CN1006512B - Cool air allocating device below the positioning sleeve of the turbine generator rotator exciting winding - Google Patents
Cool air allocating device below the positioning sleeve of the turbine generator rotator exciting windingInfo
- Publication number
- CN1006512B CN1006512B CN 85105308 CN85105308A CN1006512B CN 1006512 B CN1006512 B CN 1006512B CN 85105308 CN85105308 CN 85105308 CN 85105308 A CN85105308 A CN 85105308A CN 1006512 B CN1006512 B CN 1006512B
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- China
- Prior art keywords
- air
- passage
- lead
- winding
- inlet
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- Expired
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- Windings For Motors And Generators (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a cool air distributing device below a positioning shaft sleeve (3) at one end of an excitation winding of a turbine generator rotor, which comprises a cylinder (6) made of electric insulating materials and directly arranged below the end part of the winding, wherein the cylinder is provided with air inlets (7) which are positioned between winding coils; a radial partition board (8) and an annular partition board (9) are arranged between the cylinder (6) and a rotor shaft (1), and thus, the annular chamber between the cylinder and the rotor shaft is divided into radial flow combining chambers which are used as a cool air inlet (10) and a hot air outlet (11); the flow combining chambers are connected with inlet and outlet paths between the end parts of the coil. The present invention has the technical scheme that an air inlet path and an air outlet path are communicated with an inner path of a conducting wire through openings in the side wall of the conducting wire; in addition, the air outlet path is communicated with the unique outlet flow combining chamber at each pole center.
Description
The present invention relates to a kind of refrigerating gas distributor below the retaining ring of turbine generator rotator excitation winding one end, this device have one that make with electrical insulating material, directly be contained in cylinder below the winding overhang, this cylinder has air inlet, and air inlet is between the coil of above-mentioned winding.This device also is equipped with radially and dividing plate ring-type between cylinder and armature spindle, so that the annular gap between cylinder and the rotating shaft is divided into radially manifold, as the inlet of cold air and the outlet of hot-air.Above-mentioned manifold links to each other with inlet, exit passageway between end winding.
About below the winding overhang retaining ring, distributing refrigerating gas, existing following a kind of way: make refrigerating gas enter the end, gap of winding coil and axle, the footpath enters the air-cooled pipeline that is processed into by the aperture near the coil side of front end in lead afterwards, axially imports.After each root lead of cooling, gas is via the radial passage on the lead wall, and discharges by the aperture on the slot wedge outside the retaining ring end.
This cooling device requirement has long axial cooling duct in lead inside, so the cooling of end is good not as part in the groove, thereby causes producing between each position, its end significant temperature difference.
About below the winding overhang retaining ring, distributing refrigerating gas, also has another way; Make refrigerating gas as the gas entry and exit, circulate in the radially manifold of processing on armature spindle.Each manifold is communicated with a corresponding space between the winding coil, this space or as the gas access, or as gas vent.Cold air is entered in the multiple transverse stria on it by a side of lead, and is discharged by opposite side, by this stria lead is laterally cooled off.Contact the heated gas in back with lead and flow in the lower outlet manifold in position, and axially flow into annular space between retaining ring support plate and the maximum coil, the Hot air quilt ventilating fan is discharged by the end of retaining ring.
This device need carry out expensive machine work to armature spindle, so that the inlet cooling duct is made in end below, makes the outlet manifold system that comprises this retaining ring end ventilating fan simultaneously.
The 805th, No. 878 patent specification of Britain recommended a kind of refrigerating gas distributor, and a cylinder that makes with electrical insulating material is arranged below its winding overhang, and many openings are arranged on it, is connected with a plurality of air inlets, the exhaust passage of refrigerating gas.This make this apparatus structure complexity, involve great expense.
The preferred embodiments of the present invention propose a kind of refrigerating gas distributor, and it has shortened the cooled gas path of rotor tip, and can guarantee that the temperature in excitation winding pole coil is very even, thereby avoid occurring focus.And it still has simple structure, and is convenient to make.
Refrigerating gas distributor of the present invention includes a kind of like this improvement, and it makes air intake duct and the perforate of exhaust duct on the lead sidewall itself be connected with the lead inner passage, and the exhaust passage is connected with unique outlet manifold of each pole center.
Advantage of the present invention is that it comprises characteristics as described below at least:
The exhaust slot of at least some heat outlet passages and rotor slot part is connected, and this exhaust slot leads to the rotor air-gap;
Above-mentioned exhaust slot is by making near the method for pole center place groove milling at the rotor slot part;
The internal channel of at least some end winding conducting wires extends the internal channel lead to the lead in the rotor, and is connected with the radial hole that passes slot wedge, be opened on air-gap;
Radially cold air import manifold links to each other with the passage of no slotted eye, the radially window outside opening of slotless hole path between the winding coil straight line portion, and have side direction air admission hole towards its internal channel at the straight line portion of this coil.The internal channel of the coiler part vertical with armature spindle, the air inlet window that radially exports manifold to hot-air has aperture.
The lead internal channel of rotor slot part extends to outside the edge of end retaining ring, and passes slot wedge via the radial passage, is opened on air-gap.
End coil has horizontal stria, and the refrigerating gas path in the described coil is axial vertical with coil.There is the air inlet window in the hub of a spool zone radially exporting in the manifold, this outlet manifold itself is connected with the exhaust slot rotor slot part, that lead to air-gap.And the existing passage (it passes slot wedge, is opened on exhaust hole, and leads to air-gap) that gas is flowed between lead and slot liner in the nearly groove of rotor slot part zone has circular passage (it is opened on hot-air and radially exports in the manifold) again;
End leads perpendicular to rotating shaft has horizontal stria, lead near the rotor slot part has the inner passage, between lead, have and replace identical inlet of cold air and hot air outlet perpendicular to rotating shaft, these hot air outlets lead to the outlet manifold, and have the inlet of cold air of side direction to lead to the inner passage near the lead of rotor slot part, and be connected with exhaust passage radially, radially the air-gap beyond the retaining ring edge is then led in the exhaust passage.Separate in the mode of sealing and near the passage between the lead of rotor slot part perpendicular to the passage between the end winding of rotating shaft.
Below, by way of example and with reference to accompanying drawing one embodiment of the present of invention are illustrated, wherein:
Fig. 1 is the phantom that refrigerating gas of the present invention distributes the networking;
Fig. 2 is first partial view that comprises the axial passage of winding inside;
Fig. 3 is second local view that launches, and in this drawing, end coil has been carved stria, refrigerating gas or moving along this concentrated flow towards the outlet manifold at center, or between coil, axially flow along this groove.
Fig. 4 is the 3rd the local view that launches that two kinds of different gas passages (i.e. an axial passageway and the path perpendicular to armature spindle) are shown;
Fig. 5 is the axial section of first's gas by axial passageway among Fig. 4.
The refrigerating gas that Fig. 1 is illustrated in below the retaining ring of turbine generator rotator excitation winding end distributes the networking.Rotor is by axle 1, and two ends (one of them only is shown among Fig. 1) that slot part 2 and retaining ring 3 limit are formed.End winding 4 is extensions of the line rod (invisible among the figure) in the rotor slot part, the line rod be contained in slot wedge 5 below.
Cooling blast is represented with arrow, and is limited by the cylinder 6 that electrical insulating material makes.Gap between above-mentioned cylinder and the armature spindle is by radially dividing plate 8 and toroidal membrane 9 are separated into cool air inlet manifold 10 and hot air outlet manifold 11.Gas is through manifold inlet 10(arrow 10A), by opening the slotted eye 7 on cylinder 6, enter the passage between the end winding, enter the inner passage of winding then via the perforate of side.
The first of said flow flows circlewise, between winding, pass through, then downwards by outlet manifold windows 11 li, current limliting wedge 12 opposites (arrow 11A), afterwards again by above-mentioned window below retaining ring 3 ends, between the axial slots 13, scatter, and the end through this slotted eye enters air-gap.Slotted eye 13 is that the pole center at the rotor slot part mills out.
The second portion of air-flow flows to the internal channel near the wire termination retaining ring edge, the rotor slot part vertically, enters air-gap by radial passage and the aperture 14 that passes slot wedge 5 then.
In Fig. 2, refrigerating gas arrives between armature spindle and the cylinder, and via axially extended radial hole 20, pass cylinder, be assigned in the winding from a side, the first's gas in the straight line portion of rotor slot part lead flows into the passage (arrow 21) of the lead inside beyond the retaining ring edge, radially discharges via the radially buttonhole shape passage in the groove then again, so that the aperture on groove 22 escapes into air-gap, these will do more detailed narration below according to Fig. 5.
Second portion gas in the coil front portion below retaining ring flows into the internal channel (arrow 23) of this front portion coil, escape into exit passageway 25 between two windings via the opposite side of above-mentioned winding again, enter outlet manifold 12A through slotted eye 26 radially again, gas is assigned with (arrow 13A) then, enter near axial slots (these slotted eyes mill the magnetic pole of slot part beyond rotor end bell), and entering air-gap, these have illustrated according to Fig. 1.
This type of cooling to end winding is preferably carried out axle-radially or radially air-cooled combining with the straight line portion to lead in the groove.
In Fig. 3, the end winding has many horizontal strias 30, refrigerating gas arrives here along arrow 31, and by the slotted eye that radially extends between the winding (or vertical slotted eye 32, or annular slotted hole 33) distributes, refrigerating gas enters these windings through a side, enters space 35(arrow 38 between the lead through its offside again).This gas is discharged in two kinds of different modes then:
A). in the central area corresponding to pole center, hot-air enters the centre exit manifold of cylinder through radial opening 36, then through milling the slotted eye at the rotor slot part, escapes into air gap (arrow 37) beyond the axle sleeve of location by the magnetic pole place;
B). axially flow towards the rotor slot part along the space between the winding in the end on rotor slot part opposite, hot-air, and separated into two parts.First's gas flows along the rotor between lead and slot liner, enters retaining ring part air-gap in addition via the exhaust hole on the slot wedge 14 then.It also can flow to the slotted eye that mills at pole center: second portion gas flows out through outlet opening from the multipurpose cylinder, is led away by the circular passage near the rotor slot part.Like this, gas tangentially (arrow 39) flows to the central area of magnetic pole, so that escape into air-gap via the above-mentioned slotted eye that mills at pole center.
Thisly can combine with the air-cooled of straight line portion for lead in the rotor for the air-cooled form of winding overhang, its form can be to obtain gas by air-gap, also can be by axle-radially or pure axial form.
Fig. 4 represents to adopt the internal gas passage that the end winding is carried out air-cooled device, these inner passage parts traverse shaft to, a part is horizontal.The axial component of the lead of a little groove exterior domains of portion has axial internal channel.
Conductor part perpendicular to armature spindle has horizontal stria 40.
Cold air distribution cylinder is dispensed into entrance space between the winding with gas.
At the straight line portion of lead, the gas access of axial passage is in close lead one side (arrow 41) that extends axially the corner between part and the lateral part.Axial passage in the lead is at the groove inner opening, and the radially exhaust buttonhole 42 beyond the axle sleeve of location leads to air-gap therefrom.These will do more detailed narration according to Fig. 5 below.There is not the hot air outlet passage between the straight line portion of lead.
As long as sequentially laterally supply with cold air to most of leads, the passage between the anterior winding of lead becomes the inlet region and the outlet area of gas with regard to interleaved ground.The zone of this zone and lead straight line portion separates with wedged seal 43, and wedged seal is isolated from each other two cooling networkings.
Opening on the distribution cylinder provides the import and the outlet of refrigerating gas, and air inlet 44 is facing to rotor, and exhaust outlet 45 is in the pole center district.
In case enter the space between the inlet winding, cold air just flows through the stria of lead front portion, enters the passage (arrow 46) between that then.It enters the outlet manifold of distribution cylinder through exhaust outlet 45, and the space (arrow 47) that is imported between end winding and the rotor slot part escapes into the passage (arrow 48) that is opened on air-gap from pole center then, and these will do more detailed narration according to Fig. 5.
These air-cooled forms can with to rotor-exciting winding straight line portion the axle-radially or radially air-cooled form combine.
When Fig. 5 was illustrated in the distributor that is applicable to Fig. 2 and Fig. 4 narration, after straight line portion that has cooled off lead and front portion, gas passed slot wedge and enters in the air-gap process, the mobility status of two parts refrigerating gas.
The gas that the axial passage 51 of the lead below retaining ring 3 flows flows through at this, leads to radial passage 52, passes slot wedge 5 through aperture 53 then.
Resemble 54 passages that mill out at the rotor slot part like this, be used for discharging the gas of the anterior lead of cooling.These passages and radial passage 55 and the aperture 56 that leads to air-gap are connected.
Claims (3)
1, a kind of refrigerating gas distributor below the retaining ring of turbine generator rotator excitation winding one end, there is one to make with electrical insulating material, directly be contained in the cylinder below the winding overhang, this cylinder has air inlet, air inlet is between the coil of above-mentioned winding, this device also is equipped with radially and dividing plate annular between insulating material cylinder and armature spindle, so that the annular gap between cylinder and the rotating shaft is divided into radially manifold, as the inlet of cold air and the outlet of hot-air, above-mentioned manifold and the inlet between end winding, exit passageway links to each other, the feature that this device made improvements is, inlet channel and exhaust passage itself is connected with the inner passage of lead via the side-wall hole of lead, and, unique outlet manifold in exhaust passage and each pole center district is connected, at least some hot air outlet manifolds are connected with the exhaust slot of the air-gap that leads to the rotor slot part, described exhaust slot preferably, the slotted eye that mills out at the close pole center place of rotor slot part, at least, some passage of winding overhang lead inside extends the lead inner passage of leading in the rotor, with pass the radial hole that slot wedge is opened on air-gap and be connected, radially the inlet of cold air manifold links to each other with the passage that faces toward air inlet, the radial opening of passage between the winding coil straight line portion facing to air inlet outwards is communicated with, and this coil has the side direction air admission hole that leads to its internal channel, perpendicular to the internal channel radius vector of the coiler part of rotating shaft air inlet opening to the hot air outlet manifold, near the rotor slot part lead inner passage preferably extends to beyond the edge of end retaining ring, and via the radial passage of passing slot wedge to the air-gap opening.
2, according to the device of claim 1, it is characterized in that, end coil has horizontal stria, the refrigerating gas path in the described coil and the axis normal of coil, the central area of coil includes the air inlet that radially exports manifold, and this outlet manifold itself is connected with the exhaust slot rotor slot part, that lead to air-gap, and the rotor slot part approaches the zone of groove and includes two kinds of gas passages: a kind of passage flows gas between lead and slot liner, flow out from the steam vent that passes slot wedge, arrive air-gap; Another kind of passage is the circular passage, and it is opened on hot-air and radially exports manifold.
3, device according to claim 1, it is characterized in that, end leads perpendicular to armature spindle has horizontal stria, lead near the rotor slot part has internal channel, between lead, have the inlet of cold air and the hot air outlet of interleaved perpendicular to armature spindle, hot air outlet communicates with the outlet manifold, lead to its inner passage and have the side direction cold air feed hole near the lead of rotor slot part, and be connected with exhaust passage radially, radially retaining ring edge, end air-gap is in addition then led in the exhaust passage, is spaced from each other perpendicular to the passage between the end winding of armature spindle with near the mode of the passage between the lead of rotor slot part with sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85105308 CN1006512B (en) | 1985-07-10 | 1985-07-10 | Cool air allocating device below the positioning sleeve of the turbine generator rotator exciting winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85105308 CN1006512B (en) | 1985-07-10 | 1985-07-10 | Cool air allocating device below the positioning sleeve of the turbine generator rotator exciting winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85105308A CN85105308A (en) | 1987-01-14 |
| CN1006512B true CN1006512B (en) | 1990-01-17 |
Family
ID=4794396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85105308 Expired CN1006512B (en) | 1985-07-10 | 1985-07-10 | Cool air allocating device below the positioning sleeve of the turbine generator rotator exciting winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006512B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931281A (en) * | 2009-06-17 | 2010-12-29 | 哈米尔顿森德斯特兰德公司 | Oil cooled generator |
| CN1727654B (en) * | 2004-07-30 | 2011-12-14 | 三星Techwin株式会社 | Turbo generator and fuel cell system having the same |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2928961B1 (en) * | 2008-03-19 | 2015-11-13 | Snecma | SECTORIZED DISPENSER FOR A TURBOMACHINE. |
| JP5207084B2 (en) * | 2010-01-28 | 2013-06-12 | アイシン・エィ・ダブリュ株式会社 | Stator cooling structure |
| EP2645538B1 (en) * | 2012-03-26 | 2014-11-12 | Alstom Technology Ltd | Rotor for an electric machine |
| CN106849433B (en) * | 2015-12-07 | 2023-04-14 | 东方电气集团东方电机有限公司 | Adopt horizontal air gap of vice groove air feed cooled turbogenerator rotor |
-
1985
- 1985-07-10 CN CN 85105308 patent/CN1006512B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727654B (en) * | 2004-07-30 | 2011-12-14 | 三星Techwin株式会社 | Turbo generator and fuel cell system having the same |
| CN101931281A (en) * | 2009-06-17 | 2010-12-29 | 哈米尔顿森德斯特兰德公司 | Oil cooled generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85105308A (en) | 1987-01-14 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |