GB1368045A - Water-cooled electrical machine - Google Patents
Water-cooled electrical machineInfo
- Publication number
- GB1368045A GB1368045A GB736873A GB736873A GB1368045A GB 1368045 A GB1368045 A GB 1368045A GB 736873 A GB736873 A GB 736873A GB 736873 A GB736873 A GB 736873A GB 1368045 A GB1368045 A GB 1368045A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- pump
- chamber
- pressure
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 11
- 239000007789 gas Substances 0.000 abstract 5
- 239000000498 cooling water Substances 0.000 abstract 4
- 238000007789 sealing Methods 0.000 abstract 4
- 238000004804 winding Methods 0.000 abstract 4
- 238000001816 cooling Methods 0.000 abstract 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
Abstract
1368045 Cooling electric machines KRAFTWERK UNION AG 14 Feb 1973 [17 Feb 1972] 7368/73 Heading F4U [Also in Division H2] In an electrical machine, e.g. turbo-generator, having water-cooled stator and rotor windings 10, 12 and a shaft pump 7, the windings are connected in a water cooling circuit which further includes a cooling water connection head 5 surrounding the pump 7 and defining a cooling water inlet chamber 4 on one side of the pump and a cooling water outlet chamber 14 and a pressure-reducing water chamber 17 on the other side of the pump there being a sealing device 16 surrounding the machine shaft 6 and disposed between the latter chambers 14, 17 in order to minimize water leakage therebetween, a main cooling water container 1 connected between the inlet and outlet chambers 4, 14 and which in use of the machine is provided with an elevated pressure gas cushion 2, and an intermediate water container 19 which is directly connected to the pressure-reducing chamber 17 to receive therefrom water which has leaked past the sealing device 16 and is connected to the main water container 1 through a pump 28 and in which during such use is provided a gas cushion 20 which is at a pressure slightly higher than atmospheric but lower than that of main water container gas cushion 2. This circuit minimizes the leakage of water from the connection head 5 whilst permitting the use of simple sealing devices, e.g. those operating without physical contact. As shown, a cooling device 9 is interposed in the conduit 8 between the pump and windings, the water being fed to the rotor winding 16 through an axial bore 11 in the shaft 6. The gas cushion 2 is provided by a hydrogen supply conduit 29 and a pressure-reducing valve 30, and communicates via a further pressurereducing valve 31 with the gas cushion 20 whose pressure is limited by a safety valve 32. Water which leaks from the chamber 17 through a further sealing device 21 into a water chamber 22 and is oxygen enriched is fed by a return pump 25 from a collecting vessel 23 via an oxygenremoving device 26 containing a palladium catalyst back to the container 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2207342A DE2207342C3 (en) | 1972-02-17 | 1972-02-17 | Device for cooling electrical machines, in particular turbo generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1368045A true GB1368045A (en) | 1974-09-25 |
Family
ID=5836156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB736873A Expired GB1368045A (en) | 1972-02-17 | 1973-02-14 | Water-cooled electrical machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3835919A (en) |
| JP (1) | JPS5316881B2 (en) |
| CH (1) | CH549304A (en) |
| DE (1) | DE2207342C3 (en) |
| GB (1) | GB1368045A (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2344069C2 (en) * | 1973-08-31 | 1975-04-30 | Kraftwerk Union Ag, 4330 Muelheim | Device for supplying the cooling channels of rotors of electrical machines with cooling water |
| US4047561A (en) * | 1974-10-18 | 1977-09-13 | General Electric Company | Cooling liquid de-gassing system |
| US3989102A (en) * | 1974-10-18 | 1976-11-02 | General Electric Company | Cooling liquid de-gassing system |
| US4073607A (en) * | 1976-07-29 | 1978-02-14 | Ingersoll-Rand Company | Gas compressor system |
| DE3043992A1 (en) * | 1980-11-21 | 1982-07-22 | Mitsubishi Denki K.K., Tokyo | Outlet system for coolant of rotating machine - eliminates cavitation using toroidal middle chamber |
| DE3043884A1 (en) * | 1980-11-21 | 1982-07-08 | Mitsubishi Denki K.K., Tokyo | Water cooling system for rotor of turbogenerator - has configuration of outlet lines, outlet chambers, seals and outlet pipes |
| US4358937A (en) * | 1980-12-01 | 1982-11-16 | Mitsubishi Denki Kabushiki Kaisha | Device for conducting cooling liquid in and out of liquid cooled rotor type rotary electric machine |
| US4341093A (en) * | 1980-12-01 | 1982-07-27 | Mitsubishi Denki Kabushiki Kaisha | Device for leading cooling liquid out of rotary electric machine with liquid cooled rotor |
| US4364241A (en) * | 1980-12-02 | 1982-12-21 | Mitsubishi Denki Kabushiki Kaisha | Device for draining cooling liquid from rotary electric machine with liquid cooled rotor |
| US4873832A (en) * | 1988-12-08 | 1989-10-17 | Ncr Corporation | Liquid level control for a cryogenic fluid |
| US5196746A (en) * | 1991-10-18 | 1993-03-23 | Sundstrand Corporation | Generator auxiliary forced cooling and lubrication system and method |
| US5418412A (en) * | 1994-02-15 | 1995-05-23 | Lucas Aerospace Power Equipment Corporation | Drive disconnect for oil-cooled electrical generator |
| US5789824A (en) * | 1996-05-02 | 1998-08-04 | Chrysler Corporation | Cooling of turboalternator for hybrid motor vehicle |
| PL191243B1 (en) | 1998-01-26 | 2006-04-28 | Siemens Ag | Generator cooling system and method |
| US6371157B1 (en) | 2000-09-29 | 2002-04-16 | Thales Broadcast & Multimedia, Inc. | Method, system and computer program product for self-draining plumbing for liquid-cooled devices |
| US7462963B2 (en) * | 2004-11-30 | 2008-12-09 | Nissan Motor Co., Ltd. | Motor cooling device and cooling method |
| US20120205994A1 (en) * | 2011-02-11 | 2012-08-16 | Hamilton Sundstrand Corporation | Flooded variable speed electric machine with variable flow |
| CN103363075A (en) * | 2012-03-28 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Integrated cooling system for fully mechanized mining faces |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970232A (en) * | 1958-10-21 | 1961-01-31 | Gen Electric | Conductor-cooled generator |
-
1972
- 1972-02-17 DE DE2207342A patent/DE2207342C3/en not_active Expired
-
1973
- 1973-02-14 GB GB736873A patent/GB1368045A/en not_active Expired
- 1973-02-16 CH CH231673A patent/CH549304A/en not_active IP Right Cessation
- 1973-02-16 JP JP1916673A patent/JPS5316881B2/ja not_active Expired
- 1973-02-20 US US00333703A patent/US3835919A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2207342C3 (en) | 1980-09-11 |
| JPS5316881B2 (en) | 1978-06-05 |
| DE2207342A1 (en) | 1973-08-30 |
| JPS4893903A (en) | 1973-12-04 |
| US3835919A (en) | 1974-09-17 |
| DE2207342B2 (en) | 1978-10-12 |
| CH549304A (en) | 1974-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |