IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0540890
(2006-09-29)
|
등록번호 |
US-7571735
(2009-08-25)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Gas Turbine Efficiency Sweden AB
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
2 |
초록
▼
A nozzle assembly for cleaning turbines includes an offline cleaning nozzle and a pair of online cleaning nozzles. The offline cleaning nozzle directs cleaning fluid towards the inlet of turbine. The online cleaning nozzles direct a cleaning fluid in a fan-shaped pattern in a direction substantially
A nozzle assembly for cleaning turbines includes an offline cleaning nozzle and a pair of online cleaning nozzles. The offline cleaning nozzle directs cleaning fluid towards the inlet of turbine. The online cleaning nozzles direct a cleaning fluid in a fan-shaped pattern in a direction substantially parallel to the direction of air flow within the turbine's inlet air duct, and intersecting with each other. The longest dimension of the fan-shaped spray pattern is substantially parallel to the direction of air flow within the duct.
대표청구항
▼
What is claimed is: 1. A nozzle assembly for cleaning turbines, the nozzle assembly installed in a nozzle opening on a wall of an inlet air duct of a turbine facing a compressor inlet of the turbine, the nozzle assembly comprising: a nozzle body; an offline washing nozzle comprising a nozzle head a
What is claimed is: 1. A nozzle assembly for cleaning turbines, the nozzle assembly installed in a nozzle opening on a wall of an inlet air duct of a turbine facing a compressor inlet of the turbine, the nozzle assembly comprising: a nozzle body; an offline washing nozzle comprising a nozzle head and disposed on an end of the nozzle body, the offline washing nozzle being structured and positioned to direct a cleaning liquid towards the compressor inlet of the turbine in a direction substantially parallel with airflow within the inlet air duct in an immediate vicinity of the offline nozzle head; at least one online washing nozzle, each of the at least one online washing nozzles comprising a nozzle head and disposed on the end of the nozzle body, each of the at least one online washing nozzles being structured and positioned to direct a cleaning liquid substantially perpendicular to a direction of airflow within the inlet air duct in an immediate vicinity of the online nozzle heads; and means for selectively supplying the cleaning liquid to either the offline washing nozzle or to the at least one online washing nozzle while resisting fluid flow to the other of the offline washing nozzle and the at least one online washing nozzle. 2. The nozzle assembly according to claim 1, further comprising: an offline liquid feed line in communication with the offline washing nozzle; an online liquid feed line in communication with the at least one online washing nozzle; a liquid supply line in communication with an outlet of a pump; and wherein the means for selectively supplying liquid to either the offline washing nozzle or the at least one online washing nozzle include a three way valve having an inlet in communication with the liquid supply line, a first outlet in communication with the offline liquid feed line, and a second outlet in communication with the online liquid feed line. 3. The nozzle assembly according to claim 2, further comprising a pressure switch operatively connected to the three way valve, the pressure switch being structured to actuate the three way valve to direct fluid to the offline liquid feed line when liquid pressure within the liquid supply line is below a predetermined pressure, and to actuate the three way valve to direct fluid to the online liquid feed line when liquid pressure within the liquid supply line is above the predetermined pressure. 4. The nozzle assembly according to claim 3, wherein the pump is structured to selectively supply liquid to the liquid supply line at either a pressure below the predetermined pressure, or at a pressure above the predetermined pressure; whereby switching the pressure provided by the pump actuates the three-way valve. 5. The nozzle assembly according to claim 3, wherein the pressure switch is included within the three way valve. 6. The nozzle assembly according to claim 3, wherein the pump has an operating pressure between about 40 bar and about 140 bar. 7. The nozzle assembly according to claim 6, wherein the predetermined pressure level is between about 0.5 and about 0.9 times the operating pressure of the pump. 8. The nozzle assembly according to claim 2, further comprising a solenoid operatively connected to the three way valve, the solenoid being structured to actuate the three way valve to direct fluid to the offline liquid feed line, and to actuate the three way valve to direct fluid to the online liquid feed line, the solenoid being operatively connected to a programmable logic controller. 9. The nozzle assembly according to claim 1, wherein each of the at least one online washing nozzles defines an elongated opening therein. 10. The nozzle assembly according to claim 9, wherein the elongated opening is selected from the group consisting of ellipsoidal, elliptical, and rectangular. 11. The nozzle assembly according to claim 9, wherein a longest dimension of the opening defined in each of the at least one online washing nozzles is oriented substantially parallel to a direction of air flow when the nozzle is installed in a nozzle opening of an inlet air duct of a turbine. 12. The nozzle assembly according to claim 1, wherein the at least one online cleaning nozzle includes two online cleaning nozzles. 13. The nozzle assembly according to claim 12, wherein the two online cleaning nozzles are structured to discharge cleaning sprays having generally intersecting paths. 14. The nozzle assembly according to claim 13, wherein each online washing nozzle defines an elongated opening therein. 15. The nozzle assembly according to claim 14, wherein a longest dimension of the opening defined in each online washing nozzle is oriented substantially parallel to a direction of air flow when the nozzle is installed in a nozzle opening of an inlet air duct of a turbine. 16. The nozzle assembly according to claim 1, wherein the nozzle assembly is structured to produce droplets ranging in size from about 80 μm to about 250 μm. 17. A dual nozzle assembly for cleaning turbines, the dual nozzle assembly installed on a wall of an inlet air duct and comprising: a nozzle body; an offline washing nozzle comprising a nozzle head and disposed on an end of the nozzle body, the offline washing nozzle structured and positioned to direct a cleaning liquid towards an inlet of a turbine in a direction substantially parallel with airflow within the inlet air duct in an immediate vicinity of the offline nozzle head; at least two online washing nozzles, each of the at least two online washing nozzles comprising a nozzle head and disposed on the end of the nozzle body, the online washing nozzles structured and positioned to direct a cleaning liquid in an intersecting path that is substantially perpendicular to a direction of airflow within the inlet air duct in an immediate vicinity of each of the online nozzle heads; means for selectively supplying liquid to either the offline washing nozzle or to the online washing nozzles while resisting fluid flow to the other of the offline washing nozzle or the online washing nozzles. 18. The dual nozzle assembly according to claim 17, wherein a pump supplies the cleaning liquid to the dual nozzle assembly, and wherein the pump is controlled by a control unit that implements computational fluid dynamic transfer analysis to determine the amount of liquid to supply. 19. The dual nozzle assembly according to claim 17, wherein the offline washing nozzle comprises a circular opening structured to atomize the cleaning liquid, wherein the atomized cleaning liquid is in a shape of (i) a conical spray pattern, (ii) a filled cone spray pattern, or (iii) a flat fan spray pattern. 20. The dual nozzle assembly according to claim 17, wherein the at least two online washing nozzles each comprise an elongated opening structured to atomize the cleaning liquid, wherein the atomized cleaning liquid is in a shape of a flat fan spray pattern. 21. The dual nozzle assembly according to claim 20, wherein the atomized cleaning liquid comprises droplets sized between 80 and 250 μm in diameter.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.