CN209246758U - A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique - Google Patents
A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique Download PDFInfo
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- CN209246758U CN209246758U CN201822004263.6U CN201822004263U CN209246758U CN 209246758 U CN209246758 U CN 209246758U CN 201822004263 U CN201822004263 U CN 201822004263U CN 209246758 U CN209246758 U CN 209246758U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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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 absorption energy storage equipment of big concentration difference based on active crystallization technique, the heat exchange of NaOH solution tank NaOH and refrigerant tank is integrally formed by the utility model with shower portion, centre uses liquid barrier, it can be effectively reduced steam and pass through resistance, the use of gas valve and gas piping is avoided, solution concentration difference and energy storage density can be effectively promoted.Equipment overall structure and operational efficiency are advanced optimized.
Description
Technical field
The utility model relates to a kind of absorption energy storage equipment of big concentration difference based on active crystallization technique belongs to refrigeration, system
Heat and energy storage area.
Background technique
Absorption accumulation of energy has the advantages that energy storage density is high, heat loss is small, before Refrigeration & Air-Conditioning field is a kind of development
The preferable technology of scape is of great significance to the utilization and environmental protection of the low-grade energies such as industrial exhaust heat, renewable energy.
There are some problems for the utilization of the low-grade energies such as renewable energy.First, due to the seasonal changing of weather, round the clock
Alternately, the variation of technique production and personnel activity, can source user its terminal be hot and cold, electrical load requirement is in time, intensity and space
On distribution extremely it is uneven, often will appear the peak valley phenomenon of workload demand.Second, the renewable energy such as solar energy are by daytime
The limitation of the natural conditions such as night, season, geographic latitude and height above sea level and the influence of the enchancement factors such as fine, negative, cloud, rain, are arrived
Solar irradiance up to ground is both intermittent and extremely unstable.
There is also certain restricted for residual-heat utilization technology.Residual heat resources are although from a wealth of sources, wide temperature range, there are shapes
Formula multiplicity, but due to there is periodical, discontinuity or fluctuation in art production process, cause excess heat unstable；Waste heat
In medium or contain corrosive substance；Residual heat using device is limited by inherent conditions such as place, productions.
These energy described above have the shortcomings that randomness, low-density, low-grade, and there are the times for the fluctuation of load
It is asynchronous in intensity, limit the direct utilization of this kind of energy form.
Energy accumulating technique can relatively efficiently solve the mismatch between energy resource supply and demand in time, space and intensity
Contradiction, be a kind of means of more important raising energy utilization rate in energy-saving field.The thermal energy used in the past stores technology
In, sensible heat and latent heat accumulator are widely used, and are developed more mature.Chemical accumulation of energy research is started late.Select suitable work
It verifies, such as lithium bromide/water, water/ammonia, generation temperature can be reduced, so that the renewable energy such as solar energy, industrial exhaust heat energy etc.
It can be well used within the system.
After the solution containing working medium pair is heated to be concentrated by evaporation, the concentration of solution increases, and absorption energy storage equipment can be improved
Energy storage density and energy storage efficiency.However, after accumulation of energy terminates to form the solution of high energy degree, if storage time is longer, solution
To be influenced to will appear two Risks by environment cooling: 1) heat in NaOH solution tank NaOH is passed by tank skin and pot bottom,
Solution after cooling can be precipitated crystal in the lower tank skin of temperature and pot bottom, so that this part of solution pot bottom crystalline substance can be piled up in
Body is difficult to releasing and can be completely dissolved in the stage；2) highly concentrated solution can precipitate crystal on solution pump, circulation line, influence solution and follow
The normal operation of loop system.It is stored for a long time at normal temperature to pursue highly concentrated solution, avoids crystal to appear in again above-mentioned
Two Risks regions (are not easy crystal dissolving area domain), if can actively be formed crystal and be controlled in the higher heat exchange of fluid flow rate preferably and hold
Diffluent region enables it to releasing and can be completely dissolved in the stage, and solves the problems, such as crystal accumulation in NaOH solution tank NaOH.Traditional accumulation of energy
System occurs that solution crystallization process in the device near zone, energy as shown in Figure 1, increasing internal exchanger in energy storage tank
Enough efficiently solve the problems such as crystallization is piled up in tank base and circulation line blocking.
But in order to realize that the accumulation of energy of bigger energy density, such design can improve, using raising solution concentration
It is a kind of good thinking.Design for Fig. 1, NaOH solution tank NaOH and refrigerant tank intermediate connection tube need using gas valve to control, and are
Reduction resistance, steam valve is larger, and pipeline is thicker, because can all increase resistance with valvular pipeline, is unfavorable for big dense
Spend the energy storage and release process of difference.
Utility model content
The problems of absorption accumulation of energy of above description is used for reference, is based on actively crystallizing skill the utility model proposes one kind
The absorption energy storage equipment of big concentration difference of art.
A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique, including refrigerant tank, NaOH solution tank NaOH, refrigerant
Inside tank, it is located at tank body bottommost containing refrigerant, First Heat Exchanger is located at centre, and refrigerant spray equipment is located at the first heat exchange
It above device, is pumped outside refrigerant tank containing refrigerant circulation, refrigerant liquid circulation loop, connects refrigerant liquid and refrigerant
Spray equipment；
Inside NaOH solution tank NaOH, the working medium containing absorbent and refrigerant composition is located at tank base, the second heat exchanger to solution
Among tank body, solution spraying device is located at the second heat exchanger top, and solution circulation pump, solution circulation are contained outside NaOH solution tank NaOH
Circuit connects aqueous liquids and solution spraying device；
It include spiral tube exchanger inside NaOH solution tank NaOH, spiral tube exchanger immerses working medium to solution inside, solution circulation
Electricity auxiliary heating is wound on circuit brings solution heating；Cooling water inlet connection spiral tube exchanger goes out subsequently into cooling water
Mouthful, filter screen is placed in spiral tube exchanger lower part, and solution circulation loop lower openings are lower than filter screen；
NaOH solution tank NaOH and its internal unit and First Heat Exchanger, refrigerant spray equipment and building enclosure form a whole knot
Structure is used to control the circulation of refrigerant gas using liquid barrier between building enclosure and NaOH solution tank NaOH, building enclosure lower part is individually set
Refrigerant tank is set, piping connection is used between refrigerant tank and building enclosure, valve is saved using refrigerant accumulation of energy and controls.
The second heat exchanger in the utility model can be used as generator use.Solution in NaOH solution tank NaOH passes through solution pump and pipe
Road enters spray equipment, and the second heat exchanger is heated by low-grade heat sources such as external solar, industrial exhaust heats, refrigerant in solution
By thermal evaporation, refrigerant gas is detached from solution, and the second heat exchanger is equivalent to generating device at this time, and circulating solution concentration constantly increases
It reaches the limit values.
The second heat exchanger in the utility model can be used as absorber use.Under vacuum conditions, concentrated solution liquid passes through
Liquid barrier enters spray equipment, and concentrated solution absorbs the refrigerant vapour from refrigerant tank, the thinning releasing heat of solution, concentrated solution
The heat released after absorption is taken away by the cooling water absorption in the second heat exchanger inside.
First Heat Exchanger in the utility model can be used as evaporator use.When concentrated solution absorbs gaseous refrigerant in NaOH solution tank NaOH
When agent, the temperature in refrigerant tank is lower, and is in vacuum environment, and refrigerant boil-off gas enters in NaOH solution tank NaOH to be inhaled by concentrated solution
It receives, the heat of recirculated water in First Heat Exchanger is taken away in the evaporation of refrigerant, and First Heat Exchanger is equivalent to evaporator at this time, can produce
Chilled water.
Liquid barrier isolation solution and refrigerant, use are used among First Heat Exchanger and the second heat exchanger in the utility model
Liquid barrier can effectively reduce the pressure that refrigerant passes through, and transformation, which improves, will improve accumulation of energy energy density, and save gas valve
And steam pipework, save manufacturing cost.
Spiral tube exchanger used in the NaOH solution tank NaOH of the utility model makes the concentrated solution quickly form crystallization in setting area
Domain.Using spiral tube exchanger, inside is passed through cooling water and is quickly cooled down concentrated solution.Spiral tube exchanger surface is as knot simultaneously
The nuclei of crystallization of brilliant process.After being passed through cooling water, the concentration of solution declines, and crystallization increases, and is promoted using the cooling solution of cooling water
Energy loss caused by crystallization process is relatively small relative to the energy that concentrated solution and crystallization are stored.
Filter screen structure is placed on solution pot bottom in the NaOH solution tank NaOH of the utility model, and filter screen can prevent vertical wall surface knot
Structure object falls to solution pot bottom, reduces pot bottom crystallization content, in order to avoid the operational efficiency of energy effect and circulating pump is released in influence, prevents
Block circulation line.
The NaOH solution tank NaOH of the utility model, solution circulation loop outer surface are all protected using flexible rubber-plastic foamed thermal insulating
Temperature.
Solution absorbent and refrigerant working medium used in the NaOH solution tank NaOH of the utility model to can be LiBr/H2O,
H2O/NH3, LiCl/H2O, LiNO3/H2O, NaBr/H2O, CaCl2/H2O, MgBr2/H2O etc., or it is one of or several
The mixture of substance.And it needs to be added in solution and equipment is delayed to corrode and improve the additive of solubility.
The utility model technology can be applied to the renewable energy such as solar energy, geothermal energy, industrial afterheat recovery and energy connection
For system.It is particularly adapted to the place of electric power areas of well-being and long period intermittence accumulation of energy.The device can be preferably low-grade
It is applied in the development and utilization of the energy.The utility model by the heat exchange of NaOH solution tank NaOH and refrigerant tank and shower portion be made into one it is whole
Body, centre use liquid barrier, can be effectively reduced steam by resistance, avoid the use of gas valve and gas piping, can
Effectively promote solution concentration difference and energy storage density.Equipment overall structure and operational efficiency are advanced optimized.
Detailed description of the invention
Fig. 1 is traditional energy storage equipment schematic diagram.
Fig. 2 is in the utility model based on actively crystallizing the big concentration difference energy storage equipment schematic diagram of formula.
Specific embodiment
Content is introduced with above-mentioned with reference to the accompanying drawing, further detailed retouch is done to the technical solution of the utility model
It states.
As Fig. 1 gives traditional absorption storage energy release device schematic diagram.The device contains: refrigerant tank 01, NaOH solution tank NaOH
02, it is connected between refrigerant tank 01 and NaOH solution tank NaOH 02 by refrigerant vapour pipeline 20, and controlled by open and close valve 21.
Inside refrigerant tank 01, it is located at tank body bottommost containing refrigerant 03, First Heat Exchanger 05 is located at centre, refrigerant
Spray equipment 07 is located above First Heat Exchanger 05, and First Heat Exchanger import 13 and First Heat Exchanger outlet 14 can be used as cooling
Water/freezing water entrance.Outside connects 03 liquid of refrigerant containing refrigerant circulation pump 09, refrigerant liquid circulation loop 11
With refrigerant spray equipment 07.
Inside NaOH solution tank NaOH 02, the working medium containing absorbent and refrigerant composition is located at tank base, second changes to solution 04
Hot device 06 is located among tank body, and solution spraying device 08 is located at the second heat exchanger top, and solution circulation pump 10, solution are contained in outside
Circulation loop 12 connects 04 liquid of solution and solution spraying device 08.Open and close valve 21 is used to control the flowing of gas.The device energy
Realize intermittent energy storage and release process.
Accumulation of energy process is with the working medium in NaOH solution tank NaOH 02 to the refrigerant evaporation of solution 04 and and in refrigerant tank 01
It is cooled to liquid refrigerant 03, solution 04 or its crystal energy store process in NaOH solution tank NaOH 02.Solution 04 is recycled by solution
Pump 10 and solution circulation line 12 enter solution spraying device 08.Solar energy, the renewable energy such as geothermal energy, industrial afterheat recovery
Low grade heat energy heat exchange after fluid generator is equivalent to by the second heat exchanger 06(by heat source import 15), heating is by molten
Dilute working medium that liquid spray equipment 08 sprays flows out generator by thermal source outlet 16 to solution 04, heat source heat exchanging fluid.
The refrigerant of heating evaporation passes through refrigerant vapour pipeline 20(opening valve 21), enter steam in refrigerant tank 01.In solution
Refrigerant constantly evaporates, and the concentration of absorbent is continuously increased, and is finally reached the solution concentration limit of set temperature and pressure condition
Value.Condenser is equivalent to by First Heat Exchanger 05(into the refrigerant vapour in refrigerant tank 01) cooling become refrigerant liquid
Body is deposited to tank base.What is walked in First Heat Exchanger 05 is cooling water, and First Heat Exchanger import 13 is cooling water inlet, first
Heat exchanger exit 14 is cooling water outlet.Since the absorbent working medium concentration in NaOH solution tank NaOH 02 increases, when solution concentration reaches most
When big, continuing heating just will appear crystallization.The increase of the concentration of solution and the formation of absorbent crystal save external heat
In the solution.In addition, spiral tube exchanger 22 can also be used as the inside heating generator of solution 04, heat source fluid need to be only passed through
Cooling water inlet 17 can accelerate solution accumulation of energy process.
Exoergic process is with the reduction of the liquid refrigerant 03 in refrigerant tank 01, and solution 04 absorbs refrigeration in NaOH solution tank NaOH 02
Agent, solution concentration is thinning, the process that contained energy discharges in working medium.Refrigerant tank 01 and NaOH solution tank NaOH 02 are all in vacuum state.
Valve 21 is opened, enables refrigerant vapour by refrigerant vapour pipeline 20 from refrigerant tank 01 to NaOH solution tank NaOH 02.Concentrated solution
04 enters solution spraying device 08 by solution circulation pump 10 and solution circulation loop 12, absorbs the system to come from refrigerant tank 01
Refrigerant vapour, absorption process are cooled down with the release of heat by the second heat exchanger 06, and life or heating heat can be produced
Water.The water being heated enters from heat source import 15, comes out from thermal source outlet 16.04 concentration of concentrated solution in NaOH solution tank NaOH 02 constantly subtracts
It is few.In refrigerant tank 01, refrigerant liquid 03 enters refrigerant by refrigerant circulation pump 09 and refrigerant circulation line 11
Spray equipment 07, refrigerant liquid are sprayed onto First Heat Exchanger 05, and 03 liquid absorption heat of vaporization of refrigerant becomes refrigerant
Gas, the release of 05 circulation line internal flow heat of First Heat Exchanger become cold water, this process can produce chilled water.At this time first
Heat exchanger 05 is equivalent to evaporator.05 internal flow of First Heat Exchanger is flowed into from First Heat Exchanger import 13, from First Heat Exchanger
14 outflow of outlet.Refrigerant liquid 03 in refrigerant tank 01 is constantly reduced, and solution 04 is continuously increased in NaOH solution tank NaOH 02, and concentration is not
Disconnected to reduce, concentrated solution becomes the release of weak solution energy.
Spiral tube exchanger 22 immerse working medium to solution 04 inside.Contain solution circulation pump 10, solution circulation loop in outside
12。
Spiral tube exchanger 22 is as the critical component for actively crystallizing accumulation of energy.Cooling water inlet 17 connects spiral tube exchanger
22 are connected with heat source outlet 16 with the second heat exchanger 06 subsequently into cooling water outlet 18, heat source 15.When being stored
When energy, heat source hot water heating is used in the second heat exchanger 06, when carrying out releasing energy, due to exoergic process heat release, the second heat exchanger
It is cooled down in 06 using cooling water.Spiral tube exchanger enters in solution 04, places filter screen 23 in its underpart, passed through
Filter screen bracket 26 is supported, and filter screen 26 is prevented to be deposited to bottom, is influenced circulating for solution and is released energy effect with accumulation of energy.It is molten
Flow container is connected with refrigerant vapour pipeline 20, and baffle 19 is provided on steam pipework 20.12 lower openings of solution circulation loop are low
In filter screen 22.
For the deficiency of above method, NaOH solution tank NaOH is further improved in this patent.As Fig. 2 gives active knot
The brilliant absorption energy storage equipment schematic diagram of big concentration difference.
In the utility model, maximum improvement is by NaOH solution tank NaOH 02 and its internal unit and First Heat Exchanger 05, spray thrower
07 and the composition of building enclosure 31 with an overall structure, using liquid barrier 30 for controlling between building enclosure 31 and NaOH solution tank NaOH 02
The circulation of refrigerant gas.Refrigerant storage tank 01, refrigerant storage tank 01 and building enclosure is separately provided in building enclosure lower part
Piping connection is used between 31, is stored using refrigerant and is saved the control of valve 32.The benefit of such design is as follows: 1) avoiding using big ruler
Very little gas valve and gas piping uses liquid barrier 30, effectively reduces gas and pass through between refrigerant tank and building enclosure 31
Resistance；2) it is stored using liquid and saves the preservation refrigerant liquid of valve 32, can be realized refrigerant long-time storage；3) such to set
Meter reduces the use of material, saves production cost；4) the utility model is adapted to intermittent accumulation of energy process, and in longer cycle
Utilize advantage more obvious during accumulation of energy.
The specific embodiment of the described actively absorption energy storage equipment of big concentration difference of crystallization of this patent is as follows:
Embodiment one: accumulation of energy process
Accumulation of energy process with the working medium of the absorbent in NaOH solution tank NaOH 02/refrigerant composition to the refrigerant evaporation of solution 04 and
Spraying cooling is at liquid refrigerant 03 in building enclosure 31, in NaOH solution tank NaOH 02 concentration of solution 04 or its form 25 energy of crystal
The process of storage.Solution 04 enters solution spraying device 08 by circulating pump 10 and solution circulation line 12.Solar energy, geothermal energy
Etc. renewable energy, the low grade heat energy etc. of industrial afterheat recovery, fluid after heat exchange changed by heat source import 15 by second
Hot device 06(is equivalent to generator), dilute working medium that heating is sprayed by solution spraying device 08 is to solution 04, heat source heat exchange
Fluid passes through 16 the second heat exchanger 06 of outflow of outlet.The refrigerant gas of heating evaporation, by liquid barrier 30, into building enclosure
In 31.Refrigerant constantly evaporates, and the concentration of absorbent is continuously increased in NaOH solution tank NaOH 02, is finally reached set temperature and pressure condition
Solution concentration limiting value.Condenser is equivalent to by First Heat Exchanger 05(into the refrigerant vapour in building enclosure 31) it is cold
But become refrigerant liquid, opening, which stores, saves valve 32, and refrigerant liquid storage is saved into refrigerant tank.First Heat Exchanger
What is walked in 05 is cooling water, and First Heat Exchanger import 13 is cooling water inlet, and First Heat Exchanger outlet 14 is cooling water outlet.By
Absorbent working medium concentration in NaOH solution tank NaOH 02 increases, and when solution concentration reaches maximum, continuing heating just will appear crystallization.It is molten
The increase of the concentration of liquid and the formation of absorbent crystal save external energy in the solution.
Under the vacuum pressure and heating temperature condition of setting, 04 concentration of solution can be reached the limit values, when continuing heating, meeting
There is crystallization 25, energy is saved.It needs to crystallize absorbent working medium in the region of the setting of good effect of heat exchange, prevents accumulation of energy
There is the region that flowing is small, heat exchange influence is weak in crystal 25, in tank base, wall surface and pipe valve.Accordingly, it is considered to by spiral
Heat exchange of heat pipe 22 immerses among solution 04,22 rough surface of spiral tube exchanger, containing a large amount of required for crystallization process
The nuclei of crystallization.(start crystal grain occur) when the concentration of solution accumulation of energy Process liquor 04 reaches capacity, can exchange heat in helix tube rapidly
It is passed through cooling water inside device 22, is flowed into from cooling water inlet 17, cooling water outlet 18 flows out, this Process liquor crystallization process will
It is carried out on cold 22 wall surface of spiral tube exchanger as much as possible, reduces the crystallization of wall surface, tank base and circulation line
Amount.It is further reduced crystal underneath with filter screen 23 in spiral tube exchanger 22 simultaneously and falls to tank base.Using cold
But cooling the lost heat of water is very little relative to the energy that crystallization process is stored.Solution concentration reduces after actively crystallizing,
Low grade heat energy is stored as the chemical energy of absorbent working medium, concentrated solution and crystallization.The use of such method will make the synthesis of solution
Concentration difference increases, and the energy in the concentrated solution and crystal stored can store for a long time.
Embodiment two: exoergic process
Reduction of the exoergic process with the liquid refrigerant 03 in refrigerant tank 01, solution 04 and crystal 25 in NaOH solution tank NaOH 02
Refrigerant is absorbed, the concentration of solution is constantly thinning, the process that contained energy discharges in working medium.Refrigerant tank 01 and NaOH solution tank NaOH 02 are all
In vacuum state.Opening, which stores, saves valve 32, enables refrigerant vapour by refrigerant vapour pipeline 20 from refrigerant tank
01 arrives NaOH solution tank NaOH 02.Concentrated solution 04 enters solution spraying device 08 by circulating pump 10 and solution circulation line 12, absorbs from system
The refrigerant vapour that cryogen tank 01 comes, absorption process are cooled down with the release of heat by the second heat exchanger 06, can be with
Produce life or heating hot water.The water being heated enters from cooling water inlet 15, from cooling water outlet 16.It is dense in NaOH solution tank NaOH 02
04 concentration of solution is constantly reduced.In refrigerant tank 01, refrigerant liquid 03 passes through circulating pump 09 and refrigerant circulation line 11
Into refrigerant spray equipment 07, refrigerant liquid is sprayed onto First Heat Exchanger 05,03 liquid absorption heat of vaporization of refrigerant,
Become refrigerant gas, the release of 05 circulation line internal flow heat of First Heat Exchanger becomes cold water, this process can produce freezing
Water.First Heat Exchanger 05 is equivalent to evaporator at this time.05 internal flow of First Heat Exchanger is flowed into from chilled water import 13, from freezing
Water inlet 14 flows out.Refrigerant liquid 03 in refrigerant tank 01 is constantly reduced, and solution 04 is continuously increased in NaOH solution tank NaOH 02, concentration
It constantly reduces, concentrated solution becomes the release of weak solution energy.
Embodiment three: big concentration difference accumulation of energy process is actively crystallized
When accumulation of energy process is completed, when the concentration of solution reaches maximum and crystallizes, opens and actively crystallize accumulation of energy helix tube
22 cooling water system of heat exchanger, solution are quickly cooled down, and crystal grain is quickly formed on spiral tube exchanger 22, turn off building enclosure
31 and refrigerant tank among the accumulation of energy that connects save valve 32, the refrigerant of liquid is stored in refrigerant tank 01, at this time solution
In the concentrated solution 03 and crystal grain 25 of energy stores in tank.This kind of method can be realized the accumulation of energy of big concentration difference, and be stored
Energy can long-time storage.It can be applied well during intermittent accumulation of energy for a long time.
Claims (3)
1. a kind of absorption energy storage equipment of big concentration difference based on active crystallization technique, including refrigerant tank (01), NaOH solution tank NaOH (02),
Refrigerant tank (01) is internal, is located at tank body bottommost containing refrigerant (03), First Heat Exchanger (05) is located at centre, refrigerant spray
Shower device (07) is located at First Heat Exchanger (05) above, and refrigerant circulation pump (09), refrigerant are contained outside refrigerant tank (01)
Liquid circulation loop (11) connects refrigerant (03) liquid and refrigerant spray equipment (07)；
NaOH solution tank NaOH (02) is internal, and the working medium containing absorbent and refrigerant composition is located at tank base, second changes to solution (04)
Hot device (06) is located among tank body, and solution spraying device (08) is located at the second heat exchanger (06) top, contains outside NaOH solution tank NaOH (02)
Have solution circulation pump (10), solution circulation loop (12), connects solution (04) liquid and solution spraying device (08)；
It include spiral tube exchanger (22) inside NaOH solution tank NaOH (02), spiral tube exchanger (22) immerses working medium in solution (04)
Portion, solution (04) heating is given in winding electricity auxiliary heating band (24) in solution circulation loop (12)；Cooling water inlet (17) connects spiral shell
Coil heat exchanger (22) places filter screen (23) subsequently into cooling water outlet (18), spiral tube exchanger (22) lower part, solution
Circulation loop (12) lower openings are lower than filter screen (23)；
It is characterized in that, NaOH solution tank NaOH (02) and its internal unit and First Heat Exchanger (05), refrigerant spray equipment (07) and enclosing
Protection structure (31) forms a whole structure, using liquid barrier (30) for controlling between building enclosure (31) and NaOH solution tank NaOH (02)
The circulation of refrigerant gas, building enclosure (31) lower part are separately provided refrigerant tank (01), refrigerant tank (01) and building enclosure
(31) piping connection is used between, is saved valve (32) using refrigerant accumulation of energy and is controlled.
2. a kind of absorption energy storage equipment of big concentration difference based on active crystallization technique according to claim 1, feature exist
In, solution absorbent and refrigerant working medium used in NaOH solution tank NaOH to for LiBr/H2O, H2O/NH3, LiCl/H2O, LiNO3/
The mixture of H2O, NaBr/H2O, CaCl2/H2O, MgBr2/H2O one of which or several substances.
3. a kind of absorption energy storage equipment of big concentration difference based on active crystallization technique according to claim 1, feature exist
In the refrigerant tank, NaOH solution tank NaOH, solution circulation loop outer surface are all kept the temperature using flexible rubber-plastic foamed thermal insulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822004263.6U CN209246758U (en) | 2018-12-01 | 2018-12-01 | A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822004263.6U CN209246758U (en) | 2018-12-01 | 2018-12-01 | A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique |
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| CN209246758U true CN209246758U (en) | 2019-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443065A (en) * | 2018-12-01 | 2019-03-08 | 中节能城市节能研究院有限公司 | A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique |
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2018
- 2018-12-01 CN CN201822004263.6U patent/CN209246758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443065A (en) * | 2018-12-01 | 2019-03-08 | 中节能城市节能研究院有限公司 | A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique |
| CN109443065B (en) * | 2018-12-01 | 2023-12-26 | 中节能城市节能研究院有限公司 | Large concentration difference absorption type energy storage device based on active crystallization technology |
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