CN207016517U - A kind of new type solar energy photo-thermal seawater evaporator - Google Patents

A kind of new type solar energy photo-thermal seawater evaporator Download PDF

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Publication number
CN207016517U
CN207016517U CN201720433722.5U CN201720433722U CN207016517U CN 207016517 U CN207016517 U CN 207016517U CN 201720433722 U CN201720433722 U CN 201720433722U CN 207016517 U CN207016517 U CN 207016517U
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hydrophily
seawater
photothermal deformation
fabric
sides
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陈志钢
刘子潇
张丽莎
朱美芳
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Donghua University
National Dong Hwa University
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Donghua University
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    • 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
    • C02F1/08—Thin film evaporation
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Photovoltaic Devices (AREA)

Abstract

It the utility model is related to a kind of new type solar energy photo-thermal seawater evaporator, including the contour water tank in both sides, hydrophily photothermal deformation fabric and concentrate collecting box, hydrophily photothermal deformation fabric is layed on the water tank of both sides respectively, the both ends of hydrophily photothermal deformation fabric are respectively placed in the water tank of both sides and are immersed in below seawater face, hydrophily photothermal deformation fabric between the water tank of both sides is in recessed arc, it is the photothermal deformation area containing optical-thermal conversion material in the middle part of hydrophily photothermal deformation fabric, concentrate collecting box is correspondingly arranged in the lower section of arc minimum point in the middle part of hydrophily photothermal deformation fabric.The utility model realizes the high-efficiency evaporating of seawater using solar energy resources, reduces cost, improves evaporation of seawater efficiency, avoids salt in seawater and analyze.

Description

A kind of new type solar energy photo-thermal seawater evaporator
Technical field
The utility model belongs to the technical field of evaporation of seawater, more particularly to a kind of new type solar energy photo-thermal evaporation of seawater Device.
Background technology
Seawater occupies the area of earth surface more than 70%, is one of resource most abundant on the earth.However, compared to Abundant seawater resources, fresh water only accounts for the 2.8% of whole water resources on the earth, wherein also 68.69% fresh water be mothballed with In the permanent glacier in the area such as terrestrial pole, plateau and snow mountain, fresh water is in short supply to turn into universally acknowledged most one of stern challenge. It is to produce fresh water using seawater desalination to overcome the optimal approach of this problem, in order to reach this purpose, it has been developed that A variety of desalination technologies, including sea water by distillation, electrodialysis, osmosis filtration technology etc..These methods mostly need directly or A large amount of fossil energies are consumed indirectly, are improved cost and can be caused environmental pressure.Carrying out sea water by distillation using solar energy can break away from The consumption of fossil energy, has attracted people greatly to pay close attention in desalting process.
Before bimillennium, ancients just utilize direct irradiation of sunlight preparing salt by working up seawater, and in this way, sunshine makes profit Evaporation rate is accelerated in seawater heating, however, sunshine will be carried out uniformly to all seawater under certain thickness in this case Heating, seawater heating unobvious, effect are poor.In order to improve the utilization rate of sunshine, accelerate evaporation of seawater speed, people utilize Photo-thermal nano material and matrix material are mutually compound, are prepared into photothermal transformation layer, and seawater surface, its installation drawing such as Fig. 1 institutes are arrived in tiling Show.This method can efficiently be converted to sunshine heat, and concentrate on the surface of seawater, and the heat of Relatively centralized can The surface temperature of photothermal transformation layer is effectively improved, largely increases evaporation of seawater speed.But the heating of this method Layer has the contact of larger area with seawater surface, and the meeting that caused heat is difficult to avoid that is scattered and disappeared into seawater, so as to reduce too The utilization rate of positive energy；In addition, this method can be such that the salinity in seawater is separated out on the surface of heating layer, cover smooth surface and block Space, photothermal transformation layer is caused to fail.
Therefore, it is necessary to develop a kind of seawater evaporator, heat is avoided to be scattered and disappeared into seawater, while sea can also be taken away The salinity separated out in water.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of new type solar energy photo-thermal seawater evaporator, utilizes Solar energy resources realizes the high-efficiency evaporating of seawater, reduces cost, improves evaporation of seawater efficiency, avoids salt in seawater from analyzing reduction The transformation efficiency of solar energy.
Technical scheme is to provide a kind of new type solar energy photo-thermal seawater used by the utility model solves its technical problem Vaporising device, including water tank, hydrophily photothermal deformation fabric and the concentrate collecting box that both sides are contour, the hydrophily photo-thermal turn Change fabric to be layed on the water tank of both sides respectively, the both ends of the hydrophily photothermal deformation fabric are respectively placed in the water of both sides In case and it is immersed in below seawater face, the hydrophily photothermal deformation fabric between the water tank of both sides is in recessed arc, described hydrophilic Property photothermal deformation fabric in the middle part of be the photothermal deformation area containing optical-thermal conversion material, the concentrate collecting box is correspondingly arranged in parent The lower section of arc minimum point in the middle part of water-based photothermal deformation fabric.
The both ends high point of the hydrophily photothermal deformation fabric and the difference in height h of middle low spot1For 0<h1≤10m。
Seawater face in the both sides water tank is contour, and the seawater face and hydrophily photothermal deformation fabric be (both ends high point Difference in height h2For 0<h2≤10m。
The hydrophily photothermal deformation fabric is made up of hydrophilic fabricses substrate and optical-thermal conversion material.
The hydrophilic fabricses substrate is the one or more in natural fiber, regenerated celulose fibre and chemical fibre Manufactured knitting fabric, woven fabric or non-woven.
The natural fiber is cotton, fiber crops, silk, hair or paper pulp, the regenerated celulose fibre be Lyocell fiber, Modal fibers, bamboo fibre, chitin fiber or CUP, the chemical fibre are terylene, spandex, acrylic fibers, polyamide fibre, dimension Synthetic fibre or polypropylene fibre.
The non-woven is non-woven fabrics.
The optical-thermal conversion material includes metal nanoparticle, carbon nanomaterial, organic optothermal material and semiconductor photo-thermal One or more in nano material.
The metal nanoparticle is gold nano grain, palladium nano-particles, Pt nanoparticle or aluminum nanoparticles, described Carbon nanomaterial is carbon black, carbon dust, porous carbon, CNT, graphene or fullerene, and organic optothermal material is poly- pyrrole Cough up, polythiophene, polyaniline, poly-dopamine, indocyanine green or Prussian blue, the semiconductor photo-thermal nano material is vulcanization Copper, copper selenide, bismuth sulfide, bismuth selenide, tungsten sulfide, tungsten oxide, titanium dioxide, titanium sesquioxide, iron sulfide or molybdenum sulfide.
Beneficial effect
(1) seawater is heated using solar energy and promotes evaporation of seawater, consumed without additional energy source, caused water steams Gas can obtain the extremely low distilled water of salt content by condensation, and the concentrated seawater of drippage can be used for further process for preparing salt by working up seawater, Be advantageous to improve salt manufacturing efficiency, reduce cost；
(2) vapor can produce from two surfaces up and down of photothermal deformation fabric, add area caused by steam, carry High steam generation efficiency；
(3) it is used for evaporation of seawater compared to photothermal deformation fabric is directly taped against in seawater surface, the utility model can Solar energy institute quantity of heat production is concentrated to the seawater of heating fabric face, heat is avoided and is lost in the longitudinal direction inside seawater, Neng Gou great It is big to improve evaporation of seawater efficiency；
(4) the utility model is that serialization solar energy sea water evaporation-concentration cooperates with generating means, and the device can evaporate The salt residues of fabric face are taken away while seawater, make the surface of photothermal deformation fabric will not separate out salinity coating and influence The utilization ratio of solar energy, reduce volatility.
Brief description of the drawings
Fig. 1 is the structural representation of traditional solar energy optical-thermal seawater evaporator.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the accumulative steam production of the utility model and traditional solar energy optical-thermal seawater evaporator in embodiment 1 Comparison diagram.
Fig. 4 is the utility model evaporation of seawater rate diagram at different moments in embodiment 2.
Fig. 5 is accumulative steam production figure of the present utility model in embodiment 2.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model.In addition, it is to be understood that reading the content of the utility model instruction Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen Please appended claims limited range.
A kind of new type solar energy photo-thermal seawater evaporator as shown in Figure 2, including the contour water tank 1 in both sides, hydrophily Photothermal deformation fabric 2 and concentrate collecting box 3.
The both sides of hydrophily photothermal deformation fabric 2 are layed on the water tank 1 of both sides respectively, hydrophily photothermal deformation fabric 2 Both ends are respectively placed in the water tank 1 of both sides and are immersed in below seawater face, and the seawater face in both sides water tank 1 is contour, seawater face with The difference in height h of the both ends high point of hydrophily photothermal deformation fabric 22For 0<h2≤10m.Hydrophily photothermal deformation between both sides water tank 1 Fabric 2 is in recessed arc, the both ends high point of hydrophily photothermal deformation fabric 2 and the difference in height h of middle low spot1For 0<h1≤ 10m。
Hydrophily photothermal deformation fabric 2 is made up of hydrophilic fabricses substrate and optical-thermal conversion material.Hydrophilic fabricses substrate For in natural fiber, regenerated celulose fibre and chemical fibre one or more made of knitting fabrics, woven fabric or Non-woven (such as non-woven fabrics), natural fiber are cotton, fiber crops, silk, hair or paper pulp etc., regenerated celulose fibre be Lyocell fiber, Modal fibers, bamboo fibre, chitin fiber or CUP, chemical fibre be terylene, spandex, acrylic fibers, polyamide fibre, polyvinyl or Person's polypropylene fibre.Optical-thermal conversion material includes metal nanoparticle, carbon nanomaterial, organic optothermal material and semiconductor photo-thermal nanometer material One or more in material.Metal nanoparticle is gold nano grain, palladium nano-particles, Pt nanoparticle or aluminium nanometer Grain, carbon nanomaterial is carbon black, carbon dust, porous carbon, CNT, graphene or fullerene, and organic optothermal material is poly- pyrrole Cough up, polythiophene, polyaniline, poly-dopamine, indocyanine green or Prussian blue, semiconductor photo-thermal nano material is copper sulfide, selenium Change copper, bismuth sulfide, bismuth selenide, tungsten sulfide, tungsten oxide, titanium dioxide, titanium sesquioxide, iron sulfide or molybdenum sulfide.
The middle part of hydrophily photothermal deformation fabric 2 is the photothermal deformation area containing optical-thermal conversion material, and concentrate collecting box 3 is right The lower section of the middle part arc minimum point of hydrophily photothermal deformation fabric 2 should be arranged at.
Embodiment 1
45mL water, 5mL concentrated hydrochloric acids (HCl mass percents are added in beaker：~36%) and 1.141g ammonium persulfates, exist Under magnetic agitation, the mixed solution (volume ratio 1 of 1mL aniline and ethanol is added thereto：1) 30s, is stirred, is put into 6 DEG C of refrigerators 24h is stood, reaction solution is carried out using sand core funnel and 0.45 μm of Kynoar filter membrane depressurizing suction filtration and washing afterwards, and Product polyaniline is re-dispersed into ethanol, is made into 8mg/mL alcohol dispersion liquid.
It is 10 × 20cm cottons to take size, and the alcohol dispersion liquid of 5mL polyanilines several times, is equably added dropwise on cotton, Control and 10 × 10cm part of the region for cotton center is added dropwise, and dried in 60 DEG C of baking oven, obtain polyaniline/cotton photo-thermal and turn Change fabric.
The photothermal deformation fabric of gained is fixed on the port of two square vinyon boxes with clip, fabric edge Part naturally droops and contacted with water box maritime interior waters, and the difference in height for control fabric centre and plastic casing port is 1cm, plastics Box inland sea water level is lower 2mm than plastic casing port, after seawater complete wetting photothermal deformation fabric, is using average intensity 0.16W/cm2, circular light spot diameter about 10cm xenon lamp simulator irradiation fabric, its vapor adds up production such as Fig. 3 institutes Show.
After evaporation of seawater, have no obvious mineral salt particle and separated out in photothermal deformation fabric face., will to be contrasted Identical photothermal deformation is laid on 10 × 10cm seawater face, under the irradiation of identical xenon lamp simulator, the accumulative production of vapor Raw situation is as shown in figure 3, the steam production rate of the present apparatus is about 3 times of traditional approach as seen from the figure.
Embodiment 2
The alcohol dispersion liquid of 8mg/mL polyaniline is prepared according to the method in embodiment 1.600mL dispersion liquids are taken, repeatedly, The center section of 80 × 240cm cottons is equably dropped in, the 80 × 140cm parts for being added dropwise that region is cotton center is controlled, is used in combination Hair dryer is dried up, and the both ends of the cotton are fixed on into two square polyethylene tank (tank opening sizes with clip：80× 15cm) port, the difference in height for controlling fabric centre and tank port is 10cm, the water surface in tank is lower than plastic casing port 1cm, after water complete wetting photothermal deformation fabric, the device is put under sunshine, records the mass change of water evaporation, it is different Moment sunshine light intensity and corresponding water evaporation speed are as shown in figure 4, the device added up the quality of generation steam such as in one day Shown in Fig. 5.

Claims (4)

1. a kind of new type solar energy photo-thermal seawater evaporator, including water tank (1) that both sides are contour, hydrophily photothermal deformation fabric And concentrate collecting box (3) (2), it is characterised in that：Hydrophily photothermal deformation fabric (2) both sides are layed in both sides respectively On water tank (1), the both ends of the hydrophily photothermal deformation fabric (2) are respectively placed in the water tank (1) of both sides and are immersed in seawater Below face, the hydrophily photothermal deformation fabric (2) between both sides water tank (1) is in recessed arc, the hydrophily photothermal deformation It is the photothermal deformation area containing optical-thermal conversion material in the middle part of fabric (2), the concentrate collecting box (3) is correspondingly arranged in hydrophily The lower section of arc minimum point in the middle part of photothermal deformation fabric (2).
A kind of 2. new type solar energy photo-thermal seawater evaporator according to claim 1, it is characterised in that：The hydrophily The both ends high point of photothermal deformation fabric (2) and the difference in height h of middle low spot1For 0<h1≤10m。
A kind of 3. new type solar energy photo-thermal seawater evaporator according to claim 1, it is characterised in that：The both sides water Seawater face in case (1) is contour, the seawater face and the difference in height h of hydrophily photothermal deformation fabric (2) both ends high point2For 0<h2 ≤10m。
A kind of 4. new type solar energy photo-thermal seawater evaporator according to claim 1, it is characterised in that：The hydrophily Photothermal deformation fabric (2) is made up of hydrophilic fabricses substrate and optical-thermal conversion material.
CN201720433722.5U 2017-04-24 2017-04-24 A kind of new type solar energy photo-thermal seawater evaporator Active CN207016517U (en)

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PCT/CN2017/111850 WO2018196351A1 (en) 2017-04-24 2017-11-20 Novel device for photothermal evaporation of sea water by solar energy

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CN108679865A (en) * 2018-03-22 2018-10-19 中国科学技术大学 The preparation method of two-dimentional conducting polymer sun absorber of light for solar energy water evaporation of vapours
CN109289546A (en) * 2018-10-26 2019-02-01 宁夏然尔特工业产业研究院（有限公司） A kind of preparation method of graphene black matrix filter membrane
CN109487315A (en) * 2018-09-21 2019-03-19 上海大学 In conjunction with carbon black film porous material, its application and preparation method thereof
CN109607650A (en) * 2018-12-24 2019-04-12 常熟理工学院 Nanogold/graphene wooden structures optical-thermal conversion material preparation method
CN110358140A (en) * 2019-06-04 2019-10-22 湖北大学 A kind of chrysanthemum shape bismuth sulfide and Kynoar composite polyurethane sponge and the preparation method and application thereof
CN110746657A (en) * 2018-07-23 2020-02-04 桂林电子科技大学 Preparation method and application of composite biomass aerogel photothermal conversion material
CN111348708A (en) * 2020-02-10 2020-06-30 东华大学 Light-oriented solar photo-thermal seawater evaporation method and device
CN111924918A (en) * 2020-06-29 2020-11-13 东华大学 Double-sided photo-thermal conversion material and solar seawater evaporation device constructed by same
CN112624240A (en) * 2020-12-29 2021-04-09 江苏恒力化纤股份有限公司 Positive desalination method for solar steam generation
CN112694125A (en) * 2019-10-22 2021-04-23 中国科学技术大学 Black molybdenum trioxide nanosheet, and preparation method and application thereof

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CN108679865A (en) * 2018-03-22 2018-10-19 中国科学技术大学 The preparation method of two-dimentional conducting polymer sun absorber of light for solar energy water evaporation of vapours
CN110746657A (en) * 2018-07-23 2020-02-04 桂林电子科技大学 Preparation method and application of composite biomass aerogel photothermal conversion material
CN109487315A (en) * 2018-09-21 2019-03-19 上海大学 In conjunction with carbon black film porous material, its application and preparation method thereof
CN109289546A (en) * 2018-10-26 2019-02-01 宁夏然尔特工业产业研究院（有限公司） A kind of preparation method of graphene black matrix filter membrane
CN109607650A (en) * 2018-12-24 2019-04-12 常熟理工学院 Nanogold/graphene wooden structures optical-thermal conversion material preparation method
CN110358140A (en) * 2019-06-04 2019-10-22 湖北大学 A kind of chrysanthemum shape bismuth sulfide and Kynoar composite polyurethane sponge and the preparation method and application thereof
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CN112694125A (en) * 2019-10-22 2021-04-23 中国科学技术大学 Black molybdenum trioxide nanosheet, and preparation method and application thereof
CN111348708A (en) * 2020-02-10 2020-06-30 东华大学 Light-oriented solar photo-thermal seawater evaporation method and device
CN111348708B (en) * 2020-02-10 2021-06-11 东华大学 Light-oriented solar photo-thermal seawater evaporation method and device
CN111924918A (en) * 2020-06-29 2020-11-13 东华大学 Double-sided photo-thermal conversion material and solar seawater evaporation device constructed by same
CN112624240A (en) * 2020-12-29 2021-04-09 江苏恒力化纤股份有限公司 Positive desalination method for solar steam generation

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