Abstract: The surface evaporative air cooler is introduced in this paper, including its working principle, and main performance and characteristics. Experimental study and simulation were conducted and the influence of related parameters on the total heat transfer coefficient, convection heat transfer film coefficient, pressure drop and water evaporation rate were investigated. And then the mathematical model was established, the process calculation software was developed and the independent technology calculation ability of the product was mastered. Optimization and innovation on overall structure design, new structure type nozzle and anti-corrosion were made to some extent. At last a new type of surface evaporative air cooler product was developed and applied industrially in petrochemical plants. The application results shows that the surface evaporative air cooler has the following advantages such as good cooling effect, compact structure, light weight, flexible operation and low operating cost s, which can reduce energy consumption.

Key words: surface evaporative air cooler, principle, performance and characteristics, experimental study, process calculation software, application

摘要： 介绍了表面蒸发式空冷器的工作原理及主要性能特点; 通过实验研究模拟的形式, 考察相关参数对总传 热系数、对流传热膜系数、压力降及水分蒸发率的影响, 建立数学模型, 开发了表面蒸发式空冷器工艺计算软件, 掌 握了该产品的独立工艺计算能力; 在产品的整体结构设计、喷头结构、防腐等方面进行了不同程度的优化创新, 研制 了新型表面蒸发式空冷器产品; 产品在石化装置中进行了工业化应用。研究结果表明: 研制的表面蒸发空冷器产品冷 却效果好、结构紧凑、重量轻、操作灵活、运行成本低, 实现了生产装置节约能耗的目标。

关键词: 表面蒸发式空冷器, 原理, 性能特点, 实验研究, 工艺计算软件