开门频率对餐厅用室内装配式冷库温度及能耗影响  

The Effect of Door Opening Frequency on the Temperature and Energy Consumption of Indoor Assembly Cold Storage for Restaurant

作　　者：张川 司春强 Zhang Chuan;Si Chunqiang(Huashang International Engineering Co.,Ltd.,Beijing,100069)

机构地区：[1]华商国际工程有限公司

出　　处：《冷藏技术》2019年第3期28-33,共6页Journal of Refrigeration Technology

摘　　要：室内装配式冷库具有建造工期短、移动增容方便、性能稳定等特点,被广泛应用于商业食品流通领域。本文基于餐厅实际使用特点搭建了一套装配式冷库性能测试实验装置以及自动开关门装置,研究了不同开关门频率对餐厅用室内装配式冷库温度及能耗的影响。结果表明,在冷风机规格参数相当的情况下,相对于定频机组来说选用制冷量稍大的变频机组且采用热气化霜技术更有利于控制库温的波动以及较好的维持负载包的温度;在本实验小型装配式冷库开门频率设定工况下,每小时开关门次数每减少1次,可使系统的整体能耗降低20%左右;热气化霜技术虽然会增加机组运行时间,但是会节省大量化霜电能,总体能耗明显减少。Indoor assembly cold storage is widely used in the field of commercial food circulation due to its characteristics of short construction period, convenient mobile capacity increase and stable performance. In this paper, an experimental system and an automatic switch door device are established to test the performance of assembly cold storage based on the actual characteristics of restaurants, and studied the effects of different switch door frequencies on the temperature and energy consumption of the indoor assembled cold storage in the restaurant. The results show that in the case of the same specifications of the cooling fan, compared with the fixed frequency unit, using the frequency conversion unit with a slightly larger cooling capacity and the hot gas defrosting technology are more conducive to controlling the storage temperature and maintaining the temperature of the load package. Under the setting of door opening frequency, the number of switching times reduced 1 time per hour, the overall energy consumption can be reduced by about 20%. The hot gas defrosting technology will increase the unit running time, but it will save a lot of defrosting power, and the overall energy consumption will be significantly reduced.

关 键 词：装配式冷库 开门频率 温度 能耗 

分 类 号：TB6[一般工业技术—制冷工程]