SE127297C1

SE127297C1 -

Info

Publication number: SE127297C1
Authority: SE
Publication date: 1949-01-01

Description

Uppfinnare: E. B. Glendenning. Inventor: E. B. Glendenning.

Prioritet begiird frcin den 5 apri1 1944 (Amerikas forenta stater). Priority given to April 5, 1944 (United States of America).

Foreliggande uppfinning avser en brannare f6r flytande bransle, innefattande en vid sin ena ande oppen yttre luftkammare, en i denna yttre luftkammare i sin langdriktning installbart anordnad och vid sin ande oppen inre luftkammare samt ett i den inre luftkammaren i sin langdriktning installbart anordnat branslemunstyeke. The present invention relates to a burner for liquid fuel, comprising an outer air chamber open at one end, a longitudinally open air chamber arranged in this outer air chamber and an internal air chamber arranged in its longitudinal open air chamber and arranged in the inner air chamber in its longitudinal direction.

Det for brannaren enligt uppfinningen i lmvudsak kannetecknande dr att den at f8rsedd med dels en Iran den yttre luftkammarens utsida paverkbar anordning for den inre luftkammarens ()eh branslemunstyekets installning relativt varandra i langdriktningen, dels en darav oberoende och fran den yttre luftkammarens utsida avenledes paverkbar anordning for samtidig installning av den inre luftkammaren och branslemunstycket i forhallande till den yttre luftkammaren, dels slutligen en fran den yttre luftkammarens utsida avenledes paverkbar anordning for reglering av en i den inre luftkammaren forefintlig luftoppning for tillf8rande av luft till derma kammare fran den yttre luftkammaren. It is essentially characteristic of the burner according to the invention that it is provided with a device which can be actuated on the outside of the outer air chamber for the installation of the inner air chamber () or the branch nozzle relative to each other in the longitudinal direction, and a device which is independent of the outer air chamber. for simultaneous installation of the inner air chamber and the branch nozzle in relation to the outer air chamber, and finally a device which can be actuated from the outside of the outer air chamber for regulating an air opening present in the inner air chamber for supplying air to this chamber from the outer air chamber.

Det har i manga fall blivit brukligt att anvanda brannare for flytande branslen for marina, industriella och husuppvarmningsandamal, vilka brannare i stort sett arbeta automatiskt och krava ett minimum av tillsyn. Ett av de mera kanda slagen av brannare for flytande branslen är kant under namnet tryckstralbrannare och innefattar en anordning for finfordelning av oljan eller annat flytande bransle genom tillforsel av en branslestrom under tryck till ett finfordelningsmunstycke och blandning av det finfordclade branslet med konvergerande luftstralar i syfte att erna effektiv forbranning och att fa ut maximalvarmemangd ur branslet. Det är mycket viktigt, att man i delta slag av brdnnare vidmakthMler optimala driftbetingelser, enar aven sma variationer i matningshastigheten eller stromningsriktningen i blandningszonen medfOra clang forbranning, vilken ger sig tillkanna sasom stegrad bransleforbrukning per erhallen varmeenhet, samt sot ande laga, som medfor kol och/eller sotavsattningar i pannan, ugnen etc. Det optimala driftbetingelserna f Or tryckstralbrannare kunna bast bestammas genom analys ay forbranningsprodukterna, i det att den forhandenvarande koldioxidhalten ãr ett matt pa forbranningens effektivitet. Den faktor, som lattast kan regleras for ,ernaende av onskad gynnsam f Orbra.nning är lufttillforseln till forbranningskammaren, i det att branslet vanligen MHOres finfordelningsmustycket med konstant hastighet och tryck med hj alp av tryckpump och regulator. In many cases, it has become customary to use burners for the liquid industries for marine, industrial and domestic heating purposes, which burners generally operate automatically and require a minimum of supervision. One of the more well-known types of liquid fuel burners is an edge called pressure jet burner and includes a device for atomizing the oil or other liquid fuel by supplying a fuel stream under pressure to a atomizing nozzle and mixing the finely divided industry with converging air jets for the purpose of efficient combustion and to get maximum heat from the industry. It is very important that in delta types of burners the optimum operating conditions are maintained, even small variations in the feed rate or flow direction in the mixing zone lead to clang combustion, which is manifested as increased fuel consumption per obtained heat unit, as well as soot and other laws, which entail coal and / or soot deposits in the boiler, furnace, etc. The optimal operating conditions f Or pressure jet burners can best be determined by analysis of the combustion products, in that the available carbon dioxide content is a measure of the combustion efficiency. The factor that can be most easily regulated for obtaining the desired favorable combustion is the air supply to the combustion chamber, in that the industry usually MHOres the atomizing nozzle at constant speed and pressure with the aid of pressure pump and regulator.

Enar driftsbetingelserna aro kritiska, visar det sig, att en brannare, som konstruerats for effektiv forbranning av ett visst slag av brans-le, ofta arbetar otillfredsstallande, da den tillfores ett bransle med nagot andra egenskaper. Detta galler sarskilt om man forsaker forbranna betydande mangder av aromatiska produkter i en tryckstralbrannare ay bruklig typ. Det är ett andamal med foreliggande uppfinning att astadkomma en forbattrad tryckstralbrannare. Ett annat andamal är att astadkomma en tryckstralbrannare, som 'au kan regleras for effektiv forbranning av olika slag av flytande branslen, bade aromatiska och icke-aromatiska sadana. Ett ytterligare andamal är att astadkomma en tryckstralbrannare med effektiv och exakt reglering av lufttillforseln till forbranningskanmaaren mom ett vidstrackt driftsomrade. Andra andamal samt olika fOrdelar, som ernas vid tillampandet air uppfinningen, framga. av 151j ande beskrivning och ritning. If the operating conditions are critical, it turns out that a burner, designed for efficient combustion of a certain type of fuel, often works unsatisfactorily, as it is supplied to a fuel with somewhat different properties. This is especially true if one attempts to burn significant amounts of aromatic products in a pressure jet burner of the usual type. It is an object of the present invention to provide an improved pressure jet burner. Another object is to provide a pressure jet burner which can be regulated for efficient combustion of various kinds of liquid fuels, both aromatic and non-aromatic ones. A further object is to provide a pressure jet burner with efficient and precise control of the air supply to the combustion chamber with a wide operating range. Other objects and various advantages which come with the application of the invention will become apparent. of 151j spirit description and drawing.

Pa ritningen är fig. I en sidovy av brannaraggregat. — Fig. II visar i storre skala en partiell langdsektion genom aggregatet med luftlidan och flakten avlagsnade. — Fig. III 2— — visar i annu storre skala en langdsektion genom brannarens bakre del. — Fig. IV är en andvy a-v brannaren enligt fig. III med en bakre skyddshuv avlagsnad. — Fig. V visar en langdsektion efter linjen V—V i fig. III. Fig. VI -visar i storre skala en langdsektion genom brannarens enligt fig. II framre del, v.arvid den yttre luftkammaren är avlagsnad. Fig. VII visar en tvarsektion efter linjen VII—VH i fig. VI. Fig. VIII visar en tvarsektion efter linjen VIII—VIII i fig. VI. In the drawing, Fig. I is a side view of a burner unit. Fig. II shows on a larger scale a partial longitudinal section through the unit with the air lid and the flap removed. - Fig. III 2— - shows on an even larger scale a longitudinal section through the rear part of the burner. Fig. IV is a view a-v the burner according to Fig. III with a rear protective hood removed. Fig. V shows a longitudinal section along the line V — V in Fig. III. Fig. VI shows on a larger scale a longitudinal section through the front part of the burner according to Fig. II, wherein the outer air chamber is removed. Fig. VII shows a cross section along the line VII-VH in Fig. VI. Fig. VIII shows a cross section along the line VIII-VIII in Fig. VI.

Enligt fig. I Sr brannaren forsedd med en vanlig luftlada 1 och ett motordrivet flaktaggregat med en arm 80 for reglering av ett luftspjall. Flakten levererar luft till luftlhdan 1. En yttre luftkammare 3 av cylindrisk form Sr fast vid luftladans 1 framre ande och uppbar vid sin yttre ande ett koniskt avbojningsorgan 7. Pa den bakre lhdgaveln 8 Sr avtaghart anbragt en huv 6, under vilken regleringsorgan befinna sig. En langsgaende slits 5 i luftladan 1 tjanar for inforande av en b5jlig bransletillforselledning 1. According to Fig. 1, the burner is provided with an ordinary air charge 1 and a motor-driven flat unit with an arm 80 for regulating an air gap. The plane delivers air to the air gap 1. An outer air chamber 3 of cylindrical shape is fixed to the front end of the air charge 1 and carries at its outer end a conical deflection member 7. On the rear end end 8 a hood 6 is arranged, under which regulating means are located. A longitudinal slot 5 in the air barn 1 serves to insert a flexible fuel supply line 1.

Sasom visat i fig. II Sr en med spiralf ormiga styrfenor forsedd ring 9 for luftens forsattande i rotation infast i den yttre luftkammaren 3 nara dennas utloppsande. En inre luftkammare 10 uppbares vid sin framre ande av ringen 9 och Sr forskjutbar i denna. Bakre anden av den inre luftkammarens 10 mantel Sr lostagbart fast pa en fran ett gavelstycke 19 utskjutande ringformig flans 61. En krans av hal 60 Sr anordnad yid den inre luftkammarens 11 bakre dude genom flansen 61. En regleringsring 11 Sr vridbart monterad pa gaveln 19 och forsedd med en krans av lufthal 12, avsedda att i ett lage av ringen 11 befinna sig mitt for lufthalen 60 i Hansen 61 och att, da ringen 11 vrides till ett lage, i vilket halen 12 och 60 aro ur linje med varandra, forhindra luftgenomstromning genom nananda Ett ror 18 uppbares nara sin framre ande av gaveln 19 och Sr forskjutbart i en dari utbildad styrning. Ph rorets 18 framre gangade ande Sr skruvad en hylsa 17, i vilken i sin tur ett finfordelningsmunstycke 16 av bruklig typ Sr inskruvat. Ett hallareorgan 20 Sr fast p5 och uppbares av roret 18. I delta hallareorgan aro ett par startelektroder innefattande ledare 21, 23 och isolatorer 22, 24 (jfr fig. VII) infasta. Dessa elektroder stracka sig aven genom gaveln 19 och fram till finfordelningsmunstyckets 16 yttre ande. Gaveln 19 Sr forskjutbar pa elektroderna. En regleringsstang 29 Sr inskruvad i gaveln 19 vid 32. Deana slang 29 Sr omgiven av ett rorformigt organ 28, vilket Sr forskjutbart i en oppning i hallaren 20. En viss del av en ph regleringsringen 11 anordnad inre flans är utbildad sasom ett kuggsegment 25, vilket stdr i ingrepp med kuggar pa en flans 26, som skjuter ut fran en ph rorets 28 ande fast hylsa 62. Ett par hylsor 27, 31 aro forskjut bara ph roret 28 mellan hallaren 20 och hylsan 62 och en fjader 30 stravar att halla dessa hylsor 27 och 31 isar. As shown in Fig. II, a ring 9 provided with spiral-shaped guide fins for the continuation of the air in rotation is attached to the outer air chamber 3 near its outlet. An inner air chamber 10 is supported at its front end by the ring 9 and is displaceable therein. The rear end of the jacket of the inner air chamber 10 is releasably fixed to an annular flange 6 projecting from a gable piece 19. A ring of hal 60 is arranged at the rear dude of the inner air chamber 11 through the flange 61. A control ring 11 is rotatably mounted on the end 19 and provided with a ring of airway 12, intended to be located in a layer of ring 11 in the middle of airway 60 in Hansen 61 and that, when the ring 11 is rotated to a layer in which tail 12 and 60 are out of line with each other, prevent air flow by nananda A rudder 18 is supported near its front end by the end 19 and is displaceably in a dari trained guide. The front threaded spirit Sr of the tube 18 is screwed into a sleeve 17, in which in turn a atomizing nozzle 16 of conventional type Sr is screwed in. A holder means 20 is fixed to p5 and is supported by the rudder 18. In the delta holder means a pair of starting electrodes comprising conductors 21, 23 and insulators 22, 24 (cf. Fig. VII) are fastened. These electrodes also extend through the end 19 and up to the outer spirit of the atomizing nozzle 16. The end 19 is displaceable on the electrodes. A control rod 29 is screwed into the end 19 at 32. The hose 29 is surrounded by a tubular member 28, which is displaceable in an opening in the holder 20. A certain part of an inner flange arranged in a pH control ring 11 is formed as a tooth segment 25. which engages teeth on a flange 26 projecting from the end of a fixed sleeve 62 of the tube 28. A pair of sleeves 27, 31 are offset only of the tube 28 between the holder 20 and the sleeve 62 and a spring 30 struts to hold them. sleeves 27 and 31 ice.

Av fig. VI och VIII framgar, att ett koniskt avbojningsorgan 13 ar infast i framre anden av den inre luftkammaren 10. Na.got bakom avbojningsorganet 13 finnes ytterligare ett koniskt avbajningsorgan 14, -vilket likaledes dr infast i den inre luftkammaren 10 och forsett med en krans av lufthal 15. From Figs. VI and VIII it can be seen that a conical deflection member 13 is attached to the front spirit of the inner air chamber 10. Slightly behind the deflection member 13 there is another conical deflection member 14, which likewise is fitted in the inner air chamber 10 and provided with a wreath of air hall 15.

Avbajningsorganen 7 och 13 begransa en ringformig luftutstromningskammare, vilken tjanstgor sasom yttre luftkalla for den zon, vilken blandningen av luften och branslet sker. Darvid kan aybojningsorganet 7 anses utgora ett yttre luftmunstycke. PS liknande salt tillfores luft till blandningszonen via avbojningsorganen 13 och 14, och dessa organ kunna anses utgora ett inre luftmunstycke. The deflection means 7 and 13 define an annular air outflow chamber, which serves as an external air source for the zone in which the mixing of the air and the fuel takes place. In this case, the bending member 7 can be considered to constitute an outer air nozzle. PS-like salt, air is supplied to the mixing zone via the deflection means 13 and 14, and these means can be considered to constitute an inner air nozzle.

I fig. III, IV och V visas konstruktionen av brannaraggregatets bakre del. I ett gjutet block 35 Sr anordnad en branslekanal 36, som slutar i en gangad urborrning 65, i vilken nOnets 18 ande Sr inskruvad. I en liknande gangad urborrning 66 i branslekanalens and-- ra ande är den bojliga bransletillf5rselledningens 4 (fig. I) ande inskruvad. Huvudet till en bult 46 Sr flat vridbart infast i blocket 35. Bulten 46 stracker sig genom ett gangat hal 44 i den bakre gaveln 8. En regleringsratt 45 Sr fast ph bultens utskjutande ande och tjanar for bultens vridning. En rund skala 67 Sr fast p5. regleringsratten 45. En tapp 47 med gradering Sr infast i gaveln strax invid skalan 67. Figs. III, IV and V show the construction of the rear part of the burner unit. Arranged in a cast block 35 Sr is an industry channel 36, which ends in a passageed bore 65, in which the spirit Sr of the nOnet 18 is screwed. In a similar threaded bore 66 in the other end of the fuel duct, the duct of the flexible fuel supply line 4 (Fig. I) is screwed in. The head of a bolt 46 is flatly rotatably attached to the block 35. The bolt 46 extends through a perforated slide 44 in the rear end 8. A control knob 45 is fixed to the projecting spirit of the bolt and serves to rotate the bolt. A round scale 67 Sr fixed p5. adjustment knob 45. A pin 47 with graduation Sr is attached to the end just next to the scale 67.

Pa rorets 28 inre ande dr anbragt en hylsa 37, soin Sr sakrad medelst en skruv 38. Hylsans 37 mot gaveln 8 vanda Slide slutar i ett par rektangulara kilar 69 och 70, vilka ingripa i spar i ett ror 41 och darmed bilda en koppling. Roret 41 stracker sig genom blocket 35 och den bakre gaveln 8 och Sr -vridhart anordnat i dessa organ. En forskjutning av roret 41 i langdriktningen i blocket 35 forhindras av tva hylsor 39 och 42, som aro fasta ph roret ifraga medelst skruvar 40 och och 75. Regleringsstangen 29 stracker genom roren 28 och 41 och Sr vridbar i dessa. En ratt 43 med skala 71 Sr fast p5 den ur roret 41 utskjutande bakre linden av stangen 29 ooh tjanar for dennas vridning. On the inner spirit of the tube 28 there is mounted a sleeve 37, so that it is secured by means of a screw 38. The sleeve 37 against the end wall 8 slides end in a pair of rectangular wedges 69 and 70, which engage in grooves in a tube 41 and thereby form a coupling. The rudder 41 extends through the block 35 and the rear end 8 and Sr-rotating resin arranged in these members. A displacement of the tube 41 in the longitudinal direction in the block 35 is prevented by two sleeves 39 and 42, which are fixed to the tube by means of screws 40 and and 75. The adjusting rod 29 extends through the tubes 28 and 41 and is rotatable therein. A steering wheel 43 with scale 71 is attached to the rear spindle of the rod 29 projecting from the tube 41 and serves to rotate it.

Hylsan 42 Sr forsedd med en arm 73, vid vars yttre ande Sr fast en. stang 51, vilken stracker sig genom en bagformig slits 20 i den bakre gaveln 8. En knapp 49 Sr paskruvad stangens 51 ande och bildar vederlag for en mot gaveln 8 anliggande fjader 53. Sleeve 42 Sr provided with an arm 73, at the outer spirit of which Sr fixed one. rod 51, which extends through a rear-shaped slot 20 in the rear end 8. A button 49 is screwed onto the spirit of the rod 51 and forms a consideration for a spring 53 abutting against the end 8.

Vid drift a-v eii tryckstralbrannare tillfores branslet normalt med konstant hastighet och tryck finfordelningsmunstycket, varvid en-: forderliga regleringar foretagas ifraga om lufttillfOrseln. Vid inreglering av brannaren for ernaende av mojligast gynnsamma for-- — --3 branning komma enligt foreliggande uppfinning foljande faktorer i betraktande. During operation of a pressure jet burner, the fuel is normally supplied at a constant speed and pressure to the atomization nozzle, whereby one: - necessary adjustments are made regarding the air supply. When adjusting the burner for the purpose of obtaining the most favorable for burning according to the present invention, the following factors come into consideration.

Den brannaren tillforda luftmangden. That burner supply the amount of air.

Forhallandet mellan de yttre och inre luftmunstyckena tillforda luftmangderna. The ratio between the outer and inner air nozzles supply the air volumes.

Laget av finfordelningsmunstycket i forhallande till det yttre luftmunstycket. The layer of the atomizing nozzle in relation to the outer air nozzle.

Laget av finfordelningsmunstycket i tSr- hdllande till det hire luftmunstyeket. Made of the atomizing nozzle in relation to the hire air nozzle.

Laget av det yttre luftmunstycket i f5rhallande till det inre luftmunstycket. The layer of the outer air nozzle in relation to the inner air nozzle.

Dessa faktorer kunna installas sasom i det fOljande beskrives. These factors can be installed as described below.

Den brannaren tillfOrda luftmangden regleras pa brukligt satt, i det att spjallet i den motordrivna flaktens luftintag installes formedelst armen 80. The amount of air supplied to the burner is regulated in the usual way, in that the damper in the air intake of the motorized vane is installed by means of the arm 80.

Genom vridning av ratten 45 andras blockets 35 lage relativt luftladans 1 fasta bakre gavel 8. Om ratten 45 vrides motsols, skruvas bulten 46 in i gaveln 8 i riktning mot huven Blocket 35 jamte den genom slitsen 5 sig strackande b5jliga bransletillforselledningen 4 forskjutas salunda i riktning mot namnda gavel 8. I denna rorelse deltaga alien roret 18 med finfordelningsmunstycket 16 roret 41 (vilket ar forskjutbart i gaveln 8) samt r8ret 20 med stingen 29, soul ar fOrbunden med gaveln 19, vilken i sin tur uppbar den inn luftkammaren 10. Enfir den yttre luftkammaren 3 ar fast anordnad relativt luftladan 1 och den inre luftkammaren 10 ar f5rskjutbar i den med styrfenor forsedda ringen 9 kommer en vridning av ratten. 45 att samtidigt Andra Liget av bide finfordelningsmunstycket och den inre luftkammaren relativt den yttre luftkammaren. By turning the knob 45, the lower rear end 8 of the block 35 is made relative to the air charge 1. If the knob 45 is turned counterclockwise, the bolt 46 is screwed into the end 8 in the direction of the hood. The block 35 and the flexible fuel supply 4 extending through the slot are thus displaced in the direction towards the said end 8. In this movement, the alien tube 18 with the atomizing nozzle 16 participate the tube 41 (which is displaceable in the end 8) and the tube 20 with the stitches 29, soul is connected to the end 19, which in turn carried it into the air chamber 10. Enfir the outer air chamber 3 is fixedly arranged relative to the air charge 1 and the inner air chamber 10 is displaceable in the ring 9 provided with guide fins there is a rotation of the steering wheel. 45 to simultaneously the Second Layer of the bide atomization nozzle and the inner air chamber relative to the outer air chamber.

Genom att farskjuta knappen 49 i den bagformiga slitsen 50 kan man i viss utstrackning vrida hylsan 42 under formedling av armen 73 och stangen 51. Eftersom hylsan 42 ar fast pa roret 41, sker en motsvarande vridning av detta ror saint over kopplingen 69 70 en motsvarande vridning av roret 28. Den roret 28 fasta hylsan 62 med flansen 2e meddelar motsvarande vridningsrorelse till kuggsektionen 25, sa att regleringsringen 11 vrides och lufthalen 60 och 12 installas relativt varandra. Dessa Ml tjana sasom primar forbindelse mellan den yttre luftkammarens 3 inre och den inre luftkammaren 10. Knappen 49 tjanar salunda for regleringen av forhallandet mellan de yttre och inre luftmunstyckena tillforda luftmangderna. By sliding the knob 49 in the rear-shaped slot 50, the sleeve 42 can to a certain extent be rotated while forming the arm 73 and the rod 51. Since the sleeve 42 is fixed to the tube 41, a corresponding rotation of this tube takes place over the coupling 69 70 a corresponding rotation of the rudder 28. The fixed sleeve 62 of the rudder 28 with the flange 2e communicates the corresponding rotational movement to the tooth section 25, so that the control ring 11 is rotated and the air holes 60 and 12 are installed relative to each other. These M1 serve as a primary connection between the interior of the outer air chamber 3 and the inner air chamber 10. The button 49 thus serves to regulate the ratio between the outer and inner air nozzles supplying the air volumes.

Fjadern 53 (fig. V) tjanar sasom friktionsorgan mellan luftla.dans 1 bakre gavel 8 orb knappen 49, sa att den sistnamndas install-fling icke oavsiktligt rubbas. Friktionen kan regleras genom att knappen 49 skruvas Baer eller mindre langt in pa stangen 51, varigenom fjaderspanningen andras. The spring 53 (Fig. V) serves as a friction means between the air end dance 1 rear end 8 orb button 49, so that the latter installation is not inadvertently disturbed. The friction can be regulated by screwing the knob 49 Bore or less far into the rod 51, whereby the spring tension is changed.

En vridning av regleringsratten 43 medf Or en vridning av stangen 29 i roren 28 och 41 och foljaktligen en f8rskjutning av gaveln 19 genom. gangifirbindelsen -vid 32. Enar den den inre luftkammaren 10 uppbarande gaveln 19 ar fritt forskjutbar pi roret 18, ager en motsvarande forskjutning av det inre luftmunstycket relativt finfordelningsmunstycket 16 rum. Enar vidare den inre luftkammaren ar forskjutbar i den med styrfenor fOrsedda ringen 9 installes ;liven den inre luftkammarens lage relativt den yttre luftkammaren 3. Den forskjutning av roret 28, som avenledes ager rum vid denna regtering, upptages av kopplingen 69, 70, sa att roret 41 icke behOver fOrskjutas. Den mellan den pa, rOret 18. fasta hallaren 20 och gaveln 19 anbragta fjadem 30 tjanar for att astadkomma tillracklig friktion i gangforhindelsen 32 mellan stangen. 29 och gaveln. 19 for att installningen icke skull oavsiktligt rubbas. A rotation of the control knob 43 entails a rotation of the rod 29 in the tubes 28 and 41 and consequently a displacement of the end 19 through. the gangway connection at 32. If the end 19 carrying the inner air chamber 10 is freely displaceable in the tube 18, a corresponding displacement of the inner air nozzle relative to the atomizing nozzle 16 takes place. Furthermore, if the inner air chamber is displaceable in the ring 9 provided with guide fins, the inner air chamber layer relative to the outer air chamber 3 is installed. The displacement of the tube 28, which otherwise takes place during this alignment, is occupied by the coupling 69, 70, so that the rudder 41 does not need to be displaced. The spring 30 arranged between the holder 20 fixed to the tube 18 and the end wall 19 serves to provide sufficient friction in the passage barrier 32 between the rod. 29 and the gable. 19 so that the installation is not accidentally disturbed.

Brannaren startas lampligen pa foljande att. Ett finfordelningsmunstycke av onskad kapacitet och spridningsvinkel utva.ljes och anbringas pa rorets 18 yttre dude. Det hire luftmunstycket installes darefter i sitt bakre age med hjalp av ratten 43. Harigenom fOres det inre luftmunstycket till sitt bakre lage relativt finfordelningsmunstycket. Flaktspjallet oppnas ungefar till Ire fjardedelar. The burner is suitably started on the following that. An atomizing nozzle of the desired capacity and spreading angle is selected and applied to the outer dude of the tube 18. The hire air nozzle is then installed in its rear age with the aid of the knob 43. As a result, the inner air nozzle is moved to its rear layer relative to the atomizing nozzle. Flaktspjallet opens approximately to Ire quarters.

Ratten 45 installes nu sa, att finfordelningsmunstycket blir belaget ungefar vid mitten av sin riirelsehana relativt det yttre luftmunstycket. Knappen 49 installes sO, att storsta mojliga luftmangd kan instromma I. den inre luftkammaren 10 genom lufthalen_ 12 och 60. The knob 45 is now installed so that the atomizing nozzle is coated approximately at the center of its movement tap relative to the outer air nozzle. Button 49 is installed so that the largest possible amount of air can flow into the inner air chamber 10 through the air vents 12 and 60.

Nar dessa installningar foretagits tillforas bransle och luft till brannaren, och branslet. antandes genwu gnistor Iran den elektriska. tandanordningen. Bransle tillfores finfordelningsmunstycket -vid konstant tryck, vanligen ungefar 7 kg/cm2, i andamal att tillforsakra. konstant bransleutstromning genom munstyc-- ket och likformig fordelning. Om man pa sjalva ligan kan se, att flakten tiff& mei-- luft an som fordras for effektiv fOrbranningay det i forbranningszonen inforda branslet, vrider man ratter' 45 sa, att den inre luftkarn-- maren 10 och finfOrdelningsmunstycket 16 forskjutas framat till dess att lagan borjar sota pa grund av minskad tillfOrsel av luft frail det yttre munstycket, di framre delen av det inre luftinunstycket narmar sig avbEijningsorganet 7 i det yttre luftrnunstycket. Den inre luftkammaren fores darefter nagot bakat, till dess att lagan icke langre sotar. Effektiviteten i forbranningen kan faststallas genom analys av rokgaserna i Orsat-apparat eller liknande, i vilken koldioxidhalten i fokgaserna faststalles. Om koldioxidhalten icke ar tillrackligt hog, strypes flaktspjallet nagot medelst armen 80, sa att det statiska trycket I den yttre luftkammaren 3 minskas, yard-ter forbranningens effektivitet iter undersokes visuellt och genom roligasanalys. Di en ytterligare okning av koldioxidhalten 1 rok-- — — gaserna icke langre kan ernas genom install-fling av flaktspjallet och ratten 45, minskas luftstrammen till den inre luftkammaren genom installning av knappen 49. Da maximal koldioxidhalt ernatts genom denna reglering, som medfor att lagan narmas mot finfordelningsmunstycket 16, regleras ratten 43 sa, att slutlig gynnsammaste forbranning faststalld genom koldioxidhalten hos rokgaserna uppnas. When these installations have been made, fuel and air are supplied to the burner, and the fuel. ignited genwu sparks Iran the electric. the dental device. Fuel is fed to the atomizing nozzle - at constant pressure, usually about 7 kg / cm2, in the spirit to be ensured. constant fuel outflow through the nozzle and uniform distribution. If it can be seen on the league itself that the air flow required for efficient combustion of the fuel introduced into the combustion zone is turned knobs 45 so that the inner air core 10 and the atomizing nozzle 16 are displaced until the law begins to soot due to reduced supply of air from the outer nozzle, in which the front part of the inner air nozzle approaches the deflection means 7 in the outer air nozzle. The inner air chamber is then slightly baked, until the layer no longer soots. The efficiency of the combustion can be determined by analysis of the flue gases in an Orsat apparatus or the like, in which the carbon dioxide content of the flue gases is determined. If the carbon dioxide content is not sufficiently high, the flap slat is throttled slightly by means of the arm 80, so that the static pressure in the outer air chamber 3 is reduced, the yards of the combustion efficiency are visually examined and by fun analysis. In a further increase in the carbon dioxide content of the flue gases can no longer be obtained by installing the flat damper and the knob 45, the air tension to the inner air chamber is reduced by installing the button 49. Since the maximum carbon dioxide content has been reached by this control, which means that the law is approached against the atomizing nozzle 16, the knob 43 is regulated so that the final most favorable combustion determined by the carbon dioxide content of the flue gases is achieved.

Del har vid anvandande av branslenumstycken av relativt liten kapacitet visat sig fordelaktigt att arbeta med det inre luftmunstycket rat langt bakom branslemunstyckets framre ande, medan vid storre branslemunstycken det inre luftmunstycket med fordel kan foras langre framat. When using relatively small capacity fuel nozzles, it has proved advantageous to work with the internal air nozzle far behind the front nozzle of the fuel nozzle, while with larger fuel nozzles the internal air nozzle can advantageously be moved further forward.

Claims

Patent claim:

Burner for liquid fuel, comprising an outer air chamber open at one end, an air chamber installable in this outer air chamber and an air chamber open at one end and a branch nozzle arranged in its longitudinal air chamber, can be drawn & ray, that it Or provided with partly a frail the outer air chamber (3) outside actuable device (29, 43) for the installation of the lure air chamber (10) and the branch nozzle (16) relative to each other in the longitudinal direction, partly a independent and frau thereof the outer air chamber of the outer air chamber (45, 46) has a simultaneous installation of the inner air chamber and the branch nozzle in relation to the outer air chamber, and finally an Iran of the outer air chamber of the outer air chamber which can be actuated (11, 25, 26, 28, 41, 49) for regulating an air opening (60) present in the inner air chamber for supplying air to this chamber from the outer air chamber .

Burner according to claim 1, characterized in that the device (45, 46) for simultaneous filling of the inner air chamber (10) and the fuel nozzle (16) is connected to the rear wall (19) of the inner air chamber and extends backwards out through the outer rear wall (8) of the air chamber (3).

Burner according to claim 1, characterized in that a. with hit! (12) provided ring (11) Or rotatably mounted on the inner air chamber (10), water-hydrated male in the ring Oro intended to co-operate with the corresponding hall (60) in the inner air chamber, and that a device serving for the rotation of the ring (25, 26, 28, 41, 49) extends backwards through the rear wall (8) of the outer air chamber (3).

4. A burner according to claim 1, characterized in that the outer air chamber (3) is provided with a device (9) for the continuation of the air in rotating motion, and that the inner air chamber (10) is displaceably controlled in said device,

Burner according to claim 1, characterized in that at the open end of the inner air chamber (10), the air deflecting means (13, 14) is arranged firmly on board.