毕业设计论文单螺杆空气压缩机的设计摘要空气压缩机具有结构简单、工作可靠和操作方便等一系列独特的优点，因此在空气动力学、制冷空调及各种工艺流程中获得了广泛的应用。可编程控制器（PLC）将传统的继电器控制技术、计算机控制技术和通信技术融为一体，专为工业控制而设计。本文介绍了空气压缩机PLC控制系统组成、保护功能、控制原理、系统通信、系统信号的采集，以及控制系统软件的设计思想。单螺杆压缩机亦称蜗杆压缩机，采用高效带轮传动，带动主机转动进行空气压缩，通过喷油对主机内的压缩空气进行冷却，主机排出的空气和油混合气体经过粗、精两道分离，将压缩空气中的油分离出来，最后得到洁净的压缩空气。冷却器用于冷却压缩空气和油。因其在结构、力学及可靠性等方面的独特优势，广泛应用于船舶、机车、能源、国防、石油、化工、机械、食品、轻纺等行业，具有优良的可靠性能，振动小、噪声低、操作方便、易损件少、运行效率高是其最大的优点。关键词:可编程控制器（PLC）单螺杆空气压缩机控制AbstractAircompressorhasasimplestructure,reliableandeasytooperateandaseriesofuniqueadvantages,soaerodynamics,refrigerationandairconditioningandavarietyofprocesstoobtainawiderangeofapplications.ProgrammableLogicController(PLC)tothetraditionalrelaycontroltechnology,computercontroltechnologyandcommunicationtechnologyintegration,specificallydesignedforindustrialcontrol.ThisarticledescribesthecompositionoftheaircompressorPLCcontrolsystem,protection,controltheory,systemcommunication,systemsignalacquisitionandcontrolsystemsoftwaredesign.Single-screwcompressorsalsoknownaswormcompressor,usinghighpulleydrive,driverotationtohosttheaircompressedwithinthehostbyinjectionofcompressedairforcooling,hosttheexhaustairandoilmixturethroughthecoarse,fine2separation,thecompressedairoilseparation,andfinallygetcleanair.Coolerforcoolingcompressedairandoil.Becauseoftheirstructural,mechanicalandreliabilityaspectsoftheuniqueadvantagesofwidelyusedinships,locomotives,energy,defense,petroleum,chemicals,machinery,food,textileandotherindustries,withhighreliability,littlevibration,lownoiseconvenientoperation,thevulnerabilityofsmall,highoperatingefficiencyofitsgreateststrengths.Keywords:single-screwaircompressors,programmablelogiccontrollers,control目录TOC\o"1-3"\h\uHYPERLINK\l_Toc6048第1章绪论1HYPERLINK\l_Toc59591.1单螺杆压缩机的历史及现状PAGEREF_Toc59591HYPERLINK\l_Toc74351.2单螺杆空气压缩机在国内外概况与优缺点PAGEREF_Toc74351HYPERLINK\l_Toc119121.2.1单螺杆空气压缩机在国内外的概况PAGEREF_Toc119121HYPERLINK\l_Toc161001.2.2单螺杆空气压缩机的优点与缺点PAGEREF_Toc161002HYPERLINK\l_T