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US 2020/0256556 A1Published application
Natural circulation multi-circulation package boiler for steam assisted gravity drainage (sagd) process
AssigneeThe Babcock & Wilcox Company
InventorsMelvin J. ALBRECHT, Jason M. MARSHALL, Jonathan B. FORD, Jeremy L. REMUS
Life of this patent
Estimating the term…
Abstract
A boiler includes a steam drum, an intermediate drum, and a lower drum. Each drum is divided into a clean section and a concentrated section. A channel that is fluidly connected to the clean section also runs down one side of the concentrated section in the intermediate drum and the lower drum. The presence of the channels permits low-quality feedwater tubes and high-quality feedwater tubes to be arranged in parallel rows next to each other.
Claims20
A boiler, comprising:
- an intermediate drum comprising (A) an internal divider that divides the intermediate drum into a clean section and a concentrated section, and (B) a channel that is fluidly connected to the clean section, the channel running adjacent a sidewall of the intermediate drum through the internal divider to a distal end of the concentrated section;
- a lower drum comprising (A) an internal divider that divides the intermediate drum into a clean section and a concentrated section, and (B) a channel that is fluidly connected to the clean section, the channel running adjacent a sidewall of the intermediate drum through the internal divider to a distal end of the concentrated section;
- a furnace defined by a furnace sidewall and a baffle wall, wherein tubes in a front portion of the furnace sidewall and a front portion of the baffle wall extend between the intermediate drum channel and the lower drum channel;
- a clean section steam generating bank extending between the intermediate drum clean section and the lower drum clean section;
- and
- a concentrated section steam generating bank extending between the intermediate drum concentrated section and the lower drum concentrated section.
3 more elements
A method for using a boiler, comprising:
- receiving a boiler that comprises
- an intermediate drum comprising (A) an internal divider that divides the intermediate drum into a clean section and a concentrated section, and (B) a channel that is fluidly connected to the clean section, the channel running adjacent a sidewall of the intermediate drum through the internal divider to a distal end of the concentrated section;
- a lower drum comprising (A) an internal divider that divides the intermediate drum into a clean section and a concentrated section, and (B) a channel that is fluidly connected to the clean section, the channel running adjacent a sidewall of the intermediate drum through the internal divider to a distal end of the concentrated section;
- a furnace defined by a furnace sidewall and a baffle wall, wherein tubes in a front portion of the furnace sidewall and a front portion of the baffle wall extend between the intermediate drum channel and the lower drum channel;
- a clean section steam generating bank extending between the intermediate drum clean section and the lower drum clean section;
- and
- a concentrated section steam generating bank extending between the intermediate drum concentrated section and the lower drum concentrated section;
- and
- using steam generated by the boiler.
6 more elements
Dependencies are inferred from the claim text.