JP2003262441A - Ice machine and ice making method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ice machine and an ice making method that can produce ice containing useful gas at high concentration while improving ice making efficiency by easily removing ice from an ice making space forming body. <P>SOLUTION: Ice is produced in the ice making space forming body of bottomed cylinder shape extended in a vertical direction, by injecting water in the ice making space forming body and cooling the ice making space forming body. An ice discharge port for discharging the produced ice is provided at the upper part of the ice making space forming body, and a water injection port is provided near the bottom part of the ice making space forming body. Water is pressed in from the water injection port to push up the produced ice and to discharge the ice from the ice discharge port. The ice making space forming body is gradually enlarged upward. In discharging the ice from the ice discharge port, the ice is discharged with the lower end part remaining in the ice making space forming body, and the remaining ice is made a lid for blocking the ice making space forming body. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making machine and an ice making method.

[0002]

2. Description of the Related Art Conventionally, in the case of producing ice, a container of water having a predetermined shape is placed in a refrigerating device for a predetermined time to solidify the water, or a cooling liquid is used. By spraying water on the surface of the cooled cooling body, the water adhering to the surface of the cooling body is frozen to manufacture the same.

[0003]

However, these ice making devices and ice making methods have the following drawbacks.

That is, in the conventional ice making apparatus and ice making method, in order to detach the ice from the container or the cooling body after the ice making,
There is a problem in that it is necessary to once melt the ice in the portion in contact with the container or the cooling body by heating the container or the cooling body a little, and thus the deicing work is very complicated.

Further, there is a problem that impurities are easily mixed in ice making. In particular, when it is used to freeze fish in a fish market or fishing boat as one of the usage forms of the produced ice, impurities melted from the ice may adhere to the fish. However, there was a problem that maintenance costs would rise.

[0006]

In order to solve the above-mentioned problems, in the ice making machine of the present invention, water is injected into the bottomed cylindrical ice making space forming body to form the ice making space. An ice-making machine that produces ice inside an ice-making space forming body by cooling the body, and an ice outlet for discharging the generated ice is provided at the top of the ice-making space forming body, and near the bottom of the ice-making space forming body. Is equipped with a water injection port, and is configured to push up the ice produced by pressurizing water from the water injection port and discharge the ice from the ice discharge port.

Further, it is also characterized by the following points. That is, (1) The ice-making space forming body is gradually expanded upward. (2) When discharging the ice from the ice discharge port, the lower end of the ice is left in the ice making space forming body and discharged, and the remaining ice is used as an ice making space forming body closing lid. (3) A useful gas is dissolved in the water injected into the ice-making space forming body. (4) The useful gas is ozone.

Further, in the ice making method of the present invention, water is injected into the bottomed cylindrical ice making space forming body which is extended vertically.
A method for producing ice in the ice making space forming body by cooling the ice making space forming body, wherein an ice outlet for discharging the generated ice is provided at the top of the ice making space forming body, and It was decided to install a water injection port near the bottom and push up the ice generated by pressurizing water from the water injection port to discharge the ice from the ice discharge port.

Further, it is also characterized by the following points. That is, (1) The ice making space forming body is gradually expanded upward. (2) When discharging the ice from the ice discharge port, the lower end of the ice is left in the ice making space forming body and discharged, and the remaining ice is used as an ice making space forming body closing lid. (3) A useful gas is dissolved in the water injected into the ice-making space forming body. (4) The useful gas is ozone.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION According to the ice making machine and the ice making method of the present invention, a bottomed cylindrical container is formed by vertically extending an ice making space forming body for storing water to produce ice, In addition to providing an ice discharge port for discharging the generated ice, a water injection port is provided near the bottom of the ice making space forming body to generate ice in the ice making space forming body by cooling the ice making space forming body. The ice generated by pushing in water is pushed up and the ice is discharged from the ice discharge port.

That is, since the ice is deiced by the pressure of the water press-fitted from the water inlet, the heat treatment for heating the ice-making space forming body for deicing can be unnecessary. Therefore, it is possible to eliminate the need for a heating device for heat treatment, and to make the ice maker compact.
It is possible to save energy by eliminating the energy required for heating.

In particular, when the ice making space forming body is de-iced by heat treatment, the ice making space forming body cooled for ice making is once heated to remove the ice, and then the ice making space forming body is cooled again. The time required to generate ice once is longer by the time required for heating the ice-making space forming body and re-cooling after heating. However, since the heat treatment is not required, de-icing is performed while the ice-making space forming body is being cooled. Since ice making can be restarted, the time required for ice making can be shortened. Moreover, ice can be produced almost continuously.

Further, when the ice making space forming body is provided with a taper so as to gradually expand upward, the ice making space forming body tends to move upward along the taper along with the volume expansion when the water is solidified. Since the action can be caused, it is possible to make it easier to deice the ice from the ice making space forming body by pressurizing the water from the water injection port. Also,
It is also possible to prevent the ice-making space forming body from being damaged due to volume expansion when water solidifies.

When the ice is discharged from the ice discharge port, all the ice may be discharged from the ice making space forming body by the water press-fitted from the water injection port, but the lower end of the generated ice is inserted into the ice making space forming body. The ice discharge port of the ice making space forming body may be closed by leaving the ice making space as it is. That is, a part of the ice is used as an ice making space forming body closing lid that closes the ice discharge port of the ice making space forming body.

When the ice discharge opening of the ice making space forming body is closed by the ice making space forming body closing cover, it is possible to prevent impurities from entering the ice making space forming body through the ice making space forming body, and to prevent the impurities from falling below the ice. Since it is possible to prevent impurities from being mixed into the injected water, it is possible to generate clean ice.

Further, when a useful gas is dissolved in the water to be injected into the ice making space forming body, the use of the ice making space forming body closing lid prevents the useful gas dissolved in the ice making from being deposited in the air. It can be suppressed, and ice containing a high concentration of useful gas can be generated.

In particular, during ice making, ice is first generated on the surface of the side wall of the ice making space forming body, and thereafter grows inward of the ice making space forming body, and further, volume expansion accompanying solidification occurs, so that ice is formed. Along with the growth, a pressure increase can be generated in the water in the ice making space forming body.

By increasing the pressure of water, it is possible to suppress the precipitation of useful gas dissolved in water according to Henry's law, and it is possible to make ice without causing the density variation of useful gas in ice. .

Particularly, when ozone is used as the useful gas,
It is possible to generate ice containing ozone substantially uniformly, and it is possible to generate ice that releases ozone at a substantially constant rate as the ice melts.

Since ozone has a strong oxidizing power, it has a sterilizing / disinfecting / deodorizing effect, and has the property of decomposing with time and becoming harmless, so that it can be used for preservation of fresh foods and purification of water. By producing ice containing such ozone, it is possible to provide ice that can maintain the freshness of the fish better and can suppress the growth of bacteria and miscellaneous bacteria, for example, in the fish market.

Further, although ozone is usually decomposed into oxygen and difficult to store, ozone can be stored and transported by freezing high-concentration ozone water and generating ozone ice in which ozone is contained in ice. It can be possible and can promote the spread of ozone utilization technology.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIG. 1 is a schematic view of an ice making machine A according to the first embodiment. The ice maker A includes an ice making section 2 including an ice making space forming body 1 that solidifies water to produce ice, a water supply section 4 connected to the ice making section 2 via a water supply pipe 3, and an ice making section 2
And a cooling liquid supply unit 5 connected via a cooling liquid reciprocating pipe,
It is configured by a control unit (not shown).

The ice making section 2 is a bottomed cylindrical ice making space forming body 1 capable of storing water, and a cooling liquid storage tank 7 provided in contact with a side wall 6 of the ice making space forming body 1. The side wall 6 is cooled by the cooling liquid C stored in the cooling liquid storage tank 7, and the water injected into the ice making space forming body 1 is cooled and solidified.

In the present embodiment, the ice making space forming body 1 has a bottomed cylindrical shape by a side wall 6 having a substantially cylindrical shape and a bottom wall 8 attached to the lower end of the side wall 6. The side wall 6 is not limited to the substantially cylindrical shape, but may be a substantially rectangular tube shape.

Further, the ice-making space forming body 1 is provided with a taper on the side wall 6 so as to widen upward. Since the ice making space forming body 1 is expanded toward the side, it is possible to cause the generated ice to move upward along the side wall 6 with the volume expansion when the water is solidified. Therefore, the ice can be easily removed from the ice-making space forming body 1. Moreover, this can prevent the ice-making space forming body 1 from being damaged.

Further, in order to make it easier to remove ice from the ice making space forming body 1, a water repellent coating such as a polytetrafluoroethylene coating is provided on the contact surface of the side wall 6 with the ice. Good. In this embodiment, the ice making space forming body 1 is made of stainless steel in consideration of heat transfer performance, but may be made of polytetrafluoroethylene in consideration of ice removing performance.

The upper portion of the ice-making space forming body 1 having a cylindrical shape with a bottom has an opening, and the opening portion is used as an ice discharge port 9. As will be described later, the ice produced in the ice-making space forming body 1 is ice-discharge port. It is configured to be discharged from 9.

Further, a water injection port 10 is provided on the bottom wall 8 of the ice making space forming body 1, and water is injected into the ice making space forming body 1 by connecting one end of the water supply pipe 3 to the water injection port 10. It is configured accordingly. The water inlet 10 is not limited to being provided in the bottom wall 8, but may be provided in the lower end portion of the side wall 6 and may be provided in the vicinity of the bottom of the ice making space forming body 1.

A first sensor 11 is attached to an upper end portion of the side wall 6 of the ice making space forming body 1, and a second sensor 12 is placed at a position lowered from the first sensor 11 by a predetermined dimension. I am attached. The first sensor 11 and the second sensor 12 are electrically connected to the control unit, and are configured to detect the water surface when water is injected into the ice making space forming body 1, as described later.

The cooling liquid storage tank 7 includes a cooling liquid storage tank bottom wall 13 in which a bottom wall 8 is extended outward and an outer wall standing upright along the outer edge of the cooling liquid storage tank bottom wall 13. 14 and a cooling liquid storage tank ceiling wall 16 that forms a closed cooling liquid storage space 15 by being installed between the upper end of the outer wall 14 and the upper end of the side wall 6.

Then, the side wall 6 of the ice-making space forming body 1 is cooled by filling the cooling liquid storage tank 7 with the cooling liquid C.

In this embodiment, the side wall 6 is covered with the cooling liquid C.
However, other side cooling means may be used to cool the side wall 6. Further, in this embodiment, only the side wall 6 is cooled, but
The bottom wall 8 may also be configured to be cooled.

In this embodiment, the cooling liquid feeding section 5 is a known refrigerator 17 capable of feeding the cooling liquid C cooled to a predetermined temperature.
The refrigerator 17 and the cooling liquid storage tank 7 are connected to each other by the cooling liquid reciprocating pipe 18a and the cooling liquid return pipe 18b to circulate the cooling liquid C. There is.

By connecting one end of the cooling liquid outward pipe 18a to the bottom wall 13 of the cooling liquid storage tank and connecting one end of the cooling liquid return pipe 18b to the upper end portion of the outer wall 14, the temperature is increased and the cooling capacity is increased. The lowered cooling liquid C is efficiently fed to the cooling liquid return pipe 18b and returned to the refrigerator 17.

The water supply unit 4 is composed of a water storage tank 19 which stores water to be supplied to the ice making space forming body 1. The water supplying tank 4 has a water supply pipe 3 having one end connected to the ice making space forming body 1. The other end of is connected. Further, the water storage tank 19 is provided with a water level sensor (not shown), and is configured to appropriately replenish water when the amount of water in the water storage tank 19 decreases.

Further, in this embodiment, the water stored in the water storage tank 19 is ozone water W. The ozone water W is water in which gaseous ozone is dissolved in water to increase the ozone concentration in water, and water having a higher ozone dissolved concentration than normal water is referred to as ozone water W. Further, the ice produced by solidifying the ozone water W is referred to as ozone ice K (see FIGS. 2 to 4).

The water supply unit 4 may be provided not only with the water storage tank 19 but also with an ozone water generator, so that ozone water W in which ozone is dissolved at a high concentration can be supplied.
It may be configured appropriately.

A pressurizing pump 20 is provided in the middle of the water supply pipe 3, and the ozone water W in the water storage tank 19 is sent under pressure to the ice making space forming body 1 by the pressurizing pump 20. The pressurizing pump 20 is electrically connected to the control unit and is operated under the control of the control unit.

Further, the ice making space forming body 1 and the pressurizing pump 20.
A water pressure sensor 21 for detecting the water pressure in the water supply pipe 3 is provided in the water supply pipe 3 between and. The water pressure sensor 21 is
It is electrically connected to the control unit, and as will be described later, the ozone ice K in the ice-making space forming body 1 is determined from the output value of the water pressure sensor 21.
Is being determined.

In the following, the production process for producing ozone ice K from ozone water W in which ozone is dissolved will be described. However, the gas dissolved in water is not limited to ozone, and it is not limited to ozone or nitrogen. It may be water in which gas is dissolved. In addition, even simple water can be used to make ice.

First, the control section operates the pressurizing pump 20 to pressure feed the ozone water W in the water storage tank 19 to the ice making space forming body 1.

When the water surface of the ozone water W reaches the first sensor 11 as shown in FIG. 1 along with the injection of the ozone water W into the ice-making space forming body 1, the first sensor 11 outputs a detection signal to the controller. To the pressurizing pump 20.
Stop the operation of.

After stopping the pressurizing pump 20, ozone ice K starts to be generated from the surface of the side wall 6 cooled by the cooling liquid C, and after a predetermined time, the ozone water W in the ice making space forming body 1 is formed.
Becomes ozone ice K as shown in FIG.

At this time, since the ice discharge port 9 is not closed, a part of ozone from the ozone water W is deposited in the air, and the ozone concentration in the ozone water W decreases. Also, ozone water W
When it becomes ozone ice K, volume expansion occurs, so that the ozone ice K solidifies while moving upward in the ice making space forming body 1. Ozone ice K protruding upward from the ice outlet 9 in FIG.
Is an increasing volume due to volume expansion of the ozone water W.

Further, the pressure of the ozone water W in the water supply pipe 3 between the ice making space forming body 1 and the pressurizing pump 20 rises as the volume of the ozone water W becomes the ozone ice K. This increase in pressure is detected by the water pressure sensor 21, and when the predetermined pressure value is reached, the control unit determines that the ice making is completed and operates the pressurizing pump 20 to apply the ozone water W to the ice making space forming body 1. Press fit.

As the ozone water W is pressed into the ice making space forming body 1, as shown in FIG. 3, the ozone ice K in the ice making space forming body 1 is pushed upward and discharged from the ice discharge port 9. .

At this time, the ozone ice K in the ice-making space forming body 1 is expanded so that the ice-making space forming body 1 is directed upward, so that the ozone ice K moves upward due to the volume expansion caused by solidification. By pressing the ozone water W into the ozone water K and pressing the ozone ice K upward, the ozone ice K can be easily deiced and discharged from the ice-making space forming body 1.

While being discharged, the ozone ice K is cooled by the side wall 6 to become a columnar body having a sectional shape substantially the same as the opening shape of the ice discharge port 9. However, the ozone ice K has a low ozone concentration because ozone is precipitated during solidification as described above.

As shown in FIG. 3, when the water surface of the ozone water W injected into the ice making space forming body 1 reaches the second sensor 12 when the ozone water W is pressed into the ice making space forming body 1.
The second sensor 12 transmits a detection signal to the control unit, and the control unit receiving the detection signal stops the operation of the pressurizing pump 20.

As described above, since the second sensor 12 is arranged at a position lower than the first sensor 11 by a predetermined dimension, the lower end of the ozone ice K is left in the ice making space forming body 1. The remaining portion is used as the ice-making space forming body closing lid 23.

The ozone ice K in the portion protruding upward from the ice making space forming body 1 is removed by crushing it with the centrifugal hammer 22 shown in FIG. 1 or cutting it with an appropriate cutting device, and removing the ozone ice K. Is carried to the next step using an appropriate carrying device.

By stopping the operation of the pressurizing pump 20, the solidification of the ozone water W injected below the lid 23 for closing the ice-making space forming body is started, and new ozone ice K can be generated.

At this time, when new ozone ice K is generated, as shown in FIG. 4, the ice discharge port 9 is closed by the ice making space forming body closing lid 23, so that the ozone water W
Therefore, it is possible to prevent ozone from precipitating in the air, and it is possible to generate ozone ice K containing ozone at a high concentration.

Further, at the time of ice making, as shown in FIG. 4, ozone ice K is generated from the surface of the side wall 6 of the ice making space forming body 1, and thereafter, the ozone ice K is directed inward of the ice making space forming body.
And the volume of the ozone water W is expanded by solidification of the ozone water W, so that the ozone water W in the ice-making space forming body 1 is increased in pressure with the growth of the ozone ice K.

By increasing the pressure of the ozone water W, it is possible to suppress the precipitation of ozone dissolved in the ozone water W according to Henry's law, and to make the ice ice K without causing the ozone density variation. can do.

In addition, by separately operating the pressurizing pump 20,
The ozone water W in the ice-making space forming body 1 may be configured to be further pressurized.

When the pressure of the ozone water W in the water supply pipe 3 between the ice making space forming body 1 and the pressurizing pump 20 reaches a predetermined pressure value, the control unit judges that the ice making is completed as described above. 3, the pressurizing pump 20 is operated to press the ozone water into the ice making space forming body 1, and as shown in FIG. 3, the ozone ice K in the ice making space forming body 1 is discharged and the ice making space forming body 1 is discharged. The ozone water W is injected into the chamber.

By repeating this, ozone ice K can be manufactured almost continuously. In particular, as described above, the ozone concentration generated in the first ozone K is low, but in the ozone ice K generated in the second time or later, ozone is not released from the ozone water W into the air during ice making. Since it can be prevented, ozone can be contained at a high concentration.

The ice making space forming body 1 of the ice making machine A described above is
Although only one ice making space forming body 1 is provided in one ice making part 2, a plurality of ice making space forming bodies 1 may be provided in the ice making part 2 as shown in FIG. Particularly, when the hole diameter of the ice making space forming body 1 is reduced by providing a plurality of ice making space forming bodies 1, the cooling efficiency by the side wall 6 can be increased, and the ozone water W injected into the ice making space forming body 1 can be shortened. Since ozone ice K can be obtained in time, correct and continuous ice making can be performed.

Further, the ice making space forming body 1 may be provided not only by extending vertically but by extending diagonally upward as shown in FIG. By extending the ice-making space forming body 1 obliquely upward, when the ozone ice K is pushed out along with the press-fitting of the ozone water W from the water injection port, the ozone ice K can be pushed obliquely upward and can be pushed out. Further, the crushing work or cutting work of the ozone ice K can be easily performed.

[Second Embodiment] FIG. 7 is a schematic view of an ice making machine B according to a second embodiment. The ice making machine B of the present embodiment is different from the ice making machine A of the first embodiment only in the configuration of the ice making section 2 '.
Since the other points are the same as those in the first embodiment, the same reference numerals are used for the same components and the description thereof will be omitted.

The ice making machine B of this embodiment is also connected to the ice making section 2'having the ice making space forming body 1'which solidifies water to produce ice, and the ice making section 2'and the water supply pipe 3. The water supply unit 4 and the cooling liquid supply unit 5 which is connected to the ice making unit 2'through a cooling liquid reciprocating pipe.
And a control unit (not shown).

The ice making section 2 ', which is different from the ice making machine A of the first embodiment, will be described in detail below.

The ice making part 2'of this embodiment is also brought into contact with the ice making space forming body 1'having a bottomed cylindrical shape so as to be able to store water and the side wall 6'of the ice making space forming body 1 '. And the cooling liquid storage tank 7'provided and provided in the cooling liquid storage tank 7 '.
The side wall 6'is cooled by the so that the water injected into the ice making space forming body 1'is cooled and solidified.

The difference from the ice making machine A of the first embodiment is that the arrangement positions of the ice making space forming body 1'and the cooling liquid storage tank 7'are reversed.

That is, in the ice making space forming body 1 ′ of this embodiment, the outer surface wall 24 having a substantially cylindrical shape, the substantially cylindrical side wall 6 ′ provided inside the outer surface wall 24, and the outer surface wall 24 are provided. Side wall 6 '
With a substantially arc-shaped bottom wall 8'installed at the lower end of
It has a bottomed cylindrical shape with a cavity provided in the substantially central portion. A cooling liquid storage tank 7'is provided in the hollow portion to cool the side wall 6'to make ice. Therefore, the generated ice has a substantially cylindrical shape. The shapes of the outer side wall 24 and the side wall 6 ′ are not limited to the cylindrical shape, but may be an appropriate substantially rectangular tube shape.

Also in this embodiment, the ice making space forming body 1 '
Has a side wall 6'tapered so as to be expanded upward.

The upper portion of the bottomed cylindrical ice making space forming body 1'has an opening, and the opening portion serves as an ice discharge port 9 '.
Therefore, in the ice making machine B of the present embodiment, it is possible to generate substantially cylindrical ice having a hollow portion, and the ice crushing work after discharging from the ice making space forming body 1 ′ can be easily performed. it can.

In particular, by reducing the distance between the outer side wall 24 and the side wall 6'to produce thin ice, the cooling effect of the side wall 6'can be enhanced and the ice making efficiency can be improved. .

Further, the bottom wall 8'of the ice-making space forming body 1'is provided with a water injection port 10, and one end of the water supply pipe 3 is connected to the water injection port 10 to supply water to the ice-making space forming body 1 '. Is configured to inject. The water injection port 10 is not limited to being provided in the bottom wall 8 ′, but may be provided in the lower end portion of the outer side wall 24, and may be provided in the vicinity of the bottom portion of the ice making space forming body 1 ′.

The outer surface wall 24 has a first sensor 11 at the upper end.
Further, the second sensor 12 is attached at a position lowered from the first sensor 11 by a predetermined dimension.

The cooling liquid storage tank 7'includes a side wall 6'and a side wall 6 '.
Coolant reservoir bottom wall 13 'and side wall 6'attached to the lower end of
And a cooling liquid storage tank ceiling wall 16 'attached to the upper end of the. Then, one end of the cooling liquid outgoing pipe 18a connected to the refrigerator 17 of the cooling liquid supply unit 5 is attached to the cooling liquid storage tank bottom wall 13 '.
By connecting to the cooling liquid storage tank 7 ', the cooling liquid C cooled to a predetermined temperature is fed, and the cooling liquid return path penetrating from the cooling liquid storage tank bottom wall 13' into the cooling liquid storage tank 7 '. The cooling liquid C in the cooling liquid storage tank 7 ′ is supplied to the refrigerator 1 through the pipe 18b.
It is returned to 7 and configured to circulate the cooling liquid C. In particular, the tip of the cooling liquid return pipe 18b that has penetrated into the cooling liquid storage tank 7'is located as close to the cooling liquid storage tank ceiling wall 16 'as possible, so that the cooling liquid C becomes hot and the cooling capacity is lowered. Are efficiently collected.

As described above, the cooling liquid storage tank 7'is surrounded by the ice-making space forming body 1 ', so that the cooling effect of the cooling liquid C in the cooling liquid storage tank 7'can be improved. It can be used to the maximum in the body 1 ', and the ice making efficiency can be improved.

Ice-making unit equipped with the above-mentioned ice-making space forming body 1 ′
The ice making process in 2'is the same as the ice making process of the ice making machine A of the first embodiment except that the shape of the ozone ice K to be generated is different, and therefore the description of the ice making process in the ice making machine B is omitted.

[0076]

According to the first aspect of the present invention, an ice discharge port for discharging generated ice is provided in the upper portion of the ice making space forming body, and a water injection port is provided in the vicinity of the bottom portion of the ice making space forming body. By pushing up the ice generated by press-fitting water from the water inlet, and discharging the ice from the ice outlet,
When the ice is removed from the ice making space forming body, it is not necessary to heat the ice making space forming body and a heating device can be eliminated, so that the ice making machine can be made compact.

Furthermore, after ice-making, water is pressure-injected from the water inlet to remove ice, and the water used for the ice-release is continuously produced as it is, so that ice-removal and water injection can be performed in one step. Therefore, the time required for one ice making can be shortened, and the ice making efficiency can be improved.

According to the second aspect of the present invention, since the ice making space forming body is gradually expanded upward, the ice making space forming body is formed on the ice making ice due to the volume expansion accompanying the solidification of water. Since the action of moving upward along the side wall of the ice can be generated, it is possible to easily remove the ice from the ice making space forming body. Further, it is possible to prevent the ice making space forming body from being damaged due to the volume expansion accompanying the solidification of water.

According to the third aspect of the present invention, when the ice is discharged from the ice discharge port, the lower end of the ice is left in the ice making space forming body and discharged, and the remaining ice is discharged. By using the closing lid, it is possible to prevent impurities such as dust and various bacteria from entering the ice making space forming body from the ice discharge port at the top of the ice making space forming body during ice making by the ice making space forming body closing lid. It is possible to produce clean ice without contamination.

According to the fourth aspect of the invention, the useful gas is dissolved in the water to be injected into the ice making space forming body, so that the ice containing the useful gas can be produced.
In particular, by blocking the ice discharge port at the top of the ice making space forming body with the ice making space forming body closing lid to make ice, it is possible to prevent the useful gas dissolved in water during ice making from depositing in the air. It can be prevented by a closing lid, and ice containing a high concentration of useful gas can be produced.

Furthermore, during ice making, a pressure increase can be caused in the water in the ice making space forming body with the growth of ice, so that the precipitation of useful gas can be suppressed according to Henry's law, and dissolved. It is possible to generate ice without variations in the density of the useful gas.

According to the fifth aspect of the present invention, by using ozone as the useful gas, it is possible to easily generate and provide ice containing ozone at a high concentration, and to sterilize / disinfect.
A new usage of ozone having a deodorizing effect can be enabled. Further, it is possible to provide a low-cost storage method of ozone that is easily decomposed.

According to the sixth aspect of the present invention, an ice outlet for discharging generated ice is provided on the upper portion of the ice making space forming body, and a water injection port is provided near the bottom of the ice making space forming body. By pushing up the ice generated by pressing in water from the water outlet and discharging the ice from the ice outlet,
Similar to the invention described in claim 1, after ice making, water is press-injected from the water injection port to de-ice, and then the water used for de-ice is continuously made as it is, thereby performing de-ice and water injection in one step. Since the above can be performed, the time required for one ice making can be shortened and the ice making efficiency can be improved.

According to the seventh aspect of the invention, the ice making space forming body is gradually expanded upward so that the volume expansion is accompanied by the solidification of water as in the second aspect of the invention. As a result, it is possible to cause the ice-making ice to move upward along the side wall of the ice-making space forming body, so that the ice can be easily removed from the ice-making space forming body. Therefore, deicing from the ice making space forming body can be performed in a short time, and the ice making efficiency can be improved.

According to the eighth aspect of the present invention, when the ice is discharged from the ice discharge port, the lower end portion of the ice is left in the ice making space forming body and discharged, and the remaining ice is discharged. By using the closing lid, as in the invention according to claim 3, it is possible to prevent impurities such as dust and bacteria from entering the ice making space forming body from the ice discharge port at the upper portion of the ice making space forming body during ice making. This can be prevented by the closing lid, and clean ice free of impurities can be produced.

According to the ninth aspect of the invention, the useful gas is dissolved in the water to be injected into the ice-making space forming body, so that the ice containing the useful gas is generated as in the invention of the fourth aspect. can do. In particular, by blocking the ice discharge port at the top of the ice making space forming body with the ice making space forming body closing lid to make ice, it is possible to prevent the useful gas dissolved in water during ice making from depositing in the air. It can be prevented by a closing lid, and ice containing a high concentration of useful gas can be produced.

Further, during ice making, a pressure increase can be generated in the water in the ice making space forming body with the growth of ice, so that the precipitation of useful gas can be suppressed according to Henry's law, and dissolved. It is possible to generate ice without variations in the density of the useful gas.

According to the tenth aspect of the invention, by using ozone as the useful gas, it is possible to easily produce and provide ice containing ozone at a high concentration, as in the case of the fifth aspect of the invention. In addition, a new usage of ozone having a sterilizing / disinfecting / deodorizing effect can be made possible. Further, it is possible to provide a low-cost storage method of ozone that is easily decomposed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an ice making machine according to a first embodiment.

FIG. 2 is an explanatory diagram of an ice making process.

FIG. 3 is an explanatory diagram of an ice making process.

FIG. 4 is an explanatory diagram of an ice making process.

FIG. 5 is an explanatory diagram of an ice making space forming body according to another embodiment.

FIG. 6 is an explanatory diagram of an ice making space forming body according to another embodiment.

FIG. 7 is an explanatory diagram of an ice making machine according to a second embodiment.

[Explanation of symbols]

A, B ice machine C cooling liquid W ozone water K ozone ice 1,1 'ice making space forming body 1,2 'ice making department 3 water supply piping 4 water supply department 5 Coolant supply unit 6,6 'Side wall 7,7 'Coolant storage tank 8,8 'bottom wall 9,9 'ice outlet 10 Water injection port 11 First sensor 12 Second sensor 13,13 'Coolant reservoir bottom wall 14 Outer wall 15 Coolant storage space 16,16 'Coolant storage tank ceiling wall 17 refrigerator 18a Coolant forward piping 18b Coolant return piping 19 Water tank 20 pressurizing pump 21 Water pressure sensor 22 Centrifugal hammer 23 Ice-making space forming body Closure lid 24 outer wall

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenji Yoshimura             332-1 Kamikoga, Chikushino, Fukuoka Prefecture Fukuoka             Prefectural Industrial Technology Center (72) Inventor Hiromi Yamamoto             332-1 Kamikoga, Chikushino, Fukuoka Prefecture Fukuoka             Prefectural Industrial Technology Center

Claims (10)

[Claims] 1. An ice-making machine for producing ice in an ice-making space forming body by injecting water into a vertically-extending bottomed cylindrical ice-making space forming body to cool the ice-making space forming body, An ice outlet for discharging the generated ice is provided at the top of the ice making space forming body, and a water injection port is provided near the bottom of the ice making space forming body to push up the ice generated by pressurizing water from the water injection opening. And an ice machine configured to discharge ice from the ice discharge port. 2. The ice-making machine according to claim 1, wherein the ice-making space forming body is in a state of gradually expanding upward. 3. When the ice is discharged from the ice discharge port, the lower end of the ice is left in the ice making space forming body and discharged, and the remaining ice is used as an ice making space forming body closing lid. The ice making machine according to claim 1 or claim 2. 4. The ice making machine according to claim 3, wherein a useful gas is dissolved in water to be injected into the ice making space forming body. 5. The ice making machine according to claim 4, wherein the useful gas is ozone. 6. An ice making method for producing ice in an ice making space forming body by injecting water into a vertically extending bottomed cylindrical ice making space forming body to cool the ice making space forming body, An ice outlet for discharging the generated ice is provided at the top of the ice making space forming body, and a water injection port is provided near the bottom of the ice making space forming body to push up the ice generated by pressurizing water from the water injection opening. An ice making method characterized by discharging ice from an ice discharge port. 7. The ice-making method according to claim 6, wherein the ice-making space forming body is gradually expanded upward. 8. When the ice is discharged from the ice discharge port, the lower end of the ice is left in the ice making space forming body and discharged, and the remaining ice is used as an ice making space forming body closing lid. The method for making ice according to claim 6 or 7. 9. The ice making method according to claim 8, wherein a useful gas is dissolved in the water injected into the ice making space forming body. 10. The ice making method according to claim 9, wherein the useful gas is ozone.