JPH01260506A - Plant progress monitoring device - Google Patents

Abstract

PURPOSE:To reduce a load on an operator and to perform a plant operation smoothly by deciding the present state of a plant based on a process quantity inputted from the plant, displaying an operation developing drawing for the plant operation based on a decided result, and displaying an operation table to dissolve stagnation of the plant operation. CONSTITUTION:The title device is provided with a process quantity input means 1, a plant stage decision means 3, an operation item contraction means 4, an automated console 5, a storage device 6, a display conversion means 7, and a picture display device 8. And the present state of the plant 2 is decided based on the process quantity inputted from the plant 2, and the operation developing drawing for the plant operation is displayed based on the decided result, and also, the operation table with respect to an operation to dissolve the stagnation of the plant operation is displayed. Therefore, the operator can recognize the operating status of the plant 2 precisely, and also, know an operation item which makes the cause of the stagnation. In such a way, it is possible to reduce the load on the operator and to perform the monitor of the plant operation smoothly.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a plant progress monitoring device.

(Prior Art) For example, in a power generation plant, it is necessary to adjust the output in accordance with an increase or decrease in electric power demand, and therefore, it is necessary to start/operate/stop a plurality of thermal power plants as appropriate.

When starting/stopping such thermal power generation plan 1-, it is necessary to ensure that operation 1- is performed smoothly without causing traffic congestion. This may lead to problems such as smooth start/stop operation or deterioration.

(Invention or problem to be solved) In this way, when a traffic jam occurs due to starting/stopping a thermal power generation plan, conventionally, operators investigate and find out the cause of the traffic jam due to the operation of the thermal power generation plan. In addition to placing a heavy burden on the operator, it also takes a lot of time to investigate, resulting in the inconvenience of delaying start/stop operations.

Therefore, the present invention solves the disadvantages of the prior art, and
The object of the present invention is to provide a plant progress monitoring device that can appropriately monitor the progress of plan l operation, such as the occurrence of problems such as plan l-operation.

[Structure of the Invention] (Means for Solving the Problems) The present invention determines the current state of Plan 1 based on the process base input from the plant, and changes the current state of Plan 1 for operation based on the determination result. In addition to displaying the operation development diagram, the operator involved in the operation to eliminate traffic jams during Plan I driving is also displayed.

(Function) This allows the operator to accurately recognize the operating status of the plant, and also allows the operator to easily recognize the operating status of the plant. (Since it is possible to clearly know the operation items to be operated to turn off the power, the burden on the operator is reduced and smooth Plan 1 operation is possible.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a bran h progress monitoring device according to an embodiment of the present invention.

In the same figure, the process quantity input means 1 inputs various process quantities to the thermal power generation plan 1 at respective prescribed timings, and the input process quantity signals are input to the thermal power generation plan 1 from the plan I.・Stage determination means 3
, and the IM work item ['' is added to the narrowing down means 4.

The automation console 5 is for operating the thermal power generation plan).2, and is equipped with various operating means and display means.

The storage device 6 stores the operating progress stage k! of the thermal power generation plan l-2. I'! To determine the status of various process quantities, Plan 1 - Status Judgment Table, Thermal Power Generation Plan 1 to 2
A stage selection table in which the stages are listed in the plan 1 determined by the combination of the operation progress stage and the operation system -), an operator who displays the operation items of the thermal power plant 2 for each system at each operation stage, And, the operation order [1
The related knowledge table is stored, and the plant state judgment table and the stage selection table are accessed by the blunt stage judgment means 3, and the operator jE and the related knowledge person access the operation order "1 narrowing down means 4". be done.

The plan 1 stage determination means 3 uses the process amount signal inputted from the process amount input means 2, the operation information of the automation console 5, and the state determination table and stage read from the storage device 6 to the plan 1 read out. Based on the selection table, the current status of thermal power plant 2 (plan 1)
stage), and the determination result is output to the operation item narrowing down means 4.

Here, as shown in Fig. 2, the thermal power generation plan l-2 includes "startup preparation", "ignition", "turbine speed increase", "Inno 1 person load - increase", "normal operation", ``M row'', ``Turbine shutdown for 1 day'', and ``Auxiliary equipment shutdown J'' eight plans 1
It is set according to the state or the progress of the operation.

Then, depending on the combination of the Plan 1 status and the system being operated by the operator, it is determined whether the Plan 1 stage is reached.

Operation order [-1 The narrowing means 4 selects the operation procedure corresponding to the current plan I stage and each operation based on the process amount signal input from the process input means 2 and the judgment result of the plant stage judgment means 3. Operation development diagram display that shows the status of items, and thermal power generation plan l
- Among the driving operations in 2, which are unsatisfactory (causing traffic jams), display data that displays an operation table that is located at the next step and corresponds to the operation that has the fewest unsatisfied conditions. These display takes are output to the display conversion means 7.

The display conversion means 7 forms display data in which the operation development diagram and the failure operation table are combined into a prescribed screen configuration based on the operation development diagram display data and the failure operation table display data, and displays the display data on the screen display device. Output to 8. Thereby, the screen display device 8 displays a screen in which the operation development diagram and the failure operation table are combined.

FIG. 3 shows an example of the operation surface of the automation console 5. As shown in FIG.

In the figure, a display device 5a displays the state change of the thermal power generation plan 1-2 in the startup phase from "startup preparation" to just before "normal operation", and a display device 5b It displays the state change of the thermal power plant 2 during the stop phase from immediately after "normal operation" to "auxiliary equipment stop", and the automation button group 5C is used to use/exclude functions of the automation console 5. The operation phase button group 5d is for instructing the operation phase 2 of the thermal power generation plan 1, and the system selection button group 5e is for inputting the operation phase of the target system. This is for inputting use/exclusion.

FIG. 4 shows an example of the contents stored in the storage device 6. As shown in FIG.

In the figure, an operation table 68 stores the specific contents of a large number of operations to be performed on the thermal power plant 2.

For example, the operation table number 0BO400 is added and 4
The operation table 68 regarding the seawater system start selection command consists of a timing condition consisting of a person-and condition, an operation completion condition consisting of a 2-input OR condition, and a 1-input pre-operation condition.
It is constructed as shown in FIG. 5(a). Furthermore, when this operation table 68 is arranged in sequence, it becomes as shown in FIG. 2(b).

In this case, the four inputs (configuration inputs) that make up the timing conditions are "use seawater system computer", "reset dσ water system selection", "seawater system start selection", and "seawater system start selection condition". The default values are "to set", "off", "set", and "set to set".

The two configuration inputs of the operation completion condition are "seawater system startup selection" and "seawater system startup sequence completion", and the respective prescribed values are "on" and "on". The configuration input of the pre-operation condition is [seawater system pre-selection condition j, and its specified value is "set".

Therefore, the "seawater system pre-selection condition" is "set" and the pre-operation condition is met, all component inputs of the timing condition have the specified values and the timing condition is met, and none of the operation completion conditions is met. When the configuration input takes the specified value and the operation completion condition is satisfied, the operation of the seawater system start selection command is established.

The operation item related knowledge table 6b stores a large number of operation items and their procedures for each plant stage, and is displayed on the screen display device 8 as shown in FIG. 6(a). Screen display data to be displayed, operation item list as shown in Figure (b),
It is also composed of a related knowledge table as shown in FIG. 4(c).

In this case, eight operation items from operation 1 to operation 8 are displayed on the screen, and each operation item has operation table number 0BOOO.
O, 0BOOO1, 0B2000, 0B3000,
0B3500, OB4000.

Operation tables 0B4500 and 0B5000 are set, and related knowledge 1 to 8 are set as related knowledge tables.

Also, for example, looking at related knowledge 4 corresponding to operation 4,
Three operations are performed after operation 4, and these operations are
It can be seen that these are operation 51, operation 6, and operation 7.

In addition, this operation item related knowledge table 6b is a thermal power generation plan!・This is the result of hearing the operating procedures and operating conditions from an operator who is proficient in the operations described in step 2.

The plant state determination table 60 is for determining which plan 1 the thermal power plant 2 is in based on the plant quantity signal, and is configured for each plant state.

For example, as shown in Figure 7(a), Plan I-state determination clothes for determining start-up preparation include an intermediate condition TPO with 5 input OR condition configuration inputs, and 2 "seawater system complete" inputs.
Composition of input AND condition It consists of conditions to be input. Further, the sequence diagram is shown in FIG. 2(b).

Therefore, if any of "Seawater System Complete", "Condensate Clean Amplifier Complete", "Deaerator Tallinn Up Complete", "Prepoiler Clean Up Complete", or "Boiler Clean Up Complete" is "off". , and if the "start button" is "on", "preparing to start" is established,
plan) and status is determined to be ready for startup.

The stage selection table 6d is for determining the plant stage of thermal power generation plan 1 to 2, for example, the 8th
It is configured as shown in the figure.

FIG. 9 shows a specific example of the plant stage determination means 3.

In the same figure, the input determination means 31 compares the magnitude of the analog signal among the process quantity signals inputted from the process quantity input means 1 with each specified value stored in the set value storage means 32. The comparison results are output to the state change detection means 33, and the digital signals are output as they are.

The state change detection means 33 determines whether the current input signal from the input determination means 31 has changed by one or more than the previous input signal stored in the previous input state storage means 34. , and outputs the determination result to the plan 1-state determining means 35. In addition, the state change detection means 3
3 is the signal input this time, which is stored in the previous input state storage means 34.
Update the memory contents of.

When the state change detection means 33 outputs a determination of a state change, the plant state determination means 35 inputs the plant state determination table 60 from the storage device 6, and receives the process amount signal and the operation phase input from the automation console 5. Based on the operation signals of the button group 5d, the current plant status of the thermal power generation plan 1 or 2 is determined, and the determination result is output to the operation system determining means 36.

The operation system determination means 36 determines the current plant stage of the thermal power plant 2 based on the plant state determination result inputted from the plant state determination means 35 and the operation signal of the system selection button group 5e inputted from the automation console 5. and outputs the determination result to the operation item narrowing down means 4.

FIG. 10 shows a specific example of the operation item narrowing down means 4.

The operation item order creation means 41 reads the corresponding operation item related knowledge clothes 6b from the storage device 6 based on the plant stage determination result of the plant stage determination means 3, and outputs it to the operation table child satisfaction condition number determination means 42. do.

The operation table child satisfaction condition number determining means 42 firstly calculates the operation item related knowledge 6b input from the operation item order creation means 41.
All the operation tables 68 with the operation table numbers set in the operation table number column of are read out from the storage device 6.

Specifically, for each operation table 6a, determine the process quantity signals that make up the operation establishment conditions, check whether these process quantity signals satisfy the respective specified values, and calculate the number of conditions that are not satisfied. Count.

That is, for a condition configured as an AND condition, the number of conditions whose current value does not satisfy the specified value among the configuration inputs of that condition becomes the number of conditions that are not satisfied for that AND condition. Further, for a condition made up of an OR condition, when all the constituent inputs of that condition do not satisfy a specified value, the number of unsatisfied conditions for that OR condition becomes 1.

Here, the normal operation of the operation table is that after the pre-operation condition is met, the timing condition is met, and the operation completion condition is not met, an operation execution request is made and the operation is completed. Later, the operation is performed in the order that the operation completion condition is satisfied, but in this embodiment, only the timing condition is determined as to whether the condition is not satisfied.

For example, considering the "Seawater system start selection command" of operation table number 0BO400, in this case, among the 4 inputs of the timing condition consisting of 4 input AND conditions, the number of configuration inputs that do not satisfy the specified value is the number of failures. becomes.

Then, the operation table failure condition number determining means 42 determines the operation table 6b corresponding to each operation item of the screen display data.
The display data formed by setting the item names is output to the operation development diagram display take creation means 43.

At the same time, the number of unfulfilled conditions calculated for each operation table 6b and the number of conditions to be determined as unfulfilled conditions,
It is output to the operation development diagram display data creation means 43 and the display operation table determination means 44. Furthermore, the operation item related knowledge table 6b is output to the display operation table determining means 44.

The operation development diagram display data creation means 43 first changes the color of the frame surrounding the operation items of the input display take so that the number of failures is O.
red for operations, blue for other operations,
Set each.

At the bottom right of each operation item, "(Number of failed items)" is displayed.
/(Condition number)'' is added to form operation development diagram display data for displaying the operation development diagram of the blunt stage, and output to the display converting means 7.

The display operation table determining means 44 uses the operation item related knowledge table 6b.
For the operation items, the number of failures is checked in the order of operations, and the first operation item that fails is determined to be the display operation item. Furthermore, if there are a plurality of operation items having the same operation order as the first operation item that fails, the operation item with the least number of failures is determined as the display operation item.

Then, the operation table number of the display operation item determined in this way is outputted to the operation table display data creation means 45.

The operation table display data creation means 45 reads the input operation table number from the operation table 6a' and the storage device 6, forms a sequence diagram of the operation table 6a, and outputs the display data to the display conversion means 7.

The display conversion means 7 includes an operation development diagram display data creation means 43.
The display data of the operation development diagram inputted from the operation table display data creation means 45 and the display data of the sequence diagram inputted from the operation table display data creation means 45 are synthesized, for example, the display data of the display screen as shown in FIG. 11 is configured, It is displayed and output on the screen display device 8.

On this screen, on the left of the top there is a column R for displaying the state name for Plan 1, on the right there is a column R2 for displaying the selected system name, and in the center there is a column for displaying the operational development diagram. R3
However, a column R4 is set for displaying the sequence diagram in a manner that it is buried in the lower right part of the operation development diagram.

Further, in the figure, the portion indicated by the double line is displayed in red, and the other portions are displayed in blue. In the sequence diagram, it is also possible to display the satisfied condition in red and the unfulfilled condition in blue, but in that case, the operation table display data creation means 45 can distinguish whether each condition is satisfied or not. There is a need to.

In this way, a list of operating procedures for the plant stage of thermal power generation plan 1-2 at that point is displayed on the screen display device 8, with the success/failure of each operation item indicated by color. Therefore, the operator can clearly confirm the operating progress of the thermal power plant 2, and also clearly recognize the cause of the traffic jam in the operating progress.

In addition, since the contents of the operation that should be performed first in proceeding with the current plant stage 16 after an unsuccessful operation are displayed in an expanded state in a sequence diagram, the cause of the traffic jam can be checked in detail.

Thereby, the operator can smoothly monitor the operation of thermal power generation plans 1 and 2.

In addition, although the above-mentioned Example demonstrated the case where this invention was applied to the monitoring of a thermal power plant, this invention can be similarly applied to other industrial plants.

[Effects of the Invention] As explained above, according to the present invention, the current state of the plant is determined based on the process amount input from the plant, and an operational development diagram for plant operation is displayed based on the determination result. At the same time, we have also displayed an operation chart for operations to eliminate congestion during plant operation, allowing operators to accurately recognize the operating status of the plant and clearly understand the operation items that are causing congestion. As a result, the burden on the operator is reduced and smooth plant operation monitoring becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a plant progress monitoring device according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing an example of a plant state, FIG. 3 is a schematic diagram showing an example of an automation console, and FIG. 5(a) is a schematic diagram showing an example of an operation table, FIG. 5(b) is a sequence development diagram of FIG. 6(a), and FIG. 6(a) is a schematic diagram showing an example of screen display data, and (b) is a schematic diagram showing an example of screen display data.
Figure 7(c) is a schematic diagram showing an example of a related knowledge table; Figure 7(a) is a schematic diagram showing an example of a plant status determination table; Figure 7(b) is a schematic diagram showing an example of a plant status determination table. Figure (a) is a sequence development diagram, Figure 8 is a schematic diagram showing an example of a stage selection table, Figure 9 is a block diagram showing a concrete example of the plant stage determination means, and Figure 10 is a concrete diagram of the operation item narrowing means. A block diagram showing an example, FIG. 11 is a schematic diagram showing an example of a monitoring screen. DESCRIPTION OF SYMBOLS 1... Process amount input means, 3... Plant stage determination means, 4... Operation item narrowing means, Death... Automation console, 6... Storage device, 7... Display conversion means, 8 ...Screen display device. Figure 9 Figure 10

Claims (1)

[Claims] A process amount input means for inputting a process amount from a plant, an automation console comprising a number of operating means for operating the plant, and a state of the process amount for determining the progress stage of operation of the plant. a storage device that stores a plant status determination table, an operation table that represents the operation items of the plant at each operation stage for each system, and an operation item related knowledge table that represents the relationship of each operation item in the operation table; plant stage determining means for determining the current plant operation stage based on the process amount input by the process amount input means, the operation input signal from the automation console, and the plant state determination table stored in the storage device; operation items for eliminating the cause of congestion in plant operation based on the process quantity input by the quantity input means, the judgment result of the plant stage judgment means, the operation table and the operation difference item related knowledge table stored in the storage device; an operation item narrowing means for specifying, a process quantity input by the process quantity input means, a judgment result of the plant stage judgment means, and an operation table and an operation difference item related knowledge table stored in the storage device. A plant progress monitoring device comprising display means for displaying an operation development diagram for plant operation and displaying operation items specified by the operation item narrowing means.