一种应用在井下局部工作面的新型降温系统

A New Type of Cooling System Applied to the Underground Working Face

介绍了一种新型局部降温机在高温工作面的应用,重点是对更加适合井下局部工作面的新型局部降温机进行说明,并对该局部降温机进行热工计算,计算制冷机组的冷负荷及相关的性能参数。通过试验证明该套降温机能够较好地应用在局部工作面,相对于以前运用在局部环境的降温设备,采用液态CO_2作为冷却介质,并形成了一个可循环的系统,改进了换热器的结构,尽可能在提高降温效果的同时节约了成本。提出的新型局部降温机旨在解决局部高温工作面的高温问题,使这套降温设备能应用在高温环境的矿井中。

The application of a new type of local cooling machine in high temperature working face was introduced, that emphasizes on description of a new type of local cooling machine which is more suitable for underground local working face, and the thermal calculation of the local cooling machine was carried out to find out the cooling load of the refrigeration unit and its related performance parameters. Experiments show that this cooling machine can be better used in local working face. Being different from the previous cooling equipment used in local environment, liquid CO2 is used as cooling medium to form a circulating system in the cooling machine, which modifies the structure of heat exchanger, improves the cooling effect and saves the costs as much as possible. The new type of local cooling machine aims to solve the high temperature problem at local high temperature working face, so as to apply it in the mines with high temperature environment.