KR20190100489A - Management methode for water suplly pipeline network and water supply pipeline managing system - Google Patents

Abstract

According to an embodiment of the present invention, a water supply pipeline network management method comprises the following steps: setting a sub basin in a water supply pipeline network map which is divided in a unit block and includes water pipelines and valves in the unit block wherein data is input; displaying a water supply moving direction in the sub basin on the water supply pipeline network map; analyzing the water supply moving direction and displaying the valves capable of interrupting the movement of water supply in the sub basin; selecting a valve to be interrupted among the displayed valves; and notifying operation information to a customer whose water supply will be cut off by the valve which will be interrupted.

Description

MANAGEMENT METHODE FOR WATER SUPLLY PIPELINE NETWORK AND WATER SUPPLY PIPELINE MANAGING SYSTEM}

The present invention relates to a water supply pipe network management method and a water supply management system using the same.

The water supply network is an essential urban infrastructure, and accordingly, various technologies for efficient management and operation of the water supply network have been developed in a long history. Recently, many technologies related to water supply network analysis using GIS (Geographic Information System) technology and intelligent water supply network management have been proposed.

Currently, the management of water supply network is intensively invested in expansion of water supply network, replacement of old pipes, rehabilitation or meter replacement for water supply of customers.However, the leak rate is increased due to the aging of water and drain pipes and poor facility maintenance. Yields are stagnant.

In recent years, the database has been steadily established due to the exploration and survey of the water supply network. However, due to the lack of the water supply network method and the operation management system using the same, unnecessary singular measures are being implemented. Diagnosis is not made. Therefore, there is a need for a water supply network management method and a water supply operation management system using the same to reduce unnecessary singular measures of consumers and to estimate water demand more accurately through pipe network analysis.

The present invention has been made on the basis of the technical background as described above, and the present invention relates to a water supply network management method and a water supply operation management system using the same to reduce unnecessary singular measures of consumers and to estimate more accurate water demand through pipe network analysis. .

In accordance with an embodiment of the present invention, a method for managing a water supply network includes: setting a subwatershed in a waterworks pipe network in which water is divided into unit blocks and data including water pipes and valves in the unit block are input. Displaying a moving direction in the waterworks pipe network diagram, analyzing the constant moving direction, displaying a valve capable of stopping constant movement in the subwatershed, selecting a valve to be shut off among the displayed valves, and It may include a notification step of notifying the customer information to the customer to be cut off by the valve to be blocked.

The valve selection step may further include selecting a waterworks pipe under construction in the subwatershed and analyzing a valve to be blocked by analyzing the constant movement of the selected waterworks pipe under construction.

By inputting the construction period of the water supply pipe for the construction, the operation information can be notified including the construction period.

Extracting the daily water demand of the subwatershed on the corresponding day, a database of watershed usage by the subwatershed using water tariff data, and calculating a weight of the subwatershed based on the daily water demand and the watershed usage by the subwatershed; Estimating the use quantity using the sub-branch number, the extracted daily demand and the weight of the subwatershed, and comparing the estimated quantity with the data measured from the customer. It may include a step.

The comparing may further include analyzing leakage of the water supply network and examining whether there is an abnormality.

The comparing may include estimating the aging degree of the water supply network.

The method may include extracting environmental information through the input data and the data measured from the customer.

Before setting the subwatershed, setting an initial model for the water supply network, comparing the water pressure calculated through the initial model and the water pressure measured in the subwatershed or the unit block, the effect of comparing the water pressure Analyzing the factors, recalculating the daily average amount of water in consideration of the flow rate, recalculating the daily average amount of water and calculating anhydrous or invalid amount, and operating the facilities of the water supply network according to the predicting step It may include the step of evaluating, evaluating the aging degree of the water pipe and calculating the applied model by correcting the initial model.

Water supply management system according to an embodiment of the present invention, the input unit for inputting the water supply data and the location of the water supply pipe to the map of the water supply area and the plurality of unit blocks for dividing the map, it is possible to select a subwatershed within the unit block A display unit for analyzing and displaying the water pipe and the valve connected to the water pipe when the subwatershed is selected by the selection unit, and a customer whose water is singular according to the valve when the valve is displayed. And it may include a transmission unit for notifying the customer the operation information.

The water supply pipe network management method and the water supply management system according to an embodiment of the present invention may reduce unnecessary singular measures of customers and more accurately estimate water demand through pipe network analysis.

1 is a flow chart of a water supply pipe network management method according to an embodiment of the present invention.
2 is a flow chart of a water supply network management method for extracting leakage, aging and environmental information of the water supply network according to an embodiment of the present invention.
3 is a block diagram of a water supply management system according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a method of setting a waterworks pipe network model applied to FIG. 1.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to the illustrated.

In addition, throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding the other components unless otherwise stated.

1 is a flow chart of a water supply pipe network management method according to an embodiment of the present invention.

Referring to FIG. 1, the method may include a step S10 of setting a subwatershed in a waterworks pipe network, which is divided into a unit block and data including a water pipe and a valve in the unit block is input.

The unit block may be divided into large blocks, heavy blocks or small blocks. For example, a large block or a heavy block may be set around a water purification plant, and a small block may be set around a drainage basin. Taking Seoul as an example, the Amsa water purification plant or the Gangbuk water purification plant can be a large block water purification plant. A large block water purification plant supplies water to a medium block water purification plant with a water pipe. A heavy block water purification plant is a drain main pipe with a pipe diameter of 400 mm or more and is connected to a plurality of small blocks. Small blocks are connected to drainage pipes and numerous consumer homes. Since the altitude of the terrain is different, the location of each unit block is altitude difference. Accordingly, the height of the installation of the water supply pipe is different, and the flow rate is also different.

Data input to the unit block may be installed not only water pipes, but also pumps, flow meters and valves for pressurization.

The water supply network can be displayed on the map. For example, the water supply network may be provided from a Geographic Information System (GIS) server. GIS is a system that stores all types of geospatially referable information. The water supply network data can be displayed on 3D, 2D map or satellite map provided from GIS.

The watershed of the water supply network for maintenance may be a pre-determined unit block on the map. As another example, it may be an arbitrarily selected zone in the unit block. For example, large-scale development zones, such as land development, can constitute a unit block. As another example, an old water pipe in an existing unit block may be selected as an arbitrary area for construction in case of construction for maintenance or replacement.

The water supply pipe may include a very small pipe having a pipe diameter of 100 mm or less from a drain main pipe having a diameter of 400 mm or more. These water pipes are selected in consideration of the distance to be transported, the number of customers and the altitude of the terrain, and the water pipes are formed in a lattice or complex with each other to transfer the water to the customers.

During the maintenance and management of water pipes, the singular measure of customer is inevitable. Consumers in subwatersheds set up for maintenance can be singular. Accordingly, in order to prevent unnecessary watering measures by a large number of consumers, subwatershed setting and subsequent watering planning are very important.

To this end, it may include the step (S20) to display the constant movement direction in the watershed pipe network diagram. For example, in a subwatershed, the valve to be controlled according to the direction of water movement may be different. Because water pipes are complex and diverge in many directions, it is important to select and control which valves are to be used for the minimum number of stages in the subwatershed. For example, the entire unit block can be cut off by controlling the valve of the drain main pipe, but in order to reduce unnecessary cutoff and convenience of customers, the valve should be selected so as to select the minimum amount of water in the subwatershed by analyzing the direction of water movement. .

Accordingly, by analyzing the constant direction of movement, it may include a step (S30) for displaying a valve that can stop the constant movement in the subwatershed and a valve selection step (S40) for selecting a valve to be blocked among the displayed valve. .

The visually displayed valve can be more easily selected by the administrator. In other words, the manager can once again confirm that it is appropriate to shut off the visually displayed valve and to select the valve to be shut off. Inadvertent singular measures can cause physical and mental damage to the consumer, so the administrator can select which valve to shut off.

Next, it may include a notification step (S60) for notifying the operation information to the customer to be cut off by the valve to be blocked. By notifying the customer in advance of the operation information before construction, the customer can take precautions against inconveniences or damages caused by the singular measures. In addition, the customer can postpone the construction schedule by requesting the manager if an unexpected event occurs before the singular action. As another example, the manager may consider the possibility of blocking the unmarked valve to supply the water to the customer in the event of an unexpected request or event.

As such, the water supply pipe network management method according to an embodiment of the present invention, while establishing the construction plan in advance in the water supply pipe network to establish a watershed, and to set the minimum number of customers to be single measures to minimize the inconvenience and physical and mental damage of the customer In particular, there is an advantage that it is possible to flexibly respond to unexpected events of the consumer by notifying the consumer before the maintenance information before maintenance.

The valve selection step may include a step (S42) of selecting a target water pipe under construction in the subwatershed and a step (S44) of analyzing a valve to be blocked by analyzing the constant movement of the selected water pipe under construction. For example, subwatersheds can not only be set up locally, but subwatersheds can be selected when selecting water pipes for maintenance. In this case, the valve to be blocked may be displayed by analyzing the constant movement of the selected water pipe. In general, maintenance of the water pipes is carried out along the connected water pipes, so there is a possibility that unnecessary singular measures will be made when the valve is selected by means of zones. Accordingly, it is possible to select a valve for the minimum number of steps by directly selecting a water pipe requiring maintenance. However, since the distribution of the customer to be singularly acted upon by the valve selection does not necessarily coincide with the connection direction of the water pipe, it may be represented as a subwatershed including the distribution position of the customer.

The valve to be shut off is not located within the established subwatershed, but may be located outside the subwatershed. This is because the connection of the water pipe and the distribution of the customer do not match. Accordingly, the customer singular by blocking the valve may include an area outside the subwatershed. Therefore, operational information on single measures should be informed to the customer based on the valve to be shut off. For example, the operational information for a single measure may be subwatershed, construction period, and construction purpose. In other words, by inputting the construction period of the water supply pipe to be constructed, the operation information can be notified including the construction period. In addition, when the intermittent singular is made, information on the singular time may be notified.

2 is a flow chart of a water supply network management method for extracting leakage, aging and environmental information of the water supply network according to an embodiment of the present invention.

Referring to FIG. 2, the step of calculating the weight of the subwatershed based on the extraction of the daily water demand of the subwatershed, the database of the watershed usage by the subwatershed using water tariff data, and the daily water demand and the watershed usage by the watershed It may include.

For example, the constant usage may vary depending on the customer. For example, a commercial facility that uses a lot of water may have a much greater use of water than a regular household. Therefore, the weight of the subwatershed is calculated and reflected on the basis of the usage amount of customers in the subwatershed set.

It may include the step (S52) to database the number of each subwatershed. That is, the information about the land is constructed so that the unit block displayed on the map can correspond to the site. It may include a step (S53) for estimating the amount of use by using the number of each subwatershed, the number of days of the corresponding day extracted and the weight of the calculated subwatershed. That is, the quantity used can be estimated through the pipe network analysis.

For example, a water supply pipe is a water intake pipe that collects raw water and sends it to a water intake, and a water supply pipe from a water purification plant to a drainage basin is a water supply pipe, a water supply pipe that is installed for drainage purposes from a drainage basin, and a water supply pipe branched from a drainage pipe to a water meter. have. These water pipes can be estimated through the network analysis. Thus, the water supply network can be designed based on the estimated and calculated flow rates. Since the constant flow in the closed pipe is very variable, the weight of the subwatershed is reflected using the daily demand of the customer and the water tariff data to estimate the quantity of water used in the required watershed. Thereafter, the method may further include comparing the estimated use quantity with the data measured from the customer (S54). That is, the management direction of the water supply network can be established by comparing the measured quantity of water used according to the theory and the actual measured data.

Next, through the comparing step, it may include the step (S55) of analyzing the leakage of the water supply network and examine whether or not abnormality. In addition, through the comparing step, it may include the step of estimating the aging degree of the water supply network (S56).

For example, if you compare the estimated and calculated usage volume with the actual measured data reflecting the weight, and there is a big error between the estimated usage quantity and the actual measured data, you may suspect a leak in the water supply network. In addition, the aging can be estimated. For example, it can be judged that the extent of the error gradually increases as the year goes on, which proves that aging is getting bigger. Thus, maintenance management of the subwatershed can be planned.

In addition, the method may include extracting environmental information through the input data and the measured data from the customer (S57). For example, if a water supply from a water treatment plant contained hazardous substances in the acceptable value, but the data measured at the consumer contained hazardous substances exceeding the allowable value, in addition to damage to the water supply pipe in the subwatershed, the environmental information would be inferred. can do. Therefore, by comparing the input data and the data measured in the customer can be inferred to grasp the environmental information of the subwatershed.

3 is a block diagram of a water supply management system according to an embodiment of the present invention.

Referring to FIG. 3, the water supply management system 100 may include an input unit 10, a selection unit 20, a display unit 30, an analysis unit 40, and a transmission unit.

The water supply management system 100 may be a program running on a computer. For example, the input unit 10 may input the water supply data and the location of the water supply pipe to the map of the water supply area transmitted through the map information and the plurality of unit blocks that divide the map. Through the input unit 10, water supply data such as the number of customers, water rate data, and the number of harmful substances in the constant water can be input. Such data can be inferred from leakage analysis, aging evaluation, environmental information, etc. in the analysis unit 50 compared with the data measured at the end-use customer.

The input unit 10 may enter a year and a construction record of the water supply pipe. That is, as well as data on new expansion, construction records due to maintenance can be input and managed.

You can select subwatersheds within a unit block. Singular measures can be taken at selected subwatersheds, and water pipe operating information, such as maintenance, can be transmitted to customers within the selected subwatershed.

The selection unit 20 may not only set a subwatershed as a range, but also by selecting a water supply pipe that is a maintenance target, a subwatershed range including a target water pipe may be set. Setting the extent of subwatersheds can vary each time because the distribution direction of water pipes does not match the distribution of customers. Therefore, a more optimal subwatershed can be selected.

When the subwatershed is selected by the selector 20, the display unit 30 may display the valve by analyzing the valve connected to the water supply pipe. That is, when a subwatershed is set, it is possible to indicate a valve to be controlled for a singular action inside the subwatershed. The displayed valves are visually notified to the manager, who can review the displayed valves once more to determine if they are shut off.

Through the transmission unit 40, the customer can be informed of the operation information. It can minimize the inconvenience and damages of customers by informing customers about the construction period, the number of hours and the purpose of construction before construction for maintenance. In addition, by providing information to the customer in advance, if the singular action is not possible due to the unexpected accident of the customer, change the construction plan, or change the subwatershed to avoid the singular measure of the customer by accident. Can stand.

FIG. 4 is a flowchart illustrating a method of setting a waterworks pipe network model applied to FIG. 1.

Referring to FIG. 4, in the method of setting a water supply network model, a theoretical model may be selected, and compared with the data measured in the field, the amount of leakage may be predicted accordingly, and an application model used in the water supply network may be set.

First, an initial model for a water supply pipe network may be constructed (S101), and the calculated value according to the constructed initial model may be compared with water pressure (S102). The initial model is established to manage the water supply network more systematically and the water supply network is managed based on theoretical calculations. For example, the initial model uses predicted water pressure data, taking into account the yearly drainage of the area to be analyzed, the usage of each individual customer over the year, the inflow / flow data of subwatersheds, and the numerical topography and the elevation of the terrain. Can be built using

In addition, the condition value and the weight may be set by calculating the type of pipe, the diameter of the water pipe and whether the inner or outer surface of the water pipe is covered, and the type of soil. In addition, it is possible to apply the weight differentially in consideration of the setting value of the equipment installed for pressurization and decompression. These weights can be set according to the basic knowledge of the network analysis and the components and quantity of facilities in the area.

According to the established initial model, the theoretically calculated water pressure is compared with the water pressure in the representative area. The representative area may be a unit block or a subwatershed set up within a unit block.

Thereafter, the influence factor of the hydraulic pressure fluctuation is analyzed (S103). The theoretical calculated value and the actual pressure of the measured area can be compared to analyze the influence factor. For example, the data entered in the initial model will be reviewed, and the operational status of the facility, the presence of losses in the pipeline, and the factors will be analyzed. In this way, through the analysis of the influence factor, it is possible to set up an application model that is more realistic by correcting the initially constructed model.

Next, the daily average amount of use is redefined (S104). Supply is equal to the sum of the imposed, anhydrous and invalid quantities. Therefore, in consideration of the flow rate, the anhydrous amount and the invalid amount can be calculated and grasped (S105). The high amount of anhydrous or invalid water can be regarded as leaking in the water supply pipe, so that information on the water supply network can be easily obtained.

After that, review the operation of the water supply network facilities (S106). For example, the facility may be a facility for pressurization or depressurization and may be a valve in a water pipe. In consideration of the recalculated daily average use quantity, it is possible to predict or grasp the anhydrous quantity or the invalid quantity, and to examine and carry out whether or not to pressurize or depressurize the valve.

In addition, it may include the step (S107) of evaluating the water supply network. It is possible to estimate the deterioration of the water supply network by predicting anhydrous or invalid quantity. For example, the deterioration degree can be managed by evaluating numerically according to the interval of the increase if the anhydrous amount or the invalid amount is increased compared to the reference date.

Based on the initial model, it is possible to analyze the influence factors, recalculate the average daily use quantity, review the operation of the facilities, evaluate the buried pipelines, and calculate the applied model correcting the initial model (S108). The water supply network cannot be applied to the uniform model because the topography is different depending on the region where the water is managed. Therefore, the process from initial model selection to selection of the applied model is most important. Through this process, more accurate and systematic water supply network management can be possible.

Although the present invention has been described through the preferred embodiments as described above, the present invention is not limited thereto and various modifications and variations are possible without departing from the spirit and scope of the claims set out below. Those in the technical field to which they belong will easily understand.

100: water supply management system
10: input unit 20: selection unit
30: display unit 40: transmission unit

Claims (9)

Setting up a subwatershed in a water supply pipe network in which data including a water pipe and a valve in the unit block are inputted;
Displaying the direction of constant movement in the subwatershed on the waterworks network;
Analyzing the constant direction of movement to indicate a valve capable of stopping constant movement in the subwatershed;
A valve selecting step of selecting a valve to be blocked among the displayed valves; And
Water supply pipe network management method comprising the step of notifying operation information to the customer to be cut off by the valve to be blocked. The method of claim 1,
The valve selection step,
Selecting a target water pipe in the subwatershed construction project; And
The water supply pipe network management method further comprises the step of displaying the valve to be blocked by analyzing the constant movement of the selected waterworks pipe. The method of claim 2,
The notification step,
The water supply pipe network management method of inputting the construction period of the water supply pipe for the construction, and notifying the operation information including the construction period. The method of claim 1,
Before the notification step,
Calculating a weight of the subwatershed based on the extraction of the daily water demand of the subwatershed, a database of watershed usage by the subwatershed using water tariff data, and the daily water demand and the watershed usage by the subwatershed; And
Database the number of each subwatershed;
Estimating the quantity of use using the number of each subwatershed, the extracted daily demand for the corresponding day, and the weighted weight of the subwatershed; And
The water supply pipe network management method further comprising the step of comparing the data measured from the consumer and the estimated amount of use. The method of claim 4, wherein
Through the comparing, the water supply pipe network management method further comprises the step of analyzing the leakage of the water supply network and examining whether there is an abnormality. The method of claim 5,
Estimating the aging degree of the water supply network through the comparing step. The method of claim 1,
The water supply pipe network management method comprising the step of extracting the environmental information through the input data and the data measured from the customer. The method of claim 1,
Before setting up the subwatershed,
Setting an initial model for the water supply network;
Comparing the water pressure calculated through the initial model with the water pressure measured in the subwatershed or the unit block;
Analyzing an influence factor according to the pressure comparison;
Recalculating the daily average amount of water in consideration of flow rate;
A prediction step of recalculating the daily average use quantity to calculate anhydrous quantity or invalid quantity;
Reviewing facility operations of the waterworks network according to the prediction step;
Evaluating the aging degree of the water pipe; And
The water supply pipe network management method comprising the step of calculating the application model by correcting the initial model. An input unit for inputting water supply data and locations of water supply pipes into a map of a water supply area and a plurality of unit blocks for dividing the map;
A selection unit for selecting a subwatershed in the unit block;
A display unit for analyzing and displaying the water pipe and the valve connected to the water pipe when the subwatershed is selected by the selection unit; And
When selecting the valve displayed, the water supply management system including a transmission unit for notifying the customer of the operation information is displayed by the customer singular constant according to the valve.

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