WO1990015293A1 - Chemise refrigerante - Google Patents

Chemise refrigerante Download PDF

Info

Publication number
WO1990015293A1
WO1990015293A1 PCT/NO1990/000069 NO9000069W WO9015293A1 WO 1990015293 A1 WO1990015293 A1 WO 1990015293A1 NO 9000069 W NO9000069 W NO 9000069W WO 9015293 A1 WO9015293 A1 WO 9015293A1
Authority
WO
WIPO (PCT)
Prior art keywords
jacket
bottle
cooling
gas bottle
refrigerant
Prior art date
Application number
PCT/NO1990/000069
Other languages
English (en)
Inventor
John Bratteland
Magne Fosse
Original Assignee
Norsk Hydro A.S
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 Norsk Hydro A.S filed Critical Norsk Hydro A.S
Publication of WO1990015293A1 publication Critical patent/WO1990015293A1/fr

Links

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
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/105—Movable containers
    • 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
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • 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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/006—Other cooling or freezing apparatus specially adapted for cooling receptacles, e.g. tanks
    • F25D31/007—Bottles or cans
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/803—Bottles

Definitions

  • the present invention relates to a cooling jacket for cooling of gas bottles, for recovery and storage of refrigerant such as CFC - chlor fluor carbon (i.e. Freon and Iscenon) from cooling systems.
  • refrigerant such as CFC - chlor fluor carbon (i.e. Freon and Iscenon) from cooling systems.
  • the invention relates to the use of a cooling jacket which covers the essential part of a gas bottle or the like, and where a cooling medium (for instance liquid C0 2 ) is feed into the space between the gas bottle and the cooling jacket.
  • the cooling jacket comprises mainly a cover made of one or more layers of flexible isolating material which has at least one supply nozzle and tube for transportation of the cooling medium through the cooling area.
  • Cooling systems which are handled and maintained by the refrigeration industry represents in this respect a possible pollusion source.
  • Large cooling systems are emptied for refrigerant by using equipment comprising a suction accumulator, a compressor and connection means. Intermediate and small systems are often blown off directly to the atmos ⁇ phere and contributes to the destruction of the ozone layer. Therefore, we have to expect that the authorities will enforce regulations for blowing off refrigerant to the atmosphere.
  • Known equipment for recovering of refrigerant comprises as said previously, an accumulator, compressor and means for connecting the accumulator to the cooling system.
  • the com ⁇ pressor evacuates the suction accumulator so that the refri ⁇ gerant will flow from the cooling system to the accumulator.
  • This equipment has a relatively complicated design, it is heavy and dependent on supply of electricity. Cooling systems with difficult access can therefore not easily be serviced by said equipment.
  • the procedure normally used for emptying system with a difficult access is to cool an empty gas bottle to obtain vacuum. This is done in for instance an ordinary freezer. The method is unpractical because the time for transporting the gas bottle from the freezer to the cooling system has to be very short, and the bottle will be heated which in turn will result in that the suction pressure due to lower vacuum will be reduced.
  • the known procedure is therefore burdensome and unpractical to use for reclaiming refrigerant in cooling systems which has difficult access.
  • the object of the present invention is to provide a technique for reclaiming and transportation of refrigerant from cooling systems which is
  • the inventors had to evaluate the state of the art.
  • the inventors valued a method based on prior cooling of the gas bottle as the most promising because it was very mobile, smallest in weight and volume and simple to use. The problem was therefore to find a method for cool ⁇ ing the gas bottle at the area of application.
  • the inventors' know-how in gas application and cooling of pipes for iceplug- ging gave them the idea of applying CO- as a cooling medium for the gas bottles.
  • Liquid C0_ will immediately after being pulverized into air, form snow crystals with a temperature of -78°C. This temperature is almost independent of the room temperature, and it will be sufficient for cooling the gas bottle to the required temperature.
  • Tests showed that by covering the essential parts of the gas bottle with a jacket and thereafter feeding the liquid C0 2 into the space between the jacket and gas bottle, resulted in a temperature in the gas bottle sufficiently low to form a vacuum and thereby provide transfer of the refrigerant from the cooling system to the gas bottle.
  • the vacuum was main ⁇ tained until the pressure in the gas bottle and cooling system was equalized, or until the temperature in the gas bottle increased.
  • the method according to the present invention is simple to use, has a very efficient cooling with low energy consumption and the volume and weight can be adjusted according to the need.
  • the refrigerant is by the present invention fed on empty, cold gas bottles, whereafter the filled bottles are returned for re-use and cleaning of the refrigerant.
  • Fig. 1 illustrates a standard Isceon gas bottle.
  • Fig. 2 illustrates the cooling jacket according to the invention.
  • Fig. 3 illustrates the invention comprising connection tubes to a cooling system (not shown) , where the cooling jacket and gas bottle is shown partly in a sectional view.
  • Fig. 1 illustrates a standard Isceon gas bottle of the simi ⁇ lar type which is delivered by Isceon to intermediate and small industrial cooling systems.
  • a standard Isceon gas bottle comprises a sylindrical section or wall 1, a bottom part 3 and a protection cup 2 for the valves 8 (not shown) .
  • Fig. 2 and 3 illustrates the cooling jacket equipped accord ⁇ ing to the invention.
  • the cooling jacket comprises a speci ⁇ ally designed cover 4 made of an outer and an inner layer 12 of strong flexible material of woven fabric which covers an inner, isolating core 11 which is also made of flexible material such as foam rubber or the like.
  • the jacket has at its upper and bottom part a line or cord 6 for tightening the jacket around the Isceon gas bottle.
  • the upper part of the jacket is also equipped with nozzles 7 mounted through the jacket and pointing towards the wall 1 of the gas bottle. Two and two nozzles are interconnected by using tubular, sectional couplings 13, where only one is shown in Fig. 2. On the opposite side of the jacket there is a second coupling.
  • Fig. 3 illustrates a complete system for filling of refriger ⁇ ant on gas bottles.
  • the gas bottle and the jacket is illust ⁇ rated in a partial sectional view.
  • the cooling jacket covers most of the Isceon gas bottle.
  • the cooling jacket is put on to the gas bottle from the top. Thereafter the cord 6 is tightened, at least at the bottom of the gas bottle.
  • Suitable CO--tight pressure tubes 5 are connecting the coup ⁇ lings 13 to the bottle filled with liquid C0 2 .
  • This bottle has a riser tube and a C0 2 outlet, and for each of the tubes 5 there is a connection to the couplings 13 on each side of the cooling jacket 14.
  • the nozzles 7 have a conicity of approx. 60°.
  • the nozzle is made of brass or other suitable material.
  • the bottle filled with liquid C0 2 are connected to the Isceon gas bottle by the tube 5.
  • Liquid CO- are feed from the C0 2 bottle via the tube 5 to the space between the jacket 4 and the gas bottle wall 1 where the snow crystalles 10 are for ⁇ med.
  • This space are after a short time filled with snow at a temperature of approx. -78°C.
  • the C0 2 snow 10 is surprisingly easy distributed in this space and will after a short time fill the space and cover the gas bottle from the bottom to the top. It is therefore sufficient to mount the nozzles close to the top and not at the top of the jacket, because the C0 2 snow will be distributed to the bottom and cover the total volume of the space between the gas bottle and the cover.
  • the cooling system and the gas bottle 1 are connected by the tube 9.
  • the refrigerant are due to the vacuum in the gas bottle, sucked into the bottle when the valve 8 is opened.
  • the inventors have solved the prob ⁇ lem on how to reclaim refrigerant from cooling systems which has a difficult access.
  • the invention mainly relates to reclaiming and storing of refrigerant, it is obvious that the apparatus and method can be applied for various other types of liquids and gases. It is also obvious that the method can be applied using a cooling medium other than liquid C0 2 - It is further obvious that the cooling jacket can be used for cooling other types of gas bottles, such as various forms of collecting tanks or boxes etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Procédé et appareil servant au refroidissement d'une bouteille afin de récupérer et de stocker un réfrigérant tel que le CFC. Le procédé comporte une chemise réfrigérante (4) recouvrant une bouteille (1). Un agent réfrigérant tel que le dioxyde de carbone liquéfié est introduit dans l'espace entre la chemise et la bouteille, engendrant ainsi un vide dans la bouteille (1) grâce à l'abaissement de la température. Le réfrigérant est aspiré du système de refriodissement et vers la bouteille (1).
PCT/NO1990/000069 1989-05-30 1990-04-19 Chemise refrigerante WO1990015293A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO892183 1989-05-30
NO892183A NO166894C (no) 1989-05-30 1989-05-30 Fremgangsmaate ved fylling av gassbeholdere.

Publications (1)

Publication Number Publication Date
WO1990015293A1 true WO1990015293A1 (fr) 1990-12-13

Family

ID=19892081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1990/000069 WO1990015293A1 (fr) 1989-05-30 1990-04-19 Chemise refrigerante

Country Status (2)

Country Link
NO (1) NO166894C (fr)
WO (1) WO1990015293A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543214A1 (fr) * 1991-11-19 1993-05-26 ZEO-TECH Zeolith Technologie GmbH Dispositif de refroidissement et procédé pour refroidir un fluide dans un récipient
FR2798727A1 (fr) * 1999-09-22 2001-03-23 Air Liquide Conteneur cryogenique a reserve d'azote liquide
EP1067340A3 (fr) * 1999-07-05 2001-07-04 Matsushita Electric Industrial Co., Ltd. Piège pour recueillir le gaz de remplacement dans un dispositif de conditionnement d'air
EP1206668A1 (fr) * 1999-08-02 2002-05-22 John G. Brothers Dispositif de stockage cryog nique
US20170299248A1 (en) * 2016-03-16 2017-10-19 Wal-Mart Stores, Inc. Systems and methods for cooling products during transportation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625804A (en) * 1949-06-28 1953-01-20 Novadelagene Corp Barrel cooling apparatus
US4653290A (en) * 1986-06-24 1987-03-31 Byrne Shelley R Beer keg ice sleeve and method of making same
EP0250914A2 (fr) * 1986-07-03 1988-01-07 Messer Griesheim Gmbh Procédé pour retirer des réfrigérants à bas point d'ébullition des installations frigorifiques ou de conditionnement d'air
DE8801516U1 (fr) * 1988-02-06 1988-03-17 Sanden, Josephus Antonius, Van Der, Eindhoven, Nl
US4802344A (en) * 1987-07-06 1989-02-07 Livingston Mark L Portable cooler for beverage kegs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625804A (en) * 1949-06-28 1953-01-20 Novadelagene Corp Barrel cooling apparatus
US4653290A (en) * 1986-06-24 1987-03-31 Byrne Shelley R Beer keg ice sleeve and method of making same
EP0250914A2 (fr) * 1986-07-03 1988-01-07 Messer Griesheim Gmbh Procédé pour retirer des réfrigérants à bas point d'ébullition des installations frigorifiques ou de conditionnement d'air
US4802344A (en) * 1987-07-06 1989-02-07 Livingston Mark L Portable cooler for beverage kegs
DE8801516U1 (fr) * 1988-02-06 1988-03-17 Sanden, Josephus Antonius, Van Der, Eindhoven, Nl

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543214A1 (fr) * 1991-11-19 1993-05-26 ZEO-TECH Zeolith Technologie GmbH Dispositif de refroidissement et procédé pour refroidir un fluide dans un récipient
EP1067340A3 (fr) * 1999-07-05 2001-07-04 Matsushita Electric Industrial Co., Ltd. Piège pour recueillir le gaz de remplacement dans un dispositif de conditionnement d'air
EP1206668A1 (fr) * 1999-08-02 2002-05-22 John G. Brothers Dispositif de stockage cryog nique
EP1206668A4 (fr) * 1999-08-02 2002-10-23 John G Brothers Dispositif de stockage cryog nique
FR2798727A1 (fr) * 1999-09-22 2001-03-23 Air Liquide Conteneur cryogenique a reserve d'azote liquide
EP1087193A1 (fr) * 1999-09-22 2001-03-28 L'air Liquide Société Anonyme pour l'étude et l'exploitation des procédés Georges Claude Conteneur cryogénique à réserve d'azote liquide et utilisation pour le stockage de produits biologiques
US20170299248A1 (en) * 2016-03-16 2017-10-19 Wal-Mart Stores, Inc. Systems and methods for cooling products during transportation
US10274251B2 (en) * 2016-03-16 2019-04-30 Walmart Apollo, Llc Systems and methods for cooling products during transportation

Also Published As

Publication number Publication date
NO166894C (no) 1991-09-11
NO892183L (no) 1990-12-03
NO166894B (no) 1991-06-03
NO892183D0 (no) 1989-05-30

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