CN101973598A - Spray evaporating air-moistening de-humidity type solar sea water desalinating device - Google Patents
Spray evaporating air-moistening de-humidity type solar sea water desalinating device Download PDFInfo
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- CN101973598A CN101973598A CN201010509740XA CN201010509740A CN101973598A CN 101973598 A CN101973598 A CN 101973598A CN 201010509740X A CN201010509740X A CN 201010509740XA CN 201010509740 A CN201010509740 A CN 201010509740A CN 101973598 A CN101973598 A CN 101973598A
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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
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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
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
- Y02A20/20—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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Abstract
The invention relates to a spray evaporating air-moistening de-humidity type solar sea water desalinating device, which belongs to the technical field of solar sea water desalination. The device comprises a solar air collector, a solar vapor collector, a spray evaporator, an air filter, a condensing regenerator and a condensing heat exchanger, wherein the output end of the solar air collector and a sea water input source are respectively connected with a nozzle of the spray evaporator; the solar vapor collector is connected with a radiating pipe of the spray evaporator; the output end of the spray evaporator is connected with the air filter, the condensing regenerator and the condensing heat exchanger in series in sequence; the air output end of the condensing regenerator is connected with the solar air collector; and the output end of the condensing heat exchanger outputs fresh water. The device adopts the processes of air moisture absorption and de-humidity for desalinating sea water, and can be in well operation at a normal pressure, and a vacuum pump is omitted. In addition, the sea water is atomized and heated by an air-sea water mixed spray technique, and the evaporation efficiency is enhanced.
Description
Technical field
What the present invention relates to is the device in a kind of desalination with Solar Energy field, specifically is that a kind of spray evaporation air moistening of mini type high temperature normal pressure operation removes the wet type solar energy sea water desalination apparatus.
Background technology
Along with constantly development and social constantly progressive of human civilization, shortage of water resources has become the significant problem that the 21 century mankind face.China's water resources situation allows of no optimist more, and as one of 13 lack of water countries in the world, occupancy volume only is equivalent to 1/4 of world average level water resources year per capita, and the lack of water city accounts for 2/3 of National urban.Tellurian seawater resources are very abundant, and 97% water and is wherein containing a large amount of fresh water all in the ocean.Development sea water desaltination cause is to solve China's fresh water grand strategy approach in short supply.At present sea water desalinating plant all utilized basically this reserves of sun power infinitely, the renewable energy resources of cleaning fully, but because the heat collector temperature is low, and vaporization efficiency is low, device is complicated, corrosion resistance nature is not enough and can't promote well.
Find traditional horizontal tube falling film evaporation multiple-effect back-heating type (Chinese invention patent application number 01240510.8), the flash distillation multiple-effect back-heating type (Chinese invention patent application number 200510042840.5) of the general employing of disclosed various solar energy sea water desalination apparatus patent at present through retrieval to prior art.Above-mentioned technology has some common problems to make to be difficult to commercialization to be promoted the use of.The one, multistage backheat mode makes that device is huge and complicated, the 2nd, these solar energy sea water desalination apparatus must use vacuum pump to keep low pressure operation, for this sealing requirements to device is very high, and vacuum pump is relatively more expensive, and long time continuous working damages easily.Therefore yet there are no middle-size and small-size solar energy sea water desalination apparatus commercialization uses.On thermodynamic principles, utilize under the differing temps air saturation humidity different and carry out air moisture absorption and dehumidification process to carry out sea water desaltination also be a kind of feasible technology, this be a kind of after making evaporation of seawater humidification dry air dehumidification by condensation obtain the method for fresh water.
Further retrieval finds that spraying propulsion ventilation evaporates a condensing desalination process and device (Chinese invention patent application number 00109939.6), the method for desalting seawater of Bubbling method in the evaporation of seawater jar (Chinese invention patent application number 03144279.X) etc.These patents are feasible on principle, but some does not consider the seawater energy balance in when gasification, removes the heating and gasifying seawater with air fully, in fact may not realize circulation.Some needs equipment various, and twice circulating and evaporating makes device too complicated.In addition, the solar energy heating actuator temperature is not high now also is that solar energy sea water desalination apparatus overall thermal efficiency and vaporization efficiency are low, is difficult to a commercial major cause.
Summary of the invention
The present invention is directed to the prior art above shortcomings, provide a kind of spray evaporation air moistening to remove the wet type solar energy sea water desalination apparatus, utilize under the differing temps air saturation humidity different and carry out the air moisture absorption and dehumidification process carries out sea water desaltination, can use with middle high-temp solar heat collector coupling, can under normal pressure, move, the needing no vacuum pump, can only need a kind of air can finish whole sea water desaltination circulation according to solar energy heating actuator temperature (more than heat-collecting temperature 100 degree) and the spontaneous adjusting evaporator temperature of power and the system water yield as cycle fluid.
The present invention is achieved by the following technical solutions, the present invention includes: solar energy air heat collector, solar energy water steam heat collector, spray evaporator, air filter, condensation regenerator and condensing heat exchanger, wherein: the output terminal of solar energy air heat collector and seawater input source are connected with the spout of spray evaporator respectively, solar energy water steam heat collector is connected with the heat-exchanging tube bundle of spray evaporator, the output terminal of the spray evaporator air filter of connecting successively, condensation regenerator and condensing heat exchanger, the air output terminal of condensation regenerator is connected with solar energy air heat collector, the output terminal output fresh water of condensing heat exchanger.
Described solar energy air heat collector and solar energy water steam heat collector are solar collecting device and heat energy are provided, after the heat-collecting temperature of solar energy water steam heat collector surpasses 100 degree, its inner recirculated water is heated into saturated or overheated steam flows through vaporizer, form with wetting vapour or saturation water after the condensation heat release flows back to heat collector and realize the isothermal heat release in spray evaporator, thereby makes evaporation and heat-exchange efficient and full cycle thermo-efficiency all very high.
The input port of described condensation regenerator and condensing heat exchanger is equipped with gas-liquid separator,
Described spray evaporator comprises: housing, air-sea water mixing nozzle, vaporizer heat-exchanging tube bundle and air nozzle, wherein: air-sea water mixing nozzle is fixedly set in the intravital top of shell and its input terminus is connected with the output terminal and the seawater input source of solar energy air heat collector, the vaporizer heat-exchanging tube bundle is fixedly set in the intravital middle part of shell and is connected with solar energy water steam heat collector, air nozzle is fixedly set in the intravital bottom of shell and its input terminus is connected with the output terminal of solar energy air heat collector, the heat exchanging pipe of this spray evaporator adopts two-way stainless material to make, its inwall uses the heat insulating work plastics to make, and has the effect that insulation prevents sea-water corrosion.
The present invention carries out work in the following manner: air is a cycle fluid, high temperature air pressurization back and sea water mixing preheating from solar energy air heat collector, from the two-phase mixing sprayer, spray into vaporizer, can in vaporizer, obtain very tiny spraying droplet like this, burn as the petrol motor injected petrol.Flow through horizontal heating pipe line in the vaporizer from the high-temperature vapor of solar energy water steam heat collector, tiny seawater water droplet and high temperature air mix contact absorb heat after, contact with heating tube again and carry out the falling film evaporation heat absorption, this tube bank drop type of heating makes that the heating evaporation in the vaporizer is very efficient.The vaporizer bottom also sprays high temperature air with row's nozzle in vaporizer, the disturbance liquid film is strengthened the liquid film evaporation and heat-exchange, and necessary recirculated air flow is provided simultaneously.
The present invention is by high-temp solar heat collector, and the flow working medium Heating temperature is higher than 100 ℃; Full cycle has only the one-level backheat, and system water efficient depends on the solar energy heating actuator temperature, and after the heat collector temperature released souls from purgatory 100 degree, system water efficient and traditional horizontal tube falling film evaporation multiple-effect back-heating type were suitable.It is low and cause thermo-efficiency and the low problem of vaporization efficiency to the invention solves present heat collector temperature.Use air moisture absorption and dehumidification process to carry out the sea water desaltination principle, removed vacuum pump from, device can fine operation under normal pressure.Use air-sea water mixing spray technique atomizing in addition and add hot sea water, improve vaporization efficiency.
Description of drawings
Fig. 1 structural representation of the present invention.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: solar energy air heat collector 1, solar energy water steam heat collector 2, spray evaporator 3, air filter 4, condensation regenerator 5 and condensing heat exchanger 6, wherein: the output terminal of solar energy air heat collector 1 and seawater input source 7 are connected with the spout of spray evaporator 3 respectively, solar energy water steam heat collector 2 is connected with the heat-exchanging tube bundle 10 of spray evaporator 3, the output terminal of spray evaporator 3 air filter 4 of connecting successively, condensation regenerator 5 and condensing heat exchanger 6, the air output terminal of condensation regenerator 5 is connected with solar energy air heat collector 1, the output terminal output fresh water of condensing heat exchanger 6.
Described solar energy air heat collector 1 and solar energy water steam heat collector 2 are solar collecting device, solar energy water steam heat collector 2 provides main heat energy, after the heat-collecting temperature of solar energy water steam heat collector 2 surpasses 100 degree, its inner recirculated water is heated into saturated or overheated steam flows through vaporizer, form with wetting vapour or saturation water after the condensation heat release flows back to heat collector and realize the isothermal heat release in spray evaporator 3, thereby makes evaporation and heat-exchange efficient and full cycle thermo-efficiency all very high.
Described spray evaporator 3 comprises: housing 8, air-sea water mixing nozzle 9, vaporizer heat-exchanging tube bundle 10 and air nozzle 11, wherein: top and its input terminus that air-sea water mixing nozzle 9 is fixedly set in the housing 8 are connected with the output terminal and the seawater input source 7 of solar energy air heat collector 1, vaporizer heat-exchanging tube bundle 10 is fixedly set in the middle part in the housing 8 and is connected with solar energy water steam heat collector 2, bottom and its input terminus that air nozzle 11 is fixedly set in the housing 8 are connected with the output terminal of solar energy air heat collector 1, the heat exchanging pipe of this spray evaporator 3 adopts two-way stainless material to make, its inwall uses the heat insulating work plastics to make, and has the effect that insulation prevents sea-water corrosion.
The bottom of described spray evaporator 3 is provided with circulating seawer case 12 to collect unnecessary seawater.
The input port of described condensation regenerator 5 and condensing heat exchanger 6 is equipped with gas-liquid separator 13, the acting as of this gas-liquid separator 13: isolate the liquid water of being taken out of by recirculated air.
Be equipped with holder 14 between the air output terminal of the input terminus of described solar energy air heat collector 1 and condensation regenerator 5 and between the output terminal of the input terminus of described solar energy water steam heat collector 2 and spray evaporator 3, the acting as of this holder 14: store working medium and stable working medium temperature.
Described air filter 4 is that the strainer of KSJM-ZQ is achieved with the model of the triumphant all petrochemical equipments machinery in Shanghai company limited specifically in the present embodiment.
The interchanger that described condensation regenerator 5 is BR 0.25 with the super model of insulting heat power equipment company limited in Guangzhou specifically in the present embodiment is achieved.
The interchanger that described condensing heat exchanger 6 is BR 0.25 with the super model of insulting heat power equipment company limited in Guangzhou specifically in the present embodiment is achieved, and the output terminal of this condensing heat exchanger 6 is provided with fresh-water tank 15.
Present embodiment carries out work in the following manner: recirculated air heats up after absorbing sun power earlier from solar energy air heat collector 1, extract portion of air through the high-pressure air pump 16 and the sea water mixing of coming out from sea-water pump 17, ejection from nozzle 9 together, remaining air enters spray evaporator 3 through air nozzle 11.Seawater water droplet falling film evaporation on heat-exchanging tube bundle 10 of atomizing.Saturated moist air behind the absorption water vapour is come condensation regenerator 5 through strainer 4 earlier and is carried out backheat with circulated drying air, and condensation goes out a part of fresh water after the cooling.Remaining wet air carries out condensation cooling back condensation once more through condensing heat exchanger 6 and goes out a part of fresh water.Air is finished a circulation after pneumatic pump 18 is got back to solar energy air heat collector 1.
Become water vapour after absorbing sun power in the recirculated water elder generation process in the solar energy water steam heat collector 2, then flow through heat transfer tube 10 and the outer seawater heat exchange of pipe, pass through holder 14 then, process water pump 19 is got back to solar energy water steam heat collector 2 at last.
During concrete work, when solar energy air heat collector 1 out temperature is respectively 80 ℃ and 120 ℃, power is 2kW.The recirculated air flow is 1.2kg/min, and the seawater flow that enters spray evaporator 3 is 1.8kg/min.Water vapour flow in the solar energy water steam heat collector 2 is 1.08kg/min, imports and exports and is respectively 100 ℃ of saturation waters and 100 ℃ of water vapour, and power is 38kW.The wet air temperature is 90 ℃ of (conservative calculating in the spray evaporator 3; Relative humidity 80%, per kilogram dry air water content 0.7383kg), condensing heat exchanger 6 temperature outs are 40 ℃ (relative humidity 100%, per kilogram dry air water content 0.0495kg), then per hour obtain fresh water 49.6kg.Thermo-efficiency of this device or system water efficient depend on the moisture absorption temperature of air in vaporizer and little in the dehumidifying temperature and the backheat relation of interchanger end, therefore adopt the one-level backheat enough.
Claims (7)
1. a spray evaporation air moistening removes the wet type solar energy sea water desalination apparatus, comprise: solar energy air heat collector, solar energy water steam heat collector, spray evaporator, air filter, condensation regenerator and condensing heat exchanger, it is characterized in that: the output terminal of solar energy air heat collector and seawater input source are connected with the spout of spray evaporator respectively, solar energy water steam heat collector is connected with the radiating pipe of spray evaporator, the output terminal of the spray evaporator air filter of connecting successively, condensation regenerator and condensing heat exchanger, the air output terminal of condensation regenerator is connected with solar energy air heat collector, the output terminal output fresh water of condensing heat exchanger;
Described spray evaporator comprises: housing, air-sea water mixing nozzle, vaporizer heat-exchanging tube bundle and air nozzle, wherein: air-sea water mixing nozzle is fixedly set in the intravital top of shell and its input terminus is connected with the output terminal and the seawater input source of solar energy air heat collector, the vaporizer heat-exchanging tube bundle is fixedly set in the intravital middle part of shell and is connected with solar energy water steam heat collector, and air nozzle is fixedly set in the intravital bottom of shell and its input terminus is connected with the output terminal of solar energy air heat collector.
2. spray evaporation air moistening according to claim 1 removes the wet type solar energy sea water desalination apparatus, it is characterized in that, described solar energy air heat collector and solar energy water steam heat collector are solar collecting device and heat energy are provided, after the heat-collecting temperature of solar energy water steam heat collector surpasses 100 degree, its inner recirculated water is heated into saturated or overheated steam flows through vaporizer, and the form with wetting vapour or saturation water after the condensation heat release flows back to heat collector and realize the isothermal heat release in spray evaporator.
3. spray evaporation air moistening according to claim 1 and 2 removes the wet type solar energy sea water desalination apparatus, it is characterized in that the heat exchanging pipe of described spray evaporator adopts two-way stainless material to make, and its inwall uses the heat insulating work plastics to make.
4. spray evaporation air moistening according to claim 1 removes the wet type solar energy sea water desalination apparatus, it is characterized in that the bottom of described spray evaporator is provided with the circulating seawer case to collect unnecessary seawater.
5. spray evaporation air moistening according to claim 1 removes the wet type solar energy sea water desalination apparatus, it is characterized in that, the input port of described condensation regenerator and condensing heat exchanger is equipped with gas-liquid separator, the acting as of this gas-liquid separator: isolate the liquid water of being taken out of by recirculated air.
6. spray evaporation air moistening according to claim 1 removes the wet type solar energy sea water desalination apparatus, it is characterized in that, be equipped with holder between the air output terminal of the input terminus of described solar energy air heat collector and condensation regenerator and between the output terminal of the input terminus of described solar energy water steam heat collector and spray evaporator, the acting as of this holder: store working medium and stable working medium temperature.
7. spray evaporation air moistening according to claim 1 removes the wet type solar energy sea water desalination apparatus, it is characterized in that the output terminal of described condensing heat exchanger is provided with fresh-water tank.
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| CN102381712A (en) * | 2011-10-20 | 2012-03-21 | 中国恩菲工程技术有限公司 | Equipment for treating solution containing silicon tetrachloride |
| CN102502654A (en) * | 2011-10-20 | 2012-06-20 | 中国恩菲工程技术有限公司 | Method for treating solution containing silicon tetrachloride |
| CN102557175A (en) * | 2011-11-19 | 2012-07-11 | 江苏同盛环保技术有限公司 | Device adopting dual-heat-source spray evaporation seawater desalination technology |
| CN102674491A (en) * | 2012-05-14 | 2012-09-19 | 上海交通大学 | Seawater desalination device |
| CN102730779A (en) * | 2012-07-24 | 2012-10-17 | 天津城市建设学院 | Solar zero-liquid-discharge sea water desalting plant and method |
| CN102815757A (en) * | 2012-08-08 | 2012-12-12 | 深圳市洁驰科技有限公司 | Seawater desalination apparatus |
| CN102992532A (en) * | 2012-12-25 | 2013-03-27 | 集美大学 | Air type immersing distillation-multiple-effect evaporation seawater desalting device and method |
| CN104114250A (en) * | 2012-04-25 | 2014-10-22 | 盐场科技有限公司 | Modular humidification-dehumidification apparatus for concentrating solutions |
| CN105174341A (en) * | 2015-10-27 | 2015-12-23 | 浙江海盐力源环保科技股份有限公司 | Treatment device using solar energy for evaporating waste water |
| CN106006809A (en) * | 2016-07-15 | 2016-10-12 | 潍坊强胜新能源有限公司 | Solar thermal-driven injecting-sputtering multi-effect combined type seawater desalination system |
| CN107381697A (en) * | 2017-08-29 | 2017-11-24 | 华南理工大学 | A kind of high efficiency solar sea water desalinating unit |
| CN107651720A (en) * | 2017-11-06 | 2018-02-02 | 桑夏太阳能股份有限公司 | A kind of multistage humidification dehumidification type sea water desalinating unit with loop type gravity assisted heat pipe structure |
| CN108101135A (en) * | 2018-03-06 | 2018-06-01 | 晋江纳创新环境技术有限公司 | Solar energy is atomized desalination plant |
| CN108195016A (en) * | 2013-09-12 | 2018-06-22 | 格雷迪安特公司 | Humidifier apparatus, condenser device and bubble column condenser |
| CN110563234A (en) * | 2019-09-02 | 2019-12-13 | 龚建国 | low-energy-consumption seawater desalination system and method |
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| CN112978828A (en) * | 2021-03-15 | 2021-06-18 | 山东建筑大学 | Humidification-temperature-increasing type brackish water desalination treatment system and method for solar agricultural greenhouse in winter |
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| CN102381712A (en) * | 2011-10-20 | 2012-03-21 | 中国恩菲工程技术有限公司 | Equipment for treating solution containing silicon tetrachloride |
| CN102557175A (en) * | 2011-11-19 | 2012-07-11 | 江苏同盛环保技术有限公司 | Device adopting dual-heat-source spray evaporation seawater desalination technology |
| CN104114250A (en) * | 2012-04-25 | 2014-10-22 | 盐场科技有限公司 | Modular humidification-dehumidification apparatus for concentrating solutions |
| CN104114250B (en) * | 2012-04-25 | 2016-08-24 | 苏特沃克技术有限公司 | For concentrating the modularization humidifying-dehumidifying device of solution |
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| CN102730779A (en) * | 2012-07-24 | 2012-10-17 | 天津城市建设学院 | Solar zero-liquid-discharge sea water desalting plant and method |
| CN102815757B (en) * | 2012-08-08 | 2014-10-22 | 深圳市洁驰科技有限公司 | Seawater desalination apparatus |
| CN102815757A (en) * | 2012-08-08 | 2012-12-12 | 深圳市洁驰科技有限公司 | Seawater desalination apparatus |
| CN102992532B (en) * | 2012-12-25 | 2014-04-30 | 集美大学 | Air type immersing distillation-multiple-effect evaporation seawater desalting device and method |
| CN102992532A (en) * | 2012-12-25 | 2013-03-27 | 集美大学 | Air type immersing distillation-multiple-effect evaporation seawater desalting device and method |
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