| 唐逸飞， 赵军.带经济器的空气源热泵系统研究综述[J].轻工机械,2018,36(4):93-99 |
| 带经济器的空气源热泵系统研究综述 |
| Study on Air Source Heat Pump System with Economizer |
| |
| DOI：10.3969/j.issn.1005 2895.2018.04.020 |
| 中文关键词: 空气源热泵 强化补气（EVI）技术 经济器 闪发器 微元控制体分析法 控制参数法 |
| 英文关键词:air source heat pump system EVI (Enhanced Vapor Injection) economizer flash tank micro control element analysis method control
parameter method |
| 基金项目:上海市科委项目（13dz1201802） |
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| 摘要点击次数: 1174 |
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| 中文摘要: |
| 为了解决热泵系统无法在低温工况下工作的问题，国内外学者提出了在空气源热泵系统中增加一个经济器，引入强化补气(EVI)技术。采用闪发
器前节流的热泵系统可以实现更佳的制热效果与可靠运行；涡旋压缩机结构简单且容积较小，广泛应用于小型户式空气源热泵机组的研究；采用改变环境温度的
实验方法研究系统的中间补气量，发现不同环境温度下，均存在一个最优补气量且数值均不同；采取控制参数法、划分系统切换区域研究经济器的控制策略；采
用微元控制体分析法等建立数学模型进行系统仿真，研究仿真误差因素；将经济器应用到中高温工况下的热泵系统与单级吸收式系统，其应用效果都比较良好。
对经济器的控制策略将是研究重点，除湿工况下经济器的应用将作为今后研究工作方向之一。 |
| 英文摘要: |
| In order to solve the problem that heat pump can′t work in the low temperature condition, scholars at home and abroad proposed to add an
Economizer to air source heat pump system, and introduced Enhanced Vapor Injection (EVI). Adopting the heat pump with the throttle before flash tank could achieve better heat
production and reliable operation. The scroll compress had a simple structure and small volume, which was widely used in the research of small scale air source heat pump unit. The
experimental method of changing the ambient temperature was used to study intermediate air supply in the system. It was found that there existed an optimal air supplement and the values
differed in different ambient temperatures. The control strategy of economizer was studied by using the control parameter method and dividing the switching area of the system. The micro
control element analysis method and so on were used to establish the mathematical model for studying system simulation and error factors. The economizer was introduced into the heat
pump system under medium and high temperature conditions and single stage absorption refrigeration system, and its application effects were all good. The control strategy of the
economizer would be the research focus, and the application of the economizer under the dehumidifying condition would be one of the future research directions. |
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