CN103023254A - External exciter of generator with independent cooling system - Google Patents
External exciter of generator with independent cooling system Download PDFInfo
- Publication number
- CN103023254A CN103023254A CN2012105422956A CN201210542295A CN103023254A CN 103023254 A CN103023254 A CN 103023254A CN 2012105422956 A CN2012105422956 A CN 2012105422956A CN 201210542295 A CN201210542295 A CN 201210542295A CN 103023254 A CN103023254 A CN 103023254A
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- Prior art keywords
- exciter
- generator
- cooling system
- cooling water
- urceolus
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Abstract
The invention discloses an external exciter of a generator with an independent cooling system. The external exciter of the generator with the independent cooling system solves the existing technical problem that an exciter can not be cooled by an overall machine cooling system of a generator when the exciter of the generator needs to be placed externally. An exciter seat (4) is fixedly arranged on an exciter fixing tray (3) which is arranged on a rear end cover (1) of a generator main engine and extends outward. A rear shaft end (2) of a generator main engine rotator is sleeved with an exciter hollow shaft (5). Fan blade installing rings (8) and fan blades (10) are arranged on the outside surface of the rear end of the exciter hollow shaft (5). An exciter outer cylinder (12) and an exciter inner cylinder (13) are fixedly arranged on the exciter seat (4). A sealed S-shaped cooling water channel (14) is arranged between the exciter outer cylinder (12) and the exciter inner cylinder (13). The external exciter of the generator with the independent cooling system is simple in structure, convenient to maintain and good in cooling effect, and enables a motor to run reliably.
Description
Technical field
The present invention relates to a kind of exciter of generator, particularly a kind of exciter that is placed on the generator outside with independent cooling system.
Background technology
The exciter of general generator is built-in, and the cooling of exciter is to be finished by the cooling system of generator complete machine.And when the rotating speed of generator is higher, usually adopt the exciter of external, can avoid so the excessive critical speed of shaft that causes of distance between bearings too near actual speed, but the cooling of the exciter of this structure just can't be finished by the cooling system of generator complete machine.
Summary of the invention
The invention provides a kind of external exciter of the generator with independent cooling system, having solved exciter when generator needs the technical problem that the cooling of existing exciter can't lean on the cooling system of generator complete machine to realize when external.
The present invention is by the above problem of following solution:
A kind of external exciter of the generator with independent cooling system, comprise axle head behind generator main frame rear end cap and the generator main machine rotor, be provided with outwardly directed exciter fixed tray at generator main frame rear end cap, be fixedly installed seat for exciting dynamo at the exciter fixed tray, axle head and exciter hollow shaft sleeve are connected together behind the generator main machine rotor, be provided with exciter rotor at the exciter hollow shaft, be provided with exciter stator at seat for exciting dynamo, lateral surface is provided with the fan blade mounting circular ring in the rear end of exciter hollow shaft, inboard at the fan blade mounting circular ring is provided with blade, be provided with the axial ventilation road at exciter rotor, be fixedly installed the exciter urceolus at seat for exciting dynamo, in the exciter urceolus, be provided with the exciter inner core, between exciter urceolus and exciter inner core, be provided with the S shape cooling water channel of sealing, one end of S shape cooling water channel is communicated with the cooling water water inlet that arranges at the exciter urceolus, and the other end of S shape cooling water channel is communicated with the cooling water outlet that arranges at the exciter urceolus.
The fan blade mounting circular ring is that the rear end lateral surface by screw and exciter hollow shaft is fixed together.
The present invention is simple in structure, and is easy to maintenance, and the good cooling results of exciter makes the motor operation more reliable.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structure chart of seat for exciting dynamo internal cooling wind path of the present invention.
Embodiment
A kind of external exciter of the generator with independent cooling system, comprise axle head 2 behind generator main frame rear end cap 1 and the generator main machine rotor, be provided with outwardly directed exciter fixed tray 3 at generator main frame rear end cap 1, be fixedly installed seat for exciting dynamo 4 at exciter fixed tray 3, axle head 2 connects together with exciter hollow shaft 5 behind the generator main machine rotor, be provided with exciter rotor 6 at exciter hollow shaft 5, be provided with exciter stator 7 at seat for exciting dynamo 4, lateral surface is provided with fan blade mounting circular ring 8 in the rear end of exciter hollow shaft 5, be provided with blade 10 in the inboard of fan blade mounting circular ring 8, be provided with axial ventilation road 11 at exciter rotor 6, be fixedly installed exciter urceolus 12 at seat for exciting dynamo 4, in exciter urceolus 12, be provided with exciter inner core 13, between exciter urceolus 12 and exciter inner core 13, be provided with the S shape cooling water channel 14 of sealing, one end of S shape cooling water channel 14 is communicated with the cooling water water inlet 15 that arranges at exciter urceolus 12, and the other end of S shape cooling water channel 14 is communicated with the cooling water outlet 16 that arranges at exciter urceolus 12.
Fan blade mounting circular ring 8 is to be fixed together by the rear end lateral surface of screw 9 with exciter hollow shaft 5.
Seat for exciting dynamo integral body places the generator main frame non-driven-end bearing outside, is installed on the gusset of the end cap outside.The support shell of external exciter is the water jacket support that is welded into by exciter inner core 13 and exciter urceolus 12 two-layer stainless steel cylinders, have cooling water water inlet 15 and cooling water outlet 16 on the support, the water jacket inner chamber is separated the S shape cooling water channel 14 that forms sealing by along the circumferential direction uniform stainless steel gusset.Seat for exciting dynamo inside is confined space, all there is cover plate front and back, wherein the rear side cover plate can be the maintenance rectifying device provide convenience, rotary rectifier wheel hub back on the exciter rotor axle is welded with blade 10, be equivalent to a centrifugal fan, have axial ventilation hole on the exciter rotor iron core, the axial ventilation road is left at the yoke ring back equally, forms thus a complete inner ventilation system.During generator operation, axle driven rotary rectification wheel hub rotates, blade 10 produces blast drive exciter inner air and flows, the heat part that exciter produces is taken away by moving air, carry out heat exchange with the seat for exciting dynamo inwall again, another part heat is passed to inboard wall of base by heat exchange pattern by yoke ring, and two parts heat is taken away by the cooling water of water jacket inner chamber again, reaches the purpose of cooling exciter with this.
Claims (2)
1. external exciter with the generator of independent cooling system, comprise axle head (2) behind generator main frame rear end cap (1) and the generator main machine rotor, it is characterized in that, be provided with outwardly directed exciter fixed tray (3) at generator main frame rear end cap (1), be fixedly installed seat for exciting dynamo (4) at exciter fixed tray (3), axle head behind the generator main machine rotor (2) connects together with exciter hollow shaft (5), be provided with exciter rotor (6) at exciter hollow shaft (5), be provided with exciter stator (7) at seat for exciting dynamo (4), rear end lateral surface at exciter hollow shaft (5) is provided with fan blade mounting circular ring (8), be provided with blade (10) in the inboard of fan blade mounting circular ring (8), be provided with axial ventilation road (11) at exciter rotor (6), be fixedly installed exciter urceolus (12) at seat for exciting dynamo (4), in exciter urceolus (12), be provided with exciter inner core (13), between exciter urceolus (12) and exciter inner core (13), be provided with the S shape cooling water channel (14) of sealing, one end of S shape cooling water channel (14) is communicated with the cooling water water inlet (15) that arranges at exciter urceolus (12), and the other end of S shape cooling water channel (14) is communicated with the cooling water outlet (16) that arranges at exciter urceolus (12).
2. the external exciter of a kind of generator with independent cooling system according to claim 1 is characterized in that, fan blade mounting circular ring (8) is to be fixed together by the rear end lateral surface of screw (9) with exciter hollow shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105422956A CN103023254A (en) | 2012-12-14 | 2012-12-14 | External exciter of generator with independent cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105422956A CN103023254A (en) | 2012-12-14 | 2012-12-14 | External exciter of generator with independent cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103023254A true CN103023254A (en) | 2013-04-03 |
Family
ID=47971486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105422956A Pending CN103023254A (en) | 2012-12-14 | 2012-12-14 | External exciter of generator with independent cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103023254A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159090A (en) * | 1995-11-27 | 1997-09-10 | 株式会社日立制作所 | Totally-enclosed type motor |
| CN201091058Y (en) * | 2007-10-08 | 2008-07-23 | 南阳防爆集团有限公司 | High-capacity non-salient pole nest plate type synchronous generator |
| CN101924414A (en) * | 2010-08-06 | 2010-12-22 | 永济新时速电机电器有限责任公司 | Cutter motor and shield machine |
| JP2012016081A (en) * | 2010-06-29 | 2012-01-19 | Nishishiba Electric Co Ltd | Full-closed brushless rotation electrical machine with cooler |
| CN203056805U (en) * | 2012-12-14 | 2013-07-10 | 中船重工电机科技股份有限公司 | External generator exciter with independent cooling system |
-
2012
- 2012-12-14 CN CN2012105422956A patent/CN103023254A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159090A (en) * | 1995-11-27 | 1997-09-10 | 株式会社日立制作所 | Totally-enclosed type motor |
| CN201091058Y (en) * | 2007-10-08 | 2008-07-23 | 南阳防爆集团有限公司 | High-capacity non-salient pole nest plate type synchronous generator |
| JP2012016081A (en) * | 2010-06-29 | 2012-01-19 | Nishishiba Electric Co Ltd | Full-closed brushless rotation electrical machine with cooler |
| CN101924414A (en) * | 2010-08-06 | 2010-12-22 | 永济新时速电机电器有限责任公司 | Cutter motor and shield machine |
| CN203056805U (en) * | 2012-12-14 | 2013-07-10 | 中船重工电机科技股份有限公司 | External generator exciter with independent cooling system |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |