CN209197544U - Solar energy optical-thermal heat accumulation fused salt tank - Google Patents
Solar energy optical-thermal heat accumulation fused salt tank Download PDFInfo
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- CN209197544U CN209197544U CN201821381358.3U CN201821381358U CN209197544U CN 209197544 U CN209197544 U CN 209197544U CN 201821381358 U CN201821381358 U CN 201821381358U CN 209197544 U CN209197544 U CN 209197544U
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- heat
- fused salt
- exchanger
- thermal medium
- solar energy
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The utility model discloses a kind of solar energy optical-thermal heat accumulation fused salt tanks, it is characterized in that, it include: one for storing the storage tank of fused salt, for the heat storage exchanger by collection thermal medium heat transfer to fused salt, for by the water supply of fused salt heat transfer and realize water evaporation and overheat heat release heat exchanger, for distributing collection thermal medium to the collection thermal medium distribution pipe of heat storage exchanger, collection thermal medium collecting pipe for collecting the collection thermal medium in heat storage exchanger, for distributing pressure medium to the water distribution pipe of heat release heat exchanger, superheated steam collecting pipe for collecting the superheated steam in heat release heat exchanger etc..Heat accumulation and heat release function are integrated in fused salt storage tank by the utility model, while hot and cold fused salt tank reasonably being integrated, and do not distinguish hot melt salt cellar and sloppy heat salt cellar, only a seed type avoid damage of the high-temperature molten salt to ground；Meanwhile whole solar energy optical-thermal electric power station system is simplified, construction land occupation has been saved, operation cost is reduced.
Description
Technical field
The utility model relates to a kind of solar energy optical-thermal heat accumulation fused salt tanks, belong to solar energy optical-thermal heat-storage technology field.
Background technique
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
1000000000 kWh).Existing solar energy optical-thermal storage hot systems generally require setting: sloppy heat salt cellar, hot melt salt cellar, storage heat heat exchange
Device, pump for liquid salts, steam generating system, pipe-line system and steelframe etc..System operation is complicated, construction and maintenance cost are high, land occupation
Area is big, while it is very high to heat requirement of the salt cellar to ground.
Summary of the invention
Problem to be solved in the utility model is: existing solar energy optical-thermal storage hot systems are excessively complicated, build and tie up
Protect at high cost, the technical issues of taking up a large area.
To solve the above-mentioned problems, the utility model provides a kind of solar energy optical-thermal heat accumulation fused salt tank, which is characterized in that
Include: one for storing the storage tank of fused salt, at least two for by collection thermal medium heat transfer to the heat storage exchanger of fused salt,
At least two heat release heat exchangers for being used for the water supply of fused salt heat transfer and realizing water evaporation and overheat, for drawing collection thermal medium
Entering the collection thermal medium entrance in storage tank, for distributing collection thermal medium to the collection thermal medium distribution pipe of every heat storage exchanger, using
In the collection thermal medium collecting pipe for collecting the collection thermal medium in every heat storage exchanger, for collection thermal medium to be drawn to the collection of storage tank
Thermal medium outlet, for pressure medium to be introduced to the pressure medium inlet of storage tank, for distributing pressure medium to every heat release
The water distribution pipe of heat exchanger, the superheated steam collecting pipe for collecting the superheated steam in every heat release heat exchanger, being used for will
Superheated steam draws the superheated steam outlet of storage tank；Collection thermal medium entrance, collection thermal medium outlet connection collection thermal medium recycle piping
System；Pressure medium inlet connects water supply system；Superheated steam outlet connection steam turbine.
Preferably, the heat storage exchanger, heat release heat exchanger are integrated in tank inside, and the two interlaced arrangement.
Preferably, the collection thermal medium distribution pipe includes sequentially connected introduction pipeline, ring main and distribution ozzle, is drawn
Enter piping connection collection thermal medium entrance, the input end of distribution ozzle connection heat storage exchanger.
Preferably, the collection thermal medium collecting pipe includes sequentially connected extraction pipeline, ring main and collects ozzle, is drawn
Piping connection collection thermal medium exports out, collects the outlet end of ozzle connection heat storage exchanger.
Preferably, the water distribution pipe includes sequentially connected introduction pipeline, ring main and distribution ozzle, introduction pipeline
Connect pressure medium inlet, the input end of distribution ozzle connection heat release heat exchanger.
It is highly preferred that it is described collect ozzle, distribution ozzle be equipped with throttling set.
Preferably, the superheated steam collecting pipe includes sequentially connected extraction pipeline, ring main and collects ozzle, is drawn
Piping connection superheated steam exports out, collects the outlet end of ozzle connection heat release heat exchanger.
Preferably, the heat release heat exchanger is to be evenly arranged around tubular structure, includes evaporator section and mistake around tubular structure
Hot arc.
Preferably, it is equipped in the storage tank and is used to support heat storage exchanger, the support device of heat release heat exchanger and for preventing
The only convection preventing device of the cold and hot convection current of fused salt.
It is highly preferred that the support device and convection preventing device are integrated into support and convection preventing device comprising for branch
Support the girder steel, support muscle and the Turbogrid plates for preventing the cold and hot convection current of fused salt of heat storage exchanger and heat release heat exchanger.
The utility model combines the function of existing solar energy optical-thermal storage three modules of hot systems, by heat accumulation and heat release function
It can be integrated in fused salt storage tank, while hot and cold fused salt tank reasonably being integrated.The fused salt storage tank of the utility model is not distinguished
Heat salt cellar and sloppy heat salt cellar, only a seed type.In fused salt storage tank when storage fused salt, top is hot melt salt, and lower part is sloppy heat
Salt, the temperature of fused salt are continuously gradually increased from the bottom up.
Support and the effect of convection preventing structure are as follows: first, support heat storage exchanger and steam generator, avoid gravity from causing
Damage；Second, will form certain convection current fortune under natural conditions since fused salt storage tank interior temperature distribution is upper heat and lower cold
Dynamic, which can be avoided convection current, and fused salt is kept to remain static as far as possible in storage tank, keep heat in monomer fused salt tank
Under cold operating condition.
Compared with prior art, the utility model has the beneficial effects that:
1, the storage tank heat accumulation belongs to single tank heat accumulation, the type of the fused salt storage tank of reduction；
2, the setting for the upper heat and lower cold that the list tank heat accumulation uses avoids damage of the high-temperature molten salt to ground, while reducing
The heat-insulated requirement of tank bottom；
3, heat storage exchanger is integrated to tank inside by the setting of the storage tank, simplifies whole solar energy thermo-power station system
System has saved construction land occupation, has reduced operation cost；
4, steam generator is integrated to tank inside by the setting of the storage tank, simplifies whole solar energy thermo-power station system
System has saved construction land occupation, has reduced operation cost.
Detailed description of the invention
Fig. 1 is the perspective view of solar energy optical-thermal heat accumulation fused salt tank provided by the utility model.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
Embodiment
As shown in Figure 1, being a kind of solar energy optical-thermal heat accumulation fused salt tank provided by the invention comprising a storage tank 1, collection
Thermal medium entrance 2,3, three heat storage exchangers 4 of collection thermal medium distribution pipe, collection thermal medium collecting pipe 5, collection thermal medium outlet 6, pressure
Power media entrance 7,8, two heat release heat exchangers 9 of water distribution pipe, superheater steam convergence pipe 10, superheated steam outlet 11, support
And prevent convection device 12 etc..
Heat storage exchanger 4 is around tubular type, three heat storage exchangers 4 and two 9 interlaced arrangements of heat release heat exchanger.Heat storage and exchange
Distribution ozzle, ring main, introduction pipeline the connection collection thermal medium that the input end of device 4 passes sequentially through collection thermal medium distribution pipe 3 enter
Mouth 2.Collection thermal medium entrance 2 is located at 1 left upper portion of storage tank, can absorb thermal walking of the pipeline of collection thermal medium relative to storage tank 1.
What the outlet end of heat storage exchanger 4 passed sequentially through collection thermal medium collecting pipe 5 collects ozzle, ring main, fairlead
Road connects collection thermal medium outlet 6.The throttling set for collecting ozzle can realize that collection thermal medium is uniform in more heat storage exchangers 4
Distribution.Collection thermal medium outlet 6 is located at the left lower of storage tank 1, can absorb thermal potential of the collection thermal medium pipeline relative to storage tank 1
It moves.
Heat release heat exchanger 9 is similarly around tubular type, and heat release heat exchanger 9 includes evaporator section and superheat section.Heat release heat exchanger 9 into
Mouth end passes sequentially through distribution ozzle, ring main, introduction pipeline the connection pressure medium inlet 7 of water distribution pipe 8.Distribute ozzle
Throttling set can realize water evenly distributing in more heat release heat exchangers 9.Pressure medium inlet 7 is located under the right side of storage tank 1
Portion can absorb thermal walking of the supply line relative to storage tank 1.
The outlet end of heat release heat exchanger 9 passes sequentially through superheated steam collecting pipe 10 and collects ozzle, ring main, draws pipeline
Connect superheated steam outlet 11.Superheated steam outlet 11 is located at the right upper portion of storage tank 1, and it is opposite to can absorb superheated steam pipeline
In the thermal walking of storage tank 1.
It is furnished with Multi-layer supporting in storage tank 1 and puts convection device 12, for a kind of knot including girder steel, support muscle and Turbogrid plates
Structure, wherein girder steel is fixedly connected with the bottom of heat storage exchanger 4 and heat release heat exchanger 9, is played a supporting role, and grid is laid on respectively
On layer girder steel, the cold and hot convection current of fused salt can be prevented.
Under heat accumulation operating condition, the collection thermal medium from solar energy mirror field enters from the collection thermal medium entrance 2 on 1 top of storage tank
Collection thermal medium distribution pipe 3.Collection thermal medium distribution pipe 3 evenly distributes collection thermal medium to heat storage exchanger 4.Heat storage exchanger 4 will
The heat transfer of collection thermal medium is to the fused salt in storage tank 1.The collection thermal medium for completing heat exchange is collected in collection thermal medium collecting pipe 5,
From the outlet of the collection thermal medium of 1 lower part of storage tank, 6 return solar energy stilling the theatre absorbs heat again.
Under heat release operating condition, the high pressure water from water supply system is matched from the pressure medium inlet 7 of 1 lower part of storage tank into moisture
Pipe 8.Water distribution pipe 8 evenly distributes high pressure water to heat release heat exchanger 9.High pressure water is stored up in tank 1 in 9 interior suction of heat release heat exchanger
The heat of fused salt storage, completes evaporation and overheat, the superheated steam of generation is collected in superheated steam collecting pipe 10, from storage tank 1
The superheated steam outlet 11 on top enters steam turbine power generation.
During heat accumulation, collection thermal medium is upper entering and lower leaving, and the temperature of molten salt in storage tank 1 can be made to be distributed as under heat
It is cold；In exothermic process, water or steam are bottom in and top out, and temperature of molten salt in storage tank 1 can equally be kept to be distributed as upper heat and lower cold.
Set each layer convection preventing device effectively prevents the cold and hot convection current of fused salt in storage tank 1, it is ensured that 1 lower part of storage tank maintains
Lower temperature avoids the damage to storage tank ground.
Claims (10)
1. a kind of solar energy optical-thermal heat accumulation fused salt tank characterized by comprising one is used to store the storage tank (1) of fused salt, at least
Two for by collection thermal medium heat transfer, to the heat storage exchanger (4) of fused salt, at least two for give fused salt heat transfer
Water and the heat release heat exchanger (9) realizing water evaporation and overheating, for collection thermal medium to be introduced to the collection thermal medium entrance in storage tank (1)
(2), for distributing collection thermal medium to the collection thermal medium distribution pipe (3) of every heat storage exchanger (4), for changing every heat accumulation
The collection thermal medium collecting pipe (5) that collection thermal medium in hot device (4) is collected, the thermal-arrest for collection thermal medium to be drawn to storage tank (1) are situated between
Matter exports (6), for pressure medium to be introduced to the pressure medium inlet (7) of storage tank (1), for distributing pressure medium to every
The water distribution pipe (8) of heat release heat exchanger (9), the superheated steam for collecting the superheated steam in every heat release heat exchanger (9)
Collecting pipe (10), the superheated steam for superheated steam to be drawn to storage tank (1) export (11)；Collection thermal medium entrance (2), thermal-arrest are situated between
Matter exports (6) connection collection thermal medium and recycles guard system；Pressure medium inlet (7) connects water supply system；Superheated steam exports (11)
Connect steam turbine.
2. solar energy optical-thermal heat accumulation fused salt tank as described in claim 1, which is characterized in that the heat storage exchanger (4), heat release
Heat exchanger (9) is integrated in storage tank (1) inside, and the two interlaced arrangement.
3. solar energy optical-thermal heat accumulation fused salt tank as described in claim 1, which is characterized in that the collection thermal medium distribution pipe (3)
Collection thermal medium entrance (2) are connected including sequentially connected introduction pipeline, ring main and distribution ozzle, introduction pipeline, distribution pipe
Mouth connects the input end of heat storage exchanger (4).
4. solar energy optical-thermal heat accumulation fused salt tank as claimed in claim 3, which is characterized in that the collection thermal medium collecting pipe (5)
Including sequentially connected extraction pipeline, ring main and collect ozzle, draws piping connection collection thermal medium outlet (6), manifold trunk
Mouth connects the outlet end of heat storage exchanger (4).
5. solar energy optical-thermal heat accumulation fused salt tank as described in claim 1, which is characterized in that the water distribution pipe (8) include according to
Introduction pipeline, ring main and the distribution ozzle of secondary connection, introduction pipeline connection pressure medium inlet (7), distribution ozzle connection
The input end of heat release heat exchanger (9).
6. solar energy optical-thermal heat accumulation fused salt tank as claimed in claim 4, which is characterized in that described to collect ozzle, distribution ozzle
It is equipped with throttling set.
7. solar energy optical-thermal heat accumulation fused salt tank as described in claim 1, which is characterized in that the superheated steam collecting pipe (10)
Including sequentially connected extraction pipeline, ring main and collect ozzle, draws piping connection superheated steam outlet (11), manifold trunk
Mouth connects the outlet end of heat release heat exchanger (9).
8. solar energy optical-thermal heat accumulation fused salt tank as described in claim 1, which is characterized in that the heat release heat exchanger (9) is equal
Even arrangement around tubular structure, include evaporator section and superheat section around tubular structure.
9. solar energy optical-thermal heat accumulation fused salt tank as described in claim 1, which is characterized in that be equipped with and be used in the storage tank (1)
Support heat storage exchanger (4), the support device of heat release heat exchanger (9) and the convection preventing device for preventing the cold and hot convection current of fused salt.
10. solar energy optical-thermal heat accumulation fused salt tank as claimed in claim 9, which is characterized in that the support device and convection preventing
Device is integrated into support and convection preventing device (12) comprising is used to support the steel of heat storage exchanger (4) and heat release heat exchanger (9)
Beam, support muscle and the Turbogrid plates for preventing the cold and hot convection current of fused salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821381358.3U CN209197544U (en) | 2018-08-27 | 2018-08-27 | Solar energy optical-thermal heat accumulation fused salt tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821381358.3U CN209197544U (en) | 2018-08-27 | 2018-08-27 | Solar energy optical-thermal heat accumulation fused salt tank |
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| Publication Number | Publication Date |
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| CN209197544U true CN209197544U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821381358.3U Active CN209197544U (en) | 2018-08-27 | 2018-08-27 | Solar energy optical-thermal heat accumulation fused salt tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186296A (en) * | 2018-08-27 | 2019-01-11 | 上海锅炉厂有限公司 | A kind of solar energy optical-thermal heat accumulation fused salt tank |
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2018
- 2018-08-27 CN CN201821381358.3U patent/CN209197544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186296A (en) * | 2018-08-27 | 2019-01-11 | 上海锅炉厂有限公司 | A kind of solar energy optical-thermal heat accumulation fused salt tank |
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