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JWP freshwater generator:Desalt JWP-16-C Series

JWP freshwater generator:Desalt JWP-16-C Series

JWP freshwater generator:Desalt JWP-16-C Series

Product catalog summary
Application
The document describes the conversion of seawater into freshwater using vacuum distillation, specifically for use on ships, rigs, and remote onshore locations. The JWP-16-C model is designed for automatic operation with continuous control of freshwater quality.
Features
  • Simple, compact design.
  • Use of titanium heat exchanger plates and seawater-resistant materials.
  • Combined condenser cooling, ejector water, and feed water system.
  • Includes a freshwater pump and control system.
Benefits
  • Produces high-quality freshwater with low salinity, suitable for steam boilers.
  • Long lifespan due to corrosion-resistant materials.
  • Low operation and maintenance costs with easy access for maintenance.
  • Simple installation due to compact design and low weight.
Capacity Range
The JWP-16-C series has a capacity range from 0.5 to 10 m3/24h, depending on heating medium and cooling water temperatures. The maximum capacities are at a cooling water temperature of 32°C. The system can be adjusted by varying the number of plates in the heat exchanger assemblies.
Working Principle
The feed-water is taken from the cooling water outlet of the condenser and enters the evaporator, where it evaporates at 40–60°C. The vapors pass through a demister and condense into freshwater in the condenser.
Installation
The generator is designed for automatic operation in unmanned engine rooms. It uses either engine jacket cooling water or a closed circuit heated by steam as the heating medium. The freshwater produced is pumped to a tank by a built-in pump.
Basic Equipment
  • Includes titanium plate heat exchangers, generator shell, brine/air ejector, freshwater pump, and control sensor.
Additional Equipment
  • Combined cooling and ejector water pump with electric motor.
  • Manual starter box with motor starters and salinometer.
  • Feed-water anti-scale chemical dosing unit for temperatures above 75°C.
Optional Equipment
  • Hot water loop module for steam boosting.
  • Freshwater pH adjustment filter.
  • Freshwater disinfection equipment.
Technical Documentation
Comprehensive documentation is provided, including installation and instruction manuals with plant descriptions, operating instructions, troubleshooting, and maintenance guidelines.
Service Support
An international network of Alfa Laval service centers provides spares and service support. Service engineers are available for maintenance assistance and personnel training.
Dimensions and Service Area
The document provides dimensions and weights for the JWP-16-C40 and JWP-16-C50 models, indicating the size and weight specifications for installation.
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Catalog excerpts

JWP freshwater generator:Desalt JWP-16-C Series-1

Desalt JWP-16-C Series Titanium plate type fresh water generator Application Conversion of seawater into freshwater by vacuum distillation for the supply of high quality freshwater for domestic and process utilization. For installation on ships and rigs, and remote onshore locations. The JWP-16-C is designed for automatic operation with continuous control of freshwater quality. Features • Simple, compact design. • Titanium heat exchanger plates and other seawater resistant materials (non-coated). • Combined condenser cooling, ejector water and feed water system. • Freshwater pump and control system. Benefits • High quality freshwater. The low content of dissolved solids (salinity) ensures the supply of pure water which can be used directly as make-up for steam boilers. • Long lifespan. High grade, corrosion resistant materials, such as titanium plates, ensure a long lifetime for the equipment. • Low operation and maintenance costs. Start-and-forget operation, combined with easy access to the interior, reduces man-hours required for operation and maintenance to a minimum. • Simple installation due to compact design, low weight and the possibility to assemble on the spot. Alfa Laval fresh water generator, type JWP-16-C40.

 Open the catalog to page 1
JWP freshwater generator:Desalt JWP-16-C Series-2

Capacity range The JWP-16-C series covers a capacity range from 0.5 to 10 m3/24h, depending on the heating medium and cooling water temperatures. The capacities shown in fig. 1 are maximum capacities at a cooling water temperature of 32°C. The fresh water generator can be dimensioned to suit any jacket water temperature from 55–91°C and any cooling water temperature required. The quantity of freshwater produced can be altered within each size by varying the number of plates in the heat exchanger assemblies. Working principle See fig. 2. The feed-water to be distilled is taken from the cooling...

 Open the catalog to page 2
JWP freshwater generator:Desalt JWP-16-C Series-3

Seawater in from ejector pump Fig. 3. Installation layout of the Alfa Laval fresh water generator. Basic equipment Fresh water generator unit, including titanium plate heat exchangers for evaporator and condenser, generator shell, two-stage brine/air ejector, freshwater pump, freshwater control sensor and frame. Additional equipment necessary for operation • Combined cooling and ejector water pump with electric motor. Technical documentation Complete information and documentation accompany each freshwater generator. • Maintenance of major components • Spare parts drawings • Technical data and...

 Open the catalog to page 3
JWP freshwater generator:Desalt JWP-16-C Series-4

JWP-16-C series Main dimensions and service area The designation, 40/50, in the type designation indicates the diameter of inlet and outlet flanges for jacket water. How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com Alfa Laval reserves the right to change specifications without prior notification. ALFA LAVAL is a trademark registered and owned by Alfa Laval Corporate AB.

 Open the catalog to page 4

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