WO1989000272A1 - Device for manufacturing flake ice - Google Patents

Device for manufacturing flake ice Download PDF

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Publication number
WO1989000272A1
WO1989000272A1 PCT/DE1988/000358 DE8800358W WO8900272A1 WO 1989000272 A1 WO1989000272 A1 WO 1989000272A1 DE 8800358 W DE8800358 W DE 8800358W WO 8900272 A1 WO8900272 A1 WO 8900272A1
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WO
WIPO (PCT)
Prior art keywords
blind hole
shaft
siphon tube
rotary inlet
wall
Prior art date
Application number
PCT/DE1988/000358
Other languages
German (de)
French (fr)
Inventor
Jürgen WUTKE
Helmut Higel
Original Assignee
Wutke Juergen
Helmut Higel
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 Wutke Juergen, Helmut Higel filed Critical Wutke Juergen
Publication of WO1989000272A1 publication Critical patent/WO1989000272A1/en

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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

Definitions

  • the invention relates to a device for producing flake ice from a freezable liquid, in particular water, with a cooling drum which is arranged in a trough and is coupled via a shaft to a gearbox and has a body which has a spiral channel along its surface has, which is covered by a cylinder jacket made of a material that is a good conductor of heat and is connected via a first and a second radial channel to cavities in the shaft, which are each connected to the hoses of a refrigerant circuit.
  • Such a device is known from DE-PS 16 01 084 and has a shaft with two bores, each of which emanate from the shaft ends and are used to connect the refrigerant circuit.
  • the connections for connection to the refrigerant circuit are located on both sides of the drum, which makes the connections to the refrigerator and the gearbox of the drive motor complicated.
  • the invention has for its object to provide a device of the type mentioned that can be easily connected on the one hand with the gearbox of the drive motor and on the other hand with the refrigeration machine.
  • the shaft has a blind hole extending from one side into which the radial channels open, that a fixed siphon tube protrudes into the blind hole and seals near the front end of the wall of the blind hole in the rotatable shaft is and that the siphon tube with one hose of the coolant circuit and the annular space between the wall of the blind hole and the outside of the siphon tube is connected to the other hose of the refrigerant circuit.
  • the annular space of the shaft is extended by a rotatable tube section which projects into the housing of a rotary inlet and has an effective seal with respect to the housing of the rotary inlet at its end which projects into the rotary inlet.
  • FIG. 1 shows the device according to the invention in a view from the front
  • Fig. 3 shows the device in an enlarged side view in section
  • Fig. 4 is a longitudinal section through the refrigeration drum of the device to illustrate the various channels for the refrigerant.
  • the device for producing flake ice is shown schematically in FIG. 1 in a front view poses. It has a water trough 1 which is filled to a level 3 with the liquid to be converted into ice, in particular water 2.
  • a cooling drum 4 Inside the tub 1 there is a cooling drum 4 with a cylinder jacket 5 made of a material which is a good conductor of heat, for example aluminum.
  • the body 6 of the cooling drum 4 is made of plastic and is provided along its surface with a spiral groove 7 through which a refrigerant flows.
  • the cylinder jacket 5 By evaporating the refrigerant, the cylinder jacket 5 is cooled, so that an ice layer forms on the outside thereof, which can be scraped off with the aid of a fixed scraper 8, which can be seen in FIGS. 3 and 3, from the cooling drum 4 which rotates counterclockwise in FIG.
  • the cooling drum 4 is arranged on a shaft 9 shown in more detail in FIG. 4, which projects out of the water tub 1 on the left and right in FIG. 1.
  • the shaft 9 is coupled via a flange 10 to a continuously variable transmission 11, through which the shaft 9 and thus the cooling drum 4 are driven at a speed of approximately 1.2 revolutions per minute.
  • the transmission 11 is in turn connected to a schematically illustrated electric motor 12.
  • FIG. 1 On the right side in FIG. 1 it can be seen how the right end of the shaft 9 is connected to a rotary inlet 13 which has a first refrigerant connector 14 and a second refrigerant connector 15.
  • the refrigerant is preferably introduced via the first refrigerant nozzle 14 for cooling the cooling drum 4, the second refrigerant nozzle 15 serving as an outlet.
  • FIG. 3 shows, compared to FIG. 2, further details of the construction of the device for producing flake ice.
  • a water solenoid valve 16 serves for the controlled inlet of the water 2.
  • the water solenoid valve 16 with the associated inlet tube is located near the bottom 17 of the water tub 1 in a side wall of the water tub 1.
  • the water inlet via the water solenoid valve 16 is automatically controlled after the device has been connected, a baffle plate 18, which is arranged in the vicinity of the water solenoid valve 16 inside the water pan 1, preventing the water from being strongly injected into the water pan 1.
  • An ice guard 19 can also be seen in FIG. 3, the front end 20 of which is at a distance of approximately 5 mm from the cylinder jacket 5.
  • the ice guard 19 allows the device to be switched off when the layer of ice on the cylinder jacket 5 becomes so thick that there is contact with the front end 20.
  • a water level float switch (not shown separately in FIG. 3) is provided within the water pan 1, by means of which the level of the water level is kept at a level at which approximately 2/3 of the cooling surface of the cylinder jacket 5 is surrounded by water 2.
  • a water drain tap is provided on the bottom 17, which is also not shown in FIG. 3 and which allows the dirty water to be drained off on the bottom 17 in order to clean the device.
  • the cooling drum 4 is shown enlarged with the associated shaft 9.
  • the left end of the spiral groove 4 in FIG. 4 is connected to a first channel 21 and the right end of the spiral groove 7 in FIG. 4 is connected to a second channel 22.
  • the channels 21, 22 extend radially through the body 6 of the cooling drum 4, which can also be seen in FIG. 2.
  • the shaft 9 driven by the gear 11 is rotatably supported in bearings 23 and 24, which are shown schematically in FIG. 4, in two opposite side walls 25, 26 of the water tub 1.
  • the right end of the shaft 9 in FIG. 4 opens into the fixed rotary entry 13, seals not shown separately being provided in FIG. 4 between the rotating and non-rotating parts.
  • the shaft 9 has a blind hole 27 which extends from the right end in FIG. 4 to the vicinity of the bearing 23 on the left side of the shaft 9. Both the first channel 21 and the second channel 22 open into the blind hole 27.
  • the diameter of the blind hole 27 at the left end is smaller than at the right end of the shaft 9.
  • a circumferential shoulder 28 is formed inside the shaft 9, against which a stuffing box 29 rests.
  • the stuffing box 29 is assigned an O-ring 30 so that a fixed siphon tube 31, which projects through the stuffing box 29 from the right in FIG. 4, is guided in a well-sealed manner.
  • the siphon tube 31, the diameter of which is smaller than the diameter of the blind hole 27, extends from the vicinity of the mouth of the first channel 21 through the blind hole 27 to the rotary inlet 13, where it merges into the first refrigerant nozzle 14.

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

Abstract

A device for manufacturing flake ice from a freezable liquid has a trough with walls (25), in which a shaft (9) is rotatably mounted. The shaft is connected at one end to a drive and at the other to a refrigerating drum (4). Radial canals (21, 22) open into a blind hole bore (27) in one side of the shaft (9). A stationary siphon tube (31) protrudes into the blind hole bore (27) and is sealed in the region of its front end from the walls of the blind hole bore (27). The siphon tube (31) is connected with one flexible tube of the coolant circuit, and the annular space (33) between the walls of the blind hole bore (27) and the outer wall of the siphon tube is connected with the other flexible tube of the coolant circuit.

Description

vorricntung zum Herstellen von Scherbeneis Die Erfindung betrifft eine Vorrichtung zum Herstellen von Scherbeneis aus einer gefrierbaren Flüssigkeit, insbesondere Wasser, mit einer in einer Wanne angeordneten und über eine Welle mit einem Getriebe gekoppelten Kältetrommel, die einen Körper aufweist, der entlang seiner Oberfläche einen spiralförmigen Kanal aufweist, der von einem Zylindermantel aus einem Wärme gut leitenden Material abgedeckt ist und über einen ersten und einen zweiten radialen Kanal mit Hohlräumen in der Welle verbunden ist, die jeweils mit den Schläuchen eines Kältemittelkreislaufs verbunden sind. The invention relates to a device for producing flake ice from a freezable liquid, in particular water, with a cooling drum which is arranged in a trough and is coupled via a shaft to a gearbox and has a body which has a spiral channel along its surface has, which is covered by a cylinder jacket made of a material that is a good conductor of heat and is connected via a first and a second radial channel to cavities in the shaft, which are each connected to the hoses of a refrigerant circuit.
Eine derartige Vorrichtung ist aus der DE-PS 16 01 084 bekannt und verfügt über eine Welle mit zwei Bohrungen, die jeweils von den Wellenenden ausgehen und zum Anschluß des Kältemittelkreislaufs dienen. Auf diese Weise befinden sich die Anschlüsse zur Verbindung mit dem Kältemittelkreislauf auf beiden Seiten der Trommel, wodurch sich die Verbindungen mit der Kältemaschine und dem Getriebe des Antriebsmotors kompliziert gestalten .Such a device is known from DE-PS 16 01 084 and has a shaft with two bores, each of which emanate from the shaft ends and are used to connect the refrigerant circuit. In this way, the connections for connection to the refrigerant circuit are located on both sides of the drum, which makes the connections to the refrigerator and the gearbox of the drive motor complicated.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die auf der einen Seite einfach mit dem Getriebe des Antriebsmotors und auf der anderen Seite einfach mit der Kältemaschine verbunden werden kann.Based on this prior art, the invention has for its object to provide a device of the type mentioned that can be easily connected on the one hand with the gearbox of the drive motor and on the other hand with the refrigeration machine.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Welle eine von einer Seite ausgehende Sacklochbohrung aufweist, in die die radialen Kanäle münden, daß ein feststehendes Siphonrohr in die Sacklochbohrung hineinragt und in der Nähe seines vorderen Endes gegenüber der Wandung der Sacklochbohrung in der drehbaren Welle abgedichtet ist und daß das Siphonrohr mit dem einen Schlauch des Kühlmittelkreislaufs und der Ringraum zwischen der Wandung der Sacklochbohrung und der Außenseite des Siphonrohres mit dem anderen Schlauch des Kältemittelkreislaufs verbunden ist.This object is achieved in that the shaft has a blind hole extending from one side into which the radial channels open, that a fixed siphon tube protrudes into the blind hole and seals near the front end of the wall of the blind hole in the rotatable shaft is and that the siphon tube with one hose of the coolant circuit and the annular space between the wall of the blind hole and the outside of the siphon tube is connected to the other hose of the refrigerant circuit.
Bei einem vorteilhaften Ausführungsbeispiel der Erfindung ist der Ringraum der Welle durch einen drehbaren Rohrabschnitt verlängert, der in das Gehäuse einer Dreheinführung hineinragt und an seinem in die Dreheinführung hineinragenden Ende eine gegenüber dem Gehäuse der Dreheinführung wirksame Dichtung aufweist.In an advantageous embodiment of the invention, the annular space of the shaft is extended by a rotatable tube section which projects into the housing of a rotary inlet and has an effective seal with respect to the housing of the rotary inlet at its end which projects into the rotary inlet.
Zweckmäßige Weiterbildungen und Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Appropriate developments and refinements of the invention are characterized in the subclaims.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. Es zeigen:An exemplary embodiment of the invention is explained in more detail below with reference to the drawing. Show it:
Fig. 1 die Vorrichtung gemäß der Erfindung in einer Ansicht von vorne,1 shows the device according to the invention in a view from the front,
Fig. 2 die Vorrichtung in einer Seitenansicht,2 shows the device in a side view,
Fig. 3 die Vorrichtung in einer vergrößerten Seitenansieht im Schnitt undFig. 3 shows the device in an enlarged side view in section and
Fig. 4 einen Längsschnitt durch die Kältetrommel der Vorrichtung zur Veranschaulichung der verschiedenen Kanäle für das Kältemittel.Fig. 4 is a longitudinal section through the refrigeration drum of the device to illustrate the various channels for the refrigerant.
Die Vorrichtung zum Herstellen von Scherbeneis ist in Fig. 1 schematisch in einer Ansicht von vorne darge stellt. Sie verfügt über eine Wasserwanne 1, die mit der in Eis zu verwandelnden Flüssigkeit, insbesondere Wasser 2, bis zu einem Niveau 3 gefüllt ist.The device for producing flake ice is shown schematically in FIG. 1 in a front view poses. It has a water trough 1 which is filled to a level 3 with the liquid to be converted into ice, in particular water 2.
Innerhalb der Wanne 1 befindet sich eine Kältetrommel 4 mit einem Zylindermantel 5 aus einem Wärme gut leitenden Material, beispielsweise Aluminium. Der Körper 6 der Kältetrommel 4 besteht aus Kunststoff und ist entlang seiner Oberfläche mit einer Spiralnut 7 versehen, durch die ein Kältemittel strömt. Durch verdampfen des Kältemittels wird der Zylindermantel 5 gekühlt, so daß sich auf dessen Außenseite eine Eisschicht bildet, die mit Hilfe eines in den Figuren und 3 erkennbaren feststehenden Schabers 8 von der sich in Figur 2 entgegengesetzt dem Uhrzeigersinn drehenden Kältetrommel 4 abschabbar ist.Inside the tub 1 there is a cooling drum 4 with a cylinder jacket 5 made of a material which is a good conductor of heat, for example aluminum. The body 6 of the cooling drum 4 is made of plastic and is provided along its surface with a spiral groove 7 through which a refrigerant flows. By evaporating the refrigerant, the cylinder jacket 5 is cooled, so that an ice layer forms on the outside thereof, which can be scraped off with the aid of a fixed scraper 8, which can be seen in FIGS. 3 and 3, from the cooling drum 4 which rotates counterclockwise in FIG.
Die Kältetrommel 4 ist auf einer in Figur 4 detaillierter dargestellten Welle 9 angeordnet, die in Fig. 1 links und rechts aus der Wasserwanne 1 herausragt. Auf der in Fig. 1 linken Seite ist die Welle 9 über einen Flansch 10 an ein stufenlos einstellbares Getriebe 11 angekoppelt, durch das die Welle 9 und damit die Kältetrommel 4 etwa mit einer Geschwindigkeit von 1,2 Umdrehungen pro Minute angetrieben wird. Das Getriebe 11 ist seinerseits mit einem schematisch dargestellten Elektromotor 12 verbunden.The cooling drum 4 is arranged on a shaft 9 shown in more detail in FIG. 4, which projects out of the water tub 1 on the left and right in FIG. 1. On the left in FIG. 1, the shaft 9 is coupled via a flange 10 to a continuously variable transmission 11, through which the shaft 9 and thus the cooling drum 4 are driven at a speed of approximately 1.2 revolutions per minute. The transmission 11 is in turn connected to a schematically illustrated electric motor 12.
Auf der in Fig. 1 rechten Seite erkennt man, wie die Welle 9 mit ihrem rechten Ende an eine Dreheinführung 13 angeschlossen ist, die einen ersten Kältemittelstutzen 14 und einen zweiten Kältemittelstutzen 15 aufweist. Ober den ersten Kältemittelstutzen 14 erfolgt vorzugsweise die Einleitung des Kältemittels zum Kühlen der Kältetrommel 4, wobei der zweite Kältemittelstutzen 15 als Auslaß dient.On the right side in FIG. 1 it can be seen how the right end of the shaft 9 is connected to a rotary inlet 13 which has a first refrigerant connector 14 and a second refrigerant connector 15. The refrigerant is preferably introduced via the first refrigerant nozzle 14 for cooling the cooling drum 4, the second refrigerant nozzle 15 serving as an outlet.
Fig. 3 zeigt gegenüber Fig. 2 weitere Einzelheiten des Aufbaus der Vorrichtung zum Herstellen von Scherbeneis. Ein Wassermagnetventil 16 dient zum gesteuerten Einlaß des Wassers 2. Wie man in Fig. 3 erkennen kann, befindet sich das Wassermagnetventil 16 mit dem zugehörigen Einlaufröhr in der Nähe des Bodens 17 der Wasserwanne 1 in einer Seitenwand der Wasserwanne 1. Der Wasserzulauf über das Wassermagnetventil 16 wird automatisch nach dem Anschließen der Vorrichtung gesteuert, wobei ein Prallblech 18, das in der Nähe des Wassermagnetventils 16 im Innern der Wasserwanne 1 angeordnet ist, ein starkes Einspritzen des Wassers in die Wasserwanne 1 vermeidet.FIG. 3 shows, compared to FIG. 2, further details of the construction of the device for producing flake ice. A water solenoid valve 16 serves for the controlled inlet of the water 2. As can be seen in FIG. 3, the water solenoid valve 16 with the associated inlet tube is located near the bottom 17 of the water tub 1 in a side wall of the water tub 1. The water inlet via the water solenoid valve 16 is automatically controlled after the device has been connected, a baffle plate 18, which is arranged in the vicinity of the water solenoid valve 16 inside the water pan 1, preventing the water from being strongly injected into the water pan 1.
Man erkennt in Fig. 3 weiterhin einen Eiswächter 19, dessen vorderes Ende 20 einen Abstand von etwa 5 mm von dem Zylindermantel 5 hat. Der Eiswächter 19 gestattet ein Abschalten der Vorrichtung, wenn die Eisschicht auf dem Zylindermantel 5 so stark wird, daß eine Berührung mit dem vorderen Ende 20 erfolgt.An ice guard 19 can also be seen in FIG. 3, the front end 20 of which is at a distance of approximately 5 mm from the cylinder jacket 5. The ice guard 19 allows the device to be switched off when the layer of ice on the cylinder jacket 5 becomes so thick that there is contact with the front end 20.
Außerdem ist innerhalb der Wasserwanne 1 ein in Fig. 3 nicht gesondert gezeichneter Wasserstandsschwimmschalter vorgesehen, durch den das Niveau des Wasserspiegels auf einer Höhe gehalten wird, bei der etwa 2/3 der Kühlfläche des Zylindermantels 5 von Wasser 2 umgeben sind. Weiterhin ist am Boden 17 ein Wasserablaufhahn vorgesehen, der in Figur 3 ebenfalls nicht dargestellt ist und der es gestattet, zum Reinigen der Vorrichtung das Schmutzwasser am Boden 17 abzulassen. In Figur 4 ist die Kältetrommel 4 mit der zugehörigen Welle 9 vergrößert dargestellt. Man erkennt unterhalb des Zylindermantels 5 der Kältetrommel 4 die Spiralnut 7 zum Durchströmen des Kältemittels. Das in Figur 4 linke Ende der Spiralnut 4 ist mit einem ersten Kanal 21 und das in Figur 4 rechte Ende der Spiralnut 7 mit einem zweiten Kanal 22 verbunden. Die Kanäle 21, 22 erstrecken sich radial durch den Körper 6 der Kältetrommel 4, was auch in Figur 2 zu erkennen ist.In addition, a water level float switch (not shown separately in FIG. 3) is provided within the water pan 1, by means of which the level of the water level is kept at a level at which approximately 2/3 of the cooling surface of the cylinder jacket 5 is surrounded by water 2. Furthermore, a water drain tap is provided on the bottom 17, which is also not shown in FIG. 3 and which allows the dirty water to be drained off on the bottom 17 in order to clean the device. In Figure 4, the cooling drum 4 is shown enlarged with the associated shaft 9. One can see below the cylinder jacket 5 of the cooling drum 4, the spiral groove 7 for flowing through the refrigerant. The left end of the spiral groove 4 in FIG. 4 is connected to a first channel 21 and the right end of the spiral groove 7 in FIG. 4 is connected to a second channel 22. The channels 21, 22 extend radially through the body 6 of the cooling drum 4, which can also be seen in FIG. 2.
Die über das Getriebe 11 angetriebene Welle 9 ist in in Figur 4 schematisch dargestellten Lagern 23 und 24 in zwei gegenüberliegenden Seitenwänden 25, 26 der Wasserwanne 1 drehbar gelagert. Das in Figur 4 rechte Ende der Welle 9 mündet in die feststehende Dreheinführung 13, wobei in Figur 4 nicht gesondert dargestellte Dichtungen zwischen den sich drehenden und nichtdrehenden Teilen vorgesehen sind.The shaft 9 driven by the gear 11 is rotatably supported in bearings 23 and 24, which are shown schematically in FIG. 4, in two opposite side walls 25, 26 of the water tub 1. The right end of the shaft 9 in FIG. 4 opens into the fixed rotary entry 13, seals not shown separately being provided in FIG. 4 between the rotating and non-rotating parts.
Die Welle 9 verfügt über eine Sacklochbohrung 27, die sich vom in Figur 4 rechten Ende aus bis in die Nähe des Lagers 23 auf der linken Seite der Welle 9 erstreckt. Sowohl der erste Kanal 21 als auch der zweite Kanal 22 münden in die Sacklochbohrung 27.The shaft 9 has a blind hole 27 which extends from the right end in FIG. 4 to the vicinity of the bearing 23 on the left side of the shaft 9. Both the first channel 21 and the second channel 22 open into the blind hole 27.
Wie man in Figur 4 erkennt, ist der Durchmesser der Sacklochbohrung 27 am linken Ende kleiner als am rechten Ende der Welle 9. Auf diese Weise ist im Innern der Welle 9 eine umlaufende Schulter 28 gebildet, gegen die eine Stopfbuchse 29 anliegt. Der Stopfbuchse 29 ist ein O-Ring 30 zugeordnet, so daß ein feststehendes Siphonrohr 31, welches in Figur 4 von rechts durch die Stopfbuchse 29 hindurchragt, gut abgedichtet geführt ist. Das Siphonrohr 31, dessen Durchmesser kleiner als der Durchmesser der Sacklochbohrung 27 ist, erstreckt sich von der Nähe der Mündung des ersten Kanals 21 aus durch die Sacklochbohrung 27 bis zur Dreheinführung 13, wo es in den ersten Kältemittelstutzen 14 übergeht. Wenn Kältemittel durch den ersten Kältemittelstutzen 14 und durch die Dreheinführung 13 in das feststehende Siphonrohr 31 eingeleitet wird, gelangt es in den Zwischenraum 32 am linken Ende der- Sacklochbohrung 27 und von dort über den ersten Kanal 21 zur umlaufenden Spiralnut 7, wo es beim Kühlen des Zylindermantels 5 zur Erzeugung einer Eisschicht auf der Kältetrommel 4 verdampft Das verbrauchte Kältemittel gelangt schließlich über den zweiten Kanal 22 in den zwischen dem Siphonrohr 31 und der Wandung der Sacklochbohrung 27 gebildeten Ringraum 33 und von dort in den zugeordneten Hohlraum 34 der Dreheinführung 13, von wo es Über den zweiten Kältemittelstutzen 15 in den Kältemittelkreislauf gelangt. As can be seen in FIG. 4, the diameter of the blind hole 27 at the left end is smaller than at the right end of the shaft 9. In this way, a circumferential shoulder 28 is formed inside the shaft 9, against which a stuffing box 29 rests. The stuffing box 29 is assigned an O-ring 30 so that a fixed siphon tube 31, which projects through the stuffing box 29 from the right in FIG. 4, is guided in a well-sealed manner. The siphon tube 31, the diameter of which is smaller than the diameter of the blind hole 27, extends from the vicinity of the mouth of the first channel 21 through the blind hole 27 to the rotary inlet 13, where it merges into the first refrigerant nozzle 14. When refrigerant is introduced through the first refrigerant nozzle 14 and through the rotary inlet 13 into the fixed siphon tube 31, it gets into the space 32 at the left end of the blind hole 27 and from there via the first channel 21 to the circumferential spiral groove 7, where it cools of the cylinder jacket 5 evaporates to produce an ice layer on the cooling drum 4. The used refrigerant finally passes via the second channel 22 into the annular space 33 formed between the siphon tube 31 and the wall of the blind hole 27 and from there into the associated cavity 34 of the rotary inlet 13, from where it reaches the refrigerant circuit via the second refrigerant nozzle 15.

Claims

Patentansprüche Claims
1. Vorrichtung zum Herstellen von Scherbeneis aus einer gefrierbaren Flüssigkeit, insbesondere Wasser, mit einer in einer Wanne (1) angeordneten und über eine Welle (9) mit einem Getriebe (11) gekoppelten Kältetrommel (A), die einen Körper (B) aufweist, der entlang seiner Oberfläche einen spiralförmigen Kanal (7) aufuieist, der von einem Zylindermantel (5) aus einem Wärme gut leitenden Material abgedeckt ist und über einen ersten und einen zweiten radialen Kanal (21, 22) mit Hohlräumen in der Welle (9) verbunden ist, die jeweils mit den Schläuchen eines Kältemittelkreislaufs verbunden sind, d a d u r c h g e k e n n z e i c h n e t , daß die Welle (9) eine uon einer Seite ausgehende Sacklochbohrung (27) aufweist, in die die radialen Kanäle (21, 22) münden, daß ein feststehendes Syphonrohr (31) in die Sacklochbohrung (27) hineinragt und in der Nähe seines vorderen Endes gegenüber der Wandung der Sacklochbohrung (27) in der drehbaren Welle (9) abgedichtet ist und daß das Syphonrohr (31) mit dem einen Schlauch des Kühlmittelkreislaufs und der Ringraum (33) zwischen der Wandung der Sacklochbohrung (27) und der Außenseite des Syphonrohres (31) mit dem anderen Schlauch des Kältemi ttelkreislaufs verbunden ist.1. Device for producing flake ice from a freezable liquid, in particular water, with a cooling drum (A) which is arranged in a trough (1) and is coupled via a shaft (9) to a gear (11) and has a body (B) which has a spiral channel (7) along its surface, which is covered by a cylinder jacket (5) made of a material which is a good conductor of heat, and via a first and a second radial channel (21, 22) with cavities in the shaft (9) , which are each connected to the hoses of a refrigerant circuit, characterized in that the shaft (9) has a blind hole (27) extending from one side into which the radial channels (21, 22) open, that a fixed siphon tube (31 ) protrudes into the blind hole (27) and is sealed in the vicinity of its front end with respect to the wall of the blind hole (27) in the rotatable shaft (9) and that there s siphon tube (31) with one hose of the coolant circuit and the annular space (33) between the wall of the blind hole (27) and the outside of the siphon tube (31) is connected to the other hose of the refrigerant circuit.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sacklochbohrung (27) am vorderen Ende einen verkleinerten Durchmesser (32) aufweist, in den das Syphonrohr (31) hineinragt.2. Device according to claim 1, characterized in that the blind hole (27) at the front end has a reduced diameter (32) into which the siphon tube (31) protrudes.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß in der Sacklochbohrung (27) eine Stopfbuchse (29) und ein O-Ring (30) zur Abdichtung des Syphonrohres (31) gegenüber der Wandung der Sacklochbohrung (27) vorgesehen ist.3. Apparatus according to claim 2, characterized in that in the blind hole (27) a stuffing box (29) and an O-ring (30) is provided for sealing the siphon tube (31) against the wall of the blind hole (27).
4. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Ringraum (33) in einen Hohlraum (34) in der Dreheinführung (13) mündet, durch den sich das Syphonrohr (31) erstreckt.4. Device according to one of the preceding claims, characterized in that the annular space (33) opens into a cavity (34) in the rotary inlet (13) through which the siphon tube (31) extends.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet daß der Riπgraum (33) der Welle (9) durch einen drehbaren Rohrabschnitt verlängert ist, der in das Gehäuse der Dreheinführung (13) hineinragt und an seinem in die Dreheinführung (13) hineinragenden Ende eine gegenüber dem Gehäuse der Dreheinführung (13) wirsame Dichtung aufweist. 5. The device according to claim 4, characterized in that the Riπgraum (33) of the shaft (9) is extended by a rotatable tube section which projects into the housing of the rotary inlet (13) and at its end projecting into the rotary inlet (13) opposite one the housing of the rotary inlet (13) has an effective seal.
PCT/DE1988/000358 1987-07-04 1988-06-14 Device for manufacturing flake ice WO1989000272A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8709275U DE8709275U1 (en) 1987-07-04 1987-07-04 Device for producing flake ice
DEG8709275.1U 1987-07-04

Publications (1)

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WO1989000272A1 true WO1989000272A1 (en) 1989-01-12

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Application Number Title Priority Date Filing Date
PCT/DE1988/000358 WO1989000272A1 (en) 1987-07-04 1988-06-14 Device for manufacturing flake ice

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AU (1) AU1937088A (en)
DE (1) DE8709275U1 (en)
WO (1) WO1989000272A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
EP0535498A2 (en) * 1991-10-04 1993-04-07 Maja-Maschinenfabrik Hermann Schill GmbH Automatic chipped ice maker
WO1994016861A1 (en) * 1993-01-26 1994-08-04 Ice Blast International Ltd. Apparatus for real time ice supply to ice blasting system
DE19507864A1 (en) * 1995-03-08 1996-09-12 Schill Maja Masch Flake ice machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1454101T3 (en) * 2001-12-13 2005-12-05 Dieter Funk Apparatus for making dandruff

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Publication number Priority date Publication date Assignee Title
GB172994A (en) * 1920-06-16 1921-12-16 Percy Field Crosland Improvements in means for heating hollow cylinders of calendering and like machines
US2344922A (en) * 1941-01-13 1944-03-21 Flakice Corp Of New York Refrigeration
US2467933A (en) * 1940-03-09 1949-04-19 Gruhn Axel Machine for making artificial ice products
DE859481C (en) * 1946-05-15 1953-01-19 Escher Wyss Maschinenfabrik G Heat exchange device
GB696013A (en) * 1950-12-11 1953-08-19 Flakice Corp Improvements in or relating to apparatus for and method of making ice
US2936158A (en) * 1958-12-24 1960-05-10 Kentile Inc Heat exchange rolls
US3494144A (en) * 1969-01-16 1970-02-10 Hermann Schill Rotary drum flake ice maker
DE2016499A1 (en) * 1969-04-09 1970-10-15 The Johnson Corp., Three Rivers, Mich. (V.St.A.) Feed and discharge device, in particular for heat exchangers with small internal diameters
DE2707907A1 (en) * 1976-02-24 1977-08-25 Trimay Engineering Co Water cooled roll esp. guide roll in steel casting plant - with spiral internal passages for flow of water to give effective cooling without distortion

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB172994A (en) * 1920-06-16 1921-12-16 Percy Field Crosland Improvements in means for heating hollow cylinders of calendering and like machines
US2467933A (en) * 1940-03-09 1949-04-19 Gruhn Axel Machine for making artificial ice products
US2344922A (en) * 1941-01-13 1944-03-21 Flakice Corp Of New York Refrigeration
DE859481C (en) * 1946-05-15 1953-01-19 Escher Wyss Maschinenfabrik G Heat exchange device
GB696013A (en) * 1950-12-11 1953-08-19 Flakice Corp Improvements in or relating to apparatus for and method of making ice
US2936158A (en) * 1958-12-24 1960-05-10 Kentile Inc Heat exchange rolls
US3494144A (en) * 1969-01-16 1970-02-10 Hermann Schill Rotary drum flake ice maker
DE2016499A1 (en) * 1969-04-09 1970-10-15 The Johnson Corp., Three Rivers, Mich. (V.St.A.) Feed and discharge device, in particular for heat exchangers with small internal diameters
DE2707907A1 (en) * 1976-02-24 1977-08-25 Trimay Engineering Co Water cooled roll esp. guide roll in steel casting plant - with spiral internal passages for flow of water to give effective cooling without distortion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535498A2 (en) * 1991-10-04 1993-04-07 Maja-Maschinenfabrik Hermann Schill GmbH Automatic chipped ice maker
EP0535498A3 (en) * 1991-10-04 1993-11-10 Schill Maja Masch Automatic chipped ice maker
WO1994016861A1 (en) * 1993-01-26 1994-08-04 Ice Blast International Ltd. Apparatus for real time ice supply to ice blasting system
DE19507864A1 (en) * 1995-03-08 1996-09-12 Schill Maja Masch Flake ice machine

Also Published As

Publication number Publication date
DE8709275U1 (en) 1987-10-01
AU1937088A (en) 1989-01-30

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