US3874442A - Pack of heat absorbing material and a support member therefor - Google Patents

Pack of heat absorbing material and a support member therefor Download PDF

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Publication number
US3874442A
US3874442A US331245A US33124573A US3874442A US 3874442 A US3874442 A US 3874442A US 331245 A US331245 A US 331245A US 33124573 A US33124573 A US 33124573A US 3874442 A US3874442 A US 3874442A
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US
United States
Prior art keywords
plates
pack
stack
frame structure
lift element
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
US331245A
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English (en)
Inventor
Bo Johnsson
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.)
Svenska Rotor Maskiner AB
Original Assignee
Svenska Rotor Maskiner AB
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Filing date
Publication date
Application filed by Svenska Rotor Maskiner AB filed Critical Svenska Rotor Maskiner AB
Application granted granted Critical
Publication of US3874442A publication Critical patent/US3874442A/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
    • F28D19/041—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
    • F28D19/042—Rotors; Assemblies of heat absorbing masses
    • F28D19/044—Rotors; Assemblies of heat absorbing masses shaped in sector form, e.g. with baskets
    • 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
    • Y10S165/042—Particular structure of heat storage mass
    • Y10S165/043—Element for constructing regenerator rotor

Definitions

  • the erative heat exchanger composed of a stack of plate [30] Forelgn Apphc auon Pl-l0my Data elements and a support member therefor.
  • the support 1972 member comprises a frame structure contacting one end of the stack and a lift element extending through the stack and projecting from the opposite end [51] Int. F28d 19/00 thereof
  • the Stack is further provided with two rods [58] Field of 165/5, 10
  • the number of plates contained in a regenerator body of an air preheater may amount to 100 000 or more. It is evident that the filling of such a regenerator body manually with separate plates would involve a very time-consuming work. It has therefore become common practice to put plates together to form stacks of suitable size and form already in connection with the cutting of the plates at the workshop and these stacks are placed in basket-like structures or the plates in the stack are kept together by other means to form units which may be easily transported to the place where the boiler plant is erected. The units are then placed in the regenerator body according to a predetermined plan.
  • the invention has for its main object to provide a pack of rectangular element plates for rotary regenerative heat exchangers which eliminates or reduces the drawbacks mentioned above.
  • the pack is of the type which includes a stack of plates which are profiled such as to form open-ended passages for the heat exchanging fluids extending between two parallel surfaces of the stack.
  • One feature of the invention is a support member comprising a frame structure engaging one of said parallel end surfaces and strapped to the stack during transport.
  • the frame structure is provided with at least one elongated lift element secured to said frame structure and projecting perpendicularly therefrom through the stack, the free end of said lift element being accessible at the other of said parallel end surfaces and shaped to be engaged by a hoisting device.
  • the lift element is further located such as to pass substantially through the centre of gravity of the pack.
  • Another feature of the invention is a number of rods passing through the stack of plates generally in parallel with the carrying frame structure. Those rods prevent relative motion of the plates in directions transverse to the direction-of the rods during transport of the pack before the insertion thereof into the regenerator body. A further aim of those rods is to prevent the outer plates of the pack to slip beyond the carrying frame structure, when the pack is inserted in the regenerator body and unstrapped.
  • the invention also includes a support member for a stack of rectangular element plates for a rotary regenerative heat exchanger.
  • the support member comprises a frame structure on which, in use, the element plates are supported and at least one elongated lift element secured to the frame structure, the lift element having a length so as to project beyond the plates when supported on the frame structure.
  • FIG. 1 shows a perspective view of a rotary regenerative air preheater provided with plate packs according to the invention
  • FIG. 2 shows a perspective view of such a pack before insertion in the preheater
  • FIG. 3 shows diagrammatically two superimposed packs, the packs being shown separated from each other in order to simplify the explanation of their cooperation.
  • numeral 10 generally indicates a plate pack including a plate stack 12 and a support member 14. The stack is joined to the support member by means of straps 16.
  • the plates are of rectangular shape and provided with spacing means such as notches (not shown) in the plates so that they define open-ended passages for the heat exchanging fluids. All the plates are of the same height but of successively changing width resulting in a substantially trapezoidal stack form. The upper and lower end surfaces of the stack are parallel, whereas the two side surfaces of the stack converge from the right front plate 15 towards the left front plate 17 of the stack as viewed in FIG. 2.
  • FIG. 3 illustrates two packs 10A and 10B of two superimposed pack layers, the plate stacks 12 being indicated by chain-dotted lines.
  • each support member 14 comprises a frame structure including two longitudinal girders 20 interconnected by three cross-pieces 22, and a lift element 24 in the form of a flat rod secured to the intermediate cross-pieces 22 and projecting perpendicularly from the frame structure while extending through stack 12 between two plates thereof. At its free end protruding through the upper end surface of the stack the lift element 24 is provided with an opening 26 for a hook or the like of a hoisting device.
  • the intermediate cross-piece 22 is located such that the lift element 24 passes at least near the centre of gravity of the pack 10. Thus, when the pack is lifted by means of a hoisting device it will occupy a substantially horizontal position.
  • the contour of the frame structure is substantially similar to that of the contacting lower surface of the plate stack but of smaller width.
  • the plates extends a small distance beyond the girders 20.
  • the stack 12 In its compressed state the stack 12 has substantially the same length as the frame structure whereas in expanded state of the stack 12 the front plates 15, 17 project outside the ends of the girders 20.
  • the straps 16 In order that the straps 16 shall be able to effectively maintain the stack in its compressed condition the cross-pieces 22 at the ends of the frame structure are located at a suitable distance from the ends of the girders 20.
  • the regenerative mass is subdivided into two or more layers.
  • the packs of the lowermost pack layer may rest on brackets secured to the radial partitions and cooperating with the girders of the packs while the packs of the next layer may with their girders rest on the packs located below.
  • the lift element 24 of a lower pack 10A would interfere with that of an upper pack 10B.
  • the lift element of one of the packs is secured to one side of the intermediate cross-piece 22 while the lift element of the other pack is secured to the other side thereof as illustrated in FIG. 3.
  • the sectorial compartments of the regenerator body are subdivided into two or more chambers by tangential walls.
  • the packs are dimensioned and shaped such that one single pack substantially entirely fills the cross-section of the specific chamber for which it is intended.
  • the straps 16 are cut off and removed thereby permitting the plate stack to expand in radial direction into elastic contact with the tangential walls of the chamber.
  • Each plate of the stack 12 is provided with two holes located adjacent to one side edge of the plate and preferably punched simultaneously with the cutting of the edge. The holes of adjacent plates register with each other to form two straight channels extending through the stack 12 generally in parallel with the plane of the girders 20.
  • each channel a rod 28 is slidably mounted and in compressed and strapped state of pack projecting from both fronts 15, 17 thereof.
  • Each rod 28 is at one end thereof'prpvided with a thin head preventing the adjacent front plate 15, 17 to slide beyond the end of the rod 28.
  • the heads 30 of the two rods 28 are located at opposite fronts 15, 17 of the pack.
  • the rods 28 further guarantee that the plates of the pack 10 do not move in transverse direction during the transport of the pack from the workshop to the erection site owing to mishaps or careless handling.
  • support members 14 also facilitate the removal of the plates (for instance for replacement) even though measures must be taken to keep the plates together before they are entirely outside the chamber.
  • the thickness of the lift element 24 is smaller than the distance between the middle planes of adjacent plates so that the lift element does not appreciably affects the homogeneity of the stack.
  • a pack of rectangular element plates for rotary regenerative heat exchangers which have a cylindrical regenerator body including radial and circumferential division plates defining walls of sectorial compartments of the regenerator body, said pack of rectangular element plates comprising:
  • a stack of plates which are profiled to form openended passages for the heat exchanging fluids, and have a first pair of opposite edges forming two parallel end surfaces of the stack between which the open-ended passages extend and a second pair of opposite edges forming together with faces of the outermost plates side surfaces of the stack exposed to the walls of the sectorial compartment;
  • a support member comprising a frame structure supportingly engaging one of said parallel end surfaces of the stack of plates and exposing the side surfaces of the stack;
  • At least one elongated lift element secured to said frame structure and extending through the stack between two adjacent plates, the free end of said lift element being accessible at the other of said parallel end surfaces and having means adapted to be engaged by a hoisting device, said plates of the stack when positioned in a sectorial compartment being held together and to said lift element by the walls of said sectorial compartment and said frame structure, respectively.
  • each plate is provided with at least one hole therein, said holes registering with each other to form a channel through the stack generally perpendicular to said open-ended passages, said channel enclosing a rod slidably 10.
  • a pack as defined in claim 13 wherein said means engaging said plates comprises at least one rod extending through substantially aligned apertures in said plates.
  • a pack as defined in claim 13 comprising a pair of said rods, each extending through a plurality of said plates from respective opposite ends of said pack.
  • a pack of rectangular element plates for rotary regenerative heat exchangers having walled sectorial compartments comprising:
  • At least one elongated lift element secured to the frame structure said lift element having a length so as to extend from the frame structure and to project beyond the plates when the plates are supported on the frame structure, said plates of the stack ,when positioned in a sectorial compartment being held together and to said lift element by the walls of said sectorial compartment and said frame structure, respectively.
  • a pack as defined in claim 16 wherein said means engaging said plates comprises at least one rod extending through substantially aligned apertures in said plates.
  • a pack as defined in claim 16 comprising a pair of said rods, each extending through a plurality of said plates from respective opposite ends of said pack.

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)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Packages (AREA)
US331245A 1972-02-16 1973-02-09 Pack of heat absorbing material and a support member therefor Expired - Lifetime US3874442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB714372A GB1401622A (en) 1972-02-16 1972-02-16 Heat exchangers

Publications (1)

Publication Number Publication Date
US3874442A true US3874442A (en) 1975-04-01

Family

ID=9827437

Family Applications (1)

Application Number Title Priority Date Filing Date
US331245A Expired - Lifetime US3874442A (en) 1972-02-16 1973-02-09 Pack of heat absorbing material and a support member therefor

Country Status (14)

Country Link
US (1) US3874442A (sv)
JP (1) JPS581359B2 (sv)
CA (1) CA998385A (sv)
CS (1) CS169835B2 (sv)
DE (2) DE2307364C2 (sv)
ES (1) ES411643A1 (sv)
FR (1) FR2172302B1 (sv)
GB (1) GB1401622A (sv)
IN (1) IN138082B (sv)
IT (1) IT978646B (sv)
NL (1) NL7302009A (sv)
PL (1) PL82426B1 (sv)
SE (1) SE413695B (sv)
ZA (1) ZA73661B (sv)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996997A (en) * 1975-12-22 1976-12-14 Combustion Engineering, Inc. Tightening of heating elements of a regenerative air heater
US4182402A (en) * 1976-11-19 1980-01-08 Balcke-Durr Aktiengesellschaft Rotary regenerative air heater
US4209060A (en) * 1977-09-16 1980-06-24 Lars Wiking Pack, comprising a stack of abutting rectangular plates, intended for a regenerative heat exchanger, and a method of manufacturing such a pack
US4259844A (en) * 1979-07-30 1981-04-07 Helix Technology Corporation Stacked disc heat exchanger for refrigerator cold finger
US4383573A (en) * 1982-01-28 1983-05-17 Combustion Engineering, Inc. Rotary regenerative air heater
US4557318A (en) * 1983-12-01 1985-12-10 The Air Preheater Company, Inc. Means for lifting heating element baskets
US4739822A (en) * 1987-08-11 1988-04-26 Combustion Engineering, Inc. Low profile element basket assembly for heat exchanger
WO2000045101A2 (de) 1999-01-28 2000-08-03 Ahead Power Tech Gmbh Wärmetauscherpaket für regenerative wärmetauscher mit integrierter korrosionsresistenter kalt-end-lage
US6405789B1 (en) * 2001-05-10 2002-06-18 Alstom Power N.V. Combined basket removal door and platform for air preheaters
US20030183365A1 (en) * 2000-01-19 2003-10-02 Hamilton John A Rotary regenerative heat exchanger and rotor therefor
US20140246793A1 (en) * 2008-12-19 2014-09-04 Spx Cooling Technologies, Inc. Fill pack assembly and method with bonded sheet pairs
US20190353432A1 (en) * 2018-05-18 2019-11-21 HLB Life Science CO.,LTD. Apparatus for filling heat storage material

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523890A (en) * 1978-09-13 1980-02-20 Wiking Lars Denses densely stratified oblong plata assembly for regenerative heat exchanger and method of making said assembly
US4307774A (en) * 1980-11-20 1981-12-29 Konstantins Dravnieks Heat wheel construction
US4561492A (en) * 1985-01-22 1985-12-31 The Air Preheater Company, Inc. Element basket assembly for heat exchanger
DE19528634A1 (de) * 1995-08-04 1997-02-06 Rothemuehle Brandt Kritzler Heizblechpaket für Regenerativ-Wärmetauscher
SE9503241D0 (sv) * 1995-09-26 1995-09-26 Tetra Laval Holdings & Finance Plattvärmeväxlare
US5664620A (en) * 1996-07-18 1997-09-09 Abb Air Preheater Inc. Rotary regenerative heat exchanger
US5740856A (en) * 1997-04-28 1998-04-21 Abb Air Preheater Inc. Rotary regenerative heat exchanger with multiple layer baskets

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432198A (en) * 1945-01-12 1947-12-09 Air Preheater Heat exchange surface for air preheaters
US2549583A (en) * 1944-05-08 1951-04-17 Air Preheater Regenerative heat exchanging apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB849674A (en) * 1956-02-28 1960-09-28 Svenska Rotor Maskiner Ab Improvements in rotary regenerative heat exchangers
BE668706A (sv) * 1964-08-25 1965-12-16
GB1103207A (en) * 1965-01-08 1968-02-14 Svenska Rotor Maskiner Ab A regenerative heat exchanger matrix
DE1247360B (de) * 1965-08-12 1967-08-17 Kraftanlagen Ag Heizblechpaket fuer umlaufende Regenerativ-Waermetauscher
US3379240A (en) * 1967-04-11 1968-04-23 Air Preheater Element basket for regenerative heat exchangers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549583A (en) * 1944-05-08 1951-04-17 Air Preheater Regenerative heat exchanging apparatus
US2432198A (en) * 1945-01-12 1947-12-09 Air Preheater Heat exchange surface for air preheaters

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996997A (en) * 1975-12-22 1976-12-14 Combustion Engineering, Inc. Tightening of heating elements of a regenerative air heater
US4182402A (en) * 1976-11-19 1980-01-08 Balcke-Durr Aktiengesellschaft Rotary regenerative air heater
US4209060A (en) * 1977-09-16 1980-06-24 Lars Wiking Pack, comprising a stack of abutting rectangular plates, intended for a regenerative heat exchanger, and a method of manufacturing such a pack
US4259844A (en) * 1979-07-30 1981-04-07 Helix Technology Corporation Stacked disc heat exchanger for refrigerator cold finger
US4383573A (en) * 1982-01-28 1983-05-17 Combustion Engineering, Inc. Rotary regenerative air heater
US4557318A (en) * 1983-12-01 1985-12-10 The Air Preheater Company, Inc. Means for lifting heating element baskets
US4739822A (en) * 1987-08-11 1988-04-26 Combustion Engineering, Inc. Low profile element basket assembly for heat exchanger
WO1989001598A1 (en) * 1987-08-11 1989-02-23 The Air Preheater Company, Inc. Low profile element basket assembly for heat exchanger
WO2000045101A2 (de) 1999-01-28 2000-08-03 Ahead Power Tech Gmbh Wärmetauscherpaket für regenerative wärmetauscher mit integrierter korrosionsresistenter kalt-end-lage
WO2000045101A3 (de) * 1999-01-28 2000-09-28 Ahead Power Tech Gmbh Wärmetauscherpaket für regenerative wärmetauscher mit integrierter korrosionsresistenter kalt-end-lage
US20030183365A1 (en) * 2000-01-19 2003-10-02 Hamilton John A Rotary regenerative heat exchanger and rotor therefor
US7082987B2 (en) * 2000-01-19 2006-08-01 Howden Power Limited Rotary regenerative heat exchanger and rotor therefor
US6405789B1 (en) * 2001-05-10 2002-06-18 Alstom Power N.V. Combined basket removal door and platform for air preheaters
US20140246793A1 (en) * 2008-12-19 2014-09-04 Spx Cooling Technologies, Inc. Fill pack assembly and method with bonded sheet pairs
US20190353432A1 (en) * 2018-05-18 2019-11-21 HLB Life Science CO.,LTD. Apparatus for filling heat storage material

Also Published As

Publication number Publication date
DE2307364C2 (de) 1982-07-29
JPS4890040A (sv) 1973-11-24
ES411643A1 (es) 1976-01-01
CA998385A (en) 1976-10-12
CS169835B2 (sv) 1976-07-29
GB1401622A (en) 1975-07-16
FR2172302A1 (sv) 1973-09-28
AU5171473A (en) 1974-08-08
IT978646B (it) 1974-09-20
PL82426B1 (sv) 1975-10-31
IN138082B (sv) 1975-11-29
FR2172302B1 (sv) 1977-04-29
DE2366476C2 (de) 1984-06-20
JPS581359B2 (ja) 1983-01-11
ZA73661B (en) 1973-11-28
DE2307364A1 (de) 1973-08-23
SE413695B (sv) 1980-06-16
NL7302009A (sv) 1973-08-20

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