The high temperature thermal medium oil touchs the air in the traditional expansion system, it will be oxidated quickly.

The hot kerosene stove has a very important role in the vacuum carbonate desulfurization process.

This paper analyses the fouling reason of the heat conducting oil of heat-medium heater system, introduces the cleaning ways of the system and compares the difference between different ways, Then illustrates the notice items and the replacing work of heat conducting oil after the cleaning.

By the analysis of the present condition and problems in the heating system that had been built in the lower atmospheric pressure and high elevation cold region, the authors intend to adopt the new heating medium in heating system in order to replace normal water, enlarge the mean temperature of heating medium, then increase the coefficient of heat transfer and the heat of emission.

Improvement measures for the heat medium leakage in the coil in process column;

The causes for the mechanical seal leakage of the heat medium main pump was analysed from two aspects such as running and installation of the mechanical seal.

Discussion on low-boilling-point compound content supernormal in HTM;

This article estimates HTM circulation capacity and heattransfer area of the first reactor on the basis of the material balance and energy balance of the first esterfication reactor which was added during the No.