JPH05202536A - Water distribution simulation device - Google Patents

Abstract

PURPOSE:To estimate the dynamic water pressure balance of the whole pipeline net easily by setting the plane arrangement relation of the pipeline network according to an X-Y coordinate plane, and by displaying ground height and dynamic water pressure according to the respective conduit line sections of the pipeline network, with a Z coordinate. CONSTITUTION:By a front-end processor 1, a pipeline network chart is read out of a pipeline network chart file 7A, and when the input of analysis condition from an input device 4 is provided, then an input model is created to be housed in an input model file 7B. Besides, by a hydraulic analysis processor 2, analysis object data are read out of the file 7B, and the flow speed and dynamic water pressure of respective conduit lines are found to be housed in an analysis result file 7C. Then, by a back-end processor 3, from the file 7C, data are read, and every conduit unit, plane arrangement data at both the end sections are set to be X-Y coordinate data, and land height data and dynamic water pressure data in the coordinate are extracted in a Z coordinate and are developed in working memory. Besides, when the memory data are housed in video memory, then a three-dimensional dynamic water pressure gradient chart is displayed on a display device 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment device that generates as an input model the amount of water taken out from each pipe portion that constitutes a pipe network, and an input model generated by the pretreatment device. The hydraulic analysis processing device for calculating and deriving the hydraulic pressure of the pipe network, and the post-processing device for outputting the analysis result by the hydraulic analysis processing device, the post-processing device, all of the pipe network Alternatively, the present invention relates to a water distribution simulation device configured by providing display control means for displaying a part of ground height and a part of dynamic water pressure on the same coordinate axis.

[0002]

2. Description of the Related Art As a water distribution simulation device of this type, the post-treatment device is a coordinate system that represents a planar arrangement length of all or some of the pipelines forming the pipe network, and the corresponding ground height. And a coordinate axis indicating the hydraulic pressure are used for two-dimensional display. That is, as shown in FIG. 3, the route from point A to point F (A → B →
C → D → E → F), the output file is CR
When displayed on a display device such as T, it was displayed as a hydraulic pressure gradient line as shown in FIG. The hydraulic pressure gradient line shows the horizontal arrangement length of the pipeline on the horizontal axis and the ground height and the hydraulic pressure on the vertical axis, showing the change in the hydraulic pressure shown for each section, and the gradient is large. It is a graph showing that the greater the pipeline loss, the greater the difference with the ground height is the effective head, and the greater the amount, the better the water output.

[0003]

However, since the above-mentioned prior art displays the hydraulic pressure gradient line as shown in FIG. 5 for the route selected in the pipe network as shown in FIG. 3, In order to evaluate the entire network, it is necessary to perform multiple route selection operations and multiple display processes to cover all the pipelines that make up the network, which is not only extremely complicated work, There is a drawback that it is difficult to evaluate the overall hydraulic pressure balance. An object of the present invention is to eliminate the above-mentioned conventional drawbacks.

[0004]

In order to achieve this object, a characteristic configuration of a water distribution simulation device according to the present invention is that the display control means is provided in a planar arrangement relation of all or a part of the pipe network, and the corresponding relation. The point is that it is configured to perform a three-dimensional display showing the ground height and the dynamic water pressure.
In the above-mentioned configuration, the post-processing device converts the three-dimensional display into a two-dimensional display that represents the planar arrangement length of the pipelines that form the pipe network and the corresponding ground height and hydraulic pressure. Means are preferably provided. further,
It is preferable that the post-processing apparatus is provided with a selection unit that selects a pipeline that is converted from the pipeline to the two-dimensional display by the conversion unit.

[0005]

The display control means causes the planar layout of the whole or a part of the pipe network to correspond to the XY coordinate plane, and displays the ground height and the hydraulic pressure corresponding to each pipe line portion of the pipe network in the Z coordinate. Therefore, the ground height and the hydraulic pressure of the entire pipe network displayed can be visually checked, and the overall dynamic pressure balance can be evaluated very easily in a short time. Further, when the conversion means converts the three-dimensional display into a two-dimensional display showing the planar arrangement length of the pipelines forming the pipeline network and the corresponding ground height and hydraulic pressure, the detailed pipeline section can be obtained. The ground height and hydraulic pressure can be evaluated.

[0006]

As described above, according to the present invention, it is possible to provide a water distribution simulation device which can very easily evaluate the hydrodynamic pressure balance of the entire pipe network and can evaluate the hydrodynamic pressure balance of each pipe line in detail. .

[0007]

EXAMPLES Examples of the present invention will be described below. As shown in FIG. 2, the water distribution simulation device is generated by a pretreatment device (preprocessor) 1 that generates, as an input model, the amount of water taken out from each pipe portion that constitutes the pipe network, and the pretreatment device 1. Hydraulic analysis processing device (solver) 2 for calculating and deriving the hydraulic pressure of each part of the pipe network for each set time with respect to the input model, and the hydraulic analysis processing device 2
And a post-processing device 3 for outputting an analysis result according to the above-mentioned configuration to form an arithmetic processing unit, and an input device 4 and C composed of a keyboard, a digitizer, a mouse and the like
A display device 5 such as an RT, an output device 6 such as a printer, and a storage device 7 such as a magnetic disk device are connected to the arithmetic processing unit.

As shown in FIG. 6, the pretreatment device 1 is
Reads the network diagram as shown in FIG. 3 to be analyzed from the network diagram file 7A, displays it on the CRT, and when the analysis condition is set and input from the input device 4, the analysis condition is displayed. An input model is generated based on this and stored in the input model file 7B. More specifically, in addition to the drawing information as shown in FIG. 3, the pipe network diagram file includes attribute information for managing pipe diameters, pipe lengths, burial depths, and connection information of the constituent pipelines. The input model is a pipeline (all pipelines in this example) necessary for analysis, which is picked up by an operator using a mouse in the network diagram displayed on the CRT.
It is composed of attribute information about the pipeline and water amount data extracted from the pipeline input from the keyboard.

As shown in FIG. 7, the hydraulic analysis processing apparatus 2 uses a mesh flow rate using a pipeline take-out model in which the taken-out water quantity model is sequentially set along the pipeline. The flow velocity and hydraulic pressure of each pipeline are obtained by calculating and deriving the pipeline flow rate using the method. That is, the analysis target data is read out from the input model file 7B, and a nonlinear simultaneous algebraic equation whose variable is the unknown flow rate of each closed circuit is calculated based on the water head closing conditional expression for each closed circuit constituting the pipe network to be analyzed. Derived, Newton-Ra
Solve using the phson method. Set time (eg 1 hour)
When the analysis of one day's analysis (24 times for 24 hours) is completed with respect to the amount of water taken out for each case, the analysis result is stored in the analysis result file 7C corresponding to the input model.

As shown in FIGS. 1 and 8, the post-processing device 3 reads the analysis result file 7C and converts the numerical data stored in the analysis result file 7C into various graph data which are easy for a person to understand. The output file generating means 3A for generating the converted output data and the output control means 3B for outputting the contents of the output file 7D to the output device 6 are included. The output control means 3B is, for example, a CRT. The display control means 3B performs a three-dimensional display showing the planar layout relationship of all or part of the net and the corresponding ground height and dynamic water pressure.

More specifically, the display control means 3B constructs the pipe network from the analysis result file 7C based on the analysis data such as the hydraulic pressure derived by the water distribution analysis processing device 2 and the attribute information of the pipe to be analyzed. For each pipeline unit (referring to the pipeline between the pipeline and the connection point between pipes), the planar arrangement data at both ends is used as XY coordinate data, and the ground height data and hydraulic pressure data at that coordinate are Z coordinate data. And is expanded to the working memory 3C so as to display the three-dimensional hydraulic pressure gradient diagram as shown in FIG. At this time, each pipeline developed in the working memory 3C and the analysis result file 7C
A pipeline display table is created that is in a one-to-one correspondence with each pipeline inside. If the data of the working memory 3C is stored in the video memory 3D, the contents of the video memory 3D are color-displayed on the CRT according to the data of the preset color lookup table 3E, and the three-dimensional hydrodynamic gradient diagram shown in FIG. The ground height (above sea level) of each part from the water source to the end of the pipeline and the hydraulic pressure are displayed in different display colors.

The post-treatment device 3 is provided with a selecting means for selecting a specific pipe network forming the three-dimensional hydraulic pressure gradient diagram, and for the pipe line selected by the selecting means, the pipe line is selected. A conversion means is provided for converting the two-dimensional display of the plane arrangement length of the ground and the corresponding ground height and dynamic water pressure. More specifically, the selection means is the display control means 3
Of the pipelines that form part of B, the pipeline that is closest to the coordinates specified by the mouse on the screen on which the three-dimensional hydrodynamic gradient map is displayed is the selected pipeline among the pipelines that have been developed in the working memory 3C. The pipeline information is extracted as a pipeline, and pipeline information in the analysis result file 7C corresponding to the selected pipeline is specified by the pipeline display table. The conversion means uses the pipeline information in the identified analysis result file 7C to determine both ends of each pipeline unit (which is a pipeline between the pipelines and the connection points between the pipelines) constituting the pipeline network. The planar arrangement data of is as X coordinate data,
The ground height data and the hydraulic pressure data at the coordinates are extracted as Z coordinate data and expanded in the working memory 3C so as to display the two-dimensional dynamic hydraulic pressure gradient map as shown in FIG.

It has been explained that the above-mentioned selecting means extracts the conduit closest to the coordinates designated by the mouse as the selected conduit on the screen on which the three-dimensional hydraulic pressure gradient diagram is displayed. The closest pipeline is a pipeline corresponding to the gradient line which is the closest to any of the gradient lines of the hydraulic pressure gradient line or the gradient line indicating the ground height in the three-dimensional hydraulic pressure gradient map.

As a result of the analysis, when the difference between the ground height and the dynamic water pressure cannot be maintained at a constant value, the opening degree of the valve around it can be changed and set so that the entire pipe network has a uniform pressure distribution. Will be done.

Another embodiment will be described below. In the above embodiment, the three-dimensional hydrodynamic pressure gradient map was configured to display the ground height and the hydrodynamic pressure in different display colors.
The ground height and the hydraulic pressure may be displayed in different display colors for each pipeline. In the above embodiment, the case where the mesh flow rate method is used as the analysis method by the hydraulic analysis device 2 has been described.
The solution method is not limited to this, and can be appropriately selected.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a post-processing device.

[Figure 2] Overall configuration diagram of the water distribution simulation device

[Figure 3] Pipe network diagram of the waterworks subject to hydraulic analysis

[Fig. 4] Three-dimensional hydrodynamic pressure gradient map displayed on the CRT

FIG. 5: Two-dimensional hydrodynamic pressure gradient map displayed on the CRT

FIG. 6 is a flowchart.

FIG. 7: Flow chart

FIG. 8 is a flowchart

[Explanation of symbols]

 1 Pretreatment device 2 Hydraulic analysis treatment device 3 Posttreatment device 3B Display control means

Claims (3)

[Claims] 1. A pretreatment device (1) for generating, as an input model, the amount of water taken out from each pipe portion constituting a pipe network, and an input model generated by the pretreatment device (1). The hydraulic analysis processing device (2) for calculating and deriving the hydraulic pressure of the pipe network, and the post-processing device (3) for outputting the analysis result by the hydraulic analysis processing device (2) are provided. A water distribution simulation device comprising the processing device (3) provided with a display control means (3B) for displaying the ground height and dynamic water pressure of all or part of the pipe network on the same coordinate axis. A water distribution simulation device, wherein the means (3B) is configured to perform a three-dimensional display that represents the planar arrangement relation of all or part of the pipe network and the corresponding ground height and hydraulic pressure. 2. The post-processing device (3) displays the three-dimensional display with a planar arrangement length of pipelines constituting the pipeline network,
The water distribution simulation device according to claim 1, further comprising conversion means for converting the ground height and the dynamic water pressure corresponding thereto into a two-dimensional display. 3. The water distribution simulation device according to claim 2, wherein the post-processing device (3) is provided with a selection means for selecting a pipeline from the pipeline network which is converted into a two-dimensional display by the conversion means.