EP0601167B1 - Regenerativer wärmetauscher - Google Patents

Regenerativer wärmetauscher Download PDF

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Publication number
EP0601167B1
EP0601167B1 EP93914650A EP93914650A EP0601167B1 EP 0601167 B1 EP0601167 B1 EP 0601167B1 EP 93914650 A EP93914650 A EP 93914650A EP 93914650 A EP93914650 A EP 93914650A EP 0601167 B1 EP0601167 B1 EP 0601167B1
Authority
EP
European Patent Office
Prior art keywords
rotor
heat exchanger
slide shoe
radial sealing
sealing device
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
EP93914650A
Other languages
English (en)
French (fr)
Other versions
EP0601167A1 (de
Inventor
Bjarne Nygaard Madsen
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.)
Burmeister and Wain Energy AS
Original Assignee
Burmeister and Wain Energy AS
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 Burmeister and Wain Energy AS filed Critical Burmeister and Wain Energy AS
Publication of EP0601167A1 publication Critical patent/EP0601167A1/de
Application granted granted Critical
Publication of EP0601167B1 publication Critical patent/EP0601167B1/de
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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/047—Sealing means

Definitions

  • the invention relates to a renegerative heat exchanger comprising a heat exchanger matrix in form of a rotor having at each end a smooth, axial face at the periphery, and at each end a radial sealing device which by means of a counterweight over a link connection is kept against the rotor, as well as a spacing device for controlling the axial distance between the radial sealing device and the rotor.
  • the object of the invention is to provide a regenerative heat exchanger, in which the size of the gap is controlled in a simple way without the occurence of the drawbacks described above.
  • the spacing means comprising a slide shoe of carbon which protrudes from the radial sealing and bears against the smooth axial face of the rotor, and by the protrusion of the slide shoe being adjustable relative to the housing.
  • the desired gap size can be determined. This gap size will be maintained irrespectively of possible changes in the geometry of the rotor due to temperature changes in the gases flowing through the rotor, as long as the counterweight keeps the slide shoe against the smooth axial face of the rotor.
  • the slide shoe is during operation fixed against turning relative to the rotor.
  • a better adaptation of the slide shoe to the smooth face of the rotor is attained, which results in reduced friction and reduced wear.
  • a second embodiment of the heat exchanger according to the invention is characteristic in that the force, by which a slide shoe is urged against the smooth face of the rotor is less than 50 kg.
  • the force, by which the slide shoe is urged towards the rotor is to be of a size sufficient to ensure a permanent bearing of the slide shoe against the rotor irrespective of the variations of the geometry of the rotor caused by temperature variations.
  • a third embodiment of the regenerative heat exchanger according to the invention is characteristic in that the spacing device comprises a housing mounted on the face of the radial sealing device opposite the axial face of the rotor, that the radial sealing device is provided with an opening, through which the slide shoe protrudes, that the slide shoe is mounted at one end of a spindle which is axially movable in the housing and which at its other end has a thread engaging a corresponding thread in the housing, and in that the threaded end of the spindle is adapted to engage an adjustment tool and is provided with a thread for a counternut for locking the position of the spindle.
  • the gap is adjusted manually by screwing the spindle with the slide shoe more or less forward towards the smooth axial face of the rotor, after which the spindle is locked by means of a counternut. It will then normally only be necessary, after a longer operation period, to make a manual readjustment on account of wear of the slide shoe. The need for electric or electromagnetic controlling devices, cables, signal devices, etc. therefore does not exist, the result being lower production and maintenance costs of the heat exchanger.
  • Fig. 1 shows a heat exchanger matrix 1 in form of a rotor. For the sake of clarity only the areas at the end faces of the rotor are shown.
  • a radial sealing device 2 is provided which at the centre is supported in a manner not shown in detail and which at each end rests on a supporting arm 3 engaging a slot 4 in the end of the radial sealing device.
  • the supporting arm 3 is connected to a horizontal shaft 5 mounted on a supporting beam 6 which is a part of the supporting construction of the heat exchanger and which in a manner not shown in detail also carries the upper bearing of the rotor.
  • the supporting arm 3 is connected with a rod 7, in which a shroud screw 8 is inserted in such a way that the length of the rod 7 is adjustable.
  • the upper end 7 of the rod is pivotally connected with the one end of a lever arm 9, the other end of which carries a counterweight 10.
  • the lever arm 9 pivots about a shaft 11 supported by bearing brackets 12.
  • a similar arrangement is provided, viz. a radial sealing device 15, the end of which is carrying a supporting arm 16 which is in engagement with a slot 17 in the radial sealing device 15 and which is pivotable about a shaft 18.
  • the supporting arm 16 is connected with the lower end of a rod 20, the length of which is adjustable in the same way as described in respect of the rod 7.
  • the rod 20 is at its upper end connected to one end of a lever arm 22, the other end of which carries a counterweight 23.
  • the lever arm 22 pivots about a shaft 11 supported by bearing brackets 12.
  • Each radial sealing device is at its free ends provided with a spacing device 24 which will be described in detail in the following with reference to Fig. 3.
  • the spacing device 24 comprises a tubular housing 25, which at one end has a flange 26 fastened by means of pin bolts 27 to the side of the radial sealing device 2 opposite the rotor 2.
  • a displaceable spindle 28 is arranged, said spindle carrying at one end a thread 29 engaging a corresponding thread in the housing 25.
  • the spindle has at its free ends a spigot 30 with faces for a spanner.
  • the other end of the spindle carries a bottom plate 32, in which a slide shoe 33 of carbon is fixed against rotation by means of a retaining screw 34.
  • the slide shoe 33 protruding from the housing through an opening 38 in the radial sealing device is shown bearing against the smooth axial face 13 of the rotor which is here constituted by one of the flanges of an angle bar 36 connected to the periphery of the rotor.
  • the gap 37 between the radial sealing device 2 and the rotor face 13 may be set at a desired value.
  • the associated counterweight 10 and the rod 7 are adjusted in such a way that it is ensured that the slide shoe during operation always bears against the face 13 irrespective of whether during operation of the heat exchanger deformations of the geometry of the rotor occur due to variatons of the operation temperature of the rotor.
  • a cylindrical bellows 41 is provided as sealing element between the housing 25 and the supporting beam 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Power Steering Mechanism (AREA)
  • Sealing Devices (AREA)
  • Braking Arrangements (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Air Supply (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (4)

  1. Regenerativer Wärmetauscher umfaßend eine als einen Rotor ausgestaltete Wärmetauschmatrix (1), die an jedem Ende an der Peripherie eine glatte Axialfläche (13) und an jedem Ende eine Radialabdichtungseinrichtung (2; 15) aufweist, welche mittels eines Gegengewichtes (10, 23) über eine Gelenkverbindung (7, 20) gegen den Rotor gehalten wird, sowie eine Abstandseinrichtung (24) zur Steuerung des Radialabstandes zwischen der Radialabdichtungseinrichtung und dem Rotor, dadurch gekennzeichnet, daß die Abstandseinrichtung einen Gleitschuh (33) aus Kohlenstoff umfaßt, der aus der Radialabdichtungseinrichtung hervorragt und gegen die glatte Axialfläche des Rotors anliegt, und daß der Vorsprung des Gleitschuhs im Verhältnis zum Gehäuse einstellbar ist.
  2. Regenerativer Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß der Gleitschuh (33) während des Betriebes im Verhältnis zum Rotor undrehbar festgehalten wird.
  3. Regenerativer Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kraft, womit ein Gleitschuh (33) gegen die glatte Fläche (13) des Rotors gedruckt wird, weniger als 50 kg ist.
  4. Regenerativer Wärmetauscher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Abstandseinrichtung (24) ein Gehäuse (25) umfaßt, das auf der der Axialfläche (13) des Rotors (1) gegenüberliegenden Fläche der Radialabdichtungseinrichtung (2; 15) montiert ist, daß die Radialabdichtungseinrichtung mit einer Öffnung versehen ist, durch welche der Gleitschuh (33) hervorragt, daß der Gleitschuh an dem einen Ende einer im Gehäuse axial beweglichen Spindel (28) montiert ist, die an ihrem anderen Ende ein Gewinde (2) im Eingriff mit einem korrespondieren Gewinde im Gehäuse aufweist, und daß das Gewindende der Spindel zum Eingriff mit einem Einstellwerkzeug eingerichtet und mit einem Gewinde für eine Gegenmutter (31) zum Verriegeln der Stellung der Spindel versehen ist.
EP93914650A 1992-07-07 1993-07-06 Regenerativer wärmetauscher Expired - Lifetime EP0601167B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK892/92 1992-07-07
DK089292A DK168649B1 (da) 1992-07-07 1992-07-07 Regenerativ varmeveksler
PCT/DK1993/000228 WO1994001730A1 (en) 1992-07-07 1993-07-06 Regenerative heat exchanger

Publications (2)

Publication Number Publication Date
EP0601167A1 EP0601167A1 (de) 1994-06-15
EP0601167B1 true EP0601167B1 (de) 1995-12-06

Family

ID=8098719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93914650A Expired - Lifetime EP0601167B1 (de) 1992-07-07 1993-07-06 Regenerativer wärmetauscher

Country Status (7)

Country Link
EP (1) EP0601167B1 (de)
AT (1) ATE131280T1 (de)
DE (1) DE69300967T2 (de)
DK (1) DK168649B1 (de)
ES (1) ES2080623T3 (de)
PL (1) PL171829B1 (de)
WO (1) WO1994001730A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504008C2 (sv) * 1995-02-10 1996-10-14 Ljungstroem Technology Ab Roterande, regenerativ värmeväxlare där spelrummet mellan sektorplåt och rotor upprätthålls med hjälp av en gaskudde, samt sätt att driva en sådan värmeväxlare
SE503962C2 (sv) * 1995-02-10 1996-10-07 Ljungstroem Technology Ab Regenerativ värmeväxlare och ett sätt att driva en regenerativ värmeväxlare
SE504019C2 (sv) * 1995-02-24 1996-10-21 Ljungstroem Technology Ab Roterande regenerativ värmeväxlare och sätt att styra en sådan värmeväxlare
SE504462C2 (sv) * 1995-06-08 1997-02-17 Ljungstroem Technology Ab Regenerativ, roterande värmeväxlare med styrning som förhindrar vridning av släpsko
US5845700A (en) * 1996-10-31 1998-12-08 Ljungstrom Technology Ab Rotary regenerative heat exchanger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95726C (de) * 1956-02-27
DE1035843B (de) * 1956-04-12 1958-08-07 Kraftanlagen Ag Umlaufender Regenerativ-Vorwaermer mit beweglichen Sektorplatten und Waelzkoerpern
DE1133850B (de) * 1961-02-21 1962-07-26 Kraftanlagen Ag Nachstellvorrichtung fuer die Sektorenplatten bei umlaufenden Regenerativ-Vorwaermern
US3246686A (en) * 1962-03-05 1966-04-19 Svenska Rotor Maskiner Ab Regenerative preheater including heat transfer mass and floating sealing plates
JPS4987548U (de) * 1972-11-20 1974-07-30
US4024907A (en) * 1976-01-08 1977-05-24 The Air Preheater Company, Inc. Sealing plate support

Also Published As

Publication number Publication date
DE69300967T2 (de) 1996-08-29
EP0601167A1 (de) 1994-06-15
ES2080623T3 (es) 1996-02-01
DK168649B1 (da) 1994-05-09
DE69300967D1 (de) 1996-01-18
WO1994001730A1 (en) 1994-01-20
ATE131280T1 (de) 1995-12-15
DK89292D0 (da) 1992-07-07
PL302676A1 (en) 1994-08-08
PL171829B1 (en) 1997-06-30
DK89292A (da) 1994-01-08

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