Boilers are often distinguished by fuels that power them. The kind of fuel makes an essential difference in operating costs and environmental impact, so it’s important to learn about the various types of boiler fuel.
Coal, is a common boiler fuel. It dominates the global energy arena due to its abundance, affordability and wide distribution across the world. The most commonly used coal fuels include anthracite, bituminous coal, sub-bituminous coal, lignite and peat.
Industrial boilers are machines or engineering devices whose primary objective is the generation of steam. The heat that is generated, which can come from any energy source, causes it to be transformed into energy for use, either through a liquid phase medium or steam.
1. In terms of boiler body structure, WNS series gas-fired (oil-fired) boilers are fire tube boilers; SZS series gas-fired (oil-fired) boilers are water tube boilers;
2. In terms of boiler working pressure, if the boiler pressure is below 1.6Mpa, the choice is usually the WNS series gas-fired (oil-fired) boiler, if the boiler pressure is above 1.6Mpa, the SZS series gas-fired (oil-fired) boiler may be a better solution. Some high-pressure boilers also adopted SZS series gas-fired (oil-fir...
The bed temperature rises sharply.
Oxygen levels go down and sometimes drop to zero.
The electric current of primary air fan is less and wind pressure of air compartment is higher.
Negative pressure of furnace is increased while the electric current of induced draft fan is reduced.
The slag discharge is difficult or unsuccessful.
When appearing bed clinkering, the bed temperature and bed pressure will be uneven distributed and not at normal condition; the measuring point of part bed tempe...
The air in the economizer and condenser has not drained yet when firing. The safety valves of economizer and condenser need to be turned on to exhaust steam. Return pipe valves also need to be turned on, enabling the steam in the economizer and condenser to return to softened water tank.
The outlet water temperature is so high that economizer and condenser will have vaporization phenomenon. The outlet water temperature of economizer and condenser need to be controlled.
The check valve of the...
(Question Details) Specific Performance:(1) The bed temperature has risen sharply.(2) The oxygen level drops even to zero.(3) The current of the primary blower is reduced, and the wind pressure in the wind chamber is high and fluctuates.(4) The furnace negative pressure increases and the induced draft fan current decreases.(5) Difficulties in slagging.(6) If coking in low temperature, the bed temperature, bed pressure distribution is uneven, the deviation is too large, the bed pressure, the plenum pressure, the bed temperature is not normal, and the local bed temperature measurement point is not normally raised or lowered.(7) The bed pressure indicator value fluctuates little. Answer: causes of failure :(1) Improper operation, resulting in overheated bed temperature and coking.(2) The primary air volume during operation is kept too small, which is lower than the minimum fluidized air volume, so that the material can’t be well fluidized but piled up, the temperature field of the entire
