CN105733518A - Integrated energy storage structure, preparation method and application - Google Patents
Integrated energy storage structure, preparation method and application Download PDFInfo
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- CN105733518A CN105733518A CN201610186670.6A CN201610186670A CN105733518A CN 105733518 A CN105733518 A CN 105733518A CN 201610186670 A CN201610186670 A CN 201610186670A CN 105733518 A CN105733518 A CN 105733518A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention relates to an integrated energy storage structure. The structure comprises an encapsulation shell, and a phase-change heat storage material encapsulated in the encapsulation shell. The energy storage structure provided by the invention is an integrated structure composed of the encapsulation shell and the phase-change heat storage material, the problem that the single heat storage material is bad in heat storage effect is overcome, the problem that the fused salt heat storage material is hard to store, and easy to leak and corrode is overcome, and the advantage of the composite material is sufficiently played; and the structure is simple, the safe reliability of the heat storage system is guaranteed, and the heat conductivity is good.
Description
Technical field
The invention belongs to the technical field and the energy and material scientific domain that produce high temperature resistant heat accumulating corrosion leakage coating by chemical method, it is specifically related to a kind of integral type energy storing structure, preparation method and purposes, particularly to a kind of High-temperature composite phase change heat and the integral type energy storing structure of corrosion-inhibiting coating integral type encapsulation, preparation method and purposes.
Background technology
Improve energy conversion and utilization ratio is that China's the Implement of sustainable development strategy must top-priority key subjects.Many energy utilization systems also exist the unmatched contradiction of energy supply and demand, causes Energy harvesting irrationality and a large amount of waste.At present, the discharge capacity of industrial high-temperature flue gas and high-temperature residual heat reaches 57000m3/ h, temperature 900～1100 DEG C.Resource is not only wasted in long-term discharge, and atmospheric environment also causes very important thermal pollution.Recycle above-mentioned high temperature waste hot solve environmental thermal pollution at the same time it can also be it to be converted into available energy form, there is important using value and social benefit.
High temperature phase change material (pcm) especially phase change materials has the advantages such as high-melting-point, storage density is high, the approximate isothermal of suction/exothermic process, process are easy to control, can meet the requirement reclaiming high-temperature flue gas and high-temperature residual heat, be the study hotspot in current heat-storage technology field.
And inorganic salt has great advantage in high-temperature phase-change heat storage application, so at present high-temperature heat-storage phase-change material is with inorganic salt or alloy for main component.But the shortcoming that inorganic molten salt is in actual applications is also very prominent: fuse salt is a highly important heat accumulating of class, have use temperature compared with high, latent heat is big, storage density is high, degree of supercooling is little, low cost and other advantages, is subject to domestic and international extensive concern.But fuse salt has stronger corrosive nature when high temperature; the Corrosion Protection of container is required significantly high; special high temperature (more than 500 DEG C) fuse salt heat accumulating; as substantially there is corrosion all of stainless steel capital by chlorate; seriously govern fuse salt heat accumulating scale application; making the use temperature phase transformation heat content high, high of chlorate and the advantage of low cost be difficult to give full play to, villaumite is very strong to container corrosion；Villiaumite solid-liquid volume contraction is very big, corrosion is strong；Nitrate heat of fusion is less, thermal conductivity is low, use in easily produce hot-spot etc..Therefore development integral type heat accumulating and the coating of resistance to fused salt corrosion, promote that the scale of fused salt heat accumulating uses and have great importance.
In order to solve this problem, those skilled in the art adopts pottery as matrix load high-temperature phase-change heat storage material, inorganic salt and ceramic matrix are carried out compound, but in fused salt phase transition process, liquid phase easily leaks, especially under the high temperature conditions inorganic salt has stronger corrosivity, and the container contained is proposed extremely harsh requirement.US5567346 discloses the heat accumulating formed with sodium sulfate, ammonium chloride, sodium bromide and ammonium sulfate for primary raw material, but purely inorganic salt needs container containing bulky, and heat insulating ability and safety to system are had higher requirement；US5685151 discloses for solar energy heat-storage material, and main composition is sodium chloride, and the container of the storage salt of use is special stainless steel material, and price is prohibitively expensive, after life-time service, still there is corrosion.
Therefore, a kind of high-temperature phase-change heat storage material is urgently developed in this area, and it can solve the problem that existing heat accumulating easily corrodes packaging body, it is easy to the defect of leakage, and preparation technology is simple, less costly.
Summary of the invention
The problem that there is leakage, corrosion for the purely inorganic fuse salt heat accumulating of prior art and fused salt/Ceramic Composite heat accumulating, the invention provides a kind of integral type energy storing structure, preparation method and purposes.Described integral type energy storing structure is high temperature thermal energy storage material and erosion shield integral type encapsulating structure, and preparation method low cost, technique are simple.
This invention address that its technical problem adopts following technical scheme:
A kind of integral type energy storing structure, described structure includes encapsulating housing, and is encapsulated in the phase-change heat-storage material within described encapsulating housing.
Preferably, encapsulating housing of the present invention is the graphite being dispersed with sodium silicate.
Preferably, in described graphite, the dispersion amount of sodium silicate is 1～10wt%, for instance 1.2wt%, 1.5wt%, 1.8wt%, 2.4wt%, 2.8wt%, 3.5wt%, 4.2wt%, 5.5wt%, 5.7wt%, 6.1wt%, 6.6wt%, 6.8wt%, 7.2wt%, 7.8wt%, 8.4wt%, 8.9wt%, 9.4wt% etc..
Preferably, the modulus of described sodium silicate is 0.9～1.3, for instance 1.0,1.1,1.2 etc..
Preferably, described phase-change heat-storage material is the mixture of binary fuse salt and carrier.
Preferably, described binary fuse salt is any 2 kinds or the combination of more than two kinds in sodium carbonate, lithium carbonate, potassium carbonate, lithium nitrate, sodium nitrate, barium nitrate, lithium nitrate, potassium nitrate；The combination of preferred sodium carbonate and the combination of lithium carbonate, sodium nitrate and potassium nitrate.
Preferably, described carrier is magnesium oxide or silicon dioxide.
Preferably, described phase-change heat-storage material is sodium carbonate, lithium carbonate and magnesian mixture, the mass ratio of preferred described sodium carbonate and lithium carbonate is 4:1～1:1, such as 3.5:1,3.2:1,3.0:1,2.7:1,2.3:1,1.8:1,1.6:1,1.3:1 etc., the quality sum of described sodium carbonate and lithium carbonate and magnesian mass ratio are 1:2～4:1, for instance 3.5:1,3.2:1,3.0:1,2.7:1,2.3:1,1.8:1,1.6:1,1.3:1,1:1.2,1.2:1 etc..
Preferably, the thickness of described encapsulating housing is 0.5～3cm；
Preferably, the diameter of described phase-change heat-storage material or the length of side are 1～20 times of the thickness of described encapsulating housing.
Described phase-change heat-storage material is if cylinder, then its diameter is 1～20 times of encapsulating housing thickness；If phase-change heat-storage material is cuboid, then its length of side is 1～20 times of encapsulating housing thickness.
The preparation method that the two of the purpose of the present invention are to provide a kind of integral type energy storing structure as described in one of purpose, described method comprises the steps:
(1) phase-change heat-storage material of solid-state is prepared；
(2) the encapsulating housing material of solid-state is prepared；
(3) at mold bottom tiling encapsulating housing material, vertically putting into baffle plate at mould inside, described baffle plate distance sidewall has certain distance and the case material composition vessel of described baffle plate and bottom package；
(4) to the internal phase-change heat-storage material adding step (1) of the described vessel of step (3), the encapsulating housing material of step (2) is added to the space between step (3) described vessel and mould side wall；Extract described baffle plate the encapsulating housing material that tiles above phase-changing energy storage material in described mould afterwards out, in order to encapsulate described phase-change heat-storage material；
(5) pressurizeing to mould inside, phase-change heat-storage material and encapsulating housing material are pressed into integral structure by pressurize, obtain molded samples after the demoulding；
(6) molded samples sintering step (5) obtained obtains the integral type energy storing structure described in claim 1.
Preferably, the pressure of step (5) described pressurize is 5～30MPa, for instance 6MPa, 10MPa, 13MPa, 18MPa, 22MPa, 28MPa, 28MPa etc..
Preferably, the described dwell time is 0.5min～10min, for instance 0.6min, 1min, 1.3min, 1.8min, 2.5min, 2.9min, 3.3min, 4.2min, 4.8min, 5.6min, 7.8min, 9.5min etc..
Preferably, step (1) described phase-change heat-storage material is the mixture of binary fuse salt and carrier.
Preferably, described binary fuse salt is any 2 kinds or the combination of more than two kinds in sodium carbonate, lithium carbonate, potassium carbonate, lithium nitrate, sodium nitrate, barium nitrate, lithium nitrate, potassium nitrate；The combination of preferred sodium carbonate and the combination of lithium carbonate, sodium nitrate and potassium nitrate.
Preferably, described carrier is magnesium oxide or silicon dioxide.
Preferably, described phase-change heat-storage material is sodium carbonate, lithium carbonate and magnesian mixture, the mass ratio of preferred described sodium carbonate and lithium carbonate is 4:1～1:1, such as 3.5:1,3.2:1,3.0:1,2.7:1,2.3:1,1.8:1,1.6:1,1.3:1 etc., the quality sum of described sodium carbonate and lithium carbonate and magnesian mass ratio are 1:2～4:1, for instance 3.5:1,3.2:1,3.0:1,2.7:1,2.3:1,1.8:1,1.6:1,1.3:1,1:1.2,1.2:1 etc..
Preferably, the method for the phase-change heat-storage material of described preparation solid-state is mixed grinding, and described process of lapping is solvent-free grinding.
Preferably, the process of the encapsulating housing material of the preparation solid-state described in step (2) is: add sodium silicate solution in graphite.
Preferably, the modulus of described sodium silicate solution is 0.9～1.3, for instance 1.0,1.1,1.2 etc..
Preferably, the amount of the sodium silicate solution added in described graphite is 0.01～0.1g/g graphite, for instance add sodium silicate solution 0.02g, sodium silicate solution 0.03g, sodium silicate solution 0.04g, sodium silicate solution 0.05g, sodium silicate solution 0.06g, sodium silicate solution 0.07g, sodium silicate solution 0.08g or sodium silicate solution 0.09g etc. in every gram of graphite.
Preferably, step (3) described mould is column type or cuboid-type.
Preferably, when mould is column type, distance is column type basal diameter the 0.1～0.3 of described baffle plate distance sidewall；When mould is cuboid-type, distance is corresponding two the sidewall distances of cuboid-type the 0.1～0.3 of described baffle plate distance sidewall.
Preferably, the encapsulating housing material of step (3) described mold bottom tiling and the described thickness tiling encapsulating housing material in described mould above phase-changing energy storage material of step (4) are all each independently 1.1～1.3 times of described baffle plate and sidewall distance.
The three of the purpose of the present invention are to provide the purposes of a kind of integral type energy storing structure as described in one of purpose, and described integral type energy storing structure is used for the large-scale synthesis field abandoning wind-powered electricity generation utilization, high-temperature flue gas recovery, cold-hot-electricity combined system and composite of industrial afterheat recovery, solar energy heat utilization, heat accumulation.
Compared with prior art, there is advantages that
(1) energy storing structure provided by the invention is the integral structure being made up of encapsulating housing and phase-change heat-storage material, both the problem having overcome single heat accumulating heat accumulation weak effect, overcome again fuse salt heat accumulating to be difficult to store, the problem easily revealed, corrode, has given full play to the advantage of composite；And simple in construction, it is ensured that the security reliability of heat reservoir, heat conductivity is good, and thermal conductivity is at more than 4.5W/ (m K)；
(2) preparation method of energy storing structure provided by the invention is phase-change heat-storage material (fuse salt) and encapsulating housing namely directly to be encapsulated through briquetting, obtain integral type energy storing structure, preparation technology is simple, heat accumulating includes heat accumulation, exothermal efficiency etc. and is greatly improved in interior combination property, solves the highly corrosive energy of fuse salt simultaneously.
Accompanying drawing explanation
Fig. 1 gives the perspective structure schematic diagram of the integral type energy storing structure that embodiment 1 prepares；
Fig. 2 gives the cross-sectional view of the integral type energy storing structure that embodiment 1 prepares；
Wherein, 1-encapsulating housing, 2-phase-change heat-storage material.
Detailed description of the invention
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art understand the present invention it will be clearly understood that described embodiment is only help, are not construed as the concrete restriction to the present invention.
Embodiment 1:
(1) take 6 grams of sodium carbonate, 6 grams of lithium carbonate and 18 grams of magnesium oxide mixed grindings and be uniformly configured to 30 grams of inorganic salt/ceramic-base body mixture, weigh 20 grams of this mixture, as phase-change heat-storage material；
(2) take 5 grams, 0.5 gram 0.9 modulus sodium silicate solution of coating material graphite and carry out dispensing, weigh 2g as encapsulating housing material；
(3) taking a cylindrical die diameter is 10cm, high 5cm, by evenly laid out at mold bottom for the encapsulating housing material of 0.5g step (2), place into the baffle plate being smaller in size than mould, described baffle plate distance mould side wall 0.5cm distance, the case material composition vessel of described baffle plate and bottom package；
(4) to the internal phase-change heat-storage material adding 20g step (1) of the described vessel of step (3), to the encapsulating housing material adding 1g step (2) between baffle plate and mould side wall；Extract baffle plate afterwards out, then at mould inside, tile remaining 0.5g encapsulating housing material in the top of phase-changing energy storage material, encapsulates described phase-change heat-storage material；
(5) molding on a hydraulic press, pressure is 6MPa, and dwell time 10min, the demoulding obtains molded samples；
(6) molded samples of step (5) is inserted graphite crucible, be sintered heating under inert atmosphere to 550 DEG C, be down to room temperature after insulation 1h, obtain the corrosion-resistant anti-leak Na of integral type energy storing structure2CO3Li2CO3-MgO/ graphite integral type encapsulation heat accumulating.
The integral type energy storing structure that embodiment 1 prepares has encapsulating housing 1, and is encapsulated in the phase-change heat-storage material 2 within described encapsulating housing 1, and described thickness of shell is 9cm, and phase-change heat-storage material diameter is 4.5cm, high 4cm.
Fig. 1 gives the perspective structure schematic diagram of the integral type energy storing structure that embodiment 1 prepares；
Fig. 2 gives the cross-sectional view of the integral type energy storing structure that embodiment 1 prepares.
Adopt the Na that laser heat conducting instrument (model 427, NETZSCH, Germany) method testing example 1 obtains2CO3Li2CO3The thermal conductivity of-MgO/ graphite integral type encapsulation heat accumulating is 4.5W/ (m K).
Embodiment 2:
(1) take 8 grams of sodium carbonate, 2 grams of lithium carbonate and 10 grams of magnesium oxide mixed grindings and be uniformly configured to 20 grams of inorganic salt/ceramic-base body mixture, weigh 15 grams of this mixture, as phase-change heat-storage material；
(2) take 10 grams, 0.05 gram 1.3 modulus sodium silicate solution of coating material graphite and carry out dispensing, weigh 5g, as encapsulating housing material；
(3) taking a cylindrical die diameter is 20cm, high 10cm, by evenly laid out at mold bottom for the encapsulating housing material of 1.25g step (2), place into the baffle plate being smaller in size than mould, described baffle plate distance mould side wall 1cm distance, the case material composition vessel of described baffle plate and bottom package；
(4) to the internal phase-change heat-storage material adding 15g step (1) of the described vessel of step (3), to the encapsulating housing material adding 2.5g step (2) between baffle plate and mould side wall；Extract baffle plate afterwards out, then at mould inside, tile remaining 1.25g encapsulating housing material in the top of phase-changing energy storage material, encapsulates described phase-change heat-storage material；
(5) molding on a hydraulic press, pressure is 15MPa, and dwell time 2min, the demoulding obtains molded samples；
(6) molded samples of step (5) is inserted graphite crucible, be sintered heating under inert atmosphere to 650 DEG C, be down to room temperature after insulation 30min, obtain the corrosion-resistant anti-leak Na of integral type energy storing structure2CO3Li2CO3-MgO/ graphite integral type encapsulation heat accumulating.
The method of testing identical with embodiment 1, after tested, the Na obtained2CO3Li2CO3The thermal conductivity of-MgO/ graphite integral type encapsulation heat accumulating is 4.7W/ (m K).
Embodiment 3:
(1) take 20 grams of sodium carbonate, 10 grams of sodium carbonate and 7.5 grams of magnesium oxide mixed grindings and be uniformly configured to 37.5 grams of inorganic salt/ceramic-base body mixture, weigh 14 grams of this mixture, as phase-change heat-storage material；
(2) take 10 grams and 0.1 gram 1.1 modulus sodium silicate solution of coating material graphite and carry out dispensing, weigh 5g, as encapsulating housing material；
(3) taking a cylindrical die diameter is 10cm, high 20cm, by evenly laid out at mold bottom for the encapsulating housing material of 0.5g step (2), place into the baffle plate being smaller in size than mould, described baffle plate distance mould side wall 3cm distance, the case material composition vessel of described baffle plate and bottom package；
(4) to the internal phase-change heat-storage material adding 14g step (1) of the described vessel of step (3), to the encapsulating housing material adding 1g step (2) between baffle plate and mould side wall；Extract baffle plate afterwards out, then at mould inside, tile remaining 0.5g encapsulating housing material in the top of phase-changing energy storage material, encapsulates described phase-change heat-storage material；
(5) molding on a hydraulic press, pressure is 30MPa, and dwell time 0.5min, the demoulding obtains molded samples；
(6) molded samples of step (5) is inserted graphite crucible, be sintered heating under inert atmosphere to 600 DEG C, be down to room temperature after insulation 40min, obtain the corrosion-resistant anti-leak Na of integral type energy storing structure2CO3Li2CO3-MgO/ graphite integral type encapsulation heat accumulating.
The method of testing identical with embodiment 1, after tested, the Na obtained2CO3Li2CO3The thermal conductivity of-MgO/ graphite integral type encapsulation heat accumulating is 4.6W/ (m K).
Comparative example 1
(1) take 8 grams of sodium carbonate, 2 grams of lithium carbonate and 10 grams of magnesium oxide mixed grindings and be uniformly configured to 20 grams of inorganic salt/ceramic-base body mixture, weigh 15 grams of this mixture, as phase-change heat-storage material；
(2) taking a cylindrical die diameter is 20cm, high 10cm, adds the phase-change heat-storage material of 15g step (1) in mould, and molding on a hydraulic press, pressure is 15MPa, and dwell time 2min, the demoulding obtains molded samples；
(6) molded samples of step (5) is inserted graphite crucible, be sintered heating under inert atmosphere to 650 DEG C, be down to room temperature after insulation 30min, obtain heat accumulating.
The method of testing identical with embodiment 1, after tested, the thermal conductivity of the heat accumulating obtained is 0.93W/ (m K).
By the Na prepared by embodiment 1, embodiment 2 and embodiment 32CO3Li2CO3-MgO/ graphite integral type encapsulation High-temperature composite phase change heat, compared with heat accumulating prepared by comparative example, Na2CO3Li2CO3-MgO/ graphite guide integral type encapsulation High-temperature composite phase change heat thermal conductivity significantly improves, and namely it has better heat conduction heat accumulation, conductivity of heat, simultaneously the leakage of anti-fuse salt.
Applicant states, the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment, but the invention is not limited in above-mentioned detailed process equipment and technological process, namely do not mean that the present invention has to rely on above-mentioned detailed process equipment and technological process could be implemented.The equivalence of each raw material of product of the present invention, it will be clearly understood that any improvement in the present invention, is replaced and the interpolation of auxiliary element, concrete way choice etc. by person of ordinary skill in the field, all falls within protection scope of the present invention and open scope.
Claims (9)
1. an integral type energy storing structure, it is characterised in that described structure includes encapsulating housing, and is encapsulated in the phase-change heat-storage material within described encapsulating housing.
2. structure as claimed in claim 1, it is characterised in that described encapsulating housing is the graphite being dispersed with sodium silicate；
Preferably, in described graphite, the dispersion amount of sodium silicate is 1～10wt%；
Preferably, the modulus of described sodium silicate is 0.9～1.3；
Preferably, described phase-change heat-storage material is the mixture of binary fuse salt and carrier；
Preferably, described binary fuse salt is any 2 kinds or the combination of more than two kinds in sodium carbonate, lithium carbonate, potassium carbonate, lithium nitrate, sodium nitrate, barium nitrate, lithium nitrate, potassium nitrate；The combination of preferred sodium carbonate and the combination of lithium carbonate, sodium nitrate and potassium nitrate；
Preferably, described carrier is magnesium oxide or silicon dioxide；
Preferably, described phase-change heat-storage material is sodium carbonate, lithium carbonate and magnesian mixture, it is preferable that the mass ratio of described sodium carbonate and lithium carbonate is 4:1～1:1, and the quality sum of described sodium carbonate and lithium carbonate and magnesian mass ratio are 1:2～4:1.
3. structure as claimed in claim 1 or 2, it is characterised in that the thickness of described encapsulating housing is 0.5～3cm；
Preferably, the diameter of described phase-change heat-storage material or the length of side are 1～20 times of the thickness of described encapsulating housing.
4. the preparation method of the integral type energy storing structure as described in one of claims 1 to 3, it is characterised in that described method comprises the steps:
(1) phase-change heat-storage material of solid-state is prepared；
(2) the encapsulating housing material of solid-state is prepared；
(3) at mold bottom tiling encapsulating housing material, vertically putting into baffle plate at mould inside, described baffle plate distance sidewall has certain distance and the case material composition vessel of described baffle plate and bottom package；
(4) to the internal phase-change heat-storage material adding step (1) of the described vessel of step (3), the encapsulating housing material of step (2) is added to the space between step (3) described vessel and mould side wall；Extract described baffle plate the encapsulating housing material that tiles above phase-changing energy storage material in described mould afterwards out, in order to encapsulate described phase-change heat-storage material；
(5) pressurizeing to mould inside, phase-change heat-storage material and encapsulating housing material are pressed into integral structure by pressurize, obtain molded samples after the demoulding；
(6) molded samples sintering step (5) obtained obtains the integral type energy storing structure described in claim 1.
5. method as claimed in claim 4, it is characterised in that the pressure of step (5) described pressurize is 5～30MPa；
Preferably, the described dwell time is 0.5min～10min.
6. the method as described in claim 4 or 5, it is characterised in that step (1) described phase-change heat-storage material is the mixture of binary fuse salt and carrier；
Preferably, described binary fuse salt is any 2 kinds or the combination of more than two kinds in sodium carbonate, lithium carbonate, potassium carbonate, lithium nitrate, sodium nitrate, barium nitrate, lithium nitrate, potassium nitrate；The combination of preferred sodium carbonate and the combination of lithium carbonate, sodium nitrate and potassium nitrate；
Preferably, described carrier is magnesium oxide or silicon dioxide；
Preferably, described phase-change heat-storage material is sodium carbonate, lithium carbonate and magnesian mixture, it is preferable that the mass ratio of described sodium carbonate and lithium carbonate is 4:1～1:1, and the quality sum of described sodium carbonate and lithium carbonate and magnesian mass ratio are 1:2～4:1；
Preferably, the method for the phase-change heat-storage material of described preparation solid-state is mixed grinding, and described process of lapping is solvent-free grinding.
7. the method as described in one of claim 4～6, it is characterised in that the process of the encapsulating housing material of the preparation solid-state described in step (2) is: add sodium silicate solution in graphite；
Preferably, the modulus of described sodium silicate solution is 0.9～1.3；
Preferably, the amount of the sodium silicate solution added in described graphite is 0.01～0.1g/g graphite.
8. the method as described in one of claim 4～7, it is characterised in that step (3) described mould is column type or cuboid-type；
Preferably, when mould is column type, distance is column type basal diameter the 0.1～0.3 of described baffle plate distance sidewall；When mould is cuboid-type, distance is corresponding two the sidewall distances of cuboid-type the 0.1～0.3 of described baffle plate distance sidewall；
Preferably, the encapsulating housing material of step (3) described mold bottom tiling and the described thickness tiling encapsulating housing material in described mould above phase-changing energy storage material of step (4) are all each independently 1.1～1.3 times of described baffle plate and sidewall distance.
9. the purposes of the integral type energy storing structure as described in one of claims 1 to 3, it is characterized in that, described integral type energy storing structure is used for the large-scale synthesis field abandoning wind-powered electricity generation utilization, high-temperature flue gas recovery, cold-hot-electricity combined system and composite of industrial afterheat recovery, solar energy heat utilization, heat accumulation.
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| CN107828384A (en) * | 2017-10-20 | 2018-03-23 | 华北电力大学 | A kind of core shell structure for the anti-fused salt volatilization of high-temperature phase-change heat storage material |
| CN109233751A (en) * | 2018-11-09 | 2019-01-18 | 中国建筑材料科学研究总院有限公司 | A kind of carbon-based composite phase-change energy storage material and preparation method thereof |
| CN109777369A (en) * | 2019-03-22 | 2019-05-21 | 中国科学院过程工程研究所 | A kind of two-part micropackaging thermal energy storage material and preparation method thereof and purposes |
| CN114354469A (en) * | 2021-12-13 | 2022-04-15 | 华能(浙江)能源开发有限公司长兴分公司 | Integrated device and method for testing stability and metal corrosion resistance of high-temperature phase-change material |
| CN116332624A (en) * | 2023-03-28 | 2023-06-27 | 全球能源互联网欧洲研究院 | Composite heat storage material and preparation method thereof |
| CN116814225A (en) * | 2023-08-31 | 2023-09-29 | 北京智慧能源研究院 | High-heat-conductivity composite structure heat storage material applicable to high-cold high-altitude areas and preparation method thereof |
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| CN109777369A (en) * | 2019-03-22 | 2019-05-21 | 中国科学院过程工程研究所 | A kind of two-part micropackaging thermal energy storage material and preparation method thereof and purposes |
| CN109777369B (en) * | 2019-03-22 | 2020-09-08 | 中国科学院过程工程研究所 | Two-section type micro-packaging composite heat storage material and preparation method and application thereof |
| CN114354469A (en) * | 2021-12-13 | 2022-04-15 | 华能(浙江)能源开发有限公司长兴分公司 | Integrated device and method for testing stability and metal corrosion resistance of high-temperature phase-change material |
| CN116332624A (en) * | 2023-03-28 | 2023-06-27 | 全球能源互联网欧洲研究院 | Composite heat storage material and preparation method thereof |
| CN116332624B (en) * | 2023-03-28 | 2024-04-16 | 全球能源互联网欧洲研究院 | Composite heat storage material and preparation method thereof |
| CN116814225A (en) * | 2023-08-31 | 2023-09-29 | 北京智慧能源研究院 | High-heat-conductivity composite structure heat storage material applicable to high-cold high-altitude areas and preparation method thereof |
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