US3834449A - Horizontal support for rotary regenerative heat exchanger - Google Patents

Horizontal support for rotary regenerative heat exchanger Download PDF

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Publication number
US3834449A
US3834449A US00241287A US24128772A US3834449A US 3834449 A US3834449 A US 3834449A US 00241287 A US00241287 A US 00241287A US 24128772 A US24128772 A US 24128772A US 3834449 A US3834449 A US 3834449A
Authority
US
United States
Prior art keywords
shaft
rotor
heat exchange
rotary regenerative
cylindrical sleeve
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
US00241287A
Other languages
English (en)
Inventor
H Finnemore
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.)
Alstom Power Inc
Original Assignee
Air Preheater Co Inc
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 Air Preheater Co Inc filed Critical Air Preheater Co Inc
Priority to US00241287A priority Critical patent/US3834449A/en
Priority to DE2316508A priority patent/DE2316508C2/de
Priority to FR7312211A priority patent/FR2179142B1/fr
Application granted granted Critical
Publication of US3834449A publication Critical patent/US3834449A/en
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
    • F28D19/048—Bearings; Driving 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
    • Y10S165/027—Rotary storage mass with particular rotary bearing or drive means

Definitions

  • the rotor rotates between ducts carrying hot and cool fluids it is inherently subjected to a cyclic heating and cooling process causing alternate expansion and contraction of the rotor that effects a warping and twisting of the rotor and the adjacent housing to destroy a critical sealing relationship therebetween.
  • a continuous shifting of thermal stress causes a loss of strength to the rotor post and surrounding rotor due to cyclic fatigue.
  • the thermal deformation of the rotor causes a cracking and breaking of the joints or weldments between differently stressed parts to effect an overall weakening of the heat exchanger and upon occasion, its complete structural failure.
  • the present invention relates to a rotary regenerative heat exchanger rotatably mounted on a horizontal shaft or support beam that remains fixed so that it is not rotated between hot and cool fluids to be subjected to varying temperatures with a resulting differential of expansion. Therefore, the heat exchanger of the present invention does not alternately expand and contract to break the weldments between welded surfaces or open excessive leakage paths between the relatively movable surfaces, nor is a rotor so constructed subject to loss of strength through cyclic fatigue.
  • FIG. 1 is a horizontal cross-section of a horizontal rotary regenerative heat exchanger
  • FIG. 2 is an enlarged cross-sectional view of a heat exchanger having a fixed horizontal shaft according to my invention
  • FIG. 3 is an enlarged cross-sectional view of a rotor lifting arrangement.
  • the rotor is carried on a horizontal support shaft 12 that is fixedly supported at each end by a stationary support 14.
  • the rotor is comprised of two or more axially spaced layers of heat absorbent element represented at 16A and 168.
  • Each of the layers of element is in turn comprised of a plurality of sectorial baskets arranged in lateral juxtaposition and independently hinged at 20 to a cylindrical sleeve 22 that surrounds the support shaft 12.
  • the entire rotor is enclosed in a housing 24 having suitable inlets and outlets whereby a heating fluid and a fluid to be heated may be directed to and through the heat absorbent element carried by the rotor.
  • the rotor is rotated about its axis slowly by a motor 34 that moves the compartments of heat absorbent element alternately between the heating fluid and the fluid to be heated in order that heat from the heating fluid may be transferred to the fluid to be heated through the intermediary of the heat absorbent material.
  • each basket of element carried by the rotor is independently hinged to the cylindrical sleeve 22, it is free to thermally expand, contract or otherwise distort independently from other baskets either radailly or axially adja cent whereby the cyclical thermal or structural stresses generated in one part of the rotor will not be imparted to the cylindrical sleeve 22, the support shaft 12, or other rotor structure adjacent thereto.
  • ducts 42 for lubricating oil may be readily directed through the cored central position thereof. Accordingly, clean oil is supplied to the several support bearings 42 through the supply duct 44, while contaminated oil already used for lubrication of the bearings is exhausted through ducts 46.
  • a rotor lifting arrangement 52 having a conventional hydraulic cylinder 54 with a suitable source of pressure fluid is located at each end of the apparatus intermediate the cylindrical sleeve 22 and fixed support meansv 44, and said bearings may then be removed for replacement or repair.
  • Rotary regenerative heat exchange apparatus having a cylindrical central shaft forming a duct with ends open to the atmosphere to permit the flow of ambient air therethrough, fixed support means supporting opposite ends of said shaft, a cylindrical sleeve concentrically surrounding said shaft in spaced relation to provide an annular space therebetween open at opposite ends to the atmosphere, a series of sector-shaped baskets arranged in lateral juxtaposition around said sleeve to form a composite rotor, means independently connecting each basket to the cylindrical sleeve, a mass of permeable heat absorbent material carried in each of the sector-shaped baskets, a housing surrounding the rotor having inlet and outlet ports for a heating fluid and a fluid to be heated to permit the axial flow of fluids through spaced baskets of the rotor, means adapted to rotate the rotor about its horizontal axis, and bearing means in the annular space between the cylindrical sleeve and the central shaft adapted to support the cylindrical sleeve for rotation about said shaft.
  • Rotary regenerative heat exchange apparatus mounted on a fixed support shaft as defined in claim 1 including a lifting means intermediate the cylindrical sleeve and the fixed support means adapted to lift the sleeve and surrounding mass of heat absorbent material radially relative to the support shaft whereby the baskets of heat exchange material are entirely supported on the lifting means.
  • Rotary regenerative heat exchange apparatus mounted on a horizontal support shaft as defined in claim 1 wherein lubrication ducts for said bearings lie longitudinally in said shaft and extend radially through the shaft to the surrounding bearings.
  • Rotary regenerative heat exchange apparatus mounted on a horizontal support shaft as defined in claim 1 wherein each basket of heat absorbent material is pivotally secured to the cylindrical sleeve.
  • Rotary regenerative heat exchange apparatus as defined in claim 1 wherein the sector-shaped baskets of heat exchange material lie in axially spaced layers.

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)
  • Sorption Type Refrigeration Machines (AREA)
US00241287A 1972-04-05 1972-04-05 Horizontal support for rotary regenerative heat exchanger Expired - Lifetime US3834449A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00241287A US3834449A (en) 1972-04-05 1972-04-05 Horizontal support for rotary regenerative heat exchanger
DE2316508A DE2316508C2 (de) 1972-04-05 1973-04-03 Rotor für einen Drehspeicherwärmetauscher
FR7312211A FR2179142B1 (cs) 1972-04-05 1973-04-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00241287A US3834449A (en) 1972-04-05 1972-04-05 Horizontal support for rotary regenerative heat exchanger

Publications (1)

Publication Number Publication Date
US3834449A true US3834449A (en) 1974-09-10

Family

ID=22910061

Family Applications (1)

Application Number Title Priority Date Filing Date
US00241287A Expired - Lifetime US3834449A (en) 1972-04-05 1972-04-05 Horizontal support for rotary regenerative heat exchanger

Country Status (3)

Country Link
US (1) US3834449A (cs)
DE (1) DE2316508C2 (cs)
FR (1) FR2179142B1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060037286A1 (en) * 2004-08-21 2006-02-23 Herbert Bernhard Beverage bottling plant for filling bottles with a liquid beverage material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3336472T3 (pl) * 2016-12-13 2023-10-09 Wolf Gmbh Zestaw obrotowego wymiennika ciepła

Citations (2)

* 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
US3516482A (en) * 1968-09-13 1970-06-23 Avco Corp Rotary regenerator with rectangular matrix sections

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710850A (en) * 1971-08-04 1973-01-16 Air Preheater Unrestrained rotor

Patent Citations (2)

* 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
US3516482A (en) * 1968-09-13 1970-06-23 Avco Corp Rotary regenerator with rectangular matrix sections

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060037286A1 (en) * 2004-08-21 2006-02-23 Herbert Bernhard Beverage bottling plant for filling bottles with a liquid beverage material
US20080314476A1 (en) * 2004-08-21 2008-12-25 Herbert Bernhard Beverage bottling plant for filling bottles with a liquid beverage material

Also Published As

Publication number Publication date
DE2316508C2 (de) 1982-10-14
DE2316508A1 (de) 1973-10-11
FR2179142B1 (cs) 1977-09-02
FR2179142A1 (cs) 1973-11-16

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