CA2144493A1 - High Efficiency Fuel-Fired Condensing Furnace Having a Compact Heat Exchanger System - Google Patents

High Efficiency Fuel-Fired Condensing Furnace Having a Compact Heat Exchanger System

Info

Publication number
CA2144493A1
CA2144493A1 CA2144493A CA2144493A CA2144493A1 CA 2144493 A1 CA2144493 A1 CA 2144493A1 CA 2144493 A CA2144493 A CA 2144493A CA 2144493 A CA2144493 A CA 2144493A CA 2144493 A1 CA2144493 A1 CA 2144493A1
Authority
CA
Canada
Prior art keywords
heat exchanger
furnace
tubes
series
outlets
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.)
Granted
Application number
CA2144493A
Other languages
French (fr)
Other versions
CA2144493C (en
Inventor
Lin-Tao Lu
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.)
Rheem Manufacturing Co
Original Assignee
Rheem Manufacturing Co
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
Priority claimed from US08/210,056 external-priority patent/US5406933A/en
Application filed by Rheem Manufacturing Co filed Critical Rheem Manufacturing Co
Publication of CA2144493A1 publication Critical patent/CA2144493A1/en
Application granted granted Critical
Publication of CA2144493C publication Critical patent/CA2144493C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Combustion Of Fluid Fuel (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Gas Burners (AREA)

Abstract

A tubular recuperative heat exchanger structure is mounted in a housing chamber within a fuel-fired condensing furnace in the vertical flow path of supply air being flowed through the housing by a blower. The heat exchanger structure comprises a primary heat exchanger defined by a vertically serpentined series of combustor tubes into open inlet ends of which a series of inshot-type fuel burners flow flames and hot combustion gases, and a secondary heat exchanger formed from a horizontally extending series of finned heat exchanger tubes having inlets in flow communication with the outlets of the combustor tubes and outlets in flow communication with the inlet of a draft inducer fan. The firing rate of the furnace is correlated to the configuration and relative geometries of the primary and secondary heat exchanger tubes in a manner making the overall heat exchanger highly compact and thermally efficient in addition to reducing air blower and draft inducer electrical consumption as well as reducing the operating noise of the furnace.
CA002144493A 1994-03-16 1995-03-13 High efficiency fuel-fired condensing furnace having a compact heat exchanger system Expired - Fee Related CA2144493C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/210,056 1994-03-16
US08/210,056 US5406933A (en) 1993-07-21 1994-03-16 High efficiency fuel-fired condensing furnace having a compact heat exchanger system

Publications (2)

Publication Number Publication Date
CA2144493A1 true CA2144493A1 (en) 1995-09-17
CA2144493C CA2144493C (en) 1997-04-22

Family

ID=22781431

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002144493A Expired - Fee Related CA2144493C (en) 1994-03-16 1995-03-13 High efficiency fuel-fired condensing furnace having a compact heat exchanger system

Country Status (2)

Country Link
AU (1) AU681000B2 (en)
CA (1) CA2144493C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116294204A (en) * 2023-04-13 2023-06-23 广州伟格机械设备有限公司 Heating induced draft structure of electric integrated hot-blast stove

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515145A (en) * 1983-10-03 1985-05-07 Yukon Energy Corporation Gas-fired condensing mode furnace
US5097819A (en) * 1991-06-24 1992-03-24 Gas Research Institute Dispersed bubble condensation
US5178124A (en) * 1991-08-12 1993-01-12 Rheem Manufacturing Company Plastic secondary heat exchanger apparatus for a high efficiency condensing furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116294204A (en) * 2023-04-13 2023-06-23 广州伟格机械设备有限公司 Heating induced draft structure of electric integrated hot-blast stove
CN116294204B (en) * 2023-04-13 2023-11-03 广州伟格机械设备有限公司 Heating induced draft structure of electric integrated hot-blast stove

Also Published As

Publication number Publication date
AU681000B2 (en) 1997-08-14
CA2144493C (en) 1997-04-22
AU1485895A (en) 1995-09-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed