CN203271835U - Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set - Google Patents
Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set Download PDFInfo
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model relates to a Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set. Gas exhausted by a Britten gas turbine is used as a heat source for the steam Rankine-ammonia vapour Rankine combined cycle; a condenser in the steam Rankine cycle is used as an evaporator for the ammonia vapour Rankine cycle; by utilizing the characteristic that an ammonia vapour Rankine cycle system has higher efficiency of utilizing medium and low temperature heat sources, a great quantity of latent heat of vaporization, which is released in the steam condensing process is used for high-efficiency power generation of the ammonia vapour Rankine cycle; over 50KWh per ton of steam more can be recovered on the aspect of only utilizing latent heat of vaporization of steam in the steam Rankine cycle to generate electricity; meanwhile, the difficult problem of safety of recovering waste heat of flue gas in the ammonia vapour Rankine cycle is solved; and the exhaust gas temperature is effectively reduced and low temperature corrosion of the flue gas is avoided. The Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set can be used for energy-saving transformation on an existing unit, also can be used for design and construction of a new unit and has obvious economic, social and environmental-friendly benefits.
Description
Technical field
The present invention relates to a kind of Boulez pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit, specifically belong to the thermal power plant field of power equipment technology.
Background technique
The series of advantages such as combustion gas one Steam Combined Cycle is high because of its thermal efficiency, toggle speed is fast, environmental protection condition good, installation period is short, investment cost is low, add the develop rapidly of gas turbine technology in recent years, the gas turbine single-machine capacity also continues to increase, and combined cycle research has caused attention and the enforcement of countries in the world.
The research of external combined cycle generation technology starts from eighties of last century end of the sixties, development through decades, at present, the combustion gas one steam combined cycle power generating technology of many developed countries such as the U.S., Britain, Japan is comparative maturity, and its power supply efficiency reaches more than 50%.Company is 53% left and right as U.S. CE; ABB AB is 48%～51.9%; Mitsubishi Heavy Industries Ltd are 5l%～52%.Many companies (as U.S. Texco company, Belgian CMI company etc.) all have combined cycle exhaust heat boiler performance design, system optimization, structure optimization, the manufacturing technology of comparative maturity, and have grasped thermodynamic property and the roadability of combined cycle exhaust heat boiler fully.Gas-steam Combined Cycle and at present two-fluid circulation-steam injected gas turbine just under development Cheng's cycle and circulate in the backheat of the blower outlet water-spraying evaporation of gas turbine, the representative of this technical development just, the former is full-fledged, obtained huge economic benefit, both are stepping up among research afterwards, and the existing application example of Cheng's cycle and formal product.
Thermal power plant take water vapor as working medium is to carry out on a large scale heat energy is transformed into mechanical energy, and the factory that transforms mechanical energy into electricity again.The circulation that the power station is used is very complicated, yet in essence, the Rankine cycle that mainly is comprised of equipment such as boiler, steam turbine, vapour condenser, water pumps is completed, its working principle is: feedwater is first sent into boiler after the feed water pump pressurization, water is heated the superheated vapor of vaporization, formation High Temperature High Pressure in boiler, the superheated vapor acting of expanding in steam turbine, become the exhaust steam of low-temp low-pressure, enter at last vapour condenser and be condensed into condensed water, again through water pump, condensed water is sent into boiler and carry out new circulation.The complex loops of using as for the thermal power plant only on the Rankine cycle basis, in order to improve the thermal efficiency, is improved and the new circulation that forms is the backheat circulation, and the medium of backheat is water.Rankine cycle has become the basic circulation of modern steam power plant.
Modern big-and-middle-sized steam power plant all adopts the heated feed water backheat circulation of drawing gas without any exception, employing is drawn gas after the backheat heated feed water, feed temperature is improved, thereby improved the heating mean temperature, except having improved significantly thermal efficiency of cycle, though specific steam consumption increases to some extent, the steam discharge rate is reduced, this is conducive to the internal efficiency ratio η of i.e. this circulation of ratio of actual acting amount and theoretical acting amount
oiRaising, solved simultaneously the difficulty of large steam turbine exhaust stage blade negotiability restriction, the vapour condenser volume also can correspondingly reduce.But still discharge a large amount of latent heats of vaporization when steam condenses in vapour condenser, need a large amount of water or air to carry out cooling, namely wasted heat, caused thermo-pollution, wasted again electric energy, water resources.The a large amount of latent heat of vaporization that discharges when therefore how effectively to utilize steam condensation in vapour condenser is worth further investigation.
Give off a large amount of flue gases in the station boiler production process, wherein the heat of recoverable is a lot.Although this part residual heat resources waste is huge, recycling has larger difficulty, and its main cause is: the quality of (1) waste heat is lower, does not find the method for effectively utilizing; (2) reclaim the waste heat of this part flue gas, often the original thermodynamic system of boiler is made change, have certain risk; (3) thermal balance question is difficult to tissue, is difficult to all directly utilize in inside plants, often needs outwards to seek suitable hot user, and hot user often have fluctuation with heat load, thereby limited the versatility of recovery method.
Gu Wei etc. (present Research and the development trend [J] of low temperature heat energy generating. thermal power engineering .2007.03.Vol.22, No.2.) introduced present Research and the development trend of domestic and international low temperature heat energy generation technology.From the development of low temperature heat energy generation technology research in recent years, research work mainly concentrates on aspects such as the improvement of the research of power cycle working medium and cyclic process and optimal controls.Kalina circulation, ammonia absorption type power refrigeration combined cycle etc. can reach the capacity usage ratio higher than simple cycle in theory.Significant when becoming factor on the affecting of system based on the generating of the low temperature heat energy of Finite-Time Thermodynamics when considering, may realize the maximization that the energy of system utilizes.Improving generating efficiency and environmental protection is the core content of Low Temperature Thermal power technology.Kalina circulation, the ammonia absorption type power refrigeration combined cycle scheduling theory mentioned in literary composition merit attention.
Above-mentionedly mention that card Linne power generation technology also has its intrinsic shortcoming: have inflammable, the explosive characteristics such as poisonous as ammonia, when boiler or industrial furnace back-end ductwork utilize fume afterheat tissue card Linne circulating generation, dust etc. in flue gas must be considered to the leakage that the wearing and tearing that are arranged in the heat exchanger in flue, corrosion etc. cause, the explosion protection of drawing thus and protection of environment and job site etc. must be considered; Card Linne circulation take ammonia water mixture as working medium, the ammonia in ammoniacal liquor is inflammable, explosive, poisonous medium.This is card Linne power generation technology reclaims dust-laden, must solve when the fume afterheat of corrosive deposit is arranged in electric power station system a difficult problem.
Therefore how to utilize the thermomechanics basic law in steam Rankine cycle thermal power plant, use for reference the innovative approach that the combined cycle scheduling theories such as thinking and Rankine-Kalina are organized in compound Rankine cycle, reservation is based on the advantage of the power plant technology of Rankine cycle principle, inquire into new combined cycle theoretical, really find the new way that increases substantially the thermodynamic cycle power plant thermal efficiency, become the difficult point of this area research.
Summary of the invention
the shortcoming that purpose of the present invention exists for solving the technology such as above-mentioned steam Rankine cycle and the circulation of card Linne, proposing a kind of new Boulez pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit, can substitute traditional steam Rankine cycle, Gas-steam Combined Cycle and Cheng's cycle unit, the difficult problem that a large amount of latent heat of vaporization that has discharged when having solved simultaneously steam condensation in the key issue of card Linne cycle machine set safe operation and vapour condenser reclaims, the latent heat of vaporization in the recovered steam Rankine cycle during steam condensation is used for low-temperature end ammonia steam Rankine cycle generating, thereby realize effectively improving the thermal efficiency of whole Combined Cycle Unit, finally reach energy-saving and cost-reducing, improve the purpose of system thermal efficiency.
The objective of the invention is to realize by following measures:
A kind of Boulez pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit, and this device comprises Boulez pause circulation, steam Rankine cycle, the Rankine cycle of ammonia steam, it is characterized in that:
Air 35 is sent into fuel-burning equipment 37 through gas compressor 36, fully burns with the fuel 38 that enters, and the high-temperature flue gas of generation enters gas turbine 39, drags gas turbine powered generator 41 generating, completes the circulation of pausing of gas turbine unit Boulez.
The high-temperature flue gas 40 that described gas turbine 39 is discharged is as the thermal source of steam Rankine cycle system, and high-temperature flue gas 40 is discharged after reducing temperature through exhaust heat boiler body 1, superheater 2, feed water preheater 8, heat exchanger 13.
Described steam Rankine cycle refers to by exhaust heat boiler body 1 saturated vapour 2 out, forms superheated vapor 3-1 through superheater 3, sends into steam turbine 4 and drives steam-driven generator 21 generatings; Steam turbine 4 exhaust steam 5 out enters condenser/evaporator 10 and forms water of condensation 6, and water of condensation 6 is sent into exhaust heat boiler body 1 through condensate pump 6-1, oxygen-eliminating device 7-1, feed water pump 7, feed water preheater 8, then produces saturated vapour, thereby forms steam Rankine cycle loop.
The Rankine cycle of described ammonia steam, refer to that ammoniacal liquor 11 is through recycle pump 12, condenser/evaporator 10, the ammonia steam that produces is through exhaust steam regenerator 22, ammonia steam pipe line 24, superheater 9, form ammonia superheated vapor 16, enter ammonia steam turbine 17 and drag 20 generatings of ammonia generator, the exhaust steam of discharging from ammonia steam turbine 17 is through exhaust steam regenerator 22, the cooling formation ammoniacal liquor 11 of ammonia condenser 18, then enters recycle pump 12, thereby forms ammonia steam Rankine cycle loop.
Described steam Rankine cycle and ammonia steam Rankine cycle loop combine by condenser/evaporator 10, the latent heat of vaporization that in the Rankine cycle of high efficiente callback steam, steam condensation discharges is used for low-temperature end ammonia steam Rankine cycle generating, and the steam condensation side of described steam Rankine cycle is negative pressure.
The 4-1 that draws gas that described superheater 9 adopts steam turbine 4 in the steam Rankine cycle is as thermal source, and the 4-1 that draws gas returns to the steam Rankine cycle system through the cooling formation condensed water 26 of superheater 9.
Described ammoniacal liquor 11 is the ammonia of one-component, or take ammonia as low boiling component, high boiling component is mixed solution such as ammonia-aqueous solution, ammonia-sodium thiocyanate solution or the ammonia-calcium chloride solution etc. of absorbing agent.
When described ammoniacal liquor is Multi component, be provided with regenerator 15: ammoniacal liquor 11 is through recycle pump 12, regenerator 15, condenser/evaporator 10, the lean solution that forms is returned to ammonia condenser 18 through regenerator 15, the pipeline 19 that backflows, the ammonia steam that produces forms ammoniacal liquor 11 through exhaust steam regenerator 22, superheater 9, ammonia steam turbine 17, ammonia condenser 18, return recycle pump 12, thereby form ammonia steam Rankine cycle loop.
Be provided with heat exchanger 13: when heat exchanger 13 is phase-change heat-exchanger, comprise vaporizer 13-1, condenser 13-2, wherein vaporizer 13-1 is arranged in flue 23, and condenser 13-2 is arranged in outside flue 23, and phase-change working substance adopts water or other suitable materials; Flue gas adopts the separated type heat exchange mode by phase-change working substance and the condenser/evaporator 10 ammonia steam out of phase-change heat-exchanger: phase-change working substance absorbs the heat generation saturated vapour of flue gas in vaporizer 13-1, saturated vapour is as the thermal source of ammonia steam, by condenser 13-2 and ammonia steam wall-type heat exchange, cooling rear formation condensation water produces steam again by the heat of vaporizer 13-1 absorption flue gas again, thereby forms the interior circulation loop of phase-change working substance; Phase-change working substance adopts natural circulation or pump circulation mode; The ammonia steam of condenser/evaporator 10 outlets is through the condenser 13-2 of ammonia steam pipe line 25, heat exchanger 13, the ammonia superheated vapor 16 that forms enters ammonia steam turbine 17, get back to condenser/evaporator 10 through exhaust steam regenerator 22, ammonia condenser 18, recycle pump 12 again, thus ammonia steam Rankine cycle loop.
Be provided with ammoniacal liquor vaporizer 14: ammoniacal liquor vaporizer 14 adopts the exhaust steam of ammonia steam turbine 17 outlets as thermal source, the ammonia steam that produces is through exhaust steam regenerator 22, superheater 9, ammonia steam turbine 17, drag 20 generatings of ammonia generator, the exhaust steam that ammonia steam turbine 17 is discharged is through exhaust steam regenerator 22, ammoniacal liquor vaporizer 14, the cooling formation ammoniacal liquor 11 of ammonia condenser 18, enter again recycle pump 12, ammoniacal liquor vaporizer 14, thereby form ammonia steam Rankine cycle loop; As when being the multicomponent ammoniacal liquor, the lean solution that ammoniacal liquor vaporizer 14 produces is got back to ammonia condenser 18 through the pipeline 27 that backflows, condenser/evaporator 10, regenerator 15, the pipeline 19 that backflows.
Described feed water preheater 8, superheater 9, condenser/evaporator 10, regenerator 15, heat exchanger 13, ammoniacal liquor vaporizer 14, exhaust steam regenerator 22 can arrange respectively one or more, adopt series, parallel or series-parallel connection mode to connect.
Described ammonia condenser 18 arranges according to routine techniques, adopts water or air etc. as cooling medium.
In the present invention, the heat-exchanging element of mentioned aforementioned device can adopt tubulation, fin tube, coiler or spiral groove pipe, or adopts the pipe of other augmentation of heat transfer measures or the hollow cavity heat-exchanging element of other patterns.
Control a little higher than flue gas acid dew point temperature of wall surface temperature of vaporizer 13-1 heat exchanger surface, or the cold end corrosion of adopting corrosion-resistant material effectively to alleviate flue gas, can effectively reduce temperature of exhaust fume, when avoiding the flue gas low-temperature corrosion, the high efficiente callback fume afterheat.
Unaccounted equipment and standby system thereof, pipeline, instrument, valve in the present invention, be incubated, have the known mature technologies of employing such as regulatory function bypass facility and carry out supporting.
When the gas turbine in the present invention becomes other pneumatic motors such as internal-combustion engine, Stirling-electric hybrid, can form equally Otto circulation-steam Rankine-ammonia steam Rankine combined cycle, Stirling circulation-steam Rankine-electricity generating devices such as ammonia steam Rankine combined cycle.
Be provided with the regulating controller with system support of the present invention, the known Mature Regulation technology of the existing steam Rankine cycle of employing power station, Cheng's cycle power station or gas-steam combined cycle power plant is carried out supporting, make steam Rankine-Ka Linne combined cycle generating unit energy economy, safety, high thermal efficiency operation, reach energy-saving and cost-reducing purpose.
The present invention has following advantage compared to existing technology:
1, energy-saving effect is remarkable: the Boulez of the present invention's design pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit, with the vapour condenser of the steam Rankine cycle vaporizer as the Rankine cycle of ammonia steam, utilize the utilization of ammonia steam Rankine cycle system centering low-temperature heat source that more high efficiency characteristics are arranged, a large amount of latent heats of vaporization that steam Rankine cycle steam condensation is discharged are used for ammonia steam Rankine cycle efficiency power generation, only utilize the latent heat of vaporization of steam just 50 degree/more than ton steam nearly of this piece that generate electricity; The absolute amplitude that vapour condenser in the Rankine cycle of ammonia steam in the more traditional steam Rankine cycle of ammonia condenser load alleviates reaches more than 15%, and the power consumption of cooling circulating water significantly reduces.
2, the three wastes of power plant are realized integrated utilization: when the heat exchanger that back-end ductwork arranges adopts phase-change heat-exchanger, waste heat that can the high efficiente callback flue gas, temperature of exhaust fume can be reduced to 120 ℃ of left and right, when the phase-change heat-exchanger vaporizer adopts resistant material, temperature of exhaust fume can reduce more, reach 85 ℃ of left and right, operation to system for desulfuration and denitration is very favourable, when effectively avoiding the flue gas low-temperature corrosion, the heat that reclaims is used for ammonia steam Rankine cycle system efficiency power generation, more meets the cascaded utilization of energy principle.The waste heats such as the waste water that the steam Rankine cycle system produces, waste vapour all can be included ammonia steam Rankine cycle system in and recycle.Fundamentally eliminated other waste gas, waste water, waste vapour waste heat recovering device to the impact of whole unit circulation system, realized the integrated utilization of the real meaning of whole power plant system waste heat, water saving, joint vapour, economize on electricity texts are obvious.
3, drawing gas as the thermal source of steam in the Rankine cycle of ammonia steam of employing steam turbine further reclaimed sensible heat, the latent heat of vaporization of drawing gas and is used for ammonia steam Rankine cycle generating, and the benefit of whole Combined Cycle Unit is further improved.
4, the solution of the present invention both can be used for design, the construction of newly-built combined power plants system, also can be used for existing pure condensate formula, sucking condensing type unit are carried out reducing energy consumption, thermodynamic cycle to existing unit does not have a negative impact, energy is the energy-saving potential of excavating device fully, meet simultaneously the industrial policy of country, economy and environmental benefit are remarkable.
Description of drawings
Fig. 1 is that a kind of Boulez of the present invention pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit schematic flow sheet.
in Fig. 1: 1-exhaust heat boiler body, the 2-saturated vapour, the 3-superheater, the 3-1-superheated vapor, the 4-steam turbine, 4-1-draws gas, the 5-exhaust steam, the 6-water of condensation, the 6-1-condensate pump, the 7-feed water pump, the 7-1-oxygen-eliminating device, the 8-feed water preheater, the 9-superheater, the 10-condenser/evaporator, the 11-ammoniacal liquor, the 12-recycle pump, the 13-heat exchanger, the 13-1-vaporizer, the 13-2-condenser, 14-ammoniacal liquor vaporizer, the 15-regenerator, 16-ammonia superheated vapor, 17-ammonia steam turbine, the 18-ammonia condenser, the 19-liquid that backflows, 20-ammonia generator, the 21-steam-driven generator, 22-exhaust steam regenerator, the 23-flue, 24-ammonia steam pipe line, 25-ammonia steam pipe line, the 26-water of condensation, the 27-pipeline that backflows, the 35-air, the 36-gas compressor, the 37-fuel-burning equipment, 38-fuel, the 39-gas turbine, the 40-high-temperature flue gas, the 41-generator.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of Boulez pauses-steam Rankine-ammonia steam Rankine Rankine combined cycle generating unit, and this device comprises Boulez pause circulation, steam Rankine cycle, ammonia steam Rankine cycle system, and specific embodiment is as follows:
Air 35 is sent into fuel-burning equipment 37 through gas compressor 36, fully burns with the fuel 38 that enters, and the high-temperature flue gas of generation enters gas turbine 39, drags gas turbine powered generator 41 generating, completes the circulation of pausing of gas turbine unit Boulez.
The high-temperature flue gas 40 that described gas turbine 39 is discharged is as the thermal source of steam Rankine cycle system, and high-temperature flue gas 40 is discharged after reducing temperature through exhaust heat boiler body 1, superheater 2, feed water preheater 8, vaporizer 13-1.
Described steam Rankine cycle refers to by exhaust heat boiler body 1 saturated vapour 2 out, forms superheated vapor 3-1 through superheater 3, sends into steam turbine 4 and drives steam-driven generator 21 generatings; Steam turbine 4 exhaust steam 5 out enters condenser/evaporator 10 and forms water of condensation 6, and water of condensation 6 is sent into exhaust heat boiler body 1 through condensate pump 6-1, oxygen-eliminating device 7-1, feed water pump 7, feed water preheater 8, then produces saturated vapour, thereby forms steam Rankine cycle loop.
The Rankine cycle of described ammonia steam, refer to that ammoniacal liquor 11 is through recycle pump 12, regenerator 15, condenser/evaporator 10, the lean solution that forms is returned to ammonia condenser 18 through regenerator 15, the pipeline 19 that backflows, the ammonia steam that produces is through exhaust steam regenerator 22, superheater 9, ammonia steam turbine 17, the exhaust steam of discharging from ammonia steam turbine 17 forms ammoniacal liquor 11 through exhaust steam regenerator 22, ammonia condenser 18, return recycle pump 12, thereby form ammonia steam Rankine cycle loop;
Or ammoniacal liquor 11 is through recycle pump 12, condenser/evaporator 10, the ammonia steam that produces enters heat exchanger 13 through ammonia steam pipe line 25, form ammonia superheated vapor 16, enter ammonia steam turbine 17 and drag 20 generatings of ammonia generator, the exhaust steam of discharging from ammonia steam turbine 17 is through the cooling formation ammoniacal liquor 11 of ammonia condenser 18, enter again recycle pump 12, thereby form ammonia steam Rankine cycle loop;
Described steam Rankine cycle and ammonia steam Rankine cycle loop combine by condenser/evaporator 10, the latent heat of vaporization that in the Rankine cycle of high efficiente callback steam, steam condensation discharges is used for low-temperature end ammonia steam Rankine cycle generating, and the steam condensation side of described steam Rankine cycle is negative pressure.
The 4-1 that draws gas that described superheater 9 adopts steam turbine 4 in the steam Rankine cycle is as thermal source, and the 4-1 that draws gas returns to the steam Rankine cycle system through the cooling formation condensed water 26 of superheater 9.
When described heat exchanger 13 is phase-change heat-exchanger, comprise vaporizer 13-1, condenser 13-2, wherein vaporizer 13-1 is arranged in flue 23, and condenser 13-2 is arranged in outside flue 23, and phase-change working substance adopts water; Flue gas adopts the separated type heat exchange mode by phase-change working substance and the condenser/evaporator 10 ammonia steam out of phase-change heat-exchanger 13: phase-change working substance absorbs the heat generation saturated vapour of flue gas in vaporizer 13-1, saturated vapour is as the thermal source of ammonia steam, by condenser 13-2 and ammonia steam wall-type heat exchange, cooling rear formation condensation water produces steam again by the heat of vaporizer 13-1 absorption flue gas again, thereby forms the interior circulation loop of phase-change working substance; Phase-change working substance adopts natural circulation mode; The ammonia steam of condenser/evaporator 10 outlet shuntings place is through the condenser 13-2 of ammonia steam pipe line 25, heat exchanger 13, the ammonia steam that forms enters ammonia steam turbine 17 through superheater 9, get back to condenser/evaporator 10 through exhaust steam regenerator 22, ammonia condenser 18, recycle pump 12 again, thereby form ammonia steam Rankine cycle loop.
Be provided with ammoniacal liquor vaporizer 14: ammoniacal liquor vaporizer 14 adopts the exhaust steam of ammonia steam turbine 17 outlets as thermal source, the ammonia steam that produces is through exhaust steam regenerator 22, superheater 9, ammonia steam turbine 17, drag 20 generatings of ammonia generator, the exhaust steam that ammonia steam turbine 17 is discharged is through exhaust steam regenerator 22, ammoniacal liquor vaporizer 14, the cooling formation ammoniacal liquor 11 of ammonia condenser 18, enter again recycle pump 12, ammoniacal liquor vaporizer 14, thereby form ammonia steam Rankine cycle loop; The lean solution that ammoniacal liquor vaporizer 14 produces is got back to ammonia condenser 18 through the pipeline 27 that backflows, condenser/evaporator 10, regenerator 15, the pipeline 19 that backflows.
Described feed water preheater 8, superheater 9, condenser/evaporator 10, regenerator 15, heat exchanger 13, ammoniacal liquor vaporizer 14, exhaust steam regenerator 22 can arrange respectively one or more, adopt series, parallel or series-parallel connection mode to connect.
Described ammonia condenser 18 arranges according to routine techniques, adopts water or air etc. as cooling medium.
In the present invention, the heat-exchanging element of mentioned aforementioned device can adopt tubulation, fin tube, coiler or spiral groove pipe, or adopts the pipe of other augmentation of heat transfer measures or the hollow cavity heat-exchanging element of other patterns.
Control a little higher than flue gas acid dew point temperature of wall surface temperature of vaporizer 13-1 heat exchanger surface, or the cold end corrosion of adopting corrosion-resistant material effectively to alleviate flue gas, can effectively reduce temperature of exhaust fume, when avoiding the flue gas low-temperature corrosion, the high efficiente callback fume afterheat.
Unaccounted equipment and standby system thereof, pipeline, instrument, valve in the present invention, be incubated, have the known mature technologies of employing such as regulatory function bypass facility and carry out supporting.
Be provided with the regulating controller with system support of the present invention, the known Mature Regulation technology of the existing steam Rankine cycle of employing power station, Cheng's cycle power station or gas-steam combined cycle power plant is carried out supporting, make steam Rankine-organic Rankine combined cycle generating unit energy economy, safety, high thermal efficiency operation, reach energy-saving and cost-reducing purpose.
Although the present invention with preferred embodiment openly as above, they are not to limit the present invention, anyly are familiar with this skill person, without departing from the spirit and scope of the invention, certainly when making various changes or retouch, belong to equally the present invention's protection domain.Therefore protection scope of the present invention should with the application claim was defined is as the criterion.
Claims (8)
1. a Boulez pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit, and this device comprises Boulez pause circulation, steam Rankine cycle and ammonia steam Rankine cycle system, it is characterized in that:
Air (35) is sent into fuel-burning equipment (37) through gas compressor (36), with fully burning of the fuel that enters (38), the high-temperature flue gas that generates enters gas turbine (39), drags gas turbine powered generator (41) generating, completes the circulation of pausing of gas turbine unit Boulez; The high-temperature flue gas (40) that gas turbine (39) is discharged is as the thermal source of steam Rankine cycle system, and high-temperature flue gas (40) is discharged after cooling;
Described steam Rankine cycle refers to by exhaust heat boiler body (1) saturated vapour (2) out, forms superheated vapor (3-1) through superheater (3), sends into steam turbine (4) and drives steam-driven generator (21) generating; Steam turbine (4) exhaust steam (5) out forms water of condensation (6) through condenser/evaporator (10), water of condensation (6) is through feed water pump (7), exhaust heat boiler body (1), produce again saturated vapour, thereby form steam Rankine cycle loop;
The Rankine cycle of described ammonia steam, refer to that ammoniacal liquor (11) is through recycle pump (12), condenser/evaporator (10), the ammonia steam that produces enters superheater (9) through ammonia steam pipe line (24), form ammonia superheated vapor (16), enter ammonia steam turbine (17) and drag ammonia generator (20) generating, the exhaust steam of discharging from ammonia steam turbine (17) is through the cooling formation ammoniacal liquor of ammonia condenser (18) (11), enter again recycle pump (12), thereby form ammonia steam Rankine cycle loop; Or ammoniacal liquor (11) is through recycle pump (12), condenser/evaporator (10), the ammonia steam that produces enters heat exchanger (13) through ammonia steam pipe line (25), form ammonia superheated vapor (16), enter ammonia steam turbine (17) and drag ammonia generator (20) generating, the exhaust steam of discharging from ammonia steam turbine (17) is through the cooling formation ammoniacal liquor of ammonia condenser (18) (11), enter again recycle pump (12), thereby form ammonia steam Rankine cycle loop;
Draw gas (4-1) of described steam turbine (4) forms condensed water (26) through superheater (9), returns to the steam Rankine cycle system;
Described steam Rankine cycle and ammonia steam Rankine cycle loop combine by condenser/evaporator (10), and the latent heat of vaporization that in the Rankine cycle of high efficiente callback steam, steam condensation discharges is used for low-temperature end ammonia steam Rankine cycle generating.
2. device according to claim 1 is characterized in that:
Be provided with feed water preheater (8):
By exhaust heat boiler body (1) saturated vapour (2) out, form superheated vapor (3-1) through superheater (3), send into steam turbine (4) and drive steam-driven generator (21) generating; Steam turbine (4) exhaust steam (5) out forms water of condensation (6) through condenser/evaporator (10), water of condensation (6) is through feed water pump (7), feed water preheater (8), exhaust heat boiler body (1), produce again saturated vapour, thereby form steam Rankine cycle loop.
3. device according to claim 1 is characterized in that:
Be provided with oxygen-eliminating device (7-1):
By exhaust heat boiler body (1) saturated vapour (2) out, form superheated vapor (3-1) through superheater (3), send into steam turbine (4) and drive steam-driven generator (21) generating; Steam turbine (4) exhaust steam (5) out forms water of condensation (6) through condenser/evaporator (10), water of condensation (6) is through condensate pump (6-1), oxygen-eliminating device (7-1), feed water pump (7), exhaust heat boiler body (1), produce again saturated vapour, thereby form steam Rankine cycle loop.
4. device according to claim 1 is characterized in that:
Be provided with exhaust steam regenerator (22):
Ammoniacal liquor (11) is through recycle pump (12), condenser/evaporator (10), the ammonia steam that produces enters superheater (9) through exhaust steam regenerator (22), ammonia steam pipe line (24), form ammonia superheated vapor (16), enter ammonia steam turbine (17) and drag ammonia generator (20) generating, the exhaust steam of discharging from ammonia steam turbine (17) is through the cooling formation ammoniacal liquor of ammonia condenser (18) (11), enter again recycle pump (12), thereby form ammonia steam Rankine cycle loop.
5. device according to claim 1 is characterized in that:
Be provided with ammoniacal liquor vaporizer (14):
Ammoniacal liquor (11) through recycle pump (12), ammoniacal liquor vaporizer (14) or and exhaust steam regenerator (22), ammonia steam pipe line (24), superheater (9), enter ammonia steam turbine (17) and drag ammonia generator (20) generating, the exhaust steam that ammonia steam turbine (17) is discharged is through exhaust steam regenerator (22), ammoniacal liquor vaporizer (14), the cooling formation ammoniacal liquor of ammonia condenser (18) (11), enter again recycle pump (12), ammoniacal liquor vaporizer (14), thereby form ammonia steam Rankine cycle loop.
One of according to claim 1 to 5 described device, it is characterized in that:
Described heat exchanger (13) is phase-change heat-exchanger, comprise vaporizer (13-1), condenser (13-2), wherein vaporizer (13-1) is arranged in flue (23), and condenser (13-2) is arranged in outside flue (23); Flue gas adopts the separated type heat exchange mode by phase-change working substance and condenser/evaporator (10) ammonia steam out: phase-change working substance absorbs the heat generation saturated vapour of flue gas in vaporizer (13-1), saturated vapour is as the thermal source of ammonia steam, by condenser (13-2) and ammonia steam wall-type heat exchange, cooling rear formation condensation water is absorbed the heat generation steam of flue gas again by vaporizer (13-1), thereby forms the interior circulation loop of phase-change working substance; The ammonia steam that condenser/evaporator (10) outlet distributes is through ammonia steam pipe line (25), condenser (13-2), the ammonia superheated vapor (16) that forms enters ammonia steam turbine (17), get back to condenser/evaporator (10) through ammonia condenser (18), recycle pump (12) again, thereby form ammonia steam Rankine cycle loop.
One of according to claim 1 to 5 described device, it is characterized in that:
Be provided with regenerator (15):
ammoniacal liquor (11) is through recycle pump (12), regenerator (15), condenser/evaporator (10), the lean solution that forms is through regenerator (15), the pipeline (19) that backflows returns to ammonia condenser (18), or the lean solution that ammoniacal liquor vaporizer (14) produces is through the pipeline that backflows (27), condenser/evaporator (10), regenerator (15), the pipeline (19) that backflows is got back to ammonia condenser (18), condenser/evaporator (10), the ammonia steam that ammoniacal liquor vaporizer (14) produces is through superheater (9) or heat exchanger (13), the ammonia superheated vapor (16) that forms is through ammonia steam turbine (17), ammonia condenser (18) forms ammoniacal liquor (11), return recycle pump (12), thereby formation ammonia steam Rankine cycle loop.
8. device according to claim 7 is characterized in that:
Described superheater (3), feed water preheater (8), superheater (9), condenser/evaporator (10), heat exchanger (13), ammoniacal liquor vaporizer (14), regenerator (15), exhaust steam regenerator (22) can arrange respectively one or more, adopt series, parallel or series-parallel connection mode to connect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320042182XU CN203271835U (en) | 2013-01-27 | 2013-01-27 | Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set |
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| CN201320042182XU CN203271835U (en) | 2013-01-27 | 2013-01-27 | Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set |
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| CN203271835U true CN203271835U (en) | 2013-11-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147809A (en) * | 2013-01-27 | 2013-06-12 | 南京瑞柯徕姆环保科技有限公司 | Britten-steam Rankine-ammonia steam Rankine combined circulation electricity generation device |
| CN104653420A (en) * | 2015-02-09 | 2015-05-27 | 南京瑞柯徕姆环保科技有限公司 | Tower solar thermal power generation method and system using closed Brayton cycle |
| CN104653419A (en) * | 2015-02-09 | 2015-05-27 | 南京瑞柯徕姆环保科技有限公司 | Closed Brayton tower solar thermal power generation method and system |
| CN105649694A (en) * | 2016-02-01 | 2016-06-08 | 上海汉钟精机股份有限公司 | Gas steam back-pressure cooling four-grade utilization electricity and water cold and hot steam heating system |
| CN113202638A (en) * | 2021-05-27 | 2021-08-03 | 哈尔滨工程大学 | Near-zero emission liquid ammonia-diesel dual-fuel supply system |
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2013
- 2013-01-27 CN CN201320042182XU patent/CN203271835U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147809A (en) * | 2013-01-27 | 2013-06-12 | 南京瑞柯徕姆环保科技有限公司 | Britten-steam Rankine-ammonia steam Rankine combined circulation electricity generation device |
| CN103147809B (en) * | 2013-01-27 | 2015-11-11 | 南京瑞柯徕姆环保科技有限公司 | Boulez pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit |
| CN104653420A (en) * | 2015-02-09 | 2015-05-27 | 南京瑞柯徕姆环保科技有限公司 | Tower solar thermal power generation method and system using closed Brayton cycle |
| CN104653419A (en) * | 2015-02-09 | 2015-05-27 | 南京瑞柯徕姆环保科技有限公司 | Closed Brayton tower solar thermal power generation method and system |
| CN105649694A (en) * | 2016-02-01 | 2016-06-08 | 上海汉钟精机股份有限公司 | Gas steam back-pressure cooling four-grade utilization electricity and water cold and hot steam heating system |
| CN105649694B (en) * | 2016-02-01 | 2023-10-17 | 上海汉钟精机股份有限公司 | Four-stage electric water-cooling heat-and-steam heating system for back pressure cooling of fuel gas steam |
| CN113202638A (en) * | 2021-05-27 | 2021-08-03 | 哈尔滨工程大学 | Near-zero emission liquid ammonia-diesel dual-fuel supply system |
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