System and method for managing heat duty for a heat recovery system
AssigneeGeneral Electric Company
InventorJeffrey Fredrick Magee
Life of this patent
Estimating the term…
Abstract
A system includes an HRSG that includes a plurality of heat exchanger section fluidly coupled to each other. The plurality of heat exchanger sections comprises at least one economizer, at least one evaporator, at least one reheater, and at least one superheater. In addition, the HRSG includes an additional heat exchanger section coupled to two different heat exchanger sections of the plurality of heat exchanger sections. Further, the HRSG includes a controller programmed to selectively fluidly couple the additional heat exchanger section to one of the two different heat exchanger sections to alter a heat duty for the selected heat exchanger section fluidly coupled to the additional heat exchanger.
Claims20
A system, comprising:
- a heat recovery steam generator (HRSG), comprising:
- a plurality of heat exchanger sections fluidly coupled to each other, wherein the plurality of heat exchanger sections comprises at least one economizer, at least one evaporator, at least one reheater, and at least one superheater;
- an additional heat exchanger section coupled to two different heat exchanger sections of the plurality of heat exchanger sections;
- and
- a controller programmed to selectively fluidly couple the additional heat exchanger section to one of the two different heat exchanger sections to alter a heat duty for the selected heat exchanger section fluidly coupled to the additional heat exchanger.
A heat recovery system configured to recover heat from a fluid, comprising:
- a plurality of heat exchanger sections fluidly coupled to each other, wherein the plurality of heat exchanger sections comprises a first heat exchanger section and a second heat exchanger section;
- and
- an additional heat exchanger section coupled to the first heat exchanger section and the second heat exchanger section;
- and
- a controller programmed to selectively fluidly couple the additional heat exchanger section to either the first heat exchanger section or the second heat exchanger section to alter a heat duty for the selected heat exchanger section fluidly coupled to the additional heat exchanger.
A heat recovery system configured to recover heat from a fluid, comprising:
- a plurality of heat exchanger sections fluidly coupled to each other, wherein the plurality of heat exchanger sections comprises a first heat exchanger section and a second heat exchanger section;
- and
- an additional heat exchanger section coupled to the first heat exchanger section and the second heat exchanger section;
- a first set of valves disposed along a first parallel circuit formed between the additional heat exchanger section and the first heat exchanger section;
- a second set of valves disposed along a second parallel circuit formed between the additional heat exchanger section and the second heat exchanger section;
- and
- a controller programmed to selectively fluidly couple the additional heat exchanger section to either the first heat exchanger section or the second heat exchanger section to alter a heat duty for the selected heat exchanger section fluidly coupled to the additional heat exchanger, wherein the controller is configured to cause the first set of valves to be open while keeping the second sets of valves closed when utilizing the first parallel circuit, and the controller is configured to cause the second set of valves to be closed while keeping the first set of valves closed when utilizing the second parallel circuit.
Dependencies are inferred from the claim text.