JP2014203229A - Operational support device for water facility plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To acquire an operational support device for a water facility plant which performs simulation of the water facility plant by forecasting a water demand amount of a demander based on past record data and by making use of the forecast demand amount.SOLUTION: A system diagram in which facility symbols showing water facilities are connected by connecting lines is created by a system diagram creation unit 14; the created system diagram is displayed on a monitor 1 by a system diagram display/monitor unit 8; a water demand amount of a demander is forecast by a demand amount forecasting unit 16; a water supply amount for water supply facilities is calculated based on the forecast demand amount by a simulation unit 9; water levels of a clean water reservoir and a water distribution reservoir for the water supply amount are calculated and displayed on the system diagram to confirm a proper water supply amount; the confirmed water supply amount is transmitted to a controller 4 via a plant data collection/control unit 10; and the controller which has received it controls the corresponding water supply facilities.

Description

  The present invention relates to an operation support apparatus for a water equipment plant that supports the operation of a water equipment plant such as a water and sewage system.

  In the conventional water equipment plant operation support apparatus shown in Patent Document 1, a water distribution network simulation is performed based on past data, online data, and manually input initial data, and is drawn on a screen. In addition to the simulation mode for executing this simulation, there is an editor mode. In the editor mode, initial data is corrected and parameters used for the simulation are adjusted by interactive manual input.

Japanese Patent Laid-Open No. 9-160900 (pages 4-5, FIG. 2)

Conventional operation support devices for water equipment plants have no support function for predicting and calculating the amount of water required based on past performance data and using the data.
For this reason, parameter adjustment in simulation, which is a key for operating stable plant equipment, is limited to skilled operators, and the adjustment of the value is highly likely to be performed manually.
As described above, the conventional water facility plant operation support apparatus cannot reduce the load of skilled operators, and has recently been problematic in that it does not lead to widening of monitoring target facilities and labor saving of operators. there were.

Here, terms used in the present invention will be described.
The water supply source is the water supply source, the customer is the consumer of water at home and factory, the demand is the amount of water required by the customer, and the pipeline is the pipe route that sends water to the customer The distribution reservoir and the clean water reservoir are facilities that store the water to be sent to the demand destination, and the pumps and valves are facilities that have a function of adjusting the amount of water to be delivered, and are referred to as water transmission facilities.
Operational support is a support function that is necessary to adjust the amount of water that the water supply equipment such as pumps and valves sends to the distribution area with respect to the amount of water that the customer needs. Simulation is a pump -While adjusting the amount of water supplied to the valve, repeatedly calculating and checking the water levels in the reservoirs and clean water basins so that water can be supplied according to the demand.

  The present invention has been made to solve the above-described problems, and predicts the demand amount of water at the demand destination based on past performance data, and uses this predicted demand amount to It is an object of the present invention to obtain an operation support apparatus for a water equipment plant that performs a simulation of the equipment plant.

  The operation support apparatus for a water facility plant according to the present invention is an operation support apparatus for a water facility plant connected to a controller for controlling water facilities including a water supply facility and a pond for supplying water to a demand destination. , A system diagram display means for displaying a system diagram in which equipment symbols indicating water equipment are connected by connecting lines, a demand quantity predicting means for predicting a demand amount of water at a demand destination based on past actual data, and this demand quantity Calculate the water supply amount of the water supply equipment so as to adapt to the water demand predicted by the prediction means, display the water level of the pond affected by this water supply amount on the system diagram, and check the calculated water supply amount And a plant control means for transmitting the amount of water confirmed by the simulation means to the controller and controlling the water supply equipment.

  According to this invention, it is an operation support apparatus for a water equipment plant connected to a controller that controls water equipment including a water supply equipment and a pond for supplying water to a demand destination, and the equipment symbol indicating the water equipment is provided. System diagram display means for displaying a system diagram connected by connection lines, demand amount prediction means for predicting the demand amount of water at the demand destination based on past actual data, water predicted by this demand amount prediction means Simulation means for calculating the water supply amount of the water supply equipment so as to adapt to the demand amount, displaying the water level of the pond affected by this water supply amount on the system diagram, and confirming the calculated water supply amount, and this simulation means Since the plant control means that controls the water supply equipment is transmitted to the controller, the water supply equipment that is confirmed by the Can.

BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 1 of this invention. It is a detailed block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 1 of this invention. It is a flowchart which shows the operation flow of the systematic diagram preparation part of the operation assistance apparatus of the water equipment plant by Embodiment 1 of this invention. It is a figure which shows the systematic diagram sample of the operation assistance apparatus of the water equipment plant by Embodiment 1 of this invention. It is a flowchart which shows the operation flow of the demand amount estimation part of the operation assistance apparatus of the water equipment plant by Embodiment 1 of this invention. It is a flowchart which shows the operation flow of the simulation part of the operation support apparatus of the water equipment plant by Embodiment 1 of this invention. It is a figure which shows the flow of data when controlling the pump and valve of the operation support apparatus of the water equipment plant by Embodiment 1 of this invention. It is a detailed block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 2 of this invention. It is an image figure which shows the demand amount adjustment which the water distribution tendency correction | amendment function of the operation support apparatus of the water equipment plant by Embodiment 2 of this invention performs. It is a detailed block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 3 of this invention. It is a detailed block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 4 of this invention. It is a detailed block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 5 of this invention.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
1 is a system configuration diagram showing an operation support apparatus for a water equipment plant according to Embodiment 1 of the present invention.
In FIG. 1, the controller 4 collects and controls the state of plant equipment 5 (water equipment) such as a pump. The operation support apparatus 2 performs simulation of the plant facility 5, creation and editing of a system diagram, and data setting of the plant facility. The control bus 3 connects the operation support apparatus 2 and the controller 4 to realize bidirectional information transmission. The monitor 1 is used to display a system diagram and simulation results handled by the operation support apparatus 2 and to set data, and may be a plurality of monitors.

FIG. 2 is a detailed configuration diagram showing an operation support apparatus for a water equipment plant according to Embodiment 1 of the present invention.
2, 1 to 5 are the same as those in FIG.
The operation support apparatus 2 collects the state of the plant equipment 5 in real time, displays the system diagram on the monitor 1, and then creates and edits the system diagram data, and the operation support apparatus online 6 that performs demand amount prediction and simulation. It consists of two devices, the operation support device offline 7, and these two devices are formed by a computer.
In FIG. 2, the operation support apparatus online 6 and the operation support apparatus offline 7 are described separately, but may be integrated into one apparatus.

  The operation support device offline 7 creates a system diagram in which equipment symbols indicating water supply equipment such as pumps and valves and plant equipment 5 such as ponds are connected by lines indicating piping equipment, editing means, and specifications of each equipment. When associating a system diagram creation unit 14 (system diagram creation means) having a function that can be input and edited, a system database 13 holding data created by the system diagram creation unit 14, and equipment symbols on the system diagram and plant equipment 5 And a plant database 15 for use. The plant database 15 reflects a plant database 12 described later by copying, and stores plant data indicating the state of the plant equipment 5 sent from the controller 4.

The operation support apparatus online 6 includes a system diagram display / monitoring unit 8 (system diagram display unit), a simulation unit 9 (simulation unit) having a demand amount prediction unit 16 (demand amount prediction unit), and a plant data collection / control unit. 10 (plant control means), a system database 11, and a plant database 12.
The system diagram display / monitoring unit 8 displays the system diagram on the monitor 1 from the system database 11 reflected by copying the system database 13 created by the system diagram creating unit 14 of the operation support apparatus offline 7, and then displays each plant The normal / abnormal operating state of the equipment is displayed in different colors, the demand amount predicted by the demand amount prediction unit 16 is displayed, or the water supply amount for 24 hours calculated by the simulation unit 9 is displayed in a trend graph. The alarm information of the plant equipment 5 is displayed, and the plant data collected by the plant data collection / control unit 10 is displayed in the form of a trend graph. The state of each plant equipment 5 during the operation of the simulation unit 9 described later is displayed.

The demand amount prediction unit 16 predicts the amount of water required at a demand destination such as a home / factory based on the actual data in the history database 17 that records past weather, temperature, water distribution amount, and the like.
The simulation unit 9 automatically calculates the optimum water supply amount of the water supply facility for 24 hours from the present time so as to satisfy the demand amount predicted by the demand amount prediction unit 16, and performs simulation based on the data or the plant facility 5 The water supply equipment of the plant equipment 5 is controlled by giving a command to the controller 4 to be controlled. The calculation of the water supply amount is performed on the data in the plant database 12, thereby realizing a simulation on actual data of the plant equipment 5 instead of virtual.

The plant data collection / control unit 10 stores the real-time plant data transmitted from the controller 4 via the control bus 3 in the plant database 12, or transmits the water supply amount calculated by the simulation unit 9 to the controller 4. Or Thereby, the simulation part 9 can refer plant data online, or can control water supply equipment.

FIG. 4 is a diagram showing a system diagram sample of the operation support apparatus for a water equipment plant according to Embodiment 1 of the present invention.
In Fig. 4, as a system diagram sample, water is drawn from the water source to the water purification pond by the water intake pump, water is sent from the water basin to the water distribution area by the water supply pump and the inflow valve, and the water is drawn from the water distribution area to the customer. Has been.

FIG. 7 is a diagram showing a data flow when controlling the pumps and valves of the operation support apparatus for a water equipment plant according to Embodiment 1 of the present invention.
7, 3, 4, and 8 to 12 are the same as those in FIG. FIG. 7 shows the operation procedure of the operation support apparatus online 6 and the controller 4, and (a) the water supply amount of the intake pump, the inflow valve, and the water supply pump is calculated by the simulation unit 9. (B) The calculated water supply amount by the plant data collection / control unit 10 is transmitted to the controller. The controller 4 controls (c) the water supply amount of the water intake pump, the inflow valve, and the water supply pump facility. Shows the procedure.

Next, the operation will be described.
First, the operation flow of the system diagram creation unit 14 will be described with reference to FIG.
When creating a system diagram, the facility symbol placement function in the system diagram creation unit 14 first places equipment symbols (step A2). The equipment symbol placement function displays a list of equipment icons and places the symbol of the selected equipment at a specified position. For example, facility symbols such as a water intake source, a water intake pump, a water purification pond, a water supply pump, and an inflow valve are arranged as in the system diagram sample of FIG.

  Next, two facility symbols to be connected are designated by a mouse click or the like by the connection function of the system diagram creation unit 14, and the arranged facility symbols are connected (step A3). The connection function creates connection information between equipment symbols and displays a line with an arrow indicating piping equipment such as the system diagram sample of FIG. When branching, connection information is created by automatically recognizing the presence or absence.

Next, the equipment specification is input by the equipment specification input function (step A4). The equipment specification input function displays a screen for inputting the specification of the designated equipment symbol, and saves the equipment specification data by performing data input and registration operations individually.
Next, the equipment tag assignment function assigns the tag data assigned to the plant equipment data to the arranged equipment symbols, and associates the equipment on the system diagram with the plant equipment data (step A5). The plant equipment tag assignment function displays the list of plant equipment 5 at the site from the plant database 15 and specifies both equipment symbols arranged on the system diagram and the equipment on the list. Set the tag.

Up to the above, the function relating to the new creation of the system diagram has been described, but the system diagram creating unit 14 also holds the correction function and the deletion function.
Finally, the data is stored in the system database 13 by the data storage function (step A6). The data storage function allows the operator to check the consistency between the equipment symbol of the system diagram created so far and the plant equipment 5 by the storage operation, and if there is no error, display the system diagram on the online side and calculate the water supply amount Then, data that can be simulated is created and stored in the system database 13.
If there is an error, the error symbol is displayed after changing the equipment symbol of the error.

Next, the operation flow of the demand amount prediction unit 16 will be described with reference to FIG.
The demand amount prediction unit 16 is a function for predicting the demand amount of water required in a home / factory, etc., and the amount is calculated by adding the factors of weather and temperature to the past demand result data. Do. The operator sets information on the weather, temperature, and prediction classification of the current day and the next day from the screen as the demand amount prediction conditions (step C2).
The weather is set to the expected weather on that day and the next day. The maximum temperature is set to the highest temperature expected on the current day and the next day. A day of the week classification or a special classification is set as the prediction classification (step C3). The day of the week classification indicates Monday-Friday, Saturday, Sunday, and public holidays, and the special classification indicates conditions predicted by special days such as GW (May consecutive holidays), Bon Festival, New Year, water distribution restrictions, storms, and events.

When the forecast classification is the day of the week classification, the weather, temperature, and demand data are acquired from the history database 17 from the present to the past, and the average demand for the same day of the week as the forecast date is calculated. The predicted value is calculated by adding the amount affected by the temperature (step C4).
The amount affected by weather and temperature is calculated from the demand, weather, and temperature data acquired from the history database 17 by using multiple regression analysis. Further, the number of days in the past when extracting the performance data can be changed as a parameter.

  When the prediction classification is a special classification, since the number of samples is small, the average value obtained from the history database 17 is used as the demand prediction value without using the multiple regression analysis such as the day of the week classification. Step C5). When it is necessary to correct the demand amount prediction value such that the calculation result does not match the current state due to a sudden change in weather or the like, a function is provided that allows the operator to manually correct the demand amount prediction value (step C6). .

Next, the operation flow of the simulation unit 9 will be described with reference to FIG.
The simulation unit 9 adjusts the water supply amount of the pump / valve and repeats calculation / confirmation of the water level change at that time to determine the water supply amount to be used in operation. Such information is displayed on the system diagram by the system diagram display / monitoring unit 8.
First, the demand amount input means is displayed, and the operator designates the demand amount by adopting the above-mentioned predicted value or inputting the demand amount (step B2).
Then, while adjusting the amount of water delivered by the pump / valve, the water level of the distribution reservoir and the clean water reservoir at that time is calculated, and the influence is confirmed by the water level trend graph (step B3). A simulation is repeatedly performed until stable operation can be determined.

With the monitoring start operation (start of step B4), the water supply amount determined by the simulation is transmitted to the controller 4 by the pump and valve (step B5). Thereafter, the controller 4 controls the pump and valve. The data flow at that time is shown in FIG.
After that, the water level of the water purification pond and distribution area is monitored, the water level is calculated based on the amount of water sent in real time from the local plant equipment 5, and the water level of the pond exceeds the upper limit / lower limit water level of operation. Whether or not to do so is monitored (step B6).

  The cycle of water supply calculation, simulation, water supply transmission, and water level monitoring as described above is repeatedly executed at regular intervals to cope with changes in the state of the plant equipment 5 so as to be able to cope with the state of each plant equipment that changes with time. It can be operated accordingly (flow B7).

  According to Embodiment 1, since the demand amount is predicted and the simulation is executed, the water supply facility can be operated stably, effectively, and efficiently with respect to the change in the demand amount.

Embodiment 2. FIG.
FIG. 8 is a detailed configuration diagram showing an operation support apparatus for a water facility plant according to Embodiment 2 of the present invention.
In FIG. 8, 1 to 17 are the same as those in FIG. In FIG. 8, the simulation unit 9 is provided with a water distribution tendency correction function 18 (demand amount correction means) that corrects the demand amount prediction value as specified by the operator.

FIG. 9 is an image diagram showing the demand amount adjustment performed by the water distribution tendency correction function of the operation support apparatus for a water equipment plant according to Embodiment 2 of the present invention.
In FIG. 9, the horizontal axis represents time, and the vertical axis represents demand. The water distribution tendency correction function 18 allows the demand to be adjusted to “normal”, “more”, and “less”.

In the first embodiment, the demand amount is predicted by the simulation unit 9, the optimum water supply amount of the water supply equipment such as a pump and a valve that matches the demand amount is calculated based on the data in the plant database 12, and the calculated transmission amount is calculated. The simulation that can be monitored after controlling the water supply facility with the amount of water has been described. For example, there is a pool opening, so if one day has a characteristic that the daily demand for water increases more than usual, the water supply amount is There was a need to fix.
In the second embodiment, in order to prepare for such a case, a water distribution tendency correction function 18 as shown in FIG. 8 is provided, and the operator designates setting parameters of “normal”, “more”, and “less”. The demand volume forecast value was corrected, and the water supply volume was corrected.

  As shown in the image of demand adjustment in Fig. 9, it is possible to calculate the amount of water delivered according to the demand with the “large” and “small” settings, and respond to fluctuations in demand due to special circumstances. In that respect, stable water equipment plant operation can be expected.

  According to the second embodiment, since the operator can adjust the demand amount, it is possible to cope with fluctuations in the demand amount due to special circumstances and to operate the water facility plant stably.

Embodiment 3 FIG.
FIG. 10 is a detailed configuration diagram showing an operation support apparatus for a water facility plant according to Embodiment 3 of the present invention.
In FIG. 10, 1 to 18 are the same as those in FIG. In FIG. 10, the operation history storage function 19 (operation history storage unit) that stores the operation history in the operation history database 21 and the operation history reproduction function 20 that reproduces the operation history stored in the operation history database 21 are stored in the simulation unit 9. (Operation history reproducing means).

  In the first embodiment, the simulation unit 9 predicts the demand amount, adjusts the optimum water supply amount of the water supply facility that matches the demand amount based on the data in the plant database 12, and sets the water supply facility with the adjusted water supply amount. The simulation that can be monitored after the control has been described. In the third embodiment, the operation history storage function 19 and the operation history reproduction function 20 are provided in the simulation unit 9 as shown in FIG.

  In the third embodiment, the operation history storage function 19 stores the result of calculating the water supply amount (including the operation details) and the subsequent plant data together with the subject in the operation history database 21, and the operation history replay function 20 stores the subject. When playback is specified, the status and operation details of the system when the simulation starts on the screen different from the current system diagram, the status and operation details of the system in the middle, and the last status can be displayed. .

  According to the third embodiment, it is possible to plan the water supply amount while referring to the past operation examples, and to perform highly accurate operation.

Embodiment 4 FIG.
FIG. 11: is a detailed block diagram which shows the operation assistance apparatus of the water equipment plant by Embodiment 4 of this invention.
11, 1 to 21 are the same as those in FIG. In FIG. 11, the simulation unit 9 is provided with a monitoring interval adjustment function 22 (time interval adjustment means) that adjusts the interval of time for monitoring.

  In the first embodiment, the demand amount is input by the simulation unit 9 to adjust the water supply amount of the optimal equipment such as pumps and valves based on the data in the plant database 12, and the water supply facility with the adjusted water supply amount In the fourth embodiment, the monitoring interval adjustment function 22 is provided in the simulation unit 9 as shown in FIG. 11, and the operation flow of the simulation unit 9 in FIG. The interval of the monitoring time explained in (1) can be adjusted.

  According to the fourth embodiment, this makes it possible to perform detailed monitoring such as monitoring the trend by shortening the interval in a time period in which the amount of water used is large, and operational efficiency can be achieved in that it can respond to a change in state realistically. improves.

Embodiment 5. FIG.
FIG. 12 is a detailed configuration diagram showing an operation support apparatus for a water equipment plant according to Embodiment 5 of the present invention.
In FIG. 12, 1 to 22 are the same as those in FIG. In FIG. 12, an equipment definition file 23 (file) having equipment specification data is provided in the operation support apparatus offline 7 so that it can be used by the system diagram creation unit 14.

  In the first embodiment, the screen for inputting the specifications of the specified equipment symbol is displayed, and the equipment specification input function for saving the data of the equipment specifications by performing data input and registration operations has been described ( In the fifth embodiment, as shown in FIG. 12, the specifications of the equipment are not entered in the form defined by the spreadsheet software, as shown in FIG. From the input equipment definition file 23, data of equipment specifications can be taken into the system diagram creation unit 14.

  According to the fifth embodiment, the specifications of all the facilities can be input at a time, and the labor saving of data input can be achieved.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

1 monitor, 2 operation support device, 3 control bus, 4 controller, 5 plant equipment, 6 operation support device online, 7 operation support device offline, 8 system diagram display / monitoring unit, 9 simulation unit, 10 plant data collection / control unit , 11 System database, 12 Plant database, 13 System database, 14 System diagram creation unit, 15 Plant database, 16 Demand forecast unit, 17 History database, 18 Water distribution tendency correction function, 19 Operation history storage function, 20 Operation history replay function , 21 Operation history database, 22 Monitoring interval adjustment function, 23 Equipment definition file.

Claims (7)

An operation support device for a water facility plant connected to a controller for controlling water facilities including a water supply facility and a pond for supplying water to a demand destination,
A system diagram display means for displaying a system diagram in which equipment symbols indicating the water equipment are connected by connection lines;
A demand forecasting means for forecasting the demand of water at the demand destination based on past performance data,
In order to adapt to the water demand predicted by the demand forecasting means, the water supply amount of the water supply facility is calculated, and the water level of the pond affected by the water supply amount is displayed on the system diagram, Simulation means for confirming the calculated water supply amount,
And an operation support apparatus for a water equipment plant, comprising a plant control means for transmitting the water supply amount confirmed by the simulation means to the controller and controlling the water supply equipment.   The operation support device for a water equipment plant according to claim 1, wherein the calculation of the water supply amount by the simulation means is for 24 hours.   3. A water facility plant operation support apparatus according to claim 1, further comprising a system diagram creating means for creating the system diagram in accordance with a user instruction.   The apparatus includes a demand amount correcting unit that corrects the predicted water demand by specifying a parameter set for correcting the water demand predicted by the demand prediction unit. The operation support device for a water facility plant according to any one of claims 1 to 3, wherein the operation support device is a water facility plant. Operation history storage means for storing the water supply amount calculated by the simulation means and the state of the water supply equipment controlled based on the water supply amount as an operation history,
The operation support device for a water equipment plant according to any one of claims 1 to 4, further comprising operation history reproduction means for reproducing the stored operation history.   6. The water according to claim 1, wherein the simulation means is executed at a predetermined time interval, and further includes a time interval adjusting means for adjusting the predetermined time interval. Equipment plant operation support equipment.   The system diagram creating means is configured so that specification data for the water facility displayed by the system diagram can be input using a file preliminarily input for the water facility using spreadsheet software. The operation support device for a water equipment plant according to any one of claims 1 to 6, wherein the operation support device is a water facility plant.

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