CN208534696U - Photon-enhanced thermionic emission and carbon dioxide cycle combined power generation device - Google Patents
Photon-enhanced thermionic emission and carbon dioxide cycle combined power generation device Download PDFInfo
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- CN208534696U CN208534696U CN201821107196.4U CN201821107196U CN208534696U CN 208534696 U CN208534696 U CN 208534696U CN 201821107196 U CN201821107196 U CN 201821107196U CN 208534696 U CN208534696 U CN 208534696U
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- carbon dioxide
- thermionic emission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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Abstract
The utility model provides a kind of photon enhancing thermionic emission and carbon dioxide recycle combined power generation device, condenser, receiver including sunlight, receiver is connect with photon enhancing thermionic emission module group, photon enhances thermionic emission module group and connects cooling circuit, it is connected by circulation through Intermediate Heat Exchanger and supercritical carbon dioxide, supercritical carbon dioxide circulation includes: compressor, cryogenic regenerator, high temperature regenerator, turbine, generator, forecooler.Solar energy first passes through photon enhancing thermionic emission module, and part energy is converted to electric energy, remaining energy passes to supercritical carbon dioxide circulation in the form of anode waste heat, constitutes combined cycle system.Combined power generation device provided by the utility model reduces to Environment release thermal loss, and the whole generating efficiency of combined cycle system is high, compact-sized, has wide range of applications.
Description
Technical field
The utility model relates to a kind of photon enhancing thermionic emissions and supercritical carbon dioxide to recycle combined power generation device,
Belong to solar energy generation technology field.
Background technique
Solar energy is inexhaustible, nexhaustible green energy resource, and solar energy thermal-power-generating is the main side of Solar use
One of formula.In recent years, the development of this technology is very rapid, and more mature technology includes slot type, tower, Fresnel, dish-style
Equal solar energy light gathering and heat collectings generation technology.Solar heat transfers heat to power cycle system by intermediate medium and heat exchanger
System, such as: thermal energy is electric energy by steam turbine generator group, Stirling engine.
Since the running temperature grade of the current driving force circulatory system is not high, energy conversion efficiency is relatively low, solar heat
It generates electricity unobvious relative to the competitiveness advantage of photovoltaic power generation.On the one hand, need to develop the power circulation system of higher efficiency, mesh
Preceding mainstream R&D direction is supercritical carbon dioxide circulation, while making great efforts to improve the temperature parameter of circulation；On the other hand, it introduces new
The energy conversion regime of type, constantly exploration new breakthrough point, especially novel thermoelectric converter, such as: thermionic emission device,
Cathode is run at high temperature, and the waste heat for the higher temperature that anode generates can continue as bottoming cycle and provide heat.
In recent years, just enhance the solar energy generation technology of thermionic emission effect based on photon in extensive exploitation both at home and abroad,
And anode cogeneration is combined, solar combined power generating device is constituted, the efficiency of solar power generation can be greatly improved.However, base
Cogeneration system is constituted in how the solar energy generation technology of photon enhancing thermionic emission effect matches with advanced power cycle
The problem of system is current urgent need to resolve.
Utility model content
The technical problems to be solved in the utility model is the solar power generation skill based on photon enhancing thermionic emission effect
How art matches with advanced power cycle constitutes combined generating system, to improve the whole generating efficiency of combined generating system.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of photon enhancing thermionic emission
With carbon dioxide recycle combined power generation device, it is characterised in that: condenser and receiver including sunlight, condenser and reception
Device is oppositely arranged, and receiver is connect with photon enhancing thermionic emission module group；
The photon enhancing thermionic emission module group is divided into the first photon enhancing thermionic emission module group and the second light
Son enhancing two class of thermionic emission module group, the first photon enhance the corresponding temperature of anode of thermionic emission module group and are lower than second
Photon enhances the corresponding temperature of anode of thermionic emission module group；
The anode that first photon enhancing thermionic emission module group, the second photon enhance thermionic emission module group connects respectively
Connect the first cooler and the second cooler；The the first Intermediate Heat Exchanger heat transfer medium side-entrance of connection of first cooler outlet, first
Intermediate Heat Exchanger heat transfer medium side outlet connects first medium pump inlet, and first medium pump discharge connects the first cooler inlet,
Constitute the first cooling circuit；Second cooler outlet connects the second Intermediate Heat Exchanger heat transfer medium side-entrance, heat exchange among second
Device heat transfer medium side outlet connects second medium pump inlet, and second medium pump discharge connects the second cooler inlet, constitutes second
Cooling circuit；
First Intermediate Heat Exchanger carbon dioxide side, the second Intermediate Heat Exchanger carbon dioxide side and supercritical carbon dioxide recycle
The heat of heat transfer medium in first and second cooling circuit, is released to the dioxy of the supercritical carbon dioxide circulatory system by system connection
Change carbon working medium.
Preferably, the supercritical carbon dioxide circulatory system includes compressor, and compressor outlet is divided into two-way: connecting all the way
Cryogenic regenerator low temperature side-entrance is connect, another way is connect with the first Intermediate Heat Exchanger carbon dioxide side-entrance；Cryogenic regenerator is low
Warm side outlet and the first Intermediate Heat Exchanger carbon dioxide side outlet two-way connect the low temperature side-entrance of high temperature regenerator, high temperature after merging
Regenerator low temperature side outlet connects the second Intermediate Heat Exchanger carbon dioxide side-entrance, the second Intermediate Heat Exchanger carbon dioxide side outlet
Turbine import, turbine outlet connection high temperature regenerator high temperature side-entrance are connected, high temperature regenerator high temperature side outlet connects low temperature and returns
Hot device high temperature side-entrance, cryogenic regenerator high temperature side outlet connect forecooler import, and forecooler exports connect compressor import；Pressure
Contracting machine, turbine, generator coaxle connection.
Preferably, the condenser is dish-style condenser, tower condenser, Fresnel Lenses condenser.
Preferably, the receiver is the direct irradiation formula receiver of cavity body structure.
Preferably, the temperature of anode of the first photon enhancing thermionic emission module group is 150~300 DEG C；Described
The temperature of anode that two photons enhance thermionic emission module group is 500~700 DEG C.
Preferably, the heat transfer medium of first cooling circuit is conduction oil；The heat transfer medium of second cooling circuit
For low-melting-point metal liquid (such as alkali metal liquid) or fused salt.
Preferably, first cooler and the second cooler are equipped with extension radiating surface, such as: fin (item).
Preferably, first Intermediate Heat Exchanger and the second Intermediate Heat Exchanger are recuperator, and in described first
Between heat exchanger, the second Intermediate Heat Exchanger carbon dioxide side heat exchange wall surface be equipped with extension heat-transfer surface, for example, by using outer fin exchange heat
Pipe, outer pipe is carbon dioxide.
Preferably, the cryogenic regenerator and high temperature regenerator are compact heat exchanger.
Above-mentioned photon enhancing thermionic emission and carbon dioxide recycle combined power generation device use step are as follows: sunlight warp
Condenser focuses to receiver, and receiver, which heats the first photon enhancing thermionic emission module group and the second photon, enhances thermion
The cathode of transmitting module group, the electronics of emission of cathode reach anode through two clearance between poles and export electric energy from the two poles of the earth simultaneously, and first is cooling
Waste heat by anode cooling and is passed to heat transfer medium by device and the second cooler；
First medium pump and second medium pump are constantly defeated from the first cooler and the second cooler circulation by heat transfer medium
It send to the first Intermediate Heat Exchanger and the second Intermediate Heat Exchanger, heat transfer medium rejects heat to the supercritical carbon dioxide circulatory system
Carbon dioxide working medium；
In the supercritical carbon dioxide circulatory system, compressor compresses carbon dioxide working medium, the titanium dioxide of compressor outlet
Carbon working medium is divided into two-way: entering cryogenic regenerator all the way, another way enters the first Intermediate Heat Exchanger；Two-way carbon dioxide out
Working medium enters high temperature regenerator together, enters back into the second Intermediate Heat Exchanger and further heats, and enters back into turbine expansion acting, pushes
Generator produces electricl energy；Turbine exhaust sequentially enters high temperature regenerator and cryogenic regenerator, and partial heat is passed to titanium dioxide
After carbon working medium, then pre-cooled device is cooling, finally returns back to compressor.
Compared with prior art, photon enhancing thermionic emission and supercritical carbon dioxide circulation provided by the utility model join
Power generator is closed to have the following beneficial effects:
1, the anode waste heat of photon enhancing thermionic emission module passes to supercritical carbon dioxide circulation, reduces to ring
Border discharges thermal loss, and the whole generating efficiency of combined cycle system is high.
2, photon enhancing thermionic emission module is area-type power generator and power density is big, and generating efficiency is higher, is
A kind of device of solar generating of high-efficiency compact, and different temperature of anodes can be designed according to the characteristics of bottoming cycle.
3, supercritical carbon dioxide loop structure is compact, protects in biggish generated output span (hundred kW grades to hundred MW grades)
Hold high efficiency, the power generator of small compact both constituted with photon enhancing thermionic emission module, also constitute in, it is large-scale
Power generator meets different application demands.
Detailed description of the invention
Fig. 1 is that photon provided in this embodiment enhances thermionic emission and carbon dioxide recycle combined power generation device is illustrated
Figure；
Description of symbols:
1- condenser, 2- receiver, the first photon of 3- enhance thermionic emission module group, the first cooler of 4-, 5- first
Intermediate Heat Exchanger, 6- first medium pump, the second photon of 7- enhancing thermionic emission module group, the second cooler of 8-, in 9- second
Between heat exchanger, 10- second medium pump, 11- compressor, 12- cryogenic regenerator, 13- high temperature regenerator, 14- turbine, 15- power generation
Machine, 16- forecooler.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.
Fig. 1 is that photon provided in this embodiment enhances thermionic emission and carbon dioxide recycle combined power generation device is illustrated
Figure, the photon enhancing thermionic emission and carbon dioxide recycle combined power generation device include the condenser 1 of sunlight, receive
Device 2, condenser 1 are oppositely arranged with receiver 2, and receiver 2 enhances thermionic emission module group with the photon comprising multiple modules
Connection.In the present embodiment, photon enhancing thermionic emission module group is divided into the first photon enhancing thermionic emission module group 3 and the
Two photons enhance 7 liang of classes of thermionic emission module group, and corresponding anode has low temperature and two kinds of high temperature (low temperature and high temperature herein
For relative concept, in the present embodiment, the first photon enhances the corresponding temperature of anode of thermionic emission module group 3 and is lower than the second photon
Enhance the corresponding temperature of anode of thermionic emission module group 7).
Low temperature and anodic are separately connected the first cooler 4 and the second cooler 8.First cooler 4 outlet connection the
One Intermediate Heat Exchanger, 5 heat transfer medium side-entrance, 5 heat transfer medium side outlet of the first Intermediate Heat Exchanger connect first medium and pump 6 imports,
6 outlet connection 4 import of the first cooler of first medium pump, constitutes the first cooling circuit.In second cooler 8 outlet connection second
Between 9 heat transfer medium side-entrance of heat exchanger, 9 heat transfer medium side outlet of the second Intermediate Heat Exchanger connects second medium and pumps 10 imports, the
10 outlet connection 8 import of the second cooler of second medium pump, constitutes the second cooling circuit.
First Intermediate Heat Exchanger 5, the second Intermediate Heat Exchanger 9 are connect with the supercritical carbon dioxide circulatory system.Overcritical two
The carbonoxide circulatory system includes: compressor 11, and the outlet of compressor 11 is divided into two-way, connect all the way 12 low temperature side of cryogenic regenerator into
Mouthful, another way is connect with the 5 carbon dioxide side-entrance of the first Intermediate Heat Exchanger；Among 12 low temperature side outlet of cryogenic regenerator and first
5 carbon dioxide side outlet two-way of heat exchanger connects the 13 low temperature side-entrance of high temperature regenerator, 13 low temperature side of high temperature regenerator after merging
Outlet connection 9 carbon dioxide side-entrance of the second Intermediate Heat Exchanger, 9 carbon dioxide side outlet of the second Intermediate Heat Exchanger connect turbine 14
Import, the outlet of turbine 14 connection 13 high temperature side-entrance of high temperature regenerator, 13 high temperature side outlet of high temperature regenerator connect low temperature backheat
12 high temperature side-entrance of device, 12 high temperature side outlet of cryogenic regenerator connect 16 import of forecooler, and forecooler 16 exports connect compressor
11 imports；Compressor 11, turbine 14, generator 15 are coaxially connected.
Each equipment of the power generator of integrated Alkali metal thermoelectric converter and carbon dioxide recycle provided in this embodiment
Between connected by pipeline, needs are controlled according to system, can also arrange the equipment such as valve, instrument on pipeline.It can also be wrapped in system
Include auxiliary equipment, electrical system, control system etc..
The tool of photon enhancing thermionic emission provided in this embodiment and supercritical carbon dioxide circulation combined power generation device
Body implementation steps are as follows:
Sunlight focuses to receiver 2 through condenser 1, and receiver 2, which heats the first photon, enhances thermionic emission module group 3
With the cathode of the second photon enhancing thermionic emission module group 7, the electronics of emission of cathode through two clearance between poles reach anode simultaneously from
The two poles of the earth export electric energy, the first cooler 4 and the second cooler 8 for anode cooling and waste heat are passed to heat transfer medium.First is cold
But the heat transfer medium of device 4 be conduction oil, about 200 DEG C of temperature.The heat transfer medium of second cooler 8 is sodium molten metal, temperature
About 600 DEG C.First medium pump 6 and second medium pump 10 constantly follow heat transfer medium from the first cooler 4 and the second cooler 8
Ring is delivered to the first Intermediate Heat Exchanger 5 and the second Intermediate Heat Exchanger 9, and heat transfer medium rejects heat to supercritical carbon dioxide and follows
The working medium of loop system.
Carbon dioxide working medium is compressed to 25MPa by compressor 11, and the carbon dioxide working medium that compressor 11 exports is divided into two-way,
Enter cryogenic regenerator 12 all the way, another way enters the first Intermediate Heat Exchanger 5, and two-way carbon dioxide Temperature of Working out reaches
About 180 DEG C, then enter high temperature regenerator 13 together, enters back into the second Intermediate Heat Exchanger 9 and be further heated to about 580 DEG C, then
Into 14 expansion work of turbine, pushing generator 15 is produced electricl energy.The exhaust of turbine 14 enters high temperature regenerator 13 and low temperature backheat
Device 12, after partial heat is passed to carbon dioxide working medium, then pre-cooled device 16 is cooled near room temperature, finally returns back to compress
Machine 11.
It can estimate to obtain by above-mentioned parameter, photon enhances thermionic emission and supercritical carbon dioxide circulation cogeneration dress
The solar power generation peak efficiencies set are up to 45% or more.Heat accumulation facility can also be arranged in above system, in no sunlight or
Sunlight can be continuously supercritical carbon dioxide circulation and provide heat input when weaker.
Although it should be understood that herein may usage amount term " first ", " second " etc. each unit is described,
But these units should not be limited by these terms.The use of these items is only for by a unit and another unit
It distinguishes.For example, without departing substantially from the range of exemplary embodiment, it is single that first unit can be referred to as second
Member, and similarly second unit can be referred to as first unit.
The above, the only preferred embodiment of the utility model, it is in any form and substantive not to the utility model
On limitation, it is noted that for those skilled in the art, in the premise for not departing from the utility model method
Under, several improvement and supplement can be also made, these are improved and supplement also should be regarded as the protection scope of the utility model.It is all ripe
Professional and technical personnel is known, in the case where not departing from the spirit and scope of the utility model, when using disclosed above
Technology contents and the equivalent variations of a little variation, modification and evolution made, be the equivalent embodiment of the utility model；Together
When, all substantial technologicals according to the utility model to the variation, modification and evolution of any equivalent variations made by above-described embodiment,
In the range of still falling within the technical solution of the utility model.
Claims (10)
1. a kind of photon enhancing thermionic emission and carbon dioxide recycle combined power generation device, it is characterised in that: including sunlight
Condenser (1) and receiver (2), condenser (1) is oppositely arranged with receiver (2), and receiver (2) and photon enhance thermion
The connection of transmitting module group；
The photon enhancing thermionic emission module group is divided into the first photon enhancing thermionic emission module group (3) and the second photon
Enhance (7) two class of thermionic emission module group, the corresponding temperature of anode of the first photon enhancing thermionic emission module group (3) is lower than
Second photon enhances thermionic emission module group (7) corresponding temperature of anode；
First photon enhances the anode difference of thermionic emission module group (3), the second photon enhancing thermionic emission module group (7)
Connect the first cooler (4) and the second cooler (8)；First cooler (4) outlet connection the first Intermediate Heat Exchanger (5) heat transfer is situated between
Matter side-entrance, the first Intermediate Heat Exchanger (5) heat transfer medium side outlet connect first medium and pump (6) import, and first medium pumps (6) and goes out
Mouth connection the first cooler (4) import, constitutes the first cooling circuit；The second Intermediate Heat Exchanger of second cooler (8) outlet connection
(9) heat transfer medium side-entrance, connection second medium pump (10) import of the second Intermediate Heat Exchanger (9) heat transfer medium side outlet, second
Medium pump (10) outlet connection the second cooler (8) import, constitutes the second cooling circuit；
First Intermediate Heat Exchanger (5) carbon dioxide side, the second Intermediate Heat Exchanger (9) carbon dioxide side and supercritical carbon dioxide follow
Loop system connection.
2. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the supercritical carbon dioxide circulatory system includes compressor (11), and compressor (11) outlet is divided into two-way: connecting all the way
Cryogenic regenerator (12) low temperature side-entrance is connect, another way is connect with the first Intermediate Heat Exchanger (5) carbon dioxide side-entrance；Low temperature returns
Hot device (12) low temperature side outlet and the first Intermediate Heat Exchanger (5) carbon dioxide side outlet two-way connect high temperature regenerator after merging
(13) low temperature side-entrance, high temperature regenerator (13) low temperature side outlet connect the second Intermediate Heat Exchanger (9) carbon dioxide side-entrance, the
Two Intermediate Heat Exchangers (9) carbon dioxide side outlet connects turbine (14) import, turbine (14) outlet connection high temperature regenerator (13)
High temperature side-entrance, high temperature regenerator (13) high temperature side outlet connect cryogenic regenerator (12) high temperature side-entrance, cryogenic regenerator
(12) high temperature side outlet connects forecooler (16) import, and forecooler (16) exports connect compressor (11) import；Compressor (11),
Turbine (14), generator (15) are coaxially connected.
3. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the condenser (1) is dish-style condenser, tower condenser or Fresnel Lenses condenser.
4. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the receiver is the direct irradiation formula receiver of cavity body structure.
5. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the temperature of anode of the first photon enhancing thermionic emission module group (3) is 150~300 DEG C；Second photon
The temperature of anode for enhancing thermionic emission module group (7) is 500~700 DEG C.
6. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the heat transfer medium of first cooling circuit is conduction oil.
7. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the heat transfer medium of second cooling circuit is alkali metal liquid or fused salt.
8. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: first cooler (4) and the second cooler (8) are equipped with extension radiating surface.
9. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: first Intermediate Heat Exchanger (5) and the second Intermediate Heat Exchanger (9) are recuperator, and among described first
Heat exchanger (5), the second Intermediate Heat Exchanger (9) carbon dioxide side heat exchange wall surface be equipped with extension heat-transfer surface.
10. a kind of photon enhancing thermionic emission as described in claim 1 and carbon dioxide recycle combined power generation device, special
Sign is: the cryogenic regenerator (12) and high temperature regenerator (13) are compact heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821107196.4U CN208534696U (en) | 2018-07-12 | 2018-07-12 | Photon-enhanced thermionic emission and carbon dioxide cycle combined power generation device |
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| CN201821107196.4U CN208534696U (en) | 2018-07-12 | 2018-07-12 | Photon-enhanced thermionic emission and carbon dioxide cycle combined power generation device |
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| CN208534696U true CN208534696U (en) | 2019-02-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869213A (en) * | 2018-07-12 | 2018-11-23 | 上海发电设备成套设计研究院有限责任公司 | Photon enhances thermionic emission and carbon dioxide recycle combined power generation device and method |
-
2018
- 2018-07-12 CN CN201821107196.4U patent/CN208534696U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869213A (en) * | 2018-07-12 | 2018-11-23 | 上海发电设备成套设计研究院有限责任公司 | Photon enhances thermionic emission and carbon dioxide recycle combined power generation device and method |
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