EP1923545B1 - Système de récupération de chaleur - Google Patents

Système de récupération de chaleur Download PDF

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Publication number
EP1923545B1
EP1923545B1 EP07113857A EP07113857A EP1923545B1 EP 1923545 B1 EP1923545 B1 EP 1923545B1 EP 07113857 A EP07113857 A EP 07113857A EP 07113857 A EP07113857 A EP 07113857A EP 1923545 B1 EP1923545 B1 EP 1923545B1
Authority
EP
European Patent Office
Prior art keywords
bypass
shut
opening
heat recovery
recovery system
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.)
Not-in-force
Application number
EP07113857A
Other languages
German (de)
English (en)
Other versions
EP1923545A3 (fr
EP1923545A2 (fr
Inventor
Hans-Jürgen Janich
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.)
Janich GmbH and Co KG
Original Assignee
Janich GmbH and Co KG
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 Janich GmbH and Co KG filed Critical Janich GmbH and Co KG
Publication of EP1923545A2 publication Critical patent/EP1923545A2/fr
Publication of EP1923545A3 publication Critical patent/EP1923545A3/fr
Application granted granted Critical
Publication of EP1923545B1 publication Critical patent/EP1923545B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • 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
    • 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
    • F28F2250/06—Derivation channels, e.g. bypass

Definitions

  • the invention relates to a heat recovery system with a boiler area and a bypass.
  • WO 99/64806 discloses such a heat recovery system.
  • the invention is therefore an object of the invention to provide a heat recovery system that is characterized by a structurally much simpler designed and cost gas well.
  • the heat recovery system consists essentially of a boiler area, a bypass, at least one gas switch and an opening for supplying a gas and an opening for discharging the gas.
  • the bypass and the boiler area are rotationally symmetrical and the boiler area is arranged concentrically around the bypass.
  • the gas switch also has a stopper surfaces cooperating shut-off to supply the gas supplied wholly or partially to the boiler area or the bypass.
  • the housing of the gas switch has a polygonal cross-section and the stop surfaces are straight.
  • the proposed solution also requires no displacement body in the interior of the bypass, whereby an enormous space and material savings can be achieved.
  • the at least one obturator is pivotable about a pivot axis.
  • the gas switch has at least one, preferably a plurality of openings to the boiler area and at least one opening to the bypass and the obturator is provided on both sides with seals, the seals on one side with stop surfaces in the region leading to the boiler area opening and the seals on the other side cooperate with stop surfaces in the area of the opening leading to the bypass.
  • shut-off valves are provided, the pivot axes of which are arranged on the sides of a quadrangle which forms the opening to the bypass.
  • the gas switch can then be formed in particular cuboid, wherein the bypass leading to the opening in the upper side surface, the opening for supplying the gas in the lower side surface and four leading to the boiler area openings in the side surfaces of the parallelepiped gas switch are provided.
  • the four shut-off devices can then be arranged with their pivot axes, in particular in the region of the four upper edges of the parallelepiped gas switch.
  • shut-off valves are formed trapezoidal, each opening in the side surfaces is assigned a shut-off and all four shut-off valves are provided for closing the opening leading to the bypass, the shut-off thereby collapsible in the manner of a pyramid or a truncated pyramid are to close the opening leading to the bypass.
  • shut-off devices are preferably arranged so that in the opened state of the bypass at least 70%, preferably at least 80%, in particular more than 90% of the cross section of the bypass are released. In the arrangement described above, it is also quite possible that 100% of the cross section is released.
  • FIG. 1 Heat recovery system shown consists essentially of a boiler area 1, an internal bypass 2, a lower gas switch 3, an upper gas switch 4 and an opening 5 for supplying a gas and an opening 6 for discharging the gas. While the bypass 2 and the boiler area 1 are rotationally symmetrical and the boiler area is arranged concentrically around the bypass, the two gas switches 3, 4 have housing with an angular cross-section. Between the round opening 5 for feeding and the lower gas switch 3, therefore, a transition piece 7 is provided from a round to an angular cross-section. In a similar way between the lower gas switch 3 and the bypass 2, a transition piece 8 provided for the transition from square to round. The upper gas switch 4 is connected in the same way with transition pieces to the bypass 2 and to the opening 6.
  • the upper gas switch 4 is formed in a corresponding manner and arranged only mirrored.
  • the gas switch 3 has a housing 30 with a polygonal cross section.
  • the housing 30 is formed in particular cuboid.
  • an opening 31a leading to the bypass 2 is provided, while the gas is supplied through an opening 31b in the lower side surface.
  • an opening 30c-30f leading to the boiler area is provided in each case.
  • shut-off valves 32a-32d are provided, the pivot axes 33a-33b are arranged in the region of the four upper edges of the cuboid gas switch 3.
  • shut-off valves 32a-32d are trapezoidal, wherein each opening 31c-31f in the side surfaces of the housing 30 is associated with a shut-off. Accordingly, these openings 31c-31f are also trapezoidal in shape. All four shut-off valves 32a-32d are provided for closing the bypass-leading opening 31a, the shut-off devices being collapsible in the manner of a pyramid or a truncated pyramid so as to close the bypassing opening 31a (see FIG Fig. 2 and 3 ).
  • the side walls of the housing 30 could be arranged inclined in the form of a truncated pyramid, whereby the inflow into the boiler area is favored.
  • an adjusting mechanism is provided in the interior of the bypass 2, which adjusts at least one obturator, but preferably all the shut-off devices together.
  • the adjustment mechanism is formed by a drivable gear 11a in conjunction with a first and a second drive block 11b, 11e, whereby the drive block 11b can be adjusted in the direction of the double arrow 11c in the longitudinal axis.
  • the two sticks are thereby moved in opposite directions, so that one lantern moves up while the other lantern moves down and vice versa.
  • the gear is driven by a motor located outside the bypass / boiler area.
  • the shut-off devices 32a-32b are articulated via toggle 11d on the drive shaft 11b. In this way, a very simple and effective adjustment of the flaps between the two extreme positions.
  • the trapezoidal shut-off devices in connection with the toggle lever drive enable a sensitive control behavior at the beginning of the opening process.
  • shut-off elements of the lower and upper gas switches 3, 4 can be adjusted simultaneously in a particularly simple and reliable manner.
  • This adjustment mechanism also offers the possibility to effect an independent and rapid closing of the openings leading to the boiler area in that the vertical linkage connected to the toggle levers with a Case weight is provided that can be released, for example, via an externally arranged electromagnetic clutch.
  • shut-off devices 32a-32d can be formed flat.
  • Each obturator is designed, for example, as a lattice structural wing with freely movable, gimbal-mounted wing plates, whereby a heat distortion can be avoided even at high and rapidly changing temperatures.
  • the shut-off elements furthermore have seals 34a-34d, which cooperate with correspondingly straight or planar stop surfaces in the area of the openings 31c-31f leading to the boiler area or with corresponding stop surfaces in the area of the opening 31a leading to the bypass.
  • the seals are formed for example by flexible stainless steel loops, which have a support member inside, in particular a V-shaped support member. Due to the straight or planar design of the shut-off devices, the corresponding stop surfaces are also straight or planar, so that a reliable seal can be ensured in a simple manner.
  • the stop surfaces can be formed, for example, by corresponding struts 35a-35d, as can be seen in particular from FIGS Fig. 2 and Fig. 5 can be seen. It would also be conceivable that these struts are completely dispensed with and the shut-off elements come into contact with each other.
  • the inventive solution of the gas switch is characterized by a very space and material-saving and cost-effective design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Temperature-Responsive Valves (AREA)
  • Sliding Valves (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Other Air-Conditioning Systems (AREA)

Claims (11)

  1. Système de récupération de chaleur, avec une zone de chauffage (1), un by-pass (2), au moins un déflecteur de gaz (3, 4), ainsi qu'une ouverture (5) pour l'entrée du gaz et une ouverture (6) pour la sortie du gaz, sachant que le by-pass (2) et la zone de chauffage sont symétriques en rotation et que la zone de chauffage est disposée concentriquement par rapport au by-pass (2) et que le déflecteur de gaz (3, 4) est doté d'au moins un organe de fermeture (32a - 32d), qui coopère avec des surfaces de butée pour conduire le gaz, complètement ou partiellement, à la zone de chauffage ou au by-pass, caractérisé en ce que le déflecteur de gaz (3, 4) est doté d'un carter (30), qui présente une section transversale angulaire et que les surfaces de butée sont droites.
  2. Système de récupération de chaleur selon la revendication 1, caractérisé en ce que l'organe de fermeture (32a - 32d) peut pivoter autour d'un axe de pivotement (33a - 33d).
  3. Système de récupération de chaleur selon la revendication 1, caractérisé en ce que le déflecteur de gaz (3, 4) est doté d'au moins une ouverture, de préférence de plusieurs ouvertures (31c - 31f) conduisant à la zone de chauffage (1) et d'au moins une ouverture (31a) conduisant au by-pass (2), et que l'organe de fermeture (32a - 32d) est pourvu, des deux côtés, de joints d'étanchéité (34a - 34d), sachant que les joints d'étanchéité de l'un des côtés coopèrent avec des surfaces de butée dans la région de l'ouverture conduisant à la zone de chauffage et que les joints d'étanchéité de l'autre côté coopèrent avec des surfaces de butée dans la région de l'ouverture conduisant au by-pass.
  4. Système de récupération de chaleur selon la revendication 3, caractérisé en ce que les ouvertures (31c - 31f) conduisant à la zone de chauffage (1) sont disposées transversalement par rapport à la direction d'entrée du gaz dans le déflecteur de gaz (3).
  5. Système de récupération de chaleur selon la revendication 1, caractérisé en ce que sont prévus quatre organes de fermeture (32a - 32d), dont les axes de pivotement (33a - 33d) sont disposés sur les côtés d'un quadrilatère, qui forme l'ouverture conduisant au by-pass (2).
  6. Système de récupération de chaleur selon la revendication 1, caractérisé en ce que le déflecteur de gaz (3, 4) est réalisé en forme de parallélépipède, sachant que l'ouverture (31a) conduisant au by-pass est prévue dans la surface latérale inférieure et les quatre ouvertures conduisant à la zone de chauffage sont prévues dans les surfaces latérales du déflecteur de gaz (3, 4) en forme de parallélépipède.
  7. Système de récupération de chaleur selon la revendication 6, caractérisé en ce que sont prévus quatre organes de fermeture (32a - 32d), dont les axes de pivotement (33a - 33d) sont disposés dans la région des quatre bords supérieurs du déflecteur de gaz parallélépipédique.
  8. Système de récupération de chaleur selon la revendication 7, caractérisé en ce que sont prévus quatre organes de fermeture (32a - 32d), qui sont réalisés en forme de trapèzes, un organe de fermeture étant associé à chacune des ouvertures pratiquées dans les surfaces latérales et les quatre organes de fermeture étant tous prévus pour fermer l'ouverture (31a) conduisant au by-pass (2), sachant que lesdits organes de fermeture peuvent être pliés en forme de pyramide ou de pyramide tronquée, afin de fermer l'ouverture conduisant au by-pass.
  9. Système de récupération de chaleur selon la revendication 1, caractérisé en ce qu'un mécanisme d'actionnement (11) est prévu à l'intérieur du by-pass (2) pour actionner l'organe de fermeture au moins prévu.
  10. Système de récupération de chaleur selon la revendication 1, caractérisé en ce que l'organe de fermeture (32a - 32d) au moins prévu libère au moins 70 %, de préférence 80 %, de la section transversale du by-pass, quand ledit by-pass est à l'état ouvert.
  11. Système de récupération de chaleur selon la revendication 1, caractérisé en ce qu'un déflecteur de gaz (3, 4), doté d'au moins un organe de fermeture (32a - 32d), est prévu à l'entrée, tout comme à la sortie du by-pass (2).
EP07113857A 2006-08-11 2007-08-06 Système de récupération de chaleur Not-in-force EP1923545B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006037773A DE102006037773A1 (de) 2006-08-11 2006-08-11 Wärmerückgewinnungssystem

Publications (3)

Publication Number Publication Date
EP1923545A2 EP1923545A2 (fr) 2008-05-21
EP1923545A3 EP1923545A3 (fr) 2011-01-05
EP1923545B1 true EP1923545B1 (fr) 2011-07-13

Family

ID=38922118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07113857A Not-in-force EP1923545B1 (fr) 2006-08-11 2007-08-06 Système de récupération de chaleur

Country Status (4)

Country Link
EP (1) EP1923545B1 (fr)
AT (1) ATE516423T1 (fr)
DE (1) DE102006037773A1 (fr)
DK (1) DK1923545T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0813938D0 (en) 2008-07-30 2008-09-03 Heat Recovery Solutions Ltd Heat exchanger
IT1393595B1 (it) * 2009-03-31 2012-04-27 Materia S R L Scambiatore di calore a giro di fumi
SE536960C2 (sv) * 2012-12-20 2014-11-11 Scania Cv Ab Värmeväxlare med bypasskanaler
GB2515330B (en) 2013-06-20 2015-11-04 Boustead Internat Heaters Ltd Improvements in waste heat recovery units
GB2561855A (en) * 2017-04-25 2018-10-31 Linde Aktiengesellshcaft Heat exchanger and method for operating a heat exchanger
GB2601773B (en) * 2020-12-09 2023-03-29 Helical Energy Ltd A heat exchange unit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173717A (en) * 1968-04-11 1969-12-10 Vapor Corp Heat Exchange Apparatus.
US4498524A (en) * 1977-08-08 1985-02-12 Jacobsen Orval E Heat exchanger with by-pass
DE2927161C2 (de) * 1979-07-05 1985-10-03 Pohl, Joachim, 5000 Köln Verfahren und Vorrichtung zur Wassererhitzung durch Wärmerückgewinnung aus den Abgasen eines Heizungskessels
GB9812238D0 (en) * 1998-06-08 1998-08-05 Schack Engineering Gb Limited Heat exchanger
DE10047463A1 (de) * 2000-09-21 2001-07-05 J H K Anlagenbau Und Service G Verfahren und Vorrichtung zur Erzeugung von Dampf mit Hilfe von Abgasen aus Schiffs-Dieselmotoren
US20050133202A1 (en) * 2001-11-09 2005-06-23 Aalborg Industries A/S Heat exchanger, combination with heat exchanger and method of manufacturing the heat exchanger

Also Published As

Publication number Publication date
EP1923545A3 (fr) 2011-01-05
DK1923545T3 (da) 2011-10-24
DE102006037773A1 (de) 2008-02-14
ATE516423T1 (de) 2011-07-15
EP1923545A2 (fr) 2008-05-21

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