JP6324560B1 - Ice making apparatus and ice production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a disadvantage that an ice making device has a disadvantage that an increase in a load of a compressor in a heat pump as a heat source device and an increase in energy consumption when the temperature is high in summer or the like. An ice making device 100 having an ice making machine main body 110 provided with a heat source device, an ice storage 112 and a radiator 120 of the heat source device, and includes a heat pump 181 using heat of groundwater as a heat source, The ice making device 100 is configured to be able to cool the ice raw water supplied to the ice making machine main body 110 to about 10 ° C. by the heat pump 181. [Selection] Figure 1

Description

  The present invention relates to an ice making device for producing ice for refrigerated storage of seafood or for air conditioning and heating, and a method for producing the ice.

  Today, sherbet-like or snow-like ice is sometimes used as ice for maintaining the freshness of seafood. In the production of this ice, a part of the raw water is frozen by the heat exchanger with the refrigerant from the refrigerator, and the raw water partially frozen is circulated between the storage unit and the heat exchanger, so that the sherbet or snow There has been proposed an ice making device that manufactures ice in a storage portion (for example, Patent Document 1).

  Various types of ice making apparatuses for producing flaky ice used for refrigeration of foods are used, for example, an auger type ice making apparatus. In this auger type ice making device, a heat pump is used as a freezing device for ice making, a secondary refrigerant having a viscosity lower than that of the refrigerant used in the heat pump is cooled and liquefied, and the secondary refrigerant is vaporized in a heat exchange part of the cooling casing. There are some which freeze raw water in the cooling casing. Then, the ice in the cooling casing is scraped off by an auger and stored in an ice storage disposed below the cooling casing. As described above, an auger type ice making device has been proposed that can use a heat pump and a secondary refrigerant to increase the ice making efficiency and reduce the power consumption while reducing the influence of environmental changes such as the outside temperature (for example, Patent Document 2).

  Furthermore, as an ice making device for producing sherbet-like ice, a low-temperature refrigerant generated by a heat source device is used, and air compressed to several atmospheres is cooled to 0 ° C. or lower by an air cooling unit, and this low-temperature compressed air is There has also been proposed a dynamic type ice making device that increases the ice making efficiency, is highly reliable, and is easy to maintain by adiabatic expansion in the water tank to freeze the raw water in the water tank (for example, Patent Documents). 3).

  Then, as an ice making device for producing plate-shaped or block-shaped ice for food refrigeration or air conditioning, a low-temperature refrigerant is stored in a flash tank via a compressor, a condenser, and an expansion valve, and this low-temperature refrigerant is made into ice-making. There has also been proposed a harvesting type ice making apparatus that efficiently supplies plate-shaped or block-shaped ice blocks by supplying to a plate (for example, Patent Document 4).

  As described above, in various types of ice making apparatuses, many ideas for improving ice making efficiency have been made. And the refrigerant | coolant for cooling the refrigerant | coolant for freezing raw material water or the refrigerant | coolant for freezing raw material water is often made low temperature by the heat pump system. And as a condenser in a heat pump incorporated in an ice making device as a heat source device for cold heat, an outdoor unit or the like is used, and the heat of the refrigerant that has been heated by a compressor in the heat pump is released into the atmosphere by a condenser arranged outdoors. In this way, the one that is cooled and then sent to the expansion valve to improve the cooling efficiency (for example, Patent Document 5) is often used today.

Japanese Patent Laying-Open No. 2015-215147 JP 2010-276286 A JP-A-10-170110 JP-A-8-261614 Japanese Patent Laid-Open No. 10-103822

  As described above, various measures have been taken to increase the cooling efficiency during ice making and reduce power consumption. However, in ice making equipment that employs a heat pump system that uses atmospheric heat using an outdoor unit, the temperature in summertime, etc. Is high, it is difficult to overcome the disadvantage that the load on the compressor in the heat pump as the heat source device increases and the energy consumption increases.

  The present invention provides an ice making device and a method for producing ice that can eliminate such drawbacks and can reduce the increase in energy consumption when energy efficiency is high and the outside air temperature is high. .

An ice making device according to the present invention is an ice making device having an ice making machine body provided with a heat source device, an ice storage and a radiator of the heat source device, and includes a heat pump using heat of groundwater as a heat source, and the ice making device The ice raw water supplied to the main body can be cooled to about 10 ° C. by the heat pump.
The ice making device includes a well for storing the groundwater as the heat source of the heat pump, is connected to the radiator in series, and is capable of circulating the refrigerant of the heat source device together with the radiator. An exchanger is provided in the well.

Also, the ice making apparatus is provided with a water supply tank and ground water tank, the raw water accumulating in the water tank by the heat pump the groundwater stored in the groundwater reservoir as a heat source water may be cooled around 10 ° C..

In addition, the ice-making device may underground water accumulated before listening door comprising a water pump to be sent to the ground water tank.

  The ice making apparatus includes two wells for storing groundwater, a water pump for sending the groundwater stored in one of the two wells to the groundwater tank, and drainage from the groundwater tank. Of the two wells, a drain pipe that discharges the other well of the two wells, and a heat exchanger that is in series with the radiator and circulates the refrigerant of the heat source device together with the radiator. At least one may be provided.

  The ice making apparatus further includes two wells for storing ground water as heat source water for the heat pump, supplies cold heat to the heat pump by ground water stored in one well, and supplies cold heat to the heat pump. The ground water is returned to the other well, a heat exchanger that allows the refrigerant to pass from the radiator to the ice maker body is passed through the one well, and the ice well body is sent from the ice maker body to the radiator. A heat exchanger that allows the refrigerant to pass through may be provided.

The method for producing ice according to the present invention, the heat source upon the heat of groundwater performing the ice making machine main body provided with a heat source device, and the radiator and the ice bin of the heat source device, the ice using the ice making device having A heat pump, a well provided with the groundwater as a heat source of the heat pump, a heat exchanger provided in the well, the heat exchanger and the radiator being in series, the refrigerant of the heat source device being the heat exchange This is a method for producing ice, which is circulated through a chiller and the radiator and the ice raw material water supplied to the ice making machine main body is cooled to about 10 ° C. in advance by a heat pump and then supplied to the ice making machine main body.

Furthermore, the manufacturing method of the ice, the heat source apparatus of the ice making machine main body may be a method for manufacturing ice for freezing the raw water as a heat pump system that also utilizes a groundwater heat combined with atmospheric heat.

  Since the ice making device according to the present invention freezes raw material water by the ice pump main body having the heat source device in advance at around 10 ° C. by the heat pump, when freezing the raw water at 10 ° C. or higher, It is possible to provide an ice making device and an ice manufacturing method that can reduce the temperature of raw material water by a heat pump that consumes less energy than a heat source device, and that can reduce energy consumption during ice production.

In addition, by using an ice making device that has a well for storing groundwater and that can be connected in series with the heat dissipation device, the heat exchanger uses atmospheric heat and the heat exchanger uses groundwater heat. be able to. For this reason, the heat pump used as the heat source device of the ice making device uses the groundwater heat as a heat source in combination with the atmospheric heat, and the ice making device capable of making ice without reducing the efficiency of the heat source device even when the outside air temperature is high, A method for producing ice can be provided.

Since groundwater heat is used together with atmospheric heat, it is not necessary to enlarge the well for storing groundwater, and it is possible to easily install an ice making device and implement an efficient ice production method.

In addition, an ice making device equipped with a groundwater tank together with a heat pump can store groundwater at around 10 ° C in the groundwater tank and supply cold heat to the heat pump throughout the year. This heat of the groundwater stabilizes the operation of the heat pump and efficiently. It is possible to implement an ice making apparatus and an ice manufacturing method that can be operated and that can easily keep the temperature of raw material water at around 10 ° C. by reducing energy consumption.

And the ice making device which has a water supply tank and supplies raw material water to the ice making machine main body while temporarily storing it can always supply the raw water having a temperature of about 10 ° C. to the ice making machine main body stably. This makes it possible to reduce the fluctuations in energy consumption and the fluctuations in efficiency due to, and to maintain the operation with less energy consumption.

  In addition, an ice making device that has a well and a water pump that stores groundwater and sends groundwater to the groundwater tank stably supplies groundwater to the groundwater tank, and uses the groundwater stored in the groundwater tank to efficiently stabilize the heat pump. By operating, it becomes easy to keep energy consumption small.

  And ice making equipment that has two wells for storing groundwater, supplying groundwater from one well to the groundwater tank and draining the other well from the groundwater tank is restricted in terms of groundwater use, such as pumping groundwater. If it is possible to install the ice making device in this area, and if a heat exchanger is placed in this well so that it can be connected in series with the heat dissipation device of the heat source device, it can be In addition, it is possible to prevent ice from being increased in energy consumption.

  In addition, two wells are provided, groundwater from one well is supplied to the groundwater tank and drained to the other well, and one well is provided with a heat exchanger connected to the connecting return path from the heat radiating device. The ice making device, which has a heat exchanger connected to the connection to the heat dissipation device in the other well where the groundwater is discharged from the tank, increases the utilization rate of groundwater heat and increases the energy consumption of the ice making machine itself. It is possible to easily maintain high operating efficiency of the heat pump that cools the raw material water in advance while preventing it.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic which shows 1st Embodiment of the ice making apparatus which concerns on this invention. The schematic diagram which shows 2nd Embodiment of the ice making apparatus which concerns on this invention. The schematic diagram which shows 3rd Embodiment of the ice making apparatus which concerns on this invention.

  As shown in FIG. 1, a first embodiment of an ice making device 100 according to the present invention includes an ice making machine main body 110 and an ice storage 112, and is separated from the ice making machine main body 110 and is disposed outdoors. The heat sink 120 is provided.

  The radiator 120 includes a fan motor 123, a fan 125, and a condenser 121. The condenser 121 is a condenser 121 of a heat pump as a heat source device incorporated in the ice making machine main body 110, and is configured to absorb air heat. The heat of the refrigerant that has been compressed at a high temperature by the compressor of the heat pump is dissipated so as to collect heat.

  Then, the refrigerant is expanded to a negative temperature by an expansion valve of a heat pump as a heat source device, and the raw water supplied from the water supply pipe 119 to the ice making machine main body 110 is frozen by this refrigerant or directly through another refrigerant. The ice produced by this freezing is stored in the ice storage 112.

  Further, an open / close valve 131 is provided in the connection forward path 127 connecting the ice making machine main body 110 and the radiator 120, and a refrigerant pump 115 is provided in the connection return path 129 so that the refrigerant cooled to near the atmospheric temperature by the condenser 121 is made into ice. It returns to the main body 110.

  The refrigerant pump 115 may be omitted, and the refrigerant may be sent to the radiator 120 and returned to the ice making machine main body 110 by the discharge pressure of the compressor in the heat pump as the heat source device. However, in order to reliably return the heat medium to the ice making machine main body 110 through the heat exchanger and the radiator 120 via a heat exchanger described later, it is preferable to provide the refrigerant pump 115.

  Then, the heat exchanger forward path 133 is connected to the connection forward path 127 on the ice making machine body 110 side of the on-off valve 131 provided in the connection forward path 127, and the heat exchanger return path 135 is connected to the connection forward path 127 on the radiator 120 side of the on-off valve 131. Connected.

  The other ends of the heat exchanger forward path 133 and the heat exchanger return path 135 are connected to a heat exchanger 141, and the heat exchanger 141 is submerged in the water of the first well 171.

  The heat exchanger 141 is disposed in the water of the first well 171 in combination with the intake pump 143. The ground water stored in the first well 171 is taken in from the intake port 145 by the intake pump 143. The well water taken into 141 and passed through the heat exchanger 141 can be returned from the discharge port 147 into the first well 171.

  Therefore, when the on-off valve 131 provided in the connection forward path 127 is closed, the heat exchanger 141 and the radiator 120 are connected in series, and the refrigerant discharged from the ice making machine main body 110 to the connection forward path 127 passes through the heat exchanger 141. As a result, heat can be dissipated to the groundwater in the first well 171 and further cooled by dissipating heat to the atmosphere by the condenser 121 in the radiator 120, and returned to the ice making machine main body 110 by the connection return path 129.

  For this reason, even when the outside air temperature is high such as in summer, the temperature of the refrigerant returning to the ice making machine main body 110 can be sufficiently reduced.

  In this ice making device 100, a water supply tank 183 is provided in the water supply pipe 119, and the raw water stored in the water supply tank 183 is sent to the ice making machine main body 110 by a water supply pump 117 provided in the water supply pipe 119.

  Furthermore, the feed water tank 183 is connected to the first heat exchanger 191, and the raw water stored in the feed water tank 183 by the first pump 195 can be sent to the first heat exchanger 191 and returned to the feed water tank 183. I am doing so.

  The first heat exchanger 191 is connected to a cold discharge port of the heat pump 181 via an evaporator built in the heat pump 181. The second pump 196 discharges the heat pump 181 from the cold discharge port 5 A refrigerant at about 0 ° C. is supplied, and the refrigerant that has passed through the first heat exchanger 191 can be returned to the heat pump 181.

  Further, the heat discharge port of the heat pump 181 via the condenser built in the heat pump 181 is connected to the second heat exchanger 192 via the third pump 197, and the second heat exchanger 192 is It is connected to the heat pump 181 and is connected to the groundwater tank 185 via the fourth pump 198.

  The groundwater tank 185 sucks up groundwater from a water inlet 176 of a water pump 175 submerged in the water of the first well 171, and the groundwater stored in the first well 171 is supplied through the water pipe 177 to the groundwater tank 185. When the stored well water exceeds a predetermined amount, the well water is discharged from the drain outlet 179 through the drain pipe 178 so as to be returned to the second well 172.

Accordingly, the fourth pump 198 is driven to circulate the well water stored in the ground water tank 185 so as to pass through the second heat exchanger 192, and the third pump 197 is driven to supply the refrigerant from the hot discharge port. 2 is sent to the heat exchanger 192, and the refrigerant cooled by the groundwater is returned to the heat pump 181 to operate the heat pump 181 so that the refrigerant of about 5 ° C. is sent from the cold outlet of the heat pump 181 using the groundwater heat. be able to.

  Then, the second pump 196 and the first pump 195 are driven, and the water stored in the water supply tank 183 is circulated through the first heat exchanger 191 so that the water stored in the water supply tank 183 is 10 ° C. It can be easily made back and forth.

  In this way, the raw water stored in the water supply tank 183 that has been heated to about 10 ° C. by the heat pump 181 using the groundwater heat is supplied to the ice making machine main body 110 through the water supply pipe 119 by operating the water supply pump 117. When ice is frozen by the ice making machine main body 110 and the produced ice is stored in the ice storage 112 and used for a desired purpose, it can be taken out from the ice storage 112.

  Accordingly, the ice making device 100 uses the heat pump 181 that uses the heat of groundwater to freeze the raw material water supplied to the ice making machine main body 110 in advance to a temperature of about 10 ° C., and then freezes the ice in the ice making machine main body 110. Even if the temperature of the raw material water exceeds 10 ° C. due to the high temperature, it is possible to prevent the energy consumption of the ice making machine main body 110 from increasing.

  Unlike a heat pump that incorporates a compressor or expansion valve with a negative refrigerant temperature, such as a heat pump as a heat source device built in the ice making machine main body 110, a refrigerant having a temperature of about 5 ° C. is obtained using groundwater heat. The heat pump 181 that is externally circulated has high energy efficiency and can easily save energy as the entire ice making device 100 by supplying raw water to the ice making machine main body 110 at a constant temperature of about 10 ° C. in advance.

  The ice making device 100 has a heat exchanger 141 submerged in the ground water stored in the well in series with the ice maker main body 110 and the separated radiator 120, and uses atmospheric heat and groundwater heat. Therefore, even when the outside air temperature is high, absorption of cold heat is increased to efficiently make ice, and an increase in energy consumption of the ice making machine main body 110 can be prevented.

  In the above embodiment, as shown in FIG. 1, the drainage from the groundwater tank 185 is returned to the second well 172. However, in the area where there is no restriction on the pumping of the groundwater, the second well 172 is provided. Omitted, the drainage from the groundwater tank 185 can be drained as sewage.

  Further, in the second embodiment, as shown in FIG. 2, the heat exchanger 141 including the intake pump 143 provided in the first well 171 is connected to the second well together with the drain pipe 178 of the groundwater tank 185. The first well 171 is provided with an additional heat exchanger 161 having an intake pump 163 in the same manner as the heat exchanger 141 provided in the second well 172.

  The heat exchanger forward path 133 is connected to the heat exchanger 141 provided in the second well 172, and the heat exchanger return path 135 is connected to the additional heat exchanger 161 provided in the first well 171. The heat exchanger 141 in the second well 172 and the additional heat exchanger 161 in the first well 171 are connected by a connecting pipe 137.

  Therefore, when the on-off valve 131 is closed, the refrigerant discharged from the ice maker main body 110 to the connection forward path 127 is sent to the radiator 120 via the heat exchanger 141 and the additional heat exchanger 161, and is supplied to the ice maker main body 110. Will return.

  Then, the heat exchanger 141 disposed in the second well 172 is supplied with the ground water of the second well 172 from the intake port 145 by the intake pump 143 and returns to the second well 172 from the discharge port 147, and the first The additional heat exchanger 161 disposed in the well 171 can be supplied with the groundwater of the first well 171 from the intake port 165 by the intake pump 163 and returned to the first well 171 from the discharge port 167.

  For this reason, the refrigerant discharged from the ice making machine main body 110 is cooled by the ground water in the second well 172 and the ground water in the first well 171 and then cooled by the radiator 120 to return to the ice making machine main body 110. Even if the outside temperature is high, it is sufficiently cooled.

  In addition, the high-temperature refrigerant, for example, around 50 ° C. discharged from the ice making machine main body 110 is first cooled by the ground water in the second well 172 and then cooled by the ground water in the first well 171, and thus is stored in the ground water tank 185. The rise in the groundwater temperature of the first well 171 to be sent can be kept small, and the cooling of the refrigerant by the radiator 120 can be assisted without reducing the efficiency of the heat pump 181.

  Then, the ground water in the first well 171 supplied to the additional heat exchanger 161 disposed in the first well 171 is returned to the first well 171 and the heat exchanger disposed in the second well 172. The groundwater of the second well 172 supplied to the 141 is returned to the second well 172, and the groundwater of the first well 171 supplied from the first well 171 to the groundwater tank 185 is returned to the second well 172. Therefore, it is possible to use groundwater heat even in areas where pumping of groundwater is prohibited.

  Also. In the third embodiment shown in FIG. 3, the heat exchanger forward path 133 and the heat exchanger return path 135 for connecting the heat exchanger 141 arranged in the second well 172 sandwich the on-off valve 131 provided in the connection forward path 127. This is connected to the connection forward path 127. A second opening / closing valve 151 is provided in the connection return path 129, the second heat exchanger forward path 153 connected to the connection return path 129 on the radiator 120 side of the second opening / closing valve 151, and the ice making machine main body of the second opening / closing valve 151 A second heat exchanger return path 155 connected to the connection return path 129 on the 110 side, and an additional second heat exchanger return path 153 and a second heat exchanger return path 155 provided in the first well 171 It is connected to the heat exchanger 161.

  In the third embodiment, since the refrigerant passing through the radiator 120 passes through the additional heat exchanger 161 provided in the first well 171 that supplies well water to the groundwater tank 185, the first well 171 The rise in the well water temperature can be reduced, the rise in the ground water temperature in the first well 171 sent to the ground water tank 185 can be suppressed smaller, and the efficiency reduction of the heat pump 181 can be prevented.

  The first heat exchanger 191 and the second heat exchanger 192, the heat exchanger 141 arranged in the well, and the additional heat exchanger 161 are made up of intake pumps 143 and 163 using plate-type heat exchangers. Is used in combination with a high heat exchange rate, is small and can be easily installed, and is suitable for reducing the energy consumption by increasing the operating efficiency of the heat source device and heat pump 181. .

  However, the heat exchangers are not limited to plate heat exchangers. As the heat exchange arranged in the well, for example, a heat exchange pipe having a coil shape or the like is submerged in the ground water of the first well 171 or the second well 172 without being combined with the intake pumps 143 and 163, or groundwater In some cases, the groundwater is buried in the water vein.

  In addition, since the ice making device 100 uses a type in which the ice making machine main body 110 and the radiator 120 are separated, the heat exchanger 141 arranged in the well or the like and the additional heat exchanger 161 are provided together with the radiator 120. Because it is easy to connect to the ice maker main body 110 so that the radiator 120 and the heat exchanger 141 or the additional heat exchanger 161 can be connected in series, the ice maker is generated by groundwater heat when the atmosphere in summer is high. An increase in energy consumption of the main body 110 can be effectively prevented.

  Then, the heat exchanger 141 and the additional heat exchanger 161 arranged in the well and the like can be connected in series with the radiator 120, and the refrigerant discharged from the ice making machine main body 110 is heat exchanged with the air heat by the radiator 120. Because it is cooled by the groundwater heat generated by the heat exchanger 141 and the additional heat exchanger 161, the heat radiation load on the groundwater is reduced, the well is not required to be deep and large, and ice making including wells is made. Installation of the device 100 can be facilitated.

  In areas where the pumping of groundwater is not prohibited, the wells are omitted, the groundwater is pumped as appropriate, and groundwater is supplied to the heat exchanger 141 and the additional heat exchanger 161 in series with the radiator 120. In some cases, groundwater that has passed through 141 or the additional heat exchanger 161 is allowed to flow into a drain.

  Further, the groundwater tank 185 may be omitted and groundwater may be directly supplied to the second heat exchanger 192, whereby the groundwater heat may be used by the heat pump 181. Further, the second heat exchanger 192 may be omitted and the condenser built in the heat pump 181 may be cooled by groundwater.

  However, by using the second heat exchanger 192, maintenance of related parts around the heat pump 181 can be facilitated, and a decrease in operating efficiency of the heat pump 181 can be prevented.

  Then, the raw water passing through the water supply pipe 119 with the water supply tank 183 omitted is supplied to the ice making machine main body 110 via the first heat exchanger 191, and the raw water is also omitted with the first heat exchanger 191 omitted. Can be supplied to the ice making machine main body 110 via the evaporator of the heat pump 181.

  However, passing the raw water through the first heat exchanger 191 without omitting the first heat exchanger 191 makes it easy to prevent the internal refrigerant of the heat pump 181 from entering the raw water. Can do. In addition, the use of the water supply tank 183 can facilitate the temperature control of the raw water supplied to the ice making machine main body 110.

  The ice making device 100 according to the present invention cools the raw water to be frozen in the ice making body 110 in advance using a heat pump 181 that uses groundwater heat separately from the ice making body 110 to about 10 ° C. Ice can be produced with less energy consumption at 100.

  The refrigerant used in the heat source device of the ice making machine main body 110 is cooled by the heat radiator 120 separated from the ice making machine main body 110 and the heat exchanger 141 arranged in the well. An increase in power consumption can be prevented, and an ice making device 100 and an ice production method capable of performing efficient ice making can be provided.

DESCRIPTION OF SYMBOLS 100 Ice making apparatus 110 Ice machine main body 112 Ice storage 115 Refrigerant pump 117 Water supply pump 119 Water supply pipe 120 Heat radiator 121 Condenser 123 Fan motor 125 Fan 127 Connection forward path 129 Connection return path 131 Open / close valve 133 Heat exchanger forward path 135 Heat exchanger return path 137 Connection pipe 141 Heat exchanger 143 Intake pump 145 Intake port 147 Exhaust port 151 Second on-off valve 153 Second heat exchanger outbound path 155 Second heat exchanger return path 161 Additional heat exchanger 163 Intake pump 165 Intake port 167 Exhaust port 171 First 1 well 172 second well 175 water pump 176 water inlet 177 water pipe 178 drain pipe 179 drain outlet 181 heat pump 183 water tank 185 ground water tank 191 first heat exchanger 192 second heat exchanger 195 first pump 196 Second pump 197 Third pump 198 Fourth pump

Claims (7)

An ice making device having an ice making machine body provided with a heat source device, an ice storage and a radiator of the heat source device,
It has a heat pump that uses the heat of groundwater as a heat source,
A well for storing the groundwater as a heat source of the heat pump;
The well is provided with a heat exchanger that can be connected in series with the radiator, and that can circulate the refrigerant of the heat source device together with the radiator,
An ice making device characterized in that ice raw water supplied to the ice making machine main body can be cooled to about 10 ° C. by the heat pump.   The ice making apparatus according to claim 1, further comprising a groundwater tank and a water supply tank, wherein the raw water stored in the water supply tank is cooled to about 10 ° C by the heat pump using groundwater stored in the groundwater tank as heat source water. apparatus. Ice making device described underground water accumulated before heard door to claim 2, characterized in that it comprises a water pump to be sent to the ground water tank.   It has two wells for storing groundwater, and has a water supply pump for sending the groundwater stored in one of the two wells to the groundwater tank, and also drains the groundwater tanks from the two wells. A drainage pipe for discharging to the other well in the inside, in series with the radiator, and a heat exchanger that circulates the refrigerant of the heat source device together with the radiator is provided in at least one of the two wells. The ice making device according to claim 2, wherein Two wells for storing groundwater are provided, cold heat is supplied to the heat pump by the water heat of groundwater stored in one well, and the groundwater supplied with cold heat is returned to the other well, and the one well A heat exchanger through which the refrigerant returning from the radiator to the ice maker body passes, and a heat exchanger through which the refrigerant sent from the ice maker body to the radiator passes through the other well. The ice making device according to any one of claims 1 to 3, characterized in that: When performing ice making using an ice making device having an ice making machine body provided with a heat source device, and a radiator and ice storage of the heat source device,
A heat pump using the heat of groundwater as a heat source, a well provided with the groundwater as a heat source of the heat pump, a heat exchanger provided in the well, and the heat exchanger and the radiator as a series of the heat source device Circulating a refrigerant through the heat exchanger and the radiator,
Method for producing ice and supplying the ice making machine main body raw water ice supplied to the ice making machine main body after cold advance around 10 ° C. by the heat pump. Wherein the said heat source apparatus of the ice making machine main body, a manufacturing method of ice according to claim 6, characterized in that for freezing the raw water as a heat pump system that also utilizes a groundwater heat combined with atmospheric heat.

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