污水旋流防阻机在不同溢流管与圆柱段长度比值下的分离性能试验

发布时间：2018-04-28 12:38

本文选题：污水源热泵 + 旋流分离器　；参考：《高校化学工程学报》2017年01期

【摘要】：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。
[Abstract]:In order to solve the problem of heat exchanger blocking and scaling prevention in sewage source heat pump, a sewage swirl resistance machine with ejection and reflux function was put forward, and the separation test of sand water and domestic sewage was carried out. The results show that the anti-blocking machine has a good separation effect on sand (75 ~ 250 渭 m) and sundries (4 mm), and the separation efficiency is 98.17 ~ 100% and 94.33 ~ 96.96%, respectively. The range of the optimized ratio of overflow tube length to cylinder length is proportional to the discrete phase density. Moreover, the existence of ejector backflow device not only realizes the prevention of blockage and continuous discharge, but also significantly reduces the influence of "overflow coarsening" and improves the separation efficiency. The energy consumption of the resistive resistance machine basically does not change with the ratio of overflow tube to cylinder length, and the total energy loss is smaller (less than 17 kPA). At the same time, the diversion ratio can be controlled at a lower level (less than 10%). Compared with the traditional sewage source heat pump, the utilization of sewage water can be greatly improved.
【作者单位】：哈尔滨工业大学市政环境工程学院建筑热能工程系;
【基金】：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
【分类号】：TQ051.8

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