KR900700822A - Composite Circulating Fluidized Bed Boiler - Google Patents

Composite Circulating Fluidized Bed Boiler

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Publication number
KR900700822A
KR900700822A KR1019890702496A KR890702496A KR900700822A KR 900700822 A KR900700822 A KR 900700822A KR 1019890702496 A KR1019890702496 A KR 1019890702496A KR 890702496 A KR890702496 A KR 890702496A KR 900700822 A KR900700822 A KR 900700822A
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KR
South Korea
Prior art keywords
fluidized bed
chamber
main combustion
combustion chamber
bed boiler
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KR1019890702496A
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Korean (ko)
Other versions
KR100229691B1 (en
Inventor
다가히로 오우시다
쇼이찌 나가또
노리히사 미요시
Original Assignee
후지무라 히로유끼
가부시기가이샤 에바라 세이사꾸쇼
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Publication of KR900700822A publication Critical patent/KR900700822A/en
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Publication of KR100229691B1 publication Critical patent/KR100229691B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00Fluidised bed combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00Fluidised bed combustion apparatus
    • F23C10/02Fluidised 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007Modifications 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
    • F22B31/0084Modifications 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007Modifications 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
    • F22B31/0084Modifications 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
    • F22B31/0092Modifications 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

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  • 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)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Laminated Bodies (AREA)

Abstract

This invention relates to a composite circulation fluidized bed boiler. A fluidized bed portion of the fluidized bed boiler is divided by a partition into a main combustion chamber and a heat recovery chamber, and at least two kinds of air chambers, i.e. an air chamber for providing a large fluidizing speed to a fluidization medium and an air chamber for providing a small fluidizing speed are provided. The combination of air having different fluidization speeds and jetted from these air chambers generates a swirling circulation flow in the fluidization medium inside the main combustion chamber and a circulation flow of the fluidization medium is generated between the main combustion chamber and the heat recovery chamber. Inside the heat recovery chamber, heat recovery of an exhaust gas is made at a free board portion or downstream of the free board portion in an internal circulation fluidized bed boiler for lowering the fluidization medium in the form of the fluidized bed, and after the temperature of the exhaust gas is lowered, the exhaust gas thus cooled is led into a cyclone and the char in a fine particle form collected by the cyclone is returned to the portion immediately above, or into, the lowering moving layer of the fluidization medium in the main combustion chamber and/or the heat recovery chamber. Since the char is returned immediately above or into the lowering moving layer of the fluidization medium, it does not immediately scatter to the free board portion. Accordingly, though it is the fine particles, it sediments and diffuses sufficiently into the fluidized bed so that NOx generated by the combustion of coal or the like inside the layer can be reduced.

Description

복합재 순환형 유동층 보일러Composite Circulating Fluidized Bed Boiler

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1,2 및 3도는 본 발명에 따라 증발관과 같은 열전달관이 건현(free board)내에 상부에 배열되는 여러 가지 형상의 복합 재순환형 유동층 보일러의 각각의 개략도.1, 2 and 3 are schematic diagrams of each of a composite recycle fluidized bed boiler of various shapes in which a heat transfer tube, such as an evaporation tube, is arranged on top in a free board in accordance with the present invention.

Claims (14)

보일러의 유동층부는 분할부재에 의해 주연소실과 열에너지회수실로 분할되고 하나는 고유동속도를 유동매체에 주기위한 공기실이고 다른 하나는 저유동속도를 주기 위한 공기실로 된 최소한 2종류의 공기실이 주연소실 하부에 제공되고 그에 의해 주연소실과 열에너지회수실간에 유동매체의 재순환 유동을 형성하도록 이들 공기실 밖으로 주입된 다른 유동속도를 갖는 공기유동의 조합에 의해 주연소실내에 유동매체로 나선형 순환유동을 제공하는 내부 재순환성 유동층보일러에 있어서, 배기가스로부터의 열에너지 회수는 수행되고 보일러 출구의 배기가스는 냉각되고 그후 사이클론으로 인도되고 사이클론에 모아진 입자는 상기 주연소실이나 상기열에너지회수실에 복귀되고 거기에서 복귀개구는 유동층내에 저유동속도를 갖는 하강가동층에 혹은 직상부에 정렬되는 것을 특징으로 하는 복합재순환형 유동층 보일러.The fluidized bed part of the boiler is divided into a main combustion chamber and a heat energy recovery chamber by a partition member, one of which is an air chamber for providing a high flow rate to the fluid medium, and the other is at least two kinds of air chambers for the low flow rate. Provides a spiral circulation flow to the fluid medium in the main combustion chamber by a combination of air flows provided at the bottom of the chamber and thereby having different flow rates injected out of these chambers to form a recirculation flow of the fluid medium between the main combustion chamber and the heat energy recovery chamber. In an internal recirculating fluidized bed boiler, heat energy recovery from the exhaust gas is carried out and the exhaust gas from the boiler outlet is cooled and then led to a cyclone and the particles collected in the cyclone are returned to the main combustion chamber or the heat energy recovery chamber and returned there. Openings in the descending movable bed with low flow velocity in the fluidized bed The composite recycling type fluidized bed boiler characterized in that arranged on a straight upper portion. 제1항에 있어서, 상기주연소실과 상기 열에너지회수실을 분리하는 분할부재벽은 주연소실에 큰 질량 유동을 갖는 공기주입부의 위쪽 및 외부로 주입된 유동공기의 상부유동을 막고 적은 질량유동을 갖는 공기주입부 상부로 상기 유동공기를 역정하여 편향시키기 위하여 경사위치되는 것을 특징으로 하는 복합재순환형 유동층 보일러.The dividing member wall separating the main combustion chamber and the thermal energy recovery chamber prevents the upper flow of the flow air injected into and out of the air injection unit having a large mass flow in the main combustion chamber and has a small mass flow. Composite circulation type fluidized bed boiler, characterized in that the inclined position in order to reverse the deflection of the flow air to the air injection portion. 제1항 혹은 제2항에 있어서, 탈황기가 주연소실에서 하강가동층에 공급되는 것을 특징으로 한 복합재순환형 유동층 보일러.The composite circulating fluidized bed boiler according to claim 1 or 2, wherein the desulfurizer is supplied to the descending movable bed in the main combustion chamber. 제1,2혹은 제3항에 있어서, 배기가스는 상기 배기가스가 250℃ 내지 400℃로 냉각된 후 사이클론에 인도되는 것을 특징으로 하는 복합재순환형 유동층 보일러.4. A composite circulating fluidized bed boiler according to claim 1, 2 or 3, wherein the exhaust gas is led to a cyclone after the exhaust gas is cooled to 250 ° C to 400 ° C. 제1,2,3 혹은 제4항에 있어서, 배기가스로부터의 열에너지 회수는 유동층 상부 건현부에 제공된 한덩어리의 열전달관에 의해 이루어지는 것을 특징으로 한 복합재순환형 유동층 보일러.5. A composite circulating fluidized bed boiler according to claim 1, 2, 3 or 4, wherein the heat energy recovery from the exhaust gas is made by a mass of heat transfer tubes provided in the upper part of the fluidized bed. 내용 없음No content 제6항에 있어서, 비교적 큰 입자와 탈황기와 건현부의 하루 및 건현부에 일체적으로 제공된 한덩어리의 열전달관부에 모아진 탄화물 입자를 갖는 유동매체는 스크류 콘베어이어와 같은 전송수단에 의해 유동층의 하강가동층 직상부 혹은 주연소실에 하강가동층으로 복귀되는 것을 특징으로 한 복합재순환형 유동층 보일러.7. The fluidized medium according to claim 6, wherein the fluidized medium having relatively large particles and carbide particles collected in a single heat transfer tube unit integrally provided on the day and the freeboard section of the desulfurizer and the freeboard section is subjected to the downward movement of the fluidized bed by a transmission means such as a screw conveyor. Composite circulating fluidized bed boiler, characterized in that returned to the lower movable bed in the upper part or the main combustion chamber. 제6항에 있어서, 비교적 큰 입자와 탈황기와 건현부의 하류 및 건현부에 일체적으로 제공된 한덩어리의 열전달관부에 모아진 탄화물 입자를 스크류콘베어이와 같은 전송수단에 의해 유동층의 하강가동층 직상부 혹은 열에너지회수실에 하강가동층으로 복귀되는 것을 특징으로 한 복합재순환형 유동층 보일러.The method according to claim 6, wherein the relatively large particles and carbide particles collected downstream of the desulfurization unit and the freeboard portion and integrally provided in the mass of the heat transfer tube portion provided integrally with the freeboard portion are transferred directly above the descending movable bed of the fluidized bed by the transfer means such as a screw conveyor or heat energy. Composite circulating fluidized bed boiler, characterized in that returned to the descending movable bed in the recovery chamber. 제8항에 있어서, 비교적 큰 입자와 탈황기와 탄화물 입자는 주연소실에서 좌,우측에 제공된 두 열에너지 회수실에 복귀되는 것을 특징으로 한 복합 재순환형 유동층 보일러.9. The combined recirculating fluidized bed boiler according to claim 8, wherein the relatively large particles, desulfurizer and carbide particles are returned from the main combustion chamber to two thermal energy recovery chambers provided on the left and right sides. 제7,8혹은 제9항에 있어서, 사이클론에 모아진 미세 탄화물을 포함한 입자는 상기 건현부에 일체적으로 제공된 한덩어리의 열전단관부에 모아진 임자를 유동층부나 열에너지회수부에 복귀시키기 위하여 콘베이어와 같은 수송수단에 복귀하는 것을 특징으로 한 복합재순환형 유동층 보일러.10. The method according to claim 7, 8 or 9, wherein the particles containing the fine carbide collected in the cyclone are conveyed to the fluidized bed or the heat energy recovery part to return the particles collected in the bulk of the thermal shear tube part provided integrally to the freeboard part. Composite circulating fluidized bed boiler, characterized in that the return to the vehicle. 제1항 내지 10항의 어느 한 항에 있어서, 제2공차 공기는 건현부로부터 대류열전달부까지 날라간 배기가스의 유동방향에 대향한 방향으로 붙어져서 건현부에 배기가스의 나선형 유동을 발생시키는 것을 특징으로 한 복합재순환형 유동층 보일러.11. The method of any one of claims 1 to 10, wherein the second tolerance air is attached in a direction opposite to the flow direction of the exhaust gas blown from the freeboard to the convective heat transfer to generate a helical flow of exhaust gas at the freeboard. Composite circulating fluidized bed boiler. 보일러의 유동층부는 분할부재에 의해 주연소실과 열에너지회수실로 분할되고 하나는 고유동속도를 유동매체에 주기위한 공기실이고 다른 하나는 저유동속도를 주기 위한 공기실로 된 최소한 2종류의 공기실의 주연소실이 하부에 제공되고 그에 의해 주연소실과 열에너지회수실간에 유동매체의 재순환 유동을 형성하도록 이들 공기실의 외부로 주입된 다른 유동속도를 갖는 공기유동의 조합에 의해 주여소실내에 유동매체로 나선형 유동을 제공하는 내부재순환형 유동층보일러에 있어서, 그것은 주연소실의 건현의 하류 및 일체적으로 제공된 대류열전달부를 포함하고 시팀드럼은 건현부의 상부에 제공되고 수드럼은 대류열전달부 하부에 제공되고 주연소실의 수파이프를 구성한 파이프는 건현상부 상기 스팀드럼의 한 부분으로부터 인출되고 배기 가스를 냉각하고 열에너지 회수를 위한 증발관이 대류열전달부에 스팀드럼과 수드럼사이에 제공되고 대류열전달부의 모아진 입자는 주연소실이나 열에너지 회수실에 유동매체의 적은 유동속도를 갖는 하강가동층으로 혹은 직상부에 복귀되는 것을 특징으로한 복합재순환형 유동층 보일러.The fluidized bed part of the boiler is divided into a main combustion chamber and a heat energy recovery chamber by a partitioning member, one of which is an air chamber for providing a high flow rate to the fluid medium, and the other is a main chamber of at least two kinds of air chambers for giving a low flow rate. Spiral flow into the flow medium in the main combustion chamber by means of a combination of air flows with different flow rates injected to the outside of these chambers to provide a recirculation flow of the flow medium between the main combustion chamber and the heat energy recovery chamber thereby providing a disappearance In an internal recirculating fluidized bed boiler, which includes a convective heat transfer downstream of the freeboard of the main combustion chamber and integrally provided, the sitim drum is provided at the top of the freeboard and the drum is provided at the bottom of the convection heat transfer and The pipe constituting the water pipe is drawn out from a part of the steam drum at the dry developing part and An evaporation tube for cooling the gas and recovering the thermal energy is provided between the steam drum and the soothing drum in the convective heat transfer section, and the collected particles in the convective heat transfer section are transferred to a descending movable bed having a low flow velocity of the fluid in the main combustion chamber or the heat energy recovery chamber. Composite circulating fluidized bed boiler, characterized in that returned to the upper portion. 제2항에 있어서, 모아진 입자는 수드럼하부에 제공된 V형 바닥에 모여지고 주연소실이나 열에너지회수 실에 유동매체의 하강가동층으로 혹은 직상부로 V형 바닥에 정렬된 스크류콘베이어로 복귀되는 것을 특징으로 한 복합재순환형 유동층 보일러.The method of claim 2, wherein the collected particles are collected at the V-type bottom provided under the drum and returned to the main combustion chamber or the heat recovery chamber as a descending movable bed of the fluid medium or to a screw conveyor aligned at the V-type bottom. Composite circulating fluidized bed boiler. 제12항에 있어서, 모아진 입자는 수드럼하부에 제공된 W형 바닥에 모여지고 열에너지회수실에 유동매체의 하강가동층으로 혹은 직상부로 W형 바닥에 정렬된 스크류콘베이어에 의해 복귀되는 것을 특징으로 하는 복합재순환형 유동층 보일러.13. The collected particles are collected at the bottom of the W-type provided under the drum and returned to the thermal energy recovery chamber by a screw conveyor aligned to the bottom of the fluidized medium or directly at the bottom of the W-type. Composite circulating fluidized bed boiler. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890702496A 1988-08-31 1989-12-29 Circulation type fluidized bed boiler KR100229691B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP88-215135 1988-08-31
JP21513588 1988-08-31
PCT/JP1989/000883 WO1990002293A1 (en) 1988-08-31 1989-08-30 Composite circulation fluidized bed boiler

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KR900700822A true KR900700822A (en) 1990-08-17
KR100229691B1 KR100229691B1 (en) 1999-11-15

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EP (1) EP0431163B1 (en)
KR (1) KR100229691B1 (en)
CN (1) CN1017469B (en)
AT (1) ATE131271T1 (en)
AU (1) AU4199889A (en)
CA (1) CA1332685C (en)
DE (1) DE68925033T2 (en)
MY (1) MY104683A (en)
WO (1) WO1990002293A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2116745C (en) * 1993-03-03 2007-05-15 Shuichi Nagato Pressurized internal circulating fluidized-bed boiler
CN100417862C (en) * 2005-12-09 2008-09-10 清华大学 Horizontal circulating fluidized bed burning equipment and its circulating burning method
FI122040B (en) * 2009-11-10 2011-07-29 Foster Wheeler Energia Oy Process and arrangement for feeding fuel into a boiler with circulating fluidized beds
EP2821697B1 (en) * 2012-02-13 2018-12-19 Ebara Environmental Plant Co., Ltd. In-bed heat transfer tube for fluidized bed boiler
JP5992322B2 (en) * 2012-12-28 2016-09-14 住友重機械工業株式会社 Circulating fluidized bed boiler
CN103090397B (en) * 2013-01-16 2015-09-09 河南科技大学 A kind of mud and fluidized bed multifuel combustion reactor
FI126744B (en) 2013-05-14 2017-04-28 Valmet Technologies Oy Arrangement and method of fluidization boiler
CN104279548A (en) * 2013-07-12 2015-01-14 李雨田 Energy-collecting heat exchange environment-friendly boiler
CN105444160B (en) * 2014-08-29 2019-01-08 中国科学院工程热物理研究所 Recirculating fluidized bed fine ash burner
CN106196124A (en) * 2016-08-23 2016-12-07 苏州泰盛新绿节能环保科技有限公司 A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content
CN107631293A (en) * 2017-10-27 2018-01-26 湘潭锅炉有限责任公司 A kind of CFBB
JP7079627B2 (en) * 2018-03-13 2022-06-02 荏原環境プラント株式会社 Fluidized bed heat recovery device
CN114353049A (en) * 2021-12-25 2022-04-15 江苏中科重工股份有限公司 Method and equipment for recycling steam-water heat of boiler drain flash tank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1517166A1 (en) * 1963-12-03 1969-05-14 Container Corp Process for treating a waste liquor containing organic and inorganic substances
DE2449798C2 (en) * 1974-10-19 1982-10-07 Thyssen Industrie Ag, 4300 Essen Fluidized bed furnace for the incineration of partially dewatered sludge
US4253425A (en) * 1979-01-31 1981-03-03 Foster Wheeler Energy Corporation Internal dust recirculation system for a fluidized bed heat exchanger
JPS57139205A (en) * 1981-02-23 1982-08-28 Babcock Hitachi Kk Fluidized bed furnace
GB2151503B (en) * 1981-12-15 1986-08-20 William Benedict Johnson Fluidized bed combustion apparatus and method of carrying out fluidized bed combustion
CH659876A5 (en) * 1983-05-10 1987-02-27 Sulzer Ag Fluid bed firing.
JPS62141408A (en) * 1985-12-13 1987-06-24 Mitsubishi Heavy Ind Ltd Circulation type fluidized bed combustor
CA1285375C (en) * 1986-01-21 1991-07-02 Takahiro Ohshita Thermal reactor
JPS63143409A (en) * 1986-12-03 1988-06-15 Mitsubishi Heavy Ind Ltd Fluidized bed boiler of circulation type

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EP0431163A1 (en) 1991-06-12
ATE131271T1 (en) 1995-12-15
AU4199889A (en) 1990-03-23
DE68925033D1 (en) 1996-01-18
KR100229691B1 (en) 1999-11-15
DE68925033T2 (en) 1996-05-15
MY104683A (en) 1994-05-31
EP0431163A4 (en) 1992-05-20
WO1990002293A1 (en) 1990-03-08
CN1017469B (en) 1992-07-15
CN1041646A (en) 1990-04-25
EP0431163B1 (en) 1995-12-06
CA1332685C (en) 1994-10-25

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