EP0061697B1 - Elément de stockage du froid, avec éléments de montage et aillettes réglant l'air - Google Patents

Elément de stockage du froid, avec éléments de montage et aillettes réglant l'air Download PDF

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Publication number
EP0061697B1
EP0061697B1 EP82102391A EP82102391A EP0061697B1 EP 0061697 B1 EP0061697 B1 EP 0061697B1 EP 82102391 A EP82102391 A EP 82102391A EP 82102391 A EP82102391 A EP 82102391A EP 0061697 B1 EP0061697 B1 EP 0061697B1
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EP
European Patent Office
Prior art keywords
cold storage
brine
elements
shell
storage element
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.)
Expired
Application number
EP82102391A
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German (de)
English (en)
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EP0061697A1 (fr
Inventor
Peter Volker Grosskopf
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.)
Kunststoff- und Kaltetechnik Grosskopf GmbH
Original Assignee
Kunststoff- und Kaltetechnik Grosskopf GmbH
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25792142&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0061697(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kunststoff- und Kaltetechnik Grosskopf GmbH filed Critical Kunststoff- und Kaltetechnik Grosskopf GmbH
Priority to AT82102391T priority Critical patent/ATE6692T1/de
Publication of EP0061697A1 publication Critical patent/EP0061697A1/fr
Application granted granted Critical
Publication of EP0061697B1 publication Critical patent/EP0061697B1/fr
Expired 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/005—Devices using other cold materials; Devices using cold-storage bodies combined with heat exchangers

Definitions

  • the invention relates to a cold storage element in a refrigerated vehicle, with a jacket of substantially rectangular shape, which contains a eutectic brine set for cold storage to a specific freezing point, in which one or more pipelines carrying a refrigerant run in the form of a hairpin to freeze the brine, the Element in cross section is formed as an upright rectangle with vertical side walls, and a holder for such cold storage elements and air control slats.
  • a further disadvantage is that, in the case of elements in plate form, these can only be short for absorbing the static pressure due to acceleration states when braking or starting the vehicle to limit the effective liquid column, and that when using metal pipes running lengthwise through the structure, these have a gelling effect Cold storage agents are filled, which has poorer thermal properties.
  • a rectangular-shaped cold storage element filled with a eutectic brine is also known (FR-A-2 054 777), in which pipelines carrying refrigerant run in the form of a hairpin for freezing the brine and which is arranged in the structure of a refrigerated vehicle.
  • the known element has a jacket with relatively large cantilevered surfaces and is therefore at high risk of breakage when static pressures occur, for example when braking a vehicle as a result of negative acceleration conditions, for example in the order of magnitude of 1 to 3 g.
  • the invention has for its object to provide cold storage elements in a suitable shape and effect, as well as options for their attachment, with which the aforementioned disadvantages and difficulties are overcome, which can be produced economically and in particular Compared to the known elements in relation to the content of eutectic brine, they have significantly larger heat transfer surfaces and are particularly suitable for convective heat exchange. It is intended to create a cold storage element that can be arranged through the entire length of the vehicle body and that can withstand the special stresses caused by short-term static pressure peaks in special acceleration conditions without risk of destruction.
  • a cold storage element of the type mentioned the element being designed in cross-section as an upright rectangle with vertical side walls in that the element lengthwise through a web connecting the side walls approximately centrally in two cross-sectionally rectangular chamber is divided that for further subdivision of the chambers in the longitudinal direction at intervals, transverse walls are arranged, that the pipeline of the refrigerant in the form of a hairpin runs lengthways through the two chambers, and that the jacket and the web consist in one piece of plastic.
  • the cold storage element according to the invention for the first time to produce the element in cross-section as an upright rectangle with vertical plastic side walls in an overall length corresponding to the vehicle body, without the eutectic brine filled in when braking or starting up being a hazard generated by extreme static pressure peaks.
  • the static pressure in particular when the vehicle used is braked sharply, is influenced by the web connecting the side walls in cooperation with the in the longitudinal direction in Spacing arranged transverse walls, wherein the resulting cell-like structure of the entire interior enclosed by the outer jacket, a high degree of mechanical stability is achieved by increased moments of resistance around the longitudinal and transverse axes of the element.
  • This also results in the possibility of producing the element from plastic under the given loads and stresses, which means that the demand for economical manufacturing possibilities can be fulfilled in an ideal manner.
  • the cold storage element it can advantageously be provided that there are openings facilitating the filling of the brine in the transverse walls.
  • the plastic is transparent, and thus enables both the filling and the freezing state of the brine to be checked.
  • Simple non-return flaps can be arranged in the openings in the transverse walls, which prevent the brine from being displaced in the event of negative or positive acceleration states of the vehicle.
  • a separating agent such as silicone oil or the like, which retards the formation of ice and facilitates the detachment of ice, can also be advantageously applied to the surface of the jacket.
  • the plastic surface can advantageously also have a separating or wax-like surface (PTFE, PE).
  • a holder for attaching the cold storage elements advantageously has cross members for receiving the elements, which can be arranged regularly at a distance from one another.
  • an adjustable or thermostatically controlled lamella extending over the element length can be arranged, the width of which corresponds approximately to the gap width and which can be mounted centrally to compensate for the forces acting on it.
  • a gutter for collecting the defrost water is preferably arranged below each rectangular shell with the holder, the opening of which points upwards and the width of which exceeds that of the shell, the faster defrosting within each gutter Elements a pipe for passing heating fluid or an electric heating element can be arranged.
  • conventional cold storage elements consist of plates or tubes filled with gelled brine.
  • the storage element according to the invention consists of a rectangular jacket 1, which has in the middle a longitudinal web 2 connecting the two side walls 3, so that an upper chamber 5 and a lower chamber 6 are formed for the eutectic brine.
  • a tube 4 for the refrigerant runs like a hairpin, which brings the brine to the desired low temperature and freezes it.
  • the elements are made of plastic, namely polyethylene and their surface is coated with a release agent, e.g. B. silicone oil provided. Because of this release agent, the depositing of ice is either prevented or the ice cannot form a firm connection with the plastic surface, so that it falls off automatically as a result of the movement of the vehicle while driving.
  • a release agent e.g. B. silicone oil provided. Because of this release agent, the depositing of ice is either prevented or the ice cannot form a firm connection with the plastic surface, so that it falls off automatically as a result of the movement of the vehicle while driving.
  • V-shaped channels 9 can be arranged below the elements, in which heating rods 10 run and whose opening width of the opening pointing upwards is greater than the width of the cold storage elements.
  • the draining water is collected and drained off in the channels, so that it can also be submerged during the loaded state of the vehicle body is possible or the cold storage elements can also be used in the plus range, since condensate is also drained off via the channels 9 and cannot impair the goods to be cooled.
  • the cold storage elements are mounted on cross members 11 which are fixedly arranged in the vehicle body and which can be at a considerable distance from one another, since the elements bear better due to the favorable cross-sectional design. In the case of shorter and smaller vehicles, it is sufficient if the crossbeams are on the front and rear walls of the body and this enables optimal use of the cooled space.
  • the cold storage elements are at a distance from one another which corresponds approximately to their width and in the gap or below the gap between two adjacent elements there is a lamella 12 which is mounted in the center and which, due to its setting, controls the air flow passing through the elements regulates.
  • the fins 12 can be set automatically, mechanically via a temperature bellows without any additional auxiliary energy, but they can also be set by a thermostat controlled by an electric motor.
  • the cold storage elements according to the invention it is possible for the first time in the cold storage elements according to the invention to use long rectangular sheaths or tubes made of plastic without the filled eutectic brine having to be gelled, as a result of which the cold storage capacity would be reduced.
  • the static pressure in particular when the vehicle is braked sharply, is absorbed by the longitudinal web 2 and the transverse webs 7, the filling of the elements being made possible by the bores 8, but on the other hand a movement of the refrigerant is suppressed to such an extent that the use of rectangular Plastic jackets is possible.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (10)

1. Elément d'accumulation de frigories d'un véhicule frigorifique, comprenant une enveloppe de forme sensiblement rectangulaire contenant une saumure présentant pour l'accumulation de frigories, à un point de congélation défini, des propriétés eutectiques, dans laquelle sont prévues une ou plusieurs conduites en forme de U pour l'amenée d'agent frigorifique afin d'assurer la congélation de la saumure, ledit élément présentant en coupe la forme d'un rectangle debout et comportant des parois latérales verticales, élément caractérisé en ce qu'il est subdivisé en deux chambres (5, 6) de section rectangulaire par une paroi (2) reliant sensiblement au milieu lesdites parois latérales (3), en ce qu'il comprend, pour une subdivision supplémentaire des chambres (5, 6), des cloisons transversales (7) espacées et placeés longitudinalement, en ce que la conduite (4) en U de l'agent frigorifique traverse les deux chambres selon leur longueur et en ce que l'enveloppe (1) et la paroi (2) sont constitués par une seule pièce en un matériau plastique.
2. Elément d'accumulation de frigories selon la revendication 1, caractérisé en ce que, dans les cloisons transversales (7), sont prévues des ouvertures (8) pour faciliter l'introduction de la saumure.
3. Elément d'accumulation de frigories selon la revendication 1 ou 2, caractérisé en ce que le matériau plastique est transparent et permet le contrôle du niveau de congélation de la saumure.
4. Elément d'accumulation de frigories selon la revendication 1 ou 2, caractérisé en ce que les ouvertures des parois transversales (7) sont munies de clapets anti-retour simples qui permettent d'empêcher que ne se produisent des déplacements de saumure lors des accélérations du véhicule.
5. Elément d'accumulation de frigories selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que la surface de l'enveloppe (1) est revêtue d'un agent permettant de retarder la formation de glace et de faciliter l'enlèvement de la glace produite tel qu'une huile de silicone ou similaire.
6. Elément d'accumulation de frigories selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que la surface du matériau plastique constitue en soi une surface non adhérente ou cireuse (PTFE, PE).
7. Elément d'accumulation de frigories selon une quelconque des revendications précédentes caractérisé en ce que les éléments sont supportés par des supports transversaux de la structure du véhicule, et sont répartis à distance régulière les uns des autres et en ce qu'est disposée dans ou sous l'intervalle entre éléments voisins, une lamelle (12) réglable ou contrôlée thermos- tatiquement qui est disposée longitudinalement par rapport à l'élément et dont la largeur est approximativement égale à la largeur dudit intervalle.
8. Fixation selon la revendication 7 caractérisé en ce que la lamelle (12) est articulée en son milieu.
9. Fixation selon une des revendications 7 et 8 caractérisée en ce qu'est disposée en dessous de chaque enveloppe rectangulaire (1), une gouttière étroite (9) pour la réception de l'eau de dégivrage dont l'ouverture est dirigée vers le haut et dont la largeur est supérieure à la largeur de l'enveloppe en laissant cependant un passage suffisant pour la circulation de l'air.
10. Fixation selon la revendication 9, caractérisée en ce que, pour le dégivrage rapide de l'élément, est prévu à l'intérieur de la gouttière (9) une conduite tubulaire de passage d'un fluide de chauffage ou une barre de chauffage électrique (10).
EP82102391A 1981-03-26 1982-03-23 Elément de stockage du froid, avec éléments de montage et aillettes réglant l'air Expired EP0061697B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102391T ATE6692T1 (de) 1981-03-26 1982-03-23 Kaeltespeicherelement, halterungen und luftregellamellen dafuer.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3111863 1981-03-26
DE3111863A DE3111863C2 (de) 1981-03-26 1981-03-26 Kältespeicherelement
US06/364,355 US4422305A (en) 1981-03-26 1982-04-01 Cold storage element, mounting assembly and air control slats therefor

Publications (2)

Publication Number Publication Date
EP0061697A1 EP0061697A1 (fr) 1982-10-06
EP0061697B1 true EP0061697B1 (fr) 1984-03-14

Family

ID=25792142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102391A Expired EP0061697B1 (fr) 1981-03-26 1982-03-23 Elément de stockage du froid, avec éléments de montage et aillettes réglant l'air

Country Status (3)

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US (1) US4422305A (fr)
EP (1) EP0061697B1 (fr)
DE (1) DE3111863C2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501126A (en) * 1983-03-10 1985-02-26 Engineered Air Systems, Inc. Method and apparatus for liquid freezing
JPS618597A (ja) * 1984-06-21 1986-01-16 Sumitomo Chem Co Ltd 蓄熱材パネル用中空板状体および蓄熱材パネルの製造方法
GB8519507D0 (en) * 1985-08-02 1985-09-11 Temework Ltd Cooling devices
US5279360A (en) * 1985-10-02 1994-01-18 Modine Manufacturing Co. Evaporator or evaporator/condenser
DE3614731A1 (de) * 1986-04-30 1987-11-05 Ernst Mehling Kaeltespeicherelement zum einbau in kuehlraeumen
IT1203841B (it) * 1987-03-19 1989-02-23 Frigotecnica Ind Chiavenna Spa Accumulatore di frigorie a soluzione eutettica
US4976910A (en) * 1987-11-30 1990-12-11 Richard Gatley Method of making a cooling device
DE3814238A1 (de) * 1988-04-27 1989-11-09 Holzer Walter Nofrost-kuehlverfahren fuer einen kuehlbereich ueber 0(grad) c
US5172567A (en) * 1991-05-29 1992-12-22 Thermo King Corporation Eutectic beams for use in refrigeration
US5211900A (en) * 1991-06-28 1993-05-18 Thermo King Corporation Method of manufacturing an eutectic beam having multi-functional support members
EP0554482A1 (fr) * 1992-02-05 1993-08-11 C B F INTERNATIONAL Srl Accumulateur de froid
IT1269458B (it) * 1994-01-24 1997-04-01 N R Dev L T D Metodo e apparato per l'assorbimento di calore e il mantenimento in condizioni ottimali a temperatura prefissata di prodotti freschi
US5524453A (en) * 1994-08-01 1996-06-11 James; Timothy W. Thermal energy storage apparatus for chilled water air-conditioning systems
GB9613421D0 (en) * 1996-06-26 1996-08-28 Boc Group Plc Refrigerated Container
DE19950673C1 (de) * 1999-10-21 2001-04-19 Behr Gmbh & Co Kältespeicher, insbesondere für ein Kraftfahrzeug
DE10023949C1 (de) * 2000-05-16 2001-11-22 Bosch Gmbh Robert Wärmetauscher, insbesondere Mikrostruktur-Wärmetauscher
US7237404B2 (en) * 2004-12-02 2007-07-03 Cold Car S.R.L. Frigorie accumulator

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US2624554A (en) * 1953-01-06 Evaporator structure
FR497261A (fr) * 1918-09-28 1919-12-02 Sulzer Ag Gouttière pour tuyauteries d'installations frigorifiques
US1834009A (en) * 1928-02-23 1931-12-01 James A Tillinghast Refrigerating system
US2241411A (en) * 1939-07-03 1941-05-13 Kold Hold Mfg Company Refrigeration
US2499736A (en) * 1946-09-06 1950-03-07 Kleen Nils Erland Af Aircraft refrigeration
US2486822A (en) * 1946-12-23 1949-11-01 George Orley Freezer plate
DE943168C (de) * 1952-08-17 1956-05-17 Teves Kg Alfred Tauwassersammelrinne fuer Kaeltemittelverdampfer
US2764876A (en) * 1955-02-07 1956-10-02 Parcaro Michael Refrigeration and air conditioning
DE1551365A1 (de) * 1967-04-05 1970-04-02 Eris Kuehlung Erich Schwarz Vorrichtung zum Kuehlen von Lagerraeumen,insbesondere von Transportbehaeltern und Laderaeumen von Fahrzeugen
FR2054777A5 (en) * 1969-07-25 1971-05-07 Renaux Emile Eutectic plaque units
CH527590A (de) * 1971-04-16 1972-09-15 Graf Heinrich Verfahren zur Kühlung einer Kühlvitrine und zur gleichzeitigen Erhöhung der relativen Luftfeuchtigkeit in derselben und Kühlvitrine zur Durchführung des Verfahrens
CH532233A (de) * 1971-12-09 1972-12-31 Koch Florian Tragbarer Kühlmasse-Behälter
DE2627022C2 (de) * 1976-06-16 1983-12-22 Peter Volker Dipl.-Ing. 4300 Essen Großkopf Kältespeicherelement

Also Published As

Publication number Publication date
US4422305A (en) 1983-12-27
DE3111863A1 (de) 1982-12-16
DE3111863C2 (de) 1984-05-10
EP0061697A1 (fr) 1982-10-06

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