JP2015175547A - Cooking facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide cooking facility capable of restricting a dispersion of heat from a combustion chamber to a cooking person and effectively using heat energy generated from the combustion.SOLUTION: This invention relates to cooking facility comprising a cooking container 1; an outer cooking body 2 covering an outside part of the cooking container 1; and an intermediate cooking body 3 positioned between the outer cooking body 2 and the cooking container 1. A combustion chamber 5 for combusting mixture gas of fuel gas and combustion air A is formed between the cooking container 1 and the intermediate cooking body 3. The discharging cylinder 6 is connected to the combustion chamber 5. Cooling air passage 7 for air-cooling the intermediate cooking body 3 is arranged between the intermediate cooking body 3 and the outside cooking body 2. A combustion air passage 12 where combustion air A flows is partitioned by a partition plate 14 into an internal air passage 12b adjacent to an outside of the intermediate cooking body 3 and an outer air passage 12a adjacent to an inside of the cooling air passage 7, and after the combustion air A passes through the outer air passage 12a, the air passes through the inner air passage 12b and flows into the combustion chamber 5.

Description

  The present invention relates to a cooking container for containing a cooked food, an outer cooking body that covers the outside of the cooking container and supports the cooking container, and the cooking container located between the outer cooking body and the cooking container. An intermediate cooking body that covers the outside of the combustion chamber, and a combustion chamber for burning a mixed gas of fuel gas and combustion air is formed between the cooking vessel and the intermediate cooking body, and exhausts the combustion exhaust gas in the combustion chamber An exhaust cylinder is connected to the combustion chamber, and a cooling air passage for cooling the intermediate cooking body is provided between the intermediate cooking body and the outer cooking body. .

  In recent years, particularly in commercial kitchens, there has been a strong demand to make the environment in the kitchen room (cooking room) cooler and more comfortable, and the present applicant also has “Ryokan” (registered trademark No. 5051510) on its home page. Kitchen equipment, i.e., a cooking device that is provided with a cooling air passage outside the combustion chamber for heating the cooking vessel so that heat from the combustion chamber is difficult to diffuse to the cooker side of the kitchen chamber (For example, see Non-Patent Document 1).

As shown in FIG. 4, the heating cooking facility described therein includes an inner pot 1 as a cooking container for containing a cooked food, and an outer cooking body that covers the outer side of the inner pot 1 and supports the inner pot 1. It is provided with a pan 2, an intermediate pan 3 as an intermediate cooking body that is located between the outer pan 2 and the inner pan 1 and covers the outside of the inner pan 1, and burns a mixed gas of fuel gas and combustion air A combustion chamber 5 is formed between the inner pot 1 and the middle pot 3, and an exhaust cylinder 6 that exhausts the combustion exhaust gas in the combustion chamber 5 is connected to the combustion chamber 5 to air-cool the middle pot 3. The cooling air passage 7 is provided between the inner pot 3 and the outer pot 2.
According to this heating and cooking facility, the cooling air B is sucked from the air inlet 8 provided at the bottom of the outer pan 2, flows through the cooling air passage 7, and then flows along the exhaust cylinder 6. The exhaust passage 9 is made to flow, while the inner pot 3 and the exhaust cylinder 6 are cooled to suppress diffusion of heat from the combustion chamber 5 to the cooker.

http: // ene. osakagas. co. jp / product / kitchen / point / cool. html

  However, in the prior art shown in FIG. 4, a configuration in which the inner pot 3 and the exhaust cylinder 6 are cooled and the cooling air B that has become high in temperature is exhausted as it is outside the equipment, in other words, caused by combustion. Since a part of the heat is discharged out of the facility together with the cooling air B, it is difficult to say that energy is used effectively, and there is room for improvement in this respect.

  The present invention pays attention to such conventional problems, and its purpose is not to suppress the diffusion of heat from the combustion chamber to the cooker side, but also to reduce the heat energy generated by the combustion. The object is to provide a cooking facility that can be used effectively.

In order to achieve the above object, the cooking device according to the present invention includes a cooking container for storing a cooked food, an outer cooking body that covers the outside of the cooking container and supports the cooking container, the outer cooking body, and the cooking. An intermediate cooking body that is located between the cooking container and covers the outside of the cooking container, and a combustion chamber that burns a mixed gas of fuel gas and combustion air is disposed between the cooking container and the intermediate cooking body. An exhaust cylinder that is formed and exhausts the combustion exhaust gas in the combustion chamber is connected to the combustion chamber, and a cooling air passage for air-cooling the intermediate cooking body includes the intermediate cooking body and the outer cooking body. Heating cooking equipment provided between,
The characteristic configuration is that the combustion air passage through which the combustion air flows is adjacent to the outside of the intermediate cooking body, and the inner air passage adjacent to the outside of the intermediate cooking body by the partition plate and the The cooling air passage is partitioned into an outer air passage adjacent to the inside of the cooling air passage, and the combustion air flows through the outer air passage and then flows through the inner air passage to the combustion chamber. It is in the point of inflow.

According to the above characteristic configuration, since the combustion air passage through which the combustion air flows is provided in a state adjacent to the outside of the intermediate cooking body, of the heat generated by the combustion of the mixed gas in the combustion chamber, The heat to be diffused to the cooking chamber (cooker) side through the intermediate cooking body is mainly transferred to the combustion air flowing through the combustion air passage.
The combustion air passage through which the combustion air flows is provided in a state partitioned by a partition plate into an inner air passage adjacent to the outside of the intermediate cooking body and an outer air passage adjacent to the inside of the cooling air passage. Since the combustion air flows through the outer air passage and then flows through the inner air passage, the combustion air is heated (preheated) gradually and efficiently with time.
Then, since it flows into the combustion chamber and is burned together with the fuel gas, the thermal energy discharged outside the facility in the above-described prior art is effectively used for preheating the combustion air, and combustion is performed. Efficiency can be improved.
Furthermore, since the cooling air passage for air-cooling the intermediate cooking body is located outside the combustion air passage, the diffusion of heat to the cooking chamber side is further reliably suppressed.

  A further characteristic configuration of the cooking device according to the present invention is such that an inflow port for combustion air to the outer air passage is provided on a center line of the cooking vessel and flows into the combustion chamber from the inner air passage. A combustion air outlet is provided on the center line of the cooking vessel, and the outer air passage and the inner air passage are communicated with each other at the uppermost end of the air passage.

According to the above characteristic configuration, the combustion air flows into the outer air passage from the inlet located on the center line of the cooking vessel, flows along the outer air passage, and then from the uppermost end of the outer air passage. After flowing into the inner air passage and flowing along the inner air passage, the air flows into the combustion chamber from the outlet located on the center line of the cooking vessel.
That is, since the combustion air flows through almost the entire length of the outer air passage and the inner air passage, the heat from the intermediate cooking body can be efficiently recovered without waste and used for preheating the combustion air. it can.

  A further characteristic configuration of the cooking device according to the present invention is that the cooking container includes a plurality of heat receiving fins outside the bottom.

  According to the above characteristic configuration, the plurality of heat receiving fins outside the bottom of the cooking container efficiently recovers heat generated by the combustion of the mixed gas in the combustion chamber and transfers the heat to the cooking container, so that it is accommodated in the cooking container. The cooked food can be cooked satisfactorily and contributes to the suppression of heat diffusion to the cooking chamber (cooker) side.

  A further characteristic configuration of the cooking device according to the present invention is such that the cooling air passage is provided in a state of covering the outside of the combustion air passage, and the air for exhausting the cooling air flowing through the cooling air passage is exhausted. An exhaust passage is provided along the exhaust cylinder so as to cover an outer peripheral portion of the exhaust cylinder.

According to the above characteristic configuration, since the cooling air passage for air-cooling the intermediate cooking body is provided in a state of covering the outside of the combustion air passage, it is intended to diffuse to the cooking chamber side via the combustion air. It is also possible to reliably suppress heat diffusion.
An air exhaust passage that exhausts the cooling air that has flowed through the cooling air passage is provided along the exhaust cylinder in a state of covering the outer peripheral portion of the exhaust cylinder. The flowing cooling air also suppresses the diffusion of heat from the combustion exhaust gas flowing through the exhaust cylinder.

The longitudinal front view which shows schematic structure of the heating cooking equipment of this invention The longitudinal front view which shows the principal part of the heating cooking equipment of this invention The longitudinal front view which shows the principal part of the heating cooking equipment by another embodiment of this invention Longitudinal front view showing a schematic configuration of a conventional cooking device

An embodiment of a cooking device according to the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected and demonstrated about the same structure as the structure demonstrated with the prior art of FIG.
As shown in FIG. 1, the cooking device according to the present invention includes, for example, an inner pot 1 serving as a cooking container for storing a cooked product such as a commercial fryer or a boiled noodle container, and the outside of the inner pot 1, that is, The outer pot 2 as an outer cooking body that covers the outer peripheral portion and the bottom of the inner pot 1 and supports the inner pot 1, and the outer pot 2 is positioned between the outer pot 2 and the inner pot 1; An inner pot 3 is provided as an intermediate cooking body that covers the outer periphery and bottom of the inner pot 1.
In other words, the inner pot 1 covers the outer periphery and bottom of the inner pot 3, and the outer pot 2 covers the outer periphery and bottom of the inner pot 3. It arrange | positions so that the center of the outer pot 2 may be located, and the inner pot 1 is supported by the outer pot 2 via the middle pot 3. FIG.

A gas burner 4 that uses city gas, propane gas, or the like as fuel gas is disposed on the inner bottom of the inner pot 3 so as to be positioned on the center line L of the inner pot 1. The space between is formed in the combustion chamber 5 in which the mixed gas of the fuel gas and the combustion air A is combusted, and is configured to heat the cooked food in the inner pot 1 from the bottom and the outer periphery of the inner pot 1, A plurality of heat receiving fins 1 a are provided outside the bottom of the inner pot 1, and a lid 1 b that opens and closes the upper opening of the inner pot 1 is also provided.
An exhaust cylinder 6 for exhausting the combustion exhaust gas in the combustion chamber 5 is connected to the side of the middle pot 3 so as to be connected to the combustion chamber 5, and the exhaust cylinder 6 is connected to the outer pot 2. It extends out of the facility through the side.

A space between the middle pot 3 and the outer pot 2 is formed in a cooling air passage 7 through which cooling air B for cooling the middle pot 3 is air-flowed. An intake port 8 for intake of B is provided, and a cooling cylinder 10 that forms an air exhaust passage 9 for exhausting the cooling air B is connected to the side of the outer pan 2.
The cooling cylinder 10 is concentric with the exhaust cylinder 6 and is provided along the exhaust cylinder 6 so as to cover the outer periphery of the exhaust cylinder 6. The cooling air B sucked from the intake port 8 flows through the cooling air passage 7 and then flows through the air exhaust passage 9 along the exhaust cylinder 6 to be exhausted outside the facility. Has been.

An air supply fan 11 for supplying combustion air A to the gas burner 4 is disposed between the middle pot 3 and the outer pot 2, and the air supply fan 11 and the gas burner 4 are also shown in FIG. As shown, it is connected in communication by a combustion air passage 12 provided adjacent to the outside of the inner pot 3.
That is, the passage-forming plate 13 is disposed at a predetermined interval along the bottom and outer periphery of the middle pot 3, and the space between the passage-forming plate 13 and the middle pot 3 is burned. The air passage 12 is formed.
Further, the combustion air passage 12 is partitioned by the partition plate 14 into an inner air passage 12 b adjacent to the outside of the inner pot 3 and an outer air passage 12 a adjacent to the inside of the cooling air passage 7. 12a and the inner air passage 12b communicate with each other through an annular communication hole 12c provided at the uppermost end of the air passages 12a and 12b.
In addition, the arrangement | positioning location of the fan 11 for air supply is not restricted especially between the middle pot 3 and the outer pot 2, but can also be arrange | positioned on the outer side of the outer pot 2. FIG.

As shown in FIG. 2, the discharge port of the air supply fan 11 is connected to the inflow port 15 of the combustion air A to the outer air passage 12a, and the gas burner 4 located in the combustion chamber 5 from the inner air passage 12b. The outlet 16 of the combustion air A that flows into the inlet 16 and the inlet 15 described above are provided on the center line L of the inner pan 1.
That is, the combustion air A flowing into the outer air passage 12a from the inlet 15 flows through the outer air passage 12a, then flows into the inner air passage 12b from the annular communication hole 12c, and passes through the inner air passage 12b. The fuel gas is supplied to the gas burner 4 from the outlet 16 and mixed with the fuel gas supplied from the gas supply pipe (not shown) to be used for combustion of the fuel gas.

According to the cooking equipment having such a configuration, the combustion air A from the air supply fan 11 passes from the inlet 15 located on the center line L of the inner pot 1 to the outer air passage 12a of the combustion air passage 12. And then flows along the outer air passage 12a, then flows into the inner air passage 12b from the annular communication hole 12c at the uppermost end, flows along the inner air passage 12b, and then the inner pot 1 Flows into the gas burner 4 in the combustion chamber 5 from the outlet 16 located on the center line L.
Meanwhile, the combustion air A is heated by the inner pot 3, in other words, the heat from the inner pot 3 is recovered and preheated, flows into the gas burner 4 in a preheated state, and is mixed with the fuel gas in the gas burner 4. The fuel gas is burned.

Further, a cooling air passage 7 for air-cooling the inner pot 3 is located outside the outer air passage 12 a constituting the combustion air passage 12, and the cooling air is along the cooling air passage 7. Since B flows therethrough, the diffusion of heat to be diffused to the cooking chamber (cooker) side through the combustion air A is reliably suppressed.
The cooling air B flowing through the cooling air passage 7 flows through the air exhaust passage 9 provided along the exhaust cylinder 6 so as to cover the outer peripheral portion of the exhaust cylinder 6, and is used for exhaust. The diffusion of heat from the combustion exhaust gas flowing through the cylindrical body 6 is also suppressed.

[Another embodiment]
(1) Although another embodiment of the present invention will be described with reference to FIG. 3, the description of the configuration described in the previous embodiment will be omitted by assigning the same reference numerals, and mainly different from the previous embodiment. explain.
In the previous embodiment, the configuration in which the outer air passage 12a and the inner air passage 12b are communicated by the annular communication hole 12c provided at the uppermost end of the air passages 12a and 12b is shown in FIG. As shown, a large number of communication holes 12d can be provided in the partition plate 14, and the outer air passage 12a and the inner air passage 12b can be communicated with each other through the communication holes 12d.
In that case, by setting the cross-sectional area of each communication hole 12d to be smaller as it is closer to the center line L of the inner pot 1 and to be larger as it is farther from the center line L, the combustion air A is changed to each communication hole. It will pass through 12d almost uniformly.

(2) In the previous embodiment shown in FIG. 1 and FIG. 2 and another embodiment shown in FIG. 3, a plurality of guide plates are provided in the outer air passage 12 a, and on the center line L of the inner pot 1. It is also possible to guide the combustion air A that has flowed in from the inlet 15 located at a position so as to smoothly flow along the outer air passage 12a. Similarly, a plurality of guides are provided in the inner air passage 12b. The combustion air A which is provided with a plate and flows through the inner air passage 12b smoothly flows along the inner air passage 12b, and further from the outlet 16 located on the center line L of the inner pot 1 to the gas burner 4 It can also be guided so as to be supplied smoothly.

(3) In the embodiment so far, although the fryer for business use, the boiled noodle container, etc. were illustrated as the inner pot 1 which comprises a cooking container, the heating cooking equipment by this invention is not restricted especially for business use, It can also be applied to cooking equipment for general household use.

DESCRIPTION OF SYMBOLS 1 Cooking container 1a Heat receiving fin 2 Outer cooking body 3 Intermediate cooking body 5 Combustion chamber 6 Exhaust cylinder 7 Cooling air passage 9 Air exhaust passage 12 Combustion air passage 12a Outer air passage 12b Inner ventilation passage 14 Partition plate 15 Flow Inlet 16 Outlet L Center line of cooking vessel A Combustion air B Cooling air

Claims (4)

A cooking container for storing the cooked food, an outer cooking body that covers the outside of the cooking container and supports the cooking container, and is located between the outer cooking body and the cooking container and covers the outside of the cooking container. An exhaust cylinder comprising an intermediate cooking body, wherein a combustion chamber for burning a mixed gas of fuel gas and combustion air is formed between the cooking vessel and the intermediate cooking body, and exhausts combustion exhaust gas in the combustion chamber A body is connected to the combustion chamber, and a cooling air passage for air-cooling the intermediate cooking body is a heating cooking facility provided between the intermediate cooking body and the outer cooking body,
A combustion air passage through which the combustion air flows is adjacent to the outside of the intermediate cooking body, and an inner air passage adjacent to the outside of the intermediate cooking body by the partition plate and the cooling air passage. A cooking device provided in a state of being partitioned into an outer air passage adjacent to the inside, and the combustion air flows through the outer air passage and then flows through the inner air passage and flows into the combustion chamber .   An inflow port for combustion air to the outer air passage is provided on the center line of the cooking vessel, and an outlet for combustion air flowing into the combustion chamber from the inner air passage is provided on the cooking vessel. The cooking apparatus according to claim 1, wherein the cooking apparatus is provided on a center line, and the outer air passage and the inner air passage communicate with each other at an uppermost end portion of the air passage.   The cooking apparatus according to claim 1 or 2, wherein the cooking container includes a plurality of heat receiving fins on an outer side of a bottom portion thereof.   The cooling air passage is provided in a state of covering the outside of the combustion air passage, and an air exhaust passage for exhausting the cooling air that has flowed through the cooling air passage covers an outer peripheral portion of the exhaust cylinder. The cooking device according to any one of claims 1 to 3, wherein the cooking device is provided along the exhaust cylinder in a covered state.

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