JPH0464321A - Cooking device - Google Patents

Abstract

PURPOSE:To use fully volume of a cooking container and to improve heat efficiency by communicating a jacket-shaped cylindrical partition which stands along an outer periphery of a movable heat reflector and an inner periphery of a housing with the cooking container at a position higher than a liquid level and providing a liquid supply pipe to communicate with the inside of the partition from its lower part. CONSTITUTION:Of all cooking time from cooking start to cooking finish, the first 30 to 40% from the start is a time when necessary received heat volume of a cooking container 21 is the largest. Therefore, during this time, a movable heat reflector 44 is raised up to its highest position, so that heat given to the movable heat reflector 44 is given to the cooking container 21 as a radiated heat source. After that, when the necessary received heat volume becomes small, the movable heat reflector 44 is moved downward to release surrounding of the cooking container 21 and the heat is absorbed and accumulated by a jacket-shaped cylindrical partition 19a, so that, at a next cooking time, thus accumulated heat can be utilized effectively as the necessary received heat volume during an initial cooking time by supplying liquid within the partition 19a to the cooking container 21 through a liquid supply pipe 43.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a cooking device, and relates to a cooking device suitable for cooking noodles and long-cooking foods such as fried chicken using osmotic pressure. It is something that will take place.

(Prior Art) As shown in FIGS. 5 to 7, a conventional cooking device includes a cooking container 7 in which a housing 1 incorporates a heat exchange section 3 consisting of a combustion chamber 3a of a combustor 5 and an exhaust pipe 3b. The air supply fan 5a of the combustor 5 and the air supply muffler 5b are installed in the lower space of the cooking container 7, and the wire mesh container 9 placed in the whirlpool of the hot liquid in the cooking container 7 is covered. It was used to heat and cook food.

(Problem to be Solved by the Invention) However, in such a conventional cooking device, the piping for the heat exchange section 3 is provided inside the cooking container 7, and this piping is arranged in a meandering manner inside the cooking container 7 in order to increase thermal efficiency. Because of this arrangement, the volume of the cooking container 7 that can be used for cooking is narrowed, and if the cooking volume is sufficient, the thermal efficiency not only decreases, but also the cooking container 7 has to be larger. There was a point.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional drawbacks, it is an object of the present invention to provide a cooking device that can fully utilize the volume of a cooking container and has good thermal efficiency.

(Means for solving problems) The present invention will be described in detail to achieve the above object.

The invention according to claim 1 provides a cooking device comprising a cooking container supported within a housing and a heat supply port disposed below the cooking container toward the inside of the housing. A movable cylindrical space is formed on the outer periphery of the cooking container in which the heating fluid flowing in from the mouth swirls and rises, and is movable between a position surrounding the cooking container and a position releasing the surrounding. a heat reflector, a jacket-shaped cylindrical partition along the outer periphery of the movable heat reflector and the inner periphery of the housing, and communicate the partition and the cooking container at a position higher than the liquid level in the cooking container. The cooking device according to the invention according to claim 2 is characterized in that the cooking device is provided with a communication pipe for supplying liquid into the partition wall from a lower part thereof, and a liquid supply pipe for supplying liquid into the partition wall from a lower part thereof. A cooking chamber in which is housed, and a small-diameter protruding chamber that projects downward from the bottom plate of the cooking chamber,
A small-capacity annular space and a large-capacity annular space are formed on the outer periphery of the cooking chamber and the outer periphery of the small-diameter protrusion chamber, respectively, into which the heating fluid that has flowed in from the heat-donating port is introduced, and the heat-donating port is connected to the small-diameter projecting chamber. The cooking device according to the invention according to claim 3 is characterized in that the protruding chamber is oriented substantially tangentially to the outer periphery of the protrusion chamber, and the cooking device has an annular space in which the heating fluid flowing from the heat supply port rises while swirling. a liquid supply tank formed on the outer periphery of the cooking container and arranged above the cooking container; a heat transfer tube arranged in the tank; It is characterized by providing an inlet for introducing the liquid into the heat exchanger tube, and a liquid supply pipe for feeding the liquid in the tank into the cooking container.

(Function) In the present invention as set forth in claim 1, the liquid in the cooking container requires a large amount of heat to be received during the first 30 to 40% of the cooking time from the start to the completion of cooking. Focusing on this, a movable heat reflector surrounds the outer periphery of the cooking container, and the heat given to the movable heat reflector is applied to the cooking container as a radiant heat source. Thereafter, when the required amount of heat received by the liquid in the cooking container decreases, the movable heat reflector is moved and removed from the cooking container to release the enclosure, and the jacket-shaped cylindrical partition wall absorbs and stores the heat. At the next cooking time, the liquid in the partition wall is sent to the cooking container through the communication pipe and used as the necessary heat during the initial cooking time, increasing thermal efficiency and preventing the liquid in the cooking container from becoming contaminated. When the liquid from inside the bulkhead replaces the liquid in the cooking container,
To keep the liquid in the cooking container clean. In addition, since the heating fluid rises while swirling in the annular space around the outer periphery of the cooking container and exchanges heat with the liquid in the cooking container,
There is no need to install extra items inside the cooking container, and the entire inside of the cooking container can be effectively used for the food to be cooked.

In the case of the present invention according to claim 2, the cooking container includes a cooking chamber in which the food to be cooked is accommodated, and a small-diameter protruding chamber connected to the cooking chamber, and the heat supply port is connected to the small-diameter protruding chamber. Since the direction is approximately tangential to the outer periphery, the high temperature and large volume heating fluid immediately after being introduced from the heat supply port becomes a swirling flow in the large volume annular space on the outer periphery of the small diameter protruding chamber of the cooking container. The liquid gradually rises and transfers its heat to the liquid in the cooking container, reaching the outer periphery of the cooking chamber of the cooking container, where it gradually rotates at high speed in a small annular space around the outer periphery of the cooking chamber. During this time, heat is efficiently transferred to the liquid in the cooking container, and the volume of the cooking container can be used effectively.

In the present invention according to claim 3, the heat transfer tube is arranged in a tank for supplying liquid arranged above the cooking container, and after the heat transfer tube is introduced from the heat supply port and rises through the outer periphery of the cooking container. A heating fluid is introduced into the heat transfer tube through the inlet to raise the temperature of the liquid in the tank, and the liquid is sent to the cooking container through the liquid supply pipe for use, and the heat supply port Since the heating fluid flowing into the cooking container rises while swirling in the annular space formed around the outer periphery of the cooking container, heat can be efficiently absorbed into the liquid in the cooking container.

(Example) Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially omitted vertical cross-sectional view showing a cooking device according to a first embodiment of the present invention, and FIG. 2 is a partially cutaway view thereof.

The cooking device includes a cooking container 21 supported by a cylindrical housing 13 and housed within the housing 13;
1 and a heat supply port 60a of a burner 60 disposed inside the housing 13 in a direction tangential to the outer circumference of the small-diameter protruding chamber 23 of the cooking container 21.

The cooking device also has a highest position that surrounds the entire outer periphery of the cooking container 21, which is indicated by a chain double-dashed line in FIG. ) and the lowest position (indicated by a solid line in FIG. 1) at which the enclosure is released. A jacket-shaped cylindrical partition wall 19a along the
a pouring pipe 43 as a communication pipe that communicates the cooking container 21 with the cooking container 21 at a position higher than the liquid level in the cooking container 21, and a liquid supply pipe 1 that supplies liquid into the partition wall 19a from the lower part thereof.
9b is provided, and an annular space 39.4 in which the combustion exhaust gas, which is the heating fluid generated in the burner 60, rises while swirling.
0 is formed on the outer periphery of the cooking container 21.

The housing 13 consists of a lower chamber 17 that accommodates the movable heat reflector 44 when it is lowered, and one upper chamber that accommodates the cooking container 21. It passes through the chamber 17, penetrates the bottom plate 17a, and is led out to the outside. A liquid take-out valve 37 is connected to the liquid take-out pipe 35 outside the housing 13.

One upper chamber accommodates a cooking container 21 supported by a support plate 15 fixed to the upper end, and has a jugget-shaped liquid-cooled partition wall 1 that surrounds the entire outer periphery of the cooking container 21 along the inner surface.
9a, and the upper part of this partition wall 19a and the cooking chamber 27 of the cooking container 21 communicate with each other at a position higher than the liquid level in the cooking container 21 through a pouring pipe 43 as a communication pipe.

A liquid supply pipe 19b communicating with the lower part of the partition wall 19a is provided, and a short conduit 14 passing through the upper side plate of the housing 13 and having a horizontal inlet is provided.

The cooking container 21 includes a small-diameter protruding chamber 23 that protrudes downward at the center of the bottom plate 27a of the cooking chamber 27, and the upper end of a liquid extraction pipe 35 communicates with the lower end of this small-diameter protruding chamber 23, so that the cooking chamber 27
The lid body 29 and its upper lid mounting are the tool 31 and the temperature control valve 3.
3, and a lid body 29 that can be opened and closed is attached using a tool 31.
It can be firmly fixed by pressing it.

The movable heat reflector 44 is made of a cylindrical refractory material or ceramics, and is moved up and down by a vertical movement drive mechanism 50, so that the lower chamber 1
7 and the upper chamber 19 can be freely accessed. The vertical movement drive mechanism 50 has a recess 8 under the floor in a symmetrical arrangement W in FIG.
A pair of servo motors 54 and 54 provided in the lower chamber 1
7, and a pressure fluid generation prime mover 55 housed in the equipment room 18 adjacent to 7, and a pipe 55a from the prime mover 55
The lifting rod 54a passing through the bottom plate 17a is driven by the pressure fluid sent through the lifting rod 54a.
The movable heat reflector 44 supported at the upper end of the movable heat reflector 44 is raised and lowered.

The burner 60 is connected to a blower 62 housed in the equipment room 18.
Combustion air is sent from the air pipe 61 through the air supply pipe 61, and the heat supply ports 60a for combustion exhaust gas, which is generated by combustion of fuel and becomes a heat source, are oriented substantially tangentially to the outer periphery of the small-diameter protrusion chamber 23, so that the heat supply ports 60a are connected to each other on the front and back sides. It is placed horizontally in two symmetrical locations.

The cooking apparatus according to the first embodiment of the present invention includes an equipment room 18.
A liquid supply device 64 is provided directly above the.

The liquid supply device 64 includes a tank 65 into which liquid is to be supplied to the cooking container 21, and a heat transfer tube 68 which is arranged by making several U-turns upward in the tank 65. One end of a heat transfer tube 68 is connected to the tip of the short connecting tube 14 that passes through the upper part of the housing 13 .

The other end of the heat transfer tube 68 is opened to the outside from the top of the tank 65, and the annular space 39, 40 on the outer periphery of the cooking container 21
After passing through, the combustion exhaust gas passes through the inside and is discharged from the exhaust port 69.

In addition, the liquid supply device 64 has a liquid supply pipe 65a connected to the lower part thereof for supplying liquid from outside the apparatus, and a base end of a liquid supply pipe 70 with a cock 70b having an on-off valve 70a communicating with the side surface of the tank 65. There is. With the lid 29 of the cooking container 21 open,
The tip of the opening/closing stopper 70a is rotatable between a position above the container 21 and a position removed from the container 21, so that liquid can be supplied into the cooking container 21 using the liquid supply pipe 70. Furthermore, the liquid supply device 64 includes a hot liquid pipe 72 that is connected to the middle part of the tank 65 and the upper end of the partition wall 19a.
2, hot liquid can be exchanged between the inside of the tank 65 and the inside of the partition wall 19a as needed.

Next, the operation of the cooking device according to the first embodiment will be explained.

The high-temperature combustion exhaust gas immediately generated by the burner 60 becomes a swirling flow in the annular space 39 on the outer periphery of the small-diameter protruding chamber 23, gradually rises while exchanging heat with the liquid in the cooking container 21, and reaches the cooking chamber 27. , an annular space 40 around the outer periphery of this cooking chamber 27
The flow becomes a high-speed swirling flow, gradually rises while efficiently exchanging heat with the liquid in the cooking container 21, passes through the short continuous pipe 14, passes through the heat transfer pipe 68 in the liquid supply device 64, and exits from the exhaust port 69. During this time, the liquid in the tank 65 of the liquid supply device 64 is heated. During the first 30 to 40% of the total cooking time from the start to the end of cooking, the amount of heat required to be received by the cooking container 21 is large, so the movable heat reflector 44 is raised to the highest position. The heat given to the movable heat reflector 45 is given to the cooking container 21 as a radiant heat source.

Thereafter, when the required amount of heat received by the cooking container 21 becomes smaller, the movable heat reflector 44 is moved downward to release the surrounding of the cooking container 21, and the jacket-shaped cylindrical partition wall 19a is removed.
It absorbs heat and stores it, and then pours it into the pouring pipe 4 for the next time cooking.
3, the liquid within the partition wall 19a is sent to the cooking container 21 to effectively utilize it as the amount of heat required during the initial cooking time.

When the liquid in the cooking container 21 becomes contaminated with the food to be cooked, the liquid is taken out from the cooking container 21 through the liquid take-out pipe 35 by opening the liquid take-out valve 37, and then from the liquid supply device 64 through the liquid supply pipe 70 or through the partition wall. Liquid is supplied from inside 19a through the pouring pipe 43, and the liquid is supplied to the liquid supply pipe 65a and the liquid supply pipe 1, respectively.
The tank 65 of the liquid supply device 64 and the partition wall 19a are replenished with cold liquid through 9b. Inflow pipe 43 from partition wall 19a
If the amount of overflow from the liquid supply pipe 65a and the amount of inflow from the liquid supply device 64 through the liquid supply pipe 65a are balanced with the amount discharged from the liquid take-out pipe 35, high-speed continuous cooking can be always performed using the clean liquid.

FIG. 3 is a partially longitudinal side view showing a second embodiment of the present invention.

In addition to the movable heat reflector 44 in the first embodiment, the cooking device according to the second embodiment includes a second movable heat reflector 45 adapted to the lower outer periphery of the cooking container 21, and the liquid supply device is omitted. In this case, other parts that are the same as those in the first embodiment are designated by the same reference numerals, and detailed explanations of those parts will be omitted.

The second movable heat reflector 45 includes a container-shaped small-diameter heat reflector 46 that surrounds the small-diameter protruding chamber 23 of the cooking container 21, and a cylindrical large heat reflector that surrounds the cooking chamber 27 of the cooking container 21 together with its bottom plate 27a. The vertical part 35 passes through the small diameter heat reflection part 46 and moves up and down by the vertical movement drive mechanism 52 arranged together, and enters and exits into and out of the lower chamber 17 and one upper chamber. It's free.

This vertical movement drive mechanism 52 has an elevating rod 56a that supports the center of the lower surface of the small-diameter heat reflector 46 and penetrates the bottom plate 17a of the lower chamber 17, and drives the second movable heat reflector 45 using servo motors 56 arranged together. It is driven up and down by pressure fluid sent from the prime mover 55.

When the movable heat reflector 45 is at the highest position, the small diameter heat reflector 46 surrounds the small diameter protrusion chamber 23, the large diameter heat reflector 47 surrounds the cooking chamber 27, and when it is at the lowest position, most of the movable heat reflector 45 surrounds the small diameter protruding chamber 23. A small diameter protruding chamber 23 and a cooking chamber 27 are housed in the lower chamber 17.
It's out of place.

In the cooking device according to the second embodiment, the first 30 to 40% of the total cooking time from the start to the end of cooking is
During the period of time, only the movable heat reflector 44 is raised and the cooking chamber 2 is closed.
7, and then when the required amount of heat in the cooking chamber 27 decreases, the movable heat reflector 44 is lowered and the second movable heat reflector 45 is raised to allow the partition wall 19a to absorb heat, and the partition wall 1
A sufficient amount of heat is imparted to the liquid in 9a, and the accumulated heat can be used for the next cooking.

FIG. 4 is a partially longitudinal side view showing a third embodiment of the present invention.

The cooking device according to the third embodiment is equipped with both the second movable heat reflector 45 and the liquid supply device 64, and is able to utilize heat even more effectively. The points are the same as those in the first embodiment and the second embodiment, and the same parts are indicated by the same reference numerals.

In the cooking device according to the third embodiment, when hot liquid is required only from the liquid supply device 64, the movable heat reflector 44 and the second movable heat reflector 45 are operated by the vertical movement drive mechanism 51, 52. With the inner surface of the partition wall 19a and the outer surface of the cooking container 21 covered, heat is absorbed from the heat transfer tube 68 of the liquid supply device 64,
The hot liquid in the liquid supply device 64 can be supplied to a necessary location through the liquid supply pipe 70 for use.

Note that the present invention is not limited to the above-described embodiments, and only one of the movable heat reflector 44 and the second movable heat reflector 45 may be provided, and the partition wall 19a and the second movable heat reflector 45 may be provided. Each movable heat reflector 44, 45 may have a shape other than a cylinder, for example, a polygonal cylinder, and inert pressure gas is supplied from a cylinder (not shown) to the gas phase side of the cooking container, that is, the space between the liquid level and the lid. It can also be used to cook boiled noodles at a low temperature of about 423 to 433 K (150 to 160 degrees Celsius) under a predetermined pressurized state, for example, 245 x 10' Pa (2.5 kg/7). In addition to the steamer, it can also be applied to steamers, oil cooking machines, etc., and the burner can be provided in one place or in three or more places, and various other modifications are possible without changing the gist.

(Effects of the Invention) In the cooking device according to claim (1) of the present invention, the liquid in the cooking container receives a large amount of heat during a predetermined period in the first half of the cooking time from the start to the completion of cooking. If necessary, a movable heat reflector can surround the outer periphery of the cooking container, and the heat applied to the movable heat reflector can be applied to the cooking container as a radiant heat source. After that, when the required amount of heat received by the cooking container becomes smaller, the movable heat reflector is moved downward to release the enclosure of the cooking container, and the jacket-shaped cylindrical partition wall absorbs and stores the heat. At the next cooking time, the liquid in the partition wall is sent to the cooking container through the communication pipe and used as the necessary heat during the initial cooking time, thereby increasing thermal efficiency and reducing the amount of liquid in the cooking container. When contaminated, it is possible to replace the liquid in the cooking vessel with liquid from within the septum to keep the liquid in the cooking vessel uncontaminated. In addition, the heating fluid introduced from the heat supply port swirls in the annular space around the cooking container and rises while contacting the cooking container, exchanging heat with the liquid in the cooking container and heating it. There is also the advantage that there is no need to install extra items inside the cooking container, and the inside of the cooking container can be effectively used for the food to be cooked.

In the cooking device according to claim (2), the heat supply port is oriented substantially tangentially to the outer periphery of the small-diameter protruding chamber of the cooking container, so that the heating fluid swirls around the outer periphery of the cooking container and flows around the outer periphery. Efficiently exchanges heat with the liquid in the cooking container while in contact,
A small-capacity annular space and a large-capacity annular space are formed on the outer periphery of the cooking chamber and the outer periphery of the small-diameter protruding chamber, respectively, of the cooking container, so that the high-temperature heating fluid immediately after flowing from the heat supply port is transferred to the large-volume annular space. As it becomes a swirling flow in the annular space, it gradually rises and reaches the small volume annular space while exchanging heat with the liquid in the cooking container.The heating fluid becomes a high speed swirling flow in the small volume annular space and gradually rises. Since the liquid rises and exchanges heat with the liquid in the cooking container, thermal efficiency is extremely high and the inside of the cooking chamber can be used effectively.

In the cooking device according to claim (3), the heat transfer tube is arranged in a liquid supply tank arranged above the cooking container,
The heating fluid that has risen through the outer periphery of the cooking container is introduced into the heat transfer tube through the inlet to raise the temperature of the liquid in the tank, and the liquid is sent into the cooking container through the liquid supply pipe. The heat of the heating fluid can be used effectively, and
Since the heat-giving fluid flowing in from the heat-donating port rises while swirling in the annular space formed around the outer periphery of the cooking container, it is effective in efficiently absorbing heat from the liquid in the cooking container.

[Brief explanation of the drawing]

FIG. 1 is a partial longitudinal sectional side view showing the main parts of a cooking device according to the first embodiment of the present invention, FIG. 2 is a partially cutaway plan view showing the main parts, and FIG. FIG. 4 is a partially longitudinal side view showing a cooking device according to a third embodiment of the present invention, and FIG. 5 is a partially longitudinal side view showing a conventional cooking device. FIG. 6 is a sectional view, FIG. 6 is a plan view, and FIG. 7 is a diagram showing the principle of operation. 13...Housing, 14...Short conduit (inlet),
17... Lower chamber, 19... Upper chamber, 19a... Partition wall, 19b... Liquid supply pipe, 21... Cooking container, 23
... Small diameter protruding chamber, 27... Cooking room, 39.40...
・Annular space, 43...Inflow pipe (communication pipe), 44・
...Movable heat reflector, 45...Second movable heat reflector, 4
6...Small diameter heat reflecting section, 47...Large diameter heat reflecting section, 50
．． 52... Vertical drive mechanism, 60... Burner, 61
a...Heat supply port, 64...Liquid supply device, 65...Tank, 68...Heat transfer tube. Figure 1

Claims (3)

[Claims] (1) In a cooking device equipped with a cooking container supported in a housing and a heat supply port disposed below the cooking container toward the inside of the housing, heat is supplied from the heat supply port. a cylindrical movable heat reflector forming an annular space around the outer periphery of the cooking container in which the fluid rises while swirling, and being movable between a position surrounding the cooking container and a position releasing the surrounding; a jacket-shaped cylindrical partition along the outer periphery of the movable heat reflector and the inner periphery of the housing; a communication pipe that communicates the partition with the cooking container at a position higher than the liquid level in the cooking container; A cooking device characterized in that a liquid supply pipe is provided for supplying liquid into the partition wall from the lower part thereof. (2) In a cooking device comprising a cooking container supported within a housing and a heat supply port disposed below the cooking container toward the inside of the housing, the cooking container includes a It comprises a cooking chamber in which things are stored, and a small diameter protruding chamber that projects downward from the bottom plate of the cooking chamber,
A small-capacity annular space and a large-capacity annular space are formed on the outer periphery of the cooking chamber and the outer periphery of the small-diameter protrusion chamber, respectively, into which the heating fluid that has flowed in from the heat-donating port is introduced, and the heat-donating port is connected to the small-diameter projecting chamber. A cooking device characterized in that the protruding chamber is oriented substantially tangentially to the outer periphery of the protruding chamber. (3) In a cooking device equipped with a cooking container supported in a housing and a heat supply port disposed below the cooking container toward the inside of the housing, heat is supplied from the heat supply port. An annular space in which the fluid rises while swirling is formed on the outer periphery of the cooking container, a liquid supply tank disposed above the cooking container, a heat transfer tube disposed within the tank, and a heat transfer tube disposed within the tank; It is characterized by being provided with an inlet for introducing the heating fluid into the heat transfer tube after rising through the outer periphery of the container, and a liquid supply pipe for feeding the liquid in the tank into the cooking container. cooking equipment.