{"id":94,"date":"2016-12-13T12:37:49","date_gmt":"2016-12-13T10:37:49","guid":{"rendered":"http:\/\/www.teknoconvey.com\/blog\/?p=94"},"modified":"2024-11-20T23:29:52","modified_gmt":"2024-11-20T20:29:52","slug":"pnomatik-tasima-sistemleri-hava-hizi","status":"publish","type":"post","link":"http:\/\/www.teknoconvey.com\/blog\/2016\/12\/13\/pnomatik-tasima-sistemleri-hava-hizi\/","title":{"rendered":"PN\u00d6MAT\u0130K TA\u015eIMA S\u0130STEMLER\u0130 HAVA HIZI"},"content":{"rendered":"

Seyrek faz pn\u00f6matik ta\u015f\u0131ma<\/a> i\u00e7in nispeten y\u00fcksek bir ta\u015f\u0131ma havas\u0131 h\u0131z\u0131 muhafaza edilmelidir. Bu, tipik olarak ince bir toz i\u00e7in 12 m \/ saniye, 16 m \/ saniye gran\u00fcl malzeme i\u00e7in ayr\u0131ca \u00a0ve daha b\u00fcy\u00fck par\u00e7ac\u0131klar ve daha y\u00fcksek yo\u011funluklu malzemeler i\u00e7in \u00f6te pn\u00f6matik ta\u015f\u0131ma<\/strong> hava uygulanmal\u0131d\u0131r. \u00a0Yo\u011fun faz pn\u00f6matik ta\u015f\u0131ma da<\/strong><\/a> ise, hava h\u0131zlar\u0131 3 m \/ saniyeye kadar d\u00fc\u015febilir ve baz\u0131 durumlarda daha d\u00fc\u015f\u00fck olabilir. Bu hareketli yatakl\u0131 ve t\u0131pa\u00e7 tipi yo\u011fun faz pn\u00f6matik ta\u015f\u0131ma sistemleri<\/strong>\u00a0i\u00e7in ge\u00e7erlidir. Bu hava h\u0131z\u0131 de\u011ferleri, hat giri\u015fi hava h\u0131z\u0131 de\u011ferlerini anlat\u0131r. Hava s\u0131k\u0131\u015ft\u0131r\u0131labilir ve b\u00f6ylece malzeme bir boru hatt\u0131n\u0131n uzunlu\u011fu boyunca ta\u015f\u0131n\u0131rken, bas\u0131n\u00e7 azalacak ve hacimsel ak\u0131\u015f h\u0131z\u0131 da artacakt\u0131r.<\/p>\n

Durum, temel termodinamik denklem ile modellenebilir:<\/p>\n

P1 V1 \/ T1 = \u00a0P2 V2 \/ T2\u00a0 \u00a0<\/strong><\/p>\n

Burada p havan\u0131n bas\u0131nc\u0131d\u0131r (kN \/ m2\u00c2 abs),<\/p>\n

V, Hava debisi (m3 \/ saniye),<\/p>\n

T, hava s\u0131cakl\u0131\u011f\u0131<\/p>\n

(K) ve alt ve \u00fcst 1’ler, boru hatt\u0131 boyunca farkl\u0131 noktalar ile ilgilidir.<\/p>\n

S\u0131cakl\u0131k boru hatt\u0131n\u0131n uzunlu\u011fu boyunca sabit kabul edilebilirse<\/p>\n

Dolay\u0131s\u0131yla, bas\u0131n\u00e7, malzeme besleme noktas\u0131nda bir pozitif bas\u0131n\u00e7ta bir bar g\u00f6stergesi. Atmosfer bas\u0131nc\u0131na de\u015farjl\u0131 olarak, bir katlama hava ak\u0131\u015f h\u0131z\u0131n\u0131n ve dolay\u0131s\u0131yla tek bir boru hatt\u0131ndaki h\u0131z\u0131n \u00f6l\u00e7\u00fclmesini sa\u011flar. Ta\u015f\u0131y\u0131c\u0131 hat giri\u015f havas\u0131 h\u0131z\u0131, boru hatt\u0131n\u0131n ba\u015flang\u0131c\u0131nda 20 m \/ saniye idi; yakla\u015f\u0131k olarak \u00e7\u0131k\u0131\u015fta 40 m \/ saniye. Bu nedenle, herhangi bir tek delikli boru hatt\u0131ndaki h\u0131z her zaman malzeme besleme noktas\u0131nda asgari d\u00fczeyde olmal\u0131d\u0131r.<\/p>\n

Her iki bas\u0131n\u00e7 ve s\u0131cakl\u0131\u011f\u0131n mutlak de\u011ferleri bu denklemlerde kullan\u0131lmal\u0131d\u0131r. Bu h\u0131z de\u011ferleri ayn\u0131 zamanda y\u00fczeysel de\u011ferlerdir, par\u00e7ac\u0131klar\u0131n varl\u0131\u011f\u0131n\u0131n h\u0131z\u0131 de\u011ferlendirirken dikkate al\u0131nmad\u0131\u011f\u0131n\u0131, yo\u011fun faz pn\u00f6matik ta\u015f\u0131ma<\/strong> i\u00e7in bile. Bu evrensel olarak kabul edilir. Bu de\u011ferler i\u00e7in \u00e7o\u011fu veri, asgari pn\u00f6matik ta\u015f\u0131y\u0131c\u0131 hava h\u0131z\u0131 i\u00e7in oldu\u011fu gibi, genellikle deneysel olarak belirlenebilir.Ya da i\u015fletme tecr\u00fcbemizden :-). \u00a0Tecr\u00fcbe almak \u00e7ok zahmetli ve masrafl\u0131 bir i\u015ftir :-).<\/p>\n

Pn\u00f6matik ta\u015f\u0131ma\u00a0sistemlerinde par\u00e7ac\u0131k H\u0131z\u0131<\/strong><\/h2>\n

Seyrek faz pn\u00f6matik ta\u015f\u0131ma<\/strong><\/a>, havadaki s\u00fcspansiyonlu par\u00e7ac\u0131klarla, nakil mekanizmas\u0131n\u0131n s\u00fcr\u00fckleme kuvvetlerinden biridir. Bu nedenle par\u00e7ac\u0131klar\u0131n h\u0131z\u0131, bundan daha d\u00fc\u015f\u00fck olacakt\u0131r. Pn\u00f6matik ta\u015f\u0131ma<\/strong> par\u00e7ac\u0131k h\u0131z\u0131n\u0131 \u00f6l\u00e7mek zor ve karma\u015f\u0131k bir s\u00fcre\u00e7tir, ve ara\u015ft\u0131rma geli\u015ftirme ama\u00e7lar\u0131 d\u0131\u015f\u0131nda partik\u00fcl h\u0131z\u0131 nadiren \u00f6l\u00e7\u00fcl\u00fcr. Genelde pn\u00f6matik nakillerde sadece havan\u0131n h\u0131z\u0131 \u00f6l\u00e7\u00fcl\u00fcr.<\/p>\n

Yatay bir boru hatt\u0131nda, par\u00e7ac\u0131klar\u0131n h\u0131z\u0131, tipik olarak, yakla\u015f\u0131k% 80’dir hava ta\u015f\u0131ma h\u0131z\u0131na oran\u0131. Bu, genellikle, bir kay\u0131\u015f oran\u0131 a\u00e7\u0131s\u0131ndan ifade edilir; par\u00e7ac\u0131klar\u0131n h\u0131z\u0131, par\u00e7ac\u0131klar\u0131n ta\u015f\u0131nan havan\u0131n h\u0131z\u0131na b\u00f6l\u00fcnerek, \u00a0bu durumda 0.8 olurdu. Bu de\u011fer, par\u00e7ac\u0131k boyutuna, \u015fekline ve yo\u011funlu\u011funa \u00a0dolay\u0131s\u0131yla son derece geni\u015f bir aral\u0131kta de\u011fi\u015febilir. Dikey olarak yukar\u0131 do\u011fru bir boru hatt\u0131ndaki ak\u0131\u015f, kay\u0131\u015f oran\u0131n\u0131n tipik bir de\u011feri yakla\u015f\u0131k 0.7 olacakt\u0131r. Bu de\u011ferler, al\u0131\u015f noktas\u0131ndan uzaktaki boru hatlar\u0131ndaki sabit ak\u0131\u015f ko\u015fullar\u0131yla ilgilidir.<\/p>\n

Malzemenin boru hatt\u0131na beslendi\u011fi \u00a0boru hatt\u0131nda ve di\u011fer olas\u0131 durumlarda ak\u0131\u015f bozukluklar\u0131. Esasen s\u0131f\u0131r h\u0131z\u0131na sahip olacak. Malzeme daha sonra havay\u0131 kay\u0131\u015f h\u0131z\u0131 de\u011ferine iletir. Bu i\u015flem boru hatt\u0131 uzunlu\u011funu gerektirir. Birka\u00e7 metre ve bu mesafe ivme uzunlu\u011fu olarak adland\u0131r\u0131l\u0131r. Ger\u00e7ek uzakl\u0131k, par\u00e7ac\u0131k b\u00fcy\u00fckl\u00fc\u011f\u00fc, \u015fekli ve yo\u011funlu\u011funa bir kez daha ba\u011fl\u0131 olacakt\u0131r.<\/p>\n

Pn\u00f6matik Ta\u015f\u0131ma Sistemleri Malzeme Hava Oran\u0131<\/strong><\/h3>\n

Kat\u0131 y\u00fckleme oran\u0131 ya da faz yo\u011funlu\u011fu, pn\u00f6matik ta\u015f\u0131man\u0131n<\/strong><\/a> g\u00f6r\u00fcnt\u00fclenmesine yard\u0131mc\u0131 olan yararl\u0131 bir parametredir. Ak\u0131\u015f: Ta\u015f\u0131nan maddenin k\u00fctle ak\u0131\u015f oran\u0131n\u0131n, k\u00fctleye b\u00f6l\u00fcnmesi oran\u0131d\u0131r. Malzemeyi iletmek i\u00e7in kullan\u0131lan havan\u0131n ak\u0131\u015f h\u0131z\u0131. Boyutsuz bir bi\u00e7imde ifade edilir:<\/p>\n

P1 V1 \u00a0= \u00a0P2 V2 \u00a0<\/strong><\/p>\n

\u03a6: Kat\u0131 y\u00fck y\u00fckleme oran\u0131 (boyutsuz),<\/p>\n

mp, malzemenin k\u00fctle ak\u0131\u015f\u0131 h\u0131z\u0131n\u0131 (Ton \/ saat)<\/p>\n

ve ma, havan\u0131n k\u00fctle ak\u0131\u015f h\u0131z\u0131 (kg \/ s).<\/p>\n

Denklemde 3.6’n\u0131n sabi de\u011ferdir.<\/p>\n

Ta\u015f\u0131nan maddenin veya par\u00e7ac\u0131klar\u0131n k\u00fctle ak\u0131\u015f h\u0131z\u0131 genellikle Ton \/ saat\u00a0cinsinden ifade edilir ve havan\u0131n k\u00fctle ak\u0131\u015f h\u0131z\u0131 genellikle hesaplama ile kg \/ s cinsinden t\u00fcretilir, \u00d6zellikle Bu parametrenin kullan\u0131\u015fl\u0131 \u00f6zelli\u011fi, de\u011ferinin esasen sabit kalmas\u0131d\u0131r hava h\u0131z\u0131 ve hacimsel ak\u0131\u015f oran\u0131n\u0131n ta\u015f\u0131nmas\u0131ndan farkl\u0131 olarak, \u00a0bir boru hatt\u0131 uzunlu\u011fu boyunca bunlar s\u00fcrekli de\u011fi\u015fiyor.<\/p>\n

Seyrek\u00a0 pn\u00f6matik ta\u015f\u0131ma sistemleri<\/strong> i\u00e7in, maksimum kat\u0131 madde y\u00fcklenme oran\u0131 olabilir elde edilen de\u011ferler tipik olarak yakla\u015f\u0131k 15’dir. Bu de\u011fer, e\u011fer ta\u015f\u0131ma hatt\u0131 bas\u0131n\u00e7 d\u00fc\u015f\u00fc\u015f\u00fc y\u00fcksekse veya d\u00fc\u015f\u00fck ta\u015f\u0131yan hava h\u0131z\u0131n\u0131n de\u011feri kullan\u0131labilir. Hava bas\u0131nc\u0131 d\u00fc\u015f\u00fckse veya boru hatt\u0131 \u00e7ok uzunsa, kat\u0131lar\u0131n y\u00fckleme oran\u0131 de\u011feri \u00e7ok daha d\u00fc\u015f\u00fck olacakt\u0131r.<\/p>\n

Hareketli yatak ak\u0131\u015flar\u0131 i\u00e7in kat\u0131 y\u00fcklenme oranlar\u0131 en \u00a0\u00a020 olmal\u0131d\u0131r bununla birlikte, pn\u00f6matik ta\u015f\u0131mada<\/strong> \u00a0kat\u0131lar\u0131n y\u00fckleme oranlar\u0131 100’\u00fcn \u00e7ok \u00fczerinde oldu\u011fu durumlar \u00e7ok yayg\u0131nd\u0131r.<\/p>\n

\u00c7imento ve ince u\u00e7ucu k\u00fcl gibi malzemeler \u00fczerine sunaca\u011f\u0131m\u0131z veriler, Yatay veya d\u00fc\u015fey olsun, 100’den fazla kat\u0131 y\u00fck oranlar\u0131n\u0131 zamanla bildirece\u011fiz. Hareketli yatak pn\u00f6matik ta\u015f\u0131ma ak\u0131\u015f\u0131nda \u00e7ok y\u00fcksek kat\u0131 y\u00fck oran\u0131 oranlar\u0131n\u0131 elde edilir. Bunun nedeni ise hava debisi hava h\u0131z\u0131 ile do\u011fru orant\u0131l\u0131d\u0131r ve hava debisi daha azd\u0131r. T\u0131pa\u00e7 tipi ak\u0131\u015f i\u00e7in, kat\u0131 y\u00fck oran\u0131n\u0131n kullan\u0131m\u0131 denkleme uygun de\u011fildir malzemelerin \u00e7ok ge\u00e7irgen olmas\u0131 gerekti\u011fi i\u00e7in, hava t\u0131palar vas\u0131tas\u0131yla malzemeye kolayl\u0131kla n\u00fcfuz edilir m maksimum kat\u0131 y\u00fck oran\u0131n\u0131 yakalamak i\u00e7in.<\/p>\n

Pn\u00f6matik ta\u015f\u0131ma sistemlerinin<\/strong><\/a> alternatiflere k\u0131yasla \u00e7ok say\u0131da avantaj\u0131 olmas\u0131na ra\u011fmen malzemelerin ta\u015f\u0131nmas\u0131 i\u00e7in mekanik ta\u015f\u0131ma sistemlerine g\u00f6re , dezavantajlar\u0131 vard\u0131r, \u00f6zellikle sadece seyrek fazda ta\u015f\u0131nabilen malzemeler i\u00e7in. Par\u00e7ac\u0131k bozulmas\u0131 boru hatt\u0131 k\u0131vr\u0131mlar\u0131n\u0131n a\u015f\u0131nmaya maruz kalmas\u0131 \u00f6zel \u00f6rneklerdir. Y\u00fcksek pn\u00f6matik ta\u015f\u0131ma kapasitesi<\/strong> nedeniyle y\u00fcksek hava h\u0131z\u0131 gereklidir, filtre gereksinimleri de y\u00fcksektir mekanik ta\u015f\u0131maya g\u00f6re. \u00a0Ancak Yo\u011fun faz pn\u00f6matik ta\u015f\u0131mada<\/strong> d\u00fc\u015f\u00fck ta\u015f\u0131ma h\u0131zlar\u0131 nedeniyle malzeme a\u015f\u0131nmalar\u0131 minimum seviyededir.Malzeme hava oran\u0131 \u00e7ok y\u00fcksek oldu\u011fu i\u00e7in seyrek fazdaki gibi b\u00fcy\u00fck filtrelere olan ihtiya\u00e7lar\u0131 da ortadan kald\u0131rm\u0131\u015ft\u0131r.<\/p>\n

Son y\u0131llarda yo\u011fun faz pn\u00f6matik ta\u015f\u0131ma sistemlerinde<\/strong><\/a> bir\u00e7ok geli\u015fmeler kaydedildi, \u00a0i\u00e7inde daha geni\u015f bir materyal yelpazesi ta\u015f\u0131ma kapasitesini art\u0131rmay\u0131 ama\u00e7lad\u0131. Yo\u011fun faz ve dolay\u0131s\u0131yla d\u00fc\u015f\u00fck h\u0131z a\u015f\u0131nmalar\u0131 minimum seviyelere getirtti.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Seyrek faz pn\u00f6matik ta\u015f\u0131ma i\u00e7in nispeten y\u00fcksek bir ta\u015f\u0131ma havas\u0131 h\u0131z\u0131 muhafaza edilmelidir. Bu, tipik olarak ince bir toz i\u00e7in 12 m \/ saniye, 16 m \/ saniye gran\u00fcl malzeme i\u00e7in ayr\u0131ca \u00a0ve daha b\u00fcy\u00fck par\u00e7ac\u0131klar ve daha y\u00fcksek yo\u011funluklu malzemeler i\u00e7in \u00f6te pn\u00f6matik ta\u015f\u0131ma hava uygulanmal\u0131d\u0131r. \u00a0Yo\u011fun faz pn\u00f6matik ta\u015f\u0131ma da ise, hava h\u0131zlar\u0131 3 m \/ saniyeye kadar […]<\/p>\n","protected":false},"author":1,"featured_media":98,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/posts\/94"}],"collection":[{"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/comments?post=94"}],"version-history":[{"count":4,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/posts\/94\/revisions"}],"predecessor-version":[{"id":223,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/posts\/94\/revisions\/223"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/media\/98"}],"wp:attachment":[{"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/media?parent=94"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/categories?post=94"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.teknoconvey.com\/blog\/wp-json\/wp\/v2\/tags?post=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}