CN102072664A - Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat - Google Patents

Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat Download PDF

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Publication number
CN102072664A
CN102072664A CN2011100425436A CN201110042543A CN102072664A CN 102072664 A CN102072664 A CN 102072664A CN 2011100425436 A CN2011100425436 A CN 2011100425436A CN 201110042543 A CN201110042543 A CN 201110042543A CN 102072664 A CN102072664 A CN 102072664A
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CN
China
Prior art keywords
treatment furnace
flue gas
air
air preheater
flue
Prior art date
Application number
CN2011100425436A
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Chinese (zh)
Inventor
刘智泉
陈启林
刘阳
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刘智泉
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Publication date
Application filed by 刘智泉 filed Critical 刘智泉
Priority to CN2011100425436A priority Critical patent/CN102072664A/en
Publication of CN102072664A publication Critical patent/CN102072664A/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention discloses an efficient thermal treatment furnace for recovering and utilizing flue gas waste heat, belonging to a heating device. The efficient thermal treatment furnace is composed of a heating furnace, a flue, an air preheater and a combustor, wherein the air preheater is connected in series in the flue on the top of the heating furnace; an outlet pipeline of a blast blower is connected with an inlet of the air preheater; and an outlet pipeline of the air preheater is connected with the combustor via an assembled air flue. The efficient thermal treatment furnace for recovering and utilizing flue gas waste heat is a heating surface for preheating the air to certain temperature by the flue gas in the flue at the tail of a boiler through an internal heat exchange tube before the air enters into the boiler. The efficient thermal treatment furnace is used for improving the thermal exchange performance of the boiler and lowering energy consumption. The efficient thermal treatment furnace has reasonable structural design, heats air by the waste heat of the flue gas to cause fuel to be fully combusted, thus saving fuel cost, lowering production cost, reducing exhaust gas emission, saving energy and protecting environment.

Description

The efficient heat-treatment furnace of flue gas waste heat recovery utilization

Technical field

The present invention relates to a kind of heater, particularly the efficient heat-treatment furnace of flue gas waste heat recovery utilization.

Background technology

Heating furnace is the equipment with material or workpiece heating.By the thermal source division fuel heating furnace, resistance-heated furnace, induction heater, microwave oven etc. are arranged, use and spread all over many industry fields such as oil, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, material, light industry, daily use chemicals, pharmacy.Industrial fuel oil, combustion gas, when burning boiler manufactures and designs, in order to prevent heated surface at the end of boiler corrosion and dust stratification, exhaust gas temperature is not less than about 160~180 ℃ generally speaking, reaches as high as 500~700 ℃, high temperature discharge not only causes a large amount of thermal waste, and the while is contaminated environment also.The heat exchanger kind of the fume afterheat that at present different industries is used is a lot, the heat that reclaims adds hot water as required, generation steam is made heating furnace moisturizing and domestic water, or add the drying of hot-air as boiler auxiliary combustion wind or material, but the heat-treatment furnace project organization of industries such as existing metallurgy, machinery is unreasonable, makes the heat utilization efficiency of flue gas very low.

Summary of the invention

The present invention is intended to overcome the deficiencies in the prior art, provide a kind of flue gas waste heat recovery utilization efficient heat-treatment furnace, in the fuel saving expense, reduce production costs, reduce under the prerequisite of toxic emission, energy-conserving and environment-protective, improve the thermal efficiency of heating furnace, improve the quality of heating object in the heating-furnace.

The efficient heat-treatment furnace of flue gas waste heat recovery utilization of the present invention, be to constitute by heating furnace, flue, air preheater and burner, in the flue at heating furnace top, air preheater has been installed, the export pipeline of air blast connects the inlet of air preheater, and the export pipeline of air preheater connects burner through the set air channel.

As a further improvement on the present invention, described air preheater is a shell-and-tube heat exchanger, and its two ends are equipped with tube sheet, are fixed with heat exchanger tube between the tube sheet of two ends, is provided with air intake a and outlet b on the housing of air preheater.

As a further improvement on the present invention, heat exchanger tube is a finned tube.

As a further improvement on the present invention, the shell side in air preheater is provided with at least one deflection plate.

As a further improvement on the present invention, the tube side of air preheater is that exhaust gases passes, shell side are air duct.

The efficient heat-treatment furnace of flue gas waste heat recovery utilization of the present invention is that the heat exchanger tube of the flue gas in the heating furnace back-end ductwork by inside will be entered air preheat before the boiler to uniform temperature, is used to improve the thermal efficiency of heating furnace, reduces energy consumption.

The efficient heat-treatment furnace of flue gas waste heat recovery utilization of the present invention, the structural design advantages of simple is utilized the waste heat of flue gas to add hot-air fuel can fully be burnt, and the fuel saving expense reduces production costs, and reduces toxic emission, and energy-conserving and environment-protective kill two birds with one stone.

Description of drawings

Figure of description is the structural representation of the efficient heat-treatment furnace of flue gas waste heat recovery utilization of the present invention.

The specific embodiment

The efficient heat-treatment furnace of flue gas waste heat recovery utilization of the present invention, be to constitute by heating furnace 1, flue 2, air preheater 3 and burner 4, in the flue 2 at heating furnace 1 top air preheater 3 has been installed, the upper/lower terminal of air preheater 3 all is connected with flue 2 usefulness flanges 8.The export pipeline of air blast 5 connects the inlet a of air preheater 3, and the outlet b pipeline of air preheater 3 connects burner 4 through set air channel 6.

Air preheater 3 is a shell-and-tube heat exchanger, and its two ends are equipped with tube sheet 9, some heat exchanger tubes 10 of pegging graft between the two ends tube sheet 9, and heat exchanger tube 10 is finned tubes.Its tube side is that exhaust gases passes, shell side are air duct, is provided with air intake a and outlet b on the housing 11 of air preheater 3.

Shell side in the air preheater 3 is provided with at least one deflection plate that fixes with it 7, increase the time of staying of air in air preheater, it can be contacted with heat exchanger tube fully, make air reach higher temperature, simultaneously also reduce the exhaust gas discharging temperature effectively, reduced environmental pollution.

With the heat-treatment furnace is example: former heat-treatment furnace does not generally have waste-heat recovery device, exhaust gas temperature is generally about 500~650 ℃, use heating furnace of the present invention, exhaust gas temperature can be reduced to about 200 ℃, space temperature is preheating to about 300~400 ℃, improves heat-treatment furnace efficient about 20~30%.

Claims (5)

1. the efficient heat-treatment furnace of flue gas waste heat recovery utilization, be to constitute by heating furnace (1), flue (2), air preheater (3) and burner (4), it is characterized in that in the flue (2) at heating furnace (1) top, air preheater (3) being installed, the export pipeline of air blast (5) connects the inlet a of air preheater (3), and the outlet b pipeline of air preheater (3) connects burner (4) through set air channel (6).
2. the efficient heat-treatment furnace of flue gas waste heat recovery utilization as claimed in claim 1 is characterized in that air preheater (3) is a shell-and-tube heat exchanger, and its two ends are equipped with tube sheet (9), are fixed with heat exchanger tube (10) between the two ends tube sheet (9).
3. the efficient heat-treatment furnace of flue gas waste heat recovery utilization as claimed in claim 2 is characterized in that heat exchanger tube (10) is a finned tube.
4. as claim 1 or the efficient heat-treatment furnace of 2 or 3 described flue gas waste heat recovery utilizations, it is characterized in that the shell side in the air preheater (3) is provided with at least one deflection plate (7).
5. as claim 1 or the efficient heat-treatment furnace of 2 or 3 described flue gas waste heat recovery utilizations, the tube side that it is characterized in that air preheater (3) is that exhaust gases passes, shell side are air duct.
CN2011100425436A 2011-02-22 2011-02-22 Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat CN102072664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100425436A CN102072664A (en) 2011-02-22 2011-02-22 Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100425436A CN102072664A (en) 2011-02-22 2011-02-22 Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat

Publications (1)

Publication Number Publication Date
CN102072664A true CN102072664A (en) 2011-05-25

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CN (1) CN102072664A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102701555A (en) * 2012-07-02 2012-10-03 西南石油大学 Oily sludge treatment pool
CN102777924A (en) * 2012-07-09 2012-11-14 黑龙江建龙钢铁有限公司 Residual heat utilizing process and device of gas conduction oil furnace
CN102997696A (en) * 2012-11-28 2013-03-27 江苏宜达光电科技有限公司 Air preheater of kiln
CN103217021A (en) * 2013-05-06 2013-07-24 无锡盛力达科技股份有限公司 Open firing heat treatment furnace tail gas recovery device
CN103712464A (en) * 2012-10-09 2014-04-09 丹阳市江南工业炉有限公司 Smoke outlet waste heat reutilization device
CN105403059A (en) * 2015-11-21 2016-03-16 章丘市海利机械制造有限公司 Waste-heat utilization device for fuel gas type controlled atmosphere multi-purpose furnace and heat supply system with waste-heat utilization device
CN105495651A (en) * 2015-12-17 2016-04-20 江苏杰英能源科技有限公司 Waste heat recovery mechanism of vegetable dehydration device
CN105953409A (en) * 2016-06-27 2016-09-21 河南中托力合化学有限公司 Vertical energy saving device for fuel gas heating medium furnace
CN111256159A (en) * 2020-01-21 2020-06-09 山东大学 Heat exchanger, heat exchange system and method for deep recovery of flue gas waste heat of gas-fired boiler

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2216198Y (en) * 1995-03-20 1995-12-27 成都发动机公司 Double-element thermal compensation tube-and-plate high-temp. air preheater
CN2323269Y (en) * 1997-12-30 1999-06-09 钟家生 Vertical multipurpose incinerating and water heating furnace
CN2573978Y (en) * 2002-10-22 2003-09-17 刘智泉 Adjustable air supply device for flue heat exchange of heating furnace
JP2005042999A (en) * 2003-07-24 2005-02-17 Kyowa Exeo Corp Ash melting facility
CN201103894Y (en) * 2007-12-04 2008-08-20 安庆林 Saturated steam heating stove
CN201218517Y (en) * 2008-05-08 2009-04-08 青岛德固特机械制造有限公司 High temperature air pre-heater
CN201242266Y (en) * 2008-07-09 2009-05-20 刘培生 Tube type heating stove
CN201909551U (en) * 2011-02-22 2011-07-27 刘智泉 Flue gas waste heat-recycling high-efficient heat treatment furnace

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2216198Y (en) * 1995-03-20 1995-12-27 成都发动机公司 Double-element thermal compensation tube-and-plate high-temp. air preheater
CN2323269Y (en) * 1997-12-30 1999-06-09 钟家生 Vertical multipurpose incinerating and water heating furnace
CN2573978Y (en) * 2002-10-22 2003-09-17 刘智泉 Adjustable air supply device for flue heat exchange of heating furnace
JP2005042999A (en) * 2003-07-24 2005-02-17 Kyowa Exeo Corp Ash melting facility
CN201103894Y (en) * 2007-12-04 2008-08-20 安庆林 Saturated steam heating stove
CN201218517Y (en) * 2008-05-08 2009-04-08 青岛德固特机械制造有限公司 High temperature air pre-heater
CN201242266Y (en) * 2008-07-09 2009-05-20 刘培生 Tube type heating stove
CN201909551U (en) * 2011-02-22 2011-07-27 刘智泉 Flue gas waste heat-recycling high-efficient heat treatment furnace

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102701555A (en) * 2012-07-02 2012-10-03 西南石油大学 Oily sludge treatment pool
CN102701555B (en) * 2012-07-02 2013-08-14 西南石油大学 Oily sludge treatment pool
CN102777924A (en) * 2012-07-09 2012-11-14 黑龙江建龙钢铁有限公司 Residual heat utilizing process and device of gas conduction oil furnace
CN103712464A (en) * 2012-10-09 2014-04-09 丹阳市江南工业炉有限公司 Smoke outlet waste heat reutilization device
CN102997696A (en) * 2012-11-28 2013-03-27 江苏宜达光电科技有限公司 Air preheater of kiln
CN103217021A (en) * 2013-05-06 2013-07-24 无锡盛力达科技股份有限公司 Open firing heat treatment furnace tail gas recovery device
CN105403059A (en) * 2015-11-21 2016-03-16 章丘市海利机械制造有限公司 Waste-heat utilization device for fuel gas type controlled atmosphere multi-purpose furnace and heat supply system with waste-heat utilization device
CN105495651A (en) * 2015-12-17 2016-04-20 江苏杰英能源科技有限公司 Waste heat recovery mechanism of vegetable dehydration device
CN105953409A (en) * 2016-06-27 2016-09-21 河南中托力合化学有限公司 Vertical energy saving device for fuel gas heating medium furnace
CN111256159A (en) * 2020-01-21 2020-06-09 山东大学 Heat exchanger, heat exchange system and method for deep recovery of flue gas waste heat of gas-fired boiler

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Application publication date: 20110525