Marine water machine technology principle
During the operation of a ship, a considerable amount of fresh water is consumed every day to meet the needs of power plant operation and crew water use. The freshwater required by the ship can be carried from the departure harbor, but this will inevitably occupy a certain amount of cabin capacity, affect the tonnage, and once the navigational situation changes, the freshwater brought is not only quantitative but also qualitative. It is difficult to meet the demand, especially for special vessels that have long-haul ocean-going vessels and longer operating hours, the mobility of water storage is very necessary. The use of the ship’s own capabilities to manufacture fresh water can be readily available fresh, qualified, and adequate. The freshwater brings both performance and economic benefits. Modern ocean-going ships are equipped with seawater desalination devices and are often called water generators. There are many ways to make seawater light, such as distillation method and reverse osmosis method. Because reverse osmosis water generator has the advantages of simple operation, easy installation and low cost, it has been installed and used by most ships.
The marine water generator consists of a pretreatment system, a reverse osmosis system, an electrical control system, a cleaning system, and a dosing system.
The pretreatment system includes a water supply pump, a multi-media filter, a precision filter, and a security filter. It mainly processes large-particle impurities, residual chlorine, and fine particles contained in raw water to ensure the influent water quality of the reverse osmosis system.
The reverse osmosis system includes a high-pressure pump, a reverse osmosis membrane module, a pressure regulating valve, and a cleaning tank, and the raw water that has been pretreated is further processed into fresh water.
The seawater desalination process for marine water generators is:
The sea water is pumped into the pretreatment system by a water supply pump, and after the chemical dosing system is added with a bactericide and a flocculant, it enters the quartz sand and activated carbon filtration system for filtration. The seawater enters the high-pressure pump after the pretreatment system and flows through the high-salt-rate roll membrane under the action of the high-pressure pump. The pressure is increased by controlling the pressure regulator valve so that part of the pure water in the seawater passes through the membrane and enters the porous collection tube via the soft Tubes flow out of the equipment, and salt is trapped on the surface of the membrane along with most of the seawater. After the filtered water passes through water quality reduction, pH adjustment, and scale inhibitor addition, it enters the 5um security filter system. The filtered low-pressure seawater enters the high-pressure pump all the way, and the Other way enters the pressure-exchange energy recovery device. The boosted seawater passes through The booster pump is pressurized and mixed with the high pressure pump effluent to enter the reverse osmosis membrane stack system. A part of the high-pressure seawater under the treatment of the membrane stack forms fresh water through the membrane and enters a fresh water tank for storage after the water quality is adjusted. The rest of the high-pressure concentrated water enters the pressure exchange energy recovery device to recover energy and discharge it.
The core components of the FH-FWG marine water generator produced by Zhuhai Fanghai Water Treatment Equipment Co., Ltd. are equipped with foreign products. The seawater desalination process and equipment operating parameters have been optimized by computer to achieve advanced technology in the seawater desalination equipment industry. level.
During the operation of a ship, a considerable amount of fresh water is consumed every day to meet the needs of power plant operation and crew water use. The freshwater required by the ship can be carried from the departure harbor, but this will inevitably occupy a certain amount of cabin capacity, affect the tonnage, and once the navigational situation changes, the freshwater brought is not only quantitative but also qualitative. It is difficult to meet the demand, especially for special vessels that have long-haul ocean-going vessels and longer operating hours, the mobility of water storage is very necessary. The use of the ship’s own capabilities to manufacture fresh water can be readily available fresh, qualified, and adequate. The freshwater brings both performance and economic benefits. Modern ocean-going ships are equipped with seawater desalination devices and are often called water generators. There are many ways to make seawater light, such as distillation method and reverse osmosis method. Because reverse osmosis water generator has the advantages of simple operation, easy installation and low cost, it has been installed and used by most ships.
The marine water generator consists of a pretreatment system, a reverse osmosis system, an electrical control system, a cleaning system, and a dosing system.
The pretreatment system includes a water supply pump, a multi-media filter, a precision filter, and a security filter. It mainly processes large-particle impurities, residual chlorine, and fine particles contained in raw water to ensure the influent water quality of the reverse osmosis system.
The reverse osmosis system includes a high-pressure pump, a reverse osmosis membrane module, a pressure regulating valve, and a cleaning tank, and the raw water that has been pretreated is further processed into fresh water.
The seawater desalination process for marine water generators is:
The sea water is pumped into the pretreatment system by a water supply pump, and after the chemical dosing system is added with a bactericide and a flocculant, it enters the quartz sand and activated carbon filtration system for filtration. The seawater enters the high-pressure pump after the pretreatment system and flows through the high-salt-rate roll membrane under the action of the high-pressure pump. The pressure is increased by controlling the pressure regulator valve so that part of the pure water in the seawater passes through the membrane and enters the porous collection tube via the soft Tubes flow out of the equipment, and salt is trapped on the surface of the membrane along with most of the seawater. After the filtered water passes through water quality reduction, pH adjustment, and scale inhibitor addition, it enters the 5um security filter system. The filtered low-pressure seawater enters the high-pressure pump all the way, and the Other way enters the pressure-exchange energy recovery device. The boosted seawater passes through The booster pump is pressurized and mixed with the high pressure pump effluent to enter the reverse osmosis membrane stack system. A part of the high-pressure seawater under the treatment of the membrane stack forms fresh water through the membrane and enters a fresh water tank for storage after the water quality is adjusted. The rest of the high-pressure concentrated water enters the pressure exchange energy recovery device to recover energy and discharge it.
The core components of the FH-FWG marine water generator produced by Zhuhai Fanghai Water Treatment Equipment Co., Ltd. are equipped with foreign products. The seawater desalination process and equipment operating parameters have been optimized by computer to achieve advanced technology in the seawater desalination equipment industry. level.
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