CN203035350U - Britten-hybrid combined steam rankine cycle power generation device - Google Patents
Britten-hybrid combined steam rankine cycle power generation device Download PDFInfo
- Publication number
- CN203035350U CN203035350U CN2013200421764U CN201320042176U CN203035350U CN 203035350 U CN203035350 U CN 203035350U CN 2013200421764 U CN2013200421764 U CN 2013200421764U CN 201320042176 U CN201320042176 U CN 201320042176U CN 203035350 U CN203035350 U CN 203035350U
- Authority
- CN
- China
- Prior art keywords
- low
- steam
- pressure
- voltage terminal
- rankine cycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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]
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to a britten-hybrid steam rankine combined cycle power generation device. Exhaust gas adopting a britten cycle is used as a heat source of a steam combined steam rankine cycle system, the steam rankine cycle at a high-pressure end and the steam rankine cycle at a low-pressure end are directly combined by a hybrid steam rankine combined cycle through a low-pressure steam generator 5, vaporized latent heat released in steam exhaust of a steam rankine cycle turbine at the high-temperature end is entirely utilized for steam rankine cycle power generation at the low-temperature end, so that the load of a condenser of the conventional steam rankine cycle system can be effectively lightened by more than 20%. By adopting the system optimization technology, the absolute thermal efficiency of the cycle of the whole system can be improved by more than 5%. The britten-hybrid steam rankine combined cycle power generation device can be used for energy-saving transformation of the existing unit, and can also be used for the design and the construction of newly-constructed units, and is obvious in economic, social and environment-friendly benefits.
Description
Technical field
The present invention relates to a kind of Boulez pauses-hybrid steam Rankine combined cycle generating unit, specifically belong to the thermal power plant field of power equipment technology.
Background technique
Combustion gas one Steam Combined Cycle is because of its thermal efficiency height, series of advantages such as 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.
External combined cycle generation Study on 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%.Be about 53% as U.S. CE company; 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 on top of thermodynamic property and the roadability of combined cycle exhaust heat boiler.The Cheng Shi circulation of gas-steam combined circulation and two-fluid circulation-gas turbine steam injection at present just under development 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 the back among the research, and the existing application example of Cheng Shi circulation and formal product.
Being the thermal power plant of working medium with the water vapor, 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, mainly the Rankine cycle of being made up of equipment such as boiler, steam turbine, vapour condenser, water pumps is finished, its working principle is: feedwater is sent into boiler earlier 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 in steam turbine, expanding, become the exhaust steam of low-temp low-pressure, enter vapour condenser at last and be condensed into condensed water, through water pump condensed water is sent into boiler again 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 backheat circulation, thermal cycle etc. again, and Rankine cycle has become the basic circulation of modern steam power plant.
Modern big-and-middle-sized steam power plant all adopts the draw gas circulation of heated feed water backheat, steam thermal cycle technology more without any exception, thereby improved the heating mean temperature, except having improved thermal efficiency of cycle significantly, though specific steam consumption increases to some extent, but owing to draw gas step by step 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 the difficulty of large steam turbine exhaust stage blade negotiability restriction simultaneously, 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 cool off, namely wasted heat, caused thermo-pollution, wasted electric energy, water resources again.Therefore how effectively to utilize a large amount of latent heat of vaporization that discharges when steam condenses in the vapour condenser, be worth further investigation.
Give off a large amount of flue gases in the station boiler production process, wherein the heat of recyclable utilization is a lot.Though this part residual heat resources waste is huge, recycling has bigger difficulty, and its main cause is: the quality of (1) waste heat is lower, does not find the method for effectively utilizing; (2) reclaim this part waste heat, often the original thermodynamic system of boiler is made bigger 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.
Therefore how to utilize the thermomechanics basic law in steam Rankine cycle thermal power plant, reservation is based on the advantage of the power plant technology of Rankine cycle principle, inquire into new combined cycle theory, really find the new way that increases substantially the steam Rankine-cycle power system thermal efficiency, become the difficult point of this area research.
Summary of the invention
Purpose of the present invention is for solving the problem that above-mentioned steam Rankine cycle exists, a kind of new thermal power plant's combined cycle flow process is proposed, be that Boulez pauses-superposition type steam Rankine combined cycle generating unit, can be in the advantage that keeps traditional steam Rankine cycle thermal cycle technology again, reclaim the latent heat of vaporization of traditional steam Rankine cycle vapour condenser significantly, the load of traditional Rankine cycle vapour condenser is alleviated significantly, the absolute amplitude value that alleviates can reach 20%, 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 measure:
A kind of Boulez pauses-hybrid steam Rankine combined cycle generating unit, and this device comprises Boulez pause circulation, the Rankine cycle of high voltage terminal steam and the Rankine cycle of low voltage terminal steam, it is characterized in that:
Air 23 is sent into fuel-burning equipment 25 through gas compressor 24, fully burns with the fuel 28 that enters, and the high-temperature flue gas of generation enters gas turbine 26, drags gas turbine powered generator 29 generating, finishes the circulation of pausing of gas turbine unit Boulez.
The high-temperature flue gas 27 that described gas turbine 26 is discharged is as the thermal source of hybrid steam Rankine cycle system, and high-temperature flue gas 27 is discharged after exhaust heat boiler body 1, low-pressure superheater 15, high-pressure superheater 3, high-pressure feed-water heater 8, low-pressure feed heater 11 coolings along flue 20.
The Rankine cycle of described high voltage terminal steam refers to the saturated vapour 2 that come out by exhaust heat boiler body 1, forms high pressure superheated steam 3-1 through high-pressure superheater 3, sends into high-pressure turbine 4 and drives generators 19 generatings; The exhaust steam 4-1 that high-pressure turbine 4 comes out directly mixes generation saturated vapour 5-1 with the feedwater of low voltage terminal steam Rankine cycle in low-pressure steam generator 5, the condensed water 6 that forms is sent into high-pressure feed-water heater 8, exhaust heat boiler body 1 through high pressure water pump 7, exhaust heat boiler body 1 produces saturated vapour again, thereby forms high voltage terminal steam Rankine cycle loop.
The Rankine cycle of described low voltage terminal steam, refer to that low-pressure steam generator 5 adopts the steam discharge 4-1 of high voltage terminal steam Rankine cycle as thermal source, produce low-pressure saturated steam 5-1 with feed water direct Hybrid Heating of low voltage terminal, form low-pressure superheated steam 16 through low-pressure superheater 15, send into low-pressure turbine 17 and drive generator 19 generatings; The exhaust steam that low-pressure turbine 17 comes out condenses into low voltage terminal water of condensation 9 at low pressure vapour condenser 18, water of condensation 9 is through condensate pump 10, low-pressure feed heater 11, oxygen-eliminating device 12, low pressure feed water pump 13, secondary low-pressure feed heater 14, send into low-pressure steam generator 5, low-pressure steam generator 5 produces steam 5-1 again, thereby forms low voltage terminal steam Rankine cycle loop.
Described low-pressure steam generator 5 adopts the operation under positive pressure modes, i.e. the pressure of high-pressure turbine 4 exhaust steam of coming out is higher than atmospheric pressure.
The Rankine cycle of described high voltage terminal steam and the Rankine cycle of low voltage terminal steam directly combine by low-pressure steam generator 5, the latent heat of vaporization that discharges during the steam condensation of high efficiente callback temperature end steam Rankine cycle is used for low-temperature end steam Rankine cycle generating, the low-pressure superheater technology that adopts, receive the advantage of thermal cycle technology again, therefore can significantly improve the thermal efficiency of whole circulation.
The high-temperature flue gas that fuel combustion produces enters atmosphere after boiler body 1, low-pressure superheater 15, high-pressure superheater 3, high-pressure feed-water heater 8, secondary low-pressure feed heater 14, low-pressure feed heater 11 coolings; Or after boiler body 1, high-pressure superheater 3, low-pressure superheater 15, high-pressure feed-water heater 8, secondary low-pressure feed heater 14, low-pressure feed heater 11 coolings, enter atmosphere.
When described low-pressure feed heater 11 adopted the separated type heat exchange mode with flue gas, low-pressure feed heater was compound phase change heat exchanger, comprises vaporizer 11-1, condenser 11-2, and vaporizer 11-1 and condenser adopt the structure of split type or integral type; Phase-change working substance wherein adopts water or other suitable materials; Phase-change working substance absorbs flue gas in vaporizer 11-1 heat produces saturated vapour, saturated vapour is by condenser 11-2 and low voltage terminal water of condensation 9 wall-type heat exchanges, the cooling back forms condensation water and is absorbed the heat generation steam of flue gas again by vaporizer 11-1, thereby forms the inner cyclic process of phase-change working substance; Phase-change working substance adopts natural circulation or pump circulation mode; Preferable methods is the split type layout of vaporizer, condenser, and namely vaporizer 11-1 is arranged in the flue 20, condenser 11-2 is arranged in outside the flue, and phase-change working substance adopts water, adopts natural circulation mode.
Described high-pressure feed-water heater 8, low pressure steam vaporizer 5, low-pressure feed heater 14, low-pressure feed heater 11, high-pressure superheater 3, low-pressure superheater 15 can arrange one or more respectively, adopt series, parallel or series-parallel connection mode to connect.
Described low voltage terminal vapour condenser 18 arranges according to routine techniques, adopts water or air etc. as cooling medium.
The heat-exchanging element of mentioned aforementioned device can adopt tubulation, fin tube, coiler or spiral groove pipe among the present invention, or adopts the pipe of other augmentation of heat transfer measures or the hollow cavity heat-exchanging element of other patterns.
The a little higher than flue gas acid dew point temperature of wall surface temperature of the vaporizer 11-1 heat exchanger surface of control low-pressure feed heater 11, or the cold end corrosion of adopting corrosion-resistant material effectively to alleviate flue gas, can effectively reduce temperature of exhaust fume, avoid flue gas low-temperature corrosion time, the high efficiente callback fume afterheat.
Unaccounted equipment and standby system thereof, pipeline, instrument, valve among 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 safety, regulating controller with system support of the present invention, adopt the known ripe control technique of existing steam Rankine cycle power station, Cheng Shi cycle power plant or gas-steam combined cycle power plant to carry out supporting, make hybrid steam Rankine combined cycle generating unit energy economy, safety, high thermal efficiency operation, reach energy saving purposes.
The present invention has following advantage compared to existing technology:
1, the Boulez of the present invention's design pauses-hybrid steam Rankine combined cycle generating unit, being different from traditional Boulez pauses-steam Rankine combined cycle system, the low-pressure steam generator of high voltage terminal steam Rankine cycle adopts the operation under positive pressure mode, with the steam discharge of the high-pressure turbine thermal source as the steam generator of low voltage terminal steam Rankine cycle, directly the feedwater with the Rankine cycle of low voltage terminal steam mixes the generation low pressure steam, thereby the Rankine cycle of high voltage terminal steam and the Rankine cycle of low voltage terminal steam are combined by low-pressure steam generator is ingenious, the latent heat of vaporization of steam all is utilized effectively in the Rankine cycle of high voltage terminal steam, compare the load with the low voltage terminal vapour condenser of the unit of generated output, the absolute amplitude value that the load of vapour condenser alleviates can reach 20%, and the absolute efficiency value of whole system circulation improves more than 2% at least; Because the back pressure employing malleation mode of high voltage terminal steam Rankine cycle steam turbine is moved, high-pressure turbine outlet exhaust steam can guarantee certain degree of superheat, under the constant situation of high voltage terminal superheat steam temperature, can further improve thermal efficiency of cycle more than 2% by the method for suitable raising high voltage terminal steam first pressing.Adopt the system optimization technology, the absolute amplitude value that the efficient of combined cycle system improves can reach more than 5%.
2, the fume afterheat of power plant is realized the high efficiente callback 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 about 120 ℃, when the phase-change heat-exchanger vaporizer adopts resistant material, temperature of exhaust fume can reduce more, reach about 85 ℃, 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 Rankine cycle system and efficiently generates electricity, and more meets the cascaded utilization of energy principle.
3, safety in operation obviously improves:
The high-pressure steam turbine operation under positive pressure of high voltage terminal steam Rankine cycle, outlet steam is superheated vapor, the operating conditions of steam turbine is optimized; Low-pressure superheater in the Rankine cycle of low voltage terminal steam, because pressure is lower, safety in operation improves; Superheated vapor is adopted in the admission of low-pressure turbine, traditional advantage of thermal cycle again is not fully exerted, can effectively solve last stage vane of steam turbine brings because of wet vapor in traditional steam Rankine cycle problem design, manufacturing and operation problem, obviously improve before the vibration of steam turbine generator set.
4, the solution of the present invention both can be used for design, the construction of newly-built power plant system, also can be used for existing Boulez is paused-reducing energy consumption of steam Rankine Combined Cycle Unit, energy is the potentiality of excavating device fully, vitalize existing assets, the industrial policy that meets country simultaneously, economical, the Security of unit operation are reliably guaranteed, can effectively improve the thermal efficiency of system.
Description of drawings
Fig. 1 is that a kind of Boulez of the present invention pauses-hybrid steam Rankine combined cycle generating unit schematic flow sheet.
Among Fig. 1: 1-exhaust heat boiler body, 2-saturated vapour, 3-high-pressure superheater, the 3-1-high pressure superheated steam, 4-high-pressure turbine, 4-1-high-pressure turbine steam discharge, the 5-low-pressure steam generator, 5-1-low-pressure saturated steam, 6-condensed water, the 7-high pressure water pump, 8-high-pressure feed-water heater, 9-low pressure condensate water, the 10-condensate pump, 11-low-pressure feed heater, 11-1-vaporizer, the 11-2-condenser, 12-oxygen-eliminating device, 13-low pressure feed water pump, 14-secondary low-pressure feed heater, 15-low-pressure superheater, 16-low-pressure superheated steam, the 17-low-pressure turbine, 18-low pressure vapour condenser, 19-generator, the 20-flue, the 23-air, 24-gas compressor, 25-fuel-burning equipment, the 26-gas turbine, the 27-high-temperature flue gas, 28-fuel, 29-gas turbine powered 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-hybrid steam Rankine combined cycle generating unit, and this device comprises the Rankine cycle of high voltage terminal steam, the Rankine cycle of low voltage terminal steam, the Rankine cycle of described high voltage terminal steam:
Air 23 is sent into fuel-burning equipment 25 through gas compressor 24, fully burns with the fuel 28 that enters, and the high-temperature flue gas of generation enters gas turbine 26, drags gas turbine powered generator 29 generating, finishes the circulation of pausing of gas turbine unit Boulez.
The high-temperature flue gas 27 that described gas turbine 26 is discharged is as the thermal source of hybrid steam Rankine cycle system, and high-temperature flue gas 27 is discharged after exhaust heat boiler body 1, low-pressure superheater 15, high-pressure superheater 3, high-pressure feed-water heater 8, secondary low-pressure feed heater 14, low-pressure feed heater 11 coolings along flue 20.
The Rankine cycle of described high voltage terminal steam refers to the saturated vapour 2 that come out by exhaust heat boiler body 1, forms high pressure superheated steam 3-1 through high-pressure superheater 3, sends into high-pressure turbine 4 and drives generators 19 generatings; The exhaust steam 4-1 that high-pressure turbine 4 comes out directly mixes generation saturated vapour 5-1 with the feedwater of low voltage terminal steam Rankine cycle in low-pressure steam generator 5, the condensed water 6 that forms is sent into high-pressure feed-water heater 8, exhaust heat boiler body 1 through high pressure water pump 7, exhaust heat boiler body 1 produces saturated vapour again, thereby forms high voltage terminal steam Rankine cycle loop.
The Rankine cycle of described low voltage terminal steam, refer to that low-pressure steam generator 5 adopts the steam discharge 4-1 of high voltage terminal steam Rankine cycle as thermal source, produce low-pressure saturated steam 5-1 with feed water direct Hybrid Heating of low voltage terminal, form low-pressure superheated steam 16 through low-pressure superheater 15, send into low-pressure turbine 17 and drive generator 19 generatings; The exhaust steam that low-pressure turbine 17 comes out condenses into low voltage terminal water of condensation 9 at low pressure vapour condenser 18, water of condensation 9 is through condensate pump 10, low-pressure feed heater 11, oxygen-eliminating device 12, low pressure feed water pump 13, secondary low-pressure feed heater 14, send into low-pressure steam generator 5, low-pressure steam generator 5 produces steam 5-1 again, thereby forms low voltage terminal steam Rankine cycle loop.
Described low-pressure steam generator 5 adopts the operation under positive pressure modes, i.e. the pressure of high-pressure turbine 4 exhaust steam of coming out is higher than atmospheric pressure.
Described low-pressure feed heater 11 adopts the separated type heat exchange mode with flue gas, be compound phase change heat exchanger, comprise vaporizer 11-1, condenser 11-2, vaporizer 11-1 is arranged in the flue 20, condenser 11-2 is arranged in outside the flue 20, phase-change working substance adopts water, adopts natural circulation mode.Phase-change working substance absorbs flue gas in vaporizer 11-1 heat produces saturated vapour, saturated vapour is by condenser 11-2 and low voltage terminal water of condensation 9 wall-type heat exchanges, the cooling back forms condensation water and is absorbed the heat generation steam of flue gas again by vaporizer 11-1, thereby forms the inner cyclic process of phase-change working substance; The high-temperature flue gas that fuel combustion produces enters atmosphere after the vaporizer 11-1 of boiler body 1, low-pressure superheater 15, high-pressure superheater 3, high-pressure feed-water heater 8, secondary low-pressure feed heater 14, air preheater 23, low-pressure feed heater 11 cooling; Low-pressure steam generator 5 adopts the steam discharge 4-1 of high voltage terminal steam Rankine cycle as thermal source, produce low-pressure saturated steam 5-1 with feed water direct Hybrid Heating of low voltage terminal, form low-pressure superheated steam 16 through low-pressure superheater 15, send into low-pressure turbine 17 and drive generator 19 generatings; The exhaust steam that low-pressure turbine 17 comes out condenses into low voltage terminal water of condensation 9 at low pressure vapour condenser 18, water of condensation 9 is through condenser 11-2, oxygen-eliminating device 12, low pressure feed water pump 13, the secondary low-pressure feed heater 14 of condensate pump 10, low-pressure feed heater 11, send into low-pressure steam generator 5, low-pressure steam generator 5 produces steam 5-1 again, thereby forms low voltage terminal steam Rankine cycle loop.
Described high-pressure feed-water heater 8, low pressure steam vaporizer 5, secondary low-pressure feed heater 14, low-pressure feed heater 11, high-pressure superheater 3, low-pressure superheater 15 can arrange one or more respectively, adopt series, parallel or series-parallel connection mode to connect.
Described low voltage terminal vapour condenser 18 arranges according to routine techniques, adopts water as cooling medium.
The heat-exchanging element of mentioned aforementioned device can adopt tubulation, fin tube, coiler or spiral groove pipe among the present invention, or adopts the pipe of other augmentation of heat transfer measures or the hollow cavity heat-exchanging element of other patterns.
The a little higher than flue gas acid dew point temperature of wall surface temperature of the vaporizer 11-1 heat exchanger surface of control low-pressure feed heater 11, or the cold end corrosion of adopting corrosion-resistant material effectively to alleviate flue gas, can effectively reduce temperature of exhaust fume, avoid flue gas low-temperature corrosion time, the high efficiente callback fume afterheat.
Unaccounted equipment and standby system thereof, pipeline, instrument, valve among the present invention, be incubated, have the known mature technologies of employing such as regulatory function bypass, safety protection device and carry out supporting.
Be provided with safety, regulating controller with system support of the present invention, adopt the known ripe control technique of existing steam Rankine cycle power station, Cheng Shi cycle power plant or gas-steam combined cycle power plant to carry out supporting, make superposition type steam Rankine combined cycle generating unit energy economy, safety, high thermal efficiency operation, reach energy saving purposes.
Though 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, when doing various variations or retouching, belong to the present invention's protection domain equally certainly.Therefore protection scope of the present invention should with the application claim was defined is as the criterion.
Claims (9)
1. a Boulez pauses-hybrid steam Rankine combined cycle generating unit, and this device comprises the Rankine cycle of high voltage terminal steam and low voltage terminal organic rankine cycle system, it is characterized in that:
Air (23) is sent into fuel-burning equipment (25) through gas compressor (24), and with fully burning of the fuel that enters (28), the high-temperature flue gas of generation enters gas turbine (26), drags gas turbine powered generator (29) generating, finishes the circulation of pausing of gas turbine unit Boulez;
The high-temperature flue gas (27) that described gas turbine (26) is discharged is as the thermal source of hybrid steam Rankine cycle system, and high-temperature flue gas (27) is discharged along the attached heating surface cooling back of exhaust heat boiler body (1) and flue (20);
The Rankine cycle of described high voltage terminal steam refers to the saturated vapour (2) that come out by exhaust heat boiler body (1), forms high pressure superheated steam (3-1) through high-pressure superheater (3), sends into high-pressure turbine (4) and drives generator (19) generating; The exhaust steam that high-pressure turbine (4) comes out forms condensed water (6) through low-pressure steam generator (5), condensed water (6) is sent into exhaust heat boiler body (1) through high pressure water pump (7), exhaust heat boiler body (1) produces saturated vapour again, thereby forms high voltage terminal steam Rankine cycle loop;
The Rankine cycle of described low voltage terminal steam refers to the saturated vapour (5-1) that come out by low pressure steam vaporizer (5), forms low-pressure superheated steam (16) through low-pressure superheater (15), sends into low-pressure turbine (17) and drives generator (19) generating; The exhaust steam that low-pressure turbine (17) comes out condenses into low voltage terminal water of condensation (9) at vapour condenser (18), send into the low pressure steam vaporizer through low pressure feed water pump (13), directly mix with the steam discharge (4-1) of high-pressure turbine (4), produce saturated vapour (5-1), thereby form low voltage terminal steam Rankine cycle loop;
Described low-pressure steam generator (5) adopts the operation under positive pressure mode, i.e. the pressure of the exhaust steam (4-1) of high-pressure turbine (4) discharge is higher than atmospheric pressure;
The Rankine cycle of described high voltage terminal steam and the Rankine cycle of low voltage terminal steam directly combine by low-pressure steam generator (5), and the latent heat of vaporization that discharges when reclaiming the steam condensation of temperature end steam Rankine cycle is used for low-temperature end steam Rankine cycle generating.
2. device according to claim 1 is characterized in that:
Be provided with high-pressure feed-water heater (8):
The saturated vapour (2) that exhaust heat boiler body (1) comes out forms high pressure superheated steam (3-1) through high-pressure superheater (3), sends into high-pressure turbine (4) and drives generator (19) generating; The exhaust steam (4-1) that high-pressure turbine (4) comes out forms condensed water (6) through low-pressure steam generator (5), condensed water (6) is sent into high-pressure feed-water heater (8), exhaust heat boiler body (1) through high pressure water pump (7), exhaust heat boiler body (1) produces saturated vapour again, thereby forms high voltage terminal steam Rankine cycle loop.
3. device according to claim 1 is characterized in that:
Be provided with oxygen-eliminating device (12):
Saturated vapour (5-1) by low pressure steam vaporizer (5) produces forms low-pressure superheated steam (16) through low-pressure superheater (15), sends into low-pressure turbine (17) and drives generator (19) generating; The exhaust steam that low-pressure turbine (17) comes out condenses into low voltage terminal water of condensation (9) at vapour condenser (18), low voltage terminal water of condensation (9) is through condensate pump (10), oxygen-eliminating device (12), low pressure feed water pump (13), send into low pressure steam vaporizer (5), directly mix with the steam discharge (4-1) of high-pressure turbine, produce saturated vapour (5-1), thereby form low voltage terminal steam Rankine cycle loop.
4. device according to claim 3 is characterized in that:
Be provided with low-pressure feed heater (11):
Saturated vapour (5-1) by low pressure steam vaporizer (5) produces forms low-pressure superheated steam (16) through low-pressure superheater (15), sends into low-pressure turbine (17) and drives generator (19) generating; The exhaust steam that low-pressure turbine (17) comes out condenses into low voltage terminal water of condensation (9) at vapour condenser (18), low voltage terminal water of condensation (9) is through condensate pump (10), low-pressure feed heater (11), oxygen-eliminating device (12), low pressure feed water pump (13), send into low pressure steam vaporizer (5), directly mix with the steam discharge (4-1) of high-pressure turbine, produce saturated vapour (5-1), thereby form low voltage terminal steam Rankine cycle loop.
5. device according to claim 3 is characterized in that:
Be provided with secondary low-pressure feed heater (14):
Saturated vapour (5-1) by low pressure steam vaporizer (5) produces forms low-pressure superheated steam (16) through low-pressure superheater (15), sends into low-pressure turbine (17) and drives generator (19) generating; The exhaust steam that low-pressure turbine (17) comes out condenses into low voltage terminal water of condensation (9) at vapour condenser (18), low voltage terminal water of condensation (9) is through condensate pump (10), oxygen-eliminating device (12), low pressure feed water pump (13), secondary low-pressure feed heater (14), send into low pressure steam vaporizer (5), directly mix with the steam discharge (4-1) of high-pressure turbine, produce saturated vapour (5-1), thereby form low voltage terminal steam Rankine cycle loop.
6. according to the described device of one of claim 3 to 5, it is characterized in that:
Saturated vapour (5-1) by low pressure steam vaporizer (5) produces forms low-pressure superheated steam (16) through low-pressure superheater (15), sends into low-pressure turbine (17) and drives generator (19) generating; The exhaust steam that low-pressure turbine (17) comes out condenses into low voltage terminal water of condensation (9) at vapour condenser (18), low voltage terminal water of condensation (9) is through condensate pump (10), low-pressure feed heater (11), oxygen-eliminating device (12), low pressure feed water pump (13), secondary low-pressure feed heater (14), send into low pressure steam vaporizer (5), directly mix with the steam discharge (4-1) of high-pressure turbine, produce saturated vapour (5-1), thereby form low voltage terminal steam Rankine cycle loop.
7. device according to claim 4 is characterized in that:
Described low-pressure feed heater (11) adopts dividing wall type or separated type heat exchange mode with flue gas.
8. device according to claim 7 is characterized in that:
Described low-pressure feed heater (11) adopts the separated type heat exchange mode with flue gas, comprises vaporizer (11-1), condenser (11-2); Vaporizer (11-1) is arranged in fume side, follow the flue gas wall-type heat exchange by phase-change working substance, the phase-change working substance heat absorption produces steam, steam is by the feedwater wall-type heat exchange of condenser (11-2) with the Rankine cycle of low voltage terminal steam, the cooling back forms condensation water and is absorbed the heat generation steam of flue gas again by vaporizer (11-1), thereby forms the inner cyclic process of phase-change working substance.
9. according to claim 2 or 5 described devices, it is characterized in that:
Described high-pressure superheater (3), low-pressure superheater (15), high-pressure feed-water heater (8), secondary low-pressure feed heater (14), low-pressure feed heater (11), low pressure steam vaporizer (5) can arrange one or more, adopt series, parallel or series-parallel connection mode to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200421764U CN203035350U (en) | 2013-01-27 | 2013-01-27 | Britten-hybrid combined steam rankine cycle power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200421764U CN203035350U (en) | 2013-01-27 | 2013-01-27 | Britten-hybrid combined steam rankine cycle power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035350U true CN203035350U (en) | 2013-07-03 |
Family
ID=48687482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200421764U Expired - Fee Related CN203035350U (en) | 2013-01-27 | 2013-01-27 | Britten-hybrid combined steam rankine cycle power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035350U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089440A (en) * | 2013-01-27 | 2013-05-08 | 南京瑞柯徕姆环保科技有限公司 | Britton-mixed steam Rankine combined cycle power generation device |
| 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 |
| 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 |
| CN105114938A (en) * | 2015-09-18 | 2015-12-02 | 上海电气电站设备有限公司 | Coiler type high-pressure feed-water heater |
| CN105697250A (en) * | 2016-03-16 | 2016-06-22 | 绍兴文理学院 | Tower type solar synthetic ammonia system |
| CN109855079A (en) * | 2019-02-02 | 2019-06-07 | 华电电力科学研究院有限公司 | A kind of combined cycle power peak regulation system and its operation method based on steam extraction coupling accumulation of heat |
-
2013
- 2013-01-27 CN CN2013200421764U patent/CN203035350U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089440A (en) * | 2013-01-27 | 2013-05-08 | 南京瑞柯徕姆环保科技有限公司 | Britton-mixed steam Rankine combined cycle power generation device |
| CN103089440B (en) * | 2013-01-27 | 2015-11-11 | 南京瑞柯徕姆环保科技有限公司 | Boulez pauses-hybrid steam Rankine combined cycle generating unit |
| 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 |
| 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 |
| CN105114938A (en) * | 2015-09-18 | 2015-12-02 | 上海电气电站设备有限公司 | Coiler type high-pressure feed-water heater |
| CN105697250A (en) * | 2016-03-16 | 2016-06-22 | 绍兴文理学院 | Tower type solar synthetic ammonia system |
| CN109855079A (en) * | 2019-02-02 | 2019-06-07 | 华电电力科学研究院有限公司 | A kind of combined cycle power peak regulation system and its operation method based on steam extraction coupling accumulation of heat |
| CN109855079B (en) * | 2019-02-02 | 2023-11-14 | 华电电力科学研究院有限公司 | Combined cycle power peak regulation system based on steam extraction coupling heat accumulation and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203201663U (en) | Britten-steam exhausting type steam Rankine combined cycle power generation device | |
| CN103075216B (en) | Brayton-cascade steam Rankine combined cycle power generation system | |
| CN203035350U (en) | Britten-hybrid combined steam rankine cycle power generation device | |
| CN103089439B (en) | Boulez pauses-steam Rankine-organic Rankine combined cycle cogeneration device | |
| CN203271835U (en) | Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set | |
| CN203271834U (en) | Britten-steam Rankine-ammonia vapour Rankine combined cycle generating set | |
| CN103089442B (en) | Boulez pauses-steam Rankine-organic Rankine combined cycle generating unit | |
| CN203223294U (en) | Brayton-steam Rankine-organic Rankine combined cycle cogeneration device of heat and electricity | |
| CN103075213B (en) | Cascade type steam Rankine combined cycle generating device | |
| CN203223295U (en) | Brayton-steam Rankine-organic Rankine combined cycle power generation device | |
| CN103075215A (en) | Extracted steam type steam Rankine-ammonia steam Rankine combined cycle power generation device | |
| CN104727870A (en) | Multistage cascaded steam Rankine combined cycle power generation device | |
| CN203097971U (en) | Mixed steam Rankine combined cycle power generating device | |
| CN103147809B (en) | Boulez pauses-steam Rankine-ammonia steam Rankine combined cycle generating unit | |
| CN103075251B (en) | Boulez pauses-steam-extracting type steam Rankine combined cycle generating unit | |
| CN103089352B (en) | Mixed type steam Rankine combined cycle power generation device | |
| CN103089350A (en) | Britten-steam Rankine-ammonia vapor Rankine combined cycle power generation device | |
| CN203035274U (en) | Breton-overlapped type steam Rankine combined cycle power generation device | |
| CN103089355A (en) | Steam Rankine-low boiling point working medium Rankine combined cycle power generation device | |
| CN203097975U (en) | Vapor Rankine and ammonia vapor Rankine combined cycle electricity generation device | |
| CN203050817U (en) | Steam extraction type steam rankine-ammonia steam rankine combined cycle power generation unit | |
| CN103089440B (en) | Boulez pauses-hybrid steam Rankine combined cycle generating unit | |
| CN203097970U (en) | Overlapped-type steam Rankine combined cycle power generation device | |
| CN204572090U (en) | Multistage cascade type steam Rankine combined cycle generating unit | |
| CN203097973U (en) | Steam extraction type steam Rankine combined cycle power generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20220127 |