Sliding connections for separating different pressures and temperatures in the HTR

Abstract Sliding connections can be used at such positions where gas compartments with different pressures and temperatures must be seperated from each other. These connections should be able to compensate different temperatures during operation and to accommodate axial and angular offsets and vibrations with connecting pipes. Determination of the leakage behaviour and the reliability of the system necessitates design work, computations and experimentation. The functional reliability and approval qualification capability of the system have already been demonstrated with the THTR. The permissible leakage values can be guaranteed for every diameter, based on tested sliding connections up to 3000 mm diameter. The design-determinant influencing parameters have been located.