CA2313857A1 - Method and apparatus for optimizing the combustion air system in a recovery boiler - Google Patents

Method and apparatus for optimizing the combustion air system in a recovery boiler Download PDF

Info

Publication number
CA2313857A1
CA2313857A1 CA002313857A CA2313857A CA2313857A1 CA 2313857 A1 CA2313857 A1 CA 2313857A1 CA 002313857 A CA002313857 A CA 002313857A CA 2313857 A CA2313857 A CA 2313857A CA 2313857 A1 CA2313857 A1 CA 2313857A1
Authority
CA
Canada
Prior art keywords
boiler
walls
damper
air
optimizing
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
CA002313857A
Other languages
French (fr)
Other versions
CA2313857C (en
Inventor
Ibrahim Karidio
Victor Uloth
Klaus Weiss
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.)
FPInnovations
Original Assignee
Pulp and Paper Research Institute of Canada
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 Pulp and Paper Research Institute of Canada filed Critical Pulp and Paper Research Institute of Canada
Priority to CA002313857A priority Critical patent/CA2313857C/en
Publication of CA2313857A1 publication Critical patent/CA2313857A1/en
Application granted granted Critical
Publication of CA2313857C publication Critical patent/CA2313857C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/28—Disposition of burners to obtain flames in opposing directions, e.g. impacting flames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/02—Disposition of air supply not passing through burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L3/00—Arrangements of valves or dampers before the fire

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)

Abstract

A method and an apparatus for optimizing the combustion air system in a power boiler or chemical recovery boiler by improving fluid flow and gas mixing are disclosed, whereby one can increase boiler capacity and combustion uniformity and reduce particulate and gaseous emissions. The method involves interlacing of the secondary and, where applicable, the tertiary air supply through opposing air ports on all four walls of the boiler, and is implemented by alternately opening wide or partially closing a port damper on one side, while partially closing or opening wide a port damper on the opposite side, such that a 70-100%
open damper on one side opposes a partially closed (10-40% open) damper on the other and vice versa in an alternating fashion, along opposing walls. In a preferred embodiment, the optimization is further enhanced by balancing primary air flow, achieved by adjusting port dampers and windbox pressures so that the primary air flow is evenly distributed between opposite walls, between all four walls of the boiler and between individual airports on each wall. Windbox pressure and other key measurements of boiler operation ensure proper balancing and an adequate interlacing of air flows at the primary, secondary and tertiary elevations, respectively.
CA002313857A 1999-10-22 2000-07-11 Method and apparatus for optimizing the combustion air system in a recovery boiler Expired - Lifetime CA2313857C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002313857A CA2313857C (en) 1999-10-22 2000-07-11 Method and apparatus for optimizing the combustion air system in a recovery boiler

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2287205 1999-10-22
CA2,287,205 1999-10-22
CA002313857A CA2313857C (en) 1999-10-22 2000-07-11 Method and apparatus for optimizing the combustion air system in a recovery boiler

Publications (2)

Publication Number Publication Date
CA2313857A1 true CA2313857A1 (en) 2001-04-22
CA2313857C CA2313857C (en) 2005-04-26

Family

ID=25681272

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002313857A Expired - Lifetime CA2313857C (en) 1999-10-22 2000-07-11 Method and apparatus for optimizing the combustion air system in a recovery boiler

Country Status (1)

Country Link
CA (1) CA2313857C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1729062A2 (en) * 2005-06-02 2006-12-06 Air Products and Chemicals, Inc. Dynamic burner reconfiguration and combustion system for process heaters and boilers
CN107289445A (en) * 2017-06-12 2017-10-24 沈阳化工大学 A kind of device for improving boiler of power plant fuel value

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1729062A2 (en) * 2005-06-02 2006-12-06 Air Products and Chemicals, Inc. Dynamic burner reconfiguration and combustion system for process heaters and boilers
EP1729062A3 (en) * 2005-06-02 2007-10-03 Air Products and Chemicals, Inc. Dynamic burner reconfiguration and combustion system for process heaters and boilers
CN107289445A (en) * 2017-06-12 2017-10-24 沈阳化工大学 A kind of device for improving boiler of power plant fuel value

Also Published As

Publication number Publication date
CA2313857C (en) 2005-04-26

Similar Documents

Publication Publication Date Title
WO1994002784A1 (en) Flow passage change-over apparatus, regenerative alternate combustion burner system and regenerative heat exchanger system
DE60036006D1 (en) MODULAR DEVICE FOR PRINT CHANGE ADSORPTION
CA2413131A1 (en) One shot heat exchanger burner
SE0001887L (en)
CA2313857A1 (en) Method and apparatus for optimizing the combustion air system in a recovery boiler
CN104114945A (en) Dual venturi for combustion apparatus
WO2003054446A3 (en) Method and apparatus for improving the efficiency of a combustion device
US5730070A (en) Apparatus for introducing gas recirculation to control steam temperature in steam generation systems
PT1278005E (en) INCORPORATED GREAT CAPACITY GAS PURIFIER WITH LARGE VALVE
JP2019203657A (en) Combustion device
CN218066989U (en) Balanced detecting system of displacement
CN218066988U (en) Balanced detecting system of displacement
CN108119673A (en) A kind of four-way reversing valve
CN219346708U (en) New fan
CN220205795U (en) Flue gas treatment system of coal-fired boiler
JP2712315B2 (en) Gas water heater
JPH0212444Y2 (en)
CN207622079U (en) A kind of safe combustion system applied to stove
KR100644289B1 (en) A Separation Plate Assembly Structure Of The Flame Unit At The Gas Burner
KR200152802Y1 (en) Air flow control device of gas burner
JP2012077964A (en) Combustion device
KR970046927A (en) Combustion apparatus for reducing NOx in boilers
KR200399891Y1 (en) Vertical cock for regulating flow of gas for cooking stove
WO2003104721A1 (en) Method for manufacturing a ventilation closing plate and a closing plate
JP2021001700A (en) Nozzle, and boiler comprising nozzle

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20200713