CN203890083U - System for desalinating seawater through absorbing solar energy by using liquid-solid fluidized bed - Google Patents
System for desalinating seawater through absorbing solar energy by using liquid-solid fluidized bed Download PDFInfo
- Publication number
- CN203890083U CN203890083U CN201420144485.7U CN201420144485U CN203890083U CN 203890083 U CN203890083 U CN 203890083U CN 201420144485 U CN201420144485 U CN 201420144485U CN 203890083 U CN203890083 U CN 203890083U
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- Prior art keywords
- liquid
- solid
- fluid bed
- seawater
- fluidized bed
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- 239000007787 solid Substances 0.000 title claims abstract description 76
- 239000013535 sea water Substances 0.000 title claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000013505 freshwater Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 42
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 239000012071 phase Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000007792 gaseous phase Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000010612 desalination reaction Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 6
- 230000008020 evaporation Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
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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
- Y02A20/141—Wind power
-
- 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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a system for desalinating seawater through absorbing solar energy by using a liquid-solid fluidized bed, belonging to the technical field of solar-powered seawater desalination. The system comprises a solar light gathering device, the liquid-solid fluidized bed, a pump, a compressor, a preheater, a filter, a gas-liquid separator and a liquid storage tank. Sunlight is directly irradiated into the liquid-solid fluidized bed after being focused by the solar light gathering device, the solar heat radiation is absorbed by solid particles to heat seawater in the liquid-solid fluidized bed, water vapor generated in the liquid-solid fluidized bed is increased in pressure and temperature after being compressed, and then, the water vapor enters the preheater so as to be preheated, i.e., the seawater entering the liquid-solid fluidized bed is condensed to obtain fresh water. The system disclosed by the utility model operates at normal pressure; the solar heat irradiation is absorbed by the high-absorptivity solid particles in the liquid-solid fluidized bed, and meanwhile, evaporation efficiency of the seawater is improved by means of the efficient heat exchange between liquid and solids in the liquid-solid fluidized bed.
Description
Technical field
The utility model relates to and utilizes solid particulate directly to absorb sun power as thermal source, to carry out the system and method for sea water desaltination, belong to solar seawater desalination field.
Background technology
Current industrial applications the most widely desalination technology comprises multistage flash evaporation method, multiple-effect evaporation method and reverse osmosis method.These methods all will consume a large amount of fuel and electric power resource.Utilize renewable energy source-sun power to carry out sea water desaltination, the energy and the environmental problem that can avoid a large amount of fuel and electric power resource consumption to bring.
Utility model content
The problem that this patent will solve is: provide a kind of method of sun power of efficiently utilizing to carry out sea water desaltination, to solve high, the inefficient problem of present stage sea water desaltination cost, reduce the pollution to environment, improve the ability of utilizing to sun power.What the solar seawater desalination of present stage mainly utilized is surface-type heat absorption, and such heat absorption mode thermosteresis is large, and the heat exchanger effectiveness of absorbing surface and seawater is low.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: this seawater desalination system comprises draws together liquid-solid fluid bed, solar-energy light collector, preheater, pump, gas-liquid separator, compressor, strainer, fresh water container for storing liquid, seawater container for storing liquid.Liquid-solid fluid bedly by housing and the liquid-solid two-phase heat-absorbing medium that is positioned at wherein, formed; Housing top has silica glass window; Housing is divided into lower space and upper space, and liquid-solid two-phase heat-absorbing medium is positioned at lower space; Housing bottom is provided with sea intake and the concentrated seawater outlet communicating with lower space, and housing top is from bottom to top disposed with spillway and the vapour outlet communicating with upper space.Seawater container for storing liquid is connected with the cold side inlet of preheater through strainer, and the cold side outlet of preheater is connected with liquid-solid fluid bed sea intake through pump; Liquid-solid fluid bed vapour outlet is connected with gas-liquid separator entrance, the gaseous phase outlet of gas-liquid separator is connected with the hot side inlet of preheater through compressor, the hot junction outlet of preheater is connected with fresh water container for storing liquid, the liquid-phase outlet of gas-liquid separator is connected with the input terminus of pump, and liquid-solid fluid bed spillway is connected with the input terminus of pump.
The operational process that liquid-solid fluid bed absorption sun power carries out seawater desalination system is: seawater enters system after strainer, first by preheater, carry out preheating, again by pump be driven into liquid-solid fluid bed in, be mixed to form liquid-solid fluidized state with the solid particulate in liquid-solid fluid bed, solar radiation after focusing see through quartz window be irradiated to liquid-solid fluid bed in, solid particulate in liquid-solid fluid bed absorbs incident solar radiation, the solid particulate of fluidisation transfers heat to again seawater simultaneously, and seawater is subject to thermal evaporation to form water vapour; Through gas-liquid separator separates water vapour out, through compressor boost, enter the pre-hot sea water of preheater, after condensation, become fresh water and enter fresh water container for storing liquid; The entrance that again enters pump through gas-liquid separator separates seawater out enters circulation; When seawater in liquid-solid fluid bed is too much, seawater can again enter pump intake from spillway and enter circulation when system is after operation for some time, the concentrated seawater relief outlet of liquid-solid fluid bed bottom can be opened, and to discharge concentrated seawater, reduces the concentration of liquid-solid fluid bed maritime interior waters.
Seawater is squeezed in liquid-solid fluid bed and is formed fluidization campaign with inner solid particulate by pump.In liquid-solid fluid bed, the solid particles surface being fluidized has in a large number formed the heating surface of effective absorption solar radiation.Solid particulate is raise by solar radiation Heating temperature, and the alternate motion by liquid-solid simultaneously transfers heat to seawater around, causes at its surperficial evaporation of seawater.The coefficient of heat transfer between liquid-solid fluid bed interior solid particulate and seawater is far above the convection transfer rate of surface-type heat exchanger, and in addition because particle swarm has larger specific surface area, the heat interchanging area between liquid-solid is larger.Therefore particle can fast and effeciently pass to seawater by solar radiation, has accelerated greatly evaporation of seawater process.
Steam from liquid-solid fluid bed out through pressurization enter again the pre-hot sea water of preheater, can improve heat exchange efficiency like this, so that water vapour total condensation gets off to obtain fresh water.
Liquid-solid fluid bed housing adopts inner ganoid stainless material to make, and its outside is wrapped up by asbestos thermal insulation layer, and the silica glass on top is that the upper space sealing of housing can make again solar radiation transmissive shine directly on solid particulate.
Liquid-solid fluid bed absorption sun power carries out at spillway and concentrated seawater relief outlet, being all equipped with filter in seawater desalination system, and outside preventing that particulate removal is liquid-solid fluid bed, and the pore size of filter is determined by the size of particle.
The utility model utilizes solid particulate as the main absorbing medium of sun power, efficient absorption sun power, and the solar radiation heat energy of absorption is passed to seawater rapidly, and cause evaporation of seawater to produce water vapour, water vapour again condensation obtains fresh water later.The mode that the utility model absorbs sun power belongs to cavate absorption, than surface-type, absorbs (as tubular type heat absorber), and the thermosteresis in its absorption process is less, and absorption temperature is high.
Accompanying drawing explanation
Fig. 1 is the system construction drawing that a kind of liquid-solid fluid bed absorption sun power of the present utility model carries out sea water desalinating plant;
Fig. 2 is liquid-solid fluid bed structural representation;
Number in the figure title: 1-solar-energy light collector, 2-is liquid-solid fluid bed, 3-gas-liquid separator, 4-compressor, 5-pump, 6-fresh water container for storing liquid, 7-preheater, 8-strainer, 9-seawater container for storing liquid, 10-silica glass window, 11-vapour outlet, 12-spillway filter screen, 13-spillway, 14-solid particulate, 15-housing, 16-concentrated seawater outlet filter screen, the outlet of 17-concentrated seawater, 18-sea intake.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.This example is implemented take technical solutions of the utility model under prerequisite, provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
What the utility model proposes a kind ofly utilizes liquid-solid fluid bed absorption sun power to carry out sea water desalinating plant, as shown in Figure 1.The present embodiment comprises: liquid-solid fluid bed 2, solar-energy light collector 1, preheater 7, pump 5, compressor 4, gas-liquid separator 3, fresh water container for storing liquid 6, seawater container for storing liquid 9 and strainer 8.The hot junction output terminal output fresh water of preheater, cold section of entrance end of preheater adds seawater.
Solar-energy light collector is sun power generator, and provide through focusing later be high-intensity solar radiation.
Liquid-solid fluid bed housing, solid particulate, silica glass window, spillway, concentrated seawater outlet, vapour outlet, the sea intake composition of comprising.Wherein solid particulate can adopt diameter at the black ceramic particle of 0.3mm-6mm, and housing adopts stainless steel to make, and outside is wrapped up by asbestos thermal insulation layer.A pressure warning unit is equipped with so that monitor the pressure of liquid-solid fluid bed inside in liquid-solid fluid bed top.
Liquid-solid fluid bed spillway is connected with the import of pump so that by the seawater overflowing again squeeze into liquid-solid fluid bed in, a velocimeter can be housed, so that the flow of seawater is overflowed in monitoring between spillway and pump.
The front end of pump also can be equipped with a velocimeter, so that monitoring seawater enters the flow of system.
This example carries out work in the following manner: seawater enters preheater 7 preheatings after strainer 8, by pump 5, squeezed in liquid-solid fluid bed 2 again, seawater forms liquid-solid fluidisation with bed endoparticle, the high strength solar radiation that liquid-solid two-phase absorption solar-energy light collector 1 produces produces water vapour after irradiating, water vapour is through gas-liquid separator, the front end that isolated liquid phase utilizes conduit to lead pump is squeezed into liquid-solid fluid bed again, gas phase enters the seawater that preheater 7 preheatings enter from strainer after compressor 5 compressions, and condensation gets off to obtain fresh water.
Claims (3)
1. the system that liquid-solid fluid bed absorption sun power carries out sea water desaltination, is characterized in that: comprise liquid-solid fluid bed (2), solar-energy light collector (1), preheater (7), pump (5), gas-liquid separator (3), compressor (4), strainer (8), fresh water container for storing liquid (6), seawater container for storing liquid (9);
Liquid-solid fluid bed (2) are comprised of housing (15) and the liquid-solid two-phase heat-absorbing medium that is positioned at wherein; Housing (15) top has silica glass window (10); Housing (15) is divided into lower space and upper space, and liquid-solid two-phase heat-absorbing medium is positioned at lower space; Housing (15) bottom is provided with sea intake (18) and the concentrated seawater outlet (17) communicating with lower space, and housing (15) top is from bottom to top disposed with spillway (13) and the vapour outlet (11) communicating with upper space;
Seawater container for storing liquid (9) is connected with the cold side inlet of preheater (7) through strainer (8), and the cold side outlet of preheater (7) is connected with the sea intake (18) of liquid-solid fluid bed (2) through pump (5); The vapour outlet of liquid-solid fluid bed (2) (11) is connected with gas-liquid separator (3) entrance, the gaseous phase outlet of gas-liquid separator (3) is connected with the hot side inlet of preheater (7) through compressor (4), the hot junction outlet of preheater (7) is connected with fresh water container for storing liquid (6), the liquid-phase outlet of gas-liquid separator (3) is connected with the input terminus of pump (5), and the spillway of liquid-solid fluid bed (2) (13) is connected with the input terminus of pump (5).
2. the system that liquid-solid fluid bed absorption sun power according to claim 1 carries out sea water desaltination, is characterized in that: described liquid-solid fluid bed housing (15) adopts inner ganoid stainless material to make, and its outside is wrapped up by asbestos thermal insulation layer.
3. the system that liquid-solid fluid bed absorption sun power according to claim 1 carries out sea water desaltination, is characterized in that: described spillway (13) and concentrated seawater outlet (17) locate to be all equipped with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144485.7U CN203890083U (en) | 2014-03-28 | 2014-03-28 | System for desalinating seawater through absorbing solar energy by using liquid-solid fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144485.7U CN203890083U (en) | 2014-03-28 | 2014-03-28 | System for desalinating seawater through absorbing solar energy by using liquid-solid fluidized bed |
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| Publication Number | Publication Date |
|---|---|
| CN203890083U true CN203890083U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420144485.7U Expired - Fee Related CN203890083U (en) | 2014-03-28 | 2014-03-28 | System for desalinating seawater through absorbing solar energy by using liquid-solid fluidized bed |
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| Country | Link |
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| CN (1) | CN203890083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910398A (en) * | 2014-03-28 | 2014-07-09 | 南京航空航天大学 | System and method for desalinating seawater through absorbing solar energy via liquid-solid fluidized bed |
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2014
- 2014-03-28 CN CN201420144485.7U patent/CN203890083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910398A (en) * | 2014-03-28 | 2014-07-09 | 南京航空航天大学 | System and method for desalinating seawater through absorbing solar energy via liquid-solid fluidized bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20160328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |