Patent
Wind turbine generator including air-cooled heat exchanger
| العنوان: | Wind turbine generator including air-cooled heat exchanger |
|---|---|
| Patent Number: | 8,585,358 |
| تاريخ النشر: | November 19, 2013 |
| Appl. No: | 13/042987 |
| Application Filed: | March 08, 2011 |
| مستخلص: | Provided is a wind turbine generator in which the intake air temperature of an air-cooled heat exchanger disposed in a nacelle is decreased to allow efficient heat exchange. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power drives a generator installed inside a nacelle, the nacelle being installed at the upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed inside the nacelle, wherein an air-cooled heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with air is provided in a region separate from nacelle air. |
| Inventors: | Matsuo, Takeshi (Tokyo, JP); Okano, Yasushi (Tokyo, JP); Numajiri, Tomohiro (Tokyo, JP); Nakamura, Taisuke (Tokyo, JP); Gotou, Chuuhachi (Tokyo, JP); Hirai, Shigeto (Tokyo, JP); Sato, Shinsuke (Tokyo, JP) |
| Assignees: | Mitsubishi Heavy Industries, Ltd. (Tokyo, JP) |
| Claim: | 1. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power with wind turbine blades drives a generator installed inside a nacelle, the nacelle being installed at an upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed in the nacelle, wherein an air-cooled heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with air is provided in a region separate from nacelle air; the region separate from the nacelle air is an air intake-exhaust section formed to communicate with an interior of the nacelle via an opening provided in a wall surface of the nacelle; and a heat insulator is disposed on a wall surface of the air intake-exhaust section. |
| Claim: | 2. The wind turbine generator according to claim 1 , further comprising a sound absorbing chamber, in the air intake-exhaust section, formed by changing a cross-sectional area thereof. |
| Claim: | 3. The wind turbine generator according to claim 1 , further comprising a droplet sump in which a predetermined amount of droplets can be held below the air-cooled heat exchanger provided in the air intake-exhaust section. |
| Claim: | 4. The wind turbine generator according to claim 1 , further comprising an air intake duct and an exhaust duct that communicate with the interior of the nacelle via the opening in the wall surface of the nacelle, in which the air-cooled heat exchanger is disposed, wherein the air intake duct or the exhaust duct is of a separated type. |
| Claim: | 5. The wind turbine generator according to claim 4 , wherein the air intake duct is disposed on an upstream side of the air-cooled heat exchanger, and the exhaust duct is disposed on a downstream side of the air-cooled heat exchanger. |
| Claim: | 6. The wind turbine generator according to claim 5 , wherein the upstream side and the downstream side are separated over the air-cooled heat exchanger. |
| Claim: | 7. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power drives a generator installed inside a nacelle, the nacelle being installed at an upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed in the nacelle, the wind turbine generator comprising: a refrigerant heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with a refrigerant; and an air-cooled heat exchanger that cools the refrigerant by heat exchange with- air, wherein the air-cooled heat exchanger is provided in a region separate from nacelle air, wherein the region separate from the nacelle air is an air intake-exhaust section formed to communicate with an interior of the nacelle via an opening provided in a wall surface of the nacelle; and a heat insulator is disposed on a wall surface of the air intake-exhaust section. |
| Claim: | 8. The wind turbine generator according to claim 7 , further comprising a droplet sump in which a predetermined amount of droplets can be held below the air-cooled heat exchanger provided in the air intake-exhaust section. |
| Claim: | 9. The wind turbine generator according to claim 7 , further comprising an air intake duct and an exhaust duct that communicate with the interior of the nacelle via the opening in the wall surface of the nacelle and in which the air-cooled heat exchanger is disposed, wherein the air intake duct or the exhaust duct is of a separated type. |
| Claim: | 10. The wind turbine generator according to claim 9 , wherein the air intake duct is disposed on an upstream side of the air-cooled heat exchanger, and the exhaust duct is disposed on a downstream side of the air-cooled heat exchanger. |
| Claim: | 11. The wind turbine generator according to claim 10 , wherein the upstream side and the downstream side are separated over the air-cooled heat exchanger. |
| Claim: | 12. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power drives a generator installed inside a nacelle, the nacelle being installed at an upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed in the nacelle, the wind turbine generator comprising: a refrigerant heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with a refrigerant; and an air-cooled heat exchanger that cools the refrigerant by heat exchange with air, wherein the air-cooled heat exchanger is provided in a region separate from nacelle air; and a sound absorbing chamber, in the air intake-exhaust section, formed by changing a cross-sectional area thereof. |
| Claim: | 13. The wind turbine generator according to claim 12 , further comprising a droplet sump in which a predetermined amount of droplets can be held below the air-cooled heat exchanger provided in the air intake-exhaust section. |
| Claim: | 14. The wind turbine generator according to claim 12 , further comprising an air intake duct and an exhaust duct that communicate with an interior of the nacelle via an opening in a wall surface of the nacelle and in which the air-cooled heat exchanger is disposed, wherein the air intake duct or the exhaust duct is of a separated type. |
| Claim: | 15. The wind turbine generator according to claim 14 , wherein the air intake duct is disposed on an upstream side of the air-cooled heat exchanger, and the exhaust duct is disposed on a downstream side of the air-cooled heat exchanger. |
| Claim: | 16. The wind turbine generator according to claim 15 , wherein the upstream side and the downstream side are separated over the air-cooled heat exchanger. |
| Current U.S. Class: | 415/176 |
| Patent References Cited: | 7057305 June 2006 Kruger-Gotzmann et al. 7161260 January 2007 Kruger-Gotzmann et al. 7967550 June 2011 Grevsen et al. 8047774 November 2011 Bagepalli 8052383 November 2011 Frokjaer 8082748 December 2011 Matsuo et al. 2008/0298964 December 2008 Rimmen 2010/0061853 March 2010 Bagepalli 101235801 August 2008 202004020094 April 2005 04353228 December 1992 2006313055 November 2006 2009-185641 August 2009 WO 2008092449 August 2008 WO 2010/024650 March 2010 |
| Other References: | JPO, Notice of Allowance for JP 2010-060376, Jul. 24, 2012. cited by applicant |
| Primary Examiner: | Waks, Joseph |
| Attorney, Agent or Firm: | Kanesaka, Manabu Berner, Kenneth M. Hauptman, Benjamin J. |
| رقم الانضمام: | edspgr.08585358 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |