REVERSE FLOW PREVENTION APPARATUS FOR COMMON EXHAUST FLUE AND COMBUSTION APPARATUS HAVING SAME

摘要

The present invention relates to a reverse flow prevention apparatus for a common exhaust flue, and a combustion apparatus comprising the same. More specifically, the present invention relates to a reverse flow prevention apparatus which collects exhaust gases from a plurality of combustion apparatuses and exhausts the collected exhaust gases through a single common exhaust flue while preventing the reverse flow of the exhaust gases from the common exhaust flue to each combustion apparatus, the reverse flow prevention apparatus comprising: a flange part coupled to an exhaust port of the combustion apparatus; an opening/closing device part which is hinge-coupled to the upper part of the flange part and which is opened/closed by a pressure difference between the upper part and the lower part; and a body part which is coupled to the upper part of the flange part so as to accommodate the opening/closing device part. The reverse flow prevention apparatus of the present invention is installed directly in the exhaust port of the combustion apparatus and is then coupled to a common exhaust pipe at the time of installing the combustion apparatus, and thus does not require separate authentication, thereby reducing the time and cost required for authentication.