AALBORG BOİLERS RE-START PROCEDURES

AALBORG BOİLERS RE-START PROCEDURES

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Check that the water level in the oil fired boiler(s) is within the permitted limits and

that feed water pumps as well as water level control equipmentare operational.

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Check that the valves are open for circulation pumps,exhaust gas boiler,and

differential pressure indicator switch.

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Open the air valve and close the drain valve for the exhaust gas boiler.

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Open the circulation outlet valve on the oil fired boiler(s).If the oil fired boiler(s)

is already pressurised and heated the valve must be opened very carefully in order

to avoid thermal stresses in the piping and pumps.

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Fill the circulation system as far as possible with boiler water via outlet circulation

valve of the oil fired boiler(s).

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Make sure that the circulation pumps are properly filled and vented.

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Ensure that the impulse legs for the differential pressure indicator switch are

completely filled with water.

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Open the circulation inlet valve on the oil fired boiler(s).If the oil fired boiler(s)

is already pressurised and heated the valve must be opened very carefully in order

to avoid thermal stresses in the piping and exhaust gas boiler.As soon as steam

blows out the air valve should be closed.

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Throttle the outlet valve for circulation pump which should be set into operation

and then start the circulation pump.

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In case of depressurised and cold oil fired boiler(s) carefully fill boiler water in the

forced circulation system and exhaust gas boiler until the system is completely

filled.As soon as water comes out the air valve should be closed.

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In case of pressurised and heated oil fired boiler(s) carefully ciculate boiler water

through the forced circulation system and exhaust gas boiler until the system is

heated to approximately the same temperature as the boiler water.

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Open the outlet valve for the operational circulation pump completely.

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Engage the automatic stand-by position of the other circulation pump