R290冷媒2HP空调器制热量提高的试验研究

家电科技 ›› 2018, Vol. 0 ›› Issue (1): 69-73.

R290冷媒2HP空调器制热量提高的试验研究

冯利伟, 廖四清, 李傲寒, 王小龙

广东美芝制冷设备有限公司广东顺德 528333

出版日期:2018-01-01 发布日期:2019-07-12
作者简介:冯利伟,fenglw@chinagmcc.com

Experimental research on increasing heat capacity of R290 air conditioner

FENG Liwei, LIAO Siqing, LI Aohan, WANG Xiaolong

Guangdong Meizhi Refrigeration Equipment Co.,Ltd. Shunde 528333

Online:2018-01-01 Published:2019-07-12

摘要/Abstract

摘要： 本文通过对R290冷媒热力性质分析,得出R290冷暖空调室外换热器设计时应减小压降。通过理论分析,得出在流程相同时,φ5管换热器压降是φ7管换热器的4倍,应当增加流路数来降低压降。并用EVAP-COND流程模拟软件验证并优化流程数,最后在R290冷媒充注量限定值范围内,在2HP冷暖系统上实现热冷比1.1倍。

关键词: EVAP-COND, 换热器流程, 流程布置, R290, Φ5换热器, 热冷比

Abstract: Through the thermodynamic analysis of R290 refrigerant, conclude that the pressure drop should be decreased in the design of R290 outdoor heat exchanger. Through theoretical analysis, obtained in the same process, the φ5 heat exchanger pressure drop is the φ7 heat exchanger 4 times, should be increased the numbers of flow path to reduce the pressure drop. EVAP-COND process simulation software is used to verify and optimize the numbers of flow path. Finally, the experimental results show that the ratio of heat capacity to cold capacity is achieved 1.1 times in the 2HP cooling and heating system within the limited range of R290 refrigerant charge.

Key words: EVAP-COND, Flow path of heat exchanger, Flow path arrangement, R290, Φ5 tubes heat exchanger, Ratio of heat capacity to cold capacity

冯利伟, 廖四清, 李傲寒, 王小龙. R290冷媒2HP空调器制热量提高的试验研究[J]. 家电科技, 2018, 0(1): 69-73.

FENG Liwei, LIAO Siqing, LI Aohan, WANG Xiaolong. Experimental research on increasing heat capacity of R290 air conditioner[J]. Journal of Appliance Science & Technology, 2018, 0(1): 69-73.

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