Smokeless roasting machine

Abstract

The invention relates to a smokeless roasting machine. A slit faces a central side and is upward, and a waste gas suction channel is straight-line in the vertical direction, so the impact degree of waste gas on a separating annular wall part is low; the inner peripheral part of a top ring is a lower inclined position facing the central side; the upper end part of an inner box is gradually expanded upwards; a conical surface with a reduced lower side is formed on the middle part of a circumferential wall part in the separating annular wall part in a mode of corresponding to the expanding shape of the inner box; the internal diameter of a part which is closer to the lower side than the conical surface is smaller than that of the upper side; the internal diameter of the top ring is smaller than the diameter of an upper opening of the inner box; the upper end part of the inner box is closer to the lower side than the inner peripheral part of the top ring; a waste gas suction part is a waste gas suction slit formed between the inner peripheral part of the top ring and the upper end part of the inner box; the waste gas suction slit is positioned on the central side and is downward; flow facing an inclined upper side is deflected into downward flow immediately after the water gas is sucked; and the waste gas suction channel behind the waste gas suction slit has a curve shape, so that a large amount of water gas can impact a crown part, the separating annular wall part and the inner box.

Description

technical field [0001] The present invention relates to a smokeless barbecue machine equipped with an exhaust gas cooling structure. The exhaust gas cooling structure introduces external air to lower the temperature of the exhaust gas in a high temperature state to prevent internal overheating. The efficiency of removing oily substances, etc. contained in the exhaust gas. Background technique [0002] Conventionally, in smokeless grills for preventing overheating of inner and outer boxes, etc., an exhaust gas cooling structure for smokeless grills has been developed. In this exhaust gas cooling structure, the inner box is arranged inside the outer box, and the outer box is equipped with It is provided under the table and has an upper opening, and the crown member is placed above the gap formed between the inner peripheral surface of the opening of the table and the upper part of the inner box. The partition wall divides the upper part of the suction space formed between the...

AI Technical Summary

Problems solved by technology

[0009] However, in the invention described in the above-mentioned Patent Document 2, in order to stabilize the laminar flow of the outside air, the partition wall is only a peripheral wall, and the inner and outer wall surfaces are vertical, and the outer wall surface of the inner box and the carrying ring or the outer box are opposed to each other. The inner wall is also vertical, so the divided inner part and outer part of the upper part of the suction space form a straight channel in the up and down direction, and the exhaust gas suction hole is formed on the vertical inner peripheral annular wall part, so , the suction direction of the exhaust gas becomes approximately horizontal. As a result, after the sucked exhaust gas hits the upper part of the partition ring-shaped wall, since the lower part is flat and there is no impact part, the oil and other substances contained in it The amount of adhesion is small, and it is likely to leave a large amount of grease and other substances contained in the exhaust gas leading to the downstream side of the suction space. Moreover, the adhesion surface of the adhesion of the grease and other substances contained in the top ring is located in the inner peripheral ring In the narrow space between the wall and the partition ring-shaped wall, it is not easy to clean, and it cannot be cleaned completely, and it takes a lot of time

[0010] In addition, in the invention described in the above-mentioned Patent Document 3, there is a problem that must be solved as follows: the slit is located on the center side and faces upward, so even if the slit is applied to the invention described in the above-mentioned Patent Document 2, the sucked exhaust gas is It faces obliquely downward, and only slightly bends after suction, so the impact of the sucked exhaust gas on the partition ring-shaped wall is very light, and the adhesion of the oil and other substances contained in it naturally becomes smaller. few

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