GB905646A - Improvements in or relating to regenerative heat exchangers - Google Patents

Abstract

905,646. Thermal regenerators. JOHNSTONE (ENGINEERS) Ltd., ARCHIBALD April 28, 1960 [May 2, 1959], No. 15085/59. Class 64 (1). In a thermal regenerator of the rotary matrix or rotary duct type in which the heat transfer material is contained in an annulus divided by radially extending walls into compartments, seals between the ducts and the matrix extend from the radial walls of each matrix compartment and from the arcuate walls forming the inner and outer boundaries of the compartment, these latter seals overlapping the arcuate parts of the next seal (Fig. 4, not shown), all the seals being adjustable axially with respect to the matrix assembly by means operable from outside the assembly. Sealing is preferably by a rubbing contact using sealing strips, the resilience of which may be supplemented by springs. Fig. 5 shows a preferred form of seal in a regenerator with a stationary matrix across the ends of which move rotary ducts 17 the ends of which incorporate sealing plates 18, 19. The radial strips 41 (Fig. 6) are carried by a seal-plate 25 adjustably secured by bolts 29 to the radial division plate 3. The arcuate seals 26, 27 may be either fixed as by welding, to the seal-plate 25, or alternatively an independent and individual adjustment may be provided for the arcuate seals. The seal assembly may be adjusted axially by an arrangement of slider cams 37 or by rotary cams or levers. Adjustment may be effected manually (as shown) or by other means, e.g. hydraulic cylinders.