JPH0214721Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a burner cover for a roaster that is used in a roaster for grilling fish, meat, sweets, etc., and is placed over the burner. Regarding.

[Conventional technology]

As a burner cover for this type of pottery, a burner cover 4b having a vertical cross-sectional shape as shown in FIG. 5, for example, is often used. In such a case, the hot gas from the burner 1b passes upward through the hot gas passage hole 10b, the burner cover 4b becomes red hot, and infrared rays are radiated to the object to be burned. On the other hand, when the liquid drips from the object to be burned above the burner cover 4b, the liquid hits the slope part 5b and flows down while passing over the hot gas passage hole 10b.
That is, the juice is prevented from dripping toward the burner 1b, and stable combustion in the burner 1b is maintained.
Note that 2b is a gas combustion port, and 3b is a gas supply pipe.

[The problem that the idea aims to solve]

However, this conventional burner cover for pottery has a problem in that dripping liquid does not flow properly. If the inclination angle of the slope portion 5b as a whole is made steeper in order to improve the flow, a large amount of hot gas may get trapped inside the burner cover 4b, increasing the load on the burner 1b, or the upper part of the burner cover 4b may There is a problem that thermal efficiency decreases as the distance between the two ends increases.

This invention was made in view of the above points, and its purpose is to
It has a structure that allows a large amount of infrared rays to be applied to the object to be burned, and at the same time prevents dripping liquid from the object from falling directly onto the burner, and also allows the dripping liquid to flow down smoothly. An object of the present invention is to provide a burner cover for a pottery pot.

[Means to solve problems]

In order to achieve the above object, the present invention takes the measures as described in the claims above, and
Its action is as follows.

[Operation] Hot gas from the burner rises through the hot gas passage hole. If juice drips from the object to be baked, the burner cover prevents the juice from dripping directly toward the burner. The juice dripping onto the burner cover flows down through the grooves between the protrusions on the burner cover.

〔Example〕

The drawings showing the embodiments of the present application will be described below. 1 and 2 show a burner 1 and a burner cover 4 in a pottery, and the relationship between them. Except for the burner cover 4, these are constructed in the same manner as well-known pottery vessels.

First, the burner 1 will be explained. 2 is a gas combustion port, and 3 is a gas supply pipe.

Next, the burner cover 4 is placed directly over the burner 1. This burner cover 4 will be explained in more detail with reference to FIG. 3 of the drawings. The burner cover 4 is made of a well-known material with good heat resistance and corrosion resistance (for example, stainless steel), and is formed to have a chevron-shaped cross-section as shown. 5 indicates the slope portion. Reference numeral 6 denotes a fastening piece provided integrally with the slope portion 5 at the lower end of the slope portion 5, and is provided to secure the burner cover 4 to the burner cover holder. Since this fastening piece 6 is for preventing distortion, it is preferable to form it by double bending. Furthermore, this fastening piece 6 is attached to the burner 1.
It is best to place it close to the hot gas from the source so that it can be exposed to a large amount of hot gas. By doing so, the fastening piece 6 becomes hot. Then, even if juice flows down from the slope portion 5 toward the stopper piece 6, it can be instantly splashed away. Next, reference numeral 7 denotes a plurality of protrusions provided on the slope portion 5, each of which faces the flow direction (direction from an upper position to a lower position) on the slope portion 5 as shown in the figure. There is. These protrusions 7 are formed by raising a portion of the slope portion 5, respectively. 8 indicates a groove between adjacent protrusions 7. Reference numeral 10 denotes a hot gas passage hole bored in the side surface 9 of the protrusion 7, and is provided at a position where the lower edge 12 is higher than the bottom surface of the groove 8, as shown in the figure.
In this example, the hot gas passage hole 10 is constructed as shown in FIG. 3 by making a cut in a part of the side surface 9 of the protrusion 7 and pushing the upper edge upward. There is. That is, as is clear from FIG. 3, the upper edge 11 and lower edge 12 of the hot gas passage hole 10 overlap in the vertical direction, and when the hot gas passage hole 10 is viewed from directly above the burner cover 4, It is arranged in a positional relationship so that the lower part cannot be seen through.

In the pottery oven having the above structure, as is well known, the gas blown out from the gas combustion port 2 is combusted, and the hot gas generated by the combustion rises and passes through the hot gas passage hole 10 to the object to be burnt above the burner cover 4. The object to be burned is burned. Further, the hot gas passing through the hot gas passage hole 10 heats the burner cover 4, making it red hot. Infrared rays are radiated from the red-hot burner cover 4, and the object to be burned is also burned by the infrared rays.

When grilling is performed in the manner described above, if juice drips from the object to be baked, the juice is caught by the burner cover 4 and is prevented from dripping directly toward the burner 1. Further, since the hot gas passage hole 10 is formed on the side surface 9 of the protruding strip 7, the juice does not directly drip down toward the burner 1 through the hot gas passage hole 10. As a result, the gas combustion port 2 of the burner 1 is prevented from being blocked by the dripping juice, and the combustion of the gas in the burner 1 is maintained stably.

When the juice is received by the burner cover 4, the juice dripping into the groove 8 smoothly flows downward through the groove. In addition, the juice dripping onto the upper surface of the protruding strip 7 passes through the upper surface or flows from the upper surface into the groove 8.
The water flows smoothly down through the downflow groove 8. The flowing liquid flows down along the stopper piece 6 and does not remain attached to the burner cover 4. When the juice flows down the groove 8 as described above, since the lower edge 12 of the hot gas passage hole 10 is higher than the bottom surface of the groove 8, the juice is prevented from flowing into the hot gas passage hole 10.

Next, in the case of the burner cover 4, since the juice flows down smoothly on the slope portion 5, it is sufficient that the slope portion 5 has a gentle slope. If the inclination of the slope portion 5 is gentle, the object to be burned will be located in a direction close to directly in front of the slope portion 5. As a result, more of the radiant heat emitted from the slope portion 5 of the burner cover 4 can be applied to the object to be burned, and the heating efficiency of the object to be burned can be improved. (The fire has power like a charcoal fire.) If the slope portion 5 has a gentle slope as described above, the upper portion of the burner cover 4 can be brought closer to the burner 1. As a result, the amount of hot gas accumulated inside the burner cover 4 is reduced, the burden of the hot gas on the burner 1 can be reduced, and backfire is also prevented.

In the burner cover 4, most of the hot gas generated by the combustion of gas escapes upwardly through the large number of hot gas passage holes 10. For this reason, the entire burner cover 4 becomes hot. Therefore, even if juice drips there, the juice will not burn in that area, allowing stable pottery work to continue.

In the burner cover 4 described above, the plurality of protrusions 7 provided on the slope portion 5 reinforce the slope portion 5. Therefore, there is no distortion, and the material can be formed with a correspondingly thinner material.
When formed of the above-mentioned thin material, the slope portion 5 becomes red hot more quickly, so that the pottery effect can be made more effective. Moreover, there is a feature that press processing of the burner cover 4 is easy. Further, the fastening piece 6 integrated with the slope portion 5 of the burner cover 4 can be processed at the same time, and warping of the burner cover 4 can also be prevented.

In the burner cover 4 described above, by making the section between the adjacent hot gas passage holes 10 smaller in the slope portion 5, the burner cover 4 becomes hotter faster and becomes more efficient. Furthermore, since the hot gas can pass through the burner cover 4 more easily, the fuel gas can be completely burned even if the burner 1 and the burner cover 4 are brought closer to each other. Therefore, burner cover 4
It is possible to accelerate the temperature rise and emit infrared rays more quickly. Moreover, by getting closer like that,
Since the burner cover 4 is heated to a higher temperature than the conventional one, it is difficult for juice to adhere to it as described above, and there is less oxidation even when used for a long time. Even if it is oxidized, it can emit more radiant heat than conventional products, resulting in a good baked product. In this case, since the burner 1 and the burner cover 4 are closer to each other, there is less fuel gas and the temperature is higher, which is also economically advantageous.

Next, FIG. 4 shows a different embodiment of the burner cover 4a.

The burner cover 4a has a round shape when viewed from directly above, is large enough to cover the upper surface of the burner, and has a vertical cross-section shaped like a high mountain in the center. It should be noted that parts that are considered to have the same or equivalent configuration as those in the previous figure in terms of function are given the same reference numerals as those in the previous figure with an alphanumeric a, and redundant explanations are omitted.

[Effect of idea]

As described above, in the present invention, when grilling, hot gas from the burner 1 passes through the hot gas passage hole 10.
The burner cover 4 becomes red hot by passing through the
A large amount of infrared rays can be applied to the object to be baked, which has the effect of making the object deliciously grilled.

Moreover, even if juice drips from the object to be baked during the above-mentioned grilling process, it is possible to prevent the liquid from falling directly onto the burner 1, which has the effect of stably maintaining the combustion state of the burner 1.

Moreover, if the above juice drips, burner cover 4
Since a plurality of protrusions 7 are arranged side by side in the flow direction on the slope portion 5 of , the dripping juice passes through the grooves 8 between the protrusions and flows down with less resistance. It has the feature of being able to This means that even if the slope of the slope portion 5 is made gentle, the juice can flow down. Therefore, the inclination of the slope portion 5 can be made gentler so that the burner cover 4 can be disposed closer to the burner 1, which has an excellent effect of improving thermal efficiency.

Moreover, even though the juice flows down through the groove 8 as described above, since the hot gas passage hole 10 is provided at a position higher than the bottom surface of the groove 8, the juice flowing through the groove 8 flows through the hot gas passage hole. This has the effect of preventing the fuel from flowing into the burner 10 and maintaining stable combustion in the burner 1.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a partially cutaway perspective view showing the relationship between a burner and a burner cover in a pottery vessel, and FIG. 2 is a longitudinal cross-sectional view showing the relationship between a burner and a burner cover. FIG. 3 is a partially enlarged perspective view of the sloped portion, and FIG. 4 is a perspective view showing a different embodiment of the burner cover. FIG. 5 is a longitudinal sectional end view showing a conventional burner and burner cover. 1...burner, 4...burner cover, 5...
... Slope portion, 7 ... Protrusion, 8 ... Groove, 10 ... Hot gas passage hole, 12 ... Lower edge.

Claims (1)

[Scope of utility model registration request] A burner cover for a pottery pot, which is placed over a burner in a pottery pottery, and which has a mountain-shaped vertical cross section and has a large number of hot gas passage holes drilled in the sloped portion. The slope part is provided with a plurality of protrusions in parallel, each of which is formed by raising a part of the slope part and each facing the flow direction, and the plurality of hot gas passage holes are arranged in parallel. The hot gas passage holes are located below the hot gas passage holes so that the juice flowing down the grooves between the ridges does not flow into the hot gas passage holes. A burner cover for a pottery pot, characterized in that the edge is set at a position higher than the bottom surface of the groove.