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How to avoid the blame game

24 April 2013

All steam raising equipment requires the feed water to be treated to prevent corrosion. Both the quality of the steam and the longevity of the boiler producing it are completely dependent upon the condition of that water feed. Babcock Wanson explains

Poorly prepared water can cause rapid and costly damage to the heating surface and can lead to the end of a boiler’s working life in a short period of time. In its most basic form, water treatment for steam raising boilers involves the controlled addition of a chemical oxygen scavenger, sludge conditioning and pH control correction.  


Experience shows that poor husbandry is the main culprit of inadequate water treatment services.  It is very important to test the feed water condition at different times of the working day and on different days of the week to glean an accurate picture. A treatment consultant who simply books a monthly repeat visit, same day, same time, cannot provide an accurate water treatment service. He also needs to adjust the dosing rate if there are large variations to the temperature of the feed water and be sure to use quality treatment chemicals.


If the main points of concern in water treatment are readily identifiable what’s the issue? While a steam boiler always requires properly treated water, this service has traditionally been supplied by a third party, independent to the equipment manufacturer. This is quite acceptable if they have a good enough knowledge and experience of the type of boiler employed and the way the steam is used by the process.  However, water treatment companies specialising in steam boiler treatment are few and far between, with the majority offering a range of water related services, with water treatment for process heating added as a bolt-on service.  


If problems do occur questions arise as to the root cause and who holds the underlying responsibility. The problem is that you’re dealing with two separate parties who won’t take responsibility for the damage to the boiler, leaving you to pay to put it right.  


There’s no easy way out of the blame game for the customer.  What I can suggest instead is to avoid this potential pitfall altogether and employ the equipment manufacturer directly to undertake the water treatment instead.  Not only do they have a superior understanding of the equipment which makes for a more effective, high quality water treatment service for the customer, but a single-source solution provides the customer with peace of mind and one company to deal with in the event of a fault.


Not every manufacturer will offer such a service and those that do still need to be vetted to ensure the quality of the water treatment service.  


Using our in-depth knowledge of boilers, Babcock Wanson now offers a range of water treatment programmes for steam generators, which is backed-up with a 5-year corrosion warranty on the boiler coil.  In the unlikely event of feed water deficiencies causing the coil to corrode within the first five years, we will replace it.  


To provide the level of service that meets our requirements, we have established a partnership with water treatment specialist Deep Water Blue. Employing highly qualified and professional chemists ensures the treatment and testing regime is completed to obtain an accurate picture of a site’s specific requirements under a variety of conditions.  Only top-grade, environmentally friendly treatment chemicals that are safe and simple to handle are used.  In between scheduled consultancy visits the vSteam web portal allows customers to simply enter daily readings on-line and receive real-time feedback support. 


At Babcock Wanson we see first-hand the effects of poor boiler water treatment and, more importantly, on our customers’ ability to run their plant effectively.  We believe it’s time for the boiler manufacturers to step up and provide customers with the ongoing support they require by providing quality water treatment services and taking responsibility for what goes in, as well as what comes out, of the boiler.  But it’s equally important the customer understands that to ensure equipment longevity, the lowest service level reflects the quality of the chemicals being used and the skill levels of the consultants undertaking the service.  It is a false economy.  By investing in quality water treatment, from those who have extensive first hand equipment knowledge, you ensure long plant life, uninterrupted service and peace of mind.


 
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