冯杭华,陈海涛,施翔,等. 外来水量诊断法在污水管网预诊断中的应用[J]. 水利水运工程学报,2022(4):62-69. doi: 10.12170/20210518001
引用本文: 冯杭华,陈海涛,施翔,等. 外来水量诊断法在污水管网预诊断中的应用[J]. 水利水运工程学报,2022(4):62-69. doi: 10.12170/20210518001
(FENG Hanghua, CHEN Haitao, SHI Xiang, et al. Application of extraneous water quantity diagnosis method in pre-diagnosis of sewer network system[J]. Hydro-Science and Engineering, 2022(4): 62-69. (in Chinese)). doi: 10.12170/20210518001
Citation: (FENG Hanghua, CHEN Haitao, SHI Xiang, et al. Application of extraneous water quantity diagnosis method in pre-diagnosis of sewer network system[J]. Hydro-Science and Engineering, 2022(4): 62-69. (in Chinese)). doi: 10.12170/20210518001

外来水量诊断法在污水管网预诊断中的应用

Application of extraneous water quantity diagnosis method in pre-diagnosis of sewer network system

  • 摘要: 为实现污水管网全覆盖、全收集、全处理目标,全国各地区陆续开展排水管网排查与整治项目。以“长江大保护”为代表的污水提质增效项目指出,在全面开展排查修复工作之前,应对管网进行预诊断。提出了基于外来水量分析的诊断方法,介绍了外来水量预诊断的目的、意义、诊断内容及技术路线,并综合运用水量平衡法、化学质量平衡法和基于流量测量的方法对“长江大保护”项目中的南方某城市排污管网进行了诊断。诊断结果表明:该城市污水系统整体外来水占比约为16%,但局部汇水区域旱天外来水量达到50%以上;该市雨水入流现象严重,约一半以上汇水区域雨水入流量达到30%以上。排污管网预诊断,对管网排查、修复工作具有一定的指导意义。

     

    Abstract: In order to achieve the goal of full coverage, full collection and full treatment of sewer system, many cities have carried out investigation and renovation projects of drainage network. The project of sewage quality and efficiency improvement represented by “Yangtze River Protection” pointed out that the pre-diagnosis of pipe network should be carried out before the comprehensive investigation and renovation work. In order to solve this problem, a pre-diagnosis method based on extraneous water quantity analysis is proposed. This paper introduces the purpose, significance, diagnosis content and technical route of the pre-diagnosis method, and comprehensively uses the water balance method, chemical mass balanced method and the method based on flow measurement to diagnose the sewage network of a southern city in the “Yangtze River Protection” project. The diagnosis results show that: the overall proportion of extraneous water in the sewage system of a southern city is about 16%; but the extraneous water in some catchments is more than 50% in dry days; the rainwater inflow in rainy days is serious, and more than half of the catchments are more than 30%. The pre-diagnosis of the drainage network has certain guiding significance to the investigation and renovation of the pipe network.

     

/

返回文章
返回