Swirler for gas turbine

Patent metadata

Field	Value
Publication number	US-2016334104-A1
Application number	US-201415106571-A
Country	US
Kind code	A1
Filing date	Mar 21, 2014
Priority date	Dec 19, 2013
Publication date	Nov 17, 2016
Grant date	—

Abstract

Provided herein is a swirler for a gas turbine. The swirler includes a support plate including an injection part to inject a fuel supplied from the outside, a support shaft connected to the support plate, a guide part connected to the support plate and the support shaft and configured to mix a fluid introduced via a side surface of the support plate with the fuel injected from the injection part and to guide the mixture in at least one of a first direction and a second direction, the first direction being a longitudinal direction of the support shaft and the second direction being a direction swirling the support shaft, and a cover housing spaced apart from the support plate and coupled to the guide part so as to form a transfer flow path of the fluid together with the guide part.

First claim

1 . A swirler for a gas turbine, the swirler comprising:
a support plate comprising an injection part to inject a fuel supplied from the outside; a support shaft connected to the support plate; a guide part connected to the support plate and the support shaft and configured to mix a fluid introduced via a side surface of the support plate with the fuel injected from the injection part and to guide the mixture in at least one of a first direction and a second direction, the first direction being a longitudinal direction of the support shaft and the second direction being a direction swirling the support shaft; and a cover housing spaced apart from the support plate and coupled to the guide part so as to form a transfer flow path of the fluid together with the guide part.

2 . The swirler of claim 1 , wherein the guide part is installed at the support shaft so as to be in a spiral form in a longitudinal direction of the support shaft.

3 . The swirler of claim 1 , wherein the support plate and the support shaft are connected perpendicular to each other.

4 . The swirler of claim 1 , wherein the guide part comprises a plurality of guide parts,
wherein the guide parts are spaced apart from each other by a constant interval so as to form an inlet through which the fluid is introduced and an outlet through which the fluid guided between the guide parts is discharged.

5 . The swirler of claim 1 , further comprising a fuel homogenizing part connected to a rear surface of the support plate and configured to homogeneously guide the fuel supplied from the outside to the injection part.

6 . The swirler of claim 5 , wherein the fuel homogenizing part comprises:
a storage case provided with an opening at a side thereof and a space therein and configured to temporarily store the fuel supplied from the outside; and a cover plate installed at the opening of the storage case and provided with an injection hole through which the fuel supplied from the outside is injected.

7 . The swirler of claim 1 , wherein the injection part injects the fuel in a moving direction of the fluid guided by the guide part.

8 . The swirler of claim 1 , further comprising a protrusion protruding from the support plate.

9 . The swirler of claim 8 , wherein the protrusion has a hole through which the fuel is injected.

10 . The swirler of claim 8 , wherein the guide part and the protrusion comprise a plurality of guide parts and a plurality of protrusions, respectively,
wherein each protrusion is disposed between two adjacent ones of the guide parts.

11 . A swirler for a gas turbine, the swirler comprising:
a fuel homogenizing part to temporarily store a fuel supplied from the outside and to homogenize a concentration of the fuel; a support plate connected to the fuel homogenizing part and provided with an injection hole connected to the fuel homogenizing part and supplying the fuel in a first direction, the first direction being a longitudinal direction of a support shaft; the support shaft connected to the support plate; a guide part connected to the support plate and the support shaft and configured to mix a fluid introduced via a side surface of the support plate with the fuel injected from the injection hole and to guide the mixture in at least one of the first direction and a second direction, the second direction being a direction swirling the support shaft; and a cover housing spaced apart from the support plate and coupled to the guide part so as to form a transfer flow path of the fluid together with the guide part.

12 . The swirler of claim 11 , wherein the fuel homogenizing part comprises:
a storage case provided with an opening at a side thereof and a space therein and configured to temporarily store the fuel supplied from the outside; and a cover plate installed at the opening of the storage case and provided with an injection hole through which the fuel supplied from the outside is injected.

13 . The swirler of claim 11 , wherein the injection part injects the fuel in a moving direction of the fluid guided by the guide part.

14 . The swirler of claim 11 , further comprising a protrusion protruding from the support plate.

15 . The swirler of claim 14 , wherein the protrusion has a hole through which the fuel is injected.

16 . The swirler of claim 14 , wherein the guide part and the protrusion comprise a plurality of guide parts and a plurality of protrusions, respectively,
wherein each protrusion is disposed between two adjacent ones of the guide parts.

Assignees

• Hanwha Techwin Co Ltd
• Hanwha Techwin Co Ltd

Inventors

• Yang Si Won
• Jung Seung Chai
• Kim Sinhyun

Classifications

• F23R3/14 Primary

  by using swirl vanes · CPC title

• F05D2220/32

  in gas turbines · CPC title

• F23R3/286

  having fuel-air premixing devices (F23R3/30 takes precedence) · CPC title

• F02C7/22 Primary

  Fuel supply systems · CPC title

• F23C2900/07001

  Air swirling vanes incorporating fuel injectors · CPC title