[특허]Compressor air provided to combustion chamber plenum and turbine guide vane

SIEMENS AKTIENGESELLSCHAFT

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특허 상세정보

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Compressor air provided to combustion chamber plenum and turbine guide vane

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-007/12 F02C-007/16 F02C-007/18 F01D-025/08 F01D-025/12 F02C-003/04 F02C-003/14
출원번호	US-0352129 (2012-09-04)
등록번호	US-9745894 (2017-08-29)
우선권정보	EP-11186361 (2011-10-24)
국제출원번호	PCT/EP2012/067201 (2012-09-04)
§371/§102 date	20140416 (20140416)
국제공개번호	WO2013/060516 (2013-05-02)
발명자 / 주소	Nilsson, Ulf
출원인 / 주소	SIEMENS AKTIENGESELLSCHAFT
대리인 / 주소	Beusse Wolter Sanks & Maire
인용정보	피인용 횟수 : 0 인용 특허 : 22

초록
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A gas turbine having a combustion chamber with exhaust section through which combustion gas is exhaustable, plenum chamber and compressor are provided. The plenum chamber is coupled to the compressor wherein a first quantity of compressed fluid is injectable therein at a radially inner wall of the plenum chamber. A guide vane section with at least one airfoil is coupled to the exhaust section so combustion gas is flowable against the airfoil. The exhaust section and guide vane section are housed inside the plenum chamber. The airfoil has a first flow chamber where a second quantity of compressed fluid is flowable through the guide vane section from the compressor in the direction from the inner wall to a outer wall of the plenum chamber before being discharged. The second quantity of compressed fluid streamable through the guide vane section is larger than the first quantity of the compressed fluid.

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1. A gas turbine comprising a combustion chamber with an exhaust section through which a combustion gas exhausts,a plenum chamber,a compressor for generating a compressed fluid,wherein the plenum chamber is coupled to the compressor such that a first quantity of the compressed fluid is injectable into the plenum chamber at a radially inner wall of the plenum chamber,a guide vane section comprising an airfoil, a vane inner platform and a vane outer platform,wherein the guide vane section is coupled to the exhaust section such that the combustion gas flows against the airfoil,wherein the exhaust section and the guide vane section are housed inside the plenum chamber, wherein the airfoil comprises a first flow chamber which is configured such that a second quantity of the compressed fluid flows through the guide vane section from the compressor in a direction from the radially inner wall to a radially outer wall of the plenum chamber before being discharged into the plenum chamber in a radially outward direction, andwherein the second quantity of the compressed fluid is larger than the first quantity of the compressed fluid, anda diffuser, wherein the diffuser is directly attached to the vane outer platform such that the second quantity of the compressed fluid is guidable from the radially outer end of the first flow chamber through the diffuser and into the plenum chamber in a radially outward direction. 2. The gas turbine according to claim 1, wherein the diffuser comprises a first flow cross-section and a second flow cross-section, wherein the first flow cross-section corresponds to a flow cross-section at the radially outer end of the first flow chamber, wherein the first flow cross-section differs to the second flow cross-section. 3. The gas turbine according to claim 2 wherein the second flow cross-section has a larger flow cross-section than the first flow cross-section. 4. The gas turbine according to claim 1, wherein the airfoil comprises an inner wall section which forms the first flow chamber, wherein the inner wall section comprises turbulence enhancing elements such that turbulences in the compressed fluid which is flowable through the first flow chamber are generated. 5. The gas turbine according to claim 1, wherein the first flow chamber of the airfoil comprises a first volume (V1), wherein the airfoil further comprises a second flow chamber with a second volume (V2), andwherein the second flow chamber is formed within the airfoil such that a part of the second quantity of the compressed fluid is flowable along a direction from the radially outer wall to the radially inner wall of the plenum chamber and/or along the direction from the radially inner wall to the radially outer wall of the plenum chamber. 6. The gas turbine according to claim 5, wherein the first flow chamber and the second flow chamber are formed inside the airfoil such that a ratio of the first volume (V1) of the first flow chamber to the second volume (V2) of the second flow chamber is more than 70 to 30. 7. The gas turbine according to claim 6 wherein the ratio of the first volume (V1) of the first flow chamber to the second volume (V2) of the second flow chamber is more than 80 to 20. 8. The gas turbine according to claim 6, wherein the second quantity of the compressed fluid comprises a majority of all compressed fluid generated by the compressor. 9. The gas turbine according to claim 6, further comprising an inlet conduit comprising: a conduit inlet configured to receive the compressed fluid directly from the compressor;a conduit outlet configured to deliver the second quantity of the compressed fluid directly to the airfoil. 10. The gas turbine according to claim 5, wherein the second flow chamber is fed by compressed fluid which first cooled a vane inner platform and/or a vane outer platform of the guide vane section. 11. The gas turbine according to claim 5, wherein the airfoil comprises a trailing edge, wherein the airfoil is formed such that a further predefined quantity of compressed fluid flowing through the second flow chamber exhausts into the exhaust section. 12. The gas turbine according to claim 5, wherein the airfoil comprises a dividing wall which separates the first flow chamber and the second flow chamber,wherein the dividing wall comprises at least one through-hole configured to guide a predefined quantity of the second quantity of the compressed fluid flowing through the first flow chamber to the second flow chamber. 13. The gas turbine according to claim 1, further comprising a rotor blade section comprising a blade inner platform and a blade airfoil,wherein the rotor blade section is located downstream and adjacent to the guide vane section, andwherein the rotor blade section is coupled to the guide vane section such that compressed fluid is collected from compressed fluid used to cool a vane inner platform of the guide vane section and is routed to the blade inner platform and the blade airfoil of the rotor blade section. 14. The gas turbine according to claim 1, wherein the combustion chamber is a can-type combustion chamber or an annular-type combustion chamber. 15. A method for guiding compressed fluid in a gas turbine, the method comprising generating a compressed fluid by a compressor,injecting a first quantity of the compressed fluid into a plenum chamber at a radially inner wall of the plenum chamber which is coupled to the compressor,guiding a combustion gas against an airfoil of a guide vane section,wherein the guide vane section is coupled to an exhaust section of a combustion chamber through which exhaust section the combustion gas exhausts, wherein the exhaust section and the guide vane section are housed inside the plenum chamber, andguiding a second quantity of the compressed fluid through a first flow chamber of the airfoil of the guide vane section from the compressor in a direction from the radially inner wall to a radially outer wall of the plenum chamber and then the through a diffuser that is directly attached to a radially outer end of the first flow chamber before discharging the second quantity of the compressed fluid from the diffuser into the plenum chamber in a radially outward direction,wherein the second quantity of the compressed fluid is larger than the first quantity of the compressed fluid.

이 특허에 인용된 특허 (22)

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Compressor air provided to combustion chamber plenum and turbine guide vane

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Compressor air provided to combustion chamber plenum and turbine guide vane

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이 특허에 인용된 특허 (22)

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