LIN Wei-qiang,YANG Nan,LIN Zi-min,et al.Project Design and Operational Optimization of a Water Intake Pumping Station for Sri Lanka Attanagalla Waterworks[J].China Water & Wastewater,2021,37(2 2):56-60.
Project Design and Operational Optimization of a Water Intake Pumping Station for Sri Lanka Attanagalla Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
2 2
Page:
56-60
Column:
Date of publication:
2021-01-17
- Keywords:
- water intake pumping station; design points; pretreatment; frequency control; water hammer protection
- Abstract:
- In order to solve the problem of water shortage in Attanangalla area of Sri Lanka, China assisted in construction of Attanagalla waterworks and a riparian type water intake pumping station, which were in accordance with relevant engineering standards of China. Process design of intake pumping station was introduced. The vertical long shaft centrifugal pump was adopted from the perspective of pump efficiency, land occupation, electromechanical investment and flood control. Rotating grid filter and rotary drum filter were used as pretreatment equipment considering large amplitude water level and algae outbreak. Through matching operation of the constant speed pump and variable frequency speed pump, it can adapt to different water supply conditions of pump group. The hydraulic transition calculation was conducted, which was calculated for water hammer caused by pump stop accidentally. Operation conditions of intake pumping station were optimized according to “pipeline air valve + air valve after pump + pressure relief valve”, which were selected as water hammer protection facilities.
Last Update:
2021-01-17