Water supply network stability index system and evaluation method thereof

Abstract

The present invention belongs to the technical field of water supply detection, and provides a water supply network stability index system and an evaluation method thereof. The method comprises a water quality stability evaluation index system and a supply network surface physicalchemical stability index system. The water quality stability evaluation index system comprises total alkalinity, calcium hardness and CCPP, and the supply network surface physicalchemical stability index system comprises a pipe scale total amount, an [Alpha]-FeOOH, [Beta]-FeOOH and Fe3O4. The application of the watersupply network stability index system and the evaluation method thereof can effectively evaluate the stability of the water supply network and can accurately predict the pipe network health conditionso as to facilitate more comprehensive guide of the operation and maintenance business such as water supply network water quality guarantee and pipeline update maintenance.

Description

technical field [0001] The invention belongs to the technical field of water supply detection and provides a water supply pipe network stability index system and an evaluation method thereof. Background technique [0002] During the transportation of drinking water in the pipe network, due to pipe wall corrosion and other reasons, "yellow water" and other phenomena will occur, resulting in substandard water quality and affecting user experience. The occurrence of the above phenomenon is related to the chemical stability of the water quality. Therefore, in the operation process of major water companies, the occurrence of the above phenomenon is generally judged by the chemical stability of the water quality. In recent years, the operation experience of the water supply pipe network shows that the physical and chemical stability of the pipe wall of the water supply pipe network also affects the occurrence of "yellow water" and other phenomena. In addition, the physical and ch...

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Problems solved by technology

[0016] (1) The water quality stability index system of the water supply network and its application are relatively mature at present, but its main defect is that it only pays attention to the influence of the water quality itself on the stability of the pipe network scale, ignoring the stability of the pipe network scale itself

Therefore, it can only be used as a reference in the application of the index system, and it is difficult to effectively evaluate the stability or health of the water supply network.

[0017] (2) The surface physical and chemical stability index system of the water supply pipe network is not yet mature, mainly due to the lack of sufficient actual pipeline data for statistical analysis and evaluation verification

[0018] (3) Lack of a comprehensive stability evaluation method that couples the above two methods

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