CAJ | 학술논문

为研究循环水中离子对析晶污垢沉积特性的影响，实验研究了循环水中不同阴离子对换热管内污垢特性的影响。考察了工质流速、入口温度、工质浓度以及溶液内阴离子浓度对污垢沉积的影响。结果表明含有硝酸根离子循环水的污垢热阻高于氯离子的污垢热阻，并且两种循环水形成污垢热阻的差距随入口温度、管内流速和CaSO4浓度发生变化。伴随阴离子浓度升高，污垢热阻渐近值逐渐变大。硝酸根对热阻提升的影响大于氯离子对热阻的影响。
위연구순배수중리자대석정오구침적특성적영향，실험연구료순배수중불동음리자대환열관내오구특성적영향。고찰료공질류속、입구온도、공질농도이급용액내음리자농도대오구침적적영향。결과표명함유초산근리자순배수적오구열조고우록리자적오구열조，병차량충순배수형성오구열조적차거수입구온도、관내류속화CaSO4농도발생변화。반수음리자농도승고，오구열조점근치축점변대。초산근대열조제승적영향대우록리자대열조적영향。
For researching the anion affection to the fouling deposition characteristics, the experiment chooses two kinds of anion that has effect on the fouling deposition in the tube. The main velocity, inlet temperature, CaSO4 concentration and anion concentration affection are investigated. It is found that the fouling resistance of nitrate circulating water is higher than that of the chloridion circulating water. The difference value of fouling resistance between two anions is varied with the main velocity, inlet temperature and CaSO4 concentration. The fouling resistance becomes higher with increasing anion concentration. The influence of nitrate on the rise in the fouling resistance is better than chloridion.