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WO1985003996A1 - Procede et appareil pour fabriquer de la glace - Google Patents

Procede et appareil pour fabriquer de la glace Download PDF

Info

Publication number
WO1985003996A1
WO1985003996A1 PCT/EP1985/000085 EP8500085W WO8503996A1 WO 1985003996 A1 WO1985003996 A1 WO 1985003996A1 EP 8500085 W EP8500085 W EP 8500085W WO 8503996 A1 WO8503996 A1 WO 8503996A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
enclosure
ice
brine
scraper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1985/000085
Other languages
English (en)
Inventor
Mikhail Mogilevsky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solmecs Corp NV
Original Assignee
Solmecs Corp NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solmecs Corp NV filed Critical Solmecs Corp NV
Publication of WO1985003996A1 publication Critical patent/WO1985003996A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F25C1/142—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 outer walls of cooled bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers

Definitions

  • This invention relates to a method of and apparatus for the manufacture of ice, in particular, slush ice.
  • the manufacture of ice in particulate form can be effected by a process in which ice is continuously formed on a cold surface and equally continuously removed from that surface by scraper blades. Because it is necessary that water should crystallize very rapidly on the cold surface, the process requires that the refrigerant flow should be at very low temperature with consequent high energy demand.
  • Another proposal for the production of block ice involves a cold, heat exchange, surface of annular form which cooperates with a narrow scraper member rotatable about a vertical axis.
  • a coolant is circulated below the heat exchange surface and water lies above that surface so that there is continuous deposition and the scraper removes the deposited ice and any slush ice disposed above the surface with the result that block ice is continuously delivered from an outlet connected with the scraper.
  • This prior proposal suffers from the disadvantage that the amount of energy consumed in continuously scraping the deposited ice will be substantial especially when added to the force necessary to deliver the block ice through the outlet connected to the scraper.
  • a method of manufacturing slush ice comprising the steps of continuously supplying brine to an enclosure, passing the brine over a plane, disclike, cold surface, continuously agitating the ambient brine while simultaneously scraping any ice which may form on the plane, disc-like, surface by the same means as those which produce the agitation, and continuously removing slush ice from the enclosure as it is formed.
  • This action is preferably achieved by supercooling the brine by contact with a cooled disclike surface so that water crystallizes out from the brine.
  • the contact between the brine and the cooled surface is intended only to supercool the liquid, deposition of ice on the surface being kept to a low level by the agitation and substantially eliminated by the scraping action.
  • a method of manufacturing slush ice comprising the steps of contacting with brine or water disc-like surfaces lying in vertical planes cooled by a freon or other refrigerant and continuously agitating the ambient brine or water while simultaneously scraping any ice which may form on the disc-like surfaces by the same means as produce the agitation.
  • apparatus for the production of slush ice comprising an enclosure, inflow means to the enclosure for brine to be converted to ice, plane, circular heat-exchange surface means within the enclosure and arranged to be connected to a supply of refrigerant, means supporting the heat-exchange surface means within the enclosure, scraper means rotatable with a shaft extending along the axis of the heat-exchange means and movable relatively to the circular heat-exchange surface, which scraper means additionally serve to maintain brine to be converted to ice in a constantly agitated state whilst remaining in substantial contact with the corresponding heat-exchange surface, the water in the brine being converted to slush ice, and outflow means for continuously removing the slush ice from the enclosure.
  • the enclosure has a natural or synthetic rubber cover.
  • the heat-exchange surfaces may be duplicated and consist then of parallel circular plates accurately spaced from one another by a predetermined distance so that scraper means can clear the surface continuously thereby preventing deposition of a layer of ice.
  • the external surface of the or each heat-exchanger is polished thereby deterring ice deposition.
  • Figure 1 is a side elevation, partially in longitudinal section, of apparatus in accordance with the invention for producing slush ice
  • Figure 2 is an end view of the apparatus, partly in section, to show the internal construction of the apparatus
  • Figure 3 is an end elevation of one of the rotors incorporated in the apparatus of Figures 1 and 2;
  • Figure 4 is an internal view of a circular heat-exchanger plate forming part of the apparatus of Figures 1 and 2;
  • FIG. 5 is a side elevation of the heat exchanger plate of Figure 4.
  • Figure 6 is an external view of the heat-exchanger plate shown in Figure 5;
  • Figure 7 is an end, external, elevation of a cover plate of one heat-exchanger sub-assembly
  • Figure 8 is an end elevation of one heat-exchanger sub-assembly including both the items of Figure 4 and Figure 7;
  • Figure 9 is a side elevation of the sub-assembly of Figure 8.
  • Figure 10 is an end view of a modification of the main embodiment.
  • apparatus embodying the invention includes an enclosure 10 having two end plates 12,14 and also having a cover in the form of an annular rubber member 18 extending between support rings 20 of the end plates 12,14.
  • the end plates are interconnected by several longitudinally- extending, square section tie rods 22 which serve to maintain the spacing between the end plates and to reinforce the enclosure defined, in part, by the end plates and to support one or more heat-exchanger sub- assemblies 23.
  • the outline of the enclosure is generally circular as seen from Fig. 2.
  • the enclosure is supported by front and rear brackets 25,27 which are themselves bolted to a support surface (not shown) .
  • the left-hand (as shown) or front end plate 12 includes a bearing housing 24 and this accommodates two ball bearings 26 and a spacer bush 29, which journal a shaft 28 which extends into the right-hand end plate 14 which similarly carries a bearing housing 30.
  • the front bearing housing also has a seal for example a "Chicago Rawhide" seal 31.
  • the right-hand bearing housing 30 includes a "Chicago Rawhide” seal 32, and a single journal ball bearing 34.
  • the shaft 28 extends beyond the bearing housing 24 and the extension is coupled by any suitable means to a shaft power source (not shown) such as an electric motor.
  • the left-hand end plate 12 includes an inlet 40 (Fig. 2) for brine vertically below the bearing housing 24 and an outlet 42 (broken lines) for slush ice vertically above the bearing housing. Both inlet and outlet will, of course, be connected to appropriate piping.
  • the end plates are both reinforced by radial ribs 41 which are enlarged at their radially outer ends to receive bolts 43 by which the end plates are secured to the brackets 25 and 27.
  • Two disc-like heat-exchanger sub-assemblies 44 are supported on the ties 22 (only one shown) of square cross-section which are secured at each end to the end plates 12,14.
  • the outer surfaces of the heat-exchange surfaces are externally highly polished and will preferably be of copper, a copper-nickel alloy or aluminium alloy so as to provide high conductivity.
  • freons or other refrigerant is delivered at 50,51 through the left-hand end plate 12 to the lower portions of heat-exchanger sub-assemblies and is withdrawn through an outlet manifold 48 in the upper portion of the left-hand end plate 12.
  • the manifold extends between the end-plates.
  • the freon will, of course, be supplied by an appropriate refrigerating apparatus. Details of each heat-exchanger sub-assembly will be given hereinafter with reference to Figures 4 to 9.
  • a rotary agitator assembly 52 with scraper blades 53 is mounted fast for rotation with the shaft 28 and is spaced from the bearing assemblies of the heat-exchanger and from other scraper assemblies by spacer sleeves 54.
  • Each agitator assembly with scraper blades 53 includes two tubular arms 55 (see particularly Figure 3) mounted on a boss 56 which is keyed to the shaft 28. Attachment brackets 58 for blades 53 are provided adjacent the radially outer extremity of each arm 55 and pivots are used to secure each blade to the corresponding arm.
  • Each blade 53 is mounted in a blade carrier 61 which is itself pivotally supported on the boss 56 and the bracket 58 associated with each tubular arm 55 of the scraper assembly.
  • the boss has two diametrically opposed bores 63 (one only shown) each of which receives a pivot pin 65 which engages in a spigot member 67 having an extension 69 engaged in a bush 71 of the elongate carrier member itself 73.
  • the carrier member has a slot extending along substantially its whole length which receives the corresponding blade 53 and the latter is retained by grub screws (not shown) engaged in tapped bores 75 spaced along the length of the carrier member.
  • Each blade is chamfered to give a cutting edge and is preferably made of TEFLON (Registered Trade Mark).
  • each assembly comprises two disclike plates 72,74, the plate illustrated in Figure 4 being provided with four similar lugs 76 by which the heat-exchange assembly can be mounted on the tie rods 22 extending between the end plates 12 and 14. That one of the disc-like members 72 of the heat-exchange assembly illustrated in Figure 4 has a central aperture 78 for the passage of the shaft 28 and, internally, has shallow ribs 80 which control the passage of the coolant from the inlet at the bottom of each disc to the outlet at the top. Two of these ribs 811,812 extend vertically in a plane containing the longitudinal axis of the apparatus as a whole.
  • the remaining ribs 813/814 extend horizontally, alternate ribs being lateral extensions of the vertically extending ribs 811 & 812 and of a peripheral boundary rib 815 substantially of circular form. These alternating ribs leave spaces 816,817 for the passage of fluid at their respective tips so that in general terms two distinct sinuous paths are provided for the refrigerant, these paths ensuring a substantially even cooling effect over the whole of the disc-like surface of each heat-exchanger assembly.
  • the peripheral rib 815 deviates from the circular path at the top 818 and at the bottom 819 of the disc-like member to accommodate inlet and outlet means 82,84 for the refrigerant.
  • an extended portion 820 of the peripheral ridge is rectilinear instead of arcuate and extending upwardly from this rectilinear portion is a web 86 which serves as a reinforcement for the lower supporting lugs 76.
  • a similar web 88 is provided for the upper supporting lugs.
  • the height of the ribs is identical and accurate machining is carried out to ensure that when mated with the corresponding cover plate, likewise of copper or the alternatives referred to above, relatively little brazing or welding material will be required in order to braze the two parts together.
  • the ribs also serve to resist distortion which may otherwise arise owing to high internal pressures.
  • the apparatus will, of course, be connected to the required facility which is to be cooled or air conditioned and as will be readily apparent it will be a simple matter to provide appropriate controls to match requirements of the associated plant merely by adjusting the flow rates of the fluids and the rate of rotation of the agitator assemblies.
  • the important distinction of the method in accordance with the invention in relation to previously proposed methods is that because of the provision of agitation in relation to a heat-exchanger surface, ice particles are continuously formed in the brine whilst within the volume of the enclosure and the construction is deliberately such that little or no ice formation can take place on the heat exchange surfaces themselves.
  • each heat exchanger ensures that the performance of each one is substantially balanced with the performance of the remaining heat exchangers of the enclosure.
  • the supply of a refrigerant through the heat exchangers will, of course, be arranged in parallel.
  • Slush ice manufactured in accordance with any aspect of the invention behaves as a liquid so that even at high concentrations it can be conveyed through pipes and can be stored in bulk. This provides particular advantages for air-conditioning system which frequently have peak demands.
  • the storage ability enables the cooling effect to be stored using 'off peak' energy rates.
  • the storage space is much reduced since each cubic foot of slush ice holds 6000 BTU in comparison with 620 BTU for chilled water.
  • apparatus in accordance with the present invention enables very simple and straightforward servicing.
  • the enclosure member 18 is of rubber and after release of two steel clamping bands 90 and one of the support bracket assemblies 25 or 27 the rubber enclosure member 18 can readily be removed so that visual inspection is possible. If more complete disassembly is required, the bearing assembly at the righthand end of the end plate 14 can be removed and the three scraper assemblies and two heat-exchanger assemblies can be removed one by one. Replacement by use of a spare sub-assembly is readily possible with a minimum of lost operational time.
  • the fact referred to above that it is possible always to have a buffer store of slush ice means that the associated apparatus can continue to function and it will not be necessary to have at any given plant a spare primary slush ice producing apparatus.
  • This assembly can be further facilitated with the aid of a modified support for the end plate 14 as illustrated in Figure 10.
  • the end plate 14 is supported in this modification by a support bracket 96 having an upper arcuate surface 98 corresponding to the arcuate surface of the end plate itself and if access is provided from below a main support 10 for the apparatus as a whole it is a very straightforward matter to slacken the single bolt 102 which passes through the main frame support, through the bracket and into a self-locking nut 104 welded to the end plate itself.
  • the size for a given output is small in comparison with conventional plant.
  • the ice has a small spherical structure and will not therefore harm delicate products.
  • Sea water can be used to generate clean ice.
  • the modular nature of the apparatus enables specific capacities to be carefully matched merely by using more or less of the basic heat- exchange and agitator assemblies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

On produit en continu de la glace à demi-fondue à partir de saumure par un procédé comportant à la fois une action d'agitation et de raclage par rapport à des surfaces d'échange thérmique discoïdales (23). L'appareil comporte au moins deux surfaces d'échange thermique (23) et des racloirs (52, 53) servant aussi d'agitateurs.
PCT/EP1985/000085 1984-02-29 1985-02-27 Procede et appareil pour fabriquer de la glace Ceased WO1985003996A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8405221 1984-02-29
GB848405221A GB8405221D0 (en) 1984-02-29 1984-02-29 Making ice

Publications (1)

Publication Number Publication Date
WO1985003996A1 true WO1985003996A1 (fr) 1985-09-12

Family

ID=10557321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1985/000085 Ceased WO1985003996A1 (fr) 1984-02-29 1985-02-27 Procede et appareil pour fabriquer de la glace

Country Status (3)

Country Link
EP (1) EP0174356A1 (fr)
GB (1) GB8405221D0 (fr)
WO (1) WO1985003996A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257936A3 (en) * 1986-08-19 1988-09-21 Sunwell Engineering Company Limited Corrugated plate heat exchanger
US4802530A (en) * 1986-08-19 1989-02-07 Sunwell Engineering Company Ltd. Corrugated plate heat exchanger
WO1989001120A1 (fr) * 1987-07-31 1989-02-09 Wildridge & Sinclair Engineering Pty. Ltd. Appareil de fabrication de glace
AU618017B2 (en) * 1987-07-31 1991-12-12 Heat And Control Pty. Ltd. Ice making apparatus
US5307646A (en) * 1991-06-25 1994-05-03 North Star Ice Equipment Corporation Flake ice machine
US5448894A (en) * 1994-09-21 1995-09-12 North Star Ice Equipment Corporation Disk flake ice machine
US5632159A (en) * 1996-03-29 1997-05-27 North Star Ice Equipment Corporation Cooling disk for flake ice machine
CN1036151C (zh) * 1988-08-25 1997-10-15 热量控制公司 制冰设备
EP1004244A1 (fr) * 1998-11-24 2000-05-31 SOLLICH GmbH & Co. KG Appareil pour la préparation et la mise en oeuvre continue de matière contenant du beurre de cacao ou une graisse analogue
WO2003054459A1 (fr) * 2001-12-13 2003-07-03 Dieter Funk Dispositif de fabrication de glace en flocons
FR2872269A1 (fr) * 2004-06-29 2005-12-30 Lgl France Sa Dispositif d'echange de chaleur pour machine de production de froid
US7788943B2 (en) 2004-06-23 2010-09-07 Mikhail Mogilevsky Heat exchanger for use in cooling liquids
WO2013104813A1 (fr) * 2012-01-10 2013-07-18 Taller De Termotecnia Aplicada, S.L. Appareil permettant de produire de la glace liquide
US20160358761A1 (en) * 2015-06-05 2016-12-08 Watlow Electric Manufacturing Company High thermal conductivity wafer support pedestal device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE450528A (fr) *
US1678070A (en) * 1922-08-15 1928-07-24 Burmah Oil Co Ltd Apparatus for cooling oil or other liquids
GB452684A (en) * 1935-08-26 1936-08-27 Georg Ludvig Christian Holm A cooling device for oil
US2054841A (en) * 1935-02-02 1936-09-22 Vilter Mfg Co Machine for producing congealed substances
US2299414A (en) * 1940-07-15 1942-10-20 Ellis H Spiegl Apparatus for producing refrigerants
US2321262A (en) * 1939-11-01 1943-06-08 William H Taylor Space heat transfer apparatus
US2419881A (en) * 1944-06-02 1947-04-29 Int Harvester Co Sea water fractionator
CH344744A (de) * 1956-05-07 1960-02-29 Vyzk Ustav Stroju Chladicich A Kleineiserzeuger
US3385354A (en) * 1965-02-04 1968-05-28 Chemetron Corp Scraped surface heat exchange apparatus
GB1151611A (en) * 1967-02-15 1969-05-14 Johnson & Company London Ltd A A Rotary Scraped-Surface Heat-Exchanger
FR2113886A1 (en) * 1970-11-10 1972-06-30 Unilever Nv Heat exchanger - partic for cooling edible oils and fats
US3848289A (en) * 1973-04-16 1974-11-19 Chemetron Corp Scraper blade

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE450528A (fr) *
US1678070A (en) * 1922-08-15 1928-07-24 Burmah Oil Co Ltd Apparatus for cooling oil or other liquids
US2054841A (en) * 1935-02-02 1936-09-22 Vilter Mfg Co Machine for producing congealed substances
GB452684A (en) * 1935-08-26 1936-08-27 Georg Ludvig Christian Holm A cooling device for oil
US2321262A (en) * 1939-11-01 1943-06-08 William H Taylor Space heat transfer apparatus
US2299414A (en) * 1940-07-15 1942-10-20 Ellis H Spiegl Apparatus for producing refrigerants
US2419881A (en) * 1944-06-02 1947-04-29 Int Harvester Co Sea water fractionator
CH344744A (de) * 1956-05-07 1960-02-29 Vyzk Ustav Stroju Chladicich A Kleineiserzeuger
US3385354A (en) * 1965-02-04 1968-05-28 Chemetron Corp Scraped surface heat exchange apparatus
GB1151611A (en) * 1967-02-15 1969-05-14 Johnson & Company London Ltd A A Rotary Scraped-Surface Heat-Exchanger
FR2113886A1 (en) * 1970-11-10 1972-06-30 Unilever Nv Heat exchanger - partic for cooling edible oils and fats
US3848289A (en) * 1973-04-16 1974-11-19 Chemetron Corp Scraper blade

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257936A3 (en) * 1986-08-19 1988-09-21 Sunwell Engineering Company Limited Corrugated plate heat exchanger
US4802530A (en) * 1986-08-19 1989-02-07 Sunwell Engineering Company Ltd. Corrugated plate heat exchanger
WO1989001120A1 (fr) * 1987-07-31 1989-02-09 Wildridge & Sinclair Engineering Pty. Ltd. Appareil de fabrication de glace
JPH02504423A (ja) * 1987-07-31 1990-12-13 ヒート　アンド　コントロール　プロプライエタリー　リミテッド 氷製造装置
AU618017B2 (en) * 1987-07-31 1991-12-12 Heat And Control Pty. Ltd. Ice making apparatus
CN1036151C (zh) * 1988-08-25 1997-10-15 热量控制公司 制冰设备
US5307646A (en) * 1991-06-25 1994-05-03 North Star Ice Equipment Corporation Flake ice machine
US5448894A (en) * 1994-09-21 1995-09-12 North Star Ice Equipment Corporation Disk flake ice machine
US5632159A (en) * 1996-03-29 1997-05-27 North Star Ice Equipment Corporation Cooling disk for flake ice machine
WO1997037175A1 (fr) * 1996-03-29 1997-10-09 North Star Ice Equipment Corporation Disque refrigerant pour distributeur de glace en paillettes
US5918477A (en) * 1996-03-29 1999-07-06 North Star Ice Equipment Corporation Surface treated cooling disk for flake ice machine
US6241377B1 (en) 1998-11-24 2001-06-05 Sollich Gmbh & Co., Kg Apparatus for continuously tempering chocolate masses and the like
EP1004244A1 (fr) * 1998-11-24 2000-05-31 SOLLICH GmbH & Co. KG Appareil pour la préparation et la mise en oeuvre continue de matière contenant du beurre de cacao ou une graisse analogue
WO2003054459A1 (fr) * 2001-12-13 2003-07-03 Dieter Funk Dispositif de fabrication de glace en flocons
US7788943B2 (en) 2004-06-23 2010-09-07 Mikhail Mogilevsky Heat exchanger for use in cooling liquids
US8479530B2 (en) 2004-06-23 2013-07-09 Mikhail Mogilevsky Heat exchanger for use in cooling liquids
US9267741B2 (en) 2004-06-23 2016-02-23 Icegen Patent Corp. Heat exchanger for use in cooling liquids
US9995521B2 (en) 2004-06-23 2018-06-12 Icegen Patent Corp. Heat exchanger for use in cooling liquids
US11566830B2 (en) 2004-06-23 2023-01-31 Icegen Patent Corp. Heat exchanger for use in cooling liquids
FR2872269A1 (fr) * 2004-06-29 2005-12-30 Lgl France Sa Dispositif d'echange de chaleur pour machine de production de froid
WO2006010854A1 (fr) * 2004-06-29 2006-02-02 Lgl France Dispositif d'echange de chaleur pour machine de production de froid
US7380403B2 (en) 2004-06-29 2008-06-03 Lgl France Heat exchange device for a cold-producing machine
WO2013104813A1 (fr) * 2012-01-10 2013-07-18 Taller De Termotecnia Aplicada, S.L. Appareil permettant de produire de la glace liquide
US20160358761A1 (en) * 2015-06-05 2016-12-08 Watlow Electric Manufacturing Company High thermal conductivity wafer support pedestal device

Also Published As

Publication number Publication date
GB8405221D0 (en) 1984-04-04
EP0174356A1 (fr) 1986-03-19

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