CN110529852A - A kind of micro-oil ignition combustion device - Google Patents
A kind of micro-oil ignition combustion device Download PDFInfo
- Publication number
- CN110529852A CN110529852A CN201910896626.8A CN201910896626A CN110529852A CN 110529852 A CN110529852 A CN 110529852A CN 201910896626 A CN201910896626 A CN 201910896626A CN 110529852 A CN110529852 A CN 110529852A
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- China
- Prior art keywords
- oil gun
- level
- pulverized coal
- steam
- pipe
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 94
- 239000003245 coal Substances 0.000 claims abstract description 148
- 239000002817 coal dust Substances 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000002209 hydrophobic effect Effects 0.000 claims description 39
- 238000001914 filtration Methods 0.000 claims description 29
- 238000011161 development Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 5
- 239000003502 gasoline Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 128
- 238000010304 firing Methods 0.000 description 17
- 239000000295 fuel oil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000001535 kindling effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/44—Preheating devices; Vaporising devices
- F23D11/441—Vaporising devices incorporated with burners
- F23D11/443—Vaporising devices incorporated with burners heated by the main burner flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
- F23D17/007—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel liquid or pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/02—Other direct-contact heat-exchange apparatus the heat-exchange media both being gases or vapours
Abstract
The invention discloses a kind of micro-oil ignition combustion devices, including coal burner, oil burning installation, heater and First air auxiliary combustion equipment.Wherein, coal burner includes coal pipe, level-one pulverized coal combustor, second level pulverized coal combustor, three-level pulverized coal combustor, cooling wind membrane tube, main oil gun combustion chamber and auxiliary oil gun combustion chamber.Oil burning installation includes oil circuit, filter device, main oil gun and auxiliary oil gun, and main oil gun and auxiliary oil gun are adaptedly inserted into main oil gun combustion chamber and auxiliary oil gun combustion chamber respectively；Heater exports warm wind for the coal dust in coal pipe towards conveying in level-one pulverized coal combustor；First air auxiliary combustion equipment includes an air duct, main oil gun airducts and auxiliary oil gun airducts, one end of main oil gun airducts and auxiliary oil gun airducts is connected by pipeline with an air duct, and the other end of main oil gun airducts and auxiliary oil gun airducts is connect with main oil gun and auxiliary oil gun respectively.The present invention can be caught fire with fast and stable, and rate of economizing gasoline is high, and is avoided that combustion chamber wall body slagging and burns out.
Description
Technical field
The present invention relates to coal fired boiler of power plant firing technique field more particularly to a kind of micro-oil ignition combustion devices.
Background technique
Domestic thermal power plant coal-burning boiler firing technique is roughly divided into oil-free ignition technology at present and fuel-economizing firing technique two is big
Class, oil-free ignition technology are divided into Plasma Firing Technology, electric heating firing technique, laser heating technique, high temperature air igniting skill
Art, the problem is that resistive element is easy failure after firing, the service life is shorter, laser generator costly, it is difficult in maintenance,
Power is low, the disadvantages of involving great expense.
Fuel-economizing firing technique is divided into precombustion-chamber ignition technology, small oil gun firing technique, fuel-economizing pulverized coal combustion, micro- oil gas
Change firing technique, micro- oil/plasma Composite firing technique etc., there are the problem of easily lead to the slagging of pre-burning chamber interior walls and burn out,
The disadvantages of rate of economizing gasoline is low, NOx discharge is big, system is complex, at high cost, and energy consumption is high.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of micro-oil ignition combustion device, can be caught fire with fast and stable, rate of economizing gasoline is high, and is avoided that combustion chamber wall body slagging
With burn out.
Micro-oil ignition combustion device according to an embodiment of the present invention, comprising: coal burner, oil burning installation, heater
With First air auxiliary combustion equipment, in which:
The coal burner includes coal pipe, level-one pulverized coal combustor, second level pulverized coal combustor, three-level coal dust firing
Room, cooling wind membrane tube, main oil gun combustion chamber and auxiliary oil gun combustion chamber；The level-one pulverized coal combustor is in circular cone shape, described
The small end of level-one pulverized coal combustor is arrival end and big end is outlet end, the outlet end of the level-one pulverized coal combustor and described two
The arrival end connection of grade pulverized coal combustor, the level-one pulverized coal combustor and the second level pulverized coal combustor are respectively positioned on the coal dust
In pipe, the outlet end of the second level pulverized coal combustor is concordantly connect with one end of the coal pipe, and one end of the coal pipe is stretched
Enter the arrival end of the three-level pulverized coal combustor and is connect with the arrival end of the three-level pulverized coal combustor, the main oil gun burning
Room and it is described auxiliary oil gun combustion chamber be biased to the level-one pulverized coal combustor arrival end be in tilted layout and with the level-one coal dust
Combustion chamber, arrival end of the main oil gun combustion chamber close to the level-one pulverized coal combustor, the auxiliary oil gun combustion chamber
Close to the outlet end of the level-one pulverized coal combustor；The part tube body of the three-level pulverized coal combustor and the coal pipe protrudes into institute
It states in cooling wind membrane tube；
The oil burning installation includes oil circuit, filter device, main oil gun and auxiliary oil gun, and one end of the oil circuit is oil inlet
And the other end is branched off into the first flowline and the second flowline, the filter device is arranged on the oil circuit, and described first goes out
Oil pipe connects the main oil gun, and second flowline connects the auxiliary oil gun, the main oil gun and the auxiliary oil gun point
It is not inserted into the main oil gun combustion chamber and the auxiliary oil gun combustion chamber adaptedly；
The heater is connected to the other end of the coal pipe, to pass through warm wind for the coal dust court in the coal pipe
It is conveyed in the level-one pulverized coal combustor；
The First air auxiliary combustion equipment includes an air duct, main oil gun airducts and auxiliary oil gun airducts, the main oil gun wind
One end of pipe and auxiliary oil gun airducts is connected by pipeline with an air duct, the main oil gun airducts and the auxiliary oil gun
The other end of air hose is connect with the main oil gun and the auxiliary oil gun respectively.
Micro-oil ignition combustion device according to an embodiment of the present invention, when work, on the one hand, utilize First air auxiliary combustion equipment
The high-speed flow that main oil gun airducts project directly smashes the fuel oil in main oil gun, the high speed gas projected using auxiliary oil gun airducts
Stream will assist oil gun in fuel oil directly smash, thus be main oil gun and auxiliary oil gun in fuel oil be atomized into ultra-fine oil respectively
Drop realizes that gasification is quickly lighted and evaporated in most time to micro- oil, and the flame propagation speed after gasification, and combustion can be direct
Firing coal-dust.On the other hand, the coal dust in coal pipe is blown afloat so that coal dust sequentially enters using the warm wind that heater exports
Level-one pulverized coal combustor, second level pulverized coal combustor and three-level pulverized coal combustor, while the raising of coal dust temperature being made to make coal dust more
It is easy kindling；When coal dust in level-one pulverized coal combustor encounters the fiery core in main oil gun combustion chamber and in auxiliary oil gun combustion chamber,
Pulverized coal particle temperature in level-one pulverized coal combustor sharply increases, a large amount of Volatile and rapid ignition.It has burnt
Level-one do not take combustion chamber in coal dust light the coal dust in second level pulverized coal combustor, then proceed to flow forward and light three-level coal
Coal dust in powder combustion chamber, the final fractional combustion for realizing coal dust, burning capacity are gradually amplified, and reach a little to fight coal dust is accelerated to fill
The purpose of divided combustion greatly reduces the fuel oil to ignite needed for coal dust firing, and rate of economizing gasoline also avoids burning up to 80% or more
Inner wall slagging phenomenon.In addition, the micro-oil ignition combustion device also has the advantage that using main oil gun and auxiliary oil gun difference
It burns in main oil gun combustion chamber and auxiliary oil gun combustion chamber, is more advantageous to coal dust fast and stable in level-one pulverized coal combustor
Fire.The level-one pulverized coal combustor is in circular cone shape, is more advantageous to coal powder ignition flameholding in level-one coal dust firing room.Pass through
Be arranged cooling wind membrane tube, can make cooling wind membrane tube respectively with coal pipe, three-level pulverized coal combustor wall body between gap
It is inside passed through cooling wind, forms cooling wind film, prevent coal pipe, the wall of the wall body of level-one pulverized coal combustor, second level pulverized coal combustor
The wall body overtemperature of body and three-level pulverized coal combustor.Oil burning installation passes through setting filter device, it can be ensured that the purity of fuel oil makes to fire
Oil is easier to be ignited.
According to one embodiment of present invention, the main oil gun room includes the first Room, second Room and the third being sequentially connected
Room, the third room are connected with the level-one pulverized coal combustor, and first Room is cylindric, the second Room and the third
Room is circular cone shape, wherein the big end of the second Room is connected with the first Room, the small end of the second Room and the third room
Small end be connected, the auxiliary oil gun combustion chamber be it is cylindric.
According to one embodiment of present invention, the filter device include two rough filtering devices and a fine filtering device, two
First flowline and second flowline are arranged in series in the fine filtering device again after a rough filtering device is in parallel
Connecting portion and the oil inlet between, wherein two rough filtering devices are leaned on close to the oil inlet, the fine filtering device
The connecting portion of nearly first flowline and second flowline.
According to some embodiments of the present invention, the heater includes steam air heater ontology, cold wind input pipe, steam input
Pipe, warm wind efferent duct and mixing air duct；The both ends of the cold wind input pipe are connected to an air duct and the warm wind
On device ontology, the cold wind in an air duct is inputted in the steam air heater ontology；The both ends of the steam input pipe point
It is not connected on jet chimney and the steam air heater ontology, the steam of crossing in the jet chimney is input to the steam air heater
In ontology；The both ends of the warm wind efferent duct are connected on the steam air heater ontology and the mixing air duct, will be described
Cold wind is input in the mixing air duct with the warm wind obtained after steam mixes is crossed in steam air heater ontology, the mixing air duct and institute
State the other end connection of coal pipe, with by warm wind by the dense phase pulverized coal of the coal pipe towards defeated in the level-one pulverized coal combustor
It send.
Further embodiment according to the present invention, the steam input pipe include steam input general pipeline and steam input branch
Pipe, the steam inlet branch have it is multiple, one end of multiple steam inlet branch evenly and at intervals with the steam air heater sheet
Body is connected, and the other end of multiple steam inlet branch is connected with steam input general pipeline, the steam input general pipeline's
One end is connected with the jet chimney, the other end closing of the steam input general pipeline.
Further embodiment according to the present invention, the heater further include hydrophobic development unit and drain pipe, described to dredge
Water flash vessel is located at the lower section of the steam air heater ontology, and the both ends of the drain pipe are connected to the bottom of the steam air heater ontology
On wall and the hydrophobic development unit, the water in the steam air heater ontology is discharged into the hydrophobic development unit.
Further embodiment according to the present invention, the heater further include drain valve and non-return valve, described hydrophobic
Valve and the non-return valve are arranged in series on the drain pipe, and the non-return valve is close to the hydrophobic development unit.
Further embodiment according to the present invention, the drain pipe include hydrophobic branch pipe and it is hydrophobic collect general pipeline, it is described
Hydrophobic branch pipe has multiple, and one end of multiple hydrophobic branch pipes is equably connected with the bottom wall of the steam air heater ontology at equal intervals,
The other end of multiple drain pipes is connected with the hydrophobic general pipeline that collects, and the drain valve is arranged in series in the non-return valve
It is described hydrophobic to collect on general pipeline.
It according to some embodiments of the present invention, further include the control valve being arranged on second flowline.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the coal burner structural schematic diagram in the micro-oil ignition combustion device of the embodiment of the present invention.
Fig. 2 is the oil circuit device arrangement schematic illustration in the micro-oil ignition combustion device of the embodiment of the present invention.
Fig. 3 is the oil circuit device partial structural diagram in the micro-oil ignition combustion device of the embodiment of the present invention.
Fig. 4 is that the heater structural representation in the micro-oil ignition combustion device of the embodiment of the present invention is solid.
Fig. 5 is the auxiliary combustion equipment arrangement schematic illustration in the micro-oil ignition combustion device of the embodiment of the present invention.
Appended drawing reference:
Coal burner 1
11 level-one pulverized coal combustor of coal pipe, 12 second level pulverized coal combustor, 13 three-level pulverized coal combustor 14
The main oil gun combustion chamber 16 of cooling wind membrane tube 15 assists oil gun combustion chamber 17
Oil burning installation 2
21 first 211 second flowline of flowline of oil circuit, 212 control valve 213
The main oil gun 23 of 22 rough filtering device of filter device, 221 fine filtering device 222 assists oil gun 24
Heater 3
31 cold wind input pipe 32 of steam air heater ontology
33 steam of steam input pipe inputs 331 steam inlet branch 332 of general pipeline
Warm wind efferent duct 34 mixes air duct 35
Hydrophobic development unit 36 drain pipe, 37 hydrophobic branch pipes 371 are hydrophobic to collect general pipeline 372
38 non-return valve 39 of drain valve
First air auxiliary combustion equipment 4
One time the main oil gun airducts 42 in air duct 41 assist oil gun airducts 43
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Micro-oil ignition combustion device according to an embodiment of the present invention is described below with reference to Fig. 1 to Fig. 5.
As shown in Figures 1 to 5, micro-oil ignition combustion device according to an embodiment of the present invention, including coal burner 1, combustion
Oily device 2, heater 3 and First air auxiliary combustion equipment 4.Wherein, coal burner 1 includes coal pipe 11, level-one coal dust firing
Room 12, second level pulverized coal combustor 13, three-level pulverized coal combustor 14, cooling wind membrane tube 15, main oil gun combustion chamber 16 and auxiliary oil gun
Combustion chamber 17；Level-one pulverized coal combustor 12 is in circular cone shape, and the small end of level-one pulverized coal combustor 12 is arrival end and big end is
Mouth end, the outlet end of level-one pulverized coal combustor 12 are connect with the arrival end of second level pulverized coal combustor 13, level-one pulverized coal combustor 12
It is respectively positioned in coal pipe 11 with second level pulverized coal combustor 13, the outlet end of second level pulverized coal combustor 13 is held level with both hands with the one of coal pipe 11
Neat connection, the arrival end of three-level pulverized coal combustor 14 and the arrival end with three-level pulverized coal combustor 14 are protruded into one end of coal pipe 11
Connection, main oil gun combustion chamber 16 and auxiliary oil gun combustion chamber 17 be biased to level-one pulverized coal combustor 12 arrival end inclination arrangement and with
Level-one pulverized coal combustor 12 is connected to, arrival end of the main oil gun combustion chamber 16 close to level-one pulverized coal combustor 12, auxiliary oil gun burning
Room 17 is close to the outlet end of level-one pulverized coal combustor 12；The part tube body of three-level pulverized coal combustor 14 and coal pipe 11 protrudes into cooling
In wind membrane tube 15；Oil burning installation 2 includes oil circuit 21, filter device 22, main oil gun 23 and auxiliary oil gun 24, and one end of oil circuit 21 is
Oil inlet and the other end are branched off into the first flowline 211 and the second flowline 212, and filter device 22 is arranged on oil circuit 21, the
One flowline 211 connects main oil gun 23, and the second flowline 212 connection auxiliary oil gun 24, main oil gun 23 and auxiliary oil gun 24 are distinguished
Adaptedly it is inserted into main oil gun combustion chamber 16 and auxiliary oil gun combustion chamber 17；Heater 3 is connected to the other end of coal pipe 11, with
By warm wind by the coal dust in coal pipe 11 towards conveying in level-one pulverized coal combustor 12；First air auxiliary combustion equipment 4 includes First air
One end of road 41, main oil gun airducts 42 and auxiliary oil gun airducts 43, main oil gun airducts 42 and auxiliary oil gun airducts 43 passes through pipeline
Be connected with an air duct 41, main oil gun airducts 42 and assist oil gun airducts 43 the other end respectively with main oil gun 23 and assist oil gun
24 connections.
Micro-oil ignition combustion device according to an embodiment of the present invention, when work, on the one hand, utilize First air auxiliary combustion equipment 4
Main oil gun airducts 42 project high-speed flow the fuel oil in main oil gun 23 is directly smashed, utilize auxiliary oil gun airducts 43 project
High-speed flow the fuel oil in oil gun 24 will be assisted directly to smash, to be the fuel oil difference in main oil gun 23 and auxiliary oil gun 24
It is atomized into ultra-fine oil droplet, realizes that micro- oil is quickly lighted and evaporates gasification in most time, the flame propagation speed after gasification, and combustion
Degree is fast, can direct firing coal-dust；On the other hand, the coal dust in coal pipe 11 is blown afloat using the warm wind that heater 3 exports
So that coal dust sequentially enters level-one pulverized coal combustor 12, second level pulverized coal combustor 13 and three-level pulverized coal combustor 14, make simultaneously
The raising of coal dust temperature makes coal dust be more easier to catch fire；Coal dust in level-one pulverized coal combustor 12 encounters main oil gun combustion chamber 16 and neutralizes
When assisting the fiery core in oil gun combustion chamber 17, the pulverized coal particle temperature in level-one pulverized coal combustor 12 is sharply increased, and is largely waved
Hair analyzes and rapid ignition.Spent level-one the coal dust not taken in combustion chamber to light in second level pulverized coal combustor 13
Coal dust then proceedes to flow forward and lights coal dust in three-level pulverized coal combustor 14, the final fractional combustion for realizing coal dust, burning
Energy gradually amplifies, and reaches a little to fight and accelerates the clean-burning purpose of coal dust, greatly reduces the fuel oil to ignite needed for coal dust firing,
Rate of economizing gasoline also avoids slagging phenomenon up to 80% or more.In addition, the micro-oil ignition combustion device also have it is following excellent
Point: it is burnt in main oil gun combustion chamber 16 and auxiliary oil gun combustion chamber 17 using main oil gun 23 and auxiliary oil gun 24, is more had respectively
Conducive to the coal dust fast and stable kindling in level-one pulverized coal combustor 12.Level-one pulverized coal combustor 12 is in circular cone shape, is more advantageous to
Coal powder ignition flameholding in level-one pulverized coal combustor 12.By the way that cooling wind membrane tube 15 is arranged, cooling wind membrane tube 15 can be made
Respectively with coal pipe 11, three-level pulverized coal combustor 14 wall body between gap in be passed through cooling wind, form cooling wind film, prevent
Coal pipe 11, the wall of the wall body of level-one pulverized coal combustor 12, the wall body of second level pulverized coal combustor 13 and three-level pulverized coal combustor 14
Body overtemperature, avoids wall body from burning out.Oil burning installation 2 passes through setting filter device 22, it can be ensured that the purity of fuel oil holds that fuel oil more
Easily it is ignited.
According to one embodiment of present invention, main oil gun Room 23 includes the first Room being sequentially connected, second Room and third room,
Third room is connected with level-one pulverized coal combustor 12, the first Room be it is cylindric, second Room and third room are circular cone shape, wherein
The big end of second Room is connected with the first Room, and the small end of second Room is connected with the small end of third room, and auxiliary oil gun combustion chamber 17 is circle
Column.
As shown in Figures 2 and 3, according to one embodiment of present invention, filter device 22 includes two 221 Hes of rough filtering device
One fine filtering device 222, be arranged in series in again with fine filtering device 222 after two 221 parallel connections of rough filtering device the first flowline 211 and
Between the connecting portion and oil inlet of second flowline 212, wherein two rough filtering devices 221 are close to oil inlet, fine filtering device
222 close to the first flowline 211 and the second flowline 212 connecting portion.By setting rough filtering device 221 and for oil gun it is special
The fine filtering device 222 of door design, is more advantageous to the purity for improving fuel oil, the requirement for fuel oil of having a full house.In fine filtering device 222
Rough filtering device 221 is arranged in front end, not only makes 222 filter effect of fine filtering device more preferable, and can also improve fine filtering device 222
Service life.By two rough filtering devices 221 in parallel of setting in oil circuit 21, when one of rough filtering device 221 needs to tie up
When repairing replacement or cleaning, it can be convenient the switching of rough filtering device 221 and use.
As shown in figure 4, according to some embodiments of the present invention, heater 3 includes steam air heater ontology 31, cold wind input pipe
32, steam input pipe 33, warm wind efferent duct 34 and mixing air duct 35；The both ends of cold wind input pipe 32 are connected to an air duct
41 and steam air heater ontology 31 on, by an air duct 41 cold wind input steam air heater ontology 31 in；The two of steam input pipe 33
End is connected on jet chimney and steam air heater ontology 31, and the steam of crossing in jet chimney is input to steam air heater ontology 31
It is interior；The both ends of warm wind efferent duct 34 are connected on steam air heater ontology 31 and mixing air duct 35, will be in steam air heater ontology 31
Cold wind is input in mixing air duct 35 with the warm wind obtained after steam mixes is crossed, and the other end of mixing air duct 35 and coal pipe 11 connects
It is logical, with by warm wind by the dense phase pulverized coal of coal pipe 11 towards conveying in level-one pulverized coal combustor 12.Hereby it is achieved that cold wind liter
Temperature, using warm wind pulverized coal conveying, makes level-one pulverized coal combustor 12, second level pulverized coal combustor 13 and three-level coal to obtain warm wind
Coal dust in powder combustion chamber 14 is easier ignition.
Further embodiment according to the present invention, steam input pipe 33 include steam input general pipeline 331 and steam input branch
Pipe 332, steam inlet branch 332 have it is multiple, one end of multiple steam inlet branch 332 evenly and at intervals with steam air heater ontology 31
Be connected, the other ends of multiple steam inlet branch 332 is connected with steam input general pipeline 331, one end of steam input general pipeline 331 and
Jet chimney is connected, and steam inputs the other end closing of general pipeline 331.By the way that multiple steam inlet branch 332 are arranged, be conducive into
The cold wind entered in steam air heater ontology 31 is quickly sufficiently mixed, and improves cold wind heating rate.
Further embodiment according to the present invention, heater 3 further include hydrophobic development unit 36 and drain pipe 37, hydrophobic expansion
Container 36 is located at the lower section of steam air heater ontology 31, and the both ends of drain pipe 37 are connected to the bottom wall of steam air heater ontology 31 and hydrophobic
On flash vessel 36, the water in steam air heater ontology 31 is discharged into hydrophobic development unit 36.By being set below steam air heater ontology 31
Hydrophobic development unit 36 and drain pipe 37 are set, is conducive to for the condensed water in steam air heater ontology 31 being drained by drain pipe 37 hydrophobic
In flash vessel 36, it is ensured that steam air heater ontology 31 operates normally.
Further embodiment, heater 3 further include drain valve 38 and non-return valve 39, drain valve 38 according to the present invention
It is arranged in series on drain pipe 37 with non-return valve 39, and non-return valve 39 is close to hydrophobic development unit 36.By the way that drain valve 38 is arranged, have
Steam leakage is automatically prevented to the maximum extent simultaneously conducive to the condensed water in water discharge steam air heater ontology 31.By the way that non-return valve is arranged
39, the water that can be automatically prevented from hydrophobic development unit 36 flows back into steam air heater ontology 31.
Further embodiment according to the present invention, drain pipe 37 include hydrophobic branch pipe 371 and it is hydrophobic collect general pipeline 372,
Hydrophobic branch pipe 371 has multiple, and one end of multiple hydrophobic branch pipes 371 is equably connected with the bottom wall of steam air heater ontology 31 at equal intervals,
The other end of multiple drain pipes 37 is connected with the hydrophobic general pipeline 372 that collects, and drain valve 38 and non-return valve 39 are arranged in series in hydrophobic remittance
Collect on general pipeline 372.By the way that multiple hydrophobic branch pipes 371 are arranged, rapidly the condensed water in steam air heater ontology 31 can be arranged in time
Out.
As shown in Fig. 2, further including the control valve being arranged on the second flowline 212 according to some embodiments of the present invention
213.By the way that control valve 213 is arranged on the second flowline 212, main oil gun 23 can be carried out and assists the igniting of 24 rush-harvesting and rush-planting of oil gun,
Can also be only by the single rifle igniting of main oil gun 23, sparking mode is flexible.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of micro-oil ignition combustion device characterized by comprising coal burner, oil burning installation, heater and primary
Wind auxiliary combustion equipment, in which:
The coal burner includes coal pipe, level-one pulverized coal combustor, second level pulverized coal combustor, three-level pulverized coal combustor, cold
But wind membrane tube, main oil gun combustion chamber and auxiliary oil gun combustion chamber；The level-one pulverized coal combustor is in circular cone shape, the level-one coal
The small end of powder combustion chamber is arrival end and big end is outlet end, the outlet end of the level-one pulverized coal combustor and the second level coal dust
The arrival end of combustion chamber connects, and the level-one pulverized coal combustor and the second level pulverized coal combustor are respectively positioned in the coal pipe,
The outlet end of the second level pulverized coal combustor is concordantly connect with one end of the coal pipe, and one end of the coal pipe is protruded into described
The arrival end of three-level pulverized coal combustor is simultaneously connect with the arrival end of the three-level pulverized coal combustor, the main oil gun combustion chamber and institute
State auxiliary oil gun combustion chamber be biased to the level-one pulverized coal combustor arrival end be in tilted layout and with the level-one pulverized coal combustor
Connection, the main oil gun combustion chamber is close to the arrival end of the level-one pulverized coal combustor, and the auxiliary oil gun combustion chamber is close to institute
State the outlet end of level-one pulverized coal combustor；The part tube body of the three-level pulverized coal combustor and the coal pipe protrudes into the cooling
In wind membrane tube；
The oil burning installation includes oil circuit, filter device, main oil gun and auxiliary oil gun, and one end of the oil circuit is oil inlet and another
One end is branched off into the first flowline and the second flowline, and the filter device is arranged on the oil circuit, first flowline
The main oil gun is connected, second flowline connects the auxiliary oil gun, and the main oil gun and the auxiliary oil gun are fitted respectively
The main oil gun combustion chamber and the auxiliary oil gun combustion chamber are inserted into ground；
The heater is connected to the other end of the coal pipe, with by warm wind by the coal dust in the coal pipe towards described
It is conveyed in level-one pulverized coal combustor；
The First air auxiliary combustion equipment include an air duct, main oil gun airducts and auxiliary oil gun airducts, the main oil gun airducts and
One end of auxiliary oil gun airducts is connected by pipeline with an air duct, the main oil gun airducts and the auxiliary oil gun airducts
The other end connect respectively with the main oil gun and the auxiliary oil gun.
2. micro-oil ignition combustion device according to claim 1, which is characterized in that the main oil gun room includes being sequentially connected
The first Room, second Room and third room, the third room is connected with the level-one pulverized coal combustor, and first Room is cylinder
Shape, the second Room and the third room are circular cone shape, wherein the big end of the second Room is connected with the first Room, described
The small end of second Room is connected with the small end of the third room.
3. micro-oil ignition combustion device according to claim 2, which is characterized in that the auxiliary oil gun combustion chamber is cylinder
Shape.
4. micro-oil ignition combustion device according to claim 1, which is characterized in that the filter device includes two coarse filtration
Device and a fine filtering device are arranged in series in described first after two rough filtering devices are in parallel with the fine filtering device again and go out
Between oil pipe and the connecting portion and the oil inlet of second flowline, wherein two rough filtering devices are close to described
Oil inlet, connecting portion of the fine filtering device close to first flowline and second flowline.
5. micro-oil ignition combustion device described in any one of -4 according to claim 1, which is characterized in that the heater
Including steam air heater ontology, cold wind input pipe, steam input pipe, warm wind efferent duct and mixing air duct；The two of the cold wind input pipe
End is connected on an air duct and the steam air heater ontology, and the cold wind input in an air duct is described warm
In wind device ontology；The both ends of the steam input pipe are connected on jet chimney and the steam air heater ontology, will be described
Steam of crossing in jet chimney is input in the steam air heater ontology；The both ends of the warm wind efferent duct are connected to described warm
On wind device ontology and the mixing air duct, cold wind in the steam air heater ontology is inputted with the warm wind obtained after steam mixes is crossed
Into the mixing air duct, the mixing air duct is connected to the other end of the coal pipe, to pass through warm wind for the coal pipe
Dense phase pulverized coal towards conveying in the level-one pulverized coal combustor.
6. micro-oil ignition combustion device according to claim 5, which is characterized in that the steam input pipe includes that steam is defeated
Enter general pipeline and steam inlet branch, the steam inlet branch has multiple, and one end interval of multiple steam inlet branch is equal
It is connected evenly with the steam air heater ontology, the other end of multiple steam inlet branch is connected with steam input general pipeline,
One end of the steam input general pipeline is connected with the jet chimney, the other end closing of the steam input general pipeline.
7. micro-oil ignition combustion device according to claim 5, which is characterized in that the heater further includes hydrophobic expansion
Container and drain pipe, the hydrophobic development unit are located at the lower section of the steam air heater ontology, and the both ends of the drain pipe are separately connected
On the bottom wall and the hydrophobic development unit of the steam air heater ontology, the water in the steam air heater ontology is discharged into described hydrophobic
In flash vessel.
8. micro-oil ignition combustion device according to claim 7, which is characterized in that the heater further includes drain valve
And non-return valve, the drain valve and the non-return valve are arranged in series on the drain pipe, and the non-return valve is dredged close to described
Water flash vessel.
9. micro-oil ignition combustion device according to claim 8, which is characterized in that the drain pipe include hydrophobic branch pipe and
It is hydrophobic to collect general pipeline, the hydrophobic branch pipe have it is multiple, one end of multiple hydrophobic branch pipes at equal intervals equably with the warm wind
The bottom wall of device ontology is connected, and the other end of multiple drain pipes is connected with the hydrophobic general pipeline that collects, the drain valve and institute
It states non-return valve and is arranged in series in described hydrophobic collect on general pipeline.
10. micro-oil ignition combustion device described in any one of -4 according to claim 1, which is characterized in that further include setting
Control valve on second flowline.
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| CN201910896626.8A CN110529852A (en) | 2019-09-23 | 2019-09-23 | A kind of micro-oil ignition combustion device |
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| CN201910896626.8A CN110529852A (en) | 2019-09-23 | 2019-09-23 | A kind of micro-oil ignition combustion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112902184A (en) * | 2021-02-07 | 2021-06-04 | 哈尔滨工业大学 | Device for increasing solid waste burnout by adopting local oxygen-enriched combustion method in combustion chamber |
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