CN202229231U - Detachable vertical coal powder ignition device with cooling protection function - Google Patents
Detachable vertical coal powder ignition device with cooling protection function Download PDFInfo
- Publication number
- CN202229231U CN202229231U CN2011202957870U CN201120295787U CN202229231U CN 202229231 U CN202229231 U CN 202229231U CN 2011202957870 U CN2011202957870 U CN 2011202957870U CN 201120295787 U CN201120295787 U CN 201120295787U CN 202229231 U CN202229231 U CN 202229231U
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- Prior art keywords
- pipe
- secondary air
- pulverized coal
- cooling
- channel
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- 238000001816 cooling Methods 0.000 title claims abstract description 60
- 239000003245 coal Substances 0.000 title claims abstract description 56
- 239000000843 powder Substances 0.000 title claims description 3
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 41
- 239000003921 oil Substances 0.000 description 38
- 230000000694 effects Effects 0.000 description 9
- 239000000295 fuel oil Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
本实用新型公开了一种可拆卸的带有冷却保护作用的立式煤粉点火装置，包括点火装置本体，该点火装置头部设置进油管，油管尾部装有雾化油嘴，所述点火装置头部设置二次风进口管，进风管底部设置旋流套筒；所述高压点火电极定位于油管定位法兰，通过二次风通道、穿孔经过旋流套筒，布置于油嘴两侧；二次风管外侧布置煤粉管，进煤通道底部设置扩散管，煤粉管外壁设置定位直筒，中间形成冷却腔，冷却腔顶部开孔通入冷却风管至冷却腔底部，冷却介质冷却腔顶部的出口排出。本实用新型适用于立式液排渣煤粉炉的煤粉点火过程，由于设置了冷却腔，使得在煤粉立式向下燃烧时燃烧器头部承受更高的辐射温度，保护了顶部点火装置不被烧损；同时由于设置了旋流二次风通道，使得在二次风起到燃油助燃风作用的同时，对点火油嘴起到了冷却的作用，整个点火装置向火面接触高温的部分得到了有效的保护，因而提高了点火装置的安全和寿命性能。同时整个点火装置以法兰连接，整体可拆卸，使得点火装置检修工作便于进行，也适应了立式液排渣煤粉燃烧器本体短时停炉检修的要求，提高了立式液排渣煤粉燃烧器整体的运行可靠性。
The utility model discloses a detachable vertical pulverized coal ignition device with cooling protection function, which comprises an ignition device body. The secondary air inlet pipe is arranged at the bottom, and the swirl sleeve is arranged at the bottom of the air inlet pipe; the high-voltage ignition electrode is positioned on the oil pipe positioning flange, and is arranged on both sides of the oil nozzle through the secondary air channel and perforated through the swirl sleeve; The pulverized coal pipe is arranged on the outside of the secondary air pipe, the bottom of the coal inlet channel is provided with a diffusion pipe, the outer wall of the pulverized coal pipe is provided with a positioning straight cylinder, and a cooling chamber is formed in the middle. outlet discharge. The utility model is suitable for the pulverized coal ignition process of the vertical liquid slag discharge pulverized coal furnace. Since the cooling chamber is set, the head of the burner bears a higher radiation temperature when the pulverized coal burns vertically downward, which protects the top ignition The device will not be burned; at the same time, due to the setting of the swirl secondary air channel, the secondary air plays the role of fuel combustion air, and at the same time cools the ignition nozzle, and the whole ignition device contacts the high temperature part of the fire surface. It is effectively protected, thus improving the safety and life performance of the ignition device. At the same time, the entire ignition device is connected by a flange and can be disassembled as a whole, which makes the maintenance of the ignition device easy to carry out. The overall operational reliability of the pulverized burner.
Description
Technical field
The utility model relates to a kind of vertical pulverized coal ignition device that detachably has the cooling protection effect, the pulverized coal ignition device of especially using at environment-friendly type vertical solution deslagging coal dust clean burning device head that has cooling protection sleeve and eddy flow cooling air.
Background technology
Under international oil price and the continuous soaring situation of Gas Prices; Utilize industry fuel costs such as Industrial Stoves that fuel oil, combustion gas mode of heating produce, heating furnace, dry materials tower constantly to increase, fuel cost has become the key issue that influences relevant enterprise development and existence.The combustion system that utilizes abundant, the cheap coal resources of china natural resources to substitute part oil and derivatived fuel thereof is a kind of effective selection that cuts down the consumption of energy and reduce cost; Environment-friendly type vertical solution deslagging coal dust furnace is a kind of advanced mode of coal clean utilization, can be widely used in Industrial Stoves, the heating of forging kiln, heater for rolling steel, Spraying Dryer of Ceramics etc. and fuel oil and substitute transformation.In vertical solution deslagging coal dust furnace, in order to be beneficial to deslagging, combustion furnace adopts the method for operation of burning, bottom deslagging downwards; Coal dust sprays into from the burner top vertically downward, by the fuel oil of lighting coal dust is lighted, for the lime-ash liquefy in the coal dust is discharged; The stove domestic demand is in the above high-temperature region of ash fusion point, and the high-temperature region temperature range is generally greater than 1300 ℃ and since the igniter of burner head be in the high-temperature region directly over; The ignition part at burner top and air compartment stand high-temperature baking under the double action of radiation heat transfer and heat convection; Very easily cause scaling loss, portion's sprayable refractory effect within it is limited, and scaling loss is particularly serious when burning load is higher; Cause the fault blowing out incident of vertical coal dust slagging coal combustor, influence the normal operation and the security performance of burner.
The utility model content
The purpose of the utility model is the high temperature burning problems that solves vertical coal dust slagging coal combustor head point kerosene mouth and air channel; The technical measures that a kind of vertical pulverized coal ignition device that igniting oil nozzle, ignitor, secondary air duct, coal dust passage are formed carries out cooling protection are proposed; Technological merit with detachable easy access, cooling protection effect, handled easily is specially adapted to fixing vertical pulverized coal ignition device and the coal combustion equipment of auxiliary burning nozzle under hot environment.
For realizing above purpose; Technical scheme below the utility model has been taked: a kind of vertical pulverized coal ignition device that detachably has the cooling protection effect; The straight tube in location, outside, coal dust passage urceolus and the oil pipe that comprise coaxial setting; Secondary air channel urceolus, high-tension ignition electrode, oil pipe bottom are provided with the atomizing oil nozzle, and the straight tube in outside location adopts coal dust channel location flange to be connected with the coal feeding pipe top, and the bottom is by outer expander welded seal; Coal dust passage urceolus and secondary air channel urceolus constitute the coal dust passage, adopt the secondary air channel locating flange to connect in the coal dust channel roof, and secondary air channel locating flange top is provided with coal feeding pipe; Secondary air channel is made up of secondary wind urceolus and oil-pipe external wall face, and the top is provided with the oil pipe locating flange, and oil pipe is by the welding of oil pipe locating flange, and screw is opened on both sides, arranges the high-tension ignition electrode terminal in the screw; The oil pipe bottom is adopted with the atomizing oil nozzle and is threaded.The device all devices is except that weldment, and all the employings mode that removably connects flexibly is beneficial to the maintenance of operating trouble hunting and relevant apparatus, replacing.
Said coal dust passage urceolus is provided with the coal dust convergent divergent channel in the bottom.Be beneficial to the dispersion of coal dust; The straight tube in coal dust passage urceolus and location is welded seal formation cooling chamber up and down.Respectively open a hole before and after on perpendicular to the barrel of location straight tube center line; Welding cooling air inlet pipe and cooling air outlet pipe; Wherein the cooling air inlet pipe leads to the cooling chamber bottom with the mode that is parallel to coal dust passage outer tube wall, to realize the cooling protection effect to coal dust passage and positioning tube.
The perforate of cooling chamber top feeds cooling air inlet pipe to cooling chamber bottom, and cooling chamber top is provided with the cooling air outlet pipe simultaneously, forms cooling channel.
Fuel oil sprays into through the intermediate fuel pipe, oil pipe arranged outside secondary air channel, oil pipe and secondary air channel are realized in the secondary air channel top through the oil pipe locating flange location be connected; Secondary air channel arranged outside coal dust passage, coal dust channel roof are realized secondary air channel and coal pipe through the secondary air channel locating flange location be connected, secondary air channel locating flange connection coal feeding pipe can be for convenience detach between each parts, easy access.
Cooling air and secondary wind are accomplished mouth in igniter operation and igniting and all are held open state.Realization is to the cooling protection of igniter side towards the fire.
Said coal dust passage is made up of coal dust passage outer tube inner wall face and secondary air channel outside wall surface; The top is by the flange seal that is welded in the secondary air channel urceolus; In top flange coal feed point is set; Coal feeding pipe adopts bend mode to be welded in coal feed point, makes it to be convenient to change the mode of vertically dusting into by horizontal loose powder mode, when blowing out is cooled off, can doublely do the cooling air passage.Outer tube bottom of coal dust passage and secondary wind tube bottom are provided with the cone expansion section, are beneficial to the circumferential diffusion of coal dust.
Said secondary air channel is made up of secondary air duct internal face and oil-pipe external wall face; The top is by the flange seal that is welded in oil pipe; The top perforate of secondary air duct; Welding secondary air intake pipe, top flange perforate adopt porcelain bushing to insulate with the fixing two high-tension ignition electrodes of thread connecting mode between ignitor and the metal barrel; The eddy flow sleeve of secondary wind bottom is welded on the oil pipe, and the eddy flow sleeve has eddy flow wind passage, and wherein eddy flow wind passage is provided with down so that certain degree angle is oblique; Also have two ignitor locating holes on the eddy flow sleeve, inside is provided with porcelain bushing, and ignitor passes the porcelain bushing location vertically downward, to guarantee between ignitor and oil pipe barrel, the secondary air channel enough insulation distances being arranged.
Said secondary air channel at first provides fuel oil required air capacity when the igniter normal ignition, when burner normally moves, provides cooling air that oil nozzle and secondary air channel are carried out cooling protection; In case of emergency, be in the condition of high temperature and fuel oil occurs under the situation of supply fault, can carry out baker or ignition operation, realize reply emergency at the gaseous fuels such as natural gas, liquefied gas that secondary air channel feeds premix like body of heater.
The utility model compared with prior art; Have following advantage: the double action through the cooling of cooling chamber and secondary wind is set realizes the cooling protection to each parts side towards the fire of igniter, reduces the scaling loss of thermal-flame to igniter, and each parts can be for convenience detach simultaneously; Guaranteed the steady and continuous operation of igniter; Be specially adapted to vertical structure, and the ignition operation of the liquid deslagging coal dust furnace propagated of flame downwards, through designs simplification; Cancellation also can be applicable to the downward vertical oil burner of flame, the ignition operation of gas furnace after advancing coal channel.
Description of drawings
Fig. 1 is a kind of structure chart that detachably has the vertical pulverized coal ignition device of cooling protection effect of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Description of reference numerals: 1-oil pipe; 2-high-tension ignition electrode; 3-oil pipe locating flange; The 4-secondary air channel; The 5-coal feeding pipe; 6-secondary air channel locating flange; 7-cooling air outlet pipe; 8-coal dust channel location flange; The straight tube in 9-location; 10-advances the coal channel urceolus; 11-secondary air channel urceolus; 12-eddy flow sleeve; The 13-oil nozzle that atomizes; 14-coal dust convergent divergent channel; The 15-cooling chamber; 16-cooling air inlet pipe; 17-secondary wind inlet tube.
The specific embodiment
Explain further details below in conjunction with accompanying drawing and the specific embodiment content to the utility model.
Shown in Figure 2 like Fig. 1; A kind of vertical pulverized coal ignition device that detachably has the cooling protection effect; Straight 9 of the location, outside, coal dust passage urceolus 10 and the oil pipe 1 that comprise coaxial setting; Secondary air channel urceolus 11, high-tension ignition electrode 2, oil pipe 1 bottom are provided with atomizing oil nozzle 13, and the straight tube 9 in outside location adopts coal dust channel location flange 8 to be connected with coal feeding pipe 5 tops, and the bottom is by outer expander welded seal; Coal dust passage urceolus 10 constitutes the coal dust passage with secondary air channel urceolus 11, adopts secondary air channel locating flange 6 to connect in the coal dust channel roof, and secondary air channel locating flange 6 tops are provided with coal feeding pipe 5; Secondary air channel is made up of secondary wind urceolus 11 and oil pipe 1 outside wall surface, and the top is provided with oil pipe locating flange 3, and oil pipe 1 is by 3 welding of oil pipe locating flange, and screw is opened on both sides, arranges high-tension ignition electrode 2 terminals in the screw; Oil pipe 1 bottom is adopted with atomizing oil nozzle 13 and is threaded.
Coal dust passage urceolus 10 is provided with coal dust convergent divergent channel 14 in the bottom, straight welded seal about in the of 9 of coal dust passage urceolus 10 and location forms cooling chamber 15.
When carrying out the pulverized coal ignition operation, at first feed cooling medium to cooling chamber, and draw by cooling air outlet pipe 7 through cooling air inlet pipe 16; Secondly, open secondary wind air intake valve, secondary wind gets into the combustion chamber through secondary air channel and eddy flow sleeve 12 backs with cyclone mode; Behind the power supply of connecting high-tension ignition electrode 2, produce high-octane electric spark between high-field electrode, open tubing valve this moment; Fuel oil sprays into the combustion chamber through atomizing oil nozzle 13 after pressure atomization, lighted at the spark discharge place, closes the ignitor power supply this moment; After fuel oil smooth combustion; Slowly open coal dust valve and air distribution valve, the coal dust of feeding is slowly lighted under the high temperature of fuel oil, after coal combustion is stable, closes in-line and purges; Secondary wind and cooling air are held open state, whole igniter are played the effect of cooling protection.
Above-listed detailed description is to the specifying of the utility model possible embodiments, and this embodiment is not the claim in order to restriction the utility model, does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202957870U CN202229231U (en) | 2011-08-15 | 2011-08-15 | Detachable vertical coal powder ignition device with cooling protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202957870U CN202229231U (en) | 2011-08-15 | 2011-08-15 | Detachable vertical coal powder ignition device with cooling protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229231U true CN202229231U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202957870U Expired - Lifetime CN202229231U (en) | 2011-08-15 | 2011-08-15 | Detachable vertical coal powder ignition device with cooling protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229231U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748855A (en) * | 2012-07-05 | 2012-10-24 | 中冶建筑研究总院有限公司 | Energy-saving vertical type coal dust hot-blast stove with double combustion nozzles |
| CN102809147A (en) * | 2012-06-04 | 2012-12-05 | 中国科学院广州能源研究所 | Vertical downward liquid slag removal pulverized coal combustion device |
| CN103759260A (en) * | 2014-01-07 | 2014-04-30 | 孙升科 | Atomizing spray gun |
| CN109237508A (en) * | 2018-08-14 | 2019-01-18 | 成都九翼环保科技有限公司 | A kind of Liqiud-gas mixing device and its application for overcritical hydro-thermal combustion reactor |
| CN118548021A (en) * | 2024-06-11 | 2024-08-27 | 西南石油大学 | Downhole ignition device and method for burning oil layer |
-
2011
- 2011-08-15 CN CN2011202957870U patent/CN202229231U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809147A (en) * | 2012-06-04 | 2012-12-05 | 中国科学院广州能源研究所 | Vertical downward liquid slag removal pulverized coal combustion device |
| CN102809147B (en) * | 2012-06-04 | 2015-07-29 | 中国科学院广州能源研究所 | A kind of vertical downward liquid slag removal coal powder burner |
| CN102748855A (en) * | 2012-07-05 | 2012-10-24 | 中冶建筑研究总院有限公司 | Energy-saving vertical type coal dust hot-blast stove with double combustion nozzles |
| CN102748855B (en) * | 2012-07-05 | 2014-09-10 | 中冶建筑研究总院有限公司 | Energy-saving vertical type coal dust hot-blast stove with double combustion nozzles |
| CN103759260A (en) * | 2014-01-07 | 2014-04-30 | 孙升科 | Atomizing spray gun |
| CN103759260B (en) * | 2014-01-07 | 2015-11-25 | 孙升科 | A kind of atomizing lance |
| CN109237508A (en) * | 2018-08-14 | 2019-01-18 | 成都九翼环保科技有限公司 | A kind of Liqiud-gas mixing device and its application for overcritical hydro-thermal combustion reactor |
| CN118548021A (en) * | 2024-06-11 | 2024-08-27 | 西南石油大学 | Downhole ignition device and method for burning oil layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
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| CX01 | Expiry of patent term |