JPS646734B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention, Field of Industrial Application) The present invention relates to an oven with a steam injection device.

(Prior art and its problems) Ovens that bake hard bread such as French bread are
It is equipped with a steam injection device to spray steam onto the dough.

The structure of an oven equipped with this steam injection device will be explained with reference to FIGS. 1 and 3. A boiler (not shown) is used as a steam generator, and the boiler and oven main body 10 are installed independently. Therefore, piping equipment is required to communicate the boiler and the oven body 10. In an oven with this structure, the temperature of the steam drops in the piping from the boiler to the oven body 10, and the surface gloss of baked French bread etc. is not good.
It was not possible to bake it to the desired hardness.

Further, the steam that is not discharged from the steam injection pipe 20 remains in the piping, and this steam becomes water droplets in the piping due to a decrease in temperature. Therefore, the next time you use the oven, immediately
Instead of injecting steam into the oven, open the drain tank 40 to drain the water droplets in the piping, close the drain tank 40 after water stops coming out, and then open the tank 22 of the steam injection pipe 20 to drain the water droplets inside the pipe. Steam is injected into the tank.

By the way, the conventional steam injection pipe 20 has a hollow pipe 200 with a required number of injection ports 220, as shown in FIG.
When steam is injected, water droplets accumulated in the piping 30 from the location of the pot 22 to the steam injection pipe 20 and water droplets in other places in the piping are released into the oven along with the steam. The water was sprayed into the main body 10, causing negative effects such as direct water droplets on the product, making it impossible to bake bread of sufficient quality.

(Object of the invention) The object of the present invention is to further heat the material injected from the steam injection pipe, so that the water droplets accumulated in the piping from the tip of the injection pipe to the injection pipe and water droplets in other places are removed together with the steam. This is to prevent it from being sprayed into the oven.

(Structure of the Invention) The present invention provides: (a) a steam injection pipe is provided in the oven chamber; (b) the steam injection pipe is provided with an outer cylinder and an inner cylinder built into the outer cylinder; (c) A heating material is disposed between the outer cylinder and the inner cylinder to allow the material injected from the inner cylinder to pass under a heated atmosphere. It is an oven with a steam injection device.

Various types of ovens can be used as ovens, such as gas ovens and electric ovens.

In addition to wire mesh, metal lath, wire lath,
Further examples include steel wool.

Furthermore, a multiple pipe having steam injection holes that do not communicate with each steam injection pipe can also function as a heating material. In this case, the positions of the injection holes formed in the multiple tubes are preferably in opposite directions, but the invention is not limited to this, and it is sufficient if the injection holes are formed so that water droplets are not directly injected into the gas oven chamber.

(Example) The present invention will be described in more detail based on an example shown in the drawings.

FIG. 1 is a perspective view of the main parts seen through the inside of the oven with a steam injection device.

The code 10 is the oven body, oven body 10
A steam injection pipe 20 is arranged in the upper part of the interior. A required number of steam jet holes 25 are bored in the steam jet pipe 20 toward the inside of the oven body 10.
The injection pipe 20 is connected to a boiler (not shown) via a pipe 30, a pipe 22, and a pipe 32. A drain pipe 34 is provided at the bottom of the pipe 32, and a drain stock 40 is attached to the end of the drain pipe 34.

FIG. 2 is a partial sectional view of the steam injection pipe.

The steam injection pipe 20 has a double structure including an outer cylinder 24 and an inner cylinder 26. The inner cylinder 26 is a heating material 50
A wire mesh is wrapped around it and inserted into the outer cylinder 24. A required number of steam ejection holes 260 are formed in the inner cylinder 26 so as to be located on the opposite side of the steam ejection holes 25 provided in the outer cylinder 24. and inner cylinder 26
is connected to the piping 30.

To explain the operation of the present invention, the oven main body 10
Before spouting steam inside, the drain tank 40 is opened to discharge water droplets condensed inside the pipe 32 and elsewhere. When water drops no longer come out, drain the drain with 40
When the oven body 10 is closed and the cooker 22 is opened, steam is injected into the oven body 10. Steam is supplied to the outer cylinder 24 and inner cylinder 2.
It passes through a heating material 50 disposed between 6 and is discharged. Since the heating material 50 is sufficiently heated within the oven body 10, the steam passes through the heating atmosphere. This lowers the temperature of the steam, and even if the steam contains some water droplets, the water droplets are not turned into steam and ejected into the oven body 10.

(Effect of the invention) The effects of the present invention are as follows.

(a) The steam injection pipe is equipped with an outer cylinder having a steam injection hole and an inner cylinder having a steam injection hole, and between the outer cylinder and the inner cylinder, the material injected from the inner cylinder is placed in a heating atmosphere. Since the heating material is placed to pass through the oven, even if some water droplets are included in the steam, the water droplets will not turn into steam and be ejected into the oven body, ensuring that the objects to be baked are of sufficient quality. Can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the main parts seen through the inside of the oven with a steam injection device. FIG. 2 is a partial sectional view of a steam injection pipe, and FIG. 3 is a partial sectional view of a conventional steam injection pipe. 10: Oven main body, 20: Steam injection pipe, 2
1: Outer cylinder, 26: Inner cylinder, 25,260: Steam outlet.

Claims (1)

[Scope of Claims] 1 (a) A steam injection pipe is provided in the oven chamber, (b) The steam injection pipe is provided with an outer cylinder and an inner cylinder built into the outer cylinder, and the inner cylinder and the outer cylinder each have the necessary parts. (c) A heating material is disposed between the outer cylinder and the inner cylinder to allow the material injected from the inner cylinder to pass under a heated atmosphere; Oven with steam injection device.