Galvanized steel sheet is a kind of welded steel sheet with hot-dip or electro galvanized coating on its surface, which is widely used in construction, household appliances, vehicles and ships, container manufacturing, mechanical and electrical industry, etc. Hot dip galvanized steel sheet (SGCC): galvanized, bright white, small zinc flower (difficult to see), large zinc flower can obviously see hexagonal flower block. Hot dip galvanized steel sheet (SGCC) has an advantage over electro galvanized steel sheet (SECC). The bending and section of SECC are easy to rust, and the corrosion resistance of SGCC is much better under the same conditions.
Main characteristics: corrosion resistance, painting property, formability and spot welding property. It is widely used, mainly used for small household electrical appliances which need good appearance. According to zinc classification: the size of zinc flower and the thickness of zinc layer can explain the quality of zinc plating, the smaller the thicker the better. Manufacturers can also increase fingerprint resistant processing. Another is that it can be distinguished by its coating. For example, Z12 represents the total amount of double-sided coating 120g / mm.
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The people are most concerned about the use of water, water pressure stability, water price is not expensive, water quality is good, but the water pressure, water fees, water quality problems, in fact, have a direct relationship with the water supply model.
Under the traditional shared water meter model, 1 million households in Changsha, Hunan Province had to endure the difficulty of paying water fees, expensive water fees, unstable water pressure at the peak, uncontrolled water supply tanks, and inaccessible water quality. Guaranteed and annoying water problems.
How to fundamentally solve these problems? Since 2013, Changsha has fully started the reconstruction of water-receiving households, and invested 1.2 billion yuan to implement the “one-for-one†conversion of tap water to users of 500,000 households in the city for free for three years. Up to now, about 200,000 households and 600,000 residents in the city have enjoyed the practical results brought about by this livelihood project. They have enjoyed high-quality water services and water security has been guaranteed. In 2015, Changsha will continue to implement the reconstruction of households for 200,000 residents in the urban area. Behind the reform of the "small water meter," it highlights the government's livelihood and feelings.
Background: Contradictions under the "Total List" Water Supply Model Currently, the urban water supply is broadly divided into two modes. One is the "master" water supply model and the other is the "one household, one meter" water supply model.
The “total form†water supply model refers to a trade settlement water meter installed by one or several water supply companies in a community or building. Under the general statement model, the construction, management and maintenance of the pipeline network after the master list is the responsibility of the property right entity. The water supply enterprise collects the water fee from the user according to the total amount of water meter, the water supply service uses the total table as the boundary, and the water meter within the meter is shared by the water meter. User pool. The “one-for-one†water supply model refers to the installation of water meters in the form of household households. In principle, a household water meter is installed. The water meter is installed next to the residential building. The service of the water supply enterprise extends to each household, and the residents directly and the water supply enterprise. Establish a trade settlement relationship.
In the past, most of the residents' water supply facilities in Changsha have been provided with a “total meter†water supply model, which has led to a series of water problems, such as difficulty in use of water, poor water quality, and high price of water. The water supply facilities after the “main meter†have been managed by units and property companies. No management, when the water pipe burst often repairs are not timely or not in place, resulting in low water pressure in the household or even water is not available; also because the management is not in place, in many secondary water supply districts have appeared secondary water supply tank cleaning and disinfection does not In place, there are serious water safety hazards; combined with the fact that the vast majority of old residential water supply facilities have been “out of serviceâ€, the phenomenon of internal leakage of tap water is more common, which not only results in the waste of water resources, but also the residents have to pay for the missing water. This led to the emergence of “aquatic waterâ€, and some users therefore refused to pay water fees, and the contradiction between water supply and supply was intensified.
Initiatives: Three-year investment of 1.2 billion free renovation of 500,000 households how to crack water problems, to protect the safety of water for the citizens of Changsha, the municipal government attached great importance to this. “The transformation of households' tables is a project of people's livelihood and public welfare. All relevant units must strengthen coordination and actively support and accelerate the reform of 'one household and one form' of tap water.†In 2011, the municipal party committee and the municipal government decided to push forward the transformation of household tables. , And successively introduced the secondary water supply standard management and household table reform related policies, determined the secondary water supply management model, and clarified the need to gradually realize the service of water supply companies to end users.
In June 2012, Changsha's Leading Group for Household Form Renovation and Secondary Water Supply Management was formally established. It is mainly responsible for the overall planning, guidance, and coordination of the reform of the household table.
In August of that year, with the approval of the municipal government, the Water Supply Administrative Department and the water supply company established the Changsha Municipal Household Renewal and Secondary Water Supply Facilities Construction Headquarters (hereinafter referred to as the Municipal Household Reform Headquarters), responsible for the organization of the city's household table reconstruction work. Implementation. The Municipal Water Industry Group is responsible for the implementation of the household surface reconstruction project.
The Municipal Household Reform Headquarters conducted a comprehensive survey of urban water use and residents' actual payment of water prices. With reference to the experience of the same industry in the country, the Municipal Reform Headquarters has meticulously devised an improvement plan. From 2013 to 2015, Changsha plans to invest 1.2 billion yuan to provide free 500,000 households in the urban area. Perform the transformation of the household table.
Effectiveness: It is easy to use water to buy water, and the water fee is also cheap. In accordance with the principle of “coordinated planning, overall promotion, and step-by-step implementationâ€, Changsha will complete the conversion of 500,000 households from 2013 to 2015. Among them, 100,000 were completed in 2013 and 200,000 were completed in 2014 and 2015 respectively. After the three-year period expires, the government will again formulate relevant policies.
Liao Yiying, a resident of Liaojiawan Community in Yuhua District, and her more than a thousand neighbors, became the first beneficiaries of Changsha's household surface reconstruction work. “Everyone used to collect water fees for each building, and it was very difficult to collect water fees each time.†Liao Yiying said that she had been responsible for collecting Loudong water fees, but due to the serious leakage, sub-meters and master tables are not correct. At the same time, residents are often reluctant to cooperate with high water fees. The residential area in which she lives has been transformed into households, and the water problems that have plagued everyone for years have also been solved. “A family, a table, no one has to complain about eating 'big pot'. Before the five or six yuan a ton of water charges, has now been unified to 2.58 yuan / ton, my family can save ten yuan per month water fee." Liao Yiying laugh Said.
In the newly built Wanjing Waterfront Community, due to the completion of the construction, it has realized “one household, one meterâ€, and the service of the water supply enterprise can be extended to the terminal. The residents do not have to purchase water through the property. Just remember the water collection point number and they can buy it by themselves. water. "Every month's information on water consumption, water fee balances and other information will be sent directly to my mobile phone via SMS, and water will be used to make it easier to buy water." said Ding residents, Mr. Ding.
Safeguard: The water supply service extends to the end user. After the completion of the transformation of the household table, the service of the water supply enterprise can be extended to the end user. The water quality is controlled by the water supply enterprise and the secondary water supply facility is managed in strict accordance with national regulations to ensure safety. Li Qun, executive deputy commander of the Municipal Household Reform Command, and chairman of the Changsha Second Water Supply Co., Ltd., said that all water supply facilities outside the user's water meter are managed and managed by the water supply company. The water supply companies set up 24 hours complaints and repair hotlines, and received user consultations, repairs and complaints all the time, and water problems such as water pressure and water quality can be resolved in a timely manner.
At the same time, the procurement, design, construction, supervision, equipment and materials involved in the reconstruction of the household table are all subject to the principle of “fair, fair, and openâ€. All the products are pipe fittings of the national first-line brand, and the quality is guaranteed. .
In 2013, Changsha had completed the reconstruction of households with 120,000 households. In addition to some projects that could not be implemented due to site conditions, user wishes, and other reasons, 200,000 households will be completed by the end of the year. 2015 is the last year of the Changsha household surface reconstruction project, and plans to complete 200,000 household table transformation plans. “The ultimate goal of our household remodeling is to open the 'last mile' of serving the people so that the citizens of Changsha can truly enjoy the quality service of the water supply company,†said Li Qun.
Changsha invests 1.2 billion "one household, one watch" reconstruction
[China Instrument Network Industry Focus] At present, urban water supply can be broadly divided into two modes. One is the “main meter†water supply model, and the other is “one household, one meter†water supply model. In the past, most of the water supply facilities for residents in Changsha City of Hunan Province have been the “total list†water supply model, which has led to a series of water problems such as water difficulties, poor water quality, and high prices of water. How to solve water problems and ensure the safety of water for the citizens of Changsha, the municipal Party committee The municipal government attaches great importance to this.