| 摘要: |
| 冷冻室蒸发器采用多层换热片的复合立体结构,在S型制冷盘管壁外侧固定套装翅片,增加冷冻室顶部和低部两个高温区制冷量.将冷冻室按1:1划分出变温室,通过其中温度传感器控制双稳态电磁阀通断实现制冷剂回路切换,将变温室按冷冻、软冷冻、冷藏使用,也可关闭.通过横、竖盘管混排结构的丝管式冷凝器设计,借助制冷系统压缩机、冷凝器、蒸发器负荷匹配及其与毛细管制冷剂流量匹配,通过防凝露管走向及位置设计、蒸发器管道位置及走向布置和回气换热器设计,研制的BCD-186CHS直冷电冰箱最大负荷日耗电0.39度,在变温室为节能状态时耗电在0.35度以下,最低达0.31度. |
| 关键词: 热工学 优化设计 理论分析 直冷电冰箱 制冷系统 |
| DOI： |
| 修订日期：2004-05-17
|
| 基金项目:河南省科技攻关项目 |
|
| Research on Optimization Design of Refrigeration System for Direct Cooling Refrigerator |
|
| () |
| Abstract: |
| Composite and stereoscopic structure with laminated exchanger flake was used on evaporator of freezing chamber.Wing-flakes were fixed outside the refrigerant pipe coil with a S type to increase the refrigeration capacity of the top part and the bottom part of freezing chamber. Freezing chamber was divided into variable temperature areas according to 1:1 proportion.A temperature sensor controls On-Off of an double steady states electro-magnetic valve so that cut-over of refrigerant circuit can be completed. Variable temperature areas might be used as freezing chamber, lower-degree freezing chamber, or cold storage chamber and also could be shut off. By the optimizing design of the condenser structure, direction and position of anti-condensation pipe and evaporator, circling-gas exchanger and by matching the load of compressor, condenser ,and evaporator, a direct cooling refrigerator, BCD-186CHS,was recently developed. It consumes 0.39 kWh per day under the maximum load, and less than 0.35kWh even 0.31 kWh per day when the variable temperature chamber is operating under economy condition. |
| Key words: Pyrology,optimization design,theoretical analysis,direct-cooling refrigerator,refrigeration system |
