JPH0583809B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a gas burner used in a grill burner such as an oven grill, which is a household gas appliance.

The structure of the conventional example and its problems The conventional pipe burner 1 having rows of flame holes is used in order to facilitate the transfer of flame during ignition, and in the case of a double-sided grill or the like having two or more gas burners. In order to prevent flame instability caused by convection caused by the combustion air of the lower burner of the upper burner during lower burner combustion, and to prevent the flame from blowing out due to agitation, the main flame hole 2 is
In order to further create a continuous gas atmosphere near the auxiliary flame holes and to make it difficult for the convection to come into contact with the auxiliary flame holes, the flame holes shown in Fig. 1 are arranged. As shown, a flame holding plate 4 was provided below the auxiliary flame hole 3 to take the above measures. However, when two burners, an oven burner and a grill burner, are installed, such as in an oven grill, and the burners are to be burned at the same time, the flame stabilizing plate 4 of the above-mentioned conventional example
When the pipe burner 1 equipped with a grill is used as a grill burner, the inside of the heating chamber 5 is more tightly sealed due to the oven function, so the pipe burner 1 for grilling is used as a grill burner because the fuel air of the oven burner is extremely turbulent. Fanned by strong convection, the flames became unstable and blown out. For this reason, in the conventional example, it has been impossible to use the pipe burner 1 as a grill burner for an oven grill or the like.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, and is used as a grill burner in a highly airtight chamber such as an oven grill, so that the flame fluctuates and blows out due to the convection of the combustion air of the oven burner. The purpose of the present invention is to make it possible to use a pipe burner that can obtain stable combustion without any problems.

Structure of the Invention In order to achieve the above object, the gas burner of the present invention is a pipe burner having two rows of main flame holes and two rows of auxiliary flame holes below the main flame holes symmetrically in the axial direction of the pipe. A flame holding plate is provided at the bottom of the pipe to cover the entire auxiliary flame hole while maintaining a gap between the holes, and the flame hole is smaller in diameter than the main flame hole, which is bored in the upper part of both ends of the burner flame hole radially with respect to the pipe axis. In addition to the effect of arranging multiple rows of small flame holes to form a short flame that is less susceptible to the effects of convection caused by combustion of other burners and to obtain stable combustion that does not cause blowouts, the small flame holes are arranged symmetrically. It also has the effect of transferring fire from the row of flame holes.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In Fig. 3, 6 is a gas burner used as a grill burner, and 7 is an oven grill heating chamber 5.
It is installed at the top of the interior wall. 8 is a radiant and is heated to red by grill burner 6,
In this embodiment, a lath net is used and is fixed to a fixing plate 9. 10 is the oven burner, 1
1 is a partition plate that partitions the oven combustion chamber and the inside of the oven, and 12 is an exhaust port.

As shown in FIGS. 4 and 5, the gas burner 6 used as a grill burner has two main flame holes 2 and two auxiliary flame holes 3 arranged in a row symmetrically with respect to the pipe 1.
They are arranged in rows, and the flame holding plates 4 are attached so as to cover the auxiliary flame holes 3 while maintaining a gap with the auxiliary flame holes 3. Furthermore, small flame holes 13 are arranged in a radial manner with respect to the axis of the pipe at the upper portions of both ends of the flame hole portion.

Hereinafter, the effects of the above configuration will be explained. When burning the oven burner 10 and simultaneously burning the grill burner 6, the combustion air generated by the oven burner 10 causes convection in the heating chamber 5 of the oven, as shown by the arrow in FIG. However, it becomes a very turbulent flow and contacts the flame hole of the grill burner 6. in this case,
Even if the tongue portion 4 is provided under the auxiliary flame hole 3 as in the conventional example, the above-mentioned convection will blow out the main flame hole 2 and the auxiliary flame hole 3. Therefore, by providing a flame holding plate 4 like the gas burner 5, the convection is prevented from coming into direct contact with the auxiliary flame hole 3, and at the same time, the combustion in the auxiliary flame hole 3 is stabilized by creating a continuous gas atmosphere. However, in order to prevent both ends of the flame hole from being blown out at the start of combustion due to stronger convection, small flame holes 13 are provided at both ends of the flame hole as shown in Figures 4 and 5. By arranging the small flame hole 13, the flame in the small flame hole 13 is short and difficult to be affected by convection, and stable combustion continues, thereby encouraging re-ignition of the flame hole once blown out and leading to stable combustion quickly.

In this way, according to this embodiment, the convection of combustion air generated by other burners is prevented from coming into direct contact with the flame hole of the burner, and the effect of creating a continuous gas atmosphere prevents convection. In addition to the effect of preventing the flame from blowing out, it also has the effect of ensuring that the flame transfers. Furthermore, the small flame holes 1 at both ends of the flame hole
The flame of No. 3 is short and difficult to be affected by convection, and the effect of continuing stable combustion prevents blow-out when combustion starts at both ends of the flame hole, and has the effect of quickly achieving stable combustion in the entire flame hole. The small flame holes 13 also have the role of transferring fire to the row of flame holes arranged on the opposite side.

Although the small flame holes 13 are arranged in two rows in a staggered manner in this embodiment, the arrangement method, hole diameter, and pitch may vary depending on the gas consumption of the grill burner 6, the gas consumption of the oven burner 10, the convection state inside the refrigerator, etc. It is determined accordingly.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) It is now possible to use a pipe burner inside a highly airtight oven grill.

(2) Due to the above effects, costs can be reduced compared to wire mesh type all primary air burners.

(3) The row of small flame holes and the flame-holding plate prevent the flame from blowing out or fluctuating due to convection caused by combustion exhaust from other burners.

(4) The action of the row of small flame holes quickly leads the flames at both ends of the flame holes to stable combustion when combustion starts up under the influence of convection from combustion exhaust from other burners.

(5) The action of the rows of small flame holes ensures that the flames spread through the symmetrically arranged rows of flame holes.

(6) The flame holding plate ensures that the flame transfers through the row of flame holes.

[Brief explanation of drawings]

Figure 1 is a perspective view of a conventional pipe burner, and Figure 2 is a perspective view of a conventional pipe burner.
3 is a sectional view of the inside of an oven grill according to an embodiment of the present invention, FIG. 4 is a perspective view of the gas burner, and FIG. 5 is a sectional view thereof. 1...Pipe burner, 2...Main flame hole, 3...Auxiliary flame hole, 4...Flame holding plate, 6...Grill burner, 7
...Inner wall of oven grill, 8...Radiator, 9...
... fixed plate, 10 ... oven burner, 11 ... partition plate, 12 ... exhaust port, 13 ... small flame hole.

Claims (1)

[Claims] 1. In a heating chamber equipped with gas burners at the lower part and the upper part, the heating chamber is provided at the upper part and has two rows of main flame holes in the axial direction of the pipe, and two rows of auxiliary flame holes below the main flame holes, and the auxiliary flame A flame holding plate that covers the entire auxiliary flame hole while maintaining a gap in the hole is provided at the bottom of the pipe,
A gas burner having a structure in which a plurality of rows of small flame holes having a diameter smaller than the main flame hole are bored radially with respect to the pipe axis at the upper part of both ends of the burner flame hole.