CN104810949A - Motor cooling structure of centrifugal compressor or air blower for high-speed motor - Google Patents
Motor cooling structure of centrifugal compressor or air blower for high-speed motor Download PDFInfo
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- CN104810949A CN104810949A CN201510210597.7A CN201510210597A CN104810949A CN 104810949 A CN104810949 A CN 104810949A CN 201510210597 A CN201510210597 A CN 201510210597A CN 104810949 A CN104810949 A CN 104810949A
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- rotor
- air
- cooling
- motor
- centrifugal compressor
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- 238000001816 cooling Methods 0.000 title claims abstract description 35
- 230000003137 locomotive effect Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 8
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a motor cooling structure of a centrifugal compressor or an air blower for a high-speed motor. Conventionally, as for a centrifugal compressor or an air blower for a high-speed motor, a motor rotor is quite high in circumferential speed, large friction loss between the surface of the rotor and air is caused to result in rotor heating, and a compressed air cooling method for cooling the rotor by a great quantity of compressed air is high in consumption ratio and causes reduction of integral equipment efficiency. In the motor cooling structure, the compressed air cooling method is substituted by arranging an air guide structure on the surface of a rotor or a stator, and by means of rotation of the rotor, air supply is achieved, so that rotor heating is controlled minimally to be cooled. The motor cooling structure mainly aims to reduce loss caused by using of cooling air for cooling the rotor conventionally.
Description
Technical field
The present invention relates to the motor cooling of a kind of high-speed electric expreess locomotive centrifugal compressor or air blast, rotor speed is at more than 10000rpm, and in the compressor as production gas source, number of components is compressed to minimum by the present invention.Wherein, not the speed using conventional gears to improve centrifugal compressor or air blast, but directly use high-speed electric expreess locomotive to drive.Because secondary speed is low, so centrifugal compressor or air blast cannot fully work, turbine High Rotation Speed therefore must be allowed.Conventional machine uses gear increaser always.
Background technology
Recently, develop high-speed electric expreess locomotive, therefore can not consider to use gear, but directly use high-speed electric expreess locomotive to drive.Traditional rotor cooling means uses a large amount of compressed air to cool, and consuming energy excessively becomes a great problem.
Fig. 1 is the schematic diagram of traditional type of cooling.At middle part device rotor 4, the two ends of rotor 4 connect impeller 6 and impeller 7 respectively, rotor has air journal bearing and air thrust bearing, rotor is provided with labyrinth sealing.Motor stator 5 flows to coolant outlet 3 by cooling water from cooling water inlet 2, realizes cooling.The cooling compressed air that rotor is injected by cooling air intake 1 cools.Inject the compressed air of 0.2-0.4Mpa from cooling air intake 1, cooled rotor surface, flows simultaneously, is finally discharged in air on bearing.This cooling-air approximately needs the pressure of 0.2Mpa-0.4Mpa.
Summary of the invention
For the problems referred to above, the invention provides the motor cooling of a kind of used in high-speed motor centrifugal compressor or air blast, to solve the excessive problem of energy consumption that traditional type of cooling brings.
When cooling rotor surface, the test result of its air pressure and friction loss is as follows:
| Pressure MPA(G) | —0.1 | 0.0 | 0.2 | 0.4 | 0.6 |
| Friction loss (KW) | 0.06 | 1.76 | 4.5 | 7.0 | 9.2 |
Air pressure is higher, and cooling air volume increase is more, and cooling capacity also can rise, but wasted power also increases thereupon.Air pressure is lower, and friction loss is fewer.
Technical scheme of the present invention is as follows:
The motor cooling of used in high-speed motor centrifugal compressor or air blast, motor stator or rotor configuration are provided with air guide structure, and when rotor rotates, drive motor inner air, along the flowing of described air guide structure, realizes supplying gas continuously.
In a preferred embodiment of the invention, described air guide structure is the cooling construction digging the barber-pole of the spiral helicine striped of system or projection on rotor surface.
In a preferred embodiment of the invention, described air guide structure is be provided with to drive air to flow to middle dentation cooling construction from two ends on rotor.
In a preferred embodiment of the invention, described air guide structure is the cooling construction digging the barber-pole of the spiral helicine striped of system or projection on motor stator surface.
Compared with the cooling-air using 0.2-0.4Mpa with conventional method, use method of the present invention the friction loss of cooling-air can be reduced to less than 1/3rd.
The detailed description and obtaining that feature of the present invention can consult the graphic and following better execution mode of this case is well understood to.
Accompanying drawing explanation
Fig. 1 is traditional used in high-speed motor centrifugal compressor or the schematic diagram of air blast.
Fig. 2 is the schematic diagram of used in high-speed motor centrifugal compressor or air blast.
Fig. 3 is the close-up schematic view of rotor in embodiment 1.
Fig. 4 is the close-up schematic view of the another kind of structure of rotor in embodiment 1.
Fig. 5 is the schematic diagram of embodiment 2.
Fig. 6 is the I place enlarged diagram in Fig. 5.
Fig. 7 is the schematic diagram of the guiding device being arranged on lug boss side.
Fig. 8 is the II place blade enlarged diagram in Fig. 7.
Fig. 9 is the rotor stator structural representation in embodiment 3.
Figure 10 is a kind of structural representation on spiral limit, III place in Fig. 8.
Figure 11 is the another kind of structural representation on spiral limit, III place in Fig. 8.
Figure 12 is the rotor stator structural representation of embodiment 4.
Figure 13 is the schematic diagram of used in high-speed motor air blast.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with specific embodiment.
See Fig. 2, the two ends of armature spindle 20 are respectively arranged with impeller 21 and impeller 22, and centre position is rotor 30.
Shown in 50, air sucks from air, arranges air guide structure at rotor 30 or motor stator 40 surface, by the rotation of rotor 30, sucks air, through motor stator, is discharged in air by 60.
Utilize the air shown in 50, can cool rotor 30, compare with Fig. 1, cooling-air pressure is low, and air friction loss is few, and whole efficiency improves.
Embodiment 1
See Fig. 3, arrange spiral helicine striped 31 on the surface of rotor 30, spiral helicine striped 31 is structures of a kind of priming generation air flowing 32.Spiral helicine striped 31 comprises two sections, and direction is contrary, and traction air-flow is from two ends to intermediate flow.
Or, see Fig. 4, rotor 30 surface barber-pole 33 is in the same way set, traction air-flow from one end to the other side flows.
Embodiment 2
See Fig. 5-8, portion arranges the jut shown in 34 in the rotor, is provided with the wing structure shown in 35 in the both sides of jut 34.By the rotation of rotor 30, wing structure 35 makes it that air flowing 41 occur, and the cooling-air of generation is discharged via 60.
Embodiment 3
See Fig. 9, in the inner side of motor stator 40, arrange spiral helicine striped 42, spiral helicine striped 42 comprises two sections, and direction is contrary, and traction air-flow is from two ends to intermediate flow.When rotor 30 rotates, the flowing of cooling-air 50 will be produced, be vented by outlet 52.Figure 10 and Figure 11 arranges protruding or recessed striped at motor stator.
See Figure 12, in the inner side of motor stator 40, arrange barber-pole 43 in the same way, traction air-flow from one end to the other side flows.
See Figure 13, a kind of used in high-speed motor air blast, impeller 21 is directly connected with high-speed electric expreess locomotive 23, in like manner, motor stator rotor configuration is provided with air guide structure, when rotor rotates, drive motor inner air, along the flowing of described air guide structure, realizes supplying gas continuously.Shown in 50, air sucks from air, is to suck from the two ends of rotor 30, and lost pressure cooling air 60, by the through stator 40 in centre position, is discharged by vacuum pump or air-spray vacuum pump, discharged into the atmosphere.More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection range of application claims is defined by appending claims and equivalent thereof.
Claims (3)
1. the centrifugal compressor of high-speed electric expreess locomotive or the rotor cooling structure of air blast is the rotor of a kind of guiding cooling air when the rotor rotates flowing or the surface structure of stator.
2. about the centrifugal compressor of high-speed electric expreess locomotive according to claim 1 or the rotor cooling structure of air blast, one processed is dug when the rotor rotates, the depression barber-pole of guiding cooling air flowing or the cooling construction of raised spiral shape striped at rotor or stator surface.
3. about the centrifugal compressor of high-speed electric expreess locomotive according to claim 1 or the rotor cooling structure of air blast, at rotor or stator surface, one is set when the rotor rotates, the aliform cooling construction of guiding cooling air flowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210597.7A CN104810949A (en) | 2015-04-29 | 2015-04-29 | Motor cooling structure of centrifugal compressor or air blower for high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210597.7A CN104810949A (en) | 2015-04-29 | 2015-04-29 | Motor cooling structure of centrifugal compressor or air blower for high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104810949A true CN104810949A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510210597.7A Pending CN104810949A (en) | 2015-04-29 | 2015-04-29 | Motor cooling structure of centrifugal compressor or air blower for high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104810949A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114244020A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Air-cooled aviation permanent magnet motor with high power density |
| CN119957512A (en) * | 2024-12-20 | 2025-05-09 | 浙江大学高端装备研究院 | A coolant circulation pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58215954A (en) * | 1982-06-07 | 1983-12-15 | Mitsubishi Electric Corp | rotor of rotating electric machine |
| JPH05153743A (en) * | 1991-11-27 | 1993-06-18 | Yaskawa Electric Corp | Method and system for cooling rotating electric machine |
| CN1784818A (en) * | 2003-04-16 | 2006-06-07 | 西门子公司 | Electric machine having cooled metal laminated stator and rotor cores and windings |
| US20080197725A1 (en) * | 2007-02-16 | 2008-08-21 | Rolls-Royce Plc | Cooling arrangement for a variable reluctance electric machine |
| CN201742188U (en) * | 2010-08-12 | 2011-02-09 | 许晓华 | Novel motor rotor |
| CN102983679A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | In-slot self-cooling high-speed permanent magnetic motor system for compressor |
| CN103026597A (en) * | 2010-07-28 | 2013-04-03 | 西门子公司 | Fluid-cooled electric machine |
| CN203522437U (en) * | 2013-10-08 | 2014-04-02 | 颜洋 | Improved turbine generator |
-
2015
- 2015-04-29 CN CN201510210597.7A patent/CN104810949A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58215954A (en) * | 1982-06-07 | 1983-12-15 | Mitsubishi Electric Corp | rotor of rotating electric machine |
| JPH05153743A (en) * | 1991-11-27 | 1993-06-18 | Yaskawa Electric Corp | Method and system for cooling rotating electric machine |
| CN1784818A (en) * | 2003-04-16 | 2006-06-07 | 西门子公司 | Electric machine having cooled metal laminated stator and rotor cores and windings |
| US20080197725A1 (en) * | 2007-02-16 | 2008-08-21 | Rolls-Royce Plc | Cooling arrangement for a variable reluctance electric machine |
| CN103026597A (en) * | 2010-07-28 | 2013-04-03 | 西门子公司 | Fluid-cooled electric machine |
| CN201742188U (en) * | 2010-08-12 | 2011-02-09 | 许晓华 | Novel motor rotor |
| CN102983679A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | In-slot self-cooling high-speed permanent magnetic motor system for compressor |
| CN203522437U (en) * | 2013-10-08 | 2014-04-02 | 颜洋 | Improved turbine generator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114244020A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Air-cooled aviation permanent magnet motor with high power density |
| CN114244020B (en) * | 2021-12-13 | 2023-12-22 | 陕西航空电气有限责任公司 | High-power-density air-cooled aviation permanent magnet motor |
| CN119957512A (en) * | 2024-12-20 | 2025-05-09 | 浙江大学高端装备研究院 | A coolant circulation pump |
| CN119957512B (en) * | 2024-12-20 | 2025-10-14 | 浙江大学高端装备研究院 | Cooling liquid circulating pump |
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Application publication date: 20150729 |