JPH061092Y2 - Steam generator and steaming apparatus using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a steam generator and a steam heat treatment apparatus using the steam heat generator. More specifically, the frozen food is thawed by exposing it to steam or frozen food or chilled food. Used to play,
The present invention also relates to a steam generator used for steaming steamed food such as red rice and chawanmushi, and a steam heat treatment apparatus using the steam generator.

(Prior Art) In a conventional steamer, steam generated by heating water is directly applied to an object to be processed to regenerate or steam the object to be processed.

Further, a microwave oven is often used for thawing frozen foods or regenerating frozen foods or chilled foods.

(Problems to be solved by the invention) In a conventional steamer, steam generated by heating water acts on an object to be processed as it is, so the steam is at most
Since the temperature is around 100 ° C, the heating efficiency is poor and the processing time becomes long. Therefore, it cannot cope with the situation in which frozen foods, especially frozen plaques, which must be immediately thawed and regenerated according to the customer's order. Also, since vapor has large particles, the object to be treated tends to be sticky. It is conceivable to raise the steam temperature by using high pressure to generate steam, but the equipment is large and too expensive, and it is difficult to use and manage.

Using a microwave oven is simpler than using a steamer, and the time can be shortened. However, even if it is said that the time is shortened, at -15 ° C
It takes about 15 minutes to regenerate 200g of frozen food to about 85 ° C, so it is especially desirable to shorten the time in business.
Also, in the case of a microwave oven, some of them are not suitable because the water will fly out, and it will take time and effort to wrap them.

Even if the frozen pilaf is regenerated while mixing on a frying pan, it will take time and work will have to be done in intervals, so it is the easiest method, but it is not suitable for sales.

Therefore, the present invention obtains fine steam at high temperature with a simple device and makes it work on an object to be processed easily and in a short time.
Another object of the present invention is to provide a steam generator that can be steam-heat treated without stickiness and is suitable for various purposes, and a steam-heat treatment apparatus using the steam generator.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention provides a minute water supply means for providing a constant quantity of water in a small amount at the upper part of a combustion chamber by providing a water receiving recess with an upward opening. Is a first feature, and the second feature is that the steam diffusion passage communicating with the opening of the water receiving recess is formed so as to bypass the exhaust passage from the combustion chamber. .

Further, the present invention has a third feature that the vapor diverging passage in the second feature is opened in a steaming heat treatment section for subjecting an object to be steamed to steam heat treatment.

(Operation) In the first feature, a small amount of water is supplied from the minute water supply means to the water receiving concave portion in a small amount, and the water is heated by being exposed to the combustion heat in the combustion chamber. It can be instantly vaporized within and continuously generate vapor. The generated steam tries to diverge linearly from its origin,
Since the upward opening of the water receiving recess is restricted, it cannot easily escape from the water receiving recess, and repeatedly collides with each part in the water receiving recess to create a disturbing state, and fragmentation and reheating are repeated, so fine particles Moreover, it can be generated as high-temperature steam through the opening.

In the second feature, since the steam generated from the opening is diffused to the steam diverging passage bypassing the exhaust passage from the combustion chamber, the diverted steam is repeatedly collided with the respective portions due to the bending of the bypass of the steam diverging passage. Further, it is possible to measure further subdivision, and it is possible to reheat repeatedly by the waste heat given from the exhaust passage each time. Therefore, it is possible to further increase the atomization of steam and the increase in temperature.

In the third feature, since the high-temperature fine steam radiated to the vapor divergence passage is directly discharged to the steaming heat treatment section, the high-temperature fine steam is allowed to efficiently act on the object to be processed and well penetrated therein without excess moisture donation therein. Thawing, regenerating, and steaming of frozen foods can be achieved in a short time without abnormal stickiness.

(Embodiment) A first embodiment of the present invention shown in FIGS. 1 to 3 will be described. As shown in FIGS. 1 and 2, a grill 2 is provided on the upper surface of the cooking table 1 and the cooking table 1 facing the grill 2 is provided.
A combustion chamber 3 is provided in the lower part of the. The combustion chamber 3 is open at the bottom, and the opening 4 faces the annular recess 8 around the burner hole 7 formed in the juice pan 6 of the domestic gas stove 5 that is commercially available. The flame from 9 is surely received in the combustion chamber 3. The lower end of the peripheral wall 10 of the cooking table 1 is the gas stove 5
The inner flange 11 fits on the outer periphery of the gas stove 5
Stabilized in use by mounting on top.

A water receiving recess 13 as shown in FIGS. 1 and 2 is formed at one central location on the top plate 12 of the combustion chamber 3. The water receiving recess 13 is formed by providing a slit-shaped opening 14 on the upper portion of the pipe.
No. 14 is smaller than the pipe diameter.
Both sides of the water receiving recess 13 are V-shaped reflecting surfaces 15. A water supply pipe 16 is connected to the water receiving recessed portion 13. The water supply pipe 16 has a funnel-shaped water receiving port 17 at a position higher than the water receiving recessed part 13 and traces a position lower than the water receiving recessed part 13 on the way. As a result, it is assumed that the water supply pipe 16 is supplied with water so as to maintain a constant water level, and water is supplied to the water receiving concave portion 13 by a predetermined minute amount by the head pressure of the height H, but the water receiving pipe 16 receives the water receiving concave portion. It is possible to supply water quietly in a state that springs up to 13.

The supplied water is exposed to the combustion heat in the combustion chamber 3 in the water receiving concave portion 13, and the amount of the supplied water is set so that it is instantly evaporated by the heating at that time. For example, it is about 1 g / sec, and the above H is set to satisfy this. On the other hand, water pipe 16
In order to keep the above H at all times, the water consumption in the water receiving recess 13
Water supply for 1 g / sec is performed by the minute amount water supply means 18. The water supply means 18 has a solenoid valve 22 and is opened and closed in a timely manner by a signal line of only the switch 19 or is opened in a timely manner by a signal line having a switch 20 and a timer 21 and then a timer 21.
Is working and can be closed. The water supply port of the water supply means 18 is a minute metering nozzle 24, and the amount of water supply can be set by setting the flow rate of the nozzle 24.

The water supply means 18 further has a magnetic processor 23, which magnetizes and purifies the water to be supplied, and supplies it as a high-quality product. As a result, clogging of the nozzle 24 can be greatly reduced.

From the top of the top plate 12 of the combustion chamber 3 to the grill 2 water receiving recess 13
Is used as a steam divergence passage 26, and steam generated in the water receiving recess 13 diverges into the steam divergence passage 26 so that the grill 2
It is designed to blow out from.

An exhaust passage from the combustion chamber 3 is provided on the way to the vapor diffusion passage 26.
27 is crossed, and the vapor diffusion passage 26 is shaped so as to bypass the exhaust passage 27. Exhaust passage 27 is combustion chamber 3
Has a bypass path 27a from the above to the crossing portion to improve exhaust of the entire combustion chamber 3 and prevent incomplete combustion.

The grill 2 is formed by arranging a mountain-shaped parallel lattice 2a and a V-shaped parallel lattice 2b in a staggered manner in two stages and forming a block by a frame body 2c. The grill 2 is detachably fitted into the opening 28 on the upper surface of the cooking table 1. It is supposed to be crowded. Therefore, the droplets falling from the object to be processed are guided by the grid 2a onto the grid 2b so as to collect on the grid 2b, but after use, the grill 2 can be removed and washed in a circle. The grill 2 can also be arranged so that the grids 2a and 2b can be further disassembled.

The grill 2 is slightly lower than the upper edge of the opening 28, and the cooking container 30 is fitted into the step 29 at the same level as the grill 2 of the opening 28, and all the steam blown out from the grill 2 is inside the container 30. To enter. The bottom of the container 30 is reticulated or porous to receive vapor.

As shown in FIG. 3, the burner 9 omits the flame holes on the exhaust passage 27 side to avoid the disadvantage that the combustion heat immediately escapes to the exhaust passage 27. Further, the burner 9 has a pilot fire device 9a, which is convenient for the entire ignition, and can also be used for preheating to improve the rise to the normal use state. For safety, the gas supply is automatically stopped or automatically ignited when the lamp is turned off. Since all of them are publicly known, the description will be omitted.

The burner 9 may be of a type used by being incorporated in the cooking table 1.

The water supplied to the water receiving concave portion 13 in minute amounts is instantly vaporized and steam is continuously generated. The generated steam tends to diverge linearly from the point of generation, but the opening 14 of the water receiving recess 13 is narrowed and cannot easily escape to the steam diverging passage 26. For this reason, the steam repeatedly collides with each part in the water receiving recess 13 to be in a disturbed state, is subdivided, and is reheated,
It becomes fine high temperature steam and passes through the opening 14 to the steam diverging passage 26. The released fine high-temperature steam collides with the lower surface wall of the exhaust passage 27, bounces back, and collides with the top plate 12 of the combustion chamber 3 repeatedly while passing around the exhaust passage 27 and equalized by the throttle portion 31. Blow out from the grill 2 after aging. At this time, the V-shaped reflecting surface 15 of the top plate 12 has the function of increasing the number of rebound collisions of the vapor.

Therefore, the high-temperature fine steam that has exited the water receiving recessed portion 13 is further subdivided by repeated collisions while passing through the steam diffusion passage 26, and the waste heat is reused by the collision with the exhaust passage 26 and the radiant heat from the exhaust passage 26. It has been heated to a higher temperature. Therefore, the steam blown from the grill 2 is invisible and completely gasified, and the object to be processed can be uniformly processed to a desired degree in a very short time without stickiness. .

According to the experiment, in the case of the present embodiment, when 200 g of the object to be treated was steam-heated at -15 ° C, it took 1 minute to regenerate it to about 85 ° C.
It only took about 30 seconds. At this time, there was no processing unevenness or temperature unevenness in the object to be processed. Therefore, it is sufficient for commercial use.

Further, when the gas supply amount to the burner 9 is reduced by the cock 35, the temperature of the generated steam becomes lower and the particles become larger. Depending on such a degree of adjustment, it is possible to obtain steam suitable for thawing and regenerating frozen noodles and frozen meat buns. Further, such adjustment can be performed by changing the amount of water supply, or both the amount of water supply and the amount of gas supply can be adjusted and dealt with.

In the second embodiment of the present invention shown in FIG. 4, the rod 37 is used to control the movement of the operation knob 35a of the cock 35 and the movement of the operation lever of the rotary solenoid 36 for adjusting the opening of the solenoid valve 22 provided in the water supply means 18. It is linked by. As a result, the gas supply amount and the water supply amount can be adjusted simultaneously with a certain balance.

(Effects of the Invention) According to the present invention, firstly, a small amount of water is supplied to the water receiving concave portion in small amounts by a small amount, and the water is heated by the heat of combustion in the combustion chamber to be vaporized. Although the steam to be released tends to diverge linearly from the point of occurrence, it does not easily escape from the water receiving recess because the upward opening of the water receiving recess is restricted, and it repeatedly collides with each part in the water receiving recess. Since it is in a disturbed state and fragmentation and reheating are repeated, it can be generated as fine particles and high-temperature steam through the opening, and it is said that frozen food is thawed and regenerated, steamed steamed food is said in a short time. It can be achieved without making the object to be treated sticky.

Secondly, since the steam generated from the opening is diverged to the steam diverging passage bypassing the exhaust passage from the combustion chamber, the diverted steam is repeatedly collided with the respective portions due to the bend of the bypass of the steam diverging passage. Can be further subdivided, and can be reheated repeatedly by the waste heat provided from the exhaust passage each time, which is advantageous for the above treatment.

Thirdly, since the high-temperature fine steam radiated to the vapor divergence passage is directly discharged to the steaming heat treatment section, the high-temperature fine steam is allowed to efficiently act on the object to be treated and well penetrated therein without excessive moisture donation. The processing can be achieved more efficiently and successfully.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a first embodiment of the present invention, FIG. 2 is a vertical sectional side view, FIG. 3 is a plan view of a burner, and FIG. 4 is a cock and a rotary according to a second embodiment of the present invention. It is a top view of a solenoid. 2 ………………………… Grill 3 ……………………… Combustion chamber 13 ………………………… Water receiving recess 14 ……………………… Opening 16 …… ………………… Water supply pipe 18 ……………………………… Small amount water supply means 26 ………………………… Steam diffusion passage 27 ………………………… Exhaust passage 28… …………………… Opening

Claims (3)

[Scope of utility model registration request] 1. A steam generator comprising a water receiving recess having an upward opening narrowed in the upper part of a combustion chamber, and a minute water supply means for supplying a fixed amount of water to the water receiving recess. 2. A steam generator according to claim 1, wherein the steam diffusion passage communicating with the opening of the water receiving recess is formed so as to bypass the exhaust passage from the combustion chamber. 3. A water receiving concave portion having an upward opening narrowed down is provided at the upper part of the combustion chamber, and a minute water supply means for quantitatively supplying a small amount of the water receiving concave portion is connected, and a steam diverging passage leading to the opening of the water receiving concave portion is burned. A steam heating device, which is formed so as to bypass an exhaust passage from a chamber, and the steam diverging passage is opened to a steam heat treatment section which steam-heats an object to be processed by steam.