流体机械2025，Vol.53Issue(6)：1-8,8.DOI:10.3969/j.issn.1005-0329.2025.06.001
基于喷射气流技术的翅片管换热器除灰研究
Dust removal study for finned-tube heat exchangers based on jet airflow technology
摘要
Abstract
To address the heat transfer deterioration caused by dust accumulation on outdoor heat exchangers of air-source heat pumps,a visual dust removal test rig was constructed.Using mixed particles with diameters of 10 μm and 20 μm,dust removal tests were conducted on plain finned-tube heat exchangers at different jet angles and wind speeds.Results show that under frontal horizontal jetting,when wind speed reaches 21 m/s,dust removal rate reaches 97%.Under reverse horizontal jetting at 28 m/s,dust removal rate is 40%.At 16 m/s frontal jetting speed,during the initial stage,dust removal rate increases with rising airflow angle,reaching a maximum of 94.7%at approximately 30° above horizontal.When airflow angle further increases,dust removal rate begins to decline.Dust removal mass ratio at 21 m/s frontal jetting speed also peaks around 30° at 92.9%.These findings provide important references for optimizing dust removal strategies of air-source heat pump outdoor heat exchangers.关键词
空气源热泵/翅片管换热器/喷射气流/除灰率/脏堵系数Key words
air-source heat pump/finned-tube heat exchanger/jet airflow/dust removal rate/fouling coefficient分类
机械制造引用本文复制引用
赵勇,马广兴,常琛,何怡,苑文燕,霍思源..基于喷射气流技术的翅片管换热器除灰研究[J].流体机械,2025,53(6):1-8,8.基金项目
内蒙古自然科学基金项目(2021MS05032) （2021MS05032）
