FIELD: boiler manufacture for protection against rubbing-out at combustion in boilers of coals containing abrasive ashes.
SUBSTANCE: the ash-protective probe for tubes of the heat-transfer tube bunch has for each tube of the tube bunch a stabilization section and a butt-joining section, whose shape is similar to the shape of the tube bunch, differing by the fact that the stabilization section for each tube of the bunch is provided with an inlet cellular component, whose walls are joined to the walls of the adjacent inlet cellular components adjoining them and has a transient section, and the butt-joining section is installed in the tube of the bunch, besides, the walls joined to the walls of the adjacent cellular components have a welded attachment in the points of butt-joining.
EFFECT: enhanced adaptability to mounting and maintainability whenever it is necessary to replace the ash-protective probe and bunch tubes.
1 dwg
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