CAJ | 학술논문

实验研究了水质工况对硫酸钙污垢特性的影响，在管内流速、入口温度、工质浓度、化学方程式和阴离子浓度5个方面分别研究氯离子和硝酸根离子对硫酸钙结垢特性的影响。结果表明，阴离子对硫酸钙污垢的形成有一定的促进作用，但这种促进作用受实验管段流速的影响，流速越大，促进作用越小，与管段入口温度和工质浓度没有明显关系。电镜观察结果显示，含有大量硝酸根离子的硫酸钙溶液在不锈钢圆管内结垢致密且厚重，工质溶液以条状和块状混晶析出硫酸钙晶体，晶体紧密的聚集。含有大量氯离子的硫酸钙溶液在不锈钢圆管内结垢疏松且均匀，工质溶液以条状析出硫酸钙晶体，晶体间没有明显的聚集现象。
실험연구료수질공황대류산개오구특성적영향，재관내류속、입구온도、공질농도、화학방정식화음리자농도5개방면분별연구록리자화초산근리자대류산개결구특성적영향。결과표명，음리자대류산개오구적형성유일정적촉진작용，단저충촉진작용수실험관단류속적영향，류속월대，촉진작용월소，여관단입구온도화공질농도몰유명현관계。전경관찰결과현시，함유대량초산근리자적류산개용액재불수강원관내결구치밀차후중，공질용액이조상화괴상혼정석출류산개정체，정체긴밀적취집。함유대량록리자적류산개용액재불수강원관내결구소송차균균，공질용액이조상석출류산개정체，정체간몰유명현적취집현상。
The experiment research on the influences of water conditions on CaSO4 fouling characteristics. The study investigated the influences of NO3-and Cl-on CaSO4 fouling characteristics such as flow velocity,inlet temperature,working fluid concentrations,chemical equations and anion concentrations. The results showed that anions increased the formation of CaSO4 fouling in a certain range,and the increase of fouling formation was affected by flow velocity,had no obvious relationship with inlet temperature and working fluid concentrations. The results of scanning electron microscopy showed that the fouling in the test tube where working fluid contained large amounts of NO3-was dense and thick,and working fluid precipitated in the form of calcium sulfate crystals,which clustered together. In the circular tube where,CaSO4 solution contained large amounts of Cl-,the fouling turned out to be loose and uniform,and working fluid solution precipitated in the form of calcium sulfate crystals,which did not cluster.