| 摘要 |
The purpose of the present invention is to provide a burner-heat exchanger structure body improving thermal efficiency by reducing the loss of combustion heat radiated to the outside of a combustion chamber and a mixing chamber at the time of the combustion of a burner, improving durability by preventing the combustion chamber and the mixing chamber from being overheated, and improving assembly performance by simplifying the structure of a cooler for preventing the combustion chamber and the mixing chamber to be overheated. The present invention for achieving the above purpose includes; a mixing chamber (170) mixed with air supplied from a blower (210) and gas for combustion; a combustion chamber (180) in which a mixed air mixed in the mixing chamber (170) is combusted by the ignition of a burner (220); and a heat exchanger (230) transferring, to heating water, the combustion heat of a combustion product generating in the combustion chamber (180). The burner-heat exchanger has a blower connection part (150) connected to a blower (210) in the upper part thereof and a heat exchanger connection port connected to a heat exchanger (230) in the lower part thereof, has double walls (110, 120) so as to have a mixing chamber (170) and the combustion chamber (180) between the blower connection port (150) and the heat exchanger connection port (160), and has a cooler (100) having a cooling passage (130) in which heating water flows is formed between the double walls (110, 120). |
