DE1501180A1 - Process for the production of broken ice by means of direct cooling - Google Patents
Process for the production of broken ice by means of direct coolingInfo
- Publication number
- DE1501180A1 DE1501180A1 DE19661501180 DE1501180A DE1501180A1 DE 1501180 A1 DE1501180 A1 DE 1501180A1 DE 19661501180 DE19661501180 DE 19661501180 DE 1501180 A DE1501180 A DE 1501180A DE 1501180 A1 DE1501180 A1 DE 1501180A1
- Authority
- DE
- Germany
- Prior art keywords
- ice
- egg
- fresh water
- valves
- container
- 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.)
- Pending
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
-
- 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
- F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
- F25C5/10—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice using hot refrigerant; using fluid heated by refrigerant
Landscapes
- 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)
Description
Verfahren zur Herstellung von Brucheis mittels direkter Kühlung. .Die Herstellung von Brucheis wird nach einem bekannten Verfahren so durchgeführt, daß mittels einer Ainmoniak-Kühlanlage au# ca. -18 Grad C abgekühlt wird, in das konische Behli*ilter eintaucheii, die init dein einzufrierenden Süßwasser gefüllt sind. Nach Erreichen des eisförmigen Aggregatzustandes werden die Behälter in Warmwasoer -etaucht, wodurch der Eisklotz von dein Behälter getrennt wird. In einem anschließendem Arbeitsgang wird das Stangeneis durch einen Mahlvorgang in Brucheis CD zerkleinert. Der Nachteil der diesem Verfahren anhaftet besteht darin,daß indirekt auf dem Umweg über auf -18 Grad C abgekühltes 'Salzwasser Süßwasser eingefroren wird.Process for the production of broken ice by means of direct cooling. The production of crushed ice is carried out according to a known process in such a way that it is cooled to approx. -18 degrees C by means of an ammonia cooling system, and the conical bowls filled with fresh water to be frozen are dipped into the conical container. After reaching the ice-shaped state of aggregation, the containers are immersed in warm water, which separates the ice block from your container. In a subsequent operation, the ice stick is crushed into crushed ice CD using a grinding process. The disadvantage of this process is that fresh water is frozen indirectly via salt water, which has been cooled to -18 degrees C.
Da dieses Salzwasserbad sehr großflächig ist und auch bei guter Wärineisolierung desselben insbesondere beiin Herausnehinen der Eisklötze erhebliche Kälteverluste unvermeidbar sind, wird die Wirtschaftlichkeit erheblich gemindert, zumal die vollständige Einfrieruüg des Süßwassers ca. 16 Stunden dauert.Since this salt water bath is very large and even with good thermal insulation, considerable cold losses are unavoidable, especially when the ice blocks are removed, the economy is considerably reduced, especially since the complete freezing of the fresh water takes about 16 hours.
Diise Nachteile können umgangen werden, wenn erfinüungsgemäß unter Vermeidung des Salzwasserbades Brucheis dadurch hergestellt wird daß Süßwasser an der.Oberfläche von Kühlelementen die mit dem Kühlmittel (,Aiiiiiloniak) ."ei'Ullt sind, direkt auGfrierLund dadurch eine vollständige Automatisierung des Herstellungsprozesoes erziehlt wird. Gemä, der Fig. 1 darge.-stellten prinzipiellen Anordnung wird auf an sich bekannter Art iiiittels eines Kompressors 1 über einen Kondensator 2 und einem Druckpegelregler 5 in einen Abscheider 4 flüssiges Am-D nioniak init einer Temperatur von -10 Grad C gewonnen.Über die Rohrleitung 5 und über -3-Weg-Iilagrietventibe oder auch hydraulisch gesteuerten 3-We,->1-Ventile 6,7,8 und 9 sowie die Rohrleitungen 10,11,12 und 15 werden die Kühleleiiiente 14,15,16,17 mit Ammoniak gefüllt.Das in den Kühleleinenten entstehende Amitioniakga"j wird initLels der Rohrleitungen 18,19,20und 21 über Magnet oder Hydraulik -3-#,ieg-*ientile 22,23,24,25in den Abscheidur 4 zurück geführt. Über die Oberfläche aer Kühlkörper 14,15,16 und 17'wizld aus perforierten Rohrleitungen 26, 27.28,29 austretendes Süßwasser geleitet,däs über die Zweiw » egventile 30.31,32 und 33 und die Rohrleitung 34 mittels de:# Wasserpumpe 35 dem Behälter 36 entnommen wird. Das über die Oberfläche der Kühlkörper 14915916 und 17 fließende Wasser friert teilweise an den Kühlkörpern an, während der andere abgekühlte Teil desselben über Leitklappen 46 bis 55 die Auffangsvorrichtungen 57.38,39 und 40 und die Rohrleitung 41 in den Behälter j6 zurückgeführt wird.These disadvantages can be circumvented if, according to the invention, cracking ice is produced while avoiding the salt water bath, by freezing fresh water directly on the surface of cooling elements which are filled with the coolant ("Aiiiiiloniak") and thereby a complete automation of the production process is achieved. According to the Fig. 1 Darge.-presented basic arrangement is obtained in a known manner by means of a compressor 1 via a condenser 2 and a pressure level regulator 5 in a separator 4 liquid Am-D nionia with a temperature of -10 degrees C. About The pipeline 5 and via -3-way Iilagrietventibe or hydraulically controlled 3-We, -> 1 valves 6,7,8 and 9 as well as the pipelines 10,11,12 and 15 are the cooling lines 14,15,16, 17 filled with ammonia. The ammonia gas produced in the cooling elements is transferred to the separator 4 via the pipes 18, 19, 20 and 21 via magnets or hydraulics ück led. Passed over the surface aer heatsink 14,15,16 and 17'wizld of perforated pipes 26, 27.28,29 emerging fresh water, Däs on the Zweiw "egventile 30.31,32 and 33 and the pipe 34 by de: # water pump 35 to the tank 36 is removed. The water flowing over the surface of the heat sinks 14915916 and 17 partially freezes on the heat sinks, while the other cooled part of the same is returned to the container j6 via guide flaps 46 to 55, the collecting devices 57, 38, 39 and 40 and the pipeline 41.
Durch diesen ununterbrochen ablaufenden Kreislauf wird einerseits das Süßwasser in behälter j6 auf 0 Grad C abgekühlt und andererseits auf den Kühlkörpern 14,15,16 und 17 eine Lisschicht von 2 em Dicke nach ca. 1 1/3 Stunden entstehen.Through this uninterrupted cycle, on the one hand the fresh water in container j6 is cooled to 0 degrees C and on the other hand a layer of pis 2 em thick is formed on the heat sinks 14, 15, 16 and 17 after about 1 1/3 hours.
Aach dieser Zeit wirü für den ersten Kühlkörper 14 dieser Vorgang dadurch unterl)rochen, daß aus der Kompreasordruckseite über das gesteuerte Zweiwegventil 42, die Rohrleitung 45 das t> tD gesteuerte Dreiwe-ventil 22 und die Rohrleitung lb neißes Amrioniakgas in diesen liineUn ##epreßt wird. Daaurch wird das flüssige Amtioniak aus dem Kühlkörper 14 durch die Rohrleitung 10 über das Dreiviegventil 6 und die Rohrleitung 114 in den Ausweichbehälter 45 -edrücht.Gleichzeitig i-.rird das Zweiwegventil j0 für die Süßwasserzufuhr gesperrt.After this time, this process for the first heat sink 14 was interrupted by the fact that from the compressor pressure side via the controlled two-way valve 42, the pipeline 45, the t> tD controlled three-way valve 22 and the pipeline lb white amrionia gas was pressed into this lineUn ## will. As a result, the liquid amionia is pressed out of the heat sink 14 through the pipeline 10 via the Dreivieg valve 6 and the pipeline 114 into the evacuation container 45. At the same time, the two-way valve j0 for the fresh water supply is blocked.
Unter dem Einfluß der Lr#.iär-,.ung des Kühlkörpers 14 zerspringt die angefrorene Eisschicht und fällt auf die Leitklappen 46 und 47 der Wasserauffangvorrichtung 37 woduren aiese in die strichlierte Lage kippen und dadurch die Wasserauffangvorrichtung 37 zudecken.Under the influence of the heat sink 14, the frozen layer of ice bursts and falls onto the guide flaps 46 and 47 of the water collecting device 37 causing it to tip into the dashed position and thereby cover the water collecting device 37 .
Gleichzeitig wird ein Kontakt betätigt,der die Ventile J(J,22 und 42 sofort in die Ausgangslage bringt, wt-ihrend das Ventil 6 CD mit einer solchen Verzögerung in die Ausgangslage gebracht wird, daß das im Ausweichbehälter 45 befindliche flüssige Ammoniak in Aden Kühlhörper 14 zurück fließen kann. Damit kann der Eisbildungsvorgang von Neuem beginnen.In Zeitabständen von 20 Minuten* wiederholt sich der oben beschriebene Vorgang fortschreitend bei den Kühlelementen 15,16,17. At the same time, a contact is actuated which immediately brings the valves J (J, 22 and 42 into the initial position, while valve 6 CD is brought into the initial position with such a delay that the liquid ammonia in the alternative container 45 enters the cooling body 14. This means that the ice formation process can begin again. The process described above is progressively repeated for the cooling elements 15, 16, 17 at intervals of 20 minutes *.
Von besonderer Bedeutung für das beschriebene Eisi:-,ewiimungs-. verfahren ist das Erfordernis einer so großen Anzahl von Kühlkörpern daß für den Enteisungsvorgang an einem Kühlelement, die übrigen noch mit flüssigen Ammoniak gefüllten Kühlelemente genügend Ammoniakgas für dep Kompressor 1 nachliefern, daß den erforderlichen Gasdruck und die benötigte Gastemperat-,-ir zum Ent-' eisungsvorgang gewähyleisten.Of particular importance for the described Eisi: -, ewiimungs-. procedure is the requirement of such a large number of heat sinks that for the de-icing process on a cooling element, the remaining cooling elements still filled with liquid ammonia supply enough ammonia gas for dep compressor 1 that the required gas pressure and the required gas temperature -, - ir to Ent- ' icing process to choose.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0049714 | 1966-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1501180A1 true DE1501180A1 (en) | 1970-03-19 |
Family
ID=7103225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19661501180 Pending DE1501180A1 (en) | 1966-07-16 | 1966-07-16 | Process for the production of broken ice by means of direct cooling |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1501180A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485169A1 (en) * | 1980-06-20 | 1981-12-24 | Electricite De France | IMPROVEMENTS TO HOT WATER SUPPLY FACILITIES COMPRISING A THERMODYNAMIC CIRCUIT |
FR2556082A1 (en) * | 1983-12-02 | 1985-06-07 | Frical | Method for deicing a tubular, multi-tubular or plate exchanger allowing removal of a deposit of ice on an aqueous solution to be cooled at the limit of its freezing point |
-
1966
- 1966-07-16 DE DE19661501180 patent/DE1501180A1/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485169A1 (en) * | 1980-06-20 | 1981-12-24 | Electricite De France | IMPROVEMENTS TO HOT WATER SUPPLY FACILITIES COMPRISING A THERMODYNAMIC CIRCUIT |
EP0042795A1 (en) * | 1980-06-20 | 1981-12-30 | Electricite De France | Hot water installation comprising a thermodynamic circuit |
FR2556082A1 (en) * | 1983-12-02 | 1985-06-07 | Frical | Method for deicing a tubular, multi-tubular or plate exchanger allowing removal of a deposit of ice on an aqueous solution to be cooled at the limit of its freezing point |
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