CN102538005B - Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace - Google Patents
Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace Download PDFInfo
- Publication number
- CN102538005B CN102538005B CN201210028118.6A CN201210028118A CN102538005B CN 102538005 B CN102538005 B CN 102538005B CN 201210028118 A CN201210028118 A CN 201210028118A CN 102538005 B CN102538005 B CN 102538005B
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- Prior art keywords
- resistance wire
- stainless steel
- band steel
- igniter
- stove
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- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 238000000137 annealing Methods 0.000 title abstract description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 23
- 239000010935 stainless steel Substances 0.000 claims abstract description 23
- 239000012212 insulator Substances 0.000 claims abstract description 17
- 238000007747 plating Methods 0.000 claims description 7
- 239000010425 asbestos Substances 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000005246 galvanizing Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The invention discloses an electrothermal igniter special for a band steel zinc-plated furnace or a continuous band steel annealing furnace, relates to an igniter, and aims to solve the problem that explosion is easily caused when air enters the low-temperature region of the conventional band steel zinc-plated furnace or the conventional continuous band steel annealing furnace. A positioning insulator and a stainless steel supporting piece are arranged in a stainless steel protection tube; a flange disk is arranged at one end of the stainless steel protection tube; one end of the positioning insulator is connected with one end of the stainless steel supporting piece; a spiral wire slot is formed on the positioning insulator; a heating resistance wire is arranged in the spiral wire slot; one end of the heating resistance wire is positioned by a resistance wire fixing piece and connected with one of two wire lead rods, and the other end of the heating resistance wire is positioned by another resistance wire fixing piece and connected with the other wire lead rod; one end of each wire lead rod penetrates through the flange disk, and is fixed by a wire lead rod fastening piece and connected with a wire connection clamp; and an insulation sealing layer is arranged between each wire lead rod and the flange disk. The electrothermal igniter is applied in the low-temperature region of the band steel zinc-plated furnace or the continuous band steel annealing furnace.
Description
Technical field
The present invention relates to a kind of igniter.
Background technology
In the production run process of band steel galvanizing annealing furnace or continuous strip annealing furnace (moving back stove hereinafter to be referred as strip steel Zn-plating stove and company), in technique, require band steel in stove, to walk in process and will complete heating, insulation and cooling several temperature changing process, wherein heating and being incubated has been the recrystallization annealing with steel, cooling be to guarantee to control when band steel is come out of the stove to reach and enter the needed temperature of zinc pot (460-480 ℃) in galvanizing furnace, cooling be in order to reach the temperature required (350-400 ℃ of overaging in even moving back stove, in rapid cooling section) and come out of the stove and temperature requiredly (be less than 150 ℃, at cold section eventually).For being reduced, belt steel surface processes and prevents from being with steel high-temperature oxydation, in processing procedure, in stove, pass into the mist of hydrogen and nitrogen, and hydrogen content is all greater than 4%(volumetric concentration conventionally in actual production process), that is to say in atmosphere in the stove explosive range in hydrogen (explosion limit of hydrogen is 4.0%～75%).In Temperature Distribution in stove, heating and soaking zone temperature are all more than 700 ℃, after entering cooling section, temperature is all below 500 ℃, just there are burning-point (the 570 ℃ left and right of high-temperature area at hydrogen in whole like this stove section, depending on condition, can change to some extent) above work, low-temperature space is worked below the burning-point of hydrogen, because equipment exists the possibility of seepage, after having air to enter in stove, in high-temperature region because furnace temperature is higher than hydrogen burning-point, the air entering (oxygen) will burn and there will not be danger, and low-temperature space is due to the burning-point lower than hydrogen, once have air to enter, can not burn, after accumulating to a certain degree, will when surprisingly running into naked light, produce blast, thereby bring potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of strip steel Zn-plating stove or connect and move back stove Special electric hot type igniter, once enter with air in steel galvanizing annealing furnace or continuous strip annealing furnace low-temperature space the problem easily setting off an explosion to solve at present.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: described igniter comprises location insulator and heating resistance wire, described igniter also comprises resistance wire fixture, stainless steel support member, ring flange, stainless steel protection pipe, two lead wire lever, two sealants, two lead wire lever securing members and two binding clips, location insulator and stainless steel support member are all contained in stainless steel protection pipe, on one end of stainless steel protection pipe, ring flange is housed, one end of location insulator is connected with one end of stainless steel support member, location insulator be provided with helix groove-, heating resistance wire is located at helix groove-Nei, one end of heating resistance wire is by being connected with in two lead wire lever one behind resistance wire fixture location, the other end of heating resistance wire is connected with one of residue in two lead wire lever by resistance wire fixture location is rear, one end of each lead wire lever is connected with binding clip by lead wire lever securing member is fixing through ring flange, between each lead wire lever and ring flange, be provided with insulated enclosure layer.
The present invention has following beneficial effect: 1, the present invention is directed to galvanizing furnace and connect and move back stove and develop, body is one and take the low-power heating illuminator that electricity is the energy, and after switching on power, resistance wire heats up and reaches red-hot state (being not less than 700 ℃) rapidly.The present invention has just become a fixing burning things which may cause a fire disaster like this, as long as there is air (oxygen) to enter, will by point, be burnt at any time, can not form and gather, thereby guarantee that equipment is used safety.When annealing furnace equipment is installed, only need the present invention be installed at the corresponding position that easily occurs seepage of low temperature oven section and can effectively solve the danger that produces blast because of stove seepage;
2, at galvanization annealing furnace and company, move back on stove; because the hydrogen content of protective atmosphere in stove is difficult to all be controlled at below 4%; in fact atmospheric condition is much all within the scope of hydrogen explosion; and the seepage of stove can not definitely be avoided; at stove low-temperature space, just exist because air (oxygen) infiltrates the situation of bringing potential safety hazard in stove like this; this is not so good in some construction qualities; on furnace life longer equipment, seeming more outstanding, is to solve these class safety problem effective measures so install the electrothermal igniter that can eliminate this hidden danger additional.For production line, safe operation is significant;
3, the present invention has simple installation, control is simple, price is lower, long service life, and maintain and replace is easy.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention, Fig. 2 is the side view of Fig. 1, and Fig. 3 is the present invention electric control theory figure (switch 21, the first contactor 22, transformer 23, wire break alarm 24, igniter of the present invention 25, auxiliary reclay 26, the second contactor 27 in figure) while using.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the igniter of present embodiment comprises location insulator 1, heating resistance wire 2, resistance wire fixture 3, stainless steel support member 4, ring flange 6, stainless steel protection pipe 11, two lead wire lever 5, two sealants 7, two lead wire lever securing members 8 and two binding clips 9, location insulator 1 and stainless steel support member 4 are all contained in stainless steel protection pipe 11, ring flange 6 is housed on one end of stainless steel protection pipe 11, one end of location insulator 1 is connected with one end of stainless steel support member 4, location insulator 1 is provided with helix groove 1-1, heating resistance wire 2 is located in helix groove 1-1, one end of heating resistance wire 2 is connected with in two lead wire lever 5 one after by resistance wire fixture 3 location,
The other end of heating resistance wire 2 is connected with one of residue in two lead wire lever 5 by resistance wire fixture 3 location are rear, one end of each lead wire lever 5 is connected with binding clip 9 by lead wire lever securing member 8 is fixing through ring flange 6, between each lead wire lever 5 and ring flange 6, is provided with insulated enclosure layer 7.
The specific embodiment two: present embodiment is described in conjunction with Fig. 1, the heating resistance wire 2 of present embodiment is Cr20Ni80 resistance wire, it is very safe reliable adopting the logical electrically heated form of this resistance wire, be characterized in heating up rapidly, temperature is relatively constant, the feature of the type resistance wire be after high, the long-term use of elevated temperature strength its plasticity still fine, emissivity is high, nonmagnetic, there is good corrosion resistance.(in this programme, surface loading is 3.44W/cm during designing and calculating, will to select rational element surface load parameter
2), so that when work element surface can reach required temperature, 1200 ℃ of element maximum operation (service) temperatures, electricalresistivityρ
20=1.09 * 10
-6Ω m, proportion 8.3g/cm
3, this resistance wire is at strip steel Zn-plating stove or even move back under the working environment in stove life-span length, not oxidizable.Other embodiment is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, each insulated enclosure layer 7 of present embodiment is corundum porcelain piece and asbestos packing layer, the high and good sealing effect of this structural strength.Other embodiment is identical with the specific embodiment one or two.
The specific embodiment four: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the location insulator 1 of present embodiment is the special special form brick of high-alumina brick high-strength high-alumina location insulator, high-strength high-alumina material can reduce and resistance wire corrosion to element when the condition of high temperature contacts, can guarantee again the intensity of the weaknesses such as helix groove and locating hole and force part simultaneously, avoid making the damage in installation, transportation.Other embodiment is identical with the specific embodiment three.
Operation principle: install when of the present invention and need to first open an installing hole on body of heater 12; this installing hole is to be welded by the stainless steel protection pipe 11 and the ring flange 6 that go deep in stove; and and body of heater 12 between carry out airtight welding prevent gas leakage, the lead wire lever outside stove is connected with Power supply and control system by binding clip.Heating resistance wire 2 is placed in furnace inner environment atmosphere, controlling in requirement, as long as stove starts, igniter is also followed synchronous startup power transmission, at this moment the heater resistance wire 2 of igniter just converts electric energy to heat energy, makes resistance wire surface temperature rise to 700 ℃ of left and right.The igniter that is arranged in like this diverse location has just formed several " altar lamp burning things which may cause a fire disaster points " at stove low-temperature space.Be equivalent to little torch, due to the burning-point of its temperature higher than hydrogen, once have in Air infitration stove, when being lighted hydrogen by the effect with combustion adjuvant by igniter, burns oxygen wherein, can not form the situation that oxygen gathers, can not develop into the situation setting off an explosion, thereby realized safe object.
Operating power of the present invention is very little, only has 400W, and is to be dispersed in different positions, can not impact Control for Kiln Temperature.Its small volume, is convenient to be arranged on the region that space is restricted.Its electrical control is also relatively simple, only need connect loop and keep electricity condition during work, uses and exchanges the safety that 24V power supply has guaranteed use.
Claims (3)
1. a strip steel Zn-plating stove or connect and move back stove Special electric hot type igniter, described igniter comprises location insulator (1) and heating resistance wire (2), it is characterized in that, described igniter also comprises resistance wire fixture (3), stainless steel support member (4), ring flange (6), stainless steel protection pipe (11), two lead wire lever (5), two insulated enclosure layers (7), two lead wire lever securing members (8) and two binding clips (9), location insulator (1) and stainless steel support member (4) are all contained in stainless steel protection pipe (11), ring flange (6) is housed on one end of stainless steel protection pipe (11), one end of location insulator (1) is connected with one end of stainless steel support member (4), location insulator (1) is provided with helix groove (1-1), heating resistance wire (2) is located in helix groove (1-1), one end of heating resistance wire (2) is by being connected with in two lead wire lever (5) one behind resistance wire fixture (3) location, the other end of heating resistance wire (2) is connected with one of residue in two lead wire lever (5) by resistance wire fixture (3) location is rear, one end of each lead wire lever (5) is connected with binding clip (9) by lead wire lever securing member (8) is fixing through ring flange (6), between each lead wire lever (5) and ring flange (6), be provided with insulated enclosure layer (7).
2. stove Special electric hot type igniter moves back in strip steel Zn-plating stove or company according to claim 1, it is characterized in that heating resistance wire (2) is Cr20Ni80 resistance wire.
3. according to strip steel Zn-plating stove described in claim 1 or 2 or company, move back stove Special electric hot type igniter, it is characterized in that each insulated enclosure layer (7) is corundum porcelain piece and asbestos packing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028118.6A CN102538005B (en) | 2012-02-09 | 2012-02-09 | Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028118.6A CN102538005B (en) | 2012-02-09 | 2012-02-09 | Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102538005A CN102538005A (en) | 2012-07-04 |
| CN102538005B true CN102538005B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210028118.6A Expired - Fee Related CN102538005B (en) | 2012-02-09 | 2012-02-09 | Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN102538005B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759527B (en) * | 2014-02-20 | 2016-03-02 | 北京七星华创电子股份有限公司 | Vertical oxidation furnace body heating control apparatus |
| CN103953946B (en) * | 2014-04-23 | 2016-01-20 | 久盛电气股份有限公司 | A kind of nuclear power hydrogen igniter |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201942U (en) * | 1985-05-24 | 1986-08-20 | 仲路彬 | Easy-to-use ac cigarette lighter |
| CN87215577U (en) * | 1987-11-12 | 1988-07-20 | 李彩淑 | Sealed direct-heating type domestic electric firing unit |
| US5084606A (en) * | 1990-05-17 | 1992-01-28 | Caterpillar Inc. | Encapsulated heating filament for glow plug |
| CN2252292Y (en) * | 1996-01-05 | 1997-04-16 | 杨栋 | Electric igniter for household coal fired stove |
| CN2295127Y (en) * | 1997-02-05 | 1998-10-21 | 辽河石油勘探局石化总厂 | Ignitor for electric-heating heating furnace |
| FR2869390B1 (en) * | 2004-04-27 | 2006-07-14 | Siemens Vdo Automotive Sas | BODY OF A PREHEATING CANDLE COMPRISING A PRESSURE SENSOR |
| CN201282266Y (en) * | 2008-09-09 | 2009-07-29 | 江苏大江石油科技有限公司 | Interface device for high-voltage insulation spark plug and ignition cable |
| CN201339952Y (en) * | 2008-11-25 | 2009-11-04 | 赵瑾明 | Fireworks and crackers igniter |
| DE102010013333B4 (en) * | 2010-03-30 | 2012-05-24 | Borgwarner Beru Systems Gmbh | glow plug |
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2012
- 2012-02-09 CN CN201210028118.6A patent/CN102538005B/en not_active Expired - Fee Related
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| CN102538005A (en) | 2012-07-04 |
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Denomination of invention: Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace Effective date of registration: 20150608 Granted publication date: 20140423 Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province Pledgor: Harbin Songjiang Electric Co., Ltd. Registration number: 2015230000013 |
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Date of cancellation: 20160602 Granted publication date: 20140423 Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province Pledgor: Harbin Songjiang Electric Co., Ltd. Registration number: 2015230000013 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electrothermal igniter special for band steel zinc-plated furnace or continuous band steel annealing furnace Effective date of registration: 20160614 Granted publication date: 20140423 Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province Pledgor: Harbin Songjiang Electric Co., Ltd. Registration number: 2016230000008 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180413 Granted publication date: 20140423 Pledgee: Keli technology investment Company limited by guarantee in Heilongjiang Province Pledgor: Harbin Songjiang Electric Co., Ltd. Registration number: 2016230000008 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20200209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |