往復(fù)壓縮機(jī)壓開吸氣閥氣量調(diào)節(jié)的理論與實(shí)驗(yàn)研究.pdf

1、浙江大學(xué)碩士學(xué)位論文往復(fù)壓縮機(jī)壓開吸氣閥氣量調(diào)節(jié)的理論與實(shí)驗(yàn)研究姓名：孫學(xué)亮申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化工過(guò)程機(jī)械指導(dǎo)教師：吳榮仁洪偉榮20060201ABSTRACTUnloadinginletvalvesatpanialstrokeisonemearlsofcapacityregulatingforreciprocatingcompressor，anditpossesseseconomic，full—rangeandeasyusing

2、characterWithinletvalvesunloadedbysomedevice，gasflowsbackintosuctioncavitybeforebeingcompressed，whichcallsavetheenergyChangingthedurationofunloadinginletvalvesconducestovaryingcapacitytheoreticallyintherangeofO—100％Compr

3、esscirculationofanideal—gasreciprocatingcompressorwithunloadedinletvalveswasanalyzedandaformulawasdeducedtocalculatecapacityNumericalsimulationofunloadedvalvedynamicsshowsinfluenceoftheunloadingstructure，andsomeadviceWas

4、givenfordesignofunloadingsystemExperimentoncapacitycontrolsystemwithrotationalhydraulicdistributorrepresentstherealregulationeffectThroughthisresearchtask，thefollowingtopicscanbeobtained：1Combinedwiththesimplifiedthermod

5、ynamicscirculationofcompressor，thetheoreticalcalculationofcapacityandindicatedpowerhasbeendeduced，andtheregulationprinciplewasrevealed2Differentialequationsofgasflowandvalvemotionwereestablished，andcomputeraidedanalysisw

6、ithvariedunloadingtimewascarriedoutMeansteducetheimpactbetweenvalveplateandvalveseatweresuggested3Asimplecapacityregulationsystemwit】hrotationalhydraulicdistributorwasintroduced，andthetheoryofrotatoranddistributorcontrol

7、bymicroprocessorwasexplainedResultoftheoreticalexperimentshowsthattheunloadingtimeCanbecontrolled4Experimentofthecontrolsystemonarealreciprocatingcompressorhasbeenaccomplished，Theresultsindicate：Withthedurationoftheunloa