北美管道式空调制冷剂泄漏及安全性控制研究  

Research on refrigerant leakage and safety control of North American AHU

作　　者：宋玉军 杨小玲 杨文钧 杜超 赵凯强[1,3] 张燕 SONG Yujun;YANG Xiaoling;YANG Wenjun;DU Chao;ZHAO Kaiqiang;ZHANG Yan(Qingdao Haier Air Conditioner Gen.Corp.,Ltd.,Qingdao 266100;Qingdao Haier Smart Technology R&D Co.,Ltd.,Qingdao 266103;National Engineering Research Center of Digital Home Networking,Qingdao 266100)

机构地区：[1]青岛海尔空调器有限总公司,山东青岛266100 [2]青岛海尔智能技术研发有限公司,山东青岛266103 [3]数字家庭网络国家工程研究中心,山东青岛266100

出　　处：《家电科技》2024年第6期94-99,共6页Journal of Appliance Science & Technology

摘　　要：新型低全球变暖潜能值的制冷剂R454B是一种绿色制冷剂,但由于其可燃性,存在一定的安全隐患,通过对可燃制冷剂的模拟泄漏来提升产品安全性具有重要意义。基于UL 60335-2-404^(th)中所规定的管道式空调制冷剂泄漏模拟实验及制冷剂传感器定位实验的准则和要求,针对北美市场主流产品管道式空调的结构特点,在水平安装方式下,对使用过程中的危险点进行制冷剂气体泄漏模拟实验,通过监测泄漏过程中房间制冷剂浓度的变化,选择较优的制冷剂传感器安装位置。实验结果表明,对于R454B制冷剂,制冷剂传感器应靠下安装;对于管道机水平安装方式,进行泄漏传感器安装位置优选;在测试过程中应尽可能多地进行泄漏点的布置,以排除异常突变点,保证产品的安全性。R454B,a new refrigerant with low global warming potential,is a green refrigerant,but because of its flammability,it also has certain safety risks.It is of great significance to improve the safety of combustible refrigerant by simulating leakage.Based on the criteria and requirements of refrigerant leakage simulation experiment and refrigerant sensor positioning experiment of AHU stipulated in UL 60335-2-404^(th).According to the structural characteristics of AHU,which are mainstream products in the North American market,for the horizontal installation,the simulation esperment of refrigerant gas leakage at dangerous points during use is carried out.Select the best refrigerant sensor installation position.The experimental results show that for R454B refrigerant,the refrigerant sensor should be installed lower;For the horizontal installation of AHU in this paper,the installation position of the leakage sensor is optimized;In the process of testing,as many leak points should be arranged to exclude abnormal mutation points to ensure the safety of the product.

关 键 词：管道式空调 制冷剂泄漏 安全性控制 

分 类 号：TM925.12[电气工程—电力电子与电力传动] TB612[一般工业技术—制冷工程]