Water supply network stability index system and evaluation method thereof

A technology of index system and evaluation method, applied in general water supply conservation, instruments, data processing applications, etc., can solve the lack of statistical analysis and evaluation verification of pipeline data, immature index system of physical and chemical stability of water supply pipe network surface, and lack of comprehensive stability To reduce the evaluation period and other issues

Active Publication Date: 2018-11-06
SHENZHEN WATER GRP CO LTD
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  • Claims
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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

Method used

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  • Water supply network stability index system and evaluation method thereof
  • Water supply network stability index system and evaluation method thereof

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Example Embodiment

[0033] Example 1

[0034] The present invention preferably obtains the following water supply pipe network stability index system and its evaluation method through experiments, and the finally obtained evaluation system that can be used in practice is as follows:

[0035]

[0036]

Example Embodiment

[0037] Example 2

[0038] Large samples were taken of the pipe network water and in-service pipelines in S City, including more than 1,000 pipe network water samples and more than 100 in-service pipeline samples. Through the statistical analysis of the above-mentioned indicator system of water samples and pipeline samples, the above-mentioned method can be verified by large sample data.

Example Embodiment

[0039] Example 3

[0040] There are frequent complaints from users of yellow water in the water supply area of ​​the BJS Water Plant in S City. After water sample determination and pipe scale composition determination, the annual average value of the water output from the water plant: alkalinity 30mg / L; hardness 50mg / L; CCPP1.2mg / L; Scale component of water supply pipe in service area That is, the water supply pipeline in this area is in a slightly corroded state. After evaluation, the water plant has carried out remineralization technology to improve the alkalinity and hardness of the water plant; the CCPP has been increased to 80mg / L, 80mg / L, and 3mg / L; After that, the water supply network was upgraded to a basically stable state, and the yellow water complaints were basically eliminated in the service area.

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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...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y02A20/152
Inventor 靳军涛黄河洵张金松
Owner SHENZHEN WATER GRP CO LTD
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