| 摘要 |
The adiabatic calorimeter apparatus disclosed herein is designed for chemical hazard research, particularly the study of self-heating reactions, which can result in a runaway situation. The reaction vessel and associated components in this apparatus closely simulate the structure and operation of a typical chemical plant reactor. The reaction vessel is fitted into a metal shell and the entire unit is suspended in an insulated oven. During the exothermic reaction the adiabatic temperature rise and pressure rise is simultaneously monitored and recorded as a function of time. A first stage control system maintains the temperature of the reaction vessel in equilibrium with the reaction mix and utilizes electrical energy to compensate out the heat capacity effect of the reactor. A second stage control keeps the temperature of the oven and the reaction vessel at the same level, to insure that the reaction is taking place in an adiabatic environment.
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