The problem of applying of RO for the preparation of feed water for steam boilers | tiwater.info
Published on by Ivan Tikhonov in Technology
The use of reverse osmosis for water desalination technology for low-pressure steam boilers is currently being increasingly used. The main advantage of such water treatment systems is that there is no need for continuous purging of steam boilers and steam condensate has a low corrosion activity.
The value of continuous purging of steam boilers is determined by the value of the salt content of feed water. The higher the salt content of feed water, the higher the value of continuous purging of steam boilers and the higher the gas overspend. Since reverse osmosis desalts water, the value of continuous purging, as a rule, is lower than 1% of the boiler's steam capacity and, accordingly, can be provided by periodic purging of the steam boiler.
The second important feature of the application of reverse osmosis is the low content of carbon dioxide in the return condensate.
Taxonomy
- Industrial Water Treatment
- Technologies & Equipment
- water treatment
3 Comments
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They've only been doing it for 50 years.
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There are several advantages of using RO after BX exchange providing that suspended solids don't get carried through and cause blockage of membranes. The other issue can be a source of iron and manganese in the water supply. It certainly reduces chemical usage due to increased cycles of concentration and definitely reduces condensate corrosion. There are a water qualities where there is little benefit i.e low natural alkalinity, low hardness and low dissolved solids. There is quite a high reject level of water, but if this can be used for sanitary or other uses then none of the water is wasted.
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An interesting look at Reverse Osmosis water desalination/feed water.
1 Comment reply
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Thank you. I try to show the hidden advantages of RO for boilers
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