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DE202005021335U1 - Circulating air cooling machine for eutectic plate, has refrigeration unit with evaporator and cross-flow ventilator, which produces air flow to flow in eutectic plates, and perforated plates arranged between evaporator and eutectic plates - Google Patents

Circulating air cooling machine for eutectic plate, has refrigeration unit with evaporator and cross-flow ventilator, which produces air flow to flow in eutectic plates, and perforated plates arranged between evaporator and eutectic plates Download PDF

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Publication number
DE202005021335U1
DE202005021335U1 DE202005021335U DE202005021335U DE202005021335U1 DE 202005021335 U1 DE202005021335 U1 DE 202005021335U1 DE 202005021335 U DE202005021335 U DE 202005021335U DE 202005021335 U DE202005021335 U DE 202005021335U DE 202005021335 U1 DE202005021335 U1 DE 202005021335U1
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DE
Germany
Prior art keywords
evaporator
plates
eutectic
cooling machine
flow
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 - Lifetime
Application number
DE202005021335U
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German (de)
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.)
EHLERT DESINGER SYLVIA
EHLERT-DESINGER SYLVIA
Original Assignee
EHLERT DESINGER SYLVIA
EHLERT-DESINGER SYLVIA
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 EHLERT DESINGER SYLVIA, EHLERT-DESINGER SYLVIA filed Critical EHLERT DESINGER SYLVIA
Priority to DE202005021335U priority Critical patent/DE202005021335U1/en
Priority claimed from DE102005029907.5A external-priority patent/DE102005029907C5/en
Publication of DE202005021335U1 publication Critical patent/DE202005021335U1/en
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
    • 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
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
    • 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
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/082—Devices using cold storage material, i.e. ice or other freezable liquid disposed in a cold storage element not forming part of a container for products to be cooled, e.g. ice pack or gel accumulator
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0654—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the side
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0664—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the side
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/28—Quick cooling

Landscapes

  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The machine has a split refrigeration unit (3) comprising an evaporator (4) and a cross-flow ventilator (2), which produces an air flow to flow in eutectic plates. The evaporator is arranged while operating the eutectic plates in the air flow. Air guiding perforated plates (6) are arranged between the evaporator and the eutectic plates. The evaporator is directly joined to the air guiding perforated plates, where the eutectic plates are arranged in a rack (1). The perforated plates are arranged between the evaporator and the rack.

Description

Die vorliegende Erfindung betrifft eine Umluftkühlmaschine gemäß dem Oberbegriff des Anspruchs 1.The The present invention relates to a circulating air cooling machine according to the preamble of claim 1.

Es ist bekannt, dass eutektische Platten (Kühlakkus) eine bestimmte Zeit brauchen, um in kalter Umgebungstemperatur ihre volle Kältespeicherkapazität zu erreichen. Zudem sind die Platten nach dem Rücklauf aus dem Versand an der Oberfläche feucht, diese Oberflächenfeuchtigkeit kann die Einfrierzeit einer Platte verzögern.It it is known that eutectic plates (cold packs) a certain time need to reach their full cold storage capacity in cold ambient temperature. In addition, the plates are after the return from shipping to the Surface moist, this surface moisture can delay the freezing time of a plate.

Es ist auch bekannt, dass die Umströmung von kalter Luft einen höheren und schnelleren Wärmeaustausch bei eutektischen Platten oder sonstigen zu kühlenden Stoffen bedeutet.It is also known that the flow around cold air a higher and faster heat exchange in eutectic plates or other substances to be cooled.

Eine Umluftkühlmaschine der eingangs genannten Art ist aus der EP 1 475 589 A2 bekannt, bei der eutektische Platten in vorhandene Tiefkühlräume oder Kühlräume gestellt werden. Dort findet ein Wärmeaustausch über die Luft statt, wobei die benötigten Anströmgeschwindigkeiten der Luft durch Axialventilatoren oder statische Einwirkung der Luft erreicht werden. Dieses bedeutet aber, einen je nach Ausführung des Eutektikums bestimmten Zeitfaktor x, der von den Faktoren einer gleichmäßigen und schnellen Umspülung mit der entsprechenden geforderten Lufttemperatur abhängt.A circulating air cooling machine of the type mentioned is from the EP 1 475 589 A2 in which eutectic plates are placed in existing deep-freeze rooms or cold rooms. There, a heat exchange takes place via the air, wherein the required flow velocities of the air are achieved by axial fans or static action of the air. However, this means a time factor x, which depends on the design of the eutectic, and which depends on the factors of uniform and rapid flushing with the corresponding required air temperature.

Es ist auch bekannt, dass eutektische Platten im Umlaufverfahren für den Versand von Lebensmitteln benötigt werden. Die Platten werden in einen Thermobehälter integriert und halten die entsprechend geforderten Temperaturen in diesem. Eutektische Platten werden nach Gebrauch in Regale gelegt und anschließend in Kühlräume integriert. Diese systemgebundene logistische Verarbeitung ist gegenüber der Herstellung von Trockeneis auch noch energiewirtschaftlich von Vorteil. Einige Lebensmittelhersteller haben aber keinen Tiefkühlraum und sind hinsichtlich der Logistik weiterhin auf die Abnahme von Trockeneis angewiesen.It It is also known that eutectic plates are in circulation for shipping needed by food become. The plates are integrated into a thermo container and hold the correspondingly required temperatures in this. eutectic Plates are shelved after use and then placed in shelves Integrated refrigerated rooms. This system-bound logistic processing is opposite to the Production of dry ice also still energetically beneficial. But some food manufacturers do not have a freezer room and with regard to logistics, continue to rely on the purchase of dry ice reliant.

Der vorliegenden Erfindung liegt das Problem zugrunde, mit geringstem Energieaufwand und Platzbedarf eine schnellere Abkühlung der Platten oder Stoffe zu erzielen.Of the present invention is based on the problem with the least Energy consumption and space required a faster cooling of the To achieve plates or fabrics.

Dieses Problem wird durch eine Umluftkühlmaschine mit den im Patentanspruch 1 aufgeführten Merkmalen gelöst. Die Unteransprüche betreffen bevorzugte Ausgestaltungen der Erfindung.This Problem is caused by a circulating air cooling machine solved with the features listed in claim 1. The under claims relate to preferred embodiments of the invention.

Dabei kann eine Umluftkühlmaschine bis – 40 C° mit eigenem Kälteaggregat und einer Luftführung auf engsten Raum mit vorheriger Trocknung der eutektischen Platten und gezielter Luftführung auf verschiedenen Ebenen vorgesehen sein. Erzielt werden kann dies durch das Zusammenwirken von frequenzabhängig gesteuerten Querstromventilatoren, Lochluftleitblechen und entsprechenden Kanälen. Die erreichten Luftgeschwindigkeiten sind größer als 4 m/s und werden zum Trocknen und Kühlen benötigt. Die Luft wird ähnlich wie in einem Turboverfahren erst komprimiert, gerichtet und beschleunigt weiter geführt.there can a recirculating air cooling machine to - 40 C ° with own refrigeration unit and an air duct in the narrowest space with prior drying of the eutectic plates and targeted airflow be provided at different levels. This can be achieved through the interaction of frequency-dependent controlled cross-flow fans, perforated air baffles and corresponding channels. The reached air velocities are greater than 4 m / s and become the Drying and cooling needed. The air becomes similar as in a turbo process first compressed, directed and accelerated continued.

Die mit der Erfindung erreichten Vorteile bestehen insbesondere darin, dass eutektische Platten und sonstige Stoffe schneller verwendungsfähig im Umluftbetrieb gekühlt werden.The particular advantages of the invention are that eutectic plates and other substances can be used more quickly in recirculation mode chilled become.

Zudem wird die Anforderung zum Kühlen von eutektischen Platten mit den Kriterien:

  • 1. Hohe umfassende Luftgeschwindigkeiten
  • 2. Schneller Kühleffekt
  • 3. Geringer Platzbedarf
  • 4. Geringster Energieaufwand
  • 5. Trocknungsphase vor Kühlung
auf engstem Raum erzielt.In addition, the requirement for cooling eutectic plates with the criteria:
  • 1. High comprehensive air speeds
  • 2. Fast cooling effect
  • 3. Small space requirement
  • 4. Low energy consumption
  • 5. Drying phase before cooling
achieved in a confined space.

Diese Erfindung ermöglicht es auf engstem Raum eine energiewirtschaftliche Logistik aufzubauen.These Invention allows to build up energy logistics in the smallest of spaces.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.One embodiment The invention is illustrated in the drawing and will be described below described in more detail.

Es zeigt 1
eine Seitenansicht eines Kühlraums mit Tür ausgelegt mit einer Bodentragfähigkeit von über 1 Tonne. In diesen Raum ist ein Regal (1) mit eutektischen Platten (Kühlakkus) eingebracht.It shows 1
a side view of a refrigerator with door designed with a soil carrying capacity of over 1 ton. In this room is a shelf ( 1 ) are introduced with eutectic plates (cold packs).

Nach Schließen der Tür wird die Luftbewegung über einen Querstromventilator (2) erzeugt.After closing the door, the air movement is controlled by a cross-flow fan ( 2 ) generated.

Ein beispielsweise als Splitkälteaggregat ausgebildetes Kälteaggregat (3) übernimmt mit einem Verdampfer (4) die Kühlung der Luft.An example designed as a split refrigeration unit refrigeration unit ( 3 ) takes over with an evaporator ( 4 ) the cooling of the air.

Die Luft wird bis zum Verdampfer über Kanäle (5) geführt.The air is sent to the evaporator via ducts ( 5 ) guided.

Durch ein Luftleitlochblech (6) wird die hohe Anströmgeschwindigkeit der Luft an den Verdampfer abgebremst.Through an air guide plate ( 6 ) slows down the high flow velocity of the air to the evaporator.

Nach Durchströmung des Verdampfers erfolgt durch den Querstromventilator eine Anhebung der benötigten Luftgeschwindigkeit, die Luft wird danach wieder in die Zirkulation gebracht.To flow the evaporator is carried by the cross-flow fan raising the required Air speed, the air is then back into the circulation brought.

Die vorhergehende Trocknungsphase der nassen Platten wird dadurch erreicht, dass eine Stellklappe (7) die Luft freiblasend nach außen leitet.The preceding drying phase of the wet plates is achieved by a Stell flap ( 7 ) the air freely blows outwards.

Der Querstromventilator wird mit einem Keilriemen-betriebenen Motor (8) angetrieben. Der Motor (8) erhält einen Frequenzumrichter und ist somit stufenlos regelbar. Die Raumgröße kann je nach Anforderung variabel gestaltet werden.The cross flow fan is powered by a V-belt operated engine ( 8th ). The motor ( 8th ) receives a frequency converter and is therefore infinitely variable. The room size can be made variable depending on the requirement.

Claims (8)

Umluftkühlmaschine für eutektische Platten mit gezielter und gerichteter Luftführung, dadurch gekennzeichnet, dass die Umluftkühlmaschine ein eigenes Kälteaggregat (3) mit einem Verdampfer (4) und einen Querstromventilator (2) umfasst, wobei der Querstromventilator (2) einen Luftstrom erzeugen kann, der an den eutektischen Platten vorbeiströmt, und wobei der Verdampfer (4) während des Betriebs vor den eutektischen Platten in dem Luftstrom angeordnet ist.Recirculating air cooling machine for eutectic plates with targeted and directed air duct, characterized in that the circulating air cooling machine has its own refrigeration unit ( 3 ) with an evaporator ( 4 ) and a cross-flow fan ( 2 ), wherein the cross-flow fan ( 2 ) can generate a flow of air that flows past the eutectic plates, and wherein the evaporator ( 4 ) during operation in front of the eutectic plates in the airflow. Umluftkühlmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Umluftkühlmaschine Luftleitlochbleche (6) umfasst, die zwischen dem Verdampfer (4) und den eutektischen Platten angeordnet sind.Convection cooling machine according to claim 1, characterized in that the circulating air cooling machine air guide perforated plates ( 6 ) between the evaporator ( 4 ) and the eutectic plates are arranged. Umluftkühlmaschine nach Anspruch 2, dadurch gekennzeichnet, dass der Verdampfer (4) direkt benachbart zu den Luftleitlochblechen (6) ist.Convection cooling machine according to claim 2, characterized in that the evaporator ( 4 ) directly adjacent to the potholing sheets ( 6 ). Umluftkühlmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Umluftkühlmaschine ein Regal (1) umfasst, in dem eutektische Platten angeordnet werden können.Convection cooling machine according to one of claims 1 to 3, characterized in that the circulating air cooling machine a shelf ( 1 ) in which eutectic plates can be arranged. Umluftkühlmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die Luftleitlochbleche (6) zwischen dem Verdampfer (4) und dem Regal (1) angeordnet sind.Convection cooling machine according to claim 4, characterized in that the air guide perforated plates ( 6 ) between the evaporator ( 4 ) and the shelf ( 1 ) are arranged. Umluftkühlmaschine nach Anspruch 5, dadurch gekennzeichnet, dass die Luftleitlochbleche (6) direkt benachbart zu dem Regal (1) sind.Convection cooling machine according to claim 5, characterized in that the air guide perforated plates ( 6 ) directly adjacent to the shelf ( 1 ) are. Umluftkühlmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Umluftkühlmaschine derart gestaltet ist, dass die Luft vor dem Eintritt in den Verdampfer (4) abgebremst und nach dem Austritt aus dem Verdampfer (4) beschleunigt wird.Convection cooling machine according to one of claims 1 to 6, characterized in that the circulating air cooling machine is designed such that the air before entering the evaporator ( 4 ) and after leaving the evaporator ( 4 ) is accelerated. Umluftkühlmaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Umluftkühlmaschine eine Stellklappe (7) umfasst, die für eine Trocknungsphase der eutektischen Platten die Luft freiblasend nach außen leiten kann.Convection cooling machine according to one of claims 1 to 7, characterized in that the circulating air cooling machine a butterfly valve ( 7 ) which, for a drying phase of the eutectic plates, can freely blow the air outwards.
DE202005021335U 2005-06-26 2005-06-26 Circulating air cooling machine for eutectic plate, has refrigeration unit with evaporator and cross-flow ventilator, which produces air flow to flow in eutectic plates, and perforated plates arranged between evaporator and eutectic plates Expired - Lifetime DE202005021335U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202005021335U DE202005021335U1 (en) 2005-06-26 2005-06-26 Circulating air cooling machine for eutectic plate, has refrigeration unit with evaporator and cross-flow ventilator, which produces air flow to flow in eutectic plates, and perforated plates arranged between evaporator and eutectic plates

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005029907.5A DE102005029907C5 (en) 2005-06-26 2005-06-26 Recirculating air cooling machine for eutectic plates
DE202005021335U DE202005021335U1 (en) 2005-06-26 2005-06-26 Circulating air cooling machine for eutectic plate, has refrigeration unit with evaporator and cross-flow ventilator, which produces air flow to flow in eutectic plates, and perforated plates arranged between evaporator and eutectic plates

Publications (1)

Publication Number Publication Date
DE202005021335U1 true DE202005021335U1 (en) 2007-08-30

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DE202005021335U Expired - Lifetime DE202005021335U1 (en) 2005-06-26 2005-06-26 Circulating air cooling machine for eutectic plate, has refrigeration unit with evaporator and cross-flow ventilator, which produces air flow to flow in eutectic plates, and perforated plates arranged between evaporator and eutectic plates

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062976A (en) * 2011-10-19 2013-04-24 赛默飞世尔科技(阿什维尔)有限责任公司 High performance refrigerator having evaporator outside cabinet
US9285153B2 (en) 2011-10-19 2016-03-15 Thermo Fisher Scientific (Asheville) Llc High performance refrigerator having passive sublimation defrost of evaporator
US9310121B2 (en) 2011-10-19 2016-04-12 Thermo Fisher Scientific (Asheville) Llc High performance refrigerator having sacrificial evaporator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062976A (en) * 2011-10-19 2013-04-24 赛默飞世尔科技(阿什维尔)有限责任公司 High performance refrigerator having evaporator outside cabinet
US9285153B2 (en) 2011-10-19 2016-03-15 Thermo Fisher Scientific (Asheville) Llc High performance refrigerator having passive sublimation defrost of evaporator
US9310121B2 (en) 2011-10-19 2016-04-12 Thermo Fisher Scientific (Asheville) Llc High performance refrigerator having sacrificial evaporator

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