Marine seawater desalination equipment solutions

Thread Content

Marine seawater desalination units are specifically designed with the particular requirements of fishing boats in mind; they are compact, lightweight, easy to install, and highly adaptable, allowing them to be installed in tight and crowded spaces such as ship cabins, decks, and corridors. This device is easy to operate and maintain; as long as there is seawater and electricity (220-380-415V/50HZ/60HZ), it can produce fresh water immediately after being started up. The equipment features a high desalination rate, stable performance, safety and reliability, an innovative design that eliminates the need for frequent cleaning, and no environmental pollution. Its frame is made of stainless steel, which is rust-resistant and corrosion-proof. It can be adapted for use on most ships in the country. The diluted water quality meets the **Standards for Drinking Water Quality (GB5749-2006)**. http://www.imarine.cn/forum.php?mod=attachment&aid=MjkwMjYwfDdjZTljMzFlfDE0NzIxODE0NDd8Mzk3MzIzfDYwODkzNg%3D%3D&noupdate=yes http://www.imarine.cn/forum.php?mod=attachment&aid=MjkwMjYxfDhiODQyMWQ0fDE0NzIxODE0NDd8Mzk3MzIzfDYwODkzNg%3D%3D&noupdate=yes http://www.imarine.cn/forum.php?mod=attachment&aid=MjkwMjYyfDVmZDllMjkxfDE0NzIxODE0NDd8Mzk3MzIzfDYwODkzNg%3D%3D&noupdate=yes The ultimate solution to the problem of draft on a ship is to be able to supply one’s own potable water and drinking water. Before the 1990s, people talked a lot but did little, as equipment was expensive and complex to operate; the time spent working was less than the time required for maintenance, and the occurrence of faults made people feel that such equipment was unnecessary, leading to a decline in enthusiasm. With the continuous emergence of new scientific and technological materials, the advantages and disadvantages of previous domestic and foreign equipment were analyzed, resulting in the development of a seawater desalination unit with a low maintenance rate. Through practical use on ships, it has been found to be convenient and reliable, with a guaranteed water production volume. Based on the experience gained from the previous prototype, significant modifications were made to the marine desalination machine. Depending on the number of people on board and their needs, the equipment can vary in size; it can be of an integrated or modular design. The primary treated water is used as domestic water (equivalent to tap water), while the secondary treated water is suitable for direct consumption as drinking water (with all hygienic and toxicological parameters meeting the GB-17324 standards). 　　(1) Reverse osmosis membrane separation technology is used for seawater desalination. This technology is recognized worldwide as the most advanced desalination technique to date. The core components of this series of marine products are equipped with first-class foreign products, while the manufacturing processes and operating parameters are optimized through computer technology. 　　(2) The reverse osmosis desalination process does not require heating of seawater; it operates at room temperature without any phase change, thus resulting in low energy consumption and low water production costs. 　　(3) This product is specially designed with full consideration for the unique characteristics of ships. It is small in size, light in weight, occupies little space, is easy to install, and has strong adaptability; it can be installed in cramped spaces such as engine rooms, decks, crew quarters, and corridors. The piping in the frame is made of stainless steel and corrosion-resistant materials. The power supply has a wide range of compatibility (220V(440)/60HZ, 380V/50HZ). (4) It is simple to operate and easy to maintain. As long as there is electricity and seawater, fresh water can be supplied immediately after startup. 　　(5) The reverse osmosis membrane has a high desalination efficiency, as well as stable performance and is safe and reliable. The water quality has been diluted to meet the **Standards for Drinking Water Quality (GB5749-85); no chemicals are added, making it safe to drink straight from the source, with a sweet and mild taste. 　　(6) This seawater desalination unit is at the same technical and quality level as the small marine seawater desalination units produced in the United States, Japan, and other countries. 　　Process Flow and Equipment Specifications: Machine room seawater pump → Sterilization system → Pipeline pressure pump → Bag filter → Precision filter → Ultrafiltration system → High-pressure pump → Reverse osmosis system → UV sterilizer → Intermediate pressure pump → Primary filtration → Secondary filtration → High/low pressure switch → High-pressure pump → Small reverse osmosis system → Activated carbon filter → UV sterilizer → Potable water. The above process is arranged in three sections: 1. Pre-treatment section: Machine room seawater pump, sterilization system, pipeline pressure pump, and bag filter, which can be placed reasonably depending on the available space on the ship. 　　2. Main unit: precision filter, ultrafiltration unit, high-pressure pump, reverse osmosis system, and UV sterilizer. This section is tentatively intended to be designed as an integrated unit; however, it can also be installed separately if space on the ship is limited. 　　3. Direct drinking water section: primary filtration, secondary filtration, high/low pressure switch, high-pressure pump, small-scale reverse osmosis system, activated carbon filter, UV sterilizer. The direct drinking water unit can be considered for wall mounting, with approximate dimensions of 600mm×500mm×400mm.