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Study on the Resin Heat Resistance Performance of Air-cooling Unit Condensate Polishing Treatment

Author: LiuWeiWei
Tutor: ChenYingMin
School: North China Electric Power University
Course: Applied Chemistry
Keywords: An ion exchange resin Condensate Polishing Filter element Grey Relational Analysis
CLC: TM621
Type: Master's thesis
Year: 2011
Downloads: 17
Quote: 0
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Abstract


In this paper, a large air-cooled unit the condensate polishing with overcast , cation exchange resin filter yuan temperature performance of the material in the physical and chemical properties under high temperature and pre - filter system . Selected six typical strongly basic anion exchange resin According to power industry standard DL/T953-2005 , filter out the three standard anion exchange resins , and selecting the air-cooled unit commonly used three cation exchange resin analog plant polishing yin Yang sub - bed system at 70 ° C , 75 ° C and 80 ° C constant temperature water bath temperature performance study . Experimental determination of the large air-cooling unit condensate polishing processing Yin , physical and chemical properties of the cation exchange resin , including volume exchange capacity , water quality scores , uniformity coefficient , seepage ground ball rate , strong base group rate of decline , the largest renewable exchange capacity change ; simultaneous determination of three anion exchange resin at 70 ° C and 80 ℃ loop runs leachables study the anion exchange resin thermal stability ; and three anion exchange resin for condensate polishing system , measured In addition to silicon effect . According to the above experimental results using gray relational and analytic hierarchy process from the resins thermal stability , physical and chemical properties , three industrial applications Condensate Polishing conducted a comprehensive evaluation of the anion exchange resin , discusses the preferred anion exchange resin condensate polishing method. Experiment also studied the heat resistance of the the prefilter wound filter element material and folded filter element material at high temperatures ; Shangan Power Plant condensate polishing system and out of the water, iron , silicon content was measured , and the power plant Determination of iron, the silicon values ??with the measured values ??of the mass spectrometer in comparison , to draw instrument correction coefficient , and the analysis of the high iron possible reasons . The results show that the cation exchange resin is not affected by temperature , good temperature resistance ; German imports gel styrene I strongly basic anion exchange resin performance ; folded filter element filter temperature resistance superior Wound . The experimental results in order to optimize the economic operation of condensate polishing system reference .

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CLC: > Industrial Technology > Electrotechnical > Power generation, power plants > Power plant > Thermal power plants, thermal power stations
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