| 摘要: |
| 无电自驱式矿用救生舱在矿难发生后为井下被困的人员提供了必要的生存条件。针对现有救生舱的CO2降温除湿系统的蒸发器容易出现结霜的问题，提出了一种降温除湿系统的无霜改进设想，介绍了改进后系统的设备构成和工作流程，并详细分析了无霜改进的原理及其可行性；同时还针对系统的可行性进一步阐述了一种运用温度分级控制阀组的控制方法，分析了系统在变负荷工况下的多种控制调节方式。为矿用救生舱的深入研究提供了参考。 |
| 关键词: 矿难 救生舱 CO2降温除湿系统 无霜 分级控制 |
| DOI： |
| Received:September 21, 2012 |
| 基金项目: |
|
| The Frostless Improvement and Feasibility Analysis of Cooling and Dehumidifying System in Mine Rescue Chamber |
|
Yin Yue1, Du Kai1, Zhou Ronghui2, Sun Changjian1
|
| (1.School of Energy and Environment, Southeast University;2.Nanjing Jiuding refrigeration and air conditioning equipment Co., Ltd.TD) |
| Abstract: |
| Powerless self-driven mine rescue chamber supplies essential survival conditions for the people who are trapped during mine accidents. As the evaporator in the CO2 cooling and dehumidifying system of current rescue chamber has frosting problem, an idea of frostless improvement of the cooling and dehumidifying system is proposed and the equipment structure and working process of the developed system are introduced in this paper. Then, the principle and feasibility of the frostless improvement are analyzed in detail. Furthermore, a control method which uses temperature hierarchical control group valves is stated, and several regulative methods of the system under variable load conditions are analyzed. The results provide reference for further study of mine rescue chamber. |
| Key words: mine accident rescue chamber CO2 cooling and dehumidifying system frostless hierarchical control |
