WO2017086462A1 - Ice making device, moving body, flake ice production device, and flake ice production method - Google Patents
Ice making device, moving body, flake ice production device, and flake ice production method Download PDFInfo
- Publication number
- WO2017086462A1 WO2017086462A1 PCT/JP2016/084320 JP2016084320W WO2017086462A1 WO 2017086462 A1 WO2017086462 A1 WO 2017086462A1 JP 2016084320 W JP2016084320 W JP 2016084320W WO 2017086462 A1 WO2017086462 A1 WO 2017086462A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ice
- ice making
- brine
- flake
- inner cylinder
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 91
- 239000012267 brine Substances 0.000 claims abstract description 135
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 135
- 238000007710 freezing Methods 0.000 claims abstract description 64
- 230000008014 freezing Effects 0.000 claims abstract description 64
- 238000001816 cooling Methods 0.000 claims abstract description 61
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000003507 refrigerant Substances 0.000 claims description 85
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 90
- 150000003839 salts Chemical class 0.000 description 64
- 239000007864 aqueous solution Substances 0.000 description 43
- 239000003949 liquefied natural gas Substances 0.000 description 41
- 239000002002 slurry Substances 0.000 description 38
- 239000007788 liquid Substances 0.000 description 26
- 239000007787 solid Substances 0.000 description 26
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 21
- 238000002844 melting Methods 0.000 description 20
- 230000008018 melting Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 230000008859 change Effects 0.000 description 15
- 229910052802 copper Inorganic materials 0.000 description 15
- 239000010949 copper Substances 0.000 description 15
- 235000014102 seafood Nutrition 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 239000013535 sea water Substances 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000013505 freshwater Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 238000010309 melting process Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- -1 etc.) Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 235000020185 raw untreated milk Nutrition 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- 229910000809 Alumel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000896 Manganin Inorganic materials 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- 229910000936 Naval brass Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 229910001179 chromel Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical compound [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/02—Producing natural ice, i.e. without refrigeration
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/02—Preserving by means of inorganic salts
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/02—Preserving by means of inorganic salts
- A23B4/027—Preserving by means of inorganic salts by inorganic salts other than kitchen salt, or mixtures thereof with organic compounds, e.g. biochemical compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
- A23B4/08—Freezing; Subsequent thawing; Cooling with addition of chemicals or treatment with chemicals before or during cooling, e.g. in the form of an ice coating or frozen block
- A23B4/09—Freezing; Subsequent thawing; Cooling with addition of chemicals or treatment with chemicals before or during cooling, e.g. in the form of an ice coating or frozen block with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/37—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
- A23L3/375—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
- F25C1/14—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes
- F25C1/145—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the inner walls of cooled bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/12—Ice-shaving machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/20—Distributing ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/20—Distributing ice
- F25C5/22—Distributing ice particularly adapted for household refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
- F25D3/04—Stationary cabinets
- F25D3/045—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2301/00—Special arrangements or features for producing ice
- F25C2301/002—Producing ice slurries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/963—Off-grid food refrigeration
Definitions
- the present invention relates to an ice making device, a moving body, a flake ice production device, and a flake ice production method.
- Patent Document 1 in a salt-containing water ice making method in which salt-containing ice obtained by freezing salt-containing water having a solute concentration of approximately 0.5 to 2.5% is formed into a slurry, filtration is performed. Sterilized raw water, such as seawater, is adjusted to a salt content to obtain a salt-containing water having a solute concentration of about 1.0 to 1.5%, and the salt-containing water is rapidly cooled to cope with the solute concentration- A method is disclosed for producing slurry-like salt-containing ice having a freezing point temperature of 5 to -1 ° C.
- the present invention has been made in view of such a situation, and an object of the present invention is to provide a technique for generating ice with higher efficiency and higher cooling ability.
- the thermal conductivity of the ice making surface at 20 ° C. can be 70 W / mK or more.
- the cooling unit further includes a refrigerant supply unit that supplies a predetermined refrigerant to cool the ice making surface.
- a refrigerant supply unit that supplies a predetermined refrigerant to cool the ice making surface.
- the brine supply unit The brine can be deposited by spraying onto the ice making surface.
- the brine supply unit The brine can be adhered to the ice making surface by naturally flowing down.
- the thermal conductivity at 20 ° C. of the ice making surface can be configured to be 70 W / mK or more.
- the refrigerant can be LNG.
- the ice making part Further comprising a liner covering the ice making surface,
- the liner can be replaceable.
- the flake ice manufacturing apparatus of one aspect of the present invention includes the ice making unit, the brine supply unit, and the recovery unit,
- the ice making part is A drum including an inner cylinder having the ice making surface, an outer cylinder surrounding the inner cylinder, a clearance formed between the inner cylinder and the outer cylinder, and a refrigerant that supplies refrigerant to the clearance And further comprising a supply unit,
- the brine supply unit A rotation unit that rotates around a central axis of the drum, and further includes an injection unit that injects the brine toward the ice making surface of the inner cylinder;
- the collection unit The brine jetted from the jetting unit is further attached to the inner surface of the inner cylinder cooled by the refrigerant supplied to the clearance, and further comprises a stripping unit for stripping off the ice generated as a result,
- the above equation (1) is established.
- the thermal conductivity of the ice making surface at 20 ° C. can be 70 W / mK or more.
- the ice making speed is Y and the temperature of the ice making surface is x3, it can be designed so that the above formula (3) is established.
- the brine supply unit The brine can be adhered to the ice making surface by naturally flowing down.
- the refrigerant can be LNG.
- the ice making part Further comprising a liner covering the ice making surface,
- the liner can be replaceable.
- the flake ice manufacturing apparatus of one embodiment of the present invention can be mounted on a moving body.
- the ice produced by the ice making device of the present invention is liquid ice containing an aqueous solution containing a solute that satisfies the following conditions (a) and (b).
- “Flake ice” refers to ice processed into flakes.
- the temperature at the completion of melting is less than 0 ° C.
- the change rate of the solute concentration of the aqueous solution generated from the ice during the melting process is within 30%.
- the ice having a reduced freezing point as described above continues to be stable at a temperature below the freezing point of fresh water when melted, so that the state where cold energy is stored continues. Therefore, the cooling ability of the object to be cooled should be higher than that of ice made of fresh water.
- the present inventors have found that the ice produced by the conventional technique does not have sufficient ability to cool the object to be cooled, such as the temperature of the ice rising rapidly with time.
- the present inventors examined the reason, and even if ice was produced from an aqueous solution containing a solute such as salt in the conventional technique, in practice, ice containing no solute was first produced before the aqueous solution was frozen. As a result, a mixture of ice and solute containing no solute is produced, or only a small amount of ice having a reduced freezing point is produced, so that ice with high cooling capacity is not produced. I found out.
- the present inventors have succeeded in inventing an ice making device capable of producing liquid ice containing an aqueous solution having a reduced freezing point by a predetermined method (details will be described later).
- the ice produced by such an ice making device of the present invention satisfies the above conditions (a) and (b).
- the above conditions (a) and (b) will be described.
- the temperature at the completion of melting is not particularly limited as long as it is less than 0 ° C., and can be appropriately changed by adjusting the kind and concentration of the solute.
- the temperature at the completion of melting is preferably lower in terms of higher cooling ability, and specifically, -1 ° C or lower (-2 ° C or lower, -3 ° C or lower, -4 ° C or lower, -5 ° C or lower, -6 ° C or lower, -7 ° C or lower, -8 ° C or lower, -9 ° C or lower, -10 ° C or lower, -11 ° C or lower, -12 ° C or lower, -13 ° C or lower, -14 ° C or lower, -15 Or less, ⁇ 16 ° C.
- the temperature at the completion of thawing is not too high.
- -21 ° C or higher (-20 ° C or higher, -19 ° C or higher, -18 ° C or higher, -17 ° C or higher, -16 ° C or higher, -15 ° C or higher, -14 ° C or higher, -13 ° C or higher,- 12 ° C or higher, -11 ° C or higher, -10 ° C or higher, -9 ° C or higher, -8 ° C or higher, -7 ° C or higher, -6 ° C or higher, -5 ° C or higher, -4 ° C or higher, -3 ° C or higher,- 2 ° C or higher, -1 ° C or higher, -0.5 ° C or higher, etc.).
- the ice produced by the ice making apparatus of the present invention is the rate of change in the solute concentration of the aqueous solution generated from the ice during the melting process (hereinafter referred to as the “rate of change in solute concentration” in this specification). Is) within 30%. Even with the conventional technique, ice having a slightly reduced freezing point may be generated, but most of them are a mixture of water-free ice and solute crystals, so that the cooling capacity is not sufficient.
- the ice produced by the ice making device of the present invention is composed of liquid ice containing an aqueous solution containing a solute, and therefore has a feature that there is little change in the elution rate of the solute during the melting process. Specifically, the change rate of the solute concentration of the aqueous solution generated from ice during the melting process is 30%.
- the “rate of change in the solute concentration of an aqueous solution generated from ice during the melting process” means the ratio of the concentration of the aqueous solution at the completion of melting to the solute concentration in the aqueous solution generated at an arbitrary point in the melting process.
- the “solute concentration” means the concentration of the mass of the solute in the aqueous solution.
- the rate of change of the solute concentration in the ice produced by the ice making apparatus of the present invention is not particularly limited as long as it is within 30%, but the smaller the rate of change, the higher the purity of the ice of the aqueous solution with a reduced freezing point, that is, This means that the cooling capacity is high. From this viewpoint, the change rate of solute concentration is within 25% (within 24%, within 23%, within 22%, within 21%, within 20%, within 19%, within 18%, within 17%, within 16%.
- the change rate of the solute concentration is 0.1% or more (0.5% or more, 1% or more, 2% or more, 3% or more, 4% or more, 5% or more, 6% or more, 7% or more, 8 % Or more, 9% or more, 10% or more, 11% or more, 12% or more, 13% or more, 14% or more, 15% or more, 16% or more, 17% or more, 18% or more, 19% or more, 20% or more Etc.).
- solute The type of solute contained in the ice produced by the ice making apparatus of the present invention is not particularly limited as long as it is a solute when water is used as a solvent, and is appropriately selected depending on the desired freezing point, the intended use of the ice to be used, etc. can do.
- the solute include solid solutes and liquid solutes, and typical solid solutes include salts (inorganic salts, organic salts, etc.). Particularly, among salts, sodium chloride (NaCl) is preferable because it does not excessively lower the temperature of the freezing point and is suitable for cooling fresh animals and plants or a part thereof.
- salt is contained in seawater, it is also preferable in terms of easy procurement.
- ethylene glycol etc. are mentioned as a liquid solute.
- a solute may be contained individually by 1 type and may be contained 2 or more types.
- the concentration of the solute contained in the ice produced by the ice making apparatus of the present invention is not particularly limited, and can be appropriately selected according to the kind of solute, the desired freezing point, the use of the ice to be used, and the like.
- concentration of the sodium chloride is 0.5% (w / v) or more (1% (w / v) in that the freezing point of the aqueous solution can be further lowered to obtain a high cooling capacity.
- the ice produced by the ice making apparatus of the present invention is used for cooling fresh animals or plants or a part thereof, it is preferable not to excessively reduce the temperature of the freezing point.
- 23% (w / v) or less (20% (w / v) or less, 19% (w / v) or less, 18% (w / v) or less, 17% (w / v) or less, 16% (w / v) or less, 15 % (W / v) or less, 14% (w / v) or less, 13% (w / v) or less, 12% (w / v) or less, 11% (w / v) or less, 10% (w / v ), 9% (w / v) or less, 8% (w / v) or less, 7% (w / v) or less, 6% (w / v) or less, 5% (w / v) or less,
- the ice produced by the ice making apparatus of the present invention is excellent in cooling ability, it is suitable for use as a refrigerant for cooling an object to be cooled.
- the low-temperature refrigerant for cooling the object to be cooled include organic solvents used as an antifreeze liquid such as ethanol in addition to ice, but ice has higher thermal conductivity and higher specific heat than these antifreeze liquids. For this reason, ice having a low freezing point by dissolving a solute such as ice produced by the ice making apparatus of the present invention is superior in cooling ability to other refrigerants of less than 0 ° C. such as antifreeze. Useful.
- the ice produced by the ice making apparatus of the present invention may or may not contain components other than the above solute.
- ice refers to a frozen liquid containing an aqueous solution.
- the ice produced by the ice making device of the present invention continues to be stable at a temperature below the freezing point of fresh water, that is, it can be kept in a state where it is not separated for a long time. Therefore, for example, as described later, when the liquid constituting the ice produced by the ice making device of the present invention is a liquid containing oil in addition to the aqueous solution containing the solute, the oil is uniform. The state lasts for a long time, that is, the state that does not separate can be maintained for a long time.
- the liquid constituting the ice produced by the ice making device of the present invention may be a liquid containing oil in addition to the aqueous solution containing the solute.
- liquids include raw milk and industrial waste (such as waste milk) containing water and oil.
- waste milk industrial waste
- the liquid is raw milk, it is preferable in terms of improving the functionality when eating the ice.
- the reason why the functionality is improved is that oil (fat) contained in raw milk is confined in ice.
- the ratio of water to oil in the liquid is not particularly limited, and is, for example, 1:99 to 99: 1 (10:90). To 90:10, 20:80 to 80:20, 30:80 to 80:30, 40 to 60:40 to 60, etc.).
- the ice produced by the ice making apparatus of the present invention may be an aqueous ice containing two or more solutes having different freezing point depression degrees.
- the ice produced by the ice making apparatus of the present invention may be a mixture of ice of an aqueous solution containing one solute and ice of an aqueous solution containing the other solute.
- ice of an aqueous solution containing sodium chloride as a solute having a different freezing point depression degree from that of ethylene glycol to ice of an aqueous solution containing ethylene glycol as a solute, melting of the ice of the aqueous solution containing ethylene glycol can be delayed. it can.
- generated by the ice making apparatus of this invention may be the ice of the aqueous solution which melt
- the melting point of the ice in the salt solution can be lowered by using a solute (ethylene glycol, calcium chloride, etc.) that can lower the melting point further than the salt.
- a temperature around -30 ° C that cannot be achieved with ice alone can be achieved.
- the ratio of two or more solutes having different freezing point depression degrees can be appropriately changed according to the purpose.
- the ice produced by the ice making device of the present invention can be used as a refrigerant for cooling the object to be cooled.
- the ice produced by the ice making device of the present invention is excellent in cooling ability, and thus is suitable as a refrigerant for cooling an object to be cooled.
- the refrigerant for cooling the object to be cooled is hereinafter referred to as “ice slurry”. Call it.
- the ice slurry is a mixture of ice produced by the ice making device of the present invention and a liquid containing an aqueous solution.
- the ice slurry containing the ice produced by the ice making device of the present invention may contain other components of the above ice, for example, a mixture of ice and water by containing water in addition to the above ice. May be.
- the solute concentration in ice and the solute concentration in water are preferably close. The reason is as follows.
- the solute concentration of ice When the solute concentration of ice is higher than the solute concentration of water, the temperature of the ice is lower than the saturation freezing point of water, so that water freezes immediately after mixing water with a low solute concentration.
- the solute concentration of ice when the solute concentration of ice is lower than the solute concentration of water, the saturated freeze point of water is lower than the saturated freeze point of ice, so the ice melts and the temperature of the ice slurry consisting of a mixture of ice and water decreases.
- the solute concentrations of the ice and water to be mixed are approximately the same as described above.
- the water may be one obtained by melting the ice, or one prepared separately, but one obtained by melting the ice. It is preferable that
- the ratio of the solute concentration in ice to the solute concentration in water is 75. : 25 to 20:80 is more preferable, 70:30 to 30:70 is further preferable, 60:40 to 40:60 is still more preferable, and 55:45 to 45:55 is used. Even more preferably, it is particularly preferably 52:48 to 48:52, and most preferably 50:50.
- the ratio of the solute concentration in ice to the solute concentration in water is preferably within the above range.
- the water that is the raw material of ice produced by the ice making device of the present invention is not particularly limited, but when using salt as a solute, it is ice of seawater, water obtained by adding salt to seawater, or seawater dilution water. It is preferable. Seawater, water obtained by adding salt to seawater, or seawater-diluted water can be easily procured, thereby reducing costs.
- the ice slurry containing ice produced by the ice making device of the present invention may further contain a solid having a higher thermal conductivity than the ice produced by the above ice making device of the present invention.
- a solid having a higher thermal conductivity than the ice produced by the above ice making device of the present invention.
- the ice produced by the ice making apparatus of the present invention has a high cooling capacity as described above, it is possible to cool for a long time while obtaining a cooling capacity for a short time by a solid having high thermal conductivity.
- solids having higher thermal conductivity than ice produced by the ice making apparatus of the present invention include metals (aluminum, silver, copper, gold, duralumin, antimony, cadmium, zinc, tin, bismuth, tungsten, titanium, iron , Lead, nickel, platinum, magnesium, molybdenum, zirconium, beryllium, indium, niobium, chromium, cobalt, iridium, palladium), alloy (steel (carbon steel, chromium steel, nickel steel, chromium nickel steel, silicon steel, tungsten steel) , Manganese steel, etc.), nickel-chromium alloy, aluminum bronze, gunmetal, brass, manganin, silver, constantan, solder, al
- the solid having higher thermal conductivity than ice produced by the ice making apparatus of the present invention has a thermal conductivity of 2.3 W / m K or more (3 W / m K or more, 5 W / m K or more, 8 W / m K.
- the ice slurry containing ice produced by the ice making apparatus of the present invention contains a solid having a higher thermal conductivity than the above-described ice of the present invention, as described above, even if it contains many solids, it is cooled for a long time.
- the mass of ice produced by the ice making device of the present invention contained in the mass / ice slurry of solids having a higher thermal conductivity than the ice produced by the ice making device of the present invention is 1 / 100,000 or more (1/50000 or more, 1/10000 or more, 1/5000 or more, 1/1000 or more, 1/500 or more, 1 / 100 or more, 1/50 or more, 1/10 or more, 1/5 or more, 1/4 or more, 1/3 or more, 1/2 or more, and the like.
- the solid contained in the ice slurry containing ice produced by the ice making apparatus of the present invention may have any shape, but is preferably particulate. Further, the solid may be contained in a form contained in the ice produced by the ice making apparatus of the present invention, and may be contained in a form contained outside the ice. Since it is easier to directly contact the object to be cooled if it is included in the form of being included outside, the cooling ability is increased. For this reason, it is preferable to be included in a form included outside the ice.
- the ice slurry containing ice produced by the ice making device of the present invention contains the solid, it may be mixed with the solid after producing ice by the ice making device of the present invention described later, You may produce
- FIG. 1 is an image diagram including a partial cross-sectional perspective view showing an outline of a flake ice manufacturing apparatus 10 according to an embodiment of the ice making apparatus of the present invention.
- the wall surface is, for example, the wall surface of the inner wall 22 of a cylindrical structure such as the drum 11 described later, but is not particularly limited as long as it can be maintained at a temperature below the freezing point of the aqueous solution.
- the temperature of the wall surface is not particularly limited as long as it is maintained at a temperature lower than or equal to the freezing point of the aqueous solution.
- the wall surface temperature is higher than the freezing point of the aqueous solution in that ice having high purity of ice satisfying the above conditions (a) and (b) can be produced.
- the injection method is not particularly limited, for example, it is possible to inject by injecting from an injection means having an injection hole 13a like an injection unit 13 described later.
- the water pressure at the time of injection is, for example, 0.001 MPa or more (0.002 MPa or more, 0.005 MPa or more, 0.01 MPa or more, 0.05 MPa or more, 0.1 MPa or more, 0.2 MPa or more, etc.). 1 MPa or less (0.8 MPa or less, 0.7 MPa or less, 0.6 MPa or less, 0.5 MPa or less, 0.3 MPa or less, 0.1 MPa or less, 0.05 MPa or less, 0.01 MPa or less, etc.) There may be.
- a rotating means such as a rotatable rotating shaft 12 may be provided on the center axis of the saddle drum 11 to be described later, and continuous injection such as injection while rotating may be performed.
- the flake ice manufacturing apparatus 10 has a step of recovering the ice generated on the wall surface after the above-described ice generation step.
- the method of collecting is not particularly limited, and for example, the ice on the wall surface may be scraped or peeled off by means such as a blade 15 described later, and the dropped ice may be collected.
- the actual melting completion temperature can be adjusted by adjusting the amount of ice making heat remaining in the ice.
- the ice making heat can be adjusted by adjusting the holding time of the ice on the wall surface in the ice collecting step.
- the flake ice manufacturing apparatus 10 includes a drum 11, a rotary shaft 12, an injection unit 13, a stripping unit 14, a blade 15, a flake ice discharge port 16, and an upper bearing member 17. , A heat protection cover 19, a geared motor 20, a rotary joint 21, a refrigerant clearance 24, a bush 28, a refrigerant supply unit 29, and a rotation control unit 27.
- the drum 11 includes an inner cylinder 22, an outer cylinder 23 surrounding the inner cylinder 22, and a refrigerant clearance 24 formed between the inner cylinder 22 and the outer cylinder 23.
- the outer peripheral surface of the drum 11 is covered with a cylindrical heat-resistant protective cover 19.
- the inner cylinder 22 has a wall surface, and when the wall surface is cooled, the brine attached to the wall surface is frozen and ice is generated.
- rate can be raised by making the member which comprises the inner cylinder 22 into a member with high heat conductivity.
- the ice making speed can be reduced by making the member constituting the inner cylinder 22 a member having low thermal conductivity.
- a member having a higher thermal conductivity than stainless steel or iron is employed as a member constituting the wall surface of the inner cylinder 22, and more specifically, the thermal conductivity at 20 ° C.
- the flake ice manufacturing apparatus 10 can produce a lot of ice in a shorter time than when stainless steel or iron is adopted as a member constituting the wall surface of the inner cylinder 22.
- the wall surface of the inner cylinder 22 has a high thermal conductivity. Since the production speed of ice is increased by using the members, it is not necessary to widen the wall surface of the inner cylinder 22, and as a result, it is possible to produce ice in a relatively narrow space.
- the member constituting the wall surface of the inner cylinder 22 is preferably a member having a high thermal conductivity, more specifically, a member having a thermal conductivity at 20 ° C. of 100 W / mK or more is more preferable.
- a member having a thermal conductivity at 20 ° C. of 150 W / mK or more is still more preferable, a member having a thermal conductivity at 20 ° C. of 200 W / mK or more is more preferable, and a member having a thermal conductivity at 20 ° C. of 250 W / mK or more is further preferable.
- a member having a thermal conductivity of 300 W / mK or more at 20 ° C. is particularly preferable.
- the upper limit of the thermal conductivity is not particularly limited.
- the thermal conductivity at 20 ° C. is 1000 W / mK or less (900 W / mK or less, 800 W / mK or less, 700 W / mK or less, 600 W / mK or less, 500 W / mK or less, 400 W / mK or less).
- Specific examples of the members constituting the wall surface of the inner cylinder 22 include zinc, aluminum, geralumin, gold, silver, tungsten, copper, aluminum bronze, seven-three brass, naval brass, nickel (99.9%), molybdenum, palladium. , Silicon and the like.
- the flake ice production apparatus of the present invention is suitable for production in a relatively narrow space, for example, a limited space such as the inside of a transportation device (for example, a vehicle (such as a truck) or a ship) It is suitable for manufacturing in places where there is only one.
- a transportation device for example, a vehicle (such as a truck) or a ship
- the relationship between the member which comprises the wall surface of the inner cylinder 22, and heat conductivity is later mentioned with reference to the specific example of the member shown in FIG.
- the ice making speed is adjusted by adjusting the area of the portion of the wall surface of the inner cylinder 22 where the brine can be attached.
- the material of the outer cylinder 23 is not particularly limited. In this embodiment, steel is employed. Refrigerant is supplied to the refrigerant clearance 24 from the refrigerant supply unit 29 via the refrigerant pipe 35. Thereby, the wall surface of the inner cylinder 22 is cooled.
- the rotary shaft 12 is arranged on the central axis of the drum 11 and rotates around the material axis with the central shaft as an axis, using a geared motor 20 installed above the upper bearing member 17 as a power source.
- the rotational speed of the geared motor 20 is controlled by a rotation control unit 27 described later.
- a rotary joint 21 is attached to the top of the rotating shaft 12.
- Rotary joint 21 In addition, the upper part of the rotating shaft 12 is formed with a pothole 12a extending in the material axis direction and communicating with each pipe 13 (see FIG. 3).
- the injection unit 13 is composed of a plurality of pipes having injection holes 13 a for injecting brine toward the wall surface of the inner cylinder 22 at the tip, and rotates together with the rotating shaft 12.
- the brine injected from the injection hole 13a adheres to the wall surface of the inner cylinder 22 cooled by the refrigerant, and freezes rapidly without giving a time for separation.
- the plurality of pipes constituting the injection unit 13 extend radially from the rotary shaft 12 in the radial direction of the drum 11.
- the installation height of each pipe is not particularly limited, but in this embodiment, the installation height is set at an upper position of the inner cylinder 22 of the drum 11. Note that a spray nozzle or the like may be employed instead of the pipe.
- the flake ice manufacturing apparatus 10 can also be made to adhere by making a brine flow naturally on the wall surface of the inner cylinder 22, without employ
- the volume of the brine adhering to the wall surface of the inner cylinder 22 is larger than the case of adhering to the wall surface of the inner cylinder 22 by injecting brine.
- the ice generated by the natural flow of the brine is not easily affected by the temperature in the air inside the drum 11 which is higher than the temperature of the wall surface of the inner cylinder 22, and therefore melts more than the ice generated by the injection of the brine. It has the advantageous property of being difficult.
- the stripping unit 14 is composed of a plurality of arms on which the blade 15 that strips off the ice generated on the wall surface of the inner cylinder 22 is attached to the tip.
- the stripping part 14 extends in the radial direction of the drum 11 and rotates together with the rotating shaft 12.
- the plurality of arms constituting the stripping portion 14 are mounted so as to be symmetric with respect to the rotation shaft 12.
- the number of arms is not particularly limited, but in the present embodiment, the number of arms is two.
- the size and material of the blade 15 attached to the tip of each arm are not particularly limited as long as the ice generated on the wall surface of the inner cylinder 22 can be peeled off. For example, the tip of the blade may scrape or scrape off the ice.
- the blade 15 in the present embodiment is made of a stainless steel plate having a length substantially equal to the entire length (total height) of the inner cylinder 22, and a plurality of saw teeth 15 a are formed on the end surface facing the inner cylinder 22. .
- a flake ice falls from the flake ice discharge port 16.
- the flake ice that has fallen from the flake ice discharge port 16 is stored in a flake ice storage tank 34 (see FIG. 3) disposed immediately below the flake ice production apparatus 10.
- the upper bearing member 17 has a shape in which the pan is inverted, and seals the upper surface of the drum 11.
- a bush 24 that supports the rotating shaft 12 is fitted in the center of the upper bearing member 17.
- the rotating shaft 12 is supported only by the upper bearing member 17, and the lower end portion of the rotating shaft 12 is not pivotally supported. That is, since there is no obstacle below the drum 11 when the flake ice peeled off by the blade 15 falls, the lower surface of the drum 11 serves as a flake ice discharge port 16 for discharging the flake ice.
- the refrigerant supply unit 29 supplies a refrigerant for cooling the wall surface of the inner cylinder 22 to the refrigerant clearance 24 via the refrigerant pipe 35.
- the refrigerant supplied by the refrigerant supply unit 29 is not particularly limited as long as it cools the wall surface of the inner cylinder 22.
- LNG Liquid Natural Gas / liquefied natural gas
- the refrigerant can be employed as the refrigerant.
- imported LNG is stored in the LNG storage tank in a liquid state at -160 ° C.
- the LNG at -160 ° C is vaporized until it reaches room temperature, adjusted for calorific value, and given odor. And supplied for city gas or GT power generation.
- the heat of exhaust cooling until LNG at ⁇ 160 ° C. reaches room temperature the production of liquid oxygen and liquid nitrogen, freezing warehouses, cold power generation, seawater as the heat source
- the technique used for the vaporization of LNG (ORV type) is used.
- the exhaust cooling heat of LNG When the exhaust cooling heat of LNG is used for the above-described application, it has the following merits as compared with the conventional cooling method by electric power or engine drive. That is, (1) less power is required, (2) the cold energy of LNG that is not being used can be used effectively, (3) a large generator is not required, and (4) pollution factors are low. (5) It has the merit that cost is reduced.
- the exhaust cooling heat of LNG there were the following disadvantages. In other words, the use of LNG exhaust heat is normally limited to continuous use at locations around the LNG base. This is because LNG has a risk of combustion during transportation.
- the above-described disadvantages are eliminated. That is, by using LNG as a refrigerant in the flake ice production apparatus 10, ultra-low temperature flake ice can be produced. For this reason, if the manufactured flake ice is transported to a remote place, the waste heat of LNG can be used batchwise without transporting the LNG itself to the remote place.
- the flake ice manufacturing apparatus 10 does not need to be fixed at a specific place, and can be mounted on a moving body such as a vehicle, a ship, an aircraft, etc., and thus has mobility. Furthermore, since there is an intermediate refrigerant called flake ice, there is no danger of direct heat exchange between the LNG and the object to be cooled.
- the flake ice manufacturing apparatus 10 can not only supply cold heat as an alternative to a conventional refrigerator, but also can improve energy efficiency by utilizing the exhausted cold heat of LNG. That is, it is possible to construct a cogeneration system.
- the flake ice manufacturing apparatus 10 is designed so that the following equation (3) is established when the ice making speed is Y and the temperature of the refrigerant supplied to the refrigerant clearance 24 is x3.
- Y f (x3) (3) That is, the flake ice manufacturing apparatus 10 is designed such that the ice making speed changes according to the temperature of the refrigerant supplied to the refrigerant clearance 24 by the refrigerant supply unit 29. That is, the flake ice manufacturing apparatus 10 can freeze the brine attached to the wall surface of the inner cylinder 22 faster as the temperature of the wall surface of the inner cylinder 22 is lower.
- the flake ice production apparatus 10 can generate more ice in a shorter time as the temperature of the refrigerant supplied to the refrigerant clearance 24 is lower. Specifically, for example, when LNG at ⁇ 160 ° C. is supplied to the refrigerant clearance 24, the temperature of the wall surface of the inner cylinder 22 rapidly decreases. For this reason, the flake ice manufacturing apparatus 10 can generate a large amount of ice up to about ⁇ 150 ° C. in a short time.
- the refrigerant supplied to the refrigerant clearance 24 can be circulated between the refrigerant clearance 24 and the refrigerant supply unit 29 via the refrigerant pipe 35.
- coolant clearance 24 can be maintained in a state with a high cooling function.
- the rotation control unit 27 adjusts the rotation speed of the ejection unit 13 and the stripping unit 14 that rotate together with the rotating shaft 12 by adjusting the rotation speed of the geared motor 20.
- the method by which the rotation control unit 27 controls the rotation speed is not particularly limited. Specifically, for example, a control method using an inverter may be employed.
- FIG. 2 is a diagram showing the thermal conductivity of each member used on the ice making surface (for example, the wall surface of the inner cylinder 22 in FIG. 1).
- the members constituting the ice making surface have different thermal conductivities. For this reason, the ice making speed varies depending on which member is used for the ice making surface. Specifically, for example, the thermal conductivity (W / m ⁇ K) of stainless steel is 16 when the temperature is 20 ° C. Moreover, the thermal conductivity (W / m ⁇ K) of pure iron is 67 when the temperature is 20 ° C., which is higher than that of stainless steel. Further, the thermal conductivity (W / m ⁇ K) of copper (ordinary product) is 372 when the temperature is 20 ° C., which is higher than that of pure iron.
- the thermal conductivity (W / m ⁇ K) of silver is 418 when the temperature is 20 ° C., and is higher than copper (ordinary product). That is, the thermal conductivity of the ice-making member illustrated in FIG. 2 increases in the order of silver> copper (ordinary product)> pure iron> stainless steel under the same temperature condition. For this reason, the ice making speed also increases in the order of silver> copper (ordinary product)> pure iron> stainless steel.
- the flake ice manufacturing apparatus 10 can adjust the ice making speed by arbitrarily changing the members constituting the wall surface of the inner cylinder 22.
- a member having a high thermal conductivity such as silver or copper is selected as a member constituting the wall surface of the inner cylinder 22, and an ultra-low temperature refrigerant such as LNG is selected as a refrigerant for cooling the wall surface of the inner cylinder 22.
- an ultra-low temperature refrigerant such as LNG is selected as a refrigerant for cooling the wall surface of the inner cylinder 22.
- FIG. 3 is an image diagram showing an overview of the entire flake ice production system 60 including the flake ice production apparatus 10 of FIG.
- the flake ice production system 60 includes a flake ice production apparatus 10, a brine storage tank 30, a pump 31, a brine pipe 32, a brine tank 33, a flake ice storage tank 34, a refrigerant pipe 35, and a freezing point adjustment unit. 36.
- the brine storage tank 30 stores brine as a raw material for flake ice.
- the brine stored in the brine storage tank 30 is fed to the rotary joint 21 via the brine pipe 32 by operating the pump 31, and becomes flake ice by the flake ice manufacturing apparatus 10. That is, the brine fed to the rotary joint 21 is fed to the pit hole 12 a formed in the rotary joint 21 and the rotary shaft 12, and is fed from the pit hole 12 a to each pipe constituting the injection unit 13.
- the brine tank 33 supplies brine to the brine storage tank 30 when the brine in the brine storage tank 30 is low. Note that the brine that has flowed down without freezing on the wall surface of the inner cylinder 22 is stored in the brine storage tank 30 and is fed again to the rotary joint 21 via the brine pipe 32 by operating the pump 31.
- the flake ice storage tank 34 is disposed immediately below the flake ice manufacturing apparatus 10 and stores the flake ice that has fallen from the flake ice discharge port 16 of the flake ice manufacturing apparatus 10.
- the freezing point adjustment unit 36 adjusts the freezing point of the brine supplied to the brine storage tank 30 by the brine tank 33.
- the freezing point of the salt water varies depending on the concentration, so the freezing point adjustment unit 36 adjusts the concentration of the salt water stored in the brine storage tank 30.
- the method for adjusting the freezing point of the brine is not particularly limited to this.
- the following method can also be employed. That is, a plurality of brine storage tanks 30 are provided, and a plurality of types of brines having different freezing points are stored in each of several brine storage tanks 30.
- the brine freezing point adjustment unit 37 selects a predetermined type of brine based on the required temperature of the flake ice (for example, the required cool temperature for the transported product transported by the flake ice), The flake ice production apparatus 10 is supplied. Thus, the temperature of the flake ice produced can be adjusted by adjusting the freezing point of the brine.
- the refrigerant supply unit 29 supplies the refrigerant to the refrigerant clearance 24 and sets the temperature of the wall surface of the inner cylinder 22 to be about ⁇ 10 ° C. lower than the freezing point of the salt water. Thereby, the salt water adhering to the wall surface of the inner cylinder 22 can be frozen.
- the ice making speed in the flake ice manufacturing apparatus 10 is adjusted according to the thermal conductivity of the member employed as the wall surface of the inner cylinder 22.
- the ice making speed in the flake ice manufacturing apparatus 10 is adjusted according to the area of the portion of the wall surface of the inner cylinder 22 where the brine may adhere. Further, the ice making speed in the flake ice manufacturing apparatus 10 is adjusted according to the temperature of the refrigerant supplied by the refrigerant supply unit 29.
- the rotation control unit 27 drives the geared motor 20 to rotate the rotating shaft 12 around the material axis.
- the pump 31 supplies brine that is brine into the rotary shaft 12 from the brine storage tank 30 via the rotary joint 21.
- the injection unit 13 that rotates together with the rotating shaft 12 injects salt water toward the wall surface of the inner cylinder 22.
- the salt water sprayed from the spray unit 13 comes into contact with the wall surface of the inner cylinder 22, it freezes instantly and ice is generated.
- the rotation control unit 27 controls the rotation speed of the rotating shaft 12 to 2 to 4 rpm.
- the rotation control unit 27 controls the rotation speed of the rotary shaft 12 to 10 to 15 rpm.
- the ice generated on the wall surface of the inner cylinder 22 is peeled off by the peeling unit 14 that rotates together with the rotating shaft 12.
- the ice peeled off by the peeling unit 14 falls from the discharge port 16 as flake ice.
- the flake ice that has fallen from the discharge port 16 is stored in a flake ice storage tank 34 disposed immediately below the flake ice manufacturing apparatus 10.
- the salt water that does not become ice but flows down the wall surface of the inner cylinder 22 is stored in the brine storage tank 30, and is fed again to the rotary joint 21 via the brine pipe 32 by operating the pump 31. .
- the brine tank 33 supplies the salt water stored in itself to the brine storage tank 30.
- the rotation control unit 27 can change the temperature of the flake ice manufactured by the flake ice manufacturing apparatus 10 by changing the rotation speed of the geared motor 20.
- salt water is adopted as the brain.
- the freezing point at which salt water freezes depends only on the solute concentration.
- salt water freezes at ⁇ 1.2 ° C. in any case when the applicant adopts salt water as a brain and changes the rotation speed of the rotary shaft 12 using the flake ice production apparatus 10 of the present embodiment, flake ice produced from the same concentration of salt water is obtained.
- the temperature of the liquid crystal changes according to the rotational speed, and in particular, the temperature decreases as the rotational speed decreases.
- the reason for this is that the flake ice is maintained until the ice-heated state is completely melted. Thereby, the temperature of flake ice can be adjusted, fixing the density
- the ice slurry can be manufactured according to the required cold insulation temperature and cold preservation time by using a plurality of types of brine prepared in advance. It is assumed that the brine is salt water, the to-be-cooled product is a fresh seafood, and that the frozen seafood is immediately frozen by placing the fresh to-be-cooled product directly in the ice slurry.
- the solute concentration of salt water which is the raw material of ice slurry, is set to be significantly higher than before.
- the theoretical saturation freezing point of salt water having a solute concentration of 13.6% is ⁇ 9.8 ° C.
- the theoretical saturation freezing point of salt water having a solute concentration of 23.1% is ⁇ 21.2 ° C.
- the solute concentration of salt water is less than 13.6%, the freezing rate of fresh seafood by the produced ice slurry becomes slow.
- the solute concentration of the salt water exceeds 23.1%, the salt content is precipitated as crystals, so that the saturation freezing point of the salt water increases.
- the solute concentrations of the flake ice and the salt water to be mixed for producing the ice slurry are approximately the same (concentration difference within several percent).
- the solute concentration of the flake ice is higher than the solute concentration of the salt water, the temperature of the flake ice is lower than the saturation freezing point of the salt water, so that the water freezes immediately after mixing the salt water having a low solute concentration.
- the solute concentration of the flake ice is lower than the solute concentration of the salt water, since the saturation freezing point of the salt water is lower than the saturation freezing point of the flake ice, the flake ice melts and the temperature of the ice slurry decreases. Therefore, in order not to change the state of the ice slurry, it is desirable that the solute concentrations of the flake ice and the salt water to be mixed are approximately the same.
- the ratio of solid content will become high when the mass ratio of flake ice exceeds 75 mass%, a clearance gap will generate
- the mass ratio of ice is less than 20% by mass, it is difficult to instantly freeze fresh seafood by the produced ice slurry.
- An ice slurry is prepared by mixing with ⁇ 23.1% brine.
- the temperature of the produced ice slurry is ⁇ 9.8 ° C. to ⁇ 21.2 ° C.
- the temperature of the salt water mixed with the manufactured flake ice is set to room temperature or lower. In addition, ice-making efficiency becomes high, so that the temperature of salt water is low.
- the concentration of the brine and the mass ratio of the mixed flake ice and brine are adjusted so that the temperature of the produced ice slurry becomes the required temperature.
- concentration of the brine and the mass ratio of the flake ice and the brine to be mixed it is possible to produce an ice slurry having a plurality of types of temperatures.
- the ice making device of the present invention does not need to be configured as the flake ice manufacturing device 10 shown in FIG. 1 as an embodiment, and may be an ice making device including the components of the present invention.
- the ice produced by the ice making apparatus of the present invention is preferably liquid ice containing an aqueous solution containing a solute that satisfies the above conditions (a) and (b). Ice) that does not satisfy one or both of the conditions. That is, the object to be cooled may be kept cold using ice slurries having different solute concentrations of ice and water.
- the flake ice manufacturing apparatus 10 according to an embodiment of the ice making apparatus of the present invention, flake ice at an arbitrary temperature can be efficiently manufactured, so the size of the flake ice manufacturing apparatus 10 itself is made more compact. Can be made.
- the flake ice manufacturing apparatus 10 having a smaller volume than the entire volume of the cooled object to be loaded can be mounted. That is, when transporting a cold object, an ice slurry for cooling the cold object is required in proportion to the amount of the cold object to be transported. Vehicles, ships, and aircraft have maximum loading capacity.
- the flake ice manufacturing apparatus 10 In order to maximize the load amount of the object to be cooled within the range of the maximum load amount, it is necessary to minimize the amount of ice slurry within the range in which the cooling effect can be maintained. At this time, if the flake ice manufacturing apparatus 10 is made compact, the volume of the cold-reserved object can be maximized within the range of the maximum load capacity because the volume of the ice-cold object can be smaller than that of the entire cold-retained object to be loaded. It becomes possible to make it.
- the saw teeth 15 a touch the wall surface of the inner cylinder 22 when the ice attached to the wall surface of the inner cylinder 22 is peeled off. For this reason, the wall surface of the inner cylinder 22 is easily worn and deteriorated. In particular, when the material is softer than the saw tooth 15a such as copper, the deterioration becomes remarkable.
- a replaceable liner can be attached to the wall surface of the inner cylinder 22. Thereby, the quality of the wall surface of the inner cylinder 22 can be maintained by replacing only the liner without performing a large-scale repair work such as replacing the inner cylinder 22 or the entire drum 11.
- the liner is preferably made of the same material as the wall surface of the inner cylinder 22, but may not be the same material.
- the method for attaching the liner to the wall surface of the inner cylinder 22 is not particularly limited.
- a spiral groove is provided in each of the liner and the wall surface of the inner cylinder 22 in contact with the liner so that the liner is screwed into the drum 11 so that the liner is screwed into the drum 11. It may be attached to the wall.
- the liner may be once cooled to shrink the volume and then attached to the wall surface of the inner cylinder 22.
- the liner since the volume of the liner expands when the temperature of the liner returns to room temperature, the liner can be adhered and fixed to the wall surface of the inner cylinder 22.
- a constant frictional force can be generated between the wall surface of the inner cylinder 22 and the surface where the liner is in close contact, so that it is possible to prevent an accident in which the liner slips from the wall surface of the inner cylinder 22 and falls off. it can.
- the brine is salt water (sodium chloride aqueous solution) in the above-described embodiment, but is not particularly limited. Specifically, for example, an aqueous calcium chloride solution, an aqueous magnesium chloride solution, ethylene glycol, or the like can be employed. Thereby, a plurality of types of brines having different freezing points according to differences in solute or concentration can be prepared.
- the ice slurry containing ice produced by the ice making device of the present invention contains a solid having a higher thermal conductivity than the ice produced by the ice making device of the present invention
- another object may be interposed between ice, a solid having a higher thermal conductivity than ice, and an object to be cooled, depending on the purpose.
- it is not preferable to be in direct contact with the object to be cooled in the ice slurry for example, it is not preferable to be in contact with the object to be cooled from the viewpoint of safety, a solid having a higher thermal conductivity than ice (metal such as copper) ) Etc.
- either the ice slurry or the object to be cooled may be accommodated in the bag, and the ice slurry and the object to be cooled may be cooled so as not to be in direct contact with each other.
- the ice generated by the flake ice manufacturing apparatus 10 can be used for the following applications in addition to cooling the object to be cooled. That is, it can also be used for freezing industrial waste liquid, freezing manure, liquefying gas, and the like.
- the ice making apparatus to which the present invention is applied only needs to have the following configuration, and can take various embodiments. That is, the ice making device to which the present invention is applied (for example, the flake ice making device 10 in FIG. 1) It has an ice making surface (for example, the wall surface of the inner cylinder 22 in FIG. 1) and a cooling unit (for example, the inner cylinder 22 in FIG. 1) for cooling the ice making surface, and freezes the brine adhering to the cooled ice making surface.
- An ice making part for example, the inner cylinder 22, the outer cylinder 23, and the refrigerant clearance 24 in FIG. 1 that generates ice by A brine supply unit (for example, the injection unit 13 in FIG.
- the ice making surface can be made of copper. Thereby, ice with high cooling ability can be generated more efficiently.
- the ice making speed is Y and the area of the ice making surface where the brine may be attached is x2, the following equation (2) can be established.
- Y f (x2) (2)
- the ice making speed can be adjusted by adjusting the area of the ice making surface where the brine may adhere.
- the cooling unit further includes a refrigerant supply unit (for example, the refrigerant supply unit 29 in FIG. 1) for supplying a predetermined refrigerant to cool the ice making surface.
- a refrigerant supply unit for example, the refrigerant supply unit 29 in FIG. 1
- Y f (x3) (3)
- the ice making speed can be adjusted by selecting the refrigerant and adjusting the temperature of the ice making surface.
- the brine supply unit The brine can be deposited by spraying onto the ice making surface.
- the brine supply unit The brine can be adhered to the ice making surface by naturally flowing down. Thereby, the ice making speed can be adjusted according to the method of attaching the brine to the ice making surface.
- the ice making surface is made of copper,
- the refrigerant can be LNG.
- the ultra-low temperature ice can be efficiently generated, and therefore flake ice matched with a wide range of required cold insulation temperatures can be easily produced.
- the ice making part Further comprising a liner covering the ice making surface,
- the liner can be replaceable. Thereby, the quality of the ice making surface can be maintained by replacing only the liner without performing a large repair work such as replacing the entire ice making unit.
- the flake ice manufacturing apparatus to which the present invention is applied includes the ice making unit, the brine supply unit, and the recovery unit.
- the ice making part is A drum including an inner cylinder having the ice making surface, an outer cylinder surrounding the inner cylinder, a clearance formed between the inner cylinder and the outer cylinder, and a refrigerant that supplies refrigerant to the clearance And further comprising a supply unit,
- the brine supply unit A rotation unit that rotates around a central axis of the drum, and further includes an injection unit that injects the brine toward the ice making surface of the inner cylinder;
- the collection unit The brine jetted from the jetting unit is further attached to the inner surface of the inner cylinder cooled by the refrigerant supplied to the clearance, and further comprises a stripping unit for stripping off the ice generated as a result,
- the design (1) is established.
- the thermal conductivity at 20 ° C. of the ice making surface can be 70 W / mK or more.
- the ice making speed is Y and the area of the ice making surface where the brine is likely to be attached is x2, it can be designed so that the formula (2) is satisfied.
- the said ice making speed is set to Y and the temperature of the said ice making surface is set to x3, it can design so that the said Formula (3) may be formed.
- the brine supply unit The brine can be adhered to the ice making surface by naturally flowing down.
- the refrigerant may be LNG.
- the ice making part Further comprising a liner covering the ice making surface, The liner can be replaceable.
- the flake ice manufacturing apparatus of 1 aspect of this invention can be mounted in a moving body.
- the size of flake ice manufacturing apparatus itself can be made more compact. For this reason, for example, in a vehicle, a ship, and an aircraft for transporting the object to be cooled, a flake ice manufacturing apparatus having a smaller volume than the volume of the entire cold object to be loaded can be mounted.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Inorganic Chemistry (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
Description
ただし、特許文献1を含め従来の技術では、生鮮海産物中の水分は凍結すると結晶化するが、生鮮海産物中の氷の結晶が大きくなるため、生鮮海産物の細胞組織が破壊され、鮮度、味覚を維持できないという問題がある。
また、塩水を凍らせた氷は、凍結点の高い真水の部分から凍結し始め、最終的に凍結する部分には、少量の塩水が凍結した部分や、氷の周りに析出した塩が付着している状況となり、氷の溶質濃度は不均一となってしまう。そして、融解時には、最終的に凍結した部分が先に融解し、高濃度の塩水が出てくるため、融解水は、融解の過程で溶質濃度が大幅に変化したり、温度が0℃に向けて上昇するといった技術的な課題があった。
そこで、本出願人は、冷却能に優れ、かつ、分離しない状態を長く持続させることができるフレークアイスを製造する装置について、既に特許出願をしている(特願2016-103637)。 Therefore, in Patent Document 1, in a salt-containing water ice making method in which salt-containing ice obtained by freezing salt-containing water having a solute concentration of approximately 0.5 to 2.5% is formed into a slurry, filtration is performed. Sterilized raw water, such as seawater, is adjusted to a salt content to obtain a salt-containing water having a solute concentration of about 1.0 to 1.5%, and the salt-containing water is rapidly cooled to cope with the solute concentration- A method is disclosed for producing slurry-like salt-containing ice having a freezing point temperature of 5 to -1 ° C.
However, in the conventional techniques including Patent Document 1, water in fresh seafood crystallizes when frozen, but since ice crystals in fresh seafood become large, the cellular structure of fresh seafood is destroyed, and freshness and taste are reduced. There is a problem that it cannot be maintained.
In addition, ice frozen in salt water begins to freeze from the fresh water portion with a high freezing point, and a portion where a small amount of salt water has frozen or salt deposited around the ice adheres to the portion that will eventually freeze. As a result, the solute concentration of ice becomes uneven. At the time of thawing, the part that was finally frozen thaws first, and high-concentration salt water comes out, so that the solute concentration in the melted water changes significantly during the melting process, or the temperature goes to 0 ° C. There was a technical problem of rising.
Therefore, the present applicant has already filed a patent application for an apparatus for producing flake ice that is excellent in cooling ability and can maintain a state in which it is not separated for a long time (Japanese Patent Application No. 2016-103637).
製氷面と、前記製氷面を冷却する冷却部とを有し、冷却された前記製氷面に付着したブラインを凍結させることにより氷を生成する製氷部と、
前記製氷面に対し、前記ブラインを付着させることにより供給するブライン供給部と、
前記製氷部により生成された前記氷を回収する回収部と、
を備え、
前記製氷部における、単位時間当たりの前記氷の生成量を示す製氷速度をYとし、前記製氷面の熱伝導率をx1としたときに、次式(1)が成り立つように設計されている。
Y=f(x1) ・・・(1) In order to achieve the above object, an ice making device of one embodiment of the present invention includes:
An ice making surface, and a cooling unit that cools the ice making surface; and an ice making unit that generates ice by freezing brine attached to the cooled ice making surface;
A brine supply unit for supplying the brine by attaching the brine to the ice making surface;
A recovery unit for recovering the ice generated by the ice making unit;
With
In the ice making section, when the ice making speed indicating the amount of ice produced per unit time is Y and the thermal conductivity of the ice making surface is x1, the following equation (1) is established.
Y = f (x1) (1)
前記製氷面の20℃における熱伝導率は70W/mK以上に構成されることができる。 Also,
The thermal conductivity of the ice making surface at 20 ° C. can be 70 W / mK or more.
Y=f(x2) ・・・(2) Further, when the ice making speed is Y and the area of the ice making surface where the brine may be attached is x2, the following equation (2) can be established.
Y = f (x2) (2)
前記製氷速度をYとし、前記製氷面の温度をx3としたときに、次式(3)が成り立つように設計されることができる。
Y=f(x3) ・・・(3) The cooling unit further includes a refrigerant supply unit that supplies a predetermined refrigerant to cool the ice making surface.
When the ice making speed is Y and the temperature of the ice making surface is x3, the following equation (3) can be established.
Y = f (x3) (3)
前記ブラインを、前記製氷面に噴射することにより付着させることができる。 The brine supply unit
The brine can be deposited by spraying onto the ice making surface.
前記ブラインを、前記製氷面に自然流下させることにより付着させることができる。 The brine supply unit
The brine can be adhered to the ice making surface by naturally flowing down.
前記製氷面を覆うライナーをさらに備え、
前記ライナーは交換可能とすることができる。 In addition, the ice making part
Further comprising a liner covering the ice making surface,
The liner can be replaceable.
前記製氷部は、
前記製氷面を有する内筒と、当該内筒を囲繞する外筒と、当該内筒と当該外筒との間に形成されるクリアランスとを含むドラムと、前記クリアランスに対して冷媒を供給する冷媒供給部をさらに備え、
前記ブライン供給部は、
前記ドラムの中心軸を軸として回転する回転軸と共に回転し、前記内筒の前記製氷面に向けて前記ブラインを噴射する噴射部をさらに備え、
前記回収部は、
前記噴射部から噴射された前記ブラインが、前記クリアランスに供給された前記冷媒により冷却された前記内筒の内面に付着し、その結果として生成された氷を剥ぎ取る剥取部をさらに備え、
前記製氷部における、単位時間当たりの前記氷の生成量を示す生成速度をYとし、前記製氷面の熱伝導率をx1としたときに、前式(1)が成り立つように設計されることができる。 The flake ice manufacturing apparatus of one aspect of the present invention includes the ice making unit, the brine supply unit, and the recovery unit,
The ice making part is
A drum including an inner cylinder having the ice making surface, an outer cylinder surrounding the inner cylinder, a clearance formed between the inner cylinder and the outer cylinder, and a refrigerant that supplies refrigerant to the clearance And further comprising a supply unit,
The brine supply unit
A rotation unit that rotates around a central axis of the drum, and further includes an injection unit that injects the brine toward the ice making surface of the inner cylinder;
The collection unit
The brine jetted from the jetting unit is further attached to the inner surface of the inner cylinder cooled by the refrigerant supplied to the clearance, and further comprises a stripping unit for stripping off the ice generated as a result,
In the ice making section, when the production rate indicating the amount of ice produced per unit time is Y and the thermal conductivity of the ice making surface is x1, the above equation (1) is established. it can.
前記ブラインを、前記製氷面に自然流下させることにより付着させることができる。 The brine supply unit
The brine can be adhered to the ice making surface by naturally flowing down.
前記製氷面を覆うライナーをさらに備え、
前記ライナーは交換可能とすることができる。 In addition, the ice making part
Further comprising a liner covering the ice making surface,
The liner can be replaceable.
本発明の製氷装置により生成された氷は、以下の(a)及び(b)の条件を満たす、溶質を含有する水溶液を含む液体の氷である。なお、「フレークアイス」とは、薄片状に加工された氷のことをいう。
(a)融解完了時の温度が0℃未満である
(b)融解過程で前記氷から発生する水溶液の溶質濃度の変化率が30%以内である <Ice>
The ice produced by the ice making device of the present invention is liquid ice containing an aqueous solution containing a solute that satisfies the following conditions (a) and (b). “Flake ice” refers to ice processed into flakes.
(A) The temperature at the completion of melting is less than 0 ° C. (b) The change rate of the solute concentration of the aqueous solution generated from the ice during the melting process is within 30%.
ここで、氷が水に変化するときに必要な熱を「潜熱」というが、この潜熱は温度変化を伴わない。このような潜熱の効果により、上記のような凝固点が低下した氷は、融解時に真水の凝固点以下の温度で安定な状態が続くため、冷熱エネルギーを蓄えた状態が持続することになる。
よって、本来であれば、被冷却物の冷却能が真水からなる氷より高くなるはずである。しかし、従来の技術によって生成された氷は、冷却の際に自身の温度が経時的に早く上がる等、被冷却物を冷却する能力が十分なものではないことを本発明者らは発見した。その理由について本発明者らは検討したところ、従来の技術では食塩等の溶質を含有する水溶液から氷を製造したとしても、実際は、水溶液が凍る前に溶質を含まない氷が先に製造されてしまい、結果として製造されるのは溶質を含まない氷と溶質との混合物となってしまうか、あるいは、凝固点の低下した氷はほんの僅かしか生成されないため、冷却能の高い氷が製造されていなかったことがわかった。 It is known that when a solute is melted in water, a freezing point depression occurs in which the freezing point of the aqueous solution is lowered. The freezing point of an aqueous solution in which a solute such as sodium chloride has been melted due to the action of lowering the freezing point is lowered. That is, ice made of such an aqueous solution is ice that has solidified at a lower temperature than ice made of fresh water.
Here, the heat required when ice changes to water is referred to as “latent heat”, but this latent heat is not accompanied by a temperature change. Due to the effect of such latent heat, the ice having a reduced freezing point as described above continues to be stable at a temperature below the freezing point of fresh water when melted, so that the state where cold energy is stored continues.
Therefore, the cooling ability of the object to be cooled should be higher than that of ice made of fresh water. However, the present inventors have found that the ice produced by the conventional technique does not have sufficient ability to cool the object to be cooled, such as the temperature of the ice rising rapidly with time. The present inventors examined the reason, and even if ice was produced from an aqueous solution containing a solute such as salt in the conventional technique, in practice, ice containing no solute was first produced before the aqueous solution was frozen. As a result, a mixture of ice and solute containing no solute is produced, or only a small amount of ice having a reduced freezing point is produced, so that ice with high cooling capacity is not produced. I found out.
上記(a)に関して、本発明の製氷装置により生成された氷は、溶質を含む水溶液を含む液体の氷であるため、真水(溶質を含まない水)の凝固点より凝固点の温度が低下している。そのため、融解完了時の温度が0℃未満であるという特徴を有する。「融解完了時の温度」とは、本発明の製氷装置により生成された氷を融点以上の環境下(例えば、室温、大気圧下)に置くことで氷の融解を開始させ、全ての氷が融解して水になった時点におけるその水の温度のことを指す。 (Temperature at the completion of melting)
Regarding the above (a), since the ice produced by the ice making device of the present invention is liquid ice containing an aqueous solution containing a solute, the temperature of the freezing point is lower than the freezing point of fresh water (water containing no solute). . Therefore, it has the characteristic that the temperature at the time of completion of melting is less than 0 ° C. “Temperature at the completion of melting” means that the ice produced by the ice making apparatus of the present invention is placed in an environment above the melting point (for example, room temperature and atmospheric pressure) to start melting of the ice. It refers to the temperature of water when it melts into water.
上記(b)に関して、本発明の製氷装置により生成された氷は、融解過程で氷から発生する水溶液の溶質濃度の変化率(以下、本明細書において「溶質濃度の変化率」と略称する場合がある。)が30%以内であるという特徴を有する。従来の技術によっても、わずかに凝固点の低下した氷が生じる場合もあるが、そのほとんどは溶質を含まない水の氷と溶質の結晶との混合物であるため、冷却能が十分なものでない。このように溶質を含まない水の氷と溶質の結晶との混合物が多く含まれる場合、氷を融解条件下においた場合、融解に伴う溶質の溶出速度が不安定であり、融解開始時に近い時点である程、溶質が多く溶出し、融解が進むとともに溶質の溶出する量が少なくなり、融解が完了時に近い時点程、溶質の溶出量が少なくなる。これに対し、本発明の製氷装置により生成された氷は、溶質を含む水溶液を含む液体の氷からなるものであるため、融解過程における溶質の溶出速度の変化が少ないという特徴を有する。具体的には、融解過程で氷から発生する水溶液の溶質濃度の変化率が30%である。なお、「融解過程で氷から発生する水溶液の溶質濃度の変化率」とは、融解過程の任意の時点での発生する水溶液における溶質濃度に対する、融解完了時における水溶液の濃度の割合を意味する。なお、「溶質濃度」とは、水溶液中の溶質の質量の濃度を意味する。 (Change rate of solute concentration)
Regarding the above (b), the ice produced by the ice making apparatus of the present invention is the rate of change in the solute concentration of the aqueous solution generated from the ice during the melting process (hereinafter referred to as the “rate of change in solute concentration” in this specification). Is) within 30%. Even with the conventional technique, ice having a slightly reduced freezing point may be generated, but most of them are a mixture of water-free ice and solute crystals, so that the cooling capacity is not sufficient. When there is a large mixture of ice and solute crystals of water that does not contain solute in this way, when the ice is placed under melting conditions, the elution rate of the solute accompanying melting is unstable, The more the solute is eluted, the more the solute is eluted, the less the amount of the solute is eluted. On the other hand, the ice produced by the ice making device of the present invention is composed of liquid ice containing an aqueous solution containing a solute, and therefore has a feature that there is little change in the elution rate of the solute during the melting process. Specifically, the change rate of the solute concentration of the aqueous solution generated from ice during the melting process is 30%. The “rate of change in the solute concentration of an aqueous solution generated from ice during the melting process” means the ratio of the concentration of the aqueous solution at the completion of melting to the solute concentration in the aqueous solution generated at an arbitrary point in the melting process. The “solute concentration” means the concentration of the mass of the solute in the aqueous solution.
本発明の製氷装置により生成された氷に含まれる溶質の種類は、水を溶媒としたときの溶質であれば特に限定されず、所望の凝固点、使用する氷の用途等に応じて、適宜選択することができる。溶質としては、固体状の溶質、液状の溶質等が挙げられるが、代表的な固体状の溶質としては、塩類(無機塩、有機塩等)が挙げられる。特に、塩類のうち、食塩(NaCl)は、凝固点の温度を過度に下げすぎず、生鮮動植物又はその一部の冷却に適してことから好ましい。また、食塩は海水に含まれるものであるため、調達が容易であるという点でも好ましい。また、液状の溶質としては、エチレングリコール等が挙げられる。なお、溶質は1種単独で含まれてもよく、2種以上含まれてもよい。 (Solute)
The type of solute contained in the ice produced by the ice making apparatus of the present invention is not particularly limited as long as it is a solute when water is used as a solvent, and is appropriately selected depending on the desired freezing point, the intended use of the ice to be used, etc. can do. Examples of the solute include solid solutes and liquid solutes, and typical solid solutes include salts (inorganic salts, organic salts, etc.). Particularly, among salts, sodium chloride (NaCl) is preferable because it does not excessively lower the temperature of the freezing point and is suitable for cooling fresh animals and plants or a part thereof. Moreover, since salt is contained in seawater, it is also preferable in terms of easy procurement. Moreover, ethylene glycol etc. are mentioned as a liquid solute. In addition, a solute may be contained individually by 1 type and may be contained 2 or more types.
本発明の製氷装置により生成された氷は、被保冷物を冷却させる冷媒とすることができる。上記のとおり、本発明の製氷装置により生成された氷は冷却能に優れるため、被保冷物を冷却させる冷媒に好適である。
なお、被保冷物を冷却させるための冷媒と、内筒22(図1参照)を冷却させるための冷媒との混同を防ぐため、被保冷物を冷却させるための冷媒を、以下「氷スラリー」と呼ぶ。氷スラリーは、本発明の製氷装置により生成された氷と、水溶液を含む液体との混合物である。 (Refrigerant that cools the object to be cooled)
The ice produced by the ice making device of the present invention can be used as a refrigerant for cooling the object to be cooled. As described above, the ice produced by the ice making device of the present invention is excellent in cooling ability, and thus is suitable as a refrigerant for cooling an object to be cooled.
In order to prevent confusion between the refrigerant for cooling the object to be cooled and the refrigerant for cooling the inner cylinder 22 (see FIG. 1), the refrigerant for cooling the object to be cooled is hereinafter referred to as “ice slurry”. Call it. The ice slurry is a mixture of ice produced by the ice making device of the present invention and a liquid containing an aqueous solution.
フレークアイス製造装置10は、上述の氷生成工程後に、壁面上において生成された氷を回収する工程を有する。 (Recovery process)
The flake
ドラム11は、内筒22と、内筒22を囲繞する外筒23と、内筒22と外筒23との間に形成される冷媒クリアランス24とで構成される。また、ドラム11の外周面は、円筒状の防熱保護カバー19によって覆われている。 As shown in FIG. 1, the flake
The
ここで、フレークアイス製造装置10は、内筒22の壁面に生成される氷の単位時間当たりの生成量を示す製氷速度をYとし、内筒22の壁面を構成する部材の熱伝導率をx1としたときに、次式(1)が成り立つように設計されている(fは関数(function)を意味する)。
Y=f(x1) ・・・(1) The inner cylinder 22 has a wall surface, and when the wall surface is cooled, the brine attached to the wall surface is frozen and ice is generated.
Here, the flake
Y = f (x1) (1)
このため、内筒22を構成する部材を熱伝導率の高い部材とすることにより、製氷速度を上げることができる。また、反対に、内筒22を構成する部材を熱伝導率の低い部材とすることにより、製氷速度を下げることができる。
本実施形態では、内筒22の壁面を構成する部材として、ステンレスや鉄よりも熱伝導率が高い部材が採用されており、より具体的には、20℃における熱伝導率が70W/mK以上の部材(例えば、銅)が採用されている。このため、フレークアイス製造装置10は、内筒22の壁面を構成する部材にステンレスや鉄を採用した場合に比べて、短時間で多くの氷を生成することができる。一般に大量に氷を製造しようとした場合、短時間で効率的に氷を製造するためには内筒22の壁面の表面積を広くする必要があるが、内筒22の壁面を熱伝導理が高い部材により構成することで氷の製造速度が上がるため、内筒22の壁面を広くする必要がなくなり、結果として比較的狭いスペースでの氷の製造も可能となる。この観点で、内筒22の壁面を構成する部材は、熱伝導率が高い部材を採用することが好ましく、より具体的には20℃における熱伝導率が100W/mK以上の部材がより好ましく、20℃における熱伝導率が150W/mK以上の部材がより一層好ましく、20℃における熱伝導率が200W/mK以上の部材がさらに好ましく、20℃における熱伝導率が250W/mK以上の部材がさらに一層好ましく、20℃における熱伝導率が300W/mK以上の部材が特に好ましい。熱伝導率の上限は特に制限されないが、例えば、20℃における熱伝導率が1000W/mK以下(900W/mK以下、800W/mK以下、700W/mK以下、600W/mK以下、500W/mK以下、400W/mK以下等)であってもよい。内筒22の壁面を構成する部材の具体例としては、亜鉛、アルミニウム、ジェラルミン、金、銀、タングステン、銅、アルミ青銅、七三黄銅、ネーバル黄銅、ニッケル(99.9%)、モリブデン、パラジウム、ケイ素等が挙げられる。また、本発明のフレークアイス製造装置は、上述のとおり、比較的狭いスペースでの製造に適しており、例えば、輸送機器(例えば、車両(トラック等)、船)内部のような限られたスペースしかないような場所における製造に適している。
なお、内筒22の壁面を構成する部材と熱伝導率との関係は、図2に示す部材の具体例を参照して後述する。 That is, the higher the thermal conductivity of the wall surface of the inner cylinder 22 to which the brine adheres, the faster the temperature of the refrigerant that cools the wall surface of the inner cylinder 22 is transmitted to the brine, so that more ice is generated in a short time.
For this reason, the ice making speed | rate can be raised by making the member which comprises the inner cylinder 22 into a member with high heat conductivity. On the other hand, the ice making speed can be reduced by making the member constituting the inner cylinder 22 a member having low thermal conductivity.
In the present embodiment, a member having a higher thermal conductivity than stainless steel or iron is employed as a member constituting the wall surface of the inner cylinder 22, and more specifically, the thermal conductivity at 20 ° C. is 70 W / mK or more. These members (for example, copper) are employed. For this reason, the flake
In addition, the relationship between the member which comprises the wall surface of the inner cylinder 22, and heat conductivity is later mentioned with reference to the specific example of the member shown in FIG.
Y=f(x2) ・・・(2)
即ち、内筒22の壁面のうちブラインを付着させることができる部分の面積を大きくすれば、それだけ内筒22の壁面に付着することができるブラインの量が増える。このため、結果的に内筒22の壁面に生成される氷の量も増える。反対に、内筒22の壁面のうちブラインを付着させることができる部分の面積を小さくければ、それだけ内筒22の壁面に付着することができるブラインの量が減る。このため、結果的に内筒22の壁面に生成される氷の量も減る。
このように、内筒22の壁面のうちブラインを付着させることができる部分の面積が調節されることにより製氷速度が調節される。 Further, the flake
Y = f (x2) (2)
That is, if the area of the portion of the wall surface of the inner cylinder 22 where the brine can be attached is increased, the amount of brine that can be attached to the wall surface of the inner cylinder 22 increases accordingly. As a result, the amount of ice generated on the wall surface of the inner cylinder 22 also increases. On the contrary, if the area of the portion of the wall surface of the inner cylinder 22 where the brine can be attached is reduced, the amount of brine that can be attached to the wall surface of the inner cylinder 22 is reduced accordingly. As a result, the amount of ice produced on the wall surface of the inner cylinder 22 is also reduced.
In this way, the ice making speed is adjusted by adjusting the area of the portion of the wall surface of the inner cylinder 22 where the brine can be attached.
冷媒クリアランス24には、冷媒供給部29から冷媒配管35を介して冷媒が供給される。これにより内筒22の壁面が冷却される。 The material of the outer cylinder 23 is not particularly limited. In this embodiment, steel is employed.
Refrigerant is supplied to the
また、回転軸12の頂部にはロータリージョイント21が取り付けられている。ロータリージョイント21なお、回転軸12の上部には、材軸方向に延在し各パイプ13と連通する竪穴12aが形成されている(図3参照)。 The
A rotary joint 21 is attached to the top of the
噴射部13を構成する複数のパイプは、回転軸12からドラム11の半径方向に放射状に延出している。各パイプの設置高さは特に限定されないが、本実施形態では、ドラム11の内筒22高さの上部位置に設置されている。なお、パイプに代えてスプレーノズル等を採用してもよい。 The
The plurality of pipes constituting the
剥取部14を構成する複数のアームは、回転軸12に関して対称となるように装着されている。アームの本数は特に限定されないが、本実施形態では、アームの本数を2本としている。各アームの先端部に装着されているブレード15の大きさ及び材質は、特に限定されず、内筒22の壁面に生成された氷を剥ぎ取ることができればよい。例えば、ブレードの先端で氷を掻き取り、または剥ぎ取ってもよい。なお、本実施形態におけるブレード15は、内筒22の全長(全高)に略等しい長さを有するステンレス製の板材からなり、内筒22に面する端面には複数の鋸歯15aが形成されている。
内筒22の壁面に生成された氷は、ブレード15によって剥ぎ取られると、フレークアイスとなる。フレークアイスは、フレークアイス排出口16から落下する。フレークアイス排出口16から落下したフレークアイスは、フレークアイス製造装置10の直下に配置されたフレークアイス貯留タンク34(図3参照)内に貯えられる。 The stripping
The plurality of arms constituting the stripping
When the ice generated on the wall surface of the inner cylinder 22 is peeled off by the
即ち、ドラム11の下方には、ブレード15によって剥ぎ取られたフレークアイスが落下する際に障害となる物がないため、ドラム11の下面はフレークアイスを排出するフレークアイス排出口16となる。 The
That is, since there is no obstacle below the
その一方で、LNGの排冷熱を利用しようとする場合には、以下のようなデメリットもあった。即ち、LNGの排冷熱の利用は、通常、LNG基地周辺の場所での連続的な利用に限定されていた。これは、LNGは輸送時に燃焼の危険性が伴うためである。つまり、LNGの排冷熱を利用する場合、LNGの排冷熱の供給を受ける側は、LNG基地から配管によってLNGの供給を受け、LNGの排冷熱を利用した後にガスを返送する必要があった。このため、LNG自体を遠隔地に輸送し、そこでバッチ的にLNGの排冷熱を利用できるようにすることは困難であった。
また、LNG基地周辺の場所で連続的にLNGの排冷熱を利用するためには固定化された設備が必要となるため、長期安定的なプロジェクトでないと対応できないというデメリットもあった。さらに、LNGと被冷却物との間における直接の熱交換は危険性を伴うというデメリットもあった。 When the exhaust cooling heat of LNG is used for the above-described application, it has the following merits as compared with the conventional cooling method by electric power or engine drive. That is, (1) less power is required, (2) the cold energy of LNG that is not being used can be used effectively, (3) a large generator is not required, and (4) pollution factors are low. (5) It has the merit that cost is reduced.
On the other hand, when trying to use the exhaust cooling heat of LNG, there were the following disadvantages. In other words, the use of LNG exhaust heat is normally limited to continuous use at locations around the LNG base. This is because LNG has a risk of combustion during transportation. That is, when using the LNG exhaust cooling heat, the side that receives the LNG exhaust cooling heat needs to return the gas after receiving the LNG supply from the LNG base through the piping and using the LNG exhaust cooling heat. For this reason, it has been difficult to transport the LNG itself to a remote location, where the LNG exhaust heat can be used batchwise.
In addition, since a fixed facility is required to continuously use the exhaust heat of LNG at a location around the LNG base, there is a demerit that it can only be handled for a long-term stable project. Furthermore, there is a demerit that direct heat exchange between the LNG and the object to be cooled is dangerous.
また、フレークアイス製造装置10は、特定の場所に固定させる必要はなく、車両、船舶、航空機等の移動体に搭載させることもできるため機動性を有する。さらに、フレークアイスという中間冷媒が存在するため、危険性を伴う、LNGと被冷却物との間における直接の熱交換は行われない。 However, when LNG is used as the refrigerant of the flake
In addition, the flake
このように、フレークアイス製造装置10は、従来の冷凍機の代替として冷熱を供給することができるだけでなく、LNGの排冷熱を利用してエネルギー効率を高めることもできる。即ち、コージェネレーション(cogeneration)システムを構築することも可能となる。 That is, by using an ultra-low temperature refrigerant of -160 degrees LNG as the refrigerant of the flake
Thus, the flake
Y=f(x3) ・・・(3)
即ち、フレークアイス製造装置10は、冷媒供給部29により冷媒クリアランス24に対し供給される冷媒の温度に応じて製氷速度が変化するように設計されている。
即ち、フレークアイス製造装置10は、内筒22の壁面の温度が低い程、内筒22の壁面に付着させたブラインをより速く凍結させることができる。つまり、フレークアイス製造装置10は、冷媒クリアランス24に供給される冷媒の温度が低い程、短時間で多くの氷を生成することができる。
具体的には例えば、冷媒クリアランス24に対し-160℃のLNGが供給された場合、内筒22の壁面の温度は急激に低下する。このため、フレークアイス製造装置10は、-150℃程度までの氷を短時間で大量に生成することができる。 The flake
Y = f (x3) (3)
That is, the flake
That is, the flake
Specifically, for example, when LNG at −160 ° C. is supplied to the
回転制御部27は、ギヤードモータ20の回転速度を調節することにより、回転軸12と共に回転する噴射部13及び剥取部14の回転速度を調節する。なお、回転制御部27が回転速度を制御する手法は特に限定されない。具体的には、例えばインバータによる制御手法を採用してもよい。 In the present embodiment, the refrigerant supplied to the
The
このように、フレークアイス製造装置10は、内筒22の壁面を構成する部材を任意に変更することにより、製氷速度を調節することができる。 Specifically, for example, when the wall surface (ice making surface) of the inner cylinder 22 is made of copper, the ice making speed can be increased by changing the wall surface of the inner cylinder 22 from copper to silver. On the other hand, the ice making speed can be reduced by changing the wall surface of the inner cylinder 22 from copper to pure iron or stainless steel.
Thus, the flake
図3は、図1のフレークアイス製造装置10を含むフレークアイス製造システム60の全体の概要を示すイメージ図である。 [Flake ice production system]
FIG. 3 is an image diagram showing an overview of the entire flake
ブライン貯留タンク30は、フレークアイスの原料となるブラインを貯える。ブライン貯留タンク30に貯えられたブラインは、ポンプ31を作動させることによりブライン配管32を介してロータリージョイント21に送給され、フレークアイス製造装置10によってフレークアイスになる。即ち、ロータリージョイント21に送給されたブラインは、ロータリージョイント21及び回転軸12に形成された竪穴12aに送給され、竪穴12aから、噴射部13を構成する各パイプに送給される。 The flake
The
なお、内筒22の壁面で凍結せずに流下したブラインは、ブライン貯留タンク30に貯えられ、ポンプ31を作動させることによりブライン配管32を介してロータリージョイント21に再び送給される。
フレークアイス貯留タンク34は、フレークアイス製造装置10の直下に配置され、フレークアイス製造装置10のフレークアイス排出口16から落下したフレークアイスを貯える。 The
Note that the brine that has flowed down without freezing on the wall surface of the inner cylinder 22 is stored in the
The flake
なお、ブラインの凍結点の調整手法は、特にこれに限定されない。例えば、次のような手法を採用することもできる。
即ち、ブライン貯留タンク30を複数個設け、凍結点が異なる複数種類のブラインを、数個のブライン貯留タンク30の夫々に貯留させる。そして、ブライン凍結点調整部37は、求められるフレークアイスの温度(例えば当該フレークアイスにより搬送される搬送品に対して、求められている保冷温度)に基づいて、所定種類のブラインを選択し、フレークアイス製造装置10に供給する。
このように、ブラインの凍結点を調節することにより、製造されるフレークアイスの温度を調節することができる。 The freezing
The method for adjusting the freezing point of the brine is not particularly limited to this. For example, the following method can also be employed.
That is, a plurality of
Thus, the temperature of the flake ice produced can be adjusted by adjusting the freezing point of the brine.
まず、冷媒供給部29は、冷媒クリアランス24に冷媒を供給し、内筒22の壁面の温度を塩水の凍結点より-10℃程度低くなるように設定する。これにより、内筒22の壁面に付着した塩水が凍結させることができる。
このとき、フレークアイス製造装置10における製氷速度は、内筒22の壁面として採用される部材の熱伝導率に応じて調節される。
また、フレークアイス製造装置10における製氷速度は、内筒22の壁面のうちブラインが付着する可能性がある部分の面積に応じて調節される。
また、フレークアイス製造装置10における製氷速度は、冷媒供給部29により供給される冷媒の温度に応じて調節される。 Next, operation | movement of the flake
First, the
At this time, the ice making speed in the flake
In addition, the ice making speed in the flake
Further, the ice making speed in the flake
回転軸12が回転すると、ポンプ31は、ブライン貯留タンク30からロータリージョイント21を介して回転軸12内にブラインである塩水を供給する。
回転軸内12に塩水が供給されると、回転軸12と共に回転する噴射部13は、内筒22の壁面に向けて塩水を噴射する。噴射部13から噴射された塩水は、内筒22の壁面に接触すると瞬時に凍結し氷が生成される。
なお、内筒22の壁面にブラインを自然流下させることにより付着させた場合、噴射によりブラインを付着させた場合に比べて、内筒22の壁面に付着するブラインの体積が大きいため、生成される氷の体積も大きくなる。このため、内筒22の壁面に溶け難い氷を生成させることができる。
このとき、回転制御部27は、回転軸12の回転速度を2~4rpmに制御する。なお、噴射部13の構成要素としてパイプではなくスプレーノズルを使用した場合には、回転制御部27は、回転軸12の回転速度を10~15rpmに制御する。
内筒22の壁面に生成された氷は、回転軸12と共に回転する剥取部14によって剥ぎ取られる。剥取部14によって剥ぎ取られた氷は、フレークアイスとして排出口16から落下する。排出口16から落下したフレークアイスは、フレークアイス製造装置10の直下に配置されたフレークアイス貯留タンク34内に貯えられる。
上述したように、氷とならず、内筒22の壁面を流下した塩水はブライン貯留タンク30に貯えられ、ポンプ31を作動させることによりブライン配管32を介してロータリージョイント21に再び送給される。なお、ブライン貯留タンク30内の塩水が少なくなった場合は、ブラインタンク33が、自身に貯えられている塩水がブライン貯留タンク30に供給する。 When the wall surface of the inner cylinder 22 is cooled, the
When the
When salt water is supplied to the inside 12 of the rotating shaft, the
When the brine is attached to the wall surface of the inner cylinder 22 by naturally flowing down, it is generated because the volume of the brine attached to the wall surface of the inner cylinder 22 is larger than when the brine is attached by injection. The ice volume also increases. For this reason, it is possible to generate ice that hardly melts on the wall surface of the inner cylinder 22.
At this time, the
The ice generated on the wall surface of the inner cylinder 22 is peeled off by the peeling
As described above, the salt water that does not become ice but flows down the wall surface of the inner cylinder 22 is stored in the
例えばブレインとして塩水が採用されているものとする。この場合、塩水が凍結する凍結点は、その溶質濃度のみに依存すると従来から考えられて来た。例えば溶質濃度が0.8%であれば、どんな場合でも-1.2℃で塩水が凍結すると従来から考えられて来た。
しかしながら、本出願人が、ブレインとして塩水を採用して、本実施形態のフレークアイス製造装置10を用いて、回転軸12の回転速度を変化させたところ、同一濃度の塩水から製造されるフレークアイスの温度が、回転数に応じて変化すること、特に回転数が低下すると温度が低下することを発見した。
この理由は、フレークアイスは、製氷熱を帯びた状態が融解し終わるまで維持されるためである。
これにより、ブラインの濃度を、冷蔵、冷凍対象にあわせた所望値に固定しつつ、フレークアイスの温度を調節することができる。 Here, the
For example, it is assumed that salt water is adopted as the brain. In this case, it has been conventionally considered that the freezing point at which salt water freezes depends only on the solute concentration. For example, it has been conventionally considered that when the solute concentration is 0.8%, salt water freezes at −1.2 ° C. in any case.
However, when the applicant adopts salt water as a brain and changes the rotation speed of the
The reason for this is that the flake ice is maintained until the ice-heated state is completely melted.
Thereby, the temperature of flake ice can be adjusted, fixing the density | concentration of a brine to the desired value according to refrigeration and freezing object.
次に、上述したブラインとフレークアイスとを材料とする氷スラリーを製造する手法の一例を説明する。氷スラリーについては、予め用意された複数種類のブラインを材料とすることにより、要求される保冷温度と保冷時間とに対応させたもの製造することができる。
なお、ブラインは塩水であり、被保冷物は生鮮海産物であることとし、また、氷スラリーの中に直接被保冷物である生鮮海産物を入れることにより瞬間凍結することを想定して説明する。 [Ice slurry manufacturing method]
Next, an example of a method for producing an ice slurry using the above-described brine and flake ice as materials will be described. The ice slurry can be manufactured according to the required cold insulation temperature and cold preservation time by using a plurality of types of brine prepared in advance.
It is assumed that the brine is salt water, the to-be-cooled product is a fresh seafood, and that the frozen seafood is immediately frozen by placing the fresh to-be-cooled product directly in the ice slurry.
塩水の溶質濃度が13.6%未満の場合、製造した氷スラリーによる生鮮海産物の凍結速度は遅くなる。一方、塩水の溶質濃度が23.1%を超える場合、塩分が結晶として析出するため、塩水の飽和凍結点が上昇する。
なお、生鮮海産物を直接氷スラリーに入れた場合、氷スラリーの溶質濃度が高くても、生鮮海産物の表面が瞬間凍結して氷結するため、生鮮海産物中に塩分が侵入することはない。 In order to instantly freeze fresh seafood, the solute concentration of salt water, which is the raw material of ice slurry, is set to be significantly higher than before. The theoretical saturation freezing point of salt water having a solute concentration of 13.6% is −9.8 ° C., and the theoretical saturation freezing point of salt water having a solute concentration of 23.1% is −21.2 ° C.
When the solute concentration of salt water is less than 13.6%, the freezing rate of fresh seafood by the produced ice slurry becomes slow. On the other hand, when the solute concentration of the salt water exceeds 23.1%, the salt content is precipitated as crystals, so that the saturation freezing point of the salt water increases.
When the fresh seafood is directly put into the ice slurry, even if the solute concentration of the ice slurry is high, the surface of the fresh seafood freezes and freezes, so that the salt does not enter the fresh seafood.
従って、氷スラリーの状態を変動させないようにするためには、混合するフレークアイスと塩水の溶質濃度を同程度とすることが望ましい。 It is preferable that the solute concentrations of the flake ice and the salt water to be mixed for producing the ice slurry are approximately the same (concentration difference within several percent). When the solute concentration of the flake ice is higher than the solute concentration of the salt water, the temperature of the flake ice is lower than the saturation freezing point of the salt water, so that the water freezes immediately after mixing the salt water having a low solute concentration. On the other hand, when the solute concentration of the flake ice is lower than the solute concentration of the salt water, since the saturation freezing point of the salt water is lower than the saturation freezing point of the flake ice, the flake ice melts and the temperature of the ice slurry decreases.
Therefore, in order not to change the state of the ice slurry, it is desirable that the solute concentrations of the flake ice and the salt water to be mixed are approximately the same.
本実施形態では、製造された氷スラリーの温度は-9.8℃~-21.2℃となる。製造されたフレークアイスと混合する塩水の温度は、常温もしくはそれを下回る温度とする。なお、塩水の温度が低い程、製氷効率は高くなる。 That is, when the brine is salt water, the flake ice produced by the flake
In this embodiment, the temperature of the produced ice slurry is −9.8 ° C. to −21.2 ° C. The temperature of the salt water mixed with the manufactured flake ice is set to room temperature or lower. In addition, ice-making efficiency becomes high, so that the temperature of salt water is low.
このように、ブラインの濃度や、混合するフレークアイスとブラインの質量比を調整することにより、複数種類の温度の氷スラリーを製造することができる。 When the brine is other than salt water, the concentration of the brine and the mass ratio of the mixed flake ice and brine are adjusted so that the temperature of the produced ice slurry becomes the required temperature.
Thus, by adjusting the concentration of the brine and the mass ratio of the flake ice and the brine to be mixed, it is possible to produce an ice slurry having a plurality of types of temperatures.
また、本発明の製氷装置により生成される氷は、上記(a)及び(b)の条件を満たす、溶質を含有する水溶液を含む液体の氷であることが望ましいが、(a)及び(b)の一方又は双方の条件を満たさない氷であってもよい。即ち、氷と水との溶質濃度が異なる氷スラリーを用いて被保冷物の保冷を行ってもよい。 For example, the ice making device of the present invention does not need to be configured as the flake
The ice produced by the ice making apparatus of the present invention is preferably liquid ice containing an aqueous solution containing a solute that satisfies the above conditions (a) and (b). Ice) that does not satisfy one or both of the conditions. That is, the object to be cooled may be kept cold using ice slurries having different solute concentrations of ice and water.
即ち、被保冷物を輸送する場合には、輸送対象となる被保冷物の量に比例して被保冷物を冷却するための氷スラリーが必要となるが、当然ながら被保冷物を運搬するための車両、船舶、航空機には最大積載量が設けられている。この最大積載量の範囲内で、被保冷物の積載量を最大化させるためには、冷却効果を維持できる範囲内で、氷スラリーの量を最小化させる必要がある。このとき、コンパクト化されたフレークアイス製造装置10であれば、積載される保冷物全体の体積に対して少ない体積で済むため、最大積載量の範囲内で、被保冷物の積載量を最大化させることが可能となる。 In addition, according to the flake
That is, when transporting a cold object, an ice slurry for cooling the cold object is required in proportion to the amount of the cold object to be transported. Vehicles, ships, and aircraft have maximum loading capacity. In order to maximize the load amount of the object to be cooled within the range of the maximum load amount, it is necessary to minimize the amount of ice slurry within the range in which the cooling effect can be maintained. At this time, if the flake
ライナーを内筒22の壁面に装着させる方法は特に限定されない。例えばライナーと、ライナーに接する内筒22の壁面との夫々に螺旋状の溝を設け、ピッチの粗いネジのような形状とすることにより、ライナーをドラム11内にねじ込むようにして内筒22の壁面に装着させてもよい。また、ライナーを一旦冷却して体積を収縮させたうえで内筒22の壁面に装着させてもよい。この場合、ライナーの温度が常温に戻ると、ライナーの体積が膨張するため、内筒22の壁面にライナーを密着させ固定させることができる。
なお、内筒22の壁面にライナーを装着させる構成とした場合、サンドペーパー等を用いて内筒22の壁面とライナーとが密着する面に細かい凹凸を施してもよい。これにより、内筒22の壁面とライナーとが密着する面との間に一定の摩擦力を生じさせることができるため、内筒22の壁面からライナーが滑って脱落する事故を未然に防ぐこともできる。 The
The method for attaching the liner to the wall surface of the inner cylinder 22 is not particularly limited. For example, a spiral groove is provided in each of the liner and the wall surface of the inner cylinder 22 in contact with the liner so that the liner is screwed into the
In addition, when it is set as the structure which attaches a liner to the wall surface of the inner cylinder 22, you may give fine unevenness | corrugation to the surface where the wall surface of the inner cylinder 22 and a liner contact | adhere using sandpaper etc. As a result, a constant frictional force can be generated between the wall surface of the inner cylinder 22 and the surface where the liner is in close contact, so that it is possible to prevent an accident in which the liner slips from the wall surface of the inner cylinder 22 and falls off. it can.
即ち、本発明が適用される製氷装置(例えば図1のフレークアイス製造装置10)は、
製氷面(例えば図1の内筒22の壁面)と、前記製氷面を冷却する冷却部(例えば図1の内筒22)とを有し、冷却された前記製氷面に付着したブラインを凍結させることにより氷を生成する製氷部(例えば図1の内筒22、外筒23、及び冷媒クリアランス24)と、
前記製氷面に対し、前記ブラインを付着させることにより供給するブライン供給部(例えば図1の噴射部13)と、
前記製氷部により生成された前記氷を回収する回収部(例えば図1の剥取部14)と、
を備え、
前記製氷部における、単位時間当たりの前記氷の生成量を示す製氷速度をYとし、前記製氷面の熱伝導率をx1としたときに、次式(1)が成り立つように設計されている。
Y=f(x1) ・・・(1)
これにより、より効率良く冷却能の高い氷を生成することを可能とする技術を実現させることができる。 In summary, the ice making apparatus to which the present invention is applied only needs to have the following configuration, and can take various embodiments.
That is, the ice making device to which the present invention is applied (for example, the flake
It has an ice making surface (for example, the wall surface of the inner cylinder 22 in FIG. 1) and a cooling unit (for example, the inner cylinder 22 in FIG. 1) for cooling the ice making surface, and freezes the brine adhering to the cooled ice making surface. An ice making part (for example, the inner cylinder 22, the outer cylinder 23, and the
A brine supply unit (for example, the
A collecting unit (for example, the stripping
With
In the ice making section, when the ice making speed indicating the amount of ice produced per unit time is Y and the thermal conductivity of the ice making surface is x1, the following equation (1) is established.
Y = f (x1) (1)
As a result, it is possible to realize a technique that makes it possible to more efficiently generate ice with high cooling ability.
これにより、より効率良く冷却能の高い氷を生成させることができる。 The ice making surface can be made of copper.
Thereby, ice with high cooling ability can be generated more efficiently.
Y=f(x2) ・・・(2)
これにより、前記製氷面のうち前記ブラインが付着される可能性がある部分の面積を調節させることにより製氷速度を調節させることができる。 Further, when the ice making speed is Y and the area of the ice making surface where the brine may be attached is x2, the following equation (2) can be established.
Y = f (x2) (2)
Thus, the ice making speed can be adjusted by adjusting the area of the ice making surface where the brine may adhere.
前記製氷速度をYとし、前記製氷面の温度をx3としたときに、次式(3)が成り立つように設計されることができる。
Y=f(x3) ・・・(3)
これにより、冷媒が選択され前記製氷面の温度が調節されることにより、製氷速度を調節させることができる。 The cooling unit further includes a refrigerant supply unit (for example, the
When the ice making speed is Y and the temperature of the ice making surface is x3, the following equation (3) can be established.
Y = f (x3) (3)
Thus, the ice making speed can be adjusted by selecting the refrigerant and adjusting the temperature of the ice making surface.
前記ブラインを、前記製氷面に噴射することにより付着させることができる。
また、前記ブライン供給部は、
前記ブラインを、前記製氷面に自然流下させることにより付着させることができる。
これにより、前記製氷面に前記ブラインを付着させる手法に応じて製氷速度を調節させることができる。 The brine supply unit
The brine can be deposited by spraying onto the ice making surface.
The brine supply unit
The brine can be adhered to the ice making surface by naturally flowing down.
Thereby, the ice making speed can be adjusted according to the method of attaching the brine to the ice making surface.
前記冷媒は、LNGとすることができる。
これにより、超低温の前記氷であっても効率良く生成されることが可能となるため、幅広く要求される保冷温度にマッチさせたフレークアイスを容易に製造することができる。 The ice making surface is made of copper,
The refrigerant can be LNG.
As a result, even the ultra-low temperature ice can be efficiently generated, and therefore flake ice matched with a wide range of required cold insulation temperatures can be easily produced.
前記製氷面を覆うライナーをさらに備え、
前記ライナーは交換可能とすることができる。
これにより、前記製氷部全体を交換するような大掛かりな修繕作業を行うことなく、ライナーのみを交換するだけで前記製氷面の品質を維持させることができる。 In addition, the ice making part
Further comprising a liner covering the ice making surface,
The liner can be replaceable.
Thereby, the quality of the ice making surface can be maintained by replacing only the liner without performing a large repair work such as replacing the entire ice making unit.
前記製氷部は、
前記製氷面を有する内筒と、当該内筒を囲繞する外筒と、当該内筒と当該外筒との間に形成されるクリアランスとを含むドラムと、前記クリアランスに対して冷媒を供給する冷媒供給部をさらに備え、
前記ブライン供給部は、
前記ドラムの中心軸を軸として回転する回転軸と共に回転し、前記内筒の前記製氷面に向けて前記ブラインを噴射する噴射部をさらに備え、
前記回収部は、
前記噴射部から噴射された前記ブラインが、前記クリアランスに供給された前記冷媒により冷却された前記内筒の内面に付着し、その結果として生成された氷を剥ぎ取る剥取部をさらに備え、
前記製氷部における、単位時間当たりの前記氷の生成量を示す生成速度をYとし、前記製氷面の熱伝導率をx1としたときに、前記式(1)が成り立つように設計されることができる。
これにより、より効率良く冷却能の高い氷を生成させることができる。 The flake ice manufacturing apparatus to which the present invention is applied includes the ice making unit, the brine supply unit, and the recovery unit.
The ice making part is
A drum including an inner cylinder having the ice making surface, an outer cylinder surrounding the inner cylinder, a clearance formed between the inner cylinder and the outer cylinder, and a refrigerant that supplies refrigerant to the clearance And further comprising a supply unit,
The brine supply unit
A rotation unit that rotates around a central axis of the drum, and further includes an injection unit that injects the brine toward the ice making surface of the inner cylinder;
The collection unit
The brine jetted from the jetting unit is further attached to the inner surface of the inner cylinder cooled by the refrigerant supplied to the clearance, and further comprises a stripping unit for stripping off the ice generated as a result,
In the ice making section, when the production rate indicating the amount of ice produced per unit time is Y and the thermal conductivity of the ice making surface is x1, the design (1) is established. it can.
Thereby, ice with high cooling ability can be generated more efficiently.
また、前記製氷速度をYとし、前記製氷面のうち前記ブラインが付着される可能性がある部分の面積をx2としたときに、前記式(2)が成り立つように設計されることができる。
また、前記製氷速度をYとし、前記製氷面の温度をx3としたときに、前記式(3)が成り立つように設計されることができる。 Further, the thermal conductivity at 20 ° C. of the ice making surface can be 70 W / mK or more.
Further, when the ice making speed is Y and the area of the ice making surface where the brine is likely to be attached is x2, it can be designed so that the formula (2) is satisfied.
Moreover, when the said ice making speed is set to Y and the temperature of the said ice making surface is set to x3, it can design so that the said Formula (3) may be formed.
前記ブラインを、前記製氷面に自然流下させることにより付着させることができる。
また、前記冷媒は、LNGとすることができる。
また、前記製氷部は、
前記製氷面を覆うライナーをさらに備え、
前記ライナーは交換可能とすることができる。 The brine supply unit
The brine can be adhered to the ice making surface by naturally flowing down.
The refrigerant may be LNG.
In addition, the ice making part
Further comprising a liner covering the ice making surface,
The liner can be replaceable.
これにより、任意の温度のフレークアイスを効率良く製造することができるため、フレークアイス製造装置自体のサイズをよりコンパクト化させることができる。このため、例えば被保冷物を運搬するための車両、船舶、航空機において、積載される保冷物全体の体積に対し、少ない体積のフレークアイス製造装置を搭載させることができる。 Moreover, the flake ice manufacturing apparatus of 1 aspect of this invention can be mounted in a moving body.
Thereby, since flake ice of arbitrary temperature can be manufactured efficiently, the size of flake ice manufacturing apparatus itself can be made more compact. For this reason, for example, in a vehicle, a ship, and an aircraft for transporting the object to be cooled, a flake ice manufacturing apparatus having a smaller volume than the volume of the entire cold object to be loaded can be mounted.
Claims (18)
- 製氷面と、前記製氷面を冷却する冷却部とを有し、冷却された前記製氷面に付着したブラインを凍結させることにより氷を生成する製氷部と、
前記製氷面に対し、前記ブラインを付着させることにより供給するブライン供給部と、
前記製氷部により生成された前記氷を回収する回収部と、
を備え、
前記製氷部における、単位時間当たりの前記氷の生成量を示す製氷速度をYとし、前記製氷面の熱伝導率をx1としたときに、次式(1)が成り立つように設計されている、
製氷装置。
Y=f(x1) ・・・(1) An ice making surface, and a cooling unit that cools the ice making surface; and an ice making unit that generates ice by freezing brine attached to the cooled ice making surface;
A brine supply unit for supplying the brine by attaching the brine to the ice making surface;
A recovery unit for recovering the ice generated by the ice making unit;
With
When the ice making speed indicating the amount of ice produced per unit time in the ice making unit is Y and the thermal conductivity of the ice making surface is x1, the following equation (1) is established.
Ice making equipment.
Y = f (x1) (1) - 前記製氷面の20℃における熱伝導率が70W/mK以上である、
請求項1に記載の製氷装置。 The thermal conductivity at 20 ° C. of the ice making surface is 70 W / mK or more.
The ice making device according to claim 1. - 前記製氷速度をYとし、前記製氷面のうち前記ブラインが付着される可能性がある部分の面積をx2としたときに、次式(2)が成り立つように設計されている、
請求項1または2に記載の製氷装置。
Y=f(x2) ・・・(2) When the ice making speed is Y and the area of the ice making surface where the brine may be attached is x2, the following formula (2) is established.
The ice making device according to claim 1 or 2.
Y = f (x2) (2) - 前記冷却部に対し、前記製氷面を冷却させるために、所定の冷媒を供給する冷媒供給部をさらに備え、
前記製氷速度をYとし、前記製氷面の温度をx3としたときに、次式(3)が成り立つように設計されている、
請求項1乃至3のうちいずれか1項に記載の製氷装置。
Y=f(x3) ・・・(3) In order to cool the ice making surface to the cooling unit, further comprising a refrigerant supply unit for supplying a predetermined refrigerant,
When the ice making speed is Y and the temperature of the ice making surface is x3, the following equation (3) is established.
The ice making device according to any one of claims 1 to 3.
Y = f (x3) (3) - 前記ブライン供給部は、
前記ブラインを、前記製氷面に噴射することにより付着させる、
請求項1乃至4のうちいずれか1項に記載の製氷装置。 The brine supply unit
The brine is deposited by spraying on the ice making surface;
The ice making device according to any one of claims 1 to 4. - 前記ブライン供給部は、
前記ブラインを、前記製氷面に自然流下させることにより付着させる、
請求項1乃至4のうちいずれか1項に記載の製氷装置。 The brine supply unit
The brine is allowed to adhere to the ice making surface by allowing it to flow down naturally.
The ice making device according to any one of claims 1 to 4. - 前記冷媒は、LNGである、
請求項4に記載の製氷装置。 The refrigerant is LNG.
The ice making device according to claim 4. - 前記製氷部は、
前記製氷面を覆うライナーをさらに備え、
前記ライナーは交換可能である、
請求項1乃至7のうちいずれか1項に記載の製氷装置。 The ice making part is
Further comprising a liner covering the ice making surface,
The liner is replaceable,
The ice making device according to any one of claims 1 to 7. - 請求項1に記載の前記製氷部と、請求項1に記載のブライン供給部と、請求項1に記載の前記回収部とを備えるフレークアイス製造装置であって、
前記製氷部は、
前記製氷面を有する内筒と、当該内筒を囲繞する外筒と、当該内筒と当該外筒との間に形成されるクリアランスとを含むドラムと、前記クリアランスに対して冷媒を供給する冷媒供給部
をさらに備え、
前記ブライン供給部は、
前記ドラムの中心軸を軸として回転する回転軸と共に回転し、前記内筒の前記製氷面に向けて前記ブラインを噴射する噴射部
をさらに備え、
前記回収部は、
前記噴射部から噴射された前記ブラインが、前記クリアランスに供給された前記冷媒により冷却された前記内筒の内面に付着し、その結果として生成された氷を剥ぎ取る剥取部
をさらに備え、
前記製氷部における、単位時間当たりの前記氷の生成量を示す生成速度をYとし、前記製氷面の熱伝導率をx1としたときに、前記式(1)が成り立つように設計されている、
フレークアイス製造装置。 A flake ice production apparatus comprising: the ice making unit according to claim 1; the brine supply unit according to claim 1; and the recovery unit according to claim 1.
The ice making part is
A drum including an inner cylinder having the ice making surface, an outer cylinder surrounding the inner cylinder, a clearance formed between the inner cylinder and the outer cylinder, and a refrigerant that supplies refrigerant to the clearance A supply section,
The brine supply unit
An injection unit that rotates together with a rotation shaft that rotates about the central axis of the drum, and that injects the brine toward the ice making surface of the inner cylinder;
The collection unit
The brine jetted from the jetting unit is further attached to the inner surface of the inner cylinder cooled by the refrigerant supplied to the clearance, and further comprises a stripping unit for stripping off the ice generated as a result,
In the ice making part, when the production rate indicating the production amount of the ice per unit time is Y and the thermal conductivity of the ice making surface is x1, the above formula (1) is established.
Flakes ice making equipment. - 前記製氷面の20℃における熱伝導率が70W/mK以上である、
請求項9に記載のフレークアイス製造装置。 The thermal conductivity at 20 ° C. of the ice making surface is 70 W / mK or more.
The flake ice manufacturing apparatus of Claim 9. - 前記製氷速度をYとし、前記製氷面のうち前記ブラインが付着される可能性がある部分の面積をx2としたときに、前記式(2)が成り立つように設計されている、
請求項9または10に記載のフレークアイス製造装置。 When the ice making speed is Y and the area of the ice making surface where the brine may be attached is x2, the above formula (2) is established.
The flake ice manufacturing apparatus of Claim 9 or 10. - 前記冷却部に対し、前記製氷面を冷却させるために、所定の冷媒を供給する冷媒供給部をさらに備え、
前記製氷速度をYとし、前記製氷面の温度をx3としたときに、前記式(3)が成り立つように設計されている、
請求項9乃至11のうちいずれか1項に記載のフレークアイス製造装置。 In order to cool the ice making surface to the cooling unit, further comprising a refrigerant supply unit for supplying a predetermined refrigerant,
When the ice making speed is Y and the temperature of the ice making surface is x3, the above formula (3) is established.
The flake ice manufacturing apparatus of any one of Claims 9 thru | or 11. - 前記ブライン供給部は、
前記ブラインを、前記製氷面に噴射することにより付着させる、
請求項9乃至12のうちいずれか1項に記載のフレークアイス製造装置。 The brine supply unit
The brine is deposited by spraying on the ice making surface;
The flake ice manufacturing apparatus of any one of Claims 9 thru | or 12. - 前記ブライン供給部は、
前記ブラインを、前記製氷面に自然流下させることにより付着させる、
請求項9乃至12のうちいずれか1項に記載のフレークアイス製造装置。 The brine supply unit
The brine is allowed to adhere to the ice making surface by allowing it to flow down naturally.
The flake ice manufacturing apparatus of any one of Claims 9 thru | or 12. - 前記冷媒は、LNGである、
請求項9に記載のフレークアイス製造装置。 The refrigerant is LNG.
The flake ice manufacturing apparatus of Claim 9. - 前記製氷部は、
前記製氷面を覆うライナーをさらに備え、
前記ライナーは交換可能である、
請求項9乃至15のうちいずれか1項に記載のフレークアイス製造装置。 The ice making part is
Further comprising a liner covering the ice making surface,
The liner is replaceable,
The flake ice manufacturing apparatus of any one of Claims 9 thru | or 15. - 請求項9乃至16のうちいずれか1項に記載のフレークアイス製造装置を用いたフレークアイス製造方法。 A flake ice production method using the flake ice production apparatus according to any one of claims 9 to 16.
- 請求項9乃至17のうちいずれか1項に記載のフレークアイス製造装置を搭載する移動体。 A moving body on which the flake ice manufacturing apparatus according to any one of claims 9 to 17 is mounted.
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2018006079A MX2018006079A (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method. |
KR1020187017429A KR20180091848A (en) | 2015-11-19 | 2016-11-18 | Deicing device, moving body, flake ice making device and flake ice making method |
JP2017538270A JP6243092B2 (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, flake ice production method |
RU2018121638A RU2695458C1 (en) | 2015-11-19 | 2016-11-18 | Device for production of ice, movable object, device for production of flake ice and method for production of flake ice |
SG11201803910WA SG11201803910WA (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method |
US15/777,021 US20180340721A1 (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method |
AU2016358284A AU2016358284A1 (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method |
CA3004252A CA3004252A1 (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method |
EP16866462.1A EP3378320A4 (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method |
BR112018010064-1A BR112018010064A2 (en) | 2015-11-19 | 2016-11-18 | An ice-making device, a mobile, a flakes ice manufacture device, a flakes ice manufacturing method |
CN201680067400.1A CN108463111A (en) | 2015-11-19 | 2016-11-18 | Ice maker, moving body, flake ice manufacturing device and flake ice manufacturing method |
IL259336A IL259336A (en) | 2015-11-19 | 2018-05-14 | Ice making device, moving body, flake ice production device, and flake ice production method |
PH12018501063A PH12018501063A1 (en) | 2015-11-19 | 2018-05-17 | Ice making device, moving body, flake ice production device, and flake ice production method |
ZA2018/04015A ZA201804015B (en) | 2015-11-19 | 2018-06-15 | Ice making device, moving body, flake ice production device, and flake ice production method |
Applications Claiming Priority (20)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015226589 | 2015-11-19 | ||
JP2015-226589 | 2015-11-19 | ||
JP2016-041189 | 2016-03-03 | ||
JP2016041189 | 2016-03-03 | ||
JP2016-103639 | 2016-05-24 | ||
JP2016103014 | 2016-05-24 | ||
JP2016103638 | 2016-05-24 | ||
JP2016-103013 | 2016-05-24 | ||
JP2016-103014 | 2016-05-24 | ||
JP2016-103638 | 2016-05-24 | ||
JP2016103012 | 2016-05-24 | ||
JP2016103640 | 2016-05-24 | ||
JP2016103639 | 2016-05-24 | ||
JP2016-103637 | 2016-05-24 | ||
JP2016103013 | 2016-05-24 | ||
JP2016103637 | 2016-05-24 | ||
JP2016-103012 | 2016-05-24 | ||
JP2016-103640 | 2016-05-24 | ||
JP2016132615A JP6175168B1 (en) | 2015-11-19 | 2016-07-04 | Ice, refrigerant, method for producing ice, and method for producing object to be cooled |
JP2016-132615 | 2016-07-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017086462A1 true WO2017086462A1 (en) | 2017-05-26 |
Family
ID=58718897
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/084322 WO2017086464A1 (en) | 2015-11-19 | 2016-11-18 | Cold storage unit, moving body, ice slurry supply system, transport system for cold storage articles, cold storage method for cold storage articles, and transport method for cold storage articles |
PCT/JP2016/084320 WO2017086462A1 (en) | 2015-11-19 | 2016-11-18 | Ice making device, moving body, flake ice production device, and flake ice production method |
PCT/JP2016/084319 WO2017086461A1 (en) | 2015-11-19 | 2016-11-18 | Ice, refrigerant, ice production method, method for producing cooled article, method for producing refrigerated article of plant/animal or portion thereof, refrigerating material for plant/animal or portion thereof, method for producing frozen fresh plant/animal or portion thereof, defrosted article or processed article thereof, and freezing material for fresh plant/animal or portion thereof |
PCT/JP2016/084321 WO2017086463A1 (en) | 2015-11-19 | 2016-11-18 | Flake ice production device, flake ice production system, flake ice production method, and moving body |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/084322 WO2017086464A1 (en) | 2015-11-19 | 2016-11-18 | Cold storage unit, moving body, ice slurry supply system, transport system for cold storage articles, cold storage method for cold storage articles, and transport method for cold storage articles |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/084319 WO2017086461A1 (en) | 2015-11-19 | 2016-11-18 | Ice, refrigerant, ice production method, method for producing cooled article, method for producing refrigerated article of plant/animal or portion thereof, refrigerating material for plant/animal or portion thereof, method for producing frozen fresh plant/animal or portion thereof, defrosted article or processed article thereof, and freezing material for fresh plant/animal or portion thereof |
PCT/JP2016/084321 WO2017086463A1 (en) | 2015-11-19 | 2016-11-18 | Flake ice production device, flake ice production system, flake ice production method, and moving body |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA3004245C (en) |
MY (1) | MY187613A (en) |
TW (1) | TWI747517B (en) |
WO (4) | WO2017086464A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109479949A (en) * | 2018-11-22 | 2019-03-19 | 李爱芳 | Fresh aquatic product preservation method and equipment |
JP2019207046A (en) * | 2018-05-28 | 2019-12-05 | ブランテック株式会社 | Ice slurry manufacturing device and refrigeration system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107975994B (en) * | 2017-12-25 | 2023-10-31 | 中能绿色精灵(北京)科技有限公司 | Gas jet ice slurry cold accumulation device and cold accumulation method thereof |
JP7153302B2 (en) * | 2018-02-22 | 2022-10-14 | ブランテックインターナショナル株式会社 | flake ice making equipment |
JP7148112B2 (en) * | 2018-05-28 | 2022-10-05 | ブランテックインターナショナル株式会社 | Refrigeration equipment and refrigeration system |
US20200033041A1 (en) * | 2018-07-25 | 2020-01-30 | James Chun Koh | Apparatus for making fine ice with salinity |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0656665U (en) * | 1992-12-28 | 1994-08-05 | アイスマン製氷機工業株式会社 | Ice machine |
JP2002115945A (en) | 2000-10-05 | 2002-04-19 | Mayekawa Mfg Co Ltd | Method for keeping freshness of fresh food, method for producing salty ice used therefor, and system for keeping freshness of fresh food |
JP2002162136A (en) * | 2000-11-24 | 2002-06-07 | Tokyo Inst Of Technol | Ice making method and ice plant |
JP2003056953A (en) * | 2001-08-08 | 2003-02-26 | Hoshizaki Electric Co Ltd | Ice making machine |
JP2013036628A (en) * | 2011-08-03 | 2013-02-21 | Izui Tekkosho:Kk | Device for making slurry ice |
JP2016103637A (en) | 2014-11-27 | 2016-06-02 | ソイテック | Method for laminating two substrates |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5484045A (en) * | 1977-12-14 | 1979-07-04 | Seiwa Kasei Kk | Freezing of brine of food |
JPH0623637B2 (en) * | 1985-03-11 | 1994-03-30 | 日立冷熱株式会社 | Cooling room temperature control method |
JPS61247337A (en) * | 1985-04-25 | 1986-11-04 | Takeshi Hayashi | Method for killing and cooling live fish and apparatus therefor |
JPS623736A (en) * | 1985-06-29 | 1987-01-09 | Sakai Tadaaki | Method of rapid freezing of fish and shellfish |
JPS63178786U (en) * | 1987-05-08 | 1988-11-18 | ||
JPH0714747B2 (en) * | 1990-05-28 | 1995-02-22 | 三井造船株式会社 | Refrigerated container |
JPH109734A (en) * | 1996-06-25 | 1998-01-16 | Mitsui Eng & Shipbuild Co Ltd | Manufacture of spherical ice |
JP2000354454A (en) | 1999-06-14 | 2000-12-26 | San Ceiling Kk | Retention of freshness of fish or the like |
JP2001066030A (en) * | 1999-08-30 | 2001-03-16 | Sanden Corp | Cold insulation cabinet |
JP2006158301A (en) | 2004-12-08 | 2006-06-22 | Marufuku Suisan Kk | Method for retaining freshness of fresh fish |
JP2007040548A (en) * | 2005-07-29 | 2007-02-15 | Kajima Corp | Method and device for manufacturing salt water soft ice |
JP4049221B2 (en) * | 2005-12-02 | 2008-02-20 | 中国電機製造株式会社 | Electrolytic seawater ice generation system, electrolytic seawater generation device, and fresh fish preservation method |
GB2485864B (en) * | 2011-07-14 | 2013-05-29 | Ide Technologies Ltd | Vacuum ice maker (vim) with an integrated water vapor depostion process |
BE1020620A5 (en) * | 2012-04-13 | 2014-02-04 | Franz Colruyt Ets | |
WO2014174535A1 (en) * | 2013-04-23 | 2014-10-30 | Skaginn Hf. | Processing under cooled whole fish |
-
2016
- 2016-11-18 TW TW109132830A patent/TWI747517B/en active
- 2016-11-18 WO PCT/JP2016/084322 patent/WO2017086464A1/en active Application Filing
- 2016-11-18 WO PCT/JP2016/084320 patent/WO2017086462A1/en active Application Filing
- 2016-11-18 CA CA3004245A patent/CA3004245C/en active Active
- 2016-11-18 WO PCT/JP2016/084319 patent/WO2017086461A1/en active Application Filing
- 2016-11-18 MY MYPI2018701858A patent/MY187613A/en unknown
- 2016-11-18 WO PCT/JP2016/084321 patent/WO2017086463A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0656665U (en) * | 1992-12-28 | 1994-08-05 | アイスマン製氷機工業株式会社 | Ice machine |
JP2002115945A (en) | 2000-10-05 | 2002-04-19 | Mayekawa Mfg Co Ltd | Method for keeping freshness of fresh food, method for producing salty ice used therefor, and system for keeping freshness of fresh food |
JP2002162136A (en) * | 2000-11-24 | 2002-06-07 | Tokyo Inst Of Technol | Ice making method and ice plant |
JP2003056953A (en) * | 2001-08-08 | 2003-02-26 | Hoshizaki Electric Co Ltd | Ice making machine |
JP2013036628A (en) * | 2011-08-03 | 2013-02-21 | Izui Tekkosho:Kk | Device for making slurry ice |
JP2016103637A (en) | 2014-11-27 | 2016-06-02 | ソイテック | Method for laminating two substrates |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019207046A (en) * | 2018-05-28 | 2019-12-05 | ブランテック株式会社 | Ice slurry manufacturing device and refrigeration system |
WO2019230232A1 (en) * | 2018-05-28 | 2019-12-05 | ブランテック株式会社 | Ice slurry manufacturing device and refigeration system |
JP7370555B2 (en) | 2018-05-28 | 2023-10-30 | ブランテックインターナショナル株式会社 | Ice slurry production equipment and refrigeration system |
CN109479949A (en) * | 2018-11-22 | 2019-03-19 | 李爱芳 | Fresh aquatic product preservation method and equipment |
Also Published As
Publication number | Publication date |
---|---|
CA3004245A1 (en) | 2017-05-26 |
CA3004245C (en) | 2022-03-15 |
MY187613A (en) | 2021-10-04 |
TWI747517B (en) | 2021-11-21 |
TW202110330A (en) | 2021-03-16 |
WO2017086461A1 (en) | 2017-05-26 |
WO2017086463A1 (en) | 2017-05-26 |
WO2017086464A1 (en) | 2017-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6243092B2 (en) | Ice making device, moving body, flake ice production device, flake ice production method | |
WO2017086462A1 (en) | Ice making device, moving body, flake ice production device, and flake ice production method | |
JP2018017490A (en) | Flake ice manufacturing device, process of manufacture of ice, refrigerant and ice, process of manufacture of object to be cooled, process of manufacture of animal plant or object to be refrigerated for part thereof, process of manufacture of animal plant or its refrigeration agent, fresh animal plant to be frozen or its refrigeration agent, thawing object or its processed product and fresh animal plant or its freezing agent for the part thereof | |
CN110637203B (en) | State change control device and state change control method | |
JP2018059694A (en) | Ice making device | |
WO2018110506A1 (en) | Production device and production method for flake ice | |
JP6905739B2 (en) | Cooling device and cooling method | |
JP6998577B2 (en) | Defrosting device and defrosting method | |
WO2019077756A1 (en) | Flake-ice making device and flake-ice making method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16866462 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017538270 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 3004252 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11201803910W Country of ref document: SG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 000969-2018 Country of ref document: PE Ref document number: 259336 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2018/006079 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12018501063 Country of ref document: PH Ref document number: 15777021 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2016358284 Country of ref document: AU Date of ref document: 20161118 Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112018010064 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 20187017429 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016866462 Country of ref document: EP Ref document number: 1020187017429 Country of ref document: KR Ref document number: 2018121638 Country of ref document: RU |
|
ENP | Entry into the national phase |
Ref document number: 2016866462 Country of ref document: EP Effective date: 20180619 |
|
ENP | Entry into the national phase |
Ref document number: 112018010064 Country of ref document: BR Kind code of ref document: A2 Effective date: 20180517 |