CN101975398B - Anti-backfire gas combustor - Google Patents

Anti-backfire gas combustor Download PDF

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Publication number
CN101975398B
CN101975398B CN201010553196A CN201010553196A CN101975398B CN 101975398 B CN101975398 B CN 101975398B CN 201010553196 A CN201010553196 A CN 201010553196A CN 201010553196 A CN201010553196 A CN 201010553196A CN 101975398 B CN101975398 B CN 101975398B
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burner
liner
plate
shell
combustion
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CN101975398A (en
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游述怀
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游述怀
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Abstract

The invention relates to an anti-backfire gas combustor, in particular to a combustor comprising a combustion chamber and an adjustable nozzle assembly. The combustion chamber comprises a high-temperature combustion head, an outer shell, an outer shell end plate, a flame tube and a flame tube end plate, wherein the high-temperature combustion head, the outer shell and the outer shell end plate are arranged outsides, the flame tube and the flame tube end plate are arranged insides, the adjustable nozzle assembly comprises a nozzle, a fire-retardant mesh, a gas inlet and a rear end cover and is arranged in the middle of the flame tube end plate, the nozzle of the adjustable nozzle assembly penetrates into the flame tube, the rear end cover of the adjustable nozzle assembly is fastened with the outer shell end plate through bolts, the high-temperature combustion head, the outer shell and the outer shell end plate are connected into a whole through bolts to form an interlayer hollow cavity together with the flame tube in the combustion chamber and the adjustable nozzle assembly, the flame tube is uniformly provided with radial hybrid air distribution holes and tangential air inlet grooves, the flame tube end plate is uniformly provided with axial air inlets, and combustion air inlets arranged on the outer shell are communicated with the interlayer hollow cavity and the air distribution holes or the air inlet grooves. The invention has high safety performance and long service life and is more energy-saving and environment-friendly.

Description

The anti-backfire gas burner
Technical field
The present invention relates to thermal technology's combustion apparatus, refer in particular to a kind of anti-backfire gas burner.
Background technology
Burner is to be used for heating, material hot treatment, the baking in all kinds of stoves of commercial production, the boiler, the critical component of drying equipment, and the quality of its performance is directly connected to the safety of equipment, the stability of burning, and the height of energy consumption, and the discharging of carbon etc.Press the difference of firing equipment, burner in the market is divided into high combustion rate burner, inferior high combustion rate burner, flat flame burner etc., the difference of pressing gaseous-pressure; The burner design also has nothing in common with each other; But generally all there is service life short, shortcoming such as security performance is relatively poor, and it is insufficient to burn.
Summary of the invention
The objective of the invention is to improve and innovate, a kind of rational in infrastructure, long service life is provided, anti-backfire gas burner more fully burns to the shortcoming that exists in the background technology and problem.
The present invention constructs a kind of burner that comprises combustion chamber and scalable nozzle component, wherein:
The combustion chamber comprises outside high-temp combustion head, shell, end plate of outer cover and is arranged on inner burner inner liner and burner inner liner end plate; The scalable nozzle component comprises shower nozzle, back-fire relief net, fuel gas inlet and rear end cap; Wherein:
The scalable nozzle component is arranged on burner inner liner end plate middle part, and its shower nozzle stretches in the burner inner liner, and end cap is tightened to one through bolt and end plate of outer cover thereafter;
Described high-temp combustion head, shell and end plate of outer cover are connected in aggregates through bolt, and are provided with the interlayer cavity between the burner inner liner of inside, combustion chamber and the scalable nozzle component;
Have uniformly on the described burner inner liner and radially mix wind distributing hole and tangential air intake duct, have the air inlet through hollow shaft hole on the burner inner liner end plate uniformly, combustion air inlet that is provided with on the shell and interlayer cavity and above-mentioned each wind hole or wind groove connect.
Described back-fire relief net is arranged on the middle part of scalable nozzle component, is made up of stainless (steel) wire, is made as the combustion gas distributor chamber between its back-fire relief net and the shower nozzle, is made as the back-fire relief chamber between back-fire relief net and the fuel gas inlet.
Advantage of the present invention and beneficial effect:
The present invention is as a kind of natural gas (being suitable for liquefied petroleum gas equally) burner; It has at first proposed to carry spark arrester, belongs to anti-backfire type burner, and security performance improves greatly; Increase self refrigerating function simultaneously; Improved service life, be applicable to the stove that heating-up temperature is higher, its mixed gas more fully, make more energy-conservation, the more environmental protection of burning.Concrete manifestation is in the following areas:
1, sprinkler design becomes dismountable cone-like structure; The combustion gas distributor chamber is pressed the gas flow principle design; The shower nozzle hole is divided into three layers of mesopores, interior circular hole, outer circular hole, presses the size in the pressure design hole of gas, combustion gas distribute more science, rationally, burning more fully, more energy-conservation, more environmental protection.
2, stainless steel back-fire relief net and nozzle component fuse, and combustion gas is introduced into the back-fire relief net and gets into the combustion gas distributor chamber again, sprays at a high speed from shower nozzle; Effectively prevented the tempering of combustion gas; Can in the shortest time, play explosion-proof, improved increases spark arrester in the past on pipeline, and distance is longer; The shortcoming of poor stability has improved security, stability greatly.
3, combustion air ejection divide axially, radially, multiple mode such as tangential, guaranteed the uniformity of mixing, make burning more fully, more energy-conservation, belong to half pre-mixed configuration.
4, the design of the combustion head of heat resisting casting makes the burner life-span longer; Cooling air flows out from the whole circle aperture of combustion head simultaneously; Increased refrigerating function, further increased the life-span of burner, cooling air get into burner hearth and not clean-burning combustion gas further burning make fuel combustion more fully, more energy-conservation; Reduced the discharging of nitrogen oxide, more environmental protection.
5, the scientific and reasonable connection of bolt is all adopted in the connection of combustion head, shell, end plate, burner inner liner, nozzle component, and simple in structure, detachability is strong, is convenient to safeguard.
6, set up an office fire hole, flame-observing hole of shell adopts artificial or igniting automatically, and be easy and simple to handle, easily is automated.
7, the shell end cap is established flame and is detected hole or flame-observing hole, can realize automatic flame detection or the artificial fire of seeing, and security performance is stronger.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Fig. 1 left view.
The specific embodiment
Can know by accompanying drawing 1,2, the present invention includes combustion chamber A and scalable nozzle component B, wherein:
Combustion chamber A comprises outside high-temp combustion head 1, shell 4, end plate of outer cover 8 and is arranged on inner burner inner liner and burner inner liner end plate 13; Scalable nozzle component B comprises shower nozzle 12, back-fire relief net 11, fuel gas inlet 10 and rear end cap 9; Wherein:
Scalable nozzle component B is arranged on burner inner liner end plate 13 middle parts, and its shower nozzle 12 stretches in the burner inner liner, and end cap 9 is tightened to one through bolt and end plate of outer cover 8 thereafter;
Described high-temp combustion head 1, shell 4 and end plate of outer cover 8 are connected in aggregates through bolt, and are provided with the interlayer cavity C between inner burner inner liner of combustion chamber A and the scalable nozzle component B;
Have uniformly on the described burner inner liner and radially mix wind distributing hole 15 and tangential air intake duct 16, have air inlet through hollow shaft hole 19 on the burner inner liner end plate 13 uniformly, the combustion air inlet 14 that is provided with on the shell 4 and interlayer cavity C and above-mentioned each wind hole or the perforation of wind groove;
Described back-fire relief net 11 is arranged on the middle part of scalable nozzle component B, is made up of stainless (steel) wire, is made as combustion gas distributor chamber 17 between its back-fire relief net 11 and the shower nozzle 12, is made as back-fire relief chamber 18 between back-fire relief net 11 and the fuel gas inlet 10.
High-temp combustion head 1 of the present invention is a heat-resisting cast iron, and its stove hall periphery, dead ahead is provided with the aperture 2 of a circle and the perforation of interlayer cavity C.Described burner inner liner comprises first burner inner liner 5 that is arranged on the burner hearth end; Be slightly less than second burner inner liner 6 of first burner inner liner 5 with diameter; Wherein first burner inner liner, 5 one sides be provided with one stretch out shell 4 fire hole 3; One end of second burner inner liner 6 is connected with 5 spot welding of first burner inner liner, and the other end and burner inner liner end plate 13 are linked to be an integral body.Described shower nozzle 12 is dismountable cone-shaped, with the shower nozzle connector for being threaded, have mesopore, interior circular hole and outer circular hole on the shower nozzle 12.The taper chamber of described combustion gas distributor chamber 17 for slightly dwindling.Describedly radially mix the hole that wind distributing hole 15 is designed to vary in size by air mass flow.Described end plate of outer cover 8 is provided with flame and detects hole 7.
Structural principle of the present invention:
Columned combustion chamber is made up of the shell of high-temp combustion head, first and second joint burner inner liner, burner.The high-temp combustion head is made up of heat-resisting cast iron; Belong to the high-temperature component that directly contacts with burner hearth; The dead ahead of combustion head is designed with a circle aperture, and the cooling wind energy gets into burner hearth from aperture, with the further mixed combustion of natural gas; Reduce the shell that imperfect combustion has cooled off burner simultaneously, the service life of having improved burner.The second joint burner inner liner is more smaller than first segment burner inner liner diameter; Use spot-welded on; Form an integral body with the burner inner liner end plate, combustion air can get into the combustion chamber from the gap of the axial hole on the end plate, first segment burner inner liner, the mixing wind distributing hole tangential air intake duct of two joint burner inner liners, mixes uniformly with natural gas; The design that mixes wind distributing hole becomes the variant aperture of size by the air mass flow principle design, has guaranteed the uniformity of air distribution.
The scalable nozzle component is made up of the cone nozzle that is threaded, combustion gas distributor chamber, stainless steel back-fire relief net, dismountable Gas Pipe rear end cap; The shower nozzle that is threaded provides the convenience of changing; Press the size of the size design fire jetting hole of gaseous-pressure simultaneously; The combustion gas distributor chamber is pressed the flow design of gas, and taper slightly dwindles, and in shower nozzle, carries out assignment of traffic again.The back-fire relief net of being made up of four layers of stainless (steel) wire in the nozzle component is the important composition parts in this patent, can effectively prevent the tempering of flame when gaseous-pressure reduces, the explosion-proof performance that having property is good.Flame retardant bed adopts the stainless (steel) wire made, and corrosion-resistant easy is in cleaning.
The course of work of the present invention:
Combustion air gets into the interlayer of burner from air inlet, through the air inlet through hollow shaft mouth, and mixing air distribution outlet radially, the tangential air intake duct gets into the combustion chamber, mixes uniformly with natural gas from the ejection of scalable nozzle component, burns fully.Natural gas gets into the combustion gas distributor chamber through the back-fire relief net again from fuel gas inlet, and the spray orifice high speed ejection from shower nozzle mixes with combustion air uniformly.
Embodiment of the present invention only is the description that preferred implementation of the present invention is carried out; Be not that design of the present invention and scope are limited; Under the prerequisite that does not break away from design philosophy of the present invention, engineers and technicians make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention; The technology contents that the present invention asks for protection all is documented in claims.

Claims (7)

1. an anti-backfire gas burner comprises combustion chamber (A) and scalable nozzle component (B), it is characterized in that:
Combustion chamber (A) comprises outside high-temp combustion head (1), shell (4), end plate of outer cover (8) and is arranged on inner burner inner liner and burner inner liner end plate (13); Scalable nozzle component (B) comprises shower nozzle (12), back-fire relief net (11), fuel gas inlet (10) and rear end cap (9); Wherein:
Scalable nozzle component (B) is arranged on burner inner liner end plate (13) middle part, and its shower nozzle (12) stretches in the burner inner liner, and end cap (9) is tightened to one through bolt and end plate of outer cover (8) thereafter;
Described high-temp combustion head (1), shell (4) and end plate of outer cover (8) are connected in aggregates through bolt, and are provided with interlayer cavity (C) between burner inner liner of combustion chamber (A) inside and the scalable nozzle component (B);
Have uniformly on the described burner inner liner and radially mix wind distributing hole (15) and tangential air intake duct (16); Have air inlet through hollow shaft hole (19) on the burner inner liner end plate (13) uniformly, shell (4) is gone up the combustion air inlet (14) and interlayer cavity (C) and above-mentioned each wind hole or the perforation of wind groove that is provided with;
Described back-fire relief net (11) is arranged on the middle part of scalable nozzle component (B); Form by stainless (steel) wire; Be made as combustion gas distributor chamber (17) between its back-fire relief net (11) and the shower nozzle (12), be made as back-fire relief chamber (18) between back-fire relief net (11) and the fuel gas inlet (10).
2. anti-backfire gas burner according to claim 1 is characterized in that described high-temp combustion head (1) is a heat-resisting cast iron, and its stove hall periphery, dead ahead is provided with the aperture (2) of a circle and interlayer cavity (C) perforation.
3. anti-backfire gas burner according to claim 1; It is characterized in that described burner inner liner comprises first burner inner liner (5) that is arranged on the burner hearth end; Be slightly less than second burner inner liner (6) of first burner inner liner (5) with diameter; Wherein first burner inner liner (5) one sides are provided with one and stretch out the fire hole (3) of shell (4), and an end of second burner inner liner (6) is connected with first burner inner liner (5) spot welding, and the other end and burner inner liner end plate (13) are linked to be an integral body.
4. anti-backfire gas burner according to claim 1 is characterized in that described shower nozzle (12) for dismountable cone-shaped, with the shower nozzle connector for being threaded, have mesopore on the shower nozzle (12), interior circular hole reaches outer circular hole.
5. anti-backfire gas burner according to claim 1 is characterized in that the taper chamber of described combustion gas distributor chamber (17) for slightly dwindling.
6. anti-backfire gas burner according to claim 1 is characterized in that the described hole that wind distributing hole (15) is designed to vary in size by air mass flow of radially mixing.
7. anti-backfire gas burner according to claim 1 is characterized in that described end plate of outer cover (8) is provided with flame and detects hole (7).
CN201010553196A 2010-11-22 2010-11-22 Anti-backfire gas combustor Active CN101975398B (en)

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Application Number Priority Date Filing Date Title
CN201010553196A CN101975398B (en) 2010-11-22 2010-11-22 Anti-backfire gas combustor

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Application Number Priority Date Filing Date Title
CN201010553196A CN101975398B (en) 2010-11-22 2010-11-22 Anti-backfire gas combustor

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CN101975398B true CN101975398B (en) 2012-10-10

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269408A (en) * 2011-05-18 2011-12-07 威海正通节能科技有限公司 High-efficiency and energy-saving combustor assembly
CN104500278A (en) * 2014-12-20 2015-04-08 玉柴联合动力股份有限公司 Explosion-proof mixer for natural gas engine
CN106090887A (en) * 2016-06-16 2016-11-09 安徽新生力生物科技有限公司 A kind of biomass gasification combustion machine burner
CN106090905B (en) * 2016-06-20 2018-04-10 北京达特集成技术有限责任公司 A kind of combustion furnace head and combustion furnace
CN110671695B (en) * 2019-10-28 2021-03-23 龙岩烟草工业有限责任公司 Combustion system and boiler
CN111664454B (en) * 2020-07-22 2021-12-10 宁波方太厨具有限公司 Stove burner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2384112Y (en) * 1999-08-13 2000-06-21 大庆石油管理局天然气公司 Pre-mix degree adjustable gas burner
JP2003207107A (en) * 2002-01-18 2003-07-25 Kb Entec Co Ltd Blown gas combustion burner
CN201866769U (en) * 2010-11-22 2011-06-15 游述怀 Anti-backfire gas burner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2384112Y (en) * 1999-08-13 2000-06-21 大庆石油管理局天然气公司 Pre-mix degree adjustable gas burner
JP2003207107A (en) * 2002-01-18 2003-07-25 Kb Entec Co Ltd Blown gas combustion burner
CN201866769U (en) * 2010-11-22 2011-06-15 游述怀 Anti-backfire gas burner

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Denomination of invention: Anti backfire gas burner

Effective date of registration: 20220329

Granted publication date: 20121010

Pledgee: Agricultural Bank of China Limited Yueyang dongmaoling sub branch

Pledgor: You Shuhuai

Registration number: Y2022980003302

PE01 Entry into force of the registration of the contract for pledge of patent right