MD4270B1 - Power plant for burning fuel and process for recycling smoke gases for fuel burning therein - Google Patents

Power plant for burning fuel and process for recycling smoke gases for fuel burning therein

Info

Publication number
MD4270B1
MD4270B1 MDA20130035A MD20130035A MD4270B1 MD 4270 B1 MD4270 B1 MD 4270B1 MD A20130035 A MDA20130035 A MD A20130035A MD 20130035 A MD20130035 A MD 20130035A MD 4270 B1 MD4270 B1 MD 4270B1
Authority
MD
Moldova
Prior art keywords
smoke
duct
gases
burning
fuel
Prior art date
Application number
MDA20130035A
Other languages
Moldavian (mo)
Romanian (ro)
Other versions
MD4270C1 (en
Inventor
Iurie Panfil
Original Assignee
Iurie Panfil
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 Iurie Panfil filed Critical Iurie Panfil
Priority to MDA20130035A priority Critical patent/MD4270C1/en
Publication of MD4270B1 publication Critical patent/MD4270B1/en
Priority to PCT/MD2014/000001 priority patent/WO2014196848A1/en
Priority to EA201592208A priority patent/EA030025B1/en
Publication of MD4270C1 publication Critical patent/MD4270C1/en

Links

Classifications

    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • 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 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/30—Premixing fluegas with combustion air
    • 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 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/50—Control of recirculation rate

Abstract

The invention relates to heat power engineering, particularly to power plants for burning various types of fuel and to processes for recycling smoke gases for fuel burning in power plants.The power plant for burning fuel comprises a furnace (1) with burners (2) and a convective flue duct (3), connected through a smoke exhauster (4) and a smoke duct (5) to a smokestack (6); an outer air duct (9) connected to the smoke duct (5) through a smoke gas bypass conduit (11) and an outer air and smoke gas mixture duct (14), which is connected to a blow fan (13); a throttle (10) mounted on the duct (9), and a valve (12) mounted on the smoke gas bypass conduit (11), the throttle (10) and the valve (12) being equipped with actuators; an air preheater (8) placed in the convective flue duct (3), connected to the blow fan (13) and joined with the burners (2 ) through a heated outer air and smoke gas mixture duct (15); a smoke gas sampling transducer (16), mounted at the inlet into the convective flue duct (3) and connected to a gas analyzer (17) determining the content of oxygen and carbon monoxide in the smoke gases; an electronic control unit (18), which is connected to the gas analyzer (17) and to the actuators of the throttle (10) and the valve (12).The process for recycling smoke gases for fuel burning in power plants includes the selection of a part of flue gases with static pressure greater than the atmospheric pressure from a smoke duct (5) and feeding it through a smoke gas bypass conduit (11) into an outer air duct (9) with the outer air static pressure less than the atmospheric pressure; regulation of fresh air and smoke gas feeding through the actuators of a throttle (10) and a valve (12), controlled by an electronic control unit (18), so that the percentage content of oxygen in the ambient air may be reduced to a level, at which at the inlet into a convective flue duct (3) the oxygen content in the smoke gases may be less than 1% in the absence of carbon monoxide; subsequent mixing of smoke gases with the outer air in an air duct (14) and a blow fan (13) to obtain a homogeneous mixture of outer air and smoke gases; heating of the resulting mixture in an air preheater (8) by utilizing the heat of smoke gases; feeding of the heated mixture into burners (2) through a duct (15).
MDA20130035A 2013-06-06 2013-06-06 Power plant for burning fuel and process for recycling smoke gases for fuel burning therein MD4270C1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
MDA20130035A MD4270C1 (en) 2013-06-06 2013-06-06 Power plant for burning fuel and process for recycling smoke gases for fuel burning therein
PCT/MD2014/000001 WO2014196848A1 (en) 2013-06-06 2014-05-30 Method of operating a boiler unit and the boiler unit
EA201592208A EA030025B1 (en) 2013-06-06 2014-05-30 Method of operating a boiler unit and boiler unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20130035A MD4270C1 (en) 2013-06-06 2013-06-06 Power plant for burning fuel and process for recycling smoke gases for fuel burning therein

Publications (2)

Publication Number Publication Date
MD4270B1 true MD4270B1 (en) 2014-01-31
MD4270C1 MD4270C1 (en) 2014-08-31

Family

ID=50071902

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20130035A MD4270C1 (en) 2013-06-06 2013-06-06 Power plant for burning fuel and process for recycling smoke gases for fuel burning therein

Country Status (3)

Country Link
EA (1) EA030025B1 (en)
MD (1) MD4270C1 (en)
WO (1) WO2014196848A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU175713U1 (en) * 2016-12-07 2017-12-15 Общество с ограниченной ответственностью "Газ-Проект Инжиниринг" ООО "Газ-Проект Инжиниринг" - Российская Федерация RECOVERY INSTALLATION

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU846924A1 (en) * 1979-03-06 1981-07-15 Сибирский Филиал Всесоюзного Дважды Орденатрудового Красного Знамени Теплотехничес-Кого Научно-Исследовательного Институтаим. Ф.Э.Дзержинского Boiler unit operation method
SU987287A1 (en) * 1981-09-23 1983-01-07 За витель f i / f Boiler
US4355601A (en) * 1981-09-25 1982-10-26 Conoco Inc. Recirculating flue gas fluidized bed heater
JPS5974408A (en) * 1982-10-22 1984-04-26 Babcock Hitachi Kk Combustion device
US5002484A (en) * 1988-03-25 1991-03-26 Shell Western E&P Inc. Method and system for flue gas recirculation
JPH02101302A (en) * 1988-10-05 1990-04-13 Ishikawajima Harima Heavy Ind Co Ltd Control method for nox in flue gas
US5461853A (en) * 1994-11-30 1995-10-31 The Babcock & Wilcox Company HRSG boiler design with air staging and gas reburn
US6200128B1 (en) * 1997-06-09 2001-03-13 Praxair Technology, Inc. Method and apparatus for recovering sensible heat from a hot exhaust gas
RU2136930C1 (en) * 1997-11-19 1999-09-10 Ферд Максим Лейбович Gas-turbine plant operating process
US20090158978A1 (en) * 2007-12-20 2009-06-25 Foster Wheeler Energy Corporation Method of controlling a process of generating power by oxyfuel combustion
US8728423B2 (en) * 2008-04-07 2014-05-20 Mitsubishi Heavy Industries, Ltd. Method and apparatus for flue gas treatment

Also Published As

Publication number Publication date
EA030025B1 (en) 2018-06-29
MD4270C1 (en) 2014-08-31
WO2014196848A1 (en) 2014-12-11
EA201592208A1 (en) 2016-04-29

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Legal Events

Date Code Title Description
FG4A Patent for invention issued