LONGZhi-hong,XUGang,ZHUZi-peng,et al.Analysis of Drinking Water Plant Critical Production Reduction Rate in Water Supply System and Its Application[J].China Water & Wastewater,2023,39(13):76-80.
Analysis of Drinking Water Plant Critical Production Reduction Rate in Water Supply System and Its Application
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第13期
Page:
76-80
Column:
Date of publication:
2023-07-01
- Keywords:
- water supply system; critical production reduction rate of drinking water plant; pressure driven model
- Abstract:
- To ensure that there is no “loss of pressure or flow” in the pipe network is one of the safe bottom lines of water supply system. Therefore, the concept of “critical production reduction rate” of drinking water plant was proposed as one of the decision-making bases to control the production reduction of drinking water plant under abnormal working conditions. From the perspective of social psychology, this paper proposed that the minimum free water pressure in the pipe network was 0.5 m and the node range was not more than 500 m as the reference standard for whether there was “loss of pressure or flow”. The pressure driven model was used to calculate the “critical production reduction rate” by stepwise reduction method. The critical production reduction rate of a large drinking water plant in a city was estimated to be between 40% and 50%. When the water production rate of the drinking water plant was between 10% and 30%, the maximum reduction operation time was between 6.25 h and 12.50 h.
Last Update:
2023-07-01