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Pipe system
- 1. Ship practice. Kuģa mehāniķu prakse Pipe systems.
- 2. Seawater Cooling System Kuģa mehāniķu prakse Pipe systems
- 3. Seawater Cooling System Kuģa mehāniķu prakse Pipe systems Arrangement • Conventional and Central cooling • High and low sea chests • Suctions are arranged from two sea inlets preferably on the opposite sides of the ships • Filters can be cleaned without interrupting the water supply in the system. • Temperature controlled three-way valves to re- circulate water when the water is cold
- 4. Seawater Cooling System Kuģa mehāniķu prakse Pipe systems
- 5. Overboard Discharge Kuģa mehāniķu prakse Pipe systems
- 6. Fresh water HT & LT Kuģa mehāniķu prakse Pipe systems
- 7. Freshwater Cooling System Kuģa mehāniķu prakse Pipe systems
- 8. Freshwater Cooling System Kuģa mehāniķu prakse Pipe systems Arrangement • Freshwater from engine is delivered to freshwater generator (evaporator) • Pressure in the system is regulated by he expansion tank • Temperature-controlled three-way valves to allow re-circulation • High-temperature circuit (jacket cooler), low-temperature circuit (lubricating oil)
- 9. Jacket Water Pump Kuģa mehāniķu prakse Pipe systems
- 10. Freshwater Cooler (Plate-type) Kuģa mehāniķu prakse Pipe systems
- 11. D_O_ AND F_O_ TRANSFER SYSTEM Kuģa mehāniķu prakse Pipe systems
- 12. D_O_ AND F_O_ service SYSTEM Kuģa mehāniķu prakse Pipe systems
- 13. D_O_ AND F_O_ OVERFLOW SYSTEM Kuģa mehāniķu prakse Pipe systems
- 14. FO Storage and Transfer Kuģa mehāniķu prakse Pipe systems Important concerns • Overflow pipes • Quick-closing valves • Drain to waste oil tanks (spill trays) • Level gauge with heat-resistant glass for sounding • Remote control of fuel oil valves • Insulation of hot surfaces where fuel oil leaks (possibly in a spray form) is possible
- 15. HFO Settling Tank Kuģa mehāniķu prakse Pipe systems
- 16. HFO Service Tank Kuģa mehāniķu prakse Pipe systems
- 17. Quick-closing Valves Kuģa mehāniķu prakse Pipe systems
- 18. TRANSFER SYSTEM Kuģa mehāniķu prakse Pipe systems
- 19. FUEL OIL PURIFIER SYSTEM Kuģa mehāniķu prakse Pipe systems
- 20. FUEL OIL PURIFIER SYSTEM Kuģa mehāniķu prakse Pipe systems
- 21. FUEL OIL PURIFIER SYSTEM Kuģa mehāniķu prakse Pipe systems
- 22. FO Supply to Engine Kuģa mehāniķu prakse Pipe systems • Main components • Storage (bunkers) • Transfer pump • Settling tank • Heater • Purifier • Service tank • Filter • Viscosity controller • Return Tank (10 to 15 minutes engine operation
- 23. Slide’s topic Kuģa mehāniķu prakse Pipe systems
- 24. compressed air systems Kuģa mehāniķu prakse Pipe systems
- 25. Compressed Air System Kuģa mehāniķu prakse Pipe systems • No connections to other machinery between air compressors and main air receivers • Emergency air compressor can be diesel driven or power supplied from emergency generator • Pressure reduction stations and filters are required to be duplicates • Safety relief valves are fitted at receivers and set at 10% above operating pressure • Compressed air line is classes as Class II due to high pressure.
- 26. Air Compressed Kuģa mehāniķu prakse Pipe systems
- 27. service air system Kuģa mehāniķu prakse Pipe systems
- 28. service air system Kuģa mehāniķu prakse Pipe systems
- 29. Compressed Air System Kuģa mehāniķu prakse Pipe systems Normally three systems Starting air Service air Control air Require two main compressors to charge two air receivers from atmospheric within one hour Capacity of receivers sufficient to produce: 12 starts for reversible engines 6 starts for non-reversible engines 3 starts for auxiliary engines
- 30. lube oil for engine Kuģa mehāniķu prakse Pipe systems
- 31. lube oil for engine Kuģa mehāniķu prakse Pipe systems Main components • Filling from deck to tanks • Main LO storage tank to deliver to ME sump tank • Quick-closing valves operable from outside ER where valves are below top of tanks (not applicable for small tanks below 0.5 m3) • Air pipes may terminate inside ER provided their openings do not constitute a fire hazard • Duplex filters (or self-cleaning) are used without interrupting operations
- 32. main steam and auxiliary steam systems Kuģa mehāniķu prakse Pipe systems
- 33. main steam and auxiliary steam systems Kuģa mehāniķu prakse Pipe systems
- 34. Steam System Kuģa mehāniķu prakse Pipe systems Normally divided into: Feed water systems Steam supply For heating tanks For heating pipelines To heat exchangers Condensate • Heat of exhaust gas is recovered in economizer to generate steam • Diesel propulsion system is normally fitted with an auxiliary boiler
- 35. Steam System Kuģa mehāniķu prakse Pipe systems • Steam with pressure above 7 bar or temperature above 170°C are considered Class II piping. • Steam with pressure above 16 bar or temperature above 300°C is of Class I piping. • With respect to materials for valves and fittings in Class II piping system, grey cast iron may not be used up to ND 200, pressure up to 13 bar and temperature up to 250°C
- 36. Steam System Kuģa mehāniķu prakse Pipe systems
- 37. Steam System Kuģa mehāniķu prakse Pipe systems
- 38. Bilge System Kuģa mehāniķu prakse Pipe systems
- 39. Bilge System Kuģa mehāniķu prakse Pipe systems • Basic requirement is to provide effective drainage to all dry spaces and at the same time prevent water from entering the spaces through this system. • Discharge of oily water from machinery spaces is to comply with MARPOL Annex 1 • Oily water is treated in an oily-water separator before being allowed to be discharged. • Discharge water must be monitored with purity not to exceed ppm set by MARPOL.
- 40. Bilge System Kuģa mehāniķu prakse Pipe systems Bilge main diameter, dm L = length of ship B = Breadth D = Depth 25)(68.1 DBLdm Branch bilge main diameter, db 25)(15.2 DBldb l = length of compartment
- 41. Bilge System Kuģa mehāniķu prakse Pipe systems Bilge pump capacity, Q 3 2 10 75.5 md Q •Two bilge pumps are required •Suctions are arranged such that water can be pumped out when ship is inclined 5° •Arrangement must be such that water cannot pass from sea or ballast system into dry spaces through the bilge system
- 42. Oily-water Separator Kuģa mehāniķu prakse Pipe systems
- 43. FIREFIGHING PIPE SYSTEM Kuģa mehāniķu prakse Pipe systems
- 44. WATER MIST SYSTEM Kuģa mehāniķu prakse Pipe systems
- 45. Fire-Fighting Systems Kuģa mehāniķu prakse Pipe systems Three groups: Fire Main Seawater as fire extinguishing medium At least two fire pumps and are located in two different compartments An international shore connection is provided at port and starboard for external water supply System is tested with at least streams of water directed from one fire pump. Pressure relief valve is fitted to mains to protect sudden over-pressure.
- 46. Fire-Fighting Systems Kuģa mehāniķu prakse Pipe systems Three groups: Carbon Dioxide system Dry fire protection Used in compartments that have potential for fire: engine room, emergency generator room, paint locker and galley hood System is equipped with audio and visual alarm to alert personnel to evacuate Prior to CO2 release, ventilation fans and fire damper to be shut.
- 47. Fire-Fighting Systems Kuģa mehāniķu prakse Pipe systems Three groups: Sprinkle system Wet fire protection mainly for accommodation area System is filled with fresh water and pressurized by compressed air Subsequently, water is supplied from fire main Sprinkle and fire main systems are separated by an alarm check valve. When the pressure in the sprinkle drops below the fire main fire pressure, the fire main pressure will overcome the internal pressure of the valve lift and automatically push open to accommodate the fire main.
- 48. Ballast system Kuģa mehāniķu prakse Pipe systems
- 49. Ballast system Kuģa mehāniķu prakse Pipe systems
- 50. SEWAGE SYSTEM Kuģa mehāniķu prakse Pipe systems
- 53. valves name Course title Presentation’s title
- 54. valves name and symbol Course title Presentation’s title