JP2010096388A - Superheated steam generator and steam cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a superheated steam generator enabling reduction in the size by reducing the size of a steam heating heater and a steam cooker. <P>SOLUTION: A portion 25a-2 of a heating element 25a in the vicinity of a terminal 25b of the steam heating heater 25 of a steam heating part 20 of the superheated steam generator 100 is protruded from a casing 21 of the steam heating part 20. The protruded portion 25a-2 of the heating element 25a is surrounded by saturated steam 8 made to flow in to a suction port 22 of the casing 21 and effectively cooled. The portion 25a-2 of the heating element 25a in the vicinity of the terminal 25b of the steam heating heater 25a is effectively cooled also by saturated steam 8 immediately after it is sucked from the suction port 22 of the casing 21 of the steam heating part 20 to inside of the casing 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a superheated steam generator and a steam cooker that generate superheated steam used for cooking or the like.

  Conventionally, as this type of superheated steam generator, there is one provided with a steam generating section having a casing and a steam generating heater, and a steam heating section having a casing and a steam heating heater (Patent Document 1: Japanese Patent Application Laid-Open No. Hei 8- No. 49854, FIG. 8).

  The steam at the bottom of the casing of the steam generating section is heated by a steam generating heater to generate steam, while the steam is heated by the steam heating heater in the casing of the steam heating section to generate superheated steam. Yes.

By the way, in the conventional superheated steam generator, both terminals connected to both ends of the heating element of the steam heater are outside the casing, but one terminal of both terminals is close to the superheated steam outlet of the casing. It is connected to the part of the high temperature heating element. Therefore, it is necessary to increase the distance between the portion of the high-temperature heating element and the terminal outside the casing, the size of the steam heater is increased, and the superheated steam generator cannot be downsized. There is a problem that the cooker cannot be downsized.
JP-A-8-49854, FIG.

  Therefore, an object of the present invention is to provide a superheated steam generator and a steam cooker that can be downsized by reducing the size of the steam heater.

In order to solve the above problems, the superheated steam generator of the present invention is:
A steam generation unit having a casing for containing water, and a water heater for heating the water to generate steam;
A steam heating heater having a heating element and a terminal for heating the steam from the steam generating section to generate superheated steam, and a casing for housing at least a part of the heating element of the steam heating heater and the superheated steam. A steam heating unit;
The heating element is provided with a terminal cooling structure that preferentially applies steam from the steam generating section to the heating element near the terminal of the steam heater.

  In the superheated steam generator configured as described above, the steam generating heater of the steam generating section heats water in the casing to generate steam. And the steam from this steam generation part is heated with the steam heater of a steam heating part, and superheated steam suitable for cooking etc. is generated.

  At this time, the steam from the steam generating portion is preferentially applied to the portion of the heating element near the terminal of the steam heater by the terminal cooling structure rather than the superheated steam.

  Thus, since the portion of the heating element in the vicinity of the terminal is cooled by the steam from the steam generating section, the distance between the cooled heating element portion and the terminal outside the casing can be shortened, and the steam heating The heater can be reduced in size, and thus the superheated steam generator can be reduced in size.

  Moreover, since the saturated steam which cooled the part of the heat generating body near the said terminal is heated conversely, energy is not wasted and efficiency can be improved.

In one embodiment,
The casing of the steam heating unit is
One end has a suction port for sucking steam from the steam generation part, and the other end has a spout for ejecting superheated steam,
The part of the heating element near the terminal of the steam heater is located in the vicinity of the suction port.

  According to the embodiment, since the portion of the heating element near the terminal of the steam heater is located near the suction port, steam in the middle of being sucked from the suction port into the casing of the heating steam generator Alternatively, it is effectively cooled by the steam sucked into the casing.

  Therefore, the distance between the portion of the heating element near the terminal of the steam heater and the terminal outside the casing can be shortened, and the superheated steam generator can be miniaturized.

In one embodiment,
The outside of at least a part of the casing of the steam heating unit is
It is enclosed by the steam produced | generated by the said steam generation part.

  According to the above embodiment, at least a part of the casing of the steam heating unit that is heated to high temperature by the superheated steam inside is wrapped with the saturated steam generated by the steam generating unit, and the casing of the steam heating unit is cooled. Therefore, the outside of the casing of the steam heating unit does not become high temperature, and the temperature of the outer shell of the superheated steam generator does not become high, and the heat insulating structure can be simplified.

  On the other hand, since the saturated steam that wraps at least a part of the casing of the steam heating unit is heated by the casing of the steam heating unit, energy is not wasted and high efficiency can be achieved.

In one embodiment,
At least a part of the casing of the steam heating unit is disposed inside the casing of the steam generation unit.

  According to the embodiment, since at least a part of the casing of the steam heating unit is disposed inside the casing of the steam generation unit, the outer side of at least a part of the casing of the steam heating unit is the steam generation unit. The casing of the steam heating unit is cooled by being wrapped with the generated saturated steam, and as a result, the temperature of the outer shell of the superheated steam generator does not become high, and the heat insulating structure can be simplified.

  Further, since the saturated steam that wraps at least a part of the casing of the steam heating unit is heated by the casing of the steam heating unit, energy is not wasted and high efficiency can be achieved.

  Furthermore, since at least a part of the casing of the steam heating unit is disposed inside the casing of the steam generation unit, the structure is compact and the size can be reduced.

In one embodiment,
The terminal cooling structure is
A portion of the heating element in the vicinity of the terminal of the steam heater is protruded and wrapped with steam from the steam generating part, and includes a casing of the steam heating unit that covers a portion of the heating element other than the heating element in the vicinity of the terminal. ,
The casing of the steam heating unit has a suction port located in the vicinity of the portion of the heating element protruding from the casing of the steam heating unit.

  According to the embodiment, the portion of the heating element in the vicinity of the terminal of the steam heater protrudes from the casing of the steam heating portion, and the portion of the heating element protruding from the casing is in the middle of flowing into the suction port of the casing The heating element in the vicinity of the terminal is cooled by the saturated steam immediately after flowing into the suction port of the casing.

  Therefore, the distance between the portion of the heating element in the casing of the heater and the terminal of the heater outside the casing can be shortened, and the superheated steam generator can be downsized.

  In addition, the saturated steam that has cooled the portion of the heating element in the vicinity of the terminal of the steam heater that protrudes from the casing of the steam heater is heated in reverse, so energy is not wasted and high efficiency can be achieved. it can.

The steam cooker of this invention
The above-described superheated steam generator;
The superheated steam is supplied from the superheated steam generator, and a heating chamber for storing the cooking object is provided.

  According to the steam cooker of the said structure, since the said superheated steam generator is small and compact, the whole becomes small and compact.

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

  As shown in FIG. 1, this steam cooker includes a superheated steam generator 100 that generates superheated steam, a heating chamber 200 that is supplied with superheated steam from the superheated steam generator 100, and accommodates an object to be cooked. Is provided.

  The superheated steam generator 100 includes a steam generator 10 that generates water by heating water and a steam heater 20 that generates superheated steam by heating the steam.

  The steam generation unit 10 is composed of a substantially box-shaped casing 1 and a water heater 5, and the water heater 5 heats the water 3 accommodated in the lower part 2 of the casing 1 to produce saturated steam 8. Is generated.

  The water heater 5 includes a heating element 5a and a terminal 5b connected to the heating element 5a, and most of the heating element 5a is submerged in the water 3 in the lower part 2 of the casing 1. On the other hand, the terminal 5 b is located outside the casing 1.

  On the other hand, the steam heating unit 20 includes a substantially cylindrical casing 21 and a steam heater 25 that heats the steam flowing into the casing 21 to form superheated steam 27. Most of the cylindrical casing 21 of the steam heating unit 20 is arranged inside the box-shaped casing 1 of the steam generating unit 10, and the outside of the most of the cylindrical casing 21 of the steam heating unit 20. Is wrapped with saturated steam 8 of about 100 ° C. from the steam generating section 10. The other part of the cylindrical casing 21 of the steam heating unit 20 is disposed outside the box-shaped casing 1 of the steam generation unit 10.

  The steam heater 25 includes a heating element 25a and a terminal 25b connected to the heating element 25a, and most of the heating element 25a is accommodated in the substantially cylindrical casing 21. On the other hand, the other part 25 a-2 of the heating element 25 a is located outside the substantially cylindrical casing 21. A terminal 25 b of the steam heater 25 is located outside the box-shaped casing 1 of the steam generator 10. The temperature of the portion 25a-1 of the heating element 25a of the steam heater 25 in the casing 21 of the steam heating unit 20 is, for example, 600 ° C.

  At one end of the substantially cylindrical casing 21 of the steam heating unit 20, a suction port 22 including a ring-shaped opening portion 22 a around the heating element 25 a and a notch-shaped opening portion 22 b is provided. Is positioned in the vicinity of the terminal 25b of the steam heater 25. The suction port 22 sucks in the saturated steam 8 of about 100 ° C. from the steam generating section 10, and the vicinity of the terminal 25 b of the steam heater 25 by the saturated steam 8 being sucked in and the saturated steam 8 just after being sucked in. The portion 25a-2 of the heating element 25a is cooled, and thus the terminal 25b is cooled and protected.

  The arrangement structure of the casing 21 and the steam heater 25 of the steam heating unit 20 constitutes an example of a terminal cooling structure. More specifically, the terminal cooling structure includes the casing 21 of the upper steam heating unit 20, the portion 25a-2 of the heating element 25a that protrudes from the casing 21 in the vicinity of the terminal 25b of the steam heater 25, and the portion 25a. 2 has a suction port 22 of the casing 21 that sucks the saturated steam 8 in order to apply and wrap the saturated steam 8 from the steam generating unit 10 with priority over the superheated steam 27.

  On the other hand, a jet outlet 23 is provided at the other end of the casing 21 of the steam heating unit 20, and superheated steam 27 of, for example, 300 ° C. to 400 ° C. heated by the steam heater 25 in the casing 21 from the jet outlet 23. I try to spout. Most of the substantially cylindrical casing 21 of the steam heating unit 20 is located in the box-shaped casing 1 of the steam generation unit 10, and around the majority of the casing 21 in the box-shaped casing 1. Since it is wrapped with the saturated steam 8, the temperature of the outer shell of the superheated steam generator 100 is 100 ° C or lower.

  Therefore, the heat insulation structure (not shown) of the outer shell of the superheated steam generator 100 can be simplified, the size can be reduced, and high efficiency can be achieved by reducing heat loss.

  The superheated steam 27 ejected from the steam generator 100 and the jet outlet 23 of the steam heating unit 20 is sucked by, for example, a fan or an ejector (not shown), supplied to the heating chamber 200 via a passage (not shown), and this superheat The cooking object (not shown) in the heating chamber 200 is cooked by the steam 27.

  According to the steam cooker having the above configuration, the portion 25a-2 of the heating element 25a in the vicinity of the terminal 25b of the steam heater 25 of the steam heating unit 20 of the superheated steam generator 100 protrudes from the casing 21 of the steam heating unit 20, The portion 25a-2 of the heating element 25a protruding from the casing 21 is wrapped and cooled by the saturated steam 8 flowing into the suction port 22 of the casing 21. The portion 25a-2 of the heating element 25a in the vicinity of the terminal 25b of the steam heater 25 is preferentially applied with the saturated steam 8 from the superheated steam 27 to be cooled.

  Furthermore, the portion 25a-2 of the heating element 25a in the vicinity of the terminal 25b of the steam heater 25 is also saturated by the saturated steam 8 immediately after being sucked into the casing 21 from the suction port 22 of the casing 21 of the steam heating unit 20. Effectively cooled.

  As described above, the portion 25a-2 of the heating element 25a in the vicinity of the terminal 25b of the steam heater 25 is cooled by the saturated steam 8 from the steam generating section 10, and therefore the portion 25a of the cooled heating element 25a. -2 and the terminal 25b outside the casing 1 can be shortened, the steam heater 25 can be miniaturized, the steam generator 100 can be miniaturized, and the steam cooker can be miniaturized.

  Further, since the saturated steam 8 that has cooled the portion 25a-2 of the heating element 25a in the vicinity of the terminal 25b of the steam heater 25 is heated in reverse, energy is not wasted and high efficiency can be achieved.

  In the above embodiment, most of the casing 21 of the steam heating unit 20 is disposed inside the casing 1 of the steam generation unit 10, so that the outside of the casing 21 of the steam heating unit 20 is generated by the steam generation unit 10. The casing 21 of the steam heating unit 20 is cooled by being wrapped with the saturated steam 8, and as a result, the temperature of the outer shell of the superheated steam generator 100 does not become high, and the heat insulating structure can be simplified.

  In addition, since the saturated steam 8 enclosing most of the casing 21 of the steam heating unit 20 is heated by the casing of the steam heating unit 20, energy is not wasted and high efficiency can be achieved.

  Furthermore, in the above embodiment, most of the substantially cylindrical casing 21 of the steam heating unit 20 is disposed inside the substantially box-shaped casing 21 of the steam generating unit 10, and thus the structure is compact. Can be downsized.

  In the said embodiment, although the part of the casing 21 of the steam heating part 20 was arrange | positioned in the casing 1 of the said steam generation part 10, it seems that all the casings of a steam heating part are arrange | positioned in the casing of a steam generation part. It may be.

  Moreover, in the said embodiment, the said terminal cooling structure has the casing 21 of the steam heating part 20 which makes the part 25a-2 of the heat generating body 25a vicinity of the terminal 25b of the said steam heater 25 protrude, and this projecting heat generating body 25a. Although the suction port 22 of the casing 21 located in the vicinity of the portion 25a-2 is not provided, the suction port of the casing of the steam heating unit is not provided in the vicinity of the portion protruding from the casing of the heating element of the steam heater. The heating element protruding from the casing may be simply wrapped with saturated steam. In short, the terminal cooling structure may be any structure as long as the steam from the steam generating part is preferentially applied to the portion of the heating element near the terminal of the steam heater rather than the superheated steam. .

  Moreover, in the said embodiment, although most casing 21 of the steam heating part 20 was arrange | positioned inside the casing 1 of the steam generation part 10, and was made compact, a steam heating part is set inside the casing of a steam generation part. You may make it wrap the outer side of the casing of a steam heating part with the steam produced | generated by the steam generation part using another casing, without arrange | positioning a casing. More specifically, the casing of the steam generation unit and the casing of the steam heating unit are arranged side by side, and the outside of the casing of the steam heating unit that is heated by the superheated steam inside is surrounded by another casing (not shown). The saturated steam generated in the steam generating part is guided inside, the heating element near the terminal of the steam heater is cooled with this saturated steam, the steam heater is reduced in size, and the casing of the steam heating part May be wrapped with saturated steam and cooled so that the temperature of the outer shell of the steam generator does not become high, and the heat insulating structure may be simplified.

  Also in this case, the saturated steam wrapping the outside of the casing of the steam heating unit is heated by the casing of the steam heating unit, so that energy is not wasted and high efficiency can be achieved.

  Moreover, in the said embodiment, although the suction inlet 22 of the casing 21 of the said steam heating part 20 consists of the ring-shaped opening part 22a and the notch-shaped opening part 22b, round holes, a rectangular hole, slit shape, etc. Any shape and number may be used.

  Moreover, the structure of the steam generation part, steam heating part, and heating chamber of the steam cooker of this invention is not limited to the embodiment shown in FIG. Except for using a terminal cooling structure that preferentially applies steam from the steam generating section, for example, those described in JP-A-8-49854, JP-A-2006-38313, etc. may be used. . In short, as long as the heating element near the terminal of the steam heater has a terminal cooling structure that preferentially applies steam from the steam generator over superheated steam, the steam generator, steam heater, and heating chamber The configuration may be anything.

FIG. 1 is a schematic cross-sectional view of a steam cooker according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,21 Casing 2 Bottom part 3 Water 5 Water heater 5a, 25a Heating element 5b, 25b Terminal 8 Steam 10 Steam generating part 20 Steam heating part 22 Suction port 23 Jet outlet 27 Superheated steam 100 Superheated steam generator 200 Heating chamber

Claims (6)

A steam generation unit having a casing for containing water, and a water heater for heating the water to generate steam;
A steam heating heater having a heating element and a terminal for heating the steam from the steam generating section to generate superheated steam, and a casing for housing at least a part of the heating element of the steam heating heater and the superheated steam. A steam heating unit;
A superheated steam generator, comprising: a terminal cooling structure that preferentially applies steam from the steam generating section to a portion of a heating element near a terminal of the steam heater over the superheated steam. The superheated steam generator according to claim 1,
The casing of the steam heating unit is
One end has a suction port for sucking steam from the steam generation part, and the other end has a spout for ejecting superheated steam,
The superheated steam generator, wherein a portion of the heating element in the vicinity of the terminal of the steam heater is located in the vicinity of the suction port. The superheated steam generator according to claim 1 or 2,
The outside of at least a part of the casing of the steam heating unit is
A superheated steam generator, wherein the steam generator is wrapped with steam generated by the steam generator. In the superheated steam generator of Claim 3,
At least a part of the casing of the steam heating unit is disposed inside the casing of the steam generation unit. In the superheated steam generator as described in any one of Claim 1 to 4,
The terminal cooling structure is
A portion of the heating element in the vicinity of the terminal of the steam heater is protruded and wrapped with steam from the steam generating unit, and includes a casing of the steam heating unit that covers a portion of the heating element other than the heating element in the vicinity of the terminal. ,
The casing of the steam heating unit has a suction port located in the vicinity of a portion of the heating element protruding from the casing of the steam heating unit. The superheated steam generator according to any one of claims 1 to 5,
A steam cooker characterized by comprising a heating chamber in which superheated steam is supplied from the superheated steam generator and which accommodates an object to be cooked.

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