EP0117829A1 - Rohrbündelwärmetauscher - Google Patents

Rohrbündelwärmetauscher Download PDF

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Publication number
EP0117829A1
EP0117829A1 EP84440006A EP84440006A EP0117829A1 EP 0117829 A1 EP0117829 A1 EP 0117829A1 EP 84440006 A EP84440006 A EP 84440006A EP 84440006 A EP84440006 A EP 84440006A EP 0117829 A1 EP0117829 A1 EP 0117829A1
Authority
EP
European Patent Office
Prior art keywords
pipes
diameter
annular chamber
exchanger
change
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.)
Granted
Application number
EP84440006A
Other languages
English (en)
French (fr)
Other versions
EP0117829B2 (de
EP0117829B1 (de
Inventor
Daniel Zündel
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9286314&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0117829(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT84440006T priority Critical patent/ATE31811T1/de
Publication of EP0117829A1 publication Critical patent/EP0117829A1/de
Application granted granted Critical
Publication of EP0117829B1 publication Critical patent/EP0117829B1/de
Publication of EP0117829B2 publication Critical patent/EP0117829B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28D7/024—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 only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/40—Shell enclosed conduit assembly
    • Y10S165/44—Coiled conduit assemblies
    • Y10S165/441—Helical

Definitions

  • the present invention relates to the field of construction of thermal machines, in particular heat pumps, and relates to a pipe heat exchanger.
  • the heat exchangers currently existing, of the condenser or evaporator type, are generally constituted by a coil arranged in a heat exchange chamber, in which the coil transmits the heat or cooling energy which it transports to the fluid in change of state, which surrounds it.
  • the present invention aims to overcome these drawbacks.
  • a pipe heat exchanger essentially constituted by pipes arranged in an annular chamber formed by a core and by an external envelope, characterized in that the pipes of the annular chamber all have equal lengths and are wound in the form of contiguous concentric strands, of different pitch in the same direction of alternating or reverse winding, around the core, these strands each consisting of one or more pipes wound on the same generator, the number of pipes increasing with the winding diameter of the tube.
  • the heat exchanger which is essentially constituted by pipes 1 arranged in an annular chamber 2 formed by a core 3 and by an outer casing 4, is characterized in that the pipes 1 all have identical lengths and are wound around the core 3 in the form of concentric joined flanges, which have different pitches, and which are in the same winding direction or alternating inverses.
  • These tubes each consist of one or more pipes 1 wound on the same generator, and the number of pipes 1 is a function of the winding diameter of the tube, and increases with said diameter.
  • the turns of the strands thus wound are contiguous, or practically contiguous, so as to leave only a minimum space for the passage of the fluid in change of state to be heated or cooled, while providing a maximum exchange surface.
  • the pipes 1 are advantageously in large number and have a relatively small diameter and length, allowing, even at low flow rates, relatively rapid flow rates resulting in turbulent flow, and therefore good heat exchange.
  • the passage of the liquid in pipes 1 of small diameter allows an increase in the exchange surface for a given flow rate, so that the thermal efficiency of the exchanger is improved compared to an exchanger comprising a small number of large pipes.
  • the fact of providing relatively short pipes 1 makes it possible to compensate for the increase in pressure losses caused by the turbulent flow due to their small diameter.
  • pipes 1 all having an identical length also makes it possible to standardize the flow rates and pressure drops in said pipes.
  • the embodiment according to the invention therefore ensures an identical temperature change of the liquid for all the pipes, which is very important from the thermodynamic point of view.
  • the free space 5 between the tubes 1 in the annular chamber 2 is reduced to a minimum, which is sufficient for absorb mass flows relatively low fluid change of state in the evaporator or the condenser, these flow rates being much lower than those of the liquid circulating in the pipes 1 and with which the heat exchange takes place.
  • the exchanger according to the invention when used in the form of an evaporator, the preferred position of which is the vertical position, the boiling liquid is in the lower part and the vapors are discharged in the part superior.
  • the fluid subjected to the change of state generally entails a part of the lubricating oil of the compressor, which must therefore be constantly brought back to the latter.
  • the oil-refrigerant mixture is subjected to a distillation as a result of which the non-volatile oil tends to remain and accumulate in the lower part of the evaporator.
  • the invention makes it possible to avoid this accumulation thanks to the reduction in the available volume of the annular chamber 2, which has the effect of causing a forced vertical routing of the oil in the form of droplets or mist entrained by the vapors, which evolve at relatively high speeds.
  • the pipes 1 advantageously have a diameter less than six times their wall thickness, and are formed so as to have neither dead angle nor change in diameter, on the path in contact with the fluid in change of state, and their ends open, by means of short elbows 7 with an internal radius approximately equal to 1.25 diameter, outside the annular chamber 2 in the fluid flow tube 6, in a direction parallel to this tube and to the direction of flow of the liquid at the inlet and at the outlet of the exchanger.
  • Such an embodiment makes it possible to avoid, in the event accidental freezing of the liquid in the pipes 1, destruction of the latter, the pipes 1 withstanding the pressure and the bead of frozen liquid expanding axially.
  • the exchanger according to the invention is more particularly intended for use in refrigeration machines in the form of an evaporator or a condenser, in which the heat exchange takes place between a liquid circulating in the pipes 1 and a fluid in change of state through the annular space 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP84440006A 1983-02-24 1984-02-23 Rohrbündelwärmetauscher Expired - Lifetime EP0117829B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84440006T ATE31811T1 (de) 1983-02-24 1984-02-23 Rohrbuendelwaermetauscher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8303202 1983-02-24
FR8303202A FR2541761B1 (fr) 1983-02-24 1983-02-24 Echangeur de chaleur a tuyaux

Publications (3)

Publication Number Publication Date
EP0117829A1 true EP0117829A1 (de) 1984-09-05
EP0117829B1 EP0117829B1 (de) 1988-01-07
EP0117829B2 EP0117829B2 (de) 1993-04-28

Family

ID=9286314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84440006A Expired - Lifetime EP0117829B2 (de) 1983-02-24 1984-02-23 Rohrbündelwärmetauscher

Country Status (5)

Country Link
US (1) US4790371A (de)
EP (1) EP0117829B2 (de)
AT (1) ATE31811T1 (de)
DE (1) DE3468521D1 (de)
FR (1) FR2541761B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990010836A1 (de) * 1989-03-14 1990-09-20 Hans Stierlin Verdampfer für eine diffusionsabsorptionsanlage
WO1990010835A1 (de) * 1989-03-14 1990-09-20 Hans Stierlin Absorber für eine diffusionsabsorptionsanlage
CN113021705A (zh) * 2021-02-26 2021-06-25 重庆富美包装印务有限公司 无溶剂复合机出料用冷却装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505475B1 (en) 1999-08-20 2003-01-14 Hudson Technologies Inc. Method and apparatus for measuring and improving efficiency in refrigeration systems
US6877552B1 (en) * 2003-10-14 2005-04-12 Komax Systems, Inc Static mixer-heat exchanger
US20100096115A1 (en) * 2008-10-07 2010-04-22 Donald Charles Erickson Multiple concentric cylindrical co-coiled heat exchanger
WO2011151986A1 (ja) * 2010-06-02 2011-12-08 パナソニック株式会社 水素生成装置
CN103438667B (zh) * 2013-08-16 2015-08-12 张周卫 低温液氮用三级回热多股流缠绕管式换热装备
US10307689B2 (en) * 2015-04-01 2019-06-04 Colorado Extraction Systems, LLC Liquid separator and concentrator
CN109387102A (zh) * 2017-08-03 2019-02-26 沈阳天洁环保新能源有限公司 高效旋管式水-水换热器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1251229A (fr) * 1957-10-19 1961-01-20 Procédé d'aménagement d'échangeur de chaleur à faisceaux de tubes ou tiges chauffants et échangeur en comportant application
FR1321766A (fr) 1961-06-12 1963-03-22 Sulzer Ag échangeur de chaleur
FR82652E (fr) * 1957-11-06 1964-03-27 Procédé d'aménagement d'échangeur de chaleur à faisceaux de tubes ou tiges chauffants et échangeur en comportant application
FR1523810A (fr) 1967-05-19 1968-05-03 Richmond Engineering Company échangeur thermique
DE2736489A1 (de) 1977-08-12 1979-02-22 Linde Ag Waermetauscher

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT59448B (de) * 1910-03-11 1913-06-10 Paolo Mejani Speisewasservorwärmer.
US1091369A (en) * 1911-03-08 1914-03-24 Paolo Mejani Feed-water heater.
US1769265A (en) * 1927-04-21 1930-07-01 American Carbonic Machinery Co Heat exchanger
US1915352A (en) * 1931-10-30 1933-06-27 Girdler Corp Heat interchanger and process of making the same
US2508247A (en) * 1945-09-25 1950-05-16 Research Corp Heat interchanger
US3116790A (en) * 1958-03-28 1964-01-07 Kohlenscheidungs Gmbh Tube heat exchanger
NL113071C (de) * 1961-06-12
US3335790A (en) * 1965-04-28 1967-08-15 Technoimpex Magyar Gepipari Ku Heat exchanger with crossing helicoidal tubes
CH477666A (de) * 1966-04-01 1969-08-31 Sulzer Ag Wärmeübertrager
US4313491A (en) * 1978-06-30 1982-02-02 Molitor Industries, Inc. Coiled heat exchanger
US4462463A (en) * 1982-04-21 1984-07-31 Gorham Jr Robert S Triple pass heat exchanger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1251229A (fr) * 1957-10-19 1961-01-20 Procédé d'aménagement d'échangeur de chaleur à faisceaux de tubes ou tiges chauffants et échangeur en comportant application
FR82652E (fr) * 1957-11-06 1964-03-27 Procédé d'aménagement d'échangeur de chaleur à faisceaux de tubes ou tiges chauffants et échangeur en comportant application
FR1321766A (fr) 1961-06-12 1963-03-22 Sulzer Ag échangeur de chaleur
FR1523810A (fr) 1967-05-19 1968-05-03 Richmond Engineering Company échangeur thermique
DE2736489A1 (de) 1977-08-12 1979-02-22 Linde Ag Waermetauscher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990010836A1 (de) * 1989-03-14 1990-09-20 Hans Stierlin Verdampfer für eine diffusionsabsorptionsanlage
WO1990010835A1 (de) * 1989-03-14 1990-09-20 Hans Stierlin Absorber für eine diffusionsabsorptionsanlage
CN113021705A (zh) * 2021-02-26 2021-06-25 重庆富美包装印务有限公司 无溶剂复合机出料用冷却装置

Also Published As

Publication number Publication date
EP0117829B2 (de) 1993-04-28
FR2541761A1 (fr) 1984-08-31
EP0117829B1 (de) 1988-01-07
US4790371A (en) 1988-12-13
ATE31811T1 (de) 1988-01-15
FR2541761B1 (fr) 1989-02-10
DE3468521D1 (en) 1988-02-11

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