CN215221953U - High-speed magnetic suspension motor cooling system based on organic Rankine cycle - Google Patents
High-speed magnetic suspension motor cooling system based on organic Rankine cycle Download PDFInfo
- Publication number
- CN215221953U CN215221953U CN202122584922.XU CN202122584922U CN215221953U CN 215221953 U CN215221953 U CN 215221953U CN 202122584922 U CN202122584922 U CN 202122584922U CN 215221953 U CN215221953 U CN 215221953U
- Authority
- CN
- China
- Prior art keywords
- working medium
- cooling
- motor
- rankine cycle
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 163
- 239000000725 suspension Substances 0.000 title description 25
- 238000009434 installation Methods 0.000 claims abstract description 31
- 238000005339 levitation Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009834 vaporization Methods 0.000 abstract description 8
- 230000008016 vaporization Effects 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 16
- 238000005457 optimization Methods 0.000 description 9
- 238000010992 reflux Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002440 industrial waste Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
本实用新型公开了一种基于有机朗肯循环的高速磁悬浮电机冷却系统，包括高速磁悬浮电机和有机朗肯循环回路，高速磁悬浮电机包括电机外壳，电机外壳内开设有安装空腔，安装空腔内安装有定子，定子的中部转动安装有转子，电机外壳上开设有与安装空腔相连通的第一工质进口，定子的外表面与电机外壳的内表面之间设置有冷却流道体，所述冷却流道体上开设有冷却流道，电机外壳的外表面上开设有第二工质进口和第二工质出口，第二工质进口和第二工质出口分别与冷却流道相互连通，本实用新型整体结构简单，能够利用有机工质的汽化潜热对电机降温，并且冷却流道的横截面积小，能够减小电机的整体尺寸，并且还能够对电机进行全面且高效的冷却。
The utility model discloses a high-speed magnetic levitation motor cooling system based on organic Rankine cycle, comprising a high-speed magnetic levitation motor and an organic Rankine cycle loop. A stator is installed, a rotor is rotatably installed in the middle of the stator, a first working medium inlet communicated with the installation cavity is opened on the motor casing, and a cooling flow channel body is arranged between the outer surface of the stator and the inner surface of the motor casing, so The cooling flow channel body is provided with a cooling flow channel, the outer surface of the motor casing is provided with a second working medium inlet and a second working medium outlet, and the second working medium inlet and the second working medium outlet are respectively communicated with the cooling flow channel. The overall structure of the utility model is simple, the latent heat of vaporization of the organic working medium can be used to cool the motor, and the cross-sectional area of the cooling flow channel is small, the overall size of the motor can be reduced, and the motor can be fully and efficiently cooled.
Description
Technical Field
The utility model belongs to the technical field of the magnetic suspension motor, specific theory relates to a high-speed magnetic suspension motor cooling system based on organic rankine cycle.
Background
China is a big energy consumption country, industrial energy consumption accounts for 70% of total energy consumption, at least 50% of industrial energy consumption is directly abandoned by waste heat in various forms and is discharged into the air, so that the China not only causes huge waste on energy, but also causes great pollution on the environment, and has important practical significance in recycling low-grade heat energy discharged by industries such as industry and the like; the organic Rankine cycle based on low-grade heat energy utilization is an effective measure and means for reducing energy and fuel consumption, saving energy and reducing emission.
In an organic rankine cycle system, an expander is a core device; the expansion machine is driven by a high-speed motor, the motor can generate heat due to factors such as iron loss, copper loss and mechanical loss in the operation process, the generated heat needs to be dissipated in time, otherwise, the temperature in the motor is increased, so that the problems of aging of an insulating material, demagnetization of a rotor, reduction of mechanical strength and the like of the motor occur, and the service life is influenced.
The existing common motor cooling mode is wind cooling and water cooling; as in patent application No.: CN201721420646.0, a magnetic suspension motor casing for compressor is disclosed, which comprises a motor housing, the inside cooling runner that is equipped with of motor housing lateral wall, motor housing's one end is equipped with flange, the other end is equipped with the end cover, it has bearing control line to draw forth mouthful and motor power cord to draw forth mouthful to open on motor housing's the lateral wall, motor housing's lateral surface is equipped with bearing control line shrouding and power cord shrouding, it draws forth the hole to be equipped with the bearing signal line on the bearing control line shrouding, be equipped with power cord wiring post hole on the power cord shrouding, the position that motor housing lateral wall corresponds cooling runner is equipped with the cooling shrouding, be equipped with cooling liquid import and cooling liquid export on the cooling shrouding, still be equipped with cooling gas import and cooling gas export on the motor housing.
The shell of the magnetic suspension motor directly introduces refrigerant gas in a refrigeration system, so that the refrigerant gas is filled in a gap between a rotor and a stator to realize the internal cooling of the motor; in addition, refrigerant liquid led out from the refrigerating system circulates in the spiral cooling flow channel, so that the stator is cooled again, and the cooling effect is ensured; but the cooling runner on this type of magnetic suspension motor housing is seted up on motor housing's lateral wall, and the cross-sectional area of cooling runner is big, causes this motor housing's whole size big, improves whole weight and manufacturing cost to this cooling runner encapsulates through the cooling shrouding, and its overall structure is complicated, and the cooling shrouding installation is inconvenient, causes the equipment loaded down with trivial details, reduces the practicality.
In order to solve the above problems, a generator cooling device has also appeared on the market, as the patent application number: CN201521106026.0 discloses a device for cooling a generator by utilizing a working medium in organic Rankine cycle, which comprises an evaporator, a turbine generator set, a condenser and a working medium pump which are sequentially connected and form organic working medium cycle, wherein the turbine generator set comprises an organic turbine and a generator; part of organic working medium is led out from the outlet of the working medium pump and flows through a cooling channel arranged on the generator, and the part of organic working medium returns to the organic working medium circulation after passing through the generator, and the rotor and the shell of the generator are cooled by the organic working medium.
The cooling device can introduce the organic working medium into the cooling channel on the generator, and the organic working medium can absorb heat and cool the rotor, the shell and other parts in the generator when flowing in the cooling channel, so as to cool the generator, and then the organic working medium is circulated back to the organic Rankine cycle loop after absorbing heat.
But this type of current cooling device overall structure is simple, only can cool off casing and rotor, can not cool off other spare parts in the motor, causes the cooling to the motor comprehensive inadequately, and then causes cooling effect poor, reduces the result of use.
SUMMERY OF THE UTILITY MODEL
The to-be-solved main technical problem of the utility model is to provide a simple structure can utilize the latent heat of vaporization of organic working medium to the motor cooling to the cross-sectional area of cooling runner is little, can reduce the whole size of motor, and can carry out comprehensive and high-efficient refrigerated high-speed magnetic suspension motor cooling system based on organic rankine cycle to the motor.
In order to solve the technical problem, the utility model provides a following technical scheme:
the high-speed magnetic suspension motor cooling system based on the organic Rankine cycle comprises a high-speed magnetic suspension motor and an organic Rankine cycle loop, wherein the high-speed magnetic suspension motor comprises a motor shell, an installation cavity is formed in the motor shell, a stator is installed in the installation cavity, a rotor is installed in the middle of the stator in a rotating mode, a first working medium inlet communicated with the installation cavity is formed in the motor shell, a cooling flow channel body is arranged between the outer surface of the stator and the inner surface of the motor shell, a cooling flow channel is formed in the cooling flow channel body, a second working medium inlet and a second working medium outlet are formed in the outer surface of the motor shell, and the second working medium inlet and the second working medium outlet are respectively communicated with the cooling flow channel.
The following is the utility model discloses to above-mentioned technical scheme's further optimization:
the outer surface diameter of the cooling runner body is matched with the inner surface diameter of the mounting cavity, the cooling runner body is fixedly mounted in the mounting cavity, the cooling runner is spiral and is arranged on the outer surface of the cooling runner body, and the outer surface of the cooling runner body is connected with the inner surface of the mounting cavity in a sealing mode and used for packaging the cooling runner.
Further optimization: the middle part of the cooling flow channel body is provided with a mounting cavity, the stator is fixedly mounted in the mounting cavity in the middle part of the cooling flow channel body, the outer surface of the stator is tightly connected with the inner surface of the mounting cavity in the middle part of the cooling flow channel body, and the organic working medium in the cooling flow channel cools the stator through the latent heat of vaporization principle.
Further optimization: the rotor is rotatably arranged in the middle of the stator, and a spacing gap is arranged between the outer surface of the rotor and the outer surface of the stator.
Further optimization: one side of motor housing is provided with the magnetic bearing seat, and the opposite side fixedly connected with end cover of magnetic bearing seat, motor housing are close to the one end of magnetic bearing seat and have been seted up and connect the installing port, and the one end an organic whole that the magnetic bearing seat is close to motor housing is connected with the link, and link fixed mounting is in connecting the installing port.
Further optimization: the end face of the connecting end is provided with a first through hole near the middle of the connecting end, the mounting cavity is communicated with the inner cavity of the magnetic bearing seat through the first through hole, and one end of the rotor, which is near the magnetic bearing seat, penetrates through the first through hole and extends into the inner cavity of the magnetic bearing seat.
Further optimization: a first working medium outlet is formed in the end cover and communicated with the inner cavity of the magnetic bearing seat.
Further optimization: the organic Rankine cycle loop comprises a preheater, an outlet of the preheater is communicated with an evaporator, an outlet of the evaporator is communicated with an expander, an outlet of the expander is communicated with an evaporative condenser, an outlet of the evaporative condenser is communicated with a working medium pump, and heating pipelines in the preheater and the evaporator are mutually connected in series and are communicated with an external low-grade heat energy pipeline.
Further optimization: an air inlet pipeline is communicated with an outlet of the expansion machine, the other end of the air inlet pipeline is communicated with a first working medium inlet, the end parts of the first working medium outlet and the second working medium outlet are respectively communicated with one end of the same converging pipe, and the other end of the converging pipe is communicated with an inlet of the evaporative condenser.
Further optimization: the outlet of the working medium pump is respectively communicated with a reflux branch pipe and a cooling branch pipe, the other end of the reflux branch pipe is communicated with the inlet of the preheater, the other end of the cooling branch pipe is communicated with the inlet of the second working medium, and a throttle valve is connected in series on the cooling branch pipe.
The above technical scheme is adopted in the utility model, think about ingeniously, rational in infrastructure, can set up the cooling runner on the cooling runner body, and the assembly of the cooling runner body is in motor housing, and the cooling runner body and stator zonulae occludens, and then the organic medium in the cooling runner can cool off the stator through the latent heat principle of vaporization, and for the sensible heat, the density of latent heat is bigger, only need a small amount of organic working medium just can accomplish the cooling task, and then improve the cooling effect, and can further reduce the area of cooling runner, reduce the size of motor.
And the cooling medium adopts the organic working medium in the organic Rankine cycle loop, compared with water cooling, no additional water source is needed to be input, the freezing point of the organic working medium is low, the freezing is not easy, and the boiling point of the organic working medium is reduced after the organic working medium is reduced by the throttle valve, and the evaporation is started at about 60 ℃, so that the latent heat of vaporization of the organic working medium can be utilized to cool the motor, and the cooling effect is improved.
The stator, the rotor and the bearing with large heat dissipation capacity can be respectively cooled through the first cooling circulation loop and the second cooling circulation loop, so that the motor is comprehensively and efficiently cooled.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cooling flow channel in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a magnetic bearing seat in an embodiment of the present invention;
fig. 4 is an assembly diagram of the high-speed magnetic levitation motor according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of an organic rankine cycle circuit according to an embodiment of the present invention.
In the figure: 1-a motor housing; 111-mounting a cavity; 112-connecting the mounting port; 2-a stator; 3-a rotor; 4-cooling the flow channel body; 5-cooling the flow channel; 6-a first working medium inlet; 7-a first working medium outlet; 8-a second working medium inlet; 9-a second working medium outlet; 10-a magnetic bearing block; 101-a connection end; 102-a first via; 11-end cap; 12-a first magnetic bearing; 13-a second magnetic bearing; 14-a preheater; 15-an evaporator; 16-an expander; 17-an evaporative condenser; 18-working medium pump; 19-a return manifold; 20-cooling the branch pipe; 21-a throttle valve; 22-an air intake line; 23-confluence line.
Detailed Description
Example (b): referring to fig. 1-5, a high-speed magnetic suspension motor cooling system based on organic rankine cycle comprises a high-speed magnetic suspension motor and an organic rankine cycle loop, the high-speed magnetic suspension motor comprises a motor housing 1, an installation cavity 111 is formed in the motor housing 1, a stator 2 is installed in the installation cavity 111, a rotor 3 is rotatably installed in the middle of the stator 2, a first working medium inlet 6 communicated with the installation cavity 111 is formed in the motor housing 1, a cooling flow passage body 4 is arranged between the outer surface of the stator 2 and the inner surface of the motor housing 1, a cooling flow passage 5 is formed in the cooling flow passage body 4, a second working medium inlet 8 and a second working medium outlet 9 are formed in the outer surface of the motor housing 1, and the second working medium inlet 8 and the second working medium outlet 9 are respectively communicated with the cooling flow passage 5.
By the design, the organic working medium can be introduced into the installation cavity 111 through the first working medium inlet 6, the organic working medium is gas, and the organic working medium flows in the installation cavity 111 and is used for cooling each part in the installation cavity 111.
Organic working media can be introduced into the cooling flow channel 5 through the second working media inlet 8, at the moment, the organic working media flow through the cooling flow channel 5 to absorb heat and cool the stator 2 and the motor shell 1, at the moment, the organic working media after obtaining heat energy in the high-speed magnetic suspension motor are evaporated and converted into a steam state, and are discharged through the second working media outlet 9.
Therefore, organic working media can be introduced into the installation cavity 111 in the motor shell 1 through the first working medium inlet 6, organic working media can be introduced into the cooling flow channel 5 through the second working medium inlet 8, and the two organic working media can carry out all-dimensional cooling on the high-speed magnetic suspension motor, so that the cooling effect is improved.
The diameter of the outer surface of the cooling flow passage body 4 is matched with the diameter of the inner surface of the mounting cavity 111, and the cooling flow passage body 4 is fixedly mounted in the mounting cavity 111.
The cooling flow channel 5 is spiral and is arranged on the outer surface of the cooling flow channel body 4, and the outer surface of the cooling flow channel body 4 is hermetically connected with the inner surface of the mounting cavity 111 for packaging the cooling flow channel 5.
By the design, the cooling flow channel body 4 is simple in overall structure and convenient to manufacture, the cooling flow channel 5 is arranged on the cooling flow channel body 4, the cooling flow channel 5 is convenient to manufacture and produce, the processing difficulty can be greatly reduced, the assembly and the installation are convenient, and the using effect is improved.
A sealing ring (not shown in the figure) can be arranged between the cooling flow channel body 4 and the inner surface of the mounting cavity 111, the sealing ring can be arranged on the cooling flow channel body 4 near the two ends of the cooling flow channel body, and the sealing ring is used for improving the sealing connection effect between the cooling flow channel body 4 and the mounting cavity 111 and improving the use effect.
And a second working medium inlet 8 on the motor shell 1 is communicated with the liquid inlet end of the cooling flow channel 5, and a second working medium outlet 9 on the motor shell 1 is communicated with the liquid outlet end of the cooling flow channel 5.
And a second cooling circulation loop is formed among the second working medium inlet 8, the cooling flow channel 5 and the second working medium outlet 9.
By the design, the organic working medium can be introduced into the cooling channel 5 through the second working medium inlet 8, and at the moment, the organic working medium can flow along the cooling channel 5 and is discharged through the second working medium outlet 9.
The organic working medium in the cooling flow channel 5 absorbs heat to cool the stator 2 and the motor shell 1, and the organic working medium which obtains heat energy is evaporated and converted into a steam state and is discharged through a second working medium outlet 9.
The middle part of the cooling flow passage body 4 is provided with a mounting cavity, and the stator 2 is fixedly mounted in the mounting cavity in the middle part of the cooling flow passage body 4.
The outer surface of the stator 2 is tightly connected with the inner surface of the middle mounting cavity of the cooling flow passage body 4, and the organic working medium in the cooling flow passage 5 can cool the stator 2 by the latent heat of vaporization principle.
The rotor 3 is rotatably installed in the middle of the stator 2, and a gap is formed between the outer surface of the rotor 3 and the outer surface of the stator 2.
The first working medium inlet 6 is communicated with the installation cavity 111 in the motor shell 1, and organic working medium can be introduced into the installation cavity 111 through the first working medium inlet 6.
At this time, when the organic working medium flows in the motor housing 1, the organic working medium can flow through the outer surface of the rotor 3 and the gap between the rotor 3 and the stator 2.
When the organic working medium flows through the gap, heat can be taken away, so that the rotor 3 and the stator 2 in the motor shell 1 are cooled, and the cooling effect is improved.
One side of the motor housing 1 is provided with a magnetic bearing seat 10, and one side of the magnetic bearing seat 10 far away from the motor housing 1 is fixedly connected with an end cover 11.
One end of the motor shell 1 close to the magnetic bearing seat 10 is provided with a connecting and mounting opening 112, and the inner surface diameter of the connecting and mounting opening 112 is equal to the inner surface diameter of the mounting cavity 111.
The cooling flow path body 4 is mounted in the mounting cavity 111 through the connection mounting port 112.
One end of the magnetic bearing seat 10 close to the motor housing 1 is integrally connected with a connecting end 101.
The connecting end 101 is fixedly installed in the connecting installation opening 112, so that the magnetic bearing base 10 is fixedly installed on the motor housing 1, and the assembly and installation are convenient.
A first through hole 102 is formed in the end surface of the connecting end 101 near the middle thereof, and one end of the rotor 3 near the magnetic bearing seat 10 penetrates through the first through hole 102 and extends into the inner cavity of the magnetic bearing seat 10.
The diameter of the inner surface of the first through hole 102 is larger than the diameter of the outer surface of the rotor 3, and the installation cavity 111 in the motor housing 1 is communicated with the inner cavity of the magnetic bearing holder 10 through the first through hole 102.
The end cover 11 is used for sealing one end face of the magnetic bearing seat 10 far away from the motor shell 1, a first working medium outlet 7 is formed in the end cover 11, and the first working medium outlet 7 is communicated with an inner cavity of the magnetic bearing seat 10.
By the design, the organic working medium can be introduced into the mounting cavity 111 through the first working medium inlet 6, and when the organic working medium flows in the motor shell 1, the organic working medium can flow through the outer surface of the rotor 3 and the interval gap between the rotor 3 and the stator 2 and enter the inner cavity of the magnetic bearing seat 10 through the first through hole 102.
Organic working medium in the inner cavity of the magnetic bearing seat 10 can be discharged through the first working medium outlet 7, so that a first cooling circulation loop is formed, each rotor 3 and each stator 2 in the motor shell 1 can be cooled by the first cooling circulation loop, and the cooling effect is improved.
The first magnetic bearing 12 is sleeved on the outer surface of the rotor 3 in the mounting cavity 111, and the first magnetic bearing 12 is fixedly mounted in the mounting cavity 111.
A second magnetic bearing 13 is sleeved on the outer surface of the rotor 3 in the inner cavity of the magnetic bearing seat 10, and the second magnetic bearing 13 is fixedly installed in the magnetic bearing seat 10.
The inner ring diameters of the first magnetic bearing 12 and the second magnetic bearing 13 are respectively larger than the outer surface diameter of the rotor 3.
The inner rings of the first and second magnetic bearings 12, 13 are provided with a gap in front of the outer surface of the rotor 3.
When flowing, the organic working medium in the mounting cavity 111 can flow through the gap between the first magnetic bearing 12 and the rotor 3, so that the heat on the first magnetic bearing 12 and the rotor 3 can be taken away through the organic working medium, and the cooling effect is improved.
When flowing, the organic working medium in the inner cavity of the magnetic bearing seat 10 can flow through the gap between the second magnetic bearing 13 and the rotor 3, so that the heat on the second magnetic bearing 13 and the rotor 3 can be taken away through the organic working medium, and the cooling effect is improved.
Therefore, the organic working medium flowing in the installation cavity 111 and the magnetic bearing seat 10 can cool the stator 2, the rotor 3, the first magnetic bearing 12 and the second magnetic bearing 13, so that all parts in the high-speed magnetic suspension motor can be cooled, comprehensive cooling is realized, and the cooling effect is improved.
The orc circuit includes a preheater 14, an evaporator 15, an expander 16, an evaporative condenser 17, and a working fluid pump 18.
The outlet of the preheater 14 is communicated with the inlet of the evaporator 15, the outlet of the evaporator 15 is communicated with the inlet of the expander 16, the outlet of the expander 16 is communicated with the inlet of the evaporative condenser 17, and the outlet of the evaporative condenser 17 is communicated with the inlet of the working medium pump 18.
The heating pipelines in the preheater 14 and the evaporator 15 are mutually connected in series and are both communicated with an external low-grade heat energy pipeline.
Industrial waste heat in the peripheral low-grade heat energy pipeline is conveyed to heating pipes of the preheater 14 and the evaporator 15, at the moment, organic working media in the preheater 14 absorb heat of the industrial waste heat to realize preheating, then the preheated organic working media are conveyed to the evaporator 15, and the evaporator 15 is used for continuously heating the organic working media to enable the organic working media to be vaporized into a gas state.
Then the gaseous organic working medium enters the expansion machine 16 and performs expansion work in the expansion machine 16, and at the moment, the expansion machine 16 drives the high-speed magnetic suspension motor to work to generate power.
The exhaust steam (the exhaust steam is low-temperature steam which is not polluted and is carried in high-temperature condensed water discharged by indirect steam equipment) is output from an outlet of the expansion machine 16 and enters the evaporative condenser 17, and at the moment, the evaporative condenser 17 condenses the organic working medium to change the organic working medium into a liquid state.
The working medium pump 18 is then operated for the pressurized delivery of the liquid organic working medium.
An air inlet pipeline 22 is communicated with an outlet of the expansion machine 16, and the other end of the air inlet pipeline 22 is communicated with the first working medium inlet 6.
A part of the exhaust steam output from the outlet of the expansion machine 16 is conveyed to the first working medium inlet 6 through the air inlet pipeline 22, at the moment, the gaseous organic working medium can enter the inner cavity of the installation cavity 111 and the magnetic bearing seat 10 through the first working medium inlet 6, and further, the organic working medium in the gaseous state is used for cooling each part in the high-speed magnetic suspension motor, so that comprehensive cooling is realized, and the cooling effect is improved.
The outlet of the working medium pump 18 is respectively communicated with a return branch pipe 19 and a cooling branch pipe 20, and the other end of the return branch pipe 19 is communicated with the inlet of the preheater 14.
The other end of the cooling branch pipe 20 is communicated with the second working medium inlet 8.
The liquid organic working medium condensed by the evaporative condenser 17 enters a working medium pump 18, and the working medium pump 18 is used for pressurizing the liquid organic working medium and respectively conveying the liquid organic working medium into a reflux branch pipe 19 and a cooling branch pipe 20.
The liquid organic working medium in the reflux branch pipe 19 is conveyed into the preheater 14 for heating.
The liquid organic working medium in the cooling branch pipe 20 is conveyed into the second working medium inlet 8, and at the moment, the liquid organic working medium in the second working medium inlet 8 enters the cooling runner 5 to cool the stator 2 and the motor shell 1.
The cooling branch pipe 20 is connected in series with a throttle valve 21, and the throttle valve 21 is used for adjusting the pressure of the liquid organic working medium in the cooling branch pipe 20.
By the design, the liquid organic working medium in the cooling branch pipe 20 is depressurized to be close to saturation pressure after flowing through the throttle valve 21, and the boiling point of the liquid organic working medium depressurized by the throttle valve 21 is reduced and evaporation is started at about 60 ℃.
Then the liquid organic working medium in the cooling branch pipe 20 enters the cooling flow channel 5 through the second working medium inlet 8, and at the moment, the latent heat of vaporization of the liquid organic working medium is utilized to cool the high-speed magnetic suspension motor.
Compared with sensible heat, the density of latent heat is larger, and the cooling task can be completed only by a small amount of liquid organic working media, so that the cross section area of the cooling flow channel 5 can be further reduced, the size of the high-speed magnetic suspension motor is further reduced, and the using effect is improved.
The end parts of the first working medium outlet 7 and the second working medium outlet 9 are respectively communicated with one end of the same converging pipe 23, and the other end of the converging pipe 23 is communicated with the inlet of the evaporative condenser 17.
Gaseous organic working media output by the first working medium outlet 7 and the second working medium outlet 9 enter the converging pipe 23, and at the moment, the gaseous organic working media can enter the evaporative condenser 17 for condensation through the diversion of the converging pipe 23.
When the device is used, the industrial waste heat in the externally-arranged low-grade heat energy pipeline is firstly conveyed into the heating pipes of the preheater 14 and the evaporator 15, at the moment, the organic working medium in the preheater 14 absorbs the heat of the industrial waste heat to realize preheating, then the preheated organic working medium is conveyed into the evaporator 15, and the evaporator 15 is used for continuously heating the organic working medium to enable the organic working medium to be vaporized into a gaseous state.
Then the gaseous organic working medium enters the expansion machine 16 and performs expansion work in the expansion machine 16, and at the moment, the expansion machine 16 drives the high-speed magnetic suspension motor to work to generate power.
The exhausted steam from the outlet of the expander 16 enters the air inlet pipeline 22 partly and enters the evaporative condenser 17 partly.
Gaseous organic working medium in the air inlet pipeline 22 enters the installation cavity 111 through the first working medium inlet 6, and at the moment, the gaseous organic working medium flows through the outer surfaces of the first magnetic bearing 12 and the second magnetic bearing 13, the outer surface of the rotor 3, the gap between the rotor 3 and the stator 2 and the gap between the rotor 3 and the first magnetic bearing 12 and the second magnetic bearing 13, so that the gaseous organic working medium is used for cooling all parts in the high-speed magnetic suspension motor, comprehensive cooling is realized, and the cooling effect is improved.
The evaporative condenser 17 condenses the organic working medium to change the organic working medium into a liquid state, and then the working medium pump 18 works to pressurize and convey the liquid organic working medium into the reflux branch pipe 19 and the cooling branch pipe 20.
The liquid organic working medium in the reflux branch pipe 19 is conveyed into the preheater 14 for heating.
The liquid organic working medium in the cooling branch pipe 20 flows through the throttle valve 21, is reduced in pressure to be close to saturation pressure, and is conveyed into the cooling flow channel 5 through the second working medium inlet 8, and at the moment, the latent heat of vaporization of the liquid organic working medium is utilized to cool the high-speed magnetic suspension motor.
And then the organic working medium cooled by the high-speed magnetic suspension motor is output through the first working medium outlet 7 and the second working medium outlet 9 and enters the converging pipe 23, and at the moment, the gaseous organic working medium can enter the evaporative condenser 17 for condensation through the flow guide of the converging pipe 23.
For those skilled in the art, based on the teachings of the present invention, changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122584922.XU CN215221953U (en) | 2021-10-27 | 2021-10-27 | High-speed magnetic suspension motor cooling system based on organic Rankine cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122584922.XU CN215221953U (en) | 2021-10-27 | 2021-10-27 | High-speed magnetic suspension motor cooling system based on organic Rankine cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215221953U true CN215221953U (en) | 2021-12-17 |
Family
ID=79427155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122584922.XU Active CN215221953U (en) | 2021-10-27 | 2021-10-27 | High-speed magnetic suspension motor cooling system based on organic Rankine cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215221953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542198A (en) * | 2022-03-11 | 2022-05-27 | 天津大学 | Turbo-expansion generator |
| CN114961886A (en) * | 2022-04-26 | 2022-08-30 | 天津大学 | Turbo expander and thermal cycle system comprising same |
| CN117118138A (en) * | 2023-10-24 | 2023-11-24 | 北京中科九微科技有限公司 | Motor housing for magnetic suspension molecular pump and manufacturing method thereof |
-
2021
- 2021-10-27 CN CN202122584922.XU patent/CN215221953U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542198A (en) * | 2022-03-11 | 2022-05-27 | 天津大学 | Turbo-expansion generator |
| CN114961886A (en) * | 2022-04-26 | 2022-08-30 | 天津大学 | Turbo expander and thermal cycle system comprising same |
| CN117118138A (en) * | 2023-10-24 | 2023-11-24 | 北京中科九微科技有限公司 | Motor housing for magnetic suspension molecular pump and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215221953U (en) | High-speed magnetic suspension motor cooling system based on organic Rankine cycle | |
| CN110131116B (en) | ORC magnetic suspension power generation system utilizing medium-low temperature geothermal residual pressure in gradient mode | |
| CN106655574B (en) | Rotor self-circulation cooling system and method of high-speed motor direct-drive turbine machine | |
| WO2020239069A1 (en) | Orc magnetic levitation power generation system utilizing medium and low temperature geothermal working media in gradient mode | |
| CN107476833A (en) | The self cooled magnetic suspension turbine expansion generator of zero leakage and System and method for | |
| CN101761368A (en) | Low-grade heat flow prime motor, power generating system and method thereof | |
| CN218771636U (en) | Cooling system of water-cooled motor of magnetic suspension vacuum pump | |
| CN201656595U (en) | Stator cooling system of high-speed permanent magnet motor | |
| CN110578560B (en) | ORC circulating system based on static pressure air bearing | |
| CN110701022B (en) | A compressed air energy storage system and control method for efficiently utilizing low-grade thermal energy | |
| CN211116145U (en) | ORC circulation system based on static pressure air bearing | |
| CN101800500B (en) | Small temperature difference thermal electric generator | |
| CN112555171A (en) | Cooling-free super-two-turbine compressor for solar power generation | |
| CN212615372U (en) | Oil-free and water-free vortex air compressor | |
| CN111794819A (en) | Low-temperature working medium supercritical power generation system or power system and equipment | |
| CN102562827A (en) | High-speed bearing cooling system of turbine/compressor for aviation and method and application thereof | |
| CN108915783A (en) | A kind of lubricating system of positive-displacement expansion engine | |
| CN201246218Y (en) | Sub-low temperature heat source gasification circulation thermodynamic system | |
| CN201434625Y (en) | Heat pipe oil cooler for vehicle | |
| CN206377886U (en) | A kind of solar energy vortex tube compression heat pump system | |
| CN211573643U (en) | High-temperature magnetic suspension bearing cooling system for gas turbine | |
| CN101555807A (en) | Gasification circulation thermal power system of mild-hypothermia thermal source | |
| CN209184415U (en) | Flooded evaporative cooling system for motor cooling | |
| CN211777626U (en) | Liquid air energy storage system | |
| CN213279421U (en) | Motor utilizing high-pressure air for refrigeration and cooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high-speed magnetic levitation motor cooling system based on organic Rankine cycle Granted publication date: 20211217 Pledgee: Agricultural Bank of China Weifang High tech Industrial Development Zone Branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY Co.,Ltd. Registration number: Y2025980001125 |