Water and heat storage energy-saving tile

Abstract

The present invention discloses a water-storage, heat-storage, and energy-saving tile. The tile comprises a main body, which is arc-shaped in width and rectangular in horizontal projection. The main body is characterized by being provided with a supporting structure layer, a water interlayer, and a permeable layer, sequentially arranged from bottom to top in thickness. The permeable layer is made of a water-permeable porous material, and the bottom of the permeable layer is connected to the water interlayer. The present invention can simultaneously utilize rainwater and solar energy resources, achieving better water and energy conservation effects. It is particularly suitable for use in mountainous areas with strong summer sunshine and frequent short rains.

Description

[0001] This application is a divisional application of the patent "A method for saving water and energy using roofs" with application number 202210292134.X and application date 2022-03-24. Technical Field

[0002] The present invention relates to the technical field of solar energy utilization, and in particular to a water-storage and heat-storage energy-saving tile. Background Art

[0003] In recent years, the issue of global warming has gradually attracted the attention of the international community.

[0004] In response to climate change, the roof is an indispensable part of the building and receives strong solar radiation. Therefore, energy conservation and emission reduction of the building from the perspective of the roof can greatly reduce the energy consumption of the building.

[0005] Regarding new energy-saving roofing technologies, green roofs, water-storage roofs, ventilated roofs, and highly reflective roofs are currently available. These technologies target the entire roofing system. Current energy-saving tiles include coating the exterior with highly reflective, heat-insulating coatings, creating hollow structures, and utilizing evaporation from stored water, among other energy-saving measures. Some technologies also incorporate a water layer within the tiles to utilize solar hot water. For example, CN201220248178.4 discloses a solar hot water pipe combined with roofing tiles, and CN201010147016.7 discloses solar hot water tiles, which can provide hot water for household use. However, these technologies simply incorporate a water layer within the tiles, utilizing direct heat exchange between sunlight and the water layer. Therefore, in areas with strong sunlight, a significant amount of heat will still radiate into the house during periods of intense daylight, increasing air conditioning energy consumption and resulting in poor heat shielding. At the same time, the heat storage performance of this conventional water-storage tile is poor. The peak period of sunlight during the day is when households use less water, and the water temperature is not high during the peak period of household water use at night, so the overall light heat utilization efficiency is low.

[0006] In addition, existing solar energy utilization technologies based on roof tiles mostly simply use solar energy to heat tap water, and cannot effectively utilize rainwater resources. Therefore, how to design a solution that can better utilize solar energy and rainwater resources is a problem that has not yet been considered and solved by people in this field. Summary of the Invention

[0007] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is: how to provide a roof water-saving and energy-saving method that can simultaneously utilize rainwater and solar energy resources and has better energy-saving effects, as well as a water-storage and heat-storage energy-saving tile.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A method for saving water and energy on a rooftop is provided, in which a water layer is set in the rooftop building, and water in the water layer is heated by sunlight to obtain hot water for use. The method is characterized in that the water in the water layer comes from rainwater collected and filtered by the rooftop building.

[0010] In this way, the present invention can absorb solar heat to produce hot water for utilization, and at the same time can collect rainwater as a water source for absorbing solar heat, thus utilizing solar energy and rainwater at the same time and having a better energy-saving and water-saving effect.

[0011] Furthermore, excess solar heat is stored by heat storage materials during the day, and the heat is released at night to heat the water in the water layer for use.

[0012] In this way, the efficiency of utilizing solar heat can be improved by storing and releasing heat through the heat storage material. The heat storage material can be implemented by using a phase change heat storage material or a thermochemical adsorption heat storage material.

[0013] Furthermore, the present method is implemented by laying water-storage, heat-storage and energy-saving tiles on the roof. The water-storage, heat-storage and energy-saving tiles include a tile body, which is arc-shaped in the width direction and rectangular in the horizontal plane projection direction. The tile body is provided with a supporting structure layer, a water interlayer and a permeable layer in sequence from bottom to top in the thickness direction. The permeable layer is made of a water-permeable porous material, and the bottom of the permeable layer is connected to the water interlayer.

[0014] The supporting structure at the bottom provides the tile's strength, while the permeable layer on the surface allows rainwater to seep down and into the water layer. The water stored in the water layer absorbs heat from the sun during the day, providing hot water for households. This tile utilizes both solar energy and rainwater, improving energy and water conservation.

[0015] Furthermore, a thermal insulation material layer is provided between the supporting structure layer and the water interlayer.

[0016] In this way, the provided insulation material layer can effectively prevent heat from being transferred downward into the house, thereby achieving a better insulation effect on the water interlayer and heat shielding effect on the house.

[0017] Furthermore, the thermal insulation material layer is made of ceramic fiber paper material, which has better thermal insulation effect and prevents heat from entering the room.

[0018] Furthermore, the water-permeable layer is made of porous silver-loaded glass.

[0019] The porous silver-loaded glass used to create a permeable layer has a strong bactericidal effect, killing most bacteria in the water and effectively cleaning and filtering the water. Furthermore, the material has a high heat transfer capacity, which is better suited for absorbing solar heat. Furthermore, the pore size can be better controlled during fabrication, reducing capillary action and increasing water permeability.

[0020] Furthermore, a water-absorbing layer made of water-absorbing material is provided on the upper surface of the water-permeable layer.

[0021] In this way, when it rains and in the early morning, the water absorbing layer can better absorb rainwater and dew, and then penetrate and filter through the permeable layer and enter the water interlayer, thereby better improving the absorption and utilization efficiency of natural water (rainwater and dew).

[0022] Furthermore, a plurality of arc-shaped protrusions are arranged on the upper surface of the water-absorbing layer.

[0023] In this way, the water absorption area can be better increased, dew can be better absorbed for utilization in the early morning, and solar heat can be better absorbed for utilization when the sun is directly shining during the day.

[0024] Furthermore, the water absorbing layer is made of silica gel material.

[0025] Silica gel is a highly active adsorption material with an open, porous structure and strong adsorption. Silica gel, primarily composed of silicon dioxide, is chemically stable and non-flammable. During production, the pore size of silica gel can be easily controlled through material ratios and process steps, allowing for excellent water permeability while simultaneously shielding larger particles like dust from entering, resulting in enhanced penetration and filtration. Furthermore, silica gel has excellent thermal conductivity, further facilitating the absorption and utilization of solar energy.

[0026] Furthermore, the upper surface of the tile body is black.

[0027] In this way, solar energy can be better absorbed during the day to heat the water layer.

[0028] Furthermore, a heat storage module is arranged between the water permeable layer and the water interlayer, and heat storage material is encapsulated in the heat storage module. Channels are left at the lowest positions on both sides of the heat storage module for communication between the water permeable layer and the water interlayer.

[0029] In this way, the thermal storage material can store heat during the day when the sun is strong and release heat at night, continuously heating the water in the water layer and improving the efficiency of solar heat utilization. The thermal storage material can be implemented using phase change thermal storage material or thermochemical adsorption thermal storage material.

[0030] Furthermore, the lower surface of the heat storage module constitutes an inner cavity surface of the water interlayer, and a plurality of outwardly protruding bosses are provided on one side of the lower surface of the heat storage module.

[0031] In this way, the heat exchange area between the heat storage module and the water interlayer can be better increased, which is more conducive to improving the heat exchange efficiency between the heat storage module and the water in the water interlayer.

[0032] Furthermore, the heat storage material is a thermochemical adsorption heat storage material with crystalline hydrate as a main material.

[0033] In this way, the thermochemical adsorption heat storage material of the crystalline hydrate type relies on the thermochemical changes of the material gaining and losing crystalline water to store and release heat. Usually, the heat absorption and release capacity is greater than that of the phase change heat storage material, which can better store and release heat and improve heat utilization efficiency. At the same time, its reaction process is mild, easy to control, and has good stability.

[0034] Furthermore, the heat storage material is prepared by mixing about 95 parts by mass of hydrated potassium carbonate, about 5 parts by mass of expanded graphite, and about 4 parts by mass of OP-10 (dodecylphenol polyoxyethylene ether).

[0035] In this way, the main ingredient, hydrated potassium carbonate, releases and absorbs heat through the gain and loss of crystal water, resulting in excellent stability and high heat storage efficiency. Expanded graphite, as an auxiliary ingredient, leverages its porous properties, not only serving as a framework for the main ingredient to maintain structural stability but also as a mass transfer channel for water molecules, allowing for more uniform and efficient hydration of the main ingredient and preventing localized deliquescence caused by excess potassium carbonate water. A small amount of OP-10 creates a hydrophilic film on the surface of the expanded graphite, further maintaining structural stability and leveraging its hydrophilic properties to facilitate hydration and prevent deliquescence.

[0036] Furthermore, when preparing the thermal storage material, the expanded graphite and potassium carbonate solution are first mixed and stirred evenly, and then the OP-10 solution diluted with ethanol is added and mixed and stirred evenly, and then heated to evaporate excess ethanol and water and then pressed into shape to obtain a block of thermal storage material.

[0037] In this way, the expanded graphite and potassium carbonate solution are first mixed, which facilitates the uniform entry of some potassium carbonate into the pores of the expanded graphite. The OP-10 solution is then added to form a hydrophilic film on the surface of the expanded graphite, encapsulating some of the potassium carbonate components within the pores. The OP-10 solution is diluted with ethanol, and the hydroxide radicals in the ethanol combine with the ether bonds in the octylphenol polyoxyethylene ether, as well as the hydrogen bonds between the ethanol molecules and the water molecules, to form a composite hydrophilic group. This hydrophilic group has the ability to gain and lose water molecules within the heat storage composite material's operating temperature range, and its water-binding capacity is lower than that of potassium carbonate during the hydration process. Therefore, the hydrophilic film formed on the surface of the expanded graphite can better serve as a mass transfer channel for water molecules during the hydration reaction, attracting them and preventing excessive water vapor from entering the pores of the expanded graphite during the hydration reaction. Simultaneously, during the heat storage material's heat absorption and dehydration process, it does not affect the material's normal dehydration and heat storage when heated. Therefore, when the material needs to promote the release of heat in the hydration reaction during application, the water vapor pressure can be increased to allow water molecules to enter the material faster and increase the heat release rate without worrying about the problem of potassium carbonate deliquescence and hardening due to excessive water vapor pressure.

[0038] Furthermore, a permeable diaphragm is provided in each boss in the heat storage module, which encapsulates the heat storage material at the upper end of the boss and forms a crystallization water accommodating cavity at the lower end of the boss. The outer bottom surface of the boss is made of elastic material.

[0039] In this way, when the tiles are exposed to sunlight during the day, the heat is transferred inward to the thermal storage module for absorption, the crystalline hydrate loses its crystalline water, and the water molecules overflow from the thermal storage material after being heated and enter the crystalline water holding cavity. The high temperature softens the elastic material on the outer top surface of the boss, and the outer side of the boss bulges outward, and the space of the crystalline water holding cavity increases to better accommodate the crystalline water and transfer heat inward. At night, the temperature drops, the space of the crystalline water holding cavity shrinks, and the pressure increases, so that the crystalline water in the crystalline water holding cavity can better re-enter the thermal storage material to produce a hydration reaction, releasing heat for absorption by the external water interlayer. Therefore, this structure is designed for the action of thermochemical adsorption thermal storage materials with crystalline hydrate as the main material, which can better cooperate to improve its heat absorption and release efficiency and internal heat transfer efficiency, thereby improving the efficiency of solar energy utilization.

[0040] Furthermore, the elastic material of the outer bottom surface of the boss is designed to be wavy.

[0041] In this way, its elastic effect can be better exerted.

[0042] Furthermore, the lowest point of the permeable layer is equal to or higher than the highest point of the water interlayer.

[0043] In this way, it is more conducive for the water in the permeable layer to penetrate downward under the action of gravity and flow into the water interlayer.

[0044] Furthermore, a waterproof coating is provided on the side of the tile body.

[0045] This will better prevent moisture from flowing out of the tiles from both sides of the permeable layer.

[0046] Furthermore, card joints are provided on both side edges in the width direction of the tile body.

[0047] In this way, the snap-in connector can be connected to the tile connecting member, which is used to form the groove portion between adjacent roof tiles. This facilitates the overall connection and formation of the roof structure. In practice, the connection location can be waterproofed, such as by applying waterproof glue or laying waterproof membrane.

[0048] Furthermore, an overlapping groove is formed on the upper surface of one end of the tile in the length direction, and an overlapping protrusion is formed by extending the upper edge of the other end outward as a whole. The overlapping protrusion can cooperate with the overlapping groove to form an overlap.

[0049] In this way, it is convenient to install and lay the tiles one by one along the length direction.

[0050] Furthermore, one end face of the tile in the length direction has a water pipe joint connected to the water interlayer, and the other end face has a water pipe interface connected to the water interlayer, and the water pipe joint can be plugged into and matched with the water pipe interface.

[0051] In this way, it is convenient to overlap and install the tiles one by one along the length direction, so as to complete the overall connection of the water interlayer. During the specific installation, the water pipe joint can be sealed and fixed by means of sealing rings or applying sealant. During implementation, the water pipe joint at the starting position can be connected to the tap water pipe. When there is insufficient rainwater, it can be connected to the tap water supply.

[0052] In summary, the present invention can utilize rainwater and solar energy resources at the same time, has better water-saving and energy-saving effects, and is particularly suitable for use in mountainous areas with strong sunshine and frequent short rains in summer. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a cross-sectional view of the water-storage, heat-storage, energy-saving tile used in the present invention in the width direction.

[0054] Figure 2 for Figure 1 Schematic diagram of the internal structure of a single boss.

[0055] Figure 3 Schematic diagram of two tiles spliced ​​together.

[0056] Figure 4 for Figure 3 Schematic diagram of the tile connection component.

[0057] Figure 5 Schematic diagram of tile laying. DETAILED DESCRIPTION

[0058] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] Implementation method: A method for saving water and energy on a roof, wherein a water layer is set in the roof building, and the water in the water layer is heated by sunlight to obtain hot water for use, wherein the water in the water layer comes from rainwater collected and filtered by the roof building.

[0060] In this way, the present invention can absorb solar heat to produce hot water for utilization, and at the same time can collect rainwater as a water source for absorbing solar heat, thus utilizing solar energy and rainwater at the same time and having a better energy-saving and water-saving effect.

[0061] In this embodiment, the above method is achieved by laying water-storage heat-storage energy-saving tiles on the roof. Figure 1-5 , including a tile body 1, the tile body 1 is arc-shaped in the width direction and rectangular in the horizontal plane projection direction, and the tile body 1 is provided with a supporting structure layer 2, a water interlayer 3 and a permeable layer 4 in sequence from bottom to top in the thickness direction. The permeable layer 4 is made of a water-permeable porous material, and the bottom of the permeable layer 4 is connected to the water interlayer 3.

[0062] The supporting structure at the bottom provides the tile's strength, while the permeable layer on the surface allows rainwater to seep down and into the water layer. The water stored in the water layer absorbs heat from the sun during the day, providing hot water for households. This tile utilizes both solar energy and rainwater, improving energy and water conservation.

[0063] A thermal insulation material layer 5 is further provided between the supporting structure layer 2 and the water interlayer 3 .

[0064] In this way, the provided insulation material layer can effectively prevent heat from being transferred downward into the house, thereby achieving a better insulation effect on the water interlayer and heat shielding effect on the house.

[0065] The thermal insulation material layer 5 is made of ceramic fiber paper material, which has better thermal insulation effect and prevents heat from entering the room.

[0066] The water-permeable layer 4 is made of porous silver-loaded glass.

[0067] The porous silver-loaded glass used to create a permeable layer has a strong bactericidal effect, killing most bacteria in the water and effectively cleaning and filtering the water. Furthermore, the material has a high heat transfer capacity, which is beneficial for absorbing solar heat. Furthermore, the pore size can be better controlled during fabrication, reducing the capillary effect (preventing water from evaporating upwards through capillary action) and improving downward permeability.

[0068] The upper surface of the water-permeable layer 4 is further provided with a water-absorbing layer 6 made of a water-absorbing material.

[0069] In this way, when it rains and in the early morning, the water absorbing layer can better absorb rainwater and dew, and then penetrate and filter through the permeable layer and enter the water interlayer, thereby better improving the absorption and utilization efficiency of natural water (rainwater and dew).

[0070] A plurality of arc-shaped protrusions 7 are arranged on the upper surface of the water-absorbing layer 6 .

[0071] In this way, the water absorption area can be better increased, dew can be better absorbed for utilization in the early morning, and solar heat can be better absorbed for utilization when the sun is directly shining during the day.

[0072] Wherein, the water absorbing layer 6 is made of silica gel material.

[0073] Silica gel is a highly active adsorption material with an open, porous structure and strong adsorption. Silica gel, primarily composed of silicon dioxide, is chemically stable and non-flammable. During production, the pore size of silica gel can be easily controlled through material ratios and process steps, allowing for excellent water permeability while simultaneously shielding larger particles like dust from entering, resulting in enhanced penetration and filtration. Furthermore, silica gel has excellent thermal conductivity, further facilitating the absorption and utilization of solar energy.

[0074] The upper surface of the tile body 1 is black.

[0075] In this way, solar energy can be better absorbed during the day to heat the water layer.

[0076] Among them, a heat storage module 8 is also arranged between the permeable layer 4 and the water interlayer 3. The heat storage module 8 is encapsulated with heat storage material. Channels 9 are left at the lowest positions on both sides of the heat storage module 8 for communication between the permeable layer and the water interlayer.

[0077] In this way, the thermal storage material can store heat during strong daytime sunlight and release it at night, continuously heating the water in the water layer and improving the efficiency of solar heat utilization. The thermal storage material can be implemented using phase change thermal storage materials or thermochemical adsorption thermal storage materials. Furthermore, during implementation, a memory alloy valve disc can be further provided within channel 9. One end of the memory alloy valve disc is fixed to one side of the channel, while the other end can expand or bend with temperature changes, forming an automatic temperature control switch. When the temperature exceeds a threshold (in direct sunlight during the day), the memory alloy valve disc automatically expands and closes the channel, reducing evaporation. When the temperature falls below the threshold (in rainy days or at night), the memory alloy valve disc bends and opens the channel, allowing collected rainwater and dew to enter the water layer. The threshold value can be within the range of 20-30°C, which can prevent evaporation of water in the water layer at high temperatures.

[0078] The lower surface of the heat storage module 8 constitutes the inner cavity surface of the water interlayer 3 , and one side of the lower surface of the heat storage module 8 is further provided with a plurality of outwardly protruding bosses 10 .

[0079] In this way, the heat exchange area between the heat storage module and the water interlayer can be better increased, which is more conducive to improving the heat exchange efficiency between the heat storage module and the water in the water interlayer.

[0080] The heat storage material is a thermochemical adsorption heat storage material with crystalline hydrate as the main material.

[0081] In this way, the thermochemical adsorption heat storage material of the crystalline hydrate type relies on the thermochemical changes of the material gaining and losing crystalline water to store and release heat. Usually, the heat absorption and release capacity is greater than that of the phase change heat storage material, which can better store and release heat and improve heat utilization efficiency. At the same time, its reaction process is mild, easy to control, and has good stability.

[0082] The heat storage material is prepared by mixing about 95 parts by mass of hydrated potassium carbonate, about 5 parts by mass of expanded graphite, and about 4 parts by mass of OP-10 (dodecylphenol polyoxyethylene ether).

[0083] In this way, the main ingredient, hydrated potassium carbonate, releases and absorbs heat through the gain and loss of crystal water, resulting in excellent stability and high heat storage efficiency. Expanded graphite, as an auxiliary ingredient, leverages its porous properties, not only serving as a framework for the main ingredient to maintain structural stability but also as a mass transfer channel for water molecules, allowing for more uniform and efficient hydration of the main ingredient and preventing localized deliquescence caused by excess potassium carbonate water. A small amount of OP-10 creates a hydrophilic film on the surface of the expanded graphite, further maintaining structural stability and leveraging its hydrophilic properties to facilitate hydration and prevent deliquescence.

[0084] Among them, when preparing the thermal storage material, the expanded graphite and potassium carbonate solution are first mixed and stirred evenly, and then the OP-10 solution diluted with ethanol is added and mixed and stirred evenly. After heating to evaporate the excess ethanol and water, the heat storage material is pressed and formed into a block.

[0085] In this way, the expanded graphite and potassium carbonate solution are first mixed, which facilitates the uniform entry of some potassium carbonate into the pores of the expanded graphite. The OP-10 solution is then added to form a hydrophilic film on the surface of the expanded graphite, encapsulating some of the potassium carbonate components within the pores. The OP-10 solution is diluted with ethanol, and the hydroxide radicals in the ethanol combine with the ether bonds in the octylphenol polyoxyethylene ether, as well as the hydrogen bonds between the ethanol molecules and the water molecules, to form a composite hydrophilic group. This hydrophilic group has the ability to gain and lose water molecules within the heat storage composite material's operating temperature range, and its water-binding capacity is lower than that of potassium carbonate during the hydration process. Therefore, the hydrophilic film formed on the surface of the expanded graphite can better serve as a mass transfer channel for water molecules during the hydration reaction, attracting them and preventing excessive water vapor from entering the pores of the expanded graphite during the hydration reaction. Simultaneously, during the heat storage material's heat absorption and dehydration process, it does not affect the material's normal dehydration and heat storage when heated. Therefore, when the material needs to promote the release of heat in the hydration reaction during application, the water vapor pressure can be increased to allow water molecules to enter the material faster and increase the heat release rate without worrying about the problem of potassium carbonate deliquescence and hardening due to excessive water vapor pressure.

[0086] Among them, a permeable diaphragm 11 is also provided in each boss 10 in the heat storage module. The permeable diaphragm 11 encapsulates the heat storage material at the upper end of the boss 10 and forms a crystallization water accommodating cavity 12 at the lower end of the boss 10. The outer bottom surface of the boss 10 is made of elastic material.

[0087] In this way, when the tiles are exposed to sunlight during the day, the heat is transferred inward to the thermal storage module for absorption, the crystalline hydrate loses its crystalline water, and the water molecules overflow from the thermal storage material after being heated and enter the crystalline water holding cavity. The high temperature softens the elastic material on the outer top surface of the boss, and the outer side of the boss bulges outward, and the space of the crystalline water holding cavity increases to better accommodate the crystalline water and transfer heat inward. At night, the temperature drops, the space of the crystalline water holding cavity shrinks, and the pressure increases, so that the crystalline water in the crystalline water holding cavity can better re-enter the thermal storage material to produce a hydration reaction, releasing heat for absorption by the external water interlayer. Therefore, this structure is designed for the action of thermochemical adsorption thermal storage materials with crystalline hydrate as the main material, which can better cooperate to improve its heat absorption and release efficiency and internal heat transfer efficiency, thereby improving the efficiency of solar energy utilization.

[0088] The elastic material of the outer bottom surface of the boss 10 is designed in a wave shape.

[0089] In this way, its elastic effect can be better exerted.

[0090] A better option is that the lowest position of the water-permeable layer 4 is equal to or higher than the highest position of the water interlayer 3 .

[0091] In this way, it is more conducive for the water in the permeable layer to penetrate downward under the action of gravity and flow into the water interlayer.

[0092] In this embodiment, a waterproof coating is provided on the side of the tile body 1 .

[0093] This will better prevent moisture from flowing out of the tiles from both sides of the permeable layer.

[0094] Wherein, the two side edges of the tile body 1 in the width direction are provided with snap joints 13 .

[0095] Thus, the snap connector 13 can be connected to the tile connecting member 14, which is used to form the groove portion between adjacent roof tiles. This facilitates the overall connection and formation of the roof structure. In practice, the connection location can be waterproofed, such as by applying waterproof glue or laying waterproof membrane.

[0096] Among them, a lap groove 15 is formed on the upper surface of one end of the tile in the length direction, and a lap protrusion is formed by extending the upper edge of the other end outward as a whole. The lap protrusion can cooperate with the lap groove to form an overlap.

[0097] In this way, it is convenient to install and lay the tiles one by one along the length direction.

[0098] Among them, one end face of the tile in the length direction has a water pipe joint connected to the water interlayer, and the other end face has a water pipe interface 16 connected to the water interlayer. The water pipe joint can be plugged into and matched with the water pipe interface 16.

[0099] In this way, it is convenient to overlap and install the tiles one by one along the length direction, so as to complete the overall connection of the water interlayer. During the specific installation, the water pipe joint can be sealed and fixed by means of sealing rings or applying sealant. During implementation, the water pipe joint at the starting position can be connected to the tap water pipe. When there is insufficient rainwater, it can be connected to the tap water supply.

Claims

1. A water-storage heat-storage energy-saving tile, comprising a tile body, the tile body being arc-shaped in width and rectangular in horizontal projection direction, characterized in that: The tile body is provided with a supporting structure layer, a water interlayer and a water permeable layer in sequence from bottom to top in the thickness direction. The water permeable layer is made of a water-permeable porous material, and the bottom of the water permeable layer is connected to the water interlayer. A heat storage module is also arranged between the water permeable layer and the water interlayer. Heat storage materials are encapsulated in the heat storage module. Channels are left at the lowest positions on both sides of the heat storage module for communication between the water permeable layer and the water interlayer. The lower surface of the heat storage module forms the inner cavity surface of the water interlayer, and a plurality of outwardly protruding bosses are also provided on one side of the lower surface of the heat storage module; The heat storage material is a thermochemical adsorption heat storage material with crystalline hydrate as the main material; A permeable diaphragm is also provided in each boss in the heat storage module. The permeable diaphragm encapsulates the heat storage material at the upper end of the boss and forms a crystallized water accommodating cavity at the lower end of the boss. The outer bottom surface of the boss is made of elastic material.

2. The water-storage and heat-storage energy-saving tile according to claim 1, characterized in that: A heat-insulating material layer is also provided between the supporting structure layer and the water interlayer.

3. The water-storage and heat-storage energy-saving tile according to claim 1, characterized in that: The thermal insulation material layer is made of ceramic fiber paper material.

4. The water-heat-storage energy-saving tile according to claim 1, characterized in that: The water-permeable layer is made of porous silver-loaded glass.

5. The water-heat-storage energy-saving tile according to claim 1, characterized in that: A water-absorbing layer made of a water-absorbing material is also provided on the upper surface of the water-permeable layer; A plurality of arc-shaped protrusions are arranged on the upper surface of the water-absorbing layer; The water absorbing layer is made of silica gel material.

6. The water-heat-storage energy-saving tile according to claim 1, characterized in that: The upper surface of the tile body is black.

7. The water-heat-storage energy-saving tile according to claim 1, characterized in that: The heat storage material is prepared by mixing 95 parts by mass of hydrated potassium carbonate, 5 parts by mass of expanded graphite, and 4 parts by mass of OP-10; When preparing the thermal storage material, the expanded graphite and potassium carbonate solution are first mixed and stirred evenly, and then the OP-10 solution diluted with ethanol is added and mixed and stirred evenly. After heating to evaporate the excess ethanol and water, the material is pressed and formed into a block.

8. The water-heat-storage energy-saving tile according to claim 1, characterized in that: The elastic material of the outer bottom surface of the boss is designed in a wave shape.

9. The water-heat-storage energy-saving tile according to claim 1, characterized in that: The lowest point of the aquitard is equal to or higher than the highest point of the water interlayer; The sides of the tile body are provided with waterproof coating; The tile body is provided with a card joint on both side edges in the width direction; An overlapping groove is formed on the upper surface of one end of the tile in the longitudinal direction, and an overlapping protrusion is formed on the upper edge of the other end extending outward as a whole, and the overlapping protrusion can cooperate with the overlapping groove to form an overlap; One end face of the tile in the length direction is provided with a water pipe joint communicated with the water interlayer, and the other end face is provided with a water pipe interface communicated with the water interlayer, and the water pipe joint can be plugged and matched with the water pipe interface.

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