CN108512360B - Double cooling device for turbine motor - Google Patents
Double cooling device for turbine motor Download PDFInfo
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- CN108512360B CN108512360B CN201810460600.4A CN201810460600A CN108512360B CN 108512360 B CN108512360 B CN 108512360B CN 201810460600 A CN201810460600 A CN 201810460600A CN 108512360 B CN108512360 B CN 108512360B
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- refrigerant
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
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- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a double cooling device of a turbine motor, comprising: the air-conditioning device comprises a stator for receiving power supply to generate magnetic force, a rotor magnetized and rotated by the stator, and an impeller which is arranged at the end part of the rotor and rotates together with the rotor to convey air; the motor is arranged in the stator, a freezing refrigerant flow path is formed in the stator, a refrigerant inlet is formed at the lower part of the freezing refrigerant flow path taking the motor as the center, and a refrigerant outlet is formed at the upper part of the freezing refrigerant flow path; the jacket is arranged outside the stator and seals the refrigerant flow path; the inner part of the jacket is connected with the outer surface of the stator; and the outer surface of the jacket is covered with an air flow passage for passing cooling air.
Description
Technical Field
The invention relates to the field of turbine motors, in particular to a double cooling device of a turbine motor.
Background
The motor is a machine which depends on electric power to rotate and generates power by generating rotating force on a shaft, the direct-connection type turbine motor in the motor enables insulated enameled wires wound on a silicon steel plate to generate electromagnetic force, a rotor provided with a permanent magnet rotates, a bearing is arranged for supporting the rotor to rotate smoothly, and the motor is used in the fields of air blowers and air or gas compression.
A centrifugal turbo motor is used for a turbo fan or a turbo compressor, and since such a high-speed turbo motor uses an electric ac converter for high-speed rotation of a rotor, heat is generated from an electric appliance, and this heat shortens the service life and damages other components.
In order to cool the generated heat, various cooling devices are used, and the cooling system is mainly an air cooling system in which air is circulated and a water cooling system in which a circulating cooling water cools a motor.
There are many techniques related to cooling of a turbine motor, and the methods described in patent document 1 (korean registration No. 10-0572849) and patent document 2 (korean registration No. 10-1607492) are taken as examples.
Patent document 1 (korean registration No. 10-0572849): the air-cooling device comprises an air supply part for conveying air, a shell part with an opening part for air to flow in is formed on one side of the air supply part, an air gap is formed between a stator supporting the motor and a rotor stator and a rotor in an inner housing supporting the motor in the shell part, a hollow rotating shaft combined with the rotor is formed, an impeller connected with the rotating shaft of the motor and communicated with the air supply part is arranged at the front end of the inner housing, the impeller is communicated with the opening part and is connected with the rotating shaft of the motor, a cooling fan communicated with the impeller is arranged in the space between the impeller and the opening part formed by surrounding the outer part of the inner housing, an open oil path communicated with the cooling blade part is formed, and an air outlet path hole communicated with the impeller is formed in an air inlet path hole communicated with the hollow rotating shaft and the cooling fin part.
Patent document 2 (korean registration No. 10-1607492): a cooling structure of a turbo fan, a cylindrical motor housing, a stator installed in the motor housing and including a rotor therein, a seal formed at both sides of the stator for passing air through a coil outer ring formed with a cooling air passage hole, a flange for forming a passage hole through one side of the rotor, a first volute combined with one side of the flange and a first volute to prevent fluid leakage, a volute including the seal, a baffle formed between the motor housing and a cooling fan, a bearing housing having a bearing for supporting a rotor to rotate, a first impeller formed at one side of the volute, a first volute wrapping one side of the first impeller, guiding a flow generated by the first impeller to convert a kinetic energy of the fluid into a positional energy, a first turbine cover wrapping the first impeller and the first volute to be combined so that the air can smoothly flow when the first impeller rotates at a high speed to generate pressure, the device comprises a suction inlet used for air inflow, a first nozzle combined with one side of a first volute cover, a cooling fan combined with one side of the volute, an impeller seat formed on one side of a baffle plate and used for preventing fluid from leaking outwards, a gingko cooling fan, an impeller volute used for spitting out fluid, a cooling cover formed on one side of the impeller volute and used for discharging cooling air, a cover plate formed on one side of the volute, a second impeller formed on one side of the cover plate, a second volute used for wrapping one side of a second page and used for guiding the flow generated by the second page and converting kinetic energy into position energy, and a second nozzle used for wrapping one side of the second volute and used for gathering one side of the second volute, and comprises a structure that according to the outer diameter of a motor, a plurality of first hole parts formed on the upper side of a motor coil on one side of the cover plate, a plurality of second hole parts formed at intervals along the upper part of the coil on the side of the outer diameter of the cover plate side, and a plurality of third hole parts formed on the periphery of the motor coil on, and the direct-connection driving type double-turbine fan cooling structure is characterized in that the stator is cooled by air flowing in through the second hole site part when the cooling fan acts, the first impeller coil measuring part, the bearing seat and the rotor are cooled by the air flowing in through the first hole site part and the air flowing in through the second hole site part, the bearing seat and the rotor are cooled by the air flowing in through the third hole site part and the coil part, and the air inside the second hole site part side bearing seat and the coil is cooled by the air after the bearing seat and the rotor are cooled, and then the air inside the circulation is discharged to the outside through a cooling cover formed by a cooling impeller volute casing.
In the cooling apparatus for a turbo motor having such a structure, as shown in fig. 4, a cooling fan is installed on one shaft of the motor, or air is additionally installed to supply air to the cooling fan for cooling, so that the cooling efficiency is lowered due to low heat absorption efficiency of air, the cooling efficiency of the motor is further lowered when the external atmospheric temperature is high, and the air cooling method requires a complicated process such as installing an impeller using the rotational force of the motor to the motor or additionally installing a blower fan to the outside of the motor as an air forced circulation method.
In addition, the water-cooling type cooling method, as shown in fig. 5, has a problem that the installation of impellers at both ends of the motor can improve the working efficiency, but requires many auxiliary materials such as a circulation pump, a heat exchanger, a water tank, a pipeline, and the like, requires relatively much labor, and does not significantly cool the motor due to the relatively much labor.
The water-cooled turbine motor, which is a device using a high voltage, may leak water, which may cause a serious safety accident and cause a safety hazard, and thus, may be used.
The structure of sucking air through the opening on one side of the air cooling type motor for circulating air by the cooling fan to cool each part of the motor and finally cooling the bearing part of the sucked part is utilized, and abnormal vibration is finally formed in such an air cooling circulation mode because the difference between the temperature for starting cooling and the temperature for finally cooling is larger and the motor receives more sub-normal loads.
The limitation of this configuration is that the externally introduced air absorbs the heat of the stator and then continues to cool one side bearing part of the motor, absorbing the heat energy of the bearing part, and the heated air continues to pass through between the rotor and the stator to absorb the air friction heat between the rotor and the nails and is discharged from the bearings at both ends, so that the heated air cools the motor and the bearing at the other side as a motor to cause a relatively serious thermal deviation.
Disclosure of Invention
The present invention is directed to provide a dual cooling structure of a turbine motor, which can more effectively cool the turbine motor, in view of the above-mentioned drawbacks of the prior art.
According to the present invention, there is provided a dual cooling apparatus of a turbo motor, including: the stator is used for receiving power supply to generate magnetic force; a rotor that rotates by virtue of stator magnetization; an impeller mounted on the end of the rotor and rotating together with the rotor to convey air; the motor is arranged in the stator, a freezing refrigerant flow path is formed in the stator, a refrigerant inlet is formed at the lower part of the freezing refrigerant flow path taking the motor as the center, and a refrigerant outlet is formed at the upper part of the freezing refrigerant flow path; the jacket is arranged outside the stator and seals the refrigerant flow path; the inner part of the jacket is connected with the outer surface of the stator; and the outer surface of the jacket is covered with an air flow passage for passing cooling air.
Preferably, the air flow passage is internally formed with at least one air inflow port penetrating the side wall of the housing.
The double cooling device of the turbine motor also comprises a heat exchanger which is connected with the inner flow path of the jacket through a refrigerant flow path so as to condense high-temperature steam discharged from the refrigerant outlet into low-temperature and low-pressure refrigerant and circulate the low-temperature and low-pressure refrigerant to the refrigerant inlet.
The double cooling device of the turbine motor further comprises a freezing refrigerant steam discharge pipeline which is changed into steam through the motor in the freezing refrigerant pipeline, and a freezing refrigerant steam circulating pump for circulating the steam is arranged on the freezing refrigerant steam discharge pipeline.
Preferably, the inner flow path of the jacket is formed in an upright shape so that the refrigerant therein naturally moves toward the upper portion of the motor.
Preferably, a heat exchanger is provided at an air inflow port of the impeller for condensing the high temperature steam by means of inflow air according to driving of the impeller.
Preferably, the dual cooling device of the turbo motor further includes a buffer tank disposed between the liquid check valve and the heat exchanger, for storing condensed liquid refrigerant passing through the heat exchange.
Preferably, the dual cooling apparatus of the turbo motor further includes a liquid check valve disposed at a portion of the freezing refrigerant flow path to which the freezing refrigerant inlet of the motor is connected, for preventing a reverse flow of the refrigerant.
Preferably, the dual cooling device of the turbo motor further includes a gas check valve for preventing the gasified refrigerant from flowing backward to the motor in a pipe connected to the refrigerant outlet.
Preferably, the impeller inflow air inlet directs external air through the heat exchanger into the air shroud of the impeller.
The cooling structure of the turbine motor using the heat exchanger principle according to the present invention is a cooling structure of the turbine motor including a stator generating magnetic force by receiving power supply, a rotor rotated by magnetization of the stator, and a turbine fan installed at an end of the rotor to rotate an impeller for delivering air together with the rotor. The stator is externally mounted, a formed refrigerant flow path is centered on the motor, a refrigerant inlet is formed at the lower part, a refrigerant outlet is formed at the upper part, the refrigerant flow path is sealed outside the jacket, the jacket passes through an air cover shell of air, more than one air flow channel is formed inside the air cover shell, more than one air inflow port is formed inside the air flow channel and penetrates through the shell of the side wall, the refrigerant flow path of the jacket is connected through a refrigerant channel, high-temperature steam discharged from the refrigerant outlet is cooled and then converted into low-temperature and low-pressure liquid refrigerant, and a refrigerant steam circulating pump for circulating the refrigerant is arranged on a pipeline for discharging the vaporized refrigerant through the motor in a refrigerant outlet circulating heat exchanger and a freezing refrigerant.
The flow path formed in the jacket is processed in an upright mode, the surface area is increased, and then a plurality of heat conducting grooves are formed, so that the heat energy of the stator can be quickly absorbed and conducted to a refrigerant.
The heat exchanger has an impeller for introducing the engineering air at an air inlet, and is driven by the impeller to cool the high-temperature refrigerant by the inflow air for condensation.
The refrigerant channel can be provided with a storage tank for storing condensed refrigerant.
The best proposal is that the part of the refrigerant flow path connected with the refrigerant inlet of the motor is a check valve for preventing the refrigerant from flowing back so that the refrigerant can naturally flow into the jacket of the motor and preventing the refrigerant from flowing back, and the refrigerant outlet is provided with a gas retaining check valve for preventing the backflow of refrigerant steam.
The inlet of the impeller air can be provided with a flow guide device for the external air flowing into the impeller through the heat exchanger.
The double cooling structure of the turbine motor according to the present invention can greatly improve the cooling efficiency of the motor by cooling the motor using the air-cooling type and water-cooling type double structure. The lower part of the motor supplies cold freezing refrigerant to absorb heat generated by the motor and then the heated steam is concentrated and discharged to the outside, so that the flow of the freezing refrigerant is smoother, the cooling efficiency is improved, the discharged freezing refrigerant steam is subjected to heat exchange condensation and is changed into liquid freezing refrigerant again for circulation, the freezing refrigerant utilizes air sucked by the impeller to perform heat exchange condensation, other unnecessary devices are not used, the cooling device is simplified, and the effect of simple and convenient manufacture is achieved. The whole motor can be uniformly cooled, the problems of motor fatigue, unstable dynamic balance, noise and the like caused by thermal unbalance are reduced, the stability of an electrical system is maintained, the motor efficiency is improved, and the service life is prolonged.
Drawings
A more complete understanding of the present invention, and the attendant advantages and features thereof, will be more readily understood by reference to the following detailed description when considered in conjunction with the accompanying drawings wherein:
fig. 1 schematically shows a turbo fan configuration of a cooling configuration using a heat exchanger according to a preferred embodiment of the present invention.
FIG. 2 schematically illustrates a plan view of a portion of a turbo-fan of a cooling configuration utilizing a heat exchanger, according to a preferred embodiment of the present invention.
Fig. 3 schematically shows a turbo fan cooling fluid circulation configuration diagram of a cooling configuration using a heat exchanger according to a preferred embodiment of the present invention.
Fig. 4 is a schematic diagram of a prior art structure.
Fig. 5 is a schematic view of another prior art structure.
Description of the reference numerals:
10: jacket
10 i: freezing refrigerant inlet
10 o: refrigerant outlet
11: heat conduction groove
20: air flow passage
30: outer casing
30i, and (b); air inlet
30 o: air outlet
40: heat exchanger
40 g: air flow guiding cover
50: freezing refrigerant steam circulating pump
60: buffer tank
70: liquid check valve
80: gas check valve
100: electric machine
110: stator
120: rotor
130: impeller
Lr: refrigerant flow path
It is to be noted, however, that the appended drawings illustrate rather than limit the invention. It is noted that the drawings representing structures may not be drawn to scale. Also, in the drawings, the same or similar elements are denoted by the same or similar reference numerals.
Detailed Description
In order that the present disclosure may be more clearly and readily understood, reference will now be made in detail to the present disclosure as illustrated in the accompanying drawings.
The present invention will be described in detail below with reference to a dual cooling structure in which an air cooling structure and an internal circulation refrigerant form a freezing and cooling flow path to perform dual cooling and improve the cooling efficiency of a motor. In the present invention, the high-output turbo fan is configured by both an air-cooling type and a refrigerant circuit type, and the cooling efficiency is improved. An air flow path is formed between the rotor and the stator, the motor is cooled by air, a freezing refrigerant loop is arranged outside the stator to form cooling, and the cooling efficiency is improved.
The invention combines the air cooling type and the refrigeration refrigerant loop type to improve the cooling efficiency, and the heat exchanger utilizes the impeller to suck air to drive, thereby saving unnecessary energy consumption to cool the motor. The invention provides a double cooling structure using a motor, which is provided with an air cooling method using air and a cooling method using a freezing refrigerant.
Fig. 1 schematically shows a turbo fan configuration of a cooling configuration using a heat exchanger according to a preferred embodiment of the present invention. FIG. 2 schematically illustrates a plan view of a portion of a turbo-fan of a cooling configuration utilizing a heat exchanger, according to a preferred embodiment of the present invention. Fig. 3 schematically shows a turbo fan cooling fluid circulation configuration diagram of a cooling configuration using a heat exchanger according to a preferred embodiment of the present invention.
As shown in the drawing, the casing 30 has a jacket 10 through which a refrigerant passes and an air flow passage 20 through which outside air flows, and includes, for example, a heat exchanger 40 and a refrigerant vapor circulation pump 50 that cool a motor and then re-liquefy and exchange heat with a vaporized refrigerant.
As shown in the drawings, the dual cooling apparatus of a turbo motor according to the preferred embodiment of the present invention includes a stator 110 receiving power supply to generate magnetic force and a rotor 120 rotating by magnetization of the stator, and an impeller 130 installed at an end of the rotor to rotate together with the rotor to deliver air.
For example, as shown in fig. 1 and 3, the jacket 10 is provided outside the stator, and has a refrigerant passage formed outside, a refrigerant inlet 10i formed at a lower portion with respect to the motor, and a refrigerant outlet 10o formed at an upper portion. The refrigerant inlet 10i and the refrigerant outlet 10o are provided with ports penetrating the housing, and can be easily connected to the refrigerant passage Lr.
The inner part of the jacket 10 is connected with the outer surface of the stator, and a plurality of heat-conducting grooves 11 are arranged on the flow path part formed outside; as shown in the figure, the heat conduction grooves 11 are formed in a plurality, and these can transmit the heat of the stator to the refrigerant more quickly, thereby improving the cooling efficiency. The refrigerant passage formed by the heat conduction groove 11 is sealed by the case 30. The jacket 10 has a refrigerant passage formed on the outer peripheral surface thereof, and the open portion of the jacket is closed by a housing to form the entire refrigerant passage. The air flow path 20 may be separately formed, but this method complicates the cooling structural components, and therefore a groove is formed at one portion of the housing to form the air flow path 20 through which air flows. The air flow path 20 covers the outside of the jacket, and moves the air flowing in at least one air flow port 30i formed through the housing.
The air flowing in through the air inlet 30i shown in fig. 1 passes through the air flow path, passes through the space between the rotor and the stator to absorb heat energy, and is blown together with the compressed air by the pressure of the air blown by the impeller 130. In other words, after the impeller is driven, a low pressure is formed between the stator and the rotor, and the air flowing through the air inlet 30i of the housing flows into the housing to move like the impeller to absorb the heat energy of the rotor and the stator.
As shown in fig. 3, the refrigerant flowing into the jacket is maintained at a relatively lower temperature in the lower portion of the motor than in the upper portion.
The coolant inlet 10i and the coolant outlet 10o formed in the jacket 10 form a coolant inlet 10i for allowing cold coolant to flow into the lower portion of the motor and a coolant outlet 10o for allowing heated coolant to be naturally discharged from the upper portion thereof by utilizing the heat cycle principle of the coolant. The refrigerant naturally flows into the refrigerant inlet 10i, is converted into high-temperature steam by the heat absorption of the jacket and evaporated, and is discharged to the outside through the refrigerant outlet 10 o. The refrigerant vapor thus discharged is condensed by heat exchange again and supplied to the heat exchanger 40.
The heat exchanger 40 is disposed in the middle of the refrigerant passage Lr connecting the refrigerant inlet 10i and the refrigerant outlet 10o, and high-temperature vapor discharged from the refrigerant outlet is condensed and then circulated to the refrigerant inlet as a low-temperature liquid refrigerant. The heat exchanger 40 may be made in various forms, but it is preferable that the refrigerant vapor flowing into the upper refrigerant outlet 10o is cooled to naturally flow downward. The heat exchanger 40 exchanges heat of the refrigerant with the atmosphere, but may forcibly circulate air in order to improve heat exchange efficiency. However, the air circulation of the heat exchanger is increased, and the air supply equipment has the defects of complex structure and increased energy consumption.
The present invention is provided with a heat exchanger 40 at an air inlet of an impeller 130 for introducing process air, in order to utilize air blowing by the impeller. The heat exchanger condenses high-temperature steam by utilizing air flowing in by the impeller through the driving of the impeller. In order to drive the heat exchanger by the working air sucked in when the impeller is driven, the sucked air should pass through the heat exchanger, and an air guide cover 40g for the inflow of the external air into the impeller through the heat exchanger should be provided at the inlet of the inflow air of the impeller for this purpose. The present invention includes a refrigerant vapor circulation pump 50 provided in a refrigerant flow path Lr. As shown in the drawing, the freezing refrigerant vapor circulation pump 50 is connected to the freezing refrigerant line Lr and the freezing refrigerant discharge port 10o is connected to the freezing refrigerant line. The heat energy of the motor is absorbed by the motor, and the gasified refrigerant is circulated by the freezing refrigerant steam circulating pump through the pipeline and circulated to the heat exchanger 40. The freezing refrigerant of the invention is discharged from the upper part of the motor, so the moving freezing refrigerant can be sublimated by self to naturally circulate by the temperature difference, but if the freezing refrigerant steam circulating pump 50 is arranged, the circulation is smoother, and two check valves 70 and 80 are arranged for preventing the refrigerant from flowing backwards when the circulating pump does not work. One of the check valves 70 and 80 is a liquid check valve 70 which acts on a portion of the freezing refrigerant passage Lr connected to the freezing refrigerant inlet 10i of the motor to prevent the refrigerant from flowing backward and naturally flows to the motor portion, and the other check valve 80 is a gas check valve which prevents the gasified freezing refrigerant from flowing backward in the motor direction in a pipe connected to the freezing refrigerant outlet.
The present invention includes a buffer tank 60 on the freezing refrigerant flow path. The buffer tank 60 is disposed between the liquid check valve 70 and the heat exchanger 40, and stores condensed liquid refrigerant that is subjected to heat exchange.
The turbine motor of the cooling structure who constitutes is through the experiment, and the experimental result, and the motor coil temperature I120 ℃ before the cooling device starts when atmospheric temperature 22 degrees, and the rotor temperature is 222 degrees centigrade, and the exhaust gas temperature is 95 degrees centigrade, and the motor coil temperature is 7 degrees centigrade after the cooling device starts on the contrary, and the rotor temperature is 58 degrees centigrade, and the exhaust temperature is 18 degrees centigrade, and the cooling effect has by a wide margin improvement.
It can be seen that the invention is a turbine motor double cooling structure which forms an air flow path between a rotor and a stator to form cooling, the stator is arranged outside and forms a freezing refrigerant flow path inside, the cooling efficiency of the motor is improved by the freezing refrigerant, the turbine motor double cooling structure is arranged outside the stator to form the freezing refrigerant flow path, the motor is used as a center, the lower part of the turbine motor double cooling structure forms a freezing refrigerant inlet, the upper part of the turbine motor double cooling structure forms a refrigerant outlet, the freezing refrigerant flow path is sealed outside the jacket, the turbine motor double cooling structure passes through an air cover shell of air, more than one air flow channel is formed inside the air cover shell, more than one air inlet is formed inside the air flow channel and penetrates through a shell of a side wall, the freezing refrigerant flow path of the jacket is connected through a refrigerant channel, high-temperature steam discharged from the refrigerant outlet is cooled and converted into low-temperature low-pressure refrigerant, and the freezing refrigerant steam circulating pump of freezing refrigerant steam is characterized.
In addition, it should be noted that the terms "first", "second", "third", and the like in the specification are used for distinguishing various components, elements, steps, and the like in the specification, and are not used for representing a logical relationship or a sequential relationship between the various components, elements, steps, and the like, unless otherwise specified.
It is to be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, it is not intended to limit the invention to those embodiments. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (9)
1. A dual cooling apparatus of a turbo-machine, characterized by comprising:
the stator is used for receiving power supply to generate magnetic force;
a rotor that rotates by virtue of stator magnetization;
an impeller mounted on the end of the rotor and rotating together with the rotor to convey air;
the motor is arranged in the stator, a freezing refrigerant flow path is formed in the stator, a refrigerant inlet is formed at the lower part of the freezing refrigerant flow path taking the motor as the center, and a refrigerant outlet is formed at the upper part of the freezing refrigerant flow path; the jacket is arranged outside the stator and seals the refrigerant flow path; the inner part of the jacket is connected with the outer surface of the stator; and the outer surface of the jacket is covered with an air flow passage for passing cooling air; the heat exchanger is provided at an air inflow port of the impeller for condensing the high temperature steam by means of inflow air according to driving of the impeller.
2. The dual cooling apparatus of a turbo motor according to claim 1, wherein at least one air inflow port penetrating the side wall of the housing is formed inside the air flow passage.
3. The dual cooling apparatus for a turbo motor according to claim 1 or 2, further comprising a heat exchanger connected to the inner flow path of the jacket through a refrigerant flow path to condense high-temperature steam discharged from the refrigerant outlet into a low-temperature and low-pressure refrigerant, and to circulate the refrigerant to the refrigerant inlet.
4. The dual cooling apparatus of a turbo motor according to claim 1 or 2, further comprising a refrigerant vapor discharge line that is changed into vapor by the motor in the refrigerant vapor discharge line, wherein a refrigerant vapor circulation pump that circulates the vapor is provided in the refrigerant vapor discharge line.
5. The double cooling apparatus for a turbo motor according to claim 1 or 2, wherein the inner flow path of the jacket is formed in a vertical shape so that the refrigerant therein naturally moves toward the upper portion of the motor.
6. The dual cooling apparatus of a turbo motor according to claim 1 or 2, further comprising a buffer tank disposed between the liquid check valve and the heat exchanger for storing condensed liquid refrigerant by heat exchange.
7. The dual cooling apparatus of a turbo motor according to claim 1 or 2, further comprising a liquid check valve disposed at a portion of the freezing refrigerant flow path where the freezing refrigerant inlet of the motor is connected, for preventing a reverse flow of the refrigerant.
8. The dual cooling apparatus of a turbo motor according to claim 1 or 2, further comprising a gas check valve for preventing the gasified refrigerant from flowing backward toward the motor in a pipe connected to the refrigerant outlet.
9. The dual cooling apparatus of a turbo motor according to claim 1 or 2, wherein the inlet of the inflow air of the impeller guides the external air to flow into the air guide sleeve of the impeller through the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460600.4A CN108512360B (en) | 2018-05-15 | 2018-05-15 | Double cooling device for turbine motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460600.4A CN108512360B (en) | 2018-05-15 | 2018-05-15 | Double cooling device for turbine motor |
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| CN108512360A CN108512360A (en) | 2018-09-07 |
| CN108512360B true CN108512360B (en) | 2020-04-10 |
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| KR101988936B1 (en) * | 2018-10-30 | 2019-06-13 | 터보윈 주식회사 | Blower for fuel cell |
| CN112564417A (en) * | 2019-09-26 | 2021-03-26 | 襄阳中车电机技术有限公司 | New energy automobile permanent magnet motor |
| CN113014033B (en) * | 2021-04-23 | 2022-03-22 | 厦门力德动力科技有限公司 | Internal heat dissipation system of turbine generator |
| JP7228073B1 (en) * | 2022-09-07 | 2023-02-22 | 日機装株式会社 | Pumping device, pumping system and method of operating the pumping system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101458003A (en) * | 2007-12-12 | 2009-06-17 | 何君 | Cold air machine driven by floating bearing type high-speed electric machine with contact protection bearing |
| US8516850B2 (en) * | 2008-07-14 | 2013-08-27 | Johnson Controls Technology Company | Motor cooling applications |
| CN201910691U (en) * | 2010-12-31 | 2011-07-27 | 上海东润换热设备制造有限公司 | Engine seat with novel cooling jacket |
| CN102055283A (en) * | 2011-01-18 | 2011-05-11 | 北京鹏发欣光电力电子科技有限公司 | Evaporation cooling permanent magnet motor |
| CN102185420A (en) * | 2011-05-13 | 2011-09-14 | 东方电气（乐山）新能源设备有限公司 | Cooling system of 2MW wind driven generator |
| CN103997162A (en) * | 2014-05-02 | 2014-08-20 | 宁波市成大机械研究所 | Air-air cooled high-voltage high-efficiency motor |
| KR101580877B1 (en) * | 2015-06-05 | 2015-12-30 | 터보윈 주식회사 | Turbo blower cooling Structure of Direct drive type |
| JP6668161B2 (en) * | 2016-05-11 | 2020-03-18 | 株式会社マーレ フィルターシステムズ | Turbocharger |
| DE102016110658A1 (en) * | 2016-06-09 | 2017-12-14 | Rainer Puls | Cooling housing for an electric motor |
| CN107994735B (en) * | 2018-01-25 | 2024-02-06 | 博远机电（嘉兴）有限公司 | Motor cooling system |
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| CN108512360A (en) | 2018-09-07 |
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