EP2306130A2 - Plate for freeze drying machines - Google Patents

Plate for freeze drying machines Download PDF

Info

Publication number
EP2306130A2
EP2306130A2 EP20100178158 EP10178158A EP2306130A2 EP 2306130 A2 EP2306130 A2 EP 2306130A2 EP 20100178158 EP20100178158 EP 20100178158 EP 10178158 A EP10178158 A EP 10178158A EP 2306130 A2 EP2306130 A2 EP 2306130A2
Authority
EP
European Patent Office
Prior art keywords
plate
frame
profile
diathermic fluid
freeze drying
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
EP20100178158
Other languages
German (de)
French (fr)
Other versions
EP2306130A3 (en
Inventor
Bruno Montagner
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.)
Tec-Sim Srl
Original Assignee
Tec-Sim Srl
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 Tec-Sim Srl filed Critical Tec-Sim Srl
Publication of EP2306130A2 publication Critical patent/EP2306130A2/en
Publication of EP2306130A3 publication Critical patent/EP2306130A3/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
    • 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
    • F28D1/0366—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 spaced plates with inserted elements
    • F28D1/0383—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 spaced plates with inserted elements with U-flow or serpentine-flow inside the conduits

Definitions

  • the present invention relates to a plate for freeze drying machines.
  • Plates are known for positioning within freeze drying machines, they consisting of two parallel steel sheets connected together along their edges by a frame to form a closed chamber provided with inlet and outlet conduits, and through which a cooling/heating diathermic fluid circulates originating from a cooling/heating plant.
  • a plurality of parallel tubular elements are welded to one of the two metal sheets.
  • Said tubular elements are positioned mutually offset in the sense that they are alternately connected to a first wall of the perimetral frame but spaced from the opposite wall, and connected to the opposite wall but spaced from the first.
  • a zig-zag path is formed comprising parallel passages for the diathermic fluid, which absorbs heat by convection, to cool the articles positioned on the plates.
  • the plate of the invention is indicated overall by 2 and comprises substantially an upper metal sheet 4 and a lower metal sheet 6 which are parallel to each other and connected together by four bars 8, 8', 10, 10' of substantially square cross-section, to form a chamber 12.
  • the chamber 12 is provided with two coaxial conduits for inlet 14 and outlet 16 respectively.
  • the profiles 18, of height equal to the height of the chamber 12 have a length less than the length of the bars 8, 8' and form an aperture 20 between their free end and the facing bars 10, 10'. They are fixed alternately to one and the other bar 10, 10' to form a zig-zag path of parallel channels 22.
  • each profile 18 fixed to the bar 10' presents a cut at 45° to the longitudinal axis in order to from with the bar 10' a passage 24 towards the interior of the U portion 26 of the ⁇ profile 18.
  • the diathermic fluid entering the chamber 12 through the conduit 14 is distributed both along the channels 22 and within the profile 18, to leave from the other end, and hence also in this case create heat exchange by convection with the profile and consequently with the metal sheets.
  • the aperture consists of a hole provided in the vertical portions of the profile.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)
  • Filtering Materials (AREA)

Abstract

A plate for freeze drying machines, comprising two parallel facing metal sheets (4, 6) connected together by a perimetral frame (8, 8', 10, 10') and provided with an inlet conduit (14) and an outlet conduit (16) for a cooled/heated diathermic fluid, within the chamber (12) formed by said metal sheets (4, 6) and by said frame (8, 8', 10, 10') there being provided a plurality of parallel profiles (18) forming zig-zag channels (22) for the flow of the diathermic fluid, characterised in that said profiles (18) have an Ω cross-section and are provided, at that end fixed to the frame (10'), with an aperture forming a passage for the diathermic fluid within the cavity of the Ω profile.

Description

  • The present invention relates to a plate for freeze drying machines.
  • Plates are known for positioning within freeze drying machines, they consisting of two parallel steel sheets connected together along their edges by a frame to form a closed chamber provided with inlet and outlet conduits, and through which a cooling/heating diathermic fluid circulates originating from a cooling/heating plant.
  • A plurality of parallel tubular elements are welded to one of the two metal sheets.
  • Said tubular elements are positioned mutually offset in the sense that they are alternately connected to a first wall of the perimetral frame but spaced from the opposite wall, and connected to the opposite wall but spaced from the first.
  • In this manner a zig-zag path is formed comprising parallel passages for the diathermic fluid, which absorbs heat by convection, to cool the articles positioned on the plates.
  • These plates have however proved susceptible to improvement with regard to improving the heat exchange within the space inside the tubular elements which form the zig-zag path. In this respect, within these elements the fluid is substantially stagnant so that heat exchange with the plates takes place only by conduction.
  • According to the invention this drawback is eliminated by a plate for freeze drying machines as described in claim 1.
  • The present invention is further clarified hereinafter with reference to the accompanying drawings, in which:
    • Figure 1 is an interrupted perspective view of a plate according to the invention, and
    • Figure 2 is a perspective view of a profile.
  • As can be seen from the figures, the plate of the invention is indicated overall by 2 and comprises substantially an upper metal sheet 4 and a lower metal sheet 6 which are parallel to each other and connected together by four bars 8, 8', 10, 10' of substantially square cross-section, to form a chamber 12.
  • At one end of the sides 8, 8' the chamber 12 is provided with two coaxial conduits for inlet 14 and outlet 16 respectively.
  • Fixed to the bars 8, 8', 10 and 10' there are a plurality of parallel profiles 18 of Ω cross-section with their axis perpendicular to the axis of the conduits 14 and 16.
  • The profiles 18, of height equal to the height of the chamber 12, have a length less than the length of the bars 8, 8' and form an aperture 20 between their free end and the facing bars 10, 10'. They are fixed alternately to one and the other bar 10, 10' to form a zig-zag path of parallel channels 22.
  • In addition, the end of each profile 18 fixed to the bar 10' presents a cut at 45° to the longitudinal axis in order to from with the bar 10' a passage 24 towards the interior of the U portion 26 of the Ω profile 18.
  • In this manner the diathermic fluid entering the chamber 12 through the conduit 14 is distributed both along the channels 22 and within the profile 18, to leave from the other end, and hence also in this case create heat exchange by convection with the profile and consequently with the metal sheets.
  • In a variant, not shown in the drawings, the aperture consists of a hole provided in the vertical portions of the profile.

Claims (3)

  1. A plate for freeze drying machines, comprising two parallel facing metal sheets (4, 6) connected together by a perimetral frame (8, 8', 10, 10') and provided with an inlet conduit (14) and an outlet conduit (16) for a cooled/heated diathermic fluid, within the chamber (12) formed by said metal sheets (4, 6) and by said frame (8, 8', 10, 10') there being provided a plurality of parallel profiles (18) forming zig-zag channels (22) for the flow of the diathermic fluid, characterised in that said profiles (18) have an Ω cross-section and are provided, at that end fixed to the frame (10'), with an aperture forming a passage for the diathermic fluid within the cavity of the Ω profile.
  2. A plate as claimed in claim 1, characterised in that the aperture is obtained by cutting at 45° a portion of the profile end.
  3. A plate as claimed in claim 1, characterised in that the aperture consists of a hole formed in the vertical portions of the profile.
EP20100178158 2009-10-01 2010-09-22 Plate for freeze drying machines Ceased EP2306130A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVE20090013 ITVE20090013U1 (en) 2009-10-01 2009-10-01 PLATE FOR LYO-FILTERING MACHINES.

Publications (2)

Publication Number Publication Date
EP2306130A2 true EP2306130A2 (en) 2011-04-06
EP2306130A3 EP2306130A3 (en) 2012-07-18

Family

ID=43383511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100178158 Ceased EP2306130A3 (en) 2009-10-01 2010-09-22 Plate for freeze drying machines

Country Status (2)

Country Link
EP (1) EP2306130A3 (en)
IT (1) ITVE20090013U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084756A (en) * 2014-06-03 2014-10-08 基伊埃（北京）冻干技术有限公司 Heat exchange partition board of freezedryer and processing method thereof
DE102015216555A1 (en) 2015-08-28 2017-03-02 OPTIMA pharma GmbH Stellplatte for a freeze dryer and freeze dryer
DE102015216725A1 (en) 2015-09-01 2017-03-02 OPTIMA pharma GmbH Stellplatte for a freeze dryer and freeze dryer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1775819A (en) * 1925-09-12 1930-09-16 Fischer Herbert Cooling device
JP4312339B2 (en) * 2000-02-24 2009-08-12 ナブテスコ株式会社 Heat transfer device with meandering passage
US20070137061A1 (en) * 2005-12-19 2007-06-21 Gerald Bogdan Freeze dryer shelf assembly
GB2434633A (en) * 2006-01-27 2007-08-01 Boc Group Plc Freeze dryer shelf comprising a corrugated sheet defining a flow channel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084756A (en) * 2014-06-03 2014-10-08 基伊埃（北京）冻干技术有限公司 Heat exchange partition board of freezedryer and processing method thereof
DE102015216555A1 (en) 2015-08-28 2017-03-02 OPTIMA pharma GmbH Stellplatte for a freeze dryer and freeze dryer
DE102015216725A1 (en) 2015-09-01 2017-03-02 OPTIMA pharma GmbH Stellplatte for a freeze dryer and freeze dryer

Also Published As

Publication number Publication date
ITVE20090013U1 (en) 2011-04-02
EP2306130A3 (en) 2012-07-18

Similar Documents

Publication Publication Date Title
EP2948724B1 (en) Multiple tube bank heat exchange unit with manifold assembly
EP3745076B1 (en) Pipe collecting box and heat exchanger
EP2306130A2 (en) Plate for freeze drying machines
EP2674527A1 (en) Laundry treatment apparatus with heat exchanger unit
CN111112369B (en) Cooling device for aluminum profile machining
EP3034978A1 (en) Plate type heat exchanger with cutted plate
WO2015027783A1 (en) Micro-channel heat exchanger and method for manufacturing same
JP2016102592A (en) Heat exchanger
US20150041106A1 (en) Cooling Radiator For A Vehicle, Particularly A Motor Vehicle
JP2013044504A5 (en)
EP3134695A1 (en) Heat exchanger comprising a core of tubes
WO2014126634A1 (en) Multiple bank flattened tube heat exchanger
US20140373570A1 (en) Multi-Layer Evaporator For Motor Vehicle Air-Conditioning Circuit
WO2014176194A1 (en) Core device of a heat exchanger and heat exchanger with the core device
JP4898341B2 (en) Heat exchanger
EP3218664B1 (en) Fin for a finned pack for heat exchangers, as well as heat exchanger
US10209014B2 (en) Brazed heat exchanger
CN209857727U (en) Collecting pipe, heat exchanger and air conditioner outdoor unit
EP3857158B1 (en) A heat exchanger
KR20180135010A (en) Air cooling chiller
CN109564066B (en) Heating device
CN109477702B (en) High-efficiency heating device
CN219640784U (en) Profile heat exchange body for shovel blade processing and heat exchanger
KR102196959B1 (en) Heat-exchanger
EP3350532B1 (en) Heat exchanger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F28F 3/12 20060101ALI20120614BHEP

Ipc: F26B 5/06 20060101AFI20120614BHEP

17P Request for examination filed

Effective date: 20121212

17Q First examination report despatched

Effective date: 20130215

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20150423