|本期目录/Table of Contents|

[1]蒋漳河,陈志明.可燃制冷剂空调用开关元件点燃危险及防爆试验分析[J].中国安全生产科学技术,2019,15(9):76-81.[doi:10.11731/j.issn.1673-193x.2019.09.012]
　JIANG Zhanghe,CHEN Zhiming.Analysis on ignition risk and explosionproof test of switching elements for air conditioner with flammable refrigerant[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(9):76-81.[doi:10.11731/j.issn.1673-193x.2019.09.012]
点击复制

可燃制冷剂空调用开关元件点燃危险及防爆试验分析
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
15
期数:
2019年9期
页码:
76-81
栏目:
职业安全卫生管理与技术
出版日期:
2019-09-30

文章信息/Info

Title:
Analysis on ignition risk and explosionproof test of switching elements for air conditioner with flammable refrigerant
文章编号:
1673-193X(2019)-09-0076-06
作者:
蒋漳河1; 2; 陈志明1; 2
（1.广州特种机电设备检测研究院，广东 广州 510760；
2.国家防爆设备质量监督检验中心（广东），广东 广州 510760）
Author(s):
JIANG Zhanghe1; 2;  CHEN Zhiming1; 2
(1.Guangzhou Academy of Special Mechanical and Electrical Equipment Inspection & Testing,Guangzhou Guangdong 510760,China;
2.China National Quality Supervision and Testing Center of ExplosionProof Equipment (Guangdong),Guangzhou Guangdong 510760,China)
关键词:
可燃制冷剂; 开关元件; 点燃危险; “nC”型元件; 防爆试验
Keywords:
flammable refrigerant;  switching elements;  ignition risk;  “nC” components;  explosionproof test
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2019.09.012
文献标志码:
A
摘要:
随着全球范围对环境问题的日益重视，R290，R32等新型制冷剂因优良的环保性能和节能效果被广泛应用于空调行业，但其属于IIA级爆炸性气体，为了进一步分析其运行过程中的防爆安全性能。通过文献数据和测试分析，可燃制冷剂空调电气元件的点燃源主要来自其工作过程中产生的电气火花。其中空调开关元件最容易产生电火花、电弧，且通过试验验证这些火花或电弧能点爆（6.5±0.5）%乙烯/空气混合物。综合IEC 60335-2-40，GB 4706.32标准要求和空调开关元件的结构特征，分析确定其应符合“nC”型防爆技术要求，并能通过“nC”型爆炸试验。针对开关元件结构尺寸小、存在爆炸试验中爆炸性混合气体多次置换和负载通、断电操作的难点问题，提出一套合理可行的爆炸试验实施方案，并通过测试应用得到验证。
Abstract:
With the increasing attention to the environmental issues on global scale,the new refrigerants such as R290 and R32 are widely used in the air conditioning industry due to their excellent environmental performance and energy saving effect,but they are IIA grade explosive gases.In order to further analyse the explosion-proof safety performance during the flammable refrigerant air conditioner operation,according to the literature data and test analysis,it showed that the ignition source of electrical elements in the air conditioner with the flammable refrigerant was mainly the electric sparks generated in the process of operation.The switching elements of air conditioner were most likely to generate the sparks and arcs,and through the tests,it was verified that these sparks or arcs could ignite the (6.5±0.5) % ethylene/air mixture.According to the requirements of IEC 60335-2-40 and GB 4706.32 and the structural characteristics of switching elements in the air conditioner,it was determined that they should meet the technical requirements of “nC” type explosionproof and pass the explosion type test of “nC” type.Aiming at the difficult problems of the small structure size of switching elements,multiple displacement of explosive gas mixture,and load power on and power off operation in the explosion test,a reasonable and feasible implementation scheme of explosion test was put forward and verified by the testing application.

参考文献/References:

［1］CHOUDHARI C S,SAPALI S N.Performance investigation of natural refrigerant R290 as a substitute to R22 in refrigeration systems ［J］.Energy Procedia,2017（109）:346-352.
［2］ZHANG W,YANG Z,ZHANG X,et al.Experimental research on the explosion characteristics in the indoor and outdoor units of a split air conditioner using the R290 refrigerant［J］.International Journal of Refrigeration,2016,67（7）:408-417.
［3］占淑琴.可燃性制冷剂R32空调安全设计研究［J］.家电科技,2017(6):44-47.ZHAN Shuqin.Safety design research for air conditioner with flammable refrigerant of R32［J］.Journal of Appliance Science & Technology,2017(6):44-47.
［4］张网，任常兴，张欣.R290作为替代制冷剂的火灾危险性的研究进展［J］.工业安全与环保,2012,38(10):44-47.ZHANG Wang,REN Changxing,ZHANG Xin.Development of fire risk study by using R290 as alternative refrigerant ［J］.Industrial Safety and Environmental Protection,2012,38(10):44-47.
［5］陈信勇，于丽.可燃性冷媒空调点火源的安全要求［J］.家电科技,2014(9):44-45.CHEN Xinyong,YU Li.New safety requirement for ignition source of flammable air conditioner［J］.Journal of Appliance Science & Technology,2014(9):44-45.
［6］全国防爆电气设备标准化技术委员会.爆炸性环境 第11部分：气体和蒸气物质特性分类 试验方法和数据:GB/T 3836.11—2017［S］.北京：中国标准出版社，2018.
［7］TANG W,HE G,CAI D,et al.The experimental investigation of refrigerant distribution and leaking characteristics of R290 in split type household air conditioner ［J］.Applied Thermal Engineering,2017,115(3):72-80.
［8］TANG W,HE G,ZHOU S,et al.The performance and risk assessment of R290 in a 13 kW air source heat pump［J］.Applied Thermal Engineering,2018,114（5）:392-402.
［9］TANG W,HE G,ZHOU S,et al.The experimental study of R290 mass distribution and indoor leakage of 2 HP and 3 HP split type household air conditioner ［J］.International Journal of Refrigeration,2019,100(4):246-254.
［10］LI T.Indoor leakage test for safety of R-290 split type room air conditioner ［J］.International Journal of Refrigeration,2014,40(4):380-389.
［11］JIA L,JIN W,ZHANG Y.Analysis of indoor environment safety with R32 leaking from a running air conditioner ［J］.Procedia Engineering,2015(121):1605-1612.
［12］田贯三，杨昭，刘万福，等.可燃制冷剂泄漏及爆炸危害评价的研究［J］.安全与环境学报，2001，1（6）:39-43.TIAN Guansan,YANG Zhao,LIU Wanfu,et al.An analysis and assessment on the explosive hazards of leakage flammable refrigerants ［J］.Journal of Safety and Environment,2001,1(6):39-43.
［13］田贯三，高云峰，宋成璋.可燃制冷剂爆炸抑制模拟实验研究［J］.山东建筑大学学报,2016,31(6):564-570.TIAN Guansan,GAO Yunfeng,SONG Chengzhang.Experiment study on inhibition of flammable refrigerant explosion ［J］.Journal of ShangDong JianZhu University,2016,31(6):564-570.
［14］ZHANG W,YANG Z,LI J,et al.Research on the flammability hazards of an air conditioner using refrigerant R-290［J］.International Journal of Refrigeration,2013,36(5):1483-1494.
［15］全国防爆电气设备标准化技术委员会.爆炸性环境 第8部分:由n型保护的设备:GB 3836.8-2014［S］.北京：中国标准出版社，2015.
［16］IEC.Household and similar electrical appliances-Safety-Part 2-40:Particular requirements for electrical heat pumps,air-conditioners and dehumidifiers:IEC 60335-2-40:2018［S］.Geneva:IEC,2018.
［17］全国家用电器标准化技术委员会.家用和类似用途电器的安全 热泵、空调器和除湿机的特殊要求:GB 4706.32-2012［S］.北京：中国标准出版社，2013.
［18］刘振.可燃性制冷剂空调安全要求分析［J］.日用电器,2017(12):30-33.LIU Zhen.Analysis of safety requirements of air conditioners with flammable refrigerants［J］.Electrical Appliances,2017(12):30-33.(责任编辑：李群)

相似文献/References:

备注/Memo

备注/Memo:
收稿日期： 2019-04-03
* 基金项目： 国家重点研发计划项目（2018YFC0808904）
作者简介： 蒋漳河，硕士，高级工程师，主要研究方向为工业防爆设备检测检验认证及防爆安全技术。
更新日期/Last Update: 2019-10-15