{"id":3448,"date":"2012-03-22T11:05:39","date_gmt":"2012-03-22T09:05:39","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=3448"},"modified":"2012-03-22T11:05:39","modified_gmt":"2012-03-22T09:05:39","slug":"scambiatori-di-calore","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/3448\/scambiatori-di-calore\/","title":{"rendered":"Scambiatori di calore"},"content":{"rendered":"<p><strong><a href=\"http:\/\/www.tempco.it\/prodotti.asp?ID=84\" target=\"_blank\">Scambiatori a piastre<\/a><\/strong><\/p>\n<p><strong>Elementi tipici.<\/strong> Sono costituiti da un pacco di piastre tutte uguali, ottenute da lamiera per stampaggio a freddo con differenti \u00a0forme di corrugazioni superficiali, aventi angoli differenti a seconda dello schema termico che si desidera ottenere.<\/p>\n<p>I fluidi lambiscono le piastre, percorrendo i canali che si formano tra di esse, che inducono il fluido in moto turbolento anche a basse velocit\u00e0.<\/p>\n<p>Le piastre sono sostenute da un telaio e pressate da una testata mobile del medesimo.<\/p>\n<p>Sono modulari, facilmente smontabili per pulizia o successivi ampliamenti, hanno basse perdite di carico (cadute di pressione), in caso di perdite garantiscono\u00a0l&#8217;impossibilit\u00e0 del trafilamento da un fluido verso l&#8217;altro, grazie al doppio effetto della guarnizione.<\/p>\n<p><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-B1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-3461\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-B1-300x158.jpg\" alt=\"\" width=\"300\" height=\"158\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-B1-300x158.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-B1.jpg 912w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-C1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-3462\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-C1-300x174.jpg\" alt=\"\" width=\"300\" height=\"174\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-C1-300x174.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella-C1.jpg 910w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><!--more--><br \/>\n<strong>Dettagli costruttivi.<\/strong><\/p>\n<p>Ogni piastra \u00e8 dotata di sedi per le guarnizioni di tenuta, riscontri per l&#8217;accoppiamento delle piastre duranet la fase di montaggio, due coppie di fori per l&#8217;ingresso e l&#8217;uscita dei fluidi e corrugazioni di varie forme.<\/p>\n<p>La funzione delle diverse corrugazioni, come anticipato quelche riga sopra sono:<\/p>\n<ul>\n<li>irrigidimento meccanico e tenuta alle pressioni<\/li>\n<li>ottimizzazione della distribuzione del fluido su tutta la superficie<\/li>\n<li>incremento della turbolenza che migliora il coefficiente di scambio termico globale.<\/li>\n<\/ul>\n<p><strong>Materiali.<\/strong><\/p>\n<p>Generalmente impiegato l&#8217;acciaio inossidabile AISI 304 e 316.<\/p>\n<p>in caso si debbano trattare fluidi particolari, altri materiali sono disponibili:<\/p>\n<ul>\n<li>titanio<\/li>\n<li>cupronichel<\/li>\n<li>Incoloy 825<\/li>\n<li>Hastelloy C<\/li>\n<\/ul>\n<p>Le guarnizioni sono realizzate con materiale elastomerico variabile a seconda del fluido e della sua temperatura:<\/p>\n<ul>\n<li>Nitrile<\/li>\n<li>EDPM<\/li>\n<li>GOMMA FLUORURATA<\/li>\n<\/ul>\n<p><strong>Schemi di flusso.<\/strong><\/p>\n<p>Ogni piastra ha quattro fori negli angoli.<\/p>\n<p>Quando le piastre vengono serrate tra i fusti si allineano, formando i collettori di distribuzione dei fluidi, che vengono alimentati dai raccordi presenti sulle testate.<\/p>\n<p>I passaggi tra le piastre possono essere alimentati: in serie, in parallelo o in modo misto (serie-parallelo), in equicorrente o in controcorrente, a seconda degli schemi termici che si devono realizzare<\/p>\n<p><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-3455\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella1-300x97.jpg\" alt=\"\" width=\"300\" height=\"97\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella1-300x97.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella1-1024x332.jpg 1024w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2012\/03\/Tabella1.jpg 1493w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><br \/>\n<strong><br \/>\n<\/strong><\/p>\n<p><strong>Costi.<\/strong><\/p>\n<p>Equivalenti a quelli degli scambiatori a fascio tubiero, se necessita l&#8217;uso di acciaio inox solo dal lato tubi; nettamente inferiori, se l&#8217;acciaio inox \u00e8 richiesto anche dal lato mantello.<\/p>\n<p>Gli scambiatori a piastre diventano decisamente competitivi, nel caso si debbano realizzare schemi termici con differenza di temperatura media bassa ed incroci di temperatura<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scambiatori a piastre Elementi tipici. Sono costituiti da un pacco di piastre tutte uguali, ottenute da lamiera per stampaggio a [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,49,9],"tags":[],"class_list":["post-3448","post","type-post","status-publish","format-standard","hentry","category-glossary","category-scambiatori-a-piastre","category-scambiatori-di-calore"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Scambiatori di calore - Tempco Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tempco.it\/blog\/3448\/scambiatori-di-calore\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scambiatori di calore - Tempco Blog\" \/>\n<meta property=\"og:description\" content=\"Scambiatori a piastre Elementi tipici. 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