What is exhaust gas economizer fire?

What is exhaust gas economiser (EGE) fire and how it occur? A flame appear at the economizer coil during running of main engine at sea while the EGE is put into service with circulation water passing through the coils, it is called economizer fire. It is actually cause by soot fire at the economizer coils.

What do you do in an economizer fire?

Actions in Case of Economizer Fire

Inform bridge and C/E, start stby A/E prepare for engine slow down.
Slow down main engine and stop the engine if possible.
Cover the Turbo Charger.
Soot blow to be carried out to blow off the soot, always keep an eye on temperature.

How do you stop a fire economizer?

Steps for Prevention of Fire

Avoid slow steaming of the main engine.
Ensure good fuel combustion in the main engine.
Ensure fuel is treated and is of good quality while supplying to the engine.
Do regular soot blow of boiler tubes.
Do water washing in ports at regular interval.

How does an exhaust gas boiler do emergency shutdown?

Second, emergency shutdown process steps. First stop the burner, and close the natural gas supply valve to stop the supply of gas, then cut off the total air valve, and finally open the air valve or safety valve to exhaust steam and reduce precipitation. 2. Rapidly cool the furnace water treatment.

What is the purpose of an exhaust gas boiler?

Exhaust gas boilers recover the heat from the exhaust gas of auxiliary diesel engines to generate steam and/or hot water, or useful heat for process heating. Depending on system design, these boilers can enhance the efficiency of the auxiliary engine system by up to 20%, leading to lower overall process costs.

How does an exhaust gas boiler?

At the top it is closed by means of the end plate. In the exhaust gas boiler tubes, heat from the main engine exhaust gas is transferred to the water side by convection. On the water side, the heat is transferred by evaporation of the saturated water adjacent to the tubes where steam bubbles are formed.

What is the purpose of exhaust gas boiler?

What is the other term for exhaust gas boiler?

– Exhaust gas boiler, economiser – An exhaust gas heat exchanger is a row of tube banks circulted by feed water over which the exhaust gases from main diesel engine flow. A boiler drum is required for steam generation and separation to take place. For this purpose, the drum of an auxiliary boiler is usually used.

What is the difference between the auxiliary boiler and the exhaust gas boiler?

The heated exhaust gas from the engines (exhaust gas boiler) acts as a source of energy for generating this steam or thermal oil. Other auxiliary boilers are fired with oil or gas. A large number of valves are necessary to operate the boiler: Safety valves – for protection against excessive pressure.