CN206111443U - Trough type solar thermal power generation system system - Google Patents
Trough type solar thermal power generation system system Download PDFInfo
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- CN206111443U CN206111443U CN201620908992.2U CN201620908992U CN206111443U CN 206111443 U CN206111443 U CN 206111443U CN 201620908992 U CN201620908992 U CN 201620908992U CN 206111443 U CN206111443 U CN 206111443U
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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 relates to a solar thermal energy technical field that generates electricity specifically discloses a trough type solar thermal power generation system system, including solar collecting system, fuse salt heat -retaining system, steam generation system and steam turbine power generation system, solar collecting system respectively with fuse salt heat -retaining system and steam generation system connect, steam generation system with the steam turbine power generation headtotail, solar collecting system with heat transfer medium between fuse salt heat -retaining system and the steam generator is liquid metal, perhaps, solar collecting system, fuse salt heat -retaining system, steam generation system and steam turbine power generation system connect gradually, solar collecting system with heat transfer medium between the fuse salt heat -retaining system is liquid metal. The utility model discloses a liquid metal has very high thermal conductivity as heat transfer medium, liquid metal, has replaced traditional conduction oil or fuse salt, the effectual heat transfer difference in temperature that has reduced, effectual generating efficiency and the operating stability who has improved solar thermal power generation system.
Description
Technical field
This utility model is related to solar energy thermal-power-generating technical field, more particularly to one kind is situated between using liquid metal as heat transfer
The solar parabolic through power generation system of matter.
Background technology
Trough type solar power generation full name is " generating of groove type paraboloid light collection solar ", and its device is one kind by groove
Sunlight is reflected and is focused on thermal-collecting tube by formula parabolic reflector, heats the heat-conducting fluid in thermal-collecting tube, heat conduction stream in pipe
Water is heated into water vapour by body by heat-exchange system, drives the clean energy resource that Turbo-generator Set generates electricity to utilize device.
Traditional solar parabolic through power generation system, using conduction oil as collection thermal medium, using fuse salt as accumulation of heat
Medium, using water vapour as power generation medium.Because the operating temperature upper limit of conduction oil is 400 degree, so as to constrain slot type too
Vapor (steam) temperature and pressure parameter that positive energy heat generates electricity, it is difficult to further improve generating efficiency.
At present, in the world the exploitation of Ye You research and development institutions adopts medium of fused salt simultaneously as thermal-arrest and the slot type of heat storage medium
Solar heat power generation system, however, because the freezing point of fuse salt is very high, fuse salt is very easy to solidification, consequently, it is possible to whole
The tape loop of individual solar parabolic through power generation system carrys out catastrophic failure.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is to provide a kind of solar parabolic through power generation system, to improve solar heat power generation system
Generating efficiency and operation stability.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of solar parabolic through power generation system, including collection
Hot systems, molten salt heat storage system, steam generating system and turbine generating system, the collecting system respectively with the melting
Salt heat reservoir and steam generating system connect, and the steam generating system is connected with the turbine generating system, the collection
Heat-transfer working medium between hot systems and the molten salt heat storage system and steam raising plant is liquid metal.
Preferably, the collecting system includes groove type paraboloid illuminator, receptor and tracks of device；The fuse salt storage
Hot systems include liquid metal-fuse salt heat exchanger, high-temperature heat-storage tank and low temperature heat storage can, and the liquid metal-fuse salt is changed
Hot device outfan and input respectively with liquid metal in the collecting system, the input of the high-temperature heat-storage tank and institute
State the outfan connection of low temperature heat storage can；The steam generating system include liquid metal-water- to-water heat exchanger, the liquid metal-
Water- to-water heat exchanger is connected respectively with the outfan and input of liquid metal in the collecting system；The turbine generating system bag
Include steam turbine, vapor-water- to-water heat exchanger, water pump and air cooling tower, the vapor-water- to-water heat exchanger respectively with the steam turbine, water
Pump and air cooling tower connect, and the steam turbine is connected with the outfan of vapor in the liquid metal-water- to-water heat exchanger, the water pump
It is connected with the input of water in the liquid metal-water- to-water heat exchanger.
This utility model additionally provides a kind of solar parabolic through power generation system, including collecting system, fuse salt heat accumulation system
System, steam generating system and turbine generating system, the collecting system, molten salt heat storage system, steam generating system and vapour
Turbine electricity generation system is sequentially connected, and the heat-transfer working medium between the collecting system and the molten salt heat storage system is liquid gold
Category.
Preferably, the collecting system includes groove type paraboloid illuminator, receptor and tracks of device；The fuse salt storage
Hot systems include liquid metal-fuse salt heat exchanger, high-temperature heat-storage tank and low temperature heat storage can, and the liquid metal-fuse salt is changed
Hot device outfan and input respectively with liquid metal in the collecting system, the input of the high-temperature heat-storage tank and institute
State the outfan connection of low temperature heat storage can；The steam generating system includes fuse salt-water- to-water heat exchanger, and the fuse salt-water is changed
Hot device is connected respectively with the outfan of the high-temperature heat-storage tank and the input of low temperature heat storage can；The turbine generating system bag
Include steam turbine, vapor-water- to-water heat exchanger, water pump and air cooling tower, the vapor-water- to-water heat exchanger respectively with the steam turbine, water
Pump and air cooling tower connect, and the steam turbine be connected with the outfan of vapor in the fuse salt-water- to-water heat exchanger, the water pump and
The input connection of water in the fuse salt-water- to-water heat exchanger.
Preferably, the collecting system using North and South direction arrange, the receptor be electron tubes type receptor, it is described with
Track device adopts one-dimensional tracking.
Preferably, the liquid metal-water- to-water heat exchanger include be sequentially connected superheater, steam generator, preheater and
Reheater.
Preferably, the fuse salt-water- to-water heat exchanger includes superheater, steam generator, the preheater and again being sequentially connected
Hot device.
Preferably, the steam turbine connects electromotor, and the steam turbine is provided with control device, and the control device is used to control
Switching or hybrid working between solar energy system processed and auxiliary energy system.
Preferably, the liquid metal is gallio, indio, tinbase and bismuth-base alloy.
Preferably, the liquid metal is Na-K alloy.
(3) beneficial effect
Using liquid metal as heat-transfer working medium, liquid metal has solar parabolic through power generation system of the present utility model
Very high thermal conductivity, instead of traditional conduction oil or fuse salt, effectively reduce heat transfer temperature difference, heat exchanger is more stepped up
Gather, effectively raise the generating efficiency and operation stability of solar heat power generation system.By taking gallium-base alloy as an example, liquid metal
2300 DEG C of boils up till, will not undergo phase transition in operation temperature area, it is possible to obtain higher heat-collecting temperature, improve system heat
Generating efficiency, meanwhile, the fusing point of liquid metal can as little as less than 30 DEG C, will not solidify in work process, and system is made
Into damage.
Description of the drawings
Fig. 1 is the connection diagram of the solar parabolic through power generation system of this utility model embodiment 1；
Fig. 2 is the connection diagram of the solar parabolic through power generation system of this utility model embodiment 2.
In figure, 1：Groove type paraboloid illuminator；2：Liquid metal-fuse salt heat exchanger；3：Electromagnetic pump；4：High-temperature heat-storage
Tank；5：Low temperature heat storage can；6：Liquid metal-water- to-water heat exchanger/fuse salt-water- to-water heat exchanger；7：Steam turbine；8：Vapor-water heat exchange
Device；9：Water pump；10：Air cooling tower；11：Collecting system；12：Molten salt heat storage system；13：There is system in water vapour；14：Steam turbine
Electricity generation system.
Specific embodiment
Embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating this utility model, but can not be used for limiting scope of the present utility model.
Embodiment 1
As shown in figure 1, the solar parabolic through power generation system of the present embodiment includes：Collecting system 11, fuse salt heat accumulation system
System 12, steam generating system 13 and turbine generating system 14, collecting system 11 respectively with molten salt heat storage system 12 and steam
Generation system 13 connects, and is parallel relationship between molten salt heat storage system 12 and steam generating system 13, steam generating system 13
It is connected with turbine generating system 14, the heat transfer between collecting system 11 and molten salt heat storage system 12 and steam raising plant 13
Working medium is liquid metal.
Liquid metal can be gallio, indio, tinbase and bismuth-base alloy, or Na-K alloy.Liquid metal has
There is relatively low fusing point and higher boiling point, liquid can be kept within the scope of larger temperature, will not undergo phase transition；Liquid metal
With the thermal conductivity far above nonmetallic coolants such as air, water；Meanwhile, the good conductive capability of liquid metal, it is possible to use
Electromagnetic pump drives.Currently, common liquid metal includes three major types：Mercury metal, gallium and its alloy and Na-K alloy.Its
In, gallium and its alloy have outstanding behaviours in high heat flux device cooling field, and Na-K alloy is situated between as good heat-carrying
Matter is applied to nuclear power station field.Using fusing point it is low, boiling point is high, excellent thermal conductivity liquid metal is used as solar heat power generation system
Heat transfer medium be favorably improved solar heat power generation system efficiency and operation stability.
Collecting system 11 includes：Groove type paraboloid illuminator 1 (Ji Rejingchang), receptor and tracks of device；Collecting system
11 are arranged using North and South direction, and receptor is electron tubes type receptor, and tracks of device adopts one-dimensional tracking.The master of collecting system 11
It act as absorbing or collecting the heat of solar energy.
Molten salt heat storage system 12 includes：Liquid metal-fuse salt heat exchange 2, high-temperature heat-storage tank 4 and low temperature heat storage can 5, liquid
The input and outfan of the liquid metal part of state metal-fuse salt heat exchanger 2 respectively with liquid metal in collecting system 11
Outfan and input connection, absorb heat, and the liquid metal of liquid metal-fuse salt heat exchanger 2 from collecting system 11
Electromagnetic pump 3, liquid metal-fuse salt heat exchange are provided with partial outfan and collecting system 12 between the input of liquid metal
The outfan and input of the fuse salt part of device 2 respectively with the input and the outfan of low temperature heat storage can 5 of high-temperature heat-storage tank 4
Connection, realizes that heat is stored；This system can make molten salt heat storage system 12 and steam in no sunlight or inadequate sunlight
Vapour occurs system 13 carries out heat exchange.
Steam generating system 13 includes：Liquid metal-water- to-water heat exchanger 6, specifically can include：What is be sequentially connected is overheated
Device, steam generator, preheater and reheater, the input and outfan of the liquid metal part of liquid metal-water- to-water heat exchanger 6
It is connected with the outfan and input of liquid metal in collecting system 11 respectively；Heat-transfer working medium (liquid metals) enters steam generation
Exchanged heat with water in system 13, produced superheated steam, superheated steam is generated electricity into turbine generator subsystem 14.
Turbine generating system 14 includes：Steam turbine 7, vapor-water- to-water heat exchanger 8, water pump 9 and air cooling tower 10, vapor-
The vapor input and whose outfan of water- to-water heat exchanger 8 is connected respectively with the outfan of steam turbine 7 and the input of water pump 8, water
The outfan and input of the water section of steam-water- to-water heat exchanger 8 is connected respectively with the input and outfan of air cooling tower 10, steamer
The input of machine 7 is connected with the outfan of vapor in liquid metal-water- to-water heat exchanger 6, and the outfan of water pump 8 and liquid metal-
The input connection of water in water- to-water heat exchanger 6.Steam turbine connection electromotor constitutes turbine generating system 14, turbine generating system
14 basic compositions are similar with conventional power generation usage equipment, but need to configure a kind of dedicated control device, for solar heating system and
Switching between auxiliary energy system, or for solar heating system and supplementary energy heating system hybrid working.
The operation principle of the solar parabolic through power generation system of the present embodiment is：
When solar radiation keeps constant, from the liquid metal of collecting system 11 liquid metal-melting is partly into
Salt heat exchanger 2, with the fuse salt from low temperature heat storage can 5 heat exchange is carried out, and high-temperature fusion salt is produced, into high-temperature heat-storage tank 4
Energy storage is carried out, another part enters liquid metal-water- to-water heat exchanger 6, carry out heat exchange with water and produce overheated steam, liquid metal
Collecting system 11 is returned to after heat release.
When solar radiation is less than predeterminated level, molten salt heat storage system 12 starts to release energy, from steam generation system
The liquid metal of system 13 enters liquid metal-fuse salt heat exchanger 2 and absorbs heat, into liquid metal-water- to-water heat exchanger 6, melting
Salt, through liquid metal-release heat of fuse salt heat exchanger 2, flows into low temperature heat storage can 5 from high-temperature heat-storage tank 4.
Embodiment 2
As shown in Fig. 2 the solar parabolic through power generation system of the present embodiment is with the difference of above-described embodiment 1：Thermal-arrest
System 11, molten salt heat storage system 12, steam generating system 13 and turbine generating system 14 are sequentially connected, collecting system 11 with
Heat-transfer working medium between molten salt heat storage system 12 is liquid metal.So molten salt heat storage system 12 as intermediate system, entirely
Portion absorbs the heat from collecting system 11, and is released to steam generating system 13.
Specifically, steam generating system 13 includes：Fuse salt-water- to-water heat exchanger 6, specifically can include：It is sequentially connected
Superheater, steam generator, preheater and reheater, the input and outfan of the fuse salt part of fuse salt-water- to-water heat exchanger 6
It is connected with the outfan of high-temperature heat-storage tank 4 and the input of low temperature heat storage can 5 respectively；The input of steam turbine 7 and fuse salt-water
The outfan connection of vapor in heat exchanger 6, the outfan of water pump 8 is connected with the input of water in fuse salt-water- to-water heat exchanger 6.
The operation principle of the solar parabolic through power generation system of the present embodiment is：
Molten salt heat storage system is made 12 and is connected with collecting system 11 and steam generating system 13 respectively for intermediate system, and collects
Hot systems 11 are not connected with steam generating system 12, the solar parabolic through power generation system of this form can greatly it is compatible too
The change of sun radiation, although increased heat transfer temperature difference to a certain extent, but due to the thermal conductivity of liquid metal it is very high, thermal resistance
Less, the amplitude that heat transfer temperature difference increases is less, and other parts are identical with the solar parabolic through power generation system of embodiment 1.
Using liquid metal as heat-transfer working medium, liquid metal has solar parabolic through power generation system of the present utility model
Very high thermal conductivity, instead of traditional conduction oil or fuse salt, effectively reduce heat transfer temperature difference, heat exchanger is more stepped up
Gather, effectively raise the generating efficiency and operation stability of solar heat power generation system.By taking gallium-base alloy as an example, liquid metal
2300 DEG C of boils up till, will not undergo phase transition in operation temperature area, it is possible to obtain higher heat-collecting temperature, improve system heat
Generating efficiency, meanwhile, the fusing point of liquid metal can as little as less than 30 DEG C, will not solidify in work process, and system is made
Into damage.
Embodiment of the present utility model in order to example and description for the sake of and be given, and be not exhaustively or will
This utility model is limited to disclosed form.Many modifications and variations are for the ordinary skill in the art aobvious and easy
See.It is, in order to more preferably illustrate principle of the present utility model and practical application, and to make this area to select and describe embodiment
Those of ordinary skill is it will be appreciated that this utility model is so as to designing the various embodiments with various modifications for being suitable to special-purpose.
Claims (10)
1. a kind of solar parabolic through power generation system, it is characterised in that send out including collecting system, molten salt heat storage system, steam
Raw system and turbine generating system, the collecting system connects respectively with the molten salt heat storage system and steam generating system
Connect, the steam generating system is connected with the turbine generating system, the collecting system and the molten salt heat storage system
Heat-transfer working medium and steam raising plant between is liquid metal.
2. solar parabolic through power generation system according to claim 1, it is characterised in that the collecting system includes slot type
Parabolic reflector, receptor and tracks of device；The molten salt heat storage system includes liquid metal-fuse salt heat exchanger, height
Warm heat storage can and low temperature heat storage can, the liquid metal-fuse salt heat exchanger respectively with liquid metal in the collecting system
The outfan connection of outfan and input, the input of the high-temperature heat-storage tank and the low temperature heat storage can；The steam
Generation system includes liquid metal-water- to-water heat exchanger, and the liquid metal-water- to-water heat exchanger is golden with liquid in the collecting system respectively
The outfan of category and input connect；The turbine generating system includes steam turbine, vapor-water- to-water heat exchanger, water pump and sky
Cold tower, the vapor-water- to-water heat exchanger is connected respectively with the steam turbine, water pump and air cooling tower, the steam turbine and the liquid
The outfan connection of vapor, the input of the water pump and water in the liquid metal-water- to-water heat exchanger in state metal-water- to-water heat exchanger
End connection.
3. solar parabolic through power generation system according to claim 2, it is characterised in that the liquid metal-water heat exchange
Device includes superheater, steam generator, preheater and the reheater being sequentially connected.
4. a kind of solar parabolic through power generation system, it is characterised in that send out including collecting system, molten salt heat storage system, steam
Raw system and turbine generating system, the collecting system, molten salt heat storage system, steam generating system and steam turbine power generation system
System is sequentially connected, and the heat-transfer working medium between the collecting system and the molten salt heat storage system is liquid metal.
5. solar parabolic through power generation system according to claim 4, it is characterised in that the collecting system includes slot type
Parabolic reflector, receptor and tracks of device；The molten salt heat storage system includes liquid metal-fuse salt heat exchanger, height
Warm heat storage can and low temperature heat storage can, the liquid metal-fuse salt heat exchanger respectively with liquid metal in the collecting system
The outfan connection of outfan and input, the input of the high-temperature heat-storage tank and the low temperature heat storage can；The steam
Generation system includes fuse salt-water- to-water heat exchanger, the fuse salt-water- to-water heat exchanger respectively with the outfan of the high-temperature heat-storage tank and
The input connection of low temperature heat storage can；The turbine generating system includes steam turbine, vapor-water- to-water heat exchanger, water pump and sky
Cold tower, the vapor-water- to-water heat exchanger is connected respectively with the steam turbine, water pump and air cooling tower, and the steam turbine is molten with described
Melt the outfan connection of vapor in salt-water- to-water heat exchanger, the water pump connects with the input of water in the fuse salt-water- to-water heat exchanger
Connect.
6. the solar parabolic through power generation system according to claim 2 or 5, it is characterised in that the collecting system is adopted
North and South direction arranges that the receptor is electron tubes type receptor, and the tracks of device adopts one-dimensional tracking.
7. solar parabolic through power generation system according to claim 5, it is characterised in that the fuse salt-water- to-water heat exchanger
Including the superheater, steam generator, preheater and the reheater that are sequentially connected.
8. the solar parabolic through power generation system according to claim 2 or 5, it is characterised in that the steam turbine connection is sent out
Motor, the steam turbine is provided with control device, and the control device is used to control between solar energy system and auxiliary energy system
Switching or hybrid working.
9. the solar parabolic through power generation system according to claim 1 or 4, it is characterised in that the liquid metal is gallium
Base, indio, tinbase or bismuth-base alloy.
10. the solar parabolic through power generation system according to claim 1 or 4, it is characterised in that the liquid metal is sodium
Potassium-sodium alloy.
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| CN201620908992.2U CN206111443U (en) | 2016-08-19 | 2016-08-19 | Trough type solar thermal power generation system system |
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| CN201620908992.2U CN206111443U (en) | 2016-08-19 | 2016-08-19 | Trough type solar thermal power generation system system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933559A (en) * | 2018-06-01 | 2018-12-04 | 河南科技学院 | Automatically adjust the solar battery board mounting stand and mounting rack adjusting method of angle |
| CN109059315A (en) * | 2018-08-10 | 2018-12-21 | 昆山清芸新能源科技有限公司 | A kind of Dish solar thermal power system |
| CN109099605A (en) * | 2018-08-10 | 2018-12-28 | 昆山清芸新能源科技有限公司 | A kind of disc type solar energy photo-thermal energy gradient utilization system |
| CN109519242A (en) * | 2018-11-29 | 2019-03-26 | 郭刚 | A kind of AMTEC/ORC combined generating system |
| CN109777365A (en) * | 2019-01-29 | 2019-05-21 | 云南科威液态金属谷研发有限公司 | A kind of liquid metal composite phase-change energy storage material and its preparation method and application |
| CN109869924A (en) * | 2019-02-26 | 2019-06-11 | 中国华能集团清洁能源技术研究院有限公司 | A kind of solar thermal utilization pilot system and its working method |
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2016
- 2016-08-19 CN CN201620908992.2U patent/CN206111443U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933559A (en) * | 2018-06-01 | 2018-12-04 | 河南科技学院 | Automatically adjust the solar battery board mounting stand and mounting rack adjusting method of angle |
| CN109059315A (en) * | 2018-08-10 | 2018-12-21 | 昆山清芸新能源科技有限公司 | A kind of Dish solar thermal power system |
| CN109099605A (en) * | 2018-08-10 | 2018-12-28 | 昆山清芸新能源科技有限公司 | A kind of disc type solar energy photo-thermal energy gradient utilization system |
| CN109519242A (en) * | 2018-11-29 | 2019-03-26 | 郭刚 | A kind of AMTEC/ORC combined generating system |
| CN109777365A (en) * | 2019-01-29 | 2019-05-21 | 云南科威液态金属谷研发有限公司 | A kind of liquid metal composite phase-change energy storage material and its preparation method and application |
| CN109869924A (en) * | 2019-02-26 | 2019-06-11 | 中国华能集团清洁能源技术研究院有限公司 | A kind of solar thermal utilization pilot system and its working method |
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