[특허]System and method for removing heat from a turbomachine

General Electric Company

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

System and method for removing heat from a turbomachine

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-025/26 F01D-025/14
출원번호	US-0092241 (2011-04-22)
등록번호	US-9151182 (2015-10-06)
발명자 / 주소	Miller, Harold Edward
출원인 / 주소	General Electric Company
대리인 / 주소	Cusick, Ernest G.
인용정보	피인용 횟수 : 0 인용 특허 : 6

초록

The present invention provides systems and methods of removing heat from internal areas of a turbomachine. Embodiments of the present invention may incorporate a suction device and a control system. Operatively, these elements may collectively discharge remnants of a heated fluid and/or gas from those internal areas.

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1. A system comprising: a casing which encloses a rotating body that is rotated by a working fluid;wherein the casing comprises an upper half that covers an upper portion of the rotating body, and a lower half that covers a lower portion of the rotating body;a heat removal system that comprises a suction device and a discharge duct, wherein a first end of the discharge duct is connected to the upper half of the casing and a second end of the discharge duct is connected to the suction device;a flow path located between portions of the casing and the rotating body, wherein the working fluid flows within the flow path which engages the discharge duct;further comprising an extraction port located on the casing, wherein the discharge duct is connected to the extraction port;and, wherein the flow path engages the extraction port, allowing the residual working fluid to discharge through the extraction port;and further comprising a multi-way valve serially connected in the discharge duct between the extraction port and the suction device; andwherein the multi-way valve directs flow, exiting the extraction port, towards either the suction device or to a vent;a controller configured to after a combustion process ends, operate the suction device to replace the residual working fluid in the flow path with air. 2. The system of claim 1, wherein the suction device comprises at least one of: a blower, a fan, or a vacuum. 3. The system of claim 1, wherein the discharge system comprises a discharge port located on an outer surface of the casing, wherein the discharge duct is connected to the discharge port. 4. The system of claim 1 further comprising an airstream restrictor comprising a surface that is connected near an upstream end of a compressor, wherein the airstream restrictor reduces a quantity of an airstream ingested by a compressor. 5. The system of claim 1 further comprising a temperature detector connected to the casing, wherein the temperature detector measures a temperature of the casing. 6. The system of claim 1, wherein the rotating body comprises a compressor section and a turbine section, wherein both sections comprise rotating components mounted on a periphery of the rotating body. 7. The system of claim 6 further comprising a combustion section comprising components that combust a mixture of a compressed airstream and a fuel to create the working fluid. 8. The system of claim 7, wherein the casing encloses the compressor section, the turbine section, and the combustion section. 9. The system of claim 1, wherein the suction device removes combustibles from internal areas of the casing. 10. The system of claim 1 further comprising an exhaust flow restrictor comprising a surface that is connected near an exhaust duct, wherein the exhaust flow restrictor reduces a quantity of an airstream flowing upstream, through the exhaust duct, to the flow path. 11. A method comprising: providing a gas turbine comprising: an inlet section comprising components which receive an airstream;a compressor section and a turbine section, which are mounted on a rotor, wherein rotating components of the compressor section and turbine section are mounted on a periphery of the rotor;a combustion section comprising components which combusts a fuel and the airstream to create a working fluid that rotates the rotor; anda casing that covers the rotor, wherein the casing comprises an upper half that encloses an upper portion of the rotor, and a lower half that encloses a lower portion of the rotor; anda flow path located between the casing and the rotor, wherein the working fluid flows through the flow path;providing a heat removal system that comprises a suction device and a discharge duct, wherein a first end of the discharge duct is connected to the upper half of the casing and engages the flow path, and a second end of the discharge duct is connected to the suction device; andproviding a control system comprising a processor that performs the steps of: determining whether a combustion process is extinguished;determining whether a speed of the rotor is within a range; andoperating the suction device to draw residual working fluid out of the flow path via the discharge duct;wherein the casing comprises an extraction port which connects to the discharge port;wherein the heat removal system comprises a multi-port valve serially connected in the discharge duct between the extraction port and the suction device;further comprising operating the multi-port valve to direct the flow in the discharge duct towards either the suction device or towards a ventwherein the suction device operatively replaces the residual working fluid with air. 12. The method of claim 11 further comprising the step of modulating an airstream restrictor to reduce the flowrate of the airstream entering the inlet. 13. The method of claim 11 further comprising the step of monitoring an associated parameter which is related to a temperature of the residual working fluid. 14. The method of claim 13 further comprising the step of stopping the heat removal system if the associated parameter is within a range. 15. The method of claim 13, wherein the associated parameter comprises at least one of: a wheelspace temperature; a temperature measured on a surface of the casing; a temperature of the residual working fluid discharged from the flow path; or chemical properties of the residual working fluid. 16. A system comprising: a casing which encloses a rotating body that is rotated by a working fluid;wherein the casing comprises an upper half that covers an upper portion of the rotating body, and a lower half that covers a lower portion of the rotating body;a heat removal system that comprises a suction device integrated with the upper half of the casing;a flow path located between portions of the casing and the rotating body, wherein the working fluid flows within the flow path which engages the discharge duct;further comprising an extraction port located on the casing, wherein the suction device is connected to a downstream side of the extraction port;wherein the flow path engages the extraction port, allowing the residual working fluid to discharge through the extraction port;further comprising a multi-way valve serially connected between the extraction port and the suction device;wherein the multi-way valve directs flow, exiting the extraction port, towards either the suction device or to a vent; anda control system configured to after a combustion process ends, operate the suction device to draw residual working fluid out of the casing. 17. The system of claim 16, wherein the suction device is mounted directly on the casing.

이 특허에 인용된 특허 (6)

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특허 상세정보

System and method for removing heat from a turbomachine

초록

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특허 상세정보

System and method for removing heat from a turbomachine

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이 특허에 인용된 특허 (6)

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IPC 상세정보(version : 201201)

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