Heat-using system for a small HT reactor

摘要

The invention relates to a heat-using system for a small HT reactor, which is distinguished by a relatively low space requirement and can easily be assembled and is simple to mount on site. It consists of at least two, preferably three steam generators of annular cross-section which are arranged coaxially one in another and installed in a steel pressure vessel above the small HT reactor. The feedwater feeders and the main steam discharge lines from the steam generators are arranged independently of one another and radially symmetrically relative to one another, the feedwater feeders being provided in lengthened casing sections which serve to conduct cold gas, while the main steam discharge lines are located in the gaps between these casing sections. In all the steam generators, with exception of the innermost steam generator (the main steam lines are guided here upwards centrally in the heat-using system), an expansion zone which is realised by the helix-like displacement of the lines is provided in the main steam lines.