WO1989001110A1 - Dispositif de transfert thermique - Google Patents

Dispositif de transfert thermique Download PDF

Info

Publication number
WO1989001110A1
WO1989001110A1 PCT/FI1988/000094 FI8800094W WO8901110A1 WO 1989001110 A1 WO1989001110 A1 WO 1989001110A1 FI 8800094 W FI8800094 W FI 8800094W WO 8901110 A1 WO8901110 A1 WO 8901110A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
refrigerant
groove
heat transfer
jacket
Prior art date
Application number
PCT/FI1988/000094
Other languages
English (en)
Inventor
Kauno Touko Ensio Laiho
Original Assignee
Pakkastappi Oy
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
Priority claimed from FI873322A external-priority patent/FI76415C/fi
Application filed by Pakkastappi Oy filed Critical Pakkastappi Oy
Publication of WO1989001110A1 publication Critical patent/WO1989001110A1/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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/103—Means for stopping flow from or in pipes or hoses by temporarily freezing liquid sections in the pipe
    • 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
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium

Definitions

  • the invention relates to a heat transfer device to be used in the repair of water pipes and intended for preventing the flow of liquid through a pipe and forming a part of a closed refrigeration system, the device forming an evaporator for a refrigerant.
  • the object of the present invention is to pro ⁇ vide a device which avoids the above-mentioned draw ⁇ backs.
  • a further object is to provide a device which , can be adapted to pipes of different sizes and which is easy to arrange into working spots difficult to reach. This is achieved by means of a device according to the invention, which is characterized in that the device is provided with a groove adapted for at least one pipe size and shape.
  • the invention is based on the idea that there is provided around the pipe section to be refrigerated a closed refrigerant circuit, which is easy to fit tightly around the pipe section or a refrigerating me- dium circuit which is connected to a separate cooling medium circuit.
  • a closed refrigerant circuit which is easy to fit tightly around the pipe section or a refrigerating me- dium circuit which is connected to a separate cooling medium circuit.
  • the repair can be carried ' out more rapidly, and adverse environmental effects are avoided; on the other hand, the device can be used in any environment.
  • the device and its connec- tions are easy to construct using existing convention ⁇ al refrigerating units.
  • Figure 1 shows a heat transfer device com ⁇ prising preformed grooves for different pipes sizes and shapes
  • Figure 2 shows a heat transfer device com ⁇ prising two parts movable in parallel with respect to each other on a slide;
  • Figure 3 shows a heat transfer device provided with a straining strap
  • Figure 4 shows a heat transfer device com ⁇ prising two jacket portions hinged on to each other
  • Figure 5 shows a heat transfer device com ⁇ prising a flexible jacket connected to a separate cooling circuit.
  • the heat transfer device of Figure 1 comprises two evaporation chambers 1 and 2 which are hinged on to each other by a flexible tube 4.
  • the tube, and the refrigerant flowing therethrough, is arranged to first go into one chamber 1 and out of it through the end * facing the pipe; then it returns to the other end of
  • the tube ends are connected to a supply and return tube 5 and 6, respectively, of a refrigerating unit 7.
  • the chambers are provided with grooves 8 for pipes of different sizes and shapes.
  • the grooves can f rther be provided with thermally conductive fitting parts 9. 15
  • the chambers can be tightened with respect to each • other by means of screws 3.
  • the heat transfer device of Figure 2 comprises two evaporation chambers 11 and 12 movable with re ⁇ spect to each other on a slide (not shown) .
  • Refriger- 20 ant tubes 4a, 4b are connected to the refrigerant cir ⁇ cuit as described above.
  • the flow of the refrigerant is arranged to take place either through both chambers (A) or through one chamber only (B) .
  • a groove 18 pro ⁇ vided in the chambers 11 and 12 for the pipe to be re- 25 frigerated may also comprise thermally conductive fitting parts for different pipe sizes and shapes.
  • the embodiment of Figure 3 comprises a single • evaporation chamber 21 through which the refrigerant flow is arranged to take place.
  • the tubes 4auß, 4b are s 30 connected to the refrigerant circuit as described above.
  • the device is intended to be fitted around the > pip® "to be refrigerated by means of a thermally con ⁇ ductive straining strap 22.
  • the strap is strained by means of latch means 23.
  • Various thermally conductive 35 fitting parts 29 can be used between the chamber 21 and the pipe.
  • the end face of the chamber can also be formed according to a pipe.
  • the heat transfer device of Figure 4 is formed by two jacket portions 31 and 32 hinged on to each other and acting as an evaporator.
  • the jacket portions correspond to the pipe to be refrigerated in shape so that they together enclose the pipe.
  • the flow of the refrigerant is arranged through the tube 4a into the first jacket portion 31, where it is passed on by guide ribs 34, and further through a connecting tube 33 into the second jacket portion 32, wherefrom it is discharged through the tube 4b.
  • the jacket portions can be provided with evacuating means.
  • the above-men ⁇ tioned refrigerant circuit is connected to the tubes 4a and 4b. Such a structure is intended primarily for large pipes.
  • the heat transfer device of Figure 5 is formed by a jacket 41 made of a flexible material such as plastic. Liquid guide ribs 44 are provided within said jacket.
  • the jacket can be fitted tightly around the pipe to be refrigerated and fixed by a sticker or a fixing spring, for instance.
  • the ' jacket 41 forms part of a separate closed ⁇ heat • transfer circuit A which is connected via a heat exchanger (evaporator) B to a separate closed cooling medium circuit (freon) C known per se.
  • the heat transfer liquid may be glycol or a mixture of water and alcohol which do not freeze at temperatures oc ⁇ curring during the repair.
  • the circulation of the li- quid can be effected by a pump P, such as a piston pump or a gear-type pump.
  • a double hose connected at the bending point thereof by a U-shaped part.
  • the hose can be corre- spondingly fitted around the pipe to be refrigerated and fixed e.g. with a sticker or a tension spring.
  • Both the jacket and the hose can be coated with a material having poor adhesive properties for improv ⁇ ing adherence and adaptability (heat transfer) . Corre- spondingly, they can be insulated for improving effi ⁇ ciency.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Abstract

La présente invention se rapporte à un dispositif de transfert thermique, en particulier du type à mâchoires, qui est destiné à empêcher l'écoulement de liquide à travers un tuyau et qui fait partie d'un système de réfrigération fermé, ledit dispositif formant un évaporateur pour un réfrigérant. Il comprend principalement une structure de chambre (1, 2), dans laquelle s'effectue l'expansion du réfrigérant, et il est pourvu d'une ouverture (8) adaptée à au moins une grandeur et une forme de tuyau. L'ouverture peut également être munie de parties d'ajustage (9). On obtient ainsi un dispositif de réfrigération de tuyau destiné à diverses utilisations qui ne nuit pas à l'environnement et qui n'est pas dangereux pour les utilisateurs.
PCT/FI1988/000094 1987-07-30 1988-06-10 Dispositif de transfert thermique WO1989001110A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI873322A FI76415C (fi) 1986-11-17 1987-07-30 Vaermeoeverfoeringsanordning.
FI873322 1987-07-30

Publications (1)

Publication Number Publication Date
WO1989001110A1 true WO1989001110A1 (fr) 1989-02-09

Family

ID=8524846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1988/000094 WO1989001110A1 (fr) 1987-07-30 1988-06-10 Dispositif de transfert thermique

Country Status (1)

Country Link
WO (1) WO1989001110A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559078A1 (fr) * 1992-03-03 1993-09-08 Rothenberger Werkzeuge-Maschinen Gmbh Agrafe de refroidissement pour congélation des conduites
WO1994021955A1 (fr) * 1993-03-18 1994-09-29 Lothar Beise Procede et dispositif de realisation d'un tampon dans une conduite
EP0736721A1 (fr) * 1995-04-08 1996-10-09 Winkler, Konrad, Dr.-Ing. habil. Appareil pour colmater une fuite d'un réservoir
DE19617619A1 (de) * 1995-05-31 1996-12-12 Spectronics Corp Vorrichtung bzw. Verdampfer zum Vereisen eines Rohrabschnitts
WO2000068624A1 (fr) 1999-05-06 2000-11-16 Arthur Radichio Congelateur de conduit
EP2985505A1 (fr) * 2014-08-11 2016-02-17 Spectronics Corporation Système de congélateur de conduit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE135309C1 (fr) *
US3559423A (en) * 1969-08-08 1971-02-02 Werner Scheidler Equipment for working on liquid-filled conduits
DE2330807A1 (de) * 1973-06-16 1975-01-09 Flomatic Corp Vorrichtung zum einfrieren von mediendurchstroemten leitungen
US4370862A (en) * 1976-09-13 1983-02-01 Brister Incorporated Apparatus and method for freezing a slug of liquid in a section of a large diameter fluid transmission line
DE3232603A1 (de) * 1982-09-02 1984-03-08 Messer Griesheim Gmbh, 6000 Frankfurt Vorrichtung zum einfrieren einer fluessigkeit in einer rohrleitung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE135309C1 (fr) *
US3559423A (en) * 1969-08-08 1971-02-02 Werner Scheidler Equipment for working on liquid-filled conduits
DE2330807A1 (de) * 1973-06-16 1975-01-09 Flomatic Corp Vorrichtung zum einfrieren von mediendurchstroemten leitungen
US4370862A (en) * 1976-09-13 1983-02-01 Brister Incorporated Apparatus and method for freezing a slug of liquid in a section of a large diameter fluid transmission line
DE3232603A1 (de) * 1982-09-02 1984-03-08 Messer Griesheim Gmbh, 6000 Frankfurt Vorrichtung zum einfrieren einer fluessigkeit in einer rohrleitung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559078A1 (fr) * 1992-03-03 1993-09-08 Rothenberger Werkzeuge-Maschinen Gmbh Agrafe de refroidissement pour congélation des conduites
WO1994021955A1 (fr) * 1993-03-18 1994-09-29 Lothar Beise Procede et dispositif de realisation d'un tampon dans une conduite
EP0736721A1 (fr) * 1995-04-08 1996-10-09 Winkler, Konrad, Dr.-Ing. habil. Appareil pour colmater une fuite d'un réservoir
DE19617619A1 (de) * 1995-05-31 1996-12-12 Spectronics Corp Vorrichtung bzw. Verdampfer zum Vereisen eines Rohrabschnitts
DE19617619C2 (de) * 1995-05-31 1998-07-16 Spectronics Corp Vorrichtung zum Vereisen eines Rohrabschnitts
WO2000068624A1 (fr) 1999-05-06 2000-11-16 Arthur Radichio Congelateur de conduit
US6286329B1 (en) 1999-05-06 2001-09-11 Arthur Radichio Pipe freezer
EP2985505A1 (fr) * 2014-08-11 2016-02-17 Spectronics Corporation Système de congélateur de conduit
JP2016038199A (ja) * 2014-08-11 2016-03-22 スペクトロニクス・コーポレイションＳｐｅｃｔｒｏｎｉｃｓ Ｃｏｒｐｏｒａｔｉｏｎ 管冷凍システム
US9574694B2 (en) 2014-08-11 2017-02-21 Spectronics Corporation Pipe freezer system

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