JP3006117U - Baking oven - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a baking oven for baking bread, etc., capable of baking bread without unevenness of baking, and injecting steam as required. [Structure] A furnace part (3) and a heat generating and blowing part (2) housed in a housing (1) are provided, and the hot air generated by the heat generating and blowing part (2) is circulated in the furnace part (3). In a baking oven for baking bread, which is placed in the
An exhaust port (7) for exhausting hot air from the housing to the outside of the housing (1) is provided in the lower part of the furnace section (3).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a baking oven for baking bread, and more particularly to a baking oven for baking bread and cookies by circulating hot air.

[0002]

[Prior art]

 A heat-circulation type baking oven such as a baking oven has a furnace part and a heat-generating blower housed in a housing, and buns, cookies, etc. placed in the furnace part by circulating the hot air generated by the heat-generating blower part. To bake. As shown in FIG. 3, in a conventional heat-circulation type baking oven such as a baking oven, a heat-generating blower unit 30 that generates and blows heat is disposed below a furnace unit 31 to circulate the hot air. An exhaust port 33 for exhausting from the portion 31 to the outside of the housing 32 was provided in the upper portion of the furnace portion 32.

[0003]

[Problems to be solved by the device]

 For this reason, in the conventional baking oven for baking bread or the like, since the exhaust port 33 is provided above the furnace portion 31, there is a problem that the bread or the like placed in the furnace portion 31 cannot be uniformly baked and uneven baking occurs. there were. This is because hot air having a higher temperature among the hot air generated in the heat generating / blowing unit 30 has a property of rising to the upper side of the furnace unit 31, and the hot air having a higher temperature because the exhaust port 33 is located above the furnace unit 31. This is because there is a strong tendency to be unevenly distributed above.

In addition, it is known that injecting water vapor into the furnace portion when baking bread or the like is an effective baking method, but due to technical difficulty that uneven heating is likely to occur There was a problem that only a part of the furnace could be fired and the firing range in the furnace section was limited.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, to enable bread or the like without baking unevenness to be baked in a wide range in the furnace portion, and to which steam can be injected as needed. An object is to provide a baking oven.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the oven for baking bread of the present invention comprises a furnace part housed in a housing and a heat generating / blowing part. The hot air generated by the heat generating / blowing part is circulated and placed in the furnace part. In a baking oven for baking bread and the like to be baked, an exhaust port for discharging hot air from the furnace portion to the outside of the housing is provided at a lower portion of the furnace portion.

In this case, the heat generating and blowing section is provided with a fan arranged adjacent to the opening on the side of the furnace section and a heater arranged on the outer circumference of the fan. That the furnace part and the heat generating and blowing part are partitioned by a partition wall, and a plurality of vent holes vertically distributed are formed in the partition wall, and the heat generating and blowing part has a steam generating means. It is preferable that the steam generator is provided and has a heat storage body that is installed to face the heater, and a liquid supply pipe that supplies a liquid to the heat storage body.

[0008]

[Action]

 Since the exhaust port for discharging hot air from the furnace part to the outside of the housing is provided in the lower part of the furnace part, the hot air generated and sent by the heat generating and blowing part tends to rise upward in the furnace part and It has a tendency to descend toward the exhaust port in the lower part and can form a uniform temperature distribution in the furnace part. The fan of the heat generating and blowing section is arranged adjacent to the opening on the side of the furnace section, and the heater is arranged on the outer periphery of this fan. The hot air is sucked into the wind part to circulate the hot air.

Since a plurality of vent holes are formed in the partition wall that separates the furnace part and the heat generating and blowing part so as to be vertically distributed, hot air is sent from the heat generating and blowing part to the furnace part through these vent holes. Pour into. Since the steam generating means is provided in the heat generating and blowing section, by adjusting the steam generating means, it is possible to selectively mix superheated steam or steam having a temperature of 100 ° C. or less with the hot air.

[0010]

【Example】

 An embodiment of a baking oven for baking bread according to the present invention will be described below with reference to the drawings. FIG. 1 shows a side sectional view of this embodiment, and FIG. 2 shows an upper sectional view. For comparison, the exhaust port 33 in the conventional baking oven for baking bread is shown by a dotted line. A heat generating and blowing section 2 and a furnace section 3 are housed in the housing 1. The housing 1 has an openable / closable lid 1a on its side portion.

An opening 4 is formed in a side portion of the furnace unit 3, and a plurality of horizontally long ventilation holes 6 vertically distributed are formed in a partition wall 5 between the furnace unit 3 and the heat generating and blowing unit 2. . A wide exhaust port 7 for discharging hot air from the furnace part 3 to the outside of the housing 1 is provided in the lower part of the furnace part 3.

As shown in FIG. 2, which is an upper cross-sectional view, the heat generating and blowing section 2 is formed so as to surround the furnace section 3 in a U-shape. A sirocco fan 8 of the heat generating and blowing section 2 is disposed adjacent to the opening 4 of the furnace section 3. The opening 4 functions as a suction port for sucking hot air from the furnace section 3 to the heat generating and blowing section 2 by the sirocco fan 8 and circulating the hot air. In this case, the ventilation port 6 functions as an inflow port from the heat generating and blowing part 2 of the hot air.

A ring-shaped heater 9 is arranged on the outer periphery of the sirocco fan 8. The sirocco fan 9 is driven by a fan motor 10. The heat generating and blowing section 2 is provided with a steam generating means 11. The steam generating means 11 is a heat storage body 12 for steam generation, which is installed facing the heater 9 and is delivered to the heat storage housing, and is a liquid supply pipe for supplying a liquid such as water to the heat storage body 12. And 13. An auxiliary heater 14 for heating the heat storage body 12 is disposed below the heat storage body 12 as necessary. When a predetermined amount of water is injected from the liquid supply pipe 13, the steam generating means 11 can generate superheated steam when the amount of water injected is small and generate steam of 100 degrees Celsius or less when the amount of water injected is large. It is possible, and any one of the steams can be selectively mixed with the hot air to fill the furnace section 3.

Next, the operation of this embodiment will be described. The air in the heat-generating blower section 2 heated by the heater 9 is blown by the sirocco fan 8, and the hot air flows into the furnace section 3 from the ventilation port 6, and the hot air in the furnace section 3 passes through the opening 4 again. The sirocco fan 8 sucks the heat into the heat generation / blowing section 2, heats it with the heater 9, and sends it again from the ventilation port 8 into the furnace section 3. Cycle between 3 and.

When the circulating hot air exceeds a predetermined pressure, a valve (not shown) of the discharge port 7 opens, and a part of the hot air is discharged from the housing 1 to the outside of the housing 1. Since the exhaust port 7 is provided in the lower part of the furnace part 3, the hot air in the furnace part 3 is forcibly lowered toward the exhaust port 7 in the lower part of the furnace part 3, so that hotter hot air It is possible to offset the inherent property of the hot air that is about to rise upward in the furnace section 3 and form a uniform temperature distribution in the furnace section.

By controlling the amount of water injected from the liquid supply pipe 13 by the steam generating means 11, hot steam or water steam of either superheated steam or steam at 100 ° C. or lower can be selectively mixed. it can. For example, by mixing the superheated steam with the hot air for a time of 5 to 10 seconds in the initial baking of the bread, the portion of the bread dough which is exposed to the superheated steam becomes hard and can give a luster. By forming a film of superheated steam on the surface of the dough such as bread, it is possible to prevent the umami from escaping. In this case, if the superheated steam is injected for a long time, the bread breaks will be hardened, and if the whole bread hardens at the beginning of baking, it will burst during the baking. Adjust the injection time of superheated steam in consideration of various conditions such as the degree.

As described above, according to the configuration of this embodiment, since the exhaust port 7 for discharging hot air from the furnace portion 3 to the outside of the housing 1 is provided in the lower portion of the furnace portion 3, the furnace portion 3 It is possible to form a uniform temperature distribution inside.

The heat generating and blowing section 2 is formed so as to surround the furnace section 3 in a U-shape, and a plurality of ventilation holes 6 are vertically distributed in the partition wall 5 between the heat generating and blowing section 2 and the furnace section 3. Since it is provided, hot air can be efficiently circulated in the furnace section 3, and a uniform temperature distribution can be formed in the furnace section 3.

Since the sirocco fan 8 is arranged adjacent to the opening 4 on the side of the furnace part 3 and the heater 9 is arranged on the outer periphery of the sirocco fan 8, the hot air is efficiently circulated. Can be made. Since the steam generating means 11 is provided in the heat generating and blowing section 2, by adjusting the steam generating means 11, it is possible to selectively mix superheated steam and steam having a temperature of 100 ° C. or less with the hot air.

[0020]

[Effect of device]

 As described above, according to the present invention, since the exhaust port for discharging hot air from the furnace portion to the outside of the housing is provided in the lower portion of the furnace portion, the temperature distribution in the furnace portion can be made uniform. As a result, it is possible to eliminate uneven baking of bread and the like, and it is possible to uniformly bake the bread dough and the like over a wide range in the entire furnace section.

Since the steam generating means is provided in the heat generating and blowing section, by adjusting the steam generating means, it is possible to selectively mix superheated steam and steam at 100 ° C. or lower with the hot air. By exposing the dough surface of bread or the like to superheated steam, it is possible to instantly cure and give a luster, and also to prevent umami from escaping.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a baking oven for baking bread according to the present invention.

FIG. 2 is an upper sectional view of FIG.

FIG. 3 is a side sectional view showing a conventional oven for baking bread and the like.

[Explanation of symbols]

 1-Housing 2-Heat generating and blowing part 3--Furnace part 4--Opening 5--Differential partition 6-Venting hole 7 ...・ ・ ・ Exhaust port 8 ・ ・ ・ Sirocco fan 9 ・ ・ ・ Heater 10 ・ ・ ・ ・ Fan motor 11 ・ ・ ・ ・ Steam generator 12 ・ ・ ・ ・ ・ ・ Heat storage unit 13 ・ ・ ・ ・ ・ ・ Liquid supply pipe 14 ... Auxiliary heater

Claims (5)

[Scope of utility model registration request] 1. A baking oven for baking bread, etc., which comprises a furnace part housed in a housing and a heat-generating and blowing part, and circulates hot air generated by the heat-generating and blowing part to bake bread or the like placed in the furnace part. An oven for baking bread or the like, characterized in that an exhaust port for discharging hot air from the furnace part to the outside of the housing is provided in a lower part of the furnace part. 2. The heat generating and blowing section is provided with a fan arranged adjacent to an opening on a side portion of the furnace section, and a heater arranged on the outer circumference of the fan. The oven for baking bread, etc. according to claim 1. 3. The furnace section and the heat generating and blowing section are partitioned by a partition wall, and the partition wall is formed with a plurality of vent holes vertically distributed. Item 3. An oven for baking bread, etc. according to any one of Item 2. 4. The oven for baking bread, etc. according to any one of claims 1 to 3, wherein the heat generating and blowing section is provided with steam generating means. 5. The pan according to claim 4, wherein the steam generating means includes a heat storage body installed facing the heater, and a liquid supply pipe for supplying a liquid to the heat storage body. Oven for baking.