CN109749715A - A kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device - Google Patents

A kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device Download PDF

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Publication number
CN109749715A
CN109749715A CN201910079292.5A CN201910079292A CN109749715A CN 109749715 A CN109749715 A CN 109749715A CN 201910079292 A CN201910079292 A CN 201910079292A CN 109749715 A CN109749715 A CN 109749715A
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heat
storage material
phase
change heat
storage
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杨勇
赵磊
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Shandong Zhineng New Energy Technology Co Ltd
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Shandong Zhineng New Energy Technology Co Ltd
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Priority to CN201910079292.5A priority Critical patent/CN109749715A/en
Publication of CN109749715A publication Critical patent/CN109749715A/en
Priority to CN201910584515.3A priority patent/CN110373160A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-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
    • C09K5/02Materials undergoing a change of physical state when used
    • C09K5/06Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The invention discloses a kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device, belong to energy saver technical field.Movable multifunctional heat-storing device of the present invention, including outer housing, inner housing, the insulating layer being arranged between the outer housing and the inner housing, the multiple spaced composite phase-change heat-storage material thermal storage units being embedded on the inside of the inner housing, the sliding button for being connected to the temperature measuring equipment of the hot phase-change heat-storage material thermal storage unit and being arranged on the outside of the outer housing, the inside of the hot phase-change heat-storage material thermal storage unit and gap setting have heat exchange pipeline.The moveable multifunction storage thermal of the present invention is stored heat to moveable multifunction storage thermal with the heat transfer type of convection current with radiating, it can be carried out efficiently by the way that moveable multifunction storage thermal is moved to user locations for thermal output, and it can be by simply integrated, whole heat storage capacity is improved, the storage transfer of heat dissipation waste heat is further realized and is utilized.

Description

A kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device
Technical field
The present invention relates to phase-change heat-storage materials and energy saver technical field, in particular to a kind of hot phase-change thermal storage Application of the material in movable multifunctional heat-storing device.
Background technique
Power plant, China and boiler heating industry using energy source level are lower, for the heat source of middle low temperature, waste heat Waste is serious.How these industrial low taste waste heats are used to rural area and cities and towns heat, for north city that haze shrouds Speech has very important realistic meaning.In view of low taste waste heat broad categories, heat source form, quantity, time and space Greatly uncertain and unstability is all had, therefore, it is necessary to a kind of technology and equipments for efficiently utilizing low taste waste heat.Its In, hot phase change energy storage technology is a kind of effectively realizes efficiently using the method for low taste waste heat heat dissipation, more than recycling low taste Heat and power peak regulation provides steam and hot water for heating, for user, promotes quality of the life.
Phase change energy storage technology utilizes the thermal storage and energy accumulation function of phase-change material (Phase change materials, PCMs) Energy is managed.Therefore, phase change technique is in industrial afterheat recovery, Solar use, building energy conservation and mass concrete The fields such as hydration heat control are widely used.A kind of Thermal energy storage material of the phase-changing energy storage material as clean and effective, Have many advantages, such as to move peak electricity consumption peak valley, reduce electric load and save electric energy, in hot energy storage, building energy conservation, power peak regulation etc. Aspect has broad application prospects.
Currently, how to solve the problems, such as that the heat accumulation of industrial emissions waste heat is choosing for mobile heat-storage technology large-scale promotion application War in terms of especially realizing stable hot steam and heat, realizes step heat accumulation, improves heat accumulation efficiency, finally realize waste heat With the storage and transfer of waste heat, key is the design of the multifunctional heat storage equipment of packaged type.
Summary of the invention
The purpose of the present invention is to provide a kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device. The heat-storing device has flexible mobility and multi-functional phase-change thermal storage ability, can effectively recycle industrial emissions waste heat, and reach To preferable energy storage effect.
The object of the present invention is achieved like this:
The application of a kind of hot phase-change heat-storage material in movable multifunctional heat-storing device comprising outer housing, inner housing, setting Insulating layer between outer housing and inner housing, the multiple spaced hot phase-change heat-storage materials being embedded on the inside of inner housing store Hot cell, the temperature measuring equipment for being connected to hot phase-change heat-storage material thermal storage unit and the sliding button that outer hull outside is set, heat The inside of phase-change heat-storage material thermal storage unit and gap setting have heat exchange pipeline, and intake-outlet A and disengaging are provided on outer housing Mouth of a river B, intake-outlet A and intake-outlet B run through outer housing, insulating layer and inner housing, and are connected to heat exchange pipeline.
Further, in preferred embodiments of the present invention, heat exchange pipeline is conduction copper heat exchange pipeline, above-mentioned hot phase transformation storage Hot material thermal storage unit is evenly distributed in inner housing.
Further, in preferred embodiments of the present invention, the number of the hot phase-change heat-storage material thermal storage unit is 4 It is a, and be spaced apart from each other setting and form cross gap.
Further, in preferred embodiments of the present invention, the hot phase-change heat-storage material thermal storage unit includes at least one A heat storage being made of composite phase-change heat-storage material;The composite phase-change heat-storage material, as mass fraction, comprising: nothing Machine hydrated salt class phase transformation material 50-80 wt%, porous bacteria cellulose 5-45 wt%, surfactant 5-8 wt%.
Further, in preferred embodiments of the present invention, the composite phase-change heat-storage material is made by following steps:
Step 1) is added deionized water in inorganic hydrous salt phase transition material and is moistened, and then places it in baking oven heating, makes It is uniform to obtain inorganic hydrous salt phase transition material molten, inorganic hydrous salt phase transition marking liquid is made;
Step 2 surfactant is added in the inorganic hydrous salt phase transition marking liquid of step 1), ultrasonic disperse, is formed and is stablized Lotion;
Porous bacteria cellulose is added in stable emulsion made from step 2 step 3), is dispersed with stirring uniformly, mixing is made Object;
Mixture made from step 3) is put into vacuum drying oven by step 4), vacuumize process, and room temperature is constant;Up to compound phase Change heat storage material.
Further, in preferred embodiments of the present invention, the inorganic hydrated salt class phase transformation material is selected from Ba (OH)2·8H2O, Na2SO4·10H2O, CaCl2·10H2O, Na2HPO4·10H2O, Na2CO3·10H2One of O or two kinds More than;
The porous bacteria cellulose has porous structure and Nanofiber Network structure;
The surfactant be selected from OP-10, sodium dodecyl benzene sulfonate, lauryl sodium sulfate, one of CTAB or Two kinds or more.
Further, in preferred embodiments of the present invention, the porous bacteria cellulose is made by following steps: 1) bacteria cellulose is impregnated in deionized water, until be cut into bulk behind pH=7, and after blocky bacteria cellulose is cleaned up It is freeze-dried;2) in N2Under conditions of protection, ramped heating schedule carbon is carried out to the bacteria cellulose after freeze-drying Change, obtains porous bacteria cellulose;
The condition of the ramped heating schedule carbonization are as follows: be warming up to 350 °C with the rate of 1.5 °C/min, 1 h of constant temperature;Again 800 °C are warming up to the rate of 3 °C/min, 2 h of constant temperature;
The aperture of the porous bacteria cellulose is 100-800 nm, and density is 0.3-0.8 g/cm3
Further, in preferred embodiments of the present invention, the shape of the temperature measuring equipment is cubic block.
Further, in preferred embodiments of the present invention, the hot phase-change heat-storage material thermal storage unit, thermocouple and temperature Degree display is sequentially connected.
Further, in preferred embodiments of the present invention, the insulating layer is insulating foam layer.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention applies hot phase-change heat-storage material in movable multifunctional heat-storing device, and device is to radiate the biography with convection current Hot mode stores heat to moveable multifunction storage thermal, by flexibly by moveable multifunction storage thermal User locations are moved to, can be carried out efficiently for thermal output.Moveable multifunction storage thermal can by simply integrated, Whole heat storage capacity is improved, the storage transfer of heat dissipation waste heat is further realized and is utilized.
2) currently preferred composite phase-change heat-storage material has excellent heating conduction and phase-change thermal storage performance, this is compound Phase-change heat-storage material carries out emulsion dispersion to inorganic hydrous salt phase transition material using surfactant, forms stable micella, makes Oleophylic performance is presented in inorganic hydrous salt phase transition material surface, strengthens the effect of itself and porous bacteria cellulose material inner surface Power, by porous bacteria cellulose material adsorb it is stronger with it is close, be less likely to occur to leak in phase transformation, to be rendered as The stable composite shape-setting phase-change heat-storage material of performance.
3) composite phase-change heat-storage material preparation method of the invention is simple, low in cost.Obtained composite phase-change heat-storage Material thermal conductivity is big, and it is preferable that the higher heating conduction of porous bacteria cellulose material assigns composite shape-setting phase-change heat-storage material Thermal conduction characteristic.It is safe and convenient to use, the composite shape-setting phase-change heat-storage material is nontoxic, without erosion, No leakage, there is no combustibility to ask It inscribes and is not required to encapsulate.
Detailed description of the invention
Fig. 1 is the structural scheme of mechanism of the moveable multifunction storage thermal of the embodiment of the present invention 1.
Fig. 2 is the process schematic of the porous bacteria cellulose prepared in the embodiment of the present invention 2.
Fig. 3 is the scanning electron microscopic picture of the porous bacteria cellulose prepared in the embodiment of the present invention 2.
Fig. 4 is that the scanning electron microscope of the porous bacteria cellulose composite phase-change heat-storage material prepared in the embodiment of the present invention 2 is shone Piece.
Fig. 5 is the porous bacteria cellulose composite phase-change heat-storage material XRD diagram prepared in the embodiment of the present invention 2.
Fig. 6 is the thermogravimetric analysis figure of the porous bacteria cellulose composite phase-change heat-storage material prepared in the embodiment of the present invention 2.
Icon: 1- outer housing;2- inner housing;The hot phase-change heat-storage material thermal storage unit of 3-;4- insulating layer;5- temperature measuring equipment; 6- sliding button;8- intake-outlet A;9- intake-outlet B;11- heat exchange pipeline.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of moveable multifunction storage thermals comprising outer housing 1, is protected inner housing 2 4, four hot phase-change heat-storage material thermal storage unit 3 of warm layer, temperature measuring equipment 5 and sliding button 6.Outer housing 1 and inner housing 2 mutually cover If insulating layer 4 is arranged between outer housing 1 and inner housing 2, to prevent the heat losses of moveable multifunction storage thermal. Four hot phase-change heat-storage material thermal storage units 3 are evenly distributed in inner housing 2, and have gap between each other.Temperature measuring equipment 5 with Hot phase-change heat-storage material thermal storage unit 3 connects, for detecting the temperature of hot phase-change heat-storage material thermal storage unit 3.6 setting of sliding button In 1 outside of outer housing, for realizing the slideable movement of moveable multifunction storage thermal.
Outer housing 1 and inner housing 2 are mutually arranged, and outer housing 1 is made of iron material, and inner housing 2 is by stainless steel material structure At when using above-mentioned material as outer housing 1 and inner housing 2, the thermal coefficient of inner housing 2 is greater than outer housing 1, can be as far as possible Heat is stayed in moveable multifunction storage thermal.2 material of inner housing requires the anti-alkali corrosion performance of high temperature.Outside Intake-outlet A8 and intake-outlet B9 are provided on shell 1, intake-outlet A8 and intake-outlet B9 run through outer housing 1, insulating layer 4 With inner housing 2.When entrance of the intake-outlet A8 as water, outlet of the intake-outlet B9 as water.Intake-outlet A8 is as water When outlet, entrance of the intake-outlet B9 as water.Intake-outlet A8 and intake-outlet B9 runs through outer housing 1, insulating layer 4 and inner casing Body 2, and it is connected to heat exchange pipeline 11.
For preventing the insulating layer 4 of the heat losses of moveable multifunction storage thermal to be arranged in outer housing 1 and inner casing Between body 2, and insulating layer 4 is insulating foam layer, and material is the insulating foam of light-weight refractory.Above-mentioned heat preservation bubble Foam material layer good heat preservation performance, light weight.It should be noted that the selection of insulating layer 4 in the present embodiment is insulating foam Layer, in other embodiments, the insulating layer 4 that above-mentioned insulating layer 4 can be other inorganic material or metal material is constituted, only The technical effect of heat preservation is able to achieve all in the protection scope of the present embodiment.
The hot phase-change heat-storage material thermal storage unit 3 being arranged in inner housing 2 is 4.Above-mentioned hot phase-change heat-storage material accumulation of heat Unit 3 is evenly distributed in inner housing 2, and is spaced setting and is formed cross gap, above-mentioned gap heat of neutralization phase-change heat-storage material Thermal storage unit 3 is internally provided with interconnected heat exchange pipeline 11.It should be noted that in the present embodiment, above-mentioned hot phase The number of change heat storage material thermal storage unit 3 is 4, and is spaced apart from each other and to form cross gap.Hot phase in other embodiments The number of change heat storage material thermal storage unit 3 is also possible to other numbers, can also form the gap of other shapes, for example, hot phase The number of change heat storage material thermal storage unit 3 can be 9, and be spaced apart from each other and to form groined type gap, can realize this implementation The technical effect of example storage heat, all in the protection scope of the present embodiment.Above-mentioned heat exchange pipeline 11 is conduction copper heat exchange pipeline 11, hot phase-change heat-storage material thermal storage unit 3 includes the heat storage that at least one is made of composite phase-change heat-storage material, above-mentioned accumulation of heat Body is the core for storing heat.
The shape of temperature measuring equipment 5 is cubic block, is connect with hot phase-change heat-storage material thermal storage unit 3, for detecting hot phase transformation The temperature of heat accumulating thermal storage unit 3.Temperature measuring equipment 5 includes thermocouple and temperature indicator, hot phase-change heat-storage material accumulation of heat list Member 3, thermocouple and temperature indicator are sequentially connected.The temperature of hot phase-change heat-storage material thermal storage unit 3 is transmitted to thermocouple by turning Temperature indicator is transmitted to after change.
The working principle of moveable multifunction storage thermal provided by the invention is: above-mentioned moveable multifunctional heat storage The hot water for carrying heat dissipation waste heat is inducted into heat exchange pipeline 11 by power-equipment by device, and then heat storage is stored up in hot phase transformation Hot material thermal storage unit system, hot water transfer heat to hot phase-change heat-storage material thermal storage unit 3 by heat transfer, undergo phase transition Carry out heat storage.In storage thermal process, heat accumulation exothermic process is observed by the temperature in temperature measuring equipment 5 in real time.Work as temperature When rising to the phase transition temperature of phase-change material, show that heat-storing device full of energy, stops heat exchange at this time.By slideable shifting It is dynamic, moveable multifunction storage thermal is moved into user demand point, is squeezed into cold water via intake-outlet A8 by suction pump In moveable multifunction storage thermal, by the heat exchange of internal pipeline, the heating up process of cold water is realized.In this mistake The heat demand of different echelons may be implemented in Cheng Zhong, the heat accumulating by replacing different-energy density.Temperature in temperature measuring equipment 5 When temperature value in degree display device is reduced to close to heat user demand temperature, then pass through mobile moveable multifunctional heat storage Device to heat source takes thermal potential to set, to be taken thermal process next time.
In conclusion the present invention provides a kind of moveable multifunction storage thermal, above-mentioned apparatus is to radiate and convection current Heat transfer type stores heat to moveable multifunction storage thermal, by flexibly by moveable multifunction storage hot charging It sets and is moved to user locations and can carry out efficiently for thermal output.Moveable multifunction storage thermal can be by simply collecting At the whole heat storage capacity of raising further realizes the storage transfer and utilization of heat dissipation waste heat.
At least one is by composite phase-change heat-storage material included by hot phase-change heat-storage material thermal storage unit 3 in embodiment 1 Expect that the heat storage constituted, the composite phase-change heat-storage material also can choose following examples 2-5 and be made.
Embodiment 2
1) the bacteria cellulose BC steeped in deionized water to pH=7 the preparation of porous bacteria cellulose: is cut into small pieces shape (about 1 × 1cm), blocky BC is cleaned up and is placed on refrigerator freezing, is freeze-dried 24 h.Gained sample is put into tube furnace, N2Under conditions of protection, ramped heating schedule carbonization is warming up to 350 °C of 1 h of constant temperature with the rate of 1.5 °C/min, then with 3 ° The rate of C/min obtains porous bacteria cellulose after being warming up to 800 °C of 2 h of constant temperature.Its preparation process schematic diagram such as Fig. 2 institute Show, the porous bacteria cellulose electron micrograph after high temperature cabonization is as shown in Figure 3.
2) 0.5 gBa (OH) is weighed2·8H2O is put into cup, and a small amount of deionized water (just wet solid of deionized water is added Particle), it is heated 2 hours in 80 DEG C of total case then, makes Ba (OH)2·8H2O is completely melt, is then added 0.08 Surfactant OP -10 g, ultrasonic disperse 30min form stable lotion.0.5g bacteria cellulose is added in lotion, is stirred It mixes and is uniformly dispersed, which is put into vacuum drying oven, is vacuumized, constant 30 min of room temperature completes adsorption process, and taking-up is Obtain composite shape-setting phase-change heat-storage material.The electron scanning micrograph of composite shape-setting phase-change heat-storage material is as shown in Figure 4.It is multiple The XRD of condensation material is as shown in figure 5, diffraction maximum is corresponding with standard barium hydroxide;In addition the weightlessness of composite shape-setting phase-change heat-storage material Rate is 43.04 wt%, as shown in Figure 6.
Embodiment 3
1) the bacteria cellulose BC steeped in deionized water to pH=7 the preparation of porous bacteria cellulose: is cut into small pieces shape (about 1 × 1cm), blocky BC is cleaned up and is placed on refrigerator freezing, is freeze-dried 24 h.Gained sample is put into tube furnace, N2Under conditions of protection, ramped heating schedule carbonization is warming up to 350 °C of 1 h of constant temperature with the rate of 1.5 °C/min, then with 3 °C/rate of min obtains porous bacteria cellulose after being warming up to 800 °C of 2 h of constant temperature.
2) 0.5 g Na is weighed2SO4・10H2O is put into cup, and a small amount of deionized water (just wet solid of deionized water is added Particle), it is heated 2 hours in 80 °C of total casees then, makes Na2SO4・10H2O is completely melt, 0.08 g is then added Surfactant OP -10,30 min of ultrasonic disperse, forms stable lotion.Lotion is added in 0. 5g porous bacteria cellulose In, it being dispersed with stirring uniformly, which is put into vacuum drying oven, is vacuumized, constant 30 min of room temperature completes adsorption process, It takes out and obtains composite shape-setting phase-change heat-storage material.
Embodiment 4
1) the bacteria cellulose BC steeped in deionized water to pH=7 the preparation of porous bacteria cellulose: is cut into small pieces shape (about 1 × 1cm), blocky BC is cleaned up and is placed on refrigerator freezing, is then freeze-dried 24 h.Gained sample is put into tube furnace In, in N2Under conditions of protection, ramped heating schedule carbonization is warming up to 350 °C of 1 h of constant temperature with the rate of 1.5 °C/min, Porous bacteria cellulose is obtained after being warming up to 800 °C of 2 h of constant temperature again with the rate of 3 °C/min.
2) 0.5 g CaCl is weighed2・10H2O is put into cup, and a small amount of deionized water (just wet solid of deionized water is added Particle), it is heated 2 hours in 80 DEG C of total case then, makes CaCl2・10H2O is completely melt, 0.08 g is then added Surfactant sodium dodecyl base phenyl-hydrogen-sulfate sodium, 30 min of ultrasonic disperse form stable lotion.By 0.5g porous bacteria cellulose It is added in lotion, is dispersed with stirring uniformly, which is put into vacuum drying oven, is vacuumized, constant 30 min of room temperature completes to inhale Attached process is taken out and obtains composite shape-setting phase-change heat-storage material.
Embodiment 5
1) the bacteria cellulose BC steeped in deionized water to pH=7 the preparation of porous bacteria cellulose: is cut into small pieces shape (about 1 × 1cm), blocky BC is cleaned up and is placed on refrigerator freezing, is freeze-dried 24 h.Gained sample is put into tube furnace, N2Under conditions of protection, ramped heating schedule carbonization is warming up to 350 °C of 1 h of constant temperature with the rate of 1.5 °C/min, then with 3 °C/rate of min obtains porous bacteria cellulose after being warming up to 800 °C of 2 h of constant temperature.
2) 0.5 g Na is weighed2HPO4・10H2O is put into cup, and a small amount of deionized water is added, and (deionized water is just wet solid Body particle), it is heated 2 hours in 80 °C of total casees then, makes Na2HPO4・10H2O is completely melt, is then added 0.08 g Surfactant SDS, 30 min of ultrasonic disperse, forms stable lotion.By 0.5 g porous bacteria Cellulose is added in lotion, is dispersed with stirring uniformly, which is put into vacuum drying oven, is vacuumized, constant 30 min of room temperature, Adsorption process is completed, takes out and obtains composite shape-setting phase-change heat-storage material.
Embodiment 6
1) the bacteria cellulose BC steeped in deionized water to pH=7 the preparation of porous bacteria cellulose: is cut into small pieces shape (about 1 × 1cm), blocky BC is cleaned up and is placed on refrigerator freezing, is freeze-dried 24 h.Gained sample is put into tube furnace, N2Under conditions of protection, ramped heating schedule carbonization is warming up to 350 °C of 1 h of constant temperature with the rate of 1.5 °C/min, then with 3 °C/rate of min obtains porous bacteria cellulose after being warming up to 800 °C of 2 h of constant temperature.
2) 0.5 g Na is weighed2CO3・10H2O is put into cup, and a small amount of deionized water (just wet solid of deionized water is added Particle), it is heated 2 hours in 80 DEG C of total case then, makes Na2CO3・10H2O is completely melt, is then added 0.07 G Surfactant CTAB, ultrasonic disperse 30min form stable lotion.Lotion is added in 0.5 g porous bacteria cellulose In, it being dispersed with stirring uniformly, which is put into vacuum drying oven, is vacuumized, constant 30 min of room temperature completes adsorption process, It takes out and obtains composite shape-setting phase-change heat-storage material.

Claims (10)

1. a kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device, it is characterised in that: described removable Multifunction storage thermal, including outer housing, inner housing, the insulating layer being arranged between the outer housing and the inner housing, edge Multiple spaced composite phase-change heat-storage material thermal storage units on the inside of the inner housing are connected to the hot phase transformation storage The temperature measuring equipment of hot material thermal storage unit and the sliding button being arranged on the outside of the outer housing, the hot phase-change heat-storage material store The inside of hot cell and gap setting have heat exchange pipeline, and intake-outlet A and intake-outlet B is provided on the outer housing, described The intake-outlet A and intake-outlet B runs through the outer housing, the insulating layer and the inner housing, and is connected to described change Heat pipeline.
2. a kind of application of the hot phase-change heat-storage material according to claim 1 in movable multifunctional heat-storing device, Be characterized in that: the heat exchange pipeline is conduction copper heat exchange pipeline;The composite phase-change heat-storage material thermal storage unit is evenly distributed on In the inner housing.
3. a kind of application of the hot phase-change heat-storage material according to claim 2 in movable multifunctional heat-storing device, Be characterized in that: the number of the hot phase-change heat-storage material thermal storage unit is 4, and is spaced apart from each other setting and forms cross gap.
4. a kind of application of the hot phase-change heat-storage material according to claim 3 in movable multifunctional heat-storing device, Be characterized in that: the hot phase-change heat-storage material thermal storage unit includes the accumulation of heat that at least one is made of composite phase-change heat-storage material Body;The composite phase-change heat-storage material, as mass fraction, comprising: inorganic hydrated salt class phase transformation material 50-80 wt% is more Hole bacteria cellulose 5-45 wt%, surfactant 5-8 wt%.
5. a kind of application of the hot phase-change heat-storage material according to claim 4 in movable multifunctional heat-storing device, Be characterized in that: the composite phase-change heat-storage material is made by following steps:
Step 1) is added deionized water in inorganic hydrous salt phase transition material and is moistened, and then places it in baking oven heating, makes It is uniform to obtain inorganic hydrous salt phase transition material molten, inorganic hydrous salt phase transition marking liquid is made;
Step 2 surfactant is added in the inorganic hydrous salt phase transition marking liquid of step 1), ultrasonic disperse, is formed and is stablized Lotion;
Porous bacteria cellulose is added in stable emulsion made from step 2 step 3), is dispersed with stirring uniformly, mixing is made Object;
Mixture made from step 3) is put into vacuum drying oven by step 4), vacuumize process, and room temperature is constant;Up to compound phase Change heat storage material.
6. a kind of application of the hot phase-change heat-storage material according to claim 5 in movable multifunctional heat-storing device, Be characterized in that: the inorganic hydrated salt class phase transformation material is selected from Ba (OH)2·8H2O, Na2SO4·10H2O, CaCl2· 10H2O, Na2HPO4·10H2O, Na2CO3·10H2One of O or two kinds or more;
The porous bacteria cellulose has porous structure and Nanofiber Network structure;
The surfactant be selected from OP-10, sodium dodecyl benzene sulfonate, lauryl sodium sulfate, one of CTAB or Two kinds or more.
7. a kind of application of the hot phase-change heat-storage material according to claim 6 in movable multifunctional heat-storing device, Be characterized in that: the porous bacteria cellulose is made by following steps: 1) bacteria cellulose is impregnated in deionized water, To pH=7, it is cut into bulk, and be freeze-dried after blocky bacteria cellulose is cleaned up;2) in N2The condition of protection Under, ramped heating schedule carbonization is carried out to the bacteria cellulose after freeze-drying, obtains porous bacteria cellulose;
The condition of the ramped heating schedule carbonization are as follows: be warming up to 350 °C with the rate of 1.5 °C/min, 1 h of constant temperature;Again 800 °C are warming up to the rate of 3 °C/min, 2 h of constant temperature;
The aperture of the porous bacteria cellulose is 100-800 nm, and density is 0.3-0.8 g/cm3
8. a kind of application of the hot phase-change heat-storage material according to claim 1 in movable multifunctional heat-storing device, Be characterized in that: the shape of the temperature measuring equipment is cubic block.
9. a kind of application of the hot phase-change heat-storage material according to claim 8 in movable multifunctional heat-storing device, Be characterized in that: the temperature measuring equipment includes thermocouple and temperature indicator, the hot phase-change heat-storage material thermal storage unit, the heat Galvanic couple and the temperature indicator are sequentially connected.
10. a kind of application of the hot phase-change heat-storage material according to claim 1 in movable multifunctional heat-storing device, Be characterized in that: the insulating layer is insulating foam layer.
CN201910079292.5A 2019-01-28 2019-01-28 A kind of application of hot phase-change heat-storage material in movable multifunctional heat-storing device Pending CN109749715A (en)

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