CN107605557B - A kind of organic Rankine cycle power generation system - Google Patents
A kind of organic Rankine cycle power generation system Download PDFInfo
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- CN107605557B CN107605557B CN201710960377.5A CN201710960377A CN107605557B CN 107605557 B CN107605557 B CN 107605557B CN 201710960377 A CN201710960377 A CN 201710960377A CN 107605557 B CN107605557 B CN 107605557B
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Abstract
The present invention provides a kind of organic Rankine cycle power generation system, it is equipped with the First Heat Exchanger and the second heat exchanger connected by first circulation pipeline in vaporising device, and the first two-fluid working medium containing the first liquid metal and the first organic working medium is housed in first circulation pipeline；Meanwhile the third heat exchanger and the 4th heat exchanger connected by second circulation pipeline is equipped in condensing unit, and second circulation pipeline is provided with the second two-fluid working medium containing the second liquid metal and the second organic working medium.Due to the high thermal conductivity of liquid metal in two kinds of two-fluid working medium, heat can quickly be spread, improve the exothermal efficiency of heat source medium, the heat absorption efficiency of cold source medium, and the heat absorption of organic working medium and exothermal efficiency in Organic Rankine Cycle pipeline, the organic working medium latent heat of phase change contained in two-fluid working medium is utilized simultaneously, more heats can be stored, realize that the transmitting of more efficient heat and heat exchanger two sides working medium are preferably thermally matched, to improve electricity generation system efficiency on the whole.
Description
Technical field
The present invention relates to low grade heat energies to utilize technical field, and generating electricity more particularly, to a kind of Organic Rankine Cycle is
System.
Background technique
For low grade heat energy using being an important channel for solving energy problem, low grade heat energy includes industrial low-temperature waste heat
And geothermal energy, solar energy, biomass energy of new energy field etc..Utilization to low grade heat energy can not only improve the energy
Utilization rate promotes energy-saving and emission-reduction, moreover it is possible to optimize energy resource supply structure, have important practical significance.
Organic Rankine cycle power generation system (Organic Rankine Cycle Power Generation, referred to as
It ORCPG) is a kind of electricity generation system that can convert low grade heat energy to electric energy having confirmed, which is made by vaporising device
Organic working medium is heated with low grade heat energy, generates organic working medium steam, the high drive expanding machine acting of organic working medium steam is real
Show the transformation of thermal energy to mechanical energy, and drive generator, produce electricl energy, it is cooling that the organic working medium of vapor state enters condensing unit
For liquid, and vaporising device is again introduced by working medium pump and starts new circulation.
Currently, organic Rankine cycle power generation system is direct in vaporising device using the heat source medium of low grade heat energy
With organic working medium realize heat exchange, however the type of the heat source medium of low grade heat energy be it is diversified, it is most of low-grade
It is not undergone phase transition after the heat source medium cooling of thermal energy, belongs to sensible heat heat release, and become steam after organic working medium heat absorption, Yao Jingli
Phase transformation, there are latent heats of phase change, so that the heat transfer temperature difference variation of different location very greatly, is unfavorable for conducting heat in vaporising device, system
The efficiency decline of heat transmitting.
Summary of the invention
In order to overcome the above problem or at least be partially solved the above problem, the present invention provides a kind of Organic Rankine Cycle
Electricity generation system.
According to an aspect of the present invention, a kind of organic Rankine cycle power generation system is provided, comprising: vaporising device；Evaporation
Device includes First Heat Exchanger, the second heat exchanger, the first transfer tube and first circulation pipeline；First Heat Exchanger passes through first circulation
Pipeline is connect with the second heat exchanger, and First Heat Exchanger is also connect with Organic Rankine Cycle pipeline, and the second heat exchanger is also situated between with heat source
The connection of matter pipeline, Organic Rankine Cycle pipeline are provided with organic working medium, heat source medium pipeline be used to be filled with to the second heat exchanger and
Heat source medium is discharged；The inside of first circulation pipeline is arranged in first transfer tube, and first circulation pipeline is provided with the first two-fluid
Working medium, the first transfer tube drive the first two-fluid working medium to circulate between First Heat Exchanger and the second heat exchanger, and first pair
It include the first liquid metal in fluid working substance.
It wherein, further include the first organic working medium in the first two-fluid working medium, the boiling point of the first organic working medium is higher than organic work
The critical-temperature of matter, and the boiling point of the first organic working medium is lower than temperature when heat source medium enters vaporising device.
Wherein, the opposite flow direction of organic working medium and the first two-fluid working medium uses adverse current in First Heat Exchanger；Second
The first two-fluid working medium and the opposite flow direction of heat source medium are using adverse current in heat exchanger.
Wherein, organic Rankine cycle power generation system further includes condensing unit；Condensing unit includes third heat exchanger, the 4th changes
Hot device, the second transfer tube and second circulation pipeline；Third heat exchanger is connect by second circulation pipeline with the 4th heat exchanger, third
Heat exchanger is also connect with Organic Rankine Cycle pipeline, and the 4th heat exchanger is also connect with cold source medium pipeline, and cold source medium pipeline is used
Tetra- heat exchanger of Yu Xiang is filled with and is discharged cold source medium；The inside of second circulation pipeline, second circulation is arranged in second transfer tube
Pipeline is provided with the second two-fluid working medium, and the second transfer tube drives the second two-fluid working medium in third heat exchanger and the 4th heat exchanger
Between circulate, in the second two-fluid working medium include the second liquid metal.
It wherein, further include the second organic working medium in the second two-fluid working medium, the boiling point of the second organic working medium is lower than organic work
The condensation temperature of matter, and the boiling point of the second organic working medium is higher than temperature when cold source medium enters condensing unit.
Wherein, the opposite flow direction of organic working medium and the second two-fluid working medium uses adverse current in third heat exchanger；The 4th
The second two-fluid working medium and the opposite flow direction of cold source medium are using adverse current in heat exchanger.
Wherein, the hydraulic diameter of Organic Rankine Cycle pipeline, first circulation pipeline and second circulation pipeline be 10nm~
10cm。
Wherein, first circulation pipeline is equipped with closed first opening, and the first opening is for filling the first two-fluid working medium；
Second circulation pipeline is equipped with closed second opening, and the second opening is for filling the second two-fluid working medium.
Wherein, the first transfer tube and the second transfer tube are electromagnetic pump, mechanical pump or electrowetting pump.
A kind of organic Rankine cycle power generation system provided by the invention, by vaporising device be equipped with First Heat Exchanger and
Second heat exchanger is connected between First Heat Exchanger and the second heat exchanger by first circulation pipeline, is equipped in first circulation pipeline
The first two-fluid working medium containing liquid metal, the first two-fluid working medium are recycled in first circulation pipeline by the first transfer tube
It flows, also includes the first organic working medium in the first two-fluid working medium；Meanwhile third heat exchanger and the 4th are equipped in condensing unit
Connected between heat exchanger, third heat exchanger and the 4th heat exchanger by second circulation pipeline, second circulation pipeline be provided with containing
Second two-fluid working medium of liquid metal, the second two-fluid working medium are circulated in two circulating lines by the second transfer tube,
It also include the second organic working medium in second two-fluid working medium.Due to the high thermal conductivity of liquid metal in two kinds of two-fluid working medium,
Heat can be quickly spread, the exothermal efficiency of heat source medium, the heat absorption efficiency and Organic Rankine Cycle of cold source medium are improved
The heat absorption of organic working medium and exothermal efficiency in pipeline, while utilizing the first organic working medium contained respectively in two kinds of two-fluid working medium
With the latent heat of phase change of the second organic working medium, more heats can be stored, realize transmitting and each heat exchanger two of more efficient heat
Side working medium is preferably thermally matched, to improve electricity generation system efficiency on the whole.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention one
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the schematic diagram according to the organic Rankine cycle power generation system of the embodiment of the present invention；
Appended drawing reference:
1- vaporising device；2- Organic Rankine Cycle pipeline；
3- expanding machine；4- generator；
5- condensing unit；6- working medium pump；
11- First Heat Exchanger；The second heat exchanger of 12-；
The first transfer tube of 13-；14- second circulation pipeline；
15- heat source medium pipeline；51- third heat exchanger；
The 4th heat exchanger of 52-；The second transfer tube of 53-；
54- third circulating line；55- cold source medium pipeline.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, is clearly and completely described the technical solution in the present invention, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
In one embodiment of the invention, with reference to Fig. 1, a kind of organic Rankine cycle power generation system is provided, comprising: evaporation
Device 1；Vaporising device 1 includes First Heat Exchanger 11, the second heat exchanger 12, the first transfer tube 13 and first circulation pipeline 14；The
One heat exchanger 11 is connect by first circulation pipeline 14 with the second heat exchanger 12, First Heat Exchanger 11 also with Organic Rankine Cycle pipe
Road 2 connects, and the second heat exchanger 12 is also connect with heat source medium pipeline 15, and Organic Rankine Cycle pipeline 2 is provided with organic working medium, heat
Source medium pipeline 15 is used to be filled with and be discharged heat source medium to the second heat exchanger 12；First transfer tube 13 is arranged in first circulation pipe
The inside in road 14, first circulation pipeline 14 are provided with the first two-fluid working medium, and the first transfer tube 13 drives the first two-fluid working medium
It is circulated between First Heat Exchanger 11 and the second heat exchanger 12, includes the first liquid metal in the first two-fluid working medium.
Specifically, currently, there is usually one heat exchanger, heat source mediums in the vaporising device of Organic Rankine Cycle power generation system
Heat exchange is directly realized in the heat exchanger with organic working medium, but since organic working medium has one from liquid to gaseous phase
Change process, the heat transfer temperature difference variation of organic working medium different location in the heat exchanger very greatly, are unfavorable for conducting heat, affect hot transmitting
Efficiency.
In the present embodiment, two heat exchangers, i.e. First Heat Exchanger 11 and the second heat exchanger 12 have been used in vaporising device 1,
It connects and the first two-fluid working medium, the first two-fluid is housed in the first circulation pipeline 14 of First Heat Exchanger 11 and the second heat exchanger 12
It include the first liquid metal in working medium；At work, the first transfer tube 13 in vaporising device 1 drives first pair to vaporising device 1
Fluid working substance circulates between First Heat Exchanger 11 and the second heat exchanger 12, meanwhile, heat source medium passes through heat source medium pipe
Road 15 enters the second heat exchanger 12, and the first two-fluid working medium is transferred heat in the second heat exchanger 12, due to the first double fluid
Include the first liquid metal in body working medium, there is high thermal conductivity, can quickly spread heat, improves the heat release effect of heat source medium
Rate；It is driven after the heat of first two-fluid working medium absorption heat source medium through the first transfer tube 13, passes through first circulation pipeline 14 and flow
Enter First Heat Exchanger 11, organic working medium is flowed into First Heat Exchanger 11 by Organic Rankine Cycle pipeline 2, and organic working medium is first
Become steam after absorbing the heat of the first two-fluid working medium in heat exchanger 11, also due to liquid metal in the first two-fluid working medium
High thermal conductivity, the heat in the first two-fluid working medium can be sufficiently transmitted to organic working medium, improve the heat absorption efficiency of organic working medium；
The high pressure steam driving expanding machine 3 of organic working medium does work, and realizes the transformation of thermal energy to mechanical energy, and drive generator 4, generates electricity
Can, the organic working medium of vapor state enters condensing unit 5 and is cooled to liquid, and is again introduced into evaporation dress by the driving of working medium pump 6
Set the new circulation of 1 beginning.
Wherein, First Heat Exchanger and the second heat exchanger are to have fin or the pipe heat exchanger without fin.
The present embodiment is changed by being equipped with First Heat Exchanger and the second heat exchanger, First Heat Exchanger and second in vaporising device
It is connected between hot device by first circulation pipeline, and is packed into the first two-fluid work containing liquid metal in first circulation pipeline
Matter, the first two-fluid working medium are circulated in a circulating line by the first transfer tube, and heat source medium is in the second heat exchanger
It, can be quick due to the high thermal conductivity of liquid metal in the first two-fluid working medium when transferring heat to the first two-fluid working medium
Heat is spread, the exothermal efficiency of heat source medium can be improved, meanwhile, the first two-fluid working medium passes heat in First Heat Exchanger
When passing organic working medium, also due in the first two-fluid working medium liquid metal high thermal conductivity, the heat in the first two-fluid working medium
Amount can be sufficiently transmitted to organic working medium, the heat absorption efficiency of organic working medium be improved, to improve electricity generation system on the whole
Heat transference efficiency.
It further include the first organic working medium, the boiling point of the first organic working medium in the first two-fluid working medium based on above embodiments
Higher than the critical-temperature of organic working medium, and the boiling point of the first organic working medium is lower than temperature when heat source medium enters vaporising device.
Specifically, further including the first organic working medium in the first two-fluid working medium, first is transferred heat in heat source medium
When two-fluid working medium, since the boiling point of the first organic working medium is lower than temperature when heat source medium enters vaporising device, part first
Organic working medium can be changing into gaseous state from liquid, and phase transformation has occurred, and due to latent heat of phase change, can absorb more heats；And first
When two-fluid working medium transfers heat to organic working medium, since the boiling point of the first organic working medium is higher than the stagnation temperature of organic working medium
Degree, before organic working medium becomes gaseous state completely, the first organic working medium can persistently be given organic using the heat of latent heat of phase change storage
Refrigerant heat transfer, cooling becomes liquid again after heat release；Therefore, in the first two-fluid working medium during circulating,
By rationally designing and selecting the boiling point of the first organic working medium in the first two-fluid working medium, using the phase of the first organic working medium
Become latent heat, stores more heats, realize the transmitting of more efficient heat.
For example, the temperature that heat source medium enters vaporising device is 150 DEG C, then first organic work in the first two-fluid working medium
The normal octane that boiling point is 125.62 DEG C can be selected in matter, and 1, the 1- difluoro second that critical-temperature is 113.26 DEG C can be selected in organic working medium
Alkane (R152a)；It is 200 DEG C that for another example heat source medium, which enters the temperature of vaporising device, then first in the first two-fluid working medium is organic
The positive flow silane that boiling point is 174.12 DEG C can be selected in working medium, and the normal butane that critical-temperature is 151.98 DEG C can be selected in organic working medium
(R600)；Likewise, the temperature that heat source medium enters vaporising device is 250 DEG C, then first in the first two-fluid working medium is organic
The decamethylcyclopentaandoxane (D5) that the n-dodecane that boiling point is 216.15 DEG C or boiling point are 210.9 DEG C can be selected in working medium, and has
The 1- fluorine butane that critical-temperature is 192.85 DEG C can be selected in machine working medium；The temperature that heat source medium enters vaporising device is 300 DEG C, then
The first organic working medium in first two-fluid working medium can be selected the dodecamethylcyclohexasiloxane (D6) that boiling point is 244.96 DEG C or
The tetradecamethylhexasiloxane (MD4M) that boiling point is 260.75 DEG C, and two that critical-temperature is 194.85 DEG C can be selected in organic working medium
Fluoro-propane (R272fa).
The present embodiment utilizes by the way that the first organic working medium of appropriate boiling point is selected and be added in the first two-fluid working medium
The latent heat of phase change of one organic working medium makes the first two-fluid working medium that can absorb more heats in endothermic process, in exothermic process
It is middle to discharge more heats, to realize the transmitting of more efficient heat.
Based on above embodiments, organic working medium is opposite with the first two-fluid working medium in First Heat Exchanger is flowed to using inverse
Stream；The first two-fluid working medium and the opposite flow direction of heat source medium are using adverse current in the second heat exchanger.
Specifically, the opposite flow direction of fluid generally has two kinds of fair current and adverse current in heat exchanger.The mode of fair current, makes inlet
The temperature difference of two fluids is maximum, and is gradually reduced along the direction temperature difference of fluid flowing, until the exit temperature difference is minimum；The side of adverse current
Formula, the fast speed of two kinds of fluid relative motions is, it can be achieved that uniformly transfer heat.Under conditions of completing same heat output, using inverse
The mode of stream can be such that mean temperature difference increases, and the heat transfer area of heat exchanger reduces；If heat transfer area is constant, using can make when adverse current plus
The consumption of heat or cooling fluid reduces.Organic working medium is opposite with the first two-fluid working medium in First Heat Exchanger in the present embodiment
The first two-fluid working medium and the opposite of heat source medium flow to the mode of preferred adverse current in flow direction and the second heat exchanger, but are not excluded for selecting
With other modes.
Based on above embodiments, with reference to Fig. 1, which further includes condensing unit 5；Condensing unit
5 include third heat exchanger 51, the 4th heat exchanger 52, the second transfer tube 53 and second circulation pipeline 54；Third heat exchanger 51 passes through
Second circulation pipeline 54 is connect with the 4th heat exchanger 52, and third heat exchanger 51 is also connect with Organic Rankine Cycle pipeline 2, and the 4th changes
Hot device 52 is also connect with cold source medium pipeline 55, and cold source medium pipeline 55, which is used to being filled with and being discharged cold source to the 4th heat exchanger 52, to be situated between
Matter；The inside of second circulation pipeline 54 is arranged in second transfer tube 53, and second circulation pipeline 54 is provided with the second two-fluid working medium,
Second transfer tube 53 drives the second two-fluid working medium to circulate between third heat exchanger 51 and the 4th heat exchanger 52, and second pair
It include the second liquid metal in fluid working substance.
Specifically, having used two heat exchangers, i.e. third heat exchanger 51 and the 4th heat exchanger 52 in condensing unit 5, connect
Second two-fluid working medium, the second two-fluid working medium are housed in the second circulation pipeline 54 of third heat exchanger 51 and the 4th heat exchanger 52
In include the second liquid metal；Condensing unit 5 at work, organic work of high-temperature vapour state in Organic Rankine Cycle pipeline 2
Matter enters third heat exchanger 51, and the second transfer tube 53 drives the second two-fluid working medium to flow into third heat exchanger 51, the second two-fluid
Working medium absorbs the heat of the organic working medium of high-temperature vapour state in third heat exchanger 51, and becomes the organic working medium of vapor state
Liquid is returned, and vaporising device 1 is driven by working medium pump 6；Due to the high thermal conductivity of liquid metal in the second two-fluid working medium,
So that the second two-fluid working medium is quickly spread heat, improves the heat absorption efficiency of the second two-fluid working medium；Second transfer tube
53 the second two-fluid working medium of driving circulate between third heat exchanger 51 and the 4th heat exchanger 52, meanwhile, cold source medium is logical
It crosses cold source medium pipeline 55 and enters the 4th heat exchanger 52, the second two-fluid working medium is realized in the 4th heat exchanger 52 with cold source medium
Heat transmitting has high thermal conductivity, can quickly spread heat, mention due to including the second liquid metal in the second two-fluid working medium
The high exothermal efficiency of second two-fluid working medium；To improve condensing unit on the whole to the cooling efficiency of organic working medium.
Wherein, third heat exchanger and the 4th heat exchanger are to have fin or the pipe heat exchanger without fin.
The present embodiment is changed by being equipped with third heat exchanger and the 4th heat exchanger, third heat exchanger and the 4th in condensing unit
It is connected between hot device by second circulation pipeline, and is packed into the second two-fluid work containing liquid metal in second circulation pipeline
Matter, the second two-fluid working medium are circulated in two circulating lines by the second transfer tube, and the second two-fluid working medium is changed in third
When absorbing the heat of the organic working medium of vapor state in hot device, due to the high thermal conductivity of liquid metal in the second two-fluid working medium,
Second two-fluid working medium can quickly spread heat, improve the heat absorption efficiency of the second two-fluid working medium；Meanwhile cold source medium
When absorbing the heat of the second two-fluid working medium in the 4th heat exchanger, due to the high thermal conductivity of liquid metal in the second two-fluid working medium
Rate can quickly spread heat, the exothermal efficiency of the second two-fluid working medium be improved, to improve condensing unit on the whole
Cooling efficiency.
It further include the second organic working medium, the boiling point of the second organic working medium in the second two-fluid working medium based on above embodiments
Lower than the condensation temperature of organic working medium, and the boiling point of the second organic working medium is higher than temperature when cold source medium enters condensing unit.
Specifically, further include the second organic working medium in the second two-fluid working medium, vapor state organic working medium by heat
When being transferred to the second two-fluid working medium, since the boiling point of the second organic working medium is lower than the condensation temperature of organic working medium, part second
Organic working medium can be changing into gaseous state from liquid, and phase transformation has occurred, and due to latent heat of phase change, can absorb more heats；And second
When two-fluid working medium transfers heat to cold source medium, enter condensation dress since the boiling point of the second organic working medium is higher than cold source medium
Temperature when setting, the second organic working medium can persistently give cold source medium heat-transfer using the heat of latent heat of phase change storage, discharge in heat
After cooling become liquid again；Therefore, in the second two-fluid working medium during circulating, by rationally designing and selecting
The boiling point of the second organic working medium in two two-fluid working medium stores more heat using the latent heat of phase change of the second organic working medium
Amount, realizes the transmitting of more efficient heat, to realize better cooling effect.
For example, the condensation temperature of organic working medium is 30 DEG C, and water can be selected in cold source medium, temperature when into condensing unit
It is 10 DEG C, then it is 15.14 DEG C of pentafluoropropane (R245fa) that the second organic working medium in the second two-fluid working medium, which selects boiling point,；Again
If the condensation temperature of organic working medium is 25 DEG C, and refrigerant can be selected in cold source medium, and temperature when into condensing unit is 0
DEG C, then the neopentane that boiling point is 9.5 DEG C can be selected in the second organic working medium in the second two-fluid working medium.
The present embodiment utilizes by the way that the second organic working medium of appropriate boiling point is selected and be added in the second two-fluid working medium
The latent heat of phase change of two organic working mediums makes the second two-fluid working medium that can absorb more heats in endothermic process, in exothermic process
It is middle to discharge more heats, to realize better cooling effect.
Based on above embodiments, organic working medium is opposite with the second two-fluid working medium in third heat exchanger is flowed to using inverse
Stream；The second two-fluid working medium and the opposite flow direction of cold source medium are using adverse current in the 4th heat exchanger.
Specifically, mean temperature difference can be made to increase due under conditions of completing same heat output by the way of adverse current, changed
The heat transfer area of hot device reduces；If heat transfer area is constant, reduced using the consumption that can make to be heated or cooled fluid when adverse current.This
In embodiment in third heat exchanger second in the opposite flow direction and the 4th heat exchanger of the first organic working medium and the second two-fluid working medium
Two-fluid working medium and the opposite of cold source medium flow to the mode of preferred adverse current, but are not excluded for selecting other modes.
Based on above embodiments, the hydraulic diameter of Organic Rankine Cycle pipeline, first circulation pipeline and second circulation pipeline
For 10nm~10cm.
Specifically, the cross-sectional shape of first circulation pipeline, second circulation pipeline and third circulating line is round, square
Shape, square or triangle, each duct length can be selected according to the demand that uses, in the range of 10 centimetres to 100 meters, water
Power diameter is 10nm to 10cm.
Based on above embodiments, first circulation pipeline is equipped with closed first opening, and the first opening is for filling first
Two-fluid working medium；Second circulation pipeline is equipped with closed second opening, and the second opening is for filling the second two-fluid working medium.
Specifically, opening is equipped at one end, so as to it will melt after when each circulating line is connect with transfer tube or heat exchanger
Liquid metal and low-boiling organic working medium are from the opening injection circulatory system, after the fluid of entire circulating line is populated,
When by above-mentioned closure of openings, that is, forming internal pipeline is closed efficient circulation pipeline.
Based on above embodiments, the first transfer tube and the second transfer tube are electromagnetic pump, mechanical pump or electrowetting pump.
Specifically, including liquid metal, the first transfer tube and second in the first two-fluid working medium and the second two-fluid working medium
The electromagnetic pump of movement-less part can be selected in transfer tube, to reduce power consumption, mechanical pump or electrowetting can also be selected to pump.
Based on above embodiments, First Heat Exchanger, the second heat exchanger, third heat exchanger, the 4th heat exchanger and first are followed
The material in endless tube road, second circulation pipeline and third circulating line can be selected gold, silver, stainless steel, diamond, graphite, copper, titanium or
Ceramics；Liquid metal in first two-fluid working medium and the second two-fluid working medium can be selected gallium, gallium-indium alloy, gallium-indium-tin alloy or
One or more of bismuth indium stannum alloy.
Finally, it is stated that: the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of organic Rankine cycle power generation system characterized by comprising vaporising device；
The vaporising device includes First Heat Exchanger, the second heat exchanger, the first transfer tube and first circulation pipeline；
The First Heat Exchanger is connect by the first circulation pipeline with second heat exchanger, the First Heat Exchanger also with
The connection of Organic Rankine Cycle pipeline, second heat exchanger are also connect with heat source medium pipeline, the Organic Rankine Cycle pipeline
It is provided with organic working medium, the heat source medium pipeline is used to be filled with and be discharged heat source medium to second heat exchanger；
The inside of the first circulation pipeline is arranged in first transfer tube, and the first circulation pipeline is provided with the first double fluid
Body working medium, first transfer tube drive the first two-fluid working medium the First Heat Exchanger and second heat exchanger it
Between circulate, in the first two-fluid working medium include the first liquid metal.
2. organic Rankine cycle power generation system according to claim 1, which is characterized in that in the first two-fluid working medium
It further include the first organic working medium, the boiling point of first organic working medium is higher than the critical-temperature of the organic working medium, and described the
The boiling point of one organic working medium enters the temperature when vaporising device lower than the heat source medium.
3. organic Rankine cycle power generation system according to claim 1, which is characterized in that the institute in the First Heat Exchanger
The opposite flow direction of organic working medium and the first two-fluid working medium is stated using adverse current；First pair described in second heat exchanger
The opposite flow direction of fluid working substance and the heat source medium is using adverse current.
4. organic Rankine cycle power generation system according to claim 1, which is characterized in that further include condensing unit；
The condensing unit includes third heat exchanger, the 4th heat exchanger, the second transfer tube and second circulation pipeline；
The third heat exchanger is connect by the second circulation pipeline with the 4th heat exchanger, the third heat exchanger also with
The Organic Rankine Cycle pipeline connection, the 4th heat exchanger are also connect with cold source medium pipeline, the cold source medium pipeline
For being filled with and being discharged cold source medium to the 4th heat exchanger；
The inside of the second circulation pipeline is arranged in second transfer tube, and the second circulation pipeline is provided with the second double fluid
Body working medium, second transfer tube drive the second two-fluid working medium the third heat exchanger and the 4th heat exchanger it
Between circulate, in the second two-fluid working medium include the second liquid metal.
5. organic Rankine cycle power generation system according to claim 4, which is characterized in that in the second two-fluid working medium
It further include the second organic working medium, the boiling point of second organic working medium is lower than the condensation temperature of the organic working medium, and described the
The boiling point of two organic working mediums is higher than the temperature when cold source medium enters the condensing unit.
6. organic Rankine cycle power generation system according to claim 4, which is characterized in that the institute in the third heat exchanger
The opposite flow direction of organic working medium and the second two-fluid working medium is stated using adverse current；Second pair described in the 4th heat exchanger
The opposite flow direction of fluid working substance and the cold source medium is using adverse current.
7. organic Rankine cycle power generation system according to claim 4, which is characterized in that the Organic Rankine Cycle pipe
The hydraulic diameter in road, the first circulation pipeline and the second circulation pipeline is 10nm~10cm.
8. organic Rankine cycle power generation system according to claim 4, which is characterized in that the first circulation pipeline is equipped with
Closed first opening, first opening is for filling the first two-fluid working medium；The second circulation pipeline is equipped with
Closed second opening, second opening is for filling the second two-fluid working medium.
9. organic Rankine cycle power generation system according to claim 4, which is characterized in that first transfer tube and described
Second transfer tube is electromagnetic pump, mechanical pump or electrowetting pump.
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| WO2019218163A1 (en) | 2018-05-15 | 2019-11-21 | 南方科技大学 | Liquid metal-based dynamic isotope battery |
| CN108648847B (en) * | 2018-05-15 | 2020-08-04 | 南方科技大学 | Dynamic isotope battery based on liquid metal |
| CN109162779A (en) * | 2018-09-05 | 2019-01-08 | 上海理工大学 | A kind of organic Rankine cycle power generation system |
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| CN202696508U (en) * | 2012-08-01 | 2013-01-23 | 田海金 | High-power concentrated solar power photo-thermal synthetic power generation system |
| CN105888994A (en) * | 2014-11-18 | 2016-08-24 | 张建城 | Light-gathering solar power storage generating device |
| CN205558983U (en) * | 2016-04-21 | 2016-09-07 | 长安大学 | Rankine cycle and liquid metal natural circulation integrated power production system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202696508U (en) * | 2012-08-01 | 2013-01-23 | 田海金 | High-power concentrated solar power photo-thermal synthetic power generation system |
| CN105888994A (en) * | 2014-11-18 | 2016-08-24 | 张建城 | Light-gathering solar power storage generating device |
| CN205558983U (en) * | 2016-04-21 | 2016-09-07 | 长安大学 | Rankine cycle and liquid metal natural circulation integrated power production system |
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