Exhaust gas flow regulator and heat recovery steam generator having same
AssigneeDoosan Enerbility Co., Ltd.
InventorGyeong Mo Nam
Life of this patent
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Abstract
An exhaust gas flow regulator and a heat recovery steam generator including the same are provided. The exhaust gas flow regulator includes a plurality of first tubes spaced apart from each other in a vertical direction, a support plate disposed in a direction perpendicular to the extension direction of the first tubes and through which the plurality of first tubes penetrates, and a second tube disposed at one or both ends of the support plate so as to be coupled to the support plate and extending parallel to the first tubes, wherein the second tube is provided with a guide plate disposed to redirect exhaust gases flowing adjacent to the second tube toward the first tube.
Claims19
An exhaust gas flow regulator comprising:
- a plurality of first tubes spaced apart from each other in a vertical direction and elongated in an extension direction;
- a support plate disposed perpendicular to the extension direction and through which the plurality of first tubes penetrates;
- and
- a pair of second tubes, having a larger diameter than the plurality of first tubes, disposed at a first end of the support plate and a second end of the support plate, and extending parallel to the plurality of first tubes,
- two pairs of coupling plates disposed perpendicular to the extension direction, a first pair of the two pairs of coupling plates directly coupling a first one of the second tubes to the first end of the support plate, and a second pair of the two pairs of coupling plates directly coupling a second one of the second tubes to the second end of the support plate;
- wherein at least one of the pair of second tubes is provided with a guide plate configured to redirect exhaust gases flowing around the at least one of second tubes toward the plurality of first tubes.
A heat recovery steam generator (HRSG) designed to facilitate a recovery of heat from high-temperature exhaust gases discharged from a gas turbine, the HRSG comprising:
- at least one stack;
- an air duct including a plurality of flow paths having different cross-sectional areas and through which the exhaust gases flow from the gas turbine to the stack;
- and
- an exhaust gas flow regulator disposed in the air duct, the exhaust gas flow regulator comprising:
- a plurality of first tubes spaced apart from each other in a spacing direction and elongated in an extension direction perpendicular to the spacing direction;
- a support plate disposed perpendicular to the extension direction and through which the plurality of first tubes penetrates;
- and
- a pair of second tubes, having a larger diameter than the plurality of first tubes, disposed at a first end of the support plate and a second of the support plate, and extending parallel to the plurality of first tubes,
- two pairs of coupling plates disposed perpendicular to the extension direction, a first pair of the two pairs of coupling plates directly coupling a first one of the second tubes to the first end of the support plate, and a second pair of the two pairs of coupling plates directly coupling a second one of the second tubes to the second end of the support plate;
- wherein at least one of the pair of second tubes is provided with a guide plate configured to redirect the exhaust gases flowing around the at least one of second tubes toward the plurality of first tubes.
Dependencies are inferred from the claim text.