Salvaging and restraining recuperator from collapse

摘要

Heat exchange apparatus of the recuperator type is provided with means by which the inner tubular member can be withdrawn from a state of collapse and restrained in a position against further collapse. The heat exchange apparatus comprises a first tubular member having hookable means thereon; a second tubular member generally coaxial with said first member and disposed outwardly thereof so as to define a fluid flow zone therebetween, said second member having at least one passage therethrough in communication with said fluid flow zone and an outwardly disposed passage-circumscribing ring; a rod member extending inwardly through said passage and into said flow zone, means carried by the inward end of said rod in hooked relationship with said hookable means; an apertured cap disposed coaxially about said rod outwardly of said second tubular member and means substantially simultaneously compressingly urging said cap against said ring member to provide a seal therebetween while outwardly tensioning said rod member.