CN102116274B - Ammonia water reheating-injecting power absorption circulation system driven by temperature difference of seawater - Google Patents
Ammonia water reheating-injecting power absorption circulation system driven by temperature difference of seawater Download PDFInfo
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- CN102116274B CN102116274B CN201110004241XA CN201110004241A CN102116274B CN 102116274 B CN102116274 B CN 102116274B CN 201110004241X A CN201110004241X A CN 201110004241XA CN 201110004241 A CN201110004241 A CN 201110004241A CN 102116274 B CN102116274 B CN 102116274B
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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
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- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The invention relates to the field of working by using temperature difference of seawater, in particular to an ammonia water reheating-injecting power absorption circulation system driven by the temperature difference of the seawater. The system comprises a generator, gas-liquid separators and a steam turbine, wherein the steam turbine comprises a primary steam turbine and a secondary steam turbine. The gas channel outlet of the generator is communicated with an inlet of the primary steam turbine through the gas-liquid separator I. The outlet of the primary steam turbine is communicated with an inlet of a reheater through a pipeline. The outlet of the reheater is communicated with the gas-liquid separator II through a pipeline. The liquid outlet of the gas-liquid separator II is communicated with a working fluid inlet of a secondary injector through a pipeline. The gas outlet of the gas-liquid separator II is communicated with an inlet of the secondary steam turbine through a pipeline. The outlet of the secondary steam turbine is communicated with a gas inlet of an injecting absorption heat exchanger through a pipeline. The first outlet of the injecting absorption heat exchanger is communicated with a gas sucking inlet of the secondary injector through a pipeline. The outlet of the secondary injector is communicated with inlets of a solution pump and a solution heat exchanger through pipelines. By virtue of the system, the circulation efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of temperature difference of seawater acting field, the ammoniacal liquor that especially a kind of temperature difference of seawater drives again heat-injection absorbs power circulation system.
Background technique
The ocean thermal energy conversion device that adopts at present is mainly enclosed Lang Ken circulation means.Enclosed Lang Ken circulation means is mainly by vaporizer 1 ', steam turbine 2 ', condenser 3 ' and solution pump 4 ' form, this device is with low boiling working fluid, such as propane, isobutane, fluorine Lyons, ammonia etc. are as operation material, rely on this working medium in vaporizer 1 ', to absorb heat and evaporate the externally acting of gas push steam turbine 2 ' rotation that produces, the outlet of vaporizer 1 ' links to each other with the import of steam turbine 2 ', the outlet of compressor links to each other with the import of condenser 3 ', externally the exhaust steam after the acting is sent in the condenser 3 and is condensed into liquid, and condensed liquid enters vaporizer 1 ' after pressurizeing by solution pump 4 '.This device is by the liquid working substance evaporation of absorbing heat in vaporizer 1 ', produced simultaneously Steam Actuation steam turbine 2 ' externally acting generates electricity, by the condensation in condenser 3 ' of the exhaust steam behind the steam turbine 2 ', i.e. the evaporation of this device by working medium-condensation realizes continuous power cycle.
But the evaporation-condensation of above-mentioned working medium is physical process, and its generated energy is subjected to the restriction of Working fluid phase changing potential heat value, thereby cycle efficiency is restricted; In addition, the adsorber that adopts in engineering mostly is bushing type adsorber, bubbling absorber and membrance-type absorber.Existing adsorber exists liquid and gas area of contact little, contacts insufficiently with cooling wall, and the solution loading is large, is unfavorable for the shortcomings such as heat exchange.
Summary of the invention
The object of the invention is to propose ammoniacal liquor that a kind of temperature difference of seawater drives again heat-injection absorb power circulation system, this system can make the concentrated ammonia solution behind the absorption heat-exchange obtain lower temperature, has greatly improved cycle efficiency.
The present invention adopts following technological scheme to realize: the ammoniacal liquor that a kind of temperature difference of seawater drives again heat-injection absorbs power circulation system, comprise generator, the gas-liquid separator I, gas-liquid separator II and steam turbine, wherein steam turbine comprises a level steam turbine and two level steam turbines, wherein, the gas channel outlet of generator is communicated with the import of a level steam turbine by the gas-liquid separator I, corresponding arranges an import at generator, the generator import is communicated with by the liquid outlet of pipeline with the gas-liquid separator I, the fluid passage outlet of generator is communicated with the import of solution heat exchanger by pipeline, the outlet of corresponding solution heat exchanger is communicated with by the liquid-inlet of throttle valve with injection absorption heat-exchange device, the fluid passage import of generator is communicated with the solution heat exchanger outlet by pipeline, the import of corresponding solution heat exchanger is communicated with solution pump, be provided with in addition a pair of import and export on the generator, this generator is imported and exported and is communicated with the export and import of high temperature heat reservoir I respectively, the outlet of one level steam turbine is communicated with the reheater import by pipeline, the reheater outlet is communicated with the gas-liquid separator II by pipeline, on the reheater a pair of import and export are set in addition simultaneously, export and import with high temperature heat reservoir II is communicated with respectively, the liquid outlet of gas-liquid separator II is communicated with the working fluid import of secondary ejector by pipeline, the gas outlet of gas-liquid separator II is communicated with two level steam turbine imports by pipeline, the outlet of two level steam turbines is communicated with by the gas inlet of pipeline with injection absorption heat-exchange device, the first outlet of injection absorption heat-exchange device is communicated with by the suction inlet of pipeline with the secondary injection device, and the outlet of secondary ejector is communicated with the import of solution heat exchanger by pipeline and solution pump.
Among the present invention, on the described injection absorption heat-exchange device a pair of import and export are set in addition, and are communicated with import and the outlet of low temperature heat reservoir by pipeline, can adopt Mare Frigoris water as low-temperature receiver, for the low temperature heat reservoir provides low temperature.
The one end of described injection absorption heat-exchange device is provided with gas inlet, the other end is provided with the first outlet, be communicated with by ejector between gas inlet and the first outlet, ejector is matrix shape and is spaced, the box heat exchanger with flow-stopping plate of trunnion outside suit of ejector arranges fin along its length direction interval on the inwall of trunnion.
The invention has the beneficial effects as follows: at first, power circulation system of the present invention with ammonia spirit as cycle fluid, utilize ammonia that ammonia spirit desorb in generator produces with the generating of externally doing work of the form pushing turbine of double reheating, the acting ability of unit working medium is higher than traditional enclosed Lang Ken circular work ability, and generator and adsorber unit's heat exchange amount are lower than the unit heat exchange amount of vaporizer and condenser in the traditional enclosed Lang Ken circulation, therefore can obtain higher cycle efficiency; Second, injection absorption heat-exchange device of the present invention replaces traditional bushing type, bubbing type, membrance-type absorber with ejector, use dilute ammonia solution injection ammonia, in the process that injection mixes, be accompanied by dilute ammonia solution to the absorption of ammonia, assimilation effect is improved, in the coefficient of heat transfer very high the ejector trunnion outside and inboard heat exchanger and fin are set respectively simultaneously, can obtain good heat transfer effect, thereby reduce the absorption heat-exchange temperature difference of circulation, obtain solution temperature after the lower heat exchange, cycle efficiency is improved; The 3rd, the highly pressurised liquid of gas-liquid separator separates enters the secondary ejector as working fluid, the concentrated ammonia solution that injection absorption heat-exchange device can be discharged is to the solution pump injection, reduce the wasted work of solution pump with this, simultaneously can also improve the solution pump inlet pressure, further reduce the wasted work of solution pump, improved cycle efficiency.
Description of drawings
Fig. 1 is the structural representation of existing enclosed Lang Ken circulation means;
Fig. 2 is structural representation of the present invention;
Fig. 3 is that the master of injection absorption heat-exchange device among the present invention looks sectional view;
Fig. 4 is that partial sectional view is looked on the left side of injection absorption heat-exchange device among the present invention.
Among the figure: 1 '-vaporizer; 2 '-steam turbine; 3 '-condenser; 4 '-solution pump; 1, generator; 2, gas-liquid separator I; 3, high temperature heat reservoir II; 4, reheater; 5, a level steam turbine; 6, gas-liquid separator II; 7, two level steam turbines; 8, injection absorption heat-exchange device; 9, secondary ejector; 10, solution pump; 11, solution heat exchanger; 12, high temperature heat reservoir I; 13, throttle valve; 14, low temperature heat reservoir; 15, heat exchanger; 16, trunnion; 17, fin; 18, ejector.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Fig. 2 to Fig. 4 be the ammoniacal liquor that drives of temperature difference of seawater of the present invention again heat-injection absorb power circulation system.This system comprises generator 1, gas-liquid separator I 2, gas-liquid separator II 6 and steam turbine, and wherein steam turbine comprises a level steam turbine 5 and two level steam turbines 7.The gas channel outlet of generator 1 is communicated with the import of a level steam turbine 5 by pipeline and gas-liquid separator I 2, and corresponding arranges an import at generator 1, and this import is communicated with by the liquid outlet of pipeline with gas-liquid separator I 2.The fluid passage outlet of generator 1 is communicated with by the import of pipeline with solution heat exchanger 11, and the outlet of corresponding solution heat exchanger 11 is communicated with the liquid-inlet of injection absorption heat-exchange device 8 by pipeline and throttle valve 13; The fluid passage import of generator 1 is communicated with by the outlet of pipeline with solution heat exchanger 11, and the import of corresponding solution heat exchanger 11 is communicated with solution pump 10.Be provided with in addition a pair of import and export on the generator 1, it is communicated with the export and import of high temperature heat reservoir I 12 respectively.After entering the concentrated ammonia solution heat absorption in the generator 1 solution stripping occurs, the desorb reaction of solution is:
NH
4OH＝NH
3＋H
2O＋Q
Be that concentrated ammonia solution decomposes generation ammonia and a small amount of water vapor, wherein ammonia enters in the gas-liquid separator I 2 along the gas channel outlet, and a small amount of moisture that contains in the ammonia is separated by gas-liquid separator I 2 and passes back in the generator 1.High Temperature High Pressure ammonia after being filtered enters in the level steam turbine 5, and isolated high pressure dilute ammonia solution enters injection absorption heat-exchange device 8 through throttle valve 13 as working fluid and carries out the one-level injection after solution heat exchanger 11 cooling pressurizations after the desorb.
The output terminal of one level steam turbine 5 is connected with generator drive device, and a level steam turbine 5 outlets are communicated with reheater 4 imports by pipeline, and reheater 4 outlets are communicated with gas-liquid separator II 6 by pipeline.On the reheater 4 a pair of import and export are set in addition simultaneously, the export and import with high temperature heat reservoir II 3 is communicated with respectively.The High Temperature High Pressure ammonia enters in the level steam turbine 5 and drives its acting, thereby makes a level steam turbine 5 externally acting and generating, and the low-temp low-pressure ammonia after the acting flows in the reheater 4 and reheats, and the overheated ammonia of outflow enters in the gas-liquid separator II 6.The liquid outlet of gas-liquid separator II 6 is communicated with the working fluid import of secondary ejector 9 by pipeline, and the gas outlet of gas-liquid separator II 6 is communicated with 7 imports of two level steam turbines by pipeline.Separate the high-pressure thick ammoniacal liquor that obtains and flow in the secondary ejector 9, the ammonia after the separation then enters 7 actings of two level steam turbines.
The output terminal of two level steam turbines 7 is connected with generator drive device, and 7 outlets of two level steam turbines are communicated with by the gas inlet of pipeline with injection absorption heat-exchange device 8.8 first outlets of injection absorption heat-exchange device are communicated with by the suction inlet of pipeline with secondary injection device 9, on the injection absorption heat-exchange device 8 a pair of import and export are set in addition simultaneously, and be communicated with by import and the outlet of pipeline and low temperature heat reservoir 14, can adopt Mare Frigoris water as low-temperature receiver, for low temperature heat reservoir 14 provides low temperature; Also low temperature heat reservoir 14 can be set, directly supply low temperature by the Mare Frigoris water extraction.The structure of injection absorption heat-exchange device 8 as shown in Figure 3 and Figure 4, the one end is provided with gas inlet, the other end arranges the first outlet, be communicated with by a plurality of ejectors 18 between gas inlet and the first outlet, ejector 18 is matrix shape and is spaced, the box heat exchanger 15 with flow-stopping plate of trunnion 16 outsides suit of ejector, heat exchanger 15 can be realized the heat exchange cooling, along its length direction interval a plurality of fins 17 are set on the inwall of trunnion 16, further improve heat transfer effect, thereby reduce the absorption heat-exchange temperature difference of circulation, obtain solution temperature after the lower heat exchange, cycle efficiency is improved.Low-temp low-pressure ammonia after the acting is as being entered by air absorbing body in the injection absorption heat-exchange device 8, and the dilute ammonia solution of low-temp low-pressure ammonia and low-temp low-pressure carries out one time injection in injection absorption heat-exchange device 8, make ammonia incorporate weak aqua ammonia, and following reaction occurs:
NH
3＋H
2O＝NH
4OH-Q
Thereby make dilute ammonia solution become concentrated ammonia solution, reduce simultaneously the temperature of concentrated ammonia liquor by heat exchanger 15, concentrated ammonia solution enters in the secondary ejector 9 along pipeline.
The working fluid import of secondary ejector 9 is communicated with gas-liquid separator II 6, and suction inlet is communicated with injection absorption heat-exchange device 8, and its outlet is communicated with the import of solution heat exchanger 11 by pipeline and solution pump 10.In secondary injection device 9, the concentrated ammonia liquor that flows out from injection absorption heat-exchange device 8 carries out secondary injection with the concentrated ammonia liquor that flows out from gas-liquid separator II 6, mixed solution is pumped in the solution heat exchanger 11 by solution pump 10, the concentrated ammonia solution of low-temp low-pressure becomes the concentrated ammonia solution of High Temperature High Pressure after by heat exchanger 11, and again flows in the generator 1.By secondary injection device 9 is set, the concentrated ammonia solution that injection absorption heat-exchange device 8 can be discharged can also improve the inlet pressure of solution pump 10 simultaneously to solution pump 10 injections, greatly reduces the power consumption of solution pump 10, has improved cycle efficiency.
The working procedure of this device is as described below: utilize warm sea water pump to make warm seawater at generator 1 interior heating ammonia spirit, the gas of separating sucking-off through generator 1 passes into gas-liquid separator I 2, the ammonia spirit that separates is back in the generator 1, the overheated ammonia that separates then enters a level steam turbine 5 actings, and the low-temp low-pressure ammonia gas subsequent after the acting enters reheater 4 heating.The overheated ammonia that flows out in the reheater 4 passes into gas-liquid separator II 6, and the high-pressure thick ammonia spirit of separation flows directly in the secondary ejector 9, and the ammonia of separation then enters 7 actings of two level steam turbines.Low-temp low-pressure gas after the acting is as entered injection absorption heat-exchange device 8 by air absorbing body, the high pressure dilute ammonia solution process solution heat exchanger 11 and the throttle valve 13 that flow out from generator 1 simultaneously, enter injection absorption heat-exchange device 8 as working fluid and carry out the one-level injection, use simultaneously Mare Frigoris water to carry out heat exchange as low-temperature receiver, through the import that injection absorbs and cooled concentrated ammonia solution enters secondary ejector 9, the concentrated ammonia liquor that separates with gas-liquid separator II 6 carries out the secondary injection, mixed solution is pumped into solution heat exchanger 11 by solution pump 10 subsequently, and the High Temperature High Pressure concentrated ammonia solution of generation passes back into generator 1 and finishes circulation.The present invention can be used for ocean temperature differential power.
Claims (3)
- The ammoniacal liquor that drives of a temperature difference of seawater again heat-injection absorb power circulation system, comprise generator (1), gas-liquid separator I (2), gas-liquid separator II (6) and steam turbine, wherein steam turbine comprises a level steam turbine (5) and two level steam turbines (7), it is characterized in that: the gas channel outlet of generator (1) is communicated with the import of a level steam turbine (5) by gas-liquid separator I (2), corresponding arranges an import at generator (1), generator (1) import is communicated with by the liquid outlet of pipeline with gas-liquid separator I (2), the fluid passage outlet of generator (1) is communicated with by the import of pipeline with solution heat exchanger (11), the outlet of corresponding solution heat exchanger (11) is communicated with the liquid-inlet of injection absorption heat-exchange device (8) by throttle valve (13), the fluid passage import of generator (1) is communicated with solution heat exchanger (11) outlet by pipeline, the import of corresponding solution heat exchanger (11) is communicated with solution pump (10), generator is provided with a pair of import and export on (1) in addition, this generator (1) is imported and exported and is communicated with the export and import of high temperature heat reservoir I (12) respectively, one level steam turbine (5) outlet is communicated with reheater (4) import by pipeline, reheater (4) outlet is communicated with gas-liquid separator II (6) by pipeline, on the reheater (4) a pair of import and export are set in addition simultaneously, export and import with high temperature heat reservoir II (3) is communicated with respectively, the liquid outlet of gas-liquid separator II (6) is communicated with by the working fluid import of pipeline with secondary ejector (9), the gas outlet of gas-liquid separator II (6) is communicated with two level steam turbines (7) import by pipeline, two level steam turbines (7) outlet is communicated with by the gas inlet of pipeline with injection absorption heat-exchange device (8), (8) first outlets of injection absorption heat-exchange device are communicated with by the suction inlet of pipeline with secondary injection device (9), and secondary ejector (9) outlet is communicated with the import of solution heat exchanger (11) by pipeline and solution pump (10).
- The ammoniacal liquor that drives of temperature difference of seawater according to claim 1 again heat-injection absorb power circulation system, it is characterized in that: on the described injection absorption heat-exchange device (8) a pair of import and export are set in addition, and are communicated with import and the outlet of low temperature heat reservoir (14) by pipeline.
- The ammoniacal liquor that drives of temperature difference of seawater according to claim 1 and 2 again heat-injection absorb power circulation system, it is characterized in that: an end of described injection absorption heat-exchange device (8) is provided with gas inlet, the other end is provided with the first outlet, be communicated with by ejector (18) between gas inlet and the first outlet, ejector (18) is matrix shape and is spaced, the trunnion of ejector (16) outside suit box heat exchanger with flow-stopping plate (15) arranges fin (17) along its length direction interval on the inwall of trunnion (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110004241XA CN102116274B (en) | 2011-01-11 | 2011-01-11 | Ammonia water reheating-injecting power absorption circulation system driven by temperature difference of seawater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110004241XA CN102116274B (en) | 2011-01-11 | 2011-01-11 | Ammonia water reheating-injecting power absorption circulation system driven by temperature difference of seawater |
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| CN102116274A CN102116274A (en) | 2011-07-06 |
| CN102116274B true CN102116274B (en) | 2013-01-16 |
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| CN111912135B (en) * | 2020-07-16 | 2021-10-15 | 南方海洋科学与工程广东省实验室(湛江) | Two-stage injection combined cooling and power supply mixing and circulating system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007240A (en) * | 1987-12-18 | 1991-04-16 | Babcock-Hitachi Kabushiki Kaisha | Hybrid Rankine cycle system |
| CN1109141A (en) * | 1993-09-22 | 1995-09-27 | 佐贺大学 | Thermal power generator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61145305A (en) * | 1984-12-19 | 1986-07-03 | Toshiba Corp | Control device for turbine plant using hot water |
| JPH01155080A (en) * | 1987-12-14 | 1989-06-16 | Yasuo Mori | Multipupose open type ocean thermal energy compound generating method and generating set |
| JP4669964B2 (en) * | 2005-06-28 | 2011-04-13 | 国立大学法人佐賀大学 | Steam power cycle system |
| WO2010137360A1 (en) * | 2009-05-25 | 2010-12-02 | Uehara Haruo | Steam power cycle device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007240A (en) * | 1987-12-18 | 1991-04-16 | Babcock-Hitachi Kabushiki Kaisha | Hybrid Rankine cycle system |
| CN1109141A (en) * | 1993-09-22 | 1995-09-27 | 佐贺大学 | Thermal power generator |
Non-Patent Citations (2)
| Title |
|---|
| JP平1-155080A 1989.06.16 |
| JP昭61-145305A 1986.07.03 |
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