Intercoolers with thermal press for two-stage ammonia refrigeration systems

Аn intercooler in a compound system is to cool the discharge ammonia vapor between stages. This is usually done by bubbling process through a bath of liquid ammonia, and inevitable pressure drop- occurred. Slugging is the most dangerous break-downs with ammonia compressors and more frequenth happen at the high-stage e.g. after an intercooler. The direct contact evaporating cooling device and the heat compression effect has been used instead of bubbling open (and closed) type intercooler. Hit piping diagrams have been shown: for single unit, for several compressors with individual and commn intercooler, for compound system and for seasonal low temperature supply when some addition compressors are possible to use.