CN209184415U - The full-liquid type evaporative cooling system cooling for motor - Google Patents
The full-liquid type evaporative cooling system cooling for motor Download PDFInfo
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- CN209184415U CN209184415U CN201821798722.6U CN201821798722U CN209184415U CN 209184415 U CN209184415 U CN 209184415U CN 201821798722 U CN201821798722 U CN 201821798722U CN 209184415 U CN209184415 U CN 209184415U
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Abstract
The utility model discloses a kind of full-liquid type evaporative cooling systems cooling for motor, are suitable for the motor that stator outer surface temperature is near or below environment temperature.Stator outer sleeve, gas-liquid separator, compressor, oil eliminator, condenser and expansion valve including being full of liquid organic working medium.Heat when in order to make full use of the transformed band of organic liquid working medium to walk motor work, rotor shaft both ends be equipped with inlet and liquid outlet, in the rotor between be equipped with cooling duct and allow liquid organic working medium smooth outflow, the outside of stator core is provided with cooling cover, it is filled with liquid organic working medium, cooling cover upper end setting pipeline is connected with gas-liquid separator upper end.Pass through the cooling Phase cooling scheme combined of evaporation in the evaporation of stator full-liquid type and armature spindle, provided cooling system has excellent high-power samming cooling characteristics, it can solve the problems, such as that modern electrical machine volume becomes small, heat dissipation is increasingly difficult, rotor temperature rise is locally excessively high, effectively particularly suitable for the permanent magnet high temperature loss of excitation in magneto is effectively solved the problems, such as.
Description
Technical field
The utility model relates to a kind of evaporative cooling systems cooling for motor, are especially adapted for use in heavy-duty motor
Compact efficient cooling heat radiation system, more particularly, to a kind of full-liquid type evaporative cooling system cooling for electric machine rotor.
Background technique
The huge advantage that high-speed motor has power density big, can effectively save material.Since rotary inertia is smaller,
So dynamic response is very fast, if high-speed motor and load are connected directly, traditional mechanical variable speed device can be saved, to mention
High transmission system efficiency, therefore the research of high-speed motor and application meet the economic development needs of energy-saving and emission-reduction, high speed grinding machine,
The fields such as flywheel energy storage, aerospace have a extensive future.
With being continuously increased for capacity motor and power density, calorific value also increases sharply.In order to ensure motor radiating
It is good quickly, allow rotor and stator to be maintained at long-term work under suitable temperature levels, electromotor cooling system is proposed more
Harsh requirement.Evaporation cooling technique cools down motor using the principle of evaporative cooling medium vaporization heat absorption.With traditional cooling
Mode is compared, Low Temperature Difference, the huge characteristic of caloric receptivity when evaporation cooling technique is utilized liquid refrigerant phase transformation, and cooling efficiency is high
And temperature uniformity is good.Can using high insulation, boiling point is suitable, non-ignitable not quick-fried, safe and stable, asepsis environment-protecting organic working medium,
The safe and stable operation of motor is effectively ensured.
Chinese patent CN201110385743.1 proposes a kind of stator evaporative cooling device, proposes inside stator core
Arrange that hollow pipe, hollow pipe are connected with the collection pendular ring sum aggregate vapour ring that stator two sides are installed, cooling medium is in closing pipe line
Inside circulation.Since motor stator winding calorific value is larger, it is therefore desirable to more skies be arranged in stator core or stator winding
Heart pipeline, while closed internal circulation requires every hollow pipe all to pass through connector to be connected with collector tube and dry pipe, therefore
Numerous at entire cooling system pipeline, connector, structure is complicated and constructional difficulties for system, and operation and maintenance are difficult, whole system
Reliability is low.Chinese patent CN200810114870.6 proposes horizontal pervaporatively cooling motor.Chinese patent
CN200510086794.9 proposes a kind of evaporation cooling construction for aerogenerator stator, using complete immersion formula structure
Stator interior sealing space is filled with evaporative cooling medium, the reliability of rigidity and sealing structure to distance sleeve propose compared with
High requirement increases difficulty to design of electrical motor, also improves the cost of motor.
Summary of the invention
Goal of the invention: the utility model provides a kind of full-liquid type evaporative cooling system cooling for motor, to solve
Certainly big, loss density is big, heat is difficult to quickly and effectively to shed, temperature rise is excessively high and seriously affects due to being lost for Large-power High-Speed motor
The technical issues of motor reliability and service life.
Technical solution: in order to achieve the above objectives, following technical solution can be used in the utility model:
A kind of full-liquid type evaporative cooling system cooling for motor, including motor, gas-liquid separator, compressor, oil
From device, condenser；Motor includes rotor, stator, stator cage, the ring-type wrapped between stator and rotor and by stator
Distance sleeve, the end cover for connecting sealing with stator cage positioned at distance sleeve both ends and by distance sleeve, the stator
Stator is wrapped in confined space by shell, distance sleeve, end cover jointly；
The casing lower part is equipped with the inlet being connected to the confined space；Casing top is equipped with and the confined space
The steam (vapor) outlet of connection；The steam (vapor) outlet is connect with gas-liquid separator, gas-liquid separator connect compressor, compressor connection oil
Separator, oil eliminator pass through condenser time again and are attached to gas-liquid separator formation condensing circuit, the bottom of the gas-liquid separator
Portion is connected to the inlet.
Further, the internal rotor is equipped with evaporation cooling duct, and cooling duct is the closing gold for being embedded in internal rotor
Belong to hollow pipe, the shaft of the rotor is equipped with implementation of port and liquid outlet, and implementation of port and liquid outlet are connected to cooling duct, are used
In being filled with cooling liquid organic working medium to the cooling duct.
Further, distance sleeve is mounted on the inner circle of stator core, and helicla flute, straight trough are used on the inside of the distance sleeve
Or snakelike conduit, distance sleeve inside are directly contacted with liquid organic working medium.
Further, metal hollow pipe aluminum pipe or copper pipe are closed.
Further, when motor works, rotor and stator heating temperature increase to form high temperature evaporation area, organic liquid working medium
Heated vaporization forms moist steam, enters gas-liquid separator along steam (vapor) outlet；Moist steam is inhaled into compressor by gas-liquid separator
After interior compression, isolating via oil eliminator, which becomes dry saturated steam after freezing working medium, enters condenser, exchanges heat with surrounding medium, condensation
After be back to inflow gas-liquid separator, liquid flows back to seal stator space lower part under the effect of gravity.
It further, further include expansion valve, which is connected between condenser and gas-liquid separator, and to condenser
The liquid of output carries out reducing pressure by regulating flow.
The utility model has the advantages that in general, having the above technical solutions conceived by the present invention are compared with the prior art,
There is following outstanding feature.
1, compared with the pipeline inner-cooled evaporative cooling system of conventional totally-enclosed circulation, the pipeline and piece-ups of required laying
Amount is few, and cooling medium is sealed in stator confined space by the seal isolation sleeve of stator inner circle setting, therefore each pipeline and connects
The sealing performance and technology difficulty of head require lower.
2, the full-liquid type evaporative cooling system cooling for motor described in the utility model, use scope is not by motor work
Make the influence of environment temperature, particularly, motor stator hull-skin temperature is allowed with environment temperature close to even lower field
It closes, the utility model has more obvious advantage.
3, the Phase cooling scheme that the utility model is evaporated by stator full-liquid type and the interior evaporation cooling of armature spindle combines,
Provided cooling system has excellent high-power samming cooling characteristics, can effectively solve modern electrical machine volume and become small, scattered
Summerday benefit is difficult, the local excessively high problem of rotor temperature rise, loses particularly suitable for effective permanent magnet high temperature solved in magneto
Magnetic problem, the safe operation for the Large-power High-Speed motor that can be greatly improved and service life.
Detailed description of the invention
Fig. 1 is the full-liquid type evaporative cooling system structural schematic diagram cooling for motor.
Fig. 2 is the structural profile illustration of motor part in the utility model.
Wherein, 1. rotor, 2. motor stators, 3. gas-liquid separators, 4. compressors, 5. oil eliminators, 6. condensers,
8. expansion valve, 21. stator cores, 22. stator winding, 801 and 808. stator steam (vapor) outlets, 802. end part seal end caps, 803.
Stator distance sleeve, 804. implementation of port, the inlet of 805 and 806. stator bottoms, 807 liquid outlets, 809. stator cages.
Specific embodiment
As shown in Figs.1 and 2, the utility model discloses a kind of full-liquid type evaporation cooling system cooling for motor
System, including motor, gas-liquid separator 3, compressor 4, oil eliminator 5, condenser 6, expansion valve 7.Motor includes rotor 1, stator
2, stator cage 809, wrapped between stator and rotor and by stator cyclic annular distance sleeve 803, be located at distance sleeve
Both ends and the end cover 802 that distance sleeve is connect to sealing with stator cage, the stator cage, distance sleeve, sealed end
Stator is wrapped in confined space by lid jointly.
The casing lower part is equipped with the inlet 805,806 being connected to the confined space.Casing top be equipped with it is described
The steam (vapor) outlet 801,808 of confined space connection；The steam (vapor) outlet is connect with gas-liquid separator 3, the connection pressure of gas-liquid separator 3
Contracting machine 4, compressor 4 connect oil eliminator 5, and oil eliminator 5 is returned by condenser 6 again is attached to the formation condensation of gas-liquid separator 3
The bottom in circuit, the gas-liquid separator 3 is connected to the inlet.Expansion valve 7 be connected to condenser 6 and gas-liquid separator 3 it
Between, and reducing pressure by regulating flow is carried out to the liquid that condenser 6 exports.
Evaporation cooling duct is equipped with inside the rotor 1, cooling duct is the closing metal hollow pipe for being embedded in internal rotor,
The shaft of the rotor is equipped with implementation of port 804 and liquid outlet 807, and implementation of port 804 and liquid outlet 807 connect with cooling duct
It is logical, for being filled with cooling liquid organic working medium to the cooling duct.It is good to close the preferred heating conduction of metal hollow pipe
Aluminum pipe or copper pipe, when being assembled with rotor core using interference fit.Implementation of port 804 and liquid outlet 807 are by independent working medium
Liquid coolant sources feed flow.
When motor works, rotor 1 and 2 heating temperature of stator increase to form high temperature evaporation area, and organic liquid working medium is by hot vapour
Change forms moist steam, enters gas-liquid separator 3 along steam (vapor) outlet 801；Moist steam is inhaled into compressor 4 by gas-liquid separator 3
After interior compression, become dry saturated steam after isolating freezing working medium via oil eliminator 5 and enter condenser 6, with surrounding medium (air or
Water) heat exchange, it is back to after condensation and flows into gas-liquid separator 3, liquid flows back to seal stator space lower part under the effect of gravity.
Distance sleeve is mounted on the inner circle of stator core 21, and helicla flute, straight trough or snakelike are used on the inside of the distance sleeve
Conduit, distance sleeve inside is directly contacted with liquid organic working medium, to increase evaporator section heat exchange area.
The evaporation is cooling with liquid organic working medium selection satisfaction height insulate, boiling point is suitable, it is safe and nontoxic, environmentally friendly to stablize
It is required that organic liquid such as R134a, R-113, R-114, RC-75 etc., can also select by the transformation of high insulation, good heat conduction effect
Device oil and evaporative cooling medium mixture.
It in practical applications, can be in full-liquid type described in the utility model if motor stator uses hollow core conductor
On the basis of evaporative cooling system, liquid organic working medium is allowed to be directly entered inside hollow core conductor, further improves stator conductors
Cooling effect.In practical applications, condenser can also select air-cooled, water-cooled or other coolings according to concrete application situation
Form.
The utility model implement the technical solution method and approach it is very much, the above is only the utility model
Preferred embodiment.It should be pointed out that for those skilled in the art, not departing from the utility model principle
Under the premise of, several improvement can also be made, these improvement also should be regarded as the protection scope of the utility model.In the present embodiment not
The available prior art of specific each component part is realized.
Claims (6)
1. a kind of full-liquid type evaporative cooling system cooling for motor, which is characterized in that including motor, gas-liquid separator (3),
Compressor (4), oil eliminator (5), condenser (6)；Motor includes rotor (1), stator (2), stator cage (809), is located at and determines
Son and rotor between and stator is wrapped cyclic annular distance sleeve (803), be located at distance sleeve both ends and by distance sleeve with
The end cover (802) of stator cage connection sealing, the stator cage, distance sleeve, end cover jointly wrap up stator
In confined space；
The casing lower part is equipped with the inlet (805) being connected to the confined space；Casing top is equipped with and the confined air
Between the steam (vapor) outlet (801) that is connected to；The steam (vapor) outlet is connect with gas-liquid separator (3), gas-liquid separator (3) connect compressor
(4), compressor (4) connection oil eliminator (5), oil eliminator (5) are returned by condenser (6) be attached to gas-liquid separator (3) again
Condensing circuit is formed, the bottom of the gas-liquid separator (3) is connected to the inlet.
2. the full-liquid type evaporative cooling system cooling for motor according to claim 1, it is characterised in that: the rotor
(1) internal to be equipped with evaporation cooling duct, cooling duct is the closing metal hollow pipe for being embedded in internal rotor, the shaft of the rotor
It is equipped with implementation of port (804) and liquid outlet (807), implementation of port (804) and liquid outlet (807) are connected to cooling duct, are used for
Cooling liquid organic working medium is filled with to the cooling duct.
3. the full-liquid type evaporative cooling system cooling for motor according to claim 1 or 2, it is characterised in that: isolation
Sleeve is mounted on the inner circle of stator core (21), should use helicla flute, straight trough or snakelike conduit, distance sleeve from sleeve inside
Inside is directly contacted with liquid organic working medium.
4. the full-liquid type evaporative cooling system cooling for motor according to claim 2, it is characterised in that: closing metal
Hollow pipe aluminum pipe or copper pipe.
5. the full-liquid type evaporative cooling system cooling for motor according to claim 1 or 2, it is characterised in that: motor
When work, rotor (1) and stator (2) heating temperature increase to form high temperature evaporation area, and the heated vaporization of organic liquid working medium forms wet
Steam enters gas-liquid separator (3) along steam (vapor) outlet (801)；Moist steam is inhaled into compressor (4) by gas-liquid separator (3)
After interior compression, isolating via oil eliminator (5), which becomes dry saturated steam after freezing working medium, enters condenser (6), changes with surrounding medium
Heat, is back to after condensation and flows into gas-liquid separator (3), and liquid flows back to seal stator space lower part under the effect of gravity.
6. the full-liquid type evaporative cooling system cooling for motor according to claim 5, it is characterised in that: further include swollen
Swollen valve (7), the expansion valve (7) are connected between condenser (6) and gas-liquid separator (3), and to the liquid of condenser (6) output
Carry out reducing pressure by regulating flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821798722.6U CN209184415U (en) | 2018-11-02 | 2018-11-02 | The full-liquid type evaporative cooling system cooling for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821798722.6U CN209184415U (en) | 2018-11-02 | 2018-11-02 | The full-liquid type evaporative cooling system cooling for motor |
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| Publication Number | Publication Date |
|---|---|
| CN209184415U true CN209184415U (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821798722.6U Expired - Fee Related CN209184415U (en) | 2018-11-02 | 2018-11-02 | The full-liquid type evaporative cooling system cooling for motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361292A (en) * | 2018-11-02 | 2019-02-19 | 南京林业大学 | A kind of full-liquid type evaporative cooling system cooling for motor |
-
2018
- 2018-11-02 CN CN201821798722.6U patent/CN209184415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361292A (en) * | 2018-11-02 | 2019-02-19 | 南京林业大学 | A kind of full-liquid type evaporative cooling system cooling for motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201105 Address after: 210000 810b, building B, building 4, Nanjing Baixia high tech Industrial Park, No. 6, Yongzhi Road, Qinhuai District, Nanjing, Jiangsu Province Patentee after: Nanjing kulinmei Electromechanical Technology Co.,Ltd. Address before: Nanjing City, Jiangsu province 210037 Longpan Road No. 159 Patentee before: NANJING FORESTRY University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20211102 |