CN104061678B - Heart-shaped heat exchanger tube multitube high temperature hot-blast furnace - Google Patents

Heart-shaped heat exchanger tube multitube high temperature hot-blast furnace Download PDF

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Publication number
CN104061678B
CN104061678B CN201410344006.0A CN201410344006A CN104061678B CN 104061678 B CN104061678 B CN 104061678B CN 201410344006 A CN201410344006 A CN 201410344006A CN 104061678 B CN104061678 B CN 104061678B
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air
exchanger tube
heart
heat
heat exchanger
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CN104061678A (en
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杨恒灼
杨家顺
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QUANZHOU HENGZHUO THERMAL MECHANICAL TECHNOLOGY Co Ltd
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QUANZHOU HENGZHUO THERMAL MECHANICAL TECHNOLOGY Co Ltd
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Abstract

nullA kind of heart-shaped heat exchanger tube multitube high temperature hot-blast furnace,Including body of heater、The combustor being arranged in body of heater、Dirt pocket and Heat Room,Body of heater is respectively provided on two sides with air inlet and air outlet,Air outlet upper end is provided with inlet air plenum,Mezzanine space is had between body of heater and Heat Room,This mezzanine space is waste heat air-return duct,Waste heat air-return duct one end connects with air inlet,The other end connects with inlet air plenum,It is provided with many levels in Heat Room and runs through the heart-shaped heat exchanger tube of Heat Room,The heart-shaped tip of heart-shaped heat exchanger tube is down,Two heart-shaped hypotenuses are heating surface,Heat Room inner vertical shaft is to being provided with polylith baffle plate,Heat Room side is communicated with the air chamber of heat exchanger tube,In Heat Room, the heat exchanger tube of top half connects with inlet air plenum,In Heat Room, the heat exchanger tube of the latter half connects with air outlet,Heat Room is arranged over flue gas inlet chamber and flue gas outlet chamber,Flue gas inlet chamber connects with air chamber,Flue gas inlet chamber and flue gas outlet chamber are connected by many horizontally disposed warm-air pipes,Exhaustor is connected on flue gas outlet chamber.

Description

Heart-shaped heat exchanger tube multitube high temperature hot-blast furnace
Technical field
The present invention relates to the air stove of a kind of biomass fuel, particularly relate to a kind of multitube high temperature hot-blast furnace using heart-shaped heat exchanger tube, belong to technical field of heat exchange.
Background technology
Air stove as thermal power machinery started extensively to apply in China in late 1970s, and it has become electric heat source and the regeneration product of conventional vapor power heat source in many industries.By long production practices, it has been realised that only utilize hot blast could improve heat utilization efficiency and hot working effect larger as medium and carrier.But, air stove traditional on market is taked: heavy combustion combustion system, and with the ancient combustion system of fire grate structure air supply at the bottom, the combustion rate of fuel is extremely low, causes mass energy waste and air pollution;In addition using tub by hot mode, heating surface area is minimum, and substantial amounts of heat energy not and obtains changing just with in fume emission to air, causes substantial amounts of heat energy loss to waste.
Changed tub into tubular type by hot mode by hot mode although recently also having on market, but just towards for the pipe heating surface area in fire face, its heating surface area, less than the 50% of periphery area, not yet reaches maximization.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of heart-shaped heat exchanger tube multitube high temperature hot-blast furnace, with " heart-shaped " two hypotenuse areas much larger than the principle of " recessed " limit area, if two hypotenuses are heating surface, reaches the maximization of heating surface area.
The technical solution adopted in the present invention is: a kind of heart-shaped heat exchanger tube multitube high temperature hot-blast furnace, combustor, dirt pocket and the Heat Room including body of heater, being arranged in body of heater, Heat Room is located at above combustor and dirt pocket, body of heater is respectively provided on two sides with air inlet and air outlet, air outlet upper end is provided with inlet air plenum, has mezzanine space between body of heater and Heat Room, and this mezzanine space is waste heat air-return duct, waste heat air-return duct one end connects with air inlet, and the other end connects with inlet air plenum.It is provided with many levels in Heat Room and runs through the heart-shaped heat exchanger tube of Heat Room, the heart-shaped tip of heart-shaped heat exchanger tube is down, two heart-shaped hypotenuses are heating surface, Heat Room inner vertical shaft is to being provided with polylith baffle plate, Heat Room side is communicated with the air chamber of heat exchanger tube, in Heat Room, the heat exchanger tube of top half connects with inlet air plenum, and in Heat Room, the heat exchanger tube of the latter half connects with air outlet.Heat Room is arranged over flue gas inlet chamber and flue gas outlet chamber, and flue gas inlet chamber connects with air chamber, and flue gas inlet chamber and flue gas outlet chamber are connected by many horizontally disposed warm-air pipes, and flue gas outlet chamber connects exhaustor, and exhaustor is communicated to outside body of heater.
Have charge door on the body of heater of sidewall of combustion chamber, the body of heater of dirt pocket sidewall has gray-drawing port.
Baffle plate is provided with three pieces, the width being wherein located at two pieces of middle baffle plates of Heat Room is consistent with Heat Room width, highly less than Heat Room height, two pieces of baffle plates connect formation closed sandwich, and the 3rd piece of barrier width and the height of being located at corresponding dirt pocket middle upper part are all equal with Heat Room.
By Flange joint smoke exhaust fan at exhaustor, air filter screen is set in junction, filters flue gas further, to reach emission request.
The invention has the beneficial effects as follows: use the multitube heat exchange mode of heart-shaped heat exchanger tube, down, two heart-shaped hypotenuses are heating surface, reach the heat exchanger tube heat exchange area i.e. maximization of the thermal efficiency in the heart-shaped tip of heart-shaped heat exchanger tube;Polylith baffle plate in Heat Room is set, Heat Room is separated into circuitous channel, extend high-temperature flue gas walking distance in Heat Room and time, improve heat exchange efficiency further;Body of heater not only acts as heat-insulation layer effect with the waste heat air-return duct of the mezzanine space formation of Heat Room, effectively reduces heat losses, and recyclable waste heat, and the thermal efficiency improves again;Combustion product gases is set by after dirt pocket dedusting, then discharges after strainer filtering, reach minimizing of energy-conservation maximization and soot emissions.
Accompanying drawing explanation
The present invention is further described below in conjunction with the accompanying drawings:
Fig. 1 is structure and the high-temperature hot-air flow schematic diagram of the present invention;
Fig. 2 is the top cross-sectional view of the present invention;
Fig. 3 is the cross sectional representation of heart-shaped heat exchanger tube.
In figure 1, body of heater, 2, combustor, 3, dirt pocket, 4, Heat Room, 5, air inlet, 6, air outlet, 7, inlet air plenum, 8, waste heat air-return duct, 9, heat exchanger tube, 10, baffle plate, 11, air chamber, 12, flue gas inlet chamber, 13, flue gas outlet chamber, 14, warm-air pipe, 15, exhaustor, 16, charge door, 17, gray-drawing port, 18, closed sandwich, 19, heart-shaped hypotenuse, 20, heart-shaped tip.
Detailed description of the invention
In the embodiment in figure 1, multitube high temperature hot-blast furnace is made up of body of heater 1, combustor 2, dirt pocket 3 and Heat Room 4 in body of heater 1, Heat Room 4 is above combustor 2 and dirt pocket 3, there are air inlet 5 and air outlet 6 in body of heater 1 both sides, there is inlet air plenum 7 air outlet 6 upper end, mezzanine space between body of heater 1 and Heat Room 4 forms waste heat air-return duct 8, waste heat air-return duct 8 one end UNICOM air inlet 5, other end UNICOM inlet air plenum 7.Having many horizontally disposed heat exchanger tubes 9 in Heat Room 4, have baffle plate 10, Heat Room 4 side to have the air chamber 11 of connection heat exchanger tube 9 in Heat Room 4, in Heat Room 4, the heat exchanger tube 9 of top half connects with inlet air plenum 7, and the heat exchanger tube 9 of the latter half connects with air outlet 6.
In the embodiment of fig. 2, body of heater 1 top i.e. Heat Room 4 is arranged over flue gas inlet chamber 12 and flue gas outlet chamber 13, flue gas inlet chamber 12 connects with air chamber 11, flue gas inlet chamber 12 and flue gas outlet chamber 13 are connected by many horizontally disposed warm-air pipes 14, connecting exhaustor 15 on flue gas outlet chamber 13, exhaustor 15 is communicated to outside body of heater 1.
In the fig. 3 embodiment, the heart-shaped tip 20 of heart-shaped heat exchanger tube 9 is down, two heart-shaped hypotenuses 19 are heating surface.
Have charge door 16 on the body of heater 1 of combustor 2 sidewall, the body of heater 1 of dirt pocket 3 sidewall has gray-drawing port 17.It is located at two pieces of baffle plates 10 in the middle of Heat Room 4 and connects formation closed sandwich 18.
Embodiment 1: biomass fuel is converted into fuel gas by combustor 2, fuel gas burns into thermal-flame in the environment of combustor 2 high temperature and naked light, flame enters Heat Room 4 with flue gas and dust, because being heart-shaped design across the heat exchanger tube 9 at Heat Room 4, and its heart-shaped tip 20 is down, first thermal-flame toasts the heart-shaped hypotenuse 19 of Heat Room 4 the latter half heat exchanger tube 9, heat is preached in heat exchanger tube 9 by the metal pipe-wall of heat exchanger tube 9, and heating the wind in pipe makes high-temperature hot-air;Thermal-flame continues up, in like manner the wind in the heat exchanger tube 9 of heating Heat Room 4 top half.Because heat exchanger tube 9 is multi-layer multi-row dislocation design, the passage of flame reserved is circuitous channel and small space, and flame is high at the heat transfer rate of Heat Room 4, continues up flame with flue gas with dust and has become waste heat.
Embodiment 2: certainly continue up flame with flue gas and dust and complete after the heat exchange of Heat Room 4, air chamber 11 is entered into waste heat, dust enters dirt pocket 3 after air chamber 11 precipitates, flue gas enters into flue gas outlet chamber 13 through warm-air pipe 14 after entering flue gas inlet chamber 12, and the exhaustor 15 that last flue gas connects from flue gas outlet chamber 13 is discharged.
Embodiment 3: waste heat, converges with the cold wind entered from air inlet 5 with dust after air chamber 11 precipitates below cold wind mouth, and the waste heat of first path is recycled;Flue gas takes away part of waste heat equally, the flue gas of flue gas outlet chamber 13 is entered into through warm-air pipe 14, heating warm-air pipe 14, cold wind via around the top of waste heat air-return duct 8 of combustor 2 time, with warm-air pipe 14 heat exchange, enter inlet air plenum 7 after taking away the waste heat in the second path, then entered heat exchanger tube 9 by inlet air plenum 7, in promoting heat exchanger tube 9, hot blast enters air outlet 6, and cold wind continues to be heated by thermal-flame.After the high-temperature flue gas of combustor 2 enters Heat Room 4, contrary with the air direct in heat exchanger tube 9 carrying out heat exchange, last hot blast exports from air outlet 6.

Claims (4)

1. one kind heart-shaped heat exchanger tube multitube high temperature hot-blast furnace, it is characterized in that: heart-shaped heat exchanger tube multitube high temperature hot-blast furnace includes body of heater, the combustor being arranged in body of heater, dirt pocket and Heat Room, Heat Room is located at above combustor and dirt pocket, body of heater is respectively provided on two sides with air inlet and air outlet, air outlet upper end is provided with inlet air plenum, has mezzanine space between body of heater and Heat Room, and this mezzanine space is waste heat air-return duct, waste heat air-return duct one end connects with air inlet, and the other end connects with inlet air plenum;It is provided with many levels in Heat Room and runs through the heart-shaped heat exchanger tube of Heat Room, the heart-shaped tip of heart-shaped heat exchanger tube is down, two heart-shaped hypotenuses are heating surface, Heat Room inner vertical shaft is to being provided with polylith baffle plate, Heat Room side is communicated with the air chamber of heat exchanger tube, in Heat Room, the heat exchanger tube of top half connects with inlet air plenum, and in Heat Room, the heat exchanger tube of the latter half connects with air outlet;Heat Room is arranged over flue gas inlet chamber and flue gas outlet chamber, and flue gas inlet chamber connects with air chamber, and flue gas inlet chamber and flue gas outlet chamber are connected by many horizontally disposed warm-air pipes, and flue gas outlet chamber connects exhaustor, and exhaustor is communicated to outside body of heater.
A kind of heart-shaped heat exchanger tube multitube high temperature hot-blast furnace, it is characterised in that: have charge door on the body of heater of described sidewall of combustion chamber, the body of heater of dirt pocket sidewall has gray-drawing port.
A kind of heart-shaped heat exchanger tube multitube high temperature hot-blast furnace, it is characterized in that: described baffle plate is provided with three pieces, wherein it is located at that two pieces of barrier width in the middle of Heat Room are equal with Heat Room, height the most respectively less than Heat Room, two pieces of baffle plates connect formation closed sandwich, and the 3rd piece of barrier width and the height of being located at corresponding dirt pocket middle upper part are all equal with Heat Room.
A kind of heart-shaped heat exchanger tube multitube high temperature hot-blast furnace, it is characterised in that: with smoke exhaust fan at described exhaustor, both, with Flange joint, are provided with air filter screen in junction.
CN201410344006.0A 2014-07-20 2014-07-20 Heart-shaped heat exchanger tube multitube high temperature hot-blast furnace Active CN104061678B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106679174B (en) * 2016-12-29 2023-09-08 广东工业大学 High-temperature hot-air furnace

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191129094A (en) * 1910-12-24 1912-06-06 Meyer Rud Otto Improvements in Heat Exchangers.
CN2295964Y (en) * 1997-06-13 1998-10-28 郭立春 Coal hot air furnace
KR20040031753A (en) * 2004-03-24 2004-04-13 박병영 A warm air circulator for solid fuel
KR200367221Y1 (en) * 2004-08-25 2004-11-10 강동국 a heating apparatus
CN101666541A (en) * 2009-09-30 2010-03-10 宫树同 Double-medium hot-blast furnace
CN201615598U (en) * 2009-03-23 2010-10-27 李秉公 Horizontal type coal-fired hot blast furnace
CN201672668U (en) * 2010-06-17 2010-12-15 青州市硕阳热风炉厂 Energy-saving hot-blast furnace
CN201731623U (en) * 2010-05-04 2011-02-02 潍坊市润捷轻工环保科技有限公司 Hot air furnace
CN202419924U (en) * 2012-02-03 2012-09-05 常州市鼎龙环保设备有限公司 Smoke and dust settling chamber used for heat exchanger of hot blast heater
CN102705981A (en) * 2012-06-21 2012-10-03 苏州源申涂装净化设备有限公司 Top combustion type heat exchange device
CN202470410U (en) * 2011-12-09 2012-10-03 陈玉涛 A coal hot air furnace
CN202630400U (en) * 2012-05-22 2012-12-26 张文 Hot-blast stove

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191129094A (en) * 1910-12-24 1912-06-06 Meyer Rud Otto Improvements in Heat Exchangers.
CN2295964Y (en) * 1997-06-13 1998-10-28 郭立春 Coal hot air furnace
KR20040031753A (en) * 2004-03-24 2004-04-13 박병영 A warm air circulator for solid fuel
KR200367221Y1 (en) * 2004-08-25 2004-11-10 강동국 a heating apparatus
CN201615598U (en) * 2009-03-23 2010-10-27 李秉公 Horizontal type coal-fired hot blast furnace
CN101666541A (en) * 2009-09-30 2010-03-10 宫树同 Double-medium hot-blast furnace
CN201731623U (en) * 2010-05-04 2011-02-02 潍坊市润捷轻工环保科技有限公司 Hot air furnace
CN201672668U (en) * 2010-06-17 2010-12-15 青州市硕阳热风炉厂 Energy-saving hot-blast furnace
CN202470410U (en) * 2011-12-09 2012-10-03 陈玉涛 A coal hot air furnace
CN202419924U (en) * 2012-02-03 2012-09-05 常州市鼎龙环保设备有限公司 Smoke and dust settling chamber used for heat exchanger of hot blast heater
CN202630400U (en) * 2012-05-22 2012-12-26 张文 Hot-blast stove
CN102705981A (en) * 2012-06-21 2012-10-03 苏州源申涂装净化设备有限公司 Top combustion type heat exchange device

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