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Explanation of boiler related terms (III)
1. Boiler heating surface
The heating surface of a boiler refers to the interface that absorbs heat from the heat release medium and transfers it to the heating interface, such as the furnace liner, cylinder, and pipes of the boiler.
2. Radiant heating surface
The heating surface that absorbs heat from the exothermic medium through radiative heat transfer generally refers to the heating surface within the furnace that can absorb radiative heat (in direct contact with the fire), such as water-cooled wall tubes, furnace liners, etc.
3. Convective heating surface
The heating surface that absorbs heat from high-temperature flue gas through convective heat transfer usually refers to the heating surface through which the flue gas passes, such as smoke ducts, convective tube bundles, etc
4. Boiler thermal efficiency
Boiler thermal efficiency refers to the percentage of effectively utilized heat output by the boiler compared to the fuel heat used at the same time
5. Fuel consumption
The amount of fuel consumed by a boiler per unit time is called fuel consumption.
6. Pollutant discharge volume
The water free flow discharged from the boiler is called the discharge volume.
7. Water tube boiler
A boiler with flue gas flowing outside the heating surface tube and water flowing inside the tube is called a water tube boiler.
8. Shell boiler
A boiler whose heating surface is mainly arranged inside the shell (cylinder) is called a shell boiler, also known as a fire tube boiler