system for controlling the plant 1, acquires process data from a sensor or the like provided in the plant 1, and supplies a control signal for controlling the plant 1 to the plant 1 based on the process data. The display system 30 includes a control unit 31 and a device 32.

The control unit 31 controls the device 32. Specifically, the control unit 31 acquires the process data from the DCS 20 and generates a control signal for displaying on the display screen of the device 32 based on the process data. The control signal of the control unit 31 is supplied to the device 32. The device 32 displays a graph of the first process data relating to the plant 1 in the first area of the display screen of the device 32 based on the control signal of the control unit 31, and the second display screen adjacent to the first area. A description about the first process data is displayed in the area. The control unit 31 corresponds to an example of the control device of the present invention.

The device 32 includes a display screen for displaying the status of the plant 1, and is configured so that a graph of the first process data related to the plant 1 can be displayed in the first area of the display screen, and a display screen adjacent to the first area. In the second area of the above, the explanation about the first process data can be displayed.

In this way, what kind of event is occurring by displaying the graph of the first process data in the first area of the display screen and displaying the explanatory text regarding the first process data in the adjacent second area? Will be easier to understand, and it will be easier to understand what kind of measures are required.

FIG. 3 is a diagram showing a physical configuration of the display system 30 according to the present embodiment. The display system 30 includes a CPU (Central Processing Unit) 30a corresponding to a calculation unit, a RAM (Random Access Memory) 30b corresponding to a storage unit, a ROM (Read only Memory) 30c corresponding to a storage unit, and a communication unit 30d. And an input unit 30e and a display unit 30f. Each of these configurations is connected to each other via a bus so that data can be transmitted and received. In this example, the case where the display system 30 is composed of one computer will be described, but the display system 30 may be realized by combining a plurality of computers. Further, the display system 30 may be composed of a tablet terminal. By configuring the display system 30 with a tablet terminal, the display system 30 can be carried around, and for example, the display system 30 can be used while patrolling the plant 1. Further, the configuration shown in FIG. 3 is an example, and the display system 30 may have configurations other than these, or may not have a part of these configurations. In addition, a part of the configuration may be provided in a remote place. For example, the control unit 31 may be provided at a remote location. In this case, the device 32 may be configured to acquire the control signal generated by the control unit 31 provided in the remote location via the network.

The CPU 30a is a calculation unit that controls execution of a program stored in the RAM 30b or ROM 30c, calculates data, and processes data. The CPU 30a is a calculation unit that executes a program (monitoring program) that displays a graph and a description of the process data of the plant 1. The CPU 30a receives various data from the input unit 30e and the communication unit 30d, displays the calculation result of the data on the display unit 30f, and stores the data in the RAM 30b.

The RAM 30b is a storage unit in which data can be rewritten, and may be composed of a semiconductor storage element such as a DRAM or SRAM, for example. The RAM 30b may store data such as a program executed by the CPU 30a and process data of the plant 1. It should be noted that these are examples, and data other than these may be stored in the RAM 30b, or a part of these may not be stored.

The ROM 30c is a storage unit capable of reading data, and may be composed of, for example, a semiconductor storage element such as a flash memory or an HDD. The ROM 30c may store, for example, a monitoring program or data that is not rewritten. The data that is not rewritten includes, for example, information on the specifications of the plant 1 and the components of the plant 1.

The communication unit 30d is an interface for connecting the device 32 to another device. The communication unit 30d may be connected to a communication network such as the Internet.

The input unit 30e receives data input from the user, and may include, for example, a keyboard and a touch panel.

The display unit 30f visually displays the calculation result by the CPU 30a, and may be configured by, for example, an LCD (Liquid Crystal Display). The display unit 30f may display a graph or explanation of process data. The display unit 30f may be provided so as to form one screen by connecting a plurality of displays.

The monitoring program may be stored in a storage medium readable by a computer such as RAM 30b or ROM 30c and provided, or may be provided via a communication network connected by the communication unit 30d. In the display system 30, the CPU 30a executes the monitoring program to realize various operations described with reference to FIG. It should be noted that these physical configurations are examples and do not necessarily have to be independent configurations. For example, the display system 30 may include an LSI (Large-Scale Integration) in which the CPU 30a and the RAM 30b or ROM 30c are integrated.

FIG. 4 is a diagram showing an example of the first screen DP1 displayed on the device 32 according to the present embodiment. The device 32 is configured to be able to display a first screen DP1 that indicates a warning when at least one of a plurality of process data becomes an abnormal state on the display screen. Here, the abnormal state may include, for example, a state in which process data relating to the efficiency of the plant exceeds a threshold value, and a state in which a blowout may occur in the plant and the plant may be stopped.

The first screen DP1 includes a third region R3 and a fourth region R4. The device 32 is configured to be able to display a warning in the third region R3 of the first screen DP1 when at least one of the plurality of process data becomes an abnormal state. In the case of this example, the warning "blast" is shown, and the text information "2019/08/07 14:00" is shown as the current time information. This current time information is automatically updated, for example, every predetermined time (for example, every minute). Alternatively, manual update may be possible by the operation of the operator. As a modification, the time information immediately below the information "explosion" may be the time when the abnormality occurs. In addition, "plant", "boiler", "turbine", "generator" and "auxiliary machine" are displayed as "equipment / component-specific" buttons, and clicking each of them transitions to each monitoring screen. The abnormality that has the possibility of stopping the plant 1 is not limited to the blowout. For example, an abnormal pipe in which the inside of the pipe is blocked by a scale (inorganic substance brought into the pipe by water supply or the like) accumulated inside the pipe of the superheater can be detected as an abnormality having a possibility of stopping the plant 1. You may.

The "latest alarm information" includes a list display of the date and time when the warning occurred and the content of the warning. Double-clicking any of the listed items will transition to the second screen DP2 shown in the following figure.

The apparatus 32 is configured to be able to display a graph of one or a plurality of representative process data relating to the plant 1 in the fourth region R4 adjacent to the third region R3. In the case of this example, the graphs of "boiler efficiency (loss method) [% -LHV]", "power generation end efficiency [%]", "generator power [MW]" and "transmission power [MW]" are shown. There is. In addition, a graph of "DCS alarm aggregation" showing the frequency of alarms output by DCS 20 is shown.

By displaying a warning in the third area R3 of the first screen DP1 in this way, the possibility of an abnormality can be quickly grasped, and a graph of process data typical of the fourth area R4 of the first screen DP1. By displaying, the outline of the state of the plant 1 can be confirmed.

FIG. 5 is a diagram showing a first example of the second screen DP2 displayed on the device 32 according to the present embodiment. The device 32 is configured to be able to display the second screen DP2 on the display screen by transitioning from the first screen DP1 in response to the selection of the warning displayed in the third area R3 of the first screen DP1. The second screen DP2 includes a first region R1 and a second region R2. With the device 32, the outline of the state of the plant 1 can be confirmed through a plurality of process data on the first screen DP1, and the state of the plant 1 can be confirmed in detail through the specific process data on the second screen DP2. When the display content of the second screen DP2 is confirmed and the transition to the first screen DP1 is performed, it is shown that the corresponding alarm in the "latest alarm information" has been confirmed. Confirmation is indicated, for example, by changing the characters originally displayed in red to black. Further, when the transition button indicated by "1/10" is pressed at the lower part of the second screen DP2, another graph related to the selected alarm is displayed.

In the case of this example, the first region R1 is the first graph (scatter plot) of "boiler efficiency (loss method) (%)" and "boiler load (%)" and "boiler efficiency (loss method) (%). Includes a second graph showing the time change of. In this way, the graph of the second process data (boiler load in this example) related to the first process data (boiler efficiency (loss method) in this example) can be displayed in the first region R1. In this way, by displaying not only the graph of the first process data but also the graph of the related second process data, the state of the plant can be monitored from various angles. The first graph may also display a threshold value for determining whether or not to issue an alarm. In addition, the second graph may also display a threshold value for determining whether or not to issue an alarm, or may also display the time when the cause of the alarm occurs. Further, the apparatus 32 is not limited to one graph of the second process data related to the first process data, and may display two or more graphs. In the case of this example, by pressing the transition button indicated by "1/10" at the bottom of the second screen DP2, another graph of the second process data is displayed.

Further, the device 32 is configured to be able to display a second graph of the first process data different from the first graph in the first area R1. The first graph (scatter plot) of the first process data "boiler efficiency (loss method) (%)" and the second graph showing the time change of "boiler efficiency (loss method) (%)" are shown. By displaying a plurality of types of graphs for the first process data, the state of the plant 1 can be monitored from various angles. The device 32 may display three or more graphs related to the first process data.

The device 32 is configured to be able to display an explanatory text regarding the first process data in the second area R2 of the display screen adjacent to the first area R1. In the case of this example, the guide name is "boiler efficiency", the content is "boiler efficiency (heat input / output method)", and the date and time of occurrence is "2019/08/07 10:35:24". In the column, the text explaining how to capture the event from the graph entitled "1. Monitoring point (how to read the graph)" and the state of the first process data entitled "2. Correspondence method" are optimized. Contains text explaining how to do this. The method for optimizing the state of the first process data is a method for optimizing the state in which the process data of interest exceeds the threshold value and keeping it within the threshold value.

In "1. Monitoring point (how to read the graph)", the definition of boiler efficiency (loss method) and the calculation formula are described. With such an explanation, it is possible to confirm the method of capturing the event from the graph, and it becomes easy to understand what kind of event is occurring.

In "2. Correspondence method", items to be confirmed are listed when the boiler efficiency (loss method) is in an unusual state. With such an explanation, it is possible to confirm the method for optimizing the state of the first process data, and it becomes easy to understand what kind of measures are required.

The description of the first process data may include an image, a legend graph, and the like in addition to character information and mathematical formulas. In addition, the description may include the ability to display the time of the past occurrence of a warning from the process. By adding this information, the understanding of the operator can be further improved.

Further, the graph of the first process data displayed in the first area R1 of the display screen can show 12 hours before and after the warning occurrence time in chronological order. As a result, changes in process data before and after the occurrence time can be easily grasped.

FIG. 6 is a diagram showing a second example of the second screen DP2 displayed on the device 32 according to the present embodiment. The device 32 is configured to be able to display the second screen DP2 on the display screen by transitioning from the first screen DP1 in response to the selection of the warning displayed in the third area R3 of the first screen DP1. The second screen DP2 includes a first region R1 and a second region R2.

In the case of this example, the first region R1 is the first graph (scatter plot) of "evaporation multiple (-)" and "boiler load (%)" and "boiler efficiency (loss method) [% -LHV]". Includes a second graph showing time changes. In this way, the graph of the second process data (boiler efficiency (loss method) in this example) related to the first process data (evaporation multiple in this example) can be displayed in the first region R1. In this way, by displaying not only the graph of the first process data but also the graph of the related second process data, the state of the plant can be monitored from various angles.

The device 32 is configured to be able to display an explanatory text regarding the first process data in the second area R2 of the display screen adjacent to the first area R1. In the case of this example, the guide name is "boiler efficiency", the content is "boiler efficiency (heat input / output method)", and the date and time of occurrence is "2019/08/07 10:35:24". In the column, the text explaining how to capture the event from the graph entitled "1. Monitoring point (how to read the graph)" and the state of the first process data entitled "2. Correspondence method" are optimized. Contains text explaining how to do this.

In "1. Monitoring point (how to read the graph)", the definition of the evaporation multiple and the calculation formula are described. With such an explanation, it is possible to confirm the method of capturing the event from the graph, and it becomes easy to understand what kind of event is occurring.

In "2. Correspondence method", items to be confirmed are listed when the evaporation multiple is in an unusual state. With such an explanation, it is possible to confirm the method for optimizing the state of the first process data, and it becomes easy to understand what kind of measures are required.

FIG. 7 is a diagram showing a third example of the second screen DP2 displayed on the device 32 according to the present embodiment. The device 32 is configured to be able to display the second screen DP2 on the display screen by transitioning from the first screen DP1 in response to the selection of the warning displayed in the third area R3 of the first screen DP1. The second screen DP2 includes a first region R1 and a second region R2.

In the case of this example, the first region R1 is the first graph (scatter plot) of "turbine steam consumption rate (kg / kWh)" and "power generation amount (MW)" and "turbine steam consumption rate (kg / kWh)". Includes a second graph showing the time change of. In this way, the graph of the second process data (power generation amount in this example) related to the first process data (turbine steam consumption rate in this example) can be displayed in the first region R1. In this way, by displaying not only the graph of the first process data but also the graph of the related second process data, the state of the plant can be monitored from various angles.

The plant has a large number of events and parameters to be monitored, and when there is a change in the state of the plant, it is necessary to inform the operator efficiently and promptly. In that respect, according to the apparatus 32 according to the present embodiment, it is possible to efficiently grasp the change in the state of the plant by displaying not only the graph of the first process data but also the graph of the related second process data. By displaying the explanation, it is possible to confirm the method for optimizing the state of the plant, and it becomes possible to quickly grasp what kind of measures are necessary.

Further, the device 32 is configured to be able to display a second graph of the first process data different from the first graph in the first area R1. The first graph (scatter plot) of the first process data "turbine steam consumption rate (kg / kWh)" and the second graph showing the time change of the "turbine steam consumption rate (kg / kWh)" are shown. By displaying a plurality of types of graphs for the first process data, the state of the plant 1 can be monitored from various angles.

The device 32 is configured to be able to display an explanatory text regarding the first process data in the second area R2 of the display screen adjacent to the first area R1. In the case of this example, the guide name is "boiler efficiency", the content is "boiler efficiency (heat input / output method)", and the date and time of occurrence is "2019/08/07 10:35:24". In the column, the text explaining how to capture the event from the graph entitled "1. Monitoring point (how to read the graph)" and the state of the first process data entitled "2. Correspondence method" are optimized. Contains text explaining how to do this.

In "1. Monitoring point (how to read the graph)", the definition of the steam consumption rate and the calculation formula are described. With such an explanation, it is possible to confirm the method of capturing the event from the graph, and it becomes easy to understand what kind of event is occurring.

In "2. Correspondence method", items to be confirmed are listed when the steam consumption rate is in an unusual state. With such an explanation, it is possible to confirm the method for optimizing the state of the first process data, and it becomes easy to understand what kind of measures are required.

FIG. 8 is a diagram showing a fourth example of the second screen DP2 displayed on the device 32 according to the present embodiment. The device 32 is configured to be able to display the second screen DP2 on the display screen by transitioning from the first screen DP1 in response to the selection of the warning displayed in the third area R3 of the first screen DP1. The second screen DP2 includes a first region R1 and a second region R2.

In the case of this example, the first region R1 is the first graph (scatter plot) of "steam consumption rate (fuel salary base) (kg / kWh)" and "power generation amount (MW)" and "steam consumption rate (fuel)". Includes a second graph showing time changes in salary basis) (kg / kWh). In this way, the graph of the second process data (power generation amount in this example) related to the first process data (steam consumption rate (fuel salary base) in this example) can be displayed in the first area R1. There is. In this way, by displaying not only the graph of the first process data but also the graph of the related second process data, the state of the plant can be monitored from various angles.

Further, the device 32 is configured to be able to display a second graph of the first process data different from the first graph in the first area R1. The first graph (scatter plot) of the first process data "steam consumption rate (fuel salary base) (kg / kWh)" and the time change of "steam consumption rate (fuel salary base) (kg / kWh)" By showing the second graph to be shown and displaying a plurality of types of graphs for the first process data, the state of the plant 1 can be monitored from various angles.

The device 32 is configured to be able to display an explanatory text regarding the first process data in the second area R2 of the display screen adjacent to the first area R1. In the case of this example, the guide name is "boiler efficiency", the content is "boiler efficiency (heat input / output method)", and the date and time of occurrence is "2019/08/07 10:35:24". In the column, the text explaining how to capture the event from the graph entitled "1. Monitoring point (how to read the graph)" and the state of the first process data entitled "2. Correspondence method" are optimized. Contains text explaining how to do this.

In "1. Monitoring point (how to read the graph)", the definition of the heat consumption rate and the calculation formula are described. With such an explanation, it is possible to confirm the method of capturing the event from the graph, and it becomes easy to understand what kind of event is occurring.

In "2. Correspondence method", items to be confirmed are listed when the heat consumption rate is in an unusual state. With such an explanation, it is possible to confirm the method for optimizing the state of the first process data, and it becomes easy to understand what kind of measures are required.

FIG. 9 is a flowchart of the display process executed by the device 32 according to the present embodiment. First, the apparatus 32 acquires a plurality of process data relating to the plant 1 (S10).

Next, the apparatus 32 displays a warning in the third area of the first screen when at least one of the plurality of process data becomes an abnormal state (S11). Further, the apparatus 32 displays a graph of one or a plurality of representative process data relating to the plant 1 in the fourth region adjacent to the third region (S12).

When the warning displayed in the third area is selected, the device 32 transitions from the first screen and displays the second screen in response to the selection of the warning (S13). Then, the apparatus 32 displays the first graph of the first process data regarding the plant 1 in the first area of the second screen (S14). Further, the apparatus 32 displays a graph of the second process data related to the first process data or a second graph of the first process data different from the first graph in the first area (S15).

Further, the apparatus 32 displays a description regarding the first process data in the second area adjacent to the first area (S16).

By the above display processing, what kind of event occurs by displaying the graph of the first process data in the first area of the display screen and displaying the explanatory text regarding the first process data in the adjacent second area. It will be easier to understand if there is any, and it will be easier to understand what kind of measures are required.

The embodiments described above are for facilitating the understanding of the present invention, and are not for limiting and interpreting the present invention. Each element included in the embodiment and its arrangement, material, condition, shape, size, and the like are not limited to those exemplified, and can be changed as appropriate. In addition, the configurations shown in different embodiments can be partially replaced or combined.

1 ... Plant, 2 ... Furnace, 3 ... Cyclone, 3a ... Exhaust gas flow path, 4 ... Circulating material recovery pipe, 4a ... Loop seal, 5 ... Rear flue, 6 ... Furnace wall pipe, 7, 7a ... Pump, 10 ... Heater, 12 ... Economizer, 20 ... DCS, 30 ... Display system, 31 ... Control unit, 32 ... Device, 30a ... CPU, 30b ... RAM, 30c ... ROM, 30d ... Communication unit, 30e ... Input unit, 30f ... Display, 100 ... Turbine

Claims (8)

A device equipped with a display screen that displays the status of the plant.
A graph of the first process data relating to the plant can be displayed in the first area of the display screen.
A description relating to the first process data can be displayed in the second area of the display screen adjacent to the first area.
Device. In the first area, a graph of the second process data related to the first process data can be displayed.
The device according to claim 1. In the first area, another graph of the first process data different from the graph of the first process data can be displayed.
The device according to claim 1 or 2. On the display screen, a first screen that warns when at least one of a plurality of process data becomes abnormal is configured to be displayable.
It is configured so that the second screen can be displayed on the display screen by transitioning from the first screen in response to the selection of the warning.
The second screen includes the first region and the second region.
The apparatus according to any one of claims 1 to 3. The warning can be displayed in the third area of the first screen.
In the fourth region adjacent to the third region, a graph of one or more representative process data relating to the plant can be displayed.
The device according to claim 4. The explanatory text includes a text explaining how to capture an event from the graph.
The apparatus according to any one of claims 1 to 5. The explanatory text includes a text explaining a method for optimizing the state of the first process data.
The apparatus according to any one of claims 1 to 6. A device with a display screen for displaying the status of the plant,
A control device for controlling the device is provided.
The device is
A graph of the first process data relating to the plant can be displayed in the first area of the display screen.
A description relating to the first process data can be displayed in the second area of the display screen adjacent to the first area.
system.

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