CN106288435A - A kind of solar energy thermal-power-generating unit - Google Patents
A kind of solar energy thermal-power-generating unit Download PDFInfo
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- CN106288435A CN106288435A CN201510303124.1A CN201510303124A CN106288435A CN 106288435 A CN106288435 A CN 106288435A CN 201510303124 A CN201510303124 A CN 201510303124A CN 106288435 A CN106288435 A CN 106288435A
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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
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Abstract
The present invention provides a kind of solar energy thermal-power-generating unit, including, solar energy heating unit: be used for collecting solar energy, and convert solar energy into the heat energy of working medium；Also include: combustion engine unit: include gas turbine, for driving electromotor to generate electricity the conversion of heat into kinetic energy of described working medium；Described working medium is air.The solar energy thermal-power-generating unit that the present invention provides, it is possible to utilize the advantage that the focusing ratio of tower type solar energy thermal power generation technology is high more fully.
Description
Technical field
The present invention relates to power field, particularly relate to a kind of solar thermal power plants.
Background technology
Solar energy thermal-power-generating is the renewable energy power generation technology of a kind of cleaning.Compared to wind-power electricity generation and photovoltaic
Generating, solar heat power generation system can make electric energy output protect by configuring heat accumulation and conventional energy resource combustion-compensating device
Keep steady fixed, improve power generating quality.In the case of current energy worsening shortages, solar energy thermal-power-generating is to have most
May progressively substitute thermoelectricity, undertake basis electric load new energy technology.
Solar energy thermal-power-generating divides according to the type of skill and includes slot type, tower, dish-style and linear Fresnel formula four
Plant the type of skill.Wherein, tower technology focusing ratio is high, operating temperature is high, and therefore its generating efficiency is higher,
It is big that cost declines potentiality.Compared with the solar energy thermal-power-generating of other type of skill, tower type solar energy thermal power generation will
It it is the important directions of solar energy thermal-power-generating development.
Conventional tower-type solar thermal power generating system, mainly by heliostat array, high tower, heat extractor, heat transfer
The part composition such as medium, heat exchanger, hold over system, control system and Turbo-generator Set.Tower type solar
In heat generating system, the settled date, lens group was centered by high tower, in fan-shaped or circle-shaped distribution, by solar light focusing
To the heat extractor being positioned on high tower, the heat transfer medium (working medium) in heating heat extractor.Conventional tower too
The power section of sun energy heat generating system is similar with coal fired power plant, and high-temperature heat-transfer medium is used for heating water and produces steaming
Vapour, steam enters Steam Turbine generating, and exhaust steam in steam turbine condensed device condensation Posterior circle uses.
The main advantage of tower type solar energy thermal power generation technology is that its focusing ratio is high, generally between 200～700,
Therefore its working medium can be heated to more than 1000 DEG C.But, at conventional tower-type solar thermal power generating system
Under configuration, using steam turbine power generation, working medium operating temperature is relatively low.The advantage that focusing ratio height is brought does not obtains
To making full use of.
Summary of the invention
In view of this, the present invention provides a kind of solar energy thermal-power-generating unit, it is possible to utilize more fully tower too
Sun can the high advantage of the focusing ratio of hot generation technology.
The solar energy thermal-power-generating unit provided based on the above-mentioned purpose present invention, including, solar energy heating unit:
For collecting solar energy, and convert solar energy into the heat energy of working medium；Also include:
Combustion engine unit: be connected with described solar energy heating unit, including gas turbine, for by described working medium
Conversion of heat into kinetic energy drive electromotor generate electricity；
Described working medium is air.
Optionally, described solar energy thermal-power-generating unit also includes:
Temperature of Working control unit: be connected with solar energy heating unit, for imposing a condition lower cooling first
Described air enters temperature during described solar energy thermal-power-generating unit so that described air enters solar electrical energy generation
Temperature during the working medium receiving mechanism of system is close to the Temperature of Working under working medium receiving mechanism declared working condition.
Optionally, described working medium receiving mechanism is compressor；Described combustion engine unit includes that compressor, air are saturating
Flat, electromotor；Wherein,
Compressor: be connected with described solar energy heating unit, for inputting the described sun by the air in environment
Can heat collection unit；
Air turbine: be connected with described solar energy heating unit and described electromotor, is used for utilizing solar energy collection
The air of hot cell output produces the mechanical energy for driving described electromotor.
Optionally, described combustion engine unit also includes:
Heat exchanger: be arranged between described compressor and solar energy heating unit, with compressor and solar energy collection
Hot cell connects, before the air in described environment inputs described solar energy heating unit, it is achieved institute
State the waste gas of air turbine discharge and the heat exchange of the air of described compressor conveying.
Optionally, the power of described combustion engine unit is less than 10MW.
Optionally, described solar energy heating unit includes: solar heat absorber, heliostat field and high tower；Its
In:
Solar heat absorber: be arranged at described high top of tower, be used for absorbing solar heat, enabling utilize
Described solar heat heats described working medium；
Heliostat field: be arranged at below described high tower and around described high tower, for focusing on solar heat
Described solar heat absorber.
Optionally, the heliostat in described heliostat field is less than apart from the ultimate range of described solar heat absorber
Setting value.
Optionally, described Temperature of Working control unit includes absorption cooling and warming water machine and charge air cooler；Wherein:
Absorption cooling and warming water machine: be connected with described charge air cooler, is used for making refrigeration working medium produce refrigeration required
Cold；
Charge air cooler: be arranged at the air entrance location of compressor, is used for utilizing absorption cooling and warming water machine
The cold produced cools down by the air entering working medium receiving mechanism so that described air enters working medium and connects
Temperature during receipts mechanism is close to the intake air temperature under working medium receiving mechanism declared working condition.
Optionally, described refrigeration working medium is water；Described absorption cooling and warming water machine specifically includes: absorber,
Solution pump, generator, condenser, choke valve, vaporizer；Wherein:
Solution pump: be connected with absorber and generator, for sending after the lithium-bromide solution supercharging in absorber
Enter generator；
Generator: be connected with described combustion engine unit, for utilizing the heat entrained by waste gas of combustion engine unit to add
Hot lithium bromide weak solution, thus separate out steam；
Condenser: be connected with described generator, condenses for the steam producing described generator,
Produce liquid water；
Choke valve: be connected with described condenser, for from the output of described condenser, through this choke valve
Liquid water carries out blood pressure lowering；
Vaporizer: be connected with described choke valve, for liquid water that carried by described choke valve, after blood pressure lowering
Evaporation, produces steam, produces cold so that refrigeration working medium can carry described cold and enter while evaporation
Enter charge air cooler.
Absorber: be connected with vaporizer, for absorbing the steam that vaporizer produces, with generator generation
Lithium bromide concentrated solution mixes, so that lithium-bromide solution concentration reduces.
From the above it can be seen that the solar energy thermal-power-generating unit that the present invention provides, use air as work
Matter, substitutes the Rankine (Rankine) of solar electrical energy generation in prior art with Brayton (Bo Langdeng) circulation
Circulation, breaks through temperature limiting.According to thermodynamics ultimate principle, the heat to power output efficiency of therrmodynamic system mainly takes
Certainly in high/low temperature thermal source.Conventional tower type solar thermo-power station utilize steam for working medium, the circulation of its working medium
Circulate for Rankine.At present, owing to being restricted by material and technical elements, ultra supercritical coal-fired unit
The highest Temperature of Working at about 600 DEG C.The present invention substitutes Rankine circulation with Brayton circulation, prominent
Broken temperature limiting, can effectively play the advantage of tower type solar high concentration ratio.
Secondly, the solar energy thermal-power-generating unit of the embodiment of the present invention uses the combustion engine unit that output is less,
Realize the distributed utilization of tower type solar thermoelectricity.The reduction of combustion engine unit output makes the light thermo-power station can
Build in a modular manner and run.Modularized design can realize quickly designing, installing, expansible
Property is strong.Each collection thermal tower can be safeguarded respectively, can improve the availability in whole power station.Due to the tower system of modularity
The installation scale of system single column is less, and the distance of farthest heliostat distance set thermal tower is close, thus to heliostat
Control require relatively low, the hot spot divergence problem of tower type solar heliostat field can be avoided, make Temperature of Working
Lifting more secure.
The solar energy thermal-power-generating unit of the embodiment of the present invention passes through Temperature of Working control unit under imposing a condition
Reduce temperature during working medium entrance solar energy thermal-power-generating unit such that it is able to improve the work of air receiver mechanism
Efficiency.In a particular embodiment, described Temperature of Working control unit utilizes the waste heat of combustion engine unit institute waste air
Freeze, improve energy utilization rate.
Accompanying drawing explanation
Fig. 1 is the solar energy thermal-power-generating set structure schematic diagram of the embodiment of the present invention.
Detailed description of the invention
In order to provide effective implementation, the invention provides following embodiment, attached below in conjunction with description
The embodiment of the present invention is illustrated by figure.
Present invention firstly provides a kind of solar energy thermal-power-generating unit, structure as it is shown in figure 1, include, solar energy
Heat collection unit 101: be used for collecting solar energy, and convert solar energy into the heat energy of working medium；Also include:
Combustion engine unit 102: include gas-turbine, for driving generating by the conversion of heat into kinetic energy of described working medium
Machine generates electricity；
Described working medium is air.
In prior art, conventional tower type solar thermo-power station uses Rankine to circulate as its dynamical system,
Working medium is steam.According to thermodynamics ultimate principle, the heat to power output efficiency of therrmodynamic system depends primarily on height
Low-temperature heat source.At present, owing to being restricted by material and technical elements, use steam as the combustion of working medium
The highest Temperature of Working of machine unit is at about 600 DEG C.The present invention uses air as working medium, at combustion engine unit
Brayton circulation is formed, due to air energy compared with steam between 102 and solar energy heating unit 101
Enough in combustion engine unit, it is heated to higher temperature, solar electrical energy generation unit energy the most provided by the present invention
Enough the temperature of working medium is increased substantially such that it is able to by the high concentration ratio of tower technology solar electrical energy generation unit
Advantage is substantially more brought into play.
In a particular embodiment, described air includes the air in general environment.
In the specific embodiment of the invention, referring still to Fig. 1, described solar energy thermal-power-generating unit also includes:
Temperature of Working control unit 103: for first impose a condition the described air of lower cooling enter described in too
Temperature during sun energy thermal electric generator group so that described air enters the working medium receiving mechanism of solar electrical energy generation unit
Time temperature close to the Temperature of Working under air receiver mechanism declared working condition.
The working medium that the solar energy thermal-power-generating unit of the present invention is used is air, and air can obtain from environment,
After usage waste gas is entered in environment, form circulation；Described working medium receiving mechanism, it should in environment
Air air is compressed waiting when entering solar energy thermal-power-generating unit the mechanism of process.Due at great majority
In the case of, the air receiver mechanism of solar power system is compressor, and when entering the Air Temperature of compressor
When spending high, the work efficiency of the air receiver mechanism of such as compressor etc can be caused appreciable impact, with
As a example by single-shaft gas turbine, ambient temperature is compressor inlet temperature, when temperature is reduced to-20 DEG C from 15 DEG C
Time, system output work and efficiency increase by 25%～35% and 6%～about 10% respectively；When compressor inlet temperature
When degree is increased to 40 DEG C by 15 DEG C, it is left that system output work and efficiency reduce by 17%～23% and 5%～8% respectively
Right.Gas-turbine inlet gas cooling is improved efficiency measure the most effective, reliable, safe, simple.
In the specific embodiment of the invention, described first imposes a condition can be time conditions, such as, every year
March is to October；Described first condition can also be temperature conditions, and such as, temperature is more than or equal to 15 DEG C.
In the specific embodiment of the invention, referring still to Fig. 1, described working medium receiving mechanism is compressor 1021,
Described combustion engine unit 102 includes compressor 1021, air turbine 1022, electromotor 1023；Wherein,
Compressor 1021: be connected with described solar energy heating unit 101, for by defeated for the air in environment
Enter described solar energy heating unit 101；
Air turbine 1022: be connected with described solar energy heating unit 101, be used for utilizing solar energy heating
The air of unit output produces the mechanical energy for driving described electromotor 1023.
In the above-described embodiments, air, after compressor 1021 adherence pressure, initially enters solar energy heating
Unit 101 is heated to be high temperature air, and high temperature air subsequently enters air turbine 1022 and does work so that empty
Gas turbine 1022 drives electromotor 1023 to export electric energy.
In the specific embodiment of the invention, described combustion engine unit 102 also includes:
Heat exchanger 1024: be arranged between described compressor 1021 and solar energy heating unit 101, with pressure
Mechanism of qi 1021, heat exchanger 1024 and solar energy heating unit 101 connect, for the sky in described environment
Gas inputs before described solar energy heating unit 101, it is achieved the waste gas of described air turbine 1022 discharge with
The heat exchange of the air of described compressor 1021 conveying.
Air, after compressor 1021 adherence pressure, initially enters heat exchanger 1024, absorbs air turbine 1022
Waste heat in the flue gas of outlet.It is passed through solar energy heating unit 101 through the preliminary air heated up, makes Air Temperature
Degree is promoted further.High temperature air subsequently enters air turbine 1022 and does work, and its aerofluxus enters heat exchange
Device 1024 and compressor 1021 exiting flue gas carry out heat exchange.
In some embodiments of the invention, the power of described combustion engine unit 102 is less than 10MW.
In the specific embodiment of the invention, described combustion engine unit 102 is little combustion engine device or miniature combustion engine device.
Owing to combustion engine unit uses little combustion engine device or miniature combustion engine device, its output is little such that it is able to reduce whole
The scale of individual solar energy thermal-power-generating unit, it is achieved the distributed utilization of tower type solar thermoelectricity.Unit scale
Reduction enables to the solar energy heating unit of solar energy thermal-power-generating unit and avoids hot spot divergence problem, it is possible to
Modular mode is built and is run, and i.e. respectively arranges a solar energy heating unit in different modules, electricity
Stand by arrange multiple module realize more electric energy export.Modularized design can realize quickly designing,
Installing, extensibility is strong.Each collection thermal tower can be safeguarded respectively, can improve the availability in whole power station.Due to
The installation scale of the single high tower of modularity tower system is less, and the distance of farthest heliostat distance high tower is close,
Thus the control to heliostat requires relatively low, the hot spot divergence problem of tower type solar heliostat field can be avoided,
The lifting making Temperature of Working is more secure.
In some embodiments of the invention, described solar energy heating unit 101 includes: solar heat absorber
1011, heliostat field 1012 and high tower 1013；Wherein:
Solar heat absorber 1011: be arranged at described high tower 1013 top, be used for absorbing solar heat and adding
The described working medium of heat；
Heliostat field 1012: be arranged at below described high tower and around described high tower 1013, for by the sun
Heat can focus on described solar heat absorber 1011.
Wherein, solar heat absorber 1011 is the heat extractor with air as working medium, is positioned at described high tower 1013
On, receive the sunlight converged from heliostat field 1012.
In some embodiments of the invention, described heliostat field 1012 is apart from described solar heat absorber 1011
Ultimate range less than setting value.
Described heliostat field 1012 is heliostat field apart from the ultimate range of described solar heat absorber 1011
In 1012, between heliostat and solar heat absorber 1011 that distance solar heat absorber 1011 is farthest
Distance.
The heliostat field distribution area of conventional tower type solar energy thermal power generation unit of the prior art is very big, one
The extensive single column tower type solar thermo-power station of 100MW, farthest heliostat distance high tower may be public 1
More than in.Remote optically focused can cause hot spot to dissipate seriously, difficulty focusing, thus has the precision of heliostat
The highest requirement.If solar power tower cannot accurately focus on, the temperature raising of working medium yet suffers from limiting.
And the combustion engine unit output of the solar energy thermal-power-generating unit of the embodiment of the present invention is less than 10MW, thus
The distribution area of heliostat field 1012 is very big without being made, and in a particular embodiment, can make heliostat field
Heliostat in 1012 and solar heat absorber distance value are in a less scope, it is to avoid during optically focused
Hot spot dissipates, the problem of difficulty focusing.
In some embodiments of the invention, described Temperature of Working control unit 103 includes absorption cooling and warming water machine
With charge air cooler 1037: wherein:
Absorption cooling and warming water machine: be connected with described charge air cooler, is used for making refrigeration working medium produce refrigeration required
Cold；
Charge air cooler 1037: be arranged at the air entrance location of compressor 1021, is used for utilizing absorption
The cold that formula cold warm water machine produces cools down by the air entering working medium receiving mechanism so that described air
Temperature when entering working medium receiving mechanism reduces and close to the air of reception under working medium receiving mechanism declared working condition
Temperature.In the specific embodiment of the invention, charge air cooler 1037 is arranged at the air of compressor 1021
At entry position, or effective cooling-part of charge air cooler 1037 is arranged on the air of compressor 1021
At entry position；
Described refrigeration working medium is water；Described absorption cooling and warming water machine specifically includes: generator 1031,
Condenser 1032, solution pump 1033, absorber 1034, choke valve 1035, vaporizer 1036.
Solution pump 1033: be connected with absorber 1034 and generator 1031, for by absorber 1034
Lithium-bromide solution supercharging after send into generator 1031.
Generator 1031: be connected with described combustion engine unit 102, for utilizing the waste gas of combustion engine unit 102
In heat, heat lithium bromide weak solution, thus separate out steam.After steam separates out, generator 1031
In lithium-bromide solution concentration absolute altitude, send absorber 1034 back to by corresponding valve and pipeline.Specifically
In embodiment, as it is shown in figure 1, generator 1031 is connected with the heat exchanger 1024 of combustion engine unit 102, from
And further with the heat in the waste gas of heat exchanger 1024 discharge；Due to the air in combustion engine unit 102
The air that turbine 1022 is discharged, after heat exchanger 1024 heat exchange, still suffers from certain waste heat, so discharge
Air travel further into Temperature of Working control unit 103, Temperature of Working control unit 103 utilizes combustion engine list
The waste heat of 102 waste airs of unit, can produce cooling source, thus improve the utilization rate of solar heat further；
In a particular embodiment, 102 waste airs of combustion engine unit can be directly discharged in surrounding, due to discharge
Thing is air, does not results in environmental pollution；
Condenser 1032: be connected with described generator 1031, for produce described generator 1031
Steam condenses, and produces liquid water.Concrete, condenser 1032 is internally provided with heat-transfer pipe, passes
Being passed through cooling water in heat pipe, the steam that described generator 1031 produces flows through outside heat-transfer pipe, heat transfer
The high-pressure steam condensation that generator 1031 is produced by the condensed water in pipe forms highly pressurised liquid water；
Choke valve 1035: be connected with described condenser 1032, for the height through this choke valve 1035
Press liquid water carry out blood pressure lowering；
Vaporizer 1036: be connected with described choke valve 1035, for carried by choke valve 1035, fall
Liquid water evaporation after pressure, produces steam, produces cold so that refrigeration working medium can be taken while evaporation
Described cold is carried to enter charge air cooler 1037；
Absorber 1034: be connected with vaporizer 1036, for collecting the steam that vaporizer 1036 produces.
In specific embodiment, absorber 1034 is also connected with generator 1031, for receiving the bromine that generator produces
Change lithium concentrated solution, after concentrated solution mixes with steam, produce lithium bromide weak solution；
In above-described embodiment, Temperature of Working control unit 103 is an Absorption Cooling System, production cold
Amount, for cooling down the intake air of compressor 1021, improves exerting oneself and efficiency of combustion engine unit 102.
In other embodiments of the present invention, Temperature of Working control unit 103 can be not dependent on combustion engine unit
Any type of independent cooling mechanism of 102 waste airs.
In some embodiments of the invention, under imposing a condition second, Temperature of Working control unit 103 is closed,
Waste heat in 102 waste airs of combustion engine unit can be collected for heating etc..
In a particular embodiment, under summer condition, the air themperature of compressor 1021 entrance is higher, in order to
Reduce the air themperature of compressor 1021 entrance, improve exerting oneself and efficiency of miniature combustion engine system, enter the sun
The air of energy thermal electric generator group first passes around charge air cooler 1037 and cools down, and cooling low-temperature receiver is Temperature of Working control
Unit 103 processed.Air themperature after charge air cooler 1037 cools down low can reach about 10 DEG C, enters
Compressor 1021 adherence pressure, the compression ratio of air is depended on setting of combustion engine unit 102 by compressor 1021
The standby parameter such as type, output.Air after boosting enters heat exchanger 1024 and air turbine 1022
The hot-air heat exchange of air exit.Hot-air after preliminary intensification enters solar heat absorber 1011, will
Temperature rises to about 900 DEG C further, does work subsequently into air turbine 1022, drives electromotor 1023
Generating output electric energy.During hot-air entrance heat exchanger 1024 cooling of the air exit of air turbine 1022 is
Warm air, enters Temperature of Working control unit 103 and freezes.
From the above it can be seen that the solar energy thermal-power-generating unit that the present invention provides, use air as work
Matter, substitutes the Rankine circulation of solar electrical energy generation in prior art, breaks through temperature limit with Brayton circulation
System, will not too much increase cost because of the change of working medium simultaneously.According to thermodynamics ultimate principle, heating power system
The heat to power output efficiency of system depends primarily on high/low temperature thermal source.Conventional tower type solar thermo-power station utilizes water to steam
Gas is working medium, and the circulation of its working medium is Rankine circulation.At present, due to by material and technical elements
Restriction, the highest Temperature of Working of ultra supercritical coal-fired unit is at about 600 DEG C.The present invention follows with Brayton
Ring substitutes Rankine circulation, breaks through temperature limiting, can effectively play the excellent of tower type solar high concentration ratio
Gesture.
Secondly, the solar energy thermal-power-generating unit of the embodiment of the present invention uses the combustion engine unit that output is less,
Realize the distributed utilization of tower type solar thermoelectricity.The reduction of combustion engine unit output makes the light thermo-power station can
Build in a modular manner and run.Modularized design can realize quickly designing, installing, expansible
Property is strong.Each collection thermal tower can be safeguarded respectively, can improve the availability in whole power station.Due to the tower system of modularity
The installation scale of system single column is less, and the distance of farthest heliostat distance set thermal tower is close, thus to heliostat
Control require relatively low, the hot spot divergence problem of tower type solar heliostat field can be avoided, make Temperature of Working
Lifting more secure.
The solar energy thermal-power-generating unit of the embodiment of the present invention passes through Temperature of Working control unit under imposing a condition
Reduce temperature during working medium entrance solar energy thermal-power-generating unit such that it is able to improve the work of air receiver mechanism
Efficiency.In a particular embodiment, described Temperature of Working control unit utilizes the waste heat of combustion engine unit institute waste air
Freeze, improve energy utilization rate.
Should be appreciated that the multiple embodiments described by this specification are merely to illustrate and explain the present invention, not
For limiting the present invention.And in the case of not conflicting, the embodiment in the application and the spy in embodiment
Levy and can be mutually combined.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a solar energy thermal-power-generating unit, including, solar energy heating unit: be used for collecting solar energy,
And convert solar energy into the heat energy of working medium；It is characterized in that, also include:
Combustion engine unit: be connected with described solar energy heating unit, including gas turbine, for by described working medium
Conversion of heat into kinetic energy drive electromotor generate electricity；
Described working medium is air.
Solar energy thermal-power-generating unit the most according to claim 1, it is characterised in that also include:
Temperature of Working control unit: be connected with solar energy heating unit, in institute under imposing a condition first
State the temperature cooling down described air when air enters described solar energy thermal-power-generating unit so that described air enters
Temperature during the working medium receiving mechanism of solar electrical energy generation unit is connect close to working medium receiving mechanism declared working condition is lower
The rated temperature of matter of knocking off.
Solar energy thermal-power-generating unit the most according to claim 2, it is characterised in that described working medium connects
Receipts mechanism is compressor；Described combustion engine unit includes compressor, air turbine, electromotor；Wherein,
Compressor: be connected with described solar energy heating unit and described air turbine, for by the sky in environment
Gas inputs described solar energy heating unit；
Air turbine: be connected with described solar energy heating unit and described electromotor, is used for utilizing solar energy collection
The air of hot cell output produces for driving the mechanical energy of described electromotor and driving compressor.
Solar energy thermal-power-generating unit the most according to claim 3, it is characterised in that described combustion engine list
Unit also includes:
Heat exchanger: be arranged between described compressor and solar energy heating unit, with compressor and solar energy collection
Hot cell connects, before the air in described environment inputs described solar energy heating unit, it is achieved institute
State the waste gas of air turbine discharge and the heat exchange of the air of described compressor conveying.
Solar energy thermal-power-generating unit the most according to claim 1, it is characterised in that described combustion engine list
The power of unit is less than 10MW.
Solar energy thermal-power-generating unit the most according to claim 2, it is characterised in that described solar energy
Heat collection unit includes: solar heat absorber, heliostat field and high tower；Wherein:
Solar heat absorber: be arranged at described high top of tower, be used for absorbing solar heat, enabling utilize
Described solar heat heats described working medium；
Heliostat field: be arranged at below described high tower and around described high tower, for focusing on solar heat
Described solar heat absorber.
Solar energy thermal-power-generating unit the most according to claim 6, it is characterised in that described heliostat
Heliostat in Chang is less than setting value apart from the ultimate range of described solar heat absorber.
Solar energy thermal-power-generating unit the most according to claim 2, it is characterised in that described working medium temperature
Degree control unit includes absorption cooling and warming water machine and charge air cooler；Wherein:
Absorption cooling and warming water machine: be connected with described charge air cooler, is used for making refrigeration working medium produce refrigeration required
Cold；
Charge air cooler: be arranged at the air entrance location of compressor, is used for utilizing absorption cooling and warming water machine
The cold produced cools down by the air entering working medium receiving mechanism so that described air enters working medium and connects
Temperature during receipts mechanism is close to the temperature of the air of reception under working medium receiving mechanism declared working condition.
Solar energy thermal-power-generating unit the most according to claim 8, it is characterised in that
Described refrigeration working medium is water；Described absorption cooling and warming water machine specifically includes: absorber, solution pump,
Generator, condenser, choke valve, vaporizer；Wherein:
Solution pump: be connected with absorber and generator, for sending after the lithium-bromide solution supercharging in absorber
Enter generator；
Generator: be connected with described combustion engine unit, for utilizing the heat entrained by waste gas of combustion engine unit to add
Hot lithium bromide weak solution, thus separate out steam；
Condenser: be connected with described generator, condenses for the steam producing described generator,
Produce liquid water；
Choke valve: be connected with described condenser, for from the output of described condenser, through this choke valve
Liquid water carries out blood pressure lowering；
Vaporizer: be connected with described choke valve, for liquid water that carried by described choke valve, after blood pressure lowering
Evaporation, produces steam, produces cold so that refrigeration working medium can carry described cold and enter while evaporation
Enter charge air cooler；
Absorber: be connected with vaporizer, for absorbing the steam that vaporizer produces, the bromination produced with generator
Lithium concentrated solution mixes so that lithium-bromide solution concentration reduces.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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