Shell boilers
AssigneeVosper Thornycroft (UK) Limited
InventorJohn P. Moore
Life of this patent
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Abstract
A shell boiler containing boiler water or other fluid to be heated, including a furnace providing a fluidized bed and disposed inside or outside the boiler. Heat transfer pipes extend through the fluidized bed and are connected for natural circulation with the boiler fluid. In a preferred embodiment, the furnace is constituted by a furnace section of the boiler and the heat transfer pipes extend vertically through the bed and through the furnace section and are provided throughout the entire length of the furnace section.
Claims10
A horizontal shell boiler comprising a shell, a horizontal passage extending through the shell, a space between the shell and the passage containing boiler fluid, at least one opening extending downwardly from the passage to the bottom of the shell forming a furnace section with the passage for housing a fluidized bed therein, and heat transfer pipes extending vertically through the furnace section for extending through and above the fluidized bed, the heat transfer pipes being provided throughout the length of the furnace section and being connected to the space between the shell and the passage for natural circulation of the boiler fluid therethrough.
Dependencies are inferred from the claim text.