JP5618621B2 - Pressurized superheated steam cooker - Google Patents

Description

  The present invention relates to a pressurized superheated steam cooker that performs cooking in a pressurized state with superheated steam.

  As disclosed in Japanese Patent Application Laid-Open No. 3-68313 (Patent Document 1), as an appliance for cooking an object to be heated while applying pressure, water and a cooked product are placed in a pressure cooker and heated with a microwave. There are cooking utensils.

  In the cooking utensil disclosed in the above-mentioned Patent Document 1, water is put below the mounting portion of the pressure cooking pan of the cooking utensil body composed of a pressure cooking pan and a sealing lid, and the food is placed on the mounting portion. Mount the sealing lid. And this cooking appliance main body is accommodated in the cooking part of a microwave oven, and the switch of a microwave oven is turned on. Then, the microwave irradiated from the outside of the pressure cooker penetrates into the pressure cooker formed of a microwave permeable material with almost no absorption loss, and the cooked food in the pressure cooker is removed. Heat from inside.

  At the same time, the water in the pressure cooker is boiled and evaporated by the microwave that has penetrated into the pressure cooker, the steam that has boiled and evaporated fills the pressure cooker and the cooking utensil body is pressurized, It is adjusted to a predetermined pressure by the internal pressure control valve to prevent evaporation of moisture from the cooked food. In this way, the occurrence of wrinkles in the skin of the cooked product is prevented, and the loss of appearance and beauty is eliminated. Moreover, the cooking time can be shortened by using the microwave.

  However, in the conventional cooking utensil disclosed in Patent Document 1, the heat source for heating the cooked food is microwave until the tiredness, and the steam obtained by boiling and evaporating the water in the pressure cooker is from the cooked food. It is for preventing the evaporation of moisture, and has only an auxiliary function in the cooking of the cooked food. Therefore, there is a problem that steam cooking and stewed cooking cannot be performed with steam obtained by evaporating water in the pressure-resistant pan.

  Furthermore, the steam used auxiliary during cooking is generated by indirectly heating the water put in the pressure-resistant pan of the cooking utensil body by microwaves. Therefore, although the boiling and evaporated steam fills the pressure-resistant pan, it is not heated further and cannot be superheated steam. Therefore, there is a problem that the cooking utensil cannot obtain a moist finish while baking the cooked food with superheated steam.

  In addition, in the cooking utensil disclosed in the above-mentioned Patent Document 1, in order to generate pressurized superheated steam, the amount of heat is insufficient with only the microwave, and the steam in the cooking utensil body is put into the cooking chamber of the microwave oven. It is necessary to install a heater for heating and to heat the cooking utensil body from the outside of the cooking utensil body. However, in that case, the heater will indirectly heat the water and steam in the cooking utensil body, to secure a large amount of water for obtaining superheated steam, and to obtain a large heat capacity, There is a problem that it is necessary to increase the capacity of the cooking utensil body. Moreover, there is also a problem that the cooking time becomes longer than when the food is directly heated by the microwave.

  Furthermore, since water is contained in the cooking utensil body in advance, there is a problem that it is impossible to control the amount of water and the intake / exhaust operation according to the contents of cooking during cooking.

Japanese Patent Laid-Open No. 3-68313

  Then, the subject of this invention is providing the pressurized superheated steam cooker which can heat-cook a to-be-heated material in a pressurized state with superheated steam.

In order to solve the above problems, the pressurized superheated steam cooker of the present invention is
A heating chamber for cooking,
A cooking container for performing cooking by heating with pressurized superheated steam while being placed in the heating chamber and supplied with pressurized superheated steam from outside the heating chamber;
A pressurized superheated steam generating device that is installed outside the heating chamber and generates pressurized superheated steam;
While being attached to the heating chamber, the connecting member of the cooking vessel disposed in the heating chamber is detachable, and when the connecting member is attached, the pressurized superheated steam generator and the cooking vessel are connected to each other. On the other hand, when the connection member is disconnected, the connection part that cuts off the pressurized superheated steam generation device and the cooking container,
A circulation duct in which a circulation fan is disposed inside, while connecting a supply port of pressurized superheated steam provided in the connection part and a blowout port of pressurized superheated steam provided in the wall of the heating chamber,
A suction port for guiding the gas in the heating chamber to the upstream side of the circulation fan of the circulation duct, provided on the wall of the heating chamber ;
Supplying pressurized superheated steam to the cooking vessel, driving the circulation fan to generate hot air circulating in the heating chamber, and blowing the hot air to the cooking vessel .

  According to the above configuration, when the cooking container in which the object to be heated is stored is disposed in the heating chamber, and the connecting member of the cooking container is attached to the connection portion attached to the heating chamber, the cooking container is installed outside the heating chamber. The pressurized superheated steam generation device and the cooking container are communicated, and the pressurized superheated steam generated by the pressurized superheated steam generation device is supplied to the cooking container. Therefore, in the cooking container, baking can be performed in a pressurized state with superheated steam on the object to be heated.

  In that case, the moisture content of the object to be heated can be reduced, so that a texture different from that of baked cooking at normal pressure can be obtained, and effects such as softening of the food can be achieved.

In the pressurized superheated steam cooker of one embodiment,
The cooking vessel or the pressurized superheated steam generator is provided with a first safety valve that opens when the pressure of the pressurized superheated steam in the interior reaches a first preset pressure, and releases the pressurized superheated steam inside. It has been.

  According to this embodiment, when the pressure in the cooking container or the pressurized superheated steam generator reaches a preset first set pressure, the first safety valve causes the cooking container and the pressurized superheated steam to be used. Pressurized superheated steam inside the generator is released. Thus, there is no damage to the cooking container or the pressurized superheated steam generator, and it is possible to safely perform baked cooking in a pressurized state with superheated steam.

In the pressurized superheated steam cooker of one embodiment,
The cooking container is provided with an indicator indicating that the pressure of the pressurized superheated steam in the interior has reached a second set pressure that is set in advance lower than the first set pressure.

  According to this embodiment, the user can know that the pressure in the cooking container has reached the desired second set pressure by the indicator, and baked with pressurized superheated steam at the desired pressure. It can be confirmed that cooking is performed correctly.

In the pressurized superheated steam cooker of one embodiment,
The cooking vessel or the pressurized superheated steam generator is provided with a second safety valve that is forcibly opened by a control signal from the outside to release the internal pressurized superheated steam.

  According to this embodiment, when cooking with pressurized superheated steam is finished by the function of the second safety valve, a control signal is given from the outside to the second safety valve to generate the cooking container and the pressurized superheated steam. By releasing the pressurized superheated steam inside the apparatus, the pressure in the cooking vessel can be rapidly reduced. In this way, overheating of the object to be heated can be prevented.

In the pressurized superheated steam cooker of one embodiment,
On the upstream side of the first safety valve in the pressurized superheated steam generator, the pressure inside the pressurized superheated steam generator is released when the pressure reaches a third set pressure that is set higher than the first set pressure in advance. A third safety valve is provided.

  According to this embodiment, when the pressure in the pressurized superheated steam generator reaches the third set pressure set higher than the first set pressure, the internal safety is released by the third safety valve. . Thus, by performing overpressure prevention in two stages with the first safety valve and the third safety valve, it is possible to improve safety when performing baked cooking in a pressurized state with superheated steam.

  As is clear from the above, the pressurized superheated steam cooker according to the present invention arranges the cooking container in which the object to be heated is accommodated in the heating chamber, and connects the cooking container to the connection portion attached to the wall of the heating chamber. When the connecting member is attached, the pressurized superheated steam generator installed outside the heating chamber communicates with the cooking container, so that the pressurized superheated steam generated by the pressurized superheated steam generator is Can be supplied to cooking containers. Therefore, in the cooking container, baking can be performed in a pressurized state with superheated steam on the object to be heated.

  In that case, the moisture content of the object to be heated can be reduced, so that a texture different from that of baked cooking at normal pressure can be obtained, and effects such as softening of the food can be achieved.

It is a conceptual diagram which shows the basic composition in the pressurized superheated steam cooker of this invention. It is a front view in the pressurization superheated steam cooker of a 1st embodiment. FIG. 3 is a side view related to FIG. 2. It is operation | movement explanatory drawing of the connection part in FIG. 2 and FIG. 3, and is a figure which shows the state with which the cooking container was mounted | worn to the connection part. It is a figure which shows the state which the cooking container removed from the connection part in FIG. It is operation | movement explanatory drawing different from FIG. 4 and FIG. 5 of the connection part in FIG. 2 and FIG. 3, and is a figure which shows the state which the cooking container removed from the connection part. It is a figure which shows the state with which the cooking container was mounted | worn with the connection part in FIG. It is a front view in the pressurized superheated steam cooker of 2nd Embodiment. It is a side view regarding FIG. FIG. 10 is a side view of a modified example of the pressurized superheated steam cooker shown in FIGS. 8 and 9. It is a longitudinal cross-sectional view which shows the structural example of the exhaust duct in FIGS.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1 is a conceptual diagram showing a basic configuration of a pressurized superheated steam cooker according to the present embodiment. In FIG. 1, 1 is a water tank, 2 is a pump, 3 is a steam generator, 4 is a superheated steam generator, and 5 is a cooking vessel. Water 3a supplied from the water tank 1 to the steam generator 3 by the pump 2 is heated and boiled by a heater (not shown) in the steam generator 3 to generate saturated steam. The saturated steam is pressurized by filling the steam generator 3 and flows into the superheated steam generator 4 by the steam pressure. A heater (not shown) is installed in the superheated steam generator 4, and the supplied high-pressure saturated steam is heated by the heater to become high-pressure superheated steam. And this high-pressure superheated steam flows into the cooking vessel 5 by the vapor pressure. In addition, if the said heater in the superheated steam generator 4 is stopped, the high voltage | pressure saturated steam generated with the steam generator 3 will be supplied to the cooking vessel 5 as it is.

  A net 7 for placing the object to be heated 6 is installed in the cooking container 5, and the object to be heated 6 is heated in a pressurized state by the supplied high-pressure superheated steam or high-pressure saturated steam. Cooked. For example, when high-pressure superheated steam is supplied, baked cooking is performed in a pressurized state with the superheated steam, and when high-pressure saturated steam is supplied, in a pressurized state with the saturated steam. Steamed cooking or stewed cooking under pressure is performed.

  The cooking container 5 is provided with a door (not shown) that can be opened and closed. This door has a structure in which the object to be heated 6 can be put inside the cooking container 5 by opening it, and the inside of the cooking container 5 can be sealed by closing. The cooking vessel 5 including the door has a pressure resistant structure.

  Here, when baking is performed with the above-described high-pressure superheated steam, baking is performed with a small amount of moisture, so that a texture different from that obtained when baking with normal-pressure superheated steam is obtained. There are features. For example, when potatoes are baked with superheated steam at 1.8 atmospheres, the texture is similar to chestnuts because they have less water than when baked with superheated steam at normal pressure (1 atmosphere). The result is a sweetened feeling. It should be noted that the degree of moisture reduction of the ingredients due to high pressure is 0.5% moisture reduction when baked with 1 atm superheated steam, whereas baked with 1.8 atm superheated steam. The water loss is 1.6 percent. In addition, the food is soft and the temperature rising rate inside the food is increased.

  In addition, when steamed cooking or stewed cooking is performed with the high-pressure saturated steam, the boiling point of the object to be heated is increased by pressurization, so that cooking is completed in a short time and the food becomes soft.

  By the way, in the said structure, in order to reduce the number of joints which become unstable with respect to a pressure change, the superheated steam generator 4 is not made into an independent structure, but the path | route itself from the steam generator 3 to the cooking vessel 5 is carried out. It is desirable to have a heating structure. That is, the steam generator 3, the superheated steam generator 4, the cooking vessel 5, the steam path connecting the steam generator 3 and the superheated steam generator 4, and the superheat connecting the superheated steam generator 4 and the cooking vessel 5. It is desirable that the steam path is integrally formed. Further, the pump 2 is a tube pump resistant to pressure, and the pump 2 to the cooking vessel 5 are pressurized to the same pressure.

  Furthermore, a safety valve 8 and a safety valve 9 are attached to the steam generator 3 and the cooking vessel 5 so that the internal pressure does not exceed a certain pressure. Further, the cooking container 5 is provided with a high-pressure pin 10 as an indicator for raising the inside of the cooking container 5 when the pressure in the cooking container 5 exceeds a predetermined pressure and notifying the cook that the inside of the cooking container 5 has reached the predetermined pressure.

  Here, the safety valve 8 of the steam generator 3 and the safety valve 9 of the cooking vessel 5 are configured to operate at different pressures (for example, safety valve 8> safety valve 9). Thus, safety can be improved by performing overpressure prevention in two stages.

  Hereinafter, specific embodiments of the pressurized superheated steam cooker having the basic configuration as described above will be described.

-1st Embodiment FIG. 2: is a front view which shows schematic structure in the pressurized superheated steam cooker of this Embodiment, and FIG. 3 is a side view. In the pressurized superheated steam cooker in the present embodiment, a water tank 1, a pump 2, a steam generator 3, a superheated steam generator 4 and a cooking vessel 5 are sequentially connected in the same manner as in the basic configuration shown in FIG. Has been placed. In addition, the steam generator 3, the superheated steam generator 4, the connection part 13 mentioned later, and a connection path | route are comprised integrally by welding etc. And from the pump 2 to the cooking vessel 5 has a pressure | voltage resistant structure. Moreover, the cooking container 5 is provided with a door (not shown), and the interior can be sealed by closing the door.

  In this Embodiment, the said cooking container 5 can be arrange | positioned in the heating chamber 12 of the steam cooker 11 which can cook a to-be-heated material with superheated steam. The steam generator 3 and the superheated steam generator 4 function as a pressurized superheated steam generator in the pressurized superheated steam cooker of the present embodiment, and also function as a superheated steam generator in the steam cooker 11. It is installed beside the heating chamber 12 together with the water tank 1 and the pump 2. 2 and 3, in order to facilitate understanding of the configuration of the pressurized superheated steam cooker in the present embodiment, the casing that encloses the heating chamber 12 and forms the outer shell is omitted or indicated by a broken line.

  Moreover, the connection part 13 which connects and connects the superheated steam generator 4 and the cooking vessel 5 with the outer surface of the side wall 12a by the side in which the superheated steam generator 4 in the heating chamber 12 of the said steam cooker 11 is installed. Is installed. When the connecting portion 13 opens the door 14, the cooking container 5 is disposed in the heating chamber 12 and is attached to the connecting portion 13, the superheated steam generator 4 installed beside the heating chamber 12 When the cooking vessel 5 is communicated and the pressurized superheated steam from the superheated steam generator 4 is guided to the cooking vessel 5, while the cooking vessel 5 is taken out from the heating chamber 12, the superheated steam generator 4 and the cooking vessel 5 5 is cut off so that the pressurized superheated steam from the superheated steam generator 4 is not led to the cooking vessel 5.

  A supply port 13 a for supplying pressurized superheated steam from the superheated steam generator 4 is provided at the upper part of the connecting portion 13. On the other hand, the side wall 12 a of the heating chamber 12 is provided with an outlet 15 for blowing out the pressurized superheated steam supplied from the connection portion 13 into the heating chamber 12. And the supply port 13a of the connection part 13 and the blower outlet 15 of the heating chamber 12 are connected by the circulation duct 17 by which the circulation fan 16 is arrange | positioned inside. Further, a suction port 18 through which a gas containing pressurized superheated steam in the heating chamber 12 is sucked out is provided on the side wall 12 a of the heating chamber 12. On the other hand, a suction port 19 for sucking the gas from the heating chamber 12 is provided upstream of the circulation fan 16 in the circulation duct 17. The suction port 18 of the heating chamber 12 and the suction port 19 of the circulation duct 17 are connected by a connecting duct 20.

  Therefore, when the cooking container 5 is taken out from the heating chamber 12, the superheated steam supplied from the superheated steam generator 4 to the connection portion 13 is driven by the circulation fan 16 to drive the circulation duct 17 and the connecting duct 20. It circulates in the heating chamber 12 via Therefore, by placing an object to be heated on a tray (not shown) in the heating chamber 12, cooking such as baking the object to be heated with superheated steam becomes possible. In that case, the inside of the heating chamber 12 is not completely sealed.

  FIG. 4 is a schematic diagram for explaining the operation of the connecting portion 13. In FIG. 4, the superheated steam generator 4 and the connection portion 13 are connected by a connection path 21. And the side wall 13b of the connection part 13 is closely attached to the outer surface of the side wall 12a of the heating chamber 12, and the connection of the cooking vessel 5 is connected to the side wall 13b of the connection part 13 and the side wall 12a of the heating chamber 12. Insertion holes 12b and 13c having substantially the same radius through which the connecting pipe 5a as a member is inserted are formed. On the other hand, an elastic body 22 that applies an elastic force passes through the center of the insertion hole 13 c and is perpendicular to the side wall 12 a of the heating chamber 12. For example, a valve body 23 having a conical valve seat is attached to the front end on the chamber 12 side.

  In the configuration of FIG. 4, when the cooking container 5 is disposed in the heating chamber 12 and the connection pipe 5 a of the cooking container 5 is inserted into the insertion hole 12 b of the heating chamber 12 and the insertion hole 13 c of the connection portion 13, The tip of the connecting pipe 5a having a cross section is brought into contact with the conical valve seat of the valve body 23, and the valve body 23 is pushed in by the connecting pipe 5a of the cooking vessel 5 against the elastic force of the elastic body 22. The valve body 23 is separated from the insertion hole 13 c of the connection portion 13. Here, a slit or a hole (both not shown) is provided on the distal end side of the connecting pipe 5a. Accordingly, the pressurized superheated steam supplied from the superheated steam generator 4 to the connecting portion 13 is connected to the connecting pipe 5a located between the spaced valve body 23 and the insertion hole 13c as shown by an arrow (A). Then, it flows into the connecting pipe 5a through the slit or the hole and is supplied into the cooking vessel 5.

  On the other hand, when the door 14 is opened and the cooking container 5 is taken out from the heating chamber 12, the connecting pipe 5 a of the cooking container 5 is connected to the insertion hole 12 b of the heating chamber 12 and the connecting portion 13 as shown in FIG. 5. The valve body 23 is moved forward by the elastic force of the elastic body 22, so that the conical valve seat of the valve body 23 comes into contact with the insertion hole 13c of the connection portion 13 and the insertion hole 13c is sealed. Is done. As a result, the pressurized superheated steam supplied from the superheated steam generator 4 to the connection portion 13 is supplied from the supply port 13a of the connection portion 13 to the circulation duct 17 side.

  Here, packing 13d is embedded or covered on the wall surface of the insertion hole 13c of the connecting portion 13. In this way, between the connecting pipe 5a of the cooking vessel 5 and the insertion hole 13c of the connecting portion 13, a structure in which the pressurized superheated steam supplied does not escape even after repeated attachment and detachment with respect to the connecting portion 13 of the cooking vessel 5 by the packing 13d. It has become.

  The structure of the connecting portion 13 is not limited to the structure shown in FIGS. For example, as shown in FIGS. 6 and 7, in the connection portion 13, it is rotated approximately 90 degrees around the fulcrum 36 a, and is switched and contacted between the supply port 13 a and the insertion hole 13 c of the connection portion 13. A switching valve 36 that is hermetically sealed by 36b and 36c is provided. The switching valve 36 is always urged by an urging portion (not shown) toward the insertion hole 13c. When the cooking container 5 is taken out from the heating chamber 12, as shown in FIG. 6, the switching valve 36 is urged toward the insertion hole 13c by the urging portion, and the insertion hole 13c is sealed by the packing 36c. On the other hand, when the cooking vessel 5 is disposed in the heating chamber 12 and the connecting pipe 5a of the cooking vessel 5 is inserted through the insertion hole 13c of the connecting portion 13, as shown in FIG. It is pressed by the connecting pipe 5a and rotates against the urging force of the urging portion, and is pushed up toward the supply port 13a to seal the supply port 13a with the packing 36b. On the other hand, a packing 37 is embedded or covered on the end face of the distal end portion of the connecting pipe 5a. The packing 37 seals between the connection path 21 and the inside of the connection pipe 5 a and the inside of the connection portion 13.

  In this case, the switching operation of the switching valve 36 is performed by the connecting pipe 5a of the cooking vessel 5 and the urging portion. However, the insertion of the connecting pipe 5a into the insertion hole 13c is electrically detected, and electromagnetic operation is performed. The switching valve 36 may be switched. In short, when the cooking container 5 is arranged in the heating chamber 12 and the connecting member of the cooking container 5 is attached to the connecting portion 13, the superheated steam generator 4 and the cooking container 5 are communicated with each other and pressurized overheating. Steam is introduced into the cooking vessel 5. On the other hand, when the cooking container 5 is taken out from the heating chamber 12, any structure may be used as long as the superheated steam generator 4 and the cooking container 5 are shut off and the pressurized superheated steam is guided to the circulation duct 17 side. .

  As described in the basic configuration shown in FIG. 1, the safety valve 9 and the high-pressure pin 10 are attached to the cooking container 5. Here, the safety valve 9 controls the operation of the steam generator 3 and the superheated steam generator 4 in addition to the function as a normal safety valve that automatically releases the superheated steam pressure when the superheated steam pressure exceeds the set pressure. It has a function of opening and closing by electrical control from a device (not shown). In this way, when cooking with pressurized superheated steam in the cooking container 5 is completed, the safety valve 9 is opened under the control of the control device, thereby shortening the pressurized superheated steam in the cooking container 5. Relieving in time, the pressure can be drastically reduced. Therefore, the object to be heated in the cooking container 5 can be quickly taken out and the object to be heated (food item) can be prevented from being overheated.

  That is, in the present embodiment, the first safety valve and the second safety valve in the scope of the claims are constituted by a single safety valve 9.

  Although not disclosed in FIGS. 2 and 3, as is apparent from the basic configuration shown in FIG. 1, a safety valve 8 is also attached to the steam generator 3. However, as in the case of the safety valve 9, the configuration of the safety valve 8 does not need to be configured to have a function of opening and closing by electrical control from the control device. The reason for this is that when cooking with pressurized superheated steam in the cooking vessel 5 is finished, if the safety valve 8 is opened under the control of the control device, the additional steam is present on the upstream side of the steam generator 3. This is because all the pressurized superheated steam flows backward and is discharged from the safety valve 8, which is very dangerous.

  The set pressure at which the safety valve 8 automatically releases the vapor pressure is set higher than the set pressure at which the safety valve 9 automatically releases the superheated vapor pressure.

  In the cooking container 5, trays 24 a and 24 b are arranged in a plurality of stages, and the object to be heated 6 is placed on the trays 24 a and 24 b, so that the object to be heated 6 is baked under pressure. Done.

  As described above, in the present embodiment, the steam generator 3, the superheated steam generator 4, the connecting portion 13, and the connection path of the steam cooker 11 that can cook the object to be heated with superheated steam are welded or the like. By constructing as a single unit, a pressure-resistant structure is formed from the pump 2 to the cooking vessel 5. And the connection part 13 is attached to the side wall 12a by the side of the superheated steam generator 4 in the heating chamber 12. FIG. The connecting portion 13 allows the superheated steam generator 4 and the cooking vessel 5 to communicate with each other when the cooking vessel 5 is installed in the heating chamber 12 and the connecting pipe 5a of the cooking vessel 5 is attached to the insertion hole 13c of the connecting portion 13. Then, the pressurized superheated steam from the superheated steam generator 4 is guided to the cooking container 5, while the cooking container 5 is taken out of the heating chamber 12 and the connecting pipe 5 a of the cooking container 5 is detached from the insertion hole 13 c of the connecting portion 13. The superheated steam generator 4 and the cooking vessel 5 are disconnected from each other, and the pressurized superheated steam from the superheated steam generator 4 is guided to the circulation duct 17 side.

  Therefore, according to the present embodiment, if the connecting pipe 5a of the cooking vessel 5 on which the object to be heated 6 is placed on the trays 24a and 24b is attached to the insertion hole 13c of the connecting part 13, the object 6 to be heated is attached. It is possible to perform baking cooking in a pressurized state with superheated steam.

  Moreover, if the connecting pipe 5a of the cooking container 5 is detached from the insertion hole 13c of the connecting portion 13, the object to be heated in the heating chamber 12 can be cooked at normal pressure with superheated steam. is there.

  In the present embodiment, the cooking vessel 5 is provided with a safety valve 9 and a high-pressure pin 10. And in addition to the function as a normal safety valve, the safety valve 9 has a function of opening and closing under the control of the control device. Therefore, the safety valve 9 can be opened when cooking with pressurized superheated steam in the cooking container 5 is completed, and the pressure in the cooking container 5 can be drastically reduced. Therefore, it is possible to quickly take out the object to be heated in the cooking container 5 and prevent the object to be heated (food) from being overheated.

  Furthermore, the cook can know that the inside of the cooking container 5 has reached the desired pressure by monitoring the state of the high-pressure pin 10 through the transparent window of the door 14, and can reliably apply the pressure at the desired pressure. Baking cooking with pressurized superheated steam can be performed.

  Although not described in detail above, as described in the basic configuration, if the heater in the superheated steam generator 4 is stopped by the controller, the cooking container 5 has the steam generator 3. The high-pressure saturated steam generated in step 1 is supplied as it is, and steaming cooking in a pressurized state or boiling cooking in a pressurized state can be performed. The operations of the safety valve 8, the safety valve 9, and the high pressure pin 10 in this case are the same as in the case of pressurized superheated steam. On the other hand, the high-pressure saturated steam generated in the steam generator 3 is supplied to the heating chamber 12 so that steam cooking using saturated steam or boiling cooking at normal pressure can be performed.

  In addition, as described above, even if only the pressurized superheated steam is supplied into the cooking vessel 5, the object to be heated 6 can be burnt. However, since there is also a heat capacity of the cooking vessel 5, the amount of heat may be insufficient with only the pressurized superheated steam. In such a case, a sheathed heater or the like is provided in the heating chamber 12 of the steam cooker 11, and hot air circulating in the heating chamber 12 is generated by driving the circulation fan 16 under the control of the control device. It is desirable to assist the shortage of heat with this hot air. For example, when steamed cooking or stewed cooking is performed, the hot air having a temperature in the vicinity of the boiling point in the cooking container 5 (120 ° C. in the case of 1.8 atm) is blown onto the cooking container 5. Moreover, when baking cooking, the temperature is raised a little more and the said hot air of the temperature of 150 to 160 degreeC vicinity is sprayed on the cooking container 5. FIG.

  By the way, in this Embodiment, the said steam generator 3, the superheated steam generator 4, the connection part 13, and a connection path are comprised integrally by welding. In this case, it is most reliable and safe to integrally form by “welding”. However, a connection pipe is provided for each of the steam generator 3, the superheated steam generator 4, and the connection portion 13, and the connection pipes are connected by a silicon tube as the connection path, and at least the silicon tube is connected. Even if it is fixed with a metal hose band having the same diameter as the pipe, it can withstand pressure changes and maintain safety. In this case, the productivity can be improved as compared with the case where they are integrally formed by welding as described above.

-2nd Embodiment FIG. 8: is a front view which shows schematic structure in the pressurized superheated steam cooker of this Embodiment, and FIG. 9 is a side view. Also in FIGS. 8 and 9, in order to facilitate understanding of the configuration of the pressurized superheated steam cooker in the present embodiment, the casing that encloses the heating chamber 12 and forms the outer shell is omitted or indicated by a broken line.

  In the first embodiment shown in FIG. 2, the safety valve 9 is attached to the cooking vessel 5. Accordingly, as a result of pressure regulation by the safety valve 9, the exhaust steam is discharged into the heating chamber 12. For this reason, the inside of the heating chamber 12 is wetted by the condensed water of the discharged steam, and the inside of the heating chamber 12 is troublesome. Therefore, in this embodiment, a structure is adopted in which the pressure-regulated steam is taken out of the heating chamber.

  In the present embodiment, the water tank 1, the pump 2, the steam generator 3, the superheated steam generator 4 and the cooking vessel 5 have the same configuration as that of the first embodiment, and detailed description thereof will be given. Omitted. Further, the steam cooker 11, the heating chamber 12, the connection portion 13, the circulation fan 16, the circulation duct 17 and the connection duct 20 have the same configuration as in the first embodiment, and detailed description thereof is omitted. To do. However, in FIG. 8, the circulation fan 16, the circulation duct 17, and the connection duct 20 are omitted.

  That is, also in the present embodiment, when the cooking container 5 is taken out from the heating chamber 12, the superheated steam supplied from the superheated steam generator 4 to the connecting portion 13 is driven by driving the circulation fan 16. The inside of the heating chamber 12 is circulated through the circulation duct 17 and the connecting duct 20, and heating cooking such as baking the object to be heated in the heating chamber 12 with superheated steam is possible.

  In the present embodiment, a pressure regulating chamber 25 communicating with the superheated steam generating device 4 is provided on the downstream side of the superheated steam generating device 4. The pressure regulating chamber 25 is provided with a safety valve 26 and has an upper end surface. The exhaust duct 27 exposed to the outside from the top plate 29 of the casing is attached. When the superheated steam pressure exceeds the set pressure and the safety valve 26 releases the superheated steam pressure, or when the safety valve 26 is opened by the control of the control device, the superheated steam generating device 4 to the cooking vessel 5 are used. The high-pressure superheated steam in this path is discharged into the exhaust duct 27 and exhausted out of the steam cooker 11 from the discharge port 28 provided in the upper end surface of the exhaust duct 27.

  FIG. 10 is a side view showing a modification of the present embodiment. However, in FIG. 10, the circulation fan 16, the circulation duct 17, and the connection duct 20 are omitted. In FIG. 8 and FIG. 9 described above, the exhaust duct 27 is housed in the space beside the heating chamber 12 in the casing to improve the appearance of the steam cooker 11. However, the steam from the exhaust duct 27 is exhausted from the top plate 29 of the casing, which is disadvantageous when there is a shelf or the like above the top plate 29 of the casing.

  Therefore, in this modification, the exhaust duct 27 is provided so as to be exposed on the back surface of the steam cooker 11, and the position of the discharge port 28 of the exhaust duct 27 is lowered. That is, the cooking container 5 is installed on the rear wall in the heating chamber 12, and the connection portion 13 is installed on the back surface of the steam cooker 11. The pressure regulating chamber 25 is provided on the back surface of the steam cooker 11 so as to communicate with the connection portion 13, and the exhaust duct 27 is exposed on the back surface of the steam cooker 11 in the pressure regulating chamber 25. Attached. Therefore, the height of the exhaust duct 27 can be reduced to the height of the safety valve 26 provided therein, and the distance from the upper end surface of the exhaust duct 27 to a shelf or the like positioned above can be earned. That is, according to the present modification, it is possible to reduce the condensation of the steam exhausted from the exhaust port 28 provided in the upper end surface of the exhaust duct 27 by touching the shelf or the like.

  Next, a configuration example of the safety valve 26 will be described. FIG. 11 is a longitudinal sectional view of an exhaust duct 27 showing an example of the safety valve 26. The inside of the exhaust duct 27 is partitioned into two spaces by a partition plate 30 extending in the vertical direction, and one end of the exhaust duct 27 is connected to the first exhaust port 25a of the pressure regulating chamber 25 in a cylindrical shape. The exhaust pipe 31 is provided. A spherical valve body 32 is placed on the other end of the exhaust pipe 31, and the other end of the exhaust pipe 31 is sealed by the weight of the valve body 32. Here, the weight of the valve body 32 is set so as to balance the maximum allowable pressure of the pressurized superheated steam. Further, a solenoid 33 having a plunger that advances and retreats in the horizontal direction in response to a control signal from the control device is installed at a location facing the valve body 32 on the side wall of the exhaust duct 27.

  Thus, when cooking with pressurized superheated steam is completed and a control signal is output from the control device to the solenoid 33, the plunger of the solenoid 33 protrudes and the spherical valve body 32 is pushed in the horizontal direction. The position of the spherical valve body 32 with respect to the other end of the exhaust pipe 31 is shifted as shown by a broken line, and the other end of the exhaust pipe 31 is passed through the pressure regulating chamber 25 and the connecting portion 13 to the inside of the cooking container 5. The high pressure superheated steam is discharged into the exhaust duct 27. In this case, as indicated by a broken line, the center of gravity of the valve body 32 is in the exhaust pipe 31 in a plan view. Accordingly, when the plunger of the solenoid 33 is pulled by the control signal from the control device after the exhaust operation in the cooking container 5 is finished, the valve body 32 is placed in the original position at the other end of the exhaust pipe 31 by its own weight. The other end is sealed.

  On the other hand, the pressure regulating chamber 25 facing the other space partitioned by the partition plate 30 in the exhaust duct 27 is provided with a second exhaust port 25b. A thin film 34 that covers the second exhaust port 25 b is stretched at the lower end of the other space in the exhaust duct 27, and a plate-like weight 35 is placed on the thin film 34. And the thin film 34 is formed so that it may fracture | rupture with the maximum permissible pressure of pressurized superheated steam. The weight of the weight 35 is set so as to balance the maximum allowable pressure of the pressurized superheated steam. Therefore, when the pressure of the superheated steam exceeds the maximum allowable pressure, the pressurized superheated steam breaks through the thin film 34 and lifts the weight 35, so that the superheated steam generator 4, the connecting portion 13, and the cooking vessel 5 are heated. The pressure superheated steam pressure is released into the exhaust duct 27.

  Thus, the high-pressure superheated steam released from the exhaust pipe 31 into the exhaust duct 27 and the high-pressure superheated steam released from the second exhaust port 25b and pushed out of the weight 35 into the exhaust duct 27 are above the exhaust duct 27. The gas is exhausted from the steam cooker 11 through the discharge port 28 provided on the end face.

  That is, in the present embodiment, the “valve body 32 and solenoid 33” and the “thin film 34 and weight 35” constitute the safety valve 26.

  Note that the safety valve 26 also stops the heater in the superheated steam generator 4 and performs the above-described pressurized superheat even when steaming cooking in a pressurized state or saturated cooking with saturated steam is performed. It can operate in the same way as with steam.

  As described above, in the present embodiment, the pressure regulating chamber 25 that communicates with the superheated steam generating device 4 is provided on the downstream side of the superheated steam generating device 4, and the pressure regulating chamber 25 has an exhaust that houses the safety valve 26. A duct 27 is attached. Therefore, when the superheated steam pressure exceeds the set pressure of the safety valve 26 or when the safety valve 26 is opened by the control by the control device, the superheated steam in the path from the superheated steam generator 4 to the cooking vessel 5 is exhausted. It is possible to exhaust the gas from the steam cooker 11 through the discharge port 28 of the duct 27. That is, according to the present embodiment, the inside of the heating chamber 12 is not wetted by the dew condensation water of the discharged steam, and the inside of the heating chamber 12 is easily maintained.

  In that case, if the exhaust duct 27 is housed in the space beside the heating chamber 12 in the casing, and the discharge port 28 of the exhaust duct 27 is exposed to the outside from the top plate 29 of the casing, the steam cooker 11 is provided. Product appearance can be improved. On the other hand, if the exhaust duct 27 is provided so as to be exposed on the back surface of the steam cooker 11, the height of the exhaust duct 27 can be reduced to the height of the safety valve 26 provided therein, and the outlet 28 of the exhaust duct 27 can be reduced. The position can be lowered. Therefore, the distance from the discharge port 28 of the exhaust duct 27 to the upper shelf or the like can be increased, and it is possible to reduce the vapor exhausted from the discharge port 28 from touching the shelf or the like and causing condensation.

  As described above, in each of the above embodiments, the cooking vessel 5 having a pressure resistant structure is disposed in the heating chamber 12 of the steam cooker 11 that performs cooking with superheated steam, and the cooking vessel 5 includes the heating chamber 12. Pressurized superheated steam generated by a pressurized superheated steam generator is supplied from the outside. Therefore, it is possible to perform baking under pressure with superheated steam, and by reducing the water content, a texture different from that in baking under normal pressure can be obtained, and the ingredients become softer. It is possible to obtain characteristics such as an increase in the internal temperature increase rate.

  In the above embodiments, the connecting portion 13 is attached to the outer surface of the side wall 12 a of the heating chamber 12. However, the present invention is not limited to this, and it may be attached to the inner surface of the side wall 12a. Moreover, you may attach to locations other than the side wall 12a in the heating chamber 12. FIG.

  Moreover, in each said embodiment, although the safety valve 8 which prevents over-pressurization in two steps in cooperation with the said safety valve 9 is attached to the steam generator 3, it is not limited to this. In short, what is necessary is just to attach to the upstream from the safety valve 9 in the steam path | route from the steam generator 3 to the cooking vessel 5. FIG.

1 ... Water tank,
2 ... pump,
3 ... Steam generator,
4 ... Superheated steam generator,
5 ... Cooking container,
5a ... Connecting pipe for cooking container,
6 ... object to be heated,
8,9,26 ... Safety valve,
10 ... high pressure pin,
11 ... Steam cooker,
12 ... heating room,
13 ... connection part,
13c ... insertion hole of the connection part,
13d, 37 ... packing,
14 ... door,
16 ... circulation fan,
17 ... circulation duct,
20: Connecting duct,
22 ... an elastic body,
23, 32 ... valve body,
25 ... pressure regulating chamber,
27 ... exhaust duct,
28 ... exhaust duct outlet,
30 ... partition plate,
31 ... exhaust pipe,
33 ... Solenoid,
34 ... thin film,
35 ... Weight,
36: Switching valve.

Claims (5)

A heating chamber for cooking,
A cooking container for performing cooking by heating with pressurized superheated steam while being placed in the heating chamber and supplied with pressurized superheated steam from outside the heating chamber;
A pressurized superheated steam generating device that is installed outside the heating chamber and generates pressurized superheated steam;
While being attached to the heating chamber, the connecting member of the cooking vessel disposed in the heating chamber is detachable, and when the connecting member is attached, the pressurized superheated steam generator and the cooking vessel are connected to each other. On the other hand, when the connection member is disconnected, the connection part that cuts off the pressurized superheated steam generation device and the cooking container,
A circulation duct in which a circulation fan is disposed inside, while connecting a supply port of pressurized superheated steam provided in the connection part and a blowout port of pressurized superheated steam provided in the wall of the heating chamber,
A suction port for guiding the gas in the heating chamber to the upstream side of the circulation fan of the circulation duct, provided on the wall of the heating chamber ;
A pressurized superheated steam is supplied to the cooking vessel, the circulating fan is driven to generate hot air circulating in the heating chamber, and the hot air is blown onto the cooking vessel. Superheated steam cooker. The pressurized superheated steam cooker according to claim 1,
The cooking vessel or the pressurized superheated steam generator is provided with a first safety valve that opens when the pressure of the pressurized superheated steam in the interior reaches a first preset pressure, and releases the pressurized superheated steam inside. Pressurized superheated steam cooker characterized by being made. In pressurized pressure superheated steam cooker according to 請 Motomeko 2,
The cooking container is provided with an indicator indicating that the pressure of the pressurized superheated steam in the interior has reached a second set pressure that is set in advance lower than the first set pressure. Pressure overheated steam cooker. In the pressurized superheated steam cooker according to claim 2 or claim 3,
The cooking vessel or the pressurized superheated steam generator is provided with a second safety valve that is forcibly opened by an external control signal to release the pressurized pressurized superheated steam. Steam cooker. In the pressurized superheated steam cooker as described in any one of Claim 2 to Claim 4,
On the upstream side of the first safety valve in the pressurized superheated steam generator, the pressure inside the pressurized superheated steam generator is released when the pressure reaches a third set pressure that is set higher than the first set pressure in advance. A pressurized superheated steam cooker characterized in that a third safety valve is provided.

Images