CN204012993U - Ventilation cooling structure in a kind of rotor excitation lead - Google Patents
Ventilation cooling structure in a kind of rotor excitation lead Download PDFInfo
- Publication number
- CN204012993U CN204012993U CN201420472667.7U CN201420472667U CN204012993U CN 204012993 U CN204012993 U CN 204012993U CN 201420472667 U CN201420472667 U CN 201420472667U CN 204012993 U CN204012993 U CN 204012993U
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- China
- Prior art keywords
- lead
- rotor
- wire
- exciting
- armature spindle
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- Expired - Fee Related
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- Motor Or Generator Cooling System (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The utility model discloses ventilation cooling structure in a kind of rotor excitation lead, comprise armature spindle and perpendicular to the ventilation hole on the axis of armature spindle, in the rotor-exciting lead-in wire of the below of armature spindle, be provided with groove, on armature spindle, be also provided with and be with gelled hollow lead-in wire bolt, described ventilation hole, groove and hollow lead-in wire bolt form cooling air duct.The ventilation cooling structure of the application's rotor-exciting lead-in wire by armature spindle perpendicular to ventilation hole, the groove of rotor-exciting lead-in wire of axis, be with gelled hollow lead-in wire bolt to form cooling air duct, can make cooling-air directly to the comparatively difficult position of rotor-exciting lead-in wire heat radiation, carry out cooling, thereby significantly improve cooling effect, reduce temperature rise, the useful life of rotor-exciting lead wire insulation.
Description
Technical field
The utility model relates to ventilation cooling structure in a kind of rotor excitation lead, particularly a kind of interior ventilation cooling structure of Large Rotor excitation lead that is applied to.
Background technology
Existing glacon electric machine rotor excitation lead does not design cooling blast structure, because rotor-exciting lead-in wire is in armature spindle core place, exciting current is larger, insulating barrier is thicker simultaneously, rotor-exciting lead-in wire heat radiation difficulty, cause temperature rise, accelerate ageing of insulation, shorten the useful life of rotor-exciting lead wire insulation.
The ventilation of existing document 100～200MW air-cooled steam turbine generator and temperature rise disclose rotor cooling system in calculating, wherein rotor-exciting lead-in wire air is indirectly cooling, interpolar connecting line is that air is directly cooling, but the disclosed rotor-exciting lead-in wire of document air is indirectly cooling to the cooling effect of rotor-exciting lead-in wire bad.So need ventilation cooling structure in a kind of rotor excitation lead badly, for making cooling-air directly carry out cooling to being in the excitation lead of rotor core.
Utility model content
The deficiency existing for solving prior art, the utility model discloses ventilation cooling structure in a kind of rotor excitation lead, this cooling structure can make cooling-air directly to the comparatively difficult position of rotor-exciting lead-in wire heat radiation, carry out cooling, the rotor-exciting lead-in wire heat radiation comparatively position of difficulty is core, because this excitation lead is arranged on the core of rotor, thereby significantly improve cooling effect, reduce temperature rise, improve the useful life of rotor-exciting lead wire insulation.
For achieving the above object, concrete scheme of the present utility model is as follows:
Ventilation cooling structure in a kind of rotor excitation lead, comprise armature spindle and perpendicular to the ventilation hole on the axis of armature spindle, in the rotor-exciting lead-in wire that the core of armature spindle is installed, be provided with groove, described groove is arranged between the hollow lead-in wire bolt of higher-pressure region fresh air inlet and low-pressure area, on armature spindle, be also provided with and be with gelled hollow lead-in wire bolt, described ventilation hole, groove and hollow lead-in wire bolt form cooling air duct.
Described ventilation hole comprises higher-pressure region fresh air inlet and low-pressure area exhaust vent, and higher-pressure region fresh air inlet is arranged between fan and generator guard ring, and low-pressure area exhaust vent is arranged on the hollow lead-in wire bolt that excitation lead is connected with rotor winding.
Described hollow lead-in wire bolt is connected with excitation winding, rotor-exciting lead-in wire; Hollow lead-in wire bolt is the effect that connects rotor-exciting lead-in wire and rotor coil, and Main Function is conduction, is a part for energized circuit, is also a wind path part for ventilation cooling structure in this patent simultaneously.
Between described hollow lead-in wire bolt and armature spindle, be provided with the insulation of lead-in wire bolt; The insulation of lead-in wire bolt realizes rotor and energized circuit isolation, plays the effect of insulation.
The outside of described rotor-exciting lead-in wire is surrounded by excitation lead insulation; Excitation lead insulation realizes rotor and energized circuit isolation, plays the effect of insulation.
The cooling air duct that described ventilation hole, groove and hollow lead-in wire bolt form is U-shaped.
The operation principle of rotor excitation lead ventilation cooling structure: on armature spindle perpendicular to the ventilation hole of axis, the groove of rotor-exciting lead-in wire, be with gelled hollow lead-in wire bolt to form cooling air duct.The groove that higher-pressure region air is entered, gone between by rotor-exciting by the ventilation hole being arranged between fan and retaining ring, through the air-out of hollow lead-in wire bolt.Utility model make cooling-air directly to be in rotor core rotor-exciting lead-in wire heat radiation difficulty carry out cooling, thereby significantly improve cooling effect, the useful life of Extending Rotor excitation lead insulation.
The beneficial effects of the utility model:
The ventilation cooling structure of the application's rotor-exciting lead-in wire by armature spindle perpendicular to ventilation hole, the groove of rotor-exciting lead-in wire of axis, be with gelled hollow lead-in wire bolt to form cooling air duct, can make cooling-air directly to the comparatively difficult position of rotor-exciting lead-in wire heat radiation, carry out cooling, thereby significantly improve cooling effect, reduce temperature rise, the useful life of rotor-exciting lead wire insulation.
Accompanying drawing explanation
Fig. 1 overall structure schematic diagram of the present utility model;
In figure, 1 armature spindle, 2 rotor-exciting lead-in wires, 3 hollow lead-in wire bolts, 4 excitation winding, 5 excitation lead insulation, 6 lead-in wire bolt insulation.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is elaborated: aeration structure in 40MW-350MW air inner-cooled generator rotor-exciting lead-in wire, as shown in Figure 1, a ventilation cooling structure in rotor excitation lead, comprising: armature spindle 1, rotor-exciting lead-in wire 2, hollow lead-in wire bolt 3, excitation winding 4, excitation lead insulation 5, lead-in wire bolt insulation 6.
Perpendicular to the ventilation hole on the axis of armature spindle 1, comprise higher-pressure region fresh air inlet, be arranged between fan and generator guard ring, low-pressure area exhaust vent, be arranged on the rotor-exciting lead-in wire 2 hollow lead-in wire bolts 3 that are connected with rotor winding, in the rotor-exciting lead-in wire 2 that armature spindle 1 (bottom) core is installed, be provided with groove, this groove is between the hollow lead-in wire bolt 3 of higher-pressure region fresh air inlet and low-pressure area, on armature spindle 1, be also provided with and be with gelled hollow lead-in wire bolt 3, fin is for increasing surface radiating area.
Hollow lead-in wire bolt 3 is connected with excitation winding 4 and rotor-exciting lead-in wire 2; Hollow lead-in wire bolt 3 plays the effect that connects rotor-exciting lead-in wire 2 and rotor coil, is a part for energized circuit, is also a wind path part for ventilation cooling structure in this patent simultaneously.Between hollow lead-in wire bolt 3 and armature spindle 1, be provided with lead-in wire bolt insulation 6; Realize rotor and energized circuit isolation, play the effect of insulation.The outside of rotor-exciting lead-in wire 2 is surrounded by excitation lead insulation 5; Realize rotor and energized circuit isolation, play the effect of insulation.Higher-pressure region fresh air inlet is arranged between fan and generator guard ring, and low-pressure area exhaust vent is arranged on the rotor-exciting lead-in wire 2 hollow lead-in wire bolts 3 that are connected with rotor winding.The cooling air duct that ventilation hole, groove and hollow lead-in wire bolt 3 form is U-shaped.
The operation principle of rotor excitation lead ventilation cooling structure: perpendicular to the ventilation hole that is provided with on the axis of armature spindle 1, in the rotor-exciting lead-in wire 2 that armature spindle 1 core is installed, be provided with groove, on armature spindle 1, be also equipped with and be with gelled hollow lead-in wire bolt 3, described ventilation hole, groove and hollow lead-in wire bolt 3 form cooling air duct.Hollow lead-in wire bolt 3 is connected with excitation winding 4; Between hollow lead-in wire bolt 3 and armature spindle 1, be provided with lead-in wire bolt insulation 6; The outside of rotor-exciting lead-in wire 2 is surrounded by excitation lead insulation 5.On armature spindle 1 perpendicular to the ventilation hole of axis, the groove of rotor-exciting lead-in wire 2, be with gelled hollow lead-in wire bolt 3 to form cooling air ducts.The utility model directly carries out cooling-air to rotor-exciting lead-in wire cooling, thereby significantly improves cooling effect, the useful life of Extending Rotor excitation lead insulation 5.By on armature spindle 1 perpendicular to the ventilation hole of axis, the groove of rotor-exciting lead-in wire 2, be with gelled hollow lead-in wire bolt 3 to form cooling air ducts.Cooling-air directly carries out cooling to rotor-exciting lead-in wire 2, thereby significantly improves cooling effectiveness, the useful life of Extending Rotor excitation lead insulation 5.
Claims (6)
1. ventilation cooling structure in a rotor excitation lead, it is characterized in that, ventilation cooling structure in a kind of rotor excitation lead, comprise armature spindle and perpendicular to the ventilation hole on the axis of armature spindle, in the rotor-exciting lead-in wire that the core of armature spindle is installed, be provided with groove, described groove is arranged between the hollow lead-in wire bolt of higher-pressure region fresh air inlet and low-pressure area, is also provided with and is with gelled hollow lead-in wire bolt on armature spindle, and described ventilation hole, groove and hollow lead-in wire bolt form cooling air duct.
2. ventilation cooling structure in a kind of rotor excitation lead as claimed in claim 1, it is characterized in that, described ventilation hole comprises higher-pressure region fresh air inlet and low-pressure area exhaust vent, higher-pressure region fresh air inlet is arranged between fan and generator guard ring, and low-pressure area exhaust vent is arranged on the hollow lead-in wire bolt that excitation lead is connected with rotor winding.
3. ventilation cooling structure in a kind of rotor excitation lead as claimed in claim 1, is characterized in that, described hollow lead-in wire bolt is connected with excitation winding, rotor-exciting lead-in wire.
4. ventilation cooling structure in a kind of rotor excitation lead as claimed in claim 1, is characterized in that, is provided with the insulation of lead-in wire bolt between described hollow lead-in wire bolt and armature spindle.
5. ventilation cooling structure in a kind of rotor excitation lead as claimed in claim 1, is characterized in that, the outside of described rotor-exciting lead-in wire is surrounded by excitation lead insulation.
6. ventilation cooling structure in a kind of rotor excitation lead as claimed in claim 1, is characterized in that, the cooling air duct that described ventilation hole, groove and hollow lead-in wire bolt form is U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472667.7U CN204012993U (en) | 2014-08-20 | 2014-08-20 | Ventilation cooling structure in a kind of rotor excitation lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472667.7U CN204012993U (en) | 2014-08-20 | 2014-08-20 | Ventilation cooling structure in a kind of rotor excitation lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012993U true CN204012993U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420472667.7U Expired - Fee Related CN204012993U (en) | 2014-08-20 | 2014-08-20 | Ventilation cooling structure in a kind of rotor excitation lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199530A (en) * | 2018-01-11 | 2018-06-22 | 西华大学 | A kind of salient pole synchronous electric machine confluence annular lead wire cooling structure |
| CN113637815A (en) * | 2021-09-08 | 2021-11-12 | 中冶华天工程技术有限公司 | Copper cold bolt of cooling wall |
-
2014
- 2014-08-20 CN CN201420472667.7U patent/CN204012993U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199530A (en) * | 2018-01-11 | 2018-06-22 | 西华大学 | A kind of salient pole synchronous electric machine confluence annular lead wire cooling structure |
| CN108199530B (en) * | 2018-01-11 | 2023-07-14 | 西华大学 | Annular lead cooling structure of salient pole synchronous motor confluence |
| CN113637815A (en) * | 2021-09-08 | 2021-11-12 | 中冶华天工程技术有限公司 | Copper cold bolt of cooling wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20210820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |