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CN102425809A - Ignition electrode suitable for multiple radiant tube burners - Google Patents

Ignition electrode suitable for multiple radiant tube burners Download PDF

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Publication number
CN102425809A
CN102425809A CN2011103851172A CN201110385117A CN102425809A CN 102425809 A CN102425809 A CN 102425809A CN 2011103851172 A CN2011103851172 A CN 2011103851172A CN 201110385117 A CN201110385117 A CN 201110385117A CN 102425809 A CN102425809 A CN 102425809A
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China
Prior art keywords
electrode
tube
cooling air
sparking
wire
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Application number
CN2011103851172A
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Chinese (zh)
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CN102425809B (en
Inventor
高阳
徐少春
沈小军
李飞
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Wisdri Wuhan Wis Industrial Furnace Co Ltd
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Wisdri Wuhan Wis Industrial Furnace Co Ltd
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Priority to CN201110385117.2A priority Critical patent/CN102425809B/en
Publication of CN102425809A publication Critical patent/CN102425809A/en
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Publication of CN102425809B publication Critical patent/CN102425809B/en
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Abstract

The invention relates to an ignition electrode suitable for multiple radiant tube burners. An electrode wire passes through an ignition head and is fixed with the ignition head, an ignition tripod is fixedly arranged at the right end of an electrode tube, and an insulated ceramic tube passes through a circular through hole in the center of the ignition tripod and is positioned and fixed; an electrode catheter is arranged outside the electrode tube, and the right end of the electrode catheter is connected with an electrode mounting hole in a burner combustion chamber; the right end of an electrode mounting joint is connected with a connector, and an electrode head is arranged at the left end of the electrode mounting joint; the left end of the electrode catheter is connected with one horizontal end of a cooling air sleeve of a three-way structure; and the other horizontal end of the cooling air sleeve is connected with the connector, and the cooling air port of the cooling air sleeve in the vertical direction is communicated with a ring seam between the electrode catheter and the electrode tube. The single electrode realizes automatic ignition and flame monitoring functions, and is suitable for multiple radiant tube burners; the ignition electrode wire is insulated and encircled in the whole travel, so that ignition of side walls and surface oxidation of the electrode wire are effectively avoided; and the cooling air effectively reduces the temperatures of the electrode ignition head and the tripod, so that the service life of the electrode is greatly prolonged.

Description

Be applicable to the ignitor of multiple radiation pipe burner tip
Technical field
The present invention relates to burner igniter technical field, relate in particular to a kind of device that can light a fire to various radiation pipe burner tips of being applied on the radiant tube.
Background technology
In band steel continuous heat field, in order to realize that gas fired radiant tubes has obtained application more and more widely with the scale-free heating or the controlled atmospher heating of steel in stove.Usually the radiant tube of selecting for use has several kinds of patterns such as I type, U type, W type, P type, and every kind of radiant tube pattern all has the different separately performance parameters and the scope of application.Usually as heater and the supporting use of radiant tube, general radiation pipe burner comprises two parts to radiation pipe burner tip: main burner part is used as burner combustion flame is lighted a fire, mixes and organized to space gas; The heat exchanger part reclaims radiant tube tail flue gas sensible heat, in order to warm-up combustion-supporting air, sends into main burner and burns.General radiation pipe burner tip has the manual ignition and the two kinds of sparking mode of lighting a fire automatically.Along with improving constantly of industrial furnace automatic technique, adopt the radiation pipe burner tip of lighting a fire automatically to become the main flow of development.
Automatically igniting radiation pipe burner tip master burner has two kinds of sparking mode usually: a kind of is that main burner is added igniter burner; Space gas blender, ignitor, swirl-flow devices etc. are set on the igniter burner; The independent bubbling air of igniter burner, coal gas are through being ignited by ignitor after the mixer mixing.Igniter burner is done ever-burning flame and is used, the main burner that ignites, and the control system monitors igniter burner flame.Though the integral working of this kind method burner is comparatively reliable, igniting and flame monitoring are all very stable, owing to need configuration space gas pipeline separately, system is comparatively complicated.Sometimes receive the site space condition restriction, combustion system is arranged more awkward.Another kind method is to adopt ignitor directly main burner to be lighted a fire, and through ignitor main burner flame is monitored.In the ignitor design, adopt ceramics bracket that wire electrode is supported in the steel pipe usually, by wire electrode and A-frame or the sparking of air-distributing disc wall, main burner ignites at electrode tip.Though this method can be carried out normal ignition to radiation pipe burner tip, in use there are problems such as flame monitoring is unstable, the easy loss of electrode.Therefore need badly and develop a kind of radiation pipe burner tip and use ignitor, on the basis of simplifying the combustion system configuration, realization is to the stable ignition of radiation pipe burner tip and flame monitoring, prolongation electrode life.
Summary of the invention
The technical problem that the present invention will solve provides a kind of ignitor that is applicable to multiple radiation pipe burner tip; Can realize the direct-fire of radiation pipe burner tip master burner; And main burner combustion flame is carried out stability monitoring, prolong the electrode whole service life, simplify the combustion system configuration.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of ignitor that is applicable to multiple radiation pipe burner tip is rotor foremost, and wire electrode passes from rotor and fixes with rotor, the outside insulating ceramics pipe that coats of wire electrode; The electrode tube right-hand member is set with the sparking A-frame that forms the adjustable sparking structure of spacing with rotor, and the insulating ceramics pipe passes through and positioning and fixing from sparking A-frame central circular through hole; The electrode tube left end is fixedly connected with connector; Electrode catheter is installed on the electrode tube outside, and right-hand member is connected with the burner combustion chamber electrode mounting hole; Electrode erection joint right-hand member is connected with connector, and left end is equipped with electrode tip; It is characterized in that: described wire electrode is single; The electrode catheter left end is connected with cooling air sleeve pipe level one end of three-port structure; The horizontal other end of cooling air sleeve pipe is connected with connector, and the circumferential weld that exists between the cooling air interface of its vertical direction and electrode catheter and electrode tube communicates, and regional connectivity always and between the sparking post of electrode front end and sparking A-frame.
Ceramic insulating tube is a whole cylindrical structural, and the center has the perforation circular hole, and wire electrode passes from the ceramic insulation tube hub, and the insulating ceramics pipe covers the wire electrode total travel is whole.
Rotor adopts the heat-resisting steel wire excision forming of HN, and two ends are two terrace with edge column structures, and the circular hole with wire electrode diameter coupling is offered at the center, and fixing with the wire electrode extruding.
Wire electrode adopts the stretching making of heat-resisting alloy resistance wire, and the wire electrode sectional making adopts age of a draught animal iron to connect and fix between each section.
The sparking A-frame adopts heat-resisting round steel fine finishining moulding; Its end cut goes out three strip legs; Form the sparking structure through adjustment and rotor spacing; The sparking A-frame has manhole, near the rotor side through hole be shrink poroid, the insulating ceramics pipe from manhole through and carry out longitudinal register by shrinkage hole; Electrode tube is fixing with the welding of sparking A-frame, and electrode tube adopts stainless-steel seamless pipe to make, and left end and connector welding are fixing.
Electrode catheter is installed on the electrode tube outside, and left end is connected fixing with the cooling air casing threads, and right-hand member and burner combustion chamber electrode mounting hole overlap joint are fixing; The cooling air interface of cooling air sleeve pipe vertical direction feeds the electrode leading section along circumferential weld between electrode catheter and electrode tube, and rotor and sparking A-frame are cooled off.
Connector is the inside and outside two helicitic textures of straight carbon steel cutting, is used for the connection of electrode erection joint, cooling air sleeve pipe.
The machine-shaping of hard translucent rubber is adopted in the electrode erection joint, and the left side is equipped with electrode tip, and the internal thread of right-hand member and connector is fixed.
Pad adopts white rubber to make, is installed in the connector as packing ring, and while fixed support ceramic insulating tube.
Age of a draught animal iron is the zigzag carbon steel structure, is used for two wire electrodes and connects and fix being connected between fixing or wire electrodes and the electrode tip.
Beneficial effect of the present invention:
(1) realize igniting and flame monitoring function automatically through single electrode, it is safe and reliable to light a fire, and wide adaptability is applicable to multiple radiation pipe burner tip igniting such as W type, U type, I type;
(2) the ignitor silk adopts the total travel insulating bag to enclose meter, has effectively avoided the generation of problems such as limit wall sparking and wire electrode surface oxidation, has strengthened the reliability of flame monitoring, has prolonged electrode life.
(3) setting of cooling air sleeve pipe under the condition of high temperature, can effectively reduce electrode rotor and A-frame temperature, significantly improves electrode life.
Description of drawings:
Fig. 1 is the structural representation (cutaway view) of preferred embodiment of the present invention ignitor;
The structural representation (cutaway view) of Fig. 2 during for the supporting use of invention preferred embodiment ignitor and radiation pipe burner tip master burner;
The system layout of Fig. 3 during for the supporting use of invention preferred embodiment ignitor and radiation pipe burner tip;
Among the figure: 1-rotor, 2-wire electrode, 3-insulating ceramics pipe, 4-age of a draught animal iron, the 5-A-frame of striking sparks; The 6-electrode tube, 7-connector, 8-electrode catheter, 9-cooling air sleeve pipe, the erection joint of 10-electrode; The 11-electrode tip, 12-ignitor, 13-radiation pipe burner tip, 14-combustion chamber, 15-air duct; The 16-ignition transformer, 17-burner controller, 18-air magnetic valve, 19-solenoid valve for gas; The 20-pad.
The specific embodiment:
Below in conjunction with embodiment and accompanying drawing the present invention is described further, but does not limit the present invention.
Shown in Figure 1 is the ignitor of implementing according to the present invention, comprises rotor 1, wire electrode 2, insulating ceramics pipe 3, age of a draught animal iron 4, sparking A-frame 5, electrode tube 6, connector 7, electrode catheter 8, cooling air sleeve pipe 9, electrode erection joint 10, electrode tip 11, pad 20; Rotor 1 adopts the heat-resisting steel wire excision forming of HN (25Ni-20Cr), and two ends are two terrace with edge column structures, and the circular hole with wire electrode 2 diameters coupling is offered at the center, squeezes 2 press fit with wire electrode.Wire electrode 2 adopts the stretching making of heat-resisting alloy resistance wire, and wire electrode 2 sectional makings adopt age of a draught animal iron 4 to connect and fix between each section.Wire electrode 2 peripheries are surrounded by insulating ceramics pipe 3; Ceramic insulating tube 3 is a whole cylindrical structural, and the center has the perforation circular hole, and wire electrode 2 passes from ceramic insulating tube 3 centers; 3 pairs of wire electrodes of insulating ceramics pipe, 2 whole coverings; Effectively avoid the generation of problems such as limit wall sparking and wire electrode surface oxidation, strengthened the reliability of flame monitoring, prolonged electrode life.Electrode tube 6 ends are provided with sparking A-frame 5; Sparking A-frame 5 adopts heat-resisting round steel fine finishining moulding; Its end cut goes out three strip legs, forms stable sparking structure through accurate control and rotor 1 spacing, and sparking A-frame 5 has manhole; Near the rotor side through hole be shrink poroid, insulating ceramics pipe 3 from manhole through and carry out longitudinal register by shrinkage hole.Electrode tube 6 is fixing with 5 welding of sparking A-frame, and electrode tube 6 adopts stainless-steel seamless pipe to make, and left end and connector 7 welding are fixing.Electrode catheter 8 is installed on electrode tube 6 outsides; Be used for the ignitor 12 whole burner combustion chambers 14 that import; Guarantee that simultaneously ignitor 12 and burner combustion chamber 14 form fixedly assembly relation; Guarantee burner igniting and flame monitoring stability, electrode catheter 8 left ends are threaded fixing with cooling air sleeve pipe 9, and right-hand member and burner combustion chamber 14 electrode mounting holes overlap joint are fixing.Cooling air sleeve pipe 9 is a three-port structure; Left end is connected with connector 7, and right-hand member and electrode catheter 8 are fixing, and cooling air inserts from the top interface of vertical direction; Feed electrode tip along electrode catheter 8 and 6 circumferential welds of electrode tube, rotor 1 and sparking A-frame 5 are cooled off.The setting of cooling air sleeve pipe 9 under the condition of high temperature, can effectively reduce the temperature of electrode rotor 1 and A-frame 5, significantly improves electrode life.Connector 7 is used for the connection of electrode erection joint 10, cooling air sleeve pipe 9 for the inside and outside two helicitic textures of straight carbon steel cutting.The machine-shaping of hard translucent rubber is adopted in electrode erection joint 10, and end face is equipped with electrode tip 11, and the internal thread of right-hand member and connector 7 is fixed.Pad 20 adopts white rubber to make, and is installed in the connector 7 and uses as packing ring, and simultaneously ceramic insulating tube 3 is play fixed supporting role.Age of a draught animal iron 4 is the zigzag carbon steel structure, is used for two wire electrodes 2 and connects and being connected between fixing or wire electrode 2 and the electrode tip 11 fix (referring on the left of Fig. 1).
Working method when Fig. 2-3 has provided ignitor 12 and radiation pipe burner tip 13 supporting uses; Ignitor 12 is reserved electrode mounting hole from radiation pipe burner tip 13 end plates and is penetrated; Be inserted into radiation pipe burner tip combustion chamber 14 front end outer edge, after adjustment rotor 1 position to the suitable distance that electrode catheter 8 is fixing with the welding of radiation pipe burner tip 13 end plates.Ignitor 12 cooling air sleeve pipes 9 are connected with air duct 15.Ignitor 12 tail ends are connected with ignition transformer 16 and burner controller 17, are used for realizing the igniting and the flame monitoring function of ignitor 12.During radiation pipe burner tip 13 igniting; Open the air magnetic valve 18 and solenoid valve for gas 19 of radiation pipe burner tip 2 when burner controller 17 send electricity for ignition transformer 16, igniter burner rotor 1 and 5 of sparking A-frames produce electric spark, and empty, coal gas feeds the back from burner combustion chamber 14 ejections along the burner pipeline; By the electrode electricity spark initiation; Flame is 14 internal combustion in the combustion chamber, and cover ignitor 12 foremost, and the cation in the combustion flame and the existence of free electron make ignitor 12 and 13 of radiation pipe burner tips form the loop; To radiation pipe burner tip 12 side joint ground and add alternating voltage; 13 current signals that flow through of ignitor 12 and radiation pipe burner tip, the flame monitoring signal forms, and radiation pipe burner tip 12 is lighted a fire successfully.
Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalence of therefore doing according to claim of the present invention changes, and still belongs to protection scope of the present invention.

Claims (10)

1. an ignitor that is applicable to multiple radiation pipe burner tip is rotor foremost, and wire electrode passes from rotor and fixes with rotor, the outside insulating ceramics pipe that coats of wire electrode; The electrode tube right-hand member is set with the sparking A-frame that forms the adjustable sparking structure of spacing with rotor, and the insulating ceramics pipe passes through and positioning and fixing from sparking A-frame central circular through hole; The electrode tube left end is fixedly connected with connector; Electrode catheter is installed on the electrode tube outside, and right-hand member is connected with the burner combustion chamber electrode mounting hole; Electrode erection joint right-hand member is connected with connector, and left end is equipped with electrode tip; It is characterized in that:
Described wire electrode is single; The electrode catheter left end is connected with cooling air sleeve pipe level one end of three-port structure; The horizontal other end of cooling air sleeve pipe is connected with connector, and the circumferential weld that exists between the cooling air interface of its vertical direction and electrode catheter and electrode tube communicates, and regional connectivity always and between the sparking post of electrode front end and sparking A-frame.
2. ignitor according to claim 1 is characterized in that: ceramic insulating tube is a whole cylindrical structural, and the center has the perforation circular hole, and wire electrode passes from the ceramic insulation tube hub, and the insulating ceramics pipe covers the wire electrode total travel is whole.
3. ignitor according to claim 1 and 2 is characterized in that: rotor adopts the heat-resisting steel wire excision forming of HN, and two ends are two terrace with edge column structures, and the circular hole with wire electrode diameter coupling is offered at the center, and fixing with the wire electrode extruding.
4. ignitor according to claim 3 is characterized in that: wire electrode adopts the stretching making of heat-resisting alloy resistance wire, and the wire electrode sectional making adopts age of a draught animal iron to connect and fix between each section.
5. according to claim 1 or 2 or 4 described ignitors; It is characterized in that: the sparking A-frame adopts heat-resisting round steel fine finishining moulding; Its end cut goes out three strip legs, forms the sparking structure through adjustment and rotor spacing, and the sparking A-frame has manhole; Near the rotor side through hole be shrink poroid, the insulating ceramics pipe from manhole through and carry out longitudinal register by shrinkage hole; Electrode tube is fixing with the welding of sparking A-frame, and electrode tube adopts stainless-steel seamless pipe to make, and left end and connector welding are fixing.
6. ignitor according to claim 5 is characterized in that: electrode catheter is installed on the electrode tube outside, and left end is connected fixing with the cooling air casing threads, and right-hand member and burner combustion chamber electrode mounting hole overlap joint are fixing; The cooling air interface of cooling air sleeve pipe vertical direction feeds the electrode leading section along circumferential weld between electrode catheter and electrode tube, and rotor and sparking A-frame are cooled off.
7. according to claim 1 or 2 or 4 or 6 described ignitors, it is characterized in that: connector is the inside and outside two helicitic textures of straight carbon steel cutting, is used for the connection of electrode erection joint, cooling air sleeve pipe.
8. ignitor according to claim 7 is characterized in that: the machine-shaping of hard translucent rubber is adopted in the electrode erection joint, and the left side is equipped with electrode tip, and the internal thread of right-hand member and connector is fixed.
9. according to claim 1 or 2 or 4 or 6 or 8 described ignitors, it is characterized in that: pad adopts white rubber to make, be installed in the connector as packing ring, and while fixed support ceramic insulating tube.
10. ignitor according to claim 9 is characterized in that: age of a draught animal iron is the zigzag carbon steel structure, is used for two wire electrodes and connects and fix being connected between fixing or wire electrodes and the electrode tip.
CN201110385117.2A 2011-11-28 2011-11-28 Ignition electrode suitable for multiple radiant tube burners Expired - Fee Related CN102425809B (en)

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CN201110385117.2A CN102425809B (en) 2011-11-28 2011-11-28 Ignition electrode suitable for multiple radiant tube burners

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Application Number Priority Date Filing Date Title
CN201110385117.2A CN102425809B (en) 2011-11-28 2011-11-28 Ignition electrode suitable for multiple radiant tube burners

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CN102425809A true CN102425809A (en) 2012-04-25
CN102425809B CN102425809B (en) 2014-04-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944026A (en) * 2012-11-28 2013-02-27 武汉钢铁(集团)公司 Gas igniter integrated device
CN108342544A (en) * 2017-01-22 2018-07-31 宝钢新日铁汽车板有限公司 A kind of annealing furnace radiant tube burner nozzle device
CN119393791A (en) * 2025-01-03 2025-02-07 合肥综合性国家科学中心能源研究院(安徽省能源实验室) High-power sliding arc igniter based on gas-liquid cooling electrode and operation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1289025A (en) * 1999-09-22 2001-03-28 张燕江 Highenergy fuel oil igniting semiconductor ceramic electrode
JP2009229010A (en) * 2008-03-24 2009-10-08 Osaka Gas Co Ltd Burner device
CN201437991U (en) * 2009-07-16 2010-04-14 湖南吉祥石化科技股份有限公司 Multi-functional automatic safe igniter for combustors
CN201487997U (en) * 2009-08-25 2010-05-26 施芜 Self-cooling electrode applied to kiln burners
CN201513919U (en) * 2008-03-28 2010-06-23 机械工业第五设计研究院 Portable ignition device
CN202350094U (en) * 2011-11-28 2012-07-25 中冶南方(武汉)威仕工业炉有限公司 Ignition electrode for radiant tube burner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1289025A (en) * 1999-09-22 2001-03-28 张燕江 Highenergy fuel oil igniting semiconductor ceramic electrode
JP2009229010A (en) * 2008-03-24 2009-10-08 Osaka Gas Co Ltd Burner device
CN201513919U (en) * 2008-03-28 2010-06-23 机械工业第五设计研究院 Portable ignition device
CN201437991U (en) * 2009-07-16 2010-04-14 湖南吉祥石化科技股份有限公司 Multi-functional automatic safe igniter for combustors
CN201487997U (en) * 2009-08-25 2010-05-26 施芜 Self-cooling electrode applied to kiln burners
CN202350094U (en) * 2011-11-28 2012-07-25 中冶南方(武汉)威仕工业炉有限公司 Ignition electrode for radiant tube burner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944026A (en) * 2012-11-28 2013-02-27 武汉钢铁(集团)公司 Gas igniter integrated device
CN108342544A (en) * 2017-01-22 2018-07-31 宝钢新日铁汽车板有限公司 A kind of annealing furnace radiant tube burner nozzle device
CN119393791A (en) * 2025-01-03 2025-02-07 合肥综合性国家科学中心能源研究院(安徽省能源实验室) High-power sliding arc igniter based on gas-liquid cooling electrode and operation method thereof

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