Seawater Desalination Plant

Sea Water Desalting Plant

Capacity : 3m3/h to 50m3/h

General

1.1       General description

Subject technical proposal specify requirement technical details, supply scope, testing scope, testing standard, packing, delivery and aft-sales service.

1.2       Availability

The technical proposal specify design scheme, inspection protocol, and to be confirmed as attachment of contract.

2.  System requirement

2.1 Subject proposal relates the flow diagram, which comply with standard requirement of customer.

  nth="12" w:st="on" year="1899">2.1.1  Fresh water standard comply with WHO

  nth="12" w:st="on" year="1899">2.1.2  Capacity:=50m3/D

  nth="12" w:st="on" year="1899">2.1.3  Salt content:≤500mg/L

  2.2 Subject proposal conclude with follow requirement.

          nth="12" w:st="on" year="1899">2.2.1  Raw water: sea water

          nth="12" w:st="on" year="1899">2.2.2  Other basic design condition related

                Model of Reverse Osmosis：One stage Reverse Osmosis

                Purpose：Marine and offshore

                Power supply：380VAC，50 HZ，3P

3. Function and service description

  -Raw water boosting and pre-treatment system

  -online monitoring device of Reverse Osmosis

  -Automatic cleaning and fore & back flushing system with compressed air acceleration of sand filter.

  -Automatic low speed chemical cleaning and dosing system.

-          Spares and special tools with reference to maker’s standard

On-site commissioning and conduct available upon demand of customer in China

-          World-wide aft-sales service and maintenance upon request

4. Environment condition

  Environment working condition of ZC-FSHB-50，

  Environment Tem：0~45℃，Seawater Tem：5~35℃，Humility：20%~95%

5. Performance

  5.1  system function

1)        Sea water 35000ppm, for desalinating sea water into fresh water 500ppm

2)        Whole system under control and monitoring via PLC

3)        Automatic cleaning and back-flushing system equipped for sand filter,

4)        There is over-pressure protection available for high pressure pump, when pressure is over 6.8Mpa, the system will shut down automatically, and give alarm for attention.

5)        High pressure pump equipped with low-pressure protection device, when pre-treated sea water pressure is less than 0.05Mpa, the system will shut down automatically and give alarm for attention.

6)        Working parameter (Raw water flow, product flow, brine flow, operation pressure, product water conductivity)

7)        If the product water is unqualified (salt content more than 700ppm), the system will drain automatically and give alarm for attention.

8)        Potential-free alarm and running indication available for extension.

5.2  Technical parameter

      Product：                        50m3/day

      Raw water ：                      ≤35000PPM

      Inlet temperature ：             5~35℃

      PH value of Raw W：         3.0~10.0

      Boosting inlet pressure ：        0.1~1kg/cm2 (Positive)

      Salt content of product water：   ≤500PPM

      Desalination rate：               ≥98.5%

      Product water pressure：        ≤0.3Mpa

      Recovery：                     ≈36%

      Power supply：                    380VAC/50HZ/3φ

      Power consumption：            18.5KW（Include boost pump）

      Control cabinet ：                   220VAC

                                            Control voltage: 220VAC

                                            IP: IP55

                                            Potential-free extension for running indication and common alarm available.

     Motor ：                           IP： IP55

                                            Insulation class: “F”

      Outline :                         L×W×H=2750×1950×2200mm

         Weight :                        Dry weight 2500kg

                                             Wet weight 800kg