METHOD FOR SUPPLYING AMMONIA IN DENITRATION DEVICE
PROBLEM TO BE SOLVED: To rapidly achieve the homogenization by diffusion of ammonia into an exhaust gas by supplying ammonia in such a state that the flow of the gas is more easily diffusable without regulating the flow of the exhaust gas uniformly. SOLUTION: A guide blade 52 made up of an inclined...
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| creator | SHIMIZU TORU AZUMA EMIKO |
| description | PROBLEM TO BE SOLVED: To rapidly achieve the homogenization by diffusion of ammonia into an exhaust gas by supplying ammonia in such a state that the flow of the gas is more easily diffusable without regulating the flow of the exhaust gas uniformly. SOLUTION: A guide blade 52 made up of an inclined long-size plain plate is provided on each of the inner faces of four walls on a duct 51 for generating a swirl throughout the duct 51. The size of the blade 52 is decided depending upon the intensity of the swirl to be set. In addition, the length L of the blade 52 in the duct 51 is almost 1/2 to 1 time the width A or the height of the duct 51 and the swirl can be efficiently generated, when the width H of the blade 52 is 20% or more as much as the width A or the height of the duct 51. Further, the width H of the guide blade 52 can be extended as far as the center of the duct 51. The angle of attack θ of the guide blade 52 is set within a variable range in accordance with the intensity of the swirl. When it is desired that the maximum flow velocity W of the swirl be obtained for the flow velocity U of an exhaust gas in the main current direction, the equation θ=tan (W/U) is to be satisfied. |
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SOLUTION: A guide blade 52 made up of an inclined long-size plain plate is provided on each of the inner faces of four walls on a duct 51 for generating a swirl throughout the duct 51. The size of the blade 52 is decided depending upon the intensity of the swirl to be set. In addition, the length L of the blade 52 in the duct 51 is almost 1/2 to 1 time the width A or the height of the duct 51 and the swirl can be efficiently generated, when the width H of the blade 52 is 20% or more as much as the width A or the height of the duct 51. Further, the width H of the guide blade 52 can be extended as far as the center of the duct 51. The angle of attack θ of the guide blade 52 is set within a variable range in accordance with the intensity of the swirl. When it is desired that the maximum flow velocity W of the swirl be obtained for the flow velocity U of an exhaust gas in the main current direction, the equation θ=tan<-1> (W/U) is to be satisfied.</description><edition>6</edition><language>eng</language><subject>MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING</subject><creationdate>1999</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=19990202&DB=EPODOC&CC=JP&NR=H1128337A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990202&DB=EPODOC&CC=JP&NR=H1128337A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHIMIZU TORU</creatorcontrib><creatorcontrib>AZUMA EMIKO</creatorcontrib><title>METHOD FOR SUPPLYING AMMONIA IN DENITRATION DEVICE</title><description>PROBLEM TO BE SOLVED: To rapidly achieve the homogenization by diffusion of ammonia into an exhaust gas by supplying ammonia in such a state that the flow of the gas is more easily diffusable without regulating the flow of the exhaust gas uniformly. SOLUTION: A guide blade 52 made up of an inclined long-size plain plate is provided on each of the inner faces of four walls on a duct 51 for generating a swirl throughout the duct 51. The size of the blade 52 is decided depending upon the intensity of the swirl to be set. In addition, the length L of the blade 52 in the duct 51 is almost 1/2 to 1 time the width A or the height of the duct 51 and the swirl can be efficiently generated, when the width H of the blade 52 is 20% or more as much as the width A or the height of the duct 51. Further, the width H of the guide blade 52 can be extended as far as the center of the duct 51. The angle of attack θ of the guide blade 52 is set within a variable range in accordance with the intensity of the swirl. When it is desired that the maximum flow velocity W of the swirl be obtained for the flow velocity U of an exhaust gas in the main current direction, the equation θ=tan<-1> (W/U) is to be satisfied.</description><subject>MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDydQ3x8HdRcPMPUggODQjwifT0c1dw9PX19_N0VPD0U3Bx9fMMCXIM8fQHscM8nV15GFjTEnOKU3mhNDeDgptriLOHbmpBfnxqcUFicmpeakm8V4CHoaGRhbGxuaMxEUoAOIUmqA</recordid><startdate>19990202</startdate><enddate>19990202</enddate><creator>SHIMIZU TORU</creator><creator>AZUMA EMIKO</creator><scope>EVB</scope></search><sort><creationdate>19990202</creationdate><title>METHOD FOR SUPPLYING AMMONIA IN DENITRATION DEVICE</title><author>SHIMIZU TORU ; AZUMA EMIKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH1128337A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SHIMIZU TORU</creatorcontrib><creatorcontrib>AZUMA EMIKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHIMIZU TORU</au><au>AZUMA EMIKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR SUPPLYING AMMONIA IN DENITRATION DEVICE</title><date>1999-02-02</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To rapidly achieve the homogenization by diffusion of ammonia into an exhaust gas by supplying ammonia in such a state that the flow of the gas is more easily diffusable without regulating the flow of the exhaust gas uniformly. SOLUTION: A guide blade 52 made up of an inclined long-size plain plate is provided on each of the inner faces of four walls on a duct 51 for generating a swirl throughout the duct 51. The size of the blade 52 is decided depending upon the intensity of the swirl to be set. In addition, the length L of the blade 52 in the duct 51 is almost 1/2 to 1 time the width A or the height of the duct 51 and the swirl can be efficiently generated, when the width H of the blade 52 is 20% or more as much as the width A or the height of the duct 51. Further, the width H of the guide blade 52 can be extended as far as the center of the duct 51. The angle of attack θ of the guide blade 52 is set within a variable range in accordance with the intensity of the swirl. When it is desired that the maximum flow velocity W of the swirl be obtained for the flow velocity U of an exhaust gas in the main current direction, the equation θ=tan<-1> (W/U) is to be satisfied.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING |
| title | METHOD FOR SUPPLYING AMMONIA IN DENITRATION DEVICE |
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