CN107989759A - Solid heat accumulation electricity generation system and photo-thermal power station - Google Patents
Solid heat accumulation electricity generation system and photo-thermal power station Download PDFInfo
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- CN107989759A CN107989759A CN201711296993.1A CN201711296993A CN107989759A CN 107989759 A CN107989759 A CN 107989759A CN 201711296993 A CN201711296993 A CN 201711296993A CN 107989759 A CN107989759 A CN 107989759A
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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
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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
A kind of solid heat accumulation electricity generation system of disclosure, it includes solid heat storage device and steam turbine；Wherein, the solid heat storage device includes solid heat accumulation matrix and heat exchange pipeline, and the heat exchange pipeline is arranged in the solid heat accumulation matrix, to exchange heat with the solid heat accumulation matrix；The heat exchange pipeline takes hot entrance to connect in the outlet of the steam turbine, and the heat exchange pipeline takes hot outlet in the entrance of the steam turbine, so that the solid heat storage device forms energy storage driving circuit with the steam turbine.A kind of photo-thermal power station is also disclosed in the application.The problem of such scheme can solve current photo-thermal power station and carry out thermal energy storage using conduction oil or fused salt, and caused generating efficiency is relatively low, with high costs, disclosure risk is big, reliability is low.
Description
Technical field
This application involves technical field of solar utilization technique, more particularly to a kind of solid heat accumulation electricity generation system and photo-thermal power station.
Background technology
Photo-thermal power station is the place using solar power generation, and photo-thermal power station is usually disposed with photothermal conversion device, such as mirror
.In specific power generation process, the luminous energy of sunlight is converted to thermal energy by photothermal conversion device, and water is heated by thermal energy,
So that water becomes steam.The steam that photothermal conversion device produces is operated for driving steam turbine, finally realizes that solar energy turns
It is changed to electric energy.
Solar energy has the advantages that aboundresources, pollution-free, but the acquisition of solar energy has timeliness, therefore, photo-thermal
Power station can not be in night sustainable utilization solar power generation, and solar energy change is violent, if by photothermal conversion device (such as mirror
) produce steam be introduced directly into steam turbine, in DNI, (Direct Normal Irradiance, sunlight are direct from sun card
Be irradiated to the surface orthogonal with light path, be known as directly radiation) value change acutely in the case of be unfavorable for Turbine Safety stably
Operation.In addition, photo-thermal power station can not also be generated electricity on the daytime (such as cloudy day) of no sunlight using solar energy.It is very aobvious
So, have the shortcomings that continuation is poor using solar power generation.But the thermal energy for producing solar energy is effectively stored, and is gram
Take the effective means of disadvantages mentioned above.Photo-thermal power station can effectively be stored the thermal energy that sunlight produces, and then can realize light
Heat power generation is persistently carried out in post sunset or without the daytime of sunlight, and the steam that can provide parameter stability is sent out for steam turbine
Electric unit generation.It is to realize the emphasis persistently to generate electricity that how the thermal energy that sunlight is produced, which carries out effectively storage,.
At present, the thermal energy produced to sunlight is realized in photo-thermal power station using conduction oil or fused salt (can become liquid phase after heating)
Stored.During work, conduction oil and fused salt are liquid heat accumulation working medium, can only be heated near saturation temperature,
And these liquid heat accumulation Temperature of Working uniformities are preferable, hot melt is smaller, so when utilizing, bulk temperature declines comparatively fast, used
Storage tank is bulky.Generally use particular pump during utilization, increases the circulation in the unit interval to evade fused salt or conduction oil
The risk that viscosity increases or condenses, increase power consumption, monitoring device input, the tank body investment of storage.Solar-thermal generating system at present
Thermal energy storage is realized using conduction oil or fused salt, and equipment investment is huge, operating parameter is unstable and fused salt and conduction oil have corruption
Corrosion, long-play safety coefficient is relatively low, and in order to ensure fused salt or the relatively low viscosity of conduction oil must just have at it is higher
It is out of service during temperature, thus thermal energy cannot be discharged completely, cause inefficiency.As it can be seen that using conduction oil or fused salt to the sun
Light produce thermal energy stored, and then using these thermal energy implement power generation there are generating efficiency is relatively low, equipment investment is of high cost,
The problem of safety coefficient is low.
The content of the invention
The embodiment of the present application provides a kind of solid heat accumulation electricity generation system, with solve current photo-thermal power station using conduction oil or
The problem of fused salt carries out thermal energy storage, and caused generating efficiency is relatively low, equipment investment is of high cost, safety coefficient is low.
To solve the above-mentioned problems, the embodiment of the present application uses following technical proposals：
Solid heat accumulation electricity generation system, including solid heat storage device and steam turbine；Wherein, the solid heat storage device includes solid
Body heat accumulation matrix and heat exchange pipeline, the heat exchange pipeline are arranged in the solid heat accumulation matrix, with the solid heat accumulation base
Body exchanges heat；The heat exchange pipeline takes hot entrance connection to take heat outlet to connect in the outlet of the steam turbine, the heat exchange pipeline
Lead to the entrance in the steam turbine, so that the solid heat storage device forms energy storage driving circuit with the steam turbine.
Preferably, in above-mentioned solid heat accumulation electricity generation system, the solid heat storage device is multiple, multiple solid heat accumulations
Device forms heat storage area, and the heat storage area includes high-temperature heat-storage region, low temperature heat storage area and reheating heat storage area；Its
In：
The high-temperature heat-storage region is connected with the low temperature heat storage area, the reheating heat storage area and the high-temperature heat-storage
Region and the low temperature heat storage area are formed overall in parallel, and the reheating heat storage area takes heat outlet and high temperature storage
Thermal region takes heat outlet to be connected with the entrance of the steam turbine, and the reheating heat storage area takes hot entrance and the low temperature to store up
Thermal region takes outlet of the hot entrance with the steam turbine.
Preferably, in above-mentioned solid heat accumulation electricity generation system, the outlet of the steam turbine is connected with the first pipeline and the second pipe
Road, first pipeline is in parallel with the second pipe, and first pipeline takes hot entrance to connect with the reheating heat storage area
Logical, for the reheated steam heating generation superheated steam for producing the steam turbine, the second pipe is stored up with the low temperature
Thermal region takes hot entrance to connect, the backwater heating generation steam that the steam turbine is produced.
Preferably, in above-mentioned solid heat accumulation electricity generation system, between the high-temperature heat-storage region and the low temperature heat storage area
Connected by heat accumulation connecting pipe with steam-water separator, the steam-water separator is in parallel with the heat accumulation connecting pipe, the storage
Thermal communication pipeline is provided with heat accumulation control valve, and the steam-water separator, which is provided with, takes heat control valve (HCV).
Preferably, in above-mentioned solid heat accumulation electricity generation system, the steam-water separator includes steam-water separation main body and header tank,
The entrance of the steam-water separation main body takes hot outlet, the outlet of the steam-water separation main body with the low temperature heat storage area
Hot entrance is taken to connect with the high-temperature heat-storage region, the header tank connects with the drain port of the steam-water separation main body.
Preferably, in above-mentioned solid heat accumulation electricity generation system, the high-temperature heat-storage region includes multiple solids in parallel
Heat-storing device, multiple solid heat storage devices in the high-temperature heat-storage region are in parallel formed it is overall take hot entrance with
The steam-water separator is connected with the heat accumulation connecting pipe, multiple solid heat storage devices in the high-temperature heat-storage region
Parallel connection formed it is overall take heat outlet to be connected with the entrance of the steam turbine, described in multiple in the high-temperature heat-storage region
Solid heat storage device takes hot export to be both provided with first switch valve, multiple solid heat accumulations in the high-temperature heat-storage region
Device takes hot entrance to be both provided with second switch valve.
Preferably, in above-mentioned solid heat accumulation electricity generation system, the low temperature heat storage area includes multiple solids in parallel
Heat-storing device, multiple solid heat storage devices in the low temperature heat storage area are in parallel formed it is overall take heat outlet with
The steam-water separator is connected with the heat accumulation connecting pipe, multiple solid heat storage devices in the low temperature heat storage area
The overall outlet for taking hot entrance and the steam turbine that is formed of parallel connection, described in multiple in the high-temperature heat-storage region
Solid heat storage device takes hot export to be both provided with the 3rd switch valve, multiple solid heat accumulations in the high-temperature heat-storage region
Device takes hot entrance to be both provided with the 4th switch valve.
Preferably, in above-mentioned solid heat accumulation electricity generation system, the reheating heat storage area includes multiple solid heat accumulation dresses
Put, multiple solid heat storage devices in the reheating heat storage area are distributed in groups, the solid heat accumulation dress in each group
Parallel connection is put, solid heat storage device described in adjacent two groups is connected；Each described solid heat accumulation in the reheating heat storage area
Device takes hot export to be both provided with the 5th switch valve, each solid heat storage device in the reheating heat storage area
Hot entrance is taken to be both provided with the 6th switch valve.
Preferably, in above-mentioned solid heat accumulation electricity generation system, reheating bypass line is further included, the one of the reheating bypass line
End is connected between solid heat storage device described in adjacent in the reheating heat storage area two groups, and the other end is connected to the steamer
The entrance of machine.
Preferably, in above-mentioned solid heat accumulation electricity generation system, the solid heat accumulation matrix is concrete substrate, the heat exchanger tube
Road is the steel pipe being embedded in the solid heat accumulation matrix, and heat exchange fin is provided with the outside of the heat exchange pipeline.
Photo-thermal power station, including as above any one of them solid heat accumulation electricity generation system.
Above-mentioned at least one technical solution that the embodiment of the present application uses can reach following beneficial effect：
In solid heat accumulation electricity generation system disclosed in the embodiment of the present application, the heat accumulation temperature of solid heat storage device can be in its storage
The direction that hot entrance to heat accumulation exports gradually reduces, and the heat transfer property between each position of solid heat accumulation matrix is poor, therefore
It is able to maintain that the quality of each position institute storing heat, it is ensured that the temperature difference between each position.In such cases, steam turbine institute
The backwater of generation is taken in thermal process from solid heat storage device, and the heat accumulation outlet of solid heat storage device, which becomes, takes hot entrance, solid
The heat accumulation entrance of heat-storing device, which becomes, takes hot outlet, and during heat is taken, backwater caused by steam turbine passes through solid heat accumulation
Device takes hot entrance towards taking hot export direction to move, so that the higher and higher steam of quality is gradually formed, so that vapour
Turbine can be generated electricity using the steam of higher quality.For the storage of thermal energy is realized using conduction oil or fused salt,
Solid heat accumulation electricity generation system disclosed in the embodiment of the present application uses solid heat accumulation, and solid heat accumulation can ensure temperature in heat accumulation direction
Difference is larger, and solid heat storage device non-corrosiveness, solid heat storage device are in operation without viscosity and crystallisation problems, solid heat storage device
Can be at utmost using the thermal energy of storage, so that it is guaranteed that the steam, the auxiliary device that produce higher quality are cheap, safety coefficient
Height, can finally improve generating efficiency.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please is used to explain the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the structure diagram of solar-thermal generating system disclosed in the embodiment of the present application；
Fig. 2 is the structure diagram of the live (open) steam driving circuit detached from Fig. 1；
Fig. 3 is the structure diagram in the thermal energy storage circuit detached from Fig. 1；
Fig. 4 is the structure diagram of the energy storage driving circuit detached from Fig. 1；
Fig. 5 is the structure diagram of solid heat storage device disclosed in the embodiment of the present application；
Fig. 6 is the structure diagram of solid heat storage device disclosed in the embodiment of the present application；
Fig. 7 is the concrete structure schematic diagram of solid heat accumulation electricity generation system disclosed in the embodiment of the present application, and Fig. 7 is heat storage area
Take connection diagram during heat, heat accumulation pipeline not shown in figure.
Description of reference numerals：
100- photothermal conversion devices, 200- solid heat storage devices, 210- solid heat accumulations matrix, 220- heat exchange pipelines, 300-
Steam turbine, 400- thermal-arrests cyclic water tank, 500- water pumps；
700- high-temperature heat-storages region, 710- steam-water separators, 711- take heat control valve (HCV), 712- steam-water separations main body, 713-
Header tank, 720- heat accumulations connecting pipe, 721- heat accumulations control valve, 730- first switches valve, 740- second switches valve, 800- low temperature
Heat storage area, the 3rd switch valves of 810-, the 4th switch valves of 820-, 900- reheating heat storage area, the 5th switch valves of 910-, 920-
Six switch valves, 930- reheating bypass line, 931- reheating bypass control valve (BCV)s.
Embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall in the protection scope of this application.
Below in conjunction with attached drawing, the technical solution that each embodiment of the application provides is described in detail.
- 7 are please referred to Fig.1, the embodiment of the present application discloses a kind of solid heat accumulation electricity generation system, the power generation of disclosed solid heat accumulation
System includes solid heat storage device 200 and steam turbine 300.
Solid heat storage device 200 includes solid heat accumulation matrix 210 and heat exchange pipeline 220, and heat exchange pipeline 220 is arranged on solid
In heat accumulation matrix 210, to exchange heat with solid heat accumulation matrix 210.Heat exchange pipeline 220 takes hot entrance to connect in steam turbine 300
Outlet, heat exchange pipeline 220 takes hot outlet in the entrance of steam turbine 300, so that solid heat storage device 200 and steam turbine
300 form energy storage driving circuit, as shown in Figure 4.
In the application, the heat outlet that takes of heat exchange pipeline 220 is that heat accumulation of the solid heat storage device 200 during heat accumulation enters
Mouthful, the hot entrance that takes of heat exchange pipeline 220 is heat accumulation outlet of the solid heat storage device 200 during heat accumulation.In actual work
During work, the luminous energy of sunlight is converted into thermal energy by photothermal conversion device 100, and photothermal conversion device 100 is usually Jing Chang.Tool
Body, photothermal conversion device 100 produces the steam of high temperature, and the steam of high temperature enters from the heat accumulation entrance of solid heat storage device 200
Into solid heat storage device 200, realized by the heat exchange between heat exchange pipeline 220 and solid heat accumulation matrix 210 by thermal energy storage
Into solid heat accumulation matrix 210, the steam after heat exchange is condensed into water and comes back to again in photothermal conversion device 100 to be become again
Into the steam of high temperature, for the thermal energy storage of subsequent cycle, thermal energy storage circuit is as shown in Figure 3.
Certainly, the steam that photothermal conversion device 100 produces can also be used directly to driving steam turbine 300, and steam is in steamer
The condensed water formed after doing work in machine 300 is back in photothermal conversion device 100 again, is directly driven with carrying out the steam of subsequent cycle
Dynamic, it is as shown in Figure 2 that steam directly drives circuit.
Due to solid heat storage device 200 during heat is taken, it is necessary to longer heat exchange, a Bulking Time, so phase
The reaction time answered is slower, and turbine LP rotors operation the reaction time is very fast, therefore dispatching of power netwoks is to new energy project
There is certain treatment policy, therefore, preferably follow heat accumulation to carry out using steam turbine during actual motion in scheduling aspect
Power generation.
One section of specific operational process is as follows：Just put into operation the stage in solid heat accumulation module 200, steam turbine 300 can use
Rated load, fixed pressure operation；And with the decline of 200 temperature of solid heat accumulation module, hot water taking pressure is turned down, steam pressure and
Temperature declines, and ensures the degree of superheat of steam, and steam turbine 300 is switched to sliding pressure operation at this time, and solid heat accumulation module 200 provides
Steam be not enough to maintain 300 underload of steam turbine when, then selection start other modules；Heat first is taken with low pressure in start-up course,
Ensure that low parameter steam goes out that steam parameter is slightly higher, and especially vapor (steam) temperature cannot have with also in the solid heat accumulation module 200 used
Excessive lifting, with outlet vapor flow and pressure increase, is gradually closed down i.e. by the solid heat accumulation module 200 of exhaust heat,
Progressively hot water taking pressure is improved again, rise steam parameter improves the generation load of steam turbine 300.
In the stage of firm sunrise on daytime, DNI values are relatively low, and solid heat accumulation module 200 runs a night, at this time if normal operation
There should be a solid heat accumulation module 200 to be in heat fill-status, two other solid heat accumulation module 200 is empty state
(i.e. thermal energy is used up), one is currently running, and maintains the moderate duty of steam turbine 300, sliding pressure operation, in the solid heat accumulation module
300 can measure sky after, start another solid heat accumulation module 200, such as other solid heat accumulation modules 200 will store up at this time
It is full, then load is raised rapidly, in the case where that will take the empty solid heat accumulation module 200, while starts two solid heat accumulation moulds
Block 200 takes heat at the same time, about 9 points or so at this time, keeps steam turbine 300 to keep oepration at full load；This process is maintained to DNI in afternoon
14 points or so when value is begun to decline, at this time in the case where two solid heat accumulation modules 200 will take sky, restart a module
Heat is taken, ensures 300 oepration at full load of module situation tubine；In (DNI values will be to 0) the last period before the sun sets
Between about 16 points or so, no matter 200 heat of solid heat accumulation module used at this time is remaining how many to start another solid at once
Heat accumulation module 200 takes heat, and the solid heat accumulation module 200 for taking heat to just stopping carries out heat accumulation；Ensure a solid heat accumulation mould at this time
Block 200 takes heat, and the storage of the other three solid heat accumulation module 200 is full at nightfall.
After DNI values are 0, after solid heat accumulation module 200 used at this moment will take sky, the time comes into 20 substantially
Point or so, starts two other solid heat accumulation module 200 at the same time at this time, keeps opposite moderate duty even running to i.e. by bright day
When, a solid heat accumulation module 200 is exited from Warm status is taken, and is turned to be run by single solid heat accumulation module 200, is ensured at day
There is a storage of solid heat accumulation module 200 completely.
, can be with when the sunshine-duration is long, DNI values are higher and there are certain seasonality in DNI values and sunshine-duration
The increase of appropriateness takes heat, so as to increase generation load；And it is short in the sunshine-duration, in the case that DNI values are relatively low, appropriate it can subtract
It is small to take heat, extend heat accumulation island usage time, ensure 300 metastable load of steam turbine, so as to avoid frequently opening, stop
Machine.
And in the case of run into rainy weather, as the time is shorter, such as half a day or several hours, then simply reduction take it is hot
Amount, reduces generation load and ensures 300 safe and stable operation of steam turbine, until rainy days takes hot power generation according to normal condition later；
Such as continuous one day to two days a period of time, the prolonged method of operation of underload is considered at this time, reduce steam turbine 300 into vapour
Amount, 300 sliding parameter of steam turbine operation, and at this time can two 200 parallel runnings of solid heat accumulation module, keep one it is relatively steady
Fixed load；And when running into extreme rainy weather, can be by the quantity of 200 parallel running of solid heat accumulation module more than more than 3 days
Increase to 3 even to 4, using big flow, low parameter, ensures to maintain steam turbine 300 as far as possible in the case of steam superheat
Run for a long time under moderate load situations；When the outlet vapor of solid heat accumulation module 200 generates electricity only by steam turbine 300
In the case of enough station services, maintenance down is selected at this time.
As shown in figure 4, the solid heat storage device 200 of storage thermal energy forms energy storage driving circuit with steam turbine 300, with driving
Steam turbine 300 is run, so as to fulfill the lasting power generation at when not having sunlight (such as night or cloudy day).Specifically, solid stores up
Thermal 200 takes heat outlet to be connected with the entrance of steam turbine 300, and solid heat storage device 200 takes hot entrance and steam turbine 300
Outlet.The operation power generation of steam turbine 300 needs to take heat from solid heat storage device 200, takes in thermal process, solid heat accumulation dress
The heat accumulation entrance for putting 200 is to take hot outlet, and the heat accumulation outlet of solid heat storage device 200 is to take hot entrance.Steam turbine 300 produces
Raw backwater can take hot entrance to enter in solid heat storage device 200 by solid heat storage device 200, and backwater passes through heat exchanger tube
Road 220 becomes superheated steam with the heat exchange of solid heat accumulation matrix 210, finally takes heat outlet to enter from solid heat storage device 200
With 300 generator operation of driving steam turbine in steam turbine 300.High-temperature steam can become backwater again in steam turbine 300 after acting,
Backwater is exchanged heat so that next driving cycle works by taking hot entrance to be re-introduced into solid heat storage device 200.
Solar-thermal generating system disclosed in the embodiment of the present application this can include being arranged on photo-thermal heat collector and solid heat accumulation and fill
Thermal-arrest cyclic water tank 400 between putting, the another port of heat exchange pipeline are connected to the outlet of steam turbine 300 and thermal-arrest cyclic water tank
On pipeline between 400 entrances.
In order to improve backwater reflux efficiency, in the circuit shown in Fig. 1, water pump 500, water can be set on thermal energy storage circuit
Backwater is back in photothermal conversion device 100 as early as possible during the driving thermal energy storage of pump 500.It can also be set in energy storage driving circuit
Water pump is put, water pump can realize the driving to backwater caused by steam turbine 300 so that backwater caused by steam turbine 300 is use up
Flow into soon in solid heat storage device 200.
More thermal energy can be absorbed in order to improve the backwater of the outflow out of steam turbine 300, it is preferred that steam turbine 300
Outlet is provided with cooling tower, and cooling tower enables to backwater to become supercooling backwater.
In the embodiment of the present application, what the heat accumulation temperature of solid heat storage device 200 can be exported in its heat accumulation entrance to heat accumulation
Direction gradually reduces, and the heat transfer property between 210 each position of solid heat accumulation matrix is poor, therefore is able to maintain that each position
The quality of institute's storing heat, it is ensured that the temperature difference between each position.In such cases, backwater caused by steam turbine 300 from
Solid heat storage device 200 is taken in thermal process, and the heat accumulation outlet of solid heat storage device 200, which becomes, takes hot entrance, solid heat accumulation dress
The heat accumulation entrance put, which becomes, takes hot outlet, and during heat is taken, backwater caused by steam turbine 300 passes through solid heat storage device
200 take hot entrance towards taking hot export direction (i.e. heat accumulation outlet higher and higher towards heat accumulation Way in, direction temperature)
It is mobile, so that the higher and higher superheated steam of quality is gradually formed, so that steam turbine 300 can utilize the mistake of higher quality
Hot steam generates electricity.It is solid disclosed in the embodiment of the present application for the storage of thermal energy is realized using conduction oil or fused salt
Body heat accumulation electricity generation system uses solid heat accumulation, and solid heat accumulation can ensure that temperature difference is larger in heat accumulation direction, solid heat storage device
Non-corrosiveness, solid heat storage device can at utmost utilize storage without viscosity and crystallisation problems, solid heat storage device in operation
Thermal energy, so that it is guaranteed that produce higher quality superheated steam, auxiliary device be cheap, safety coefficient is high, can finally improve
Generating efficiency.
It is immobilising that solid heat accumulation electricity generation system disclosed in the embodiment of the present application can make full use of solid heat-storage medium to fix
Characteristic, and then it is able to ensure that solid heat-storage medium can keep larger temperature difference in its heat accumulation entrance to heat accumulation export direction,
So that hot backwater is taken to become the superheated steam of higher quality in thermal process is taken, using the superheated steam of higher quality
The generating efficiency of thermal energy can be improved.
In addition, implementing heat accumulation using fused salt or conduction oil at present, there are problems.Coking, hot tearing easily occur for conduction oil
Reaction, oxidation reaction etc. are solved, and then the heat conduction efficiency of conduction oil can be reduced, conduction oil is easy to cause pipeline blockage, local mistake
Thermal deformation is burst.Conduction oil is also easy to cause serious pollution problem once revealing.The solidification point of fused salt is excessive, about 207 DEG C, because
This, maintains the energy consumption that fused salt is in liquid phase excessive.Moreover, the corrosion of fused salt is to using heat accumulation of the fused salt as heat accumulation working medium
System it is more demanding, it is obvious that this can make it that the cost of heat reservoir is higher.Photo-thermal power generation system disclosed in the embodiment of the present application
System using solid heat storage device 200 there is no above-mentioned fused salt or conduction oil as heat accumulation working medium there are the problem of.
Solid heat accumulation electricity generation system disclosed in the embodiment of the present application can be reduced and set due to that need not use pump for liquid salts
Standby input, can avoid pump for liquid salts power consumption, and then reduce the electricity consumption in photo-thermal power station, can improve generation, create more economic effects
Benefit.Fused salt and conduction oil purchase cost are higher, meanwhile, the storage tank for storing fused salt or conduction oil is pressure vessel, bulky,
Quantity is more, and manufacture is difficult, involves great expense, and storage tank operation needs the supplementary energies such as electric tracing, higher there are maintenance cost, safety
The problem of property is poor, and the embodiment of the present application uses solid heat storage device 200 of low cost, maintenance cost is relatively low, without electricity
Heat tracing, security performance are higher.Meanwhile the problems such as fused salt crystallization and heat conduction oil viscosity reduce need not be considered using solid-state heat accumulation.
Solid heat accumulation matrix 210 disclosed in the embodiment of the present application can be concrete substrate, and heat exchange pipeline 220 can be pre-
The steel pipe being embedded in solid heat accumulation matrix 210.Heat exchange pipeline 220 can be embedded in concrete substrate.Preferably, heat exchange pipeline
220 outside is laid with heat exchange fin, and heat exchange fin can improve changing between heat exchange pipeline 220 and solid heat accumulation matrix 210
The thermal efficiency.
In a kind of specific embodiment, each solid heat storage device 200 can include Multi-layer exchanging heat pipe group, and each layer changes
Heat pipe heat includes more heat exchange pipelines 220 side by side.Specifically, heat exchange pipeline group is 9 layers, each layer of heat exchange pipeline group includes 18
Root heat exchange pipeline 220.Specifically, the length of solid heat storage device 200 can be 27.5m, width 6m, a height of 1.5m.Changed at every layer
In heat pipe heat, the both ends more with set of heat exchange tubes can set the main pipe for playing and collecting with peptizaiton, it is ensured that the quick remittance of fluid
Close and shunt, achieve the purpose that to improve heat exchange efficiency.
Solid heat accumulation electricity generation system disclosed in the embodiment of the present application can include multiple solid heat storage devices 200.It is multiple solid
Body heat-storing device 200 can be arranged in photo-thermal power station in array.It refer to Fig. 7, in a kind of preferable scheme, multiple solids storages
Thermal 200 forms heat storage area.Heat storage area includes high-temperature heat-storage region 700, low temperature heat storage area 800 and reheating heat accumulation area
Domain 900.
Wherein, high-temperature heat-storage region 700 is connected with low temperature heat storage area 800, and the temperature in high-temperature heat-storage region 700 compares low temperature
The temperature of heat storage area 800 is high.The reheated steam that reheating heat storage area 900 is used to discharge the outlet to steam turbine 300 is implemented to add
Heat so that reheated steam becomes superheated steam and reenters steam turbine 300 and do work.Reheating heat storage area 900 and high temperature
Heat storage area 700 and low temperature heat storage area 800 are formed overall in parallel, and reheating heat storage area 900 takes heat outlet and high temperature
Heat storage area 700 takes entrance of the heat outlet with steam turbine 300 to connect, and the heat outlet that takes of reheating heat storage area 900 is it
Heat accumulation entrance, the heat outlet that takes in high-temperature heat-storage region 700 is its heat accumulation entrance, and the superheated steam formed after heating is from again
Hot heat storage area 900 takes taking heat outlet to discharge and entering in steam turbine 300 for hot outlet and high-temperature heat-storage region 700.
Reheating heat storage area 900 take hot entrance and low temperature heat storage area 800 take outlet of the hot entrance with steam turbine
Connection.The backwater produced in steam turbine 300 can be gradual by low temperature heat storage area 800 and high-temperature heat-storage region 700 successively
Become the superheated steam of high-quality.In above-mentioned preferred solution, high-temperature heat-storage region 700 is really cloth with low temperature heat storage area 800
Put advanced in two heat storage areas from heat accumulation entrance to heat accumulation export direction, the high-temperature steam that photothermal conversion device 100 produces
Enter high-temperature heat-storage region 700 to exchange heat, then enter back into low temperature heat storage area 800 and exchange heat, this causes on heat accumulation direction
High-temperature heat-storage region 700 and low temperature heat storage area 800 there is temperature difference.During heat is taken, what steam turbine 300 produced returns
By low temperature heat storage area 800 and reheating heat storage area 900, (certainly, reheating heat storage area 900 can carry out backwater water successively
Heating), and gradually it is heated to form superheated steam.
Within a particular process, the outlet discharge of steam turbine 300 not only has backwater, also has reheated steam, i.e., in steamer
The steam of backwater is not condensed into machine 300 after acting, the referred to herein as some vapor is reheated steam.Reheated steam has larger
Heat, meet that steam turbine 300 works required superheated steam without heating to become too much.Based on this, the application
In embodiment, the outlet of steam turbine 300 is connected with the first pipeline and second pipe, and the first pipeline is in parallel with second pipe, and first
Pipeline takes hot entrance to connect with reheating heat storage area 900, i.e. the heat accumulation outlet with reheating heat storage area 900, for inciting somebody to action
The reheated steam heating generation superheated steam that steam turbine 300 produces.Second pipe takes hot entrance to connect with low temperature heat storage area 800
Lead to, i.e. second pipe and the heat accumulation outlet of low temperature heat storage area 800, so that backwater can pass through low temperature heat accumulation area successively
Domain 800 and high-temperature heat-storage region 700 are heated, and become the superheated steam run for driving steam turbine 300.Second pipe can be with
Connect, water in oxygen-eliminating device is heated up by extracted steam from turbine, then take heat to enter low temperature heat storage area by water pump with oxygen-eliminating device
Mouth connection, generation steam is heated by feedwater.
The heat storage area being made of multiple solid heat storage devices 200 is divided into high-temperature heat-storage region by above-mentioned preferred solution
700th, low temperature heat storage area 800 and reheating heat storage area 900, high-temperature heat-storage region 700 and low temperature heat storage area 800 can be to vapour
Backwater caused by turbine 300 is heated, and then it is become superheated steam.Reheating heat storage area 900 can be to steam turbine
Reheated steam is heated caused by 300, and then it is become superheated steam.Above-mentioned zone can be respectively to steam turbine 300
Outlet discharge different medium (backwater and reheated steam) heated so that reheated steam can recycle quickly, into
And generating efficiency can be improved.
As described above, during heat accumulation, the high-temperature steam that photothermal conversion device 100 produces can pass through high temperature successively
Heat storage area 700 and low temperature heat storage area 800, and during taking heat, backwater can pass through low temperature heat storage area 800 and height successively
Warm heat storage area 700.Based on this, in order to ensure taking the mass dryness fraction of superheated steam that thermal process formed, it is preferred that high-temperature heat-storage area
Steam-water separator 710 can be set between domain 700 and low temperature heat storage area 800, and steam-water separator 710 can remove and take thermal process
Moisture in the superheated steam formed.Certainly, as it ensure that the mass dryness fraction of superheated steam is occurred only at and taken in thermal process, then
Steam-water separator 710 need not be just opened during heat accumulation, based on this, in the embodiment of the present application, high-temperature heat-storage region 700 with
It can be realized and connected by heat accumulation connecting pipe 720 between low temperature heat storage area 800, during heat accumulation, high-temperature heat-storage area
The connection with low temperature heat storage area 800 is realized by heat accumulation connecting pipe 720 in domain 700.During heat is taken, low temperature heat accumulation area
Domain 800 is connected by steam-water separator 710 with high-temperature heat-storage region 700.
For the ease of control, heat accumulation control valve 721 is provided with heat accumulation connecting pipe 720, heat accumulation control valve 721 can be controlled
The break-make of heat accumulation connecting pipe 720 processed.Steam-water separator 710, which is provided with, takes heat control valve (HCV) 711, takes heat control valve (HCV) 711 true
Protect the break-make of the import or export of steam-water separator 710.During heat accumulation, take heat control valve (HCV) 711 to be closed, store up
Heat control valve (HCV) 721 is in opening.During heat is taken, heat control valve (HCV) 711 is taken to be in opening, heat accumulation control valve
721 are closed.
Referring again to Fig. 7, in a kind of specific embodiment, steam-water separator 710 can include steam-water separation main body
712 and header tank 713.Steam-water separation main body 712 realizes steam-water separation, entrance and the low temperature heat accumulation area of steam-water separation main body 712
Domain 800 takes hot outlet.The outlet of steam-water separation main body 712 takes hot entrance to connect with high-temperature heat-storage region 700.Catchment
Case 713 is connected with the drain port of steam-water separation main body 712, so as to collect the hydrophobic of the generation of steam-water separation main body 712.Specifically,
Header tank 713 can be connected with drainage pipeline, and drainage pipeline in time can drain hydrophobic in header tank 713.
In a kind of specific embodiment, high-temperature heat-storage region 700 includes multiple solid heat storage devices 200 in parallel,
Multiple solid heat storage devices 200 in high-temperature heat-storage region 700 are in parallel formed overall take hot entrance and steam-water separator
710 connect with heat accumulation connecting pipe 720.The parallel connection of multiple solid heat storage devices 200 in high-temperature heat-storage region 700 is formed whole
Body takes heat outlet to be connected with the entrance of steam turbine 300.Multiple solid heat storage devices 200 in high-temperature heat-storage region 700 take
Heat, which exports, is both provided with first switch valve 730, and multiple solid heat storage devices 200 in high-temperature heat-storage region 700 take hot entrance
It is both provided with second switch valve 740.First switch valve 730 and second switch valve 740 can be realized in high-temperature heat-storage region 700
Each solid heat storage device 200 in heat accumulation process or takes thermal process to be selectively opened or close, so as to fulfill high temperature
Heat storage area 700 has the combination of more solid heat storage device 200, and then can realize heat accumulation or take the flexibility of heat.
Similarly, low temperature heat storage area 800 can also include multiple solid heat storage devices 200 in parallel, low temperature heat storage area
Multiple solid heat storage devices 200 in 800 are in parallel formed overall take heat outlet to be connected with steam-water separator 710 and heat accumulation
Pipeline 720 connects.Multiple solid heat storage devices 200 in low temperature heat storage area 800 are in parallel formed overall take hot entrance
With the outlet of steam turbine 300.Multiple solid heat storage devices 200 in low temperature heat storage area 800 take heat outlet to be respectively provided with
There is the 3rd switch valve 810, multiple solid heat storage devices 200 in low temperature heat storage area 800 take hot entrance to be both provided with the 4th
Switch valve 820.3rd switch valve 810 and the 4th switch valve 820 are able to ensure that each solid heat accumulation in low temperature heat storage area 800
Device 200 is in heat accumulation process or takes thermal process to be selectively opened or close, and has so as to fulfill low temperature heat storage area 800
There is the combination of more solid heat storage device 200, and then realize heat accumulation or take the flexibility of heat.
Preferably, reheating heat storage area 900 can also include multiple solid heat storage devices 200, in reheating heat storage area 900
Multiple solid heat storage devices 200 can be distributed in groups.Solid heat storage device 200 in each group is in parallel, and adjacent two groups are consolidated
The overall series connection in parallel formed of body heat-storing device 200.Each solid heat storage device 200 in reheating heat storage area 900 takes
Heat outlet is both provided with the 5th switch valve 910.Each solid heat storage device 200 in reheating heat storage area 900 takes heat to enter
Mouth can be provided with the 6th switch valve 920.As a same reason, the 5th switch valve 910 and the 6th switch valve 920 are able to ensure that reheating
Each solid heat storage device 200 in heat storage area 900 in heat accumulation or takes thermal process to be selectively turned on and off, so that
Realize that multiple solid heat storage devices 200 in reheating heat storage area 900 have more combinations, and then realize heat accumulation or take heat
Flexibility.
In above-mentioned preferred solution, deposited in high-temperature heat-storage region 700, low temperature heat storage area 800 and reheating heat storage area 900
In solid heat storage device 200 in parallel, and each solid heat storage device 200 takes hot entrance and takes heat outlet to be respectively provided with switch
Valve, so that the solid heat storage device 200 of the embodiment of the present application has substantial amounts of combination, so that photo-thermal power station being capable of root
Realized according to the concrete condition of each solid heat storage device 200 and take heat.
Certainly, Fig. 7 is only to describe the connection diagram that heat storage area takes heat, in the application, single solid heat storage device
The entirety of 200 or multiple solid heat storage devices 200 composition, takes thermal process with heat accumulation process on the contrary, it is that heat accumulation goes out to take hot entrance
Mouthful, it is heat accumulation entrance to take heat outlet.
As shown in fig. 7, the heat accumulation entrance in high-temperature heat-storage region 700, the heat accumulation outlet of low temperature heat storage area 800 are to collect
Pipeline, some solid heat storage device 200 are in heat accumulation state, can occupy and collect pipeline, influence other 200 quilts of solid heat storage device
Take heat.Based on this, the heat accumulation entrance (taking hot outlet) of each solid heat storage device 200 in high-temperature heat-storage region 700 can be independent
Connected with photothermal conversion device 100 and steam turbine 300, the heat accumulation of each solid heat storage device 200 of low temperature heat storage area 800 goes out
Mouth (taking hot entrance) can be connected individually with photothermal conversion device 100 and steam turbine 300, this causes from high-temperature heat-storage region 700
During 800 direction heat accumulation of low temperature heat storage area, operating personnel can adjust solid heat storage device 200 and be in different works
Make state, do not influence each other between the different solid heat storage devices 200 in the same area.
For example, operating personnel choose certain some solid heat accumulation dress in high-temperature heat-storage region 700 and low temperature heat storage area 800
200 are put in Warm status is taken, other solid heat storage devices 200 in the two regions are in heat accumulation state.With work
Carry out, the state of solid heat storage device 200 can be adjusted in due course, to ensure solid heat storage device 200 that thermal energy is gradually taken away
Into heat accumulation state with storage energy again, the entrance of solid heat storage device 200 for storing thermal energy takes Warm status with again to steamer
300 supplying energy of machine.
As a same reason, above-mentioned reheating heat storage area 900 can discharge again dedicated for the outlet heated from steam turbine 300
Hot steam, each solid heat storage device 200 in reheating heat storage area 900 have multiple combinations in series connection direction in groups, operation
Personnel can make it according to the behaviour in service of each solid heat storage device 200 in heat accumulation state and take the switching between Warm status.
As shown in fig. 7, heat accumulation entrance and the heat accumulation outlet of reheating heat storage area 900 are to collect pipeline, reheating heat accumulation area
Some solid heat storage device 200 in domain 900 is in heat accumulation state, can occupy and collect pipeline, influences other solids in the region
Heat-storing device 200 is taken heat.Based on this, the heat accumulation entrance of each solid heat storage device 200 in reheating heat storage area 900
(taking hot outlet) can individually connect with photothermal conversion device 100 and steam turbine 300.Each in reheating heat storage area 900
The heat accumulation outlet (taking hot entrance) of solid heat storage device 200 can individually connect with steam turbine 300 and photothermal conversion device 100
It is logical.Above-mentioned connection mode is able to ensure that in reheating heat storage area 900 heat accumulation of each solid heat storage device 200 and takes heat, from
The influence of other 200 working statuses of solid heat storage device in the region, is more advantageous to the shape that multiple combinations take heat or heat accumulation mode
Into.
At present, using fused salt or conduction oil implement thermal energy storage there are control mode it is single the problem of, simply by fused salt
Or conduction oil steam generation region amount number control the amount of steam and quality, can not realize and generate electricity work in Various Complex
Operation under condition, especially when peak regulation is when working condition requirement, control mode is single, realizes that difficulty is higher.Moreover, photo-thermal power generation is often
Heat and steam turbine close fit are asked for, photo-thermal energy storage is on the low side to need Steam Turbine decompression, sliding pressure, could realize continuous operation.
It is very few with the fused salt or heat conduction oil mass of water heat exchange as fused salt or conduction oil are entering steam generation region, it is likely to result in melting
Salt or heat conduction oil temperature reduce excessive, generation crystallization or viscosity increase, and then cause steam turbine to be stopped transport.It will be apparent that fused salt or
For conduction oil as heat-storage medium when with steam turbine cooperating, adjustable range is smaller, is unfavorable for the continuous service in photo-thermal power station.
Above-mentioned preferred solution make it that solid heat accumulation electricity generation system is in thermal process is taken disclosed in the embodiment of the present application, Duo Gegu
Body heat-storing device 200 have it is more take hot combination, can realize the level pressure of steam turbine 300 and the seamless switching of sliding pressure and
Long-term continuous service.Meanwhile it is a variety of take hot combination farthest to realize the taking-up of heat and efficiently use, reduce
Stop of the thermal energy in solid heat storage device 200, and then can improve and take the thermal efficiency, generating efficiency is improved indirectly.It is a variety of to take hot group
Conjunction mode can realize the smooth switching of plurality of operating modes in power generation process, can adapt to the generating operation mode of Various Complex.
As described above, the reheated steam discharged from steam turbine 300 can enter steamer by reheating heat storage area 900
The entrance of machine 300, is operated with driving steam turbine 300.During heat is taken, it is likely that reheated steam needs not move through reheating whole process
The superheated steam met the requirements can be become, based on this, solid heat accumulation electricity generation system can also wrap disclosed in the embodiment of the present application
Reheating bypass line 930 is included, one end of reheating bypass line 930 is connected to two groups of solids adjacent in reheating heat storage area 900
Between heat-storing device 200, the other end is connected to the entrance of steam turbine 300.Reheating bypass line 930 is it is ensured that by reheating
The superheated steam that solid heat storage device 200 in heat storage area 900 is heated and generated need not cover taking for reheating heat storage area 900
Hot whole process can be introduced steam turbine 300 in advance.It will be apparent that reheating bypass line 930 can further improve generating efficiency.
Specifically, reheating bypass control valve (BCV) 931 can be set on reheating bypass line 930,931 energy of reheating bypass control valve (BCV)
Enough control the break-make of reheating bypass line 930.In preferable scheme, the inlet of reheating bypass line 930 can set detection
Control device, detection control device are used to detect whether reheated steam of the reheating heat storage area at this had been heated as
Hot steam, when reheated steam has been heated to form superheated steam, then detection control device can control it is corresponding again
Reheating bypass control valve (BCV) 931 on hot bypass line 931 is opened, to introduce superheated steam into steam turbine 300 in advance.Certainly,
In such cases, the switch valve (such as the 5th switch valve, the 6th switch valve) on hot line road is subsequently taken in reheating heat storage area 900
Close to prevent superheated steam from continuing to move ahead.
Based on the opto-thermal system disclosed in the embodiment of the present application, a kind of photo-thermal power station, the light is also disclosed in the embodiment of the present application
Thermo-power station includes the opto-thermal system any one of foregoing embodiments.
Herein, only emphasis describes difference with other preferred solutions, each preferred solution to each preferred solution
As long as not conflicting, it can be combined, the embodiment formed after combination also within category disclosed in this specification, is examined
Consider that text is succinct, herein with regard to no longer individually being described to combining formed embodiment.
The foregoing is merely embodiments herein, is not limited to the application.For those skilled in the art
For, the application can have various modifications and variations.All any modifications made within spirit herein and principle, be equal
Replace, improve etc., it should be included within the scope of claims hereof.
Claims (11)
1. solid heat accumulation electricity generation system, it is characterised in that including solid heat storage device and steam turbine；Wherein, the solid heat accumulation
Device includes solid heat accumulation matrix and heat exchange pipeline, and the heat exchange pipeline is arranged in the solid heat accumulation matrix, with it is described
Solid heat accumulation matrix exchanges heat；The heat exchange pipeline takes hot entrance to connect in the outlet of the steam turbine, the heat exchange pipeline
Hot outlet is taken in the entrance of the steam turbine, so that the solid heat storage device forms energy storage driving with the steam turbine
Circuit.
2. solid heat accumulation electricity generation system according to claim 1, it is characterised in that the solid heat storage device to be multiple,
Multiple solid heat storage devices form heat storage areas, the heat storage area include high-temperature heat-storage region, low temperature heat storage area and
Reheating heat storage area；Wherein：
The high-temperature heat-storage region is connected with the low temperature heat storage area, the reheating heat storage area and the high-temperature heat-storage region
The overall parallel connection formed with the low temperature heat storage area, the reheating heat storage area take heat outlet and the high-temperature heat-storage area
Domain takes heat outlet to be connected with the entrance of the steam turbine, and the reheating heat storage area takes hot entrance and the low temperature heat accumulation area
Domain takes outlet of the hot entrance with the steam turbine.
3. solid heat accumulation electricity generation system according to claim 2, it is characterised in that the outlet of the steam turbine is connected with
One pipeline and second pipe, first pipeline is in parallel with the second pipe, first pipeline and the reheating heat accumulation area
Domain takes hot entrance to connect, for the reheated steam heating generation superheated steam for producing the steam turbine, second pipe
Road takes hot entrance to connect with the low temperature heat storage area, the backwater heating generation superheated steam that the steam turbine is produced.
4. solid heat accumulation electricity generation system according to claim 2, it is characterised in that the high-temperature heat-storage region with it is described low
Connected between warm heat storage area by heat accumulation connecting pipe with steam-water separator, the steam-water separator and the heat accumulation communicating pipe
Road is in parallel, and the heat accumulation connecting pipe is provided with heat accumulation control valve, and the steam-water separator, which is provided with, takes heat control valve (HCV).
5. solid heat accumulation electricity generation system according to claim 4, it is characterised in that the steam-water separator includes carbonated drink point
From main body and header tank, the entrance of the steam-water separation main body takes hot outlet, the vapour with the low temperature heat storage area
The outlet of water separation main body takes hot entrance to connect with the high-temperature heat-storage region, the header tank and the steam-water separation main body
Drain port connection.
6. solid heat accumulation electricity generation system according to claim 4, it is characterised in that the high-temperature heat-storage region includes multiple
The solid heat storage device in parallel, multiple solid heat storage devices in the high-temperature heat-storage region are in parallel formed it is whole
Body takes hot entrance to be connected with the steam-water separator and the heat accumulation connecting pipe, multiple institutes in the high-temperature heat-storage region
State solid heat storage device it is in parallel formed it is overall take heat outlet to be connected with the entrance of the steam turbine, the high-temperature heat-storage area
The heat outlet that takes of multiple solid heat storage devices in domain is both provided with first switch valve, more in the high-temperature heat-storage region
A solid heat storage device takes hot entrance to be both provided with second switch valve.
7. solid heat accumulation electricity generation system according to claim 6, it is characterised in that the low temperature heat storage area includes multiple
The solid heat storage device in parallel, multiple solid heat storage devices in the low temperature heat storage area are in parallel formed it is whole
Body takes heat outlet to be connected with the steam-water separator and the heat accumulation connecting pipe, multiple institutes in the low temperature heat storage area
State the solid heat storage device overall outlet for taking hot entrance and the steam turbine in parallel formed, the low temperature heat accumulation area
The heat outlet that takes of multiple solid heat storage devices in domain is both provided with the 3rd switch valve, more in the low temperature heat storage area
A solid heat storage device takes hot entrance to be both provided with the 4th switch valve.
8. solid heat accumulation electricity generation system according to claim 2, it is characterised in that the reheating heat storage area includes multiple
The solid heat storage device, multiple solid heat storage devices in the reheating heat storage area are distributed in groups, in each group
The solid heat storage device is in parallel, and solid heat storage device described in adjacent two groups is connected；It is each in the reheating heat storage area
A solid heat storage device takes hot export to be both provided with the 5th switch valve, described in each in the reheating heat storage area
Solid heat storage device takes hot entrance to be both provided with the 6th switch valve.
9. solid heat accumulation electricity generation system according to claim 8, it is characterised in that reheating bypass line is further included, it is described
One end of reheating bypass line is connected between solid heat storage device described in adjacent in the reheating heat storage area two groups, another
End is connected to the entrance of the steam turbine.
10. the solid heat accumulation electricity generation system according to any one of claim 1-9, it is characterised in that the solid heat accumulation
Matrix is concrete substrate, and the heat exchange pipeline is the steel pipe being embedded in the solid heat accumulation matrix, the heat exchange pipeline
Outside is provided with heat exchange fin.
11. photo-thermal power station, it is characterised in that including the solid heat accumulation electricity generation system any one of claim 1-10.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340065A (en) * | 2018-08-03 | 2019-02-15 | 中国电力科学研究院有限公司 | A kind of photo-thermal power station participates in peak load regulation network control method and device |
| CN110749223A (en) * | 2019-10-17 | 2020-02-04 | 国网安徽省电力有限公司 | Storage and taking shared compressed air energy storage and heat storage system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006007733A1 (en) * | 2004-07-23 | 2006-01-26 | New World Generation Inc. | Electric power plant with thermal storage medium |
| CN101876488A (en) * | 2009-11-10 | 2010-11-03 | 武汉理工大学 | Method for arranging structure of heat exchange pipes of concrete heat storage system for solar thermal power generation |
| CN102661259A (en) * | 2012-05-03 | 2012-09-12 | 中国华能集团清洁能源技术研究院有限公司 | High-efficiency integrated solar thermal power generation system |
| CN102818468A (en) * | 2011-06-12 | 2012-12-12 | 北京兆阳能源技术有限公司 | Solid heat storage device |
| CN102979689A (en) * | 2011-09-07 | 2013-03-20 | 张建城 | Trough type solar middle-high temperature integrated concentrating solar power device |
| CN103591822A (en) * | 2012-08-17 | 2014-02-19 | 深圳市联讯创新工场科技开发有限公司 | Solar thermal storage system |
| CN105066477A (en) * | 2015-07-26 | 2015-11-18 | 东北石油大学 | Novel single-tank solar fused salt energy storage system |
| US20150345480A1 (en) * | 2014-05-28 | 2015-12-03 | Lawrence Livermore National Security, Llc | Thermally integrated concentrating solar power system with a fluidized solid particle receiver |
-
2017
- 2017-12-08 CN CN201711296993.1A patent/CN107989759B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006007733A1 (en) * | 2004-07-23 | 2006-01-26 | New World Generation Inc. | Electric power plant with thermal storage medium |
| CN101876488A (en) * | 2009-11-10 | 2010-11-03 | 武汉理工大学 | Method for arranging structure of heat exchange pipes of concrete heat storage system for solar thermal power generation |
| CN102818468A (en) * | 2011-06-12 | 2012-12-12 | 北京兆阳能源技术有限公司 | Solid heat storage device |
| CN102979689A (en) * | 2011-09-07 | 2013-03-20 | 张建城 | Trough type solar middle-high temperature integrated concentrating solar power device |
| CN102661259A (en) * | 2012-05-03 | 2012-09-12 | 中国华能集团清洁能源技术研究院有限公司 | High-efficiency integrated solar thermal power generation system |
| CN103591822A (en) * | 2012-08-17 | 2014-02-19 | 深圳市联讯创新工场科技开发有限公司 | Solar thermal storage system |
| US20150345480A1 (en) * | 2014-05-28 | 2015-12-03 | Lawrence Livermore National Security, Llc | Thermally integrated concentrating solar power system with a fluidized solid particle receiver |
| CN105066477A (en) * | 2015-07-26 | 2015-11-18 | 东北石油大学 | Novel single-tank solar fused salt energy storage system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340065A (en) * | 2018-08-03 | 2019-02-15 | 中国电力科学研究院有限公司 | A kind of photo-thermal power station participates in peak load regulation network control method and device |
| CN109340065B (en) * | 2018-08-03 | 2023-11-14 | 中国电力科学研究院有限公司 | Method and device for controlling photo-thermal power station to participate in power grid peak regulation |
| CN110749223A (en) * | 2019-10-17 | 2020-02-04 | 国网安徽省电力有限公司 | Storage and taking shared compressed air energy storage and heat storage system |
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