多联式空调(热泵)机组除霜试验研究  

Experiment on defrosting of multi-connected air-condition(heat pump)unit

作　　者：侯丽峰 袁晓军 凌拥军 蒋建军 涂虬 赵虹宇 Hou Lifeng;Yuan Xiaojun;Ling Yongjun;Jiang Jianjun;Tu Qiu;Zhao Hongyu(Zhejiang Zhongguang Electric Appliance Group Co.,Ltd.)

机构地区：[1]浙江中广电器集团股份有限公司

出　　处：《制冷与空调》2025年第2期8-10,15,共4页Refrigeration and Air-Conditioning

摘　　要：为解决多联机除霜时室内温度下降问题,提出利用多联机待机室内机为室外机除霜的方案,并进行试验分析。结果表明:采用该除霜方案时,除霜结束后工作房间的室内机换热器盘管温度较常规除霜方案高20℃左右,工作房间内温度较常规除霜方案高3℃左右,除霜过程中室内机因热胀冷缩产生的噪声等问题得到改善。该方案为多联机除霜提供了新的思路。To solve the problem of indoor temperature decrease during multi-connected air-condition(heat pump)unit defrosting,a scheme of using the standby indoor units for defrosting of outdoor units in multi-connected air-condition(heat pump)unit is proposed,and the experimental analysis is conducted.The results show that when using this defrosting scheme,the coil temperature of the indoor unit heat exchanger in the working room is about 20℃ higher than that of the conventional defrosting scheme,and the temperature in the working room is about 3℃higher than that of the conventional defrosting scheme when the defrosting finishes.This scheme solves the problem of noise caused by thermal expansion and contraction of the indoor unit during the defrosting process,and provides a new idea for multi-connected air-condition(heat pump)unit defrosting.

关 键 词：多联式空调(热泵)机组 除霜 排气温度 电子膨胀阀 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]