Research on improving the performance of nuclear island filters for million-kilowatt nuclear power plants
CHEN Han-bin
LI Jun-yong
YUAN Liang
KONG Xiang-yong
XIONG Ying-feng
GAO Xiang
Abstract：In the oxidation purification circuit,the performance improvement of the nuclear island filter is the key to the overall loop flow improvement.Three kinds of filter elements with different accuracy of 0.10μm,0.45μm and 5.00μm were used to carry out the flow pressure difference test and the anti-burst performance test.The results show that with the increase of flow rate,the pressure difference of the clean filter element increases linearly and is slightly larger than the design pressure difference of the system.When the filter block reaches the specified high pressure difference,its anti-burst performance can meet the requirements of field use,but after the oxidation purification loop flow increases,measures such as increasing the filter pressure difference alarm value or shortening the filter replacement cycle should be comprehensively considered from the perspective of the system to meet the safe and stable operation of the system under different working conditions.
Keywords：filter elementfilter performanceoxidation purification circuitnuclear power plant
Publication Date：2024-11-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 22-24 )