Water Hammer Control in Gravity Flow Pipeline Based on Double-valve Regulation
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
9 9
Page:
52-58
Column:
Date of publication:
2020-05-01
- Abstract:
-
The control effect of a single valve on water hammer gradually decreases in the long distance water pipelines. Therefore, the pipeline was divided into two sections for management by adding a valve, and an artificial wave source was created to effectively control the water hammer condition in the pipeline by utilizing the independence and superposition of the water hammer wave in the propagation process. MATLAB software was used to carry out numerical simulation calculation, and influencing factors of adopting double- valve coordination mode and double-valve action mode were studied. The double-valve coordination operation was beneficial to the improvement of the water hammer problem in the pipeline. Combined with the advantages of continuous two-stage adjustment of a single valve, the double valves were also closed in two consecutive stages. It was found that the maximum pressure and minimum pressure of the water hammer in the pipeline were better controlled.
Last Update:
2020-05-01