JPH09150349A - Production process display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly make a decision concerning the setting of an operating condition and progress management while referring to respective information by displaying production plan information and execution-operation information of a plant in a comparative form. SOLUTION: By means of operating condition predicting means 33, changes in a working condition of the subject device (equipment), a utility balance, and the like are predicted on the basis of a deviation between process data, plan data, and present data for the day, and the predicted result is displayed on a screen of a display device DSP as a guidance. By means of an execution condition monitoring means 34, data from respective production equipment constituting a plant are inputted, and the operating condition of the day is monitored, while a progress condition is checked whether the process of the day is carried out as it is planned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production process display device provided with a display device such as a CRT or a liquid crystal display device, and more specifically, it monitors the operating conditions of a plant or manages the progress based on the production process. The present invention relates to a production process display device.

[0002]

2. Description of the Related Art Conventionally, there is a distributed control system (DCS) for controlling and operating a plant and monitoring equipment by using a display device such as a CRT or a liquid crystal display. In these devices, most of the information is related to the process amount, the deviation from the set value, the control output, etc. handled by various internal instruments configured in the control device.

However, in the plant operation, the operating amount of each equipment and control device and each operating condition for achieving the target property are set according to the production plan, and the operation adjustment is performed.
Since the production plan information and the plant operation information (actual results) are not unified, both information is confirmed individually.
There was a problem that the production process could not be managed efficiently.

From this point of view, a workstation or a personal computer is used to schedule the production brand and manage the quality, inventory, etc. of the manufactured product by connecting to the DCS.
A production system is also proposed in which an integrated instrument room is used to perform the operation via AN (for example, Instrumentation 1992 Vo.
l. 35 No. 1 pp. 42-46 "Transformation into a production system that integrates flexible new technologies").

[0005]

However, the system proposed here shows the concept of a next-generation production system and does not disclose a specific configuration. The present invention has been made in view of such a point, and unifies production plan information and operation information of the plant, while closely coordinating the two pieces of information, the setting of operation conditions, the intention related to progress management, etc. It is an object of the present invention to provide a production process display device that can support a decision.

[0006]

The present invention which achieves the above object is a production process display device for monitoring the operating condition of a plant and managing the progress based on the production process. The production process creation means for creating the production process and the schedule function (the process of the day) that has the calendar function and the monthly or weekly production process created by the production process creation means each time the date changes Based on the schedule plan editing means to be edited and the process for the current day edited by the schedule plan editing means, the operating conditions of the related production equipment are predicted, and the operating condition prediction means for displaying the prediction result as guidance, and the production equipment Set the plant operation conditions by inputting data from and monitoring the operating conditions of the day and the execution condition monitoring means to monitor whether the processes for the day are being executed as planned. It is configured and the progress management to allow along the production process production process display device.

[0007]

The production process creating means, which is previously provided with plant information and the like, creates a production process on a monthly or weekly basis by giving a production order. The schedule plan editing means edits the schedule plan of the corresponding date from the monthly or weekly production process. The schedule edited and obtained here can be manually adjusted by the operator's judgment and can be optimized.

The operating condition predicting means predicts an operating condition based on the schedule for the current day, and displays a guidance of an operation amount.
In addition, the execution situation monitoring means constantly monitors whether the plant operation is being performed according to the process, and outputs a warning or the like if the required operation is not yet performed at the time determined by the schedule. The progress status (processing amount, product yield, etc.) is displayed.

[0009] As a result, the plant operation and the production process are closely linked to each other when the predetermined production is performed while adjusting the operating conditions and production conditions (processing amount, quality, product type, etc.) of the day based on the production process. It is possible to set plant operation conditions,
To be able to support decision making regarding progress management.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a structural conceptual diagram of a plant production system to which the present invention is applied. In the figure, P
LT is a general representation of the plant, and assuming a refinery, a crude oil tank 10, a distillation apparatus 11 for distilling crude oil to obtain a base fraction (naphtha, heavy gas oil, heavy oil, etc.) 11,
Refining device 12 for desulfurization, reforming, decomposition, polymerization, refining of base material fraction, sulfur recovery device and wastewater treatment device 13, and a plurality of base materials for storing various gasoline mixed base materials obtained by refining The tank 14 includes a blender 15 for blending various gasoline mixed base materials, a tank 16 for storing the obtained petroleum product, a petroleum product shipping facility 17, and the like.

In each of these facilities, various sensors SEN, actuators VR such as valves, etc. are installed at predetermined locations. FC1 and FC2 are control stations for controlling the plant PLT, and various sensors SEN
Signal is input and a control output is output to an actuator VR such as a valve.

The OPS is a production process display device to which the present invention is applied, and is provided with a display device DSP such as a CRT for managing and monitoring the control operation situation and the production process. The production process display device OPS is connected to each control station FC via a communication line BS1 and controls various data collected by the control station FC and various instruction signals for performing plant operation. It has functions such as transmission to the station side. Here, the production process display device may be configured in the operator station OPS, or may be configured in a production process processing workstation WS other than this.

The PC is a production process creation device, for example, a general-purpose personal computer can be used, and the production process display device OPS, via a general-purpose communication line BS2,
It is connected to a workstation WS for production process processing. FIG. 2 is a functional block diagram as a production process display device according to the present invention. Each of the functional blocks shown here collectively represents those configured in the production process display device OPS, the production process processing workstation WS, and the personal computer PC shown in FIG.

Reference numeral 31 is a production process creating means for creating a production process on a monthly or weekly basis, given a production order. This production process creating means may be realized by scheduling package software installed in a personal computer PC, for example. As such scheduling package software, for example, "Exanalp (registered trademark)" sold by the applicant company can be used.

Numeral 32 is a schedule plan editing means having a calendar function, and a schedule plan (process of the current day) is created from the monthly or weekly production process created by the production process creating means 31 every time the date changes. It is extracted and edited, and the edited result is displayed on the screen of the display device DSP as a production process table of the corresponding day. Reference numeral 33 denotes an operating condition predicting means, which predicts the operating conditions of the related production equipment based on the process plan for the current day edited by the schedule plan editing means 32, and displays the predicted result as guidance on the screen of the display device DSP. It has a display function.

Reference numeral 34 is an execution condition monitoring means, which is a plant PL.
It has a function of inputting data from each of the production facilities constituting T, monitoring the operating condition of the day, and confirming the progress condition (actual result) of whether the process for the day is executed as planned. Reference numeral 35 is a data collecting means, which is a communication line BS1.
Various data handled by each control station FC, such as flow rate, pressure, temperature, process amount such as property, alarm signal, event information, etc., are cyclically collected through the database and constructed as a database to monitor the execution status. Means 3
4 are configured to be accessible.

FIG. 3 is a diagram showing an example of the internal configuration of the operating condition predicting means 33 and the execution situation monitoring means 34 in FIG. In the execution situation monitoring means 34, 41 is a plan data storage means for storing the schedule plan data created by the schedule plan editing means 32. A current data storage means 42 stores data indicating the operating condition of the corresponding device from the respective data collected by the data collection means 35. Reference numeral 43 is a comparative evaluation means, which reads out the plan data and the actual data from the respective storage means 41, 42 for comparative evaluation.
Using the result, the deviation calculating means 44 calculates the deviation between the schedule and the current driving situation.

In the operating condition predicting means 33, 51 is a current operating condition model, 52 is a recondition derivation model, and these are constructed by including a model simulating a target device. Reference numeral 53 is a simulation means using each of the models 51 and 52. The deviation (deviation) data between the schedule plan given by the deviation calculation means 44 and the current driving situation is given to each model to perform the simulation, and the simulation is performed in accordance with the schedule plan. Find the driving conditions for the driving situation. Also, the recovery time (time until the deviation disappears) is predicted. The operating conditions and the recovery time predicted here are displayed on the display device DSP as guidance.

The operation of the apparatus thus configured will be described below. The production process creating means 31 is realized by, for example, a personal computer installed in the production control department, and a production plan is made by inputting a monthly or weekly production order and constraint conditions. When a production plan is created, a schedule for realizing the plan is generated for each facility device (or system) or for each juve, for example.

For example, when the equipment is a distillation apparatus (TOP) or a naphtha catalytic reformer (PL), the amount of treatment or operation, operation mode, switching time, crude oil type,
Crude oil composition ratio, product oil type, target properties, etc. are determined. The generated monthly or weekly schedule results are
Operator station OP via the communication line BS2 of
S, transmitted to the workstation WS side and stored there. In the operator station OPS and the workstation WS, the saved monthly or weekly schedule results can be viewed by the operator as a monthly or weekly process chart on the screen of the display device DSP as required.

The schedule plan editing means 32 automatically extracts the current day from the schedule result indicating the monthly process or the weekly process and edits the schedule plan every time the date changes.
The process for the current day is generated and displayed on the screen of the display device DSP. Further, the execution situation monitoring means 34 refers to the data collected by the data collecting means 35 to display the actual data, and at the same time, the operation situation of the day (increase / decrease in throughput, change of oil type, etc.).
Is being executed according to the scheduled time, and if it is not executed or the actual data exceeds the range of the target property, an alarm instruction is output. As an alarm instruction, the display is reversed, blinking is performed, or a voice is output.

The operating condition predicting means 33 determines how the operating conditions, utility balance, etc. of the corresponding device (equipment) change based on the process data for the current day, the deviation between the plan data and the current data, and the like. Prediction is performed, and the prediction result is displayed as guidance on the screen of the display device DSP. For example, (a) Predict the production amount of sulfur from the operating conditions (processing amount, raw material properties, target product properties) of multiple desulfurization devices, calculate the operating balance of multiple sulfur recovery devices, and provide guidance on operation adjustment guidelines. To do.
(B) The amount of wastewater is predicted from the operating conditions (treatment amount, raw material properties, target product properties) of a plurality of devices, the operating balance of a plurality of wastewater treatment devices is calculated, and guidance for operation adjustment is provided. (C) Operating conditions of hydrogen generator / consumer (processing amount,
Predict the hydrogen balance from the raw material properties and target product properties), calculate the operation of the hydrogen production equipment and the amount of exchange between the equipment, and provide guidance for operation adjustment guidelines. (D) Predict the fuel / steam / electric power balance from the operating conditions of each device and provide guidance for operation adjustment.

In these, the guidance display is displayed by expanding the screen by designating a soft key provided in the screen showing the production process table, or by opening a window. FIG. 4 is a diagram showing an example of a production process table displayed on the screen of the display device DSP.

Here, the production process table for the current day (20 days) in the distillation system of the plant is shown for each device constituting the distillation system from the upper left of the screen, TOP (normal pressure distillation device), NH (naphtha water). Additive desulfurization equipment) system, PL (naphtha catalytic reforming equipment) system, from the top right of the screen, DH (light diesel oil hydrodesulfurization equipment) system, 2HD (light oil hydrodesulfurization equipment) system, SH (sodium hydrosulfide equipment) whole system With respect to the above, the numerical data are shown by comparing the plan, actual results, and target properties.
Further, each of these numerical data can be displayed on a bar graph, a pie chart, or the like, if necessary.

Thus, it is possible to monitor each system whether there is a difference from the plan. In the lower right of the screen, the marginal profit is displayed for each system in comparison with the plan and the actual result, so that the operation execution situation can be grasped in terms of cost. Further, a soft key for guidance display is allocated to the lower part of the screen, and here, a specified key operation is performed to open the guidance display screen. In the guidance display, the operating conditions for recovering the plan, the recovery time until the operating state according to the plan, and the like, which are derived from the simulation results using the model, are displayed.

In the above description, on the screen showing the production process table, when each device (equipment) is not executed according to the process, a guidance display or an alarm for teaching the operator the attention or the action to be taken is given. A configuration may be added in which an alarm summary or the like indicating the history or the like is automatically displayed by a window or the like under the instruction of the operator or when an alarm occurs.

[0027]

As described in detail above, the present invention provides
It is configured so that production plan information and plant execution / operation information can be centralized and displayed on a single screen in a way that they can be used to set operating conditions, manage progress, etc. It is possible to make appropriate decisions regarding the intentions involved.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of the configuration of a plant production system to which the present invention is applied.

FIG. 2 is a functional block diagram as a production process display device according to the present invention.

FIG. 3 is a diagram showing an example of an internal configuration of a driving condition prediction unit 33 and an execution condition monitoring unit 34 in FIG.

FIG. 4 is a diagram showing an example of a production process table displayed on the screen of a display device DSP.

[Explanation of symbols]

 PLT plant FC1, FC2 control station BS1, BS2 communication bus OPS operator station DSP display device PC personal computer 31 production process creation means 32 schedule plan editing means 33 operating condition prediction means 34 execution condition monitoring means 35 data collection means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shingo Isshiki 1 Izumiko Kosan Co., Ltd. 1-1 Tsumagashita-cho, Shikama-ku, Himeji-shi, Hyogo Prefecture

Claims (3)

[Claims] 1. A production process display device for monitoring the operating conditions of a plant and managing the progress based on the production process, the production process creating means for creating a production process on a monthly or weekly basis, and a calendar. It has a function and it is edited by the schedule plan editing means for editing the schedule plan (process of the day) of the corresponding day from the monthly or weekly production process created by the production process creating means each time the date is changed. Based on the process for the same day, the operating condition predicting means that predicts the operating condition of the related production equipment and displays the prediction result as guidance, and inputs the data from the production equipment to monitor the operating condition of the day, Equipped with execution status monitoring means to monitor whether the processes for the current day are being executed as planned, and configured so that plant operation condition settings and progress management can be performed along the production process Production process display device. 2. The production process according to claim 1, wherein the execution situation monitoring means has a function of outputting an alarm when the target equipment is not executed as scheduled along the process of the current day or is not executed according to the schedule. Display device. 3. The execution status monitoring means is a plant operation amount,
2. The production process display device according to claim 1, which has a function of displaying whether or not each product production amount has been achieved according to the process of the day, in a form of being compared with the progress situation (actual result) with respect to the planned quantity at the time of monitoring.