AUTOMATIC MEASURING DEVICE FOR VAPOR-LIQUID EQUILIBRIUM DATA

摘要

PROBLEM TO BE SOLVED: To provide an automatic measuring device for vapor-liquid equilibrium data for efficiently and automatically measuring highly accurate vapor-liquid equilibrium data. ;SOLUTION: An automatic measuring device 10 for vapor-liquid equilibrium data is provided with a thermostatic chamber R, an equilibrium cell vessel 14 held inside the thermostatic chamber, a first sample tank 16 for containing a sample A, a first injector 18 for receiving the sample A from the first sample tank and for injecting it into the equilibrium cell vessel, a second sample tank 20 for containing a sample B, a second injector 22 for receiving the sample B from the second sample tank and for injecting it into the equilibrium cell vessel 14, and a computer 24. The computer controls the injectors to inject prescribed quantities of samples into the equilibrium cell vessel, and also controls the injecting valves to finely adjust the injecting quantities of the samples. Further, on the basis of the data obtained from the thermometer and pressure-gauge of the equilibrium cell vessel, the computer judges whether or not the vapor components and the liquid components inside the equilibrium cell vessel are in a vapor-liquid equilibrium condition under a prescribed temperature, and then the data at the time it is judged that they are in a vapor-liquid equilibrium condition are processed to obtain the vapor-liquid equilibrium data of the samples.;COPYRIGHT: (C)1999,JPO