分流不分流进样口介绍.ppt

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1、分流不分流进样口Slide#1第三讲Slide#21、分流不分流进样口的结构？2、样品在进样口中发生了怎样的变化？3、载气在进样口中的流路和变化？4、进样口中备件的作用及对样品分离的影响？5、进样口压力未就绪的解决办法？Slide#3Slide#4分流/不分流-元件识别隔垫衬管衬圈密封垫色谱柱5/4/00分流/不分流进样口分流/不分流进样口是毛细管GC最常用的进样口，它既可用作分流进样，也可用作不分流进样。分流/不分流进样口与填充柱进样有明显的不同，一是前者有分流气出口及其控制装置，二是除了进样口前有一个控制阀外，在分流气路上还有一个柱前压调节阀，三是二者使用的衬管结构

2、不同。Slide#5Slide#6Slide#7Slide#8Slide#96850/90分流动画-默认条件流量传感器比例阀1压力传感器隔垫吹扫调节器分流阀打开总流量控制回路分流流量出口GOLDSEAL输入压力比例阀280PSI0ML/MIN分流出口捕集管0PSI柱前压控制Slide#106850/90SplitAnimation-TotalFlowSetting分流流量出口205ML/MINGOLDSEAL80PSI主要的流动路径较少的流动路径205ML/MIN分流出口捕集管0PSI输入压力总流量控制回路柱前压控制压力传感器隔垫吹扫调节器流量传感器比例阀1比例阀2分流

3、阀打开Slide#116850/90SplitAnimation-InletPressureSettingFLOWSENSORPROPORTIONALVALVE1PRESSURESENSORSEPTUMPURGEREGULATORFIXED@3ML/MINPURGEVALVEOPENTOTALFLOWCONTROLLOOPGOLDSEALINPUTPRESSUREPROPORTIONALVALVE280PSIPRIMARYFLOWPATHREDUCEDFLOWPATH205ML/MINSPLITVENTTRAP10PSISPLITVENT200ML/MIN柱流量2ML/

4、MIN压缩载气BACKPRESSURECONTROLLOOP隔垫吹扫流量3ML/MINSlide#126850/90Split准备进样FLOWSENSORPROPORTIONALVALVE1PRESSURESENSOR隔垫吹扫流量3ML/MINPURGEVALVEOPENTOTALFLOWCONTROLLOOPINPUTPRESSUREPROPORTIONALVALVE280PSI205ML/MINSPLITVENTTRAP10PSISPLITVENT200ML/MIN柱流量2ML/MINBACKPRESSURECONTROLLOOP分流比-100:1形式:分流温度25

5、0250压力10.010.0分流比100分流流量200总流量205.0205.0节气器关Slide#136850/90SplitInsertSyringeAnimationFLOWSENSORPROPORTIONALVALVE1PRESSURESENSORSEPTUMPURGEREGULATORFIXED@3ML/MINPURGEVALVEOPENTOTALFLOWCONTROLLOOPGOLDSEALINPUTPRESSUREPROPORTIONALVALVE280PSI205ML/MINSPLITVENTTRAP10PSISPLITVENT200ML/MINCOLU

6、MNFLOW2ML/MINBACKPRESSURECONTROLLOOPSplitRatio-100:1Slide#146850/90SplitInjectSampleAnimationFLOWSENSORPROPORTIONALVALVE1PRESSURESENSORSEPTUMPURGEREGULATORFIXED@3ML/MINPURGEVALVEOPENTOTALFLOWCONTROLLOOPGOLDSEALINPUTPRESSUREPROPORTIONALVALVE280PSI205ML/MINSPLITVENTTRAP10PSISPLITVENT200ML/

7、MINCOLUMNFLOW2ML/MINBACKPRESSURECONTROLLOOPSplitRatio-100:1Slide#156850/90SplitSampleVaporizesAnimationFLOWSENSORPROPORTIONALVALVE1PRESSURESENSORSEPTUMPURGEREGULATORFIXED@3ML/MINPURGEVALVEOPENTOTALFLOWCONTROLLOOPGOLDSEALINPUTPRESSUREPROPORTIONALVALVE280PSI205ML/MINSPLITVE