KR0154299B1 - Exhaust structure of grill apparatus - Google Patents

Abstract

According to the configuration of the present invention, the exhaust hole 14 receives combustion gas of the flame transfer burners 3 and 4 located at the rear of the grill chamber 2 provided in the table furnace, and at least part of which is exposed to the outside of the grill chamber 2. The pilot exhaust duct 6 for guiding the gas and the draft cover 5 for guiding the combustion gas flowing backward through the through hole 26 for introducing the secondary air into the grill chamber 2 are provided. For example, even if natural ventilation alone does not provide enough internal ventilation, such as a built-in table stove, the combustion gas from the flame transfer burner or the backflow gas in the grill chamber is led to the exhaust hole to smoothly burn the combustion gas from the furnace section. Has the effect of being discharged.

Description

Exhaust Structure of Grill Room

1 is a cross-sectional view showing the structure of a grill chamber to which the present invention is applied.

2 is a cross-sectional view showing the configuration of one embodiment of the present invention.

3 is a right side view showing the positional relationship between the draft cover and the pilot exhaust duct.

4 is a cross-sectional view taken along the line IV-IV.

* Explanation of symbols for main parts of the drawings

1: Built-in table stove 2 Grill grill

3: first flame transfer burner 4: second flame transfer burner

5: Draft Cover 6: Pilot Exhaust Duct

12: top plate 14: exhaust hole

23: infrared burner 24: hwahwa burner

25: exhaust duct 26: through hole

27: space CT: counter top

[Industrial use]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table furnace having a furnace section and a grill chamber, and relates to an exhaust structure of a grill chamber for guiding combustion gas discharged into the furnace section from a burner installed in the grill chamber to an exhaust hole side formed in the upper plate of the table furnace. will be.

[Prior art]

BACKGROUND ART Conventionally, a table furnace in which a burner portion of a furnace portion is provided on an upper plate surface and a grill chamber is incorporated therein is known. In the grill chamber, in addition to the infrared burner installed on the ceiling surface of the grill chamber for firing the stew from the upper surface, a lower burner is installed at the lower left and right sides of the grill chamber to heat food from the lower surface. There is. In the case of installing the fire burner in this way, a flame transfer burner for igniting the flame moving to one of the infrared burner and the fire burner on the ceiling surface, and a flame transfer burner for moving the flame between one fire burner and the other fire burner. Need to install Since these flame moving burners have a very small thermal power, they may be burned by a boiled food that enters the grill chamber through an exhaust port or a sudden pressure change in the grill chamber when an infrared burner or a ignition burner is ignited. In addition, at least a part of it is in a tabletop furnace, but exposed outside the grill chamber so as to stably burn.

In addition, when the lower burner is provided as described above, it is necessary to form a through hole in the side wall of the grill chamber in order to introduce secondary air required for burning the lower burner. In the state where cooking is done with the door of the grill chamber closed, the combustion gas of the infrared burner or the calcining burner is exhausted through an exhaust duct connected to the rear side of the grill chamber, and the inside of the grill chamber is slightly negative due to the draft effect or the like. Therefore, the air in the furnace part flows into the grill chamber as secondary air through the through hole formed in the side wall. However, when the door of the grill chamber is opened in this state, air is rapidly introduced from the door into the grill chamber, so the pressure in the grill chamber is increased, and the combustion gas in the grill chamber flows back into the furnace through the through hole. In addition, the combustion gas of the flame transfer burner also leaks into the furnace section like the combustion gas flowing back through the through hole.

[Problems that the invention tries to solve]

In recent years, the demand for system kitchens has increased, and it has become possible to frame tabletops into system kitchens. When the table stove is assembled into the system kitchen, the table stove is embedded in the hole formed in the counter top, so if the combustion gas leaks from the bottom or the outer surface of the table stove, Since it is unfavorable, the opening for ventilation cannot be formed in the bottom surface or outer surface of a tabletop furnace. In addition, even if an opening is temporarily provided, since the perimeter of the table is surrounded, ventilation is not sufficiently achieved. In this case, when there is not enough ventilation in particular, the combustion gas of the flame moving burner or the combustion gas flowing back through the air stays in the furnace section, and the mechanism is overheated, causing deterioration to accelerate or inhibit the combustion of the burner burner. The problem arises. It is also conceivable to return the combustion gas leaked into the furnace into the exhaust duct connected to the grill chamber, but for this purpose, an opening must be provided in the exhaust duct, in which case there is a possibility that the combustion gas flows back from the opening. It cannot occur and be adopted.

In view of the above problems, the present invention provides a grill structure exhaust structure capable of smoothly discharging the combustion gas of the flame transfer burner or the combustion gas flowing back through the through hole from the furnace section, even when the furnace section is not sufficiently ventilated. The purpose is to provide.

[Means for solving the problem]

In order to achieve the above object, the invention of claim 1 covers an outer surface of a grill chamber installed in a table stove, covering the combustion gas discharged from the burner installed in the grill chamber into the furnace section of the table furnace in an upward direction. It is characterized by providing a combustion gas guide member which prevents the combustion gas from spreading and guides the combustion gas through the exhaust duct connected to the grill chamber to the exhaust hole formed in the upper plate of the table furnace.

According to the invention of claim 2, in the invention of claim 1, the grill chamber is provided with a flame transfer burner located at the rear of the grill chamber and at least partially exposed to the outside of the grill chamber, wherein the combustion gas guide member is It is characterized in that the combustion gas of the flame transfer burner is led to the exhaust hole side.

In the invention under claim 3, in the invention according to claim 1, the right and left side walls of the grill chamber are provided with a through hole for introducing secondary air into the grill chamber, and the combustion gas guide member is grilled through the through hole. It is characterized in that the combustion gas flowing back from the chamber to the furnace section is led to the exhaust hole side.

According to the invention of claim 4, in the invention of claim 1, the grill chamber is provided with a flame transfer burner located at the rear of the grill chamber and at least partially exposed to the outside of the grill chamber, and as the combustion gas guide member. A pilot exhaust duct for guiding the combustion gas of the flame transfer burner to the exhaust hole is provided, and through holes for introducing secondary air into the grill chamber are formed in the left and right walls of the grill chamber. It has a draft cover for guiding the combustion gas flowing back from the grill chamber to the furnace through the through hole to the pilot exhaust duct, and also moves the flame at the position where the combustion gas flowing out of the draft cover joins the combustion gas induced by the pilot exhaust duct. It is characterized by providing a sorting plate which is biased to the rear side from the position of a burner.

[Action]

The combustion gas of the flame transfer burner or the combustion gas flowing back through the through-hole is led to the exhaust hole side along the combustion gas guiding member without passing through the exhaust duct, and is smoothly discharged from the furnace section. In addition, since the combustion gas raises the temperature high, it can be led to the exhaust hole side while sufficiently preventing the diffusion of the combustion gas simply by covering it from the upper side. In addition, when the cover is covered from the upper side, the lower surface of the combustion gas guide member is opened, and when the cooking is performed while the grill chamber door is closed, the introduction of the secondary air through the through hole is made through the lower side of the combustion gas guide member. The introduction of air is not impeded.

EXAMPLE

Referring to FIG. 1, reference numeral 1 denotes a built-in table stove, which is prepared by a suspension bracket 11 located in a window hole W formed on the upper surface of the cooking target plate CT. It is suspended from the top surface of the CT). In this way, the table top 1 is suspended, and then the top plate 12 is placed on the top surface to hide the inside of the mechanism of the tail blown 1. The top plate 12 is formed with a grill chamber 2 sandwiched between the left and right sides of the furnace section, each having a large and small gas burner 13a, 13b that protrudes upward through the upper plate 12. Moreover, the exhaust hole 14 which discharges combustion gas from the grill chamber 2 built in the table furnace 1 is formed in the back part of the upper board 12 relatively long in the left-right direction. 15 is a cover plate covering the exhaust hole 14.

A pull door 21 is formed on the front surface of the grill chamber 2, and a grill pan 22a on which a cooking net 22 on which food is placed is connected to the door 21. Accordingly, when the front of the grill chamber 2 is opened by pulling the door 21, the cooking net 22 is pulled together with the door 21 to put food on the cooking net 22 from the outside of the grill chamber 2. You can drop or remove cooked food. Also. In the grill chamber 2, a flat infrared burner 23 is installed on the ceiling surface, and a tubular lower burner 24 is provided on the lower inner side of both side walls, and the upper surface of the food placed on the cooking net 22 is infrared. It burns with the burner 23, and the lower surface is bent with the calcining burner 24. As shown in FIG. In addition, through each side wall of the grill chamber 2, a through hole 26 for introducing air is formed in the upper portion of the lower burner 24. The combustion gas of the infrared burner 23 and the calcining burner 24 and the smoke generated from the food are drafted through the exhaust duct 25 extending to the rear side of the grill chamber 2 by the draft. Is induced. Then, the inside of the grill chamber 2 becomes a negative pressure, and the said air is mainly used as a combustion secondary air of the burning burner 24. As shown in FIG.

By the way, in the rear side of the grill chamber 2, the fire-fighting first flame-moving burner 3 which extends to one side of the burning burner 24 and the infrared burner 23, and the burning burner 24 on either side. The fire-fighting second flame transfer burner 4 is provided. The flame transfer burners 3 and 4 have their ends inserted into the grill chamber 2 and the middle part thereof is exposed to the grill chamber outer space 27 located below the exhaust duct 25. An ignition plug (not shown) or a thermocouple for ignition confirmation is attached to the first flame transfer burner (3). When the ignition operation is performed on the ignition button (not shown), the ignition plug is first ignited on the first flame transfer burner (3). A continuous flame is formed over the entire area of the front edge of the first flame transfer burner 3 and is ignited in both the infrared burner 23 and the one burnout burner 24. Following the ignition, a flame is ignited by moving from the at least one of the first flame transfer burner 3 and one calcination burner 24 to the second flame transfer burner 4, and in front of the second flame transfer burner 3; A continuous flame is formed over the entire edge area and ignited on the other calcination burner 24. In addition, when either one of the infrared burner 23 and the calcining burner 24 is burning, the flames are caused by the two flame moving burners 3 and 4 even when the burners are reduced to the state in which both the burners 23 and 24 burn together. Moving ignition occurs.

According to the above configuration, since a part of the combustion gas of both flame transfer burners 3 and 4 does not enter the grill chamber 2, it is not guided to the exhaust hole 14 through the exhaust duct 25, and the space 27 Stay inside). In particular, in the case of the built-in table furnace 1 as in the present embodiment, combustion gas is likely to remain in the space 27 because the inside of the furnace is less likely to be naturally ventilated. However, when the combustion gas stays in the space 27 in this manner, the combustion of the two flame transfer burners 3 and 4 becomes unstable, or it is difficult to re-ignite the two flame transfer burners 3 and 4 after ignition. On the other hand, while the door 21 is closed and cooking, the inside of the grill chamber 2 becomes negative pressure by the draft and air is introduced into the grill chamber 2 through the through hole 26, but the door 21 is being cooked. When the door is opened, the front surface of the grill chamber 2 is opened so that air flows into the grill chamber 2 from the front at once. Then, the inside of the grill chamber 2 becomes a positive pressure, and the combustion gas in the grill chamber 2 flows back from the grill chamber 2 to the furnace part through the through hole 26. The reversed combustion gas flows into the table furnace 1, which radiates the fire flowing out of the gap between the gas burners 13a and 13b and the upper plate to destabilize combustion, and also stays in the furnace part to burn the gas burner ( It acts as combustion air of 13a, 13b, making it hard to ignite, or overheats the inside of the tabletop furnace 1.

In order to solve such a problem, in the present embodiment, as shown in FIG. 2, the draft cover 5 and the pilot exhaust duct 6, which are the combustion gas guide members, are disposed on the left and right side walls of the grill chamber 2, respectively. Attached. In addition, in FIG. 2, the sleeve-shaped member which forms the inner peripheral surface of the grill chamber 2 is abbreviate | omitted in order to represent the through-hole 26 by a solid line.

The draft cover 5 and the pilot exhaust duct 6 attached to the outer wall on the right side of the grill chamber 2 will be described with reference to FIGS. 3 and 4. First, the draft cover 5 includes a cover portion 51 of the lower half portion facing the through hole 26 with a predetermined distance between the outer surface of the grill chamber 2, the outer surface and the cover of the grill chamber 2. It consists of the intermediate | middle cover part 50 which covers the space | gap with the upper part 51 from the upper side, and the holding part 52 of the upper half part which contact | connects the outer surface of the grill chamber 2, The upper side of the said holding part 52 The rib 53 is bent at the edge and folded outward. Further, by bending the front end of the cover portion 51 inwardly to form the lid 54, it is possible to prevent the combustion gas flowing back through the through hole 26 from falling forward of the cover portion 51. have. In addition, the rear end portion of the cover portion 51 is bent inward to form a lid 55. The upper portion of the lid 55 is cut off to form an opening 56. Therefore, the combustion gas flowing back through the through hole 26 is blocked by the rain portion 50 and the cover portion 55 and is led to the rear side without being diffused into the table furnace 1 and flows out from the opening portion 56 to the rear side. In addition, since the space formed by the outer surface of the grill chamber 2 and the cover portion 51 is open to the lower side, when the door 21 is cooked with the door 21 closed, it may interfere with the inflow of the secondary air through the through hole 26. There is no

Meanwhile, the pilot exhaust duct 6 attached to the rear side of the draft cover 5 is divided into two flame moving burners 3 and 4 along the ceiling surface of the space 27, that is, the bottom surface of the exhaust duct 25. The duct part 61 which receives the combustion gas of this is protruded outward and is formed. At the upper edge of the duct portion 61, a ceiling portion 62 inclined to rise to the rear side is bent inward. Therefore, the combustion gas flowing out of the space 27 along the bottom surface of the exhaust duct 25 is collected so as not to be diffused by the duct portion 61, and ascends in the inclined direction along the ceiling 62. It is guided to the side and is discharged to the outside through the exhaust hole 14 to the table. However, when the combustion gas coming out of the opening 56 of the draft cover 5 flows directly into the duct part 61, the combustion gas flowing out of the opening 56 enters the space 27 and enters the space 27. Since turbulence is generated in the internal combustion, the flow of the combustion gas of both flame transfer burners 3 and 4 may be disturbed and stayed, resulting in unstable combustion. Thus, a bottom plate 63, which is a sorting plate inclined to be bent to the rear side by bending a portion of the lower edge of the duct portion 61, was formed. By forming the bottom plate 63, the combustion gas flowing out from the opening 56 is led to the rear side while being inclined along the lower side of the bottom plate 63, and is applied to both flame transfer burners 3 and 4. Combustion gas from the space 27 flowing along the ceiling 62 after the bottom plate 63 rises to the inside of the duct portion 61 from the cut-out portion 65 which is cut midway after being led to a position which does not affect. And discharged outward from the exhaust hole 14 to the table cone. In addition, since the bottom plate 63 protrudes outwardly larger than the position of the opening 56, there is no fear that the combustion gas flowing out of the opening 56 may diffuse out of the bottom plate 63 into the furnace part. In addition, the lid 64 is formed by bending the front end portion of the duct portion 61 so that the combustion gas flowing inside the duct portion 61 does not escape forward. However, when a wall plate along the flow direction of the combustion gas is provided at the base of the bottom plate 63, the combustion gas can be prevented from deviating more from the bottom plate 63, and the extent to which the bottom plate 63 is protruded can be reduced. Can be. In addition, when the opening part 56 of the draft cover 5 is located in the rear side rather than the installation position of both flame movement burners 3 and 4, it is not necessary to provide the bottom plate 63 which is a splitter plate.

However, in the above embodiment, a relatively large exhaust hole 14 is formed, and the combustion gas from the exhaust duct 25 and the combustion gas from the pilot exhaust duct 6 are outside the table furnace through one exhaust hole 14. Although the exhaust holes are formed in the upper plate 12, the exhaust holes for discharging the combustion gas from the exhaust duct 25 are formed in the upper plate 12, and the combustion from the draft cover 5 or the pilot exhaust duct 6 is carried out. The gas may be led to this other exhaust hole side.

In addition, in the above embodiment, the built-in table stove has been described, but the present invention can be applied to a table stove naturally ventilated by an opening formed in the bottom plate without being woven into the system kitchen.

By the way, in the above embodiment, both of the flame transfer burners 3 and 4 are in a fire-fighting manner, but only the first flame transfer burner 3 is in a fire-fighting manner, and the second flame transfer burner 4 is a flame. It may be a ignition type that is ignited only when moving ignition, or the second flame transfer burner 4 is formed into a groove-hole shaped with a hole downward, and the other ignition is burned while burning the gas ejected from the ignition burner. It may be configured to lead the burner to ignite the flame.

As described above, according to the present invention, even when natural ventilation alone is not sufficient, such as a built-in tabletop furnace, the combustion gas flowing back from the combustion chamber of the flame transfer burner or the grill chamber, for example. Can be guided to the exhaust hole to smoothly discharge the combustion gas from the furnace section.

Claims (4)

The outer surface of the grill chamber installed in the table furnace covers the combustion gas discharged into the table furnace from the burner installed in the grill chamber in the upward direction to prevent the combustion gas from diffusing into the furnace section and to the top plate of the table furnace. An exhaust structure of the grill chamber, wherein a combustion gas guide member for inducing combustion gas is provided to the formed exhaust hole side without passing through an exhaust duct connected to the grill chamber. The grill chamber of claim 1, wherein the grill chamber includes a flame moving burner positioned at a rear portion of the grill chamber and at least partially exposed to the outside of the grill chamber, and the combustion gas guide member moves the combustion gas of the flame moving burner toward the exhaust hole. An exhaust structure of the grill chamber, characterized in that the induction. According to claim 1, The left and right side walls of the grill chamber is formed with a through hole for introducing the secondary air into the grill chamber, the combustion gas guide member exhausts the combustion gas flowing back from the grill chamber to the furnace through the through hole An exhaust structure of a grill chamber, wherein the grill chamber is guided to the hole side. The grill chamber of claim 1, wherein the grill chamber includes a flame moving burner positioned at a rear portion of the grill chamber and at least partially exposed to the outside of the grill chamber, and the combustion gas of the flame moving burner serves as the combustion gas guide member toward the exhaust hole. In addition to the pilot exhaust duct to guide, the left and right side walls of the grill chamber is formed with a through hole for introducing secondary air into the grill chamber, the combustion gas guide member through the through hole through the back flow from the grill chamber to the furnace part combustion It has a draft cover for guiding the gas to the pilot exhaust duct, and also has a splitter plate which is rearward from the position of the flame transfer burner at the position where the combustion gas flowing out of the draft cover merges with the combustion gas induced by the pilot exhaust duct. An exhaust structure of the grill chamber, which is provided.