With this paper we would like to indicate on to factors which directly influence on soot forming, deposition and cause of occurance of fire in exhaust gas boiler (EGB). Due the fact that a fire in the EGB can result in complete destruction of the boiler, and a longer interruption of the vessel commercial operations, crew must be familiar with
Feb 03, 2019· Do you mean the one on the exhaust side of the boiler? The idea is to drain any condensation out of the boiler into a bilge tank to avoid it running down and into the main engine turbochargers. If the boiler tubes leak, it’s a handy visual device
6 Soot Deposits and Fires in Exhaust gas Boilers quality and the above highly efficient and perhaps “overstretched” design, it also seemed that the tendency to fouling, i.e. soot deposits on the ex haust gas boiler tubes, had increased and, in some cases, had resulted in soot fires. In extreme cases, the soot
Follow all instructions in boiler manual to start-up the boiler after converting to Direct Exhaust. Because the boiler has been changed, you must verify correct operation, including checking combustion with test instruments both at high fire and low fire as described in the Boiler Manual. Failure to comply could
Fouling (soot deposits) on the exhaust gas boiler tubes can result in soot fire, which in extreme cases can develop into iron fire that causes the entire boiler to burn. The soot particles in the exhaust gas boiler are unavoidable, since the exhaust gas contains soot particles. What can be made instead is preventing theContinue reading →
Dec 09, 2015· Exhaust gas boiler (EGB or EGE) or economiser described in this article is a smoke tube boiler with steam space, used for heat recovery from main engine exhaust gas. An illustration of the boiler is shown in figure below. The exhaust gas boiler is designed as a vertical boiler with a cylindrical shell surrounding the boiler tubes and water drum
the boiler tubes. We distinguish the following types of exhaust gas boiler fire: small soot fire and high-temperature fire as hydrogen fire and iron fire. Small soot fires in the exhaust gas boiler are localized and occur during manoeuvring or engine low load operation.
An Exhaust Gas Boiler is a type of heat recovering system on ships which allows the exhaust heat of the main engine to produce steam while going out in the atmosphere. Every system, which is operated at high temperature, always has a risk of fire.
Fire on Exhaust Gas Economizer Causes, Indications, Actions A flame appear at economizer coil during running of main engine and EGB is put into service with circulation of water is called economizer fire. Various reasons for economizer fire are. Labels: boiler. 2 comments:
Soot Deposits and Fires in Exhaust Gas Boiler Fig. 1: Number of soot-fire-damaged exhaust gas boilers in DnV- classed vessels 1982 84 86 88 90 92 94 96 98 00 2002 2004 70 60 50 40 30 20 10 0 e/overheating incidents per year ear This document, and more, is available for download at Martin's Marine Engineering Page - www.dieselduck.net
Fire in exhaust gas boiler INSIGHT 181, 2006 01 FEB 2006. The following incident involving a fire in exhaust boilers occurred on board a bulk carrier a few years ago. The vessel berthed and the main engine was shut down. The feed water circulating system for the exhaust gas boiler was also isolated.
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Exhaust Gas Boilers And Economisers Arrangement Auxiliary boilers on diesel main propulsion ships, other than tankers, are usually of composite form, enabling steam generation using oil firing or the exhaust gases from the diesel engine. With this arrangement the boiler acts as the heat exchanger and raises steam in its own drum.
Aug 27, 2015· This may result in boiler soot fire or boiler uptake fire. When an uptake fire is suspected, never soot blow the economiser. Soot blow with steam causes steam to convert as hydrogen gas and result in metal fire. Preventive Actions. Regularly inspect boiler …
Exhaust Gas Boiler Fire causes and actions to be taken in such scenario are discussed in this article. If proper precaution and maintenance is done, such a scenario can be avoided easily. It has happened that fire have become so intense that it has lead to melting of the whole boiler.
Introduction. Fire tube boilers, also known as smoke tube boilers, are the most common type of industrial boiler employed today. Compared to water tube boilers, they are much more suitable for smaller plant applications because they can better cope with sudden high demand steam fluctuations.. Combustion occurs within a furnace with the exhaust gasses (flue-gasses) passing through a series of
Mar 06, 2020· An Exhaust Gas Boiler is a type of heat recovering system on ships which allows the exhaust heat of the main engine to produce steam while going out in the atmosphere.. Every system, which is operated at high temperature, always has a risk of fire. This applies to EGB which has the inlet temperature of exhaust gases @ 300-400 deg. C.
A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or (many) more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.. The fire-tube boiler developed as the third of the four major historical types of boilers: low