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Desalination

Understanding of Desalination

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Desalination

  1. 1. Understanding of Main Equipment in Desalination Plant Desalination Business Group Design Team
  2. 2. 1. Understand the kinds and principle of main equipment 2. Understand the manufacturing process and transportation of the Evaporator 1. Understand the kinds and principle of main equipment 2. Understand the manufacturing process and transportation of the Evaporator The aim of the Presentation Ⅰ. The kinds and structure of the main equipment Ⅱ. Manufacturing process of the Evaporator Ⅲ. Transportation of the main equipment Ⅰ. The kinds and structure of the main equipment Ⅱ. Manufacturing process of the Evaporator Ⅲ. Transportation of the main equipment Contents
  3. 3. ▣▣ EQUIPMENT OF THE DESALINATION PLANTEQUIPMENT OF THE DESALINATION PLANT - Main equipment : equipment to make water directly - Subsidiary equipment : equipment to keep the quality of the equipment and to help making water efficiently Evaporator Deaerator Brine Heater
  4. 4. ① Evaporator Power Plant Desalination Plant (MSF) Storage Tank ① ② ④ ② Brine Heater Subsidiary Equipment ③ Seawater Screening Equipment ④ Remineralization Equipment ③ ▣▣ COMPOSITION OF THECOMPOSITION OF THE FACILITIESFACILITIES Main Equipment Process to make waterProcess to make water
  5. 5. Equipment that produces fresh water from heated brine through continuous evaporation and condensation. ①① EvaporatorEvaporator ② Equipment that heats the brine using boiler steam. ②② Brine HeaterBrine Heater Equipment that removes dissolved carbon dioxide and oxygen which are included in the seawater. That is, Deaerator is used to prevent the corrosion of evaporator. ③ ③③ DeaeratorDeaerator ① Steam inlet Brine inlet heated Brine inlet ② ③ Seawater inlet ▣▣ Kinds of Main EquipmentKinds of Main Equipment
  6. 6. Steam Distillate Sea water Sea water ▣▣ Principle of the EvaporatorPrinciple of the Evaporator Flow of the Evaporator insideFlow of the Evaporator inside Cross Section of the Evaporator insideCross Section of the Evaporator inside 110 ℃ 105 ℃ 100 ℃ 95 ℃ 42 ℃ 35 ℃  118 ℃ Tube Demister Distillate Brine Side Wall
  7. 7. Tube Bundle DemisterDemister Heated Brine Distillate Trough
  8. 8. Demister Vapor
  9. 9. Cold Sea Water Cold Sea water Cold Sea water evaporated vapor Tube Tube Tube
  10. 10. Tube Producing distillate from brine through heat exchange Tube Producing distillate from brine through heat exchange Distillate Trough Trough to gather condensed distillate inside stage Distillate Trough Trough to gather condensed distillate inside stage Tube Support Plate Plate to support tubes and to prevent vibration Tube Support Plate Plate to support tubes and to prevent vibration Weir Gate Gate to control pressure difference between stages and flow rate of the brine Weir Gate Gate to control pressure difference between stages and flow rate of the brine TubeTube Waterbo x Waterbo x Tube Support plate Tube Support plate Distillate Trough Distillate Trough Pass Patition Wall Pass Patition Wall ▣▣ Structure of the EvaporatorStructure of the Evaporator
  11. 11. ▣▣ Structure of the Brine HeaterStructure of the Brine Heater Impingement Plate plate to protect tubes from high pressure and full speed steam and to distribute steam evenly Impingement Plate plate to protect tubes from high pressure and full speed steam and to distribute steam evenly Tube Support Plate Plate to prevent Tube vibration and to support tube Tube Support Plate Plate to prevent Tube vibration and to support tube Tube Body to exchange heat Tube Body to exchange heat Tube sheet Plate to fix tubes Tube sheet Plate to fix tubes Steam inlet Condensate Outlet Brine inlet Brine Outlet
  12. 12. ▣▣Structure of the DeaeratorStructure of the Deaerator ① Seawater Flow ② Stripping Steam Flow ③ Non-Condensable Gas Packing Zone Pall Ring loading space * Pall Ring : make contact area of sea water larger Packing Zone Pall Ring loading space * Pall Ring : make contact area of sea water larger
  13. 13. PallRing Steam CO2 O2 N2 Purpose of the Pall Ring
  14. 14. Outline of Evaporator Manufacturing ProcedureOutline of Evaporator Manufacturing Procedure ▣▣ Evaporator Manufacturing procedureEvaporator Manufacturing procedure
  15. 15. One-Module Manufacturing Method Block Manufacturing Method One-Module Manufacturing Method is to ship Eva. with complete assembling condition after manufacturing and assembling each bundle in the shop. Keep quality of the Evaporator and prevent problems from taking to the pieces and assembling in the site. Reduce construction time over 5 months and decrease amount of work in the site Divide the Evaporator into 2~4 blocks after manufacturing each bundle in the shop. Amount of work increases unless we use one-module manufacturing method in the site Make use of overseas manufacturing companies in the site Distinctive manufacturing process of Doosan’s EvaporatorsDistinctive manufacturing process of Doosan’s Evaporators
  16. 16. Bottom Plate Assembly Bundle AssemblyBundle Assembly ◆ Structure assemblyStructure assembly Bottom plate assemblyBottom plate assembly ◆ Bundle assemblyBundle assembly Turn-over (Rotation of 180Turn-over (Rotation of 180 oo )) Evaporator Manufacturing Procedure
  17. 17. BundleBundle AssemblyAssembly ◆ Bundle loadingBundle loading Bundle assemblyBundle assembly ◆ Deaerator assemblyDeaerator assembly Tube sheet assemblyTube sheet assembly Waterbox assemblyWaterbox assembly
  18. 18. 배관 설치 Specification of Evaporator - Length : 87 m - Width : 27 m - Height : 16 m - Empty weight : 3500 ton ▣▣ TransportationTransportation Transportation SizeTransportation Size Equipment : Modular Transporter (32EA) (156 Axlelines, 1072 Wheels)
  19. 19. Size of Transportation Equipment (Modular Transporter - TYPE 2400)
  20. 20. Loading BeamLoading Beam Procedure of Evaporator Transportation
  21. 21. JettyJetty ◆ InstallationInstallation Base Plate Land Transportation Seafastening Marine Transportation Procedure of Evaporator Transportation
  22. 22. Fujairah ChangwonTransportation Route Korea / Fujairah : 5,900 Miles at 7.5 KNOT : 32.8 Days 8.0 KNOT : 30.7 Days COLOMBO (20 Miles) BOMBAY (96 Miles) SINGAPORE (8 Miles) : SHELTERING PORT Marine Transport RouteMarine Transport Route
  23. 23. Routing to site & installation on foundations
  24. 24. AL-TAWEELAH PJT UMM AL NAR PJT FUJAIRAH PJT AZ-ZOUR PJT 6/7.2MIGD x 4Units = 24/28.8MIGD (2001)12.5MIGD x 4Units = 50MIGD (2001) 12.5MIGD x 5Units = 62.5MIGD (2002) 12.5MIGD x 5Units = 62.5MIGD (2004) Experience with One-Module Transportation Sabiya St. 1&2 PJT (Kuwait) 12.5MIGD x 4Units = 50.0MIGD (under construction)) Ras Laffan ‘B’ PJT (Qatar) 15.0 MIGD x 4Units = 60.0MIGD (under construction))
  25. 25. Question / Answer

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