JPH0141909B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a combustion device equipped with a catalyst for purifying unburned exhaust gas generated from a cooking burner, etc.
The present invention relates to the structure of a case containing the catalyst.

Conventional technology This type of conventional device (Utility Model Application Publication No. 18537/1983)
As shown in FIG. 4, a catalyst 22 is housed in a case 23 and attached to an exhaust port 21 of a roasting chamber 20 with screws 24. A hole 25 and a fin 26 were provided on the bottom surface of the case 23, and the catalyst 22 was supported by the outer peripheral edge of the case 23, and a gap 27 was maintained between the catalyst 22 and the bottom surface of the case. Even with this structure, exhaust gas, odors, etc. are spread throughout the catalyst 22 as shown by the arrow.

Problems to be Solved by the Invention According to the conventional device, the catalyst 22 has a screw 2 in the center.
4. Since the outer periphery is supported by the case 23, the rest is floating, and the support is more likely to be damaged than the pieces when subjected to vibrations, shocks, etc. In addition, since it is attached with screws 24, it is troublesome to attach and detach when cleaning due to dirt from use, and the mounting position is also screw 24.
Although the center was determined by this, the circumferential direction was not determined.

The present invention solves the problems of the prior art, and aims to prevent damage to the catalyst, to facilitate attachment and detachment operations for cleaning, and to always keep the attachment position constant.

Means for Solving the Problems In order to achieve the above object, the present invention provides a case containing a catalyst that is detachably attached to an opening that becomes an exhaust port of a roasting chamber, and the case has a number of holes in the bottom surface. Forming a large number of outwardly bent fins, supporting the catalyst over the entire bottom surface, and fitting an outermost fin of the fins into the opening to maintain a fixed mounting position of the case to the opening. It is something to do.

Effect: According to the above means, the catalyst is supported by the entire bottom of the case, and the outermost part of the fins that uniformly disperse and guide the exhaust gas to the catalyst fits into the opening, so that the catalyst is always attached to the opening of the case in the same way. Can be positioned.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 of the drawings. The roasting chamber includes an upper case 2 having an exhaust opening 1 in the center of the upper surface, and this upper case 2.
It consists of a grill sauce pan 6 provided via guide plates 5 on both sides joined to the grill plate 6. A rod-shaped burner 3 is provided in the roasting chamber near the guide plate 5.
A radiant plate 4 that is heated by the burner 3 and becomes red-hot is provided above the burner 3. A grill 7 is placed in the middle of the grill sauce pan 6, and the object placed on it is exposed to the combustion flame of the burner 3 and the radiant plate 4.
Fired using radiant heat. A case 9 with an open top and housing a porous unburned exhaust gas purification catalyst 8 (hereinafter referred to as catalyst) is removably attached to the opening 1 of the upper case 2. The case 9 supports the catalyst 8 over the entire bottom surface, and the hole 11 of the catalyst 8 is provided on the bottom surface.
A large number of fins 12 are bent outward so as to be parallel to the fins 12, and an opening 10 is formed by cutting and raising the fins 12. Furthermore, the outermost fin 12 of the fins 12 of the case 9 is fitted into the opening 1 to serve as positioning so that it can be installed at the same position in the opening 1 at any time when the case 9 is attached or detached. Reference numeral 13 is an outer frame top plate, 14 is a lid for preventing objects falling from above and objects entering, and openings 15 and 16 are provided on the side and top surfaces, respectively.

In the above embodiment, unburned exhaust gas from the burner 3 generated during cooking flows in the direction of arrow A, is uniformly dispersed by the fins 12, enters through the hole 10 in the bottom of the case 9, and enters the hole 11 of the catalyst 8. The water is purified through the water, and is further discharged through the openings 15 and 16 of the lid 14. The fins 12 not only disperse the exhaust air inside the roasting chamber, but also the outermost fins 12 fit into the opening 1, so remove the case 9 from the opening 1 and clean it of dirt. When reinstalling it, it will always be set in the same position as before. In particular, if the mounting position of the case 9 including the catalyst 8 changes each time the case 9 is attached or detached, the exhaust resistance of the torrefaction chamber changes, which adversely affects the combustion of the burner 3. However, the present invention solves this problem. It will be done. Furthermore, since the catalyst 8 is supported on the bottom surface of the case 9, the load is distributed over the whole, reducing the degree of damage caused by vibration, impact, etc.

Effects of the Invention The present invention has the following effects.

(1) Since the case containing the catalyst is always installed in the same position in the opening through which the exhaust gas passes, it is possible to keep the exhaust resistance of the roaster constant and stabilize the combustion of the burner. It has the advantage that it can be used with a simple structure in which the outermost fin of a large number of fins for dispersing exhaust gas is fitted into the opening.

(2) The catalyst is supported across the entire bottom of the case, dispersing the load over the entire area and reducing damage caused by vibration and impact.

(3) Each case containing the catalyst can be easily cleaned.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a combustion device according to an embodiment of the present invention, Fig. 2 is a sectional view of the same essential parts, Fig. 3 is an exploded perspective view of the same essential parts, and Fig. 4 is a sectional view of a conventional example. be. 1... Opening, 2... Upper case, 3... Burner, 8... Catalyst, 9... Case, 10... Hole, 1
2...Fin.

Claims (1)

[Claims] 1. A torrefaction chamber that houses a burner and has an opening on the top surface through which exhaust gas from the burner passes, and a case that is detachably installed in the opening of the torrefaction chamber and that houses an unburned exhaust gas purification catalyst. The case has a plurality of holes and a plurality of outwardly bent fins formed on the bottom surface, supports the catalyst across the entire bottom surface, and has an outermost fin of the fins fitted into the edge of the opening. The combustion device determines the mounting position of the case to the opening.