Drinking water supply system hierarchical leakage protection technology background and significance of the project

Direct drinking water supply system hierarchical leakage protection technology background and significance:

1, water supply pipe in the process of water supply will be damaged to a certain extent, resulting in a waste of social resources. At present, countries around the world pay great attention to water leakage control. The size of the leakage as a measure of the operation of the water supply network indicators.

2, from the statistics of the loss rate, China's average leakage rate of 15.14% (China Water Association 1999 urban water supply yearbook statistics), at the international advanced level, from the sale of water collection percentage, 1999 was 17.87%. Is at the general level, a bit of pipe length per unit of time leakage, China is several times that of developed countries.

3, is expected in the next 10 years, China's annual water consumption will be 7.1 million m3 / d rate of increase. If you do not take corresponding measures to reduce the amount of loss, the annual water supply will have to increase. Therefore. Must strengthen the management of urban water supply network, the establishment of a sound management system. Clearly define the scope of responsibilities, strengthen internal oversight and external inspection. Minimize the loss of open leakage, hidden leakage and water theft.

4, special attention should be paid to the pipeline water loss, to phase out cast iron pipe (due to its brittle, low strength. Easy to burst pipe). Actively train leakage detection technicians, learning and mastering leakage detection of new technologies, new equipment, or hire a professional leakage detection company, leakage point census and leakage rate determination, to minimize the leakage of water.