JPH0594608U - Cooker - Google Patents

Abstract

(57) [Summary] [Purpose] Part of oil fumes, odors, etc. generated in the heating chamber are thermally decomposed by the food heating heater to reduce the burden on the exhaust purification catalyst and activate the exhaust purification catalyst by the food heating heater. And improve the purification capacity. [Structure] An exhaust gas purification catalyst 10 is arranged between a ceiling wall 7a of a reflection plate 7 and a wall of an exhaust duct 9 located immediately above a heater 5 for heating a food 4, and the reflection plate 7 stands up. An exhaust hole group 8 is provided on the wall, and exhaust gas from the heating chamber 1 is exhausted into an exhaust duct 9 and then brought into contact with the exhaust purification catalyst 10.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to exhaust gas purification of oil smoke, odor, etc. generated from foods in cooking in a heating cooker having a radiant heater.

[0002]

[Prior Art]

 In order to purify oil fumes, odors, and other gases that are generated during heating and cooking, the exhaust purification catalyst and heat of the cooking heating heater are activated in the exhaust passage from the heating chamber to activate the exhaust purification catalyst. A heating cooker provided with a heat transfer member that transfers heat to an exhaust purification catalyst is disclosed in Japanese Utility Model Laid-Open No. 137607/1990.

With such a configuration, it is difficult to maintain the exhaust purification catalyst at the high temperature required for activation of the exhaust purification catalyst, and therefore the purification capacity cannot be fully exerted. Furthermore, all of the fumes, odors, and other gases generated in the heating chamber must be treated by the exhaust purification catalyst, which places a large load on the exhaust purification catalyst.

[0004]

[Problems to be solved by the device]

 Part of gas such as oil smoke and odor generated in the heating chamber is thermally decomposed by the food heating heater to reduce the burden on the exhaust purification catalyst, and the food heating heater efficiently activates the exhaust purification catalyst to purify the exhaust. To improve the purification capacity of the catalyst.

[0005]

[Means for Solving the Problems]

 The present invention is directed to a heating chamber for housing food, a radiant heater for heating food, a reflector for covering the heating heater and reflecting radiant heat rays to the food, and oil smoke generated in the heating chamber on the reflector wall. A group of exhaust holes for discharging odors and the like, an exhaust duct for covering the reflective plate with a predetermined distance to guide the exhaust from the group of exhaust holes to the outside of the heating chamber, and a ceiling wall of the reflective plate and an exhaust duct wall. An exhaust gas purifying catalyst that purifies the exhaust gas from the exhaust hole group is disposed between the exhaust hole group, and the exhaust hole group is arranged upstream of the exhaust gas purifying catalyst.

[0006]

[Action]

 By installing an exhaust purification catalyst between the ceiling wall of the reflection plate that reflects food and the exhaust duct wall, the radiant heat rays from the heater can be easily maintained at the high temperature required to activate the exhaust purification catalyst. You can Furthermore, a group of exhaust holes is provided on the reflection plate wall upstream of the exhaust purification catalyst so that the exhaust gas from the heating chamber is discharged into the exhaust duct and then passes through the exhaust purification catalyst. Flows evenly.

[0007]

【Example】

 1 and 2 are a sectional view and a plan view of a heating cooker according to an embodiment of the present invention, in which 1 is a heating chamber, 2 is a plurality of protrusions 3 formed on both side walls of the heating chamber, and food 4 is The placing plate 5 to be placed is disposed above the heating chamber 1, and is a tubular radiant heater for heating the food 4. The upper surface of the heater 5 is an infrared ray that efficiently reflects radiant heat rays in a desired direction. The reflective coating 6 is formed.

Reference numeral 7 is a reflection plate that covers the heater 5 and reflects the heat rays radiated from the heater to the food 4. Reference numeral 8 is provided on the standing wall of the reflection plate 7 to heat oil smoke, odor, etc. generated in the heating chamber outside the heating chamber. A group of exhaust holes for discharging to the outside of the cooking device, and an exhaust duct 9 for discharging the exhaust gas from the group of exhaust holes 8 to the outside of the cooking device. It is arranged. An exhaust purification catalyst 10 purifies the exhaust gas from the exhaust hole group 8. The exhaust purification catalyst 10 is arranged in contact with the top wall 7a of the reflection plate 7 and the exhaust duct 9 wall.

According to the above configuration, by locating the exhaust purification catalyst 10 directly above the heater 5, it is possible to easily and stably maintain the high temperature required for activation of the exhaust purification catalyst 10 and to improve the gas purification efficiency. Can be greatly improved.

Further, since the exhaust plate group 8 is provided in the reflection plate 7, oily smoke, odor, etc. generated from the food due to the progress of heating and cooking gathers in the reflection plate 7 due to heat convection, and is located near the heater 5. Since it passes through and is discharged to the outside of the cooking device, part of the oil smoke and odor is thermally decomposed by the heater 5, and the purification load on the exhaust purification catalyst 10 is reduced.

Further, since the exhaust hole group 8 is provided in the reflection plate 7 located upstream of the exhaust purification catalyst 10, the exhaust gas from the heating chamber 1 flows to the entire area of the exhaust purification catalyst 10 to make the exhaust purification catalyst effective. Can be used for. By the way, when an exhaust hole group is provided in the reflection plate 7 at the portion where the exhaust purification catalyst 10 abuts as shown in FIG. 3, the exhaust from the heating chamber flowing in the exhaust purification catalyst 10 has a small ventilation resistance as shown by an arrow. The exhaust gas purification catalyst 10 on the side in contact with the exhaust duct located on the exhaust upstream side is not effectively used because it flows toward the downstream side of the exhaust duct.

[0012]

[Effect of the device]

 Since the exhaust purification catalyst is placed between the ceiling wall of the reflector located directly above the heating heater and the exhaust duct wall, the heating heater that heats the food is the high temperature required to activate the exhaust purification catalyst. It can be easily and stably maintained and the purification capacity of the exhaust purification catalyst can be improved. Further, since the exhaust hole group is provided on the reflection plate wall located upstream of the exhaust purification catalyst so that the exhaust gas flows evenly over the entire area of the exhaust purification catalyst, the exhaust purification catalyst can be effectively used. Therefore, the gas purification efficiency can be improved in combination with the thermal decomposition by the heater.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a heating cooker according to an embodiment of the present invention.

FIG. 2 is a plan view of the heating cooker according to the embodiment of the present invention.

FIG. 3 is a diagram for explaining a flow in the exhaust purification catalyst when a group of exhaust holes is provided in a reflection plate at a portion where the exhaust purification catalyst comes into contact.

[Explanation of symbols]

 1 Heating Chamber 5 Heating Heater 7 Reflector 8 Exhaust Hole Group 9 Exhaust Duct 10 Exhaust Purification Catalyst

Claims (1)

[Scope of utility model registration request] 1. A heating chamber for storing food, a radiant heater for heating the food, a reflector for covering the heater and reflecting radiant heat rays to the food, and oil smoke generated in the heating chamber on the reflector wall. A group of exhaust holes for discharging odors and the like, an exhaust duct for covering the reflecting plate with a predetermined distance to guide the exhaust gas from the group of exhaust holes to the outside of the heating chamber, a ceiling wall of the reflecting plate and an exhaust duct wall. A heating cooker which is disposed between the exhaust gas exhaust gas and the exhaust gas purification catalyst, which purifies the exhaust gas from the exhaust gas exhaust gas group, and the exhaust gas exhaust gas catalyst is disposed upstream of the exhaust gas purification catalyst.