DE1937798B2 - Atmospheric gas burner in which the Coanda effect is used - Google Patents
Atmospheric gas burner in which the Coanda effect is usedInfo
- Publication number
- DE1937798B2 DE1937798B2 DE1937798A DE1937798A DE1937798B2 DE 1937798 B2 DE1937798 B2 DE 1937798B2 DE 1937798 A DE1937798 A DE 1937798A DE 1937798 A DE1937798 A DE 1937798A DE 1937798 B2 DE1937798 B2 DE 1937798B2
- Authority
- DE
- Germany
- Prior art keywords
- gas
- annular gap
- air
- annular
- flame
- 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
Links
Classifications
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
- B01F25/211—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being surrounded by guiding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/28—Jet mixers, i.e. mixers using high-speed fluid streams characterised by the specific design of the jet injector
- B01F25/282—Jet mixers, i.e. mixers using high-speed fluid streams characterised by the specific design of the jet injector the jet injector being of Coanda-type, i.e. having a surface to attract the jet for adjusting its direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
- B01F25/31232—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements used simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/834—Mixing in several steps, e.g. successive steps
-
- 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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
30 Auf diese Weise ist gewährleistet, daß bei einer Gaszufuhrkammer mit im Bereich des ersten Ringspaltes angesetzten Ringflansch möglicherweise anIn this way it is ensured that in the case of a gas supply chamber with in the area of the first annular gap attached ring flange possibly
der Verbindungsstelle austretendes Leckgas sofort inthe leakage gas escaping from the connection point immediately
das Gas-Luft-Geniischstroin mitgerissen wird, so daß 35 Maßnahmen zur restlosen Abdichtung der Verbin-the gas-air genius is carried away so that 35 Measures for the complete sealing of the connection
dungssteile überflüssig sind.application parts are superfluous.
Die Erfindung bezieht sich auf einen atmosphäri- Ferner kann die Ausbildung auch noch so getrof-The invention relates to an atmospheric- Furthermore, the training can also be met-
schen Gasbrenner mit einer zentralen Luftzuführung. fen sein, daß die Abdeckhaube ein zentrales Inneneiner m diese über emen Ringspalt mündenden ring- rohr aufweist, welches in den Ringkörper eintaucht, tormigen Gaszufuhrkammer, an deren Ringspalt ein 40 Dadurch wird ein Ringquerschnitt für das Gas-Ringkorper angrenzt, dessen an den Ringspalt an- Luft-Gemisch herbeigeführt, wodurch eine innige scMieliender Bereich eine m Achsrichtung führende, Vermischung von Gas und Luft erzielt wird, da der den Uoanda-Rffekt bewirkende Abrundung aufweist, Gas- und der Luftstrom eng zusammengeführt wersowie einem Brennermundungsrohr. Bei einem der- den. Das Innenrohr ergibt außerdem einen weiteren artigen Gasbrenner gemäß dem betriebsinternen 45 Vorteil bei Gasen mit hoher Zündgeschwindigkeit, btand der Technik der Erfinder wird das tangential z. 3. Stadtgas, bei denen ohne das Innenrohr die an die Abrundung des Ringkörpers geleitete Brenn- Möglichkeit besteht, daß die Flamme schon weiter gas auf Grund des Coanda-Effektes in die Luftzufüh- stromauf im Inneren des Brennerkörpers beginnt, rung umgelenkt und strömt mit hoher Geschwindig- Der durch Anordnung des Innenrohres erzielte Ringkeit unter Luftansaugung an der Wandfläche des 50 querschnitt verhindert, daß die Geschwindigkeit des Rmgkorpers entlang. Diese Art der Vermischung von Gas-Luft-Gemisches in der Mittelachse zu niedrig Brenngas und Luft ist noch verbesserungsfähig. wird, und bewirkt, daß das Gemisch mit der an dergas burner with a central air supply. be f s, that the cover a central inner One m this annular ro hr which opens on emen annular gap which is immersed in the annular body, tormigen gas supply chamber on whose annular gap a 40 This is adjacent a ring cross section for the gas-Ringkorper whose at the Annular gap brought about an air mixture, whereby an intimate scMieliender area leading in an axial direction, mixing of gas and air is achieved, since the rounding-off effecting the Uoanda effect has gas and air flow closely brought together as well as a burner mouth pipe. With one of them. The inner tube also yields another type gas burner according to the in-house 45 advantage of gases with high ignition speed, btand the art, the inventor is the z tangential. 3. Town gas, in which, without the inner tube, there is the possibility of burning, which is led to the rounding of the ring body, that the flame already continues to gas due to the Coanda effect in the air supply upstream inside the burner body, redirects and flows at a higher rate Velocity- The annularity achieved by the arrangement of the inner tube with air suction on the wall surface of the 50 cross-section prevents the velocity of the Rmgkorpers along. This type of mixing of the gas-air mixture in the central axis with too little fuel gas and air can still be improved. is , and causes the mixture with the at the
»λ· u· · Le -Patentschrift 3419 339 ist eine Randzone auftretenden hohen Geschwindigkeit zur»Λ · u · · L e patent specification 3419 339 is an edge zone for occurring high speeds
Mischeinrichtung fur emen Gasbrenner bekanntge- Brennermündung strömt, wodurch ein Zurückschlüpworden, bei dem zum Erzielen des Coanda-Effektes 55 fen der Flamme in den stromauf befindlichen TeU ein kegelförmiger Führungskörper vorgesehen ist, des Brennerkörpers unmöglich wird, welcher zum Gasaustritt hin halbkugelförmig ausge- Es werden daher mit diesem Gasbrenner auch Anbildet ist Zwischen dem gasaustrittseitigen Ende des laufwiderstände ohne Rückschlagen oder Pulsieren Fuhrungskorpers und der Gasaustrittsöffnung ist ein überwunden.Mixing device for a gas burner known - burner mouth flows, whereby a slipping back has been made, in which to achieve the Coanda effect 55 fen the flame in the upstream TeU a conical guide body is provided, the burner body becomes impossible, which is hemispherical towards the gas outlet is between the end of the running resistance on the gas outlet side without kickback or pulsation Fuhrungskorpers and the gas outlet opening is overcome.
Ringspalt gebildet, so daß das austretende Gas radial 60 Der Gegenstand der Erfindung wird in einem Ausnacn außen auf den halbkugelförmigen Teil des Füh- führungsbeispiel an Hand der Zeichnung erläutert rangskorpers auftnfft und die erforderliche Verbren- welche schematisch im Schnitt einen erfindungsgenungsluft ansaugt. mäß ausgebildeten atmosphärischen GasbrennerAnnular gap is formed so that the exiting gas appears radially 60 The subject of the invention is explained in a detail on the outside of the hemispherical part of the guide example with reference to the drawing and the required combustion, which schematically sucks in an inventive air in section. appropriately trained atmospheric gas burner
Weiterhin ist durch die deutsche Patentschrift zeigt.It is also shown by the German patent specification.
916 638 das Zerstäuben von Flüssigkeit oder Pulver 65 Dem im wesentlichen rohrartigen Gasbrenner wird in Luft unter zweifacher Ausnutzung des Coanda-Ef- das zu verbrennende Gas von einer Hauptgasleitung fektes bekannt, jedoch kommen dabei drei Medien im Sinne des Pfeiles 10 zugeführt und in eine Gaszumiteinander zur Einwirkung, nämlich das zu zerstäu- fuhrkammer 11 eingeleitet. Diese ist als Ringmantel-916 638 the atomization of liquid or powder 65 The essentially tubular gas burner is in air with double utilization of the Coanda-Ef- the gas to be burned from a main gas line fectes known, but three media in the direction of arrow 10 are supplied and in a gas to each other for action, namely the atomizing chamber 11 initiated. This is as a ring jacket
raum mit einer rohrartigen Außenwand 12 ausgebilh £? Innen^^d dies« Ringmantelraiames ist eüi rohrartig ausgebildeter Ringkörper 13 vorgesehen in welchen eine Luteuführung einn.ündet An dem nach der Luftzuführung gerichteten Ende der Außenwand 12 ist ein radial nach innen, gerichtet" iif2 t r* angebracht, welLr eSn fur den Austritt des Gases aus der Gaszulührkammer 11 dienenden Ringspalt 14 an der einen Seite begrenz^ dessen andere Seite durch das kurvenförmig ausgebogene Ende 131 des Ringkörpers 13 beerendroom with a tubular outer wall 12 designed ? Inside this ring casing a tube-like ring body 13 is provided, in which a tube leads into. At the end of the outer wall 12 directed towards the air supply, a radially inward, directed if 2 t r * is attached, which is for the Exit of the gas from the annular gap 14 serving the gas supply chamber 11 delimits on one side its other side through the curved end 131 of the annular body 13 in a berry-like manner
£ Coa Ednd™3; If5 Β*"**« *ί It nachS den Coanda-Effekt bewirkenden Kurve geformt Dadurch wird Gas, welches durch den Ringspalt 14 hindurch aus der Gaszufuhrkammer 11 radial nach ώ-nen ausströmt, im Sinne des Pfeües 15 in das Innere des Ringkörper 13 hinein umgelenkt und strömt mit£ Co a E d nd ™ 3 ; If 5 Β * "**" * ί It according to S the curve causing the Coanda effect is formed. As a result, gas which flows out through the annular gap 14 from the gas supply chamber 11 radially in the direction of the arrow 15 into the interior of the annular body 13 deflected into it and flows with it
SentbTo ££ -g ^f derWa°d des Ringkörpers eintaucht und einen Ringquerschnitt für das Gas-ΑΓη wird Luft angesaugt und diese ein- Luft-Gemisch bildet, welcher die innige VermischungSentbTo ££ - g ^ f DERWA ° d of the annular body is immersed and a ring cross-section for the gas-ΑΓη is sucked air, and this single air mixture forms, which the intimate mixing
rS^,rr^^^i^ausrenden 2o begünstigt·rS ^, rr ^^^ i ^ favored from r ends 2o
»t das flammen- Sowohl der Ringspalt 14 als auch der Ringspalt 19»T the flame - Both the annular gap 14 and the annular gap 19
der Gaszufuhr- ist einstellbar, z.B. über Gewindeverbindung desthe gas supply is adjustable, e.g. via the threaded connection of the
so daß T ,,* \m <:· Ά A?d«*haube 16 um- Ringflansches 121 an der Außenwand 12 der Gaszuauf diese Weise LwI1IT6 r^fl 1? durch den ^kammer 11 bzw. des zweiten Ablenkkörpers 20 Sdurch zur pfntrin -f 5 Liftzuführungsspalt 18 25 am inneren Ende des Ringkörpers 13, so daß damit s?rcmen kaTn '^* ™α&οτΡ*™ « eine LeistungseinsteUung ώ großen Grenzen möglichso that T ,, * \ m <: · Ά A d '* hood 16 environmentally annular flange 121 on the outer wall 12 of the Gaszuauf this way LWI 1 IT 6 r ^ fl 1? through the ^ chamber 11 or the second deflector 20 S through to the pfntrin -f 5 lift feed gap 18 25 at the inner end of the ring body 13, so that it can s? rcmen '^ * ™ α & οτ Ρ * ™ «a power setting ώ large limits possible
Strnmah H« Dinn™oit λλ · isL Ebenso ist es möglich, den Gasbrenner von einerStrnmah H «Din n ™ oi t λλ · isL It is also possible to use the gas burner from a
i»Zii ■ Ringspaltes 14 ist an der Gaszufuhr- Gasart auf eine andere Gasart mit wenigen HandgrifmT4eiLTinr1^f Gasatustrittsöffnung durch fen umzustellen, ohne daß irgendein Austausch von .men zweiten Ringspalt 19 angeordnet, welcher an 30 Teilen erforderlich ist.i »■ Zii Ri ngspaltes 14 is to switch on the gas-supply type of gas to another gas with a few HandgrifmT4eiLTinr 1 ^ f Gasatustrittsöffnung by fen, without any exchange of .men second annular gap 19 is arranged, which is required to 30 parts.
der einen Seite durch den Rand der Außenwand 12 der Gaszufuhrkammer 11 und an der anderen Seif3 durch einen zweiten flanschartigen Ablenkkörper 20 begrenzt ist, dessen Außenfläche 201 ebenfalls nach einer den Coanda-Effekt bewirkenden Kurve geformt ist. Am zweiten Ringspalt 19 strömt das Gas über die Rundung der Außenfläche 201 des zweiten Ablenkkörpers 20 mit einer dem Gasdruck aus der Hauptgasleitung entsprechenden hohen Geschwindigkeit im Sinne des Pfeiles 21 dem Verbrennungsraum zu. Das fiammwärts gerichtete Ende der Außenwand 12 der Gaszufuhrkammer 11 ist koaxial von einem Brennermündungsrohr 22 umgeben, so daß Luft im Sinne des Pfeües 23 angesaugt und mit dem aus dem zweiten Ringspalt 19 austretenden Gas vermischt wird.one side through the edge of the outer wall 12 of the gas supply chamber 11 and on the other Seif3 is limited by a second flange-like deflecting body 20, the outer surface 201 also according to a curve causing the Coanda effect is shaped. At the second annular gap 19, the gas flows over the Rounding of the outer surface 201 of the second deflector 20 with one of the gas pressure from the main gas line corresponding high speed in the direction of arrow 21 to the combustion chamber. That The downstream end of the outer wall 12 of the gas supply chamber 11 is coaxial with a burner mouth tube 22 surrounded so that air is sucked in in the sense of arrow 23 and with that from the second Annular gap 19 exiting gas is mixed.
Im Zentrum der Abdeckhaube 16 ist ein Innenrohr 24 angeordnet, welches in den Ringkörper 13In the center of the cover 16, an inner tube 24 is arranged, which is inserted into the ring body 13
Hierzu I Blatt ZeichnungenFor this purpose I sheet drawings
Claims (3)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1937798A DE1937798B2 (en) | 1969-07-25 | 1969-07-25 | Atmospheric gas burner in which the Coanda effect is used |
NL7010093A NL7010093A (en) | 1969-07-25 | 1970-07-08 | |
BE753821D BE753821A (en) | 1969-07-25 | 1970-07-23 | ATMOSPHERIC GAS BURNER WITH AIR INLET DUCT AND GAS INLET CHAMBER |
ES1970160580U ES160580Y (en) | 1969-07-25 | 1970-07-24 | GAS LIGHTER. |
FR7027362A FR2053162B1 (en) | 1969-07-25 | 1970-07-24 | |
GB3625670A GB1294552A (en) | 1969-07-25 | 1970-07-27 | Improvements in atmospheric gas burners |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1937798A DE1937798B2 (en) | 1969-07-25 | 1969-07-25 | Atmospheric gas burner in which the Coanda effect is used |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1937798A1 DE1937798A1 (en) | 1971-02-04 |
DE1937798B2 true DE1937798B2 (en) | 1974-04-25 |
Family
ID=5740850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1937798A Pending DE1937798B2 (en) | 1969-07-25 | 1969-07-25 | Atmospheric gas burner in which the Coanda effect is used |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE753821A (en) |
DE (1) | DE1937798B2 (en) |
ES (1) | ES160580Y (en) |
FR (1) | FR2053162B1 (en) |
GB (1) | GB1294552A (en) |
NL (1) | NL7010093A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1288420C (en) * | 1987-04-16 | 1991-09-03 | Russell Estcourt Luxton | Controlling the motion of a fluid jet |
US9943863B2 (en) | 2015-04-29 | 2018-04-17 | Delta Faucet Company | Showerhead with scanner nozzles |
RU2768639C2 (en) | 2017-11-20 | 2022-03-24 | Джон Цинк Компани, ЛЛК | Radiation wall burner |
CN113969349B (en) * | 2020-07-23 | 2023-07-14 | 中冶长天国际工程有限责任公司 | Blowing structure and nozzle thereof |
-
1969
- 1969-07-25 DE DE1937798A patent/DE1937798B2/en active Pending
-
1970
- 1970-07-08 NL NL7010093A patent/NL7010093A/xx unknown
- 1970-07-23 BE BE753821D patent/BE753821A/en unknown
- 1970-07-24 FR FR7027362A patent/FR2053162B1/fr not_active Expired
- 1970-07-24 ES ES1970160580U patent/ES160580Y/en not_active Expired
- 1970-07-27 GB GB3625670A patent/GB1294552A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1937798A1 (en) | 1971-02-04 |
ES160580U (en) | 1970-11-16 |
GB1294552A (en) | 1972-11-01 |
FR2053162A1 (en) | 1971-04-16 |
NL7010093A (en) | 1971-01-27 |
FR2053162B1 (en) | 1973-04-27 |
ES160580Y (en) | 1971-06-01 |
BE753821A (en) | 1970-12-31 |
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