FIELD: heat exchange.
SUBSTANCE: invention relates to a heat exchanger for the recovery of waste heat. Heat exchanger comprises: a bottom plate formed so as to form an inlet for the exhaust gas therein; a top plate formed so as to form an exhaust gas outlet therein at a location opposite the inlet for the off-gas; a first side plate formed in such a manner as to form a plurality of first side through holes therein; a second side plate configured to form a plurality of second lateral through holes in the locations opposite the first side through holes; a third side plate and a fourth side plate for connecting the first side plate and the second side plate; and a plurality of heat exchange tubes constituting a titanium material tube for parallelly connecting the first side through holes and the second side through holes.
EFFECT: prevention of corrosion of heat exchange tubes.
6 cl, 10 dwg
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