CN105356672B - High-speed electric expreess locomotive evaporation cooling construction - Google Patents
High-speed electric expreess locomotive evaporation cooling construction Download PDFInfo
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- CN105356672B CN105356672B CN201510906044.5A CN201510906044A CN105356672B CN 105356672 B CN105356672 B CN 105356672B CN 201510906044 A CN201510906044 A CN 201510906044A CN 105356672 B CN105356672 B CN 105356672B
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- stator
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- jet pipe
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Abstract
The invention discloses a kind of high-speed electric expreess locomotive evaporation cooling construction, including casing, rotor and stator, stator is in the inner chamber of casing, rotor is rotated in stator, and the upper end of rotor is stretched in outside casing, it also includes condenser, return duct, pump, liquid heater, vapour-discharge tube, tank for coolant, connecting tube and the jet pipe provided with some spray orifices, 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 by connecting tube with liquid heater, liquid heater is connected by connecting tube with the liquid outlet of pump, the inlet of pump is connected by connecting tube with tank for coolant, tank for coolant passes through return duct and the intracavity inter-connection of casing, the inlet of condenser passes through vapour-discharge tube and the intracavity inter-connection of casing, condenser liquid outlet is connected by connecting tube tank for coolant.The cooling effect of high-speed electric expreess locomotive evaporation cooling construction of the present invention is much better than air-cooled and liquid is cold.
Description
Technical field：
The present invention relates to a kind of high-speed electric expreess locomotive evaporation cooling construction, and it belongs to high-speed electric expreess locomotive technical field.
Background technology：
High-speed electric expreess locomotive has the advantages of small volume power density is high, but also therefore causes the problem of heating is high, radiating is difficult,
It is and notable all the more with the raising of rotating speed and power.And because rotor surface area is small be moving component, its heat dissipation problem
It is more serious than stator.More there is the risk that rotor permanent magnet high temperature demagnetizes for magneto.High-speed electric expreess locomotive is cold at present
But typically following defect be present using the air-cooled and cold mode of liquid, two kinds of types of cooling：
1) the air-cooled type of cooling：Air cooling way using pressure difference or blower fan force cryogenic gas (being typically air) quickly through
Rotor air gap, absorb the heat of rotor.It is air-cooled to cool down stator and rotor simultaneously, but due to gas density low heat capacity
It is low so cooling effect is poor, the air-cooled general power of high-speed electric expreess locomotive is difficult more than 200kW；And the power consumption of cooling gas blower
Also it is larger.Therefore some large high-speed machines use the higher hydrogen of thermal capacity to greatly improve cooling as cooling gas
Effect.But hydrogen is flammable explosive gas, and difficulty is sealed, so application is very limited.
2) the cold type of cooling of liquid：The cold mode of liquid is typically to process or cast water outlet sleeve on casing, allows cryogenic liquid to pass through
The heat transfer of casing absorbs the heat of stator indirectly.The density of liquid is high, thermal capacity is big, therefore cooling effect is preferable, pump machine work(
Consume low.The power of the cold high-speed electric expreess locomotive of liquid is up to more than 1MW.But because high-speed electric expreess locomotive stator surface product is commonly electric only with power
The 1/6~1/3 of machine, and caloric value is similar, so cooling effect is still more far short of what is expected than common electric machine.And this type of cooling
Cooling to rotor has no contribution, often also needs to become more complicated with air-cooled cooling rotor, structure simultaneously.
Also there is the cooling being directly entirely immersed in by liquid spray on rotor or by rotor in coolant on slowspeed machine
Mode.But high-speed electric expreess locomotive linear resonance surface velocity is too high, up to 100~150m/s, the liquid of spray, which is difficult to form liquid film, persistently to absorb heat；
And friction and stirring also result in power consumption and heating between rotor and liquid, even result in coolant and cross thermal metamorphism.So at a high speed
Motor is difficult with the cold mode of liquid while cools down stator and rotor.
Therefore, it is necessory to be improved to prior art to solve the deficiency of prior art.
The content of the invention：
The present invention is to provide a kind of high-speed electric expreess locomotive evaporation cooling construction to solve the above-mentioned problems of the prior art.
The technical solution adopted in the present invention has：A kind of high-speed electric expreess locomotive evaporation cooling construction, including casing, rotor and fixed
Son, the stator is in the inner chamber of casing, and rotor is rotated in stator, and the upper end of rotor is stretched in outside casing, in addition to
Condenser, return duct, pump, liquid heater, vapour-discharge tube, tank for coolant, connecting tube and the jet pipe provided with some spray orifices,
The 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 by connecting tube with
Liquid heater is connected, and liquid heater is connected by connecting tube with the liquid outlet of pump, the inlet of pump by connecting tube with it is cold
But liquid case is connected, and tank for coolant passes through vapour-discharge tube by return duct and the intracavity inter-connection of casing, the inlet of condenser
With the intracavity inter-connection of casing, condenser liquid outlet is connected by connecting tube tank for coolant.
Further, mounting groove for installing jet pipe is included on the stator and along the axis direction of stator.
Further, the jet pipe is metal tube or high temperature-resistant polymer material.
Further, the casing is provided with the steam hole for being respectively used to connect vapour-discharge tube and flowed back for connecting
The return port of pipe.
The present invention has the advantages that：
1) cooling effect of the present invention is much better than air-cooled and liquid is cold,
2) pump is low in energy consumption；
3) rotor and stator can be cooled down simultaneously.
Brief description of the drawings：
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 structure chart of the jet pipe on stator in the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As described in Figure 1, high-speed electric expreess locomotive evaporation cooling construction of the present invention include casing 1, rotor 2, stator 3, condenser 4, return
Flow tube 5, pump 6, liquid heater 7, vapour-discharge tube 10, jet pipe 8 and but liquid case 9, stator 3 are arranged in the inner chamber of casing 1,
Rotor 2 is rotated in stator 3, and the upper end of rotor 2 is stretched in outside casing 1, and jet pipe 8 is fixedly connected on stator 3, in jet pipe 8
On some spray orifices 81 towards rotor 2 periphery.The liquid feeding end of jet pipe 8 is connected by connecting tube with liquid heater 7, liquid
Heater 7 is connected by connecting tube with the liquid outlet of pump 6, and the inlet of pump 6 is connected by connecting tube with tank for coolant 9, cooling
Liquid case 9 passes through vapour-discharge tube 10 and casing 1 by return duct 5 and the intracavity inter-connection of casing 1, the inlet of condenser 4
Intracavity inter-connection, the liquid outlet of condenser 4 are connected by connecting tube tank for coolant 9.
Such as Fig. 2 and Fig. 3, the invention enables jet pipe 8 can maximum area jet rotor 2, on stator 3 and along stator 3
Axis direction includes one or more mounting groove 31, and installation jet pipe 8 is placed in the mounting groove 31.Jet pipe 8 in the present invention is
Metal tube, it can also be made of high temperature-resistant polymer material to avoid eddy-current heating.
The present invention is provided with casing 1 for ease of connection vapour-discharge tube 10 and return duct 5 and is respectively used to connect steam row
The steam hole 11 of outlet pipe 10 and the return port 12 for connecting return duct 5.
In tank for coolant 9 built with coolant, coolant should select stable chemical performance, volatile fluent material, cold
But close to boiling point after the heating of liquid heater 7 when liquid enters jet pipe 8.The outlet pressure of conventional liquid pump generally has 3~
10 kilograms, so spray overpressure is higher, and be normal pressure or negative pressure state in casing 1.Coolant from spray orifice injection after pressure
Rapid drawdown causes boiling point to decline, and coolant is easier to gasify.Drop contact has failed to partial gasification behind the surface of rotor 2 of high temperature
The coolant to gasify entirely is got rid of to stator 3 by rotor 2, and continues to gasify on the surface of stator 3.Steam hole 11 of the steam from casing top
Discharge, tank for coolant 9 is flowed into after condenser 4 condenses into liquid.Unnecessary coolant flows to casing 1 along the surface of stator 3,
And collect in casing lowest part, flow into tank for coolant 9 then along return duct 5.
When being cooled down using evaporation, substantial amounts of heat can be taken away from the limited surface of stator, rotor, so as to effectively reduce
The temperature of stator, rotor., can be by the temperature stabilization inside high-speed electric expreess locomotive corresponding by selecting the different cooling liquid of boiling point
Within the temperature range of.Because the cooling liquid dosage of evaporation cooling required is far fewer than liquid cooling, therefore the power of pump can be big
It is big to reduce.And the preheating of coolant can also utilize the used heat of steam condensation, without additional energy.If from there is lubricant effect
Coolant, substitution lubricating oil in the bearing of high-speed electric expreess locomotive can also be sprayed into, preferable lubricant effect can be obtained.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (4)
1. a kind of high-speed electric expreess locomotive evaporation cooling construction, including casing (1), rotor (2) and stator (3), the stator (3) are located at machine
In the inner chamber of shell (1), rotor (2) is rotated in stator (3), and the upper end of rotor (2) stretches in casing (1) outside, and its feature exists
In：Also include condenser (4), return duct (5), pump (6), liquid heater (7), vapour-discharge tube (10), tank for coolant (9),
Connecting tube and the jet pipe (8) provided with some spray orifices (81), the jet pipe (8) is fixedly connected on stator (3), and jet pipe (8)
Spray orifice (81) be connected towards rotor (2) periphery, the liquid feeding end of jet pipe (8) by connecting tube with liquid heater (7), liquid
Heater (7) is connected by connecting tube with the liquid outlet of pump (6), and the inlet of pump (6) passes through connecting tube and tank for coolant (9) phase
Even, tank for coolant (9) is arranged by return duct (5) and the intracavity inter-connection of casing (1), the inlet of condenser (4) by steam
Outlet pipe (10) and the intracavity inter-connection of casing (1), condenser (4) liquid outlet are connected by connecting tube tank for coolant (9).
2. high-speed electric expreess locomotive evaporation cooling construction as claimed in claim 1, it is characterised in that：On the stator (3) and along stator
(3) axis direction includes the mounting groove (31) for installing jet pipe (8).
3. high-speed electric expreess locomotive evaporation cooling construction as claimed in claim 2, it is characterised in that：The jet pipe (8) be metal tube or
High temperature-resistant polymer material.
4. high-speed electric expreess locomotive evaporation cooling construction as claimed in claim 3, it is characterised in that：The casing (1) is provided with difference
For connecting the steam hole (11) of vapour-discharge tube (10) and 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN105356672A CN105356672A (en) | 2016-02-24 |
| CN105356672B true CN105356672B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510906044.5A Active CN105356672B (en) | 2015-12-09 | 2015-12-09 | High-speed electric expreess locomotive evaporation cooling construction |
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Families Citing this family (2)
| 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 |
| CN111049324B (en) * | 2019-11-12 | 2021-04-20 | 超音速智能科技(浙江)有限公司 | Motor cooling system |
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 |
-
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 |
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| CN105356672A (en) | 2016-02-24 |
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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. |