JPH07120123A - Method and apparatus for manufacturing carbonic acid-containing ice - Google Patents

Abstract

PURPOSE:To manufacture carbonic acid-containing ice having high transparency and excellent hardness by a relatively low-cost facility and low running cost with a simple manufacturing method. CONSTITUTION:Icemaking raw water W in which carbon dioxide gas is dissolved is poured and fully filled in a pressure-resistant icemaking vessel 1 having a vessel body 2 covered with a cover 3, pressurized medium is forcibly supplied into a hollow elastic pressurized bag 8 mounted in the vessel 1 thereby to expand the bag 8, thereby bringing it into contact with a surface of the water W. On the other hand, the water W in the vessel 1 is quickly iced while the carbon dioxide gas is dissolved by cooling means 9 having a brine enclosing unit 10 for externally cooling the vessel 1 and central brine supply unit 15 for similarly cooling from a central side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing ice containing carbonate so as to produce ice in which carbon dioxide gas is enclosed so that a sound that pops when melting is produced, and an apparatus for producing the same.

[0002]

2. Description of the Related Art Various types of ice, such as colored ice, flavored ice, formed into a special shape, etc., in addition to transparent ice, are provided as ice for drinking and drinking. In particular,
Recently, it is interesting to see that ice with high-pressure bubbles inside creates a sound that pops in water when it is used and melted, and ice with carbonic acid has a refreshing flavor. Therefore it is preferred.

However, it is difficult to manufacture such carbonated ice and ice containing high-pressure bubbles due to the unique properties of carbon dioxide gas. Therefore, various manufacturing methods and manufacturing apparatuses have been conventionally proposed in order to overcome it. Has been done.

[0004] For example, as a first method, Japanese Patent Laid-Open No. 62-66075 discloses that air is enclosed in the gaps of fine ice while pressing fine ice prepared as a raw material.
Similarly, 64-63768, and 64-6376.
No. 9 publication is available. As a second method, fine ice prepared as a raw material is pressurized, and compressed air is enclosed in a melting portion in the fine ice gap generated at this pressure.
190366, 63-189756, 63-297977, 64-4
There is one such as the 6551 publication. As a third method, forcibly supplying air bubbles or freezing while generating air bubbles is disclosed in JP-A-63-38873 and 63-29.
There are some such as the 7976 publication. As a fourth method, the clathrate hydrate of carbon dioxide is uniformly dispersed by bringing ice particles or water into contact with carbon dioxide while pressurizing under constant temperature and pressure conditions. There is a publication. As a fifth method, ice-making raw water in which gas is melted in a saturated state is depressurized in a pressure vessel to generate bubbles to freeze the ice-making raw water, and this supply of ice-making raw water and depressurizing operation are repeated. There is one disclosed in Japanese Patent No. 46552. Further, as a sixth method, after ice-making raw water is water-tightly sealed in a pressure-resistant container, dissolved gas is contained and pressurized with a sparingly water-soluble gas-phase pressurizing medium to cause freezing.
There is one disclosed in Japanese Patent No. 372.

[0005]

However, according to the above-mentioned conventional manufacturing method and manufacturing apparatus, it is troublesome to prepare fine ice as a raw material in advance, as in the first and second methods. Moreover, as a result, going through the two-stage icing work process contributes to cost increase. Further, as in the third method, it is necessary to control the supply of air bubbles so that the air bubble supply pipe is pulled out from the frozen portion, which is structurally complicated. In the case of the fourth method, not only the carbon dioxide gas may be released during the production process, but even if ice particles and fine ice can be produced, it is difficult to produce ice blocks, and the production cost is high. It is a waste. Further, as in the fifth method, the supply of ice-making raw water and the repeated depressurization operation require complicated control in the work process. Further, as in the sixth method, the pressurization by forced supply of the slightly water-soluble gas-phase pressurization medium requires a reliable sealing means for preventing leakage of the gas-phase pressurization medium, resulting in a special pressure resistance. You have to prepare a container.

As described above, the conventional manufacturing method and manufacturing apparatus are
Not only is it time-consuming, but the equipment is complicated, the manufacturing cost is high, and it is difficult to provide reliable and inexpensive carbonated ice.

Therefore, the present invention was created in view of the above existing circumstances, and it is possible to produce carbonated ice having high transparency and hardness by a simple production method, and relatively An object of the present invention is to provide a method for producing carbonated ice and an apparatus for producing the same, which can be produced with inexpensive equipment and low running costs.

[0008]

In order to achieve the above-mentioned object, in the method for producing carbonated ice according to the method of the present invention, the ice-making container 1 is filled with water-filled carbon dioxide gas. The raw water W is directly pressurized by the expanding hollow elastic pressure bladder 8 provided in the pressure-resistant ice making container 1, while
The pressure-resistant ice-making container 1 is cooled to freeze the raw ice-making water W.

Further, in the apparatus for producing carbonated ice according to the apparatus of the present invention for carrying out this method, the lid provided on the opening of the container body 2 into which the ice-making raw water W containing carbon dioxide gas is poured. A pressure-resistant ice-making container 1 provided with a body 3 is provided in the pressure-resistant ice-making container 1 so that the pressure-resistant ice-making container 1 expands when supplied with a pressurizing medium and comes into contact with the ice-making raw water W surface poured into the pressure-proof ice-making container 1. And a cooling means 10 comprising a brine covering portion 11 for cooling the pressure-resistant ice making container 1 from the outside, and a central brine supplying portion 15 for cooling the pressure-resistant ice making container 1 from the outside. And

In the container body 2 of the pressure resistant ice making container 1,
The hollow elastic pressurizing bladder 8 may be formed by forming a water injection port 4 for injecting the raw ice-making water W and a drainage port 5 for draining the ice-making raw water W substantially corresponding to the height position of the surface of the raw ice-making water W with which the bottom surface of the hollow elastic pressurizing bladder 8 contacts. it can.

[0011]

In the method for producing carbonated ice and the apparatus for producing the same according to the present invention, when the ice-making raw water W in which carbon dioxide gas is enclosed and dissolved is injected into the pressure-resistant ice-making container 1, the pressure-proof ice-making container 1 is supplied. The hollow elastic pressurizing bladder 8 that has expanded in contact with the ice making raw water W surface injected from the water injection port 4, and pushes out the air existing between the ice making raw water W surface and the hollow elastic pressurizing bladder 8,
The air in the pressure-resistant ice making container 1 is removed through the drainage port 5.

Raw ice making water W filled in the pressure resistant ice making container 1.
The forced supply of the pressurizing medium to the hollow elastic pressurizing bladder 8 in contact with the surface causes the hollow elastic pressurizing bladder 8 to expand, and the ice-making raw water W
Is directly pressurized under a predetermined high pressure.

The brine is supplied by the cooling means 10 from the outer peripheral side of the ice making raw water W in the pressure resistant ice making container 1 by the brine wrapping portion 10 that wraps the outer periphery of the container body 2.
A center brine supply unit 15 arranged substantially in the center of the container body 2 sequentially freezes the ice from the center side. This freezing action is carried out simultaneously from inside and outside of the pressure-resistant ice making container 1 in the pressure-resistant ice making container 1 so that the ice-making process is performed in a short time.

The expansion of the hollow elastic pressurizing bladder 8 itself is arranged by the hollow elastic pressurizing bladder 8 interposed between the raw ice making water W in the pressure-resistant ice making container 1 and the lid 3 for closing the container body 2. By doing so, the gap between the container body 2 and the lid body 3 is sealed, and the inside and outside of the pressure resistant ice making container 1 are shut off.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the following, one embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 shown in the drawings is a pressure resistant ice making container, for example, a container body 2 having an upper opening, and this container body 2
3 for sealing the opening of the container to the container body 2
It consists of and. The pressure-resistant ice-making container 1 is filled with ice-making raw water W that should contain carbon dioxide gas and be frozen, and a water injection port 4 formed near the upper part of the container body 2
The ice-making raw water W is supplied from the above, and overflowed through the drain port 5 which is also formed near the upper portion of the container body 2. These water injection port 4 and drainage port 5 are set at substantially the same height position, and the raw ice-making water W forcibly injected into the container body 2 is a hollow elastic pressurizing bladder 8 to be described later that is temporarily expanded. When the water surface position is set in the container body 2 by the bottom surface, it is assumed that the container body 2 is overflowed from the drainage port 5 with only the raw ice-making water W being filled without generating residual air. Sometimes it is closed by a valve.

Between the lid 3 in the pressure-resistant ice-making container 1 and the raw ice making water W, for example, a supply pipe 6 inserted through the lid 3 supplies a pressure from a pressure pump 7 or the like, and a discharge pipe. Hollow elastic pressurizing bladder 8 expanded by a predetermined pressurizing medium such as compressed air or brine discharged by 9
Are installed, and the expansion direction is directed downward in the container body 2. The bottom surface of the hollow elastic pressure bladder 8 itself upon expansion reaches the critical upper surface of the raw ice making water W in the container body 2, that is, the water injection surface by the water injection port 4. In addition, it also has a sealing function of closing a gap opening surface generated between the peripheral edge of the opening of the container body 2 and the outer peripheral surface of the opening of the lid 3 which is applied to the opening of the container body 2. Has become.

The hollow elastic pressurizing bladder 8 itself is made of chloroprene (C), which has excellent weather resistance and mechanical strength, and is expansive and flexible.
R), nitrile (NBR), silicon (SI), fluorine (FRM), or the like. The expanded outer surface of the hollow elastic pressurizing bladder 8 itself is made of a synthetic rubber such as the container body 2 and the lid 3. While being straddled by the gap, they are pressed against the respective inner side surfaces to close the gap between the two and the two. Further, the hollow elastic pressurizing bladder 8 is provided on the inner surface of the lid body 3 and has a repulsive action generated against the internal pressure of the pressure-resistant ice making container 1 when the lid body 3 is attached and fixed to the container body 2. Together, the pressure-resistant ice-making container 1 has the ability to expand to the outside, and due to this expansion action, it comes into close contact with the inner peripheral surface of the opening of the container body 2 and, at the same time, the container body 2 and the lid body 3 are extended across the gap. Presses tightly against the inner surface. When the hollow elastic pressure sac 8 is contracted,
Its peripheral wall is folded into a bellows shape or is shrunk as it is, giving it a compact shape.

The hollow elastic pressurizing bladder 8 may be pre-expanded so that a predetermined pressure is applied to the inside of the hollow elastic pressurizing bladder 8. It is also possible to supply a pressurizing medium from the outside so that the inner pressure of the hollow elastic pressurizing bladder 8 as well as the inner pressure of 1 can be adjusted and set. Although illustration is omitted, the hollow elastic pressurizing bladder 8 itself is not limited to being mounted on the upper portion of the pressure-resistant ice making container 1, but may be mounted on the bottom of the container body 2 or on the inner surface of the peripheral side wall. The pressure-resistant ice-making container 1 can be provided with a pressure medium supplied.
Any water that directly pressurizes the raw ice-making water W therein may be used.

Thus, the hollow elastic pressure bag 8 shown in the figure
Is a case where it is formed as a substantially disk-shaped flat surface that abuts almost the entire bottom surface of the lid 3 fitted in the high-pressure container body 1. Further, although not shown, the hollow elastic pressurizing bladder 8 itself is substantially donut-shaped in a plane so as to come into close contact with the bottom surface of the lid body 3 mounted and fixed to the opening of the container body 2 and the inner peripheral surface of the container body 2. Or
It may be mounted on the upper surface inside the bottom side wall of the container body 2. Further, the hollow elastic pressurizing bladder 8 is positioned at an abutting boundary surface with the ice-making raw water W, and the hollow elastic pressurizing bladder 8 itself has a rigidity for restricting formation of the entire or a part of the pressurizing surface into a flat surface. A material deformation prevention board (not shown) may be attached.

On the other hand, the pressure-resistant ice-making container 1 itself is provided with a cooling means 10 so that the poured ice-making raw water W can be simultaneously frozen from the outer periphery and the center side thereof.
Is a brine wrapping portion 11 that wraps the outer peripheral portion and the bottom portion of the container body 2, and a central brine supply portion 15 that communicates with the brine wrapping portion 11 from the bottom portion or the lid 3 at approximately the center of the container body 2. And consists of.

In order to cool the inside of the pressure-resistant ice-making container 1, the brine wrapping portion 11 is partitioned and formed on the outer periphery of the container main body 2 so that the outer periphery of the container main body 2 is covered with brine, and cooling is performed as shown in FIG. A supply port 12 for supplying a predetermined brine formed by the unit 20 and a discharge port 13 for circulating the brine to the cooling unit 20 are formed.

Further, the central brine supply unit 15 is formed substantially in the center of the container main body 2 so as to communicate with the brine covering unit 11 from the bottom of the container body 2 or the lid 3. After a part of the brine supplied from the cooling unit 20 into the brine wrapping portion 11 enters to cool the pressure resistant ice making container 1 from the center side of the container body 2, the outlet 13 of the brine wrapping portion 11 is discharged. It constitutes a brine passage discharged to the side.

That is, the central brine supply unit 15 itself is a brine passage formed by branching from the brine covering unit 11, and, for example, as shown in the drawing, the brine covering unit extends from the bottom of the container body 2 to the brine covering unit. An external pipe 1 formed into a standing shape in the container body 2 by communicating with 11, and closing the top part.
6 and an inner pipe 17 which has an opening near the top of the outer pipe 16 and which communicates with the bottom of the container body 2 and the brine covering portion 11 to communicate with the discharge port 13 side. It is arranged in the. These inner and outer double outer pipes 16,
In the central brine supply section 15 consisting of the inner pipe 17,
From the inside of the brine envelope 11 outside the container body 2 to the outer pipe 16
After the brine is introduced into the center of the container body 2 by means of the internal pipe 17, the brine is discharged to the discharge port 13 side.

The cooling unit 20 is of a two-stage compression refrigeration cycle, and as shown in FIG.
1, a dehydration brine tank 22, a shell tube type brine cooler 23, etc., and a refrigerator 24, an oil separator 25, a condenser 26, an intercooler 2
The refrigerating equipment is composed of 7 or the like, and the cooled brine is supplied to the brine covering portion 11 and the central brine supply portion 15, respectively, to cool the inside of the pressure-resistant ice making container 1.

Next, the method of the present invention carried out by using the apparatus of the present invention will be described. Raw water prepared by mixing an appropriate syrup, coloring agent, etc. so that the taste can be increased if necessary is a cold water machine, When cooling in advance with a carbo cooler or the like, the raw water for ice making W is prepared by encapsulating and dissolving carbon dioxide under predetermined pressurization conditions. Then, after the raw ice water W is poured into the container body 2 to be sufficiently filled, the lid body 3 is capped on the container body 2, and the hollow elastic pressurizing bladder 8 is supplied with the pressure pump through the supply pipe 6. While supplying the predetermined pressurizing medium from 7 etc. to temporarily inflate the hollow elastic pressurizing bladder 8, the raw ice making water W is poured from the pouring port 4 so as to overflow from the drain port 5 and the inside of the pressure resistant ice making container 1 It is filled with raw ice-making water W without leaving air. Then, compressed air or the like is forcedly fed into the hollow elastic pressurizing bladder 8 to expand the hollow elastic pressurizing bladder 8, and brine is supplied into the brine covering portion 11 and the central brine supply portion 15 to cool the entire pressure-resistant ice-making container 1. By that, raw ice water W
To freeze. Also, due to this freezing action, a solid hydrate (CO ₂ .8H ₂ O) is deposited.

After freezing, the internal pressure of the hollow elastic pressurizing bladder 8 is discharged by the discharge pipe 9, and compressed air at about 30 ° C. is sent into the hollow elastic pressurizing bladder 8 and is also discharged, whereby the hollow elastic pressurizing bladder 8 is pressed. The freezing portion adhered by the freezing action is melted between the contact surfaces of the bladder 8 and the raw ice-making water W, and then the lid 3
Remove. Simultaneously, the switching valve feeds the brine whose temperature is controlled at around 0 to 5 ° C. from the dehydration brine tank 22 to the brine wrapping portion 11 to melt the icing portion between the contact between the container body 2 and the frosting side surface. , Make it easy to remove the frozen product. Next, the lid 3 is opened and the frozen product in the container body 2 is taken out.

The pressurization of the raw ice-making water W by the hollow elastic pressurizing bladder 8 at this time is performed by the pressure resistance of the pressure resistant ice making container 1, the use of a liquid such as oil as a pressurizing medium, the material of the hollow elastic pressurizing bladder 8, Depending on the proper selection of the thickness of the formed film, about 10,0
It can be up to about 100 atm. However, in this case,
In order to prevent the pressure-resistant ice-making container 1 itself from being damaged, the pressurizing medium must be strictly discharged from the hollow elastic pressurizing bladder 8 according to the expansion rate of the ice.

It should be noted, in the production of carbonated ice with normal coloration taste, the pressurized medium is produced preferably in 50 Kg / cm ² or less by a gas pressure, a sufficient performance even at about 15 Kg / cm ² It is possible to produce ice with carbonic acid.

Further, as the ice-making raw water W, an aqueous cola solution, that is, one containing a caramel dye aspartame / L-phenylalanine compound, an acidulant, a fragrance, a preservative (Na benzoate) and the like is poured into the pressure-resistant ice-making container 1 to be hollow. The internal pressure of the elastic pressurizing bladder 8 is set to 20 kg / cm ² (compressed air),
When frozen in brine at 20 ° C for 6 hours, 170
It was possible to obtain an ice mass of Kg. The resulting ice block is
It was a carbonated ice cream with a coloring taste in which the components were uniformly dispersed.

[0030]

The present invention is configured as described above,
Therefore, carbonated ice having high transparency and excellent hardness can be manufactured by a simple manufacturing method by pressurizing the raw ice-making water W poured into the pressure-resistant ice-making container 1 through the hollow elastic pressurizing bladder 8, and The gas solubility can be set arbitrarily, and the manufacturing can be performed with relatively inexpensive equipment and low running cost.

Further, since the pressure-proof ice making container 1 is provided with the hollow elastic pressurizing bladder 8 which is expanded by the supply of the pressurizing medium, the ice-making raw water W in which carbon dioxide gas is dissolved is dissolved in the pressure-proof ice making container. When injecting and supplying into the inside 1, the expanded hollow elastic pressure bladder 8 contacts the ice making raw water W surface injected from the water inlet 4, and exists between the ice making raw water W surface and the hollow elastic pressure bladder 8. The air can be pushed out, and by removing the air in the pressure-resistant ice-making container 1 through the drainage port 5, the hollow elastic pressure bladder 8 can directly pressurize the raw ice-making water W. Moreover, the water injection port 4
If the pressure-resistant ice-making container 1 is sufficiently filled with water after the ice-making source water W has passed through, the ice-making source water W will overflow through the drainage port 5, so that it is easy to prevent residual air in the pressure-resistant ice-making container 1. Can be confirmed.

By forcibly supplying the pressurizing medium into the hollow elastic pressurizing bag 8, the hollow elastic pressurizing bag 8 in contact with the ice making raw water W surface is expanded, whereby the pressure-resistant ice making container 1 is filled. It is possible to directly pressurize the formed ice-making raw water W under a predetermined high pressure, and it is possible to obtain an ice block containing carbonic acid by the entire frozen ice-making raw water W.

Not only that, the hollow elastic pressure bladder 8 is
Since the ice-making raw water W in the container body 2 and the lid 3 that closes the container body 2 are interposed, the hollow elastic pressurizing bladder 8 is provided.
The expansion of itself exerts a sealing function of sealing the gap between the container body 2 and the lid body 3, shuts off the inside and outside of the pressure resistant ice making container 1, and can simplify the entire configuration. Further, the expansion of the hollow elastic pressurizing bladder 8 does not form unevenness on the pressurizing surface and flattens the contact surface with the raw ice-making water W, so that the pressurizing operation of the raw ice-making water W on the surface to be pressurized is made uniform. Moreover, when the raw ice-making water W expands at the time of freezing, it exerts a buffering effect and prevents the pressure-resistant ice-making container 1 itself from being destroyed.

Not only that, by gradually injecting liquefied carbon dioxide gas into the ice-making raw water W in a sealed state and controlling the temperature and pressure of the ice-making raw water W, it is possible to freeze the ice-making raw water W in a supersaturated state. Allows storage of carbon dioxide in ice. That is, since such ice contains a large amount of carbon dioxide gas, it can be stored at atmospheric pressure only by controlling the temperature.

The cooling means 10 having an inner / outer double structure consisting of the brine wrapping portion 11 and the central brine supply portion 15 makes the heat exchange between the inside and outside of the pressure resistant ice making container 1 efficient and enables a rapid cooling operation in a short time. Therefore, in combination with the direct pressurization by the hollow elastic pressurizing bladder 8, it is possible to form a transparent ice having a high carbon dioxide content and having a high hardness and containing carbonate.

The carbonated ice obtained according to the present invention can be used as food or can be used as, for example, a chilled product during transportation of food, and particularly when used for transportation of high-grade fresh fish, it occurs during melting. Carbon dioxide makes the ambient condition inactive to putrefaction and can help prevent its oxidation and putrefaction.

[Brief description of drawings]

FIG. 1 is a side sectional view of a pressure-resistant ice making container according to an embodiment of the device of the present invention.

FIG. 2 is a schematic diagram of a cooling system diagram of the same.

[Explanation of symbols]

W Ice making raw water 1 Pressure resistant ice making container 2 Container body 3 Lid 4 Water injection port 5 Drainage port 6 Supply pipe 7 Pressurizing pump 8 Hollow elastic pressurizing bag 9 Discharge pipe 10 Cooling means 11 Brine wrapping part 12 Supply port 13 Discharge port 15 Central brine supply unit 16 External pipe 17 Internal pipe 20 Cooling unit 21 Low temperature brine tank 22 Dewatering brine tank 23 Brine cooler 24 Refrigerator 25 Oil separator 26 Condenser 27 Intercooler

Claims (3)

[Claims] 1. An ice-making raw water in which carbon dioxide gas filled with water is dissolved in a pressure-resistant ice-making container is directly pressurized by an expanding hollow elastic pressure sac provided in the pressure-proof ice-making container, while the pressure-proof ice-making container is A method for producing carbonated ice, which comprises cooling and freezing ice-making raw water. 2. A pressure-resistant ice-making container having a lid body provided at an opening of a container body into which ice-making raw water containing carbon dioxide gas is poured, and a pressure-resistant medium which is expanded to expand the pressure-resistant ice-making container. The hollow elastic pressurizing bladder installed inside the pressure-resistant ice making container so as to come into contact with the surface of the ice making raw water that has been poured into An apparatus for producing carbonated ice, comprising: a cooling unit including a central brine supply unit. 3. A container body of a pressure-resistant ice-making container has a water injection port for injecting ice-making raw water and a drainage port for draining the ice-making raw water substantially corresponding to the height position of the ice-making raw water surface where the expanding hollow elastic pressurizing bladder bottom surface contacts. The device for producing carbonated ice according to claim 2, wherein the openings are formed.