JP4653715B2 - Plant operation support device, plant operation support method, computer program, and storage medium - Google Patents

Description

  The present invention relates to a plant operation support device, a plant operation support method, a computer program, and a storage medium, and more particularly to a technique suitable for use in supporting operation of a complex chemical reaction system plant such as a blast furnace.

  In general, plant operation is often performed while taking measured process data into a computer and monitoring the operation state of the plant with the computer. And in order to carry out high level stable operation, for example, a plant operation support device as disclosed in Patent Document 1 is used. In this plant operation support device, features for past alarms (abnormalities) and operation patterns are extracted and stored as an event database, and events similar to the current plant data are retrieved from the event database and presented. To support plant operation.

JP 2001-255929 A

  However, in a plant with a complex reaction system in which solid, liquid, and gas reactions proceed simultaneously, such as a blast furnace, reactions that require various reaction times from several seconds to several hours are simultaneously progressing and added from the outside. Since the time constant (for example, several days) at which the plant responds to the operation is very long, an early operation in anticipation of the response result is required. Furthermore, there are a plurality of causes for one phenomenon that the temperature of an arbitrary part has increased, and there are a plurality of countermeasures. In such a plant, the situation at that time is accurately judged, the situation of the same temperature rise is dealt with in a flexible manner, and the situation of the plant changed by one operation is judged, and further new operations are performed. Need to add.

  For this reason, in the plant operation support apparatus as described in Patent Document 1 described above, it is possible to automatically extract a feature of a change in process data for an arbitrary operation with respect to a plant having such a complex reaction system. Have difficulty. Therefore, it is difficult to specify an operation pattern, to accurately and quickly identify an event caused by the operation, and to perform appropriate operation support.

  In view of the above-described problems, an object of the present invention is to enable appropriate operation support in the operation of a plant such as a blast furnace having a complicated reaction system.

The plant operation support device according to the present invention is a plant operation support device that supports an operation by displaying a plurality of operation patterns on a screen of a display device to an operator in the operation of the plant, and the operation pattern executes the operation pattern. A pattern comprising an execution condition section storing operation conditions for performing, and a process data determination for determining the next operation based on an operation result of the plurality of operators and an operation result of the process data after the operation is performed The operation condition stored in the execution condition unit is established from a database in which a plurality of types of operation patterns are recorded and a plurality of types of operation patterns recorded in the database. Optimal operation pattern determining means for determining an operation pattern, and the operation determined by the optimal operation pattern determining means An operation pattern execution instructing means for instructing the plant to execute the turn based on the operation by the operator and then inputting the operation result of the process data by the operation and determining the next operation by the process data determination; The operation pattern instructed to be executed by the operation pattern execution instructing means includes the operation results of the process data being executed in the plant, the operation result for the plant, and the operation memo input from the input device by the operation of the operator. The operation information similar to the operation pattern currently being executed is recorded in the operation information from the operation means recorded by the recording means for recording operation results associated with the operation information to the recording device. Based on the operation result search means for searching based on the search result and the operation result search means. On the basis of the operation results, and having a display means for displaying guidance on the display device of the expected course of the later.

The plant operation support method of the present invention is a plant operation support method for displaying an operation pattern on a screen of a display device for an operator in operation of the plant and supporting the operation, and the operation pattern executes the operation pattern. A pattern comprising an execution condition section storing operation conditions for performing, and a process data determination for determining the next operation based on an operation result of the plurality of operators and an operation result of the process data after the operation is performed And a step of recording a plurality of types of the operation patterns in a database, and an operation pattern in which the operation conditions stored in the execution condition unit are satisfied from a database in which a plurality of types of the operation patterns are recorded. Determined in the optimum operation pattern determination step and the optimum operation pattern determination step. An operation pattern execution instruction step for instructing the plant to execute the operation pattern based on the operation by the operator, and then inputting the operation data of the process data by the operation and determining the next operation by the process data determination And the operation pattern instructed to be executed in the operation pattern execution instruction step, the operation result of the process data being executed in the plant, the operation result for the plant, and the operation memo input from the input device by the operation of the operator, A recording step for recording the operation result associated with the operation information including the operation information including the operation pattern recorded in the recording step and the operation result similar to the operation pattern currently being executed from the operation information recorded in the recording step. Operation result search step for searching based on Business results retrieved based on the retrieved operation results in step, and having a display step of displaying guidance on the display device of the expected course of the later.

  A computer program according to the present invention causes a computer to execute each step of the plant operation support method.

  The storage medium of the present invention stores the above-described computer program.

  According to the present invention, the operation information including the operation data including the process data, the operation result for the plant, and the operation memo input from the input device by the operator's operation is recorded in the recording device. Since the operation results similar to the currently executed operation pattern are searched from the recorded operation results based on the operation information, the subsequent expected progress is displayed as guidance on the display device. The operator can operate the plant utilizing the operator's know-how. Thereby, operation support can be appropriately performed in the operation of a plant such as a blast furnace having a complicated reaction system.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a functional configuration example of a plant operation support apparatus according to the present embodiment.
In FIG. 1, reference numeral 101 denotes an operation pattern database, in which a plurality of operation patterns are recorded. Here, the operation pattern is a pattern composed of a combination of one or a plurality of operations and the amount of change in virtual process data focused on by the operations, and this operation pattern is created in advance. In this embodiment, the operation pattern database 101 is built in the plant operation support apparatus 100. However, the operation pattern database 101 is provided outside the plant operation support apparatus 100, and is connected to the plant operation support apparatus 100 so as to be communicable. You may make it.

FIG. 2 is a diagram illustrating an example of an operation pattern in the present embodiment.
The operation pattern includes an execution condition unit 201 and an execution unit 202. The execution condition unit 201 stores conditions for executing the operation pattern. For example, when the conditions for executing a certain operation pattern A are a hot metal temperature of 1500 ° C. or lower and a furnace pressure loss of 2 atmospheres or higher, the conditions are stored. The execution unit 202 includes an operation by an operator and process data determination. After the operation by the operator is performed, the operation procedure differs depending on the process data.

  Returning to the description of FIG. 1, reference numeral 102 denotes an operation pattern operation condition determination unit which inputs process data from a plant (including a control device for controlling the plant) via a network and is recorded in the operation pattern database 101. All the operation patterns that have been read out are checked, and those that satisfy the execution conditions stored in the execution condition unit 201 are checked, and the corresponding operation patterns are notified to the optimum operation pattern determination unit 103.

  The optimum operation pattern determination unit 103 receives all operation patterns from the operation pattern operation condition determination unit 102, and extracts an operation pattern that satisfies the conditions stored in the execution condition unit 201. Then, the display control unit 106 displays all of the operation patterns on the display device 107 and announces the operator so that the operator can select from these.

FIG. 5 is a diagram illustrating an example of an operation pattern selection screen in the present embodiment.
A plurality of selection fields 501 are displayed together with the names of the operation patterns so that the operator can easily recognize the operation patterns recorded in the operation pattern database 101. In addition, the operation pattern operation condition determination unit 102 displays a selection column 502 having a different color for the operation pattern determined to satisfy the execution condition. Note that only the operation pattern determined to satisfy the execution condition may be displayed on the screen.

  The operator selects one operation pattern from these displayed operation patterns and clicks a decision button 504 to determine the operation pattern and issue an execution instruction. Furthermore, a comment entry column 503 is provided, and the operator can input an operation memo such as the reason for selecting the operation pattern to the comment entry column 503 via the operation memo creation unit 104.

  When the determination button 504 is clicked by the operator's operation and an input signal is received from the input device 108, the optimum operation pattern determination unit 103 passes the selected operation pattern to the operation pattern execution instruction unit 105, and the operation pattern execution instruction unit 105. Issues an execution instruction to the target plant in order to execute the received operation pattern.

  When the operation pattern is executed, the display control unit 106 displays the current progress on the display device 107 as shown in FIG. Also, the operation pattern execution instruction unit 105 inputs process data based on the operation pattern from a plant or the like, and determines the operation procedure of the execution unit 202 in the operation pattern. For example, when the operation 1 shown in FIG. 2 is performed, the temperature gradient, the reaction time, and the like may be different based on the operation. The operation pattern execution instruction unit 105 determines whether to perform the operation 2 or the operation 3 next in the process data determination 1 shown in FIG. 2 in consideration of the movement of the process data such as the temperature gradient and the reaction time. Judge up to the procedure.

  In this embodiment, a plant having a complex reaction system in which reactions with different time constants of solid, liquid, and gas proceed simultaneously, such as a blast furnace, is targeted. In a complex plant, a plurality of operations are performed. Often the patterns are advanced simultaneously. FIG. 4 is a diagram illustrating an example of progress of a plurality of operation patterns.

  For example, while the operation pattern A is being executed, the execution condition of the operation pattern B may be satisfied and the operation pattern B may be executed simultaneously. Also, when the execution pattern D is satisfied while the operation pattern D is being executed, the execution of the operation pattern D is temporarily suspended, and the execution of the operation pattern D is resumed after the execution of the operation pattern E is completed. There is also.

  Further, when one or more operation patterns are instructed to be executed by the operation pattern execution instruction unit 105, the operation memo creation unit 104 receives an input signal from the input device 108 by an operator's operation, and notes and improvements regarding the operation. Operation notes such as dots can be created.

  Reference numeral 109 denotes an operation result recording unit, which records the operation results of the operation pattern instructed to be executed by the operation pattern execution instruction unit 105. Specifically, process data such as temperature gradient, reaction time, etc. from the plant and the operation result by the operator based on the operation pattern being executed, and the operation memo created in the operation memo creation unit 104 by the operator's operation are operated. Information is recorded as operation results in association with the operation pattern being executed. In this way, by accumulating the operation results, it is possible to refer to the operation results when the same operation pattern is executed in the future.

  Here, the operation result by the operator includes, for example, the amount of operation of the plant by the operator, the operation time interval, changes in temperature, pressure, time, etc. associated with the operation. In complex plants, there are many cases where a plurality of operation patterns proceed simultaneously, and it is necessary to clarify which operation pattern is caused by changes in temperature, pressure, etc. The operation results are also linked.

  Reference numeral 110 denotes an operation result search unit, which searches an operation result most similar to the operation pattern currently being executed from the operation results accumulated in the operation result recording unit 109. Specifically, the most similar operation performance is searched from the operation time interval, the operation amount, and the like from the past operation results of the same operation pattern. The search of the operation results is first narrowed down to past data classified for each operation pattern, and then further narrowed down by the operation and determination route up to now. Then, an evaluation function is created with evaluation values such as an operation amount (absolute value, operation width), a determination process data change amount, and a change confirmation time, and a past operation result indicating the closest value is selected.

  Reference numeral 111 denotes an operation guidance unit, which creates data necessary for guidance according to the current execution status from the operation results searched by the operation result search unit 110. Then, the display control unit 106 displays the data on the display device 107, and guides the operating procedure and the like to the operator.

Next, the operation procedure by the plant operation support apparatus 100 will be described. FIG. 9 is a flowchart illustrating an example of a procedure for accumulating operation results by the plant operation support apparatus 100 according to the present embodiment.
First, in step S901, the operation pattern operation condition determination unit 102 determines whether or not the operator has operated the input device 108 to input an operation pattern selection start signal. If no signal is input as a result of this determination, the process waits until a signal is input.

  On the other hand, if a signal is input as a result of the determination in step S901, in step S902, the operation pattern operation condition determination unit 102 reads a plurality of operation patterns from the operation pattern database 101, and further processes data from the target plant. Is obtained, and an operation pattern that satisfies the operation pattern execution condition is checked and notified to the optimum operation pattern determination unit 103.

  Next, in step S903, as shown in FIG. 5, the display control unit 106 displays a list of a plurality of operation patterns read from the operation pattern database 101 by the operation pattern operation condition determination unit 102, and determines the operation pattern operation condition. The operation pattern notified from the unit 102 to the optimum operation pattern determination unit 103 is displayed so as to be identifiable to the operator such as color change.

  Next, in step S904, the optimum operation pattern determination unit 103 determines whether one operation pattern is selected from the operation patterns displayed as a list by the operator's operation and the determination button 504 shown in FIG. 5 is clicked. Determine. If the determination button 504 is not clicked as a result of this determination, the process waits until the determination button 504 is clicked.

  On the other hand, if the determination button 504 is clicked as a result of the determination in step S904, in step S905, the operation pattern execution instruction unit 105 receives the operation pattern determined from the optimum operation pattern determination unit 103, and executes the operation pattern. In order to do so, an execution instruction is issued to the target plant.

  Next, in step S906, the operation result recording unit 109 inputs the process data and the operation result of the plant by the operator from the target plant in accordance with the operation pattern instructed to be executed by the operation pattern execution instruction unit 105. It is linked with the operation pattern. Further, when the operation memo is created in the operation memo creation unit 104 by operating the input device 108 by the operator, the operation memo is also associated with the operation pattern being executed. Then, the process data, the operation result of the plant by the operator, the operation memo, and the operation pattern are linked and recorded as the operation results as needed.

  Next, in step S907, the operation result recording unit 109 determines whether or not the operation pattern has been executed and the recording has been completed. If the result of this determination is that recording has not ended, the process returns to step S906, and the operation results are continuously recorded. On the other hand, if the result of determination in step S907 is that recording has ended, the processing ends.

FIG. 10 is a flowchart illustrating an example of a procedure for performing operation guidance by the plant operation support apparatus 100 according to the present embodiment. In this flowchart, the description will be made on the assumption that the operation results are sufficiently accumulated by the procedure shown in FIG.
In step S1001, the operation pattern execution instruction unit 105 determines whether an operation pattern execution instruction has been issued to the target plant. If the result of this determination is that an operation pattern execution instruction has not been issued, the process waits until an operation pattern execution instruction is issued.

  On the other hand, if the result of determination in step S1001 is that an operation pattern execution instruction has been issued, in step S1002, the operation result search unit 110 selects process data, from the operation results accumulated in the operation result recording unit 109, Based on operation information such as operation results, an operation result most similar to the operation pattern currently being executed is searched.

  Next, in step S <b> 1003, the operation guidance unit 111 creates data necessary for guidance according to the current execution status from the operation results searched by the operation result search unit 110. Then, the display control unit 106 guides the operating procedure and the like to the operator on the display device 107 based on the data, and ends the process.

FIG. 6 is a diagram showing a display example of operation guidance in the present embodiment.
As shown in FIG. 6, a current position 601 and an expected route 602 in the operation pattern are displayed as operation guidance. Further, when an operation memo is input in the past operation results, an operation memo such as an operation caution is displayed in the remarks column 603. In addition, necessary items such as an operation amount and an operation time interval in each operation are displayed.

  Thus, for example, in the past operation results, the operator determines that it is more stable to increase the gas flow rate in several steps in operation 2, and if the record is left as an operation memo, The operator 2 can perform the operation 2 while being aware of this point. In addition, for example, in the past operation results, the operator is currently operating by leaving in the operation memo as know-how how to deal with variations in process data such as furnace temperature in the operation 4 stage. Can perform the operation 4 in accordance with the know-how.

  As described above, in a complex reaction system plant, a plurality of operation patterns are often advanced simultaneously. Even in such a case, since operation information (process data, operation results, operation memos, etc.) and operation patterns are linked and recorded as operation results, the operation of one plant by the operator is related to which operation pattern. It is possible to determine whether it is an operation. FIG. 7 is a diagram showing a display example of a change in hot metal temperature in the operation pattern for stabilizing the hot metal temperature, and FIG. 8 is a diagram showing a display example of a change in the furnace top temperature in the operation pattern for stabilizing the furnace top temperature. is there. Along with the operation guidance shown in FIG. 6, for example, a predicted change in process data such as the furnace temperature is also displayed on the display device 107.

  7 and 8, after the execution of the operation pattern that stabilizes the hot metal temperature, the operation pattern that stabilizes the furnace top temperature is started, and two operation patterns are being executed at the current position. For example, in the past operation results, the furnace top temperature drop is suppressed by the operation A shown in FIG. 8, and further the operation B starts to rise, and by performing the operation C, the rise of the furnace top temperature is stopped. It turns out that it is stable. That is, it is possible to immediately determine which operation corresponds to which operation pattern by associating the operation result with the change of the process data for each operation pattern.

  Even when the operation guidance shown in FIGS. 6 to 8 is displayed, the process data and the operation result in the operation pattern currently being executed are also recorded in the operation result recording unit 109 together with the operation pattern. Also, a new operation memo can be added or deleted while referring to the operation memo in the past operation results.

  As described above, in the present embodiment, the operation memo creation unit 104 creates the process data such as the temperature gradient, reaction time, etc. from the plant and the operation result by the operator and the operation of the operator based on the operation pattern being executed. The operation memo is linked to the operation pattern being executed as operation information and recorded as operation results. In addition, the operation result most similar to the operation pattern currently being executed is searched from the operation results accumulated in the operation result recording unit 109, and the subsequent predicted route is displayed as guidance on the display device 107.

  Thereby, the operator can operate the plant while referring to the process data recorded in the past operation results. In addition, since operation memos with precautions related to operation can be presented to the currently executing operator by experienced operators in the past, process data such as furnace temperature and reaction time can be added to process data such as blast furnaces. Even in a plant having a complex reaction system in which variations are likely to occur, it is possible to respond to the operation of the plant flexibly.

  In the present embodiment, the plant and the plant operation support apparatus 100 are separate devices, and process data and operation pattern execution instruction signals are exchanged via a wired or wireless network. It is also possible for the plant operation support apparatus of the invention to function as the same apparatus.

(Other embodiments according to the present invention)
The plant operation support apparatus 100 according to the above-described embodiment is specifically configured by a computer apparatus or computer system including a CPU, RAM, ROM, and the like. Therefore, in order to implement each function processing of the present invention, the computer program itself installed in the computer and its storage medium are also included in the present invention.

  As a storage medium for supplying the program, for example, flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R) and the like.

  Moreover, the said embodiment is only what showed the specific example in implementing this invention, and the technical scope of this invention should not be limitedly interpreted by these. That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

It is a block diagram which shows the function structural example of the plant operation assistance apparatus in embodiment of this invention. It is a figure which shows an example of the operation pattern in embodiment of this invention. In embodiment of this invention, it is a figure which shows the example of a screen on which the present position of the operation pattern currently performed was displayed. In an embodiment of the present invention, it is a figure showing an example of simultaneous progress of a plurality of operation patterns. It is a figure which shows an example of the operation pattern selection screen in embodiment of this invention. It is a figure which shows the example of a screen of the estimated route guidance in embodiment of this invention. In embodiment of this invention, it is a figure which shows the example of a display of the change of hot metal temperature in the operation pattern which stabilizes hot metal temperature. In embodiment of this invention, it is a figure which shows the example of a display of the change of the furnace top temperature in the operation pattern which stabilizes furnace top temperature. It is a flowchart which shows an example of the procedure which accumulate | stores the operation performance by the plant operation assistance apparatus in embodiment of this invention. It is a flowchart which shows an example of the procedure which performs the operation guidance by the plant operation assistance apparatus in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Plant operation support apparatus 101 Operation pattern database 102 Operation pattern operation condition determination part 103 Optimal operation pattern determination part 104 Operation memo preparation part 105 Operation pattern execution instruction part 106 Display control part 107 Display apparatus 108 Input device 109 Operation result recording part 110 Operation Results search part 111 Operation guidance part 201 Execution condition part 202 Execution part

Claims (8)

A plant operation support device for supporting operation by displaying a plurality of operation patterns on the screen of the display device to the operator in the operation of the plant,
The operation pattern includes an execution condition part in which operation conditions for executing the operation pattern are stored, and a plurality of operations by the operators and a subsequent operation based on operation results of process data after the operations are performed. A database in which a plurality of types of operation patterns are recorded , and an execution unit that is a pattern including process data determination for determining
Among a plurality of types of operation patterns recorded in the database, optimum operation pattern determination means for determining an operation pattern in which the operation condition stored in the execution condition unit is satisfied,
The operation pattern determined by the optimum operation pattern determining means is instructed to execute the plant based on the operation by an operator input , and then the operation result of the process data by the operation is input, and the process data determination is performed next. and work patterns execution instruction means for determining the operation,
The operation pattern executed instruction by the pre-SL operating pattern execution instructing means, and operating performance of the process data being executed in the plant, and operation result to the plant, and operation notes input from the input device by the operation of the operator recording means for operating information including records to record apparatus tying et the operation results,
Among the operation results recorded by the recording means, an operation result search means for searching an operation result similar to the operation pattern currently being executed based on the operation information;
The operation record search means based on the retrieved operation performance by subsequent predicted elapsed the display device chromatic characteristics and to pulp plant operation support apparatus to a display means for guidance displayed. The plant operation support apparatus according to claim 1 , wherein the display unit displays the predicted progress on the display device together with progress information of an operation pattern currently being executed and the operation memo. The operation record retrieval means, based on the feature amount including the operation time interval and the operation amount by the operator, according to claim 1 or claim, characterized in that to search the most similar operating performance and operating pattern that is currently being executed 2. The plant operation support apparatus according to 2. A plant operation support method for supporting operation by displaying a plurality of operation patterns on the screen of a display device to an operator in operation of the plant,
The operation pattern includes an execution condition part in which operation conditions for executing the operation pattern are stored, and a plurality of operations by the operators and a subsequent operation based on operation results of process data after the operations are performed. And a step of recording a plurality of types of the operation pattern in a database .
An optimum operation pattern determination step for determining an operation pattern in which the operation condition stored in the execution condition unit is satisfied, from a database in which a plurality of types of the operation pattern are recorded,
The operation pattern determined in the optimum operation pattern determination step is instructed to execute the plant based on the operation by the operator input , and then the operation data of the process data by the operation is input, and the process data determination is performed next. and work patterns execution instruction step of determining the operation of,
The operation pattern executed instruction prior Symbol operation pattern executed instruction step, the operating performance of the process data being executed in the plant, and operation result to the plant, and operation notes input from the input device by the operation of the operator a recording step of operating information including records to record apparatus tying et the operation results,
From the operation results recorded in the recording step, an operation result search step for searching operation results similar to the operation pattern currently being executed based on the operation information;
Features and to pulp plant operation support method to have a display step of the operation record search based on the retrieved operation results in step, the guidance displayed on the display device of the expected course of the later. 5. The plant operation support method according to claim 4, wherein in the display step, the predicted progress is displayed on the display device together with progress information of an operation pattern currently being executed and the operation memo. 6. Wherein in the operation record retrieval step, on the basis of the feature amount including the operation time interval and the operation amount by the operator, characterized by searching the most similar operating performance and operation patterns that are currently running claim 4, wherein Item 6. The plant operation support method according to Item 5 . A computer program for causing a computer to execute each step of the plant operation support method according to any one of claims 4 to 6 . A computer-readable storage medium storing the computer program according to claim 7 .

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