System and method for augmenting power output from a gas turbine engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-003/30
F02C-003/20
F02C-007/00
출원번호
US-0224306
(2005-09-13)
등록번호
US-7428818
(2008-09-30)
발명자
/ 주소
Hjerpe,Carl Johan
출원인 / 주소
Gas Turbine Efficiency AB
대리인 / 주소
DLA Piper US LLP
인용정보
피인용 횟수 :
10인용 특허 :
6
초록▼
The present invention discloses a method and system for augmenting shaft output of stationary gas turbines that can be used in multiple modes of operation. The system comprises a washing unit (25, 27, 28) adapted to inject a spray (26) of atomized liquid so as to impinge on the compressor blades (12
The present invention discloses a method and system for augmenting shaft output of stationary gas turbines that can be used in multiple modes of operation. The system comprises a washing unit (25, 27, 28) adapted to inject a spray (26) of atomized liquid so as to impinge on the compressor blades (12) in order to wet said blades (12), thereby obtaining a release of fouling material from said blades (12); and at least one liquid injection unit (21, 23, 24, 29, 210, 212, 214, 215, 216) adapted to inject a spray (22, 211, 213) of atomized liquid into an air stream of said turbine duct (101) or at the gas turbine (10) in order to increase a mass flow of said air flow, wherein the power output from said gas turbine engine can be augmented. With the invention follows also benefits such as fuel savings and improved environmental performance by reduction of emissions.
대표청구항▼
The invention claimed is: 1. A system for augmenting power output from a gas turbine engine, said gas turbine engine comprising a turbine duct arranged at a gas turbine including a combustor and a compressor having a number of compressor blades, characterized by: a pump unit comprising a variable s
The invention claimed is: 1. A system for augmenting power output from a gas turbine engine, said gas turbine engine comprising a turbine duct arranged at a gas turbine including a combustor and a compressor having a number of compressor blades, characterized by: a pump unit comprising a variable speed pump adapted to increase a pressure of a liquid; a control unit connected to said pump unit via a signal feed and adapted to control the speed of said pump; a washing unit connected to said pump unit via a feed line, said washing unit comprising at least one nozzle and at least one valve connected to said pump unit via said feed line and to said at least one nozzle via a conduit and being adapted to control a flow rate of liquid being fed to said at least one nozzle, said at least one nozzle of said washing unit being adapted to inject a spray of atomized liquid so as to impinge on the compressor blades in order to wet said blades, thereby obtaining a release of fouling material from said blades; and at least one liquid injection unit comprising at least one nozzle and at least one valve connected to said pump unit via said feed line and to said at least one nozzle via a conduit and being adapted to control a flow rate of liquid being fed to said at least one nozzle, said at least one nozzle of said liquid injection unit being adapted to inject a spray of atomized liquid into an air stream of said turbine duct or at said gas turbine in order to increase a mass flow of said air flow, wherein the power output from said gas turbine engine is augmented. 2. The system according to claim 1, further comprising a monitoring unit adapted to monitor environmental conditions and being connected to said control unit. 3. The system according to claim 2, wherein said monitoring unit comprises at least one from the group of: a dry bulb temperature measuring device, an air humidity measuring device, and wet bulb temperature measuring device. 4. The system according to claim 1, further comprising a liquid collecting unit connected to said pump unit and including a liquid processing unit, said collecting unit being adapted to collect liquid emanating from said gas turbine engine and said processing unit being adapted to purify said collected liquid. 5. The system according to claim 1, wherein said control unit is adapted to control said at least one valve of said washing unit and said at least one valve of said liquid injection unit. 6. The system according to claim 1, wherein said at least one liquid injection, unit comprises a nozzle holder comprising a plurality of nozzles and being arranged upstream a compressor inlet face and a valve connected to said nozzle holder via a conduit and adapted to control a flow rate of liquid being fed to said plurality of nozzles, wherein said nozzles are adapted to inject a spray of atomized liquid into an air stream of said turbine duct such that substantially all droplets of said spray evaporate prior to entering said compressor. 7. The system according to claim 6, wherein said plurality of nozzles are adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 8. The system according to claim 7, wherein said plurality of nozzles are adapted to atomize said liquid into droplets in the range of 1-50 microns. 9. The system according to claim 1, wherein said washing unit is adapted to operate during operation of said engine and wherein said at least one nozzle of said washing unit is arranged upstream said compressor and is adapted to inject a spray of atomized liquid at a velocity being sufficiently high to penetrate said air stream produced during operation of said engine. 10. The system according to claim 9, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 11. The system according to claim 10, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets in the range of 50-500 microns. 12. The system according to claim 1, wherein said washing unit is adapted to operate when said engine is shut down and wherein said at least one nozzle of said washing unit is arranged upstream said compressor and is directed towards an inlet of said compressor. 13. The system according to claim 12, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 14. The system according to claim 12, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets in the range of 50-500 microns. 15. The system according to claim 1, wherein said at least one liquid injection unit comprises at least one nozzle arranged adjacent to said compressor and a valve connected to said nozzle via a conduit and adapted to control a flow rate of liquid being fed to said nozzle, wherein said nozzle is adapted to inject liquid into the compressor gas path. 16. The system according to claim 15, wherein said at least one nozzle is arranged upstream of an inlet of said compressor. 17. The system according to claim 15, wherein said at least one nozzle is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 18. The system according to claim 15, wherein said at least one nozzle is adapted to atomize said liquid into droplets in the range of 1-50 microns. 19. The system according to claim 1, wherein said at least one liquid injection unit comprises at least one nozzle arranged adjacent to said combustor and a valve connected to said nozzle via a conduit and adapted to control a flow rate of liquid being fed to said nozzle. 20. The system according to claim 19, wherein said at least one nozzle is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 21. The system according to claim 19, wherein said at least one nozzle is adapted to atomize said liquid into droplets in the range of 20-500 microns. 22. A method for augmenting power output from a gas turbine engine, said gas turbine engine comprising a turbine duct arranged at a gas turbine including a combustor and a compressor having a number of compressor blades, characterized by the steps of: increasing a pressure of a liquid using a pump unit comprising a variable speed pump; controlling a speed of said pump unit using a control unit connected to said pump unit via a signal feed; supplying a liquid to a washing unit connected to said pump unit via a feed line, said washing unit comprising at least one nozzle and at least one valve connected to said pump unit via said feed 1ine and to said at least one nozzle via a conduit; controlling a flow rate of liquid being supplied to said at least one nozzle using said valve; injecting a spray of atomized liquid so as to impinge on the compressor blades in order to wet said blades, thereby obtaining a release of fouling material from said blades, using said at least one nozzle of said washing unit; supplying a liquid to at least one liquid injection unit connected to said pump unit via a feed line, said at least one liquid injection unit comprising at least one nozzle and at least one valve connected to said pump unit via said feed line and to said at least one nozzle via a conduit; controlling a flow rate of liquid being supplied to said at least one nozzle using said valve; and injecting a spray of atomized liquid into an air stream of said turbine duct or at said gas turbine using said at least one nozzle of said liquid injection unit in order to increase a mass flow of said airflow, wherein the power output from said gas turbine engine is augmented. 23. The method according to claim 22, further comprising the steps of: monitoring environmental conditions using a monitoring unit; and communicating said monitored conditions to said control unit. 24. The method according to claim 23, wherein, the step of monitoring comprises at least one of the steps of: measuring a dry bulb temperature; measuring an air humidity; and measuring a wet bulb temperature. 25. The method according to claim 22, further comprising the steps of: collecting liquid emanating from said gas, turbine engine; and purifying said collected liquid. 26. The method according to claim 22, further comprising the steps of: controlling said at least one valve of said washing unit; and controlling said at least one valve of said liquid injection unit. 27. The method according to claim 22, wherein the step of injecting a spray of atomized liquid from a plurality of nozzles into an air stream of said turbine duct in order to increase a mass flow of said air flow comprises the step of: injecting a spray of atomized liquid into an air stream of said turbine duct such that substantially all droplets of said spray evaporate prior to entering said compressor. 28. The method according to claim 27, wherein said plurality of nozzles are adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 29. The method according to claim 27, wherein said plurality of nozzles are adapted to atomize said liquid into droplets in the range of 1-50 microns. 30. The method according to claim 22, wherein the step of injecting a spray of atomized liquid so as to impinge on the compressor blades in order to wet said blades comprises the step of: injecting a spray of atomized liquid at a velocity being sufficiently high to penetrate said air stream produced during operation of said engine. 31. The method according to claim 30, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 32. The method according to claim 30, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets in the range of 50-500 microns. 33. The method according to claim 22, wherein said washing unit is adapted to operate when said engine is shut down and wherein said at least one nozzle of said washing unit is arranged upstream said compressor and is directed towards an inlet of said compressor. 34. The method according to claim 33, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 35. The method according to claim 33, wherein said at least one nozzle of said washing unit is adapted to atomize said liquid into droplets in the range of 50-500 microns. 36. The method according to claim 22, wherein the step of injecting a spray of atomized liquid into an air stream of said turbine duct in order to increase a mass flow of said air flow comprises the step of: injecting liquid into the compressor gas path. 37. The method according to claim 36, wherein said at least one nozzle is arranged upstream of an inlet of said compressor. 38. The method according to claim 36, wherein said at least one nozzle is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 39. The method according to claim 36, wherein said at least one nozzle is adapted to atomize said liquid into droplets in the range of 1-50 microns. 40. The method according to claim 22, wherein said at least one liquid injection unit comprises at least one nozzle arranged adjacent to said combustor and a valve connected to said nozzle via a conduit and adapted to control a flow rate of liquid being fed to said nozzle. 41. The method according to claim 40, wherein said at least one nozzle is adapted to atomize said liquid into droplets at a pressure within the range of 35-140 bar. 42. The method according to claim 40, wherein said at least one nozzle is adapted to atomize said liquid into droplets in the range of 20-500 microns. 43. Computer program product loadable into a memory of a digital computer device, including software code portions for performing steps of the method of claim 22 when said computer program product is run on said computer device.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Kuesters, Bernhard; Moenig, Reinhard, Axial compressor and method of cleaning an axial compressor.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.