1in April, 908, the Qing government established "Shi Jing Water Supply Co., Ltd." and began to build Dongzhimen Water Plant, the first water plant in Beijing. The water plant project was completed in June of 19 10, and officially put into operation in March of the same year, with a daily water supply capacity of18,700 cubic meters and 6,544 water supply pipelines. In the following 40 years, although it experienced the late Qing Dynasty, Beiyang, Japanese puppet rule, the national government and other periods, the water supply industry in Beijing has been developing slowly. On the eve of the liberation of Peiping in 1949, the only water supply facilities in Beijing were Dongzhimen with 1 water plant, 29 wells and 364 kilometers of water supply pipeline, with a daily water supply capacity of 50,000 cubic meters and a water supply range of only 600,000 people. The urban water supply penetration rate is 29.5%. Most residents use shallow groundwater by drilling wells or using pressurized water machines, while a few extremely poor families use surface water such as ponds and rivers near their homes.
The construction of the first waterworks took a lot of effort.
The establishment of tap water industry is an unprecedented new thing. At that time, the Qing government was ignorant and backward, and everything needed to be imported. Reggie, which is in charge of equipment supply, not only fails to supply on time, but also often provides a large number of unqualified equipment made in Germany. 1909165438+1October 3, when Dongzhimen Water Plant was commissioning to deliver water to the water tower, the cast iron water pipe next to the water tower suddenly burst more than a foot, which turned out to be cracked fragments. There are countless phenomena such as replacing the rubber pad of the faucet with a paper pad and providing rusty water pipes. However, at that time, China could not produce water, and the supplier denied it unreasonably. There was no way but to buy German-made water supply equipment, which not only brought difficulties to the construction, but also brought a lot of troubles to the future operation.
Accidents often occur when laying water supply pipelines. Trenches must be dug for the installation of water pipes. Because of the uncivilized atmosphere and the prevalence of feudal superstition at that time, many people thought that ditching would destroy the geomantic omen of local host families and bring them ominous disasters, so they stopped it, especially for some powerful families. For example, when the water supply pipeline was installed on the north back wall of Regent's Palace in Qing Dynasty (now the former residence of Soong Ching Ling), the family in the palace came out to stop digging ditches. This was a hot potato at that time, so the workers had to stop work and report to their superiors. In a short time, the steward rushed to the construction site by carriage, holding the imperial edict in his hand and shouting the imperial edict, only to see the family members who blocked the construction kneeling on the ground. At this time, the steward read it again with the imperial edict in his hand, which generally means that the project is constructed in accordance with the imperial edict and is beneficial to people's livelihood, and all officials in the place where it passes shall not stop it. After that, the Wang Fu family stopped digging ditches and the project continued. There are many such things.
It was difficult to sell water at first.
When the tap water company officially opened, it was suspected and opposed by some people, and even slandered that tap water was "foreign pancreatic juice" and could not be used, which made it very difficult to sell tap water in the early stage. In order to dispel many people's concerns, Shi Jing Water Supply Company took great pains to advertise in vernacular newspapers in classical Chinese and vernacular Chinese respectively, explaining in detail that the newspaper was invited to guide public opinion, enlighten the society and let everyone know the benefits of tap water. At the same time, it also enlightened the public and refuted those rumors in a scientific way. The advertisement said, "... but there is a situation that needs to be declared to everyone, that is, the water released from this faucet looks a little white at first glance." Some people don't know, thinking that the pipeline can't be cleaned, saying that it is the same as foreign pancreatic juice, but they don't know this truth. If you say it, you will understand, and everyone will not misunderstand. "
In order to attract more customers, the water company said in the advertisement, "... in the future, you can buy two tickets with a copper coin and take one ticket to carry water, which is really cheap." From February 10 to May 10 and March, our company even gave preferential treatment on the price, and the water price was halved. A copper coin can buy four tickets and carry four buckets of water ... "Despite the vigorous publicity, business is still not good. In the case of 420 market faucets selling water and very little water for special users, the daily average water supply of 19 10 is only 16 13 cubic meters.
In the past, drinking tap water was the patent of the rich. At the beginning of the 20th century, in addition to the water used by the imperial palace, the Royal Teahouse set up a waterwheel to take spring water from Yuquan Mountain, and the general residents mainly lived by taking water from simple shallow wells. Up to now, there are still many streets and lanes in the urban area named after the owner, water quality, location or number of wells. Such as Wangfujing, Yaojiajing, Datianjing, Xiao Tianjing, Kujing, Er Yanjing, San Yanjing, Qi Jing Hutong and so on. According to the record of 1945, there are still 4,500 shallow wells in Beijing.
When Dongzhimen Waterworks was built, the main consideration at that time was the royal palace and the rich and powerful people in the urban area. But at first, they didn't drink the tap water in the palace, but the water from Yuquan Mountain. As for the tap water pipe, it was mainly used for fire fighting, but at that time, only a section of DN200mm pipe was introduced from Donghuamen, and it stopped when it was installed in Wenchang Pavilion. The total length is only 300 meters, and several fire hydrants are installed on it, but it is purely symbolic. Not only the imperial palace, but also many dignitaries did not drink tap water in the early days, for fear that foreign devils would poison the water. This phenomenon continued until the overthrow of the Manchu government and the establishment of the Republic of China. Some dignitaries dare to drink tap water because of the gradual civilization of the atmosphere. Ordinary people can't afford tap water because they are poor. Although the water plant is close at hand, they can only "look at the plum to quench their thirst". At that time, an old man said with emotion: I have seen this water tower for more than 40 years, and I didn't eat its water until today (after liberation).
It is difficult to build a new water plant.
1942, in order to expand water sources, increase water supply capacity and reduce the load of Dongzhimen Waterworks, the former Japanese puppet Beijing Special Administrative Office planned to build Andingmen Waterworks on the south side of Huangsi Barracks outside Andingmen. Due to economic difficulties, the construction of waterworks is progressing slowly. By the end of 1947, only 9 water source wells, water distribution room 1, power distribution room 1, water distribution pipe 1, suction well 1, and volume 1000 m3 have been completed. Due to the poor quality of the project, there were many problems in the trial operation at the end of 1948, and the water supply conditions were not available, so the construction was still needed, and the construction cost needed 1000 billion yuan at that time. Because the Kuomintang government was in danger, the final construction went up in smoke.
After the peaceful liberation of Beiping, the first important task of the water supply company was to quickly resume the construction of the second water plant (Andingmen Water Plant) to solve the water problem of 2 million people in Beijing. At that time, the water supply company appointed Tao Zhuo, Xu Cimin and Hu Xifeng as commanders, and formed a construction team of more than 30 people. All the newly built water supply facilities and equipment were overhauled, the power lines of nine water source wells hit by shells were repaired, the pumps of water delivery and distribution machines were overhauled, and the water delivery and distribution pipelines were washed. It took only three months to complete all the construction projects. 65438+1 May 19491officially put into operation water supply, which contributed a great gift to the first May Day after the founding of New China.
The first water tower made a "meritorious military service"
The first tap water tower in Beijing is the water tower of Dongzhimen Water Plant, which was designed by German designers and built in 19 10. This tower is 54 meters high and has a volume of 750 cubic meters. The water tower belongs to the steel structure water tower. There is a very strong platform embedded with concrete and covered with pink granite under the tower body, and the edge is ground into round legs. The tower is divided into six layers, each layer is hexagonal, and six sides are inlaid with 12 decorative dragons (two on each side, meaning two dragons playing with beads); There are folding seats on the veranda platform of each floor, so you can take a nap when climbing the tower, not only enjoying the cool, but also enjoying the scenery. Each floor of the water tower is decorated with 12 copper bells, and two bells are hung at each tower corner, with small bells on the first to fifth floors and large bells on the sixth floor. Every time the breeze blows, the hanging bells jingle, which is not only very beautiful, but also can alarm birds and make them afraid to nest here, avoiding the disadvantages of bird droppings polluting the tower, which is very thoughtful; The water storage part has a diameter of about 14m and a height of about 5m. The bottom of the water storage part is supported by eight columns. The weight of the tower body plus water is more than 1000 tons, but there are only 64 Φ1.5 "bolts at the support, so the whole tower body is fixed on the steel plate buried underground, and it has stood for more than 50 years. Its design and construction technology are amazing!
The water tower ceased to be used in 1942, but on the eve of the liberation of Peiping in 1948, the Beiping Aviation Command of the People's Liberation Army was stationed here for half a year, and the number of bombs dropped by the Kuomintang was calculated by observing the height of the water tower, which made great contributions to the peaceful liberation of Peiping. In 2003, an old comrade who had fought in the Beiping Aviation Command made a special trip to the former site of the water tower, trying to recall the battle scene of that year. Unfortunately, the water tower was demolished as early as 1957. Fortunately, in September 2003, the German Embassy gave the design drawings of the water tower to the Water Supply Group, which finally made up for the shortage of the water tower being demolished.
After liberation, the relevant departments have organized and discussed the demolition of water towers many times. There are three main opinions: first, if it is preserved as a cultural relic, because its steel structure building needs maintenance, it will be repaired every 5-8 years, and it will cost 30 thousand yuan to paint once. Is it worth a water tower that has stopped for people to watch or remind people of the past? Second, whether the water tower itself can reach the level of cultural relics; Third, the water tower should be preserved as a cultural relic. Finally, due to the high maintenance cost and the shortage of steel supply in the country, the iron tower was demolished and 229 tons of steel were removed as the steel index to support the national economic construction.
Fifty years of rapid development (1949- 1999)
abstract
The tap water industry in Beijing has been wandering for forty years and has been waiting for forty years. With the trauma of the war, Beijing's tap water industry ushered in the dawn of the development of new China. 1949 On May 1st, Mayor Ye Jianying personally attended the May 1st celebration meeting of North China Electric Power and Beijing Water Supply Company.
In the 50 years since the founding of New China, especially in the 20 years since the reform and opening up, Beijing's water supply industry has advanced at an unprecedented speed, and its water supply capacity has increased 60 times in the past 50 years. The third, fourth, fifth, sixth, seventh and eighth water plants, Changxindian Water Plant, Chengzi Water Plant, Nankou Water Plant, Tiancunshan Water Purification Plant and Fengtai Water Plant have been built one after another, especially the completion and commissioning of the ninth water plant, which indicates that the water supply in the capital has reached the international modernization level in technology, management and water quality testing. By1August 1999, there were 14 water plants in Beijing, with a daily water supply capacity of 3 million cubic meters and an annual water supply of more than 700 million cubic meters. The total length of water supply pipeline reaches 6042 kilometers, the water supply service area reaches 540 square kilometers, the service population exceeds 8 million, and the urban water market penetration rate reaches 100%.
Public water station enters the hospital
Old Beijing may still remember that in the early days of liberation, wheelbarrows creaked from time to time in Beijing's hutongs. The pusher carries a rope trip on his shoulder, and there are two water tanks on the left and right sides of the wheel, with two rafts on them. This is the scene of "waterwheel" delivering water. The water in the water truck is pumped up from the "well nest", which is a simple shallow earth well, and the water is taken by a pressurized water machine.
1949, Longxugou area in the south of Beijing, as the first experimental area to install public water stations, kicked off the popularization of water supply in the whole city. By 1967, 2677 large and small water stations have been installed in Beijing, and the urban water penetration rate has reached 99.96%. After the water station is built, people still carry water with their shoulders, and some even go to the street station 100 meters away to carry water, which is more difficult in winter.
1973 in order to improve the quality of life of residents, water supply companies have successively reformed public water stations and connected them to various households in stages. By 1984, all the public water stations within the Third Ring Road have entered the hospital, and ordinary people in Beijing can drink sweet tap water without leaving the hospital. Nowadays, tap water pipes have been connected to thousands of households, and residents can flow tap water without leaving home. Of course, it is hard for young people to imagine the difficult scene when using tap water.
There was a "water shortage" in the 1980s.
In the 1970s and 1980s, water resources in Beijing were facing an extremely embarrassing situation, and citizens' water use was in crisis. Due to over-exploitation, the groundwater level has been declining year by year, shallow wells have dried up, the water output of deep wells has decreased, and untreated industrial and domestic sewage has been discharged, which makes many wells on the alluvial fan of Yongding River abandoned due to pollution. In 1970s, the urban area formed a funnel area of 1000 square kilometers. By 198 1 summer, the urban depressurized water supply area is as high as 2 12 square kilometers, accounting for 55.5% of the urban water supply area.
Although the city invested a lot of money to build the Eighth Water Plant with a daily water supply capacity of 500,000 cubic meters and the Tiancunshan Water Purification Plant with a daily water supply capacity of 6.5438+0.7 million cubic meters, it still could not meet the demand, resulting in a serious "water shortage" in the urban area in the late 1970s and early 1980s. At that time, more than half of the urban areas were depressurized or supplied with water in a limited time, and 30% of the completed buildings could not be used because there was no water; Residents living in Qinghe, Banbidian, Shilibao and Longzhaoshu get up in the middle of the night to fetch water. The water crisis lasted until 1990, the first phase of the ninth water plant was flooded, the contradiction between supply and demand of tap water was alleviated, and the safety and stability of water supply were guaranteed.
The largest surface water plant in Asia, the ninth water plant.
In order to solve the problem of water shortage in Beijing, the Beijing municipal government decided to build the ninth water plant with a daily water supply capacity of one million cubic meters in 1984. The project started in May, 1986 with a total investment of about 6 billion yuan. The project is constructed in three phases, with a daily water supply capacity of 500,000 cubic meters. By June 1999, the third phase of the project was completed, with a daily water supply capacity of10.5 million cubic meters, accounting for half of Beijing's water supply capacity. Its completion and water supply have fundamentally alleviated the water shortage in Beijing. At present, it has become one of the largest modern large-scale drinking water plants in Asia with the most advanced equipment and the best water quality, and plays an important role in the economic construction and urban development of the capital.
The ninth water plant takes Miyun Reservoir as the water source, and builds water intake plants in Miyun Reservoir and Huairou Reservoir respectively. Raw water is delivered to the net water distribution plant of the ninth water plant by connecting a ductile iron pipe with a diameter of DN2600mm×33Km and three steel pipes with a diameter of DN2200mm×42Km. In the tap water treatment process, in addition to the conventional water treatment process of dosing-coagulation-clarification-filtration, the Ninth Water Plant also adopts the advanced purification process of activated carbon adsorption and chlorination disinfection to further remove astringency, odor and various organic substances in the water, and finally sends the produced purified water that meets the national sanitary standard for drinking water to the urban water distribution network.
The tree pipe network becomes annular.
Since the founding of New China, the water supply company has not only increased the urban water supply capacity, but also increased the laying of urban water supply pipelines and continuously increased the density of water supply network. It rose rapidly from 364 kilometers on the eve of liberation to 65438+6042 kilometers in 1999, with an average annual increase of more than 1 10 kilometers, which is equivalent to 12 times of the average paved area in the 40 years before the founding of New China. Before the founding of New China, the water supply scope was limited to the city center, and developed to an area of more than 500 square kilometers near the city.
Before liberation, the water supply network in Beijing was dendritic, dense in the east and sparse in the west, high in the east and low in the west, and the service pressure was extremely unbalanced. With the construction of the third and fourth water plants and the laying of the main water supply pipeline, the circular water supply pipe network within the third ring road in the urban area has basically formed1958; By 1989, the circular pipe network with a diameter above 1 m is basically perfect; Up to now, all the water supply pipelines of the Fourth Ring Road have been connected, and all the water supply pipelines in the urban area have been connected into a spider-like ring pipe network. The interconnected water supply network not only balances the regional service pressure, but also reduces the water supply radius of all water plants in the urban area, which can effectively implement complementary water supply and improve the reliability of safe water supply.
Localization of water meter production
At first, water meters were mainly managed and maintained. Shi Jing Water Supply Co., Ltd. started to supply water from 19 10, but there was no meter to measure the amount of water sold, so it adopted the method of selling water tickets to users in advance and selling water by tickets later. After that, the water fee will be cancelled, and the water fee will be calculated by the user on a monthly basis, with a monthly fee of 1.2 silver per household. 1940, the water supply administration of Beiping Special City began to rent and sell water meters, so a water meter course was set up in 1942, which was responsible for the testing and management of water meters. At that time, Japan, the United States, Britain, Germany, France and other eight countries used more than 30 kinds of water meters. 1949 set up a water meter unit and began to repair water meters. At that time, there were only 2 1 employees, and the equipment for repairing water meters was rudimentary. There was only one machine tool, one drip meter and one look-up meter. 1953 set up a user-level water meter section with 700 water meters per month. Until 1958, with the transformation of table repairing technology to assembly line operation, the number of table repairing increased greatly.
From 65438 to 0958, the water meter department sent Li Wencheng and other relevant personnel to Shanghai and Guangzhou Water Supply Company to study the technology of making water meters. In May of the same year, after Gao Shen, secretary of the Party Committee of the Water Supply Company, made a report on the mobilization of the Great Leap Forward, all the staff got rid of superstitions, emancipated their minds, worked hard, and excelled in craftsmanship, and finally produced the first Dongfeng brand water meter with the caliber of 1 1 in June. The water meter is a hygrometer, and the maximum cumulative measurement value is 65438. After the water meter was successfully developed, 100 water meter was produced in small batches as a birthday present in July, 958, and the production of 1000 water meter was completed that year.
Since the water mirror water meter was successfully developed and registered in the 1970s, household water meters in Beijing have developed rapidly. More than 20 varieties and hundreds of specifications of 15~200mm domestic and industrial water meters, such as hot and cold water meters, automatic recording pressure meters, ic card water meters and remote water meters, have been developed, with an annual output of more than 600,000 pieces, accounting for about 70% of the water meter market in Beijing and exported to 28 countries.
Science and technology lead the rapid development (1999 till now)
abstract
1On August 26th, 1999, Beijing Water Supply Group Co., Ltd. was formally established and listed, which started a thorough change in its mechanism and system, from a planned economy that relied on government subsidies in the past to a self-financing market economy. The reform has injected new vitality into the water supply industry in the capital. City Water Supply Group put forward the slogan of "ensuring water supply in the capital and striving for first-class service", on the one hand, speeding up the construction of water supply infrastructure. In the past five years, * * * has invested nearly 5 billion yuan in capital construction and technical transformation, and newly added water supply pipelines 1 1,000 kilometers; On the other hand, relying on the power of science and technology, we will continuously improve the level of foreign services so that citizens can enjoy higher standards of services while drinking safe water. By the end of 2004, the Municipal Water Supply Group had 8 waterworks 18, with a daily water supply capacity of 2.68 million cubic meters (the water supply capacity decreased due to the shortage of water resources), with a total length of 7,065 kilometers and a water supply service area of more than 600 square kilometers, and the urban tap water penetration rate reached 100%.
Water quality testing has reached the international advanced level.
19 10 years, there were only 1 person for water quality testing, and their duties were only to "test components three times a day in the morning, noon and evening, patrol the pool to prevent pollution"; 1935 bought the instrument for detecting bacteria and started the bacteria inspection. From 65438 to 0937, laboratory technicians were hired, but there were only six testing items, all of which were manually operated, and the testing means and facilities were extremely backward. In 1950s, Beijing Water Supply Company put forward the slogan "Water quality is the soul", and set up water quality departments and laboratories in various water plants, which made great progress and development in water quality, water quality inspection and water source protection.
Up to now, the Water Supply Group has formed a complete and strict water quality inspection management system, comprehensively and systematically formulated strict water production process requirements, and established a three-level water quality inspection guarantee system consisting of water quality monitoring center, water plant laboratory and operation team, with 1000 water treatment technology professionals and 1000-plus water quality inspection professionals. They work three shifts day and night to monitor the water quality seriously, carefully and strictly to ensure the quality of the factory water. In terms of detection means, the water quality monitoring center is equipped with advanced instruments and equipment, including gas chromatograph, atomic absorption spectrophotometer, ion chromatograph, liquid chromatograph, radioactive measuring instrument, electron microscope and other modern instruments. 1999 The water quality monitoring center was accredited by the National Laboratory Accreditation Committee and obtained the national laboratory qualification. At present, the number of water quality testing items in Water Supply Group has increased to 1 17, far exceeding the 35 national testing standards and reaching the international advanced level.
High-tech solution to secondary pollution of indoor water supply pipeline
The tap water from the waterworks to the main water supply pipe in Beijing can meet the national drinking water standard, but the tap water in some buildings with long construction time has been polluted twice because of aging and corrosion. It is a difficult problem to solve the secondary pollution of tap water by reforming indoor tap water pipeline. In the spirit of doing practical things for ordinary people, in order to find a solution as soon as possible, in 2002, the Water Supply Group began to develop the renovation technology of indoor water supply pipelines.
In 2003, on the basis of market research, demonstration and repeated tests, the Water Supply Group decided to adopt "cyclone" technology to derust and spray the inner lining of existing indoor pipelines in urban buildings, thus avoiding the secondary pollution of tap water during transportation. This technology can remove the scale and water rust on the inner wall of the pipeline without damaging the wall, pavement and architectural decoration, and also has the function of self-repair for the "pinhole" leakage that is difficult to find, which not only ensures the water quality of tap water, but also solves the phenomenon of waterless or water micro-phenomenon caused by the blockage and smaller inner diameter of some users. In addition, in order to ensure that the reconstructed pipeline meets the national drinking water occurrence standard, the paint adopted by the Water Supply Group has been audited by the Ministry of Health, which conforms to the relevant provisions of the Measures for the Supervision and Administration of Drinking Water Hygiene and reaches the national food-grade standard.
At the end of 2003, 72 households in Building 6 of Zuojiazhuang West Street became the first beneficiaries of the city. In 2004, the Municipal Water Supply Group continued to vigorously promote the process of indoor water supply pipeline renovation, and successively completed the indoor pipeline renovation project of 275 residential buildings in 48 communities, including Caoqiao Community, yangqiao Fuhai Community, Yuquan Road Zhaofengyuan Community, Huigu Sunshine Residential Community, He Yi West District and Fatou, and the drinking water quality of more than 40,000 households was significantly improved.
"Look up the watch and don't go out, don't pay."
In the past, every household took turns to check the meter and pay the water fee, and many residents complained about it. In order to improve the service level, from August 2000 to June 2006, Beijing Water Supply Group realized the "look-up table" work for10.3 million building residents. With the continuous improvement of people's living standards and cultural quality, modern people have higher and higher requirements for the quality of living environment, and they also have different views on table lookup, such as disturbing people and unsafe problems. Manual table lookup will inevitably lead to "wrong copying, missing copying, less copying and estimated copying".
In 2003, the Municipal Water Supply Group began to replace the traditional water meters with wired remote water meters, wireless remote water meters, power carrier remote water meters and ic card water meters, and replaced the traditional way of looking up meters with high-tech means, gradually realizing "looking up meters without entering the house". By the end of 2004, more than 50,000 IC card water meters and 20,000 remote water meters had been installed throughout the year.
In order to facilitate residents to pay water charges, in 2003, the Municipal Water Supply Group signed water fee collection agreements with nine financial institutions. So far, there are 1 1 banks and 1 enterprises in Beijing, which is very convenient for users. In February 2004, the Municipal Water Supply Group and China Everbright Bank realized self-service payment of water charges by POS machines in Sanlihe District, and 500 households no longer had to queue up at the bank to pay water charges. By the end of 2004, 80 communities had installed POS machines. In addition, the Municipal Water Supply Group will also complete the upgrade of the marketing payment accounting processing system, build an information platform with banks, and gradually realize the "payment without going out" of users through online transfer and telephone payment. At present, Fuyang Water Industry Company (Yanqing), a Beijing Water Supply Group, has taken the lead in realizing that residents "live at home after paying the water fee".
Single-line water supply service
In order to continuously improve the water supply service level in the capital and provide better services for the citizens, on September 28th, 2002, based on the original repair service center, Beijing Water Supply Group formally established the "water supply service hotline", and its functions expanded from the single repair service in the past to the tap water repair, emergency repair dispatching command center, water supply service consultation center, user complaint center and user report center. Remote management, time-limited control and dynamic tracking of maintenance stations and classes through computer network system provide multi-level and all-round water supply services for the society, which is the bridge and link between water supply groups and users.
As long as you call the "66 189955" water service hotline, you can get satisfactory answers to the questions about tap water supply. Since its establishment more than two years ago, the water service hotline has received more than 280,000 messages, including more than 80,000 messages for repair, more than 70,000 messages for consultation/kloc-0, more than 4,000 messages for complaints, more than 800 messages for reports and more than 20,000 messages for other information, which has more than doubled in the past three years. The timely rate of emergency repair, user consultation and complaint reporting information processing reached 100%, which realized the social commitment of Beijing Water Supply Group to "be responsive and help in case of difficulties".
In order to encourage the general public to actively participate in reporting water leakage and illegal water use, the Water Supply Group has also set up a water supply service hotline with a special fund of one million yuan to reward the first person who provides information on water leakage in the pipe network, changes the nature of water use without permission, switches to water supply or steals water. Up to now, more than 1.90 people have been awarded, and the amount of prize money has reached more than 654.38+10,000 yuan. Some citizens reported that a unit had stolen water, which was found to be true after investigation. More than 500,000 yuan of water fee was recovered, and residents got 1 1449 yuan; A citizen reported stealing water from the construction site and won the prize 1840 yuan ... Through the report of the general public, the economic loss of the group in the past two years was about 1.2 million yuan.
Application of GPS in pipeline network emergency repair
Whether the leakage point can be found quickly and accurately is an important factor to reduce the leakage of pipe network. From 65438 to 0988, Beijing Water Supply Group began to develop "Urban Water Distribution Network Management System"; 199 1 year, the system passed the technical appraisal of Beijing science and technology commission and was put into operation. From 65438 to 0995, all the basic data of the pipe network were input into the microcomputer. The application of the system makes the manual drawing of pipeline drawings and statistical data into microcomputer management, and the work efficiency is improved by 8 times and 200 times respectively. It can also replace manual drawing of emergency gate closure scheme, which makes the gate closure more timely and reduces the water leakage loss by 680,000 cubic meters every year.
In 2004, based on the "Urban Water Distribution Network Management System", Beijing Water Supply Group upgraded the system and developed the "Urban Water Distribution Network Geographic Information Management System", namely GIS Geographic Information Management System. Its successful development has realized the sharing of water supply network information with other system resources. At the same time, in order to cooperate with this system, a set of GPS satellite measurement and positioning system has been established, which provides technical support for quickly locating the gate and finding buried or no obvious reference pipe network equipment, and also wins valuable time for quick and timely repair.