Heat exchanger tube support assembly

A support assembly for securing tubes in a heat exchanger tube bundle in parallel spaced apart relation, comprising a plurality of tube support members concentrically arranged to respectively support and secure individual tubes in the tube bundle, each tube support member including inner and outer support elements rigidly interconnected by means of bars, the lengths of the bars being approximately equal to the diameter of the tubes supported by the respective support member, the bars being spaced apart from each other to form tube openings for receiving and locating respective tubes of the tube bundle and flow passages for permitting relatively unobstructed passage of a heat exchanger fluid exteriorly about the tubes, structural support means supporting and limiting movement of said plurality of tube support members, said structural support means including a plurality of radially arranged beams, each radial beam including means spaced along its length for securing the respective tube support members with adjacent tube support members being axially offset relative to each other in order to minimize resistance to flow of a heat exchanger fluid through the tube bundle, and at least one support element extending along the length of the tube bundle for mounting the radial beams.