CN206055619U

CN206055619U - Low NO

Info

Publication number: CN206055619U
Application number: CN201620704316.3U
Authority: CN
Inventors: 王鸿川; 李亚运; 王国政
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-06
Filing date: 2016-07-06
Publication date: 2017-03-29
Anticipated expiration: 2026-07-06

Abstract

The utility model discloses a kind of low NO, its drip irrigation device is, blender in low NO includes cylinder, fuel gas inlet, inner core, the combustion air spinning disk on inner core inwall are provided with air inlet front end in cylinder, inner core is provided with the rear side for being located at combustion air spinning disk along air intake direction and enters air duct near the end on rear side of air inlet, enter air duct, inner core and cylinder inboard wall to be tightly connected to form combustion gas point chamber, enter air duct and be provided with oblique pod apertures；Place on rear side of inner core air intake is located in cylinder and is provided with a swirl vanes, a swirl vanes form mixed once chamber with air intake cylinder.It is arranged such, Jing combustion gas point chamber is sprayed from oblique pod apertures, the combustion gas of ejection can form the very brief and strong combustion gas stream of multiple sub-threads, and the air stream that blower fan is sent into forms very brief strong rotary air stream through combustion air spinning disk, rotary air stream is in a ring, multiple sub-thread combustion gas streams are impacted, and make the air in mixed once gas complete Theory of Combustion air-fuel ratio be reached with combustion gas.

Description

Low NO

Technical field

This utility model is related to the burner arts of burn gas fuel, more particularly to a kind of low NO.

Background technology

At present, the Chinese patent of Publication No. 102913909A discloses mixed burner after a kind of metallic fiber, and it wraps Include combustion head, blower fan and blender；Blender is provided with fuel gas inlet；The combustion gas swirl-flow devices include at least two eddy flows Piece, spinning disk are formed by hollow annulus stretching, and the diameter of the spinning disk hollow space is less than the diameter of the combustion head, its In a spinning disk be close to the fuel gas inlet and be obliquely installed, the place of being close to is the leeward side of blower fan air-supply, so that mixing Combustion gas and air in device forms eddy flow and is sufficiently mixed；During work, combustion gas is sent into the air in blender with blower fan and is flowed into In blender, after being sufficiently mixed by combustion gas swirl-flow devices, this combustion gas swirl-flow devices are only by the combustion gas of fuel gas inlet Through spinning disk as guiding mixing, whole process only has mixed once process, and mixed effect is not reaching to optimum state, causes Can not mix and reach complete Theory of Combustion air-fuel ratio.

Utility model content

A purpose of the present utility model is to provide a kind of low NO, and which has good excellent of rational in infrastructure, mixed effect Point.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of blender, including axially through the cylinder for air inlet, cylinder is provided with fuel gas inlet positioned at air inlet front end, institute Stating in cylinder and inner core being provided with air inlet front end, the inwall of inner core is provided with combustion air spinning disk, end of the inner core on rear side of air inlet Portion is provided with into air duct, is entered air duct and is located at the rear side of combustion air spinning disk along air intake direction, enters air duct, inner core and cylinder inboard wall close Envelope connection forms combustion gas point chamber, enters air duct and is provided with oblique pod apertures；Place on rear side of inner core air intake is located in the cylinder and is provided with one Secondary swirl vanes, a swirl vanes form mixed once chamber with air intake cylinder；The distinguished and admirable of interior combustion air spinning disk is led with oblique Discharge orifice it is distinguished and admirable intersect to be mixed to form in mixed once within the chamber flow to identical mixed once gas with interior combustion air spinning disk Body, and mixed once gas flow is to a swirl vanes.

It is arranged such, combustion gas Jing fuel gas inlets enter combustion gas point chamber, and Jing combustion gas point chamber is ejected to once from oblique pod apertures In mixing chamber, the combustion gas of ejection can form the very brief and strong combustion gas stream of multiple sub-threads, and the air that blower fan is sent into is flowed through Cross combustion air spinning disk and form very brief strong rotary air stream, rotary air stream in a ring, impacts multiple sub-thread combustion gas streams, this During, air stream is intersected with sub-thread combustion gas stream and is mixed to form mixed once gas, the air and combustion gas in mixed once gas Reach complete Theory of Combustion air-fuel ratio.

Further arrange：It is located on rear side of a swirl vanes along air intake direction in the cylinder and is provided with swirl flow leaf Wheel, forms secondary mixing chamber between swirl flow impeller and a swirl vanes, is provided with and fixes a swirl vanes in cylinder With swirl flow impeller and stop mixed once gas flow fixed mount.

It is arranged such, a swirl vanes and swirl flow impeller itself do not do active rotation, and fixed mount can be to once Swirl vanes and swirl flow impeller its fixation, meanwhile, the stop of Jing fixed mounts is carried out to mixed once gas secondary mixed Close, strengthen mixed effect.

Further arrange：The fixed mount includes that an eddy flow is fixed at the snap ring being fixed on cylinder inboard wall and snap ring two ends The fixing axle of impeller and swirl flow impeller, fixing axle and snap ring are coaxially disposed with cylinder.

It is arranged such, snap ring is easy to be fixed on cylinder inboard wall, fixing axle is easy to a swirl vanes and swirl flow leaf The fixation of wheel.

Further arrange：Swirl vanes and swirl flow impeller include the cone coaxial with cylinder, uniform To the blade of cone excircle, blade is located on the distinguished and admirable path of mixed once gas, and the blade of a swirl vanes is in incline Tiltedly arrange, combustion air spinning disk is helically arranged, in opposite direction according to air intake direction impeller and the blade screw of air-flow.

It is arranged such, enables mixed gas to take advantage of a situation on the blade for flowing to a swirl vanes, meanwhile, because impeller and blade The hand of spiral produces refraction to blade conversely, mixed once gas impacts, then is guided by blade, and mixed effect is more preferably.

Further arrange：The snap ring is located at and falls within the distinguished and admirable path of mixed once gas.

It is arranged such, snap ring can stop mixed once gas, mixed once gas is reflected again, carry out secondary mixing.

Further arrange：The pointed cone of the cone of the swirl flow impeller passes through the snap ring center of circle, and pointed cone is near an eddy flow Impeller and the cone bottom interval setting with a swirl vanes.

It is arranged such, pointed cone can stop mixed once gas, mixed once gas is reflected again, carry out secondary mixing, Taken advantage of a situation by pointed cone and guided to the blade of swirl flow impeller.

Further arrange：The combustion air spinning disk is vertical with the inwall of inner core, combustion air spinning disk and inner core axis shape Into angle（a）For 30 °～60 °.

It is arranged such, strengthens the mixing of combustion gas and air.

Further arrange：It is described enter air duct on oblique pod apertures axis and enter air duct axis formed angle（b）For 45 °～60 °.

It is arranged such, strengthens the intake efficiency of combustion gas, make efficiency of combustion at one's best.

Another object of the present utility model is to provide a kind of low NO, and which has high excellent of combustion even, the thermal efficiency Point.

A kind of low NO, also including combustion head, igniter, blower fan, blower motor, the control with PLC Cabinet, is connected with intake stack at the air intake of blower fan, the radial line of intake stack is provided with rotating shaft, the catch in rotating shaft and driving The air mix door servomotor of axis of rotation, air mix door servomotor connection PLC, the outer end of intake stack Tubular air filter is installed.

It is arranged such, PLC control catch rotation makes catch rotate to suitable rotary angle position, adjusts empty The inlet of gas, makes air and combustion gas proper proportion in blender.

Further arrange：Described combustion head is porous ceramicss combustion head or metallic fiber combustion head.

It is arranged such, the surface of metallic fiber combustion head and porous ceramicss combustion head is respectively provided with substantial amounts of micropore, increases Combustion propagation speed is added.

In sum, this utility model has the advantages that：The low NO reduces coefficient of excess air, makes Combustion gas obtains stable burning, flue gas loss is little, combustion gas is not tempered, over-emitting black exhaust, burn abundant, de- fire, flame rigidity be not strong, hot Many advantages, such as efficiency high etc., in addition, metallic fiber combustion head technology application power is from 5kW to 40,000kW, it is ensured that low nitrogen The discharge of oxygen compound, smoke evacuation containing SO2, NOx it is low, smoke evacuation completely well below national atmosphere pollutants emission standardses, reach section The purpose of energy environmental protection.

Description of the drawings

Fig. 1 is the structural representation of low NO in embodiment 3；

Fig. 2 is the mounting structure schematic diagram of air filter in low NO；

Fig. 3 is the internal structure schematic diagram of low NO；

Fig. 4 is the internal structure schematic diagram of blender in embodiment 1；

Fig. 5 is the detonation configuration figure of blender；

Fig. 6 is the structure chart of inner core in blender；

Fig. 7 is the Section A-A figure in Fig. 6；

In figure, 1, blower fan；2nd, combustion head；3rd, igniter；31st, animating electrode；32nd, ignition transformer；4th, blower motor； 5th, intake stack；6th, rotating shaft；7th, catch；8th, air mix door servomotor；9th, switch board；10th, blender；11st, air filtration Device；12nd, fuel gas inlet；13rd, combustion gas point chamber；14th, combustion air spinning disk；15th, mixed once chamber；16th, secondary mixing chamber； 17th, inner core；18th, enter air duct；19th, a swirl vanes；191st, cone；192nd, blade；20th, swirl flow impeller；21st, it is fixed Frame；211st, snap ring；212nd, fixing axle；22nd, cylinder；23rd, oblique pod apertures；24th, suction flange；25th, outlet(discharge) flange；26th, seal ring.

Specific embodiment

This utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment 1：A kind of blender, as shown in figure 5, including cylinder 22, the fuel gas inlet 12 on 22 perisporium of cylinder, Two shaft ends of cylinder 22 are set respectively by suction flange 24 and outlet(discharge) flange 25, and suction flange 24 to outlet(discharge) flange 25 is air intake Dynamic direction, has fuel gas inlet 12 along side at suction flange 24 in cylinder 22, in cylinder 22 along 25 side of outlet(discharge) flange Snap ring 211 is fixedly connected with wall, snap ring 211 is coaxial with cylinder 22,211 circumference of snap ring is provided with the fixation coaxial with cylinder 22 Axle 212,212 two ends of fixing axle are respectively fixed with swirl vanes 19 of shape identical and swirl flow impeller 20.

With reference to 4, Fig. 5, cylinder 22 is located in combustion gas point chamber 13 and is provided with inner core 17, and the inside of inner core 17 is provided with combustion air eddy flow Piece 14, the blade 192 of combustion air spinning disk 14 in the shape of a spiral, and are left-handed, 17 1 shaft end of inner core according to the air intake direction of air-flow Be provided with and enter air duct 18 in tapered, enter air duct 18 and the rear side of combustion air spinning disk 14 is located at along air intake direction, enter and set on air duct 18 There are oblique pod apertures 23, the outermost for entering air duct 18 is inconsistent with 22 inwall of cylinder, the outer wall of inner core 17 and the inwall of cylinder 22 Interval setting, inner core 17 are dorsad entered the end of 18 side of air duct and are provided with seal ring 26, enter the outer wall of air duct 18, inner core 17 it is outer Wall, seal ring 26 form a chamber with the inwall of cylinder 22, and the chamber is that combustion gas divides chamber 13, fuel gas inlet 12 to be communicated to combustion gas point In chamber 13.

As shown in figure 5, in cylinder 22 along air intake direction be located on rear side of inner core 17 for a swirl vanes 19 and secondary rotation Stream impeller 20, has bolt, is bolted to the inwall of cylinder 22, on snap ring 211 in fixing axle 212 on snap ring 211 Swirl vanes 19 are located at the front side in air intake direction, are close to into air duct 18 and form mixed once chamber 15, swirl flow impeller 20 form in secondary mixing chamber 16 near 25 side of outlet(discharge) flange, a swirl vanes 19 and swirl flow impeller 20.

Swirl vanes 19 include and the cone 191 of 22 concentric co-axial of cylinder, uniform to some on 191 circumference of cone Blade 192, every blade 192 is in angularly disposed, and 192 inclined direction of blade is dextrorotation along air intake direction, is revolved with combustion air Flow 14 it is in opposite direction, enter the cone 191 of the air-out direction just to a swirl vanes 19 of the oblique pod apertures 23 of air duct 18 Conical surface position at, swirl flow impeller 20 is identical with 19 structure of swirl vanes, during installation, the cone of swirl flow impeller 20 The pointed cone of body 191 passes through 211 center of circle of snap ring, pointed cone to be spaced near a swirl vanes 19 and with the cone bottom of a swirl vanes 19 Arrange.

As shown in Figure 6, Figure 7, combustion air spinning disk 14 is vertical with the inwall of inner core 17, combustion air spinning disk 14 and inner core 17 Axis forms angle（a）For 30 °～60 °, preferably 45 °, strengthen the mixing of combustion gas and air.

As shown in Figure 6, Figure 7, the axis of the oblique pod apertures 23 entered on air duct 18 forms angle with the axis for entering air duct 18 （b）For 45 °～60 °, preferably 55 °, strengthen the intake efficiency of combustion gas, make efficiency of combustion at one's best.

Embodiment 2：A kind of blender, the difference with embodiment 1 is, 192, the blade of combustion air spinning disk 14 It is dextrorotation according to the air intake direction of air-flow, a swirl vanes 19 and swirl flow blade root are left-handed according to the air intake direction of air-flow.

Embodiment 3：A kind of low NO, as depicted in figs. 1 and 2, including combustion head 2, igniter 3, blower fan 1, wind Blender 10 in 1 motor of machine, switch board 9 and embodiment 1, has PLC in switch board 9.

With reference to Fig. 3, the cylinder 22 of blender 10 is connected with blower fan 1, and blower fan 1 includes 1 impeller of 1 housing of blower fan and blower fan, wind 1 impeller outer ring of machine is tangent with the axis of cylinder 22, and 1 impeller of blower fan produces the distinguished and admirable arc inner wall along housing when rotating and takes advantage of a situation entrance Inside cylinder 22, on the outlet air flange of cylinder 22, connect combustion head 2, combustion head 2 is metallic fiber combustion head, is specifically burnt Head outer surface is provided with metal fiber felt, and metallic fiber combustion head technology application power is from 5kW to 40,000kW, it is ensured that low nitrogen oxygen The discharge of compound.

As shown in figure 1, igniter 3 includes ignition transformer 32, animating electrode 31, animating electrode 31 is arranged on outlet method On blue 25, igniting front side is contradicted with combustion head 2, and rear side is electrically connected on ignition transformer 32, and ignition transformer 32 is attached to wind On 1 housing of machine, apart from combustion head 2 farther out, it is ensured that security performance.

As shown in Fig. 21 housing of blower fan has an air inlet, air inlet is connected with intake stack 5, in intake stack 5 Radial line is provided with rotating shaft 6, and rotating shaft 6 is provided with catch 7, and the outside of intake stack 5 is provided with the air mix door of the rotation of drive shaft 6 Servomotor 8, the outer end of intake stack 5 are provided with tubular air filter 11, and air mix door servomotor 8 is by switch board 9 automatically control according to PLC instructions, control its rotation, make catch 7 rotate to suitable rotary angle position, adjusting mixer 10 Interior air and combustion gas proper proportion.

During work, switch board 9 is automatically controlled according to PLC instructions, and in control system, ignition transformer 32 is struck sparks, igniter Supply gas after 3 short time-delays, generate ignition flame, Jing after safety time, with reference to Fig. 4, blower fan 1 is by air by multiple combustion air spinning disks 14 guiding form annular eddy flow and enter mixed once chamber 15, form the air stream of rotation, while the combustion gas Jing combustions in Gas Pipe Gas entrance 12 enters combustion gas point chamber 13, and Jing combustion gas point chamber 13 is ejected in mixed once chamber 15 from oblique pod apertures 23, is sprayed Combustion gas can form the very brief and strong combustion gas stream of multiple sub-threads, sub-thread combustion gas stream script route should be impacted in an eddy flow leaf On the conical surface of wheel 19, and the air stream that blower fan 1 is sent into forms very brief strong rotary air stream through combustion air spinning disk 14, revolves Turn air stream in a ring, multiple sub-thread combustion gas streams directly impacted to the blade 192 of a swirl vanes 19, during this, Air stream is intersected with sub-thread combustion gas stream and is mixed to form mixed once gas, and the air in mixed once gas is reached with combustion gas completely Theory of Combustion air-fuel ratio, is guided to secondary mixing chamber 16 by the blade 192 of a swirl vanes 19.

Through a swirl vanes 19, mixed once gas impacts to 211 end face of snap ring, so as to enter mixed once gas The secondary mixing of row, forms secondary mixed gas, and the flowing thrust provided by Jing blower fans 1 enters blender 10, Jing above-mentioned mixing After device 10 mixes, combustion gas is complete with air elementary mixing, and shape on each aspect of 2 felt face of metallic fiber combustion head on rear side of flow direction Uniformly flow field, after combustion gas is through the metallic fiber of combustion head 2, forms in metallic fiber outer surface and burns.The fully combustion of premix Burning accelerates can flame velocity, form the short and swirl flame of indigo plant, and the flame for generating is in cylindrical burner head Portion is radially.

Embodiment 4：A kind of low NO, the difference with embodiment 3 are that metallic fiber combustion head 2 can be replaced Be changed to porous ceramicss combustion head, the periphery of porous ceramicss combustion head is high temperature honeycomb ceramic, porosity 70%～ 85%, preferably 83%, this porous ceramicss burning head surface has substantial amounts of micropore, considerably increases combustion propagation speed.

Embodiment 5：A kind of boiler, including embodiment 3 or embodiment 4.During work, switch board 9 is controlled automatically according to PLC instructions System, air mix door servomotor 8 drive baffle plate rotation, tune up intake, the rotation of 1 motor of blower fan, the rotation air-supply of 1 impeller of blower fan Into blender 10, boiler lifting is completed；Then carry out ignition.

The above embodiments are only which is not to restriction of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification for not having creative contribution after this specification is read as needed to the present embodiment, but As long as all being protected by Patent Law in right of the present utility model.

Claims

1. a kind of low NO, including blender, blender are included axially through the cylinder (22) for air inlet, cylinder (22) Fuel gas inlet (12) is provided with positioned at air inlet front end, it is characterised in that：Inner core (17) is provided with air inlet front end in the cylinder (22), The inwall of inner core (17) is provided with combustion air spinning disk (14), and inner core (17) is provided with into air duct near the end on rear side of air inlet (18), enter air duct (18) and the rear side of combustion air spinning disk (14) is located at along air intake direction, enter air duct (18), inner core (17) and cylinder (22) inner wall sealing connects to form combustion gas point chamber (13), enters air duct (18) and is provided with oblique pod apertures (23)；The cylinder (22) The interior place on rear side of inner core (17) air intake is provided with a swirl vanes (19), and a swirl vanes (19) is formed with air duct (18) is entered Mixed once chamber (15)；Interior combustion air spinning disk (14) it is distinguished and admirable distinguished and admirable in mixed once chamber with oblique pod apertures (23) (15) intersect to be mixed to form in identical mixed once gas, and mixed once gas are flowed to interior combustion air spinning disk (14) Flow to a swirl vanes (19).

2. low NO according to claim 1, it is characterised in that：One is located at along air intake direction in the cylinder (22) Be provided with swirl flow impeller (20) on rear side of secondary swirl vanes (19), swirl flow impeller (20) and swirl vanes (19) it Between form secondary mixing chamber (16), be provided with cylinder (22) and fix a swirl vanes (19) and swirl flow impeller (20) And stop the fixed mount (21) of mixed once gas flow.

3. low NO according to claim 2, it is characterised in that：The fixed mount (21) is including being fixed to cylinder (22) snap ring (211) and snap ring (211) two ends on inwall fixes a swirl vanes (19) and swirl flow impeller (20) Fixing axle (212), fixing axle (212) and snap ring (211) are coaxially disposed with cylinder (22).

4. low NO according to claim 3, it is characterised in that：Swirl vanes (19) and swirl flow Impeller (20) includes the cone (191) coaxial with cylinder (22), the uniform blade (192) to cone (191) excircle, blade (192) on the distinguished and admirable path of mixed once gas, the blade (192) of a swirl vanes (19) is inclined to set, and helps Combustion wind spinning disk (14) is helically arranged, contrary according to air intake direction impeller and blade (192) hand of spiral of air-flow.

5. low NO according to claim 4, it is characterised in that：The snap ring (211) is positioned at falling within mixed once On the distinguished and admirable path of gas.

6. low NO according to claim 5, it is characterised in that：The cone of the swirl flow impeller (20) (191) pointed cone passes through snap ring (211) center of circle, cone of the pointed cone near a swirl vanes (19) and with a swirl vanes (19) Bottom interval setting.

7. low NO according to claim 6, it is characterised in that：The combustion air spinning disk (14) and inner core (17) Inwall it is vertical, it is 30 °～60 ° that combustion air spinning disk (14) forms angle (a) with inner core (17) axis.

8. low NO according to claim 1, it is characterised in that：It is described enter air duct (18) on oblique pod apertures (23) it is 45 °～60 ° that axis forms angle (b) with the axis for entering air duct (18).

9. low NO according to claim 1, it is characterised in that：Also include combustion head (2), igniter (3), wind Machine (1), blower fan (1) motor, the switch board with PLC (9), are connected with intake stack (5), enter at the air intake of blower fan (1) The air that the radial line of wind pipeline (5) is provided with rotating shaft (6), the catch (7) in rotating shaft (6) and drive shaft (6) are rotated is mixed Door servomotor (8) is closed, air mix door servomotor (8) connects PLC, and the outer end of intake stack (5) is provided with Tubular air filter (11).

10. low NO according to claim 9, it is characterised in that：Described combustion head (2) burns for porous ceramicss Head or metallic fiber combustion head.