摘要
[目的]针对现有红外降温设备响应时间长、红外降温耗时久的问题,开展优化研究。[方法]利用基于水雾颗粒的吸收、散射和水膜降温双重作用衰减目标物体的红外辐射强度,从而提高红外降温系统响应速率的原理,设计旋流式复合喷头,通过对比试验,分析不同压力下旋流式复合喷头与传统水膜喷头的红外降温特性。[结果]结果表明,当供水压力为0.3,0.5,0.8 MPa时,相比传统水膜喷头,旋流式复合喷头的红外降温耗时分别缩短了27.9%,47.3%,46.2%,且在水雾喷出的瞬间,目标红外辐射温度与真实温度相比分别低了8.62,11.13,11.09℃。[结论]研究显示旋流式复合喷头能够有效控制目标的红外降温时长,提高降温效果。
[Objectives]Aiming at the problems of the long response time and excessive time consumption of infrared cooling equipment,an optimization study is carried out.[Methods]A special cooling method based on the combined effects of absorption,scattering of water mist particles and cooling of water film is proposed to attenuate the infrared radiation intensity of the target object and improve the response speed of the infrared cooling system.The infrared cooling characteristics of the composite nozzle and water film nozzle at different pressures are analyzed through comparative design experiments.[Results]The test results show that under water supply pressures of 0.3,0.5 and 0.8 MPa,the infrared cooling time of the composite nozzle is reduced by 27.9%,47.3% and 46.2% respectively compared with that of the water film nozzle.At the moment the water mist is sprayed,the temperatures measured by the infrared thermal imaging camera are 8.62,11.13and 11.09℃lower than the actual temperature of the target.[Conclusions]The test results show that the swirling atomizer composite nozzle can effectively control the infrared cooling time of the target object.
作者
王振
朱森林
刘银水
李良才
WANG Zhen;ZHU Senlin;LIU Yinshui;LI Liangcai(China Ship Development and Design Center,Wuhan 430064,China;School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《中国舰船研究》
CSCD
北大核心
2022年第4期170-176,共7页
Chinese Journal of Ship Research
基金
国家部委基金资助项目(41408010404)。
关键词
复合喷头
红外辐射
降温特性
增益
composite nozzle
infrared radiation
cooling characteristics
gain
