EP0068529A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0068529A1
EP0068529A1 EP82200639A EP82200639A EP0068529A1 EP 0068529 A1 EP0068529 A1 EP 0068529A1 EP 82200639 A EP82200639 A EP 82200639A EP 82200639 A EP82200639 A EP 82200639A EP 0068529 A1 EP0068529 A1 EP 0068529A1
Authority
EP
European Patent Office
Prior art keywords
conduits
liquid
series
heat exchange
heat exchanger
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.)
Withdrawn
Application number
EP82200639A
Other languages
German (de)
English (en)
Inventor
Leendert Taal
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of EP0068529A1 publication Critical patent/EP0068529A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0282—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet

Definitions

  • the invention relates to a heat exchanger provided with a series of heat exchange tubes, wherein the one medium flows around the tubes and the other, heat exchanging, medium is passed through the tubes.
  • Heat exchangers of the above, so-called closed, type are widely used in the industry, for example in the oil processing industry for cooling products from hydrocracking installations.
  • the present invention relates more in particular to a heat exchanger of the above type which is suitable for the application of gas/liquid mixtures as heat exchanging media.
  • the problems occurring at maldistribution of a gas/liquid mixture over the heat exchange tubes of a heat exchanger may also originate from the composition of the gas in the mixture.
  • the corrosive matter may come free upon lowering of the temperature of the gas. This for example occurs upon cooling down gaseous reactor effluents containing corrosive ammonium salts. To absorb such corrosive matter, liquid is supplied to the gas prior to cooling down.
  • gas/liquid mixtures applied as heat exchanging media should be distributed as uniformly as possible over the heat exchange tubes, to avoid deterioration of these tubes.
  • the object of the present invention is to improve the known heat exchanger provided with a series of heat exchange tubes in such a manner that when a gas/liquid mixture is supplied for passing through the heat exchange tubes the mixture is uniformly distributed over the heat exchange tubes.
  • a heat exchanger in the embodiment of the invention shown in Figures 1 and 2, comprises an elongated, horizontally extending vessel 2, for the supply of fluid to a series of heat exchange tubes 3 arranged along the length of the vessel 2.
  • Fluid passed through said heat exchange tubes 3 is collected in a not shown collecting vessel of the heat exchanger 1.
  • the elongated vessel 2 is provided with an inlet 4, for the supply of fluid into a separator chamber 5 formed by the vessel 2.
  • fluid supplied via the inlet 4 is distributed over the various heat exchange tubes 3 via a series of conduits 6, each conduit 6 forming a fluid communication between the separator chamber 5 and one heat exchange tube 3.
  • the conduits 6 passing through openings of the vessel 2 are secured to the vessel 2 and the heat exchange tubes 3 by means of welding.
  • the upper ends of the conduits 6 are arranged at a level above the bottom of the separator chamber 5, so that gutters 7 and 8 extending along the conduits 6 are formed for collecting liquid.
  • the walls of the conduits 6 are each provided with a number of slots 9 for discharging liquid from said gutters 7 and 8.
  • the lower ends of the slots 9 in the walls of the conduits 6 are arranged at substantially the same height.
  • a gas/liquid mixture to be cooled is supplied to the vessel 2 via the inlet 4.
  • the liquid from the gas/liquid mixture will collect in the gutters 7 and 8 and form a layer of liquid over the full length of the gutters 7 and 8.
  • the part of the heat exchanger shown in these Figures comprises an elongated vessel 10 enclosing a separator chamber 11.
  • a plurality of inlets 12 are provided for supplying a gas/liquid mixture into the separator chamber 11.
  • a series of heat exchange tubes 13 extends along the length of the vessel 10, said tubes being mounted in openings of a structure 14, for example a forced piece, forming the bottom part of the vessel 10.
  • removable plugs 15 are arranged in the forced piece 14 opposite of said tubes 13.
  • a series of conduits 16 are arranged along the length of the vessel 10,each conduit 16 forming a fluid communication between the separator chamber 11 and a heat exchange tube 13.
  • the separator chamber 11 is further provided with baffles 22 arranged in front of the inlets 12 for distributing the incoming fluid over the length of the separator chamber 11.
  • a gas/liquid mixture to be cooled is supplied into the separator chamber 11 via the inlets 12. Due to the presence of the baffles 22 the incoming fluid is distributed over the length of the separator chamber 11 and cannot pass directly into the conduits 16 arranged in front of the inlets 12. The liquid in the supplied mixture will settle down in the gutters 17 and 18 extending along the conduits 16, and is subsequently discharged from the separator chamber 11 via the liquid conduits 19 and 20, respectively. The gas from the supplied mixture leaves the separator chamber 11 via the conduits 16.
  • each conduit 16 In the enlarged part 21 of each conduit 16 the liquid from adjacent liquid conduits 19 and 20 is mixed with the gas stream passing through said conduit 16, so that a mixture of liquid and gas subsequently enters into the heat exchange tube 13 pertaining to said conduit 16. Since the conduits 16 are interconnected via their enlarged parts 21, the gas/liquid mixtures in the conduits 16 can be redistributed over the length of the vessel 10 prior to entering into the heat exchange tubes 13. When the entrance of a heat exchange tube 13 pertaining to a conduit 16 is clogged due to for example contaminations in the gas/liquid mixture, the mixture from said conduit 16 will flow via the interconnected enlarged parts 21 to heat exchange tubes 13 which are not clogged.
  • the enlarged parts 21 of the conduits 16 should have such a small cross-sectional area that settlement of liquid in the bottom parts of these enlarged parts 21 is prevented.
  • the heat exchanger partly shown in these Figures comprises a series of heat exchange tubes 30, mounted in openings of the bottom part 31 of an elongated vessel 32.
  • the interior of said vessel 32 comprises a separator chamber 33, provided with a plurality of inlets 34 for the supply of fluid into said separator chamber 33.
  • the separator chamber 33 is in fluid communication with the interiors of the heat exchange tubes 30 via a series of conduits 35.
  • each conduit 35 is provided with a removable plug 36, arranged opposite to an adjoining heat exchange tube 30.
  • the bottom of the separator chamber 33 is provided with a lowered part forming a gutter 37 extending over the length of the vessel 32 along the series of heat exchange tubes 30. Liquid collected in the gutter 37 is supplied into the interiors of the conduits 35 via a series of liquid conduits 38.
  • the separator chamber 33 is further provided with baffles 39 for distributing supplied fluid over the length of the separator chamber 33, each baffle 39 being arranged in front of an inlet 34.
  • the gas from a gas/liquid mixture supplied via the inlets 34 into the separator chamber 33 will directly flow via the conduits 35 into the heat exchange tubes 30.
  • the liquid in the gas/liquid mixture will be first collected in the gutter 37 and subsequently discharged from the separator chamber 33 via the liquid conduits 38.
  • the liquid from a liquid conduit 38 pertaining to said conduit 35 is remixed with the gas flowing through said conduit 35, prior to entering into the adjoining heat exchange tube 30.
  • the invention is not restricted to the application of gutters for collecting liquid of the types as shown in the drawings, provided that the gutter(s) extend(s) along the conduits 6, 16, 35 forming the main fluid communication between the separator chamber of the heat exchanger and the heat exchange tubes.
  • the separator chamber can have any other cross-sectional shape, such as a hexagonal shape, without departing from the invention.
  • heat exchangers comprising parallel heat exchange tubes cooperating with elongated separator chambers
  • the heat exchange tubes may for example be arranged according to the radii of a circle, thereby communicating with a circular or annular separator chamber.
  • the gutter(s) for collecting liquid will have an annular shape.
  • the walls of the conduits 6 can be provided with any other type of openings provided that these openings are arranged at a level above the lower ends of the gutters.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP82200639A 1981-06-22 1982-05-25 Echangeur de chaleur Withdrawn EP0068529A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8119137 1981-06-22
GB08119137A GB2100851A (en) 1981-06-22 1981-06-22 Heat exchanger

Publications (1)

Publication Number Publication Date
EP0068529A1 true EP0068529A1 (fr) 1983-01-05

Family

ID=10522708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200639A Withdrawn EP0068529A1 (fr) 1981-06-22 1982-05-25 Echangeur de chaleur

Country Status (5)

Country Link
EP (1) EP0068529A1 (fr)
JP (1) JPS588998A (fr)
AU (1) AU8505982A (fr)
ES (1) ES513295A0 (fr)
GB (1) GB2100851A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141029A2 (fr) * 1983-09-22 1985-05-15 GebràœDer Sulzer Aktiengesellschaft Réservoir de répartition de phases
GB2366363A (en) * 2000-08-31 2002-03-06 Llanelli Radiators Ltd A heat exchanger and tank unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307038A (en) * 1989-03-28 1994-04-26 Ogura Clutch Co., Ltd. Electromagnetic coupling apparatus
JP5600034B2 (ja) 2009-08-28 2014-10-01 小倉クラッチ株式会社 電磁連結装置
JP2019207033A (ja) * 2016-09-28 2019-12-05 東芝キヤリア株式会社 熱交換器および冷凍サイクル装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20964E (en) * 1939-01-03 Distributor head
US2193696A (en) * 1937-08-23 1940-03-12 Young Radiator Co Distributor head for evaporators
US2196858A (en) * 1938-12-03 1940-04-09 Chrysler Corp Distributor head
US2220595A (en) * 1938-11-17 1940-11-05 Young Radiator Co Distributor head for evaporators
CH402026A (de) * 1963-06-19 1965-11-15 Kuehni Apparatebau Ag Einrichtung zur gleichmässigen Verteilung einer Flüssigkeit in mehrere Rohre
GB1163288A (en) * 1966-11-10 1969-09-04 Zeitz Hydrierwerk Liquid Distribution Device for Heat Exchangers
FR2317534A1 (fr) * 1975-07-11 1977-02-04 Atlantic Richfield Co Procede et appareil pour partager un fluide en au moins deux courants separes
DE2642683A1 (de) * 1975-09-26 1977-03-31 Snam Progetti Fluessigkeitsverteiler fuer rohrbuendeltauscher
GB2000688A (en) * 1977-07-11 1979-01-17 Schmitz Kuehler Baierbrunn Apparatus for dividing a flowing mixture of a liquid and gas into a plurality of sub-flows

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20964E (en) * 1939-01-03 Distributor head
US2193696A (en) * 1937-08-23 1940-03-12 Young Radiator Co Distributor head for evaporators
US2220595A (en) * 1938-11-17 1940-11-05 Young Radiator Co Distributor head for evaporators
US2196858A (en) * 1938-12-03 1940-04-09 Chrysler Corp Distributor head
CH402026A (de) * 1963-06-19 1965-11-15 Kuehni Apparatebau Ag Einrichtung zur gleichmässigen Verteilung einer Flüssigkeit in mehrere Rohre
GB1163288A (en) * 1966-11-10 1969-09-04 Zeitz Hydrierwerk Liquid Distribution Device for Heat Exchangers
FR2317534A1 (fr) * 1975-07-11 1977-02-04 Atlantic Richfield Co Procede et appareil pour partager un fluide en au moins deux courants separes
DE2642683A1 (de) * 1975-09-26 1977-03-31 Snam Progetti Fluessigkeitsverteiler fuer rohrbuendeltauscher
GB2000688A (en) * 1977-07-11 1979-01-17 Schmitz Kuehler Baierbrunn Apparatus for dividing a flowing mixture of a liquid and gas into a plurality of sub-flows

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141029A2 (fr) * 1983-09-22 1985-05-15 GebràœDer Sulzer Aktiengesellschaft Réservoir de répartition de phases
EP0141029A3 (en) * 1983-09-22 1986-01-02 Gebruder Sulzer Aktiengesellschaft Phase distribution container
GB2366363A (en) * 2000-08-31 2002-03-06 Llanelli Radiators Ltd A heat exchanger and tank unit
GB2366363B (en) * 2000-08-31 2005-03-30 Llanelli Radiators Ltd A heat exchanger header and tank unit

Also Published As

Publication number Publication date
GB2100851A (en) 1983-01-06
JPS588998A (ja) 1983-01-19
AU8505982A (en) 1983-01-06
ES8308049A1 (es) 1983-07-01
ES513295A0 (es) 1983-07-01

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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

17P Request for examination filed

Effective date: 19820525

AK Designated contracting states

Designated state(s): DE FR IT NL

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

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18W Application withdrawn

Withdrawal date: 19840604

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TAAL, LEENDERT