Tube bank heat exchanger with supports

Claim 1

A TUBULOUS HEAT EXCHANGER INCLUDING AN ELONGATED CASING OF HEXAGONAL PRISMATIC FORM ARRANGED WITH ITS LONGITUDINAL CENTRAL AXIS IN AN UPRIGHT POSITION, THREE TUBE BANKS OF IDENTICAL RHOMBIC PRISMATIC FORM DISPOSED WITHIN AND SUBSTANTIALLY FILLING SAID CASING, EACH OF SAID TUBE BANKS DISPOSED WITH A SPACE SUBTENDED ON TWO SIDES BY AN ADJACENT PAIR OF SIDES OF SAID CASING AND EXTENDING ALONG THE OTHER TWO SIDES FROM THE CASING TO THE LONGITUDINAL CENTRAL AXIS OF THE CASING, SAID TUBE BANKS EACH INCLUDING TUBES HAVING STRAIGHT TUBE LENGTHS CONNECTED BY RETURN BENDS, SAID STRAIGHT TUBE LENGTHS DISPOSED PARALLEL TO ONE OF SAID ADJACENT PAIR OF SIDES OF SAID CASING WHICH BOUND THE SPACE CONTAINING THE TUBE LENGTHS, A VERTICAL COLUMN LOCATED ALONG SAID CENTRAL AXIS, A PLURALITY OF VERTICAL COLUMNS EACH LOCATED AT ONE OF THE CORNERS OF SAID CASING, A PAIR OF SPACED PARALLEL SUPPORT BEAMS FOR EACH OF SAID TUBE BANKS, ONE OF SAID BEAMS EXTENDING BETWEEN COLUMNS LOCATED AT ADJACENT CORNERS OF SAID CASING AND PARALLEL WITH THE SAID STRAIGHT TUBE LENGTHS OF THE ADJACENT TUBE BANKS AND THE OTHER SAID BEAM EXTENDING BETWEEN SAID COLUMN ALONG THE SAID CENTRAL AXIS AND A COLUMN LOCATED IN A CORNER OF THE CASING, AND A NUMBER OF CROSSBARS MOUNTED ON SAID PAIR OF BEAMS FOR SUPPORTING THE TUBES IN SAID TUBE BANK.