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WO1993019339A3 - Modifications to air heaters - Google Patents

Modifications to air heaters Download PDF

Info

Publication number
WO1993019339A3
WO1993019339A3 PCT/GB1993/000528 GB9300528W WO9319339A3 WO 1993019339 A3 WO1993019339 A3 WO 1993019339A3 GB 9300528 W GB9300528 W GB 9300528W WO 9319339 A3 WO9319339 A3 WO 9319339A3
Authority
WO
WIPO (PCT)
Prior art keywords
plates
rotor
radial
casing
air
Prior art date
Application number
PCT/GB1993/000528
Other languages
French (fr)
Other versions
WO1993019339A2 (en
Inventor
Nigel Keith Francis
Original Assignee
Wes Technology 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 Wes Technology Inc filed Critical Wes Technology Inc
Priority to GB9418873A priority Critical patent/GB2280017A/en
Publication of WO1993019339A2 publication Critical patent/WO1993019339A2/en
Publication of WO1993019339A3 publication Critical patent/WO1993019339A3/en

Links

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)

Abstract

A regenerative rotary air heater, comprising a generally circular rotor (1) arranged to rotate in a cylindrical casing (2), which casing has an air inlet (3) and an air outlet (5) for combustion air to be preheated and has a gas inlet (6) and a gas outlet (4) for exhaust gas, the rotor (1) being constructed with radial plates (8) having radial seals, wherein top and bottom sector plates (10, 11) are provided to separate air and gas sides of the casing (2), and wherein the air heater has one or more of the following features: 1) balance weights (14, 19) provided to enable hinged sector plates (10, 11) to follow rotor deformation; 2) the top and/or bottom sector plates (10, 11) are provided with extensions (21) so that the number of radial seals in contact with the sector plates is increased; 3) circumferential sub-division plates (9) provided beteween the radial plates (8) extend the full height of the radial plates and are sealed against the sector plates (10, 11); 4) circumferential seals between the rotor (1) and the casing (2) comprise a seal mounting bar (24) inclined at a suitable angle to a seat (22) and a seal (23) secured to the mounting bar (24); 5) hinged top and bottom sector plates (10, 11) are connected by rigid links (31) to adjust and maintain the rotor/sector plate gap.
PCT/GB1993/000528 1992-03-20 1993-03-15 Modifications to air heaters WO1993019339A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9418873A GB2280017A (en) 1992-03-20 1993-03-15 Modifications to air heaters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9206136.5 1992-03-20
GB929206136A GB9206136D0 (en) 1992-03-20 1992-03-20 Modifications to air heaters

Publications (2)

Publication Number Publication Date
WO1993019339A2 WO1993019339A2 (en) 1993-09-30
WO1993019339A3 true WO1993019339A3 (en) 1993-11-11

Family

ID=10712542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000528 WO1993019339A2 (en) 1992-03-20 1993-03-15 Modifications to air heaters

Country Status (2)

Country Link
GB (2) GB9206136D0 (en)
WO (1) WO1993019339A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288009A (en) * 1994-03-31 1995-10-04 Wes Technology Inc Sealing in rotary regenerative heaters
SE504008C2 (en) * 1995-02-10 1996-10-14 Ljungstroem Technology Ab Rotary, regenerative heat exchanger where the clearance between sector plate and rotor is maintained with the help of a gas cushion, and ways to operate such a heat exchanger
SE504019C2 (en) * 1995-02-24 1996-10-21 Ljungstroem Technology Ab Rotating regenerative heat exchanger and ways to control such a heat exchanger
US7082987B2 (en) 2000-01-19 2006-08-01 Howden Power Limited Rotary regenerative heat exchanger and rotor therefor
GB2358698A (en) * 2000-01-19 2001-08-01 Howden Sirocco Ltd Rotary regenerative heat exchanger and rotor with primary and secondary vanes
US6227150B1 (en) * 2000-04-03 2001-05-08 Abb Air Preheater, Inc. Load based control system for active leakage control in air preheater
EP2023070B1 (en) 2007-07-24 2011-05-04 Balcke-Dürr GmbH Regenerative heat exchanger and radial seal for use for such and method for separating gaseous media in a regenerative heat exchanger
DE102008051813A1 (en) * 2008-10-15 2010-04-29 Gea Air Treatment Gmbh Device for heat recovery of heat energy present in air by rotational heat exchanger, has rotating heat wheel which is arranged in exhaust air- and air supply duct and air stream flows through heat wheel
DE102015015134A1 (en) * 2015-11-23 2017-05-24 Balcke-Dürr GmbH Regenerative heat exchanger and power plant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650074A (en) * 1950-10-12 1953-08-25 Air Preheater Spring or gravity biased radial seal
US3166118A (en) * 1960-03-02 1965-01-19 Koch Jakob Rotor end sealing means for rotary regenerative heat exchangers
DE1190599B (en) * 1963-02-20 1965-04-08 Kraftanlagen Ag Radial seal for circumferential regenerative air preheater
US3373797A (en) * 1965-11-29 1968-03-19 Svenska Rotor Maskiner Ab Regenerative heat exchanger
US4124063A (en) * 1977-08-19 1978-11-07 The Air Preheater Company, Inc. Sector plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650074A (en) * 1950-10-12 1953-08-25 Air Preheater Spring or gravity biased radial seal
US3166118A (en) * 1960-03-02 1965-01-19 Koch Jakob Rotor end sealing means for rotary regenerative heat exchangers
DE1190599B (en) * 1963-02-20 1965-04-08 Kraftanlagen Ag Radial seal for circumferential regenerative air preheater
US3373797A (en) * 1965-11-29 1968-03-19 Svenska Rotor Maskiner Ab Regenerative heat exchanger
US4124063A (en) * 1977-08-19 1978-11-07 The Air Preheater Company, Inc. Sector plate

Also Published As

Publication number Publication date
GB2280017A (en) 1995-01-18
WO1993019339A2 (en) 1993-09-30
GB9418873D0 (en) 1994-11-09
GB9206136D0 (en) 1992-05-06

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