CN116177650B - Wave energy assisted enhanced solar driven seawater desalination composite structure and application thereof - Google Patents

Wave energy assisted enhanced solar driven seawater desalination composite structure and application thereof Download PDF

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CN116177650B
CN116177650B CN202310436657.1A CN202310436657A CN116177650B CN 116177650 B CN116177650 B CN 116177650B CN 202310436657 A CN202310436657 A CN 202310436657A CN 116177650 B CN116177650 B CN 116177650B
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carbon fiber
dome
photo
area
fabric
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CN116177650A (en
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张烨
尹立新
熊克
王姜
丁霞
王相明
任怀林
朱承乾
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Jiangsu Hengli Chemical Fiber Co Ltd
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Jiangsu Hengli Chemical Fiber Co Ltd
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    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/043—Details
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
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    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/275—Carbon fibres
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    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
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    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
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    • Y02A20/124—Water desalination

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Abstract

The invention relates to a wave energy assisted enhanced solar driven seawater desalination composite structure and application thereof, wherein the composite structure sequentially comprises a dome resin region, a multi-layer tissue fabric region and an array-shaped photo-thermal tube from bottom to top; the dome resin region is in a dome shape, and the top end of the dome resin region faces downwards; the dome resin region has a density lower than that of water; the multi-layer tissue fabric area consists of a fixedly connected carbon fiber fabric area and a polyethylene fabric area; the lower part of the array-shaped photo-thermal tube is fixedly connected with the carbon fiber fabric area; the application is that the composite structure is placed in sea water, under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, and the sea water on the surface is evaporated into steam. The product of the invention can realize self-floating and can realize the effective absorption of sunlight at any angle; the product of the invention is applied to sea water desalination, converts wave energy into mechanical motion of photo-thermal materials, accelerates airflow velocity of interfaces, and enhances the generation rate of water vapor.

Description

Wave energy assisted enhanced solar driven seawater desalination composite structure and application thereof
Technical Field
The invention belongs to the technical field of sea water desalination, and relates to a wave energy assisted enhanced solar drive sea water desalination composite structure and application thereof.
Background
The ocean contains a large amount of water resources, and the extraction of fresh water from salt-containing seawater is one of the directions for solving the shortage of fresh water resources. At this stage, the method of desalting from sea water can be basically classified into distillation, electroosmosis, reverse osmosis, photothermal, and the like. The photo-thermal method is taken as a method for obtaining fresh water by utilizing solar energy, is a green and environment-friendly scheme without other energy input, and is a hot strategy due to the characteristics of low cost, applicability to a small range and portability of the device. Document 1 (Highly flexible and efficient solar steam generation device [ J)]Advanced Materials,2017,29 (30): 1701756.) is to spread seawater on the surface of a material having photothermal properties, evaporate the seawater on the surface of the material by heating the material under the irradiation of sunlight, and obtain fresh water after condensing the vapor. However, this solution is limited by the solar illumination area, i.e. there is a limit to the solar energy input per unit area, which results in a limit to the steam generation amount of the photo-thermal material per unit area, so that by combining solar energy with other types of natural energy, it is possible to ensure a full green energy while increasing the energy density per unit area, which necessarily makes a great breakthrough in the generation of steam amount. However, because the vapor evaporated from the photothermal material needs to be collected, the process of vapor generation is often completed in a relatively closed system, document 2 (Over 10kg m -2 h -1 evaporation rate enabled by a 3D interconnected porous carbon foam[J]Joule,2020,4 (4): 928-937.) is a solution in which the amount of steam generated is significantly increased by natural wind energy or other energy sources, but at the same time, because of the blowing of the wind force, the system is difficult to close, causing great loss of steam collection, and how to increase steam generation without affecting steam collection is a necessary consideration. It is conceivable to drive the sea in solar energyIn the process of water desalination, the photo-thermal material needs to be in contact with seawater, waves in the ocean can enable the photo-thermal material to move along with the seawater, and the generation of the photo-thermal material through the mechanical movement caused by the wave energy is one of the possible strategies. Moreover, the problems that the wave energy is large and small, the light and heat body is effectively caused to have large fluctuation when the wave energy is small, and the light and heat material is not invalid due to large-amplitude movement when the wave energy is large are all the problems to be solved.
Therefore, the wave energy is introduced into the solar-driven seawater desalination system, namely, the wave energy is directly or indirectly converted into steam to be generated, so that the green wave energy is effectively utilized, and a material and structure for efficient seawater desalination, which integrate solar driving, wave energy driving and mechanical robustness, are also needed to be developed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a solar-driven seawater desalination composite structure with wave energy assisted enhancement.
In order to achieve the above purpose, the invention adopts the following scheme:
the solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin region, a multi-layer tissue fabric region and an array-shaped photo-thermal tube from bottom to top;
the dome resin region is dome-shaped (may be a hemispherical shell or a shape similar to a hemispherical shell), and the top end is downward; the dome resin region has a density lower than that of water;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, the lower part is a polyethylene fabric area, the multi-layer is generally multi-layer, the carbon fiber area is multi-layer, and the polyethylene area is also multi-layer;
each of the array-shaped photo-thermal tubes is the same and is divided into an upper part and a lower part, the diameter of the upper part is large, the diameter of the lower part is small, and the lower part is fixedly connected with the carbon fiber fabric area.
As a preferable technical scheme:
the solar-driven sea water desalination composite structure with wave energy assisted enhancement is characterized in that the dome resin area is formed by solidifying epoxy resin, the upper part of the dome resin area is mixed with low-density polystyrene foam particles, the lower part of the dome resin area is mixed with metal particles, and the upper part of the dome resin area and the polyethylene fabric area are combined into a whole; the volume ratio of the upper part to the lower part of the dome resin region is 3-5:1, wherein the dome resin region is artificially divided into the upper part and the lower part by the volume ratio;
The volume ratio of polystyrene foam particles in the upper part of the dome resin region is 60-80%, and the volume ratio of metal particles in the lower part of the dome resin region is 1.5-3.5%;
the density of the polystyrene foam particles is 0.05-0.2 g/cm 3 The dome resin region has an overall density of 0.35 to 0.7g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the When the densities of the polystyrene foam particles, the metal particles, and the epoxy resin are known, the total mass of the dome resin region can be obtained by determining the volumes of the polystyrene foam particles and the metal particles, and then dividing the total mass by the total volume can obtain the total density of the dome resin region.
The wave energy assisted enhanced solar driven sea water desalination composite structure is characterized in that the multi-layer tissue fabric area is prepared by a weaving process, the multi-layer tissue fabric area adopts carbon fiber and polyethylene multifilament as warp yarns, each layer is connected by adopting a self-binding structure, and the tightness of each layer of fabric in the multi-layer tissue fabric area is 60-75%.
According to the solar-driven sea water desalination composite structure with wave energy assisted enhancement, any one of the array-shaped light-emitting tubes is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the upper part of the light-emitting tube is sequentially provided with the plastic thin rod (preferably an elastic plastic rod, vibration can occur to the elastic plastic rod, the moving frequency of the light-emitting tube is high, evaporation is more effective), carbon fiber filaments and carbon fiber woven tubes are not woven, and the lower part of the light-emitting tube is sequentially provided with the plastic thin rod and the carbon fiber woven tubes from inside to outside;
The thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the upper part of the optical heat pipe is 70-80% of the total length of the optical heat pipe, the diameter of the upper part of the optical heat pipe is 2-5 times of the diameter of the lower part of the optical heat pipe, and the diameter of the plastic thin rod is 15-40% of the diameter of the upper part of the optical heat pipe.
The preparation method comprises the following specific steps of:
firstly, covering carbon fiber filaments used as a core layer on the surface of a plastic slender rod, then braiding carbon fiber filaments covered outside, simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the optical heat pipe;
and then, continuously weaving the carbon fiber-coated filaments, at the moment, not conveying the carbon fiber filaments used as the core layer, only enabling the carbon fiber-coated filaments to wrap the plastic thin rod, and finishing weaving one photo-thermal tube when the weaving length is equal to the length of the lower part of the photo-thermal tube.
Wherein, the total number of the carbon fiber multifilament (i.e. the carbon fiber filaments which participate in braiding) in the optical heat pipe is 24-96, and the specification of the carbon fiber is 1-24 k; the core layer is mainly used for controlling the thickness, the diameter of the upper part of the required photo-thermal tube is achieved, and the specific number and specification are not particularly required.
The wave energy assisted enhanced solar driven seawater desalination composite structure comprises the following steps: firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then solidifying to enable the two to be solidified into a whole, so that the wave energy assisted enhanced solar driven sea water desalination composite structure is prepared.
The wave energy assisted enhanced solar driven sea water desalination composite structure has the preparation process that the multilayer tissue fabric embedded with the array-shaped photo-thermal tube comprises the following steps: arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using self-binding structures, wherein the carbon fiber filaments are used as weft yarns when weaving a carbon fiber fabric region, the polyethylene multifilament is used as weft yarns when weaving a polyethylene fabric region, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric region and the polyethylene fabric region; meanwhile, in the weaving process, a plurality of photo-thermal pipes are inserted along the thickness direction of the fabric, the photo-thermal pipes are perpendicular to the plane of the fabric, a partial area of the lower part of each photo-thermal pipe is embedded into a carbon fiber fabric area, and other areas are positioned outside the multi-layer tissue fabric.
The wave energy assisted enhanced solar driven sea water desalination composite structure has the polyethylene fabric area accounting for 30-60% in the epoxy resin.
The invention also provides application of the wave energy assisted enhanced solar driven seawater desalination composite structure, the wave energy assisted enhanced solar driven seawater desalination composite structure is placed in seawater, aqueous solution is conveyed to the whole fabric along pores among fibers, and under the irradiation of sunlight, a carbon fiber area and an array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, unstable swing can be presented under the impact of waves, and the evaporation of water is accelerated.
As a preferable technical scheme:
for the applications described above, the horizontal plane is in the area of the polyethylene fabric and in the area where the epoxy is not cured.
In the application, under the condition of standard simulated sunlight, other conditions are unchanged, the water vapor generation rate is improved by more than 50% when the sea water wave is of the level 1-3 compared with the water vapor generation rate when the sea water wave is not in the sea water wave, and the water vapor generation rate is 2.32-2.57 kg/(m) 2 H) the intensity of a standard simulated solar light is 1kW/m 2 。
The principle of the invention:
the carbon fiber has high-efficiency photo-thermal conversion capability, and the absorption capability of the carbon fiber to sunlight reaches more than 90 percent, so that the carbon fiber is an excellent photo-thermal material. The composite structure for sea water desalination provided by the invention is self-floating realized by a low-density resin area, the transport of sea water is realized by polyethylene multifilament, and the carbon fiber converts absorbed sunlight into heat energy so as to generate water vapor in sea water. The composite structure is placed in seawater, the water level is in a polyethylene area, the capillary effect of the polyethylene multifilament and the carbon fiber multifilament enables the seawater to be distributed in the whole area, and the low heat conductivity coefficient of the polyethylene also reduces the conduction of heat in the carbon fiber area to the seawater; moreover, the bottom of the carbon fiber photo-thermal tube is embedded into the carbon fiber multifilament region, and the seawater is also transported on the surface of the carbon fiber photo-thermal tube. In addition, the angle of sunlight changes in real time, the effective absorption of sunlight at all angles is realized by the three-dimensional composite structure, particularly the array-shaped photo-thermal tube, and particularly the reflection loss of the two-dimensional photo-thermal body when the angle of sunlight is very small is compensated. Meanwhile, the epoxy resin region mixed with the low-density foam particles has large buoyancy, so that the integral floating of the composite structure can be realized.
Moreover, the dome resin area of the composite structure is in a dome shape, when the composite structure is impacted by sea waves, the composite structure can swing greatly, and particularly, the dome-shaped arc exists, so that the composite structure can swing more easily under the impact of the sea waves; meanwhile, because the bottom of the dome resin region is mixed with metal particles, the dome resin region has a tumbler structure with light top and heavy bottom, and greatly swings and reduces the risk of overturning; the array-shaped photo-thermal tube has the advantages that the upper part is large in diameter and weight, the lower part is small in diameter and weight, and the plastic rod is wrapped in the middle, so that the array-shaped photo-thermal tube can swing along with the multi-layer fabric at the bottom, and the upper part can vibrate greatly along the axis of the array-shaped photo-thermal tube due to the structure of heavy top and light bottom, and the movement can accelerate the airflow disturbance of seawater on the surface of the carbon fiber and the evaporation rate of water.
The solar-driven sea water desalination composite structure assisted by wave energy provided by the invention effectively utilizes the photo-thermal property of carbon fiber, combines woven fabric and braided fabric into a whole, and prepares a composite material; importantly, the wave energy is used as auxiliary energy to realize the enhancement generation of steam, the generation of steam can be enhanced by introducing the wave energy no matter under the condition of sunlight or not, and the synergistic effect of two natural energy sources is realized.
Advantageous effects
(1) According to the wave energy assisted enhanced solar driven seawater desalination composite structure, the composite structure is designed, so that the three-dimensional photo-thermal fabric can realize self-floating and can realize effective absorption of sunlight at any angle.
(2) According to the wave energy assisted enhanced solar driven seawater desalination composite structure, wave energy is converted into mechanical motion of a photo-thermal material, so that the airflow velocity of an interface is accelerated, and the generation rate of water vapor is enhanced; especially, the design of the tumbler structure enhances the risk of the composite structure against overturning and further increases the swing amplitude of the photo-thermal material.
(3) According to the solar-driven sea water desalination composite structure with wave energy assisted enhancement, due to the fact that any carbon fiber tube of the array-shaped photo-thermal tube is heavy at the top and light at the bottom, when a lower light rod is driven, a region with heavy weight at the upper part generates relatively large-amplitude elastic vibration, and therefore steam generation is accelerated.
Drawings
FIG. 1 is a schematic view of a wave energy assisted enhanced solar driven desalination composite structure of the present invention;
FIG. 2 is a side view of a wave energy assisted enhanced solar driven desalination composite structure of the present invention;
Wherein, the resin area of 1-dome, 2-polyethylene fabric area, 3-carbon fiber fabric area, 4-plastic thin rod, 5-photo-thermal tube, 6-carbon fiber fabric area and polyethylene fabric area's junction, 7-polystyrene foam particle, 8-metal particle.
Detailed Description
The invention is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
Specific information on part of the raw materials in the examples is as follows:
polyethylene multifilament yarn: the manufacturer is Jiangsu constant force chemical fiber stockThe limited company is produced by taking polyethylene particles with the brand of MLPE-2010 as raw materials, wherein the manufacturer is a petrochemical industry limited company with a name of China petrochemical group; the density of the multifilament yarn is 1000 denier, the linear density of the monofilament yarn is 1.67 denier, and the density is 0.93g/cm 3 。
The carbon fiber brand was from eastern japan, inc;
metal particles: iron spherical particles with the diameter of 5mm are purchased from Xindun alloy welding materials of Nanguo city, spraying limited company;
Plastic thin rod: polyvinyl chloride plastic rods purchased from Shenzhen City Chenpi plastic products Co., ltd;
polystyrene foam particles are purchased from the gallery baster energy saving building materials limited company;
epoxy resin: the manufacturer is Baling petrochemical industry Limited liability company, and the brand is 6101; the curing agent of the epoxy resin is produced by Guangdong, new Material Co., ltd, with the trade mark of 9410; the epoxy resin curing process comprises the following steps: mixing epoxy resin and curing agent in the weight ratio of 2:1, stirring uniformly, removing bubbles by using a vacuum deaeration machine, then injecting into a mould, and standing at room temperature (25 ℃) for more than 2 hours.
Example 1
The preparation method of the solar-driven sea water desalination composite structure assisted by wave energy comprises the following specific steps as shown in figures 1-2:
(1) Preparing a photo-thermal tube 5;
covering the surface of the plastic thin rod 4 with carbon fiber filaments used as a core layer, then braiding the carbon fiber filaments covered outside, simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the optical heat pipe 5; next, knitting of the carbon fiber-coated filaments is continued, at this time, the carbon fiber filaments used as the core layer are not conveyed, only the carbon fiber-coated filaments are made to wrap the plastic thin rod 4, and when the knitting length is equal to the length of the lower part of the photo-thermal tubes 5, the knitting of one photo-thermal tube 5 is completed;
The prepared optical heat pipe 5 is a carbon fiber woven tubular object with a plastic thin rod 4 wrapped in the middle, the optical heat pipe 5 is divided into an upper part and a lower part, the upper part of the optical heat pipe 5 is sequentially provided with the plastic thin rod 4, the non-woven carbon fiber filaments and the carbon fiber woven pipe from inside to outside, and the lower part of the optical heat pipe 5 is sequentially provided with the plastic thin rod 4 and the carbon fiber woven pipe from inside to outside; the total number of carbon fibers in the carbon fiber woven tube is 24, and the specification of the carbon fibers is 24k; the thickness of the carbon fiber wrapped on the upper part of the photo-thermal tube 5 is larger than that of the carbon fiber wrapped on the lower part; the upper part of the optical heat pipe 5 is 3cm in length and accounts for 70% of the total length of the optical heat pipe 5, the diameter of the upper part of the optical heat pipe 5 is 6mm and is 5 times of the diameter of the lower part of the optical heat pipe 5, and the diameter of the plastic thin rod 4 accounts for 15% of the diameter of the upper part of the optical heat pipe 5;
(2) Preparing a multi-layer tissue fabric embedded with array-shaped photo-thermal pipes;
arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using a self-binding structure through a weaving process, wherein the carbon fiber filaments are used as weft yarns when weaving the carbon fiber fabric region 3, the polyethylene multifilament is used as weft yarns when weaving the polyethylene fabric region 2, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric region 3 and the polyethylene fabric region 2 (namely, the connecting part 6 of the carbon fiber fabric region and the polyethylene fabric region); meanwhile, in the weaving process of the weaving technology, inserting a plurality of the photo-thermal pipes 5 prepared in the step (1) along the thickness direction of the fabric, wherein the photo-thermal pipes 5 are vertical to the plane of the fabric, and the partial area of the lower part of the photo-thermal pipes 5 is embedded with the carbon fiber fabric area 3; wherein the tightness of the carbon fiber fabric area 3 is 60%, and the tightness of the polyethylene fabric area 2 is 60%; the distribution density of the photo-thermal tube 5 prepared in the step (1) in the carbon fiber fabric area 3 is 0.6/cm 2 ；
(3) Wave energy assisted enhanced solar drive sea water desalination composite structure preparation;
firstly adding metal particles 8 into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles 7 into the epoxy resin, finally placing a part of a polyethylene fabric area 2 of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the solar-driven sea water desalination composite structure enhanced by wave energy assistance; wherein the polyethylene fabric area 2 placed in the epoxy resin accounts for 30%;
the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin region 1, a multi-layer tissue fabric region and an array-shaped photo-thermal tube from bottom to top;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area 3, and the lower part is a polyethylene fabric area 2;
the dome resin region 1 is formed by solidifying epoxy resin, is in a dome shape, the top end of the dome resin region is downward, the upper part of the dome resin region 1 is mixed with low-density polystyrene foam particles 7, the lower part of the dome resin region is mixed with metal particles 8, and the upper part of the dome resin region 1 and the polyethylene fabric region 2 are combined into a whole; the volume ratio of the upper part to the lower part of the dome resin region 1 is 3.5:1; the volume ratio of the polystyrene foam particles 7 in the upper part of the dome resin region 1 was 80%, and the volume ratio of the metal particles 8 in the lower part of the dome resin region 1 was 1.5%; the polystyrene foam particles 7 had a density of 0.05g/cm 3 The overall density of the dome resin region 1 was 0.38g/cm 3 ；
Each of the array-shaped photo-thermal pipes 5 is identical, and the lower part of each photo-thermal pipe 5 is fixedly connected with the carbon fiber fabric region 3.
Application: placing the solar-driven sea water desalination composite structure enhanced by wave energy in sea water, placing sea water to be treated in a container, wherein the horizontal plane is positioned in a polyethylene fabric area 2 and is positioned in an area without solidifying epoxy resin, simultaneously, covering a dome glass cover on the whole composite structure, wherein the middle part of the glass cover is provided with a water collecting tank, the glass cover is arranged on the container and can be detached, the bottommost part of the glass cover is level with the horizontal plane, and other areas of the top end of the container except the glass cover area are covered with plastic plates so as to prevent the water in the area from evaporating to influence the test result; under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, and the generated steam moves upwards to touch the dome of the glass cover, is condensed into liquid water, and flows back to the water collecting tank in the middle of the glass cover along the side wall of the glass cover.
Wave energy assisted augmentationThe method for testing the water vapor generation rate of the solar-driven seawater desalination composite structure in the absence of seawater waves comprises the following steps: firstly, placing a container containing seawater, a composite structure, a glass cover and a plastic plate on an electronic balance, and recording the original weight of the container; at the same time, the whole glass cover area is placed under the simulated sunlight, and the light intensity at the plane where the top end of the photo-thermal tube is positioned is adjusted to be a sunlight (1 kW/m) 2 ) The method comprises the steps of carrying out a first treatment on the surface of the Then, the weight of the whole container after 2 hours is recorded, and before the weight is recorded, the residual condensed water vapor on the glass cover is required to be wiped clean and the water in the water collecting tank is required to be removed; finally, the weight reduction value of the whole container is taken as the evaporation capacity of the water vapor, and the generation rate of the water vapor (the unit is kg/(m) is calculated according to the experimental time and the projection area of the photo-thermal fabric 2 H); the above test was repeated 10 times, and the average value of all the water vapor generation rate values was taken as the water vapor generation rate under the test conditions.
The testing method at the time of waves is basically the same as the method, and the difference is that a wave making pump is added on the basis of no-wave testing.
Through testing, the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement is used for simulating sunlight (light intensity is 1 kW/m) 2 ) The water vapor generation rate in the absence of sea waves was 2.322 kg/(m) 2 H), the water vapor generation rate at stage 1 of the sea wave is increased by 56.7% compared to that without the sea wave.
Example 2
A preparation method of a wave energy assisted enhanced solar driven sea water desalination composite structure comprises the following specific steps:
(1) Preparing a photo-thermal tube;
covering the surface of the plastic thin rod with carbon fiber filaments used as a core layer, then braiding the carbon fiber filaments covered outside, and simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the photo-thermal tube; next, continuously weaving the carbon fiber-coated filaments, at the moment, not conveying the carbon fiber filaments used as the core layer, only enabling the carbon fiber-coated filaments to wrap the plastic thin rod, and finishing weaving one photo-thermal tube when the weaving length is equal to the length of the lower part of the photo-thermal tube;
the prepared light-heat pipe is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the light-heat pipe is divided into an upper part and a lower part, the upper part of the light-heat pipe is sequentially provided with the plastic thin rod, the non-woven carbon fiber filaments and the carbon fiber woven pipe from inside to outside, and the lower part of the light-heat pipe is sequentially provided with the plastic thin rod and the carbon fiber woven pipe from inside to outside; the total number of carbon fibers in the carbon fiber woven tube is 36, and the specification of the carbon fibers is 18k; the thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the upper part of the light heat pipe is 3.5cm in length and occupies 72% of the total length of the light heat pipe, the diameter of the upper part of the light heat pipe is 5mm and is 4 times of the diameter of the lower part of the light heat pipe, and the diameter of the plastic thin rod occupies 20% of the diameter of the upper part of the light heat pipe.
(2) Preparing a multi-layer tissue fabric embedded with array-shaped photo-thermal pipes;
arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using a self-binding structure through a weaving process, wherein the carbon fiber filaments are used as weft yarns when weaving a carbon fiber fabric area, the polyethylene multifilament is used as weft yarns when weaving a polyethylene fabric area, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric area and the polyethylene fabric area; meanwhile, in the weaving process of the weaving technology, inserting a plurality of photo-thermal pipes manufactured in the step (1) along the thickness direction of the fabric, wherein the photo-thermal pipes are vertical to the plane of the fabric, and the partial area of the lower part of each photo-thermal pipe is embedded into a carbon fiber fabric area; wherein the tightness of the carbon fiber fabric area is 62%, and the tightness of the polyethylene fabric area is 64%; the distribution density of the photo-thermal tube prepared in the step (1) in the carbon fiber fabric area is 0.75/cm 2 ；
(3) Wave energy assisted enhanced solar drive sea water desalination composite structure preparation;
firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, and finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the wave energy assisted enhanced solar driven sea water desalination composite structure; wherein the polyethylene fabric area ratio placed in the epoxy resin is 40%.
The prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin area, a multi-layer tissue fabric area and an array-shaped photo-thermal tube from bottom to top;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, and the lower part is a polyethylene fabric area;
the dome resin area is formed by solidifying epoxy resin and is in a dome shape, the top end of the dome resin area faces downwards, the upper part of the dome resin area is mixed with low-density polystyrene foam particles, the lower part of the dome resin area is mixed with metal particles, and the upper part of the dome resin area and the polyethylene fabric area are combined into a whole; the volume ratio of the upper part to the lower part of the dome resin region is 3.5:1; the volume ratio of polystyrene foam particles in the upper part of the dome resin region was 60%, and the volume ratio of metal particles in the lower part of the dome resin region was 2%; the density of the polystyrene foam particles was 0.08g/cm 3 The overall density of the dome resin region was 0.62g/cm 3 ；
Each of the array-shaped photo-thermal tubes is identical, and the lower part of each photo-thermal tube is fixedly connected with the carbon fiber fabric area.
Application: placing the solar-driven sea water desalination composite structure enhanced by wave energy in sea water, placing sea water to be treated in a container, wherein the horizontal plane is positioned in a polyethylene fabric area and is positioned in an area without solidifying epoxy resin, simultaneously covering a dome glass cover on the whole composite structure, wherein the middle part of the glass cover is provided with a water collecting tank, the glass cover is arranged on the container and can be detached, the bottommost part of the glass cover is level to the horizontal plane, and other areas of the top end of the container except the glass cover area are covered with plastic plates so as to prevent the water in the area from evaporating to influence the test result; under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, and the generated steam moves upwards to touch the dome of the glass cover, is condensed into liquid water, and flows back to the water collecting tank in the middle of the glass cover along the side wall of the glass cover.
The wave energy assisted enhanced solar driven seawater desalination composite structure is the same as the method for testing the water vapor generation rate of the seawater wave without seawater wave in the embodiment 1.
Through testing, the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement is used for simulating sunlight (light intensity is 1 kW/m) 2 ) The water vapor generation rate in the absence of sea waves was 2.327 kg/(m) 2 H), the water vapor generation rate at stage 1 of the sea wave is increased by 51.2% compared to that without the sea wave.
Example 3
A preparation method of a wave energy assisted enhanced solar driven sea water desalination composite structure comprises the following specific steps:
(1) Preparing a photo-thermal tube;
covering the surface of the plastic thin rod with carbon fiber filaments used as a core layer, then braiding the carbon fiber filaments covered outside, and simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the photo-thermal tube; next, continuously weaving the carbon fiber-coated filaments, at the moment, not conveying the carbon fiber filaments used as the core layer, only enabling the carbon fiber-coated filaments to wrap the plastic thin rod, and finishing weaving one photo-thermal tube when the weaving length is equal to the length of the lower part of the photo-thermal tube;
The prepared light-heat pipe is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the light-heat pipe is divided into an upper part and a lower part, the upper part of the light-heat pipe is sequentially provided with the plastic thin rod, the non-woven carbon fiber filaments and the carbon fiber woven pipe from inside to outside, and the lower part of the light-heat pipe is sequentially provided with the plastic thin rod and the carbon fiber woven pipe from inside to outside; the total number of carbon fibers in the carbon fiber woven tube is 48, and the specification of the carbon fibers is 12k; the thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the length of the upper part of the photo-thermal tube is 3.5cm, which accounts for 74% of the total length of the photo-thermal tube, the diameter of the upper part of the photo-thermal tube is 5mm, which is 3 times of the diameter of the lower part of the photo-thermal tube, and the diameter of the plastic thin rod accounts for 25% of the diameter of the upper part of the photo-thermal tube;
(2) Preparing a multi-layer tissue fabric embedded with array-shaped photo-thermal pipes;
arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using a self-binding structure through a weaving process, wherein the carbon fiber filaments are used as weft yarns when weaving a carbon fiber fabric area, the polyethylene multifilament is used as weft yarns when weaving a polyethylene fabric area, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric area and the polyethylene fabric area; meanwhile, in the weaving process of the weaving technology, inserting a plurality of photo-thermal pipes manufactured in the step (1) along the thickness direction of the fabric, wherein the photo-thermal pipes are vertical to the plane of the fabric, and the partial area of the lower part of each photo-thermal pipe is embedded into a carbon fiber fabric area; wherein the tightness of the carbon fiber fabric area is 64%, and the tightness of the polyethylene fabric area is 66%; the distribution density of the photo-thermal tube prepared in the step (1) in the carbon fiber fabric area is 0.9/cm 2 ；
(3) Wave energy assisted enhanced solar drive sea water desalination composite structure preparation;
firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, and finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the wave energy assisted enhanced solar driven sea water desalination composite structure; wherein the polyethylene fabric area placed in the epoxy resin accounts for 45%;
the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin area, a multi-layer tissue fabric area and an array-shaped photo-thermal tube from bottom to top;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, and the lower part is a polyethylene fabric area;
the dome resin region is formed by solidifying epoxy resin, has a dome shape with downward top end, and has low density polystyrene mixed in upper partThe lower part of the vinyl foam particles is mixed with metal particles, and the upper part of the dome resin region is combined with the polyethylene fabric region into a whole; the volume ratio of the upper part to the lower part of the dome resin region is 4:1; the volume ratio of polystyrene foam particles in the upper part of the dome resin region was 75%, and the volume ratio of metal particles in the lower part of the dome resin region was 2.5%; the density of the polystyrene foam particles was 0.2g/cm 3 The overall density of the dome resin region was 0.66g/cm 3 ；
Each of the array-shaped photo-thermal tubes is identical, and the lower part of each photo-thermal tube is fixedly connected with the carbon fiber fabric area.
Application: placing the solar-driven sea water desalination composite structure enhanced by wave energy in sea water, placing sea water to be treated in a container, wherein the horizontal plane is positioned in a polyethylene fabric area and is positioned in an area without solidifying epoxy resin, simultaneously covering a dome glass cover on the whole composite structure, wherein the middle part of the glass cover is provided with a water collecting tank, the glass cover is arranged on the container and can be detached, the bottommost part of the glass cover is level to the horizontal plane, and other areas of the top end of the container except the glass cover area are covered with plastic plates so as to prevent the water in the area from evaporating to influence the test result; under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, and the generated steam moves upwards to touch the dome of the glass cover, is condensed into liquid water, and flows back to the water collecting tank in the middle of the glass cover along the side wall of the glass cover.
The wave energy assisted enhanced solar driven seawater desalination composite structure is the same as the method for testing the water vapor generation rate of the seawater wave without seawater wave in the embodiment 1.
Through testing, the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement is used for simulating sunlight (light intensity is 1 kW/m) 2 ) The water vapor generation rate in the absence of sea waves was 2.333 kg/(m) 2 H), the water vapor generation rate is increased by 75.1% when the sea wave is level 2 compared to when no sea wave is present.
Example 4
A preparation method of a wave energy assisted enhanced solar driven sea water desalination composite structure comprises the following specific steps:
(1) Preparing a photo-thermal tube;
covering the surface of the plastic thin rod with carbon fiber filaments used as a core layer, then braiding the carbon fiber filaments covered outside, and simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the photo-thermal tube; next, continuously weaving the carbon fiber-coated filaments, at the moment, not conveying the carbon fiber filaments used as the core layer, only enabling the carbon fiber-coated filaments to wrap the plastic thin rod, and finishing weaving one photo-thermal tube when the weaving length is equal to the length of the lower part of the photo-thermal tube;
the prepared light-heat pipe is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the light-heat pipe is divided into an upper part and a lower part, the upper part of the light-heat pipe is sequentially provided with the plastic thin rod, the non-woven carbon fiber filaments and the carbon fiber woven pipe from inside to outside, and the lower part of the light-heat pipe is sequentially provided with the plastic thin rod and the carbon fiber woven pipe from inside to outside; the total number of carbon fibers in the carbon fiber woven tube is 72, and the specification of the carbon fibers is 6k; the thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the upper part of the optical heat pipe is 4.5cm in length and occupies 76% of the total length of the optical heat pipe, the diameter of the upper part of the optical heat pipe is 5.5mm and is 2 times of that of the lower part of the optical heat pipe, and the diameter of the plastic thin rod occupies 30% of that of the upper part of the optical heat pipe;
(2) Preparing a multi-layer tissue fabric embedded with array-shaped photo-thermal pipes;
arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using a self-binding structure through a weaving process, wherein the carbon fiber filaments are used as weft yarns when weaving a carbon fiber fabric area, the polyethylene multifilament is used as weft yarns when weaving a polyethylene fabric area, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric area and the polyethylene fabric area; meanwhile, in the weaving process of the weaving technology, a plurality of photo-thermal pipes manufactured in the step (1) are inserted along the thickness direction of the fabric, the photo-thermal pipes are vertical to the plane of the fabric, and the carbon fiber fabric is embedded in a local area of the lower part of the photo-thermal pipesAn object region; wherein the tightness of the carbon fiber fabric area is 66%, and the tightness of the polyethylene fabric area is 70%; the distribution density of the photo-thermal tube prepared in the step (1) in the carbon fiber fabric area is 1.1/cm 2 ；
(3) Wave energy assisted enhanced solar drive sea water desalination composite structure preparation;
firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, and finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the wave energy assisted enhanced solar driven sea water desalination composite structure; wherein the polyethylene fabric area ratio placed in the epoxy resin is 50%;
The prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin area, a multi-layer tissue fabric area and an array-shaped photo-thermal tube from bottom to top;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, and the lower part is a polyethylene fabric area;
the dome resin area is formed by solidifying epoxy resin and is in a dome shape, the top end of the dome resin area faces downwards, the upper part of the dome resin area is mixed with low-density polystyrene foam particles, the lower part of the dome resin area is mixed with metal particles, and the upper part of the dome resin area and the polyethylene fabric area are combined into a whole; the volume ratio of the upper part to the lower part of the dome resin region is 4.5:1; the volume ratio of polystyrene foam particles in the upper part of the dome resin region was 70%, and the volume ratio of metal particles in the lower part of the dome resin region was 1.6%; the density of the polystyrene foam particles was 0.12g/cm 3 The overall density of the dome resin region was 0.55g/cm 3 ；
Each of the array-shaped photo-thermal tubes is identical, and the lower part of each photo-thermal tube is fixedly connected with the carbon fiber fabric area.
Application: placing the solar-driven sea water desalination composite structure enhanced by wave energy in sea water, placing sea water to be treated in a container, wherein the horizontal plane is positioned in a polyethylene fabric area and is positioned in an area without solidifying epoxy resin, simultaneously covering a dome glass cover on the whole composite structure, wherein the middle part of the glass cover is provided with a water collecting tank, the glass cover is arranged on the container and can be detached, the bottommost part of the glass cover is level to the horizontal plane, and other areas of the top end of the container except the glass cover area are covered with plastic plates so as to prevent the water in the area from evaporating to influence the test result; under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, and the generated steam moves upwards to touch the dome of the glass cover, is condensed into liquid water, and flows back to the water collecting tank in the middle of the glass cover along the side wall of the glass cover.
The wave energy assisted enhanced solar driven seawater desalination composite structure is the same as the method for testing the water vapor generation rate of the seawater wave without seawater wave in the embodiment 1.
Through testing, the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement is used for simulating sunlight (light intensity is 1 kW/m) 2 ) The water vapor generation rate in the absence of sea waves was 2.342 kg/(m) 2 H), the water vapor generation rate is increased by 77.3% when the sea wave is level 2 compared to when no sea wave is present.
Example 5
A preparation method of a wave energy assisted enhanced solar driven sea water desalination composite structure comprises the following specific steps:
(1) Preparing a photo-thermal tube;
covering the surface of the plastic thin rod with carbon fiber filaments used as a core layer, then braiding the carbon fiber filaments covered outside, and simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the photo-thermal tube; next, continuously weaving the carbon fiber-coated filaments, at the moment, not conveying the carbon fiber filaments used as the core layer, only enabling the carbon fiber-coated filaments to wrap the plastic thin rod, and finishing weaving one photo-thermal tube when the weaving length is equal to the length of the lower part of the photo-thermal tube;
The prepared light-heat pipe is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the light-heat pipe is divided into an upper part and a lower part, the upper part of the light-heat pipe is sequentially provided with the plastic thin rod, the non-woven carbon fiber filaments and the carbon fiber woven pipe from inside to outside, and the lower part of the light-heat pipe is sequentially provided with the plastic thin rod and the carbon fiber woven pipe from inside to outside; the total number of carbon fibers in the carbon fiber woven tube is 96, and the specification of the carbon fibers is 3k; the thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the length of the upper part of the light heat pipe is 5cm, which accounts for 78% of the total length of the light heat pipe, the diameter of the upper part of the light heat pipe is 5.5mm, which is 2 times of the diameter of the lower part, and the diameter of the plastic thin rod accounts for 35% of the diameter of the upper part of the light heat pipe;
(2) Preparing a multi-layer tissue fabric embedded with array-shaped photo-thermal pipes;
arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using a self-binding structure through a weaving process, wherein the carbon fiber filaments are used as weft yarns when weaving a carbon fiber fabric area, the polyethylene multifilament is used as weft yarns when weaving a polyethylene fabric area, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric area and the polyethylene fabric area; meanwhile, in the weaving process of the weaving technology, a plurality of photo-thermal pipes manufactured in the step (1) are inserted along the thickness direction of the fabric, the photo-thermal pipes are vertical to the plane of the fabric, and a partial area of the lower part of each photo-thermal pipe is embedded into a carbon fiber fabric area; wherein the tightness of the carbon fiber fabric area is 70%, and the tightness of the polyethylene fabric area is 75%; the distribution density of the photo-thermal tube prepared in the step (1) in the carbon fiber fabric area is 1.2/cm 2 ；
(3) Wave energy assisted enhanced solar drive sea water desalination composite structure preparation;
firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, and finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the wave energy assisted enhanced solar driven sea water desalination composite structure; wherein the polyethylene fabric area ratio placed in the epoxy resin is 55%;
the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin area, a multi-layer tissue fabric area and an array-shaped photo-thermal tube from bottom to top;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, and the lower part is a polyethylene fabric area;
the dome resin area is formed by solidifying epoxy resin and is in a dome shape, the top end of the dome resin area faces downwards, the upper part of the dome resin area is mixed with low-density polystyrene foam particles, the lower part of the dome resin area is mixed with metal particles, and the upper part of the dome resin area and the polyethylene fabric area are combined into a whole; the volume ratio of the upper part to the lower part of the dome resin region is 4.5:1; the volume ratio of polystyrene foam particles in the upper part of the dome resin region was 76%, and the volume ratio of metal particles in the lower part of the dome resin region was 3.5%; the density of the polystyrene foam particles is 0.06g/cm 3 The overall density of the dome resin region was 0.56g/cm 3 ；
Each of the array-shaped photo-thermal tubes is identical, and the lower part of each photo-thermal tube is fixedly connected with the carbon fiber fabric area.
Application: placing the solar-driven sea water desalination composite structure enhanced by wave energy in sea water, placing sea water to be treated in a container, wherein the horizontal plane is positioned in a polyethylene fabric area and is positioned in an area without solidifying epoxy resin, simultaneously covering a dome glass cover on the whole composite structure, wherein the middle part of the glass cover is provided with a water collecting tank, the glass cover is arranged on the container and can be detached, the bottommost part of the glass cover is level to the horizontal plane, and other areas of the top end of the container except the glass cover area are covered with plastic plates so as to prevent the water in the area from evaporating to influence the test result; under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, and the generated steam moves upwards to touch the dome of the glass cover, is condensed into liquid water, and flows back to the water collecting tank in the middle of the glass cover along the side wall of the glass cover.
The wave energy assisted enhanced solar driven seawater desalination composite structure is the same as the method for testing the water vapor generation rate of the seawater wave without seawater wave in the embodiment 1.
Through testing, the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement is used for simulating sunlight (light intensity is 1 kW/m) 2 ) The water vapor generation rate in the absence of sea waves was 2.509 kg/(m) 2 H), the water vapor generation rate at stage 3 of the sea wave is increased by 93.8% compared to that without the sea wave.
Example 6
A preparation method of a wave energy assisted enhanced solar driven sea water desalination composite structure comprises the following specific steps:
(1) Preparing a photo-thermal tube;
covering the surface of the plastic thin rod with carbon fiber filaments used as a core layer, then braiding the carbon fiber filaments covered outside, and simultaneously conveying the carbon fiber filaments used as the core layer, and cutting off all the carbon fiber filaments positioned in the core layer when the braided length reaches the length of the upper part of the photo-thermal tube; next, continuously weaving the carbon fiber-coated filaments, at the moment, not conveying the carbon fiber filaments used as the core layer, only enabling the carbon fiber-coated filaments to wrap the plastic thin rod, and finishing weaving one photo-thermal tube when the weaving length is equal to the length of the lower part of the photo-thermal tube;
the prepared light-heat pipe is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the light-heat pipe is divided into an upper part and a lower part, the upper part of the light-heat pipe is sequentially provided with the plastic thin rod, the non-woven carbon fiber filaments and the carbon fiber woven pipe from inside to outside, and the lower part of the light-heat pipe is sequentially provided with the plastic thin rod and the carbon fiber woven pipe from inside to outside; the total number of carbon fibers in the carbon fiber woven tube is 96, and the specification of the carbon fibers is 1k; the thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the upper part of the optical heat pipe is 5.5cm in length and accounts for 80% of the total length of the optical heat pipe, the diameter of the upper part of the optical heat pipe is 4.5mm and is 2 times that of the lower part of the optical heat pipe, and the diameter of the plastic thin rod accounts for 40% of that of the upper part of the optical heat pipe;
(2) Preparing a multi-layer tissue fabric embedded with array-shaped photo-thermal pipes;
growing carbon fiberThe filaments and the polyethylene multifilament are arranged on the upper side according to the carbon fiber filaments, the polyethylene multifilament is arranged under the lower side, the self-binding structure is used for weaving by a weaving process, the carbon fiber filaments are used as weft yarns when the carbon fiber fabric region is woven, the polyethylene multifilament is used as weft yarns when the polyethylene fabric region is woven, and the polyethylene multifilament is used as weft yarns when the carbon fiber fabric region and the polyethylene fabric region are connected; meanwhile, in the weaving process of the weaving technology, inserting a plurality of photo-thermal pipes manufactured in the step (1) along the thickness direction of the fabric, wherein the photo-thermal pipes are vertical to the plane of the fabric, and the partial area of the lower part of each photo-thermal pipe is embedded into a carbon fiber fabric area; wherein the tightness of the carbon fiber fabric area is 75%, and the tightness of the polyethylene fabric area is 75%; the distribution density of the photo-thermal tube prepared in the step (1) in the carbon fiber fabric area is 1.5/cm 2 ；
(3) Wave energy assisted enhanced solar drive sea water desalination composite structure preparation;
firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, and finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the wave energy assisted enhanced solar driven sea water desalination composite structure; wherein the polyethylene fabric area ratio placed in the epoxy resin is 60%;
The prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement sequentially comprises a dome resin area, a multi-layer tissue fabric area and an array-shaped photo-thermal tube from bottom to top;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, and the lower part is a polyethylene fabric area;
the dome resin area is formed by solidifying epoxy resin and is in a dome shape, the top end of the dome resin area faces downwards, the upper part of the dome resin area is mixed with low-density polystyrene foam particles, the lower part of the dome resin area is mixed with metal particles, and the upper part of the dome resin area and the polyethylene fabric area are combined into a whole; the volume ratio of the upper part to the lower part of the dome resin region is 5:1; in the upper part of the dome resin regionThe volume ratio of the polystyrene foam particles was 80%, and the volume ratio of the metal particles in the lower portion of the dome resin region was 2.2%; the density of the polystyrene foam particles is 0.05g/cm 3 The overall density of the dome resin region was 0.43g/cm 3 ；
Each of the array-shaped photo-thermal tubes is identical, and the lower part of each photo-thermal tube is fixedly connected with the carbon fiber fabric area.
Application: placing the solar-driven sea water desalination composite structure enhanced by wave energy in sea water, placing sea water to be treated in a container, wherein the horizontal plane is positioned in a polyethylene fabric area and is positioned in an area without solidifying epoxy resin, simultaneously covering a dome glass cover on the whole composite structure, wherein the middle part of the glass cover is provided with a water collecting tank, the glass cover is arranged on the container and can be detached, the bottommost part of the glass cover is level to the horizontal plane, and other areas of the top end of the container except the glass cover area are covered with plastic plates so as to prevent the water in the area from evaporating to influence the test result; under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tube are heated, so that the seawater on the surface of the carbon fiber area and the array-shaped photo-thermal tube is evaporated into steam, and the generated steam moves upwards to touch the dome of the glass cover, is condensed into liquid water, and flows back to the water collecting tank in the middle of the glass cover along the side wall of the glass cover.
The wave energy assisted enhanced solar driven seawater desalination composite structure is the same as the method for testing the water vapor generation rate of the seawater wave without seawater wave in the embodiment 1.
Through testing, the prepared solar-driven sea water desalination composite structure with wave energy assisted enhancement is used for simulating sunlight (light intensity is 1 kW/m) 2 ) The water vapor generation rate in the absence of sea waves was 2.568 kg/(m) 2 H), the water vapor generation rate is increased by 105% when the sea wave is level 3 compared to when no sea wave is present.

Claims (7)

1. A solar drive sea water desalination composite construction that wave energy is supplementary to be strengthened which characterized in that: the device comprises a dome resin region, a multi-layer tissue fabric region and an array-shaped photo-thermal tube from bottom to top in sequence;
the dome resin region is in a dome shape, and the top end of the dome resin region faces downwards; the dome resin region has a density lower than that of water;
the multi-layer tissue fabric area consists of an upper part and a lower part which are fixedly connected, wherein the upper part is a carbon fiber fabric area, and the lower part is a polyethylene fabric area;
any one of the array-shaped photo-thermal pipes is divided into an upper part and a lower part, the diameter of the upper part is large, the diameter of the lower part is small, and the lower part is fixedly connected with a carbon fiber fabric area;
any one of the array-shaped photo-thermal tubes is a carbon fiber woven tubular object with a plastic thin rod wrapped in the middle, the upper part of the photo-thermal tube is sequentially provided with the plastic thin rod, the non-woven carbon fiber filaments and the carbon fiber woven tube from inside to outside, and the lower part of the photo-thermal tube is sequentially provided with the plastic thin rod and the carbon fiber woven tube from inside to outside;
The thickness of the carbon fiber wrapped by the upper part of the photo-thermal tube is larger than that of the carbon fiber wrapped by the lower part of the photo-thermal tube; the upper part of the optical heat pipe is 70-80% of the total length of the optical heat pipe, the diameter of the upper part of the optical heat pipe is 2-5 times of the diameter of the lower part of the optical heat pipe, and the diameter of the plastic thin rod is 15-40% of the diameter of the upper part of the optical heat pipe;
the preparation method of the solar-driven sea water desalination composite structure assisted by wave energy comprises the following steps: firstly adding metal particles into a dome-shaped container, then adding epoxy resin, then adding polystyrene foam particles into the epoxy resin, and finally placing a part of a polyethylene fabric area of the multi-layer tissue fabric embedded with the array-shaped photo-thermal tube into the epoxy resin, and then curing to obtain the wave energy assisted enhanced solar driven sea water desalination composite structure;
the preparation process of the multilayer tissue fabric embedded with the array-shaped photo-thermal tube comprises the following steps: arranging carbon fiber filaments and polyethylene multifilament at the upper part according to the carbon fiber filaments, arranging the polyethylene multifilament at the lower part, weaving by using self-binding structures, wherein the carbon fiber filaments are used as weft yarns when weaving a carbon fiber fabric region, the polyethylene multifilament is used as weft yarns when weaving a polyethylene fabric region, and the polyethylene multifilament is used as weft yarns when connecting the carbon fiber fabric region and the polyethylene fabric region; meanwhile, in the weaving process, a plurality of photo-thermal pipes are inserted along the thickness direction of the fabric, the photo-thermal pipes are perpendicular to the plane of the fabric, and a partial area of the lower part of each photo-thermal pipe is embedded into a carbon fiber fabric area.
2. The wave energy assisted enhanced solar driven desalination composite structure of claim 1 wherein the dome resin region is cured from epoxy resin, the upper portion of the dome resin region is mixed with low density polystyrene foam particles, the lower portion is mixed with metal particles, and the upper portion of the dome resin region is integrally combined with the polyethylene fabric region; the volume ratio of the upper part to the lower part of the dome resin region is 3-5:1;
the volume ratio of polystyrene foam particles in the upper part of the dome resin region is 60-80%, and the volume ratio of metal particles in the lower part of the dome resin region is 1.5-3.5%;
the density of the polystyrene foam particles is 0.05-0.2 g/cm 3 The dome resin region has an overall density of 0.35 to 0.7g/cm 3 。
3. The wave energy assisted enhanced solar driven desalination composite structure of claim 2 wherein the multi-layer weave fabric region is prepared by a weaving process, each layer of fabric in the multi-layer weave fabric region having a tightness of 60-75%.
4. A wave energy assisted enhanced solar driven desalination composite structure according to claim 2 wherein the polyethylene fabric area is placed in the epoxy resin at a ratio of 30-60%.
5. Use of a wave energy assisted enhanced solar driven desalination composite structure as defined in any one of claims 1 to 4 wherein: the solar-driven sea water desalination composite structure enhanced by wave energy is placed in sea water, and under the irradiation of sunlight, the carbon fiber area and the array-shaped photo-thermal tubes are heated, so that the sea water on the surface of the composite structure is evaporated into steam.
6. The use according to claim 5, wherein the horizontal plane is in the area of the polyethylene fabric and in the area of the uncured epoxy resin.
7. The use according to claim 6, wherein the water vapor generation rate is increased by more than 50% in the case of sea waves of 1 to 3 stages under a standard simulated solar light of 1kW/m as compared with the case of no sea waves, the light intensity of the standard simulated solar light is 1kW/m 2 。
CN202310436657.1A 2023-04-23 2023-04-23 Wave energy assisted enhanced solar driven seawater desalination composite structure and application thereof Active CN116177650B (en)

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