Water Tube And Fire Tube Boiler Ppt

The heat from the hot gases is conducted through the walls of the tube to the water.

Water tube and fire tube boiler ppt. These boilers is largely used in power development and other industrial like sugar industries cotton industries etc. Treatment of water not so necessary more necessary 6. When the fuel typically natural gas propane or heating oil is burned inside the furnace it. Operating pressure limited to 16 bar under high pressure as 100 bar 7.

These tubes are surrounded by a water jacket. A fire tube as the name suggests has the hot flue gases from the combustion chamber passing through the tubes and out the boiler vent. Transportation difficult simple 5. The main difference between fire tube and water tube boiler are fire tube boiler are internally fired and water tube boiler are externally fired boiler.

The examples of the fire tube boiler are the simple vertical cochran lancashire cornish locomotive scotch marine and velcon boiler. Mode of firing internally fired externally fired 2. Construction difficult simple 4. With the fire tube boiler design the water surrounds the heat source.

The heat from the hot gases transfers through the. Let s elaborate on this difference and why it s important. The boiler is divided into two main types. Water tube boilers are used for high pressure boilers.

11 water tube boiler a water tube boiler is a type of boiler in which water circulates in tubes heated externally by the hot gases flue gases. Water tube boilers in this type of boiler water passes through the tubes while the gases remain in the shell side passing over the tube surfaces used for high steam demand and pressure requirements capacity range of 4 000 120 000 kg hour combustion efficiency enhanced by induced draft fans. Fuel is burned inside the. Powerpoint ppt presentation free to view.

In general condensing boilers are identified by their internal construction as either fire tube or water tube boiler designs as illustrated in fig. Internal furnace boiler fire tube boiler packaging boiler this is the conventional three pass smoke tube design coal wood fired steam boiler having internal furnace. Particulars fire tube boilers water tube boilers 1. Comparison between fire tube water tube boilers s no.

In a water tube design the heat source surrounds the water. Rate of steam production lower higher 3. This is the most comprehensive guide on comparison or differences between fire tube boiler and water tube boiler. This comes in dry back semi wet back and fully wet back options and is most suitable for manual firing of coal wood or briquettes.

Since fire is inside the tubes and hence it is named as fire tube boiler. With any boiler system the creation of steam starts with the burner. Fire tube boilers 8.