WO2011043468A1 - 蒸気発生ユニットおよびそれを用いた蒸気調理器 - Google Patents
蒸気発生ユニットおよびそれを用いた蒸気調理器 Download PDFInfo
- Publication number
- WO2011043468A1 WO2011043468A1 PCT/JP2010/067761 JP2010067761W WO2011043468A1 WO 2011043468 A1 WO2011043468 A1 WO 2011043468A1 JP 2010067761 W JP2010067761 W JP 2010067761W WO 2011043468 A1 WO2011043468 A1 WO 2011043468A1
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- WIPO (PCT)
- Prior art keywords
- steam
- generation unit
- generator
- boiling water
- steam supply
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
- F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B3/00—Parts or accessories of ovens
- A21B3/04—Air-treatment devices for ovens, e.g. regulating humidity
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
Definitions
- the present invention relates to a steam generating unit that supplies steam to a steam supply chamber and a steam cooker using the steam generating unit.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2008-164284
- a magnetron and a heater are provided as heating means, and range cooking and oven cooking are possible.
- a steam generation container is disposed on the side of the heating chamber.
- the steam generating container is composed of a container body formed of a recess having an opening and a container cover that closes the opening of the container body.
- the container cover is screwed to the container body, thereby forming a steam generation chamber.
- a U-shaped steam heater is cast in the container body.
- a water supply port is attached to the container body.
- three cylindrical steam outlets are formed in the upper part of the container cover.
- a plurality of radiating fins are formed with four radiating fins that are positioned below the radiating fins below the steam outlet and project horizontally.
- the edge on the container cover side of each of the radiating fins formed inside the steam generation chamber is in contact with the inner surface of the container cover. Therefore, the inside of the steam generation chamber has a maze shape due to the plurality of heat radiation fins of various shapes extending in a plurality of directions. Therefore, even when the water flowing into the steam generation chamber boils and runs up the inner wall of the steam generation chamber, the boiling water is prevented from reaching the steam outlet by the labyrinth-like radiating fin. Furthermore, since the boiling water is heated and evaporated by hitting the heat radiation fin, the boiling water is prevented from being ejected from the steam outlet.
- Patent Document 1 has the following problems.
- the container body and the container cover are made of metal die casting such as aluminum die casting, and a U-shaped steam heater is cast inside the container body.
- a plurality of radiating fins projecting downward from the upper portion and a plurality of radiating fins projecting horizontally from the side portions are formed.
- the steam generation container is configured by screwing the container cover onto the container body having a complicated shape as described above. Therefore, there is a problem that scale is easily accumulated in the steam generation container, and that it is very difficult to remove the accumulated scale.
- the radiating fin is formed in the container body in which the steam heater is cast. Therefore, the temperature of the radiating fin is also raised to about 120 ° C. together with the steam generating container, and the generated saturated steam comes into contact with the radiating fin and is reheated to become superheated steam. Therefore, in the case of steamed food cooking such as pudding and steamed rice bowl, there is a problem that the finished state is not good because it is heated with superheated steam of 100 ° C. or higher.
- an object of the present invention is to provide a steam generating unit that has a simple structure, has little scale adhesion, and prevents boiling water from entering the steam supply space even when bumping occurs, and a steam cooker using the steam generating unit There is to do.
- the steam generation unit of the present invention is: A steam generator for generating steam; A steam supply chamber to which steam generated by the steam generator is supplied; A steam supply path for supplying the steam generated by the steam generator to the steam supply chamber; A boiling water intrusion prevention device is provided that is provided in the steam supply path and prevents boiling water from entering the steam supply chamber when bumping occurs in the steam generator.
- the boiling water intrusion prevention device is provided in the steam supply path for supplying the steam generated by the steam generator to the steam supply chamber, when bumping occurs in the steam generator. It is possible to prevent boiling water from entering the steam supply chamber. Therefore, it is possible to prevent the occurrence of temperature spots in the steam supplied chamber due to the boiling water entering the steam supplied chamber.
- the steam generation device can have a simple configuration without projections and the like inside. Therefore, when the steam generator is formed by metal die casting, a simple mold may be used, which can prevent an increase in cost. Furthermore, since the steam generator has a simple structure, it is difficult for scale to accumulate inside, and it is very easy to remove even if scale accumulates.
- the boiling water intrusion prevention device is not heated by the water heater of the steam generator, and the saturated water vapor generated by the steam generator is reheated by the heated boiling water intrusion prevention device or the like. Can be prevented from becoming superheated steam. Therefore, in the case of steamed food cooking using eggs such as pudding and steamed rice bowl, it is not heated with superheated steam of 100 ° C. or higher, and it is possible to prevent the food from being dried and the finished state being deteriorated.
- the steam supply path is A steam ejection section that is installed on the side wall of the steam supply chamber, is supplied with the steam generated by the steam generator, and jets the supplied steam into the steam supply chamber;
- a steam supply passage for connecting the steam generating device and the steam ejecting portion and supplying the steam generated by the steam generating device to the steam ejecting portion;
- the steam generation device is positioned below the steam ejection portion, and the steam supply passage extends upward from the steam generation device side to the steam ejection portion side.
- the steam supply passage constitutes the boiling water intrusion prevention device.
- the steam generation device is positioned below the steam ejection portion, and the steam supply passage extends upward. Therefore, even if bumping occurs in the steam generator and the boiling water jumps out into the steam supply passage, the boiling water can be prevented from entering the steam ejecting portion. Therefore, it is possible to prevent the boiling water from jumping out into the steam supply chamber and causing temperature spots in the steam supply chamber.
- the boiling water is separated from the water vapor in the steam ejection part, and is returned to the steam generator through the steam supply passage.
- a liquid return passage is provided for connecting the steam generating device and the steam ejecting portion and returning the liquid in the steam ejecting portion to the steam generating device.
- a liquid return passage for returning the liquid in the vapor ejection part to the vapor generator. Therefore, boiling water that has undergone bumping in the steam generator and enters the steam ejection part can return to the steam generator through the liquid return passage. As a result, it is possible to prevent boiling water traveling in the liquid return passage toward the steam generator from being obstructed by saturated water vapor that spouts in the steam supply passage toward the steam ejection portion, and promptly and reliably. It can be returned to the steam generator.
- the liquid flow from the vapor jet side to the vapor generator side is permitted, while the fluid flow from the vapor generator side to the vapor jet side is prohibited.
- a one-way valve device is provided.
- a one-way valve device is interposed in the liquid return passage. Therefore, it is possible to quickly pass the boiling water and condensed water from the steam jetting portion toward the steam generating device through the liquid return passage. On the other hand, the boiling water that has entered from the steam generator can be blocked by the one-way valve device, and can be prevented from entering the steam ejection section.
- the steam generator is positioned below the steam supply chamber, and the steam supply path is extended upward from the steam generator side to the steam supply chamber.
- the above-mentioned boiling water intrusion prevention device is constituted by itself.
- the steam generator is positioned below the steam supply chamber, and the steam supply path extends upward. Therefore, even if bumping occurs in the steam generator and boiling water jumps out to the steam supply path, the boiling water can be prevented from entering the steam supply chamber. Therefore, it is possible to prevent temperature spots from occurring in the steam supply chamber.
- the steam generator is positioned above or substantially at the same height as the steam supply chamber, and the steam supply path is curved upward to pass through a position higher than the steam generator.
- the boiling water intrusion prevention device is constituted by the steam supply path itself.
- the steam generator is positioned above or substantially at the same height as the steam supply chamber, and the steam supply path is curved upward. Therefore, even if bumping occurs in the steam generator and the boiling water jumps out into the steam supply path, the boiling water cannot get over the place where the steam supply path has risen, and the boiling Water can be prevented from entering the steam supply chamber.
- the steam supply path is A steam ejection section that is installed on the side wall of the steam supply chamber, is supplied with the steam generated by the steam generator, and jets the supplied steam into the steam supply chamber;
- a steam ejection nozzle that ejects steam into the steam supply chamber is provided on a side surface of the steam ejection section,
- a first surface that is installed in the vicinity of the steam ejection nozzle in the steam ejection section and that extends in the vertical direction and faces the steam ejection nozzle has a second surface that is continuous with the first surface.
- the upper end of the first surface is spaced apart from the top surface of the steam ejection portion to form an upper opening through which the steam introduced from the steam introduction port passes, while the tip of the second surface is the steam ejection It is attached in close contact with the above side surface of the part, and includes a separation plate that separates steam and boiling water,
- the separator plate constitutes the boiling water intrusion prevention device.
- the saturated water vapor introduced into the steam jetting section is supplied to the steam supply chamber from the upper opening over the first surface of the separation plate. Moreover, even if bumping occurs in the steam generator and boiling water enters the steam ejection part, it cannot get over the first surface and enters the steam supply chamber by the separation plate. That is blocked. Therefore, it is possible to prevent the occurrence of temperature spots in the steam supply chamber due to the boiling water entering the steam supply chamber.
- the steam cooker of this invention is Comprising the steam generating unit of the present invention.
- the steam supply chamber generates a superheated steam by heating the steam supplied from the steam supply path or the heating chamber for cooking the object to be heated by the steam supplied from the steam supply path. It is characterized by being a steam heating device that is jetted into the heating chamber.
- the steam generation unit is provided that can prevent boiling water from entering the steam supply chamber when bumping occurs in the steam generator. Therefore, when bumping occurs in the steam generator, it is possible to prevent boiling water from entering the heating chamber or the steam heating device, which is the steam supply chamber. Therefore, it is possible to prevent the boiling water from entering the heating chamber and being applied to the object to be heated, thereby causing heating spots on the object to be heated. Alternatively, it is possible to prevent the boiling water from entering the steam heating device and falling to the bottom surface of the steam heating device, thereby causing temperature spots and preventing the heating spots from being generated on the object to be heated in the heating chamber.
- the steam generating unit of the present invention is provided with the boiling water intrusion prevention device in the steam supply path for supplying the steam generated by the steam generating device to the steam supply chamber. It is possible to prevent boiling water from entering the steam supply chamber when bumping occurs in the generator. Therefore, it is possible to prevent temperature spots from being generated in the steam supply chamber due to the boiling water entering the steam supply chamber.
- the steam generation device can have a simple configuration with no protrusions inside. Therefore, when the steam generator is formed by metal die casting, a simple mold may be used, which can prevent an increase in cost. Furthermore, since the steam generator has a simple structure, it is difficult for scale to accumulate inside, and it is very easy to remove even if scale accumulates.
- the steam cooker of the present invention includes a steam generation unit that can prevent boiling water from entering the steam supply chamber when bumping occurs in the steam generator. Therefore, when bumping occurs in the steam generator, it is possible to prevent boiling water from entering the heating chamber or the steam heating device, which is the steam supply chamber. Accordingly, it is possible to prevent the boiling water from entering the heating chamber and being applied to the object to be heated, thereby causing heating spots on the object to be heated. Alternatively, it is possible to prevent the boiling water from entering the steam heating device and falling to the bottom surface of the steam heating device, thereby causing temperature spots and preventing the heating spots from being generated on the object to be heated in the heating chamber.
- FIG.1 It is a figure which shows the principal part in the heating cooker in which the steam generation unit different from FIG.1, FIG.3 and FIG.5 was used. It is a figure which shows the principal part in the heating cooker in which the steam generation unit different from FIG.1, FIG.3, FIG.5 and FIG. 7 was used. It is a figure which shows the principal part in the heating cooker in which the steam generation unit different from FIG.1, FIG.3, FIG.5, FIG.7 and FIG. 8 was used.
- FIG.1 and FIG.2 is a schematic diagram which shows the basic composition in the heating cooker in which the steam generation unit of this Embodiment was used.
- FIG. 1 is a longitudinal sectional view seen from the front side
- FIG. 2 is a longitudinal sectional view seen from the side.
- the heating cooker includes a main body casing 1, a heating chamber 2 as the steam supply space provided in the main body casing 1, and a steam generator 3 that generates steam. Is included.
- the heating chamber 2 has an opening on the front side, and the side plate, the bottom plate, and the top plate are made of stainless steel plates.
- the user can open and close the opening portion with the door 5 with the handle 4 so that the object to be heated (food) 6 can be taken in and out of the heating chamber 2 through the opening portion.
- a heat insulating material (not shown) is arranged around the heating chamber 2 to insulate the inside of the heating chamber 2 from the outside.
- a stainless steel tray 7 is placed in the heating chamber 2 at a predetermined interval from the bottom plate of the heating chamber 2.
- the tray 7 is supported by receiving shelves (not shown) provided in multiple stages on the left and right side plates in the heating chamber 2.
- a grid-like cooking net 8 formed of stainless steel wire is placed on the tray 7, and the object to be heated 6 is placed at the approximate center of the cooking net 8. In this way, the object to be heated 6 is accommodated in the heating chamber 2 with a space from the bottom plate of the heating chamber 2.
- the steam generator 3 includes a steam generator 10 having a water reservoir 9 and a water heater 11 that is installed at a lower portion of the water reservoir 9 and heats and evaporates water in the water reservoir 9.
- the water heater 11 is obtained by bending a sheathed heater into a “U” shape.
- the steam generation unit 10 includes a main body 12 provided with a water reservoir 9 and a lid 13 that covers the water reservoir 9 of the main body 12.
- the main body 12 is made of metal die casting such as aluminum die casting, and a water heater 11 is cast under the water reservoir 9. Water in a water supply tank (not shown) is supplied to the water reservoir 9 by a pump (not shown).
- the steam generator 3 is installed in the lower part of the outer surface of the side wall of the heating chamber 2.
- a steam ejecting portion 14 that functions as a gas-liquid separation unit and ejects saturated steam generated in the steam generating device 3 into the heating chamber 2 is installed.
- the steam ejection part 14 is made of a metal die casting such as aluminum die casting and has a flat rectangular parallelepiped shape.
- a steam ejection nozzle having a tip projecting into the heating chamber 2 is provided on the upper side wall of the heating chamber 2 side. Three 15 are attached.
- a steam supply port 16 for supplying saturated steam generated in the water reservoir 9 to the steam ejection part 14 is provided in the lid part 13 of the steam generator 3. Further, a steam inlet 17 for introducing water vapor from the steam generating device 3 is provided at the bottom of the side wall opposite to the heating chamber 2 side in the steam ejection part 14. And the steam supply port 16 of the steam generator 3 and the steam inlet 17 of the steam ejection part 14 are connected by the steam supply pipe 18 bent from the outside to the inside. Further, the inner surface of the side wall on the heating chamber 2 side in the steam ejection portion 14 is bent into an L shape and has a rectangular surface facing the opening of the steam ejection nozzle 15 to separate water vapor and boiling water. Three separation plates 19 are attached.
- the steam generation unit 3 is configured by the steam generation device 3, the steam ejection portion 14, and the steam supply pipe 18.
- the water supplied from the water supply tank to the water reservoir 9 of the steam generator 10 is heated by the water heater 11, and the generated saturated steam is generated in the steam jetting part 14 via the steam supply pipe 18 by the steam pressure. To be supplied. And it ejects toward the to-be-heated material 6 in the heating chamber 2 from the three steam ejection nozzles 15 of the steam ejection part 14.
- the steam generator 3 is installed at the lower part of the outer surface of the side wall of the heating chamber 2.
- the steam ejection part 14 is installed above the steam generator 3 on the outer surface of the side wall of the heating chamber 2 with a distance from the steam generator 3. Therefore, even if bumping occurs in the water reservoir 9 of the steam generator 3 and the boiling water jumps out of the steam supply port 16 of the lid 13 into the steam supply pipe 18, it reaches the steam inlet 17 of the steam outlet 14. Since the distance is long and the steam supply pipe 18 is bent, the boiling water does not enter the steam ejection part 14. Therefore, it is prevented that the boiling water jumps out into the heating chamber 2 and is applied to the article 6 to be heated, thereby causing heating spots.
- the main body 12 in the steam generation unit 10 has a simple configuration in which no projections or the like are present in the water reservoir 9.
- the steam ejection section 14 has a simple configuration with no projections or the like in the interior. Therefore, in the case of forming by metal die casting, a simple mold may be used, which does not lead to an increase in cost.
- the steam generation part 10 has a simple structure as described above. Therefore, the scale is difficult to accumulate in the water reservoir 9, and it is very easy to remove the scale even if it accumulates.
- the steam ejection part 14 in which the separation plate 19 is attached is installed at a distance from the steam generator 3 provided with the water heater 11. Therefore, the separation plate 19 is not heated by the water heater 11, and the separation plate 19 can prevent the water vapor in the steam ejection part 14 from being heated. Therefore, the saturated steam generated in the water reservoir 9 is jetted into the heating chamber 2 in a state close to saturated steam without excessive heat exchange with the separation plate 19.
- the generated saturated steam is prevented from being reheated by the separation plate 19 or the like to become superheated steam. Therefore, in the case of steamed food cooking using eggs such as pudding and steamed rice bowl, it is not heated with superheated steam of 100 ° C. or higher, and it is possible to prevent the food from being dried and the finished state being deteriorated.
- FIG. 3 and 4 are schematic views showing a basic configuration of a heating cooker in which the steam generation unit of the first modification is used.
- FIG. 3 is a longitudinal sectional view seen from the front side
- FIG. 4 is a longitudinal sectional view seen from the side.
- the steam generation unit of the first modification is different from the steam generation unit shown in FIGS. 1 and 2 in that the steam ejection part 14 and the steam generation part 10 are connected by a liquid return pipe 22.
- the same members as those in the steam generation unit shown in FIGS. 1 and 2 are denoted by the same reference numerals as those in FIGS. 1 and 2, and detailed description thereof is omitted. And a different point from the steam generation unit shown in FIG. 1 and FIG. 2 is demonstrated.
- a liquid return port 20 for returning the liquid such as the boiling water or the dew condensation water to the water reservoir 9 of the steam generation unit 10 is provided in the lower part of the side surface of the steam ejection unit 14.
- a liquid inflow port 21 for taking in the liquid returned from the steam ejection part 14 is provided above the side surface of the main body part 12 of the steam generation part 10.
- the liquid return port 20 and the liquid inflow port 21 are connected by a liquid return pipe 22.
- the liquid return pipe 22 that connects the steam ejection part 14 and the steam generation part 10 is used for returning the boiling water that has entered the steam ejection part 14 to the water reservoir 9. It is used as a passage.
- the boiling water that has entered the middle of the steam supply pipe 18 returns to the water reservoir 9 through the steam supply pipe 18. In this way, the boiling water that travels in the liquid return pipe 22 toward the water reservoir 9 can be quickly and reliably stored without being disturbed by the saturated water vapor that spouts in the steam supply pipe 18 toward the steam ejector 14. It is possible to return to part 9.
- the steam generation unit 3, the steam ejection part 14, the steam supply pipe 18 and the liquid return pipe 22 constitute the steam generation unit.
- FIGS. 5 and 6 are schematic views of a heating cooker in which the steam generation unit of the second modification is used.
- FIG. 5 is a longitudinal sectional view seen from the front side
- FIG. 6 is a longitudinal sectional view seen from the side.
- the steam generation unit of the second modification is the first modification in that the check valve 23 as the one-way valve device is provided in the liquid return pipe 22 that connects the steam ejection part 14 and the steam generation part 10.
- the same members as those in the steam generation unit of the first modification are denoted by the same reference numerals as those in FIGS. 3 and 4 and detailed description thereof is omitted. Different points from the first modification will be described.
- the liquid return port 20 provided at the lower side of the side surface of the steam ejection part 14 and the liquid inlet 21 provided above the side surface of the main body part 12 of the steam generation part 10,
- the check valve 23 is connected by a liquid return pipe 22 interposed.
- a liquid return that connects the steam ejection part 14 and the steam generation part 10 as a dedicated passage for returning the boiling water that has entered the steam ejection part 14 to the water reservoir 9.
- a tube 22 is provided.
- the boiling water enters the liquid inlet 21 on the steam generation unit 10 side when bumping occurs in the water reservoir 9, and in some cases, into the vapor ejection unit 14 via the liquid return pipe 22. Get in.
- the liquid return pipe 22 connecting the steam ejection part 14 and the steam generation part 10 is prohibited from flowing a fluid from the steam generation part 10 side toward the steam ejection part 14 side.
- a check valve 23 that permits the flow of fluid from the steam ejection part 14 side toward the steam generation part 10 side is interposed. By doing so, boiling water and dew condensation water from the steam ejection part 14 toward the water reservoir 9 can pass through the liquid return pipe 22 quickly. On the other hand, the boiling water that has entered from the liquid inlet 21 of the water reservoir 9 is blocked by the check valve 23 and cannot enter the steam ejection part 14.
- the steam generation unit 3 the steam ejection part 14, the steam supply pipe 18, the liquid return pipe 22, and the check valve 23 constitute the steam generation unit.
- a separation plate 19 for separating water vapor and boiling water is attached to the side wall on the heating chamber 2 side in the steam ejection portion 14.
- the separating plate 19 is not always necessary.
- the steam jetting part 14 is installed above the steam generating apparatus 3 at a distance from the steam generating apparatus 3, so that when bumping occurs in the water reservoir 9, The boiling water that has jumped into the steam is prevented from reaching the steam ejection portion 14. Therefore, when the distance between the steam ejection part 14 and the steam generator 3 can be set to a distance at which the boiling water jumped into the steam supply pipe 18 cannot reach the steam ejection part 14, the separation plate 19 need not be provided.
- a check valve 23 is provided in the liquid return pipe 22.
- the present invention is not limited to the check valve 23, and may be a one-way valve or the like used for medical purposes as long as it permits only the flow of fluid in one direction.
- the said steam generator 3 is installed in the side wall of the heating chamber 2, and the saturated water vapor
- a steam heating device with a built-in steam heater is placed on the heating chamber, and the saturated steam generated in the steam generator installed outside the heating chamber is placed in the heating chamber via the steam heating device.
- a cooking device to inject is placed on the heating chamber, and the saturated steam generated in the steam generator installed outside the heating chamber is placed in the heating chamber via the steam heating device.
- when the steam heater is turned on superheated steam heated to an overheated state of 100 ° C. or higher is injected into the heating chamber.
- the steam heater is turned off, saturated steam is injected into the heating chamber as it is.
- the present embodiment relates to a heating cooker that injects saturated water vapor generated in a steam generator into a heating chamber via a steam heating device.
- FIG. 7 is a diagram showing a main part of a heating cooker in which the steam generation unit of the present embodiment is used.
- the main body casing is removed.
- Reference numeral 31 denotes a steam generator, which is disposed on the side of the heating chamber 33.
- Reference numeral 32 denotes a steam heating device as the steam supply space, which is placed on the heating chamber 33.
- the vertical position of the steam generator 31 is located below the steam heater 32.
- the steam generator 31 includes a steam generator 35 having a water reservoir 34, and a water heater 36 that is installed below the water reservoir 34 and heats and evaporates water in the water reservoir 34.
- the steam generation unit 35 includes a main body 37 provided with a water reservoir 34 and a lid 38 that covers the water reservoir 34 of the main body 37.
- the main body 37 is made of metal die casting such as aluminum die casting, and a water heater 36 is cast under the water reservoir 34. Water in a water supply tank (not shown) is supplied to the water reservoir 34 by a pump (not shown).
- the steam heating device 32 has a box with an open bottom, and a steam heater 39 is built inside.
- a steam blowing port 40 is provided on the side surface of the steam heating device 32 on the steam generating device 31 side.
- a steam supply port 41 is provided in the lid portion 38 of the steam generation unit 35. And the steam supply port 41 of the steam generation part 35 and the steam blow-in port 40 of the steam heating apparatus 32 are connected by the steam supply pipe 42.
- the vertical position of the steam generator 31 is positioned below the steam heating device 32. Therefore, the steam supply pipe 42 is bent upward and extends from the steam generating device 31 side toward the steam heating device 32 side.
- the steam generation unit 31 and the steam supply pipe 42 constitute the steam generation unit.
- the water supplied from the water supply tank to the water reservoir 34 of the steam generator 35 is heated by the water heater 36, and the generated saturated steam is generated in the steam heater 32 via the steam supply pipe 42 by the steam pressure.
- a plurality of steam outlets 43 are provided in a region where the steam heating device 32 is placed on the top plate of the heating chamber 33. Therefore, when the steam heater 39 is turned on, the saturated steam generated by the steam generating unit 35 is heated by the steam heating device 32 and becomes superheated steam from the steam outlet 43 (see FIG. (Not shown).
- the steam heater 39 is off, the saturated steam generated by the steam generating unit 35 is not heated by the steam heating device 32, and the heated steam in the heating chamber 33 from the steam outlet 43 remains as saturated steam. It is ejected toward the object.
- the steam generator 31 is located below the steam heater 32.
- the steam supply pipe 42 which connects the steam supply port 41 of the steam generation part 35 and the steam blow-in port 40 of the steam heating device 32 is bent upward from the steam generation device 31 side toward the steam heating device 32 side and extends. Exist. Therefore, the boiling water that has jumped into the steam supply pipe 42 at a distance in the vertical direction between the steam supply port 41 of the steam generation unit 35 and the steam injection port 40 of the steam heating device 32 does not reach the steam injection port 40.
- the steam supply The boiling water is returned into the water reservoir 34 because the pipe 42 rises without descending from the steam generator 31 side toward the steam heating apparatus 32 side and the steam supply pipe 42 is bent. And does not enter the steam heating device 32. Therefore, when the boiling water that has entered the steam heating device 32 falls to the bottom surface of the steam heating device 32 (that is, the top surface of the heating chamber 33), the temperature of the top plate of the heating chamber 33 decreases, and heating is performed. It is possible to prevent the occurrence of heating spots on the object to be heated in the chamber 33. Furthermore, it is possible to prevent the boiling water or the water overflowing from the water reservoir 34 from being applied to the steam heater 39 that is turned on and causing a steam explosion or the like.
- the main body portion 37 in the steam generator 31 has a simple configuration in which no protrusions or the like are present in the water reservoir portion 34. Therefore, in the case of forming by metal die casting, a simple mold may be used, which does not lead to an increase in cost. Furthermore, the steam generation part 35 has a simple structure as described above. Therefore, the scale does not easily accumulate in the water reservoir 34, and even if the scale accumulates, it is very easy to remove.
- the steam generator 35 is provided with an object for heating again the saturated steam generated by the steam generator 31 when the steam heater 39 is turned off and the saturated steam is ejected into the heating chamber 33. Not. Therefore, the saturated steam generated by the steam generator 31 is jetted into the heating chamber 33 in a state close to the saturated steam without being heated again.
- this embodiment also relates to a heating cooker that injects saturated water vapor generated in the steam generation unit into the heating chamber via a steam heating device.
- FIG. 8 is a diagram showing a main part of a heating cooker in which the steam generation unit of the present embodiment is used. In FIG. 8, the main body casing is removed.
- the vertical position of the steam generator 31 is substantially the same as the steam heater 32. Then, in the point that the steam generator 31 and the steam heating device 32 are connected by the steam supply pipe 44 that once goes up from the steam generating device 31 side toward the steam heating device 32 side, then the second embodiment. This is different from the case of the steam generation unit.
- the same members as those in the steam generation unit according to the second embodiment are denoted by the same reference numerals as those in FIG. And a different point from the steam generation unit in the said 2nd Embodiment is demonstrated.
- the steam generation device 31 is installed at a position in the vertical direction substantially the same as the steam heating device 32 outside the heating chamber 33. Then, the steam supply port 41 of the steam generator 31 and the steam blow-in port 40 of the steam heating device 32 once go up from the steam generating device 31 side toward the steam heating device 32 side, that is, go upward. They are connected by a curved steam supply pipe 44.
- the height of the portion of the steam supply pipe 44 that has once risen is set to a height at which the boiling water that has jumped into the steam supply pipe 44 cannot be overcome, for example, the water reservoir of the steam generator 31 34, even if boiling water occurs and the boiling water jumps out from the steam supply port 41 of the lid portion 38 into the steam supply pipe 44, the boiling water can get over the place where the steam supply pipe 44 is once raised. Instead, it returns to the water reservoir 34. As a result, the boiling water does not enter the steam heating device 32.
- the steam generation unit 31 and the steam supply pipe 44 constitute the steam generation unit.
- the position in the vertical direction of the steam generator 31 is substantially the same as that of the steam heater 32.
- the vertical position of the steam generator 31 may be higher than that of the steam heater 32.
- the steam supply pipe 44 is configured to once go up from the steam generation device 31 side toward the steam heating device 32 side, and then go up, and the ascending amount of the place where the steam supply pipe 44 is once raised Is set to an amount that does not allow boiling water to rise, the boiling water cannot get over the place where it has once risen, and does not enter the steam heating device 32.
- the steam supply pipe 44 has a shape curved upward.
- the boiling water cannot get over the part of the steam supply pipe 44 that has once risen, and the boiling water is heated by steam. There is no entry into the device 32.
- the boiling water that could not get over the place where the steam supply pipe is climbing is accumulated in a place (hereinafter referred to as a recess) that is curved downward of the steam supply pipe. . Therefore, the boiling water accumulated in the recess of the steam supply pipe is spouted up by the steam pressure of the saturated steam from the steam generating device 31, and there is a possibility that it will get over the place where the steam supply pipe is rising. Is not desirable.
- the concave portion of the steam supply pipe is not preferable because the boiling water accumulates even if it constitutes a part of the steam supply pipe.
- This Embodiment is also related with the heating cooker which injects the saturated water vapor
- FIG. 9 is a diagram showing a main part of a heating cooker in which the steam generation unit of the present embodiment is used. In FIG. 9, the main body casing is removed.
- the steam generation device 31 is installed outside the side wall of the heating chamber 33.
- the position of the steam generator 31 in the vertical direction is substantially the same as that of the steam heater 32, and the second point is that the steam generator 31 and the steam heater 32 are connected by a substantially horizontal steam supply pipe 45.
- This is different from the steam generation unit in the embodiment and the third embodiment.
- the same members as those in the steam generation unit in the second embodiment and the third embodiment are denoted by the same reference numerals as those in FIGS. 7 and 8, and detailed description thereof is omitted. Different points from the steam generation unit in the second embodiment and the third embodiment will be described.
- the steam generator 31 is installed at a position substantially in the same vertical direction as the steam heater 32 outside the heating chamber 33, and the steam supply port 41 of the steam generator 31 and the steam blow-in of the steam heater 32 are used.
- the mouth 40 is connected by a substantially horizontal steam supply pipe 45.
- an upper opening angle 46 having a surface facing the steam blowing port 40 and having an opening in the upper portion is provided in the vicinity of the steam blowing port 40 in the steam heating device 32.
- the upper opening angle 46 is formed by bending a single plate so that the cross section is L-shaped to form two planes. And while making the edge part of one plane separate from the top
- the saturated steam blown from the steam inlet 40 of the steam heating device 32 gets over the one plane of the upper opening angle 46 and is supplied into the steam heating device 32 from the upper opening. Even if bumping occurs in the water reservoir 34 of the steam generator 31 and boiling water jumps out from the steam supply port 41 of the lid 38 into the steam supply pipe 45, the steam heating device 32 is caused by the upper opening angle 46. Intrusion is prevented. Then, the boiling water which has not been able to enter the steam heating device 32 and has accumulated on the upper opening angle 46 is returned to the water reservoir 34 of the steam generator 31 via the steam supply pipe 45.
- the boiling water that has entered the steam heating device 32 falls to the bottom surface of the steam heating device 32 (the top surface of the heating chamber 33), the temperature of the top plate of the heating chamber 33 decreases, and the object to be heated It is possible to prevent the occurrence of heating spots with respect to. Furthermore, it is possible to prevent the boiling water or the water overflowing from the water reservoir 34 from being applied to the steam heater 39 that is turned on and causing a steam explosion or the like.
- the steam generating unit 31, the steam supply pipe 45, and the upper opening angle 46 constitute the steam generating unit.
- the main body portion 37 in the steam generator 31 has a simple configuration in which no protrusions or the like are present in the water reservoir portion 34. Therefore, in the case of forming by metal die casting, a simple mold may be used, which does not lead to an increase in cost. Furthermore, the steam generation part 35 has a simple structure as described above. Therefore, the scale does not easily accumulate in the water reservoir 34, and even if the scale accumulates, it is very easy to remove.
- the steam generator 35 is provided with an object for heating again the saturated steam generated by the steam generator 31 when the steam heater 39 is turned off and the saturated steam is ejected into the heating chamber 33. Not. Therefore, the saturated steam generated by the steam generator 31 is jetted into the heating chamber 33 in a state close to the saturated steam without being heated again.
- the vertical position of the steam generator 31 is set to be substantially the same as that of the steam heater 32.
- the position may be higher than that of the steam heater 32.
- the function of the upper opening angle 46 can prevent the boiling water jumping into the steam supply pipe 45 from entering the steam heating device 32.
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Abstract
Description
蒸気を発生させる蒸気発生装置と、
上記蒸気発生装置によって発生された蒸気が供給される蒸気被供給室と、
上記蒸気発生装置によって発生された蒸気を上記蒸気被供給室に供給するための蒸気供給経路と、
上記蒸気供給経路に設けられると共に、上記蒸気発生装置で突沸が発生した場合に沸騰水が上記蒸気被供給室内に侵入するのを防止する沸騰水侵入防止装置と
を備えたことを特徴としている。
上記蒸気供給経路は、
上記蒸気被供給室の側壁に設置される共に、上記蒸気発生装置によって発生された蒸気が供給されて、この供給された蒸気を上記蒸気被供給室内に噴き出す蒸気噴出部と、
上記蒸気発生装置と上記蒸気噴出部とを接続すると共に、上記蒸気発生装置によって発生された蒸気を上記蒸気噴出部に供給する蒸気供給通路と
を含み、
上記蒸気発生装置を上記蒸気噴出部よりも下方に位置させると共に、上記蒸気供給通路を上記蒸気発生装置側から上記蒸気噴出部側へ上方に向かって延在させることによって、上記蒸気噴出部と上記蒸気供給通路とで上記沸騰水侵入防止装置を構成している。
上記蒸気発生装置と上記蒸気噴出部とを接続すると共に、上記蒸気噴出部内の液体を上記蒸気発生装置に戻すための液戻り通路
を備えている。
上記液戻り通路に介設されると共に、上記蒸気噴出部側から上記蒸気発生装置側への液体の流れを許可する一方、上記蒸気発生装置側から上記蒸気噴出部側への流体の流れを禁止する一方向弁装置
を備えている。
上記蒸気発生装置を上記蒸気被供給室よりも下方に位置させると共に、上記蒸気供給経路を上記蒸気発生装置側から上記蒸気被供給室側へ上方に向かって延在させることによって、上記蒸気供給経路自体で上記沸騰水侵入防止装置を構成している。
上記蒸気発生装置を上記蒸気被供給室よりも上方あるいは略同じ高さに位置させると共に、上記蒸気供給経路を上方に向かって湾曲させて上記蒸気発生装置よりも高い位置を通過させることにより、上記蒸気供給経路自体で上記沸騰水侵入防止装置を構成している。
上記蒸気供給経路には、下方に向かって湾曲した箇所が存在しない。
上記蒸気供給経路は、
上記蒸気被供給室の側壁に設置される共に、上記蒸気発生装置によって発生された蒸気が供給されて、この供給された蒸気を上記蒸気被供給室内に噴き出す蒸気噴出部と、
上記蒸気発生装置と上記蒸気噴出部とを接続すると共に、上記蒸気発生装置によって発生された蒸気を上記蒸気噴出部に供給する蒸気供給通路と
を含み、
上記蒸気噴出部の側面には、上記蒸気被供給室内に蒸気を噴出する蒸気噴出ノズルが設けられており、
上記蒸気噴出部内における上記蒸気噴出ノズルの近傍に設置されると共に、垂直方向に延在して上記蒸気噴出ノズルに対向する第1の面とこの第1の面に連なる第2の面とを有し、上記第1の面の上端は上記蒸気噴出部の天面から離間して蒸気導入口から導入された蒸気を通過させる上部開口を形成する一方、上記第2の面の先端は上記蒸気噴出部の上記側面に密着して取り付けられて、蒸気と沸騰水とを分離する分離板を備え、
上記分離板で上記沸騰水侵入防止装置を構成している。
この発明の蒸気発生ユニットを備え、
上記蒸気被供給室は、上記蒸気供給経路から供給された蒸気によって被加熱物を加熱調理するための加熱室、あるいは、上記蒸気供給経路から供給された蒸気を加熱して過熱蒸気を生成して上記加熱室に噴き出す蒸気加熱装置である
ことを特徴としている。
図1および図2は、本実施の形態の蒸気発生ユニットが用いられた加熱調理器における基本構成を示す模式図である。但し、図1は正面側から見た縦断面図であり、図2は側面側から見た縦断面図である。
上記第1実施の形態においては、上記蒸気発生装置3を加熱室2の側壁に設置して、蒸気発生装置3で発生された飽和水蒸気を直接加熱室2内に噴き出すようにしている。これに対して、加熱室上に蒸気加熱ヒータを内蔵した蒸気加熱装置を載置し、加熱室外に設置された蒸気発生部で発生された飽和水蒸気を、上記蒸気加熱装置を介して加熱室内に噴射する加熱調理器がある。ここで、上記蒸気加熱ヒータをオンすれば、加熱室内には100℃以上の過熱状態にまで加熱された過熱蒸気が噴射される。また、上記蒸気加熱ヒータをオフすれば、加熱室内にはそのまま飽和水蒸気が噴射される。本実施の形態は、蒸気発生部で発生された飽和水蒸気を蒸気加熱装置を介して加熱室内に噴射する加熱調理器に関する。
本実施の形態も、上記第2実施の形態の場合と同様に、蒸気発生部で発生された飽和水蒸気を蒸気加熱装置を介して加熱室内に噴射する加熱調理器に関する。
本実施の形態も、蒸気発生部で発生された飽和水蒸気を蒸気加熱装置を介して加熱室内に噴射する加熱調理器に関する。
2,33…加熱室、
3,31…蒸気発生装置、
9,34…水溜部、
10,35…蒸気発生部、
11,36…水加熱ヒータ、
14…蒸気噴出部、
15…蒸気噴出ノズル、
18,42,44,45…蒸気供給管、
19…分離板、
22…液戻り管、
23…チェック弁、
32…蒸気加熱装置、
39…蒸気加熱ヒータ、
43…蒸気吹出口、
46…上部開口アングル。
Claims (9)
- 蒸気を発生させる蒸気発生装置(3,31)と、
上記蒸気発生装置(3,31)によって発生された蒸気が供給される蒸気被供給室(2,32)と、
上記蒸気発生装置(3,31)によって発生された蒸気を上記蒸気被供給室(2,32)に供給するための蒸気供給経路(14,18,42,44,45)と、
上記蒸気供給経路(14,18,42,44)に設けられると共に、上記蒸気発生装置(3,31)で突沸が発生した場合に沸騰水が上記蒸気被供給室(2,32)内に侵入するのを防止する沸騰水侵入防止装置と
を備えたことを特徴とする蒸気発生ユニット。 - 請求項1に記載の蒸気発生ユニットにおいて、
上記蒸気供給経路(14,18)は、
上記蒸気被供給室(2)の側壁に設置される共に、上記蒸気発生装置(3)によって発生された蒸気が供給されて、この供給された蒸気を上記蒸気被供給室(2)内に噴き出す蒸気噴出部(14)と、
上記蒸気発生装置(3)と上記蒸気噴出部(14)とを接続すると共に、上記蒸気発生装置(3)によって発生された蒸気を上記蒸気噴出部(14)に供給する蒸気供給通路(18)と
を含み、
上記蒸気発生装置(3)を上記蒸気噴出部(14)よりも下方に位置させると共に、上記蒸気供給通路(18)を上記蒸気発生装置(3)側から上記蒸気噴出部(14)側へ上方に向かって延在させることによって、上記蒸気噴出部(14)と上記蒸気供給通路(18)とで上記沸騰水侵入防止装置を構成した
ことを特徴とする蒸気発生ユニット。 - 請求項2に記載の蒸気発生ユニットにおいて、
上記蒸気発生装置(3)と上記蒸気噴出部(14)とを接続すると共に、上記蒸気噴出部(14)内の液体を上記蒸気発生装置(3)に戻すための液戻り通路(22)
を備えたことを特徴とする蒸気発生ユニット。 - 請求項3に記載の蒸気発生ユニットにおいて、
上記液戻り通路(22)に介設されると共に、上記蒸気噴出部(14)側から上記蒸気発生装置(3)側への液体の流れを許可する一方、上記蒸気発生装置(3)側から上記蒸気噴出部(14)側への流体の流れを禁止する一方向弁装置(23)
を備えたことを特徴とする蒸気発生ユニット。 - 請求項1に記載の蒸気発生ユニットにおいて、
上記蒸気発生装置(31)を上記蒸気被供給室(32)よりも下方に位置させると共に、上記蒸気供給経路(42)を上記蒸気発生装置(31)側から上記蒸気被供給室(32)側へ上方に向かって延在させることによって、上記蒸気供給経路(42)自体で上記沸騰水侵入防止装置を構成した
ことを特徴とする蒸気発生ユニット。 - 請求項1に記載の蒸気発生ユニットにおいて、
上記蒸気発生装置(31)を上記蒸気被供給室(32)よりも上方あるいは略同じ高さに位置させると共に、上記蒸気供給経路(44)を上方に向かって湾曲させて上記蒸気発生装置(31)よりも高い位置を通過させることによって、上記蒸気供給経路(44)自体で上記沸騰水侵入防止装置を構成した
ことを特徴とする蒸気発生ユニット。 - 請求項6に記載の蒸気発生ユニットにおいて、
上記蒸気供給経路(44)には、下方に向かって湾曲した箇所が存在しない
ことを特徴とする蒸気発生ユニット。 - 請求項1に記載の蒸気発生ユニットにおいて、
上記蒸気供給経路(14,18)は、
上記蒸気被供給室(2)の側壁に設置される共に、上記蒸気発生装置(3)によって発生された蒸気が供給されて、この供給された蒸気を上記蒸気被供給室(2)内に噴き出す蒸気噴出部(14)と、
上記蒸気発生装置(3)と上記蒸気噴出部(14)とを接続すると共に、上記蒸気発生装置(3)によって発生された蒸気を上記蒸気噴出部(14)に供給する蒸気供給通路(18)と
を含み、
上記蒸気噴出部(14)の側面には、上記蒸気被供給室(2)内に蒸気を噴出する蒸気噴出ノズル(15)が設けられており、
上記蒸気噴出部(14)内における上記蒸気噴出ノズル(15)の近傍に設置されると共に、垂直方向に延在して上記蒸気噴出ノズル(15)に対向する第1の面とこの第1の面に連なる第2の面とを有し、上記第1の面の上端は上記蒸気噴出部(14)の天面から離間して蒸気導入口(17)から導入された蒸気を通過させる上部開口を形成する一方、上記第2の面の先端は上記蒸気噴出部(14)の上記側面に密着して取り付けられて、蒸気と沸騰水とを分離する分離板(19)を備え、
上記分離板(19)で上記沸騰水侵入防止装置を構成したことを特徴とする蒸気発生ユニット。 - 請求項1に記載の蒸気発生ユニットを備え、
上記蒸気被供給室(2,32)は、上記蒸気供給経路(14,18)から供給された蒸気によって被加熱物を加熱調理するための加熱室(2)、あるいは、上記蒸気供給経路(42,44,45)から供給された蒸気を加熱して過熱蒸気を生成して上記加熱室(33)に噴き出す蒸気加熱装置(32)である
ことを特徴とする蒸気調理器。
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- 2010-10-08 US US13/500,649 patent/US8850968B2/en not_active Expired - Fee Related
- 2010-10-08 CN CN201080045181.XA patent/CN102549337B/zh not_active Expired - Fee Related
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WO2017126644A1 (ja) * | 2016-01-22 | 2017-07-27 | 京セラ株式会社 | 過熱水蒸気発生ユニット |
US20220125233A1 (en) * | 2020-10-26 | 2022-04-28 | Ningbo Careline Electric Appliance Co., Ltd. | Steam-type air fryer |
US11963630B2 (en) * | 2020-10-26 | 2024-04-23 | Ningbo Careline Electric Appliance Co., Ltd. | Steam-type air fryer |
Also Published As
Publication number | Publication date |
---|---|
JP4707758B2 (ja) | 2011-06-22 |
US8850968B2 (en) | 2014-10-07 |
US20120199015A1 (en) | 2012-08-09 |
JP2011080712A (ja) | 2011-04-21 |
CN102549337B (zh) | 2015-01-21 |
CN102549337A (zh) | 2012-07-04 |
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