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Fresh Water Generator Catalogue

Fresh Water Generator Catalogue

Fresh Water Generator Catalogue

Product catalog summary
Introduction
The document introduces the DongHwa Double Effect Type Water Maker, a device designed to convert seawater or dirty water into pure water for various uses such as drinking, boiler makeup, and domestic use on ships and small power stations. It operates by utilizing waste heat from diesel engine jacket cooling water to evaporate seawater under low vacuum conditions.

Specifications and Features
The water maker consists of three titanium plate heat exchangers functioning as stage 1 evaporator, condenser, and stage 2 evaporator. The system is designed for low installation costs, reduced space requirements, and simple, unattended operation. It is reliable, easy to maintain, and versatile for a wide range of applications including offshore vessels, onshore remote locations, fishing vessels, and cruisers.

Operating Principle
The system operates by evaporating seawater at approximately 70°C and 45°C under high vacuum conditions. The pure vapor is then condensed into freshwater. The system includes a salinometer to monitor salinity levels, ensuring the quality of the distilled water. If salinity exceeds preset levels, a solenoid valve is activated to discard the faulty distillate.

Technical Specifications
The document provides detailed technical specifications for various models of the water maker, including dimensions, weight, and capacity. It also outlines the working principle of the tubular and plate type fresh water generators, highlighting the use of vacuum conditions to facilitate evaporation at lower temperatures.

Installation and Maintenance
Installation sketches and dimension lists are provided for different models, detailing the layout and components of the fresh water generator. The document emphasizes the importance of proper installation and maintenance to ensure optimal performance.

Contact Information
Contact details for DongHwa Entec's head office, factories, R&D center, and sister companies are provided for further inquiries and support.
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Catalog excerpts

Fresh Water Generator Catalogue-1

OHSAS 18001 Certificate Number C 0082 ▶▶Engineering technology for the future Double Effect Type Water Maker & Fresh Water Generator Our company endeavor ceaselessly to develop new products and quality improvement

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Fresh Water Generator Catalogue-2

DOUBLE EFFECT TYPE WATER MAKER DF 35/60/2 Fresh Water Generator Introduction The DongHwa Double Effect Type Water Maker is the equipment that convert seawater or exhausted dirty water to pure water for drinking, boiler makeup, domestic use on ship and small power station. At that time, seawater is evaporated at about 70°C, 45°C respectly as the one passed the inside of heater under the high vacuum condition and the separated pure vapor is converted to freshwater on condenser.(stage2) The other one is going to the heating medium of heater and then converted to freshwater.(stage 1) Operating Principle...

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Fresh Water Generator Catalogue-3

• Low installation costs • Reduced space requirement • Simple, unattended operation • Reliability • Easy operation & maintenance • Versatility for a wide range of applications • Fresh water quality • Offshore Vessel (Drillship, Semi-Submigible Rig…) • Onshore remote location • Fishing Vessel • Cruiser • Sea Water Ejector pump • Electric Booster Heater with Control Panel • Control panel with motor starters • Additional control equipment for easy running

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Fresh Water Generator Catalogue-4

Fresh Water Generator Working Principle Tubular Type The main engine jacket cooling water circulates the outside of the vertical tube in heating section and the sea water to be distilled is sent to the bottom cover of this section. Then some of the sea water is converted into vapour when it goes up through the heated tubes. The vapour, through the demisters, is condensed on the outer surface of the tubes of the distilling condenser and the resultant distillate is led to the suction of the distillate pump. In the meantime the non-condensable gases and brine are extracted and discharged to overboard...

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Fresh Water Generator Catalogue-5

Installation sketch of Fresh Water Generator VACUUM ADJUSTING VAVLE V2 PREHEATER CONDENSER JACKET WATER JACKET WATER BRINE WATER EJECTOR DISTILLED WATER ALARM POWER SUPPLY V4 FRESH WATER BACK PRESS. MAX. 18 mAq IV PRODUCT WATER OUTLET DISTILLATE PUMP CHEMICAL INJECTION UNIT (VACUUM OPERATING TYPE WITH PURGEMETER) HIGH SALT WATER RETURN LINE HEATING LINE S.W LINE F.W LINE ELECTRIC WIRING YARD SUPPLY PRESSURE GAUGE COMPOUND GAUGE VACUUM GAUGE THERMOMETER SALINITY CELL FLOW METER ORIFICE AIR VENT VALVE GLOBE VALVE SWING CHECK VALVE PRESS. REGULAT. VALVE 2-WAY SOLENOID VALVE 3-WAY COCK SIGHT GLASS...

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Fresh Water Generator Catalogue-6

Fresh Water Generator Working Principle The DongHwa Entec DF Series Fresh Water Generator utilizes the heat from diesel engine jacket cooling water to produce pure drinkable water by evaporating sea water under high vacuum enabling the feed water to evaporate at temperatures below 48°C. Steam can also be used as the heat source instead of the hot jacket water. The DongHwa Entec DF Series Fresh Water Generator is based on 2 titanium plate heat exchangers acting as an evaporator and a condenser respectively. The evaporation chamber is kept under vacuum by a water ejector driven by the sea water...

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Fresh Water Generator Catalogue-7

Installation sketch of Fresh Water Generator 31 6 VACUUM GAUGE EJECTOR PUMP(Option) DISTILLER BASE FLANGE JACKET WATER INLET DISTILLER COVER JACKET WATER OUTLET FLOW SIGHT GLASS FRESH WATER PUMP DISTILLED WATER OUTLET SALINITY SENSOR BRINE OUTLET SALINITY INDICATOR(controller) AIR / VACUUM SUCTION LINE CONTROL PANEL SAFETY VALVE PRESSURE GAUGE VACUUM BREAKER DRAIN LINE VALVE Electrical wire / Dong-hwa FLOW METER FOR DISTILLED WATER COMPOUND GAUGE Electrical wire yard or customer CHECK VALVE CHEMICAL DOSING UNIT THERMOMETER THERMOMETER VACUUM BREAK CONTROL PANEL END PLATE SALINITY CONTROLLER VACUUM...

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Fresh Water Generator Catalogue-8

We wish to communicate with our customers. If you would like any further information about DongHwa Entec, please visit our website (www.dh.co.kr). DongHwa Entec cares for your concerns. Head Office and Factory 7, Noksansandan 261-ro, Gangseo-gu, Busan, Korea TEL : +82-51-970-1000 FAX : +82-51-970-1001 Hwajeon Office and Factory 20, Hwajeonsandan 1-ro 63beon-gil, Gangseo-gu, Busan, Korea TEL : +82-51-970-1100 FAX : +82-51-970-0710 7, Gwahaksandan-ro 305beon-gil, Gangseo-gu, Busan, Korea TEL : +82-51-970-0711 FAX : +82-51-970-0730 DongHwa Entec (Shanghai) Co., Ltd. No.2508 JiangShan Road Luchaogang...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.