EP0500019A1 - Système de production d'eau froide - Google Patents

Système de production d'eau froide Download PDF

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Publication number
EP0500019A1
EP0500019A1 EP92102613A EP92102613A EP0500019A1 EP 0500019 A1 EP0500019 A1 EP 0500019A1 EP 92102613 A EP92102613 A EP 92102613A EP 92102613 A EP92102613 A EP 92102613A EP 0500019 A1 EP0500019 A1 EP 0500019A1
Authority
EP
European Patent Office
Prior art keywords
container
water
connection
ice
production system
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.)
Granted
Application number
EP92102613A
Other languages
German (de)
English (en)
Other versions
EP0500019B1 (fr
Inventor
Ulrich Dipl.-Ing. Klüe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0500019A1 publication Critical patent/EP0500019A1/fr
Application granted granted Critical
Publication of EP0500019B1 publication Critical patent/EP0500019B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F25C5/18—Storing 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine

Definitions

  • the invention has for its object to reduce the variety of connection options and in particular the control effort in the case of delivery of cooling power while the chiller is in operation.
  • the cooling power of the refrigeration system can be increased further by switching the chiller from ice to water operation.
  • the temperature of the trickle heat exchanger is set so that ice no longer forms on it, but that the water trickling over it is only cooled to just above freezing point. Since the entire surface of the heat exchanger is then constantly available for cooling without an ice covering that reduces the thermal conductivity, the refrigerator can dissipate significantly larger amounts of heat than during ice operation.
  • the transition region between the return connection and the suction connection expediently lies within the container. However, this is not absolutely necessary.
  • the flow connection and the return connection are expediently provided in opposite height regions of the container, so that a short circuit between these connections is avoided in the event of temperature stratification.
  • the return connection and the suction connection should be arranged in the deepest area of the container, so that the cold water can be removed from the upper area of the container, where, due to the ice accumulating there, the greatest likelihood of sufficiently deeply cooled water even after extensive use Melting of the ice supply is given. In this context, it is advisable to provide a level control of the water supply.
  • the container can contain a gassing device.
  • the bubbles rising from the gassing device arranged in the lower part of the container set the ice-water mixture or the water in motion and thereby generate heat exchange between the warm return water and the cold water or ice reserve. With a sufficiently uniform distribution, they also cause an apparent reduction in the specific water weight, which causes the ice to sink. This is not only useful in terms of heat exchange, but also prevents the ice pieces from growing together, which can otherwise be observed on the surface.
  • Fumigation devices of this type are known from DE-PS 64 54 17, for swirling the liquid in a cold store, to be set directly in the milk churns to be cooled. The heat exchange between the liquid and the chamber walls is to be increased in this way.
  • gas outlet openings of the gassing device are expediently distributed uniformly over the entire cross section of the container.
  • the gassing is provided differently in some areas; For example, it can remain limited to individual sectors of the container, as a result of which an upward flow is caused in these sectors and a downward flow in the remaining area.
  • the gassing device is expediently arranged above it, namely at such a high height distance that there is certainty that no gas bubbles are entrained towards the circulation pump, the Function could be affected.
  • the features of the invention make a vertical flow appear expedient, whereas in the prior art a horizontal flow is predominantly sought.
  • the effect of the vertical flow can be further increased in that the container or the part of the container provided for storing the ice-water mixture has one has embossed vertical extension.
  • the ratio of its height to diameter should therefore be over 0.5, better over 1, advantageously over 1.3.
  • This feature is also in an advantageous interrelation with the desire to reduce as little space as possible and to reduce construction costs.
  • the level of the ice-water mixture is expediently on the order of 4 m and above.
  • the cylindrical, silo-like container 1 contains in its lower area a space 2 for storing the water or ice-water mixture.
  • the cold water or ice production takes place on the heat exchanger 3 of a refrigeration machine, which is arranged in the upper space of the container 1 and from which the water or ice can fall directly into the space 2.
  • a device 4 for level control ensures that the water or ice-water mixture always has approximately the intended level.
  • Cold water is drawn off for the purpose of delivering cooling power via a flow connection 5, which is arranged a little below the level of the ice-water mixture and is protected on the inside of the container from the entry of ice pieces by a perforated plate 6.
  • a return connection 7, which is provided near the bottom of the container 1 the heated water is returned to the container.
  • the return connection 7 ends at 8 in the funnel-shaped suction area 9 of the suction connection 10, which leads to the pump 11, which causes the circulation of the water contained in the container through the heat exchanger 3 via the line 12.
  • the temperature stratification has less of an effect on the temperature of the cold water drawn off, the greater the ratio of the height to the diameter of the container part filled with the ice-water mixture or water. At the same time, gravity convection leads to better mixing, the larger this ratio. According to the invention, it should therefore be greater than 0.5, preferably greater than 1, more preferably greater than 1.3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP19920102613 1991-02-21 1992-02-17 Système de production d'eau froide Expired - Lifetime EP0500019B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9102049U 1991-02-21
DE9102049 1991-02-21
DE9110981U DE9110981U1 (de) 1991-02-21 1991-09-04 Kaltwassererzeugungsanlage
DE9110981U 1991-09-04

Publications (2)

Publication Number Publication Date
EP0500019A1 true EP0500019A1 (fr) 1992-08-26
EP0500019B1 EP0500019B1 (fr) 1993-05-26

Family

ID=25957878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920102613 Expired - Lifetime EP0500019B1 (fr) 1991-02-21 1992-02-17 Système de production d'eau froide

Country Status (4)

Country Link
EP (1) EP0500019B1 (fr)
DE (2) DE9110981U1 (fr)
DK (1) DK0500019T3 (fr)
ES (1) ES2043473T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538331A1 (de) * 1995-10-14 1997-04-17 Sonotec Dr Zur Horst Meyer & M Verfahren und Vorrichtung zur Kontrolle des Eisstandes bei der Kaltwassererzeugung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH171820A (de) * 1933-08-25 1934-09-15 Sulzer Ag Mit Aufspeicherung arbeitende Kälteanlage, insbesondere für künstliche Eisbahnen.
US2056970A (en) * 1933-04-18 1936-10-13 Charles S Leopold Cooling system
DE668100C (de) * 1937-04-07 1938-11-25 Julius Pintsch Kom Ges Einrichtung zur Spericherung von kleinstueckigem Eis
US2212275A (en) * 1938-03-14 1940-08-20 Mojonnier Bros Co Apparatus for treating fluids
US2299188A (en) * 1940-03-13 1942-10-20 Ralph E Stork Refrigeration system
GB668001A (en) * 1949-04-27 1952-03-12 Sabroe & Co As Thomas Ths Method and apparatus for refrigeration by a circulating cooling medium
FR2125172A1 (en) * 1971-02-11 1972-09-29 Guillet Yves Ice-building plant - with air turbulence to improve heat transfer between water and ice
DE2900372A1 (de) * 1978-01-06 1979-07-12 Laszlo Simon Anlage zum speichern von kontinuierlich erzeugter kaelte und zum stossweisen abgeben mindestens eines teils der gespeicherten kaelte
US4233960A (en) * 1978-07-21 1980-11-18 Johnson Steven A Heat storage apparatus and method
GB2225845A (en) * 1988-11-24 1990-06-13 Thermal Engineering Systems Li Ice bank coolers

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056970A (en) * 1933-04-18 1936-10-13 Charles S Leopold Cooling system
CH171820A (de) * 1933-08-25 1934-09-15 Sulzer Ag Mit Aufspeicherung arbeitende Kälteanlage, insbesondere für künstliche Eisbahnen.
DE668100C (de) * 1937-04-07 1938-11-25 Julius Pintsch Kom Ges Einrichtung zur Spericherung von kleinstueckigem Eis
US2212275A (en) * 1938-03-14 1940-08-20 Mojonnier Bros Co Apparatus for treating fluids
US2299188A (en) * 1940-03-13 1942-10-20 Ralph E Stork Refrigeration system
GB668001A (en) * 1949-04-27 1952-03-12 Sabroe & Co As Thomas Ths Method and apparatus for refrigeration by a circulating cooling medium
FR2125172A1 (en) * 1971-02-11 1972-09-29 Guillet Yves Ice-building plant - with air turbulence to improve heat transfer between water and ice
DE2900372A1 (de) * 1978-01-06 1979-07-12 Laszlo Simon Anlage zum speichern von kontinuierlich erzeugter kaelte und zum stossweisen abgeben mindestens eines teils der gespeicherten kaelte
US4233960A (en) * 1978-07-21 1980-11-18 Johnson Steven A Heat storage apparatus and method
GB2225845A (en) * 1988-11-24 1990-06-13 Thermal Engineering Systems Li Ice bank coolers

Also Published As

Publication number Publication date
DE9110981U1 (de) 1991-10-24
DE59200003D1 (de) 1993-07-01
EP0500019B1 (fr) 1993-05-26
ES2043473T3 (es) 1993-12-16
DK0500019T3 (da) 1993-10-18

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