家电科技 ›› 2021, Vol. 0 ›› Issue (6): 56-59.doi: 10.19784/j.cnki.issn1672-0172.2021.06.008

• 论文 • 上一篇    下一篇

中间补气空气源热泵热风机节流阀控制方法的实验研究

侯庆林, 陈超, 李明洋, 王振宝, 刘宏举   

  1. 数字多媒体技术国家重点实验室 山东青岛 266100
  • 出版日期:2021-12-01 发布日期:2022-01-05
  • 作者简介:侯庆林,硕士。研究方向:空调研发。地址:山东省青岛市崂山区海信研究发展中心。E-mail:houqinglin@hisense.com。

Experimental research on throttle valve control method of enhanced vapor injection heat pump air heater

HOU Qinglin, CHEN Chao, LI Mingyang, WANG Zhenbao, LIU Hongju   

  1. State Key Laboratory of Digital Multimedia Technology Qingdao 266100
  • Online:2021-12-01 Published:2022-01-05

摘要: 中间补气技术在改善空气源热泵机组的低温制热能力不足、低温制热压缩机排气温度过高等方面具有良好的作用,针对闪发器中间补气热泵热风机系统的电子膨胀阀节流控制方法进行了实验研究。研究表明:闪发器前的电子膨胀阀可采用排气过热度为目标参数进行控制,闪发器后的电子膨胀阀可采用吸气过热度为目标参数进行控制,并通过实验方法获得了本实验系统在给定实验工况下的最优排气过热度控制值43℃和最优吸气过热度控制值0℃。

关键词: 空气源热泵, 低温制热, 中间补气, 过热度

Abstract: Enhanced vapor injection (EVI) method can effectively improve the heat capacity and high discharge temperature of air source heat pump in low ambient temperature. The control method of electronic expansion valve (EEV) in flash tank EVI heat pump air heater system is experimentally studied. The result shows the EEV before the flash tank can preferably use discharge superheat as its control target parameter, and the EEV after the flash tank can use suction superheat as its control target parameter. In addition, for the very experiment system and the very ambient temperature, the best discharge control value 43℃ and the best suction control value 0℃ is obtained by this experimental study.

Key words: Air source heat pump, Low temperature heating, Enhanced vapor injection, Superheat

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