Fittings of the burner when why be being used will be oscillatory
By ShangHai HT 2020-06-14 15:00:08
There is the alternant process of quantity of heat and Leng Yuan between boiler and burner. The temperature of hot flue gas inside the chamber of a stove or furnace can be as high as 800 ℃ to come 1000 ℃ , support combustion gas should enrage temperature to be in for end of high temperature gas turbine 500 ℃ , and only 25 ℃ reach the airy temperature that combustion uses 50 ℃ , arouse the potential that produces vibration so. Why is fittings of the burner when moving met oscillatory?
The bottom of the chamber of a stove or furnace of boiler is combustion area, upside and flue are interlinked, the combustion that there is constant flow to wear inside the chamber of a stove or furnace when moving makes gas, space of whole the chamber of a stove or furnace formed field of an aeriform shedding.
The inside of boiler setting is spread the effect of a dynamic pressure by the gas inside furnace, side gets outside the action of atmosphere. When extrude of going from place to place should be being enraged to fluctuate now inside furnace, with respect to vibration of can incentive boiler setting, boiler coal suffers to enrage the impact with pressure big wave motion in actual production, cause combustion to be not stabilized, wave motion of negative pressure of the chamber of a stove or furnace is bigger, side of inside and outside presses poor change frequent, bring about vibration of boiler boiler setting.
The boiler setting vibration that by combustion kinetic reason causes is inevitable, the function of buckstay is protective the chamber of a stove or furnace and flue pressure moves in the chamber of a stove or furnace or deflagrate do not suffer below operating mode destroy, raise the tigidity of boiler setting namely through adding buckstay. The tigidity of buckstay is not worth or design of installation short of asks to be able to produce more serious boiler setting vibration.
The natural frequency that changes burner and perimeter of burner larynx mouth are in the frequency of the vortex flow that combustion generates. Arouse vibration of low frequency of flue gas column to prevent blaze to swing, want to improve burner structure and combustion operating mode.
Can change the flaming inside the chamber of a stove or furnace to be led from Zhen Pin, if change one's costume or dress superheater of type of double-faced water-cooling wall, big screen, level. Improve burner fittings register and bellows composition, if add outfit stabilizer, all wind clapboard. Should reasonable design and decorate flue gas recycle entrance position and adjust control means, those who avoid the abnormal appearance such as flue gas short circuit appear. So, the possibility that creates burner fittings vibration is above reason.
Above is the relevant content of burner, hope to be helped somewhat to everybody.
