CN102206742A - Waste hydrogen combustion system for full-hydrogen bell-type furnace used for bright annealing - Google Patents

Waste hydrogen combustion system for full-hydrogen bell-type furnace used for bright annealing Download PDF

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Publication number
CN102206742A
CN102206742A CN 201110187848 CN201110187848A CN102206742A CN 102206742 A CN102206742 A CN 102206742A CN 201110187848 CN201110187848 CN 201110187848 CN 201110187848 A CN201110187848 A CN 201110187848A CN 102206742 A CN102206742 A CN 102206742A
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Prior art keywords
hydrogen
burner
arm
useless hydrogen
pipeline
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CN 201110187848
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CN102206742B (en
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罗伯特·艾伯纳
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Ebner Industrial Furnaces (Taicang) Co Ltd
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Ebner Industrial Furnaces (Taicang) Co Ltd
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Abstract

The invention relates to a waste hydrogen combustion system for a full-hydrogen bell-type furnace used for bright annealing. The waste hydrogen combustion system comprises a main burner, a waste hydrogen burner and an auxiliary burner which are fixed on a shell, and a gas pipeline, a waste hydrogen pipeline and an air pipeline which are distributed on the shell, wherein the main burner is connected with the gas pipeline and the air pipeline; the waste hydrogen burner is connected with the waste hydrogen pipeline and the air pipeline; the auxiliary burner is connected with the gas pipeline and the air pipeline; and the flame combustion direction of the waste hydrogen burner is tangent to the outer wall of an inner covered muffle and is not contacted with the outer wall of the inner covered muffle. The flame combustion direction of the waste hydrogen burner can ensure the best heat conduction efficiency and avoid damage or deformation caused by overhigh local temperature due to direct contact of flames and a muffle cover; the auxiliary burner has two electrodes, and when the ignition failure times is greater than a set value, a combustion chamber is needed to be blown, residual hydrogen is blown, and blast is prevented; and energy loss is reduced, the using amount of gas is reduced, and the environmental pollution is lightened.

Description

The useless hydrogen burning system of perhydro bell furnace that is used for clean annealing
Technical field
The present invention relates to the industrial annealing field in metallurgical the manufacturing, particularly relate to a kind of useless hydrogen burning system of perhydro bell furnace that is used for clean annealing.
Background technology
The perhydro bell furnace is applicable to the recrystallize clean annealing to cold rolling coil, production less energy-consumption, high quality, high yield.Along with developing rapidly of industry, the demand to high-quality sheet metal on the market constantly increases, and bell type annealing furnace, especially perhydro strong convection bell type annealing furnace have obtained application more and more widely as the advanced Equipment for Heating Processing to strip material clean annealing.
Its principle is exactly to adopt hydrogen as protective atmosphere in annealing process, avoiding material oxidation, thereby reaches the purpose of clean annealing.Yet, use hydrogen as protective atmosphere, in heat-processed, have a large amount of useless hydrogen that is mixed with volatilization ROLLING OIL, emulsion and be discharged in the atmosphere, not only caused environmental pollution but also wasted the energy.
Summary of the invention
The object of the invention provides a kind of useless hydrogen burning system of perhydro bell furnace that is used for clean annealing.
For achieving the above object, the technical solution used in the present invention is:
A kind of useless hydrogen burning system of perhydro bell furnace that is used for clean annealing, comprise the main burner that is fixed on the housing, useless hydrogen burner and auxiliary burning nozzle, be distributed in the gas pipeline on the described housing, useless hydrogen pipeline and air line, described main burner is connected with described gas pipeline, air line; Described useless hydrogen burner is connected with described useless hydrogen pipeline, air line; Described auxiliary burning nozzle is connected with described gas pipeline, air line, and the flame direction and the inner cover horse outer wall not of described useless hydrogen burner are tangent, and does not contact with inner cover horse outer wall not.
Preferably, described air line is arranged with first arm, second arm, the 3rd arm and the 4th arm, described first arm is connected with described main burner, described second arm is connected with described useless hydrogen burner, and described the 3rd arm, the 4th arm are connected with described auxiliary burning nozzle.
Further preferably, described first arm is connected with interchanger.
Further preferably, the front end of described useless hydrogen burner is provided with proportional control valve, and described proportional control valve is used to control described second arm, useless hydrogen pipeline is connected with described useless hydrogen burner.
Further preferably, the front end of described auxiliary burning nozzle is provided with safety valve, and described safety valve is used to control described the 4th arm, gas pipeline is connected with described auxiliary burning nozzle.Preferably, described the 4th arm is provided with the plate hole setting device.
Preferably, described auxiliary burning nozzle is provided with spark electrode, monitoring electrode.
Further preferably, described useless hydrogen burning system is provided with the purging hydrogen device, and described purging hydrogen device is connected with the monitoring electrode signal or is electrically connected.
Because the technique scheme utilization, the present invention compared with prior art has following advantage and effect:
1, the flame direction and the inner cover horse outer wall not of useless hydrogen burner are tangent, and do not contact with inner cover horse outer wall not, so both can guarantee best heat conduction efficiency, and can avoid flame directly to contact the inner cover body and cause too high damage that produces of local temperature or distortion again;
2, two electrodes are adopted in the igniting of auxiliary burning nozzle, then need the combustion chamber is purged when the loss of ignition number of times surpasses set(ting)value, purge residual hydrogen, prevent to fire;
3, the cyclic high-temperature oil flue waste gas that generates in the process furnace burns away in heating mantles, has reduced energy loss, has reduced gas consumption, has also alleviated the pollution to environment simultaneously.
Description of drawings
Accompanying drawing 1 is the layout synoptic diagram of three burners among the present invention;
Accompanying drawing 2 is the schematic diagram of firing system among the present invention.
Wherein: 1, housing; 10, the inner cover horse not; 2, main burner; 3, useless hydrogen burner; 4, auxiliary burning nozzle; 5, gas pipeline; 6, useless hydrogen pipeline; 7, air line; 70, first arm; 71, second arm; 72, the 3rd arm; 73, the 4th arm; 8, interchanger; 9, proportional control valve; 11, safety valve.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
A kind of useless hydrogen burning system of perhydro bell furnace that is used for clean annealing comprises the main burner 2 that is fixed on the housing 1, useless hydrogen burner 3 and auxiliary burning nozzle 4, as shown in Figure 1; Be distributed in the gas pipeline 5 on the housing 1, useless hydrogen pipeline 6 and air line 7, wherein: air line 7 is arranged with first arm 70, second arm 71, the 3rd arm 72 and the 4th arm 73.
As shown in Figure 2:
The main burner 2 main heating works of being responsible for annealing furnace.Main burner 2 is connected with first arm 71 with gas pipeline 5 respectively, the combustion air of first arm 70 of flowing through through interchanger 8 preheatings after with gas pipeline 5 in combustion gas mixing, enter main burner 2 again and burn.
Useless hydrogen burner 3 is responsible for the useless hydrogen in the stove is carried out reignition.Useless hydrogen burner 3 is connected with second arm 71 with useless hydrogen pipeline 6, and the front end of useless hydrogen burner 3 is provided with a proportional control valve 9, proportional control valve 9 is used to control second arm 71, useless hydrogen pipeline 6 is connected with useless hydrogen burner 3, useless hydrogen in the useless hydrogen pipeline 6 must mix the safe concentration that reaches required with combustion air in second arm 71, just can enter useless hydrogen burner 3 and burn, thereby eliminate safe hidden trouble.The flame direction of useless hydrogen burner 3 and inner cover horse not 10 outer wall are tangent, and do not contact inner cover horse not 10, so both can guarantee best heat conduction efficiency, and can avoid flame directly to contact inner cover horse not 10 and cause too high damage that produces of local temperature or distortion again.
Auxiliary burning nozzle 4 is burner kept burning day and night again, in whole annealing process procedure, auxiliary burning nozzle 4 remains burning, and auxiliary burning nozzle 4 is connected with gas pipeline 5, the 3rd arm 72, the 4th arm 73, and the combustion air in the 3rd arm 72 directly enters auxiliary burning nozzle 4 and carries out combustion-supporting.The front end of auxiliary burning nozzle 4 is provided with safety valve 11, safety valve is used to control the 4th arm 73, gas pipeline 5 is connected with auxiliary burning nozzle 4, before combustion air entered, safety valve 11 was in closing condition, thereby stoped combustion gas to enter auxiliary burning nozzle 4 in case combustion gas leakage accident takes place; When combustion-supporting air admission was arranged, safety valve 11 was opened automatically, and combustion gas enters, and was mixed into auxiliary burning nozzle 4 with combustion air and burnt.In addition, the 4th arm 73 is provided with the orifice plate setting device, air-fuel ratio can be adjusted to optimum, thereby reaches abundant burning to reduce exhaust gas emission.
Two electrodes are adopted in the igniting of auxiliary burning nozzle 4: spark electrode, monitoring electrode, when the loss of ignition number of times surpasses set(ting)value, connect with signal with monitoring electrode or the purging hydrogen device that is electrically connected purges the combustion chamber, and purge residual hydrogen, prevent to fire.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (8)

1. useless hydrogen burning system of the perhydro bell furnace that is used for clean annealing, it is characterized in that: comprise the main burner that is fixed on the housing, useless hydrogen burner and auxiliary burning nozzle, be distributed in the gas pipeline on the described housing, useless hydrogen pipeline and air line, described main burner is connected with described gas pipeline, air line; Described useless hydrogen burner is connected with described useless hydrogen pipeline, air line; Described auxiliary burning nozzle is connected with described gas pipeline, air line, and the flame direction and the inner cover horse outer wall not of described useless hydrogen burner are tangent, and does not contact with inner cover horse outer wall not.
2. the useless hydrogen burning system of perhydro bell furnace that is used for clean annealing according to claim 1, it is characterized in that: described air line is arranged with first arm, second arm, the 3rd arm and the 4th arm, described first arm is connected with described main burner, described second arm is connected with described useless hydrogen burner, and described the 3rd arm, the 4th arm are connected with described auxiliary burning nozzle.
3. the useless hydrogen burning system of perhydro bell furnace that is used for clean annealing according to claim 2, it is characterized in that: described first arm is connected with interchanger.
4. the useless hydrogen burning system of perhydro bell furnace that is used for clean annealing according to claim 2, it is characterized in that: the front end of described useless hydrogen burner is provided with proportional control valve, and described proportional control valve is used to control described second arm, useless hydrogen pipeline is connected with described useless hydrogen burner.
5. the useless hydrogen burning system of perhydro bell furnace that is used for clean annealing according to claim 2, it is characterized in that: the front end of described auxiliary burning nozzle is provided with safety valve, and described safety valve is used to control described the 4th arm, gas pipeline is connected with described auxiliary burning nozzle.
6. the useless hydrogen burning system of perhydro bell furnace that is used for clean annealing according to claim 5, it is characterized in that: described the 4th arm is provided with the plate hole setting device.
7. the useless hydrogen burning system of perhydro bell furnace that is used for clean annealing according to claim 1, it is characterized in that: described auxiliary burning nozzle is provided with spark electrode, monitoring electrode.
8. the useless hydrogen burning system of the perhydro bell furnace that is used for clean annealing according to claim 7 is characterized in that: described useless hydrogen burning system is provided with the purging hydrogen device, and described purging hydrogen device is connected with the monitoring electrode signal or is electrically connected.
CN 201110187848 2011-07-06 2011-07-06 Waste hydrogen combustion system for full-hydrogen bell-type furnace used for bright annealing Active CN102206742B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424910A (en) * 2011-11-28 2012-04-25 中冶南方(武汉)威仕工业炉有限公司 Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same
CN102679352A (en) * 2012-05-05 2012-09-19 中冶南方(武汉)威仕工业炉有限公司 Flat-flame nozzle with automatic ignition and flame detection device
CN102819649A (en) * 2012-08-15 2012-12-12 北京科技大学 Design method of creep life of large-sized bright annealing muffle tube and like

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101381808A (en) * 2008-10-24 2009-03-11 江苏凯特尔工业炉有限公司 Waste hydrogen burning apparatus for whole hydrogen gas bell-type annealing furnace
CN202201941U (en) * 2011-07-06 2012-04-25 艾伯纳工业炉(太仓)有限公司 Waste hydrogen combustion system of full-hydrogen bell-type furnace for bright annealing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101381808A (en) * 2008-10-24 2009-03-11 江苏凯特尔工业炉有限公司 Waste hydrogen burning apparatus for whole hydrogen gas bell-type annealing furnace
CN202201941U (en) * 2011-07-06 2012-04-25 艾伯纳工业炉(太仓)有限公司 Waste hydrogen combustion system of full-hydrogen bell-type furnace for bright annealing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424910A (en) * 2011-11-28 2012-04-25 中冶南方(武汉)威仕工业炉有限公司 Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same
CN102424910B (en) * 2011-11-28 2013-04-17 中冶南方(武汉)威仕工业炉有限公司 Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same
CN102679352A (en) * 2012-05-05 2012-09-19 中冶南方(武汉)威仕工业炉有限公司 Flat-flame nozzle with automatic ignition and flame detection device
CN102679352B (en) * 2012-05-05 2015-05-13 中冶南方(武汉)威仕工业炉有限公司 Flat-flame nozzle with automatic ignition and flame detection device
CN102819649A (en) * 2012-08-15 2012-12-12 北京科技大学 Design method of creep life of large-sized bright annealing muffle tube and like
CN102819649B (en) * 2012-08-15 2014-10-15 北京科技大学 Design method of creep life of large-sized bright annealing muffle tube and like

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