Abstract: A vertical heat exchanger including a vertical tube bundle connected between a lower inlet manifold and upper outlet manifold. The tube bundle comprises numerous pairs of concentric tubes with the inner tube being spaced from the outer tube to form an annular flow passage positioned around an inner flow passage. The inner tubes are welded between outer tube sheets that form a part of the upper and lower manifolds while the outer tubes are welded between inner tube sheets forming part of these manifolds. Each of the manifolds has a distributor ring which has radially directed openings throughout its periphery so as to provide for a radial flow in the manifold. Fluid enters the lower manifold through suitable inlet nozzles and exits the upper manifold through suitable outlet nozzles. A high temperature heating gas is directed up through the inner tubes of each pair of tubes by a conical inlet distributor and exits the upper end of the tube bundle through a similar conical distributor.

Abstract: A heat storage apparatus is disclosed providing a vertical tube bundle arrangement in a vessel containing a heat storage medium. The tube bundle is divided into modular sector-shaped units each having a radial distribution manifold at the bottom and top with each radial distribution manifold having a plurality of perpendicular secondary manifolds to which the heat exchange tubes are attached. The modular units are supported on radial beams which support the units by the secondary manifolds. Alternate means may be used to feed the fluid through the tubes.

Abstract: Internal tube sheet sealing apparatus assembly for tubular heat exchangers which operate with pressures of, e.g., greater than 1000 psi on both sides of the tube sheet and wherein the tube sheet itself is usually subject to a lower differential pressure, comprising tube sheet loading means including a plurality of shear means assemblies and bolts the can load the tube sheet joint independently of each other, said tube sheet loading means enabling (1) the tightness of the tube sheet joint and tube joints to be inspected during differential pressure hydrotesting of the shell side without the channel cover assembly mounted in place and (2) "in-service" re-loading of the tube sheet joint without removing the channel cover assembly.