Reverse Osmosis Fresh Water System For Ships
Product Overview
This equipment is a 20 metric tons per day integrated marine reverse osmosis (RO) seawater desalination system, specifically designed for various types of ocean-going vessels, engineering vessels, fishing boats, and offshore platforms. It employs a proven high-pressure reverse osmosis desalination process and features a modular, integrated structure adapted to the harsh marine environment characterized by ship motion, humidity, and salt fog corrosion.
The system is energy-efficient, low-consumption, and operates stably with high automation. The treated water meets standards for shipboard domestic and drinking freshwater and is compatible with classification society certification, making it a core piece of equipment for freshwater supply at sea.
Key Performance Parameters
| Rated Water Production |
20 m³/24h (at ambient temperature of 25°C and standard seawater salinity conditions) |
| Instantaneous Water Production |
0.85 m³/h |
| System Desalination Rate |
≥99.2% (after more than three years of stable operation) |
| Feed Water Quality |
Natural seawater, feed water salinity ≤40,000 mg/L |
| Product Water Quality |
TDS ≤ 500 mg/L, compliant with GB 5749-2022 standards, suitable for direct drinking and personal hygiene |
| System Recovery Rate |
35%-40% (optimal recovery rate for marine desalination) |
| Operating Pressure |
System high-pressure operating pressure 5.5-6.5 MPa |
| Operating Temperature |
Feedwater temperature 0°C-32°C; ambient operating temperature 0°C-45°C |
| Operating Humidity |
20%-90% (non-condensing, salt-fog environment) |
Electrical Operating Parameters
| Power Supply |
Three-phase AC 380 V/50 Hz; customizable for marine AC 440 V/60 Hz |
| Total Installed Power |
7.5 kW |
| Operating Power |
6.8 kW (standard full-load operation) |
| Protection Rating |
IP54 for the entire unit, suitable for humid and salt-fog environments |
| Control Method |
Fully automatic PLC intelligent control with comprehensive safety features |
System Process Flow
Seawater intake → Coarse filtration to trap impurities → Raw water booster pump
Marine-Grade Design: Specifically engineered for harsh marine environments with salt-fog corrosion resistance, ship motion adaptation, and high reliability for continuous operation at sea.