Building curtain wall and construction method and use thereof

Abstract

The application provides a building curtain wall and a construction method and application thereof, and the building curtain wall comprises the following raw material components by weight: cementing material 100 parts, admixture 5-40 parts, additive 0.1-10 parts, superabsorbent polymer 0.1-5 parts, conductive polymer 0.1-10 parts, water 10-40 parts, aggregate 10-30 parts and electrode material 10-30 parts. The application adopts traditional cementing material-based building material to construct a building curtain wall with energy storage function, a self-luminous system based on the building curtain wall utilizes photoelectricity and thermoelectricity to generate electricity, and additional electricity from a power grid is not needed, a photoelectron system is based on solar power generation, a thermoelectron system effectively utilizes a large amount of waste heat generated in a photovoltaic cell power generation process, the whole power generation process does not involve carbon emission, and the electricity generated by the power generation system is stored in the building curtain wall and used for supplying power to the luminous system at night, so that energy is saved and consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of new energy building curtain wall technology, and in particular to a building curtain wall and its construction method and application. Background Technology

[0002] In recent years, Building Integrated Photovoltaic / Thermal (BIPV / T) technology has been widely used in buildings. BIPV / T technology refers to the use of photovoltaic cells to replace traditional building materials and integrate them into the building envelope, such as roofs, windows, facades, balconies, and skylights. It is an effective way to combine solar photovoltaic power generation with buildings, and has advantages such as heat insulation, noise reduction, weather protection, privacy protection, on-site power generation, and reduction of room heating and cooling loads. It is considered the most promising solar energy collection technology for urban areas.

[0003] However, existing BIPV / T technology only includes loading photovoltaic cells on the exterior of buildings or structures to generate electricity, without taking into account the functionality of the curtain wall itself. Therefore, how to effectively develop the additional attributes of the curtain wall itself may be a development point and focus of BIPV / T technology in the future.

[0004] Furthermore, while cementitious materials are the most widely used building materials in public and civil buildings and can effectively meet the load requirements of BIPV curtain walls, their application as a core material in energy storage systems still needs further development. As the most widely used building material, developing economical and practical energy-storage-capable cementitious materials will have a profound impact on future societal progress and economic development. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a building curtain wall and its construction method and uses, in order to solve the problem that the existing BIPV / T technology only includes the loading of photovoltaic cells on the exterior facade of buildings or structures to generate electricity, without taking into account the functionality of the curtain wall itself.

[0006] To achieve the above and other related objectives, the present invention provides a building curtain wall comprising the following raw material components in parts by weight: 100 parts of cementitious material, 5-40 parts of admixture, 0.1-10 parts of additive, 0.1-5 parts of superabsorbent polymer, 0.1-10 parts of conductive polymer, 10-40 parts of water, 10-30 parts of aggregate, and 10-30 parts of electrode material.

[0007] Preferably, the cementing material is high-iron low-calcium silicate cement.

[0008] Preferably, the admixture is selected from one or more of silica fume, slag, volcanic ash, fly ash, steel slag, copper slag, zinc slag, fluorite powder, and red mud.

[0009] Preferably, the additive is selected from one or more of the following: water-reducing agent, swelling agent, water-retaining agent, thickener, shrinkage-reducing agent, water-repellent agent, redispersible latex powder, pigment, colorant and ionic enhancer.

[0010] Preferably, the superabsorbent polymer is selected from one or both of polyacrylic acid resin and acrylamide-acrylic acid copolymer.

[0011] Preferably, the conductive polymer is selected from one or more of polyaniline, copolymers of methacrylate and styrene, polypyrrole, polymethylamide, polystyrene-acrylamide, poly(3,4-ethylenedioxythiophene), polyacrylonitrile and polyesteramide.

[0012] Preferably, the aggregate is selected from one or more of the following: quartz sand, river sand, manufactured sand, chlorine-free sea sand, crushed stone, pebbles, and recycled stone.

[0013] Preferably, the electrode material is selected from one or more of nickel fiber, carbon fiber, graphene, carbon nanotubes, steel fiber, copper fiber, titanium fiber and iron wire mesh.

[0014] Preferably, the specific surface area of ​​the cementitious material is ≥300 m². 2 / kg.

[0015] Preferably, the specific surface area of ​​the admixture is ≥300 m². 2 / kg.

[0016] Preferably, the aggregate has a particle size of 0.16~20 mm.

[0017] Preferably, the superabsorbent polymer has an absorption rate of 500~1000g / g in deionized water.

[0018] Preferably, the conductivity of the conductive polymer is 550~1000 S / cm.

[0019] Preferably, the high-speed iron low-calcium silicate cement contains C4AF ≥ 18% and C3S ≤ 50%.

[0020] Preferably, the resistivity of the electrode material is less than 1 μΩ·m.

[0021] The second objective of this invention is to provide a construction method for a building curtain wall, wherein the raw material components are mixed evenly and then solidified to form a building curtain wall, and electrode materials are formed at both ends of the obtained building curtain wall.

[0022] Preferably, the curing process further includes a maintenance step after the curing and molding.

[0023] Preferably, during mixing, the superabsorbent polymer is first mixed with a portion of water and a portion of conductive polymer, and then mixed with other raw material components.

[0024] Preferably, after curing, the process further includes immersing the cured building curtain wall in a curing solution for maintenance, wherein the curing solution comprises a curing agent and the remaining conductive polymer.

[0025] The third objective of this invention is to provide a building curtain wall for energy storage.

[0026] The fourth objective of this invention is to provide a self-illuminating system based on a building curtain wall, comprising a building curtain wall, a power generation system, and a light-emitting system. The power generation system and the building curtain wall form a charging circuit, and the power generation system charges the building curtain wall through the charging circuit. The building curtain wall and the light-emitting system form a discharging circuit, and the building curtain wall supplies power to the light-emitting system through the discharging circuit when discharging.

[0027] Preferably, the power generation system includes an optoelectronic system and a thermoelectronic system.

[0028] Preferably, the light-emitting system is an LED light-emitting dot matrix.

[0029] Preferably, the optoelectronic system includes a plurality of photovoltaic cells, wherein the photovoltaic cells are selected from one or more of silicon-based, cadmium telluride, copper indium gallium selenide, gallium arsenide and perovskite photovoltaic cells.

[0030] Preferably, the thermoelectric system includes a plurality of thermoelectric components; the thermoelectric components are selected from one or more of lead-based, magnesium-based, magnesium-silicon-based, tellurium-based, bismuth-based, and antimony-based thermoelectric components.

[0031] Preferably, the LED light-emitting matrix is ​​formed by connecting a number of LEDs in series or in parallel; the LEDs are selected from one or more of monochrome LEDs, flashing LEDs, color-changing LEDs, infrared LEDs, ultraviolet LEDs, and organic LEDs.

[0032] Preferably, the charging circuit is equipped with a reverse charging control device.

[0033] Preferably, the discharge circuit is equipped with a voltage boosting and stabilizing device.

[0034] Preferably, the light-emitting system is controlled by a light control device or a circuit control device.

[0035] As described above, the building curtain wall, its construction method, and its uses according to the present invention have the following beneficial effects: Building curtain walls with energy storage functions are constructed using traditional cementitious building materials, eliminating the need for additional energy storage devices such as batteries. This effectively reduces the safety risks associated with using photovoltaic cells to replace traditional building materials in the prior art, and does not significantly affect the lifespan of the building materials themselves. The self-luminous system based on the building curtain wall utilizes photoelectric and thermoelectric power for self-powering, eliminating the need to obtain additional electricity from the grid. The photoelectric system is based on solar power generation, and the thermoelectric system effectively utilizes the large amount of waste heat generated during photovoltaic cell power generation. The entire power generation process does not involve carbon emissions. The electrical energy generated by the power generation system is stored within the building curtain wall and used to power the luminous system at night. This self-luminous system reduces energy consumption and has broad application prospects. Attached Figure Description

[0036] Figure 1 The diagram shown is a structural schematic of a self-illuminating system based on a building curtain wall, as illustrated in Example 1.

[0037] Explanation of icon numbers

[0038] 1 Building curtain wall 2 optoelectronic systems 3 Thermoelectronic systems 4 Light-emitting system 5 hot end 6 cold end Detailed Implementation

[0039] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0040] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0041] Furthermore, it should be understood that the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, does not preclude the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, unless otherwise stated. It should also be understood that the combined connection relationship between one or more devices / apparatus mentioned in this invention does not preclude the existence of other devices / apparatus before or after the combined devices / apparatus, or the insertion of other devices / apparatus between these explicitly mentioned devices / apparatus, unless otherwise stated. Moreover, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not for limiting the order of the method steps or limiting the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0042] This application provides a specific building curtain wall, which comprises the following raw material components in parts by weight: 100 parts of cementitious material, 5-40 parts of admixture, 0.1-10 parts of additive, 0.1-5 parts of superabsorbent polymer, 0.1-10 parts of conductive polymer, 10-40 parts of water, 10-30 parts of aggregate, and 10-30 parts of electrode material.

[0043] In one specific embodiment, the cementing material is high-iron low-calcium silicate cement.

[0044] In a more specific embodiment, the high-speed iron low-calcium silicate cement contains C4AF ≥ 18% and C3S ≤ 50%.

[0045] Silicate cement clinker is mainly composed of four minerals: tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and tetracalcium aluminoferrite (C4AF). The order of heat of hydration and hydration rate of each mineral is C3A > C3S > C4AF > C2S. The high-iron low-calcium silicate cement of this application has a high C4AF content (18 ≥ %), which can reduce the heat of hydration and heat release rate of cement. The building curtain wall formed with other raw material components is conducive to realizing the energy storage function.

[0046] In one specific embodiment, the admixture is selected from one or more of silica fume, slag, volcanic ash, fly ash, steel slag, copper slag, zinc slag, fluorite powder, and red mud.

[0047] In a more specific embodiment, the admixture is prepared by mixing silica fume, copper slag and zinc slag in a mass ratio of (2~3):(4~6):(1~2), such as 3:5:2 or 2.5:4.5:2.5.

[0048] In a more specific embodiment, the admixture is prepared by mixing fly ash, slag, steel slag, copper slag and fluorite powder in a mass ratio of (2~3):(2~3):(3~4):(1~2):(1~2), such as 3:2:3:1:1 or 2:2:3:1:1.

[0049] In one specific embodiment, the additive is selected from one or more of the following: water-reducing agents, swelling agents, water-retaining agents, thickeners, shrinkage-reducing agents, water-repellent agents, redispersible latex powder, pigments, colorants, and ionic reinforcing agents.

[0050] In one specific embodiment, the superabsorbent polymer is selected from one or both of polyacrylic acid resin and acrylamide-acrylic acid copolymer.

[0051] In one specific embodiment, the superabsorbent polymer has an absorption rate of 500~1000 g / g in deionized water.

[0052] The formula for calculating the liquid absorption rate is: Where Q is the liquid absorption ratio in g / g; m is the weight before liquid absorption in g; and M is the weight after liquid absorption and filtration in g.

[0053] In one specific embodiment, the conductive polymer is selected from one or more of polyaniline, copolymers of methacrylate and styrene, polypyrrole, polymethylamide, polyphenyleneacrylamide, poly(3,4-ethylenedioxythiophene), polyacrylonitrile and polyesteramide.

[0054] In a more specific embodiment, the conductive polymer is prepared by mixing polyesteramide, poly(3,4-ethylenedioxythiophene) and polypyrrole in a mass ratio of (1~4):(1~4):(1~3), such as 4:3:3.

[0055] In a more specific embodiment, the conductive polymer is prepared by mixing polyaniline, polyacrylonitrile, polystyrene-acrylamide, polyesteramide and polypyrrole in a mass ratio of (2~3):(1~2):(1~2):(3~4):(1~2), such as 2:2:1:3:2.

[0056] In one specific embodiment, the conductivity of the conductive polymer is 550~1000 S / cm.

[0057] In one specific embodiment, the aggregate is selected from one or more of the following: quartz sand, river sand, manufactured sand, chlorine-free sea sand, crushed stone, pebbles, and recycled stone.

[0058] In a more specific embodiment, the aggregate is prepared by mixing manufactured sand and crushed stone in a mass ratio of (3~4):(5~7), such as 3:7 or 4:6.

[0059] In a more specific embodiment, the aggregate is prepared by mixing quartz sand, river sand, crushed stone and pebbles in a mass ratio of (1~2):(2~4):(3~5):(2~3), such as 1:2:5:2.

[0060] In one specific embodiment, the electrode material is selected from one or more of nickel fiber, carbon fiber, graphene, carbon nanotubes, steel fiber, copper fiber, titanium fiber, and wire mesh. The electrode material also serves to enhance the strength of the curtain wall.

[0061] In one specific embodiment, the resistivity of the electrode material is less than 1 μΩ·m.

[0062] In a more specific embodiment, the electrode material is prepared by mixing graphene, steel fiber and wire mesh in a mass ratio of (0.1~1):(3~4):(6~7); specifically, 0.1:3:7.

[0063] In a more specific embodiment, the electrode material is prepared by mixing carbon fiber, steel fiber, titanium fiber and copper fiber in a mass ratio of (1~2):(3~4):(1~2):(3~4), such as 1:3:2:4.

[0064] In one specific embodiment, the specific surface area of ​​the cementitious material is ≥300 m². 2 / kg.

[0065] In one specific embodiment, the specific surface area of ​​the admixture is ≥300 m². 2 / kg.

[0066] In one specific embodiment, the aggregate has a particle size of 0.16~20 mm.

[0067] In a more specific embodiment, the particle size of the quartz sand, river sand, manufactured sand, and chlorine-free sea sand is 0.16~5mm.

[0068] In a more specific embodiment, the particle size of the crushed stone, pebbles, and recycled stone is 5-20 mm.

[0069] This application provides a construction method for a building curtain wall, in which the raw material components are mixed evenly and then cured to form a building curtain wall, and electrode materials are formed at both ends of the obtained building curtain wall.

[0070] In one specific embodiment, the curing process further includes a maintenance step; in a more specific embodiment, during mixing, the superabsorbent polymer is first mixed with a portion of water and a portion of conductive polymer, and then mixed with other raw material components.

[0071] In one specific embodiment, after curing, the process further includes immersing the cured building curtain wall in a curing solution for maintenance, wherein the curing solution comprises a curing agent and the remaining conductive polymer.

[0072] In one specific embodiment, the curing agent is selected from one of water, sodium silicate aqueous solution, triethanolamine aqueous solution, and sodium methylsiloxane aqueous solution.

[0073] In a more specific embodiment, the mass-to-volume ratio of the remaining conductive polymer to the curing agent is 0.001~0.05 kg / L.

[0074] This application provides an embodiment of a building curtain wall used for energy storage.

[0075] In the above-mentioned technical solution of this application, the aggregate in the raw material composition of the building curtain wall is used as a structural material, and the cementing material and other raw material components are used as cementing material-based electrolytes, so that the building curtain wall forms a capacitor structure and has the function of energy storage.

[0076] This application provides a specific construction method for a building curtain wall, including the following steps:

[0077] 1) Disperse the aggregate in a fluidized cementitious material-based electrolyte to obtain a mixed mobile phase; divide the mixed mobile phase into four equal parts, and divide the conductive material into two equal parts for later use;

[0078] 2) Mix the two conductive parts with the two mixed mobile phases evenly, pour them into two non-adjacent slots of the triple mold, and ensure that some electrode material is exposed on the surface; pour the third mixed mobile phase into the middle slot of the triple mold, remove the spacer baffle, and fill the mold gaps with the fourth mixed mobile phase.

[0079] 3) Curing and solidification to obtain the building curtain wall.

[0080] This application also provides a more specific construction method for building curtain walls, including the following steps:

[0081] 1) Mix the superabsorbent polymer, some water, and some conductive polymer evenly to form a mixture for later use;

[0082] 2) Mix the cementitious material, admixture and aggregate evenly, add the additive, the remaining water and the mixture formed in step 1), and stir until it is in a uniform flow state to obtain a mixed mobile phase; divide the mixed mobile phase into four equal parts and divide the electrode material into two equal parts for later use;

[0083] 3) Mix the two portions of electrode material with the two portions of mixed mobile phase evenly, pour them into two non-adjacent slots of the triple mold, and ensure that some electrode material is exposed on the surface; pour the third portion of mixed mobile phase into the middle slot of the triple mold, remove the spacer baffle, fill the gaps in the mold with the fourth portion of mixed mobile phase, and cure to obtain the block.

[0084] 4) Disperse the remaining conductive polymer in the curing agent to form a curing solution;

[0085] 5) The blocks obtained in step 3) are immersed in the curing solution obtained in step 4) for curing to obtain the building curtain wall.

[0086] In a more specific embodiment, curing is carried out in air for 1-3 days. The curing period is 4-7 days. During curing, the curing solution must completely cover the surface of the blocks. A conductive polymer is incorporated into the curing process as a component of the curing solution. Part of the conductive polymer penetrates into the interior through the pores of the building curtain wall, while another part forms a conductive polymer film on the surface of the curtain wall, increasing its conductivity.

[0087] This application embodiment provides a method such as Figure 1 The specific self-luminous system based on a building curtain wall shown includes a building curtain wall 1, a power generation system, and a light-emitting system 4. The power generation system and the building curtain wall 1 form a charging circuit, and the power generation system charges the building curtain wall 1 through the charging circuit. The building curtain wall 1 and the light-emitting system form a discharging circuit, and the building curtain wall 1 supplies power to the light-emitting system through the discharging circuit when discharging.

[0088] In the above technical solution of this application, the building curtain wall serves as a supercapacitor for energy storage. The charging circuit charges the building curtain wall through the power generation system, and the building curtain wall supplies power to the light-emitting system when discharging. This self-luminous system based on the building curtain wall utilizes photoelectric and thermoelectric power for self-powering, eliminating the need to obtain additional power from the grid. The photoelectric system is based on solar power generation, and the thermoelectric system effectively utilizes the large amount of waste heat generated during photovoltaic cell power generation. The entire power generation process does not involve carbon emissions. The electrical energy generated by the power generation system is stored within the building curtain wall and used to power the light-emitting system at night. This self-luminous system reduces energy consumption and has broad application prospects.

[0089] In one specific implementation, the power generation system includes a photoelectronic system 2 and a thermoelectronic system 3.

[0090] In a like Figure 1 In a more specific embodiment shown, the building curtain wall 1 includes a side A and a side B, where side A is the light-facing side and side B is the backlight side; the optoelectronic system 2 is disposed on side A of the building curtain wall 1, and a heat dissipation gap of 0-200 mm is maintained between it and side A; the thermoelectronic system 3 includes a hot end, a wire, and a cold end, where the hot end is connected to the back of the optoelectronic system or side A of the building curtain wall 1, and the cold end is connected to side B of the building curtain wall 1.

[0091] In the above technical solution of this application, the thermoelectric system is based on the prior art and generates electricity by utilizing temperature difference. In the above setting method, the hot end can absorb the heat generated by the optoelectronic system 2, and the cold end is set on the cold side B of the building curtain wall 1, so that the temperature difference is large and the power generation efficiency of the thermoelectric component subsystem 3 is high.

[0092] In one specific implementation, the light-emitting system 2 is an LED light-emitting dot matrix.

[0093] In one specific embodiment, the optoelectronic system includes a plurality of photovoltaic cells, which are selected from one or more of silicon-based, cadmium telluride, copper indium gallium selenide, gallium arsenide, and perovskite photovoltaic cells.

[0094] In one specific embodiment, the thermoelectric system 3 includes a plurality of thermoelectric components; the thermoelectric components are selected from one or more of lead-based, magnesium-based, magnesium-silicon-based, tellurium-based, bismuth-based, and antimony-based thermoelectric components.

[0095] In one specific embodiment, the LED light-emitting matrix is ​​formed by connecting a number of LEDs in series or in parallel; the LEDs are selected from one or more of monochrome LEDs, flashing LEDs, color-changing LEDs, infrared LEDs, ultraviolet LEDs, and organic LEDs.

[0096] In one specific embodiment, the charging circuit is equipped with an anti-reverse charging control device, such as an anti-reverse charging control circuit or an anti-reverse diode.

[0097] In a more specific embodiment, an anti-reverse charging control device is provided between the power generation system and the building curtain wall 1.

[0098] In one specific implementation, the discharge circuit is equipped with a boost voltage regulator, such as a voltage regulator.

[0099] In a more specific embodiment, a voltage boosting and stabilizing device is provided between the building curtain wall 1 and the light-emitting system 4.

[0100] In one specific implementation, the light-emitting system 4 is controlled by a light control device or a circuit control device, wherein the light control device can be a light control switch.

[0101] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0102] Example 1

[0103] In this embodiment, the building curtain wall comprises the following raw material components: 10 kg of cementitious material, 1 kg of admixture, 0.2 kg of additive, 0.05 kg of superabsorbent polymer, 1 kg of conductive polymer, 2.5 kg of water, 1.5 kg of aggregate, and 1.5 kg of electrode material. The cementitious material has a specific surface area ≥ 300 m². 2 / kg of high-iron low-calcium silicate cement, with slag as the admixture; water-reducing agent as the additive; acrylamide-acrylic acid copolymer as the superabsorbent polymer; and poly(3,4-ethylenedioxythiophene) as the conductive polymer. The aggregate is made by mixing river sand with a particle size of 0.16~2mm and crushed stone with a particle size of 5~10mm in a mass ratio of 4:6 to obtain wire mesh. Wire mesh is selected as the electrode material.

[0104] In this embodiment, the construction method of the building curtain wall includes the following steps:

[0105] 1) The superabsorbent polymer pre-absorbs one-tenth water and half of the conductive polymer to form a mixture, which is then left to stand for one hour;

[0106] 2) Mix cement, admixture and aggregate evenly, add admixture, the remaining nine-tenths of water and step 1) to form a mixture, stir until it is in a uniform flow state to obtain a mixed mobile phase; divide the mixed mobile phase into four equal parts, and divide the electrode material into two equal parts for later use;

[0107] 3) Mix the two portions of electrode material with the two portions of mixed mobile phase evenly, pour them into two non-adjacent slots of the triple mold, and ensure that some electrode material is exposed on the surface; pour the third portion of mixed mobile phase into the middle slot of the triple mold, remove the partition baffle, fill the gaps in the mold with the fourth portion of mixed mobile phase, and cure in the air for 2 days to obtain the block.

[0108] 4) Disperse the remaining half of the conductive polymer in an aqueous sodium silicate solution to form a dispersion;

[0109] 5) The blocks obtained in step 5) are immersed in the dispersion obtained in step 5) and cured for 6 days to obtain the building curtain wall.

[0110] This embodiment provides a method such as Figure 1 The illustrated self-emissive system based on a building curtain wall includes a building curtain wall 1, a power generation system, and a light-emitting system 4. The power generation system and the building curtain wall 1 form a charging circuit, through which the power generation system charges the building curtain wall 1. The building curtain wall 1 and the light-emitting system form a discharging circuit, through which the building curtain wall 1 supplies power to the light-emitting system when discharging. In the charging circuit, the building curtain wall 1 is connected in parallel with the power generation system, and in the discharging circuit, the building curtain wall 1 is connected in parallel with the light-emitting system 4. The power generation system includes a photoelectronic system 2 and a thermoelectronic system 3. The photoelectronic system 2 consists of several cadmium telluride photovoltaic cells, and the thermoelectronic system 3 consists of several lead telluride-based thermoelectric components. The light-emitting system 4 is a monochrome LED light-emitting dot matrix.

[0111] like Figure 1As shown, the building curtain wall 1 includes a side A and a side B. The side A is the light-facing side, and the side B is the backlight side. The optoelectronic system 2 is located on the side A of the building curtain wall 1, tilted at 45°, and has a 100 mm heat dissipation gap with the side A. The optoelectronic system 2 is connected to the building curtain wall 1 in parallel, connected to the partially exposed electrode material of the building curtain wall 1, and is equipped with an anti-reverse diode.

[0112] The thermal electronics system 3 includes a hot end 5, a wire, and a cold end 6. The hot end 5 is connected to the back of the cadmium telluride photovoltaic cell, and the cold end 6 is connected to the B side of the building curtain wall 1. The thermal electronics system 3 is connected to the building curtain wall 1 in parallel, connected to the partially exposed electrode material of the building curtain wall 1, and equipped with a reverse charging control device.

[0113] The light-emitting system 4 is fixed to surface A of the building curtain wall 1, arranged in a manner that does not affect the photovoltaic modules' reception of solar radiation. The light-emitting system 4 is connected to the building curtain wall 1 in parallel, connected to the exposed electrode material on the surface of the building curtain wall 1, and equipped with a voltage boosting and stabilizing device and a light control device. A self-emissive system based on a building curtain wall is thus constructed.

[0114] In this embodiment, the self-illuminating curtain wall is powered by the optoelectronic system 2 and the thermoelectronic system 3, without the need to obtain additional power from the grid. The optoelectronic system 2 is based on solar power generation, and the thermoelectronic system 3 effectively utilizes the large amount of waste heat generated during the photovoltaic cell power generation process. The entire power generation process does not involve carbon emissions. The electrical energy generated by the power generation system is stored in the building curtain wall and used to power the luminous system at night.

[0115] The self-luminous system based on the building curtain wall in this embodiment stores electrical energy in the building curtain wall 1 after being exposed to sunlight and absorbing heat during the day in August in Shanghai. It can then continuously and stably emit light for 10 hours at night using a monochrome LED light-emitting matrix with a total power of 25W.

[0116] Example 2

[0117] The difference between Example 2 and Example 1 is that the raw material composition of the building curtain wall is different, but the construction method of the building curtain wall and the self-luminous system based on the building curtain wall are exactly the same.

[0118] The building curtain wall of this embodiment includes the following raw material components: 10 kg of cementitious material, 2.5 kg of admixture, 0.5 kg of additive, 0.35 kg of superabsorbent polymer, 0.4 kg of conductive polymer, 2.5 kg of water, 2 kg of aggregate and 1.5 kg of electrode material.

[0119] Among them, the cementitious material has a specific surface area ≥300 m² 2The high-iron low-calcium silicate cement per kg is prepared by mixing silica fume, copper slag, and zinc slag in a mass ratio of 3:5:2; the admixture is prepared by mixing water-reducing agent, water-retaining agent, and ion-reinforcing agent in a mass ratio of 3:3:4; the superabsorbent polymer is prepared by mixing polyacrylic acid resin and acrylamide-acrylic acid copolymer in a mass ratio of 4:6. The conductive polymer is prepared by mixing polyesteramide, poly(3,4-ethylenedioxythiophene), and polypyrrole in a mass ratio of 4:3:3; the aggregate is prepared by mixing manufactured sand with a particle size of 0.2~3mm and crushed stone with a particle size of 10~20mm in a mass ratio of 3:7; the electrode material is prepared by mixing graphene, steel fiber, and iron wire mesh in a mass ratio of 0.1:3:7.

[0120] Example 3

[0121] The difference between Example 3 and Example 1 is that the raw material composition of the building curtain wall is different, but the construction method of the building curtain wall and the self-luminous system based on the building curtain wall are exactly the same.

[0122] The building curtain wall of this embodiment includes the following raw material components: 10 kg of cementitious material, 3 kg of admixture, 1 kg of additive, 0.5 kg of superabsorbent polymer, 1 kg of conductive polymer, 3.5 kg of water, 3 kg of aggregate and 2 kg of electrode material.

[0123] Among them, the cementitious material has a specific surface area ≥300 m² 2 The high-iron low-calcium silicate cement per kg is made by mixing fly ash, slag, steel slag, copper slag, and fluorite powder in a mass ratio of 3:2:3:1:1; the admixtures are made by mixing thickener, water-retaining agent, expanding agent, shrinkage reducing agent, redispersible latex powder, and ionic reinforcing agent in a mass ratio of 1:2:1:1:2:1:2; and the superabsorbent polymer is made by mixing polyacrylic acid resin and acrylamide-acrylic acid copolymer in a mass ratio of 5:5. The conductive polymer is prepared by mixing polyaniline, polyacrylonitrile, polystyrene-acrylamide, polyesteramide and polypyrrole in a mass ratio of 2:2:1:3:2; the aggregate is prepared by mixing quartz sand with a particle size of 1~4mm, river sand with a particle size of 1~2mm, crushed stone with a particle size of 5~10mm and pebbles with a particle size of 15~20mm in a mass ratio of 1:2:5:2; the electrode material is prepared by mixing carbon fiber, steel fiber, titanium fiber and copper fiber in a mass ratio of 1:3:2:4.

[0124] Example 4

[0125] The difference between Example 4 and Example 2 is that the structure of the self-luminous system based on the building curtain wall is different, but the raw material composition and construction method of the building curtain wall are exactly the same.

[0126] This embodiment of a self-emissive system based on a building curtain wall includes a building curtain wall 1, a power generation system, and a light-emitting system 4. The power generation system and the building curtain wall 1 form a charging circuit, through which the power generation system charges the building curtain wall 1. The building curtain wall 1 and the light-emitting system form a discharging circuit, through which the building curtain wall 1 supplies power to the light-emitting system when discharging. In the charging circuit, the building curtain wall 1 and the power generation system are connected in series; in the discharging circuit, the building curtain wall 1 and the light-emitting system 4 are connected in series. The optoelectronic system consists of several copper indium gallium selenide photovoltaic cells, and the thermionic system consists of several magnesium-based thermoelectric components. The light-emitting system is a color-changing LED light-emitting matrix.

[0127] The optoelectronic system is fixed to the surface of the building curtain wall 1A, with a 150 mm heat dissipation gap between the back of the optoelectronic system and the surface of the building curtain wall 1A. The optoelectronic system is connected to the building curtain wall 1A in series, connected to the exposed electrode material on the surface of the building curtain wall 1A, and an anti-reverse charging control device is installed.

[0128] The hot end of the thermoelectronic system is fixed to surface A of the building curtain wall 1, and the cold end is fixed to surface B of the building curtain wall 1. The thermoelectronic system is connected to the building curtain wall 1 in series, connected to the partially exposed electrode material on the surface of the building curtain wall 1, and an anti-reverse charging control circuit is provided.

[0129] The light-emitting system is fixed to surface A of the building curtain wall 1 and arranged in a manner that does not affect the photovoltaic modules' reception of solar radiation. The light-emitting system is connected in series with the building curtain wall 1, connected to the exposed structural electrodes of the building curtain wall 1, and a voltage regulator and a light-controlled switch are installed. A self-emitting system based on a building curtain wall is fabricated and constructed according to this method.

[0130] In this embodiment, the self-illuminating curtain wall is powered by the optoelectronic system 2 and the thermoelectronic system 3, without the need to obtain additional power from the grid. The optoelectronic system 2 is based on solar power generation, and the thermoelectronic system 3 effectively utilizes the large amount of waste heat generated during the photovoltaic cell power generation process. The entire power generation process does not involve carbon emissions. The electrical energy generated by the power generation system is stored in the building curtain wall and used to power the luminous system at night.

[0131] The self-luminous system based on the building curtain wall in this embodiment stores electrical energy in the building curtain wall 1 after being exposed to sunlight and absorbing heat during the daytime in August in Shanghai. It can then continuously and stably emit light for 9.5 hours at night using a color-changing LED light-emitting matrix with a total power of 20W.

[0132] In summary, this invention utilizes traditional cementitious building materials to construct a building curtain wall with energy storage capabilities, eliminating the need for additional energy storage devices such as batteries. This effectively reduces the safety risks associated with using photovoltaic cells to replace traditional building materials in existing technologies, and does not significantly affect the lifespan of the building materials themselves. The self-luminous system based on this application utilizes photoelectric and thermoelectric power for self-powering, eliminating the need to obtain additional electricity from the grid. The photoelectronic system is based on solar power generation, and the thermoelectronic system effectively utilizes the large amount of waste heat generated during photovoltaic cell power generation. The entire power generation process does not involve carbon emissions. The electrical energy generated by the power generation system is stored within the building curtain wall and used to power the luminous system at night. This self-luminous system reduces energy consumption and has broad application prospects. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0133] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A building curtain wall, characterized in that, The building curtain wall comprises the following raw material components in parts by weight: 100 parts of cementitious material, 5-40 parts of admixture, 0.1-10 parts of additive, 0.1-5 parts of superabsorbent polymer, 0.1-10 parts of conductive polymer, 10-40 parts of water, 10-30 parts of aggregate and 10-30 parts of electrode material. The conductive polymer is selected from one or more of polyaniline, copolymers of methacrylate and styrene, polypyrrole, polymethylamide, polystyrene-acrylamide, poly(3,4-ethylenedioxythiophene), polyacrylonitrile and polyesteramide; The electrode material is selected from one or more of nickel fiber, carbon fiber, graphene, carbon nanotube, steel fiber, copper fiber, titanium fiber and iron wire mesh; electrode material is formed at both ends of the building curtain wall, and the electrode materials at both ends are not adjacent. The building curtain wall is prepared by the following method: 1) A mixture of a highly absorbent polymer, a portion of water, and a portion of a conductive polymer is mixed evenly to form a mixture for later use; 2) A mixture of a cementitious material, an admixture, and an aggregate is mixed evenly, and an additive, the remaining water, and the mixture formed in step 1) are added. The mixture is stirred until it reaches a uniform flow state to obtain a mixed mobile phase; the mixed mobile phase is divided into four equal parts, and the electrode material is divided into two equal parts for later use; 3) The two parts of electrode material are mixed evenly with the two parts of the mixed mobile phase, and poured into two non-adjacent slots of a triple mold, ensuring that part of the electrode material is exposed on the surface; Pour the third part of the mixed mobile phase into the middle slot of the triple mold, remove the spacer baffle, fill the gaps in the mold with the fourth part of the mixed mobile phase, and let it solidify. The resistivity of the electrode material is less than 1 μΩ·m.

2. The building curtain wall according to claim 1, characterized in that: The cementing material is high-iron low-calcium silicate cement; And / or, the admixture is selected from one or more of silica fume, slag, volcanic ash, fly ash, steel slag, copper slag, zinc slag, fluorite powder and red mud; And / or, the additive is selected from one or more of the following: water-reducing agents, swelling agents, water-retaining agents, thickeners, shrinkage-reducing agents, water-repellent agents, redispersible latex powders, pigments, colorants, and ionic reinforcing agents; And / or, the superabsorbent polymer is selected from one or both of polyacrylic acid resin and acrylamide-acrylic acid copolymer; And / or, the aggregate is selected from one or more of the following: quartz sand, river sand, manufactured sand, chlorine-free sea sand, crushed stone, pebbles and recycled stone.

3. The building curtain wall according to claim 1, characterized in that: The specific surface area of ​​the cementitious material is ≥300 m² 2 / kg; And / or, the specific surface area of ​​the admixture is ≥300 m² 2 / kg; And / or, the particle size of the aggregate is 0.16~20 mm; And / or, the superabsorbent polymer has an absorption rate of 500~1000 g / g in deionized water; And / or, the conductivity of the conductive polymer is 550~1000 S / cm.

4. A construction method for a building curtain wall as described in any one of claims 1-3, characterized in that: After the raw material components are mixed evenly, they are cured and molded to form a building curtain wall.

5. The construction method according to claim 4, characterized in that: The curing process also includes a maintenance step; and / or, during mixing, the superabsorbent polymer is first mixed with a portion of water and a portion of conductive polymer, and then mixed with other raw material components.

6. The construction method according to claim 5, characterized in that: After curing, the process also includes immersing the cured building curtain wall in a curing solution for maintenance, wherein the curing solution consists of a curing agent and the remaining conductive polymer.

7. The use of a building curtain wall as described in any one of claims 1-3 for energy storage.

8. A self-illuminating system based on a building curtain wall, characterized in that: The system includes a building curtain wall (1) as described in any one of claims 1-3, a power generation system and a light-emitting system (4), wherein the power generation system and the building curtain wall (1) form a charging circuit, and the power generation system charges the building curtain wall (1) through the charging circuit; the building curtain wall (1) and the light-emitting system form a discharge circuit, and the building curtain wall (1) supplies power to the light-emitting system through the discharge circuit when it discharges.

9. The self-illuminating system based on building curtain walls according to claim 8, characterized in that: The power generation system includes an optoelectronic system (2) and a thermoelectronic system (3); And / or, the light-emitting system (4) is an LED light-emitting dot matrix.

10. The self-illuminating system based on building curtain walls according to claim 9, characterized in that: The optoelectronic system (2) includes a photovoltaic cell, which is selected from one or more of silicon-based, cadmium telluride, copper indium gallium selenide, gallium arsenide and perovskite photovoltaic cells; And / or, the thermoelectric system (3) includes a thermoelectric component; the thermoelectric component is selected from one or more of lead-based, magnesium-based, magnesium-silicon-based, tellurium-based, bismuth-based, and antimony-based thermoelectric components; And / or, the LED light-emitting matrix is ​​formed by LEDs connected in series or in parallel; the LEDs are selected from one or more of monochrome LEDs, flashing LEDs, color-changing LEDs, infrared LEDs, ultraviolet LEDs, and organic LEDs; And / or, the charging circuit is equipped with an anti-reverse charging control device; And / or, the discharge circuit is equipped with a voltage boosting and stabilizing device; And / or, the light-emitting system (4) is controlled by a light control device or a circuit control device.

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