Heat exchanger
AssigneeSulzer Brothers Limited
InventorRoland Naegelin
Life of this patent
Estimating the term…
Abstract
The heat exchanger which acts as a recuperator is constructed of a plurality of identical sub-assemblies which can be manufactured and tested in a plant and shipped as individual units to a construction site. Each sub-assembly includes a plurality of straight tubes which interconnect with spherical shells at each end and which serve to carry a flowable medium. Each sub-assembly also includes a guide tube about the straight tubes which is open at both ends to convey a flowable medium over the straight tubes but which has an outer flange which cooperates with similar flanges on the other sub-assemblies to block any flow of this medium over the outside surfaces of the guide tube from one end to the other.
Claims7
A heat exchanger comprising
- a plurality of sub-assemblies, each sub-assembly including a plurality of straight tubes;
- a pair of tube sheets mounting said tubes therein, each tube sheet being disposed at a respective end of said straight tubes;
- a pair of spherical shells, each said shell extending over a respective tube sheet;
- an inlet line connected to one of said shells to deliver a flowable medium into said shell for passage through said straight tubes;
- an outlet line connected to the other of said shells to exhaust the medium from said straight tubes;
- a guide tube surrounding said straight tubes and having openings at opposite ends for conducting a flowable medium therethrough over said straight tubes;
- and an outer flange on said guide tube intermediate said opposite ends, said flanges of said sub-assemblies being disposed adjacent to each other to form a seal preventing a flow of the flowable medium from passing about each said guide tube between said ends thereof;
- a common plate having said flange of each sub-assembly supported thereon to suspend each subassembly on a vertical axis, said plate having a plurality of openings for each sub-assembly of a size corresponding to the dimensions of a respective guide tube;
- a common tubular wall about said sub-assemblies and secured to said common plate, said tubular wall having openings on one side of said common plate communicating with said openings of said guide tube of each sub-assembly on said side;
- and
- a shell secured in seal-tight manner to said tubular wall at said side to form an annular space for a flow of medium passing from said sub-assemblies through said openings of said side.
A heat exchanger comprising
- a plurality of sub-assemblies, each sub-assembly including a plurality of straight tubes;
- a pair of tube sheets mounting said tubes therein, each tube sheet being disposed at a respective end of said straight tubes;
- a pair of spherical shells, each said shell extending over a respective tube sheet;
- an inlet line connected to one of said shells to deliver a flowable medium into said shell for passage through said straight tubes;
- an outlet line connected to the other of said shells to exhaust the medium from said straight tubes;
- a guide tube surrounding said straight tubes and having openings at opposite ends for conducting a flowable medium therethrough over said straight tubes;
- one of said inlet and outlet lines extending along said guide tube and passing through said flange;
- and an outer flange on said guide tube intermediate said opposite ends, said flanges of said sub-assemblies being disposed adjacent to each other to form a seal preventing a flow of the flowable medium from passing about each said guide tube between said ends thereof;
- and
- a common plate having said flange of each sub-assembly supported thereon to suspend each sub-assembly on a vertical axis, said plate having a plurality of openings of oval shape for passage of a guide tube and said one line therethrough.
Dependencies are inferred from the claim text.