低温混合工质大质流密度流动传热试验系统  

Experimental system for flow and heat transfer of low temperature mixed refrigerant with high mass flow density

作　　者：陈林 马爽 张晓慧 陈嘉祥 密晓光 冯永昌 徐振军[4] 陈杰 CHEN Lin;MA Shuang;ZHANG Xiaohui;CHEN Jiaxiang;MI Xiaoguang;FENG Yongchang;XU Zhenjun;CHEN Jie(Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;R&D Center,CNOOC Gas&Power Group,Beijing 100028,China;College of Civil Engineering&Architecture,Qingdao Agricultural University,Qingdao 266109,China)

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]中国科学院大学,北京100049 [3]中海石油气电集团技术研发中心,北京100028 [4]青岛农业大学建筑工程学院,山东青岛266109

出　　处：《流体机械》2023年第11期15-21,共7页Fluid Machinery

基　　金：中国科学院前沿科学重点研究计划项目(ZDBS-LY-JSC018);中海石油气电集团有限责任公司研究项目(GP-YF-CB-2020-015/016);国家自然科学基金项目(52106033);中国科学院人才启动经费项目。

摘　　要：针对目前大质流密度条件绕管式换热器试验数据缺乏的现状,本研究搭建了可实现低温混合工质大质流密度条件试验工况控制和数据测试需求的试验系统。试验系统包括压缩机、冷却塔、冷水和冷冻机组、低温液化换热器等关键装备,可进行混合工质的压缩-冷却液化-相变传热流动控制和可视化等测试研究。试验平台可实现质量流量密度在20~140 kg/(m^(2)·s)范围内测试,系统温度误差为±0.1℃,压力误差小于10 kPa,压降误差小于2 kPa,干度误差小于1.4%。在预冷段试验区域干度为0.4,质流密度120 kg/(m^(2)·s)下实现了平稳运行,获得了稳定循环数据验证。Considering the lack of experimental data for spiral-wound heat exchanger under high mass flow conditions,an experimental system for the flow and heat transfer characteristics of cryogenic mixed hydrocarbon working medium has been built to meet the requirements of experimental control,data acquisition and analysis.The experimental system includes compressor,cooling tower,chiller,freezer,low-temperature liquefaction heat exchanger,electric heater,test sample and other key experimental equipment,which can carry out the process of compression-cooling liquefaction-control and gasification of main mixed hydrocarbon working fluid.The mass flow density ranges from 20~120 kg/(m^(2)·s).The temperature error of the experimental platform is±0.1℃,the system pressure error is less than 10 kPa,the pressure drop error is less than 2 kPa,the vapor quality error is less than 1.4%.Under the conditions of 0.4 vapor quality and 120 kg/(m^(2)·s)mass flow density,the system was smoothly operated with stable data obtained.

关 键 词：LNG/FLNG 绕管式换热器 大质流密度 流动传热 

分 类 号：TH12[机械工程—机械设计及理论] TQ021.4[化学工程]