CN206875426U - Diffusion type all-premixing burner - Google Patents
Diffusion type all-premixing burner Download PDFInfo
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- CN206875426U CN206875426U CN201720436553.0U CN201720436553U CN206875426U CN 206875426 U CN206875426 U CN 206875426U CN 201720436553 U CN201720436553 U CN 201720436553U CN 206875426 U CN206875426 U CN 206875426U
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Abstract
The utility model discloses a kind of diffusion type all-premixing burner, including blower fan, changeover portion, mixing section and the head being sequentially connected with, cavity formed with connection in changeover portion, mixing section, head, center rifle is provided with cavity, center rifle extends to head by changeover portion, the first fuel gas inlet is provided with changeover portion, center rifle is connected by the first transfer passage with the first fuel gas inlet, and center rifle position is provided with burner in one end of head；The second fuel gas inlet is provided with mixing section, the compression ring that the second transfer passage connects with the second fuel gas inlet is provided with mixing section, compression ring is sleeved on outside the rifle of center, and the air that blower fan is sent into mixes with the combustion gas that compression ring is sent into mixing section；The center rifle is passed by the end of head, and the head is provided with multiple spouts in end position.This structure, solve at least Metal Fibre Combustion pre-mixing type combustion apapratus be easily tempered, easily block the problem of and diffusion flame burner discharged nitrous oxides it is high the problem of.
Description
Technical field
A kind of burner is the utility model is related to, specifically, the utility model is related to a kind of diffusion type full premix combustion
Device, it can be applied to various types of industrial combustion gas boiler, generating and Chemical Manufactures etc..
Background technology
Burner, it is to make fuel and air spray the device of mixed combustion in a certain way to be referred to as, it is according to application environment
Difference can divide into industrial burner, civilian burner etc.., can whether to premix the standard of being combined into by taking industrial burner as an example
To be divided into full premixed burner and diffusion flame burner etc..
Full premixed burner is the burner designed according to fully premixed combustion method, before combustion, has been supplied
Into whole air needed for burning, and combustion gas is set to be sufficiently mixed with air, then air jet pipe (or the metallic fiber combustion by burner
Burn head) spray and burnt.This burner, due to being pre-mixed uniformly, so can be under optimal excess air coefficient
Realize completely burned.Therefore, during burning temperature than more uniform, it is not easy to there is localized hyperthermia.So the discharge of nitrogen oxides is not
Can be very high.But if it is easy for that tempering phenomenon occurs using Metal Fibre Combustion.
Diffusion flame burner is the burner designed according to diffusion type combustion method, and the required air that burns is in combustion process
Middle supply.This burner air and combustion gas are difficult highly uniform mixing, localized hyperthermia easily occur, temperature distribution in burner hearth
It is uneven, easily cause discharged nitrous oxides rise.
Utility model content
Technical problem to be solved in the utility model is, for full premixed burner in the prior art and expansion
Dissipate the deficiency present in formula burner, there is provided a kind of diffusion type all-premixing burner, it can solve the problem that full premixed combustion
The discharged nitrous oxides present in easy tempering, unsafe problem and diffusion flame burner present in device are difficult to what is reduced
Problem.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of diffusion type full premix combustion
Device, it includes blower fan, changeover portion, mixing section and the head being sequentially connected with, and the changeover portion, mixing section, head are interior formed with even
Logical cavity, center rifle is provided with the cavity, wherein：
The center rifle extends to the head by the changeover portion, and the first fuel gas inlet is provided with the changeover portion,
The center rifle is connected by the first transfer passage with first fuel gas inlet, and the center rifle position is in one end of the head
It is provided with burner；
The second fuel gas inlet is provided with the mixing section, the second transfer passage and institute are provided with the mixing section
The compression ring of the second fuel gas inlet connection is stated, the compression ring is sheathed on outside the center rifle, the air and institute that the blower fan is sent into
The combustion gas for stating compression ring feeding mixes in the mixing section；
The center rifle is passed by the end of the head, and the head is provided with multiple spouts in end position.
Preferably, the air inlet of the blower fan is provided with blender.
Preferably, the compression ring is circumferentially provided with multiple branch pipes along it, is offered on the branch pipe in the future
The dispensing orifice of the mixing section is fed through from the combustion gas of second fuel gas inlet.
Preferably, circumference of multiple branch pipes along the compression ring is uniformly distributed, and is offered on the branch pipe
Multiple dispensing orifices.
Preferably, multiple branch pipes are arranged on the compression ring in " rice " font.
Preferably, it is provided with the mixing section and/or the head and is sheathed on outside the center rifle, is used for
Air mixture and the cyclone of air.
Preferably, the cyclone is inversely arranged in the mixing section and/or the head.
Preferably, stable flame pan is fixed with the end of the head, the stable flame pan is sheathed on the center rifle
Outside, multiple notch settings are on the stable flame pan.
Preferably, the stable flame pan includes cylindrical section and positioned at the cylindrical section close to described mixing section one end
Conical cylinder section, the diameter of the one end of the conical cylinder section away from the cylindrical section is more than the diameter close to one end of the cylindrical section,
The end set of the cylindrical section has end cap, and the spout includes outer ring jet and the setting being arranged on the conical cylinder section
Inner ring jet on the end cap.
Preferably, the outer ring jet is circle, and the outer ring jet is with its center line perpendicular to described
The mode of the conical surface of conical cylinder section is set.
Preferably, the inner ring jet is circle, and the inner ring jet is with its center line parallel to described
The mode of the center line of center rifle is set.
Preferably, the head is provided with circular cover in the position of end, and the circular cover includes circle
Outer panels and the circular wainscot protruded by the centre position of the circular outer panels, the spout include being arranged on the circle
First circular hole of the first reference circle position of shape wainscot, the bar hole being arranged between first circular hole of adjacent two with
And it is arranged on the second circular hole of the second reference circle position of the circular wainscot.
Preferably, the distributor for protruding from the circular outer panels is provided with the circular outer panels, it is described
Spout also includes being arranged on the side bar hole of the distributor and is arranged on positive 3rd circular hole of the distributor, institute
State and gas gun is equipped with distributor, the gas gun supplies combustion gas by the compression ring.
Preferably, the end set of the head has circular closure plate, and the spout includes being arranged on the circle
Fumarole on closure plate and be arranged on the head side ring bar shaped seam, the ring bar shaped seam is close to the head
End.
Preferably, the centre position of the side of the head is provided with balance steam vent.
Preferably, the head is provided with circular cover in the position of end, and the circular cover includes circle
Outer panels and by the recessed circular wainscot in the centre position of the circular outer panels, the spout includes being arranged on the circle
First circular hole of the first reference circle position of shape wainscot, it is arranged on the second circular hole of the second reference circle position, is arranged on the 3rd
3rd circular hole of reference circle position and the bar hole being arranged between second circular hole of adjacent two, second circular hole
Aperture be more than the aperture of first circular hole and the 3rd circular hole, the spout also includes being arranged on the circular outside
4th circular hole of multiple reference circle positions of plate and the ring bar shaped seam for the side for being arranged on the head.
Preferably, waist-shaped hole is also set up in the circular outer panels, gas gun is worn on the waist-shaped hole.
Implement diffusion type all-premixing burner of the present utility model, have the advantages that：Wherein, the gun barrel of center rifle
Interior supply combustion gas, the mode of the outer air feed of gun barrel so that burner of the present utility model maintains the part work(of diffusion flame burner
Energy.The mode of outer ring jet and inner ring jet, mixed gas can be delivered to burner hearth diverse location, make used by spout
Obtain flame sufficiently to be deployed, avoid flame from excessively concentrating, reduce the mean temperature of flame.Center rifle uses staggered floor with spout
The mode of arrangement, i.e. outer ring jet away from aditus laryngis leading portion recently, inner ring jet take second place, center rifle is farthest apart from aditus laryngis, this
Staggered floor, the burner of dislocation arrangement form different pressure field areas, enable to air-flow to be whirled up flowing, and form interior circulation,
Fully burning, reduce nitrogen oxides.When selecting two-stage cyclones inversely to arrange, the mixing that can strengthen air and combustion gas is imitated
Fruit, mixed gas are sent into burner hearth completely burned at once, reduce nitrogen oxides.Branch pipe is in that rice font is arranged on compression ring, can
Reach the purpose for evenly distributing combustion gas.The head of the second way, multiple gas guns are set, diffusion type burning can be expanded
Occupy ratio, in addition, stabilize the permanent flame for maintaining burner hearth, avoid cutoff that burner is likely to occur when running, flame-out existing
As.The head of the third mode, fumarole and balance steam vent are set, when head hypertonia, steam vent can be passed through
Certain blender is discharged, ensures that furnace pressure is steady.The head of 4th kind of mode, structure is simpler, processing is easier, cost
It is lower, and outer ring is a big annulus, and gas distribution is not limited by dispenser shape, and the region of distribution is broader.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the cross section structure diagram of one embodiment of diffusion type all-premixing burner of the present utility model, and it shows
The first head is gone out；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 A portions partial enlarged drawing；
Fig. 4 is Fig. 1 B portions partial enlarged drawing；
Fig. 5 is the schematic diagram of second of head of the present utility model；
Fig. 6 is Fig. 5 right view；
Fig. 7 is the schematic diagram of the third head of the present utility model；
Fig. 8 is the schematic diagram of the 4th kind of head of the present utility model；
Fig. 9 is Fig. 8 right view；
Figure 10 is the structural representation of blender in the utility model.
Wherein, 1- housings；2- stable flame pans；3- inner ring jets；4- outer rings jet；5- centers rifle；501- burners；6- revolves
Flow device；7- compression rings；8- branch pipes；801- dispensing orifices；The fuel gas inlets of 9- first；The fuel gas inlets of 10- second；11- sleeve pipes；12- is mixed
Device；13rd, 13 '-circular cover；14th, 14 '-circular outer panels；15th, 15 '-circular wainscot；16th, 16 '-the first circular hole；17、
17 '-bar hole；18th, 18 '-the second circular hole；19- distributors；20th, 20 '-the three circular hole；21- gas guns；22- circle closure plates；
23- fumaroles；The bar shaped of 24- rings is stitched；25- balances steam vent；26 '-the four circular holes；27 '-waist-shaped hole；100- heads；200- is mixed
Close section；300- changeover portions；400- blower fans；500- air inlets.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiment and attached
Figure, the utility model is further described.
The utility model is the combination by pre-mixing type combustion apapratus and diffusion flame burner, in terms of taking its respective advantage, with
The nitrogen oxygen present in easy tempering, unsafe problem and diffusion flame burner present in solution full premixed burner
The problem of compound discharge is difficult to reduce.
Shown in reference picture 1, Fig. 2, a kind of diffusion type all-premixing burner of the present utility model, it uses the first embodiment
Head.The burner includes blower fan 400, changeover portion 300, mixing section 200 and the head 100 being sequentially connected with.As illustrated, mistake
Cross section 300 to be connected at the air outlet of blower fan 400, mixing section 200 connects with changeover portion 300, head 100 and the phase of mixing section 200
Connect, the final output fuel gas of head 100.The cavity formed with connection is (in figure in changeover portion 300, mixing section 200, head 100
Do not indicate), the cavity can convey air and enter to mixing through changeover portion 300 as air and the flow cavity of combustion gas, blower fan 400
Section 200, being sent on mixing section 200 has combustion gas, and air starts to contact mixing with combustion gas here, is specifically introduced below.
As Fig. 1 shows, center rifle 5 is provided with cavity, the center rifle 5 maintain supply in the gun barrel of diffusion flame burner,
The structure of the outer air feed of gun barrel, and this center rifle 5 has taken into account the function of burning torch, and the center rifle 5 is in combustion of the present utility model
After burner is lighted a fire successfully, that is, switch to the center rifle 5 of burner, and carry burner 1%-30% load.Further,
It is exactly to maintain the permanent flame of burner hearth that the center rifle 5, which also has an important effect, is remained among burner operation
The state of work, easily it is tempered which solves all-premixing burner, unsafe problem.
As Fig. 1 shows, center rifle 5 extends to head 100 by changeover portion 300, and the first fuel gas inlet is provided with changeover portion 300
9, center rifle 5 is connected by the first transfer passage (not marked in figure) with the first fuel gas inlet 9, and center rifle 5 is located at the one of head 100
End is provided with burner 501.Center rifle 5 is generally tubular, and the first transfer passage is located at the side of center rifle 5, and combustion gas can be by first
Fuel gas inlet 9, the first transfer passage are inputted to center rifle 5, afterwards, are supplied to burner 501.Screwed in first fuel gas inlet 9
There is blind cover (not marked in figure), after opening blind cover, first fuel gas inlet 9 can be connected with gas feeder.
Shown in reference picture 3, the second fuel gas inlet 10 is provided with mixing section 200, second is provided with mixing section 200
The compression ring 7 that transfer passage (not marked in figure) connects with the second fuel gas inlet 10, compression ring 7 are sheathed on outside center rifle 5, blower fan 400
The combustion gas that the air of feeding is sent into compression ring 7 mixes in mixing section 200.Compression ring 7 is the Common parts of burner arts, and it is used for point
With combustion gas, with reference to shown in the figure, outer combustion gas is entered in compression ring 7 via the second fuel gas inlet 10 and the second transfer passage, gas
Ring 7 is distributed the combustion gas to mixing section 200 by its own assignment channel set, so as to the air being sent into blower fan 400
Tentatively mixed.Further combined with shown in Fig. 1, in the utility model, sleeve pipe 11 is arranged with outside center rifle 5, it is foregoing
Center rifle 5 is fixed in the sleeve pipe 11, and stable flame pan 2, cyclone 6 and compression ring 7 are sheathed on outside the sleeve pipe 11.
As Fig. 3 shows, in the utility model, compression ring 7 is circumferentially provided with multiple branch pipes 8 along it, is offered on branch pipe 8 for will
Combustion gas from the second fuel gas inlet 10 is fed through the dispensing orifice 801 of mixing section 200.It can be readily appreciated that branch pipe 8 and compression ring 7
It is connection, so as to which the fuel gas transmission of compression ring 7 is sent into mixing section 200 via dispensing orifice 801.As a kind of preferred side
Case, circumference of multiple branch pipes 8 along compression ring 7 are uniformly distributed, and multiple dispensing orifices 801 are offered on branch pipe 8, as illustrated in the drawing,
Length direction arrangement of the plurality of dispensing orifice 801 along branch pipe 8, the dispensing orifice 801 can be inclined with 3-6mm different-diameters, difference
Rake angle is configured.Further preferably, multiple branch pipes 8 on compression ring 7 in " rice " font arrangement, in particular to, compression ring 7 itself
The middle intersection point of rice word is formed, and the quantity of branch pipe 8 is eight, so as to form a meter word.Arranged using M shape, compression ring 7 and head
100 is coaxial, positioned at the afterbody of mixing section 200, the foraminate branch pipe 8 of N number of band arranged around compression ring 7, it can be ensured that Mei Gezhi
The gas sprayed on pipe 8 is basically identical, reaches the purpose evenly distributed.
In addition, to realize that air mixes with the good of combustion gas, it is provided with mixing section 200 and/or head 100 in being sheathed on
Cyclone 6 outside heart rifle 5, for air mixture and air, cyclone 6 is between compression ring 7 and stable flame pan 2, shown in Fig. 1
The utility model in, cyclone 6 is provided with mixing section 200 and head 100, specifically, at the rear portion of mixing section 200
And the rear portion of head 100, cyclone 6 before changeover portion 300 are 5-20mm apart from compression ring 7.Further, cyclone 6
Inversely arranged in mixing section 200 and head 100.Mixed gas is passed through inversely arranges cyclone mixer using two-stage, strengthens mixed
Effect is closed, mixed gas is sent into burner hearth completely burned at once, reduces the discharge of nitrogen oxides.In addition, mixed gas is from head
100 is spouting with high speed, has splendid cooling effect to the part of head 100, the problem of avoiding the temperature of head 100 too high.Rotation
The blade angle of device 6 is flowed, can be 0-50 ° of all standing.
Reference picture 4 shows further combined with Fig. 2, is fixed with stable flame pan 2 in head 100, stable flame pan 2 be sheathed on center rifle 5 it
Outside, multiple spouts are provided with stable flame pan 2, spout can be different in the axial location of head 100 from burner 501, are staggered.Surely
Flame disk 2 can be fixed on the housing 1 of head 100 by fixed plate, and the housing 1 is tubular steel housing.
As Fig. 4 shows, stable flame pan 2 includes cylindrical section (not marked in figure) and positioned at cylindrical section close to the one end of mixing section 200
Conical cylinder section (is not marked) in figure, herein, the uniform wall thickness of cylindrical section and conical cylinder section.The diameter of the one end of conical cylinder section away from cylindrical section is big
In the diameter close to one end of cylindrical section, the end set of cylindrical section has end cap (not marked in figure), and spout includes being arranged on cone cylinder
Outer ring jet 4 in section and the inner ring jet 3 being arranged on end cap.Outer ring jet 4 is distributed in inner ring jet 3
On different reference circles.It is preferred that outer ring jet 4 is circle, the conical surface of the outer ring jet 4 with its center line perpendicular to conical cylinder section
Mode set.Further, inner ring jet 3 is circular, center of the inner ring jet 3 with its center line parallel to center rifle 5
The mode of line is set.
Mixed gas is delivered to burner hearth diverse location by spout along head 100 radially using layering (), step-by-step arrangement, makes flame
It is sufficiently spread out, avoids flame from excessively concentrating, reduces the mean temperature of flame.Inside and outside layer is carried out using different reference circles
The supply of combustion gas, center rifle 5 are burnt using diffusion type, and stable flame pan 2 and center rifle 5 are dropped by the way of segmentation supplies fuel
Row.According to burden apportionment, full premix part (can complete) to undertake burner 70%-99% load by mixing section, in
Heart rifle 5 undertakes burner 1%-30% load.The arrangement form of center rifle 5 and jet is that staggered floor is arranged, outer ring jet
4 apart from aditus laryngis leading portion recently, inner ring jet 3 secondly, center rifle 5 it is farthest away from aditus laryngis.Pass through staggered floor, the burner of dislocation arrangement
Head 100, different pressure field areas is formed, air-flow can be made to be whirled up flowing, formed interior circulation, fully burning, reduce nitrogen
The discharge of oxide.
Shown in reference picture 5, Fig. 6, it illustrates the head of second of embodiment, head section is only described herein.
Head 100 is cylindrical, and head is provided with circular cover 13 in the position of end, and circular cover 13 includes circular outer
Panel 14 and the circular wainscot 15 that (or perhaps protuberance) is protruded by the centre position of circular outer panels 14, spout include setting
Put the first reference circle position of circular wainscot 15 the first circular hole 16, be arranged between two adjacent the first circular holes 16
Bar hole 17 (interlaced arrangement of 17 and first circular hole of bar hole 16) and the second reference circle position for being arranged on circular wainscot 15
The second circular hole 18.Using head central shaft as the center of circle, coaxial bosom is disposed with center rifle 5 (taking into account burning torch), and coaxial first
Reference circle is disposed with multiple first circular holes 16 and bar hole 17, and the diameter range of the first circular hole 16 is 10-50mm.Coaxial the
Two reference circles are disposed with multiple second circular holes 18, and its pore diameter range is 5-20mm, less than the first circular hole 16.And three above
Divide with cloth on circular wainscot 15, the circular wainscot 15 of head is higher by circular outer panels 14.
Further, the distributor 19 for protruding from circular outer panels 14 is provided with circular outer panels 14, spout also includes setting
Put distributor 19 side bar hole (not shown) and be arranged on positive 3rd circular hole 20 of distributor 19, distribution
Gas gun 21 is equipped with device 19, gas gun 21 supplies combustion gas by compression ring.Coaxial 3rd reference circle arranges multiple mixing
Qi leel orchestration 19, the quantity of distributor 19 determine that coverage is 2-12 according to burner capacity.Open in the front of distributor 19
There is diameter range to be provided with strip hole (i.e. rectangle) for circular (or polygon) holes of 3-50mm, the side of distributor 19, cover model
Enclose：10-200mm of long side, 3-50mm of broadside.1-4 gas guns 21, the top of spray gun are arranged in each distributor 19
The top plate of distributor 19 is higher by, and the top plate of distributor 19 is higher by head outer panels again.More gas guns 21 of arrangement in distributor 19.
Its purpose has two：First, expanding the ratio of occupying of diffusion type burning, guarantee diffusion type burning accounts for the ratio covering of total burner
Scope is 1-50% load；Two be due to the quantity for increasing gas gun, more stabilizes the permanent flame for maintaining burner hearth,
Avoid the cutoff, flame-out phenomenon that burner is likely to occur when running, the security of operation is higher.
Shown in reference picture 7, it illustrates the head of the third embodiment, head section is only described herein.
The end set of head 100 has a circular closure plate 22, spout include the fumarole 23 that is arranged on circular closure plate 22 with
And it is arranged on ring bar shaped 24 (for example, less looping pits of multiple width dimensions) of seam of the side of head, ring bar shaped seam 24
Close to the end of head.Further, balance steam vent 25 is provided with the centre position of the side of head.Head is cylindrical case
Body, rear portion are connected with mixing section.Head top front is circular closure plate 22, is disposed with closure plate N number of circular (or polygon)
It is equal sized (or) fumarole 23, the diameter of hole covers 3-20mm.Along tubular shell ring and apart from closure plate 5-
20mm goes out to be disposed with ring bar shaped seam 24,3-30mm of gap width.Balance steam vent 25 is disposed with the middle part of combustion head, when
When head pressure is too high, a certain amount of gaseous mixture can be discharged by the balance pipe at middle part, ensure that furnace pressure is steady.
Reference picture 8, Fig. 9, it illustrates the head of the 4th kind of embodiment, head section is only described herein.
Such as Fig. 8, Fig. 9, head is provided with circular cover 13 ' in the position of end, and circular cover 13 ' includes circular outer panels
14 ' and by the recessed circular wainscot 15 ' in the centre position of circular outer panels 14 ', spout includes being arranged on circular wainscot
First circular hole 16 ' of 15 ' the first reference circle position, it is arranged on the second circular hole 18 ' of the second reference circle position, is arranged on the 3rd
3rd circular hole 20 ' of reference circle position and the bar hole 17 ' being arranged between two adjacent the second circular holes 18 ', the second circle
The aperture in hole 18 ' is more than the aperture of the first circular hole 16 ' and the 3rd circular hole 20 '.
Further, spout also include be arranged on circular outer panels 14 ' multiple reference circle positions the 4th circular hole 26 ' and
It is arranged on the ring bar shaped seam (not shown) of the side of head.In addition, waist-shaped hole 27 ', waist are also set up in circular outer panels 14 '
Gas gun (not shown) is worn in type hole 27 '.The embodiment closes multiple distributors 19 on second of embodiment head
And be a large circle, the side of annulus is provided with 3~20mm bar shaped seam, using this head and second of embodiment head phase
Than：Structure is simpler, processing is easier, and cost is lower, and outer ring is a big annulus, and gas is distributed not by distributor shape
The limitation of shape, the region of distribution are broader.
Shown in reference picture 10, diffusion type all-premixing burner of the present utility model also includes a blender 12, and it is installed
In the position of air inlet 500 of blower fan, the blender can be connected to the air inlet 500 of blower fan using modes such as bolt connections
Place.
The discharge index of this burner can be under conditions of flue gas recirculating technique be not added with, and nitrogen oxides can be stablized
Control is in below 50mg/Nm3, if using flue gas recirculating technique (FGR), nitrogen oxides can be with stability contorting in 30mg/Nm3
Below.Because this burner structure is simple, production cost is low, using a variety of complex arts drop row in use, operated in operation
Simply, securely and reliably, operating cost it is low.So have very high use and promotional value, will commercially extensive utilization, be mesh
Preceding domestic and international low-nitrogen discharged leading-edge products, meet safe and environment-friendly, energy-saving equipment requirement that country advocates, it will widely use
In a variety of production fields.This diffusion type all-premixing burner of the present utility model, solves metallic fiber surface-type
All-premixing burner is easily tempered, unsafe problem；It is difficult highly uniform to solve diffusion flame burner air and combustion gas
, easily there is localized hyperthermia in mixing, and temperature distribution is uneven in burner hearth, easily causes the problem of discharged nitrous oxides raise；Solution
Diffusion type of having determined burning wind combustion is than mixing the problem of poor；Solves metallic fiber surface-type all-premixing burner regular maintenance work
The problem of work amount is larger；Solve metallic fiber surface-type all-premixing burner blender and combustion head blockage problem.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (17)
1. a kind of diffusion type all-premixing burner, it is characterised in that including blower fan, changeover portion, mixing section and the machine being sequentially connected with
Head, the cavity formed with connection in the changeover portion, mixing section, head, center rifle is provided with the cavity, wherein：
The center rifle extends to the head by the changeover portion, and the first fuel gas inlet is provided with the changeover portion, described
Center rifle is connected by the first transfer passage with first fuel gas inlet, and the center rifle position is set in one end of the head
There is burner；
The second fuel gas inlet is provided with the mixing section, the second transfer passage and described the are provided with the mixing section
The compression ring of two fuel gas inlets connection, the compression ring are sheathed on outside the center rifle, the air that the blower fan is sent into and the gas
The combustion gas that ring is sent into mixes in the mixing section；
The center rifle is passed by the end of the head, and the head is provided with multiple spouts in end position.
2. diffusion type all-premixing burner according to claim 1, it is characterised in that the air inlet of the blower fan is provided with
Blender.
3. diffusion type all-premixing burner according to claim 1, it is characterised in that the compression ring is circumferentially provided with along it
Multiple branch pipes, point for the combustion gas from second fuel gas inlet to be fed through to the mixing section is offered on the branch pipe
Distribution.
4. diffusion type all-premixing burner according to claim 3, it is characterised in that multiple branch pipes are along the gas
The circumference of ring is uniformly distributed, and multiple dispensing orifices are offered on the branch pipe.
5. diffusion type all-premixing burner according to claim 4, it is characterised in that multiple branch pipes are in the compression ring
It is upper to be arranged in " rice " font.
6. diffusion type all-premixing burner according to claim 1, it is characterised in that the mixing section and/or the machine
Head in be provided be sheathed on outside the center rifle, the cyclone for air mixture and air.
7. diffusion type all-premixing burner according to claim 6, it is characterised in that the cyclone is in the mixing section
And/or inversely arranged in the head.
8. diffusion type all-premixing burner according to claim 1, it is characterised in that be fixed with the end of the head
Stable flame pan, the stable flame pan are sheathed on outside the center rifle, and multiple notch settings are on the stable flame pan.
9. diffusion type all-premixing burner according to claim 8, it is characterised in that the stable flame pan include cylindrical section with
And the conical cylinder section positioned at the cylindrical section close to described mixing section one end, the one end of the conical cylinder section away from the cylindrical section it is straight
Footpath is more than the diameter close to one end of the cylindrical section, and the end set of the cylindrical section has end cap, and the spout includes setting
Outer ring jet on the conical cylinder section and the inner ring jet being arranged on the end cap.
10. diffusion type all-premixing burner according to claim 9, it is characterised in that the outer ring jet is circle,
The outer ring jet is set in a manner of its center line is perpendicular to the conical surface of the conical cylinder section.
11. diffusion type all-premixing burner according to claim 9, it is characterised in that the inner ring jet is circle,
The inner ring jet is set in a manner of its center line is parallel to the center line of the center rifle.
12. diffusion type all-premixing burner according to claim 1, it is characterised in that the head is in the position of end
Circular cover is provided with, what the circular cover protruded including circular outer panels and by the centre position of the circular outer panels
Circular wainscot, the spout include being arranged on the first circular hole of the first reference circle position of the circular wainscot, are arranged in
Bar hole between two adjacent first circular holes and the second reference circle position for being arranged on the circular wainscot
Second circular hole.
13. diffusion type all-premixing burner according to claim 12, it is characterised in that set in the circular outer panels
Have a distributor for protruding from the circular outer panels, the spout also include the side bar hole for being arranged on the distributor and
Positive 3rd circular hole of the distributor is arranged on, is equipped with gas gun on the distributor, the gas gun passes through
The compression ring supplies combustion gas.
14. diffusion type all-premixing burner according to claim 1, it is characterised in that the end set of the head has
Circular closure plate, the spout include being arranged on the fumarole on the circular closure plate and the ring for the side for being arranged on the head
Stitched to bar shaped, the ring bar shaped seam is close to the end of the head.
15. diffusion type all-premixing burner according to claim 14, it is characterised in that in the side of the head
Meta, which installs, is equipped with balance steam vent.
16. diffusion type all-premixing burner according to claim 1, it is characterised in that the head is in the position of end
It is provided with circular cover, the circular cover includes circular outer panels and recessed by the centre position of the circular outer panels
Circular wainscot, the spout include being arranged on the first circular hole of the first reference circle position of the circular wainscot, are arranged on
Second circular hole of the second reference circle position, it is arranged on the 3rd circular hole of the 3rd reference circle position and is arranged on two adjacent institutes
The bar hole between the second circular hole is stated, the aperture of second circular hole is more than the hole of first circular hole and the 3rd circular hole
Footpath, the spout also include being arranged on the 4th circular hole of multiple reference circle positions of the circular outer panels and are arranged on described
The ring bar shaped seam of the side of head.
17. diffusion type all-premixing burner according to claim 16, it is characterised in that also set in the circular outer panels
Waist-shaped hole is put, gas gun is worn on the waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720436553.0U CN206875426U (en) | 2017-04-24 | 2017-04-24 | Diffusion type all-premixing burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720436553.0U CN206875426U (en) | 2017-04-24 | 2017-04-24 | Diffusion type all-premixing burner |
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| Publication Number | Publication Date |
|---|---|
| CN206875426U true CN206875426U (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720436553.0U Active CN206875426U (en) | 2017-04-24 | 2017-04-24 | Diffusion type all-premixing burner |
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| Country | Link |
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| CN (1) | CN206875426U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730975A (en) * | 2017-04-24 | 2018-11-02 | 上海诺特飞博燃烧设备有限公司 | Diffusion type all-premixing burner |
| CN108826292A (en) * | 2018-09-03 | 2018-11-16 | 上海诺特飞博燃烧设备有限公司 | Steady flame device and its burner and boiler |
| CN110145737A (en) * | 2019-04-19 | 2019-08-20 | 王晓峰 | A kind of rotational-flow stable-flame radial spray low NO |
-
2017
- 2017-04-24 CN CN201720436553.0U patent/CN206875426U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730975A (en) * | 2017-04-24 | 2018-11-02 | 上海诺特飞博燃烧设备有限公司 | Diffusion type all-premixing burner |
| CN108826292A (en) * | 2018-09-03 | 2018-11-16 | 上海诺特飞博燃烧设备有限公司 | Steady flame device and its burner and boiler |
| CN110145737A (en) * | 2019-04-19 | 2019-08-20 | 王晓峰 | A kind of rotational-flow stable-flame radial spray low NO |
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