Modular exhaust gas steam generator with common boiler casing
AssigneeThe Babcock & Wilcox Company
InventorsRaymond G. Kidaloski, Harry S. Olinger, Stephen A. Bryk
Life of this patent
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Abstract
A shop assembled modular steam generator wherein each module includes top supported pressure parts, casing, and a frame structure. These modules are readily transported to a remote construction site and interconnected. Each of the superheater, high pressure boiler, intermediate pressure boiler, low pressure boiler, and economizer sections of the generator comprise separate center and end modules whose casings are joined to provide a gas tight flow path around the pressure parts.
Claims18
A modular exhaust gas steam generator wherein each said module comprises:
- (a) an open box frame through which hot exhaust gases travel, a portion of said frame being in contact with said gases;
- (b) casing means fixedly secured to selected perimeter surfaces of said box frame thereby forming an integral part of said box frame for sealably closing said surface of said box frame and for retaining said gases within said box frame;
- (c) tubing means extending within and nearly the height of said box frame, said tubing means being in contact with said hot gases for generating steam in said steam generator;
- (d) header means within said box frame and connected to said tubing means for distributing fluid thereto, and;
- (e) connecting means secured to an upper region of said box frame for top supporting said header and said tubing means;
- whereby adjacent said modules are sealably secured together forming a unitary gas tight enclosure through which exhaust gases travel.
A top-supported steam generator module comprising:
- (a) a generally rectangular support frame comprising:
- (1) vertical corner supports extending in parallel relationship in respective corners of said rectangular frame;
- (2) bracing means secured to adjacent said vertical corner supports for bracing said support frame;
- (3) an upper supporting frame rigidly connected to the upper region of said corner supports;
- (4) a lower supporting frame rigidly connected to the lower region of said corner supports;
- and
- (5) brace members on at least two sides of said rectangular frame, connecting between adjacent said vertical corner supports;
- (b) horizontally extending upper and lower headers and a tube bank including vertically extending rows of tubes disposed in a generally parallel, spaced array, each of said tubes being connected at opposite ends to said horizontally extending upper and lower headers;
- (c) an upper casing secured to said upper supporting frame and a lower casing secured to said lower supporting frame for sealably closing the upper and lower ends of said rectangular frame, and;
- (d) top supporting means secured to said upper supporting frame for supporting said upper header whereby said means support the weight of said tube bank.
Dependencies are inferred from the claim text.