The appliation of dry gas-seal on the high temperature HTM circulation pump;

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.