EP0230982B1 - Echangeur de chaleur cylindrique, fabriqué avec des éléments de construction préfabriqués, en particulier récupérateur sur cheminée - Google Patents

Echangeur de chaleur cylindrique, fabriqué avec des éléments de construction préfabriqués, en particulier récupérateur sur cheminée Download PDF

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Publication number
EP0230982B1
EP0230982B1 EP87100820A EP87100820A EP0230982B1 EP 0230982 B1 EP0230982 B1 EP 0230982B1 EP 87100820 A EP87100820 A EP 87100820A EP 87100820 A EP87100820 A EP 87100820A EP 0230982 B1 EP0230982 B1 EP 0230982B1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
inlet
outlet
annular flow
pockets
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
EP87100820A
Other languages
German (de)
English (en)
Other versions
EP0230982A3 (en
EP0230982A2 (fr
Inventor
Miklos Kühne
Mucsi Gyorgyi Tircs
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.)
Tuezelestechnikai Kutato Es Fejleszto Vallalat
Original Assignee
Tuezelestechnikai Kutato Es Fejleszto Vallalat
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 Tuezelestechnikai Kutato Es Fejleszto Vallalat filed Critical Tuezelestechnikai Kutato Es Fejleszto Vallalat
Priority to AT87100820T priority Critical patent/ATE49470T1/de
Publication of EP0230982A2 publication Critical patent/EP0230982A2/fr
Publication of EP0230982A3 publication Critical patent/EP0230982A3/de
Application granted granted Critical
Publication of EP0230982B1 publication Critical patent/EP0230982B1/fr
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
    • 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
    • F28D9/0012—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 the apparatus having an annular form
    • F28D9/0018—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 the apparatus having an annular form without any annular circulation of the heat exchange media
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction

Definitions

  • the invention relates to a cylindrical heat exchanger, which is made of prefabricated components, according to the introductory part of the claim.
  • the heat exchange pockets are formed by a star-shaped insert plate and flow axially through the heat transfer medium.
  • channels with a small cross-section which are closed on both sides are designed to convey the media from rectangular or wavy sheet metal. From the elements designed in this way, e.g. every second element is vertically oriented on the first or is built into it with an acute angle, the flow cross-section for one or the other medium being formed from the elements oriented in the same way.
  • the device specified in GB-A-2 048 452 consists of two large areas e.g. designed by pressing as the mirror image of each other into the appropriate format, e.g. welded together by thin-walled sheet metal halves.
  • the double-walled construction which has a flow cross-section between the two sheets for the medium participating in the heat exchange and is provided at one end with an inlet connection and at the other end with an outlet connection, is wound in the form of a spiral.
  • the construction thus constructed is closed at both ends in the plane of the spiral, in such a way that the center of the spiral is left free at one end, e.g.
  • the characteristics of the device described for the heat exchange are favorable for media in which the volume of the heat-emitting or heat-absorbing medium deviates greatly from one another; as such e.g. a gas-phase heat-emitting and a liquid heat-absorbing medium can be mentioned.
  • DE-A-2 921 770 specifies a heat exchanger element which is assembled from two mirror-image halves and is generally connected by welding.
  • the two halves form a lamellar construction consisting of metal and plastic, which, like the construction described above, can only be successfully used due to the ratio between the flow cross-sections if the ratio of the volumes of the media participating in the heat exchange largely meets the requirements.
  • the supply and discharge of the heat-emitting medium are specially designed.
  • the construction described can mainly be used as an element of municipal heating systems and only in a low temperature range. Incidentally, this fact indicates not only the formal design but also the synthetic covering of the enveloping shell.
  • channels with equivalent diameters that are favorable in terms of heat transfer can be designed.
  • the channels, through which the media participating in the heat exchange flow, are formed by the bundling of profiled elements that require high-precision machining.
  • the heat exchanger assembled from the elements specified in the description is only suitable for heat exchange between media in which the difference between the temperatures is small; The thermal stresses must under no circumstances lead to the deformation of the elements processed with the highest precision, and the resulting leakage must also be avoided.
  • the system cannot be used under the temperature conditions of the flue gas and the combustion air. Another disadvantage is that the problem of feeding or removing the media is not solved at all.
  • inlet and outlet openings arranged one above the other are provided, which open laterally into heat exchange pockets, which are each formed from two plates arranged parallel and spaced apart from one another.
  • US-A-3 064 947 describes a cylindrical heat exchanger in which curved finned tubes open into annular flow spaces.
  • the object of the invention was to favor the assembly of a heat exchanger of the known type by improving the design of the inlet and outlet openings.
  • the invention relates to a cylindrical heat exchanger assembled from prefabricated components, in particular to a chimney recuperator that can be assembled in any length, with a plurality of heat exchange pockets or hollow ribs arranged in a circle, which are arranged at a distance from one another in the axial plane in circumferential directions of the heat exchanger, with at least one outlet opening and at least one inlet opening are connected and are surrounded by a cylindrical outer jacket, a flow-preventing guide element being arranged in the dead space of the heat transfer determined by the inner ends of the heat exchange pockets.
  • the heat exchange pockets are each connected via a radial inlet channel and a radial outlet channel, which are arranged axially one above the other, to annular flow spaces which are formed between the outer jacket and an inner cylinder jacket surrounding the heat exchange bags and formed by mutual connection and by their connection with jacket plates, and from one another are separated by annular dividing walls, the inlet and outlet openings opening radially or axially into one of the flow spaces.
  • the heat exchange pockets 1 are arranged radially in a circle in one, two or more rows one above the other, the walls of which are pressed and which are expediently welded together from two halves which, according to FIG. 2, run parallel to one another at a short distance from one another, and which in ensure a flow through the interior of the interior corresponding to the dashed arrows in FIG. 1 in a U-shape in the vertical plane.
  • the heat exchange pockets 1 are arranged according to FIG. 2 in axial planes in the circumferential direction of the heat exchanger at a distance from one another, so that between them there are flow spaces for the heat-emitting medium flowing axially through the heat exchanger according to FIG. 1.
  • the heat exchange pockets 1 are each provided with an inlet channel 2 and an outlet channel 3, which expand in a funnel shape radially outwards and which have an elongated hexagonal profile, the greatest width of which is that of the heat exchange pockets 1 largely surpasses; the channels are designed so that the flowing medium is exposed to the lowest possible resistance.
  • the walls of the inlet channels 2 and outlet channels 3 are partially connected to one another, and in some cases they adjoin the jacket sheets 4, which creates an enveloping inner cylinder jacket 5, which in this way forms a cylindrical end surface in the direction of the center line of the heat exchanger unit.
  • the heat exchanger unit can also be designed such that the heat exchange pockets 1 are arranged only in a single row, as a result of which the enveloping cylinder jacket 5 is designed by connecting the walls of the inlet channels 2 and the outlet channels 3 to the jacket plates 4.
  • the “insert” designed in this way is enclosed with a cylindrical outer jacket 6, which is arranged radially at a distance from the inner cylinder jacket 5, after which ring-shaped partition walls 7, which lie in radial planes, are arranged between the inner cylinder jacket 5 and the cylindrical outer jacket 6, whereby annular flow spaces 8 arise.
  • a heat exchanger connected in parallel (FIG. 1) or a heat exchanger connected in series (FIG. 3) can be designed; With heat exchange pockets 1 arranged in more than two rows, a combined circuit can also be designed.
  • the useful, variable circuit options allow a wide range of applications.
  • the inlet openings 9 and the outlet openings 10 are arranged differently.
  • an inlet opening 9 and an outlet opening 10 are provided.
  • the radially inner ends of the heat exchange pockets 1 lie on a cylinder jacket and delimit a dead space 12 for the heat transfer.
  • a cylindrical or conical steering element which prevents the flow 13 is arranged in the dead space 12 of the heat transfer, or has a circular or cone-shaped steering element.
  • the inlet openings 9 and the outlet openings 10 can also have a different shape.
  • a heat exchanger in which the inlet opening 9 and the outlet opening 10 expediently along the entire circumference of the zy lindharilogical outer jacket 6 are designed ring-shaped, for example by perforating the cylindrical-Adrien outer jacket 6.
  • Fig. 6 shows a heat exchanger in which the outlet opening 10 is designed in the traditional circular shape, while the inlet opening 9 is formed on the «bottom part» of the heat exchanger in a ring shape around the same.
  • the successive installation of the heat exchangers in the chimney gives us a recuperator operating in countercurrent or cocurrent with appropriate heat utilization;
  • the construction can also form part of the chimney body.

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)
  • Air Supply (AREA)

Claims (1)

1. Un échangeur de chaleur cylindrique constitué d'éléments préfabriqués, notamment un récupérateur de cheminée pouvant être assemblé suivant une longueur quelconque comportant une pluralité de poches ou de tuyaux creux et de poches d'échange de chaleur disposés en cercle et disposés, dans le plan axial suivant la direction circulaire de l'échan- geurde chaleur, à un certain intervalle l'une de l'autre et raccordées avec au moins un orifice de sortie et au moins un orifice d'entrée et entouré d'une enveloppe extérieure cylindrique, un élément conducteur empêchant l'écoulement étant chaque fois disposé dans l'espacement d'échange de chaleur définie par les extrémités intérieures des poches d'échange de chaleur. Les poches d'échange de chaleur sont chaque fois disposées au-dessus d'un canal d'entrée et radial et d'un canal de sortie et radial disposés l'un au-dessus de l'autre sont raccordées par des espaces d'écoulement circulaires formées entre la paroi extérieure et une jaquette cylindrique intérieure formée par assemblage réciproque et par leur assemblage avec les tôles de la jaquette entourant les poches de l'echangeur de chaleur et se limitent de l'autre par des cloisons de séparation circulaires, les orifices d'entrée et de sortie débouchant radialement ou axialement dans l'un des espaces d'écoulement.
EP87100820A 1986-01-27 1987-01-21 Echangeur de chaleur cylindrique, fabriqué avec des éléments de construction préfabriqués, en particulier récupérateur sur cheminée Expired - Lifetime EP0230982B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100820T ATE49470T1 (de) 1986-01-27 1987-01-21 Zylindrischer, aus fertigbauteilen gefertigter waermetauscher, insbesondere schornsteinrekuperator.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU86371A HU195317B (en) 1986-01-27 1986-01-27 Round heat exchanger made of prefabricable members particularly chimney recuperator mountable into optional length
HU37186 1986-01-27

Publications (3)

Publication Number Publication Date
EP0230982A2 EP0230982A2 (fr) 1987-08-05
EP0230982A3 EP0230982A3 (en) 1987-11-11
EP0230982B1 true EP0230982B1 (fr) 1990-01-10

Family

ID=10949301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100820A Expired - Lifetime EP0230982B1 (fr) 1986-01-27 1987-01-21 Echangeur de chaleur cylindrique, fabriqué avec des éléments de construction préfabriqués, en particulier récupérateur sur cheminée

Country Status (4)

Country Link
EP (1) EP0230982B1 (fr)
AT (1) ATE49470T1 (fr)
DE (1) DE3761399D1 (fr)
HU (1) HU195317B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2168889A1 (es) * 1998-12-28 2002-06-16 Dominique Abellan Chimenea sin turbulencias en regimen laminar.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627265B1 (fr) * 1988-02-17 1990-04-27 Fradin Jean Echangeur thermique compact
FR2647198B1 (fr) * 1989-05-22 1991-07-19 Packinox Sa Echangeur thermique a conduits a plaques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1734962A (en) * 1924-03-11 1929-11-12 Lucille V Clarke Air heater
FR601276A (fr) * 1925-07-23 1926-02-26 Aviation Louis Breguet Sa Radiateur sans soudure
FR940764A (fr) * 1947-02-06 1948-12-22 échangeur de calories
US3064947A (en) * 1959-02-20 1962-11-20 United Aircraft Corp Involute flat tube and plate fin radiator
GB2025599A (en) * 1978-05-04 1980-01-23 Long P W Waste-heat recovery method and apparatus
EP0062518A3 (fr) * 1981-04-03 1983-04-06 John Howard Coope Echangeurs de chaleur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2168889A1 (es) * 1998-12-28 2002-06-16 Dominique Abellan Chimenea sin turbulencias en regimen laminar.

Also Published As

Publication number Publication date
HUT43718A (en) 1987-11-30
EP0230982A3 (en) 1987-11-11
DE3761399D1 (de) 1990-02-15
EP0230982A2 (fr) 1987-08-05
ATE49470T1 (de) 1990-01-15
HU195317B (en) 1988-04-28

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