Comments on: Blow-Down Procedure for Marine Boilers

By: Rohan gul

Rohan gul — Fri, 05 Feb 2021 07:57:51 +0000

Why to reduce density of water

By: mohan

mohan — Wed, 03 Feb 2021 18:10:28 +0000

i don’t think so .my query is to be practical .but i wanna know the answer… what to do when the boiler in full load as well in need of blowdown

By: John

John — Sat, 30 Jan 2021 21:33:48 +0000

How do I calculate the length of time I should blow down for?

By: Anish

Anish — Thu, 14 Jan 2021 09:13:36 +0000

In reply to Dominic Andrew. First, try to remove it by skimming oil from HOTWELL. If the contamination is more, boiling out or acid cleaning should be performed immediately.

By: Dominic Andrew

Dominic Andrew — Wed, 13 Jan 2021 13:59:51 +0000

I have been asked recently in an oral exam what to do if oil is found in the boiler drum. How to get it out without breaking MARPOL regs? Can anyone give the full procedure on safely removing this oil with out discharging overboard?

By: S.Lakshmanamurugan

S.Lakshmanamurugan — Mon, 28 Sep 2020 18:43:07 +0000

Thank you for information

By: Anish

Anish — Mon, 29 Jun 2020 02:48:06 +0000

In reply to Gokul Nair.

Hi Gokul

Thank you for this “Value addition”.

By: Anish

Anish — Mon, 29 Jun 2020 02:44:53 +0000

In reply to Maruthi Prakash. Please do check the blow down line valve if they have provided additional valves near the discharge.

By: Maruthi Prakash

Maruthi Prakash — Sat, 27 Jun 2020 16:12:56 +0000

Recently built ships boiler doesn’t have two blow down valves. Only one blowdown valve for scum and one for bottom blow down. In that case, how the seat cut/erosion problem is rectified.?

By: Gokul Nair

Gokul Nair — Sat, 27 Jun 2020 16:02:17 +0000

Few points that came in my head while going through this well articulated article:

1.Make sure to do ‘Scum Blowdown’ before ‘Bottom Blowdown’ otherwise while doing bottom blowdown the scum settled on water surface or if any oil content it will get agitated, contaminating the boiler water.
2. Instead of the seat cutting effect we can mention ‘Wire drawing effect’.

By: Anish

Anish — Mon, 29 Jul 2019 04:50:28 +0000

In reply to Aniedi Nelson Okon. @Aniedi: Glad you found the website helpful. Please do share the knowledge.

By: Aniedi Nelson Okon

Aniedi Nelson Okon — Sun, 28 Jul 2019 10:12:59 +0000

I have gained a lot from this platform
as ( ACME) student of Maritime Academy of Nigeria. This platform have added value to my carrier and exposed me to so many things which I did not know before l am so grateful

By: Anish

Anish — Thu, 06 Sep 2018 02:33:06 +0000

In reply to Kalaap. @Kalap: A flash tank is installed and the boiler blowdown is connected to this flash tank. As the blowdown water can be a high-temperature mixture, the heat energy of the blowdown is taken into the flash tank from which it is used to heat the boiler making water.

By: Kalaap

Kalaap — Tue, 04 Sep 2018 20:08:16 +0000

What is flash blowdown in boiler.? Asked in meo class 2

By: Anish

Anish — Mon, 13 Nov 2017 08:49:51 +0000

In reply to rocky. @Rocky: Excessive blowdown will waste energy, water, and chemicals. It will also increase the fuel consumption and increase the time to achieve required rated pressure.