FIELD: heat engineering.
SUBSTANCE: invention relates to heat engineering and can be used in heat exchangers of boilers of water heaters, panels with hot water. Disclosed is a closing rib comprising a front portion and a rear portion perpendicular to the forward/backward direction and spaced apart in the forward/backward direction, connecting part connecting the front part and the rear part, a leg extending from the upper end of the rear part to the upper side, wherein one direction perpendicular to the forward/backward direction is defined as the up/down direction, and the protrusion protruding from the leg to the rear side.
EFFECT: increased efficiency of heat exchanger due to prevention of damage of heating ribs.
37 cl, 23 dwg
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