WO2009015511A1 - Procédé de dessalement d'eau de mer et de génération d'énergie électrique utilisant l'énergie solaire - Google Patents
Procédé de dessalement d'eau de mer et de génération d'énergie électrique utilisant l'énergie solaire Download PDFInfo
- Publication number
- WO2009015511A1 WO2009015511A1 PCT/CN2007/002293 CN2007002293W WO2009015511A1 WO 2009015511 A1 WO2009015511 A1 WO 2009015511A1 CN 2007002293 W CN2007002293 W CN 2007002293W WO 2009015511 A1 WO2009015511 A1 WO 2009015511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seawater
- power generation
- solar energy
- electric power
- solar
- Prior art date
Links
Classifications
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for 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
-
- 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
Definitions
- the present invention relates to seawater desalination, and more particularly to a method for desalination of seawater and power generation using solar energy.
- the cations of the salt in the seawater pass through the anode film and run toward the cathode. They cannot pass through the film and remain.
- the anions pass through the film to the anode and cannot pass through the film.
- the seawater in the pipeline where the salt ions are exchanged becomes fresh water
- the seawater in the pipeline left by the salt ions becomes the concentrated brine.
- the disadvantage of this technology is the high maintenance cost of the equipment; , also commonly known as ultrafiltration, is a semi-permeable membrane that allows only solvent to permeate and does not allow solute to permeate, separating seawater from fresh water. Under normal circumstances, fresh water diffuses through the semipermeable membrane to the seawater side.
- the liquid level on one side of the seawater is raised up to a certain height, and the process is infiltration.
- the static pressure of the water column higher than the water side is called the osmotic pressure, and if one side is applied to the seawater side, The external pressure of seawater osmotic pressure, then the pure water in seawater will reverse osmosis to fresh water.
- the disadvantage of this method is that the equipment is complicated and the investment cost is high.
- the object of the present invention is to overcome the deficiencies of the prior art and to provide a seawater desalination method with high energy utilization efficiency and simple equipment structure.
- a solar seawater desalination and power generation method characterized in that -
- Water vapor drives the steam turbine generator to generate electricity, and the water vapor is liquefied into pure water and recovered.
- the solar collector is a concentrating collector.
- the heat transfer oil is heated using a ceramic heating rod.
- the heat transfer oil is a high temperature silicone oil.
- the heat exchanger is a heating coil.
- the invention has the beneficial effects that: the solar energy is fully utilized, the energy utilization efficiency is high; the seawater is uniformly heated and evaporated, the generator runs smoothly, the seawater evaporation chamber has a high temperature, the concentrated brine left by evaporation is not easy to scale, and the concentrated brine is easily collected.
- FIG. 1 is a schematic view of a device in accordance with a preferred embodiment of the present invention.
- FIG. 1 a schematic diagram of a device for seawater desalination and power generation using solar energy.
- a concentrating collector 11 is used, and the condensing mirror is a parabolic mirror.
- the heating rod 12 is a ceramic heating rod, and its heat The efficiency is high and the heat loss is small, one end of which is heated by the heat collector 11 and the other end of which is inserted into the heater 20.
- the heater 20 is filled with silicone oil, which can work in the range of 50 to 350 Torr, and has good thermal stability.
- the silicone oil After the silicone oil is heated to 200 to 300 ° C, it is sent to the heating coil in the evaporator 40 by the oil guiding tube and the water pump 30, and the circulating water flows in the coil to heat the seawater in the evaporator 40 to evaporate, and the water vapor The temperature reaches 150 ° C ⁇ 250 ° C. After the seawater in the evaporator 40 is evaporated, when the concentration reaches 50%, the brine is extracted. The water vapor drives the steam turbine generator 50 to generate electricity, while being cooled to pure water, and is collected into the sump 60.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Description
太阳能海水淡化及发电方法 技术领域
本发明涉及海水淡化，尤其涉及一种利用太阳能淡化海水及发电 的方法。
背景技术
工业化的蓬勃发展与人口的急剧增加使人类面临淡水资源短缺 的难题，在这种背景下，把海水、苦咸水等含高盐量的水转化为生产、 生活用水的海水淡化技术得到空前迅猛的发展。 目前，淡化海水的方 法已有十种之多， 其中最为主要为： 蒸镏法， 蒸馏淡化过程的实质就 是水蒸气的形成过程， 包括设备蒸馏法、.蒸汽压缩蒸馏法、 多级闪急 蒸馏法等， 其缺点是能耗高， 海水淡化成本高； 电渗析淡化法是使用 一种离子交换膜实现的。在电场作用下，海水中盐类的阳离子穿过阳 膜跑向阴极方向， 不能穿过阴膜而留下来， 阴离子穿过阴膜跑向阳极 方向， 不能穿过阳膜而留下来， 这样， 盐类离子被交换走的管道中的 海水就成了淡水，而盐类离子留下来的管道里的海水就成了被浓缩了 的卤水， 这种技术的缺点是设备维护成本高； 反渗透法， 通常又称超 过滤法， 是利用只允许溶剂透过、不允许溶质透过的半透膜， 将海水 与淡水分隔开的， 在通常情况下， 淡水通过半透膜扩散到海水一侧， 从而使海水一侧的液面逐升高，直至一定的高度才停止， 这个过程为 渗透， 此时， 海水一侧高出的水柱静压称为渗透压， 如果对海水一侧 施加一大于海水渗透压的外压， 那么海水中的纯水将反渗透到淡水
中， 这种方法的缺点是设备复杂， 投资成本高。
发明内容
本发明的目的是克服现有技术的不足， 提供一种能源利用效率 高， 设备结构简单的海水淡化方法。
实现本发明目的的技术方案为：
一种太阳能海水淡化及发电方法， 其特征在于-
(1)利用太阳能集热器将导热油加热到 200°C~30(TC ;
(2)热导热油经热交换器将海水加热蒸发成为 150°C〜250°C水蒸 气， 蒸发形成的浓盐水被抽出制盐；
(3)水蒸汽带动汽轮发电机发电， 水蒸气液化成纯净水被回收。 在一种优选的技术方案中， 所述太阳能集热器为聚光集热器。 在一种优选的技术方案中， 利用陶瓷加热棒对导热油加热。
在一种优选的技术方案中， 所述导热油为高温硅胶油。
在一种优选的技术方案中， 所述热交换器为加热盘管。
本发明的有益效果： 太阳能被充分利用， 能源利用效率高； 海水 被均匀加热蒸发， 发电机运行平稳， 海水蒸发室内温度高， 蒸发留下 的浓盐水不易结垢， 容易收集浓盐水。
附图说明
图 1是根据本发明优选实施例的装置示意图。
具体实施方式
参考图 1,利用太阳能进行海水淡化及发电的装置示意图。 采用 聚光集热器 11， 聚光镜为抛物面镜。 加热棒 12为陶瓷加热棒， 其热
效率高， 热量损失小， 其一端由集热器 11加热， 另一端伸入到加热 器 20中。 加热器 20中盛有硅胶油， 其可以在 50~350Ό范围内工作， 热稳定性良好。 硅胶油被加热到 200~300°C后， 由导油管及水泵 30 输送到蒸发器 40中的加热盘管，在盘管中循环流动对蒸发器 40中的 海水加热， 使其蒸发， 水蒸气温度达到 150°C〜250°C。 蒸发器 40中 海水被蒸发后， 当浓度达到 50%时， 抽出浓盐水制盐。 水蒸气带动汽 轮发电机 50发电， 同时被冷却成纯净水， 被汇集到集水器 60中。
Claims
1. 一种太阳能海水淡化及发电方法， 其特征在于：
(1)利用太阳能集热器将导热油加热到 200°C〜300°C ;
(2) 热导热油经热交换器将海水加热蒸发成为 150°C~250°C水蒸 气， 蒸发形成的浓盐水被抽出制盐；
(3) 水蒸汽带动汽轮发电机发电， 水蒸气液化成纯净水被回收。
2. 根据权利要求 1所述的太阳能海水淡化及发电方法，其特征在 于： 所述太阳能集热器为聚光集热器。
3. 根据权利要求 1所述的太阳能海水淡化及发电方法，其特征在 于： 利用陶瓷加热棒对导热油加热。
4. 根据权利要求 1所述的太阳能海水淡化及发电方法，其特征在 于： 所述导热油为高温硅胶油。
5. 根据权利要求 1所述的太阳能海水淡化及发电方法，其特征在 于： 所述热交换器为加热盘管。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2007/002293 WO2009015511A1 (fr) | 2007-07-30 | 2007-07-30 | Procédé de dessalement d'eau de mer et de génération d'énergie électrique utilisant l'énergie solaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2007/002293 WO2009015511A1 (fr) | 2007-07-30 | 2007-07-30 | Procédé de dessalement d'eau de mer et de génération d'énergie électrique utilisant l'énergie solaire |
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| Publication Number | Publication Date |
|---|---|
| WO2009015511A1 true WO2009015511A1 (fr) | 2009-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2007/002293 WO2009015511A1 (fr) | 2007-07-30 | 2007-07-30 | Procédé de dessalement d'eau de mer et de génération d'énergie électrique utilisant l'énergie solaire |
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| WO (1) | WO2009015511A1 (zh) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910996A (zh) * | 2018-08-28 | 2018-11-30 | 曾庆福 | 一种太阳能海水淡化提盐及发电一体化系统 |
| CN110963541A (zh) * | 2019-12-11 | 2020-04-07 | 西安交通大学 | 自维持海水淡化系统及淡化方法 |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| US12040517B2 (en) | 2023-05-09 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
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| US4230531A (en) * | 1977-03-03 | 1980-10-28 | Fernandopulle Placidus D | Wind powered solar still |
| US4308111A (en) * | 1980-02-19 | 1981-12-29 | Pampel Leonard F | Distillation process |
| US6607639B1 (en) * | 2001-08-17 | 2003-08-19 | David E. Longer | Process for desalinization utilizing humidification/dehumidification |
| JP2004160301A (ja) * | 2002-11-11 | 2004-06-10 | Taira Maruyama | 淡水化装置 |
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| US4230531A (en) * | 1977-03-03 | 1980-10-28 | Fernandopulle Placidus D | Wind powered solar still |
| US4308111A (en) * | 1980-02-19 | 1981-12-29 | Pampel Leonard F | Distillation process |
| US6607639B1 (en) * | 2001-08-17 | 2003-08-19 | David E. Longer | Process for desalinization utilizing humidification/dehumidification |
| JP2004160301A (ja) * | 2002-11-11 | 2004-06-10 | Taira Maruyama | 淡水化装置 |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910996A (zh) * | 2018-08-28 | 2018-11-30 | 曾庆福 | 一种太阳能海水淡化提盐及发电一体化系统 |
| CN108910996B (zh) * | 2018-08-28 | 2023-12-08 | 广州汉华投资合伙企业(有限合伙) | 一种太阳能海水淡化提盐及发电一体化系统 |
| CN110963541A (zh) * | 2019-12-11 | 2020-04-07 | 西安交通大学 | 自维持海水淡化系统及淡化方法 |
| CN110963541B (zh) * | 2019-12-11 | 2021-04-13 | 西安交通大学 | 自维持海水淡化系统及淡化方法 |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11563229B1 (en) | 2022-05-09 | 2023-01-24 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11611099B1 (en) | 2022-05-09 | 2023-03-21 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11699803B1 (en) | 2022-05-09 | 2023-07-11 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| US12040517B2 (en) | 2023-05-09 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
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