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
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- 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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- secondary air
- pipe
- ignition device
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- air channel
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Abstract
The utility model discloses a detachable vertical coal powder ignition device with a cooling protection function. The detachable vertical coal powder ignition device comprises an ignition device body, wherein the head of the ignition device is provided with a fuel inlet pipe; the tail of a fuel pipe is provided with an atomized fuel nozzle; the head of the ignition device is also provided with a secondary air inlet pipe; the bottom of the air inlet pipe is provided with a swirling flow sleeve; high-pressure ignition electrodes are positioned on a fuel pipe positioning flange and arranged on two sides of the fuel nozzle by the swirling flow sleeve through a secondary air channel and a penetrating hole; a coal powder pipe is arranged outside a secondary air pipe; the bottom of a coal inlet channel is provided with a diffusion pipe; a positioning straight barrel is arranged on the outer wall of the coal powder pipe, and a cooling cavity is formed in the middle of the coal powder pipe; a hole is formed in the top of the cooling cavity and extends into a cooling air pipe until the bottom of the cooling cavity; and a coolant is discharged from an outlet in the top of the cooling cavity. The detachable vertical coal powder ignition device is applicable to a coal powder ignition process of a vertical liquid slagging coal powder furnace; as the cooling cavity is arranged, the head of a combustor bears higher radiation temperature when coal powder is combusted vertically downwards, and the ignition device on the top can be protected from being burned; meanwhile, as the swirling flow secondary air channel is arranged, the secondary air has the function of fuel combustion-assisting air and a function of cooling an ignition fuel nozzle, and the part of the whole ignition device, which is contacted with the fire surface with high temperature, is protected effectively; therefore, the safety of the ignition device is improved, and the service life of the ignition device is prolonged. Moreover, the whole ignition device is connected by a flange and is detachable, so that the ignition device is convenient to maintain and meets a requirement for stopping the furnace to maintain a vertical liquid slagging coal powder combustor body; and the running reliability of the whole vertical liquid slagging coal powder combustor is improved.
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)
1. vertical pulverized coal ignition device that detachably has the cooling protection effect; It is characterized in that: the outside straight tube in location (9), 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); The outside straight tube in location (9) adopts coal dust channel location flange (8) to be connected with coal feeding pipe (5) top, and the bottom is by outer expander welded seal; Coal dust passage urceolus (10) and secondary air channel urceolus (11) constitute the coal dust passage, adopt secondary air channel locating flange (6) to connect in the coal dust channel roof, and secondary air channel locating flange (6) top is 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 oil pipe locating flange (3) welding, 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.
2. the vertical pulverized coal ignition device that detachably has the cooling protection effect as claimed in claim 1; It is characterized in that: said coal dust passage urceolus (10) is provided with coal dust convergent divergent channel (14) in the bottom, and coal dust passage urceolus (10) and the straight tube in location (9) welded seal up and down form cooling chamber (15).
3. the vertical pulverized coal ignition device that detachably has the cooling protection effect as claimed in claim 2; It is characterized in that: the perforate of cooling chamber (15) top feeds cooling air inlet pipe (16) to cooling chamber (15) bottom; Cooling chamber (15) top is provided with cooling air outlet pipe (7) simultaneously, forms cooling channel.
4. the vertical pulverized coal ignition device that detachably has the cooling protection effect as claimed in claim 1; It is characterized in that: oil pipe (1) arranged outside secondary air channel (4), secondary air channel (4) top are realized oil pipe (1) and secondary air channel (4) through oil pipe locating flange (3) location be connected; Secondary air channel arranged outside coal dust passage, coal dust channel roof are realized secondary air channel (4) and coal pipe through secondary air channel locating flange (6) location be connected secondary air channel locating flange (6) connection coal feeding pipe (5).
5. the vertical pulverized coal ignition device that detachably has the cooling protection effect as claimed in claim 1; It is characterized in that: eddy flow sleeve (12) is equipped with in atomizing oil nozzle (13) outside; Be welded on the oil pipe (1), high-tension ignition electrode (2) perforation is arranged in atomizing oil nozzle (13) both sides behind eddy flow sleeve (12); Eddy flow sleeve (12) is gone up and is arranged the eddy flow wind passage with predetermined angular.
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 (4)
| 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 |
-
2011
- 2011-08-15 CN CN2011202957870U patent/CN202229231U/en not_active Expired - Lifetime
Cited By (7)
| 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |