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US 4,240,234 AGranted
Adjustable buckstay system for vapor generators or the like
AssigneeFoster Wheeler Energy Corporation
InventorsFrantisek L. Eisinger, Harry H. Pratt, Clarence C. Eich
Life of this patent
Estimating the term…
Abstract
There is disclosed an adjustable buckstay system for use in association with the walls of vapor generators or the like and whereby the magnitude of necessary clearances in various connecting elements of the system may be adjusted to reduce or eliminate vibration in the system.
Claims21
An adjustable buckstay system for controlling vibration in vapor generators and the like which include a plurality of vertically disposed walls defining a chamber for hot gases, said buckstay system comprising:
- a buckstay beam disposed transversely adjacent each of said walls and having end portions which extend beyond the ends of the adjacent walls, whereby the end portions of adjacent buckstay beams are juxtaposed at each wall corner defined by adjacent walls of the generator;
- spacer assemblies having elements connecting said buckstay beams and respective associated walls in spaced relationship and including means for permitting relative movement between said buckstay beams and respective associated generator walls due to differential thermal expansion between said walls and said beams;
- a tension tie disposed transversely adjacent each of said walls between each beam and the associated wall;
- corner assembly means having elements connected adjacent buckstay beam end portions to one another and also connecting adjacent tension tie ends to one another and including means for permitting relative movement of adjacent end portions due to thermal expansion of said beams;
- at least one of said means for permitting relative movement between said beams and said generator walls, and between said adjacent beam end portions, including means defining a clearance of predetermined magnitude between connecting elements thereof;
- and
- adjustment means for adjusting the magnitude of said clearance.
4 more elements
In a vapor generator or the like comprising:
- a first pair of oppositely disposed vertical walls, and a second pair of oppositely disposed vertical walls extending between said first pair of walls and joined thereto to define a chamber for hot gases;
- a buckstay beam disposed transversely adjacent each of said walls and having end elements which extend beyond the ends of the adjacent wall, whereby end elements of adjacent buckstay beams are juxtaposed at each wall corner defined by adjacent walls of the generator;
- means supporting said buckstay beams in spaced relationship to said walls and permitting differential transverse thermal expansion between said walls and said beams;
- and
- a tension tie disposed transversely adjacent each of said walls between each beam and the associated wall;
- corner assembly means connecting adjacent buckstay beam end elements and adjacent tension tie ends, each assembly means comprising a corner element, and means supporting said corner element relatively to a wall corner, link means extending between said corner element and the adjacent juxtaposed buckstay beam end element;
- means connecting respective ends of said link means to said corner element and to the adjacent juxtaposed buckstay beam end elements, said connecting means connecting said link means and said elements through means defining a clearance in at least one of said elements;
- and
- means for adjusting the effective length of said link means.
6 more elements
In a vapor generator or the like comprising:
- a first pair of oppositely disposed vertical walls, and a second pair of oppositely disposed vertical walls extending between said first pair of walls and joined thereto to define a chamber for hot gases;
- a buckstay beam disposed transversely adjacent each of said walls and having elements which extend beyond the ends of the adjacent wall, whereby end elements of adjacent buckstay beams are juxtaposed at each wall corner by adjacent walls of the generator;
- means supporting said beams in spaced relationship to said walls and including means permitting differential transverse thermal expansion between said walls and beams;
- and
- corner assembly means connecting adjacent buckstay beam end elements, each assembly means comprising a corner element, means supporting said corner element relative to a wall corner, link means extending between said corner element and the adjacent juxtaposed beam end element;
- connecting means pivotally connecting respective ends of said link means to said corner element and to the adjacent and juxtaposed beam end elements;
- means defining an opening in at least one of said elements for receiving said connecting means, said opening being of size relative to said connecting means to permit lateral movement of said connecting means;
- and means for controlling the position of said connecting means in said opening.
5 more elements
An adjustable buckstay system for controlling vibration in vapor generators and the like which include plurality of vertically disposed walls defining a chamber for hot gases, said buckstay system comprising:
- a buckstay beam disposed transversely adjacent each of said walls at different elevations thereof and having end elements which extend beyond the ends of the adjacent walls, whereby the end elements of adjacent buckstay beams are juxtaposed at each wall corner defined by adjacent walls of the generator;
- a tension tie disposed transversely adjacent each of said walls between each beam and the associated wall;
- corner assembly means connecting adjacent buckstay beam end elements and adjacent tension tie ends, each assembly means comprising a corner element, means supporting said corner element relative to a wall corner, link means extending between said corner element and the adjacent juxtaposed beam end element;
- connecting means pivotally connecting respective ends of said link means to said corner element and to the adjacent juxtaposed beam end elements;
- means defining an opening in at least one of said elements for receiving said connecting means, said opening being of size relative to said connecting means to permit lateral movement of said connecting means;
- and means for controlling the position of said connecting means in said opening;
- a vertical beam connecting adjacent transverse buckstay beams;
- spacer assemblies having elements connecting said vertical beams and respective associated walls in spaced relationship and including means for permitting relative movement between said beams and respective associated generator walls due to differential thermal expansion between said walls and said beams;
- said means for permitting relative movement between said beams and said generator walls including means defining a clearance of predetermined magnitude between said vertical beam and said wall;
- and
- adjustment means for adjusting the magnitude of said clearance.
8 more elements
Dependencies are inferred from the claim text.