CN107013427A - A kind of slot type solar-thermal generating system with self-circulation system - Google Patents
A kind of slot type solar-thermal generating system with self-circulation system Download PDFInfo
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- CN107013427A CN107013427A CN201710269325.3A CN201710269325A CN107013427A CN 107013427 A CN107013427 A CN 107013427A CN 201710269325 A CN201710269325 A CN 201710269325A CN 107013427 A CN107013427 A CN 107013427A
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- salt
- self
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- tank
- cellar
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Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Abstract
A kind of slot type solar-thermal generating system with self-circulation system of present invention design.The present invention is made up of cold salt cellar, hot salt cellar, fused salt electric heater, pump for liquid salts, Jing Chang, fused salt steam generator, steam turbine, condenser.In the present invention, self-loopa tank is added in conventional groove solar-thermal generating system, for storing night anti-condensation fused salt, the heat for reducing night dissipates, reduce infringement of the low-temperature molten salt to cold salt cellar, the raising of the electricity conversion of whole solar-thermal generating system is realized, with good engineering application value.
Description
Technical field
The present invention relates to photo-thermal power generation technical field, especially a kind of slot type photo-thermal power generation system with self-circulation system
System.
Background technology
With the rapid development of economy, the mankind constantly increase to the demand of the energy, and traditional fossil energy not only quantity
It is limited, and substantial amounts of pollutant emission can be produced in use, the mankind are badly in need of finding new cleaning fuel solution demand.
And solar energy has it is inexhaustible the characteristics of, widely used by the mankind.
In solar energy heating utilization field, it is now common that slot type, tower, butterfly, Fresnel light and heat collection system.
In slot type fused salt and Fresnel fused salt collecting system, because the fusing point of fused salt is high, to prevent fused salt from solidifying, in non-thermal-arrest
Section, fused salt is also required to the circulated at low velocity flowing in collection heat mirror.But current anti-condensation system is general directly defeated by cryogenic tank fused salt
Deliver to and cryogenic tank is flowed back to after Jing Chang, circulation, this operational mode not only influences the temperature field in cryogenic tank, influence steam generation system
The heat transfer process of system, and because cryogenic tank temperature is higher, radiation loss is big, reduces the electricity conversion in whole power station.
The content of the invention
For above-mentioned problem, it is an object of the invention to provide a kind of slot type photo-thermal power generation with self-circulation system
System.
The technical scheme is that：A kind of slot type solar-thermal generating system with self-circulation system, including thermal-arrest stage
With the anti-condensation stage；
The thermal-arrest stage includes cold salt cellar 1, low-temperature molten salt pump A2, mirror field 3, hot salt cellar 4, high-temperature melting salt pump 5, fused salt steaming
Vapour generator 6, water tank 9, water pump A10, steam turbine 11, generator 12, condenser 13 and water pump B14, the cold salt cellar 1 is by low
Temperature molten salt pump A2 and mirror 3 be connected, and the mirror 3 is connected with hot salt cellar 4, the hot salt cellar 4 by the high-temperature melting salt pump 5 and
Fused salt steam generator 6 is connected, and the fused salt steam generator 6 is connected with the cold salt cellar 1, and the water tank 9 passes through water pump A10
It is connected with fused salt steam generator 6, the fused salt steam generator 6 is connected with steam turbine 11, the generator 12 and steam turbine
11 connections are generated electricity, and the steam turbine 11 is connected with condenser 13, and the condenser 13 passes through the water pump B14 and the water
Case 9 is connected.
The anti-condensation stage includes mirror 3, pump for liquid salts 7, molten salt heater 8, pump for liquid salts 15 and self-loopa tank 16, it is described from
Circulating tank 16 is connected by pump for liquid salts 7 with mirror 3, and the self-loopa tank 16 is connected with molten salt heater 8.
Further, connected between each equipment in the system using pipeline.
Further, the self-loopa tank 16 is made of steel, peripheral hardware insulation material, the size of the self-loopa tank 16
It is related to anti-condensation phase fused salt flow velocity；The self-loopa tank 16 is connected by pump for liquid salts B15 with molten salt heater 8, in temperature of molten salt
Drop to temperature it is offline when, using pump for liquid salts B15 by fused salt be delivered in molten salt heater 8 give fused salt heat up, prevent fused salt coagulate
Gu.
Further, in the anti-condensation stage temperature of molten salt of outflow is in the first of low melting point salt in the self-loopa tank 16
Between fisheye and 290 DEG C, the temperature of molten salt of backflow is on the first fisheye of low melting point salt.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is added in original slot type electricity generation system
Self-loopa tank, the anti-condensation period using in circulating tank fused salt carry out circulated at low velocity, after be back in circulating tank, due in circulating tank melt
Salt temperature (being any numerical value between the liquidus temperature of low melting point salt and 290 DEG C)) it is lower than temperature in cold tank (290 DEG C), therefore
Radiation loss is smaller, improves the electricity conversion of primal system.
Brief description of the drawings
Fig. 1 is system schematic of the invention.
In figure：The cold salt cellars of 1-, 2- low-temperature molten salt pumps, the hot salt cellars of 3- Jing Chang, 4-, 5- high-temperature melting salt pumps, 6- fused salts steam hair
Raw device, 7- pump for liquid salts A, 8- molten salt heater, 9- water tanks, 10- water pumps A, 11- steam turbine, 12- generators, 13- condensers, 14-
Water pump B, 15- pump for liquid salts B, 16- self-loopa tank.
Embodiment
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention is further illustrated with reference to the accompanying drawings and examples.
The thermal-arrest stage：Low-temperature molten salt is stored in cold salt cellar 1, and fused salt is delivered into mirror 3 by low-temperature molten salt pump 2, melted
Salt flows into storage in hot salt cellar 4 after being heated by the sun.Under the work of high-temperature melting salt pump 5, high-temperature molten salt is delivered to fused salt and steamed
In vapour generator 6, temperature of molten salt declines, and is back in cold salt cellar 1.Cold water in water tank 9 enters molten in the presence of water pump A10
Enter steam turbine 11 after salt steam generator 6, steam needed for being vaporized into, pushing generator 12 is generated electricity, the steaming after generating
Vapour is condensed into water into condenser 13, and water tank is entered under water pump B14 conveying.
The anti-condensation stage：Low-temperature molten salt in self-loopa tank 16 flows into circulated at low velocity in mirror 3 in the presence of pump for liquid salts A7,
Flowed back to after temperature drop in self-loopa tank.In the presence of pump for liquid salts B15, the part fused salt in self-loopa tank 16 is pumped to molten
Heated in salt heater 8, after be back in self-loopa tank 16 to prevent that temperature is too low in tank.
Generate electricity the period, consistent with traditional slot type solar-thermal generating system, system has two circulations, in collection thermal cycle, fused salt
It is extracted from cold salt cellar, into Ji Rejingchang, hot salt cellar is entered after being heated by the sun, the pump for liquid salts of hot tank top takes out hot salt
Go out, flow into steam generating system, reduced with temperature after water heat exchange, be back to cold salt cellar.Second circulation and tradition heat generate electricity and followed
Ring.
Low-temperature molten salt in circulating tank is evacuated to Jing Changzhong by anti-condensation period, pump for liquid salts, flow back into after circulated at low velocity and is followed
Ring tank.Fused salt can be drawn to fused salt heating furnace in tank, prevent that temperature of molten salt is too low in tank.The anti-condensation period terminates, can be by
Fused salt is heated to after 290 DEG C injecting cold salt cellar in circulating tank, increases energy storage molten salt amount.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (4)
1. a kind of slot type solar-thermal generating system with self-circulation system, including thermal-arrest stage and anti-condensation stage, it is characterised in that：
The thermal-arrest stage include cold salt cellar (1), low-temperature molten salt pump A (2), Jing Chang (3), hot salt cellar (4), high-temperature melting salt pump (5),
Fused salt steam generator (6), water tank (9), water pump A (10), steam turbine (11), generator (12), condenser (13) and water pump B
(14), the cold salt cellar (1) is connected by low-temperature molten salt pump A (2) with Jing Chang (3), and the Jing Chang (3) is connected with hot salt cellar (4),
The hot salt cellar (4) is connected by the high-temperature melting salt pump (5) with fused salt steam generator (6), the fused salt steam generator
(6) it is connected with the cold salt cellar (1), the water tank (9) is connected by water pump A (10) with fused salt steam generator (6), it is described molten
Salt steam generator (6) is connected with steam turbine (11), and the generator (12) is connected with steam turbine (11) to be generated electricity, the vapour
Turbine (11) is connected with condenser (13), and the condenser (13) is connected by the water pump B (14) with the water tank (9).
The anti-condensation stage includes Jing Chang (3), pump for liquid salts (7), molten salt heater (8), pump for liquid salts (15) and self-loopa tank (16),
The self-loopa tank (16) is connected by pump for liquid salts (7) with Jing Chang (3), and the self-loopa tank (16) connects with molten salt heater (8)
Connect.
2. a kind of slot type solar-thermal generating system with self-circulation system according to claim 1, it is characterised in that：This is
Connected between each equipment in system using pipeline.
3. a kind of slot type solar-thermal generating system with self-circulation system according to claim 1, it is characterised in that：It is described
Self-loopa tank (16) is made of steel, peripheral hardware insulation material, size and the anti-condensation phase fused salt flow velocity of the self-loopa tank (16)
It is related.
4. a kind of slot type solar-thermal generating system with self-circulation system according to claim 1, it is characterised in that：It is described
The temperature of molten salt of outflow is returned between the first fisheye of low melting point salt and 290 DEG C in the self-loopa tank (16) in the anti-condensation stage
The temperature of molten salt of stream is on the first fisheye of low melting point salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269325.3A CN107013427A (en) | 2017-04-24 | 2017-04-24 | A kind of slot type solar-thermal generating system with self-circulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269325.3A CN107013427A (en) | 2017-04-24 | 2017-04-24 | A kind of slot type solar-thermal generating system with self-circulation system |
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| Publication Number | Publication Date |
|---|---|
| CN107013427A true CN107013427A (en) | 2017-08-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269325.3A Pending CN107013427A (en) | 2017-04-24 | 2017-04-24 | A kind of slot type solar-thermal generating system with self-circulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116772633A (en) * | 2023-05-25 | 2023-09-19 | 中广核新能源(阿里)有限公司 | Trough type molten salt heat storage device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203704396U (en) * | 2013-12-30 | 2014-07-09 | 北京工业大学 | Solar thermal power generation, heat transfer and heat storage system based on double molten salt |
| CN105222368A (en) * | 2015-10-30 | 2016-01-06 | 百吉瑞（天津）新能源有限公司 | Based on the solar energy cascade heating high-temperature heat collection system of Molten Salt Heat Transfer accumulation of heat |
| CN105222205A (en) * | 2015-10-30 | 2016-01-06 | 百吉瑞（天津）新能源有限公司 | A kind of step heating system of electric power heating molten salt energy-storage |
| CN105953446A (en) * | 2016-06-14 | 2016-09-21 | 范多旺 | Low-melting-point salt linear Fresnel type solar heat collecting system |
| CN205823548U (en) * | 2016-07-22 | 2016-12-21 | 华北电力科学研究院(西安)有限公司 | A kind of wind and solar hybrid generating system |
-
2017
- 2017-04-24 CN CN201710269325.3A patent/CN107013427A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203704396U (en) * | 2013-12-30 | 2014-07-09 | 北京工业大学 | Solar thermal power generation, heat transfer and heat storage system based on double molten salt |
| CN105222368A (en) * | 2015-10-30 | 2016-01-06 | 百吉瑞（天津）新能源有限公司 | Based on the solar energy cascade heating high-temperature heat collection system of Molten Salt Heat Transfer accumulation of heat |
| CN105222205A (en) * | 2015-10-30 | 2016-01-06 | 百吉瑞（天津）新能源有限公司 | A kind of step heating system of electric power heating molten salt energy-storage |
| CN105953446A (en) * | 2016-06-14 | 2016-09-21 | 范多旺 | Low-melting-point salt linear Fresnel type solar heat collecting system |
| CN205823548U (en) * | 2016-07-22 | 2016-12-21 | 华北电力科学研究院(西安)有限公司 | A kind of wind and solar hybrid generating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116772633A (en) * | 2023-05-25 | 2023-09-19 | 中广核新能源(阿里)有限公司 | Trough type molten salt heat storage device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170804 |