Gas burner of _ of burner of low nitrogen of _ of burner of boiler low nitrogen

Burner of boiler low nitrogenAfter the technology innovates, Gas burnerthe type already affirmed, but plant in the light of different coal, the empty tolerance that the change of the temperature of environment of different, combustion of the load of different, boiler of combustion requirement, place requires is different, of NOx generate a quantity to will be changed, so boiler runs a method to will have crucial effect, the main countermeasure that reduces NOx yield consequently is combustion promotion is adjusted, want below the principle that accords with standard of environmental protection eduction meanwhile have both on older rate movement but durative. Concrete step is as follows:

One, GasBurnerInside furnace statified match coal to mix burn:

The mix into matching coal that combines boiler cheek by jowl is burned, in have both light eduction content, firmly wait for field requirement to issue older rate to go up coal of digestive economy material benefit is planted, recommend soft coal appropriate to protect boiler to be lighted firmly in burner of configuration ground floor; Lignite volatilizes divide Gao Yi to configure inter layer burner low oxygen combustion can hold those who accuse NOx to cause; Configuration of meager coal appropriate is beneficial to in burner carrying a layer on the head on fire and classify again combustion. Grind coal machine to answer each meanwhile the basis is different coal is planted the fineness of economic material benefit that affirms its are reasonable.

2, Gas burnerBasis coal plants, load offers wind:

Working state issues rating load, soft coal volatilizes cent basically is used high at be being lighted firmly in rock-bottom burner, appropriate matchs medium wind, if deserve to go up,fresh gale measures a meeting influence to hold those who accuse NOx to cause burn with the low oxygen inside one whole furnace; If lignite matchs what fresh gale measures a NOx to go up make an amount bigger, appropriate matchs wind less; Meager coal, anthracitic volatilize fraction is small, offer wind more to ensure appropriate burning ashes. The consideration is lighted firmly, low oxygen, scalar, appropriate of the method that offer wind is chosen shrink the waist pours treasure tower, namely: Open of rock-bottom inlet valve spends 35-60% , open of intermediate inlet valve is spent do not answer under 11% , open of inlet valve carrying a layer on the head spends 60-75% , do not recommend open of SOFA inlet valve to spend last in one. When load decreases, in material benefit of the economy on the foundation that safeguard lights firmly coal is planted mix into deserves to occupy than can increasing, beneficial to holding those who accuse NOx to cause.

3, Gas burnerPromotion holds accuse boiler to run the amount that contain oxygen:

The sources of energy contains the drill of the volume that oxygen measures to accuse in boiler aflame, not only influence boiler moves but durative, particularly important is hold to what NOx causes accuse to removing low nitrogen of boiler of decisive function;Combustion technologyAfter innovation, should have clear knowledge to low oxygen combustion more, working state issues rating load, light with meager coal, anthracitic the chamber of a stove or furnace appropriate of the quantity that contain oxygen is held accuse to be in 3.6-4% , light with soft coal the chamber of a stove or furnace appropriate of the quantity that contain oxygen is held accuse to be in 2.3-3% , light with lignite the chamber of a stove or furnace appropriate of the quantity that contain oxygen is held accuse to be in 2% ,

4, Gas burnerPromote hot project automata:

BoilerLow nitrogen burnerAfter the technology innovates, the sources of energy is deferred accordingly in the combustion process inside the chamber of a stove or furnace and lengthen, the systematic control of hot project is worth surely, hold accuse a curve to should do corresponding promotion to adjust. The boiler after be being transformed discovers in locomotive condition actually, when aircrew promotes load, wind force adjusts the change that lags behind at coal quantity significantly, vapor is warm rise quickly when; reduces load, coal quantity adjusts the change that lags behind at wind force significantly, vapor is warm drop quickly; is had advocate steam pressure force and advocate reheat vapor is warm the phenomenon that fluctuates considerably, the investment with automatic system of the quantity that contain oxygen is not coordinated significantly. Consequently, should promote Yuan Jing voice, dynamic load, coal quantity is held accuse a curve, ou of solution of door of cold, sirocco operates promotion milling system accuse, promotion reduces system of Wen Shui automation, promote frequency modulation boiler advocate the make a present of before accusing, promotion load answers working ability.