田金乙,倪龙,赵加宁

• 1:哈尔滨工业大学市政环境工程学院建筑热能工程系

摘要(Abstract)：

为解决污水源热泵中换热器防堵和防垢的问题,提出了带引射回流功能的污水旋流防阻机,并进行了砂水和生活污水分离试验。结果表明:该防阻机对砂子(75~250μm)和污杂物(<4 mm)均有较好的分离效果,分离效率分别为98.17%~100%和94.33%~96.96%。优化的溢流管与圆柱段长度比值的范围大小与离散相密度成正比。并且,引射回流装置的存在不仅实现了防堵和连续排污,还显著减轻了"溢流跑粗"的影响,提高了分离效率。防阻机的能耗基本不随溢流管与圆柱段长度比值的变化而变化,且总的能量损失较小(小于17 k Pa)。在保证较高分离效率的同时,分流比可以控制在较低的水平(小于10%),相比传统污水源热泵中的污水防阻机,可利用污水量大大提高。

关键词(KeyWords)： 污水源热泵;旋流分离器;连续底流;溢流管与圆柱段长度比值

Abstract:

Keywords:

基金项目(Foundation): 教育部留学归国人员科研启动基金(第46批);; 建筑安全与环境国家重点实验室2012年开放课题

作者(Author): 田金乙,倪龙,赵加宁

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