EP0104162A1 - Machine de production de glace a tambour rotatif - Google Patents

Machine de production de glace a tambour rotatif

Info

Publication number
EP0104162A1
EP0104162A1 EP19820900912 EP82900912A EP0104162A1 EP 0104162 A1 EP0104162 A1 EP 0104162A1 EP 19820900912 EP19820900912 EP 19820900912 EP 82900912 A EP82900912 A EP 82900912A EP 0104162 A1 EP0104162 A1 EP 0104162A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
ice
liquid
refrigerant
drum
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.)
Withdrawn
Application number
EP19820900912
Other languages
German (de)
English (en)
Inventor
Warwick David Chapman
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.)
HARRISON Frederick John
Original Assignee
HARRISON Frederick John
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 HARRISON Frederick John filed Critical HARRISON Frederick John
Publication of EP0104162A1 publication Critical patent/EP0104162A1/fr
Withdrawn legal-status Critical Current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
    • F25C1/08—Producing ice by immersing freezing chambers, cylindrical bodies or plates into water

Definitions

  • This invention is concerned with ice making machine of the type which produce ice in relatively small discrete portions.
  • ice making machines have been proposed in which the ice produced comprises regularly shaped and sized portions of a variety of configurations e.g. blocks,
  • the particulate ice so formed is suitable for use in drinks and in flowable bulk form as a cooling medium for commercial applications e.g. the fishing industry.
  • Ice shapes are first formed during a refrigerating cycle and then harvested during a defrost cycle wherein hot refrigerant gases are employed on a reverse cycle to release
  • the present invention aims to overcome or alleviate the disadvantages of prior art ice makers and to provide a compact, simple and energy efficient apparatus capable of operating on a continuous rather than batch process.
  • an evaporator for an ice making apparatus comprising: rotatable evaporator means, at least part of said evaporator means extending in use into a liquid to be frozen to produce ice; inlet means communicating with the interior of said evaporator means to admit liquid refrigerant thereto; outlet means communicating with the interior of said evaporator means to remove gaseous refrigerant therefrom, said evaporator being adapted in use to receive a quantity of refrigerant liquid whereby ice will form upon an outer surface of said evaporator extending into said liquid- as the evaporator undergoes rotation and ice in contact with said evaporator is caused to at least partially melt when above the level of said liquid refrigerant.
  • the evaporator means comprises a hollow substantially cylindrical body with axially aligned shafts at each end for rotation of said evaporator means.
  • inlet means and said outlet means are associated with at least one of said axially aligned shafts.
  • said one or more substantially radially extending projections comprise hollow finger-like projections.
  • an ice making machine comprising:- a rotatable evaporator means as described above; drive means for rotation of said evaporator means; a container for liquid to be frozen to produce ice; a refrigerant compressor and condenser operatively connected to said evaporator means; and means to remove ice formed on said outer surface of said evaporator.
  • the drive means includes means to selectively control the speed of rotation of said evaporator means.
  • said container for liquid to be frozen to produce ice includes means to maintain a liquid at a predetermined level within said container.
  • said means to remove ice comprises wedge means adapted to engage between said evaporator and ice formed thereon as said evaporator rotates.
  • a method of continuously producing ice from a liquid comprising:- admission to a rotary evaporator as defined above of a quantity of liquid refrigerant whereby upon rotation of said evaporator, ice is formed on that portion of the evaporator in contact with the liquid to be frozen below the level of liquid refrigerant and ice in contact with said evaporator above the level of liquid refrigerant is caused to at least partially melt.
  • FIG. 1 illustrates a side elevation
  • FIG. 2 illustrates a cross sectional end elevation.
  • the apparatus comprises a hollow cylindrical drum 1 rotationally mounted on axial shafts 2 and 3 which are journalled in bearings on support brackets 4 and 5 respectively.
  • a variable speed electric motor 6 is operatively connected to shaft 2 by any suitable means such as gears, vee belt and pulleys on chain and sprocket.
  • Shaft 3 is a hollow tube through which liquid refrigerant inlet 7 and gaseous refrigerant outlet 8 communicate with the interior of drum 1.
  • Inlet 7 and outlet 8 communicate with the drum interior via a rotary carbon ring seal (not shown) mounted within seal housing 9.
  • the seal is connected to concentric tubes (not shown) extending through shaft 3 into the interior of the drum 1.
  • oil return plates are also mounted within the interior of drum 1 .
  • a water trough 11 with a water inlet 12 and a drain outlet 13.
  • the water inlet is fitted with a constant level control ⁇ not shown) such as a float valve or the like.
  • Drain outlet 13 comprises at its inner end an inverted U-shaped nozzle thus permitting the outlet 13 to be selectively operated as a siphon.
  • FIG. 2 is a cross section along the line A-A showing the interior arrangement of drum 1 and the ice harvesting device.
  • the harvesting device 16 comprises a series of curved stainless steel strips pivotally mounted at one end 17 and biassed under gravity towards the drum 1.
  • the strips are spaced to permit finger-like projections 10 to pas closely between adjacent strips.
  • the strips are shaped to engage the drum at their free ends to form a tangential ramped surface whereby ice formed on the finger-like projections is removed by a wedging action by adjacent strips on either side of the finger-like projections 10 as drum 1 rotates.
  • the ice shapes thus harvested then fall into collection chute 18 for transfer to a refrigerated storage bin (not shown) .
  • the operation of the ice maker according to the invention will now be described with reference to FIG. 2.
  • the gas above the liquid refrigerant having evaporated by absorption of heat from the water surrounding the projections, is at a higher temperature than the liquid. As the drum rotates heat is absorbed internally from the gaseous refrigerant and externally from surrounding air at
  • the trough may be periodically drained via the inverted U-shaped siphon tube 13.
  • the control of the siphoning may be effected by any known timing device and or solenoid operated valve.
  • the rotary evaporator of the invention is preferably constructed of a metal with good heat transfer characteristics. For this reason the thickness of metal is kept to a minimum consistent with the operating pressures, which dependent on the type of refrigerant used may be in the range 0.1 psig to 50 psig.
  • the drum and projections (and particularly the exterior surfaces thereof) are preferably corrosion resistant and may be treated with any
  • the refrigerant compressor and condensor may be of any known type of suitable capacity and refrigerant control may be effected by any of the following known control devices or their equivalent i.e. high side float, thermostatic expansion valve, automatic expansion valve, capillary tube.
  • the shape of the finger-like projections may be varied to suit the capacity requirements of the apparatus or the end use purpose of the ice shapes.
  • the projections may be long and thin, short and squat and their cross section may be round, square, polygonal or the like.
  • the finger-like projections may be adapted for selective removal from the evaporator by for example a screw threaded engagement therewith or a suitable socket and spigot connection or the like. In this manner, the shape of the ice portions formed with the invention may be selectively varied.
  • the apparatus may be adapted to produce large ice shapes at high production capacity by constructing the device with appropriate dimensions, choice of refrigerant and compressor capacity. Such ice shapes may be suitable for use in the holds of fishing vessels " or the like.
  • the apparatus could be employed in the manufacture of frozen shaped conf ctions.
  • the invention may comprise a smooth surfaced drum without projections for the manufacture of flake ice.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)

Abstract

Une machine de production de glace comprend un tambour évaporateur (20) monté sur un arbre aligné axialement et possédant de préférence une pluralité d'éléments en saillie en forme de doigts (10) partant du tambour (20). Lors de la rotation du tambour (20) le tambour (20) et les doigts (10) traversent un bain de liquide (11) et la glace se forme à la surface à cause de l'évaporation d'un réfrigérant liquide (19) contenu dans le tambour (20) et les doigts (10).
EP19820900912 1982-03-25 1982-03-25 Machine de production de glace a tambour rotatif Withdrawn EP0104162A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AU1982/000039 WO1983003463A1 (fr) 1982-03-25 1982-03-25 Machine de production de glace a tambour rotatif

Publications (1)

Publication Number Publication Date
EP0104162A1 true EP0104162A1 (fr) 1984-04-04

Family

ID=3760526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820900912 Withdrawn EP0104162A1 (fr) 1982-03-25 1982-03-25 Machine de production de glace a tambour rotatif

Country Status (2)

Country Link
EP (1) EP0104162A1 (fr)
WO (1) WO1983003463A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200306916Y1 (ko) * 2002-11-05 2003-03-11 윤선희 해수빙제조장치
CN101957112B (zh) * 2009-07-14 2012-08-29 江苏白雪电器股份有限公司 制冰装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732690A (en) * 1956-01-31 henderson
US1582158A (en) * 1924-02-12 1926-04-27 George L Bennett Method of and apparatus for making sheet ice
DE603859C (de) * 1932-03-19 1934-10-09 Linde Eismasch Ag Verfahren und Vorrichtung zur Herstellung von Scherbeneis
FR1056875A (fr) * 1950-12-11 1954-03-03 Flakice Corp Perfectionnements aux appareils et aux procédés pour la fabrication de la glace
US3775991A (en) * 1972-02-23 1973-12-04 C Field Ice making machine and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8303463A1 *

Also Published As

Publication number Publication date
WO1983003463A1 (fr) 1983-10-13

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19840228

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Inventor name: CHAPMAN, WARWICK DAVID