SOLID-FUEL BURNER
Provided is a solid-fuel burner comprising: a venturi 7 having a constricting portion where the transverse cross section of a fuel passage is reduced in a fuel nozzle 8 for supplying a solid fuel; and a fuel concentrator 6 for diverting the flow in the nozzle 8 outward in the wake side of the ventur...
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| creator | TADAKUMA, SATOSHI OCHI, KENICHI SHIMOGORI, MIKI OKAZAKI, HIROFUMI WAKAMATSU, HITOSHI OHYATSU, NORIYUKI KIYAMA, KENJI MINE, TOSHIHIKO KURAMASHI, KOJI OCHI, YUSUKE |
| description | Provided is a solid-fuel burner comprising: a venturi 7 having a constricting portion where the transverse cross section of a fuel passage is reduced in a fuel nozzle 8 for supplying a solid fuel; and a fuel concentrator 6 for diverting the flow in the nozzle 8 outward in the wake side of the venturi 7, and the nozzle 8 is formed so that (a) the aperture in the vicinity of an opening portion 32 of a boiler furnace wall surface 18 has a flat shape, (b) cross-sectional shape thereof orthogonal to a nozzle center axis C on the outer peripheral wall of the nozzle 8 is circular in a transverse cross section up to the constricting portion of the venturi 7, (c) a portion that has a gradually increasing degree of flatness is provided between the constricting portion and the opening portion 32, and (d) the flat shape in the opening portion 32 is where the degree of flatness reaches a maximum. There is obtained a solid-fuel burner in which a fuel concentration sufficient to ignite the fuel and stabilize the flames thereof is achieved in the outlet of the nozzle 8 while uniformity of fuel concentration in the circumferential direction is maintained, and a low-NOx concentration can be achieved in the fuel exhaust gas. |
| format | Patent |
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There is obtained a solid-fuel burner in which a fuel concentration sufficient to ignite the fuel and stabilize the flames thereof is achieved in the outlet of the nozzle 8 while uniformity of fuel concentration in the circumferential direction is maintained, and a low-NOx concentration can be achieved in the fuel exhaust gas.</description><language>eng ; fre ; ger</language><subject>AIR ; AIR SUPPLY ; BLASTING ; BURNERS ; COMBUSTION APPARATUS ; COMBUSTION PROCESSES ; DRAUGHT-INDUCING ; FEEDING FUEL TO COMBUSTION APPARATUS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN ; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS ; WEAPONS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150624&DB=EPODOC&CC=EP&NR=2886956A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150624&DB=EPODOC&CC=EP&NR=2886956A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TADAKUMA, SATOSHI</creatorcontrib><creatorcontrib>OCHI, KENICHI</creatorcontrib><creatorcontrib>SHIMOGORI, MIKI</creatorcontrib><creatorcontrib>OKAZAKI, HIROFUMI</creatorcontrib><creatorcontrib>WAKAMATSU, HITOSHI</creatorcontrib><creatorcontrib>OHYATSU, NORIYUKI</creatorcontrib><creatorcontrib>KIYAMA, KENJI</creatorcontrib><creatorcontrib>MINE, TOSHIHIKO</creatorcontrib><creatorcontrib>KURAMASHI, KOJI</creatorcontrib><creatorcontrib>OCHI, YUSUKE</creatorcontrib><title>SOLID-FUEL BURNER</title><description>Provided is a solid-fuel burner comprising: a venturi 7 having a constricting portion where the transverse cross section of a fuel passage is reduced in a fuel nozzle 8 for supplying a solid fuel; and a fuel concentrator 6 for diverting the flow in the nozzle 8 outward in the wake side of the venturi 7, and the nozzle 8 is formed so that (a) the aperture in the vicinity of an opening portion 32 of a boiler furnace wall surface 18 has a flat shape, (b) cross-sectional shape thereof orthogonal to a nozzle center axis C on the outer peripheral wall of the nozzle 8 is circular in a transverse cross section up to the constricting portion of the venturi 7, (c) a portion that has a gradually increasing degree of flatness is provided between the constricting portion and the opening portion 32, and (d) the flat shape in the opening portion 32 is where the degree of flatness reaches a maximum. There is obtained a solid-fuel burner in which a fuel concentration sufficient to ignite the fuel and stabilize the flames thereof is achieved in the outlet of the nozzle 8 while uniformity of fuel concentration in the circumferential direction is maintained, and a low-NOx concentration can be achieved in the fuel exhaust gas.</description><subject>AIR</subject><subject>AIR SUPPLY</subject><subject>BLASTING</subject><subject>BURNERS</subject><subject>COMBUSTION APPARATUS</subject><subject>COMBUSTION PROCESSES</subject><subject>DRAUGHT-INDUCING</subject><subject>FEEDING FUEL TO COMBUSTION APPARATUS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN</subject><subject>SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAM9vfxdNF1C3X1UXAKDfJzDeJhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAUYWFmaWpmaOhsZEKAEA56wdeg</recordid><startdate>20150624</startdate><enddate>20150624</enddate><creator>TADAKUMA, SATOSHI</creator><creator>OCHI, KENICHI</creator><creator>SHIMOGORI, MIKI</creator><creator>OKAZAKI, HIROFUMI</creator><creator>WAKAMATSU, HITOSHI</creator><creator>OHYATSU, NORIYUKI</creator><creator>KIYAMA, KENJI</creator><creator>MINE, TOSHIHIKO</creator><creator>KURAMASHI, KOJI</creator><creator>OCHI, YUSUKE</creator><scope>EVB</scope></search><sort><creationdate>20150624</creationdate><title>SOLID-FUEL BURNER</title><author>TADAKUMA, SATOSHI ; OCHI, KENICHI ; SHIMOGORI, MIKI ; OKAZAKI, HIROFUMI ; WAKAMATSU, HITOSHI ; OHYATSU, NORIYUKI ; KIYAMA, KENJI ; MINE, TOSHIHIKO ; KURAMASHI, KOJI ; OCHI, YUSUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2886956A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2015</creationdate><topic>AIR</topic><topic>AIR SUPPLY</topic><topic>BLASTING</topic><topic>BURNERS</topic><topic>COMBUSTION APPARATUS</topic><topic>COMBUSTION PROCESSES</topic><topic>DRAUGHT-INDUCING</topic><topic>FEEDING FUEL TO COMBUSTION APPARATUS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN</topic><topic>SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>TADAKUMA, SATOSHI</creatorcontrib><creatorcontrib>OCHI, KENICHI</creatorcontrib><creatorcontrib>SHIMOGORI, MIKI</creatorcontrib><creatorcontrib>OKAZAKI, HIROFUMI</creatorcontrib><creatorcontrib>WAKAMATSU, HITOSHI</creatorcontrib><creatorcontrib>OHYATSU, NORIYUKI</creatorcontrib><creatorcontrib>KIYAMA, KENJI</creatorcontrib><creatorcontrib>MINE, TOSHIHIKO</creatorcontrib><creatorcontrib>KURAMASHI, KOJI</creatorcontrib><creatorcontrib>OCHI, YUSUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TADAKUMA, SATOSHI</au><au>OCHI, KENICHI</au><au>SHIMOGORI, MIKI</au><au>OKAZAKI, HIROFUMI</au><au>WAKAMATSU, HITOSHI</au><au>OHYATSU, NORIYUKI</au><au>KIYAMA, KENJI</au><au>MINE, TOSHIHIKO</au><au>KURAMASHI, KOJI</au><au>OCHI, YUSUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SOLID-FUEL BURNER</title><date>2015-06-24</date><risdate>2015</risdate><abstract>Provided is a solid-fuel burner comprising: a venturi 7 having a constricting portion where the transverse cross section of a fuel passage is reduced in a fuel nozzle 8 for supplying a solid fuel; and a fuel concentrator 6 for diverting the flow in the nozzle 8 outward in the wake side of the venturi 7, and the nozzle 8 is formed so that (a) the aperture in the vicinity of an opening portion 32 of a boiler furnace wall surface 18 has a flat shape, (b) cross-sectional shape thereof orthogonal to a nozzle center axis C on the outer peripheral wall of the nozzle 8 is circular in a transverse cross section up to the constricting portion of the venturi 7, (c) a portion that has a gradually increasing degree of flatness is provided between the constricting portion and the opening portion 32, and (d) the flat shape in the opening portion 32 is where the degree of flatness reaches a maximum. There is obtained a solid-fuel burner in which a fuel concentration sufficient to ignite the fuel and stabilize the flames thereof is achieved in the outlet of the nozzle 8 while uniformity of fuel concentration in the circumferential direction is maintained, and a low-NOx concentration can be achieved in the fuel exhaust gas.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | AIR AIR SUPPLY BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION PROCESSES DRAUGHT-INDUCING FEEDING FUEL TO COMBUSTION APPARATUS HEATING LIGHTING MECHANICAL ENGINEERING METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS WEAPONS |
| title | SOLID-FUEL BURNER |
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