A spray soot blower

Abstract

The invention discloses a spray type soot blower, which comprises a spray pipe box and a walking device for driving the spray pipe box to move forward, backward, left, and right. The spray pipe box is equipped with a spray hose coiled on a hose turntable. , detection system, guiding system and cooling system, the spray hose passes through the above systems in sequence, and then is output from the hose outlet at the bottom of the spray pipe box and sent to the inside of the furnace to be cleaned, and sprayed out through the nozzle at the lower end of the spray hose. The high-temperature panel superheater within the range of high-pressure water purging and the high-temperature slagging on the heating surface of the membrane wall of the second and third flues undergo intense heat and cold exchange, thereby generating micro-explosions at the slagging place, and the slagging passes through this micro-explosion. Explosion effect, rupture and fall on the heating surface, so as to achieve the effect of dust removal and slag removal.

Description

technical field [0001] The invention relates to a furnace soot blower, in particular to a spray soot blower. Background technique [0002] As the boiler parameters increase in the direction of high temperature and high pressure, the boiler capacity increases. Since the cross-sectional size and height of the furnace cannot increase proportionally, the heat load of the furnace cross-section, the heat load of the water-cooled wall, and the maximum temperature in the furnace all increase with the increase of the boiler capacity. As the temperature increases, the heat of vaporization of water gradually decreases, while the superheated heat required for steam superheating increases greatly, that is, the proportion of heat absorbed by the evaporation heating surface decreases, while the proportion of heat absorbed by the superheater increases. From the perspective of preventing slagging on the convective heating surface, the temperature of the flue gas at the furnace outlet should ...

AI Technical Summary

Problems solved by technology

[0003] However, the increase of the panel superheater and furnace flue will lead to more serious slagging and ash accumulation on the water wall. Boiler slagging will not only affect the output, parameters, thermal efficiency and normal operation of the suction fan of the boiler, but also make exhaust The rise of smoke temperature will also cause a vicious circle, leading to major personal and equipment accidents, resulting in major economic losses

[0004] Therefore, in the design of the boiler, in order to effectively remove the ash in the heating area of ​​the boiler, ensure that the heating surface is clean, and achieve a good heat transfer effect on the heating surface, it is necessary to arrange a soot blower on the heating surface of the boiler, but for this type of panel superheater As for the boiler with the furnace flue, due to the limited space around the boiler, the conventional soot blower cannot achieve the soot blowing effect. At this time, a new type of soot blower is needed to meet the soot blowing requirements.

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