JP3869410B2 - Gas burner and cooking device using the same - Google Patents

Description

  The present invention relates to a gas burner and a cooking device using the gas burner. Specifically, the present invention relates to a gas burner having high combustion efficiency and strong thermal power, and a cooking device using the gas burner.

  As a cooking device using a so-called Bunsen-type gas burner, various devices have been conventionally known. Typical examples of such a cooking device include a flame as disclosed in Patent Document 1 and Patent Document 2, for example. A rice cooker that uses a gas burner with a circular mouth is provided. However, according to the knowledge found by the inventor of the present invention, in the case of a gas burner in which the flame mouth is arranged in an annular shape, it is good if the annular ring formed by the flame mouth is single. For example, if concentrically arranged in double or triple, the flame of the flame port located outside obstructs the combustion exhaust gas from the flame port located inside, and the combustion efficiency is reduced. It turns out that there are drawbacks. For this reason, the conventional gas burner has a limit in increasing the thermal power without reducing the combustion efficiency.

In addition, for example, Patent Document 3 and Patent Document 4 propose that the flame outlets are arranged in parallel in a plurality of rows in a straight line instead of in an annular shape. However, there is a limit to obtaining a strong thermal power with high combustion efficiency, although there are many flame outlets arranged per unit area. Thus, all the conventional cooking devices using gas burners have the disadvantages that it takes time to perform cooking such as rice cooking, and the fuel cost increases.
JP 2000-350658 A JP2002-223939 JP-A-7-511165 JP-A-9-28563

  The present invention was made to solve the disadvantages of the conventional gas burner as described above and the conventional cooking device using such a gas burner. The gas burner has good combustion efficiency and can obtain a strong heating power. It is an object of the present invention to provide an efficient cooking device and a cooking system using such a gas burner.

  The present invention solves the above problems by providing a gas burner in which a plurality of flame outlets are arranged radially, and a cooking device and a cooking system using such a gas burner.

  According to the gas burner of the present invention, since the flame mouth rows composed of a plurality of flame mouths are arranged radially, there is a linear space portion extending to the outside of the burner between each flame mouth row, The combustion exhaust gas is sequentially discharged to the outside of the burner through the linear space. Therefore, even if the flame outlets are arranged at a high density, the combustion exhaust gas is efficiently discharged, and it is possible to increase the thermal power without reducing the combustion efficiency. Further, according to the cooking device using the gas burner of the present invention, since a strong thermal power is obtained, for example, the time required for cooking such as cooking rice can be shortened, and the combustion efficiency is high. The amount of fuel gas to be used is smaller, and the fuel cost can be reduced. Therefore, by incorporating a plurality of heating cooking devices using the gas burner of the present invention into a heating cooking system, for example, cooking such as rice cooking can be performed efficiently in a short time and at low cost. There is an advantage.

  Hereinafter, the present invention will be described with reference to the drawings, but the present invention is not limited to the illustrated one.

  FIG. 1 is a plan view showing an example of the gas burner of the present invention, and FIG. In FIG. 1, 1 is a gas burner of the present invention, and 2a to 2h are long burner pipes arranged radially from the center of the gas burner 1 to the outside. On the upper surface of the burner pipes 2a to 2h, a plurality of flame ports 5, 5, 5,... Are linearly arranged in two rows. Reference numerals 4a to 4h denote branch burner pipes that branch from the middle of each of the burner pipes 2a to 2h and extend radially toward the outside of the burner, and a plurality of flame outlets 5 are also formed on the upper surfaces of the branch burner pipes 4a to 4h. 5, 5, ... are linearly arranged in two rows.

  The roots of the burner pipes 2 a to 2 h are connected to a first gas chamber 3 disposed at a substantially radial central portion of the gas burner 1. As shown in FIG. 2, the first gas chamber 3 is hollow, and combustion gas is supplied from an unillustrated gas source to the internal hollow portion via the connected combustion gas supply pipe 6. It is like that. In the illustrated example, the upper surface of the first gas chamber 3 is also provided with a plurality of flame outlets 5, 5, 5,... In some cases, the flame port 5 may not be provided on the upper surface of the first gas chamber 3. In addition, the shape of the first gas chamber 3 is an octagon in the illustrated example, but may be a circle or a polygon having the number of strokes corresponding to the number of burner pipes 2a, 2b,. .

  In the gas burner 1 of the present invention, as described above, since the plurality of flame outlets 5, 5, 5,... Are arranged radially, the plurality of flame outlets 5, 5, 5,. A space that continues to the outside of the gas burner 1 exists between the flame mouth rows formed by. For this reason, when the gas burner 1 is ignited and combusted, the combustion exhaust gas generated at each flame outlet passes through the space existing between the flame orifice arrays to the outside of the gas burner 1 as indicated by arrows in FIG. Therefore, the combustion exhaust gas from the flaming port existing near the center of the gas burner 1 is also quickly discharged to the outside. Thus, according to the gas burner 1 of the present invention, the exhaust efficiency of combustion exhaust gas does not decrease even if there are many flame ports from the center to the outer periphery of the gas burner 1, and as a result, the gas burner 1 Since a large number of flame outlets can be arranged from the center to the outer periphery, a strong thermal power can be obtained and efficient combustion can be achieved. Incidentally, in the case of a normal Bunsen type gas burner, the amount of generated heat is about 25000 kcal / h, but in the case of the gas burner of the present invention, for example, of the type shown in FIG. In this case, a calorific value of about 32000 kcal / h can be obtained.

  In the illustrated example, a plurality of flame ports 5 are provided in a straight line on each of the burner pipes 2a to 2h and the branch burner pipes 4a to 4h, but the number of the flame ports 5 is 2. The number of columns is not limited to one, and may be one column or three or more columns. However, from the viewpoint of securing a combustion exhaust gas discharge space on one side of each flame outlet row, it is desirable to arrange them in two rows as shown. In the illustrated example, the number of burner pipes 2a, 2b... Extending radially from the center is eight, but the number of burner pipes 2a, 2b. The number of burner pipes may be appropriately changed according to the desired thermal power and the distribution form of the desired flame. The number of branch burner pipes 4a, 4b,... Is the same. In the illustrated example, one branch burner pipe 4a to 4h is branched from each of the burner pipes 2a to 2h. The number of branch burner pipes 4a, 4b... Branched from the burner pipes 2a to 2h is not limited to one, but may be two or more, and conversely, zero, that is, there are branch burner pipes. You don't have to. Of course, the number of flame openings provided in each of the burner pipes 2a to 2h and the branch burner pipes 4a to 4h can be appropriately changed according to the strength of the thermal power to be obtained. Moreover, there is no restriction | limiting in particular in the cross-sectional shape of each burner pipe 2a-2h and branch burner pipe 4a-4h, Various shapes, such as circular, a square, another polygon, and an ellipse, are employable.

In the above example, the interior of the first gas chamber 3 is formed as a single space. However, as shown in the horizontal sectional view of FIG. 3, R ₁ , R ₂ , R ₃ , R are separated by the partition Z. ₄ may also be partitioned into four chambers. Each chamber R ₁ , R ₂ , R ₃ , R ₄ has the same horizontal sectional area, and the opening area of the combustion gas supply pipe 6 connected to each chamber R ₁ , R ₂ , R ₃ , R ₄ is also the same. The same. Moreover, the same number of two burner pipes are connected to each of the small chambers R ₁ , R ₂ , R ₃ , R ₄ . Thus, the inside of the first gas chamber 3 to which the combustion gas is supplied has the same horizontal sectional area, the opening area of the combustion gas supply pipe 6 is also the same, and the number of burner pipes to be connected is the same. By partitioning into the same plurality of small chambers, the combustion gas supplied from the combustion gas supply pipe 6 is evenly supplied by the respective burner pipes, thereby realizing a more stable and uniform combustion state. It becomes possible. Needless to say, the number of chambers partitioned by the partition Z is not limited to the four illustrated. Further, the partitioning method by the partition Z is not limited to the illustrated example, and the horizontal sectional area of each small chamber and the opening area of the combustion gas supply pipe 6 are the same, and the number of burner pipes to be connected is the same. Any partitioning method may be used.

  FIG. 4 is a plan view showing another example of the gas burner 1 of the present invention. The difference from the gas burner 1 of the present invention is that there is a space in the center of the first gas chamber 3 to which the burner pipes 2a to 2h are connected. 7 is provided. That is, in the example of FIG. 4, the first gas chamber 3 is formed in a hollow octagonal shape having a space 7 in the center. Also in this case, it goes without saying that a combustion gas supply pipe (not shown) is connected to the first gas chamber 3 so that combustion gas is supplied. Reference numeral 8 denotes a temperature sensor that, for example, comes into contact with the bottom surface of a cooking vessel installed on the top of the gas burner 1 and measures the temperature of the bottom surface. The temperature sensor 8 is preferably provided with a cooling means for cooling the temperature sensor 8 as described later. Also in the case of this example, the tops of the first gas chamber 3 are provided with the flame ports 5, 5, 5... It is not necessary. Further, in the illustrated example, the first gas chamber 3 is formed as a single space that communicates with the inside, but the first gas chamber 3 is divided into, for example, two or four parts, A combustion gas supply pipe (not shown) may be connected to each to supply the combustion gas.

  FIG. 5 is a plan view showing still another example of the gas burner 1 according to the present invention, and FIG. In this example, sub-burner pipes 9a to 9h having a shorter length than the burner pipes 2a to 2h are disposed between the radially extending burner pipes 2a to 2h. Flame ports 5, 5, 5,... Are provided in two rows on the upper surfaces of the auxiliary burner pipes 9a to 9h. The bases of the auxiliary burner pipes 9a to 9h are connected to the first gas chamber 3 by connecting pipes 10a to 10h, respectively, as shown in a cross section in FIG. By adopting such an arrangement, it is possible to arrange the flame openings 5, 5, 5... Over the entire gas burner without using the branch burner pipe. Also in the gas burner of this example, the inside of the first gas chamber 3 is divided into, for example, four small chambers having the same cross-sectional area and to which the same number of burner pipes are connected, as in FIG. Of course, it is also good. Further, similarly to the example in FIG. 4, a space in which the temperature sensor can be arranged may be provided in the central portion of the first gas chamber 3.

  FIG. 7 is a plan view showing still another example of the gas burner 1 of the present invention, and FIG. The gas burner 1 of this example includes four relatively long burner pipes 2a to 2d, and a total of eight relatively short sub-burner pipes 9a to 9h, two each disposed between each of the burner pipes 2a to 2d. The first gas chamber 3 is arranged in the radial central part of the plurality of burner pipes or sub-burner pipes arranged radially. The first gas chamber 3 is supplied with combustion gas from a combustion gas supply pipe 6. Four gas pipes 100 a, 100 b, 100 c, 100 d extending radially in all directions are connected to the first gas chamber 3, and the tips of these four gas pipes 100 a to 100 d are more radial than the first gas chamber 3. Is connected to a hollow and annular second gas chamber 30 disposed outside the first gas chamber. The second gas chamber 30 is provided with connecting pipes 10, 10... At appropriate positions, and the burner pipes 2 a to 2 d and the sub-burner pipes 9 a to 9 a are connected through the connecting pipes 10, 10. 9h is connected to the second gas chamber 30, and combustion gas is supplied. Reference numeral 8 denotes a temperature sensor.

FIG. 9 is a cross-sectional view taken along the line B-B of FIG. 8. As shown in the figure, a partition Z is provided inside the first gas chamber 3, and the horizontal cross-sectional area inside the first gas chamber 3 is The same four chambers R ₁ , R ₂ , R ₃ and R ₄ are partitioned. Each of the small chambers R ₁ , R ₂ , R ₃ , R ₄ is connected with one gas pipe 100a or 100d, and the combustion gas supply pipe 6 is opened with the same opening area. Thereby, the combustion gas supplied into the first gas chamber 3 from the combustion gas supply pipe 6 is evenly distributed in each of the small chambers R ₁ , R ₂ , R ₃ , R ₄ , and the four gas pipes 100a, The gas flows into the second gas chamber 30 through each of 100b, 100c, and 100d, and is further led to the burner pipes 2a to 2d and the sub burner pipes 9a to 9h through the connecting pipes 10, 10,. It will be.

  Thus, the combustion gas supplied into the first gas chamber 3 is once led to the second gas chamber 30 radially outside the gas burner, and the burner pipes 2a to 2d and the sub burner pipes 9a to 9h are connected to each other. In the radial outer portion of the gas burner having a relatively wide gap between the flame outlets by guiding from the radial outer end or the vicinity thereof to the radial inner end, the combustion gas is supplied to each flame outlet at a relatively high gas pressure. In the radial center of the gas burner with a relatively narrow gap between the flame openings, the combustion gas can be guided to each flame opening with a relatively low gas pressure. There is an advantage that the distribution of the applied heat energy can be made more uniform.

  In the illustrated example, the second gas chamber 30 is a hollow annular body that communicates integrally with the inside, but is divided into portions that are connected to the gas pipes 100a, 100b, 100c, and 100d, respectively. May be. Also, the shape does not necessarily need to be an annular shape, and may be a rectangular shape or a polygonal shape, but an annular shape is preferable from the viewpoint of preventing the combustion gas supplied to the inside from flowing uniformly. Further, the number of gas pipes 100a, 100b, 100c, and 100d is not limited to four, and may be two, three, or five or more. The number of small chambers partitioned by the partition Z can be changed as appropriate according to the number of gas pipes 100a... Connected to the first gas chamber 3. Further, the partitioning method by the partition Z is not limited to the example shown in the figure, and any horizontal cross-sectional area of each chamber and the opening area of the combustion gas supply pipe 6 are the same and the number of gas pipes to be connected is the same. Such partitioning may be performed. When the first gas chamber 3 is not divided into small chambers by the partition Z as shown in the drawing, the first gas chamber 3 is divided into two, three, four, or more parts, respectively. The fuel gas supply pipe 6 may be connected to the gas pipes 100a, 100b,.

  FIG. 10 is a plan view showing still another example of the gas burner 1 of the present invention, and FIG. In FIG. 10, 2a to 2l are radially arranged burner pipes, and in order to make the shape of the first gas chamber 3 easy to understand, a portion close to the radial center is partially cut out. The tip extends to the radial center. Needless to say, each of the burner pipes 2a to 2l is provided with a plurality of flame outlets. As can be seen from FIGS. 10 and 11, the first gas chamber 3 has a hollow cylindrical shape with a space 7 in the center, and the combustion gas passes through the combustion gas supply pipe 6. It is designed to be supplied inside. V is an electromagnetic valve, which is controlled by an appropriate control device (not shown), for starting and stopping the supply of combustion gas to the first gas chamber 3, and adjusting the supply amount in some cases. Reference numeral 30 denotes a second gas chamber, which is formed in a hollow annular body. Reference numerals 100 a to 100 d denote gas pipes that connect the first gas chamber 3 and the second gas chamber 30. 10, 10... Are connecting pipes connecting the second gas chamber 30 and the burner pipes 2 a to 2 l, provided at appropriate positions in the second gas chamber 30, and each burner pipe 2 a from the second gas chamber 30. The combustion gas is supplied to ˜2 l.

  8 is a temperature sensor, which is installed using a space 7 provided in the center of the first gas chamber 3, and when a cooking container such as a rice cooker is installed at a predetermined position on the gas burner 1. The temperature of the bottom surface of the cooking container can be output to the outside as an electrical signal by contacting the bottom surface of the cooking container. It is desirable to bias the temperature sensor 8 upward so as to ensure contact with the bottom surface of the cooking container. Based on the temperature signal from the temperature sensor 8, for example, the progress of cooking such as rice cooking is grasped, or the end of the cooking is detected or predicted, and the solenoid valve V is opened and closed via a control device (not shown). It is possible to control the amount of heat generated by the gas burner 1 by adjusting the opening thereof. In addition, 80 is a cooling means provided in the temperature sensor 8, for example, even when the cooking is continuously performed by cooling the temperature sensor 8 at the end of the cooking to a predetermined temperature or less. Each time, the temperature of the temperature sensor 8 is returned to a predetermined initial temperature to enable accurate temperature measurement.

  FIG. 12 is a plan view showing still another example of the gas burner 1 of the present invention, and FIG. In FIG. 12, 2a to 2l are radially arranged burner pipes, and in the same manner as in FIG. 10, in order to make the shapes of the first gas chambers 3a and 3b easier to understand, a part near the radial center is partly shown. Notched. Needless to say, each of the burner pipes 2a to 2l is provided with a plurality of flame outlets. As can be seen from FIGS. 12 and 13, in this example, the first gas chamber is divided into two parts 3 a and 3 b, each of which has a hollow spherical shape via combustion gas supply pipes 6 and 6. Combustion gas is supplied to the inside. V is a solenoid valve, which is controlled by an appropriate control device (not shown), for starting and stopping the supply of combustion gas to the first gas chambers 3a and 3b, and adjusting the supply amount in some cases. is there. Reference numerals 30a and 30b denote second gas chambers which are also divided into two parts, each of which is formed into a hollow semi-annular body. 100a and 100b are gas pipes connecting the first gas chamber 3a and the second gas chamber 30a, and 100c and 100d are gas pipes connecting the first gas chamber 3b and the second gas chamber 30b. 10, 10... Are connecting pipes connecting the second gas chambers 30 a, 30 b and the burner pipes 2 a to 2 l, provided at appropriate positions of the second gas chambers 30 a, 30 b, The combustion gas is supplied from 30b to each of the burner pipes 2a to 2l. In this example, the first gas chamber and the second gas chamber are each divided into two, but the number of divisions is not limited to two. Of course, the number of divisions may be three or more, and the number of divisions may be different between the first gas chamber and the second gas chamber.

  Reference numeral 8 denotes a temperature sensor, which is disposed in a radial central portion between the first gas chambers 3a and 3b. When a cooking container such as a rice cooker is installed at a predetermined position on the gas burner 1, cooking is performed. It contacts the bottom surface of the container, and the temperature of the bottom surface of the cooking container can be output to the outside as an electrical signal. Similarly to the example shown in FIGS. 10 and 11, based on the temperature signal from the temperature sensor 8, for example, grasping the progress of cooking such as rice cooking, or detecting or predicting the end of cooking, It is possible to control the amount of heat generated by the gas burner 1 by adjusting the opening and closing of the electromagnetic valve V and its opening degree through a control device (not shown). In addition, 80 is a cooling means provided in the temperature sensor 8, for example, even when the cooking is continuously performed by cooling the temperature sensor 8 at the end of the cooking to a predetermined temperature or less. Each time, the temperature of the temperature sensor 8 is returned to the initial state to enable accurate temperature measurement.

  FIG. 14 is a plan view showing still another example of the gas burner 1 of the present invention, and FIG. In this example, there is no burner pipe, and the entire first gas chamber 3 is constituted by the enlarged first gas chamber 3. On the upper surface of the first gas chamber 3, a plurality of flame outlets 5, 5, 5,... Are arranged radially in two rows each, and the combustion exhaust gas generated by combustion is as shown by the arrows in the figure. The gas passes through the flame mouth rows and is efficiently discharged to the outside of the gas burner 1.

  FIG. 16: is sectional drawing which shows an example of the rice cooking apparatus 11 as a heat cooking apparatus using the gas burner 1 of this invention. In FIG. 16, the rice cooker 11 includes a furnace body 12, a gas burner 1 disposed at the bottom thereof, and a spacer 13. Needless to say, the gas burner 1 is provided with a combustion gas supply pipe and an ignition device (not shown). In the illustrated example, although the gas burner 1 shown in FIGS. 10 and 11 is used as the gas burner 1, other than that, for example, the gas burner 1 shown in FIGS. 1 to 9 and 12 to 15 described above is used. Any of the gas burners of the present invention can be used. 14 is a rice cooker as a cooking container.

  The oven main body 12 has an opening at the top, and has a space for receiving at least the bottom of the rice cooker 14 as shown in the figure. The gas burner 1 is provided at a position facing the bottom surface when the rice cooker 14 is installed at a predetermined position shown in the drawing. The gas burner 1 is provided with a contact-type temperature sensor 8 at the center thereof, and the temperature sensor 8 comes into contact with the bottom surface of the rice cooker 14 when the rice cooker 14 is installed at a predetermined position shown in the figure. And is biased upward. A signal from the temperature sensor 8 is sent to the outside, and is used for detection and prediction of the completion of rice cooking, as well as grasping the progress of rice cooking. The temperature sensor 8 is provided with a cooling means 80 such as a water cooling jacket, for example, to prevent the temperature sensor 8 itself from becoming overheated or to reduce the temperature of the temperature sensor 8 itself to a predetermined value or less at the start of rice cooking. Used to lower. Reference numerals 15 and 15 denote air supply ports for taking in combustion air, and reference numeral 16 denotes a shutter for adjusting the opening of the air supply ports 15, 15.

  In the case of this example, the furnace body 12 has a peripheral side wall and a bottom surface, and the rice cooker 14 is installed and taken out at a predetermined position using the upper opening of the furnace body 12. As long as 14 can be installed at a predetermined position, the furnace body 12 may not have some or all of the side walls and / or the bottom surface, and the passage when the rice cooker 14 is installed and removed from the predetermined position. It may be used as

  FIG. 17 is a plan view of FIG. 16 as viewed from above, except that the rice cooker 14 is omitted. As shown in FIG. 17, the shutter 16 is provided with holes 17, 17... Larger than the air supply port 15 at positions corresponding to the air supply ports 15, 15. By rotating, the opening degree of the air supply ports 15, 15... Can be adjusted, and the supply amount of combustion air to the gas burner 1 can be adjusted.

  As shown in FIG. 17, the four spacers 13 are equally arranged around the upper opening of the furnace body 12 at an interval of 90 degrees. The spacer 13 supports the buttocks of the rice cooker 14 on the upper surface thereof, plays a role of holding the rice cooker 14 in a predetermined position, and surrounds the rice cooker 14 between the rice cooker 14 and the upper surface of the furnace body 12. It plays the role of ensuring the voids 18, 18, 18, 18 that are distributed almost uniformly over the entire area. The voids 18, 18, 18, 18 serve as passages through which high-temperature combustion exhaust gas escapes to the outside of the furnace body 12 during rice cooking. Since the air gaps 18, 18, 18, and 18 are distributed almost evenly around the rice cooker 14, the heat effect due to the escape of the combustion exhaust gas becomes almost uniform over the circumference of the rice cooker 14, and the uniformity with less unevenness depending on the place. The advantage that stable rice cooking becomes possible is obtained. Moreover, the flame from the gas burner 1 which is a Bunsen type gas burner not only heats the bottom surface of the rice cooker 14, but also burns the exhaust gas from the gaps 18, 18, 18, 18 to the outside. Since the rice cooker 14 is also heated from the side surface, the rice cooker 14 is heated throughout, and the temperature difference inside the rice cooker 14 becomes relatively small, and cooks good rice without unevenness. The advantage of being able to In the illustrated example, four spacers 13, 13, 13, and 13 are arranged at intervals of 90 degrees. However, the number of spacers 13 is not limited to four, and may be three or more. , 6, 7, 8, or more. However, it is necessary that the gaps 18 formed between the spacers 13 are distributed almost uniformly around the rice cooker 14.

  In the rice cooking apparatus using the gas burner of the present invention as a gas burner as well as the rice cooking apparatus 11 shown in FIGS. 16 and 17, the gas burner 1 in which a plurality of flame openings 5 are arranged radially is used as a heating means. The rice can be cooked with a strong heating power, the time required for cooking can be shortened, and the gas burner 1 has good combustion efficiency, so the amount of fuel gas required for cooking rice per pot can be reduced, and the fuel cost There is an advantage that can be reduced.

  FIG. 18 is a conceptual plan view showing an example of a cooking system using the cooking device of the present invention, and a plurality of rice cooking devices 11 as shown in FIGS. 16 and 17 are arranged in two rows. . Reference numeral 19 denotes a transfer robot that moves in the directions of the left and right arrows in the figure. The operation of the transfer robot 19 is controlled by a control device (not shown), and the transfer robot 19 operates as follows, for example. That is, when the rice cooker 14 containing rice and water therein and ready for rice cooking is transported by the upstream transport device 20a and placed on the transition table 200, the transport robot from a control device (not shown). A signal is sent to 19, and the transfer robot 19 moves to the left in the figure, receives the rice cooker 14 from the transition table 200, moves to the front of the vacant rice cooker 11, and moves to a predetermined position of the rice cooker 11. A rice cooker 14 is installed.

  On the other hand, when rice cooking is completed in any of the rice cookers 11, the signal is sent from the control device (not shown) to the transfer robot 19, and the transfer robot 19 moves to the front of the rice cooker 11 where the rice cooking is completed. The rice cooker 14 in which rice cooking has been completed is taken out from 11 and placed on the transition table 200, and the transition table 200 delivers the placed rice cooker to the downstream conveying device 20b. The transport robot 19 repeats such an operation, and the rice cooker 14 sequentially transported to the transition table 200 by the transport device 20a is cooked one after another by the appropriate rice cooker 11, returned to the transition table 200, and the transport device 20b. Will be sent to the next process.

  Determination or prediction of the completion of rice cooking in the rice cooker 14 can be performed based on a temperature signal from a temperature sensor provided at the center of each gas burner 1, for example. In addition, by providing a cooling means in the temperature sensor, the temperature of the temperature sensor itself can be returned to a predetermined initial temperature each time even if rice is repeatedly cooked continuously. It is performed accurately, and the advantage that the determination or prediction of the completion of rice cooking can be performed accurately is obtained.

  According to such a rice cooking system as a heating cooking system of the present invention, since the gas burner of the present invention having high combustion efficiency and strong thermal power is used, rice can be cooked using a smaller amount of fuel gas, and energy Not only can the cost be reduced, but also the time required for rice cooking is shortened, and the amount of rice cooked per unit time can be increased.

  FIG. 19 is a conceptual plan view showing another example of the rice cooking system as the heat cooking system of the present invention, and FIG. 20 is a side view thereof. 19 and 20, reference numeral 1 denotes a gas burner of the present invention as shown in FIGS. 1 to 15, for example, and a plurality of gas burners 1 are arranged in a straight line at equal intervals horizontally. Reference numeral 21 denotes a chain conveyor which engages with the collar portion of the rice cooker 14 and conveys the rice cooker 14 in the direction of the arrow in the figure. The operation of the chain conveyor 21 is controlled by a control device (not shown). For example, the chain conveyor 21 operates as follows. That is, when the rice cooker 14 that contains rice and water and is ready for rice cooking is conveyed by the upstream conveying device 20a, a signal is sent from the control device (not shown) to the chain conveyor 21, and the chain conveyor 21 When the rice cooker 14 is received from the transfer device 20a, the operation is transferred to a predetermined position on the gas burner 1 located on the most upstream side, and the movement is stopped at that position. The gas burner 1 with the rice cooker 14 stopped at a predetermined position thereon starts to burn and starts cooking the rice cooker 14.

  Subsequently, when the next rice cooker 14 in the rice ready state is conveyed by the conveying device 20a, the chain conveyor 21 resumes its operation, and when receiving the rice cooking vessel 14 from the conveying device 20a, it is located on the most upstream side. It transports to a predetermined position on the gas burner 1 and stops moving at that position. At the same time, the rice cooker 14 that was initially in a predetermined position on the gas burner 1 located on the most upstream side is conveyed from the upstream side to a predetermined position on the second gas burner 1, and by stopping the operation of the chain conveyor 21, It stops at a predetermined position on the second gas burner 1 from the upstream side. The rice cooker 14 transported first and the rice cooker 14 transported next are heated by the gas burners 1 and 1 and cooked. Thereafter, every time the next rice cooker 14 is conveyed by the conveying means 20a, the chain conveyor 21 repeats operation and stop, and the rice cooker 14 is heated by the gas burner 1 while being sequentially conveyed in the direction of the arrow in the figure. After the rice is cooked and cooked, the rice cooker 14 is transferred to the downstream conveying device 20b and conveyed to the next step.

  The determination or prediction of the completion of rice cooking in the rice cooker 14 may be performed based on, for example, a temperature signal from a temperature sensor provided at the center of each gas burner 1 or based on the total heating time accumulated. You may do it. In this case, if the temperature sensor is provided with cooling means and the temperature sensor is cooled each time the rice cooker 14 moves, the temperature of each rice cooker 14 can be accurately measured, which is convenient. is there. If rice cooking has already been completed before the rice cooking pot 14 is conveyed to a predetermined position on the gas burner 1 located on the most downstream side, the chain conveyor 21 extends the operating distance, and the rice cooking ends. The cooked rice cooker 14 is controlled so as to pass over the two or more gas burners 1 and deliver it to the downstream conveying device 20b. Each gas burner 1 may be ignited and combusted only when the rice cooker 14 is present at a predetermined position on the upper part thereof, and after the operation of the chain conveyor 21 is started, it is always kept in a combusting state. Also good.

  According to such a rice cooking system as a heating cooking system of the present invention, since the gas burner of the present invention with good combustion efficiency is used, rice can be cooked using a smaller amount of fuel gas, and the energy cost is reduced. In addition to being able to do this, there is an advantage that the time required for cooking rice is shortened and the amount of cooked rice per unit time can be increased. Moreover, since conveyance to the predetermined position for rice cooking of the rice cooker 14 should just carry out intermittent operation | movement which controls operation | movement of the chain conveyor 21 and repeats an operation | movement and a stop, an expensive conveyance robot and complicated control are sufficient. There is an advantage that an apparatus and a control program are not required, and the system can be easily and inexpensively constructed.

  In the above example, cooking has been mainly explained as a typical cooking for cooking and mainly a rice cooking pot as a cooking container, but the cooking device or cooking system of the present invention is a rice cooking device, It is not limited to the rice cooking system, and the cooking container is not limited to the rice cooking pot. It goes without saying that any heating cooking can be used as the object of the gas burner of the present invention, a heating cooking device using the same, or a heating cooking system as long as the cooking is performed by heating the cooking container.

  Since the gas burner of the present invention, the heating cooking device using the same, and the heating cooking system are configured as described above, for example, when cooking such as cooking rice, a large amount of rice is efficiently cooked in a short time. It can be used in the food service industry, lunch box manufacturers, hotels, restaurants, hospitals, and other industrial fields that are required to be cooked in large quantities and efficiently. It is an excellent invention.

It is a top view which shows an example of the gas burner of this invention. It is sectional drawing of FIG. It is a horizontal sectional view of the 1st gas chamber. It is a top view which shows another example of the gas burner of this invention. It is a top view which shows another example of the gas burner of this invention. It is sectional drawing of FIG. It is a top view which shows another example of the gas burner of this invention. It is sectional drawing of FIG. It is a horizontal sectional view of the 1st gas chamber and the 2nd gas chamber. It is a top view which shows another example of the gas burner of this invention. It is sectional drawing of FIG. It is a top view which shows another example of the gas burner of this invention. It is sectional drawing of FIG. It is a top view which shows another example of the gas burner of this invention. It is sectional drawing of FIG. It is a side view which shows an example of the heat cooking apparatus of this invention. It is a top view which shows an example of the heat cooking apparatus of this invention. It is a plane conceptual diagram which shows an example of the heat cooking system of this invention. It is a plane conceptual diagram which shows another example of the heat cooking system of this invention. It is a side surface conceptual diagram which shows another example of the heat cooking system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gas burner 2a-2h Burner pipe 3 1st gas chamber 4a-4h Branch burner pipe 5 Flame outlet 6 Combustion gas supply pipe 7 Space 8 Temperature sensor 9a-9h Sub burner pipe 10a-10h Connection pipe 11 Rice cooker 12 Furnace body 13 spacer 14 rice pot 15 air supply port 16 shutter 17 hole 18 gap 19 transport robot 20a, 20b transporting device 21 chain conveyor 30 the second gas chamber 80 cooling means 100a~100d gas pipe 200 transition table R ₁ to R ₄ Komuro Z partition

Claims (10)

A plurality of radially arranged burner pipes having a plurality of flame openings, and a first gas chamber having a hollow portion to which combustion gas is supplied inside are provided at a substantially central portion in the radial direction, and are arranged radially. A gas burner in which a plurality of burner pipes are connected to the first gas chamber, wherein the first gas chamber includes a partition plate that divides the interior into a plurality of small chambers, and each of the small chambers has the same horizontal sectional area. And the gas burner partitioned so that the number of burner pipes to be connected is the same . A plurality of radially arranged burner pipes having a plurality of flame openings, and a first gas chamber having a hollow portion to which combustion gas is supplied inside are provided at a substantially central portion in the radial direction. outside radial than gas chamber includes a second gas chamber of the hollow connected with the first gas chamber and the gas pipe, a plurality of burners pipe disposed radially is connected to the second gas chamber Ruga Subana . The first gas chamber, provided with a partition plate for partitioning the interior into a plurality of chambers, each chamber, the same horizontal cross-sectional area, and the number of connected Ruga Supaipu are partitioned to be the same The gas burner according to claim 2 . The gas burner according to any one of claims 1 to 3 , wherein the first gas chamber and / or the second gas chamber is divided into a plurality of portions. The gas burner according to any one of claims 1 to 4 , wherein some or all of the plurality of burner pipes have one or more branch burner pipes that branch from the burner pipe and extend radially. An open top is provided with a furnace body having a space for receiving at least the bottom of the cooking container from the opening. When the cooking container is installed at a predetermined position of the cooker body, it faces the bottom surface of the cooking container. The cooking apparatus by which the gas burner in any one of Claims 1-5 is arrange | positioned in the position to do. Surrounding the upper opening of Kamado body, spaced apart from one another, and, as the interval is substantially evenly distributed around the upper opening, according to claim 6, further comprising a plurality of spacers arranged in a plane Cooking equipment. A plurality of heating cooking apparatuses according to claim 6 or 7 , and a conveying means for carrying in and out a cooking container as a heated object at a predetermined position of each of the heating cooking apparatuses, and the operation of the conveying means are controlled. A heating cooking system comprising a control device. A gas burner according to any one of claims 1 to 5 , which is arranged in a plurality of lines, and a conveying means for sequentially moving and stopping a cooking container as a heated body to a predetermined heated position on the plurality of gas burners. And a cooking device comprising a control device for controlling the operation of the conveying means. The cooking system according to claim 8 or 9 , wherein the cooking container is a rice cooker.

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