CN2542934Y - Straight-tube premix gan burner - Google Patents
Straight-tube premix gan burner Download PDFInfo
- Publication number
- CN2542934Y CN2542934Y CN 02220905 CN02220905U CN2542934Y CN 2542934 Y CN2542934 Y CN 2542934Y CN 02220905 CN02220905 CN 02220905 CN 02220905 U CN02220905 U CN 02220905U CN 2542934 Y CN2542934 Y CN 2542934Y
- Authority
- CN
- China
- Prior art keywords
- flame
- straight tube
- housing
- gas
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a straight pipe premixing gas burner, which comprises a flame air inlet pipe (1), a gas nozzle (2), a divergent cone (3), a primary air inlet (4), a mixing straight pipe (5), a flame stabilizer (6), a premixing gas hydro cyclone (7), a flaming port (8) or a premixing gas jet hole (9), a straight pipe premixing flame cylinder formed by a flaming port (10), a muffler (14), a regulation plate (15), an duct (16), a primary air rectifier (17), a secondary air hydro cyclone (18), a fireproof brick (19), a housing (20), an igniter (21), a flame monitor (22), a electromagnetic valve venting valve component (23), and further comprises an additional diffuse nozzle air inlet (11), a central diffuse nozzle (12) or a ring-shaped diffuse nozzle (13). The utility model is characterized by great gas atmosphere, non-surging ignition, low load, tempering resistance, large turndown ratio, good flame combustion stability, large force, high efficiency, good reliability and security of the burner, etc.
Description
Technical field
What the utility model was related is a kind of straight tube pre-mixing gas combustion burner.
Background technology
At present, employed injection burner on the negative pressure industrial furnace, because its combustion gas is regulated than little, thus exist the igniting surge, flame is long and do not have rigidity, easy tempering when underrun, easily burn defectives such as fire door or boiler tube, causes body of heater or burner impaired serious.The patent No. is that 95239976.8 injection type is regulated fuel burner nozzle along separate routes, though improve or overcome above-mentioned defective, because a wind air inflow is little, causes pre-mixing gas combustion burning place anaerobic condition, and it is abundant not enough burn, and efficient and stability is ideal not enough.
The utility model content
The novel purpose of this reality is to provide a kind of straight tube pre-mixing gas combustion burner, combustion gas adjusting ratio and efficiency of combustion is improved, to overcome above-mentioned defective.
Technical solution of the present utility model comprises and places the refractory brick in the housing outlet and place straight tube premixed flame tube in the housing, also comprise a wind rectifier that is loaded on the housing end plug, place the secondary wind cyclone in burner inner liner outer shroud and the housing, place the inlet flap that lower housing portion communicates with housing and be loaded on igniter, flame monitor and magnetic valve pressure maintaining valve assembly on the positive end face of housing.Described straight tube premixed flame tube is formed single part premix diffuser by flame air inlet pipe, gas nozzle, divergent cone and a wind inlet, be connected in blending straight tube head section, and blending straight tube rear be equipped with the flame stabilization cover and divergent nozzle that premix cyclonic current device and fire jetting hole form is housed on the heap shape section of flame stabilization cover or by flame stabilization cover and heap shape section thereof at the flame stabilization cover on have the divergent nozzle that crossing premix gas jet orifice and fire jetting hole are formed.The use that can link to each other with gas inlet pipe separately of each straight tube premixed flame tube also can be connected with Gas Pipe 1-8 burner inner liner is in parallel, to control the work number of burner inner liner.Described inlet flap is connected in by muffler to be regulated aerofoil and is connected in the air channel that communicates with housing again and is formed.
According to industrial furnace load needs, additional center divergent nozzle or belt divergent nozzle also can be set in housing be connected with its divergent nozzle air inlet pipe.
The utility model compared with prior art because good mixing effect, has overcome the defective that prior art exists basically, and it is better to have a combustion atmosphere, and the flame combustion characteristic is good, and combustor reliability and security are improved.
Description of drawings
Fig. 1 is a straight tube pre-mixing gas combustion burner structural representation.
Designation among the figure: 1, burner inner liner air inlet pipe, 2, gas nozzle, 3, divergent cone, 4, wind inlet, 5, the blending straight tube, 6, the flame stabilization cover, 7, premix cyclonic current device, 8, fire jetting hole, 9, premix gas jet orifice, 10, fire jetting hole, 11, divergent nozzle air inlet pipe, 12, the center divergent nozzle, 13, divergent nozzle goes in ring, 14, muffler, 15, regulate aerofoil, 16, the air channel, 17, wind rectifiers, 18, secondary wind cyclone, 19, refractory brick, 20, housing, 21, igniter, 22, flame monitor, 23, magnetic valve pressure maintaining valve assembly.
The specific embodiment
As shown in Figure 1, concrete structure of the present utility model is to place straight tube premixed flame tube in the housing 20 by flame air inlet pipe 1, gas nozzle 2, divergent cone 3 and a wind inlet 4 are formed single part premix diffuser and are connected in 5 sections of blending straight tube, wherein also can open the wind air inlet one time along flame direction around the gas nozzle, also can open oblique aperture at the jet expansion edge, blending straight tube 5 rears be equipped with flame stabilization cover 6 and diffusion flame nozzle that premix cyclonic current device 7 and fire jetting hole 8 formed is housed on the heap shape section of flame stabilization cover or by flame stabilization cover 6 and heap shape section thereof at the flame stabilization cover on have the flame-thrower nozzle that crossing premix gas jet orifice 9 and fire jetting hole 10 are formed; Be loaded on a wind rectifier 17 on the housing end plug, place the secondary wind cyclone 18 in straight tube premixed flame tube outer shroud and the housing, place the inlet flap of lower housing portion to be connected in muffler 14 through regulating aerofoil 15 by the air channel 16 that communicates with housing.And be loaded on igniter 21 on the positive end face of housing, flame monitor 22 and the magnetic valve pressure maintaining valve assembly 23 that links to each other with flame monitor.
Each straight tube premixed flame tube can link to each other with the combustion gas inlet pipe separately, also the parallel connection of 1-8 straight tube premixed flame tube can be linked to each other with gas inlet pipe.
The course of work of the present utility model is: 1, the course of work of straight tube premixed flame tube: combustion gas enters gas nozzle 2 by burner inner liner air inlet pipe 1, the air pre-mixing that combustion gas and wind inlet 4 enter in divergent cone 3, enter flame stabilization cover 6 by blending straight tube 5, make the flame stabilization burning.Premix cyclonic current device 7 and the premix gas jet orifice 9 that intersects have then enlarged the blending of half premix gas and auxiliary air, increase the combustion zone scope.2, the blowing system course of work: air enters burner shell 20 by muffler 14 through regulating aerofoil 15 and air channel 16, regulate total air distribution amount by regulating aerofoil 15, portion of air through a wind rectifier 17 in straight tube premixed flame tube premix diffuser and combustion gas blending, another part air produces eddy flow wind through secondary wind cyclone 18, enter fire trough, the tissue burning.Burner outlet is equipped with refractory brick 19, the retention flame and overheavy firing effect, and 20 pairs of burner inner liners of housing of burner inner liner outside play protection and support effect.
Needs according to the industrial furnace load also can be provided with additional center divergent nozzle 12 or belt divergent nozzle 13 and be connected with its divergent nozzle air inlet pipe 11 in housing 20, to improve exerting oneself of industrial furnace.
As from the foregoing, the utility model carries out premix, burning with the combustion gas demultiplexing, the combustion gas of burner inner liner can be at little load down-firing along separate routes for each, by the ignite premix gas of other burner inner liner of certain burner inner liner, combustion gas is regulated than improving greatly, thereby the phenomenons such as surge, tempering of lighting a fire can not occur, thereby flame rigidity is strong, efficiency of combustion is high; When underload is worked, can reduce the work number of burner inner liner, this moment, each burner inner liner still can be in the high load capacity duty.Again since along separate routes premix make in the straight tube premixed device combustion gas reasonable with the air blending, make the interior velocity field of fire trough, concentration field, temperature field all even, the flame stabilization cover makes flame holding good.Therefore, it is better that burner of the present utility model has combustion atmosphere, and the flame combustion characteristic is good, and combustor reliability and security are improved.
The scope of application of the present utility model is gaseous-pressure 0.05-0.60Mpa, gas flow 30-300m
3/ h can consider the gas flow 10-50m of each burner inner liner according to the burner hearth size to the shape of burner and exert oneself and carry out specific design, adjustment during design
3/ h.Example: burner is equipped with 3 burner inner liners, gas nozzle flow 40m
3/ h, burner inner liner length 600mm, the straight spout of flame stabilization cover equate substantially with the area of the jet orifice that intersects, and coefficient of excess air is in α=1.05～1.25, and combustion gas is regulated than being 1: 10, NO
xDischarge capacity＜70ppm meets national environmental standard, and efficiency of combustion reaches more than 99%.It is that the industrial furnace of fuel provides comparatively desirable burner with fuel gas that the utility model can be industries such as oil field, chemical industry, metallurgy, building materials.
Claims (4)
1, a kind of straight tube pre-mixing gas combustion burner, comprise and place the refractory brick (19) in housing (20) outlet and place the interior straight tube premixed flame tube of housing (20), it is characterized in that, also comprise a wind rectifier (17) that is loaded on the housing end plug, place the secondary wind cyclone (18) in burner inner liner outer shroud and the housing, place the inlet flap that lower housing portion and housing communicate and be loaded on the igniter (21) on the positive end face of housing, the magnetic valve pressure maintaining valve assembly (23) that flame monitor (22) links to each other with flame monitor; Described straight tube premixed flame tube by flame air inlet pipe (1), gas nozzle (2), divergent cone (3), forms single partly-premixed diffuser with a wind inlet (4) and is connected in blending straight tube (5) head section, and blending straight tube (5) rear is equipped with flame stabilization cover (6) and have the divergent nozzle that crossing premix gas jet orifice (9) and fumarole (10) are formed at the divergent nozzle that premix cyclonic current device (7) and fire jetting hole (8) composition is housed on the heap shape section of flame stabilization cover or on by flame stabilization cover (6) and the heap shape section at the flame stabilization cover thereof.
According to the described straight tube pre-mixing gas combustion burner of claim 1, it is characterized in that 2, inlet flap is connected in muffler (14) by the air channel that communicates with housing (16) through regulating aerofoil (15).
3, according to claim 1 or 2 described straight tube pre-mixing gas combustion burners, it is characterized in that, additional center divergent nozzle (12) or belt divergent nozzle (13) can also be set in housing be connected with its divergent nozzle air inlet pipe (11).
According to the described straight tube pre-mixing gas combustion burner of claim 1, it is characterized in that 4, each straight tube premixed flame tube can link to each other with gas inlet pipe separately, also the parallel connection of 1～8 straight tube premixed flame tube can be linked to each other with gas inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220905 CN2542934Y (en) | 2002-05-31 | 2002-05-31 | Straight-tube premix gan burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220905 CN2542934Y (en) | 2002-05-31 | 2002-05-31 | Straight-tube premix gan burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2542934Y true CN2542934Y (en) | 2003-04-02 |
Family
ID=33699108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02220905 Expired - Fee Related CN2542934Y (en) | 2002-05-31 | 2002-05-31 | Straight-tube premix gan burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2542934Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526720C (en) * | 2007-08-20 | 2009-08-12 | 上海诺特飞博燃烧设备有限公司 | Method and device for assuring industrial burner stable burning |
-
2002
- 2002-05-31 CN CN 02220905 patent/CN2542934Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526720C (en) * | 2007-08-20 | 2009-08-12 | 上海诺特飞博燃烧设备有限公司 | Method and device for assuring industrial burner stable burning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |