JP2020134119A - Gas roasting machine - Google Patents

Abstract

To provide a roasting machine has high conductive heat transfer of a metal and high infrared radiation efficiency using radiation energy that combines convective electric heat and radiation heat transfer radiated from a radiator.SOLUTION: In a gas roasting machine in which a burner is installed in a housing outside a hanging line at the front and rear ends of a clear aperture formed at the upper part of the housing, an infrared radiator can be freely installed on the front surface of the burner between the burner and the clear aperture.SELECTED DRAWING: Figure 1

Description

The present invention relates to a gas roasting machine used for skewering yakitori and the like, and cooking meat, fish and the like.

It is common practice to use infrared and far infrared gas burners in gas potters. This is because infrared rays do not warm the surrounding air more than the radiator and irradiate the pottery directly. For example, in Jitsukaisho 63-156041 (Patent Document 1), a gas potter in which far-infrared radiation ceramic plates that radiate far infrared rays by heating are arranged below the burner combustion surface at intervals is proposed. Has been done.

It is also described that the far-infrared ceramic plate has through holes. However, even if this far-infrared ceramic plate has the effect of radiant heat due to the radiation of far-infrared rays, it receives the flame directly from the burning surface of the burner and is placed in the path of the flame, so the heating energy is applied to the baked goods. Since it does not reach directly and far infrared rays are blocked, the effect of far infrared rays is reduced, and heat is transferred only by radiant heat, which does not reach the heating energy by direct heat. Moreover, even if there is a part that passes through the through hole, a decrease in thermal energy is unavoidable.

In addition, the enamel layer made of metal oxides containing carbon, silicon carbide, manganese, titanium, croix, zirconiwi, etc., which is used as a far-infrared ceramic plate, is expensive and has defects that are easily damaged, which causes a problem in durability. is there. As described above, there is a difficulty in using a far-infrared radiator, and near-infrared rays and the like are easily used in a pottery.

Further, in Japanese Patent Application Laid-Open No. 63-202881 (Patent Document 2), a broom layer is provided on a heat generating plate to radiate far infrared rays, and in a baking machine installed on the broom layer, cooking on a grill is performed. The vessel is directly heated by the heating plate, but there is a drawback that the roasting juice, dripping, etc. of the cooking material falls on the heating plate, and the radiant layer is easily damaged and the heating efficiency is easily lowered.

In Japanese Patent Application Laid-Open No. 59-67911 (Patent Document 3), in a gas roasting machine, an upper center is opened, a heating chamber provided with a burner is provided inside the housing, and the heating chamber is installed in the heating chamber. It has been proposed that the cooked food placed on the table is heated red by the burning flame of the burner on the wire mesh placed above the inside of the heating chamber, and the cooked food is baked by radiating infrared rays from the wire mesh in the previous term.

In this configuration, the combustion flame of the burner is made to collide with the heating chamber, the side wall and the sloping wall of the ceiling are heated, and the infrared rays radiated from the side wall and the ceiling inclined wall are radiated to the cooked food to cook. For this reason, the combustion flame of the burner is indirectly used for pottery, and there is a point that it is difficult to raise the heating temperature as compared with direct heating. Therefore, there is a problem in radiating ability from the viewpoint that infrared rays are radiated as the heating temperature is higher.

Further, an infrared radiant heater that utilizes the radiant heat of infrared rays has been proposed. For example, in Japanese Patent Application Laid-Open No. 2008-190856 (Patent Document 4), heat generated from a rotary burner is used to heat a front radiant plate through a chamber, and infrared rays are emitted from the radiant plate through a plurality of holes provided therein. A radiating configuration has been proposed.
As a result, even if infrared rays are radiated uniformly, the heat is blocked by the radiation plate, the infrared rays emitted from the holes are suppressed, and the rise in radiant heat is also suppressed.
In addition, since a heating chamber is used, the capacity for accommodating pottery is limited, and the amount of cooked food is limited.

Jikkai Sho 63-150641 Japanese Unexamined Patent Publication No. 63-202881 Japanese Unexamined Patent Publication No. 59-67911 Japanese Unexamined Patent Publication No. 2008-190856

In such a gas roasting machine, the burner, which is the source of the combustion flame, directly faces the cooking material, and the cooking material is cooked and covered by the combustion temperature generated when the flame reaches the cooking material in a straight line. It is important that the burner does not get soup, dripping, etc. from the cooking ingredients.
In addition, it is necessary to improve the efficiency of heating the radiator, which is an infrared source, by the combustion flame, and to increase the infrared generation efficiency by directly and increasing the temperature.

The present invention solves the above-mentioned conventional problems, and in an extremely simple configuration, the combustion flame of the burner is directly applied to the infrared radiator to heat it, and the temperature is further raised by timely retention and passage to radiate sufficient infrared rays to be cooked. The purpose is to radiate the material.
In addition, radiation that combines conductive heat transfer of metal, convective electric heat, and radiant heat radiated from the radiator using radiant energy that combines radiant heat transfer from the radiator. The purpose is to provide a pottery with high infrared radiation efficiency using energy.
Another object of the present invention is to use a heat-resistant coil as an infrared radiator, which has extremely high heating efficiency and good infrared generation efficiency.

In order to achieve the above object, the present invention has, as a first means, a burner in a gas burner in which a burner is installed in a housing outside the hanging line at the front and rear ends of an opening formed in the upper part of the housing. We propose a gas burner characterized in that an infrared radiator can be freely installed on the front surface and the burner and the infrared radiator are installed facing the opening.

Further, as a second means, we propose a gas pottery characterized in that the infrared radiator is a heat-resistant coil.

Further, as a third means, a large number of pores are provided in the front plate of the burner, a cover surrounding the front plate is installed, and an air outlet is provided in the front plate of the cover and an air inlet is provided in the side plate. We propose a gas pottery.

Further, as a fourth means, a gas pottery machine characterized in that the heat-resistant coil can be freely installed on a mount provided on the cover or the base plate is proposed.

According to the first invention, the heating efficiency to the radiator, which is the source of infrared rays heated by the burner, is high, and a large amount of infrared rays reach the opening port, and the high-pitched sound is radiated directly to the cooking material. Is extremely good, the cooking time can be shortened, and the desired cooking can be achieved freely. In addition, the structure as a pottery can be made extremely simple, it is easy to manufacture, and it can be provided at a low price.

According to the second invention, by using the heat-resistant coil as the infrared radiator, the flame heat from the burner directly heats the heat-resistant coil and also hits the heat-resistant coil in the heat-resistant coil and bounces off the heat-resistant coil. There is also a part that stays inside, which accelerates the heating of the heat-resistant coil. In addition, the radiation efficiency of infrared rays can be maximized by the heat of the flame. Further, infrared rays generated by these flame heats are radiated from the gaps between the heat-resistant coils toward the opening, and reach the cooking material placed on the opening.

According to the third invention, by providing the cover covering the front surface of the burner, the air is smoothly supplied to the burner and the fire from the burner is supplied to the heat-resistant coil, and the infrared radiation efficiency is expanded. Can be done.

According to the fourth invention, the heat-resistant coil, which is an infrared source, can be installed freely, and a gas potter can be easily manufactured.

An explanatory view of an open lid slope according to an embodiment of the present invention. Same as above Central vertical section explanatory view Same as above. Explanatory view of the disassembled slope

Hereinafter, the present invention will be described in detail with reference to one example shown in the figure.
The pottery is formed in a rectangular box shape in which an opening 2 is formed in the top plate 11 of the housing 1. A mounting table 3 corresponding to the cooking material is selected and freely placed in the opening 2. For example, a frame type on which the top and bottom of grilled skewers such as meat and fish are placed, a heating plate on which cooking materials are placed, and the like can be selected. Air inflow holes 12, 12, ... Are provided in the rear wall 111 of the housing 1. Burners 4 are provided at corresponding positions of the air inflow holes 12, 12 ...

The burner 4 has a rectangular cross section and is provided with a gas inlet 41 and an ignition device (not shown) at one end, and pores 43, 43, ... As a large number of outlets are arranged on the front plate 42, or It is pierced at random. The burner 4 is provided with a cover 5 for introducing secondary air.

The cover 5 is provided with air inlets 52, 52, ... To send secondary air to the front plate 42 of the burner 4 on the side plates 51, 51, and an outlet 54 is opened in the front plate 53. is there. Standing frames 541, 541, ... Are provided at appropriate intervals at the outlet 54. The burner 4 and the cover 5 are placed or installed on the bent portion 141 of the base plate 14 provided on the bottom plate 13 or the rear wall 111 or the front wall 112 of the housing 1, and the pores 43 provided in the burner 4 are provided. , 43 ..., The air outlets 54, 54 ... Provided on the cover 5 are directed to the opening 2, and the air inlet 52 of the cover 5 corresponds to the air inflow holes 12, 12 ... ..

One end of the cover 5 is bent to install a stand 6 facing the air outlet 54 so that the heat-resistant coil 8 can be installed freely. The stand 6 can also be installed on the base plate 14. The heat-resistant coil 8 is a spiral coil formed of a wire rod having a diameter of an appropriate thickness, for example, about 2 to 5 mm, which can be easily coiled, and the wire rod and the interval can be appropriately selected. As the wire rod, a heat-resistant material such as Syral and Nicolsylal at 1100 ° C., a high-chromium cast iron having a heat resistance of 1000 ° C. or higher, and other ordinary coil materials having heat resistance can be selected and used.

The heat-resistant coil 8 emits infrared rays of 2 to 4 mm by heating as an infrared radiator, has good infrared conversion efficiency of energy, and is characterized by infrared rays directly and continuously irradiating the cooking material with infrared rays. Therefore, it is possible to cook with good heating efficiency.
A cooking table 3 is provided between the rear wall 111 of the housing 1 and the top plates 11 and 11 overhanging the upper end of the front wall 112 so as to correspond to the opening 2 provided in the top plate 11.

Further, a partition plate 7 for controlling the inflow air and controlling the flame from the burners 4 and 4 between the air inflow holes 12 and 12 provided in the rear wall 111 and the front wall 112 and the burners 4 and 4 installed corresponding thereto. , 7 are installed on the rear wall 111 and the front wall 112. The partition plates 7 and 7 have their tips 71 facing the air inflow holes 12 and 12 of the rear wall 111 and the front wall 112 to introduce air inflow into the air inlets 52 and 52 of the burner 4 and at the upper portion 72. The flame emitted from the burner 4 is directed toward the opening 2.
Further, the front plate 42 having the pores 43, 43 ... Of the burner 4 is installed facing the opening 2. Further, it is natural that the front plate 53 of the cover 5, the outlet 54, and the coil 8 are installed in the same direction.
Reference numeral 10 denotes a water tray, which is installed on the bottom plate 13 so as to be freely accessible from the front wall 112.

Next, the operation will be described.
First, a cooking material, for example, a skewered material such as chicken or green onion stabbed on a skewer is installed on a mounting table 3 placed in the opening 2 of the top plate 11, and the burner 4 is ignited by an ignition device. The gas to which the primary air is sent together in the burner 4 is burned and a flame is emitted from the pores 43, 43 ... The flame passes through the cover 5 and is radiated from the discharge port 5. By this radiation, air is attracted from the air inlet 52 and secondary air is supplied in the directions of pores 43, 43 ... Therefore, the ejected gas is completely burned to become a high-pitched flame and is ejected and radiated from the outlet 54 of the cover 5. At the same time, the air flowing in from the air inflow holes 12, 12, ... Is blocked by the partition plate 7 above, and most of the air is sucked into the cover 5 in the directions of the air inlets 52 and 52 of the cover 5.

The flame radiated from the air outlet 54 hits the heat-resistant coil 8 placed on the front surface. At this time, in fact, it directly hits the wire rod 81 of the heat-resistant coil 8 and heats it. At the same time, there is a portion that hits the wire rod 81 of the heat-resistant coil 8 and is fastened in the heat-resistant coil 8.
Both the portion passing through the gap 82 and the portion staying in the gap 82 can be heated and contacted between the wire rods 81 and 81 to benefit infrared radiation.

The flame weight-heated in this way concentrates and heats the heat-resistant coil 8 to radiate infrared rays, and also intensively radiates radiant energy toward the directional opening 2.
As a result, infrared rays are intensively radiated to the yakitori, meat, and fish of the cooking material placed in the opening 2, and the cooking can be efficiently performed in a short time.

A heat-resistant coil is used as the infrared radiator, and by installing it facing the burner, the burner flame heat is passed through the heat-resistant coil, and at that time, radiant heat transfer that radiates radiant energy according to the temperature with electromagnetic waves. And the high rate of infrared radiation is obtained by the radiant energy that combines the heat transfer only in the coil. As a result, it is possible to shorten and speed up cooking by high temperature and high infrared radiation as a potter.

1 Housing 2 Opening 3 Mounting stand 4 Burner 5 Cover 6 Standing stand 7 Partition plate 8 Heat-resistant coil 10 Water pan

Claims (4)

In a gas burner in which a burner is installed in the housing outside the hanging lines at the front and rear ends of the opening formed in the upper part of the housing, an infrared radiator is installed in front of the burner, and the burner and the infrared radiator are installed. A gas burner characterized by facing the opening. The gas ware according to claim 1, wherein the infrared radiator is a heat-resistant coil. Claim 1 or 2 is characterized in that a large number of pores are provided in the front plate of the burner, a cover surrounding the front plate is provided, and an air outlet is provided in the front plate of the cover and an air inlet is provided in the side plate. The gas pottery described in. The gas pottery according to any one of claims 1 to 3, wherein a heat-resistant coil can be freely installed on a mount provided on the cover or a base plate.

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