CN105356672A - High-speed motor evaporative cooling structure - Google Patents
High-speed motor evaporative cooling structure Download PDFInfo
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- CN105356672A CN105356672A CN201510906044.5A CN201510906044A CN105356672A CN 105356672 A CN105356672 A CN 105356672A CN 201510906044 A CN201510906044 A CN 201510906044A CN 105356672 A CN105356672 A CN 105356672A
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Abstract
The invention discloses a high-speed motor evaporative cooling structure, including an enclosure, a rotor and a stator. The stator is arranged in an inner cavity of the enclosure, the rotor is rotatably arranged in the stator, and the upper end of the rotor stretches out of the enclosure. The high-speed motor evaporative cooling structure also includes a condenser, a return pipe, a pump, a liquid heater, a steam discharge pipe, a cooling liquid box, a connecting pipe and a spray pipe provided with a plurality of spray holes, the spray pipe is fixedly connected on the stator, the spray holes of the spray pipe are towards a circumferential surface of the rotor, a liquid inlet end of the spray pipe is connected with the liquid heater through the connecting pipe, the liquid heater is connected with a liquid outlet of the pump through the connecting pipe, a liquid inlet of the pump is connected with the cooling liquid box through the connecting pipe, the cooling liquid box is communicated with an inner cavity of the enclosure, a liquid inlet of the condenser is communicated with the inner cavity of the enclosure through the steam discharge pipe, and a liquid outlet of the condenser is connected with the cooling liquid box through the connecting pipe. A cooling effect of the high-speed motor evaporative cooling structure is far better than air cooling and liquid cooling.
Description
Technical field:
The present invention relates to a kind of high-speed electric expreess locomotive evaporation cooling construction, it belongs to high-speed electric expreess locomotive technical field.
Background technology:
High-speed electric expreess locomotive has the advantage that volume small-power density is high, but also therefore cause heating high, heat radiation difficulty problem, and along with the raising of rotating speed and power remarkable all the more.And because rotor surface area is little, be again moving component, its heat dissipation problem is more serious than stator.For the risk more having rotor permanent magnet high temperature to demagnetize magneto.The cooling of current high-speed electric expreess locomotive generally adopts air-cooled and liquid cooling mode, and these two kinds of types of cooling exist following defect:
1) the air-cooled type of cooling: air cooling way utilizes pressure reduction or blower fan to force cryogenic gas (normally air) quickly through rotor air gap, absorbs the heat of rotor.Air-cooledly can cool stators and rotators simultaneously, but due to gas density low heat capacity low so cooling effect is poor, the general power of air-cooled high-speed electric expreess locomotive is difficult to more than 200kW; And the power consumption of cooling gas blower is also larger.Therefore the hydrogen that some large high-speed machine use thermal capacity is higher, as refrigerating gas, can improve cooling effect greatly.But hydrogen is flammable explosive gas, and sealing difficulty, so range of application is very limited.
2) the liquid cooling type of cooling: liquid cooling mode is normally processed or cast out water jacket on casing, allows cryogenic liquid indirectly absorb the heat of stator by the heat transfer of casing.The density of liquid is high, thermal capacity large, and therefore cooling effect is better, pump machine is low in energy consumption.The power of liquid cooling high-speed electric expreess locomotive can reach more than 1MW.But only have 1/6 ~ 1/3 of same power common electric machine because high-speed electric expreess locomotive stator surface amasss, and caloric value is similar, so cooling effect is still far short of what is expected than common electric machine.And the cooling of this type of cooling to rotor there is no contribution, need to use air-cooled cooled rotor toward contact, structure becomes more complicated simultaneously.
Slowspeed machine also has and directly liquid is sprayed on rotor or by whole for the rotor type of cooling be immersed in cooling fluid.But high-speed electric expreess locomotive linear resonance surface velocity is too high, can reach 100 ~ 150m/s, the liquid of spray is difficult to form liquid film and continues heat absorption; And between rotor and liquid, friction and stirring also can cause power consumption and heating, even cause cooling fluid to cross thermal metamorphism.So high-speed electric expreess locomotive is difficult to cool stators and rotators by liquid cooling mode simultaneously.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Summary of the invention:
The present invention provides a kind of high-speed electric expreess locomotive evaporation cooling construction to solve above-mentioned prior art Problems existing.
The technical solution adopted in the present invention has: a kind of high-speed electric expreess locomotive evaporation cooling construction, comprise casing, rotor and stator, described stator is located in the inner chamber of casing, rotor turns is located at fixed) in, and the upper end of rotor stretches in outside casing, also comprise condenser, return duct, pump, liquid heater, vapour-discharge tube, tank for coolant, tube connector and be provided with the jet pipe of some spray orifices, described jet pipe is fixedly connected on stator, and the spray orifice of jet pipe is towards rotor circumference face, the liquid feeding end of jet pipe is connected with liquid heater by tube connector, liquid heater is connected with the liquid outlet of pump by tube connector, the inlet of pump is connected with tank for coolant by tube connector, tank for coolant is by the intracavity inter-connection of return duct and casing, the inlet of condenser is by the intracavity inter-connection of vapour-discharge tube and casing, condenser liquid outlet is connected by tube connector tank for coolant.
Further, the mounting groove for installing jet pipe is included on described stator and along the axis direction of stator.
Further, described jet pipe is metal tube or high temperature-resistant polymer material.
Further, described casing is provided with and is respectively used to connect the steam hole of vapour-discharge tube and the return port for connecting return duct.
The present invention has following beneficial effect:
1) cooling effect of the present invention is much better than air-cooled and liquid cooling,
2) pump is low in energy consumption;
3) can simultaneously cooled rotor and stator.
Accompanying drawing illustrates:
Fig. 1 is structure chart of the present invention.
Fig. 2 is the position assumption diagram of jet pipe and rotor in the present invention.
Fig. 3 is the structure chart of jet pipe on stator in the present invention.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As described in Figure 1, high-speed electric expreess locomotive evaporation cooling construction of the present invention comprises casing 1, rotor 2, stator 3, condenser 4, return duct 5, pump 6, liquid heater 7, vapour-discharge tube 10, jet pipe 8 and but liquid case 9, stator 3 is arranged in the inner chamber of casing 1, rotor 2 rotates to be located in stator 3, and the upper end of rotor 2 stretches in outside casing 1, jet pipe 8 is fixedly connected on stator 3, and the some spray orifices 81 on jet pipe 8 are towards the periphery of rotor 2.The liquid feeding end of jet pipe 8 is connected with liquid heater 7 by tube connector, liquid heater 7 is connected by the liquid outlet of tube connector with pump 6, the inlet of pump 6 is connected with tank for coolant 9 by tube connector, tank for coolant 9 is by the intracavity inter-connection of return duct 5 with casing 1, the inlet of condenser 4 is by the intracavity inter-connection of vapour-discharge tube 10 with casing 1, and condenser 4 liquid outlet is connected by tube connector tank for coolant 9.
As Fig. 2 and Fig. 3, the invention enables the jet rotor 2 of jet pipe 8 energy maximum area, on stator 3 and along the axis direction of stator 3, include one or more mounting groove 31, jet pipe 8 is installed and is placed in this mounting groove 31.Jet pipe 8 in the present invention is metal tube, also can make of high temperature-resistant polymer material to avoid eddy-current heating.
The present invention, for ease of connecting vapour-discharge tube 10 and return duct 5, casing 1 is provided with and is respectively used to connect the steam hole 11 of vapour-discharge tube 10 and the return port 12 for connecting return duct 5.
At tank for coolant 9 built with cooling fluid, cooling fluid should select stable chemical performance, volatile fluent material, when cooling fluid enters jet pipe 8 after liquid heater 7 heats close to boiling point.The outlet pressure of conventional liquor pump has 3 ~ 10 kilograms usually, so jet pipe internal pressure is higher, and is normal pressure or negative pressure state in casing 1.Cooling fluid pressure drop after spray orifice sprays causes boiling point to decline, and cooling fluid more easily gasifies.Drop contact is to the rotor 2 surperficial rear section gasification of high temperature, and the cooling fluid of failing to be gasified totally is got rid of to stator 3 by rotor 2, and continues gasification on stator 3 surface.Steam is discharged from the steam hole 11 on casing top, condenses into after liquid flow into tank for coolant 9 through condenser 4.Unnecessary cooling fluid flows to casing 1 along stator 3 surface, and collects at casing lowest part, then flows into tank for coolant 9 along return duct 5.
When using evaporative cooling, a large amount of heats can be taken away from the surface that stator, rotor are limited, thus effectively reduce the temperature of stator, rotor.By the cooling liquid selecting boiling point different, can by the temperature stabilization of high-speed electric expreess locomotive inside in corresponding temperature range.Because the cooling liquid consumption of evaporative cooling needs is far fewer than liquid cools, therefore the power of pump can reduce greatly.And the preheating of cooling fluid can also utilize the used heat of steam-condensation, without the need to additional energy.If select the cooling fluid of lubricant effect, the bearing interior replacement lubricating oil of high-speed electric expreess locomotive can also be sprayed into, good lubricant effect can be obtained.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (4)
1. a high-speed electric expreess locomotive evaporation cooling construction, comprise casing (1), rotor (2) and stator (3), described stator (3) is located in the inner chamber of casing (1), rotor (2) rotates to be located in stator (3), and the upper end of rotor (2) stretches in casing (1) outward, it is characterized in that: also comprise condenser (4), return duct (5), pump (6), liquid heater (7), vapour-discharge tube (10), tank for coolant (9), tube connector and be provided with the jet pipe (8) of some spray orifices (81), described jet pipe (8) is fixedly connected on stator (3), and the spray orifice (81) of jet pipe (8) is towards rotor (2) periphery, the liquid feeding end of jet pipe (8) is connected with liquid heater (7) by tube connector, liquid heater (7) is connected by the liquid outlet of tube connector with pump (6), the inlet of pump (6) is connected with tank for coolant (9) by tube connector, tank for coolant (9) is by the intracavity inter-connection of return duct (5) with casing (1), the inlet of condenser (4) is by the intracavity inter-connection of vapour-discharge tube (10) with casing (1), condenser (4) liquid outlet is connected by tube connector tank for coolant (9).
2. high-speed electric expreess locomotive evaporation cooling construction as claimed in claim 1, is characterized in that: include the mounting groove (31) for installing jet pipe (8) on described stator (3) and along the axis direction of stator (3).
3. high-speed electric expreess locomotive evaporation cooling construction as claimed in claim 2, is characterized in that: described jet pipe (8) is metal tube or high temperature-resistant polymer material.
4. high-speed electric expreess locomotive evaporation cooling construction as claimed in claim 3, is characterized in that: described casing (1) is provided with and is respectively used to connect the steam hole (11) of vapour-discharge tube (10) and the return port (12) for connecting return duct (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906044.5A CN105356672B (en) | 2015-12-09 | 2015-12-09 | High-speed electric expreess locomotive evaporation cooling construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510906044.5A CN105356672B (en) | 2015-12-09 | 2015-12-09 | High-speed electric expreess locomotive evaporation cooling construction |
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| CN105356672A true CN105356672A (en) | 2016-02-24 |
| CN105356672B CN105356672B (en) | 2017-12-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742936A (en) * | 2017-12-04 | 2018-02-27 | 南京磁谷科技有限公司 | A kind of dual-purpose casing of magnetic suspension blower fan refrigerant evaporation oil cooling |
| CN110011511A (en) * | 2019-04-22 | 2019-07-12 | 上海电缆研究所有限公司 | The long stator structure and long stator current-carrying capacity of cable improvement method of magnetic suspension train |
| CN111049324A (en) * | 2019-11-12 | 2020-04-21 | 超音速智能科技(浙江)有限公司 | Motor cooling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1322289A (en) * | 1998-10-09 | 2001-11-14 | 美国标准公司 | Oil-free liquid chiller |
| JP2005168265A (en) * | 2003-12-05 | 2005-06-23 | Nissan Motor Co Ltd | Cooling structure for rotary electric machine |
| JP2006006091A (en) * | 2004-06-21 | 2006-01-05 | Nissan Motor Co Ltd | Cooling device for motor |
| JP2010110025A (en) * | 2008-10-28 | 2010-05-13 | Yaskawa Electric Corp | Cooling device for rotating electric machine |
| JP2013066348A (en) * | 2011-09-20 | 2013-04-11 | Hitachi Constr Mach Co Ltd | Generator motor and electric vehicle using the same |
| JP2013090482A (en) * | 2011-10-19 | 2013-05-13 | Toyota Motor Corp | Rotary electric machine |
| JP2014042414A (en) * | 2012-08-23 | 2014-03-06 | Toyota Motor Corp | Rotary electric machine |
| CN205178774U (en) * | 2015-12-09 | 2016-04-20 | 南京磁谷科技有限公司 | High speed motor evaporation cooling structure |
-
2015
- 2015-12-09 CN CN201510906044.5A patent/CN105356672B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322289A (en) * | 1998-10-09 | 2001-11-14 | 美国标准公司 | Oil-free liquid chiller |
| JP2005168265A (en) * | 2003-12-05 | 2005-06-23 | Nissan Motor Co Ltd | Cooling structure for rotary electric machine |
| JP2006006091A (en) * | 2004-06-21 | 2006-01-05 | Nissan Motor Co Ltd | Cooling device for motor |
| JP2010110025A (en) * | 2008-10-28 | 2010-05-13 | Yaskawa Electric Corp | Cooling device for rotating electric machine |
| JP2013066348A (en) * | 2011-09-20 | 2013-04-11 | Hitachi Constr Mach Co Ltd | Generator motor and electric vehicle using the same |
| JP2013090482A (en) * | 2011-10-19 | 2013-05-13 | Toyota Motor Corp | Rotary electric machine |
| JP2014042414A (en) * | 2012-08-23 | 2014-03-06 | Toyota Motor Corp | Rotary electric machine |
| CN205178774U (en) * | 2015-12-09 | 2016-04-20 | 南京磁谷科技有限公司 | High speed motor evaporation cooling structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742936A (en) * | 2017-12-04 | 2018-02-27 | 南京磁谷科技有限公司 | A kind of dual-purpose casing of magnetic suspension blower fan refrigerant evaporation oil cooling |
| CN110011511A (en) * | 2019-04-22 | 2019-07-12 | 上海电缆研究所有限公司 | The long stator structure and long stator current-carrying capacity of cable improvement method of magnetic suspension train |
| CN111049324A (en) * | 2019-11-12 | 2020-04-21 | 超音速智能科技(浙江)有限公司 | Motor cooling system |
| CN111049324B (en) * | 2019-11-12 | 2021-04-20 | 超音速智能科技(浙江)有限公司 | Motor cooling system |
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| CN105356672B (en) | 2017-12-15 |
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Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
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