CN107620616A - Integral type electricity generation system and electricity-generating method - Google Patents
Integral type electricity generation system and electricity-generating method Download PDFInfo
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- CN107620616A CN107620616A CN201610562910.8A CN201610562910A CN107620616A CN 107620616 A CN107620616 A CN 107620616A CN 201610562910 A CN201610562910 A CN 201610562910A CN 107620616 A CN107620616 A CN 107620616A
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Abstract
The invention provides integral type electricity generation system and electricity-generating method, the integral type electricity generation system includes：Expanding machine and magneto；The rotor of at least one radial-inward-flow turbine that the expanding machine includes and the magneto is fixed in same root rotary shaft, and the radial-inward-flow turbine drives the rotary shaft and the rotor to rotate under the driving of the working medium of outside input；The housing of the expanding machine is fixedly connected with the housing of the magneto, and the rotary shaft is fixed on the housing of the expanding machine and the enclosure interior of the magneto by least two journal bearings；The stator of the magneto, for forming electric energy according to the rotation of the rotor and exporting；Cooling duct is provided with the shell wall of the housing of the magneto, the cooling duct is used to transmit cooling medium, to be cooled down to the magneto.This programme in generator without setting cooling system.
Description
Technical field
The present invention relates to technical field of power generation, more particularly to integral type electricity generation system and electricity-generating method.
Background technology
As environmental problem is of increasing concern, the utilization rate of the energy how is improved, reduces environmental pollution and has become research
Focus.Often produce some used heat in the industrial production, by organic Rankine bottoming cycle (Organic Rankine Cycle,
ORC these used heat) can be reclaimed to be generated electricity, realize the recycling of the energy, improve the utilization rate of the energy.Organic
In Rankine cycle, high-pressure working medium expansion driven turbine in expanding machine rotates, and then makes turbine drive generator to rotate and carry out
Generate electricity.In order to prevent from being harmful to, working medium that is inflammable and explosive or influenceing environment from the leakage of the shaft end of expanding machine or be mixed into air to ring
Border or user damage, at present typically using expanding machine and generator unitary design.
At present, in the expanding machine and generator of unitary design, generator typically uses excitation generator, due to excitation
Generator can produce substantial amounts of heat in the course of the work, in order to ensure excitation generator can normal work, it is necessary in excitation
The inside of generator sets complicated cooling system, causes electric generator structure complex, functional reliability is poor.
The content of the invention
The embodiments of the invention provide integral type electricity generation system and electricity-generating method, without setting cooling system in generator.
The embodiments of the invention provide integral type electricity generation system, including：Expanding machine and magneto；
The rotor of at least one radial-inward-flow turbine that the expanding machine includes and the magneto is fixed on same root rotary shaft
On, the radial-inward-flow turbine drives the rotary shaft and the rotor to rotate under the driving of the working medium of outside input；
The housing of the expanding machine is fixedly connected with the housing of the magneto, and the rotary shaft passes through at least two footpaths
The housing of the expanding machine and the enclosure interior of the magneto are fixed on to bearing；
The stator of the magneto, for forming electric energy according to the rotation of the rotor and exporting；
Cooling duct is provided with the shell wall of the housing of the magneto, the cooling duct is used to transmit cooling medium,
To be cooled down to the magneto.
Wherein,
The housing of the expanding machine and the housing of the magneto are fixed on by two journal bearings when the rotary shaft
When internal,
The first journal bearing in described two journal bearings is fixed on the first shaft end of the rotary shaft or first shaft end
Between the rotor；
The second journal bearing in described two journal bearings is fixed on the second shaft end of the rotary shaft or second shaft end
Between the rotor.
In a preferred embodiment of the invention,
When first journal bearing is fixed on the first shaft end of the rotary shaft, and second journal bearing is fixed on institute
When stating the second shaft end of rotary shaft,
The radial-inward-flow turbine and the rotor are arranged between first journal bearing and second journal bearing, and institute
The working medium output end for stating expanding machine is adjacent with the magneto.
In another preferred embodiment of the present invention,
When first journal bearing is arranged between first shaft end and the rotor, and second journal bearing is consolidated
When the second shaft end of the rotary shaft,
The radial-inward-flow turbine is fixed on the first shaft end of the rotary shaft, the rotor be arranged at first journal bearing with
Between second journal bearing, and the working medium input of the expanding machine is adjacent with the magneto.
In the present invention has a preferred embodiment,
When first journal bearing is arranged between first shaft end and the rotor, and second journal bearing is set
When being placed between second shaft end and the rotor,
The rotor is fixed on the middle part of the rotary shaft；
The expanding machine includes two radial-inward-flow turbines, wherein, the first radial-inward-flow turbine in described two radial-inward-flow turbines is fixed on
First shaft end of the rotary shaft, the second radial-inward-flow turbine in described two radial-inward-flow turbines are fixed on the second of the rotary shaft
Shaft end, and the working medium input of the expanding machine is adjacent with the magneto.
In a preferred embodiment of the invention,
The cooling duct is arranged on the shell wall of the housing of the magneto in spiral form.
In another preferred embodiment of the present invention,
The cooling duct is arranged at the shell wall of the housing of the magneto in the form of at least two circular passages are parallel
On.
In a preferred embodiment of the invention, further comprise：Condenser；
The condenser is connected with the expanding machine and the cooling duct respectively；
The condenser, the working medium for being exported to the expanding machine condense, and form liquid refrigerant；
The cooling duct, the liquid refrigerant formed for transmitting the condenser, to pass through the liquid refrigerant pair
The permanent magnet direct-drive generator is cooled down.
In a preferred embodiment of the invention,
The integral type electricity generation system further comprises：Cod；
The inner ring of the cod is fixedly connected with the rotary shaft, the outer ring of the cod and the expanding machine
The housing of housing or the magneto is fixedly connected, for the axial location of the rotary shaft to be fixed.
In a preferred embodiment of the invention,
The integral type electricity generation system further comprises：Sealing ring；
The sealing ring is connected with the rotary shaft, positioned at housing and the housing of the magneto of the expanding machine
Junction, sealed for the working medium in the housing to the expanding machine.
Wherein,
The sealing ring includes：Labyrinth seal, comb sealing ring, brush seal circle, gas sealing mechanism, condiment sealing
Any one in device and mechanically-sealing apparatus.
In a preferred embodiment of the invention,
The journal bearing is electromagnetic bearing.
In another preferred embodiment of the present invention,
The integral type electricity generation system further comprises：At least two parking bearings；
The parking bearing is connected with the rotary shaft, and adjacent with the journal bearing；
The parking bearing, for being carried out when the electromagnetic bearing does not have normal work to the position radially of the axis of rotation
Limit.
The embodiment of the present invention additionally provides the method to be generated electricity using any one above-mentioned integral type electricity generation system, including with
Lower step：
The radial-inward-flow turbine is driven by the working medium of outside input, drives the rotary shaft and the rotor to rotate；
Using the stator, electric energy is formed according to the rotation of the rotor and exported；
Cooling medium is transmitted by the cooling duct, to be cooled down to the magneto.
In a preferred embodiment of the invention,
It is described that cooling medium is transmitted by the cooling duct, included with carrying out cooling to the magneto：
The working medium for being exported the expanding machine by the condenser is condensed, and forms liquid refrigerant；
The liquid refrigerant caused by the condenser is transmitted by the cooling duct, with by the liquid refrigerant to institute
Magneto is stated to be cooled down.
Integral type electricity generation system provided in an embodiment of the present invention and electricity-generating method, the radial-inward-flow turbine and magneto of expanding machine
Rotor be fixed on same with rotary shaft, rotary shaft is fixed on the enclosure interior of expanding machine and magneto, will expand
Machine is integrated together with magneto.Due to magneto, caused heat is less in the course of the work, so only needing
Cooling duct is set in the hull outside of magneto, cooling medium is carried out by cooling duct to magneto
Cooling can be to meet the cooling requirement of magneto, without setting cooling system in generator.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The required accompanying drawing used is briefly described in technology description, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for the integral type electricity generation system that one embodiment of the invention provides；
Fig. 2 is the integral type generating system that two journal bearings that one embodiment of the invention provides are located at rotating shaft terminal respectively
The schematic diagram of system；
Fig. 3 is the integral type generating system that the only journal bearing that one embodiment of the invention provides is located at rotary shaft end
The schematic diagram of system；
Fig. 4 is the integral type generating system that two journal bearings that one embodiment of the invention provides are not located at rotary shaft end
The schematic diagram of system；
Fig. 5 is the schematic diagram for the cooling duct that one embodiment of the invention provides；
Fig. 6 is the schematic diagram of the electromagnetic bearing that one embodiment of the invention provides and parking bearing with rotating Axile connection structure；
Fig. 7 is the electricity-generating method flow chart that one embodiment of the invention provides.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment
It is part of the embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of creative work is not made, belong to what the present invention protected
Scope.
As shown in figure 1, the embodiments of the invention provide integral type electricity generation system, including：Expanding machine 101 and permanent magnet generator
Machine 102；
The rotor 1021 of at least one radial-inward-flow turbine 1011 that the expanding machine 101 includes and the magneto 102
It is fixed in same root rotary shaft 103, the radial-inward-flow turbine 1011 drives the rotation under the driving of the working medium of outside input
Rotating shaft 103 and the rotor 1021 rotate；
The housing of the expanding machine 101 is fixedly connected with the housing of magneto 102, and the rotary shaft 103 is by extremely
Few two journal bearings are fixed on the housing of the expanding machine 101 and the enclosure interior of the magneto 102；
The stator 1022 of the magneto 102, for forming electric energy according to the rotation of the rotor 1021 and exporting；
Cooling duct is provided with the shell wall of the housing of the magneto 102, the cooling duct, which is used to transmit, to be cooled down
Medium, to be cooled down to the magneto 102.
Integral type electricity generation system provided in an embodiment of the present invention, the radial-inward-flow turbine of expanding machine and the rotor of magneto are fixed
Same with rotary shaft, rotary shaft is fixed on the enclosure interior of expanding machine and magneto, expanding machine and permanent magnetism are sent out
Motor is integrated together.Due to magneto, caused heat is less in the course of the work, so only needing to send out in permanent magnetism
The hull outside of motor sets cooling duct, and cooling medium is carried out cooling to magneto by cooling duct can be with
Meet the cooling requirement of magneto, without setting cooling system in generator.
In an embodiment of the invention, rotary shaft 103 can be fixed on expanding machine 101 by two journal bearings
The enclosure interior of housing and magneto 102, the first journal bearing in two journal bearings can be fixed on rotary shaft
103 the first shaft end, can also be fixed between the first shaft end of rotary shaft 103 and rotor 1021；Two journal bearings
In the second journal bearing can be fixed on the second shaft end of rotary shaft 103, the second of rotary shaft 103 can also be fixed on
Between shaft end and rotor.According to the fixed position of the first journal bearing and the second journal bearing, integral type electricity generation system has
Following three kinds of forms：
Form 1：First journal bearing is fixed on the first shaft end of rotary shaft, and the second journal bearing is fixed on the of rotary shaft
Two shaft ends；
Form 2：First journal bearing is fixed between the first shaft end of rotary shaft and rotor, and the second journal bearing is fixed on
Second shaft end of rotary shaft；
Form 3：First journal bearing is fixed between the first shaft end of rotary shaft and rotor, and the second journal bearing is fixed on
Between second shaft end of rotary shaft and rotor.
For form 1：
Under the form 1, as shown in Fig. 2 the first journal bearing 2041 and the second journal bearing 2042 are individually fixed in
The both ends of rotary shaft 203, the radial-inward-flow turbine 2011 of expanding machine 201 and the rotor 2021 of magneto 202 are positioned at the
Between one journal bearing 2041 and the second journal bearing 2042, the first journal bearing is fixed with rotary shaft 203 successively
2041st, radial-inward-flow turbine 2011, the journal bearing 2042 of rotor 2021 and second；By the housing 2014 and forever of expanding machine 201
The seal casinghousing that the housing 2024 of magnetic generator 202 forms, rotary shaft 203, radial-inward-flow turbine 2011 and rotor 2021 are equal
In the seal casinghousing.Now, the working medium input 2012 of expanding machine 201 is adjacent with the first journal bearing 2041,
The working medium output end 2013 of expanding machine 201 is adjacent with magneto 202.
As shown in Fig. 2 working medium drives radial-inward-flow turbine from adiabatic expansion after the entrance expanding machine 201 of working medium input 2012
2011 rotate, and radial-inward-flow turbine 2011 drives rotary shaft 203 and rotor 2021 to rotate, and stator 2022 is according to rotor 2021
Rotation form electric energy and export, leave expanding machine 201 from working medium output end 2013 after the completion of working medium expansion work, due to
Rotary shaft 203, radial-inward-flow turbine 2011 and rotor 2021 are entirely located in the housing 2014 of expanding machine and the shell of magneto
Inside the seal casinghousing that body 2024 forms, even if thering is part working medium to enter magneto 202 from expanding machine 201, also not
The leakage of working medium can be caused.
Working medium input 2012 is the hot junction of expanding machine 201, and working medium output end 2013 is the cold end of expanding machine 201, swollen
When the cold end of swollen machine 201 is relative with magneto 202, the length of rotary shaft 203 is longer, by the first journal bearing 2041
And second journal bearing 2042 be fixed on the both ends of rotary shaft 203 rotary shaft 203 be supported, rotary shaft can be prevented
203 produce larger radial displacement in rotation process, so as to reduce rotary shaft 203, the first journal bearing 2041 and
The extent of vibration of two journal bearings 2042, improve the job stability of expanding machine 201 and magneto 202.
For form 2：
Under the form 2, as shown in figure 3, radial-inward-flow turbine 3011, the first radial axle are fixed with rotary shaft 303 successively
The journal bearing 3042 of 3041, rotor 3021 and second is held, wherein radial-inward-flow turbine 3011 is fixed on the first of rotary shaft 303
Shaft end, the second journal bearing 3042 are fixed on the second shaft end of rotary shaft 303, by the He of housing 3014 of expanding machine 301
The seal casinghousing that the housing 3024 of magneto 302 forms, rotary shaft 303, radial-inward-flow turbine 3011 and rotor 3021
It is respectively positioned in the seal casinghousing.Now, the working medium input 3012 of expanding machine 301 is adjacent with magneto 302, swollen
The working medium output end 3013 of swollen machine 301 is in rotary shaft 303 on the extended line of first axle extreme direction.
As shown in figure 3, rotary shaft 303 is fixed on permanent magnetism by the first journal bearing 3041 and the second journal bearing 3042
, will be to after the housing 3014 of expanding machine is fixedly connected with the housing 3024 of magneto on the housing 3024 of generator
Heart turbine 3011, rotary shaft 303 and rotor 3021 are sealed in the housing of the housing 3014 and magneto by expanding machine
In the housing of 3024 compositions, because rotary shaft 303 is not passed through housing shell wall, solves working medium and easily rotated from housing
The problem of position that axle passes through leaks.
As shown in figure 3, radial-inward-flow turbine 3011 is fixed on one end of rotary shaft 303, now can be by the work of expanding machine 301
Matter output end 3013 is arranged on rotary shaft 303 on the extended line of first axle extreme direction.Because radial-inward-flow turbine 3011 is single
Level radial structure, it is more stable to driving force caused by rotary shaft 303, thus radial-inward-flow turbine 3011 is fixed and rotary shaft
303 one end, when rotary shaft 303 is supported with cantilever structure to radial-inward-flow turbine 3011, rotary shaft 303, first
The journal bearing 3042 of journal bearing 3041 and second will not also produce stronger vibration, thus expanding machine 301 and permanent magnetism
Generator 302 still is able to the work relatively stablized.In addition, the working medium output end 3013 of expanding machine 301 is arranged on rotary shaft
303 on the extended line of first axle extreme direction, and this structure can connect condenser, high pressure in the axial direction of expanding machine 301
Working medium flows directly out expanding machine 301 by prolonging the direction of rotary shaft 303 after radial-inward-flow turbine 3011, and working medium expands in outflow
The resistance being subject to during machine 301 is smaller, reduces the pressure loss of working medium, improves the efficiency of expanding machine 301.
For form 3：
Under the form 3, as shown in figure 4, expanding machine includes two-stage, respectively expanding machine 401 and expanding machine 402,
Radial-inward-flow turbine 4011 is wherein provided with expanding machine 401, radial-inward-flow turbine 4021, radial-inward-flow turbine are provided with expanding machine 402
4011 are individually fixed in the both ends of rotary shaft 404 with radial-inward-flow turbine 4021；The rotor 4031 of magneto 403 is fixed
In the middle part of rotary shaft 404；The rotation that first journal bearing 4051 is fixed between radial-inward-flow turbine 4011 and rotor 4031
On axle 404, the second journal bearing 4052 is fixed in the rotary shaft 404 between radial-inward-flow turbine 4021 and rotor 4031；
Radial-inward-flow turbine 4011, the first journal bearing 4051, rotor 4031, the second radial axle are fixed with rotary shaft 404 successively
Hold 4052 and radial-inward-flow turbine 4021.The working medium input 4012 of expanding machine 401 and the working medium input 4022 of expanding machine 402
It is perpendicular with rotary shaft 404 and adjacent with magneto 402；The working medium output end 4013 of expanding machine 401 and swollen
The working medium output end 4023 of swollen machine 402 is respectively positioned on the extended line of rotary shaft 404.
As shown in figure 4, by the housing of expanding machine 401, expanding machine 402 and magneto 403 form one closing
Housing, radial-inward-flow turbine 4011, radial-inward-flow turbine 4021, rotary shaft 404 and rotor 4031 are respectively positioned in the closing housing,
Because rotary shaft 404 is not passed through the shell wall of the closing housing, thus without being provided for rotary shaft on the closing housing
404 holes passed through, so as to avoid high-pressure working medium from being used at the hole that passes through of rotary shaft 404 leak from closing housing.
As shown in figure 4, it is single-stage centripetal expander to work as expanding machine 401 and expanding machine 402, in rotary shaft 404
Portion's fixed rotor 4031, radial-inward-flow turbine 4011 and radial-inward-flow turbine 4021 are fixed respectively at the both ends of rotary shaft 404；Due to
Expanding machine 402 is smaller than expanding machine 401, and working medium initially enters expanding machine 402 and carries out one-stage expansion, from swollen after working medium expansion
The working medium output end 4023 of swollen machine 402 exports, and is inputted from the working medium input 4012 of expanding machine 401, into expanding machine
401 carry out compound expansion, and such working medium improves the energy conversion efficiency of working medium by compound expansion.Due to radial-inward-flow turbine
4011 and radial-inward-flow turbine 4021 be separately fixed at the both ends of rotary shaft 404, radial-inward-flow turbine 4011 and radial-inward-flow turbine 4021
When rotating to axial thrust caused by rotary shaft 404 can with partial offset, reduce that rotary shaft 404 is subjected to by
Axial thrust caused by radial-inward-flow turbine, so as to improve the job stability of rotary shaft 404.
In an embodiment of the invention, the arrangement according to cooling duct on the housing of magneto, cooling are logical
Road can have the following two kinds arrangement：
Arrangement 1：The arrangement of spiral winding；
Under arrangement 1, as shown in figure 5, cooling duct 502 is arranged at the shell of magneto in spiral form
On the shell wall of body 501, cooling medium enters cooling duct 502, the helical flow in cooling duct 502 from entrance 5021
Heat caused by magneto is taken away when being flowed in cooling duct 502 from the outflow of outlet 5022, cooling medium afterwards,
To be cooled down to magneto.
Arrangement 2：The arrangement of multi-channel parallel；
Under arrangement 2, cooling duct includes medium input pipe, medium efferent duct and at least two parallel annulars are led to
Road, circular passage are " C " shape structure, are arranged in juxtaposition on the shell wall of the housing of magneto；One end of circular passage
It is connected with medium input pipe, the other end of circular passage is connected with medium efferent duct；Cooling medium enters from medium input pipe
Each circular passage, cooling medium flows in circular passage absorbs heat caused by magneto, and cooling medium is from Jie
Heat caused by magneto is taken away in the outflow of matter efferent duct, to be cooled down to magneto.As shown in Fig. 2
Cooling duct 2023 is arranged on the shell wall of housing 2024 of magneto in the form of 8 circular passages are parallel；Such as
Shown in Fig. 3, cooling duct 3023 is arranged at the housing 3024 of magneto in the form of 8 circular passages are parallel
On shell wall.
In an embodiment of the invention, magneto can be carried out by the cooling medium of its exteriors such as cooling water
Cooling, the working medium that expanding machine exports can also be condensed into after liquid and magneto cooled down as cooling medium.
When being cooled down using working medium as cooling medium to permanent magnetism hair direct driving motor, integral type electricity generation system further comprises
There is condenser.Condenser is connected with cooling duct and expanding machine respectively；Condenser receives the gaseous working medium of expanding machine output,
Liquid refrigerant is formed after being condensed to gaseous working medium, and all or part of liquid refrigerant is transferred to by cooling by pipeline and led to
Road；Cooling duct is transmitted to liquid refrigerant, and liquid refrigerant can absorb heat caused by magneto, work as liquid
After working medium flows out from cooling duct, the heat that magneto is given birth to is taken away, to be cooled down to magneto.
Because the high-temperature low-pressure working medium of expanding machine output needs to turn into low-temp low-pressure working medium by equipment such as condensers, pass through pressure
Contracting equipment forms cryogenic high pressure working medium after being pressurizeed to low-temp low-pressure working medium, cryogenic high pressure working medium, which enters evaporator, turns into height
Warm high-pressure working medium, high pressure-temperature working medium re-form high-temperature low-pressure working medium after entering expander acting, realize working medium
Recycle.Permanent magnetism is inputted by the low-temp low-pressure working medium exported from condenser or from the cryogenic high pressure working medium of compression device output
Cooling duct on generator, on the one hand, cryogenic fluid can be cooled down preferably to magneto；On the other hand,
Cryogenic fluid needs to be absorbed heat into evaporator, cryogenic fluid is inputted into cooling duct, cryogenic fluid can absorb permanent magnetism
Heat caused by generator, the backheat of cryogenic fluid is realized while being cooled down to magneto, improves the energy
Utilization rate.
In an embodiment of the invention, integral type electricity generation system, which further comprises, cod, cod it is interior
Circle is fixedly connected with rotary shaft, and outer ring is fixedly connected with the housing of expanding machine or the housing of magneto, and cod is used
It is fixed in the axial location to rotary shaft.Journal bearing can enter row constraint to position radially of the axis of rotation, but not
The power for entering row constraint to rotary shaft axial location can be provided, and radial-inward-flow turbine can apply axially in rotation process to rotary shaft
Thrust, rotary shaft is connected with the housing of expanding machine or the housing of magneto by cod, cod can
With the generation power opposite with thrust direction caused by radial-inward-flow turbine, the power is used to offset thrust caused by radial-inward-flow turbine, so as to
Cod can enter row constraint to the axial location of rotary shaft, ensure the job stability of rotary shaft.
As shown in Fig. 2 cod 207 is fixed on one end of rotary shaft 203, it is adjacent with the first journal bearing 2041,
The inner ring of cod 207 is fixed with the phase of rotary shaft 203, and outer ring and the phase of housing 2014 of expanding machine are fixed.When centripetal
When flat 2011 rotation produces axial thrust to rotary shaft 203, cod 207 produces counteracting in rotary shaft 203, and this is pushed away
The power of power, row constraint is entered with the axial location to rotary shaft 203, make the housing 2014 of rotary shaft 203 and expanding machine in axle
Relative position on line direction is in the range of allowing.
As shown in figure 3, cod 307 is fixed on the middle part of rotary shaft 303, it is adjacent with the first journal bearing 3041,
The inner ring of cod 307 is fixed with the phase of rotary shaft 303, and outer ring and the phase of housing 3024 of magneto are fixed.When to
When heart turbine 3011 is rotated to the generation axial thrust of rotary shaft 303, cod 307 produces counteracting in rotary shaft 303
The power of the thrust, row constraint is entered with the axial location to rotary shaft 303, makes the housing of rotary shaft 303 and magneto
3024 in the range of axial relative position is in permission.
As shown in figure 4, integral type electricity generation system includes two cods, respectively cod 4071 and axial axis
4072 are held, cod 4071 and cod 4072 are both secured to the middle part of rotary shaft 404, cod 4071
Adjacent with the first journal bearing 4051, cod 4072 is adjacent with the second journal bearing 4052.Although rotary shaft 404
Both ends be provided with radial-inward-flow turbine, but due to the specification of two radial-inward-flow turbines is different or input expanding machine work qualitative attribution not
Together, two radial-inward-flow turbines can not be completely counterbalanced by thrust caused by rotary shaft 404, thus need to set cod 4071
And cod 4072 enters row constraint to the axial location of rotary shaft 404.Cod 4071 and cod 4072 are right
Claim arrangement, make the stress of rotary shaft 404 more balanced, ensure the rotation that rotary shaft 404 can be stablized.
It should be noted that because angular contact bearing can produce axial force and radial forces simultaneously, when using angle
When contact bearing is as journal bearing, angular contact bearing can enter row constraint, thus nothing to the axial location of rotary shaft in itself
Cod need to be set in addition；In addition, when the diameter of axle of rotary shaft is not unique, spacing knot can be set on seal casinghousing
Structure, the shaft shoulder of rotary shaft is set to be in contact with position limiting structure, the axial position by the position limiting structure on seal casinghousing to rotary shaft
Put into row constraint, cod now is set without other.
In an embodiment of the invention, integral type electricity generation system can also include sealing ring, and sealing ring is arranged at expanding machine
Housing and magneto housing junction, sealed for the working medium in the housing to expanding machine.Sealing ring
It can be any one in labyrinth seal, comb sealing ring and brush seal circle, sealing gland, packing seal can be passed through
And the various sealing means such as mechanical seal seal to the working medium in expanding machine housing.
As shown in Fig. 2 it is provided with and is used in the housing 2014 of expanding machine and the junction of the housing 2024 of magneto
The axis hole that rotary shaft 203 passes through, sealing ring 206 are located at the axis hole, and are connected with rotary shaft 203.Sealing ring 206
Working medium in expanding machine 201 is sealed, prevents shell of the working medium more in the housing 2014 of expanding machine by expanding machine
Axis hole on the housing 2024 of body 2014 and magneto enters the housing 2024 of magneto, causes permanent magnet generator
The situation of the operation irregularity of machine 202 occurs, and improves the reliability of operation of magneto 202.
Integral type electricity generation system as shown in Figure 4 includes expanding machine 401 and expanding machine 402, and expanding machine 401 is sent out with permanent magnetism
Motor 403, which is connected at the axis hole on housing, is provided with sealing ring 4081, and expanding machine 402 is connected shell with magneto 403
Sealing ring 4082 is provided with axis hole on body；Sealing ring 4081 is used to prevent the working medium in expanding machine 401 from entering permanent magnetism
Generator 403, sealing ring 4082 are used to prevent the working medium in expanding machine 402 from entering in permanent magnetism Electrical Discharge Machine 403.
In embodiments of the present invention, sealing ring can be brush seal circle, because the size of brush seal circle is smaller, pass through
Brush seal circle seals to the working medium in expanding machine, can reduce the length of rotary shaft, prevent rotary shaft length compared with
Radial vibration by a relatively large margin is produced when long, improves the stability of rotary shaft work.
In an embodiment of the invention, the journal bearing for entering row constraint to rotary shaft radial position can be the axis of rolling
Hold, the bearing such as sliding bearing, or electromagnetic bearing.Because electromagnetic bearing is supported by electromagnetic force to rotary shaft,
Friction, nothing are not present in itself with rotary shaft and without directly contacting, thus between electromagnetic bearing and rotary shaft for electromagnetic bearing
Lubricating and cooling system need to be set, reduce the design difficulty of journal bearing；Further, since between electromagnetic bearing and rotary shaft not
In the presence of friction, reduce the loss of energy in rotary shaft rotation process, improve the generating efficiency of magneto.
In an embodiment of the invention, when journal bearing is electromagnetic bearing, integral type electricity generation system also need to include to
Few two parking bearings, parking bearing are connected with rotary shaft, and adjacent with electromagnetic bearing；When electromagnetic bearing operation irregularity
Parking bearing can be supported to rotary shaft, to ensure that rotary shaft is capable of stopping operating for safety.
Integral type electricity generation system as shown in Figure 2, parking bearing 2051 and parking bearing 2052 are respectively arranged at rotary shaft
203 both ends, parking bearing 2051 is adjacent with electromagnetic bearing 2041, stop bearing 2052 and the phase of electromagnetic bearing 2042
It is adjacent.It can not be produced to rotary shaft 203 when one or two in electromagnetic bearing 2041 and electromagnetic bearing 2042 breaks down
During the electromagnetic force being supported, parking bearing 2051 and parking bearing 2052 are in contact with rotary shaft 203, to rotary shaft
203 are supported, so that rotary shaft 203 is capable of stopping operating for safety, that is, realize the emergency of rotary shaft 203.
Integral type electricity generation system as shown in Figure 3, parking bearing 3051 is arranged at the middle part of rotary shaft 303, with electromagnetic axis
It is adjacent to hold 3041；Parking bearing 3052 is arranged at one end of rotary shaft 303, adjacent with electromagnetic bearing 3042.Work as electromagnetism
Bearing 3041 breaks down with one or two in electromagnetic bearing 3042 can not produce being supported to rotary shaft 303
Electromagnetic force when, stop bearing 3051 and parking bearing 3052 be in contact with rotary shaft 303, rotary shaft 303 is carried out
Support, so that rotary shaft 303 is capable of stopping operating for safety, that is, realize the emergency of rotary shaft 303.
Integral type electricity generation system as shown in Figure 4, parking bearing 4061 be arranged at rotor 4031 and radial-inward-flow turbine 4011 it
Between, and it is adjacent with electromagnetic bearing 4051；Parking bearing 4062 is arranged between rotor 4031 and radial-inward-flow turbine 4021,
It is and adjacent with electromagnetic bearing 4052.When one or two in electromagnetic bearing 4051 and electromagnetic bearing 4052 breaks down not
When can produce the electromagnetic force being supported to rotary shaft 404, stop bearing 4061 and parking bearing 4062 and rotary shaft
404 are in contact, and rotary shaft 404 is supported, so that rotary shaft 404 is capable of stopping operating for safety, that is, realize rotation
The emergency of rotating shaft 404.
As shown in fig. 6, being provided with electromagnetic bearing 6031 and electromagnetic bearing 6032 in rotary shaft 601, and it is provided with parking
Bearing 6021 and parking bearing 6022, wherein parking bearing 6021 is adjacent with electromagnetic bearing 6031, stop bearing 6022
It is adjacent with electromagnetic bearing 6032, wherein the axis of operation ratio electromagnetic bearing 6031 of parking bearing 6021 and the bearing 6022 that stops
It is low with the axis of operation of electromagnetic bearing 6032.When electromagnetic bearing 6031 and electromagnetic bearing 6032 are without output electromagnetic force or electricity
During magnetic force deficiency, the axis of operation of the axis and parking bearing 6021 and the bearing 6022 that stops of rotary shaft 601 coincides,
Rotary shaft 601 is supported by parking bearing 6021 and parking bearing 6022；When electromagnetic bearing 6031 and electromagnetic bearing
During 6032 normal output electromagnetic force, the position in the presence of electromagnetic force of rotary shaft 601 raises, rotary shaft 601 and shutoff spindle
Hold 6021 and parking bearing 6022 separate, the now axis of rotary shaft 601 and electromagnetic bearing 6031 and electromagnetic bearing 6032
Axis of operation coincide, rotary shaft 601 is under the electromagnetic force of electromagnetic bearing 6031 and electromagnetic bearing 6032
Suspended state.Wherein, parking bearing 6021 and parking bearing 6022 can be sliding bearing.
Sent out as shown in fig. 7, one embodiment of the invention provides using any one integral type provided in an embodiment of the present invention
The method that electric system is generated electricity, including：
Step 701：The radial-inward-flow turbine is driven by the working medium of outside input, drives the rotary shaft and described
Rotor rotates；
Step 702：Using the stator, electric energy is formed according to the rotation of the rotor and exported；
Step 703：Cooling medium is transmitted by the cooling duct, to be cooled down to the magneto.
Electricity-generating method provided in an embodiment of the present invention, the working medium of outside input are driven to the radial-inward-flow turbine of expanding machine, to
Heart turbine drives the rotor of rotary shaft and magneto to rotate, and the stator of magneto forms electricity according to the rotation of rotor
It and can export, during magneto generates electricity, cooling transmitted by the cooling duct of magneto hull outside
Medium, to be cooled down to magneto.Because caused heat is less in the magneto course of work, pass through shell
The cooling duct set outside body, which carries out cooling to magneto, to be required with meeting to cool down, thus without in generator
Inside sets cooling system.
In an embodiment of the invention, can be carried out by the working medium that condenser exports to the working medium output end of expanding machine cold
It is solidifying, transmitted using the output working medium for being condensed into liquid as cooling medium in cooling duct, on the one hand realization is to permanent magnet generator
The cooling of machine, on the other hand backheat can be carried out to the working medium for entering subsequent cycle, improve the utilization rate of the energy.
Integral type electricity generation system provided by the invention and electricity-generating method at least have the advantages that：
1st, in the integral type electricity generation system of the present invention and electricity-generating method, the radial-inward-flow turbine of expanding machine and turning for magneto
Son be fixed on it is same with rotary shaft, rotary shaft is fixed on the enclosure interior of expanding machine and magneto, by expanding machine with
Magneto is integrated together.Due to magneto, caused heat is less in the course of the work, so only needing
The hull outside of magneto sets cooling duct, cooling medium is cooled down by cooling duct to magneto
Can be to meet the cooling requirement of magneto, without setting cooling system in generator.
2nd, it is different according to the position of journal bearing in the integral type electricity generation system of the present invention and electricity-generating method, one
Formula electricity generation system has a variety of different structure types, and different structure type has the advantages of different, such as expanding machine
When working medium output end is adjacent with the rotor of magneto, in that context it may be convenient to it is logical that the working medium that expanding machine exports is imported into cooling
Magneto is cooled down in road；When the working medium input of expanding machine is adjacent with the rotor of magneto, expanding machine
Working medium can be exported in the axis direction of rotary shaft, reduce the resistance being subject to during working medium output, avoid the loss of energy；Rotation
When rotating shaft both ends are provided with radial-inward-flow turbine, thrust that two radial-inward-flow turbines can be subject to balance rotating axle, rotary shaft is improved
Rotational stability.
3rd, in the integral type electricity generation system of the present invention and electricity-generating method, journal bearing is arranged in the both ends of rotary shaft, can
To realize that the both ends of rotary shaft support, the radial direction for avoiding rotary shaft from being produced in rotation process by a relatively large margin is rocked, so as to subtract
The vibration of small rotary shaft and bearing, improve the job stability of expanding machine and magneto.
4th, the present invention integral type electricity generation system and electricity-generating method in, can using electromagnetic bearing as journal bearing to rotate
Axle is supported, due to electromagnetic bearing with rotary shaft without directly contacting, but by maglev form to rotary shaft
It is supported, friction will not be produced between electromagnetic bearing and rotary shaft, so as to reduces energy in rotary shaft rotation process
Loss；Further, since not rubbing, so as to produce the phenomenon of frictional heat, thus lubrication need not be set
Device, reduce the design difficulty of bearing.
5th, in the integral type electricity generation system of the present invention and electricity-generating method, when journal bearing is electromagnetic bearing, integral type hair
Electric system further comprises there is parking bearing, and parking bearing can not make rotary shaft safe in electromagnetic bearing during normal work
Parking, avoids the damage of the parts such as rotary shaft, electromagnetic bearing, improves the security of integral type electricity generation system.
6th, in the integral type electricity generation system of the present invention and electricity-generating method, the working medium output end of expanding machine can be with permanent magnet generator
Cooling duct on machine shell is connected, and is input to after the working medium cooling of expanding machine output as cooling medium in cooling duct,
Because the working medium that is exported from expanding machine needs to be reheated to enter next circulation, using working medium as cooling medium,
On the one hand magneto can be cooled down；On the other hand working medium can be heated by magneto, with
Heat caused by magneto is reused, improves the utilization rate of the energy.
It should be noted that herein, such as first and second etc relational terms be used merely to an entity or
Person operates to be made a distinction with another entity or operation, and is not necessarily required or implied and exist between these entities or operation
Any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements are not only wrapped
Include those key elements, but also the other element including being not expressly set out, or also include for this process, method,
Article or the intrinsic key element of equipment.In the absence of more restrictions, limited by sentence "including a ..."
Key element, it is not excluded that also exist in the process including the key element, method, article or equipment it is other it is identical because
Element.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, is merely to illustrate the technology of the present invention
Scheme, it is not intended to limit the scope of the present invention.Any modification for being made within the spirit and principles of the invention,
Equivalent substitution, improvement etc., are all contained in protection scope of the present invention.
Claims (14)
1. integral type electricity generation system, it is characterised in that including：Expanding machine (101) and magneto (102)；
At least one radial-inward-flow turbine (1011) that the expanding machine (101) includes and the magneto (102)
Rotor (1021) is fixed in same root rotary shaft (103), working medium of the radial-inward-flow turbine (1011) in outside input
Driving under drive the rotary shaft (103) and the rotor (1021) to rotate；
The housing of the expanding machine (101) is fixedly connected with the housing of the magneto (102), the rotary shaft
(103) housing and the magneto (102) of the expanding machine (101) are fixed on by least two journal bearings
Enclosure interior；
The stator (1022) of the magneto (102), for forming electricity according to the rotation of the rotor (1021)
Can and it export；
Cooling duct is provided with the shell wall of the housing of the magneto (102), the cooling duct is cold for transmitting
But medium, to be cooled down to the magneto (102).
2. integral type electricity generation system according to claim 1, it is characterised in that
When the rotary shaft (101) by two journal bearings be fixed on the housing of the expanding machine (101) with it is described forever
During the enclosure interior of magnetic generator (102),
The first journal bearing in described two journal bearings is fixed on the first shaft end or described of the rotary shaft (103)
Between one shaft end and the rotor (1021)；
The second journal bearing in described two journal bearings is fixed on the second shaft end or described of the rotary shaft (103)
Between two shaft ends and the rotor (1021).
3. integral type electricity generation system according to claim 2, it is characterised in that
When first journal bearing (2041) is fixed on the first shaft end of the rotary shaft (203), and second footpath
When being fixed on the second shaft end of the rotary shaft (203) to bearing (2042),
The radial-inward-flow turbine (2011) and the rotor (2021) are arranged at first journal bearing (2041) and institute
Between stating the second journal bearing (2042), and the working medium output end (2013) of the expanding machine (201) and the permanent magnetism
Generator (102) is adjacent.
4. integral type electricity generation system according to claim 2, it is characterised in that
When first journal bearing (3041) is arranged at the shaft end of rotary shaft (303) first and the rotor (3021)
Between, and when second journal bearing (3042) is fixed on the second shaft end of the rotary shaft (303),
The radial-inward-flow turbine (3011) is fixed on the first shaft end of the rotary shaft (303), and the rotor (3021) sets
It is placed between first journal bearing (3041) and second journal bearing (3042), and the expanding machine (301)
Working medium input (3012) it is adjacent with the magneto (102).
5. integral type electricity generation system according to claim 2, it is characterised in that
When first journal bearing (4051) is arranged at the first shaft end and the rotor (4031) of the rotary shaft (404)
Between, and when second journal bearing (4052) is arranged between second shaft end and the rotor (4031),
The rotor (4031) is arranged in the middle part of the rotary shaft (404)；
The expanding machine (401,402) includes two radial-inward-flow turbines, wherein, in described two radial-inward-flow turbines first to
Heart turbine (4011) is fixed on the first shaft end of the rotary shaft (404), and second in described two radial-inward-flow turbines is centripetal
Turbine (4021) is fixed on the second shaft end of the rotary shaft (404), and the working medium of the expanding machine (401,402)
Input (4012,4022) is adjacent with the magneto (102).
6. integral type electricity generation system according to claim 1, it is characterised in that
The cooling duct (502) is arranged at the shell wall (501) of the housing of the magneto (102) in spiral form
On；
Or,
The cooling duct is arranged at the housing of the magneto (102) in the form of at least two circular passages are parallel
Shell wall on.
7. integral type electricity generation system according to claim 6, it is characterised in that further comprise：Condenser；
The condenser is connected with the expanding machine and the cooling duct respectively；
The condenser, the working medium for being exported to the expanding machine condense, and form liquid refrigerant；
The cooling duct, the liquid refrigerant formed for transmitting the condenser, to pass through the liquid refrigerant pair
The permanent magnet direct-drive generator is cooled down.
8. integral type electricity generation system according to claim 1, it is characterised in that further comprise：Cod；
The inner ring of the cod is fixedly connected with the rotary shaft, the outer ring of the cod and the expanding machine
(101) housing or the housing of the magneto (102) is fixedly connected, for the axial position to the rotary shaft
Put and be fixed.
9. integral type electricity generation system according to claim 1, it is characterised in that further comprise：Sealing ring；
The sealing ring is connected with the rotary shaft, positioned at housing and the magneto of the expanding machine (101)
(102) junction of housing, sealed for the working medium in the housing to the expanding machine (101).
10. integral type electricity generation system according to claim 9, it is characterised in that
The sealing ring includes：Labyrinth seal, comb sealing ring, brush seal circle, gas sealing mechanism, packing seal
Any one in device and mechanically-sealing apparatus.
11. integral type electricity generation system according to claim 1, it is characterised in that
The journal bearing is electromagnetic bearing.
12. integral type electricity generation system according to claim 11, it is characterised in that further comprise：At least two
Stop bearing；
The parking bearing is connected with the rotary shaft, and adjacent with the journal bearing；
The parking bearing, for being carried out when the electromagnetic bearing does not have normal work to the position radially of the axis of rotation
Limit.
13. carry out electricity-generating method using any described integral type electricity generation system in claim 1 to 12, it is characterised in that
Comprise the following steps：
The radial-inward-flow turbine (1011) is driven by the working medium of outside input, drive the rotary shaft (103) and
The rotor (1021) rotates (701)；
Using the stator (1022), electric energy is formed according to the rotation of the rotor (1021) and exported (702)；
Cooling medium is transmitted by the cooling duct, to be cooled down (703) to the magneto (102).
14. electricity-generating method according to claim 13, it is characterised in that
It is described that cooling medium is transmitted by the cooling duct, included with carrying out cooling to the magneto (102)：
The working medium that the expanding machine (101) exports is condensed by the condenser, forms liquid refrigerant；
The liquid refrigerant caused by the condenser is transmitted by the cooling duct, with by the liquid refrigerant to institute
Magneto (102) is stated to be cooled down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562910.8A CN107620616A (en) | 2016-07-15 | 2016-07-15 | Integral type electricity generation system and electricity-generating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562910.8A CN107620616A (en) | 2016-07-15 | 2016-07-15 | Integral type electricity generation system and electricity-generating method |
Publications (1)
| Publication Number | Publication Date |
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| CN107620616A true CN107620616A (en) | 2018-01-23 |
Family
ID=61087994
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610562910.8A Pending CN107620616A (en) | 2016-07-15 | 2016-07-15 | Integral type electricity generation system and electricity-generating method |
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| EP4195466A1 (en) | 2021-12-09 | 2023-06-14 | Air Products and Chemicals, Inc. | Hydrogen expander magnetic generator apparatus and method |
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| CN104685769A (en) * | 2012-10-02 | 2015-06-03 | 雷米技术有限公司 | Electric machine including a housing having materially integrally formed coolant channels and an outer sleeve |
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