GB941571A - An improved method of utilising the waste heat of furnace gases - Google Patents

An improved method of utilising the waste heat of furnace gases

Info

Publication number
GB941571A
GB941571A GB391/59A GB39159A GB941571A GB 941571 A GB941571 A GB 941571A GB 391/59 A GB391/59 A GB 391/59A GB 39159 A GB39159 A GB 39159A GB 941571 A GB941571 A GB 941571A
Authority
GB
United Kingdom
Prior art keywords
heat
air
gas
temperature
heat exchanger
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
Application number
GB391/59A
Inventor
John Richard Rylands
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.)
E Green and Son Ltd
Original Assignee
E Green and Son Ltd
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 E Green and Son Ltd filed Critical E Green and Son Ltd
Priority to GB391/59A priority Critical patent/GB941571A/en
Publication of GB941571A publication Critical patent/GB941571A/en
Expired legal-status Critical Current

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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1869—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1892—Systems therefor not provided for in F22B1/1807 - F22B1/1861
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/36—Water and air preheating systems
    • F22D1/38—Constructional features of water and air preheating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air Supply (AREA)

Abstract

941,571. Heating air. E. GREEN & SON Ltd. Jan. 26, 1960 [Jan. 5, 1959], No. 391/59. Heading F4S. In a method of utilizing the waste heat of furnace gases to heat air, the gases are passed first through a main air heater 2 in which the air absorbs heat from the gases at gas temperatures above 260‹ F., and then through one or more heat exchangers 3, 4 in which heat is transferred through a circulating heat transfer medium such as water, the or each heat exchanger 3, 4 being operated so that the temperature of its gas-swept surface is always either within the range of from 120‹ F. to 220‹ F., or above 260‹ F., and so that the air is sufficiently preheated before it enters the main heater 2 as to ensure that the main heater operates with the whole of its gas-swept surface at a temperature above 260‹ F. The temperature of the gas swept surfaces of the auxiliary heat exchanger or heat exchangers is hence not permitted under operating conditions to lie within the temperature ranges at which socalled " wet corrosion " or " acid corrosion " are most likely to occur. In a typical example, the temperatures of the gas swept surfaces of the heat exchangers 3, 4 may, as indicated on the drawing, lie in the ranges 270‹ to 320‹ F. for the heat exchanger 3 and 130‹ to 200‹ F. for the heat exchanger 4. The apparatus shown includes a feed water economizer 1 over which the furnace gases flow before passing over the air heaters. The ducts containing the heat receiving and heat emitting components of the air heaters 3, 4 may (as shown) be completely separate one from the other or they may have a common separating wall. In another form described, a gas duct may be sandwiched between two parallel connected air ducts.
GB391/59A 1959-01-05 1959-01-05 An improved method of utilising the waste heat of furnace gases Expired GB941571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB391/59A GB941571A (en) 1959-01-05 1959-01-05 An improved method of utilising the waste heat of furnace gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB391/59A GB941571A (en) 1959-01-05 1959-01-05 An improved method of utilising the waste heat of furnace gases

Publications (1)

Publication Number Publication Date
GB941571A true GB941571A (en) 1963-11-13

Family

ID=9703582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB391/59A Expired GB941571A (en) 1959-01-05 1959-01-05 An improved method of utilising the waste heat of furnace gases

Country Status (1)

Country Link
GB (1) GB941571A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362149A (en) * 1980-12-08 1982-12-07 Rockwell International Corporation Heat storage system and method
FR2545197A1 (en) * 1983-04-26 1984-11-02 Lipets Adolf Corrosion-resistant multiple heating-body air heater
US20140007823A1 (en) * 2011-03-16 2014-01-09 Shanghai Fubo Ep Equipment Co., Ltd. Heating system for heating heat-transfer oil usingboiler flue gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362149A (en) * 1980-12-08 1982-12-07 Rockwell International Corporation Heat storage system and method
FR2545197A1 (en) * 1983-04-26 1984-11-02 Lipets Adolf Corrosion-resistant multiple heating-body air heater
US20140007823A1 (en) * 2011-03-16 2014-01-09 Shanghai Fubo Ep Equipment Co., Ltd. Heating system for heating heat-transfer oil usingboiler flue gas

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