Why Miura Water Tube Boilers Are More Efficient Than Traditional Fire Tube Boilers. The water is supplied in shell and outside tubes while hot gas is supplied inside tubes so the water volume can not be shaken easily when the fire tube boiler is running. A fire tube boiler transfers heat through tubes via thermal conduction, which then heats the water in the container and formulates steam.
When choosing a steam boiler for your facility, you typically have a choice between a water tube or a fire tube design.While both may have their advantages in certain situations, from an efficiency standpoint, Miura water tube boilers are far more efficient than fire tube boilers. Basically, this type of boiler includes two drums namely steam, lower or mud drum.
As there is a smaller volume of water in the tubes in a water tube boiler than a fire tube type, they produce steam much faster and are exceptionally responsive. 3. Instead of the water being outside the tubes, it circulates inside the tubes and is heated externally by the combustion gases. Firetube boilers have easy access to the boiler’s firesides and tubes can easily be replaced without additional repair of the boiler. Difference between fire tube boiler and water tube boiler. This is the basic definition of water tube boiler. From the perspective of heat transfer: A boiler nothing but a heat exchanger wherein a hot fluid (flue gas) supplies heat to the cold fluid (water) such that it evaporates. The difference between fire tube boiler and water tube boiler depends on many factors. In other words, the boiler is the pressure vessel that contains the water. Efficiency of the water tube boiler is more than that of fire tube and lies within the range of 85 to 90 %.
As in a water tube boiler, water passes through boiler tubes while combustion gases remain in the shell side, passing over the tube surfaces. When fire tube boilers run low on water, the metal in the boilers shrinks. From the perspective of heat transfer: A boiler nothing but a heat exchanger wherein a hot fluid (flue gas) supplies heat to the cold fluid (water) such that it evaporates. A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them. Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded by water.. i.e (hot gases- outside the tubes and water- inside the tubes). In watertube boilers, the arrangement is reversed. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam. We have 2 Boilers of 100 TPH capacity with 41 Bar Pressure rating. This is the basic definition of water tube boiler. Advantages of Water Tube Boiler. Normal efficiency of the fire tube boiler is about 80 to 85 % but this can be increase or decrease by using different a accessories. Although firetube boilers are smaller in design, they have a larger water volume than similar size watertube boilers, causing them to take longer to bring up to operating temperature from a cold start. Fire tube boiler is so easy to use, operate, clean and maintain 3. Advantages of fire tube boiler: 1. They are also extremely efficient, operating at higher pressure, and can produce saturated or superheated steam depending on the design and application they are required for. Scotch Fire Tube Boiler Design. 2. We need to replace the Tube bundles of both the above Boilers. a. The water tube boiler diagram is shown below, and these two drums are associated via two tubes such as downcomer and riser. Fire tube boiler vs Water tube boiler. Water Tube Boiler: * Water circulates in tubes and heated externally by hot gases. Instead of having vertical metal tubes filled with water, a firetube boiler has horizontal tubes filled with heat from the burner flames. The scotch fire tube boiler design is most commonly referred to as the scotch marine boiler. Additionally, the boiler has a larger furnace and simplified design for reduced stresses within the vessel. With firetube boilers, flue gases are directed through vertical or horizontal steel tubes that are surrounded by the water for heating, and typically go through two, three, or four passes, or changes in direction. Firetube boilers have easy access to the boiler’s firesides and tubes can easily be replaced without additional repair of the boiler. Designed with our exclusive “EX” technology, the boiler offers superior combustion along with extended surface tubes that transfer 85% more heat than traditional tubes.
1 Boiler is Water Tube Boiler and another one is Fire Tube Boiler. A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them.
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