JPH0721333B2 - Firing device - Google Patents

Description

TECHNICAL FIELD The present invention mainly relates to a combustor such as an oven, a fish grill or a meat grill.

(Prior art) Conventionally, a gas burner for cooking is faced to a firing chamber, and the smoke burner that burns the smoke generated during firing is smokeless and odorless. 60-
It is known from the publication such as 106004.

(Problems to be solved by the invention) In this case, it is general that the gas burners for cooking and the gas burners for smoke roasting are respectively exposed to the ignition gas burners, but in this case, the ignition devices are exposed to the individual ignition gas burners. The equal structure becomes complicated. Therefore, it is desired to ignite with one common ignition gas burner. On the other hand, when both burners are provided in a space surrounded by a firing chamber or a smoke exhaust passage, the supply of secondary air becomes insufficient and the combustibility deteriorates. Therefore, it is possible to solve this problem by using a surface combustion type gas burner, but when doing so, there is a problem that it becomes difficult to ignite.

In view of the above situation, the present invention uses a surface combustion type gas burner, and an object thereof is to obtain a calciner capable of effectively igniting both burners with one ignition means.

(Means for Solving the Problems) In order to achieve such an object, the present invention is arranged such that a surface combustion gas burner for cooking is exposed to the baking oven and the baking furnace is extended substantially horizontally from the upper rear portion to the rearward inside the baking oven. Compared to the smoke exhaust passage with a narrower vertical width, the surface combustion gas burner for roasting smoke generated during firing is exposed, making it possible to transfer both surface combustion burners and for smoke roasting. It consists of a surface combustion gas burner and an ignition gas burner.

(Operation) In the calciner having the above-mentioned configuration, the ignition burner is exposed to the gas burner for smoke roasting that faces the smoke discharge passage where the vertical width is narrower than in the firing chamber and the fuel gas is less likely to diffuse. Since it is ignited, it is easily ignited, and the cooking gas burner can be easily ignited by transferring the flame from the smoke roasting gas burner to the cooking gas burner.

(Example) An example of carrying out the present invention will be described with reference to an example in the case of a gas stove with a calciner.

In the drawings, 1 is a main body of the baking chamber, 2 is a baking chamber provided in the baking chamber, 3 is an opening / closing door for closing an opening 4 provided in the front of the baking chamber 2, and 5 is a surface combustion type for cooking provided in the baking chamber 2. Gas burner, 6
Is a smoke exhaust passage that extends rearward from the upper rear part of the baking chamber 2 and has a rear end upper surface opened, and 7 is a horizontal portion of the smoke exhaust passage 6 that smokes roasting smoke generated during cooking. The surface burning gas burner 5 for cooking and the surface burning gas burner 7 for smoke roasting are provided so that the fire can be transferred to the surface burning gas burner 7 for smoke roasting. The surface burning gas burner 7 for smoke roasting is ignited by facing the ignition gas burner 8, and then the surface burning gas burner 7 for smoke roasting is transferred and ignited to the surface combustion gas burner 5 for cooking. I did it.

This will be described in detail. In the embodiment shown in FIGS. 1 and 2, a common burner body 9 that extends over the upper part of the baking cabinet 2 and the upper part of the smoke discharge passage 6 is provided, and a large number of burner bodies 9 are provided on the lower surface of the burner body 9. A ceramic plate 11 having a flame outlet 10 is provided to form a surface combustion type (all primary air type) gas burner, and the portion of the ceramic plate 11 facing the upper part of the baking chamber 2 is the surface combustion type gas burner for cooking. 5 and a portion facing the upper surface of the smoke discharge passage 6 is used as a surface combustion type gas burner 7 for smoke roasting. Both surface combustion type gas burners 5 and 7 have continuous combustion surfaces, and both surface combustion type gas burners 5 and 7 are connected. The ignition gas burner 8 is a wall plate on the lower surface at a position facing the surface combustion gas burner 7 for smoke roasting in the smoke discharge passage 6.
The flame from the ignition gas burner 8 reaches the surface combustion gas burner 7 for smoke roasting through the through hole 12 provided in 2a.

In this case, the surface combustion gas burner 7 for smoke roasting in the smoke discharge passage 6 which is narrower than the firing chamber 2 and is easily filled with fuel gas.
First, the surface-combustion gas burner 5 for ignition is ignited first, and then the surface-combustion gas burner 5 for cooking is ignited. Therefore, even if the surface-combustion gas burner is difficult to ignite, good ignition can be achieved, and only one ignition gas burner is required.

As described above, the common ceramic plate 11 is provided on the surface combustion type gas burner 5 for cooking and the surface combustion type gas burner 7 for smoke roasting.
In the above embodiment, the combustion surfaces of both surface-combustion gas burners are continuous. However, a flameless portion is provided at the boundary between the portions forming both surface-combustion gas burners 5, 7. The burners 5 and 7 can also be separated, and in this case, a flame transfer port connecting both surface combustion type gas burners 5 and 7 is provided at the boundary portion, or the flame is formed on the lower surface of both surface combustion type gas burners 5 and 7. A flame may be transferred from the surface combustion type gas burner 7 to the surface combustion type gas burner 5 by providing an induction plate or the like.

The surface combustion type gas burner 5 for cooking is shown in FIGS.
As shown in the figure, it is also possible to provide the lower part of the baking cabinet 2 so that the food in the combustion box 2 can be baked and cooked from its lower surface. In this case, the flame transfer from the surface combustion type gas burner 7 for smoke roasting to the surface combustion type gas burner 5 for cooking is performed by using the burner 13 for flame transfer across both surface combustion type gas burners 5, 7.

The smoke exhaust passage 6 at the portion where the surface combustion type gas burner 7 for roasting smoke is provided has a particularly narrow upper and lower width, so that the roasting of smoke passing through the surface combustion type gas burner 7 portion can be performed more reliably. I made it happen.

Further, the portion where the gas burner 8 for ignition is provided is further provided with two wall plates 2b and 2c which are overlapped with each other on the outer side of the wall plate 2a with a space therebetween, and the two wall plates 2a, 2b and 2c are displaced back and forth. Through hole 12
Is provided to guide the flame to the surface combustion type gas burner 7 through these through holes 12, and the surface combustion type gas burner 7 is provided.
We tried to prevent radiant heat from the outside from leaking to the outside.

In the drawing, 14 is an oxidation catalyst filter attached to the outlet of the smoke exhaust passage 6, 15 is a cover for covering the upper portion of the smoke exhaust passage 6 near the outlet, and 16 is an outlet of the smoke exhaust passage 6 of the cover 15. The hood is provided above the opening 16
Equipped with 17.

(Effects of the Invention) As described above, according to the present invention, for smoke roasting in which the fuel gas sent out from the smoke roasting gas burner is narrower in the vertical width than in the firing chamber and the smoke discharge passage is difficult to diffuse By igniting the gas burner facing the ignition gas burner, the gas burner for smoke roasting can easily be ignited by transfer from the ignition gas burner even if it is a surface combustion type gas burner that is difficult to ignite. By transferring heat from the gas burner to the cooking gas burner, it is easy to transfer the heat to the cooking gas burner, and moreover, it is possible to obtain the one that can ignite both gas burners with one ignition gas burner.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
II-II line enlarged cut-away side view, FIG. 3 is a cut-away side view of essential parts of another embodiment, and FIG. 4 is a cross-sectional view taken along the line IV-IV. 2 ... Sintering chamber 5 ... Surface combustion type gas burner 6 ... Smoke exhaust passage 7 ... Surface combustion type gas burner 8 ... Ignition gas burner

Claims (1)

[Claims] 1. A surface-combustion gas burner for cooking is exposed to the baking chamber, and it is generated at the time of baking in a smoke discharge passage that extends substantially horizontally from the upper rear part of the baking chamber to the rear side and has a narrower vertical width than the inside of the baking chamber. The surface combustion type gas burner for smoke roasting is exposed, and both surface combustion type burners can be transferred, and the ignition gas burner is exposed to the surface combustion type gas burner for smoke roasting. vessel.