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WO2003019091A1 - Echangeur thermique sous forme de panneau creux concu pour produire de la glace - Google Patents

Echangeur thermique sous forme de panneau creux concu pour produire de la glace Download PDF

Info

Publication number
WO2003019091A1
WO2003019091A1 PCT/NL2002/000540 NL0200540W WO03019091A1 WO 2003019091 A1 WO2003019091 A1 WO 2003019091A1 NL 0200540 W NL0200540 W NL 0200540W WO 03019091 A1 WO03019091 A1 WO 03019091A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
cavity
gas
feed
gas supply
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.)
Ceased
Application number
PCT/NL2002/000540
Other languages
English (en)
Inventor
Willem Frederik Jense
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.)
Jense Systemen BV
Original Assignee
Jense Systemen BV
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 Jense Systemen BV filed Critical Jense Systemen BV
Publication of WO2003019091A1 publication Critical patent/WO2003019091A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other

Definitions

  • the invention relates to a hollow panel comprising a cavity through which flow can take place, with at least one feed and at least one discharge for heat transfer medium, in particular a two-phase medium, which panel is intended to form part of an industrial device for making ice, said device comprising: said panel in at least more or less vertical position; wetting means for supplying water to an outer surface of the panel; cooling means for intermittently supplying cold liquid to the cavity such that the water supplied to the outer surface of the panel can freeze to form an ice crust which adheres to this outer surface; and heating means for supplying hot medium, for instance a gas, to the cavity in alternation with the operation of said cooling means such that a formed ice crust detaches from the panel.
  • wetting means for supplying water to an outer surface of the panel
  • cooling means for intermittently supplying cold liquid to the cavity such that the water supplied to the outer surface of the panel can freeze to form an ice crust which adheres to this outer surface
  • heating means for supplying hot medium, for instance a gas, to the cavity in alternation
  • Such a hollow panel is known. It is intended to form part of a freezing installation, using which ice can be manufactured on industrial scale.
  • the hollow panel is arranged in an industrial device having a circuit with a two-phase medium which flows through the hollow panel and first cools the panel during one cycle, so that the water flowing thereover can freeze to an ice crust, and heats the panel in a subsequent phase, so that the boundary layer of the ice crust melts and the formed ice crust can be released from the panel and drop downward.
  • the defrosting phase of heated gas with a temperature of for instance 30°C which is admitted into the cavity on the upper side of the panel via a feed, and at least partly condenses to liquid which leaves the cavity on the underside. It has been found that the defrosting phase of a freezing/defrosting cycle leaves something to be desired.
  • the panel according to the invention has the special feature that at least in the lowermost zone of the cavity there is present a gas supply which connects to a feed and which is provided with a row of gas passage openings extending over substantially the whole width of the cavity, and that a discharge connects to the uppermost zone of the cavity.
  • a gas supply which connects to a feed and which is provided with a row of gas passage openings extending over substantially the whole width of the cavity, and that a discharge connects to the uppermost zone of the cavity.
  • This latter variant can have the special feature that the tube extends inside the cavity and is provided with gas passage openings.
  • An alternative has the special feature that the tube extends outside the panel and the panel inside the tube is provided with gas passage openings.
  • Yet another embodiment has the feature that the panel is manufactured by laying two metal plates one on the other, mutually connecting said plates at their edges in medium-tight and pressure-resistant manner by welding, mutually connecting the plates by welding at discrete welding zones distributed over the surface, arranging at random at least one feed for medium under pressure, supplying medium under pressure to this feed such that the plates move apart while plastically deforming so as to form the cavity, while maintaining the connection at the position of the welding zones, and that the gas supply is embodied as a row of welding zones which are situated on the underside of the panel and between which gas passage openings have formed due to supply of the pressure medium, which thus formed gas supply connects to a feed.
  • the welds can be formed by seam-welding, spot welding, laser welding, friction welding or any other suitable welding method.
  • spot welding spot welding
  • laser welding friction welding
  • the weld pattern can meet set requirements in very simple manner by means of computer control.
  • the panel can advantageously have the special feature that the gas supply is embodied such that the gas flow rate generated thereby has substantially the same value over the whole width of the cavity.
  • An embodiment of this latter inventive concept has the feature that the cross-sectional area decreases in downstream direction relative to the supply. The pressure drop along the length of the gas supply is hereby effectively compensated.
  • Yet another embodiment of this described inventive concept has the special feature that the mutual distance between the gas passage openings decreases in downstream direction relative to the supply.
  • the panel can have the special feature that the total area of the gas passage openings is smaller than 0.1 x the infeed cross-sectional area of the gas supply.
  • the panel can have the feature that at least one further additional gas supply extends above said gas supply.
  • Such a gas supply can be embodied in any desired, technically expedient manner.
  • the freezing phase proceeds in the same manner as according to the prior art.
  • the warm gas with a temperature of for instance 10°C- 80°C is carried into the liquid in the cavity via the gas passage openings and distributed uniformly over the whole width of the panel. Heating of the liquid hereby takes place.
  • the liquid thereby begins to boil and vapour is created.
  • the vapour is drawn off and compressed by the usual compressor, thereby creating warm gas once again, which is again injected into the panel.
  • the invention provides the advantage that relatively small pressure changes occur in the panel compared to the prior art, whereby smaller plate ' thicknesses can be used without the danger of fatigue occurring.
  • the known art generally requires large and expensive valves.
  • the gas is drawn off directly by the compressor, whereby suction gas valves are no longer necessary.
  • a further great drawback of the known device is the occurrence of high pressures in the panel in the defrosting phase, whereby greater plate thicknesses are necessary to prevent fatigue.
  • the known device further requires large and expensive suction gas valves. These valves must be controlled, which also makes the control system relatively complicated.
  • Fig. 1 shows a schematic cross-sectional view of a panel according to the invention in a first embodiment
  • Fig. 2 shows the lower zone of a panel in the second embodiment
  • Fig. 3 is a view corresponding with Fig. 1 of a third embodiment
  • Fig. 4 shows the cross-section IV-IV from Fig. 3
  • Fig. 5 shows a cross-section through a lower zone of a variant
  • Fig. 6 shows a view corresponding with Fig. 1 of a fifth embodiment.
  • Fig. 1 shows a hollow panel 1, comprising a cavity 2 through which flow can take pace, with a feed 3 for hot gas (during the defrosting phase) and a discharge 4 for gas.
  • the panel consists of two, for instance stainless steel plates which are mutually coupled gas and liquid-tightly in suitable manner.
  • Medium for instance a two-phase medium which can consist of liquid and/or gas, can flow through cavity 2 via feed 3 and discharge 4, and vice versa.
  • the panel which is disposed in vertical position or in slightly inclining position relative to the vertical, is wetted by spray means (not shown) , whereby on the slightly upward directed outer surface of the panel an ice crust is formed under the influence of the cold liquid 5 situated in cavity 2.
  • This liquid is formed in known manner in a cooling circuit, of which a compressor forms part. This is an aspect which is generally known and therefore not elucidated further.
  • the gas supply 3 is embodied as a tube 6 (the cross-sectional form of which can in principle be chosen as desired) situated on the underside of cavity 2, which tube 6 is provided with gas passage openings 7.
  • the gas flow 8 is carried into the liquid 5 via gas passage openings 7.
  • a cloud of small gas bubbles 9 is hereby formed which ensure that the liquid 5 heats up and begins to boil, whereby gas is discharged again via gas discharge 4, whereby the compressor present between discharge 4 and feed 3 can function in the correct manner.
  • a compressor is after all only capable of processing gas.
  • gas bubbles 9 are distributed over panel 1 with a great measure of homogeneity, whereby defrosting can take place without blind spots and in a relatively short time.
  • Gas passage openings 7 are arranged downstream of feed 3 and with a decreasing mutual distance in order to compensate the pressure drop along tube 6. This ensures a good homogeneity of the gas flow over the width of panel 1.
  • Fig. 2 shows an embodiment in which a tube 10 connecting onto feed 3 is provided with gas passage openings 7 placed at equal mutual distances, but wherein tube 10 has a form tapering downstream relative to feed 3 in order to ensure a good uniformity of the gas flow rate .
  • Fig. 3 shows a panel 11 which is manufactured by laying two metal plates one on the other, mutually connecting the plates on their periphery in medium-tight and pressure-resistant manner by seam-welding, mutually connecting the plates by laser welding at discrete welding zones 16 distributed over the surface, arranging a feed 12 for hot gas (during the defrosting phase) and a discharge 13, supplying medium under high pressure to the or each feed/discharge made such that the plates move apart while plastically deforming so as to form a cavity 13, while maintaining the connection at the position of welding zones 16.
  • the gas supply in the embodiment according to Fig. 3 is embodied by means of a row of welding zones 14 which are situated on the underside of panel 11 and between which gas passage openings 15 have formed due to supply of the pressure medium, which thus formed gas supply connects to feed 12.
  • Welding zones 14 and 16 are formed in this embodiment by laser welding with circular patterns. Any other suitable pattern and any other suitable welding method can however 1 also be employed.
  • Reference numeral 17 designates the peripheral weld seam formed by seam welding.
  • Fig. 4 shows cross-section IV-IV from Fig. 3.
  • Apparent is the generally cushion-like character of panel 1, wherein at the position of peripheral weld seam 17 and welding zones 16 the two stainless steel plates 18, 19 are mutually connected while leaving clear the cavity 20 through which can flow liquid and gas.
  • Fig. 5 shows the bottom part of a panel 21, the peripheral weld seam 17 of which is enclosed by a gas supply tube 22 through which can flow heated gas under pressure which can be admitted into the liquid 5 in cavity 26 via holes 23 in stainless steel plates 24, 25.
  • Fig. 6 shows a panel 30 with two gas supplies 3, 3', to which tubes 27, 28 connect with gas passage openings 29 through which heated gas can flow. An even greater defrosting speed can be realized with this latter embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Freezers Or Refrigerated Showcases (AREA)

Abstract

La présente invention concerne un panneau creux (1) comprenant une cavité (2) dans laquelle un milieu peut circuler et qui présente un orifice d'alimentation (3) et un orifice d'évacuation (4) pour un milieu de transfert thermique. Ce panneau doit faire partie d'un dispositif industriel conçu pour produire de la glace. Des systèmes de refroidissement permettent d'alimenter de manière intermittente ladite cavité en liquide froid (5), afin que l'eau apportée à la surface externe du panneau puisse congeler et former une croûte de glace. Des systèmes de chauffage permettent d'alimenter la cavité en milieu chaud, par exemple en gaz (8), et fonctionnent alternativement avec lesdits systèmes de refroidissement, de façon à détacher du panneau la croûte de glace formée. Un système d'alimentation en gaz (3) se trouve au moins dans la partie inférieure de la cavité (2) et est connecté à un orifice d'alimentation (3). Ce système d'alimentation en gaz comprend une série d'ouvertures de passage de gaz (7) sur toute la largeur de la cavité. Un orifice d'évacuation (4) est connecté à la partie supérieure de la cavité (3).
PCT/NL2002/000540 2001-08-22 2002-08-13 Echangeur thermique sous forme de panneau creux concu pour produire de la glace Ceased WO2003019091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1018799A NL1018799C2 (nl) 2001-08-22 2001-08-22 Hol paneel voor het maken van ijs.
NL1018799 2001-08-22

Publications (1)

Publication Number Publication Date
WO2003019091A1 true WO2003019091A1 (fr) 2003-03-06

Family

ID=19773901

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2002/000540 Ceased WO2003019091A1 (fr) 2001-08-22 2002-08-13 Echangeur thermique sous forme de panneau creux concu pour produire de la glace

Country Status (2)

Country Link
NL (1) NL1018799C2 (fr)
WO (1) WO2003019091A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712309A1 (fr) * 2005-04-15 2006-10-18 Omega Engineering Holding B.V. Méthode de production d'un paneau creux et panneau obtenu avec cette méthode
CN100416190C (zh) * 2003-12-19 2008-09-03 星崎电机株式会社 自动制冰机
WO2014086405A1 (fr) * 2012-12-05 2014-06-12 Stetter Gmbh Plaque d'évaporation pour la production de glace
CN104236343A (zh) * 2014-09-22 2014-12-24 晋中学院 一种压力均衡的污水换热器
US12331977B2 (en) 2018-08-03 2025-06-17 Hoshizaki America, Inc. Method of cleaning an ice machine

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968550A (en) * 1909-12-06 1910-08-30 Charles N Gille Milk-refrigerating apparatus.
US1779911A (en) * 1926-05-08 1930-10-28 Copeland Products Inc Method of making evaporators
US2555055A (en) * 1948-05-14 1951-05-29 Carrier Corp Refrigerant distributor
DE2929888A1 (de) * 1979-07-24 1981-02-19 Miromit Ashkelon Metal Product Verfahren zur herstellung einer tafel mit durchflusstrecken und nach dem verfahren hergestellte tafel
FR2479961A3 (fr) * 1980-04-05 1981-10-09 Sueddeutsche Kuehler Behr Radiateur pour vehicules automobiles
EP0117554A1 (fr) * 1983-02-26 1984-09-05 Johs. Burmester & Co. GmbH Pompe à chaleur pour l'extraction de chaleur de l'eau de surface
US4829782A (en) * 1988-08-29 1989-05-16 Paul Mueller Company Ice harvesting/water chiller machine
EP0330288A1 (fr) * 1988-02-26 1989-08-30 Gerardus Hendricus Maria Nijenhuis Dispositif de refroidissement ou pompe à chaleur
WO1997034117A1 (fr) * 1996-03-05 1997-09-18 Omega Engineering B.V. Dispositif a faire de la glace
US5806586A (en) * 1993-07-03 1998-09-15 Ernst Flitsch Gmbh & Co. Plate heat exchanger with a refrigerant distributor
EP1038575A2 (fr) * 1999-03-19 2000-09-27 XCELLSIS GmbH Réacteur à plaques

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968550A (en) * 1909-12-06 1910-08-30 Charles N Gille Milk-refrigerating apparatus.
US1779911A (en) * 1926-05-08 1930-10-28 Copeland Products Inc Method of making evaporators
US2555055A (en) * 1948-05-14 1951-05-29 Carrier Corp Refrigerant distributor
DE2929888A1 (de) * 1979-07-24 1981-02-19 Miromit Ashkelon Metal Product Verfahren zur herstellung einer tafel mit durchflusstrecken und nach dem verfahren hergestellte tafel
FR2479961A3 (fr) * 1980-04-05 1981-10-09 Sueddeutsche Kuehler Behr Radiateur pour vehicules automobiles
EP0117554A1 (fr) * 1983-02-26 1984-09-05 Johs. Burmester & Co. GmbH Pompe à chaleur pour l'extraction de chaleur de l'eau de surface
EP0330288A1 (fr) * 1988-02-26 1989-08-30 Gerardus Hendricus Maria Nijenhuis Dispositif de refroidissement ou pompe à chaleur
US4829782A (en) * 1988-08-29 1989-05-16 Paul Mueller Company Ice harvesting/water chiller machine
US5806586A (en) * 1993-07-03 1998-09-15 Ernst Flitsch Gmbh & Co. Plate heat exchanger with a refrigerant distributor
WO1997034117A1 (fr) * 1996-03-05 1997-09-18 Omega Engineering B.V. Dispositif a faire de la glace
EP1038575A2 (fr) * 1999-03-19 2000-09-27 XCELLSIS GmbH Réacteur à plaques

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100416190C (zh) * 2003-12-19 2008-09-03 星崎电机株式会社 自动制冰机
EP1712309A1 (fr) * 2005-04-15 2006-10-18 Omega Engineering Holding B.V. Méthode de production d'un paneau creux et panneau obtenu avec cette méthode
WO2014086405A1 (fr) * 2012-12-05 2014-06-12 Stetter Gmbh Plaque d'évaporation pour la production de glace
CN104236343A (zh) * 2014-09-22 2014-12-24 晋中学院 一种压力均衡的污水换热器
US12331977B2 (en) 2018-08-03 2025-06-17 Hoshizaki America, Inc. Method of cleaning an ice machine

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Publication number Publication date
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