CN114576865B - Heat-storage energy-saving tile - Google Patents

Heat-storage energy-saving tile Download PDF

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Publication number
CN114576865B
CN114576865B CN202210230714.6A CN202210230714A CN114576865B CN 114576865 B CN114576865 B CN 114576865B CN 202210230714 A CN202210230714 A CN 202210230714A CN 114576865 B CN114576865 B CN 114576865B
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heat
heat storage
hot water
tile
water
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CN114576865A (en
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高亚锋
胡刚
李楠
丁勇
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Chongqing University
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Chongqing University
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Priority to CN202310230361.4A priority patent/CN116426252A/en
Publication of CN114576865A publication Critical patent/CN114576865A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
    • F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
    • C—CHEMISTRY; METALLURGY
    • 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
    • C09K5/16—Materials undergoing chemical reactions when used
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/28—Roofing elements comprising two or more layers, e.g. for insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/20—Arrangements for storing heat collected by solar heat collectors using chemical reactions, e.g. thermochemical reactions or isomerisation reactions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/60—Thermal insulation
    • F24S80/65—Thermal insulation characterised by the material
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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

Abstract

The invention discloses a heat storage energy-saving tile which comprises a tile body, wherein the tile body is arc-shaped in the width direction, is rectangular in the projection direction of a horizontal plane, and is internally provided with a hot water cavity. The solar heat collector can convert solar energy into hot water heat for users to utilize, and has better geothermal shielding effect and solar illumination heat utilization efficiency.

Description

Heat-storage energy-saving tile
Technical Field
The invention relates to the technical field of solar energy utilization, in particular to a heat storage energy-saving tile.
Background
The total energy consumption of the whole process of national construction in 2018 is 21.47 hundred million tons of standard coal equivalent, and the proportion of the standard coal equivalent accounts for the total energy consumption of the country and is 46.5%. The total carbon emission amount of the whole process of national construction in 2018 is 49.3 hundred million tons of CO2, and the carbon emission accounts for 51.3 percent of the carbon emission in the whole country. The building energy consumption is about 2/3, and the air conditioner energy consumption accounts for the main proportion of the building energy consumption. The building roof is used as a fifth vertical surface of the building, and the area of the building roof is increased along with the increase of the building area along with the continuous development of urbanization. The area of the building roof in the city accounts for about 25 percent of the total area of the city, and meanwhile, the roof is the strongest and most direct part of the building which receives solar radiation, so that the building roof resources are fully utilized, the proper application of various energy-saving technologies is realized, and the urban energy consumption can be reduced to a certain extent.
Regarding novel energy-saving roofs, there are greening roofs, water storage roofs, ventilating roofs, high-reflection roofs, and the like. These are directed to the entire roofing system. Currently, energy-saving tiles have energy-saving measures such as coating high-reflection heat-insulation paint on the outer surface, arranging a hollow structure, utilizing water storage evaporation and the like. Some tiles are provided with water interlayers, and the technology of utilizing solar hot water is utilized, for example, a solar hot water pipe combined roof tile disclosed in CN201220248178.4 and a solar hot water tile disclosed in CN201010147016.7 can be used for supplying hot water for family life. However, in the technologies, the water interlayer is simply arranged in the tile, and the solar illumination and the water interlayer are utilized for direct heat exchange, so that in areas with strong illumination, a large amount of heat can still permeate the tile to radiate indoors in strong illumination periods in the daytime, the energy consumption of an indoor air conditioner is increased, and the heat shielding effect is poor. Meanwhile, the conventional water storage tile has poor heat storage performance, the solar light peak period in the day is the time when the household water is less, and the water temperature is insufficient at the night in the household water peak period, so that the overall light heat utilization efficiency is low.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a heat storage energy-saving tile which can have better geothermal shielding effect and solar illumination heat utilization efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an energy-conserving tile of heat accumulation, includes the tile body, and the tile body is the arc on the width direction, is the rectangle on the horizontal plane projection direction, has hot water cavity in the tile body, and its characterized in that, tile body from the bottom up has set gradually bearing structure layer, insulation material layer, hot water layer of heat accumulation and superficial layer on thickness direction, and the hot water cavity is located hot water in situ of heat accumulation.
Like this, the supporting structure layer provides the tile intensity basis, and the hot water layer of heat accumulation is used for storing hot water and sunlight to exchange the heat, for the domestic water of family provides hot water, and the heat preservation material layer of setting can cut off the heat effectively and down to indoor transmission, so can play better heat shield effect.
Further, the surface layer includes a waterproof material layer.
In this way, it is possible to better protect against water.
Further, the surface layer also includes a heat absorbing material coating layer on the waterproof material layer.
This allows better absorption of the solar illumination energy.
Furthermore, the support structure layer is made of metal materials.
This can improve the supporting strength even more.
Further, the heat insulation material layer is made of ceramic fiber paper materials. Has better heat preservation and insulation effects.
Furthermore, the edges of two sides of the tile body in the width direction are provided with clamping joints.
Thus, the clamping joint can be used for connecting with tile connecting members which are used for forming a groove part position structure between adjacent tiles of a roof. The integral connection forming of the roof structure is facilitated. In specific implementation, the connecting position can be subjected to waterproof treatment, such as painting waterproof glue or laying waterproof coiled materials.
Further, the upper surface of one end of the tile in the length direction is provided with an overlapping groove, the edge of the upper portion of the other end extends outwards integrally to form an overlapping protrusion, and the overlapping protrusion can be matched with the overlapping groove to form an overlapping joint.
Therefore, the tiles can be conveniently overlapped, installed and laid one by one along the length direction.
Furthermore, tile length direction's one end terminal surface has the water pipe head with hot water chamber intercommunication, and other end terminal surface has the water pipe connector with hot water chamber intercommunication, and water pipe head can be pegged graft with water pipe connector and cooperate.
Like this, make things convenient for the tile along length direction overlap joint installation one by one and lay the in-process, accomplish the whole intercommunication in hot water chamber, during concrete installation, can rely on the sealing washer or apply paint sealed glue etc. mode packing water pipe joint's sealed fixed.
Furthermore, a heat storage module formed by packaging a heat storage material is arranged in the heat storage hot water layer.
Therefore, the heat storage material can store heat when the sun is strong in the daytime and release heat at night, so that heat supply to water in the hot water cavity is continued, and the utilization efficiency of solar heat is improved. The heat storage material can be realized by adopting a phase change heat storage material or a thermochemical adsorption heat storage material.
Furthermore, in the heat storage hot water layer, the hot water cavity is located in the middle of the tile body, at least upper sides of two ends of the width direction of the tile body are respectively provided with a heat storage module, the peripheral area space of the inner side of the heat storage module is communicated with the peripheral area space of the hot water cavity and encapsulates a phase-change fluid material to form a heat pipe structure, the peripheral area space of the inner side of the heat storage module forms an evaporation section of the heat pipe, and the peripheral area space of the hot water cavity forms a condensation section of the heat pipe.
Therefore, at night, the heat storage material in the heat storage module releases heat, so that the phase-change fluid material in the evaporation section is heated and evaporated, becomes gaseous and rises to enter the condensation section for condensation and heat release, and heat is continuously provided for the hot water cavity. The phase-change fluid material is condensed in the condensing section and then flows back to the evaporating section, and the circulation is repeated, so that the heat accumulated by the heat accumulation module can be better utilized to provide hot water for users at night.
Furthermore, liquid absorption cores are arranged on the side walls in the evaporation section and the condensation section of the heat pipe structure.
This facilitates the backflow of the phase change fluid material.
Furthermore, the outer side of each heat storage module is in a plane shape, a plurality of convex bosses are arranged on the inner side of each heat storage module, the heat storage materials are positioned in the bosses, and the adjacent spaces on the outer sides of the bosses form evaporation sections of the heat pipes.
Therefore, the heat exchange area can be increased better, and the heat exchange efficiency between the heat storage module and the evaporation section can be improved more favorably.
Furthermore, the heat storage material is a thermochemical adsorption heat storage material taking a crystal hydrate as a main material.
Therefore, the thermochemical adsorption heat storage materials of the crystalline hydrate type can store and release heat by depending on the thermochemical change of crystal water obtained and lost by the materials, and the heat absorption and release capacity is usually greater than that of the phase change heat storage materials, so that heat can be stored and released better, the heat utilization efficiency is improved, and meanwhile, the reaction process is mild, easy to control and good in stability.
Further, the heat storage material is prepared by mixing about 95 parts of hydrated potassium carbonate, about 5 parts of expanded graphite and about 4 parts of OP-10 (dodecyl phenol polyoxyethylene ether) according to the mass ratio.
Therefore, the main material hydrated potassium carbonate releases and absorbs heat through the obtained and lost crystal water, and has good stability and high heat storage efficiency. The expanded graphite serving as an auxiliary material can utilize the porous characteristic of the expanded graphite, not only can be used as a main material framework to keep the structure of the material stable, but also can be used as a water molecule mass transfer channel, so that the main material can be subjected to a hydration reaction more uniformly and efficiently, and the phenomenon that local potassium carbonate is excessively combined with water to generate deliquescence is avoided. A small amount of OP-10 can form a hydrophilic film on the surface of the expanded graphite, so that the stability of the material structure can be better maintained, the hydrophilic property is utilized to better facilitate the hydration reaction and avoid deliquescence.
Further, when the heat storage material is prepared, the expanded graphite and the potassium carbonate solution are mixed and stirred uniformly, then the OP-10 solution diluted by the ethanol is added to be mixed and stirred uniformly, and then the mixture is heated to evaporate the redundant ethanol and water and is pressed and molded to obtain the blocky heat storage material.
Thus, expanded graphite and a potassium carbonate solution are mixed firstly, which is beneficial to enabling part of potassium carbonate to uniformly enter pores of the expanded graphite, then OP-10 solution is added to generate a hydrophilic film on the surface of the expanded graphite, and part of potassium carbonate is packaged in the pores, wherein the OP-10 solution is diluted by ethanol, hydroxyl in the ethanol, ether bond in octylphenol polyoxyethylene ether and hydrogen bond between ethanol molecule and water molecule are combined to form a composite hydrophilic group, the hydrophilic group has the ability of getting lost water molecule just within the heat absorption and release working temperature range of the heat storage composite material, and the water binding ability of the hydrophilic group is lower than the ability of the potassium carbonate to bind water in the hydration process, so that the hydrophilic film generated by covering the surface of the expanded graphite can be used as a mass transfer channel of the water molecule to better attract the water molecule to enter in the hydration process, and can be prevented from excessively entering the pores of the expanded graphite in the hydration process. Meanwhile, in the heat absorption and dehydration process of the heat storage material, the normal dehydration and heat storage of the material when being heated can not be influenced. Therefore, when the material needs to promote the heat release of the hydration reaction in the application process, the mode of increasing the water vapor pressure can be adopted, so that water molecules can enter the material more quickly, the heat release rate is increased, and the problem of potassium carbonate deliquescence and hardening caused by overlarge water vapor pressure is avoided.
Furthermore, a water permeability diaphragm is further arranged in each boss in the heat storage module, the water permeability diaphragm encapsulates the heat storage material in the boss, the heat storage material is encapsulated in the boss, one end of the heat storage material is close to the inner end (the end far away from the evaporation section), a steam containing cavity is formed in the boss close to the outer end, and the outer top surface of the boss is made of an elastic material.
Like this, the heat accumulation module receives day solar illumination to absorb the heat, and crystallization hydrate loses crystal water, and the hydrone spills over and enters into steam from the heat accumulation material after being heated and holds the intracavity, and high temperature makes the outer top surface elastic material of boss become soft, and the boss outside is outwards bloated, and steam holds the increase of chamber space in order to hold steam and inside heat transfer better. When the night, the temperature reduces, and steam holds the chamber space shrink, and pressure increases for the aqueous vapor can get into heat accumulation material again better and produce hydration reaction, gives out heat heating pipe structure evaporation segment and absorbs. Therefore, the structure is designed aiming at the action of the thermochemical adsorption heat storage material taking the crystalline hydrate as the main material, the heat absorption and release efficiency and the heat transfer efficiency inside the structure can be better matched, and the solar energy utilization efficiency is improved.
Furthermore, the elastic material of the outer top surface of the boss is in a wave-shaped design.
In this way, the elastic action is better exerted.
In conclusion, the solar heat collector can convert solar energy into hot water heat for users to utilize, and has better geothermal shielding effect and solar illumination heat utilization efficiency.
Drawings
Fig. 1 is a cross-sectional view in the width direction of a heat storage and energy saving tile used in the present invention.
Fig. 2 is a schematic structural view of the single heat-storage hot water layer in fig. 1.
Fig. 3 is a plan view of the bosses of the thermal storage module of fig. 2.
Fig. 4 is a schematic view of the internal structure of a single boss of fig. 2.
Fig. 5 is a schematic structural diagram of a plurality of heat storage energy-saving tiles after being spliced.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The implementation mode is as follows: referring to fig. 1-5, a heat storage energy-saving tile, includes the tile body, and the tile body is the arc in the width direction, is the rectangle in the horizontal plane projection direction, has hot water chamber 1 in the tile body, and wherein, the tile body has set gradually bearing structure layer 2, insulation material layer 3, heat storage hot water layer 4 and superficial layer from the bottom up in the thickness direction, and hot water chamber 1 is located the heat storage hot water in situ.
Like this, the supporting structure layer provides the tile intensity basis, and the heat accumulation hot-water layer is used for storing hot water and the sunlight exchange heat, for the domestic water of family provides hot water, and the heat preservation material layer of setting can cut off the heat effectively and down transmit to the indoor, so can play better heat shield effect.
Wherein the surface layer comprises a layer of water-repellent material 5.
In this way, it is possible to better protect against water.
Wherein the surface layer further comprises a heat absorbing material coating 6 on the water repellent material layer 5.
This allows better absorption of the solar illumination energy.
Wherein, the support structure layer 2 is made of metal material.
This can improve the supporting strength even more.
Wherein, the heat preservation material layer 3 is made of ceramic fiber paper material. Has better heat preservation and insulation effects.
Wherein, the two side edges of the tile body in the width direction are provided with clamping joints 7.
Thus, the snap joint can be used to connect tile attachment member 10, tile attachment member 10 being used to form a grooved portion location between adjacent tiles of a roof. The integral connection and forming of the roof structure are facilitated. In specific implementation, the connecting position can be subjected to waterproof treatment, such as painting waterproof glue or laying waterproof coiled materials.
Wherein, tile length direction's one end upper surface is formed with overlap joint recess 8, and the whole outside extension in other end upper portion edge is formed with the overlap joint arch, and the overlap joint arch can form the overlap joint with the cooperation of overlap joint recess 8.
Therefore, the tiles can be conveniently overlapped, installed and laid one by one along the length direction.
Wherein, tile length direction's one end terminal surface has the water pipe head with hot water cavity intercommunication, and other end terminal surface has the water pipe connector 9 with hot water cavity intercommunication, and the water pipe head can be pegged graft the cooperation with the water pipe connector.
Like this, make things convenient for the tile along length direction overlap joint installation one by one and lay the in-process, accomplish the whole intercommunication in hot water chamber, during concrete installation, can rely on the sealing washer or apply paint sealed glue etc. mode packing water pipe joint's sealed fixed.
Wherein, a heat storage module 11 formed by packaging heat storage materials is also arranged in the heat storage hot water layer.
Therefore, the heat storage material can store heat when the sun is strong in the daytime and release heat at night, so that heat supply to water in the hot water cavity is continued, and the utilization efficiency of solar heat is improved. The heat storage material can be realized by adopting a phase change heat storage material or a thermochemical adsorption heat storage material.
In the heat storage hot water layer, the hot water cavity 1 is located in the middle of the tile body, at least upper sides of two ends of the tile body in the width direction are respectively provided with a heat storage module 11, the peripheral area space of the inner side of the heat storage module is communicated with the peripheral area space of the hot water cavity and is packaged with a phase-change fluid material to form a heat pipe structure, the peripheral area space of the inner side of the heat storage module forms an evaporation section 12 of the heat pipe, and the peripheral area space of the hot water cavity forms a condensation section 13 of the heat pipe.
Therefore, at night, the heat storage material in the heat storage module releases heat, so that the phase-change fluid material in the evaporation section is heated and evaporated, becomes gaseous and rises to enter the condensation section for condensation and heat release, and heat is continuously provided for the hot water cavity. The phase-change fluid material is condensed in the condensing section and then flows back to the evaporating section, and the circulation is repeated, so that the heat accumulated by the heat accumulation module can be better utilized to provide hot water for users at night.
When the evaporator is implemented, a layer of heat-insulating material is arranged on the outer side of the evaporation section. Therefore, the illumination time is long in the daytime, and the arrangement of the heat insulation material does not influence the heating of the hot water cavity too much. After the temperature is reduced at night, the heat insulation material can effectively prevent heat exchange inside and outside the tile, and can better insulate the heat of the hot water cavity.
Wherein, the side walls in the evaporation section 12 and the condensation section 13 of the heat pipe structure are both provided with liquid absorption cores.
This facilitates the backflow of the phase change fluid material.
The outer side of each heat storage module is in a plane shape, a plurality of convex bosses 15 are arranged on the inner side of each heat storage module, the heat storage materials are located in the bosses 15, and the adjacent spaces on the outer sides of the bosses 15 form evaporation sections of the heat pipes.
Therefore, the heat exchange area can be increased better, and the heat exchange efficiency between the heat storage module and the evaporation section can be improved more favorably.
The heat storage material is a thermochemical adsorption heat storage material taking a crystalline hydrate as a main material.
Therefore, the thermochemical adsorption heat storage materials of the crystalline hydrate type can store and release heat by depending on the thermochemical change of crystal water obtained and lost by the materials, and the heat absorption and release capacity is usually greater than that of the phase change heat storage materials, so that heat can be stored and released better, the heat utilization efficiency is improved, and meanwhile, the reaction process is mild, easy to control and good in stability.
Wherein the heat storage material is prepared by mixing about 95 parts of hydrated potassium carbonate, about 5 parts of expanded graphite and about 4 parts of OP-10 (dodecyl phenol polyoxyethylene ether) according to the mass ratio.
Therefore, the main material hydrated potassium carbonate releases and absorbs heat through the obtained and lost crystal water, and has good stability and high heat storage efficiency. The expanded graphite serving as an auxiliary material can utilize the porous characteristic of the expanded graphite, not only can be used as a main material framework to keep the structure of the material stable, but also can be used as a water molecule mass transfer channel, so that the main material can be subjected to a hydration reaction more uniformly and efficiently, and the phenomenon that local potassium carbonate is excessively combined with water to generate deliquescence is avoided. A small amount of OP-10 can form a hydrophilic film on the surface of the expanded graphite, so that the stability of the material structure can be better maintained, the hydrophilic property is utilized to better facilitate the hydration reaction and avoid deliquescence.
When the heat storage material is prepared, firstly, the expanded graphite and the potassium carbonate solution are mixed and stirred uniformly, then, the OP-10 solution diluted by the ethanol is added, mixed and stirred uniformly, and then, the mixture is heated to evaporate redundant ethanol and water and then is pressed and molded to obtain the blocky heat storage material.
Thus, expanded graphite and a potassium carbonate solution are mixed firstly, which is beneficial to enabling part of potassium carbonate to uniformly enter pores of the expanded graphite, then OP-10 solution is added to generate a hydrophilic film on the surface of the expanded graphite, and part of potassium carbonate is packaged in the pores, wherein the OP-10 solution is diluted by ethanol, hydroxyl in the ethanol, ether bond in octylphenol polyoxyethylene ether and hydrogen bond between ethanol molecule and water molecule are combined to form a composite hydrophilic group, the hydrophilic group has the ability of getting lost water molecule just within the heat absorption and release working temperature range of the heat storage composite material, and the water binding ability of the hydrophilic group is lower than the ability of the potassium carbonate to bind water in the hydration process, so that the hydrophilic film generated by covering the surface of the expanded graphite can be used as a mass transfer channel of the water molecule to better attract the water molecule to enter in the hydration process, and can be prevented from excessively entering the pores of the expanded graphite in the hydration process. Meanwhile, in the heat absorption and dehydration process of the heat storage material, the normal dehydration and heat storage of the material when being heated can not be influenced. Therefore, when the material needs to promote the hydration reaction to release heat in the application process, a mode of increasing the water vapor pressure can be adopted, so that water molecules can enter the material more quickly, the heat release rate is increased, and the problem of potassium carbonate deliquescence and hardening caused by overhigh water vapor pressure is avoided.
Wherein, still be provided with water permeability diaphragm 16 in each boss 15 in the heat accumulation module, water permeability diaphragm 16 encapsulates the heat accumulation material in the inside one end (keeping away from evaporation zone one end) that leans on of boss to make the boss inside form a steam and hold chamber 17 by outer one end, the outer top surface of boss adopts elastic material to make.
Like this, the heat accumulation module receives day solar illumination to absorb the heat, and crystallization hydrate loses crystal water, and the hydrone spills over and enters into steam from the heat accumulation material after being heated and holds the intracavity, and high temperature makes the outer top surface elastic material of boss become soft, and the boss outside is outwards bloated, and steam holds the increase of chamber space in order to hold steam and inside heat transfer better. When the night, the temperature reduces, and steam holds the chamber space shrink, and pressure increases for the aqueous vapor can get into heat accumulation material again better and produce hydration reaction, gives out heat heating pipe structure evaporation segment and absorbs. Therefore, the structure is designed aiming at the action of the thermochemical adsorption heat storage material taking crystal hydrate as a main material, the heat absorption and release efficiency and the internal heat transfer efficiency can be better matched, and the solar energy utilization efficiency is improved.
Wherein, the outer top surface elastic material of boss is the wave design.
In this way, the elastic action is better exerted.

Claims (9)

1. A heat-storage energy-saving tile comprises a tile body, wherein the tile body is arc-shaped in the width direction, is rectangular in the horizontal plane projection direction, and is internally provided with a hot water cavity;
a heat storage module formed by packaging a heat storage material is also arranged in the heat storage hot water layer;
the heat storage material is a thermochemical adsorption heat storage material taking a crystalline hydrate as a main material;
the heat storage material is prepared by mixing 95 parts of hydrated potassium carbonate, 5 parts of expanded graphite and 4 parts of OP-10 in mass proportion;
when the heat storage material is prepared, firstly, the expanded graphite and the potassium carbonate solution are mixed and stirred uniformly, then the OP-10 solution diluted by ethanol is added for mixing and stirring uniformly, and then the mixture is heated to evaporate redundant ethanol and water and is pressed and molded to obtain a blocky heat storage material; wherein the OP-10 solution is diluted by ethanol, and hydroxide radicals in the ethanol are combined with ether bonds in the octylphenol polyoxyethylene ether and hydrogen bonds between ethanol molecules and water molecules to form a composite hydrophilic group.
2. The heat-storage energy-saving tile according to claim 1, wherein: the surface layer comprises a waterproof material layer;
the surface layer further comprises a coating of heat absorbing material on the layer of water repellent material.
3. The heat storage and energy saving tile according to claim 1, wherein: the support structure layer is made of a metal material;
the heat insulating material layer is made of ceramic fiber paper material.
4. The heat storage and energy saving tile according to claim 1, wherein: the edges of two sides of the tile body in the width direction are provided with clamping joints.
5. The heat storage and energy saving tile according to claim 1, wherein: the upper surface of one end of the tile in the length direction is provided with an overlapping groove, the edge of the upper portion of the other end extends outwards integrally to form an overlapping protrusion, and the overlapping protrusion can be matched with the overlapping groove to form an overlapping.
6. The heat-storage energy-saving tile according to claim 1, wherein: the tile length direction's one end terminal surface has the water pipe head with hot water chamber intercommunication, and other end terminal surface has the water pipe connector with hot water chamber intercommunication, and the water pipe head can be pegged graft with water pipe connector and cooperate.
7. The heat storage and energy saving tile according to claim 1, wherein: in the heat storage hot water layer, the hot water cavity is located tile body middle part position, and the at least upside at tile body width direction's both ends respectively is provided with a slice heat accumulation module, and at heat accumulation module inboard peripheral region space and the peripheral region space intercommunication in hot water cavity and encapsulation phase change fluid material form the heat pipe structure, the peripheral region space in heat accumulation module inboard constitutes the evaporation zone of heat pipe, and the peripheral region space in hot water cavity constitutes the condensation segment of heat pipe.
8. The heat-storing energy-saving tile according to claim 7, wherein: liquid absorption cores are arranged on the side walls in the evaporation section and the condensation section of the heat pipe structure;
the outer side of each heat storage module is in a plane shape, a plurality of convex bosses are arranged on the inner side of each heat storage module, the heat storage materials are positioned in the bosses, and the adjacent spaces on the outer sides of the bosses form evaporation sections of the heat pipes.
9. The heat storage and energy saving tile according to claim 8, wherein: a water permeable diaphragm is further arranged in each boss in the heat module, the heat storage material is packaged by the water permeable diaphragm at one end inside the boss, a steam containing cavity is formed at one end inside and outside the boss, and the top surface outside the boss is made of elastic materials.
CN202210230714.6A 2022-03-10 2022-03-10 Heat-storage energy-saving tile Active CN114576865B (en)

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US4531511A (en) * 1983-07-14 1985-07-30 Hochberg Nelson D Means for controlling heat flux
JP2006010265A (en) * 2004-06-28 2006-01-12 Hiroaki Ikeda Thermal storage system, heating pipe holding member used therein, and construction method for thermal storage system
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