US3194302A - Regenerative heat exchanger - Google Patents

Regenerative heat exchanger Download PDF

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Publication number
US3194302A
US3194302A US222265A US22226562A US3194302A US 3194302 A US3194302 A US 3194302A US 222265 A US222265 A US 222265A US 22226562 A US22226562 A US 22226562A US 3194302 A US3194302 A US 3194302A
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US
United States
Prior art keywords
heat exchange
heat
exchange member
heat exchanger
housing
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
US222265A
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English (en)
Inventor
Kronogard Sven-Olof
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.)
Volvo AB
Original Assignee
Volvo AB
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Filing date
Publication date
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Publication of US3194302A publication Critical patent/US3194302A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F28D19/048—Bearings; Driving means
    • 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
    • F28D19/041—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 with axial flow through the intermediate heat-transfer medium
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/009—Heat exchange having a solid heat storage mass for absorbing heat from one fluid and releasing it to another, i.e. regenerator
    • Y10S165/013—Movable heat storage mass with enclosure
    • Y10S165/016—Rotary storage mass
    • Y10S165/02—Seal and seal-engaging surface are relatively movable

Definitions

  • This invention relates to a rotary regenerative heat exchanger, particularly for gas turbine power plants, comprising a housing having an inlet and an outlet for a heating and a .heated elastic fluid, and a heat exchange member mounted for rotation in said housing and divided into a plurality of sections.
  • the heat exchanger is usually the largest one of these components.
  • the sections of the heat exchange member are in the form of substantially wedge-shaped chambers having apertures for the supply and discharge of the fluids, said chambers being filled with a heat-absorbing material and arranged circularly around the axis of rotation with the apertures orientated in the direction of said axis, the annular zone of the part of the heat exchange member confronting the apertures extending radially over 50 to 90% of the radial extent of said sections. Due to the comparatively great radial extent of the part of the heat exchange member confronting the apertures there is obtained a very uniform distribution of the fluid over the end surface of the heat absorbing material even if this end surface be located at a relatively short distance within the plane of the apertures.
  • FIG. 1 is an axial sectional view of a regenerative heat exchangeraccording to the invention and FIG. 2 1s a partial sectional end view of this heat exchanger.
  • the heat exchanger illustrated in the drawing is intended for a gas turbine power plant in which the residual heat of the exhaust gases from the turbine is to be recovered and used for preheating the combustion air.
  • the heat exchanger comprises a housing 1 and a cover la having a distributor chamber 2 for the air and a collecting chamber 3 for the exhaust gas, said chambers being separated from each other by means of a partition 4.
  • the cover In carries a central inlet duct 5 on which the heat exchange member is mounted for rotation by means of ball bearings 6.
  • the heat exchange member comprises an annular case having an outer wall 7 and an inner wall 8.
  • the case also has end walls 9 and it which are flat at their outsides and have two sets of circular apertures 11 and t2, the apertures 11 being of larger diameter and located radially outwards of the apertures 12.
  • the chambers are substanially wedge-shaped and provided with openings corresponding to the apertures 11 and 12.
  • the end walls of the chambers 13 are conically pressed outwards around the openings and carry cylindrical collars 15 which "ice are guided in the openings in the end walls of the case 7 and provided with sealing piston rings 16. Due to this arrangement the chambers 13 have a certain freedom of motion relative to the case 7, whereby to avoid detrimental thermal stresses.
  • the air arriving from the compressor of the turbine power plant passes via a space 17 in the housing 1 of the heat exchanger and through the inlet duct 5 to the distributor chamber 2 and hence passes through the heat exchange member from the left to the right, as viewed in FIG. 1.
  • the exhaust gas from the turbine enters a distributor chamber 18 in the housing 1 of the heat exchanger and passes through the heat exchange member from the right to the left in FIG. 1.
  • the gas leaves the collecting chamber 3 through a diagrammatically indicated outlet 19.
  • sealing members 20 and 21 are provided on either side of the heat exchange member.
  • the seal-ing members have arc-shaped openings the edges of which are denoted at 22 and 23, respectively, in FIG. 2.
  • the sealing members 26* and 21 are carried by bellows 24, FIG. 1, to which air under pressure is supplied so that the sealing members are forced against the flat end walls 9' and It
  • the thrust can be chosen such as to relieve the ball bearings 6 from axial forces.
  • support rollers 25 which initially may be located entirely inside the surface of the sealing element but upon a certain wear of the sealing element come into contact with flat end walls 9 and lit.
  • the support rollers take the main thrust such that the sealing surfaces only just come into contact with each other. Consequently, the sealing surfaces will be subject to moderate wear.
  • the air supplied to the bellows 24 leaks past the rollers and cools the rollers as well as the sealing surfaces.
  • the regenerator material 14 consists advantageously of a corrugated foil-shaped material of the ceramic type. These foils are arranged in the chamber 13 such that parallel narrow ducts formed by the corrugations extend through the heat exchange member, as will be seen from FIG. 1.
  • the ceramic material is light and has a very large surface with resulting high capacity in spite of the fact that the thermal conductivity of the material is low. 'The last-named property is advantageous from the point of view of minimizing the transport of heat from the hot end to the cold end of the material.
  • this material is very brittle, but since it is divided in a plurality of small sections provided in individual chambers, the material will not be subjected to considerable mechanical stresses. In case of damage individual sections can be exchanged. It may happen that a heat exchanger takes fire. In the heat exchanger described the fire is not likely to spread over the entire heat exchange member, and since the ceramic material is highly heat-resistant, it is not likely to be damaged.
  • the converging lateral surfaces of the chamber 13 are corrugated to increase the stiffness thereof.
  • the corrugations are displaced relative each other such that the corrugations of one element project into the corrugations of an adjacent element in the assembly.
  • Said corrugations of the walls of the chamber do not extend throughout the entire height of the walls.
  • At the ends of the walls there are provided fiat wall portions.
  • sealing rings in conformity with the wedge-shape of the chamber, said sealing rings preventing the fiuids from passing between the walls of the chamber and the heat absorbing filling material.
  • seating rings may be V-shaped in cross section so as to be resilient, one limb of the V bearing upon the inside of thewall of the chamber and the other one bearingupon; the filling material.
  • the two contacting edges may be. provided with outwardlybent flaps which are received in the filling material and inthe recesses in the .Wall of the chamber, respectively, such as to localize thefilling. material in its position-in the chamber.”
  • These sealing rings which may be replaced by separatelstrips serve three purposes. They act as sealing members, they retain the filling material elastically to prevent damage by' a thermal expansion of the chamber, and they lock the filling material'axially of the chamber.
  • apertures 11 and 12 extends radially over 50 to 90% of the radial extent ofthe chambers 13.
  • the fluids are able to distribute themselves over.
  • the axial In addition, the axial.
  • a may be taken'to ,spreadthe fluids.
  • a'conical perforated screen such as a conicalnetting', maybe.
  • tures may be replaced by'a single aperture conforming to'the shape of the chamber.
  • packings, 0-1
  • bers 2 and 3 extend substantially; throughanganglepf; 180. Insertedin the cover, are guide vanes28 which dei flect the air from-'the'inlet duct5 also toctheends of the chamber 2 so as to contributeto'a uniforminflow through the openings 23 and. to cool a comparativelyflarge"por-2 7 tionof theoutside of the cover- 1.
  • Y 1 a The invention is not 'limited'to the:illustratedand de scribed embodiment and. .can be modified asto 'the de tails thereof,.within the scope .ofjthe annexed claims.
  • a regenerative heat exchanger as claimed in claim 1- and which further includes guide vanes; in'said distributing ⁇ chamber for, deflecting fluid from said" inlet 5 duct evenly to the receptacles of said heat exchange member.

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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)
US222265A 1961-09-11 1962-09-10 Regenerative heat exchanger Expired - Lifetime US3194302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE902461 1961-09-11

Publications (1)

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US3194302A true US3194302A (en) 1965-07-13

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US222265A Expired - Lifetime US3194302A (en) 1961-09-11 1962-09-10 Regenerative heat exchanger

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US (1) US3194302A (de)
DE (1) DE1426233B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339364A (en) * 1965-12-29 1967-09-05 Gen Electric Means for reducing leakage in rotary regenerators
US3360275A (en) * 1966-01-25 1967-12-26 Gen Motors Corp By-pass seal
US3367403A (en) * 1965-09-03 1968-02-06 United Aircraft Corp Regenerator hub support
FR2163766A1 (de) * 1971-12-18 1973-07-27 Penny Robert
JPS50112841A (de) * 1973-10-26 1975-09-04
JPS5211312A (en) * 1975-06-24 1977-01-28 Deere & Co Gas turbine engine
FR2470858A1 (fr) * 1979-11-28 1981-06-12 Fiat Ricerche Dispositif de refroidissement pour air de suralimentation d'un moteur a combustion interne
US5577551A (en) * 1992-09-09 1996-11-26 Apparatebau Rothemuhle Brandt & Kritzler Gmbh Regenerative heat exchanger and method of operating the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008479A1 (de) 2009-02-11 2010-08-12 Fischer Automotive Systems Gmbh & Co. Kg Halter für einen Getränkebehälter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746598A (en) * 1924-11-28 1930-02-11 Ljungstroms Angturbin Ab Regenerative-heat-transmission apparatus
US2852233A (en) * 1952-12-23 1958-09-16 Parsons C A & Co Ltd Regenerative heat exchangers especially for combustion turbines
US2902267A (en) * 1955-10-31 1959-09-01 Carrier Corp Rotary regenerator seals
US2951686A (en) * 1954-07-02 1960-09-06 Sandmann Herbert Heat exchangers
US2965361A (en) * 1957-08-01 1960-12-20 Continental Aviat & Eng Corp Heat exchangers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655313A (de) * 1900-01-01
DD20285A (de) *
DE852555C (de) * 1950-01-06 1952-10-16 Ricardo & Co Engineers Waermeaustauscher
DE1102784B (de) * 1953-06-12 1961-03-23 Carrier Corp Rotierender Regenerativ-Waerme-austauscher der Scheibenbauart mit an den Stirnflaechen des Rotors angeordneten nicht umlaufenden Dichtmitteln
CH334078A (de) * 1953-07-13 1958-11-15 Georg Munters Carl Rotierender Regenerativwärmeaustauscher
DE1036288B (de) * 1954-09-10 1958-08-14 Henschel & Sohn Gmbh Drehender Regenerativ-Waermeaustauscher
DE944647C (de) * 1954-09-11 1956-06-21 Henschel & Sohn G M B H Gasturbinenanlage mit drehendem, ringfoermigem Regenerator
DE1042619B (de) * 1957-02-18 1958-11-06 Kraftanlagen Ag Umlaufender Regenerativ-Waermeaustauscher
FR1185339A (fr) * 1961-07-13 1959-07-31 Gen Motors Corp Moteur à turbine à gaz

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746598A (en) * 1924-11-28 1930-02-11 Ljungstroms Angturbin Ab Regenerative-heat-transmission apparatus
US2852233A (en) * 1952-12-23 1958-09-16 Parsons C A & Co Ltd Regenerative heat exchangers especially for combustion turbines
US2951686A (en) * 1954-07-02 1960-09-06 Sandmann Herbert Heat exchangers
US2902267A (en) * 1955-10-31 1959-09-01 Carrier Corp Rotary regenerator seals
US2965361A (en) * 1957-08-01 1960-12-20 Continental Aviat & Eng Corp Heat exchangers

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367403A (en) * 1965-09-03 1968-02-06 United Aircraft Corp Regenerator hub support
US3339364A (en) * 1965-12-29 1967-09-05 Gen Electric Means for reducing leakage in rotary regenerators
US3360275A (en) * 1966-01-25 1967-12-26 Gen Motors Corp By-pass seal
FR2163766A1 (de) * 1971-12-18 1973-07-27 Penny Robert
JPS50112841A (de) * 1973-10-26 1975-09-04
JPS5211312A (en) * 1975-06-24 1977-01-28 Deere & Co Gas turbine engine
JPS584172B2 (ja) * 1975-06-24 1983-01-25 デイ−ア・アンド・カンパニ− ガスタ−ビンエンジン
FR2470858A1 (fr) * 1979-11-28 1981-06-12 Fiat Ricerche Dispositif de refroidissement pour air de suralimentation d'un moteur a combustion interne
US5577551A (en) * 1992-09-09 1996-11-26 Apparatebau Rothemuhle Brandt & Kritzler Gmbh Regenerative heat exchanger and method of operating the same

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Publication number Publication date
DE1426233B1 (de) 1970-05-06

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