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EP0840055A2 - Eutectic plates - Google Patents

Eutectic plates

Info

Publication number
EP0840055A2
EP0840055A2 EP19970307861 EP97307861A EP0840055A2 EP 0840055 A2 EP0840055 A2 EP 0840055A2 EP 19970307861 EP19970307861 EP 19970307861 EP 97307861 A EP97307861 A EP 97307861A EP 0840055 A2 EP0840055 A2 EP 0840055A2
Authority
EP
Grant status
Application
Patent type
Prior art keywords
eutectic
plates
compartments
tank
passageways
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Withdrawn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
EP19970307861
Other languages
German (de)
French (fr)
Other versions
EP0840055A3 (en )
Inventor
M. E. Garrett
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/001Thermal insulation specially adapted for cryogenic vessels

Abstract

A eutectic plate 1 for attachment to the wall of a cylindrical storage vessel comprises spaced apart skins 3,4 interconnected by members 5 to define a plurality of compartments 8. Some compartments contain eutectic material 10 whilst other compartments define passageways for the flow therethrough of a fluid.

Description

The present invention relates to eutectic plates and in particular to eutectic plates adapted to be attached to the outer surface of cylindrical storage tanks, for example, refrigerated storage tanks.

Access to refrigerated storage tanks held within frames constructed to international standards is limited at the sides and the nozzles for entry into the tank are usually located on the median line along the top of the tank. Such tanks are usually insulated and then covered with a material for protecting the insulation.

It is an aim of the present invention to provide eutectic plates which are adapted to be clamped directly against the cylindrical outer wall of a tank and which can be made to function either as heating or cooling plates.

According to the present invention a eutectic plate of arcuate configuration for ready attachment directly to the wall of a cylindrical storage tank comprises spaced apart first and second skins interconnected by members to define a plurality of compartments in which some compartments contain eutectic material while other compartments define passageways for the flow therethrough of a fluid.

Preferably the disposition of the members between the skins defines compartments in the form of a honeycomb and in which each compartment is generally square in cross-section.

An embodiment of the invention will now be described, by way of example, reference being made to the Figures of the accompanying diagrammatic drawing in which:

  • Figure 1 is a perspective view of two eutectic plates according to the present invention; and
  • Figure 2 is a detail in cross-section of one of the eutectic plates illustrated in Figure 1.

As shown in Figure 1, two eutectic plates 1, each have a generally arcuate configuration for ready attachment directly to the outer wall of, for example, a cylindrical refrigerated storage tank (not shown). Referring also to Figure 2, the plates 1 are fixed to the tank under the conventional insulation 2 usually surrounding the tank when containing chilled products.

Each plate 1 as shown comprises inner and outer skins 3, 4 interconnected by cross members 5 and a thin intermediate plate member 6 which define with the skins 3,4 a plurality of compartments 8 of generally square cross-section. Some compartments 8 are filled with eutectic material 10 whilst others particularly those adjacent the inner skin 3 define passageways 12 for the passage therethrough of a fluid.

The plates 1 are shown with one plate member 6 but it will be appreciated that eutectic plates can be constructed according to the present invention with a plurality of thin plates 6 and a plurality of thin members at right angles to the plates 6 and the skins 3,4 thereby to form a honeycomb type structure.

It is relatively easy for the compartments to be made leak-tight, one against the other, and in practice eutectic plates 1 will be formed with passageways 12 preferable adjacent the inner skin 3 said passageways 12 will be connected by headers so that for example, liquid nitrogen could be passed through these passageways 12 to chill the eutectic mixture 10. This is a rapid process and achieves in minutes full cooling which would normally take several hours. Since the passageways 12 are directly adjacent to the tank surface, cold will also be transferred to the tank contents thereby aiding the chilling process. Again, because of the short time period involved, once the eutectic plates 1 have frozen, virtually all the cold becomes available for cooling the tank contents.

The eutectic plates 1 can also be used for heating a tank by passing steam through the passageways 12 to warm the tank contents. In this situation, the eutectic material 10 will melt and will act as a transfer medium by convection and conduction around the periphery of the tank.

Claims (3)

  1. A eutectic plate 1 of arcuate configuration for ready attachment directly to the wall of a cylindrical storage tank comprising spaced apart first and second skins 3,4 interconnected by members 5 to define a plurality of compartments 8 in which some compartments contain eutectic material 10 while other compartments define passageways 12 for the flow therethrough of a fluid.
  2. A eutectic plate as claimed in Claim 1, in which the disposition of the members between the skins defines compartments in the form of a honeycomb.
  3. A eutectic plate as claimed in Claim 2, in which each department is generally square in cross-section.
EP19970307861 1996-10-30 1997-10-06 Eutectic plates Withdrawn EP0840055A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9622570A GB9622570D0 (en) 1996-10-30 1996-10-30 Eutectic plates
GB9622570 1996-10-30

Publications (2)

Publication Number Publication Date
EP0840055A2 true true EP0840055A2 (en) 1998-05-06
EP0840055A3 true EP0840055A3 (en) 1998-09-16

Family

ID=10802155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970307861 Withdrawn EP0840055A3 (en) 1996-10-30 1997-10-06 Eutectic plates

Country Status (4)

Country Link
EP (1) EP0840055A3 (en)
JP (1) JPH10129788A (en)
CN (1) CN1088168C (en)
GB (1) GB9622570D0 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB672858A (en) * 1950-08-24 1952-05-28 Dole Refrigerating Co Improvements in and relating to refrigerating or freezing plates
US2690653A (en) * 1952-08-14 1954-10-05 Dole Refrigerating Co Stamped plate
US4581285A (en) * 1983-06-07 1986-04-08 The United States Of America As Represented By The Secretary Of The Air Force High thermal capacitance multilayer thermal insulation
DE3614731A1 (en) * 1986-04-30 1987-11-05 Ernst Mehling Cold storage element for installation in cool rooms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB672858A (en) * 1950-08-24 1952-05-28 Dole Refrigerating Co Improvements in and relating to refrigerating or freezing plates
US2690653A (en) * 1952-08-14 1954-10-05 Dole Refrigerating Co Stamped plate
US4581285A (en) * 1983-06-07 1986-04-08 The United States Of America As Represented By The Secretary Of The Air Force High thermal capacitance multilayer thermal insulation
DE3614731A1 (en) * 1986-04-30 1987-11-05 Ernst Mehling Cold storage element for installation in cool rooms

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
W. E. LAUTERBACH: "PLATE/BLOWER-COIL SYSTEMS FOR LOW TEMPERATURE TRUCKS" ASHRAE JOURNAL, vol. 15, no. 3, March 1973, pages 55-60, XP002072212 *

Also Published As

Publication number Publication date Type
JPH10129788A (en) 1998-05-19 application
CN1088168C (en) 2002-07-24 grant
CN1182695A (en) 1998-05-27 application
GB9622570D0 (en) 1997-01-08 grant
EP0840055A3 (en) 1998-09-16 application

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