Think about the most efficient way to generate steam for your process and heating system – how would that you do that?
By using multiple smaller steam boilers, the Miura system provides a quick response to steam demand and only burns the fuel necessary to meet that demand. Compared to traditional firetube or large watertube boilers, Miura’s smaller vertical watertube design provides more steam capacity using less space and can rapidly go from a cold start to full steam pressure in less than 5 minutes.
The smaller size also does not require space allowance for tube extraction, or the door swing space required by firetube boilers. The more compact Miura design can still produce the same amount of steam, due to the higher heat transfer surface area per gallon of water in the boiler. This, coupled with the unique “floating header” design of the vertical watertube pressure vessel, allows each boiler module to quickly react to changes in steam demand without concern over thermal shock that would damage a conventional firetube or large watertube boiler.
The compact size of each Miura boiler allows multiple boilers to be installed in the same space as allocated for one large conventional boiler and provide greater capacity for the same footprint.
Larger conventional boilers require a large mass of water to be heated and maintained at the proper temperatures to provide enough steam to meet system demands. This requires an enormous heat load to achieve and maintain steam pressures whether the system requires it or not. With large watertube and firetube boilers, much of this heat is lost through radiation and convection losses from the boiler surface and flue vents. In many cases, a second boiler must be set in a “idling” mode to take over the load of the primary boiler if the primary boiler goes down for some reason. This idling requires fuel to be burned that never gets used.
Each Miura boiler has its own integral burner system, so each can be fired independently. The system burns only as much fuel as necessary to meet demand, and individual burners can be quickly stopped and started to match the system load. This flexibility, along with reduced footprint, reduces heat losses to a fraction of a conventional boiler. The quick start-up and response of the Miura boilers eliminate “idling” boilers.
Waste heat recovery systems are integral to each Miura boiler. A feedwater economizer channels the exhaust heat through a series of tubes that pre-heat boiler feedwater. This recovered heat energy boosts the Miura efficiency by 5%, making the most efficient standard packaged steam boiler on the market.
Miura supplies a BP-201 Master Controller, which operates multiple boiler modules in a way that rapidly meets system demand without wasting fuel energy by starting and stopping boilers and modulating their firing rates from low fire to high fire. This system also maintains consistency and automatically operates the modules to operate as one system and equalizes each boiler’s operating hours.
Miura’s SteamNet offers a real-time monitoring, reporting, and communicating device for Miura boilers and boiler room ancillaries. SteamNet uses an industrial PC, a touchscreen display, and PLC to provide users with equipment displays and reports, and alerts operators to system alarms and notices. This data can be sent via Modbus TPC or other communication protocol to report to building automation systems or plant wide DCS systems.
With a full range of boiler room ancillaries, Miura provides a way to interconnect boilers, feedwater and deaerator systems, water softeners, and chemical treatment to give the operator or facility manager a single-source overview of the entire steam plant. This is accomplished with a single communications system rather than multiple communications systems.
Learn more about the total Miura package through the links below:
The following systems can also be integrated with Miura, Superior, and other boiler systems:
Contact us for more information on how Miura’s modular steam systems can work for your facility.