Module Introduction:

The control plan for production and sales gap in the water supply system mainly involves the online analysis system of production and sales gap for each link of "generated water, pipeline water, and meter service water", and the collaborative work of monitoring and measuring equipment such as assessment tables, ordinary meters, flow meters, pressure sensors, and temperature sensors. By collecting pressure, temperature, flow rate and other information from various monitoring points, and analyzing the data in the system, the leakage amount, pressure status, and production and sales gap rate are analyzed. Based on changes in various parameters, water leakage signs are quickly discovered, and the degree of error impact and error data on water meters under various installation environments, flow rate status, and water pressure changes are tested. A guide for water meter installation, selection, and use is compiled to scientifically guide water supply enterprises to correctly install and use water meters. To achieve precise measurement and reduce the production and sales gap, thereby continuously reducing the production and sales gap and increasing sales revenue.

（1） Real time simulation and analysis system for pipeline network

This system is mainly used for digitizing pipeline networks, establishing a pipeline network information database, and remotely monitoring the economic operation of the water supply pipeline network in real-time. Water supply dispatch personnel remotely monitor the topology of the entire pipeline network, visualizing relevant information such as pressure, flow rate, direction, and water quality in the distribution map of the pipeline network, supporting dynamic sound and light alarms. During dispatch, hydraulic calculation models are used to quickly simulate dispatch plans, combined with economic benefit models for auxiliary analysis, scientifically commanding the combined operation status of water pumps in each water plant to achieve energy conservation and consumption reduction, ensuring water supply pressure balance, and timely detecting and predicting pipe burst accidents.

Main features:

■Combined with GIS and SCADA systems, achieve dynamic topology of pipeline networks and precise positioning of large meters and other equipment.

■The water information collection interface is diversified, mainly obtaining historical and real-time data from existing databases.

■Hydraulic calculation assists decision-making and maximizes the economic benefits of scheduling.

■Partition monitoring real-time flow and pressure to achieve regional pipe burst warning.

■By combining pipeline pressure monitoring and auxiliary equipment, accurately locate the location of pipe bursts.

The analysis object of the pipeline leakage group mainly focuses on the physical leakage of the water supply system. In order to achieve physical leakage control of the water supply system, the system mainly adopts a comprehensive water leakage analysis system that combines multiple methods such as leakage group testing and analysis, nighttime minimum flow analysis, and pressure leakage index analysis.

■Can quickly eliminate major water leakage points

■Systematically test and analyze the condition of the pipeline network

■Easy to detect early signs of water leakage, reduce pipe burst accidents, and provide more stable services

■Effectively search for background leaks and other difficult to detect leaks

■Reduce the amount of equipment maintenance

■Extend asset lifespan

■Effectively reduce the production and sales gap

（3） Analysis of apparent water loss:

Visual water loss analysis is a quantitative analysis of the measurement errors that occur during the use of water meters, using water meter diameter calculation, water meter wear law calculation, and household water usage law calculation to guide users in choosing the appropriate water meter diameter, installation method, and water meter model. The following figure shows several water meters currently being used by a certain water company, and their impact on the production and sales gap after calculating the diameter.

Functional features:

■Provide guidance for the scientific installation of water meters and reduce the production and sales gap caused by improper installation of water meters.

■Evaluating the accuracy of user measurements is beneficial for selecting appropriate leakage control plans, ensuring regular meter replacement cycles, and determining relevant service regulations when necessary.

（4） More management modules: pump station energy consumption management, pipe burst warning management, water quantity prediction, water quality management.