MI Boiler Operator case studies
MI Boiler Operator · Put your knowledge to work in context.
The Michigan Boiler Operator credential is issued through the Michigan Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes. It is aimed at people who operate and maintain steam and hot-water heating boilers and who need to demonstrate competence to a state licensing authority, typically stationary engineers, building maintenance technicians, institutional plant staff, and industrial facility operators. The MI Boiler Operator case studies are 5 cases and about 2,968 words.
1New Watertube Installation: Support, Alignment, and Hydrotest
A contractor is installing a 20,000 lb/h packaged watertube boiler rated 150 psig in an existing plant. The unit is 18 ft long, 8 ft wide, and weighs 31,000 lb empty.
656 words, about 3 min2Water Hammer on a Cold Steam Main After Softener Bypass
After a three-day outage, a 500 hp firetube boiler rated 150 psig is being returned to service. The 8 in steam main is 180 ft long and has three drip legs with thermodynamic traps; the line was not warmed.
569 words, about 3 min3Low-Water Cutoff Failure and a Simmering Safety Valve
A 400 hp firetube boiler, 150 psig, has a float-type low-water fuel cutoff, a modulating feedwater valve, and a safety valve stamped 150 psig. During a busy shift, the boiler trips on low water.
595 words, about 3 min4Used Boiler With No Data Report and an Uncertified Relief Valve
A used 250 hp firetube boiler rated 150 psig is purchased at auction and moved to a Michigan plant. The nameplate is painted over; the U-1 data report and ASME stamp are not available.
591 words, about 3 min5Burner Instability After Gas Regulator Replacement
A 25 MMBtu/h natural-gas burner on a 30,000 lb/h watertube boiler is unstable after a fuel pressure regulator replacement. At high fire, O2 reads 1.2%, CO 900 ppm, stack temperature 510°F, and the flame scanner signal fluctuates.
557 words, about 3 min