69av免费视频-69av免费观看-6969精品视频在线观看-67194老司机精品午夜-亚洲综合视频-亚洲综合射

What is the working principle of seawater desalination equipment?

scanning: author: from: time:2023-06-28 classify:Industry Information

Seawater desalination equipment is often used to obtain fresh water from various ships, offshore platforms, islands and other fields, mainly using distillation and Anti-Infiltration Act. What principle does it use to turn seawater into fresh water.

ING_36822_01339

Principle of distillation method:

Distillation method is a method of simulating the natural water cycle. Seawater evaporates from the heat of the sun to form clouds, which condense into rain when cooled in the high air. The falling rain is freshwater. Using this main principle, various distillation desalination technologies have been developed, but they all involve converting electrical energy into thermal energy or using waste heat to evaporate water molecules from seawater into water vapor, achieving saltwater separation and then cooling to produce fresh water. This method is a traditional dilution method, but after continuous improvement, it still holds an important position to this day.


Principle of Anti-Infiltration Act method:

Reverse osmosis membrane is a kind of Semipermeable membrane with selective permeability, which allows water molecules to pass through. When the same volume of fresh water and seawater are placed on both sides of the membrane, the water molecules in the fresh water will naturally pass through the Semipermeable membrane and flow to the seawater side spontaneously, a natural phenomenon called osmosis.

When the flow stops, the water level on the seawater side will be higher than the fresh water level by a certain height, which forms a pressure difference, which is called Osmotic pressure.

案例2


If a pressure greater than Osmotic pressure is applied to the seawater side, the flow direction of water molecules will be opposite to the original seepage direction, and start to flow from the seawater side to the fresh water side. This process is called reverse osmosis.


By utilizing this principle, a high-pressure pump is used to pressurize seawater, allowing water molecules in the seawater to pass through a reverse osmosis membrane, thereby achieving the separation of water and salt.


The above are the desalination principles of two commonly used seawater desalination devices. With the advancement of technology and the continuous reduction of desalination costs, seawater desalination devices will be more widely used.



主站蜘蛛池模板: 91在线精品亚洲一区二区 | 在线免费视频国产 | 欧美韩日| 国产精品久久久久久久y | 国产精品成久久久久三级 | 日韩视频一区二区在线观看 | 伊人影院久久 | 91中文视频 | 亚洲另类欧美日韩 | 亚洲另类在线观看 | 在线日韩理论午夜中文电影 | 亚欧精品在线观看 | 国产在线观看中文字幕 | 久久这里只有精品国产 | 999国产精品999久久久久久 | 亚洲最新视频在线观看 | 亚洲欧美日韩在线2020 | 8x成人在线 | 亚洲一区精品伊人久久 | 亚洲国产日韩在线精品频道 | 亚洲一区二区在线成人 | 在线观看国产视频 | 日韩第七页 | 亚洲黄色高清 | 国产第一页在线视频 | 视频一区二区三区欧美日韩 | 国产成人精品aaaa视频一区 | 在线观看免费国产视频 | 一区二区三区在线视频播放 | 亚洲视频在线观看免费 | 精品视频二区 | 亚洲综合精品一区二区三区中文 | 国产成人综合一区精品 | 日韩精品免费视频 | 欧美中日韩在线 | www日韩| 日韩不卡一区二区 | 国产手机视频在线观看 | 日本黄 色 成 年 人免费观看 | 久久一次 | 国产成人精品久久亚洲高清不卡 |