CN109292869A - Solar energy sea water desalination apparatus and application based on gas-liquid interface heating - Google Patents
Solar energy sea water desalination apparatus and application based on gas-liquid interface heating Download PDFInfo
- Publication number
- CN109292869A CN109292869A CN201811184000.6A CN201811184000A CN109292869A CN 109292869 A CN109292869 A CN 109292869A CN 201811184000 A CN201811184000 A CN 201811184000A CN 109292869 A CN109292869 A CN 109292869A
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- Prior art keywords
- water
- solar energy
- gas
- liquid interface
- desalination apparatus
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Classifications
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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
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
-
- 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
- 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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- 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
- Y02A20/124—Water desalination
-
- 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
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
Abstract
It include: the container for storing seawater the present invention relates to a kind of solar energy sea water desalination apparatus based on gas-liquid interface heating and application, device；The heat insulation being connected on the container inner wall；Water-absorbent material on heat insulation is set；The black light-absorbing material being adsorbed on water-absorbent material；And the water-absorption mechanism for seawater to be transported to water-absorbent material.The device can be improved the rate of solar seawater desalination.
Description
Technical field
The invention belongs to solar seawater desalination fields, and in particular to a kind of solar energy sea water based on gas-liquid interface heating
Desalting plant and application.
Background technique
With the rapid development of social industrial or agricultural, the sharp increase of population, demand of the people to water resource is growing.It is same with this
When, bring water pollution problems is also more serious, this make originally just very rare cleaning, safety freshwater resources more
Add shortage.
Currently, solving the problems, such as that the effective ways of shortage of fresh water are sea water desalination, long distance water transfer and water resource
The regeneration of (stain disease).Compared to other two methods, sea water desalination is capable of providing sufficient water and good water quality,
It is used in recent years by more and more countries.
Traditional sea water desalination method can be divided mainly into phase transition method and non-phase transition method two major classes, and specific mainly includes Multi-stage flash
Steaming method, hyperfiltration, electroosmose process etc..Regrettably, these methods all have an obvious common drawback, that is,
Energy consumption is huge.In today that fossil fuel short supply, energy prices skyrocket, environmental quality constantly deteriorates, using novel clear
Clean renewable energy, which carries out clean water production, just becomes an important research and development direction.
Compare the distribution situation of solar energy in the world by analyzing, it is found that water-deficient area is generally owned by richer
Rich solar energy resources, therefore seawater is carried out desalinating to become solving under water crisis and environmental pollution predicament using solar energy
One of the important means of shortage of water resources problem.
Conventional solar seawater desalination method is to convert solar energy into thermal energy or electric energy, by adding to whole water
Heat promotes moisture to evaporate, and needs to expend a large amount of energy.Studies have shown that evaporation is a surface process, it only occurs in sky
The interface of gas and water as long as heated surface layer water can reach same water evaporation effect, therefore can greatly save the energy.Such as
Fruit light, which shines directly into water surface, can occur to reflect or reflect, and the utilization rate of solar energy will be substantially reduced, if in gas-liquid
Interface, which increases by one layer of efficient light absorbent, can so significantly improve the utilization rate of solar energy, to accelerate surface evaporation
Process.Currently, the rate for how improving gas-liquid interface heating solar sea water desalination has become the hot spot in order to study both at home and abroad.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of solar energy sea based on gas-liquid interface heating
Water desalination apparatus, for improving the rate of solar seawater desalination.
Technical solution provided by the present invention are as follows:
A kind of solar energy sea water desalination apparatus based on gas-liquid interface heating, comprising:
For storing the container of seawater；
The heat insulation being connected on the container inner wall；
Water-absorbent material on heat insulation is set；
The black light-absorbing material being adsorbed on water-absorbent material；
And the water-absorption mechanism for seawater to be transported to water-absorbent material.
The present invention is designed by the structure to device, when sunlight is radiated on black light-absorbing material, utilizes black
The strong light absorptive of light absorbent, converts light energy into thermal energy；It is heat-insulated simultaneously using heat insulation by evaporating surface and water body overall separation
Block can be prevented effectively in the water body of the incoming lower section of heat；Using water-absorption mechanism as canal for water conveyance, seawater is transported to suction
On water material.According to gas-liquid interface principle of heating, the thermal energy being transformed using solar energy carries out the interfacial water that absorption comes up
Heating, due to interface water inventory m very little, by formula Q=cm Δ t it is recognised that interfacial water temperature rapid increase, therefore significantly
Improve the evaporation rate of interfacial water.
Heat insulation of the present invention is foam block or sponge block.
Preferably, the heat insulation is interference fitted on the inner walls of the container.Heat insulation can be fixed on specifically
Highly, guarantee that the illumination height of interfacial water and sunlight is fixed, realize the stabilization of illumination.
Water-absorbent material of the present invention is dust-free paper.
Dust-free paper of the present invention is coated on heat insulation.
Black light-absorbing material of the present invention is selected from hydrocarbon black powder, black TiOxPowder or black MoS2Powder.
Black light-absorbing material of the present invention is adsorbed on water-absorbent material by way of suction filtration, spraying or spin coating.
Water-absorption mechanism of the present invention is the Alcohol wick across heat insulation；Described Alcohol wick one end is connected to water-absorption material
Material, the other end and contact with sea water.Alcohol wick can for water-absorbent material convey seawater, after the water evaporation of interface, further for
Alcohol wick feeding bottom seawater provides power, and the presence of Alcohol wick can also avoid making water to a certain extent when water evaporation
Since water cannot continue on to the case where surface cannot continue working so as to cause device hair when water-absorbent material or less is down in face
It is raw.
The present invention also provides a kind of applications such as above-mentioned device in the photothermal conversion performance of analysis black light-absorbing material.
Due to device carry out solar seawater desalination when, the illumination height of interfacial water and sunlight is fixed, and the intensity of light source and
Light application time is also that can control, and can be carried out under this condition to the photothermal conversion performance of black light-absorbing material newly developed
Quantitative study.
Compared with the existing technology, the beneficial effects of the present invention are embodied in:
(1) the device of the invention is designed by structure, can further increase the rate of solar seawater desalination.
(2) it is equipped with Alcohol wick in the device of the invention, to a certain extent the water surface can be down to avoid when water evaporation
Since water cannot continue on to the case where surface cannot continue working so as to cause device when below water-absorbent material.
(3) illumination height of the device of the invention due to can control interfacial water and sunlight, can be to newly developed black
The photothermal conversion performance of color light absorbent carries out quantitative study.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of solar energy sea water desalination apparatus in embodiment；
Fig. 2 is device preparation flow figure in embodiment；
Fig. 3 is the evaporation capacity of three kinds of operating conditions in embodiment with the variation diagram of light application time；
Fig. 4 is the infrared photograph of three kinds of operating conditions in embodiment.
Specific embodiment
Below with reference to specific embodiment, present invention will be explained in further detail.
As shown in Figure 1, solar energy sea water desalination apparatus include container 5, water-absorbent material 2, heat insulation 3, Alcohol wick 4 and
Black light-absorbing material 1.Container 5 is open-topped cylinder, and bottom is packed into the liquid 6 to be evaporated such as seawater or artificial seawater, is held
Device 5 can be cylindrical transparent glass.
As shown in Fig. 2, black light-absorbing material 1 can be adsorbed on water-absorbent material 2 by modes such as spin coating, spraying or suction filtrations
On, water-absorbent material 2 can be dust-free paper, and black light-absorbing material 1 forms certain shapes, preferably circular.Black light-absorbing material 1 selects
From hydrocarbon black powder, black TiOxPowder or black MoS2Powder.4 one end of Alcohol wick passes through heat insulation 3, and heat insulation 3 can be
Sponge block or foam block.Then the water-absorbent material 2 after absorption black light-absorbing material 1 is coated on heat insulation 3, so that black is inhaled
Luminescent material 1 is respectively positioned on top can be by irradiation.It is finally packed into whole in container 5, heat insulation 3 can be interference fitted in container 5
Inner wall on, 4 other end of Alcohol wick is inserted into liquid 6 to be evaporated.
It is illustrated below by specific application examples:
Operating condition 1: under the analog light source irradiation of 5.5 Intensity of the sunlight, the artificial seawater of 120ml, which is placed in diameter, is
In the cylindrical transparent glass of 4.8cm, any extra process is not done.The mass change of experimental subjects in the time of 1h is recorded,
The evaporation rate of artificial seawater is calculated.25 DEG C of environment temperature, humidity 40%, 25 ± 1 DEG C of artificial seawater temperature.
Operating condition 2: under the analog light source irradiation of 5.5 Intensity of the sunlight, the artificial seawater of 120ml, which is placed in diameter, is
In the cylindrical transparent glass of 4.8cm, hydrocarbon black powder of the 13.4mg Jing Guo silicic acid anhydride is put into.It records real in the time of 1h
The evaporation rate of artificial seawater is calculated in the mass change for testing object.25 DEG C of environment temperature, humidity 40%, artificial seawater temperature
25 ± 1 DEG C of degree.
Operating condition 3: under the analog light source irradiation of 5.5 Intensity of the sunlight, the artificial seawater of 120ml, which is placed in diameter, is
In the cylindrical transparent glass of 4.8cm, the hydrocarbon black powder of 13.4mg is filtered on dust-free paper, is placed on foam block, by
A piece Alcohol wick delivers water into carbon black powders as canal for water conveyance.The quality for recording experimental subjects in the time of 1h becomes
Change, the evaporation rate of artificial seawater is calculated.25 DEG C of environment temperature, humidity 40%, 25 ± 1 DEG C of artificial seawater temperature.
Interpretation of result:
From the figure 3, it may be seen that the evaporation capacity that three kinds of operating conditions are lauched meets zero order kinetics equation with the variation of light application time.Operating condition
1, the evaporation rate of artificial seawater is 0.40kgm-2·h-1；Operating condition 2, the evaporation rate of artificial seawater are 0.91kgm-2·
h-1；Operating condition 3, artificial seawater evaporation rate are 4.66kgm-2·h-1, it is the 5.12 of 11.65 times of operating condition 1 and operating condition 2 respectively
Times.
Above-mentioned experimental result can further illustrate that the state of " interface heating ", which heats Driven by Solar Energy interface, steams
The importance of technology is evaporated, this characteristic how is made good use of, is one of the key factor for promoting water distilling rate, the dress in the present invention
It comes out " interface " of interface heating is independent exactly because setting it, reduces heat in other aspects with heat insulation is heat-insulated
Loss, while the working method of seawater is supplied but also the water being heated evaporates required heat and system sheet in evaporation
The heat that body is absorbed reaches the balance under a kind of optimal working condition, and the rate that just evaporates the water obtains leap and promoted.
By the way that under three kinds of operating conditions of comparison, after illumination 1 hour, the temperature (infrared photograph) of gas-liquid interface can be further illustrated
There is the reason of the above results, as shown in Figure 4.It is reachable in its gas-liquid interface temperature to will be obvious apparatus of the present invention from figure
66.1 DEG C, 26 DEG C and 8.7 DEG C are higher by than operating condition 1 and operating condition 2 respectively.
Claims (9)
1. a kind of solar energy sea water desalination apparatus based on gas-liquid interface heating characterized by comprising
For storing the container of seawater；
The heat insulation being connected on the container inner wall；
Water-absorbent material on heat insulation is set；
The black light-absorbing material being adsorbed on water-absorbent material；
And the water-absorption mechanism for seawater to be transported to water-absorbent material.
2. the solar energy sea water desalination apparatus according to claim 1 based on gas-liquid interface heating, which is characterized in that described
Heat insulation is foam block or sponge block.
3. the solar energy sea water desalination apparatus according to claim 1 based on gas-liquid interface heating, which is characterized in that described
Heat insulation is interference fitted on the inner walls of the container.
4. the solar energy sea water desalination apparatus according to claim 1 based on gas-liquid interface heating, which is characterized in that described
Water-absorbent material is dust-free paper.
5. the solar energy sea water desalination apparatus according to claim 4 based on gas-liquid interface heating, which is characterized in that described
Dust-free paper is coated on heat insulation.
6. the solar energy sea water desalination apparatus according to claim 1 based on gas-liquid interface heating, which is characterized in that described
Black light-absorbing material is selected from hydrocarbon black powder, black TiOxPowder or black MoS2Powder.
7. the solar energy sea water desalination apparatus according to claim 1 based on gas-liquid interface heating, which is characterized in that described
Black light-absorbing material is adsorbed on water-absorbent material by way of suction filtration, spraying or spin coating.
8. the solar energy sea water desalination apparatus according to claim 1 based on gas-liquid interface heating, which is characterized in that described
Water-absorption mechanism is the Alcohol wick across heat insulation；Described Alcohol wick one end is connected to water-absorbent material, and the other end connects with seawater
Touching.
9. a kind of device as described in claim 1~8 is any answering in the photothermal conversion performance of analysis black light-absorbing material
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184000.6A CN109292869B (en) | 2018-10-11 | 2018-10-11 | Solar seawater desalination device based on gas-liquid interface heating and application |
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|---|---|---|---|
| CN201811184000.6A CN109292869B (en) | 2018-10-11 | 2018-10-11 | Solar seawater desalination device based on gas-liquid interface heating and application |
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| CN109292869A true CN109292869A (en) | 2019-02-01 |
| CN109292869B CN109292869B (en) | 2021-07-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873473A (en) * | 2019-11-25 | 2020-03-10 | 云南大学 | Photo-thermal conversion material, preparation method thereof and solar photo-thermal conversion device |
| CN111994985A (en) * | 2020-08-25 | 2020-11-27 | 孔令斌 | Solar seawater desalination device with water storage and condensation functions |
| CN112759019A (en) * | 2020-12-22 | 2021-05-07 | 东南大学 | Sawdust pressure sheet material suitable for seawater desalination, preparation method and seawater desalination device |
| CN112794389A (en) * | 2020-12-30 | 2021-05-14 | 上海交通大学 | Double-mechanism salt-tolerant seawater desalination device and application thereof |
| CN113247980A (en) * | 2021-05-06 | 2021-08-13 | 华南理工大学 | Composite photothermal conversion material based on shaddock peel, and preparation and application thereof |
| CN114409003A (en) * | 2022-01-29 | 2022-04-29 | 东莞理工学院 | Solar-driven salt extraction evaporator |
| CN114684881A (en) * | 2022-03-18 | 2022-07-01 | 浙江大学 | Method for utilizing activated persulfate to reduce VOCs entering photo-thermal distillation condensation to desalinate water |
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| CN108275737A (en) * | 2018-01-25 | 2018-07-13 | 浙江大学 | A method of it is desalinized seawater based on gas-liquid interface heating |
| CN108569811A (en) * | 2018-04-26 | 2018-09-25 | 清华大学 | The device of sewage purification is carried out using solar energy based on optical-thermal conversion material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873473A (en) * | 2019-11-25 | 2020-03-10 | 云南大学 | Photo-thermal conversion material, preparation method thereof and solar photo-thermal conversion device |
| CN111994985A (en) * | 2020-08-25 | 2020-11-27 | 孔令斌 | Solar seawater desalination device with water storage and condensation functions |
| CN112759019A (en) * | 2020-12-22 | 2021-05-07 | 东南大学 | Sawdust pressure sheet material suitable for seawater desalination, preparation method and seawater desalination device |
| CN112794389A (en) * | 2020-12-30 | 2021-05-14 | 上海交通大学 | Double-mechanism salt-tolerant seawater desalination device and application thereof |
| CN112794389B (en) * | 2020-12-30 | 2022-04-26 | 上海交通大学 | Double-mechanism salt-tolerant seawater desalination device and application thereof |
| CN113247980A (en) * | 2021-05-06 | 2021-08-13 | 华南理工大学 | Composite photothermal conversion material based on shaddock peel, and preparation and application thereof |
| CN114409003A (en) * | 2022-01-29 | 2022-04-29 | 东莞理工学院 | Solar-driven salt extraction evaporator |
| CN114684881A (en) * | 2022-03-18 | 2022-07-01 | 浙江大学 | Method for utilizing activated persulfate to reduce VOCs entering photo-thermal distillation condensation to desalinate water |
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| CN109292869B (en) | 2021-07-13 |
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