超声波对板式换热器表面聚合物垢的防除效果

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中图分类号：TE345 文献标志码：A

Abstract：With thewideapplicationofpolymerdrivenoil technologyinoilfielddevelopment，thescaling problemof polymerbearing wastewaterisbecoming moreand more prominent，andseriouslyafectsthe heattransfer eficiencyandoperational safetyofheat exchangerequipment.Inorder tosolvetheproblem，atestplatformforinvestigatingthescalingcharacteristics of polymer-bearing astewaterandultrasonicanti-scalingwasestablished.Theefectofultrasonic wavesonthetheremovalof polymer scaleonthe surfaceofplateheat exchangersand its impacton heat transfer performance were explored.The results showthatthereisaninflectionpoint intheeffectof HPAMmassconcentrationonpolymer-containing solution fouling，and the increaseof temperature exacerbatedthescalingofthepolymer-containing wastewater.Theincreaseof theconcentrationof mineralsubstances inthesolutionreduced thefouling tendencyTheapplicationof ultrasonic waves significantlyreducs the presure lossoftheheat exchangerand improves the heat transfer powerandcoeficientofheat transfer.Especially when the ultrasonic frequency and power reach 50kHz and $4 0 0 ～ ＼mathrm { ＼textW }$ respectively，the descaling effect and the enhanced heat transfer effect achieve the best.

Keywords：polymerized fouling； plate heat exchanger；ultrasonic waves； heat transfer coefficient

能源的长期稳定供应对中国经济的快速友展有举足轻重的作用，目前中国的能源利用效率仅为36.5% ，结垢导致的传热效率下降已然不可忽视。（剩余12829字）