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本文介绍了一种新型的水平布置喷水排管和喷嘴的垂直向上喷水的喷水室方案,探讨了热质交换增强的机理。为进行性能比较,对该形式及常规的双排对喷形式的喷水室进行了试验研究。建立了冷却减湿过程全热交换效率η_1、通用热交换效率η_2、传热效率 X、总热交换 SWU 及绝热加湿过程加湿效率η_B 的回归实验公式、并绘制了相应的关系曲线图。比较表明新方案较双排对喷方案在相同条件下,η_1提高14～27%,η_2提高10%,X 提高5～16%,SWU 提高700～1100kg/(h·m~2)。达到同样效果,喷嘴数目可减少50%,喷水量可减少1/3。
In this paper, a new type of water spray chamber scheme with vertical water spray pipes and nozzles arranged horizontally is introduced. The mechanism of enhanced heat and mass exchange is discussed. For the performance comparison, a test study was conducted on this form and a conventional double-row spray pattern chamber. The regression experiment formulas of total heat exchange efficiency η_1, general heat exchange efficiency η_2, heat transfer efficiency X, total heat exchange SWU, and humidification efficiency η_B of the adiabatic humidification process during the cooling and dehumidification process were established, and the corresponding relationship curves were plotted. The comparison shows that under the same conditions, the new scheme can increase η_1 by 14-27%, η2 by 10%, X by 5-10%, and SWU by 700-1100kg/(h·m2). To achieve the same effect, the number of nozzles can be reduced by 50%, and the amount of water sprayed can be reduced by 1/3.