EP0117829B2 - Rohrbündelwärmetauscher - Google Patents

Rohrbündelwärmetauscher Download PDF

Info

Publication number
EP0117829B2
EP0117829B2 EP84440006A EP84440006A EP0117829B2 EP 0117829 B2 EP0117829 B2 EP 0117829B2 EP 84440006 A EP84440006 A EP 84440006A EP 84440006 A EP84440006 A EP 84440006A EP 0117829 B2 EP0117829 B2 EP 0117829B2
Authority
EP
European Patent Office
Prior art keywords
tubes
diameter
pipes
coils
contiguous
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
EP84440006A
Other languages
English (en)
French (fr)
Other versions
EP0117829A1 (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
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=9286314&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0117829(B2) "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
Publication of EP0117829B1 publication Critical patent/EP0117829B1/de
Application granted granted Critical
Publication of EP0117829B2 publication Critical patent/EP0117829B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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.
  • DE-A-2 736 489 also discloses a heat exchanger comprising pipes of substantially equal length, and of the same diameter, which are wound in concentric tubes around a core and in one direction of winding.
  • the pipes of these tubes are not, however, contiguous, but are connected to an intermediate screen serving, moreover, for heat exchange.
  • FR-A-1 523 810 describes an embodiment with pipes of relatively long lengths, not allowing free axial expansion in the event of accidental freezing, when the exchanger is used as an evaporator.
  • a heat exchanger constituted by coils in concentric tubes of pipes, but whose pipes are of unequal lengths, these tubes being, moreover, maintained at regular spacing by means spacers.
  • This exchanger has substantially the same characteristics as that object of FR-A-1523 810 and has the same drawbacks as the latter.
  • this exchanger needs long loops in order to make the connection between the tubes and the tubular plates, this to obtain an exchanger whose length of all the pipes is equal.
  • the diameter of the pipes is relatively large compared to the wall thickness and their length is important.
  • US-A-1 091 369 discloses a heater for a steam boiler having different flow rates in the different tubes.
  • all the tubes are wound in the same direction, which increases the pressure losses in the case of a fluid in change of state.
  • the problem posed by the invention therefore consists in producing a compact exchanger, without this compactness having a negative influence, on the one hand, on the thermal efficiency and, on the other hand, on the pressure drops.
  • security is sought in the event of accidental freezing.
  • the subject of the invention is a pipe heat exchanger, essentially constituted by pipes arranged in an annular chamber formed by a core and by an external envelope, the pipes of the annular chamber all having equal lengths, being wound in the form of concentric tubes around the core and whose turns are wound in an inverse, alternating fashion, each tube being made up of one or more pipes wound on the same generator, the name bre of pipes increasing with the winding diameter of the rod, said pipes being formed so as to have neither dead angle nor change in diameter, on the path in contact with the fluid in change of state, their ends opening into the next tube 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, the tubes being wound in different steps, the turns of the tubes being contiguous, or practically contiguous, and do not leaving only a minimum space for the passage of the fluid in change of state to be heated or cooled, characterized in that the concentric tubes are joined, in that the pipes have a diameter and a length allowing flow
  • the figure of the appended drawing shows, by way of example, the heat exchanger according to the invention, which essentially consists of pipes 1 arranged in an annular chamber 2 formed by a core 3 and by an outer casing 4.
  • the pipes of this exchanger all have identical lengths and are wound around the core 3 in the form of contiguous concentric strands which have different pitches, and which are wound in alternating reverse fashion.
  • These tubes are each made up of one or more pipes 1 wound on the same generator, and the number of pipes 1 depends on the winding diameter of the pipe, and increases with said diameter.
  • the turns of the strands thus wound are joined, 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 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.
  • 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 change in temperature of the liquid for the pipes, which is very important from the thermodynamic point of view.
  • the free space 5 between the tubes 5 in the annular chamber 2 is reduced to a minimum, which is sufficient for absorb the relatively low mass flow rates of the fluid in 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 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 of accidental freezing of the liquid in the pipes 1, destruction of the latter, the pipes 1 resisting the pressure and the frozen liquid bead expanding axially.
  • the exchanger according to the invention is more particularly intended for use in machines refrigerators in the form of an evaporator or condenser, in which the heat exchange takes place between a liquid circulating in the pipes 1 and a fluid in change of state passing 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)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (1)

1. Röhrenwärmetauscher, im wesentlichen bestehend aus Röhren (1), die in einer ringförmigen, aus einem Kern (3) und einem Außenmantel (4) gebildeten, ringförmigen Kammer (2) angeordnet sind, wobei die alle die gleiche Länge aufweisenden Röhren (1) der ringförmigen Kammer (2) um den Kern (3) als konzentrische Spiralen gerollt sind und deren Windungen abwechselnd umgekehrt eingerollt sind, jede Spirale aus einer oder mehreren, auf einer gleichen Mantellinie aufgerollten Röhren (1) besteht, wobei sich die Anzahl der Röhren (1) mit dem Wickeldurchmesser der Spirale erhöht, diese Röhren so gestaltet sind, daß sie weder einen toten Winkel, noch eine Änderung des Durchmessers auf der Kontaktstrecke mit dem Fluid bei der Zustandsänderung aufweisen, ihre Enden im Rohr (6) entsprechend einer zu diesem Rohr parallelen Richtung und zur Abflußrichtung der Flüssigkeit am Eingang und Ausgang des Wärmetauschers münden, die Spiralen nach verschiedenen Steighöhen entwickelt sind, die Spiralwindungen nebeneinander oder praktisch nebeneinander liegen, und nur einen minimalen Zwischenraum für den Durchfluß des Fluides bei der Zustandsänderung des Erwärmens oder Abkühlens lassen, dadurch gekennzeichnet, daß die konzentrischen Spiralen nebeneinander liegen, daß die Röhren (1) einen Durchmesser und eine Länge aufweisen, die schnelle Durchflußgeschwindigkeiten ermöglichen, und einen Durchmesser, der geringer ist als ihre sechsfache Wanddicke, und ihre Enden über kurze Krümmer (7), mit einem Innenradius ungefähr gleich 1,25 Durchmesser, außerhalb der ringförmigen Kammer (2) in dem Fluidabflußrohr (6) münden.
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 EP0117829A1 (de) 1984-09-05
EP0117829B1 EP0117829B1 (de) 1988-01-07
EP0117829B2 true 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)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325684A (en) * 1989-03-14 1994-07-05 Hans Stierlin Absorber for a diffusion absorption plant
CH678103A5 (de) * 1989-03-14 1991-07-31 Hans Stierlin
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
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (13)

* 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
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
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
EP0117829A1 (de) 1984-09-05
EP0117829B1 (de) 1988-01-07
FR2541761A1 (fr) 1984-08-31
US4790371A (en) 1988-12-13
ATE31811T1 (de) 1988-01-15
DE3468521D1 (en) 1988-02-11
FR2541761B1 (fr) 1989-02-10

Similar Documents

Publication Publication Date Title
AU762476B2 (en) High efficiency refrigeration system
EP0117829B2 (de) Rohrbündelwärmetauscher
EP0701680B1 (de) Rippenröhre für wärmetauscher für klima und kühlungsanlagen und entsprechende wärmetauscher
EP1592930A1 (de) Kondensator, insbesondere f r einenkraftfahrzeugluftklimatisierungskreislauf
FR2461915A1 (fr) Garniture a ailettes fabriquee a partir de bandes metalliques et destinees a ameliorer la transmission de chaleur
CH644684A5 (fr) Rechauffeur atmospherique.
EP0058628B1 (de) Wärmeaustauscher mit einer Kapillarstruktur für Kältemaschinen und/oder für Wärmepumpen
RU2451886C2 (ru) Теплообменник
EP0171412A1 (de) Wärmeaustauscher.
CH635922A5 (fr) Echangeur de chaleur a enceinte en spirale et procedes pour sa fabrication.
EP2080975A1 (de) Vorrichtung zum Wärmeaustausch zwischen Flüssigkeiten, die zwei verschiedenen Kreisläufen angehören
EP0203104A1 (de) Ofen mit verbesserter wärmeabsorption
US20060108108A1 (en) Spirally wound, layered tube heat exchanger and method of manufacture
EP0481842B1 (de) Heizvorrichtung für eine Flüssigkeit einer Scheibenwaschanlage in Kraftfahrzeugen
FR2823382A1 (fr) Moteur electrique comprenant un systeme de refroidissement perfectionne
FR2494829A3 (fr) Perfectionnements aux echangeurs de temperature du type coaxial
WO2015107314A1 (fr) Tube amélioré pour échangeur thermique
BE561245A (de)
FR2616215A1 (fr) Echangeur de chaleur circulaire
FR2963418A1 (fr) Echangeur pour pompe a chaleur
BE690577A (de)
FR2570172A1 (fr) Echangeur perfectionne a tubes multiples
FR2540226A1 (fr) Perfectionnement aux recuperateurs de calories a circulation de liquide a incorporer dans un foyer
BE498219A (de)
FR2664368A1 (fr) Echangeur de chaleur, monte sur vehicule, du type a flux parallele.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19850301

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 31811

Country of ref document: AT

Date of ref document: 19880115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3468521

Country of ref document: DE

Date of ref document: 19880211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880229

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: LINDE AKTIENGESELLSCHAFT, WIESBADEN

Effective date: 19881007

NLR1 Nl: opposition has been filed with the epo

Opponent name: LINDE AG

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890222

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890224

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19890227

Year of fee payment: 6

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890228

Year of fee payment: 6

Ref country code: GB

Payment date: 19890228

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890308

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890314

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900223

Ref country code: AT

Effective date: 19900223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900228

Ref country code: CH

Effective date: 19900228

Ref country code: BE

Effective date: 19900228

BERE Be: lapsed

Owner name: ZUNDEL DANIEL

Effective date: 19900228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19900901

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19930428

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE GB IT LI LU NL SE

EUG Se: european patent has lapsed

Ref document number: 84440006.9

Effective date: 19901107

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020321

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030902