combustion device

Abstract

The invention provides a combustion device. The combustion device comprises a combustion unit (11), a combustion case (8) and an ignition electrode (41). In the combustion unit (11), a burner support (13) is used for integrally supporting multiple single burners (12); a combustion housing (8) contains the combustion unit (11); the ignition electrode (41) generates a spark toward the single burner (12), in order to carry out ignition. An open surface (37) is arranged in the front of the combustion housing (8). A front plate (20) of the burner support covers the open surface (37) of the combustion housing (8). The ignition electrode (41) is installed on the front plate (20) of the burner support (13). The combustion device (1) can be used for precisely arranging the distance between a tip of the ignition electrode to the single burner, in order to prevent bad ignition.

Description

Technical field [0001] The invention relates to a combustion device for a water heater. Background technique [0002] As such a device, there is known a device in which a burner unit is accommodated in a rectangular cylindrical shape, and a heat exchanger or the like provided on the upper part of the combustion box is heated by the combustion of the burner unit. [0003] The combustor unit includes a plurality of unit burners and a combustor support body that connects these unit burners in an aligned state and integrally supports the unit burners. The burner support body supports the individual burners in the aligned state so as to surround the individual burners. [0004] In addition, in such a combustion device, an ignition electrode that ignites the burner unit is installed on the front plate of the combustion box. The top end of the ignition electrode faces one of the single burners constituting the burner unit, and spark discharge is generated between the ignition electrode an...

AI Technical Summary

Problems solved by technology

[0006] However, the relative positions of the combustion box and the burner unit are sometimes misaligned due to the influence of strain on the combustion box or the burner unit or assembly errors

When such a deviation occurs, the distance from the tip of the ignition electrode to the unit burner is extended to be greater than the specified distance, and it cannot be expected that the ignition electrode can perform a good spark discharge, which may cause poor ignition.

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