dry running sms 3-0001-0138-2
DESCRIPTION
Operatie de functionare uscat BoilerTRANSCRIPT
OPERATING INSTRUCTIONS
This document consists of 3 page(s) SAACKE MARINE SYSTEMS Suedweststrasse 13, 28237 Bremen, GERMANY Tel.:+49 421 6495 138, Fax.:+49 421 6495 363, email: [email protected]
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Doku-Nr.: SMS 3-0001-0138//2 Issued on: 15.04.2004 Issued by: 1100/Fre
VERTICAL COMPOSITE MARINE BOILER CMB-VS
Instructions for dry running of boiler
OPERATING INSTRUCTIONS
This document consists of 3 page(s) SAACKE MARINE SYSTEMS Suedweststrasse 13, 28237 Bremen, GERMANY Tel.:+49 421 6495 138, Fax.:+49 421 6495 363, email: [email protected]
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Doku-Nr.: SMS 3-0001-0138//2 Issued on: 15.04.2004 Issued by: 1100/Fre
GENERAL CUSTOMER INFORMATION
Safety related information are indicated by pictograms as follows:
Warning!
Ignoring safety information can endanger life or result in serious in-jury!
Caution!
Ignoring safety information can result in injury to persons or dam-age to machinery or other materials!
Take care!
Ignoring safety information can result in damage to machinery or other materials!
DRY RUNNING INSTRUCTIONS FOR COMPOSITE MARINE BOILER CMB-VS
It becomes inevitable to run the boiler dry if any damage on the pressure part oc-curred and the vessel is underway at sea, the schedule does not allow a longer shut-down of the main engine in order to make temporary repairs to the damaged boiler or the damage is of an extent which is not manageable by temporary repair methods available.
Dry running of the boiler is generally possible with main engine exhaust gas tem-perature up to 385 °C . Cleaning of heating surface has to be performed as usual also during dry running period.
To prepare the boiler for dry running, please proceed as follows:
1.) Dismount all temperature sensitive devices, such as boiler level controls and limiting devices.
2.) Seal control device necks on boiler body with appropriate gaskets and blind
flanges.
3.) Close all valves on the boiler body and secure against unauthorized opening.
4.) Switch on the combustion air fan and keep it running for the whole dry running period in order to provide sufficient cooling air to the burner assembly.
Take care!
Keeping the combustion air fan off might result in overheating and subsequent damage to the burner equipment due to heat transfer through the boiler body steel structure!
OPERATING INSTRUCTIONS
This document consists of 3 page(s) SAACKE MARINE SYSTEMS Suedweststrasse 13, 28237 Bremen, GERMANY Tel.:+49 421 6495 138, Fax.:+49 421 6495 363, email: [email protected]
3
Doku-Nr.: SMS 3-0001-0138//2 Issued on: 15.04.2004 Issued by: 1100/Fre
During dry running period, the heat transfer surface has to be maintained as fol-lows: 1.) Start the soot remover dosing device before or immediately after starting the
main engine to reduce danger of soot fire and to ensure that no soot deposits inside of the smoke tubes will burn in and lead to reduction of heat transfer in the smoke tubes.
Take care!
If the smoke tubes are not cleaned immediately each time after engine start up the higher exhaust gas temperature might lead to permanent molten ash deposits or even cause a soot fire!
2.) Clean the smoke tubes with soot remover daily during dry running period. The boiler has to undergo permanent repairs as soon as possible in coordination with the classification society involved. For repair or exchange of smoke tubes on CMB-VS boiler please refer to repair in-struction. When taking the boiler into operation again after permanent repair, proceed as follows: 1.) Open control device necks on boiler body by removing the blind flanges. 2.) Remount all temperature sensitive devices which have been taken off prior to
dry-running period, such as boiler level controls and level limiting devices.
3.) Put all valves on the boiler body back into position for normal operation.
4.) Check all safety and control functions of the automatic control system.
5.) Heat up the boiler slowly to normal operating temperature, applying heat with burner or reduced main engine load.