Rotary heat exchanger with core built in sectors - has sections supported by plate springs reinforced with stiffening bars

摘要

A rotary heat exchanger has its rotor constructed from a number of sectors which are in turn built up from corrugated plates (26) supported in a framework (32). To take up play occuring between the plates (26) as a result of erosion and corrosion during service, a spring plate (28) is fitted at the outer end of the sector. The spring plate (28) has turned over edges which are welded to the side frames (32). Round reinforcing rods (36) are welded inside the corners of the turned over edges. Further strengthening angle tie bars (33) ensure that the spring plates maintain their curved shape but allow the corrugated plates (26) to curve outwards so that their centre of curvature is in the region of the rotor axis.