太平洋航运2015版最新低硫油转换程序文件

MV:
INITIAL CHECKS
•Check local requirements in excess of Marpol Annex VI – Refer to PB Marpol Annex VI APPP & Record Book. •Confirm sufficient fuel oil of the right Sulfur content (%) is available on board for voyage consumption.
•Ensure that the entire system is purged of any HSFO prior to entering an ECA. Refer to PB “Change over procedure to Low Sulphur MGO” and calculate the hours required to flush out the HSFO.
•Drain off water and sludge from settling & service tanks.
•Clean all line filters prior change over.
•Control FO service tank heating, ensure max. oil temperature is 95 deg, stop the FO purifier in advance.
CASE 1 FROM HSFO TO LSMGO (APPLICABLE TO COMMON FUEL SYSTEMS FOR VESSELS WITH COMMON SYSTEM FOR AE AND ME AS WELL AS ME SYSTEM FOR VESSELS WITH SEPARATE SYSTEMS FOR AE AND ME) Vessel fitted with Viscometer System
•Start Standby Generator on LSMGO and take on part load in parallel with the running AE (for common systems only). •Adjust Main engine load to 70 - 75% MCRwith a rate of 1rpm per 2 minutes as far as possible
•Shut off steam tracing valves for FO supply pipes; mixing column ; fuel pump injection pipes and filters.
•Throttle steam inlet valve before steam temperature regulating valve gradually; ensure temperature drop with a rate of about 20C per minute.
•Open the MGO service tank valve [insert valve no.],when fuel oil temperature drops to 90-950C depending on FO temperature in service tank, and shut off the FO service tank valve [insert valve no.]
•Ensure system return oil valve [insert valve no.] open to mixing column, but not to service tank. Check valves [insert valves nos.] status (valve to mixing column to be opened, and valve to service tank to be closed).
•Shut off steam inlet valve [insert valve no.] before steam temperature regulating valve
•Shut off LO supply to FO injecting pump rack, when viscosity drops to 3-4 Cst, Keep viscometer setting same as actual value to avoid any damage to it.
•Record the date/ time of change over, contents of the MGO in each tank and the flow meter reading and inform bridge to make entries with ship’s position. At the time of completion of change over.
•Readjust ME rpm with the rate of 1 rpm per 2 minutes to steaming speed [insert RPM],as per instructions from the Bridge.
•For vessels with common systems - flush the FO system: a) flush all AEs with LSMGO.b) flush standby pump and pipelines; c) flush filters,
•Try out and confirm that the main engine can be started/ stopped and reversed on air and MDO/ MGO from all stations ( Bridge/ ECR and Local Control ). Operate M/E at CSR for one hour after fully changed over to LSMGO. Ensure FO pressure is as per maker recommendation at full speed
•Vessels fitted with cooler, when change over to LSMGO, cooler to be put into use to maintain higher viscosity only in case the viscosity is below 2 at the temperature of the fuel.
•Flush all filter vents to ensure any remaining FO is flushed out.
•Open & supply LO to fuel pump injecting rack for 15mins every 1 hours while operating on LSMGO.
•Change over cylinder lubrication to LSCLO and adjust lubricator as per the engine maker manual
Vessel fitted with Steam Temperature Regulating Valve only
•Start Standby AE on LSMGO (direct line) and take on part load in parallel with the running AE (for common systems only).
•Adjust Main engine load to 70 - 75%MCR with a rate of 1rpm per 2 minutes as far as possible
•Open LO supply valve [insert valve no.] to FO injecting pump rack (UEC engines).
•Reduce temperature regulating valve setting gradually. Ensure FO temperature drops with a rate of about of 20C per minute.
•Shut off steam tracing valves [insert valve no.] FO supply pipes; mixing column ;fuel pump injection pipes and filters. •Open the MGO service tank valve [insert valve no.], when FO temperature drops to 90-95°C (depending upon FO temperature in service tank). Shut off FO service tank valve. [insert valve no.]
•Check the valves [insert valve no.] in FO return line and ensure oil returns to mixing column.
•Shut off FO heaters steam inlet valves [insert valve no.].
•Changeover is completed when oil temperature drops to almost same as in MGO service tank.
•Shut off LO supply to FO Pump rack.
•Record the date/ time of change over, contents of the MDO/ MGO in each tank and the flow meter reading and inform bridge to make entries with ship’s position. At the time of completion of change over.
•Readjust ME rpm with a rate of 1 rpm per 2 minutes to steaming speed as per instructions from the Bridge.
•For vessels with common systems - flush the FO system: a)flush all AEs with LSMGO. b) flush stby pump and pipeline;
c) flush filters.
•Try out and confirm that the main engine can be started/ stopped and reversed on air and MDO/ MGO from all stations ( Bridge/ ECR and Local Control ). Operate M/E at CSR for one hour after fully changed over to LSMGO. Ensure FO pressure is as per maker recommendation at full speed.
•Vessels fitted with cooler, when change over to LSMGO, cooler to be put into use to maintain higher viscosity only in case the viscosity is below 2 at the temperature of the fuel.
•Flush all filter vents to ensure any remaining FO is flushed out.
•Open & supply LO to fuel pump injecting rack for 15mins every 1 hours while operating on LSMGO.
•Change over cylinder lubrication to LSCLO and adjust lubricator as per the engine maker manual
CASE 2 - FROM MDO/ MGO TO HSFO (APPLICABLE TO COMMON FUEL SYSTEMS FOR VESSELS WITH COMMON SYSTEM FOR AE AND ME AS WELL AS ME SYSTEM FOR VESSELS WITH SEPARATE SYSTEMS FOR AE AND ME) Vessel fitted with Viscometer System
Start Standby AE on LSMGO (direct line) and take on part load in parallel with the running AE (for common systems only).Check and confirm HFO in service tank is heating to 80 - 85 °C.
Readjust Main engine load to 70 - 75%MCRwith a rate of 1rpm per 2 minutes as far as possible
•Open LO supply valve [insert valve no.] to FO injecting pump rack (UEC engine).
•Partly open steam inlet valve [insert valve no.]before steam temperature regulating valve of FO heaters gradually and ensure temperature rises gradually with a rate of 20C per minute.
•Open FO valve [insert valve no.] from HFO service tank and shut off the valve [insert valve no.] from the MGO/MDO service tank, when the oil temperature rises to 60°C.
•Check the FO return line valve [insert valve nos.] status and confirm that oil returns to mixing column (not to service tanks).
•Open the steam tracing valves [insert valve nos.] for FO supply line; mixing column and main engine injecting pipes and FO filters.
•Confirm indication in the ECR control panel.
•Increase temperature gradually and ensure FO temperature rises at a desired speed.
•Check actual viscosity, when it rises to 14 Cst, open the steam inlet valve [insert valve no.] fully. Set viscosity to 12-
13 Cst. Shut off the LO supply valve to FO injection pump rack.
•Once system is completely on HFO, other AE (on LSMGO) may be off-loaded and stopped (depending upon no. of engines required to be in service)
•Increase the HFO Service tank temperature to 90 – 950C
•Reduce/ increase ME rpm with a rate of 1 rpm per 2 minutes to steaming speed as per instructions from the Bridge •Record the date/ time of change over, contents of the FO/ LSMGO in each tank and the flow meter reading and inform bridge to make entries with ship’s position. At the time of commencement of change over.
Change over cylinder lubrication to normal CLO and adjust lubricator as per the engine maker manual Vessel fitted with Steam Temperature Regulating Valve only
•Start Standby AE on LSMGO (direct line) and take on part load in parallel with the running AE (for common systems only).
•Adjust Main engine load to 70 - 75% MCR by reducing/ increasing with a rate of 1rpm per 2 minutes as far as possible. •Check and confirm that the HFO service tank temperature is 80-85°C.
•Open LO supply valve to FO injecting pump rack.
•Open the steam inlet valve [insert valve nos.] of FO heaters and set temperature controller from ER temperature to 60°C gradually. with a rate of 1 deg. per 2 mins.
•Open FO valve [insert valve nos.] from HFO service tank, when the oil temperature rises to 60°C, and shut off the valve [insert valve nos.] of the MGO/MDO service tank.
•Check the FO return line valve [insert valve no.] status, and confirm that oil returns to mixing column and not to service tanks.
•Increase temperature of steam temperature regulating valve gradually and ensure FO temperature to rise with a rate of 2°C per minute.
•Open the steam tracing valves [insert valve nos.] for FO supply pipes; mixing column and main engine fuel pump pipes •Set the temperature as per bunker sample test report, shut off the LO supply valve to FO injecting pump rack.
•Once system is completely on HFO, other AE (on LSMGO) may be off-loaded and stopped (depending upon no. of engines required to be in service)
•Reduce/ increase ME rpm with the rate of 1 rpm per 2 minutes to steaming speed as per instructions from the Bridge •Record the time of change over and the flow meter reading and inform bridge to make entries with ship’s position.•Change over cylinder lubrication to normal CLO and adjust lubricator as per the engine maker manual
CASE 3 - FROM HSFO TO LSMGO (APPLICABLE TO AE SYSTEM FOR VESSELS WITH SEPARATE SYSTEMS FOR AE AND ME)
Vessel fitted with Viscometer System
•Start the standby Auxiliary engine on LSMGO using direct line from the service tank and take on part load
•Lubricate fuel pump racks and lubricate through the inspection hole used to check fuel pump timing mark manually.
•For AE FO system, shut off steam tracing valves [insert valve no.]FO supply pipes; mixing column and fuel pump injection pipes.
•Throttle steam inlet valve [insert valve no.] before steam temperature regulating valve gradually; ensure temperature drop with a rate of about 20C per minute.
•Open the MGO service tank valve [insert valve no.],when fuel oil temperature drops to 90-950C and shut off the FO service tank valve (insert valve No.)
•Ensure system return oil valve [insert valve no.] open to mixing column, but not to service tank. Check valves [insert valves nos.] status (valve to mixing column to be opened, and valve to service tank to be closed).
•Shut off steam inlet valve [insert valve no.] before steam temperature regulating valve.
•Monitor fuel pressure when running on MGO. Adjustment of the DO pump pressure adjusting valve may be required. •Record the date/ time of change over, contents of the MGO in each tank and the flow meter reading and inform bridge to ma ke entries with ship’s position at the time of completion of change over.
•Keep viscometer setting same as actual value to avoid any damage to it.
•Once Viscosity drops to 3 or 4 cst, run all AEs on part load until all AE lines are flushed with LSMGO
•Vessels fitted with cooler, when change over to LSMGO, cooler to be put into use to maintain higher viscosity only in case the viscosity is below 2 at the temperature of the fuel.
•Flush all filter vents to ensure any remaining FO in pipeline is flushed out.
Vessel fitted with Steam Temperature Regulating Valve only
•Start the standby Auxiliary engine on LSMGO using direct line from the service tank and take on part load
•Lubricate each fuel pump racks and lubricate through the inspection hole used to check fuel pump timing mark manually.•For AE FO system, shut off steam tracing valves [insert valve no.]FO supply pipes; mixing column and fuel pump injection pipes.
•Reduce temperature regulating valve setting gradually. Ensure FO temperature drops at a rate of about of 20C per minute.
•Shut off steam tracing valves [insert valve no.] FO supply pipes; mixing column and fuel pump injection pipes.
•Open the MGO service tank valve [insert valve no.], when FO temperature drops to 90-95°C (depending upon FO temperature in service tank). Shut off FO service tank valve. [insert valve no.]
•Check the valves [insert valve no.]of FO return line and ensure oil returns to mixing column.
•Shut off FO heaters steam inlet valves [insert valve no.].
•Changeover is completed when oil temperature drops to almost same as in MGO service tank.
•Monitor fuel pressure when running on MGO. Adjustment of the pump pressure adjusting valve may be required.•Record the date/ time of change over, contents of the MDO/ MGO in each tank and the flow meter reading and inform bridge to make entries with ship’s position. At the time of completion of change over.
•Once temperature drops to nearly same as service tank, run all AEs on part load until all AE lines are flushed with LSMGO
•Vessels fitted with cooler, when change over to LSMGO, cooler to be put into use to maintain higher viscosity only in case the viscosity is below 2 at the temperature of the fuel.
•Flush all filter vents to ensure any remaining FO is flushed out.
CASE 3 - CHANGE OVER - FROM MDO/ MGO TO HSFO (APPLICABLE TO AE SYSTEM FOR VESSELS WITH SEPARATE SYSTEMS FOR AE AND ME)
Vessel fitted with Viscometer System
•Start standby AE on LSMGO using direct line from LSMGO service tank
•Confirm that the HFO service tank temperature is 80-85°C.
•Partly open steam inlet valve [insert valve no.]before steam temperature regulating valve of FO heaters gradually and ensure temperature rises gradually at 20C per minute.
•Open FO valve [insert valve no.] from HFO service tank and shut off the valve [insert valve no.] from the MGO/MDO service tank, when the oil temperature rises to 60°C.
•Check the FO return line valve [insert valve nos.] status and confirm that oil returns to mixing column (not to service tanks).
•Open the steam tracing valves [insert valve nos.] for FO supply line; mixing column and main engine injecting pipes. •Confirm indication in the ECR control panel.
•Increase temperature gradually and ensure FO temperature rises at a desired speed.
•Check actual viscosity, when it rises to 14 Cst, open the steam inlet valve [insert valve no.] fully. Set viscosity to 11-
12 Cst.
•Monitor fuel pressure. Adjustment of the pressure adjusting valve may be required.
•Record the date/ time of change over, contents of the FO/ LSMGO in each tank and the flow meter reading and inform bridge to make entries with ship’s position. At the time of commencement of change over.
Vessel fitted with Steam Temperature Regulating Valve only
•Start standby AE on LSMGO using direct line from LSMGO service tank
•Confirm that the HFO service tank temperature is 80-85°C.
•Open the steam inlet valve [insert valve nos.] of FO heaters and set temperature controller at 60°C.
•Open FO valve [insert valve nos.] from HFO service tank, when the oil temperature rises to 60°C, and shut off the valve [insert valve nos.] of the MGO/MDO service tank.
•Check the FO return line valve [insert valve no.] status, and confirm that oil returns to mixing column and not to service tanks.
•Open the steam tracing valves [insert valve nos.] for FO supply pipes; mixing column and main engine fuel pump pipes.
•Increase temperature of steam temperature regulating valve gradually and ensure FO temperature to rise at a rate of 20C per minute.
•Set the temperature as per bunker sample test report, shut off the LO supply valve to FO injecting pump rack. •Monitor fuel pressure. Adjustment of the pressure adjusting valve may be required
•Record the time of change over and the flow meter reading and inform bridge to make entries with ship’s position. CHANGE OVER OF BOILER - FROM HFO to LSMGO
•Boiler to be changed over to LSMGO prior to statring
• 4 hours prior entry into ECA, change over the boiler FO pump suction valve to LSMGO (if not already on LSMGO)•Switch off fuel heating to the Boiler
•With Boiler FO return line to HFO service tank, run the Boiler FO pump until the entire line is flushed and only LSMGO remains in the line
•Fire the Boiler on LSMGO
•After 1 hour of Boiler firing, change the return line to LSMGO tank.
•The boiler fuel pump may develop less pressure and adjustment of the relief valve setting may be required, while running the boiler on LS MGO.
•Do not re-start the boiler in the event of any flame failure without sufficient purging followed by checking inside the furnace for leakage of fuel or any collection of un-burnt fuel
•The air damper position may need to be adjusted to prevent misfiring and flame failure, while running boiler on LS MGO.
A low firing rate is preferable to frequent start / stops
Chief Engineer _____________________ Date: _________________________ 2nd Engr.: 3rd Engr.: 4/E:。