Heat transfer equipment

In a device for performing chemical or absorptive processes having a chamber adapted to contain a bed of free-flowing granular material, said chamber containing a plurality of spirally wound cylindrical tube coils which are spaced apart, nested together, and extend concentrically around a symmetrical axis of the tube coils, each cylindrical tube coil being formed from a plurality of tube bundles which are spirally wound together in a substantially cylindrical configuration, each of the tube bundles containing a plurality of tubes, at least at one end of the coil the tube bundles which form a tube coil emerge from the coil at different defined spaced points around the circumference of the coil, adjacent tubes in a tube coil being spaced apart and the distance decreases between adjacent tubes in a tube bundle as the tube bundle emerges from a tube coil, said emerging tube bundle extending substantially parallel to said symmetry axis and being connected to a plurality of initial tube collectors which extend radially from a main collector, said emerging tube bundles being grouped closely together whereby large areas at the end of the tube coils are left free of emerging tube bundles.

In a device for performing chemical or adsorptive processes having a chamber adapted to contain a bed of free-flowing granular material, said chamber containing a plurality of spirally wound cylindrical tube coils which are spaced apart, nested together, and extend concentrically around a symmetrical axis of the tube coils, each cylindrical tube coil being formed from a plurality of tube bundles which are spirally wound together in a substantially cylindrical configuration, each of the tube bundles containing a plurality of tubes, at least at one end of the coil the tube bundles which form a tube coil emerge from that coil at different defined space points around the circumference of the coil, adjacent tubes in a tube coil being spaced apart and the distance decreases between adjacent tubes in a tube bundle as that tube bundle emerges from a tube coil, each emerging tube bundle extending substantially parallel to said symmetry axis and then having one or more bends to extend substantially radially and connecting with a tube collector, with the radially extending tube bundles from outer coils being radially superimposed on radially extending tube bundles from inner coils, said emerging tube bundles being grouped closely together whereby large areas at the end of the tube coils are left free of emerging tube bundles.

The device of claim 28, wherein a longitudinal axis of the device is essentially vertical and coincides with the symmetry axis, and the collector is part of a steam collecting drum.