CN102734094B - Thermal power generation system combined by water saving type solar combustion gas turbine and kalina cycle - Google Patents

Thermal power generation system combined by water saving type solar combustion gas turbine and kalina cycle Download PDF

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CN102734094B
CN102734094B CN2011100861933A CN201110086193A CN102734094B CN 102734094 B CN102734094 B CN 102734094B CN 2011100861933 A CN2011100861933 A CN 2011100861933A CN 201110086193 A CN201110086193 A CN 201110086193A CN 102734094 B CN102734094 B CN 102734094B
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gas turbine
solar
heat
linna
generating
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CN102734094A (en
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洪慧
金红光
韩巍
彭烁
高志超
张传强
韩涛
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Institute of Engineering Thermophysics of CAS
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Institute of Engineering Thermophysics of CAS
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Abstract

The invention discloses a thermal power generation system combined by a water saving type solar combustion gas turbine and a kalian cycle, which comprises a tower type heat collecting system for preheating air, a combustion gas turbine system, a combustion gas turbine power generation system and a kalian cycle power generation system, wherein the combustion gas turbine system is used for receiving and gathering solar irradiation energy, converting the received solar irradiation energy to heat energy, transmitting the heat energy to compressed air and then outputting the compressed air to the combustion gas turbine driven by complementation of solar energy and fuel; the combustion gas turbine power generation system is used for receiving heat energy generated by the solar heat generating system and burning of the fuel and converting the heat energy to electric energy; and the kalian cycle power generation system is used for receiving intermediate cold and hot and waste heat of gas exhausted by the combustion gas turbine and converting the intermediate cold and hot and the waste heat to electric energy. According to the invention, the top cycle takes air as a working medium, and the bottom cycle is kalian cycle, so that water consumption in the solar thermal power generation system is reduced, the disadvantage of keeping high vacuum degree in the traditional steam bottom cycle condenser is solved, the cost is reduced, exhaust gas temperature is further decreased, irreversible loss during heat exchanging process is reduced, and the generating efficiency of the cycle is improved.

Description

The heat generating system that water-saving solar gas turbine is combined with the Ka Linna circulation
Technical field
The present invention relates to the multi-energy complementation technical field, the heat generating system that especially a kind of water-saving solar gas turbine is combined with the Ka Linna circulation.
Background technique
Prior art related to the present invention mainly comprises solar energy thermal-power-generating technology, solar gas wheel machine technology and Ka Linna power generation technology at present, below respectively above three kinds of technology is described:
1, solar energy thermal-power-generating technology
Along with the exhaustion day by day of the day by day serious and fossil fuel of environmental problem, the utilization of renewable energy sources gets most of the attention.Solar energy, with generality, the spatter property of exploitation and the advantages such as Economy that appear gradually of its unique reserves " unlimitedness ", existence, is played the leading role in important task at last in world's energy resource structure shifts.
Optically focused class solar energy thermal-power-generating (hereinafter referred to as solar energy thermal-power-generating), namely utilize concentrating collector by the solar radiant energy energy transform into heat energy and by thermodynamic cycle, to continue the technology of generating electricity.The existing solar heat power generation system in the world roughly has: tower system, slot type system and dish formula system three classes, and wherein the slot type system has realized commercialization in phase early 1990s, other two kinds are at present the commercialization demonstration phase, huge application prospect are arranged.
The parabolic trough type solar heat power generation system is to utilize the groove type line-focusing parabolic mirror to reach the solar energy thermal-power-generating form of optically focused requirement, the groove type paraboloid reflective surface carries out the one dimension tracking to solar energy more, its optically focused is than between 40 to 80, and heat-collecting temperature is generally lower than 400 ℃.At present, the parabolic trough type solar heat power generation system adopts conduction oil as thermal-arrest working medium more, the low temperature conduction oil is fed to solar energy heat collection pipe through oil pump, be heated to 390 ℃ of left and right, become high temperature heat conductive oil, high temperature heat conductive oil passes through successively steam reheater, crosses the devices such as hot gas, vaporizer and preheater, the solar energy of collecting is delivered in vapor recycle, produce the superheated vapor of 370 ℃ of left and right, enter in steam turbine and do work, the output electric energy.But simple parabolic trough type solar heat power generation system is subjected to the restriction of optically focused ratio and heat-collecting temperature, and the difficulty that further improves the thermal efficiency, reduction cost of electricity-generating is larger.
Tower-type solar thermal power generating system adopts double-axis tracking usually, and its optically focused ratio is usually between 200 to 700, and the system maximum operating temperature can reach 1500 ℃.Solar radiation through the heliostat reflection gathers on the heat absorber of tower top, the heat transmission working medium in the heating heat absorber; The superheated vapor that steam generation device produces is realized the hot merit conversion after entering power sub-system, completes electric energy output.With the parabolic trough type solar heat power generation system, compare, the heat-collecting temperature of tower-type solar thermal power generating system is high, easily produces high parameter steam, so the corresponding raising of the efficiency of heat-actuated device.At present, the major obstacle of tower-type solar thermal power generating system is, when the light and heat collection the increase of output power of heliostat field, after namely single tower solar heat power generation system maximized, the thermal efficiency of heliostat field decreased.
The butterfly solar heat power generation system, take single rotational paraboloid mirror as basis, forms complete optically focused, thermal-arrest and a generator unit.Adopt double-axis tracking device, its optically focused is than generally between 1000 to 3000.Heat absorber absorbs solar radiation and converts thereof into heat energy, and heating heat absorption working medium, drive heat engine and realize photoelectric conversion.The butterfly solar heat power generation system is mainly used in the distributing power system.
Although solar heat power generation system respectively has quality, solar energy, because energy density is low, discontinuous, accumulation of energy is difficult, causes solar energy utilization ratio low, and the exploitation degree is severely limited.Solar thermal utilization and other resource complementations, particularly solar energy and fossil energy complementation are to solve at present that solar energy utilization ratio is low, a main path of energy discontinuous problem.
2, solar gas wheel machine technology
The solar gas expander system, with concentrating solar collector and the complementary heated compressed air of fossil fuel, is then sent into gas turbine acting generating.Solar energy and fossil energy complementation can guarantee that turbine inlet temperature is stable, avoided variable parameter operation, and can realize having saved the energy-storage system of huge costliness without energy storage operation continuously in 24 hours, compare simple solar heat power generation system cost of electricity-generating lower, efficiency is higher.Solar heat power generation system take water as working medium, due to the condensation of acting steam, needs to consume a large amount of condensed waters.And take pressurized air as working medium not only water usage can ignore, do not need to remain the condenser of condition of high vacuum degree, and the system of miniaturization can reduce investment risk.The exhaust of gas turbine is 200 to 300 ℃ through regenerator to the pressurized air temperature after heating, be not suitable for driving the Rankine cycle take water as working medium, directly enter the waste that atmosphere can cause heat, be unfavorable for the raising of system effectiveness, and be the thermo-pollution to environment.And gas turbine goes out the over half of merit and will, be used to the wasted work of compressor is provided, seriously restrict generated energy and the system effectiveness of system.
3, Ka Linna power generation technology
the Ka Linna circulation is proposed in the mid-80 by Russian Dr.Alex kalina, it usings ammonia water mixture as working medium, concentration at the different location of circulatory system ammoniacal liquor changes, in boiler, endothermic process adopts the higher ammonia water mixture of concentration, so that the exothermic process of flue gas better coordinates with the endothermic process curve of mixed working fluid, reduce to greatest extent the diabatic process irreversible loss, did the steam of merit, in the condensation heat process, adopt the ammonia water mixture that concentration is lower, make condensation process pressure a little more than atmospheric pressure, the low-pressure section of steam turbine and condensing plant do not need to consider the air problem of bleeding, do not need to remain the condition of high vacuum degree in condenser yet.The phase transition temperature of ammoniacal liquor is low in addition, makes the Ka Linna circulation can utilize the unavailable low-temperature heat source of Rankine cycle take water vapor as working medium, as Ka Linna, is cycled to used in the end circulation time of combined cycle, can drop to lower level to temperature of exhaust fume.But when the driving heat source temperature was higher, for improving the Ka Linna cycle efficiency, the Ka Linna system often needed more complicated design, therefore dropped into also corresponding increase.And due to the restriction of ammoniacal liquor character, the driving heat source temperature can not be too high.
Summary of the invention
(1) technical problem that will solve
In view of this, the heat generating system that provides a kind of water-saving solar gas turbine to combine with the Ka Linna circulation is provided main purpose of the present invention, and this system had both solved the solar energy thermal-power-generating inefficiency problem, can realize system water saving again.
(2) technological scheme
for achieving the above object, the invention provides the heat generating system that a kind of water-saving solar gas turbine is combined with the Ka Linna circulation, this system comprises the collecting system of tower type solar preheated air, gas turbine generating system, the Ka Linna circulation drives heat exchanger and Ka Linna cycle generating system, the collecting system of tower type solar preheated air is connected with regenerator and firing chamber, gas turbine generating system is connected with the Ka Linna cycle generating system with heat exchanger by pipeline, wherein: the collecting system of tower type solar preheated air, for receiving and assemble the solar irradiance energy, by the solar irradiance Conversion of Energy of reception, be that thermal energy transfer is to pressurized air, then export to the gas turbine engine systems of solar energy and fuel complementary drive, gas turbine generating system, the heat energy that produces be used to receiving solar thermal collection system and fuel combustion, be translated into electric energy, Ka Linna cycle generating system take ammonia water mixture as working medium, be used to receive the implements spatial scalable compression machine between the waste heat of cold and hot and combustion turbine exhaustion, be translated into electric energy.
In such scheme, the collecting system of described tower type solar preheated air is realized compressed-air actuated classification heating by three optically focused than different tower series, comprises heliostat array, high tower and pressure cavity type receiver; Wherein pressure cavity type receiver is positioned on high tower, and the heliostat array, centered by high tower, is circle-shaped distribution, by solar light focusing to pressure cavity type receiver, the flow through pressurized air of heat absorber of concentrated heating.
In such scheme, described gas turbine generating system comprises classification air compressor, inter cooler, firing chamber, gas turbine, regenerator, generator and control system, wherein the compression of classification air compressor is from the next air of environment, the pre-hot compressed air of regenerator, firing chamber receives pressurized air and fossil fuel mixed combustion produces high-temperature flue gas, in gas turbine, expand and do work, thereby drive classification air compressor and generator generating.Described air compressor adopts implements spatial scalable compression, and is cold and hot for that end circulation of driver card woods between between two stage compression.
In such scheme, described Ka Linna circulation drives heat exchanger and consists of two heat exchangers, one be positioned at regenerator after, with combustion turbine exhaustion, drive; One between first order compressor and inter cooler, with the air driven of first order compressor outlet.
in such scheme, described Ka Linna cycle generating system, comprise turbine, regenerator, gas-liquid separator, mixer, separator, the low pressure vapour condenser, low pressure pump, high pressure vapour condenser and high-pressure service pump, the working liquid body that is in the saturated liquids state boosts by high-pressure service pump, heat absorption becomes superheated vapor in the Ka Linna circulation drives heat exchanger, deliver to the turbine work done, exhaust steam is after regenerator is cooling, the weak aqua ammonia that flows out with the gas-liquid separator bottom mixes in mixer, condensation in the low pressure vapour condenser, and boost in the low pressure booster pump, deliver to separator, one stock-traders' know-how regenerator heating, and in distiller, be separated into concentrated ammonia liquor and weak aqua ammonia, the gaseous state concentrated ammonia liquor that another strand enters mixer and the outflow of distiller top is mixed to form working solution, through the condensation of high pressure vapour condenser, becomes operate in saturation solution.
In such scheme, described Ka Linna cycle generating system is driven by two thermals source, and distillation condensation subsystem DCSS has replaced condenser, and working medium is advanced people DCSS condensation with the dry saturated vapor state, and the hotwork that discharges in condensation process is the driving heat of gas-liquid separator.
In such scheme, the complementary process of described solar energy and alternative fuel does not need to arrange solar energy storage apparatus, and alternative fuel is rock gas.
In such scheme, described combined cycle consists of solar energy and fossil fuel complementary drive pressurized air brayton cycle and Ka Linna circulation.At the bottom of described Ka Linna, circulation is take ammonia water mixture as working medium, and this ammonia water mixture, at the fume afterheat that absorbs in exhaust heat boiler after the regenerator cooling, was excited into hot gas and enters the turbine acting.
(3) beneficial effect
From technique scheme, can find out, the present invention has following beneficial effect:
1, water-saving solar gas turbine provided by the invention and the heat generating system that Ka Linna circulates and combines, compare vapor recycle, and water-saving result is obvious.The quantity of circulating water of tradition 50MW trough type solar power generation system is about 5600t/h, in servicely need moisturizing 151.4t/h because of blowdown and evaporation loss, and the top circulation brayton cycle working medium of this system is pressurized air, substantially water consumption not, end cycle fluid is ammoniacal liquor, the share that the generating ratio accounts for is less, only needs the circulation concentrated ammonia liquor of about 17.4t/h, because blowdown and evaporation loss need moisturizing 5.8t/h.
2, water-saving solar gas turbine provided by the invention and the Ka Linna circulation heat generating system of combining, solar energy is incorporated into to gas turbine cycle, reduce the consumption of fossil fuel and the discharging of greenhouse gases, met the energy-saving and emission-reduction purpose in China and even the whole world.
3, water-saving solar gas turbine provided by the invention and the Ka Linna circulation heat generating system of combining, can effectively improve the generating efficiency of system, result of calculation shows, the thermal efficiency of cycle of new system reaches 50.21%, with simple gas turbine engine systems, compare, improve approximately 20 percentage points, with the gas turbine engine systems with backheat, compared, improved approximately 6 percentage points, with single combined cycle of pressing, compare, improve approximately 4 percentage points, with two pressure combined cycle, compared, improved approximately 1 percentage point.And what adopt here is the simplest kalina circulation, and thermal efficiency of cycle only has 15.84%, if adopt more complicated kalina circulation, the efficiengy-increasing of system will be more considerable.
4, water-saving solar gas turbine provided by the invention and the Ka Linna circulation heat generating system of combining, the Ka Linna circulation is adopted in end circulation, the change of working medium concentration in the non-isothermal process of Working fluid phase changing and cyclic process, make the exothermic process coupling of vaporescence and thermal source good, reduce the irreversible loss in the heat transfer process, improved UTILIZATION OF VESIDUAL HEAT IN efficiency.
5, water-saving solar gas turbine provided by the invention and the Ka Linna circulation heat generating system of combining, can be under different irradiation intensities, by control system, move in different ways, realization is without energy storage operation continuously in 24 hours, compare traditional vapor recycle water-saving result obvious, solved again the CO that gas turbine unit is directly burnt and causes by fossil fuel simultaneously 2The environmental problems such as discharging.
The accompanying drawing explanation
The structural representation of Fig. 1 heat generating system that to be water-saving solar gas turbine provided by the invention combine with the Ka Linna circulation.
The analog result of Fig. 2 heat generating system that to be water-saving solar gas turbine provided by the invention combine with the Ka Linna circulation.
In Fig. 1, each parts reach and are labeled as accordingly: 1-compressor 1,2-compressor 2,3-gas turbine, 4-Ka Linna drives heat exchanger 1, and 5-Ka Linna drives heat exchanger 2,6-inter cooler, 7-pressure cavity type receiver, 8-regenerator, 9-mixer, the 10-separator, 11-high-pressure service pump, 12-high pressure vapour condenser, the 13-turbine, 14-gas-liquid separator, 15-mixer, 16-low pressure vapour condenser, the 17-low pressure pump, 18-separator, 19-mixer, the 20-regenerator, the 21-generator, 22-heliostat array, 23-high tower, the 24-generator, the 25-firing chamber.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The structural representation of Fig. 1 heat generating system that to be water-saving solar gas turbine provided by the invention combine with the Ka Linna circulation, this system comprises collecting system, gas turbine generating system, Ka Linna circulation driving heat exchanger and the Ka Linna cycle generating system of tower type solar preheated air.Wherein, the collecting system of tower type solar preheated air is connected with regenerator and firing chamber, and gas turbine generating system is connected with the Ka Linna cycle generating system with heat exchanger by pipeline.The collecting system of tower type solar preheated air is for receiving and assemble the solar irradiance energy, by the solar irradiance Conversion of Energy of reception be thermal energy transfer to pressurized air, then export to the gas turbine engine systems of solar energy and fuel complementary drive.The heat energy that gas turbine generating system produces for receiving solar thermal collection system and fuel combustion, be translated into electric energy.Ka Linna cycle generating system take ammonia water mixture as working medium be used to receive the implements spatial scalable compression machine between the waste heat of cold and hot and combustion turbine exhaustion, be translated into electric energy.
The collecting system of tower type solar preheated air is realized the classification heating by three optically focused than different tower series, comprises heliostat array 22, high tower 23 and pressure cavity type receiver 7.Pressure cavity type receiver 7 is positioned on high tower, heliostat array 22 is centered by high tower 23, be circle-shaped distribution, by solar light focusing to pressure cavity type receiver 7, the flow through pressurized air of pressure cavity type receiver 7 of concentrated heating, being heated as crossing hot compressed air, is heat energy by the solar irradiance Conversion of Energy, then by overheated compressed air delivery to gas turbine 3.
Gas turbine generating system and air compressor (1,2) with generator 24, be connected, in order to wasted work and the generating that air compressor is provided, the classified air compressor (1 of air, 2) compression in regenerator 8 after backheat, in pressure cavity type receiver 7 or firing chamber 25, be heated to be hot compressed air, and then sent into gas turbine 3 and do work and drive generator 24 generatings.Cross the pressurized air that hot gas is converted into middle temperature, for compressed-air actuated preheating and that cycle generating system of driver card woods.
Ka Linna cycle generating system take ammonia water mixture as working medium comprises turbine 13, regenerator 20, gas-liquid separator 14, mixer 15,19, separator 18, low pressure vapour condenser 16, low pressure pump 17, high pressure vapour condenser 12 and high-pressure service pump 11 etc.The working liquid body that is in the saturated liquids state boosts by high-pressure service pump 11, in the Ka Linna circulation, drive heat exchanger 4, in 5, heat absorption becomes superheated vapor, delivers to turbine 13 works done, and exhaust steam is after regenerator 20 is cooling, the weak aqua ammonia that flows out with gas-liquid separator 14 bottoms mixes in mixer 15, condensation in low pressure vapour condenser 16, and boost in low pressure pump 17, deliver to separator 14, one stock-traders' know-how regenerator 20 heating, and in gas-liquid separator 12, be separated into concentrated ammonia liquor and weak aqua ammonia; Another strand enters mixer 19 and is mixed to form working solution with the gaseous state concentrated ammonia liquor of distiller top outflow, through 12 condensations of high pressure vapour condenser, becomes operate in saturation solution.
Compressed-air actuated heating institute calorific requirement is provided jointly by solar energy and fossil fuel.On control strategy, according to solar energy irradiation, change, by controlling fuel flow rate, keep the stable of gas turbine suction parameter.When solar irradiance is sufficient, close fuel circulating pump, compressed-air actuated heating process is provided by solar energy fully.At night or rainy weather, when solar irradiance was not enough, the control system regulate fuel flow provided residue institute calorific requirement.
Air compressor adopts implements spatial scalable compression, reduce the wasted work of compressor, improve Gas Turbine Output and efficiency, the one-level compressor outlet drives heat exchanger 2 with Ka Linna and is connected, heat supply for the Ka Linna cycle fluid, make between compressor 1,2 between cold and hot the utilization, further improve system effectiveness.
Pressurized air is heated in pressure cavity type receiver 7, air compressor 2 outlet is arranged as streamlined preferably, and power sub-system is arranged on apart from nearer near the ground to reduce the crushing of working medium of receiver.
Firing chamber 25 inlet diameters will increase and will be arranged as streamlined preferably, to adapt to ratio piston compressor outlet temperature and the much higher air of specific volume after solar energy heating, firing chamber 25 can be arranged as former and later two parts, front portion is for the burning of fuel, rear portion for the flue gas after fuel combustion with from pressure cavity type receiver 7 air out, mix, thereby the combustion efficiency of assurance fuel in combustion chamber.The cooling-air runner of firing chamber 25 to turbine 3 sealed, and draw cooling for turbine blade of a small-sized bypass from air compressor 2 outlet.
The Ka Linna circulation is by compound compressor (1,2) between between, cold and hot and exhaust heat gas turbine 3 drives jointly, working solution is heated to be to superheat state to be entered turbine 13 and does work and drive generator 21 generating, the exhaust of turbine 13 is for driving gas-liquid separator 14, basic solution is separated into to concentrated ammonia liquor and weak aqua ammonia, the many concentration operations of multiple pressure power are adopted in whole circulation, effectively reduce energy loss.
The heat generating system that water-saving solar gas turbine provided by the invention is combined with the Ka Linna circulation adopts Aspen Plus software to simulate.In simulation process, suppose the solar irradiance abundance, do not need the fuel afterburning, the assumed condition that simulation process is done is in Table 1, and in this system, the gas turbine inlet temperature is 1000 ℃, and pressure ratio is 12.1.First order compressor pressure ratio is 4, and the high stage compressor pressure ratio is 3.The working solution ammonia concentration of Ka Linna circulation is 97%, and working pressure is 50bar.
The circulation of Bretton top
Compressor efficiency 0.85
Combustion gas turbine efficiency 0.88
Pump efficiency 0.75
Ka Linna drives the heat exchanger pinch-point temperature difference, ℃ 10
The inter cooler outlet temperature, ℃ 25
Circulation at the bottom of Ka Linna
Efficiency of turbine 0.88
Pump efficiency 0.75
The ammoniacal liquor condensing temperature, ℃ 24
The gas-liquid separator working pressure, bar 15
The gas-liquid separator operating temperature, ℃ 50
Turbine inlet temperature, ℃ 170
The turbine inlet pressure, bar 50
Solar thermal collection system
Average optical efficiency, % 70
On average accept efficiency, % 80
Table 1
Analog result such as Fig. 2 of the heat generating system that water-saving solar gas turbine provided by the invention is combined with the Ka Linna circulation.Result of calculation shows, this systemic circulation thermal efficiency is 50.21%, at the bottom of Ka Linna, the introducing of circulation makes system generated energy and thermal efficiency of cycle increase by 14.1%, and make temperature of exhaust fume be reduced to 76 ℃, increased the fume afterheat utilization ratio, at the bottom of Ka Linna, the thermal efficiency of cycle of circulation is 15.84%, and after consideration solar energy heating efficiency, the system solar energy generating efficiency is 28.12%.
Above-described specific embodiment; purpose of the present invention, technological scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1. the water-saving solar gas turbine heat generating system of combining with the Ka Linna circulation, it is characterized in that, this system is take ammoniacal liquor as working medium, realize substituting of cycle fluid water at the bottom of traditional Rankine, reduce the water consumption of solar heat power generation system, the collecting system that comprises the tower type solar preheated air, gas turbine generating system, the Ka Linna circulation drives heat exchanger and Ka Linna cycle generating system, the collecting system of tower type solar preheated air is connected with regenerator and firing chamber, gas turbine generating system is connected with the Ka Linna cycle generating system with heat exchanger by pipeline, wherein:
The collecting system of tower type solar preheated air, for receiving and assemble the solar irradiance energy, by the solar irradiance Conversion of Energy of reception be thermal energy transfer to pressurized air, then export to the gas turbine engine systems of solar energy and fuel complementary drive;
Gas turbine generating system, the heat energy that produces be used to receiving solar thermal collection system and fuel combustion, be translated into electric energy;
Ka Linna cycle generating system take ammonia water mixture as working medium, be used to receive the implements spatial scalable compression machine between the waste heat of cold and hot and combustion turbine exhaustion, be translated into electric energy;
wherein, described Ka Linna cycle generating system, comprise turbine, regenerator, gas-liquid separator, mixer, separator, the low pressure vapour condenser, low pressure pump, high pressure vapour condenser and high-pressure service pump, the working liquid body that is in the saturated liquids state boosts by high-pressure service pump, heat absorption becomes superheated vapor in the Ka Linna circulation drives heat exchanger, deliver to the turbine work done, exhaust steam is after regenerator is cooling, the weak aqua ammonia that flows out with the gas-liquid separator bottom mixes in mixer, condensation in the low pressure vapour condenser, and boost in the low pressure booster pump, deliver to separator, one stock-traders' know-how regenerator heating, and in distiller, be separated into concentrated ammonia liquor and weak aqua ammonia, the gaseous state concentrated ammonia liquor that another strand enters mixer and the outflow of distiller top is mixed to form working solution, through the condensation of high pressure vapour condenser, becomes operate in saturation solution.
2. water-saving solar gas turbine according to claim 1 and the Ka Linna circulation heat generating system of combining, it is characterized in that, the collecting system of described tower type solar preheated air is realized compressed-air actuated classification heating by three optically focused than different tower series, comprises heliostat array, high tower and pressure cavity type receiver; Wherein pressure cavity type receiver is positioned on high tower, and the heliostat array, centered by high tower, is circle-shaped distribution, by solar light focusing to pressure cavity type receiver, the flow through pressurized air of heat absorber of concentrated heating.
3. water-saving solar gas turbine according to claim 1 and the Ka Linna circulation heat generating system of combining, it is characterized in that, described gas turbine generating system comprises classification air compressor, inter cooler, firing chamber, gas turbine, regenerator, generator and control system, wherein the compression of classification air compressor is from the next air of environment, the pre-hot compressed air of regenerator, firing chamber receives pressurized air and fossil fuel mixed combustion produces high-temperature flue gas, in gas turbine, expand and do work, thereby drive classification air compressor and generator generating.
4. water-saving solar gas turbine according to claim 3 and the Ka Linna circulation heat generating system of combine, is characterized in that, described air compressor adopts implements spatial scalable compression, and is cold and hot for circulating at that end of driver card woods between between two stage compression.
5. water-saving solar gas turbine according to claim 1 and the Ka Linna circulation heat generating system of combine, is characterized in that, described Ka Linna circulation driving heat exchanger consists of two heat exchangers, one be positioned at regenerator after, with combustion turbine exhaustion, drive; One between first order compressor and inter cooler, with the air driven of first order compressor outlet.
6. water-saving solar gas turbine according to claim 1 and the Ka Linna circulation heat generating system of combining, it is characterized in that, described Ka Linna cycle generating system is driven by two thermals source, distillation condensation subsystem DCSS has replaced condenser, working medium is advanced people DCSS condensation with the dry saturated vapor state, and the hotwork that discharges in condensation process is the driving heat of gas-liquid separator.
7. water-saving solar gas turbine according to claim 1 and the heat generating system that Ka Linna circulates and combines, is characterized in that, the complementary process of described solar energy and alternative fuel does not need to arrange solar energy storage apparatus, and alternative fuel is rock gas.
8. water-saving solar gas turbine according to claim 1 and the Ka Linna circulation heat generating system of combine, is characterized in that, described combined cycle is circulated and formed by solar energy and fossil fuel complementary drive pressurized air brayton cycle and Ka Linna.
9. water-saving solar gas turbine according to claim 8 and the Ka Linna circulation heat generating system of combining, it is characterized in that, at the bottom of described Ka Linna, circulation is take ammonia water mixture as working medium, this ammonia water mixture, at the fume afterheat that absorbs in exhaust heat boiler after the regenerator cooling, was excited into hot gas and entered the turbine acting.
CN2011100861933A 2011-04-07 2011-04-07 Thermal power generation system combined by water saving type solar combustion gas turbine and kalina cycle Expired - Fee Related CN102734094B (en)

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