| 摘要: |
| HCFCs和HFCs类制冷剂存在ODP和GWP值比较高的缺点。R290具有良好的环保性能，但是其易燃易爆的特点是其使用的最大阻碍。为确定室内机发生泄漏所形成的燃爆范围，开展实体实验，研究了在不同房间面积、不同泄漏位置，不同泄漏速度条件下，R290泄漏到室内浓度分布情况。结果表明，室内机发生泄漏时，仅在其附近可能形成燃爆区域。燃爆范围仅存在于泄漏过程中，一旦泄漏停止后，燃爆范围会迅速消失。 |
| 关键词: 制冷剂 泄漏 分体式空调 连接头 蒸发器 R290 |
| DOI： |
| 投稿时间：2012-12-27
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| 基金项目: |
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| Leakage Research of Split-type Air-conditioner using R290 as Refrigerant |
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| Abstract: |
| The ozone depletion potential (ODP) and global warming potential (GWP) of HCFCs and HFCs are higher than hydrocarbons (HCs). R290 is perfect in environmental protection and energy saving performance. In order to determine the combustible region of leaked R290 from indoor unit of air-conditioner, a test room was established in this study. The distribution of R290 concentration was studied after it leaked in the room with different room area, installation height of indoor unit, location of the leakage and different leakage rate. The results showed that combustible region is limited only in the region very close to the indoor unit, and combustible region only exists during the leakage process, which will quickly disappear once the leakage stops. |
| Key words: refrigerant leak split-type air-conditioner connector evaporator R290 |
