Product Description
The Double RO Seawater Desalination Equipment adopts the international advanced reverse osmosis technology and is designed by optimizing the system.
We have made a special design according to the particularity of the ship's application, which has the characteristics of small size, light weight, low land occupation, convenient installation and strong adaptability. It is suitable for offshore operation platforms, oil tankers, etc. The equipment is easy to operate and maintain. As long as sea water and power are provided, water can be produced after startup. The equipment has high desalination rate, stable performance, safety and reliability, and novel and ingenious design.
The system can effectively remove harmful components such as inorganic salts, heavy metal ions, organic bacteria and germs in seawater, and desalinate seawater into fresh water.
Scope of application: water production is 834L/ hours, and the fresh water produced is used to supply fresh water tanks, drinking water tanks, cooling water tanks, and distilled water tanks on board to meet the service requirements of domestic water and equipment water on board.
Product Parameters
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20TPD Double RO Seawater Desalination Equipment |
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| Model | WY-FSHB-20-2 |
| Water yield | 834 Litres per hour |
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RO product water quality |
TDS<50mg/L |
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Desalination rate |
>98.5% |
| Output water saltness |
<50mg/L |
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Recovery rate |
1st stage RO: 32% 2nd stage RO: 80% (Depending on temperature and inlet water quality) |
| Operation pressure |
1st RO：3.5~5.5Mpa 2nd RO：0.5~1.5Mpa |
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Power |
8.9KW |
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Voltage |
AC 380V / 50Hz / Three phase |
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Protection grade |
IP54 |
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Material composition |
SUS316 Stainless steel |
* 1. The amount of water produced refers to the amount of water produced under the conditions of an inlet water temperature of 25 ° C, a salt content of 35,000 mg/L, and an operating pressure of 5 MPa.
2. Equipment can be customized according to customer requirements.
System function
1. High-pressure unloading, when the high-pressure pump outlet pressure exceeds 6.2MPa, the equipment automatically stops and protects and emits an audible and visual alarm.
2. Low-pressure shutdown protection. When the pre-treatment water supply is insufficient and the high-pressure pump inlet pressure is lower than 0.05MPa, the protection action will be automatically stopped and an audible and visual alarm will be issued.
3. When the salt content of the fresh water exceeds the specified value, the unqualified fresh water is automatically discharged and an alarm signal is issued.
4. The pre-treatment is equipped with an manual multi-way valve for large-flow backwashing and full washing.
5. Configure the reverse osmosis membrane cleaning system to physically clean, chemically clean and refill the reverse osmosis membrane module.
Main accessories
● Feed Pump: SUS316L, CNP brand
● Multimedia Filter: Ø500x1750mm, FRP, 1pcs
● Precision Filter: 20" x 5μm, UPVC, 1pcs
● High Pressure Pump: SUS316L, Taiwan Diamond / PINFL / CNP brand
● Reverse Osmosis Membrane: 400, USA DOW/ TORAY/ HYDRANAUTICS brand
● Membrane Housing: 1000PSI(4pcs,FRP), 300PSI(3pcs, FRP)
● Rinse Tank: System matching
● CIP Chemical Cleaning Device: System matching
● Conductivity Meter: Createc
● Electric Element: Schneider brand
Equipment list
1. Water treatment equipment
2. User manual, Operation video*
3. Final document (product certificate, factory test report, packing list, equipment drawing)
4. Other consumables accessories
Please contact us for more details.
Mobile: +86 133 2668 2480(Steve)
+86 133 2665 7486(Abey)
Whatsapp: +86 137 9898 8771(Steve)
+86 159 1922 3536(Abey)
Email: abey@zhwywater.com
Process flow diagram
Features and advantages
● High quality imported high pressure pump with high operating efficiency, low energy consumption, low noise and long service life.
● High-quality reverse osmosis membrane with a salt rejection rate of 99.5%, strong anti-pollution ability and stable water quality.
● Rack piping and fittings are made of stainless steel and corrosion-resistant materials to ensure long-lasting equipment and low maintenance costs.
● The operation is simple and easy to use, and the maintenance is convenient. As long as there is electricity, there is sea water, and fresh water can be supplied immediately after the pipeline is started.
● Wide range of power supply: 220V~440V/50~60HZ.
● RO product water quality standard: in line with national drinking water standard <GB5749-2022>.
● Long service life: 15-20 years, rigorous process design to ensure long service life and low maintenance costs.
● The type of equipment combination can be realized: bracket type, armored type, brake type, container type, etc.
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Customer Cases
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Reverse Osmosis Technology
The reverse osmosis membrane is an artificial semipermeable membrane made of a semi-permeable membrane that has certain characteristics and is a core component of reverse osmosis technology.
The principle of reverse osmosis technology is to remove these substances and moisture according to the osmotic pressure of the solution, according to the fact that other substances cannot pass through the semipermeable membrane. The membrane pore size of the reverse osmosis membrane is very small, so that dissolved salts, colloids, microorganisms, organic matter, and the like in the water can be effectively removed.
The system has the advantages of good water quality, low energy consumption, no pollution, simple process and easy operation.
Applicable field
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| Ship | Island | Industrial process water |
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| Offshore working platform | Coastal water shortage area | Desert area |
