System and method for managing heat duty for a heat recovery system
AssigneeGeneral Electric Company
InventorJeffrey Fredrick Magee
Life of this patent
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Abstract
A system includes an HRSG that includes a plurality of heat exchanger sections 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 controller for a heat recovery steam generator (HRSG), wherein the HRSG comprises a plurality of heat exchanger sections that are fluidly coupled together, the plurality of heat exchanger sections comprises at least one economizer, at least one evaporator, at least one reheater, and at least one superheater, wherein the controller comprises:
- a memory storing instructions to perform operations of the HRSG;
- and
- a processor configured to execute the instructions, wherein the instructions, when executed by the processor, cause the controller to:
- selectively fluidly couple an additional heat exchanger section to one of two different heat exchanger sections that the additional heat exchanger section is coupled to to alter a heat duty for the selected heat exchanger section fluidly coupled to the additional heat exchanger section, wherein the plurality of heat exchanger sections comprises the two different heat exchanger sections.
A heat recovery system configured to recover heat from a fluid, comprising:
- a controller for the heat recovery system, wherein the heat recovery system comprises a plurality of heat exchanger sections fluidly coupled to each other, and the plurality of heat exchanger sections comprise a first heat exchanger section and a second heat exchanger section, and the controller comprises:
- a memory storing instructions to perform operations of the heat recovery system;
- and
- a processor configured to execute the instructions, wherein the instructions, when executed by the processor, cause the controller to:
- selectively fluidly couple an 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 section, wherein the additional heat exchanger section is coupled to both the first heat exchanger section and the second heat exchanger section.
A heat recovery system configured to recover heat from a fluid, comprising:
- a controller for the heat recovery system, wherein the heat recovery system comprises a plurality of heat exchanger sections fluidly coupled to each other, and the plurality of heat exchanger sections comprise a first heat exchanger section and a second heat exchanger section, and the controller comprises:
- a memory storing instructions to perform operations of the heat recovery system;
- and
- a processor configured to execute the instructions, wherein the instructions, when executed by the processor, cause the controller to:
- selectively fluidly couple an 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 section, wherein the controller is configured to cause a first set of valves disposed along a first parallel circuit formed between the additional heat exchanger section and the first heat exchanger section to be open while keeping a second set of valves disposed along a second parallel circuit formed between the additional heat exchanger section and the second heat exchanger section 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, wherein the additional heat exchanger section is coupled to both the first heat exchanger section and the second heat exchanger section.
Dependencies are inferred from the claim text.