循环冷却水的总碱度及其计算

循环冷却水的总碱度及其计算曾建平(盐城工学院化学与生物工程学院,江苏盐城224003)摘要　不同条件下循环冷却水的总碱度有着不同理论和经验的计算。从化学热力学角度出发,考虑到浓缩倍数、离子强度和补水水质(包括总碱度、pH值和总溶解固体)等影响因素,在系统结垢之前,根据碳酸的离解平衡得到的循环冷却水的总碱度与实际较吻合。关键词　循环冷却水　浓缩倍数　化学热力学　总碱度　收稿日期:2006-09-25作者简介:曾建平(1976～),男,讲师,主要从事循环冷却水研究。E-mail:abczjp768472@163.com　TotalAlkalinityandItsCalculationinCoolingWaterZengJianping(SchoolofChemicalandBiologicalEngineeringofYanchengInstituteofTechnology,JiangsuYancheng224003)Abstract　Waterqualityofcoolingwateraffectsdirectlyscaling,corrodingandmicrobesmultiplyingetc..Amongthem,totalalkalinityofcoolingwaterisoneofimportantindicesjudgingwaterquality.Underdifferentconditions,differenttheoreticalandexperimentalcalculationsoftotalalkalinityincoolingwaterwereobtained.Fromchemicalthermodynamics,consideringthecycle,ionicintensityandmakeupwaterquality(totalalkalinity,pHandtotaldissolvedsolid),etc,inthelightofcarbonateequilibrium,totalalkalinityofcoolingwaterweregainedbeforescaling.Itsresultwasaccordedwithreali2typreferably.Keywords　coolingwater　thecycle　chem