15T2半无油活塞式空气压缩机设计和开发

【作者】 徐军；

【导师】 王华坤； 徐秋林；

【作者基本信息】 南京理工大学 ， 机械工程， 2010， 硕士

【摘要】 本文是以南京英格索兰压缩机有限公司开发的一种活塞式压缩机作为研究对象,此开发的产品是一种新型号半无油活塞式压缩机。为了保证半无油活塞式压缩机最终排出的压缩气体无油,在结构上进行了创新,采用中体和十字头结构,在十字头上安装刮油环,同时给中体通入一定压力的空气,来控制润滑油不串入压缩气腔。活塞式压缩机热力计算得到性价比最高的三级活塞式压缩机结构,同时进行气体损失分析,计算排气量和压缩机的轴功率和电动机功率。活塞式压缩机的动力计算得到压缩机的飞轮距,同时准确地分析压缩主机内部运动零件的受力情况,并在曲轴上增加适当重量的平衡块,平衡内部零件受力情况,基本消除压缩机机组的振动。使用有限元分析方法对连杆和活塞进行强度校核。在工程试验阶段,根据国家压缩机标准的要求,对压缩机主机的排气量、排气温度、耗油量、振动和噪声等参数进行测量,并做了疲劳性试验。试验数据显示满足国家压缩机标准要求和设计输入要求。更多还原

【Abstract】 The paper bases on a kind exploration of piston style compressor for Nanjing Ingersoll Compressor Company. The product is new type non-lubrication-oil piston style compressor.In order to ensure non-lubrication-oil in final compressed air, there are two innovations for structure of non-lubrication-oil piston style compressor. There being the structure that has two key parts, guide and crosshead, in new machine. And oil scraper rings on the crosshead keep lubrication oil back to frame of compressor. The pressured air enters into guide in order to control lubrication oil not to penetrate cavity of compressed air. Through thermal calculation of piston compressor, the best cost-performance ratio machine is three-stage structure of compressor. In addition, Gas loss in compression process is analyzed and air displacement is calculated. And shaft power and motor power of compressor are counted out by way of thermal calculation. Moment of flywheel is calculated by dynamic calculation. Vibration of compressor is almost eliminated by these methods. Forces of movement parts of inside bare are accurately analyzed and calculated. And appropriate weight of balance block appends to crank surface. Intensity check of piston and connecting-rod are calculated by FEA.During engineering test, several key parameters of non-lubrication-oil piston compressor, air displacement and exhaust temperature and lubrication-oil consumption and vibration and noise, are measured according to regulation of national standard of compressor. And fatigue test of new product is measured under requirement of national standard. All testing data tally with requirements of national standard and design input.更多还原