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Associate

Join Date: Jun 2008
Location: Malaysia
Posts: 25

Boiler Water Chemistry

03/30/2011 9:48 AM

Hi all,I want to know what is the best water treatment program for bio mass boiler with pressure 43 barg and steam temperature 415 deg Celcius.pH phosphate coordinated or any other programs?in term of safety of the tube and cost?Also where is the most suitable location for injecting chemical?currently chemical is injected to feedwater pump suction.

Thanks

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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#1

Re: Boiler water chemistry

03/30/2011 10:11 AM

I doubt there is any single best treatment program; rather, it depends on the condition of the feedwater source. Most water treatment programs are best coordinated with local experts familiar with the particular conditions.

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Guru

Join Date: Feb 2011
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#2

Re: Boiler Water Chemistry

03/30/2011 9:03 PM

Tornado above is right, water treatment does not follow with the type of boiler you are using. Its main concern is treating the source of water for the purpose that it may not harm the heat exchanger or make the system inefficient.

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Active Contributor

Join Date: Sep 2010
Posts: 22
#3

Re: Boiler Water Chemistry

03/31/2011 1:24 AM

Wouldn't the boiler vendor specifiy the boiler feed water quality? Then depending on the feed water source and the chemicals dosed into the BFW, the treatment process shall be determined accordingly.

The treated water quality depends very much on the blowdown and the steam pressure (higher pressure = more stringent water requirement)

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Power-User

Join Date: Oct 2009
Location: Central Midwest
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#4
In reply to #3

Re: Boiler Water Chemistry

03/31/2011 10:59 AM

pj:

Ahhhhh.....you have stumbled upon the source of the problem..... HONESTY !!!

The boiler vendor only wants to sell boilers. He is well aware of the fact that poor water treatment will damage the boiler..... but it is simply not his business.

There are US companies that specialize in recommending water treatment....but they also sell chemicals......and they deperately want your business !!

Hence you are going to the fox to ask about the security of the chicken house..... a bad position.

You should start off by purchasing books about boiler water treatment, asking other operators how they treat the local Indian water and then sending a local water sample to a lab.

Then, and only then......begin to talk to the fox ( chemical vendor)

My opinion only

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MJCronin (1); Noudge79 (1); pjquek (1); Tornado (1)

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