CN108301927A - Solar energy high-temperature heat collection heat accumulation gas turbine generating set - Google Patents
Solar energy high-temperature heat collection heat accumulation gas turbine generating set Download PDFInfo
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- CN108301927A CN108301927A CN201611090624.2A CN201611090624A CN108301927A CN 108301927 A CN108301927 A CN 108301927A CN 201611090624 A CN201611090624 A CN 201611090624A CN 108301927 A CN108301927 A CN 108301927A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to energy technology fields, disclose a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, including：Combustion chamber, solar thermal collector, chemical heat storage tank, triple valve A and triple valve B；Chemical heat storage tank has high temperature side and low temperature side；An outlet connection solar thermal collector compressed air inlet of triple valve A, the import of another outlet connection triple valve B, the low temperature side of the one outlet connection chemical heat storage tank of triple valve B, the import of another outlet connection combustion chamber；Solar thermal collector compressed air outlet connects the import of the high temperature side and combustion chamber of chemical heat storage tank, and the low temperature side of chemical heat storage tank also connects the import of combustion chamber.The solar energy high-temperature heat collection heat accumulation gas turbine generating set has less Fossil fuel consumption, more long life and electricity quality of preferably surfing the Internet.
Description
The present invention claims application No. is CN 201610668545.9, the applying date is August in 2016 12, entitled one
The priority of the Chinese invention patent application of kind high-temperature heat-gathering heat accumulation gas turbine electrical generation process and device.
Technical field
The present invention relates to energy technology field, more particularly to a kind of solar energy high-temperature heat collection heat accumulation gas turbine power generation dress
It sets.
Background technology
Global solar radiation amount about 1.7 × 1017W, wherein China account for about 1% (1.8 × 1015W is equivalent to 1.9 ten thousand
Hundred million tons of mark coal/years), about 700 times of the current year total energy consumption in China, solar energy contains huge potentiality to be exploited.Using too
This cleaning of sun energy, free of contamination regenerative resource have important meaning for mitigating current fossil energy, pollution pressure etc.
Justice.
Solar energy generation technology mainly has photovoltaic and photo-thermal two ways.Since solar energy energy-flux density is relatively low, energy
Fluctuate bigger, larger to the impact of power grid using parallel network power generation, if using battery power storage, cost is too high.
Solar energy thermal-power-generating technology is will to be changed into thermal energy after solar focusing, then carry out what heat to power output generated electricity
Technology.Meanwhile gas turbine generating system have it is efficient, start fast, peaking performance is good, the construction period is short, floor space is small,
The series of advantages such as water consumption is few and maintenance cost is low.Gas turbine generating system is applied to solar energy thermal-power-generating technology, profit
With the compressed air in solar energy heating gas turbine, the combustion-supporting rear power generation in combustion chamber is entered back into, fossil fuel can be greatly decreased
Consumption.
However, as it was noted above, since solar energy energy-flux density is relatively low, energy fluctuation is bigger.When sunlight strong,
Heat collector temperature may be caused excessively high, reduce its operation stability.And when sunlight deficiency, then lead to the compression into combustion chamber
The temperature of air is inadequate, it is difficult to play the technique effect for saving energy consumption.
Invention content
The purpose of the present invention is to provide a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, the solar energy is high
Warm heat-collecting heat-storage gas turbine generating set has less Fossil fuel consumption, more long life and electric matter of preferably surfing the Internet
Amount.
In order to solve the above technical problem, the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine power generation dresses
It sets, including：Combustion chamber, solar thermal collector, chemical heat storage tank, triple valve A and triple valve B；
Chemical heat storage tank has high temperature side and low temperature side；
An outlet connection solar thermal collector compressed air inlet of triple valve A, another outlet connection triple valve B into
Mouthful, the low temperature side of the one outlet connection chemical heat storage tank of triple valve B, the import of another outlet connection combustion chamber；
Solar thermal collector compressed air outlet connects the import of the high temperature side and combustion chamber of chemical heat storage tank, chemical heat storage
The low temperature side of tank also connects the import of combustion chamber；
When solar energy abundance, air enters solar thermal collector through triple valve A, heats and improve temperature, from solar energy
The air part that heat collector comes out enters chemical heat storage tank, passes through each layer chemical heat storage object successively from high temperature side to low temperature side
Matter, another part enter combustion chamber auxiliary combustion；
When solar energy deficiency, air enters chemical heat storage tank through triple valve A and triple valve B, from low temperature side to high temperature side
Pass through each stratification heat-retaining mass successively, the heat discharged by chemical heat storage tank enters back into combustion chamber auxiliary combustion.
Current, it is obtained for and is widely applied there are many heat-storing method.Different, the Ke Yifen according to the storage form of energy
It is following three kinds：Sensible heat heat accumulation, latent heat heat accumulation and chemical heat storage.
Sensible heat heat accumulation is that heat is stored or discharged using the rising or decline of heat accumulating own temperature.This heat accumulation
Mode principle in several heat accumulation modes is most simple, technology is most ripe, and using being also widest, but storage density is relatively
Low, volume is big.
Latent heat heat accumulation, which is using heat-storage medium in solidification ,/fusing, condensation/gasifies, sublimates/distils and the phase of other forms
The principle for being absorbed during becoming or releasing latent heat of phase change carries out heat accumulation.Which has storage density big, storage system process temperature
The advantages that fluctuation range is small, but phase-change material cannot generally also serve as heat-carrying agent, need to design independent heat exchanger in system,
And phase-change material may have corrosion to chamber wall.
Chemical heat storage refers to storing thermal energy using the reaction heat of reversible chemical reaction, when the balance temperature higher than reversible reaction
When spending, when less than the equilibrium temperature of reversible reaction, then exothermic reaction occurs for the heat accumulation reaction absorbed heat.Chemical heat storage
Storage density highest in these three modes.
In terms of existing technologies, solar energy high-temperature heat collection heat accumulation gas turbine generating set of the invention, passes through profit
With the chemical heat storage of chemical heat storage tank, while having above-mentioned storage density high this advantage so that the energy of solar energy
It can be stored in chemical heat storage tank, reduce influence of the energy fluctuation to system of solar energy, therefore increase system
Power generation stability, and make generating dutation extended, improve online electricity quality.Pass through fuel, solar energy, chemistry storage
Heat etc. is provided multiple forms of energy to complement each other, and energy can obtain cascade utilization, the consumption for improving system effectiveness, reducing fossil fuel, therefore is had
There is better economy.By solar thermal collector coupling chemistry heat storage can, the temperature wave of solar thermal collector outlet is stabilized
It is dynamic, solar thermal collector overtemperature is prevented, the safe and stable operation of solar thermal collector is ensure that, extends service life.
In solar heat power generation system, a key component is solar thermal collector.After its function will focus
Sunlight is converted into thermal energy.Since solar thermal collector is operated in high temperature, high pressure and non-uniform high intensity solar radiation etc.
Under adverse circumstances, design or control it is improper easily cause damage even occur safety accident.Therefore solar thermal collector is steady
It is highly important to determine safe operation.Preferably, air collector tube is arranged in solar thermal collector, the four of air collector tube
Week is filled with heat collector chemical heat storage substance.When the temperature in solar thermal collector is higher than the reaction of heat collector chemical heat storage substance
When equilibrium temperature, heat collector chemical heat storage substance, which reacts, to absorb extra heat, is stored as chemical energy, when solar energy collection
When temperature in hot device is less than the reaction equilibrium temperature of heat collector chemical heat storage substance, heat release occurs for heat collector chemical heat storage substance
Reaction releases chemical energy, and heat is exchanged heat to the air in air collector tube, high temperature is heated to, makes up solar energy
Deficiency, stablize solar thermal collector temperature.Therefore, heat collector chemical heat storage substance is filled in the surrounding of air collector tube,
The service life of solar thermal collector can further be extended.
Further, preferably, the lower part of air collector tube is also filled with heat collector chemical heat storage substance；
Air collector tube is spirally distributed in solar thermal collector；
Alternatively, center outward radiation profiles of the air collector tube by solar thermal collector；
Alternatively, air collector tube is distributed along the circumferencial direction of solar thermal collector.
The air collector tube being spirally distributed can increase thermocontact area, improve heat transfer heat transfer efficiency, and from center
The air collector tube of radiation profiles is then easier to the design of heat transmission and corollary equipment outward, can reduce cost.Along too
The air collector tube of the circumferencial direction distribution of positive energy heat collector can then maximally utilise the space of solar thermal collector, carry
The density of high air collector tube.
In addition, preferably, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Turbine and backheat
Device is provided with hot-fluid side and cold flow side in regenerator；
The import of the outlet connection turbine of combustion chamber, the hot fluid side-entrance of the outlet connection regenerator of turbine；
The outlet on cold flow side is connected with the import of triple valve A；
The tail gas of turbine discharge enters hot-fluid side, for heating the air positioned at cold flow side.
After being arranged and increasing regenerator, the tail gas being discharged from turbine flows through the hot-fluid side of regenerator, Ke Yili
The air through cold flow side is heated with the heat of tail gas, so that the heat of tail gas can obtain more efficient utilization, into one
The overall energy consumption for reducing to step solar energy high-temperature heat collection heat accumulation gas turbine generating set, improves energy utilization efficiency.
Further, preferably, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：UTILIZATION OF VESIDUAL HEAT IN fills
It sets, residual heat using device is connected with the outlet on the hot-fluid side of regenerator；
The tail gas of turbine further recycles thermal energy by entering residual heat using device behind hot-fluid side.
Via the tail gas of regenerator backheat, then via residual heat using device recovery waste heat so that the heat of tail gas obtains
Cascade utilization, therefore preferably improve the utilization ratio of energy.
Further, preferably, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Air inducing pipeline and
Air-introduced machine；Solar thermal collector is open arranges；
Air inducing pipeline is connect with solar thermal collector, and is connected to the import of residual heat using device, and air-introduced machine is arranged in remaining
The outlet of heat utilization device.When air-introduced machine works, air enters solar thermal collector from environment, then by air inducing pipeline, into
Enter into residual heat using device.
The air of circulation improves the heat transfer effect in solar thermal collector.Extra heat can be introduced waste heat
Using device, energy efficiency is improved.
Moreover, when being filled with chemical heat storage substance in solar thermal collector, the air capacity to be circulated by air-introduced machine control,
Heat absorption and the exothermic reaction rate that chemical heat storage substance can preferably be controlled, to obtain better heat accumulation and exothermal effect.
In addition, preferably, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes compressor and generator,
The import on the outlet connection cold flow side of compressor, for inputting compressed air to cold flow side；Generator is connected with compressor
It connects, compressor is connected with turbine.
Compressor is carried out as wasted work component after can compressing atmospheric air.When turbine is connected with compressor
When connecing, turbine work done can provide a part of power by connected main shaft for compressor so that system is not necessarily to as pressure
Mechanism of qi is additionally provided power.Moreover, because the temperature for the exhaust gas being expelled directly out from turbine is still very high, generator and thoroughly
The reliability that flat machine is directly connected to is bad, and generator is connected by compressor with turbine, then can preferably extend
The service life of generator.
In addition, preferably, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Throttle valve；
Solar thermal collector connects the import of combustion chamber by throttle valve.It can be controlled from solar energy heating using throttle valve
Device is to indoor air mass flow of burning.
By adjusting the aperture of throttle valve, the flow point to air when by throttle valve and chemical heat storage tank may be implemented
Match so that can still ensure stable air supply temperature under different solar energy states.
In addition, preferably, be provided at least two chemical heat storage substances in chemical heat storage tank, chemical heat storage substance it is anti-
The high temperature side of equilibrium temperature chemically heat storage can is answered to be reduced successively to low temperature side.Setting, can be with there are many when chemical heat storage substance
So that sequentially forming temperature gradient in chemical heat storage tank.In air these chemistry are passed sequentially through via the pipeline in chemical heat storage tank
When heat-retaining mass, temperature exchange can sequentially occur with these heat-retaining masses, and then improve the rate temperature change of air, improve
The energy storage effect of chemical heat storage tank.
Further, preferably, direction of the chemical heat storage substance from high temperature side towards low temperature side forms multiple chemistry storages
Thermosphere, and be spaced apart between layers.It is spaced apart between can making different layers and is not likely to produce interference and heat exchange, in turn
It being capable of preferably temperature gradients.
It is noted that in the present invention, chemical heat storage substance can be the one of carbonate, alkali, metal oxide etc.
Kind is a variety of, wherein metal oxide may include the oxidation of Cr, Li, Mg, Pb, Pt, Sb, Mn, U, Ba, Co, Rh, Cu, Fe, V
One or more of object.By taking carbonate as an example, then when temperature is higher than carbonate decomposition synthetic reaction equilibrium temperature, carbonic acid
Salt decomposes, and absorbs heat；Conversely, carbonate synthesis salt, discharges heat.By taking metal oxide as an example, when temperature is aoxidized higher than metal
When the redox reaction equilibrium temperature of object, reduction reaction occurs, absorbs heat, while discharging oxygen；When temperature is less than metal
When the redox reaction equilibrium temperature of oxide, oxidation reaction occurs, absorbs oxygen, while discharging heat.
Description of the drawings
Fig. 1 is the schematic diagram of first embodiment of the invention solar energy high-temperature heat collection heat accumulation gas turbine generating set；
Fig. 2 is the schematic diagram of first embodiment of the invention solar thermal collector；
Fig. 3 is the schematic diagram of second embodiment of the invention solar energy high-temperature heat collection heat accumulation gas turbine generating set；
Fig. 4 is the schematic diagram of third embodiment of the invention solar energy high-temperature heat collection heat accumulation gas turbine generating set；
Fig. 5 is the schematic diagram of four embodiment of the invention solar energy high-temperature heat collection heat accumulation gas turbine generating set；
Fig. 6 is the schematic diagram of fifth embodiment of the invention solar energy high-temperature heat collection heat accumulation gas turbine generating set；
Fig. 7 is the schematic diagram of sixth embodiment of the invention solar energy high-temperature heat collection heat accumulation gas turbine generating set；
Fig. 8 is the schematic diagram of seventh embodiment of the invention chemical heat storage tank；
Fig. 9 is the schematic diagram of eighth embodiment of the invention solar thermal collector.
Reference sign：
1- compressors；2- turbines；3- regenerators；4- triple valves A；5- residual heat using devices；6- air-introduced machines；7- solar energy
Heat collector；8- chemical heat storage tanks；9- chemical heat storage layers；10- triple valves B；11- throttle valves；The combustion chambers 12-；13- generators；14-
Solar thermal collector compressed air inlet；15- air inducing pipeline connectors；16- air collector tubes；17- solar energy light collecting mouths；18-
Heat collector chemical heat storage substance；19- solar thermal collector compressed air outlets.
Specific implementation mode
Embodiment one
The first embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, referring to
Shown in Fig. 1 and Fig. 2 is combined, including：Combustion chamber 12, solar thermal collector 7, chemical heat storage tank 8, triple valve A4 and triple valve B10；
Chemical heat storage tank 8 has high temperature side and low temperature side；
An outlet connection solar thermal collector compressed air inlet 14 of triple valve A4, another outlet connection triple valve B10
Import, the low temperature side of the one outlet connection chemical heat storage tank 8 of triple valve B10, another outlet connection combustion chamber 12 into
Mouthful；
Solar thermal collector compressed air outlet 19 connects the import of the high temperature side and combustion chamber 12 of chemical heat storage tank 8, changes
The low temperature side for learning heat storage can 8 also connects the import of combustion chamber 12；
When solar energy abundance, air enters solar thermal collector 7 through triple valve A4, heats and improve temperature, from the sun
The air part that energy heat collector 7 comes out enters chemical heat storage tank 8, passes through each layer chemical heat storage successively from high temperature side to low temperature side
Substance, another part enter 12 auxiliary combustion of combustion chamber；
When solar energy deficiency, air enters chemical heat storage tank 8 through triple valve A4 and triple valve B10, supreme from low temperature side
Each stratification heat-retaining mass is passed through in warm side successively, and the heat discharged by chemical heat storage tank 8 enters back into the auxiliary combustion of combustion chamber 12
It burns.
Those of ordinary skill in the art can according to the prior art come using from combustion chamber 12 out high-temperature fuel gas come
Form a variety of functions.For example, high-temperature flue gas can be enabled to enter turbine acting, and then drive the generator hair being connected with turbine
Electricity does not show further in Fig. 1 since specific flue gas application method and electricity-generating method are the state of the art
Go out.
Current, it is obtained for and is widely applied there are many heat-storing method.Different, the Ke Yifen according to the storage form of energy
It is following three kinds：Sensible heat heat accumulation, latent heat heat accumulation and chemical heat storage.
Sensible heat heat accumulation is that heat is stored or discharged using the rising or decline of heat accumulating own temperature.This heat accumulation
Mode principle in several heat accumulation modes is most simple, technology is most ripe, and using being also widest, but storage density is relatively
Low, volume is big.
Latent heat heat accumulation, which is using heat-storage medium in solidification ,/fusing, condensation/gasifies, sublimates/distils and the phase of other forms
The principle for being absorbed during becoming or releasing latent heat of phase change carries out heat accumulation.Which has storage density big, storage system process temperature
The advantages that fluctuation range is small, but phase-change material cannot generally also serve as heat-carrying agent, need to design independent heat exchanger in system,
And phase-change material may have corrosion to chamber wall.
Chemical heat storage refers to storing thermal energy using the reaction heat of reversible chemical reaction, when the balance temperature higher than reversible reaction
When spending, when less than the equilibrium temperature of reversible reaction, then exothermic reaction occurs for the heat accumulation reaction absorbed heat.Chemical heat storage
Storage density highest in these three modes.
It is noted that in the present embodiment, chemical heat storage substance can be carbonate, alkali, metal oxide etc.
It is one or more, wherein metal oxide may include Cr, Li, Mg, Pb, Pt, Sb, Mn, U, Ba, Co, Rh, Cu, Fe, V
One or more of oxide.By taking carbonate as an example, then when temperature is higher than carbonate decomposition synthetic reaction equilibrium temperature,
Carbonate decomposition absorbs heat；Conversely, carbonate synthesis salt, discharges heat.By taking metal oxide as an example, when temperature is higher than metal
When the redox reaction equilibrium temperature of oxide, reduction reaction occurs, absorbs heat, while discharging oxygen；When temperature is less than
When the redox reaction equilibrium temperature of metal oxide, oxidation reaction occurs, absorbs oxygen, while discharging heat.
In terms of existing technologies, solar energy high-temperature heat collection heat accumulation gas turbine generating set of the invention, passes through profit
With the chemical heat storage of chemical heat storage tank 8, while having above-mentioned storage density high this advantage so that the energy of solar energy
It can be stored in chemical heat storage tank 8, reduce solar energy light collecting mouth 17 caused by the energy fluctuation of solar energy and receive
The unstable influence to system of illumination, therefore increase the power generation stability of system, and so that generating dutation is extended,
Improve the power generation stability of online electricity quality and system.It is provided multiple forms of energy to complement each other by fuel, solar energy, chemical heat storage etc., energy energy
Cascade utilization is accessed, the consumption for improving system effectiveness, reducing fossil fuel, therefore there is better economy.Pass through
7 coupling chemistry heat storage can 8 of solar thermal collector stabilizes the temperature fluctuation of the outlet of solar thermal collector 7, prevents solar energy heating
7 overtemperature of device, ensure that the safe and stable operation of solar thermal collector 7, extends service life.
Embodiment two
Second embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, and second
Embodiment is being further improved for first embodiment, is mainly theed improvement is that, in second embodiment of the present invention,
Shown in Figure 3, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Throttle valve 11；
Solar thermal collector 7 connects the import of combustion chamber 12 by throttle valve 11.It can be controlled from too using throttle valve 11
Air mass flow in positive energy heat collector 7 to combustion chamber 12.
By adjusting the aperture of throttle valve 11, may be implemented to air when by throttle valve 11 and chemical heat storage tank 8
Assignment of traffic, so that can still ensure stable air supply temperature under different solar energy states.
Embodiment three
Third embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, third
Embodiment is being further improved for the first, second embodiment, is mainly theed improvement is that, in the third embodiment party of the present invention
Shown in Figure 4 in formula, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Turbine 2 and regenerator 3 return
Hot-fluid side and cold flow side are provided in hot device 3；
Combustion chamber 12 outlet connection turbine 2 import, turbine 2 outlet connection regenerator 3 hot-fluid side into
Mouthful；
The outlet on cold flow side is connected with the import of triple valve A4；
The tail gas that turbine 2 is discharged enters hot-fluid side, for heating the air positioned at cold flow side.
After being arranged and increasing regenerator 3, the tail gas being discharged from turbine 2 flows through the hot-fluid side of regenerator 3, can be with
The air through cold flow side is heated using the heat of tail gas, so that the heat of tail gas can obtain more efficient utilization, into
The overall energy consumption for reducing to one step solar energy high-temperature heat collection heat accumulation gas turbine generating set, improves energy utilization efficiency.
Embodiment four
The 4th embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, and the 4th
Embodiment is being further improved for third embodiment, is mainly theed improvement is that, in the 4th embodiment of the present invention,
Shown in Figure 5, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Compressor 1 and generator 13, compressor
The import on 1 outlet connection cold flow side, for inputting compressed air to cold flow side；Generator 13 is connected with compressor 1,
Compressor 1 is connected with turbine 2.
Compressor 1 is used as wasted work component, is carried out after can compressing atmospheric air.When 1 phase of turbine 2 and compressor
When connection, 2 work done of turbine can be that compressor 1 provides a part of power by connected main shaft so that system is not necessarily to
It is additionally provided power for compressor 1.Moreover, because the temperature for the exhaust gas being expelled directly out from turbine 2 is still very high, power generation
The reliability that machine 13 and turbine 2 are directly connected to is bad, and generator 13 is connected by compressor 1 with turbine 2, then may be used
Preferably to extend the service life of generator 13.
Embodiment five
The 5th embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, and the 5th
Embodiment is that third, the 4th embodiment are further improved, and is mainly theed improvement is that, in the 5th embodiment party of the present invention
Shown in Figure 6 in formula, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Residual heat using device 5.
Residual heat using device 5 is connected with the outlet on the hot-fluid side of regenerator 3；
The tail gas of turbine 2 further recycles thermal energy by entering residual heat using device 5 behind hot-fluid side.
Via the tail gas of 3 backheat of regenerator, then via 5 recovery waste heat of residual heat using device so that the heat of tail gas obtains
Cascade utilization, therefore preferably improve the utilization ratio of energy.
Embodiment six
The sixth embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, and the 6th
Embodiment is being further improved for the 5th embodiment, is mainly theed improvement is that, in the sixth embodiment of the present invention,
Shown in Figure 7, solar energy high-temperature heat collection heat accumulation gas turbine generating set further includes：Air inducing pipeline and air-introduced machine 6；Solar energy
Heat collector 7 is open arranges；
Air inducing pipeline is connect with solar thermal collector 7, and is connected to the import of residual heat using device 5, and air-introduced machine 6 is arranged in
The outlet of residual heat using device 5.When air-introduced machine 6 works, air enters solar thermal collector 7 from environment, then passes through induced duct
Road enters in residual heat using device 5.
The air of circulation improves the heat transfer effect in solar thermal collector 7.More than extra heat being introduced
Heat utilization device 5 improves energy efficiency.
Embodiment seven
The 7th embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, and the 7th
Embodiment is the first being further improved to sixth embodiment, is mainly theed improvement is that, the 7th in the present invention implements
It is shown in Figure 8 in mode, at least two chemical heat storage substances, the reaction of chemical heat storage substance are provided in chemical heat storage tank 8
The high temperature side of equilibrium temperature chemically heat storage can 8 reduces successively to low temperature side.Setting can make there are many when chemical heat storage substance
It obtains in chemical heat storage tank 8 and sequentially forms temperature gradient.In air these chemistry are passed sequentially through via the pipeline in chemical heat storage tank 8
When heat-retaining mass, temperature exchange can sequentially occur with these heat-retaining masses, and then improve the rate temperature change of air, improve
The energy storage effect of chemical heat storage tank 8.
Further, shown in Figure 7, in the present embodiment, chemical heat storage substance is from high temperature side towards low temperature side
Direction forms multiple chemical heat storage layers 9, and is spaced apart between layers.It is spaced apart between can making different layers and is not easy to produce
Raw interference and heat exchange, and then being capable of preferably temperature gradients.
Embodiment eight
The 8th embodiment of the present invention provides a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, and the 8th
Embodiment is being further improved for the first to the 7th embodiment, is mainly theed improvement is that, the 8th in the present invention implements
In mode, air collector tube 16 is arranged in solar thermal collector 7.
In solar heat power generation system, a key component is solar thermal collector 7.After its function will focus
Sunlight is converted into thermal energy.Since solar thermal collector 7 is operated in high temperature, high pressure and non-uniform high intensity solar radiation etc.
Under adverse circumstances, design or control it is improper easily cause damage even occur safety accident.Therefore solar thermal collector 7 is steady
It is highly important to determine safe operation.
It is shown in Figure 9, in the present embodiment, air collector tube 16, air heat-collecting are arranged in solar thermal collector 7
Pipe 16 is u-shaped, is distributed along the circumferencial direction of solar thermal collector 7.It is distributed along the circumferencial direction of solar thermal collector 7
Air collector tube 16 can then maximally utilise the space of solar thermal collector 7, improve the density of air collector tube 16.Value
It obtains one and is mentioned that in the present embodiment air collector tube 16 can also be spirally distributed in solar thermal collector 7；Or
Person, air collector tube 16 by solar thermal collector 7 center radiation profiles outward.The air collector tube 16 being spirally distributed
Can increase thermocontact area, improve heat transfer heat transfer efficiency, and from center outward radiation profiles air collector tube 16 then more
It is easy to the design of heat transmission and corollary equipment, cost can be reduced.
Even more important, in the present embodiment, the surrounding of air collector tube 16 is filled with heat collector chemical heat storage substance
18, moreover, the lower part of air collector tube 16 is also filled with heat collector chemical heat storage substance 18.Temperature in solar thermal collector 7
When degree is higher than the reaction equilibrium temperature of heat collector chemical heat storage substance 18, heat collector chemical heat storage substance 18 reacts and will absorb
Extra heat, is stored as chemical energy, when the temperature in solar thermal collector 7 is less than the reaction of heat collector chemical heat storage substance 18
When equilibrium temperature, heat collector chemical heat storage substance 18 occurs exothermic reaction and releases chemical energy, and heat is exchanged heat to air
Air in thermal-collecting tube 16, is heated to high temperature, makes up the deficiency of solar energy, stablizes the temperature of solar thermal collector 7.Cause
This can further extend solar thermal collector 7 in the surrounding filling heat collector chemical heat storage substance 18 of air collector tube 16
Service life.
It is noted that signified heat collector chemical heat storage substance 18 in the present embodiment, and it is set to chemical storage
Chemical heat storage substance in hot tank 8 can be substance of the same race, can also be substance not of the same race.Those of ordinary skill in the art can be with
The type for the different chemical heat storage substances for being set to each position is selected according to actual temperature needs.
In addition, when being provided with the air-introduced machine 6 and air inducing pipeline that sixth embodiment is addressed, it is shown in Figure 9, too
It is positive to be additionally provided with air inducing pipeline connector 15 on heat collector 7, and air inducing pipeline connector 15 is set to solar thermal collector 7
Bottom.By the air capacity of the control circulation of air-introduced machine 6, it can preferably control the heat absorption of heat collector chemical heat storage substance 18 and put
Thermal reaction rate, to obtain better heat accumulation and exothermal effect.
It will be understood by those skilled in the art that in above-mentioned each embodiment, in order to keep reader more preferably geographical
It solves the application and proposes many technical details.But even if without these technical details and based on the respective embodiments described above
Various changes and modifications can also realize each claim of the application technical solution claimed substantially.Therefore, in reality
In, can to the above embodiment, various changes can be made in the form and details, without departing from the present invention spirit and model
It encloses.
Claims (10)
1. a kind of solar energy high-temperature heat collection heat accumulation gas turbine generating set, including：Combustion chamber (12), solar thermal collector (7),
Chemical heat storage tank (8), triple valve A (4) and triple valve B (10)；
The chemical heat storage tank (8) has high temperature side and low temperature side；
One outlet connection solar thermal collector compressed air inlet (14) of the triple valve A (4), another outlet connection described three
The import of port valve B (10), the one outlet of the triple valve B (10) connect the low temperature side of the chemical heat storage tank (8), another
Outlet connects the import of the combustion chamber (12)；
Solar thermal collector compressed air outlet (19) connects high temperature side and the combustion chamber (12) of the chemical heat storage tank (8)
Import, the low temperature side of the chemical heat storage tank (8) also connects the import of the combustion chamber (12)；
When solar energy abundance, air enters the solar thermal collector (7) through triple valve A (4), heats and improve temperature, from
The air part that the solar thermal collector (7) comes out enters chemical heat storage tank (8), passes through successively from high temperature side to low temperature side
Each stratification heat-retaining mass, another part enter the combustion chamber (12) auxiliary combustion；
When solar energy deficiency, air enters the chemical heat storage tank (8) through triple valve A (4) and triple valve B (10), from low temperature
Side to high temperature side passes through each stratification heat-retaining mass successively, and the heat discharged by chemical heat storage tank (8) enters back into the combustion
Burn room (12) auxiliary combustion.
2. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 1, it is characterised in that：It is described too
Positive to arrange air collector tube (16) in heat collector (7), the surrounding of the air collector tube (16) is filled with heat collector chemistry
Heat-retaining mass (18).
3. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 2, it is characterised in that：
The under-filled of the air collector tube (16) has heat collector chemical heat storage substance (18)；The air collector tube (16) exists
It is spirally distributed in the solar thermal collector (7)；
Alternatively, center outward radiation profiles of the air collector tube (16) by the solar thermal collector (7)；
Alternatively, the air collector tube (16) is distributed along the circumferencial direction of the solar thermal collector (7).
4. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 1, it is characterised in that：Also wrap
It includes：Turbine (2) and regenerator (3), the regenerator (3) is interior to be provided with hot-fluid side and cold flow side；
The outlet of the combustion chamber (12) connects the import of the turbine (2), and the outlet of the turbine (2) connects regenerator
(3) hot fluid side-entrance；
The outlet on the cold flow side is connected with the import of the triple valve A (4)；
The tail gas of turbine (2) discharge enters the hot-fluid side, for heating the air positioned at the cold flow side.
5. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 4, it is characterised in that：Also wrap
It includes：Residual heat using device (5), the residual heat using device (5) are connected with the outlet on the hot-fluid side of the regenerator (3)；
The tail gas of the turbine (2) is by entering the residual heat using device (5) behind the hot-fluid side, further recycling is hot
Energy.
6. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 5, it is characterised in that：Also wrap
It includes：Air inducing pipeline and air-introduced machine (6)；The solar thermal collector (7) is open arranges；
The air inducing pipeline is connect with the solar thermal collector (7), and is connected to the import of residual heat using device (5), described
Air-introduced machine (6) is arranged in the outlet of residual heat using device (5).
7. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 4, it is characterised in that：Further include
Compressor (1) and generator (13), the outlet of the compressor (1) connect the import on the cold flow side, are used for described cold
Fluid side inputs compressed air；
The generator (13) is connected with compressor (1), and the compressor (1) is connected with turbine (2).
8. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 1, it is characterised in that：Also wrap
It includes：Throttle valve (11)；
The solar thermal collector (7) connects the import of the combustion chamber (12) by the throttle valve (11).
9. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 1, it is characterised in that：Describedization
It learns and is provided at least two chemical heat storage substances in heat storage can (8), the reaction equilibrium temperature of the chemical heat storage substance is from described
The high temperature side of chemical heat storage tank (8) reduces successively to low temperature side.
10. solar energy high-temperature heat collection heat accumulation gas turbine generating set according to claim 9, it is characterised in that：It is described
Chemical heat storage substance forms multiple chemical heat storage layers (9) from the high temperature side towards the direction of the low temperature side, and layer and layer it
Between be spaced apart.
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| US15/587,524 US10494996B2 (en) | 2016-08-12 | 2017-05-05 | Device of high-temperature solar turbine power generation with thermal energy storage |
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| CN108301927B (en) | 2020-02-21 |
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