EP0794402A2 - Dispositif échangeur de chaleur - Google Patents

Dispositif échangeur de chaleur Download PDF

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Publication number
EP0794402A2
EP0794402A2 EP97103624A EP97103624A EP0794402A2 EP 0794402 A2 EP0794402 A2 EP 0794402A2 EP 97103624 A EP97103624 A EP 97103624A EP 97103624 A EP97103624 A EP 97103624A EP 0794402 A2 EP0794402 A2 EP 0794402A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger device
frame tube
tube
flange ring
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Withdrawn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
EP97103624A
Other languages
German (de)
English (en)
Other versions
EP0794402A3 (fr
Inventor
Josef Finnah
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.)
LEIFELD UND LEMKE, PROZESSTECHNIK GMBH & CO. KG
Original Assignee
PVT Prozess-u Verpackungstechnik 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
Application filed by PVT Prozess-u Verpackungstechnik GmbH filed Critical PVT Prozess-u Verpackungstechnik GmbH
Publication of EP0794402A2 publication Critical patent/EP0794402A2/fr
Publication of EP0794402A3 publication Critical patent/EP0794402A3/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Withdrawn legal-status Critical Current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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • the invention relates to a heat exchanger device consisting of a hollow body bundle guided through a jacket body for separate guidance of media in the jacket body on the one hand and the hollow body bundle on the other hand, at least two hollow body bundles being fluidically connectable to one another by a connecting body.
  • a jacket body is understood to mean a hollow body provided with an inlet and outlet opening.
  • a bundle of hollow bodies is understood to mean a multiplicity of hollow bodies, each provided with an inlet and outlet opening, which together hold or guide a medium.
  • the individual hollow bodies combined to form a bundle of hollow bodies can have different shapes and can be arranged with respect to one another.
  • a connecting body is understood to mean a further hollow body which enables at least two bundles of hollow bodies to be connected to one another in such a way that a medium guided in a bundle of hollow bodies is guided through the connecting body into at least one further bundle of hollow bodies.
  • Heat exchanger devices for transferring heat between media carried in separate line systems in the direction of a temperature gradient are known.
  • the various hollow bodies of such line systems are essentially tubular.
  • the largest possible exchange surfaces between the individual pipe systems are sought.
  • Heat exchanger devices in which different media are guided separately from one another in an enveloping body and a plurality of tube bundles, are known.
  • the tube bundles are connected to one another in a serpentine manner, for example at their ends, with so-called deflection bends, so as to meet the demand for increasing the heat transfer capacity by increasing the exchange surface with almost the same enclosed space.
  • the tubes which are thin in relation to the flanges, are overheated and the flange material is not heated sufficiently.
  • the flanges are used to connect different pipes or hollow bodies, each provided with a flange, for example with a Screw connection, connected.
  • the number of screws connecting the flange plate should be as large as possible for safety reasons. Since the individual screws have to be completely unscrewed during repair, maintenance or cleaning work, the screwing times caused by the individual screws add up, particularly in the case of larger heat exchanger devices. In addition to maintenance and repair costs, this results in additional costs due to extended downtimes of the heat exchanger device. In addition, loose parts, such as screws forgotten during cleaning, can get into the heat exchanger device and cause damage during operation.
  • brackets or bearings are required for the construction of heat exchanger devices. Due to the possibly very complex structure of heat exchanger devices and the forces that arise, for example weight forces, correspondingly complex and dimensioned brackets or bearings are required. For the various brackets and bearings, a large number of special components have to be made, which increase the assembly effort, for example for repair, maintenance or cleaning work. In addition, the expansion or use of heat exchanger devices is limited due to the large number of special components required. For example, for the fluidic connection, several heat exchanger devices have to be connected to the individual jacket bodies with special connecting bodies. A simple and quick expansion is not possible, as is the change in the fluidic connection of the various heat exchanger devices, for example a change in the flow path of the medium carried in the jacket bodies.
  • the object of the present invention is therefore to provide a heat exchanger device which is extremely simple to construct with a limited number of essentially standardized components and which is extremely flexible with regard to expansion and use options.
  • a heat exchange device consisting of a guided through a jacket body hollow body bundle for the separate control of the media in the casing body on the one hand and the hollow body bundle on the other hand, at least two hollow bodies bundles are connectable by a connection body fluidly with one another, characterized by a frame tube, which in its lateral surface has at least one receiving area for fluidic connection with the jacket body and at least one receiving area for the bundle of hollow bodies, which can be passed through the frame tube in a fluidically sealed manner from the medium guided in the jacket body and frame tube.
  • the frame tube is a tube.
  • the frame tube is also a hollow body of any shape, which has different receiving areas for jacket bodies or hollow body bundles.
  • the frame tube forms a holder or a bearing for at least one jacket body or at least one bundle of hollow bodies.
  • the medium guided in the bundle of hollow bodies and the medium guided in the jacket body remain separate from one another.
  • the medium guided in the jacket body is guided through the frame tube, so that there is a fluidic connection between them.
  • the jacket body is a tube (jacket tube).
  • the hollow bodies of the bundle of hollow bodies are tubes.
  • the receiving areas of a jacket body or a bundle of hollow bodies are advantageously arranged on opposite sides of the frame tube.
  • the frame tube serving as a holder for a plurality of jacket bodies or cladding tubes and hollow body bundles or tube bundles.
  • several can be used in parallel arranged cladding tubes with internally also parallel tube bundles are connected at their ends to, for example, a vertically extending frame tube.
  • the frame tube, the casing tubes or the jacket body and the tube bundle or the hollow body bundle advantageously have approximately the same material thickness, so that the individual tubes have approximately the same heat absorption.
  • this creates the possibility of an optimal welded connection, since the respective pipes to be connected have approximately the same temperature and, on the other hand, any tension that occurs during operation and the associated cracks caused by the connection pieces are eliminated due to different material expansions due to different temperatures.
  • the material thicknesses of the various pipes or elements to be connected can be in almost any ratio to one another.
  • the ratios of the material thicknesses are advantageously designed such that there is a ratio of the material thickness of, for example, tube bundle Hül casing tube Hül frame tube. It is essential that there are no strains and associated damage in the area of the connections due to different heat absorption or the associated material expansions. This can also be achieved by using different materials for the different pipes.
  • a pipe with a substantially smaller material thickness can be connected to a pipe with a significantly larger material thickness, with a tension in the area of the connection being excluded due to the different thermal conductivity properties of the respective materials of the pipes.
  • the frame tube is a square tube. This makes it particularly easy to receive, for example, a cladding tube or a tube bundle, as well as attaching various connection or connecting elements, since a flat, flat attachment surface is provided for appropriate attachment.
  • a square tube for a frame tube several heat exchanger devices can be stacked extremely easily without additional brackets or bearings.
  • various prefabricated exchanger modules can be stored in an extremely space-saving manner and, moreover, allow the heat exchanger device to be easily expanded in accordance with the requirements.
  • defective modules can be removed from an existing heat exchanger device relatively easily, for example by pulling them out.
  • the frame tube advantageously serves as a holder or stand, so that additional special components for building a heat exchanger device can be dispensed with.
  • Individual defective or maintenance-requiring exchanger elements can be exchanged very simply and quickly, since this modular structure means that fewer individual parts are available and fewer connections have to be disconnected accordingly.
  • the frame tube has at least one connection element on the outside in the region of the receptacle of a bundle of hollow bodies, which can be used, for example, to connect two bundles of hollow bodies via so-called deflection bends.
  • the connection element has an area for receiving a flange, for example attached to a deflection bend, which is screwed or welded to the frame tube, for example.
  • the connection element consists of at least one flange ring that can be attached to the outside of the frame tube.
  • the flange ring which can for example be welded to one side of the frame tube, has a material gradation.
  • This can be formed, for example, by a step-like or trapezoidal material removal on the outside of the flange ring.
  • This material gradation is advantageously designed so that the flange ring in the area of Connection point on the frame tube has approximately the same material thickness. This in turn creates the possibility of an optimal welded connection and an almost identical expansion behavior during the operation of the heat exchanger device, which is at least within predetermined tolerances.
  • a corresponding flange ring is fastened, for example, to one end of a deflection bend to be connected, or is formed thereon.
  • the flange ring of the connecting element on the frame tube and the flange ring of the deflection bend can be connected to one another, for example screwed.
  • connection element is equipped with a sleeve-like counter ring which, for example, surrounds two flange rings to be connected and centers or aligns the flange rings for connection to one another.
  • the mating ring of the connection element can be pushed, for example, over a flange ring, so that the connection element can be designed in several parts.
  • manufacture the sleeve-like counter ring from two further flange rings, which are designed to be exactly negative to the flange rings attached or formed on the frame tube or deflection bend.
  • the two flange rings forming the sleeve-like counter ring can be detachably connected to one another, for example by a screw connection.
  • connection element for example a flange ring that can be fastened to the frame tube
  • connection element has at least one flattened portion on its outer contour.
  • a sleeve-like mating ring which also belongs to the connecting element, has at least one correspondingly corresponding flattening on the inside, so that, in the case of a multi-part connecting element, it can only be pushed in a certain position over the part of the connecting element fastened to the frame tube, for example a flange ring.
  • the sleeve-like counter ring can be rotated about its longitudinal central axis with respect to the flange ring.
  • a clamp connection is advantageously provided, by means of which a connecting pipe, for example a deflection bend, is held and easily pressed against the flange ring.
  • a connecting pipe for example a deflection bend
  • the rotating movement can center or support the pipes to be connected or the flange rings.
  • a releasable connection for example a screw connection, can be used to provide a firm and sealed connection between the connecting pipe and the flange ring.
  • the connecting pipe is pressed firmly against the flange ring.
  • screw connections for loosening for example, a deflection bend only have to be loosened slightly in order then to release the deflection bend by an opposite rotational movement.
  • This provides a type of quick-action fastener that simplifies and speeds up assembly and disassembly of deflection bends, for example.
  • there are no loose parts such as screws and washers etc. in the assembly space, which can possibly cause damage if they get into the heat exchanger device.
  • a connecting piece arranged at one end of the frame tube enables the connection of, for example, two frame tubes, so that the heat exchanger device can be expanded in a modular manner in accordance with the requirements.
  • additional devices for special functions relating to the treatment of the medium guided in the jacket body and in the frame tube can be connected by the connecting piece arranged at one end of the frame tube.
  • a further heat exchanger device or a device for filling, emptying or exchanging the medium guided in the jacket body and frame tube can be connected to such a connecting element.
  • the frame tube advantageously has at least one deflection element arranged inside.
  • a deflection element arranged in the interior of the frame tube provides targeted guidance of the medium guided in the jacket body and frame tube, and there is the possibility of influencing the flow paths and the flow velocity of the medium.
  • the deflection element is a wall which can be fastened in the frame tube at any angle. This makes it possible, depending on the inclination of the wall, to specifically direct or even block the flow of medium through the frame tube through the frame tube (partition wall).
  • the wall of a deflection element has at least one hole. By varying this hole in terms of shape and position, different flow velocities or flow paths can be set in a targeted manner.
  • FIG. 1 shows a section of a heat exchanger device according to the invention, consisting of a plurality of jacket tubes 3 with tube bundles 2 carried out in parallel, each of which is received on opposite sides by a frame tube 1 running perpendicular to the jacket tubes or tube bundles.
  • the frame tube 1, the casing tubes 3 and the respective tube bundles 2 have approximately the same wall thicknesses 4, 5 and 6 as shown in FIG. 1.
  • So-called deflection or baffle plates 7 are introduced within the frame tube 1, which specifically influence the flow path and sometimes the flow velocity of one in the frame tube 1 and the casing tubes Take 3 guided medium 20 side of the jacket space.
  • deflection bends 8 two tube bundles 2 arranged parallel to each other are connected to each other, so that a tube-side medium 21 guided in the tube bundles 2 can flow through several tube bundles 2.
  • different flow paths are obtained and, for example, when the cross sections of the deflection bends 8 used are varied, different flow velocities are obtained.
  • a flange ring 9 is attached to the frame tube 1 in the region of the reception of a tube bundle 2 for connecting a deflection bend 8.
  • This has a wall thickness 22 in the area of the connection point, which corresponds approximately to the wall thickness 4 of the frame tube 1.
  • optimal welded connections can thereby be achieved and tensions due to an uneven temperature distribution, for example during operation, which reduce the operational safety of the heat exchanger device can be avoided.
  • the flange ring 9 also has material gradations which prevent unnecessary heat absorption and any tension that may be caused thereby.
  • the deflection bends 8 each have a corresponding flange ring 11 at their ends.
  • the flange rings 9 and 11 each lie in so-called counter rings 10 and 12, which each have recesses corresponding to the outer contours of the flange rings 9 and 11.
  • the counter rings 10 and 12 have flats 18 on four sides, which correspond to the flats 17 on the flange rings 9 and 11.
  • the counter rings 10 and 12 are each connected to one another with four stud bolts 14 and corresponding washers 16 and nuts 15, so that the counter rings 10 and 12 together form a sleeve which receives the flange rings.
  • the counter rings can be pushed over the flange rings due to the recesses corresponding to the outer contours of the flange rings.
  • the flange rings 9 and 11 to be connected are centered and aligned with one another.
  • the flange rings are pressed lightly against one another by the mating rings in a manner similar to a clamping connection, in order to obtain the hold required for the attachment of a deflection bend 8.
  • a seal 13 is clamped between the flange rings.
  • the nuts 15 are then tightened and the flange rings are pressed firmly against one another. Since the flange rings are already pressed lightly against each other by the twisting movement, only short screwing distances have to be overcome for a firm and tight connection. This means that only short screwing times are required to fasten a deflection bend 8, which enable the deflection bends 8 to be assembled and disassembled quickly.
  • the connecting piece 19 shown in FIG. 1 has three bores made at a 90 ° angle, for example in order to guide the medium 20 on the jacket space side from these bores into a coupling piece in order to then feed it again to the next exchanger via this bore.
  • the medium 20 on the jacket space side can also be led out in order to subject it to an increase in temperature, for example, and only then to feed it back to the next exchanger.
  • the longitudinal central axis of the screws 14, together with nuts 15 and washers 16, runs perpendicular to the longitudinal central axis of the frame tube 1 and parallel to the longitudinal central axes of the casing tubes 3 or tube bundle 2.
  • the screws 14 be attached so that their longitudinal central axes are at an angle to the longitudinal central axis of the frame tube 1 or to the longitudinal central axes of the casing tubes 3 or tube bundle 2 that is less than 90 °.
  • the screws 14 or the nuts 15, in particular those located under the deflection bends 8 can be tightened or tightened particularly well.
  • the screws 14 can be attached or fastened, for example, in or on the counter rings 10 and 12 in such a way that their longitudinal central axes each make an angle of 45 ° to the longitudinal central axis of the frame tube 1 or to the longitudinal central axes of the casing tubes 3 or tube bundle 2 .
  • This offset arrangement of the screws 14 allows them to be tightened particularly well and easily, in particular under the deflection bends 8.
  • the offset screws 14 and / or their fastening in the area of the clamping connection reliably absorb transverse forces that could cause the clamping connection to be released unintentionally.
  • the frame tube 1 according to the invention creates the possibility of constructing extremely compact and, moreover, easy to manufacture heat exchanger devices from standardized components, in the simplest case from different tubes.
  • various exchanger modules can be prepared, which offer the possibility of constructing a heat exchanger device similar to a modular system and adapting it to existing rooms.

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  • 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)
EP97103624A 1996-03-05 1997-03-05 Dispositif échangeur de chaleur Withdrawn EP0794402A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19608400 1996-03-05
DE1996108400 DE19608400A1 (de) 1996-03-05 1996-03-05 Wärmetauschervorrichtung

Publications (2)

Publication Number Publication Date
EP0794402A2 true EP0794402A2 (fr) 1997-09-10
EP0794402A3 EP0794402A3 (fr) 1999-01-13

Family

ID=7787236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97103624A Withdrawn EP0794402A3 (fr) 1996-03-05 1997-03-05 Dispositif échangeur de chaleur

Country Status (2)

Country Link
EP (1) EP0794402A3 (fr)
DE (1) DE19608400A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020969A1 (fr) * 1997-10-23 1999-04-29 Tetra Laval Holdings & Finance S.A. Tube coude destine a recevoir un produit et conçu pour des echangeurs de chaleur
DE10343415A1 (de) * 2003-09-19 2005-05-12 Innex Waermetechnik Gmbh Mehrphasenmedium-Wärmetauscher und Verfahren zur Hygienisierung fließfähiger Biomasse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191222869A (en) * 1912-10-07 1913-04-10 Koppers Gmbh Heinrich Improvements in Cooling Apparatus.
GB200637A (en) * 1922-05-10 1923-07-19 Thomas Piggott And Company Ltd Improvements in and relating to heat exchangers, coolers, and the like
US2041328A (en) * 1935-08-12 1936-05-19 Alco Products Inc Heat exchanger
GB606362A (en) * 1945-01-13 1948-08-12 Brown Fintube Co Tubular connection for inner and outer concentric tubes
US3377087A (en) * 1965-05-05 1968-04-09 Brown Fintube Co Union for connecting conduits
JPS60103295A (ja) * 1983-11-10 1985-06-07 Fuji Electric Co Ltd 二重管式熱交換器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020969A1 (fr) * 1997-10-23 1999-04-29 Tetra Laval Holdings & Finance S.A. Tube coude destine a recevoir un produit et conçu pour des echangeurs de chaleur
DE10343415A1 (de) * 2003-09-19 2005-05-12 Innex Waermetechnik Gmbh Mehrphasenmedium-Wärmetauscher und Verfahren zur Hygienisierung fließfähiger Biomasse
DE10343415B4 (de) * 2003-09-19 2007-02-01 INNEX Wärmetauscher GmbH Mehrphasenmedium-Wärmetauscher und Verfahren zur Hygienisierung fließfähiger Biomasse

Also Published As

Publication number Publication date
EP0794402A3 (fr) 1999-01-13
DE19608400A1 (de) 1997-09-11

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