低温条件下压缩机油位控制的实验研究

摘要

It's very important to control the lubricant position in direct current inverter compressor in order to ensure successful start-up and normal running under low ambient temperature. The results of eontrast experiment was showed. It' s favorable to keep lubricant position upon the safe position in starting stage that the oil-return step duration was belonged and oil-return cycle and defrosting cycle were added. It' s also necessary that the pulses must be larger than 350 pls. ,if only one indoor unit need to open in the starting stage.%在低温条件下,为了保证直流变频多练空调的正常启动和运行,压缩机油池内的油位控制是非常重要的.压缩机启动控制对比实验研究结果表明,在启动阶段,延长回油平台时长以及增加回油循环和除霜循环有利于油位保持在安全油位之上.单台室内机开机启动时,相应的电子膨胀阀开度必须在350步以上,才能确保机组正常启动成功及油位安全.