CN109595074A - Gas turbine engine systems and its heat accumulation and exothermic processes - Google Patents
Gas turbine engine systems and its heat accumulation and exothermic processes Download PDFInfo
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- CN109595074A CN109595074A CN201710937838.7A CN201710937838A CN109595074A CN 109595074 A CN109595074 A CN 109595074A CN 201710937838 A CN201710937838 A CN 201710937838A CN 109595074 A CN109595074 A CN 109595074A
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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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/064—Devices for producing mechanical power from solar energy with solar energy concentrating means having a gas turbine cycle, i.e. compressor and gas turbine combination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Abstract
The invention discloses a kind of gas turbine engine systems and heat accumulations and exothermic method.The system includes combustion chamber and power generator, and combustion chamber enters power generator for generating electricity for generating high-temperature fuel gas, high-temperature fuel gas；Further include: granule circulating device and air compressor；Solar heat absorber, for absorbing solar energy；Solar energy reformer, connect with solar heat absorber, is provided with reducing substances in solar energy reformer；Heat exchanger is provided with reaction chamber and heat exchanging chamber in heat exchanger, and the both ends of reaction chamber are connect with solar energy reformer and granule circulating device respectively, and the both ends of heat exchanging chamber are connected with air compressor and combustion chamber respectively；The both ends of granule circulating device are separately connected reaction chamber and solar heat absorber.The system can be realized in a manner of metal oxide energy storage complementary with reducing substances, and the external heat sources such as solar energy are stored and according to the demand of gas turbine in the form of chemical energy to its heat supply, and have the characteristics that system effectiveness height, volume compact, at low cost.
Description
Technical field
The present invention relates to energy technology field more particularly to a kind of gas turbine engine systems and heat accumulation and exothermic processes.
Background technique
Global solar radiation amount about 1.7 × 1017W, wherein China accounts for about 1% (1.8 × 1015W is equivalent to 1.9 ten thousand
Hundred million tons of mark coal/years), it is 680 times of the current year total energy consumption in China, solar energy contains huge potentiality to be exploited.Solar energy hair
Power technology is broadly divided into photovoltaic power generation and photo-thermal power generation two major classes.There is discontinuous round the clock, photovoltaic battery panel manufacture in photovoltaic power generation
The shortcomings such as process contamination is serious, at high cost and service life is short.And solar energy thermal-power-generating can utilize cheap energy storage technology, surely
Determine the output of generated output, not only can be used as basic load power supply, but also can be used as peaking power source, therefore solar energy thermal-power-generating exists
Future has great potential.
Solar energy thermal-power-generating mainly has tank-type thermal power generation, the power generation of linear Fresnel heat, tower type thermal generation and the power generation of dish-style heat
Technology.Basic principle is mainly gathered together sunlight using optically focused parabolic mirror, is filled by photothermal conversion and heat exchange
It sets to generate steam or heat fluid driving heat engine and generate electricity；It the advantage is that the technology can absorb full wave sunlight, leads to
It crosses accumulation of heat and fuel supplement realizes continuous power generation round the clock.
Heat engine in solar heat power generation system generally uses steam turbine, system complex, inefficient.Gas turbine
It is a kind of heat engine, simple gas turbine system is made of compressor, combustion chamber and combustion gas turbine.It is big with specific power, vibration
The advantages that noise is small, and the service life is long, easy to maintain, application is more and more wider, but the efficiency of simple gas turbine circulation is lower, tail gas
It is big to discharge heat loss, is generally used in combination with water vapour Rankine cycle, improves system whole efficiency.Existing solar gas turbine
System increases solar air heat absorber in simple gas turbine system, i.e., the air come out from compressor is empty by solar energy
The preheating of gas heat dump enters back into combustion chambers burn and generates high-temperature fuel gas, finally enters combustion gas turbine and externally do work.Compared to simple
For gas turbine engine systems, solar gas expander system improves the atmospheric heat into combustion chamber, reduces fuel consumption
Amount.But either simple gas turbine system or solar gas expander system, combustion gas turbine delivery temperature is very
Height, heat loss are big.System effectiveness can be improved although with gas-steam combined cycle system, but it is excessively complicated, and cost is too
It is high.
In addition to this, the shortage and high cost of the heat chemistry energy storage technology in conjunction with solar gas turbine are also another difficulty
Topic.Energy storage technology can be divided into sensible heat energy storage, hidden heat energy storage and heat chemistry energy energy storage according to energy storage mode.Sensible heat energy storage is not change
Physical form is promoted to get up thermal energy storage by temperature, and energy storage density is lower.And hidden heat energy storage passes through phase transition forms for thermal energy
It stores, it is larger that heat is absorbed needed for the heat of transformation, therefore the energy storage of hidden heat energy storage density ratio sensible heat is high.And utilize chemical energy will too
Sun, which can store, not only makes energy storage density high, but also can be stored for a long time with room temperature, is readily transported.
The research for the high temperature solar heat chemical energy storage carried out at present is common mostly for the purpose of producing clean fuel hydrogen
Have metal oxide two-step hydrolysis hydrogen manufacturing, since first step metal oxide thermal decomposition and reduction required temperature is higher, usually exist
It is 1500 DEG C or so, very high to solar energy heat collector requirement, cause heat loss larger.And the design of high temperature solar energy-storage system is single
One, only consider a kind of thermal chemical reaction, reaction condition is harsher, and stored energy form is single, and economy and applicability are still to be tested, limit
Its commercialization has been made to promote.
Summary of the invention
It is an object of the invention to the problems low, at high cost for the existing solar gas expander system thermal efficiency, provide
A kind of storage for the gas turbine engine systems and the gas turbine engine systems that can be improved energy utilization efficiency but also reduce system cost
Heat and exothermic processes.
The purpose of the present invention is achieved through the following technical solutions:
The present invention provides a kind of gas turbine engine systems, comprising: combustion chamber and power generator, combustion chamber is for generating high temperature combustion
Gas, high-temperature fuel gas generated enter power generator and for generating electricity；
In addition, gas turbine engine systems further include:
Granule circulating device and air compressor；
Solar heat absorber, for absorbing solar energy；
Solar energy reformer, connect with solar heat absorber, is provided with reducing substances in solar energy reformer；
Heat exchanger, is provided with reaction chamber and heat exchanging chamber in heat exchanger, the both ends of reaction chamber respectively with solar energy reformer and
Granule circulating device connection, the both ends of heat exchanging chamber are connected with air compressor and combustion chamber respectively；
The both ends of granule circulating device are separately connected reaction chamber and solar heat absorber；
Several heat accumulation particles are provided in solar heat absorber, heat accumulation particle includes high-valence state metal oxide particle,
In, high-valence state metal oxide particle reacts under the action of the solar energy that solar heat absorber is absorbed, and is converted into lower valency
Metal oxide particle stores thermal energy；
Heat accumulation particle enters solar energy reformer from solar heat absorber, and reduction reaction occurs with reducing substances, wherein
Lower valency metal oxide particle is converted into metal simple-substance particle, further stores thermal energy；
Heat accumulation particle enters the reaction chamber of heat exchanger from solar energy reformer, at least partially or fully heat accumulation particle and air
Oxidation reaction occurs and generates high-valence state metal oxide particle, the sky in heat exchanging chamber is sent into the preheating of release heat from air compressor
Gas, the air after being preheated enter combustion chamber, participate in burning；
Heat accumulation particle enters granule circulating device from the reaction chamber of heat exchanger, and is transported to solar heat absorber.
In terms of existing technologies, gas turbine engine systems provided by the present invention can be realized with metal oxide and reduction
Property substance complementation energy storage mode, by the external heat sources such as solar energy with chemical energy form stable storage；And according to gas turbine
Demand is to its heat supply, to eliminate the fluctuation of solar energy, while improving the accounting of solar energy, reduces disappearing for fossil fuel
Consumption.
In addition, gas turbine engine systems provided by the present invention also have system effectiveness height, volume compact, spy at low cost
Point.Specifically, when high-valence state metal oxide is reduced to lower valency metal oxide, required temperature is relatively low,
1000 DEG C or so；And further by the temperature that lower valency metal oxide is reduced to elemental metals generally to reach 1500 DEG C with
On.Gas-turbine installation in the prior art not only causes biggish radiation loss using solar energy heating to the temperature, and
Material and manufacturing process to reactor require height, to inevitably increase system cost.And provided by the present invention
Gas turbine engine systems in, with lower valency metal oxide the anti-of reforming reaction occurs in solar energy reformer for reducing substances
Answer temperature at 1000 DEG C even hereinafter, the requirement to reactor substantially reduces, cost is effectively controlled.The reaction simultaneously is to inhale
Thermal energy is stored in the elemental metals and synthesis gas that reaction generates, the synthesis of production by thermal response in the form of chemical energy
The reaction temperature of gas and hydrogen in the combustion chamber can be higher than 1500 DEG C, much higher than the temperature of solar energy heating, meet combustion gas wheel
The hot operation demand of machine, ensure that the high efficiency of gas turbine engine systems provided by the present invention.
Preferably, the reaction chamber in heat exchanger is connected with heat exchanging chamber, air compressor is sent into the air in heat exchanging chamber
Participate in the oxidation reaction that heat accumulation particle and air occur in the reactor chamber.
Further, preferably, gas turbine engine systems provided by the present invention further include: hot tank is connected in
Between solar heat absorber and solar energy reformer；Cold tank, is connected between heat exchanger and granule circulating device；Hot tank
It is all used to keep in heat accumulation particle with cold tank.
Preferably, reducing substances set in solar energy reformer are the substance containing charcoal and/or hydrogen；Solar energy weight
Whole device is connected with combustion chamber；When heat accumulation particle enters solar energy reformer from solar heat absorber, lower valency metal oxide
Reduction reaction occurs for particle and reducing substances, is converted into metal simple-substance particle, while generating carbon monoxide and/or hydrogen, and one
Carbonoxide and/or hydrogen are admitted to combustion chamber and participate in combustion reaction.
Further, preferably, gas turbine engine systems provided by the present invention further include: be connected in solar energy
Hydrogen-manufacturing reactor between reformer and heat exchanger is provided with vapor import on hydrogen-manufacturing reactor, for being passed through vapor；System
Hydrogen reactor is connect with combustion chamber；Heat accumulation particle enters hydrogen-manufacturing reactor from solar energy reformer, wherein metal simple-substance particle with
Vapor reaction generates lower valency metal oxide particle and hydrogen, and hydrogen enters combustion chamber and participates in burning；Heat accumulation particle is from system
Hydrogen reactor enters the reaction chamber of heat exchanger.
Further, preferably, gas turbine engine systems provided by the present invention further include: steam generator and water
It pumps, is provided with exhaust gas channel and water vapor channel in steam generator, exhaust gas channel is connect with power generator, water vapor channel
One end connects power generator, and the other end connects the vapor import of hydrogen-manufacturing reactor；The tail gas that power generator generates passes through tail gas
Channel discharge, the water supply of water pump are evaporated by tail gas heating, and vapor generated enters hydrogen-manufacturing reactor by vapor import.
The present invention also provides a kind of heat accumulation of gas turbine engine systems and exothermic processes, include the following steps:
First order heat accumulation step: will include the heat accumulation particle of high-valence state metal oxide particle in solar heat absorber
At a high temperature of react, wherein high-valence state metal oxide particle is converted into lower valency metal oxide particle, stores thermal energy；
Second level heat accumulation step: heat accumulation particle enters solar energy reformer from solar heat absorber, be located at solar energy weight
Reduction reaction occurs for the reducing substances in whole device；Wherein, lower valency metal oxide particle is converted into metal simple-substance particle, into
One step stores thermal energy；
Heat release step: heat accumulation particle enters the reaction chamber of heat exchanger from solar energy reformer, at least partially or fully heat accumulation
Particle and air occur oxidation reaction and generate high-valence state metal oxide particle, and the preheating of release heat is changed from air compressor feeding
Air in hot chamber, the air after being preheated enter combustion chamber, participate in burning；
Particle circulation step: heat accumulation particle enters granule circulating device from the reaction chamber of heat exchanger, and is circulated to the sun
It can heat dump.
In terms of existing technologies, above-mentioned heat accumulation and exothermic processes are applied to gas turbine system provided by the present invention
System carries out reforming reaction using the metal oxide of reducing substances and lower valency, improves energy storage density；And metal simple-substance is raw
, the reaction condition milder lower than metal oxide two-step method hydrogen manufacturing temperature at hydrogen.In conjunction with combustion gas wheel provided by the present invention
Metal oxide energy storage is combined with gas turbine application, can preferably be realized more by machine system and heat accumulation and exothermic processes
It can complementary and reducing substances chemical energy cascade utilization.
Preferably, further including following steps between first order heat accumulation step and second level heat accumulation step: heat accumulation particle
It is temporary into hot tank；Further include following steps between second level heat accumulation step and heat release step: it is temporary that heat accumulation particle enters cold tank
It deposits.
Preferably, reducing substances are the substance containing charcoal and/or hydrogen in the heat accumulation step of the second level；Heat accumulation particle from
When solar heat absorber enters solar energy reformer, lower valency metal oxide particle therein is restored with reducing substances
Reaction, is converted into metal simple-substance particle, while generating carbon monoxide and/or hydrogen, carbon monoxide and/or hydrogen are admitted to burning
Room participates in combustion reaction.
Preferably, further including following steps between second level heat accumulation step and the heat release step: heat accumulation particle from
Solar energy reformer enters hydrogen-manufacturing reactor, and metal simple-substance particle therein is reacted with vapor generates lower valency metal oxide
Particle and hydrogen, hydrogen enter combustion chamber and participate in burning；Heat accumulation particle enters the reaction chamber of heat exchanger from hydrogen-manufacturing reactor.
Detailed description of the invention
Fig. 1 is the schematic diagram of the gas turbine engine systems of first embodiment of the invention；
Fig. 2 is the schematic diagram of the gas turbine engine systems of second embodiment of the invention.
Description of symbols:
1- solar heat absorber；The hot tank of 2-；3- solar energy reformer；4- heat exchanger；The cold tank of 5-；6- granule circulating device；
7- air compressor；The combustion chamber 8-；9- power generator；10- steam generator；11- water pump；12- hydrogen-manufacturing reactor.
Specific embodiment
Embodiment one:
First embodiment of the invention provides a kind of solar gas expander system, shown in Figure 1, comprising: combustion
Room 8 and power generator 9 are burnt, for generating high-temperature fuel gas, high-temperature fuel gas generated enters power generator 9 and is used for for combustion chamber 8
Power generation；
Further include: granule circulating device 6 and air compressor 7；
Solar heat absorber 1, for absorbing solar energy；
Solar energy reformer 3 is sequentially connected hot tank 2 and solar heat absorber 1, is provided with reduction in solar energy reformer 3
Property substance；And solar energy reformer 3 is connected with combustion chamber 8；
Heat exchanger 4, reaction chamber and heat exchanging chamber are provided in heat exchanger 4, and one end of reaction chamber and solar energy reformer 3 connect
It connects, the other end is sequentially connected cold tank 5 and granule circulating device 6；The both ends of heat exchanging chamber respectively with air compressor 7 and combustion chamber 8
It is connected；
The both ends of granule circulating device 6 are separately connected cold tank 5 and solar heat absorber 1.
Below with reference to specific heat accumulation and exothermic processes example, to illustrate the work of the gas turbine engine systems in present embodiment
Make mode.
Heat accumulation particle is provided in solar heat absorber 1, heat accumulation particle in the present embodiment is with high-valence state metal oxygen
Compound cobaltosic oxide (Co3O4) for particle.Co3O4Particle absorbs the effect of the solar energy focused in solar heat absorber 1
Under, when being heated to 900 DEG C -1000 DEG C, reduction reaction occurs, absorbs thermal energy, discharges oxygen, generates the CoO of lower valency, it is such as anti-
It answers shown in equation (1).The CoO of lower valency enters the hot temporarily storage of tank 2, and solar energy is changed into chemical energy form and is deposited
Storage.
2Co3O4→6CoO+O2 (1)
The CoO particle of lower valency enters solar energy reformer 3, with the reducing substances methane in solar energy reformer 3
(CH4) reforming reaction occurs under the heating of solar energy, it generates metal simple-substance Co and contains carbon monoxide (CO) and hydrogen (H2)
Synthesis gas continue for solar energy to be changed into the storage of chemical energy form as shown in reaction equation (2).
CoO+CH4→Co+CO+2H2 (2)
It is heat accumulation process, the energy inputted in solar gas expander system represented by aforesaid equation (1) and (2)
There are chemical energy and solar energy, wherein solar energy proportion can be up to 80% or more.
The metal simple-substance Co of generation is sent out out of solar energy reformer 3 enters heat exchanger 4 reaction chamber with the oxygen in air
Raw oxidation reaction, generates high-valence state metal oxide Co3O4, and a large amount of thermal energy (800 DEG C -900 DEG C) are discharged, such as reaction equation
(3) shown in.
3Co+2O2→Co3O4 (3)
Aforesaid equation is exothermic process represented by (3).
Release thermal energy preheating from air compressor 7 be sent into heat exchanger 4 heat exchanging chamber in air, the air being preheated into
Enter combustion chamber 8, combustion reaction occurs with the synthesis gas generated in solar energy reformer 3, generates high-temperature fuel gas and (is greater than 1200
DEG C), high-temperature fuel gas enters electrisity generator of engine 9, for making electrisity generator of engine 9 generate electricity.High-valence state metal generated
Oxide Co3O4It comes out from the reaction chamber of heat exchanger 4, into the cold temporarily storage of tank 5, is conveyed again using granule circulating device 6
To solar heat absorber 1, particle circulation is completed.
To sum up, in the above-mentioned heat accumulation and exothermic process carried out using the solar gas expander system of present embodiment,
Contain following steps:
First order heat accumulation step: will include the heat accumulation particle of high-valence state metal oxide particle in solar heat absorber 1
It is reacted at a high temperature of interior, wherein high-valence state metal oxide particle is converted into lower valency metal oxide particle, stores thermal energy；
Second level heat accumulation step: enable heat accumulation particle from solar heat absorber 1 enter solar energy reformer 3, be located at the sun
Reduction reaction occurs for the reducing substances in energy reformer 3；Wherein, lower valency metal oxide particle is converted into metal simple-substance
Grain, further stores thermal energy；
Heat release step: heat accumulation particle is enabled to enter the reaction chamber of heat exchanger 4, heat accumulation particle and air from solar energy reformer 3
Oxidation reaction occurs and generates high-valence state metal oxide particle, release heat preheating is sent into heat exchanging chamber from air compressor 7
Air, the air after being preheated enter combustion chamber, participate in burning；
Particle circulation step: heat accumulation particle enters granule circulating device 6 from the reaction chamber of heat exchanger 4, and is circulated to too
Positive energy heat dump 1.
It should be noted that in the above-described embodiment, the focusing in solar heat absorber 1 and solar energy reformer 3 is too
Sunlight is by one of tower condenser system, disc type condensation system, trench light condensing system or linear Fresnel formula condenser system
Or a variety of offers.High-valence state metal oxide can be in the high-valence state oxide of iron, manganese, cobalt, copper, barium, antimony, chromium, tin, cadmium
One or more.Reducing substances can be one or more of coal, petroleum, natural gas, biomass, Huo Zheqi
Derivative.Those skilled in the art, which can according to need, to be selected, this does not constitute technical solution of the present invention and limits.
In the above-described embodiment, power generator 9 includes turbine (combustion gas turbine) and generator, is burnt in combustion chamber 8
The high-temperature fuel gas of generation is the gas of high temperature and pressure, then goes through turbine (combustion gas turbine) expansion work, pushes turbine (combustion gas
Turbine) drive the generator as external load rotor to rotate together at high speed, the chemical energy for realizing fuel is partially converted into machinery
Function, and electric work is exported by generator.
In terms of existing technologies, gas turbine engine systems of the invention are realized with metal oxide and reducing substances
The mode of complementary energy storage, by external heat sources such as solar energy with the storage of chemical energy form stable；And according to the demand pair of gas turbine
Its heat supply to eliminate the fluctuation of solar energy, while improving the accounting of solar energy, reduces the consumption of fossil fuel.And
The system has the characteristics that system effectiveness height, volume compact, at low cost.
Embodiment two:
Second embodiment of the present invention provides a kind of solar gas expander system, and second embodiment is first real
The further improvement for applying mode, mainly thes improvement is that, further includes:
The hydrogen-manufacturing reactor 12 being connected between solar energy reformer 3 and heat exchanger 4 is set on hydrogen-manufacturing reactor 12
It is equipped with vapor import, for being passed through vapor；Hydrogen-manufacturing reactor 12 is connect with combustion chamber 8；Heat accumulation particle is reformed from solar energy
Device 3 enters hydrogen-manufacturing reactor 12, wherein metal simple-substance particle is reacted with vapor generates lower valency metal oxide particle and hydrogen
Gas, hydrogen enter combustion chamber 8 and participate in burning；Heat accumulation particle enters the reaction chamber of heat exchanger from hydrogen-manufacturing reactor 12.
Steam generator 10 and water pump 11, exhaust gas channel and water vapor channel are provided in steam generator 10, and tail gas is logical
Road is connect with power generator 9, and one end of water vapor channel connects power generator 9, and the water that the other end connects hydrogen-manufacturing reactor 12 steams
Gas import；The tail gas that power generator 9 generates is discharged by exhaust gas channel, and the water supply of water pump 11 is evaporated by tail gas heating, generated
Vapor hydrogen-manufacturing reactor 12 is entered by vapor import.
Below with reference to specific heat accumulation and exothermic processes example, come illustrate present embodiment gas turbine engine systems work
Mode.Wherein, high-valence state metal oxide is still with cobaltosic oxide (Co3O4) for, reducing substances are still with methane (CH4) be
Example.
Heat accumulation process is identical with first embodiment, includes high-valence state as shown in equation (1) and (2) briefly
It is reacted at a high temperature of the heat accumulation particle of metal oxide Co3O4 particle is in solar heat absorber 1, Co3O4 particle is converted into low
Valence state CoO particle stores thermal energy；Heat accumulation particle from solar heat absorber 1 enter solar energy reformer 3, be located at solar energy weight
Reduction reaction occurs for the reducing substances CH4 in whole device 3；CoO particle is converted into Co simple substance particle, further stores thermal energy.Combustion
Solar energy accounting in gas turbine system in institute's input energy can be up to 80% or more.
Be exothermic process with the main distinction of first embodiment: after completing heat accumulation process, elemental metals Co with
Vapor (H2O) enters hydrogen-manufacturing reactor 12, the CoO and H2 of lower valency is generated, as shown in equation (4).The CoO of generation is entered back into
Heat exchanger 4 is further reacted with the oxygen in air, generates high-valence state metal oxide Co3O4 particle, while discharging big calorimetric
It measures (800 DEG C -900 DEG C), as shown in reaction equation (5), preheats the compressed air come out from air compressor 7.
Co+H2O→CoO+H2 (4)
6CoO+O2→2Co3O4 (5)
Air after preheating enters combustion chamber 8, with the synthesis gas generated in solar energy reformer 3 and in hydrogen production reaction
The H generated in device 122Combustion reaction occurs, generates high-temperature fuel gas (being greater than 1200 DEG C).High-temperature fuel gas enters power generator 9 and is used for
Power generation.The tail gas that power generator 9 generates is discharged by exhaust gas channel, and the water supply of water pump 11 is evaporated by tail gas heating, generated
Vapor enters hydrogen-manufacturing reactor 12 by vapor import and reacts with elemental metals.The high-valence state gold come out from heat exchanger 4
After category oxide Co3O4 particle enters the cold temporarily storage of tank 5, solar heat absorber 1 is reentered by granule circulating device 6,
Complete particle circulation.
In the exothermic process carried out using the gas turbine engine systems of present embodiment, heat accumulation particle is from solar energy reformer
3 enter hydrogen-manufacturing reactor 12, and metal simple-substance particle Co therein is reacted with vapor generates lower valency metal oxide CoO particle
And hydrogen, hydrogen enter combustion chamber 8 and participate in burning；Heat accumulation particle enters the reaction chamber of heat exchanger 4, heat accumulation from hydrogen-manufacturing reactor 12
Particle and air occur oxidation reaction and generate high-valence state metal oxide particle, and release heat preheating is sent into from air compressor 7
Air in heat exchanging chamber, the air after being preheated enter combustion chamber, participate in burning.In addition, the gas turbine system of present embodiment
System recycles the waste heat that tail gas is discharged in power generator 9 with steam generator 11, improves system hot merit transformation efficiency, efficiency is reachable
45% or more.
Embodiment three:
Third embodiment of the present invention provides a kind of solar gas expander system, and third embodiment is first real
The improvement for applying mode or second embodiment, mainly thes improvement is that, the reaction chamber in heat exchanger 4 is connected with heat exchanging chamber,
The air that air compressor 7 is sent into heat exchanging chamber participates in the oxidation reaction that heat accumulation particle and air occur in the reactor chamber.
In the present embodiment, reaction chamber and heat exchanging chamber share the same chamber, and 7 air of air compressor participates in heat accumulation
The oxidation reaction that grain occurs in the reactor chamber with air, that is, realize direct heat exchange, so that the gas turbine system of present embodiment
The structure of system is more compact, operational process is highly efficient.
Embodiment four:
4th embodiment of the invention provides a kind of solar gas expander system, the 4th embodiment be first to
The further improvement of any one embodiment, mainly thes improvement is that in third embodiment, solar heat absorber 1, the sun
Can reformer 3, heat exchanger 4 reaction chamber in be provided with slope, and solar heat absorber 1, solar energy reformer 3 and heat exchanger
4 set gradually from eminence to lower, and heat accumulation particle moves in gas turbine engine systems from high to lower under the effect of gravity, and
Eminence is returned under the conveying of granule circulating device；Granule circulating device is auger conveyor.
In the present embodiment, the driving method for operation being flowed in gas turbine engine systems to heat accumulation particle proposes preferably
Scheme.It is worth noting that being only that driving heat accumulation particle flows in gas turbine engine systems described in present embodiment
A kind of feasible pattern of dynamic operation, as the flowing method of operation based on gravity drive.In addition to this other modes also may be selected
To drive the flowing operation of energy storage particle in systems, such as and it is not limited to driving method based on gas, based on mechanical force
Driving method etc..In addition, the granule circulating device in present embodiment can also select other than it can be auger conveyor
The device of heat accumulation particle circulatory function can be realized by selecting other, such as and be not limited to elevating scoop conveyer etc..
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, therefore, in reality substantially
In, can to above embodiment, various changes can be made in the form and details, without departing from spirit and model of the invention
It encloses.
Claims (10)
1. a kind of gas turbine engine systems, comprising:
Combustion chamber and power generator, the combustion chamber enter the power generation for generating high-temperature fuel gas, high-temperature fuel gas generated
Device simultaneously is used to generate electricity；
It is characterized in that, the gas turbine engine systems further include:
Granule circulating device and air compressor；
Solar heat absorber, for absorbing solar energy；
Solar energy reformer is connect with the solar heat absorber, is provided with reducing substances in the solar energy reformer；
Heat exchanger, is provided with reaction chamber and heat exchanging chamber in the heat exchanger, the both ends of the reaction chamber respectively with the solar energy
Reformer is connected with the granule circulating device, the both ends of the heat exchanging chamber respectively with the air compressor and the combustion chamber
It is connected；
The both ends of the granule circulating device are separately connected the reaction chamber and the solar heat absorber；
Several heat accumulation particles are provided in the solar heat absorber, the heat accumulation particle includes high-valence state metal oxide
Grain, wherein high-valence state metal oxide particle reacts under the action of the solar energy that the solar heat absorber is absorbed, conversion
For lower valency metal oxide particle, thermal energy is stored；
The heat accumulation particle enters the solar energy reformer from the solar heat absorber, occurs also with the reducing substances
Original reaction, wherein lower valency metal oxide particle is converted into metal simple-substance particle, further stores thermal energy；
The heat accumulation particle enters the reaction chamber of the heat exchanger, at least partially or fully storage from the solar energy reformer
Hot particle and air occur oxidation reaction and generate high-valence state metal oxide particle, and release heat preheating is sent into from air compressor
Air in heat exchanging chamber, the air after being preheated enter the combustion chamber, participate in burning；
The heat accumulation particle enters the granule circulating device from the reaction chamber of the heat exchanger, and is transported to the solar energy
Heat dump.
2. gas turbine engine systems according to claim 1, it is characterised in that: the reaction chamber is connected with the heat exchanging chamber
Logical, the air that the air compressor is sent into heat exchanging chamber participates in the oxidation that the heat accumulation particle and air occur in the reactor chamber
Reaction.
3. gas turbine engine systems according to claim 1, it is characterised in that: the gas turbine engine systems further include:
Hot tank is connected between the solar heat absorber and the solar energy reformer；
Cold tank is connected between the heat exchanger and the granule circulating device；
The hot tank and the cold tank are all used to keep in the heat accumulation particle.
4. gas turbine engine systems according to claim 1, it is characterised in that: the reducing substances are containing charcoal and/or hydrogen
Substance；
The solar energy reformer is connected with the combustion chamber；
When the heat accumulation particle enters the solar energy reformer from the solar heat absorber, lower valency metal oxide particle
Reduction reaction occurs with the reducing substances, is converted into metal simple-substance particle, while generating carbon monoxide and/or hydrogen, institute
It states carbon monoxide and/or hydrogen is admitted to the combustion chamber and participates in combustion reaction.
5. gas turbine engine systems as claimed in any of claims 1 to 4, it is characterised in that: the gas turbine system
System further include:
The hydrogen-manufacturing reactor being connected between the solar energy reformer and the heat exchanger, on the hydrogen-manufacturing reactor
It is provided with vapor import, for being passed through vapor；
The hydrogen-manufacturing reactor is connect with the combustion chamber；
The heat accumulation particle enters the hydrogen-manufacturing reactor from the solar energy reformer, wherein metal simple-substance particle and water steam
Solid/liquid/gas reactions generate lower valency metal oxide particle and hydrogen, and the hydrogen enters combustion chamber and participates in burning；
The heat accumulation particle enters the reaction chamber of the heat exchanger from the hydrogen-manufacturing reactor.
6. gas turbine engine systems according to claim 5, it is characterised in that: the gas turbine engine systems further include:
Steam generator and water pump are provided with exhaust gas channel and water vapor channel, the exhaust gas channel in the steam generator
It is connect with the power generator, one end of the water vapor channel connects the power generator, and it is anti-that the other end connects the hydrogen manufacturing
Answer the vapor import of device；
The tail gas that the power generator generates is discharged by the exhaust gas channel, and the water supply of the water pump is steamed by the tail gas heating
Hair, vapor generated enter the hydrogen-manufacturing reactor by the vapor import.
7. the heat accumulation and exothermic processes of a kind of gas turbine engine systems, which comprises the steps of:
First order heat accumulation step: will include height of the heat accumulation particle of high-valence state metal oxide particle in solar heat absorber
The lower reaction of temperature, wherein high-valence state metal oxide particle is converted into lower valency metal oxide particle, stores thermal energy；
Second level heat accumulation step: enabling the heat accumulation particle enter solar energy reformer from solar heat absorber, be located at it is described too
Reduction reaction occurs for the reducing substances in positive energy reformer；Wherein, lower valency metal oxide particle is converted into metal simple-substance
Particle further stores thermal energy；
Heat release step: the heat accumulation particle is enabled to enter the reaction chamber of heat exchanger from the solar energy reformer, at least partly or entirely
Heat accumulation particle described in portion and air occur oxidation reaction and generate high-valence state metal oxide particle, and release heat is preheated from air pressure
Contracting machine is sent into the air in heat exchanging chamber, and the air after being preheated enters combustion chamber, participates in burning；
Particle circulation step: the heat accumulation particle enters the granule circulating device from the reaction chamber of the heat exchanger, and is followed
Ring is to the solar heat absorber.
8. the heat accumulation and exothermic processes of gas turbine engine systems according to claim 7, which is characterized in that stored up in the first order
Further include following steps between hot step and the second level heat accumulation step:
It is temporary that the heat accumulation particle enters hot tank；
Further include following steps between the second level heat accumulation step and the heat release step:
The heat accumulation particle is temporary into cold tank.
9. the heat accumulation and exothermic processes of gas turbine engine systems according to claim 7, which is characterized in that stored up in the second level
In hot step, the reducing substances are the substance containing charcoal and/or hydrogen；
When the heat accumulation particle enters the solar energy reformer from the solar heat absorber, lower valency metal oxidation therein
Reduction reaction occurs for composition granule and the reducing substances, is converted into metal simple-substance particle, while generating carbon monoxide and/or hydrogen
Gas, the carbon monoxide and/or hydrogen are admitted to the combustion chamber and participate in combustion reaction.
10. the heat accumulation and exothermic processes of gas turbine engine systems according to claim 7, which is characterized in that in the second level
Further include following steps between heat accumulation step and the heat release step:
The heat accumulation particle enters the hydrogen-manufacturing reactor from the solar energy reformer, and metal simple-substance particle therein and water steam
Solid/liquid/gas reactions generate lower valency metal oxide particle and hydrogen, and the hydrogen enters combustion chamber and participates in burning；
The heat accumulation particle enters the reaction chamber of the heat exchanger from the hydrogen-manufacturing reactor.
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