The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)
- Volume 4 Issue 4 Serial No. 13
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- Pages.16-21
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- 2001
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- 2287-9706(pISSN)
Waterhammer for the Intake Pumping Station with the Pump Control Valve
펌프제어밸브를 사용한 취수펌프장에서의 수격현상
- Published : 2001.12.01
Abstract
The field tests on the waterhammer were carried out for PalDang intake pumping station of the metropolitan water supply 5th stage project. The pumping station was equipped with the pump control valve as the main surge suppression device and the surge relief valve as auxiliary. However, the pump control valve had not been early controlled in the planned closing mode, and the slamming occurred to the valve which abruptly closed during the large reverse flow. Because the pressure wave caused by the pump failure was superposed on the slam surge, the upsurge increased so extremely that the shaft of the valve was damaged. It was desirable that the surge relief valve was installed in the pumping station or near the pump exit for the delay of response. After reforming the oil dashpot of the pump control valve, the sliming disappeared and the measured pressure was in fairly good agreement with the results of simulation. In case of three pumps for
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