US2436389A - Refrigerating plate and internal reinforcement therefor - Google Patents

Refrigerating plate and internal reinforcement therefor Download PDF

Info

Publication number
US2436389A
US2436389A US614420A US61442045A US2436389A US 2436389 A US2436389 A US 2436389A US 614420 A US614420 A US 614420A US 61442045 A US61442045 A US 61442045A US 2436389 A US2436389 A US 2436389A
Authority
US
United States
Prior art keywords
plate
coil
walls
internal reinforcement
fluid
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
US614420A
Other languages
English (en)
Inventor
Herman W Kleist
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.)
Dole Refrigerating Co
Original Assignee
Dole Refrigerating Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24461187&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US2436389(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dole Refrigerating Co filed Critical Dole Refrigerating Co
Priority to US614420A priority Critical patent/US2436389A/en
Priority to FR922559D priority patent/FR922559A/fr
Application granted granted Critical
Publication of US2436389A publication Critical patent/US2436389A/en
Priority to DED6166A priority patent/DE835442C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/005—Devices using other cold materials; Devices using cold-storage bodies combined with heat exchangers
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/07—Vacuum plates

Definitions

  • My invention relates to an improvement in refrigeration and relates particularly to the structure of cold plates.
  • One purpose is to provide an improved cold plate for refrigerators and the like- 'Another purpose is to provide an improved plate in which a variable volume of liquid is em- I illustrate the invention more or less diagrammatically in the accompanying drawings, wherein:
  • Figure 1 is a side elevation with parts in skeleton outline and parts broken away;
  • Figure 2 is a section on an enlarged scale on the line 22 of Figure 1;
  • Figure 3 is a detail section on a still larger scale
  • Figure 4 is a section on the line 44 of Figure 3.
  • Figure -5 is a detail section on the line 5-5 of Figure 2.
  • Figure 6 is a vertical section on an enlarged scale of an embodiment in which but a small amount of eutectic fluid is used.
  • A indicates generally a cold plate including a coil in circuit with a mechanical refrigeration mechanism.
  • the mechanical refrigeration mechanism is diagrammatically shown at B. It includes a base i, any suitable compressor 2, driven by a motor 3 through the belt 4.
  • I diagrammatically indi-- cates any suitable condenser coil and 6 is any suitable receiver.
  • 1 is a high pressure duct extending from the receiver to any suitable expansion valve diagrammatically indicated as at 8.
  • .9 is a refrigerant delivery duct extending from ,the expansion valve "liquid refrigerant, for
  • a low pressure return duct adapted to return the evaporated refrigerant to the compressor.
  • the cold plate which is included in the above mentioned cycle I employ a coil which includes a plurality of rectangular and preferable rectilinear pipe lengths l5.
  • pipe lengths may conveniently be assembled in groups of like length. Two such groups are shown in Figure 1 forming an upper coil C and a lower coil D.
  • Figure 1 The employment of rectilinear pipes provides a coil having flat faces defined by parallel planes. This arrangement is ideal for use in cold plates.
  • I employ a plate having parallels walls It and H which are sealed together at their edges, for example, by the employment of flanges l8 on one such wall welded or otherwise secured as at l9 to the opposite wall.
  • the coil formed of the rectangular tube lengths l5 therefore abuts against the inner faces of the walls It and I! with a maximum area of close contact.
  • I may find it advantageous to employ preformed couplings or connectors which may be bent or otherwise formed from tubing which'is not rectangular in cross vsection.
  • each such connector may terminate at each end in a single common plane as at H, .22.
  • Such a connector may then be easily welded as at 23 to the adjacent end of an adjacent pair of rectangular rectilinear tubes l5. If any excess metal is provided it maybe ground'ofl or otherwise smoothed off to provide a flush surface such as is shown in Figure 4.
  • the diameter of the connector 20 is the same as the diameter of the tubes l5, to provide a maximum contact with the inner faces of the walls l6 and I1.
  • I illustrate a connector having a nipple 25 to receive the end of the refrigerant inlet 9 or of any elbow or connector member applied thereto.
  • One branch of the connector 24 extends to the coil C and the other to an intermediate passage or duct'26 which extends to the upper tube I511. of the coil D.
  • a discharge fitting or connector 21 is employed, one arm of which receives the outlet duct 28 of the coil C.
  • the nipple 30 is in communication with any suitable fitting and is adapted to connect it with the evaporant return duct I 0. It will be understood that any suitable eutectic may be located within the space within the walls l6 and 11. Preferably I also subject the space within the plate to a vacuum.
  • indicates any suitable fitting or valve enclosure where the eutectic fluid may be admitted to the space between the walls I 6 and I! through After the eutectic fluid has been introduced I may employ the fitting 3
  • the ball 3 serves as a check valve against the entry of atmospheric air.
  • 35 is any suitable drainage fitting for draining the eutectic liquid from the interior of the plate.
  • Fig. 2 I illustrate a form of plate the interior of which is largely filled by a eutectic fluid, the top level of the fluid being indicated at X.
  • the volume of the fluid may be varied but that I prefer substantially to .1111 the interior of the plate, while leaving adequate space to take up the expansion of the fluid when it freezes.
  • the fluid not merely serves as a hold-over. but provides the necessary moisture for maintaining a. heat transmitting film between the opposed outer side faces of the coil lengths i and the inner faces of the side walls l6 and I1. If the fluid is admitted through the connector 3
  • I may employ a single coil within the cold plate instead of using the two coils which I show connected in. parallel, as shown in Figure l.
  • I may also employ any suitable means for spacing or supporting the coils in a plate.
  • I illustrate for example, the supports or spacers In in Figure l which may be employed in any suitable size, shape, number, and location.
  • a convenient and valuable embodiment of my invention is a coil having a plurality of rectilinear tubes of rectangular cross section, the tubes being connected to form a continuous coil, but pre formed or separately formed connectors which may advantageously be non-rectangular, or circular in internal cross section.
  • the efilciency of the plate herein shown and claimed depends upon the: adequacy of the heat transfer between the coil, within which the refrigerant is evaporated, and the opposed side walls it and i! of the plate.
  • Sufficient fluid is admitted to the interior of the plate to permit the building up of films.
  • the area occupied by the films is extended by the employment of square tubing, involving a substantial increase of direct heat transfer area, as contrasted to structures in which round or oval tubing is employed.
  • the liquid such as a eutectic. provides the necessary material for the films, whether only a small volume is admitted, as in Fig. 6, or whether a large volume is admitted. as in Fig. 2. In the form of Fig. 6. it may be desirable to agitate the plate. to obtain an initial distribution of the liquid. before exhausting the interior of the plate.
  • the interior is sufficiently exhausted to maintain a substantial atmospheric pressure against the side walls of the plate.
  • the pressure differential may vary widely as desired. depending upon the size of the over-all area of the plate and on the gauge of sheet metal used for the plate side walls. It may, for example, vary within the range of 4 inches or less. of vacuum, to 20 inches or more, of vacuum.
  • the effect of atmospheric pressure against the side walls is to maintain a very close contact between the inner 'faces of the walls and the opposed side faces of the tubing.
  • This pressure difierential results in a heat transfer rate as good as those 'of the metal itself; and far better than the heat transfer conditlon existing where metals are welded, brazed, or soldered together.
  • the procedure is simple, and easily and quickly carried out. The result is a cold plate having very efficient heat transfer characteristics between the refrigerant in the interior of the coil. and the exterior of the plate.
  • rectilinear tubes An important function of the rectilinear tubes is to provide an internal reinforcement for the plates.
  • the plates of the type herein shown are frequently in use in freezing presses and are subjected to heavy pressure in order to compact the substances undergoing freezing between adjacent plates.
  • the provision of rectilinear tubes has the double function, in a structural sense, of resisting inward pressure against the side of the plate, and of holding the outer surfaces of the opposite faces or sides of the plate, to true and parallel planes.
  • the outer pressure of theatmosphere against the walls of the plate maintains the plate as a strong structural element, having substantially true planes at each side, the planes of the outer surfaces of the two sides of the plate being substantially parallel.

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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
US614420A 1945-09-04 1945-09-04 Refrigerating plate and internal reinforcement therefor Expired - Lifetime US2436389A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US614420A US2436389A (en) 1945-09-04 1945-09-04 Refrigerating plate and internal reinforcement therefor
FR922559D FR922559A (fr) 1945-09-04 1946-02-19 Procédé et appareil de réfrigération
DED6166A DE835442C (de) 1945-09-04 1950-09-27 Druckfeste Kuehlplatte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US614420A US2436389A (en) 1945-09-04 1945-09-04 Refrigerating plate and internal reinforcement therefor

Publications (1)

Publication Number Publication Date
US2436389A true US2436389A (en) 1948-02-24

Family

ID=24461187

Family Applications (1)

Application Number Title Priority Date Filing Date
US614420A Expired - Lifetime US2436389A (en) 1945-09-04 1945-09-04 Refrigerating plate and internal reinforcement therefor

Country Status (3)

Country Link
US (1) US2436389A (fr)
DE (1) DE835442C (fr)
FR (1) FR922559A (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492601A (en) * 1947-07-24 1949-12-27 Freez Pak Corp Portable refrigerator
US2744388A (en) * 1954-08-09 1956-05-08 Dole Refrigerating Co Refrigerating car structure
DE952097C (de) * 1952-10-15 1956-11-08 Heinrich Schmitz Jun Verdampfer fuer Kuehlschraenke u. dgl.
US2809019A (en) * 1954-06-24 1957-10-08 Coleman Co Cooling apparatus
DE970213C (de) * 1953-04-10 1958-08-28 Dole Refrigerating Co Vakuumwaermeaustauscherplatte
US3126718A (en) * 1964-03-31 Flamand
US3206121A (en) * 1963-06-04 1965-09-14 Floyd W Bentley Radiant panel heated chicken brooder
US3322190A (en) * 1962-03-01 1967-05-30 Garrett Corp Radiator and method of manufacture therefor
US3423952A (en) * 1967-03-10 1969-01-28 Lloyd R Pugh Ice making apparatus
US3423953A (en) * 1967-04-10 1969-01-28 Aidan Edward Spiller Refrigeration system including a thermostatically controlled valve
US3732919A (en) * 1970-07-01 1973-05-15 J Wilson Heat exchanger
US4379390A (en) * 1977-02-28 1983-04-12 Bottum Edward W Ice-making evaporator
US4712387A (en) * 1987-04-03 1987-12-15 James Timothy W Cold plate refrigeration method and apparatus
US4756164A (en) * 1987-04-03 1988-07-12 James Timothy W Cold plate refrigeration method and apparatus
US5005368A (en) * 1990-02-07 1991-04-09 Calmac Manufacturing Corporation Coolness storage air conditioner appliance
US20090293501A1 (en) * 2008-05-30 2009-12-03 Whirlpool Corporation Ice making in the refrigeration compartment using a cold plate
US20100236761A1 (en) * 2009-03-19 2010-09-23 Acbel Polytech Inc. Liquid cooled heat sink for multiple separated heat generating devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596877A (en) * 1995-08-16 1997-01-28 Baltimore Aircoil Company, Inc. Header and coil arrangement for cooling apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705015A (en) * 1901-12-06 1902-07-22 John J Keller Congealing body or plate for ice-making machines.
US2166161A (en) * 1937-02-27 1939-07-18 Dole Refrigerating Co Cooling apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705015A (en) * 1901-12-06 1902-07-22 John J Keller Congealing body or plate for ice-making machines.
US2166161A (en) * 1937-02-27 1939-07-18 Dole Refrigerating Co Cooling apparatus

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126718A (en) * 1964-03-31 Flamand
US2492601A (en) * 1947-07-24 1949-12-27 Freez Pak Corp Portable refrigerator
DE952097C (de) * 1952-10-15 1956-11-08 Heinrich Schmitz Jun Verdampfer fuer Kuehlschraenke u. dgl.
DE970213C (de) * 1953-04-10 1958-08-28 Dole Refrigerating Co Vakuumwaermeaustauscherplatte
US2809019A (en) * 1954-06-24 1957-10-08 Coleman Co Cooling apparatus
US2744388A (en) * 1954-08-09 1956-05-08 Dole Refrigerating Co Refrigerating car structure
US3322190A (en) * 1962-03-01 1967-05-30 Garrett Corp Radiator and method of manufacture therefor
US3206121A (en) * 1963-06-04 1965-09-14 Floyd W Bentley Radiant panel heated chicken brooder
US3423952A (en) * 1967-03-10 1969-01-28 Lloyd R Pugh Ice making apparatus
US3423953A (en) * 1967-04-10 1969-01-28 Aidan Edward Spiller Refrigeration system including a thermostatically controlled valve
US3732919A (en) * 1970-07-01 1973-05-15 J Wilson Heat exchanger
US4379390A (en) * 1977-02-28 1983-04-12 Bottum Edward W Ice-making evaporator
US4712387A (en) * 1987-04-03 1987-12-15 James Timothy W Cold plate refrigeration method and apparatus
US4756164A (en) * 1987-04-03 1988-07-12 James Timothy W Cold plate refrigeration method and apparatus
US5005368A (en) * 1990-02-07 1991-04-09 Calmac Manufacturing Corporation Coolness storage air conditioner appliance
US20090293501A1 (en) * 2008-05-30 2009-12-03 Whirlpool Corporation Ice making in the refrigeration compartment using a cold plate
US8794014B2 (en) 2008-05-30 2014-08-05 Whirlpool Corporation Ice making in the refrigeration compartment using a cold plate
US20100236761A1 (en) * 2009-03-19 2010-09-23 Acbel Polytech Inc. Liquid cooled heat sink for multiple separated heat generating devices

Also Published As

Publication number Publication date
DE835442C (de) 1952-03-31
FR922559A (fr) 1947-06-12

Similar Documents

Publication Publication Date Title
US2436389A (en) Refrigerating plate and internal reinforcement therefor
US2690653A (en) Stamped plate
CN100437001C (zh) 真空充液装置和真空充液方法
US1898977A (en) Vacuum insulation
US2760346A (en) Refrigerating apparatus of dissimilar metals
US4265094A (en) Unitized refrigeration and water heating system
US2990698A (en) Refrigeration apparatus
US3469415A (en) Heat exchanger for a beverage dispensing machine
US2010504A (en) Liquid cooling and dispensing device
US2597744A (en) Tube-in-tube heat transfer unit
US2436390A (en) Vacuum plate
SE7907683L (sv) Anordning for avtappning av kylmedier
US2538014A (en) Freezer plate
US2096075A (en) Refrigeration apparatus
US3381746A (en) Vapor condensing apparatus
US2012582A (en) Method of making dry system evaporators
US3011767A (en) Cold plate with conversion heater assembly
US2830799A (en) Refrigerating plate unit
US3362187A (en) Evaporator coil construction
US2791106A (en) Evaporator plates
US1815383A (en) Refrigerating system
JPS6015032A (ja) ２層の金属薄板間に流路を形成したパネルを製造する方法
US2441833A (en) Refrigerant evaporator
CN213687400U (zh) 一种立式制冰装置
USRE19778E (en) Method of making evaporators