Single-crystal silicon is key raw material in photovoltaic industry. In its manufacture, silicon monoxide dust, a byproduct, is collected under vacuum environment. To clean the dust collector, air is recharged into the collector, reacting with the dust and causing very high temperature. Collector components may be damaged. It also takes several hours to cool down. In this paper, a cooling system based on ejection refrigeration cycle is proposed, which collects the reaction heat and simultaneously controls the collector temperature around 100°C. Then, it is driven by stored waste reaction heat and cools down the dust to a lower temperature. The designed cooling system, employing a 9.7972 m² fin-tube heat exchanger, can simultaneously meet the cooling load of four dust collectors with 330L/S capacity. By a thermodynamic model established in this work, performance analysis is carried out. Generating temperature around 73°C and evaporating temperature around 6°C are recommended for system operation. Results also show the cooling system is able to provide 3270 kJ cooling energy that is needed by the collector, for fast cooling down the dust no longer than 620 s. It is about 92% shorter than the time of current collector, indicating the cooling system is effective and feasible.

单晶硅是光伏产业的关键原材料。在其制造过程中，副产品一氧化硅粉尘是在真空环境下收集的。为了清洁集尘器，空气重新进入集尘器，与灰尘发生反应并产生非常高的温度。收集器组件可能已损坏。冷却也需要几个小时。本文提出了一种基于喷射制冷循环的冷却系统，它收集反应热并同时控制集热器温度在100°C左右。然后，它由储存的废反应热驱动，将粉尘冷却到较低的温度。设计的冷却系统，采用 9.7972 m ²翅片管式换热器，可同时满足4台330L/S除尘器的冷负荷。通过本文建立的热力学模型，进行性能分析。建议系统运行时产生约 73°C 的温度和约 6°C 的蒸发温度。结果还表明，冷却系统能够提供除尘器所需的 3270 kJ 冷却能量，可在不超过 620 秒的时间内快速冷却灰尘。比集电器的时间缩短约92%，说明冷却系统是有效可行的。