WO1991007623A1 - An apparatus for flue gas purification and heat recovery - Google Patents

An apparatus for flue gas purification and heat recovery Download PDF

Info

Publication number
WO1991007623A1
WO1991007623A1 PCT/FI1990/000266 FI9000266W WO9107623A1 WO 1991007623 A1 WO1991007623 A1 WO 1991007623A1 FI 9000266 W FI9000266 W FI 9000266W WO 9107623 A1 WO9107623 A1 WO 9107623A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
heat
air
heat recovery
recovery apparatus
Prior art date
Application number
PCT/FI1990/000266
Other languages
English (en)
French (fr)
Inventor
Heinz Ekman
Original Assignee
Scan-Vent Oy
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 Scan-Vent Oy filed Critical Scan-Vent Oy
Publication of WO1991007623A1 publication Critical patent/WO1991007623A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D12/00—Other central heating systems
    • F24D12/02—Other central heating systems having more than one heat source
    • 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
    • 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
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F24D2200/18—Flue gas recuperation
    • 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]
    • 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
    • Y02E20/30—Technologies for a more efficient combustion or heat usage

Definitions

  • the present invention relates to apparatus for flue gas puri ⁇ fication and heat recovery, wherein the flue gases from a heating boiler are directed to a heat exchanger, in which the flue gases yield their heat to a substance, such as air, flow ⁇ ing on the secondary side of the heat exchanger.
  • the flue gas purification and heat recovery apparatus according to the invention is charac ⁇ terized in that the outlet side for warm air in the heat ex ⁇ changer is connected to a regenerative air conditioning and heat recovery apparatus.
  • condensation takes place in the flue gases, whereupon the water vapor present in the flue gases will flow downwards, while impurities, heavy metals and sulfuric acid, will become bound to it.
  • the flue gases at the same time yield their heat to the air flowing on the secondary side, the air for its part heating up the batteries of the air conditioning and heat re ⁇ covery apparatus.
  • One embodiment of the invention is characterized in that the heat exchanger primary side, where the flue gases flow, and the heat exchanger secondary side, where the air flows, are connected to the heating boiler and to the air-conditioning and heat recovery apparatus in such a manner that the flows in the heat exchanger are parallel.
  • Another embodiment of the invention is characterized in that the diaphragm between the primary and secondary sides of the heat exchanger is elongate and in its cross section corrugated in such a manner that its surface area is maximal. Thus a very uniform and laminar flow is accomplished in the heat exchanger on both the primary side and the secondary side.
  • a third embodiment of the invention is characterized in that in the lower section of the heat exchanger there is a vessel into which the condensed liquid and the impurities flow and in which chemicals are used to neutralize the impurities which have dissolved in the condensed liquid.
  • this vessel is further connected, for example, directly to a drain or to a larger collection vessel, it need not be emptied periodically.
  • the required chemicals may also be provided by feeding them into the vessel according to need, for example, via a tube.
  • Figure 2 depicts a cross sectional plan view of the heat ex ⁇ changer.
  • the flue gases from a heating boiler 1 are directed to a heat ex ⁇ changer 2, in which the flue gases yield their heat to air flowing on the secondary side 3 of the heat exchanger.
  • the warm-air outlet side 5 of the heat exchanger 2 is connected to a regenerative air-conditioning and heat recovery apparatus 6.
  • the heat exchanger 2 primary side 7, where the flue gases flow, and the heat exchanger secondary side 3, where air flows, are connected to the heating boiler 1 and to the air- conditioning and heat recovery apparatus 6 in such a manner that the flows in the heat exchanger are parallel, i.e. in this case downward from above.
  • the diaphragm 8 between the primary and secondary sides of the heat exchanger is elongate and in its cross section corrugated so that its surface area is maximal.
  • a vessel 9 into which the condensed liquid and the impurities flow and in which chemicals are used to neutralize the impurities which have dissolved in the con ⁇ densed liquid.
  • the liquids neutralized in the vessel 9 are directed via a pipe 10 to the drain or to a separate collec ⁇ tion vessel.
  • the air arriving at +20 °C from room spaces is heated in the heat exchanger 2 to +30 °C. Thereafter this heated air yields its heat to the battery of the air- conditioning and heat recovery apparatus, whereafter it flows out.

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)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
PCT/FI1990/000266 1989-11-10 1990-11-08 An apparatus for flue gas purification and heat recovery WO1991007623A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI895356A FI83929C (fi) 1989-11-10 1989-11-10 Rengoerings- och vaermeaotervinningsanordning fraon roekgaser.
FI895356 1989-11-10

Publications (1)

Publication Number Publication Date
WO1991007623A1 true WO1991007623A1 (en) 1991-05-30

Family

ID=8529324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1990/000266 WO1991007623A1 (en) 1989-11-10 1990-11-08 An apparatus for flue gas purification and heat recovery

Country Status (2)

Country Link
FI (1) FI83929C (fi)
WO (1) WO1991007623A1 (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909928A1 (en) * 1997-10-17 1999-04-21 Apparatenfabriek Warmtebouw B.V. Heat recovery unit
US6394174B1 (en) * 1999-01-29 2002-05-28 Taiwan Semiconductor Manufacturing Company, Ltd System for reclaiming process water

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191115670A (en) * 1911-07-05 1912-07-05 Mandrix Centralovn As Improvements in Stoves.
FR1155978A (fr) * 1956-07-12 1958-05-12 échangeur de chaleur perfectionné
DE2056825A1 (de) * 1970-11-19 1972-05-31 Hergt M Kombinationsverfahren zur Reinhaltung der Luft, Abgasverwertung und Abgasführung, insbesondere für Ölheizungsanlagen
US4049404A (en) * 1975-07-31 1977-09-20 Combustion Research Corporation Ventilation system with thermal energy recovery
EP0148988A2 (de) * 1984-01-14 1985-07-24 Vereinigte Elektrizitätswerke Westfalen AG Verfahren und Vorrichtung zur Erwärmung der Raumluft, insbesondere von Wohnungen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191115670A (en) * 1911-07-05 1912-07-05 Mandrix Centralovn As Improvements in Stoves.
FR1155978A (fr) * 1956-07-12 1958-05-12 échangeur de chaleur perfectionné
DE2056825A1 (de) * 1970-11-19 1972-05-31 Hergt M Kombinationsverfahren zur Reinhaltung der Luft, Abgasverwertung und Abgasführung, insbesondere für Ölheizungsanlagen
US4049404A (en) * 1975-07-31 1977-09-20 Combustion Research Corporation Ventilation system with thermal energy recovery
EP0148988A2 (de) * 1984-01-14 1985-07-24 Vereinigte Elektrizitätswerke Westfalen AG Verfahren und Vorrichtung zur Erwärmung der Raumluft, insbesondere von Wohnungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909928A1 (en) * 1997-10-17 1999-04-21 Apparatenfabriek Warmtebouw B.V. Heat recovery unit
US6394174B1 (en) * 1999-01-29 2002-05-28 Taiwan Semiconductor Manufacturing Company, Ltd System for reclaiming process water

Also Published As

Publication number Publication date
FI83929C (fi) 1991-09-25
FI83929B (fi) 1991-06-14
FI895356A0 (fi) 1989-11-10

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