基于M循环的火电厂冷却塔云水回收技术试验研究
M-Cycle-Based Cooling Tower Water Recovery for Thermal Power Plants
卢啸风 1王泉海 1王瀛丘 1罗玉泽 1孙佳园1
作者信息
摘要
本文基于M循环露点间接蒸发冷却塔技术，提出一种能在秋冬季节显著降低湿式冷却塔（云水）蒸发损失的技术方案。通过自行搭建的云水回收试验台，探究了不同环境及运行参数对M循环冷却塔的节水性能及冷却性能的影响。结果表明，该技术方案能有效降低蒸发损失，其节水性能与环境参数高度相关：当环境空气温度低于喷淋水温时，有明显的节水潜力；特别是在高气水比、高进水温度工况下，节水效果更为突出。试验数据显示，在重庆冬季气候下，该方案在保证冷却效果的同时，可实现10%以上的节水率。基于试验数据，拟合了节水率与关键参数的经验关系式，可为低气温工况湿式冷却塔减少云水损失提供参考依据。
Abstract
Based on the Maisotsenko cycle (M-cycle) dew-point indirect evaporative cooling technology, this paper proposes a novel scheme to significantly reduce the evaporation (plume) loss of wet cooling towers during autumn and winter seasons. A custom-built water recovery experimental rig was utilized to investigate the effects of various environmental and operational parameters on the water-saving and cooling performance of the M-cycle cooling tower. The results indicate that the proposed scheme effectively mitigates evaporation loss, with its water-saving capacity highly correlated to environmental conditions. Significant water-saving potential emerges when the ambient air temperature drops below the spray water temperature. Specifically, the water conservation effect is particularly pronounced under high air-to-water ratios and high inlet water temperatures. Experimental data demonstrates that under the winter climate conditions in Chongqing, the system achieves a water-saving rate exceeding 10% while successfully maintaining the required cooling performance. Furthermore, based on the experimental data, an empirical correlation linking the water-saving rate with key parameters was developed. This model provides a valuable reference and quantitative basis for reducing evaporation loss in wet cooling towers operating under low-temperature environments.关键词
动力工程及工程热物理/湿式冷却塔/M循环/蒸发损失/节水Key words
Power Engineering and Engineering Thermophysics/wet cooling tower/Maisotsenko cycle/evaporation loss/water conservation引用本文复制引用
卢啸风,王泉海,王瀛丘,罗玉泽,孙佳园.基于M循环的火电厂冷却塔云水回收技术试验研究[EB/OL].(2026-04-03)[2026-04-07].http://www.paper.edu.cn/releasepaper/content/202604-41.学科分类
热力工程、热机
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