HRSG with stepped tube restraints
AssigneeGeneral Electric Company
InventorsJeffrey Frederick Magee, Van Dang, Paul John Chapman, Aaron James Yeaton
Life of this patent
Estimating the term…
Abstract
A heat recovery steam generator (HRSG) includes: a plurality of vertically-aligned HRSG tubes; and a plurality of stepped tube restraints coupled to the plurality of vertically aligned HRSG tubes. Each stepped tube restraint includes a plurality of tube restraints. The plurality of tube restraints are arranged in an array such that each successive tube restrain is vertically higher than and axially aft of an adjacent tube restraint.
Claims18
A heat recovery steam generator (HRSG) comprising:
- a plurality of vertically aligned HRSG tubes arranged in multiple rows;
- and
- a plurality of stepped tube restraints coupled to the plurality of vertically aligned HRSG tubes, each stepped tube restraint of the plurality of stepped tube restraints comprising a plurality of tube restraints;
- wherein the plurality of tube restraints is arranged in an array such that each successive tube restraint is vertically higher than and axially aft of an adjacent tube restraint;
- and
- wherein each HRSG tube of the plurality of vertically aligned HRSG tubes comprises a plurality of angled fins.
A heat recovery steam generator (HRSG) comprising:
- a plurality of vertically aligned vertically aligned HRSG tubes;
- a plurality of stepped tube restraints coupled to the plurality of vertically aligned HRSG tubes, each stepped tube restraint of the plurality of stepped tube restraints comprising a plurality of tube restraints;
- and
- at least one vertical spacer coupled between at least one pair of adjacent tube restraints of the plurality of tube restraints;
- wherein each stepped tube restraint of the plurality of stepped tube restraints forms an angle with a horizontal axis between about 10 degrees and about 60 degrees.
A heat recovery steam generator (HRSG) comprising:
- a plurality of vertically aligned HRSG tubes;
- and
- a plurality of angled tube restraints coupled to the plurality of vertically aligned HRSG tubes, each angled tube restraint of the plurality of angled tube restraints comprising one or more planar tube restraints;
- wherein each angled tube restraint of the plurality of angled tube restraints forms an angle with a horizontal axis between about 10 degrees and about 60 degrees;
- and
- wherein at least one angled tube restraint of the plurality of angled tube restraints forms an angle with a horizontal axis that is different from at least one other angled tube restraint of the plurality of angled tube restraints.
Dependencies are inferred from the claim text.