JP3215693B2 - Food cooking equipment using superheated steam - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to meat, fish, bread,
The present invention relates to improvement of a food cooking apparatus using superheated steam used for thawing and baking foods such as hamburgers and dumplings.

[0002]

2. Description of the Related Art Superheated steam is obtained by keeping saturated steam (hereinafter simply referred to as steam) evaporated at 100 ° C. at a constant pressure.
Superheated steam is a heat-radiating gas that has a far-infrared radiation activity suitable for heating food, unlike steam and high-pressure high-temperature steam, in which oxygen is cut off. It has the advantage that oxidation can be prevented, and that the use of superheated steam makes it possible to bake meat, fish, and the like with good taste. For this reason, conventionally, there has been known an apparatus for baking foods such as meat and fish using superheated steam.
No. 7 proposes this. This includes, as shown in FIG. 8, a boiler (not shown), a superheated steam generator a having discharge holes b... B connected to the boiler by a pipe d,
A conveyer c for placing and transferring the food, generating steam from the boiler, sending the steam to the heating pipe a1 provided in the superheated steam generator a via the pipe d, and providing the steam in the superheated steam generator a. The steam passing through the heating pipe a1 is heated by the burner a2 into superheated steam, and the superheated steam is discharged from the discharge holes b... B and sprayed on the food placed on the conveyor c for baking or the like. Things.

However, in this apparatus, a boiler for generating steam is provided separately from the superheated steam generator a, and the steam generated by the boiler is sent to the superheated steam generator a through a pipe d. There is a problem that the temperature decreases before the steam enters the steam generator a, and it is not possible to efficiently generate superheated steam. Further, if a boiler for generating steam is provided separately from the superheated steam generator a, each of the superheated steam generator a and the boiler requires a heating means, a control device, and the like, and the manufacturing cost is high. In addition, the superheated steam generator a and the boiler must be operated at the time of use, and the energy consumption at the time of use is large. Further, if the boiler a is provided separately from the superheated steam generator a, the whole apparatus becomes large.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above circumstances, and it is possible to efficiently generate superheated steam and to make the entire apparatus compact.
An object of the present invention is to provide a food cooking apparatus using superheated steam that can be manufactured at low cost.

[0005]

According to the present invention, there is provided a superheated steam generator.
Heats the saturated steam to produce superheated steam,
Superheated steam cooking food by applying steam to food
The invention of the present application in an apparatus for cooking food using
To provide a food cooking apparatus using superheated steam having characteristics
This solves the above problem. The first invention of the present application
With the food and containing
A cooking chamber 1 having a mouth 12 and a food outlet 13 opened;
The product is passed through the food entrance 12 into the cooking chamber 1 and the food outlet
13 and the inside of the cooking chamber
In the part, the lower side of the conveyor 2 and the upper side of the conveyor 2
And a superheated steam generator 3 installed on both sides. each
The superheated steam generator 3 includes one tank 41, 51 and a tank 4
1, a heating means for heating the inside of 51. Tanks 41, 5
Water is stored in a part of the inside of the tank 1 so that the tank 4
1 and 51 are water storage chambers 43 and 53 and a steam heating chamber.
44 and 54. The water storage chambers 43 and 53 are
By being heated by the heating means, the water storage chamber 43,
53 water is heated and saturated water vapor is applied to the steam heating chambers 44 and 54.
Qi is generated. The steam heating chambers 44 and 54 serve as heating means.
Therefore, the heating of the steam heating chambers 44 and 54
The saturated steam is heated to be superheated steam.
Any one of the lower part and the upper part in the tanks 41 and 51
Water storage chambers 43 and 53 are arranged on one side, and steam storage
Heat chambers 44 and 54 are arranged. Heating means
Heating pipes 61 and 71 capable of heating are provided.
IPs 61 and 71 are vertically stacked inside tanks 41 and 51
As a result, the water storage chambers 43 and 53 and the steam heating chamber 4
4 and 54. And on
Superheated steam generated by the superheated steam generator 3 described above
Is applied to food transported by the conveyor (2).
It is something that can be done.

In the second invention of the present application, the first invention of the present application is provided.
A water storage room in which the superheated steam generator 3 according to Ming has stored water.
43, 53, steam heating chambers 44, 54, and heating from inside
Possible heating pipes 61, 71, and heating pipe 61,
Heat sources 63 and 73 for supplying heat to 71 are provided. Water storage
The chambers 43 and 53 are arranged around the heating pipes 61 and 71.
The water in the water storage chambers 43 and 53 is
It is heated by IPs 61 and 71 to generate saturated steam.
Let The steam heating chambers 44 and 54 are provided with heating pipes 61 and 7
1 is arranged so as to communicate with the water storage chambers 43 and 53 around the circumference
As a result, the water storage chambers 43 and 53
Accepts the sum water vapor and the received saturated steam
Is heated by the heating pipes 61 and 71 and is superheated steam.
It is said that. The heating pipes 61 and 71 are vertically
Lower pipes 61a, 71c, middle pipe 61
b, 71b, upper pipes 61c, 71a, lower pipe
61a or the upper pipe 71a is inserted into the water storage chambers 43 and 53.
Heats the water to convert it into steam, and into the steam heating chambers 44 and 54
It generates steam, and the middle pipes 61b, 71b
And the upper pipe 61c or the lower pipe 71c is a steam heating chamber.
The steam of 44, 54 is heated to become superheated steam.
is there. The pipe wall of these heating pipes has an uneven shape.
These pipes are arranged side by side
At this time, align the convex part of one pipe with the concave part of the other pipe.
It is intended to be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a schematic side view of a food cooking apparatus using superheated steam according to one embodiment of the present invention.

This food cooking apparatus includes a cooking chamber 1, a conveyor 2 running in the cooking chamber 1, and a superheated steam generator 3 installed in the cooking chamber 1.

The cooking chamber 1 is formed so as to be separated from the outside by a casing 11. Cooking room 1
A food entrance 12 is opened at the right end of the container, and a food outlet 13 is opened at the left end.

The conveyor 2 has a net-shaped belt 21. The belt 21 is used to place and transport the food. The winding wheel 22 is rotatably installed on the right side of the food entrance 12 in the cooking chamber 1.
3 is wound so as to be wound around a winding wheel 23 that is rotatably installed on the left side of 3. Further, by this winding, the belt 21 forms a forward path 24 on the upper side and a return path 25 on the lower side, and reciprocates.
Are arranged so as to pass through the food inlet 12 of the cooking chamber 1 into the cooking chamber 1 and exit from the food outlet 13 to the outside of the cooking chamber 1. Then, with the rotation of the winding wheel 23,
The outward path 24 extends from the food entrance 12 side to the food exit 13
, And the food placed during the traveling is passed through the food inlet 12 into the cooking chamber 1 and the food outlet 13 is provided.
Get out of

The superheated steam generator 3 includes a plurality of lower superheated steam generators 4... 4 and a plurality of upper superheated steam generators 5.
5 is provided. Each of the lower superheated steam generators 4... 4 is provided with one tank 41 and heating means for heating the inside of the tank 41 as shown in FIGS. A water storage chamber 43 is provided on the lower side inside the tank 41, and a steam heating chamber 44 is provided above the water storage chamber 43 inside the tank 41. The water storage chamber 43 is a part for storing water,
Water supply tank 43a and communication pipe 43
The water is supplied from the water supply tank 43a to the water storage chamber 43 as appropriate. Steam heating chamber 44
Is a part that receives the steam generated in the steam heating chamber 44 from the water storage chamber 43 to generate superheated steam, and heats the superheated steam to a predetermined temperature. At the upper end of the steam heating chamber 44, there is provided a superheated steam discharge hole 44a formed by opening the upper end of the tank 41. The superheated steam generated in the steam heating chamber 44 and heated to a predetermined temperature is supplied to the superheated steam discharge hole 44a. To tank 4
1 can be discharged outside.

In this embodiment, the heating means includes a heating pipe 61 and a heat source 63 for supplying heat into the heating pipe 61.
And The heating pipe 61 is for forming a heating path 62 in each of the water storage chamber 43 and the steam heating chamber 44 of the tank 41, and is constituted by a single long pipe. Further, the pipe wall surface of the heating pipe 61 has irregularities in the longitudinal direction by alternately arranging convex portions 60a having a large inner diameter and concave portions 60b having a large inner diameter along the longitudinal direction. ing. The heating pipe 61 forms a three-layer pipe arranged vertically above and below the lower pipe 61a, the middle pipe 61b, and the upper pipe 61c. It is coordinated to the portion up to 44. Specifically, the lower pipe 61a is formed in the water storage chamber 43 in the tank 41 by inserting the heating pipe 61 into the tank 41 from the lower left end of the tank 41 and extending to the right end of the tank 41. . Further, the lower pipe 61a is folded in a U-shape from the right end side to the upper left side, and is arranged side by side above the lower pipe 61a, so that the middle pipe 61b is located below the steam heating chamber 44 in the tank 41. Are formed. Furthermore, the upper pipe is folded back in a U-shape from the left end side to the upper right side of the middle pipe 61b so as to be juxtaposed above the middle pipe 61b. 61c are formed. Also, these lower pipes 6
1a and the middle pipe 61b, and the middle pipe 61b and the upper pipe 61c, respectively, are arranged so that the projection 60a on one pipe wall coincides with the recess 60b on the other side. Thereby, the entire height from the lower pipe 61a to the upper pipe 61c can be reduced, and the height of the tank 41 is reduced. Then, by arranging the heating pipe 61 in the tank 41 in this manner, a single pipe continuously extending from the water storage chamber 43 of the tank 41 to the steam heating chamber 44 in the heating pipe 61. A heating path 62 is formed. The right end side of the upper pipe 61c extends out from the right end of the tank 41 to form an exhaust pipe 61d.

In the present embodiment, the heat source 63 comprises a burner 63 having a burner opening 63a at the right end. The burner port 63a of this burner 63 is
1a, the flame heat emitted from the burner opening 63a is transmitted from the lower pipe 61a to the middle pipe 61b,
It flows along the heating path 62 sequentially in the upper pipe 61c.
The heat source 63 is not limited to the one using the burner 63. For example, a nichrome wire may be disposed in the heating pipe 61, and the heating pipe 61 may be heated by heating the nichrome wire. I can do it.

The lower superheated steam generators 4... 4 formed as described above are supported by the casing 11 of the cooking chamber 1 with the superheated steam discharge holes 44a facing upward, so that It is arranged below the forward path 24 of the conveyor 2. Further, the lower superheated steam generators 4... 4 supported on the casing 11 of the cooking chamber 1 in this manner.
Are arranged side by side in the front-rear direction at intervals. The water supply tank 4 of the lower superheated steam generators 4.
3a is arranged outside the cooking chamber 1 so that water can be supplied to the water supply tank 43a from outside the cooking chamber 1.

On the other hand, each of the upper superheated steam generators 5... 5 has a tank 51, like the lower superheated steam generators 4.
A heating pipe 71 for heating the inside of the tank 51 is provided, and is formed to be upside down with the lower superheated steam generators 4. More specifically, the tank 51 in the upward superheated steam generator 5 has a water storage chamber 53 on the upper side inside, and a steam heating chamber 54 below the water storage chamber 53 in the tank 51. Inside the water storage chamber 53, a tank 51 is provided.
And a water tank 55 separately formed. The water tank 55 includes a water storage section 56 and a water supply tank 58. The water storage section 56 has an opening 56 a on the upper side, and is arranged so as to form a gap 59 with the inner surface of the steam heating chamber 54. The water supply tank 57 is arranged outside the tank 51, and is connected to the water storage section 56 by a communication pipe 57.
The water is stored in the water storage unit 5 through the communication pipe 57.
6 can be appropriately supplied.

The steam heating chamber 54 of the upper superheated steam generator 5
Is provided with a superheated steam discharge hole 54a on the lower end side, and the water storage chamber 5
The steam generated in step 3 is received and turned into superheated steam, and is discharged from the tank 51 through the superheated steam discharge hole 54a.

The heating pipe 71 of the upper superheated steam generator 5 is constituted by a single elongated pipe having a pipe wall having an irregular shape formed by a convex portion 70a and a concave portion 70b.
1 from the upper left side into the water storage chamber 43 in the tank 51,
The tank 51 is extended to the right end side of the water storage chamber 53 so as to penetrate the water storage section 56 of the water storage chamber 43.
The upper pipe 71a is formed in the water storage chamber 53 at the time. Also, the U pipe extends from the right end of the upper pipe 71a to the lower left.
By being folded in the shape of a letter and juxtaposed below the upper pipe 71a, a middle pipe 71b is formed on the upper side of the steam heating chamber 54 in the tank 51.
The lower pipe 71b is folded in a U-shape from the left end side to the lower right side and is arranged side by side below the middle pipe 71b, so that a lower pipe 71c is formed below the steam heating chamber 54 in the tank 51. Also, when these pipes 71a, 71b, 71c are arranged side by side, similarly to the case of the heating pipe 61 of the lower superheated steam generator 4, the convex portion 7 on one pipe wall surface is provided.
0a is matched with the other recess 70b. By arranging the heating pipe 71 in the tank 51 in this manner, one heating pipe extending continuously from the water storage chamber 53 of the tank 51 to the steam heating chamber 54 in the heating pipe 71. A passage 72 is formed. Further, the heating pipe 71 forming the lower pipe 71c is drawn out from the right end of the tank 51 to form an exhaust pipe 71d.

The heat source 73, like the heat source 63 of the lower superheated steam generator 4, comprises a burner 73 having a burner port 73a at the right end. When the burner port 73a of the burner 73 is connected to the left end side of the upper pipe 71a, the flame heat emitted from the burner port 73a transfers the heat from the upper pipe 71a to the middle pipe 71b and the lower pipe 7a.
1c sequentially flows along the heating path 72.

Each of the overheated steam generators 5... 5 thus formed is supported by the casing 11 of the cooking chamber 1 with the superheated steam discharge hole 54a on the lower side. Is arranged above the outward path 24 of the conveyor 2. A plurality of upper superheated steam generators 5... 5 supported on the casing 11 of the cooking chamber 1 in this manner are arranged in parallel in the front-rear direction at intervals.
In addition, the water supply tank 5 of the superheated steam generators 5.
8 are arranged outside the cooking chamber 1 so that water can be supplied to the water supply tank 58 from outside the cooking chamber 1. Further, the exhaust pipe 71d of the upper superheated steam generator 5 is connected to the exhaust pipe 61d of the lower superheated steam generator 4 so as to be united and discharged out of the cooking chamber 1, and the lower superheated steam generator 4 and The exhaust heat passed through the heating paths 62 and 72 of the upper superheated steam generator 5 can be taken out of the cooking chamber 1.

Next, a method of using the food cooking device having the superheated steam generator will be described. The lower superheated steam generators 4... 4 ignite the respective burners 63... 63 and the upper superheated steam generators 5. Thus, each of the lower superheated steam generators 4...
a from the lower pipe 61a to the middle pipe 61
b, flows sequentially along the heating path 62 in the upper pipe 61c,
Each pipe 61a, 61b, 61c is heated. Then, with the heating of the lower pipe 61 a, the water in the water storage chamber 43 in contact with the lower pipe 61 a is heated and converted into steam, and is generated in the steam heating chamber 44. At this time, since the pipe wall surface of the lower pipe 61a is formed in an uneven shape, the contact area between the lower pipe 61a and water can be increased, and water can be efficiently heated to generate steam. The steam is heated by the middle pipe 61b in the steam heating chamber 44 to be superheated steam. At that time, the middle pipe 61
Since the wall surface of the pipe b is formed in an uneven shape, the contact area between the middle pipe 61b and the steam can be increased, and the steam can be efficiently heated to generate superheated steam. Also, superheated steam is
It is further heated by the middle pipe 61b and the upper pipe 61c and exits from the superheated steam discharge hole 44a toward the forward path 24 of the upper conveyor 2. Also, when heating the superheated steam by the middle pipe 61b and the upper pipe 61c, since the pipe wall surfaces of the middle pipe 61b and the upper pipe 61c are formed in an uneven shape, the contact area with the superheated steam can be increased, and the superheated steam can be increased. Can be efficiently heated.

On the other hand, in each of the upper superheated steam generators 5... 5, the flame heat emitted from the burner port 73 a passes through the upper pipe 71 a, the middle pipe 71 b, and the lower pipe 71 c sequentially through the heating path 72.
And the pipes 71a, 71b, 71c are heated, and as the upper pipe 71a is heated, the water in the water storage section 56 in the water storage chamber 53 in contact with the upper pipe 71a is heated and changed into steam, and the steam heating chamber 54 Can generate steam. Water vapor
From the opening 56a of the water storage section 56, through the gap 59 between the inner surface of the steam heating chamber 54 and the water storage section 56, the middle pipe 7
1b, heated to superheated steam, and
It is heated by 1c and exits from the superheated steam discharge hole 54a toward the outward path 24 of the conveyor 2 on the lower side. The upper superheated steam generators 5... 5 also generate the steam, generate the superheated steam, and heat the superheated steam.
Since the pipe wall surfaces of the middle pipe 71b and the lower pipe 71c are formed in an uneven shape, the contact area with water, steam, and superheated steam can be increased, and steam and superheated steam can be efficiently generated, and the superheated steam can be generated. Can be heated. Further, in this embodiment, the temperature of the superheated steam discharged from the superheated steam discharge holes 44a ... 44a of the lower superheated steam generators 4 ... 4 and the superheated steam discharge holes 54a ... 54a of the upper superheated steam generators 5 ... 5 is determined. The temperature is set to 180 to 300 ° C., but the temperature of the superheated steam is not particularly limited.
It can be changed by changing the calorific value of 3, 73 or the length of the heating pipes 61, 71, and can be changed according to the cooking of the food.

In this state, for example, meat, fish,
Foods H such as bread are sequentially placed on a belt 21 forming an outward path 24 of the conveyor 2. As a result, the food H enters the cooking chamber 1 through the food inlet 12 from the food inlet 12 side, and the superheated steam discharge holes 44a... 44a of the lower superheated steam generators 4. A food outlet 13 is provided between the superheated steam discharge holes 54a ... 54a of the steam generators 5 ... 5.
The superheated steam discharge holes 44a... 44a of the lower superheated steam generators 4... 4 and the superheated steam discharge holes 54a.
The superheated steam coming out of 4a can be sequentially applied to the front and back surfaces of the food, and the food can be satisfactorily baked with the superheated steam.

With the above configuration, steam and superheated steam can be generated by one tank 1, so that the entire apparatus can be made compact and can be manufactured at low cost. In addition, in use, only one heat source 63, 73 is required, so that the apparatus can be simplified and energy consumption can be suppressed.

In the present embodiment, one heating pipe 61, 71 is arranged in a portion from the water storage chambers 43, 53 of the tanks 41, 51 to the steam heating chambers 44, 54, and one burner is provided. Although superheated steam is generated from water at 63 and 73, the present invention is not limited to this mode. For example, as shown in FIG. The lower pipe 61a having the exhaust pipe 61d, the middle pipe 61b having the exhaust pipe 61d, and the upper pipe 61c having the exhaust pipe 61d are provided with burners 63... 63 as heat sources for the respective pipes 61a, 61b, 61c. It may be attached.
Further, the heating pipes 61 and 71 are not limited to those having the pipe wall surfaces formed in an uneven shape, and may be those having a pipe wall surface formed in a flat shape without unevenness, and can be appropriately changed.

The heating means is not limited to the one having the heating pipes 61 and 71 passed through the water storage chambers 43 and 53 of the tanks 41 and 51 and the steam heating chambers 44 and 54.
As shown in FIG. 7, in addition to the heating pipe 61, burners 63... 63 are provided outside the tank 41 of the lower superheated steam generator 4, or the tank of the lower superheated steam generator 4 is replaced with the heating pipe 61. 63 may be provided outside the tank 41 and the tank 41 may be heated from the outside by the burners 63.

Further, the tanks 41 and 51 are not limited to the box shape, and may be formed, for example, on the outer peripheral portion of the heating pipe 61 along the longitudinal direction of the heating pipe 61. More specifically, for example, as shown in FIGS. 6A and 6B, a water storage chamber 43 is formed at the start end side of the outer periphery of the heating pipe 61 on the burner 63 side, and the rear end of the outer periphery of the heating pipe 61 is formed. By forming the steam heating chamber 44 on the side, one tank 41 having the water storage chamber 43 and the steam heating chamber 44 communicating with the water storage chamber 43 may be formed, and can be changed as appropriate.

Further, for example, as shown in FIG.
The outlet hole 44a is provided with an upper superheated steam discharge hole 44b facing upward.
And a lower superheated steam discharge hole 44c facing downward.
As above, two superheated steam discharge holes can be provided.
You. The superheated steam generator of the present invention can be used not only for baking foods but also for thawing frozen foods, and can be widely used for cooking foods.

In the present invention configured as described above, the water storage chambers 43 and 53 are provided in one tank 41 and 51.
In order to provide the steam heating chambers 44 and 54, if the water in the water storage chambers 43 and 53 is heated to be steam, the steam can be generated in the steam heating chambers 44 and 54. Is heated in the steam heating chambers 44 and 54 to be superheated steam. Therefore, the steam can be heated immediately without cooling, and the superheated steam can be efficiently generated, and the generated superheated steam can be heated in the steam heating chambers 44 and 54 to a predetermined temperature. On the other hand, it is only necessary to form one tank 41, 51 at the time of manufacture, and it can be manufactured at low cost.
1 can be operated, and the energy consumption during use can be reduced. Further, the whole apparatus can be made compact and the installation area can be made small.

As heating means, heating pipes 61 and 7 are used.
1, the water storage chambers 43 and 53 and the steam heating chamber 44,
54. By doing this,
The water in the water storage chambers 43 and 53 and the steam in the steam heating chambers 44 and 54 can be brought into contact with the outer circumference of the heating pipes 61 and 71. Therefore, if the heating pipes 61 and 71 are heated from the inside, water, steam, and superheated steam in contact with the pipes can be efficiently heated, and steam can be generated from water and superheated steam can be efficiently generated from steam, and the superheated steam can be generated. It can be raised to a predetermined temperature.

Further, the heating pipes 61, 71 are constituted by one piece, and the water storage chambers 43, 53 are connected to the steam heating chamber 44,
Assume that it has been extended to 54. By doing so, one heating path 62, 72 extending from the water storage chambers 43, 53 to the steam heating chambers 44, 54 can be formed in the heating pipes 61, 71. When the heat is sent from the heater, the entire heating pipes 61 and 71 can be heated, and the water in the water storage chambers 43 and 53, the steam in the steam heating chambers 44 and 54, and the superheated steam can be heated by one heat source.

[0031]

As described above, the first invention of the present application is the water storage chamber 4.
By heating the water of 3,53 into steam, the steam can be generated in the steam heating chambers 44,54, and the steam can be immediately heated in the steam heating chambers 44,54 to superheated steam. . Therefore, the steam can be heated without cooling, and the superheated steam can be efficiently generated, and the generated superheated steam can be heated in the steam heating chambers 44 and 54 to have a predetermined temperature. On the other hand, in production, one tank 4
1 and 51 can be formed, it can be manufactured at low cost, and at the time of use, only one tank 41, 51 needs to be operated, and energy consumption at the time of use can be reduced. Further, the whole apparatus can be made compact, the installation area can be made small, and the apparatus can be used conveniently. Also water
Generated in the water in the storage chambers 43 and 53 and in the steam heating chambers 44 and 54
Steam comes in contact with the outer circumference of the heating pipes 61 and 71
You can do so. Therefore, this heating pipe 6
If 1, 71 is heated from the inside, water and steam
Gas, and superheated steam can be efficiently heated.
Superheated steam can be generated from steam and
It can be raised to a predetermined temperature.

[0032] The second invention of the present application is an effect of the first invention of the present application.
In addition, the contact area between the heating pipes 61 and 71 and water, steam, and superheated steam can be increased, and water can be efficiently turned into steam.
The steam can be turned into superheated steam, and the superheated steam can be heated.

[Brief description of the drawings]

FIG. 1 is a schematic side view of one embodiment of a food cooking device having a superheated steam generator for cooking food.

FIG. 2 is a cross-sectional view of one embodiment of the superheated steam generator for cooking food of the present invention.

FIG. 3 is a longitudinal sectional view of one embodiment of the superheated steam generator for cooking food of the present invention.

FIG. 4 is a cross-sectional view of another embodiment of the superheated steam generator for cooking food.

FIG. 5 is a longitudinal sectional view of still another embodiment of a superheated steam generator for cooking food.

FIG. 6 relates to still another embodiment of a superheated steam generator for cooking food, wherein (A) is a cross-sectional view thereof, and (B) is
FIG.

FIG. 7 is a longitudinal sectional view of an embodiment in which two superheated steam discharge holes are provided in the superheated steam generator for food cooking.

FIG. 8 is a schematic side view of a food cooking device having a conventional superheated steam generator for food cooking.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooking room 2 Conveyor 3 Superheated steam generator 4 Lower superheated steam generator 5 Upper superheated steam generator 11 Casing 12 Food entrance 13 Food outlet 21 Belt 41, 51 Tank 43, 53 Water storage chamber 44, 54 Steam heating Chambers 44a, 45a Superheated steam discharge holes 61, 71 Heating pipes 61a, 71c Lower pipes 61b, 71b Middle pipes 61c, 71a Upper pipes 63, 73 Heat source, burner H food

Continuation of the front page (56) References JP-A-11-7452 (JP, A) JP-A-9-238623 (JP, A) JP-A-11-128065 (JP, A) JP-A-11-89722 (JP, A) , A) Jiko 4-7452 (JP, Y1) Jiko 4-7606 (JP, Y1) Jiko 64-64 (JP, Y2) Jiko 4-37551 (JP, Y2) (58) Field surveyed (Int.Cl. ⁷ , DB name) A47J 27/16 A23L 3/02-3/24 A23L 3/36-3/375

Claims (2)

(57) [Claims] 1. A heated saturated steam to produce a superheated steam by superheated steam generator (3), the food cooking apparatus using superheated steam cooking food by applying the superheated steam to the food, the casing It is separated from the outside by (11) and
Cooking room (1) with an opening (12) and a food outlet (13)
Once, food was passed through to the cooking chamber (1) in the food entrance (12) out of food
Conveyor (2) to be transported out of the outlet (13) , and the conveyor and the lower side of the conveyor (2) inside the cooking chamber.
A (2) Superheated steam generator installed on both the upper side (3)
With the door, the superheated steam generator (3) is a single tank (41) (51), the tank (4
1) A heating means for heating the inside of (51) is provided, and water is stored in a part of the inside of the tanks (41) and (51). (43) (53) and steam heating chambers (44) and (54), and the water storage chambers (43) and (53) are heated by the heating means, so that the water storage chambers (43) and (53) are heated. ) Water is heated and steam heating chamber
Saturated steam is generated in (44) and (54), and the steam heating chambers (44) and (54) are heated by the heating means. Either the lower part or the upper part inside the tanks (41) and (51)
The water storage chambers (43) and (53) are arranged on one side, and the steam heating chamber is
(44) (54) is arranged, the heating means, a heating pipe that can be heated from the inside (61) (71)
The heating pipes (61) and (71) are inside the tanks (41) and (51).
The water storage room (43) (53)
And the steam heating chambers (44) and (54), respectively.
Ri, the above superheated superheated steam generated by the steam generator (3) is a conveyor with respect to the food being transported by (2), food cooking using superheated steam, characterized in that those devoted apparatus. 2. A superheated steam generator (3) includes a water storage chamber (43) (53) for storing water, a steam heating chamber (44) (54), and a heating pipe (61) heatable from inside. ) (71) and heating pipe (61)
(71) is provided with heat sources (63) and (73) for supplying heat, and the water storage chambers (43) and (53) are arranged around the heating pipes (61) and (71). The water in the water storage chambers (43) and (53) is heated by the heating pipes (61) and (71) to generate saturated steam, and the steam heating chambers (44) and (54) are heated by the heating pipes (61) and (71). ) Is arranged so as to communicate with the water storage chambers (43) and (53), thereby receiving the saturated steam generated from the water storage chambers (43) and (53) and receiving the saturated water vapor. The steam is heated by the heating pipes (61) and (71) to be superheated steam, and the heating pipes (61) and (71) are
1a) (71c), middle pipes (61b) (71b), and upper pipes (61c) (71a), and the lower pipe (61a) or the upper pipe (71a) is the water storage chamber (43) (5
The water in (3) is heated and converted to steam, and the steam heating chamber (44) (5)
4) to generate steam in the middle pipe (61b) (71b) and the upper pipe (61c) or the lower pipe
(71c) heats the steam in the steam heating chambers (44) and (54) into superheated steam, and the pipe wall surfaces of these heating pipes have an uneven shape. 2. The food cooking apparatus using superheated steam according to claim 1, wherein when the pipes are vertically arranged, a convex portion of one pipe is matched with a concave portion of the other pipe.