CN106801632B - A kind of afterheat generating system with cone rotor generator - Google Patents
A kind of afterheat generating system with cone rotor generator Download PDFInfo
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- CN106801632B CN106801632B CN201510827774.6A CN201510827774A CN106801632B CN 106801632 B CN106801632 B CN 106801632B CN 201510827774 A CN201510827774 A CN 201510827774A CN 106801632 B CN106801632 B CN 106801632B
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- expanding machine
- radial turbine
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Abstract
The invention discloses a kind of afterheat generating systems with cone rotor generator, are made of acting working medium, heat-exchanger rig and electrical system three parts, wherein acting working medium is organic media；The cone rotor generator of the present invention, which can be divided into, two kinds of structures of bearing or bearing-free, and when to there is bearing arrangement, radial turbine expanding machine generates axial tension FRElectromagnetic axial power F is generated with the cone rotor of coaxial connecting generatorLDirection is on the contrary, and FLIt can also be with FRVariation is adjusted, and can be completely counterbalanced by；When for shaftless bearing structure, power winding and suspending windings double winding are embedded in generator unit stator together, generator amature and coaxial radial turbine expanding machine are suspended；Achieve the effect that bearing-free, while also taking into account the effect of power winding.Therefore this electricity generation system has simple in structure, and maintenance period is long, efficient feature.For shaftless bearing structure when, the purity of the acting medium of electricity generation system is protected, and increases the service life of system.
Description
Technical field
The invention belongs to the UTILIZATION OF VESIDUAL HEAT INs and recycling field of a kind of novel afterheat generating system, and in particular to be suitable for swollen
Swollen machine generates a kind of afterheat generating system with cone rotor generator that axial tension is big, has bearing or shaftless bearing structure.
Background technology
Energy shortage is global problem, increasingly causes the highest attention of people, and restricts various energy consumption industries at present
The main problem of sustainable development.Waste heat has the characteristics that temperature is high, pressure is big, energy is high in various industry, if being directly discharged into
Air can cause a large amount of heat to be wasted, while the pressure that can also give current serious Global Greenhouse Effect to bring bigger
Power.
Invention content
The purpose of the present invention is to solve waste heat waste, convert heat energy into mechanical energy in the method for being converted into electric energy, carry
A kind of afterheat generating system with cone rotor generator is supplied.
A kind of afterheat generating system with cone rotor generator of the present invention, it is by acting working medium, heat-exchanger rig and electrical
System three parts form, wherein acting working medium is organic media, that is, select R245fa, R123, R134a, R600a organic media any
Kind；Heat-exchanger rig includes condenser, evaporator and working medium pump；Electrical system include radial turbine expanding machine, PWM converter plants and
Cone rotor generator.Organic media after working medium pump pressurizes is heated through evaporator, and the organic media of high temperature and pressure is through pipeline
Into radial turbine expanding machine inner cavity, driving radial turbine expanding machine rotation realizes that thermal energy is converted with mechanical energy；Radial turbine is swollen
Swollen machine is directly anchored to the cone rotor generator axle stretch end, and the radial turbine expanding machine of rotation drives generator amature to carry out
Mechanical energy is converted into electric energy；The external PWM converter plants of cone rotor generator, externally export electric energy, and lack of gas pass through after finally doing work
Pipeline is cooled down in the condenser, and evaporator is entered after pressurizeing through working medium pump and carries out thermal energy exchange, to complete one
Secondary cycle.
The cone rotor generator is to have bearing or shaftless bearing structure one of which.
The cone rotor generator is when having bearing arrangement, and the organic media of high temperature and pressure revolves turbo-expander
After turning acting, the lack of gas discharge turbo-expander inner cavity of low-temp low-pressure is formd, to the original of the front and back pressure difference of organic media acting
Cause makes radial turbine expanding machine generate an axial tension FR, due to the cone rotor in radial turbine expanding machine and generator
Coaxially, according to motor operation principle, electromagnetic axial power F is generated on the cone rotor in generatorL, and axial tension FRAnd electromagnetism
Axial force FLDirection is on the contrary, and the electromagnetic axial power F of cone rotor in generatorLIt can be as radial turbine expanding machine be with having
Axial tension F is generated when the pressure change of machine mediumRIt can be adjusted, then can offset completely.
The cone rotor be shaftless bearing structure when, in cone rotor generator unit stator, together be embedded in power winding and
Suspending windings double winding, when system works, double winding is passed through the three-phase alternating current of same frequency, and cone rotor generator is turned
The sub and described radial turbine expanding machine suspends；Achieve the effect that shaftless bearing structure, while also taking into account the effect of power winding.
The beneficial effects of the present invention are, a kind of afterheat generating system with cone rotor generator provided by the invention,
When choosing has bearing electric generator structure pattern, electromagnetic axial power F that cone rotor when generator operation generatesLWith radial turbine
Axial tension F is generated when the pressure change of expanding machine acting working mediumRIt can be adjusted, and direction is on the contrary, can simultaneously be completely counterbalanced by, then
The device of axial force is overcome without special bearing；When selecting cone rotor generator without bearing, in stator winding embedded power around
Cone rotor generator and radial turbine expanding machine are suspended, realize bearing-free knot by group and suspending windings double winding
Structure effect, cancels the lubrication Bearning mechanism of generator, and the movable sealing structure between generator and radial turbine expanding machine is converted into
Static seal, reduces seal request, strengthens sealing effect, while reducing the mechanical friction loss of generator, improves
The photoelectric transformation efficiency and reliability of generator, while having taken into account the effect of torque winding；Make the manufacturing cost that electricity generation system has
Low, simple in structure, maintenance period is long, efficient feature.Also it is protected to the purity of the organic media of system, increases system
Service life.
Description of the drawings
Fig. 1 show a kind of structure chart of the afterheat generating system with cone rotor generator of the present invention；
Fig. 2 show in the present invention radial turbo-expander and the direct-connected stress diagram of cone rotor generator；
Fig. 3 show in the present invention radial turbo-expander and cone rotor generator X, Y, Z stress diagram；
In figure：1, condenser, 2, organic media, 3, working medium pump, 4, evaporator, 5, cone rotor generator, 6, PWM unsteady flows
Device, 7, radial turbine expanding machine, 8, generator unit stator, 9, the cone rotor in generator.
Specific implementation mode
The specific embodiment of the invention is described in detail below in conjunction with specific attached drawing.It should be noted that in following embodiments
The combination of the technical characteristic or technical characteristic of description is not construed as isolated, they can be combined with each other to reach
To superior technique effect.
As shown in Figure 1, a kind of afterheat generating system with cone rotor generator of the present invention, it is by acting working medium, heat exchange
Device and electrical system three parts composition, wherein acting working medium is organic media（2）, select R245fa, R123, R134a,
R600a is any；Heat-exchanger rig is by condenser（1）, evaporator（4）And working medium pump (3) composition；Electrical system is swollen by radial turbine
Swollen machine（7）, PWM converter plants（6）And cone rotor generator（5）Composition.
In system, condenser（1）Outlet access working medium pump（3）Entrance, the organic media of low-temp low-pressure（2）In cooler
（1）Through working medium pump after cooling（3）Enter through evaporator after pressurization（4）Heating, the organic media of high temperature and pressure（2）Again through pipeline height
The inflow radial turbine expanding machine of speed（7）Inner cavity drives radial turbine expanding machine（7）Rotation acting, realizes thermal energy and mechanical energy
Conversion；Due to radial turbine expanding machine（7）With cone rotor generator（5）Coaxial connection, drives the cone rotor in generator
（9）Rotation carries out mechanical energy and is converted into electric energy；Cone rotor generator（5）External PWM converter plants（6）；Externally output electric energy,
Finally do work after lack of gas through pipeline in the condenser（1）In cooled down；Again through working medium pump（3）Enter evaporator after pressurization
（4）Thermal energy exchange is carried out, to complete one cycle, recycling acting.
As shown in Fig. 2, the cone rotor generator（5）To have bearing arrangement or shaftless bearing structure：
The cone rotor generator（5）When to there is bearing arrangement, as shown in Fig. 2, the organic media of high temperature and pressure（2）It drives
Radius vector is to turbo-expander（7）Rotation carries out the conversion of thermal energy and mechanical energy, the organic media of low-temp low-pressure is formd after acting
（2）Radial turbine expanding machine is discharged（7）Inner cavity, to organic media（2）Before and after acting the reason of pressure difference, radial turbine is made to expand
Machine（7）Generate an axial tension FR, such as formula（One）：
FR=FInto-FGo out（One）
In formula one：FInto=k1PInto×S, FGo out=k2PGo out×S,
In formula：PIntoThe inlet pressure of-radial turbine expanding machine（N/m2）
PGo outThe inlet pressure of-radial turbine expanding machine（N/m2）
S-effective the work area of radial turbine expanding machine（m2）
K1, k2-empirical coefficient
Due to radial turbine expanding machine（7）With the cone rotor in generator（9）Coaxially, according to motor operation principle, hair
Cone rotor in motor（9）Upper generation electromagnetic axial power FL, such as formula（Two）：
FL=1.23×106DavtanαƖefi（Bδβ）2（Two）
In formula：Dav-average diameter（mm）
The cone angle of α-rotor（º）
Ɩefi- effectively iron core is long（mm）
Bδ- air gap flux density（T）
β-the ratio between air gap flux density root mean square and maximum value
By formula（One）、（Two）It is found that axial tension FRWith electromagnetic axial power FLDirection is on the contrary, and the taper in generator
Rotor（9）Electromagnetic axial power FLIt can be with radial turbine expanding machine（7）With organic media（2）Pressure change when generate axis
To pulling force FRIt can be adjusted, and can be completely counterbalanced by.
The cone rotor generator（5）For shaftless bearing structure when, in the cone rotor generator unit stator（8）In, one
And power winding and suspending windings double winding of the embedded number of pole-pairs difference for two times, when system works, double winding is passed through together
The three-phase alternating current of frequency, it is magnetic field-enhanced in the magnetic field of generation in certain air gap prescription to identical, and symmetrical air gap prescription therewith
To on the contrary, field weakening, the cone rotor in generator（9）By by the Maxwell force along magnetic field-enhanced direction, that is, suspend
Power, by cone rotor generator（5）With radial turbine expanding machine（7）Suspension is got up, and achievees the effect that shaftless bearing structure.Suffered
X, Y, shown in Maxwell force Fig. 3 of Z-direction, formula three：
（Three）
In formula：- air gap flux density amplitude
The cone angle of α-rotor（º）
The starting phase angle of-power winding and suspending windings（º）
Wherein：;
In formula：For exciting current amplitude.
And radial suspension force is directly proportional to magnetic field intensity, magnetic field intensity and the amplitude with electric currentIt is directly proportional therefore logical
Cross the amplitude of electric current in control double windingThe size of 9 force in radial of controllable cone rotor；It also takes into account simultaneously
Power winding acts on.
A kind of afterheat generating system with cone rotor generator provided by the invention, it is elected to have bearing electric generator structure type
When formula, cone rotor generator when generator operation（5）The electromagnetic axial power F that rotor generatesLWith radial turbine expanding machine（7）
With organic media（2）Pressure change when generate axial tension FRIt can be adjusted, and equal in magnitude, direction is on the contrary, to complete
It can offset entirely, then be not necessarily to the device that special bearing overcomes axial force；When selecting cone rotor generator without bearing, in stator winding
Embedded power winding and suspending windings double winding, by cone rotor generator（5）With radial turbine expanding machine（7）It suspends
Come, realizes shaftless bearing structure purpose, cancel the lubrication Bearning mechanism of generator, cone rotor generator（5）With radial turbine
Expanding machine（7）Between movable sealing structure be converted to static seal, reduce seal request, strengthen sealing effect, subtract simultaneously
Cone rotor generator is lacked（5）Mechanical friction loss, improve cone rotor generator（5）Photoelectric transformation efficiency and reliable
Property, while having taken into account the effect of power winding；Keep the manufacturing cost that electricity generation system has low, simple in structure, maintenance period is long, effect
The high feature of rate.Also to the organic media of system（2）Purity be protected, increase the service life of system.
Although having been presented for some embodiments of the present invention herein, it will be appreciated by those of skill in the art that
Without departing from the spirit of the invention, the embodiments herein can be changed.Above-described embodiment is only exemplary, no
It should be using the embodiments herein as the restriction of interest field of the present invention.
Claims (1)
1. a kind of afterheat generating system with cone rotor generator, generator is cone rotor generator（5）, it is by doing work
Working medium, heat-exchanger rig and electrical system three parts composition；Wherein acting working medium is organic media（2）Select R245fa, R123,
R134a, R600a are any；Heat-exchanger rig includes condenser（1）, evaporator（4）And working medium pump（3）；Electrical system includes radial
Turbo-expander（7）, PWM converter plants（6）And cone rotor generator（5）；Through working medium pump（3）Organic media after pressurization
（2）Through evaporator（4）Heating, the organic media of high temperature and pressure（2）Enter radial turbine expanding machine through pipeline（7）Inner cavity, driving
Radial turbine expanding machine（7）Rotation realizes that thermal energy is converted with mechanical energy；Radial turbine expanding machine（7）It is directly anchored to the cone
Shape rotor generator（5）Axle stretch end, the radial turbine expanding machine of rotation（7）It drives generator amature to carry out mechanical energy and is converted into electricity
Energy；Cone rotor generator（5）External PWM converter plants, externally export electric energy, finally do work after lack of gas through pipeline described cold
Condenser（1）In cooled down, then through working medium pump（3）Enter evaporator after pressurization（4）Thermal energy exchange is carried out, to complete once to follow
Ring；It is characterized in that：
The cone rotor generator（5）To have bearing or shaftless bearing structure one of which；
The cone rotor generator（5）When to there is bearing arrangement, radial turbine expanding machine（7）Generate an axial tension FR, hair
Cone rotor in motor（9）Upper generation electromagnetic axial power FL, and axial tension FRWith electromagnetic axial power FLDirection is on the contrary, and send out
Cone rotor in motor（9）Electromagnetic axial power FLIt can be with radial turbine expanding machine（7）With organic media（2）Pressure
Axial tension F is generated when variationRIt can be adjusted, and can be completely counterbalanced by；
The cone rotor generator（5）For shaftless bearing structure when, in the cone rotor generator（5）Generator unit stator
（8）In, together be embedded in number of pole-pairs difference for two times power winding and suspending windings double winding, system work when, two sets around
Group is passed through the three-phase alternating current of same frequency, by cone rotor generator（5）With radial turbine expanding machine（7）Suspension is got up, and is reached
The effect of shaftless bearing structure, while also having taken into account the effect of power winding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510827774.6A CN106801632B (en) | 2015-11-25 | 2015-11-25 | A kind of afterheat generating system with cone rotor generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510827774.6A CN106801632B (en) | 2015-11-25 | 2015-11-25 | A kind of afterheat generating system with cone rotor generator |
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| Publication Number | Publication Date |
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| CN106801632A CN106801632A (en) | 2017-06-06 |
| CN106801632B true CN106801632B (en) | 2018-07-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114696536A (en) * | 2022-04-12 | 2022-07-01 | 湖南工程学院 | Turbine direct-drive conical rotor permanent magnet synchronous generator set |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094689A (en) * | 2011-02-12 | 2011-06-15 | 罗良宜 | Low-temperature heat energy power generation device |
| CN104265390A (en) * | 2014-10-22 | 2015-01-07 | 烟台荏原空调设备有限公司 | Double-working-medium circulation power generation system with waste heat recycling function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6064548B2 (en) * | 2012-11-28 | 2017-01-25 | 株式会社Ihi | Waste heat power generator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094689A (en) * | 2011-02-12 | 2011-06-15 | 罗良宜 | Low-temperature heat energy power generation device |
| CN104265390A (en) * | 2014-10-22 | 2015-01-07 | 烟台荏原空调设备有限公司 | Double-working-medium circulation power generation system with waste heat recycling function |
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