Research on the Measures of Improve the Flow Pattern of the Forebay of City Intake Water Pumping Stations

Abstract:

City intake water pumping stations are restricted by bank slope conditions of water source areas and land use restrictions etc. Intake structures are difficult to be arranged in accordance with the requirements of hydraulic conditions. Therefore, adverse flow phenomena such as bias flow, recirculation and vortex are easier to generate in the forebay.The adverse flow imparts an adverse effect upon the pump inlet condition, so as to negatively influence safe operation of the pumping station. Physical models were tested according to layout characteristics of a city intake water water pumping station to research the reasons of bad flow conditions occurred in the caisson type forebay. The study found that the bottom sill in the forebay would improve the inflow pattern. The test results showed that the sump of the pumping station could effectively improve the flow pattern in the forebay and improve the efficiency of the pump operation.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 1856-1861
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.1856
• Online since: May 2012
• Authors: Jian Gang Feng*, Xin Li
• Keywords: Bottom Sill, Forebay, Inlet Flow Patterns, Intake Water Pumping Stations

References

[1] Chuanxin Qiu: Pumping Station (Wuhan University Press, China 2001) In Chinese.

[2] Shurong Chen, Jing Qiu: Pearl River NO.4 (2006), pp.15-17, In Chinese.

[3] Yonghua Mai: China Rural Water and Hydropower NO.10 (2005), pp.85-86, In Chinese.

[4] Jiren Zhou: Journal of Jiangsu Agricultural College Vol.19 NO.4 (1998), pp.93-96, In Chinese.

[5] Cheng Liu, Chunsheng Ma: Journal of Anhui Institute of Architecture Vol.2 NO.1 (1994), pp.9-12, In Chinese.

[6] Jiangang Feng, Jie Li: Advances in Science and Technology of Water Resources Vol. 30 NO.2 (2010), pp.70-74, In Chinese.