CAJ | 학술논문

根据单螺杆压缩机的结构特点和工作过程特性，分析了单螺杆压缩机中啮合副的几何参数对压缩机性能的影响。计算了不同中心距系数和星轮螺杆直径比情况下压缩机的排气量，排气孔口位置和面积以及在排气孔口位置保持不变的情况下的流动损失情况。通过分析发现：排气量随星轮螺杆直径比的增大而增大，而随中心距系数的增大呈先增大后减小的趋势。排气开始位置不受星轮螺杆直径比变化的影响，只随中心距系数的增大而往排气侧延迟，排气孔口面积则随星轮螺杆直径比的增大而增大。在排气孔口位置不变的情况下，随星轮螺杆直径比增大，排气过程的流动阻力损失线性增加。该分析结果为压缩机改型设计提供了依据。
근거단라간압축궤적결구특점화공작과정특성，분석료단라간압축궤중교합부적궤하삼수대압축궤성능적영향。계산료불동중심거계수화성륜라간직경비정황하압축궤적배기량，배기공구위치화면적이급재배기공구위치보지불변적정황하적류동손실정황。통과분석발현：배기량수성륜라간직경비적증대이증대，이수중심거계수적증대정선증대후감소적추세。배기개시위치불수성륜라간직경비변화적영향，지수중심거계수적증대이왕배기측연지，배기공구면적칙수성륜라간직경비적증대이증대。재배기공구위치불변적정황하，수성륜라간직경비증대，배기과정적류동조력손실선성증가。해분석결과위압축궤개형설계제공료의거。
Based on the structure features and operating characteristics of single screw compressor,the affect of geometry param-eters on the performance of single screw compressor are analyzed.The displacement and the position and area of the exhaust port are calculated under different center distance coefficient and different diameter ratio between the star wheel and the screw.And the flow loss in the exhaust process is also analyzed in the case of the exhaust port position unchanged.Through the analysis we can see that:the displacement will increase with the increase of the diameter ratio,and will first increases and then decreases with the increase of the center distance coefficient.And the exhaust starting position is not affected by the diameter ratio,but delay to the exhaust side along with the increase of the center distance coefficient.The area of the exhaust port will increase with the in-crease of the diameter ratio.The exhaust flow resistance losses in the exhaust process will linear increase with the increase of the diameter ratio when the exhaust port position stays the same.The analysis results provide a basis for compressor retrofit design.