CN208204952U - The tower type solar photo-thermal steam generating system adjusted using sloppy heat salt - Google Patents
The tower type solar photo-thermal steam generating system adjusted using sloppy heat salt Download PDFInfo
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- CN208204952U CN208204952U CN201820381947.5U CN201820381947U CN208204952U CN 208204952 U CN208204952 U CN 208204952U CN 201820381947 U CN201820381947 U CN 201820381947U CN 208204952 U CN208204952 U CN 208204952U
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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 provides a kind of tower type solar photo-thermal steam generating system adjusted using sloppy heat salt, it is characterized in that, including the evaporator for water evaporation to be formed to steam water interface, for carrying out the drum that steam-water separation generates saturated vapor to steam water interface, the superheater of superheated steam, and the reheater for generating reheated steam are generated for heating saturated vapor；Wherein, superheater shell side inlet, reheater shell side inlet and evaporator shell side inlet at least access a sloppy heat salt and adjust pipeline, and sloppy heat salt adjusts pipeline and connects cold fused salt storage tank.The system adapts to load and pressure limit is big, meets the stable operation under the operating conditions such as cloudy, overcast and rainy or night of solar energy steam power plant, reduces the generation that power plant shuts down operating condition, is obviously improved the generating efficiency of power plant.
Description
Technical field
The utility model relates to a kind of tower type solar photo-thermal steam generating systems adjusted using sloppy heat salt.
Technical background
National Development and Reform Committee, Bureau of Energy have issued " production of energy and consumption revolution are strategic (2016-2030) ", and (hair changes basis
[2016] No. 2795), non-fossil energy spanning development action is proposed, accounts for whole power generations to the year two thousand thirty non-fossil energy generated energy
The specific gravity of amount is striven for reaching 50%.Current stage, ten thousand yuan/kW of the project cost of photo-thermal power generation project about 2.5-3, it is contemplated that arrive
The year two thousand twenty, project cost can be reduced to 1.5 ten thousand yuan/kW, and at that time, rate for incorporation into the power network can be reduced to 0.75 yuan/kWh or less.Cut-off
The year two thousand thirty photo-thermal power generation total installation of generating capacity ratio is up to 17% (3,000,000,000 kW of total installation of generating capacity), and total power generation is up to 9% (total power generation 10
Hundred million kWh).
Utility model content
The purpose of the utility model is to provide a kind of tower type solar photo-thermal steam generating systems adjusted using sloppy heat salt.
In order to achieve the above object, the utility model provides a kind of tower type solar photo-thermal steaming adjusted using sloppy heat salt
Vapour generating system, which is characterized in that including the evaporator for water evaporation to be formed to steam water interface, for steam water interface
The drum that steam-water separation generates saturated vapor is carried out, generates the superheater of superheated steam for heating saturated vapor, and be used for
Generate the reheater of reheated steam；Wherein, superheater shell side inlet, reheater shell side inlet and evaporator shell side inlet at least connect
Enter a sloppy heat salt and adjust pipeline, sloppy heat salt adjusts pipeline and connects cold fused salt storage tank.
Preferably, hot fused salt storage tank equipped with high-temperature molten salt connects first pipe, first pipe branch into second pipe and
Third pipeline, second pipe are connected into superheater shell side inlet, and third pipeline is connected into reheater shell side inlet, superheater shell-side outlet
Fused salt pipeline and reheater shell-side outlet fused salt pipeline are connected into the 4th pipeline and the 5th pipeline, the 4th pipeline and the 5th pipeline respectively
It is incorporated to the 6th pipeline, the 6th pipeline is connected into evaporator shell side inlet, and second pipe and third pipeline are separately connected the first sloppy heat salt
One end of adjusting pipeline and the second sloppy heat salt adjusting pipeline, one end of the 6th pipeline connection third sloppy heat salt adjusting pipeline, first
Sloppy heat salt adjusts pipeline and the second sloppy heat salt adjusts pipeline and the other end of third sloppy heat salt adjusting pipeline is all connected with sloppy heat salt
Storage tank.
It is highly preferred that it is described using sloppy heat salt adjust tower type solar photo-thermal steam generating system further include for pair
The preheater that water is preheated, evaporator shell-side outlet are connected into the 7th pipeline, and the 7th pipeline is connected into preheater shell side inlet, preheating
Device shell-side outlet is connected into one end of the 8th pipeline, and the 7th pipeline connects one end that the 4th sloppy heat salt adjusts pipeline, the 4th sloppy heat salt
The other end for adjusting pipeline and the 8th pipeline is connected into cold fused salt storage tank.
It is highly preferred that water supply is connected into the 9th pipeline by feed pump, the 9th pipeline connects the tube-side inlet of preheater, preheating
The tenth pipeline of device tube side outlet connection, the tenth pipe outlet connect drum, and drum connects evaporator tube side by the 11st pipeline,
Steam water interface is generated after evaporator heat exchange, and drum, the steaming for the saturated vapor that drum generates are connected by the 12nd pipe outlet
Vapor outlet connects the 13rd pipeline, and the 13rd pipe outlet connects superheater tube side, the 14th pipe of superheater tube side outlet connection
Road, the 14th pipeline connect steam turbine and carry out turbine power generation.
It is highly preferred that feed temperature >=250 DEG C.
It is highly preferred that the cold reheat steam (vapor) outlet end of steam turbine connects reheater tube side by the 15th pipeline, then
The 16th pipeline of hot device tube side outlet connection, the 16th pipe outlet connect steam turbine and carry out turbine power generation.
Preferably, the main component of the fused salt is 40%KNO3And 60%NaNO3Mixture, fused salt crystallization temperature
About 236 DEG C.
Preferably, the high-temperature molten salt temperature is about 565 DEG C, and low-temperature molten salt temperature is about 290 DEG C.
Preferably, the load variations range of the tower type solar photo-thermal steam generating system adjusted using sloppy heat salt
10%-110%.
Preferably, the tower type solar photo-thermal steam generating system adjusted using sloppy heat salt is suitable for steam pressure
≥5MPa。
Preferably, the varying load condition of the tower type solar photo-thermal steam generating system adjusted using sloppy heat salt is adopted
Steam generating system is adjusted with sloppy heat salt, generates the overheat and reheated steam of qualified quality.
Preferably, fused salt passes through tower type solar system acquisition heat in the hot fused salt storage tank.
Compared with prior art, the utility model has the beneficial effects that
1, the steam generating system being capable of the stable operation under large-scale varying load condition；
Even if 2, steam water lateral pressure changes, system stable operation equally also can guarantee；
3, since system design is built upon on theoretical calculation basis, often designer can there are certain richnesses to system
Surplus designs the inaccurate problem of left calculating, system itself since this system adapts to a wide range of varying load condition feature
It can wrap and perhaps digest；
4, the system adapts to load and pressure limit is big, meets solar energy steam power plant in works such as cloudy, overcast and rainy or nights
Stable operation under condition reduces the generation that power plant shuts down operating condition, is obviously improved the generating efficiency of power plant.
Detailed description of the invention
Fig. 1 is the tower type solar photo-thermal steam generating system structural schematic diagram adjusted using sloppy heat salt.
Specific embodiment
Below with reference to specific example, the utility model is further described, it should be appreciated that these embodiments are merely to illustrate this reality
With novel rather than limitation the scope of the utility model.In addition, it should also be understood that, read the utility model instruction content it
Afterwards, those skilled in the art can make various changes or modification to the utility model, and such equivalent forms equally fall within the application
The appended claims limited range.
Embodiment
As shown in Figure 1, the tower type solar photo-thermal steam generating system adjusted using sloppy heat salt of the utility model includes
Preheater d for being preheated to water, for water evaporation to be formed to the evaporator c of steam water interface, for steam-water mixing
Object carries out the drum e that steam-water separation generates saturated vapor, and the superheater a of superheated steam is generated for heating saturated vapor, and
For generating the reheater b of reheated steam；Wherein, preheater d shell side inlet, superheater a shell side inlet, reheater b shell side enter
Mouth and evaporator c shell side inlet respectively access a sloppy heat salt and adjust pipeline, and sloppy heat salt adjusts pipeline and connects cold fused salt storage tank.It is equipped with
The hot fused salt storage tank of high-temperature molten salt connects first pipe 1, and first pipe 1 branches into second pipe 2 and third pipeline 3, the second pipe
Road 2 is connected into superheater a shell side inlet, and third pipeline 3 is connected into reheater b shell side inlet, superheater a shell-side outlet fused salt pipeline and
Reheater b shell-side outlet fused salt pipeline is connected into the 4th pipeline 4 and the 5th pipeline 5 respectively, and the 4th pipeline 4 and the 5th pipeline 5 are incorporated to
6th pipeline 6, the 6th pipeline 6 are connected into evaporator c shell side inlet, and second pipe 2 and third pipeline 3 are separately connected the first sloppy heat salt
It adjusts pipeline 17 and the second sloppy heat salt adjusts one end of pipeline 18, the 6th pipeline 6 connects one that third sloppy heat salt adjusts pipeline 19
End, the first sloppy heat salt adjusts pipeline 17 and the second sloppy heat salt adjusts pipeline 18 and third sloppy heat salt adjusts the other end of pipeline 19
It is all connected with cold fused salt storage tank.Evaporator c shell-side outlet is connected into the 7th pipeline 7, and the 7th pipeline 7 is connected into preheater d shell side inlet, in advance
Hot device d shell-side outlet is connected into one end of the 8th pipeline 8, and the 7th pipeline 7 connects one end that the 4th sloppy heat salt adjusts pipeline 20, and the 4th
Sloppy heat salt adjusts pipeline 20 and the other end of the 8th pipeline 8 is connected into cold fused salt storage tank.
Water supply (temperature >=250 DEG C) is connected into the 9th pipeline 9 by feed pump, and the tube side of the 9th pipeline 9 connection preheater d enters
Mouthful, the tenth pipeline 10 of preheater d tube side outlet connection, the tenth pipeline 10 outlet connection drum e, drum e pass through the 11st pipeline
11 connection evaporator c tube sides generate steam water interface by the 12nd pipeline 12 after evaporator c heat exchange and export connection drum e,
The steam (vapor) outlet for the saturated vapor that drum e is generated connects the 13rd pipeline 13, the 13rd pipeline 13 outlet connection superheater a pipe
Journey, the 14th pipeline 14 of superheater a tube side outlet connection, the 14th pipeline 14 connect steam turbine and carry out turbine power generation.Steam
The cold reheat steam (vapor) outlet end of turbine connects reheater b tube side, reheater b tube side outlet connection the by the 15th pipeline 15
Connection steam turbine in the 16, the 16th pipeline 16 of 16 pipeline outlet carries out turbine power generation.
The main component of the fused salt is 40%KNO3And 60%NaNO3Mixture, about 236 DEG C of fused salt crystallization temperature.
Fused salt obtains heat, high-temperature molten salt (hot melt salt) by tower type solar system in the hot fused salt storage tank and cold fused salt storage tank
Temperature is about 565 DEG C, and low-temperature molten salt (sloppy heat salt) temperature is about 290 DEG C.The tower type solar adjusted using sloppy heat salt
The load variations range 10%-110% of photo-thermal steam generating system is sent out using the tower type solar photo-thermal steam that sloppy heat salt is adjusted
Raw system is suitable for steam pressure >=5MPa.
The varying load condition of the tower type solar photo-thermal steam generating system adjusted using sloppy heat salt uses sloppy heat
Salt adjusts steam generating system, generates the overheat and reheated steam of qualified quality.
The steam generating system works there are two types of operating conditions: designing operating condition at full capacity；Load down operating condition.
Design operating condition at full capacity: 565 DEG C of high-temperature molten salts from hot fused salt storage tank enter first pipe 1, in first pipe 1
Fused salt separately flows into second pipe 2 and third pipeline 3 in proportion, and second pipe 2 heats salt and enters superheater a shell side, third pipe
Road 3 heats salt and enters reheater b shell side, and after superheater a and reheater b heat exchange, superheater a shell-side outlet fused salt enters the 4th
Pipeline 4, reheater b shell-side outlet fused salt enter the 5th pipeline 5, enter the 6th after the 4th pipeline 4 and the mixing of 5 fused salt of the 5th pipeline
Pipeline 6,6 fused salt of the 6th pipeline enter evaporator c shell side, and after evaporator c heat exchange, evaporator c shell-side outlet fused salt enters the
Seven pipelines 7,7 fused salt of the 7th pipeline enter preheater d shell side, and after preheated device d heat exchange, preheater d shell-side outlet fused salt enters
8th pipeline 8, the sloppy heat salt after the heat exchange of each heat exchanger flow into cold fused salt storage tank through the 8th pipeline 8.250 from feed pump
DEG C steam generating system water supply enters the 9th pipeline 9, and the water of the 9th pipeline 9 enters the tube side of preheater d, preheated device d heat exchange
Afterwards, preheater d tube side goes out saliva into the tenth pipeline 10, and 10 water of the tenth pipeline enters drum e, and the water in drum e passes through the tenth
One pipeline 11 enters evaporator c tube side, and steam water interface is generated after evaporator c heat exchange, and evaporator c tube side exports steam-water mixing
Object enters drum e through the 12nd pipeline 12, and drum e carries out steam-water separation to steam water interface, and the saturated vapor of generation is from drum e
Steam (vapor) outlet enters pipeline 13, and saturated vapor enters superheater a tube side through the 13rd pipeline 13, generates after superheater a heat exchange
Qualified superheated steam, superheated steam enter the 14th pipeline 14,14 superheated steam of the 14th pipeline from the outlet of superheater a tube side
It is delivered to steam turbine and carries out turbine power generation.Reheater is entered by the 15th pipeline 15 from steam turbine cold reheat steam
B tube side generates qualified high temperature reheated steam after reheated device b heat exchange, high temperature reheated steam is exported from reheater b tube side to be entered
16th pipeline 16,16 high temperature reheated steam of the 16th pipeline are delivered to steam turbine and carry out turbine power generation.
Load down operating condition: since (superheater a, reheater b, evaporator c, preheater d) design work to heat exchange equipment in system
Condition is oepration at full load operating condition, in load down operation, heat exchange area will generate it is larger more than needed, especially in extreme underload
Under operating condition, such as 10% operating condition, at this time such as without adjusting accordingly, overtemperature, hot side medium will occur for each heat exchanger cold side
Surfusion will occur.In order to avoid the appearance of above-mentioned phenomenon, need to access the first sloppy heat salt adjusting pipeline 17 in second pipe 2,
The second sloppy heat salt is accessed in third pipeline 3 and adjusts pipeline 18, pipeline 19 is adjusted in the 6th pipeline 6 access third sloppy heat salt, the
Seven pipelines 7 access the 4th sloppy heat salt and adjust pipeline 20, and the first sloppy heat salt adjusts pipeline 17, the second sloppy heat salt adjusts pipeline 18, the
Three sloppy heat salt adjust the sloppy heat salt that pipeline 19 and the 4th sloppy heat salt are adjusted in pipeline 20 and are all from cold fused salt storage tank, cold temperature of molten salt
It is 290 DEG C.
Claims (5)
1. a kind of tower type solar photo-thermal steam generating system adjusted using sloppy heat salt, which is characterized in that including being used for water
Evaporation forms the evaporator (c) of steam water interface, for carrying out the drum that steam-water separation generates saturated vapor to steam water interface
(e), the superheater (a) of superheated steam, and the reheater (b) for generating reheated steam are generated for heating saturated vapor；
Wherein, superheater (a) shell side inlet, reheater (b) shell side inlet and evaporator (c) shell side inlet at least access a sloppy heat salt
Pipeline is adjusted, sloppy heat salt adjusts pipeline and connects cold fused salt storage tank.
2. the tower type solar photo-thermal steam generating system adjusted as described in claim 1 using sloppy heat salt, which is characterized in that
Hot fused salt storage tank equipped with high-temperature molten salt connects first pipe (1), and first pipe (1) branches into second pipe (2) and third pipe
Road (3), second pipe (2) are connected into superheater (a) shell side inlet, and third pipeline (3) is connected into reheater (b) shell side inlet, overheat
Device (a) shell-side outlet fused salt pipeline and reheater (b) shell-side outlet fused salt pipeline are connected into the 4th pipeline (4) and the 5th pipeline respectively
(5), the 4th pipeline (4) and the 5th pipeline (5) are incorporated to the 6th pipeline (6), and the 6th pipeline (6) is connected into evaporator (c) shell side inlet,
Second pipe (2) and third pipeline (3) are separately connected the first sloppy heat salt and adjust pipeline (17) and the second sloppy heat salt adjusting pipeline
(18) one end, the 6th pipeline (6) connect one end that third sloppy heat salt adjusts pipeline (19), and the first sloppy heat salt adjusts pipeline (17)
The other end for adjusting pipeline (18) and third sloppy heat salt adjusting pipeline (19) with the second sloppy heat salt is all connected with cold fused salt storage tank.
3. the tower type solar photo-thermal steam generating system adjusted as claimed in claim 2 using sloppy heat salt, which is characterized in that
The tower type solar photo-thermal steam generating system adjusted using sloppy heat salt further includes the preheating for being preheated to water
Device (d), evaporator (c) shell-side outlet are connected into the 7th pipeline (7), and the 7th pipeline (7) is connected into preheater (d) shell side inlet, preheating
Device (d) shell-side outlet is connected into one end of the 8th pipeline (8), and the 7th pipeline (7) connects one that the 4th sloppy heat salt adjusts pipeline (20)
End, the 4th sloppy heat salt adjusts pipeline (20) and the other end of the 8th pipeline (8) is connected into cold fused salt storage tank.
4. the tower type solar photo-thermal steam generating system adjusted as claimed in claim 3 using sloppy heat salt, which is characterized in that
Water supply is connected into the 9th pipeline (9) by feed pump, and the 9th pipeline (9) connects the tube-side inlet of preheater (d), preheater (d) pipe
The tenth pipeline (10) of journey outlet connection, the tenth pipeline (10) outlet connection drum (e), drum (e) pass through the 11st pipeline (11)
Evaporator (c) tube side is connected, steam water interface is generated after evaporator (c) heat exchange and passes through the 12nd pipeline (12) outlet connection vapour
It wraps (e), the steam (vapor) outlet for the saturated vapor that drum (e) generates connects the 13rd pipeline (13), and the outlet of the 13rd pipeline (13) connects
Superheater (a) tube side, the 14th pipeline (14) of superheater (a) tube side outlet connection are connect, the 14th pipeline (14) connects vapor wheel
Machine carries out turbine power generation.
5. the tower type solar photo-thermal steam generating system adjusted as claimed in claim 4 using sloppy heat salt, which is characterized in that
The cold reheat steam (vapor) outlet end of steam turbine connects reheater (b) tube side, reheater (b) tube side by the 15th pipeline (15)
The 16th pipeline (16) of outlet connection, the 16th pipeline (16) outlet connection steam turbine carry out turbine power generation.
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| CN201820381947.5U CN208204952U (en) | 2018-03-20 | 2018-03-20 | The tower type solar photo-thermal steam generating system adjusted using sloppy heat salt |
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| CN201820381947.5U CN208204952U (en) | 2018-03-20 | 2018-03-20 | The tower type solar photo-thermal steam generating system adjusted using sloppy heat salt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458329A (en) * | 2018-03-20 | 2018-08-28 | 上海锅炉厂有限公司 | A kind of tower type solar photo-thermal steam generating system adjusted using sloppy heat salt |
| CN109812789A (en) * | 2019-02-18 | 2019-05-28 | 上海锅炉厂有限公司 | A kind of groove type solar photo-thermal power generation steam generating system |
-
2018
- 2018-03-20 CN CN201820381947.5U patent/CN208204952U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458329A (en) * | 2018-03-20 | 2018-08-28 | 上海锅炉厂有限公司 | A kind of tower type solar photo-thermal steam generating system adjusted using sloppy heat salt |
| CN109812789A (en) * | 2019-02-18 | 2019-05-28 | 上海锅炉厂有限公司 | A kind of groove type solar photo-thermal power generation steam generating system |
| CN109812789B (en) * | 2019-02-18 | 2023-10-20 | 上海锅炉厂有限公司 | Groove type solar photo-thermal power generation steam generation system |
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