US20090056705A1 - Combustion system - Google Patents

Combustion system Download PDF

Info

Publication number
US20090056705A1
US20090056705A1 US11/847,567 US84756707A US2009056705A1 US 20090056705 A1 US20090056705 A1 US 20090056705A1 US 84756707 A US84756707 A US 84756707A US 2009056705 A1 US2009056705 A1 US 2009056705A1
Authority
US
United States
Prior art keywords
chamber
heat exchanger
plenum
combustion
combustion chamber
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.)
Abandoned
Application number
US11/847,567
Inventor
Jung-Lang Lin
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.)
Suncue Co Ltd
Original Assignee
Suncue Co 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 Suncue Co Ltd filed Critical Suncue Co Ltd
Priority to US11/847,567 priority Critical patent/US20090056705A1/en
Assigned to SUNCUE COMPANY LTD reassignment SUNCUE COMPANY LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIN, JUNG-LANG
Publication of US20090056705A1 publication Critical patent/US20090056705A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/088—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0084—Combustion air preheating
    • F24H9/0089—Combustion air preheating by double wall boiler mantle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/028—Heating arrangements using combustion heating using solid fuel; burning the dried product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/20—Waste heat recuperation using the heat in association with another installation
    • F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste

Definitions

  • This invention relates to a combustion system, more particularly to a combustion system including a heat exchanger separated from a furnace.
  • U.S. Pat. No. 4,449,510 discloses a heat exchanger furnace that includes a furnace housing defining a combustion chamber therein, a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and a number of exhaust tubes disposed in the plenum chamber.
  • a combustion gas from the combustion chamber of the furnace housing flows through the exhaust tubes along a serpentine path and into a stack. Meanwhile, ambient air passes into the plenum chamber, and is heated by contacting heat transfer surfaces of the combustion chamber and the exhaust tubes.
  • the heat exchanger furnace thus arranged, i.e., the plenum chamber surrounds the furnace housing and the exhaust tubes are disposed within the plenum chamber, has a relatively poor heat exchanging efficiency between the exhaust gas and the heat exchanging air.
  • the object of the present invention is to provide a combustion system that can overcome the aforesaid drawback associated with the prior art.
  • a combustion system comprises: a furnace including a furnace housing defining a combustion chamber therein and having a gas outlet in fluid communication with the combustion chamber; a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and having an air inlet and an air outlet which are in fluid communication with the plenum chamber; and a heat exchanger having a heat exchanger housing disposed outwardly of the plenum housing, defining a heat exchanger chamber, and having an air inlet in fluid communication with the air outlet of the plenum housing, an air outlet, a gas inlet in fluid communication with the gas outlet of the furnace housing, and a gas outlet.
  • the heat exchanger further has a tube-bundled structure disposed in the heat exchanger chamber and defining a plurality of passageways extending between and permitting fluid communication between the gas inlet and the gas outlet of the heat exchanger housing.
  • FIG. 1 is a schematic view of a combustion system embodying this invention.
  • FIG. 1 illustrates the preferred embodiment of a combustion system according to this invention for combustion of solid waste, such as hull or shell waste of agricultural crops.
  • the combustion system includes: a furnace 10 including a furnace housing 11 defining a combustion chamber 111 therein and having a gas outlet 112 in fluid communication with the combustion chamber 111 ; a plenum housing 61 surrounding and cooperating with the furnace housing 11 to define a plenum chamber 601 therebetween, and having an air inlet 611 and an air outlet 603 which are in fluid communication with the plenum chamber 601 ; and a heat exchanger 50 having a heat exchanger housing 51 disposed outwardly of the plenum housing 61 , defining a heat exchanger chamber 511 , and having an air inlet 501 in fluid communication with the air outlet 603 of the plenum housing 61 , an air outlet 502 , a gas inlet 503 in fluid communication with the gas outlet 112 of the furnace housing 11 , a gas outlet 504 .
  • the heat exchanger 50 further has a tube-bundled structure 3 disposed in the heat exchanger chamber 511 and having a plurality of exhaust tubes 31 which define a plurality of passageways 30 extending between and permitting fluid communication between the gas inlet 503 and the gas outlet 504 of the heat exchanger housing 51 .
  • the heat exchanger 50 further has a plurality of baffles 64 dividing the heat exchanger chamber 511 into a plurality of sections 5111 which are connected to form a tortuous path extending between the air inlet 501 and the air outlet 502 of the heat exchanger housing 51 .
  • a manifold 22 interconnects the gas outlet 112 of the furnace housing 11 and the gas inlet 503 of the heat exchanger housing 51 , and extends through the air inlet 611 of the plenum housing 61 .
  • the combustion gas generated from the combustion chamber 111 passes through the manifold 22 and into the exhaust tubes 31 of the tube-bundled structure 3 and then into a cyclone 23 connected to the gas outlet 504 of the heat exchanger housing 51 and finally into a stack 8 connected to the cyclone 23 for emission of the combustion gas.
  • an air blower 242 is disposed downstream of the air outlet 502 of the heat exchanger housing 51 for introducing ambient fresh air via the air inlet 611 of the plenum housing 61 into the plenum chamber 601 .
  • the introduced air flows around the furnace housing 11 for conducting a preliminary heat exchange, and then flows into the heat exchanger chamber 511 in a sinuous path across the exhaust tubes 31 of the tube-bundled structure 3 for conducting a primary heat exchange.
  • the heated air is then delivered into a crop dryer 7 for drying crops stored therein.
  • the heat exchanger 50 By disposing the heat exchanger 50 outwardly of the plenum housing 61 of the combustion system of this invention, the heat exchanging efficiency between the introduced air and the exhaust gas can be considerably improved as compared to the aforesaid conventional heat exchanger furnace.

Abstract

A combustion system includes: a furnace housing defining a combustion chamber therein and having a gas outlet in fluid communication with the combustion chamber; a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and having an air inlet and an air outlet which are in fluid communication with the plenum chamber; and a heat exchanger housing disposed outwardly of the plenum housing and having an air inlet in fluid communication with the air outlet of the plenum housing, an air outlet, a gas inlet in fluid communication with the gas outlet of the furnace housing, and a gas outlet.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates to a combustion system, more particularly to a combustion system including a heat exchanger separated from a furnace.
  • 2. Description of Related Art
  • U.S. Pat. No. 4,449,510 discloses a heat exchanger furnace that includes a furnace housing defining a combustion chamber therein, a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and a number of exhaust tubes disposed in the plenum chamber. A combustion gas from the combustion chamber of the furnace housing flows through the exhaust tubes along a serpentine path and into a stack. Meanwhile, ambient air passes into the plenum chamber, and is heated by contacting heat transfer surfaces of the combustion chamber and the exhaust tubes. However, the heat exchanger furnace thus arranged, i.e., the plenum chamber surrounds the furnace housing and the exhaust tubes are disposed within the plenum chamber, has a relatively poor heat exchanging efficiency between the exhaust gas and the heat exchanging air.
    • SUMMARY OF THE INVENTION
  • Therefore, the object of the present invention is to provide a combustion system that can overcome the aforesaid drawback associated with the prior art.
  • According to the present invention, a combustion system comprises: a furnace including a furnace housing defining a combustion chamber therein and having a gas outlet in fluid communication with the combustion chamber; a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and having an air inlet and an air outlet which are in fluid communication with the plenum chamber; and a heat exchanger having a heat exchanger housing disposed outwardly of the plenum housing, defining a heat exchanger chamber, and having an air inlet in fluid communication with the air outlet of the plenum housing, an air outlet, a gas inlet in fluid communication with the gas outlet of the furnace housing, and a gas outlet. The heat exchanger further has a tube-bundled structure disposed in the heat exchanger chamber and defining a plurality of passageways extending between and permitting fluid communication between the gas inlet and the gas outlet of the heat exchanger housing.
    • BRIEF DESCRIPTION OF THE DRAWING
  • In a drawing which illustrate an embodiment of the invention,
  • FIG. 1 is a schematic view of a combustion system embodying this invention.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 illustrates the preferred embodiment of a combustion system according to this invention for combustion of solid waste, such as hull or shell waste of agricultural crops.
  • The combustion system includes: a furnace 10 including a furnace housing 11 defining a combustion chamber 111 therein and having a gas outlet 112 in fluid communication with the combustion chamber 111; a plenum housing 61 surrounding and cooperating with the furnace housing 11 to define a plenum chamber 601 therebetween, and having an air inlet 611 and an air outlet 603 which are in fluid communication with the plenum chamber 601; and a heat exchanger 50 having a heat exchanger housing 51 disposed outwardly of the plenum housing 61, defining a heat exchanger chamber 511, and having an air inlet 501 in fluid communication with the air outlet 603 of the plenum housing 61, an air outlet 502, a gas inlet 503 in fluid communication with the gas outlet 112 of the furnace housing 11, a gas outlet 504. The heat exchanger 50 further has a tube-bundled structure 3 disposed in the heat exchanger chamber 511 and having a plurality of exhaust tubes 31 which define a plurality of passageways 30 extending between and permitting fluid communication between the gas inlet 503 and the gas outlet 504 of the heat exchanger housing 51.
  • The heat exchanger 50 further has a plurality of baffles 64 dividing the heat exchanger chamber 511 into a plurality of sections 5111 which are connected to form a tortuous path extending between the air inlet 501 and the air outlet 502 of the heat exchanger housing 51.
  • A manifold 22 interconnects the gas outlet 112 of the furnace housing 11 and the gas inlet 503 of the heat exchanger housing 51, and extends through the air inlet 611 of the plenum housing 61.
  • During combustion of the solid waste, the combustion gas generated from the combustion chamber 111 passes through the manifold 22 and into the exhaust tubes 31 of the tube-bundled structure 3 and then into a cyclone 23 connected to the gas outlet 504 of the heat exchanger housing 51 and finally into a stack 8 connected to the cyclone 23 for emission of the combustion gas. Meanwhile, an air blower 242 is disposed downstream of the air outlet 502 of the heat exchanger housing 51 for introducing ambient fresh air via the air inlet 611 of the plenum housing 61 into the plenum chamber 601. The introduced air flows around the furnace housing 11 for conducting a preliminary heat exchange, and then flows into the heat exchanger chamber 511 in a sinuous path across the exhaust tubes 31 of the tube-bundled structure 3 for conducting a primary heat exchange. The heated air is then delivered into a crop dryer 7 for drying crops stored therein.
  • By disposing the heat exchanger 50 outwardly of the plenum housing 61 of the combustion system of this invention, the heat exchanging efficiency between the introduced air and the exhaust gas can be considerably improved as compared to the aforesaid conventional heat exchanger furnace.
  • While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.

Claims (3)

1-3. (canceled)
4. A combustion system comprising:
a furnace defining a combustion chamber that has a gas outlet disposed at a top end of said combustion chamber;
a plenum housing defining a plenum chamber that receives said combustion chamber and that has a top end extending above said top end of said combustion chamber, a bottom end extending below said combustion chamber, an air inlet provided in a space between said top end of said combustion chamber and said top end of said plenum chamber and having an open end adapted for communication with ambient air, and an air outlet proximate to said bottom end of said plenum chamber;
a heat exchanger defining a heat exchanger chamber disposed on one side of said combustion chamber and having a top end lower than said top end of said plenum chamber, an air inlet disposed in one side of said heat exchanger chamber proximate to said combustion chamber and communicated fluidly with said air outlet of said plenum chamber, an air outlet proximate to said top end of said heat exchanger chamber and disposed in the other side of said heat exchanger chamber opposite to said combustion chamber, and a gas inlet and a gas outlet both of which are disposed at said top end of said heat exchanger chamber, said heat exchanger chamber further having a tube-bundled structure disposed in said heat exchanger chamber and having a plurality of exhaust tubes each of which defines a passageway that connects to and that extends downward from said gas inlet of said heat exchanger chamber and turns upward at a bottom end of said heat exchanger chamber to connect to said gas outlet of said heat exchanger chamber; and
a manifold extending above said combustion chamber and said heat exchanger chamber, and extending through said air inlet of said plenum chamber, said manifold having one end connected to said gas outlet of said combustion chamber and the other end extending through said open end of said air inlet of said plenum chamber and connected to said gas inlet of said heat exchanger chamber.
5. The combustion system of claim 4, wherein said heat exchanger further has a plurality of baffles dividing said heat exchanger chamber into a plurality of sections which are connected to form a tortuous path extending between said air inlet and said air outlet of said heat exchanger chamber.
US11/847,567 2007-08-30 2007-08-30 Combustion system Abandoned US20090056705A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/847,567 US20090056705A1 (en) 2007-08-30 2007-08-30 Combustion system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/847,567 US20090056705A1 (en) 2007-08-30 2007-08-30 Combustion system

Publications (1)

Publication Number Publication Date
US20090056705A1 true US20090056705A1 (en) 2009-03-05

Family

ID=40405502

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/847,567 Abandoned US20090056705A1 (en) 2007-08-30 2007-08-30 Combustion system

Country Status (1)

Country Link
US (1) US20090056705A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061776A (en) * 2014-06-24 2014-09-24 广西壮族自治区桂林茶叶科学研究所 Hot-gas generating device for drying tea leaves
EP2541141A3 (en) * 2011-07-01 2016-07-20 LASCO Heutechnik GmbH Mobile solid-fuel combustion device

Citations (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2113607A (en) * 1934-12-11 1938-04-12 Upton John Space heater
US2348569A (en) * 1941-12-30 1944-05-09 Otto A Peters Hot-air furnace
US2357831A (en) * 1941-05-19 1944-09-12 Myrtle M Judy Hot-air furnace
US2575894A (en) * 1948-04-09 1951-11-20 John I Shireman Air circulating apparatus
US3454267A (en) * 1967-12-13 1969-07-08 Inland Steel Co High performance blast furnace stoves
US3472631A (en) * 1966-04-25 1969-10-14 Robert H Schober Apparatus for carrying out exothermic catalytic gas reactions
US3477701A (en) * 1966-04-16 1969-11-11 Nippon Kokan Kk Hot-blast stoves
US3764260A (en) * 1972-08-15 1973-10-09 Bethlehem Steel Corp Blast furnace stove
US3806313A (en) * 1971-11-19 1974-04-23 Hoogovens Ijmuiden Bv Heat regenerator
US3813039A (en) * 1973-03-26 1974-05-28 G Wells Heat exchanger
US3837793A (en) * 1971-05-10 1974-09-24 Koninklijke Hoogovens En Staal Ceramic burner for use in an air-preheater or hot blast stove for a blast furnace plant
US4022573A (en) * 1974-09-20 1977-05-10 S.A. Des Anciens Etablissements Paul Wurth Hot blast stove and method of operation
US4044820A (en) * 1976-05-24 1977-08-30 Econo-Therm Energy Systems Corporation Method and apparatus for preheating combustion air while cooling a hot process gas
US4145033A (en) * 1974-09-20 1979-03-20 S.A. Des Anciens Etablissements Paul Wurth Hot blast stove and method of operation
US4217878A (en) * 1979-03-29 1980-08-19 Wieweck Gregory J Biomass fueled furnace
US4228783A (en) * 1977-10-21 1980-10-21 Kalenian Paul A Combustion heater
US4235593A (en) * 1979-03-27 1980-11-25 Republic Steel Corporation Blast stove
US4290751A (en) * 1979-11-08 1981-09-22 Republic Steel Corporation Blast furnace stove
US4311456A (en) * 1980-07-18 1982-01-19 Bricmont & Associates, Inc. Blast furnace stove
US4319557A (en) * 1980-08-08 1982-03-16 Sietmann Vernon H Heat exchanger furnace
US4353688A (en) * 1981-03-12 1982-10-12 United States Steel Corporation Baffle structure for blast furnace stove
US4369954A (en) * 1979-07-21 1983-01-25 Didier-Werke Ag Regenerative air preheater with improved insulation between combustion chamber and checker shaft
US4408567A (en) * 1981-02-03 1983-10-11 Morton Michael S Furnace construction
US4419075A (en) * 1981-11-19 1983-12-06 Koppers Company, Inc. Blast furnace stove wall
US4449510A (en) * 1983-04-14 1984-05-22 Sukup Eugene G Biomass heat exchanger furnace
US4478206A (en) * 1984-01-05 1984-10-23 Intertherm Inc. Furnace having water vapor-condensing secondary heat exchanger
US4579102A (en) * 1983-04-14 1986-04-01 Sukup Eugene G Biomass heat exchanger furnace
US4582485A (en) * 1985-02-13 1986-04-15 White Jr Herbert A Blast furnace stove
US4699317A (en) * 1984-04-18 1987-10-13 Temperature Adjusters, Inc. Heat exchanger flue
US4735130A (en) * 1986-11-12 1988-04-05 Seppamaki John W Fresh air make-up apparatus
US5239980A (en) * 1992-05-19 1993-08-31 Hilt Fay E J Forced air furnace control system and method of operation
US5273209A (en) * 1992-03-23 1993-12-28 Macarthur Charles E Heat exchange and fuel feed apparatus for vertical furnace
US20040222574A1 (en) * 2004-04-05 2004-11-11 Michael Friedrich Preheating cold blast air of a blast furnace for tempering the hot blast temperature

Patent Citations (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2113607A (en) * 1934-12-11 1938-04-12 Upton John Space heater
US2357831A (en) * 1941-05-19 1944-09-12 Myrtle M Judy Hot-air furnace
US2348569A (en) * 1941-12-30 1944-05-09 Otto A Peters Hot-air furnace
US2575894A (en) * 1948-04-09 1951-11-20 John I Shireman Air circulating apparatus
US3477701A (en) * 1966-04-16 1969-11-11 Nippon Kokan Kk Hot-blast stoves
US3472631A (en) * 1966-04-25 1969-10-14 Robert H Schober Apparatus for carrying out exothermic catalytic gas reactions
US3454267A (en) * 1967-12-13 1969-07-08 Inland Steel Co High performance blast furnace stoves
US3837793A (en) * 1971-05-10 1974-09-24 Koninklijke Hoogovens En Staal Ceramic burner for use in an air-preheater or hot blast stove for a blast furnace plant
US3806313A (en) * 1971-11-19 1974-04-23 Hoogovens Ijmuiden Bv Heat regenerator
US3764260A (en) * 1972-08-15 1973-10-09 Bethlehem Steel Corp Blast furnace stove
US3813039A (en) * 1973-03-26 1974-05-28 G Wells Heat exchanger
US4022573A (en) * 1974-09-20 1977-05-10 S.A. Des Anciens Etablissements Paul Wurth Hot blast stove and method of operation
US4145033A (en) * 1974-09-20 1979-03-20 S.A. Des Anciens Etablissements Paul Wurth Hot blast stove and method of operation
US4044820A (en) * 1976-05-24 1977-08-30 Econo-Therm Energy Systems Corporation Method and apparatus for preheating combustion air while cooling a hot process gas
US4228783A (en) * 1977-10-21 1980-10-21 Kalenian Paul A Combustion heater
US4235593A (en) * 1979-03-27 1980-11-25 Republic Steel Corporation Blast stove
US4217878A (en) * 1979-03-29 1980-08-19 Wieweck Gregory J Biomass fueled furnace
US4369954A (en) * 1979-07-21 1983-01-25 Didier-Werke Ag Regenerative air preheater with improved insulation between combustion chamber and checker shaft
US4290751A (en) * 1979-11-08 1981-09-22 Republic Steel Corporation Blast furnace stove
US4311456A (en) * 1980-07-18 1982-01-19 Bricmont & Associates, Inc. Blast furnace stove
US4319557A (en) * 1980-08-08 1982-03-16 Sietmann Vernon H Heat exchanger furnace
US4408567A (en) * 1981-02-03 1983-10-11 Morton Michael S Furnace construction
US4353688A (en) * 1981-03-12 1982-10-12 United States Steel Corporation Baffle structure for blast furnace stove
US4419075A (en) * 1981-11-19 1983-12-06 Koppers Company, Inc. Blast furnace stove wall
US4449510A (en) * 1983-04-14 1984-05-22 Sukup Eugene G Biomass heat exchanger furnace
US4579102A (en) * 1983-04-14 1986-04-01 Sukup Eugene G Biomass heat exchanger furnace
US4478206A (en) * 1984-01-05 1984-10-23 Intertherm Inc. Furnace having water vapor-condensing secondary heat exchanger
US4699317A (en) * 1984-04-18 1987-10-13 Temperature Adjusters, Inc. Heat exchanger flue
US4582485A (en) * 1985-02-13 1986-04-15 White Jr Herbert A Blast furnace stove
US4735130A (en) * 1986-11-12 1988-04-05 Seppamaki John W Fresh air make-up apparatus
US5273209A (en) * 1992-03-23 1993-12-28 Macarthur Charles E Heat exchange and fuel feed apparatus for vertical furnace
US5239980A (en) * 1992-05-19 1993-08-31 Hilt Fay E J Forced air furnace control system and method of operation
US20040222574A1 (en) * 2004-04-05 2004-11-11 Michael Friedrich Preheating cold blast air of a blast furnace for tempering the hot blast temperature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2541141A3 (en) * 2011-07-01 2016-07-20 LASCO Heutechnik GmbH Mobile solid-fuel combustion device
CN104061776A (en) * 2014-06-24 2014-09-24 广西壮族自治区桂林茶叶科学研究所 Hot-gas generating device for drying tea leaves

Similar Documents

Publication Publication Date Title
US7614366B2 (en) High efficiency water heater
US8783213B2 (en) Heat exchanger and water heater incorporating the same
US10753644B2 (en) Water heater
US6945197B2 (en) Water heater
US20160116228A1 (en) Water heater having secondary heat exchanger
US7823578B2 (en) High efficiency biomass stove
CN102288010B (en) Agricultural product drying machine with double functions of indirect and direct heating through hot air circulation
US8327810B2 (en) High efficiency water heater
US4449510A (en) Biomass heat exchanger furnace
US20090056705A1 (en) Combustion system
JP5589530B2 (en) Water heater
EP2012070A2 (en) Combustion system
US20070051359A1 (en) Looped system fuel-fired fluid heating/storage device
US7393206B2 (en) Heat exchange furnace with serpentine gas flow path disposed within heat exchange space
US7422429B2 (en) Heat exchange furnace and its manufacturing process
US4579102A (en) Biomass heat exchanger furnace
US20110067650A1 (en) Water heater module having detachable heat exchanger
KR200458544Y1 (en) Structure of heat exchanger of heater for agriculture
JP5076837B2 (en) Heat exchanger and hot water supply device
CN217357561U (en) Small-volume gas water heater
CN210463921U (en) Novel grain is dried device
CN211526462U (en) Biomass fuel boiler waste gas recycling device
JP2024032219A (en) boiler
CN201311075Y (en) Hot-blast stove with end gas residual heat withdrawer
US20190323729A1 (en) Heat exchanger for heating water

Legal Events

Date Code Title Description
AS Assignment

Owner name: SUNCUE COMPANY LTD, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, JUNG-LANG;REEL/FRAME:019768/0453

Effective date: 20070731

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION