CN208803952U - A kind of photo-thermal fused salt accumulation of heat Stirling electricity generation system - Google Patents
A kind of photo-thermal fused salt accumulation of heat Stirling electricity generation system Download PDFInfo
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- CN208803952U CN208803952U CN201821230965.XU CN201821230965U CN208803952U CN 208803952 U CN208803952 U CN 208803952U CN 201821230965 U CN201821230965 U CN 201821230965U CN 208803952 U CN208803952 U CN 208803952U
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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 utility model discloses a kind of photo-thermal fused salt accumulation of heat Stirling electricity generation systems, including photo-thermal fused salt regenerative apparatus, Stirling generating set, the photo-thermal fused salt regenerative apparatus include solar energy heat collector, fused salt tank (4), are placed with fused salt in the fused salt tank (4)；The solar energy heat collector is connect with fused salt tank (4) by the first pump for liquid salts；The Stirling generating set (7) includes hot end (5) and cold end (8)；The hot end (5) connect with solar energy heat collector, fused salt tank (4), and the fused salt tank (4) is connect with the hot end (5) of Stirling generating set (7) by the second pump for liquid salts；The utility model realizes the photo-thermal thermal-arrest and heat accumulation of solar energy heat collector by high-temperature molten salt and fused salt tank；It realizes non-integral external stirling generator, reduces the complexity and installation difficulty of dish-style photo-thermal Stirling electricity generation system；Realize the stable electric generation output of the stirling generator of whole day and full weather conditions.
Description
Technical field
The utility model, which belongs to, is related to field of energy utilization, and in particular to a kind of photo-thermal fused salt accumulation of heat Stirling power generation system
System.
Background technique
Tend to be nervous with global energy consumption, people increasingly reinforce the concern of environment.Energy shortage and environment are dirty
Dye has become the important topic for influencing people's life and restricting social development, and countries in the world all are making great efforts to develop clean new energy
Source.
Solar energy is the abundantest and reliable resource, and the energy that the sunlight that the every 40min of the earth receives is irradiated is equivalent to
The 1 year energy consumption summation in the whole world.Solar power generation is emerging renewable energy technologies, solar energy cleanliness without any pollution, can be again
Raw characteristic becomes the most strong substitute of traditional fossil energy.It is past during the decade, solar power generation is huge due to its
Potential and good environmental-protecting performance, are increasingly concerned.It is increased newly in capacity of installed generator in European Union in 2010, solar power generation is first
Secondary is more than wind-powered electricity generation, becomes European Union and increases the most renewable energy power of generator installation newly.With global solar power generating industry skill
Art progress and popularization, solar power generation will become renewable energy important after water power, wind-powered electricity generation, become power train
The important component of system.
Solar light-heat power-generation includes trough solar power generation system, tower type solar electricity generation system and disc type solar energy hair
Electric system.It is dish-style photo-thermal stirling generator that wherein current photoelectric conversion efficiency is highest.But this spy of current dish-style photo-thermal
Woods generator can only can just generate electricity under conditions of having illumination daytime, therefore what it was supplied to power grid is unstable power generation electricity
Source does not have any peak modulation capacity to power grid.It would therefore be highly desirable to develop one kind can 24 hours all weather conditions of whole day stablized
Power generation output and the technology for realizing energy storage.
In view of this, proposing the utility model.
Summary of the invention
It is above-mentioned existing to solve the purpose of this utility model is to provide a kind of photo-thermal fused salt accumulation of heat Stirling electricity generation system
Dish-style photo-thermal stirling generator night can not generate electricity and the problem of energy storage.
In order to realize the goal of the invention, the utility model adopts the following technical solution:
A kind of photo-thermal fused salt accumulation of heat Stirling electricity generation system, including photo-thermal fused salt regenerative apparatus, Stirling generating set, institute
Stating photo-thermal fused salt regenerative apparatus includes solar energy heat collector, fused salt tank, is placed with fused salt in the fused salt tank；The solar energy
Heat collector is connect with fused salt tank by the first pump for liquid salts；The Stirling generating set includes hot end and cold end；The hot end
It is connect with solar energy heat collector, fused salt tank, the hot end of the fused salt tank and Stirling generating set is connected by the second pump for liquid salts
It connects.
Preferably, the cold end is equipped with heat-exchanger rig, and the heat-exchanger rig is exchanged heat by air or water.
Preferably, the fused salt tank of the electricity generation system is connected with multiple solar energy heat collectors, and the fused salt tank can
Store the heat-collecting capacity of connected multiple solar energy heat collectors.
Preferably, one side position of hot end of the Stirling generating set is equipped with burner, and the burner can heat
The hot end provides heat for Stirling generating set hot end.
Preferably, the electricity generation system includes fused salt heat exchanging device, and the fused salt heat exchanging device is connected with fused salt tank, described molten
Fused salt in salt cellar can convert the water to steam or the external heat supply of hot water by fused salt heat exchanging device.
Preferably, the electricity generation system includes fused salt heat exchanging device, and the fused salt heat exchanging device is connected with fused salt tank；It is described this
Special woods electricity generation system and fired power generating unit electricity generation system are simultaneously set, and some vapor that the fired power generating unit generates is pumped to fused salt heat exchanging
Device, and by its heat transfer to the fused salt in fused salt heat exchanging device.
Beneficial effect
1. realizing the photo-thermal thermal-arrest and heat accumulation of solar energy heat collector by high-temperature molten salt and fused salt tank；
2. utilizing fused salt tank accumulation of heat and the defeated heat of high-temperature molten salt pipeline, non-integral external Stirling power generation may be implemented
Machine reduces the complexity and installation difficulty of dish-style photo-thermal Stirling electricity generation system；
3. driving stirling generator using fused salt tank accumulation of heat and high-temperature molten salt, whole day may be implemented 24 hours and full weather
The stable electric generation of the stirling generator of condition exports；
It generates electricity 4. non-integral external stirling generator to supplement using gas heating hot end.
Detailed description of the invention
Fig. 1 is work when the photo-thermal fused salt accumulation of heat Stirling electricity generation system of the utility model electricity generation system embodiment one has light
Schematic diagram；
Fig. 2 be the utility model electricity generation system embodiment one photo-thermal fused salt accumulation of heat Stirling electricity generation system without light when work
Schematic diagram；
Fig. 3 is Stirling electricity generation system method operating procedure in embodiment one；
Fig. 4 is that the photo-thermal fused salt accumulation of heat of the utility model electricity generation system embodiment two couples the Stirling electricity generation system of combustion gas
Working principle diagram when having light；
Fig. 5 is that the photo-thermal fused salt accumulation of heat of the utility model electricity generation system embodiment two couples the Stirling electricity generation system of combustion gas
Working principle diagram when without light；
Fig. 6 is that the photo-thermal fused salt accumulation of heat of the utility model electricity generation system embodiment two couples the Stirling electricity generation system of combustion gas
Working principle diagram when without light；
Fig. 7 is Stirling electricity generation system method operating procedure in embodiment two；
Fig. 8 is work when the photo-thermal fused salt accumulation of heat Stirling electricity generation system of the utility model electricity generation system embodiment three has light
Schematic diagram；
Fig. 9 be the utility model electricity generation system embodiment three photo-thermal fused salt accumulation of heat Stirling electricity generation system without light when work
Schematic diagram；
Figure 10 is the photo-thermal fused salt accumulation of heat Stirling electricity generation system steam heating of the utility model electricity generation system embodiment three
Schematic diagram；
Figure 11 is work when the photo-thermal fused salt accumulation of heat Stirling electricity generation system of the utility model electricity generation system example IV has light
Make schematic diagram；
Figure 12 be the utility model electricity generation system example IV photo-thermal fused salt accumulation of heat Stirling electricity generation system without light when work
Make schematic diagram；
Figure 13 is the photo-thermal fused salt accumulation of heat Stirling electricity generation system steam accumulation of heat of the utility model electricity generation system example IV
Schematic diagram；
Description of symbols
Further clearly to illustrate the connection relationship between the structure of the utility model and each component, give following attached
Icon note, and be illustrated.
Heat collector 1, condenser 2, electric heater 3, fused salt tank 4, hot end 5, burner 6, Stirling generating set 7, cold end
8, fused salt heat exchanging device 9.
Description of symbols through the above attached drawings can be more clearly understood and illustrate in conjunction with the embodiments of the present invention
The technical solution of the utility model.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below, so that those skilled in the art can be more
Good understanding the utility model can be simultaneously practiced, but the utility model range claimed is not limited to be embodied
Range described in mode.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Embodiment one
A kind of photo-thermal fused salt accumulation of heat Stirling electricity generation system, as shown in Figure 1, the electricity generation system includes photo-thermal fused salt accumulation of heat
Device, Stirling generating set 7, the photo-thermal fused salt regenerative apparatus include solar energy heat collector, fused salt tank 4.The sun
Energy heat collector includes heat collector 1, condenser 2, and the condenser 2 assembles sunlight to heat collector 1, the heat collector 1
Convert light energy into thermal energy.
Accumulation of heat working medium is placed in the fused salt tank 4, the accumulation of heat working medium is salt；Electric heating is equipped in the fused salt tank 4
Device 3, the electric heater 3 are used to accumulation of heat working medium being heated to fluid state.In the fused salt tank 4 regenerator temperature between 50 DEG C~
1000 DEG C, the fused salt includes in alkali or alkaline earth metal and halide, silicate, carbonate, nitrate and phosphate
Any one or a few combination, the fused salt is binary salt, ternary salt or multiplexed combination salt.
The solar energy heat collector is connect with fused salt tank 4 by the first pump for liquid salts, and first pump for liquid salts can will melt
The accumulation of heat working medium of fluid state is pumped to heat collector 1 in salt cellar 4.
The Stirling generating set 7 includes hot end 5 and cold end 8, and hot end 5 is connect with heat collector 1, fused salt tank 4, described
Fused salt tank 4 is connect with the hot end 5 of Stirling generating set 7 by the second pump for liquid salts.The cold end 8 is equipped with heat-exchanger rig, described
Cold water is connected in heat-exchanger rig, cold water absorbs after heat-exchanger rig the after-heat of cold end 8 and heated up, to flow out hot water use
In heat supply or domestic hot-water.
In the fused salt tank 4 the accumulation of heat working medium of fluid state can the first pump for liquid salts enter heat collector 1, can also pass through second
Pump for liquid salts enters the hot end 5 of Stirling generating set 7.
The fused salt tank 4 of the electricity generation system is connected with multiple solar energy heat collectors, the size setting of the fused salt tank 4
The heat-collecting capacities of corresponding connected multiple solar energy heat collectors can be stored by meeting, and meet this of whole day 24 hours
The heat of special woods power generator or heat demand.
The Stirling generating set 7 is stirling generator.
Such as Fig. 1, when there is light, the accumulation of heat working medium of the fluid state in the fused salt tank 4 enters thermal-arrest by the first pump for liquid salts
The received thermal energy converted by solar energy of heat collector 1 is absorbed after device 1, is warming up to high-temperature molten salt, high-temperature molten salt enters through piping
The hot end 5 of Stirling generating set 7 makes hot end 5 and cold end 8 form the temperature difference so that hot end 5 be made to heat up, for Stirling power generation dress
7 offer power are set, Stirling generating set 7 generates electricity.Fused salt tank 4 is returned to through pipeline in the fluid fused salt after cooling of hot end 5, thus
Formation recycles.Lead to cold water or air (along the direction R1) in the heat-exchanger rig of the cold end 8, cold water or air are by heat exchange dress
It postpones the after-heat for absorbing cold end 8 and heats up, to flow out hot water (along the direction R2) for heat supply or domestic hot-water.
Such as Fig. 2, when unglazed or light is weak, the working medium in 3 oiling fused salt tank 4 of electric heater in fused salt tank 4, and judge fused salt
Can 4 amount of stored heat of tank and temperature of molten salt drive Stirling generating set, if it is not, thening follow the steps S2；If can, the second pump for liquid salts is beaten
It opens, high-temperature molten salt enters the hot end 5 of Stirling generating set 7, so that hot end 5 and cold end 8 is formed the temperature difference, is Stirling generating set
7 provide power, and Stirling generating set 7 generates electricity.Fused salt tank 4 is returned to through pipeline in the fluid fused salt after cooling of hot end 5, thus shape
At recycling.Lead to cold water in the heat-exchanger rig of the cold end 8, cold water absorbs the after-heat of cold end 8 after heat-exchanger rig
And heat up, to flow out hot water for heat supply or domestic hot-water.
Such as Fig. 3, the photo-thermal fused salt accumulation of heat Stirling electricity-generating method the following steps are included:
S1: fused salt in fused salt tank is made to liquefy using electric heating；
S2: illumination is judged whether there is? have, thens follow the steps S3；Nothing thens follow the steps S4；
S3: starting photoelectricity fused salt regenerative apparatus is generated electricity by the Stirling generating set of fused salt driving；
Can S4: do you judge that amount of stored heat and temperature of molten salt drive Stirling generating set in fused salt tank? it is to then follow the steps
S5；It is no, then follow the steps S2；
S5: starting is generated electricity by the Stirling generating set that fused salt drives.
When the above Stirling electricity generation system generates electricity, the cold end waste heat of the Stirling generating set produces hot water, for supplying
Heat or domestic hot-water.
Specific step is as follows by the step S3:
S31: starting photo-thermal fused salt regenerative apparatus；
S32: solar energy heat collector heats fused salt heating；
S33: the fused salt after will heat up is sent to external Stirling generating set hot end, corresponding Stirling generating set hair
Electricity.
Embodiment two
The present embodiment is identical as one principle of embodiment, and the main distinction is: the photo-thermal fused salt accumulation of heat Stirling power generation
System is coupled with combustion gas, forms the Stirling electricity generation system of photo-thermal fused salt accumulation of heat coupling combustion gas.
Such as Fig. 4-Fig. 6, the electricity generation system includes burner 6.The Stirling generating set 7 can be such as one benefit of embodiment
Use high-temperature molten salt as the heat source in its hot end 5.7 hot end 5 of Stirling generating set is equipped with fused salt heating surface, and the fused salt adds
Hot face side is equipped with burner 6, and the burner 6 is gas heat source device, and the burner 6 can heat molten in hot end 5
Salt；Gas heat source device in the i.e. described burner 6 generates heat and is delivered to and the Stirling generating set 7 positioned at side
Hot end 5 makes hot end 5 and cold end 8 form the temperature difference so that hot end 5 be made to heat up, and provides power, Stirling for Stirling generating set 7
Power generator 7 generates electricity.Lead to cold water in the heat-exchanger rig of the cold end 8, cold water absorbs the delayed heat of cold end 8 after heat-exchanger rig
It measures and heats up, to flow out hot water for heat supply or domestic hot-water.
The hot end of the Stirling generating set of the external non-integration can also be used fuel gas buring and provide heat, combustion used
Gas can be any one in the fuel gas such as natural gas, biogas, biogas, coke-stove gas, hydrogen.
Such as Fig. 7, the Stirling electricity-generating method of the photo-thermal fused salt accumulation of heat coupling combustion gas the following steps are included:
S1: fused salt in fused salt tank is made to liquefy using electric heating；
S2: illumination is judged whether there is? have, thens follow the steps S3；Nothing thens follow the steps S4；
S3: starting photo-thermal fused salt regenerative apparatus is generated electricity by the Stirling generating set of fused salt driving；
Can S4: do you judge that amount of stored heat and temperature of molten salt drive Stirling generating set in fused salt tank? it is to then follow the steps
S5；It is no, then follow the steps S6；
S5: the Stirling generating set power generation of starting fused salt driving；
S6: starting burner heats hot end, the fused salt in hot end is made to heat up, and high-temperature molten salt drives Stirling generating set
Power generation.
Specific step is as follows by the step S3:
S31: starting photo-thermal fused salt regenerative apparatus；
S32: solar energy heat collector heats fused salt heating；
S33: the fused salt after will heat up is sent to external Stirling generating set hot end, corresponding Stirling generating set hair
Electricity；
When the above Stirling electricity generation system generates electricity, the cold end waste heat of the Stirling generating set produces hot water, for supplying
Heat or domestic hot-water.
Embodiment three
The present embodiment is identical as one principle of embodiment, and the main distinction is: the electricity generation system includes fused salt heat exchanging device
9, such as Figure 10, the fused salt heat exchanging device 9 is connected with fused salt tank 4, and the fused salt in the fused salt tank 4 can pass through fused salt heat exchanging device 9
Water is changed into steam, and steam is delivered to small steam turbine, warm-air drier, gland seal system or therrmodynamic system, to provide steam heating；?
Industrial steam can externally be supplied.In addition, the fused salt in the fused salt tank 4 can convert the water to hot water by fused salt heat exchanging device 9
External heat supply.
Such as Fig. 8-Fig. 9, the work step of the electricity generation system is as in the first embodiment, it is needing steam to supply at once, to make to melt
Salt passes through fused salt heat exchanging device 9.
Example IV
The present embodiment is identical as one principle of embodiment, and the main distinction is: the Stirling electricity generation system and thermal motor
Group electricity generation system is simultaneously set, and the peak regulation steam extraction of fired power generating unit at this time carries out accumulation of heat using the fused salt in fused salt heat exchanging device 9 and fused salt tank 4
Peak regulation；Such as Figure 13, the electricity generation system includes fused salt heat exchanging device 9, and the fused salt heat exchanging device 9 is connected with fused salt tank 4, described molten
Fused salt in salt cellar 4 passes through fused salt heat exchanging device 9；The fired power generating unit increases the steam extraction of steam turbine system to reduce electricity volume
Amount is to reduce unit generation amount, this increased some vapor is by fused salt heat exchanging device 9, by the heat transfer of steam to fused salt
Fused salt in heat exchanger 9 realizes accumulation of heat peak regulation to heat fused salt.Equal power grids are transitioned into the peak of power consumption period, by this way
On the one hand the heat stored by fused salt can directly be generated electricity by Stirling electricity generation system, another aspect fused salt accumulation of heat can produce enough temperature
The superheated steam of degree pressure parameter comes back to steam turbine, increases unit generation amount.
On the one hand the steam heat of fused salt savings passes through fused salt heat exchanging device and is translated into steam carries out fired power generating unit hair again
Electricity when another aspect heat is enough, can also carry out Stirling power generation by heating the hot end of Stirling generating set.It is preferred that
, the hot end by heating Stirling generating set carries out Stirling power generation.
Such as Figure 11-Figure 12, the work step of the electricity generation system can be taken above as in the first embodiment, when needing peak regulation
Measure.
The utility model have it is following the utility model has the advantages that
1. realizing the photo-thermal thermal-arrest and heat accumulation of solar energy heat collector by high-temperature molten salt and fused salt tank；
2. utilizing fused salt tank accumulation of heat and the defeated heat of high-temperature molten salt pipeline, non-integral external Stirling power generation may be implemented
Device reduces the complexity and installation difficulty of dish-style photo-thermal Stirling electricity generation system；
3. driving Stirling generating set using fused salt tank accumulation of heat and high-temperature molten salt, whole day may be implemented 24 hours and full gas
The stable electric generation of the Stirling generating set of time condition exports；
It generates electricity 4. non-integral external Stirling generating set to supplement using gas heating hot end.
In the description of the present application, belonging to " installation ", " connected ", " connection ", " fixation " etc. be shall be understood in a broad sense, such as
" connection " may be a fixed connection, can also with when be detachably connected, or be integrally connected；It can be directly connected, be also possible to
It is connected by intermediary brief introduction.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description meaning of term " one embodiment " " some embodiments " " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the application
In example or example, in the present specification, identical embodiment or implementation are not necessarily referring to the schematic illustration of above-mentioned term
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
It is described interior although those skilled in the art should be understood that embodiment disclosed by inventive embodiments is as above
Hold only the utility model and the embodiment that uses, the embodiment being not intended to limit the utility model for ease of understanding.It is any
The utility model embodiment those skilled in the art, in the premise for not departing from spirit and scope disclosed by the utility model
Under, any modification and variation, but the patent protection of the utility model embodiment can be carried out in the form and details of implementation
Range, must still be subject to range defined in the attached claims.
Claims (6)
1. a kind of photo-thermal fused salt accumulation of heat Stirling electricity generation system, it is characterised in that: including photo-thermal fused salt regenerative apparatus, Stirling hair
Electric installation (7), the photo-thermal fused salt regenerative apparatus include solar energy heat collector, fused salt tank (4), are put in the fused salt tank (4)
It is equipped with fused salt；The solar energy heat collector is connect with fused salt tank (4) by the first pump for liquid salts；The Stirling generating set
It (7) include hot end (5) and cold end (8)；The hot end (5) connect with solar energy heat collector, fused salt tank (4), the fused salt tank
(4) it is connect with the hot end (5) of Stirling generating set (7) by the second pump for liquid salts.
2. photo-thermal fused salt accumulation of heat Stirling electricity generation system according to claim 1, it is characterised in that: the cold end (8) sets
There is heat-exchanger rig, the heat-exchanger rig is exchanged heat by air or water.
3. photo-thermal fused salt accumulation of heat Stirling electricity generation system according to claim 1 or 2, it is characterised in that: the power generation system
The fused salt tank (4) of system is connected with multiple solar energy heat collectors, and the fused salt tank (4) can store connected multiple
The heat-collecting capacity of solar energy heat collector.
4. photo-thermal fused salt accumulation of heat Stirling electricity generation system according to claim 1, it is characterised in that: the Stirling power generation
(5) one side position of hot end of device (7) is equipped with burner (6), and the burner (6) can heat the hot end (5), is that this is special
Woods power generator hot end (5) provides heat.
5. photo-thermal fused salt accumulation of heat Stirling electricity generation system according to claim 1 or 2, it is characterised in that: the power generation system
System includes fused salt heat exchanging device (9), and the fused salt heat exchanging device (9) is connected with fused salt tank (4), the fused salt in the fused salt tank (4)
Steam or the external heat supply of hot water can be converted the water to by fused salt heat exchanging device (9).
6. photo-thermal fused salt accumulation of heat Stirling electricity generation system according to claim 1 or 2, it is characterised in that: the power generation system
System includes fused salt heat exchanging device (9), and the fused salt heat exchanging device (9) is connected with fused salt tank (4)；The Stirling electricity generation system and fire
Motor group electricity generation system is simultaneously set, and some vapor that the fired power generating unit generates is pumped to fused salt heat exchanging device (9), and by its heat
Pass to the fused salt in fused salt heat exchanging device (9).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792566A (en) * | 2018-08-01 | 2020-02-14 | 赫普科技发展（北京）有限公司 | Photo-thermal molten salt heat storage Stirling power generation system and method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792566A (en) * | 2018-08-01 | 2020-02-14 | 赫普科技发展（北京）有限公司 | Photo-thermal molten salt heat storage Stirling power generation system and method |
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