CN101598040B - Power circulation system and power circulation method - Google Patents
Power circulation system and power circulation method Download PDFInfo
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- CN101598040B CN101598040B CN2008101143346A CN200810114334A CN101598040B CN 101598040 B CN101598040 B CN 101598040B CN 2008101143346 A CN2008101143346 A CN 2008101143346A CN 200810114334 A CN200810114334 A CN 200810114334A CN 101598040 B CN101598040 B CN 101598040B
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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
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Abstract
The invention relates to a power circulation system and a power circulation method. The power circulation system comprises a steam turbine, a generator, an absorber and an absorbent crystallizer, wherein the steam turbine is provided with an air inlet pipe and an air outlet pipe; the generator is internally provided with absorbing solution and a generation heat exchanger, the generation heat exchanger is used for heating the absorbing solution so as to produce cycle fluid steam, the inlet of the generation heat exchanger is connected to the air outlet pipe of the steam turbine; the absorber is internally provided with absorbing solution and an absorbing heat exchanger, the inlet of the absorbing heat exchanger is connected to the outlet of the generation heat exchanger, and the outlet of the absorbing heat exchanger is connected to the air inlet pipe of the steam turbine; a communicating pipe is arranged between the generator and the absorber; and the absorbent crystallizer comprises a crystallizer absorbing solution inlet, a crystallizer diluted solution outlet and a crystal-containing solution outlet. The power circulation system obviously improves the heat efficiency and the generation efficiency of power circulation through recycling condensation heat of exhausted steam of the steam turbine.
Description
Technical field
The present invention relates to a kind of power cycle technology of Thermal Power Engineering Field, particularly a kind of absorption heat pump is circulated is fused to power circulation system and the power circulation method in the power cycle.
Background technique
Steam turbine generator is one of main mode of conventional thermo-mechanical power generation.Working principle based on the steam turbine generator of Rankine cycle is,, and drives generator and generates electricity as the admission driving steam turbine with the steam of HTHP, and steam is discharged from steam turbine through the steam discharge of the acting back formation low pressure that expands.Steam discharge gets into condenser after the cooling water heat release is condensed into water, sends into boiler by the feed water pump pressurization, and water receives thermal evaporation to form high temperature and high pressure steam in boiler, thereby accomplishes circulation.As stated; Since in Rankine cycle working medium (steam discharge) through condenser to a large amount of condensation latent heat of outside drain; Thereby the thermal efficiency of Rankine cycle is that the generating efficiency of steam turbine is lower, and in 10～40% level, generating efficiency reduces with the reduction of throttle (steam) temperature and pressure usually.
Summary of the invention
Main purpose of the present invention is to overcome the especially high problem of energy grade of the low and thermal source that requires of the thermal efficiency that exists of Turbo-generator Set of existing thermo-mechanical power generation system; And a kind of new power circulation method and power circulation system are provided; Technical problem to be solved is to make it can heat various, that comprise the low-grade external heat source of senior middle school be converted into merit or electric power expeditiously; Thereby realize the novel hot mechanomotive force circulating technology of clean and effective; Be suitable for practicality more, and have the value on the industry.
The object of the invention and solve its technical problem and adopt following technological scheme to realize.According to a kind of power circulation system that the present invention proposes, it comprises: steam turbine, be used for acting or generating under steam driven, and it has admission line and exhaust duct; Generator, in absorbent solution is housed and heat exchanger takes place, this generations heat exchanger is used to heat this absorbent solution to produce absorption cycle fluid steam, the import of this generation heat exchanger is connected in the exhaust duct of said steam turbine; Adsorber; In absorbent solution is housed and absorbs heat exchanger; This absorption heat exchanger is used to heat power cycle working medium to produce the power cycle working substance steam of HTHP; The import of this absorption heat exchanger is connected in the outlet of said generation heat exchanger, and the outlet of this absorption heat exchanger is connected in the admission line of said steam turbine; Described generator and adsorber are provided with connecting pipe; Absorbent crystallizer, it comprises: the crystallizer absorbent solution inlet is connected in adsorber absorbent solution outlet and generator taphole through pipeline; The crystallizer dilute solution exports, and is connected in the absorbent solution inlet of generator through pipeline; And contain the crystallization solution delivery outlet, be connected in the absorbent solution inlet of adsorber through pipeline.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Preferably, aforesaid power circulation system, at least one in the exhaust duct of wherein said steam turbine and the admission line of described steam turbine is provided with heater.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Preferably, aforesaid power circulation system, wherein said heater are heat exchanger, storage heater, solar thermal collector or burner.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Preferably; Aforesaid power circulation system; It comprises that also absorbent solution is from heat exchanger; Be arranged on described absorbent crystallizer and generator and the pipeline that adsorber is connected, be used to get into the absorbent solution of absorbent crystallizer, from the dilute solution of absorbent crystallizer output with from the heat exchange between the crystallization solution that contains of absorbent crystallizer output.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Preferably, aforesaid power circulation system, the concentration of the absorbent solution in the wherein said generator is less than the concentration of the absorbent solution in the adsorber.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Preferably, aforesaid power circulation system, the absorbing agent of wherein said absorbent solution are LiBr, LiCl, LiNO
3, Li
2SO
4, ZnCl
2, ZnBr
2, NaCl, KCl, Na
2SO
4, K
2SO
4, NaBr, KBr, CaCl
2And MgBr
2In one or several mixture.
The object of the invention and solve its technical problem and also adopt following technological scheme to realize.A kind of power circulation method that proposes according to the present invention comprises:
(1) in adsorber, the absorbent solution of high concentration absorbs the absorption cycle fluid steam from generator, discharges to absorb heat to add the power cycle working medium in the thermal absorption heat exchanger, makes it produce the power cycle working substance steam of HTHP;
(2) above-mentioned power cycle working substance steam is imported in the steam turbine, drives this steam turbine externally acting or generating;
(3) steam turbine is discharged the power cycle working substance steam of low-temp low-pressure, this steam discharge is imported take place to condense in the heat exchanger, discharges heat of condensation to add the absorbent solution in the calorifier, it is produced absorb cycle fluid steam;
(4) the absorption cycle fluid steam that produces in the generator is imported in the adsorber;
(5) absorbent solution in adsorber and the generator is outputed in the absorbent crystallizer, in crystallizer, produce the absorbing agent crystallization, and carry out solid-liquid separation, the dilute solution after the solid-liquid separation is delivered in the generator, contains crystallization solution and is delivered in the adsorber.
Preferably, aforesaid power circulation method, it also comprises: to adsorber and generator output to the absorbent solution of absorbent crystallizer, from the dilute solution of absorbent crystallizer output and contain crystallization solution and carry out heat exchange.
Preferably, aforesaid power circulation method, the one of which of the power cycle working substance steam that power cycle working substance steam of from absorb heat exchanger, exporting and steam turbine are discharged or the two are heated by external heat source.
Preferably, aforesaid power circulation method, wherein said external heat source are underground heat, solar heat, low ebb electricity, middle-low temperature heat or fuel combustion heat.
Preferably, aforesaid power circulation method adopts external source that described absorbent crystallizer is cooled off.
Preferably, aforesaid power circulation method is in the described adsorber in the absorbing agent mass concentration ratio generator of absorbent solution more than the high 7wt% of absorbing agent mass concentration of absorbent solution.
Preferably, aforesaid power circulation method, the saturation vapour pressure of absorbent solution is higher than more than the saturation vapour pressure 0.05kPa of absorbent solution in the adsorber in the wherein said generator.
The present invention compared with prior art has following significantly advantage and beneficial effect:
(1) heat of condensation that is had through the reuse turbine discharge has significantly improved the thermal efficiency and the generating efficiency of power cycle;
(2) owing to need not to use outside cold that steam discharge is cooled off, can significantly reduce the cooling load of cooling tower, thus the water resources of remarkable saves valuable;
(3) can various, more low-grade energy be comprised renewable energy sourcess such as solar heat, biomass energies such as stalk, fuel wood, biogas, bio-ethanol, middle-low temperature heat and low ebb electricity etc. is converted into electric energy cleanly and efficiently.
Above-mentioned explanation only is the general introduction of technological scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. specify as after.
Description of drawings
Fig. 1 is the flow chart of the power circulation system of the embodiment of the invention 1.
Fig. 2 is the flow chart of the power circulation system of the embodiment of the invention 2.
Fig. 3 is the flow chart of the power circulation system of the embodiment of the invention 3.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked in order further to set forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To its embodiment of power circulation system, structure, characteristic and the effect thereof that proposes according to the present invention, specify as after.
Seeing also shown in Figure 1ly, is the flow chart of the power circulation system of the embodiment of the invention 1.This power circulation system mainly comprises: steam turbine 200, generator 10, adsorber 20 and absorbent crystallizer 30.The equipment of described steamer 200 machines for generating electricity or do work under promoting at steam, it can adopt equipment of the prior art.Steam turbine 200, it has admission line 240 that is connected in input end and the exhaust duct 230 that is connected in output terminal, is connected in generator 210 through transmission device.Generator 210 produces electric power by Steam Turbine Driven.In generator 10, adsorber 20 and absorbent crystallizer 30, be filled with absorbent solution, and this absorbent solution is circulated between above-mentioned three devices.Described absorbent solution is to be made up of the absorbing agent that absorbs cycle fluid and be dissolved in this working medium.The absorbing agent of described absorbent solution is LiBr, LiCl, LiNO
3, Li
2SO
4, ZnCl
2, ZnBr
2, NaCl, KCl, Na
2SO
4, K
2SO
4, NaBr, KBr, CaCl
2And MgBr
2In one or several mixture, described absorption cycle fluid is one or several the mixture in water, ammonia, methyl alcohol and the ethanol.
In the present embodiment, on admission line 240, be provided with heater 220, be used for the power cycle steam that gets into steam turbine is heated, thereby help improving the leaving momentum and the steam discharge mass dryness fraction of steam turbine with the vapor (steam) temperature of further raising importing steam turbine.Described heater 220 is heat exchanger, storage heater, geothermal heater, solar thermal collector or burner.The fuel of said fuel device can be the material that fuel wood, coal, rock gas, liquefied petroleum gas, biogas, bio-ethanol, stalk or fuel wet goods can burn.The mode of heating of above-mentioned heater 220 can adopt direct mode of heating, the mode that also can adopt circulation heating agent and heated steam to carry out heat exchange.
Power circulation system like above-mentioned structure formation; Constituted the circulation loop of the power cycle working medium of a sealing by steam turbine, generation heat exchanger, absorption heat exchanger and heater and connecting tube thereof; In adsorber, be absorbed in the absorption working substance steam that produces in the generator, thereby the absorption heat that can produce higher temperature makes absorption heat exchanger medium power cycle fluid be converted into the steam with higher temperature and elevated pressures from liquid state through absorbent solution with higher concentration.This power cycle working substance steam gets into the steam turbine acting, produces electric power thereby outputting power perhaps drives generator.And constituted the absorbing agent of sealing and the circulation loop of absorption cycle fluid by generator, adsorber, absorbent crystallizer and connecting tube thereof; Can realize the reduction of absorbent solution concentration in lifting and the generator of absorbent solution concentration in the adsorber; And realize absorbing cycle fluid and between generator and adsorber, pass to adsorber with steam state from generator, and get back to the circulation of generator from adsorber with liquid state.Through above-mentioned two circulations, the heat that heater is provided is as much as possible to be used in the acting of steam turbine, thereby makes this circulatory system can utilize external heat source to do work expeditiously or generate electricity.
Seeing also shown in Figure 2ly, is the flow chart of the embodiment of the invention 2.The power circulation system of present embodiment is compared with embodiment 1; It has increased absorbent solution from heat exchanger 40; Be arranged on described absorbent crystallizer 30 and generator 10 and the pipeline that adsorber 20 is connected, be used for the absorbent solution that gets into absorbent crystallizer, carry out heat exchange from the dilute solution of absorbent crystallizer output with from the crystallization solution that contains of absorbent crystallizer output.Absorbent solution is that from the effect of heat exchanger 30 through after the heat exchange, the absorbent solution temperature that gets into absorbent crystallizer 30 reduces, and helps the formation of crystallization, thereby has practiced thrift the required cold of crystallization; The temperature that outputs to the dilute solution of generator 10 is improved, and helps absorbing the evaporation of cycle fluid; The temperature that contains the absorbing agent crystallization solution of output also is improved, thereby helps keeping adsorber 20 under higher temperature, to be worked.
Seeing also shown in Figure 3ly, is the flow chart of the embodiment of the invention 3.The power circulation system of present embodiment is compared with embodiment 2, in the exhaust duct 230 of steam turbine, has increased another heater 250, is used for the steam discharge of blow-off line 230 is heated.Because the temperature of said exhaust significantly is lower than the temperature of admission, thereby can effectively more low-grade external heat source be used for generating electricity through heater 250.
In above-mentioned each embodiment, the basic procedure of accomplishing technological scheme of the present invention has only been described, carried out for example, guaranteeing pump or valve that each flow of matter direction is required for other parts of realizing this flow process or equipment as slightly.For example, at the pump shown in Fig. 3 260, it is to be used to make the supercharging of power cycle working medium and to flow to and absorb heat exchanger from heat exchanger takes place.For realizing needed other equipment of the described power circulation system of above-mentioned each embodiment or part, those skilled in the art all can find corresponding technological means in the prior art, and the inventor repeats no more at this.
Embodiments of the invention 4 have also proposed a kind of power circulation method of the power circulation system based on embodiment 1, and it may further comprise the steps:
(1) in adsorber, the absorbent solution of high concentration absorbs the absorption cycle fluid steam from generator, discharges to absorb heat to add the power cycle working medium in the thermal absorption heat exchanger, makes it be converted into the steam with higher temperature and pressure from liquid state;
(2) described power cycle working substance steam heater via is heated by external heat source, then, is imported in the steam turbine, drives this steam turbine externally acting or generating;
(3) steam turbine is discharged the power cycle working substance steam, and this steam discharge importing is taken place to condense in the heat exchanger, discharges heat of condensation to add the absorbent solution in the calorifier, it is produced absorb cycle fluid steam;
(4) the absorption cycle fluid steam that produces in the generator is imported in the adsorber;
(5) absorbent solution in adsorber and the generator is outputed in the absorbent crystallizer; Adopt external source that described absorbent crystallizer is cooled off; In crystallizer, produce the absorbing agent crystallization; And carry out sedimentation separation, the dilute solution after the sedimentation separation is delivered in the generator, contains crystallization solution and is delivered in the adsorber.
Embodiments of the invention 5 have also proposed a kind of power circulation method of the power circulation system based on embodiment 2; The power circulation method of present embodiment is compared with embodiment 4, its also comprise to adsorber and generator output to the absorbent solution of absorbent crystallizer, from the dilute solution of absorbent crystallizer output and contain crystallization solution and carry out heat exchange.Can effectively reduce demand through this heat exchange steps to cold.
Embodiments of the invention 6 have also proposed a kind of power circulation method of the power circulation system based on embodiment 3, and the power circulation method of present embodiment is compared with embodiment 5, and it also comprises the step that power cycle working substance steam that steam turbine is discharged heats.
In the foregoing description 4-6, described external heat source is underground heat, solar heat, low ebb electricity, middle-low temperature heat or fuel combustion heat; In the described adsorber in the absorbing agent mass concentration ratio generator of absorbent solution more than the high 7wt% of absorbing agent mass concentration of absorbent solution; Simultaneously, the saturation vapour pressure of absorbent solution is higher than more than the saturation vapour pressure 0.05kPa of absorbent solution in the adsorber in the said generator.
The described technological scheme of the above embodiment of the present invention does not have special restriction to the kind of employing absorbent solution; The foregoing description all is that the right absorbent solution of working medium is that example is illustrated with the water-lithium bromide, as the right working medium of working medium that the present invention adopts, except water; Also can adopt ammonia, methyl alcohol, ethanol and composition thereof etc.; As the right absorbing agent of working medium that the present invention adopts, except lithium bromide, also can adopt LiCl, LiNO
3, Li
2SO
4, ZnCl
2, ZnBr
2, NaCl, KCl, Na
2SO
4, K
2SO
4, NaBr, KBr, CaCl
2Or MgBr
2And composition thereof etc.
Below through embodiment the exploitativeness of the foregoing description is described with concrete parameter.
Instance 1
This instance adopts embodiment's 5 described methods; Adopt 150 ℃ of industrial exhaust heats steam turbine admission and turbine discharge to be heated as external heat source; And the cooling water that adopts 5 ℃ comes cooling and absorbing agent crystallizer; The steam turbine adiabatic efficiency is 80%, and generator efficiency is 90%, and the power circulation system generating efficiency of this instance is 22%.
Instance 2
This instance adopts embodiment's 5 described methods; Employing is heated steam turbine admission and turbine discharge as external heat source from 200 ℃ of heat energy of geothermal heat exchanger; And the cooling water that adopts 5 ℃ comes cooling and absorbing agent crystallizer; The steam turbine adiabatic efficiency is 80%, and generator efficiency is 90%, and the power circulation system generating efficiency of this instance is 34%.
Instance 3
This instance adopts embodiment's 4 described methods; Employing from 250 ℃ of combustion product gases of boiler as external heat source to steam turbine admission heat; And the cooling water that adopts 20 ℃ comes cooling and absorbing agent crystallizer; The steam turbine adiabatic efficiency is 80%, and generator efficiency is 90%, and the power circulation system generating efficiency of this instance is 33%.
Instance 4
This instance adopts embodiment's 4 described methods; Employing from 400 ℃ of heat energy of solar thermal collector as external heat source to steam turbine admission heat; And the cooling water that adopts 20 ℃ comes cooling and absorbing agent crystallizer; The steam turbine adiabatic efficiency is 80%, and generator efficiency is 90%, and the power circulation system generating efficiency of this instance is 37%.
Comparative example
This comparative example adopts the steam turbine generator based on Rankine cycle; Adopt the thermal source of 200 ℃ of heat energy of geothermal heat exchanger as steam boiler; And adopt 20 ℃ cooling water as the low-temperature receiver of steam discharge condenser; The steam turbine adiabatic efficiency is 80%, and generator efficiency is 90%, and the generating efficiency of this comparative example is 17%.
The formula of the power circulation system generating efficiency of above-mentioned instance and comparative example is following:
η
c＝P/Q
＝(Q-q
1-q
2)×η
p/Q
＝ΔH×η
p/Q
η
c: the generating efficiency of power circulation system
P: the generated energy of power circulation system, kJ
Q: the heat that power cycle working medium absorbs from external heat source, kJ
η
p: generator efficiency
q
1: the amount of cooling water of absorbent crystallizer, kJ
q
2: the radiation loss of system, kJ
Δ H: the enthalpy difference of admission and steam discharge, kJ
Following table 1 is the running parameter and the performance of above-mentioned instance 1～4.
Table 1
For realizing that the necessary other technologies means of technique scheme all can adopt technology of the prior art to realize.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technological scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technological scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technological scheme of the present invention according to technical spirit of the present invention.
Claims (13)
1. power circulation system is characterized in that it comprises:
Steam turbine is used for acting or generating under steam driven, and it has admission line and exhaust duct;
Generator, in absorbent solution is housed and heat exchanger takes place, this generations heat exchanger is used to heat this absorbent solution to produce absorption cycle fluid steam, the import of this generation heat exchanger is connected in the exhaust duct of said steam turbine;
Adsorber; In absorbent solution is housed and absorbs heat exchanger; This absorption heat exchanger is used to heat power cycle working medium to produce the power cycle working substance steam; The import of this absorption heat exchanger is connected in the outlet of said generation heat exchanger, and the outlet of this absorption heat exchanger is connected in the admission line of said steam turbine;
Described generator and adsorber are provided with connecting pipe;
Absorbent crystallizer, it comprises:
The crystallizer absorbent solution inlet is connected in adsorber absorbent solution outlet and generator taphole through pipeline;
The crystallizer dilute solution exports, and is connected in the absorbent solution inlet of generator through pipeline; And
Contain the crystallization solution delivery outlet, be connected in the absorbent solution inlet of adsorber through pipeline.
2. power circulation system according to claim 1 is characterized in that in the admission line of exhaust duct and described steam turbine of wherein said steam turbine at least one is provided with heater.
3. power circulation system according to claim 2 is characterized in that wherein said heater is heat exchanger, storage heater, solar thermal collector or burner.
4. power circulation system according to claim 1; It is characterized in that it comprises that also absorbent solution is from heat exchanger; Be arranged on described absorbent crystallizer and generator and the pipeline that adsorber is connected, be used to get into the absorbent solution of absorbent crystallizer, from the dilute solution of absorbent crystallizer output with from the heat exchange between the crystallization solution that contains of absorbent crystallizer output.
5. power circulation system according to claim 1 is characterized in that the concentration of the concentration of the absorbent solution in the wherein said generator less than the absorbent solution in the adsorber.
6. power circulation system according to claim 1, the absorbing agent that it is characterized in that wherein said absorbent solution is LiBr, LiCl, LiNO
3, Li
2SO
4, ZnCl
2, ZnBr
2, NaCl, KCl, Na
2SO
4, K
2SO
4, NaBr, KBr, CaCl
2And MgBr
2In one or several mixture.
7. power circulation method is characterized in that comprising:
(1) in adsorber, the absorbent solution of high concentration absorbs the absorption cycle fluid steam from generator, discharges to absorb heat to add the power cycle working medium in the thermal absorption heat exchanger, makes it produce the power cycle working substance steam of HTHP;
(2) above-mentioned power cycle working substance steam is directed in the steam turbine, drives this steam turbine externally acting or generating;
(3) steam turbine is discharged the power cycle working substance steam of low-temp low-pressure, this steam is imported take place to condense in the heat exchanger, discharges heat of condensation to add the absorbent solution in the calorifier, it is produced absorb cycle fluid steam;
(4) the absorption cycle fluid steam that produces in the generator is imported in the adsorber;
(5) absorbent solution in adsorber and the generator is outputed in the absorbent crystallizer, in crystallizer, produce the absorbing agent crystallization, and carry out solid-liquid separation, the dilute solution after the solid-liquid separation is delivered in the generator, contains crystallization solution and is delivered in the adsorber.
8. power circulation method according to claim 7 is characterized in that it also comprises: to adsorber and generator output to the absorbent solution of absorbent crystallizer, from the dilute solution of absorbent crystallizer output and contain crystallization solution and carry out heat exchange.
9. perhaps the two is heated by external heat source the one of which of the power cycle working substance steam that power circulation method according to claim 7, the power cycle working substance steam that it is characterized in that from absorb heat exchanger, exporting and steam turbine are discharged.
10. power circulation method according to claim 9 is characterized in that described external heat source is underground heat, solar heat, low ebb electricity, middle-low temperature heat or fuel combustion heat.
11. power circulation method according to claim 7 is characterized in that adopting external source that described absorbent crystallizer is cooled off.
12. power circulation method according to claim 7 is characterized in that more than the high 7wt% of absorbing agent mass concentration of absorbent solution in the absorbing agent mass concentration ratio generator of absorbent solution in the described adsorber.
13. power circulation method according to claim 7 is characterized in that the saturation vapour pressure of absorbent solution in the wherein said generator is higher than more than the saturation vapour pressure 0.05kPa of absorbent solution in the adsorber.
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|---|---|---|---|
| CN2008101143346A CN101598040B (en) | 2008-06-03 | 2008-06-03 | Power circulation system and power circulation method |
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|---|---|---|---|
| CN2008101143346A CN101598040B (en) | 2008-06-03 | 2008-06-03 | Power circulation system and power circulation method |
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| CN101598040B true CN101598040B (en) | 2012-05-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102482949B (en) * | 2009-06-25 | 2014-06-04 | 苏庆泉 | Power cycle system and power cycle method |
| CN103775148A (en) * | 2012-10-22 | 2014-05-07 | 张玉良 | Self-cooled thermal power acting method |
| CN108413794B (en) * | 2017-09-18 | 2024-02-20 | 徐阳 | Solution crystallization energy storage structure and generating energy storage device using same |
| CN109443065B (en) * | 2018-12-01 | 2023-12-26 | 中节能城市节能研究院有限公司 | Large concentration difference absorption type energy storage device based on active crystallization technology |
| CN115638037A (en) * | 2021-07-19 | 2023-01-24 | 营嘉科技股份有限公司 | Heat and pressure storage circulating power generation system and control method thereof |
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|---|---|---|---|---|
| US3950949A (en) * | 1974-03-26 | 1976-04-20 | Energy Technology Incorporated | Method of converting low-grade heat energy to useful mechanical power |
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| US5311741A (en) * | 1992-10-09 | 1994-05-17 | Blaize Louis J | Hybrid electric power generation |
| JP2660485B2 (en) * | 1994-04-14 | 1997-10-08 | 中小企業事業団 | Heat pump type crystal product manufacturing method and apparatus |
| JP2002098436A (en) * | 2000-09-22 | 2002-04-05 | Daikin Ind Ltd | Freezing apparatus |
| JP2007322028A (en) * | 2006-05-30 | 2007-12-13 | Chugoku Electric Power Co Inc:The | Absorption type refrigerating system |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950949A (en) * | 1974-03-26 | 1976-04-20 | Energy Technology Incorporated | Method of converting low-grade heat energy to useful mechanical power |
| US4342197A (en) * | 1980-08-25 | 1982-08-03 | Sperry Corporation | Geothermal pump down-hole energy regeneration system |
| US5311741A (en) * | 1992-10-09 | 1994-05-17 | Blaize Louis J | Hybrid electric power generation |
| JP2660485B2 (en) * | 1994-04-14 | 1997-10-08 | 中小企業事業団 | Heat pump type crystal product manufacturing method and apparatus |
| JP2002098436A (en) * | 2000-09-22 | 2002-04-05 | Daikin Ind Ltd | Freezing apparatus |
| JP2007322028A (en) * | 2006-05-30 | 2007-12-13 | Chugoku Electric Power Co Inc:The | Absorption type refrigerating system |
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| CN101598040A (en) | 2009-12-09 |
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