空压机余热回收二次换热装置的设计研究

随着能源紧张与环境污染等问题的出现，余热回收利用技术变得尤为重要。在余热回收技术领域中，喷油螺杆式空压机余热回收越来越受重视。余热回收装置作为空压机余热回收技术中较为重要的设备，对其进行设计研究很有必要。通过理论计算，集成了对应160kW喷油螺杆空压机的余热回收二次换热装置，该装置可实现油温自动控制，并有效降低板换结垢的风险，对其进行热回收特性实验研究，结果表明在一次侧进出口水温70℃／50℃、二次侧进出口水温45℃／60℃工况下，热回收能量为99．85kW，高于空压机额定功率的50％。为空压机余热回收系统设计提供参考依据，对系统施工安装起到了一定的促进作用。

Design of the Secondary Heat Exchange Device for Waste Heat Recovery of Air Compressor

The waste heat recycling technology is particularly important with the emergence of energy tension and environmental pollu- tion. The heat recovery of injection screw air compressor is more and more crucial in the waste heat recovery technology field, so it is neces- sary to research waste heat recovery device. Through the theoretical calculation, integrating the waste heat recovery of secondary heat exchange device on the injection screw air compressor with the corresponding power is 160kw. The device can realize the automatic control of oil tem- perature; meanwhile, it also can effectively reduce the risk of plate in scaling. Results from the experimental research on the heat recovery characteristics show that in the condition of import and export water temperature is 70~C/50~C of the primary side, or import and export water temperature is 45~C/60~Cof the secondary side, the heat recovery power is 99.85kW. It is higher than 50% of the air compressor power rating. This paper provides reference for air compressor heat recovery system design and also plays a certain role in promoting the system installation.