Research on Key Construction Technology of Super Duplex Stainless Steel Internal Chemical Cleaning
The 150MIGD seawater desalination project in Umm-al-Qaiwain,the United Arab Emirates is the second largest reverse osmosis seawater desalination project in the world,with a huge number of reverse osmosis pressure vessels(ROPV).The permeation side and brine side of the ROPV are inseparable from the super duplex stainless steel pipes,and the fouling adheres to the surface of the stainless steel pipes after long-term operation,which will affect the desalination efficiency.Based on this,this paper proposes a safe,convenient and environmentally-friendly chemical cleaning scheme,and innovatively puts forward two key technologies.The research results can be used as a reference for related professional researchers.
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