JP2019120480A - Ice making device - Google Patents

Abstract

To provide an ice making device that prevents generation of chlorine gas due to an equilibrium reaction by producing high-purity hypochlorous acid water without using special electrolytic raw water or special treatment, and that does not produce waste water of alkaline water.SOLUTION: An ice making device is configured by integrating an electrolytic water producing device for producing electrolytic hypochlorous acid water in an anode chamber by supplying electrolyte aqueous solution to a cathode chamber of an electrolysis chamber from an electrolyte aqueous solution storage unit for storing an electrolyte, and supplying electrolytic raw water to the anode chamber of the electrolysis chamber for executing electrolysis, and a cooling device for cooling the electrolytic hypochlorous acid water produced in the anode chamber and making ice.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an ice making apparatus, and in particular, it generates high purity hypochlorous acid water without special electrolytic raw water or special treatment to prevent generation of chlorine gas by an equilibrium reaction, and to generate alkaline water. The present invention relates to an ice making apparatus that does not generate waste water.

  Fresh food and fresh food such as fish and shellfish and vegetables (hereinafter referred to as fresh food) is a distribution process until it reaches the consumer, where bacteria adhering to the surface proliferate, contaminated containers and human hands Contaminated by fresh adhesion of bacteria for direct contact.

  In order to prevent such growth of bacteria and contamination with new bacteria, for example, ice as described in Patent Document 1 and a method of using the same have been proposed. In patent document 1, the acidic electrolyzed water produced | generated by electrolyzing a salt solution is made into ice, fresh food is kept cold with the obtained ice, and the bacteria, the virus, etc. from the reduction of the adhesion microbe on the fresh food surface and bacteria from the outside By preventing secondary pollution, ice is kept cold with ice during transport, storage and display of fresh food to keep freshness and quality.

  In addition, a method of producing electrolyzed water ice as described in Patent Document 2 is also proposed. In patent document 2, it is acidic electrolyzed water ice which made the acidic electrolyzed water whose sodium ion concentration is 200 ppm or less, pH 4.5-6.8, hydrogen chloride concentration 0.01-21% frozen under the cooling condition of -40 degrees C or less. Perishable foods etc. are preserved, and the effect of the bactericidal activity is maintained for a long time.

  Thus, since the acid electrolyzed water ice cools and suppresses the growth of bacteria, and the bactericidal action of the acid water generated by thawing can kill the bacteria adhering to the surface and the bacteria due to secondary contamination, the bacteria adhere It is widely known that it is suitable as storage ice for easy-to-use fish and shellfish.

  However, when preserving fish and shellfishes with acid-electrolyzed water ice, it is preferable that acid-electrolyzed water ice hardly melts as much as possible in order to safely preserve fish and shellfish etc. over a long period of time. The acidic electrolyzed water ice has a freezing structure which is weak and easily broken because the temperature in the freezing chamber is -15 to -25.degree. For this reason, when long transportation time is required, such as when transporting fish and shellfishes to a distant place, or when the display time after transportation is long, the heat insulation becomes insufficient, resulting in a reduction of the sterilizing power, and safety Problem is that it is impossible to obtain

  On the other hand, when acidic electrolyzed water is frozen to obtain acidic electrolyzed water ice, the formation of ice generally begins to freeze from pure water in the solution, and the impurities are subsequently frozen, so acidic electrolyzed water contains many mineral components. When included, it requires cryogenic temperatures and long times to freeze completely. For this reason, in order to produce a large amount of ice, it is necessary to expand the equipment and increase the size and to provide a large power supply.

  Therefore, a method of preserving fish and shellfish as described in Patent Document 3 has been proposed. According to Patent Document 3, a high voltage of 5 to 100 kv in acidic electrolyzed water having a pH of 2.5 to 6.5 and a chlorine concentration of 20 to 200 ppm obtained by electrolyzing an aqueous solution of deep sea water, seawater or sodium chloride An acidic electrolyzed water ice made by applying an electric field is used to preserve seafood and the like.

  According to Patent Document 3, by applying a high voltage electric field to acidic electrolyzed water to produce ice, it is possible to produce acidic electrolyzed water ice having a strong icing structure and which is difficult to thaw in a short time. When stored in this acidic electrolyzed water ice, since ice lasts long, it is said that it is possible to cool fish and shellfish for a long time and maintain its freshness.

In addition, since deep sea water is a clean saline solution free of bacteria and the like, it can be used as it is as raw water for electrolysis, and the acid electrolyzed water obtained from this raw water has a high concentration of chlorine contained. Since it is possible to obtain acidic electrolyzed water ice having high bactericidal power, it is suitable for preservation of fish and shellfish, and is particularly effective for preserving fish and shellfish and the like in the ocean.

Japanese Patent Application Laid-Open No. 11-101536 Japanese Patent Laid-Open No. 2002-350016 JP, 2005-333922, A

However, according to the method for preserving fish and shellfish using acidic electrolyzed water ice described in Patent Document 3, there are the following problems.
That is, although deep sea water, seawater or an aqueous solution of sodium chloride is used as raw water for electrolysis, when acidic electrolyzed water obtained from this raw water contains salt (NaCl), the osmotic pressure by salt causes fresh fish cells to be used. There was a problem in which water was removed from the water, a problem in which salt was soaked in the fish meat, and a problem in which the fish meat surface was whitened. Moreover, when using deep ocean water as electrolyzed raw water, there is also a problem that it takes time and cost for collection and transportation from the deep sea and it becomes expensive due to its scarcity.

  In addition, if the acidic electrolyzed water contains salt, chlorine gas is generated by the equilibrium reaction, and hypochlorous acid evaporates and disappears from ice in a very short time, and the sterilization and deodorizing effects are diminished, as well as unique chlorine There was a problem that odor was attached to fresh fish, and a problem that dangerous chlorine gas was released at once when opening a closed lid of a hold filled with chlorine gas.

  Also, by applying a high voltage electric field of 5 to 100 kv to acidic electrolyzed water to produce ice, acidic electrolyzed water ice which is hard to thaw can be produced in a short time, but equipment for applying an electric field of high voltage In the small fishing boat, there is a problem that the equipment is difficult and the cost is increased.

  Furthermore, in a single-diaphragm type electrolysis apparatus, hypochlorous acid water containing an electrolyte is electrolyzed per electrolyte in which a necessary concentration (for example, around 1000 ppm) is dissolved in the cathode chamber and the anode chamber. In the cathode compartment, alkaline water is also produced, which also contains an electrolyte. At this time, when using only acidic water, there has been a problem that alkaline water is discarded and important water purification, power consumption, electrolytes and the like are discarded.

  Therefore, the object of the present invention is to produce high purity hypochlorous acid water without special electrolytic raw water or special treatment, to prevent generation of chlorine gas by the equilibrium reaction, and to discard alkaline water It is an object of the present invention to provide an ice making apparatus integrated with an electrolyzed water generating apparatus which does not generate

  In order to achieve the above object, the present invention supplies an aqueous electrolytic solution from an aqueous electrolytic solution storage portion containing an electrolyte to a cathode chamber of an electrolysis chamber, and supplies an electrolytic raw water to the anode chamber of the electrolysis chamber for electrolysis. An electrolyzed water generating device for producing high purity electrolyzed hypochlorous acid water in an anode chamber and a cooling device for cooling and producing the high purity electrolyzed hypochlorous acid water produced in the anode chamber are integrated. An ice making apparatus characterized by the above is provided.

  In the above configuration, the aqueous electrolyte solution storage unit is in communication with the cathode chamber, and the aqueous electrolyte solution is circulated and supplied to the cathode chamber.

  The electrolytic raw water supplied to the anode chamber may be fresh water, soft water or pure water.

  Further, the cathode chamber and the anode chamber are separated by an anion permeable membrane.

  Further, a non-woven fabric may be provided on the anode chamber side of the anion permeable membrane, and a fixing part may be provided on the side where the cathode is known.

  Further, on the inside of the anode chamber and on the discharge side of the electrolytic hypochlorous acid water, there is disposed an acidic water stirrer which stirs chlorine gas bubbles generated on the electrode surface and the electrolytic raw water to make gas-liquid contact. It is characterized by

  Further, the electrode disposed in the cathode chamber is characterized in that stainless steel and / or titanium is plated with platinum. Further, the electrode disposed in the anode chamber is characterized in that titanium is used as a base material and the surface is plated with magnesium. Further, the shape of the electrode is characterized in that it is a mesh formed by weaving fine lines or an expanded mesh.

  Further, the electrolyte is characterized in that it is any one of NaCl, KCl or HCl.

  Further, in order to achieve the above object, the present invention provides an electrolyzed water generating apparatus that generates electrolyzed hypochlorous acid water by supplying an aqueous electrolytic solution from an aqueous electrolytic solution storage unit containing an electrolyte to an electrolytic chamber to perform electrolysis. According to another aspect of the present invention, there is provided an ice making apparatus comprising: a cooling device configured to cool and ice the produced electrolytic hypochlorous acid water.

  The electrolyte is characterized in that it is dilute hydrochloric acid.

  Further, the electrolytic hypochlorous acid water generated by the electrolyzed water generating device is characterized in that its concentration and supply amount are adjusted by a flow rate adjusting valve and supplied to the cooling device.

  According to the ice making apparatus of the present invention, since it is configured as described above, it is difficult for an equilibrium reaction to occur, chlorine gas is hard to be generated, salt does not enter, and hypochlorous acid has 80 times the bactericidal power of sodium hypochlorite. Chloric acid water can produce hypochlorous acid concentrations of 30 to 60 ppm with a purity of greater than 99.999%, which allows for an icing temperature that is not different from normal tap water.

  For this reason, fresh fish caught in ice water used in freshwater stores such as salamander, sardines, tuna, etc. are stored in the ice water of the hold in the fishing ground where fish are caught, rapid cooling of fresh fish, and keeping freshness, Also, it is possible to sterilize microbes attached to fresh fish displayed at stores in a short time of several seconds to several tens of seconds.

  Furthermore, there is no problem of osmotic pressure due to salt that will extract water from the cells of fresh fish that has been cooled, etc., while bactericidal components can continue to elute while ice is melting, etc. There is no stretching or fresh fish meat bleached, and no strong odor such as conventional sodium hypochlorite (NaClO) adheres to it. Hypochlorous acid also has an astringent effect, etc. Safe and highly fresh fish can be provided with various effects such as prevention of rough hands.

  In addition, the dissolved hypochlorous acid is instantaneously decomposed and eliminated by the organic matter adhering to the surface of the fish and the like, and the generation of chlorine gas hardly occurs and the secondary problem does not occur.

  The electrolyzed water generator is capable of generating electrolyzed water with high performance of 3.2 V, 3 A × 1 L / min, and the power consumption is weak compared to other electrolyzed water generators, resulting in low cost. It is possible to provide an electrolyzed water having high performance such as no abnormality in meat quality, no sticking of odor, and a long freshness holding period, and an ice making device for ice.

  It is a schematic block diagram which shows the apparatus structure of the electrolyzed water generating apparatus used for the ice making apparatus of this invention.   It is a schematic block diagram which shows the apparatus structure of the acidic water ice manufacturing apparatus which integrated and integrated the electrolyzed water generating apparatus and cooling device which were demonstrated in FIG.

An ice making apparatus according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic configuration view showing an apparatus configuration of an electrolyzed water generating apparatus 10 used in an ice making apparatus 100 of the present invention.

  The electrolyzed water generating apparatus 10 takes in tap water, soft water or pure water containing no electrolyte as the electrolysis raw water into the anode chamber 20, takes in the electrolyte aqueous solution from the electrolyte aqueous solution storage unit 70 in one cathode chamber 30, and circulates it. It is a single-diaphragm two-chamber type electrolytic acid water production dedicated device that produces hypochlorous acid water of high purity at 20 ° C.

  More specifically, the cathode chamber 30 is in communication with the electrolyte aqueous solution storage unit 70 and the pump electrolyte station supply unit 31 which is a pipe with a pump and the electrolyte solution discharge unit 32 which is a return piping, The part 70 contains salt (NaCl) or potassium chloride (KCl) as an electrolyte. The aqueous electrolyte solution stored in the aqueous electrolyte solution storage unit 70 is circulated and supplied to the cathode chamber 30 by the pump electrolyte solution supply unit 31.

  On the other hand, fresh water, soft water, pure water, or the like is supplied from the electrolytic raw water supply unit 21 to the anode chamber 20 as electrolytic raw water.

  The cathode chamber 30 and the anode chamber 20 are separated by an anion permeable membrane 40, and only chloride ions are supplied to the anode chamber 20 from the cathode chamber 30.

  In the cathode chamber 20 of the anion-permeable membrane 40 to be a partition wall, the membrane holding portion 50 and the anode chamber 30 are provided with a partition protection film 51 made of non-woven fabric or the like with good water permeability and ion retention body. To prevent direct contact between the cathode 90 and the anode 80, to prevent deterioration of the anion permeable film 40 due to electrolytic heat, and to retain anions drawn to the anode chamber side in the vicinity of the electrode to increase current density. .

  On the other side of the anode chamber 30 facing the cathode chamber 20, there is disposed an acidic water agitator 60 for agitating the acid water generated by the electrolysis of the electrolytic raw water for gas-liquid contact.

  The chlorine gas and electrolytic raw water stirred by the acidic water stirrer 60 repeatedly contact the gas and liquid to efficiently generate hypochlorous acid water, and become high purity hypochlorous acid water having a purity of 99.99% or more. Electrolyzed hypochlorous acid water having a chloric acid concentration in the range of 30 to 120 ppm (preferably 40 to 60 ppm) is produced and discharged from the produced acidic water discharge passage 22.

  The cathode 90 is made of stainless steel and / or titanium with platinum plating, and the anode 80 is made of titanium as a base material and magnesium plating is applied to the surface, and the shape of each electrode is fine line or expanded It has a mesh shape. The control box 500 also contains a power supply and various control units.

  The electrolyzed water generator 10 has a high performance of 3.2 V · 3 A × 1 L / min, and the power consumption is very weak compared to other electrolyzed water generators, so high-performance electrolytic acid water can be produced at low cost. Can be generated.

FIG. 2 is a schematic configuration view showing an apparatus configuration of the ice making apparatus 100 in which the electrolyzed water generating apparatus 10 and the cooling apparatus 50 described in FIG. 1 are integrated and incorporated.
The cooling device 50 includes an ice making unit 220 for making the electrolyzed hypochlorous acid water produced by the electrolyzed water producing device 10, an ice storage unit 300 for storing the ice made by the ice making unit 220, and a compression for cooling the gas refrigerant. A cooling unit 400 for compressing electrolytic hypochlorous acid water which is compressed by a machine 410 and converted into cold air by a heat exchanger 430 and circulated into the interior by a cooling fan 420 to be supplied to the ice making unit 220. .

  The electrolytic hypochlorous acid water generated in the anode chamber 20 is discharged from the generated acidic water discharge passage 22 of the anode chamber 20 and temporarily stored in the acidic water temporary storage unit 200, and the concentration and the supply amount are adjusted by the flow control valve 210. Is adjusted and supplied to the ice making unit 220 of the cooling device 50 to ice electrolytic hypochlorous acid water.

  The ice-made ice is stored in the ice storage unit 300 for storing the ice, and to the ice making unit 220 from which the ice has been removed, electrolytic hypochlorous acid water is again supplied from the acid water temporary storage unit 200 and cooled. Ice-making. Although not shown, the ice storage unit 300 is provided with an extraction unit for extracting the generated ice.

  The operation of the apparatus for producing acidic electrolyzed water ice according to the embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

  First, when the power is turned on, the control box 500 senses the water level with the water level sensor disposed in the acidic water temporary storage unit 200 and determines that the electrolytic water for storage is insufficient. The liquid supply unit 31 operates to supply the aqueous electrolyte solution only to the cathode chamber 30, and at the same time, the electrolysis raw water supply unit 21 is released, and the electrolysis raw water is supplied to the anode chamber 20.

  This operation confirmation is monitored by the control box 500, and when normal is confirmed, the electrode 80 is energized to apply electricity to the electrolyzed water to start electrolysis, thereby producing electrolyzed hypochlorous acid water.

  When the electrolytic hypochlorous acid water for storage becomes full in the acidic water temporary storage unit 200, the electrolyzed water generation device 10 stops its operation and rotates the ice making unit 220 to drop the ice in the ice making unit 220. When it is confirmed that there is no ice in the ice making unit 220, the flow rate adjusting valve 210 with flow control is released, and the necessary amount of electrolytic hypochlorous acid water is supplied from the acid water temporary storage unit 200 to the ice making unit 220.

  The time-controlled ice is stored in the ice storage room 300. At this time, the refrigerant is heat exchanged between the cooling compressor (compressor) 410, the cooling fan (fan) 420, and the heat exchanger (condenser) 430 to cool the ice making unit 220, and the electrolytic hypochlorous acid of high purity Ice the water.

  According to the ice making apparatus according to the embodiment of the present invention, electrolytic hypochlorous acid water having a purity of at least 99.999% and a hypochlorous acid concentration in the range of 30 to 120 ppm (preferably 40 to 60 ppm) Can be generated by Since this electrolytic hypochlorous acid water does not contain salt and chlorine gas is less likely to be generated, the equilibrium reaction hardly occurs.

  Therefore, hypochlorous acid evaporates and disappears from ice, and the sterilizing and deodorizing effects do not fade in a short time, and no unique chlorine odor adheres to fresh fish. In addition, since sodium chloride is not required, hypochlorous acid water having 80 times the bactericidal power of sodium hypochlorite can be frozen at a freezing temperature which is not different from ordinary tap water.

  The ice obtained by freezing the electrolytic hypochlorous acid water obtained here is used as a hold for rapidly cooling and storing fresh fish such as saury, sardines and tuna caught in a fishing ground, or used for ice at a fresh fish store In addition to cooling the fresh fish, it can also disinfect and deodorize the fresh fish in the storehouse including the frozen storage, etc. Moreover, the microbes adhering to the fresh fish to be displayed at the store are disinfected in a short time of several tens of seconds be able to.

  Furthermore, since salt does not enter, there is no osmotic pressure problem due to salt extracting water from cooled fresh fish cells, and while ice melts, the bactericidal component continues to elute, so freshness The holding time is extended dramatically.

  In addition, it is possible to provide safe and highly fresh fish with various effects such as no bleaching of fresh fish meat and no strong odor such as conventional sodium hypochlorite (NaClO) attached. Become.

  In addition, the dissolved hypochlorous acid is instantaneously decomposed and extinguished by the organic matter adhering to the surface of the fish, and the like, and the generation of chlorine gas hardly occurs and the secondary problem does not occur.

  In addition, in current ice making machines that produce fresh water such as tap water, fresh water has no bactericidal power, and the ice storage in the ice making machine etc. scatters in the air by frequently opening and closing the ice when taking in and out. Microorganisms (fungi) adhering to the wall surface in the storage of ice and the ice making section communicating with the storage, etc., the tap water also contains microorganisms that have not been fully disinfected, It adheres to the inner wall of the pipe that supplies water for ice making, the connection between them, and the ice tray, and causes mold formation.

  For this reason, sterilization is carried out by regular cleaning maintenance to prevent the occurrence of mold, but in the present invention, the range of 30 to 120 ppm of hypochlorous acid with a purity of 99.999% or more (desirably 40 to Since 60 ppm of acidic water can be generated by the electrolyzed water generating apparatus 10, those problems can be solved and maintenance free.

  In addition, since only acidic electrolyzed water is produced, alkaline water is not produced, and therefore, the problem of generation of waste water of alkaline water does not occur. Therefore, it is possible to provide a low cost and high performance ice making machine.

  Although the above-mentioned electrolyzed water generating apparatus is an example of a single-diaphragm two-chamber type apparatus having only an anion permeable membrane, the present invention is not limited to this, and non-diaphragm type electrolyzed water without a diaphragm A generator may be used.

  FIG. 3 is a schematic configuration view showing an apparatus configuration of the non-diaphragm type electrolyzed water generating apparatus 11. The same reference numerals are given to the same contents as in FIG. 1 and FIG. 2 and thus the duplicate explanation is omitted, but in this electrolytic water generating device 11, the cathode 30 and the anode 20 are disposed in the electrolysis chamber 12, It is configured to have an aqueous electrolyte solution storage unit 71 adjacent to the chamber 12.

  A dilute hydrochloric acid which is an electrolyte is stored in the electrolytic aqueous solution storage unit 71, and the flow control valve 72 is controlled to supply a necessary amount of the dilute hydrochloric acid into the electrolysis chamber 12, and the cathode 30 and the anode 20 arranged in the electrolysis chamber 12. A current is applied to

  By this electrolysis, dilute hydrochloric acid is produced as electrolytic hypochlorous acid water of high purity, and is discharged from the produced acidic water discharge passage port 23. The discharged electrolytic hypochlorous acid water is diluted and adjusted to an arbitrary concentration with fresh water adjusted by the flow rate adjustment valve 211.

  Thus, as long as it produces hypochlorous acid water of high purity, not only one-diaphragm two-chamber type electrolyzed water generating device but also non-diaphragm type electrolyzed water generating device or other electrolyzed water generating devices, It goes without saying that a two-diaphragm three-chamber type electrolyzed water generator may be employed.

10: electrolyzed water generator 11: electrolyzed water generator 12: electrolyzer 20: anode chamber 21: electrolyzed raw water supply unit 22: formed acid water discharge passage 23: formed acid water discharge passage 30: cathode chamber 31: electrolyte solution with pump Supply unit 32: electrolyte solution discharge unit 40: partition 50: cooling device 50a: partition protective film 50b: partition protective film 60: acidic water stirrer 70: electrolyte aqueous solution storage unit 71: electrolyte aqueous solution storage unit 72: flow control valve 80: Anode and terminal 90: Cathode and terminal 100: ice making device 200: acid water temporary storage unit 210: flow control valve 211: flow control valve 220: ice making unit 300: ice storage unit 400: cooling unit 410: cooling compressor 420: Cooling fan 430: heat exchanger 500: control box

  It is a schematic block diagram which shows the apparatus structure of the electrolyzed water generating apparatus used for the ice making apparatus of this invention.   It is a schematic block diagram which shows the apparatus structure of the acidic water ice manufacturing apparatus which integrated and integrated the electrolyzed water generating apparatus and cooling device which were demonstrated in FIG.   It is a schematic block diagram which shows the apparatus structure of a non-diaphragm type electrolyzed water generating apparatus.

Claims (13)

An electrolytic aqueous solution is supplied from an aqueous electrolytic solution storage portion containing an electrolyte to the cathode chamber of the electrolysis chamber, and the electrolysis raw water is supplied to the anode chamber of the electrolysis chamber for electrolysis to produce electrolysis hypochlorous acid water in the anode chamber. A water generator,
A cooling device that cools and ices the electrolytic hypochlorous acid water generated in the anode chamber;
An ice making apparatus characterized in that it is integrated.   The ice making apparatus according to claim 1, wherein the aqueous electrolyte solution storage unit is in communication with the cathode chamber and circulates and supplies the aqueous electrolyte solution to the cathode chamber.   3. The ice making apparatus according to claim 1, wherein the electrolysis raw water supplied to the anode chamber is fresh water, soft water or pure water.   The ice making apparatus according to any one of claims 1 to 3, wherein the cathode chamber and the anode chamber are separated by an anion permeable membrane.   The ice making device according to any one of claims 1 to 4, wherein a non-woven fabric is disposed on the anode chamber side of the anion permeable membrane, and a diaphragm fixing portion is disposed on the cathode chamber side. .   The acidic water stirring body which stirs electrolytic raw water, and performs gas-liquid contact is arrange | positioned by the discharge side of the electrolytic hypochlorous acid water of the said anode chamber, It is characterized by the above-mentioned. Ice maker as described in.   The ice making apparatus according to any one of claims 1 to 6, wherein the electrode disposed in the cathode chamber is made of stainless steel and / or titanium with platinum plating.   The ice making apparatus according to any one of claims 1 to 7, wherein the electrode disposed in the anode chamber is made of titanium as a base material and magnesium-plated on the surface.   The ice making device according to claim 7 or 8, wherein a shape of the electrode is a fine line or an expanded mesh shape.   The ice making apparatus according to any one of claims 1 to 9, wherein the electrolyte is any one of NaCl, KCl or HCl. An electrolyzed water generating device for producing electrolyzed hypochlorous acid water by supplying an aqueous electrolytic solution to the electrolytic chamber from the aqueous electrolytic solution containing portion for containing an electrolyte and performing electrolysis;
A cooling device that cools and ices the generated electrolytic hypochlorous acid water;
An ice making apparatus characterized in that it is integrated.   The ice making apparatus according to claim 11, wherein the electrolyte is dilute hydrochloric acid.   The electrolytic hypochlorous acid water produced | generated by the said electrolyzed water production | generation apparatus is adjusted to a density | concentration and supply_amount by a flow volume adjustment valve, and supplied to the said cooling device, It is characterized by the above-mentioned. Ice maker as described.