Research On Design ＆Experiment With Membrane Oxygenator For Sea Fishery

Intensive hi-density fishery (IHDF) is the main and Promising method of '21st efficbo facility fisheq and one soluton to the side effed of declining fisherydue to increasing Watr pollution and aquac diseases. In IHDF, dissolvedoxygen(DO) determines the viability of fish and fishery efficiency because thedensity of fish is much lH in the fishpond than in the naod habhat. Hence R &D of oxygen enrichillg machine for maintaining DO has become the core of fisheryA variety of such machinery PreVals in China. but some Problems accOInPan them.It is imperative to design hi-efficient and less energy-requiring mashine fOr IHDFttis paper appied the membrane oxype maiuly used in the oPenchestsM to oxygen enricInnent in the fishery and figUred uP a novel methd ofoxygen enrichment. The pape catried out the experiment whh SUU1 membraneoxyHor and clarified the oMnenriching property of membrane oxygenatr bydelving into the flow rates of seaWate and cOInPrssed air, the air-water ratiO andtCmperatUr of seawatL And rationales of oxygen enrichInot came out. Based onthe Previous efforts. The Properties of fOur tyPes of domestic and abroadPOlyPropylene hollow-fiber membrane were investigaed and the high costeffectivemembrane was picked uP fOr use. According to the quanity of oxygen fish need.The area of membrane was worked out. Several membrane modules were designedand the author assembled a modeI machine fOr fishery After lab-scale and on-sPOttests in the fishery worshoP in Xunshan. Shandog. it was Proved tha the hi-efficiency of oxygen enrichment was obtained .The machine is under Way ofprocessing for application for state patent.