EP1793193A2 - Échangeur de chaleur à plaques - Google Patents

Échangeur de chaleur à plaques Download PDF

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Publication number
EP1793193A2
EP1793193A2 EP06023933A EP06023933A EP1793193A2 EP 1793193 A2 EP1793193 A2 EP 1793193A2 EP 06023933 A EP06023933 A EP 06023933A EP 06023933 A EP06023933 A EP 06023933A EP 1793193 A2 EP1793193 A2 EP 1793193A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
header
exchanger block
block
plate heat
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Withdrawn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
EP06023933A
Other languages
German (de)
English (en)
Other versions
EP1793193A3 (fr
Inventor
Herbert Aigner
Gabriele Dr. Engl
Thomas Hecht
Stefan Möller
Wolfgang Süssmann
Alfred Dr. Wanner
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 EP05026404A external-priority patent/EP1793192A1/fr
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to EP06023933A priority Critical patent/EP1793193A3/fr
Publication of EP1793193A2 publication Critical patent/EP1793193A2/fr
Publication of EP1793193A3 publication Critical patent/EP1793193A3/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Withdrawn legal-status Critical Current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
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • 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

Definitions

  • the invention relates to a plate heat exchanger according to the preamble of patent claim 1.
  • the heat exchanger block of a plate heat exchanger consists of several layers of heat exchange passages, which are each delimited by separating plates against each other. End strips and cover plates form the outer frame of the heat exchanger block. Within a layer, further separating strips can be provided which separate heat exchange passages for different material flows from one another.
  • headers are welded over the inlet and outlet openings of the heat exchange passages, which are provided with a fluid connection.
  • headers are usually used semi-cylindrical shells, but may also have other shapes.
  • the walls of the header usually form an outside angle of 90 ° with the corresponding side of the block (see for example " The Standards of the Brazed Aluminum Plate-Fin Heat Exchanger Manufacturers' Association, ALPEMA, Second Edition, 2000, Figure 1-5 ).
  • a "fluid port” serves to supply or discharge fluid into or out of the header.
  • a pipe socket which are arranged in the half-cylinder jacket of the header opposite the inlet and outlet openings; At these pipe sockets, the pipes for the incoming and outgoing fluid flows are connected.
  • plate heat exchangers can be used for the simultaneous heat exchange of many fluid streams.
  • appropriate headers are then to be attached above the respective inlet and outlet openings of the heat exchange passages and provided with pipelines (see, for example, "US Pat. The Standards of the Brazed Aluminum Plate-Fin Heat Exchanger Manufacturers' Association, ALPEMA, Second Edition, 2000, Figure 1-1 ).
  • side of a heat exchanger block is to be understood geometrically, that is, it is a flat surface of the heat exchanger block, which is generally cuboid-shaped; the "page” therefore generally has a rectangular shape.
  • the invention has for its object to improve the flow characteristics within the header.
  • the header is formed so that the cylinder axis extends within the cylinder segment.
  • the cross section of the header is therefore formed by more than one semicircle. Its opening angle on the side of the heat exchanger is less than 180 °.
  • the cylinder jacket segment-shaped wall of the header with the side of the heat exchanger block forms an outer angle which is smaller than 90 °.
  • “Outside angle” is understood to mean the angle outside the header. In the event that the relevant wall portion of the header is accurately connected to the edge of the block, this outer angle is formed by the angle of the wall with the imaginary continuation of the block side beyond this edge.
  • the non-perpendicular connection of the header wall to the block side causes the flow area in the header to be increased without causing its the base plate facing the heat exchanger block must be increased.
  • an improved flow characteristic is achieved inside the header, which in turn causes a reduced pressure loss and a more uniform distribution of the fluid to the passages.
  • more than half of a cylinder jacket is used as a header instead of a half cylinder. If you move the cylinder axis of the header from the side of the heat exchanger with a constant diameter by about 10% of the cylinder diameter, the pressure loss can be reduced by about 35%.
  • This advantage is achieved even with the same nominal size of the header (ie the same connection dimensions and the same wall thickness) and even reduced footprint.
  • this eccentricity can be varied continuously.
  • the flow cross-section of the header can thus specifically adapted to the particular application and in particular a misallocation can be efficiently avoided.
  • the invention can also be applied to other types of headers, for example those with an oval, asymmetrical and / or angular cross-section.
  • the outer angle between the cylinder jacket segment-shaped wall of the header and the side of the heat exchanger block is 87 ° or less, in particular 81 ° or less, in particular 75 ° or less, and is at least equal to 40 °, in particular at least equal to 55 °, in particular at least equal to 65 °.
  • the cylinder jacket segment-shaped wall (7) of the header (2) and / or the heat exchanger block are made of aluminum. It is therefore an aluminum plate heat exchanger, such as in " The Standards of the Brazed Aluminum Plate-Fin Heat Exchanger Manufacturers' Association, ALPEMA, Second Edition, 2000 is basically described. In this case, it is favorable if the cylinder-jacket-segment-shaped wall (7) of the header (2) and the heat exchanger block are non-positively connected with one another, for example by means of a soldered or welded connection.
  • the cuboid heat exchanger block 1 the inventively designed header 2
  • the fluid port 3 the fluid port 3
  • the illustrated header can serve as an inlet or outlet for a fluid.
  • the plate heat exchanger according to the invention further headers. These may be conventional or just like the header shown. Any mixture between inventive and conventional headers is possible within the scope of the invention.
  • the header 2 is arranged on the side 5 of the block 1 and formed in the form of a cylinder segment with an opening angle 6 of more than 180 °, for example about 200 °.
  • the header 2 is bounded by a cylinder jacket segment-shaped wall 7 and by a flat surface 12. The latter runs on the side 5 of the heat exchanger block 1.
  • the cylinder jacket segment-shaped wall 7 of the header 2 forms with the side 5 an outer angle 8. (In order to make the outer angle visible, a tangent surface 9 of the header wall 7 is shown in FIG.
  • the two embodiments differ by the orientation of the fluid port 3.
  • the fluid port 3 is oriented perpendicular to the side 5 of the block 1.
  • the fluid thus flows through the pipeline 4 parallel to the side 5 or from.
  • a baffle 10 as in the older German patent application 102005055676.0 (internal file number of the applicant: P05271-DE / AVA, filing date: 22.11.2005) and the corresponding applications.
  • the guide plate is not arranged in the present case on the cylinder axis of the pipeline, but at a distance 11 to this.
  • the pipeline 4 has a cylindrical shape and continues to the left (not shown in FIG. 1).
  • the header 2 extends over the entire side 5 of the heat exchanger block.
  • the two axial edges of the cylindrical wall of the header in this case run along two edges of the heat exchanger block.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP06023933A 2005-12-02 2006-11-17 Échangeur de chaleur à plaques Withdrawn EP1793193A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06023933A EP1793193A3 (fr) 2005-12-02 2006-11-17 Échangeur de chaleur à plaques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05026404A EP1793192A1 (fr) 2005-12-02 2005-12-02 Échangeur de chaleur à plaques
EP06023933A EP1793193A3 (fr) 2005-12-02 2006-11-17 Échangeur de chaleur à plaques

Publications (2)

Publication Number Publication Date
EP1793193A2 true EP1793193A2 (fr) 2007-06-06
EP1793193A3 EP1793193A3 (fr) 2007-06-13

Family

ID=38017019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06023933A Withdrawn EP1793193A3 (fr) 2005-12-02 2006-11-17 Échangeur de chaleur à plaques

Country Status (1)

Country Link
EP (1) EP1793193A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016062396A1 (fr) * 2014-10-23 2016-04-28 Linde Aktiengesellschaft Procédé de fabrication d'un échangeur de chaleur à plaques par deux passes de soudage, et échangeur de chaleur à plaques correspondant

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2267905A (en) * 1939-12-04 1941-12-30 Frantz Peter Heating apparatus
US2875986A (en) * 1957-04-12 1959-03-03 Ferrotherm Company Heat exchanger
US3216495A (en) * 1963-08-07 1965-11-09 Gen Motors Corp Stacked plate regenerators
GB1205933A (en) * 1967-01-25 1970-09-23 Clarke Chapman Ltd Improvements in or relating to plate heat exchangers
US4310960A (en) * 1973-04-16 1982-01-19 The Garrett Corporation Method of fabrication of a formed plate, counterflow fluid heat exchanger and apparatus thereof
US3852166A (en) * 1973-07-20 1974-12-03 Johnson & Co Inc A Process for separating hydrocarbon materials
US6860011B2 (en) * 2002-03-28 2005-03-01 Solar Turbines Inc. Method for attaching an air duct to a recuperator core
US7100280B2 (en) * 2003-02-25 2006-09-05 Linde Aktiengesellschaft Method for producing a heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016062396A1 (fr) * 2014-10-23 2016-04-28 Linde Aktiengesellschaft Procédé de fabrication d'un échangeur de chaleur à plaques par deux passes de soudage, et échangeur de chaleur à plaques correspondant
US10378832B2 (en) 2014-10-23 2019-08-13 Linde Aktiengesellschaft Method for producing a plate heat exchanger using two welds, and a corresponding plate heat exchanger

Also Published As

Publication number Publication date
EP1793193A3 (fr) 2007-06-13

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