{"id":53224,"date":"2025-01-27T13:06:15","date_gmt":"2025-01-27T12:06:15","guid":{"rendered":"https:\/\/grupoalava.rearmachine.com\/preditec\/servicios\/analise-avancada\/analise-e-diagnostico-de-turbomaquinas\/"},"modified":"2026-06-08T16:15:39","modified_gmt":"2026-06-08T14:15:39","slug":"analise-e-diagnostico-de-turbomaquinas","status":"publish","type":"servicios-preditec","link":"https:\/\/grupoalava.rearmachine.com\/pt\/preditec\/servicios\/analise-avancada\/analise-e-diagnostico-de-turbomaquinas\/","title":{"rendered":"An\u00e1lise e diagn\u00f3stico de turbom\u00e1quinas"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-background-color:#f8fafd;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-stretch fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-padding-right:22px;--awb-padding-left:20px;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:0px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:0px;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:0px;--awb-spacing-left-medium:0px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:28px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"font-family:&quot;Roboto&quot;;font-style:normal;font-weight:300;margin:0;font-size:1em;--fontSize:28;line-height:1.14;\">Servi\u00e7o de an\u00e1lise e diagn\u00f3stico para turbo-geradores PRE-7028<\/h2><\/div><div class=\"fusion-text fusion-text-1\"><p>As turbom\u00e1quinas requerem equipamentos especiais multicanal para registar em paralelo as vibra\u00e7\u00f5es dos sensores instalados na m\u00e1quina.<\/p>\n<p>O arranque de uma unidade turbo-alternadora (turbina a g\u00e1s ou a vapor) \u00e9 uma opera\u00e7\u00e3o transit\u00f3ria que envolve riscos, mas que, ao mesmo tempo, fornece informa\u00e7\u00f5es muito mais significativas sobre o estado de funcionamento do que \u00e9 poss\u00edvel em funcionamento em estado estacion\u00e1rio.<\/p>\n<p>As carater\u00edsticas estruturais dos rotores de veio flex\u00edvel e as condi\u00e7\u00f5es de funcionamento da unidade em termos de temperatura, expans\u00e3o diferencial, compensa\u00e7\u00e3o de excentricidade, desequil\u00edbrio residual, liga\u00e7\u00e3o \u00e0 rede, aumento de carga, etc., constituem uma s\u00e9ria amea\u00e7a \u00e0 din\u00e2mica das turbom\u00e1quinas se n\u00e3o houver capacidade para monitorizar as vari\u00e1veis cr\u00edticas durante o arranque da unidade.<\/p>\n<p>O controlo da rodagem do turbo-alternador permite a visualiza\u00e7\u00e3o em tempo real dos vectores de vibra\u00e7\u00e3o durante a rodagem ou a desacelera\u00e7\u00e3o, fornecendo um conhecimento quantitativo e qualitativo do seu comportamento din\u00e2mico, de modo a prever se ser\u00e1 capaz de ultrapassar as condi\u00e7\u00f5es cr\u00edticas sem incorrer no risco de danificar rolamentos, vedantes de vapor e outros componentes.<\/p>\n<p>O registo transiente dos sinais de vibra\u00e7\u00e3o permite caraterizar a din\u00e2mica do rotor em diferentes condi\u00e7\u00f5es de RPM (frequ\u00eancias cr\u00edticas) e de carga de funcionamento (varia\u00e7\u00f5es de n\u00edvel), e estabelecer a linha de base como refer\u00eancia do estado mec\u00e2nico em termos de histerese em passos de frequ\u00eancia cr\u00edtica, an\u00e1lise espetral, an\u00e1lise orbital, eleva\u00e7\u00e3o hidrodin\u00e2mica, etc.<\/p>\n<p>O controlo da rodagem e o registo de transientes s\u00e3o efectuados simultaneamente gra\u00e7as \u00e0s elevadas capacidades de processamento de dados e de visualiza\u00e7\u00e3o em tempo real dos sistemas baseados em PC:<\/p>\n<ul>\n<li>Liga\u00e7\u00e3o da unidade de aquisi\u00e7\u00e3o de dados \u00e0s sa\u00eddas de buffer dos racks de prote\u00e7\u00e3o da m\u00e1quina. &#8220;Montagem posterior de sensores existentes na m\u00e1quina. <\/li>\n<li>Coloca\u00e7\u00e3o tempor\u00e1ria de sondas adicionais (ICP, Eddy, &#8230;) nos pontos mais representativos da m\u00e1quina (pedestais e caixas), e liga\u00e7\u00e3o \u00e0 unidade de aquisi\u00e7\u00e3o de dados.<\/li>\n<li>Lan\u00e7amento do turbocompressor, monitoriza\u00e7\u00e3o e registo de dados durante a rampa de acelera\u00e7\u00e3o, passagem cr\u00edtica, velocidade e temporiza\u00e7\u00e3o, acoplamento \u00e0 rede e rampa de carga at\u00e9 ao estado estacion\u00e1rio.<\/li>\n<li>Controlo de rampa de acordo com os n\u00edveis de vibra\u00e7\u00e3o previs\u00edveis acima dos n\u00edveis cr\u00edticos, acionamento de grupo ou passagem controlada, consoante o caso.<\/li>\n<li>Valida\u00e7\u00e3o das sondas existentes (GAP, ru\u00eddo, &#8230;), determina\u00e7\u00e3o dos n\u00edveis de alerta e de perigo das estantes de prote\u00e7\u00e3o, bem como dos seus factores de multiplica\u00e7\u00e3o em cada etapa cr\u00edtica (&#8220;multiplicador de limiar&#8221;).<\/li>\n<\/ul>\n<p>Para mais informa\u00e7\u00f5es, contacta o departamento de vendas da Preditec.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A Preditec oferece servi\u00e7os avan\u00e7ados de diagn\u00f3stico de turbom\u00e1quinas<\/p>\n","protected":false},"featured_media":53225,"parent":53052,"menu_order":0,"template":"","categoria-servicio-precitec":[7623,7632],"class_list":["post-53224","servicios-preditec","type-servicios-preditec","status-publish","has-post-thumbnail","hentry","categoria-servicio-precitec-ficha-de-servico","categoria-servicio-precitec-analise-avancada"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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