CN103775145A - Organic Rankine circulating system with double-ejector supercharging device - Google Patents

Organic Rankine circulating system with double-ejector supercharging device Download PDF

Info

Publication number
CN103775145A
CN103775145A CN201410017962.8A CN201410017962A CN103775145A CN 103775145 A CN103775145 A CN 103775145A CN 201410017962 A CN201410017962 A CN 201410017962A CN 103775145 A CN103775145 A CN 103775145A
Authority
CN
China
Prior art keywords
outlet
level
ejector
order
working medium
Prior art date
Application number
CN201410017962.8A
Other languages
Chinese (zh)
Inventor
李敏霞
党超镔
孙志利
马一太
Original Assignee
天津大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 天津大学 filed Critical 天津大学
Priority to CN201410017962.8A priority Critical patent/CN103775145A/en
Publication of CN103775145A publication Critical patent/CN103775145A/en

Links

Abstract

The invention discloses an organic rankine circulating system with a double-ejector supercharging device. The organic rankine circulating system comprises an evaporator, a primary expanding machine, a primary ejector, an intermediate heat exchanger, a secondary expanding machine, a secondary ejector, a secondary heat return device, a condenser, a primary heat return device and a work medium pump. The ejectors are applied to the organic rankine circulation, after the intermediate gas of the expanding machine passes through the ejectors, the intermediate gas is used for ejecting the low-pressure condensed liquid work medium, the pump power input of the liquid work medium and the back pressure of the expanding machine can be reduced, under the condition that the same heat is inputted to the system, the pump power input is reduced, so that the output power of the organic rankine circulating system is increased, and the system efficiency can be improved.

Description

The organic rankine cycle system of the two injection supercharging devices of band
Technical field
The present invention relates to organic rankine cycle system, in particular, relate to a kind of with ejector lifting condensation power pressure, the electricity generating device of raising organic rankine cycle system efficiency.
Background technique
Adopt the organic Rankine circulation (ORC) of organic working medium place of water steam though can make the expanded range of utilizing of middle low-temperature heat source, but because the difference between temperature and the ambient temperature of middle low-temperature heat source is less, inflation process working pressure is poor little, therefore acting ability is low, energy conversion efficiency is low, has limited thus the applying of organic Rankine circulating generation of low-temperature heat source in using.
Circulate domestic and international many research institutions all in active research for the organic Rankine of middle low-temperature heat source.See technically, compare traditional refrigeration cycle, the Major Difficulties of the organic rankine cycle system of middle low-temperature heat source be to optimize vaporizer design, choose reasonable decompressor form, reduce the power consumpiton of working medium pump and according to cold & heat source temperature choose reasonable working medium.Certainly all difficult points can be summed up 2 points, the organic rankine cycle system efficiency of low-temperature heat source and reduction system cost in how improving.
In the organic rankine cycle system of the middle low-temperature heat source of routine, its critical piece is vaporizer, decompressor, condenser and working medium pump.Vaporizer and condenser are as heat exchanger components, and its optimal design work is carried out in a large number, and gradual perfection, repeats no more.For decompressor and working medium circulating pump, because its input cost is larger, the two is as the core component of system, exists respectively low and large two shortcomings of input work of efficiency.How to solve above-mentioned two shortcomings, improving system effectiveness and reducing working medium pump input work becomes the focus of research.On legacy system, carry out parts improvement and system and improve, as increased regenerator, all can not meet the demands essentially.
Summary of the invention
The technical problems such as the low and working medium pump input work of existing organic rankine cycle system efficiency that what the present invention will solve is is large, a kind of organic rankine cycle system with two injection supercharging devices is provided, can effectively utilize injection principle, reduce pump input work and reduce decompressor back pressure, by the reasonable utilization of ejector, improve the efficiency of whole organic rankine cycle system.
In order to solve the problems of the technologies described above, the present invention is achieved by following technological scheme:
With an organic rankine cycle system for two injection supercharging devices, comprise vaporizer, first order decompressor, first order ejector, Intermediate Heat Exchanger, second level decompressor, second level ejector, second level regenerator, condenser, first order regenerator and working medium pump;
The sender property outlet of described vaporizer is connected with the entrance of described first order decompressor, the middle high-pressure outlet of described first order decompressor is connected with the high pressure entry of described first order ejector, the low tension outlet of described first order decompressor is connected with the working medium entrance of described Intermediate Heat Exchanger, the sender property outlet of described Intermediate Heat Exchanger is connected with the entrance of described second level decompressor, the middle high-pressure outlet of described second level decompressor is connected with the high pressure entry of described second level ejector, the low tension outlet of described second level decompressor is connected with the working medium entrance of described condenser, the sender property outlet of described condenser is connected with the low pressure working fluid entrance of described second level regenerator, the low pressure working fluid outlet of described second level regenerator is connected with the low-pressure inlet of described second level ejector, the outlet of described second level ejector is connected with the high pressure stage working medium entrance of described second level regenerator, the high pressure stage sender property outlet of described second level regenerator is connected with the low pressure stage working medium entrance of described first order regenerator, the low pressure stage sender property outlet of described first order regenerator is connected with the low-pressure inlet of described first order ejector, the outlet of described first order ejector is connected with the high pressure stage working medium entrance of described first order regenerator, the high pressure stage sender property outlet of described first order regenerator is connected with the entrance of described working medium pump, described working medium delivery side of pump is connected with the working medium entrance of described vaporizer,
High temperature heat source is connected with the high temperature heat source entrance of described vaporizer, and the high temperature heat source outlet of described vaporizer is connected with the high temperature heat source entrance of described Intermediate Heat Exchanger, and the high temperature heat source outlet of described Intermediate Heat Exchanger is used for entering Heating Cyclic;
Low-temperature heat source is connected with the low-temperature heat source entrance of described condenser, and the low-temperature heat source outlet of described condenser is used for entering cool cycles.
In the present invention, ejector is applied in the organic Rankine circulation of middle low-temperature heat source, by middle drive of high-pressure gas ejector work, for the condensed fluid working medium of injection low pressure, reduce on the one hand outlet pressure of expansion machine, improve decompressor inlet outlet pressure differential, raise the efficiency, reduce on the other hand the input work of working medium pump by ejector injection low pressure working fluid, system is under the condition of the identical heat of input, the input of pump merit reduces, and the output work of organic rankine cycle system increases, and system effectiveness improves.The fundamentally low and large shortcoming of working medium pump input work of resolution system efficiency.
The invention has the beneficial effects as follows:
(1), in organic rankine cycle system of the present invention, the ejector action by ejector, for condensed fluid provides power, reduces the merit consumption of working medium circulating pump.
(2) in organic rankine cycle system of the present invention, utilize the ejector action of ejector to reduce decompressor back pressure, improve decompressor inlet outlet pressure differential, improve working medium workmanship ability and system effectiveness.
(3) in organic rankine cycle system of the present invention, ejector entrance working medium is decompressor central exit working medium, and Temperature of Working is relatively high, improves by the mixed Temperature of Working of ejector, has reduced the heat exchange amount of high temperature heat source.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the organic rankine cycle system of the two injection supercharging devices of band provided by the present invention.
In figure: 1: vaporizer; 2: first order decompressor; 3: first order ejector; 4: Intermediate Heat Exchanger; 5: second level decompressor; 6: second level ejector; 7: second level regenerator; 8: condenser; 9: first order regenerator; 10: working medium pump.
Embodiment
Below by specific embodiment, the present invention is described in further detail, and following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
As shown in drawings, the present embodiment has disclosed a kind of organic rankine cycle system with two injection supercharging devices, the sender property outlet of vaporizer 1 is connected with the entrance of first order decompressor 2, the middle high-pressure outlet of first order decompressor 2 is connected with the high pressure entry of first order ejector 3, the low tension outlet of first order decompressor 2 is connected with the working medium entrance of Intermediate Heat Exchanger 4, the sender property outlet of Intermediate Heat Exchanger 4 is connected with the entrance of second level decompressor 5, the middle high-pressure outlet of second level decompressor 5 is connected with the high pressure entry of second level ejector 6, the low tension outlet of second level decompressor 5 is connected with the working medium entrance of condenser 8, the sender property outlet of condenser 8 is connected with the low pressure working fluid entrance of second level regenerator 7, the low pressure working fluid outlet of second level regenerator 7 is connected with the low-pressure inlet of second level ejector 6, the outlet of second level ejector 6 is connected with the high pressure stage working medium entrance of second level regenerator 7, the high pressure stage sender property outlet of second level regenerator 7 is connected with the low pressure stage working medium entrance of first order regenerator 9, the low pressure stage sender property outlet of first order regenerator 9 is connected with the low-pressure inlet of first order ejector 3, the outlet of first order ejector 3 is connected with the high pressure stage working medium entrance of first order regenerator 9, the high pressure stage sender property outlet of first order regenerator 9 is connected with the entrance of working medium pump 10, the outlet of working medium pump 10 is connected with the working medium entrance of vaporizer 1, completion system working medium circulation.
High temperature heat source is connected with the high temperature heat source entrance of vaporizer 1, and the high temperature heat source outlet of vaporizer 1 is connected with the high temperature heat source entrance of Intermediate Heat Exchanger 4, and the high temperature heat source outlet of Intermediate Heat Exchanger 4 is used for entering Heating Cyclic, completes high temperature heat source heat exchange.
Low-temperature heat source is connected with the low-temperature heat source entrance of condenser 8, and the low-temperature heat source outlet of condenser 8 is used for entering cool cycles.
The working principle of the organic rankine cycle system of the two injection supercharging devices of band of the present embodiment is as follows:
High temperature heat source, for vaporizer 1 provides heat, makes to become high pressure-temperature gaseous working medium from working medium pump 10 high-pressure liquid working medium out.High pressure-temperature gas working medium enters first order decompressor 2 acting of expanding, outputting power, the middle high-pressure outlet of first order decompressor 2 provides driving fluid for first order ejector 3, again enter Intermediate Heat Exchanger 4 from first order decompressor 2 low tension outlets high-pressure working medium out, working medium in Intermediate Heat Exchanger 4 is heated again by the high temperature heat source after vaporizer 1 heat exchange, High Temperature High Pressure working medium after heating enters second level decompressor 5 acting of expanding again, outputting power, the middle high-pressure outlet of second level decompressor 5 provides driving fluid for second level ejector 6, the gaseous working medium that second level decompressor 5 exports enters condenser 8 and carries out condensation heat transfer by low-temperature heat source, being condensed into liquid low pressure working fluid enters second level regenerator 7 and carries out entering second level ejector 6 after heat exchange, gas-liquid mixed working medium after second level ejector 6 Pressure jettings is through the further cooling heat transferring of second level regenerator 7, then enter first order regenerator 9, then working medium enters into first order ejector 3, the gas-liquid mixed working medium of Pressure jetting is through the further cooling heat transferring of first order regenerator 9, then enter working medium pump 10, after working medium pump 10, working medium enters vaporizer 1 again, complete circulation.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make the concrete conversion of a lot of forms, within these all belong to protection scope of the present invention.

Claims (1)

1. the organic rankine cycle system of the two injection supercharging devices of band, it is characterized in that, comprise vaporizer (1), first order decompressor (2), first order ejector (3), Intermediate Heat Exchanger (4), second level decompressor (5), second level ejector (6), second level regenerator (7), condenser (8), first order regenerator (9) and working medium pump (10);
The sender property outlet of described vaporizer (1) is connected with the entrance of described first order decompressor (2), the middle high-pressure outlet of described first order decompressor (2) is connected with the high pressure entry of described first order ejector (3), the low tension outlet of described first order decompressor (2) is connected with the working medium entrance of described Intermediate Heat Exchanger (4), the sender property outlet of described Intermediate Heat Exchanger (4) is connected with the entrance of described second level decompressor (5), the middle high-pressure outlet of described second level decompressor (5) is connected with the high pressure entry of described second level ejector (6), the low tension outlet of described second level decompressor (5) is connected with the working medium entrance of described condenser (8), the sender property outlet of described condenser (8) is connected with the low pressure working fluid entrance of described second level regenerator (7), the low pressure working fluid outlet of described second level regenerator (7) is connected with the low-pressure inlet of described second level ejector (6), the outlet of described second level ejector (6) is connected with the high pressure stage working medium entrance of described second level regenerator (7), the high pressure stage sender property outlet of described second level regenerator (7) is connected with the low pressure stage working medium entrance of described first order regenerator (9), the low pressure stage sender property outlet of described first order regenerator (9) is connected with the low-pressure inlet of described first order ejector (3), the outlet of described first order ejector (3) is connected with the high pressure stage working medium entrance of described first order regenerator (9), the high pressure stage sender property outlet of described first order regenerator (9) is connected with the entrance of described working medium pump (10), the outlet of described working medium pump (10) is connected with the working medium entrance of described vaporizer (1),
High temperature heat source is connected with the high temperature heat source entrance of described vaporizer (1), the high temperature heat source outlet of described vaporizer (1) is connected with the high temperature heat source entrance of described Intermediate Heat Exchanger (4), and the high temperature heat source outlet of described Intermediate Heat Exchanger (4) is used for entering Heating Cyclic;
Low-temperature heat source is connected with the low-temperature heat source entrance of described condenser (8), and the low-temperature heat source outlet of described condenser (8) is used for entering cool cycles.
CN201410017962.8A 2014-01-15 2014-01-15 Organic Rankine circulating system with double-ejector supercharging device CN103775145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410017962.8A CN103775145A (en) 2014-01-15 2014-01-15 Organic Rankine circulating system with double-ejector supercharging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410017962.8A CN103775145A (en) 2014-01-15 2014-01-15 Organic Rankine circulating system with double-ejector supercharging device

Publications (1)

Publication Number Publication Date
CN103775145A true CN103775145A (en) 2014-05-07

Family

ID=50567832

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410017962.8A CN103775145A (en) 2014-01-15 2014-01-15 Organic Rankine circulating system with double-ejector supercharging device

Country Status (1)

Country Link
CN (1) CN103775145A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038202A1 (en) * 2014-09-11 2016-03-17 Commissariat A L'energie Atomique Et Aux Energies Alternatives System for energy production based on a rankine cycle
CN105840259A (en) * 2016-04-11 2016-08-10 大连海事大学 Air extraction heat regenerative organic Rankine circulation system with ejector
CN106640247A (en) * 2016-12-23 2017-05-10 张承虎 Thermal power generation system with ejector
CN106837442A (en) * 2017-03-02 2017-06-13 广东工业大学 A kind of pair of injecting type ORC system
CN108167040A (en) * 2017-11-17 2018-06-15 昆明理工大学 A kind of double compression swelling Organic Rankine Cycle recycling middle and low temperature waste heat power generation systems
WO2018107552A1 (en) * 2016-12-15 2018-06-21 李华玉 Multiple combined-cycle power device
US10436075B2 (en) 2015-01-05 2019-10-08 General Electric Company Multi-pressure organic Rankine cycle
WO2020228357A1 (en) * 2019-05-15 2020-11-19 李华玉 Combined cycle power apparatus

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1125103A (en) * 1965-05-24 1968-08-28 Babcock & Wilcox Ltd Improvements in and relating to the compression of vapour
JP2005248877A (en) * 2004-03-05 2005-09-15 Ishikawajima Harima Heavy Ind Co Ltd Binary cycle power generation method and device
CN101240909A (en) * 2008-03-19 2008-08-13 清华大学 Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat
CN101666250A (en) * 2009-09-25 2010-03-10 天津大学 System for improving low-temperature heat source power generation capacity by using injection pump
CN102022221A (en) * 2010-12-03 2011-04-20 北京工业大学 Organic Rankine cycle diesel engine tail gas and waste heat utilization system using two-stage single-screw expanding machine
CN102435000A (en) * 2011-10-25 2012-05-02 西安交通大学 Solar energy system combined cooling and electricity based on ammonia water mixed refrigerant
CN102518483A (en) * 2011-12-30 2012-06-27 北京中科华誉能源技术发展有限责任公司 Modularized steam waste pressure and waste heat power generation and balanced steam and heat supply system
CN202937321U (en) * 2012-12-06 2013-05-15 重庆大学 Air-exhausting-then-hot-ejection type organic Rankine cycle (ORC) system
CN203669947U (en) * 2014-01-15 2014-06-25 天津大学 Organic Rankine cycle system with double-ejector supercharging device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1125103A (en) * 1965-05-24 1968-08-28 Babcock & Wilcox Ltd Improvements in and relating to the compression of vapour
JP2005248877A (en) * 2004-03-05 2005-09-15 Ishikawajima Harima Heavy Ind Co Ltd Binary cycle power generation method and device
CN101240909A (en) * 2008-03-19 2008-08-13 清华大学 Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat
CN101666250A (en) * 2009-09-25 2010-03-10 天津大学 System for improving low-temperature heat source power generation capacity by using injection pump
CN102022221A (en) * 2010-12-03 2011-04-20 北京工业大学 Organic Rankine cycle diesel engine tail gas and waste heat utilization system using two-stage single-screw expanding machine
CN102435000A (en) * 2011-10-25 2012-05-02 西安交通大学 Solar energy system combined cooling and electricity based on ammonia water mixed refrigerant
CN102518483A (en) * 2011-12-30 2012-06-27 北京中科华誉能源技术发展有限责任公司 Modularized steam waste pressure and waste heat power generation and balanced steam and heat supply system
CN202937321U (en) * 2012-12-06 2013-05-15 重庆大学 Air-exhausting-then-hot-ejection type organic Rankine cycle (ORC) system
CN203669947U (en) * 2014-01-15 2014-06-25 天津大学 Organic Rankine cycle system with double-ejector supercharging device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038202A1 (en) * 2014-09-11 2016-03-17 Commissariat A L'energie Atomique Et Aux Energies Alternatives System for energy production based on a rankine cycle
FR3025831A1 (en) * 2014-09-11 2016-03-18 Commissariat Energie Atomique ENERGY PRODUCTION SYSTEM BASED ON RANKINE CYCLE
US10436075B2 (en) 2015-01-05 2019-10-08 General Electric Company Multi-pressure organic Rankine cycle
CN105840259A (en) * 2016-04-11 2016-08-10 大连海事大学 Air extraction heat regenerative organic Rankine circulation system with ejector
WO2018107552A1 (en) * 2016-12-15 2018-06-21 李华玉 Multiple combined-cycle power device
CN106640247A (en) * 2016-12-23 2017-05-10 张承虎 Thermal power generation system with ejector
CN106640247B (en) * 2016-12-23 2018-02-27 张承虎 A kind of heat power generating system with injector
CN106837442A (en) * 2017-03-02 2017-06-13 广东工业大学 A kind of pair of injecting type ORC system
CN108167040A (en) * 2017-11-17 2018-06-15 昆明理工大学 A kind of double compression swelling Organic Rankine Cycle recycling middle and low temperature waste heat power generation systems
CN108167040B (en) * 2017-11-17 2020-05-15 昆明理工大学 Double-pressure expansion organic Rankine cycle recovery medium-low temperature waste heat power generation system
WO2020228357A1 (en) * 2019-05-15 2020-11-19 李华玉 Combined cycle power apparatus

Similar Documents

Publication Publication Date Title
CN108019245B (en) Multiple combined cycle power plant
US10247050B2 (en) Energy tower of multi-energy-form output for stepwise recovering waste heat of a gas engine
CN106765448A (en) A kind of energy-saving heating system for reducing heat supply return water temperature
CN108119195B (en) Combined cycle power plant
CN102878603B (en) Gas-steam circulation combined double-stage coupling heat pump heat supply device
CN106705185A (en) Energy-saving heat supply system with function of reducing temperature of heat supply return water
Li et al. A Kalina cycle with ejector
CN102562496B (en) Middle/low-temperature geothermic efficient thermoelectric coupling combined supply system based on organic Rankine cycle (ORC)
CN108119194B (en) Triple combined cycle power plant
CN102022144B (en) Thermal power generation system with function of exhaust steam recovery
He et al. Performance research on modified KCS (Kalina cycle system) 11 without throttle valve
CN204610203U (en) A kind of adiabatic compression air energy-storage and the integrated system of solar energy
CN2929596Y (en) Absorptive heat pump system for recovering waste heat from power plant, printing and dyeing, oil field and pharmaceutical industries
CN202381129U (en) Power supplying system
CN202182510U (en) Centralized heat supply system capable of utilizing waste heat of direct air cooling power plant
CN103161607A (en) Combined power generating system based on waste-heat utilization of combustion motor
CN100554827C (en) two-stage first class absorption heat pump
CN103806969B (en) System for cycling power generation by means of supercritical CO2 working medium
CN106089337B (en) For the supercritical CO of waste heat recovery2With organic Rankine association circulating power generation system
Li et al. A supercritical or transcritical Rankine cycle with ejector using low-grade heat
CN204552850U (en) The novel heat-power cogeneration system combined that card Linne circulates and flash distillation circulates
CN104197397A (en) Energy-saving heat supply system for decreasing temperature of heating return water and recovering waste heat of thermal power plant
CN107939548B (en) Novel internal combustion engine waste heat utilization combined cooling heating and power system and working method thereof
CN104153834B (en) A kind of generating based on the circulation of card Linne, cooling association system
CN102748895B (en) Gas heat-pump energy supplying system based on power generation of third working medium

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140507

C02 Deemed withdrawal of patent application after publication (patent law 2001)