A heat exchanger has at least one inlet and outlet to permit circulation of refrigerant therethrough. Each heat exchanger includes a plurality of thin sections of material arranged between a pair of thin flat outer plates. Each of the thin sections of material is comprised of parallel flow paths, allowing for the refrigerant to flow through the inlet, then from one section to the next, and finally out the outlet. The arrangement of the sections of parallel flow paths allows for the refrigerant to come into contact with the majority of the inside wall of the outer plates, allowing for maximum heat exchange. In use for cooling liquids, the heat exchangers are arranged within a frame and brought into contact with the liquid to be cooled. When the heat exchangers are used to cool liquid sufficiently to produce ice crystals, a rotating scraping device sweeps across the surface of the heat exchanger, removing any ice crystals that have formed.

A heat exchanger has at least one inlet and outlet to permit circulation of refrigerant therethrough. Each heat exchanger includes a plurality of thin sections of material arranged between a pair of thin flat outer plates. Each of the thin sections of material is comprised of parallel flow paths, allowing for the refrigerant to flow through the inlet, then from one section to the next, and finally out the outlet. The arrangement of the sections of parallel flow paths allows for the refrigerant to come into contact with the majority of the inside wall of the outer plates, allowing for maximum heat exchange. In use for cooling liquids, the heat exchangers are arranged within a frame and brought into contact with the liquid to be cooled. When the heat exchangers are used to cool liquid sufficiently to produce ice crystals, a rotating scraping device sweeps across the surface of the heat exchanger, removing any ice crystals that have formed.

A commercial ice maker purges water from a sump via a passive drain valve instead of an active drain pump. The ice maker uses a large freeze plate, but still can accommodate the passive drain valve within a standard enclosure footprint. A bottom wall of the ice maker has a drain passaging groove formed in an upper surface. The drain valve is supported above the bottom wall and drain tube is at least partially received in the drain passaging groove. The drain valve can include a valve body that has a valve seat and a movable valve member that opens and closes a valve passage through the valve seat. The valve member radially overlaps the valve seat along a longitudinal axis when the valve member is closed.

The present invention relates to a snow ice maker, comprising a coupling shaft (40) assembly wherein refrigerant injection capillary tubes (20) and a refrigerant gas outlet tube (30) are arranged in a main passage (41), and the passage (41) is closed at a welding part (43) as a result of the capillary tubes (20) and a refrigerant gas inlet tube being simultaneously provided. The refrigerant injection capillary tubes (20) comprise ends (22) arranged in proximity to an injecting position inside a cooling drum, and the refrigerant injection capillary tubes (20) are arranged by collecting the refrigerant injection capillary tubes (20) in the passage (41) of the coupling shaft (40); extending the refrigerant injection capillary tubes (20) to the outside of the cooling drum; combining the refrigerant injection capillary tubes (20) at a multiple connection part (21); and directly connecting the refrigerant injection capillary tubes (20) to a refrigerant supply tube (52) of a refrigerant compressor. The refrigerant gas outlet tube (30) is connected to a multiple inlet tube (33) in an ice-making drum, and the refrigerant gas outlet tube (30) is arranged by directly connecting the refrigerant gas outlet tube (30) through the main passage in the coupling shaft (40), from a connection part (31) outside the cooling drum to a gas inlet tube (54) of a condenser. According to the present invention, clean snow ice can be used because supplied water for ice making is frozen in an ice-making drum, edible powder ice can be obtained by cutting the ice layers of the ice-making drum with a cutter, and water for ice making is sterilized by ultraviolet rays. In addition, the ice-making drum can be cleaned and sterilized by heated water and vapor so that ingredients including milk, sugar and juice can be ice-made and variously used in a summer environment of high temperature and humidity.

A device for processing ice for ice beer comprising a body, a pair of installation tables, an ice-making unit having a cylindrical shape, and rotatable shafts being formed on the ice-making unit. The outer surface of the ice-making unit is maintained at a sub-freezing temperature. There is a driving unit configured to rotate the shafts, a storage unit positioned below the ice-making unit, and a storage space concavely formed in an upper surface of the storage unit. A supply unit installed on the body to store and drop beer. A pulverizing unit is plate shaped and an end thereof is adjacent to the ice-making unit. Beer is supplied from the supply unit to the storage space. The ice-making unit is rotated to contact the beer and form a beer ice layer thereon. The pulverizing unit separates the beer ice layer from the ice-making unit.

A device for processing ice for ice beer comprising a body, a pair of installation tables, an ice-making unit having a cylindrical shape, and rotatable shafts being formed on the ice-making unit. The outer surface of the ice-making unit is maintained at a sub-freezing temperature. There is a driving unit configured to rotate the shafts, a storage unit positioned below the ice-making unit, and a storage space concavely formed in an upper surface of the storage unit. A supply unit installed on the body to store and drop beer. A pulverizing unit is plate shaped and an end thereof is adjacent to the ice-making unit. Beer is supplied from the supply unit to the storage space. The ice-making unit is rotated to contact the beer and form a beer ice layer thereon. The pulverizing unit separates the beer ice layer from the ice-making unit.

A commercial ice maker purges water from a sump via a passive drain valve instead of an active drain pump. The ice maker uses a large freeze plate, but still can accommodate the passive drain valve within a standard enclosure footprint. A bottom wall of the ice maker has a drain passaging groove formed in an upper surface. The drain valve is supported above the bottom wall and drain tube is at least partially received in the drain passaging groove. The drain valve can include a valve body that has a valve seat and a movable valve member that opens and closes a valve passage through the valve seat. The valve member radially overlaps the valve seat along a longitudinal axis when the valve member is closed.

A commercial ice maker purges water from a sump via a passive drain valve instead of an active drain pump. The ice maker uses a large freeze plate, but still can accommodate the passive drain valve within a standard enclosure footprint. A bottom wall of the ice maker has a drain passaging groove formed in an upper surface. The drain valve is supported above the bottom wall and drain tube is at least partially received in the drain passaging groove. The drain valve can include a valve body that has a valve seat and a movable valve member that opens and closes a valve passage through the valve seat. The valve member radially overlaps the valve seat along a longitudinal axis when the valve member is closed.

A device for making fine ice with salinity comprises: a water supply unit configured to supply a salt-containing fluid; an air supply unit including a spray nozzle configured to spray the fluid supplied from the water supply unit; and an ice-making unit configured to refrigerate the fluid sprayed from the spray nozzle and make salt-containing fine ice, wherein the ice-making unit includes: an ice-making chamber whose inner wall to be in contact with the fluid sprayed from the spray nozzle is configured to be refrigerated; and a scraper configured to scrape ice made on the inner wall of the ice-making chamber. By this device, fine ice with salinity can be efficiently generated.

A device for making fine ice with salinity comprises: a water supply unit configured to supply a salt-containing fluid; an air supply unit including a spray nozzle configured to spray the fluid supplied from the water supply unit; and an ice-making unit configured to refrigerate the fluid sprayed from the spray nozzle and make salt-containing fine ice, wherein the ice-making unit includes: an ice-making chamber whose inner wall to be in contact with the fluid sprayed from the spray nozzle is configured to be refrigerated; and a scraper configured to scrape ice made on the inner wall of the ice-making chamber. By this device, fine ice with salinity can be efficiently generated.