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《Pipeline Technique and Equipment》 2011-05
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Installation Design of the Flexible Hose for In-service Nuclear Island Cooling Water System Pump

CHEN Zheng-biao1,2,MEI Xin1,2(1.Aerosun Metal Hose Division,Nanjing 211153,China; 2.Aerosun Flexible Pipe Engineering Technology Research Center,Nanjing 211153,China)  
The pressurized water reactor nuclear power plant which requires large amounts of the metal flexible hose.In the past,the use of hoses depended on import.But now,domestic production is required.As imported and domestic hoses have different structures and properties,the original installation method cannot meet the domestic requirements,so the hoses need to be re-designed.This paper used a geometric analysis method to derive the installed length bend hose formula of respectively U-type and S-type for in-service nuclear power plants.Besides,the hose calculation lengths have been determined with available installation data.If the hose installation radius"R"is smaller than the minimum bend raduis"Rj",however,it can only be done with an added elbow.Hose samples and hose simulation installation tools have been produced for the installation test,and the result is satisfactory and comes up to the hose installation requirements.
【CateGory Index】: TM623;TL353.1
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