Combustion apparatus

Abstract

An exhaust channel of a combustion apparatus is defined by an upper sloping plate and a lower sloping plate. The lower sloping plate contains a rising part and a lower sloping wall. A water droplet baffle plate is positioned across an interspace from the rising part. The interspace is brought into fluid communication with the exhaust channel through an upper surface opening while being brought into fluid communication with a bottom of a heat exchange chamber through a communication opening. A collision wall part of the water droplet baffle plate is disposed in close proximity to a lowest fine tube so as to oppose against a combustion exhaust flow. Water droplets adhere onto the collision wall part. Water droplets failing to adhere to the collision wall part fall through the upper surface opening positioned over an upper end of the collision wall part.

Description

TECHNICAL FIELD[0001]The present invention relates to a combustion apparatus equipped with a latent heat exchanger (a heat exchanger for the recovery of latent heat). In particular, the present invention is concerned with technology for the prevention of scattering of the condensed water when combustion exhaust having passed through the latent heat exchanger is let off from the exhaust outlet port.BACKGROUND ART[0002]In recent years, there has been known a so-called condensing-type combustion apparatus made up of a primary heat exchanger (a sensible heat exchanger) configured for heat-exchange heating by the heat of combustion of a combustion burner and a secondary heat exchanger (a latent heat exchanger) configured for the recovery of latent heat from the combustion exhaust having undergone heat exchange in the primary heat exchanger. And, in such a condensing-type combustion apparatus, when combustion exhaust comes into contact with the latent heat exchanger, water vapor present i...

AI Technical Summary

Benefits of technology

The present invention is a combustion apparatus that prevents the scattering of drain water from the exhaust port and reduces noise levels during operation. It achieves this by ensuring that the interspace is in fluid communication with the exhaust channel through an upper surface opening and a communication opening in the bottom of the heat exchange chamber. Additionally, the water droplet baffle plate is positioned at an angle to facilitate the separation of water droplets from the plate. This prevents the adhesion of water droplets to the plate and ensures that the combustion exhaust flow is collided against the plate, resulting in the separation of water droplets. These technical effects contribute to the quietness of operation and improve the performance of the combustion apparatus.

Problems solved by technology

Incidentally, the condensing-type combustion apparatus requires space necessary for the arrangement of the latent heat exchanger.

This may cause inconveniences, such as a lack of space for placing a sound absorption material for the purpose of noise control, a complexity of the route through which the combustion exhaust passes and other troublesome conditions.

Therefore, it is quite likely that the generation of noise associated with combustion and the generation of noise associated with the passage of combustion exhaust will take place.

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