JP2007236423A - Heating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating apparatus such as a cooking apparatus capable of cooking a large volume of materials with an inexpensive structure. <P>SOLUTION: Superheated steam 19 for heating is fed to steam jackets 14 and 15 of a heating pot 11. In the steam jackets 14 and 15, a superheated steam supply passage 17 and a discharge passage 18 for discharging steam used for heating are connected to each other, and a pressure regulating valve 20 is disposed in the discharge passage 18. The steam jacket 14 is divided into a bottom jacket chamber 15 and a side jacket chamber 16, and a steam trap 31 is disposed in the side jacket chamber 16. Superheated steam is fed into the bottom jacket chamber 15, and saturated steam is fed into the side jacket chamber 16. Alternatively, superheated steam is fed into the bottom jacket chamber 15 and also into the side jacket chamber 16. A superheated steam generating device 35 can control the calorie fed to the steam so that the temperature of the heating pot 11 detected by a temperature sensor 39 is a set temperature. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heating device that can be used for cooking and the like.

  When cooking a large amount of food, steam cookers using saturated steam as a heat source are often used for cooking boiled foods and boiled foods. On the other hand, gas cookers using gas as a heat source are often used for cooking fried foods. This is because cooking of boiled foods and boiled foods is a cooking method in which ingredients are heated through liquids such as water and soup stock, and therefore the heating temperature is about 100 ° C. For this purpose, saturated steam having a large heat capacity is advantageous. That's why. On the other hand, the cooking of the stir-fried food is a cooking method of heating in a short time at a high temperature of about 250 to 300 ° C. This is because the use of gas is advantageous.

  However, it is difficult to secure the required amount of heat with gas. This is especially true for gas stoves for home use, which is why it is difficult to make delicious Chinese food at home. On the other hand, since the gas stove for business use has a large amount of heat, such a problem hardly occurs. However, there is a limit in using gas as a heat source when a large amount of food is required for commercial use.

In order to cope with this, an apparatus including a saturated steam supply unit and an electromagnetic heating unit has been developed as an apparatus for cooking a large amount of ingredients that require cooking at high temperatures (Patent Document 1). .
JP 2000-201807 A

  However, those equipped with saturated steam supply means and electromagnetic heating means require both a steam generator and an electromagnetic heating device, and a large-capacity electromagnetic heating device is required for a device for cooking in large quantities. Therefore, there is a problem that the price of the apparatus becomes high.

  Then, this invention solves such a subject and aims at obtaining heating apparatuses, such as a cooking apparatus which can perform a large amount of high temperature cooking with an inexpensive structure.

In order to achieve this object, the present invention is configured to supply superheated steam for heating to the steam jacket in a heating kettle equipped with a steam jacket.
Further, the present invention connects a supply path for heating superheated steam and a discharge path for exhaust steam after being used for heating to the steam jacket in a heating kettle equipped with a steam jacket, and adjusts the pressure to the discharge path. A valve is provided.

  According to the present invention, in the above, the steam jacket is divided into a first jacket portion and a second jacket portion, and superheated steam is supplied to the first jacket portion and saturated steam is supplied to the second jacket portion. It is preferable to adopt a configuration to do so.

  According to the present invention, in the above, the steam jacket is divided into a first jacket portion and a second jacket portion, a steam trap is provided in the second jacket portion, and superheated steam is supplied to the first jacket portion. It is preferable that superheated steam is also supplied to the second jacket portion.

  According to the present invention, in the above, a superheated steam generator and a temperature sensor for detecting the temperature of the heating kettle are provided, and the superheated steam generator sets the temperature of the heating kettle detected by the temperature sensor. It is preferable that the amount of heat supplied for generating the superheated steam can be controlled so as to reach the temperature.

  According to the present invention, the superheated steam is supplied to the steam jacket of the heating kettle, and the food is heated by the heated steam. Therefore, it is possible to heat with the superheated steam having a temperature higher than that of the normal saturated steam. In addition, it is only necessary to use a steam generator such as a general boiler to generate superheated steam, and it can easily cope with large-scale heating simply by adjusting the supply amount of superheated steam. With a simple configuration, a large amount of high-temperature objects can be heated.

  According to the present invention, the superheated steam supply path for heating and the exhaust steam discharge path after being used for heating are connected to the steam jacket of the heating kettle, and the pressure adjustment valve is provided in the discharge path. Resistance can be imparted to the flow of steam, so that it is possible to prevent a short path of steam from the supply path to the discharge path in the steam jacket and uneven temperature distribution inside the kettle.

  According to the present invention, the steam jacket is divided into the first jacket portion and the second jacket portion, and superheated steam is supplied to the first jacket portion and saturated steam is supplied to the second jacket portion. Thus, in the event that only a superheated steam can secure a high temperature, but the amount of heat is insufficient, the lack of heat can be compensated by saturated steam having a large amount of heat.

  According to the present invention, the steam jacket is partitioned into a first jacket portion and a second jacket portion, a steam trap is provided in the second jacket portion, superheated steam is supplied to the first jacket portion, and In the second jacket portion, the superheated steam is used for heating to release heat, and the state changes from steam to water. Sometimes a large amount of heat can be released, thereby supplying a large amount of heat to the heating kettle. The generated condensate can be discharged outside by a steam trap.

  According to the present invention, the superheated steam generator is capable of controlling the amount of heat supplied for steam generation so that the temperature of the heating kettle detected by the temperature sensor becomes the set temperature. Can be controlled appropriately.

  FIG. 1 shows a schematic configuration of a cooking apparatus as an embodiment of the heating apparatus of the present invention. Here, 11 is a heating pot for cooking food, and has a bottom portion 12 and an annular side portion 13 above the bottom portion 12. The heating pot 11 is provided with a steam jacket 14, which includes a bottom jacket chamber 15 provided at the bottom 12 of the pot, and an annular side jacket chamber 16 provided at the side 13 of the pot. It is divided into.

  A superheated steam supply pipe 17 and a steam discharge pipe 18 are connected to the bottom jacket chamber 15. The superheated steam supply pipe 17 supplies superheated steam 19 used for cooking to the bottom jacket chamber 15, and the steam discharge pipe 18 discharges steam used for cooking from the bottom jacket chamber 15. is there. The steam exhaust pipe 18 is provided with a pressure regulating valve 20 and a pressure gauge 21 for detecting the pressure in the steam exhaust pipe 18 closer to the bottom jacket chamber 15 than the pressure regulating valve 20.

  Further, a thermometer 22 for detecting the temperature of the bottom jacket chamber 15 is provided, and the thermometer 22 is an index for adjusting the temperature and supply amount of the superheated steam 19 supplied by the superheated steam supply pipe 17. Used to obtain A safety valve 23 is provided in the bottom jacket chamber 15.

  A saturated steam supply pipe 25 is connected to the side jacket chamber 16 so that the saturated steam 26 can be supplied to the side jacket chamber 16. The saturated steam supply pipe 25 is provided with a pressure reducing valve 27 and a pressure gauge 28 for detecting the pressure of the saturated steam after being decompressed by the pressure reducing valve 27. That is, the high-temperature and high-pressure saturated steam 26 is supplied through the saturated steam supply pipe 25, and the temperature of the saturated steam 26 can be lowered correspondingly by reducing the steam pressure by the pressure reducing valve 27. Yes. Thereby, the temperature of the saturated steam 26 supplied to the side jacket chamber 16 can be controlled. The side jacket chamber 16 is provided with a safety valve 29. Further, a drain pipe 30 is connected to the bottom of the side jacket chamber 16 for discharging condensate generated when the saturated steam is deprived of heat by being used for heating food. A steam trap 31 is provided at 30.

  In such a configuration, when food is cooked by the heating pot 11, the steam is generated in the bottom jacket chamber 15 of the steam jacket 14 by a steam generator such as a boiler (not shown) by the superheated steam supply pipe 17. Hot superheated steam 19 is supplied. Thereby, cooking at a higher temperature is possible than when cooking using normal saturated steam. Moreover, a large amount of ingredients can be cooked by supplying a certain amount or more of the superheated steam 19. For this reason, a large amount of high-temperature cooking can be performed with an inexpensive configuration.

  By using the high-temperature superheated steam 19 as a heat source for cooking as described above, for example, when stewed cooking is performed using the heating pot 11, it is more delicious than when stewed cooking is performed using saturated steam. Can be finished. The reason for this is not clear, but the stewed material should not be heated above the boiling point of the juice, but the portion in contact with the surface of the heating pot 11 is locally hot above the boiling point of the juice. It can also be considered that it is.

  Steam that has been deprived of heat by being used for cooking is discharged to the outside through a steam discharge pipe 18. At this time, since the pressure adjusting valve 20 is provided in the steam discharge pipe 18, resistance is given to the flow of steam in the steam discharge pipe 18, and therefore, the discharge pipe from the supply pipe 17 inside the bottom jacket chamber 15. It is possible to prevent the occurrence of a short vapor path to 18 and the non-uniform temperature distribution inside the pressurization pot 11. Thus, the inside of the pressure cooker 11 is uniform without using a complicated configuration such as providing a rectifying plate inside the bottom jacket chamber 15 with a simple configuration in which the pressure adjusting valve 20 is provided in the steam discharge pipe 18. Temperature distribution can be obtained. The pressure adjustment valve 20 can be manually operated while an operator looks at the instructions of the pressure gauge 21.

  As described above, it is possible to cook at a high temperature by supplying the superheated steam 19 to the heating kettle 11, but when the heat capacity is insufficient, the saturated steam supply pipe 25 is directed to the side jacket chamber 16. Thus, the saturated steam 26 having a larger amount of heat than the superheated steam may be supplied. The temperature of the saturated steam 26 can be controlled by adjusting the pressure by the pressure reducing valve 27. The saturated steam 26 changes its state from water vapor to water by releasing a large amount of heat in the side jacket chamber 16, and the condensate generated thereby is discharged to the outside through the steam trap 31 of the drain pipe 30. The

  In addition, it is also possible to provide the heating pot 11 with the stirring apparatus for stirring the cooking material inside as needed. By setting it as such a structure, a lot of cooking ingredients can be heated uniformly.

FIG. 2 shows a schematic configuration of a cooking apparatus according to another embodiment of the present invention. In the following, the same members as those shown in FIG. 1 are denoted by the same reference numerals, and differences from those of FIG. 1 will be mainly described.
That is, 35 is a superheated steam boiler, to which a superheated steam supply pipe 17 to the bottom jacket chamber 15 and a superheated steam supply pipe 36 to the side jacket chamber 16 are connected. The superheated steam supply pipe 17 is provided with a pressure gauge 37 for detecting the pressure of the superheated steam from the superheated steam boiler 35 and, for example, manually controlled based on the detected value by the pressure gauge 37, A pressure regulating valve 38 is provided for controlling the pressure of superheated steam supplied to the bottom jacket chamber 15.

  A temperature sensor 39 for detecting the temperature is provided in the bottom jacket chamber 15, and a signal line 40 from the temperature sensor 39 is connected to the superheated steam boiler 35 via a temperature indicating controller 41. The combustion amount of the superheated steam boiler 35 can be automatically controlled so that the temperature inside the bottom jacket chamber 15, that is, the temperature of the superheater 11 becomes the set temperature.

  The superheated steam supply pipe 36 has a pressure reducing valve 42 for reducing the pressure of the superheated steam supplied to the side jacket chamber 16 and a pressure of the superheated steam supplied from the pressure reducing valve 42 to the side jacket chamber 16. The pressure gauge 43 is provided.

  With such a configuration, the superheated steam from the superheated steam boiler 35 is supplied to the bottom jacket chamber 15 in a state adjusted to a predetermined pressure by the pressure regulating valve 38, whereby the cooking of the food is performed. . At this time, as described above, after setting the temperature of the superheater 11 and detecting the temperature of the bottom jacket chamber 15 by the temperature sensor 39, the combustion amount of the superheated steam boiler 35 is set so that the temperature becomes the set temperature. Can be controlled automatically. That is, the temperature for cooking can be easily set, changed, or adjusted in the superheated steam boiler 35.

  When steam is supplied to the side jacket chamber 16 as necessary, the pressure is reduced by the pressure reducing valve 42 to a predetermined pressure, and the temperature is lower than that generated in the superheated steam boiler 35 accordingly. Steam is fed from the supply pipe 36 into the side jacket chamber 16. In the side jacket chamber 16, the supplied superheated steam is used for cooking. Superheated steam thereby releases heat, and further changes its state from steam to water, releasing a large amount of heat at that time, thereby providing a large amount of heat for cooking. The generated condensate is discharged to the outside by the steam trap 31 of the drain pipe 30.

  With such a configuration, the superheated steam supplied to the side jacket chamber 16 can be used like saturated steam. For this reason, the same effect as when superheated steam and saturated steam are used in combination can be achieved with only the superheated steam boiler 35, that is, only with the heat source of the superheated steam.

  In addition, in the above, although the heating apparatus of this invention was demonstrated regarding the use of the heating cooking of a foodstuff, the heating apparatus of this invention can be applied also to the use of the heating of a chemical industrial product besides this, for example.

It is a figure which shows schematic structure of the cooking apparatus of embodiment of the heating apparatus of this invention. It is a figure which shows schematic structure of the cooking apparatus of other embodiment of the heating apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Heating pot 14 Steam jacket 15 Bottom jacket chamber 16 Side jacket chamber 17 Superheated steam supply pipe 18 Steam exhaust pipe 19 Superheated steam 20 Pressure control valve 25 Saturated steam supply pipe 31 Steam trap 35 Superheated steam boiler 39 Temperature sensor

Claims (5)

  A heating apparatus, characterized in that superheated steam for heating is supplied to the steam jacket in a heating kettle equipped with a steam jacket.   The steam jacket in the heating kettle equipped with a steam jacket is connected to a heating steam supply passage for heating and a discharge passage for exhaust steam after being used for heating, and a pressure regulating valve is provided in the discharge passage. A heating device characterized by.   The steam jacket is divided into a first jacket part and a second jacket part, and superheated steam is supplied to the first jacket part and saturated steam is supplied to the second jacket part. The heating device according to claim 1 or 2.   The steam jacket is divided into a first jacket portion and a second jacket portion, a steam trap is provided in the second jacket portion, superheated steam is supplied to the first jacket portion, and the second jacket portion is also provided. The heating apparatus according to claim 1 or 2, wherein superheated steam is supplied.   A superheated steam generator and a temperature sensor for detecting the temperature of the superheated steam in the heating kettle are provided, and the superheated steam generator is configured so that the temperature of the heating kettle detected by the temperature sensor becomes a set temperature. The heating device according to any one of claims 1 to 4, wherein a supply heat amount for generating superheated steam is controllable.

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