How Do Miura Boiler & Conventional Boiler Failures Differ?
When you own a boiler as part of your business, your biggest fear is that something will go terribly wrong with the boiler and there will be disastrous consequences. The good news is that not every boiler failure will cause a catastrophic disaster. For instance, when a Miura once-through water tube boiler fails, the result is much different than when something goes wrong with a conventional firetube boiler. A Miura boiler contains a little over 100 gallons of pressurized steam and water, versus a firetube boiler producing which could hold almost 2,000 gallons of pressurized water and steam. The energy contained in the smaller Miura boiler is a small fraction of that contained in the firetube. If a rupture occurs, the result is proportionally miniscule.
Conventional fire tube boilers typically operate with a large volume of water. However, if the water level runs low, which is possible at times, the metal will shrink. If the metal shrinks and there is an introduction of cold water into the boiler, the metal may rapidly expand and potentially cause an explosion. Such explosions, while rare, can be catastrophic in nature. Not only do they impact a large area, but they can also be potentially deadly for those nearby.
Meanwhile, Miura once-through boilers will not cause a significant explosion, even if they do fail. Tests have shown that if a Miura boiler explodes, it will release energy from the stack of the boiler, not the doors, as is the case with conventional boilers. If energy is released from the stack, it will minimize any damage caused by the boiler failure.
Even if there is an issue, Miura boilers are equipped with a monitoring system and excellent safety controls that can detect potential issues. A Miura boiler will not run if it does not satisfy its safety checks. This kind of safety measure isn’t typically found on older, conventional boilers. This makes even a small malfunction less likely to occur. Miura technicians can also monitor and diagnose boiler issues remotely using the Miura Online Maintenance System (MOM), which provides real-time diagnostic boiler data.
Of course, while safety measures and monitoring systems are nice, it’s Miura’s reputation for safety that speaks for itself:
“Our company has installed and or serviced roughly 250 compact water tube Miura boilers,” says Brandon Hargett of Boiler Masters, Inc., “and we’ve never had a documented water side explosion on any of them. Even going back to Japan, where the Miura company was first founded, they have not had a single catastrophic failure either.”