CN109556112A - A kind of concentric alternately wake gas burner based on stoichiometric number proportion - Google Patents
A kind of concentric alternately wake gas burner based on stoichiometric number proportion Download PDFInfo
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- CN109556112A CN109556112A CN201811502865.2A CN201811502865A CN109556112A CN 109556112 A CN109556112 A CN 109556112A CN 201811502865 A CN201811502865 A CN 201811502865A CN 109556112 A CN109556112 A CN 109556112A
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- combustion
- gas
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- wake
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of concentric alternately wake gas burners matched based on stoichiometric number, burner is constructed using cylindrical combustion cup and cylindrical type burner core, burner includes 3 grades of concentric loop combustion chambers, it is passed through the volume flow of gaseous combustible object and combustion adjuvant oxygen in combustion chamber by adjusting, it is made to meet combustion chemistry reaction stoichiometric number proportion.Present invention ensure that combustible gas being capable of completely burned.The present invention is proposed using alternately wake to ensure to burn sufficiently and keep flame stabilization.Level-one, the oxygen of three-level combustion chamber are flowed with the wake that replaces of secondary firing chamber combustible gas, are increased effectively the contact area of combustible gas Yu combustion-supporting gas, are facilitated the intracavitary combustible gas full combustion of secondary firing.Meanwhile the alternating wake of flame two sides can protective gas flame reduce outside environmental elements interference, it is ensured that it is gas flame flameholding, reproducible.
Description
Technical field
The invention belongs to fuel gas fire detections and Prevention Technique field, and in particular to one kind is reacted according to combustion chemistry
Stoichiometric number adjusts combustible gas and oxidizer volume ratio carries out the device of gas fire test.Burner is by ensuring that different type can
Combustion gas body abundant, completely burned according to combustion chemistry stoichiometry, to obtain repeated high and stable combustion product gas
Volumetric combustion flame.
Background technique
In fuel gas fire detection and fire-fighting technique research, gas burner is very widely used.Gas burning
Stability by gas flow rate, nozzle form, surrounding flow interference, oxidizer (oxygen) content and ambient pressure etc. it is a variety of it is extraneous because
Element influences, and to stability, the acquisition of high, reproducible gas burning behavior brings larger difficulty.Fuel gas rough burning
When, combustion heat release amount, oxygen consumption etc. will affect there is also significant difference based on heat, characteristic gas (such as CO, CH4)
The response of the principles fire gases detection such as concentration and smoke particle.Meanwhile by environmental influence, rough burning burns to combustible gas
The precise measurement of product composition also adversely affects.
The present invention proposes a kind of concentric alternately wake gas burner based on combustion reaction stoichiometric number proportion, passes through
Control participates in the volume flow between the combustible gas and combustion-supporting gas of combustion chemistry reaction, and it is high, repeatable can to obtain stability
Good gas burning flame.
Summary of the invention
The problem of to improve traditional gas burner combustion flame instability, the present invention propose a kind of alternating wake formula with one heart
Gas burner is adjusted into the combustible gas of burner and helps according to stoichiometric number proportion is chemically reacted when combustible gas full combustion
Combustion gas volume flow, so that it is guaranteed that gas burning flame burning is abundant, product is stable and has high duplication.
The technical solution of the present invention is as follows:
A kind of concentric alternately wake gas burner based on stoichiometric number proportion, utilizes cylindrical combustion cup and cylinder
Type burner core constructs burner, and burner includes 3 grades of concentric loop combustion chambers, is passed through gaseous combustible in combustion chamber by adjusting
The volume flow of object and combustion adjuvant oxygen makes it meet combustion chemistry reaction stoichiometric number proportion.
The burner is made of 3 different cylinder-shaped 3 grades of combustion cups of size and 1 cylindrical type burner core, and described group
It is respectively provided with threaded hole at feature bottom, the component is sequentially connected fixation using bolt；
The burner formation is followed successively by level-one, second level, three-level concentric loop combustion chamber from inside to outside, wherein level-one, three
Be passed through oxygen in grade combustion chamber, secondary firing is intracavitary be passed through combustible gas, oxygen and combustible gas burner tip nozzle successively
Form alternately wake state；
The combustion chamber bottom setting is uniformly distributed air inlet, and wherein single-stage combustion bottom of chamber portion is successively angularly uniformly arranged
4 single-stage combustion chamber air inlets, secondary firing bottom of chamber portion and single-stage combustion chamber, which interlock 45 °, is angularly uniformly arranged 4 second levels combustions
Chamber air inlet is burnt, three-level combustion chamber is successively angularly uniformly arranged 8 three-level combustion chamber air inlets on the basis of single-stage combustion chamber；
The combustion chamber is passed through combustible gas and oxygen by the air inlet that bottom is arranged, and when use burns anti-according to combustible gas
It answers the ratio between stoichiometric number to control gas flow, makes level-one, the sum of oxygen volume flow and secondary firing chamber in three-level combustion chamber
Interior combustible gas volume flow meets completely burned stoichiometric number ratio.After combustor air inlet is opened, held using external electric spark
It is continuous to ignite, thus obtain combustible gas sufficiently, completely burned flame；
The burner using when be placed in inert atmosphere (such as nitrogen), to avoid environmental gas component to gas supply volume flow
Measure the influence of proportion.
The principle of the invention lies in: when fuel gas full combustion, combustion process follows basic chemical equation.Gas
Body combustible molecular composition is certain, burning oxygen demand also determine, i.e., combustible gas full combustion when, combustible and oxygen proportion are true
Determine and quantitative calculating can be carried out by combustion chemistry reaction equation.Such as with hydrogen (H2) and methane (CH4) for:
2H2+O2=2H2O
CH4+2O2=CO2+2H2O
When two kinds of full combustion of gas, there is fixed stoichiometric number proportion relation, respectively 2:1 in combustible gas and oxygen
And 1:2.Therefore, burner can ensure to participate in combustion gas by the quantitative volume flow for adjusting participation reaction combustible gas and oxygen
Body composition, and then guarantee to obtain the gas burning flame of burn abundant product stabilization, favorable repeatability.
The present invention has the advantages that
(1) present invention constructs three-level combustion chamber and realizes to the quantitative for participating in combustion reaction combustible gas and combustion adjuvant oxygen
System.Combustible gas and oxygen is set to meet combustion reaction stoichiometric number proportion by adjusting burner sampling volume flow, it is ensured that can
Combustion gas being capable of completely burned.
(2) present invention is proposed using alternately wake to ensure to burn sufficiently and keep flame stabilization.Level-one, three-level combustion chamber
Oxygen and secondary firing chamber combustible gas replace wake flowing, increase effectively the contact area of combustible gas Yu combustion-supporting gas, have
Help the intracavitary combustible gas full combustion of secondary firing.Meanwhile the alternating wake of flame two sides can protective gas flame reduce it is outer
Boundary's environmental factor interference, it is ensured that gas flame flameholding, reproducible.
(3) the practical composition of combustible gas combustion product can accurately be obtained using burner of the present invention.Traditional gas burner
Gas flame is usually lighted in air, due to the presence of the ingredients such as Carbon Dioxide in Air, water vapour, be will affect and is burnt to it
CO in product2、H2The accurate measurement of O equal size.Burner of the present invention using when be placed in inert atmosphere environment, can exclude
Influence of the ambient gas composition to combustion product content, it is hereby achieved that gas fuel burning product composition it is accurate as a result,
There is significant application value in fire gases detection technical research.
Detailed description of the invention
Fig. 1 is burner structure schematic diagram of the present invention, wherein Fig. 1 (a) is burner centre sectional view, and Fig. 1 (b) is combustion
Burner top view；
Fig. 2 is burner application example of the present invention and air inlet pipe space structure schematic diagram, wherein Fig. 2 (a) is combustor top
Portion's schematic diagram, Fig. 2 (b) are burner base and air inlet pipe distribution schematic diagram；
Appended drawing reference meaning in figure are as follows: 0 is burner core, and 1 is single-stage combustion cup, and 2 be secondary firing cup, and 3 fire for three-level
Beaker, a are single-stage combustion chamber, and b is secondary firing chamber, and c is three-level combustion chamber, and 4 be threaded hole, and 5 be single-stage combustion chamber air inlet,
6 be secondary firing chamber air inlet, and 7 be three-level combustion chamber air inlet.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in more detail.
Shown in Figure 1, concentric alternately wake gas burner of the present invention is specifically by burner core 0, single-stage combustion
Cup 1, secondary firing cup 2, three-level combustion cup 3 form, and utilize the fixed envelope of bolt by the concentric threaded hole 4 in bottom with upper-part
Dress.Between burner core and single-stage combustion cup and combustion cup contact surface at different levels filling sealing agent (such as refractory seals glue) into
Row sealing.Three-level combustion chamber, i.e. single-stage combustion chamber a, secondary firing chamber b and three-level combustion chamber c are formed between three groups of combustion cups.
In this example, can be selected cup cylinder sidewall thickness be 2mm combustion cup, three-level combustion cup outer diameter (radius) be successively chosen as 10mm,
14mm, 18mm, burner core radius are chosen as 6mm, it is described under the conditions of three-level combustion chamber thickness be 2mm.Burner core and three
Grade combustion cup height successively chooses 46mm, 48mm, 50mm and 52mm, and three-level combustion chamber height is followed successively by 46mm, 48mm and 50mm,
Burner whole height is 52mm.Fig. 2 applies example and air inlet pipe space structure schematic diagram for it.
Air inlet is set in combustion chamber bottom, wherein the bottom single-stage combustion chamber a is uniformly arranged 4 single-stage combustion chamber air inlets
5, the secondary firing bottom chamber b and single-stage combustion chamber air inlet 5 are staggeredly uniformly arranged 4 secondary firing chamber air inlets 6, three-level for 45 °
The bottom combustion chamber c is uniformly arranged 8 three-level combustion chamber air inlets 7 on the basis of single-stage combustion chamber air inlet 5.Actual use process
Middle oxygen enters single-stage combustion chamber a and three-level combustion chamber c by single-stage combustion chamber air inlet 5 and three-level combustion chamber air inlet 7, can
Combustion gas enters secondary firing chamber b by secondary firing chamber air inlet 6.Being utilized respectively volume control device, (such as gas flow controls
Device) it adjusts into burner internal combustible gas and oxygen volume flow proportion, so that its is maintained combustion reaction stoichiometric number proportion
Relationship.Such as test H2When burning, H is maintained2And O2Volume flow proportion is 2:1, uses CH4When being tested, then CH is maintained4And O2
Volume flow proportion is 1:2.In addition, should control gas flow should not be excessive, makes to obtain stably stratified flow flame when Actual combustion
Gas flow gradually rises from smaller value, stablizes combustion flame needed for finally obtaining.
Based on the above embodiments, a kind of concentric alternately wake burner based on combustion reaction stoichiometric number proportion, can
For combustible gas burning and combustion product measurement etc..Enter the combustible gas and oxygen volume flow proportion of burner by adjusting,
The combustion testing to different type combustible gas may be implemented, obtain abundant, reproducible, the combustion stablized gas burning fire that burns
Flame.
Disclosed above is only the embodiment of invention, but is not used to limit itself, any skill for being familiar with this field
Art personnel can carry out relevant design, improvement etc. according to its essential idea, without departing from the spirit of the invention, all should
It is within the scope of the present invention.
Claims (6)
1. a kind of concentric alternately wake gas burner based on stoichiometric number proportion, it is characterised in that: utilize cylinder-shaped combustion
Beaker and cylindrical type burner core construct burner, and burner includes 3 grades of concentric loop combustion chambers, are passed through combustion chamber by adjusting
The volume flow of interior gaseous combustible object and combustion adjuvant oxygen makes it meet combustion chemistry reaction stoichiometric number proportion.
2. a kind of concentric alternately wake gas burner based on stoichiometric number proportion according to claim 1, special
Sign is: the burner is made of 3 different cylinder-shaped 3 grades of combustion cups of size and 1 cylindrical type burner core, building block
Bottom is respectively provided with threaded hole, and the component is sequentially connected fixation using bolt.
3. a kind of concentric alternately wake gas burner based on stoichiometric number proportion according to claim 1, special
Sign is: the burner formation is followed successively by level-one, second level, three-level concentric loop combustion chamber from inside to outside, wherein level-one, three-level
It is passed through oxygen in combustion chamber, secondary firing is intracavitary to be passed through combustible gas, oxygen and combustible gas in burner tip nozzle successively shape
It strikes a bargain and replaces wake shape.
4. a kind of concentric alternately wake gas burner based on stoichiometric number proportion according to claim 3, special
Sign is: the combustion chamber bottom setting is uniformly distributed air inlet, and wherein single-stage combustion bottom of chamber portion is successively angularly uniformly arranged 4
A single-stage combustion chamber air inlet, secondary firing bottom of chamber portion and single-stage combustion the chamber 45o that interlocks angularly are uniformly arranged 4 secondary firings
Chamber air inlet, three-level combustion chamber are successively angularly uniformly arranged 8 three-level combustion chamber air inlets on the basis of single-stage combustion chamber.
5. a kind of concentric alternately wake gas burner based on stoichiometric number proportion according to claim 3, special
Sign is: the combustion chamber is passed through combustible gas and oxygen by the air inlet that bottom is arranged, and when use burns anti-according to combustible gas
It answers the ratio between stoichiometric number to control gas flow, makes level-one, the sum of oxygen volume flow and secondary firing chamber in three-level combustion chamber
Interior combustible gas volume flow meets completely burned stoichiometric number ratio；After combustor air inlet is opened, held using external electric spark
It is continuous to ignite, thus obtain combustible gas sufficiently, completely burned flame.
6. a kind of concentric alternately wake gas burner based on stoichiometric number proportion according to claim 1, special
Sign is: the burner using when be placed in inert atmosphere, to avoid environmental gas component to gas supply volume flowrate proportioning
It influences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502865.2A CN109556112A (en) | 2018-12-10 | 2018-12-10 | A kind of concentric alternately wake gas burner based on stoichiometric number proportion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502865.2A CN109556112A (en) | 2018-12-10 | 2018-12-10 | A kind of concentric alternately wake gas burner based on stoichiometric number proportion |
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| CN109556112A true CN109556112A (en) | 2019-04-02 |
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|---|---|---|---|
| CN201811502865.2A Pending CN109556112A (en) | 2018-12-10 | 2018-12-10 | A kind of concentric alternately wake gas burner based on stoichiometric number proportion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596302A (en) * | 2019-10-18 | 2019-12-20 | 合肥工业大学 | Liquid level stabilization wake flow combustion experimental device based on communicating vessels |
Citations (8)
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|---|---|---|---|---|
| JPH10160131A (en) * | 1996-11-26 | 1998-06-19 | Mitsubishi Materials Corp | Rotary kiln burner |
| US5871343A (en) * | 1998-05-21 | 1999-02-16 | Air Products And Chemicals, Inc. | Method and apparatus for reducing NOx production during air-oxygen-fuel combustion |
| EP1016825A1 (en) * | 1998-12-30 | 2000-07-05 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Combustion method and uses thereof in producing glass and metal |
| CN203927920U (en) * | 2014-06-12 | 2014-11-05 | 北京中天元环境工程有限责任公司 | Gas nozzle and burner |
| WO2015200346A1 (en) * | 2014-06-23 | 2015-12-30 | Air Products And Chemicals, Inc. | Solid fuel burner and method of operating |
| CN106958816A (en) * | 2017-05-26 | 2017-07-18 | 程石 | A kind of cracking gas pure oxygen burner of biomass, domestic waste high-temperature cracking furnace |
| CN206418008U (en) * | 2017-01-19 | 2017-08-18 | 锦州新世纪石英玻璃有限公司 | Quartz ware welding torch |
| EP3366994A1 (en) * | 2017-02-22 | 2018-08-29 | Air Products And Chemicals, Inc. | Double-staged oxy-fuel burner |
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2018
- 2018-12-10 CN CN201811502865.2A patent/CN109556112A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160131A (en) * | 1996-11-26 | 1998-06-19 | Mitsubishi Materials Corp | Rotary kiln burner |
| US5871343A (en) * | 1998-05-21 | 1999-02-16 | Air Products And Chemicals, Inc. | Method and apparatus for reducing NOx production during air-oxygen-fuel combustion |
| EP1016825A1 (en) * | 1998-12-30 | 2000-07-05 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Combustion method and uses thereof in producing glass and metal |
| CN203927920U (en) * | 2014-06-12 | 2014-11-05 | 北京中天元环境工程有限责任公司 | Gas nozzle and burner |
| WO2015200346A1 (en) * | 2014-06-23 | 2015-12-30 | Air Products And Chemicals, Inc. | Solid fuel burner and method of operating |
| CN206418008U (en) * | 2017-01-19 | 2017-08-18 | 锦州新世纪石英玻璃有限公司 | Quartz ware welding torch |
| EP3366994A1 (en) * | 2017-02-22 | 2018-08-29 | Air Products And Chemicals, Inc. | Double-staged oxy-fuel burner |
| CN106958816A (en) * | 2017-05-26 | 2017-07-18 | 程石 | A kind of cracking gas pure oxygen burner of biomass, domestic waste high-temperature cracking furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596302A (en) * | 2019-10-18 | 2019-12-20 | 合肥工业大学 | Liquid level stabilization wake flow combustion experimental device based on communicating vessels |
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Application publication date: 20190402 |