CA2499865A1 - Improved recuperator of flue gas heat - Google Patents

Improved recuperator of flue gas heat Download PDF

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Publication number
CA2499865A1
CA2499865A1 CA 2499865 CA2499865A CA2499865A1 CA 2499865 A1 CA2499865 A1 CA 2499865A1 CA 2499865 CA2499865 CA 2499865 CA 2499865 A CA2499865 A CA 2499865A CA 2499865 A1 CA2499865 A1 CA 2499865A1
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CA
Canada
Prior art keywords
flue
metal
heat
furnace
air
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
CA 2499865
Other languages
French (fr)
Other versions
CA2499865C (en
Inventor
Milan Rybak
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2499865 priority Critical patent/CA2499865C/en
Publication of CA2499865A1 publication Critical patent/CA2499865A1/en
Application granted granted Critical
Publication of CA2499865C publication Critical patent/CA2499865C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F28D7/10—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 arranged one within the other, e.g. concentrically
    • F28D7/106—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 arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
    • F28D21/0008—Air heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00—Spacing means

Abstract

The present invention relates to flue-mounted power heat recuperators designed to transfer heat from flue gas through metal to air.
In this invention a heat reflecting flexible sleeve encloses a metal flue of low emissivity, forming a "tube-within-a-tube"
heat exchanger, and heat is reclaimed directly from the outside surface of the said flue by means of counterflow or parallel-flow forced air convection.
The above arrangement provides air of higher temperature, and when combined with a central home-heating forced air furnace it increases temperature of supply air and enhances efficiency of the whole central home-heating system.

Claims (2)

1. A system for transferring heat from flue gas through metal to air comprising:
a metal flue for venting flue gas from a combustion heater, stove or furnace, wherein said metal flue has outside surface of low emmissivity;
spacing means arranged on periphery of said metal flue wherein said spacing means have no areal contact with said metal flue;
a flexible sleeve having a wall made of a heat reflecting material and inside diameter sized to fit over said spacing means wherein said flexible sleeve is held in coaxial position to said metal flue by said spacing means thereby forming an annular passageway along said metal flue to allow air flow along and in contact with outside surface of said metal flue;
an outlet air duct fluidly connected to said flexible sleeve; and a fan or other means generating negative pressure in the said outlet air duct.
2. The system of claim 1 wherein said furnace is a central home-heating forced air furnace and said outlet air duct is fluidly connected to a return air duct or plenum of said central home-heating forced air furnace.
CA 2499865 2005-03-24 2005-03-24 Improved recuperator of flue gas heat Expired - Fee Related CA2499865C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2499865 CA2499865C (en) 2005-03-24 2005-03-24 Improved recuperator of flue gas heat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2499865 CA2499865C (en) 2005-03-24 2005-03-24 Improved recuperator of flue gas heat

Publications (2)

Publication Number Publication Date
CA2499865A1 true CA2499865A1 (en) 2006-09-24
CA2499865C CA2499865C (en) 2012-06-12

Family

ID=37055021

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2499865 Expired - Fee Related CA2499865C (en) 2005-03-24 2005-03-24 Improved recuperator of flue gas heat

Country Status (1)

Country Link
CA (1) CA2499865C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2351978A3 (en) * 2010-01-11 2012-10-31 LG Electronics Inc. Pipe in pipe heat exchanger with vibration reduction
CN102954484A (en) * 2011-08-31 2013-03-06 上海宝钢工业检测公司 Compact thermal stress compensatory radiant tube heat exchange device
FR2982011A1 (en) * 2011-10-28 2013-05-03 Fadis Heat recovery device for stove i.e. wood stove, utilized in heating installation of dwelling, has deflector arranged in free space to force air flow to partially wrap around pipe of stove, where air flow circulates in free space
US20170219480A1 (en) * 2013-09-18 2017-08-03 Olythe Measuring vessel for spectrometry measurement apparatus
EP3123093A4 (en) * 2014-03-27 2017-11-08 Skorstensbolaget I Stockholm AB Tubular counter-current air heat exchanger

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2351978A3 (en) * 2010-01-11 2012-10-31 LG Electronics Inc. Pipe in pipe heat exchanger with vibration reduction
CN102954484A (en) * 2011-08-31 2013-03-06 上海宝钢工业检测公司 Compact thermal stress compensatory radiant tube heat exchange device
CN102954484B (en) * 2011-08-31 2015-07-29 宝钢工业炉工程技术有限公司 Compact thermal stress compensation formula radiant tube heat exchange device
FR2982011A1 (en) * 2011-10-28 2013-05-03 Fadis Heat recovery device for stove i.e. wood stove, utilized in heating installation of dwelling, has deflector arranged in free space to force air flow to partially wrap around pipe of stove, where air flow circulates in free space
US20170219480A1 (en) * 2013-09-18 2017-08-03 Olythe Measuring vessel for spectrometry measurement apparatus
US10078047B2 (en) * 2013-09-18 2018-09-18 Olythe Measuring vessel for spectrometry measurement apparatus
EP3123093A4 (en) * 2014-03-27 2017-11-08 Skorstensbolaget I Stockholm AB Tubular counter-current air heat exchanger

Also Published As

Publication number Publication date
CA2499865C (en) 2012-06-12

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Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20200831