WO1980001468A1 - Element d'un sechoir pour l'air comprime - Google Patents

Element d'un sechoir pour l'air comprime Download PDF

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Publication number
WO1980001468A1
WO1980001468A1 PCT/CH1980/000001 CH8000001W WO8001468A1 WO 1980001468 A1 WO1980001468 A1 WO 1980001468A1 CH 8000001 W CH8000001 W CH 8000001W WO 8001468 A1 WO8001468 A1 WO 8001468A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
freon
element according
heat exchangers
Prior art date
Application number
PCT/CH1980/000001
Other languages
German (de)
English (en)
Inventor
M Geissmann
Original Assignee
Heatrans Ag
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 Heatrans Ag filed Critical Heatrans Ag
Priority to AT900380A priority Critical patent/AT373385B/de
Publication of WO1980001468A1 publication Critical patent/WO1980001468A1/fr
Priority to DK387880A priority patent/DK387880A/da

Links

Classifications

    • 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
    • F28D7/02—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 being helically coiled
    • F28D7/022—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 being helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • 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
    • F28D7/0041—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 only one medium being tubes having parts touching each other or tubes assembled in panel form

Definitions

  • the invention relates to a refrigeration dryer element for compressed air, each with at least one air-air heat exchanger and one air-freon heat exchanger, the heat exchangers having bent, nested tubes.
  • Refrigeration dryers are increasingly used in connection with compressed air networks to remove the moisture from the air and thus complicated compressed air systems, e.g. Control and regulation systems to be able to operate trouble-free.
  • the air compressed by a compressor is first pre-cooled and then fed at a temperature of approximately 30 ° C. to an air-air heat exchanger in which the air is cooled to approximately 12 ° C.
  • the further cooling of the air takes place in an air-freon heat exchanger, in which a final temperature of the air of about 2 C is reached.
  • the precipitated moisture is then separated in a separator connected to it.
  • the moisture-free air enters the air-air heat exchanger and is used to cool the compressed air
  • a known heat exchanger unit consists of an outer tube with an inner tube arranged coaxially therein, which is bent into a number of turns. To a small height, e.g. of two pipe diameters, it is necessary to arrange the heat exchanger in spirals. However, the production of heat exchanger units with spirally laid turns is difficult in terms of manufacturing technology and is therefore more complex than units with helically arranged pipe turns. For a given heat exchange unit output for the heat exchanger unit, however, the desired small overall height cannot be maintained for a given turn diameter in the case of a helical arrangement of the pipe turns. Although it is known to improve the heat exchange performance of two coaxial tubes by means of internals, this makes the heat exchanger unit complicated and expensive to manufacture.
  • the invention is therefore based on the object of designing a refrigeration dryer of the type described at the outset such that, with the simplest construction of the heat exchanger unit, a helical arrangement of the pipe windings is possible while observing the heat exchange output, the pressure loss, the height and the winding diameter is.
  • the air-air heat exchanger has an outer tube and at least three inner tubes and the air-freon heat exchanger has an outer tube and a coaxial inner have a tube with at least three inner tubes arranged in the coaxial inner tube with mutual line contact.
  • 1 is a side view of two superimposed heat exchangers
  • FIG. 2 is a plan view of the heat exchanger according to FIG. 1,
  • FIG. 6 is a plan view in an enlarged view of the tube ends of an air-freon heat exchanger.
  • the heat exchangers shown in FIGS. 1 and 2 are composed of an air-air heat exchanger 1 and an air-freon heat exchanger 2. Both heat exchangers 1, 2 have a turn length of one and a half turns. This ensures that when heat exchangers are stacked on top of each other, an intermediate space Z is created, through which the Interior space formed by the tube turns is accessible, which is advantageous in the manufacture of a refrigeration dryer.
  • the air-air heat exchanger * is composed of an outer tube 3 and four inner tubes 4, but a different number of inner tubes 4 can also be used.
  • the cooling air flows through the inner tubes 4, for example, and the air to be cooled flows in the interior between the outer tube 3 and the inner tubes 4.
  • the air-freon heat exchanger has, see FIG. 4, an outer tube 3 with a coaxial inner tube 5.
  • Four inner tubes 4 are arranged in the interior of the coaxial inner tube 5. It is essential here that the inner tubes 4 are in line with each other and with the inner wall of the coaxial inner tube 13. For example, the air to be cooled flows through the coaxial inner tube 5 and the inner tubes 4, while the freon flows in the annular space between the outer tube 3 and the coaxial inner tube 5.
  • the two heat exchangers 1, 2 have straight connectors 6 at their ends of the winches, see FIG. 2. With these, the heat exchangers 1, 2 are connected to collectors. In Fig. 2 manifolds 8, 9 are schematically shown for the cooling air and the air to be cooled.
  • a conical connecting support with a connecting pipe 12 connects to the connector 6, while the coaxial inner pipe 5 is connected directly to the collecting pipe 9. Since the one medium flows both in the inner tubes 4 and in the coaxial inner tube 5, only the coaxial inner tube 5 needs to be connected to the collecting tube 9; an undesirable risky and later inaccessible solder joint in the. Freon area. avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Drying Of Gases (AREA)

Abstract

Un echangeur de chaleur air-air (1) et un echangeur de chaleur air-freon (2) forment un element d'un sechoir pour l'air comprime, les deux echangeurs (1, 2) se presentent sous la forme d'un enroulement; leur longueur est d'une spire et demi. L'echangeur de chaleur air-air (1) comporte un tube exterieur (3) et au moins trois tubes interieurs (4), tandis que l'echangeur air-freon (2) comporte un tube exterieur (3) et un tube interieur coaxial (5) a l'interieur duquel sont disposes des tubes (4) en contact entre eux. Les deux echangeurs presentent un manchon (6); les collecteurs (8, 9) sont relies approximativement perpendiculairement au manchon (6).
PCT/CH1980/000001 1979-01-12 1980-01-07 Element d'un sechoir pour l'air comprime WO1980001468A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT900380A AT373385B (de) 1979-01-12 1980-01-07 Kaeltetrockner-element fuer komprimierte luft
DK387880A DK387880A (da) 1979-01-12 1980-09-11 Koeletoerrer-element for komprimeret luft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH323/79 1979-01-12
CH32379A CH635517A5 (de) 1979-01-12 1979-01-12 Kaeltetrockner-vorrichtung fuer komprimierte luft.

Publications (1)

Publication Number Publication Date
WO1980001468A1 true WO1980001468A1 (fr) 1980-07-24

Family

ID=4184395

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1980/000001 WO1980001468A1 (fr) 1979-01-12 1980-01-07 Element d'un sechoir pour l'air comprime

Country Status (9)

Country Link
BE (1) BE881123A (fr)
CH (1) CH635517A5 (fr)
DE (1) DE3028621D2 (fr)
FR (1) FR2446459A1 (fr)
GB (1) GB2058328B (fr)
IT (1) IT1129951B (fr)
NL (1) NL8020001A (fr)
SE (1) SE8006234L (fr)
WO (1) WO1980001468A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003270A1 (fr) * 1981-03-20 1982-09-30 Akerman Gert Ake Elof Echangeur de chaleur
EP0344351A1 (fr) * 1988-06-03 1989-12-06 VIA Gesellschaft für Verfahrenstechnik mbH Gaz frigorigène-échangeur de chaleur, spécialement pour des sécheurs d'air comprimé
WO2005078369A1 (fr) * 2004-02-18 2005-08-25 Renewability Energy Inc. Echangeur de chaleur du type a bobine helicoidale montee sur un tube

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410920A (fr) * 1909-12-29 1910-06-02 Gotthold Hildebrandt Tuyauterie pour échangeurs de chaleur
US2651508A (en) * 1949-11-04 1953-09-08 William M Bready Heat exchange apparatus for liquids containing solids
US3417547A (en) * 1966-12-07 1968-12-24 Gen Erie Corp Method for drying compressed air
US3722583A (en) * 1971-02-22 1973-03-27 Arrow Pneumatics Inc Refrigerated air dryer
CH589467A5 (en) * 1973-10-09 1977-07-15 Droogtech Refrigeration drier of compressed gas - using concentric helically coiled heat exchanger and evaporator heat exchange tubes
FR2344804A1 (fr) * 1976-03-17 1977-10-14 Fimec Echangeur de recuperation thermique
FR2348456A1 (fr) * 1976-04-13 1977-11-10 Lipets Adolf Echangeur de chaleur a elements modulaires et son utilisation
DE2654253A1 (de) * 1976-11-30 1978-06-08 Via Gmbh Vorrichtung zur kaeltetrocknung von gas, insbesondere druckluft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410920A (fr) * 1909-12-29 1910-06-02 Gotthold Hildebrandt Tuyauterie pour échangeurs de chaleur
US2651508A (en) * 1949-11-04 1953-09-08 William M Bready Heat exchange apparatus for liquids containing solids
US3417547A (en) * 1966-12-07 1968-12-24 Gen Erie Corp Method for drying compressed air
US3722583A (en) * 1971-02-22 1973-03-27 Arrow Pneumatics Inc Refrigerated air dryer
CH589467A5 (en) * 1973-10-09 1977-07-15 Droogtech Refrigeration drier of compressed gas - using concentric helically coiled heat exchanger and evaporator heat exchange tubes
FR2344804A1 (fr) * 1976-03-17 1977-10-14 Fimec Echangeur de recuperation thermique
FR2348456A1 (fr) * 1976-04-13 1977-11-10 Lipets Adolf Echangeur de chaleur a elements modulaires et son utilisation
DE2654253A1 (de) * 1976-11-30 1978-06-08 Via Gmbh Vorrichtung zur kaeltetrocknung von gas, insbesondere druckluft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003270A1 (fr) * 1981-03-20 1982-09-30 Akerman Gert Ake Elof Echangeur de chaleur
EP0344351A1 (fr) * 1988-06-03 1989-12-06 VIA Gesellschaft für Verfahrenstechnik mbH Gaz frigorigène-échangeur de chaleur, spécialement pour des sécheurs d'air comprimé
WO2005078369A1 (fr) * 2004-02-18 2005-08-25 Renewability Energy Inc. Echangeur de chaleur du type a bobine helicoidale montee sur un tube
US7322404B2 (en) 2004-02-18 2008-01-29 Renewability Energy Inc. Helical coil-on-tube heat exchanger
US8251133B2 (en) 2004-02-18 2012-08-28 Renewability Energy Inc. Helical coil-on-tube heat exchanger

Also Published As

Publication number Publication date
GB2058328B (en) 1983-04-20
DE3028621D2 (en) 1982-02-11
FR2446459B3 (fr) 1981-10-16
SE8006234L (sv) 1980-09-08
BE881123A (fr) 1980-05-02
IT1129951B (it) 1986-06-11
CH635517A5 (de) 1983-04-15
NL8020001A (nl) 1980-11-28
FR2446459A1 (fr) 1980-08-08
GB2058328A (en) 1981-04-08
IT8019102A0 (it) 1980-01-09

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