CN206321110U - A kind of solid-liquid heat storage medium combined type fused salt storage tank - Google Patents
A kind of solid-liquid heat storage medium combined type fused salt storage tank Download PDFInfo
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- CN206321110U CN206321110U CN201621345046.8U CN201621345046U CN206321110U CN 206321110 U CN206321110 U CN 206321110U CN 201621345046 U CN201621345046 U CN 201621345046U CN 206321110 U CN206321110 U CN 206321110U
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- salt
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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
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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 solid-liquid heat storage medium combined type fused salt storage tank, including storage salt cellar, heat-insulation layer, electric heater, auxiliary heat accumulation groove, pump for liquid salts, agitator, enters salt mouthful, salt outlet and fused salt.The storage salt cellar is made up of top cover, housing and base plate.It is pump for liquid salts that the center insertion of the top cover, which is provided with by agitator, agitator,；45 ° of rotate counterclockwise is provided with into salt mouthful, and storage salt cellar inner bottom part is provided with electric heater and auxiliary heat accumulation groove, and gitter brick or heat-storing material can be put or be filled to the auxiliary heat accumulation groove of bottom, and the outer surface of the top cover and housing that store up salt cellar is provided with heat-insulation layer.The utility model instead of the invalid fused salt of major part for submerging electric heater using the higher and cheap gitter brick of good heat conductivity, specific heat capacity and heat-storing material, accumulation of heat demand can not only be met, cost of investment can be also reduced, with good engineering application value.
Description
Technical field
The utility model belongs to technical field of energy storage, is related to a kind of solid-liquid heat storage medium combined type fused salt storage tank, specifically relates to
And a kind of fused salt storage tank that can be applied to Molten Salt Heat Transfer hold over system being made up of gitter brick or heat-storing material and accumulation of heat fused salt.
Background technology
Fused salt tank is a kind of energy storage device, and it is one of capital equipment of fused salt hold over system.At present, fused salt hold over system
Main use in double can system, i.e. hold over systems is provided with high temperature melting salt cellar and low-temperature molten salt tank.In heat-accumulating process, low-temperature molten salt
The fused salt of tank is transported to heating in heat source side heat transmission equipment and becomes high-temperature molten salt, and subsequent high-temperature molten salt is stored in high temperature melting salt cellar
In, it is necessary to which during with heat, high-temperature molten salt, which is exported and entered from high temperature storage salt cellar, carries out heat exchange with hot junction heat transmission equipment, discharges hot
Become after amount low-temperature molten salt return to low temperature storage salt cellar in continue next time circulation.
With the continuous ripe and development of fused salt heat storage technology, scale of the fused salt hold over system on engineer applied is increasingly
Greatly, the fused salt tank of configuration Large Copacity is correspondingly also required that to maintain the operation of system.In order to prevent that fused salt solidifies in fused salt tank, leads to
Often accumulation of heat fused salt is directly heated in fused salt pot bottom sets electrical immersion heater to tank, temperature of molten salt is not less than it
Freezing point temperature, it is therefore desirable to which the fused salt for reserving certain depth in fused salt pot bottom submerges the metal parts of electric heater.Example
Such as, in the solar energy thermal-power-generating experimental power station Solar Two of California, USA double tank fused salt hold over systems, each
Fused salt tank has the fused salt extended residual of about 1 meter of depth in tank bottom, causes effective accumulation of heat volume of fused salt tank to only have tank volume
85%.The fused salt for being reserved in fused salt pot bottom cannot be used for regenerative heat exchange, belong to invalid fused salt, and the volume of fused salt tank is bigger,
Invalid fused salt amount is also bigger, and this will cause the heat storage performance of fused salt hold over system to reduce, and cost of investment increase.
Found by the retrieval to prior art, Chinese patent literature CN20298422U, day for announcing 2013-05-08,
There is provided a kind of fused salt heat-storing device, it is characterized in that the bottom of main molten salt cellar and the bottom of secondary fused salt tank are connected by connecting pipe
Logical, pump for liquid salts is arranged on the discharge outlet of secondary fused salt tank, and fused salt, main molten salt cellar are stored jointly by main molten salt cellar and secondary fused salt tank
Main function be storage, the main function of secondary fused salt tank is conveying；Chinese patent literature CN203561259U, the day for announcing
2014-04-23 is there is provided a kind of economizing type fused salt tank, it is characterized in that electric heater is arranged on cylindrical tank inner bottom part, melts
Salt pump suction pipe is arranged in cylindrical tank body, and the bottom of cylindrical tank is provided with conical tank bottom, conical tank bottom and cylinder
The junction of shape tank body is located at the lower section of electric heater, is hollow structure between fused salt tank base and conical tank bottom；It is Chinese special
Sharp document number CN203572066U, day for announcing 2014-04-30 are there is provided a kind of fused salt storage container of high availability, and it is special
It is that fused salt is provided with two storage tanks to levy, and each tank top, which is provided between submerged pump, two submerged pumps, is provided with molten salt heater,
The bottom of storage tank is ladder bottom, and the impeller of submerged pump is placed in ladder bottom lowest part.
However, either above-mentioned prior art occupation area of equipment is larger, cost of investment is higher, or manufacturing process is complicated,
Improvement advantage is not obvious, thus limits promoting the use of for appropriate technical solution.
Utility model content
The utility model is larger for occupation area of equipment present in prior art, and cost of investment is higher or manufactures work
Skill is complicated, and improving the technical problems such as advantage is not obvious, there is provided a kind of solid-liquid heat storage medium combined type fused salt storage tank, solid and liquid
Heat storage medium is combined, heat storage performance is good, simple in construction and with low cost.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of solid-liquid heat storage medium combined type
Fused salt storage tank, including storage salt cellar, heat-insulation layer, electric heater, auxiliary energy storage groove, pump for liquid salts, agitator, enter salt mouth, salt outlet, melt
Salt, top cover, housing and base plate,
The top of the storage salt cellar is provided with top cover, and the center insertion of the top cover is provided with agitator, the surface of the top cover
Positioned at agitator and enter embedded between the center line of salt mouthful to be provided with pump for liquid salts；
The inwall of the storage salt cellar is housing；The outer surface of the housing and the outer surface of top cover are equipped with heat-insulation layer, institute
The inner bottom for stating storage salt cellar is provided with base plate, and the base plate is provided with auxiliary energy storage groove；
The bottom side for storing up salt cellar is provided with salt outlet and electric heater through heat-insulation layer and housing insertion, and the electricity adds
Hot device is located at the top of auxiliary energy storage groove.
Preferably, the electric heater is electrical immersion heater.
Preferably, the material of the heat-insulation layer is alumina silicate fiber felt, asbestos-free calcium silicate or aerogel blanket.
Preferably, there is 10~20mm gap between the electric heater and auxiliary energy storage groove, described auxiliary storage
The material of heat channel 4 is identical with the material for storing up salt cellar.
Preferably, putting or filling gitter brick or heat-storing material inside the auxiliary heat accumulation groove, material is magnesia
(MgO), oxidation bauxite (Al2O3), silica (SiO2) or it is combined or other cheap, specific heat capacities are big, reliable and stable
Heat-storing material or its combination.
Preferably, the fused salt is the molten state liquid of two or more inorganic salt mixt.
Compared with prior art, the utility model is had an advantageous effect in that：The utility model uses cheap accumulation of heat
Brick instead of the invalid fused salt of major part for submerging electric heater, and described gitter brick has a good heat conductivity, specific heat capacity compared with
High advantage, use of the gitter brick in Molten Salt Heat Transfer hold over system energy storage device can not only meet accumulation of heat demand, can also drop
Low investment cost, contributes to large-scale promotion application of the present utility model.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is a kind of the utility model auxiliary sectional view of arrangement mode of heat accumulation groove；
Fig. 3 is the sectional view that the utility model aids in another arrangement mode of heat accumulation groove；
Fig. 4 is the structure chart that the utility model aids in heat accumulation groove；
Fig. 5 is the explosive view that the utility model aids in heat accumulation groove.
1- stores up salt cellar in figure, and 2- heat-insulation layers, 3- electric heaters, 4- auxiliary energy storage grooves, 5- pump for liquid salts, 6- agitators, 7- enters
Salt mouthful, 8- salt outlets, 9- fused salts, 10- top covers, 11- housings, 12- base plates.
Embodiment
It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art be better understood from the technical solution of the utility model
Example is applied to elaborate to the utility model.
Embodiment 1：
Embodiment of the present utility model discloses a kind of solid-liquid heat storage medium combined type fused salt storage tank, as illustrated, including
Storage salt cellar 1, heat-insulation layer 2, electric heater 3, auxiliary energy storage groove 4, pump for liquid salts 5, agitator 6, enter salt mouthfuls 7, salt outlet 8, fused salt 9,
Top cover 10, housing 11 and base plate 12,
The top for storing up salt cellar 1 is provided with top cover 10, and the center insertion of top cover 10 is provided with agitator 6, and the surface of top cover 10 is located at
It is embedded between agitator 6 and the center line for entering salt mouthful 7 to be provided with pump for liquid salts 5；
The inwall for storing up salt cellar 1 is housing 11；The outer surface of housing 11 and the outer surface of top cover 10 are equipped with heat-insulation layer 2, storage
The inner bottom of salt cellar 1 is provided with base plate 12, and base plate 12 is provided with auxiliary energy storage groove 4；
The bottom side for storing up salt cellar 1 is provided with salt outlet 8 and electric heater 3, electrical heating through heat-insulation layer 2 and the insertion of housing 11
Device 3 is located at the top of auxiliary energy storage groove 4.
In the present embodiment, electric heater 3 is electrical immersion heater.
In the present embodiment, the material of heat-insulation layer 2 is alumina silicate fiber felt, asbestos-free calcium silicate or aerogel blanket.
In the present embodiment, between electric heater 3 and auxiliary energy storage groove 4 exist 10~20mm gap, auxiliary heat accumulation groove 4
Material with store up salt cellar 1 material it is identical.
In the present embodiment, gitter brick or heat-storing material are put or fill inside auxiliary heat accumulation groove 4, material is magnesia
(MgO), oxidation bauxite (Al2O3), silica (SiO2) or it is combined or other cheap, specific heat capacities are big, reliable and stable
Heat-storing material or its combination.
In the present embodiment, fused salt is the molten state liquid of two or more inorganic salt mixt.
In the present embodiment, auxiliary heat accumulation groove is arranged in tank bottom, and has a variety of placement arrangement modes.Pump for liquid salts under normal circumstances
Tank bottom can be extended to from fused salt tank deck with agitator, it is auxiliary in order to prevent the use for aiding in heat accumulation groove to hinder pump for liquid salts and agitator
Helping heat accumulation groove has two kinds of designs：1) it is to be threaded the circular trough of knob lid, the 1/3-1/5 of a diameter of tank diameter or so,
Height can accordingly be set according to tank body and fused salt reserves, generally the 1/6 of tank body height, take 3-5 auxiliary heat accumulation groove
Around tank bottom center arrangement, each two auxiliary heat accumulation groove at intervals of 30-50cm；2) it is the hollow ring with cannulated threaded knob lid
Shape groove, 1/2 or so of a diameter of tank diameter, highly can accordingly it be set according to tank body and fused salt reserves, generally tank
The 1/6 of body height, is arranged in tank bottom center, and the interior circular diameter of annular groove is greater than the work model of pump for liquid salts and stirrer bottom
Enclose.
In the present embodiment, fused salt storage tank is mainly used in storing the accumulation of heat fused salt of Molten Salt Heat Transfer hold over system.
In the present embodiment, described solid-liquid heat storage medium combined type energy storage device is passed as solar energy thermal-power-generating station fused salt
The low-temperature molten salt tank of thermal regenerator system or fused salt heat accumulating type electric heating system.In order to ensure the fused salt temperature in low-temperature molten salt tank
Degree is not less than its freezing point temperature, it is necessary to be heated using electric heater to fused salt, to prevent that fused salt from solidifying.First turn on electricity
Heater, electric heater converts electrical energy into heat energy and passes to fused salt and gitter brick, is maintained at the temperature in fused salt tank and sets
It is more than definite value.In heating process, make the temperature of molten salt of different spatial in storage salt cellar equal by the stirring action of agitator
Even distribution, reaches the effect for eliminating thermograde in tank.
Embodiment 2：
Identical with the feature of embodiment 1, described solid-liquid heat storage medium combined type energy storage device is used as fused salt regenerative electrochemical
The high temperature melting salt cellar of heating system.In the power system low power consumption period, opening electric heater enters to fused salt and gitter brick
Row heating, becomes high-temperature molten salt, then high-temperature molten salt is delivered to and added with hot junction heat transmission equipment by pump for liquid salts after low-temperature molten salt heating
Heat recirculated water heat supply user heating.
The utility model is described in detail above by embodiment, but the content is only of the present utility model shows
Example property embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.Protection domain of the present utility model is by right
Claim is limited.It is all to utilize technical scheme described in the utility model, or those skilled in the art is in the utility model technology
Under the inspiration of scheme, in essence of the present utility model and protection domain, design similar technical scheme and reach above-mentioned skill
Art effect, or the impartial change made to application range and improvement etc., it all should still belong to patent of the present utility model and contain
Within lid protection domain.
Claims (6)
1. a kind of solid-liquid heat storage medium combined type fused salt storage tank, including it is storage salt cellar, heat-insulation layer, electric heater, auxiliary energy storage groove, molten
Salt pump, agitator, enter salt mouth, salt outlet, fused salt, top cover, housing and base plate, it is characterised in that
The top of the storage salt cellar is provided with top cover, and the center insertion of the top cover is provided with agitator, and the surface of the top cover is located at
It is embedded between agitator and the center line for entering salt mouthful to be provided with pump for liquid salts；
The inwall of the storage salt cellar is housing；The outer surface of the housing and the outer surface of top cover are equipped with heat-insulation layer, the storage
The inner bottom of salt cellar is provided with base plate, and the base plate is provided with auxiliary energy storage groove；
The bottom side of the storage salt cellar is provided with salt outlet and electric heater, the electric heater through heat-insulation layer and housing insertion
Positioned at the top of auxiliary energy storage groove.
2. a kind of solid-liquid heat storage medium combined type fused salt storage tank according to claim 1, it is characterised in that the electrical heating
Device is electrical immersion heater.
3. a kind of solid-liquid heat storage medium combined type fused salt storage tank according to claim 1, it is characterised in that the heat-insulation layer
Material be alumina silicate fiber felt, asbestos-free calcium silicate or aerogel blanket.
4. a kind of solid-liquid heat storage medium combined type fused salt storage tank according to claim 1, it is characterised in that the electrical heating
There is 10~20mm gap, the material of described auxiliary heat accumulation groove and the material phase of storage salt cellar between device and auxiliary energy storage groove
Together.
5. a kind of solid-liquid heat storage medium combined type fused salt storage tank according to claim 1, it is characterised in that the auxiliary storage
Gitter brick or heat-storing material are put or filled inside heat channel, and material is magnesia (MgO), oxidation bauxite (Al2O3), silica
(SiO2) or its combination or big, the reliable and stable heat-storing material of other cheap, specific heat capacities or its combination.
6. a kind of solid-liquid heat storage medium combined type fused salt storage tank according to claim 1, it is characterised in that the fused salt is
The molten state liquid of two or more inorganic salt mixt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621345046.8U CN206321110U (en) | 2016-12-08 | 2016-12-08 | A kind of solid-liquid heat storage medium combined type fused salt storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621345046.8U CN206321110U (en) | 2016-12-08 | 2016-12-08 | A kind of solid-liquid heat storage medium combined type fused salt storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN206321110U true CN206321110U (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621345046.8U Expired - Fee Related CN206321110U (en) | 2016-12-08 | 2016-12-08 | A kind of solid-liquid heat storage medium combined type fused salt storage tank |
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| Country | Link |
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| CN (1) | CN206321110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500537A (en) * | 2016-12-08 | 2017-03-15 | 北京通联弗莱科技有限公司 | A kind of solid-liquid heat storage medium combination type fused salt storage tank |
| CN107328120A (en) * | 2017-08-29 | 2017-11-07 | 中机华信诚电力工程有限公司 | A kind of energy storage heat-exchange system of high and low temperature fused salt |
| CN108846194A (en) * | 2018-06-08 | 2018-11-20 | 青岛鸿瑞电力工程咨询有限公司 | A kind of design method of fused salt tank |
-
2016
- 2016-12-08 CN CN201621345046.8U patent/CN206321110U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500537A (en) * | 2016-12-08 | 2017-03-15 | 北京通联弗莱科技有限公司 | A kind of solid-liquid heat storage medium combination type fused salt storage tank |
| CN107328120A (en) * | 2017-08-29 | 2017-11-07 | 中机华信诚电力工程有限公司 | A kind of energy storage heat-exchange system of high and low temperature fused salt |
| CN108846194A (en) * | 2018-06-08 | 2018-11-20 | 青岛鸿瑞电力工程咨询有限公司 | A kind of design method of fused salt tank |
| CN108846194B (en) * | 2018-06-08 | 2022-03-08 | 青岛鸿瑞电力工程咨询有限公司 | Design method of molten salt tank |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20191208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |