EP2546590A2 - Buse de paroi pour tunnel de refroidissement - Google Patents

Buse de paroi pour tunnel de refroidissement Download PDF

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Publication number
EP2546590A2
EP2546590A2 EP12171953A EP12171953A EP2546590A2 EP 2546590 A2 EP2546590 A2 EP 2546590A2 EP 12171953 A EP12171953 A EP 12171953A EP 12171953 A EP12171953 A EP 12171953A EP 2546590 A2 EP2546590 A2 EP 2546590A2
Authority
EP
European Patent Office
Prior art keywords
product stack
nozzle wall
contact surface
products
cooling
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.)
Withdrawn
Application number
EP12171953A
Other languages
German (de)
English (en)
Other versions
EP2546590A3 (fr
Inventor
Rainer Klaus Pumpe
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2546590A2 publication Critical patent/EP2546590A2/fr
Publication of EP2546590A3 publication Critical patent/EP2546590A3/fr
Withdrawn legal-status Critical Current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
    • F25D17/005—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces in cold rooms
    • 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements

Definitions

  • the invention relates to a nozzle wall element for a cooling tunnel, for cooling products, such as dairy products, wherein the products to be cooled are stacked and these product stacks are exposed to a coolant flow, wherein the coolant flow is supplied on one side of the product stack through nozzle openings in the nozzle wall element Penetrated product stack and is sucked on the other side of the product stack.
  • Such nozzle wall elements for cooling tunnel or cold storage are available in different versions, all of which have the goal to accelerate the cooling process and / or more effective.
  • a docking device which docks to a product stack or to a arranged on a transport device product stack, so that the coolant flow must flow through the product stack directly.
  • This docking device described has a temperature-resistant, elastic Andockbalg, which rests sealingly on the product to be cooled or the product stack. This is a free distance between the nozzle wall element, via which the gaseous coolant flow is supplied and the product stack can be bridged. As a result, the coolant flow can reach the products to be cooled without significant losses. But are z. B. only product stack with half height available, the docking device can no longer seal and it results in a considerable amount of incorrect air.
  • Another docking device for cooling tunnel is from the DE 10 2009 045 146 A1 known.
  • the individual docking devices are equipped with a locking mechanism. This consists of a continuous, vertically adjustable to the height of the goods to be cooled nozzle plate. The losses can be reduced thereby, but the construction is very complicated and expensive.
  • Cooling tunnels for cooling goods are generally, for example, from DE 100 17 408 A1 , of the EP 1 455 151 B1 or the DE 10 2008 040 353 A1 known.
  • cooling tunnels known from practice are divided into cooling zones or cooling areas. Each zone or area has one or more locations for the products to be cooled.
  • the pitches are treated with gaseous coolant streams, in particular cooled air, mostly regardless of whether they are fully occupied or not at all.
  • the object of the invention is to provide a device and a method which do not have or reduce the disadvantages of the prior art.
  • a nozzle wall element of the aforementioned type wherein the nozzle wall element comprises a frame element and a plant surface element with nozzles.
  • the contact surface of the plant surface element is at least partially brought into contact with the product stack for cooling the products, so that the cooling medium can flow directly into the product stack at least through part of the nozzle openings.
  • the contact surface of the nozzle wall element directly to the Product stack brought.
  • the coolant flow must flow through the product stack.
  • the loss is thus limited to the portion of the nozzles that do not come in contact with the product stack.
  • the plant surface element of the nozzle wall element can be brought into contact with the product stack by means of the coolant flow. This eliminates additional devices for moving the contact surface.
  • the plant surface element of the nozzle wall element is further preferably mounted movably mounted in a nozzle wall frame.
  • the plant surface element is movably mounted so that it is movable parallel to the cooling surface of the product stack.
  • the plant surface element consists of an elastic material, so that the contact surface can adapt to the shape of the product stack and thus the loss of coolant flow is further reduced.
  • the mobility of the product stack can then be realized, for example, by means of a bellows-type connection to the nozzle wall frame.
  • the plant surface element consists of a stretchable material, so that the plant surface element can be fixed in the nozzle wall frame without further device elements. Due to the flow of coolant, the plant surface element is stretched and pressed against the product stack.
  • the open areas of the nozzle openings of the plant surface element ie the opening areas of all nozzle openings, are designed and arranged on the plant surface element such that they essentially coincide with the opening areas of the product stack or are congruent.
  • the opening area of the product stacks is to be understood as meaning the area that is added when the area proportions of the product stack are added together by the product Coolant flow can flow relatively lossless.
  • the nozzle openings in the plant surface element are designed such that the pressure loss of the coolant flow through the nozzle openings is smaller than the pressure loss of the coolant flow through the product stack. This ensures that the system surface is applied to the product stack.
  • the nozzle openings in the plant surface element are designed such that the pressure loss of the coolant flow through the nozzle openings is at least 50% smaller than the pressure loss of the coolant flow through the product stack. This ensures that different product stacks and heights can be placed in the cooling tunnel and that the plant surface always attaches itself to the product stack.
  • the nozzle wall element comprises a plant surface element with nozzles, wherein the contact surface of the plant surface element, for cooling the products, at least partially brought into contact with the product stack, so that at least through a part of the nozzle openings, the cooling medium directly into the Product stack flows in.
  • this is moved by means of the coolant flow and brought into contact with the product stack.
  • the coolant flow can be regulated so that the plant surface element can be brought into controlled contact with the product stack by means of the coolant flow. This facilitates the change of product stacks.
  • FIG. 1 shows the left half of the cross section through a cooling tunnel 1 with a docking device.
  • the right half not shown, is executed adequately.
  • the cooling tunnel is designed in two rows.
  • the nozzle wall element 12 according to the invention can also be installed, for example, in single-row cooling tunnels or cold stores.
  • the cooling tunnel 1 has a housing 2.
  • At least one pressure generating device 3 which is designed here in the form of a fan.
  • pitches 5 for adjusting the products to be cooled 7. These products are cooled with a gaseous, outgoing from the fan 3 coolant stream 6.
  • the products 7, for example foods, such as dairy products, in particular yoghurt in cups, are stacked in rows one after the other and one above the other on a pallet 8. Such a product stack is denoted by 7.
  • the cooling area 4 is delimited at the top with a ceiling wall 9.
  • the cold storage area 5 or the cooling area 4 contains a docking station 10 with a docking bellows 11 and a nozzle wall element 12.
  • the docking station 10 also has a shut-off device 13 upstream of the nozzle plate 12.
  • the shut-off device comprises one above the other and arranged below each other arbitrarily openable or to be closed passage openings 14. In the example shown, these are designed for the purpose of shut-off example, flap-like.
  • the products 7 to be cooled on the pallet 8 are only half-height stacked in the example given, so that the upper portion remains free and thereby erroneous flows of the coolant flow 6 and thereby cooling losses would result.
  • FIG. 1 One recognizes in FIG. 1 in that the product stacks 7 or the pallets 8 are conveyed on a conveyor 16 through the cooling tunnel 1 in a conveying direction F.
  • one side of the stack 7 is exposed to the coolant flow 6, in particular cooling air, so that the coolant flow 6 penetrates the stack 7.
  • the thereby heated air is sucked off on the other side of the stack 7, as indicated by dashed lines.
  • the pressure build-up as well as the suction takes place by the fan 3, which leads the cooling air in the circle.
  • FIG. 2 the nozzle plate function principle according to the invention is shown.
  • the nozzle wall elements 12 are, as in the prior art, arranged along the parking spaces in the cooling tunnel. They consist of a frame element 15, whereby a plurality of frames can be combined to form a frame element 15, and a contact surface element 16, which has the nozzle openings 17. Through the nozzle openings 17 in the contact surface element 16, the cooling air 6 is directed or blown into the product stack 7.
  • the plant surface element 16 is made of an elastic material.
  • the opening cross sections or nozzle opening cross sections are selected such that the pressure loss of the coolant flow 6 through the nozzle openings 17 is smaller than the pressure loss of the coolant flow 6 through the product stack 7. This ensures that the pressure on the inflow side of the plant surface element 16 is greater than the pressure that can build up between the plant surface element 16 and the product stack 7.
  • the pressure loss of the coolant flow through the plant surface element 17 is at least 50% smaller than the pressure loss through the product stack 7.
  • the coolant flow is briefly interrupted or reduced, so that the plant surface element 16 is detached from the product stack 7 or lifts off.
  • the product stack can then be exchanged for an uncooled one.
  • the control of the coolant flow 6 thus causes the plant surface element 16 is moved and applies to the product stack or takes off.
  • FIG. 3 shows the nozzle wall element 12 in front view.
  • the illustrated nozzle wall elements 12 have a common frame element 15 in which the plant surface elements 16 are mounted.
  • the nozzle openings are evenly distributed over surfaces of the plant surface elements 16. The size and shape of the nozzle openings is selected such that the flow resistance through them is greater than through the product stack 7, so that it is ensured that the contact surface 16 is pressed in any case by the air flow 6 to the product stack.

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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)
  • Dairy Products (AREA)
EP12171953.8A 2011-07-14 2012-06-14 Buse de paroi pour tunnel de refroidissement Withdrawn EP2546590A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011079132 2011-07-14
DE102011080807A DE102011080807A1 (de) 2011-07-14 2011-08-11 Düsenwandelement für einen Kühltunnel

Publications (2)

Publication Number Publication Date
EP2546590A2 true EP2546590A2 (fr) 2013-01-16
EP2546590A3 EP2546590A3 (fr) 2017-03-22

Family

ID=46245962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12171953.8A Withdrawn EP2546590A3 (fr) 2011-07-14 2012-06-14 Buse de paroi pour tunnel de refroidissement

Country Status (2)

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EP (1) EP2546590A3 (fr)
DE (1) DE102011080807A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015102328A1 (de) 2015-02-18 2016-08-18 Airinotec Gmbh Behandlungsvorrichtung für Kühlgut

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017408A1 (de) 2000-04-07 2001-10-11 Wiessner Gmbh Behandlungs-Tunelleinrichtung, insbesondere Kühltunell
EP1455151B1 (fr) 2003-03-07 2006-06-07 M+W Zander Gebäudetechnik GmbH Procédé pour refroidir des produits, notamment d'aliments, en particulier des produits laitiers, et dispositif pour sa mise en oeuvre
DE202006015362U1 (de) 2006-10-05 2008-02-07 Wiessner Gmbh Andockvorrichtung und Kühleinrichtung mit einer Andockvorrichtung
DE102008040353A1 (de) 2007-07-25 2009-01-29 Patek Philippe Sa Repetitions- oder Schlagwerkmechanismus und mit einem solchen Mechanismus ausgerüstete Uhr
DE102009045146A1 (de) 2009-09-30 2011-04-07 Voith Patent Gmbh Kühltunnel zum Kühlen von Gütern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688518A (en) * 1970-10-16 1972-09-05 Teckton Inc Refrigerated conveyor system
NL7306577A (fr) * 1972-06-05 1973-12-07
FR2498429A1 (fr) * 1981-01-27 1982-07-30 Carboxyque Francaise Enceinte de refrigeration perfectionnee
DE29900870U1 (de) * 1999-01-20 1999-04-15 Rud. Otto Meyer GmbH & Co. KG, 22047 Hamburg Vorrichtung zur Lenkung eines Fluidstromes
DE102011085227A1 (de) * 2011-10-26 2013-05-02 Voith Patent Gmbh Kühlvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017408A1 (de) 2000-04-07 2001-10-11 Wiessner Gmbh Behandlungs-Tunelleinrichtung, insbesondere Kühltunell
EP1455151B1 (fr) 2003-03-07 2006-06-07 M+W Zander Gebäudetechnik GmbH Procédé pour refroidir des produits, notamment d'aliments, en particulier des produits laitiers, et dispositif pour sa mise en oeuvre
DE202006015362U1 (de) 2006-10-05 2008-02-07 Wiessner Gmbh Andockvorrichtung und Kühleinrichtung mit einer Andockvorrichtung
DE102008040353A1 (de) 2007-07-25 2009-01-29 Patek Philippe Sa Repetitions- oder Schlagwerkmechanismus und mit einem solchen Mechanismus ausgerüstete Uhr
DE102009045146A1 (de) 2009-09-30 2011-04-07 Voith Patent Gmbh Kühltunnel zum Kühlen von Gütern

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Publication number Publication date
DE102011080807A1 (de) 2013-01-17
EP2546590A3 (fr) 2017-03-22

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