In the past, there was a problem with the water quality in the residents' homes. Property companies and water supply companies often talked to each other, arguing whether the water tanks in the community were cleaned or not. In the future, the current sensor, which is only used to monitor the water pressure and water quality of the pipe network, will be installed near the roof tank of the residential area closest to the residential home. At that time, the water supply department can monitor the size and quality of the tap water of the residents in real time. Once a problem is found, it can be disposed of as soon as possible, and the quantity and quality of the household water supply will be fundamentally guaranteed. In addition, the city's water supply department is building an intelligent water supply scheduling system, which is expected to be initially completed in about three years. The amount and quality of water from the tap water factory to the residential residential water meter will be monitored throughout the process. The water tank is not washed, always pulling the skin In recent years, water quality complaints caused by rooftop water tanks have continued. Residents of a community complained that the roof water tank of their community was cleaned within two days, and the tap water had an odor. After verification, the problem was the roof water tank of the community. However, the property company that manages the community insisted that they had cleaned the water tank as required, and denied that the water quality was abnormal because the water tank was not cleaned properly. The matter could not be resolved afterwards. In fact, such disputes are not unique. Relevant departments have reported that residents often come to them to complain that the communities they live in have not cleaned the water tanks or that the water tanks have not been cleaned properly, but the property company has denied that the two sides often argue over whether to clean the water tanks. It is reported that the relevant departments of this city send people to the community to inspect the rooftop water tanks every year. If they are not qualified, they are ordered to rectify them. However, there are 120,000 rooftop water tanks in the central city of Shanghai. Residents of the old residential districts responded strongly. Install the sensor and deal with the problem quickly To this end, the relevant departments have required water supply enterprises to gradually manage the water to the meter. By 2020, the water supply enterprises will be fully responsible for the amount and quality of water from the tap water factory to the residential residential water meter according to their jurisdiction. To this end, the water supply department decided to install the sensors currently installed in the water supply network beside the rooftop water tanks of the residents in the community. The water supply department has made it clear that while renovating the secondary water supply facilities of old houses, sensors are gradually installed in the roof tanks. The installed sensors include water pressure sensors (measure pressure) and water quality sensors (which can measure turbidity, residual chlorine, Water temperature and PH value). It is reported that the water supply department takes into account the high cost of installing sensors on all 120,000 rooftop water tanks. The water supply department will plan for each community to determine the location and number of sensors installed in the community. If the water quality of the interface connecting the pipe network to the community is relatively stable, the sensor may be installed at the residential roof water tank at the end of the community or the roof water tank that is relatively prone to problems. In the future, each water supply enterprise will be divided into districts according to its jurisdiction. Each district will separately monitor the water quantity and quality of the residential areas within their water supply scope. If problems are found, they will report to the police and take measures in a timely manner. In the past, when water quality problems occurred in households, property companies and water supply companies often talked to each other. After the secondary water supply facilities were renovated and sensors were installed on the roof tanks, the water supply companies managed the water to the households, and the monitoring measures were in place. There will be a fundamental guarantee. Relevant persons in the water supply department particularly emphasized. Pilots are intelligent and monitored throughout At present, the city's water supply department is building an intelligent water supply scheduling system, including 6 aspects, namely online monitoring intelligent perception, early warning linkage intelligent diagnosis, emergency emergency intelligent disposal, intelligent decision-making control command, economic optimization intelligent scheduling and comprehensive analysis intelligence Evaluation. At present, the system is only developed and used in some European and American countries such as the United Kingdom. Since last year, the water supply department has piloted intelligent early warning diagnosis in the water supply scope of Shinan Company. That is to say, the area can now diagnose problems in the water supply network through computers in time, rather than in the past. Make a query one by one. West of Huangpu River in Shanghai and south of Suzhou River, including Huangpu District, Jing'an District, Changning District, Xuhui District, Putuo District (small parts), Minhang District (most parts), Songjiang District and Qingpu District (partial regions) All are within the scope of intelligent early warning diagnosis. Turbidity and residual chlorine can be monitored, and an alarm will be issued once abnormal How do sensors monitor water quality? Yesterday, the reporter saw at the monitoring points of World Expo Pavilion Road and Changqing North Road that 5 sensors measuring pressure, turbidity, residual chlorine, water temperature and PH value were placed in a rectangular box at the same time. An air conditioner is used to control the temperature of the cabinet to be between 22 and 25 degrees Celsius. The reporter saw that a connecting pipe introduced the tap water from the pipe network of the monitoring point into these five sensors. The instruments and equipment in the sensor tested the water pressure and water quality data of the pipe network of the monitoring section at that point 24 hours a day, and passed the installation. The communication equipment in the box transmits the data to the control center and the government supervision department. In the Pudong Veolia Control Center, 5 display terminals and a large display hanging on the wall simultaneously display the data sent back from all monitoring points. When the water quality is normal, the display is blue. Once the screen shows red, the system will issue an abnormal water quality. alarm. This control center monitors the water consumption of about 4 million people. Sensors have been installed in more than 90 monitoring points in these areas. Among them, there are more than 30 monitoring points with water pressure sensors and water quality sensors installed at the same time, and more than 50 monitoring points only have water pressure. sensor. Relevant persons from the Shanghai Water Supply Dispatching and Monitoring Center explained that the installation of sensors depends on the situation. Generally, important areas, the intersection of the water supply areas between the two water plants, the pump station and the pipe network, and sensitive areas should be installed. Dozens of sensors are currently installed every year. The higher the sensor density, the clearer and more in place the monitoring.
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