干冰膨胀烟丝生产线循环冷却水的水处理-烟草科技.PDF

/TobaccoScienceTechnology /EquipmentApparatus 2008 7 ( 252 ) 　, , , 张家口卷烟厂有限责任公司, 河北省张家口市钻石北路 9 号　075000 :干冰膨胀;循环冷却水;水处理; 蚀;结垢 :由于卷烟厂大多采用自来水作为循环冷却水源, 随着水分的不断蒸发,水中碳酸氢盐浓度的增加, 以及自来水中存在较高的氯离子, 由此造成 蚀与结垢现象, 对干冰膨胀烟丝生产线设备产生许多不良 影响:CO高/低压压缩机排气压力、温度较高;贮罐压力超出设定值,而向大气中排放;冷凝器管壁大面 2 积生锈,系统管道、换热器内存在黏泥等, 从而影响设备的正常运行。为此采用化学水处理法,使用低氯 离子的自来水作为冷却水源,在运行初期进行清洗预膜处理, 日常投加阻垢缓蚀剂、杀菌灭藻剂,达到阻 垢缓蚀的目的。改进后的干冰膨胀烟丝生产线循环冷却水系统运行效果良好,结垢、 蚀等均控制在正 常范围内。在日常运行中,通过动态监控水质, 及时调整药剂量, 定时清理, 保证了循环水系统的正常安 全运行。 :TS452.5　:B　:1002-0861 (2008 )07 -0022 -03 TreatmentofCirculatingCoolingWaterinDryIceExpandedTobaccoSystem HUANGQIANG, ZHANGDONG-MING, KANGXIAO-CHUN, andZHANGBAO-WEN ZhangiakouCigaretteFactoryCo., Ltd., Zhangiakou075000, Hebe,iChina Keyword:sDryiceexpansion;Circulatingcoolingwate;rWatertreatmen;tCorrosion;Deposit Abstrac:tWhentapwaterwasusedasthesourceofcirculatingcoolingwate,rtheincreasingbicarbonate concentrationresultedfromwaterevaporation, andchlorineionsintapwaterledtocorrosionandchemical depositinthedryiceexpandedtobaccosystemandmanynegativeconsequence,ssucha,shigherdischarge pressureandtemperatureofCO high/lowpressurecompressor,sCO exhausttoatmospherebecausethe 2 2 pressureinstoragetankwashigherthanthesettingvalu,eseriousrustoncondenserpipelin,esludgeresided insystempipelineandheatexchange,randthenormalrunningofthesystemwasaffectedaccordingly. Therefor,ethechemicallytreatedtapwateroflowchlorinelevelwasused, washingandprecoatingwere carriedoutatthebeginningofrunning, andanticorrosiv,ebactericideandalgicidewereappliedregularly. Themiprovedsystem ranwel,ldepositandcorrosionwerecontainedwithinanormalrangethrough dynamicallywaterqualitymonitoring, tmielyagentdosageadustingandregularcleaning. 　　 CO , 2 , CO / , 1; 3,、 2 、、, 、, 2。 2 CO、,