CN106761988B - A kind of list expanding machine realizes thermal energy step timesharing organic Rankine cycle devices and method - Google Patents
A kind of list expanding machine realizes thermal energy step timesharing organic Rankine cycle devices and method Download PDFInfo
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- CN106761988B CN106761988B CN201710056180.9A CN201710056180A CN106761988B CN 106761988 B CN106761988 B CN 106761988B CN 201710056180 A CN201710056180 A CN 201710056180A CN 106761988 B CN106761988 B CN 106761988B
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- heat
- pipelines
- expanding machine
- organic rankine
- rankine cycle
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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
- Y02E10/10—Geothermal energy
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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
Abstract
The invention discloses a kind of single expanding machine to realize thermal energy step timesharing organic Rankine cycle devices and method, organic rankine cycle system includes sequentially connected working medium pump (1), the B ends of No.1 controller (2), heat exchanger (3), No. two controllers (10), expanding machine (13), thermal storage device (9), the closed loop that the C-terminal of No.1 controller (2) is formed, with sequentially connected No. four controllers (8) of outlet by heat exchanger (3), condenser (6), condensation cycle pumps (5), No. three controllers (4), the closed loop that the inlet side of heat exchanger (3) is formed；The subsystem includes other source heat heat removal systems (11), heating system (12), domestic water pre-heating system (7)；The device can also be arranged as required to multiple and different temperature thermal storage devices, to realize the multiple cascade utilization to heat source；Exterior middle-low grade heat source can be stored at the same time and avoid wasting；Meet the needs for taking heat at any time at the same time.
Description
Technical field
The present invention relates to a kind of single expanding machine to realize thermal energy step timesharing organic Rankine cycle devices, belongs to energy and environment
Technical field.
Background technology
With being continuously increased for the fossil energy consumptions such as coal, oil, natural gas, and the ring brought due to energy consumption
(such as CO2 emission) is born in border, and energy and environment problem has become the significant problem that the whole world is paid close attention to jointly.Herein
Under background, tow taste heat is converted into electric energy using organic Rankine bottoming cycle causes and carry out more concerns.So-called organic Rankine follows
Ring, i.e., replace water to promote expanding machine acting as working medium in traditional rankine cycle using organic working medium (such as R113, R123 etc.).
As development in science and technology and the continuous of energy prices rise, residual heat resources grade is improved what is recycled
Mode, particularly by the low grade heat energy resource produced in industrial process conversion for convenience of, flexible electric energy way of recycling by
To extensive concern.Requirement more low advantage of the organic rankine cycle system with its good mobility and for maintaining,
It is integrated into energy resource system power generation, it is possible to achieve provide high-grade energy (electric energy) with low-grade energy (waste heat), mitigate electricity
Power is born, and improves total generating efficiency and generated energy.Under conditions of identical output, reduce the row of the pollutants such as carbon dioxide
Put, be conducive to environmental protection.ORC (organic Rankine cycle) low-temperature cogeneration technology is effectively to solve a large amount of cryogenic waste heat resource recoveries
Problem provides selection.
Some energy supplies are provided compared with GOOD TASTE heat by time effects, a period of time interior energy in reality, and a period of time
Without heat energy source, such as solar energy, some factory's waste heat, organic Rankine bottoming cycle cannot continue externally to provide electric energy in this case.
The content of the invention
Technical problem：The technical problems to be solved by the invention are to overcome the deficiencies of the prior art and provide a kind of list swollen
Swollen machine realizes thermal energy step timesharing organic Rankine cycle devices, it can be achieved that in heat source continuous externally confession in the case of by time restriction
Electricity, while meet other the needs of using heat and domestic hot-water.
Technical solution：It is of the invention that technical problem is specifically solved using following technical scheme：
A kind of single expanding machine of the present invention realizes that thermal energy step timesharing utilizes organic Rankine cycle devices, including organic Rankine
The circulatory system and subsystem, organic rankine cycle system include sequentially connected working medium pump, the B ends of No.1 controller, heat exchange
The closed loop that device, No. two controllers, expanding machine, thermal storage device, the C-terminal of No.1 controller are formed, and the outlet by heat exchanger
Form one of sequentially connected No. four controllers, condenser, condensation cycle pump, the inlet side of No. three controllers, heat exchanger closes and follows
Ring；
The subsystem includes other source heat heat removal systems, heating system, domestic water pre-heating system；Its
In, other source heat heat removal systems, the both ends of heating system connect the both ends of thermal storage device respectively, and the two of domestic water pre-heating system
End connects the both ends of condenser respectively.
Thermal storage device is the tun of built-in phase-change thermal storage medium, and one to three set heat exchanger tubes are arranged as required to inside it
Road, is connected with organic rankine cycle system, other source heat heat reservoirs, heating system respectively.
Single expanding machine of the present invention realizes that thermal energy step timesharing is using the round-robin method of organic Rankine cycle devices：When adopting
During with external heat source heat supply, organic working medium is transported in heat exchanger after working medium pump boosts, more than being gone out by k pipelines into i pipelines
After hot-fluid heat exchange, into expanding machine, after driving expanding machine acting, enter working medium pump completion circulation 1 after heat release into thermal storage device；
When not using external heat source heat supply, organic working medium is transported to after working medium pump boosts in thermal storage device after heat absorption, into expanding machine
After driving expanding machine acting, after carrying out solar heat protection with the condensation working medium heat exchange gone out by j pipelines into k pipelines into heat exchanger, into work
Matter pump completes circulation 2；Other systems include other source heat heat reservoirs, heating system, night domestic water system.
When using external heat source heat supply using circulation 1, the No.1 controller can realize that its a pipeline joins with b pipelines
Lead to, c pipelines and d pipeline unicom, h pipelines and the e pipeline unicom of No. two controllers, g pipelines and f pipeline unicom, No. three controller i
Pipeline path, j pipelines closure, No. four controller k pipeline paths, l pipelines closure.
When not using external heat source heat supply using circulation 2, the No.1 controller can realize its d pipeline and b pipelines
Unicom, c pipelines and a pipeline unicom, No. two controller g pipelines and e pipeline unicom, h pipelines and f pipeline unicom, No. three controller j
Pipeline path, i pipelines closure, No. four controller l pipeline paths, k pipelines closure.
When not using external heat source heat supply using circulation 2, condensation cycle pump, condenser, heat exchanger composition condensing circuit are cold
Solidifying circuit connects heating domestic water by condenser with extraneous domestic water pre-heating system, may serve as floor heating, life is used
The heat source of water etc..
When there is exterior other low-grade heat sources, by other source heat heat reservoirs, directly by heat high-quality
Part is stored in thermal storage device by heat exchange, is left more tow taste heat as life heat；When the external world exist need with storage
During hot device middle-low grade heat source similar temperature heat, can directly using thermal storage device as heat source by heating system to extraneous heat supply,
For such as absorption, adsorption type air-conditioning system heat source.
Beneficial effect：In the case of being changed over time for external heat source, single expander organic Rankine cycle system can be used
Realize continuous supplying power for outside, and efficiency is improved to energy cascade utilization, need hot systems to carry out in the external world at the same time as heat source
Heat supply.
Brief description of the drawings
Fig. 1 is that a kind of single expanding machine of the present invention realizes the structure for the organic Rankine cycle devices that thermal energy step timesharing utilizes
Schematic diagram.
Wherein Symbol explanation：1- working medium pumps, 2- No.1 controllers, 3- heat exchangers, No. tri- controllers of 4-, 5- condensation cycles
Pump, 6- condensers, 7- domestic water pre-heating systems, No. tetra- controllers of 8-, 9- thermal storage devices, No. bis- controllers of 10-, 11- are other next
Source heat heat removal system, 12- heating systems, 13- expanding machines.
Embodiment
A kind of single expanding machine of the present invention realizes that thermal energy step timesharing utilizes organic Rankine cycle devices, including organic Rankine
The circulatory system and subsystem.Organic rankine cycle system is by being sequentially connected and forming the working medium pump, heat exchanger, expansion of circulation
Machine, thermal storage device and condensing circuit system.System uses some controllers to realize when using external heat source heat supply, system hair
Electricity plus heat accumulation；During without external heat source heat supply, controller switching circuit, realizes that the heat for storing up daytime is used with realization with same system
To generate electricity and for other purposes.
When system uses the circulation 1 of external heat source heat supply, No.1 controller is switched to a pipelines and b pipeline unicom, c pipes
Road and d pipeline unicom, No. two controllers are switched to h pipelines and e pipeline unicom, and f pipelines and g pipeline unicom, No. three controllers are cut
I pipeline unicom, j pipelines closure are changed to, No. four controllers are switched to k pipeline unicom, l pipelines closure, to realize working medium through working medium
After pump boosting after heat exchanger heat absorption is done work to expanding machine, into heat storage can heat release, enter back into working medium pump and complete circulation 1.
When circulation 2 of the system for no external heat source heat supply, No.1 controller is switched to a pipelines and c pipeline unicom, b pipes
Road and d pipeline unicom, No. two controllers are switched to g pipelines and e pipeline unicom, and f pipelines and h pipeline unicom, No. three controllers are cut
J pipeline unicom, i pipelines closure are changed to, No. four controllers are switched to l pipeline unicom, k pipelines closure, to realize working medium through working medium
After pump boosting after thermal storage device heat absorption flows to expanding machine acting, into heat exchanger heat release, enter back into working medium pump and complete circulation 2.
, can be by domestic water pre-heating system when system is circulates 2 operating mode, using heat exchange mode, heat exchanging device carries out cold
It is solidifying, while domestic water is preheated.
System thermal storage device can be as system heat supply of the heat source to outside need tow taste heat, such as absorption or absorption type
Air-conditioning system.
When the external world is there are during other available low-grade heat sources, heat can be stored in thermal storage device by heat exchanging pipe, with
Used for follow-up.
When external heat source taste is higher, system can set thermal storage device under several different temperatures at the same time, using external heat source
Organic rankine cycle system is worked between heat exchanger and the highest temperature thermal storage device during heat supply, organic bright when not using external heat source heat supply
Agree circulatory system primary and secondary to work between the highest temperature and secondary high temperature storage, to realize the cascade utilization of energy.
Heretofore described external heat source is the cryogenic waste heat resources such as industrial waste heat, solar energy or underground heat, will be low-grade
Waste heat be converted into the electric energy of high-quality, realize the efficient utilization of waste heat, avoid dirty caused by waste heat discharge is environment
Dye, meets needs of the life to heat and electricity.
The embodiment of the present invention is described with reference to Figure of description.
A kind of list expanding machine realizes thermal energy step timesharing organic Rankine cycle devices, its structure as shown in Figure 1, working medium pump 1,
Heat exchanger 3, expanding machine 13, thermal storage device 9 form organic Rankine bottoming cycle main circulation loop, condensation cycle pump 5, condenser 6, heat exchanger
3 composition condensing circuits.
No.1 controller 2 has four pipe interfaces, and two of which interface a, b connect working medium pump both ends, and interface c connects thermal storage device,
Interface d connects heat exchanger；No. two controllers 10 have four pipe interfaces, and wherein interface e connects expander inlet end, and interface f connects expansion
The machine port of export, interface g connect the thermal storage device other end, and interface h connects the heat exchanger other end；No. three controllers 4 and No. four control controllers 8
There are three interfaces respectively, wherein main interface connects the both ends of heat exchanger respectively, the i interfaces of No. three controllers and the k of No. four controllers
The pipeline that interface connects exterior hot-fluid respectively forms a circulation loop, and the j interfaces of No. three heat exchangers connect condensation cycle pump discharge end,
No. four controller l interfaces connect one end composition condensing circuit of condenser.
Domestic water pre-heating system 7 exchanges heat with condenser 6, there is provided hot water is used in life, floor heating etc..
One to three heat exchanging pipes can be set as needed in thermal storage device 9, and one of heat exchanging pipe is respectively at No.1 control
The g interfaces connection of No. two controllers of c interfaces of device processed, second heat exchanging pipe are connected with exterior other available heat sources systems, the
Three heat exchanging pipes are connected with heating system pipeline.
A kind of single expanding machine of the present invention realizes that thermal energy step timesharing is former using the work of organic Rankine cycle devices
Reason is as follows：
1) when using external heat source heat supply, No.1 controller is switched to a pipelines and b pipeline unicom, c pipelines and d pipelines
Unicom, No. two controllers are switched to h pipelines and e pipeline unicom, and f pipelines and g pipeline unicom, No. three controllers are switched to i pipelines
Unicom, j pipelines closure, No. four controllers are switched to k pipeline unicom, l pipelines closure, to realize that working medium passes through after working medium pump boosts
After heat exchanger heat absorption is done work to expanding machine, into thermal storage device heat release, enter back into working medium pump and complete circulation 1.
2) when not using external heat source, No.1 controller is switched to a pipelines and c pipeline unicom, and b pipelines join with d pipelines
Logical, No. two controllers are switched to g pipelines and e pipeline unicom, f pipelines and h pipeline unicom, and No. three controllers are switched to j pipelines connection
Logical, i pipelines closure, No. four controllers are switched to l pipeline unicom, k pipelines closure, to realize working medium after working medium pump boosts through storage
After hot device heat absorption flows to expanding machine acting, into heat exchanger heat release, enter back into working medium pump and complete circulation 2 at night.
3) domestic water obtains hot water for life by exchanging heat with condenser (6) in evening domestic water system.
4), can be by other source heat storage systems and thermal storage device (9) when there is available low-grade heat source in outside
Heat exchanging pipe unicom exchanges heat, and stores heat.
5) when heat-storage medium similar temperature heat source in outside need and thermal storage device, then heating system and thermal storage device 9 are passed through
In heat exchanging pipe unicom exchange heat, to outside carry out heat supply.
When external heat source taste is higher, system can set thermal storage device under several different temperatures at the same time, when using exterior heat
Organic rankine cycle system is worked between heat exchanger and the highest temperature thermal storage device during circulation 1 of source heat supply, evening organic Rankine bottoming cycle
System works between the highest temperature and secondary high temperature reservoir successively, to realize the cascade utilization of energy.
Claims (7)
1. a kind of list expanding machine realizes that thermal energy step timesharing utilize organic Rankine cycle devices, including organic rankine cycle system with
Subsystem, it is characterised in that：Organic rankine cycle system includes sequentially connected working medium pump (1), the B of No.1 controller (2)
End, heat exchanger (3), No. two controllers (10), expanding machine (13), thermal storage device (9), No.1 controller (2) C-terminal form one
Closed loop, and by sequentially connected No. four controllers (8) of outlet of heat exchanger (3), condenser (6), condensation cycle pump (5), three
The closed loop that number controller (4), the inlet side of heat exchanger (3) are formed；
The subsystem includes other source heat heat reservoirs (11), heating system (12), domestic water pre-heating system
(7)；Wherein, other source heat heat reservoirs (11), the both ends of heating system (12) connect the both ends of thermal storage device (9) respectively, raw
The both ends for applying flexibly water pre-heating system (7) connect the both ends of condenser (6) respectively.
2. a kind of single expanding machine according to claim 1 realizes that thermal energy step timesharing utilizes organic Rankine cycle devices, its
It is characterized in that, thermal storage device (9) is the tun of built-in phase-change thermal storage medium, and at least three sets are arranged as required to inside it and is exchanged heat
Pipeline, is connected with organic rankine cycle system, other source heat heat reservoirs, heating system respectively.
3. a kind of single expanding machine as claimed in claim 1 realizes that thermal energy step timesharing utilizes the circulation of organic Rankine cycle devices
Method, it is characterised in that when using external heat source heat supply, organic working medium is transported to heat exchanger after working medium pump (1) boosting
(3) in, after being exchanged heat by k pipelines into the residual heat stream that i pipelines go out, into expanding machine (13), after driving expanding machine acting, into storage
Enter working medium pump (1) in hot device (9) after heat release and complete circulation one；When not using external heat source heat supply, organic working medium is through working medium
It is transported to after pump (1) boosting in thermal storage device (9) after heat absorption, into after expanding machine (13) driving expanding machine acting, into heat exchanger
(3) after and carrying out heat release into the condensation working medium heat exchange that l pipelines go out by j pipelines, circulation two is completed into working medium pump (1).
4. list expanding machine according to claim 3 realizes that thermal energy step timesharing utilizes the circulation side of organic Rankine cycle devices
Method, it is characterised in that when, using circulating for the moment, the No.1 controller (2) can realize its a pipeline using external heat source heat supply
With b pipeline unicom, c pipelines and d pipeline unicom, h pipelines and the e pipeline unicom of No. two controllers (10), g pipelines and f pipelines join
It is logical, No. three controller (4) i pipeline paths, j pipelines closure, No. four controller (8) k pipeline paths, l pipelines closure.
5. list expanding machine according to claim 3 realizes that thermal energy step timesharing utilizes the circulation side of organic Rankine cycle devices
Method, it is characterised in that when not using external heat source heat supply using circulation two, the No.1 controller (2) can realize that its d is managed
Road and b pipeline unicom, c pipelines and a pipeline unicom, No. two controller (10) g pipelines and e pipeline unicom, h pipelines join with f pipelines
It is logical, No. three controller (4) j pipeline paths, i pipelines closure, No. four controller (8) l pipeline paths, k pipelines closure.
6. list expanding machine according to claim 3 realizes that thermal energy step timesharing utilizes the circulation side of organic Rankine cycle devices
Method, it is characterised in that when not using external heat source heat supply using circulation two, condensation cycle pump (5), condenser (6), heat exchanger
(3) condensing circuit is formed, condensing circuit connects heating domestic water by condenser (6) with extraneous domestic water pre-heating system,
Heat source as domestic water.
7. list expanding machine according to claim 3 realizes that thermal energy step timesharing utilizes the circulation side of organic Rankine cycle devices
Method, it is characterised in that when there is exterior other low-grade heat sources, by other source heat heat reservoirs (11), directly will
Heat high-quality part is stored in thermal storage device (9) by heat exchange, is left more tow taste heat as life heat；When the external world deposits
When needing with thermal storage device middle-low grade heat source similar temperature heat, heat supply directly can be passed through using thermal storage device (9) as heat source
System (12) is to extraneous heat supply, for absorption, adsorption type air-conditioning system heat source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056180.9A CN106761988B (en) | 2017-01-25 | 2017-01-25 | A kind of list expanding machine realizes thermal energy step timesharing organic Rankine cycle devices and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710056180.9A CN106761988B (en) | 2017-01-25 | 2017-01-25 | A kind of list expanding machine realizes thermal energy step timesharing organic Rankine cycle devices and method |
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| CN106761988B true CN106761988B (en) | 2018-04-24 |
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| CN109539570A (en) * | 2018-10-23 | 2019-03-29 | 东南大学 | A kind of solar thermal electric combined supply sewage-treatment plant of suitable highlands |
| CN111734509B (en) * | 2020-06-23 | 2021-02-12 | 浙江大学 | Organic Rankine cycle waste heat recovery system for slowing down heat source fluctuation and control method |
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| JP4375171B2 (en) * | 2004-08-31 | 2009-12-02 | ダイキン工業株式会社 | Refrigeration equipment |
| CN103776192A (en) * | 2014-02-24 | 2014-05-07 | 梁兆福 | Low-temperature waste heat power generation device |
| CN104033199B (en) * | 2014-06-24 | 2015-08-12 | 天津大学 | A kind of organic rankine cycle system using the built-in heat pump of mixing organic working medium |
| CN104481615B (en) * | 2014-11-25 | 2016-03-02 | 上海交通大学 | A kind of organic working medium electricity generating device utilizing low grade heat energy to drive |
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Address after: 210093 Nanjing University Science Park, 22 Hankou Road, Gulou District, Nanjing City, Jiangsu Province Patentee after: Southeast University Address before: 211189 No. 2 Southeast University Road, Jiangning District, Nanjing, Jiangsu Patentee before: Southeast University |