ANALYSIS AND SOLUTION OF OVERLOAD OF THE COOLING WATER PUMPS IN A TELECOMMUNICATION BUILDING IN SHANGHAI
By Song Yunyu
Two pumps were parallelly installed in a cooling water system.One was seriously overloaded immediately after the other had been shut down. Investigation and analysis shows that the short-cut of a large quatity of water in the system caused abnormal piping characteristics resulted in the single pump operating at over high power work point. An expedient solution is to shut the by-pass valve. Suggestions shout future operation are offered.