JP2007252785A - Pot apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pot apparatus capable of heating food in a short time to a high temperature while preventing the food piling up on the bottom of a cooking pot from burning. <P>SOLUTION: The pot apparatus includes a ring burner 9 and the cooking pot 4 disposed above the burner 9 for cooking and warming the food. A flame shutoff plate 26 is provided above a flame forming part 6 of the burner 9 and at least at a part overlapping the part 6 for preventing the flame from coming in direct contact with the bottom of the pot 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a pan apparatus for heating contents having a relatively high viscosity such as soup.

  For example, as disclosed in Patent Document 1, there is a direct heating type pan apparatus that directly heats the bottom of the cooking pot and cooks or keeps the contents of the cooking pot. It is effective that the contents can be heated to a high temperature in a short time by directly heating the bottom with a flame.

  By the way, potage and other soups that have become thick due to thickening are difficult to convect in a cooking pan even when heated. When heated in a cooking pan, the contents that have accumulated due to the concentration of flame at the bottom of the cooking pan may burn.

  In addition, there is an indirect heating type pan apparatus that indirectly heats steam, water, or the like as a heat medium, but the contents cannot be heated to a high temperature, and it takes time to reach a high temperature.

Therefore, in the past, cooking was performed with a direct heating type pan apparatus, and then heat was kept with an indirect heating type pan apparatus, but in this case, it is necessary to change the cooking pot, which is very troublesome.
JP 2003-250696 A

  The present invention has been invented in view of the above-described conventional problems, and can prevent the contents staying at the bottom of the cooking pan from scorching, and can heat the contents to a high temperature in a short time, thereby making one cooking It is an object of the present invention to provide a pan device that can perform cooking to heat insulation in a pan.

  In order to solve the above problems, the pan device according to the present invention includes a ring burner 9 and a cooking pan 4 that is disposed above the ring burner 9 and performs cooking and heat insulation. A ring-shaped flame shielding plate 26 for preventing a flame from directly hitting the bottom of the cooking pan 4 is provided at least in a portion overlapping the flame forming portion 6 above the portion 6. With this configuration, the flame formed by the flame forming part 6 of the ring burner 9 by the flame shield plate 26 can be prevented from directly hitting the bottom part 4a of the cooking pot 4 and the bottom part 4a of the cooking pot 4 is flamed by the ring burner 9. The contents can be heated to a high temperature in a short time while preventing the contents staying at the bottom 4a of the cooking pan 4 from scorching. Further, in this case, since the heated air passes through the central opening of the flame shield plate 26 and hits the center of the bottom 4a of the cooking pan 4, the contents can be heated more efficiently.

  A second aspect of the present invention is characterized in that in the first aspect, the ring burner 9 is composed of a ring-shaped inner ring burner 9a and a ring-shaped outer ring burner 9b surrounding the outer periphery of the inner ring burner 9a. The heating power of the inner ring burner 9a and the heating power of the outer ring burner 9b can be separately adjusted, for example, to weaken the heating by the inner ring burner 9a during the heat retention so that the center of the bottom 4a of the cooking pan 4 is difficult to burn.

  Further, a third aspect of the present invention is the method according to the second aspect, wherein the gas supply pipe 15 branches to the outer ring side gas pipe 13 and the inner ring side gas pipe 14 to supply combustion gas from the outer ring side gas pipe 13 to the outer ring burner 9b and to the inner ring side gas pipe. 14 supplies combustion gas from the inner ring burner 9a to the outer ring side gas pipe 13 and the inner ring side gas pipe 14 with open / close valves 23a and 23b, and the gas supply pipe 15 with a flow rate adjusting valve 24. The temperature detecting means for detecting the temperature of the cooking pan 4 is provided, both the on-off valves 23a and 23b are opened to ignite the inner ring burner 9a and the outer ring burner 9b, and the opening of the flow rate adjusting valve 24 is set based on the temperature detecting means. The cooking mode to be proportionally controlled, and the on / off valve 23a provided on the inner ring side gas pipe 14 is closed and the on / off valve 23b provided on the outer ring side gas pipe 13 is opened so that the outer ring of the inner ring burner 9a and the outer ring burner 9b. Ignites over Na 9b only, and is characterized in that the opening of flow control valve 24 composed of a heat insulating mode for proportional control. In the cooking mode, the inner ring burner 9a and the outer ring burner 9b can be heated to a high temperature by the flame of the inner ring burner 9b. In the heat retaining mode, the inner ring burner 9b can be kept warm by the flame of the outer ring burner 9b. It is possible to prevent the central portion, which is a portion that is easily burnt, from being burnt.

  In this invention, the flame formed in the flame formation part of the ring burner can be prevented from directly hitting the bottom part of the cooking pan, and the contents staying at the bottom part of the cooking pot can be prevented from scorching. Further, the bottom of the cooking pan can be heated by heated air directly heated by the flame of the ring burner, and the contents can be heated to a high temperature in a short time. Further, in this case, since the heated air passes through the central opening of the flame shield plate and hits the center of the bottom of the cooking pan, the contents can be heated more efficiently. Therefore, it is effective that one cooking pot can be used for cooking to heat insulation.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. The pan apparatus of the present embodiment shown in FIG. 2 is a commercial pan apparatus used for cooking and keeping warm of soup, and a pedestal 1 that is installed on the floor via an adjuster bolt 1a so as to be adjustable in height. A column 2 erected on both sides of the gantry 1, a box-shaped combustion chamber 3 that is rotatably supported between the columns 2, and a cooking pan 4 supported on the combustion chamber 3 are provided.

  The cooking pan 4 into which the soup as the contents is placed has a cylindrical shape with a bottom, and is inserted and supported from the upper end opening of the combustion chamber 3 to the upper portion of the combustion chamber 3. The outer peripheral part of the bottom part 4a of the cooking pan 4 becomes an arcuate curved surface located upwards outward and smoothly continues to the peripheral wall part 4b. That is, the bottom part 4a of the cooking pot 4 is formed in a U-shaped side section. Yes. A spout 5 is provided at the front end of the opening 4 c of the cooking pot 4.

  Both sides of the combustion chamber 3 are connected to a rotatable shaft 7 projecting from each support column 2, and the cooking pot 4 is moved back and forth together with the combustion chamber 3 by operating a handle 8 provided on the upper portion of one support column 2. The cooking pan 4 can be opened upward, or the cooking pan 4 can be tilted forward and the contents can be taken out from the spout 5.

  FIG. 1 is a schematic view showing the inside of the combustion chamber 3. As shown in the figure, a double ring burner 9 is provided in the lower part of the combustion chamber 3 as a bunsen combustion type ring burner. The double ring burner 9 is composed of an inner ring burner 9a and an outer ring burner 9b surrounding the outer periphery of the inner ring burner 9a. The inner ring burner 9a and the outer ring burner 9b are both circular in plan view and concentric with the cooking pan 4. It is formed and is located below the cooking pot 4.

  A number of flame ports 10 are provided over the entire circumference on the upper surface of each of the inner ring burner 9a and the outer ring burner 9b, and the primary air mixture supplied from each flame port 10 to each of the inner ring burner 9a and the outer ring burner 9b. Gas can be injected upward.

  One end of the outer ring side mixing tube 11 and one end of the inner ring side mixing tube 12 are connected to the lower portions of the inner ring burner 9a and the outer ring burner 9b, respectively, and the other end opening of the outer ring side mixing tube 11 and the inner ring side mixing tube 11 are mixed. Although not shown in the drawings, the tip of the outer ring side gas pipe 13 (see FIG. 4) and the tip of the inner ring side gas pipe 14 (see FIG. 4) face the other end opening of the pipe 12, respectively. The outer ring side gas pipe 13 and the inner ring side gas pipe 14 are branched from a gas supply pipe 15 to which fuel gas is supplied from the outside. The gas supply pipe 15 is connected to each of the outer ring side gas pipe 13 and the inner ring side gas pipe 14. The supplied fuel gas is injected from the tips of the gas pipes 13 and 14. The upstream side of the gas supply pipe 15 is introduced into the gantry 1 from the shaft 7 through one column 2 and connected to a gas supply pipe connection port 16 provided at the lower part of the gantry 1 to which the gas supply pipe 15 (not shown) is connected. is doing. Here, part or all of the gas supply pipe 15 is constituted by a flexible gas hose, and the outer ring side mixing pipe 11 and the inner ring side mixing pipe 12 are always gas supply pipes regardless of the rotation angle of the combustion chamber 3. 15 is connected.

  When fuel gas is injected from the tip of the outer ring side gas pipe 13, the fuel gas is supplied to the outer ring side mixing pipe 11, and for combustion from the other end opening of the outer ring side mixing pipe 11 due to the venturi effect. The primary air is sucked, whereby a primary air mixed gas obtained by mixing the fuel gas and the primary combustion air is supplied to the outer ring burner 9b via the outer ring side mixing tube 11. Similarly, when fuel gas is injected from the tip nozzle of the inner ring side gas pipe 14, this fuel gas is supplied to the inner ring side mixing pipe 12, and the primary combustion is made from each of the other end openings of the inner ring side mixing pipe 12. Air is inhaled, whereby the primary air mixed gas is supplied to the inner ring burner 9a through the inner ring side mixing tube 12. Then, the primary air mixed gas supplied to the outer ring burner 9b and the inner ring burner 9a is ejected from the plurality of flame ports 10, and simultaneously ignited by an ignition means (not shown) to burn while obtaining secondary air for combustion from the outside. Thus, a flame is formed upward from each flame outlet 10. That is, in this embodiment, the flame formation part 6 is made on each flame mouth 10 of each burner 9a, 9b.

  Further, as shown in FIG. 2, an exhaust cylinder portion 17 communicating with the inside of the combustion chamber 3 is provided on the rear wall of the combustion chamber 3 so as to protrude to the outside of the combustion chamber 3, and the tip of the exhaust cylinder portion 17 is on one side. It is bent toward the column 2 side and opens at a position outside the combustion chamber 3 in the left-right direction. An opening 18 a formed at one end of an exhaust pipe 18 fixed to the other part communicates with the opening 17 a at the tip of the exhaust cylinder 17, and heated air generated in the combustion chamber 3 flows from the exhaust cylinder 17 to the exhaust pipe 18. It is supposed to be discharged through. An air inlet 19 is formed in the bottom surface portion of the double ring burner 9 formed by the inner ring burner 9a and the outer ring burner 9b of the combustion chamber 3, and combustion air is supplied from the air inlet 19 to the combustion air. Is introduced into the combustion chamber 3. The combustion chamber 3 is substantially sealed except for the exhaust cylinder portion 17 and the air inlet 19.

  Here, the edges of the exhaust cylinder part 17 and the exhaust pipe 18 are cut, and when the opening 4c of the cooking pan 4 is directed upward, the opening part 17a of the exhaust cylinder part 17 and the opening part 18a of the exhaust pipe 18 are completely formed. However, when the opening 4c of the cooking pan 4 is turned to face forward in order to take out the contents as described above, the exhaust tube portion 17 is moved with respect to the exhaust pipe 18. It can be moved.

  As shown in FIG. 3, a cylindrical body 20 having a flange 20 a provided around an end on the exhaust tube portion 17 side is slidably inserted in the axial direction at the upstream end portion of the exhaust pipe 18. When the cylinder 4 is in a position where the opening 4c of the cooking pot 4 faces upward and the opening on the flange 20a side of the cylinder 20 and the opening 17a of the exhaust cylinder 17 are in communication with each other, the broken line in FIG. When the flange 20a is pushed into the exhaust pipe 18 side against the spring 21 provided in the exhaust pipe 18 (that is, a state in which the spring 21 force is applied in the direction of movement toward the exhaust cylinder portion 17) as shown in FIG. When the position of the opening part of the cylinder 20 and the opening part 17a of the exhaust cylinder part 17 is shifted by contacting the opening part 17a of the exhaust cylinder part 17 and rotating the cooking pot 4 forward, the flange 20a is connected to the exhaust cylinder. As shown by the solid line in FIG. 3, the spring 21 moves to a position protruding 5 to 10 cm on the side opposite to the exhaust pipe 18 and stops. Further, a tapered portion 22 is formed on the outer peripheral edge of the flange 20a so as to be located on the exhaust pipe 18 side toward the outer side, and when the cooking pan 4 is returned so that the opening 4c faces upward, The opening part 17a of the cylinder part 17 hits the taper part 22, so that the flange 20a of the cylinder body 20 is pushed to the exhaust pipe 18 side and moved to a position that matches the opening part of the cylinder body 20 on the flange 20a side. Yes. As shown in FIG. 4, the outer ring side gas pipe 13 and the inner ring side gas pipe 14 are provided with on / off valves 23a and 23b, respectively, and the gas supply pipe 15 is provided with a flow rate adjusting valve 24, and each of the on / off valves 23a and 23b. The flow rate adjusting valve 24 is electrically connected to the control unit 25.

  The control unit 25 starts the cooking mode when an operation unit (not shown) is operated to receive ignition instructions for the inner ring burner 9a and the outer ring burner 9b. When the cooking mode is started, the control unit 25 maximizes the opening degree of the flow rate adjustment valve 24 and opens both the opening / closing valve 23b of the outer ring side gas pipe 13 and the opening / closing valve 23a of the inner ring side gas pipe 14 at the same time. Both the outer ring burner 9b and the inner ring burner 9a are ignited. In subsequent cooking modes, the temperature of the contents detected by a temperature detecting means (not shown) comprising a temperature sensor attached to the cooking pan 4 is proportional to the difference between the target temperature set to an arbitrary value by the operation unit. Thus, proportional control for automatically adjusting the opening degree of the flow rate adjusting valve 24 is performed. That is, when the temperature difference is large, the opening degree of the flow rate adjusting valve 24 is increased, and when the temperature difference is small, the opening degree of the flow rate adjusting valve 24 is decreased. Thereby, the amount of the primary air mixed gas supplied to the inner ring burner 9a and the outer ring burner 9b is adjusted by the relationship shown in FIG. 5, and the temperature of the cooking pan 4 gradually approaches the target temperature.

  Then, when the temperature of the cooking pan 4 approaches the target temperature to some extent by the above control and reaches a preset temperature, the mode is changed to the heat retention mode. After shifting to the heat retention mode, the control unit 25 forcibly lowers the opening of the flow rate adjustment valve 24 to about the middle of the opening at that time, and then closes the on-off valve 23a of the inner ring side gas pipe 14 and closes the outer ring. The on-off valve 23b of the side gas pipe 13 is opened and only the outer ring burner 9b is ignited. Thereafter, in this heat retention mode, the opening degree of the flow rate adjusting valve 24 is automatically adjusted in proportion to the difference between the temperature of the contents detected by the temperature detecting means and the target temperature set to an arbitrary value by the operation unit. Proportional control is performed, whereby the amount of primary air mixed gas supplied to the outer ring burner 9b is adjusted according to the relationship shown in FIG. 5, and the temperature of the cooking pan 4 is maintained near the target temperature. It should be noted that whether or not to shift from the cooking mode to the heat retention mode may be manually switched by the operation unit.

  Here, between the bottom 4 a of the cooking pan 4 inserted into the combustion chamber 3 and the double ring burner 9, the flame formed by the above-described flame forming unit 6 does not directly hit the bottom 4 a of the cooking pan 4. A flame shielding plate 26 is arranged. The flame shield plate 26 is formed in a circular ring shape in plan view, and the flame shield plate 26 and the bottom 4a of the cooking pan 4 are formed in a round bar shape that is long and vertically provided at intervals in the circumferential direction of the flame shield plate 26. They are connected by a connecting portion 28. The outer peripheral edge of the flame shield plate 26 is located outside the flame formed by the flame forming part 6 of the outer ring burner 9b, and is located inside the outer peripheral edge of the bottom part 4a of the cooking pan 4 or overlaps in plan view. is doing. Further, the inner peripheral edge of the flame shielding plate 26 is located on the inner side of the flame formed by the flame forming portion 6 of the inner ring burner 9a, and specifically, the innermost peripheral edge of the flame shielding plate 26 is most distant from the inner peripheral edge by 30 mm or more. An inner flame is formed. As a result, the heated air heated by the flames generated mainly on the outer side among the flames generated in the outer ring burner 9b and the inner ring burner 9a becomes the outer peripheral edge of the flame shielding plate 26 and the combustion chamber 3 as shown by the arrow a in FIG. After passing through the gap formed between the outer peripheral wall and the outer peripheral wall of the cooking pot 4, the upper part of the cooking pot 4 hits the outer peripheral part of the bottom part 4 a and is then discharged from the exhaust tube part 17 to the outside. In addition, since a heated air passage 29 is formed between the flame shield plate 26 and the bottom 4a of the cooking pan 4, it is heated by the flame generated mainly on the inner side among the flames generated in the outer ring burner 9b and the inner ring burner 9a. The heated air rises through the central opening of the flame shield plate 26 as shown by the arrow b in FIG. 1, and then passes through the heated air passage 29 along the bottom 4a of the cooking pan 4 and is then discharged. It is discharged from the cylinder part 17 to the outside.

  As described above, in the present invention, the flame formed by the flame forming portion 6 of the ring burner 9 is formed by the flame shielding plate 26 disposed between the bottom portion 4 a of the cooking pan 4 and the double ring burner 9. The bottom part 4a of the cooking pan 4 can be heated by the air directly heated by the flame of the ring burner 9, and the contents staying at the bottom part 4a of the cooking pan 4 can be burnt. The contents can be heated to a high temperature in a short time while preventing the above. Further, in this case, since the heated air passes through the central opening of the flame shield plate 26 and hits the center of the bottom 4a of the cooking pan 4, the contents can be heated more efficiently. Therefore, it is effective that one cooking pot can be used for cooking to heat insulation.

  Moreover, in this embodiment, since the heat insulation mode which heats only the outer peripheral part of the bottom part 4a of the cooking pan 4 only by the flame of the outer ring burner 9b is provided, the center part of the bottom part 4a of the cooking pot 4 is heated intensively at the time of heat insulation. It is possible to prevent the contents from being burnt to the bottom of the cooking pan 4.

  In the above description, when the control unit 25 shifts from the cooking mode to the heat retention mode, the opening degree of the flow rate adjustment valve 24 is forcibly lowered to about the middle of the opening degree at that time. As shown in FIG. 6, the opening degree of the flow rate adjustment valve 24 in the heat retention mode may be adjusted only by proportional control based on the difference between the temperature of the contents and the target temperature without performing the control for lowering the opening degree.

  Further, as shown in FIG. 7, the outer ring side gas pipe 13 is provided with an outer ring side flow rate adjustment valve 31, the inner ring side gas pipe 14 is provided with an inner ring side flow rate adjustment valve 32, and these flow rate adjustment valves 31, 32 are controlled by the control unit 25. You may control as follows.

  That is, the control unit 25 starts the cooking mode when the operation unit is operated to receive ignition instructions for the inner wheel burner 9a and the outer wheel burner 9b. When the cooking mode is started, the control unit 25 maximizes the opening degree of the outer ring side flow rate adjustment valve 31 and the inner ring side flow rate adjustment valve 32, and simultaneously ignites both the outer ring burner 9b and the inner ring burner 9a. In the subsequent cooking mode, the temperature of the contents detected by the temperature detecting means (not shown) attached to the cooking pan 4 and the operation unit are arbitrarily set while the opening degree of the outer ring side flow rate adjusting valve 31 is fixed to the maximum. Proportional control that automatically adjusts the opening degree of the inner ring side flow rate adjustment valve 32 in proportion to the difference from the target temperature set in the value is performed, whereby the amount of primary air mixed gas supplied to the outer ring burner 9b is reduced. While being fixed, the amount of the primary air mixed gas supplied to the inner ring burner 9a is adjusted, and the temperature of the cooking pan 4 gradually approaches the target temperature.

  Then, when the temperature of the cooking pan 4 approaches the target temperature to some extent by the above control and reaches a preset temperature, the mode is changed to the heat retention mode. In the heat retention mode, the control unit 25 is set to an arbitrary value in the temperature of the contents detected by the temperature detection means and the operation unit while the opening degree of the inner ring side flow rate adjustment valve 32 is fixed at the opening degree at that time. Proportional control that automatically adjusts the opening degree of the outer ring side flow rate adjustment valve 31 in proportion to the difference from the target temperature is performed, whereby the amount of primary air mixed gas supplied to the inner ring burner 9a is fixed, The amount of the primary air mixed gas supplied to the outer ring burner 9b is adjusted, and the temperature of the cooking pan 4 is maintained near the target temperature.

  Thus, in the cooking mode, the heating by the flame formed by the inner ring burner 9a is weakened before the heating by the flame formed by the outer ring burner 9b, so that the soup at the bottom of the cooking pan 4 is retained. It can prevent that the center part which became easy to burn is heated to high temperature.

It is a schematic sectional drawing which shows the inside of the pan apparatus of an example of embodiment of this invention. The whole pan apparatus same as the above is shown, (a) is a front view, (b) is a plan view, and (c) is a side view. It is a principal part expanded sectional view of an exhaust pipe same as the above. It is a block diagram same as the above. It is a graph which shows the relationship between the flow volume of the primary air mixed gas which flows into the gas supply path in the heat retention mode and cooking mode same as the above, and the opening degree of a flow regulating valve. It is a graph which shows the relationship between the flow volume of the primary air mixed gas which flows into the gas supply path in the heat retention mode and cooking mode of another example, and the opening degree of a flow regulating valve. Furthermore, it is a block diagram of another example.

Explanation of symbols

4 Cooking pan 6 Flame forming part 9 Ring burner 26 Flame shielding plate

Claims (3)

  A ring burner, and a cooking pan for heating cooking and keeping warm, which is arranged above the ring burner, and the flame is at the bottom of the cooking pan at least in a portion overlapping the flame forming portion above the flame forming portion of the ring burner A pan apparatus comprising a ring-shaped flame shielding plate that prevents direct contact with the flank.   The said ring burner is comprised with the ring-shaped inner ring | wheel burner and the ring-shaped outer ring | wheel burner surrounding the outer periphery of this inner ring | wheel burner, The pan apparatus of Claim 1 characterized by the above-mentioned.   Branching from the gas supply pipe to the outer ring side gas pipe and the inner ring side gas pipe, supplying combustion gas from the outer ring side gas pipe to the outer ring burner and supplying combustion gas from the inner ring side gas pipe to the inner ring burner, An open / close valve is provided for each of the side gas pipe and the inner ring side gas pipe, a flow rate adjusting valve is provided for the gas supply pipe, temperature detection means for detecting the temperature of the cooking pan is provided, and both the open / close valves are opened to open the inner ring burner and the outer ring burner. The cooking mode in which the opening degree of the flow rate adjustment valve is proportionally controlled based on the temperature detection means, and the on / off valve provided on the inner ring side gas pipe is closed and the on / off valve provided on the outer ring side gas pipe is opened and the inner ring is opened. The pan apparatus according to claim 2, further comprising a heat retaining mode for igniting only the outer ring burner of the burner and the outer ring burner and proportionally controlling the opening degree of the flow rate adjusting valve.

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