CN102344179A - Solar absorption type sea water desalination device with regenerative cycle - Google Patents
Solar absorption type sea water desalination device with regenerative cycle Download PDFInfo
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- CN102344179A CN102344179A CN201110303428XA CN201110303428A CN102344179A CN 102344179 A CN102344179 A CN 102344179A CN 201110303428X A CN201110303428X A CN 201110303428XA CN 201110303428 A CN201110303428 A CN 201110303428A CN 102344179 A CN102344179 A CN 102344179A
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- water
- seawater
- condenser
- evaporator
- cooling
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- 239000013535 sea water Substances 0.000 title claims abstract description 48
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 16
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 7
- 230000001172 regenerating effect Effects 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 56
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000013505 freshwater Substances 0.000 claims abstract description 29
- 239000000498 cooling water Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims abstract 7
- 238000011084 recovery Methods 0.000 claims abstract 4
- 239000007921 spray Substances 0.000 claims abstract 3
- 238000007872 degassing Methods 0.000 claims abstract 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000006200 vaporizer Substances 0.000 description 30
- 229940059936 lithium bromide Drugs 0.000 description 26
- 238000000034 method Methods 0.000 description 13
- 238000009833 condensation Methods 0.000 description 10
- 230000005494 condensation Effects 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000005382 thermal cycling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- Y02A20/142—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
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
本发明公开了一种带回热循环的太阳能吸收式海水淡化装置，包括冷却水箱，冷却塔，冷却管道，三者循环连通；包括太阳能集热器，热水箱，加热管道，三者连通，包括海水箱、海水脱气装置、蒸发器，三者连通，蒸发器内设喷雾嘴，喷雾嘴与蒸发器连通，蒸发器外接有出水管道；还包括吸收式循环系统，其中有吸收器，溶液循环泵，溶液热交换器，发生器，四者相连通；吸收器及发生器内有溴化锂溶液，溶液热交换器内设通水管道，通水管道与吸收器及发生器连通，溶液循环泵与控制系统连接，冷却管道置于吸收器中，加热管道置于发生器中；冷凝器与淡水收集箱连通，水泵均安装在连接管上，并与控制系统相连接。这能增加淡水产率，减少海水对设备的腐蚀。
The invention discloses a solar absorption type seawater desalination device with a heat recovery cycle, which includes a cooling water tank, a cooling tower, and a cooling pipeline, and the three are connected in circulation; and a solar heat collector, a hot water tank, and a heating pipeline, and the three are connected. It includes a seawater tank, a seawater degassing device, and an evaporator. The three are connected. The evaporator is equipped with a spray nozzle, which is connected to the evaporator. Circulation pump, solution heat exchanger, generator, the four are connected; there is lithium bromide solution in the absorber and generator, the solution heat exchanger is equipped with a water pipe, the water pipe is connected with the absorber and generator, and the solution circulation pump It is connected with the control system, the cooling pipe is placed in the absorber, and the heating pipe is placed in the generator; the condenser is connected with the fresh water collection tank, and the water pump is installed on the connecting pipe and connected with the control system. This increases freshwater production rates and reduces corrosion of equipment by seawater.
Description
Technical field:
The present invention relates to field of sea water desalting technology, be specifically related to a kind of solar absorption sea water desalinating plant of taking back thermal cycling.
Background technology:
At present, along with the rapid increase of the high speed development and the population of society, the shortage of fresh water problem has caused the generally attention of countries in the world, and the aggravation of Freshwater resources crisis is developed rapidly desalination technology.Present stage, the method for desalting seawater of using of realizing in the world installing mainly was divided into two big types: the one, and heat treatment process mainly comprises multistage flash evaporation (MSF), multiple-effect evaporation (MED); The 2nd, the film treating processes is like electrodialysis (ED) and reverse osmosis (SWRO).But these two kinds of methods all are to be cost with consumed power or a large amount of fuel, and at high temperature seawater can corrode equipment, also material is had higher requirement.Yet,, can cause with the fresh water cost of these two kinds of method preparations high along with the worsening shortages of the energy.
Simultaneously, in seawater desalination system, will emit a large amount of latent heats of vaporization in the condenser of condensation formation fresh water, these heats are taken away by water coolant, have caused the huge waste of heat.
Summary of the invention:
Handle the energy consumption problem of sea water desaltination treatment technology existence and the etching problem of equipment and materials to thermal treatment sea water desaltination and film; The purpose of this invention is to provide a kind of solar absorption sea water desalinating plant of taking back thermal cycling; Less demanding to raw water quality; Low to the driving heat source temperature requirement; Can improve the efficient of the energy utilization of system; Increase the fresh water productive rate, and reduce seawater corrosion on Equipment.
The present invention is achieved through following technical scheme: a kind of solar absorption sea water desalinating plant of taking back thermal cycling comprises seawater de-gassing vessel, cooling system, hot-water system, condenser, vaporizer, water valve, sea water tank, fresh water collection box, Controlling System, the pipe connecting that is used to remove noncondensable gas, the water pump that is used to be installed in pipe connecting;
Said cooling system comprises cooling water tank, cooling tower, cooling duct, three's connection that circulates;
Said hot-water system comprises solar energy collector, hot well tank, and water back, three's connection that circulates, through the driving heat source of solar energy collector as hot-water system, not only can save energy, and can be applied on the island of electricity shortage;
Said sea water tank, seawater de-gassing vessel, vaporizer three are connected, and establish fog nozzle in the said vaporizer, and said fog nozzle is communicated with the vaporizer circulation, and said vaporizer is circumscribed with outlet conduit; Seawater through the seawater de-gassing vessel; Form water smoke through the low pressure fog nozzle; Be sprayed in the vaporizer; Form water vapour; So more help the evaporation of seawater; Will rest in the vaporizer and remain the seawater that does not form water vapour, arrive fog nozzle through the water pump circulate then, and form water smoke; Be sprayed in the vaporizer; Form water vapour, after the end, seawater is discharged through outlet conduit; Reduce the corrosion of seawater to vaporizer; And for whole device, seawater only stops at vaporizer, has also reduced the extent of corrosion of seawater to whole device to greatest extent;
Also comprise the absorption recycle system, the said absorption recycle system comprises resorber, solution circulation pump, and solution heat exchanger, producer, four are connected through pipe connecting;
In said resorber and the producer lithium-bromide solution is arranged; Establish ventilating water pipe in the said solution heat exchanger, said ventilating water pipe is connected with resorber and producer, and said solution circulation pump is connected with Controlling System; Said cooling duct places resorber, and said water back places producer;
Absorb the water vapour process; The lithium-bromide solution of resorber absorbs the water vapour in the vaporizer; Lithium-bromide solution is thinning; Cooling duct is taken away a large amount of latent heat that the water vapour in the resorber sends simultaneously; Lithium-bromide solution after thinning then is pressurized to solution heat exchanger through solution circulation pump; Ventilating water pipe feeds the dense lithium-bromide solution of producer, thereby rare lithium-bromide solution and dense lithium-bromide solution carry out heat exchange in solution heat exchanger;
Rare steam process that discharges water; Rare lithium-bromide solution gets into producer; And be sprayed onto in the water back of producer; The boiling point of water is lower than lithium-bromide solution; Thereby water vapour is evaporated out; Make the lithium-bromide solution in the producer thicken, dense lithium-bromide solution feeds in the resorber through ventilating water pipe again, and carries out the next circulation that absorbs water vapour and rare steam that discharges water;
Said condenser is connected with the fresh water collection box, and rare water vapour of putting feeds in the condenser from resorber, and the water vapour that condensation is later forms fresh water, and is collected in the fresh water collection box;
Said all water valves are connected with Controlling System;
Establish circulating line between said condenser and the vaporizer; Circulating line is located in condenser and the vaporizer; Rare water vapour of putting feeds in the condenser from resorber; Water vapour gets into condenser; And in the process of condenser condenses, can produce a large amount of heat of condensation; And the circulating line in condenser can be taken away the heat of condensation that is produced; Heat gets into vaporizer through circulating line; On the one hand, reduce the temperature of condenser, improved condensing rate; Improve the fresh water producing water ratio; Improve the temperature of vaporizer on the other hand, accelerate the speed of evaporation of seawater, improve the efficient of evaporation;
The connection that circulates mutually of the circulating pipe of said condenser and cooling system; Rare water vapour of putting feeds in the condenser from resorber; After water vapour gets into condenser; Form fresh water through condensation; And circulating pipe is connected with cooling system in the condenser, and water coolant gets into condenser through circulating pipe, and cooling fresh water; Form refrigerated water, realized producing simultaneously the purpose of fresh water and refrigerated water;
Said water pump is installed on the pipe connecting, and is connected with Controlling System;
The present invention absorbs the water vapour of vaporizer through the dense lithium-bromide solution in resorber; The rare steam that discharges water of rare lithium-bromide solution in producer; And process fresh water in the feeding condenser; Between resorber and producer, be provided with solution heat exchanger in order to the exchange lithium-bromide solution; Need not consume a large amount of other energy like this and produce the fresh water composition in the seawater; Practiced thrift water producing cost; Less demanding to raw water quality; Low to the driving heat source temperature requirement; Can improve the efficient of the energy utilization of system; Increase the fresh water productive rate, and reduce seawater corrosion on Equipment.
Description of drawings:
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is a Controlling System schematic diagram of the present invention.
Wherein, 1, seawater de-gassing vessel; 2, cooling system; 3, hot-water system; 4, condenser; 5, vaporizer; 7, water valve; 9, fresh water collection box; 11, pipe connecting; 12, water pump;
21, cooling water tank; 22, cooling tower; 23, cooling duct;
31, solar energy collector; 32, hot well tank; 33, water back;
41, circulating line; 41 ', circulating pipe;
51, fog nozzle; 52, outlet conduit;
131, resorber; 132, solution circulation pump; 133, solution heat exchanger; 134, producer; 135, lithium-bromide solution; 136, ventilating water pipe.
Embodiment:
Below be to further specify to of the present invention, rather than limitation of the present invention.
Embodiment 1:
As shown in Figure 1; A kind of solar absorption sea water desalinating plant of taking back thermal cycling comprises seawater de-gassing vessel 1, cooling system 2, hot-water system 3, condenser 4, vaporizer 5, water valve 7, sea water tank, fresh water collection box 9, Controlling System, the pipe connecting 11 that is used to remove noncondensable gas, the water pump 12 that is used to be installed in pipe connecting;
Cooling system 2 comprises cooling water tank 21, cooling tower 22, and cooling duct 23, the three is communicated with through pipe connecting 11, forms the circulation path, and is provided with water pump 12 and water valve 7 at pipe connecting 11, and cooling duct 23 is placed in the producer 134;
Hot-water system 3 comprises solar energy collector 31, hot well tank 32, and water back 33, the three is communicated with through pipe connecting 11, forms the circulation path, and is provided with water pump 12 and water valve 7 at pipe connecting 11, and water back 33 is placed in the resorber 131;
Sea water tank, seawater de-gassing vessel 1, vaporizer 5 threes are communicated with through pipe connecting 11; Form the circulation path; And establish water pump 12 and water valve 7 at pipe connecting 11; Establish fog nozzle 51 in the vaporizer 5; Fog nozzle 51 is communicated with through pipe connecting 11 with vaporizer 5, forms the circulation path, and is provided with water pump 12 and water valve 7 at pipe connecting 11; Vaporizer 5 is circumscribed with outlet conduit 52, establishes water valve 7 at outlet conduit 52;
Also comprise the absorption recycle system, the absorption recycle system comprises resorber 131, solution circulation pump 132, and solution heat exchanger 133, producer 134, four is connected through pipe connecting 11;
In resorber 131 and the producer 134 lithium-bromide solution 135 is arranged; Establish ventilating water pipe 136 in the solution heat exchanger 133; Ventilating water pipe 136 is connected with resorber 131 and producer 134; As shown in Figure 3; Solution circulation pump 132 is connected with Controlling System; Cooling duct 23 places resorber 131, and water back 33 places producer 134;
Condenser 4 is connected with fresh water collection box 9;
As shown in Figure 3, all water valves 7 are connected with Controlling System;
Establish circulating line 41 between condenser 4 and the vaporizer 5, circulating line 41 is located in condenser 4 and the vaporizer 5,
The connection that circulates mutually of the circulating pipe 41 ' of condenser 4 and cooling system 2.
Seawater through seawater de-gassing vessel 1; Form water smoke through low pressure fog nozzle 51; Be sprayed in the vaporizer 5, form water vapour, arrive fog nozzle 51 through water pump 12 circulate then; Again form water smoke; Be sprayed in the vaporizer 5, form water vapour, after the end; Seawater is discharged through outlet conduit 52, reduces the corrosion of seawater to vaporizer 5;
The water vapour that comes out from vaporizer 5 gets into resorber 131; The water vapour that the lithium-bromide solution 135 of resorber 131 absorbs in the vaporizer 5; Lithium-bromide solution 135 is thinning; Cooling duct 23 is taken away a large amount of latent heat that the water vapour in the resorber 131 sends simultaneously; Lithium-bromide solution 135 after thinning then is pressurized to solution heat exchanger 133 through solution circulation pump 132; The dense lithium-bromide solution 135 that ventilating water pipe 136 feeds producer 134, thus rare lithium-bromide solution 135 carries out heat exchange with dense lithium-bromide solution 135 in solution heat exchanger 133;
Rare lithium-bromide solution 135 from solution heat exchanger 133 gets into producer 134; And be sprayed onto 33 li of the water backs of producer 134; The boiling point of water is lower than lithium-bromide solution 135; Thereby water vapour is evaporated out; Make the lithium-bromide solution 135 in the producer 134 thicken; Dense lithium-bromide solution 135 feeds in the resorber 131 through ventilating water pipe 136 again, and carries out the next circulation that absorbs water vapour and rare steam that discharges water;
Rare water vapour of putting feeds in the condenser 4 from resorber 131, and the water vapour that condensation is later forms fresh water, and is collected in the fresh water collection box 9;
Rare water vapour of putting feeds in the condenser 4 from resorber 131; Water vapour gets into condenser 4; And in the process of condenser 4 condensations, can produce a large amount of heat of condensation, and the circulating line 41 in condenser 4 can be taken away the heat of condensation that is produced, heat gets into vaporizer 5 through circulating line 41.
Embodiment 2:
The process of producing fresh water has increased the process of producing refrigerated water simultaneously as as described in the embodiment 1, and as shown in Figure 2, the process of producing refrigerated water is following:
Rare water vapour of putting feeds in the condenser 4 from resorber 131; After water vapour gets into condenser 4; Form fresh water through condensation; And circulating pipe 41 ' is connected with cooling system 2 in the condenser 4; Water coolant gets into condenser 4 through circulating pipe 41 '; And cooling fresh water, form refrigerated water, realized producing simultaneously the purpose of fresh water and refrigerated water.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110303428XA CN102344179A (en) | 2011-09-29 | 2011-09-29 | Solar absorption type sea water desalination device with regenerative cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110303428XA CN102344179A (en) | 2011-09-29 | 2011-09-29 | Solar absorption type sea water desalination device with regenerative cycle |
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| CN102344179A true CN102344179A (en) | 2012-02-08 |
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| CN201110303428XA Pending CN102344179A (en) | 2011-09-29 | 2011-09-29 | Solar absorption type sea water desalination device with regenerative cycle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874969A (en) * | 2012-10-15 | 2013-01-16 | 程刚 | Interactive absorption type solar energy and wind energy sea water desalting device |
| CN104478025A (en) * | 2014-11-24 | 2015-04-01 | 中国科学院广州能源研究所 | Power-consumption-free solar middle-temperature and high-temperature pressure steam boiling and distillation system |
| CN105588342A (en) * | 2016-02-27 | 2016-05-18 | 山东大学（威海） | Solar heat collector and seawater desalination system comprising same |
| CN105698406A (en) * | 2016-03-15 | 2016-06-22 | 刘阳河 | Solar thermal collector with variable communicating hole area |
| CN106595120A (en) * | 2016-12-21 | 2017-04-26 | 上海理工大学 | Greenhouse heat supplying device |
| CN108692479A (en) * | 2017-02-24 | 2018-10-23 | 南京工业大学 | Closed spray cooling system using solar energy for refrigeration |
| CN110357343A (en) * | 2018-04-10 | 2019-10-22 | 金杰科技股份有限公司 | Energy-saving brine desalination system |
| WO2022126671A1 (en) * | 2020-12-16 | 2022-06-23 | 淄博环能海臣环保技术服务有限公司 | Water treatment device for concentrating, crystallizing and desalting high-salinity wastewater by means of lithium bromide unit |
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| CN102874969A (en) * | 2012-10-15 | 2013-01-16 | 程刚 | Interactive absorption type solar energy and wind energy sea water desalting device |
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| CN108692479A (en) * | 2017-02-24 | 2018-10-23 | 南京工业大学 | Closed spray cooling system using solar energy for refrigeration |
| CN110357343A (en) * | 2018-04-10 | 2019-10-22 | 金杰科技股份有限公司 | Energy-saving brine desalination system |
| WO2022126671A1 (en) * | 2020-12-16 | 2022-06-23 | 淄博环能海臣环保技术服务有限公司 | Water treatment device for concentrating, crystallizing and desalting high-salinity wastewater by means of lithium bromide unit |
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Application publication date: 20120208 |