JP4022010B2 - Steam generator for grain cooking equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a steam generator for a grain cooking apparatus used in a sake production process or the like.
[0002]
[Prior art]
Conventionally, as this type of grain cooking apparatus, there is an apparatus described in Utility Model Registration No. 2504705, for example. This grain steaming device is provided with a sana plate having a number of small holes in the vicinity of the lower part in the body of the steamer. Is eccentrically supplied to the air-water separation chamber, and is diffused evenly below the sana plate through the air-water separation chamber, and the cereal is cooked with this steam.
[0003]
[Problems to be solved by the invention]
The conventional grain steaming apparatus supplies steam from the steam generating source eccentrically to the steam separating chamber disposed below the sana plate, so that the steam is evenly directed from the steam separating chamber to the sana plate. Although it is effective in preventing steaming unevenness, it has been difficult to maintain the temperature of the steam supplied to the grain to be steamed at a sufficiently high temperature.
[0004]
That is, in the case of the above-described grain steaming device, the steam is eccentrically supplied into the steam separation chamber, so that the steam supplied from the steam generation source stays in the steam separation chamber. During this time, the heat of the steam is taken away by the steam separation chamber, and when the steam is dispersed from the steam separation chamber, the heat energy of the steam is changed to kinetic energy. The temperature tends to decrease.
[0005]
According to the measurement by the present inventors, it has been found that the temperature of the steam supplied to the grain to be cooked on the sana plate is lowered to about 95 to 96 ° C. For this reason, the grains loaded on the sana plate cannot be cooked with sufficiently high temperature steam, and a temperature difference is likely to occur between the lower end and the upper end of the grain to be cooked. The excess moisture that is produced can result in a boiled grain (skin).
[0006]
Therefore, in order to supply steam at a sufficiently high temperature to the grain to be cooked, a steam tank containing water for generating steam is directly placed under the sana plate loaded with the grain, and the water in the steam tank is directly heated. It is also conceivable to generate steam by doing so.
[0007]
However, in this case, it is possible to supply high-temperature steam evenly. However, when the steam generated in the steam tank is directly supplied, the excess moisture contained in the steam seems to boil the grain. In addition, the worker may accidentally fall into a steam tank containing hot water during preparations for steaming the grain or scraping the steamed food. Yes.
[0008]
The present invention has been made against the background of the above-described conventional technology, and can uniformly supply to the grain to be steamed while maintaining the temperature of the steam, which is a disadvantage of the conventional apparatus, at a high temperature, and the skin is generated. The purpose of the present invention is to provide a steam generating device for a grain steaming device that can prevent the occurrence of danger and does not pose a danger to the operator.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention adopts a configuration in which steam is generated for a grain cooking apparatus that is disposed in a lower part of a grain container that contains a grain to be cooked and generates steam for steaming the grain. In the device
An apparatus main body containing water for generating steam and having an upper end opened, first heating means for heating water in the apparatus main body to generate steam, and a gas phase in the apparatus main body disposed parts, mainly the second heating means for heating the steam further, and a lid for closing except the opening of a predetermined width provided on the outer periphery of the upper opening near the device body Prepared,
The second heating means is inside the opening having the predetermined width and outside the first heating means, and extends from the height of the lid to the water in the apparatus body. Arranged along the circumference,
The lid body is provided in a state of being placed on the upper end portion of the second heating means .
[0010]
In addition, the configuration adopted by the present invention to achieve the above object is also used for a grain cooking apparatus that is disposed in a lower part of a grain container that contains a grain to be cooked and generates steam for steaming the grain. In the steam generator of
A device main body containing water for generating steam and having an upper end opened, and a tip portion of the apparatus main body submerged in the water stored in the device main body, and in the water in the device main body. a first heating means for ejecting the steam, is arranged in the gas phase portion in the apparatus main body, the outer peripheral edge and a second heating means for primarily further heat the steam, the top opening vicinity of the device body A lid that closes except for an opening of a predetermined width provided in the
The second heating means is inside the opening having the predetermined width and outside the first heating means, and extends from the height of the lid to the water in the apparatus body. Arranged along the circumference,
The lid body is provided in a state of being placed on the upper end portion of the second heating means .
[0011]
Furthermore, in the present invention, for example, the first and second heating means are configured to include a steam pipe to which steam is supplied from a steam generation source. As described above, when the first and second heating means are configured to be steam pipes to which steam is supplied from a steam generation source, the steam temperature is constant at about 100 ° C. In addition to being easy to control the temperature in the body, it is easy to handle. However, the present invention is not limited to this, and one or both of the first and second heating means may be constituted by an electric heater or the like.
[0012]
Moreover, when a part of said 2nd heating means is arrange | positioned in the water in an apparatus main body, a 2nd heating means can be made to contribute also to generation | occurrence | production of a vapor | steam, and the heat of a 2nd heating means is made. It can be used more effectively. Further, when the lid is provided in a state of being placed on the upper end portion of the second heating means, the steam retained in the apparatus main body is also heated by the second heating means. Can be further heated by the lid.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings.
[0014]
1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view of the same.
[0015]
1 and 2, reference numeral 1 denotes an entire grain cooking apparatus. The grain cooking apparatus 1 includes a steam tank 2 as a steam generator and a grain storage container 3. The main body 4 of the steam tank 2 has a cylindrical shape with an upper end 5 opened, is formed to a predetermined depth, and is configured to be installed on the floor surface via the legs 6. Of course, the steam tank body 4 may be configured to be embedded in the floor surface via a flange (not shown) provided on the outer peripheral surface thereof. Further, the steam tank body 4 has a double structure in which a vacuum layer or a heat insulating layer made of a heat insulating material is interposed in the middle, and it is possible to generate steam at a higher temperature with less heat dissipation and calorie loss. ing.
[0016]
Water 7 for generating steam is accommodated in the steam tank body 4 to a predetermined depth. A first steam pipe 8 serving as a first heating means is disposed inside the steam tank body 4. As the first steam pipe 8, for example, a stainless steel pipe having a diameter of 50 mm is used. Used. The first steam pipe 8 is piped so that its two base end parts 8a penetrate the vicinity of the upper end part of the steam tank body 1, and its intermediate part 8b is the inner surface of the steam tank body 1. Is extended downward. The front end portion 8c of the first steam pipe is horizontally arranged in a circular shape so as to be immersed in the water 7, and a plurality of small small holes 9 for jetting steam are formed on the upper end surface thereof. ing.
[0017]
Further, the gas phase portion 10 located on the water surface in the steam tank body 4 is heated by the heat of the first steam pipe 8 and the steam itself ejected from the tip 8c of the first steam pipe 8. A second steam pipe 11 is provided as second heating means for further heating and drying the steam generated by heating. As the second steam pipe 11, for example, a stainless steel circular pipe having a diameter of 50 mm is used similarly to the first steam pipe. Further, the second steam pipe 11 is piped so that the base end portion 11a penetrates in the vicinity of the upper end portion of the steam tank body 1 similarly to the first steam pipe 8, and the tip end side 11b is A pipe is spirally arranged at a predetermined pitch downward along the inner surface of the steam tank body 1. Further, the distal end portion 11c of the second steam pipe 11 is piped so as to be located in the water of the steam tank body 4, and is configured to contribute to heating of the water 7 for generating steam. It is not necessary to always supply steam to the second steam pipe 11, and steam may be intermittently supplied by detecting the temperature of the steam. Of course, the tip end portion 11c of the second steam pipe 11 may be configured to be positioned above the water surface without extending to the water in the steam tank body 4. The tip of the second steam pipe 11 is drawn out of the steam tank body 4 via a pipe (not shown). In the figure, reference numerals 12, 13 and 14 denote valves provided at the base end portions 8a and 11a of the first and second steam pipes, and the base end portions of the first and second steam pipes. 8a and 11a are connected to a steam generation source (not shown) via valves 12, 13, and 14.
[0018]
Further, a lid 16 is provided in the vicinity of the upper end opening 5 of the steam tank body 4 to close the outer periphery of the opening 5 leaving an opening 15 having a predetermined width. In this embodiment, the lid body 16 is detachably provided in a state of being placed on the upper end portion 11 b of the second steam pipe 11, and is mainly ejected from the distal end portion 8 c of the first steam pipe 8. The steam generated by being heated by the steam itself cannot be directed directly to the upper end opening 5 of the steam tank body 4 by being blocked by the lid body 16 and once stays in the gas phase section 10. Since it goes to the upper end opening 5 through the opening 15 having a predetermined width, it is inevitably brought into contact with the second steam pipe 11 so that the generated steam can be effectively secondary heated. ing.
[0019]
Furthermore, in this embodiment, since the lid body 16 is heated by the upper end portion 11b of the second steam pipe 11, it is heated mainly by the steam itself ejected from the front end portion 8c of the first steam pipe 8. The generated steam is also secondarily heated by the lid body 16. In the figure, 17 is a rib for reinforcing the lid 16, 18 is a drain pipe of the steam tank body 4, and 19 is a valve thereof.
[0020]
On the other hand, the grain container 3 arranged in a state of being placed on the upper part of the steam tank body 4 is formed in a cylindrical shape having both upper and lower ends opened to have a predetermined height. The grain container 3 is also configured in a double structure as required. An upper lid 20 is disposed at the upper end of the grain container 3 through a gap 21 through which steam escapes. Reference numeral 22 denotes a sana plate which is detachably attached by a locking portion 23 projecting near the lower portion in the grain container 3. The sana plate 22 is provided with a large number of small holes 24 over the entire surface thereof. ing. The said sana board 22 is arrange | positioned in the position of 150 mm from the lower end part of the grain container 3, for example. Reference numeral 25 denotes a partition wire mesh that is detachably attached by an engaging portion 26 protruding from the upper portion of the sana plate 22 in the grain container 3, and the partition wire mesh 25 has a metal wire at a predetermined pitch. It is knitted in a grid pattern. The partition wire mesh 25 is disposed, for example, at a position 50 mm above the Sana plate 22.
[0021]
Thus, by arranging the Sana plate 22 at a position as high as about 150 mm from the lower end of the grain container 3, it becomes difficult for moisture from the steam tank body 4 to go to the grain, and it is effective in preventing skin rice. There is. In addition, by arranging the partition wire mesh 25 on the upper part of the sana plate 22, moisture is not stored between the partition wire mesh 25 having a very high open rate and the cloth for storing the grain, so Good steaming with little difference in water content between the top and bottom is possible.
[0022]
In this embodiment, as shown in FIG. 3, a partition 27 for partitioning a space formed below the sana plate 22 into a plurality of parts is disposed under the sana plate 22 and the partition. 27 may be provided with a suitable number of through holes 28 of appropriate diameter so that the steam is jetted out of the sana plate 22 on average. The through holes 28 formed in this partition 27 actually diffuse the steam, The size and number may be determined depending on the state, and unnecessary through-holes 28 may be closed using bolts or the like as necessary.
[0023]
Furthermore, in this embodiment, as shown in FIG. 4, the partition wire mesh 25 is divided into two semicircular shapes, and the two divided semicircular partition wire meshes 25 have a predetermined thickness. The metal wires 29 are knitted in a grid pattern at a predetermined pitch so as to have large openings 30 and are partitioned into a plurality of spaces by partitions 31.
[0024]
Note that the shapes of the first and second steam pipes 8 and 11 are not limited to those described above, and can be appropriately formed as necessary. Moreover, the shape of the steam tank main body 4 can be made into the same rectangular shape as a conventional product, or any other appropriate shape as necessary.
[0025]
An example of the device of the present invention configured as described above cooks grains as follows.
[0026]
That is, in the grain cooking apparatus 1, first, the grain container 3 is placed on the upper part of the steam tank main body 4 that contains the water 7 up to a predetermined position, and the sana plate 22 and the partition plate 22 are partitioned in the grain container 3. After attaching the wire mesh 25 and loading the grain to be cooked (not shown) on the partition wire mesh 25, the grain container 3 is substantially sealed by the upper lid 20, and the valves 12 of the first and second steam pipes 8 and 11 are sealed. , 13 and 14 are opened, and steam is supplied to the first and second steam pipes 8 and 11 from a steam supply source (not shown).
[0027]
The steam supplied to the first steam pipe 8 heats the first steam pipe 8 and is accommodated in the steam tank body 4 from the small hole 9 of the tip 8a formed on the circle. It is ejected into the water 7 for generating steam, the water in the steam tank body 4 is heated and boiled to generate steam, and a part thereof is directly injected into the gas phase part 10 in the steam tank body 4 as steam. Is done.
[0028]
Next, the steam generated from the water 7 heated and boiled by the first steam pipe 8 and the steam generated by the steam jetted upward from the small hole 9 of the first steam pipe 8 are steam. It is further heated by the 2nd steam piping 11 arrange | positioned in the gaseous-phase part 10 of the tank main body 4, and is dried. That is, the steam is not supplied as it is from the opening 5 of the steam tank body 4 to the grain container 3 but is retained by the lid 16 disposed at the upper end of the steam tank body 4, and the second steam pipe In the state where the pressure is further increased by the pressure 11, the particles are equally supplied to the grain container 3 from the opening 15 provided between the outer peripheral edge of the lid 16 and the inner surface of the steam tank main body 4. In the measurement by the present inventors, the temperature of the steam supplied from the opening 15 provided between the outer peripheral edge of the lid body 16 and the steam tank body 4 has reached 102 ° C.
[0029]
The steam supplied to the grain container 3 is evenly diffused from the outer peripheral portion toward the space formed on the lower surface of the sana plate 22. When the partition 27 is disposed below the sana plate 22, the through-hole 28 whose size and number are adjusted as described above is formed in the partition 27. As a result, steam spreads uniformly in the space formed in the upper surface of the sana plate 22, so that the steam diffused downward from the sana plate 22 passes through the small holes 24 provided in the sana plate 22 from the entire surface of the sana plate 22. It flows toward.
[0030]
Furthermore, in this embodiment, the partition wire mesh 25 is disposed above the sana plate 22 at a predetermined distance, so that the steam flowing upward from the entire surface of the sana plate 22 is separated from the partition wire mesh 25. Through the mesh-shaped opening 30, the grain flows from the entire surface of the partition wire mesh 25 toward the unillustrated grain loaded, and therefore the grain is steamed without causing steaming unevenness due to sufficiently high-temperature steam. Will be.
[0031]
After cooking is completed as described above, the grain container 3 may be removed while being lifted from the steam tank body 4, and the grain on the partition wire mesh 25 may be taken out by appropriate means.
[0032]
In this embodiment, since the lid body 16 is provided in the upper end opening 5 of the steam tank main body 4, the steam generated from the water 7 heated and boiled by the first steam pipe 8 is effectively prevented. In addition to being able to perform secondary heating, there is a risk that the operator may accidentally fall into the steam bath body 4 containing hot water during preparation for steaming the grain or scraping the steamed food. It can be lost.
[0033]
Further, the device of the present invention can take a form other than the embodiment described above. For example, a sana plate or a partition wire mesh can be detached from the side surface or the lower surface of the grain container, and steamed. You may make it take out the grain from the bottom.
[0034]
【The invention's effect】
As described above, according to the present invention, the steam can be evenly supplied to the grain to be cooked while maintaining the temperature of the steam at a high temperature, and it is possible to prevent the occurrence of skin rice. It is possible to provide a steam generating device for a grain cooking device that does not pose a danger to the food.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an example of an embodiment of the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a perspective view of a partition plate disposed under the Sana plate.
FIG. 4 is a perspective view of a partition wire mesh.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Grain cooking apparatus 2 Steam tank 3 Grain storage container 4 Steam tank main body 5 Opening part 7 Water 8 1st steam piping 10 Gas phase part 11 2nd steam piping 22 Sana plate

Claims (3)

In a steam generating device for a grain cooking device, which is arranged at the lower part of a grain storage container containing a grain to be cooked and generates steam for steaming the grain,
An apparatus main body containing water for generating steam and having an upper end opened, first heating means for heating water in the apparatus main body to generate steam, and a gas phase in the apparatus main body disposed parts, mainly the second heating means for heating the steam further, and a lid for closing except the opening of a predetermined width provided on the outer periphery of the upper opening near the device body Prepared,
The second heating means is inside the opening having the predetermined width and outside the first heating means, and extends from the height of the lid to the water in the apparatus body. Arranged along the circumference,
The said steam generator is provided in the state mounted in the upper end part of the 2nd heating means, The steam generator for grain steaming apparatuses characterized by the above-mentioned . In a steam generating device for a grain cooking device, which is arranged at the lower part of a grain storage container containing a grain to be cooked and generates steam for steaming the grain,
A device main body containing water for generating steam and having an upper end opened, and a tip portion of the apparatus main body submerged in the water stored in the device main body, and in the water in the device main body. a first heating means for ejecting the steam, is arranged in the gas phase portion in the apparatus main body, the outer peripheral edge and a second heating means for primarily further heat the steam, the top opening vicinity of the device body A lid that closes except for an opening of a predetermined width provided in the
The second heating means is inside the opening having the predetermined width and outside the first heating means, and extends from the height of the lid to the water in the apparatus body. Arranged along the circumference,
The said steam generator is provided in the state mounted in the upper end part of the 2nd heating means, The steam generator for grain steaming apparatuses characterized by the above-mentioned .  The steam generator for a grain steaming apparatus according to claim 1 or 2, wherein the first and second heating means comprise steam pipes to which steam is supplied from a steam generating source.

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