{"id":49354,"date":"2019-11-17T19:57:30","date_gmt":"2019-11-17T18:57:30","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-quun-voyage-de-turbine-definition\/"},"modified":"2020-02-19T13:51:42","modified_gmt":"2020-02-19T12:51:42","slug":"quest-ce-quun-voyage-de-turbine-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quun-voyage-de-turbine-definition\/","title":{"rendered":"Qu&#8217;est-ce qu&#8217;un voyage de turbine &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Le signal de d\u00e9clenchement de la turbine d\u00e9clenche la fermeture rapide de toutes les vannes d&#8217;entr\u00e9e de vapeur (par exemple, les vannes d&#8217;arr\u00eat de turbine &#8211; TSV) afin de bloquer le flux de vapeur \u00e0 travers la turbine.\u00a0G\u00e9nie thermique<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>Voyage en turbine<\/h2>\n<p>Chaque turbine \u00e0 vapeur est \u00e9galement dot\u00e9e de\u00a0<strong>r\u00e9gulateurs d&#8217;urgence<\/strong>\u00a0qui interviennent dans des conditions sp\u00e9cifiques.\u00a0En g\u00e9n\u00e9ral, un\u00a0<strong>arr\u00eat\u00a0<\/strong><strong>impr\u00e9vu<\/strong>\u00a0ou d&#8217;\u00a0<strong>urgence<\/strong>\u00a0d&#8217;une turbine est appel\u00e9 \u00ab\u00a0<strong>d\u00e9clenchement de turbine<\/strong>\u00a0\u00bb.\u00a0Le\u00a0signal de d\u00e9clenchement de la\u00a0<strong>turbine<\/strong>\u00a0d\u00e9clenche\u00a0<strong>la fermeture rapide<\/strong>\u00a0de\u00a0<strong>toutes les vannes d&#8217;entr\u00e9e de vapeur<\/strong>\u00a0\u00a0(par exemple, les vannes d&#8217;arr\u00eat de turbine &#8211; TSV) afin de bloquer le flux de vapeur \u00e0 travers la turbine.<\/p>\n<p>L&#8217;\u00e9v\u00e9nement de d\u00e9clenchement de turbine est un transitoire postul\u00e9 standard, qui doit \u00eatre analys\u00e9 dans le rapport d&#8217;analyse de la s\u00fbret\u00e9 (SAR) des centrales nucl\u00e9aires.<\/p>\n<p>Lors d&#8217;un d\u00e9clenchement de turbine, un dysfonctionnement d&#8217;une turbine ou d&#8217;un syst\u00e8me de r\u00e9acteur provoque le d\u00e9clenchement de la turbine hors de la ligne en arr\u00eatant brusquement le flux de vapeur dans la turbine.\u00a0Les causes courantes d&#8217;un d\u00e9clenchement de turbine sont par exemple:<\/p>\n<ul>\n<li>la vitesse de l&#8217;arbre de la turbine augmente au-del\u00e0 d&#8217;une valeur sp\u00e9cifique (par exemple, 110%) &#8211;\u00a0<strong>survitesse de la turbine<\/strong><\/li>\n<li>l&#8217;\u00e9quilibrage de la turbine est perturb\u00e9 ou d\u00fb \u00e0 de\u00a0<strong>fortes vibrations<\/strong><\/li>\n<li><strong>d\u00e9faillance<\/strong>\u00a0du syst\u00e8me de lubrification<\/li>\n<li><strong>vide faible<\/strong>\u00a0dans le condenseur<\/li>\n<li>d\u00e9clenchement\u00a0<strong>manuel d&#8217;<\/strong>\u00a0urgence de la turbine<\/li>\n<\/ul>\n<p>Apr\u00e8s un arr\u00eat de la turbine, le r\u00e9acteur est g\u00e9n\u00e9ralement d\u00e9clench\u00e9 directement \u00e0 partir d\u2019un signal d\u00e9riv\u00e9 du syst\u00e8me.\u00a0D&#8217;autre part, le syst\u00e8me de protection du r\u00e9acteur d\u00e9clenche un signal de d\u00e9clenchement de la turbine \u00e0 chaque d\u00e9clenchement du r\u00e9acteur.\u00a0Comme il reste encore de l\u2019\u00e9nergie dans le syst\u00e8me d\u2019alimentation nucl\u00e9aire en vapeur (NSSS), le syst\u00e8me de d\u00e9rivation automatique \u00e0 turbine tiendra compte de la production de vapeur exc\u00e9dentaire.<\/p>\n<figure id=\"attachment_17846\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-17846\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min.png\"><img loading=\"lazy\" class=\"size-large wp-image-17846 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min-1024x529.png\" alt=\"Turbine \u00e0 vapeur de 3000MWth PWR typique\" width=\"669\" height=\"346\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min-1024x529.png\" \/><\/a><figcaption id=\"caption-attachment-17846\" class=\"wp-caption-text\">Sch\u00e9ma d&#8217;une turbine \u00e0 vapeur d&#8217;un REP typique de 3000 MWth.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><\/div>\n<\/div>\n<\/div>\n<div tabindex=\"0\" role=\"button\">\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Cet article est bas\u00e9 sur la traduction automatique de l&#8217;article original en anglais. Pour plus d&#8217;informations, voir l&#8217;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&#8217;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Le signal de d\u00e9clenchement de la turbine d\u00e9clenche la fermeture rapide de toutes les vannes d&#8217;entr\u00e9e de vapeur (par exemple, les vannes d&#8217;arr\u00eat de turbine &#8211; TSV) afin de bloquer le flux de vapeur \u00e0 travers la turbine.\u00a0G\u00e9nie thermique Voyage en turbine Chaque turbine \u00e0 vapeur est \u00e9galement dot\u00e9e de\u00a0r\u00e9gulateurs d&#8217;urgence\u00a0qui interviennent dans des conditions &#8230; <a title=\"Qu&#8217;est-ce qu&#8217;un voyage de turbine &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quun-voyage-de-turbine-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce qu&#8217;un voyage de turbine &#8211; D\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce qu&#039;un voyage de turbine - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"Le signal de d\u00e9clenchement de la turbine d\u00e9clenche la fermeture rapide de toutes les vannes d\u2019admission de vapeur (par exemple, les vannes d\u2019arr\u00eat de la turbine) afin de bloquer le flux de vapeur \u00e0 travers la turbine. 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