AU609731B2 - Internal circulation type fluidized bed boiler and method of controlling same - Google Patents

Internal circulation type fluidized bed boiler and method of controlling same

Info

Publication number
AU609731B2
AU609731B2 AU77088/87A AU7708887A AU609731B2 AU 609731 B2 AU609731 B2 AU 609731B2 AU 77088/87 A AU77088/87 A AU 77088/87A AU 7708887 A AU7708887 A AU 7708887A AU 609731 B2 AU609731 B2 AU 609731B2
Authority
AU
Australia
Prior art keywords
fluidized bed
air
ejected
controlling
bed boiler
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.)
Ceased
Application number
AU77088/87A
Other versions
AU7708887A (en
Inventor
Tsutomu Higo
Naoki Inumaru
Hajime Kawaguchi
Shigeru Kosugi
Takahiro Ohshita
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.)
Ebara Corp
Original Assignee
Ebara Corp
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 Ebara Corp filed Critical Ebara Corp
Publication of AU7708887A publication Critical patent/AU7708887A/en
Application granted granted Critical
Publication of AU609731B2 publication Critical patent/AU609731B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/005—Fluidised bed combustion apparatus comprising two or more beds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
    • F22B31/0092—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed with a fluidized heat exchange bed and a fluidized combustion bed separated by a partition, the bed particles circulating around or through that partition
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/06—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone the circulating movement being promoted by inducing differing degrees of fluidisation in different parts of the bed
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/12—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone
    • F23C10/14—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone the circulating movement being promoted by inducing differing degrees of fluidisation in different parts of the bed
    • 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
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

An internal circulation type fluidized bed boiler in which a fluidized bed primary combustion chamber is formed by providing above the portion of an air distributing plate from which the air having a higher mass velocity is ejected an inclined partition wall which is adapted to intercept an upward flow of the fluidization air ejected from this air ejection portion, and turn this upward flow of the air toward the position above the portion of the air distributing plate from which a gas having a low mass velocity is ejected, with a heat recovery chamber formed between the inclined partition wall and a furnace wall. The inclined partition wall is formed so as to have an angle of inclination of 10 DEG -60 DEG with respect to a horizontal plane, and a horizontal projection length of 1/6-1/2 of the horizontal length of the furnace bottom. The method of controlling this fluidized bed boiler consists of the steps of controlling the quantity of heat recovered from the heat recovery chamber in compliance with the request by the users of recovered heat by suitably regulating the flow rate of the air ejected from a diffuser for the heat recovery chamber, and controlling the feed rate of the fuel supplied to the fluidized bed primary combustion chamber, on the basis of the temperature of the fluidized bed primary combustion chamber.
AU77088/87A 1987-07-20 1987-07-20 Internal circulation type fluidized bed boiler and method of controlling same Ceased AU609731B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1987/000530 WO1989000659A1 (en) 1987-07-20 1987-07-20 Internal circulation type fluidized bed boiler and method of controlling same

Publications (2)

Publication Number Publication Date
AU7708887A AU7708887A (en) 1989-02-13
AU609731B2 true AU609731B2 (en) 1991-05-09

Family

ID=13902775

Family Applications (1)

Application Number Title Priority Date Filing Date
AU77088/87A Ceased AU609731B2 (en) 1987-07-20 1987-07-20 Internal circulation type fluidized bed boiler and method of controlling same

Country Status (12)

Country Link
EP (1) EP0369004B1 (en)
KR (1) KR950007013B1 (en)
AT (1) ATE85682T1 (en)
AU (1) AU609731B2 (en)
BR (1) BR8707989A (en)
CA (1) CA1316413C (en)
DE (1) DE3784174T2 (en)
DK (1) DK166694B1 (en)
FI (1) FI94170C (en)
NO (1) NO168912C (en)
RU (1) RU2059150C1 (en)
WO (1) WO1989000659A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU641022B2 (en) * 1990-09-13 1993-09-09 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Fluidising bed combustor with a stationary fluidised bed

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629652B2 (en) * 1987-07-13 1994-04-20 株式会社荏原製作所 Combustion control device in fluidized bed boiler
US5054436A (en) * 1990-06-12 1991-10-08 Foster Wheeler Energy Corporation Fluidized bed combustion system and process for operating same
CA2116745C (en) * 1993-03-03 2007-05-15 Shuichi Nagato Pressurized internal circulating fluidized-bed boiler
US5401130A (en) * 1993-12-23 1995-03-28 Combustion Engineering, Inc. Internal circulation fluidized bed (ICFB) combustion system and method of operation thereof
EP0722067A3 (en) * 1995-01-12 1998-02-04 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Heat recovery apparatus by fluidized bed
TW270970B (en) * 1995-04-26 1996-02-21 Ehara Seisakusho Kk Fluidized bed combustion device
CN101225960B (en) * 2008-01-30 2010-06-09 重庆三峰卡万塔环境产业有限公司 Fire box of inverse push type destructor
US8434430B2 (en) * 2009-09-30 2013-05-07 Babcock & Wilcox Power Generation Group, Inc. In-bed solids control valve
RU2552009C1 (en) * 2013-12-30 2015-06-10 Евгений Михайлович Пузырёв Mechanised grate-fired furnace
RU2591070C2 (en) * 2014-07-30 2016-07-10 Евгений Михайлович Пузырёв Solid-fuel boiler with vortex furnace

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301771A (en) * 1980-07-02 1981-11-24 Dorr-Oliver Incorporated Fluidized bed heat exchanger with water cooled air distributor and dust hopper
US4452155A (en) * 1981-01-27 1984-06-05 Ebara Corporation Method for incinerating material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1448196A (en) * 1972-10-20 1976-09-02 Sprocket Properties Ltd Fluidised bed incinerators
GB1475992A (en) * 1974-04-11 1977-06-10 Fluidfire Dev Apparatus in which combustion takes place in a fludised bed
GB1604314A (en) * 1978-05-31 1981-12-09 Appa Thermal Exchanges Ltd Fluidised bed combusters
JPS57124608A (en) * 1981-01-27 1982-08-03 Ebara Corp Fluidized bed type heat-reactive furnace
CA1285375C (en) * 1986-01-21 1991-07-02 Takahiro Ohshita Thermal reactor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301771A (en) * 1980-07-02 1981-11-24 Dorr-Oliver Incorporated Fluidized bed heat exchanger with water cooled air distributor and dust hopper
US4452155A (en) * 1981-01-27 1984-06-05 Ebara Corporation Method for incinerating material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU641022B2 (en) * 1990-09-13 1993-09-09 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Fluidising bed combustor with a stationary fluidised bed

Also Published As

Publication number Publication date
FI896301A0 (en) 1989-12-28
WO1989000659A1 (en) 1989-01-26
FI94170C (en) 1995-07-25
KR950007013B1 (en) 1995-06-26
RU2059150C1 (en) 1996-04-27
NO168912B (en) 1992-01-06
DK166694B1 (en) 1993-06-28
AU7708887A (en) 1989-02-13
EP0369004B1 (en) 1993-02-10
NO891168D0 (en) 1989-03-17
ATE85682T1 (en) 1993-02-15
KR890701950A (en) 1989-12-22
DK128289A (en) 1989-05-11
DK128289D0 (en) 1989-03-16
EP0369004A1 (en) 1990-05-23
EP0369004A4 (en) 1990-10-24
FI94170B (en) 1995-04-13
NO891168L (en) 1989-04-06
NO168912C (en) 1992-04-15
DE3784174D1 (en) 1993-03-25
BR8707989A (en) 1990-05-22
DE3784174T2 (en) 1993-09-02
CA1316413C (en) 1993-04-20

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