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研究开发了一种用于农业建筑的集中雾化蒸发降温系统，进行了实际生产条件下的夏季降温试验。降温装置内部为过风断面由下而上逐渐扩大的漏斗状，形成下高上低的变风速场，以延长雾滴与气流的接触时间，在较小的喷雾量下维持较高的雾滴密度分布。在装置内平均气流速度１．１～２．８ｍ／ｓ，喷雾压力０．０６～０．１６ＭＰａ，水气比０．０８～０．５的条件下进行了试验。试验结果表明该装置在０．１～０．２的较低水气比时其降温效率即可达８０％以上，室内平均气温低于室外气温２～５．５℃，比单纯采用机械通风时低４～７．５℃。室内相对湿度为７０％～９５％，通风总压力损失为４０．３Ｐａ。对装置内不同粒径雾滴的分布进行了测定与分析
Research and development of a centralized system for agricultural construction atomization evaporation cooling system, under the actual production conditions of the summer cooling test. The interior of the cooling device is a funnel with the section of the over-wind expanding gradually from bottom to top, forming a variable-speed wind field with a lower height and a lower height to prolong the contact time between the droplet and the airflow and maintain a higher droplet at a smaller spray volume Density distribution. The average airflow velocity in the device was 1.1 ~ 2.8m / s, the spray pressure was 0.06 ~ 0.16MPa, and the water vapor ratio was 0.08 ~ 0.5. The experimental results show that the cooling efficiency of this device can reach more than 80% when the water vapor ratio is lower than 0.1-0.2, and the indoor average temperature is lower than the outdoor temperature by 2 ~ 5.5 ℃. Compared with the simple mechanical ventilation Low 4 ~ 7.5 ℃. Indoor relative humidity of 70% to 95%, the total pressure loss of 40.3Pa ventilation. The distribution of different size droplets in the device was measured and analyzed