The cracks increase in length when we ground it out. The only tubes that leak or develop leaks are the ones that have been welded to the membrane. (The welds on the tubes are only about an inch or so in length)
The boiler is a B&W design, 330,000 lbs/hr. The tubes have been welded to the inside of the membrane at two places. The two locations are also where the buckstays are located on the outside of the boiler. The outside tubes have been developing leaks over the years and I was wondering if the...
Why would the outside economizer tubes be welded to the boiler membrane? The boiler is used to burn hog fuel and provide steam for a 20 MW turbine/generator.
