CN1224490A - Burner - Google Patents
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- Publication number
- CN1224490A CN1224490A CN 97196166 CN97196166A CN1224490A CN 1224490 A CN1224490 A CN 1224490A CN 97196166 CN97196166 CN 97196166 CN 97196166 A CN97196166 A CN 97196166A CN 1224490 A CN1224490 A CN 1224490A
- Authority
- CN
- China
- Prior art keywords
- burner
- combustion
- pipe
- chamber
- intervalve
- 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.)
- Pending
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- 238000002485 combustion reaction Methods 0.000 claims description 89
- 239000007789 gas Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000002737 fuel gas Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The present invention relates to a burner for mixing and burning at least two burning mediums (28, 38, 48) especially combustion-supporting air and a lean gas as gas for burning. The burner includes plurality of burning nozzles, each nozzle includes at least three pipes (20, 30 40) disposed with a common axis. These pipes are disposed with a certain distance with each other in radial direction in order to form annular spacing pipes (39, 49) through which the burning mediums are introduced into a burning chamber. The design of the present invention can mix and burn the gas burning mediums better.
Description
The present invention relates to a kind ofly be used to mix and the burner of at least two kinds of combustion mediums that burn as claim 1 is as described in the preamble.
For said burner, be particularly suitable for adopting and help right air and as the poor gas or the lean gas of fuel gas.Described burner comprises some burner noz(zle)s, respectively does for oneself one and manages, and this pipe is used for carrying combustion medium to the combustion chamber, also comprises an inflow device, and being used for provides other combustion medium to the end of the combustion chamber of this pipe one side.
Said burner is disclosed in U.S. Pat 5,267, in 850, this Patent publish a kind of combustion system and a kind of high temperature purpose burning process that is used for.On a burning shower nozzle of described burner, produce a central high-velocity combustion stream, this combustion flow flows form encirclement in the form of a ring by low speed fuel.
Another kind of burner is to use with the hot gas generator that skill is exposed among the DE 4208951C2.In order to carry combustion medium, known burner has pipe, the free end of these pipes by the outlet nozzle that is used to import second kind of combustion medium around.This known structure can produce fabulous completing combustion, thereby causes the generation of short combustion flame.But, be necessary known burner to be done further improvement at the degree and the length of flame of completing combustion.
The purpose of this invention is to provide a kind of burner, this burner can guarantee that also combustion medium burns very fully even calorific value is extremely low under short flame situation.
According to the present invention, above-mentioned purpose is to be realized by a kind of burner with characteristic feature of claim 1.A burner noz(zle) has the pipe of three mutual arranged in co-axial alignment at least, i.e. inner tube, a core pipe and an exterior tube, and at least one intervalve between above-mentioned.Described pipe is the interval radially, and to form the annular gap pipe, combustion medium can be transported in the combustion chamber through these pipes.
Described burner noz(zle) structure also has at least two annular gap holes except the central cores pore, adopt this structure, in fact can all desirable modes be regulated by the flame on this burner noz(zle).Therefore,, can use two or more combustion mediums, its pressure difference in all cases according to the number of perforate.The opening of described at least three burner noz(zle)s that are provided with coaxially to each other can also be guaranteed the abundant mixing of combustion medium, and therefore produces king-sized burning surface, and this can cause short flame and splendid abundant degree of combustion.Therefore, the axially-aligned of the rank shape of described pipe can be discharged at the opportunity and the optimal position of the best by admixture of gas.
An advantage of burner of the present invention is that it can be that the extremely low fuel gas of calorific value carries out work with so-called lean gas or poor gas one.Adopt hitherto known burner, can realize that calorific value is at least about 2500KJ/m
3The spontaneous combustion of poor gas (standard state).Test shows, is used in burner of the present invention, even be approximately 1900KJ/m with calorific value
3Poor gas (standard state), also have independently combustion process.Therefore, need not the burner that other uses senior fuel gas.
Can obtain good especially combustion efficiency by the pipe that stretches into different length in the combustion chamber.Therefore, these burner noz(zle) pipes have rank shape structure.These burner noz(zle) holes are separated from each other along the axial direction of pipe.This can cause different gas combustion media to mix with position and time shifting mode, and this can cause the good especially mixing of described medium.
Preferably described exterior tube deeper stretches in the described combustion chamber than described intervalve.Therefore, form the horizontal boundary of burner noz(zle), so that avoid of the influence of adjacent burner noz(zle) basically to mixed process by described exterior tube.
According to a kind of preferred embodiment, described core pipe deeper stretches in the combustion chamber than described intervalve.Therefore, the come into existence mixing of the combustion medium that flows out described annular gap pipe.After the lateral parts of described burner noz(zle) mixes, between the combustion medium that flows out described core pipe, obtained extra turbulent flow and therefore obtained king-sized contact surface.
In order to allow this structure can guarantee to concentrate or restraint well the flame of poly-independent burning nozzle, described exterior tube deeper stretches in the combustion chamber than described core pipe.
According to the further improvement of burner of the present invention,, and be connected by conduit with a burner noz(zle) separately for each combustion medium is provided with a chamber.The described chamber of independently, separating has inlet separately again, and described combustion medium flows in the relevant chamber by inlet separately, and simply mode is regulated the specified pressure of combustion medium in these chambers.
Can do further improvement to above-mentioned embodiment, three chambers promptly are set, first chamber wherein is connected with described core pipe, and second chamber is connected with the annular gap pipe that is formed by core pipe and intervalve, and the 3rd chamber is connected with the annular gap pipe that is formed by intervalve and exterior tube.Therefore, in this further improvement, first kind of combustion medium flows in the combustion chamber through first chamber and core pipe.Second kind of combustion medium flows in the combustion chamber with relevant annular gap pipe through second chamber, and the third combustion medium is to import by the 3rd chamber and another annular gap conduit.The result who supplies combustion medium so respectively is to realize the good mixing of three kinds of different combustion mediums.
According to another embodiment, two chambers are arranged, one of them is connected with an annular gap pipe with the core pipe.Another chamber correspondingly is connected with remaining one or several annular gap pipe.Like this, just can go in the combustion chamber, can produce the turbulent flow of higher desired level like this by several separate burner noz(zle) orifice flow such as two kinds combustion mediums.
For some purposes, described burner noz(zle) preferably has four pipes.Like this, except the core pore, have three annular gap holes.Therefore, can supply with four kinds of combustion mediums respectively in this embodiment.When using less combustion medium, can carry a kind of combustion medium by some burner noz(zle)s hole, to realize good mixing.If specific use proves that this structure investment is worthwhile, can certainly be provided with the burner noz(zle) more than five or five.
In order to improve the turbulent flow of combustion medium, preferably eddy flow or vortex device are set at the combustion chamber of described burner noz(zle) one end.This vortex device can be radial oriented substantially nozzle.A kind of simple especially and effective vortex device, for example, the device that is used for described core pipe is to be made of radial oriented pipe on this core tube wall, the free end of this core pipe is by a plate sealing or sealing.
In order to ensure the fault-free igniting, burner of the present invention is done so further improvement, a start-up burner promptly is set, burner noz(zle) is set around it.For start-up burner is supplied independently combustion medium, particularly a kind of senior fuel gas.After certain duration of ignition, this start-up burner can cut out once more.
A special benefits of the present invention is that described combustion medium can be sulfurous gas, particularly hydrogen sulfide.Up to the present, these gases all must be handled in expensive mode, still, but can carry out useful heat burning and recirculation with burner of the present invention now.
Below with reference to a kind of embodiment and accompanying drawing the present invention is done and to explain.Wherein:
Fig. 1 is the show in schematic partial sections of burner of the present invention.
Fig. 2 is the schematic elevational view of burner of the present invention, duplicates little among ratio Fig. 1.
Partial sectional view shown in Figure 1 is represented burner 10 of the present invention, and it is by a burner noz(zle) 11 of being made up of the pipe of three arranged in co-axial alignment.Inner tube is known as core pipe 20, around it around the peripheral tube 40 of an intervalve 30 and an outside.
By flange 34 second or so-called intervalve are fixed on second chamber 31 around through hole 32.The internal diameter of the axially extending intervalve 30 of 12 direction is greater than the external diameter of core pipe 20, so that form the first annular gap pipe 39 between core pipe 20 and intervalve 30 along the combustion chamber.Second kind of combustion medium 38 can pass through the described first annular gap pipe 39, flow to the free end of burner noz(zle) 11 through inlet 33 and second chamber 31.
Since the 3rd chamber 41 places, 12 direction is coaxial along the combustion chamber extends to two other pipes around, peripheral tube by peripheral tube 40 for core pipe 20 and intervalve 30.Peripheral tube 40 is fixed on the sidewall of combustion chamber of the 3rd chamber by flange 44 in the mode identical with described two other pipes, makes it around through hole 42.The internal diameter of exterior tube 40 is equally greater than the external diameter of intervalve 30, thereby forms the second annular gap pipe 49.The third combustion medium 48 this annular gap pipe 49 of can flowing through, the 43 and the 3rd chamber 41 flows into combustion chambers 12 by entering the mouth.
With regard to the representative embodiment of burner of the present invention, this burner has a kind of three chamber structures, have one or two kind of fuel gas flow through the core pipe 20 and the first annular gap pipe usually, and the second annular gap pipe 49 is to be used to carry combustion air.Specifically, can contain acid gas, for example identical or different hydrogen sulfide containing gas of concentration by core pipe 20 and 39 conveyings of the first annular gap pipe.
For different combustion medium 28,38,48 can be mixed best in the mixed zone 13 of the end of the combustion chamber of burner noz(zle) 11 side, take several measures.At first, peripheral tube 40 deeper stretches in the combustion chamber 12 than core pipe 20, and core pipe 20 deeper stretches in the combustion chamber 12 than intervalve 30.With regard to the shape structure of rank, at first, the second kind of combustion medium 38 that flows out from the opening of the first annular gap pipe 39 mixes with the third combustion medium 48 that flows out from the outlet of the second annular gap pipe 49, only after second kind of combustion medium 38 and 48 mixing of the third combustion medium, first kind of combustion medium 28 just flows out from core pipe 20, enter mixed zone 13, so that therefore produce the time of relative first mixed process and the further turbulent displacement at position.The good especially mixing that this can cause combustion medium 28,38,48 can fully be burnt short flame well.Stretch into the horizontal boundary that peripheral tube 40 in the combustion chamber 12 plays a part mixed zone 13 the darklyest, guarantee to have the zone that the part of strong turbulent flow limits by it.
Further step as strengthening the turbulent flow between each combustion medium 28,38,48 is provided with vortex device on core pipe 20 and intervalve 30.Each vortex device 25,35 comprises that one is cut off or sealing plate 26,36, and this plate is engaged in the combustion chamber one side end of core pipe 20 or intervalve 30.By radial hole or groove 27,37 specific combustion medium 28,38 is radially imported mixed zone 13.
By with stack can produce strong especially turbulent flow from the axial flow of second annular gap pipe 49.
Fig. 2 is the front view than small scale of burner 10 of the present invention.As shown in the figure, a start-up burner 14 that is positioned at central authorities is arranged, around it, be provided with some burner noz(zle)s 11, thereby be unlikely to above the pulling force on the part that only has its central point to represent.Only show a connector of inlet 23 in this case, first kind of combustion medium 28 flows in first chamber 21 by this inlet.Certainly, also have second and the 3rd inlet connector.
Burner of the present invention has some independently burner noz(zle)s 11, therefore form one big be used for combustion purpose the surface.Therefore, described burner can burn sulfide hydrogen or contain the gas of acid, and a kind of gas in back preferably fully mixes with the combustion air that flows into along perpendicular direction.When this burner outlet requires certain outlet temperature and inadequate when containing acid gas content, can regulate burner, so that start-up burner can devote oneself to work in this case at once once again, thereby meet the requirements of the burner outlet temperature.
Claims (9)
1. be used for mixing and at least two kinds of combustion mediums of burning, the burner of combustion air and a kind of poor gas as fuel gas particularly, this burner has some burner noz(zle)s (11), these burner noz(zle)s have the pipe that is used for combustion medium is transported to combustion chamber (12), a burner noz(zle) (11) has three mutual coaxial pipes at least, an i.e. inner core tube (20), outer peripheral pipe (40) and at least one intervalve (30), and make these calibers to separation, to form annular gap pipe (39,40), combustion medium (28,38,48) can be transported in the combustion chamber (12) by these pipes, it is characterized in that:
Peripheral tube (40) deeper stretches in the combustion chamber (12) than other pipe, and forms a mixed zone (13),
Core pipe (20) and intervalve (30) stretch in the mixed zone (13) to some extent,
Each free sealing plate (26, the 36) sealing of the end of core pipe (20) and intervalve (30) one side in the combustion chamber and
Be provided with opening on core pipe (20) and intervalve (30), combustion medium (28,38) radially flows in the mixed zone (13) substantially by these openings.
2. burner as claimed in claim 1 is characterized in that core pipe (20) deeper stretches in the combustion chamber (12) than intervalve (30).
3. as the burner of claim 1 or 2, it is characterized in that these chambers are pipeline with a nozzle (11) respectively and are connected for each combustion medium (28,38,48) provides a chamber (21,31,41).
4. as a described burner among the claim 1-3, it is characterized in that providing three chambers (21,31,41), wherein, first chamber (21) is connected with core pipe (20), and second chamber (31) is connected with the annular gap pipe (39) that is formed by core pipe (20) and intervalve (30), and the 3rd chamber (41) is connected with the annular gap pipe (49) that is formed by intervalve (30) and peripheral tube (40).
5. as a described burner among the claim 1-3, it is characterized in that being provided with two chambers, one of them connects with a core pipe (20) and an annular gap pipe (39,49).
6. as a described burner among the claim 1-5, it is characterized in that burner noz(zle) (11) has four pipes.
7. as a described burner among the claim 1-6, it is characterized in that being provided with a start-up burner (14), and burner noz(zle) (11) is arranged on around it.
8. as a described burner among the claim 1-7, it is characterized in that a kind of in the described combustion medium (28,38,48) is the gas that contains hydrogen sulfide.
9. as a described burner among the claim 1-8, it is characterized in that described opening is made into groove (27,37), these grooves are arranged on the end of combustion chamber one side of core pipe (20) and intervalve (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97196166 CN1224490A (en) | 1996-07-05 | 1997-07-04 | Burner |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19627203.3 | 1996-07-05 | ||
| CN 97196166 CN1224490A (en) | 1996-07-05 | 1997-07-04 | Burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1224490A true CN1224490A (en) | 1999-07-28 |
Family
ID=5179610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97196166 Pending CN1224490A (en) | 1996-07-05 | 1997-07-04 | Burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1224490A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858597A (en) * | 2009-04-07 | 2010-10-13 | 通用电气公司 | The combustion tube of low emission and anti-tempering and device |
| CN102245968A (en) * | 2008-12-10 | 2011-11-16 | 株式会社Ihi | Combustor |
| CN104541102A (en) * | 2012-06-05 | 2015-04-22 | 德国莱歇公司 | Method for operating a multi gas burner and multi gas burner |
| CN105378381A (en) * | 2013-04-19 | 2016-03-02 | 德国莱歇公司 | Central burner for multi-fuel, multi-lance burner system |
| CN109737401A (en) * | 2018-12-28 | 2019-05-10 | 西安交通大学 | A kind of low NO being mixed and burned using lean gas/flammable cyclonic current |
-
1997
- 1997-07-04 CN CN 97196166 patent/CN1224490A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102245968A (en) * | 2008-12-10 | 2011-11-16 | 株式会社Ihi | Combustor |
| CN102245968B (en) * | 2008-12-10 | 2014-03-05 | 株式会社Ihi | Combustor |
| CN101858597A (en) * | 2009-04-07 | 2010-10-13 | 通用电气公司 | The combustion tube of low emission and anti-tempering and device |
| CN104541102A (en) * | 2012-06-05 | 2015-04-22 | 德国莱歇公司 | Method for operating a multi gas burner and multi gas burner |
| CN105378381A (en) * | 2013-04-19 | 2016-03-02 | 德国莱歇公司 | Central burner for multi-fuel, multi-lance burner system |
| US10088155B2 (en) | 2013-04-19 | 2018-10-02 | Loesche Gmbh | Central burner for multi-fuel multiple lance burner system |
| CN109737401A (en) * | 2018-12-28 | 2019-05-10 | 西安交通大学 | A kind of low NO being mixed and burned using lean gas/flammable cyclonic current |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |