JPH062852A - Gas oven - Google Patents

Abstract

PURPOSE:To obtain a gas oven capable of selectively supplying both heat and steam or either of them to a cooking compartment. CONSTITUTION:A gas oven is equipped with a gas burner 12 installed beneath a cooking compartment 10, smoke tubes 13 which lead heat generated by the gas burner 12, a fan 14 surrounded by the smoke tubes 13, a spray nozzle 16 extended to the central part of the fan 14, and a heat exchanger which heats water supplied from the spray nozzle 16. There fore, both heat and steam can be supplied into the cooking compartment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas oven for guiding heat generated by a gas burner to a cooking chamber for heating and cooking.

[0002]

2. Description of the Related Art Heretofore, a gas oven has been proposed in which heat generated by a burner is directly introduced into a cooking chamber for heating and cooking. In addition, there has been one equipped with a steam generator for supplying humidified steam into the cooking chamber of a gas oven.

[0003]

However, in the above-mentioned conventional gas oven, there is a drawback in that the types of food that can be cooked are limited by simply heating.
Further, in the case of being able to be humidified by steam, there is a drawback that a separate steam generator is required and the apparatus as a gas oven becomes large in size.

The object of the present invention was made in view of the above-mentioned drawbacks of the prior art, and it is possible to directly generate steam through a fan in a gas oven without using a separate steam generator. To provide.

[0005]

A gas oven according to the present invention has a gas burner provided in a combustion chamber disposed below a cooking chamber, and heat generated in the gas burner is guided to the chimney through the cooking chamber. A plurality of smoke pipes, a fan surrounded by a part of the smoke pipes and provided in a cooking chamber, a water spray nozzle extending to a central portion of the fan, and water supplied from the water spray nozzle is heated by exhaust heat. It is a gas oven equipped with a heat exchanger and capable of selectively supplying both heat and steam into the cooking chamber. Further, the sprinkling nozzle may be provided with a guide fin at the outlet of the introduction pipe for dropping water in a band shape.

[0006]

According to the gas oven of the present invention, heating and humidification can be selectively performed, and since steam can be directly generated through a fan, the apparatus can be downsized and thermal efficiency can be improved. You can improve.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, 10 is a cooking chamber in a gas oven, a combustion chamber 11 is provided in the lower portion of the cooking chamber 10, and a gas burner 12 is disposed in the combustion chamber 11.

From the back side of the combustion chamber 11, the cooking chamber 1
A plurality of smoke tube groups 13 are arranged so as to penetrate through the back side of the stack 0. The smoke tube group 13 is formed in the cooking chamber 10 such that the central portion is curved left and right, and the upper end portion is connected to the chimney 13a.

A fan 14 is attached to the back wall of the cooking chamber 10 so as to be surrounded by the curved portion of the smoke tube group 13, and a cylindrical water receiving portion 15 is provided at the center of rotation of the fan 14.
Is provided, and the sprinkling nozzle 16 is disposed directly above the water receiving portion 15. The cooking chamber 1 is driven by driving the fan 14.
The air in 0 is sucked in from the center and blows out from the top, bottom, left and right to convection.

As shown in FIG. 2, a cover 17 is arranged at a predetermined interval on the front side of the smoke tube group 13 and the fan 14 thus constructed, and the cover 17 is arranged as shown in FIG. An entire net 17a for protecting the fan 14 is arranged in the central portion thereof, and a mesh plate 18 for preventing foreign matter from being sucked by driving the fan 14 is detachably attached.

A frame 27 having a plurality of guide rails 26 is detachably disposed on both sides of the cooking chamber 10, and a shelf for cooking is slidably mounted on the guide rails 26, for example. . Further, a drain hole 19 is formed at the bottom of the cooking chamber 10.
A heat exchanger 20 is connected to the.

This heat exchanger 20, as shown in FIG.
The water pipe 22 is arranged spirally around the conduit 21 extending from the drain hole 19. Then, the room temperature water guided from the downstream side of the conduit 21 is heated by the exhaust heat from the cooking chamber 10 as it goes to the upstream side, and the heated warm water is guided to the nozzle 16 and the water receiving portion 15
Is vaporized by.

As shown in FIGS. 5 and 6, the sprinkling nozzle 16 has a fin 25 fixed to the outlet of the water guide tube 24 for dropping water in a band shape. The fin 25 has a V-shaped groove 25a and a gutter 25b inclined in the depth direction and a gutter 25c inclined in the front direction are arranged to face each other. Therefore, the water flowing out of the water conduit 24 is
Fall along the width of the strip.

An operation panel 23 is arranged on the left side of the front of the gas oven, and the control mechanism (not shown) controls the combustion time of the gas burner 12, the gas supply amount, the water supply to the water spray nozzle 16, and the like. By this, the cooking item can be appropriately selected.

Next, a method of using the gas oven configured as described above will be described. First, when the gas oven is used without steam, the supply of water to the water spray nozzle 16 is stopped, only the gas burner 12 is ignited, the fan 14 is driven, the heat of the smoke pipe 13 is taken and circulated, and the cooking chamber 10 is heated. .

When steam is also used for cooking, water is supplied to the water spray nozzle 16, steam is generated in the heated water receiving portion 15, and the heat taken away from the smoke tube group 13 is taken into the cooking chamber 10 by the fan 14. Will be introduced to. If you do this,
It can be used as a steamer and oven.
When used as a steamer, the supplied water is heated by the heat exchanger 20, so that steam can be efficiently generated. Moreover, since the exhaust gas is cooled in reverse, it is safe for the cook.

[0017]

As described in detail above, according to the gas oven of the present invention, the gas burner provided in the combustion chamber disposed below the cooking chamber and the heat generated in the gas burner are transferred to the cooking chamber. A plurality of smoke pipes penetrating and leading to a chimney, a fan surrounded by a part of the smoke pipe and provided in the cooking chamber, a water spray nozzle extending to the central portion of the fan, and water supplied from the water spray nozzle. Since it is provided with a heat exchanger for heating the waste heat with exhaust heat so that both heat and steam can be selectively supplied into the cooking chamber, not only gas heating but also steam humidification can be easily performed.

Further, since a separate steam generating device is not required just by spraying water directly to the fan with a spray nozzle, the device can be constructed compactly, and vaporizing efficiency can be improved because direct steam is generated. .

Further, since the combustion chamber and the smoke tube are completely separated from the cooking chamber, the combustion gas of the gas burner does not enter the cooking chamber, and the material to be cooked is contaminated with soot of the combustion gas. Absent.

[Brief description of drawings]

FIG. 1 is a front view showing a gas oven according to an embodiment of the present invention with a door and a cover removed and a part cut away.

FIG. 2 is a front view showing a cooking chamber of the gas oven with a frame on one side removed.

FIG. 3 is a partially cutaway front view showing a cover of a fan used in the gas oven.

FIG. 4 is a partially enlarged explanatory view showing the gas oven with a part thereof cut away.

FIG. 5 is an explanatory view schematically showing a steam generating part of the gas oven.

FIG. 6 is a side view of a main part schematically showing a steam generating part of the gas oven.

[Explanation of symbols]

 10 Cooking Room 11 Combustion Chamber 12 Gas Burner 13 Smoke Tube Group 14 Fan 15 Water Receiver 16 Sprinkling Nozzle 17 Cover 17a Wire Mesh 18 Mesh Plate 19 Drain Drain 20 Heat Exchanger 21 Conduit 22 Water Pipe 23 Operation Panel 24 Water Conduit 25 Fin 26 Guide Rail 27 frames

Claims (2)

[Claims] 1. A gas burner provided in a combustion chamber disposed below a cooking chamber, a plurality of smoke tubes that guide heat generated in the gas burner to a chimney through the cooking chamber, and a part of the smoke tube surrounding the smoke tube. A fan provided inside the cooking chamber, surrounded by the water spray nozzle, and a sprinkler nozzle extending to the center of the fan; and a heat exchanger for heating the water supplied from the sprinkler nozzle with exhaust heat. A gas oven characterized by being able to selectively supply both steam. 2. The gas oven according to claim 1, wherein the water spray nozzle is provided with a guide fin at the outlet of the introduction pipe for dropping water in a band shape.